Perforating device for PVC pipe machining and capable of preventing pipe deformation

Abstract

The invention provides a PVC pipe processing punching device capable of preventing pipe deformation, and belongs to the field of pipe processing, the PVC pipe processing punching device comprises a frame, a waste chip bin, a limiting frame, a movable plate, a movable rod and a first spring, and further comprises a punching assembly located on the outer wall of the frame, a clamping assembly located on the outer wall of the frame, and a lifting assembly; the lifting assembly is located on the outer wall of the frame. According to the device, a lower pressing pad and a rubber wheel are arranged outside the frame, when a hydraulic push rod pushes a connecting plate and an extension rod to descend through a second spring, the extension rod can apply pressure to a pipe through the lower pressing pad, so that the pipe pushes a moving frame to slide on the outer wall of the frame through the rubber wheel, and pressure is applied to a third spring through a moving plate; and at the moment, a spring III clamps the pipe through a moving plate, a moving frame and a rubber wheel and is matched with a lower pressing pad, so that the pipe is clamped and fixed, and the problem that an existing punching device cannot guarantee the stability of the pipe in the punching process is solved.

Description

Technical Field

[0001] The present invention relates to the field of pipe processing, and more particularly to a punching device for PVC pipes that prevents pipe deformation during processing. Background Art

[0002] In modern industrial production and construction fields, PVC pipes have been extremely widely used due to their many excellent properties such as corrosion resistance, low cost, and light weight. Whether in water supply and drainage systems or in the laying of electrical circuits, PVC pipes play an indispensable role. During the processing of PVC pipes, punching is a common and important process. For example, in scenarios such as making branch connections of drainage pipes and outlet openings of electrical conduit pipes, precise punching of PVC pipes is required.

[0003] With the continuous development of industrial technology, the requirements for the quality and efficiency of pipe processing are increasing day by day. Existing punching devices for pipe processing have exposed many problems in actual applications. Due to the insufficient stability of the device's own structure and the influence of factors such as uneven pipe material and processing vibration during punching, the punched hole positions deviate greatly, and the accuracy of the hole diameter size is not high. This not only affects the accuracy of the pipe during subsequent assembly but also may reduce the performance and service life of the entire product due to hole quality problems. How to solve these problems has become an urgent problem for those skilled in the art. Summary of the Invention

[0004] To make up for the above deficiencies, the present invention provides a punching device for PVC pipes that prevents pipe deformation, aiming to solve the problem that existing punching devices cannot ensure the stability of pipes during punching.

[0005] The present invention is implemented as follows:

[0006] The present invention provides a punching device for PVC pipes that prevents pipe deformation, including a frame, a waste chip bin, a limiting frame, a movable plate, a movable rod, and a first spring. The waste chip bin is fixedly connected to the bottom of the frame, the limiting frame is fixedly connected to the outer wall of the frame, the movable plate is slidably connected to the outer wall of the limiting frame, the movable rod is fixedly connected to the top of the movable plate, and the first spring is installed on the outer wall of the movable rod. The device further includes:

[0007] A punching assembly, which is located on the outer wall of the frame and is used to pre-fix the pipe and simultaneously perform a punching operation on the pipe.

[0008] A clamping assembly, which is located on the outer wall of the frame and is used to assist the punching assembly in clamping and fixing the pipe to prevent the pipe from changing its angle during punching.

[0009] Lifting assembly, the lifting assembly is located on the outer wall of the frame, and the lifting assembly is used to limit the downward pressing distance of the pipe, and can also lift the pipe that has completed the drilling operation, facilitating the operator to take out the pipe that has completed the drilling operation from the inside of the clamping assembly.

[0010] Preferably, the drilling assembly includes a bent plate, a hydraulic push rod, a connecting rod, a drilling machine, a connecting plate, a second spring, an extension rod and a pressing pad. The bent plate is fixedly connected to the top of the frame, the hydraulic push rod is fixedly connected to the outer wall of the bent plate, the connecting rod is fixedly connected to the bottom end of the output end of the hydraulic push rod, the drilling machine is fixedly connected to the bottom end of the connecting rod, the connecting plate is installed on the outer wall of the connecting rod, the second spring is fixedly connected to the top of the connecting plate, the extension rod is fixedly connected to the bottom of the connecting plate, and the pressing pad is fixedly connected to the bottom end of the extension rod.

[0011] Preferably, a notch is formed inside the frame, the drilling machine is slidably connected to the inner wall of the notch, the connecting rod passes through the connecting plate and extends to the outside of the connecting plate, and the outer wall of the connecting rod is slidably connected to the inner wall of the connecting plate that is penetrated.

[0012] By adopting the above technical solution, when the hydraulic push rod operates, the connecting rod can push the drilling machine to move in the notch, so as to adjust the height of the drilling machine, and the connecting rod can slide inside the connecting plate.

[0013] Preferably, the top of the second spring is fixedly connected to the bottom output end of the hydraulic push rod, the extension rod passes through the frame and extends to the outside of the frame, the outer wall of the extension rod is slidably connected to the inner wall of the frame that is penetrated, and a rubber pad is fixedly connected to the bottom of the pressing pad.

[0014] By adopting the above technical solution, when the hydraulic push rod pushes the connecting rod to move, the second spring will push the connecting plate to move. When the connecting plate descends, it can push the extension rod to move inside the frame and change the position of the pressing pad. The setting of the rubber pad prevents the pipe from changing its angle when the pressing pad presses the pipe.

[0015] Preferably, the clamping assembly includes a moving frame, rubber wheels, a first sliding rod, a moving plate, a fixing plate, a second sliding rod and a third spring. The moving frame is arranged on the outer wall of the frame, the rubber wheels are installed on the outer wall of the moving frame, the first sliding rod is fixedly connected to the bottom of the moving frame, the moving plate is fixedly connected to the bottom end of the first sliding rod, the fixing plate is fixedly connected to the bottom of the frame, the second sliding rod is fixedly connected to the outer wall of the moving plate, and the third spring is fixedly connected to the outer wall of the fixing plate.

[0016] Preferably, the bottom of the moving frame is slidably connected to the outer wall of the frame. A slide rail is provided inside the frame. The first slide rod is located inside the slide rail and is slidably connected to the outer wall of the slide rail. The top of the moving plate is rotatably connected to a ball in contact with the bottom of the frame.

[0017] By adopting the above technical solution, when the pressing pad pushes the pipe downward, the pipe will push the moving frame to move on the outer wall of the frame through the rubber wheel. When the moving frame moves, the first slide rod can slide inside the slide rail. The presence of the ball can reduce the friction between the moving plate and the frame.

[0018] Preferably, the second slide rod penetrates through the fixed plate and extends to the outside of the fixed plate. The outer wall of the second slide rod is slidably connected to the inner wall of the fixed plate penetrated by the second slide rod. The side of the third spring away from the fixed plate is fixedly connected to the outer wall of the moving plate.

[0019] By adopting the above technical solution, when the moving frame drives the moving plate to move through the first slide rod, the second slide rod will pass through the fixed plate. At the same time, the moving plate will exert a pressure on the third spring. At this time, the third spring will exert a pressure on the pipe through the moving plate, the first slide rod, the moving frame and the rubber wheel, so as to complete the clamping of the pipe.

[0020] Preferably, the lifting assembly includes a third slide rod, a limiting plate, a lifting pad, a bottom plate and a fourth spring. The third slide rod is installed on the outer wall of the frame. The limiting plate is fixedly connected to the outer wall of the third slide rod. The lifting pad is fixedly connected to the top of the third slide rod. The bottom plate is fixedly connected to the bottom of the third slide rod. The fourth spring is fixedly connected to the top of the bottom plate.

[0021] Preferably, the third slide rod penetrates through the frame and is slidably connected to the inner wall of the frame penetrated by the third slide rod. The limiting plates are distributed at the top and bottom of the outer wall of the third slide rod. The limiting plates are located above and below the frame. The top of the fourth spring is fixedly connected to the bottom of the frame.

[0022] By adopting the above technical solution, the presence of the limiting plate can limit the sliding distance of the third slide rod. When the pipe is pressed downward under the action of the pressing pad, it will exert a pressure on the third slide rod through the lifting pad, so that the third slide rod exerts a pulling force on the fourth spring through the bottom plate. After the pressing pad is reset, the fourth spring will drive the third slide rod to reset, so that the lifting pad pushes the pipe upward, which is convenient for the operator to take out the pipe from the device.

[0023] The beneficial effects of the present invention are:

[0024] 1. By arranging a pressing pad and rubber wheels outside the frame, when the hydraulic push rod pushes the connecting plate and the extension rod to descend through the second spring, the extension rod will apply pressure to the pipe through the pressing pad, causing the pipe to push the moving frame to slide on the outer wall of the frame through the rubber wheels, and applying pressure to the third spring through the moving plate. At this time, the third spring will clamp the pipe through the moving plate, the moving frame and the rubber wheels, and cooperate with the pressing pad to complete the clamping and fixing of the pipe, solving the problem that the existing punching device cannot ensure the stability of the pipe during the punching process.

[0025] 2. By installing a rubber pad at the bottom of the pressing pad, since the surface of the rubber pad is relatively rough, when the pressing pad contacts the surface of the pipe, the rubber pad will fit the surface of the pipe. When the pipe shakes, the rubber pad will apply frictional force to the pipe through the surface of the pipe, thus avoiding angular deviation during the processing and punching of the pipe. Since the moving frame can drive the rubber wheels to move on the surface of the frame, the distance between the rubber wheels can be changed, so as to ensure that the rubber wheels can clamp and fix pipes of different specifications, improving the applicability of the device.

[0026] 3. By arranging the third sliding rod and the fourth spring on the surface of the frame, when the pressing pad drives the pipe to descend, it will push the third sliding rod to descend through the lifting pad, causing the bottom plate to apply a pulling force to the fourth spring. When the pressing pad rises and resets, the fourth spring will drive the third sliding rod to rise through the bottom plate, causing the lifting pad to push the pipe to rise, which is convenient for the operator to take out the pipe from the clamping position of the rubber wheels. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, so they should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0028] Figure 1 It is a schematic diagram of the overall structure of a punching device for PVC pipes to prevent pipe deformation provided by an embodiment of the present invention;

[0029] Figure 2 It is a schematic diagram of the structure of the limiting frame of a punching device for PVC pipes to prevent pipe deformation provided by an embodiment of the present invention;

[0030] Figure 3 It is a partial schematic diagram of the overall structure of a punching device for PVC pipes to prevent pipe deformation provided by an embodiment of the present invention;

[0031] Figure 4It is a schematic structural diagram of a punching component of a PVC pipe processing punching device for preventing pipe deformation provided by an embodiment of the present invention;

[0032] Figure 5 It is a schematic structural diagram of a clamping component of a PVC pipe processing punching device for preventing pipe deformation provided by an embodiment of the present invention;

[0033] Figure 6 It is a schematic structural diagram of a moving frame of a PVC pipe processing punching device for preventing pipe deformation provided by an embodiment of the present invention;

[0034] Figure 7 It is a schematic diagram of pipe fixation of a PVC pipe processing punching device for preventing pipe deformation provided by an embodiment of the present invention;

[0035] Figure 8 It is a schematic structural diagram of a lifting component of a PVC pipe processing punching device for preventing pipe deformation provided by an embodiment of the present invention.

[0036] In the figure: 1. Frame; 2. Scrap bin; 3. Limit frame; 4. Movable plate; 5. Movable rod; 6. First spring; 7. Punching component; 701. Bent plate; 702. Hydraulic push rod; 703. Connecting rod; 704. Drilling machine; 705. Connecting plate; 706. Second spring; 707. Extension rod; 708. Pressing pad; 8. Clamping component; 801. Moving frame; 802. Rubber wheel; 803. First sliding rod; 804. Moving plate; 805. Fixed plate; 806. Second sliding rod; 807. Third spring; 9. Lifting component; 901. Third sliding rod; 902. Limit plate; 903. Lifting pad; 904. Bottom plate; 905. Fourth spring. Specific embodiments

[0037] To make the purposes, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0038] Refer to Figures 1-8, a punching device for PVC pipe processing to prevent pipe deformation, including a frame 1, a waste chip bin 2, a limiting frame 3, a movable plate 4, a movable rod 5 and a first spring 6. The waste chip bin 2 is fixedly connected to the bottom of the frame 1. The limiting frame 3 is fixedly connected to the outer wall of the frame 1. The movable plate 4 is slidably connected to the outer wall of the limiting frame 3. The movable rod 5 is fixedly connected to the top of the movable plate 4. The first spring 6 is installed on the outer wall of the movable rod 5. It further includes:

[0039] A punching assembly 7, which is located on the outer wall of the frame 1 and is used to pre-fix the pipe and simultaneously perform a punching operation on the pipe.

[0040] A clamping assembly 8, which is located on the outer wall of the frame 1 and is used to assist the punching assembly 7 in clamping and fixing the pipe to prevent the pipe from changing its angle during punching.

[0041] A lifting assembly 9, which is located on the outer wall of the frame 1 and is used to limit the downward pressing distance of the pipe and can also lift the pipe after the punching operation is completed, facilitating the operator to take out the pipe after the punching operation from the inside of the clamping assembly 8.

[0042] The punching assembly 7 includes a bent plate 701, a hydraulic push rod 702, a connecting rod 703, a drilling machine 704, a connecting plate 705, a second spring 706, an extension rod 707 and a downward pressing pad 708. The bent plate 701 is fixedly connected to the top of the frame 1. The hydraulic push rod 702 is fixedly connected to the outer wall of the bent plate 701. The connecting rod 703 is fixedly connected to the bottom end of the output end of the hydraulic push rod 702. The drilling machine 704 is fixedly connected to the bottom end of the connecting rod 703. The connecting plate 705 is installed on the outer wall of the connecting rod 703. The second spring 706 is fixedly connected to the top of the connecting plate 705. The extension rod 707 is fixedly connected to the bottom of the connecting plate 705. The downward pressing pad 708 is fixedly connected to the bottom end of the extension rod 707.

[0043] It should be noted that: There is a notch inside the frame 1, and the drilling machine 704 is slidably connected to the inner wall of the notch. When the hydraulic push rod 702 operates, the drilling machine 704 can be pushed to move within the notch through the connecting rod 703, thereby adjusting the height of the drilling machine 704. The connecting rod 703 penetrates through the connecting plate 705 and extends to the outside of the connecting plate 705. The outer wall of the connecting rod 703 is slidably connected to the inner wall of the connecting plate 705 that is penetrated, and the connecting rod 703 slides inside the connecting plate 705. The top of the second spring 706 is fixedly connected to the bottom output end of the hydraulic push rod 702. When the hydraulic push rod 702 pushes the connecting rod 703 to move, the second spring 706 will push the connecting plate 705 to move. The extension rod 707 penetrates through the frame 1 and extends to the outside of the frame 1. The outer wall of the extension rod 707 is slidably connected to the inner wall of the frame 1 that is penetrated. When the connecting plate 705 descends, it can push the extension rod 707 to move inside the frame 1 and change the position of the pressing pad 708. A rubber pad is fixedly connected to the bottom of the pressing pad 708. The setting of the rubber pad prevents the angle of the pipe from changing when the pressing pad 708 presses the pipe.

[0044] By controlling the operation of the hydraulic push rod 702, the hydraulic push rod 702 pushes the drilling machine 704 to move through the output end and the connecting rod 703. At the same time, when the connecting rod 703 moves, it will push the connecting plate 705 to descend through the second spring 706. At this time, the connecting plate 705 will push the pressing pad 708 to descend through the extension rod 707, thereby fixing the pipe below the pressing pad 708. After the bottom of the connecting plate 705 abuts against the top of the frame 1, the fixing of the pipe is completed. At the same time, the connecting rod 703 continuously pushes the drilling machine 704 to descend and starts the drilling machine 704, so that the drilling machine 704 completes the drilling operation on the pipe during the descending process.

[0045] The clamping assembly 8 includes a moving frame 801, rubber wheels 802, a first sliding rod 803, a moving plate 804, a fixing plate 805, a second sliding rod 806, and a third spring 807. The moving frame 801 is arranged on the outer wall of the frame 1. The rubber wheels 802 are installed on the outer wall of the moving frame 801. The first sliding rod 803 is fixedly connected to the bottom of the moving frame 801. The moving plate 804 is fixedly connected to the bottom end of the first sliding rod 803. The fixing plate 805 is fixedly connected to the bottom of the frame 1. The second sliding rod 806 is fixedly connected to the outer wall of the moving plate 804. The third spring 807 is fixedly connected to the outer wall of the fixing plate 805.

[0046] It should be noted that the bottom of the moving frame 801 is slidably connected to the outer wall of the frame 1. A slide rail is provided inside the frame 1. When the lower pressing pad 708 pushes the pipe downward, the pipe will push the moving frame 801 to move on the outer wall of the frame 1 through the rubber wheel 802. The first slide rod 803 is located inside the slide rail and is slidably connected to the outer wall of the slide rail. The first slide rod 803 can slide inside the slide rail when the moving frame 801 moves. The top of the moving plate 804 is rollingly connected with a ball in contact with the bottom of the frame 1. The presence of the ball can reduce the friction between the moving plate 804 and the frame 1. The second slide rod 806 penetrates through the fixing plate 805 and extends to the outside of the fixing plate 805. The outer wall of the second slide rod 806 is slidably connected to the inner wall of the fixing plate 805 penetrated. The side of the third spring 807 away from the fixing plate 805 is fixedly connected to the outer wall of the moving plate 804. When the moving frame 801 drives the moving plate 804 to move through the first slide rod 803, the second slide rod 806 will pass through the fixing plate 805. At the same time, the moving plate 804 will apply a pressure to the third spring 807. At this time, the third spring 807 will apply a pressure to the pipe through the moving plate 804, the first slide rod 803, the moving frame 801 and the rubber wheel 802, so as to complete the clamping of the pipe.

[0047] By arranging the lower pressing pad 708 and the rubber wheel 802 outside the frame 1, when the hydraulic push rod 702 pushes the connecting plate 705 and the extension rod 707 downward through the second spring 706, the extension rod 707 will apply a pressure to the pipe through the lower pressing pad 708, so that the pipe will push the moving frame 801 to slide on the outer wall of the frame 1 through the rubber wheel 802, and apply a pressure to the third spring 807 through the moving plate 804. At this time, the third spring 807 will clamp the pipe through the moving plate 804, the moving frame 801 and the rubber wheel 802, and cooperate with the lower pressing pad 708 to complete the clamping and fixing of the pipe, solving the problem that the existing drilling device cannot ensure the stability of the pipe during the drilling process.

[0048] By installing a rubber pad at the bottom of the lower pressing pad 708, since the surface of the rubber pad is relatively rough, when the lower pressing pad 708 contacts the surface of the pipe, the rubber pad will fit the surface of the pipe. When the pipe shakes, the rubber pad will apply a frictional force to the pipe through the surface of the pipe, so as to avoid angular deviation during the processing and drilling of the pipe. Since the moving frame 801 can drive the rubber wheel 802 to move on the surface of the frame 1, the distance between the rubber wheels 802 can be changed, so as to ensure that the rubber wheels 802 can clamp and fix pipes of different specifications, improving the applicability of the device.

[0049] When the lower pressing pad 708 pushes the pipe downward, it will push the moving frame 801 to slide on the outer wall of the frame 1 through the rubber wheels 802 on both sides. At this time, the moving frame 801 will push the moving plate 804 to move through the first sliding rod 803. The moving plate 804 pushes the second sliding rod 806 to penetrate the fixing plate 805 and applies pressure to the third spring 807, so that the third spring 807 clamps and fixes the pipe through the moving plate 804, the first sliding rod 803, the moving frame 801 and the rubber wheels 802, thereby assisting the lower pressing pad 708 to complete the clamping and fixing of the pipe.

[0050] The lifting assembly 9 includes a third sliding rod 901, a limiting plate 902, a lifting pad 903, a bottom plate 904 and a fourth spring 905. The third sliding rod 901 is installed on the outer wall of the frame 1. The limiting plate 902 is fixedly connected to the outer wall of the third sliding rod 901. The lifting pad 903 is fixedly connected to the top of the third sliding rod 901. The bottom plate 904 is fixedly connected to the bottom of the third sliding rod 901. The fourth spring 905 is fixedly connected to the top of the bottom plate 904.

[0051] It should be noted that: the third sliding rod 901 penetrates the frame 1 and is slidably connected to the inner wall of the frame 1 that is penetrated. The limiting plates 902 are distributed at the top and bottom of the outer wall of the third sliding rod 901. The presence of the limiting plates 902 can limit the sliding distance of the third sliding rod 901. The limiting plates 902 are located above and below the frame 1. The top of the fourth spring 905 is fixedly connected to the bottom of the frame 1. When the pipe is pressed downward under the action of the lower pressing pad 708, it will apply pressure to the third sliding rod 901 through the lifting pad 903, so that the third sliding rod 901 applies a pulling force to the fourth spring 905 through the bottom plate 904. After the lower pressing pad 708 is reset, the fourth spring 905 will drive the third sliding rod 901 to reset, so that the lifting pad 903 pushes the pipe upward, which is convenient for the operator to take out the pipe from the device.

[0052] By arranging the third sliding rod 901 and the fourth spring 905 on the surface of the frame 1, when the lower pressing pad 708 drives the pipe to press downward, it will push the third sliding rod 901 to press downward through the lifting pad 903, so that the bottom plate 904 applies a pulling force to the fourth spring 905. When the lower pressing pad 708 rises and resets, the fourth spring 905 will drive the third sliding rod 901 to lift through the bottom plate 904, so that the lifting pad 903 pushes the pipe upward, which is convenient for the operator to take out the pipe from the clamping position of the rubber wheels 802.

[0053] When the pipe descends under the action of the lower pressing pad 708, the surface of the pipe will abut against the top of the lifting pad 903, and the lifting pad 903 will exert a thrust on the third sliding rod 901, causing the third sliding rod 901 to exert a pulling force on the fourth spring 905 through the bottom plate 904. After the drilling operation on the pipe is completed, the lower pressing pad 708 resets. At this time, the fourth spring 905 will push the lifting pad 903 to rise through the bottom plate 904 and the third sliding rod 901, and push the pipe to move to the top of the rubber wheel 802, facilitating the operator to take out the pipe from the clamping assembly 8.

[0054] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A punching device for processing PVC pipes to prevent pipe deformation, comprising a frame (1), a waste chip bin (2), a limiting frame (3), a movable plate (4), a movable rod (5) and a first spring (6). The waste chip bin (2) is fixedly connected to the bottom of the frame (1), the limiting frame (3) is fixedly connected to the outer wall of the frame (1), the movable plate (4) is slidably connected to the outer wall of the limiting frame (3), the movable rod (5) is fixedly connected to the top of the movable plate (4), and the first spring (6) is installed on the outer wall of the movable rod (5). It is characterized in that: It further includes: A punching component (7), the punching component (7) is located on the outer wall of the frame (1), and the punching component (7) is used for pre-fixing the pipe and simultaneously performing a punching operation on the pipe; A clamping component (8), the clamping component (8) is located on the outer wall of the frame (1), and the clamping component (8) is used to assist the punching component (7) in clamping and fixing the pipe to prevent the pipe from changing its angle during punching; A lifting component (9), the lifting component (9) is located on the outer wall of the frame (1), and the lifting component (9) is used to limit the downward pressing distance of the pipe and can also lift the pipe after the punching operation is completed, facilitating the operator to take out the pipe after the punching operation from the inside of the clamping component (8).

2. The punching device for processing PVC pipes to prevent pipe deformation according to claim 1, characterized in that: The punching component (7) includes a bent plate (701), a hydraulic push rod (702), a connecting rod (703), a drilling machine (704), a connecting plate (705), a second spring (706), an extension rod (707) and a downward pressing pad (708). The bent plate (701) is fixedly connected to the top of the frame (1), the hydraulic push rod (702) is fixedly connected to the outer wall of the bent plate (701), the connecting rod (703) is fixedly connected to the bottom end of the output end of the hydraulic push rod (702), the drilling machine (704) is fixedly connected to the bottom end of the connecting rod (703), the connecting plate (705) is installed on the outer wall of the connecting rod (703), the second spring (706) is fixedly connected to the top of the connecting plate (705), the extension rod (707) is fixedly connected to the bottom of the connecting plate (705), and the downward pressing pad (708) is fixedly connected to the bottom end of the extension rod (707).

3. A punching device for PVC pipe processing to prevent pipe deformation according to claim 2, characterized in that: A notch is formed inside the frame (1), and the drilling machine (704) is slidably connected to the inner wall of the notch. The connecting rod (703) penetrates through the connecting plate (705) and extends to the outside of the connecting plate (705), and the outer wall of the connecting rod (703) is slidably connected to the inner wall of the connecting plate (705) where it is penetrated.

4. A punching device for PVC pipe processing to prevent pipe deformation according to claim 3, characterized in that: The top of the second spring (706) is fixedly connected to the bottom output end of the hydraulic push rod (702). The extension rod (707) penetrates through the frame (1) and extends to the outside of the frame (1), and the outer wall of the extension rod (707) is slidably connected to the inner wall of the frame (1) where it is penetrated. A rubber pad is fixedly connected to the bottom of the downward pressing pad (708).

5. A punching device for processing PVC pipes to prevent pipe deformation according to claim 1, characterized in that: The clamping assembly (8) includes a moving frame (801), rubber wheels (802), a first sliding rod (803), a moving plate (804), a fixing plate (805), a second sliding rod (806) and a third spring (807). The moving frame (801) is arranged on the outer wall of the frame (1). The rubber wheels (802) are installed on the outer wall of the moving frame (801). The first sliding rod (803) is fixedly connected to the bottom of the moving frame (801). The moving plate (804) is fixedly connected to the bottom end of the first sliding rod (803). The fixing plate (805) is fixedly connected to the bottom of the frame (1). The second sliding rod (806) is fixedly connected to the outer wall of the moving plate (804). The third spring (807) is fixedly connected to the outer wall of the fixing plate (805).

6. The punching device for processing PVC pipes to prevent pipe deformation according to claim 5, characterized in that: The bottom of the moving frame (801) is slidably connected to the outer wall of the frame (1). A slide rail is provided inside the frame (1). The first sliding rod (803) is located inside the slide rail and is slidably connected to the outer wall of the slide rail. Ball bearings in contact with the bottom of the frame (1) are rotatably connected to the top of the moving plate (804).

7. A punching device for PVC pipe processing to prevent pipe deformation according to claim 6, characterized in that: The second sliding rod (806) penetrates through the fixing plate (805) and extends to the outside of the fixing plate (805). The outer wall of the second sliding rod (806) is slidably connected to the inner wall of the fixing plate (805) through which it penetrates. The side of the third spring (807) away from the fixing plate (805) is fixedly connected to the outer wall of the moving plate (804).

8. A punching device for processing PVC pipes to prevent pipe deformation according to claim 1, characterized in that: The lifting assembly (9) includes a third sliding rod (901), a limiting plate (902), a lifting pad (903), a bottom plate (904) and a fourth spring (905). The third sliding rod (901) is installed on the outer wall of the frame (1). The limiting plate (902) is fixedly connected to the outer wall of the third sliding rod (901). The lifting pad (903) is fixedly connected to the top end of the third sliding rod (901). The bottom plate (904) is fixedly connected to the bottom end of the third sliding rod (901). The fourth spring (905) is fixedly connected to the top of the bottom plate (904).

9. A punching device for processing PVC pipes to prevent pipe deformation according to claim 8, characterized in that: The third sliding rod (901) penetrates through the frame (1) and is slidably connected to the inner wall of the frame (1) through which it penetrates. The limiting plates (902) are distributed at the top and bottom of the outer wall of the third sliding rod (901). The limiting plates (902) are located above and below the frame (1). The top of the fourth spring (905) is fixedly connected to the bottom of the frame (1).

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