CN107225389B - Screw assembly quality - Google Patents

Abstract

The invention discloses a screw assembling device which comprises a screw assembling host machine for assembling screws, wherein the screw assembling host machine comprises an upper shell, a lower shell, a screw driver, a cylinder, a transmission gear assembly, a bearing a, a bearing b, a bearing c and a motor. The invention can replace manual screw assembling operation in the traditional assembling process, solves the problems of low production benefit and unstable product quality of manually installed screws, greatly improves the production efficiency and treatment, reduces the manual labor intensity, and has the characteristics of simple structure and high working efficiency.

Description

A screw assembly device

Technical field

The present invention relates to the technical field of assembly equipment, and in particular to a screw assembly device.

Background technique

Modern manufacturing industry is developing rapidly, and all kinds of machines and equipment are emerging in endlessly. No matter how small the device is, it cannot be fastened without screws. However, at present, most assembly production lines in my country still generally use manual operations for screw installation. The labor intensity of workers is high, the production efficiency is low, and the quality of manual assembly is unstable, which is far from being able to meet the needs of the development of modern machine assembly production. Although there have been reports on screw assembly equipment at home and abroad, these equipment have shortcomings such as large size, complex structure, high cost, and unstable operation.

Contents of the invention

The object of the present invention is to overcome the above-mentioned shortcomings of the background technology and provide a screw assembly device.

The invention is implemented as follows: a screw assembly device includes a screw assembly host for screw assembly. The screw assembly host includes an upper housing, a lower housing, a screwdriver, a cylinder, a transmission gear assembly, a bearing a, a bearing b, Bearing c and motor;

The upper housing is connected to the upper end of the lower housing. An upper end cover is installed on the top of the upper housing. Two cylinders arranged parallel to each other and vertically downward are installed on the upper end cover. The two cylinders The piston rods of the two cylinders are connected to connecting rods respectively. The piston rods of the two cylinders are connected to an actuating box located between the two cylinders through two connecting rods. A bearing a is fixedly connected to the actuating box, so The actuator box is provided with a screwdriver from top to bottom. The screwdriver is welded to the inner ring of the bearing a installed in the actuator box. The upper and lower surfaces of the actuator box are connected to the outer ring of the bearing a. Welded together, the actuating box, together with the actuating box equipped with bearing a, is lifted and lowered under the action of two cylinders. The motor, transmission gear a and transmission gear b are all arranged in the upper housing, and The motor is fixedly connected to one of the connecting rods, and the top end of the screwdriver is connected to the transmission gear assembly. The transmission gear assembly is driven by the motor and drives the screwdriver to rotate. The lower end of the screwdriver passes through the bottom of the upper housing. Placed in the lower housing, the lower housing is provided with bearings b and bearing c arranged at intervals up and down. The inner rings of the bearings b and c are welded together with the screwdriver. The inner rings of the bearing b and the bearing c are welded together. The outer ring of the bearing is welded to the lower shell. The lower end of the lower shell is cylindrical. A bottom opening is provided at the bottom end of the lower shell. The lower shell is on the outer wall of the lower shell above the bottom opening. There is a screw entrance.

Further, the screw assembly device also includes a screw supply device that supplies screws to the screw assembly host. The screw supply device includes a cylinder, a hopper, a V-shaped slide, a roller, and a cylindrical slide;

A hopper and a V-shaped slide are installed in the cylinder. The V-shaped slide is installed obliquely in the cylinder. The V-shaped slide is composed of two plates arranged in a V shape. The lower ends of the two plates There is a channel for the rod end of the screw to pass through. One end of the V-shaped slide is fixed to the inner wall of the cylinder, and the other end of the V-shaped slide is inclined downward and penetrates the cylinder. The hopper is installed above the top of the V-shaped slide, and the outlet of the hopper points to the V-shaped slide. Rollers are also installed on the V-shaped slide. The cylindrical slide is installed on the cylinder through a bracket. On the outside, the cylindrical slideway is inclined downward and arranged in front and below the bottom end of the V-shaped slideway. The bottom end of the cylindrical slideway is connected and communicated with the screw inlet.

Further, the transmission gear assembly includes a transmission gear a and a transmission gear b. The output shaft of the motor is connected to the transmission gear a. The transmission gear b is connected to the top end of the screwdriver. The transmission gear a is connected to the transmission gear b. The screwdriver is meshed with each other, and the screwdriver drives the transmission gear a and the transmission gear b to rotate through the motor.

Further, the screwdriver includes a screwdriver shank and a bit. The screwdriver shank is welded to the bearing inner ring of the bearing a installed in the actuation box. The top end of the screwdriver shank is connected to the transmission gear assembly.

Further, an oscillator is installed on the outside of the hopper.

Compared with the existing technology, the present invention has the following beneficial effects:

The invention provides a screw assembly device, which can replace the manual screw assembly operation in the traditional assembly process, solves the problems of low production efficiency and unstable product quality of manual screw installation, greatly improves production efficiency and treatment, and reduces manual labor. It has the characteristics of simple structure and high working efficiency.

Description of drawings

Figure 1 is a schematic structural diagram of a screw assembly device according to Embodiment 1 of the present invention;

Figure 2 is a schematic structural diagram of a screw assembly device in Embodiment 2 of the present invention;

Figure 3 is a schematic structural diagram of the screw supply device 16 in Embodiment 2 of the present invention;

Figure 4 is a schematic diagram of the matching relationship between the V-shaped slide 23 and the screws in Embodiment 2 of the present invention.

Explanation of reference symbols:

1. Screw assembly main unit, 2. Upper shell, 3. Lower shell, 4. Screwdriver, 5. Cylinder, 6. Transmission gear a, 7. Transmission gear b, 8. Bearing a, 9. Bearing b, 10. Upper end cover, 11. Connecting rod, 12. Actuator box, 13. Motor, 14. Bearing c, 15. Bottom port, 16. Screw supply device, 17. Cylinder, 18. Hopper, 19. Cylinder slide, 20. Roller, 21. Oscillator, 22. Screw inlet, 23. V-shaped slide, 24. Channel.

Detailed ways

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

Example 1

As shown in Figure 1, a screw assembly device provided by an embodiment of the present invention includes a screw assembly host 1 for screw assembly. The screw assembly host 1 includes an upper housing 2, a lower housing 3, a screwdriver 4, a cylinder 5, Transmission gear assembly, bearing a8, bearing b9, bearing c14 and motor 13;

The upper housing 2 is connected to the upper end of the lower housing 3. An upper end cover 10 is installed on the top of the upper housing 2. Two cylinders 5 arranged parallel to each other and vertically downward are installed on the upper end cover 10. The two cylinders 5 The piston rods are respectively connected to connecting rods 11. The piston rods of the two cylinders 5 are connected to an actuating box 12 located between the two cylinders 5 through the two connecting rods 11. A bearing a8 is fixedly connected in the actuating box 12. The actuator box 12 is provided with a screwdriver 4 from top to bottom. The screwdriver 4 is welded to the bearing inner ring of the bearing a8 installed in the actuator box 12. The upper and lower surfaces of the actuator box 12 are connected to the bearing outer ring of the bearing a8. Welded together, the actuator box 12, together with the actuator box 12 installed with the bearing a8, is lifted and lowered under the action of the two cylinders 5. The motor 13, transmission gear a6, and transmission gear b7 are all arranged in the upper housing 2 , and the motor 13 is fixedly connected to one of the connecting rods 11, and the top of the screwdriver 4 is connected to the transmission gear assembly. The transmission gear assembly is driven by the motor 13 and drives the screwdriver 4 to rotate. The lower end of the screwdriver 4 passes through the upper housing 2. The bottom is placed in the lower housing 3. The lower housing 3 is provided with bearings b9 and bearing c14 spaced up and down. The inner rings of the bearings b9 and c14 are welded together with the screwdriver 4. The outer bearings of the bearings b9 and c14 are welded together. The ring is welded to the lower housing 3. The lower end of the lower housing 3 is cylindrical. A bottom opening 15 is provided at the bottom end of the lower housing 3. The lower housing 3 is located on the outer wall of the lower housing 3 above the bottom opening 15. A screw inlet 22 is provided.

In the embodiment of the present invention, the transmission gear assembly includes a transmission gear a6 and a transmission gear b7. The output shaft of the motor 13 is connected to the transmission gear a6. The transmission gear b7 is connected to the top end of the screwdriver 4. The transmission gear a6 is connected to the transmission gear b7. The screwdriver 4 is engaged with each other, and the screwdriver 4 drives the transmission gear a6 and the transmission gear b7 through the motor 13 to rotate.

In the embodiment of the present invention, the screwdriver 4 includes a screwdriver shank and a bit. The screwdriver shank is welded to the bearing inner ring of the bearing a8 installed in the actuator box 12 . The top end of the screwdriver shank is connected to the transmission gear assembly. .

The working principle of the screw assembly device provided by the embodiment of the present invention is as follows:

When the screw assembly device of the embodiment of the present invention is used, the screws are transported to the screw inlet 22 of the lower housing 3 through external equipment, and then enter the inside of the lower housing 3 through the screw inlet 22 . At this time, the screws are at the position of the screwdriver 4 below and above the bottom port 15, and then control the two cylinders 5 through the controller to extend the piston rod of the cylinder 5, and then drive the screwdriver 4 to move downward, thereby using the tip end of the screwdriver 4 to push the screw out of the bottom port 15 to reach assembly position, and then the controller drives the motor 13 to run, driving the screwdriver 4 to rotate through the transmission gear assembly, so that the blade of the screwdriver 4 also rotates, thereby realizing that the screw on the blade is tightened to the installation position under the action of the rotation of the blade. , complete the screw tightening operation quickly and efficiently.

Example 2

As shown in FIGS. 2 and 3 , a screw assembly device provided by an embodiment of the present invention includes a screw assembly host 1 for screw assembly and a screw supply device 16 connected to the screw assembly host 1 to supply screws to the screw assembly host 1 .

The screw assembly host 1 includes an upper housing 2, a lower housing 3, a screwdriver 4, a cylinder 5, a transmission gear assembly, a bearing a8, a bearing b9, a bearing c14 and a motor 13;

The upper housing 2 is connected to the upper end of the lower housing 3. An upper end cover 10 is installed on the top of the upper housing 2. Two cylinders 5 arranged parallel to each other and vertically downward are installed on the upper end cover 10. The two cylinders 5 The piston rods are respectively connected to connecting rods 11. The piston rods of the two cylinders 5 are connected to an actuating box 12 located between the two cylinders 5 through the two connecting rods 11. A bearing a8 is fixedly connected in the actuating box 12. The actuator box 12 is provided with a screwdriver 4 from top to bottom. The screwdriver 4 is welded to the bearing inner ring of the bearing a8 installed in the actuator box 12. The upper and lower surfaces of the actuator box 12 are connected to the bearing outer ring of the bearing a8. Welded together, the actuator box 12, together with the actuator box 12 installed with the bearing a8, is lifted and lowered under the action of the two cylinders 5. The motor 13, transmission gear a6, and transmission gear b7 are all arranged in the upper housing 2 , and the motor 13 is fixedly connected to one of the connecting rods 11, and the top of the screwdriver 4 is connected to the transmission gear assembly. The transmission gear assembly is driven by the motor 13 and drives the screwdriver 4 to rotate. The lower end of the screwdriver 4 passes through the upper housing 2. The bottom is placed in the lower housing 3. The lower housing 3 is provided with bearings b9 and bearing c14 spaced up and down. The inner rings of the bearings b9 and c14 are welded together with the screwdriver 4. The outer bearings of the bearings b9 and c14 are welded together. The ring is welded to the lower housing 3. The lower end of the lower housing 3 is cylindrical. A bottom opening 15 is provided at the bottom end of the lower housing 3. The lower housing 3 is located on the outer wall of the lower housing 3 above the bottom opening 15. A screw inlet 22 is provided.

Compared with Embodiment 1, this embodiment is a preferred solution of the present invention. The screw assembly device of the embodiment of the present invention also includes a screw supply device 16 that supplies screws to the screw assembly host 1 . As shown in Figures 2 and 3, the screw supply device 16 includes a cylinder 17, a hopper 18, a V-shaped slide 23, a roller 20, and a cylindrical slide 19;

A hopper 18 and a V-shaped slide 23 are installed in the cylinder 17. The V-shaped slide 23 is installed obliquely in the cylinder 17. As shown in Figure 4, the V-shaped slide 23 consists of two plates arranged in a V shape. It consists of a channel 24 for the rod end of the screw to pass through between the lower ends of the two plates. One end of the V-shaped slide 23 is fixed to the inner wall of the cylinder 17, and the other end of the V-shaped slide 23 is inclined. A cylinder 17 is provided downward, and a hopper 18 is installed above the top of the V-shaped slide 23. The outlet of the hopper 18 points to the V-shaped slide 23. A roller 20 is also installed on the V-shaped slide 23. The cylinder The slide 19 is installed on the outside of the cylinder 17 through a bracket. The cylindrical slide 19 is inclined downward and arranged in front and below the bottom of the V-shaped slide 23. The bottom end of the cylindrical slide 19 is connected and connected with the screw inlet 22. .

In the embodiment of the present invention, the transmission gear assembly includes a transmission gear a6 and a transmission gear b7. The output shaft of the motor 13 is connected to the transmission gear a6. The transmission gear b7 is connected to the top end of the screwdriver 4. The transmission gear a6 is connected to the transmission gear b7. The screwdriver 4 is engaged with each other, and the screwdriver 4 drives the transmission gear a6 and the transmission gear b7 through the motor 13 to rotate.

In the embodiment of the present invention, the screwdriver 4 includes a screwdriver shank and a bit. The screwdriver shank is welded to the bearing inner ring of the bearing a8 installed in the actuator box 12 . The top end of the screwdriver shank is connected to the transmission gear assembly. .

In the embodiment of the present invention, an oscillator 21 is installed outside the hopper 18 .

The working principle of the screw assembly device provided by the embodiment of the present invention is as follows:

When the screw assembly device of the embodiment of the present invention is used, the screws are placed in the hopper 18 in the cylinder 17 in advance. Under the action of the oscillator 21, the screws in the hopper 18 successively fall into the hopper through the outlet of the hopper 18. On the V-shaped slideway 23, when the screw falls into the V-shaped slideway 23, since the V-shaped slideway 23 leaves a channel 24 for the rod end of the screw to pass through, when the screw falls into the V-shaped slideway 23 23, it is easier for the rod end of the screw to pass through the channel 24, so that the screw will naturally place the cap end of the screw above, and once the screw enters the channel 24, it will continue to slide down through the guiding function of the channel 24. , reaches the bottom end of the V-shaped slideway 23. Before the screw reaches the bottom end of the V-shaped slideway 23, since the V-shaped slideway 23 is provided with a roller 20, if it encounters a screw with the rod end facing upward, the roller 20 will Individual screws that do not meet the position requirements are removed and fall into the lower part of the cylinder 17. After reaching the bottom of the V-shaped slide 23, the screws that meet the position requirements then fall into the cylindrical slide 19, and then fall under the action of gravity. Continue to slide down and enter the inside of the lower housing 3 through the screw inlet 22. At this time, the screw is below the screwdriver 4 and above the bottom opening 15. Then the two cylinders 5 are controlled by the controller to extend the piston rod of the cylinder 5. Then drive the screwdriver 4 to move downward, thereby using the blade end of the screwdriver 4 to push the screw out of the bottom opening 15 to the assembly position, and then the controller drives the motor 13 to run, driving the screwdriver 4 to rotate through the transmission gear assembly, so that the blade of the screwdriver 4 is Following the rotation, the screw on the cutter head is tightened to the installation position under the action of the rotation of the cutter head, completing the screw tightening operation quickly and efficiently.

The screw assembly device provided by the embodiment of the present invention can automatically arrange the screws in order, and supply and assemble the screws, which solves the problems of low production efficiency and unstable product quality of manual screw installation, and greatly improves the production efficiency to meet the increasing demand for screws. production needs. It has the characteristics of simple structure, high working efficiency and broad application prospects.

The above disclosures are only preferred embodiments of the invention. However, the embodiments of the invention are not limited thereto, and any changes that can be thought of by those skilled in the art should fall within the protection scope of the invention.

Claims (3)

1. The screw assembling device is characterized by comprising a screw assembling host machine (1) for assembling screws, wherein the screw assembling host machine (1) comprises an upper shell (2), a lower shell (3), a screw driver (4), a cylinder (5), a transmission gear assembly, a bearing a (8), a bearing b (9), a bearing c (14) and a motor (13); the upper shell (2) is connected with the upper end of the lower shell (3), an upper end cover (10) is arranged at the top of the upper shell (2), two cylinders (5) which are parallel to each other and are vertically and downwards arranged are arranged on the upper end cover (10), the piston rods of the two cylinders (5) are respectively connected with a connecting rod (11), an actuating box (12) positioned between the two cylinders (5) is connected between the piston rods of the two cylinders (5) through the two connecting rods (11), a bearing a (8) is fixedly connected in the actuating box (12), a screw driver (4) is penetrated from top to bottom in the actuating box (12), the screw driver (4) is welded with the bearing inner ring of the bearing a (8) arranged in the actuating box (12), the upper surface and the lower surface in the actuating box (12) are welded with the bearing outer ring of the bearing a (8), the actuating box (12) together with the actuating box (12) provided with the bearing a (8) is connected with two motors (5), the gear (7) are arranged under the action of the two motors (5), the gear (13) are arranged in the upper end of the screw driver (4), the gear assembly (13) is connected with the upper end of the screw driver (4), the upper end of the screw driver (13) is connected with the upper end of the lower end of the screw driver (8) through the lower end of the screw driver, the screw driver is characterized in that the transmission gear assembly is driven by a motor (13) and drives a screw driver (4) to rotate, the lower end of the screw driver (4) penetrates out of the bottom of the upper shell (2) and is arranged in the lower shell (3), a bearing b (9) and a bearing c (14) which are arranged at intervals up and down are arranged in the lower shell (3), a bearing inner ring of the bearing b (9) and a bearing c (14) is welded with the screw driver (4), a bearing outer ring of the bearing b (9) and the bearing c (14) is welded with the lower shell (3), the lower end of the lower shell (3) is cylindrical, a bottom opening (15) is formed in the bottom end of the lower shell (3), and a screw inlet (22) is formed in the outer wall of the lower shell (3) above the bottom opening (15); the screw assembling device further comprises a screw feeding device (16) for feeding screws to the screw assembling host machine (1), wherein the screw feeding device (16) comprises a cylinder body (17), a hopper (18), a V-shaped slideway (23), a roller (20) and a cylinder slideway (19); the novel screw feeder is characterized in that a hopper (18) and a V-shaped slide rail (23) are installed in the barrel (17), the V-shaped slide rail (23) is obliquely installed in the barrel (17), the V-shaped slide rail (23) is composed of two plate bodies which are arranged in a V shape, a channel (24) through which a screw rod end passes is reserved between the lower ends of the two plate bodies, one end of the V-shaped slide rail (23) is fixedly connected with the inner wall of the barrel (17), the other end of the V-shaped slide rail (23) obliquely downwards penetrates out of the barrel (17), the hopper (18) is installed above the top end of the V-shaped slide rail (23), a discharge hole of the hopper (18) points to the V-shaped slide rail (23), a roller (20) is also installed on the V-shaped slide rail (23), a cylinder slide rail (19) is installed outside the barrel (17) through a bracket, the cylinder slide rail (19) is downwards obliquely arranged below the front end of the bottom end of the V-shaped slide rail (23), and the bottom end of the cylinder slide rail (19) is connected with the screw inlet (22) and keeps communication. The driving gear assembly comprises a driving gear a (6) and a driving gear b (7), an output shaft of the motor (13) is connected with the driving gear a (6), the driving gear b (7) is connected with the top end of the screwdriver (4), the driving gear a (6) is meshed with the driving gear b (7), and the screwdriver (4) drives the driving gear a (6) and the driving gear b (7) to rotate through the motor (13).

2. Screw assembly device according to claim 1, characterized in that the screwdriver (4) comprises a screwdriver shank and a tool bit, the screwdriver shank being welded together with the bearing inner ring of the bearing a (8) mounted in the actuation box (12), the tip of the screwdriver shank being connected to the transmission gear assembly.

3. Screw assembly device according to claim 1, wherein an oscillator (21) is mounted outside the hopper (18).