Special clamp for disc parts

Abstract

The utility model provides a special clamp for disc parts, which relates to the technical field of clamps and comprises a support and a support plate, a plurality of hydraulic lifting rods are arranged between the support and the support plate, and the distance between the support plate and the support is changed through the hydraulic lifting rods. A cross-shaped groove is formed in the supporting plate and provided with four channels, the ends of the channels extend to the edge of the supporting plate, clamping blocks are arranged in the channels respectively, a check block is arranged on the side, facing the center of the cross-shaped groove, of the top end of each clamping block so that a workpiece can be clamped in a space formed by the clamping blocks, the check blocks and the supporting plate, and the bottom end of each clamping block is connected with a lead screw. The lead screws are arranged along the channels so that the clamping blocks can be driven by the lead screws to move along the channels, the four clamping blocks used for clamping workpieces are driven by the same driving bevel gear, and the workpieces can be conveniently positioned; the requirements for disc type workpieces with different heights and diameters can be met, and the application range is wide; and the peripheral side of the disc type workpiece can be clamped through the check blocks, and the device is suitable for various machining schemes.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, and more specifically, to a special clamping fixture for disc-shaped parts. Background Technology

[0002] For disc-shaped parts such as flanges, it is necessary to machine their inner and outer circles as well as the holes on the disc surface. Generally, a special disc-shaped workpiece fixture is used to fix the workpiece. At present, most flange parts are directly clamped by chuck. When machining parts, it is necessary to change the clamping tool when dealing with different models of annular disc parts. The tooling change operation is cumbersome, the installation time is long, and the unloading is inconvenient, resulting in low production efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a special fixture for disc-shaped parts, which is applicable to disc-shaped parts of different specifications, in order to address the problems in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] This utility model provides a special clamp for disc-shaped parts, comprising: a bracket and a support plate; a plurality of hydraulic lifting rods are arranged between the bracket and the support plate to change the distance between the support plate and the bracket; a cross groove is formed on the support plate, the cross groove having four channels, the ends of the channels extending to the edge of the support plate, and a locking block is arranged in each channel; a stop block is arranged on the top of the locking block facing the center of the cross groove to clamp the workpiece in the space formed by the locking block, the stop block and the support plate; the bottom end of the locking block is connected to a lead screw, the axis of the lead screw is arranged along the extension direction of the channel to drive the locking block to move along the channel.

[0006] Optionally, the adjacent ends of the four lead screws corresponding to the four channels are respectively connected to driven bevel gears. The four driven bevel gears mesh with the driving bevel gears respectively. The driving bevel gears drive the four driven bevel gears to rotate synchronously, so that the four lead screws drive the four clamping blocks to move toward one side closer to or further away from each other, thereby clamping or releasing the workpiece.

[0007] Optionally, the driven bevel gear and the first gear are coaxially arranged, the driving bevel gear is mounted on a rotating shaft, and one end of the rotating shaft passes through the bracket and extends to the bottom of the bracket where a driving part is provided.

[0008] Optionally, the drive unit has a handle, which is mounted on the rotating shaft, and the center line of the handle is perpendicular to the center line of the rotating shaft.

[0009] Optionally, the drive unit has a first gear mounted on the rotating shaft, and a second gear meshes with the outer periphery of the first gear, the second gear being driven by a motor.

[0010] Optionally, the bottom end of the clamping block is provided with a sliding groove, which is located below the lead screw, and the top of the bracket is provided with a sliding rod in the same direction as the channel. The sliding rod passes through the sliding groove to limit the clamping block.

[0011] Optionally, the angle between the stop block and the locking block is a right angle.

[0012] Optionally, the locking block and the stop block are each provided with a rubber layer on the side facing the center of the cross groove.

[0013] Optionally, the number of hydraulic lifting rods is four, with each hydraulic lifting rod disposed between two adjacent channels.

[0014] The beneficial effects of this utility model include: This utility model provides a special clamp for disc-shaped parts, including a bracket and a support plate. Several hydraulic lifting rods are arranged between the bracket and the support plate to change the distance between them. A cross groove is formed on the support plate, with four channels extending to the edge of the support plate. Each channel has a locking block, and the top of the locking block facing the center of the cross groove has a stop block to clamp the workpiece within the space formed by the locking block, stop block, and support plate. The bottom of the locking block is connected to a lead screw, whose axis extends along the channel's extension direction, driving the locking block to move along the channel. 1. The four locking blocks used to clamp the workpiece are driven by the same active bevel gear, with the center of the workpiece at the center of the bevel gear, facilitating workpiece positioning. 2. This utility model can accommodate disc-shaped workpieces of different heights and diameters, offering a wide range of applications. 3. This utility model can clamp the periphery of the disc-shaped workpiece using the stop blocks, meeting the requirements for processing the top of the disc-shaped workpiece, and is suitable for various processing schemes. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is one of the structural schematic diagrams of a special fixture for disc-shaped parts provided in an embodiment of this application;

[0017] Figure 2 A second schematic diagram of the structure of a special fixture for disc-shaped parts provided in an embodiment of this application;

[0018] Figure 3 A third schematic diagram of the structure of a special fixture for disc-shaped parts provided in this application embodiment;

[0019] Figure 4 This is the fourth schematic diagram of a special fixture for disc-shaped parts provided in an embodiment of this application.

[0020] Icons: 10. Bracket; 11. Slide rod; 20. Support plate; 21. Channel; 30. Locking block; 31. Rubber layer; 32. Slide groove; 33. Stop block; 40. Lead screw; 50. Hydraulic lifting rod; 60. Driving bevel gear; 61. Driven bevel gear; 70. Motor; 71. First gear; 72. Second gear; 80. Workpiece. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of this application. It should be noted that, without conflict, the various features in the embodiments of this application can be combined with each other, and the combined embodiments are still within the protection scope of this application.

[0022] Currently, most flange parts are processed using direct chuck clamping. When processing different types of annular disc parts, it is necessary to change the clamping tool. The tooling change operation is cumbersome, the installation time is long, and the unloading is inconvenient, resulting in low production efficiency. To solve the above problems, this application provides a special fixture for disc parts, which is suitable for various disc parts of different heights and diameters, and improves processing efficiency.

[0023] like Figure 1 As shown, Embodiment 1 of this application provides a special fixture for disc-shaped parts, including: a bracket 10 and a support plate 20, wherein a plurality of hydraulic lifting rods 50 are arranged between the bracket 10 and the support plate 20 to change the distance between the support plate 20 and the bracket 10 by means of the hydraulic lifting rods 50; as Figure 2As shown, a cross groove is provided on the support plate 20. The cross groove has four channels 21. The ends of the channels 21 extend to the edge of the support plate 20. Each channel 21 is provided with a locking block 30. The top of the locking block 30 is provided with a stop block 33 on the side facing the center of the cross groove, so as to clamp the workpiece 80 in the space formed by the locking block 30, the stop block 33 and the support plate 20. The bottom end of the locking block 30 is connected to a lead screw 40. The axis of the lead screw 40 is set along the extension direction of the channel 21 so as to drive the locking block 30 to move along the channel 21.

[0024] Specifically, the adjacent ends of the four lead screws 40 corresponding to the four channels 21 are respectively connected to driven bevel gears 61. The four driven bevel gears 61 mesh with the driving bevel gears 60 respectively. The driving bevel gears 60 drive the four driven bevel gears 61 to rotate synchronously, so that the four lead screws 40 drive the four clamping blocks 30 to move toward the side that is closer to or farther away from each other, thereby clamping or releasing the workpiece 80. The driving bevel gears 60 are located below the four driven bevel gears 61.

[0025] Specifically, the active bevel gear 60 is mounted on the rotating shaft, one end of which passes through the bracket 10 and extends to the bottom of the bracket 10 where a drive unit is located.

[0026] In one embodiment of this application, the drive unit has a handle, which is mounted on a rotating shaft, and the center line of the handle is perpendicular to the center line of the rotating shaft, so as to clamp or release the workpiece 80 by rotating the handle.

[0027] In another embodiment of this application, the drive unit has a first gear 71, which is mounted on a rotating shaft. A second gear 72 meshes with the outer periphery of the first gear 71, and the second gear 72 is driven by a motor 70.

[0028] Specifically, the bottom of the clamping block 30 is provided with a sliding groove 32, which is located below the lead screw 40. The top of the bracket 10 is provided with a sliding rod 11 in the same direction as the channel 21. The sliding rod 11 passes through the sliding groove 32 to limit the clamping block 30.

[0029] Specifically, the angle between the stop block 33 and the locking block 30 is a right angle.

[0030] Specifically, the locking block 30 and the stop block 33 are respectively provided with a rubber layer 31 on the side facing the center of the cross groove.

[0031] Specifically, there are four hydraulic lifting rods 50, with each hydraulic lifting rod 50 installed between two adjacent channels 21.

[0032] The special fixture for disc-shaped parts provided in this application embodiment, when installing the fixture, such as Figure 3As shown, the workpiece 80 is placed on the support plate 20, the motor 70 is started, and the clamping block 30 moves relative to the workpiece 80 until the workpiece 80 is clamped. Since the four driven bevel gears 61 are driven by the same driving bevel gear 60, the center of the workpiece 80 can be aligned with the center of the driving bevel gear 60, which facilitates the positioning of the workpiece 80. After the clamping block 30 clamps the workpiece 80, the four hydraulic lifting rods 50 are driven to raise the support plate 20 relative to the bracket 10, thus clamping and fixing the workpiece 80 between the stop block 33 and the support plate 20 in the vertical direction; in another embodiment, as Figure 4 As shown, when processing the upper end face of workpiece 80, the baffle 33 clamps the workpiece 80 on the side facing the workpiece 80, which facilitates the processing of the upper end face of workpiece 80. When clamping the workpiece 80, the clamping block 30 or the baffle 33 is prevented from damaging the workpiece 80. The clamping block 30 and the baffle 33 are respectively provided with rubber layers 31 on the side facing the center of the cross groove.

[0033] In summary, the four clamping blocks of this utility model for holding workpieces are driven by the same active bevel gear, with the center of workpiece 80 as the center of the active bevel gear 60, which facilitates the positioning of workpiece 80; at the same time, it is suitable for clamping disc-shaped workpieces 80 of different heights and diameters, with a wide range of applications; and by clamping the periphery of the disc-shaped workpiece 80 with the stop blocks, it can meet the requirements for processing the upper end surface of the disc-shaped workpiece 80, and is suitable for various processing schemes.

[0034] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A special fixture for disc-shaped parts, characterized in that, include: A bracket (10) and a support plate (20) are provided, and a plurality of hydraulic lifting rods (50) are provided between the bracket (10) and the support plate (20) to change the distance between the support plate (20) and the bracket (10) by means of the hydraulic lifting rods (50); The support plate (20) has a cross groove with four channels (21). The ends of the channels (21) extend to the edge of the support plate (20). Each channel (21) has a locking block (30). The top of the locking block (30) is provided with a stop block (33) facing the center of the cross groove, so as to clamp the workpiece (80) in the space formed by the locking block (30), the stop block (33) and the support plate (20). The bottom end of the locking block (30) is connected to a lead screw (40). The axis of the lead screw (40) is set along the extension direction of the channel (21) so as to drive the locking block (30) to move along the channel (21) through the lead screw (40).

2. The special fixture for disc-shaped parts according to claim 1, characterized in that, The adjacent ends of the four lead screws (40) corresponding to the four channels (21) are respectively connected to driven bevel gears (61). The four driven bevel gears (61) mesh with the driving bevel gears (60) respectively. The driving bevel gears (60) drive the four driven bevel gears (61) to rotate synchronously, so that the four lead screws (40) drive the four clamping blocks (30) to move toward the side that is closer to or further away from each other, thereby clamping or releasing the workpiece (80).

3. The special fixture for disc-shaped parts according to claim 2, characterized in that, The active bevel gear (60) is mounted on a rotating shaft, one end of which passes through the bracket (10) and extends to the bottom of the bracket (10) where a drive unit is provided.

4. The special fixture for disc-shaped parts according to claim 3, characterized in that, The drive unit has a handle, which is mounted on the rotating shaft, and the center line of the handle is perpendicular to the center line of the rotating shaft.

5. The special fixture for disc-shaped parts according to claim 3, characterized in that, The drive unit has a first gear (71) mounted on the rotating shaft, and a second gear (72) meshes with the outer periphery of the first gear (71). The second gear (72) is driven by a motor (70).

6. The special fixture for disc-shaped parts according to claim 1, characterized in that, The bottom end of the locking block (30) is provided with a sliding groove (32), which is located below the lead screw (40). The top of the bracket (10) is provided with a sliding rod (11) in the same direction as the channel (21). The sliding rod (11) passes through the sliding groove (32) to limit the locking block (30).

7. The special fixture for disc-shaped parts according to claim 1, characterized in that, The angle between the stop (33) and the locking block (30) is a right angle.

8. The special fixture for disc-shaped parts according to claim 1, characterized in that, The locking block (30) and the stop block (33) are respectively provided with a rubber layer (31) on the side facing the center of the cross groove.

9. The special fixture for disc-shaped parts according to claim 1, characterized in that, The number of hydraulic lifting rods (50) is four, and each hydraulic lifting rod (50) is respectively arranged between two adjacent channels (21).

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