Punching device for producing a steel tube for a bearing and method of use

Abstract

The present application relates to the technical field of bearing steel pipe stamping equipment, and discloses a stamping device for bearing steel pipe production and a use method, the top of the base plate is provided with a stamping forming assembly, two driving stamping devices are symmetrically arranged on the two sides of the stamping forming assembly, a mold overturning stamping assembly is arranged on the top of the base plate and located on one side of the stamping forming assembly, a first linkage assembly is arranged on the side end of the mold overturning stamping assembly, a second linkage assembly is arranged on the side end of the first linkage assembly, a mold closing assembly is arranged on the two sides of the stamping forming assembly and connected with the second linkage assembly, two auxiliary forming assemblies are symmetrically arranged on the two ends of the stamping forming assembly, and the two auxiliary forming assemblies are connected with the second linkage assembly, the device realizes automatic adjustment of the position of the steel plate without manual operation during the process of stamping the steel plate into a steel pipe for machining and manufacturing bearings, and the yield of the stamped steel pipe is high.

Description

TECHNICAL FIELD

[0001] The application relates to a bearing steel pipe stamping device and a use method thereof. BACKGROUND

[0002] A bearing is an important part in contemporary mechanical equipment. Its main functions are to support the mechanical rotating body, reduce the friction coefficient in the movement process, and ensure the rotation precision. In the initial stage of bearing production and processing, a whole piece of steel plate is usually stamped into a steel pipe through a special shaped die and equipment, and then the steel pipe is cut into segments for subsequent bearing production and manufacturing. However, the yield of the steel pipe formed in the process of stamping the flat steel plate into a steel pipe is low, and the operation process is troublesome. The position and state of the steel plate need to be adjusted manually during stamping, and the stamping efficiency is low. There is a lack of an equipment that can automatically adjust the position of the steel plate without manual adjustment during the process of stamping the steel plate into a steel pipe for bearing processing and manufacturing, and the yield of the stamped steel pipe is high. SUMMARY

[0003] The application aims to provide a bearing steel pipe production stamping device and a use method thereof to solve the problems in the background technology. To achieve the above-mentioned purpose, the application provides the following technical scheme: a base plate is arranged on a horizontal plane, a stamping forming assembly is arranged on the top of the base plate, two driving stamping devices are symmetrically arranged on the two sides of the stamping forming assembly, the driving stamping device comprises a die overturning stamping assembly, a first linkage assembly, a second linkage assembly and a die closing assembly, the die overturning stamping assembly is arranged on the top of the base plate and located on one side of the stamping forming assembly, the first linkage assembly is arranged on the side end of the die overturning stamping assembly, the second linkage assembly is arranged on the side end of the first linkage assembly, the die closing assembly is arranged on the two sides of the stamping forming assembly and connected with the second linkage assembly, two auxiliary forming assemblies are symmetrically arranged on the two ends of the stamping forming assembly, and the two auxiliary forming assemblies are connected with the second linkage assembly.

[0004] Preferably, the punch forming assembly comprises a mounting table, a first punch block, a second punch block, a third punch block, a fourth punch block and a rotating shaft, the mounting table is arranged on the top of the base plate, the first punch block is arranged on the top of the mounting table, the second punch block is arranged directly above the first punch block, the rotating shaft horizontally penetrates the top of the second punch block and the two ends of the rotating shaft are respectively connected with the top of the two driving punch devices, the third punch block and the fourth punch block are symmetrically arranged on the two sides of the first punch block and the second punch block, and the side ends of the third punch block and the fourth punch block are respectively connected with the two sides of the mold closing assembly, the top of the first punch block is arranged in a quarter of a circular arc shape, the bottom of the second punch block is consistent with the top of the first punch block and fits with each other, the top of the second punch block is arranged in a quarter of a circular arc shape, and the adjacent side of the third punch block and the fourth punch block is arranged in a quarter of a circular arc shape.

[0005] Preferably, the mold overturning punch assembly comprises a first sliding seat, a second sliding seat, an electric push rod, a sliding block, a sliding frame, an overturning block, a trigger rod, a first connecting rod, a second connecting rod, a limiting rod and a first spring, the first sliding seat is arranged on the top of the base plate and located on one side of the mounting table, the second sliding seat is provided with two, the two second sliding seats are symmetrically arranged on the top of the base plate and located on the side of the first sliding seat away from the mounting table, the electric push rod is vertically arranged on the top of the two second sliding seats and the output end of the electric push rod is arranged downward, the two ends of the sliding block penetrate the side ends of the two second sliding seats and are connected with the two second sliding seats in sliding mode, and the top of the sliding block is connected with the output end of the electric push rod, one end of the rotating shaft is rotatably connected with the side end of the sliding block, the overturning block is arranged on one end of the rotating shaft close to the sliding block, the upper and lower ends of the overturning block are symmetrically provided with the trigger rod, the sliding frame is arranged on the top of the first sliding seat and connected with the first sliding seat in horizontal sliding mode, the top of the lower end of the sliding frame is provided with a protruding part, the protruding part is arranged in a regular triangle shape, the top of the sliding frame is arranged in a plane and provided with a notch, the two sides of the top of the first sliding seat and the two sides of the sliding frame are provided with magnetic attraction parts, the first connecting rod is vertically arranged on the bottom of the sliding block, the second connecting rod is horizontally arranged on the side of the sliding block away from the sliding frame, one end of the second connecting rod is connected with one end of the rotating shaft, the other end of the second connecting rod is respectively connected with the two ends of the first spring, and the limiting rod is provided with two, the two limiting rods are arranged at intervals on the side of the sliding block provided with the second connecting rod and respectively contact the two sides of one end of the second connecting rod.

[0006] Preferably, the first linkage assembly comprises a third connecting rod, a first rack gear, a connecting plate, a rotating plate, a moving rod, a first gear and a second spring, the moving rod is horizontally arranged at one side of the lower end of the sliding frame, the third connecting rod is horizontally arranged through the side end of one of the second sliding seats and is slidably connected to the upper and lower ends of the second sliding seat, and one end of the third connecting rod is connected to one end of the sliding block, the first rack gear is vertically arranged at the side end of the third connecting rod, the connecting plate is horizontally arranged at the side end of the mounting table, the lower end of the rotating plate is rotatably connected to the side end of the connecting plate, the rotating plate is vertically arranged, the two ends of the second spring are respectively connected to the side end of the rotating plate and the top of the connecting plate, and the first gear is rotatably arranged at one side of the top of the rotating plate and is pre-engaged with the side end of the first rack gear.

[0007] Preferably, the second linkage assembly comprises a driving lead screw, a first pulley, a first transmission belt, a second pulley, a second transmission belt, a second gear and a third gear, the driving lead screw is rotatably connected to the two ends of the lower part of the mounting table, the middle part and the two ends of the mounting table are provided with openings arranged through, the two ends of the driving lead screw are located in the openings of the two ends of the mounting table, the driving lead screw is provided with threads with opposite rotation directions from the middle part to the two ends, the second gear is arranged at the rotating connection between the connecting plate and the rotating plate, the first pulley is provided with two, one of the first pulleys is arranged at the rotating connection between the first gear and the upper end of the rotating plate, and the other first pulley is arranged at the rotating connection between the second gear and the lower end of the rotating plate, the first transmission belt is sleeved on the two first pulleys, the third gear is rotatably arranged at the side end of the connecting plate and is engaged with the second gear, the second pulley is provided with two, one of the second pulleys is arranged at the rotating connection between the third gear and the connecting plate, and the other second pulley is arranged on one end of the driving lead screw, and the second transmission belt is sleeved on the two second pulleys.

[0008] Preferably, the mold closing assembly comprises a fourth gear, a second rack gear, a third rack gear and a third spring, the fourth gear is arranged at the middle part of the driving lead screw, the second rack gear and the third rack gear are horizontally arranged at the upper and lower ends of the fourth gear respectively, the bottom of the second rack gear and the top of the third rack gear are engaged with the fourth gear, the second rack gear is horizontally and slidably connected to the top of the middle opening of the mounting table, the bottom of the third rack gear is horizontally and slidably connected to the bottom of the middle opening of the mounting table, the ends of the second rack gear and the third rack gear away from each other are respectively connected to the bottoms of the third stamping block and the fourth stamping block, and the third spring is horizontally arranged between the side ends of the second rack gear and the third rack gear and the two sides of the mounting table.

[0009] Preferably, the auxiliary forming assembly comprises a moving block and an auxiliary cylinder, the moving block is slidably connected with the horizontal direction of the top of the mounting table vertically and is located on one side of the first punching block, the bottom of the moving block is threadedly connected with one end of the driving lead screw, the auxiliary cylinder is horizontally arranged above the mounting table and one end of the auxiliary cylinder is connected with the top of the moving block, the auxiliary cylinder corresponds to and fits the shape of the regular circle formed by the first punching block, the second punching block, the third punching block and the fourth punching block.

[0010] Preferably, the use method of the bearing steel pipe production punching device comprises the following steps:

[0011] S1: When the device is used, first, the steel plate is horizontally placed on the top of the lower end of the punching forming assembly, the bottom of the upper end of the punching forming assembly is arranged in a quarter of a circular arc shape and fits each other with the top of the lower end of the punching forming assembly, the top and the bottom of the upper end of the punching forming assembly are consistent in curvature, both ends of the punching forming assembly are arranged in a quarter of a circular arc shape and are symmetrically arranged, first, the upper end of the punching forming assembly is lowered by the mold overturning punching assembly to perform the first punching on the steel plate to punch the steel plate from a plane state to an arc state;

[0012] S2: Then, the upper end of the punching forming assembly is raised by the mold overturning punching assembly, is overturned by 180 degrees to the top end to the bottom end, and then is lowered again, while the two ends of the punching forming assembly are synchronously moved to the opposite direction by the cooperation of the first linkage assembly, the second linkage assembly and the mold closing assembly, so that the upper and lower ends and the left and right ends of the punching forming assembly form a complete circle, and the steel plate is punched into the shape of a steel pipe under the cooperation of the two auxiliary forming assemblies.

[0013] Compared with the prior art, the beneficial effects of the present application are:

[0014] In the application, when the steel plate needs to be punched, first, the steel plate is placed horizontally on the top of the first punching block with the bottom surface of the steel plate in contact with the top of the first punching block, then the electric push rod is controlled to work to drive the sliding block to descend along the two second sliding seats until the second punching block punches the steel plate for the first time to make it bend into the shape of the arc surface of the first punching block. At this time, the trigger rod at the lower end of one side of the turnover block is lowered synchronously to extrude the protruding part at the lower end of the sliding frame, so that the sliding frame slides towards the first toothed groove rod. Then the electric push rod controls the sliding block and the turnover block to rise and reset. At this time, the trigger rod at the upper end of the turnover block is in contact with one end of the top of the sliding frame to make the turnover block turn over 180 degrees, thereby driving the second punching block to turn over 180 degrees synchronously, so that the top of the second punching block turns to the bottom. Then the electric push rod controls the turnover block to descend again. At this time, the movement of the sliding frame drives the moving rod to move synchronously to extrude and deflect the rotating plate, so that the first gear meshes with the first toothed groove rod. With the descent of the sliding block and the first toothed groove rod, the first gear rotates clockwise. Under the transmission of the first belt pulley and the first transmission belt, the second gear rotates clockwise, thereby driving the third gear to rotate counterclockwise. Under the transmission of the second belt pulley and the second transmission belt, the drive screw rod rotates counterclockwise synchronously, thereby driving the fourth gear to rotate counterclockwise, so that the second toothed groove rod and the third toothed groove rod slide towards the opposite side synchronously. The third spring contracts, and the third punching block and the fourth punching block slide towards the opposite side synchronously. At this time, the inner sides of the first punching block, the second punching block, the third punching block and the fourth punching block gradually form a perfect circle, so that the steel plate inside them is punched into the shape of a steel pipe. When the punching is completed, the turnover block descends to the bottom to reset the sliding frame. The first gear is disengaged from the first toothed groove rod and is reset under the action of the second spring, thereby driving the third punching block and the fourth punching block to reset under the action of the third spring, so as to take out the punched steel pipe. Through the above operation, the process of punching the steel plate into a steel pipe for manufacturing bearings is fully automated without manual adjustment of the position of the steel plate, and the yield rate of the punched steel pipe is high.

[0015] In the application, when the first punching block, the second punching block, the third punching block and the fourth punching block gradually form a perfect circle to punch the steel plate into a steel pipe, in order to improve the yield rate of the punched steel pipe, when the third punching block and the fourth punching block move towards the opposite side synchronously, the two auxiliary cylinders move towards the opposite side synchronously with the rotation of the drive screw rod, so that they are located inside the perfect circle formed by the first punching block, the second punching block, the third punching block and the fourth punching block. The steel plate is punched against the outer side of the auxiliary cylinder, so that the circular shape after punching is perfect, thereby improving the yield rate of the punched steel pipe. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the application.

[0017] Figure 2 Front view of the first state of the punch forming assembly in the present invention;

[0018] Figure 3 Front view of the second state of the punch forming assembly in the present invention;

[0019] Figure 4 Front view of the third state of the punch forming assembly in the present invention;

[0020] Figure 5 Partial structural diagram of the present invention Figure 1 ;

[0021] Figure 6 Front view of the mold flip punch assembly in the present invention Figure 1 ;

[0022] Figure 7 Front view of the mold flip punch assembly in the present invention;

[0023] Figure 8 Front view of the mold flip punch assembly in the present invention Figure 2 ;

[0024] Figure 9 Partial structural diagram of the present invention Figure 2 ;

[0025] Figure 10 Partial structural diagram of the present invention Figure 3 ;

[0026] Figure 11 Partial structural diagram of the present invention Figure 4 .

[0027] In the figure: 1, base plate; 2, punch forming assembly; 21, mounting table; 22, first punch block; 23, second punch block; 24, third punch block; 25, fourth punch block; 26, rotating shaft; 3, driving punch device; 31, mold overturning punch assembly; 311, first sliding seat; 312, second sliding seat; 313, electric push rod; 314, sliding block; 315, sliding frame; 316, overturning block; 317, trigger lever; 318, first connecting rod; 319, second connecting rod; 320, limiting rod; 321, first spring; 33, first linkage assembly; 331, third connecting rod; 332, first toothed rod; 333, connecting plate; 334, rotating plate; 335, moving rod; 336, first gear; 337, second spring; 34, second linkage assembly; 341, driving screw; 342, first belt pulley; 343, first transmission belt; 344, second belt pulley; 345, second transmission belt; 346, second gear; 347, third gear; 35, mold closing assembly; 351, fourth gear; 352, second toothed rod; 353, third toothed rod; 354, third spring; 4, auxiliary forming assembly; 41, moving block; 42, auxiliary cylinder. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0029] Please refer to Figures 1 to 11 The present application provides a technical solution: including a base plate 1, the base plate 1 is arranged on a horizontal plane, the top of the base plate 1 is provided with a punch forming assembly 2, the two sides of the punch forming assembly 2 are symmetrically provided with two driving punch devices 3, the driving punch device 3 includes a mold overturning punch assembly 31, a first linkage assembly 33, a second linkage assembly 34 and a mold closing assembly 35, the mold overturning punch assembly 31 is arranged on the top of the base plate 1 and located at one side of the punch forming assembly 2, the first linkage assembly 33 is arranged at the side end of the mold overturning punch assembly 31, the second linkage assembly 34 is arranged at the side end of the first linkage assembly 33, the mold closing assembly 35 is arranged at the two sides of the punch forming assembly 2 and connected with the second linkage assembly 34, the two ends of the punch forming assembly 2 are symmetrically provided with two auxiliary forming assemblies 4, and the two auxiliary forming assemblies 4 are connected with the second linkage assembly 34.

[0030] In the embodiment, as Figures 1 to 9As shown, the punch forming assembly 2 comprises a mounting table 21, a first punch block 22, a second punch block 23, a third punch block 24, a fourth punch block 25 and a rotating shaft 26, the mounting table 21 is arranged on the top of the base plate 1, the first punch block 22 is arranged on the top of the mounting table 21, the second punch block 23 is arranged directly above the first punch block 22, the rotating shaft 26 horizontally passes through the top of the second punch block 23 and the two ends of the rotating shaft 26 are respectively connected with the top of the two driving punch devices 3, the third punch block 24 and the fourth punch block 25 are symmetrically arranged on the two sides of the first punch block 22 and the second punch block 23, and the side ends of the third punch block 24 and the fourth punch block 25 are respectively connected with the two sides of the mold closing assembly 35, the top of the first punch block 22 is arranged in a quarter of a circular arc shape, the bottom of the second punch block 23 is consistent with the top of the first punch block 22 and fits with each other, the top of the second punch block 23 is arranged in a quarter of a circular arc shape, and the adjacent side of the third punch block 24 and the fourth punch block 25 is arranged in a quarter of a circular arc shape;

[0031] The mold overturning stamping assembly 31 comprises a first sliding seat 311, a second sliding seat 312, an electric push rod 313, a sliding block 314, a sliding frame 315, an overturning block 316, a trigger rod 317, a first connecting rod 318, a second connecting rod 319, a limiting rod 320 and a first spring 321, the first sliding seat 311 is arranged on the top of the base plate 1 and located on one side of the mounting table 21, the second sliding seat 312 is provided with two, the two second sliding seats 312 are symmetrically arranged on the top of the base plate 1 and located on the side, away from the mounting table 21, of the first sliding seat 311, the electric push rod 313 is vertically arranged on the top of the two second sliding seats 312 and the output end of the electric push rod 313 is downwardly arranged, the two ends of the sliding block 314 pass through the side ends of the two second sliding seats 312 and are connected with the same in an up-down sliding mode, and the top of the sliding block 314 is connected with the output end of the electric push rod 313, one end of the rotating shaft 26 is rotationally connected with the side end of the sliding block 314, the overturning block 316 is arranged on one end of the rotating shaft 26, close to the sliding block 314, the two ends of the overturning block 316 are symmetrically provided with the trigger rod 317, the sliding frame 315 is arranged on the top of the first sliding seat 311 and connected with the same in a horizontal sliding mode, the top of the lower end of the sliding frame 315 is provided with a protruding part, the protruding part is arranged in a regular triangle, the top of the sliding frame 315 is arranged in a plane and provided with a notch, the two sides of the top of the first sliding seat 311 and the two sides of the sliding frame 315 are provided with magnetic attraction parts, the first connecting rod 318 is vertically arranged on the bottom of the sliding block 314, the second connecting rod 319 is horizontally arranged on the side of the sliding block 314, away from the sliding frame 315, one end of the second connecting rod 319 is connected with one end of the rotating shaft 26, the other end of the second connecting rod 319 and the bottom of the first connecting rod 318 are respectively connected with the two ends of the first spring 321, the limiting rod 320 is provided with two, the two limiting rods 320 are arranged at intervals on the side of the sliding block 314, provided with the second connecting rod 319, and the two limiting rods 320 respectively contact the two sides of one end of the second connecting rod 319;

[0032] The first linkage assembly 33 comprises a third connecting rod 331, a first toothed groove rod 332, a connecting plate 333, a rotating plate 334, a moving rod 335, a first gear 336 and a second spring 337. The moving rod 335 is horizontally arranged at one side of the lower end of the sliding frame 315. The third connecting rod 331 horizontally penetrates the side end of one of the second sliding seats 312 and is connected with the second sliding seat 312 in sliding mode. One end of the third connecting rod 331 is connected with one end of the sliding block 314. The first toothed groove rod 332 is vertically arranged at the side end of the third connecting rod 331. The connecting plate 333 is horizontally arranged at the side end of the mounting table 21. The lower end of the rotating plate 334 is rotationally connected with the side end of the connecting plate 333. The rotating plate 334 is vertically arranged. The two ends of the second spring 337 are respectively connected with the side end of the rotating plate 334 and the top of the connecting plate 333. The first gear 336 is rotationally arranged at one side of the top of the rotating plate 334. The first gear 336 is pre-engaged with the side end of the first toothed groove rod 332.

[0033] The second linkage assembly 34 comprises a driving lead screw 341, a first belt pulley 342, a first transmission belt 343, a second belt pulley 344, a second transmission belt 345, a second gear 346 and a third gear 347. The driving lead screw 341 is rotationally connected with the mounting table 21 through the two ends of the lower part of the mounting table 21. The middle part and the two ends of the mounting table 21 are respectively provided with an opening arranged in a penetrating mode. The two ends of the driving lead screw 341 are respectively located in the openings of the two ends of the mounting table 21. The driving lead screw 341 is provided with threads in opposite rotation directions from the middle part to the two ends. The second gear 346 is arranged at the rotationally connected position of the connecting plate 333 and the rotating plate 334. The first belt pulley 342 is provided with two first belt pulleys 342. One of the first belt pulleys 342 is arranged at the rotationally connected position of the first gear 336 and the upper end of the rotating plate 334. The other first belt pulley 342 is arranged at the rotationally connected position of the second gear 346 and the lower end of the rotating plate 334. The first transmission belt 343 is sleeved on the two first belt pulleys 342. The third gear 347 is rotationally arranged at the side end of the connecting plate 333 and is engaged with the second gear 346. The second belt pulley 344 is provided with two second belt pulleys 344. One of the second belt pulleys 344 is arranged at the rotationally connected position of the third gear 347 and the connecting plate 333. The other second belt pulley 344 is arranged on one end of the driving lead screw 341. The second transmission belt 345 is sleeved on the two second belt pulleys 344.

[0034] The mold closing assembly 35 comprises a fourth gear 351, a second rack 352, a third rack 353 and a third spring 354, the fourth gear 351 is arranged in the middle of the driving lead screw 341, the second rack 352 and the third rack 353 are horizontally arranged at the upper and lower ends of the fourth gear 351 respectively, and the bottom of the second rack 352 and the top of the third rack 353 are engaged with the fourth gear 351, the second rack 352 is horizontally and slidingly connected with the top of the middle opening of the mounting table 21, the bottom of the third rack 353 is horizontally and slidingly connected with the bottom of the middle opening of the mounting table 21, the ends of the second rack 352 and the third rack 353 away from each other are connected with the bottoms of the third stamping block 24 and the fourth stamping block 25 respectively, and the third spring 354 is horizontally arranged between the sides of the mounting table 21 and the side ends of the second rack 352 and the third rack 353;

[0035] When the steel plate needs to be punched, first, the steel plate is horizontally placed on the top of the first punching block 22 and the bottom surface of the steel plate is in contact with the top of the first punching block 22, then the electric push rod 313 is controlled to work to drive the sliding block 314 to descend along the two second sliding seats 312 until the second punching block 23 punches the steel plate for the first time to make it bent into the shape of the arc surface of the first punching block 22, at this time, the trigger rod 317 at the lower end of one side of the turnover block 316 is lowered synchronously to extrude the protruding part at the lower end of the sliding frame 315, so that the sliding frame 315 slides to the direction close to the first tooth groove rod 332, then the electric push rod 313 is controlled to make the sliding block 314 and the turnover block 316 rise and reset, at this time, the trigger rod 317 at the upper end of the turnover block 316 is in contact with one end of the top of the sliding frame 315 to make the turnover block 316 turn over 180 degrees, thereby driving the second punching block 23 to synchronously turn over 180 degrees to make its top turn over to the bottom, then the electric push rod 313 is controlled to make the turnover block 316 descend again, at this time, the movement of the sliding frame 315 drives the movement rod 335 to synchronously move to extrude and deflect the rotating plate 334, so that the first gear wheel 336 rotates clockwise, under the transmission of the first belt pulley 342 and the first transmission belt 343, the second gear wheel 346 is driven to rotate clockwise, thereby driving the third gear wheel 347 to rotate counterclockwise, under the transmission of the second belt pulley 344 and the second transmission belt 345, the drive lead screw 341 is synchronously driven to rotate counterclockwise, thereby driving the fourth gear wheel 351 to rotate counterclockwise, so that the second tooth groove rod 352 and the third tooth groove rod 353 synchronously slide to the direction close to the opposite side, the third spring 354 is contracted, the third punching block 24 and the fourth punching block 25 synchronously slide to the direction close to the opposite side, at this time, the inner sides of the first punching block 22, the second punching block 23, the third punching block 24 and the fourth punching block 25 gradually form a perfect circle, thereby punching the steel plate on the inner side into the shape of a steel pipe, at the same time of completing the punching, the turnover block 316 descends to the bottom to reset the sliding frame 315, the first gear wheel 336 is separated from the first tooth groove rod 332 and is reset under the action of the second spring 337, thereby driving the third punching block 24 and the fourth punching block 25 to reset under the action of the third spring 354, so as to take down the completed steel pipe, through the above operation, the process of punching the steel plate into the steel pipe for manufacturing the bearing is realized to be fully automatic without manually adjusting the position of the steel plate, and the yield rate of the punched steel pipe is high.

[0036] In the embodiment, as Figures 10 to 11As shown, the auxiliary forming assembly 4 includes a moving block 41 and an auxiliary cylinder 42, the moving block 41 is vertically slidably connected through the top of the mounting table 21 and located on one side of the first punching block 22, the bottom of the moving block 41 is threadedly connected with one end of the driving lead screw 341, the auxiliary cylinder 42 is horizontally arranged above the mounting table 21 and one end of the auxiliary cylinder 42 is connected with the top of the moving block 41, the auxiliary cylinder 42 corresponds to and fits the shape of the regular circle formed by the first punching block 22, the second punching block 23, the third punching block 24 and the fourth punching block 25;

[0037] When the first punching block 22, the second punching block 23, the third punching block 24 and the fourth punching block 25 gradually form a regular circle to punch the steel pipe, in order to improve the yield rate of the punched steel pipe, when the third punching block 24 and the fourth punching block 25 move synchronously to the opposite side, with the rotation of the driving lead screw 341, the two auxiliary cylinders 42 move synchronously to the opposite side, so that they are located inside the regular circle formed by the first punching block 22, the second punching block 23, the third punching block 24 and the fourth punching block 25, so that the steel plate is punched against the outside of the auxiliary cylinder 42, and the circular shape after punching is perfect, thereby realizing the effect of improving the yield rate of the punched steel pipe.

[0038] The use method and advantages of the application are as follows:

[0039] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 ,

[0040] S1: When the device is used, first, the steel plate is horizontally placed on the top of the lower end of the punching forming assembly 2, the bottom of the upper end of the punching forming assembly 2 is arranged in a quarter of a circular arc shape and fits each other, and the top and bottom of the upper end of the punching forming assembly 2 are consistent in curvature, both ends of the punching forming assembly 2 are arranged in a quarter of a circular arc shape and symmetrically arranged, first, the first punching forming assembly 2 is controlled to be lowered by the mold overturning punching assembly 31 to punch the steel plate for the first time to punch it from a flat state to an arc state;

[0041] S2: Then, the upper end of the stamping forming assembly 2 is controlled to rise by the mold overturning stamping assembly 31, and is overturned by 180 degrees to its top end overturned to the bottom end while rising to the top end, and then is controlled to descend again, and the two ends of the stamping forming assembly 2 are controlled to move synchronously to the opposite direction by the cooperation of the first linkage assembly 33, the second linkage assembly 34 and the mold closing assembly 35 while descending, so that the upper and lower ends and the left and right ends of the stamping forming assembly 2 form a complete circle, and the steel plate is stamped into the shape of a steel pipe by the cooperation of the two auxiliary forming assemblies 4.

[0042] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A stamping device for producing steel pipes for bearings, characterized in that, The utility model provides a kind of stamping forming device, including base plate (1), the top of the base plate (1) is provided with punch forming assembly (2), two driving stamping devices (3) are symmetrically provided in the two sides of punch forming assembly (2), the driving stamping device (3) includes mould overturning stamping assembly (31), first linkage assembly (33), second linkage assembly (34) and die clamping assembly (35), the mould overturning stamping assembly (31) is arranged in the top of base plate (1) and is located in the side of punch forming assembly (2), the first linkage assembly (33) is arranged in the side end of mould overturning stamping assembly (31), the second linkage assembly (34) is arranged in the side end of first linkage assembly (33), the die clamping assembly (35) is arranged in the two sides of punch forming assembly (2) and is connected with second linkage assembly (34), the two ends of punch forming assembly (2) are symmetrically provided with two auxiliary forming assemblies (4), and two auxiliary forming assemblies (4) are connected with second linkage assembly (34); The punch forming assembly (2) includes a mounting table (21), a first stamping block (22), a second stamping block (23), a third stamping block (24), a fourth stamping block (25), and a rotating shaft (26). The mounting table (21) is arranged on the top of the base plate (1). The first stamping block (22) is arranged on the top of the mounting table (21). The second stamping block (23) is arranged directly above the first stamping block (22). The rotating shaft (26) horizontally passes through the top of the second stamping block (23) and is connected to the top of the two driving stamping devices (3) at both ends. The third stamping block (24) and the fourth stamping block (25) are symmetrically arranged on both sides of the first stamping block (22) and the second stamping block (23). The side ends of the third stamping block (24) and the fourth stamping block (25) are respectively connected to both sides of the die clamping assembly (35). The top of the first stamping block (22) is arranged in a quarter circular arc shape. The bottom of the second stamping block (23) is consistent in shape with the top of the first stamping block (22) and fits with each other. The top of the second stamping block (23) is arranged in a quarter circular arc shape. The side adjacent to the third stamping block (24) and the fourth stamping block (25) is arranged in a quarter circular arc shape. The auxiliary forming assembly (4) includes a moving block (41) and an auxiliary cylinder (42). The moving block (41) vertically passes through the top of the mounting table (21) and is horizontally slidingly connected thereto. The moving block (41) is located on one side of the first stamping block (22). The bottom of the moving block (41) is threadedly connected to one end of a driving lead screw (341). The auxiliary cylinder (42) is horizontally arranged above the mounting table (21). One end of the auxiliary cylinder (42) is connected to the top of the moving block (41). The auxiliary cylinder (42) corresponds to the position of the first stamping block (22), the second stamping block (23), the third stamping block (24), and the fourth stamping block (25) and fits in shape. The mold flip stamping assembly (31) controls the second stamping block (23) to rise to the top and flip 180°, synchronously drives the second linkage assembly (34) to control the mold closing assembly (35) to make the four stamping blocks form a complete circle, so that the steel plate is pressed against the outside of the auxiliary cylinder (42).

2. The punch device for producing a steel pipe for a bearing according to claim 1, characterized in that: The mold flip stamping assembly (31) comprises a first sliding seat (311), a second sliding seat (312), an electric push rod (313), a sliding block (314), a sliding frame (315), a flip block (316), a trigger lever (317), a first connecting rod (318), a second connecting rod (319), a limiting rod (320) and a first spring (321), the first sliding seat (311) is arranged on the top of the base plate (1) and located on one side of the mounting table (21), the second sliding seat (312) is provided with two, the two second sliding seats (312) are symmetrically arranged on the top of the base plate (1) and located on the side of the first sliding seat (311) away from the mounting table (21), the electric push rod (313) is vertically arranged on the top of the two second sliding seats (312) and the output end of the electric push rod (313) is arranged downward, the two ends of the sliding block (314) pass through the side ends of the two second sliding seats (312) and are connected with them in sliding mode, and the top of the sliding block (314) is connected with the output end of the electric push rod (313), one end of the rotating shaft (26) passes through the side end of the sliding block (314) and is rotationally connected with it, the flip block (316) is arranged on one end of the rotating shaft (26) close to the sliding block (314), the upper and lower ends of the flip block (316) are symmetrically provided with the trigger lever (317), the sliding frame (315) is arranged on the top of the first sliding seat (311) and connected with it in horizontal sliding mode, the top of the lower end of the sliding frame (315) is provided with a protruding part, the protruding part is arranged in a regular triangle shape, the top of the sliding frame (315) is arranged in a plane and provided with a notch, the two sides of the top of the first sliding seat (311) and the two sides of the sliding frame (315) are provided with magnetic attraction parts, the first connecting rod (318) is vertically arranged on the bottom of the sliding block (314), the second connecting rod (319) is horizontally arranged on the side of the sliding block (314) away from the sliding frame (315), one end of the second connecting rod (319) is connected with one end of the rotating shaft (26), the other end of the second connecting rod (319) is connected with the bottom of the first connecting rod (318) and the two ends of the first spring (321) respectively, the limiting rod (320) is provided with two, the two limiting rods (320) are arranged at intervals on the side of the sliding block (314) provided with the second connecting rod (319) and contact with the two sides of one end of the second connecting rod (319) respectively.

3. The punch device for producing a steel pipe for a bearing according to claim 2, characterized in that: The first linkage assembly (33) comprises a third connecting rod (331), a first toothed groove rod (332), a connecting plate (333), a rotating plate (334), a moving rod (335), a first gear (336) and a second spring (337), the moving rod (335) is horizontally arranged at one side of the lower end of the sliding frame (315), the third connecting rod (331) horizontally penetrates through the side end of one of the second sliding seats (312) and is connected with the same in an up-down sliding mode, and one end of the third connecting rod (331) is connected with one end of the sliding block (314), the first toothed groove rod (332) is vertically arranged at the side end of the third connecting rod (331), the connecting plate (333) is horizontally arranged at the side end of the mounting table (21), the lower end of the rotating plate (334) is rotatably connected with the side end of the connecting plate (333), the rotating plate (334) is vertically arranged, the two ends of the second spring (337) are respectively connected with the side end of the rotating plate (334) and the top of the connecting plate (333), and the first gear (336) is rotatably arranged at one side of the top of the rotating plate (334) and is pre-engaged with the side end of the first toothed groove rod (332).

4. The punch device for producing a steel pipe for a bearing according to claim 3, characterized in that: The second linkage assembly (34) comprises a driving lead screw (341), a first belt pulley (342), a first transmission belt (343), a second belt pulley (344), a second transmission belt (345), a second gear (346) and a third gear (347), the driving lead screw (341) is rotatably connected with the mounting table (21) through the two ends of the lower part of the same, the middle part and the two ends of the mounting table (21) are all provided with openings arranged in a penetrating mode, the two ends of the driving lead screw (341) are located in the openings of the two ends of the mounting table (21), the driving lead screw (341) is provided with threads in opposite rotation directions from the middle part to the two ends, the second gear (346) is arranged at the rotatable connection position of the connecting plate (333) and the rotating plate (334), the first belt pulley (342) is provided with two, one of the first belt pulleys (342) is arranged at the rotatable connection position of the first gear (336) and the upper end of the rotating plate (334), the other first belt pulley (342) is arranged at the rotatable connection position of the second gear (346) and the lower end of the rotating plate (334), the first transmission belt (343) is sleeved on the two first belt pulleys (342), the third gear (347) is rotatably arranged at the side end of the connecting plate (333) and is engaged with the second gear (346), the second belt pulley (344) is provided with two, one of the second belt pulleys (344) is arranged at the rotatable connection position of the third gear (347) and the connecting plate (333), the other second belt pulley (344) is arranged on one end of the driving lead screw (341), and the second transmission belt (345) is sleeved on the two second belt pulleys (344).

5. The punch device for producing a steel pipe for a bearing according to claim 4, characterized in that: The mold closing assembly (35) comprises a fourth gear (351), a second toothed groove rod (352), a third toothed groove rod (353) and a third spring (354), the fourth gear (351) is arranged in the middle of the driving lead screw (341), the second toothed groove rod (352) and the third toothed groove rod (353) are arranged horizontally at the upper and lower ends of the fourth gear (351) respectively, and the bottom of the second toothed groove rod (352) and the top of the third toothed groove rod (353) are engaged with the fourth gear (351), the second toothed groove rod (352) is horizontally and slidingly connected with the top of the middle opening of the mounting table (21), the bottom of the third toothed groove rod (353) is horizontally and slidingly connected with the bottom of the middle opening of the mounting table (21), the ends of the second toothed groove rod (352) and the third toothed groove rod (353) away from each other are connected with the bottoms of the third stamping block (24) and the fourth stamping block (25) respectively, and the third spring (354) is arranged horizontally between the sides of the mounting table (21) and the side ends of the second toothed groove rod (352) and the third toothed groove rod (353).

6. The method of using a stamping device for producing a steel pipe for a bearing steel pipe according to claim 1, comprising the following steps: S1: when the device is used, first place the steel plate horizontally on the top of the lower end of the stamping forming assembly (2), the bottom of the upper end of the stamping forming assembly (2) is arranged in a quarter of a circular arc shape and fits with the top of the lower end of the stamping forming assembly (2), and the top and the bottom of the upper end of the stamping forming assembly (2) have the same curvature, the two ends of the stamping forming assembly (2) are arranged in a quarter of a circular arc shape and symmetrically, first control the upper end of the stamping forming assembly (2) to descend by the mold overturning stamping assembly (31) to perform the first stamping on the steel plate to change the steel plate from a flat state to an arc state; S2: then control the upper end of the stamping forming assembly (2) to ascend by the mold overturning stamping assembly (31), ascend to the top end and overturn 180 degrees to the bottom end at the top end, then descend again, and control the two ends of the stamping forming assembly (2) to move synchronously to the opposite direction by the first linkage assembly (33), the second linkage assembly (34) and the mold closing assembly (35) at the same time of descending, so that the upper and lower ends and the left and right ends of the stamping forming assembly (2) form a complete circle, and the steel plate is stamped into the shape of a steel pipe by the cooperation of the two auxiliary forming assemblies (4).

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