CN108344351A - The automatic detection device of the annular knurl major diameter of gear shaft - Google Patents

Abstract

The invention provides an automatic detection device for the large diameter of the knurling of a gear shaft, which belongs to the technical field of machinery. It solves the problems that the existing automatic detection device for the knurled large diameter of the gear shaft has low detection accuracy and low detection efficiency. The automatic detection device for the large diameter of the knurling of the gear shaft includes a base, and the base is horizontally provided with a mounting seat 1, a mounting seat 2 and a mobile frame arranged between the mounting seat 1 and the mounting seat 2. The upper side of the mobile frame is provided with There is a V-shaped groove for placing workpieces. Mounting seat 1 is equipped with top 1 and a translation mechanism that drives top 1 to reciprocate axially. The inner side of mounting seat 2 is equipped with top 2 and a rotating mechanism that drives top 2 to rotate. On the moving frame A pressing mechanism capable of pressing the workpiece against the V-shaped groove is provided, and a probe assembly capable of abutting against the large-diameter outer wall of the knurling of the workpiece is provided on the moving frame. The automatic detection device for the large diameter of the knurling of the gear shaft has the advantages of high detection accuracy and high detection efficiency.

Description

Automatic detection device for knurl major diameter of gear shaft

technical field

The invention belongs to the technical field of inspection tools, and relates to a detection device, in particular to an automatic detection device for the knurled large diameter of a gear shaft.

Background technique

Steering gear shaft, as an important transmission component in electric steering gear, has high quality and precision requirements. Most of the steering gear shafts in the mainstream steering gear products on the market today have external spline structures. Steering gear shaft manufacturers often Processed using machining methods such as rolled splines or tooth rubbing. The detection method basically relies on the manual use of a digital display outer diameter micrometer to detect the large diameter of the knurling. This detection method has large measurement errors and low detection efficiency. The error reaches the largest when detecting external splines with small modules and multiple teeth.

Contents of the invention

The object of the present invention is to solve the above-mentioned problems in the prior art, and propose an automatic detection device for the knurled large diameter of a gear shaft with high detection accuracy and high detection efficiency.

The purpose of the present invention can be achieved through the following technical solutions: the automatic detection device for the large diameter of the knurling of the gear shaft includes a base, and the base is horizontally provided with a mounting seat 1, a mounting seat 2, and is arranged on the mounting seat 1 and the mounting base. The mobile frame between the two seats, the upper side of the mobile frame is provided with a V-shaped groove for placing the workpiece, and it is characterized in that the first mounting seat is provided with the top one and drives the top one to reciprocate axially. Translation mechanism, the inner side of the mounting seat 2 is provided with the top 2 and the rotation mechanism that drives the rotation of the top 2, and the moving frame is provided with the workpiece that can be pressed against the V-shaped groove The pressing mechanism on the above-mentioned mobile frame is provided with a probe assembly capable of abutting against the outer wall of the knurled large diameter of the workpiece.

Before testing, use standard parts for zero adjustment. When testing, first place the standard part on the V-shaped groove of the moving frame, press the workpiece on the V-shaped groove through the pressing mechanism to realize the rough positioning of the workpiece, and drive the tip to move axially through the translation mechanism to make the two ends of the workpiece Respectively lean against the top one and the top two, and fit the large diameter of the workpiece to be tested through the probe assembly, and then drive the top two to rotate through the rotating mechanism and drive the workpiece to rotate, and detect the workpiece to be tested through the probe assembly The large diameter of knurling has the advantages of high detection efficiency and relatively accurate detection.

In the above-mentioned automatic detection device for the large diameter of the knurling of the gear shaft, the translation mechanism includes a cylinder whose cylinder body is fixedly connected to the first mounting seat, the cylinder is arranged horizontally and laterally, and the cylinder of the cylinder The piston rod is fixedly connected with the top one. Driven by the cylinder to reciprocate and horizontally move the tip, it has the advantages of simple structure and high moving efficiency.

In the above-mentioned automatic detection device for the large diameter of the knurling of the gear shaft, the rotating mechanism includes a motor whose housing is fixedly connected to the mounting seat 2, and the rotating shaft of the motor is connected to the top 2 through a coupling. connected at the inner end. The rotating mechanism uses a motor to drive the top two to rotate through a coupling, which has the advantages of simple structure and reliable operation.

In the above-mentioned automatic detection device for the large diameter of the knurling of the gear shaft, a bearing sleeve is fixedly connected to the second mounting seat, the second tip passes through the bearing sleeve and the second tip is connected to the Bearings are arranged between the bearing sleeves. There is a bearing between the mounting seat 2 and the top 2, so that the top 2 can rotate smoothly.

In the above-mentioned automatic detection device for the knurled large diameter of the gear shaft, the probe assembly includes a bracket arranged on the base, and the bracket is provided with an upper probe base and a lower probe base. The lower side of the upper probe base and the upper side of the upper probe base are provided with horizontal and vertical alloy columns, and the positions of the two alloy columns are corresponding. The upper probe base and the lower probe base are both A displacement sensor is connected, and the displacement sensor is connected with an intelligent quantity instrument. During detection, the two alloy columns are against the upper and lower sides of the large diameter of the knurling of the workpiece. When the motor drives the workpiece to rotate, the deviation of the large diameter of the knurling is transmitted to the intelligent measuring instrument through the displacement sensor through the movement of the alloy column, and The detection result is displayed, and it has the advantages of high detection efficiency and accurate detection.

In the above-mentioned automatic detection device for the knurled large diameter of the gear shaft, an elastic block is arranged between the upper probe base and the corresponding displacement sensor, and an elastic block is arranged between the lower probe base and the corresponding displacement sensor. Elastic block. The alloy column can always be attached to the large diameter of the knurling of the workpiece when the displacement of the corresponding alloy column is transmitted through the above-mentioned elastic block, which has the advantages of relatively accurate detection amount and high detection efficiency.

In the above-mentioned automatic detection device for the large diameter of the knurling of the gear shaft, two guide rails arranged in parallel are arranged horizontally on the base, and sliders 1 are provided on both sides of the lower end of the mounting seat 1, and the The guide rail is embedded on the first slider, the first mounting seat is threaded with a locking screw, and the inner end of the locking screw can abut against the guide rail. After moving the mounting base to make the tip reach a proper position, the mounting base is locked on the guide rail by locking screws, which has the advantages of convenient adjustment and simple structure.

In the above-mentioned automatic detection device for the large diameter of the knurling of the gear shaft, the two sides of the lower end of the second mounting seat are provided with two sliders and the guide rail is embedded on the second slider, and the A locking screw 2 is threadedly connected to the mounting seat 2, and the inner end of the locking screw 2 can abut against the guide rail. After moving the mounting seat 2 to make the tip 2 reach a proper position, the mounting seat 2 is locked on the guide rail by locking the screw 2, which has the advantages of convenient adjustment and simple structure.

In the above-mentioned automatic detection device for the large diameter of the knurling of the gear shaft, sliders 3 are provided on both sides of the lower end of the moving frame and the guide rails are embedded in the sliders 3, and the moving A locking screw 3 is threadedly connected to the frame, and the inner end of the locking screw 3 can abut against the guide rail. After the pressing mechanism is moved to a proper position by moving the movable frame, the movable frame is locked on the guide rail by locking the screw 3, which has the advantages of convenient adjustment and relatively simple structure.

In the above-mentioned automatic detection device for the large diameter of the knurling of the gear shaft, the base is provided with a vertically arranged longitudinal guide rail, the bracket is provided with a slider 4 and the longitudinal guide rail is embedded in the slider 4 In the chute, a locking screw 4 is threadedly connected to the bracket, and the inner end of the locking screw 4 can abut against the longitudinal guide rail. After the measuring head assembly is moved to a proper position by moving the bracket vertically, the moving frame is locked on the longitudinal guide rail by locking screws 4, which has the advantages of convenient adjustment and simple structure.

In the above-mentioned automatic detection device for the large diameter of the knurling of the gear shaft, the pressing mechanism includes a pressing block arranged on the moving frame, and the lower side of the pressing block is axially fixed with two Roller and two described rollers are arranged horizontally, the upper side of the described pressure block is provided with a lifting rod, the lower end of the described lifting rod is fixedly connected with the pressure block, and the upper end of the described lifting rod is provided with A handle that can drive the lifting rod to and fro. The handle drives the pressure block to move down through the lifting rod, and the two rollers are attached to the outer wall of the workpiece to be tested, so as to realize the positioning of the workpiece, which has the advantages of simple structure and good positioning effect.

In the above-mentioned automatic detection device for the large diameter of the knurling of the gear shaft, a spring is provided between the moving frame and the lifting rod, and the spring can push the lifting rod to move downward. The spring pushes the lifting rod to move down, so that the roller can always be attached to the outer wall of the workpiece to be tested, which has the advantage of convenient detection.

Compared with the prior art, the automatic detection device for the large diameter of the knurling of the gear shaft has the following advantages:

1. Drive the top one to move axially through the cylinder so that the two ends of the workpiece are respectively against the top one and the top two, and the probe assembly is fitted with the large diameter of the workpiece to be tested, and then the motor drives the top two to rotate It also drives the workpiece to rotate, and detects the large diameter of the knurling of the workpiece through the probe assembly, which has the advantages of high detection efficiency and relatively accurate detection;

2. During detection, the two alloy columns are against the upper and lower sides of the large diameter of the knurling of the workpiece. When the motor drives the workpiece to rotate, the deviation of the large diameter of the knurling, that is, the mechanical displacement of the alloy column, will be passed through the movement of the alloy column. The displacement sensor is converted into an electrical signal and output to the smart meter, and the detection result is displayed, which has the advantages of high detection efficiency and accurate detection;

3. The handle drives the pressure block to move down through the lifting rod, and the two rollers are attached to the outer wall of the workpiece to be tested, so as to realize the positioning of the workpiece, which has the advantages of simple structure and good positioning effect;

4. The spring pushes the lifting rod to move down, so that the roller can always stick to the outer wall of the workpiece under test, which has the advantage of convenient detection.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of an automatic detection device for the major diameter of the knurling of the gear shaft.

Fig. 2 is a schematic top view of the automatic detection device for the large diameter of the knurling of the gear shaft.

FIG. 3 is a schematic cross-sectional view along line A-A of FIG. 2 .

Fig. 4 is a structural schematic diagram of the pressing mechanism of the automatic detection device.

Fig. 5 is a schematic structural view of the probe assembly of the automatic detection device.

In the figure, 1. Base; 2. Mounting seat 1; 3. Top point 1; 4. Translating mechanism; 4a, cylinder; 5. Slider 1; 6. Locking screw 1; 7. Mounting seat 2; 8. Top 2; 9. Rotating mechanism; 9a. Motor; 10. Bearing sleeve; 11. Bearing; 12. Slider 2; 13. Locking screw 2; 14. Moving frame; 14a. V-groove; 15. Slider 3; 16. Locking screw 3; 17. Pressing mechanism; 17a. Press block; 17b. Roller; 17c. Lifting rod; 17d. Handle; 18. Probe assembly; 18a. Bracket; , Lower measuring head seat; 18d, alloy column; 18e, displacement sensor; 18f, elastic block; 19, guide rail; 20, longitudinal guide rail.

Detailed ways

The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

As shown in Figures 1 to 5, the automatic detection device for the large diameter of the knurling of the gear shaft includes a base 1, and the base 1 is horizontally provided with a mounting seat 2, a mounting seat 2 7, and is arranged on the mounting seat 2 and the mounting seat 2. 7 between the mobile frame 14, the upper side of the mobile frame 14 is provided with a V-shaped groove 14a for placing workpieces, and the mounting seat-2 is provided with a top-3 and a translation mechanism 4 that drives the top-3 to reciprocate axially. The mechanism 4 includes a cylinder 4a whose cylinder body is fixedly connected to the first mounting seat 2, the cylinder 4a is arranged horizontally and laterally, and the piston rod of the cylinder 4a is fixedly connected to the top one 3. The inner side of the mounting seat 2 7 is provided with the top 2 8 and the rotating mechanism 9 that drives the top 2 8 to rotate. The rotating mechanism 9 includes a motor 9a whose housing is fixed on the mounting seat 2 7. The inner ends of the second 8 are connected, the bearing sleeve 10 is fixedly connected to the mounting base 27, the top two 8 passes through the bearing sleeve 10 and a bearing 11 is arranged between the top two 8 and the bearing sleeve 10, so that the top two 8 can rotate smoothly The advantages.

The mobile frame 14 is provided with a pressing mechanism 17 capable of pressing the workpiece against the V-shaped groove 14a. The pressing mechanism 17 includes a pressing block 17a arranged on the moving frame 14, and the lower side of the pressing block 17a is axially fixed with a Two parallel rollers 17b and two rollers 17b are arranged horizontally, the upper side of the pressing block 17a is provided with a lifting rod 17c, the lower end of the lifting rod 17c is fixedly connected with the pressing block 17a, and the upper end of the lifting rod 17c is provided with The handle 17d that can drive the elevating rod 17c to reciprocate and elevate. A spring is provided between the moving frame 14 and the lifting rod 17c, and the spring can push the lifting rod 17c to move downward.

The moving frame 14 is provided with a measuring head assembly 18 capable of abutting against the large-diameter outer wall of the knurl of the workpiece. The probe assembly 18 includes a bracket 18a arranged on the base 1, the bracket 18a is provided with an upper probe base 18b and a lower probe base 18c, the lower side of the upper probe base 18b and the upper side of the upper probe base 18b are provided with There are alloy pillars 18d arranged horizontally and vertically, and the positions of the two alloy pillars 18d correspond to each other. Both the upper measuring head base 18b and the lower measuring head base 18c are connected with displacement sensors 18e, and the displacement sensors 18e are connected with smart measuring instruments. An elastic block 18f is provided between the upper probe base 18b and the corresponding displacement sensor 18e, and an elastic block 18f is provided between the lower probe base 18c and the corresponding displacement sensor 18e.

Before testing, use standard parts for zero adjustment. When testing, first place the standard part on the V-shaped groove 14a of the moving frame 14, drive the lifting rod 17c and the pressing block 17a to move down through the handle 17d, and put the two rollers 17b against the outer side wall of the workpiece to be tested, and use the spring Push the lifting rod 17c to move down so that the two rollers 17b are always attached to the outer wall of the workpiece to be tested, press the workpiece on the V-shaped groove 14a to realize the rough positioning of the workpiece, and drive the top-3 axial direction through the cylinder 4a Move the two ends of the workpiece against the top one 3 and the top two 8 respectively, and make the two corresponding alloy columns 18d against the upper and lower sides of the knurling diameter of the workpiece through the elastic block 18f, and the motor 9a drives the workpiece to rotate At this time, through the movement of the alloy column 18d, the deviation of the large diameter of the knurling is converted into an electrical signal by the displacement sensor 18e and input to the smart meter to detect the large diameter of the knurling of the workpiece to be measured, which has the advantages of high detection efficiency and relatively accurate detection. The cylinder 4a drives the top 3 to reciprocate and horizontally move, which has the advantages of simple structure and high moving efficiency.

By setting the above-mentioned elastic block 18f to transmit the displacement of the corresponding alloy column 18d, the alloy column 18d can always be attached to the large diameter of the knurl of the workpiece, which has the advantages of relatively accurate detection and high detection efficiency.

After moving the mounting seat 12 to make the top 3 reach the proper position, lock the mounting seat 12 on the guide rail 19 through the locking screw 16, and move the mounting seat 27 to make the top 28 reach the proper position, and then lock the The second screw 13 locks the mounting base 2 7 on the guide rail 19. After the pressing mechanism 17 is moved to a suitable position by moving the movable frame 14, the movable frame 14 is locked on the guide rail 19 by locking the screw 3 16, which has the advantages of convenient adjustment and The advantages of a relatively simple structure. After the probe assembly 18 is moved to a proper position by moving the bracket 18a longitudinally, the moving frame 14 is locked on the longitudinal guide rail 20 by locking screws 4, which has the advantages of convenient adjustment and simple structure.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the present invention or go beyond the definition of the appended claims range.

Although the terms such as shell 1, body 1a, handle 1b, indicator mark direction 1c, positioning core 2, socket 2a, positioning direction 2b, positioning seat 3, concave cavity 3a, and blocking sheet 4 are frequently used in this paper, they do not The possibility of using other terms is not excluded. These terms are used only for the purpose of describing and explaining the essence of the present invention more conveniently; interpreting them as any kind of additional limitation is against the spirit of the present invention.

Claims (10)

1. the automatic detection device of the annular knurl major diameter of gear shaft, including pedestal (1), the pedestal are transversely provided with installation on (1) One (2) of seat, mounting base two (7) and the movable stand (14) being arranged between mounting base one (2) and mounting base two (7), it is described The upside of movable stand (14) is equipped with the V-groove (14a) for placing workpiece, which is characterized in that is set in the mounting base one (2) There are top one (3) and drives the translation mechanism (4) of top (3) axial reciprocating movement, the inside of the mounting base two (7) It is equipped with equipped with top two (8) and the rotating mechanism (9) for driving described top two (8) to rotate, the movable stand (14) The top-pressure mechanism (17) that workpiece can be pressed on the V-groove (14a), the movable stand (14) are equipped with and can support Lean against the gauge head component (18) on the annular knurl major diameter lateral wall of the workpiece.

2. the automatic detection device of the annular knurl major diameter of gear shaft according to claim 1, which is characterized in that the translation Mechanism (4) includes the cylinder (4a) that cylinder body is connected in the mounting base one (2), the setting of the cylinder (4a) horizontal cross And the piston rod of the cylinder (4a) is fixedly connected with described top one (3).

3. the automatic detection device of the annular knurl major diameter of gear shaft according to claim 1, which is characterized in that the rotation Mechanism (9) includes the motor (9a) that shell is connected in mounting base two (7), the shaft of the motor (9a) by shaft coupling with The inner end of described top two (8) is connected.

4. the automatic detection device of the annular knurl major diameter of gear shaft according to claim 1, which is characterized in that the installation Seat is fixed with bearing holder (housing, cover) (10) on two (7), and described top two (8) pass through the bearing holder (housing, cover) (10) and described top two (8) bearing (11) is equipped between the bearing holder (housing, cover) (10).

5. the automatic detection device of the annular knurl major diameter of gear shaft according to claim 1 or 2 or 3 or 4, which is characterized in that The gauge head component (18) includes the holder (18a) being arranged on pedestal (1), and the holder (18a) is equipped with upper gauge head Seat (18b) and lower measuring head base (18c) is all provided on the upside of the downside of the upper measuring head base (18b) and upper measuring head base (18b) Have horizontal longitudinally disposed alloy column (18d), the position of two alloy columns (18d) is corresponding, the upper measuring head base (18b) with And the lower measuring head base (18c) is respectively connected with displacement sensor (18e), the displacement sensor (18e) and Intelligent dimension measuring instrument Device is connected.

6. the automatic detection device of the annular knurl major diameter of gear shaft according to claim 5, which is characterized in that the upper survey Between headstock (18b) and corresponding displacement sensor (18e) be equipped with elastomer block (18f), the lower measuring head base (18c) with it is corresponding Displacement sensor (18e) between be equipped with elastomer block (18f).

7. the automatic detection device of the annular knurl major diameter of gear shaft according to claim 1 or 2 or 3 or 4, which is characterized in that Two guide rails (19) disposed in parallel are transversely provided on the pedestal (1), the lower end both sides of the mounting base one (2) are all provided with There is sliding block one (5) and the guide rail (19) is on the sliding block one (5), is threadedly coupled in the mounting base one (2) There is lock-screw one (6) and the inner end of the lock-screw one (6) can be resisted against on the guide rail (19).

8. the automatic detection device of the annular knurl major diameter of gear shaft according to claim 1 or 2 or 3 or 4, which is characterized in that The pedestal (1) is equipped with longitudinally disposed longitudinal rail (20), and the holder (18a) is equipped with sliding block four and described Longitudinal rail (20) is threaded with lock-screw four and described in the sliding slot of sliding block four on the holder (18a) The inner end of lock-screw four can be resisted against on the longitudinal rail (20).

9. the automatic detection device of the annular knurl major diameter of gear shaft according to claim 1 or 2 or 3 or 4, which is characterized in that The top-pressure mechanism (17) includes the briquetting (17a) being arranged on movable stand (14), and the downside of the briquetting (17a) is axial Being connected, there are two the lateral setting of the roller (17b) described in roller disposed in parallel (17b) and two, the briquettings (17a) Upside be equipped with elevating lever (17c), lower end and the briquetting (17a) of the elevating lever (17c) be fixedly connected with, the elevating lever The upper end of (17c), which is equipped with, can drive the handle (17d) that elevating lever (17c) back and forth lifts.

10. the automatic detection device of the annular knurl major diameter of gear shaft according to claim 9, which is characterized in that the shifting Spring is equipped between moving frame (14) and the elevating lever (17c), and the spring can push the elevating lever (17c) It moves down.