Stamping device for sliding bearing machining

Abstract

The utility model relates to the technical field of sliding bearing machining, and discloses a stamping device for sliding bearing machining, which comprises a bottom plate and an upper plate, the upper plate is horizontally supported right above the bottom plate through support columns at four corners of the bottom of the upper plate, a hydraulic cylinder is vertically mounted in the middle of the surface of the upper plate, and an extending end of the hydraulic cylinder penetrates to the lower side of the upper plate. A mounting plate is fixed to the tail end of the extending end of the hydraulic cylinder, an upper die is mounted on the surface of the mounting plate, a supporting plate parallel to the bottom plate is arranged above the bottom plate, and the supporting columns slidably penetrate through the four corners of the supporting plate. According to the technical scheme, the supporting plate is pressed downwards, the spring is compressed, then the supporting plate is locked in an attraction mode of the electromagnet, when the upper die is driven to descend to conduct stamping, the electromagnet does not attract and lock the supporting plate any more, the supporting plate is released, and the supporting plate is bounced upwards; the upper die and the lower die are matched with each other at a high speed and acting force to punch and form a plate, smooth punch forming is guaranteed, and burrs on the edge of a punched plate raw material are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sliding bearing processing, in particular to a stamping device for sliding bearing processing. Background Technique

[0002] A sliding bearing, that is, a bearing working under sliding friction, has stable, reliable and noise-free operation. Under the condition of liquid lubrication, the sliding surfaces are separated by lubricating oil and do not come into direct contact, which can greatly reduce friction loss and surface wear. The oil film also has a certain vibration absorption capacity. When processing a sliding bearing, a stamping process is required.

[0003] Since the raw material plate of the sliding bearing is thicker than most plates in traditional stamping, at the moment of the action of stamping contact, a greater acting force and less acting time are required to ensure smooth stamping forming and reduce burrs on the edge of the plate material after stamping. Therefore, we propose a stamping device for sliding bearing processing. Content of the Utility Model

[0004] The purpose of the utility model is to provide a stamping device for sliding bearing processing. By pressing down the support plate and compressing the spring, and then locking it by the adsorption of an electromagnet, when the upper die is driven to descend for stamping, the electromagnet no longer adsorbs and locks, and the support plate is released, so that the support plate is bounced upward, and the upper die and the lower die cooperate to stamp the sheet material at a faster speed and acting force to ensure smooth stamping forming and reduce burrs on the edge of the plate material after stamping, solving the problems raised in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A stamping device for sliding bearing processing, including a bottom plate and an upper plate. The upper plate is horizontally supported directly above the bottom plate by columns at the four corners of its bottom. A hydraulic cylinder is vertically installed at the middle position of the surface of the upper plate. The extending end of the hydraulic cylinder penetrates below the upper plate. The end of the extending end of the hydraulic cylinder is fixed with a mounting plate, and an upper die is installed on the surface of the mounting plate. A support plate parallel to the bottom plate is arranged above the bottom plate. The columns slidably penetrate the four corners of the support plate. A lower die placed directly below the upper die is installed at the middle position of the surface of the support plate. A plurality of springs are vertically and evenly supported between the support plate and the base. Convex blocks are provided on the bottom surface of the support plate and the upper surface of the bottom plate. The convex blocks are evenly provided with a plurality of them, and the convex blocks at the bottom of the support plate are aligned with the convex blocks above the bottom plate one by one. Electromagnets are embedded and fixed inside the convex blocks.

[0006] By adopting the above technical solution, first, the support plate is pressed down to a certain height to compress the spring, and then the height of the support plate is locked by the adsorption of the electromagnet, maintaining the compression of the spring. When the upper die descends to a certain height for stamping, the electromagnet is powered off and no longer adsorbs each other, unlocking the support plate, enabling it to bounce upward and accelerate, and then stamping the sheet material with the upper die and the lower die in cooperation at a relatively high speed and with a large impact force to ensure the stamping quality.

[0007] Optionally, through holes penetrating up and down are provided at the four corners of the support plate, and the pillars penetrate through the support plate slidably through the through holes.

[0008] Optionally, a bushing is embedded and installed in the inner ring of the through hole, and the inner ring of the bushing slidably contacts the outer surface of the pillar.

[0009] By adopting the above technical solution, when the support plate rises and falls in height, the cooperation between the pillar and the bushing can achieve the guiding of the rise and fall of the support plate, and the bushing can play a role in reducing wear.

[0010] Optionally, support grooves are provided on the bottom surface of the support plate above the spring and on the bottom surface of the bottom plate below the spring, and the spring is supported between the support plate and the bottom plate through the support grooves.

[0011] By adopting the above technical solution, the positioning purpose of vertically supporting the spring is achieved by using the support grooves.

[0012] Optionally, a rubber column is vertically fixed in the support groove on the bottom surface of the inner part of the spring. The height of the rubber column is half of the distance between the support plate and the bottom plate. When the support plate descends and touches the surface of the rubber column, the convex block on the bottom surface of the bottom plate is close to the convex block on the bottom surface of the support plate.

[0013] By adopting the above technical solution, when the support plate descends in height, it will be supported, limited, and buffered by the rubber column.

[0014] Optionally, the upper die is detachably installed below the mounting plate through bolts, and the lower die is detachably installed on the surface of the support plate through bolts.

[0015] By adopting the above technical solution, both the upper die and the lower die can be removed and replaced to adapt to the stamping processing of bearing sheet materials of different sizes.

[0016] Compared with the prior art, the beneficial effects of the technical solution of the present application are as follows:

[0017] 1. The technical solution of this application is to set a liftable support plate above the bottom plate through multiple groups of springs. The lower die for stamping is installed and fixed on the surface of the support plate. Before the initial stamping and after each stamping, the support plate is pressed downward to compress the springs, and then locked by the adsorption of an electromagnet. When the upper die is driven down to a certain height for stamping, the electromagnet no longer adsorbs and locks, releasing the support plate. Thus, the support plate can be bounced upward by the action of the springs, stamping the sheet material with the upper die and the lower die in cooperation at a relatively fast speed and force, ensuring smooth stamping forming and reducing burrs on the edges of the sheet material after stamping.

[0018] 2. The technical solution of this application is that a rubber column is vertically fixed in the support groove of the bottom plate inside the inner ring of the spring. When the support plate is pressed downward to lower its height, the rubber column can not only play a limiting role to prevent the spring from being overcompressed, but also avoid direct contact between the convex block at the bottom of the support plate and the convex block on the surface of the bottom plate, and also has a certain buffering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] By reading the following detailed description of the non - restrictive embodiments with reference to the accompanying drawings, other features, objects, and advantages of the present utility model will become more apparent:

[0020] Figure 1 It is a schematic diagram of the overall structure of the stamping device for processing sliding bearings of the present utility model;

[0021] Figure 2 It is a front - view structural schematic diagram of the stamping device for processing sliding bearings of the present utility model.

[0022] In the figure: 1, bottom plate; 2, upper plate; 21, hydraulic cylinder; 211, mounting plate; 212, upper die; 3, support plate; 31, through - hole; 311, bushing; 32, lower die; 4, support column; 5, support groove; 51, spring; 52, rubber column; 6, convex block; 61, electromagnet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Please refer to Figure 1-2 , the present utility model provides a technical solution: a stamping device for processing sliding bearings, including a bottom plate 1 and an upper plate 2. The upper plate 2 is supported above the bottom plate 1 through support columns 4 at the four corners of its bottom. The lengths of the support columns 4 at the four corners are the same, so that the upper plate 2 is placed parallel above the bottom plate 1. In order to support the bottom plate 1 to a certain height, feet can also be provided at the four corners of the bottom of the bottom plate 1.

[0024] A hydraulic cylinder 21 is vertically installed at the middle position on the surface of the upper plate 2. The extending end of the hydraulic cylinder 21 penetrates below the upper plate 2. An installation plate 211 is fixed at the end of the extending end of the hydraulic cylinder 21. And an upper die 212 is installed on the surface of the installation plate 211. The upper die 212 is detachably installed below the installation plate 211 by bolts. The hydraulic cylinder 21 can drive the upper die 212 to move up and down, and the upper die 212 can be replaced with other upper dies 212 of the required size according to needs.

[0025] A support plate 3 is arranged above the bottom plate 1. The support plate 3 is arranged parallel to the surface of the bottom plate 1. A lower die 32 is installed at the middle position on the surface of the support plate 3. The lower die 32 is located directly below the upper die 212. And the lower die 32 is detachably installed on the surface of the support plate 3 by bolts. The lower die 32 can be replaced with other lower dies 32 of the required size according to needs, so as to be used in cooperation with the upper die 212. When the sheet material for processing the bearing is placed in the lower die 32, the hydraulic cylinder 21 is controlled to drive the upper die 212 to lower the height, so that it can cooperate with the lower die 32 to stamp the sheet material into shape.

[0026] Through holes 31 penetrating up and down are formed at the four corners of the support plate 3, so that the support columns 4 can slidably penetrate through the support plate 3 through the through holes 31. The support plate 3 can move up and down and is guided by the through holes 31 sleeved on the outer ring of the support columns 4. A bushing 311 is embedded and installed on the inner ring of the through hole 31. The inner ring of the bushing 311 can slidably contact the surface of the outer ring of the support column 4. When lubricating oil is applied to the bushing 311, it can play a role of more smooth guiding and reduce wear.

[0027] A plurality of springs 51 are vertically and evenly supported between the support plate 3 and the base. Protrusions 6 are arranged on the bottom surface of the support plate 3 and the upper surface of the bottom plate 1. A plurality of protrusions 6 are evenly arranged, and the protrusions 6 at the bottom of the support plate 3 are aligned with the protrusions 6 above the bottom plate 1 one by one. An electromagnet 61 is embedded and fixed inside the protrusion 6. Before the stamping work, the upper die 212 can be first moved downward to press the lower die 32, and then the support plate 3 is pressed downward and the spring 51 is compressed and stored with force. At this time, the protrusions 6 at the bottom of the support plate 3 and the protrusions 6 on the surface of the bottom plate 1 will approach each other. Then, the electromagnets 61 in the upper protrusions 6 and the electromagnets 61 in the lower protrusions 6 have opposite magnetic attractions and can attract each other, so as to maintain the downward pressing state of the support plate 3 and restrain the compressed spring 51. When the hydraulic cylinder 21 drives the upper die 212 to move downward to stamp the sheet material, when the upper die 212 is about to contact the sheet material in the lower die 32 for stamping, all the electromagnets 61 are powered off and lose magnetism and no longer attract each other. The support plate 3 will be bounced upward and accelerated under the upward reset action of the spring 51, so that the upper die 212 and the lower die 32 act at a faster speed and generate a greater stamping force, and finally stamp the sheet material into shape. Since the force and speed during stamping are faster, it can ensure smooth stamping, better quality and reduce burrs on the stamped sheet material.

[0028] On the bottom surface of the support plate 3 above the spring 51 and the surface of the bottom plate 1 below the spring 51, support grooves 5 are provided. The spring 51 is supported and positioned between the support plate 3 and the bottom plate 1 through the support grooves 5 to achieve the purpose of supporting the spring 51. A rubber column 52 is vertically fixed in the support groove 5 on the surface of the bottom plate 1 inside the spring 51. The height of the rubber column 52 is half of the distance between the support plate 3 and the bottom plate 1. Therefore, when the support plate 3 is pressed down and lowered, the rubber column 52 will abut against and support the bottom surface of the support plate 3, playing a role in limiting the excessive compression of the spring 51 and buffering. And when the support plate 3 is lowered and abuts against the surface of the rubber column 52, the convex blocks 6 on the surface of the bottom plate 1 are close to the convex blocks 6 on the bottom of the support plate 3. The rubber column 52 can also prevent the upper and lower convex blocks 6 from contacting and generating acting forces.

[0029] During use, before the first stamping, first control the hydraulic cylinder 21 to drive the upper die 212 to lower its height and act on the lower die 32, thereby pressing down the support plate 3 downward. The support plate 3 is guided by the support column 4 and the bushing 311 and descends in height, while compressing the spring 51 until the rubber column 52 abuts against the lower surface of the support plate 3 to limit the descending height of the support plate 3 and play a buffering role. At this time, the convex blocks 6 at the bottom of the support plate 3 are close to the convex blocks 6 on the surface of the bottom plate 1, making the electromagnets 61 in the lower convex blocks 6 of the support plate 3 and the electromagnets 61 in the upper convex blocks 6 of the bottom plate 1 have opposite magnetic poles, and then being able to adsorb and lock the position of the support plate 3 and maintain the compressed state of all the springs 51. Then, control the hydraulic cylinder 21 to drive the upper die 212 to rise in height, place the sheet material for making the sliding bearing in the lower die 32, and then control the hydraulic cylinder 21 to drive the upper die 212 to lower its height. When the upper die 212 is about to contact the sheet material in the lower die 32 for stamping, cut off the power supply of all the electromagnets 61 to lose magnetism and no longer adsorb each other. The support plate 3 can be bounced upward and accelerated under the upward reset action of the spring 51, and then the upper die 212 and the lower die 32 can act at a faster speed and generate a greater stamping force, finally stamping the sheet material into shape. Subsequently, the hydraulic cylinder 21 continues to drive the upper die 212 to lower its height, presses the support plate 3 downward again, and compresses the spring 51 again until the rubber column 52 abuts against the lower surface of the support plate 3 to limit the descending height of the support plate 3. Again, make the electromagnets 61 in the lower convex blocks 6 of the support plate 3 and the electromagnets 61 in the upper convex blocks 6 of the bottom plate 1 have opposite magnetic poles, and adsorb and lock the position of the support plate 3 again, maintaining the compressed state of all the springs 51. Then, the hydraulic cylinder 21 drives the upper die 212 to rise in height, take away the stamped bearing sheet material, and then place a new sheet material to continue the stamping process.

Claims

1. A stamping device for machining a sliding bearing, comprising a bottom plate (1) and an upper plate (2), characterized in that: The upper plate (2) is horizontally supported above the bottom plate (1) by columns (4) at the four corners of its bottom. A hydraulic cylinder (21) is vertically installed at the middle position of the surface of the upper plate (2). The extending end of the hydraulic cylinder (21) penetrates below the upper plate (2). A mounting plate (211) is fixed at the end of the extending end of the hydraulic cylinder (21), and an upper mold (212) is installed on the surface of the mounting plate (211). Above the bottom plate (1), a support plate (3) parallel to the bottom plate (1) is provided. The columns (4) slidably penetrate through the four corners of the support plate (3). A lower mold (32) placed directly below the upper mold (212) is installed at the middle position of the surface of the support plate (3). A plurality of springs (51) are vertically and evenly supported between the support plate (3) and the base. Protrusions (6) are provided on both the bottom surface of the support plate (3) and the upper surface of the bottom plate (1). A plurality of protrusions (6) are evenly arranged, and the protrusions (6) at the bottom of the support plate (3) are aligned with the protrusions (6) above the bottom plate (1) one by one. Electromagnets (61) are fixedly embedded inside the protrusions (6).

2. The stamping device for processing a sliding bearing according to claim 1, characterized in that: Through holes (31) penetrating up and down are provided at the four corners of the support plate (3). The columns (4) slidably penetrate through the support plate (3) through the through holes (31).

3. The stamping device for machining a sliding bearing according to claim 2, characterized in that: A bushing (311) is embedded and installed inside the inner ring of the through hole (31). The inner ring of the bushing (311) slidably contacts the outer surface of the column (4).

4. A stamping device for machining a sliding bearing according to claim 1, characterized in that: Grooves (5) are provided on both the bottom surface of the support plate (3) above the spring (51) and the surface of the bottom plate (1) below the spring (51). The spring (51) is supported between the support plate (3) and the bottom plate (1) through the grooves (5).

5. The stamping device for machining a sliding bearing according to claim 4, characterized in that: A rubber column (52) is vertically fixed in the groove (5) on the surface of the bottom plate (1) inside the spring (51). The height of the rubber column (52) is half of the distance between the support plate (3) and the bottom plate (1). When the support plate (3) descends and touches the surface of the rubber column (52), the protrusions (6) on the surface of the bottom plate (1) are close to the protrusions (6) at the bottom of the support plate (3).

6. The stamping device for processing sliding bearings according to claim 1, characterized in that: The upper mold (212) is detachably installed below the mounting plate (211) by bolts, and the lower mold (32) is detachably installed on the surface of the support plate (3) by bolts.

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