Workpiece machine tool clamp with turnover structure

Abstract

The utility model relates to the technical field of machine tool clamps, and discloses a workpiece machine tool clamp with an overturning structure, which comprises a support and a frame, the tops of the two sides of the support are respectively and rotatably connected with the middle parts of the two sides of the frame through support shafts, a motor I is fixedly mounted on one side of the support, an output shaft of the motor I is connected with a worm, and the worm is connected with the overturning structure. The worm is in meshed connection with a worm gear, the middle of the worm gear is connected with one end of one supporting shaft, the frame is in sliding connection with two clamping plates, and the number of the clamping plates is two. The workpiece centering device has the advantages that a workpiece is placed between the two clamping plates, the bearing assembly can bear the workpiece, the centering adjusting assembly can drive the two clamping plates to move oppositely, the clamping plates can move in the middle, the workpieces of different sizes can be clamped through the V-shaped grooves, the centering state of the workpiece is guaranteed, the bearing assembly is driven by the second motor, and the workpiece centering device is convenient to operate. The workpiece can be folded and prevented from protruding out of the workpiece.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool fixtures, in particular to a workpiece machine tool fixture with a flip structure. Background Art

[0002] A machine tool fixture is a device used to clamp workpieces (and guide tools) on machine tools. Its function is to position the workpiece so that it obtains the correct position relative to the machine tool and the tool, and to clamp the workpiece reliably. It is divided into general fixtures and special fixtures. General fixtures refer to fixtures that have been standardized and can be used to process different workpieces within a certain range. Special fixtures refer to fixtures specially designed for a certain process of a certain workpiece.

[0003] Its application number is "CN202021760652.2". The disclosed "a CNC machine tool fixture flipping mechanism" "includes: a frame, which is C-shaped; a support frame, which is located above the frame, and support columns are fixedly arranged on both sides of the support frame, and the other end of the support column is rotatably connected to the frame; a flipping structure, which is located at the bottom of the support frame, and the flipping structure includes a first pulley, a double-axis asynchronous motor, a rotating shaft and a second pulley, a double-axis asynchronous motor is fixedly arranged above the frame, and a rotating shaft is fixedly arranged at the output end of the double-axis asynchronous motor, and the other end of the rotating shaft passes through the frame and extends to the outside of the frame, and the end of the support column and the through end of the rotating shaft are respectively fixedly sleeved with the first pulley and the second pulley, and the first pulley and the second pulley are connected by belt drive; a fixed structure, which is located above the support frame, and the fixed structure includes a screw rod, a slider, a first fixed block and a second fixed block. In the utility model, support columns are fixedly provided on both sides of the support frame, and the support columns are rotatably connected to the frame, so that the support frame can be flipped. A screw rod is rotatably provided above the support frame through a screw rod seat, and a slider is connected to the outer peripheral thread sleeve of the screw rod. A first fixed block is fixedly provided on one side of the support frame, and a second fixed block is fixedly provided above the slider. The slider can be driven to translate by rotating the screw rod driven by a rotating motor.

[0004] However, the above method still has the following defects: the support frame can be driven to flip by the belt, but the support frame will be located at the top of the workpiece. After the workpiece is flipped, the surface of the workpiece will be blocked, which is not convenient for the processing of the workpiece. The first fixed block and the second fixed block can fix the two sides of the workpiece, but the position of the first fixed block is not adjusted, and it is difficult to ensure the centering state of the workpiece. In addition, the belt is tough and it is difficult to lock the bracket, which can easily cause the bracket and the workpiece to shake, which will reduce the stability of the workpiece during processing. Utility Model Content

[0005] The utility model aims to provide a workpiece machine tool fixture with a flipping structure to solve the problem in the background technology that after the workpiece is flipped, the surface of the workpiece will be blocked, which is inconvenient for the processing of the workpiece and it is difficult to ensure that the workpiece is in a centered state.

[0006] The utility model provides the following technical solution: a workpiece machine tool fixture with a flipping structure, comprising a support and a frame, the tops on both sides of the support are rotatably connected to the middle parts of both sides of the frame through supporting shafts, one side of the support is fixedly installed with a motor 1, the output shaft of the motor 1 is connected with a worm, the worm is meshingly connected with a worm wheel, the middle part of the worm wheel is connected with one end of one of the supporting shafts, the frame is slidably connected with a splint, two splints are provided, and the splint is driven by a centering adjustment component to slide inside the frame, a V-shaped groove is provided on one side of the splint, the surface of the V-shaped groove is provided with an anti-slip rubber pad, the bottom end of the splint is rotatably connected with a supporting component, the top of the splint is installed with a motor 2, and the output shaft of the motor 2 is connected to the supporting component.

[0007] As a preferred technical solution of the utility model, a protective box is provided for primary fixing of the support, the worm is rotatably connected to the inside of the protective box, and a box cover is provided on one side of the protective box.

[0008] As a preferred technical solution of the utility model, a sliding groove is provided on the inner wall of the frame, a sliding block is fixedly provided on one side of the clamping plate, and the sliding block is slidably connected to the sliding groove.

[0009] As a preferred technical solution of the utility model, the centering adjustment component includes a baffle cover, motor three and a bidirectional screw rod. The baffle cover is fixedly connected to one side of the frame, motor three is fixedly installed on one side of the baffle cover, the output shaft of motor three is connected to the bidirectional screw rod, and threaded sleeves are threadedly connected on both sides of the bidirectional screw rod, and the threaded sleeves are connected to the splint through a synchronization rod.

[0010] As a preferred technical solution of the utility model, the two ends of the synchronization rod are respectively welded to the threaded sleeve and the clamping plate, and a rod groove is opened on one side of the frame, and the synchronization rod is slidably connected to the rod groove.

[0011] As a preferred technical solution of the utility model, a flap is hinged on the top of the baffle, a guide rail is fixed on the inner wall of one side of the baffle, a guide block is welded on one side of the threaded sleeve, and the guide block is slidably connected to the guide rail.

[0012] As a preferred technical solution of the utility model, the supporting assembly includes a vertical shaft and a support plate, the vertical shaft is rotatably connected to the bottom end of the clamping plate through a bearing, a rib plate is welded to the bottom of the vertical shaft, the bottom end of the vertical shaft and the bottom end of the rib plate are both welded to one side of the top end of the support plate, and an end plate is fixedly provided on one side of the support plate.

[0013] As a preferred technical solution of the utility model, a hanging plate is welded to the bottom end of the clamping plate, and the supporting plate is slidably connected to the hanging plate.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The workpiece machine tool fixture with a flipping structure can support the workpiece to prevent it from falling by placing the workpiece between two clamping plates. The two clamping plates can be driven to move towards each other through the centering adjustment component. The clamping plates can be displaced in the center and can clamp workpieces of different sizes through the V-shaped groove, ensuring the centering state of the workpiece. The supporting component can be driven by motor 2 to fold it to prevent it from protruding from the workpiece. The worm can be driven by motor 1 to drive the frame to rotate through the worm wheel, so as to flip the workpiece, and the supporting component can be prevented from blocking the surface of the workpiece, which is convenient for processing activities after the workpiece is flipped.

[0016] 2. The workpiece machine tool fixture with a flip structure can increase the fit and friction between the workpiece and the clamping plate through the anti-slip rubber pad, so the workpiece is not easy to loosen and fall off. The angular friction between the worm and the worm wheel can achieve self-locking of the support shaft. When processing the workpiece, it can prevent the frame and the workpiece from shaking, thereby improving the stability of the workpiece during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the structural diagrams of the utility model;

[0018] Figure 2 This is the second structural diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the explosion structure of the utility model;

[0020] Figure 4 This is a structural schematic diagram of the centering adjustment component of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the splint of the utility model.

[0022] In the figure: 1. support; 2. frame; 3. support shaft; 4. worm gear; 5. protective box; 6. worm; 7. motor one; 8. box cover; 9. splint; 10. V-shaped groove; 11. anti-skid rubber pad; 12. motor two; 13. supporting assembly; 1301. vertical shaft; 1302. support plate; 1303. rib plate; 1304. end plate; 14. hanging plate; 15. slider; 16. slide groove; 17. rod groove; 18. centering adjustment assembly; 1801. baffle; 1802. motor three; 1803. bidirectional screw; 1804. threaded sleeve; 1805. synchronization rod; 1806. guide block; 1807. guide rail; 1808. flip cover. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1:

[0025] Please refer to Figure 5. The utility model provides a workpiece machine tool fixture with a flip structure, including a support 1 and a frame 2. The tops of both sides of the support 1 are rotatably connected to the middle parts of both sides of the frame 2 through support shafts 3. A motor 7 is fixedly installed on one side of the support 1. The output shaft of the motor 7 is connected to a worm 6. The worm 6 is meshingly connected to a worm wheel 4. The middle part of the worm wheel 4 is connected to one end of one of the support shafts 3. The frame 2 is slidably connected to a clamp 9. Two clamps 9 are provided, and the clamps 9 are driven by a centering adjustment component 18 to slide inside the frame 2. A V-shaped groove 10 is provided on one side of the clamping plate 9, and a non-slip rubber pad 11 is provided on the surface of the V-shaped groove 10. The two clamping plates 9 can be driven to move in opposite directions through the centering adjustment component 18. The clamping plate 9 can be displaced in the center, and can clamp workpieces of different sizes through the V-shaped groove 10, ensuring the centering state of the workpiece. The non-slip rubber pad 11 can increase the fit and friction between the workpiece and the clamping plate 9, and is not easy to loosen and fall off. The bottom end of the clamping plate 9 is rotatably connected to a supporting component 13, and a motor 2 12 is installed on the top of the clamping plate 9, and the output shaft of the motor 2 12 is connected to the supporting component 13;

[0026] A protection box 5 is fixedly provided at the primary end of the support 1, and the worm 6 is rotatably connected to the inside of the protection box 5. A box cover 8 is provided on one side of the protection box 5. The protection box 5 can support the worm 6 and provide protection for the worm 6 and the worm wheel 4. By opening the box cover 8, the inside of the protection box 5 can be repaired and maintained;

[0027] A slide groove 16 is provided on the inner wall of the frame 2, and a slider 15 is fixedly provided on one side of the clamping plate 9. The slider 15 is slidably connected to the slide groove 16. The slide groove 16 and the slider 15 can guide the clamping plate 9 to ensure linear motion of the clamping plate 9.

[0028] Embodiment 2:

[0029] The centering adjustment component 18 includes a shield 1801, a motor 3 1802 and a bidirectional screw 1803. The shield 1801 is fixedly connected to one side of the frame 2. The motor 3 1802 is fixedly installed on one side of the shield 1801. The output shaft of the motor 3 1802 is connected to the bidirectional screw 1803. Both sides of the bidirectional screw 1803 are threadedly connected with thread sleeves 1804. The thread sleeve 1804 is connected to the clamping plate 9 through a synchronous rod 1805. The bidirectional screw 1803 is driven by the motor 3 1802. The bidirectional screw 1803 can convert the rotational motion into the linear motion of the synchronous rod 1805 through the thread sleeve 1804. The synchronous rod 1805 can drive the two clamping plates 9 to move in opposite directions.

[0030] The two ends of the synchronization rod 1805 are respectively welded to the threaded sleeve 1804 and the clamping plate 9. A rod groove 17 is provided on one side of the frame 2. The synchronization rod 1805 is slidably connected to the rod groove 17. The rod groove 17 can guide the synchronization rod 1805 to ensure the horizontal displacement of the synchronization rod 1805.

[0031] A flap 1808 is hinged on the top of the baffle cover 1801. The interior of the baffle cover 1801 can be repaired by opening the flap 1808. A guide rail 1807 is fixedly provided on the inner wall of one side of the baffle cover 1801. A guide block 1806 is welded on one side of the threaded sleeve 1804. The guide block 1806 is slidably connected to the guide rail 1807. The guide rail 1807 and the guide block 1806 can guide the threaded sleeve 1804 to prevent the threaded sleeve 1804 from rotating.

[0032] Embodiment 3:

[0033] The supporting assembly 13 includes a vertical shaft 1301 and a support plate 1302. The vertical shaft 1301 is rotatably connected to the bottom end of the clamping plate 9 through a bearing. A rib plate 1303 is welded to the bottom of the vertical shaft 1301. The bottom end of the vertical shaft 1301 and the bottom end of the rib plate 1303 are both welded to one side of the top end of the support plate 1302. An end plate 1304 is fixedly provided on one side of the support plate 1302. The vertical shaft 1301 can support the support plate 1302. The rib plate 1303 can reinforce the space between the vertical shaft 1301 and the support plate 1302. The support plate 1302 can support the workpiece when the workpiece is placed.

[0034] A hanging plate 14 is welded to the bottom end of the clamping plate 9, and the support plate 1302 is slidably connected to the hanging plate 14. The hanging plate 14 can increase the fulcrum of the support plate 1302, thereby improving the deformation resistance of the support plate 1302.

[0035] When in use, the staff first fixes the support 1 on the machine tool, and then places the workpiece between the two clamping plates 9. The support plate 1302 of the supporting assembly 13 can support the workpiece, and the end plate 1304 can increase the support area of ​​the support plate 1302 for the workpiece. Then, the motor 1802 of the centering adjustment assembly 18 drives the bidirectional screw rod 1803, and the bidirectional screw rod 1803 converts the rotational motion into the linear motion of the synchronization rod 1805 through the threaded sleeve 1804. The synchronization rod 1805 can drive the two clamping plates 9 to move in opposite directions. The clamping plates 9 can clamp workpieces of different sizes through the V-shaped groove 10, ensuring the centering state of the workpiece;

[0036] When the clamping plate 9 clamps the workpiece, the anti-skid rubber pad 11 can increase the fit and friction between the workpiece and the clamping plate 9, and the workpiece is not easy to loosen and fall off. The staff drives the vertical shaft 1301 through the motor 2 12, and the vertical shaft 1301 drives the clamping plate 9 to make a circular motion along it, which can be folded to the bottom end of the clamping plate 9 to prevent it from protruding from the workpiece. In this process, the hanging plate 14 can increase the fulcrum of the support plate 1302, thereby improving the anti-deformation ability of the support plate 1302, and then the workpiece can be processed by the machine tool;

[0037] When the workpiece needs to be turned over and its back side processed, the staff drives the worm 6 through the motor 7, and the worm 6 drives the frame 2 to rotate through the worm gear 4, so that the workpiece can be turned over. After turning over, the motor 7 is stopped. The angular friction between the worm 6 and the worm gear 4 can realize the self-locking of the support shaft 3, which improves the stability of the workpiece when processing the back side of the workpiece. The support plate 1302 will not block the workpiece after being folded, and the square plate is operated;

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A workpiece machine tool fixture with a flip structure, comprising a support (1) and a frame (2), characterized in that: The tops of both sides of the support (1) are rotatably connected to the middle parts of both sides of the frame (2) through support shafts (3), and a motor 1 (7) is fixedly installed on one side of the support (1). The output shaft of the motor 1 (7) is connected to a worm (6), and the worm (6) is meshingly connected to a worm wheel (4). The middle part of the worm wheel (4) is connected to one end of one of the support shafts (3). The frame (2) is slidably connected to a splint (9), and two splints (9) are provided. The splint (9) is driven by a centering adjustment component (18) to slide inside the frame (2). A V-shaped groove (10) is provided on one side of the splint (9), and a non-slip rubber pad (11) is provided on the surface of the V-shaped groove (10). The bottom end of the splint (9) is rotatably connected to a supporting component (13), and a motor 2 (12) is installed on the top of the splint (9), and the output shaft of the motor 2 (12) is connected to the supporting component (13).

2. The workpiece machine tool fixture with a flip structure according to claim 1, characterized in that: The support (1) is provided with a protection box (5) for primary fixing, the worm (6) is rotationally connected to the inside of the protection box (5), and a box cover (8) is provided on one side of the protection box (5).

3. The workpiece machine tool fixture with a flip structure according to claim 1, characterized in that: The inner wall of the frame (2) is provided with a sliding groove (16), and a sliding block (15) is fixedly provided on one side of the clamping plate (9), and the sliding block (15) is slidably connected to the sliding groove (16).

4. The workpiece machine tool fixture with a flip structure according to claim 1, characterized in that: The centering adjustment component (18) comprises a baffle (1801), a motor three (1802) and a bidirectional screw (1803); the baffle (1801) is fixedly connected to one side of the frame (2); the motor three (1802) is fixedly mounted on one side of the baffle (1801); the output shaft of the motor three (1802) is connected to the bidirectional screw (1803); both sides of the bidirectional screw (1803) are threadedly connected to threaded sleeves (1804); the threaded sleeves (1804) are connected to the clamping plate (9) via a synchronization rod (1805).

5. The workpiece machine tool fixture with a flip structure according to claim 4, characterized in that: The two ends of the synchronization rod (1805) are respectively welded to the threaded sleeve (1804) and the clamping plate (9); a rod groove (17) is provided on one side of the frame (2); and the synchronization rod (1805) is slidably connected to the rod groove (17).

6. The workpiece machine tool fixture with a flip structure according to claim 4, characterized in that: A flap (1808) is hingedly connected to the top of the blocking cover (1801), a guide rail (1807) is fixedly provided on the inner wall of one side of the blocking cover (1801), a guide block (1806) is welded to one side of the threaded sleeve (1804), and the guide block (1806) is slidably connected to the guide rail (1807).

7. The workpiece machine tool fixture with a flip structure according to claim 1, characterized in that: The supporting assembly (13) comprises a vertical shaft (1301) and a support plate (1302); the vertical shaft (1301) is rotatably connected to the bottom end of the clamping plate (9) via a bearing; a rib plate (1303) is welded to the bottom of the vertical shaft (1301); the bottom end of the vertical shaft (1301) and the bottom end of the rib plate (1303) are both welded to one side of the top end of the support plate (1302); and an end plate (1304) is fixedly provided to one side of the support plate (1302).

8. The workpiece machine tool fixture with a flip structure according to claim 7, characterized in that: A hanging plate (14) is welded to the bottom end of the clamping plate (9), and the supporting plate (1302) is slidably connected to the hanging plate (14).

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