A positioning and fastening device for a high and low voltage switchgear heat sink forming machine.
By designing a positioning and fastening device for the clamping plate and pressure roller, the problem of the heat sink plate lifting during processing was solved, enabling horizontal clamping and precise cutting of the heat sink plate and improving processing accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI NANYANG ELECTRIC APPLIANCES COMPLETE SET EQUIP CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-30
AI Technical Summary
During the heat sink processing, the clamping mechanism cannot effectively prevent the plate from warping, resulting in deviation of the cutting groove and reducing processing accuracy.
A positioning and fastening device including a clamping plate and a pressure roller was designed. The clamping plate holds the heat sink and the pressure roller presses it down to ensure that the heat sink is horizontal. Combined with a servo motor and transmission system, the cutting machine can be accurately positioned and slide horizontally.
It effectively prevents the edges and corners of the heat sink from warping, ensures the accuracy of the cutting process, and improves the processing precision of the heat sink.
Smart Images

Figure CN224424419U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat sink processing technology, specifically to a positioning and fastening device for a high and low voltage switchgear heat sink forming machine. Background Technology
[0002] High and low voltage switchgear integrates a large number of electronic components. These components generate a lot of heat during operation. If the heat cannot be dissipated in time, it may cause the equipment temperature to rise, leading to performance degradation, malfunctions, or even safety accidents. Heat sinks help to effectively dissipate heat from the cabinet through heat conduction and dissipation, maintaining the equipment within a suitable temperature range, thereby ensuring the stable operation of the switchgear and the reliability of the power system.
[0003] In the processing of heat sinks, in order to increase the contact area between the heat sink and the air, it is often necessary to set equally spaced grooves on its surface. Therefore, surface cutting of the heat sink is an important operation step in the processing and shaping of the heat sink. During the cutting process, clamping mechanisms such as clamps are usually used to fix the heat sink. When processing the same plate, continuous feeding is required. If the adhesive on the plate structure peels up during this process, and the horizontal clamping parts cannot press down on the peeling parts, it will cause a certain deviation in the cut grooves, reducing the accuracy of heat sink processing. Utility Model Content
[0004] The purpose of this utility model is to provide a positioning and fastening device for a high and low voltage power distribution cabinet heat sink plate processing and forming machine, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: A processing box is included, with openings on both sides. A feeding platform and a discharging platform are fixed to the outer sides of the openings, respectively. An inner support base is fixed inside the processing box, with its upper end flush with the upper ends of the feeding and discharging platforms. A fixing component is provided on the upper end of the inner support base. A track plate is fixed inside the processing box and above the support base. A cutting machine is slidably connected to the track plate. The fixing component includes a clamping plate and a pressure roller. The clamping plate is slidably connected to the upper end of the inner support base. The pressure roller is mounted on the upper end of the clamping plate, close to one side, and connected via a connecting rod. The end of the connecting rod is hinged to the upper end of the clamping plate, and a torsion spring is provided at the connection point. The front end of the connecting rod is rotatably connected to the pressure roller.
[0006] Preferably, the clamping plates are provided in two pairs and are symmetrically distributed on the upper end of the inner support base, and the cutting machine is located between the two pairs of clamping plates.
[0007] Preferably, a drive groove is provided at the upper end of the inner support base and at a position corresponding to the clamping plate. A bidirectional lead screw is rotatably connected in the drive groove. A drive block is provided in the drive groove and at a position corresponding to the clamping plate. The upper end of the drive block is fixedly connected to the drive groove. The bidirectional lead screw passes through the drive block and is threadedly connected to the drive block.
[0008] Preferably, a transmission box is fixed to the outside of the inner support base, a servo motor is fixed to the outside of the transmission box, the output end of the servo motor is located inside the transmission box and is fixedly connected to a drive sprocket, the end of the bidirectional lead screw is located inside the transmission box and is fixedly connected to a transmission sprocket, and the drive sprocket and the transmission sprocket are connected by a transmission chain.
[0009] Preferably, an anti-slip pad is fixed to the side of the clamping plate that is close to each other to increase the stability of the clamping plate.
[0010] Preferably, the cutting machine consists of a cutting machine frame, a drive motor, and saw blades. The drive motor is fixed inside the cutting machine frame. Five saw blades are arranged coaxially and equidistantly. A sliding block is fixed on the outside of the cutting machine frame. The sliding block is slidably connected to the track plate. A telescopic cylinder for driving the sliding block to slide is fixed inside the track plate.
[0011] Compared with the prior art, the beneficial effects of this utility model are: the surface of the heat sink is cut using a cutting machine, and before the heat sink is clamped and fixed, the upper part of the heat sink is pressed down by a pressure roller to reduce the corners of the heat sink from lifting and avoid the problem of the heat sink being cut in an uneven state. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the internal structure of the positioning and fastening device processing box of a high and low voltage power distribution cabinet heat sink plate processing and forming machine according to the present invention.
[0013] Figure 2 This is a schematic diagram of the positioning and fastening device fixing component of a high and low voltage power distribution cabinet heat sink plate processing and forming machine according to the present invention.
[0014] Figure 3 This is a schematic diagram of the internal structure of the positioning and fastening device of the high and low voltage power distribution cabinet heat sink plate processing and forming machine according to the present invention.
[0015] In the diagram: 1. Processing box; 2. Feeding platform; 3. Discharge platform; 4. Inner support seat; 5. Cutting machine outer frame; 51. Sliding block; 52. Drive motor; 53. Saw blade; 6. Fixing assembly; 61. Drive groove; 62. Drive block; 63. Clamping plate; 64. Two-way lead screw; 65. Pressure roller; 66. Connecting rod; 67. Anti-slip pad; 7. Servo motor; 71. Drive sprocket; 8. Transmission box; 81. Transmission sprocket; 82. Transmission chain; 9. Track plate; 91. Telescopic cylinder. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Please see Figure 1-3 This utility model provides a technical solution: it includes a processing box 1, with openings on both sides of the processing box 1, and a feeding platform 2 and a discharging platform 3 fixed on the outer side of the openings respectively. An inner support base 4 is fixed inside the processing box 1, with the upper end of the inner support base 4 being flush with the upper ends of the feeding platform 2 and the discharging platform 3. A fixing component 6 is provided on the upper end of the inner support base 4. A track plate 9 is fixed inside the processing box 1 and above the support base, and a cutting machine is slidably connected to the track plate 9.
[0018] The fixing component 6 includes a clamping plate 63 and a pressure roller 65. The clamping plate 63 is slidably connected to the upper end of the inner support base 4. The pressure roller 65 is installed on the upper end of the clamping plate 63 and is connected by a connecting rod 66. The end of the connecting rod 66 is hinged to the upper end of the clamping plate 63, and a torsion spring is provided at the connection. The front end of the connecting rod 66 is rotatably connected to the pressure roller 65. There are two pairs of clamping plates 63, which are symmetrically distributed on the upper end of the inner support base 4. The cutting machine is located between the two pairs of clamping plates 63. A drive groove 61 is opened on the upper end of the inner support base 4 and at the position corresponding to the clamping plate 63. A bidirectional lead screw 64 is rotatably connected in the drive groove 61. A drive block 62 is opened in the drive groove 61 and at the position corresponding to the clamping plate 63. The upper end of the drive block 62 is fixedly connected to the drive groove 61. The bidirectional lead screw 64 passes through the drive block 62 and is threadedly connected to the drive block 62. An anti-slip pad 67 is fixed on the side of the clamping plate 63 that is close to the clamping plate 63.
[0019] A transmission box 8 is fixed to the outside of the inner support base 4. A servo motor 7 is fixed to the outside of the transmission box 8. The output end of the servo motor 7 is located inside the transmission box 8 and is fixedly connected to a drive sprocket 71. The end of the bidirectional lead screw 64 is located inside the transmission box 8 and is fixedly connected to a drive sprocket 81. The drive sprocket 71 and the drive sprocket 81 are connected by a drive chain 82. The output end of the servo motor 7 drives the drive sprocket 71 to rotate. Then, the drive chain 82 and the drive sprocket 81 drive the bidirectional lead screw 64 to rotate.
[0020] The cutting machine consists of a cutting machine frame 5, a drive motor 52, and saw blades 53. The drive motor 52 is fixed inside the cutting machine frame 5. Five saw blades 53 are arranged coaxially and equidistantly. A sliding block 51 is fixed on the outside of the cutting machine frame 5. The sliding block 51 is slidably connected to the track plate 9. A telescopic cylinder 91 is fixed inside the track plate 9 to drive the sliding block 51 to slide. Driven by the telescopic cylinder 91, the bottom of the saw blade 53 of the cutting machine passes through the upper surface of the heat sink to a specified depth, thus completing the grooving process.
[0021] Working principle: First, connect the entire device to an external power source. Then, insert the heat sink plate into the processing box 1 from the feeding platform 2. After processing, it flows out from the discharge platform 3. During this process, the heat sink plate enters the upper part of the processing box 1, and its bottom is located on the inner support base 4. At this time, the heat sink plate can be held and fixed by the sliding of the clamping plate 63. At the same time, a pressure roller 65 is provided on the side close to the clamping plate 63 and is connected to the clamping plate 63 by a torsion spring. Before the clamping plate 63 holds and fixes the heat sink plate, the pressure roller 65 will roll above the heat sink plate and be reset by the torsion spring. Force is applied to press down on the heat sink to ensure that the bottom of the heat sink is in contact with the upper end of the inner support 4, thereby ensuring the heat sink is horizontal. At this time, driven by the telescopic cylinder 91, the bottom of the saw blade 53 of the cutting machine passes through the upper surface of the heat sink to a specified depth to complete the grooving process. Throughout the process, the clamping plate 63 is driven by the output end of the servo motor 7 to drive the drive sprocket 71 to rotate. Then, through the transmission of the transmission chain 82 and the transmission sprocket 81, the bidirectional lead screw 64 can be driven to rotate, so that the drive block 62 and the clamping plate 63 can achieve the purpose of horizontal sliding.
[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A positioning and fastening device of a high-low voltage power distribution cabinet heat dissipation plate processing and forming machine, comprising a processing box (1), characterized in that: The processing box (1) has openings on both sides, and a feeding platform (2) and a discharging platform (3) are fixed on the outside of the openings respectively. An inner support base (4) is fixed inside the processing box (1). The upper end of the inner support base (4) is level with the upper end of the feeding platform (2) and the discharging platform (3). A fixing component (6) is provided on the upper end of the inner support base (4). A track plate (9) is fixed inside the processing box (1) and above the support base. A cutting machine is slidably connected on the track plate (9). The fixing component (6) includes a clamping plate (63) and a pressure roller (65). The clamping plate (63) is slidably connected to the upper end of the inner support base (4). The pressure roller (65) is installed on the upper end of the clamping plate (63) on the side close to it and is connected by a connecting rod (66). The end of the connecting rod (66) is hinged to the upper end of the clamping plate (63), and a torsion spring is provided at the connection. The front end of the connecting rod (66) is rotatably connected to the pressure roller (65).
2. The positioning and fastening device of the high-low voltage power distribution cabinet heat dissipation plate processing and forming machine according to claim 1, characterized in that: The clamping plates (63) are provided in two pairs and are symmetrically distributed on the upper end of the inner support base (4). The cutting machine is located between the two pairs of clamping plates (63).
3. The positioning and fastening device of the high-low voltage power distribution cabinet heat dissipation plate processing and forming machine according to claim 1, characterized in that: The inner support base (4) has a drive groove (61) at its upper end and corresponding to the clamping plate (63). A bidirectional lead screw (64) is rotatably connected in the drive groove (61). A drive block (62) is provided in the drive groove (61) and corresponding to the clamping plate (63). The upper end of the drive block (62) is fixedly connected to the drive groove (61). The bidirectional lead screw (64) passes through the drive block (62) and is threadedly connected to the drive block (62).
4. The positioning and fastening device of the high-low voltage power distribution cabinet heat dissipation plate processing and forming machine according to claim 3, characterized in that: A transmission box (8) is fixed to the outside of the inner support base (4), and a servo motor (7) is fixed to the outside of the transmission box (8). The output end of the servo motor (7) is located inside the transmission box (8) and is fixedly connected to a drive sprocket (71). The end of the bidirectional lead screw (64) is located inside the transmission box (8) and is fixedly connected to a transmission sprocket (81). The drive sprocket (71) and the transmission sprocket (81) are connected by a transmission chain (82).
5. The positioning and fastening device of the high-low voltage power distribution cabinet heat dissipation plate processing and forming machine according to claim 1, characterized in that: An anti-slip pad (67) is fixed to the side of the clamp (63) closest to it.
6. The positioning and fastening device of the high-low voltage power distribution cabinet heat dissipation plate processing and forming machine according to claim 1, characterized in that: The cutting machine consists of a cutting machine frame (5), a drive motor (52), and saw blades (53). The drive motor (52) is fixed inside the cutting machine frame (5). Five saw blades (53) are arranged coaxially and equidistantly. A sliding block (51) is fixed on the outside of the cutting machine frame (5). The sliding block (51) is slidably connected inside the track plate (9). A telescopic cylinder (91) for driving the sliding block (51) to slide is fixed inside the track plate (9).