Compressor connecting rod polishing mechanism

By coordinating the 180° rotary table and the linear conveyor mechanism, continuous automated grinding of the compressor connecting rod weld is achieved, solving the problem of long processing cycles in traditional grinding methods and improving production efficiency.

CN223933270UActive Publication Date: 2026-02-24WUXI JIQUAN HARDWARE MASCH CO LTD
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Patent Information

Application Number
CN202520578996.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-02-24
Estimated Expiration
2035-03-31

AI Technical Summary

Technical Problem

Traditional methods for grinding the weld seams of compressor connecting rods require repeated adjustments to the workpiece position or changes in clamping direction, resulting in long processing cycles and difficulty in improving production efficiency.

Method used

A compressor linkage grinding mechanism with a 180° rotating table and a linear conveyor working in tandem enables continuous automated grinding of double-end welds, eliminating the need for manual flipping or repetitive positioning steps.

Benefits of technology

Grinding efficiency has increased by more than 50%, thus improving production efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223933270U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of compressor part production equipment, in particular to a compressor connecting rod polishing mechanism which comprises a lifting mechanism. The polishing mechanism body is connected to the output end of the lifting mechanism and can be driven by the lifting mechanism to do vertical lifting motion; the linear sliding table is horizontally arranged below the lifting mechanism; the bearing platform is arranged at the output end of the linear sliding table and can be driven by the linear sliding table to do linear reciprocating motion; the rotating table is arranged on the bearing platform; and the two bearing rollers are arranged on the rotating table in parallel, and at least one bearing roller is connected with a rotating driving motor. Compared with the prior art, through cooperation of the 180-degree rotating table and the linear conveying mechanism, continuous and automatic grinding of double-end welding seams is achieved, the step of manual overturning or repeated positioning is omitted, and the grinding efficiency is improved by 50% or above.
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Description

Technical Field

[0001] This utility model relates to the field of compressor parts manufacturing equipment, specifically to a compressor connecting rod grinding mechanism. Background Technology

[0002] In the manufacturing process of compressor connecting rods, welding is typically used to connect two ball joints to a central cylinder. After welding, the weld area needs to be ground to ensure surface smoothness, remove burrs, and meet assembly accuracy requirements. Traditional grinding methods usually grind the welds at both ends of the connecting rod separately. This requires repeated adjustments to the workpiece position or changes in clamping direction, resulting in long processing cycles and difficulty in improving production efficiency. Utility Model Content

[0003] In view of the above, the purpose of this utility model is to provide a compressor connecting rod grinding mechanism to address the problems of the prior art.

[0004] A compressor connecting rod grinding mechanism in this solution includes:

[0005] Lifting mechanism;

[0006] The grinding mechanism body is connected to the output end of the lifting mechanism and is driven by the lifting mechanism to perform vertical lifting movements;

[0007] The linear slide is horizontally positioned below the lifting mechanism;

[0008] The support platform is located at the output end of the linear slide table and is driven by the linear slide table to move linearly back and forth.

[0009] A rotary table, mounted on a support platform;

[0010] Two parallel support rollers are set on a rotating platform, and at least one support roller is connected to a rotary drive motor.

[0011] Furthermore, the lifting mechanism includes a lifting base, a guide rail, a lead screw, a lifting slide, and a lead screw drive motor. The guide rail is installed on the lifting base, the lifting slide slide is slidably engaged with the guide rail, the lead screw is installed on the lifting base and connected to a lead screw nut at the bottom of the lifting slide, and the lead screw drive motor is connected to the lead screw drive motor.

[0012] Furthermore, the grinding mechanism body includes a grinding wheel motor and a grinding wheel driven by it, and the working surface of the grinding wheel is adapted to the shape of the area to be ground of the connecting rod weld.

[0013] Furthermore, the rotary table includes a pneumatic indexing plate and a base plate mounted on the pneumatic indexing plate.

[0014] Furthermore, the support platform is also equipped with a positioning device, including a lifting cylinder and a lifting rod driven by it, and the base plate is provided with two positioning holes corresponding to the lifting rod.

[0015] Furthermore, the surface of the bearing roller is covered with a rubber sleeve.

[0016] Compared with existing technologies, this application achieves continuous automated grinding of double-end welds through the coordinated operation of a 180° rotating table and a linear conveying mechanism, eliminating the need for manual flipping or repeated positioning steps, and improving grinding efficiency by more than 50%. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this application;

[0018] Figure 2 This is a schematic diagram of the assembly structure of the lifting mechanism and the grinding mechanism body of this application;

[0019] Figure 3 A schematic diagram of a linear slide and its related structures;

[0020] Reference numerals: 1. Lifting mechanism; 101. Lifting base; 102. Guide rail; 103. Lead screw; 104. Lifting slide; 105. Lead screw drive motor; 106. Lead screw nut; 2. Grinding mechanism body; 201. Grinding wheel motor; 202. Grinding wheel; 3. Linear slide; 4. Bearing platform; 5. Rotary table; 501. Pneumatic indexing plate; 502. Base plate; 502a. Positioning hole; 6. Bearing roller; 7. Rotary drive motor. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Reference Figures 1 to 3 The compressor connecting rod grinding mechanism shown includes a lifting mechanism 1, a grinding mechanism body 2, a linear slide 3, a bearing platform 4, a rotary table 5, and a bearing roller 6.

[0023] Lifting Mechanism 1: This mechanism is mainly used to drive the grinding mechanism body 2 to move vertically. It consists of a lifting base 101, a guide rail 102, a lead screw 103, a lifting slide 104, and a lead screw drive motor 105. The guide rail 102 is firmly mounted on the lifting base 101, and the lifting slide 104 slides smoothly against the guide rail 102, ensuring stable vertical movement of the lifting slide 104. The lead screw 103 is mounted on the base and connected to a lead screw nut 106 at the bottom of the lifting slide 104. The lead screw drive motor 105 is connected to the lead screw 103. When the lead screw drive motor 105 starts, it drives the lead screw 103 to rotate, causing the lead screw nut 106 to move up and down along the lead screw 103, thus achieving the vertical lifting of the lifting slide 104.

[0024] Grinding mechanism body 2: Connected to the output end of lifting mechanism 1, namely lifting slide 104. When lifting mechanism 1 is working, it can drive grinding mechanism body 2 to perform vertical lifting and lowering movements. Grinding mechanism body 2 includes grinding wheel motor 201 and grinding wheel 202 driven by it. Grinding wheel motor 201 provides power for the rotation of grinding wheel 202, and the working surface of grinding wheel 202 is adapted to the shape of the area to be ground of the connecting rod weld. This ensures that during the grinding process, grinding wheel 202 can better fit the weld and improve the grinding effect.

[0025] Linear slide 3: Horizontally positioned below the lifting mechanism 1, its main function is to drive the support platform 4 to move linearly back and forth. Linear slide 3 possesses high precision and stability, ensuring that the support platform 4 moves accurately to the designated position.

[0026] The support platform 4 is located at the output end of the linear slide 3 and is driven by the linear slide 3 to move linearly back and forth in the horizontal direction. The support platform 4 is equipped with a positioning device, which includes a lifting cylinder and a lifting rod driven by it. The function of the positioning device is to accurately position the rotary table 5 placed on the support platform 4, that is, the base plate 502 of the rotary table 5, to ensure that the connecting rod is displaced during the grinding process.

[0027] Rotary stage 5: Located on the support platform 4, it includes a pneumatic indexing plate 501 and a base plate 502 mounted on the pneumatic indexing plate 501. The pneumatic indexing plate 501 can achieve precise angular rotation. By controlling the rotation angle of the pneumatic indexing plate 501, the grinding accuracy can be improved. The base plate 502 is provided with two positioning holes 502a corresponding to the lifting rod. When the lifting rod is inserted into the positioning holes 502a, the rotary stage 5 can be fixed to prevent it from shifting during the grinding process.

[0028] Carrying roller 6: Two parallel carrying rollers 6 are provided on the rotary table 5, and at least one carrying roller 6 is connected to a rotary drive motor 7. The surface of the carrying roller 6 is covered with a rubber sleeve, which increases the friction between the carrying roller and the connecting rod, allowing the connecting rod to rotate more stably under the drive of the carrying roller 6. The rotary drive motor 7 drives the carrying roller 6 to rotate, which in turn drives the connecting rod placed on the carrying roller 6 to rotate, thereby achieving circumferential grinding of the connecting rod weld.

[0029] The compressor connecting rod grinding method includes the following specific steps:

[0030] S1. Loading / Unloading Station Preparation: The linear slide 3 moves the carrying platform 4 to the loading / unloading station, which is the location for loading and unloading connecting rods. At this time, the equipment is ready to receive new connecting rods.

[0031] S2. Placing the connecting rod: The connecting rod can be placed on the bearing roller 6 manually or by a robotic arm.

[0032] S3. Grinding the first weld: The supporting platform 4 moves to the grinding station under the drive of the linear slide 3. After reaching the grinding station, the lifting mechanism 1 starts to work, and the lead screw drive motor 105 drives the lead screw 103 to rotate, so that the lifting slide 104 drives the grinding mechanism body 2 to descend until the grinding wheel 202 contacts the first weld of the connecting rod.

[0033] S4. Circumferential Grinding of the First Weld Seam: The rotary drive motor 7 starts, driving the bearing roller 6 to rotate. Because the surface of the bearing roller 6 is covered with a rubber sleeve, there is sufficient friction between it and the connecting rod, so the rotation of the bearing roller 6 can drive the connecting rod to rotate. During the rotation of the connecting rod, the grinding wheel 202 continuously grinds the first weld seam circumferentially, ensuring that all parts of the weld seam are uniformly ground.

[0034] S5. Grinding the second weld: After grinding the first weld, the lifting mechanism 1 resets, i.e., the lead screw drive motor 105 reverses, causing the lifting slide 104 to drive the grinding mechanism body 2 to rise back to its initial position. Then, the pneumatic indexing plate 501 drives the rotary table 5 to rotate 180°, aligning the second weld of the connecting rod with the grinding wheel 202. Afterwards, steps S3 and S4 are repeated to grind the second weld.

[0035] S6. Unloading: After the second weld seam is ground, the linear slide 3 drives the bearing platform 4 back to the loading / unloading station. At this time, the ground connecting rod can be removed from the bearing roller 6 manually or by a robot to complete the unloading operation.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A compressor connecting rod grinding mechanism, characterized in that, include: Lifting mechanism (1); The grinding mechanism body (2) is connected to the output end of the lifting mechanism (1) and is driven by the lifting mechanism (1) to perform vertical lifting motion; A linear slide (3) is horizontally positioned below the lifting mechanism (1); The support platform (4) is located at the output end of the linear slide (3) and is driven by the linear slide (3) to move linearly back and forth. A rotating platform (5) is mounted on a support platform (4); Two parallel carrier rollers (6) are set on a rotary table (5), and at least one carrier roller (6) is connected to a rotary drive motor (7).

2. The compressor connecting rod grinding mechanism according to claim 1, characterized in that: The lifting mechanism (1) includes a lifting base (101), a guide rail (102), a lead screw (103), a lifting slide (104), and a lead screw drive motor (105). The guide rail (102) is installed on the lifting base (101), the lifting slide (104) is slidably engaged with the guide rail (102), the lead screw (103) is installed on the lifting base (101) and connected to the lead screw nut (106) provided at the bottom of the lifting slide (104), and the lead screw drive motor (105) is connected to the lead screw (103) in a transmission connection.

3. The compressor connecting rod grinding mechanism according to claim 1, characterized in that: The grinding mechanism body (2) includes a grinding wheel motor (201) and a grinding wheel (202) driven by it. The working surface of the grinding wheel (202) is adapted to the shape of the area to be ground of the connecting rod weld.

4. The compressor connecting rod grinding mechanism according to claim 1, characterized in that: The rotary table (5) includes a pneumatic indexing plate (501) and a base plate (502) mounted on the pneumatic indexing plate (501).

5. A compressor connecting rod grinding mechanism according to claim 4, characterized in that: The carrying platform (4) is also provided with a positioning device, including a lifting cylinder and a lifting rod driven by it, and the base plate (502) is provided with two positioning holes (502a) corresponding to the lifting rod.

6. The compressor connecting rod grinding mechanism according to claim 1, characterized in that: The surface of the bearing roller (6) is covered with a rubber sleeve.