Movable disc machining clamp

Abstract

The utility model discloses a movable disc machining clamp, which belongs to the technical field of movable disc machining and comprises a four-axis rotary table. A bottom plate is fixedly mounted at the movable end of the four-axis rotary table; the bottom plate is provided with a double-station flexible self-centering clamping mechanism which is used for carrying out self-centering clamping on the two orbiting scroll plates and preventing the orbiting scroll plates from generating large deformation; the double-station flexible self-centering clamping mechanism comprises a diaphragm body, a clamping assembly used for clamping and fixing the movable scroll plate and a deformation assembly used for controlling the diaphragm body to deform. The deformation assembly is mounted on the bottom plate; the diaphragm body is installed on the deformation assembly, and the clamping assembly is installed on the diaphragm body. The pressure reducing valve is fixedly installed at the lower end of the bottom plate and connected with the deformation assembly. By means of the mode, the device can continuously adjust the spatial position of the movable scroll plate from multiple angles, and all-directional machining operation on the multiple movable scroll plates is achieved.

Description

Technical Field

[0001] This utility model relates to the field of moving plate machining technology, and specifically to moving plate machining fixtures. Background Technology

[0002] The moving disc is one of the key components in a scroll compressor, forming the core of the compressor together with the stationary disc. The moving disc is an eccentric, rotating, involute type that meshes with the stationary disc to compress the fluid. Due to the meshing characteristics of the scroll, the moving disc requires extremely high machining precision.

[0003] Chinese patent CN216576790U discloses a fixture for machining a moving disk scroll, which includes a worktable. The worktable has a fixing component, which includes a fixing plate and a fixing shaft. The fixing shaft is located in the middle of the fixing plate and is hollow. A downward pressing column is provided inside the fixing shaft. The downward pressing column is narrow at the bottom and wide at the top, and its maximum diameter is larger than the diameter of the fixing shaft. The downward pressing column is slidably connected to the fixing shaft in the vertical direction. The worktable is provided with a driving mechanism for driving the downward pressing column to slide. However, this device still has the following problems in use:

[0004] A rigid connection between the fixed plate and the fixed shaft may result in insufficient clamping accuracy when clamping workpieces, and long-term use may also exacerbate the wear of the chucks.

[0005] Based on this, the present invention designs a moving disk machining fixture to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a moving disk machining fixture.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A moving-disc machining fixture includes a four-axis rotary table, a base plate, a dual-station flexible self-centering clamping mechanism, a moving scroll plate, and a pressure-reducing valve. The base plate is fixedly mounted on the movable end of the four-axis rotary table. The base plate is equipped with a dual-station flexible self-centering clamping mechanism capable of self-centering and clamping two moving scroll plates and preventing large deformations of the moving scroll plates. The dual-station flexible self-centering clamping mechanism includes a diaphragm body, a clamping assembly for clamping and fixing the moving scroll plates, and a deformation assembly for controlling the deformation of the diaphragm body. The deformation assembly is mounted on the base plate; the diaphragm body is mounted on the deformation assembly, and the clamping assembly is mounted on the diaphragm body. The pressure-reducing valve is fixedly mounted on the lower end of the base plate and is connected to the deformation assembly.

[0009] Furthermore, the deformation components are symmetrically distributed on the left and right sides of the base plate;

[0010] Furthermore, the deformation assembly includes an upper pull cylinder seat, a cylinder cover, a piston, and reinforcing ribs. The upper pull cylinder seat is fixedly installed on the upper end of the base plate, and the cylinder cover is fixedly installed on the lower end of the upper pull cylinder seat. A piston is movably connected inside the upper pull cylinder seat. Reinforcing ribs are fixedly installed on the bottom of the base plate. The piston is connected to the diaphragm body. The pressure reducing valve is connected to the upper pull cylinder seat.

[0011] Furthermore, the diaphragm body includes a diaphragm support portion and a diaphragm deformation portion. The diaphragm support portion is fixedly connected to the upper end of the upward-pulling cylinder seat. Multiple diaphragm deformation portions are fixedly installed on the upper end of the diaphragm support portion. The diaphragm deformation portions are connected to the clamping assembly. The piston is fixedly connected to the diaphragm support portion.

[0012] Furthermore, the deformable parts of the diaphragm are evenly distributed in a circumferential array on the diaphragm support.

[0013] Furthermore, the clamping assembly includes a claw and a support ring; the support ring is fixedly mounted on the upper end of the base plate via a bracket; the claw is fixedly connected to the diaphragm deformation portion;

[0014] Furthermore, the contact area between the claw and the moving scroll disk is made of soft rubber.

[0015] Furthermore, the trimming ring is engaged with the outer end of the jaw.

[0016] Compared with the prior art, the advantages of this invention are as follows: the moving scroll plate to be processed is placed on the deformation component, and the deformation component causes the diaphragm body to deform. The clamping component is controlled according to the deformation of the diaphragm body to hold the moving scroll plate tightly. Through the cooperation between the diaphragm body and the clamping component, the device achieves higher positioning accuracy with a smaller clamping force, ensuring that the moving scroll plate remains fixed during processing, improving the processing quality of the moving scroll plate and preventing deformation. After the moving scroll plate is fixed, the four-axis rotary table drives the base plate to move, so that the moving scroll plate moves with the base plate. This allows the device to continuously adjust the spatial position of the moving scroll plate from multiple angles, realizing all-round processing of multiple moving scroll plates, further improving the processing quality of the moving scroll plate. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a perspective view of the moving disc machining fixture of this utility model;

[0019] Figure 2 This is a front view of the moving disk machining fixture of this utility model;

[0020] Figure 3 An exploded view of a dual-station flexible self-centering clamping mechanism;

[0021] Figure 4 A three-dimensional view of a dual-station flexible self-centering clamping mechanism;

[0022] Figure 5 The three-dimensional moving disc machining fixture of this utility model Figure 2 .

[0023] The labels in the diagram represent:

[0024] 1. Four-axis rotary table; 2. Base plate; 3. Dual-station flexible self-centering clamping mechanism; 31. Deformation component; 311. Upper pull cylinder seat; 312. Cylinder cover; 313. Piston; 314. Reinforcing rib; 32. Clamping component; 321. Claw; 322. Support ring; 33. Diaphragm body; 331. Diaphragm support part; 332. Diaphragm deformation part; 4. Repair claw ring; 5. Moving scroll plate; 6. Pressure reducing valve. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0027] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-5The moving plate machining fixture includes a four-axis rotary table 1, a base plate 2, a dual-station flexible self-centering clamping mechanism 3, a moving scroll plate 5, and a pressure reducing valve 6. The four-axis rotary table 1 adopts mature technology in the industry, such as the Brother S700Z four-axis rotary table 1. The base plate 2 is fixedly installed on the movable end of the four-axis rotary table 1. The base plate 2 is equipped with a dual-station flexible self-centering clamping mechanism 3, which can self-center and clamp the two moving scroll plates 5 and prevent large deformation of the moving scroll plates 5. The clamping mechanism 3 includes a diaphragm body 33, a clamping assembly 32 for clamping and fixing the moving scroll plate 5, and a deformation assembly 31 for controlling the deformation of the diaphragm body 33. The deformation assembly 31 is symmetrically installed on the left and right sides of the base plate 2. The diaphragm body 33 is installed on the deformation assembly 31, and the clamping assembly 32 is installed on the diaphragm body 33. The pressure reducing valve 6 is fixedly installed at the lower end of the base plate 2 and is connected to the deformation assembly 31. The pressure reducing valve 6 is used to control the oil pressure during clamping, thereby controlling the clamping force and reducing product clamping deformation.

[0028] In this invention, the moving scroll 5 to be processed is placed on the deformation component 31. The deformation component 31 works to deform the diaphragm body 33. The clamping component 32 is controlled by the deformation of the diaphragm body 33 to hold the moving scroll 5 tightly. The cooperation between the diaphragm body 33 and the clamping component 32 enables the device to achieve higher positioning accuracy with a smaller clamping force, ensuring that the moving scroll 5 remains fixed during processing, improving the processing quality of the moving scroll 5 and preventing deformation of the moving scroll 5. After the moving scroll 5 is fixed, the four-axis rotary table 1 works to drive the base plate 2 to move, so that the moving scroll 5 moves with the base plate 2. This allows the device to continuously adjust the spatial position of the moving scroll 5 from multiple angles, realizing all-round processing of multiple moving scrolls 5, further improving the processing quality of the moving scroll 5.

[0029] The deformation assembly 31 includes an upper pull cylinder seat 311, a cylinder cover 312, a piston 313, and a reinforcing rib 314. The upper pull cylinder seat 311 is fixedly installed on the upper end of the base plate 2, and the cylinder cover 312 is fixedly installed on the lower end of the upper pull cylinder seat 311. The piston 313 is movably connected inside the upper pull cylinder seat 311. The reinforcing rib 314 is fixedly installed on the bottom of the base plate 2. The piston 313 is connected to the diaphragm body 33. The pressure reducing valve 6 is connected to the upper pull cylinder seat 311.

[0030] The diaphragm body 33 includes a diaphragm support portion 331 and a diaphragm deformation portion 332. The diaphragm support portion 331 is fixedly connected to the upper end of the upward-pulling cylinder seat 311. Multiple diaphragm deformation portions 332 are fixedly installed on the upper end of the diaphragm support portion 331, and the diaphragm deformation portions 332 are evenly distributed in a circumferential array on the diaphragm support portion 331. The diaphragm deformation portions 332 are connected to the clamping assembly 32. The piston 313 is fixedly connected to the diaphragm support portion 331.

[0031] The clamping assembly 32 includes a claw 321 and a support ring 322; the support ring 322 is fixedly installed on the upper end of the base plate 2 by a bracket; the claw 321 is fixedly connected to the diaphragm deformation part 332; the contact part between the claw 321 and the moving scroll plate 5 is made of soft rubber.

[0032] In this invention, the moving scroll 5 is placed on the support ring 322, and then the upper cylinder seat 311 is activated, driving the piston 313 to move downward. This causes the piston 313 to pull the diaphragm support 331 downward, causing the diaphragm deformation part 332 to concave downward along the axial direction, which in turn causes multiple claws 321 to retract inward simultaneously, thus clamping and fixing the moving scroll 5. After processing is completed, the upper cylinder seat 311 is activated again, driving the piston 313 to move upward. This causes the piston 313 to push the diaphragm support 331 upward. At this time, the diaphragm deformation part 332 protrudes upward along the axial direction, thereby controlling the claws 321 to release the lock on the moving scroll 5.

[0033] Example 2: In some embodiments, such as Figure 4 As shown, in a preferred embodiment of this utility model, the trimming ring 4 is snapped onto the outer end of the jaw 321. When no processing operation has started, the trimming ring 4 is installed on the jaw 321. By adjusting and correcting the position and shape of the jaw 321 through the trimming ring 4, the clamping accuracy of the moving scroll plate 5 is ensured, the moving scroll plate 5 is prevented from shaking during processing, errors are reduced, and thus work efficiency and product quality are improved.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A dynamic disc machining fixture comprising a four-axis rotary table (1), characterised in that: It also includes the bottom plate (2), double-station flexible self-centering clamping mechanism (3), claw repair ring (4), dynamic scroll (5) and pressure reducing valve (6); the movable end of the four-axis rotary table (1) is fixedly installed with the bottom plate (2); the bottom plate (2) is installed with the double-station flexible self-centering clamping mechanism (3) for being able to self-centering clamping two dynamic scrolls (5) and preventing the dynamic scroll (5) from appearing obvious deformation; the double-station flexible self-centering clamping mechanism (3) comprises a diaphragm body (33), a clamping assembly (32) for clamping and fixing the dynamic scroll (5) and a deformation assembly (31) for controlling the diaphragm body (33) to deform; the deformation assembly (31) is installed on the bottom plate (2); the diaphragm body (33) is installed on the deformation assembly (31), and the clamping assembly (32) is installed on the diaphragm body (33); the pressure reducing valve (6) is fixedly installed at the lower end of the bottom plate (2), and the pressure reducing valve (6) is connected with the deformation assembly (31).

2. The dynamic disc machining fixture of claim 1, wherein, The deformation assembly (31) is symmetrically distributed on the left and right sides of the bottom plate (2).

3. The dynamic disc machining fixture of claim 1, wherein, The deformation assembly (31) comprises an upper pulling oil cylinder seat (311), an oil cylinder cover (312), a piston (313) and a reinforcing rib (314), the upper pulling oil cylinder seat (311) is fixedly installed on the upper end of the bottom plate (2), and the oil cylinder cover (312) is fixedly installed at the lower end of the upper pulling oil cylinder seat (311); the piston (313) is movably connected inside the upper pulling oil cylinder seat (311); the reinforcing rib (314) is fixedly installed at the bottom of the bottom plate (2); the piston (313) is connected with the diaphragm body (33); the pressure reducing valve (6) is communicated with the upper pulling oil cylinder seat (311).

4. The dynamic disc machining fixture of claim 3, wherein, The diaphragm body (33) comprises a diaphragm support part (331) and a diaphragm deformation part (332), the diaphragm support part (331) is fixedly connected with the upper end of the upper pulling oil cylinder seat (311); a plurality of diaphragm deformation parts (332) are fixedly installed at the upper end of the diaphragm support part (331); the diaphragm deformation part (332) is connected with the clamping assembly (32); the piston (313) is fixedly connected with the diaphragm support part (331).

5. The dynamic disc machining fixture of claim 4, wherein, The diaphragm deformation parts (332) are uniformly distributed in a circumferential array on the diaphragm support part (331).

6. The dynamic disc machining fixture of claim 5, wherein, The clamping assembly (32) comprises a jaw (321) and a support ring (322); the support ring (322) is fixedly installed on the upper end of the bottom plate (2) through a support; the jaw (321) is fixedly connected with the diaphragm deformation part (332).

7. The dynamic disc machining fixture of claim 6, wherein, The contact part of the jaw (321) with the dynamic scroll (5) uses soft rubber material.

8. The dynamic disc machining fixture of claim 7, wherein, The claw repair ring (4) is clamped at the outer end of the jaw (321).

Images