A riveting platform for compressor crankshaft

By setting slide rails and multiple positioning mechanisms on the riveting platform, combined with snap-fit ​​components and lifting guide rails, the compatibility problem of multi-specification compressor crankshafts is solved, and stable and precise riveting processing is achieved.

CN224586906UActive Publication Date: 2026-08-04HUAIAN XINSHENG COMPRESSOR PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUAIAN XINSHENG COMPRESSOR PARTS CO LTD
Filing Date
2025-06-17
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing riveting platforms are difficult to adapt to compressor crankshafts of various sizes and specifications, and it is difficult to meet the processing requirements of different connection positions during riveting.

Method used

A riveting platform was designed, comprising a workpiece platform, slide rails, positioning mechanisms, snap-fit ​​components, and a riveting machine. The platform achieves stable positioning and angle adjustment of multi-specification compressor crankshafts through multiple positioning mechanisms and snap-fit ​​components on the slide rails. Combined with the use of lifting guide rails and turntables, flexible riveting operations are achieved.

Benefits of technology

It achieves stable and precise positioning of compressor crankshafts of different specifications, improves the stability and accuracy of riveting, and is simple and convenient to operate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of compressor crankshaft processing, specifically relates to a riveting platform for compressor crankshaft, sets up workpiece platform below the riveting machine, is used for positioning the compressor crankshaft to be processed, ensures the stability and processing accuracy of riveting processing. And set up a plurality of positioning mechanisms on the workpiece platform, each positioning mechanism is equipped with a different positioning clamp, therefore can choose different positioning mechanisms according to the different size specifications or different placement mode of compressor crankshaft, can well adapt to various actual conditions. Set up an annular slide rail on the workpiece platform, and all positioning mechanisms are slidingly connected on the slide rail. Moreover, a plurality of buckle assemblies are arranged between the positioning mechanism and the slide rail, one of which is arranged directly below the riveting machine. The positioning mechanism carrying the compressor crankshaft can be moved to the position directly below the riveting machine and fixed, and the turntable in the positioning mechanism can better and more conveniently adjust the position angle of the compressor crankshaft.
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Description

Technical Field

[0001] This utility model relates to the field of compressor crankshaft machining technology, and in particular to a riveting platform for compressor crankshafts. Background Technology

[0002] Riveting is a cold working process that uses pressure to cause plastic deformation of rivets or riveted parts, thereby achieving a permanent mechanical connection between two or more components. To ensure the stability and precision of the riveting operation, a riveting platform is typically used to assist in the process. A riveting platform (also called a riveting workbench or welding platform) is a worktable specifically designed for riveting and welding processes. It provides stable support and precise positioning for the compressor crankshaft, ensuring the accuracy and efficiency of compressor crankshaft riveting.

[0003] However, compressor crankshafts come in many specifications, such as 1P, 2.5P, and 3P crankshafts suitable for small compressors, and 5P and higher power crankshafts for medium to large compressors. Different specifications of compressor crankshafts have different dimensions, so the fixtures or positioning tools on the riveting platform may not be compatible during riveting. Furthermore, processing different connection positions of the compressor crankshaft during riveting requires different placement of the crankshaft, thus placing additional requirements on the fixtures or positioning tools.

[0004] The current conventional riveting platform is difficult to adapt well to the riveting operation of compressor crankshafts of various sizes. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose a riveting platform for compressor crankshafts to solve the technical problems in the prior art.

[0006] To achieve the above objectives, this utility model provides a riveting platform for a compressor crankshaft, including a riveting machine for riveting, and the riveting platform further includes:

[0007] A workpiece platform is located below the riveting machine, and a ring-shaped slide rail is fixedly connected to the workpiece platform;

[0008] A positioning mechanism is slidably connected to the slide rail, and there are several positioning mechanisms, each of which is equipped with a different positioning fixture;

[0009] A latching assembly is provided between the positioning mechanism and the slide rail to lock the positioning mechanism onto the slide rail. Multiple latching assemblies are provided, one of which is located directly below the riveting machine.

[0010] Furthermore, the riveting machine is mounted on the workpiece platform via a bracket, the bracket is fixedly connected to the workpiece platform, and a lifting guide rail is also fixedly connected to the bracket. The riveting machine is slidably connected to the bracket via the lifting guide rail.

[0011] Furthermore, the bracket is also equipped with a fixing knob, and a screw is fixedly connected to the inner end of the fixing knob. The screw is threaded inside the bracket, and the inner end of the screw abuts against the riveting machine.

[0012] Furthermore, the positioning mechanism includes a connecting slider and a turntable. The connecting slider is slidably connected to a slide rail, the turntable is rotatably connected to the slider, and the positioning clamp is disposed on the top of the turntable.

[0013] Furthermore, the buckle assembly includes a locking block disposed inside the connecting sliding member and a connecting groove disposed on the slide rail that mates with the locking block. The locking block is engaged in the connecting groove to keep the sliding member and the slide rail fixed. The locking block is telescopically disposed on the connecting sliding member, and the front and rear ends of the locking block are provided with arc-shaped chamfers.

[0014] Furthermore, a rotating shaft is fixedly connected to the bottom of the turntable, and a number of retractable ball bearings are provided on the outer wall of the rotating shaft. The top of the connecting sliding member is provided with a connecting groove that mates with the rotating shaft, and the inner side wall of the groove is provided with a connecting groove that mates with the ball bearings.

[0015] Furthermore, the connecting slider is provided with a movable groove for placing the card block, the inner end of the card block is slidably connected in the movable groove, and the movable groove is also provided with a card block spring, the two ends of the card block spring being connected to the connecting slider and the card block respectively.

[0016] Furthermore, the rotating shaft is provided with a movable groove for placing a ball bearing, the ball bearing is located in the movable groove, and a part of the ball bearing protrudes from the movable groove. A sliding plate is slidably connected in the movable groove, the ball bearing rests against the sliding plate, and a ball spring is provided in the movable groove, with the two ends of the ball spring connected to the rotating shaft and the sliding plate respectively.

[0017] The beneficial effects of this utility model are as follows: 1. A workpiece platform is set below the riveting machine to position the compressor crankshaft to be processed, ensuring the stability and accuracy of the riveting process. Multiple positioning mechanisms are set on the workpiece platform, each with a different positioning fixture. Therefore, different positioning mechanisms can be selected according to the different sizes or placement methods of the compressor crankshaft, effectively adapting to various practical situations.

[0018] 2. A circular slide rail is installed on the workpiece platform, and all positioning mechanisms are slidably connected to the slide rail, facilitating the movement of the positioning mechanisms below the riveting machine for riveting operations. Furthermore, multiple snap-fit ​​components are installed between the positioning mechanisms and the slide rail, one of which is located directly below the riveting machine. This allows the positioning mechanism, which carries the compressor crankshaft, to be moved directly below and fixed to the riveting machine. The turntable within the positioning mechanism allows for easier adjustment of the compressor crankshaft's position and angle.

[0019] 3. The locking assembly is secured by the locking block and the corresponding connecting slot. The locking block spring pushes it into the corresponding connecting slot, ensuring the positioning mechanism remains basically stable. The locking block is telescopic, and its front and rear ends have rounded chamfers. Therefore, when subjected to a large pushing force, the locking block automatically retracts, allowing the positioning mechanism to move. The rotation of the turntable works similarly, making operation simple and convenient. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure and principle of the device of this utility model.

[0022] Figure 2 This is a schematic diagram of the structural principle of the device from another perspective.

[0023] Figure 3 This is a schematic diagram of the positioning mechanism in the device of this utility model.

[0024] Figure 4 This is a schematic diagram of the turntable part in the device of this utility model.

[0025] Figure 5 This is a schematic diagram of the internal structure of the positioning mechanism in the device of this utility model.

[0026] Figure 6 for Figure 5 Enlarged view of section A.

[0027] The diagram is marked as follows:

[0028] 101. Riveting machine; 102. Bracket; 103. Guide rail; 104. Fixing knob; 105. Platform; 106. Guide rail; 107. Positioning mechanism; 108. Connecting sliding part; 109. Locking block; 110. Turntable; 111. Rotating shaft; 112. Ball bearing; 113. Slide plate; 114. Ball spring; 115. Locking block spring. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0030] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] The first aspect of this utility model is as follows: Figure 1 and Figure 2 As shown, since compressor crankshafts come in many specifications and have different dimensions, the carrier or positioning fixture on the riveting platform may not be compatible during riveting. Therefore, this invention provides a workpiece platform 105 below the riveting machine 101 used for riveting.

[0032] A ring-shaped slide rail 106 is fixedly connected to the workpiece platform 105. A positioning mechanism 107 is slidably connected to the ring-shaped slide rail 106. Several positioning mechanisms 107 are provided, and each positioning mechanism 107 is provided with a different positioning fixture.

[0033] A workpiece platform 105 is set below the riveting machine 101 to position the compressor crankshaft to be processed, ensuring the stability and accuracy of the riveting process. Multiple positioning mechanisms 107 are set on the workpiece platform 105, each with a different positioning fixture. Therefore, different positioning mechanisms 107 can be selected according to the different sizes or placement methods of the compressor crankshaft, which can well adapt to various actual situations.

[0034] The snap-fit ​​assembly between the positioning mechanism 107 and the slide rail 106 is used to snap the positioning mechanism 107 onto the slide rail 106. Multiple snap-fit ​​assemblies are provided, one of which is located directly below the riveting machine 101.

[0035] The workpiece platform 105 is equipped with a circular slide rail 106, and all positioning mechanisms 107 are slidably connected to the slide rail 106, facilitating the movement of the positioning mechanisms 107 below the riveting machine 101 for riveting operations. Furthermore, multiple snap-fit ​​components are provided between the positioning mechanisms 107 and the slide rail 106, one of which is located directly below the riveting machine 101. This allows the positioning mechanism 107, which carries the compressor crankshaft, to be moved directly below and fixed to the riveting machine 101. The turntable 110 within the positioning mechanism 107 allows for easier adjustment of the compressor crankshaft's position and angle.

[0036] In addition, the riveting machine 101 is mounted on the workpiece platform 105 via a bracket 102. The bracket 102 is fixedly connected to the workpiece platform 105, and a lifting guide rail 103 is also fixedly connected to the bracket 102. The riveting machine 101 is slidably connected to the bracket 102 via the lifting guide rail 103.

[0037] A fixing knob 104 is also provided on the bracket 102. A screw is fixedly connected to the inner end of the fixing knob 104. The screw is threaded inside the bracket 102, and the inner end of the screw abuts against the riveting machine 101.

[0038] Therefore, by rotating the fixing knob 104 in the reverse direction to prevent the screw from retracting and contacting the riveting machine 101, the riveting machine 101 can be moved up and down to be adjusted to a suitable position. When the fixing knob 104 is rotated in the forward direction to allow the screw to advance and press against the riveting machine 101, the riveting machine 101 can remain fixed.

[0039] The second aspect of this utility model is as follows: Figure 3 , Figure 4 , Figure 5 and Figure 2 As shown, during riveting, the compressor crankshaft needs to be positioned differently for different connection positions, thus requiring additional fixtures or positioning tools. Therefore, in this embodiment, the positioning mechanism 107 is configured to connect the sliding member 108 and the turntable 110.

[0040] The connecting slider 108 is slidably connected to the slide rail 106, and the turntable 110 is rotatably connected to the slider 108. The positioning clamp is located on the top of the turntable 110. The snap-fit ​​assembly includes a snap-fit ​​block 109 located inside the connecting slider 108 and a connecting groove on the slide rail 106 that mates with the snap-fit ​​block 109. The snap-fit ​​block 109 engages with the connecting groove to keep the slider 108 fixed to the slide rail 106. The snap-fit ​​block 109 is telescopically mounted on the connecting slider 108, and both ends of the snap-fit ​​block 109 have rounded chamfers.

[0041] The connecting slider 108 is provided with a movable groove for placing the locking block 109. The inner end of the locking block 109 is slidably connected in the movable groove, and the movable groove is also provided with a locking block spring 115. The two ends of the locking block spring 115 are respectively connected to the connecting slider 108 and the locking block 109.

[0042] The locking assembly is secured by the locking block 109 and its corresponding connecting slot. The locking block spring 115 pushes the locking block 109 into the corresponding connecting slot, ensuring the positioning mechanism 107 remains basically stable. However, the locking block 109 is telescopic, and its front and rear ends have rounded chamfers. Therefore, when subjected to a large pushing force, the locking block 109 automatically retracts, allowing the positioning mechanism 107 to move. Operation is simple and convenient.

[0043] Additionally, a rotating shaft 111 is fixedly connected to the bottom of the turntable 110. Several retractable ball bearings 112 are provided on the outer wall of the rotating shaft 111. The top of the connecting sliding member 108 is provided with a connecting groove that mates with the rotating shaft 111. The inner side wall of the groove is provided with a connecting groove that mates with the ball bearings 112.

[0044] The rotating shaft 111 has a movable groove for placing the ball bearing 112. The ball bearing 112 is located in the movable groove, and a part of the ball bearing 112 protrudes from the movable groove. A sliding plate 113 is slidably connected in the movable groove. The ball bearing 112 abuts against the sliding plate 113. A ball spring 114 is provided in the movable groove. The two ends of the ball spring 114 are respectively connected to the rotating shaft 111 and the sliding plate 113.

[0045] The rotation of turntable 110 works in the same way. When turntable 110 is subjected to a large force, the ball bearing 112 can automatically retract, allowing turntable 110 to rotate.

[0046] In summary, this utility model provides a workpiece platform 105 below the riveting machine 101 for positioning the compressor crankshaft to be processed, ensuring the stability and accuracy of the riveting process. Multiple positioning mechanisms 107 are provided on the workpiece platform 105, each with a different positioning fixture. Therefore, different positioning mechanisms 107 can be selected according to the different sizes or placement methods of the compressor crankshaft, effectively adapting to various practical situations.

[0047] A ring-shaped slide rail 106 is provided on the workpiece platform 105, and all positioning mechanisms 107 are slidably connected to the slide rail 106, facilitating the movement of the positioning mechanisms 107 below the riveting machine 101 for riveting operations. Furthermore, multiple snap-fit ​​components are provided between the positioning mechanisms 107 and the slide rail 106, one of which is located directly below the riveting machine 101. The positioning mechanism 107, which carries the compressor crankshaft, can be moved directly below the riveting machine 101 and fixed in place. The turntable 110 within the positioning mechanism 107 allows for easier adjustment of the compressor crankshaft's position and angle.

[0048] The locking assembly is secured by the locking block 109 and the corresponding connecting slot. The locking block spring 115 pushes the locking block 109 into the corresponding connecting slot, ensuring the positioning mechanism 107 remains basically stable. The locking block 109 is telescopic, and its front and rear ends have rounded chamfers. Therefore, when subjected to a large pushing force, the locking block 109 automatically retracts, allowing the positioning mechanism 107 to move. The rotation of the turntable 110 works similarly, making operation simple and convenient.

[0049] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention includes the claims being limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0050] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A riveting platform for a compressor crankshaft, comprising a riveting machine (101) for performing a rivet, characterized in that, The riveting platform also includes: A workpiece platform (105) is provided below the riveting machine (101), and an annular slide rail (106) is fixedly connected to the workpiece platform (105). A positioning mechanism (107) is slidably connected to the slide rail (106). Several positioning mechanisms (107) are provided, and each positioning mechanism (107) is provided with a different positioning fixture. A snap-fit ​​assembly is provided between the positioning mechanism (107) and the slide rail (106) to snap the positioning mechanism (107) onto the slide rail (106). Multiple snap-fit ​​assemblies are provided, one of which is located directly below the riveting machine (101).

2. A riveting platform for compressor crankshafts as defined in claim 1, wherein The riveting machine (101) is mounted on the workpiece platform (105) via a bracket (102). The bracket (102) is fixedly connected to the workpiece platform (105), and a lifting guide rail (103) is also fixedly connected to the bracket (102). The riveting machine (101) is slidably connected to the bracket (102) via the lifting guide rail (103).

3. A riveting platform for compressor crankshafts as defined in claim 2, wherein, The bracket (102) is also provided with a fixing knob (104), and a screw is fixedly connected to the inner end of the fixing knob (104). The screw is threaded inside the bracket (102), and the inner end of the screw abuts against the riveting machine (101).

4. The riveting platform for compressor crankshaft according to claim 1, characterized in that, The positioning mechanism (107) includes a connecting slide (108) and a turntable (110). The connecting slide (108) is slidably connected to the slide rail (106), and the turntable (110) is rotatably connected to the slide (108). The positioning fixture is located on the top of the turntable (110).

5. A riveting platform for compressor crankshafts as defined in claim 4 wherein, The buckle assembly includes a buckle block (109) disposed inside the connecting slide (108) and a connecting groove on the slide rail (106) that mates with the buckle block (109). The buckle block (109) is engaged in the connecting groove to keep the slide (108) and the slide rail (106) fixed. The buckle block (109) is telescopically disposed on the connecting slide (108), and the front and rear ends of the buckle block (109) are provided with arc-shaped chamfers.

6. A riveting platform for compressor crankshafts as defined in claim 4 wherein, The bottom of the turntable (110) is fixedly connected to a rotating shaft (111). The outer wall of the rotating shaft (111) is provided with several retractable ball bearings (112). The top of the connecting sliding member (108) is provided with a connecting groove that cooperates with the rotating shaft (111). The inner side wall of the groove is provided with a connecting groove that cooperates with the ball bearings (112).

7. A riveting platform for compressor crankshafts as defined in claim 5 wherein, The connecting slider (108) is provided with a movable groove for placing a locking block (109). The inner end of the locking block (109) is slidably connected in the movable groove, and a locking block spring (115) is also provided in the movable groove. The two ends of the locking block spring (115) are respectively connected to the connecting slider (108) and the locking block (109).

8. A riveting platform for compressor crankshafts as defined in claim 6 wherein, The rotating shaft (111) is provided with a movable groove for placing a ball (112). The ball (112) is located in the movable groove, and a part of the ball (112) protrudes from the movable groove. A sliding plate (113) is slidably connected in the movable groove. The ball (112) abuts against the sliding plate (113). A ball spring (114) is provided in the movable groove. The two ends of the ball spring (114) are respectively connected to the rotating shaft (111) and the sliding plate (113).