Chuck capable of accurately adjusting position of workpiece

Abstract

The utility model relates to the technical field of fixing clamps, and discloses a chuck capable of accurately adjusting the position of a workpiece, which comprises a disc, the top of the disc is fixedly connected with a fixing column, the top of the fixing column is fixedly connected with a motor, and the output end of the motor penetrates through the fixing column and is fixedly connected with a rotating rod. A driving bevel gear is fixedly connected to the bottom end of the rotating rod, a plurality of grooves are formed in the bottom of the fixing column at equal intervals, threaded rods are rotatably connected to the interiors of the grooves, and driven bevel gears are fixedly connected to the adjacent ends of the threaded rods; the multiple driven bevel gears are connected with one sides of the corresponding driving bevel gears in a meshed mode. According to the clamping device, the motor drives the rotating rod to rotate, the driving bevel gear drives the driven bevel gears to rotate synchronously, the stand column, the rotating block and the clamping plate are driven to move, stable clamping of irregular workpieces is achieved, the positions of the workpieces can be accurately adjusted, and the clamping device adapts to the workpieces in different shapes.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fixing clamp especially relates to a chuck of accurate adjustment work piece position. BACKGROUND

[0002] In machining, the chuck is a kind of vital mechanical component, is mainly used to hold work piece, makes work piece keep steady position in machining process, ensures the smooth operation of machining operation, and the use of chuck greatly improves machining precision and efficiency, is widely used in various machine tool equipment, is the indispensable key device to realize work piece machining.

[0003] The chuck of accurate adjustment work piece position is a special type in chuck, and its core function is to carry out high-precision fine adjustment to the position of work piece, and in modern precision machining process, the position precision of work piece is extremely high, the chuck of accurate adjustment work piece position can meet the high-precision demand, ensures that work piece is in the most ideal position state in machining process, thereby significantly improve the quality and precision of machining product.

[0004] The chuck of accurate adjustment work piece position currently is through double clamping jaw and carries out clamping, but the pressure is uneven when double clamping jaw is grabbed, and work piece can be damaged, and in the prior art, three-jaw chuck is used to carry out grabbing, can uniformly contract or expand to the center, so when round work piece is clamped, the center of work piece can be automatically aligned with the center of chuck, but in actual use, for square and irregular shape work piece, good positioning and clamping are difficult to realize. UTILITY MODEL CONTENTS

[0005] In order to make up for the above insufficient, the utility model provides a chuck of accurate adjustment work piece position, aims at improving the problem that for square and irregular shape work piece in prior art, good positioning and clamping are difficult to realize.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a chuck of accurate adjustment workpiece position, including disc, the top fixedly connected with fixed column of disc, the top fixedly connected with motor of fixed column, the output of motor penetrates fixed column and is fixedly connected with the rotating lever, the bottom fixedly connected with driving bevel gear of rotating lever, the bottom equidistance of fixed column is provided with a plurality of grooves, the inside of a plurality of grooves are all rotatably connected with threaded rod, the adjacent one end of a plurality of threaded rods is all fixedly connected with driven bevel gear, a plurality of driven bevel gears are respectively with the side meshing connection of corresponding driving bevel gear, the outer wall of a plurality of threaded rods is all threadedly connected with moving block, the bottom of a plurality of moving blocks is all fixedly connected with stand, the bottom of a plurality of stands is all rotatably connected with rotating block, the one side of a plurality of rotating blocks is all fixedly connected with clamping plate, the top of fixed column is provided with mounting mechanism, and the mounting mechanism is used for the installation of different equipment.

[0007] As further description of the above technical solution:

[0008] The mounting mechanism includes a support, the bottom of the support is fixedly connected around the top of the fixed column, a circular groove is formed in the top of the support, a plurality of arc-shaped blocks are slidably connected inside the circular groove, a plurality of L-shaped plates are fixedly connected to the top of the plurality of arc-shaped blocks, and a plurality of fixed bolts are rotatably connected to one side of the plurality of L-shaped plates.

[0009] As further description of the above technical solution:

[0010] The front side of the disc is fixedly connected with a switch, and the switch is electrically connected with the motor.

[0011] As further description of the above technical solution:

[0012] The front side of the fixed column is fixedly connected with a fixed plate, and the front side of the fixed plate is fixedly connected with a danger sign.

[0013] As further description of the above technical solution:

[0014] One side of the plurality of clamping plates is fixedly connected with a plurality of spacers, and one side of the plurality of spacers is fixedly connected with a plurality of rubber pads.

[0015] As further description of the above technical solution:

[0016] The inside of the plurality of grooves is provided with a plurality of sliding grooves on both sides, the plurality of sliding blocks are fixedly connected on both sides of the plurality of moving blocks, and the plurality of sliding blocks are slidably connected with the inside of the corresponding sliding grooves.

[0017] As further description of the above technical solution:

[0018] The outer wall of the plurality of fixing bolts is slidably connected with a gasket, and one side of the plurality of gaskets is attached to one side of the corresponding L-shaped plate.

[0019] As a further description of the above technical solution:

[0020] The plurality of moving blocks are slidably connected with the inside of the corresponding grooves, and the size of the moving block and the groove is matched.

[0021] The utility model has the advantages of the following beneficial effects:

[0022] 1. In the utility model, the motor drives the rotating rod to rotate, the rotating rod drives the driving bevel gear to rotate, the driving bevel gear drives a plurality of driven bevel gears to rotate synchronously, and then the threaded rod is rotated, the moving block is moved along the axial direction, the stand column, the rotating block and the clamping plate are moved, the stable clamping of the irregular workpiece is realized, the workpiece position can be accurately adjusted, the workpiece of different shapes is adapted, and the machining efficiency and precision are improved.

[0023] 2. In the utility model, the arc-shaped block is slid in the circular groove, the fixed L-shaped plate is driven to change the position, the operator flexibly adjusts the L-shaped plate according to the installation position, after the position is appropriate, the fixed bolt is rotated and gradually tightened, the L-shaped plate is fixed at the current position, the preliminary fixing of the grabbing and clamping at different installation positions is realized, and the adaptability and stability of the grabbing and clamping installation are improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A perspective view of the chuck for accurately adjusting the workpiece position is provided for the utility model;

[0025] Figure 2 A structure bottom view of the chuck for accurately adjusting the workpiece position is provided for the utility model;

[0026] Figure 3 For Figure 2 The enlarged view of A in the utility model is provided for the utility model;

[0027] Figure 4 A structure sectional view of the chuck for accurately adjusting the workpiece position is provided for the utility model;

[0028] Figure 5 A structure split view of the chuck for accurately adjusting the workpiece position is provided for the utility model.

[0029] LEGEND:

[0030] 1, disc; 2, mounting mechanism; 201, support; 202, round groove; 203, arc block; 204, L-shaped plate; 205, fixing bolt; 3, fixed column; 4, motor; 5, rotating rod; 6, driving bevel gear; 7, groove; 8, threaded rod; 9, driven bevel gear; 10, moving block; 11, column; 12, rotating block; 13, clamping plate; 14, switch; 15, fixed plate; 16, danger sign; 17, backing plate; 18, rubber pad; 19, sliding groove; 20, sliding block; 21, gasket. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0032] Reference Figure 1 , Figure 2 and Figure 4The utility model provides a kind of chuck of accurate adjustment workpiece position, including disc 1, disc 1 as the basis support component of entire chuck, can provide stable mounting platform for other components, its top is fixedly connected with fixed column 3, the top of fixed column 3 is fixedly connected with motor 4, motor 4 as power source, can drive rotating lever 5 rotation, the output of motor 4 penetrates fixed column 3 and is fixedly connected with rotating lever 5, rotating lever 5 can transmit motor 4 power to driving bevel gear 6, the bottom of rotating lever 5 is fixedly connected with driving bevel gear 6, driving bevel gear 6 rotation can drive the rotation of driven bevel gear 9 meshed with it, the bottom of fixed column 3 is equidistantly provided with multiple grooves 7, groove 7 can provide space for the movement of threaded rod 8 and moving block 10, the inside of multiple grooves 7 is rotatably connected with threaded rod 8, threaded rod 8 rotation can make linear motion of screwing moving block 10, the adjacent end of multiple threaded rods 8 is fixedly connected with driven bevel gear 9, driven bevel gear 9 can transmit the power of driving bevel gear 6 to threaded rod 8, multiple driven bevel gears 9 are meshed with the side of corresponding driving bevel gear 6 respectively, this meshing connection mode can realize the effective transmission and direction change of power, the outer wall of multiple threaded rods 8 is screw-connected with moving block 10, moving block 10 can drive stand column 11 to move when threaded rod 8 rotates, the bottom of multiple moving blocks 10 is fixedly connected with stand column 11, stand column 11 can transmit the movement of moving block 10 to rotating block 12, the bottom of multiple stand columns 11 is rotatably connected with rotating block 12, rotating block 12 can make clamping plate 13 angle adjustment according to workpiece shape, the side of multiple rotating blocks 12 is fixedly connected with clamping plate 13, clamping plate 13 can clamp and fix workpiece, the top of fixed column 3 is provided with mounting mechanism 2, mounting mechanism 2 can realize the installation of chuck on different equipment, mounting mechanism 2 is used for the installation of different equipment, multiple moving blocks 10 are slidably connected with the inside of corresponding groove 7, this sliding connection mode can guarantee the stability of moving block 10 movement, the size of moving block 10 and groove 7 is matched, size matching can prevent moving block 10 from shaking in groove 7, improve the precision and stability of chuck;

[0033] Specifically, the motor 4 is started, the output end of the motor 4 rotates to drive the rotating rod 5 to rotate, the driving bevel gear 6 fixedly connected to the bottom end of the rotating rod 5 rotates, the rotation of the driving bevel gear 6 drives the plurality of driven bevel gears 9 to rotate at the same time, and in turn the plurality of threaded rods 8 rotate synchronously. When the threaded rods 8 rotate, the moving blocks 10 threadedly connected thereto move along the axial direction of the threaded rods 8, the upright columns 11 fixedly connected to the bottom of the moving blocks 10 move together with the moving blocks 10, and the rotating blocks 12 rotatably connected to the bottom of the upright columns 11 also move correspondingly. Since the rotating blocks 12 are fixedly connected to one side of the clamping plates 13, the plurality of clamping plates 13 gradually approach or move away from the center during the movement process. The clamping plates 13 can be clamped to the workpiece in different positions and angles according to the contour shape of the irregular workpiece, so as to realize stable clamping of the irregular workpiece. The moving blocks 10 are provided with a moving space, so that they can move stably in the axial direction of the threaded rods 8 in the grooves 7.

[0034] With reference to Figure 1 and Figure 5 The mounting mechanism 2 includes a bracket 201, which can provide a mounting base and support for other components of the mounting mechanism 2. The bottom of the bracket 201 is fixedly connected to the top of the fixed column 3 around, so that the mounting mechanism 2 can be stably mounted on the fixed column 3. A circular groove 202 is formed in the top of the bracket 201, which can provide a sliding track and space for the arc-shaped blocks 203. A plurality of arc-shaped blocks 203 are slidably connected inside the circular groove 202. The sliding of the arc-shaped blocks 203 in the circular groove 202 can drive the L-shaped plates 204 to adjust the position. The top of each of the plurality of arc-shaped blocks 203 is fixedly connected to an L-shaped plate 204, which can be used for preliminary positioning and clamping of the workpiece. One side of each of the plurality of L-shaped plates 204 is rotatably connected to a fixed screw 205. The rotation of the fixed screw 205 can fix the L-shaped plate 204 in the appropriate position. The outer wall of each of the plurality of fixed screws 205 is slidably connected to a gasket 21, which can increase the contact area and friction between the fixed screw 205 and the L-shaped plate 204. One side of each of the plurality of gaskets 21 is in contact with one side of the corresponding L-shaped plate 204. This contact method can make the gasket 21 play a better role in dispersing pressure and preventing loosening.

[0035] Specifically, when installation is required, the arc-shaped block 203 in the circular groove 202 is slid along the circular groove 202. Since the arc-shaped block 203 is fixedly connected with the L-shaped plate 204, the L-shaped plate 204 will change position along with the movement of the arc-shaped block 203. The operator can flexibly adjust the position of each L-shaped plate 204 according to the different installation positions. After the position of the L-shaped plate 204 is adjusted to a suitable state, the fixing screw 205 on one side of the L-shaped plate 204 is rotated. Along with the rotation of the fixing screw 205, the L-shaped plate 204 is gradually and tightly fixed at the current position, so as to complete the preliminary fixing of the clamping. When the fixing screw 205 is tightened, the gasket 21 can increase the contact area between the fixing screw 205 and the L-shaped plate 204, disperse the pressure, and prevent the fixing screw 205 from causing damage to the L-shaped plate 204 during the tightening process.

[0036] With reference to Figure 1 , Figure 2 and Figure 3 , the front side of the disc 1 is fixedly connected with a switch 14. The switch 14 is convenient for the operator to operate. The switch 14 is electrically connected with the motor 4. The switch 14 can control the start and stop of the motor 4, realize the control of the action of the chuck, the front side of the fixed column 3 is fixedly connected with a fixed plate 15. The fixed plate 15 provides an installation position for a danger sign 16, ensures the stability of the installation of the danger sign 16, the front side of the fixed plate 15 is fixedly connected with the danger sign 16. The danger sign 16 can remind the operator to pay attention to the potential danger during the operation of the chuck, and ensure the safety of operation. One side of each of the plurality of clamping plates 13 is fixedly connected with a pad plate 17. The pad plate 17 can buffer the pressure of the clamping plate 13 on the workpiece, and reduce the damage to the workpiece. One side of each of the plurality of pad plates 17 is fixedly connected with a plurality of rubber pads 18 at equal intervals. The rubber pad 18 can increase the friction force with the workpiece, make the clamping more stable, and further protect the surface of the workpiece. The inside of each of the plurality of grooves 7 is provided with a sliding groove 19. The sliding groove 19 provides a sliding path for the sliding block 20, and ensures the accuracy of the moving direction of the moving block 10. The two sides of each of the plurality of moving blocks 10 are fixedly connected with a sliding block 20. The sliding block 20 is matched with the sliding groove 19, and can make the moving block 10 slide smoothly in the groove 7. Each of the plurality of sliding blocks 20 is slidably connected with the inside of the corresponding sliding groove 19. This connection mode can ensure that the moving block 10 moves along the predetermined direction when the threaded rod 8 rotates, improve the precision and reliability of the chuck;

[0037] Specific, the operator by operating the switch 14, can easily let the motor 4 start running or stop working, the danger mark 16 can remind the operator that the chuck in the running process there is a certain danger, in clamping workpiece, rubber pad 18 soft texture, can avoid clamping plate 13 directly with the workpiece surface hard contact and cause workpiece surface scratch or damage, at the same time, the rubber pad 18 and workpiece surface contact, can increase the friction, make the chuck clamping workpiece more stable, when the threaded rod 8 rotation drive moving block 10 moves, the slider 20 in the sliding slot 19 sliding, for the movement of moving block 10 provides the guide role, ensure that the moving block 10 can move along the accurate direction, avoid its in the process of moving offset.

[0038] Working principle: in the use of precise adjustment workpiece position chuck, start the motor 4, the output end of the motor 4 rotation drive rotating rod 5 rotation, rotating rod 5 bottom end fixed connection drive bevel gear 6 along with rotation, drive bevel gear 6 rotation will drive a plurality of driven bevel gear 9 rotation, in turn make a plurality of threaded rod 8 synchronous rotation, threaded rod 8 rotation, with its screw connection moving block 10 will along the axial direction of threaded rod 8 moves, moving block 10 bottom fixed connection column 11 will along with moving block 10 moves, rotating block 12 also will move accordingly, because rotating block 12 one side fixed connection clamping plate 13, so a plurality of clamping plate 13 can gradually close to or away from the center in the moving process, clamping plate 13 can according to the contour shape of irregular workpiece, with different position and angle to workpiece, realize the stable clamping of irregular workpiece;

[0039] And when need to install, make the arc block 203 in the circular groove 202 along the circular groove 202 slide, because the arc block 203 and the L-shaped plate 204 are fixedly connected, the L-shaped plate 204 will change position along with the movement of the arc block 203, the operator can flexibly adjust the position of each L-shaped plate 204 according to the different installation positions, after the position of the L-shaped plate 204 is adjusted to the appropriate state, the fixing operation is carried out, at this time, the fixing bolt 205 on one side of the L-shaped plate 204 is rotated, along with the rotation of the fixing bolt 205, the L-shaped plate 204 is tightly fixed in the current position by gradually tightening, so that the preliminary fixing of the grabbing is completed.

[0040] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and not for limiting the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A chuck for accurate positioning of a workpiece comprising a puck (1) characterised in that: The top of the disc (1) is fixedly connected with a fixed column (3), the top of the fixed column (3) is fixedly connected with a motor (4), the output end of the motor (4) penetrates through the fixed column (3) and is fixedly connected with a rotating rod (5), the bottom end of the rotating rod (5) is fixedly connected with a driving bevel gear (6), a plurality of recesses (7) are equidistantly formed in the bottom of the fixed column (3), a plurality of threaded rods (8) are rotatably connected inside the plurality of recesses (7), a plurality of driven bevel gears (9) are fixedly connected to the adjacent one end of the plurality of threaded rods (8), a plurality of driven bevel gears (9) are respectively meshingly connected with one side of the corresponding driving bevel gear (6), a plurality of moving blocks (10) are threadedly connected to the outer wall of the plurality of threaded rods (8), a plurality of vertical columns (11) are fixedly connected to the bottom of the plurality of moving blocks (10), a plurality of rotating blocks (12) are rotatably connected to the bottom of the plurality of vertical columns (11), a plurality of clamping plates (13) are fixedly connected to one side of the plurality of rotating blocks (12), and a mounting mechanism (2) is arranged on the top of the fixed column (3).

2. The collet chuck of claim 1, wherein: The mounting mechanism (2) comprises a support (201), the bottom of the support (201) is fixedly connected around the top of the fixed column (3), a circular groove (202) is formed in the top of the support (201), a plurality of arc-shaped blocks (203) are slidably connected inside the circular groove (202), a plurality of L-shaped plates (204) are fixedly connected to the top of the plurality of arc-shaped blocks (203), and a plurality of fixed bolts (205) are rotatably connected to one side of the plurality of L-shaped plates (204).

3. The collet chuck of claim 1 wherein: The front side of the disc (1) is fixedly connected with a switch (14), and the switch (14) is electrically connected with the motor (4).

4. The collet chuck of claim 1 wherein: The front side of the fixed column (3) is fixedly connected with a fixed plate (15), and the front side of the fixed plate (15) is fixedly connected with a danger sign (16).

5. The collet chuck of claim 1 wherein: One side of the plurality of clamping plates (13) is fixedly connected with a backing plate (17), and a plurality of rubber pads (18) are equidistantly fixedly connected to one side of the plurality of backing plates (17).

6. The collet chuck of claim 1 wherein: The inside of the plurality of recesses (7) is provided with a sliding groove (19) on both sides, and the two sides of the plurality of moving blocks (10) are fixedly connected with a sliding block (20), and the plurality of sliding blocks (20) are respectively slidably connected inside the corresponding sliding grooves (19).

7. The collet chuck of claim 2 wherein: The outer wall of the plurality of fixed bolts (205) is slidably connected with a gasket (21), and one side of the plurality of gaskets (21) is fitted with one side of the corresponding L-shaped plate (204).

8. The collet chuck of claim 1 wherein: The plurality of moving blocks (10) are respectively slidably connected inside the corresponding recesses (7), and the size of the moving block (10) and the recess (7) is matched.

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