Machining clamp for movable disc of scroll compressor

Abstract

The utility model relates to the technical field of compressor machining equipment, in particular to a scroll compressor movable disc machining clamp which comprises a base, a positioning table and a plurality of pressing assemblies, and the positioning table and the pressing assemblies are arranged on the base. A plurality of positioning assemblies are arranged on the positioning table and are in one-to-one correspondence with the pressing assemblies, each positioning assembly comprises a first positioning column and a second positioning column, the two positioning columns are located between the first positioning column and the pressing assemblies, the first positioning column is arranged corresponding to the inner side face of the movable disc molded line, and the second positioning column is arranged corresponding to the inner side face of the movable disc molded line. The second positioning column is arranged corresponding to the end surface of the movable disc; the multiple pressing assemblies are arranged on the outer side of the positioning table in a surrounding mode, each pressing assembly comprises a driving piece and a pressing block, one end of each pressing block is connected with the corresponding driving piece, and the other end of each pressing block faces the central axis of the positioning table and abuts against the outer axial face of the movable disc. High-precision positioning of the movable disc in the machining process is achieved, and the machining precision is ensured; and the clamping stability is guaranteed, rapid clamping and releasing can be achieved, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor processing equipment, in particular to a machining fixture for a movable disk of a scroll compressor. Background Technique

[0002] The scroll compressor is an efficient positive-displacement compressor, which is widely used in the fields of refrigeration, air conditioning, etc. Its basic structure includes a movable disk and a stationary disk, and the compression of gas is realized through the relative movement of the two. With the development of technology, the scroll compressor is continuously optimized in design, materials and manufacturing processes to meet higher energy efficiency and stability requirements.

[0003] The movable disk is a key component in the scroll compressor, and its machining accuracy directly affects the performance and service life of the compressor; during the machining process, it is necessary to firmly clamp the movable disk to prevent displacement or vibration caused by cutting force, and ensure the accurate position of the movable disk during the machining process to achieve precise machining; in the related technology, a diaphragm chuck structure is usually used to clamp the outer circle of the movable disk for machining. When the clamping force is too small, the movable disk may displace during the machining process, and when the clamping force is too large, it is extremely easy to cause deformation of the outer circle and end face of the chuck, making it difficult to meet the machining accuracy requirements.

[0004] The information disclosed in this background art section is only intended to deepen the understanding of the overall background art of the present utility model, and should not be regarded as an admission or any form of suggestion that this information constitutes the prior art known to those skilled in the art. Summary of the Utility Model

[0005] The technical problem to be solved by the present utility model is: to provide a machining fixture for a movable disk of a scroll compressor, which is positioned and pressed through the inner side surface of the movable disk profile, and has stable and reliable clamping and small deformation.

[0006] In order to achieve the above object, the technical solution adopted by the present utility model is: a machining fixture for a movable disk of a scroll compressor, comprising: a base, and a positioning table and a plurality of pressing components arranged on the base;

[0007] A plurality of positioning components are arranged on the positioning table, and the positioning components are respectively arranged in one-to-one correspondence with the pressing components. Each positioning component includes a first positioning post and a second positioning post. The second positioning post is located between the first positioning post and the pressing component, and the first positioning post corresponds to the inner side surface of the movable disk profile, and the second positioning post corresponds to the end surface of the movable disk;

[0008] A plurality of the pressing components are arranged around the outside of the positioning table. Each pressing component includes a driving member and a pressing block. One end of the pressing block is connected to the driving member, and the other end is arranged towards the central axis of the positioning table and abuts against the outer shaft surface of the movable disk.

[0009] Furthermore, the first positioning column includes a first segment and a second segment coaxially arranged, the shaft diameter of the first segment is smaller than that of the second segment, and the outer shaft surface of the first segment is arranged to fit the inner shaft surface of the moving disk profile, and the end surface of the second segment facing away from the first segment is fixedly connected to the positioning platform.

[0010] Furthermore, the second positioning column includes a positioning seat and a positioning block, the positioning seat is fixedly arranged on the positioning platform, and is arranged to be in contact with the outer axial surface of the second segment on the side facing the first positioning column, and the positioning block is fixedly arranged at one end of the positioning seat away from the positioning platform, and the end face of the positioning block is arranged opposite to the end face of the moving disk.

[0011] Furthermore, the height of the first positioning column is greater than the height of the second positioning column.

[0012] Furthermore, the clamping assembly also includes a mounting seat and an adapter block, the mounting seat is fixedly arranged on the base, the driving member is arranged on the side of the mounting seat away from the positioning platform, the clamping block is rotatably arranged on the side of the mounting seat facing the positioning platform, the adapter block is arranged inside the mounting seat and connected to the output end of the driving member, and the adapter block forms an abutment arrangement with the side of the clamping block away from the moving disk.

[0013] Furthermore, the clamping block includes a transfer portion, a driving portion and an abutting portion, the transfer portion is located between the driving portion and the abutting portion, and a transfer rod is provided along the horizontal direction through the axis of the transfer portion, both ends of the transfer rod are rotatably connected to the mounting seat, the driving portion is located on the side of the transfer portion facing the driving member, and the abutting portion is provided toward the side of the positioning platform.

[0014] Furthermore, a limiting block is fixedly arranged in the mounting seat on one side facing the positioning platform, and an arc-shaped limiting surface is formed at one end of the limiting block facing the clamping block, and the limiting surface is arranged to abut against the outer side surface of the adapter.

[0015] Furthermore, the driving portion forms a first fitting surface along the tangent direction of the adapter portion, the first fitting surface is a plane, the adapter block forms a second fitting surface on a side opposite to the driving portion, the second fitting surface is an arc surface, and the first fitting surface is arranged in abutment with the second fitting surface, a reset groove is arranged on the side of the driving portion facing away from the adapter block, an elastic member is arranged inside the reset groove, and two ends of the elastic member are respectively abutted on the bottom of the reset groove and the inner side surface of the top of the mounting seat.

[0016] Furthermore, the abutting portion forms an abutting surface on the side opposite to the outer axial surface of the moving plate, and a plurality of continuously and evenly arranged protrusions are provided on the abutting surface.

[0017] Further, at least three sets of the pressing components and the corresponding positioning components are provided.

[0018] Further, a lifting ring is provided on the base, and the lifting rings are distributed at the four corners of the base.

[0019] The beneficial effects of the present utility model are as follows: by providing the first positioning post corresponding to the inner side surface of the dynamic disk profile and the second positioning post corresponding to the end surface of the dynamic disk, high-precision positioning of the dynamic disk during the processing is achieved, ensuring the processing accuracy; by providing a plurality of pressing components to uniformly apply a clamping force to the dynamic disk around the positioning table, the clamping stability is guaranteed, displacement during the processing is prevented, and deformation of the dynamic disk caused by excessive clamping force is also reduced. The fixture can achieve rapid clamping and release, is simple and convenient to operate, and has strong practicability. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic structural diagram of a machining fixture for a dynamic disk of a scroll compressor in an embodiment of the present utility model;

[0022] Figure 2 It is a top view of a machining fixture for a dynamic disk of a scroll compressor in an embodiment of the present utility model;

[0023] Figure 3 It is Figure 2 a cross-sectional view taken along line A-A in

[0024] Figure 4 It is a schematic structural diagram of a positioning component in an embodiment of the present utility model;

[0025] Figure 5 It is a schematic structural diagram of a pressing component in an embodiment of the present utility model;

[0026] Figure 6 It is a top view of a pressing component in an embodiment of the present utility model;

[0027] Figure 7 It is Figure 6 a cross-sectional view taken along line B-B in

[0028] Figure numerals: 1, base; 1a, lifting ring; 2, positioning platform; 10, positioning assembly; 11, first positioning column; 11a, first section; 11b, second section; 12, second positioning column; 12a, positioning seat; 12b, positioning block; 20, clamping assembly; 21, driving member; 22, clamping block; 221, adapter; 222, driving member; 222a, first fitting surface; 222b, reset groove; 223, abutment; 223a, abutment surface; 223b, protrusion; 23, mounting seat; 24, adapter block; 24a, second fitting surface; 25, adapter rod; 26, limit block; 26a, limit surface; 27, elastic member. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0032] like Figures 1 to 7 The scroll compressor moving plate machining fixture shown comprises: a base 1, a positioning platform 2 and a plurality of clamping assemblies 20 arranged on the base 1;

[0033] A plurality of positioning components 10 are arranged on the positioning platform 2, and the positioning components 10 are arranged one by one corresponding to the clamping components 20, and each positioning component 10 includes a first positioning column 11 and a second positioning column 12, the second positioning column 12 is located between the first positioning column 11 and the clamping component 20, and the first positioning column 11 is arranged corresponding to the inner side surface of the movable plate profile, and the second positioning column 12 is arranged corresponding to the end surface of the movable plate;

[0034] A plurality of pressing components 20 are arranged around the outer side of the positioning table 2. Each pressing component 20 includes a driving member 21 and a pressing block 22. One end of the pressing block 22 is connected to the driving member 21, and the other end is arranged towards the central axis of the positioning table 2 and is in contact with the outer shaft surface of the moving disk.

[0035] In this utility model, by providing the first positioning column 11 corresponding to the inner side surface of the moving disk profile and the second positioning column 12 corresponding to the end surface of the moving disk, high-precision positioning of the moving disk during the processing is achieved, ensuring the processing accuracy; by arranging a plurality of pressing components 20 to uniformly apply a clamping force to the moving disk around the positioning table 2, the stability of the clamping is guaranteed, displacement during the processing is prevented, and deformation of the moving disk caused by excessive clamping force is also reduced. The fixture can achieve rapid clamping and release, with simple and convenient operation and strong practicability.

[0036] During the working process, first, the relative position of the moving disk on the positioning table 2 can be determined through a plurality of positioning components 10, and then the outer side surface of the moving disk is clamped and fixed by the pressing components 20, ensuring the stability of the clamping, thereby preventing displacement during the processing.

[0037] It should be noted that a positioning pin is arranged on the positioning table 2. Through the cooperation between the positioning pin and the moving disk, the relative angle between the moving disk and the positioning table 2 can be determined, ensuring the accuracy of the processing orientation.

[0038] On the basis of the above embodiment, the first positioning column 11 includes a first segment 11a and a second segment 11b arranged coaxially. The shaft diameter of the first segment 11a is smaller than that of the second segment 11b, and the outer shaft surface of the first segment 11a is in fit with the inner shaft surface of the moving disk profile. The end surface of the second segment 11b facing away from the first segment 11a is fixedly connected to the positioning table 2; the first positioning column 11 adopts a coaxial segmented structure. The close fit between the first segment 11a and the inner shaft surface of the moving disk improves the positioning accuracy of the moving disk during the processing; the fixed connection between the second segment 11b and the positioning table 2 provides additional stability for the first positioning column 11, reducing vibration during the processing.

[0039] On the basis of the above embodiment, the second positioning column 12 includes a positioning seat 12a and a positioning block 12b. The positioning seat 12a is fixedly arranged on the positioning platform 2, and is arranged to be in contact with the outer axial surface of the second segment 11b on the side facing the first positioning column 11. The positioning block 12b is fixedly arranged at the end of the positioning seat 12a away from the positioning platform 2, and the end face of the positioning block 12b is arranged opposite to the end face of the moving disk; the second positioning column 12 is composed of two components: the positioning seat 12a and the positioning block 12b. The positioning block 12b is fixedly arranged at the end of the positioning seat 12a away from the positioning platform 2, and is arranged opposite to the end face of the moving disk, providing precise positioning on the end face. The positioning seat 12a is fixedly arranged on the positioning platform 2, and is in contact with the outer axial surface of the second segment 11b on the side facing the first positioning column 11, providing a stable support point for the moving disk, thereby enhancing the overall stability.

[0040] On the basis of the above embodiment, the height of the first positioning column 11 is set greater than the height of the second positioning column 12; this helps to more accurately position the moving disk on the inner side of the moving disk profile, ensuring accuracy during the processing; and due to the height advantage of the first positioning column 11, positioning in two directions can be provided on the inner side and inner end face of the moving disk, thereby increasing the stability of positioning.

[0041] On the basis of the above embodiment, the clamping assembly 20 also includes a mounting seat 23 and an adapter block 24. The mounting seat 23 is fixedly arranged on the base 1, the driving member 21 is arranged on the side of the mounting seat 23 away from the positioning platform 2, the clamping block 22 is rotatably arranged on the side of the mounting seat 23 facing the positioning platform 2, and the adapter block 24 is arranged inside the mounting seat 23, connected to the output end of the driving member 21, and the adapter block 24 forms an abutment arrangement with the side of the clamping block 22 away from the moving disk; the mounting seat 23 is fixedly arranged on the base 1 to provide a stable support platform for the driving member 21 and the adapter block 24; the driving member 21 is arranged on the side of the mounting seat 23 away from the positioning platform 2, and is used to control the clamping action of the clamping block 22. As the driving member 21 works, the adapter block 24 moves to make the clamping block 22 rotate relative to the mounting seat 23, and abut against the outer shaft surface of the moving disk to realize the clamping function; the flexibility and adaptability of the clamp are increased, and the stability and accuracy of the moving disk processing are improved.

[0042] Based on the above embodiments, the pressing block 22 includes a transfer portion 221, a driving portion 222, and an abutting portion 223. The transfer portion 221 is located between the driving portion 222 and the abutting portion 223. A transfer rod 25 is provided through the transfer portion 221 along the horizontal direction at the axis. Both ends of the transfer rod 25 are rotatably connected to the mounting seat 23. The driving portion 222 is located on the side of the transfer portion 221 facing the driving member 21, and the abutting portion 223 is arranged facing the positioning table 2. The pressing block 22 is composed of three parts: the transfer portion 221, the driving portion 222, and the abutting portion 223. Each part has different functions and positions. The transfer portion 221 is located between the driving portion 222 and the abutting portion 223, playing a role in connecting and transmitting force. The transfer rod 25 is provided on the transfer portion 221 and is rotatably connected to the mounting seat 23 at both ends, allowing the pressing block 22 to rotate in the horizontal direction. The driving portion 222 is used to receive the force from the driving member 21. Under the rotational action, the abutting portion 223 abuts against the outer shaft surface of the moving disk, realizing the pressing of the moving disk. This enables the pressing force to act precisely on the moving disk, improving the stability and precision during the processing.

[0043] Based on the above embodiments, a limiting block 26 is fixedly provided on the side of the mounting seat 23 facing the positioning table 2. An arc-shaped limiting surface 26a is formed at one end of the limiting block 26 facing the pressing block 22, and the limiting surface 26a is in contact with the outer side surface of the transfer portion 221. The limiting block 26 is used to control the position and movement range of the pressing block 22. The formed arc-shaped limiting surface 26a can naturally adapt to the rotational movement of the pressing block 22, ensuring that the pressing block 22 does not exceed the predetermined movement range during rotation, avoiding damage to the moving disk or fixture, and ensuring the accurate application of the pressing force.

[0044] Based on the above embodiments, the driving portion 222 forms a first fitting surface 222a along the tangent direction of the transfer portion 221. The first fitting surface 222a is a plane. A second fitting surface 24a is formed on the side of the transfer block 24 opposite to the driving portion 222. The second fitting surface 24a is an arc surface, and the first fitting surface 222a is in contact with the second fitting surface 24a. A reset groove 222b is provided on the side of the driving portion 222 away from the transfer block 24. An elastic member 27 is provided inside the reset groove 222b. Both ends of the elastic member 27 are respectively in contact with the bottom of the reset groove 222b and the inner side surface of the top of the mounting seat 23. The cooperation between the first fitting surface 222a and the second fitting surface 24a enables the driving member 21 to control the relative rotation of the pressing block 22 through the driving portion 222 when driving the transfer block 24 to move horizontally in the horizontal direction, improving the fitting precision of the pressing block 22 during pressing and releasing, and ensuring the uniform distribution of the pressing force. The reset groove 222b provides an assembly and reset space for the elastic member 27, ensuring that the pressing block 22 can be reset smoothly and avoiding jamming caused by incomplete reset.

[0045] On the basis of the above embodiments, a contact surface 223a is formed on the side of the contact portion 223 opposite to the outer axial surface of the moving disk, and a number of continuously and uniformly arranged protrusions 223b are provided on the contact surface 223a; the provision of the protrusions 223b increases the frictional force between the contact surface 223a and the moving disk, which helps to more stably fix the moving disk during the processing and reduce sliding; and the uniformly arranged protrusions 223b can distribute the pressing force more evenly, avoid generating local high-pressure points on the moving disk, and reduce the risk of deformation.

[0046] On the basis of the above embodiments, at least three sets of pressing assemblies 20 and corresponding positioning assemblies 10 are provided; the clamping force can be distributed more evenly to achieve comprehensive support and fixation of the moving disk, reduce the vibration and displacement of the moving disk during the processing, and ensure the processing accuracy.

[0047] On the basis of the above embodiments, a lifting ring 1a is provided on the base 1, and the lifting rings 1a are distributed at the four corners of the base 1; the provision of the lifting rings 1a provides convenience for hoisting and moving the fixture, reduces the need for manual handling, and improves the operation efficiency; and the position distribution of the lifting rings 1a can ensure the balance of the fixture during the hoisting process, reducing the safety risk caused by imbalance.

[0048] Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A scroll compressor moving plate machining fixture, characterized in that: include: A base, a positioning platform and a plurality of pressing components arranged on the base; The positioning platform is provided with a plurality of positioning components, and the positioning components are respectively arranged in one-to-one correspondence with the clamping components, each of the positioning components comprises a first positioning column and a second positioning column, the second positioning column is located between the first positioning column and the clamping component, and the first positioning column is arranged correspondingly to the inner side surface of the movable plate profile, and the second positioning column is arranged correspondingly to the end surface of the movable plate; A plurality of clamping assemblies are arranged around the outer side of the positioning platform, and each of the clamping assemblies includes a driving member and a clamping block. One end of the clamping block is connected to the driving member, and the other end is arranged toward the central axis of the positioning platform and abuts against the outer shaft surface of the moving disk.

2. The scroll compressor moving plate machining fixture according to claim 1, characterized in that: The first positioning column includes a first segment and a second segment which are coaxially arranged. The shaft diameter of the first segment is smaller than that of the second segment. The outer shaft surface of the first segment is fitted with the inner shaft surface of the movable plate profile. The end surface of the second segment which is away from the first segment is fixedly connected to the positioning platform.

3. The scroll compressor moving plate machining fixture according to claim 2, characterized in that: The second positioning column includes a positioning seat and a positioning block. The positioning seat is fixedly arranged on the positioning platform and is arranged to be in contact with the outer axial surface of the second segment on the side facing the first positioning column. The positioning block is fixedly arranged at one end of the positioning seat away from the positioning platform, and the end face of the positioning block is arranged opposite to the end face of the moving disk.

4. The scroll compressor moving plate machining fixture according to claim 3, characterized in that: The height of the first positioning column is greater than the height of the second positioning column.

5. The scroll compressor moving plate machining fixture according to claim 1, characterized in that: The clamping assembly also includes a mounting seat and an adapter block, the mounting seat is fixedly arranged on the base, the driving member is arranged on the side of the mounting seat away from the positioning platform, the clamping block is rotatably arranged on the side of the mounting seat facing the positioning platform, the adapter block is arranged inside the mounting seat and connected to the output end of the driving member, and the adapter block is abutted against the side of the clamping block away from the moving disk.

6. The scroll compressor moving plate machining fixture according to claim 5, characterized in that: The clamping block includes a transfer portion, a driving portion and an abutting portion, the transfer portion is located between the driving portion and the abutting portion, and a transfer rod is provided at the axis of the transfer portion along a horizontal direction, both ends of the transfer rod are rotatably connected to the mounting seat, the driving portion is located on a side of the transfer portion facing the driving member, and the abutting portion is provided on a side facing the positioning platform.

7. The scroll compressor moving plate machining fixture according to claim 6, characterized in that: A limiting block is fixedly arranged in the mounting seat on one side facing the positioning platform, and an arc-shaped limiting surface is formed on one end of the limiting block facing the pressing block, and the limiting surface is arranged to abut against the outer side surface of the adapter.

8. The scroll compressor moving plate machining fixture according to claim 7, characterized in that: The driving part forms a first fitting surface along the tangent direction of the adapter part, the first fitting surface is a plane, the adapter block forms a second fitting surface on a side opposite to the driving part, the second fitting surface is an arc surface, and the first fitting surface is arranged in abutment with the second fitting surface, a reset groove is arranged on the side of the driving part away from the adapter block, an elastic member is arranged inside the reset groove, and two ends of the elastic member are respectively arranged to abut the bottom of the reset groove and the inner side surface of the top of the mounting seat.

9. The scroll compressor moving plate machining fixture according to claim 8, characterized in that: The abutting portion forms an abutting surface on the side opposite to the outer axial surface of the moving plate, and a plurality of continuously and evenly arranged protrusions are arranged on the abutting surface.

10. The scroll compressor moving plate machining fixture according to claim 1, characterized in that: The base is provided with hanging rings, and the hanging rings are distributed at the four corners of the base.

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