CN111760969A - Multi-station co-pressing punch press - Google Patents
Multi-station co-pressing punch press Download PDFInfo
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- CN111760969A CN111760969A CN202010740508.0A CN202010740508A CN111760969A CN 111760969 A CN111760969 A CN 111760969A CN 202010740508 A CN202010740508 A CN 202010740508A CN 111760969 A CN111760969 A CN 111760969A
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- sliding
- rod
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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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
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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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/04—Centering the work; Positioning the 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
- B21D55/00—Safety devices protecting the machine or the operator, specially adapted for apparatus or machines dealt with in this subclass
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- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention relates to the technical field of punching machines. The multi-station co-pressing punch press is capable of improving the machining efficiency of workpieces, and comprises a punching mechanism for punching the workpieces and a hydraulic cylinder for driving the punching mechanism to work; the stamping mechanism comprises a rotating column arranged on the lower surface of the top plate of the rack; the lower end of the rotating column is connected with the upper end of the supporting column through a rotary joint; the lower part of the rotating column is coaxially provided with a rotary disc, and a plurality of groups of stamping assemblies are uniformly arranged on the rotary disc in an annular shape; the stamping assembly can stamp a workpiece under the driving of the output end of the hydraulic cylinder. The invention can rapidly realize the switching and the adjustment of the stamping assembly and greatly improve the production efficiency of stamping processing.
Description
Technical Field
The invention relates to the technical field of punching machines, in particular to a multi-station co-pressing punching machine.
Background
The press machine is a comprehensive device which generates motive power through a hydraulic cylinder, a motor, an air cylinder and the like, applies acting force on a workpiece through a series of complex mechanical transmission and is used for shearing, compacting, punching and the like of the workpiece. The punching machine is a main category in the press machine, and is mainly used for punching and bending workpieces. In the normal use process of the punch press, the punching position precision and the pressure precision are important indexes. At present, the conventional punching machine mainly has the following problems to be improved in the use process.
1. For punching and bending different materials, pressures with different sizes are required, the pressure is too low, the forming is not standard, secondary processing is often required, and the workpiece is directly damaged or even scrapped if the pressure is too high. Therefore, the pressure limiting protection of the punch is particularly important in the using process, the existing punches mostly adopt mechanical pressure limiting structures, but the pressure limiting structures are complex and inaccurate in pressure limiting adjustment mode in the using process, and great troubles are caused for practical use.
2. In the process of forming a workpiece by a punch press, different positions on the workpiece are often processed by using different punching tools and dies in a matching manner, so that one workpiece is often processed on different punch presses for multiple times. In order to improve the efficiency, theoretically, a plurality of punching knives and dies can be integrated to realize the forming by one stroke. However, in practical situations, parameters such as hole depth, hole diameter, hole shape, bending angle, thickness and the like of different positions of the same workpiece have certain differences, and therefore, the method is not suitable for one-step forming in many cases. And the frequent replacement of the cutter and the die obviously does not meet the requirement of improving the production efficiency.
3. Because of the influence of raw material feeding error, equipment shake etc., traditional punch press often can't realize the high accuracy shaping requirement to the work piece, and the high accuracy punch press on the existing market is complicated, the cost is high again. Therefore, if a set of simple position adjustment structure can be developed to be used with a punch press, the above problems can be greatly alleviated.
Disclosure of Invention
The invention aims to provide a multi-station co-pressing punch capable of improving the machining efficiency of workpieces.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: a multi-station co-pressing punch comprises a frame and a punching device;
the stamping device comprises a stamping mechanism for stamping a workpiece and a hydraulic cylinder for driving the stamping mechanism to work; the stamping mechanism is arranged between a top plate and a bottom plate of the rack, the hydraulic cylinder is fixedly arranged on the top plate of the rack, and the output end of the hydraulic cylinder faces downwards and is in transmission connection with the stamping mechanism;
the stamping mechanism comprises a rotating column arranged on the lower surface of a top plate of the frame, and the rotating column is driven by a switching motor fixedly arranged on the top plate; the lower end of the rotating column is connected with the upper end of a supporting column through a rotary joint, and the supporting column is fixed on a bottom plate of the rack; the lower part of the rotating column is coaxially provided with a rotary disc, and a plurality of groups of stamping assemblies are uniformly arranged on the rotary disc in an annular shape; the stamping assembly can stamp a workpiece under the driving of the output end of the hydraulic cylinder.
Preferably, the stamping assembly comprises a punch and a die which are matched with each other, the punch and the die are arranged up and down, and the workpiece is positioned between the punch and the die;
a vertical step-shaped mounting hole is formed in the position, close to the edge, of the upper surface of the rotary disc, and the mounting hole is large in upper part and small in lower part and penetrates through the rotary disc; the punch stem is matched with the lower section of the mounting hole and penetrates through the mounting hole; the outer surface of the lower section of the mounting cap is provided with external threads and is in threaded connection with the upper section of the mounting hole; a reset spring is sleeved outside one section of the punch rod positioned in the lower section of the mounting cap, a reset plate is arranged on the punch rod above the reset spring, and the reset spring is positioned between the reset plate and the stepped surface of the mounting hole; an end disc is arranged at the upper end of the punch rod.
Preferably, an outer hexagonal screwing part is arranged on the side wall of the upper section of the mounting cap.
Preferably, a vertical sliding hole is formed in the rotary disc on one side, close to the rotating column, of the mounting hole, and a sliding rod matched with the sliding hole penetrates through the sliding hole; the lower end of the sliding rod is provided with a transverse bracket, and the die is fixedly arranged on the bracket and is opposite to the punch rod; the upper end of the sliding rod is in transmission connection with the punch through a linkage assembly.
Preferably, the linkage assembly comprises a first cross rod fixedly arranged on the side surface of the upper section of the rotating column and extending along the radial direction of the rotating column, and a first pulley is arranged at the bottom of the first cross rod; a second cross rod extending along the radial direction of the plunger is arranged on the side wall of the upper section of the plunger, and a second pulley is arranged at the overhanging end of the second cross rod; the pull rope is fixedly arranged at the overhanging end of the first cross rod, and the other end of the pull rope sequentially bypasses the second pulley and the first pulley and then is fixedly connected with the upper end of the sliding rod.
Preferably, a triangular reinforcing plate is arranged between the side wall of the rotating column and the first cross rod and between the side wall of the rotating column and the rotary disk.
Preferably, the upper end of the punch rod is provided with a connecting pin, and the upper end of the connecting pin is provided with threads and is matched with a nut; the end disc is locked on the connecting pin through a nut, a containing hole is formed in the top surface of the end disc, and the nut is located in the containing hole.
Preferably, a plurality of groups of conveying clamping rollers for conveying the belt-shaped workpiece are uniformly arranged on the rack along the length direction of the rack; a stamping device and two position adjusting mechanisms are arranged between two adjacent groups of conveying clamping rollers, and the position adjusting mechanisms are positioned on two sides of the stamping device;
the position adjusting mechanism comprises a sliding groove which is arranged on the rack and extends along the width direction of the workpiece, a clamp mounting plate is arranged in the sliding groove, the clamp mounting plate is U-shaped, and the bottom of the clamp mounting plate is clamped in the sliding groove and forms sliding fit with the sliding groove; a clamping component for clamping a workpiece is arranged between the left side plate and the right side plate of the clamp mounting plate; and a driving assembly for driving the mounting plate to reciprocate along the length direction of the sliding groove is further arranged in the sliding groove.
Preferably, the driving assembly comprises a lead screw which is arranged in the sliding groove and extends along the length direction of the sliding groove, and one end of the lead screw is in transmission connection with the stepping motor; the bottom of the fixture mounting plate is fixedly provided with a connecting sleeve, and the connecting sleeve is sleeved outside the screw rod and forms threaded fit with the screw rod.
Preferably, the clamping assembly comprises a guide groove arranged on the upper surface of the bottom of the clamp mounting plate, the guide groove extends along the length direction of the clamp mounting plate, a sliding seat is further arranged between the left side edge and the right side edge in the clamp mounting plate, a guide block is arranged at the bottom of the sliding seat, and the guide block is arranged in the guide groove and forms sliding fit with the guide groove; the inner wall of the left side of the clamp mounting plate is also provided with a transverse electric push rod, and the telescopic end of the electric push rod is fixedly connected with the left side face of the sliding seat; vertical rotating rollers are arranged on the right side face of the sliding seat and the right side edge of the clamp mounting plate, and a workpiece is clamped between the rotating rollers.
The beneficial effects of the invention are concentrated and expressed as follows: switching and adjustment of realization punching press subassembly that can be quick, very big improvement punching press processing's production efficiency. Specifically, when different stamping assemblies need to be switched in the using process, the switching motor is started to drive the rotating column to rotate, so that the rotating disc is driven to rotate, and the stamping assemblies needing to be used are switched to the position below the output end of the hydraulic cylinder. Compared with the traditional mode of directly replacing the die, the invention saves a large amount of time for replacing the stamping assembly, and is particularly suitable for stamping the special-shaped workpiece with more complex structure.
Drawings
FIG. 1 is a top view of the overall layout of the present invention;
FIG. 2 is a schematic structural view of a punching apparatus;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a schematic structural view of a position adjustment mechanism;
FIG. 5 is a schematic view of the installation of the air pressure adjustment cylinder;
fig. 6 is an enlarged view of a portion B in fig. 5.
Detailed Description
As shown in fig. 1 to 6, the punch press has various functions of fine adjustment of punching position, rapid switching of punching components, pressure limiting protection and the like, and has excellent comprehensive performance. The invention comprises a frame 1 and a stamping device 2. The rack 1 is used as an installation foundation for each functional device and equipment, and can be specifically designed according to the space layout of a site and the layout of functional equipment on the site, and as shown in fig. 2, the rack 1 comprises a top plate, a bottom plate and a vertical column. The stamping device 2 is arranged on the frame 1 and is used for stamping a workpiece.
Aiming at various problems of the existing punch, the invention improves the existing punch from the following directions so as to achieve the purpose of improving the comprehensive performance of the punch.
First, the present invention is particularly suitable for press working of a strip-shaped workpiece and also for press working of a strip-shaped workpiece in view of the overall layout. In the process of stamping, in order to improve the stamping precision and the yield of workpieces, as shown in fig. 1, a plurality of groups of conveying nip rollers 3 for conveying belt-shaped workpieces are uniformly arranged on the machine frame 1 along the length direction of the machine frame 1. The conveying nip roller 3 is generally composed of an upper roller and a lower roller which are linked in synchronization, and both nip and convey a workpiece. A stamping device 2 and two position adjusting mechanisms 4 are arranged between every two adjacent groups of conveying clamping rollers 3, and the position adjusting mechanisms 4 are located on two sides of the stamping device 2. When the device is used, the conveying clamping rollers 3 convey the corresponding positions of the workpieces in the longitudinal direction to the positions below a punch rod and a die of the punching device 2, and the position adjusting mechanism 4 is used for adjusting the positions of the workpieces in the transverse direction, namely the positions of the workpieces corresponding to the punching device 2 in the width direction.
As shown in fig. 4, the position adjustment mechanism 4 includes a slide groove 5 provided on the frame 1 to extend in the width direction of the workpiece, and the slide groove 5 is normally fixedly provided directly on the bottom plate of the frame 1. And a clamp mounting plate 6 is arranged in the sliding groove 5, the clamp mounting plate 6 is U-shaped, and the bottom of the clamp mounting plate 6 is clamped in the sliding groove 5 and forms sliding fit with the sliding groove 5. And a driving assembly for driving the mounting plate to reciprocate along the length direction of the sliding groove 5 is also arranged in the sliding groove 5. The driving assembly has more specific forms, such as: the driving assembly may be a cylinder, an electric push rod, or the like, which is disposed in the sliding groove 5 and extends along the length direction of the sliding groove 5, and of course, as shown in the figure, the driving assembly includes a lead screw 7, which is installed in the sliding groove 5 and extends along the length direction of the sliding groove 5, and one end of the lead screw 7 is in transmission connection with a stepping motor 8. The bottom of the clamp mounting plate 6 is fixedly provided with a connecting sleeve 9, and the connecting sleeve 9 is sleeved outside the screw 7 and forms a threaded fit with the screw 7. The stepping motor 8 drives the lead screw 7, and the lead screw 7 drives the connecting sleeve 9 to move, so as to drive the clamp mounting plate 6 to move. On this basis, in order to further improve the motion stability of the fixture mounting plate 6, the number of the connecting sleeves 9 is at least two, and the connecting sleeves 9 are uniformly distributed at the bottom of the fixture mounting plate 6. Even can also be in be provided with the limit layer board on the wall of the front and back both sides of anchor clamps mounting panel 6, the limit layer board is taken and is leaned on the top at the both sides wall of sliding tray 5, and the structure of limit layer board is comparatively simple, and its similar two pterygoid laminas are attached on the both sides notch of sliding tray 5 to play the effect of location direction, not shown in the figure.
Clamping components for clamping workpieces are arranged between the left side plate and the right side plate of the clamp mounting plate 6, the simplest clamping components are two parallel clamping plates, the clamping plates are driven by air cylinders, and naturally, the clamping plates can be driven by a linear motor and the like as a prime mover. As shown in fig. 4, the clamping assembly of the present invention may also adopt the following structure: the clamping assembly includes a guide groove 10 provided on the upper surface of the bottom of the clamp mounting plate 6, the guide groove 10 extending in the length direction of the clamp mounting plate 6, that is, in the left-right direction in fig. 4. Still be provided with sliding seat 11 between the left and right sides limit in the anchor clamps mounting panel 6, sliding seat 11's bottom is provided with the guide block, the guide block is installed in guide slot 10 and constitutes sliding fit with guide slot 10.
Still be provided with horizontal electric putter 12 on the inner wall of 6 left sides of anchor clamps mounting panel, electric putter 12's flexible end and the left surface rigid coupling of sliding seat 11. The electric push rod 12 drives the sliding seat 11 to move, and a workpiece is clamped by the sliding seat 11 and one side wall of the clamp mounting plate 6. And finally, the driving assembly drives the clamp mounting plate 6 to move integrally, so that the transverse position of the workpiece is adjusted. In addition, in order to adjust the horizontal position during the longitudinal transportation, the friction between the workpiece and the clamping assembly should be reduced as much as possible, so that the vertical rotating rollers 13 are arranged on the right side surface of the sliding seat 11 and the right side edge of the clamp mounting plate 6, and the workpiece is clamped between the rotating rollers 13. On the basis, in order to improve the self-moving stability of the sliding seat 11, a transverse guide rod 14 is further arranged on the right side face of the bottom of the sliding seat 11, and the right end of the guide rod 14 penetrates through a guide hole in the right side edge of the clamp mounting plate 6 and is in sliding fit with the guide hole.
In summary, the position of the belt-shaped workpiece relative to the punching device is mainly achieved by the conveying nip roller 3 and the position adjusting mechanism 4. Wherein the position of the workpiece in the longitudinal direction is mainly achieved by the servo action of the conveying nip rollers 3, and the adjustment of the position of the workpiece in the transverse direction is mainly achieved by the position adjusting mechanism 4. The clamping component of the position adjusting mechanism 4 is driven by the driving component to reciprocate along the length direction of the sliding groove 5, so that the position of the workpiece clamped on the clamping component is adjusted in the width direction of the workpiece. And after the position of the workpiece is adjusted in place, the punching component punches the workpiece at high precision. The invention adopts a plurality of position adjusting mechanisms to act on different positions of the workpiece in the length direction at the same time, thereby ensuring the stable movement of the workpiece on the whole, preventing the deformation and dislocation of the workpiece caused by local pressure application and ensuring the accuracy of the whole stamping procedure.
As shown in fig. 2, the press machine 2 according to the present invention includes a press mechanism for press-working a workpiece, and a hydraulic cylinder 15 for driving the press mechanism. The stamping mechanism is arranged between a top plate and a bottom plate of the rack 1, the hydraulic cylinder 15 is fixedly arranged on the top plate of the rack 1, and an output end 16 of the hydraulic cylinder 15 faces downwards and is in transmission connection with the stamping mechanism.
Secondly, in order to prevent the workpiece from being damaged by excessive pressure, from the perspective of pressure limiting protection, as shown in fig. 5 and 6, the output end 16 of the invention is provided with a pressure limiting mechanism, as the name suggests, the pressure limiting mechanism has the function of preventing the hydraulic cylinder 15 from directly outputting excessive pressure to the workpiece, the pressure limiting mechanism comprises an air pressure adjusting cylinder 17, the top of the air pressure adjusting cylinder 17 is provided with a column hole matched with the output end 16, and the air pressure adjusting cylinder 17 is sleeved outside the output end 16 through the column hole. A contact disc 23 is arranged below the air pressure adjusting cylinder 17, and the contact disc 23 is fixedly connected with the air pressure adjusting cylinder 17 through a connecting column 24. In this way, the output 16 of the hydraulic cylinder 15 does not directly transmit pressure to the ram 2, but indirectly transmits pressure to the ram 2 via the pneumatic control cylinder 17, the connecting column 24 and the contact disc 23.
In order to limit the pressure, a pressure limiting assembly is arranged between the output end 16 and the air pressure adjusting cylinder 17, and as shown in fig. 5 and 6, the pressure limiting assembly comprises an extrusion boss 18, a stepped hole 19, a telescopic pin 20, a guide disc 21 and a spiral spring 22. The side wall of the output end 16 is provided with a transverse stepped hole 19, a large-size section of the stepped hole 19 faces outwards, namely the stepped hole 19 is large outside and small inside, and a telescopic pin 20 is arranged in the stepped hole 19. The telescopic pin 20 is matched with the small-sized section of the stepped hole 19, and the inner end of the telescopic pin is arranged in the small-sized section of the stepped hole 19 in a penetrating mode and can slide in the stepped hole 19.
The middle section of the telescopic pin 20 is provided with a guide disc 21 matched with the large-size section of the stepped hole 19 and forms sliding fit with the large-size section of the stepped hole 19, certain limiting guide is carried out on the sliding of the telescopic pin 20 through the guide disc 21, the moving stability of the telescopic pin is improved, and in order to prevent the telescopic pin 20 from rotating in the stepped hole 19, the telescopic pin 20 and the stepped hole 19 can be selectively set to be square, hexagonal and the like. A coil spring 22 is further arranged in the small-size section of the stepped hole 19, and the coil spring 22 is located between the inner end face of the telescopic pin 20 and the bottom of the stepped hole 19 and provides an elastic support for sliding of the telescopic pin 20. An annular extrusion boss 18 is arranged on the inner wall of the air pressure adjusting cylinder 17, a first contact groove of the inclined downhill output end 16 is arranged on one side, close to the telescopic pin 20, of the extrusion boss 18, and a second contact groove matched with the first contact groove is arranged at the outer end of the telescopic pin 20.
In the normal state, the coil spring 22 provides a sufficient spring force to the retractable pin 20 to prevent the retractable pin 20 from retracting into the stepped bore. The telescopic pin 20 arranged on the output end 16 can abut against the extrusion boss 18 of the air pressure adjusting cylinder 17, so that the acting force of the output end is directly applied to the extrusion boss 18, and finally the acting force is transmitted to the punching mechanism through the connecting column 24 and the contact disc 23 in sequence, and the punching of a workpiece is completed. When the pressure is too high, the supporting force of the coil spring 22 is not enough to maintain the extending state of the telescopic pin 20, and the telescopic pin 20 is pressed back into the stepped hole 19, so that the output end 16 and the pneumatic adjusting cylinder 17 are actually in power release. Thereby effectively preventing the damage to the workpiece caused by overlarge pressure. The pressure limiting assemblies can be vertically provided with a plurality of groups, and as shown in the figure, the pressure limiting assemblies are provided with three groups. Each group of the pressure limiting assemblies comprises a plurality of stepped holes 19, and the plurality of stepped holes 19 are uniformly distributed around the output end 16 in an annular shape so as to ensure the stability and the balance of pressure transmission between the output end 16 and the contact boss 18.
Of course, the pressure limitation needs to be differentiated for different workpieces or under different stamping requirements, and for this reason, the pressure limitation of the present invention should also have adjustable characteristics. Therefore, the present invention may further include an air charging and discharging pipe 25 disposed at one side of the lower portion of the air pressure adjusting cylinder 17, and the air charging and discharging pipe is communicated with the inside of the air pressure adjusting cylinder 17. The pressure inside the air pressure adjusting cylinder 17 can be adjusted by the air charging and discharging pipe 25 to change the pressure condition inside the air pressure adjusting cylinder 17, and the stress condition of the coil spring 22 can be adjusted by applying pressure to the telescopic pin 20 through the guide disc 21 by using the air pressure. Therefore, the invention can also conveniently and rapidly adjust the pressure limiting limit, and the operation is more convenient. Of course, in this situation, an airtight fit between the side wall of the guide disc 21 and the stepped hole 19 should be made to prevent air leakage, and a specific manner may be to add a sealing ring, which is simple and will not be described in detail herein. In addition, in order to avoid the formation of an air pressure dead zone at the inner section of the stepped hole 19, the inner end of the stepped hole 19 should be communicated with the outside through an air hole so that an air pressure difference can be formed.
On the basis, in order to improve the stability of the output end 16 relative to the air pressure adjusting cylinder 17, a guide cylinder 26 matched with the output end 16 is arranged at the lower part of the air pressure adjusting cylinder 17, the lower end of the output end 16 is arranged in the guide cylinder 26 in a penetrating mode, and a rubber sealing ring 27 is arranged between the upper end of the guide cylinder 26 and the output end 16 so as to form airtight fit. Meanwhile, the side wall of the column hole extends upwards to form a guide section 28, the output end 16 is located in the guide section 28, and the guide section 28 can also play a role in improving stability. In order to ensure the airtight fit between the guide section 28 and the output end 16, a sealing groove which slopes upwards in an inclined manner towards the output end 16 is arranged on the inner side wall of the lower end of the guide section 28, the sealing groove is annular, and a matched rubber sealing wedge block 29 is arranged in the region between the sealing groove and the output end 16.
Thirdly, aiming at the problem that the replacement of the punching component of the traditional punching machine is complicated at present, as shown in fig. 2 and 3, the punching mechanism of the invention comprises a rotating column 30 arranged on the lower surface of the top plate of the frame 1, wherein the rotating column 30 is driven by a switching motor fixedly arranged on the top plate, the structure is simpler and is not shown in the figure. The lower end of the rotating column 30 is connected with the upper end of a supporting column 32 through a rotary joint 31, and the supporting column 32 is fixed on the bottom plate of the rack 1 to ensure the stability of the rotation of the rotating column 30. The lower part of the rotating column 30 is coaxially provided with a rotary disc 33, and a plurality of groups of punching components are uniformly arranged on the rotary disc 33 in an annular shape. The punching component can punch a workpiece under the driving of the output end 16 of the hydraulic cylinder 15.
When the rotary disc 33 is used and different punching components need to be switched, the switching motor is started to drive the rotating column 30 to rotate, and further drive the rotary disc 33 to rotate, so that the punching components needing to be used are switched to the position below the output end 16 of the hydraulic cylinder 15. Compared with the traditional mode of directly replacing the punch and the die, the invention saves a large amount of time for replacing the stamping assembly, is particularly suitable for stamping a complicated special-shaped workpiece and saves the process of repeated stamping.
The punching assembly comprises a punch 34 and a die 35 which are matched with each other, the punch 34 and the die 35 are arranged up and down, and the workpiece is positioned between the punch 34 and the die 35. During operation, each set of the punch 34 and the die 35 rotates to the upper and lower sides of the workpiece, and the output end 16 of the hydraulic cylinder 15 is used for driving the punch 34.
Of course, in order to further improve the flexibility of the processing, the punch 34 and the die 35 of the present invention may also be detachably connected, and for the punch 34, as shown in fig. 3, a vertical and step-shaped mounting hole 36 is provided on the upper surface of the rotary disk 33 of the present invention near the edge, and the mounting hole 36 is large in top and small in bottom and penetrates through the rotary disk 33. The plunger 34 is matched with the lower section of the mounting hole 36 and is arranged in the mounting hole 36 in a penetrating mode, and the lower section of the plunger 34 is guided. The outside of the plunger 34 is also sleeved with a mounting cap 37, the outer surface of the lower section of the mounting cap 37 is provided with external threads and is in threaded connection with the upper section of the mounting hole 36, and the mounting cap 37 forms a guide for the upper section of the plunger 34. The plunger 34 is located one section of the lower section of the mounting cap 37 and is also sleeved with a return spring 38, a return plate 39 is arranged on the plunger 34 above the return spring 38, and the return spring 38 is located between the return plate 39 and the stepped surface of the mounting hole 36. The upper end of the ram 34 is provided with an end disc 40.
When the replacement is needed, the installation cap 37 is removed, so that the plunger 34 can be removed from the installation hole 36, and the rapid replacement is realized. In order to facilitate the rotation of the mounting cap 37, an external hexagonal screw 41 is provided on the side wall of the upper section of the mounting cap 37. In addition, since the end plate 40 is a part directly contacting with the driving part, and is pressed more, and belongs to a wearing part, for this reason, in order to facilitate the replacement thereof, the upper end of the plunger 34 is provided with a connecting pin 50, and the upper end of the connecting pin 50 is provided with a screw thread and is matched with a nut 51. The end disc 40 is locked on the connecting pin 50 through a nut 51, a receiving hole is formed in the top surface of the end disc 40, and the nut 51 is located in the receiving hole to prevent interference on a contact surface.
The invention realizes the forming processing of the workpiece by utilizing the downward pressing of the punch 34 and the matching of the punch and the die 35. The die 34 may be directly fixed to the rotary disk 33 by a bracket 43, a link, or the like. However, this method has a relatively large stroke due to the movement of only the punch 34, and the stroke is shortened to increase the processing speed. The present invention can also adopt the mode that the punch 34 and the die 35 move oppositely, in this mode, as shown in fig. 2 and 3, a vertical sliding hole is arranged on the rotary disk 33 at one side of the mounting hole 36 close to the rotary column 30, and a matched sliding rod 42 is arranged in the sliding hole in a penetrating way. The lower end of the slide rod 42 is provided with a transverse bracket 43, and the die 35 is fixedly mounted on the bracket 43 and positioned opposite to the punch 34. The upper end of the sliding rod 42 is in driving connection with the ram 34 through a linkage assembly. When the punch 34 moves, the die 35 is driven to ascend through the linkage assembly, the sliding rod 42 and the supporting clamp 43 in sequence, so that bidirectional punching is realized, and the movement stroke of a single part is shortened.
The linkage assembly has more specific forms, such as: it may be an electrical push rod cooperating with a travel switch for detecting the action of the plunger 34 and transmitting a signal to the electrical push rod which drives the slide rod 42 in motion, but this is costly. To this end, the present invention preferably provides that the linkage assembly includes a first cross bar 44 fixedly disposed on the upper side of the rotary post 30 and extending in the radial direction of the rotary post 30, and a first pulley 45 is disposed at the bottom of the first cross bar 44. A second cross rod 46 extending along the radial direction of the punch 34 is arranged on the side wall of the upper section of the punch 34, and a second pulley 47 is arranged at the overhanging end of the second cross rod 46. The device further comprises a pull rope 48, wherein one end of the pull rope 48 is fixedly arranged at the overhanging end of the first cross rod 44, and the other end of the pull rope 48 sequentially rounds the second pulley 47 and the first pulley 45 and then is fixedly connected with the upper end of the sliding rod 42.
In addition, in order to improve the stability of the overall structure of the punching machine, triangular reinforcing plates 49 are disposed between the side wall of the rotating column 30 and the first cross bar 44, and between the side wall of the rotating column 30 and the rotary disk 33.
Compared with the traditional punch press, the punching precision, the pressure control and the convenience of punching component switching are greatly improved, and various functions can be independently applied to the existing punch press or can be combined and applied to the existing punch press.
Claims (10)
1. A multi-station co-pressing punch comprises a frame (1) and a punching device (2);
the method is characterized in that: the stamping device (2) comprises a stamping mechanism for stamping a workpiece and a hydraulic cylinder (15) for driving the stamping mechanism to work; the stamping mechanism is arranged between a top plate and a bottom plate of the rack (1), the hydraulic cylinder (15) is fixedly arranged on the top plate of the rack (1), and an output end (16) of the hydraulic cylinder (15) faces downwards and is in transmission connection with the stamping mechanism;
the stamping mechanism comprises a rotating column (30) arranged on the lower surface of a top plate of the rack (1), and the rotating column (30) is driven by a switching motor fixedly arranged on the top plate; the lower end of the rotating column (30) is connected with the upper end of a supporting column (32) through a rotary joint (31), and the supporting column (32) is fixed on a bottom plate of the rack (1); a rotary disc (33) is coaxially arranged at the lower part of the rotating column (30), and a plurality of groups of punching components are uniformly arranged on the rotary disc (33) in an annular shape; the stamping assembly can stamp a workpiece under the driving of an output end (16) of the hydraulic cylinder (15).
2. The multi-station co-pressing press according to claim 1, wherein: the punching assembly comprises a punch rod (34) and a die (35) which are matched with each other, the punch rod (34) and the die (35) are arranged up and down, and a workpiece is positioned between the punch rod (34) and the die (35);
a vertical stepped mounting hole (36) is formed in the upper surface of the rotary disc (33) close to the edge, and the mounting hole (36) is large in upper part and small in lower part and penetrates through the rotary disc (33); the punch rod (34) is matched with the lower section of the mounting hole (36) and penetrates through the mounting hole (36); an installation cap (37) is further sleeved outside the punch rod (34), external threads are arranged on the outer surface of the lower section of the installation cap (37), and the installation cap and the upper section of the installation hole (36) form threaded connection; a reset spring (38) is further sleeved outside one section of the punch rod (34) located in the lower section of the mounting cap (37), a reset disc (39) is arranged on the punch rod (34) above the reset spring (38), and the reset spring (38) is located between the reset disc (39) and the stepped surface of the mounting hole (36); an end disc (40) is arranged at the upper end of the punch rod (34).
3. The multi-station co-pressing press according to claim 2, wherein: and an outer hexagonal screwing part (41) is arranged on the side wall of the upper section of the mounting cap (37).
4. A multi-station co-pressing press according to claim 3, wherein: a vertical sliding hole is formed in the rotary disc (33) on one side, close to the rotating column (30), of the mounting hole (36), and a sliding rod (42) matched with the sliding hole is arranged in the sliding hole in a penetrating mode; the lower end of the sliding rod (42) is provided with a transverse bracket (43), and the die (35) is fixedly arranged on the bracket (43) and is opposite to the punch rod (34); the upper end of the sliding rod (42) is in transmission connection with the punch rod (34) through a linkage assembly.
5. The multi-station co-pressing press according to claim 4, wherein: the linkage assembly comprises a first cross rod (44) which is fixedly arranged on the side surface of the upper section of the rotating column (30) and extends along the radial direction of the rotating column (30), and a first pulley (45) is arranged at the bottom of the first cross rod (44); a second cross rod (46) extending along the radial direction of the punch (34) is arranged on the side wall of the upper section of the punch (34), and a second pulley (47) is arranged at the overhanging end of the second cross rod (46); the device is characterized by further comprising a pull rope (48), one end of the pull rope (48) is fixedly arranged at the overhanging end of the first cross rod (44), and the other end of the pull rope (48) sequentially rounds the second pulley (47) and the first pulley (45) and then is fixedly connected with the upper end of the sliding rod (42).
6. The multi-station co-pressing press according to claim 5, wherein: triangular reinforcing plates (49) are arranged between the side wall of the rotating column (30) and the first cross rod (44) and between the side wall of the rotating column (30) and the rotary disc (33).
7. The multi-station co-pressing press according to claim 6, wherein: the upper end of the punch rod (34) is provided with a connecting pin (50), the upper end of the connecting pin (50) is provided with threads and is matched with a nut (51); the end disc (40) is locked on the connecting pin (50) through a nut (51), a containing hole is formed in the top surface of the end disc (40), and the nut (51) is located in the containing hole.
8. The multi-station co-pressing press according to claim 7, wherein: a plurality of groups of conveying clamping rollers (3) for conveying belt-shaped workpieces are uniformly arranged on the rack (1) along the length direction of the rack (1); a stamping device (2) and two position adjusting mechanisms (4) are arranged between two adjacent groups of conveying clamping rollers (3), and the position adjusting mechanisms (4) are positioned on two sides of the stamping device (2);
the position adjusting mechanism (4) comprises a sliding groove (5) which is arranged on the rack (1) and extends along the width direction of a workpiece, a clamp mounting plate (6) is arranged in the sliding groove (5), the clamp mounting plate (6) is U-shaped, and the bottom of the clamp mounting plate (6) is clamped in the sliding groove (5) and forms sliding fit with the sliding groove (5); a clamping component for clamping a workpiece is arranged between the left side plate and the right side plate of the clamp mounting plate (6); and a driving assembly for driving the mounting plate to reciprocate along the length direction of the sliding groove (5) is further arranged in the sliding groove (5).
9. The multi-station co-pressing press according to claim 8, wherein: the driving assembly comprises a lead screw (7) which is arranged in the sliding groove (5) and extends along the length direction of the sliding groove (5), and one end of the lead screw (7) is in transmission connection with a stepping motor (8); the bottom of anchor clamps mounting panel (6) is fixed and is provided with adapter sleeve (9), adapter sleeve (9) cover is established outside lead screw (7) and constitutes screw-thread fit with lead screw (7).
10. The multi-station co-pressing press according to claim 9, wherein: the clamping assembly comprises a guide groove (10) arranged on the upper surface of the bottom of the clamp mounting plate (6), the guide groove (10) extends along the length direction of the clamp mounting plate (6), a sliding seat (11) is further arranged between the left side edge and the right side edge in the clamp mounting plate (6), a guide block is arranged at the bottom of the sliding seat (11), and the guide block is arranged in the guide groove (10) and is in sliding fit with the guide groove (10); the inner wall of the left side of the clamp mounting plate (6) is also provided with a transverse electric push rod (12), and the telescopic end of the electric push rod (12) is fixedly connected with the left side face of the sliding seat (11); vertical rotating rollers (13) are arranged on the right side face of the sliding seat (11) and the right side edge of the clamp mounting plate (6), and a workpiece is clamped between the rotating rollers (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010740508.0A CN111760969A (en) | 2020-07-28 | 2020-07-28 | Multi-station co-pressing punch press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010740508.0A CN111760969A (en) | 2020-07-28 | 2020-07-28 | Multi-station co-pressing punch press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111760969A true CN111760969A (en) | 2020-10-13 |
Family
ID=72727666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010740508.0A Withdrawn CN111760969A (en) | 2020-07-28 | 2020-07-28 | Multi-station co-pressing punch press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111760969A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116550844A (en) * | 2023-07-11 | 2023-08-08 | 常州市武进龙犇金属压铸有限公司 | Stamping device and stamping method for machining motor end cover |
| CN116652015A (en) * | 2023-07-12 | 2023-08-29 | 山东卓益数控设备有限公司 | Multichannel blanking machine for punching metal screen plate |
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| JPH0228325U (en) * | 1988-08-10 | 1990-02-23 | ||
| CN102862054A (en) * | 2012-09-27 | 2013-01-09 | 浙江大学 | Full-automatic slotting bending machine |
| CN103978094A (en) * | 2014-05-29 | 2014-08-13 | 济南明文达数控设备有限公司 | Numerically-controlled busbar punching machine |
| CN206614842U (en) * | 2017-04-07 | 2017-11-07 | 湖北中港金属制造有限公司 | A kind of tower punching with counting device |
| CN108421877A (en) * | 2018-06-04 | 2018-08-21 | 惠州市诚业家具有限公司 | A kind of laminate die cutting die and its hole punched device |
| CN109848288A (en) * | 2019-04-22 | 2019-06-07 | 俞杏正 | A kind of continuous perforating press of bar steel plate |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0228325U (en) * | 1988-08-10 | 1990-02-23 | ||
| CN102862054A (en) * | 2012-09-27 | 2013-01-09 | 浙江大学 | Full-automatic slotting bending machine |
| CN103978094A (en) * | 2014-05-29 | 2014-08-13 | 济南明文达数控设备有限公司 | Numerically-controlled busbar punching machine |
| CN206614842U (en) * | 2017-04-07 | 2017-11-07 | 湖北中港金属制造有限公司 | A kind of tower punching with counting device |
| CN108421877A (en) * | 2018-06-04 | 2018-08-21 | 惠州市诚业家具有限公司 | A kind of laminate die cutting die and its hole punched device |
| CN109848288A (en) * | 2019-04-22 | 2019-06-07 | 俞杏正 | A kind of continuous perforating press of bar steel plate |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116550844A (en) * | 2023-07-11 | 2023-08-08 | 常州市武进龙犇金属压铸有限公司 | Stamping device and stamping method for machining motor end cover |
| CN116550844B (en) * | 2023-07-11 | 2023-09-12 | 常州市武进龙犇金属压铸有限公司 | Stamping device and stamping method for machining motor end cover |
| CN116652015A (en) * | 2023-07-12 | 2023-08-29 | 山东卓益数控设备有限公司 | Multichannel blanking machine for punching metal screen plate |
| CN116652015B (en) * | 2023-07-12 | 2023-10-10 | 山东卓益数控设备有限公司 | Multichannel blanking machine for punching metal screen plate |
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Application publication date: 20201013 |
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