Crimping tool

Abstract

The embodiment of the utility model discloses a crimping tool, which comprises a bottom plate, a positioning plate and a hold-down assembly, a guide shaft of the hold-down assembly is movably connected with a mounting bearing, a pressure head is connected to the bottom end of the guide shaft, and an elastic element is connected between the mounting bearing and the pressure head. The guide shaft drives the pressure head to move up and down relative to the installation bearing seat so as to adjust the pressure of the elastic element, the pressure adjusting nut is fastened on the guide shaft after adjustment so as to fix the relative position of the pressure head and the installation bearing seat, and the installation bearing seat is detachably connected with the positioning plate. And the positioning plate drives the pressing assembly to synchronously move relative to the bottom plate so as to press the power tube on the radiator. The pressure head of the crimping tool is detachably connected with the positioning plate through the mounting bearing seat, so that the pressure head can be used as a standard pressure head of a corresponding power tube after being adjusted, the operation of a plurality of power tubes does not need to be adjusted again, the pressure stability and the usability of the pressure head are improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of electronic product production tooling, in particular to a crimping tooling. Background Art

[0002] With the development of the electronics industry, energy storage and server power products are widely used. As the power element of the final output in the amplifier circuit, the power tube in the power supply products plays an indispensable role in the electronic circuit. Before wave soldering of power supply products, the power tube needs to be crimped and assembled on the heat sink.

[0003] In the current crimping tooling, multiple pressure heads are arranged opposite to the positioning plate, and multiple pressure heads pass through the positioning holes of the positioning plate through their respective fixedly connected guide shafts. The spring sleeve is arranged on the guide shaft and is located between the positioning plate and the pressure head. The guide shaft drives the pressure head to move relative to the positioning plate to adjust the pressure of the spring, and after adjustment, the guide shaft is locked by the pressure adjustment nut. The pressure head cannot be moved after adjustment. Once it moves, the pressure adjustment nut needs to be loosened, and the guide shaft and the positioning plate need to be separated before it can be moved to other positions of the positioning plate, and then re-adjusted. The accuracy of the pressure adjustment of the pressure head is greatly affected, the use range of the tooling is single, and the cost is high. Utility Model Content

[0004] In view of this, an embodiment of the utility model provides a crimping tool, which can be used as a standard crimping head for the corresponding power tube after adjustment. There is no need to readjust during the movement, which enables fast switching, improves the usability of the crimping head, and reduces costs.

[0005] The present invention provides a crimping tool, which comprises:

[0006] The bottom plate is used to place the power tubes and the radiator;

[0007] A positioning plate, the positioning plate is arranged opposite to the bottom plate, and the positioning plate moves relative to the bottom plate;

[0008] At least one pressing assembly, the pressing assembly comprising a mounting seat, a pressure head, at least one guide shaft, at least one pressure adjusting nut and at least one elastic element, the mounting seat being arranged opposite to the pressure head, the mounting seat comprising at least one first receiving hole, the guide shaft moving through the first receiving hole, the pressure head being connected to the bottom end of the guide shaft, the elastic element being connected between the mounting seat and the pressure head, the guide shaft driving the pressure head to move up and down relative to the mounting seat to adjust the pressure of the elastic element, and the pressure adjusting nut being fastened to the guide shaft to fix the relative position of the pressure head and the mounting seat;

[0009] The mounting seat is detachably connected to the positioning plate, and the positioning plate drives the pressing assembly to move synchronously relative to the base plate so as to press the power tube onto the radiator.

[0010] Further, the positioning plate is installed with a first magnetic component, and the mounting seat is installed with a second magnetic component magnetically connected to the first magnetic component; or, the positioning plate is installed with a first magnetic component, and the mounting seat is a magnetic mounting seat.

[0011] Furthermore, the positioning plate includes at least one connecting through-slot, the first magnetic attraction component is installed in the connecting through-slot, and the mounting seat and the first magnetic attraction component are magnetically fixedly installed in the connecting through-slot.

[0012] Furthermore, the positioning plate has a first connecting hole, the mounting seat has a second connecting hole, and the positioning plate and the mounting seat are connected and fixed in the first connecting hole and the second connecting hole by a first fastener.

[0013] Furthermore, the guide shaft includes a threaded section and a connecting section, the threaded section passes through the first receiving hole and is located on a side of the mounting base away from the pressure head, the pressure head is connected below the connecting section, and the guide shaft drives the pressure head to move up and down relative to the mounting base.

[0014] Furthermore, the pressure head includes at least one first connecting hole and at least one second connecting hole, the second connecting hole is vertically connected to the first connecting hole, the connecting section includes a third connecting hole perpendicular to the axis, the connecting section is inserted into the first connecting hole and passes through the third connecting hole and the second connecting hole in sequence through a second fastener to connect to the pressure head.

[0015] Furthermore, the holding assembly also includes a guide bearing, the first receiving hole includes a coaxially connected moving hole and a mounting hole, the size of the mounting hole is larger than the moving hole, the guide bearing is fixedly installed in the mounting hole, and the guide shaft passes through the moving hole and the guide bearing in turn.

[0016] Furthermore, the elastic element is a spring, which is sleeved on the connecting section.

[0017] Furthermore, the crimping tool comprises:

[0018] A limiting plate, mounted on the bottom plate, the limiting plate having a lateral limiting groove;

[0019] The top plate is connected above the positioning plate through an intermediate support plate, and an adjustment space is formed between the top plate and the positioning plate.

[0020] Furthermore, the pressure head includes a fixing seat and a rubber pad, the guide shaft is connected to the fixing seat, and the rubber pad is arranged below the fixing seat.

[0021] The embodiment of the utility model provides a crimping tool, which includes a base plate, a positioning plate and a holding assembly. The guide shaft of the holding assembly is movably connected to the mounting seat, the pressure head is connected to the bottom end of the guide shaft, the elastic element is connected between the mounting seat and the pressure head, the guide shaft drives the pressure head to move up and down relative to the mounting seat to adjust the pressure of the elastic element, and after adjustment, the pressure adjustment nut is fastened to the guide shaft to fix the relative position of the pressure head and the mounting seat, the mounting seat is detachably connected to the positioning plate, and the positioning plate drives the holding assembly to move synchronously relative to the base plate to crimp the power tube onto the radiator. The pressure head of the crimping tool is detachably connected to the positioning plate through the mounting seat, so that the pressure head can be used as a standard pressure head corresponding to the power tube after adjustment, and the operation of multiple power tubes does not need to be re-adjusted, thereby improving the pressure stability and the flexibility of the pressure head and reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and other purposes, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0023] Figure 1 This is a schematic structural diagram of a crimping tooling according to an embodiment of the utility model;

[0024] Figure 2 It is an exploded schematic diagram of the crimping tooling of the embodiment of the utility model;

[0025] Figure 3 is a cross-sectional view of a pressing assembly of an embodiment of the utility model fixed on a positioning plate;

[0026] Figure 4 It is a structural schematic diagram of a pressing assembly of an embodiment of the utility model;

[0027] Figure 5 It is an exploded schematic diagram of the pressing and holding assembly of an embodiment of the utility model;

[0028] Figure 6 It is a structural schematic diagram of a positioning plate according to an embodiment of the utility model;

[0029] Figure 7 This is a schematic structural diagram of the positioning plate of an embodiment of the utility model from another angle;

[0030] Figure 8 It is a connection diagram of a positioning plate and a mounting seat according to another embodiment of the utility model.

[0031] Reference numerals:

[0032] 1-bottom plate; 2-positioning plate; 20-first fastener; 21-first magnetic attraction; 22-connecting slot; 23-first mounting hole; 3-pressing assembly; 31-mounting seat; 311-first receiving hole; 312-moving hole; 313-bearing hole; 314-second mounting hole; 32-pressing head; 321-first connecting hole; 322-second connecting hole; 323-fixing seat; 324-rubber pad; 33-guide shaft; 331-screwed section; 332-connecting section; 333-third connecting hole; 34-pressure adjusting nut; 35-elastic element; 36-guide bearing; 4-second fastener; 5-limiting plate; 51-lateral limiting slot; 6-top plate; 7-middle support plate; 71-adjusting space; 8-power tube; 9-radiator. DETAILED DESCRIPTION

[0033] The present application is described below based on embodiments, but the present application is not limited to these embodiments. In the detailed description of the present application below, some specific details are described in detail. It is possible for those skilled in the art to fully understand the present application without the description of these details. In order to avoid confusing the essence of the present application, known methods, processes, flows, components and circuits are not described in detail.

[0034] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.

[0035] Unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] Unless the context clearly requires otherwise, the words "include", "comprising" and similar words throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0037] In the description of this application, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0038] Figure 1 and Figure 2The crimping tool is used to crimp the power tube to the radiator. Through the crimping operation of the crimping tool, the power tubes of the same model or batch can be crimped to the radiator with the same pressure, thereby improving the stability and uniformity of the pressure.

[0039] like Figure 1 and Figure 2 As shown, the crimping tool includes a base plate 1, a positioning plate 2 and at least one pressing assembly 3. The base plate 1 is used to place the power tube 8 and the heat sink 9. The positioning plate 2 is arranged opposite to the base plate 1 and is located above the base plate 1. The positioning plate 2 can move relative to the base plate 1. The pressing assembly 3 is connected to the positioning plate 2 in a detachable manner, and the positioning plate 2 can drive the pressing assembly 3 to move up and down to crimp the power tube 8 onto the heat sink 9 according to a predetermined pressure, thereby completing the assembly of the power tube 8 and the heat sink 9. After adjusting the pressure, the pressing assembly 3 can be moved as a whole to different positions of the positioning plate 2, and the operation can be carried out without re-adjustment, thereby improving the operation speed.

[0040] like Figure 4 and Figure 5 As shown, the pressing assembly 3 includes a mounting seat 31, a pressure head 32, at least one guide shaft 33, at least one pressure adjustment nut 34 and at least one elastic element 35. The mounting seat 31 is detachably connected to the positioning plate 2, so that the pressing assembly 3 can be disassembled / installed from the positioning plate 2 by disassembling / installing the mounting seat 31 from the positioning plate 2. That is, the adjustment displacement (movement) of the pressure head 32, the guide shaft 33 and other parts in the pressing assembly 3 is independent of the positioning plate 2, and the pressing assembly 3 still maintains the current adjustment pressure after being disconnected from the positioning plate 2, and no re-adjustment is required.

[0041] The mounting seat 31 is arranged opposite to the pressure head 32, and the pressure head 32 can move relative to the mounting seat 31. The guide shaft 33 is connected to the mounting seat 31 for movement, and the pressure head 32 is fixed to the bottom end of the guide shaft 33. The pressure adjustment nut 34 is threadedly connected to the end of the guide shaft 33 away from the pressure head 32 and is located on the side of the mounting seat 31 away from the pressure head 32. The guide shaft 33 can drive the pressure head 32 to move up and down, and after the pressure head 32 is adjusted to the corresponding position according to the pressure movement, the guide shaft 33 is locked by the pressure adjustment nut 34, thereby locking the pressure head 32 and completing the pressure adjustment.

[0042] When the mounting base 31 and the positioning plate 2 are fixedly installed, the pressure head 32 is located below the positioning plate 2, and the pressure head 32 can be moved relative to the mounting base 31 through the guide shaft 33, so as to achieve up and down movement relative to the positioning plate 2, and is connected to the guide shaft 33 through the pressure adjustment nut 34 so that the relative position of the pressure head 32 and the mounting base 31 is fixed, thereby achieving adjustment. Among them, after the mounting base 31 and the positioning plate 2 are installed, the guide shaft 33 can pass through the other side of the positioning plate 2, thereby facilitating the movement of the guide shaft 33 during the adjustment of the pressure head 32. After the pressure adjustment of the holding assembly 3 is completed, it can be used as a standard pressure piece, and the same power tube can be operated without the need for pressure adjustment every time. At the same time, the holding assembly 3 can be fixed at any position of the positioning plate 2, and there is no interference problem of multiple holding assemblies 3.

[0043] The pressing assembly 3 further includes an elastic element 35, such as Figure 4 As shown. The elastic element 35 is connected between the mounting seat 31 and the pressure head 32. When the pressure head 32 moves relative to the mounting seat 31, the length of the elastic element 35 can be changed, so that the elastic element 35 maintains elastic force. The elastic element 35 can be used to provide pressure to the pressure head 32, so that the pressure head 32 can maintain the adjusted pressure stable. The elastic element 35 can be a spring, which is sleeved on the guide shaft 33 and is located between the mounting seat 31 and the pressure head 32.

[0044] The mounting base 31 includes at least one first receiving hole 311. Figure 5 As shown. The guide shaft 33 passes through the first receiving hole 311 and is movably connected to the mounting seat 31. The first receiving hole 311 can provide a guiding effect for the movement of the guide shaft 33. Among them, the number of the first receiving holes 311 can be 2 or more, and the number of the guide shafts 33 is consistent with the number of the first receiving holes 311. That is, each guide shaft 33 is connected to the mounting seat 31 through a first receiving hole 311. The bottom ends of the multiple guide shafts 33 connected to the same mounting seat 31 are all connected to the same pressure head 32. That is, the pressure head 32 can be driven to move relative to the mounting seat 31 through the multiple guide shafts 33. Furthermore, the number of elastic elements 35 and the number of pressure adjusting nuts 34 are consistent with the number of guide shafts 33. Each pressure adjusting nut 34 is used to lock a corresponding guide shaft 33, thereby fixing the position of the pressure head 32.

[0045] The pressing assembly 3 also includes a guide bearing 36, such as Figure 4 and Figure 5 The guide bearing 36 is fixed on the mounting seat 31 and is coaxially connected with the first receiving hole 311, so that the guide shaft 33 can pass through the first receiving hole 311 and the guide bearing 36 in sequence. The guide bearing 36 can provide a guide for the movement of the guide shaft 33, and the guide bearing 36 can also reduce the friction when the guide shaft 33 moves.

[0046] like Figure 3 As shown, the first receiving hole 311 includes a coaxially connected moving hole 312 and a bearing hole 313. The bearing hole 313 is larger than the moving hole 312. The guide bearing 36 is fixedly installed in the bearing hole 313, and the guide bearing 36 is coaxial with the moving hole 312. The guide shaft 33 can pass through the moving hole 312 and the guide bearing 36 in sequence, and the two ends are located on both sides of the mounting seat 31.

[0047] like Figure 5 As shown, the guide shaft 33 includes a screw-connected section 331 and a connecting section 332. The size of the connecting section 332 and the size of the screw-connected section 331 are smaller than the size of the first receiving hole 311, so that the guide shaft 33 can move through the first receiving hole 311, so that the guide shaft 33 can move up and down along the guide of the first receiving hole 311. Among them, the screw-connected section 331 passes through the first receiving hole 311 and is located on one side of the top surface of the mounting seat 31, the connecting section 332 is located on one side of the bottom surface of the mounting seat 31, the pressure head 32 is connected to the bottom end of the connecting section 332, and the pressure regulating nut 34 is connected to the screw-connected section 331. When the elastic element 35 is a spring, it is sleeved on the connecting section 332 and is located between the pressure head 32 and the mounting seat 31. Therefore, the guide shaft 33 drives the pressure head 32 to move up and down through the guide of the first receiving hole 311 to ensure the stability of the crimping surface of the pressure head 32. When the guide shaft 33 drives the pressing head 32 to move, the distance between the pressing head 32 and the mounting seat 31 increases or decreases, thereby changing the length of the spring.

[0048] The pressure head 32 is fixedly connected to the lower part of the guide shaft 33, that is, the lower end of the connecting section 332. In this embodiment, the pressure head 32 includes at least one first connecting hole 321 and at least one second connecting hole 322, and the second connecting hole 322 is vertically connected to the first connecting hole 321. Figure 5 The first connection hole 321 and the second connection hole 322 are arranged in pairs, and the number of the first connection hole 321 and the second connection hole 322 is the same as the number of the guide shafts 33. The connection section 332 is provided with a third connection hole 333 perpendicular to the axis, as shown in FIG. Figure 5 As shown. When the guide shaft 33 is connected to the pressure head 32, the connecting section 332 can be inserted into the first connecting hole 321, and the third connecting hole 333 is connected to the second connecting hole 322 by rotation, and then the second fastener 4 is connected to the second connecting hole 322 and the third connecting hole 333 in sequence, so that the guide shaft 33 is connected to the pressure head 32. Among them, the second connecting hole 322 and the third connecting hole 333 can be threaded holes, and the second fastener 4 is a screw. In addition, the second connecting hole 322 and the third connecting hole 333 can also be smooth holes, and the second fastener 4 is a screw and a nut.

[0049] In another embodiment, the pressure head 32 can also be connected to the connecting section 332 by screwing. That is, a threaded hole is provided on the pressure head 32, and a thread is provided at the lower end of the connecting section 332, and the two are screwed together.

[0050] like Figure 3 and Figure 4 As shown, the pressure head 32 includes a fixing seat 323 and a rubber pad 324, and the rubber pad 324 is fixedly arranged below the fixing seat 323. The rubber pad 324 can prevent the power tube 8 from being crushed. The guide shaft 33 is connected to the fixing seat 323, and the connection method is as described above. The rubber pad 324 can be fastened by screws. The specific shape of the pressure head 32 is set according to different power tubes.

[0051] The mounting seat 31 is fixedly connected to the positioning plate 2 by magnetic attraction. The magnetic attraction method allows for quick disassembly and replacement between the holding component 3 and the positioning plate 2. In one embodiment, a first magnetic component 21 is mounted on the positioning plate 2, and a second magnetic component (not shown in the figure) is mounted on the mounting seat 31. The holding component 3 is magnetically attracted to the positioning plate 2 via the mounting seat 31. In another embodiment, the positioning plate 2 is mounted with a first magnetic component 21, and the mounting seat 31 can be a magnetic mounting seat formed of a magnetic material.

[0052] When the pressure adjustment of the pressing assembly 3 is completed, the pressing assembly 3 can be quickly disassembled and used as a standard pressing head for the corresponding power tube after the adjustment is completed. It does not need to be adjusted again after being installed on the positioning plate 2 again. When adjusting the pressure of other pressing assemblies 3, the pressing assembly 3 that has been adjusted can be disassembled first, thereby avoiding interference between the press and the pressing head when multiple pressing assemblies 3 are closely arranged on the positioning plate 2 for adjustment.

[0053] In the present application, the positioning plate 2 includes at least one connecting slot 22, and the first magnetic attraction member 21 is installed in the connecting slot 22. Figure 6 and Figure 7 When the pressing assembly 3 is installed with the positioning plate 2 , the pressing assembly 3 can be placed at the position of the connecting groove 22 , and fixedly installed in the connecting groove 22 by the mounting seat 31 and the first magnetic attraction member 21 .

[0054] The connecting groove 22 is configured as a step-shaped structure. Figure 7 As shown. That is, the connecting groove 22 is configured as two connected parts along the depth direction, the cross-sectional dimensions of the two parts are different, and a step is formed between the two parts. The first magnetic attraction member 21 can be arranged on the step of the connecting groove 22. The mounting seat 31 can be configured as a step structure adapted to the connecting groove 22, such as Figure 5 As shown. Thus, the mounting seat 31 can be quickly fixed in the connecting groove 22, as shown in FIG. Figure 3 shown.

[0055] Among them, a plurality of connecting grooves 22 can be provided on the positioning plate 2. A mounting seat 31 (that is, a holding component 3) can be connected to each connecting groove 22. In other words, the positioning plate 2 can fix multiple holding components 3 at the same time, and the positioning plate 2 can drive the multiple holding components 3 to move and simultaneously crimp the multiple power tubes 8 onto the multiple heat sinks 9 respectively. The size and structure of the mounting seats 31 of the multiple holding components 3 are consistent, which can reduce the production cost when crimping different power tubes. At the same time, the holding component 3 can also be quickly removed from one connecting groove 22 and quickly installed in another connecting groove 22.

[0056] In another embodiment, the positioning plate 2 has a first mounting hole 23, the mounting seat 31 has a second mounting hole 314, and the first fastener 20 is fixedly connected to the first mounting hole 23 and the second mounting hole 314, thereby connecting the positioning plate 2 and the mounting seat 31 together. Figure 8 When the positioning plate 2 and the mounting seat 31 are disassembled, the first fastener 20 can be disassembled to achieve the desired effect.

[0057] The crimping tool also includes a limit plate 5, which is mounted on the bottom plate 1. Figure 2 As shown, the limiting plate 5 has a lateral limiting groove 51. The radiator 9 is first placed on the bottom plate 1 and its position is limited by the lateral limiting groove 51, and then the power tube 8 is placed on the radiator 9 and limited by the lateral limiting groove 51, so that the relative position of the power tube 8 and the radiator 9 is fixed. The position of the lateral limiting groove 51 is arranged relative to the pressing assembly 3. The positioning plate 2 is controlled to move, thereby driving the pressing assembly 3 to move downward, so that the pressing head 32 presses the power tube 8 on the radiator 9.

[0058] like Figure 1 and Figure 2 As shown, the crimping tool also includes a top plate 6, which can be connected to the top of the positioning plate 2 through an intermediate support plate 7. The top plate 6 can be connected to a driving device, and the driving device drives the top plate 6 to move, thereby driving the positioning plate 2 to move. Among them, an adjustment space 71 is formed between the top plate 6 and the positioning plate 2. The adjustment space 71 can provide a moving space for the guide shaft 33 when adjusting the pressure.

[0059] Crimping process: Place the heat sink with the heat-curing thermal tape on the bottom plate, place the power tube flat in the corresponding lateral limit groove, press the start switch, and use the drive device to press down to the preset stroke and maintain pressure to achieve crimping and locking of the power tube and the heat sink.

[0060] The embodiment of the utility model provides a crimping tool, which includes a base plate, a positioning plate and a holding assembly. The guide shaft of the holding assembly is movably connected to the mounting seat, the pressure head is connected to the bottom end of the guide shaft, the elastic element is connected between the mounting seat and the pressure head, the guide shaft drives the pressure head to move up and down relative to the mounting seat to adjust the pressure of the elastic element, after adjustment, the pressure adjustment nut is fastened to the guide shaft to fix the relative position of the pressure head and the mounting seat, the mounting seat is detachably connected to the positioning plate, and the positioning plate drives the holding assembly to move synchronously relative to the base plate to crimp the power tube onto the radiator. The pressure head of the crimping tool is detachably connected to the positioning plate through the mounting seat, so that the pressure head can be used as a standard pressure head for the corresponding power tube after adjustment. At the same time, the holding assembly can be quickly disassembled and does not need to be re-adjusted after disassembly, so that other holding assemblies can be adjusted by disassembling the pressure-adjusted holding assembly, thereby avoiding interference between the pressure device and the pressure head.

[0061] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A crimping tool, characterized in that: The crimping tool comprises: A bottom plate (1) for placing a power tube (8) and a heat sink (9); A positioning plate (2), the positioning plate (2) being arranged opposite to the bottom plate (1), and the positioning plate (2) being movable relative to the bottom plate (1); At least one pressing assembly (3), the pressing assembly (3) comprising a mounting seat (31), a pressing head (32), at least one guide shaft (33), at least one pressure adjusting nut (34) and at least one elastic element (35), the mounting seat (31) being arranged opposite to the pressing head (32), the mounting seat (31) comprising at least one first receiving hole (311), the guide shaft (33) moving through the first receiving hole (311), the pressing head (32) being connected to the bottom end of the guide shaft (33), the elastic element (35) being connected between the mounting seat (31) and the pressing head (32), the guide shaft (33) driving the pressing head (32) to move up and down relative to the mounting seat (31) to adjust the pressure of the elastic element (35), and the pressure adjusting nut (34) being fastened to the guide shaft (33) to fix the relative position of the pressing head (32) and the mounting seat (31); The mounting seat (31) is detachably connected to the positioning plate (2), and the positioning plate (2) drives the pressing assembly (3) to move synchronously relative to the base plate (1) so as to press the power tube (8) onto the heat sink (9).

2. The crimping tool according to claim 1, characterized in that: The positioning plate (2) is mounted with a first magnetic attraction component (21), and the mounting seat (31) is mounted with a second magnetic attraction component magnetically connected to the first magnetic attraction component (21); or, The positioning plate (2) is mounted with a first magnetic attraction component (21), and the mounting seat (31) is a magnetic mounting seat (31).

3. The crimping tool according to claim 2, characterized in that: The positioning plate (2) comprises at least one connecting through slot (22), the first magnetic attraction member (21) is installed in the connecting through slot (22), and the mounting seat (31) and the first magnetic attraction member (21) are magnetically fixedly installed in the connecting through slot (22).

4. The crimping tool according to claim 1, characterized in that: The positioning plate (2) has a first mounting hole (23), the mounting seat (31) has a second mounting hole (314), and the positioning plate (2) and the mounting seat (31) are connected and fixed in the first mounting hole (23) and the second mounting hole (314) via a first fastener (20).

5. The crimping tool according to claim 1 or 3, characterized in that: The guide shaft (33) comprises a threaded section (331) and a connecting section (332); the threaded section (331) passes through the first receiving hole (311) and is located on a side of the mounting seat (31) away from the pressure head (32); the pressure head (32) is connected below the connecting section (332); and the guide shaft (33) drives the pressure head (32) to move up and down relative to the mounting seat (31).

6. The crimping tool according to claim 5, characterized in that: The pressure head (32) comprises at least one first connecting hole (321) and at least one second connecting hole (322), the second connecting hole (322) being vertically connected to the first connecting hole (321), the connecting section (332) comprising a third connecting hole (333) perpendicular to the axis, the connecting section (332) being inserted into the first connecting hole (321) and passing through the third connecting hole (333) and the second connecting hole (322) in sequence through a second fastener (4) to be connected to the pressure head (32).

7. The crimping tool according to claim 1, characterized in that: The holding assembly (3) further comprises a guide bearing (36); the first receiving hole (311) comprises a movable hole (312) and a bearing hole (313) which are coaxially connected; the bearing hole (313) is larger than the movable hole (312); the guide bearing (36) is fixedly mounted in the bearing hole (313); and the guide shaft (33) passes through the movable hole (312) and the guide bearing (36) in sequence.

8. The crimping tool according to claim 5, characterized in that: The elastic element (35) is a spring, which is sleeved on the connecting section (332).

9. The crimping tool according to claim 1, characterized in that: The crimping tool comprises: A limiting plate (5) is mounted on the bottom plate (1), wherein the limiting plate (5) has a lateral limiting groove (51); A top plate (6) is connected above the positioning plate (2) via an intermediate support plate (7), and an adjustment space (71) is formed between the top plate (6) and the positioning plate (2).

10. The crimping tool according to claim 1, characterized in that: The pressure head (32) comprises a fixing seat (323) and a rubber pad (324); the guide shaft (33) is connected to the fixing seat (323); and the rubber pad (324) is arranged below the fixing seat (323).

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