Elastic sheet clamp dismounting and mounting clamp

Abstract

The utility model relates to a shrapnel clamp dismounting fixture, which comprises a clamp, a pressing block and a driving rod, the clamp comprises a mounting block and two clamp bodies, the middle parts of the two clamp bodies are respectively hinged to the two sides of the mounting block, the mounting block is provided with a through hole extending along the vertical direction, each clamp body comprises a clamp arm positioned on the upper side of the mounting block and a clamp claw positioned on the lower side of the mounting block, and the pressing block is arranged on the mounting block. A bearing part for bearing an elastic shoulder of the elastic sheet clamp is formed at the lower end of each clamp claw; the pressing block is positioned below the mounting block; the driving rod extends vertically, and the lower end of the driving rod penetrates through the through hole to be connected with the pressing block. The elastic piece clamp is limited to the jaw of the clamp through the driving block and the two bearing parts, the two clamp arms are operated to be close to each other so that the opening between the two elastic shoulders can be enlarged, the elastic piece clamp can be conveniently installed on a power device needing to be pressed or detached from the power device, and the elastic piece clamp of the power device can be disassembled and assembled in a narrow space; the defect of adjacent devices cannot be caused, and the assembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply production and manufacturing, and particularly relates to a fixture for disassembling and assembling a shrapnel clip. Background Art

[0002] At present, the power density of power modules is getting higher and higher, the requirement for space utilization is getting higher and higher, and the heat dissipation of power devices is a very important link. The power devices are installed by pressing the shrapnel on both sides of the heat sink or the water-cooled plate.

[0003] Currently, most of the installations are completed by manual assistance with a pair of needle-nose pliers. Due to the narrow space, the installation efficiency is low and it is easy to damage the surrounding parts. Summary of the Utility Model

[0004] Based on the above description, the utility model provides a fixture for disassembling and assembling a shrapnel clip to solve the problems of low efficiency of the existing manual disassembly and assembly assisted by needle-nose pliers and easy damage to the surrounding parts.

[0005] The technical solution of the utility model for solving the above technical problems is as follows:

[0006] A fixture for disassembling and assembling a shrapnel clip, comprising:

[0007] A pair of pliers, comprising a mounting block and two pliers bodies. The middle parts of the two pliers bodies are respectively hinged to both sides of the mounting block. The mounting block is provided with a through hole extending in the up-and-down direction. Each pliers body includes a pliers arm located above the mounting block and a pliers claw located below the mounting block. The lower end of each pliers claw forms a receiving part for receiving the shrapnel shoulder of the shrapnel clip.

[0008] A pressing block, located below the mounting block; and,

[0009] A driving rod, extending in the up-and-down direction. The lower end of the driving rod passes through the through hole and is connected to the pressing block.

[0010] On the basis of the above technical solution, the utility model can be further improved as follows:

[0011] Further, each pliers claw includes:

[0012] A connecting part, extending in the up-and-down direction; and,

[0013] A hook, connected to the lower end of the side surface of the connecting part facing the pressing block and inclined obliquely upward;

[0014] The receiving part is formed on the side surface of the hook facing the connecting part.

[0015] Further, the included angle between the hook and the connecting part is greater than or equal to the angle between the shrapnel shoulder of the shrapnel clip and the vertical direction.

[0016] Furthermore, the mounting block is provided with a guiding hole penetrating in the up-down direction, and the guiding hole is located on one side of the through hole.

[0017] The upper end of the pressing block is connected with a guiding pin extending in the up-down direction, and the guiding pin is slidably connected in the guiding hole.

[0018] Furthermore, two guiding holes are provided, and are respectively located on two opposite sides of the through hole.

[0019] Two corresponding guiding pins are provided.

[0020] Furthermore, the upper end of the driving rod is provided with a holding part.

[0021] Furthermore, the holding part is arranged as a holding ring, and the radial direction of the holding ring corresponds to the axial direction of the driving rod.

[0022] Furthermore, the upper end surface of the pressing block is provided with a connecting hole extending in the up-down direction.

[0023] The through hole is arranged as a threaded hole.

[0024] The driving rod includes a threaded section screwed with the threaded hole, and the lower end of the threaded section is rotatably connected to the connecting hole.

[0025] Compared with the prior art, the technical solution of the present application has the following beneficial technical effects:

[0026] Hold the two clamping arms, so that the two clamping jaws respectively clamp both sides of the shrapnel clip, and each of the receiving parts corresponds to the shrapnel shoulders of the shrapnel clip. Drive the pressing block to move downward through the driving rod, the pressing block presses the shrapnel clip downward, the shrapnel clip deforms, so that the whole shrapnel clip is limited in the jaws of the clamp, the upper end surface of the shrapnel clip abuts against the pressing block, and the two shrapnel shoulders of the shrapnel clip are respectively stably received on the receiving parts. Thus, by operating the two clamping arms to approach each other, the opening between the two shrapnel shoulders can be enlarged, so as to facilitate the installation of the shrapnel clip on the power device to be pressed or the disassembly from the power device. The clamp can complete the disassembly and assembly of the shrapnel clip directly up and down. In this way, the disassembly and assembly of the shrapnel clip of the power device can be completed in a narrow space, without causing damage to the adjacent devices, and the assembly efficiency is improved. Description of the Drawings

[0027] Figure 1 Schematic diagram of the use state of a shrapnel clip disassembly and assembly fixture provided for an embodiment of the utility model;

[0028] Figure 2 For Figure 1 Another perspective structural diagram (excluding the shrapnel clip);

[0029] Figure 3 is Figure 1 a schematic structural diagram of the power supply module in

[0030] Figure 4 a schematic structural diagram of a shrapnel clip disassembly and assembly fixture provided by an embodiment of the present utility model;

[0031] Figure 5 a schematic structural diagram of a shrapnel clip disassembly and assembly fixture clamping a shrapnel clip provided by an embodiment of the present utility model.

[0032] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0033] 1. clamp; 11. mounting block; 111. through hole; 1111. threaded hole; 112. guiding hole; 12. pliers body; 121. pliers arm; 1211. avoidance gap; 122. pliers jaw; 1221. receiving portion; 1222. connecting portion; 1223. hook; 123. pliers mouth; 2. pressing block; 21. connecting hole; 3. driving rod; 31. threaded section; 4. guiding pin; 5. holding portion; 51. holding ring; a. shrapnel clip; a1. shrapnel shoulder; b. power device. Detailed implementation manners

[0034] To facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant attached drawings. Embodiments of the present application are given in the attached drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs. The terms used in the description of the present application in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0036] It will be appreciated that spatial relationship terms such as "under", "below", "lower", "beneath", "above", "upper", etc. can be used herein to describe the relationship of one element or feature shown in the figures to other elements or features. It should be understood that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device during use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "beneath it" or "below it" will be oriented "above" the other elements or features. Thus, the exemplary terms "under" and "below" can include both upper and lower orientations. In addition, the device may also have other orientations (such as being rotated 90 degrees or other orientations), and the spatial descriptors used herein are accordingly interpreted.

[0037] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediate element. In the following embodiments, "connection", if there is a transfer of electrical signals or data between the connected circuits, modules, units, etc., should be understood as "electrical connection", "communication connection", etc.

[0038] As used herein, the singular forms "a", "an" and "the" may also include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprise / include" or "have" etc. specify the presence of the stated features, wholes, steps, operations, components, parts or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0039] Referring to Figures 1 to 4 , the present utility model provides a fixture for disassembling and assembling a shrapnel clip, comprising:

[0040] A pair of pliers 1, comprising a mounting block 11 and two plier bodies 12. The middle parts of the two plier bodies 12 are respectively hinged to both sides of the mounting block 11. The mounting block 11 is provided with a through hole 111 extending in the up-down direction. Each plier body 12 includes a plier arm 121 located above the mounting block 11 and a plier jaw 122 located below the mounting block 11. The lower end of each plier jaw 122 forms a receiving portion 1221 for receiving the spring shoulder a1 of the shrapnel clip a.

[0041] A pressing block 2, located below the mounting block 11; and,

[0042] A driving rod 3, extending in the up-down direction. The lower end of the driving rod 3 passes through the through hole 111 and is connected to the pressing block 2.

[0043] Hold the two clamping arms 121 such that the two clamping jaws 122 respectively clamp both sides of the shrapnel clip a, and each of the receiving portions 1221 corresponds to the shrapnel shoulders a1 of the shrapnel clip a. Drive the pressing block 2 to move downward through the driving rod 3. The pressing block 2 presses the shrapnel clip a downward, causing the shrapnel clip a to deform, so that the entire shrapnel clip a is limited within the jaws 123 of the clamp 1. The upper end surface of the shrapnel clip a abuts against the pressing block 2, and the two shrapnel shoulders a1 of the shrapnel clip a are respectively stably received on the receiving portions 1221. Thus, by operating the two clamping arms 121 to approach each other, the opening between the two shrapnel shoulders a1 can be enlarged to facilitate the installation of the shrapnel clip a onto the power device b to be clamped or the removal from the power device b. The clamp 1 can complete the disassembly and assembly of the shrapnel clip a by moving straight up and down. In this way, the disassembly and assembly of the shrapnel clip of the power device b can be completed in a narrow space, without causing damage to the adjacent devices, and the assembly efficiency is improved.

[0044] Specifically, each of the clamping jaws 122 includes a connecting portion 1222 and a hook 1223. The connecting portion 1222 extends in the vertical direction; the hook 1223 is connected to the lower end of the side surface of the connecting portion 1222 facing the pressing block 2 and is inclined obliquely upward; the receiving portion 1221 is formed on the side surface of the hook 1223 facing the connecting portion 1222.

[0045] Refer to Figure 1 、 Figure 4 and Figure 5 In this embodiment, when the two clamping jaws 122 respectively clamp both sides of the shrapnel clip a, such that the two hooks 1223 hook the two shrapnel shoulders a1 of the shrapnel clip a, then drive the pressing block 2 to move downward to press the upper end of the shrapnel clip a and limit the vertical position of the shrapnel clip a. Further, the two shrapnel shoulders a1 are respectively received on the two hooks 1223, and the end of each shrapnel shoulder a1 abuts against the connection between the hook 1223 and the connecting portion 1222, thereby completely hooking the two shrapnel shoulders a1, which facilitates subsequent installation or removal. In this way, the structure is simple and the reception is stable.

[0046] In another embodiment, at the lower ends of the opposite side surfaces of the two connecting portions 1222, there are provided limiting grooves. The length of the limiting grooves is adapted to the length of the shrapnel shoulders a1, and the width of the limiting grooves is not less than the thickness of the shrapnel shoulders a1; the bearing portion is formed on the groove wall of each of the limiting grooves. The two clamping heads clamp both sides of the shrapnel clip a, such that the end portions of the two shrapnel shoulders a1 are respectively received in the two limiting grooves; then drive the pressing block 2 to move downward to press the upper end of the shrapnel clip a, such that the side surface of each shrapnel shoulder a1 abuts against the lower side groove side wall of the corresponding limiting groove, and the end of each shrapnel shoulder a1 abuts against the groove bottom wall of the corresponding limiting groove, thereby being able to firmly clamp the shrapnel clip a and ensuring the normal progress of subsequent installation and removal.

[0047] After the shrapnel clip a is installed on the power device b or removed from the power device b, only need to operate the two clamping arms 121 to approach each other, so that the two clamping heads are away from each other, and then drive the pressing member to move upward, so that each spring shoulder a1 protrudes from each of the limiting grooves, completing the installation or the separation of the shrapnel clip a from the clamp 1.

[0048] Further, referring to Figure 4 and Figure 5 , the included angle between the hook 1223 and the connecting portion 1222 is greater than or equal to the angle between the spring shoulder a1 of the shrapnel clip a and the vertical direction. In this way, it is convenient for each of the hooks 1223 to more easily hook the corresponding spring shoulders a1.

[0049] In this embodiment, the included angle between the hook 1223 and the connecting portion 1222 is adapted to the angle between the spring shoulder a1 and the vertical direction.

[0050] In order to enable the pressing block 2 to move up and down smoothly, the mounting block 11 is provided with a guiding hole 112 penetrating in the up and down direction, and the guiding hole 112 is located on one side of the through hole 111; the upper end of the pressing block 2 is connected with a guiding pin 4 extending in the up and down direction, and the guiding pin 4 is slidably connected in the guiding hole 112. When the pressing block 2 moves up and down, the guiding pin 4 also moves up and down in the guiding hole 112. Thus, the guiding pin 4 and the guiding hole 112 cooperate to prevent the pressing block 2 from swaying to the peripheral side when moving up and down, improving the stability.

[0051] The number of the guiding holes 112 is not limited. In this embodiment, referring to Figure 1 and Figure 2 , two guiding holes 112 are provided, which are respectively located on opposite sides of the through hole 111; two guiding pins 4 are correspondingly provided. In this way, the movement of the pressing block 2 is made more stable.

[0052] In this embodiment, referring to Figure 2 and Figure 5 , the upper end surface of the pressing block 2 is provided with a connecting hole 21 extending in the up and down direction; the through hole 111 is provided as a threaded hole 1111; the driving rod 3 includes a threaded section 31 screwed with the threaded hole 1111, and the lower end of the threaded section 31 is rotatably connected to the connecting hole 21. Thus, by rotating the driving rod 3, the driving rod 3 can move up and down relative to the threaded hole 1111 to drive the pressing block 2 to move up and down, and the cooperation between the threaded section 31 and the threaded hole 1111 can finely and accurately adjust the up and down movement of the pressing block 2, which is convenient for operation. In this way, the structure is simple and the setting is convenient.

[0053] It should be noted that the lower end of the threaded section 31 is rotatably connected to the connecting hole 21, which can be achieved by clearance fit.

[0054] In another embodiment, the driving rod 3 can be the driving rod 3 of a cylinder.

[0055] In order to facilitate the rotation of the driving rod 3, in this embodiment, referring to Figure 1 、 Figure 2 and Figure 4 , a holding part 5 is provided at the upper end of the driving rod 3. Thus, it is convenient for the operator to hold the holding part 5 and drive the driving rod 3 to rotate. In this way, the operation is simplified and manpower is saved.

[0056] Specifically, in this embodiment, continuing to refer to Figure 1 、 Figure 2 and Figure 4 , the holding part 5 is arranged as a holding ring 51, and the radial direction of the holding ring 51 corresponds to the axial direction of the driving rod 3. Thus, it is convenient for the operator to hold, reduces the manpower required for rotation, and is convenient for hanging and storing the disassembly and assembly tool of the elastic sheet clip a.

[0057] In another embodiment, the holding part 5 can be arranged as a holding rod, the holding rod extends in the horizontal direction, and the middle part of the holding rod is connected to the upper end of the driving rod 3.

[0058] In addition, referring to Figure 2 and Figure 4 , each of the pliers bodies 12 includes the respective pliers arms 121 and the respective pliers heads connected to each other. Each of the pliers heads is hinged to the mounting block 11. Each of the pliers arms 121 is arranged in a bent rod shape. The two ends of each of the pliers arms 121 are respectively connected to both sides of the corresponding pliers head, and an avoidance gap 1211 is formed between each of the pliers arms 121 and the corresponding pliers head. On the one hand, it is convenient for the operator to hold the pliers arm 121 and improves the comfort of operation. On the other hand, the avoidance gap 1211 can provide an avoidance space for the two guide pins 4 when the two pliers arms 121 approach each other, so as to avoid interference between the two guide pins 4 and the two guide pins 4 respectively, which affects the operation.

[0059] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A spring clip disassembly and assembly fixture, characterized in that: include: A clamp, comprising a mounting block and two clamp bodies, wherein the middle parts of the two clamp bodies are respectively hinged to the two sides of the mounting block, the mounting block is provided with a through hole extending in the up-down direction, each of the clamp bodies comprises a clamp arm located on the upper side of the mounting block and a clamp claw located on the lower side of the mounting block, and the lower end of each of the clamp claws is formed with a receiving portion for receiving the elastic shoulder of the shrapnel clamp; a pressing block located at a lower side of the mounting block; and A driving rod extends up and down, and the lower end of the driving rod passes through the through hole and is connected to the pressing block.

2. The spring clip assembly and disassembly fixture according to claim 1, characterized in that: Each of the clamp claws comprises: A connecting portion extending in an up-down direction; and A hook connected to the lower end of the connecting portion facing the side of the pressing block and arranged obliquely upward; The receiving portion is formed on a side surface of the hook facing the connecting portion.

3. The spring clip assembly and disassembly fixture according to claim 2, characterized in that: The angle between the hook and the connecting portion is greater than or equal to the angle between the spring shoulder of the spring clip and the vertical direction.

4. The spring clip assembly and disassembly fixture according to claim 1, characterized in that: The mounting block is provided with a guide hole penetrating in the up-down direction, and the guide hole is located on one side of the through hole; The upper end of the pressing block is connected with a guide pin extending in an up-down direction, and the guide pin is slidably connected in the guide hole.

5. The spring clip assembly and disassembly fixture according to claim 4, characterized in that: The guide holes are arranged in two, and are respectively located on two opposite sides of the through hole; The guide pins are correspondingly arranged in two.

6. The spring clip assembly and disassembly fixture according to claim 1, characterized in that: The upper end of the driving rod is provided with a holding portion.

7. The spring clip assembly and disassembly fixture according to claim 6, characterized in that: The holding portion is configured as a holding ring, and a radial direction of the holding ring corresponds to an axial direction of the driving rod.

8. The spring clip assembly and disassembly fixture according to claim 1, characterized in that: The upper end surface of the pressing block is provided with a connecting hole extending in the up-down direction; The through hole is configured as a threaded hole; The driving rod comprises a threaded section threadedly connected to the threaded hole, and the lower end of the threaded section is rotatably connected to the connecting hole.

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