Pick-and-place device for assembling thrust bearing race of compressor

Abstract

The utility model discloses a pick-and-place device for assembling a thrust bearing race of a compressor, a lower gasket, a plane roller bearing, an upper gasket, a disc spring and a clamp spring can be taken and placed at a time through a pick-and-place structure, and during pick-and-place, a clamping short column of a clamping part can effectively clamp the clamp spring, so that the clamp spring is prevented from being damaged. And meanwhile, the positioning part can ensure that the posture is high at one end and low at the other end. Press fitting can be completed through downward pressing of the taking and placing structure after placement, a pressure sensor is embedded in the lower surface of the positioning part, the assembling gap and stability of the bearing are ensured, thickness detection is conducted before clamping, effective assembling is ensured, and the problem that the thickness does not meet the requirement, and consequently a shaft seal fails is solved.

Description

Technical Field

[0001] The utility model relates to a technical field, specifically a taking and placing device for assembling a compressor thrust bearing race. Background Art

[0002] The automobile air conditioning compressor is the heart of the automobile air conditioning refrigeration system, which plays the role of compressing and transporting refrigerant vapor. According to the different internal working modes, the air conditioning compressor is divided into: crank-connecting rod type (consisting of crank, connecting rod, piston, intake and exhaust valves, etc.); rocker plate type compressor (consisting of main shaft, bevel gear, inclined plate, connecting rod, piston, intake and exhaust valves and rocker plate, etc.); inclined plate type compressor (consisting of main shaft, inclined plate, cylinder, piston, intake and exhaust valves, etc.). There are currently three types.

[0003] Among them, the variable displacement swash plate compressor generally includes a clutch assembly, a housing and a movement arranged in the housing. The movement is composed of a piston, a main shaft, a swash plate and a drive plate. However, the main shaft thrust bearing seat ring includes a lower gasket, a flat roller bearing, an upper gasket, a disc spring and a retaining spring. Its function is to provide stable support for the main shaft, and to bear and disperse the axial load to ensure the normal operation of the compressor.

[0004] The installation of existing thrust bearing seat rings is generally performed manually, with the lower gasket, flat roller bearing, upper gasket, and disc spring being placed in sequence, and finally the retaining spring being clamped in the groove on the inner hole wall of the cylinder body. The operation efficiency is slow, especially when installing the retaining spring, the clamping end of the retaining spring needs to be clamped so that the retaining spring is smaller than the size of the inner hole of the cylinder body before being installed. Due to the presence of the disc spring, manual installation cannot guarantee that the retaining spring can be effectively installed, and the phenomenon of "virtual installation" is prone to occur. Summary of the invention

[0005] In order to solve the above technical problems, the inventors have obtained the technical solution of the utility model through practice and summary. The utility model adopts the following technical solution:

[0006] A compressor thrust bearing race assembly pick-and-place device, comprising:

[0007] A horizontal linear module one and a vertical linear module one;

[0008] A vertical linear module 1 is installed on the horizontal linear module 1;

[0009] A pick-and-place structure is installed on the vertical linear module;

[0010] The pick-and-place structure includes a fixing portion, a clamping portion, an external supporting portion and a positioning portion;

[0011] The fixing part is installed on the vertical linear module;

[0012] The clamping part, the positioning part and the external supporting part are all installed on the fixing part;

[0013] The clamping part and the positioning part are located on both sides of the outer support part.

[0014] The clamping part is used for taking and placing the retaining ring; the external support part is used for externally supporting and fixing the plane bearing; and the positioning part is used for keeping the retaining ring in a flat state when the clamping part clamps the retaining ring.

[0015] Preferably, the clamping portion comprises two clamping rods arranged in parallel, and a clamping short column is arranged at the bottom, and the distance between the two clamping short columns can be selectively adjusted.

[0016] Preferably, the clamping rod is provided with a waist-shaped hole;

[0017] The fixing part is provided with two guide rails extending downwards, and a horizontal extension rod is provided at the bottom of the guide rails, and a through pin is provided on the horizontal extension rod and inserted into the waist-shaped hole;

[0018] The free end of the clamping rod slides vertically in the guide rail, the free end of the clamping rod is connected with a moving plate through a hinged rod, and the moving plate is slidably mounted on the fixing part.

[0019] Preferably, the outer support portion comprises a pneumatic clamp, and the movable plate is mounted on the clamping end of the pneumatic clamp.

[0020] Preferably, a side of the positioning portion facing away from the clamping portion is provided with an arcuate surface, and the arcuate surface is adapted to the cylinder body hole wall.

[0021] Preferably, a step structure protruding outward is provided at the bottom of the clamping end of the pneumatic clamp, and an arc surface adapted to the side wall of the inner hole of the lower gasket is provided on the step structure.

[0022] Preferably, the picking and placing device also includes a thickness detection mechanism, which includes a lifting cylinder, a moving frame, a detection platform and a displacement sensor. The moving frame is installed on the end of the piston rod of the lifting cylinder, and the detection platform is installed on the moving frame. The detection platform and the moving frame are slidably matched. A spring is arranged between the moving frame and the detection platform. The displacement sensor is installed on the moving frame to detect the displacement of the detection platform relative to the moving frame.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] The present invention can take and take the lower gasket, plane roller bearing, upper gasket, disc spring and retaining spring at one time through the pick-and-place structure, and when taking and placing, the clamping short column of the clamping part can effectively clamp the retaining spring, and the positioning part can ensure that its posture will not have the problem of one end being higher than the other end. After placement, the press-fitting can be completed together by pressing down through the pick-and-place structure. The lower surface of the positioning part is embedded with a pressure sensor to ensure the assembly clearance and stability of the bearing. The thickness detection is also performed before clamping to ensure effective assembly, and the problem of shaft seal failure caused by thickness not meeting the requirements is prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a side view of the pick-and-place structure of the utility model;

[0027] Figure 3 It is a structural diagram of the positioning part of the utility model;

[0028] Figure 4 This is a connection diagram of the clamping part and the outer supporting part of the utility model;

[0029] Figure 5 This is a connection diagram of the clamping part and the guide rail of the utility model;

[0030] Figure 6 It is a position distribution diagram of the thickness detection mechanism and the pick-and-place structure of the utility model;

[0031] Figure 7 It is a schematic diagram of the overall structure of the thickness detection mechanism of the utility model. DETAILED DESCRIPTION

[0032] 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.

[0033] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0034] Embodiment 1, as Figure 1 Place Figure 5 As shown, a compressor thrust bearing race assembly pick-and-place device comprises:

[0035] A horizontal linear module 31 and a vertical linear module 32;

[0036] A vertical linear module 32 is installed on the horizontal linear module 31;

[0037] A pick-and-place structure 33 is installed on the vertical linear module 1 32;

[0038] The pick-and-place structure 33 includes a fixing portion 331 , a clamping portion 332 , an external supporting portion 333 and a positioning portion 334 ;

[0039] The fixing portion 331 is installed on the vertical linear module;

[0040] The clamping portion 332 , the positioning portion 334 and the outer supporting portion 333 are all mounted on the fixing portion 331 ;

[0041] The clamping portion 332 and the positioning portion 334 are respectively located on two sides of the outer supporting portion 333.

[0042] The clamping portion 332 is used for taking and placing the retaining ring; the external support portion 333 is used for externally supporting and fixing the plane bearing; and the positioning portion 334 is used for keeping the retaining ring in a flat state when the clamping portion 332 clamps the retaining ring.

[0043] The clamping portion 332 includes two clamping rods 336 arranged in parallel, and a clamping short column 335 is arranged at the bottom. The distance between the two clamping short columns 335 can be selectively adjusted.

[0044] The clamping rod 336 is provided with a waist-shaped hole 337;

[0045] The fixing portion 331 is provided with two guide rails 338 extending downwards, and a horizontal extension rod 339 is provided at the bottom of the guide rail 338. The horizontal extension rod 339 is provided with a through pin 3310 inserted into the waist-shaped hole 337;

[0046] The free end of the clamping rod 336 slides vertically in the guide rail 338 . The free end of the clamping rod 336 is connected to a moving plate 3311 via a hinge rod. The moving plate 3311 is slidably mounted on the fixing portion 331 .

[0047] The outer support portion 333 includes a pneumatic clamp, and the movable plate 3311 is installed on the clamping end of the pneumatic clamp.

[0048] The positioning portion 334 is provided with an arc surface on a side facing away from the clamping portion 332 , and the arc surface is adapted to the cylinder hole wall.

[0049] The bottom of the clamping end of the pneumatic clamp is provided with a step structure protruding outward, and the step structure is provided with an arc surface adapted to the side wall of the inner hole of the lower gasket.

[0050] The horizontal position and vertical height of the pick-and-place structure 33 are adjusted by a horizontal linear module 31 and a vertical linear module 32. When the pick-and-place structure 33 clamps the stacked parts (lower gasket, plane bearing, upper gasket, disc spring and retaining spring assembly), the bottom surface of the positioning portion 334 is abutted against the upper surface of the stacked parts (lower gasket, plane bearing, upper gasket, disc spring and retaining spring assembly). Then, the clamping portion 332 and the external support portion 333 act simultaneously, and the clamping portion 332 is used to bring the clamping holes of the retaining spring closer to each other, and the external support portion 333 supports the inner ring of the lower gasket, thereby achieving clamping and fixing, and then directly transporting it into the cylinder body and completing the press-fitting, without the need for a separate press-fitting mechanism, making the overall structure more compact.

[0051] The horizontal linear module 31 adjusts the horizontal position of the pick-and-place structure 33, and is located above the front thickness detection module 23. The vertical linear module 32 adjusts the height position of the pick-and-place structure 33. The bottom surface of the positioning portion 334 is pressed against the upper surface of the stacking member (lower gasket, plane bearing, upper gasket, disc spring and retaining spring assembly). At this time, the clamping short column 335 is located in the hole of the retaining spring, and the clamping end of the pneumatic clamp is inserted into the interior of the stacking member (lower gasket, plane bearing, upper gasket, disc spring and retaining spring assembly).

[0052] The pneumatic clamp works, and the clamping end supports the inner ring of the lower gasket of the fixed stack (lower gasket, plane bearing, upper gasket, disc spring and retaining spring assembly), and at the same time drives the outer row of the moving plate 3311 to move the clamping short columns 335 closer to each other to clamp the retaining spring into a state smaller than the inner hole of the cylinder body;

[0053] The vertical linear module 1 32 adjusts the height position of the pick-and-place structure 33 to the initial height again, and the horizontal linear module 1 31 adjusts the horizontal position of the pick-and-place structure 33 to be located above the cylinder body. The vertical linear module 1 32 adjusts the height position of the pick-and-place structure 33 to the inside of the cylinder body, and the clamping end of the pneumatic clamp drives the clamping short column 335 to loosen the retaining spring and the lower gasket, and the retaining spring is clamped in the groove on the inner wall of the cylinder body hole;

[0054] The vertical linear module 1 32 adjusts the height position of the pick-and-place structure 33 to the initial height again, and the horizontal linear module 1 31 adjusts the horizontal position of the pick-and-place structure 33 to reset to the initial state.

[0055] Embodiment 2, as Figure 6 and Figure 7As shown, the following improvements are made on the basis of Example 1: the pick-and-place device also includes a thickness detection mechanism, including a lifting cylinder 131, a moving frame 132, a detection platform 133, a displacement sensor 134, and a detection base 136. The detection base 136 is provided with a detection groove, the piston rod end of the lifting cylinder 131 is installed with a moving frame 132, the moving frame 132 is installed with a detection platform 133, and the detection platform 133 and the moving frame 132 are slidably matched, a spring 135 is provided between the moving frame 132 and the detection platform 133, and the displacement sensor 134 is installed on the moving frame 132 for detecting the displacement of the detection platform 133 relative to the moving frame 132. Both ends of the moving frame 132 are vertically slidably installed on the frame, and the lifting cylinder 131 is fixed on the frame, and the frame is not drawn in the figure.

[0056] The movable frame 132 is driven downward to a set elevation by the lifting cylinder 131. The set elevation satisfies the requirement that the detection platform 133 just contacts the bottom surface of the detection groove when there is no material in the detection groove. Since there are materials (lower gasket, plane bearing, upper gasket, disc spring and retaining spring assembly) installed in the detection groove at this time, the detection platform 133 will move upward relative to the movable frame 132 and compress the spring 135. The displacement change of the detection platform 133 is detected by the displacement sensor 134, which is the thickness value of the material.

[0057] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. Equivalent replacement or change based on the technical solution and inventive concept of the utility model should be included in the protection scope of the utility model.

Claims

1. A compressor thrust bearing race assembly pick-up and placement device, characterized in that: include: A horizontal linear module (31) and a vertical linear module (32); A vertical linear module (32) is installed on the horizontal linear module (31); A pick-and-place structure (33) is installed on the vertical linear module (32); The pick-and-place structure (33) comprises a fixing portion (331), a clamping portion (332), an external supporting portion (333) and a positioning portion (334); The fixing part (331) is installed on the vertical linear module; The clamping portion (332), the positioning portion (334) and the external supporting portion (333) are all mounted on the fixing portion (331); The clamping portion (332) and the positioning portion (334) are respectively located on two sides of the outer supporting portion (333). The clamping portion (332) is used for taking and placing the retaining ring; the external support portion (333) is used for externally supporting and fixing the plane bearing; and the positioning portion (334) is used for maintaining a flat state when the clamping portion (332) clamps the retaining ring.

2. A compressor thrust bearing race assembly pick-up and placement device according to claim 1, characterized in that: The clamping portion (332) comprises two clamping rods (336) arranged in parallel, and a clamping short column (335) is arranged at the bottom, and the distance between the two clamping short columns (335) can be selectively adjusted.

3. A compressor thrust bearing race assembly pick-up and placement device according to claim 2, characterized in that: The clamping rod (336) is provided with a waist-shaped hole (337); The fixing portion (331) is provided with two guide rails (338) extending downwards, and a horizontal extension rod (339) is provided at the bottom of the guide rail (338), and a through pin (3310) is provided on the horizontal extension rod (339) and inserted into the waist-shaped hole (337); The free end of the clamping rod (336) slides vertically in the guide rail (338), and the free end of the clamping rod (336) is connected to a moving plate (3311) via a hinge rod, and the moving plate (3311) is slidably mounted on the fixing portion (331).

4. A compressor thrust bearing race assembly pick-up and placement device according to claim 3, characterized in that: The outer support portion (333) comprises a pneumatic clamping jaw, and the movable plate (3311) is mounted on the clamping end of the pneumatic clamping jaw.

5. A compressor thrust bearing race assembly pick-up and placement device according to claim 3, characterized in that: The positioning portion (334) is provided with an arcuate surface on a side facing away from the clamping portion (332), and the arcuate surface is adapted to the cylinder body hole wall.

6. A compressor thrust bearing race assembly pick-up and placement device according to claim 4, characterized in that: The bottom of the clamping end of the pneumatic clamp is provided with a step structure protruding outward, and the step structure is provided with an arc surface adapted to the side wall of the inner hole of the lower gasket.

7. A compressor thrust bearing race assembly pick-up and placement device according to claim 4, characterized in that: The pick-and-place device further comprises a thickness detection mechanism, which comprises a lifting cylinder (131), a moving frame (132), a detection platform (133) and a displacement sensor (134); the moving frame (132) is mounted on the piston rod end of the lifting cylinder (131); the detection platform (133) is mounted on the moving frame (132) and the detection platform (133) and the moving frame (132) are slidably matched; a spring (135) is arranged between the moving frame (132) and the detection platform (133); and the displacement sensor (134) is mounted on the moving frame (132) and is used to detect the displacement of the detection platform (133) relative to the moving frame (132).

Images