A machining positioning fixture for circular links

By designing a circular chain machining positioning fixture with a hydraulic telescopic rod and protective structure, the problem of existing fixtures being unable to adjust the clamping rod spacing was solved, enabling clamping, positioning, and position adjustment of chains of different lengths, thus meeting the painting needs of workers of different heights.

CN224443413UActive Publication Date: 2026-07-03SHANDONG ZHONGLIAN MINING MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG ZHONGLIAN MINING MASCH CO LTD
Filing Date
2025-08-01
Publication Date
2026-07-03

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    Figure CN224443413U_ABST
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Abstract

This utility model discloses a machining and positioning fixture for circular link chains, belonging to the field of circular link chain machining technology. It includes a base plate and a first hydraulic telescopic rod mounted on the base plate. A movable plate is mounted on the output end of the first hydraulic telescopic rod, and a connecting frame is mounted on the movable plate. A storage cavity is formed on the movable plate, and a second hydraulic telescopic rod is installed inside the storage cavity. A movable block is mounted on the output end of the second hydraulic telescopic rod. This utility model, by setting up the second hydraulic telescopic rod, drives the movable block to move, which in turn drives the slide to move, and then drives the clamping rods to move, thus adjusting the distance between the two clamping rods. This allows for clamping and positioning of circular link chains of different sizes. The first hydraulic telescopic rod, when activated, facilitates adjustment of the height of the movable plate, thereby adjusting the position of the circular link chain, making it convenient for workers of different heights to paint the circular link chains.
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Description

Technical Field

[0001] This utility model relates to a positioning fixture, and more particularly to a positioning fixture for machining circular links, belonging to the field of circular link machining technology. Background Technology

[0002] High-strength round link chains for mining are used as traction components in coal mine scraper conveyors. Their quality and performance directly affect the equipment's working efficiency and the coal mine's coal output. During the production process of round link chains, painting is required, and positioning fixtures are used to hold and position the chains during painting.

[0003] The existing machining and positioning fixtures for circular links are not convenient for adjusting the distance between the two clamps according to different chain lengths during actual use, and therefore cannot convenient for limiting the chain length. Utility Model Content

[0004] The main purpose of this invention is to solve the problem that it is not easy to adjust the distance between two clamping rods according to chains of different lengths, and to provide a machining positioning fixture for circular links.

[0005] The objective of this utility model can be achieved by adopting the following technical solution:

[0006] A machining and positioning fixture for a circular link chain includes a base plate and a first hydraulic telescopic rod mounted on the base plate. A movable plate is mounted on the output end of the first hydraulic telescopic rod, and a connecting frame is mounted on the movable plate. A storage cavity is formed on the movable plate, and a second hydraulic telescopic rod is installed inside the storage cavity. A movable block is mounted on the output end of the second hydraulic telescopic rod, and a slide is mounted on the movable block. Clamping rods are mounted on both the slide and the connecting frame.

[0007] Preferably, the carriage is equipped with a protective plate.

[0008] Preferably, the protective plate is connected to the carriage by a second bolt.

[0009] Preferably, the bottom of the base plate is equipped with multiple support legs, and the support legs are equipped with anti-slip pads.

[0010] Preferably, a guide rod is installed on the base plate, a guide ring is slidably installed on the guide rod, a side block is installed on the guide ring, a second connecting rod is installed on the side block, and one end of the second connecting rod is connected to the movable plate.

[0011] Preferably, a main protective cover is installed on the base plate, and an auxiliary protective cover is installed on the main protective cover.

[0012] Preferably, both the main protective cover and the auxiliary protective cover are equipped with a first connecting rod, and one end of the first connecting rod is equipped with a mounting plate, which is connected to the base plate by a first bolt.

[0013] Preferably, the auxiliary protective cover is equipped with a plug, and the main protective cover has a slot that cooperates with the plug.

[0014] The beneficial technical effects of this utility model are as follows:

[0015] 1. The circular link chain processing and positioning fixture of this utility model is provided with a second hydraulic telescopic rod. When the second hydraulic telescopic rod is activated, it drives the moving block to move. When the moving block moves, it drives the slide to move, which in turn drives the clamping rod to move. The distance between the two clamping rods is adjusted to clamp and position circular link chains of different sizes.

[0016] 2. By setting a first hydraulic telescopic rod, the height of the moving plate can be easily adjusted when the first hydraulic telescopic rod is activated, thereby adjusting the position of the circular chain, which makes it easier for workers of different heights to spray paint the circular chain. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the movable block structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the second hydraulic telescopic rod structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the main protective cover structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the insert block structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the auxiliary protective cover structure of this utility model.

[0023] In the diagram: 1. Base plate; 2. Support leg; 3. Main protective cover; 4. Auxiliary protective cover; 5. Mounting plate; 6. First connecting rod; 7. First bolt; 8. First hydraulic telescopic rod; 9. Moving plate; 10. Guide rod; 11. Guide ring; 12. Side block; 13. Second connecting rod; 14. Protective plate; 15. Connecting frame; 16. Clamping rod; 17. Slide; 18. Second bolt; 19. Second hydraulic telescopic rod; 20. Moving block; 21. Insert block. Detailed Implementation

[0024] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0025] like Figures 1-6 As shown, the circular link chain processing and positioning fixture provided in this embodiment includes a base plate 1 and a first hydraulic telescopic rod 8 mounted on the base plate 1. A movable plate 9 is mounted on the output end of the first hydraulic telescopic rod 8, and a connecting frame 15 is mounted on the movable plate 9. A storage cavity is opened on the movable plate 9, and a second hydraulic telescopic rod 19 is installed inside the storage cavity. A movable block 20 is mounted on the output end of the second hydraulic telescopic rod 19, and a slide 17 is mounted on the movable block 20. Both the slide 17 and the connecting frame 15 are equipped with clamping rods 16. By setting the second hydraulic telescopic rod 19, the second hydraulic telescopic rod 19 is activated, thereby driving the movable block 20 to move. When the movable block 20 moves, it drives the slide 17 to move, and then drives the clamping rods 16 to move, thereby adjusting the distance between the two clamping rods 16. Circular link chains of different sizes are clamped and positioned. By setting the first hydraulic telescopic rod 8, the activation of the first hydraulic telescopic rod 8 facilitates the adjustment of the height of the movable plate 9, thereby adjusting the position of the circular link chain, which makes it convenient for workers of different heights to paint the circular link chain.

[0026] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, a protective plate 14 is installed on the carriage 17. By setting the protective plate 14, the second hydraulic telescopic rod 19 can be protected, and the paint is less likely to stick to the second hydraulic telescopic rod 19. The protective plate 14 is connected to the carriage 17 by the second bolt 18. By setting the second bolt 18, the protective plate 14 can be easily removed for maintenance of the second hydraulic telescopic rod 19. Multiple support legs 2 are installed at the bottom of the base plate 1. Anti-slip pads are installed on the support legs 2. By setting the support legs 2, the base plate 1 can be easily supported. By setting the anti-slip pads, the friction of the support legs 2 can be increased.

[0027] In this embodiment, as Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6As shown, a guide rod 10 is installed on the base plate 1, a guide ring 11 is slidably installed on the guide rod 10, a side block 12 is installed on the guide ring 11, and a second connecting rod 13 is installed on the side block 12. One end of the second connecting rod 13 is connected to the moving plate 9. By setting the guide rod 10 and the guide ring 11 to slide together, the moving plate 9 can be easily guided and limited. A main protective cover 3 is installed on the base plate 1, and an auxiliary protective cover 4 is installed on the main protective cover 3. By setting the main protective cover 3 and the auxiliary protective cover 4, the first hydraulic telescopic rod 8 can be easily protected, and the paint can be protected. The liquid does not easily stick to the first hydraulic telescopic rod 8. The main protective cover 3 and the auxiliary protective cover 4 are both equipped with a first connecting rod 6. One end of the first connecting rod 6 is equipped with a mounting plate 5. The mounting plate 5 is connected to the base plate 1 by a first bolt 7. By setting the first bolt 7, it is easy to disassemble the main protective cover 3 and the auxiliary protective cover 4 to maintain the first hydraulic telescopic rod 8. The auxiliary protective cover 4 is equipped with a plug 21. The main protective cover 3 is provided with a slot that cooperates with the plug 21. By setting the plug 21 to engage with the slot, it is easy to connect the main protective cover 3 and the auxiliary protective cover 4.

[0028] In this embodiment, as Figures 1-6 As shown in the figure, the working process of the machining and positioning fixture for a circular link chain provided in this embodiment is as follows:

[0029] Step 1: Connect the two ends of the circular chain to each other. Start the second hydraulic telescopic rod 19 to drive the moving block 20 to move and adjust the position of the clamping rod 16. Put the circular chain on the clamping rod 16.

[0030] Step 2: The first hydraulic telescopic rod 8 is activated to move the moving plate 9. The height of the moving plate 9 is adjusted, and the staff spray paints the circular chain on the clamping rod 16.

[0031] In summary, in this embodiment, the circular link chain processing and positioning fixture, by setting a second hydraulic telescopic rod 19, activates the second hydraulic telescopic rod 19, thereby moving the moving block 20. The moving block 20 then moves the slide 17, which in turn moves the clamping rods 16, allowing adjustment of the distance between the two clamping rods 16. This enables clamping and positioning of circular link chains of different sizes. The first hydraulic telescopic rod 8, when activated, facilitates adjustment of the height of the moving plate 9, thereby adjusting the position of the circular link chain. This allows workers of different heights to easily paint the circular link chain. The protective plate 14 protects the second hydraulic telescopic rod 19, preventing paint from easily adhering to it. By setting the second bolt 18, the protective plate 14 can be easily disassembled for maintenance of the second hydraulic telescopic rod 19. By setting the support leg 2, the base plate 1 can be easily supported. By setting the anti-slip pad, the friction of the support leg 2 can be easily increased. By setting the guide rod 10 and the guide ring 11 for sliding connection, the moving plate 9 can be easily guided and limited. By setting the main protective cover 3 and the auxiliary protective cover 4, the first hydraulic telescopic rod 8 can be easily protected, and the paint can be prevented from sticking to the first hydraulic telescopic rod 8. By setting the first bolt 7, the main protective cover 3 and the auxiliary protective cover 4 can be easily disassembled for maintenance of the first hydraulic telescopic rod 8. By setting the insert 21 for engaging with the slot, the main protective cover 3 and the auxiliary protective cover 4 can be easily connected.

[0032] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0033] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0034] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A machining and positioning fixture for a circular link chain, characterized in that, The system includes a base plate (1) and a first hydraulic telescopic rod (8) mounted on the base plate (1). A movable plate (9) is mounted on the output end of the first hydraulic telescopic rod (8). A connecting frame (15) is mounted on the movable plate (9). A storage cavity is provided on the movable plate (9). A second hydraulic telescopic rod (19) is installed inside the storage cavity. A movable block (20) is mounted on the output end of the second hydraulic telescopic rod (19). A slide (17) is mounted on the movable block (20). A clamping rod (16) is mounted on both the slide (17) and the connecting frame (15).

2. A machining positioning fixture for a round link chain according to claim 1, wherein A protective plate (14) is installed on the carriage (17).

3. A machining positioning fixture for a round link chain according to claim 2, wherein The protective plate (14) is connected to the carriage (17) by a second bolt (18).

4. A process positioning fixture for an endless chain as defined in claim 1, wherein The bottom of the base plate (1) is equipped with multiple support legs (2), and anti-slip pads are installed on the support legs (2).

5. A process positioning fixture for an endless chain as defined in claim 1, wherein A guide rod (10) is installed on the base plate (1), a guide ring (11) is slidably installed on the guide rod (10), a side block (12) is installed on the guide ring (11), a second connecting rod (13) is installed on the side block (12), and one end of the second connecting rod (13) is connected to the moving plate (9).

6. A process positioning fixture for an endless chain as defined in claim 1, wherein A main protective cover (3) is installed on the base plate (1), and an auxiliary protective cover (4) is installed on the main protective cover (3).

7. A process positioning fixture for an endless chain as defined in claim 6, characterized in that Both the main protective cover (3) and the auxiliary protective cover (4) are equipped with a first connecting rod (6), and a mounting plate (5) is installed at one end of the first connecting rod (6). The mounting plate (5) is connected to the base plate (1) by a first bolt (7).

8. A machining positioning fixture for a circular link chain according to claim 7, characterized in that, The auxiliary protective cover (4) is equipped with a plug (21), and the main protective cover (3) is provided with a slot that cooperates with the plug (21).