Anti-unbalance loading device

Abstract

The utility model provides an unbalance loading prevention device, and particularly relates to the field of machine manufacturing. The unbalance loading prevention device is applied to the free forging press and comprises a first flat plate and a second flat plate, and the first flat plate is horizontally placed on a working platform of the forging press; the second flat plate is arranged on the first flat plate in a sliding manner; the two ends, in the sliding direction of the second flat plate, of the first flat plate are provided with check blocks, and buffering pieces are arranged between the check blocks and the second flat plate. The unbalance loading prevention device can effectively disperse the unbalance loading force, the stability and reliability of the forging process are ensured, the quality of forgings can be improved, the structure of a press can be protected, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of mechanical manufacturing, in particular to an anti-eccentric load device. Background Art

[0002] A free forging press is a device used for free forging of metal materials. It is widely used in various processes such as upsetting, punching, reaming, offsetting, rough turning, cutting, bending, and drawing. This type of equipment can plastically deform the metal blank during the forging process to produce forgings with specific shapes and sizes. During the working process of the free forging press, due to uneven force on the forging blank, poor centering, or flow of the forging blank, eccentric loads are often generated, that is, the force of the pressure head is unevenly applied to the forging blank, thereby generating a component force that is not perpendicular to the forging direction. The eccentric load will not only affect the quality of the forging, causing deformation or damage to the workpiece, but also cause the forging press to shake and cause equipment damage. Therefore, in order to ensure the normal operation of the forging press and improve the quality of the forgings, effective prevention and control measures need to be taken. Utility Model Content

[0003] In view of the above shortcomings of the prior art, the utility model provides an anti-eccentric load device to improve the problem that the eccentric load force has adverse effects on forgings and free forging presses during the forging process.

[0004] To achieve the above-mentioned purpose and other related purposes, the utility model provides an anti-eccentric load device, which is applied to a free forging press. The anti-eccentric load device comprises a first plate and a second plate, wherein the first plate is configured to be horizontally placed on a working platform of the free forging press; the second plate is slidably arranged on the first plate; wherein the first plate is provided with stoppers at both ends along the sliding direction of the second plate, and a buffer is arranged between the stoppers and the second plate.

[0005] In an example of the present invention, the anti-eccentric load device further includes a plurality of cylindrical rollers, and the plurality of cylindrical rollers are rotatably disposed between the first plate and the second plate in sequence along the moving direction of the second plate.

[0006] In an example of the present invention, the anti-eccentric load device also includes a retainer for fixing the plurality of cylindrical rollers, the retainer is arranged at the end of the cylindrical roller, and the plurality of cylindrical rollers are rotatably connected to the retainer.

[0007] In an example of the present invention, fixing members are provided at both ends of the cylindrical roller, and through holes matching the fixing members are provided on the retainer, and the fixing members pass through the through holes.

[0008] In an example of the present invention, a flange is provided on the cylindrical roller, and the flange is provided at an end of the fixing member away from the retainer and is located between the retainer and the first plate and the second plate.

[0009] In an example of the present invention, a guide column is provided at a position of the second plate corresponding to the stopper, one end of the guide column is fixedly connected to the second plate, and the other end of the guide column passes through the stopper.

[0010] In an example of the present invention, the block includes a connecting member and a baffle, one end of the connecting member is fixedly connected to the first flat plate, the other end of the connecting member is fixedly connected to the baffle, and the baffle is provided with an opening for placing the guide column.

[0011] In an example of the present invention, ribs are provided on both sides of the connecting member, the bottom of the ribs is fixedly connected to the connecting member, and one side of the ribs is fixedly connected to the baffle.

[0012] In an example of the present invention, the buffer member is a spring, and the guide column passes through the spring and the baffle in sequence.

[0013] In one example of the utility model, the anti-eccentric load device also includes a fixing part, which includes a first pin shaft, a second pin shaft and a hanging chain. The first pin shaft is fixedly set on the first plate, the second pin shaft is fixedly set at a position of the second plate corresponding to the first pin shaft, one end of the hanging chain is rotatably set on the first pin shaft, and the other end of the hanging chain is rotatably set on the second pin shaft.

[0014] The anti-eccentric load device of the utility model is used for a free forging press. The second plate is slidably arranged on the first plate. The forging blank is placed on the first plate for forging. When an eccentric load force occurs, the forging blank drives the second plate to slide along the first plate, which can effectively disperse the eccentric load force and ensure the stability and reliability of the forging process. It can not only improve the quality of forgings, but also protect the press structure and extend the service life of the equipment. Furthermore, the anti-eccentric load device of the present application has a simple structure, is easy to manufacture and operate, and can adapt to various complex working environments, and has strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic structural diagram of an anti-eccentric load device of the utility model in one embodiment;

[0017] Figure 2 It is a front view of an anti-eccentric load device of the utility model in one embodiment;

[0018] Figure 3 It is a schematic structural diagram of the anti-eccentric load device of the utility model in another embodiment;

[0019] Figure 4 Figure 3 Enlarged schematic diagram of the middle C area;

[0020] Figure 5 for Figure 1 A magnified schematic diagram of the middle A area;

[0021] Figure 6 It is a schematic diagram of a first cylindrical roller in an embodiment of the anti-eccentric load device of the utility model;

[0022] Figure 7 A schematic diagram of a second cylindrical roller in an embodiment of the anti-eccentric load device of the utility model;

[0023] Figure 8 for Figure 1 A magnified schematic diagram of area B.

[0024] Component number description

[0025] 100, first plate; 110, stopper; 111, connector; 112, baffle; 113, rib plate; 200, second plate; 210, guide post; 300, cylindrical roller; 310, fixing member; 320, flange; 330, first cylindrical roller; 340, second cylindrical roller; 400, retainer; 500, buffer member; 600, fixing portion; 610, first pin; 620, second pin; 630, hanging chain. DETAILED DESCRIPTION

[0026] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and the features in the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific implementation schemes, rather than to limit the scope of protection of the present invention. The test methods for which specific conditions are not specified in the following examples are usually carried out under conventional conditions or under the conditions recommended by the manufacturers.

[0027] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present utility model without substantially changing the technical content.

[0028] See also Figures 1 to 3 The utility model provides an anti-eccentric load device, which is applied to a free forging press. The anti-eccentric load device comprises a first plate 100 and a second plate 200. When in use, the anti-eccentric load device is horizontally placed on the working platform of the free forging press, and a forging blank is placed on the first plate 100 and forged by the forging press head. When an eccentric load force occurs, the forging blank drives the second plate 200 to slide along the first plate 100, which can effectively disperse the eccentric load force, protect the press structure, and improve the quality of forgings.

[0029] See also Figures 1 to 4In one embodiment, the first plate 100 is configured to be placed horizontally on the working platform of the free forging press, and the second plate 200 is slidably arranged on the first plate 100. Here, there is no restriction on the sliding mode of the second plate 200, and the second plate 200 can be arranged on the first plate 100 in any slidable manner. Exemplarily, the anti-eccentric load device includes a plurality of cylindrical rollers 300, and the plurality of cylindrical rollers 300 are rotatably arranged between the first plate 100 and the second plate 200 in sequence along the moving direction of the second plate 200. In the present application, there is no restriction on the shape and size of the first plate 100 and the second plate 200, for example, they can be rectangular, square, etc., and the size of the first plate 100 and the second plate 200 is adaptively adjusted according to the size of the forging. Exemplarily, the first plate 100 and the second plate 200 are both rectangular, the sizes of the first plate 100 and the second plate 200 are equal, and the second plate 200 moves along its length direction. In the present application, there is no restriction on the material of the first plate 100, the second plate 200 and the cylindrical roller 300, as long as the strength and wear resistance of the first plate 100, the second plate 200 and the cylindrical roller 300 meet the use requirements. Further, in order to improve the durability and stability of the device, the first plate 100, the second plate 200 and the cylindrical roller 300 are all made of carburized steel, and the high surface hardness and wear resistance are combined with the high toughness and high plasticity of the core through carburizing heat treatment. The Rockwell hardness (HRC) of the carburized steel surface reaches 58-65, which can effectively improve the durability of the device.

[0030] See also Figures 1 to 4 In one embodiment, the anti-eccentric load device also includes a retainer 400 for fixing a plurality of cylindrical rollers 300. The retainer 400 is disposed at the end of the cylindrical roller 300, and the plurality of cylindrical rollers 300 are rotatably connected to the retainer 400. The retainer 400 can position the plurality of cylindrical rollers 300 to ensure that the gap between adjacent cylindrical rollers 300 remains unchanged during the sliding process of the second flat plate 200, thereby preventing the cylindrical rollers 300 from colliding during the rotation process. Exemplarily, fixing members 310 are disposed at both ends of the cylindrical roller 300, and a through hole matching the fixing member 310 is disposed on the retainer 400. The fixing member 310 passes through the through hole to realize the rotatable connection between the cylindrical roller 300 and the retainer 400.

[0031] See also Figures 1 to 3In one embodiment, stoppers 110 are provided at both ends of the first plate 100 along the sliding direction of the second plate 200. The stoppers 110 can block the second plate 200 to prevent the second plate 200 from falling off the first plate 100 during the sliding process. Furthermore, a buffer 500 is provided between the stopper 110 and the second plate 200. In a free state, one end of the buffer 500 contacts the stopper 110, and the other end of the buffer 500 contacts the second plate 200. If an eccentric load is generated during the forging process, the second plate 200 moves and presses the buffer 500. The buffer 500 can reduce the movement speed of the second plate 200 to prevent the first plate 100 from being hit. At the same time, it can also absorb the energy generated by the impact or vibration of the second plate 200 on the first plate 100 to reduce noise. After the forging is completed, the second plate 200 is reset under the action of the buffer 500. The specific type of the buffer 500 is not limited here, and the buffer 500 can be any component that can provide a buffering effect and can automatically reset, including but not limited to a spring, a rubber pad, a hydraulic buffer, etc. The number of the block 110 and the buffer 500 is not limited in this application, and can be adaptively adjusted according to actual needs.

[0032] See also Figures 1 to 3 In one embodiment, a guide post 210 is provided at a position corresponding to the second flat plate 200 and the stopper 110, one end of the guide post 210 is fixedly connected to the second flat plate 200, and the other end of the guide post 210 passes through the stopper 110. The guide post 210 can not only position the second flat plate 200 to prevent the second flat plate 200 from shifting in direction when sliding, but also prevent the buffer 500 from losing stability or running off when being squeezed. In the present application, the anti-biased load device includes a plurality of guide posts 210 and a plurality of buffers 500, and the stopper 110, the buffer 500 and the guide post 210 are all distributed on both sides of the moving direction of the second flat plate 200, and the number of the guide posts 210 and the buffer 500 can be equal or unequal. Exemplarily, the number of the stopper 110, the buffer 500 and the guide post 210 are all four, and the buffer 500 and the guide post 210 are arranged in the stopper 110 in a one-to-one correspondence, that is, one guide post 210 is matched with one buffer 500. In other embodiments, the number of the buffer members 500 and the guide pillars 210 may also be six, eight or more.

[0033] See also Figure 5In one embodiment, the stopper 110 includes a connector 111 and a baffle 112, one end of the connector 111 is fixedly connected to the first flat plate 100, and the other end of the connector 111 is fixedly connected to the baffle 112. The baffle 112 is provided with an opening for placing the guide post 210. The shape of the opening is not limited here, as long as the guide post 210 can slide in the opening. Exemplarily, the shape of the opening is U-shaped. In this embodiment, the buffer 500 is a spring, and the spring is placed on the connector 111. The guide post 210 passes through the spring and the baffle 112 in turn and slides along the opening of the baffle 112. Furthermore, in order to strengthen the strength of the stopper 110, ribs 113 are provided on both sides of the connector 111, the bottom of the rib 113 is fixedly connected to the connector 111, and one side of the rib 113 is fixedly connected to the baffle 112.

[0034] See also Figure 4 and Figures 6 to 8 In one embodiment, flanges 320 are provided at both ends of the cylindrical roller 300. The flanges 320 are provided on the side of the fixing members 310 on both sides away from the retainer 400, and are located between the retainer 400 and the first plate 100 and the second plate 200. The spacing between the flanges 320 at both ends of the cylindrical roller 300 matches the width of the first plate 100 and the second plate 200, so as to prevent the cylindrical roller 300 from moving along its axial direction. Further, the cylindrical roller 300 provided with the flange 320 is recorded as the first cylindrical roller 330, and the cylindrical roller 300 without the flange 320 is recorded as the second cylindrical roller 340. In order to prevent the flange 320 from affecting the gap between adjacent cylindrical rollers 300 due to its large size, the first cylindrical roller 330 and the second cylindrical roller 340 are alternately arranged along the moving direction of the second plate 200, and the flanges 320 on the adjacent first cylindrical rollers 330 are used to position the second cylindrical roller 340.

[0035] See also Figure 1 , Figure 2 and Figure 8In one embodiment, the anti-biased load device further includes a fixing part 600 to enhance the stability of the first plate 100 and the second plate 200. Exemplarily, the fixing part 600 includes a first pin 610, a second pin 620 and a hanging chain 630. The first pin 610 is fixedly arranged on the first plate 100, the second pin 620 is fixedly arranged at a position corresponding to the first pin 610 on the second plate 200, one end of the hanging chain 630 is rotatably arranged on the first pin 610, and the other end of the hanging chain 630 is rotatably arranged on the second pin 620. Further, the first pin 610 and the second pin 620 are step pins, the diameter of the end away from the first plate 100 and the second plate 200 is larger than the diameter of the end close to the first plate 100 and the second plate 200, and the hanging chain 630 is provided with a long hole, the size of which is larger than the diameter of the small end of the step pin and smaller than the diameter of the large end, so as to prevent the hanging chain 630 from falling off during use. In a natural state, the chain 630 hangs down in the vertical direction. When the second plate 200 slides along the first plate 100, the two ends of the chain 630 rotate around the first pin 610 and the second pin 620 respectively. When the second plate 200 slides to the compression limit of the buffer 500, the two ends of the chain 630 are tightened by the first pin 610 and the second pin 620 to prevent damage to the buffer 500 and prevent the second plate 200 from falling off the first plate 100 when the stopper 110 is damaged. Further, the chain 630 is arranged between the first plate 100, the second plate 200 and the retainer 400, and the fixing member 310 of the cylindrical roller 300 corresponding to the chain 630 passes through the long hole on the chain 630 and is rotatably connected to the retainer 400, which can prevent the cylindrical roller 300 from falling off due to excessive sliding.

[0036] The anti-eccentric load device of the utility model is used for a free forging press. The second plate is slidably arranged on the first plate. The forging blank is placed on the first plate for forging. When an eccentric load force appears, the forging blank drives the second plate to slide along the first plate, which can effectively disperse the eccentric load force and ensure the stability and reliability of the forging process. It can not only improve the quality of forgings, but also protect the press structure and extend the service life of the equipment. Furthermore, the anti-eccentric load device of the present application has a simple structure, is easy to manufacture and operate, and can adapt to various complex working environments and has strong adaptability. By using the anti-eccentric load device of the present application, the operator does not need to make complex adjustments and alignments to the forging blank when forging forgings, which greatly saves working time and improves work efficiency. Therefore, the utility model effectively overcomes some practical problems in the prior art and thus has high utilization value and use significance.

[0037] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. An anti-eccentric load device, applied to a free forging press, characterized in that: include: A first plate is configured to be placed horizontally on a working platform of a free forging press; a second flat plate, slidably disposed on the first flat plate; Wherein, stoppers are arranged at both ends of the first flat plate along the sliding direction of the second flat plate, and a buffer is arranged between the stoppers and the second flat plate.

2. The anti-eccentric load device according to claim 1, characterized in that: The anti-eccentric load device also includes a plurality of cylindrical rollers, which are rotatably arranged between the first plate and the second plate in sequence along the moving direction of the second plate.

3. The anti-eccentric load device according to claim 2, characterized in that: The anti-eccentric load device also includes a retainer for fixing the plurality of cylindrical rollers. The retainer is arranged at the end of the cylindrical roller, and the plurality of cylindrical rollers are rotatably connected to the retainer.

4. The anti-eccentric load device according to claim 3, characterized in that: Both ends of the cylindrical roller are provided with fixing pieces, the retainer is provided with through holes matching the fixing pieces, and the fixing pieces pass through the through holes.

5. The anti-eccentric load device according to claim 4, characterized in that: The cylindrical roller is provided with a flange, which is arranged at one end of the fixing member away from the retainer and is located between the retainer and the first plate and the second plate.

6. The anti-eccentric load device according to claim 1, characterized in that: A guide column is disposed at a position of the second flat plate corresponding to the stopper, one end of the guide column is fixedly connected to the second flat plate, and the other end of the guide column passes through the stopper.

7. The anti-eccentric load device according to claim 6, characterized in that: The stopper includes a connecting member and a baffle, one end of the connecting member is fixedly connected to the first flat plate, the other end of the connecting member is fixedly connected to the baffle, and an opening for placing the guide column is provided on the baffle.

8. The anti-eccentric load device according to claim 7, characterized in that: Rib plates are arranged on both sides of the connecting member, the bottom of the rib plate is fixedly connected to the connecting member, and one side of the rib plate is fixedly connected to the baffle.

9. The anti-eccentric load device according to claim 7, characterized in that: The buffer is a spring, and the guide column passes through the spring and the baffle in sequence.

10. The anti-eccentric load device according to claim 1, characterized in that: The anti-eccentric load device also includes a fixing part, which includes a first pin shaft, a second pin shaft and a hanging chain. The first pin shaft is fixedly set on the first plate, the second pin shaft is fixedly set on the second plate at a position corresponding to the first pin shaft, one end of the hanging chain is rotatably set on the first pin shaft, and the other end of the hanging chain is rotatably set on the second pin shaft.

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