Drilling machine for plate processing

Abstract

The invention relates to the technical field of plate processing, and discloses a drilling machine for plate processing. The lifting mechanism is mounted on the workbench, and the mounting seats are mounted on the workbench; the first adjusting rod is horizontally and slidably mounted on the mounting seat; the second adjusting rod slides up and down on the first adjusting rod in a vertical state; the bearing plate is fixedly mounted at the lower end of the second adjusting rod; the pressing plate is slidably mounted on the second adjusting rod; the fixing assembly is arranged on the second adjusting rod and used for driving the second adjusting rod to be fixedly installed on the first adjusting rod, and the pressing plate is fixedly installed on the second adjusting rod. The damping assembly is mounted on the mounting base and comprises a connecting ring and a rotating ring, the first adjusting rod is slidably mounted on the connecting ring in the axial direction of the first adjusting rod, and the rotating ring is rotatably mounted on the connecting ring; and the driving assembly is installed on the workbench and used for driving the rotating ring to rotate. The damping effect of the plate can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of plate processing, and in particular to a drilling machine for plate processing. Background Art

[0002] Traditional drilling machine equipment usually consists of a workbench, a lifting mechanism and a high-speed rotating drill assembly. The drill is driven by a motor to perform drilling processing on the plate fixed on the workbench. However, there are common systemic technical problems caused by processing vibration in the prior art: when the drill cuts into the plate at a high speed of thousands of revolutions per minute, the cutting reaction force and the internal stress release of the material work together to cause multi-directional composite vibration of the plate. This vibration phenomenon not only causes relative displacement between the workpiece and the drill bit, seriously affecting the drilling positioning accuracy, but also causes resonance effect of the equipment structure.

[0003] To address the problem of plate displacement, conventional solutions often use air cylinders or hydraulic cylinders as external pressure devices, and rigidly fix the workpiece through the pressure plate at the end of the piston rod. However, practice has shown that such mechanical clamping mechanisms can only provide static restraints and cannot effectively attenuate dynamic processing vibrations. Its technical defects are as follows: the vibration energy is reversely transmitted to the inside of the actuator through the transmission path of the workpiece-pressure plate-piston rod, causing high-frequency reciprocating impacts on the cylinder sealing assembly, significantly shortening the service life of the cylinder body and piston rod. Summary of the invention

[0004] In order to improve the vibration level generated when a plate is drilled, the present application provides a drilling machine for plate processing.

[0005] The present application provides a drilling machine for plate processing, which adopts the following technical solution: A drilling machine for plate processing, comprising: Workbench; A lifting mechanism is installed on the workbench; The drill bit is transmission-connected with the lifting mechanism; A plurality of mounting seats, mounted on the workbench; A first adjusting rod, horizontally slidably mounted on the mounting seat; A second adjusting rod, which is in a vertical state and slides up and down on the first adjusting rod; A receiving plate, fixedly mounted on the lower end of the second adjusting rod; A pressure plate, slidably mounted on the second adjusting rod; A fixing assembly, arranged on the second adjusting rod, used to drive the second adjusting rod to be fixedly mounted on the first adjusting rod, and the pressing plate to be fixedly mounted on the second adjusting rod; A shock absorbing assembly is mounted on the mounting seat, the shock absorbing assembly comprises a connecting ring and a rotating ring, the first adjusting rod is slidably mounted on the connecting ring along its own axial direction, and the rotating ring is rotatably mounted on the connecting ring; A driving assembly is installed on the workbench, and the driving assembly is used to drive the rotating ring to rotate. By adopting the above technical solution, the receiving plate prevents the plate from directly contacting the workbench surface, the horizontal sliding of the first adjusting rod on the mounting seat can control the position adjustment of the receiving plate along the axial direction of the first adjusting rod, and the up and down sliding of the second adjusting rod can control the height position adjustment of the receiving plate. The sliding cooperation of the pressure plate and the second adjusting rod cooperates with the fixing assembly to stabilize the plate and can also clamp plates of different thicknesses. Multiple mounting seats are arranged to form a distribution. When multiple mounting seats fix the same plate, multiple first adjusting rods restrict each other to fix the position of the plate. Through the coaxial rotation design of the connecting ring and the swivel of the shock-absorbing component, when the processing vibration is transmitted to the first adjusting rod, the controllable rotation of the swivel driven component produces a centrifugal damping effect, effectively attenuating the transmission path of the vibration wave and achieving the shock-absorbing effect of the plate.

[0006] Optionally, the shock absorbing assembly also includes a limit rod, which passes through the connecting ring. There are multiple limit rods evenly distributed along the circumference of the connecting ring. Both ends of the limit rod are respectively fixedly mounted on the rotating ring. The two ends of the limit rod form an angle and the angle is located within the connecting ring.

[0007] By adopting the above technical solution, when vibration occurs, a relative movement tendency is generated between the connecting ring and the swivel ring. The limiting rod is designed with an angle at both ends so that the swivel ring can only rotate in the circumferential direction and cannot move in the axial direction, thereby achieving the effect of the swivel ring and the connecting ring being able to maintain stable relative rotation. The angle formed at both ends of the limiting rod increases the contact area with the connecting ring, thereby further attenuating the vibration energy through friction.

[0008] Optionally, the mounting seat includes: The two connecting tubes are hollow structures with openings at both ends, the first adjusting rod passes through the connecting tube, and a distance is left between the connecting rod and the first adjusting rod. The connecting tube is a truncated cone structure with openings at both ends, and the limiting rod is attached to the outer wall of the diameter-changing section of the connecting tube; The two supporting bodies are respectively fixedly connected to one of the connecting tubes, and the supporting bodies are installed on the workbench.

[0009] By adopting the above technical solution, the design of the connecting tube enables a tighter fit between the limit rod and the connecting tube, improves the force transmission efficiency, enhances the shock absorption effect, and the supporting body provides a stable support for the connecting tube, reduces deformation caused by vibration, and improves the overall rigidity of the mounting seat. During the drilling process, the vibration is transmitted to the mounting seat through the plate. The fitting design of the reducing section of the connecting tube and the limit rod enables the vibration energy to be more effectively attenuated through the limit rod, reducing the transmission to other parts of the drilling machine.

[0010] Optionally, the ends of the plurality of limit rods are simultaneously connected to an extension ring, and the inner wall of the extension ring is fitted onto the outer wall of the connecting tube.

[0011] By adopting the above technical solution, the extension ring increases the contact area between the limit rod and the connecting tube, thereby improving the absorption and dispersion capabilities of vibration energy.

[0012] Optionally, the mounting seat is fixedly mounted on the workbench, the driving assembly includes a driven gear and a driving gear that mesh with each other, and a driving member that drives the driving gear to rotate, the driven gear is sleeved on the outer wall of the rotating ring, and the driving assembly and the mounting seat correspond one to one.

[0013] By adopting the above technical solution, when the shock absorbing effect needs to be adjusted, the driving member (such as a motor) drives the driven gear to rotate through the driving gear, thereby driving the swivel to rotate. The gear transmission realizes the precise control of the swivel by the driving component, thereby improving the response speed and accuracy of the shock absorbing component.

[0014] Optionally, a plurality of coaxial annular grooves are provided on the upper surface of the workbench, the mounting seat slides in the annular grooves, and a fixing member for fixing the mounting seat is provided on the workbench; a clearance groove is provided at the bottom of the annular groove, and the swivel partially extends out of the workbench through the clearance groove, and the driving assembly includes a disc and a driving member for driving the disc to rotate, the disc is located below the workbench and has a spacing from the lower surface of the workbench, a push rod is installed on the disc, and the central axis of the push rod extends in the radial direction of the disc, the swivel is extended with protrusions, the protrusions are spaced apart along the circumference of the swivel, and the push rod contacts the protrusions when the disc rotates.

[0015] By adopting the above technical solution, when processing plates of different sizes, the mounting seat slides along the annular groove to a suitable position and is fixed; the fixing piece ensures that the mounting seat is firmly fixed on the workbench during the processing to prevent the mounting seat from moving due to vibration. During the rotation of the disc of the driving assembly, the push rod periodically contacts the bump, driving the rotating ring to rotate a certain angle, thereby realizing intermittent operation of the shock absorbing assembly.

[0016] Optionally, a plurality of push rods with the same radial size are evenly spaced and distributed along the circumference of the disk.

[0017] 1. By adopting the above technical solution, when the disc rotates, the evenly distributed push rods contact the protrusions of the rotating ring in turn, driving the rotating ring to rotate at the same angle. This uniform driving method avoids the failure of vibration control caused by insufficient or excessive driving of individual rotating rings, and improves the overall shock absorption effect.

[0018] Optionally, the fixing assembly includes two nuts, which are threadedly connected to the second adjusting rod, one of the nuts abuts against the lower surface of the first adjusting rod, and the other nut drives the pressure plate to abut against the upper surface of the first adjusting rod.

[0019] By adopting the above technical solution, when it is necessary to adjust the height of the second adjusting rod, the two nuts are loosened, the second adjusting rod is slid to a suitable position, and then the nuts are tightened again.

[0020] Optionally, a positioning block is installed on the receiving plate.

[0021] By adopting the above technical solution, the positioning block provides an accurate positioning reference for the plate.

[0022] In summary, the present application includes at least one of the following beneficial effects: 1. Through the design of the shock-absorbing components, including the connecting ring, the swivel and the limit rod, the processing vibration is effectively attenuated; the coaxial rotation design of the connecting ring and the swivel produces a centrifugal damping effect during vibration transmission, reducing the transmission of lateral vibration waves. The design of the limit rod further stabilizes the relative movement of the swivel and the connecting ring, and attenuates the vibration energy through friction. These shock-absorbing measures work together to significantly reduce the multi-directional composite vibration during drilling, thereby improving the positioning accuracy of drilling and the overall processing stability; 2. The drilling machine adopts a design of multiple mounting seats and a first adjusting rod and a second adjusting rod, so that the positions of the receiving plate and the pressure plate can be flexibly adjusted to adapt to plates of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 is a cross-sectional view of a workbench according to an embodiment of the present application; Figure 3 yes Figure 2 A magnified schematic diagram of point A; Figure 4 It is a schematic diagram of a three-dimensional structure in which a shock absorbing assembly is installed on a mounting seat in an embodiment of the present application; Figure 5 is a cross-sectional schematic diagram of an embodiment of the present application embodying a drive assembly including a disc; Figure 6 yes Figure 5 An enlarged schematic diagram of point B; Figure 7 This is a schematic diagram of the structure of a workbench in which a mounting seat can be slidably adjusted according to an embodiment of the present application; Figure 8 yes Figure 7 Enlarged schematic diagram of point C.

[0024] Explanation of the reference numerals: 10. workbench; 11. clearance groove; 12. annular groove; 13. screw rod; 14. slider; 20. lifting mechanism; 30. mounting seat; 31. connecting tube; 32. supporting body; 40. first adjusting rod; 50. second adjusting rod; 51. receiving plate; 52. pressure plate; 53. positioning block; 60. nut; 70. shock absorbing assembly; 71. connecting ring; 72. swivel; 73. limiting rod; 74. extension ring; 75. bump; 90. driving assembly; 91. driven gear; 92. driving gear; 93. driving member; 94. disc; 95. push rod; 100. plate. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1 -Attached Figure 8 This application is described in further detail.

[0026] The present invention provides a drilling machine for plate processing, the overall structure of which includes a workbench 10, a lifting mechanism 20, a drill bit, a mounting seat 30, a first adjusting rod 40, a second adjusting rod 50, a receiving plate 51, a pressing plate 52, a fixing assembly, a shock absorbing assembly 70 and a driving assembly 90. The specific implementation of each part is described below according to functional modularization: Reference Figure 1 The upper surface of the workbench 10 is flat and is used to place the plate 100. The lifting mechanism 20 is fixedly installed above the workbench 10. The lifting mechanism 20 is lifted and lowered by an electric telescopic rod or manually operated to adjust the height of the drill bit. The lifting mechanism 20 is connected to the drill bit through a transmission device to ensure that the drill bit moves synchronously with the lifting mechanism 20. The height adjustment and rotation of the drill bit are prior arts and will not be described in detail in this application.

[0027] Reference Figure 1 and Figure 2 , multiple mounting seats 30 are evenly distributed on the surface of the workbench 10, and a first adjustment rod 40 is horizontally slidably mounted on each mounting seat 30. The first adjustment rod 40 moves horizontally along its own axial direction to adjust its position. The second adjustment rod 50 is in a vertical state, and the first adjustment rod 40 is provided with a through hole for the second adjustment rod 50 to pass through, and the second adjustment rod 50 slides up and down on the first adjustment rod 40.

[0028] Reference Figure 3, the lower end of the second adjusting rod 50 is connected with a receiving plate 51, and the pressing plate 52 slides up and down on the second adjusting rod 50 and is located above the first adjusting rod 40. A positioning block 53 is installed on the receiving plate 51, and the positioning block 53 is used to contact the side wall of the plate 100, so that when the plate 100 is located on multiple receiving plates 51, the position of the plate 100 is accurately positioned, and there is a gap between the plate 100 and the surface of the workbench 10, which can not only reduce the vibration transmitted by the plate 100 to the workbench 10, but also leave space for the drill bit to rotate. When the position of the plate 100 is determined, the pressing plate 52 is pressed downward, so that the plate 100 is clamped between the pressing plate 52 and the receiving plate 51, and the vibration of the plate 100 is transmitted to the second adjusting rod 50.

[0029] Reference Figure 3 and Figure 4 The fixing assembly is used to drive the second adjusting rod 50 to be fixedly mounted on the first adjusting rod 40, and the pressing plate 52 to be fixedly mounted on the second adjusting rod 50. The fixing assembly is specifically two nuts 60, and both nuts 60 are threadedly connected to the second adjusting rod 50. When the fixing assembly fixes the second adjusting rod 50 and the pressing plate 52, one nut 60 abuts against the lower surface of the first adjusting rod 40, and the other nut 60 drives the pressing plate 52 to abut against the upper surface of the first adjusting rod 40.

[0030] Reference Figure 3 and Figure 4 The shock absorbing assembly 70 is mounted on the mounting seat 30. The shock absorbing assembly 70 includes a connecting ring 71 and a rotating ring 72. The rotating ring 72 is rotatably mounted on the connecting ring 71. The cross section of the first adjusting rod 40 is a rectangular structure. The connecting ring 71 is round outside and square inside. The first adjusting rod 40 passes through the connecting ring 71. The first adjusting rod 40 is slidably mounted on the connecting ring 71 along its own axial direction. When the plate 100 is drilled, the driving assembly 90 drives the rotating ring 72 to rotate, so that the rotating ring 72 and the connecting ring 71 attenuate the vibration energy through friction, thereby effectively reducing the processing vibration.

[0031] Specifically, there is a large friction force between the connecting ring 71 and the first adjusting rod 40, and an external force is required to push the first adjusting rod 40 to move axially along the connecting ring 71. The shock absorbing assembly 70 also includes a plurality of limit rods 73. A plurality of circular holes are opened through the end of the connecting shaft along the circumferential direction. The limit rods 73 penetrate into the circular holes, and the two ends of the limit rods 73 extend out of the circular holes. The two ends of the limit rods 73 are respectively fixedly connected to the two end surfaces of the rotating ring 72, and the two end surfaces of the rotating ring 72 are inclined surfaces. The limit rod 73 is a rod with an L-shaped structure. The portion of the limit rod 73 that forms an angle is located in the circular hole. A limit rod 73 and the connecting ring 71 have three positions of contact, so that the connecting ring 71 and the rotating ring 72 maintain a stable coaxial relationship, and the rotating ring 72 can only rotate along its own central axis and cannot move along the conversion axial direction.

[0032] The mounting seat 30 includes two connecting tubes 31 and two supporting bodies 32. The two supporting bodies 32 are fixedly connected to the ends of one connecting tube 31 respectively, and the supporting bodies 32 are installed on the workbench 10. The connecting tube 31 is a truncated cone structure with two ends opened. The first adjusting rod 40 passes through the connecting tube 31 and has a gap with the inner wall of the connecting tube 31. The part of the limiting rod 73 extending out of the connecting ring 71 is attached to the outer wall of the connecting tube 31, so that the mounting seat 30 supports the rotating ring 72.

[0033] In order to increase the friction between the limiting rod 73 and the connecting tube 31, an extension ring 74 is connected to the end of the limiting rod 73. The extension ring 74 is also a hollow truncated cone structure, and the inner wall of the extension ring 74 fits the outer wall of the connecting tube 31. By increasing the friction, the vibration energy is attenuated.

[0034] A driving assembly 90 for driving the rotating ring 72 to rotate is located below the workbench 10 , and the workbench 10 is provided with a clearance groove 11 for the rotating ring 72 to extend out.

[0035] In one embodiment, referring to Figure 3 The driving assembly 90 for driving the rotating ring 72 to rotate includes a driven gear 91 and a driving gear 92, and a driving member 93 for driving the driving gear 92 to rotate. The driven gear 91 is fixedly sleeved on the outer wall of the rotating ring 72, and the driving member 93 is a motor. The motor output shaft and the driving gear 92 are coaxially fixedly connected. The driven gear 91 extends out of the workbench 10, so that the driven gear 91 and the driving gear 92 are meshed, and the driving gear 92 drives the driven gear 91 to rotate, thereby driving the rotating ring 72 to rotate. When the plate 100 is drilled, the driving assembly 90 can drive the rotating ring 72 to rotate continuously.

[0036] In one embodiment, referring to Figure 5 and Figure 6 The driving assembly 90 includes a disk 94 and a driving member 93 for driving the disk 94 to rotate. The disk 94 is located below the workbench 10 and a gap is left between the upper surface of the disk 94 and the lower surface of the workbench 10. The driving member 93 is a motor, and the motor output shaft is coaxially fixedly connected to the disk 94. A protrusion 75 is fixedly connected to the outer peripheral side of the rotating ring 72, and a push rod 95 is installed on the upper surface of the disk 94. The push rod 95 is a cylindrical rod, and the central axis of the push rod 95 extends along the radial direction of the disk 94. There are multiple push rods 95 evenly spaced along the axial direction of the disk 94. The rotating ring 72 includes a connecting portion and a protruding portion, and the connecting portion and the protruding portion are integrally formed. The connecting portion is connected to the limiting rod 73, and the protrusion 75 is installed on the protruding portion. The protruding portion extends out of the workbench 10 through the clearance groove 11. When the disk 94 rotates, the evenly distributed push rods 95 contact the protrusion 75 of the rotating ring 72 in turn, driving the rotating ring 72 to rotate at the same angle. This uniform driving method avoids the failure of vibration control caused by insufficient or excessive driving of individual swivels 72, thereby improving the overall shock absorption effect.

[0037] Therefore, there are two ways to drive the rotating ring 72 to rotate, one is continuous rotation and the other is intermittent rotation. If the mounting seat 30 is fixedly mounted on the workbench 10, both drive assemblies 90 can be used; if the position of the mounting seat 30 on the workbench 10 needs to be adjusted by sliding, the drive assembly 90 with intermittent drive is more suitable.

[0038] Reference Figure 7 The specific sliding adjustment method of the mounting seat 30 is as follows: a plurality of coaxial annular grooves 12 are provided on the upper surface of the workbench 10, the mounting seat 30 slides in the annular grooves 12, the clearance grooves 11 are located at the bottom of the annular grooves 12, both ends of the clearance grooves 11 are closed ends, one mounting seat 30 corresponds to one clearance groove 11, and the clearance grooves 11 limit the sliding stroke of the mounting seat 30. When the mounting seat 30 is positioned, a fixing part for fixing the mounting seat 30 is provided on the workbench 10.

[0039] Reference Figure 8 The fixing member is a screw rod 13, and a slider 14 is slidably connected in the ring groove 12. The slider 14 has a threaded hole, and the screw rod 13 passes through the support body 32 and is threadedly connected to the slider 14. When the nut of the screw rod 13 abuts against the upper surface of the lower end of the support body 32, the entire mounting seat 30 is fixed on the workbench 10, so that when the push rod 95 moves the protrusion 75, the mounting seat 30 does not move, and the rotating ring 72 can maintain a stable rotation state.

[0040] The implementation principle of a drilling machine for plate processing in the embodiment of the present application is as follows: By setting a plurality of adjustable mounting seats 30 on the workbench 10, the positions of the receiving plate 51 and the pressing plate 52 are flexibly adjusted by using the first adjusting rod 40 and the second adjusting rod 50 to adapt to plates 100 of different sizes, and the precise positioning of the plates 100 is achieved by using the positioning block 53. At the same time, a shock absorbing assembly 70 is introduced, including structures such as a connecting ring 71, a rotating ring 72 and a limiting rod 73, and the controllable rotation of the rotating ring 72 is used to generate a centrifugal damping effect to effectively attenuate the processing vibration. In addition, two driving assemblies 90 are designed to drive the rotating ring 72 to rotate, so as to realize the continuous or intermittent operation of the shock absorbing assembly 70, thereby improving the positioning accuracy of the drilling and the overall processing stability.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A drilling machine for plate processing, characterized in that: include: Workbench (10); A lifting mechanism (20) is installed on the workbench (10); The drill bit is drivingly connected to the lifting mechanism (20); A plurality of mounting seats (30) mounted on the workbench (10); A first adjustment rod (40) mounted on the mounting seat (30) for horizontal sliding movement; A second adjustment rod (50) is vertically slidable up and down on the first adjustment rod (40); A receiving plate (51) fixedly mounted on the lower end of the second adjusting rod (50); A pressure plate (52) slidably mounted on the second adjustment rod (50); a fixing assembly (80) disposed on the second adjusting rod (50) and used to drive the second adjusting rod (50) to be fixedly mounted on the first adjusting rod (40), and the pressing plate (52) to be fixedly mounted on the second adjusting rod (50); A shock absorbing assembly (70) is mounted on the mounting seat (30), the shock absorbing assembly (70) comprising a connecting ring (71) and a rotating ring (72), the first adjusting rod (40) being slidably mounted on the connecting ring (71) along its own axial direction, and the rotating ring (72) being rotatably mounted on the connecting ring (71); A driving assembly (90) is mounted on the workbench (10), and the driving assembly (90) is used to drive the rotating ring (72) to rotate.

2. A drilling machine for plate processing according to claim 1, characterized in that: The shock absorbing assembly (70) further comprises a limiting rod (73), the limiting rod (73) passing through the connecting ring (71), a plurality of limiting rods (73) being evenly distributed along the circumference of the connecting ring (71), two ends of the limiting rod (73) being respectively fixedly mounted on the rotating ring (72), and the two ends of the limiting rod (73) forming an angle, and the angle being located within the connecting ring (71).

3. A plate processing drilling machine according to claim 2, characterized in that: The mounting seat (30) comprises: The two connecting tubes (31) are hollow structures with openings at both ends, the first adjusting rod (40) passes through the connecting tube (31), a distance is left between the connecting ring (71) and the first adjusting rod (40), the connecting tube (31) is a truncated cone structure with openings at both ends, and the limiting rod (73) is attached to the outer wall of the diameter-changing section of the connecting tube (31); The two supporting bodies (32) are respectively fixedly connected to one of the connecting tubes (31), and the supporting bodies (32) are mounted on the workbench (10).

4. A drilling machine for plate processing according to claim 3, characterized in that: The ends of the plurality of limit rods (73) are simultaneously connected to an extension ring (74), and the inner wall of the extension ring (74) is fitted onto the outer wall of the connecting tube (31).

5. A drilling machine for plate processing according to claim 1, characterized in that: The mounting seat (30) is fixedly mounted on the workbench (10); the driving assembly (90) comprises a driven gear (91) and a driving gear (92) meshing with each other, and a driving member (93) driving the driving gear (92) to rotate; the driven gear (91) is sleeved on the outer wall of the rotating ring (72); and the driving assembly (90) and the mounting seat (30) correspond one to one.

6. A drilling machine for plate processing according to claim 1, characterized in that: The upper surface of the workbench (10) is provided with a plurality of coaxial annular grooves (12), the mounting seat (30) slides in the annular grooves (12), and a fixing member for fixing the mounting seat (30) is provided on the workbench (10); a clearance groove (11) is provided at the bottom of the annular groove (12), the rotating ring (72) partially extends out of the workbench (10) through the clearance groove (11), and the driving assembly (90) comprises a disc (94) and a driving member for driving the disc (94) to rotate The disc (94) is located below the workbench (10) and is spaced apart from the lower surface of the workbench (10). A push rod (95) is mounted on the disc (94). The central axis of the push rod (95) extends in the radial direction of the disc (94). The rotating ring (72) is provided with protrusions (75). The protrusions (75) are spaced apart along the circumference of the rotating ring (72). When the push rod (95) rotates with the disc (94), it contacts the protrusions (75).

7. A drilling machine for plate processing according to claim 6, characterized in that: A plurality of push rods (95) are evenly spaced and distributed along the circumference of the disk (94).

8. The drilling machine for plate processing according to claim 1, characterized in that: The fixing assembly (80) comprises two nuts (60), wherein the nuts (60) are threadedly connected to the second adjusting rod (50), one of the nuts (60) abuts against the lower surface of the first adjusting rod (40), and the other of the nuts (60) drives the pressure plate (52) to abut against the upper surface of the first adjusting rod (40).

9. A drilling machine for plate processing according to claim 1, characterized in that: A positioning block (53) is mounted on the receiving plate (51).

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