Automobile compressor disc and swash plate seat concentric positioning tool, assembly equipment and process

Abstract

The invention belongs to the technical field of automobile compressor production, and particularly relates to an automobile compressor disc and swash plate seat concentric positioning tool, assembly equipment and process. The swash plate seat is mounted on the screwing head, the final screwing torque is controlled by the torque sensor in an automatic assembly mode that the screwing head moves downwards to be screwed in the fixed swash plate, and the problem that in an existing assembly process, after the swash plate seat is mounted on the screwing head, the axis deviation is too large, and consequently effective screwing assembly cannot be conducted subsequently is solved. Automatic alignment can be achieved, the automation degree is high, the production takt is shortened, and manual screwing and subsequent screwing torque control are not needed.

Description

Technical Field

[0001] The present invention belongs to the technical field of automotive compressor production, and particularly relates to a concentric positioning tooling, an assembly device and a process for an automotive compressor disk and a swash plate seat. Background Art

[0002] CN102767506A discloses a swash plate assembly of an automotive air conditioner compressor, including a swash plate seat 1' and a swash plate 2'. The swash plate 2' and the swash plate seat 1' are of a split structure. An internal thread is provided on the swash plate 2', and a corresponding external thread is provided on the swash plate seat 1'. The swash plate 2' is installed on the swash plate seat 1' through the cooperation of the internal and external threads.

[0003] Two connecting ears, two boss tips and a bushing located inside the swash plate seat are provided on the swash plate seat. In order to achieve concentric assembly, the previous assembly method was as follows: First, install the swash plate seat from bottom to top on the screwing head of the rotating mechanism. Considering the convenience of installing the swash plate seat and removing the screwing head after assembly, the bottom of the screwing head lacks a constraint structure for the swash plate seat. Since the center of gravity of the swash plate seat is offset relative to the center of the swash plate seat, and at the same time, the bushing inside the swash plate seat will rotate at a certain angle relative to the swash plate seat, it is easy to cause an angular difference between the axis of the swash plate seat and the axis of the disk, and the included angle is too large, about 15-25°. This results in the inability to effectively align and screw the swash plate seat and the disk into a whole, and it is easy to have a "pretend" problem, which affects the performance of the compressor during subsequent overall machine assembly operations, and even the whole machine is scrapped. Summary of the Invention

[0004] The technical problem to be solved by the present invention is:

[0005] How to efficiently and concentrically automatically assemble the swash plate seat with a special-shaped structure onto the swash plate.

[0006] In order to solve the above technical problems, the inventor obtained the technical solution of the present invention through practice and summary. The present invention adopts the following technical solutions:

[0007] A concentric positioning tooling for an automotive compressor disk and a swash plate seat, including:

[0008] A central shaft, on which an elastic limiting member is installed;

[0009] A limiting block, on which a first constraint body and a second constraint body extending downward are provided. The first constraint body is inserted between the two connecting ears and the bottom fits on the swash plate seat. There are two groups of the second constraint bodies symmetrically distributed. A first positioning surface and a second positioning surface are provided on the second constraint body. The first positioning surface constrains the top of the positioning boss tip, and the second positioning surface constrains the upper surface of the swash plate seat.

[0010] The third positioning surface is arranged at the bottom of the limit block and on both sides of the first restraint body, and is respectively used to restrain the top of the connecting ear.

[0011] In a more optimized technical solution, the elastic limit member includes a stepped hole arranged on the central axis. A stop pin body and a spring are installed in the stepped hole. One end of the stop pin body partially protrudes outside the small end port of the stepped hole and this end has a spherical structure. An internal thread is provided in the large end port of the stepped hole, and a setscrew is installed in the large end port of the stepped hole to squeeze the spring;

[0012] The central axis passes through the bushing until the stop pin body is below the bushing. The radius of the central axis is smaller than the inner diameter of the bushing and does not exceed 0.05 mm.

[0013] In a more optimized technical solution, the assembly device further includes a central sleeve. The outer peripheral surface and the inner wall surface of the central sleeve are both arc-shaped surfaces. The central sleeve is detachably installed inside the swash plate seat;

[0014] The elastic limit member is used to restrain the inner wall surface of the central sleeve from the inside.

[0015] In a more optimized technical solution, two flat cutting surfaces are symmetrically distributed on both sides of the outer peripheral surface of the central sleeve.

[0016] In a more optimized technical solution, the elastic limit member includes a convex platform body extending downward tangentially at the bottom end of the central axis. An internal thread hole is provided on the bottom surface of the convex platform body;

[0017] A bottom ring sleeve is sleeved outside the convex platform body. An inner ring body is provided at the center of the top of the bottom ring sleeve. At least two groups of restraint openings are provided on the bottom ring sleeve. A third restraint body is installed in the restraint openings, and the third restraint body and the inner ring body are connected by an elastic body;

[0018] A central hole is provided at the center of the bottom ring sleeve, and the central hole is connected to the convex platform body through a connecting bolt.

[0019] In a more optimized technical solution, an adaptation groove is provided at the top of the limit block.

[0020] An assembly device for an automotive compressor disk and a swash plate seat includes:

[0021] A disk positioning assembly, the disk positioning assembly includes a lower base, and a disk gripper is installed on the lower base. The disk gripper is used to circumferentially clamp and fix the disk;

[0022] A swash plate seat positioning assembly, the swash plate seat positioning assembly includes a screwing head. The screwing head is located directly above the disk gripper and can move vertically and circumferentially relative to the disk gripper. The positioning tooling as described is installed at the bottom of the screwing head, and a lower convex body that is vertically inserted and adapted to the adaptation groove is provided at the bottom of the screwing head.

[0023] In a more optimized technical solution, a lifting mechanism is independently arranged above the screwing head. The lifting mechanism includes a back plate, on which a vertical cylinder and a vertical guide rail are installed. The piston rod end of the vertical cylinder is connected to a vertical slide table, and the vertical slide table is slidably matched with the vertical guide rail;

[0024] A driver and a cage are installed on the vertical slide table. The output shaft of the driver is connected to the screwing head through a torque sensor, and the torque sensor is rotatably installed on the cage.

[0025] In a more optimized technical solution, the assembly equipment further includes:

[0026] A first conveying component, which is arranged front and back. The front side of the first conveying component is the discharging end for outputting the swash plate seat, and an electromagnetic top wedge is arranged at the bottom of the discharging end of the first conveying component;

[0027] A second conveying component, which includes an upper conveying part and a lower conveying part. The upper conveying part is located above the first conveying component. A control switch is arranged at the discharging end of the upper conveying part. The control switch is a baffle plate rotatably installed at the discharging end, and a torsion spring is installed at the rotation node. The lower conveying part is vertically arranged, and a driving cylinder is independently arranged at the top. The piston rod end of the driving cylinder is installed with a vertical sliding frame. A longitudinal guide groove is arranged on the vertical sliding frame, and a moving block is installed in the longitudinal guide groove. The moving block is installed on the side of the lower conveying part. Two connecting rods distributed up and down are installed on both the left and right sides of the lower conveying part. The free ends of the connecting rods are rotatably installed on an independently arranged mounting plate. A release switch is installed at the top of the lower conveying part. The top of the release switch is a wedge-shaped structure for entering the upper conveying part and squeezing the target object through the control switch into the lower conveying part. An elastic card component is installed at the bottom of the lower conveying part. The elastic card component includes elastic pieces symmetrically installed at the bottom of the lower conveying part, and the distance between the two elastic pieces first decreases and then increases;

[0028] A left-right transverse movement mechanism, which is arranged at the rear side of the back plate. The left-right transverse movement mechanism includes a rear plate, on which a transverse guide rail and a transverse cylinder are horizontally arranged. The back plate is slidably matched with the transverse guide rail, and the piston rod end of the transverse cylinder is connected to the rear plate.

[0029] An assembly process for an automotive compressor disk and a swash plate seat, using the described assembly equipment. The assembly steps are as follows:

[0030] Step 1, Preparation work

[0031] Position the end face of the bushing close to the vertical direction, insert it into the swash plate seat, rotate it by a certain angle and install it in the swash plate seat through the spherical structure on the outer peripheral surface. The swash plate seat is sleeved on the outside of the central shaft from bottom to top. The positioning surface three contacts the top of the connecting ear, the first constraint body is inserted into the two connecting ears and the bottom fits on the swash plate seat, the positioning surface one contacts the top surface of the boss tip, and the positioning surface two contacts the upper surface of the swash plate seat. At this time, the elastic limiting member hangs the bushing from the bottom through the spherical structure at the end of the retaining pin body;

[0032] Or, position the end face of the central sleeve close to the vertical direction, insert it into the swash plate seat, rotate it by a certain angle and install it in the swash plate seat through the spherical structure on the outer peripheral surface. Sleeve the swash plate seat on the outside of the central shaft from bottom to top. The positioning surface three contacts the top of the connecting ear, the first constraint body is inserted into the two connecting ears and the bottom fits on the swash plate seat, the positioning surface one contacts the top surface of the boss tip, and the positioning surface two contacts the upper surface of the swash plate seat. At this time, the elastic limiting member acts on the inner wall surface of the central sleeve radially through the end of the third constraint body, and the acting position is the upper middle part of the inner wall surface;

[0033] Step 2, Fix the disc

[0034] Place the disc inside the disc gripper of the lower base, and fix the disc through the disc gripper. The disc gripper is a six-jaw pneumatic chuck;

[0035] Step 3, Assembly operation

[0036] The piston rod of the vertical cylinder drives the vertical slide to descend to the set position. At this time, the external thread of the swash plate seat is aligned with the internal thread of the swash plate. The driver drives the screwing head to rotate. While screwing, the piston rod of the vertical cylinder drives the vertical slide to descend until the torque detected by the torque sensor reaches the set torque, and the torque value is fed back to the control system. The control system controls the driver and the vertical cylinder to stop working to obtain the assembly;

[0037] Step 4, Separate the screwing head from the swash plate seat

[0038] The control system controls the vertical cylinder to retract the piston rod. The piston rod of the vertical cylinder drives the vertical slide, the driver, and the screwing head to ascend. The elastic limiting member separates from the central sleeve or the bushing until the screwing head returns to the initial position again;

[0039] Step 5, Remove the assembly

[0040] Loosen the disc gripper and take the assembly away from the disc gripper of the lower base.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] 1. The present invention uses an automatic assembly method in which the swash plate seat is installed on the screwing head and the screwing head is screwed downward into a fixed swash plate. The torque sensor is used to control the final screwing torque, overcoming the problem in the existing assembly process that after the swash plate seat is installed on the screwing head, the axis deviation is too large, resulting in ineffective subsequent screwing and assembly. It can automatically find the correct position, has a high degree of automation, shortens the production cycle, eliminates the need for manual screwing and subsequent screwing torque control.

[0043] 2. In one method, the central shaft is inserted through the shaft sleeve, and the top of the swash plate seat is positioned by five points using a limit block. The elastic limiting member passes through the shaft sleeve and hangs the shaft sleeve from the bottom, thereby ensuring subsequent automatic alignment. The positioning accuracy of the swash plate seat is high and it is in an almost horizontal state. By controlling the dimensional difference between the radius of the central shaft and the inner circle radius of the shaft sleeve within 0.05 mm, even if there is a deviation, the deviation amount is extremely small, controlled within 2°. In this way, the assembly accuracy of the swash plate seat can be effectively ensured. In another method, the central sleeve is installed into the swash plate seat. The central shaft is inserted, and the restraint body of the elastic limiting member radially acts on the middle and upper part of the inner wall surface of the central shaft. On the one hand, it can ensure the central position of the central sleeve, and on the other hand, in this state, the swash plate seat has an upward initial force, ensuring the positioning effect of each positioning surface and the restraint body on the swash plate seat. In this way, the problem of a certain deviation amount still existing in the first method can be basically eliminated. Both assembly methods can complete the automatic alignment, thread-fixed torque assembly of the swash plate seat and the swash plate, and at the same time, it is also convenient for the separation operation between the screwing mechanism and the assembly after assembly.

[0044] 3. The assembly equipment of the present invention is also provided with a first conveying component and a second conveying component. The first conveying component is used to convey the swash plate seat, and the second conveying component is used to convey and install a single shaft sleeve or central sleeve. A control switch for single release of the shaft sleeve or central sleeve is provided at the end of the upper conveying part, and a release switch is provided at the feeding end of the lower conveying part. The control switch is opened through the release switch, and the single shaft sleeve or central sleeve is released into the lower conveying part and blocked by an elastic card to prevent it from falling, and the angle state is converted, that is, the end face of the shaft sleeve or central sleeve on the upper conveying part is in a vertical state, and the flat cut surface is distributed left and right, and the end face of the shaft sleeve or central sleeve on the lower conveying part is in a front and rear state. The lower conveying part has the function of moving up and down. The lower end of the lower conveying part moves downward and acts on the swash plate seat through an elastic card member, and the shaft sleeve or central sleeve enters the swash plate seat and the bottom enters the constraint groove at the discharge end of the first conveying component. The angle adjustment is completed through an electromagnetic top wedge to complete the assembly. Subsequently, the central shaft is assembled with the swash plate seat under the action of a horizontal cylinder and a vertical cylinder, and finally, the swash plate seat and the swash plate are automatically thread-assembled through a screwing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a schematic diagram of the overall structure of the positioning tooling of the present invention;

[0046] Figure 2 and Figure 3 are structural diagrams of the limiting block from two different perspectives;

[0047] Figure 4 is the assembly relationship diagram of the elastic limiting member and the bushing of the present invention;

[0048] Figure 5 is the assembly relationship diagram of the elastic limiting member and the center sleeve of the present invention;

[0049] Figure 6 is the top view of the center sleeve of the present invention;

[0050] Figure 7 is the structural diagram of the bottom ring sleeve of the present invention;

[0051] Figure 8 is the position distribution diagram of the screwing head and the lower base of the present invention;

[0052] Figure 9 is the front view of the assembly equipment of one embodiment of the present invention;

[0053] Figure 10 is the bottom structural diagram of the screwing head of the present invention;

[0054] Figure 11 is the front view of the assembly equipment of another embodiment of the present invention;

[0055] Figure 12 is the side view of the second conveying component of the present invention Figure 3 in a certain state;

[0056] Figure 13 is the partial structural diagram (center sleeve) of the discharge end of the first conveying component of the present invention;

[0057] Figure 14 is the partial structural diagram (bushing) of the discharge end of the first conveying component of the present invention.

[0058] In the figure: 10, central axis; 11, elastic limiting member; 111, retaining pin body; 112, setscrew; 113, convex platform body; 114, bottom ring sleeve; 115, restraint body three; 116, inner ring body; 117, elastic body; 118, mating groove; 20, limiting block; 21, restraint body one; 22, restraint body two; 23, positioning surface one; 24, positioning surface two; 25, positioning surface three; 30, central sleeve; 31, flat cutting surface; 40, lower base; 41, disc jaw; 50, screwing head; 51, lower convex body; 60, back plate; 61, vertical cylinder; 62, vertical guide rail; 63, vertical sliding table; 64, driver; 65, cage; 66, torque sensor; 70, conveying assembly one; 71, electromagnetic top wedge; 72, restraint groove; 80, conveying assembly two; 81, upper conveying part; 82, lower conveying part; 83, retaining piece; 84, driving cylinder; 85, vertical sliding frame; 86, longitudinal guide groove; 87, moving block; 88, connecting rod; 89, mounting plate; 810, release switch; 811, elastic sheet; 90, rear plate; 91, horizontal guide rail; 92, horizontal cylinder. Specific implementation manner

[0059] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0060] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is 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 orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0061] Embodiment 1

[0062] As Figures 1 to 7 shown, the concentric positioning tooling for the disc and swash plate seat of an automotive compressor includes:

[0063] A central axis 10, on which an elastic limiting member 11 is installed;

[0064] A limiting block 20, on which a downwardly extending restraint body one 21 and a restraint body two 22 are provided. The restraint body one 21 is inserted between two connecting ears and its bottom fits on the swash plate seat. There are two groups of the restraint body two 22 symmetrically distributed. The restraint body two 22 is provided with a positioning surface one 23 and a positioning surface two 24. The positioning surface one 23 restrains the top of the tip of the positioning boss, and the positioning surface two 24 restrains the upper surface of the swash plate seat;

[0065] The third positioning surface 25 is arranged at the bottom of the limiting block 20 and on both sides of the first constraint body 21, and is respectively used to constrain the top of the connecting ear.

[0066] An adaptation groove 118 is arranged at the top of the limiting block 20, which facilitates the up-and-down assembly with the screwing head 50 through the adaptation groove 118 to ensure the screwing force.

[0067] As Figure 4 shown, in a first solution for implementing the constraint of the swash plate seat, the elastic limiting member 11 includes a stepped hole arranged on the central shaft 10. A retaining pin body 111 and a spring are installed in the stepped hole. One end of the retaining pin body 111 partially protrudes outside the small-end port of the stepped hole and this end has a spherical structure. Internal threads are provided in the large-end port of the stepped hole, and a setscrew 112 is installed in the large-end port of the stepped hole to compress the spring;

[0068] The central shaft 10 passes through the bushing until the retaining pin body 111 is below the bushing. The radius of the central shaft 10 is smaller than the inner diameter of the bushing and does not exceed 0.05 mm.

[0069] During implementation, the swash plate seat with a bushing installed inside can move upward through the outside of the central shaft 10 until the second positioning surface 24 fits with the upper surface of the swash plate seat, the first positioning surface 23 fits with the top of the positioning boss tip, and the first constraint body 21 is inserted into the two connecting ears and the bottom fits on the swash plate seat. At this time, the retaining pin body 111 enters the bottom of the bushing to hold the bushing, thereby constraining the swash plate seat. By controlling the radius of the central shaft 10 to be smaller than the inner diameter of the bushing and not exceeding 0.05 mm, the allowable deflection of the swash plate seat is controlled within 2°, thereby completing the positioning and constraint of the swash plate seat.

[0070] As Figure 5 shown, in a second solution for implementing the constraint of the swash plate seat, the assembly device further includes a central sleeve 30. The outer peripheral surface and the inner wall surface of the central sleeve 30 are both arc-shaped structures, and the central sleeve 30 is detachably installed inside the swash plate seat;

[0071] The elastic limiting member 11 is used to radially constrain the upper middle part of the inner wall surface of the central sleeve 30 from the inside.

[0072] Two flat cut surfaces 31 are symmetrically distributed on both sides of the outer peripheral surface of the central sleeve 30, and the two flat cut surfaces 31 can be used to conveniently enter the swash plate seat.

[0073] The elastic limiting member 11 includes a convex platform body 113 extending downward tangentially at the bottom end of the central shaft 10, and an internal threaded hole is provided on the bottom surface of the convex platform body 113;

[0074] A bottom ring sleeve 114 is sleeved outside the boss body 113. An inner ring body 116 is arranged at the center of the top of the bottom ring sleeve 114. At least two sets of constraint openings are arranged on the bottom ring sleeve 114, preferably three. A third constraint body 115 is installed in the constraint openings. The third constraint body 115 is connected to the inner ring body 116 through an elastic body 117;

[0075] A central hole is arranged at the center of the bottom ring sleeve 114, and the central hole is connected to the boss body 113 through a connecting bolt.

[0076] The central sleeve 30 is inserted into the swash plate seat by using two flat surfaces 31. By rotating a certain angle, the central sleeve 30 is inserted into the swash plate seat and the centers coincide. When the central shaft 10 penetrates into the central sleeve 30, the central sleeve 30 is height and horizontally constrained by three third constraint bodies 115. At the same time, during the constraint, a corresponding positioning or constraint position for attaching the swash plate seat to the limit block 20 can also be provided, completing the horizontal and concentric constraints of the swash plate seat, facilitating the subsequent automatic alignment operation of the thread assembly.

[0077] Embodiment 2

[0078] As Figure 8 shown, an assembly device for an automotive compressor disk and swash plate seat includes:

[0079] A disk positioning assembly, the disk positioning assembly includes a lower base 40. A disk gripper 41 is installed on the lower base 40. The disk gripper 41 is a six-jaw pneumatic chuck that can reduce disk deformation. The disk gripper 41 is used for circumferentially clamping and fixing the disk;

[0080] A swash plate seat positioning assembly, the swash plate seat positioning assembly includes a screwing head 50. The screwing head 50 is located directly above the disk gripper 41 and can move vertically and circumferentially relative to the disk gripper 41. A positioning tooling introduced in Embodiment 1 is installed at the bottom of the screwing head 50. As Figure 10 shown, a lower convex body 51 that is vertically inserted and adapted to the mating groove 118 is arranged at the bottom of the screwing head 50. The mating groove 118 facilitates the vertical assembly with the screwing head 50 to ensure the screwing force.

[0081] Embodiment 3

[0082] In Embodiment 2, as Figure 9 shown, a lifting mechanism is independently arranged above the screwing head 50. The lifting mechanism includes a back plate 60. A vertical cylinder 61 and a vertical guide rail 62 are installed on the back plate 60. The piston rod end of the vertical cylinder 61 is connected to a vertical slide 63. The vertical slide 63 is slidably fitted on the vertical guide rail 62; The vertical cylinder 61 is used to move the vertical slide 63 up and down, thereby completing the height adjustment of the screwing head 50.

[0083] A driver 64 and a cage 65 are installed on the vertical slide 63. The output shaft of the driver 64 is connected to the screwing head 50 via a torque sensor 66. The torque sensor 66 is rotatably installed on the cage 65. The detected torque is fed back to the control system through the torque sensor 66. The control system is used to control the driver 64 to stop working and the piston rod of the vertical cylinder 61 to reset.

[0084] Embodiment 4

[0085] In Embodiment 2, as Figures 11 to 14 shown, the assembly equipment further includes:

[0086] A first conveying component 70, the first conveying component 70 is arranged front and back. The front side of the first conveying component 70 is the discharge end for outputting the swash plate seat. A constraint groove 72 and an electromagnetic top wedge 71 located inside the constraint groove 72 are provided at the bottom of the discharge end of the first conveying component 70. The electromagnetic top wedge 71 is in an energized state before the bushing or the center sleeve 30 enters the constraint groove 72, and the end of the top head is in a state of inwardly compressing the spring. When the bushing or the center sleeve 30 enters the constraint groove 72, the power is switched off, and the spring pushes the top head outwards, thereby pushing the bottom of the bushing or the center sleeve 30 outwards, and then the bushing or the center sleeve 30 is loaded into the swash plate seat;

[0087] A second conveying component 80, the second conveying component 80 includes an upper conveying part 81 and a lower conveying part 82. The upper conveying part 81 is located above the first conveying component 70. A control switch is provided at the discharge end of the upper conveying part 81. When the bushing or the center sleeve 30 is in the upper conveying part 81, the port is in a vertical state and the flat cut surface 31 is distributed left and right. When entering the lower conveying part 82, the port is arranged front and back. The control switch is a flap 83 rotatably installed at the discharge end and a torsion spring is installed at the rotation node. The lower conveying part 82 is vertically arranged and a driving cylinder 84 is independently provided at the top. The piston rod end of the driving cylinder 84 is installed with a vertical sliding frame 85. A longitudinal guide groove 86 is provided on the vertical sliding frame 85. The longitudinal guide groove 86 is arranged with the front end higher than the rear end. A moving block 87 is installed in the longitudinal guide groove 86. The moving block 87 is installed on the side of the lower conveying part 82. Two rotatable connecting rods 88 distributed up and down are installed on both the left and right sides of the lower conveying part 82. The free end of the connecting rod 88 is rotatably and slidably installed on an independently provided mounting plate 89. An unlocking switch 810 is installed at the top of the lower conveying part 82. The top of the unlocking switch 810 is a wedge-shaped structure for entering the upper conveying part 81 and squeezing the target object through the control switch into the lower conveying part 82. An elastic card member is installed at the bottom of the lower conveying part 82. The elastic card member includes elastic pieces 811 symmetrically installed at the bottom of the lower conveying part 82, and the distance between the two elastic pieces 811 first decreases and then increases;

[0088] Left and right transverse movement mechanism, the left and right transverse movement mechanism is arranged at the rear side of the back plate 60. The left and right transverse movement mechanism includes a rear plate 90, on which a transverse guide rail 91 and a transverse cylinder 92 are arranged horizontally. The transverse cylinder 92 is independently arranged. The back plate 60 is slidably engaged with the transverse guide rail 91 and the piston rod end of the transverse cylinder 92 is connected to the rear plate 90. The rear plate 90 and the transverse guide rail 91 are located at the front side of the mounting plate 89.

[0089] During implementation, the swash plate seat is conveyed to the top of the constraint groove 72 at the discharge end. The bushing or the center sleeve 30 is constrained by the retaining piece 83 at the discharge end of the upper conveying part 81. The driving cylinder 84 drives the vertical carriage 85 to move upward. The vertical carriage 85 will first rotate upward. When the top reaches the corresponding position at the bottom of the upper conveying part 81, it moves upward relative to the mounting plate 89, extruding a single bushing or center sleeve 30 outward and passing through the retaining piece 83 into the lower conveying part 82, and being constrained by two elastic pieces 811 and not falling. The driving cylinder 84 drives the vertical carriage 85 to move downward. When moving downward, the lower conveying part 82 will first move downward and then deflect downward until the elastic pieces 811 contact the swash plate seat. Due to being blocked, the distance between the two elastic pieces 811 increases, and the bushing or center sleeve 30 enters the swash plate seat. During this period, the electromagnetic top wedge 71 will also be compressed and enter and contact within the constraint groove 72. The constraint groove 72 is used to ensure that the bushing or center sleeve 30 rotates within the swash plate seat, and the rotation node is the center of the inner wall surface of the swash plate seat. The driving cylinder 84 drives the vertical carriage 85 to move upward again. The vertical carriage 85 will rotate upward. At the same time, the distance between the two elastic pieces 811 gradually decreases until it returns to the initial distance position, and the electromagnetic top wedge 71 rotates the bushing or center sleeve 30 within the swash plate seat to complete the assembly.

[0090] Embodiment 5

[0091] In Embodiment 2, for an assembly process of an automotive compressor disk and a swash plate seat, using the described assembly equipment, the assembly steps are as follows:

[0092] Step 1, Preparation work

[0093] When adopting Scheme A:

[0094] Align the end face of the bushing in the vertical direction, insert it into the swash plate seat, rotate it by a certain angle and install it in the swash plate seat through the spherical structure on the outer peripheral surface. The swash plate seat is sleeved upward from the outside of the central shaft 10. The third positioning surface 25 contacts the top of the connecting ear, the first constraint body 21 is inserted into the two connecting ears and the bottom fits on the swash plate seat, the first positioning surface 23 contacts the top surface of the convex platform tip, and the second positioning surface 24 contacts the upper surface of the swash plate seat. At this time, the elastic limiting member 11 hangs the bushing from the bottom through the spherical structure at the end of the retaining pin body 111;

[0095] When adopting Scheme B:

[0096] Position the end face of the center sleeve 30 close to the vertical direction, insert it into the swash plate seat, rotate it by a certain angle and install it in the swash plate seat through the spherical structure on the outer peripheral surface. Insert the swash plate seat from bottom to top outside the center shaft 10. The third positioning surface 25 contacts the top of the connecting ear, the first restraint body 21 is inserted into the two connecting ears and its bottom fits on the swash plate seat, the first positioning surface 23 contacts the top surface of the boss tip, and the second positioning surface 24 contacts the upper surface of the swash plate seat. At this time, the elastic limiting member 11 acts radially on the inner wall surface of the center sleeve 30 through the end of the third restraint body 115, and the acting position is the upper middle part of the inner wall surface;

[0097] Step 2, Fix the disc

[0098] Place the disc inside the disc chuck 41 of the lower base 40 and fix the disc through the disc chuck 41. The disc chuck 41 is a six-jaw pneumatic chuck;

[0099] Step 3, Assembly operation

[0100] The piston rod of the vertical cylinder 61 drives the vertical slide 63 to descend to the set position. At this time, the external thread of the swash plate seat is aligned with the internal thread of the swash plate. The driver 64 drives the screwing head 50 to rotate. While screwing, the piston rod of the vertical cylinder 61 drives the vertical slide 63 to descend until the torque detected by the torque sensor 66 reaches the set torque, and the torque value is fed back to the control system. The control system controls the driver 64 and the vertical cylinder 61 to stop working to obtain the assembly;

[0101] Step 4, Separate the screwing head 50 from the swash plate seat

[0102] The control system controls the vertical cylinder 61 to retract the piston rod. The piston rod of the vertical cylinder 61 drives the vertical slide 63, the driver 64, and the screwing head 50 to ascend. The elastic limiting member 11 is separated from the center sleeve 30 or the shaft sleeve until the screwing head 50 returns to the initial position again;

[0103] Step 5, Remove the assembly

[0104] Loosen the disc chuck 41 and take the assembly out of the disc chuck 41 of the lower base 40.

[0105] As described above, it is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. The substitution may be the substitution of partial structures, devices, and method steps, or a complete technical solution. Any equivalent substitution or change made according to the technical solution of the present invention and its inventive concept should be covered within the protection scope of the present invention.

Claims

1. An automotive compressor disk and swash plate seat concentric positioning tooling, characterized in that, Comprising: A central axis (10) with an elastic limiting member (11) mounted thereon; A limiting block (20) having a downwardly extending restraint body one (21) and restraint body two (22) provided thereon. The restraint body one (21) is inserted between two connecting ears and its bottom is in contact with the swash plate seat. There are two groups of the restraint body two (22) symmetrically distributed. The restraint body two (22) is provided with a positioning surface one (23) and a positioning surface two (24). The positioning surface one (23) restrains the top of the tip of the positioning boss, and the positioning surface two (24) restrains the upper surface of the swash plate seat; A positioning surface three (25) provided at the bottom of the limiting block (20) and on both sides of the restraint body one (21) for respectively restraining the top of the connecting ear.

2. The concentric positioning tooling for the automotive compressor disk and swash plate seat according to claim 1, characterized in that, The elastic limiting member (11) includes a stepped hole provided on the central axis (10). A retaining pin body (111) and a spring are installed in the stepped hole. One end of the retaining pin body (111) is partially exposed outside the small end port of the stepped hole and this end has a spherical structure. An internal thread is provided in the large end port of the stepped hole, and a set screw (112) is installed in the large end port of the stepped hole for extruding the spring; The central axis (10) passes through the bushing until the retaining pin body (111) is below the bushing. The radius of the central axis (10) is smaller than the inner diameter of the bushing by no more than 0.05 mm.

3. The concentric positioning tooling for the automotive compressor disk and swash plate seat according to claim 1, wherein The assembly device further includes a central sleeve (30). The outer peripheral surface and the inner wall surface of the central sleeve (30) are both arc-shaped structures. The central sleeve (30) is detachably installed inside the swash plate seat; The elastic limiting member (11) is used to restrain the inner wall surface of the central sleeve (30) from the inside.

4. The concentric positioning tooling for the automotive compressor disk and swash plate seat according to claim 3, characterized in that, Two flat cutting surfaces (31) are symmetrically distributed on both sides of the outer peripheral surface of the central sleeve (30).

5. The concentric positioning tooling for the automotive compressor disk and swash plate seat according to claim 3, characterized in that The elastic limiting member (11) includes a convex platform body (113) provided at the bottom end of the central axis (10) and extending downward tangentially. An internal threaded hole is provided on the bottom surface of the convex platform body (113); A bottom ring sleeve (114) is sleeved outside the convex platform body (113). An inner ring body (116) is provided at the center of the top of the bottom ring sleeve (114). At least two groups of restraint openings are provided on the bottom ring sleeve (114), and a restraint body three (115) is installed in the restraint openings. The restraint body three (115) and the inner ring body (116) are connected by an elastic body (117); A central hole is provided at the center of the bottom ring sleeve (114), and the central hole is connected to the convex platform body (113) through a connecting bolt.

6. The concentric positioning tooling for the automotive compressor disk and swash plate seat according to claim 1, wherein An adaptor slot (118) is provided at the top of the limiting block (20).

7. An assembly device for an automotive compressor disk and swash plate seat, characterized in that, Comprising: A disk positioning assembly, which includes a lower base (40). A disk gripper (41) is installed on the lower base (40). The disk gripper (41) is used for circumferentially clamping and fixing the disk; A swash plate seat positioning assembly, which includes a screwing head (50). The screwing head (50) is located directly above the disk gripper (41) and can move vertically and circumferentially relative to the disk gripper (41). The bottom of the screwing head (50) is installed with the positioning tooling as described in any one of claims 1 to 6. A lower convex body (51) that is vertically inserted and adapted to the adaptor slot (118) is provided at the bottom of the screwing head (50).

8. An assembly device for an automotive compressor disk and swash plate seat according to claim 7, characterized in that, An elevating mechanism is independently arranged above the screwing head (50). The elevating mechanism includes a back plate (60). A vertical air cylinder (61) and a vertical guide rail (62) are installed on the back plate (60). The piston rod end of the vertical air cylinder (61) is connected to a vertical slide table (63). The vertical slide table (63) is slidably fitted on the vertical guide rail (62). A driver (64) and a cage (65) are installed on the vertical slide table (63). The output shaft of the driver (64) is connected to the screwing head (50) via a torque sensor (66). The torque sensor (66) is rotatably installed on the cage (65).

9. An assembly device for an automotive compressor disk and swash plate seat according to claim 8, characterized in that, The assembly equipment further includes: A first conveying assembly (70). The first conveying assembly (70) is arranged front and back. The front side of the first conveying assembly (70) is the discharge end for discharging the swash plate seat. A restraint groove (72) and an electromagnetic top wedge (71) located inside the restraint groove (72) are arranged at the bottom of the discharge end of the first conveying assembly (70). A second conveying assembly (80). The second conveying assembly (80) includes an upper conveying part (81) and a lower conveying part (82). The upper conveying part (81) is located above the first conveying assembly (70). A control switch is arranged at the discharge end of the upper conveying part (81). The control switch is a baffle (83) rotatably installed at the discharge end and a torsion spring is installed at the rotation node. The lower conveying part (82) is vertically arranged and a driving air cylinder (84) is independently arranged at the top. The piston rod end of the driving air cylinder (84) is installed with a vertical sliding frame (85). A longitudinal guide groove (86) is arranged on the vertical sliding frame (85). A moving block (87) is installed in the longitudinal guide groove (86). The moving block (87) is installed on the side of the lower conveying part (82). Two connecting rods (88) distributed up and down are installed on both the left and right sides of the lower conveying part (82). The free ends of the connecting rods (88) are rotatably installed on an independently arranged mounting plate (89). A release switch (810) is installed at the top of the lower conveying part (82). The top of the release switch (810) is a wedge-shaped structure for entering the upper conveying part (81) and squeezing the target object to enter the lower conveying part (82) through the control switch. An elastic card member is installed at the bottom of the lower conveying part (82). The elastic card member includes elastic pieces (811) symmetrically installed at the bottom of the lower conveying part (82). The distance between the two elastic pieces (811) first decreases and then increases. A left-right transverse movement mechanism is arranged at the rear side of the back plate (60). The left-right transverse movement mechanism includes a rear plate (90). A transverse guide rail (91) and a transverse air cylinder (92) are horizontally arranged on the rear plate (90). The back plate (60) is slidably fitted on the transverse guide rail (91) and the piston rod end of the transverse air cylinder (92) is connected to the rear plate (90).

10. An assembly process for an automotive compressor disk and swash plate seat, characterized in that, When using the assembly equipment as described in claim 9, the assembly steps are as follows: Step 1, Preparation work Position the end face of the bushing close to the vertical direction, insert it into the swash plate seat, rotate it by a certain angle, and install it in the swash plate seat through the spherical structure on the outer peripheral surface. The swash plate seat is sleeved on the outside of the central shaft (10) from bottom to top. The third positioning surface (25) contacts the top of the connecting ear, the first restraint body (21) is inserted into the two connecting ears and its bottom fits on the swash plate seat, the first positioning surface (23) contacts the top surface of the boss tip, and the second positioning surface (24) contacts the upper surface of the swash plate seat. At this time, the elastic limiting member (11) hangs the bushing from the bottom through the spherical structure at the end of the stop pin body (111); Or, position the end face of the central sleeve (30) close to the vertical direction, insert it into the swash plate seat, rotate it by a certain angle, and install it in the swash plate seat through the spherical structure on the outer peripheral surface. Sleeve the swash plate seat on the outside of the central shaft (10) from bottom to top. The third positioning surface (25) contacts the top of the connecting ear, the first restraint body (21) is inserted into the two connecting ears and its bottom fits on the swash plate seat, the first positioning surface (23) contacts the top surface of the boss tip, and the second positioning surface (24) contacts the upper surface of the swash plate seat. At this time, the elastic limiting member (11) acts on the inner wall surface of the central sleeve (30) radially through the end of the third restraint body (115), and the acting position is the upper middle part of the inner wall surface; Step 2, Fix the disc Place the disc inside the disc chuck (41) of the lower base (40), and fix the disc through the disc chuck (41). The disc chuck (41) is a six-jaw pneumatic chuck; Step 3, Assembly operation The piston rod of the vertical cylinder (61) drives the vertical slide (63) to descend to the set position. At this time, the external thread of the swash plate seat is aligned with the internal thread of the swash plate. The driver (64) drives the screwing head (50) to rotate. While screwing, the piston rod of the vertical cylinder (61) drives the vertical slide (63) to descend until the torque detected by the torque sensor (66) reaches the set torque, and the torque value is fed back to the control system. The control system controls the driver (64) and the vertical cylinder (61) to stop working to obtain the assembly; Step 4, Separate the screwing head (50) from the swash plate seat The control system controls the vertical cylinder (61) to retract the piston rod. The piston rod of the vertical cylinder (61) drives the vertical slide (63), the driver (64), and the screwing head (50) to ascend. The elastic limiting member (11) separates from the central sleeve (30) or the bushing until the screwing head (50) returns to the initial position again; Step 5, Remove the assembly Loosen the disc chuck (41), and take the assembly out of the disc chuck (41) of the lower base (40).

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