CN218134361U - Outer connecting plate punching device - Google Patents

Abstract

The utility model discloses an outer joint plate punching device, include: the punching die comprises a machine frame, wherein a lower die base, an upper die base, a lower pressing plate, a first guide post, a punching needle base, a second guide post, an upper pressing plate, an elastic part, a punching cylinder and a push-pull cylinder are arranged on the machine frame, the punching cylinder is fixed with the punching needle base, the lower pressing plate and the upper pressing plate are fixed through a connecting rod, two long punching needles and short punching needles are arranged on the punching needle base, three avoiding holes are formed in the lower pressing plate, three upper punching holes are formed in the upper die base, slots are formed in the upper die base, the three upper punching holes are respectively communicated with the slots through upper blanking grooves, a positioning groove is formed in the upper die base, two lower punching holes are formed in the lower die base, the two lower punching holes are respectively communicated with the lower blanking grooves, a pushing rod is arranged behind the upper die base, and three upper pushing rods, two lower pushing rods and a pushing rod are arranged on the pushing frame. The punching device can punch holes on the upper plate and the lower plate of the outer connecting plate respectively, and the outer connecting plate does not need to be turned over during punching, so that the production efficiency and the size precision of the outer connecting plate can be greatly improved.

Description

Punching device for external connecting plate

Technical Field

The utility model relates to a processing equipment field punches a hole, concretely relates to outer connecting plate punching device.

Background

The outer connecting plate is a part for manufacturing a chain, and the structure of the outer connecting plate comprises: the upper plate, the middle narrow plate and the lower plate are parallel, the middle narrow plate is located between the upper plate and the lower plate and is connected and fixed with the upper plate and the lower plate respectively, two first through holes and one second through hole need to be punched in the upper plate, the two first through holes are located on the left side and the right side of the second through hole respectively, the two first through holes need to be punched in the lower plate, and the two first through holes in the lower plate and the two first through holes in the upper plate are aligned up and down in a one-to-one mode respectively. It is now common to first put the outer connecting plates into one punching die to punch the upper plates, then turn the outer connecting plates over and put them into another punching die to punch the lower plates. The outer connecting plate obtained in this way has the defect that the coaxiality of the first through hole in the upper plate and the first through hole in the lower plate is poor, and the production efficiency can be greatly reduced by punching the outer connecting plate twice and turning over the outer connecting plate when the outer connecting plate is punched.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the outer connecting plate punching device can improve the production efficiency of the outer connecting plate and improve the size precision of the outer connecting plate.

In order to solve the above problem, the utility model discloses the technical scheme who adopts does: outer joint plate punching device includes: the frame, its characterized in that: the machine frame is provided with a lower die base, an upper die base, a lower pressing plate, a first guide post, a punch pin base, a second guide post, an upper pressing plate, an elastic part, a punch cylinder and a push-pull cylinder, the lower die base is fixed on the machine frame, the upper die base is stacked on the lower die base, the lower pressing plate is positioned above the upper die base, the first guide post is vertically arranged and penetrates through the lower pressing plate to vertically guide the lower pressing plate, the punch pin base is positioned above the lower pressing plate, the second guide post is vertically arranged and penetrates through the punch pin base to vertically guide the punch pin base, the upper pressing plate is positioned above the punch pin base, the punch cylinder is positioned above the upper pressing plate, a piston rod of the punch cylinder extends downwards to penetrate through the upper pressing plate and then is fixed with the punch pin base, so that the punch pin base can move up and down under the driving of the punch cylinder, the elastic part is positioned between the punch cylinder and the upper pressing plate, the lower pressing plate and the upper pressing plate are connected through a plurality of connecting rods penetrating through the punch pin base, the upper end and the lower end of the elastic piece are respectively abutted against the frame and the upper press plate, so that the elastic piece can press the upper press plate and the lower press plate downwards until the lower press plate is abutted against the upper die base, when the punch needle base moves upwards under the action of the punch cylinder, the punch needle base can overcome the elasticity of the elastic piece and push the upper press plate upwards, so that the lower press plate can leave the upper die base, so that the upper plate of the external connecting plate can be inserted between the lower press plate and the upper die base, two long punch needles for punching a first through hole and one short punch needle for punching a second through hole are arranged on the lower surface of the punch needle base, the two long punch needles are respectively positioned on the left side and the right side of the short punch needles, three avoiding holes for avoiding the three punch needles are arranged on the lower press plate, three upper punch holes respectively corresponding to the three punch needles one by one, a slot for the lower plate of the external connecting plate to be inserted into and penetrating through the upper die base is arranged on the lower surface of the upper die base, the three upper punching holes are respectively communicated with the slot through an upper blanking groove which penetrates through the upper die base from front to back, a positioning groove for clamping a middle narrow plate of an outer connecting plate to limit the outer connecting plate from left to right is arranged on the front surface of the upper die base, the upper end and the lower end of the positioning groove penetrate through the upper die base, two lower punching holes which correspond to the two long punching pins one by one are arranged on the lower die base, the lower ends of the two lower punching holes are respectively communicated with a lower blanking groove which penetrates through the lower die base from front to back, the two lower punching holes are respectively aligned with the two upper punching holes on the left side and the right side one by one, the short punching pins can not punch the upper plate of the outer connecting plate and push the waste into the corresponding upper blanking groove when moving downwards, the short punching pins can punch the upper plate of the outer connecting plate and push the waste into the corresponding upper blanking groove when the two long punching pins continue to move downwards and push the lower plate of the outer connecting plate into the corresponding lower blanking groove, a push rod can insert the three push rods into the upper blanking groove and the three push rods can insert into the upper blanking groove and the three push rods when the upper blanking groove and the three push rods can move forwards, and the upper blanking groove and the three push rods can insert into the upper blanking groove respectively, and the lower blanking groove.

Further, the outer connecting plate punching device of the preceding, wherein: the elastic piece is elastic sponge.

Further, aforementioned outer connecting plate punching device, wherein: the frame is also provided with a material receiving box which is positioned in front of the lower die seat and used for receiving the external connecting piece and the waste material.

Further, the outer connecting plate punching device of the preceding, wherein: the three travel switches are arranged on the rack and are respectively a first travel switch, a second travel switch and a third travel switch from top to bottom, a switch frame for triggering the travel switches is arranged on the punch needle seat, the switch frame can trigger the first travel switch, the second travel switch and the third travel switch respectively in the process that the punch needle seat moves up and down, and when the punch needle seat rises to the position where an upper plate of the external connecting plate can be inserted between the lower pressing plate and the upper die seat, the switch frame can trigger the first travel switch; when the two long punching needles move downwards to punch the upper plate of the outer connecting plate and push the waste into the corresponding upper blanking groove, the switch frame triggers the second travel switch; when the two long punching needles continue to move downwards to punch the lower plate of the outer connecting plate and push the waste materials into the corresponding falling material groove, the switch frame triggers the third travel switch.

Further, the outer connecting plate punching device of the preceding, wherein: the stamping cylinder is an oil cylinder, and the push-pull cylinder is an air cylinder.

The utility model has the advantages that: the outer connecting plate punching device can punch holes on the upper plate and the lower plate of the outer connecting plate respectively, and the outer connecting plate does not need to be turned over during punching, so that the production efficiency and the size precision of the outer connecting plate can be greatly improved.

Drawings

Fig. 1 is a schematic structural view of the outer connecting plate punching device of the present invention.

Fig. 2 is a right-view structural diagram of fig. 1.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings.

As shown in fig. 1 and 2, the outer connecting plate punching apparatus includes: a frame 12, a lower die holder 1, an upper die holder 2, a lower press plate 3, a first guide post 4, a punch pin holder 5, a second guide post 6, an upper press plate 7, an elastic piece 8, a punch cylinder 9 and a push-pull cylinder 10 are arranged on the frame 12, the lower die holder 1 is fixed on the frame 12, the upper die holder 2 is stacked on the lower die holder 1, the lower press plate 3 is positioned above the upper die holder 2, the first guide post 4 is vertically arranged and penetrates through the lower press plate 3 to vertically guide the lower press plate 3, the punch pin holder 5 is positioned above the lower press plate 3, the second guide post 6 is vertically arranged and penetrates through the punch pin holder 5 to vertically guide the punch pin holder 5, the upper press plate 7 is positioned above the punch pin holder 5, the punch cylinder 9 is positioned above the upper press plate 7, a piston rod of the punch cylinder 9 extends downwards to penetrate through the upper press plate 7 and then is fixed with the punch pin holder 5, so that the punch pin holder 5 can move up and down under the drive of the punch cylinder 9, the elastic piece 8 is positioned between the stamping cylinder 9 and the upper press plate 7, the lower press plate 3 and the upper press plate 7 are connected and fixed through four connecting rods 13 penetrating through the punch needle seat 5, the upper end and the lower end of the elastic piece 8 are respectively abutted against the frame 12 and the upper press plate 7, so that the elastic piece 8 can press the upper press plate 7 and the lower press plate 3 downwards until the lower press plate 3 is abutted against the upper die base 2, when the punch needle seat 5 moves upwards under the action of the stamping cylinder 9, the punch needle seat 5 can overcome the elasticity of the elastic piece 8 to push the upper press plate 7 upwards, so that the lower press plate 3 can leave the upper die base 2, so that the upper plate of the external connecting plate 14 can be inserted between the lower press plate 3 and the upper die base 2, two long punch needles 15 for punching a first through hole and one short punch needle 16 for punching a second through hole are arranged on the lower surface of the punch needle seat 5, the two long punch needles 15 are respectively positioned at the left side and the right side of the short punch needle 16, three avoidance holes for avoiding the three punching needles are arranged on the lower pressing plate 3, three upper punching holes 17 which are respectively in one-to-one correspondence with the three punching needles are arranged on the upper die holder 2, a slot 18 which is used for inserting the lower plate of the external connecting plate 14 and penetrates through the upper die holder 2 in the front and back direction is arranged on the lower surface of the upper die holder 2, the three upper punching holes 17 are respectively communicated with the slot 18 through an upper blanking groove 19 which penetrates through the upper die holder 2 in the front and back direction, a positioning groove 30 which is used for clamping the middle narrow plate of the external connecting plate 14 and limiting the external connecting plate 14 in the left and right direction is arranged on the front surface of the upper die holder 2, the upper end and the lower end of the positioning groove 30 penetrate through the upper die holder 2, two lower punching holes 20 which are respectively in one-to-one correspondence with the two long punching needles 15 are arranged on the lower die holder 1, and the lower ends of the two lower punching holes 20 are respectively communicated with a lower blanking groove 21 which penetrates through the lower die holder 1 in the front and back direction, the two lower punching holes 20 are respectively aligned with the two upper punching holes 17 on the left side and the right side one by one up and down, when the two long punching pins 15 move downwards to punch the upper plate of the outer connecting plate 14 and push the waste into the corresponding upper blanking slots 19, the short punching pins 16 do not punch the upper plate of the outer connecting plate 14, when the two long punching pins 15 continue to move downwards to punch the lower plate of the outer connecting plate 14 and push the waste into the corresponding lower blanking slots 21, the short punching pins 16 punch the upper plate of the outer connecting plate 14 and push the waste into the corresponding upper blanking slots 19, a pushing cylinder 11 is arranged behind the upper die base 2, the pushing cylinder 10 can drive the pushing frame 11 to move back and forth, three upper pushing rods 22, two lower pushing rods 24 and one pushing rod 23 are arranged on the pushing frame 11, the length of the pushing rod 23 is smaller than that of the upper pushing rods 22 and the lower pushing rods 24, when the pushing frame 11 moves forward, three upper material pushing rods 22 can be respectively inserted forwards into three upper blanking chutes 19 to push waste materials, two lower material pushing rods 24 can be respectively inserted forwards into two lower blanking chutes 21 to push waste materials, and a pushing rod 23 can be inserted forwards into a space between the lower pressing plate 3 and the upper die base 2 to push an outer connecting piece.

In this embodiment, the elastic member 8 is an elastic sponge. A material receiving box 25 is also arranged on the frame 12, and the material receiving box 25 is positioned in front of the lower die holder 1 and is used for receiving external connecting pieces and waste materials.

Three travel switches are arranged on the rack 12, namely a first travel switch 26, a second travel switch 27 and a third travel switch 28 from top to bottom in sequence, the travel switches are all electrically connected with a controller of the outer connecting plate punching device, a switch frame 29 for triggering the travel switches is arranged on the punch needle seat 5, the switch frame 29 can trigger the first travel switch 26, the second travel switch 27 and the third travel switch 28 respectively in the process that the punch needle seat 5 moves up and down, and when the punch needle seat 5 rises to the position that the upper plate of the outer connecting plate 14 can be inserted between the lower pressing plate 3 and the upper die seat 2, the switch frame 29 can trigger the first travel switch 26; when the two long punching pins 15 move downwards to punch the upper plate of the outer connecting plate 14 and push the waste into the corresponding upper blanking groove 19, the switch frame 29 triggers the second travel switch 27; the switch frame 29 triggers the third travel switch 28 when the two long punches 15 continue to move downward to punch the lower plate of the outer link plate 14 and push the scrap down into the corresponding drop chute 21.

The stamping cylinder 9 is an oil cylinder, and the push-pull cylinder 10 is an air cylinder.

When the punching machine works, the external connecting piece 14 is inserted, the upper plate of the external connecting piece 14 is inserted between the lower pressing plate 3 and the upper die holder 2, the lower plate is inserted into the slot 18, the middle narrow plate is clamped into the positioning groove 30, then the punching cylinder 9 is started through the controller, the lower punching pin seat 5 is driven by the punching cylinder 9 to drive the three punching pins to punch downwards, the lower pressing plate 3 is always pressed on the external connecting piece 14 under the action of the elastic piece during punching, when the two long punching pins 15 move downwards to punch the upper plate of the external connecting plate 14 and push waste materials into the corresponding upper blanking grooves 19, the switch frame 29 triggers the second travel switch 27, at the moment, the controller controls the punching pin seat 5 to stop moving downwards, the short punching pins 16 cannot punch the upper plate of the external connecting plate 14 because of being short, then the controller controls the push-pull cylinder 10 to drive the material pushing frame 11 to move forwards, the waste materials punched from the two upper blanking slots 19 at the left side and the right side can be pushed out of the upper die base 2 by the two upper material pushing rods 22 to fall into the material receiving box 25, then the material pushing frame 11 is driven by the pushing cylinder 10 to move backwards and reset, then the punching needle base 5 is driven by the punching cylinder 9 to drive the three punching needles to continuously punch holes downwards, when the two long punching needles 15 continuously move downwards to punch holes on the lower plate of the outer connecting plate 14 and push the waste materials into the corresponding blanking slots 21, and the short punching needle 16 punches holes on the upper plate of the outer connecting plate 14 and pushes the waste materials into the corresponding upper blanking slots 19, the switch frame 29 can trigger the third travel switch 28, at the moment, the controller can control the punching needle base 5 to stop moving downwards, because the two long punching needles 15 continuously punch holes on the lower plate downwards after punching the two through holes on the upper plate, so that the first through holes on the upper plate and the lower plate can have good coaxiality, then the controller can control the punching needle base 5 to move upwards and reset, until the switch frame 29 triggers the first travel switch 26, the controller controls the push-pull cylinder 10 to drive the material pushing frame 11 to move forward, so that the external connecting plate 14 can be pushed out by the pushing rod 23 to fall into the material receiving box 25, the wastes flushed from the two material falling grooves 21 can be pushed out by the two material pushing rods 24 to fall into the material receiving box 25, the wastes in the middle material falling groove 19 can be pushed out by the middle one material pushing rod 22 to fall into the material receiving box 25, and then the material pushing frame 11 is driven by the push-pull cylinder 10 to move backward to reset.

Claims (5)

1. Outer connecting plate punching device includes: the frame, its characterized in that: the machine frame is provided with a lower die base, an upper die base, a lower pressing plate, a first guide post, a punch pin base, a second guide post, an upper pressing plate, an elastic part, a punch cylinder and a push-pull cylinder, the lower die base is fixed on the machine frame, the upper die base is stacked on the lower die base, the lower pressing plate is positioned above the upper die base, the first guide post is vertically arranged and penetrates through the lower pressing plate to vertically guide the lower pressing plate, the punch pin base is positioned above the lower pressing plate, the second guide post is vertically arranged and penetrates through the punch pin base to vertically guide the punch pin base, the upper pressing plate is positioned above the punch pin base, the punch cylinder is positioned above the upper pressing plate, a piston rod of the punch cylinder extends downwards to penetrate through the upper pressing plate and then is fixed with the punch pin base, so that the punch pin base can move up and down under the driving of the punch cylinder, the elastic part is positioned between the punch cylinder and the upper pressing plate, the lower pressing plate and the upper pressing plate are connected through a plurality of connecting rods penetrating through the punch pin base, the upper end and the lower end of the elastic piece are respectively abutted against the frame and the upper press plate, so that the elastic piece can press the upper press plate and the lower press plate downwards until the lower press plate is abutted against the upper die base, when the punch needle base moves upwards under the action of the punch cylinder, the punch needle base can overcome the elasticity of the elastic piece and push the upper press plate upwards, so that the lower press plate can leave the upper die base, so that the upper plate of the external connecting plate can be inserted between the lower press plate and the upper die base, two long punch needles for punching a first through hole and one short punch needle for punching a second through hole are arranged on the lower surface of the punch needle base, the two long punch needles are respectively positioned on the left side and the right side of the short punch needles, three avoiding holes for avoiding the three punch needles are arranged on the lower press plate, three upper punch holes respectively corresponding to the three punch needles one by one, a slot for the lower plate of the external connecting plate to be inserted into and penetrating through the upper die base is arranged on the lower surface of the upper die base, the three upper punching holes are respectively communicated with the slot through an upper blanking groove penetrating through the upper die base from front to back, a positioning groove for clamping a middle narrow plate of an outer connecting plate and limiting the outer connecting plate from left to right is arranged on the front surface of the upper die base, the upper end and the lower end of the positioning groove penetrate through the upper die base, two lower punching holes respectively corresponding to the two long punching pins are arranged on the lower die base, the lower ends of the two lower punching holes are respectively communicated with a lower blanking groove penetrating through the lower die base from front to back, the two lower punching holes are respectively aligned with the two upper punching holes on the left side and the right side one by one up and down, when the two long punching pins move downwards to punch the upper plate of the outer connecting plate and push down the waste into the corresponding upper blanking grooves, the short punching pins can not punch the upper plate of the outer connecting plate and push down the waste into the corresponding upper blanking grooves, a waste pushing cylinder is arranged behind the upper die base and can drive the waste to push down the upper blanking frame, and the three pushing rods can be inserted into the upper blanking groove and the upper and the lower pushing rod can be inserted into the three pushing rods.

2. The outer web punching apparatus of claim 1, wherein: the elastic piece is elastic sponge.

3. The outer connecting plate punching apparatus according to claim 1 or 2, wherein: the frame is also provided with a material receiving box which is positioned in front of the lower die seat and used for receiving the external connecting piece and the waste material.

4. The outer connecting plate punching apparatus according to claim 1 or 2, wherein: the three travel switches are arranged on the rack and are respectively a first travel switch, a second travel switch and a third travel switch from top to bottom, a switch frame for triggering the travel switches is arranged on the punch needle seat, the switch frame can trigger the first travel switch, the second travel switch and the third travel switch respectively in the process that the punch needle seat moves up and down, and when the punch needle seat rises to the position where an upper plate of the external connecting plate can be inserted between the lower pressing plate and the upper die seat, the switch frame can trigger the first travel switch; when the two long punching needles move downwards to punch the upper plate of the outer connecting plate and push the waste into the corresponding upper blanking groove, the switch frame triggers the second travel switch; when the two long punching needles continue to move downwards to punch the lower plate of the outer connecting plate and push the waste materials into the corresponding falling material groove, the switch frame triggers the third travel switch.

5. The outer connecting plate punching apparatus according to claim 1 or 2, wherein: the stamping cylinder is an oil cylinder, and the push-pull cylinder is an air cylinder.

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