A disc-shaped workpiece clamping mechanism

Abstract

The utility model provides a disc -shaped workpiece clamping mechanism, including the bottom disc, still including the annular array setting a plurality of clamping arms on the bottom disc, the rotatory ring of connecting setting between a plurality of clamping arms, clamping arm is used for clamping disc -shaped workpiece, and one end of clamping arm swing setting is in the bottom disc, and the lateral portion of rotatory ring is provided with arc hole no.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing technology, specifically to a disc-shaped workpiece clamping mechanism. Background Technology

[0002] In the field of mechanical manufacturing, the clamping technology of disc-shaped workpieces (such as gears, flanges, bearing races, etc.) directly affects the machining accuracy and efficiency. These workpieces are usually characterized by large diameter, thin thickness, and poor rigidity, which puts special requirements on the clamping mechanism. When machining disc-shaped workpieces, traditional three-jaw chucks are generally used in conjunction with tooling to clamp and fix them.

[0003] However, existing tooling often uses manual clamping when holding disc-shaped workpieces, and the clamping and alignment adjustments are inconvenient, resulting in unstable clamping of disc-shaped workpieces and thus affecting the processing efficiency of disc-shaped workpieces. This solution addresses this technical problem. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a disc-shaped workpiece clamping mechanism. A rotating ring is driven by a motor's gears to rotate on a support plate on a chassis. The support plate then drives several clamping arms to synchronously close and clamp the disc-shaped workpiece. A receiving groove positions the workpiece. By simply placing the disc-shaped workpiece on the support plate, automatic centering and clamping of the workpiece can be achieved. This centering and clamping of the disc-shaped workpiece is convenient, quick, and secure.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a disc-shaped workpiece clamping mechanism, including a chassis, and further including a plurality of clamping arms arranged in a ring array on the chassis, and a rotating ring connected between the plurality of clamping arms. The clamping arms are used to clamp the disc-shaped workpiece, one end of the clamping arm is oscillating on the chassis, the side of the rotating ring is provided with an arc-shaped hole, the side of the clamping arm is provided with a connecting rod, the clamping arm is movably disposed in the arc-shaped hole through the connecting rod, and the chassis is provided with a locking component for fixing the rotating ring.

[0006] The locking assembly includes a positioning plate symmetrically arranged on the top side of the chassis and a locking bolt for locking the rotating ring. The positioning plate has a through arc-shaped hole II, and the locking bolt passes through the arc-shaped hole II and is threaded to the top side of the rotating disc.

[0007] The bottom side of the clamping arm is provided with a receiving groove for accommodating a disc-shaped workpiece, and the edge of the disc-shaped workpiece abuts against a plurality of the receiving grooves.

[0008] A support plate is provided on the top side of the chassis, and several clamping arms are swaying on the support plate.

[0009] An arc-shaped rack is fixedly provided on the top side of the rotating ring, the arc-shaped rack is connected to a gear, and the gear is connected to a motor.

[0010] A connecting rod 2 is provided at the end of the clamping arm, and the clamping arm is swung on the chassis via the connecting rod 2.

[0011] The outer sides of both the first connecting rod and the second connecting rod are fitted with wear-resistant bushings to reduce friction.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) The rotating ring is driven by the gear of the motor to rotate on the support plate of the chassis. The support plate drives several clamping arms to clamp the disc-shaped workpiece synchronously. The disc-shaped workpiece is positioned by the receiving groove. The disc-shaped workpiece can be placed on the support plate at will, and the automatic centering clamping of the disc-shaped workpiece can be realized automatically. The centering clamping of the disc-shaped workpiece is convenient, fast and firm.

[0014] (2) By tightening several locking bolts, the positioning plate is pressed onto the rotating ring, thereby locking the rotating ring and preventing loosening during the processing of the disc-shaped workpiece. The operation of the locking component is simple and quick, and the clamping of the disc-shaped workpiece is more secure and reliable.

[0015] (3) Wear-resistant bushings are fitted on the outer side of connecting rod one and the outer side of connecting rod two to reduce friction. On the one hand, this makes the operation of the clamping mechanism smoother, and on the other hand, it improves the clamping accuracy of the disc workpiece and the applicability of the disc workpiece clamping. Attached Figure Description

[0016] Figure 1 This is an exploded view of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure between the positioning pressure plate and the rotating ring of this utility model;

[0018] Figure 3 This is a schematic diagram of the clamping arm of this utility model;

[0019] Figure 4 This is a schematic diagram of the positioning pressure plate of this utility model;

[0020] Figure 5 This is a schematic diagram of the usage process of this utility model. Figure 1 ;

[0021] Figure 6 This is a schematic diagram of the usage process of this utility model. Figure 2 .

[0022] In the figure: 1. Chassis; 2. Clamping arm; 21. Receiving groove; 22. Connecting rod 2; 3. Rotating ring; 31. Arc-shaped hole 1; 32. Connecting rod 1; 4. Locking assembly; 41. Positioning pressure plate; 411. Arc-shaped hole 2; 42. Locking bolt; 5. Bearing plate; 6. Arc-shaped rack; 7. Wear-resistant bushing; 8. Disc-shaped workpiece. Detailed Implementation

[0023] To more clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0024] See Figures 1-6 A disc-shaped workpiece 8 clamping mechanism includes a base 1, and a plurality of clamping arms 2 arranged in a ring array on the base 1, and a rotating ring 3 connected between the plurality of clamping arms 2. The clamping arms 2 are used to clamp the disc-shaped workpiece 8. One end of the clamping arm 2 is oscillating on the base 1. The side of the rotating ring 3 is provided with an arc-shaped hole 31. The side of the clamping arm 2 is provided with a connecting rod 32. The clamping arm 2 is movably disposed in the arc-shaped hole 31 through the connecting rod 32. The base 1 is provided with a locking assembly 4 for fixing the rotating ring 3.

[0025] The locking assembly 4 includes a positioning pressure plate 41 symmetrically arranged on the top side of the chassis 1 and a locking bolt 42 for locking the rotating ring 3. The positioning pressure plate 41 has a through arc-shaped hole 411, and the locking bolt 42 passes through the arc-shaped hole 411 and is threaded to the top side of the rotating disk.

[0026] The bottom side of the clamping arm 2 is provided with a receiving groove 21 for accommodating the disc-shaped workpiece 8, and the edge of the disc-shaped workpiece 8 abuts against the several receiving grooves 21.

[0027] A bearing plate 5 is provided on the top side of the chassis 1, and several clamping arms 2 are swaying on the bearing plate 5.

[0028] An arc-shaped rack 6 is fixedly provided on the top side of the rotating ring 3. The arc-shaped rack 6 is connected to a gear, and the gear is connected to a motor (wherein the motor and gear are implemented using existing technology, so the motor and gear are not shown in the attached drawings).

[0029] The end of the clamping arm 2 is provided with a connecting rod 22, and the clamping arm 2 is swayed on the chassis 1 via the connecting rod 22.

[0030] Wear-resistant bushings 7 for reducing friction are fitted on the outer side of both the first connecting rod 32 and the second connecting rod 22.

[0031] The specific working process of this utility model:

[0032] In use, the chassis 1 is first fixed to the base with bolts, and then the disc-shaped workpiece 8 is placed on the support plate 5. The motor is then started, and the motor drives the rack to rotate via gears. The rack drives the rotating ring 3 to rotate within the chassis 1. At this time, because one end of the clamping arm 2 is hinged to the chassis 1, the other end of the clamping arm 2 slides within the arc-shaped hole 31, causing several clamping arms 2 to synchronously swing together on the support plate 5. Meanwhile, the locking bolt 42 slides within the arc-shaped hole 411. The receiving grooves 21 of several clamping arms 2 are close to the edge of the disc-shaped workpiece 8. Through the contact between the bottom of the receiving grooves 21 and the disc-shaped workpiece 8, the disc-shaped workpiece 8 is clamped. Automatic centering and clamping are performed. When all the receiving slots 21 in the clamping arms 2 have clamped the disc-shaped workpiece 8, the motor stops running. Then, the two locking bolts 42 are tightened, so that the locking bolts 42 press and lock the rotating ring 3 through the positioning pressure plate 41, preventing the rotating ring 3 from rotating. At this time, the disc-shaped workpiece 8 can be processed by grooving, scratching or welding. After the disc-shaped workpiece 8 is processed, the locking bolts 42 are loosened and the motor is started in reverse, so that the rotating ring 3 drives the clamping arms 2 to release the disc-shaped workpiece 8. Finally, the processed disc-shaped workpiece 8 is removed, and the clamping and processing of the next disc-shaped workpiece 8 is carried out.

[0033] The rotating ring 3 is driven by the gear of the motor to rotate on the support plate 5 of the chassis 1. The support plate 5 drives several clamping arms 2 to synchronously close and clamp the disc-shaped workpiece 8. The disc-shaped workpiece 8 is positioned by the receiving groove 21. The disc-shaped workpiece 8 can be placed on the support plate 5 at will, and the automatic centering and clamping of the disc-shaped workpiece 8 can be automatically realized. The centering and clamping of the disc-shaped workpiece 8 is convenient, fast and firm and reliable.

[0034] By tightening several locking bolts 42, the positioning plate 41 is pressed onto the rotating ring 3, thereby locking the rotating ring 3 and preventing loosening of the disc-shaped workpiece 8 during processing. The locking component 4 is simple and quick to operate, and the clamping of the disc-shaped workpiece 8 is more secure and reliable.

[0035] Wear-resistant bushings 7 are fitted on the outer sides of connecting rod 1 32 and connecting rod 22 to reduce friction. This makes the clamping mechanism run more smoothly and improves the clamping accuracy of the disc workpiece 8, thus enhancing the applicability of clamping the disc workpiece 8.

[0036] The technical features of this utility model not described can be implemented by or by using existing technology, and will not be repeated here. Of course, the above description is not a limitation of this utility model, and this utility model is not limited to the examples above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model should also be within the protection scope of this utility model.

Claims

1. A disc-shaped workpiece clamping mechanism, comprising a base (1), characterized in that, It also includes a plurality of clamping arms (2) arranged in a ring array on the chassis (1) and a rotating ring (3) connected between the plurality of clamping arms (2). The clamping arms (2) are used to clamp disc-shaped workpieces (8). One end of the clamping arm (2) is swayed on the chassis (1). The side of the rotating ring (3) is provided with an arc-shaped hole (31). The side of the clamping arm (2) is provided with a connecting rod (32). The clamping arm (2) is movably disposed in the arc-shaped hole (31) through the connecting rod (32). The chassis (1) is provided with a locking assembly (4) for fixing the rotating ring (3).

2. The disc-shaped workpiece clamping mechanism according to claim 1, characterized in that, The locking assembly (4) includes a positioning plate (41) symmetrically arranged on the top side of the chassis (1) and a locking bolt (42) for locking the rotating ring (3). The positioning plate (41) has a through arc-shaped hole (411), and the locking bolt (42) passes through the arc-shaped hole (411) and is threaded to the top side of the rotating disk.

3. The disc-shaped workpiece clamping mechanism according to claim 2, characterized in that, The bottom side of the clamping arm (2) is provided with a receiving groove (21) for accommodating a disc-shaped workpiece (8), and the edge of the disc-shaped workpiece (8) abuts against the contents of a plurality of the receiving grooves (21).

4. The disc-shaped workpiece clamping mechanism according to claim 3, characterized in that, The top side of the chassis (1) is provided with a bearing plate (5), and a plurality of clamping arms (2) are swayed on the bearing plate (5).

5. The disc-shaped workpiece clamping mechanism according to claim 4, characterized in that, An arc-shaped rack (6) is fixedly provided on the top side of the rotating ring (3), and the arc-shaped rack (6) is connected to a gear, which is connected to a motor.

6. The disc-shaped workpiece clamping mechanism according to claim 1, characterized in that, The end of the clamping arm (2) is provided with a connecting rod two (22), and the clamping arm (2) is swayed on the chassis (1) by the connecting rod two (22).

7. The disc-shaped workpiece clamping mechanism according to claim 6, characterized in that, Wear-resistant bushings (7) for reducing friction are fitted on the outer side of both the first connecting rod (32) and the second connecting rod (22).

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