CN117139457A - Full-automatic transfer device for bearing ring stamping - Google Patents
Full-automatic transfer device for bearing ring stamping Download PDFInfo
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- CN117139457A CN117139457A CN202311355557.2A CN202311355557A CN117139457A CN 117139457 A CN117139457 A CN 117139457A CN 202311355557 A CN202311355557 A CN 202311355557A CN 117139457 A CN117139457 A CN 117139457A
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- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 230000000712 assembly Effects 0.000 claims abstract description 18
- 238000000429 assembly Methods 0.000 claims abstract description 18
- 238000004080 punching Methods 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract description 2
- 230000007306 turnover Effects 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 13
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000011010 flushing procedure Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000007514 turning Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The application provides a full-automatic transfer device for stamping a bearing ring, which comprises three lower die assemblies, wherein the lower die assemblies comprise a lower die main body, a countersunk die hole and a supporting piece for supporting a workpiece, a plurality of positioning assemblies and a lifting die assembly are arranged on the side face of the lower die main body, a rotary driving assembly for driving the positioning assemblies and the lifting die assembly to synchronously and radially move is arranged on the outer side of the positioning assemblies and the lifting die assembly, a pair of transverse driving cylinders are arranged on the two sides of a punch press bed body, a push plate and two linear motors which are distributed at intervals up and down are arranged at the power output end of each transverse driving cylinder, a multifunctional clamping mechanism is arranged on each linear motor through a mounting frame, and comprises a bent arm, a connecting arm, a braking arm, an elastic clamping arm, a movable rod, a turnover motor, a telescopic cylinder and a clamping seat. The device has reasonable design, simple structure, automatic clamping, automatic material taking and discharging, automatic overturning and high living efficiency, and is suitable for large-scale popularization.
Description
Technical Field
The application belongs to the field of bearing production equipment, and particularly relates to a full-automatic transfer device for stamping a bearing ring.
Background
The bearing is an important part in modern mechanical equipment, and the main function of the bearing is to support a mechanical rotating body, reduce the friction coefficient in the motion process and ensure the rotation precision of the mechanical rotating body. The bearing is mostly composed of an inner ring, an outer ring, rolling bodies and a retainer, namely the inner ring and the outer ring are coaxially arranged, the rolling bodies are arranged between the inner ring and the outer ring, and the retainer is utilized to play a certain limiting role on the rolling bodies. The production process of the bearing ring comprises blanking, stamping/forging, heat treatment, turning, diameter adjustment, slotting, polishing and the like. The stamping equipment realizes workpiece stamping forming while the upper die and the lower die are clamped by rapidly driving the main shaft, such as a bearing ring stamping device for bearing forging and a novel punching mechanism of a novel punching machine of CN201220234941.8 disclosed in CN202120164481.5, wherein the stamped blank is generally a tube material and a solid column, and a solid blank is more common.
At present, the bearing ring with smaller size can be formed by one-step stamping, but for the bearing ring with larger size, the bearing ring needs to be formed by stamping from the front and back directions successively, whether the bearing ring is subjected to one-step stamping or two-step stamping, most of the bearing rings need to be manually held by pliers to take and put workpieces, and most of blank clamping needs to be manually realized, so that the cycle of stamping performed by stamping equipment is properly prolonged, and workers are required to keep high-strength work for a long time, so that the production efficiency is lower, and the yield of workshops is affected.
Disclosure of Invention
Aiming at the technical problems of the stamping equipment for the bearing rings, the application provides the full-automatic transfer device for stamping the bearing rings, which has reasonable design, can automatically clamp, automatically take and discharge materials, can realize automatic overturning and is beneficial to improving the life efficiency.
In order to achieve the purpose, the full-automatic transfer device for stamping the bearing ring comprises three lower die assemblies which are arranged in a straight line, wherein the lower die assemblies are arranged on a base, and the base is arranged on a punch press bed body. The one end that the arc mouth was kept away from to the elasticity centre gripping arm is provided with the movable rod that runs through in the middle of being connected with the linking arm, the power end of movable rod is provided with the upset motor, the one end that the movable rod was kept away from to the upset motor is provided with flexible jar, flexible jar passes through the grip slipper and is connected with the mounting bracket.
Preferably, the positioning assembly is matched with a first movable groove arranged on the side face of the lower die main body, the positioning assembly comprises a telescopic rod, a plug is arranged at the front end of the telescopic rod, a bent rod is arranged at the tail end of the telescopic rod, an installation pipe is connected with the tail end of the bent rod in a threaded manner, and the installation pipe is fixedly arranged on the lifting die assembly.
Preferably, the stripping assembly is matched with a second movable groove arranged on the side surface of the lower die main body, the stripping assembly comprises a sliding block, one end of the sliding block, which is opposite to the second movable groove, protrudes out of the outer side surface of the lower die main body, one side of the sliding block, which faces the second movable groove, is a step surface, return springs and guide keys which are located at different steps are arranged on the step surface, a main wedge surface is arranged at one end, which faces a supporting piece, of the sliding block, and a driven wedge surface matched with the main wedge surface is arranged at the bottom of the supporting piece.
Preferably, the rotary driving assembly comprises a driving ring, a plurality of guiding slots corresponding to the sliding blocks one by one are arranged on the side face of the driving ring, the slot faces of the guiding slots are V-shaped, one sides of the guiding slots and the outer sides of the sliding blocks form a semi-enclosed wall body, the radial thickness of the semi-enclosed wall body is gradually thickened, an inner gear is arranged on the inner side of the bottom of the driving ring, a driving wheel is arranged on the transmission side of the inner gear, and a stepping motor is arranged on the driving end of the driving wheel.
Preferably, one end of the sliding block, which is positioned outside the lower die main body, is provided with a guide chamfer in transition fit with the guide notch.
Preferably, a pair of steering gears is arranged on the inner side of the connecting arm, an output shaft of the steering gears penetrates out of the connecting arm and is in transmission connection with the braking arm, and a pair of braking feet distributed on two sides of the arc opening are arranged on the bottom surface of the braking arm.
Preferably, the elastic clamping arm comprises two S-shaped bodies, and the curvature radius of the front section of each S-shaped body is larger than that of the rear section of each S-shaped body.
Preferably, the clamping seat comprises an inverted T-shaped seat body, a U-shaped clamping plate is arranged at the top of the seat body, adjusting bolts are arranged on two sides of the clamping plate, and the end parts of the adjusting bolts are in clamping fit with the telescopic cylinders.
Preferably, the top surface of the lower die main body is provided with a special-shaped groove, the special-shaped groove comprises splayed sections distributed close to the multifunctional clamping mechanism, one end of each splayed section is provided with an arc section, and the end of each arc section is provided with a buffer opening.
Compared with the prior art, the application has the advantages and positive effects that:
1. according to the full-automatic transfer device for stamping the bearing rings, the preassembling module is used for being connected with equipment for conveying blanks, so that the multifunctional clamping mechanism can accurately take the blanks and put the blanks into the positive stamping module, a workpiece is taken away by the multifunctional clamping mechanism and turned over and put into the back flushing module after the first stamping is completed in the positive stamping module, and the workpiece is taken away by the multifunctional clamping mechanism and released into next-stage equipment connected with the device after the back flushing is completed.
2. According to the full-automatic transfer device for stamping the bearing rings, the rotary driving assembly can synchronously drive the positioning assembly and the stripping assembly, the first driving action enables the positioning assembly to clamp and align blanks, the accuracy of stamping nodes is improved, the second driving action enables the stripping assembly to eject a supporting piece and a workpiece to a certain height, and the multifunctional clamping mechanism is convenient to clamp. The rotary driving assembly, the positioning assembly and the stripping assembly adopt radial linkage to realize multiple operations, so that the device has higher action efficiency, can avoid the concentrated position of stamping pressure, and is beneficial to prolonging the actual service life of the device.
3. According to the full-automatic transfer device for stamping the bearing rings, the multifunctional clamping mechanism can realize feeding and backing actions under the action of the horizontal driving air cylinder, the clamping operation is carried out at different lower die assembly positions by driving the linear motor, the multifunctional clamping mechanism can clamp and release workpieces, overturning can be realized, and the device is beneficial to completing automatic stamping actions of the front face and the back face.
The device has reasonable design, simple structure, automatic clamping, automatic material taking and discharging, automatic overturning and high living efficiency, and is suitable for large-scale popularization.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is an isometric view of a full-automatic transfer device for stamping a bearing ring according to an embodiment;
FIG. 2 is a cross-sectional view of the lower die assembly, positioning assembly, stripping assembly and rotary drive assembly;
FIG. 3 is a bottom view of the lower die assembly, positioning assembly, stripping assembly and rotary drive assembly;
FIG. 4 is an isometric view of a lower die assembly, a positioning assembly, a stripping assembly, and a rotary drive assembly;
FIG. 5 is a top view of the lower die assembly, positioning assembly, stripping assembly and rotary drive assembly;
FIG. 6 is an isometric view of the positioning assembly, the ejector assembly, and the rotary drive assembly;
FIG. 7 is an isometric view of the multifunctional clamping mechanism and mounting bracket;
FIG. 8 is a side view of the multi-function clamping mechanism and mounting bracket;
FIG. 9 is an isometric view of a cross drive cylinder and push plate;
FIG. 10 is an isometric view of a portion of the structure of the multi-function clamping mechanism;
FIG. 11 is an isometric view of a brake arm;
in the above figures: 1. a lower die assembly; 1a, a lower die main body; 1b, a countersunk die hole; 1c, a supporting piece; 1d, a first movable groove; 1e, a second movable groove; 1f, a special-shaped groove; 1f1, splayed sections; 1f2, a circular arc section; 1f3, a buffer port; 2. a base; 3. a punch press bed body; 4. a positioning assembly; 41. a telescopic rod; 42. a plug; 43. bending a rod; 44. installing a pipe; 5. a stripping assembly; 51. a slide block; 52. a step surface; 53. a return spring; 54. a guide key; 55. a main wedge surface; 56. guiding chamfering; 6. a rotary drive assembly; 61. a driving ring; 62. a guide slot; 63. semi-surrounding the wall; 64. an internal gear; 65. a driving wheel; 66. a stepping motor; 7. a horizontal driving cylinder; 8. a push plate; 9. a linear motor; 10. a mounting frame; 11. a multifunctional clamping mechanism; 111. bending arms; 112. a connecting arm; 113. a brake arm; 113a, circular arc mouth; 113b, brake feet; 114. an elastic clamping arm; 114a, S-shaped body; 115. a movable rod; 116. a turnover motor; 117. a telescopic cylinder; 118. a clamping seat; 118a, a seat; 118b, splints; 118c, adjusting bolts; 119. steering engine.
Detailed Description
In order that the above objects, features and advantages of the application will be more clearly understood, a further description of the application will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other. For convenience of description, the words "upper", "lower", "left" and "right" are merely used herein to denote a correspondence with the upper, lower, left, and right directions of the drawing figures, and are not limiting on the structure.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced otherwise than as described herein, and therefore the present application is not limited to the specific embodiments of the disclosure that follow.
The embodiment of the application is as shown in figures 1-11, and the full-automatic transfer device for stamping the bearing ring comprises three lower die assemblies 1 which are arranged in a straight line, wherein the lower die assemblies 1 are arranged on a base 2, and the base 2 is arranged on a punch press bed body 3. The punch press bed body 3 does not include a punching main shaft and a hydraulic system, which are mature technologies of the existing punch press, and the embodiment is not described herein again. On the basis, the lower die assembly 1 comprises a lower die main body 1a, a countersunk die hole 1b is formed in the center of the lower die main body 1a, a workpiece is placed in the countersunk die hole 1b, a supporting piece 1c for supporting the workpiece is lifted, and as shown in fig. 1, the three lower die assemblies 1 provided by the application are a preassembling die set, a positive punching die set and a back flushing die set in sequence. The design of the counter die hole 1b of the pre-assembly module is larger, so that blanks can enter the counter die hole 1b more conveniently and rapidly after the blanks are connected with equipment for conveying blanks, the multifunctional clamping mechanism 11 can accurately take the blanks after the blanks are simply positioned, the taken blanks are placed in the positive punching module, the workpieces are taken away by the multifunctional clamping mechanism 11 and turned over and placed in the back flushing module after the first punching is completed in the positive punching module, and the workpieces are taken away by the multifunctional clamping mechanism 11 and released into next-stage equipment connected with the device after the back flushing is completed.
Further, the side of lower mould main part 1a is provided with a plurality of locating component 4 and the lift mould subassembly 5 that extend towards its inboard, locating component 4 sets up at the top of lift mould subassembly 5, locating component 4 is used for carrying out centre gripping and location to the work piece, lift mould subassembly 5 is used for carrying out wedge to pushing and making support 1c go up and down to support 1c, locating component 4 and the outside of lift mould subassembly 5 are provided with the rotary driving subassembly 6 that is used for driving the synchronous radial activity of two, the both sides of punch press bed body 3 are provided with a pair of horizontal driving pneumatic cylinder 7, the power take off end of horizontal driving pneumatic cylinder 7 is provided with push pedal 8, be provided with two upper and lower interval distribution's linear electric motor 9 on push pedal 8, the direction of activity of linear electric motor 9 is perpendicular with the drive direction of horizontal driving pneumatic cylinder, be provided with a mounting bracket 10 on each linear electric motor 9, be provided with multi-functional fixture 11 that extends down mould subassembly 1 direction on the mounting bracket 10, multi-functional fixture 11 includes a pair of bent arms 111, the front end of bent arms 111 is provided with the linking arm 112, the front end of bent arms 112 is provided with U-shaped linking arm 113, the front end of linking arm 112 is provided with the bent arms 113M, the front end 113M of bent arms 113 is provided with the flexible connection arm 113, the relative flexible connection of the flexible connection of flexible connection arm 115 a flexible connection end of flexible connection cylinder 116 a, the flexible connection end 115 a is provided with the flexible connection end of the flexible connection arm 116 a, the flexible connection end of flexible connection 116 a is provided with the flexible connection of the flexible connection bridge 116 a, the flexible connection 116 a is provided with the flexible connection of the flexible end of the flexible connection bridge 116 a, and the flexible connection bridge 116 a is provided with the flexible connection of flexible bridge is provided with the flexible bridge is 115 a, and has.
Specifically, the rotary driving assembly 6 can synchronously drive the positioning assembly 4 and the stripping assembly 5, the first driving action of the rotary driving assembly enables the positioning assembly 4 to clamp and align the blank, the positioning assembly 4 and the stripping assembly 5 are reversely driven to exit the stamping range after the blank is aligned, and the axis of the blank is opposite to the punch of the main shaft of the punch press, so that the accuracy of stamping nodes is ensured; the second driving action of the rotary driving assembly 6 causes the stripping assembly 5 to eject the supporting member 1c together with the workpiece to a certain height, and the exposed part thereof is clamped by the multifunctional clamping mechanism 11. The rotary driving assembly 6 in the application can realize radial linkage of the positioning assembly 4 and the drawing assembly 5 though rotating, and simultaneously drives the supporting piece 1c to lift, so that the application has higher action efficiency, can avoid the concentrated position of the stamping pressure, is beneficial to prolonging the actual service life of the device, and has higher space intensive degree.
As for the multifunctional clamping mechanism 11, it can realize feeding and retracting actions under the action of the horizontal drive cylinder 7, and is driven by the linear motor 9 to switch between different positions of the lower die assembly 1 and perform the clamping operation thereof. The mounting frame 10 is used for presetting the multifunctional clamping mechanisms 11 to corresponding heights, particularly the linear motor 9 at a lower position, and the vertical height of the mounting frame 10 connected with the multifunctional clamping mechanisms is higher, so that the two sets of multifunctional clamping mechanisms 11 are ensured to have uniform working heights, and the punching machine bed body 3 is prevented from expanding to a larger area to influence the actual utilization rate of work stations of a workshop. More specifically, the bending arm 111 is used to realize angle turning and transition, so that the main working surface of the multifunctional clamping mechanism 11 covers the range of the lower membrane assembly. The elastic clamping arm 114 extends towards the direction of the countersunk head die hole 1b where the workpiece is positioned under the drive of the telescopic cylinder 117, the clamping caliber of the elastic clamping arm is just opposite to the elastic clamping arm 114 before the workpiece is not clamped completely, and a staggered clamping mechanism is formed by the braking arm 113 and the elastic clamping arm 114, but the continuous extending action of the elastic clamping arm 114 is not influenced, but the braking action is played on the workpiece, so that the workpiece cannot be separated from the countersunk head die hole 1b in the passive clamping process; when the workpiece needs to be released, the brake arm 113 automatically turns to the other side, namely is overlapped above the elastic clamping arm 114, the circular arc opening 113a still faces the workpiece, the pressure of the brake arm 113 acting on the workpiece is opposite to the retracting direction of the elastic clamping arm 114, and in this way, when the telescopic cylinder 117 drives the elastic clamping arm 114 to retract, the workpiece abuts against the circular arc opening 113a until the workpiece is rolled down from the clamping caliber of the elastic clamping arm 114, and the workpiece is reasonably released, so that the transfer of the workpiece among different lower die assemblies 1 is completed. In order to improve the quality of a punched finished product, the elastic clamping arm 114 provided by the application can be turned under the drive of the turning motor 116, the punching front surface of the elastic clamping arm is turned to the lower surface, and the other surface of the elastic clamping arm is turned up to be punched by the punching machine head, so that the punched back surface is obtained. It should be noted that the punching machine can be matched with two punching spindles at a time, so that different surfaces of two workpieces can be punched in one punching stroke, which is beneficial to improving the production efficiency and the actual utilization rate of the equipment.
Because the diameter of the workpiece before being punched is smaller than that of the countersunk die hole 1b, in order to improve the positioning efficiency of the positioning assembly 4, the positioning assembly 4 provided by the application is matched with the first movable groove 1d arranged on the side surface of the lower die main body 1a, the positioning assembly 4 comprises a telescopic rod 41, the front end of the telescopic rod 41 is provided with a top head 42, the tail end of the telescopic rod 41 is provided with a bent rod 43, the tail end of the bent rod 43 is in threaded connection with a mounting pipe 44, and the mounting pipe 44 is fixedly arranged on the lifting die assembly 5. Wherein, the mounting pipe 44 and the stripping assembly 5 are driven by the rotary driving assembly 6 at the same time, while the telescopic rod 41 moves towards the direction of the workpiece, the plug 42 contacts the workpiece at the same time, and the workpiece is ensured to be at a relative center position in a three-point clamping manner; further, the rotary driving assembly 6 does not need to be rotated to the bottom while driving for the first time, only the top 42 is required to be ensured to be contacted with the workpiece, and the rotary driving assembly 6 can be driven to the bottom when driving for the second time, namely when the demolding assembly 5 plays a role in demolding, and the top 42 has a telescopic function although being used for the workpiece again, so that the pressure of the top 42 acting on the workpiece does not influence the supporting piece 1c to support the workpiece.
In order to improve the stripping efficiency of the stripping assembly 5, the stripping assembly 5 provided by the application is matched with a second movable groove 1e arranged on the side surface of a lower die main body 1a, the stripping assembly 5 comprises a sliding block 51, one end of the sliding block 51, which is opposite to the second movable groove 1e, protrudes out of the outer side surface of the lower die main body 1a, one side of the sliding block 51, which is opposite to the second movable groove 1e, is provided with a step surface 52, the step surface 52 is provided with return springs 53 and guide keys 54 which are positioned at different steps, one end of the sliding block 51, which is opposite to a supporting piece 1c, is provided with a main wedge surface 55, and the bottom of the supporting piece 1c is provided with a driven wedge surface matched with the main wedge surface. Wherein the sliding block 51 can move radially under the drive of the rotary driving assembly 6, the guiding key 54 provides guiding to ensure the reliability of the movement, and the main wedge surface can gradually lift the supporting member 1c and the workpiece, the final lifting height of the main wedge surface depends on the slope of the main wedge surface 55, so that the workpiece does not need to be completely lifted out of the countersunk head die hole 1b, and otherwise the centering efficiency of the elastic clamping arm 114 is affected. The return spring 53 is elastically compressed when the rotary drive unit 6 rotates forward, and gradually releases the elastic force when it rotates backward, so that the slider 51 is finally returned and leaves the range of the pressing force.
In order to improve the driving efficiency of the rotary driving assembly 6, the rotary driving assembly 6 provided by the application comprises a driving ring 61, a plurality of guide notches 62 which are in one-to-one correspondence with the sliding blocks 51 are arranged on the side surface of the driving ring 61, the groove surface of the guide notch 62 is V-shaped, a semi-enclosed wall 63 is formed between one side of the guide notch and the outer side of the sliding blocks 51, the radial thickness of the semi-enclosed wall 63 is gradually thickened, an inner gear 64 is arranged on the inner side of the bottom of the driving ring 61, a driving wheel 65 is arranged on the transmission side of the inner gear 64, and a stepping motor 66 is arranged on the driving end of the driving wheel 65. The step motor 66 is used for controlling the forward and reverse rotation of the driving wheel 65 and the internal gear 64, and the internal gear 64 and the driving ring 61 rotate synchronously; the guide notch 62 plays a role in clamping the end part of the sliding block 51 when the sliding block is stationary, the guide notch 62 rotates along with the driving ring 61 and is in sliding fit with the sliding block 51, and the bottom of the sliding block 51 can be lined and the tail end of the sliding block 51 is slightly lifted, so that the main wedge surface is convenient to be lined with the driven wedge surface to lift the supporting piece 1 c; in particular, during rotation of the semi-enclosure wall 63, the wall thereof exerts a radial bias on the slider 51, which causes the slider 51 to move radially until the support 1c is passively lifted. In this way, the rotary driving device can drive the positioning assembly 4 and the stripping assembly 5 to radially move in a plane rotation mode, so that the workpiece is positioned and properly jacked, the driving effect is good, the stability is high, and the space utilization rate is high.
In order to improve the matching stability of the sliding block 51 and the guide notch 62, one end of the sliding block 51, which is positioned outside the lower die main body 1a, is provided with a guide chamfer in transition fit with the guide notch 62, and the guide chamfer can generate smooth transition with the inclined surface of the guide notch 62, so that the sliding block 51 has better sensitivity when the driving ring 61 rotates.
In order to improve the automatic performance of the brake arm 113, a pair of steering gears 119 are arranged on the inner side of the connecting arm 112, an output shaft of each steering gear 119 penetrates through the connecting arm 112 and is in transmission connection with the brake arm 113, and a pair of brake feet distributed on two sides of the circular arc opening 113a are arranged on the bottom surface of the brake arm 113. The steering engine 119 is direct power for overturning the brake arm 113 and is used for controlling overturning time and overturning angle of the brake arm 113; the brake feet can be supported on the surface of the lower die main body 1a at the front stamping station and are appropriately clamped at the groove ends of the special-shaped grooves so as to fully brake the workpiece and ensure the clamping efficiency of the brake arms 113 and the elastic clamping arms 114.
In order to improve the clamping efficiency of the elastic clamping arm 114, the elastic clamping arm 114 provided by the present application includes two S-shaped bodies 114a, wherein the radius of curvature of the front section of the S-shaped bodies is larger than that of the rear section of the S-shaped bodies. The front section of the S-shaped body acts primarily as a guide, which applies pressure to the front section after contact with the curved surface of the workpiece, and gradually opens the clamping opening as the resilient clamping arms 114 continue to extend to achieve complete clamping of the workpiece. The rear section of the S-shaped body directly plays a role in clamping, so that the clamping caliber of the S-shaped body can be slightly smaller than the diameter of a finished workpiece product, and the stability of the workpiece along with the transportation of the multifunctional clamping mechanism 11 is improved.
In order to improve the clamping accuracy of the multifunctional clamping mechanism 11, fine adjustment can be achieved by controlling the position of the telescopic cylinder 117 in addition to the start-stop timing of the linear motor 9. If the clamping seat 118 comprises an inverted T-shaped seat body 118a, a U-shaped clamping plate 118b is arranged at the top of the seat body 118a, adjusting bolts 118c are arranged at two sides of the clamping plate 118b, and the end parts of the adjusting bolts 118c are in clamping fit with the telescopic cylinders 117. The purpose of fine adjustment can be achieved by adjusting the front and rear positions of the telescopic cylinder 117 between the clamping plates and locking with the adjusting bolts, so that the elastic clamping arm 114 and the brake arm 113 can clamp and release the workpiece more efficiently.
In order to improve the stamping efficiency and the workpiece transferring efficiency of the device, the top surface of the lower die main body 1a is provided with a special-shaped groove 1f, the special-shaped groove 1f comprises splayed sections 1f1 distributed close to the multifunctional clamping mechanism 11, one end of each splayed section 1f1 is provided with an arc section 1f2, and the end part of each arc section 1f2 is provided with a buffer port 1f3. The groove surface of the special-shaped groove 1f provides a certain buffer distance for the descending of the main shaft of the punching machine, and simultaneously provides reference and guide for the expansion and contraction of the multifunctional clamping mechanism 11, so that the clamping center of the elastic clamping arm 114 cannot be excessively large with the error of the countersunk die hole 1b, and the buffer port 1f3 gives out a reasonable expansion and contraction distance for the front end of the elastic clamping arm 114, so that the actual clamping efficiency of the elastic clamping arm 114 is ensured.
The present application is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present application without departing from the technical content of the present application still belong to the protection scope of the technical solution of the present application.
Claims (9)
1. The full-automatic transfer device for stamping the bearing rings comprises three lower die assemblies which are arranged in a straight line, wherein the lower die assemblies are arranged on a base, the base is arranged on a punch press bed body, and the full-automatic transfer device is characterized in that the three lower die assemblies are a preassembling die set, a positive punching die set and a recoil die set in sequence, the lower die assemblies comprise a lower die main body, a countersunk die hole is arranged in the center of the lower die main body, a workpiece and a supporting piece for supporting the workpiece are placed in the countersunk die hole, a plurality of positioning assemblies and a lifting die assembly which extend towards the inner side of the lower die main body are arranged on the side surface of the lower die main body, the positioning assemblies are arranged at the top of the lifting die assembly, the positioning assemblies are used for clamping and positioning the workpiece, the lifting die assembly is used for pushing the supporting piece in a wedge direction and lifting the supporting piece, the outer sides of the positioning component and the stripping component are provided with rotary driving components for driving the positioning component and the stripping component to synchronously move radially, two sides of the punch press bed body are provided with a pair of transverse driving cylinders, the power output end of each transverse driving cylinder is provided with a push plate, two linear motors which are vertically distributed at intervals are arranged on each push plate, the moving direction of each linear motor is perpendicular to the driving direction of each transverse driving cylinder, each linear motor is provided with a mounting frame, the mounting frame is provided with a multifunctional clamping mechanism extending towards the direction of the lower die component, each multifunctional clamping mechanism comprises a pair of bent arms, the front ends of the bent arms are provided with U-shaped connecting arms, the front ends of the connecting arms are rotatably provided with M-shaped braking arms, each braking arm comprises an arc opening opposite to a countersunk die hole, and the opposite sides of the arc openings are provided with elastic clamping arms, the one end that the arc mouth was kept away from to the elasticity centre gripping arm is provided with the movable rod that runs through in the middle of being connected with the linking arm, the power end of movable rod is provided with the upset motor, the one end that the movable rod was kept away from to the upset motor is provided with flexible jar, flexible jar passes through the grip slipper and is connected with the mounting bracket.
2. The full-automatic transfer device for stamping a bearing ring according to claim 1, wherein the positioning assembly is matched with a first movable groove arranged on the side surface of the lower die main body, the positioning assembly comprises a telescopic rod, a plug is arranged at the front end of the telescopic rod, a bent rod is arranged at the tail end of the telescopic rod, an installation pipe is connected with the tail end of the bent rod in a threaded manner, and the installation pipe is fixedly arranged on the lifting die assembly.
3. The full-automatic transfer device for stamping the bearing ring according to claim 2, wherein the stripping assembly is matched with a second movable groove arranged on the side surface of the lower die main body, the stripping assembly comprises a sliding block, one end of the sliding block, which is opposite to the second movable groove, protrudes out of the outer side surface of the lower die main body, one side of the sliding block, which is opposite to the second movable groove, is a stepped surface, return springs and guide keys which are positioned at different steps are arranged on the stepped surface, a main wedge surface is arranged at one end of the sliding block, which is opposite to the supporting piece, and a driven wedge surface matched with the main wedge surface is arranged at the bottom of the supporting piece.
4. The full-automatic transfer device for stamping the bearing ring according to claim 3, wherein the rotary driving assembly comprises a driving ring, a plurality of guiding slots corresponding to the sliding blocks one by one are arranged on the side face of the driving ring, the slot faces of the guiding slots are V-shaped, one sides of the guiding slots and the outer sides of the sliding blocks form a semi-enclosed wall body, the radial thickness of the semi-enclosed wall body is gradually thickened, an inner gear is arranged on the inner side of the bottom of the driving ring, a driving wheel is arranged on the transmission side of the inner gear, and a stepping motor is arranged on the driving end of the driving wheel.
5. The full-automatic transfer device for stamping a bearing ring according to claim 4, wherein one end of the sliding block, which is positioned outside the lower die main body, is provided with a guide chamfer in transition fit with the guide notch.
6. The full-automatic transfer device for stamping the bearing rings according to claim 1 or 5, wherein a pair of steering gears is arranged on the inner side of the connecting arm, an output shaft of the steering gears penetrates out of the connecting arm and is in transmission connection with the braking arm, and a pair of braking feet distributed on two sides of the arc opening are arranged on the bottom surface of the braking arm.
7. The full-automatic transfer device for stamping a bearing ring according to claim 1, wherein the elastic clamping arm comprises two S-shaped bodies, and a front-section curvature radius of the S-shaped bodies is larger than a rear-section curvature radius of the S-shaped bodies.
8. The full-automatic transfer device for stamping the bearing rings according to claim 1, wherein the clamping seat comprises an inverted T-shaped seat body, a U-shaped clamping plate is arranged at the top of the seat body, adjusting bolts are arranged on two sides of the clamping plate, and the end parts of the adjusting bolts are in clamping fit with the telescopic cylinders.
9. The full-automatic transfer device for stamping the bearing rings according to claim 1, wherein the top surface of the lower die main body is provided with a special-shaped groove, the special-shaped groove comprises splayed sections distributed close to the multifunctional clamping mechanism, one end of each splayed section is provided with a circular arc section, and the end of each circular arc section is provided with a buffer opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311355557.2A CN117139457B (en) | 2023-10-19 | 2023-10-19 | Full-automatic transfer device for bearing ring stamping |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311355557.2A CN117139457B (en) | 2023-10-19 | 2023-10-19 | Full-automatic transfer device for bearing ring stamping |
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| CN117139457A true CN117139457A (en) | 2023-12-01 |
| CN117139457B CN117139457B (en) | 2024-04-30 |
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| CN202311355557.2A Active CN117139457B (en) | 2023-10-19 | 2023-10-19 | Full-automatic transfer device for bearing ring stamping |
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|---|---|
| CN117139457B (en) | 2024-04-30 |
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