A precision punching machine for grinding circular shaft parts

Abstract

The present invention mainly discloses a precision punching machine for circular shaft grinding parts, and its technical scheme comprises a frame, an automatic feeding device, a pushing device, a loading device, a clamping device, a punching device and a PLC controller located on the frame. The automatic feeding device cooperates with the pushing device to feed materials, a cylindrical pin is sent to the front of the loading device by the pushing device, the cylindrical pin is pushed and clamped by the clamping device, and then the cylindrical pin is punched by the punching device. The automatic feeding device, the pushing device, the clamping device and the punching device are respectively connected to the PLC controller, and have the advantages of automatic punching, reduced labor intensity, and sound insulation and noise reduction.

Description

Technical Field

[0001] The invention relates to the field of production tooling equipment, in particular to a precision punching machine for grinding round shaft parts. Background Art

[0002] At present, the drilling of the axial surface of precision-ground circular shaft parts requires employees to manually place the pin on the bracket and press it firmly. For example, when a cylindrical pin is drilled using a drilling machine, the labor intensity is high, the labor efficiency is low, the quality of the processed products is unstable, and a lot of time is wasted in the process of picking and placing materials, and more personnel are required. Similar tailor-made products on the market cannot meet the use of existing working conditions. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a precision punching machine for circular shaft grinding parts, which has the advantages of automatic punching, reduced labor intensity, and sound insulation and noise reduction.

[0004] In order to achieve the above-mentioned purpose, the present invention is realized through the following technical scheme: a precision punching machine for circular shaft grinding parts, including a frame, an automatic feeding device, a pushing device, a loading device, a clamping device, a punching device and a PLC controller located on the frame, the automatic feeding device cooperates with the pushing device to feed, the cylindrical pin is sent to the front of the loading device by the pushing device, the cylindrical pin is pushed and clamped by the clamping device, and then the cylindrical pin is punched by the punching device, the automatic feeding device, the pushing device, the clamping device and the punching device are respectively connected to the PLC controller.

[0005] Preferably, the automatic feeding device includes a motor, a rotary differential feeding tray and a discharge pipe. The motor is located at the bottom of the frame. The motor is rotatably connected to the rotary differential feeding tray. One side of the rotary differential feeding tray cooperates with one side of the discharge pipe to feed the material, and the other side of the discharge pipe cooperates with the pushing device. Driven by the motor, the rotary differential feeding tray generates centrifugal force on the cylindrical pin, which is pushed into the discharge pipe by the centrifugal force. The discharge pipe sends the parts to the feeding trough. The parts are fed under the action of centrifugal force, and the noise is greatly reduced.

[0006] Preferably: the pushing device includes a first cylinder and a feeding seat, the feeding seat includes a feeding block and a stopper, a feeding trough is provided on the front side of the feeding block, one side of the feeding trough cooperates with the discharge pipe, and a stopper is installed on the other side of the feeding trough, the first cylinder is connected to the feeding block, and the feeding trough on the feeding block is pushed to the corresponding front part of the loading device by the first cylinder. The size of the feeding trough can be actually formulated to adapt to cylindrical pins of different sizes, and the installed stopper can prevent the cylindrical pin from falling out, and plays a positioning role when feeding.

[0007] Preferably: the loading device comprises a base, a loading seat and a U-shaped groove seat, the upper part of the base is connected to the loading seat, the loading seat is laterally provided with a mounting opening, the U-shaped groove seat is fixedly installed in the mounting opening, a receiving opening and a pair of punching openings are provided on the side of the U-shaped groove seat, and the shape of the U-shaped groove seat is adapted to the cylindrical pin.

[0008] Preferably: the clamping device includes a second cylinder, a fourth cylinder, a push rod assembly, a material return assembly and a clamp, the push rod assembly includes an upper push rod and a lower push rod, the upper push rod is connected to the material return assembly, the second cylinder is installed on one side of the upper part of the frame, the fourth cylinder is installed on the other side of the upper part of the frame, the second cylinder drives the upper push rod and the lower push rod to move forward, the upper push rod drives the material return assembly to return from the U-shaped groove seat, the lower push rod drives the cylindrical pin to push into the U-shaped groove seat, and the lower push rod and the material return assembly fix the two ends of the cylindrical pin respectively, and the fourth cylinder drives the clamp to fix the side of the cylindrical pin in the U-shaped groove seat. The cylindrical pin is supported by the lower push rod, and then the clamp is further pushed to fix the pin shaft again to prevent the cylindrical pin from slipping when punching, which has a double fixing effect and better stability.

[0009] Preferably: the material removal assembly includes an L-shaped sliding rod, a sliding seat, a fixed block, a slide rail and a material removal rod, the fixed block is installed on the upper side of the fourth cylinder, one end of the slide rail is fixed to the material removal rod, and the other end is slidably connected to the fixed block, the L-shaped sliding rod is fixedly connected to the upper ejector rod, the sliding seat is connected to the upper side of the loading seat, the straight part of the L-shaped sliding rod is movably connected to the sliding seat, the curved part of the L-shaped sliding rod is fixed to the slide rail, the second cylinder drives the upper ejector rod to move backward, the upper ejector rod drives the L-shaped sliding rod to move backward, thereby driving the material removal rod to push the cylindrical pin out of the U-shaped groove seat. The overall structural design is simple and practical, and the feeding and unloading of materials can be completed by the same cylinder.

[0010] Preferably: a pin is provided at the front end of the fourth cylinder, the front end face of the pin is an inclined surface, an upper protrusion and a lower protrusion are provided on the side of the clamp, the lower protrusion is hinged between the charging seats, the upper protrusion is movably matched with the accommodating port, the front end of the fourth cylinder drives the pin to move, and the pin pushes the side face of the clamp, thereby causing the upper protrusion to deflect and enter the accommodating port to fix the side face of the cylindrical pin.

[0011] Preferably, the drilling device comprises a third cylinder and a drill bit, and the third cylinder pushes the drill bit into the drilling opening to drill a hole in the pin shaft.

[0012] Preferably, a deburring baffle is provided in front of the drill bit on the third cylinder, the deburring baffle is provided with a through hole, and the drill bit passes through the through hole and cooperates with the clearance thereof. When resetting, the through hole of the deburring baffle cleans the burrs on the drill bit, which is convenient for the next drilling.

[0013] Preferably, a proximity switch is provided above the U-shaped groove seat in the loading seat, and a cutting fluid delivery mechanism is provided on the frame. The proximity switch can effectively detect whether the cylindrical pin is pushed into the U-shaped groove seat to avoid the machine running empty in the next step, and the cutting fluid delivery mechanism cooperates with the drill bit to cool the heat generated by drilling.

[0014] The present invention has the beneficial effects of:

[0015] The automatic feeding device, pushing device, loading device, clamping device and punching device are controlled by the PLC controller to work in an orderly manner to complete the entire operation of feeding, punching and returning the materials. The high degree of automation reduces labor intensity and improves processing efficiency. Parts are fed under the action of centrifugal force and noise is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 It is a side schematic diagram of the present invention;

[0018] Figure 3 It is a structural schematic diagram of another angle of the present invention;

[0019] Figure 4 Based Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 This is a schematic diagram of the connection between the fourth cylinder and the clamp in the present invention;

[0021] Figure 6 It is a schematic diagram of the U-shaped groove seat structure in the present invention.

[0022] Figure numerals: 1, frame; 2, motor; 3, rotary differential feeding tray; 4, discharge pipe; 5, first cylinder; 6, feeding block; 7, stopper; 8, feeding trough; 9, base; 10, loading seat; 11, U-shaped slot seat; 12, installation opening; 13, receiving opening; 14, punching opening; 15, second cylinder; 16, fourth cylinder; 17, clamp; 18, upper ejector rod; 19, lower ejector rod; 20, L-shaped sliding rod; 21, sliding seat; 22, fixing block; 23, slide rail; 24, ejector rod; 25, ejector pin; 26, upper raised portion; 27, lower raised portion; 28, third cylinder; 29, drill bit; 30, deburring baffle; DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are further described in detail with reference to the accompanying drawings.

[0024] like Figure 1-6The precision punching machine for circular shaft grinding parts comprises a frame 1, an automatic feeding device, a pushing device, a loading device, a clamping device, a punching device and a PLC controller located on the frame 1. The automatic feeding device cooperates with the pushing device to feed materials, and the cylindrical pin is sent to the front of the loading device by the pushing device, and the cylindrical pin is pushed and clamped by the clamping device, and then the cylindrical pin is punched by the punching device. The automatic feeding device, the pushing device, the clamping device and the punching device are respectively connected to the PLC controller.

[0025] The automatic feeding device includes a motor 2, a rotary differential feeding tray 3 and a discharge pipe 4. The motor 2 is located at the bottom of the frame 1. The motor 2 is rotatably connected to the rotary differential feeding tray 3. One side of the rotary differential feeding tray 3 cooperates with one side of the discharge pipe 4 to feed the material, and the other side of the discharge pipe 4 cooperates with the pushing device. Driven by the motor 2, the rotary differential feeding tray 3 generates centrifugal force on the cylindrical pin, and the cylindrical pin is pushed into the discharge pipe 4 by the centrifugal force. The discharge pipe 4 sends the parts to the feeding trough 8. The parts are fed under the action of centrifugal force, and the noise is greatly reduced.

[0026] The pushing device includes a first cylinder 5 and a feeding seat, the feeding seat includes a feeding block 6 and a stopper 7, a feeding trough 8 is provided on the front side of the feeding block 6, one side of the feeding trough 8 cooperates with the discharge pipe 4, and the stopper 7 is installed on the other side of the feeding trough 8, the first cylinder 5 is connected to the feeding block 6, and the feeding trough 8 on the feeding block 6 is pushed to the corresponding front part of the loading device through the first cylinder 5. The size of the feeding trough 8 can be actually formulated to adapt to cylindrical pins of different sizes, and the installed stopper 7 can prevent the cylindrical pin from falling out, and plays a positioning role during feeding.

[0027] The loading device includes a base 9, a loading seat 10 and a U-shaped groove seat 11. The upper part of the base 9 is connected to the loading seat 10. The loading seat 10 is horizontally provided with a mounting opening 12. The U-shaped groove seat 11 is fixedly installed in the mounting opening 12. A accommodating opening 13 and a pair of punching openings 14 are provided on the side of the U-shaped groove seat 11. The shape of the U-shaped groove seat 11 is adapted to the cylindrical pin.

[0028] The clamping device includes a second cylinder 15, a fourth cylinder 16, a push rod assembly, a material return assembly and a clamp 17. The push rod assembly includes an upper push rod 18 and a lower push rod 19. The upper push rod 18 is connected to the material return assembly. The second cylinder 15 is installed on one side of the upper part of the frame 1, and the fourth cylinder 16 is installed on the other side of the upper part of the frame 1. The second cylinder 15 drives the upper push rod 18 and the lower push rod 19 to move forward at the same time, and the upper push rod 18 drives the material return assembly to return from the U-shaped groove seat 11, and the lower push rod 19 drives the cylindrical pin to be pushed into the U-shaped groove seat 11. In this way, the lower push rod 19 and the material return assembly fix the two ends of the cylindrical pin respectively. The proximity switch set can effectively detect whether the cylindrical pin is pushed into the U-shaped groove seat 11. After the fourth cylinder 16 receives the signal that the cylindrical pin is pushed to death, the fourth cylinder 16 drives the clamp 17 to fix the side of the cylindrical pin in the U-shaped groove seat 11. The cylindrical pin is supported by the lower push rod 19, and then the clip 17 is further pushed to fix the pin shaft again to prevent the cylindrical pin from slipping during drilling. It has a double fixing effect and better stability.

[0029] The material return assembly includes an L-shaped sliding rod 20, a sliding seat 21, a fixed block 22, a slide rail 23 and a material return rod 24. The fixed block 22 is installed on the upper side of the fourth cylinder 16. One end of the slide rail 23 is fixed to the material return rod 24, and the other end is slidably connected to the fixed block 22. The L-shaped sliding rod 20 is fixedly connected to the upper ejector rod 18, the sliding seat 21 is connected to the upper side of the loading seat 10, the straight part of the L-shaped sliding rod 20 is movably connected to the sliding seat 21, and the curved part of the L-shaped sliding rod 20 is fixed to the slide rail 23. The second cylinder 15 drives the upper ejector rod 18 to move backward, and the upper ejector rod 18 drives the L-shaped sliding rod 20 to move backward, thereby driving the material return rod 24 to push the cylindrical pin out of the U-shaped groove seat 11, and the cylindrical pin falls into the discharge port set at the front lower part of the U-shaped groove seat 11. The overall structural design is simple and practical, and feeding and withdrawing can be completed by the same cylinder.

[0030] A pin 25 is provided at the front end of the fourth cylinder 16, and the front end face of the pin 25 is an inclined surface. An upper protrusion 26 and a lower protrusion 27 are provided on one side of the clip 17. The lower protrusion 27 is hinged between the charging seats 10, and the upper protrusion 26 is movably matched with the accommodating port 13. The front end of the fourth cylinder 16 drives the pin 25 to move. Since the front end face of the pin 25 is an inclined surface, the end face of the pin 25 can push the side of the clip 17 to deflect, so that the protrusion 26 on the clip 17 deflects into the accommodating port 13 to fix the side of the cylindrical pin, and then the drill bit 29 is pushed into the punching port 14 by the third cylinder 28 to drill the pin shaft. At the same time, the cutting fluid delivery mechanism sprays cutting fluid to cool the heat generated by drilling. The drill bit 29 is independently set and driven to rotate by the driver, and the third cylinder 28 can drive the entire driver to move. The third cylinder 28 is provided with a deburring baffle 30 in front of the drill bit 29, and the deburring baffle 30 is provided with a through hole, and the drill bit 29 passes through the through hole and is matched with its clearance. When resetting, the through hole of the deburring baffle 30 cleans the burrs on the drill bit 29, which is convenient for drilling next time.

[0031] During operation, the rotary differential feeding disc 3 is driven by the motor 2 to push the cylindrical pin into the discharge pipe 4 through the centrifugal force, and the discharge pipe 4 sends the parts to the feeding trough 8. At this time, the first cylinder 5 is started to drive the cylindrical pin in the feeding trough 8 to the front of the U-shaped groove seat 11, and the second cylinder 15 is started to drive the upper ejector rod 18 and the lower ejector rod 19 to move forward at the same time. The upper ejector rod 18 drives the L-shaped sliding rod 20 to move, thereby driving the ejector rod 24 to retreat from the U-shaped groove seat 11, and the lower ejector rod 19 simultaneously drives the cylindrical pin to be pushed into the U-shaped groove seat 11 and fixes the cylindrical pin. After the proximity switch detects that the cylindrical pin is pushed into the U-shaped groove seat 11, the fourth cylinder 16 is started to drive the ejector 25 to move. The end face of the ejector 25 can push the clamp 17, so that the protrusion 26 on the clamp 17 deflects and enters the receiving port 13 to fix the side of the cylindrical pin. The third cylinder 28 is further started to push the drill 29 into the punching port 14 to drill the pin shaft. After the drilling is completed, the second cylinder 15 drives the upper ejector 18 and the lower ejector 19 to move backward at the same time, and the lower ejector 19 is withdrawn from the U-shaped groove seat 11, and the ejector 24 enters the U-shaped groove seat 11 to push the cylindrical pin out. The automatic feeding device, the pushing device, the loading device, the clamping device and the punching device are controlled by the PLC controller to cooperate in an orderly manner to complete the entire operation of feeding, punching and withdrawing. The degree of automation is high, the labor intensity is reduced, and the processing efficiency is improved. The parts are fed under the action of centrifugal force, and the noise is greatly reduced.

[0032] The above embodiments are only used to explain the inventive concept of the present invention, rather than to limit the protection of the rights of the present invention. Any non-substantial changes to the present invention using this concept shall fall within the protection scope of the present invention.

Claims

1. A precision punching machine for grinding round shaft parts, characterized by: It includes a frame, an automatic feeding device, a pushing device, a loading device, a clamping device, a punching device and a PLC controller located on the frame. The automatic feeding device cooperates with the pushing device to feed materials, the pushing device sends the cylindrical pin to the front of the loading device, the clamping device pushes and clamps the cylindrical pin, and then the punching device punches the cylindrical pin. The automatic feeding device, the pushing device, the clamping device and the punching device are connected to the PLC controller respectively. The automatic feeding device includes a motor, a rotary differential feeding tray and a discharge pipe. The motor is located at the bottom of the frame. The motor is rotatably connected to the rotary differential feeding tray. One side of the rotary differential feeding tray cooperates with one side of the discharge pipe to feed the material, and the other side of the discharge pipe cooperates with the pushing device. The pushing device includes a first cylinder and a feeding seat, the feeding seat includes a feeding block and a stopper, a feeding trough is provided on the front side of the feeding block, one side of the feeding trough cooperates with the discharge pipe, and a stopper is installed on the other side of the feeding trough, the first cylinder is connected to the feeding block, and the feeding trough on the feeding block is pushed to the corresponding front part of the loading device by the first cylinder; The loading device comprises a base, a loading seat and a U-shaped groove seat, the upper part of the base is connected to the loading seat, the loading seat is horizontally provided with a mounting opening, the U-shaped groove seat is fixedly installed in the mounting opening, and a receiving opening and a pair of punching openings are provided on the side of the U-shaped groove seat; The clamping device includes a second cylinder, a fourth cylinder, a push rod assembly, a material return assembly and a clamp, the push rod assembly includes an upper push rod and a lower push rod, the upper push rod is connected to the material return assembly, the second cylinder is installed on one side of the upper part of the frame, and the fourth cylinder is installed on the other side of the upper part of the frame. The second cylinder drives the upper push rod and the lower push rod to move forward, the upper push rod drives the material return assembly to return from the U-shaped groove seat, the lower push rod drives the cylindrical pin to be pushed into the U-shaped groove seat, and the lower push rod and the material return assembly fix the two ends of the cylindrical pin respectively, and the fourth cylinder drives the clamp to fix the side of the cylindrical pin in the U-shaped groove seat; The drilling device comprises a third cylinder and a drill bit, and the third cylinder pushes the drill bit into the drilling opening to drill a hole on the pin shaft.

2. A precision punching machine for grinding round shaft parts according to claim 1, characterized in that: The material return assembly includes an L-shaped sliding rod, a sliding seat, a fixed block, a sliding rail and a material return rod. The fixed block is installed on the upper side of the fourth cylinder. One end of the sliding rail is fixed to the material return rod, and the other end is slidably connected to the fixed block. The L-shaped sliding rod is fixedly connected to the upper ejector rod, the sliding seat is connected to the upper side of the loading seat, the straight part of the L-shaped sliding rod is movably connected to the sliding seat, and the curved part of the L-shaped sliding rod is fixed to the sliding rail. The second cylinder drives the upper ejector rod to move backward, and the upper ejector rod drives the L-shaped sliding rod to move backward, thereby driving the material return rod to push the cylindrical pin out of the U-shaped groove seat.

3. A precision punching machine for grinding round shaft parts according to claim 2, characterized in that: A ejector is provided at the front end of the fourth cylinder, and the end face of the front section of the ejector is an inclined surface. An upper protrusion and a lower protrusion are provided on the side of the clamp. The lower protrusion is hinged between the charging seats, and the upper protrusion is movably matched with the accommodating port. The front end of the fourth cylinder drives the ejector to move, and the ejector pushes the side face of the clamp, thereby deflecting the upper protrusion into the accommodating port to fix the side face of the cylindrical pin.

4. The precision punching machine for grinding round shaft parts according to claim 1, characterized in that: A deburring baffle is arranged in front of the drill bit on the third cylinder. The deburring baffle is provided with a through hole, and the drill bit passes through the through hole to cooperate with the clearance of the through hole.

5. The precision punching machine for grinding round shaft parts according to claim 1, characterized in that: A proximity switch is arranged above the U-shaped groove seat in the charging seat, and a cutting fluid conveying mechanism is also arranged on the frame.

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