A punching machine for roll processing

Through the design of the scroll spring and adjustment cylinder, the drill bit resistance is detected and the drill bit is automatically protected, which solves the problem of drill bit rotation resistance caused by debris accumulation during the drilling process, and improves the quality and safety of drilling holes.

CN120002467BActive Publication Date: 2025-07-22HUBEI SHILI MOLD MATERIAL
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Patent Information

Application Number
CN202510486786.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-04-18
Publication Date
2025-07-22
Estimated Expiration
2045-04-18

AI Technical Summary

Technical Problem

Existing hole punching machines for roll processing During the drilling process, debris accumulates between the drill bit and the hole wall to increase the drill bit rotation resistance, affecting the drilling quality and increasing the risk of twisting.

Method used

The design of scroll spring and adjustment cylinder is adopted to detect the resistance of the drill bit and automatically stop the drill bit from rotating and retracting when the resistance is too large. Combined with the telescopic water pipe to remove debris, reduce the risk of drilling bit breaking and improve drilling accuracy.

Benefits of technology

Effectively reduce the risk of drill bit twisting, improve drilling quality and operating efficiency, reduce the increase in hole wall roughness, and ensure drilling accuracy and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of punching devices, and specifically discloses a punching machine for roll processing, including a machine body, a clamping mechanism, and a punching mechanism. The punching mechanism includes: a feed seat and a feed driver, the feed seat is movably assembled on the machine body, and the feed driver is installed on the machine body and connected to the feed seat; an adjusting cylinder and a drill bit, the adjusting cylinder is installed on the feed seat through a first spiral groove, and the drill bit is rotatably installed at one end of the adjusting cylinder facing the clamping mechanism; a transmission member and a rotation driver, the transmission member is installed at the end of the drill bit close to the adjusting cylinder, and includes a scroll spring and a guide disk connecting the inner end of the scroll spring and driving the scroll spring to move in the feed direction, the rotation driver is installed on the feed seat and connected to the inner end of the scroll spring, the outer end of the scroll spring is connected to the drill bit, and the guide disk is installed on the drill bit through a second spiral groove. The punching machine for roll processing reduces the risk of drill bit breakage and improves the drilling quality.
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Description

Technical Field

[0001] The present invention relates to the technical field of punching devices, and particularly relates to a punching machine for roll processing. Background Art

[0002] Rolls are key components in rolling equipment, mainly used for metal pressure processing, such as the rolling of steel and non-ferrous metals, as well as the calendering processing in industries such as papermaking and plastics. During the assembly process of the roll, a punching machine is required to process some positioning holes and assembly holes on the roll to ensure the correct installation and positioning of the roll in the rolling mill.

[0003] In the prior art, a punching machine for roll processing, such as a punching machine for roll processing disclosed in a Chinese patent document with the authorization announcement number CN215545077U, can increase the clamping effect during roll processing by setting two groups of roll clamps, and can clamp the roll more efficiently; it adopts an electric-driven three-jaw chuck, which has a rapid clamping and improves work efficiency. Compared with a manual chuck, the electric chuck only needs to press a button to automatically center and clamp the workpiece instantly, and the clamping force is stable and adjustable; by placing the drill bit and the roll clamp on the same horizontal plane, the punching accuracy can be improved, and the detachable drill bit can be replaced with other drill bits according to needs, making it more convenient to use.

[0004] However, during the punching process of the above-mentioned punching machine for roll processing in the prior art, if the generated debris cannot be effectively discharged, it is easy to accumulate between the drill bit and the hole wall. Excessive accumulation of debris will significantly increase the resistance during the rotation of the drill bit, thereby affecting the drilling quality, resulting in problems such as increased roughness of the hole wall and reduced drilling accuracy. In addition, when the resistance on the drill bit is too large, there may also be a risk of the drill bit breaking, which will not only damage the drill bit, but also may cause the interruption of roll processing and even damage the machine tool. Summary of the Invention

[0005] The present invention provides a punching machine for roll processing, aiming to solve the problems in the punching machine for roll processing in the related art that the debris accumulated between the drill bit and the hole wall will increase the resistance during the rotation of the drill bit, thereby affecting the drilling quality and increasing the risk of drill bit breakage.

[0006] The punching machine for roll processing provided by the present invention adopts the following technical solutions:

[0007] A punching machine for roll processing, comprising a machine body, a clamping mechanism arranged on the machine body for fixing the roll, and a punching mechanism arranged on the machine body for punching the roll. The punching mechanism includes:

[0008] A feed base and a feed driver, where the feed base is movably assembled on the machine body, and the feed driver is installed on the machine body and connected to the feed base to drive the feed base to move along the feed direction;

[0009] An adjusting cylinder and a drill bit, where the adjusting cylinder is installed on the feed base through a first spiral groove, and the drill bit is rotatably installed at one end of the adjusting cylinder facing the clamping mechanism;

[0010] A transmission member and a rotary driver, where the transmission member is installed at the end of the drill bit close to the adjusting cylinder and includes a scroll spring for detecting the resistance of the drill bit, and a guide disk connected to the inner end of the scroll spring and driving the scroll spring to move along the feed direction. The rotary driver is installed on the feed base and connected to the inner end of the scroll spring. The outer end of the scroll spring is connected to the drill bit to drive the drill bit to rotate. The guide disk is installed on the drill bit through a second spiral groove, so that when the scroll spring is compressed, the guide disk can drive the scroll spring to move to the adjusting cylinder, so that the outer end of the scroll spring is connected to the adjusting cylinder to drive the adjusting cylinder to rotate, and then the adjusting cylinder drives the drill bit to retract.

[0011] With the above technical solutions, through the settings of the scroll spring and the adjusting cylinder, it is possible to detect the resistance suffered by the drill bit during the drilling process, and when the resistance is too large, trigger the drill bit to stop rotating and retract the drill bit, automatically protecting the drill bit, effectively reducing the risk of the drill bit being broken torsionally, improving the safety of the processing process, and reducing the problems of increased hole wall roughness and reduced drilling accuracy caused by too large resistance, improving the drilling quality. In addition, the automated resistance detection and drill bit retraction mechanism reduces manual intervention and improves the operating efficiency of the drilling machine.

[0012] Further, the drill bit includes a rotating cylinder rotatably installed on the adjusting cylinder and a drill body fixed to the end of the rotating cylinder away from the adjusting cylinder, and the transmission member is installed inside the rotating cylinder.

[0013] Further, the inner wall of the rotating cylinder is provided with the second spiral groove and an annular groove, the annular groove communicates with one end of the second spiral groove close to the adjusting cylinder, and a guide block movably assembled in the second spiral groove and capable of entering the annular groove is fixed on the outer wall of the guide disk.

[0014] Further, the transmission member further includes an elastic telescopic cylinder connected between the scroll spring and the guide disk, and the elastic telescopic cylinder is used to apply an elastic force to the guide disk to make the guide disk away from the scroll spring, so that the guide block on the guide disk can enter the second spiral groove from the annular groove.

[0015] Further, a first straight groove is provided on the inner wall of the rotating cylinder, the end of the first straight groove close to the adjusting cylinder has a first opening, a spring block is provided at the first opening of the first straight groove, and the outer end of the scroll spring is installed in the first straight groove through a clamping block and can cross the spring block and enter the adjusting cylinder.

[0016] Further, one side of the elastic block close to the adjusting cylinder has a first inclined surface, and the side far from the adjusting cylinder has a second inclined surface, and the inclination angle of the first inclined surface is smaller than that of the second inclined surface.

[0017] With the above technical solution, the elastic block is provided to assist in resistance detection, so that the clamping block of the scroll spring can be smoothly switched between the rotating cylinder and the adjusting cylinder, ensuring that the clamping block of the scroll spring remains in the correct position. When the resistance received by the drill bit increases to a certain extent, the clamping block of the scroll spring can cross the elastic block and enter the adjusting cylinder. When resetting, due to the inclination angle of the first inclined surface being smaller than that of the second inclined surface, the clamping block of the scroll spring can easily cross the elastic block and enter the rotating cylinder. The elastic block can also buffer part of the resistance through its own elastic deformation when the resistance received by the drill bit is too large, thereby protecting the drill bit.

[0018] Further, a second straight groove is opened on the inner wall of the adjusting cylinder. The end of the second straight groove close to the rotating cylinder has a second opening. An inclined surface is provided at the second opening of the second straight groove, and the inclined surface inclines outward from the first opening to the second opening direction, and the clamping block can enter the second straight groove along the inclined surface.

[0019] With the above technical solution, the distances from the first straight groove and the second straight groove to the rotation axis of the drill bit are different, so that the clamping block can cooperate with the second straight groove only after being completely separated from the first straight groove, which is beneficial to ensuring the reliability of the transmission switching, avoiding the situation of jamming or partial cooperation of the clamping block during the switching process, and improving the stability of the equipment operation.

[0020] Further, the transmission member further includes a transmission cylinder, the inner end of the scroll spring is fixed on the transmission cylinder, and the rotary driver drives the scroll spring to rotate through the transmission cylinder.

[0021] Further, a plurality of rhombic protrusions distributed along the circumferential direction of the adjusting cylinder are provided on the outer wall of the adjusting cylinder. The first spiral groove is opened on the feed base, and a spiral protrusion matching with the first spiral groove is provided on the outer wall of the adjusting cylinder.

[0022] With the above technical solution, the rhombic protrusions are provided to increase the friction between the hand and the adjusting cylinder and provide a better grip, facilitating the staff to manually rotate the adjusting cylinder to reset the adjusting cylinder; the cooperation between the spiral protrusion and the first spiral groove can provide axial and radial positioning at the same time, making the adjusting cylinder more stable during the movement process.

[0023] Further, the drilling mechanism further includes a telescopic water pipe provided on the feed base and passing through the adjusting cylinder to connect to the drill bit. One end of the telescopic water pipe is communicated with the outside, and the other end is communicated with a flushing hole opened at the end of the drill bit.

[0024] With the above technical solution, the telescopic water pipe is used to introduce the flushing liquid to flush the debris at the drilling position of the roll and the end of the drill bit, ensuring the cleanliness of the drill hole and being beneficial to the maintenance of the drill bit.

[0025] The beneficial effects of a drilling machine for roll processing provided by the present invention are as follows: Through the setting of the scroll spring and the adjusting cylinder, the resistance suffered by the drill bit during the drilling process can be detected, and when the resistance is too large, the drill bit is triggered to stop rotating and retract, automatically protecting the drill bit, effectively reducing the risk of the drill bit being broken torsionally, improving the safety of the processing process, and reducing the problems of increased roughness of the hole wall and reduced drilling accuracy caused by too large resistance, improving the drilling quality. In addition, the automated resistance detection and drill bit retraction mechanism reduce manual intervention and improve the operating efficiency of the drilling machine. Brief Description of the Drawings

[0026] Figure 1 It is a schematic structural diagram of a drilling machine for roll processing of the present invention.

[0027] Figure 2 It is a schematic structural diagram of a drilling mechanism of a drilling machine for roll processing of the present invention.

[0028] Figure 3 It is a cross-sectional view of a drilling mechanism of a drilling machine for roll processing of the present invention.

[0029] Figure 4 It is a cross-sectional view of a transmission member of a drilling machine for roll processing of the present invention.

[0030] Figure 5 It is a schematic structural diagram of a transmission member of a drilling machine for roll processing of the present invention.

[0031] Reference Signs:

[0032] 10, body; 110, clamping mechanism; 120, drilling mechanism; 130, roll; 20, feed seat; 210, first spiral groove; 30, transmission member; 310, transmission cylinder; 320, scroll spring; 321, clamping block; 330, elastic telescopic cylinder; 340, guide disk; 341, guide block; 350, connecting disk; 50, adjusting cylinder; 510, second straight groove; 511, inclined surface; 520, rhombic protrusion; 530, spiral protrusion; 60, drill bit; 610, rotating cylinder; 611, second spiral groove; 612, annular groove; 613, first straight groove; 614, elastic block; 620, drill body; 70, telescopic water pipe. Detailed Embodiments

[0033] The embodiments of the present invention will be described in detail below, and the examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention but should not be construed as limiting the present invention.

[0034] As Figures 1 to 5 shown, an embodiment of the drilling machine for roll processing according to the present invention includes a machine body 10, a clamping mechanism 110, and a drilling mechanism 120. The clamping mechanism 110 and the drilling mechanism 120 are respectively arranged on the machine body 10. Among them, the clamping mechanism 110 is used to fix the roll 130, and the drilling mechanism 120 is used to drill the roll 130.

[0035] As Figures 1 to 3 shown, the drilling mechanism 120 includes a feed base 20, a feed driver, a transmission member 30, a rotation driver, an adjustment cylinder 50, a drill bit 60, and a telescopic water pipe 70.

[0036] The feed base 20 is movably assembled on the machine body 10. One side of the feed base 20 facing the clamping mechanism 110 has a mounting hole, and a first helical groove 210 is formed on the inner wall of the mounting hole. The feed driver is installed on the machine body 10 and connected to the feed base 20 to drive the feed base 20 to move along the feed direction.

[0037] As Figures 2 to 4 shown, the adjustment cylinder 50 is installed in the mounting hole of the feed base 20. The outer wall of the adjustment cylinder 50 is provided with a helical protrusion 530 and a rhombic protrusion 520. The helical protrusion 530 cooperates with the first helical groove 210. The thread helix direction of the first helical groove 210 determines the moving direction of the adjustment cylinder 50 in a specific rotation direction. The setting of the helical protrusion 530 can provide axial and radial positioning at the same time, making the adjustment cylinder 50 more stable during movement. A plurality of rhombic protrusions 520 are circumferentially distributed along the adjustment cylinder 50, which are used to increase the friction between the hand and the adjustment cylinder 50 and provide a better grip, facilitating the staff to manually rotate the adjustment cylinder 50 to reset the adjustment cylinder 50. A second straight groove 510 extending along the feed direction is formed on the inner wall of the adjustment cylinder 50.

[0038] The drill bit 60 includes a rotating cylinder 610 rotatably mounted on the adjusting cylinder 50 and a drill body 620 fixed to the end of the rotating cylinder 610 away from the adjusting cylinder 50. The inner wall of the rotating cylinder 610 is provided with a second helical groove 611, an annular groove 612, and a first straight groove 613. The annular groove 612 communicates with one end of the second helical groove 611 close to the adjusting cylinder 50. The first straight groove 613 is located on one side of the annular groove 612 away from the second helical groove 611. The first straight groove 613 extends along the feeding direction, and the end of the first straight groove 613 close to the adjusting cylinder 50 has a first opening. The end of the second straight groove 510 close to the rotating cylinder 610 has a second opening. An inclined surface 511 is provided at the second opening of the second straight groove 510. The inclined surface 511 is inclined outward from the first opening towards the second opening. A spring block 614 is provided at the first opening of the first straight groove 613. One side of the spring block 614 close to the adjusting cylinder 50 has a first inclined surface, and the side away from the adjusting cylinder 50 has a second inclined surface. The inclination angle of the first inclined surface is smaller than that of the second inclined surface. A flushing hole is provided at the end of the drill body 620.

[0039] As Figures 3 to 5 shown, the transmission member 30 is installed in the rotating cylinder 610 and includes a transmission cylinder 310, a scroll spring 320, an elastic telescopic cylinder 330, a guide disk 340, and a connecting disk 350.

[0040] The transmission cylinder 310 includes an inner sleeve and an outer sleeve sleeved with each other. The inner wall of the outer sleeve is provided with a limiting groove along the feeding direction. The outer wall of the inner sleeve has a limiting protrusion extending along the feeding direction and slidingly matched with the limiting groove, so that the inner sleeve and the outer sleeve can be telescopic and the inner sleeve and the outer sleeve rotate synchronously. The rotary driver is installed on the feeding base 20 and connected to the outer sleeve of the transmission cylinder 310 to drive the transmission cylinder 310 to rotate.

[0041] The scroll spring 320 is used to detect the resistance of the drill bit 60. The inner end of the scroll spring 320 is fixed to the inner sleeve of the transmission cylinder 310, and a clamping block 321 is fixed to the outer end of the scroll spring 320. The clamping block 321 is installed in the first straight groove 613 to drive the drill bit 60 to rotate, so as to perform the drilling work. When the drill bit 60 encounters excessive resistance, the scroll spring 320 is compressed. At this time, the clamping block 321 can cross the spring block 614 and enter the second straight groove 510 of the adjusting cylinder 50 to drive the adjusting cylinder 50 to rotate, and further make the rotation direction of the adjusting cylinder 50 match the spiral direction of the first spiral groove 210, so that the adjusting cylinder 50 drives the drill bit 60 to retract axially.

[0042] It should be noted that the elastic block 614 is provided to assist in resistance detection, enabling the latch 321 of the scroll spring 320 to smoothly switch between the rotating cylinder 610 and the adjusting cylinder 50, ensuring that the latch 321 of the scroll spring 320 remains in the correct position. The elastic block 614 can also buffer part of the resistance through its own elastic deformation when the resistance received by the drill bit 60 is too large, thereby protecting the drill bit 60.

[0043] The connecting disk 350 is fixed on the inner sleeve of the transmission cylinder 310 and is located on the side of the scroll spring 320 close to the drill body 620.

[0044] The guiding disk 340 is used to drive the scroll spring 320 to move along the feeding direction, so that the latch 321 at the outer end of the scroll spring 320 can move between the first straight groove 613 and the second straight groove 510. The guiding disk 340 is located on the side of the connecting disk 350 close to the drill body 620 and is connected to the connecting disk 350 through the elastic telescopic cylinder 330. A guiding block 341 that is movably assembled in the second spiral groove 611 and can enter the annular groove 612 is fixed on the outer wall of the guiding disk 340. The elastic telescopic cylinder 330 is used to apply an elastic force to the guiding disk 340 to make the guiding disk 340 away from the scroll spring 320, so that the guiding block 341 on the guiding disk 340 can enter the second spiral groove 611 from the annular groove 612.

[0045] It should be noted that the distances from the first straight groove 613 and the second straight groove 510 to the rotation axis of the drill bit 60 are different, so that after the latch 321 is completely disengaged from the first straight groove 613, it cooperates with the second straight groove 510, which is beneficial to ensuring the reliability of the transmission switch, avoiding jamming or partial cooperation of the latch 321 during the switching process, and improving the stability of the equipment operation.

[0046] The telescopic water pipe 70 is arranged on the feeding seat 20 and passes through the adjusting cylinder 50 to connect the drill bit 60. One end of the telescopic water pipe 70 is communicated with the outside, and the other end is communicated with the flushing hole opened at the end of the drill bit 60. The telescopic water pipe 70 is used to introduce flushing liquid to flush the drilling area of the roller 130 and the debris at the end of the drill bit 60, ensuring the cleanliness of the drilling and being beneficial to the maintenance of the drill bit 60.

[0047] The working process of the drilling machine for roller processing of the present invention includes the following steps:

[0048] In the first step, clamping and drilling, the roller 130 to be drilled is fixed on the clamping mechanism 110. The feeding driver drives the feeding seat 20 to approach the roller 130 along the feeding direction. The latch 321 at the outer end of the scroll spring 320 is located in the first straight groove 613. The rotation driver drives the transmission cylinder 310 to rotate, and the transmission cylinder 310 drives the drill bit 60 to rotate through the scroll spring 320, and the drill bit 60 drills the roller 130.

[0049] Step 2: Resistance detection. Under normal conditions, the volute spring 320 maintains a certain pre-tightening force and balances with the feeding force of the drill bit 60. When the resistance received by the drill bit 60 gradually increases, the volute spring 320 starts to be compressed. The inner end of the volute spring 320 rotates relative to the outer end, that is, the guiding disk 340 rotates relative to the rotating cylinder 610. The guiding block 341 on the guiding disk 340 moves in the second spiral groove 611, causing the guiding disk 340 to drive the volute spring 320 to move towards the adjusting cylinder 50. When the resistance received by the drill bit 60 is too large, the guiding block 341 on the guiding disk 340 enters the annular groove 612 along the second spiral groove 611. The guiding disk 340 drives the volute spring 320 to continue moving towards the adjusting cylinder 50, enabling the clamping block 321 at the outer end of the volute spring 320 to cross over the elastic block 614 and enter the adjusting cylinder 50. The volute spring 320 no longer drives the drill bit 60 to rotate, and the drill bit 60 stops rotating.

[0050] Step 3: Protection retraction. The transmission cylinder 310 continuously rotates under the drive of the rotary driver and drives the volute spring 320 to continuously rotate. After the volute spring 320 enters the adjusting cylinder 50, the elastic force stored in the volute spring 320 during the resistance detection process makes the clamping block 321 tend to move outwards. During the continuous rotation of the volute spring 320, the clamping block 321 can extend into the second straight groove 510, so that the volute spring 320 drives the adjusting cylinder 50 to rotate, thereby enabling the adjusting cylinder 50 to drive the drill bit 60 to retract relative to the feeding seat 20. During the process of the adjusting cylinder 50 driving the drill bit 60 to retract, the switch of the rotary driver can be automatically triggered, causing the rotary driver to stop driving the transmission cylinder 310 to rotate, thereby cutting off the power supply, which is convenient for the staff to check the drill bit 60 and the drilling situation.

[0051] Step 4: Flushing debris. While the drill bit 60 retracts, flushing liquid is introduced into the telescopic water pipe 70 through an external flushing liquid pressure pump. The flushing liquid is sprayed from the flushing holes at the end of the drill bit 60 through the telescopic water pipe 70 to the drilling position to wash away the debris at the drilling area of the roller 130 and at the end of the drill bit 60.

[0052] Step 5: Manual reset. The staff manually rotates the adjusting cylinder 50 to make the adjusting cylinder 50 extend relative to the feeding seat 20. The volute spring 320 rotates under the drive of the adjusting cylinder 50. Due to the elastic force of the elastic telescopic cylinder 330 on the guiding disk 340, the guiding block 341 on the guiding disk 340 can enter the second spiral groove 611 from the annular groove 612. The rotation of the volute spring 320 drives the guiding block 341 on the guiding disk 340 to move along the second spiral groove 611. Under the guidance of the second spiral groove 611, the guiding disk 340 drives the volute spring 320 away from the adjusting cylinder 50. The clamping block 321 at the outer end of the volute spring 320 crosses over the elastic block 614 and enters the first straight groove 613 of the rotating cylinder 610 to complete the reset.

[0053] Thus, through the provision of the scroll spring 320 and the adjustment cylinder 50, the drilling machine for roll processing according to the present invention can detect the resistance suffered by the drill bit 60 during the drilling process, trigger the drill bit 60 to stop rotating and retract the drill bit 60 when the resistance is too large, automatically protect the drill bit 60, effectively reduce the risk of the drill bit 60 being broken by torsion, improve the safety of the processing process, and can reduce the problems of increased hole wall roughness and reduced drilling accuracy caused by excessive resistance, improve the drilling quality. In addition, the automatic resistance detection and drill bit 60 retraction mechanism reduces manual intervention and improves the operating efficiency of the drilling machine.

[0054] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0055] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0056] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A drilling machine for roll processing, comprising a machine body, a clamping mechanism arranged on the machine body for fixing a roll, and a drilling mechanism arranged on the machine body for drilling the roll, characterized in that, The punching mechanism includes: A feed base and a feed driver, wherein the feed base is movably assembled on the machine body, and the feed driver is installed on the machine body and connected to the feed base to drive the feed base to move along the feed direction; An adjustment cylinder and a drill bit, wherein the adjustment cylinder is installed on the feed base through a first spiral groove, and the drill bit is rotatably installed at one end of the adjustment cylinder facing the clamping mechanism; A transmission member and a rotation driver, wherein the transmission member is installed at the end of the drill bit close to the adjustment cylinder, and includes a scroll spring for detecting the resistance of the drill bit and a guide disk connecting the inner end of the scroll spring and driving the scroll spring to move along the feed direction. The rotation driver is installed on the feed base and connected to the inner end of the scroll spring. The outer end of the scroll spring is connected to the drill bit to drive the drill bit to rotate. The guide disk is installed on the drill bit through a second spiral groove, so that when the scroll spring is compressed, the guide disk can drive the scroll spring to move to the adjustment cylinder, so that the outer end of the scroll spring is connected to the adjustment cylinder to drive the adjustment cylinder to rotate, and then the adjustment cylinder drives the drill bit to retract; The drill bit includes a rotating cylinder rotatably installed on the adjustment cylinder and a drill body fixed to the end of the rotating cylinder away from the adjustment cylinder, and the transmission member is installed inside the rotating cylinder; The inner wall of the rotating cylinder is provided with the second spiral groove and an annular groove, and the annular groove communicates with one end of the second spiral groove close to the adjustment cylinder. A guide block is fixedly installed on the outer wall of the guide disk and movably assembled in the second spiral groove and can enter the annular groove; The transmission member further includes an elastic telescopic cylinder connected between the scroll spring and the guide disk, and the elastic telescopic cylinder is used to apply an elastic force to the guide disk to make the guide disk away from the scroll spring, so that the guide block on the guide disk can enter the second spiral groove from the annular groove; The inner wall of the rotating cylinder is provided with a first straight groove, and the end of the first straight groove close to the adjustment cylinder has a first opening. A spring block is arranged at the first opening of the first straight groove. The outer end of the scroll spring is installed in the first straight groove through a clamping block and can cross the spring block and enter the adjustment cylinder; One side of the spring block close to the adjustment cylinder has a first inclined surface, and the side away from the adjustment cylinder has a second inclined surface, and the inclination angle of the first inclined surface is smaller than the inclination angle of the second inclined surface; The inner wall of the adjustment cylinder is provided with a second straight groove, and the end of the second straight groove close to the rotating cylinder has a second opening. An inclined surface is arranged at the second opening of the second straight groove, and the inclined surface inclines outward from the first opening to the second opening direction, and the clamping block can enter the second straight groove along the inclined surface; 2. The drilling machine for roll processing according to claim 1, wherein The transmission member further includes a transmission cylinder, the inner end of the scroll spring is fixed on the transmission cylinder, and the rotation driver is connected to the scroll spring through the transmission cylinder to drive the scroll spring to rotate; 3. A punching machine for roll processing according to claim 1, characterized in that, The outer wall of the adjustment cylinder is provided with a plurality of rhombic protrusions distributed circumferentially along the adjustment cylinder. The first spiral groove is opened on the feed base, and the outer wall of the adjustment cylinder is provided with spiral protrusions matching the first spiral groove; 4. A punching machine for roll processing according to claim 1, characterized in that, The punching mechanism further includes a telescopic water pipe arranged on the feed base and passing through the adjustment cylinder to connect the drill bit. One end of the telescopic water pipe communicates with the outside, and the other end communicates with a flushing hole opened at the end of the drill bit.

Citation Information

Patent Citations

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    CN215545077U

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