A horizontal basin-shaped thin-walled workpiece peripheral punching device for an electric heater

Abstract

The present invention provides a horizontal punching device for the periphery of a basin-shaped thin-walled workpiece of an electric heater, belonging to the technical field of punching devices. The device includes a frame. On one side of the upper part of the frame, a rotary clamping mechanism is slidably arranged for vertically clamping and horizontally rotating the basin-shaped thin-walled workpiece. On the other side of the upper part of the frame, a punching mechanism is arranged in cooperation with the rotary clamping mechanism. The inner end of the punching mechanism is lower than the outer end. At the bottom of the inner end of the punching mechanism, a first support shaft is horizontally rotatably arranged through a shaft seat. Both ends of the first support shaft are respectively arranged on the frame through an inner end position adjustment mechanism. The height and horizontal position of the inner end of the punching mechanism are adjusted through the inner end position adjustment mechanism. Both sides of the outer end of the punching mechanism are respectively vertically and adjustably arranged on the frame through an outer end position adjustment mechanism. The present invention is not only applicable to the punching processing of basin-shaped thin-walled workpieces with different numbers and densities of peripheral punches, but also applicable to the punching processing of basin-shaped thin-walled workpieces with different punching angles and heights.

Description

Technical Field

[0001] The present invention relates to the technical field of punching equipment, and particularly relates to a peripheral punching equipment for a horizontal basin-shaped thin-walled workpiece of an electric heater. Background Art

[0002] The outer shell of a circular electric heater is generally made of thin-walled metal material. In order to increase the heat dissipation, heat dissipation holes need to be punched on the outer periphery of the thin-walled metal shell. The heat dissipation holes are generally small and dense. The traditional method is to place the thin-walled metal shell workpiece on a fixed fixture, and arrange a circle of punching dies evenly on the outer periphery, and the punching of the entire workpiece can be completed in one punching.

[0003] However, on the one hand, the existing punching equipment needs to arrange a lot of punching dies circumferentially on the platform. When punching dense holes, due to the space limitation of the punching equipment, it is difficult to arrange a sufficient number of punching dies, which will inevitably limit the types of workpieces to be punched; on the other hand, the existing punching equipment cannot adjust the punching angle and height, and is not suitable for workpieces to be punched with different punching angles and heights. Therefore, it is necessary to research a new punching equipment. Summary of the Invention

[0004] In view of this, the present invention provides a peripheral punching equipment for a horizontal basin-shaped thin-walled workpiece of an electric heater, which is not only suitable for the punching processing of basin-shaped thin-walled workpieces with different numbers and densities of peripheral punching holes, but also suitable for the punching processing of basin-shaped thin-walled workpieces with different punching angles and heights.

[0005] To solve the above technical problems, the present invention provides a peripheral punching equipment for a horizontal basin-shaped thin-walled workpiece of an electric heater, including a frame. On one side of the upper part of the frame, a rotary clamping mechanism is slidably arranged for vertically clamping and horizontally rotating the basin-shaped thin-walled workpiece. On the other side of the upper part of the frame, a punching mechanism is arranged in cooperation with the rotary clamping mechanism. The inner end of the punching mechanism is lower than the outer end. The bottom of the inner end of the punching mechanism is horizontally rotatably provided with a first support shaft through a shaft seat. Both ends of the first support shaft are respectively arranged on the frame through an inner end position adjustment mechanism. The height and horizontal position of the inner end of the punching mechanism are adjusted through the inner end position adjustment mechanism. Both sides of the outer end of the punching mechanism are respectively vertically and adjustably arranged on the frame through an outer end position adjustment mechanism.

[0006] Further, the rotary clamping mechanism includes a first mounting seat slidably arranged on the frame through a slide rail and guide block structure. A first automatic telescopic cylinder for pushing the first mounting seat to slide is arranged on the frame outside the first mounting seat. A second support shaft is vertically arranged on the first mounting seat. A lower clamping plate is arranged at the top of the second support shaft. A motor for driving the second support shaft to rotate is arranged at the bottom of the first mounting seat. A support frame is arranged at the upper part of the first mounting seat. A second automatic telescopic cylinder is vertically arranged on the support frame. The free end of the second automatic telescopic cylinder is rotatably arranged with an upper clamping plate cooperating with the lower clamping plate.

[0007] Further, the first automatic telescopic cylinder is an electric telescopic cylinder, or a hydraulic telescopic cylinder, or a pneumatic telescopic cylinder.

[0008] Further, the second automatic telescopic cylinder is an electric telescopic cylinder, or a hydraulic telescopic cylinder, or a pneumatic telescopic cylinder.

[0009] Further, a notch is formed on the first mounting seat inside the second support shaft, and the inner end of the punching mechanism is located in the notch.

[0010] Further, the inner end position adjusting mechanism includes a rectangular frame arranged on the frame. A support plate is slidably arranged up and down inside the rectangular frame. A keyway hole is horizontally formed on the support plate. Support columns are threadedly connected to the rectangular frame below both ends of the support plate. The upper ends of the support columns support the bottom of the support plate. The end of the first support shaft is clamped in the keyway hole at the same end and fastened by a first rubber head screw.

[0011] Further, tightening rods for tightly pressing the ends of the support plate are respectively threadedly connected to both sides of the rectangular frame.

[0012] Further, the outer end position adjusting mechanism includes a U-shaped clamping seat and a vertical plate. The U-shaped clamping seat is clamped on the outer edge of one side of the outer end of the punching mechanism and fastened by a second rubber head screw. The vertical plate is arranged on the frame. An adjusting long slot is vertically formed on the vertical plate. A threaded connecting rod is arranged on the side surface of the vertical plate. The threaded connecting rod passes through the adjusting long slot and is fastened by a rubber head nut.

[0013] Further, a lower triangular support seat is arranged on the frame between two outer end position adjusting mechanisms. An upper triangular support seat cooperating with the lower triangular support seat is arranged at the bottom of the outer end of the punching mechanism. The lower triangular support seat and the upper triangular support seat are hinged by a hinge shaft, and the shaft hole cooperating with the hinge shaft on the lower triangular support seat or the upper triangular support seat is a long slot hole.

[0014] Further, the punching mechanism includes a second mounting seat. An upper inner end of the second mounting seat is provided with a fixed mold. On the second mounting seat on both sides of the fixed mold, a movable mold that cooperates with the fixed mold is slidably arranged through a slide rail and slider structure. An upper outer end of the second mounting seat is provided with a third automatic telescopic cylinder, and a free end of the third automatic telescopic cylinder is connected to an outer side of the movable mold.

[0015] Further, the third automatic telescopic cylinder is an electric telescopic cylinder, or a hydraulic telescopic cylinder, or a pneumatic telescopic cylinder.

[0016] Further, on the second mounting seat outside the fixed mold, a roller is rotatably arranged through a wheel frame, and the roller is located at the bottom of the movable mold.

[0017] Further, a waste collection bucket is placed in the machine frame below the inner end of the punching mechanism.

[0018] The beneficial effects of the above technical solutions of the present invention are as follows:

[0019] 1. The present invention adopts a horizontal structure in which the punching mechanism is horizontally arranged on the machine frame, and at the same time combines a rotary clamping mechanism to realize the rotary clamping and punching of a thin-walled basin-shaped workpiece. The number of punchings is not limited, providing a larger design space for the design of the number and density of punchings on the workpiece.

[0020] 2. In the present invention, the attitude adjustment of the punching mechanism relative to the rotary clamping mechanism is realized by using the inner end position adjustment mechanism and the outer end position adjustment mechanism, which is suitable for the punching processing of thin-walled basin-shaped workpieces with different punching angles and heights.

[0021] 3. In the present invention, the bottom sides of the thin-walled basin-shaped workpiece can be clamped by the lower clamping plate and the upper clamping plate. Moreover, since the upper clamping plate is rotatably connected to the free end of the second automatic telescopic cylinder, it does not affect the rotation of the thin-walled basin-shaped workpiece. At the same time, the first automatic telescopic cylinder can drive the first mounting seat and the components above it to realize horizontal advancement and retraction through the slide rail and slider structure, facilitating the clamping and material taking of the thin-walled basin-shaped workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a front view schematic diagram of the structure of the present invention;

[0023] Figure 2 is a three-dimensional schematic diagram of the structure of the present invention;

[0024] Figure 3 is a schematic diagram of the structure of the rotary clamping mechanism in the present invention;

[0025] Figure 4 is an assembly structure schematic diagram of the punching mechanism, the inner end position adjustment mechanism and the outer end position adjustment mechanism in the present invention;

[0026] Figure 5 This is a schematic diagram of the working state of the present invention.

[0027] Reference numerals:

[0028] Frame 100; lower triangular support base 110; upper triangular support base 120; hinge shaft 130; long slot hole 140; rotary clamping mechanism 200; first mounting seat 210; first automatic telescopic cylinder 220; second support shaft 230; lower clamping plate 240; motor 250; support frame 260; second automatic telescopic cylinder 270; upper clamping plate 280; notch 290; punching mechanism 300; shaft seat 301; first support shaft 302; second mounting seat 310; fixed mold 320; moving mold 330; third automatic telescopic cylinder 340; wheel frame 350; roller 360; inner end position adjustment mechanism 400; rectangular frame 410; support plate 420; keyway hole 430; support column 440; first rubber head screw 450; tightening rod 460; outer end position adjustment mechanism 500; U-shaped clamping seat 510; vertical plate 520; second rubber head screw 530; adjustment long slot 540; threaded connecting rod 550; rubber head nut 560; waste collection bucket 600. Detailed implementation manners

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying Figures 1-5 drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention fall within the scope of protection of the present invention.

[0030] As Figures 1-5 shown: A horizontal punching device for a thin-walled basin-shaped workpiece of an electric heater includes a frame. A rotary clamping mechanism is slidably arranged on one side of the upper part of the frame for vertically clamping and horizontally rotating the basin-shaped thin-walled workpiece. A punching mechanism cooperating with the rotary clamping mechanism is arranged on the other side of the upper part of the frame. The inner end of the punching mechanism is lower than the outer end. The bottom of the inner end of the punching mechanism is horizontally rotatably provided with a first support shaft through a shaft seat. Both ends of the first support shaft are respectively arranged on the frame through an inner end position adjustment mechanism. The height and horizontal position of the inner end of the punching mechanism are adjusted by the inner end position adjustment mechanism. The two sides of the outer end of the punching mechanism are respectively vertically and adjustably arranged on the frame through an outer end position adjustment mechanism.

[0031] Specifically, as Figure 1 and Figure 2As shown in the figure, a peripheral punching device for a horizontal basin-shaped thin-walled workpiece of an electric heater includes a frame 100. A rotary clamping mechanism 200 is slidably arranged on one side of the upper part of the frame 100 for vertically clamping and horizontally rotating the basin-shaped thin-walled workpiece. An punching mechanism 300 cooperating with the rotary clamping mechanism 200 is arranged on the other side of the upper part of the frame 100. The inner end of the punching mechanism 300 is lower than the outer end. A first support shaft 302 is horizontally rotatably arranged at the bottom of the inner end of the punching mechanism 300 through a shaft seat 301. Both ends of the first support shaft 302 are arranged on the frame 100 through an inner-end position adjustment mechanism 400. The height and horizontal position of the inner end of the punching mechanism 300 are adjusted by the inner-end position adjustment mechanism 400. Both sides of the outer end of the punching mechanism 300 are vertically and adjustably arranged on the frame 100 through an outer-end position adjustment mechanism 500 respectively.

[0032] According to an embodiment of the present invention, as Figure 3 shown in the figure, the rotary clamping mechanism 200 includes a first mounting seat 210 slidably arranged on the frame 100 through a slide rail and guide block structure. A first automatic telescopic cylinder 220 for pushing the first mounting seat 210 to slide is arranged on the frame 100 outside the first mounting seat 210. A second support shaft 230 is vertically arranged on the first mounting seat 210. A lower clamping plate 240 is arranged at the top of the second support shaft 230. A motor 250 for driving the second support shaft 230 to rotate is arranged at the bottom of the first mounting seat 210. A support frame 260 is arranged on the upper part of the first mounting seat 210. A second automatic telescopic cylinder 270 is vertically arranged on the support frame 260. A free end of the second automatic telescopic cylinder 270 is rotatably arranged with an upper clamping plate 280 cooperating with the lower clamping plate 240.

[0033] In this embodiment, after the rotary clamping mechanism 200 adopts the above structure, the bottom sides of the basin-shaped thin-walled workpiece can be clamped by the lower clamping plate 240 and the upper clamping plate 280. Moreover, since the upper clamping plate 280 is rotatably connected to the free end of the second automatic telescopic cylinder, it does not affect the rotation of the basin-shaped thin-walled workpiece. At the same time, the first automatic telescopic cylinder 220 can drive the first mounting seat 210 and its upper parts to realize horizontal advancement and retraction through the slide rail and guide block structure, which is convenient for loading and unloading the basin-shaped thin-walled workpiece.

[0034] According to an embodiment of the present invention, the first automatic telescopic cylinder 220 adopts an electric telescopic cylinder. In this embodiment, the first automatic telescopic cylinder 220 adopts an electric telescopic cylinder. Obviously, it is not limited to adopting an electric telescopic cylinder, and other types can also be adopted, such as a hydraulic telescopic cylinder or a pneumatic telescopic cylinder.

[0035] According to an embodiment of the present invention, the second automatic telescopic cylinder 270 adopts an electric telescopic cylinder. In this embodiment, the second automatic telescopic cylinder 270 adopts an electric telescopic cylinder. Obviously, it is not limited to adopting an electric telescopic cylinder, and other types can also be adopted, such as a hydraulic telescopic cylinder or a pneumatic telescopic cylinder.

[0036] According to an embodiment of the present invention, as Figure 3 shown, in order to make the distance between the inner end of the punching mechanism 300 and the rotary clamping mechanism 200 smaller, so that the punching device can be applicable to the peripheral punching of a basin-shaped thin-walled workpiece with a smaller size, a notch 290 is provided on the first mounting seat 210 inside the second support shaft 230, and the inner end of the punching mechanism 300 is located in the notch 290.

[0037] According to an embodiment of the present invention, as Figure 1 shown, the inner end position adjustment mechanism 400 includes a rectangular frame 410 provided on the frame 100. A support plate 420 is slidably arranged up and down in the rectangular frame 410. A keyway hole 430 is horizontally provided on the support plate 420. Support columns 440 are threadedly connected to the rectangular frame 410 below both ends of the support plate 420. The upper end of the support column 440 supports the bottom of the support plate 420. The end of the first support shaft 302 is clamped in the keyway hole 430 at the same end and is fastened by a first rubber head screw 450.

[0038] In this embodiment, after the inner end position adjustment mechanism 400 adopts the above structure, the height of the support plate 420 can be adjusted by using the support column 440, and then the height of the inner end of the punching mechanism 300 can be adjusted. By adjusting the angle of the first support shaft 302 in the keyway hole 430, the angle of the inner end of the punching mechanism 300 can be adjusted; at the same time, the end of the first support shaft 302 is fastened by using the first rubber head screw 450.

[0039] According to an embodiment of the present invention, as Figure 4 shown, in order to improve the stability of the support plate 420 and prevent it from shifting laterally in the rectangular frame 410, tightening rods 460 for tightening the ends of the support plate 420 are threadedly connected to both sides of the rectangular frame 410 respectively.

[0040] According to an embodiment of the present invention, as Figure 4As shown, the outer end position adjustment mechanism 500 includes a U-shaped clamping seat 510 and a vertical plate 520. The U-shaped clamping seat 510 is clamped on one side edge of the outer end of the punching mechanism 300 and is fastened by a second rubber head screw 530. The vertical plate 520 is arranged on the frame 100. An adjustment long slot 540 is vertically formed on the vertical plate 520. A threaded connecting rod 550 is arranged on the side surface of the vertical plate 520. The threaded connecting rod 550 passes through the adjustment long slot 540 and is fastened by a rubber head nut 560.

[0041] In this embodiment, after the outer end position adjustment mechanism 500 adopts the above structure, on the one hand, the height of the outer end of the punching mechanism 300 can be adjusted through the adjustment long slot 540 on the vertical plate 520, and on the other hand, the height can be locked by using the rubber head nut 560.

[0042] According to an embodiment of the present invention, as Figure 1 shown, in order to improve the connection stability between the punching mechanism 300 and the frame 100 and avoid shaking, a lower triangular support seat 110 is arranged on the frame 100 between the two outer end position adjustment mechanisms 500. An upper triangular support seat 120 matched with the lower triangular support seat 110 is arranged at the bottom of the outer end of the punching mechanism 300. The lower triangular support seat 110 and the upper triangular support seat 120 are hinged by a hinge shaft 130, and the shaft hole on the lower triangular support seat 110 or the upper triangular support seat 120 matched with the hinge shaft 130 is a long slot hole 140.

[0043] According to an embodiment of the present invention, as Figure 2 and Figure 4 shown, the punching mechanism 300 includes a second mounting seat 310. A fixed die 320 is installed at the upper part of the inner end of the second mounting seat 310. A movable die 330 matched with the fixed die 320 is slidably arranged on the second mounting seat 310 on both sides of the fixed die 320 through a slide rail and guide block structure. A third automatic telescopic cylinder 340 is arranged at the upper part of the outer end of the second mounting seat 310. The free end of the third automatic telescopic cylinder 340 is connected to the outer side of the movable die 330.

[0044] In this embodiment, after the punching mechanism 300 adopts the above structure, the fixed die 320 can be attached to the surface of the basin-shaped thin-walled workpiece, and then the movable die 330 completes the punching operation driven by the third automatic telescopic cylinder 340.

[0045] According to an embodiment of the present invention, the third automatic telescopic cylinder 340 adopts an electric telescopic cylinder. In this embodiment, the third automatic telescopic cylinder 340 adopts an electric telescopic cylinder. Obviously, it is not limited to adopting an electric telescopic cylinder, and other types can also be adopted, such as a hydraulic telescopic cylinder or a pneumatic telescopic cylinder.

[0046] According to an embodiment of the present invention, as Figure 4 shown, a roller 360 is rotatably arranged on the second mounting seat 310 located outside the fixed mold 320 through a wheel frame 350, and the roller 360 is located at the bottom of the moving mold 330.

[0047] In this embodiment, a roller 360 is rotatably arranged on the second mounting seat 310 located outside the fixed mold 320 through a wheel frame 350, which can ensure the smoothness of the advancement and withdrawal of the moving mold.

[0048] According to an embodiment of the present invention, as Figure 1 and Figure 2 shown, in order to centrally collect the waste generated during the punching process, a waste collection bucket 600 is placed in the frame 100 below the inner end of the punching mechanism 300.

[0049] The working method (or working principle) of the present invention:

[0050] As Figure 5 shown, during operation, a basin-shaped thin-walled workpiece is placed on the lower clamping plate 240 of the rotary clamping mechanism 200, the second automatic telescopic cylinder 270 drives the lower clamping plate 240 to press down until it presses the basin-shaped thin-walled workpiece, the first automatic telescopic cylinder 220 pushes the clamped basin-shaped thin-walled workpiece backward so that the surface of the basin-shaped thin-walled workpiece adheres to the surface of the fixed mold 320, and the third automatic telescopic cylinder 340 drives the moving mold 330 to move towards the fixed mold 320 to complete one punching; then, the third automatic telescopic cylinder 340 drives the moving mold 330 to be pushed back to disengage from the cooperation with the fixed mold 320, the first automatic telescopic cylinder 220 pushes the rotary clamping mechanism 200 to the initial position, meanwhile the motor 250 drives the basin-shaped thin-walled workpiece to rotate by an angle, the first automatic telescopic cylinder 220 pulls the rotary clamping mechanism 200 backward so that the surface of the basin-shaped thin-walled workpiece adheres to the surface of the fixed mold 320, and the third automatic telescopic cylinder 340 drives the moving mold 330 to move towards the fixed mold 320 to complete one punching, and so on until all punching is completed. The present invention is not only applicable to the punching processing of basin-shaped thin-walled workpieces with different numbers and densities of peripheral punching, but also applicable to the punching processing of basin-shaped thin-walled workpieces with different punching angles and heights.

[0051] In the present invention, unless otherwise clearly specified and limited, 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. Unless otherwise clearly limited, 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.

[0052] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A punching device for the periphery of a horizontal basin-shaped thin-walled workpiece of an electric heater, characterized in that: It includes a frame (100). On one side of the upper part of the frame (100), a rotary clamping mechanism (200) is slidably arranged for vertically clamping and horizontally rotating a thin-walled basin-shaped workpiece. On the other side of the upper part of the frame (100), a punching mechanism (300) that cooperates with the rotary clamping mechanism (200) is arranged. The inner end of the punching mechanism (300) is lower than the outer end. At the bottom of the inner end of the punching mechanism (300), a first support shaft (302) is horizontally rotatably arranged through a shaft seat (301). Both ends of the first support shaft (302) are arranged on the frame (100) through an inner-end position adjustment mechanism (400). The height and horizontal position of the inner end of the punching mechanism (300) are adjusted through the inner-end position adjustment mechanism (400). Both sides of the outer end of the punching mechanism (300) are vertically adjustably arranged on the frame (100) through an outer-end position adjustment mechanism (500); The inner-end position adjustment mechanism (400) includes a rectangular frame (410) arranged on the frame (100). A support plate (420) is slidably arranged up and down inside the rectangular frame (410). A keyway hole (430) is horizontally opened on the support plate (420). Support columns (440) are threadedly connected to the rectangular frame (410) below both ends of the support plate (420). The upper ends of the support columns (440) support the bottom of the support plate (420). The end of the first support shaft (302) is clamped in the keyway hole (430) at the same end and is fastened through a first rubber-headed screw (450); The outer-end position adjustment mechanism (500) includes a U-shaped clamping seat (510) and a vertical plate (520). The U-shaped clamping seat (510) is clamped on the edge of one side of the outer end of the punching mechanism (300) and is fastened through a second rubber-headed screw (530). The vertical plate (520) is arranged on the frame (100). An adjustment long slot (540) is vertically opened on the vertical plate (520). A threaded connecting rod (550) is arranged on the side surface of the vertical plate (520). The threaded connecting rod (550) passes through the adjustment long slot (540) and is fastened through a rubber-headed nut (560).

2. The peripheral punching device for the horizontal basin-shaped thin-walled workpiece of the electric heater as described in claim 1, wherein: The rotary clamping mechanism (200) includes a first mounting seat (210) slidably arranged on the frame (100) through a slide rail and guide block structure. A first automatic telescopic cylinder (220) for pushing the first mounting seat (210) to slide is arranged on the frame (100) outside the first mounting seat (210). A second support shaft (230) is vertically arranged on the first mounting seat (210). A lower clamping plate (240) is arranged at the top of the second support shaft (230). A motor (250) for driving the second support shaft (230) to rotate is arranged at the bottom of the first mounting seat (210). A support frame (260) is arranged at the upper part of the first mounting seat (210). A second automatic telescopic cylinder (270) is vertically arranged on the support frame (260). The free end of the second automatic telescopic cylinder (270) is rotatably provided with an upper clamping plate (280) that cooperates with the lower clamping plate (240).

3. The peripheral punching device for the horizontal basin-shaped thin-walled workpiece of the electric heater as described in claim 2, wherein: A notch (290) is formed in the first mounting seat (210) inside the second support shaft (230), and the inner end of the punching mechanism (300) is located in the notch (290).

4. The peripheral punching device for the horizontal basin-shaped thin-walled workpiece of the electric heater, characterized in that: Tightening rods (460) for tightening the ends of the support plate (420) are respectively threadedly connected to both sides of the rectangular frame (410).

5. The peripheral punching device for the horizontal basin-shaped thin-walled workpiece of the electric heater, characterized in that: A lower triangular support seat (110) is arranged on the frame (100) between two outer end position adjustment mechanisms (500). An upper triangular support seat (120) that cooperates with the lower triangular support seat (110) is arranged at the bottom of the outer end of the punching mechanism (300). The lower triangular support seat (110) and the upper triangular support seat (120) are hinged through a hinge shaft (130), and the shaft hole on the lower triangular support seat (110) or the upper triangular support seat (120) that cooperates with the hinge shaft (130) is a long slot hole (140).

6. The peripheral punching device for the horizontal basin-shaped thin-walled workpiece of the electric heater, characterized in that: The punching mechanism (300) includes a second mounting seat (310). A fixed die (320) is installed at the upper part of the inner end of the second mounting seat (310). A movable die (330) that cooperates with the fixed die (320) is slidably arranged on the second mounting seat (310) on both sides of the fixed die (320) through a slide rail and guide block structure. A third automatic telescopic cylinder (340) is arranged at the upper part of the outer end of the second mounting seat (310). The free end of the third automatic telescopic cylinder (340) is connected to the outside of the movable die (330).

7. The punching device for the periphery of the horizontal basin-shaped thin-walled workpiece of the electric heater as described in claim 6, wherein: A roller (360) is rotatably arranged on the second mounting seat (310) outside the fixed die (320) through a wheel frame (350), and the roller (360) is located at the bottom of the movable die (330).

8. The peripheral punching device for the horizontal basin-shaped thin-walled workpiece of the electric heater, as described in any one of claims 1 to 7, is characterized in that: A waste collection bucket (600) is placed inside the frame (100) below the inner end of the punching mechanism (300).

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