CN111408762A - Chain pin shaft perforating machine - Google Patents

Abstract

The invention provides a chain pin shaft perforating machine which comprises a base, wherein a lifting device is arranged on the base, and a drilling power head for drilling a workpiece and a pressing mechanism for pressing the workpiece are arranged on the lifting device; the base is provided with a mounting seat, the mounting seat is provided with a rotary driving device and a rotary positioning block connected with the rotary driving device, the rotary positioning block is positioned below the drilling power head, and the rotary positioning block is symmetrically provided with two positioning grooves for placing and positioning workpieces; the base is also provided with a feeding mechanism which can push the workpiece into the positioning groove; and the rotary positioning block is provided with a blowing mechanism for blowing away the drill cuttings in the positioning groove. When the chain pin shaft is punched, the workpiece does not need to be manually clamped before punching, time and labor are saved, and the machining efficiency is improved.

Description

A chain pin hole punching machine

technical field

The invention relates to the technical field of chain production, in particular to a chain pin shaft punching machine.

Background technique

The chain is generally composed of inner chain plate, outer chain plate, pin shaft and roller. The pin is an important component of the chain plate. When the pin is produced, a hole needs to be drilled at one end of the pin to install a split pin or pin. In actual production, the pin shaft is generally punched by a drilling machine. When drilling, the workpiece needs to be clamped to the tooling first, and then the drilling machine will be used for drilling. After the drilling is completed, the workpiece is removed, and the lower A workpiece is clamped to the tooling, and then continues to be punched. This processing method requires manual clamping of the workpiece before each hole is punched, which is time-consuming, labor-intensive, and inefficient.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the problems of manual clamping of the workpiece before each punching, which is time-consuming, laborious, and inefficient when punching the chain pin in the prior art, and provides a chain pin punching machine that can effectively solve the above problems.

The object of the present invention is achieved through the following technical solutions: a chain pin shaft punching machine, comprising a base, a lifting device is provided on the base, and a drilling power head for drilling a workpiece and a drilling head for drilling a workpiece are provided on the lifting device A pressing mechanism for pressing the workpiece; a mounting seat is arranged on the base, and a rotary driving device and a rotary positioning block connected with the rotary driving device are arranged on the mounting seat. The rotary positioning block is located under the drilling power head, and the rotary positioning block Two positioning grooves are symmetrically arranged on the upper part for placing the workpiece and positioning the workpiece; the base is also provided with a feeding mechanism that can push the workpiece into the positioning groove; the rotating positioning block is provided with a drilling chip for blowing the drilling chips in the positioning groove In addition to the blowing mechanism.

When punching the pin shaft in the present invention, the workpiece is first pushed into the positioning groove on the rotary positioning block by the feeding mechanism, then the workpiece is pressed by the pressing mechanism, and the drilling power head is lowered to punch the workpiece. , After the drilling is completed, the drilling power head rises and the pressing mechanism releases the workpiece, and then the rotary positioning block rotates 180 degrees under the drive of the rotary driving device, so that the positioning groove on the other side is turned to the top, and during the rotation process In the middle, the workpiece falls from the rotating positioning block and falls into the corresponding workpiece collecting device, and then the feeding mechanism pushes the next workpiece into the positioning groove to carry out the drilling operation of the next workpiece. The lifting device is used to drive the lifting and lowering of the drilling head. After each punching is completed, the air blowing mechanism can blow off the drilling chips in the positioning groove, so that the workpiece can fit with the surface of the positioning groove to ensure the positioning accuracy. When punching the chain pin shaft, the invention does not need to manually clamp the workpiece before punching, saves time and effort, and improves the processing efficiency.

Preferably, the lifting device includes a vertically arranged guide column, a lifting plate, and an upper end plate, the upper end plate is fixedly arranged on the upper end of the guiding column, the lifting plate is slidably connected to the guiding column, and the upper end plate is provided with a vertical plate for driving the lifting plate. Straight moving lifting hydraulic cylinder, drilling power head is set under the lifting plate. The lifting plate moves vertically under the driving of the lifting hydraulic cylinder, thereby driving the drilling power head to move vertically.

Preferably, the pressing mechanism includes a pressing plate slidably connected to the guide column, the pressing plate is located below the lifting plate, the pressing plate and the lifting plate are connected by a first spring, and the pressing plate is provided with a drill hole. When the lift plate descends, the pressure plate also descends and presses the workpiece; when the lift plate rises, the pressure plate rises and separates from the workpiece.

Preferably, the feeding mechanism includes a workpiece placing plate disposed on one side of the rotary positioning block, and a pushing cylinder for pushing the workpiece into the positioning groove is disposed on one side of the workpiece placing plate. The workpieces to be processed are placed side by side on the workpiece placement plate, and the push cylinder can push the workpieces into the positioning grooves one by one through the movement of the piston rod to realize automatic feeding.

Preferably, the workpiece placement plate is inclined.

Preferably, the cross section of the positioning groove is "V" shaped.

Preferably, the rotary drive device is a deceleration motor.

Preferably, the blowing mechanism includes a cylindrical cavity and a central shaft, the cylindrical cavity is arranged in the center of the rotating positioning block, one end of the cylindrical cavity is provided with a bearing, one end of the central shaft is connected to the bearing, and the other end is fixedly connected to the mounting seat; A guide hole is provided, and the guide hole is arranged along the axial direction of the central axis; the cylindrical cavity is provided with a piston that can move axially along the cylindrical cavity, and the side of the piston close to the central axis is provided with a moving guide rod, and the moving guide rod is slidably connected In the guide hole, a second spring is arranged between the other side of the piston and one end of the cylindrical cavity; the inner wall of the cylindrical cavity is provided with a guide groove, the side of the piston is provided with a bump, and the bump is slidably connected in the guide groove to guide the The groove is composed of two inclined grooves connected end to end and two transition grooves, and the transition groove is connected between the two inclined grooves; one end of the positioning groove is provided with an air blowing port, and the air blowing port is connected with the cylindrical cavity through an air passage. The piston can only move along the axis of the cylindrical cavity under the action of the moving guide rod and the guide groove, and will not rotate. When the rotary positioning block rotates, the rotary positioning block and the piston rotate relative to each other, which is the convex block on the side of the piston. Sliding along the guide groove, when the rotary positioning block rotates 180 degrees, the bump will move from one end of the inclined groove to the other end of the inclined groove and transition to one end of the other inclined groove through the transition groove under the action of the spring. In this process , the piston completes an axial reciprocating movement in the circumferential cavity. During the axial movement, the piston will blow the air in the circumferential cavity through the gas channel and finally blow out from the blowing port, thereby blowing the positioning groove and positioning the positioning groove. Drill cuttings in the groove are blown off.

Preferably, the cross sections of the moving guide rod and the guide hole are both rectangular.

The beneficial effects of the invention are: when the chain pin shaft is punched, the workpiece does not need to be clamped manually before punching, which saves time and effort and improves the processing efficiency.

Description of drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic structural diagram of a rotary positioning block.

3 is a cross-sectional view of a rotary positioning block.

FIG. 4 is a schematic view of the guide groove after it is flattened.

In the picture: 1. Base, 2. Guide column, 3. Upper end plate, 4. Lifting hydraulic cylinder, 5. Lifting plate, 6. Drilling power head, 7. Pressure plate, 8. First spring, 9. Drill hole, 10. Mounting seat, 11. Rotating positioning block, 12. Workpiece placement plate, 13. Pushing cylinder, 14. Positioning slot, 15. Air blowing port, 16. Center shaft, 17. Geared motor, 18. Motor mounting plate, 19, Cylinder cavity, 20, piston, 21, boss, 22, moving guide rod, 23, bearing, 24, guide hole, 25, guide groove, 26, second spring, 27, gas channel, 28, inclined groove, 29, transition slot.

Detailed ways

The present invention will be further described below through specific embodiments and in conjunction with the accompanying drawings.

Example 1:

As shown in FIGS. 1 to 4 , a chain pin shaft punching machine includes a base 1 , and a guide column 2 is arranged on the base 1 . There are two guide columns 2 in total. The guide column 2 is arranged vertically. The upper end of the guide column 2 is provided with an upper end plate 3 . The upper end plate 3 is arranged horizontally. A lift plate 5 is slidably connected to the guide column 2 . The lift plate 5 is arranged horizontally. The upper end plate 3 is provided with a lift hydraulic cylinder 4 for driving the lift plate 5 to move vertically. The lower end of the lift plate 5 is provided with a drilling power head 6 . The drilling power head 6 is in the prior art. A pressure plate 7 is slidably connected to the guide column 2 . The pressing plate 7 can move vertically along the guide column 2 . The pressing plate 7 is located below the lifting plate 5 . The pressing plate 7 and the lifting plate 5 are connected by a first spring 8 . The pressing plate 7 is provided with a drill hole 9 through which the drill on the drilling power head 6 can pass.

The base 1 is provided with a mounting seat 10 . The mounting base 10 is provided with a rotation positioning block 11 and a deceleration motor 17 . The rotary positioning block 11 is located below the drilling power head 6 . The geared motor 17 is mounted on one side of the mounting base 10 through the motor mounting plate 18 . The rotary positioning block 11 is connected with the deceleration motor 17 , and the rotary positioning block 11 is driven by the deceleration motor 17 to rotate. The rotation positioning block 17 is symmetrically provided with two positioning grooves 14 for placing the workpiece and positioning the workpiece. The cross-section of the positioning grooves 14 is in a "V" shape.

The rotary positioning block 11 is provided with an air blowing mechanism for blowing off the drill cuttings in the positioning groove 14 . The air blowing mechanism includes a cylindrical cavity 19 and a central axis 16 , and the cylindrical cavity 19 is arranged in the center of the rotary positioning block 11 . One end of the cylindrical cavity 19 is provided with a bearing 23 , one end of the central shaft 16 is connected to the bearing 13 , and the other end of the central shaft 16 is fixedly connected to the mounting seat 10 . The central shaft 16 is provided with a guide hole 24 , and the guide hole 24 is arranged along the axial direction of the central shaft 16 . The cylindrical cavity 19 is provided with a piston 20 axially movable along the cylindrical cavity 19 . A moving guide rod 22 is disposed on the side of the piston 20 close to the central axis 16 , and the moving guide rod 22 is slidably connected in the guide hole 24 . The moving guide rod 22 and the guide hole 24 have the same cross section and are both rectangular. A second spring 26 is provided between the other side of the piston 20 and one end of the cylindrical cavity 19 . The inner wall of the cylindrical cavity 19 is provided with a guide groove 25 , the side surface of the piston 20 is provided with a bump 21 , and the bump 21 is slidably connected in the guide groove 25 . The guide groove 25 is composed of two inclined grooves 28 connected end to end and two transition grooves 29 , and the transition groove 29 is connected between the two inclined grooves 28 . One end of the positioning groove is provided with an air blowing port 15 , and the air blowing port 15 is connected with the cylindrical cavity 19 through the air passage 27 . The piston can only move along the axis of the cylindrical cavity under the action of the moving guide rod and the guide groove, and will not rotate. When the rotary positioning block rotates, the rotary positioning block and the piston rotate relative to each other, which is the convex block on the side of the piston. Sliding along the guide groove, when the rotary positioning block rotates 180 degrees, the bump will move from one end of the inclined groove to the other end of the inclined groove and transition to one end of the other inclined groove through the transition groove under the action of the spring. In this process , the piston completes an axial reciprocating movement in the circumferential cavity. During the axial movement, the piston will blow the air in the circumferential cavity through the gas channel and finally blow out from the blowing port, thereby blowing the positioning groove and positioning the positioning groove. Drill cuttings in the groove are blown off.

The base 1 is also provided with a feeding mechanism that can push the workpiece into the positioning groove 14 . The feeding mechanism includes a workpiece placing plate 12 arranged on one side of the rotating positioning block 11 , and the workpiece placing plate 12 is inclined. A push cylinder 13 for pushing the workpiece into the positioning groove is provided on one side of the workpiece placing plate 12 . The workpieces to be processed are placed side by side on the workpiece placement plate, and the push cylinder can push the workpieces into the positioning grooves one by one through the movement of the piston rod to realize automatic feeding.

When punching the pin shaft in the present invention, the workpiece is first pushed into the positioning groove on the rotary positioning block by the feeding mechanism, then the workpiece is pressed by the pressing mechanism, and the drilling power head is lowered to punch the workpiece. , After the drilling is completed, the drilling power head rises and the pressing mechanism releases the workpiece, and then the rotary positioning block rotates 180 degrees under the drive of the rotary driving device, so that the positioning groove on the other side is turned to the top, and during the rotation process In the middle, the workpiece falls from the rotating positioning block and falls into the corresponding workpiece collecting device, and then the feeding mechanism pushes the next workpiece into the positioning groove to carry out the drilling operation of the next workpiece. The lifting device is used to drive the lifting and lowering of the drilling head. After each drilling is completed, the air blowing mechanism can blow off the drilling chips in the positioning groove, so that the workpiece can fit with the surface of the positioning groove to ensure the positioning accuracy. When punching the chain pin, the invention does not need to manually clamp the workpiece before punching, saves time and effort, and improves the processing efficiency.

Finally, it should be noted that the above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still possible to Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection.

Claims (9)

1. a chain pin shaft punching machine is characterized in that, comprises a base, the base is provided with a lifting device, and the lifting device is provided with a drilling power head for drilling the workpiece and a drilling head for compressing the workpiece. A pressing mechanism; a mounting seat is arranged on the base, and a rotary driving device and a rotary positioning block connected with the rotary driving device are arranged on the mounting seat. The positioning groove is used for placing the workpiece and positioning the workpiece; the base is also provided with a feeding mechanism that can push the workpiece into the positioning groove; the rotary positioning block is provided with a blowing mechanism for blowing off the drill chips in the positioning groove. 2. A chain pin shaft punching machine according to claim 1, wherein the lifting device comprises a vertically arranged guide column, a lifting plate and an upper end plate, and the upper end plate is fixedly arranged on the upper end of the guide column, The lift plate is slidably connected to the guide column, the upper end plate is provided with a lift hydraulic cylinder for driving the lift plate to move vertically, and the drilling power head is arranged below the lift plate. 3. A chain pin hole punching machine according to claim 2, wherein the pressing mechanism comprises a pressing plate slidably connected to the guide column, the pressing plate is located below the lifting plate, and the pressing plate is located between the lifting plate and the lifting plate. They are connected through a first spring, and a drill hole is provided on the pressing plate. 4. A chain pin hole punching machine according to claim 1, characterized in that, the feeding mechanism comprises a workpiece placing plate arranged on one side of the rotary positioning block, and one side of the workpiece placing plate is provided with a tool for pushing the workpiece into Positioning the push cylinder in the slot. 5 . The chain pin shaft punching machine according to claim 4 , wherein the workpiece placement plate is inclined. 6 . 6 . The punching machine for a chain pin shaft according to claim 1 , wherein the cross-section of the positioning groove is in a “V” shape. 7 . 7 . The chain pin shaft punching machine according to claim 1 , wherein the rotary drive device is a deceleration motor. 8 . 8. A chain pin shaft punching machine according to claim 1, wherein the air blowing mechanism comprises a cylindrical cavity and a central shaft, the cylindrical cavity is arranged in the center of the rotary positioning block, and one end of the cylindrical cavity is provided with a bearing, One end of the central shaft is connected to the bearing, and the other end is fixedly connected to the mounting seat; the central shaft is provided with a guide hole, which is arranged along the axial direction of the central shaft; the cylindrical cavity is provided with a piston that can move axially along the cylindrical cavity , the side of the piston close to the central axis is provided with a moving guide rod, the moving guide rod is slidably connected in the guide hole, a second spring is provided between the other side of the piston and one end of the cylindrical cavity; the inner wall of the cylindrical cavity is provided with a guide groove , the side of the piston is provided with a bump, the bump is slidably connected in the guide groove, the guide groove is composed of two inclined grooves connected end to end and two transition grooves, and the transition groove is connected between the two inclined grooves; one end of the positioning groove An air blowing port is provided, and the air blowing port is connected with the cylindrical cavity through a gas channel. 9 . The chain pin shaft punching machine according to claim 8 , wherein the moving guide rod and the guide hole have the same cross section and are both rectangular. 10 .

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