Heavy duty rail forging manipulator four-arm linkage tongs

By using a motor-driven screw adjustment system and a composite fixing mechanism with elastic pads, the problem of the clamp center of gravity shifting in the four-arm forging manipulator was solved, achieving stable clamping of forgings and extending the equipment's lifespan.

CN224294602UActive Publication Date: 2026-05-29XI AN SINOBERUN HEAVY IND TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XI AN SINOBERUN HEAVY IND TECH CO LTD
Filing Date
2025-06-26
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The existing four-arm forging manipulator clamps are difficult to adjust flexibly according to the specific height and center of gravity of the forging, which leads to the center of gravity shift during clamping, increases the risk of unbalanced equipment load, and may cause the forging to swing or collide.

Method used

The motor-driven lead screw adjustment system achieves precise adjustment of the clamp height through the threaded pair. Combined with elastic pads and a composite fixing mechanism, it ensures uniform distribution of clamping force and eliminates center of gravity shift.

Benefits of technology

It enables stable and reliable clamping of forgings of different sizes and shapes, reduces the risk of unbalanced equipment load, extends equipment service life, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224294602U_ABST
    Figure CN224294602U_ABST
Patent Text Reader

Abstract

The utility model discloses heavy rail forging manipulator four arm linkage clamp, include: support component, support component includes stand, clamp no.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, specifically a four-arm linkage clamp for a heavy-duty rail-mounted forging manipulator. Background Technology

[0002] In modern forging production, the forging manipulator clamp is a core component for efficiently clamping, flipping, and moving forging billets, and its performance directly affects the quality and efficiency of forging production.

[0003] While the currently mainstream two-arm clamping structure is simple in structure and easy to operate, it has limited clamping points for large forgings, making it difficult to provide sufficient support and constraint. Although the four-arm clamping structure improves clamping stability by providing greater clamping force and contact area through the coordinated action of the four clamping arms, the four clamping arms are usually fixedly installed, making it difficult to flexibly adjust their vertical position according to the specific height and center of gravity of the forging. This results in the inability to accurately control the center of gravity of the forging at the center of the clamp when clamping forgings of different sizes. As a result, the center of gravity of the clamped forging often shifts, which not only increases the risk of unbalanced equipment load, but may also cause the forging to swing or collide due to instability. Utility Model Content

[0004] The purpose of this utility model is to provide a heavy-duty rail-guided forging manipulator with a four-arm linkage clamp to solve the problems mentioned in the background section. To solve these technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model is a heavy-duty rail-mounted forging manipulator with four-arm linkage clamp, comprising:

[0006] The support component includes a column, a clamp, and a top block. The clamp is disposed on one side of the outer surface of the column, and the top block is welded to the top of the column.

[0007] The adjustment component includes a clamp, a support plate, a lead screw, a nut, and a turntable. The clamp is located on one side of the outer surface of the top block. The support plate is fixed to the upper and lower parts at both ends of the top block. The turntable is set on the outer surface of the support plate. The lead screw is rotatably connected between the two turntables. One side of the nut is fixed to the outer surface of the clamp, and the middle part is threaded to the outer surface of the lead screw.

[0008] Furthermore, the top block has movable slots at both ends, and one end of the clamp is provided with a movable block, which is movably connected inside the movable slot.

[0009] Furthermore, a support rod is fixed to the inner surface of the moving groove, and a spring is wound around the outer surface of the support rod, with the spring located at the top and bottom of the moving block.

[0010] Furthermore, a telescopic frame is fixed to one end of the outer surface of the clamp one, and a support frame is fixed to one end of the outer surface of the clamp two, with the telescopic frame telescopically connected inside the support frame.

[0011] Furthermore, it also includes protective components, which include elastic pads, fixing grooves, and fixing blocks. The elastic pads are respectively attached to the other end of the outer surfaces of clamp one and clamp two. The fixing grooves are opened inside clamp one and clamp two. The fixing blocks are disposed at one end of the elastic pads and are inserted into the inside of the fixing grooves.

[0012] Furthermore, a clamping plate is fixed to one end of the outer surface of clamp one and clamp two, and the clamping plate is connected to the top and bottom of the fixing block.

[0013] Furthermore, the fixing block and clamping plate have insertion holes inside, and a fixing rod is inserted into the insertion hole. A fastening ring is threaded onto the outer surface of the fixing rod.

[0014] This utility model has the following beneficial effects:

[0015] This invention features an adjustment mechanism with the motor concealed within the top block. When the motor starts, it synchronously drives the turntable and lead screw to rotate stably. The nut and lead screw, connected by a threaded pair, convert the rotational motion of the lead screw into vertical linear motion, achieving precise adjustment of the clamp's height. In actual forging operations, operators can set the target height of the clamp's second arm based on the specific dimensional parameters of the forging, ensuring that the nut drives the clamp's second arm to move smoothly to the designated position. During this process, the clamp's second arm can closely conform to the contour of the forging, evenly distributing the clamping force. Even with irregularly shaped forgings of varying sizes, it provides a stable and reliable clamping effect, keeping the center of gravity of the forging at the center of the clamp's second arm, fundamentally eliminating the problem of center of gravity shift caused by the fixed installation of traditional four-arm clamps. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the first and second clamps of this utility model.

[0018] Figure 2 This is a schematic diagram showing the clamps 1 and 2 after the elastic pad of this utility model has been disassembled and rotated.

[0019] Figure 3 This is a schematic diagram of the clamping clamp of this utility model;

[0020] Figure 4 This is a schematic diagram of the elastic pad of this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 100. Column; 101. Clamping clamp 1; 102. Top block;

[0023] 200. Clamping clamp II; 201. Support plate; 202. Lead screw; 203. Nut; 204. Turntable; 205. Moving slot; 206. Support rod; 207. Spring; 208. Support frame; 209. Telescopic frame; 210. Moving block;

[0024] 300, elastic pad; 301, fixing groove; 302, clamping plate; 303, fixing rod; 304, fastening ring; 305, fixing block; 306, insertion hole. Detailed Implementation

[0025] 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.

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0027] Please see Figure 1-3 As shown, this utility model is a heavy-duty rail-mounted forging manipulator with four-arm linkage clamp, comprising:

[0028] The support component includes a column 100, a clamp 101, and a top block 102. The clamp 101 is disposed on one side of the outer surface of the column 100, and the top block 102 is welded to the top of the column 100.

[0029] The adjustment component includes a clamp 200, a support plate 201, a lead screw 202, a nut 203, and a turntable 204. The clamp 200 is located on one side of the outer surface of the top block 102. The support plate 201 is fixed to the upper and lower parts at both ends of the top block 102. The turntable 204 is disposed on the outer surface of the support plate 201. The lead screw 202 is rotatably connected between the two turntables 204. One side of the nut 203 is fixed to the outer surface of the clamp 200, and the middle part is threaded to the outer surface of the lead screw 202.

[0030] The motor is hidden inside the top block 102. When the motor starts, it synchronously drives the turntable 204 and the lead screw 202 to rotate stably. The nut 203 and the lead screw 202 are connected by a threaded pair to convert the rotational motion of the lead screw 202 into a vertical linear motion, so as to achieve precise adjustment of the height of the clamp 200. In actual forging operations, the operator can set the target height of the clamp 200 through the control system according to the specific size parameters of the forging, so as to ensure that the nut 203 drives the clamp 200 to move smoothly to the designated position.

[0031] The top block 102 has movable slots 205 at both ends, and the clamp 200 has a movable block 210 at one end, which is movably connected to the inside of the movable slot 205.

[0032] When the clamp 200 moves up and down, its moving block 210 simultaneously slides inside the moving groove 205.

[0033] A support rod 206 is fixed to the inner surface of the moving groove 205, and a spring 207 is wound around the outer surface of the support rod 206. The spring 207 is located at the top and bottom of the moving block 210.

[0034] The movable block 210 extends through the outside of the support rod 206. When it moves, it simultaneously compresses the spring 207, thus supporting the clamp 200 during movement.

[0035] One end of the outer surface of clamp 101 is fixed with a telescopic frame 209, and one end of the outer surface of clamp 200 is fixed with a support frame 208. The telescopic frame 209 is telescopically connected to the inside of the support frame 208.

[0036] When the clamp 200 moves up and down, its telescopic frame 209 extends inside the support frame 208 to provide support.

[0037] The working principle is as follows: First, the motor is hidden inside the top block 102. When the motor starts, it synchronously drives the turntable 204 and the lead screw 202 to rotate stably. The nut 203 engages with the lead screw 202 through a threaded pair, converting the rotational motion of the lead screw 202 into vertical linear motion, thus achieving precise adjustment of the height of the clamp 200. In actual forging operations, the operator can set the target height of the clamp 200 through the control system according to the specific dimensional parameters of the forging, ensuring that the nut 203 drives the clamp 200 to move smoothly to the designated position. During this process, the clamp 200 can closely conform to the contour of the forging and evenly distribute the clamping force, providing a stable and reliable clamping effect even for forgings with irregular shapes and large dimensional differences. By controlling the center of gravity of the forging at the center of clamp 200, the problem of center of gravity shift caused by fixed installation of traditional four-arm clamps is fundamentally eliminated. The moving block 210 and the support rod 206 adopt a through-type movable connection design, which not only ensures that the moving block 210 can move freely up and down along the support rod 206, but also effectively restricts its radial sway. When clamp 200 moves in position during height adjustment or clamping of forging, the moving block 210 moves synchronously. During this process, the moving block 210 and the spring 207 form a linkage buffer mechanism. As the moving block 210 moves, the spring 207 is compressed and generates a reverse elastic force. This elastic force can offset the sway and impact caused by inertia, forging impact and other factors during the movement of clamp 200.

[0038] Please see Figure 1-4 As shown, this embodiment, based on the above embodiment, further includes:

[0039] The protective component includes an elastic pad 300, a fixing groove 301, and a fixing block 305. The elastic pad 300 is respectively attached to the other end of the outer surface of clamp 101 and clamp 200. The fixing groove 301 is opened inside clamp 101 and clamp 200. The fixing block 305 is disposed at one end of the elastic pad 300 and inserted into the fixing groove 301.

[0040] The elastic pad 300 surrounds the inner wall of clamp 101 and clamp 200, which can play a protective role during long-term use and prevent clamp 101 and clamp 200 from wearing out.

[0041] Clamping plates 302 are fixed to one end of the outer surface of clamp 101 and clamp 200, and clamping plates 302 are clamped and connected to the top and bottom of fixing block 305;

[0042] During installation, the elastic pad 300 can be fixed by inserting the fixing block 305 into the fixing groove 301.

[0043] The fixing block 305 and the clamping plate 302 have an insertion hole 306 inside, a fixing rod 303 is inserted into the insertion hole 306, and a fastening ring 304 is threaded on the outer surface of the fixing rod 303.

[0044] The fixing rod 303 is inserted into the insertion hole 306 to reinforce the clamping plate 302 and the fixing block 305.

[0045] Working principle: The elastic pad 300 fits tightly against the inner walls of clamp 101 and clamp 200. During long-term clamping of forgings, whether it is the contact and compression of high-temperature metal billets or the violent collisions during flipping and handling, the elastic pad 300 can effectively absorb the impact force through its own elastic deformation, transforming the rigid contact between the forging and clamps 101 and 200 into a buffer. This avoids scratching, wear, and deformation of the inner walls of the clamps, significantly extending the service life of the clamps and reducing equipment maintenance costs. In terms of installation, a double composite fixing mechanism is adopted. First, the elastic pad... The fixing block 305 on the edge of the elastic pad 300 is adapted to the fixing groove 301 on the inner wall of the clamp. By embedding the fixing block 305 into the fixing groove 301, a basic mechanical fitting and fixing is formed. By inserting the fixing rod 303 into the insertion hole 306, the clamping plate 302 and the fixing block 305 are further tightly connected. This not only enhances the connection strength between the fixing block 305 and the fixing groove 301, but also, through the lateral restraint of the clamping plate 302, prevents the elastic pad 300 from bulging or shifting when it is squeezed by the forging, and keeps it in a flat and fitted state, thereby continuously exerting the best protective effect.

[0046] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A heavy-duty rail-guided forging manipulator with four-arm linkage clamp, characterized in that, include: The support component includes a column (100), a clamp (101), and a top block (102). The clamp (101) is disposed on one side of the outer surface of the column (100), and the top block (102) is welded to the top of the column (100). The adjustment component includes a clamp (200), a support plate (201), a lead screw (202), a nut (203), and a turntable (204). The clamp (200) is located on one side of the outer surface of the top block (102). The support plate (201) is fixed at the upper and lower parts of both ends of the top block (102). The turntable (204) is set on the outer surface of the support plate (201). The lead screw (202) is rotatably connected between the two turntables (204). One side of the nut (203) is fixed to the outer surface of the clamp (200), and the middle part is threaded to the outer surface of the lead screw (202).

2. The four-arm linkage clamp of the heavy-duty rail-mounted forging manipulator according to claim 1, characterized in that: The top block (102) has movable slots (205) at both ends, and a movable block (210) is provided at one end of the clamp (200). The movable block (210) is movably connected inside the movable slot (205).

3. The heavy-duty rail-mounted forging manipulator with four-arm linkage clamp according to claim 2, characterized in that: A support rod (206) is fixed to the inner surface of the moving groove (205), and a spring (207) is wound around the outer surface of the support rod (206). The spring (207) is located at the top and bottom of the moving block (210).

4. The heavy-duty rail-mounted forging manipulator with four-arm linkage clamp as described in claim 1, characterized in that: One end of the outer surface of clamp one (101) is fixed with a telescopic frame (209), and one end of the outer surface of clamp two (200) is fixed with a support frame (208). The telescopic frame (209) is telescopically connected to the inside of the support frame (208).

5. The heavy-duty rail-mounted forging manipulator with four-arm linkage clamp according to claim 1, characterized in that: It also includes protective components, which include an elastic pad (300), a fixing groove (301), and a fixing block (305). The elastic pad (300) is respectively attached to the other end of the outer surface of clamp one (101) and clamp two (200). The fixing groove (301) is opened inside clamp one (101) and clamp two (200). The fixing block (305) is set at one end of the elastic pad (300) and inserted into the fixing groove (301).

6. The four-arm linkage clamp of the heavy-duty rail-mounted forging manipulator according to claim 5, characterized in that: One end of the outer surface of clamp one (101) and clamp two (200) is fixed with a clamp plate (302), which is clamped and connected to the top and bottom of the fixing block (305).

7. The four-arm linkage clamp of the heavy-duty rail-mounted forging manipulator according to claim 6, characterized in that: The fixing block (305) and the clamping plate (302) have an insertion hole (306) inside, a fixing rod (303) is inserted into the insertion hole (306), and a fastening ring (304) is threaded onto the outer surface of the fixing rod (303).