Machining device and machining method for hollow piston of automobile air conditioner compressor

Abstract

The invention provides an automobile air conditioner compressor hollow piston machining device and method, the automobile air conditioner compressor hollow piston machining device comprises a base, the base is connected with a moving device, a clamping rotating mechanism and a welding device, the welding device is connected with a buffering mechanism, and the buffering mechanism comprises a sleeve, a first spring, a sliding rod and a pushing block; the moving devices are connected with a preheating device, the preheating device comprises a first telescopic piece, a second spring and two moving blocks, the two moving blocks are connected through a supporting block, the supporting block is connected with a rebounding assembly, and the rebounding assembly is connected with heating equipment. A hollow piston is heated through heating equipment, a worm is driven to rotate through a third motor, so that a worm gear, a clamping plate and the hollow piston are driven to rotate, uniform preheating is achieved, a fixed plate and welding equipment are driven to descend through a pneumatic cylinder, a push block extrudes a movable block to enable the movable block to move, and therefore a fixed frame and the heating equipment are separated from an insertion hole; and the welding equipment continuously descends to enter the insertion hole to be in contact with the hollow piston to realize welding.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of automobile air-conditioning compressors, and in particular to a processing device and a processing method for a hollow piston of an automobile air-conditioning compressor. 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. The compressor is divided into two types: fixed displacement and variable displacement. According to different working principles, the air-conditioning compressor can be divided into fixed displacement compressor and variable displacement compressor. The hollow piston is indispensable in the compressor, so a processing device is needed when making the hollow piston.

[0003] In the prior art, when processing hollow pistons, parts are manufactured and then welded. However, manual welding may result in errors, and the hollow piston is usually exposed to the air during preheating, which makes it difficult to preheat the hollow piston quickly and the preheating is insufficient, resulting in poor welding quality. Therefore, the present invention provides a hollow piston processing device and method for an automobile air-conditioning compressor to solve the above problems. Summary of the invention

[0004] The present invention mainly provides a hollow piston processing device and a processing method for an automobile air-conditioning compressor to solve the technical problems raised in the above-mentioned background technology.

[0005] The technical solution adopted by the present invention to solve the above technical problems is: a hollow piston processing device for an automobile air-conditioning compressor, comprising a base, the top of the base is connected to a moving device, the top of the base is connected to a clamping and rotating mechanism, the top of the base is connected to a welding device, and the two sides of the bottom of the welding device are connected to a buffer mechanism, the buffer mechanism comprises a sleeve connected to the bottom of the welding device, a first spring connected to the top of the sleeve, a sliding rod connected to the bottom of the first spring and a push block connected to the bottom of the sliding rod, and the top of the sliding rod is slidably connected to the sleeve;

[0006] A preheating device is connected to one side of the top of the moving device, and the preheating device includes a first telescopic member connected to both sides of the top of the moving device, a second spring sleeved on the first telescopic member and a moving block connected to one side of the first telescopic member, the moving block cooperates with the push block, the two moving blocks are connected through a supporting block, the bottom of the supporting block is connected to a rebound component, and the bottom of the rebound component is connected to a heating device.

[0007] In the present invention, the first spring allows the push block to have space to rise and reset, the second spring allows the moving block to reset, the push block descends to squeeze the moving block, and the moving block moves, and the heating device heats the hollow piston to achieve preheating.

[0008] Furthermore, the moving device includes a first motor connected to one side of the top of the base, a one-way screw connected to the driving end of the first motor, and a placement table connected to one side of the one-way screw, an arc groove is provided on one side of the placement table, and the arc of the arc groove is a major arc.

[0009] In the present invention, the rotation of the one-way screw rod facilitates the movement of the placement table, which is convenient for loading and unloading the hollow piston.

[0010] Furthermore, a groove is provided on one side of the placing table, and a plug hole is provided on one side of the top of the placing table, and the hole body of the plug hole is connected to the groove body of the groove.

[0011] In the present invention, the groove prevents the raised portion of the hollow piston at the welding position from colliding with the placement table, thereby preventing the hollow piston from being damaged.

[0012] Furthermore, a C-shaped frame is fixed on the top of the base, and the top of the C-shaped frame is connected to a welding device. The welding device includes a pneumatic cylinder connected to the top of the C-shaped frame and a fixed plate connected to the driving end of the pneumatic cylinder. Sleeves are connected to both sides of the fixed plate. The bottom of the fixed plate is connected to the welding equipment, and the welding equipment cooperates with the socket.

[0013] In the present invention, the pneumatic cylinder facilitates the welding equipment to enter the insertion hole to contact the hollow piston, thereby facilitating the welding of the hollow piston.

[0014] Furthermore, the clamping and rotating mechanism includes a second motor connected to one side of the bottom of the C-shaped frame, a bidirectional screw connected to the driving end of the second motor, a support plate connected to both sides of the bidirectional screw and a baffle connected to one side of the support plate, the support plate is rotatably connected to a splint on the inner side, and one side of the splint is connected to a rotating component.

[0015] In the present invention, the rotation of the bidirectional screw rod facilitates the two support plates and the clamping plate to move in opposite directions, so that the clamping plate fixes the hollow piston.

[0016] Furthermore, the rotating assembly includes a worm wheel connected to one side of the clamping plate, a worm meshingly connected to the bottom of the worm wheel and a third motor connected to one side of the worm, and one side of the third motor is connected to the clamping plate.

[0017] In the present invention, the worm wheel and the worm are cooperated to form a self-locking, thereby preventing the clamping plate from rotating freely. The rotation of the clamping plate facilitates the rotation of the hollow piston, and facilitates the welding equipment to fully weld the hollow piston.

[0018] Furthermore, the rebound assembly includes a second telescopic part connected to both sides of the bottom of the support block, a third spring sleeved on the second telescopic part and a fixed frame connected to the bottom of the second telescopic part, the bottom of the fixed frame is connected to a heating device, and a first bevel is provided on one side of the bottom of the fixed frame.

[0019] In the present invention, the third spring allows the fixing frame to have space to rise and facilitates the fixing frame to be reset.

[0020] Furthermore, a second bevel is provided on one side of the bottom of the push block;

[0021] A third bevel is provided on one side of the top of the moving block, and the third bevel matches the second bevel.

[0022] In the present invention, the third oblique side is parallel to the second oblique side, and the third oblique side cooperates with the second oblique side to facilitate the pushing block to squeeze the moving block.

[0023] Furthermore, a minor arc surface is provided on one side of the baffle, positioning grooves are provided on both sides of one baffle, and positioning rods are fixed on both sides of the other baffle, and the positioning rods are slidably connected to the groove body of the positioning groove.

[0024] In the present invention, the positioning rod cooperates with the positioning groove to improve the stability of the baffle and can align the two baffles.

[0025] According to the above technical solution of a hollow piston processing device for an automobile air-conditioning compressor, a method for processing a hollow piston for an automobile air-conditioning compressor is also provided, comprising the following steps:

[0026] S1, firstly place the two parts of the hollow piston on the two ends of the placing table, rotate the one-way screw to move the placing table and make it contact the baffle, then rotate the two-way screw to move the support plate, so that the clamping plate fixes the parts of the hollow piston, and at this time, the two baffles are in contact, so that the connection between the two parts of the hollow piston is in a sealed space;

[0027] S2, heating the two parts of the hollow piston by a heating device;

[0028] S3, after preheating is completed, the welding equipment and the push block are driven down by the pneumatic cylinder, and the push block squeezes the moving block to move the moving block, so that the heating equipment is separated from the socket, and then the push block is kept stationary by the first spring, and the welding equipment continues to descend into the socket and contacts the two parts of the hollow piston to achieve welding.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] The present invention drives the one-way screw to rotate by the first motor, thereby moving the placement table and contacting the baffle plate, and drives the two-way screw to rotate by the second motor, thereby causing the two support plates to move in opposite directions, and then the clamping plate positions and fixes the hollow piston, and the hollow piston is heated by the heating device, and the worm is driven to rotate by the third motor, thereby driving the worm wheel and the clamping plate to rotate, so as to facilitate the rotation of the hollow piston and achieve uniform preheating, and drive the fixed plate and the welding device to descend by the pneumatic cylinder, and the push block squeezes the moving block to move the moving block, thereby causing the fixed frame and the heating device to detach from the socket, and then the push block is kept stationary by the first spring, and the welding device continues to descend into the socket and contacts the two parts of the hollow piston, and welding is performed by the welding device, and at the same time, the hollow piston is rotated by the clamping plate to achieve comprehensive welding, which not only improves the welding accuracy and work efficiency, but also can quickly and evenly preheat the hollow piston, thereby improving the welding quality.

[0031] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0034] Figure 3 A cross-sectional view of the present invention as a whole;

[0035] Figure 4 A partial cross-sectional view of the present invention as a whole;

[0036] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0037] Figure 6 It is a cross-sectional view of the present invention as a whole.

[0038] In the figure: 10, base; 20, moving device; 21, first motor; 22, one-way screw; 23, placing table; 231, groove; 232, jack; 30, welding device; 31, pneumatic cylinder; 32, fixing plate; 33, welding equipment; 40, buffer mechanism; 41, sleeve; 42, first spring; 43, slide bar; 44, push block; 441, second bevel; 50, clamping and rotating mechanism; 51, second motor; 52, two-way screw; 53, support plate; 54. baffle; 541. positioning groove; 542. positioning rod; 55. clamping plate; 56. rotating assembly; 561. third motor; 562. worm; 563. worm wheel; 60. preheating device; 61. first telescopic member; 62. second spring; 63. moving block; 631. third bevel; 64. supporting block; 65. rebound assembly; 651. second telescopic member; 652. third spring; 653. fixed frame; 6531. first bevel; 66. heating device. DETAILED DESCRIPTION

[0039] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0040] It should be noted that when an element is referred to as being "fixed on" 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 in this article are for illustrative purposes only.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. 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.

[0042] For examples, please refer to the attached Figure 1-6A hollow piston processing device for an automobile air-conditioning compressor includes a base 10, a moving device 20 is connected to the top of the base 10, a clamping and rotating mechanism 50 is connected to the top of the base 10, a welding device 30 is connected to the top of the base 10, and buffer mechanisms 40 are connected to both sides of the bottom of the welding device 30. The buffer mechanism 40 includes a sleeve 41 connected to the bottom of the welding device 30, a first spring 42 connected to the top of the sleeve 41, a slide rod 43 connected to the bottom of the first spring 42, and a push block 44 connected to the bottom of the slide rod 43, and the top of the slide rod 43 is slidably connected to the sleeve 41;

[0043] The preheating device 60 is connected to one side of the top of the moving device 20, and the preheating device 60 includes a first telescopic member 61 connected to both sides of the top of the moving device 20, a second spring 62 sleeved on the first telescopic member 61 and a moving block 63 connected to one side of the first telescopic member 61, the moving block 63 cooperates with the push block 44, and the two moving blocks 63 are connected by a supporting block 64, the bottom of the supporting block 64 is connected to a rebound component 65, and the bottom of the rebound component 65 is connected to a heating device 66.

[0044] It should be noted that, in the present embodiment, the first spring 42 facilitates the push block 44 to have space to rise, and can reset the push block 44, and the movable block 63 is reset by the elastic force of the second spring 62, and the push block 44 descends to squeeze the movable block 63 to move the movable block 63, thereby moving the heating device 66, and the heating device 66 facilitates heating the hollow piston to achieve preheating.

[0045] For examples, please refer to the attached Figure 2-3 The moving device 20 includes a first motor 21 connected to one side of the top of the base 10, a one-way screw 22 connected to the driving end of the first motor 21, and a placement table 23 connected to one side of the one-way screw 22, and an arc groove is provided on one side of the placement table 23, and the arc of the arc groove is a major arc.

[0046] It should be noted that, in this embodiment, the one-way screw 22 is driven to rotate by the first motor 21, so that the placement table 23 moves, which is convenient for loading and unloading of the hollow piston. The diameter of the arc groove is the same as the outer diameter of the hollow piston.

[0047] For examples, please refer to the attached Figure 3-4 A groove 231 is provided on one side of the placing platform 23 , and a plug hole 232 is provided on one side of the top of the placing platform 23 , and the hole body of the plug hole 232 is connected to the groove body of the groove 231 .

[0048] It should be noted that, in this embodiment, the groove 231 prevents the raised part of the hollow piston welding from colliding with the placement table 23, thereby avoiding damage to the hollow piston. The socket 232 facilitates the heating device 66 to heat the hollow piston and facilitates the welding device 30 to insert and weld the hollow piston.

[0049] For examples, please refer to the attached Figure 3 A C-shaped frame is fixed on the top of the base 10, and the top of the C-shaped frame is connected to a welding device 30. The welding device 30 includes a pneumatic cylinder 31 connected to the top of the C-shaped frame and a fixing plate 32 connected to the driving end of the pneumatic cylinder 31. Sleeves 41 are connected to both sides of the fixing plate 32. The bottom of the fixing plate 32 is connected to a welding device 33, and the welding device 33 cooperates with the socket 232.

[0050] It should be noted that, in the present embodiment, the pneumatic cylinder 31 drives the fixing plate 32 and the welding device 33 to descend, so that the welding device 33 enters the insertion hole 232 to contact the hollow piston, and then welds the hollow piston.

[0051] For examples, please refer to the attached Figure 2-3 The clamping and rotating mechanism 50 includes a second motor 51 connected to one side of the bottom of the C-frame, a bidirectional screw rod 52 connected to the driving end of the second motor 51, a support plate 53 connected to both sides of the bidirectional screw rod 52 and a baffle plate 54 connected to one side of the support plate 53, the support plate 53 is rotatably connected to the inner side of the clamping plate 55, and one side of the clamping plate 55 is connected to a rotating component 56.

[0052] It should be noted that, in this embodiment, the bidirectional screw 52 is driven to rotate by the second motor 51, so that the two support plates 53 and the clamping plate 55 move in opposite directions, and then the clamping plate 55 fixes the hollow piston, and the baffle 54 is convenient for limiting the position of the placement table 23.

[0053] For examples, please refer to the attached Figure 2 The rotating assembly 56 includes a worm wheel 563 connected to one side of the clamping plate 55, a worm 562 meshingly connected to the bottom of the worm wheel 563 and a third motor 561 connected to one side of the worm 562, and one side of the third motor 561 is connected to the clamping plate 55.

[0054] It should be noted that, in this embodiment, the worm wheel 563 and the worm 562 cooperate to form a self-locking function to prevent the clamping plate 55 from rotating freely. The worm 562 is driven to rotate by the third motor 561, thereby driving the worm wheel 563 and the clamping plate 55 to rotate, thereby facilitating the rotation of the hollow piston and facilitating the welding equipment 33 to fully weld the hollow piston.

[0055] For examples, please refer to the attached Figure 5 The rebound component 65 includes a second telescopic member 651 connected to both sides of the bottom of the support block 64, a third spring 652 sleeved on the second telescopic member 651 and a fixed frame 653 connected to the bottom of the second telescopic member 651, the bottom of the fixed frame 653 is connected to the heating device 66, and a first bevel 6531 is provided on one side of the bottom of the fixed frame 653.

[0056] It should be noted that, in this embodiment, the third spring 652 allows the fixed frame 653 to have space to rise, and can reset the fixed frame 653, so that the heating device 66 enters the insertion hole 232, thereby sealing the insertion hole 232, and the first bevel 6531 facilitates the fixed frame 653 to press the placement table 23 when moving, so as to facilitate the rise of the fixed frame 653.

[0057] For examples, please refer to the attached Figure 3 , a second bevel 441 is provided on one side of the bottom of the push block 44;

[0058] A third bevel 631 is disposed on one side of the top of the moving block 63 , and the third bevel 631 matches with the second bevel 441 .

[0059] It should be noted that, in this embodiment, the third bevel 631 is parallel to the second bevel 441 , and the third bevel 631 cooperates with the second bevel 441 to facilitate the push block 44 to press the moving block 63 , thereby moving the moving block 63 .

[0060] For examples, please refer to the attached Figure 6 One side of the baffle plate 54 is provided with a inferior arc surface, and both sides of one of the baffle plates 54 are provided with positioning grooves 541, and both sides of the other baffle plate 54 are fixed with positioning rods 542, and the positioning rods 542 are slidably connected with the groove body of the positioning groove 541.

[0061] It should be noted that, in this embodiment, the positioning rod 542 cooperates with the positioning groove 541 to improve the stability of the baffle 54 and can align the two baffles 54 to prevent the baffles 54 from bending or being damaged.

[0062] For examples, please refer to the attached Figure 1-6 According to the above technical solution of a hollow piston processing device for an automobile air-conditioning compressor, a method for processing a hollow piston for an automobile air-conditioning compressor is also provided, comprising the following steps:

[0063] S1, firstly place the two parts of the hollow piston on the two ends of the placing platform 23, rotate the one-way screw 22 to move the placing platform 23 and make it contact the baffle 54, then rotate the two-way screw 52 to move the support plate 53, so that the clamping plate 55 fixes the parts of the hollow piston, and at this time, the two baffles 54 are in contact, so that the connection between the two parts of the hollow piston is in a sealed space;

[0064] S2, heating the two parts of the hollow piston by a heating device 66;

[0065] S3, after preheating is completed, the pneumatic cylinder 31 drives the welding device 33 and the push block 44 to descend, and the push block 44 squeezes the movable block 63 to move the movable block 63, so that the heating device 66 is disengaged from the socket 232, and then the push block 44 is kept stationary by the first spring 42, and the welding device 33 continues to descend into the socket 232 and contacts the two parts of the hollow piston to achieve welding.

[0066] The specific operation method of the present invention is as follows: first, insert the two parts of the hollow piston into the two ends of the placement table 23, and drive the one-way screw 22 to rotate by the first motor 21, so that the placement table 23 moves, so that the placement table 23 contacts the baffle 54, and then drive the two-way screw 52 to rotate by the second motor 51, so that the two support plates 53 and the clamping plate 55 move in opposite directions, and then the clamping plate 55 positions and fixes the two parts of the hollow piston, and the baffle 54, the placement table 23, the fixing frame 653 and the two parts of the hollow piston cooperate to form a closed space;

[0067] Then, the two parts of the hollow piston are heated by the heating device 66. At the same time, the worm 562 is driven to rotate by the third motor 561, thereby driving the worm wheel 563 and the clamping plate 55 to rotate, so as to make the hollow piston rotate and achieve uniform preheating;

[0068] Then, the fixed plate 32 and the welding device 33 are driven to descend by the pneumatic cylinder 31. During the descent process, the push block 44 first squeezes the moving block 63 to move the moving block 63, thereby making the fixed frame 653 and the heating device 66 detach from the socket 232. Then, the push block 44 is kept stationary by the first spring 42, and the welding device 33 continues to descend into the socket 232 and contacts the two parts of the hollow piston.

[0069] The welding is performed by the welding device 33, and at the same time the hollow piston is rotated by the clamping plate 55 to achieve full welding.

[0070] The above is an exemplary description of the present invention in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A hollow piston processing device for an automobile air-conditioning compressor, comprising a base (10), characterized in that: The top of the base (10) is connected to a moving device (20), the top of the base (10) is connected to a clamping and rotating mechanism (50), the top of the base (10) is connected to a welding device (30), and the bottom of the welding device (30) is connected to a buffer mechanism (40) on both sides, the buffer mechanism (40) comprises a sleeve (41) connected to the bottom of the welding device (30), a first spring (42) connected to the top of the sleeve (41), a sliding rod (43) connected to the bottom of the first spring (42) and a push block (44) connected to the bottom of the sliding rod (43), and the top of the sliding rod (43) is slidably connected to the sleeve (41); The top side of the moving device (20) is connected to a preheating device (60), and the preheating device (60) comprises a first telescopic member (61) connected to both sides of the top of the moving device (20), a second spring (62) sleeved on the first telescopic member (61), and a moving block (63) connected to one side of the first telescopic member (61), the moving block (63) cooperates with the push block (44), the two moving blocks (63) are connected through a supporting block (64), the bottom of the supporting block (64) is connected to a rebound component (65), and the bottom of the rebound component (65) is connected to a heating device (66).

2. The hollow piston processing device for automobile air-conditioning compressor according to claim 1 is characterized in that: The moving device (20) comprises a first motor (21) connected to one side of the top of the base (10), a one-way screw (22) connected to the driving end of the first motor (21), and a placement table (23) connected to one side of the one-way screw (22), wherein one side of the placement table (23) is provided with an arc groove, and the arc of the arc groove is a major arc.

3. The hollow piston processing device for automobile air-conditioning compressor according to claim 2 is characterized in that: A groove (231) is provided on one side of the placement platform (23), and a plug hole (232) is provided on one side of the top of the placement platform (23), wherein the hole body of the plug hole (232) is connected to the groove body of the groove (231).

4. The hollow piston processing device for automobile air-conditioning compressor according to claim 1 is characterized in that: A C-shaped frame is fixed on the top of the base (10), and a welding device (30) is connected to the top of the C-shaped frame. The welding device (30) comprises a pneumatic cylinder (31) connected to the top of the C-shaped frame and a fixing plate (32) connected to the driving end of the pneumatic cylinder (31). Sleeves (41) are connected to both sides of the fixing plate (32). The bottom of the fixing plate (32) is connected to a welding device (33), and the welding device (33) cooperates with the socket (232).

5. The hollow piston processing device for automobile air-conditioning compressor according to claim 4 is characterized in that: The clamping and rotating mechanism (50) comprises a second motor (51) connected to one side of the bottom of the C-shaped frame, a bidirectional screw rod (52) connected to the driving end of the second motor (51), a support plate (53) connected to both sides of the bidirectional screw rod (52) and a baffle plate (54) connected to one side of the support plate (53), the inner side of the support plate (53) is rotatably connected to a clamp plate (55), and one side of the clamp plate (55) is connected to a rotating component (56).

6. The hollow piston processing device for automobile air-conditioning compressor according to claim 5, characterized in that: The rotating assembly (56) includes a worm wheel (563) connected to one side of the clamping plate (55), a worm (562) meshingly connected to the bottom of the worm wheel (563) and a third motor (561) connected to one side of the worm (562), and one side of the third motor (561) is connected to the clamping plate (55).

7. The hollow piston processing device for automobile air-conditioning compressor according to claim 1, characterized in that: The rebound component (65) includes a second telescopic member (651) connected to both sides of the bottom of the support block (64), a third spring (652) sleeved on the second telescopic member (651) and a fixed frame (653) connected to the bottom of the second telescopic member (651), the bottom of the fixed frame (653) is connected to a heating device (66), and a first bevel (6531) is provided on one side of the bottom of the fixed frame (653).

8. The hollow piston processing device for automobile air-conditioning compressor according to claim 1, characterized in that: A second bevel (441) is provided on one side of the bottom of the push block (44); A third oblique edge (631) is provided on one side of the top of the moving block (63), and the third oblique edge (631) matches the second oblique edge (441).

9. The hollow piston processing device for automobile air-conditioning compressor according to claim 5, characterized in that: One side of the baffle (54) is provided with a minor arc surface, two sides of one baffle (54) are provided with positioning grooves (541), and two sides of the other baffle (54) are fixed with positioning rods (542), and the positioning rods (542) are slidably connected to the groove body of the positioning groove (541).

10. A method for processing a hollow piston of an automobile air-conditioning compressor, used for implementing a hollow piston processing device for an automobile air-conditioning compressor according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, firstly, the two parts of the hollow piston are placed on the two ends of the placing platform (23), and the placing platform (23) is moved by rotating the one-way screw (22) so as to contact the baffle (54), and then the supporting plate (53) is moved by rotating the two-way screw (52), so that the clamping plate (55) fixes the parts of the hollow piston, and at this time, the two baffles (54) are in contact, so that the connection between the two parts of the hollow piston is in a sealed space; S2, heating the two parts of the hollow piston by a heating device (66); S3, after preheating is completed, the welding device (33) and the push block (44) are driven to descend by the pneumatic cylinder (31), and the push block (44) squeezes the movable block (63) to move the movable block (63), thereby causing the heating device (66) to be separated from the socket (232), and then the push block (44) is kept stationary by the first spring (42), and the welding device (33) continues to descend into the socket (232) and contacts the two parts of the hollow piston, thereby achieving welding.

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