A plastic pipe perforator

Abstract

The utility model provides a kind of plastic pipe puncher, including frame and the power cylinder being connected on frame, the power shaft of power cylinder is connected with adjusting plate, punch rod is connected on adjusting plate, support plate and pressing plate are connected on frame, pressing plate is slidably connected between adjusting plate and support plate, first limiting recess is opened in the side of support plate of pressing plate, second limiting recess corresponding with first limiting recess is opened on support plate, limiting area for plastic pipe limiting is formed between first limiting recess and second limiting recess, first elastic member is arranged between pressing plate and adjusting plate, second elastic member is arranged between pressing plate and support plate, the axis of punch rod is set in dislocation with the axis of plastic pipe, first sliding recess that is communicated with first limiting recess is opened on the side wall of pressing plate, second sliding recess that is communicated with second limiting recess is opened on the side wall of support plate, reach the purpose of processing axis and the non-intersecting circular hole of plastic pipe axis.

Description

Technical Field

[0001] This utility model relates to a punching machine, and more particularly, to a punching machine for plastic pipes. Background Technology

[0002] Currently, a Chinese patent publication with authorization number CN219235517U discloses a drilling device for plastic pipes. This device mainly includes a worktable, support legs, a fixing plate, a first positioning structure, a mounting groove, and an adjustment assembly. The first positioning structure is used to fix the left end of the plastic pipe, the second positioning structure is used to fix the right end of the plastic pipe, and the auxiliary structure is used to fix the preset drilling position of the plastic pipe. By controlling a third cylinder to lower the lifting plate and start the drilling machine, the drill bit can pass through the connecting hole at the top of the fourth positioning component to drill a hole in the plastic pipe. The above technical solution aims to effectively prevent the drill bit from deviating during the drilling process, thereby reducing drilling errors.

[0003] However, the aforementioned existing technical solutions have limitations. They can only achieve the machining of circular through holes where the drill bit axis is perpendicular to the plastic tube axis, meaning the axis of the formed hole is perpendicular to the plastic tube axis. In practical applications, there are requirements to machine circular holes whose axes do not intersect with the plastic tube axis, while ensuring communication between the inner and outer walls of the plastic tube. The existing technical solutions clearly cannot meet these specific drilling requirements. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a plastic pipe punching machine to achieve the purpose of processing round holes whose axis does not intersect with the axis of the plastic pipe.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a plastic pipe punching machine, including a frame and a power cylinder connected to the frame. An adjusting plate is connected to the power shaft of the power cylinder, and a punching rod is connected to the adjusting plate. A support plate and a pressure plate are connected to the frame. The pressure plate is slidably connected to the frame and located between the adjusting plate and the support plate. A first limiting groove is formed on the side of the pressure plate facing the support plate. A second limiting groove corresponding to the first limiting groove is formed on the support plate. A limiting area for limiting the plastic pipe is formed between the first limiting groove and the second limiting groove. A first elastic element is provided between the pressure plate and the adjusting plate. A second elastic element is provided between the pressure plate and the support plate. The axis of the punching rod is offset from the axis of the plastic pipe. A first sliding groove communicating with the first limiting groove is formed on the side wall of the pressure plate. A second sliding groove communicating with the second limiting groove is formed on the side wall of the support plate. The punching rod is slidably connected to the second sliding groove along the first sliding groove and is used to punch holes in the plastic pipe.

[0006] To achieve the above technical solution, when the power cylinder is started, its power shaft drives the adjusting plate downwards. First, the first elastic element pushes the pressure plate downwards, causing it to move closer to the support plate and compressing the second elastic element, thus stably clamping the plastic tube placed in the limiting area. Subsequently, the punching rod connected to the adjusting plate continues to move downwards, the first elastic element continues to compress, and the punching rod punches holes in the plastic tube along the first and second sliding grooves. After punching is completed, the power shaft drives the adjusting plate to reset, and the pressure plate is reset by the elastic force of the second elastic element. By misaligning the axis of the punching rod with the axis of the plastic tube, specific holes whose axis does not intersect with the axis of the plastic tube can be stably and accurately processed, meeting specific processing requirements.

[0007] In a preferred embodiment of this utility model, the pressure plate includes a sliding part and an upper pressing part, and the support plate includes a fixed part and a lower pressing part. The sliding part is slidably connected to the frame along the height direction of the frame, the upper pressing part is slidably connected to the sliding part along the longitudinal direction of the frame, the fixed part is fixedly connected to the frame, and the lower pressing part is slidably connected to the fixed part along the longitudinal direction of the frame. The first limiting groove is formed on the side of the upper pressing part facing the lower pressing part, the second limiting groove is formed on the side of the lower pressing part facing the upper pressing part, the first sliding groove is formed on the side wall of the upper pressing part, and the second sliding groove is formed on the side wall of the lower pressing part.

[0008] To achieve the above technical solution, firstly, the upper and lower pressing sections, which can slide longitudinally along the frame, are positionally adjusted to precisely accommodate plastic tubes of different diameters. Furthermore, the punching rod can adjust the punching depth of the plastic tube. After the upper and lower pressing sections are in place, the power cylinder drives the sliding section to descend along the frame height, firmly clamping the plastic tube between the upper and lower pressing sections and ultimately completing the eccentric punching. The technical effect achieved by this design is that by separating the vertical clamping action from the horizontal adjustment action of the fixture, the versatility and adaptability of the equipment are greatly enhanced. It is no longer limited to processing workpieces with a single or small range of tube diameters, but can flexibly and conveniently switch between and stably clamp various specifications of plastic tubes, significantly improving the equipment's applicability and processing flexibility.

[0009] In a preferred embodiment of this utility model, a first slide rod is fixedly connected to the sliding part, and a first screw is rotatably connected to the sliding part. The axis of the first slide rod is parallel to the axis of the first screw, and the axis of the first screw is arranged along the longitudinal direction of the frame. The upper pressing part is slidably connected to the first slide rod and threadedly connected to the first screw.

[0010] To achieve the above technical solution, by rotating the first screw, the upper pressure unit can move precisely and stably linearly along the direction of the first slide rod. This structure provides fine adjustment capability for the positioning and drilling of plastic tubes, ensuring the accuracy of the drilling position and thus improving drilling precision. Simultaneously, due to the self-locking characteristic of the threaded connection, the upper pressure unit can reliably maintain its position after adjustment, avoiding displacement or vibration caused by force during drilling, further enhancing the stability and reliability of the equipment.

[0011] In a preferred embodiment of this utility model, a second slide rod is fixedly connected to the fixing part, and a second screw is rotatably connected to the fixing part. The axis of the second slide rod is parallel to the axis of the second screw, and the axis of the second screw is arranged along the longitudinal direction of the frame. The pressing part is slidably connected to the second slide rod and threadedly connected to the second screw.

[0012] To achieve the above technical solution, by rotating the second screw, the pressing part can move precisely and stably linearly along the direction of the second slide rod. This provides bidirectional, fine-grained clamping adjustment capability for positioning the plastic tube, ensuring that the plastic tube can be accurately centered or positioned at the preset punching position before punching. The self-locking characteristic of the threaded connection ensures that the pressing part can firmly fix the plastic tube after adjustment, preventing displacement during punching, thereby enhancing the stability of the equipment and the reliability of punching.

[0013] As a preferred embodiment of this utility model, the sliding part is provided with an anti-detachment groove on the side facing the adjustment plate, an anti-detachment ring is fixedly connected to the inner wall of the anti-detachment groove, an anti-detachment bolt is provided in the anti-detachment groove, the anti-detachment bolt is threadedly connected to the upper pressure part and abuts against the anti-detachment ring, and the length direction of the anti-detachment groove and the anti-detachment ring are both parallel to the axial direction of the first sliding rod.

[0014] To achieve the above technical solution, when the anti-detachment bolt is loosened and the upper pressure part moves longitudinally along the frame on the first slide bar, if the upper pressure part attempts to detach from the sliding part for some reason, the anti-detachment bolt will collide with the anti-detachment ring, thereby effectively preventing the upper pressure part from falling off; in addition, tightening the anti-detachment bolt and making the anti-detachment bolt collide with the anti-detachment ring makes the upper pressure part more stable on the sliding part.

[0015] As a preferred embodiment of this utility model, the side wall of the adjusting plate is provided with a plurality of positioning holes, and the side of the adjusting plate facing the pressure plate is provided with a fixing hole communicating with the positioning hole. The punching rod passes through the fixing hole, and the positioning hole is internally threaded with a positioning bolt that abuts against the outer wall of the punching rod. The plurality of fixing holes are arranged along the transverse direction of the frame, and the first sliding groove and the second sliding groove are each provided with a plurality of holes.

[0016] To achieve the above technical solution, on the one hand, by loosening the positioning bolts, the operator can fix the punching rod in any one of the multiple fixing holes, thereby enabling punching at different lateral positions of the plastic tube, greatly enhancing the adaptability and versatility of the equipment. On the other hand, this design also allows for a punching rod to be installed in each fixing hole. In this case, when the power cylinder drives the adjusting plate to descend, multiple punching rods will simultaneously punch the plastic tube along their respective first and second sliding grooves, thereby achieving simultaneous multi-hole processing and significantly improving punching efficiency and production capacity.

[0017] As a preferred embodiment of this utility model, a support platform is provided on the lower surface of the frame, the support platform supports the frame by support feet, a collection groove is provided on the support platform, and a connecting groove communicating with the collection groove is provided on the frame. The projections of the plurality of second sliding grooves on the support platform are all located inside the connecting groove, and the projection of the connecting groove on the support platform is located inside the collection groove.

[0018] To achieve the above technical solution, during the punching process, after the punching rod penetrates the plastic tube and completes the punching, the resulting waste material will fall downwards due to the movement of the punching rod or gravity. Since the projections of multiple second sliding grooves on the support platform are all located inside the connecting groove, and the projection of the connecting groove on the support platform is located inside the collecting groove, this means that all waste material falling from the punching position can smoothly pass through the space below the second sliding groove, enter the connecting groove, and eventually collect in the collecting groove.

[0019] As a preferred embodiment of this utility model, a sliding plate is fixedly connected to the side wall of the frame. The sliding plate is arranged laterally along the frame. A limiting plate for contacting the end of the plastic tube is slidably connected to the sliding plate. A fixing bolt is threadedly connected to the limiting plate, and the fixing bolt is pressed against the sliding plate.

[0020] To achieve the above technical solution, when the operator needs to adjust the drilling length of the plastic tube, they can first loosen the threaded fixing bolt on the limiting plate. At this point, the limiting plate can slide freely on the sliding plate. The operator places the end of the plastic tube against the limiting plate and moves the limiting plate to a suitable lateral position according to the preset drilling position requirements, thereby determining the longitudinal drilling start or end point of the plastic tube. Once the limiting plate is positioned, the fixing bolt is tightened to ensure a tight fit with the sliding plate, thus firmly locking the limiting plate in that position. Through the adjustment and fixing of the limiting plate, it can be ensured that the longitudinal position of each plastic tube relative to the punch rod is consistent during drilling, thereby improving the accuracy of the drilling position and the repeatability of mass production. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the external structure of this utility model; Figure 2 This is a schematic diagram illustrating the position of the first sliding rod; Figure 3 To illustrate the structure of the limiting plate; Figure 4 A schematic diagram showing the location of the fixing holes; Figure 5 This is a schematic diagram illustrating the structure of the plastic tube after punching.

[0022] Reference numerals: 1. Power cylinder; 2. Frame; 3. Adjusting plate; 4. Punching rod; 5. Positioning hole; 6. Fixing hole; 7. Column; 8. Pressure plate; 9. Sliding part; 10. Upper pressing part; 11. First sliding rod; 12. First screw; 13. First limiting groove; 14. First sliding groove; 15. Support plate; 16. Fixing part; 17. Lower pressing part; 18. Second sliding rod; 19. Second screw; 20. Second limiting groove; 21. Second sliding groove; 22. First elastic element; 23. Second elastic element; 24. Anti-detachment groove; 25. Anti-detachment ring; 26. Anti-detachment bolt; 27. Support platform; 28. Support foot; 29. ​​Collection trough; 30. Slide plate; 31. Limiting plate; 32. Fixing bolt. Detailed Implementation

[0023] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.

[0024] A plastic pipe punching machine includes a frame 2 and a power cylinder 1 connected to the frame 2. An adjusting plate 3 is connected to the power shaft of the power cylinder 1. The power cylinder 1 is a cylinder and is vertically arranged, while the adjusting plate 3 is horizontally arranged.

[0025] A punching rod 4 is connected to the adjusting plate 3. Three positioning holes 5 are provided on the side wall of the adjusting plate 3, arranged transversely along the frame 2. A fixing hole 6 communicating with the positioning holes 5 is provided on the lower surface of the adjusting plate 3, and the punching rod 4 passes through the fixing hole 6. One fixing hole 6 corresponds to one positioning hole 5. A positioning bolt is threaded into the positioning hole 5, abutting against the outer wall of the punching rod 4. The positioning bolt is a set screw, not shown in the figure.

[0026] A vertically arranged column 7 is fixedly connected to the frame 2, that is, the column 7 is arranged along the height direction of the frame 2. There are two columns 7. The adjusting plate 3 is slidably connected to the column 7, and the lower end of the column 7 is fixedly connected to the support plate 15. The pressure plate 8 is slidably connected to the column 7 and is located between the adjusting plate 3 and the support plate 15.

[0027] The pressure plate 8 includes a sliding part 9 and an upper pressure part 10. The sliding part 9 is slidably connected to the column 7. A first slide rod 11 is fixedly connected to the sliding part 9, and a first screw 12 is rotatably connected to the sliding part 9 via a bearing. The axis of the first slide rod 11 is parallel to the axis of the first screw 12, and the axis of the first screw 12 is arranged along the longitudinal direction of the frame 2, that is, the first screw 12 is arranged horizontally. The upper pressure part 10 is slidably connected to the first slide rod 11 and threadedly connected to the first screw 12.

[0028] A first limiting groove 13 is formed on the lower surface of the upper pressing part 10, and the first limiting groove 13 is arranged along the transverse direction of the frame 2. Three first sliding grooves 14 are formed on the side wall of the upper pressing part 10, communicating with the first limiting grooves 13, and are arranged along the transverse direction of the frame 2. Each sliding groove corresponds to one fixing hole 6.

[0029] The support plate 15 includes a fixing part 16 and a pressing part 17. The fixing part 16 is fixedly connected to the frame 2 and located at the lower end of the column 7. The pressing part 17 is slidably connected to the fixing part 16 along the longitudinal direction of the frame 2. A second slide rod 18 is fixedly connected to the fixing part 16, and a second screw 19 is rotatably connected to the fixing part 16. The axis of the second slide rod 18 is parallel to the axis of the second screw 19. The axis of the second screw 19 is arranged along the longitudinal direction of the frame 2. The pressing part 17 is slidably connected to the second slide rod 18 and threadedly connected to the second screw 19.

[0030] A second limiting groove 20 is formed on the side of the lower pressing part 17 facing the upper pressing part 10, and the second limiting groove 20 corresponds to the first limiting groove 13. A limiting area for limiting the plastic tube is formed between the first limiting groove 13 and the second limiting groove 20.

[0031] A second sliding groove 21 communicating with the second limiting groove 20 is provided on the side wall of the pressing part 17. Three second sliding grooves 21 are provided, and the three second sliding grooves 21 are arranged along the transverse direction of the frame 2. One fixing hole 6, one first sliding groove 14, and one second sliding groove 21 correspond to each other.

[0032] The punching rod 4 is slidably connected to the second sliding groove 21 along the first sliding groove 14 and is used to punch holes in the plastic tube. The axis of the punching rod 4 is offset from the axis of the plastic tube located in the limiting area.

[0033] A first annular groove is formed on the upper surface of the sliding part 9. The first elastic member 22 is sleeved on the column 7, and the lower end of the first elastic member 22 is placed in the first annular groove. The upper end of the first elastic member 22 is used to abut against the lower surface of the adjusting plate 3. The first elastic member 22 is a spring.

[0034] A second annular groove is formed on the upper surface of the fixing part 16. The second elastic member 23 is sleeved on the column 7, and the lower end of the second elastic member 23 is placed in the second annular groove. The upper end of the second elastic member 23 is used to abut against the lower surface of the sliding part 9. The second elastic member 23 is a spring.

[0035] The elasticity of the first elastic element 22 is greater than that of the second elastic element 23.

[0036] Two anti-detachment grooves 24 are provided on the side of the sliding part 9 facing the adjusting plate 3. An anti-detachment ring 25 is fixedly connected to the inner wall of the anti-detachment groove 24. An anti-detachment bolt 26 is provided in the anti-detachment groove 24, which is threadedly connected to the upper pressing part 10 and abuts against the anti-detachment ring 25. The length direction of the anti-detachment groove 24 and the anti-detachment ring 25 is parallel to the axial direction of the first sliding rod 11.

[0037] A support platform 27 is fixedly connected to the lower surface of the frame 2. The support platform 27 supports the frame 2 via four support legs 28, which are vertically arranged. A collection groove 29 is provided in the middle of the support platform 27. A connecting groove communicating with the collection groove 29 is provided on the frame 2. The projections of the multiple second sliding grooves 21 on the support platform 27 are all located inside the connecting groove, and the projections of the connecting groove on the support platform 27 are located inside the collection groove 29.

[0038] A slide plate 30 is fixedly connected to the side wall of the frame 2. The slide plate 30 is arranged laterally along the frame 2. A limiting plate 31 for contacting the end of the plastic tube is slidably connected to the slide plate 30. A fixing bolt 32 is threadedly connected to the limiting plate 31, and the fixing bolt 32 abuts against the slide plate 30.

[0039] The process of using this plastic pipe punching machine is as follows: First, during the drilling preparation stage, the operator makes a series of adjustments based on the size of the plastic tube to be processed and the required drilling position. By loosening the fixing bolt 32, the operator can slide the limiting plate 31 on the slide plate 30 set laterally on the side wall of the frame 2, so that the limiting plate 31 abuts against the end of the plastic tube, thereby accurately determining the starting position of the drilling in the longitudinal direction; after fixing the position, tighten the fixing bolt 32 to lock the limiting plate 31. At the same time, according to the required lateral drilling position, the operator can loosen the positioning bolt, select one of the multiple positioning holes 5 opened on the side wall of the adjusting plate 3, move the punching rod 4 to the corresponding fixing hole 6, and tighten it with the positioning bolt to ensure that the axis of the punching rod 4 is misaligned with the axis of the plastic tube located in the limiting area. In addition, in order to accurately clamp the plastic tube, the operator also needs to adjust the longitudinal position of the upper pressing part 10 and the lower pressing part 17. By rotating the first screw 12, the upper pressing part 10 will slide precisely along the axial direction of the first slide bar 11 to adjust the position of the first limiting groove 13 opened on the lower surface of the upper pressing part 10; similarly, by rotating the second screw 19, the lower pressing part 17 will slide precisely along the longitudinal direction of the second slide bar 18 to adjust the position of the second limiting groove 20 opened on the side of the lower pressing part 17 facing the upper pressing part 10, so that the first limiting groove 13 and the second limiting groove 20 can be precisely aligned to form a limiting area for limiting the plastic tube and to securely clamp the plastic tube therein.

[0040] Once all positioning and clamping adjustments are complete, the punching process begins. The power shaft of the vertically mounted power cylinder 1 connected to the frame 2 actuates, causing the horizontally mounted adjusting plate 3 to move downwards. As the adjusting plate 3 descends, the punching rod 4 also moves downwards. As the adjusting plate 3 moves downwards, the first elastic element 22 begins to be compressed, its elastic force acting between the lower surface of the adjusting plate 3 and the first annular groove on the upper surface of the sliding part 9. As the adjusting plate 3 continues to descend, the second elastic element 23 begins to be compressed, its elastic force acting between the lower surface of the sliding part 9 and the second annular groove on the upper surface of the fixing part 16. Since the elasticity of the first elastic element 22 is greater than that of the second elastic element 23, this ensures that the pressure plate 8 can first firmly press the plastic tube, and then the punching rod 4 continues to descend.

[0041] The punching rod 4 slides along the first sliding groove 14 and the second sliding groove 21, and finally penetrates the plastic tube to complete the punching operation. Since the axis of the punching rod 4 is misaligned with the axis of the plastic tube located in the limiting area, a circular hole that does not intersect with the axis of the plastic tube can be formed, and the inner wall and outer wall of the plastic tube can be connected.

[0042] After punching is completed, the power cylinder 1 returns, causing the adjusting plate 3 to rise, and the punching rod 4 also rises. During the rising process, the compressed first elastic element 22 and second elastic element 23 release energy, helping the pressure plate 8 to reset.

[0043] Finally, regarding waste collection, plastic waste generated during the punching process will fall downwards from the punched area. Since the projections of multiple second sliding grooves 21 on the support platform 27 are all located inside the connecting groove, and the projection of the connecting groove on the support platform 27 is located inside the collection groove 29, all the falling waste will pass through these structures and eventually collect into the collection groove 29 opened in the middle of the support platform 27, realizing automatic waste collection and maintaining a clean working environment.

[0044] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A plastic pipe drilling machine, comprising a frame (2) and a power cylinder (1) connected to the frame (2), characterized in that: A regulating plate (3) is connected to the power shaft of the power cylinder (1), a punching rod (4) is connected to the regulating plate (3), a support plate (15) and a pressing plate (8) are connected to the frame (2), the pressing plate (8) is slidably connected to the frame (2) and is located between the regulating plate (3) and the support plate (15), a first limiting groove (13) is formed on one side of the pressing plate (8) facing the support plate (15), a second limiting groove (20) corresponding to the first limiting groove (13) is formed on the support plate (15), a limiting area for limiting the plastic pipe is formed between the first limiting groove (13) and the second limiting groove (20), a first elastic member (22) is arranged between the pressing plate (8) and the regulating plate (3), a second elastic member (23) is arranged between the pressing plate (8) and the support plate (15), the axis of the punching rod (4) is arranged offset from the axis of the plastic pipe, a first sliding groove (14) communicating with the first limiting groove (13) is formed on the side wall of the pressing plate (8), a second sliding groove (21) communicating with the second limiting groove (20) is formed on the side wall of the support plate (15), and the punching rod (4) is slidably connected to the second sliding groove (21) along the first sliding groove (14) and is used for punching the plastic pipe.

2. The plastic pipe drilling machine according to claim 1, wherein: The pressing plate (8) includes a sliding portion (9) and an upper pressing portion (10), the support plate (15) includes a fixing portion (16) and a lower pressing portion (17), the sliding portion (9) is slidably connected to the frame (2) along the height direction of the frame (2), the upper pressing portion (10) is slidably connected to the sliding portion (9) along the longitudinal direction of the frame (2), the fixing portion (16) is fixedly connected to the frame (2), the lower pressing portion (17) is slidably connected to the fixing portion (16) along the longitudinal direction of the frame (2), the first limiting groove (13) is formed on one side of the upper pressing portion (10) facing the lower pressing portion (17), the second limiting groove (20) is formed on one side of the lower pressing portion (17) facing the upper pressing portion (10), the first sliding groove (14) is formed on the side wall of the upper pressing portion (10), and the second sliding groove (21) is formed on the side wall of the lower pressing portion (17).

3. The plastic pipe drilling machine according to claim 2, wherein: A first sliding rod (11) is fixedly connected to the sliding portion (9), a first screw rod (12) is rotatably connected to the sliding portion (9), the axis of the first sliding rod (11) is parallel to the axis of the first screw rod (12), the axis of the first screw rod (12) is arranged along the longitudinal direction of the frame (2), and the upper pressing portion (10) is slidably connected to the first sliding rod (11) and is threadedly connected to the first screw rod (12).

4. A plastic pipe drilling machine according to claim 2 or 3, characterized in that: A second sliding rod (18) is fixedly connected to the fixing portion (16), a second screw rod (19) is rotatably connected to the fixing portion (16), the axis of the second sliding rod (18) is parallel to the axis of the second screw rod (19), the axis of the second screw rod (19) is arranged along the longitudinal direction of the frame (2), and the lower pressing portion (17) is slidably connected to the second sliding rod (18) and is threadedly connected to the second screw rod (19).

5. The plastic pipe drilling machine according to claim 3, characterized in that: On one side of the sliding part (9) facing the adjusting plate (3), an anti - detachment groove (24) is formed. An anti - detachment ring (25) is fixedly connected to the inner wall of the anti - detachment groove (24). An anti - detachment bolt (26) is arranged in the anti - detachment groove (24). The anti - detachment bolt (26) is threadedly connected to the upper pressing part (10) and abuts against the anti - detachment ring (25). The length directions of the anti - detachment groove (24) and the anti - detachment ring (25) are both parallel to the axial direction of the first sliding rod (11).

6. The plastic pipe drilling machine according to claim 1, characterized in that: A plurality of positioning holes (5) are formed in the side wall of the adjusting plate (3). A fixing hole (6) communicating with the positioning holes (5) is formed on one side of the adjusting plate (3) facing the pressing plate (8). The punching rod (4) passes through the fixing hole (6). A positioning bolt that abuts against the outer wall of the punching rod (4) is threadedly connected in the positioning hole (5). The plurality of fixing holes (6) are arranged horizontally along the frame (2). Both the first sliding groove (14) and the second sliding groove (21) are provided with a plurality of them.

7. The plastic pipe drilling machine according to claim 6, characterized in that: A support platform (27) is arranged on the lower surface of the frame (2). The support platform (27) supports the frame (2) through support feet (28). A collection groove (29) is formed on the support platform (27). A communication groove communicating with the collection groove (29) is formed on the frame (2). The projections of the plurality of second sliding grooves (21) on the support platform (27) are all located inside the communication groove. The projection of the communication groove on the support platform (27) is located inside the collection groove (29).

8. The plastic pipe drilling machine according to claim 1, characterized in that: A sliding plate (30) is fixedly connected to the side wall of the frame (2). The sliding plate (30) is arranged horizontally along the frame (2). A limiting plate (31) for abutting against the end of the plastic pipe is slidably connected to the sliding plate (30). A fixing bolt (32) is threadedly connected to the limiting plate (31). The fixing bolt (32) abuts against the sliding plate (30).

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