Auxiliary tooling for assembling a movable scroll of a scroll compressor

Abstract

The present invention discloses an auxiliary tooling for assembling a movable scroll of a scroll compressor, comprising a movable scroll fixing frame, a magnetic block and a movable scroll release mechanism. The magnetic block is fixedly mounted on the end face A of the movable scroll fixing frame, and is used to generate magnetic force to adsorb the wear-resistant ring and the bearing in the movable scroll into the corresponding mounting holes of the movable scroll. The movable scroll fixing frame is used to fix and clamp the movable scroll so that the movable scroll does not fall out after the auxiliary tooling is inverted. The movable scroll release mechanism is arranged below the movable scroll fixing frame, and is fastened to the movable scroll fixing frame by screws. The middle part of the movable scroll release mechanism extends into the movable scroll fixing frame, and is used to push and disengage the assembled movable scroll from the auxiliary tooling. The present invention solves the problem of difficulty in assembling the movable scroll and easy missing of parts. The controllable assembly of parts in the workstation is achieved; vertical assembly is possible, the movement of workpieces is reduced, the consistency of the upper and lower workstation fixtures is ensured, and the linkage of the production line is achieved; the assembly time can be shortened by more than 4S, and the assembly efficiency of the whole machine is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of assembling a movable scroll of a scroll compressor, and in particular relates to an auxiliary tooling used for assembling a movable scroll of a scroll compressor. Background Art

[0002] The automotive air-conditioning compressor is the core component of automotive air-conditioning refrigeration. To date, the main models include rotary vane, piston, screw, scroll and other types of compressors. Compared with other types of compressors, scroll compressors have obvious advantages due to their small size, light weight, low noise, no air valve, few parts, and long service life. With the improvement of the precision of processing equipment in recent years, scroll compressors have gradually occupied a dominant position in automotive air-conditioning, especially in electric compressors, which have a dominant position due to their low energy consumption and high COP value. In order to improve production efficiency and save labor costs, many assembly stations of the assembly lines configured by various manufacturers currently use automated operations, but manual operations are still used in the movable scroll assembly station.

[0003] For a scroll compressor that uses a cylindrical pin anti-rotation mechanism, multiple parts need to be assembled simultaneously at the movable scroll assembly station, including one movable scroll, six wear-resistant rings, and one bearing. When the wear-resistant ring and the bearing are assembled on the movable scroll, they are located below the movable scroll without support and are easy to fall out. According to conventional operations, when the movable scroll is assembled vertically, the wear-resistant ring and the bearing can only be fixed by applying lubricating oil and relying on the adhesion generated by the oil film. When the movable scroll is assembled at an angle, the wear-resistant ring and the bearing will not fall out of the hole in the movable scroll. However, when assembling the movable scroll into the compressor, the compressor body needs to be tilted before it can be installed. The entire operation process is very inconvenient, and parts are very easy to be lost during the tilting assembly process. The operation time is long, which results in a longer time cycle for the entire assembly line and reduces assembly efficiency. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and to provide an auxiliary tooling for assembling a movable scroll of a scroll compressor, which has a simple structure and is easy to operate, reduces the assembly operation time of the workstation, improves the qualification rate and efficiency of the assembled compressor, and solves the problem of easy loss and missing of parts.

[0005] The object of the present invention is achieved in that:

[0006] An auxiliary tooling for assembling a movable scroll of a scroll compressor comprises a movable scroll fixing frame, a magnetic block and a movable scroll release mechanism, wherein the magnetic block is fixedly mounted on the end face A of the movable scroll fixing frame and is used to generate magnetic force to adsorb the wear-resistant ring and the bearing in the movable scroll into the corresponding mounting holes of the movable scroll, the movable scroll fixing frame is used to fix and clamp the movable scroll so that the movable scroll does not fall out after the auxiliary tooling is inverted, the movable scroll release mechanism is arranged below the movable scroll fixing frame and is fastened to the movable scroll fixing frame by screws, and the middle part of the movable scroll release mechanism extends into the movable scroll fixing frame and is used to push the assembled movable scroll and release it from the auxiliary tooling.

[0007] Furthermore, a profile groove is provided in the circumferential direction of the inner side of the movable scroll fixing frame, which cooperates with the profile groove of the movable scroll. A V-shaped notch is provided at the outer end of the profile groove along the axial direction, and the V-shaped notch is connected to the profile groove. When the movable scroll is installed into the movable scroll fixing frame, the outer edge of the profile groove of the movable scroll expands, causing the scroll fixing frame to deform. The elastic force generated by the deformation of the V-shaped notch and the profile groove clamps the movable scroll, so that the movable scroll does not fall out after the auxiliary tooling is inverted. A plurality of countersunk holes are provided on the end face A of the movable scroll fixing frame, and the countersunk holes are arranged in pairs for embedding magnetic blocks. After the movable scroll is installed, the top surface of the movable scroll profile fits with the end face A. A plurality of threaded holes are evenly distributed on the end face B of the movable scroll fixing frame for connecting the movable scroll release mechanism. A first through hole for the movable scroll release mechanism to pass through is provided at the center of the end face B of the movable scroll fixing frame.

[0008] Furthermore, the movable scroll release mechanism includes a support, a push plate, a push rod, a return spring and a release handle. A first stepped hole is provided at the center of the support, and a plurality of second stepped holes are evenly distributed circumferentially. The second stepped holes are used to insert screws to connect the support and the movable scroll fixing frame. The push plate is arranged above the end surface B of the movable scroll fixing frame, and its bottom is in contact with the end surface B of the movable scroll fixing frame. After the movable scroll is installed, the top of the push plate contacts the bottom surface of the movable scroll profile line. The push rod is placed below the push plate and the movable scroll fixing frame The first through hole of the frame and the first stepped hole of the support are fastened to the push plate by screws, the push rod is provided with a shoulder, and is axially limited by the step surface of the first stepped hole of the support, the reset spring is sleeved on the push rod and placed in the large diameter hole of the first stepped hole of the support, the two ends of the reset spring respectively contact with one end of the push rod shoulder and the bottom of the movable scroll fixing frame, which is used for resetting the push rod and the push plate, and the other end of the push rod shoulder is also tightly fitted with a release handle, and pressing the release handle drives the push rod and the push plate to push the movable scroll away from the auxiliary tooling.

[0009] Furthermore, the V-shaped notch is at an angle of 30°, and the two inclined surfaces of the notch are arranged symmetrically.

[0010] Furthermore, a positioning groove is provided on the outer peripheral surface of the movable scroll fixing frame, and the positioning groove is symmetrically arranged front to back, and is used for positioning on the detection device when detecting the number of wear-resistant rings and bearings.

[0011] Furthermore, a second through hole is provided on the end surface of the movable scroll fixing frame B for riveting the guide column, and a positioning notch is provided on the push plate along the axial direction. When the push plate is installed, the positioning notch is aligned with the guide column for assembly.

[0012] Furthermore, the support is in an inverted T-shape, and the rod portion of the support is provided with a positioning surface, which is symmetrically arranged along the axial direction and is used to position the auxiliary tooling fixed with the movable scroll when it is installed on the assembly line bracket to prevent the auxiliary tooling from rotating and facilitate the insertion of wear-resistant rings and bearings.

[0013] Furthermore, the countersunk holes arranged in pairs are provided in 6 groups, 12 in total, and the interval between two adjacent groups of countersunk holes is 60 degrees. The magnetic blocks are embedded in the 12 countersunk holes and have the same polarity in the same direction.

[0014] Due to the adoption of the above technical solution, the present invention has the following beneficial effects:

[0015] 1. A profile groove is opened in the movable scroll fixing frame, and a V-shaped notch with an angle of 30° is cut on the profile groove at the outer end. The notch is connected with the profile groove, so that the outer part of the movable scroll fixing frame is deformed and contracted; when the movable scroll is installed in the movable scroll fixing frame, the movable scroll is guided by the chamfer of the edge of the upper end surface of the movable scroll fixing frame, and at the same time, the profile groove is expanded to deform and actuate the movable scroll to be installed in the movable scroll fixing bracket, and the elastic force generated by the deformation of the profile groove and the V-shaped notch is used to clamp the movable scroll, so that the movable scroll does not fall out after the auxiliary tooling is inverted;

[0016] 2. Install multiple sets of paired magnetic blocks in the countersunk holes on the end face of the movable scroll fixing frame A, so that when the movable scroll is assembled with the wear-resistant ring and the bearing, the magnetic blocks generate magnetic force to adsorb the wear-resistant ring and the bearing into the corresponding holes of the movable scroll, ensuring that the wear-resistant ring and the bearing will not fall out from the bottom after the movable scroll is inverted during the subsequent inspection process and when it is installed in the compressor body;

[0017] 3. By setting a movable scroll release mechanism, when the movable scroll that has been assembled and qualified is installed in the compressor body, the release handle is pushed, and the push plate is pushed by the push rod. The push plate acts on the bottom surface of the movable scroll profile, and pushes the movable scroll away from the auxiliary tooling for a distance until the magnetic force is less than the gravity. After the movable scroll is completely separated from the auxiliary tooling, the release handle is released, and the push rod and the push plate are reset under the action of the reset spring. The movable scroll that has been tested and qualified can be quickly installed in the compressor body, which reduces the movement of the workpiece, ensures the consistency of the upper and lower workstation fixtures, and realizes the linkage of the production line;

[0018] 4. The problem of difficult assembly of the movable scroll and easy missing of parts has been solved. The assembly of parts in this station can be controlled and assembled vertically. The whole operation process can shorten the assembly time by more than 4S, thus improving the assembly efficiency of the whole machine.

[0019] 5. The auxiliary tooling has a simple structure, is easy to operate and manufacture. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of the present invention;

[0021] Figure 2 is a top view of the present invention;

[0022] Figure 3 It is the front view of the movable scroll fixing frame;

[0023] Figure 4 is a top view of the movable scroll fixing frame;

[0024] Figure 5 is a bottom view of the movable scroll fixing frame;

[0025] Figure 6 It is a schematic diagram of the structure of the push rod;

[0026] Figure 7 It is the main view of the support;

[0027] Figure 8 is a top view of the support;

[0028] Fig. 9 It is a schematic diagram of the assembly of the movable scroll, the wear-resistant ring and the bearing of the present invention;

[0029] Fig.10 This is the line drawing of the movable scroll.

[0030] Reference numerals

[0031] In the accompanying drawings, 1 is a movable scroll fixing frame, 2 is a magnetic block, 3 is a guide column, 4 is a push plate, 5 is a screw, 6 is a support, 7 is a push rod, 8 is a release handle, 9 is a return spring, 10 is a movable scroll, 11 is a wear-resistant ring, 12 is a bearing,

[0032] 101 is a profile groove, 102 is a V-shaped notch, 103 is a countersunk hole, 104 is a threaded hole, 105 is a first through hole, 106 is a second through hole, and 107 is a positioning groove

[0033] 401 is the positioning notch, 601 is the first stepped hole, 602 is the second stepped hole, 603 is the positioning surface,

[0034] 701 is the shaft shoulder, 1001 is the movable scroll profile DETAILED DESCRIPTION

[0035] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0036] In this embodiment, the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", "upper end", "lower end", etc. are directions or positional relationships shown in the projection of the standard view.

[0037] See also Figure 1-Figure 9 An auxiliary tooling for assembling a movable scroll of a scroll compressor comprises a movable scroll fixing frame 1, a magnetic block 2 and a movable scroll release mechanism. The magnetic block 2 is cylindrical and fixedly mounted on the A end face of the movable scroll fixing frame 1, and is used to generate magnetic force to adsorb the wear-resistant ring 11 and the bearing 12 in the movable scroll 10 into the corresponding mounting holes of the movable scroll 10. The movable scroll fixing frame 1 is used to fix and clamp the movable scroll 10 so that the movable scroll 10 does not fall out after the auxiliary tooling is inverted. The movable scroll release mechanism is arranged below the movable scroll fixing frame 1 and is fastened to the movable scroll fixing frame 1 by screws 5. The middle part of the movable scroll release mechanism extends into the movable scroll fixing frame 1, and is used to push the assembled movable scroll 10 and separate it from the auxiliary tooling.

[0038] like Figures 3 to 5 As shown, in this embodiment, the movable scroll fixing frame 1 adopts a cylinder, and a profile groove 101 is opened inside along the circumferential direction, which cooperates with the movable scroll profile 1001. The profile groove 101 at the outer end is processed into a through groove, and the profile groove 101 at the outer end is axially penetrated with a V-shaped notch 102, the V-shaped notch 102 is connected to the profile groove 101, the V-shaped notch is at an angle of 30°, and the two inclined surfaces of the notch are symmetrically arranged. The upper end surface of the movable scroll fixing frame 1 is provided with an arc chamfer. When the movable scroll 10 is installed into the movable scroll fixing frame 1, the movable scroll 10 is guided by the arc chamfer and the outer edge of the profile groove 101 is expanded at the same time, so that the scroll fixing frame 1 is deformed, and the movable scroll 10 is clamped by the elastic force generated by the deformation of the V-shaped notch 102 and the profile groove 101, so that the movable scroll 10 does not fall out after the auxiliary tooling is inverted, and a plurality of countersunk holes 10 are provided on the A end surface of the movable scroll fixing frame 1. 3. The countersunk holes 103 are arranged in pairs for embedding the magnets 2. There are 6 groups and 12 countersunk holes 103 arranged in pairs. Two adjacent groups of countersunk holes 103 are spaced at an angle of 60°. The magnets embedded in the countersunk holes have the same polarity in the same direction. After the movable scroll 10 is installed, the top surface of the movable scroll profile 1001 fits with the A end surface. A plurality of threaded holes 104 are evenly distributed on the B end surface of the movable scroll fixing frame 1 for connecting the movable scroll release mechanism. A first through hole 105 for the movable scroll release mechanism to pass through is provided at the center of the B end surface of the movable scroll fixing frame 1. A positioning groove 107 is also provided on the outer peripheral surface of the movable scroll fixing frame 1. The positioning groove 107 is symmetrically arranged front and back for positioning on the detection device when detecting the number of wear-resistant rings 11 and bearings 12. A second through hole 106 is also provided on the B end surface of the movable scroll fixing frame 1 for riveting the guide column 3.

[0039] like Figure 1 , Figure 2 , Figure 6-Figure 8As shown, in this embodiment, the movable scroll release mechanism includes a support 6, a push plate 4, a push rod 7, a return spring 9 and a release handle 8. The support 6 is in an inverted T shape, with a first step hole 601 at the center and a plurality of second step holes 602 evenly distributed in the circumferential direction. The second step holes 602 are used to insert screws to connect the support 6 and the movable scroll fixing frame 1. The rod portion of the support is provided with a positioning surface 603, which is symmetrically arranged along the axial direction and is used to position the auxiliary tooling fixed with the movable scroll when it is installed on the assembly line bracket to prevent the auxiliary tooling from rotating and facilitate the insertion of the wear-resistant ring 11 and the bearing 12. The push plate 4 is arranged above the B end face of the movable scroll fixing frame 1, and its bottom is in contact with the B end face of the movable scroll fixing frame 1. After the movable scroll 10 is installed, the top of the push plate 4 contacts the bottom surface of the movable scroll profile 1001, and the push plate is opened along the axial direction. There is a positioning notch 401. When the push plate 4 is installed, the positioning notch 401 is aligned with the guide column 3 for assembly, and the movement of the push plate 4 is guided by the guide column 3; the push rod 7 is placed below the push plate 4, in the first through hole 105 of the movable scroll fixing frame and the first stepped hole 601 of the support, and is fastened to the push plate 4 by a screw 5. The push rod 7 is provided with a shoulder 701, which is axially limited by the step surface of the first stepped hole 601 of the support. The reset spring 9 is sleeved on the push rod 4 and placed in the large diameter hole of the first stepped hole 601 of the support. The two ends of the reset spring 9 respectively contact one end of the push rod shoulder 701 and the bottom of the movable scroll fixing frame 1, so that the push rod 7 and the push plate 4 are reset. The other end of the push rod shoulder 701 is also tightly matched with a release handle 8. Pressing the release handle 8 drives the push rod 7 and the push plate 4 to push the movable scroll 10 away from the auxiliary tooling.

[0040] Fig. 9 It shows the exploded view of assembling the movable scroll, wear ring and bearing using auxiliary tooling.

[0041] Fig.10 It shows the profile diagram of the movable scroll, which matches the profile groove on the movable scroll fixing frame.

[0042] In the present invention, the support and the release handle are made of non-metallic parts, thereby reducing the weight of the auxiliary tooling.

[0043] Working process of the present invention:

[0044] 1. With the profile end of the movable scroll facing downward, put the profile into the profile groove of the movable scroll fixing frame, and press it down gently. The movable scroll is guided by the arc chamfer on the upper end face of the movable scroll fixing frame. At the same time, the outer edge of the profile groove is expanded and deformed to make the movable scroll fall into the movable scroll fixing frame. The movable scroll is clamped by the elastic force of the profile groove and the V-shaped notch, so that the movable scroll will not fall out after being inverted.

[0045] 2. Fix the auxiliary tooling on the bracket of the assembly line through the positioning surface set on the support with the side of the tooling embedded with the magnetic block facing upward.

[0046] 3. Install the wear-resistant ring and the bearing in the corresponding holes of the movable scroll, and form a movable scroll assembly through adsorption by the magnetic block.

[0047] 4. Turn over the auxiliary tooling so that the subassembly is facing downward, and place it on the detection device through the positioning groove on the movable scroll fixing frame to check whether the number of wear-resistant rings and bearings is qualified;

[0048] 5. Move the qualified auxiliary tooling and subassembly to the top of the compressor body, align the subassembly in the installation direction and install it into the body. After the subassembly is in place, press the release handle and push the movable scroll away from the auxiliary tooling.

[0049] The present invention solves the problems of difficulty in assembling a movable scroll and easy missing of parts, and realizes controllable assembly of parts at this workstation; it can be assembled vertically, reducing the movement of workpieces, ensuring that upper and lower workstation fixtures remain consistent, and realizing the linkage of the production line; the entire operation process can shorten the assembly time by more than 4S, thereby improving the assembly efficiency of the entire machine.

[0050] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. An auxiliary tooling for assembling a movable scroll of a scroll compressor, characterized in that: It includes a movable scroll fixing frame, a magnetic block and a movable scroll release mechanism. The magnetic block is fixedly installed on the end surface A of the movable scroll fixing frame and is used to generate magnetic force to adsorb the wear-resistant ring and the bearing in the movable scroll into the corresponding mounting holes of the movable scroll. The movable scroll fixing frame is used to fix and clamp the movable scroll so that the movable scroll does not fall out after the auxiliary tooling is inverted. The movable scroll release mechanism is arranged below the movable scroll fixing frame and is fastened to the movable scroll fixing frame by screws. The middle part of the movable scroll release mechanism extends into the movable scroll fixing frame and is used to push the assembled movable scroll and separate it from the auxiliary tooling. A profile groove is provided in the circumferential direction of the movable scroll fixing frame, which cooperates with the movable scroll profile. A V-shaped notch is provided at the outer end of the profile groove along the axial direction. The V-shaped notch is connected to the profile groove. When the movable scroll is installed into the movable scroll fixing frame, the movable scroll expands the outer edge of the profile groove, causing the scroll fixing frame to deform. The movable scroll is clamped by the elastic force generated by the V-shaped notch and the deformation of the profile groove, so that the movable scroll does not fall out after the auxiliary tooling is inverted. A plurality of countersunk holes are provided on the end face A of the movable scroll fixing frame. The countersunk holes are arranged in pairs for embedding magnetic blocks. After the movable scroll is installed, the top surface of the movable scroll profile fits the end face A. A plurality of threaded holes are evenly distributed on the end face B of the movable scroll fixing frame for connecting the movable scroll release mechanism. A first through hole for the movable scroll release mechanism to pass through is provided at the center of the end face B of the movable scroll fixing frame.

2. The auxiliary tooling used for assembling the movable scroll of a scroll compressor according to claim 1, characterized in that: The movable scroll release mechanism includes a support, a push plate, a push rod, a reset spring and a release handle. The support is provided with a first stepped hole at the center, and a plurality of second stepped holes are evenly distributed circumferentially. The second stepped holes are used to insert screws to connect the support and the movable scroll fixing frame. The push plate is arranged above the end surface B of the movable scroll fixing frame, and its bottom is in contact with the end surface B of the movable scroll fixing frame. After the movable scroll is installed, the top of the push plate contacts the bottom surface of the movable scroll profile line. The push rod is placed below the push plate and the first stepped hole of the movable scroll fixing frame The through hole and the first stepped hole of the support are fastened with the push plate thread by screws, the push rod is provided with a shoulder, and is axially limited by the step surface of the first stepped hole of the support, the reset spring is sleeved on the push rod and placed in the large diameter hole of the first stepped hole of the support, the two ends of the reset spring respectively contact with one end of the push rod shoulder and the bottom of the movable scroll fixing frame, which is used for resetting the push rod and the push plate, and the other end of the push rod shoulder is also tightly fitted with a release handle, and pressing the release handle drives the push rod and the push plate to push the movable scroll away from the auxiliary tooling.

3. The auxiliary tooling used for assembling the movable scroll of a scroll compressor according to claim 1, characterized in that: The V-shaped notch is at an angle of 30°, and the two inclined surfaces of the notch are arranged symmetrically.

4. The auxiliary tooling used for assembling the movable scroll of a scroll compressor according to claim 1, characterized in that: The outer peripheral surface of the movable scroll fixing frame is also provided with positioning grooves, which are symmetrically arranged front and back and are used for positioning on the detection device when detecting the number of wear-resistant rings and bearings.

5. The auxiliary tooling used for assembling the movable scroll of a scroll compressor according to claim 2, characterized in that: A second through hole is also provided on the end surface of the movable scroll fixing frame B for riveting the guide column. A positioning notch is axially provided on the push plate. When the push plate is installed, the positioning notch is aligned with the guide column for assembly.

6. The auxiliary tooling used for assembling the movable scroll of a scroll compressor according to claim 2, characterized in that: The support is in an inverted T shape, and a positioning surface is provided on the rod portion of the support. The positioning surface is symmetrically arranged along the axial direction and is used to position the auxiliary tooling fixed with the movable scroll when it is installed on the assembly line bracket to prevent the auxiliary tooling from rotating and facilitate the insertion of the wear-resistant ring and the bearing.

7. The auxiliary tooling used for assembling the movable scroll of a scroll compressor according to claim 1, characterized in that: The countersunk holes arranged in pairs are provided in 6 groups, 12 in total, and the interval between two adjacent groups of countersunk holes is 60 degrees. The magnetic blocks are embedded in the 12 countersunk holes and have the same polarity in the same direction.

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