KR100558691B1 - Material holding device for numerical control machine tool - Google Patents

Abstract

The present invention is a machining material holding device for a numerically controlled machine tool having a mounting table, a holding member, and an elastic member coupled to a turret, formed on one end of the mounting plate 121 and the shaft hole 122a is drilled in the center thereof. Circular insertion portion 120 having a circular concave groove 122, and a circular insertion is inserted into the circular concave groove 122 so that the pair of holding plates 112 are rotatably coupled by the axial bolt 130, respectively. Holding member 110 having a portion 111 and the workpiece holding groove (112a), and the elastic member 140 formed on the opposite side of the workpiece holding groove (112a) to give elasticity to the holding member 110 The present invention is to provide a workpiece holding device for a numerical control machine tool consisting of a), the present invention is to clamp in the perpendicular direction of the workpiece to maximize the rotation radius and working range of the turret to improve the processing efficiency and production efficiency of the workpiece To maximize Has the advantage.

In addition, it is possible to easily clamp regardless of the diameter and size of the workpiece, thereby eliminating the inconvenience and inconvenience that the operator must manually adjust according to the diameter of the workpiece, like the conventional workpiece control device for numerical control machine tools. It is a very useful invention having an effect that can be.

Numerical control machine tool, CNC, NC, turret, lathe, holding device, processing material

Description

Holding device of processing meterial for numerical control machine             

1-Reference state of use of a conventional workpiece control device for numerical control machine tools.

Figure 2-side view of the use state of a conventional workpiece control device for numerical control machine tools.

Figure 3-An exploded perspective view of the workpiece holding device for numerical control machine tool of the present invention.

4-perspective view of a workpiece holding device for numerical control machine tool of the present invention;

5-4 is a sectional view taken along the line A-A.

Figure 6-Reference diagram for showing another embodiment of the holding member in the present invention.

7-reference diagram for showing another embodiment of the holding member in the present invention.

8-reference diagram for showing another embodiment of the elastic member in the present invention.

Figure 9-reference diagram for showing another embodiment of the elastic member in the present invention.

10-reference state of use of the workpiece holding device for numerical control machine tool of the present invention.

11 is a side view of a state of use of the workpiece holding apparatus for numerical control machine tool of the present invention.

* Explanation of symbols for main parts of the drawings

1: Processing material holding device for conventional numerical control machine tool

100: the invention workpiece holding device for numerical control machine tools (hereinafter referred to as holding device)

110: holding member 111: circular insertion portion

111a: engaging jaw 112: holding plate

112a: workpiece holding groove 112b: holding block

112c: workpiece insertion groove 112d: fastener

112: workpiece insertion groove 113: coupling hole

114: locking projection groove

120: mounting base 121: coupling portion

122: recessed groove 122a: shaft hole

123: jamming

130: shaft bolt 131: fastener

140: elastic member 140a: compression spring

140b: Damper

130: shaft 131: fastener

A: Workpiece B: Chuck

C: Turret

The present invention relates to a workpiece holding device for a numerically controlled machine tool, and more particularly to a workpiece holding device for a numerically controlled machine tool to widen the moving radius of the turret to increase the processing efficiency of the workpiece.

In general, numerically controlled machine tools are designed to enable fast and precise machining of processed materials (workpieces) by operating through numerical values entered into a computer (NC, Numerical Control / CNC, Computerized Numerical Control). A) is fixed to the chuck B, and the workpiece is processed sequentially by a turret C equipped with a tool such as a drill, a bite, a reamer, and the like.

At this time, the processed material (A) is to process a predetermined interval, and when the processing is completed, the process is repeated to cut again and transfer again by a predetermined interval, the process is repeated, conventionally shown in Figure 1 for transferring the predetermined interval of the workpiece "Working material holding device for numerically controlled machine tools, Korean Patent Registration No. 0258846" has been used.

However, the workpiece holding device 1 as described above has a cylindrical body, three tongs formed at an equal angle to the front end of the body so as to grip the workpiece A, and a support for fixing to the turret C. Consists of a member and an annular adjustment mechanism for adjusting the degree of spreading of the claws, so that the operator adjusts the adjustment sphere one by one according to the diameter and size of the workpiece (A), thereby adjusting the width and width of the claws Due to the deterioration of work efficiency and productivity, workability is to have a disadvantage.

In addition, the conventional workpiece holding device (1) has a structure to move in the longitudinal direction of the workpiece (A) to fix the workpiece, clamp (clamping) and then pull it out again of the workpiece holding device (1) The claw hits the cutting edge of the workpiece, that is, the corner of the right angle, and then is opened by the impact to clamp the workpiece so that it has a closed end to take into account the damage of the micro workpiece and the impact on the whole machine.

In particular, the conventional workpiece holding device (1) is to move the fixed workpiece (A) in the longitudinal direction as shown in Figure 2, which is the width of the turret (C) as wide as the workpiece holding device (1) The operating range, i.e., the horizontal movement interval α, is narrowed, thereby causing a serious problem that the processing range of the workpiece is limited.

The present invention has been made to solve the problems of the conventional workpiece control device for numerical control machine tools, the present invention is to minimize the wide range of the workpiece holding device mounted on the turret to maximize the movement interval of the turret In order to extend the processing range of the workpiece, and also to provide a workpiece holding device for a numerical control machine tool to hold the workpiece while moving in the direction perpendicular to the workpiece.

The configuration of the present invention will be described in detail with reference to the accompanying drawings.

3 is an exploded perspective view for showing the configuration of the present invention, the numerical control machine tool processing material holding device 100 is a mounting plate 121 is coupled to the turret (C) in the horizontal direction, and the mounting A coupling portion 120 formed at one end of the base 121 and having a circular concave groove 122 in which a shaft hole 122a is drilled at the center thereof, and fitted into the circular concave groove 122 by the shaft bolt 130. A holding member 110 having a holding plate 112 coupled to each other so as to be rotatable, and an elastic member 140 formed at an opposite side of the workpiece holding groove 112a to give elasticity to the holding plate 112. Is made of.

 At this time, the coupling portion 120 is formed in a vertical state on one end of the mounting plate 121, the holding member 110 is coupled to the coupling portion 120 in a horizontal state.

The holding member 110 is inserted into the circular recessed groove 122 of the coupling portion 120, the circular insertion portion 111 protruding on one side with the middle portion cut out so that each holding plate 112 is rotatable. It is formed to be coupled by the axial bolt 130. At this time, the circular insertion portion 111 is formed with a locking step (111a) for preventing the head portion of the shaft bolt 130 is caught off.

An elastic member 140, that is, a tension and compression spring, a damper, etc. is formed on the opposite side of the workpiece holding groove 112a around the circular insertion portion 111 so that the holding plate 112 can have elasticity. At this time, in order to control the elasticity of the elastic member, a plurality of coupling holes 113 were drilled in the holding plate 112 at regular intervals.

Therefore, the pair of holding plates 112 are normally kept in contact with each other by the elastic force of the elastic member 140, and then they are advanced in a right direction for holding the workpiece A. When going over the holding plate 112 is to be opened. As described above, the workpiece A is held in the workpiece holding groove 112a by the elastic force of the elastic member 140. On the contrary, when the workpiece A is separated, the workpiece A has a predetermined pressure in the direction perpendicular to the workpiece. This application makes it easy to escape.

As the holding plate 112 stretches elastically by the elastic member, the holding plate 112 can be held while moving in the direction perpendicular to the workpiece. As a result, as the turret moves backward, the holding plate also moves simultaneously. The workpiece can also be moved by the "β" spacing together.

In addition, the workpiece holding groove 112a has a curved arc shape to facilitate holding of a workpiece having a generally cylindrical shape, and to be held regardless of the diameter of the workpiece, and the workpiece holding groove 112a. It is also desirable to have a curved shape so that the end of the crossover is smoother than when riding over the outer circumferential surface of the workpiece.

In addition, in the present invention, the circular insertion portion 111 of the holding member 110 is fitted into the circular recessed groove 122 of the coupling portion 120 to prevent rotation of the hook 120 to one side of the coupling portion (120). 123 to protrude, and the holding plate 112 is positioned with the locking protrusion 123 in the middle. At this time, the holding plate 112 is provided with a locking protrusion insertion groove 114 so that the holding plate 112 is not always opened by the locking protrusion 123. In this way, the locking protrusion 123 serves to maintain the holding plate 112 at all times and to hold the workpiece A in the holding plate 112 more easily.

In addition, the present invention is protruded in front of the holding plate 112 as shown in Figure 6 and formed on the one side to be detachable, attaching the holding block 112b of synthetic resin material is provided with a processing material insertion groove (112c). This can prevent the damage and damage of the workpiece due to friction and impact between the workpiece (A) and the holding plate 112 having a metal material, it is possible to hold the workpiece having a large diameter It is to be able to apply and use regardless of the diameter and material of the workpiece to be able to increase the scope of use of the present invention.

In particular, the present invention, as shown in Figure 7 to increase the use efficiency, the workpiece insertion groove 112a, the coupling hole 113 and the engaging projection at a position corresponding to the center of the holding plate 112 as a reference By inserting each of the insertion groove 114, according to the specification of the workpiece (A), the operator can easily separate and use the direction change.

It is formed on the one side to hold the workpiece (A) of the general standard comprehensively, and on the other side it is possible to hold the workpiece (A) having a special specification, there is no need to manufacture each of the specifications, the characteristics of the workpiece According to this, the operator can easily replace and use, thereby reducing the manufacturing cost and increasing the use efficiency of the holding member 110.

In the present invention, the elastic member 140 has an elastic force by using a conventional spring that is low in manufacturing cost and easy to process, and may be provided with various elastic means according to the working environment and installation space. In other words, it is possible to use inexpensive and universal compression spring (140a) and tension spring, to minimize the damage and breakage caused by the corrosion phenomenon of the coiled spring and fatigue breakdown occurring during long-term use, narrow space The hydraulic damper 140b may be used in order to be installed in and to allow the operator to easily adjust the elastic force.

As such, the present invention has the effect of increasing the processing radius of the processed material by increasing the moving radius of the turret, and maximizing the working efficiency and the production efficiency of the processed material by maximizing the working range.

In addition, it is possible to easily hold regardless of the diameter and size of the workpiece, thereby eliminating the inconvenience and inconvenience that the operator must manually adjust according to the diameter of the workpiece, like the conventional workpiece control device for numerical control machine tools. It is a very useful invention having an effect that can be achieved.

Claims (4)

In the workpiece holding device for a numerically controlled machine tool having a mounting table, a holding member, an elastic member coupled to the turret Coupling portion formed on one end of the mounting table and having a circular concave groove in the center hole, and a circular insertion portion and processing to be coupled to the circular concave groove so that the pair of holding plates are rotatably coupled by the shaft bolt, respectively. And a holding member having a material holding groove, and an elastic member formed on an opposite side of the processing material holding groove to impart elasticity to the holding member. Holding device. The apparatus of claim 1, wherein the holding protrusion protrudes on one side of the coupling portion, and the holding plate having the locking protrusion insertion groove is positioned with the locking protrusion in the middle. The apparatus of claim 1, wherein the holding block made of a synthetic resin material having a processing material insertion groove on one side of the holding plate is detachable and attachable. The apparatus of claim 1, wherein the elastic member is configured to selectively use any one of a spring and a hydraulic damper.

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