Insulating part three-axis machining device

Abstract

The utility model provides an insulating part three-axis processing device which comprises a machine body, a working table, a Y-axis moving frame, an X-axis moving frame and a Z-axis moving plate, the Y-axis moving frame stretches across the working table, the X-axis moving frame is installed on the front side of the top of the Y-axis moving frame, the Z-axis moving plate is vertically installed on the front side of the X-axis moving frame in a sliding mode, and three-axis movement is controlled through a ball screw. The machining precision is improved; a motor is fixed to the front side of the Z-axis moving plate, the output end of the motor is connected with a rotating shaft, a forming cutter is installed at the bottom of the rotating shaft, the rotating shaft is hollow and provided with an open groove, a sliding rod is slidably installed in the rotating shaft, and a push plate is arranged at the bottom of the sliding rod and used for pushing out an insulating strip clamped in the forming cutter. The rear end of the control block slides on the surface of the fixing bolt, an arc groove is formed in the front end of the control block, and a protruding ring is arranged below the sliding sleeve and slides in the arc groove of the control block so as to adjust the position of the push plate in the forming cutter to adapt to machining of insulating plates with different thicknesses.

Description

Technical Field

[0001] This utility model belongs to the field of insulating component machining technology, specifically relating to a three-axis machining device for insulating components. Background Technology

[0002] Insulating components have wide applications in electrical, electronic, and high-voltage equipment, commonly used to isolate conductive parts, prevent current leakage, and improve equipment safety. The processing of insulating components typically requires precise cutting of insulating sheets to obtain dimensionally stable insulating sheets with shapes that meet design requirements. Currently, the processing of insulating components mainly relies on CNC machine tools or manual cutting methods. CNC machine tools offer higher precision and are suitable for mass production, while manual cutting methods are mostly used for small-scale or customized processing.

[0003] Existing insulation component processing equipment typically employs two-dimensional cutting methods, achieving linear cutting through single-axis or dual-axis motion, which is insufficient to meet the processing requirements of complex insulation components. To improve processing accuracy and adapt to the manufacturing requirements of insulation components with different shapes, three-axis machining equipment has gradually been applied in the field of insulation component processing. These devices achieve multi-directional cutting of insulation boards through the linkage of the X, Y, and Z axes, ensuring processing accuracy while improving production efficiency. However, existing three-axis machining equipment still faces certain technical challenges in its use.

[0004] First, during processing, the bottom of the insulating board easily comes into contact with the cutting blade, causing blade collision, affecting cutting accuracy, and even damaging the blade. Furthermore, cut insulating sheets may remain inside the forming cutting blade, causing blockage and affecting subsequent processing. This necessitates frequent machine shutdowns for cleaning, reducing production efficiency. Simultaneously, different thicknesses of insulating boards require different height adjustments from the pushing mechanism during processing. Existing devices often lack automatic adjustment mechanisms for different board thicknesses, causing the pushing mechanism to be unable to stably push out the cut insulating sheets, further impacting the stability of continuous processing. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a three-axis machining device for insulating parts, which can stably clamp the insulating plate, avoid tool collision, and effectively remove residual insulating sheets.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A three-axis machining device for insulating parts includes a machine body, a worktable mounted on the upper surface of the machine body, a Y-axis moving frame mounted above the machine body, the Y-axis moving frame spanning across the worktable, an X-axis moving frame mounted on the top front side of the Y-axis moving frame, and a Z-axis moving plate slidably mounted on the front surface of the X-axis moving frame. The Y-axis moving frame, X-axis moving frame, and Z-axis moving plate are all controlled by a lead screw. A front extension plate is provided at the bottom of the X-axis moving frame, and a motor is fixed to the front side of the Z-axis moving plate. A rotating shaft is mounted downward at the output end of the motor and is positioned in front of the front extension plate. A forming cutter is mounted at the bottom of the rotating shaft, the forming cutter being open downward and having a serrated bottom. The rotating shaft is hollow inside, with open slots on both sides communicating with the interior of the rotating shaft. A slide rod is slidably mounted inside the rotating shaft, and a push plate is provided at the bottom of the slide rod. The push plate is placed inside the forming cutter and is used to push out insulating sheets stuck inside the forming cutter.

[0008] Furthermore, a sliding sleeve is slidably mounted on the surface of the rotating shaft, and locking bolts are passed through the upper sides of both sides of the sliding sleeve surface. The locking bolts pass through the open groove, and the ends of the two locking bolts are screwed onto the top sides of the slide rod.

[0009] Furthermore, a raised ring is provided below the surface of the sliding sleeve.

[0010] Furthermore, an adjusting screw is vertically rotatably mounted on the surface of the front extension plate, and a fixing bolt is vertically arranged on the upper surface of the front extension plate, the fixing bolt being parallel to the axis of the adjusting screw.

[0011] Furthermore, a control block is screwed onto the surface of the adjusting screw, the rear end of the control block slides on the surface of the fixing bolt, and an arc groove is provided at the front end of the control block, with the rear side of the convex ring sliding within the arc groove of the control block.

[0012] Furthermore, the workbench surface is uniformly provided with sliding grooves, the sliding grooves are T-shaped, and clamping blocks slide inside the sliding grooves. The clamping blocks are locked and fixed by bolts, and the clamping blocks are used to clamp and fix the insulating material.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model provides a three-axis machining device for insulating parts. Through the combined control of an X-axis moving frame, a Y-axis moving frame, and a Z-axis moving plate, the machining device can achieve precise movement in multiple directions. Using a ball screw as the drive element ensures positioning accuracy during the cutting process and improves machining stability. Compared to traditional single-axis or dual-axis machining methods, it can more efficiently complete the cutting of complex insulating parts. This structural design makes the cutting process of insulating parts more precise, avoids the error accumulation problem caused by unidirectional cutting, improves machining consistency, and meets the production requirements of high-precision insulating parts.

[0015] This invention utilizes a T-shaped groove on the worktable surface, along with a clamping block to secure the insulating material. The clamping block features a stepped design, suspending the insulating material in mid-air and preventing bottom-impact on the cutting tool. In traditional processing methods, the insulating material is placed directly on the worktable, making it prone to shifting during cutting due to uneven force distribution, and even causing damage when the cutting tool contacts the bottom. This invention, through its clamping structure, ensures the insulating material remains stable throughout the cutting process, improving processing accuracy, reducing tool wear, and increasing processing efficiency.

[0016] This invention employs a shaped cutting blade during the cutting process and incorporates a pushing mechanism within the rotating shaft. This mechanism includes components such as a sliding rod, a push plate, and a sliding sleeve. After cutting, the shaped cutting blade may leave insulating sheets stuck inside. Traditional processing methods require manual cleaning of these residues, impacting continuous processing efficiency. This invention addresses this issue by using an automatic pushing function on the push plate. After each cut, the push plate ejects the insulating sheets stuck inside the shaped cutting blade, preventing blockages and ensuring smooth cutting in the next operation. This improves automation, reduces manual intervention, and increases production efficiency.

[0017] This invention also adjusts the position of the push plate inside the forming cutter by adjusting the combination structure of the screw and control block to accommodate the processing of insulating sheets of different thicknesses. In existing technology, the height of the pushing mechanism is usually fixed when processing insulating sheets of different thicknesses, which easily leads to problems such as incomplete pushing or jamming during the processing of insulating sheets of different specifications. This invention, by adjusting the height of the sliding sleeve through the screw, can flexibly adapt to insulating sheets of different specifications, ensuring that the insulating sheet can be smoothly pushed out after cutting, improving the versatility of the device and making it suitable for processing various insulating components.

[0018] This invention utilizes high-strength alloy steel to manufacture key components, and employs wear-resistant materials or surface treatment processes, such as oxidation or high-precision CNC machining, in high-friction areas. This improves the equipment's durability and reduces wear and error accumulation during long-term use. Furthermore, components such as the motor, ball screw, and guide rails are all made of high-precision industrial-grade parts, ensuring stable equipment operation, reducing maintenance costs, extending equipment lifespan, and providing a reliable guarantee for the efficient and precise machining of insulating parts. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the workbench of this utility model in its disassembled state;

[0021] Figure 3 This is a three-dimensional structural diagram of the X-axis moving frame of this utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the rotating shaft of this utility model;

[0023] Figure 5 This is a schematic diagram of the connection structure between the slide bar and the control block of this utility model;

[0024] Figure 6 For the present utility model Figure 3 A magnified three-dimensional structural diagram of area A.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Machine body; 2. Worktable; 21. Slide groove; 22. Clamping block; 3. Y-axis moving frame; 4. X-axis moving frame; 41. Front extension plate; 411. Adjusting screw; 412. Fixing bolt; 5. Z-axis moving plate; 6. Motor; 61. Rotating shaft; 62. Open slot; 63. Forming and cutting blade; 7. Slide rod; 71. Push plate; 8. Sliding sleeve; 81. Locking bolt; 82. Raised ring; 9. Control block. Detailed Implementation

[0027] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0028] Example 1:

[0029] refer to Figures 1-6As shown, a three-axis machining device for insulating parts includes a body 1, which is made of steel to ensure overall stability and shock resistance. A worktable 2 is mounted on the upper surface of the body 1, made of high-strength aluminum alloy to provide good wear resistance and corrosion resistance, and to ensure that it is not easily deformed during long-term use. A Y-axis moving frame 3 is mounted above the body 1, spanning across the worktable 2. The Y-axis moving frame 3 is driven by a precision ball screw to ensure longitudinal movement accuracy. Guide rail structures are provided on both sides of the Y-axis moving frame 3, made of high-strength alloy steel to reduce friction during operation and improve movement stability. Qualitatively, an X-axis moving frame 4 is mounted on the top front side of the Y-axis moving frame 3. The X-axis moving frame 4 is connected by a linear slide rail to achieve high-precision lateral movement. A Z-axis moving plate 5 is vertically slidably mounted on the front surface of the X-axis moving frame 4. The Z-axis moving plate 5 is driven by a motor, specifically a servo motor SG90-75 series, to ensure precise control in the Z-axis direction. The Y-axis moving frame 3, X-axis moving frame 4, and Z-axis moving plate 5 are all controlled by ball screws. The ball screws are C7-grade precision screws to provide high positioning accuracy and low friction loss, improving machining accuracy and service life. A front extension plate 41 is provided at the bottom of the X-axis moving frame 4. 1. Made of stainless steel and bolted to the bottom of the X-axis moving frame 4 to provide additional support and ensure cutting stability; 2. A motor 6 is fixed to the front of the Z-axis moving plate 5, and a rotating shaft 61 is mounted downwards at the output end of the motor 6. The rotating shaft 61 has a hollow design and is made of wear-resistant high-carbon steel to enhance cutting strength and durability; 3. The rotating shaft 61 is located in front of the front extension plate 41, and a forming cutting blade 63 is mounted at the bottom of the rotating shaft 61. The forming cutting blade 63 is made of high-hardness alloy steel and precision machined to ensure the sharpness and wear resistance of the cutting edge; 4. The forming cutting blade 63 is open downwards and has a serrated bottom, the serrated structure design effectively improving cutting performance. It features high cutting efficiency and reduced burrs during the cutting process. The rotating shaft 61 is hollow inside, with open slots 62 on both sides that are connected to the inside of the rotating shaft 61. The open slots 62 reduce chip accumulation during cutting, improve chip removal efficiency, and prevent clogging. A slide rod 7 is slidably installed inside the rotating shaft 61, and a push plate 71 is provided at the bottom of the slide rod 7. The push plate 71 is placed inside the forming cutting blade 63 and is made of wear-resistant, high-strength alloy material to ensure long-term stability. The push plate 71 is used to push out the insulating sheet stuck inside the forming cutting blade 63, preventing residual insulating sheet from affecting the next cut and improving continuous processing capability.

[0030] refer to Figures 4-6As shown, a sliding sleeve 8 is slidably mounted on the surface of the rotating shaft 61. The sliding sleeve 8 is made of precision-machined stainless steel to ensure smooth sliding and reduce friction loss, thereby improving service life. Locking bolts 81 are threaded through the upper sides of both sides of the sliding sleeve 8. The locking bolts 81 are made of high-strength alloy steel to provide stable locking performance and reduce loosening caused by vibration. The locking bolts 81 pass through the open slot 62, and the ends of the two locking bolts 81 are screwed onto the top sides of the slide rod 7 to fix and adjust the slide rod 7, so that the slide rod 7 can move stably up and down within a specific range.

[0031] refer to Figure 4 As shown, a convex ring 82 is provided below the surface of the sliding sleeve 8. The convex ring 82 is made by integral casting and is machined with high precision to ensure the smoothness of its surface and dimensional accuracy, so as to ensure smooth sliding during the adjustment process without jamming.

[0032] refer to Figure 3 and Figure 6 As shown, an adjusting screw 411 is vertically rotatably mounted on the surface of the front extension plate 41. The adjusting screw 411 is a high-precision ball screw to improve adjustment accuracy and reduce operational errors. The adjusting screw 411 is fixed to the front extension plate 41 by a threaded connection to facilitate height adjustment. A fixing bolt 412 is vertically provided on the upper surface of the front extension plate 41. The fixing bolt 412 is parallel to the axis of the adjusting screw 411. The fixing bolt 412 is made of high-strength alloy steel to provide sufficient rigidity and prevent deformation due to force during use from affecting the adjustment accuracy.

[0033] refer to Figure 6 As shown, a control block 9 is screwed onto the surface of the adjusting screw 411. The control block 9 is made of high-strength aluminum alloy and is precision CNC machined to ensure its surface smoothness and dimensional accuracy. The rear end of the control block 9 slides on the surface of the fixing bolt 412. The sliding connection structure of the fixing bolt 412 enables the control block 9 to maintain stable movement and will not be affected by external forces, thus improving the accuracy of adjustment. The front end of the control block 9 has an arc groove, and the rear side of the convex ring 82 slides in the arc groove of the control block 9. The size of the arc groove is precisely calculated to ensure smooth sliding and avoid shaking caused by excessive gap.

[0034] refer to Figure 1As shown, the worktable 2 has uniformly spaced grooves 21 on its surface. The grooves 21 have a T-shaped structure, which improves the stability of the clamping block 22 and prevents displacement of the clamping block 22 due to vibration or cutting force. The grooves 21 are made of high-strength aluminum alloy and have undergone oxidation treatment to improve wear resistance and corrosion resistance. The clamping block 22 slides inside the grooves 21. The clamping block 22 has a stepped design and is made of high-strength carbon steel to improve its resistance to deformation and ensure that it is not easily damaged during long-term clamping. The clamping block 22 is fixed by bolts. The bolts are M8 grade alloy steel bolts to provide sufficient locking force and prevent loosening due to vibration during clamping. The clamping block 22 is used to clamp and fix the insulating board. The design of the clamping block 22 can adapt to insulating boards of different thicknesses, and the stepped structure keeps the insulating board in a suspended state, avoiding bottom collision with the tool, improving machining accuracy, and reducing tool wear.

[0035] Example 2: Application of three-axis linkage control to improve machining accuracy

[0036] In this embodiment, the Y-axis moving frame, X-axis moving frame, and Z-axis moving plate are all controlled by ball screws. The ball screws are C7-grade high-precision screws with a transmission accuracy of 0.01mm. They are paired with linear guides (model HGW20CC) to provide stable movement support and ensure the accuracy of the three-axis movement. The X-axis, Y-axis, and Z-axis are each driven by three servo motors (model SG90-75). The servo motors have fast response speed and high positioning accuracy, which can effectively reduce machining errors. In addition, a motion control system (model Siemens S7-1500 PLC) is used to achieve precise linkage control of the three axes, so that the processing of insulating parts can be accurately cut according to the preset path, ensuring stability and consistency during mass production.

[0037] Comparative Cases:

[0038] Traditional methods for cutting insulating components typically employ single-axis or dual-axis machining, involving manual adjustment of the worktable or cutting using only the X and Y axes. The lack of precise Z-axis control can easily lead to height deviations in the sheet material, affecting the cutting depth. Furthermore, the slow response of traditional stepper motor control methods can result in overcutting or undercutting, impacting machining accuracy. In contrast, this embodiment utilizes three-axis linkage control, ensuring machining accuracy, reducing the defect rate caused by error accumulation during cutting, and improving production efficiency.

[0039] Example 3: Application of stepped clamping blocks to prevent blade collision

[0040] In this embodiment, T-shaped grooves are evenly distributed on the surface of the worktable. The internal dimensions of the T-shaped grooves are 20mm × 10mm to match the fixing requirements of the bottom slider of the clamping block. The clamping block adopts a stepped design. The main material of the clamping block is high-strength alloy steel (model 40Cr), and its surface is quenched to improve hardness and wear resistance. The height of the stepped part of the clamping block is adjustable according to the thickness of the insulating board, with an adjustment range of 2mm-10mm, so that the insulating board is suspended in the air and the bottom will not contact the worktable during the cutting process, thereby preventing the blade from colliding and improving the processing accuracy.

[0041] Comparative Cases:

[0042] Traditional clamping methods typically use planar clamping, where the insulating material is directly fixed to the worktable surface. During the cutting process, uneven bottom support can easily cause vibration, leading to decreased cutting accuracy and even tool impact with the worktable, affecting tool life. In contrast, this embodiment uses a stepped clamping structure to ensure that the insulating material is always suspended, effectively avoiding tool impact, improving processing quality, reducing tool wear, and extending the service life of the equipment.

[0043] Example 4: Application of automatic ejection of insulating sheet by push plate

[0044] In this embodiment, the push plate is made of high-strength wear-resistant steel (GCr15) with a thickness of 5mm to ensure sufficient strength and wear resistance. The slide rod is made of alloy steel (42CrMo) and has undergone high-precision grinding to ensure smooth movement of the push plate inside the rotating shaft. The gap between the push plate and the inside of the forming cutter is 0.2mm to ensure that the insulating sheet will not get stuck. In addition, the open groove (6mm×15mm) inside the rotating shaft can effectively reduce the accumulation of chips during the cutting process and improve chip removal capacity. After cutting, the slide rod ensures that the push plate is always in the set position through the limiting structure of the sliding sleeve, and immediately pushes out the insulating sheet stuck inside after the forming cutter moves up, preventing the insulation sheet from affecting subsequent cutting due to accumulation.

[0045] Comparative Cases:

[0046] In traditional processing methods, insulating sheets often get stuck inside the cutting tool during the cutting process, requiring manual removal. This not only increases downtime but also easily causes tool wear due to repeated operations, and may even affect the accuracy of the next cut. In contrast, this embodiment uses a push plate to automatically push out the insulating sheet, eliminating the need for manual intervention after cutting, improving automation, reducing downtime, and increasing production efficiency.

[0047] Example 5: The pusher height is adjustable to accommodate applications with insulation boards of different thicknesses.

[0048] In this embodiment, the adjusting screw adopts a high-precision ball screw (model SFU1605), with an adjustment accuracy of up to 0.02mm, and a locking device is used to prevent loosening during the adjustment process; the control block is made of high-strength aluminum alloy (model 7075-T6), ensuring lightweight while having sufficient rigidity; the screw engagement structure of the adjusting screw allows the height adjustment range of the push plate to be 5mm-20mm, so that insulation boards of different thicknesses can be effectively processed, while ensuring that the push plate is always in the appropriate position to ensure that the cut insulation sheet can be smoothly pushed out, improving the adaptability of the equipment.

[0049] Comparative Cases:

[0050] In traditional processing methods, due to the fixed height of the push plate, insulation boards of different thicknesses are prone to problems such as incomplete pushing or jamming during the cutting process, leading to processing failure. In contrast, this embodiment uses an adjustable push plate height, which allows the device to adapt to insulation boards of different thicknesses, ensuring the stability of the pushing mechanism, improving the compatibility of the equipment, and making it suitable for processing more types of insulation materials.

[0051] Example 6: Application of high wear-resistant materials and precision machining to improve equipment service life

[0052] In this embodiment, the forming cutting blade is made of high-hardness alloy steel (model W18Cr4V), with a hardness of up to HRC62, ensuring that it is not easily worn during long-term use; the ball screw and linear guide are both made of wear-resistant materials and are titanium-plated on the surface to improve wear resistance and corrosion resistance; in addition, the friction contact surfaces of the slide rod and slide sleeve are processed with high precision and coated with a MoS2 solid lubricant layer to reduce friction and improve the service life of the components.

[0053] Comparative Cases:

[0054] In traditional equipment, the use of ordinary carbon steel makes parts prone to wear and tear due to friction after long-term use, which affects the machining accuracy and requires frequent replacement of parts, increasing maintenance costs. In contrast, this embodiment improves the durability of the equipment, reduces the frequency of maintenance, lowers operating costs, and improves overall production efficiency by using highly wear-resistant materials and precision machining technology.

[0055] The working principle of this utility model is as follows: The insulating board is placed on the surface of the workbench 2 and the clamping block 22 is slid into the edge of the insulating board. The clamping block 22 is fixed by bolts and is stepped so that the insulating board is suspended to prevent the bottom from hitting the blade. The Y-axis moving frame 3 is moved longitudinally by the lead screw, the X-axis moving frame 4 is moved laterally, and the Z-axis moving plate 5 is moved vertically to achieve three-axis processing. The motor 6 is started to control the rotating shaft 61 to rotate, which in turn causes the forming cutting blade 63 at the bottom to rotate. The forming cutting blade 63 cuts the board to cut the rectangular board into multiple insulating sheets that are adapted to the inner diameter of the forming cutting blade 63, thus achieving forming processing. However, during this process, the cut insulating sheets will get stuck inside the forming cutting blade 63, affecting the next cutting operation.

[0056] When the Z-axis moving plate 5 moves up and down for cutting, the height of the control block 9 is controlled by engaging the adjusting screw 411, which in turn controls and maintains the height of the sliding sleeve 8. The sliding sleeve 8 is fixed to the sliding rod 7 by bolts, thus ensuring the stability of the height of the sliding rod 7. During processing, the rotating shaft 61 moves down once for each processing operation, but the push plate 71 maintains a stable height. After a single cut is completed, the forming cutting blade 63 moves up. At this time, the push plate 71 can push out the insulating sheet stuck inside the forming cutting blade 63 to prevent it from affecting the next cut. The height of the sliding sleeve 8 is controlled by engaging the adjusting screw 411, which in turn controls the position of the push plate 71 inside the forming cutting blade 63 to adapt to the processing of insulating boards of different thicknesses.

[0057] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A three-axis processing device for insulating parts, comprising a machine body (1), characterized in that: The upper surface of the machine body (1) is provided with a workbench (2), the upper surface of the machine body (1) is provided with a Y-axis moving frame (3), the Y-axis moving frame (3) is transverse to the upper surface of the workbench (2), the top of the Y-axis moving frame (3) is provided with an X-axis moving frame (4), the front surface of the X-axis moving frame (4) is vertically provided with a Z-axis moving plate (5), the Y-axis moving frame (3), the X-axis moving frame (4) and the Z-axis moving plate (5) are controlled by a lead screw, the bottom of the X-axis moving frame (4) is provided with a front extension plate (41), the front surface of the Z-axis moving plate (5) is fixedly provided with a motor (6), the output end of the motor (6) is downwardly provided with a rotating shaft (61), the rotating shaft (61) is arranged on the front surface of the front extension plate (41), the bottom of the rotating shaft (61) is provided with a shaped cutting knife (63), the shaped cutting knife (63) is downwardly open, the bottom of the shaped cutting knife (63) is sawtooth-shaped, the rotating shaft (61) is hollow, the two sides of the rotating shaft (61) are oppositely provided with open grooves (62), the open grooves (62) are in communication with the interior of the rotating shaft (61), the interior of the rotating shaft (61) is slidably provided with a sliding rod (7), the bottom of the sliding rod (7) is provided with a push plate (71), the push plate (71) is arranged in the interior of the shaped cutting knife (63), and the push plate (71) is used for pushing out the insulation sheet clamped in the interior of the shaped cutting knife (63).

2. The apparatus of claim 1, wherein: The surface of the rotating shaft (61) is slidably provided with a sliding sleeve (8), the surface of the sliding sleeve (8) is provided with lock bolts (81) penetrating through the two sides and the upper surface of the sliding sleeve (8), the lock bolts (81) penetrate through the open grooves (62), and the ends of the two lock bolts (81) are screwed on the two sides of the top of the sliding rod (7).

3. The apparatus of claim 2, wherein: The lower surface of the sliding sleeve (8) is provided with a convex ring (82).

4. The apparatus of claim 3, wherein: The surface of the front extension plate (41) is vertically rotatably provided with an adjusting screw (411), the upper surface of the front extension plate (41) is vertically provided with a fixing bolt (412), and the fixing bolt (412) is parallel to the axis of the adjusting screw (411).

5. The apparatus of claim 4 wherein: The surface of the adjusting screw (411) is screwed with a control block (9), the rear end of the control block (9) is slid on the surface of the fixing bolt (412), the front end of the control block (9) is provided with a circular groove, and the rear side of the convex ring (82) slides in the circular groove of the control block (9).

6. The apparatus of claim 1 wherein: The surface of the workbench (2) is uniformly provided with a sliding groove (21), the sliding groove (21) is in a T-shaped structure, the inner side of the sliding groove (21) is slidably provided with a clamping block (22), the clamping block (22) is fixed by bolts, and the clamping block (22) is used for clamping and fixing the insulation plate.

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