Numerical control hydraulic flat plate high-speed punching and drilling compound machine

Abstract

The invention relates to the technical field of flat plate punching and drilling, and discloses a numerical control hydraulic flat plate high-speed punching and drilling compound machine which comprises a first base, a compound mechanism, a first horizontal moving device and a second horizontal moving device, the top of the first base is fixedly connected with a workbench, and the outer wall of the first base is fixedly connected with the first horizontal moving device. The inner wall of the sliding U-shaped plate is movably connected with a first horizontal moving device, the left side of the top of the sliding U-shaped plate is fixedly connected with a downward pressing assembly, the right side of the top of the sliding U-shaped plate is fixedly connected with an adjusting assembly, and by arranging a switching assembly, the working mode of the equipment can be adjusted in a switching mode. When the working mode is changed, the machining positions of the equipment are located at the same position, the situation that the punching device and the drilling device are separately arranged at two positions, and consequently machining of the equipment cannot be accurately positioned is avoided, and the machining effect of the equipment is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of flat punching and drilling, and specifically to a numerically controlled hydraulic flat high-speed punching and drilling compound machine. Background Technique

[0002] In modern industrial production, machining technologies are constantly developing and progressing. With the increasing requirements of the manufacturing industry for the machining accuracy, efficiency, and versatility of components, traditional single-function machining equipment has become difficult to meet complex production needs. For sheet metal processing, punching and drilling are common machining operations. In the past, punching presses and drilling machines were usually separate devices, performing punching and drilling operations respectively.

[0003] The patent application with the application number CN201520478222.4 discloses a numerically controlled hydraulic flat high-speed punching and drilling compound machine, including: a bed body, a workbench arranged on the bed body, a hydraulic punching unit vertically installed on the bed body and above the workbench, a spindle box vertically slidably installed on the bed body through guide rails and above the workbench, a power device for driving the spindle box to move up and down, a spindle vertically rotatably installed in the spindle box, a tool holder installed below the spindle, and a tool bar installed below the tool holder. The spindle is in transmission connection with a driving motor. Place the sheet material to be processed with holes on the workbench. For thin sheets, punching processing can be carried out through the hydraulic punching unit. For thick sheets, the driving motor drives the spindle to drive the tool holder to rotate, so that the tool bar rotates to realize drilling. During drilling, the power device drives the spindle box to move down, so that the drilling depth can be controlled, thus realizing convenient selection of punching processing or drilling processing according to the thickness of the sheet material, and improving the processing efficiency.

[0004] When existing equipment is in use, most of them simply combine a drilling machine and a punching machine together, which results in two sets of calculation methods for the processing positions of the sheet material by the equipment. One is used to detect the drilling position, and the other is used to detect the punching position. This makes the operation of the equipment too complex, prone to errors and failures, and is not conducive to the processing of the sheet material by the equipment. Summary of the Invention

[0005] The purpose of the present invention is to provide a numerically controlled hydraulic flat high-speed punching and drilling compound machine to solve the problems raised in the above background technique.

[0006] To solve the above technical problems, the present invention provides the following technical solution: A numerically controlled hydraulic flat high-speed punching and drilling compound machine, including a first base, the top of the first base is fixedly connected with a workbench, the outer wall of the first base is fixedly connected with a first horizontal moving device, and further includes: Composite mechanism, the composite mechanism plate slides the U-shaped plate, the inner wall of the sliding U-shaped plate is movably connected to the horizontal moving device I, the left side of the top of the sliding U-shaped plate is fixedly connected with a pressing-down component, and the right side of the top of the sliding U-shaped plate is fixedly connected with an adjusting component.

[0007] According to the above technical solution, the pressing-down component includes a second base, the bottom of the second base is fixedly connected to the sliding U-shaped plate, the top of the second base is fixedly connected with a vertical moving device, the side of the vertical moving device close to the adjusting component is movably connected to a second horizontal moving device, the bottom of the second horizontal moving device is movably connected to a moving component, and one end of the second horizontal moving device away from the vertical moving device is fixedly connected with a push rod, where the push rod is used to apply pressure to the top of the third sliding column.

[0008] According to the above technical solution, the moving component includes a first sliding seat, the outer wall of the first sliding seat is movably connected to the second horizontal moving device, the bottom of the first sliding seat is fixedly connected with a first connecting plate, the side of the bottom of the first connecting plate close to the adjusting component is fixedly connected with a pressure column, and the side of the first connecting plate away from the pressure column is fixedly connected with a support plate, where the support plate is used to strengthen the strength of the first connecting plate and prevent the first connecting plate from bending, and the top of the support plate is fixedly connected to the first sliding seat.

[0009] According to the above technical solution, a positioning column is movably connected to the inner wall of the first connecting plate, a first round plate is fixedly connected to one end of the positioning column away from the pressure column, a first spring is sleeved on the outer wall of the positioning column, one end of the first spring is fixedly connected to the first round plate, and the end of the first spring away from the first round plate is fixedly connected to the first connecting plate. When the equipment needs to switch the processing structure, the moving component will move outward. At this time, as the moving component moves, the equipment will limit the moving range of the processing mechanism, and then disconnect the connection between the moving component and the processing structure to ensure the smooth switching of the processing equipment of the equipment and the stability of the equipment operation.

[0010] According to the above technical solution, the adjusting component includes a third base, the bottom of the third base is fixedly connected to the sliding U-shaped plate, the top of the third base is fixedly connected with a front-back moving device, a switching component is movably connected to the inner wall of the front-back moving device, the front-back moving device controls the front-back movement of the switching component to move the corresponding processing structure directly above the first track, a first track is fixedly connected to the side of the front-back moving device close to the pressing-down component, a sliding groove is opened on the inner wall of the first track, and a first sliding column is fixedly connected to the inner wall of the sliding groove.

[0011] According to the above technical solution, a first sliding column is movably connected to the outer wall of the first sliding column. A second spring is sleeved on the outer wall of the first sliding column. The top of the second spring is fixedly connected to the first slider, and the bottom of the second spring is fixedly connected to the chute. A T-shaped plate is fixedly connected to the outer wall of the first slider. Hollow plates are fixedly connected to both ends of the T-shaped plate. The inner wall of the first track is movably connected to the hollow plate. Before the moving component is connected to the processing structure, the T-shaped plate is restricted by the locking column, preventing the processing structure from descending. After connection, the height of the processing structure is controlled by the moving component.

[0012] According to the above technical solution, a stress plate is provided on one side of the third base close to the moving component. Sliding columns are fixedly connected to the upper and lower ends of the stress plate close to the base side. The outer walls of the sliding columns are movably connected to the third base. Circular plates are fixedly connected to the ends of the two sliding columns away from the stress plate. Springs are fixedly connected to the sides of the two circular plates away from the sliding columns. The ends of the two springs away from the circular plates are fixedly connected to the third base. A connecting column is fixedly connected to the side of the upper circular plate away from the sliding column. A second connecting plate is fixedly connected to the end of the connecting column away from the circular plate. A locking column is fixedly connected to the end of the second connecting plate away from the connecting column. The outer wall of the locking column is movably connected to the hollow plate. Before the moving component is connected to the processing structure, the position of the equipment processing structure is fixed. After the moving component is connected to the processing structure, the restriction on the processing structure is automatically released, ensuring the smooth switching of the processing equipment of the equipment and guaranteeing the stability of the equipment operation.

[0013] According to the above technical solution, the switching component includes a fourth base. A second slider is fixedly connected to the bottom of the fourth base. The outer wall of the second slider is movably connected to the front and rear moving device. Railways are fixedly connected to the left and right ends of the fourth base close to the moving component side. A second sliding seat is movably connected to the inner walls of the two railways. By setting the switching component, the equipment can adjust the working mode in a switching manner. While changing the working mode, the processing position of the equipment is at the same place, avoiding inaccurate positioning of equipment processing caused by setting the punching device and the drilling device in two separate places, thereby ensuring the processing effect of the equipment. Positioning holes are provided on the sides of the two sliding seats away from the railways. A motor is fixedly connected to the inner wall of the sliding seat on the right side. The output end of the motor is fixedly connected to a drill bit. A sleeve is fixedly connected to the inner wall of the sliding seat on the left side. A third sliding column is movably connected to the inner wall of the sleeve. A punching drill bit is fixedly connected to the bottom of the third sliding column. A fourth spring is fixedly connected to the bottom of the third sliding column. The bottom of the fourth spring is fixedly connected to the sleeve.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. The present invention can adjust the working mode of the device in a switching manner by setting a switching component. While changing the working mode, the processing position of the device remains the same, avoiding the inaccurate positioning of the device processing caused by setting the punching device and the drilling device in two different places, thereby ensuring the processing effect of the device.

[0015] 2. By setting an adjusting component, when the device switches the processing mode, the present invention ensures that the processing mechanism does not automatically fall along the track, ensuring the smoothness of the device in switching the processing equipment and guaranteeing the stability of the device operation.

[0016] 3. By setting an adjusting component, before the movable component is connected to the processing structure, the position of the device processing structure is fixed, and after the movable component is connected to the processing structure, the restriction on the processing structure is automatically released, ensuring the smoothness of the device in switching the processing equipment and guaranteeing the stability of the device operation.

[0017] 4. By setting a movable component, when the device needs to switch the processing structure, the movable component moves outward. At this time, as the movable component moves, the device restricts the moving range of the processing mechanism, and then disconnects the connection between the movable component and the processing structure, ensuring the smoothness of the device in switching the processing equipment and guaranteeing the stability of the device operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings are used to provide a further understanding of the present invention and form a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the composite mechanism of the present invention; Figure 3 is a schematic diagram of the pressing component of the present invention; Figure 4 is a schematic diagram of the movable component of the present invention; Figure 5 is a schematic diagram of the adjusting component of the present invention; Figure 6 is a schematic diagram of the bottom structure of the adjusting component of the present invention; Figure 7 is a cross-sectional view of the bottom structure of the adjusting component of the present invention; Figure 8 is a schematic diagram of the T-shaped plate of the present invention; Figure 9 is a schematic diagram of the internal parts of the adjusting component of the present invention; Figure 10 is a schematic diagram of the switching component of the present invention; Figure 11It is a schematic diagram of the external structure of the switching component of the present invention; Figure 12 It is a second cross-sectional view of the sliding seat of the present invention; In the figure: 1. The first base; 101. The workbench; 102. The first horizontal moving device; 2. The composite mechanism; 201. The sliding U-shaped plate; 21. The pressing component; 211. The second base; 212. The vertical moving device; 213. The second horizontal moving device; 214. The push rod; 22. The movable component; 221. The first sliding seat; 222. The first connecting plate; 223. The pressure column; 224. The support plate; 225. The positioning column; 226. The first circular plate; 227. The first spring; 23. The adjusting component; 231. The third base; 232. The front and rear moving device; 233. The first track; 234. The chute; 235. The first sliding column; 236. The first slider; 237. The second spring; 238. The T-shaped plate; 239. The hollow plate; 2310. The force-bearing plate; 2311. The second sliding column; 2312. The second circular plate; 2313. The third spring; 2314. The connecting column; 2315. The second connecting plate; 2316. The locking column; 24. The switching component; 241. The fourth base; 242. The second slider; 243. The second track; 244. The second sliding seat; 245. The positioning hole; 246. The motor; 247. The drill bit; 248. The sleeve; 249. The third sliding column; 2410. The punching head; 2411. The fourth spring. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0020] Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as a limitation of the present invention.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0022] Example 1: Refer to Figures 1 - 4, the present invention provides a technical solution: a numerical control hydraulic flat high-speed punching and drilling compound machine, including a first base 1. A workbench 101 is fixedly connected to the top of the first base 1. A first horizontal moving device 102 is fixedly connected to the outer wall of the first base 1. It further includes: A compound mechanism 2, which includes a sliding U-shaped plate 201 of the compound mechanism 2. The inner wall of the sliding U-shaped plate 201 is movably connected to the first horizontal moving device 102. A downward pressing component 21 is fixedly connected to the left side of the top of the sliding U-shaped plate 201, and an adjusting component 23 is fixedly connected to the right side of the top of the sliding U-shaped plate 201.

[0023] The downward pressing component 21 includes a second base 211. The bottom of the second base 211 is fixedly connected to the sliding U-shaped plate 201. A vertical moving device 212 is fixedly connected to the top of the second base 211. A second horizontal moving device 213 is movably connected to the side of the vertical moving device 212 close to the adjusting component 23. An active component 22 is movably connected to the bottom of the second horizontal moving device 213. A push rod 214 is fixedly connected to the end of the second horizontal moving device 213 far from the vertical moving device 212. When the device drills the plate, the push rod 214 does not work. When the device punches the plate, the push rod 214 extends downward to apply pressure to the top of the drilling mechanism.

[0024] The active component 22 includes a first sliding seat 221. The outer wall of the first sliding seat 221 is movably connected to the second horizontal moving device 213. A first connecting plate 222 is fixedly connected to the bottom of the first sliding seat 221. A pressure column 223 is fixedly connected to the side of the bottom of the first connecting plate 222 close to the adjusting component 23. A support plate 224 is fixedly connected to the side of the first connecting plate 222 far from the pressure column 223. The top of the support plate 224 is fixedly connected to the first sliding seat 221. A positioning column 225 is movably connected to the inner wall of the first connecting plate 222. A first circular plate 226 is fixedly connected to the end of the positioning column 225 far from the pressure column 223. A first spring 227 is sleeved on the outer wall of the positioning column 225. One end of the first spring 227 is fixedly connected to the first circular plate 226, and the end of the first spring 227 far from the first circular plate 226 is fixedly connected to the first connecting plate 222.

[0025] The working principle of this embodiment is as follows: When the plate needs to be processed, the corresponding processing mechanism is moved to the corresponding position through the adjusting component 23. Then, the second horizontal moving device 213 is started to drive the first sliding seat 221 to move towards the processing structure. As the first sliding seat 221 moves, the first connecting plate 222 is driven to move. The moving first connecting plate drives the positioning column 225 to connect with the processing structure, and the pressure column 223 is used to release the restriction of the adjusting component 23 on the processing mechanism. Then, the processing mechanism is started, and the processing structure is driven by the vertical moving device 212 to process the plate.

[0026] Embodiment 2: On the basis of Embodiment 1, please refer toFigures 5 - 12 , the adjusting component 23 includes a third base 231. The bottom of the third base 231 is fixedly connected to the sliding U-shaped plate 201. A front-back moving device 232 is fixedly connected to the top of the third base 231. A switching component 24 is movably connected to the inner wall of the front-back moving device 232. A first track 233 is fixedly connected to the side of the front-back moving device 232 close to the pressing component 21. A chute 234 is provided in the inner wall of the first track 233. A first sliding column 235 is fixedly connected to the inner wall of the chute 234. A first slider 236 is movably connected to the outer wall of the first sliding column 235. A second spring 237 is sleeved on the outer wall of the first sliding column 235. The top of the second spring 237 is fixedly connected to the first slider 236, and the bottom of the second spring 237 is fixedly connected to the chute 234. A T-shaped plate 238 is fixedly connected to the outer wall of the first slider 236. Hollow plates 239 are fixedly connected to both ends of the T-shaped plate 238. The inner wall of the first track 233 is movably connected to the hollow plates 239. A force-bearing plate 2310 is provided on the side of the third base 231 close to the movable component 22. Second sliding columns 2311 are fixedly connected to the upper and lower ends of the force-bearing plate 2310 close to the first base 1 side. The outer walls of the second sliding columns 2311 are movably connected to the third base 231. Second circular plates 2312 are fixedly connected to the ends of the two second sliding columns 2311 away from the force-bearing plate 2310. Third springs 2313 are fixedly connected to the sides of the two second circular plates 2312 away from the second sliding columns 2311. The ends of the two third springs 2313 away from the second circular plates 2312 are fixedly connected to the third base 231. A connecting column 2314 is fixedly connected to the side of the upper second circular plate 2312 away from the second sliding column 2311. A second connecting plate 2315 is fixedly connected to the end of the connecting column 2314 away from the second circular plate 2312. A locking column 2316 is fixedly connected to the end of the second connecting plate 2315 away from the connecting column 2314. The outer wall of the locking column 2316 is movably connected to the hollow plate 239.

[0027] The switching component 24 includes a fourth base 241. A second slider 242 is fixedly connected to the bottom of the fourth base 241. The outer wall of the second slider 242 is movably connected to the front-back moving device 232. Second tracks 243 are fixedly connected to the left and right ends of the fourth base 241 close to the movable component 22 side. Second sliding seats 244 are movably connected to the inner walls of the two second tracks 243. Positioning holes 245 are provided on the sides of the two second sliding seats 244 away from the second tracks 243. A motor 246 is fixedly connected to the inner wall of the right second sliding seat 244. A drill bit 247 is fixedly connected to the output end of the motor 246. A sleeve 248 is fixedly connected to the inner wall of the left second sliding seat 244. A third sliding column 249 is movably connected to the inner wall of the sleeve 248. A punching drill bit 247 is fixedly connected to the bottom of the third sliding column 249. A fourth spring 2411 is fixedly connected to the bottom of the third sliding column 249. The bottom of the fourth spring 2411 is fixedly connected to the sleeve 248.

[0028] The working principle of this embodiment is as follows: Before processing the sheet material, first start the front-back moving device 232 to move the corresponding processing structure above the first track 233. At this time, the corresponding second track 243 coincides with the first track 233. Then start the movable component 22 to make the positioning column 225 embed into the positioning hole 245 on the second sliding seat 244. After that, the pressure column 223 applies an external force to the force-bearing plate 2310 to make the force-bearing plate 2310 move backward. At this time, the force-bearing plate 2310 drives the connecting column 2314 and the second connecting plate 2315 to move backward through the second sliding column 2311 and the second circular plate 2312. As the second connecting plate 2315 moves, it drives the locking column 2316 to be pulled out of the hollow plate 239, releasing the restriction on the T-shaped plate 238, so that the processing structure can move up and down normally. Finally, start the downward pressing component 21 to drive the processing component to move up and down.

[0029] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A numerically controlled hydraulic flatbed high-speed punching and drilling compound machine, comprising a first base (1), the top of the first base (1) is fixedly connected with a workbench (101), and the outer wall of the first base (1) is fixedly connected with a first horizontal moving device (102), characterized in that, Further included are: a composite mechanism (2), the composite mechanism (2) includes a sliding U-shaped plate (201), the inner wall of the sliding U-shaped plate (201) is movably connected to a first horizontal moving device (102), the left side of the top of the sliding U-shaped plate (201) is fixedly connected to a downward pressing assembly (21), and the right side of the top of the sliding U-shaped plate (201) is fixedly connected to an adjusting assembly (23); The downward pressing assembly (21) includes a second base (211), the bottom of the second base (211) is fixedly connected to the sliding U-shaped plate (201), the top of the second base (211) is fixedly connected to a vertical moving device (212), the second horizontal moving device (213) is movably connected to the side of the vertical moving device (212) close to the adjusting assembly (23), the bottom of the second horizontal moving device (213) is movably connected to an active assembly (22), and a push rod (214) is fixedly connected to the end of the second horizontal moving device (213) far from the vertical moving device (212); The active assembly (22) includes a first sliding seat (221), the outer wall of the first sliding seat (221) is movably connected to the second horizontal moving device (213), the bottom of the first sliding seat (221) is fixedly connected to a first connecting plate (222), the pressure column (223) is fixedly connected to the side of the bottom of the first connecting plate (222) close to the adjusting assembly (23), the support plate (224) is fixedly connected to the side of the first connecting plate (222) far from the pressure column (223), the top of the support plate (224) is fixedly connected to the first sliding seat (221), the positioning column (225) is movably connected to the inner wall of the first connecting plate (222), the first circular plate (226) is fixedly connected to the end of the positioning column (225) far from the pressure column (223), the first spring (227) is sleeved on the outer wall of the positioning column (225), one end of the first spring (227) is fixedly connected to the first circular plate (226), and the other end of the first spring (227) far from the first circular plate (226) is fixedly connected to the first connecting plate (222).

2. The numerically controlled hydraulic flat high-speed punching and drilling compound machine according to claim 1, characterized in that: The adjusting assembly (23) includes a third base (231), the bottom of the third base (231) is fixedly connected to the sliding U-shaped plate (201), the front and back moving device (232) is fixedly connected to the top of the third base (231), the switching assembly (24) is movably connected to the inner wall of the front and back moving device (232), the first track (233) is fixedly connected to the side of the front and back moving device (232) close to the downward pressing assembly (21), the chute (234) is formed in the inner wall of the first track (233), and the first sliding column (235) is fixedly connected to the inner wall of the chute (234).

3. The numerically controlled hydraulic flat high-speed punching and drilling compound machine according to claim 2, wherein: One outer wall of the sliding column one (235) is movably connected with a slider one (236). A second spring (237) is sleeved on the outer wall of the sliding column one (235). The top of the second spring (237) is fixedly connected with the slider one (236). The bottom of the second spring (237) is fixedly connected with the chute (234). The outer wall of the slider one (236) is fixedly connected with a T-shaped plate (238). Both ends of the T-shaped plate (238) are fixedly connected with hollow plates (239). The inner wall of the first rail (233) is movably connected with the hollow plates (239).

4. A numerically controlled hydraulic flatbed high-speed punching and drilling compound machine according to claim 3, characterized in that: One side of the third base (231) close to the movable component (22) is provided with a force-bearing plate (2310). Both upper and lower ends of the force-bearing plate (2310) on the side close to the first base (1) are fixedly connected with second sliding columns (2311). The outer walls of the second sliding columns (2311) are movably connected with the third base (231). One end of each of the two second sliding columns (2311) far from the force-bearing plate (2310) is fixedly connected with a second circular plate (2312). One side of each of the two second circular plates (2312) far from the second sliding columns (2311) is fixedly connected with a third spring (2313). One end of each of the two third springs (2313) far from the second circular plates (2312) is fixedly connected with the third base (231). One side of the upper second circular plate (2312) far from the second sliding column (2311) is fixedly connected with a connecting column (2314). One end of the connecting column (2314) far from the second circular plate (2312) is fixedly connected with a second connecting plate (2315). One end of the second connecting plate (2315) far from the connecting column (2314) is fixedly connected with a locking column (2316). The outer wall of the locking column (2316) is movably connected with the hollow plate (239).

5. The numerically controlled hydraulic flat high-speed punching and drilling compound machine according to claim 4, characterized in that: The switching component (24) includes a fourth base (241). The bottom of the fourth base (241) is fixedly connected with a slider two (242). The outer wall of the slider two (242) is movably connected with the front-back moving device (232). Both left and right ends of the fourth base (241) on the side close to the movable component (22) are fixedly connected with second rails (243). The inner walls of the two second rails (243) are both movably connected with second sliding seats (244). One side of each of the two second sliding seats (244) far from the second rails (243) is provided with a positioning hole (245). The inner wall of the second sliding seat (244) on the right side is fixedly connected with a motor (246). The output end of the motor (246) is fixedly connected with a drill bit (247). The inner wall of the second sliding seat (244) on the left side is fixedly connected with a sleeve (248). The inner wall of the sleeve (248) is movably connected with a third sliding column (249). The bottom of the third sliding column (249) is fixedly connected with a punching drill bit (247). The bottom of the third sliding column (249) is fixedly connected with a fourth spring (2411). The bottom of the fourth spring (2411) is fixedly connected with the sleeve (248).

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