Automobile air conditioner compressor assembly tool

Abstract

The utility model discloses an automobile air conditioner compressor assembly tool relates to compressor assembly technical field, and the top surface both sides of workbench are symmetrically fixedly connected with two fixed plates, and the both sides of two fixed plates are equipped with slide bar, and the top between fixed plate and slide bar is fixedly connected with the top plate, the utility model discloses the cooperation of lifting plate and motor, plane spiral disc, clamping jaw, and motor drives plane spiral disc rotation, drives clamping jaw to do radial motion, is convenient for to the stable clamping of compressor upper portion, has improved the stability of compressor whole fixed, again through the cooperation of pull rod and jack, second spring, clamping block, and pull rod makes clamping block separate from the jack, is convenient for the height of flexible adjustment lifting plate, finally solved the problem that traditional tool only clamped compressor bottom leads to easy shaking, bottom clamping instability, the problem that assembly is influenced by big vibration, improved assembly accuracy, tool versatility, assembly quality, operation convenience and production safety.

Description

Technical Field

[0001] This utility model relates to the field of compressor assembly technology, and in particular to an assembly tooling for an automotive air conditioning compressor. Background Technology

[0002] In the manufacturing process of automotive air conditioning compressors, different car models have different requirements for the specifications and dimensions of the compressors, and the compressor assembly involves multiple precision processes. It is necessary to accurately position and reliably fix the parts in order to improve assembly efficiency and quality, reduce labor costs, and meet the large-scale and high-efficiency production needs of the automotive manufacturing industry.

[0003] However, existing automotive air conditioning compressor assembly fixtures typically use two clamps to hold and fix the bottom of the compressor. The working principle involves the two clamps moving towards each other at the bottom of the compressor, relying on the friction between the clamps and the compressor's bottom surface to achieve fixation. This clamping method is relatively simple to operate and can meet the assembly needs of some compressors with regular structures and even weight distribution. However, due to the diverse structures of automotive air conditioning compressors in different models, many compressors do not have even weight distribution at both ends, resulting in differences in the center of gravity. With the current method of clamping only the bottom, when the compressor's center of gravity is higher or has an irregular shape, the upper part lacks effective constraint, making it prone to shaking during assembly. This shaking not only affects assembly accuracy, leading to deviations in component installation positions and reducing the compressor's assembly quality, but also increases the assembly difficulty and workload for operators, reducing assembly efficiency and making it difficult to meet the large-scale, high-quality production requirements of the automotive manufacturing industry. Therefore, improvements are needed to address these issues. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an assembly tooling for automotive air conditioning compressors.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an assembly fixture for an automotive air conditioning compressor, comprising a workbench, two fixed plates symmetrically fixed to both sides of the top surface of the workbench, slide rods on both sides of the two fixed plates, a top plate fixed between the fixed plates and the top of the slide rods, a lifting plate sleeved between the two fixed plates and the four slide rods, a motor installed in the middle of the top surface of the lifting plate, and a clamping assembly located between the two fixed plates on the top surface of the workbench.

[0006] A first spring is sleeved on the slide rod. The bottom end of the first spring is fixedly connected to the workbench, and the top end of the first spring is fixedly connected to the bottom surface of the fixed plate.

[0007] Preferably, multiple insertion holes are equidistantly provided on the opposite surfaces of the two fixed plates, and a pull rod is movably provided at the middle of both ends of the lifting plate. One end of the pull rod extends into the fixed plate, and a second spring is sleeved on the rod body inside the fixed plate. A locking block that is inserted into the insertion hole is fixedly connected to one end of the pull rod.

[0008] Preferably, a mounting plate is bolted to the center of the bottom surface of the lifting plate. The bottom surface of the mounting plate has multiple guide grooves arranged in a cross shape. A slider is slidably mounted in the guide groove. One end of the slider is fixedly connected to a claw, which is arc-shaped. The other end of the slider is slidably mounted on a spiral guide bar on a planar spiral disk. The planar spiral disk is coaxially fixed to the output shaft of the motor.

[0009] Preferably, the clamping assembly includes a fixed frame, with two clamping blocks facing each other inside the fixed frame. Two coaxial lead screws are respectively sleeved on the bottom end of the clamping blocks. Driven bevel gears are fixedly connected to the opposite ends of the two lead screws. A driving bevel gear is meshed on one side of the two driven bevel gears. A sliding groove is opened on the worktable at the lead screw.

[0010] Preferably, a transmission rod is coaxially fixed to one end of the driving bevel gear, a rotating groove is provided in the worktable, the rotating groove has a T-shaped cross-section, a knob is coaxially fixed to one end of the transmission rod, the top part of the knob extends out of the top surface of the worktable, and anti-slip texture is provided on the knob.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the cooperation of a lifting plate with a motor, a flat spiral disk, and grippers, allows the motor to drive the flat spiral disk to rotate, causing the grippers to move radially. This facilitates stable clamping of the upper part of the compressor, improving the overall stability of the compressor and enabling effective constraint of compressors with a high center of gravity or irregular shapes. Furthermore, through the cooperation of a pull rod with a socket, a second spring, and a locking block, pulling the pull rod disengages the locking block from the socket, facilitating flexible adjustment of the lifting plate height and improving the tooling's adaptability to different compressor specifications. This allows it to meet the assembly needs of compressors of various specifications. Finally, through the cooperation of a driving bevel gear with a driven bevel gear, a lead screw, and grippers, rotating the driving bevel gear drives the lead screw to rotate, causing the grippers to move in opposite directions within the fixed frame. This facilitates stable clamping of the compressor bottom, improving the reliability of bottom clamping and enabling effective clamping of the compressor bottom. The system features precise positioning of the compressor assembly. Furthermore, the first spring, working in conjunction with the slide rod, acts as a buffer and shock absorber during operation, reducing the impact of vibration on the compressor's assembly accuracy and improving the stability of the assembly process, thus ensuring the compressor's assembly quality. Finally, the combination of a rotary dial, transmission rod, and drive bevel gear allows the operator to manually control the movement of the clamping blocks, improving ease of operation and enabling rapid adjustment of clamping force. The arc-shaped jaws, designed to fit the compressor's shape, enhance the clamping's fit and prevent the compressor from falling during assembly. Ultimately, this system solves the problems of traditional tooling that only clamps the compressor's bottom, leading to easy wobbling, unstable bottom clamping, and significant vibration impact on assembly. This improves assembly accuracy, tooling versatility, assembly quality, operational convenience, and production safety. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0013] Figure 1 This is a first-view schematic diagram of the overall structure proposed in this utility model;

[0014] Figure 2 This is a partial cross-sectional view of the workbench proposed in this utility model;

[0015] Figure 3 This is a partial cross-sectional view of the lifting plate proposed in this utility model;

[0016] Figure 4 This is a partial cross-sectional view of the mounting plate proposed in this utility model.

[0017] The numbers in the diagram are: 1. Workbench; 2. Lifting plate; 3. Fixed plate; 4. Slide rod; 5. First spring; 6. Motor; 7. Knob; 8. Drive bevel gear; 9. Lead screw; 10. Pull rod; 11. Second spring; 12. Clamping block; 13. Mounting plate; 14. Gripper; 15. Slider; 16. Flat spiral disk; 17. Clamping block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Example: See Figure 1-4This utility model discloses an assembly fixture for an automotive air conditioning compressor, comprising a workbench 1. Two fixed plates 3 are symmetrically fixed to both sides of the top surface of the workbench 1. Sliding rods 4 are provided on both sides of each fixed plate 3. A top plate is fixedly connected between the top ends of the fixed plates 3 and the sliding rods 4. A lifting plate 2 is sleeved between the two fixed plates 3 and the four sliding rods 4. A motor 6 is installed in the center of the top surface of the lifting plate 2. A clamping assembly is located on the top surface of the workbench 1 between the two fixed plates 3. This structure forms a stable frame structure through the fixed plates 3, sliding rods 4, and top plate, providing sliding guidance for the lifting plate 2, facilitating adjustment of the working height, and improving the adaptability of the fixture. The adaptability allows for the assembly of compressors at different heights; the motor 6 provides power for the action of the gripper 14, improving the automation level of the operation and enabling the rapid gripping and release of compressor parts; the worktable 1 is made of HT200 gray cast iron, which has good rigidity and shock absorption performance; the fixed plate 3 and the top plate are welded from Q235 steel plates, which have high strength and good stability; a first spring 5 is sleeved on the slide rod 4, with the bottom end of the first spring 5 fixedly connected to the worktable 1 and the top end of the first spring 5 fixedly connected to the bottom surface of the fixed plate 3; the first spring 5 acts as a buffer during the tooling operation. The first spring 5 has a shock-absorbing effect, reducing the impact of vibration on the compressor assembly precision, improving assembly stability, and thus ensuring the compressor assembly quality. Simultaneously, the first spring 5 can absorb some impact force, extending the tooling's service life and reducing maintenance costs. The first spring 5 is made of 60Si2Mn spring steel with an elastic modulus of 200GPa, capable of withstanding significant impact force and repeated compression. Multiple insertion holes are equidistantly opened on the opposing surfaces of the two fixed plates 3. A pull rod 10 is movably installed at the center of both ends of the lifting plate 2, with one end of the pull rod 10 extending into the fixed plate 3. The pull rod 10 is located within the fixed plate 3. A second spring 11 is fitted onto the body, and a locking block 12 is fixedly connected to one end of the pull rod 10 and inserted into the insertion hole. By pulling the pull rod 10, the second spring 11 is compressed, causing the locking block 12 to disengage from the insertion hole, which facilitates the adjustment of the height of the lifting plate 2 and improves the flexibility of height adjustment, thereby adapting to the assembly requirements of compressors of different sizes. After the pull rod 10 is released, the second spring 11 pushes the locking block 12 into the insertion hole, firmly fixing the lifting plate 2, improving the stability of the lifting plate 2, and thus ensuring the reliability of the assembly process. The second spring 11 is made of 50CrVA spring steel, which has high fatigue strength and anti-relaxation performance.

[0020] In this invention, a mounting plate 13 is bolted to the center of the bottom surface of the lifting plate 2. Multiple guide grooves are arranged in a cross pattern on the bottom surface of the mounting plate 13. A slider 15 slides within these guide grooves. One end of the slider 15 is fixedly connected to a gripper 14, which is arc-shaped. The other end of the slider 15 slides on a spiral guide bar on a planar spiral disk 16. The planar spiral disk 16 is coaxially fixed to the output shaft of the motor 6. The motor 6 drives the planar spiral disk 16 to rotate. Through the cooperation of the spiral guide bar and the slider 15, the slider 15 slides within the guide grooves, causing the gripper 14 to move radially. This facilitates the synchronous opening and closing of the gripper 14 and improves the coordination of its movements. The design of the arc-shaped gripper 14 is adapted to the shape of the compressor parts, improving the stability of the gripping and preventing the parts from falling off during assembly. The flat spiral disk 16 is made of 45 steel with a hardness of HB220-250, which has good wear resistance and machinability. The gripping assembly includes a fixed frame with two opposing clamping blocks 17 inside. The bottom of each clamping block 17 is fitted with two coaxial lead screws 9. The opposite ends of the two lead screws 9 are fixed with driven bevel gears. One side of each driven bevel gear is meshed with a driving bevel gear 8. The worktable 1 has a sliding groove at the lead screw 9. The driving bevel gear 8, through meshing with the driven bevel gear, drives the two lead screws 9 to rotate synchronously, causing the two clamping blocks 17 to move in opposite directions within the fixed frame. This facilitates clamping and releasing the compressor, improving operational convenience and enabling quick fixing and disassembly of the compressor. The coaxial arrangement of the two lead screws 9 ensures the synchronous movement of the two clamping blocks 17, improving clamping stability and ensuring the positional accuracy of the compressor during assembly. The lead screws 9 use Tr36×6 trapezoidal threads, providing high transmission efficiency and good self-locking performance. A transmission rod is coaxially fixed to one end of the driving bevel gear 8. A rotating groove with a T-shaped cross-section is provided inside the worktable 1, and one end of the transmission rod is coaxially fixed to... The knob 7 has its top end protruding from the top surface of the workbench 1, and it has anti-slip textures. Rotating the knob 7 drives the transmission rod and the drive bevel gear 8 to rotate, making it easy for the operator to manually control the movement of the clamp 17 and improving operational flexibility. The T-shaped rotation groove design provides stable support for the transmission rod, improving transmission stability and ensuring the reliability of the movement of the clamp 17. The anti-slip textures on the knob 7 increase the friction between the hand and the knob 7, making it easier for the operator to apply force, improving operational comfort, and reducing the operator's labor intensity. The knob 7 is injection molded from ABS engineering plastic and has an anti-slip surface treatment.

[0021] Working principle: When using this utility model, first place the compressor to be assembled on the clamping assembly on the workbench 1, rotate the knob disk 7, the knob disk 7 drives the transmission rod to rotate, and the driving bevel gear 8 on the transmission rod rotates accordingly. Through meshing with the driven bevel gear, the two lead screws 9 rotate synchronously, causing the two clamping blocks 17 in the fixed frame to slide in opposite directions and clamp the compressor; then, pull the pull rods 10 at both ends of the lifting plate 2, the pull rods 10 drive the locking block 12 to compress the second spring 11, causing the locking block 12 to move from the fixed plate 3. After disengaging from the socket, adjust the lifting plate 2 to a suitable height along the slide rod 4 and release the pull rod 10. The second spring 11 pushes the locking block 12 to re-insert into the socket to fix the lifting plate 2. Finally, start the motor 6. The output shaft of the motor 6 drives the flat spiral disk 16 to rotate. The spiral guide strip on the flat spiral disk 16 cooperates with the slider 15, so that the slider 15 slides in the guide groove on the bottom surface of the mounting plate 13, driving the arc-shaped gripper 14 to make radial movement, thereby realizing the gripping or release of the compressor parts. At this point, the use of the device is completed.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An assembly fixture for an automotive air conditioning compressor, comprising a workbench (1), characterized in that: Two fixed plates (3) are symmetrically fixed on both sides of the top surface of the workbench (1). Slide rods (4) are provided on both sides of the two fixed plates (3). A top plate is fixed between the top of the fixed plates (3) and the slide rods (4). A lifting plate (2) is sleeved between the two fixed plates (3) and the four slide rods (4). A motor (6) is installed in the middle of the top surface of the lifting plate (2). A clamping assembly is provided on the top surface of the workbench (1) between the two fixed plates (3).

2. The automotive air conditioning compressor assembly fixture according to claim 1, characterized in that: A first spring (5) is sleeved on the slide rod (4). The bottom end of the first spring (5) is fixed to the workbench (1), and the top end of the first spring (5) is fixed to the bottom surface of the fixing plate (3).

3. The automotive air conditioning compressor assembly fixture according to claim 2, characterized in that: Multiple insertion holes are equally spaced on the opposite surfaces of the two fixed plates (3). A pull rod (10) is movably provided at the middle of both ends of the lifting plate (2). One end of the pull rod (10) extends into the fixed plate (3). A second spring (11) is sleeved on the rod body of the pull rod (10) located in the fixed plate (3). A locking block (12) inserted into the insertion hole is fixedly connected to one end of the pull rod (10).

4. The automotive air conditioning compressor assembly fixture according to claim 3, characterized in that: The lifting plate (2) is bolted to the middle of the bottom surface and a mounting plate (13) is provided. The bottom surface of the mounting plate (13) has multiple guide grooves arranged in a cross shape. A slider (15) is slidably provided in the guide groove. One end of the slider (15) is fixedly connected to a claw (14). The claw (14) is arc-shaped. The other end of the slider (15) is slidably set on a spiral guide bar on a planar spiral disk (16). The planar spiral disk (16) is coaxially fixedly connected to the output shaft of the motor (6).

5. The automotive air conditioning compressor assembly fixture according to claim 4, characterized in that: The clamping assembly includes a fixed frame, and two clamping blocks (17) are arranged opposite each other in the fixed frame. Two coaxial lead screws (9) are respectively sleeved at the bottom of the clamping blocks (17). A driven bevel gear is fixedly connected to the opposite end of the two lead screws (9). A driving bevel gear (8) is meshed on one side of the two driven bevel gears. A sliding groove is opened on the worktable (1) at the lead screw (9).

6. The automotive air conditioning compressor assembly fixture according to claim 5, characterized in that: One end of the active bevel gear (8) is coaxially fixed to a transmission rod. A rotating groove is provided in the worktable (1). The rotating groove has a T-shaped cross section. One end of the transmission rod is coaxially fixed to a knob disk (7). The top part of the knob disk (7) extends out of the top surface of the worktable (1). Anti-slip textures are provided on the knob disk (7).

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