Machining clamp for static scroll plate of electric scroll compressor

Abstract

The utility model relates to the technical field of scroll plate processing, in particular to a static scroll plate processing clamp for an electric scroll compressor, which comprises a clamping mechanism, a detection mechanism is arranged on the clamping mechanism, the detection mechanism comprises a gas outlet mounted on the clamping surface of the clamping mechanism, and the gas outlet is connected to the output end of a gas power component. The clamping mechanism can be used for clamping the scroll plate, the detection mechanism can be used for detecting the relative position of the clamping mechanism and the scroll plate, that is, the gas outlet is used for outputting gas to act on the scroll plate and the clamping mechanism, whether a gap exists between the scroll plate and the clamping mechanism or not is judged, and if yes, the clamping mechanism is used for clamping the scroll plate. And if the gap exists, it is indicated that the scroll plate does not reach the clamping face of the clamping mechanism, the workpiece is not clamped in place, if the gap does not exist, it is indicated that the clamping position of the workpiece is accurate, and the next machining operation can be directly carried out, so that the problem that the workpiece cannot be accurately positioned in the prior art can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to scroll disc processing technical field, concretely is a kind of for electric scroll compressor static scroll disc processing fixture. BACKGROUND

[0002] Scroll disc is the core component of scroll compressor, scroll compressor belongs to one kind of positive displacement compressor, mainly used for refrigeration and air conditioning system, scroll disc is composed of two intermeshing spiral scroll teeth, one spiral scroll tooth is fixed state, another spiral scroll tooth is rotating state, and forms airtight cavity.

[0003] Since scroll disc is important and high-precision part in automobile air conditioner compressor, and scroll disc has multiple operation contents, usually multiple models of compressor scroll discs are processed simultaneously on a production line, different compressor scroll discs have large size difference, usually each scroll disc is designed and processed individually according to processing tooling, which is high in cost, and time is wasted when changing type, production efficiency is affected, skill requirement of employees is high during clamping, and production efficiency is affected.

[0004] When scroll disc is clamped and fixed, fixture is usually used for position limiting, for example, a center spring clamp is disclosed in patent document with application number 201922325685.8, and specifically, workpiece is quickly clamped by spring clamping on positioning cone and screw protrusion.

[0005] In the above technical solution, workpiece is directly placed on spring to realize positioning of workpiece, and the process cannot determine whether the clamping position of workpiece is in place, so that the accuracy of subsequent processing of workpiece is affected. UTILITY MODEL CONTENTS

[0006] The utility model solves the problem that whether workpiece is clamped in place cannot be determined when workpiece is clamped and fixed under the action of spring in prior art.

[0007] The utility model can be implemented by the following technical solution: a processing fixture for static scroll disc of electric scroll compressor, which comprises a clamping mechanism for clamping scroll disc, a detection mechanism for detecting position of scroll disc is arranged on the clamping mechanism, the detection mechanism comprises a gas outlet installed on the clamping surface of the clamping mechanism, and the gas outlet is connected to the output end of a gas power assembly.

[0008] Further technical improvement of the utility model lies in that the gas power assembly comprises airtight tube, and both ends of the airtight tube are connected to the gas outlet and the output end of the gas pump respectively.

[0009] The further technical improvement of the utility model lies in: the clamping mechanism comprises an expansion spring, the expansion spring is installed on the mandrel in cooperation, the expansion spring is installed on the pull disc through a connecting rod, a pull rod is fixedly installed on the pull disc, and the position of the pull rod is adjustable.

[0010] The further technical improvement of the utility model lies in: the mandrel is fixedly installed on the positioning seat, the positioning seat is fixedly installed on the connecting seat, and the connecting seat is connected with the flange of the lathe.

[0011] The further technical improvement of the utility model lies in: the airtight tube and the mandrel are fixedly installed with the anti-loosening spring.

[0012] The further technical improvement of the utility model lies in: the airtight tube is fixedly installed inside the pull rod, the airtight tube and the inner wall of the pull rod are fixedly provided with the shockproof sleeve, and the shockproof sleeve is provided with a plurality of groups.

[0013] The further technical improvement of the utility model lies in: the connecting part of the airtight tube and the mandrel is provided with the second radial sealing ring and the third radial sealing ring.

[0014] The further technical improvement of the utility model lies in: the first radial sealing ring and the first axial sealing ring are arranged between the airtight tube and the air pump.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The clamping mechanism can realize the clamping function of the scroll disc, the detection mechanism can realize the detection of the relative position of the clamping mechanism and the scroll disc, that is, the gas output by the gas outlet acts on the scroll disc and the clamping mechanism, the existence of the gap between the scroll disc and the clamping mechanism is judged, if the gap exists, it indicates that the scroll disc does not reach the clamping surface of the clamping mechanism, and the workpiece is not clamped in place, if the gap does not exist, it indicates that the clamping position of the workpiece is accurate, and the next processing operation can be directly carried out, so that the problem that the workpiece cannot be accurately positioned in the prior art can be solved.

[0017] 2. The shockproof sleeve is arranged between the airtight tube and the pull rod, the installation firmness of the airtight tube can be ensured, the problem that the airtight tube falls off due to vibration generated in the clamping process can be avoided, the anti-loosening spring and the end of the airtight tube are fixedly connected in the utility model, the loosening problem of the airtight tube generated during long-term work can be prevented, and the stability of the airtight tube can be maintained. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to facilitate the understanding of those skilled in the art, the utility model will be further described below with reference to the drawings.

[0019] Figure 1 It is a schematic view of the clamp structure of the utility model;

[0020] Figure 2 For the utility model Figure 1 The local enlarged view of A in the middle;

[0021] Figure 3 For the utility model Figure 1 The local enlarged view of B in the middle.

[0022] In the figure: 1, air-tight connecting seat; 2, first axial sealing ring; 3, first radial sealing ring; 4, air-tight tube; 5, oil hub base body; 6, pull rod; 7, shockproof sleeve; 8, pull plate; 9, connecting seat; 10, positioning seat; 11, mandrel; 12, positioning disc; 13, expansion spring; 14, plug; 15, anti-loosening spring; 16, second radial sealing ring; 17, third radial sealing ring; 18, locking bolt; 19, connecting rod. Specific implementation

[0023] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific implementation, structure, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0024] Please refer to Figures 1-3 As shown in the figure, a kind of for electric scroll compressor static scroll machining clamp, including the clamping assembly for clamping scroll plate and the air-tight assembly for realizing air-tight function, when using, scroll plate is placed on clamping assembly, directly acts on scroll plate using clamping assembly, clamps and fixes scroll plate, facilitate the subsequent processing of scroll plate, while using air-tight assembly to accurately calibrate the clamping position of scroll plate, to ensure the processing accuracy of scroll plate.

[0025] As a further embodiment of the present application, wherein the clamping assembly includes expansion spring 13 and positioning disc 12, wherein expansion spring 13 is fitted on mandrel 11, and the expansion spring 13 is installed on pull plate 8 through connecting rod 19, pull plate 8 and pull rod 6 are fixedly connected, pull rod 6 is connected with rear rotary oil hub, the pull rod 6 is moved by pulling the rear rotary oil hub, so that pull plate 8 is moved, under the premise that connecting rod 19 moves with pull plate 8, expansion spring 13 is moved, at this time, the clamping part of expansion spring 13 is opened between the circumference of mandrel 11, at this time, the clamping position of expansion spring 13 increases in diameter, the purpose of clamping workpiece is realized, and then the workpiece can be processed.

[0026] In order to realize the installation of mandrel 11, mandrel 11 is installed on positioning seat 10, and positioning seat 10 is fixedly installed on connecting seat 9, wherein connecting seat 9 is connected with the flange of lathe.

[0027] As a further embodiment of the application, wherein the air-tight assembly comprises an air-tight detection channel, wherein the air-tight detection channel is arranged between the oil hub base 5 and the clamp end head, and the end of the air-tight detection channel is provided with an air-tight tube 4 fixedly installed on the air-tight connecting seat 1, wherein the air-tight tube 4 passes through the center position of the pull rod 6, and the end of the air-tight tube 4 away from the air-tight connecting seat 1 is fixedly connected with the mandrel 11, and the anti-loose spring 15 is fixed at the end of the mandrel 11 and fixedly connected with the end of the air-tight tube 4, for preventing loosening of the air-tight tube 4 caused by long-term work, and maintaining the installation stability of the air-tight tube 4, and in the application, the shockproof sleeve 7 is fixed between the air-tight tube 4 and the inner wall of the pull rod 6, and the shockproof sleeve 7 is provided with multiple groups. In use, weak gas is input from the air-tight tube 4 to the position of the mandrel 11 by the air pump, and the gas flows from the mandrel 11 to the position of the positioning seat 10, and then flows to the contact surface of the positioning disc 12 and the workpiece through the inner pipe groove of the positioning seat 10. At this time, since the workpiece and the positioning disc 12 are attached and connected, whether the gas can be discharged from the positioning disc 12 is judged. If yes, it indicates that the clamping position of the workpiece is not accurate, and the position of the workpiece needs to be recalibrated. If no, it indicates that the clamping position of the workpiece is accurate, and the position of the workpiece does not need to be calibrated, which can ensure the position accuracy of the workpiece and the subsequent machining accuracy of the workpiece.

[0028] As a further embodiment of the application, in order to ensure the sealing performance of the air-tight tube 4, the air-tight tube 4 and the air-tight connecting seat 1 are provided with a first axial sealing ring 2 and a first radial sealing ring 3, and the air-tight tube 4 and the air-tight connecting seat 1 are connected and installed in an air-tight manner by the first axial sealing ring 2 and the first radial sealing ring 3, and in the application, the first axial sealing ring 2 and the first radial sealing ring 3 are double O-shaped sealing rings.

[0029] Further, the connecting end of the air-tight tube 4 and the mandrel 11 is provided with a second radial sealing ring 16 and a third radial sealing ring 17, and the air-tight tube 4 and the mandrel 11 are connected in a sealed manner by the second radial sealing ring 16 and the third radial sealing ring 17, and the second radial sealing ring 16 and the third radial sealing ring 17 are double O-shaped sealing rings.

[0030] In use, first, the pull rod 6 is moved by the rear pull of the rotary oil hub, so as to drive the pull plate 8 to move, and under the premise that the connecting rod 19 moves with the pull plate 8, the expansion spring 13 is driven to move, at this time, the clamping part of the expansion spring 13 is opened between the circumference of the mandrel 11, at this time, the clamping position diameter of the expansion spring 13 is increased, so as to achieve the purpose of clamping the workpiece, and then the workpiece can be processed;

[0031] Subsequently, weak gas is input from the airtight tube 4 to the position of the mandrel 11 by a gas pump, and the gas flows from the mandrel 11 to the position of the locating seat 10, and then flows to the contact surface of the locating disc 12 and the workpiece through the internal tube groove of the locating seat 10, at this time, since the workpiece and the locating disc 12 are attached and connected, whether the gas can be discharged from the locating disc 12 is judged, if yes, it indicates that the clamping position of the workpiece is not accurate, and the position of the workpiece needs to be recalibrated, if no, it indicates that the clamping position of the workpiece is accurate, and the position of the workpiece does not need to be calibrated, which can ensure the position accuracy of the workpiece and ensure the subsequent machining accuracy of the workpiece.

[0032] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any indirect modification, equivalent change and modification of the above embodiments according to the technical essence of the present application still belong to the scope of the technical solution of the present application.

Claims

1. A machining jig for a stationary scroll of an electric scroll compressor, comprising a clamping mechanism for clamping a scroll, characterized by: The clamping mechanism is provided with a detection mechanism for detecting the position of the scroll plate, which comprises a gas outlet installed on the clamping surface of the clamping mechanism, and the gas outlet is connected to the output end of the gas power assembly.

2. The machining fixture for the stationary scroll of an electric scroll compressor according to claim 1, wherein The gas power assembly comprises an airtight tube (4), and the two ends of the airtight tube (4) are respectively connected to the gas outlet and the output end of the gas pump.

3. The machining fixture for the stationary scroll of an electric scroll compressor according to claim 2, wherein The clamping mechanism comprises an expansion spring (13) which is fitted on the mandrel (11), and the expansion spring (13) is installed on the pull plate (8) through a connecting rod (19), the pull plate (8) is fixedly installed with a pull rod (6), and the position of the pull rod (6) is adjustable.

4. The machining fixture for the stationary scroll of an electric scroll compressor according to claim 3, wherein The mandrel (11) is fixedly installed on a positioning seat (10), the positioning seat (10) is fixedly installed on a connecting seat (9), and the connecting seat (9) is connected with the flange of the lathe.

5. The machining fixture for the stationary scroll of an electric scroll compressor according to claim 3, wherein The airtight tube (4) and the mandrel (11) are fixedly installed with an anti-loosening spring (15).

6. The machining fixture for the stationary scroll of an electric scroll compressor according to claim 3, wherein The airtight tube (4) is fixedly installed inside the pull rod (6), and the airtight tube (4) and the inner wall of the pull rod (6) are fixedly installed with a shockproof sleeve (7), and the shockproof sleeve (7) is provided with a plurality of groups.

7. The machining fixture for the stationary scroll of an electric scroll compressor according to claim 5, wherein The connecting part of the airtight tube (4) and the mandrel (11) is provided with a second radial sealing ring (16) and a third radial sealing ring (17).

8. The machining fixture for the stationary scroll of an electric scroll compressor according to claim 2, wherein The airtight tube (4) and the gas pump are provided with a first radial sealing ring (3) and a first axial sealing ring (2).

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