CN109604669B - Pin shaft punching equipment - Google Patents

Pin shaft punching equipment Download PDF

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Publication number
CN109604669B
CN109604669B CN201811542734.7A CN201811542734A CN109604669B CN 109604669 B CN109604669 B CN 109604669B CN 201811542734 A CN201811542734 A CN 201811542734A CN 109604669 B CN109604669 B CN 109604669B
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China
Prior art keywords
drill bit
punching
pin shaft
puncher
sliding rod
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CN201811542734.7A
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CN109604669A (en
Inventor
黄海潮
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Wenzhou Xiangchao Auto Parts Co ltd
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Wenzhou Xiangchao Auto Parts Co ltd
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Priority to CN201811542734.7A priority Critical patent/CN109604669B/en
Publication of CN109604669A publication Critical patent/CN109604669A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B39/00General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
    • B23B39/16Drilling machines with a plurality of working-spindles; Drilling automatons
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B49/00Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
    • B23B49/001Devices for detecting or indicating failure of drills

Abstract

The invention discloses pin shaft punching equipment, which relates to the technical field of mechanical equipment, and adopts the technical scheme that the pin shaft punching equipment comprises a base and a power supply box for supplying power to the equipment, wherein the base is provided with a clamping device for clamping a pin shaft and rotating the pin shaft, a first punching machine moving along the vertical direction, a second punching machine moving along the horizontal direction, a detection device for detecting whether a drill bit of the first punching machine and a drill bit of the second punching machine break and outputting a detection signal, and an execution device which is coupled with the detection device and responds to the detection signal to control whether the power supply box supplies power; when the detection device detects that the drill bit of the first drilling machine or the drill bit of the second drilling machine is broken, the power supply box stops supplying power.

Description

Pin shaft punching equipment
Technical Field
The invention relates to the technical field of mechanical equipment, in particular to pin shaft punching equipment.
Background
The pin shaft is generally used for connecting some parts, and as shown in fig. 1, the pin shaft comprises a pin shaft body 1, wherein a first through hole 2 is formed in the pin shaft body 1, and arc-shaped guide holes 3 are formed at openings at two sides of the first through hole 2. In the prior art, a pin shaft punching device for realizing punching is shown in fig. 2 and comprises a base 4, wherein a clamping device 5 for clamping a pin shaft and realizing rotation of the pin shaft, a first punching machine 6 moving in the vertical direction and a second punching machine 7 moving in the horizontal direction are arranged on the base 4, when the pin shaft punching device is used for production and machining, the pin shaft clamped on the clamping device 5 is firstly punched through the first punching machine 6, then the clamping device 5 is rotated to enable the pin shaft to rotate for 90 degrees, one side of the pin shaft is punched for the second time through the second punching machine 7, and then the other side of the pin shaft is punched again through rotation of 180 degrees, so that the pin shaft is machined into the pin shaft shown in fig. 1.
But when the round pin axle was punched and is set up and add man-hour, the drill bit of puncher took place the rupture easily, and whole equipment after the rupture still can continuous operation, leads to the production of a large amount of defective products, causes the waste.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides pin shaft punching equipment which has the effect of automatically stopping working after a drill bit is broken, so that the qualification rate of products is improved, and the waste is reduced.
In order to achieve the purpose, the invention provides the following technical scheme: a pin shaft punching device comprises a base and a power box for supplying power to the device, wherein a clamping device for clamping a pin shaft and rotating the pin shaft, a first punching machine moving along the vertical direction, a second punching machine moving along the horizontal direction, a detection device for detecting whether a drill bit of the first punching machine and a drill bit of the second punching machine break and outputting a detection signal, and an execution device which is coupled with the detection device and responds to the detection signal to control whether the power box supplies power or not are arranged on the base; when the detection device detects that the drill bit of the first puncher or the drill bit of the second puncher breaks, the power supply box stops supplying power.
Through adopting above-mentioned technical scheme, in the course of the work, first puncher punches to the round pin axle of centre gripping on clamping device earlier, then clamping device drives the round pin axle and rotates, punch the processing once more to the round pin axle through the second puncher, thereby punch the pass of different positions and different size shapes, improve work efficiency, at this in-process, the breakage takes place easily for drill bit on the first puncher and the drill bit on the second puncher, when the drill bit on the first puncher or the drill bit on the second puncher takes place the breakage, the power supply box stops the power supply, equipment stop work, avoid the continuous production of defective products, the product percent of pass has been improved, reduce the waste of material. And this kind of structure that all detects two drill bits is applicable to the drill bit of different specifications, still can use after equipment change drill bit, and application scope is wider.
The invention is further configured to: the detection device comprises a first device for detecting whether the drill bit of the first puncher is broken and a second device for detecting whether the drill bit of the second puncher is broken; the first device comprises a static contact piece fixed on the machine base, a moving frame arranged on the second punching machine in a sliding way and a movable contact piece fixed on the moving frame; when the second puncher approaches to the pin shaft and punching is realized, one end of the movable frame is abutted against the drill bit of the first puncher and prevents the movable frame from moving, and the static contact piece is not contacted with the movable contact piece; when the drill bit of the first drilling machine is broken, the second drilling machine moves and drives the contact piece to be in contact with the movable contact piece and the static contact piece, and the power supply box stops supplying power.
Through adopting above-mentioned technical scheme, under the normal condition, first puncher resumes the normal position after the completion of punching, and the second puncher is at the in-process of punching, and first puncher is in the normal position, and the drill bit of first puncher at this moment does not rotate, and the one end of removing the frame can with the drill bit butt on the first puncher to make and remove the frame slip, static contact and movable contact contactless, equipment normal work. When the drill bit on the first puncher breaks, the second puncher can not abut against the drill bit on the first puncher at one end of the movable frame in the punching process, the static contact piece is in contact with the movable contact piece, the power supply box stops supplying power, and the equipment stops working.
The invention is further configured to: the second punching machine is provided with a positioning block, a first spring used for driving the moving frame to move towards the drill bit direction of the first punching machine is arranged between the positioning block and the moving frame, one end of the first spring is fixed with the moving frame, and the other end of the first spring is fixed with the positioning block.
Through adopting above-mentioned technical scheme, under the normal condition, after the second puncher carries out reworking to the round pin axle, when the round pin axle was kept away from to the second puncher, removed frame and round pin axle separation, first spring makes the automatic removal frame reset, is convenient for measure next time.
The invention is further configured to: a fixed block is fixedly arranged on the second perforating machine, a sliding groove is formed in the fixed block, and one end of the movable frame slides in the sliding groove.
Through adopting above-mentioned technical scheme, the sliding tray has played the effect that the restriction removed the frame for the removal frame is more stable when removing.
The invention is further configured to: one end of the movable frame, which faces the pin shaft, is provided with a first arc-shaped block which is used for being abutted against a drill bit of the first drilling machine.
Through adopting above-mentioned technical scheme, the area of contact with the drill bit has been increased in the setting of first arc piece, and is more stable when both butts.
The invention is further configured to: and the fixed block is provided with a through groove for the first spring to pass through.
Through adopting above-mentioned technical scheme, play the effect of stabilizing first spring.
The invention is further configured to: a lower groove with an upward opening is formed in the machine base; the second device comprises a first sliding rod arranged in the lower groove in a sliding manner, a second arc-shaped block arranged at the upper end of the first sliding rod, a movable contact rod fixedly connected to the first sliding rod and positioned below the static contact piece, and a driving assembly driving the first sliding rod to move upwards; when the first sliding rod moves upwards under the action of the driving assembly, the second arc-shaped block is abutted against a drill bit of the second punching machine, the movable contact rod is not contacted with the static contact piece, and the power box supplies power normally; when the drill bit is broken, the first sliding rod moves upwards under the action of the driving assembly, the movable contact rod is contacted with the static contact, and the power supply box stops supplying power.
Through adopting above-mentioned technical scheme, drive assembly makes first slide bar rebound, if the drill bit of second puncher is normal when, the second arc piece rises along with first slide bar and with the drill bit butt of second puncher to the first slide bar of restriction continues to rise, and then stops the rising of movable contact lever, movable contact lever and static contact contactless, the power supply box normal power supply. If the drill bit of the second perforating machine is broken, the second arc-shaped block rises along with the first sliding rod, the movable contact rod is contacted with the static contact piece, and the power supply box stops supplying power.
The invention is further configured to: the second punching machine is provided with a side groove with an opening facing the first sliding rod, and the base is provided with a through hole communicated with the lower groove; the driving assembly comprises a second sliding rod arranged in the side groove in a sliding manner, a second spring positioned in the side groove and driving the second sliding rod to move towards the side groove, and a pull rope with one end fixedly connected with the second sliding rod; the other end of the pull rope is connected and fixed with the lower part of the first sliding rod after passing through the through hole; when the second punching machine moves towards the direction far away from the clamping device, the pull rope pulls the first sliding rod to move upwards until the second arc-shaped block is abutted against the drill bit of the second punching machine.
Through adopting above-mentioned technical scheme, after the second puncher processed the round pin axle, the second puncher was kept away from first slide bar and is removed, and the first slide bar rebound of stay cord pulling, if the drill bit butt of second arc piece and second puncher, the second puncher after this continues to keep away from first slide bar, and the second slide bar is motionless for first slide bar, and the second slide bar moves for the side channel, and the deformation takes place for the second spring. If the drill bit of the second perforating machine is broken after the pin shaft is machined, the first sliding rod continuously moves upwards in the whole process that the second perforating machine is far away from the first sliding rod, the movable contact rod is in contact with the static contact piece, and the power box stops supplying power. The setting can detect the pin shaft once by the drill bit of the second perforating machine in the resetting process after the pin shaft is machined by the second perforating machine every time, and if the drill bit of the second perforating machine is broken, the operation of the equipment can be stopped in time, and the damage can be stopped in time.
In summary, the drill bit of the first drilling machine is detected by the first device, the drill bit of the second drilling machine is detected by the second device, the pin shaft detection device is suitable for production of different pin shafts, the application range is wider, meanwhile, the drill bits are detected by the first device and the second device through movement required by the second drilling machine, the occupied space is small, the energy utilization rate is high, and energy is saved.
Drawings
FIG. 1 is a schematic structural view of a pin shaft to be machined according to the present invention;
FIG. 2 is a schematic view of a part of a pin hole punching apparatus in the prior art;
FIG. 3 is a schematic view of the overall structure of the present invention;
FIG. 4 is a circuit diagram of the present invention;
FIG. 5 is an enlarged view of a portion of the structure at A in FIG. 3;
FIG. 6 is a schematic sectional view showing a part of the structure of the second device according to the present invention.
Reference numerals: 1. a pin shaft body; 2. a first perforation; 3. an arc-shaped guide hole; 4. a machine base; 5. a clamping device; 6. a first puncher; 7. a second punch; 9. a power supply box; 10. a detection device; 11. an execution device; 12. a static contact piece; 13. a movable frame; 14. a movable contact spring; 15. a first arc-shaped block; 16. a fixed block; 17. a sliding groove; 18. positioning blocks; 19. a first spring; 20. a through groove; 21. a lower bump; 22. a lower groove; 23. a limiting ring; 24. inserting a rod; 25. a slip ring; 26. a first device; 27. a second device; 28. a lower groove; 29. a first slide bar; 30. a second arc-shaped block; 31. a movable contact rod; 32. a drive assembly; 33. a side groove; 34. perforating; 35. a second slide bar; 36. a second spring; 37. and pulling a rope.
Detailed Description
The invention is further described with reference to the accompanying drawings.
The embodiment discloses pin shaft punching equipment, which comprises a machine base 4 and a power supply box 9 for supplying power to the equipment, as shown in fig. 3. The machine base 4 is provided with a clamping device 5 for clamping the pin shaft and realizing rotation of the pin shaft, a first puncher 6 moving along the vertical direction and a second puncher 7 moving along the horizontal direction.
As shown in fig. 3 and 4, the drilling machine further comprises a detection device 10 for detecting whether the drill bit of the first drilling machine 6 is broken and outputting a detection signal, and an execution device 11 coupled to the detection device 10 and controlling whether the power supply box 9 supplies power in response to the detection signal; when the detection device 10 detects the breakage of the drill bit, the power supply box 9 stops supplying power. In the working process, the first puncher 6 punches the pin shaft clamped on the clamping device 5, then the clamping device 5 drives the pin shaft to rotate, the second puncher 7 punches the pin shaft again, in the process, the drill bit on the first puncher 6 and the drill bit on the second puncher 7 are easy to break, when the drill bit on the first puncher 6 or the drill bit on the second puncher 7 breaks, the power supply box 9 stops supplying power, the equipment stops working, continuous production of defective products is avoided, the product percent of pass is improved, and waste of materials is reduced.
As shown in fig. 3 and 4, the detecting device 10 includes a first device 26 for detecting whether the drill of the first punch 6 is broken and a second device 27 for detecting whether the drill of the second punch 7 is broken. The first device 26 comprises a static contact 12 fixed on the machine base 4, a moving frame 13 arranged on the second punching machine 7 in a sliding way, and a moving contact 14 fixed on the moving frame 13. The second punch 7 is fixedly provided with a fixed block 16, the fixed block 16 is provided with a sliding groove 17, and one end of the movable frame 13 slides in the sliding groove 17. The sliding groove 17 functions to restrict the moving frame 13 so that the moving frame 13 is more stable when moving. A positioning block 18 is further fixed on the second hole puncher 7, a first spring 19 for driving the moving frame 13 to move towards the drill bit is arranged between the positioning block 18 and the moving frame 13, one end of the first spring 19 is fixed with the moving frame 13, and the other end of the first spring 19 is fixed with the positioning block 18. The fixed block 16 is provided with a through groove 20 for the first spring 19 to pass through, so as to stabilize the first spring 19.
The static contact 12 is a contact b in the circuit, the movable contact 14 is a contact a in the circuit, the contact a is connected with a power supply VCC, the power supply b is coupled with a resistor R, the other end of the resistor R is connected with a grounding end, when the static contact 12 and the movable contact 14 are contacted, the contact a is contacted with the contact b, and the contact b outputs a high-level detection signal.
The execution device 11 comprises a triode Q, the type of the triode Q is S9013NPN type triode, the base of the triode Q is coupled to a connection point between a contact b and a resistor R, the emitter of the triode Q is grounded, a coil of a relay KM is connected in series between the collector of the triode Q and a power source VCC, two ends of the coil of the relay KM are reversely connected in parallel with a freewheeling diode D1, a normally closed contact switch S1 of the relay KM is connected in series in a power supply loop of the power box 9, when the base of the triode Q receives a high-level detection signal, the emitter and the collector of the triode Q are connected, the coil of the relay MK is powered on, the normally closed contact switch S1 of the relay KM is disconnected, the power box 9 is powered off and stops supplying power to the equipment, and.
Under the normal state, the position of the first puncher 6 after punching is the normal position, and in the process of punching by the second puncher 7, the first puncher 6 is in the normal position, one end of the movable frame 13 can abut against a drill bit on the first puncher 6, so that the movable frame 13 slides, the first spring 19 deforms, the fixed contact piece 12 is not in contact with the movable contact piece 14, and the equipment works normally. When the drill bit on the first puncher 6 is broken, one end of the movable frame 13 cannot be abutted against the drill bit on the first puncher 6 in the process of punching by the second puncher 7, the static contact piece 12 is contacted with the movable contact piece 14, the power supply box 9 stops supplying power, and the equipment stops working. It should be mentioned that, after the second hole puncher 7 re-processes the pin shaft, when the second hole puncher 7 is far away from the pin shaft, the movable frame 13 is separated from the pin shaft, and the first spring 19 enables the movable frame 13 to automatically reset, so as to facilitate the next measurement.
As shown in fig. 3 and 5, a first arc block 15 for abutting against a drill of the first drilling machine 6 is provided at one end of the moving frame 13 facing the pin. The setting of first arc piece 15 has increased the area of contact with the drill bit, and is more stable when both butts.
As shown in fig. 5, the base 4 is provided with a lower protrusion 21 fixed on the base 4, the lower protrusion 21 is provided with a lower groove 22, a limit ring 23 is disposed in the lower groove 22, an insertion rod 24 is integrally produced on the limit ring 23, and the movable contact piece 14 is provided with a sliding ring 25 sleeved outside the insertion rod 24. The plunger 24 acts as a limit for the slide ring 25 and thus acts to stabilize the movement of the movable contact 14. Meanwhile, the inserted rod 24 can be replaced, and the movable contact piece is suitable for movable contact pieces 14 of different specifications, and is wider in application range.
If the drill bit on the first puncher 6 is normal, the second puncher 7 punches the pin shaft, the movable frame 13 moves, the static contact piece 12 and the movable contact piece 14 cannot be closed all the time, the equipment normally operates, but when the drill bit on the first puncher 6 is broken, the second puncher 7 drives the movable frame 13 to move, the static contact piece 12 and the movable contact piece 14 contact under the condition that the movable frame 13 is not subjected to resistance, the equipment stops operating, and therefore manufacturing production of defective products is avoided, and the product percent of pass is improved.
As shown in fig. 3 and 6, the base 4 is provided with a lower groove 28 having an upward opening. The second device 27 comprises a first sliding rod 29 slidably disposed in the lower slot 28, a second arc-shaped block 30 disposed at the upper end of the first sliding rod 29, a movable contact rod 31, and a driving assembly 32 for driving the first sliding rod 29 to move upward. The movable contact rod 31 has one end fixed to the first slide rod 29 and the other end extending below the stationary contact 12. When the first sliding rod 29 moves upwards under the action of the driving assembly 32, the second arc-shaped block 30 is abutted against the drill bit of the second punching machine 7, the movable contact rod 31 is not contacted with the static contact 12, and the power supply box 9 supplies power normally; when the drill bit is broken, the first sliding rod 29 is moved upwards by the driving component 32, the movable contact rod 31 is contacted with the fixed contact 12, and the power supply box 9 stops supplying power.
As shown in fig. 3 and 4, the movable contact rod 31 is a contact c in fig. 4, the contact c is connected with the power source VCC, when the movable contact rod 31 is contacted with the static contact 12, the contact c is contacted with the contact b, the contact b outputs a high-level detection signal, the following circuit principle is the same as the principle after the contact a is contacted with the contact b, the power supply box 9 is powered off, the power supply to the equipment is stopped, and the equipment stops working.
As shown in fig. 3 and 6, the second punch 7 has a side groove 33 opened toward the first slide bar 29, and the bed 4 has a through hole 34 communicating with the lower groove 28. The driving assembly 32 includes a second sliding rod 35 slidably disposed in the side groove 33, a second spring 36 disposed in the side groove 33 and driving the second sliding rod 35 to move toward the side groove 33, and a pull rope 37 having one end connected to the second sliding rod 35. The other end of the pulling rope 37 passes through the through hole 34 and then is fixedly connected with the lower part of the first sliding rod 29; when second punch 7 is moved away from clamping device 5, pull cord 37 pulls first slide 29 upward until second arcuate block 30 abuts the bit of second punch 7.
After the second punch 7 processes the pin shaft, the second punch 7 moves away from the first slide bar 29, the pull rope 37 pulls the first slide bar 29 upward, and when the second arc-shaped block 30 abuts against the drill of the second punch 7, the second punch 7 thereafter continues to move away from the first slide bar 29, the second slide bar 35 is not moved relative to the first slide bar 29, the second slide bar 35 moves relative to the side groove 33, and the second spring 36 is deformed. The movable contact rod 31 is not contacted with the static contact 12, and the power box 9 supplies power normally. If the drill bit of the second puncher 7 is broken after the pin shaft is machined, the first sliding rod 29 continuously moves upwards in the whole process that the second puncher 7 moves away from the first sliding rod 29, the movable contact rod 31 is in contact with the static contact 12, and the power supply box 9 stops supplying power. It should be mentioned that when the second punch 7 is to process the pin shaft, the second punch 7 moves close to the first slide lever 29, and the first slide lever 29 moves downward due to its own weight. In the resetting process after the second perforating machine 7 finishes processing the pin shaft every time, the setting can detect the pin shaft once by the drill bit of the second perforating machine 7, and if the drill bit of the second perforating machine 7 is broken, the operation of the equipment can be stopped in time, and the damage can be stopped in time.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the design concept of the present invention should be included in the scope of the present invention.

Claims (6)

1. The utility model provides a round pin axle drilling equipment, includes frame (4) and power supply box (9) for the equipment power supply, be equipped with on frame (4) and be used for the clamp pin axle and realize rotating clamping device (5) of round pin axle, along first puncher (6) of vertical direction removal and along second puncher (7) that the horizontal direction removed, characterized by: the punching machine also comprises a detection device (10) for detecting whether the drill bit of the first punching machine (6) and the drill bit of the second punching machine (7) break or not and outputting a detection signal, and an execution device (11) which is coupled to the detection device (10) and responds to the detection signal to control whether the power supply box (9) supplies power or not; when the detection device (10) detects that the drill bit of the first puncher (6) or the drill bit of the second puncher (7) is broken, the power supply box (9) stops supplying power; the detection device (10) comprises a first device (26) for detecting whether the drill bit of the first punching machine (6) is broken and a second device (27) for detecting whether the drill bit of the second punching machine (7) is broken; the first device (26) comprises a static contact piece (12) fixed on the machine base (4), a moving frame (13) arranged on the second punching machine (7) in a sliding way and a movable contact piece (14) fixed on the moving frame (13); when the second puncher (7) approaches to the pin shaft and punching is realized, one end of the movable frame (13) is abutted against a drill bit of the first puncher (6) and prevents the movable frame (13) from moving, and the static contact piece (12) is not contacted with the movable contact piece (14); when the drill bit of the first drilling machine (6) is broken, the second drilling machine (7) moves and drives the contact piece (14) to be in contact with the movable contact piece and the static contact piece (12), and the power supply box (9) stops supplying power; a lower groove (28) with an upward opening is formed in the machine base (4); the second device (27) comprises a first sliding rod (29) arranged in the lower groove (28) in a sliding manner, a second arc-shaped block (30) arranged at the upper end of the first sliding rod (29), a movable contact rod (31) fixedly connected to the first sliding rod (29) and positioned below the static contact piece (12), and a driving assembly (32) driving the first sliding rod (29) to move upwards; when the first sliding rod (29) moves upwards under the action of the driving assembly (32), the second arc-shaped block (30) is abutted against a drill bit of the second punching machine (7), the movable contact rod (31) is not contacted with the static contact piece (12), and the power box (9) supplies power normally; when the drill bit is broken, the first sliding rod (29) is moved upwards under the action of the driving component (32), the movable contact rod (31) is contacted with the static contact piece (12), and the power supply box (9) stops supplying power.
2. The pin shaft punching device according to claim 1, wherein: a positioning block (18) is arranged on the second punching machine (7), a first spring (19) used for driving the moving frame (13) to move towards the drill bit direction of the first punching machine (6) is arranged between the positioning block (18) and the moving frame (13), one end of the first spring (19) is fixed with the moving frame (13), and the other end of the first spring (19) is fixed with the positioning block (18).
3. The pin roll punching device according to claim 2, wherein: a fixed block (16) is fixedly arranged on the second punching machine (7), a sliding groove (17) is formed in the fixed block (16), and one end of the moving frame (13) slides in the sliding groove (17).
4. The pin shaft punching device according to claim 1, wherein: one end of the movable frame (13) facing the pin shaft is provided with a first arc-shaped block (15) which is used for being abutted against a drill bit of the first drilling machine (6).
5. The pin roll punching device according to claim 3, wherein: and a through groove (20) for the first spring (19) to pass through is formed in the fixed block (16).
6. The pin shaft punching device according to claim 1, wherein: a side groove (33) with an opening facing the first sliding rod (29) is formed in the second punching machine (7), and a through hole (34) communicated with the lower groove (28) is formed in the base (4); the driving assembly (32) comprises a second sliding rod (35) which is arranged in the side groove (33) in a sliding mode, a second spring (36) which is located in the side groove (33) and drives the second sliding rod (35) to move towards the side groove (33), and a pull rope (37) of which one end is connected and fixed with the second sliding rod (35); the other end of the pull rope (37) passes through the through hole (34) and then is connected and fixed with the lower part of the first sliding rod (29); when the second punch (7) moves in a direction away from the clamping device (5), the pull rope (37) pulls the first sliding rod (29) to move upwards until the second arc-shaped block (30) is abutted to the drill bit of the second punch (7).
CN201811542734.7A 2018-12-17 2018-12-17 Pin shaft punching equipment Active CN109604669B (en)

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CN111687451A (en) * 2020-05-21 2020-09-22 杭州传智自动化科技有限公司 Chain pin shaft punching device

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