Mounting tool

Abstract

The utility model belongs to the technical field of electronic device assembly, and discloses an installation tool which comprises a tool base and a plurality of guide assemblies. Each guide assembly comprises a guide part and an elastic part; the first end of the elastic piece is connected with the tool base, and the second end is connected with the guide piece. A plurality of workpieces to be assembled can penetrate through the guide rod and the guide piece, the workpieces to be assembled are limited, and the situation that follow-up assembling cannot be carried out due to the fact that the workpieces move in the assembling process is avoided. Meanwhile, by arranging the elastic piece, when the workpiece is fixed, the guide piece is pushed, the guide piece compresses the elastic piece to enable the elastic piece to deform, and the guide piece can retreat from the workpiece. The to-be-assembled workpiece is quickly mounted and fixed, and the assembly efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of workpiece assembly technology, and in particular to an installation fixture. Background Technology

[0002] When assembling multiple workpieces, corresponding connection holes are usually made on each workpiece, and fasteners are used to pass through the connection holes on each workpiece in sequence to fix the multiple workpieces together. However, during the assembly process, the unfixed parts of the workpieces are prone to move, causing the connection holes to not correspond one by one, making it impossible to continue the assembly. The workpieces need to be realigned, resulting in a lot of wasted time.

[0003] For example, the assembly of a PCBA board and a heat sink. A PCBA (Printed Circuit Board Assembly) is a carrier for the electrical interconnection of electronic components. During operation, the PCBA board generates heat, which needs to be dissipated promptly; otherwise, it will affect the safe operation of the entire PCBA board.

[0004] The common industry practice is to clamp heat sinks on the top and bottom of the PCBA board. The upper heat sink is connected to the lower heat sink via fasteners passing through the PCBA board, dissipating the heat generated during PCBA board operation. To prevent damage to the side of the PCBA board with soldered electronic components from the clamping heat sink, multiple washers are placed between the heat sink and the PCBA board. However, during assembly, the washers are prone to shifting, requiring the fasteners to be removed and the positions of the shifted washers readjusted, resulting in unnecessary time waste. Current technology typically uses quick-drying adhesive to fix the washers, but this method easily contaminates the PCBA board, and the position of the washers cannot be changed after fixing. Incorrect placement can render the PCBA board unusable. Furthermore, the adhesive application requires high precision and has a long curing time.

[0005] Therefore, there is an urgent need for an installation tool to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide an installation fixture to solve the technical defects in the prior art where the positions of multiple workpieces are easily moved during assembly, resulting in misalignment of the corresponding connecting holes on the workpieces and wasting time in the assembly process, thereby reducing assembly difficulty and improving assembly efficiency.

[0007] Based on the above concept, the technical solution adopted by this utility model is as follows:

[0008] An installation fixture is used to assemble multiple workpieces, each workpiece having multiple connecting holes. Multiple fasteners pass through the corresponding connecting holes in sequence to securely connect the multiple workpieces. The installation fixture includes:

[0009] Tooling base;

[0010] Multiple guide components, each guide component including a guide member and an elastic member; a first end of the elastic member is connected to the tooling base, and a second end is connected to the guide member; the guide member can pass through the corresponding connection hole of each workpiece, and under the push of the fastener, overcome the elastic force of the elastic member and exit from the connection hole.

[0011] Optionally, the guide assembly further includes a guide sleeve disposed on the tooling base, the elastic element being disposed inside the guide sleeve, the guide element being partially disposed inside the guide sleeve, and the end of the guide element away from the elastic element being located outside the guide sleeve.

[0012] Optionally, one end of each of the guide sleeves away from the tooling base is provided with a support plane, which is used to support the workpiece.

[0013] Optionally, the tooling base has a groove, one end of the guide sleeve is positioned in the groove, and / or the guide sleeve is detachably connected to the tooling base.

[0014] Optionally, the guide member has a protrusion at one end near the elastic member;

[0015] A stop is provided at the end of the guide sleeve away from the tooling base to stop the protrusion.

[0016] Optionally, along the axial direction of the guide sleeve, a groove is provided inside the guide sleeve to cooperate with the protrusion.

[0017] Optionally, the protrusion is detachably disposed on the guide member, and the second end of the elastic member is connected to the protrusion.

[0018] Optionally, the tooling base is provided with multiple support members at intervals, and the support members can support the workpiece.

[0019] Optionally, the tooling base is further provided with a connector, and a plurality of the support members are provided on the same side of the connector and are all connected to the connector.

[0020] Optionally, the end of the guide member away from the elastic member is provided with a chamfer.

[0021] The beneficial effects of this utility model are:

[0022] The installation fixture proposed in this utility model comprises a fixture base and multiple guide components, each guide component including a guide member and an elastic member. The first end of the elastic member is connected to the fixture base, and the second end is connected to the guide member. The guide member can pass through the workpiece to be assembled, limiting its movement and preventing it from shifting during assembly, which could hinder subsequent assembly. Simultaneously, the elastic member, when fixing the workpiece, pushes against the guide member, causing the guide member to press against the elastic member, resulting in deformation of the elastic member and allowing the guide member to retract from the workpiece. This allows for rapid installation and fixing of the workpiece, significantly improving assembly efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the installation fixture provided by this utility model;

[0025] Figure 2 This is a cross-sectional view of the installation fixture provided by this utility model during use;

[0026] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 yes Figure 2 Enlarged view of point B in the middle;

[0028] Figure 5 This is an exploded view of the installation tooling provided by this utility model during use;

[0029] Figure 6 This is a schematic diagram of the second radiator;

[0030] Figure 7 This is a front view of the guide component provided by this utility model.

[0031] Figure 8 This is a structural diagram of a washer.

[0032] In the picture:

[0033] 1. Tooling base; 11. Support component; 12. Connecting component;

[0034] 2. Guide assembly; 21. Guide component; 211. Protrusion; 212. Chamfer; 22. Elastic component; 23. Guide sleeve; 231. Stop component;

[0035] 3. First radiator; 31. First through hole; 32. Placement slot; 33. Supporting lug;

[0036] 4. PCBA board; 41. Second through hole;

[0037] 5. Washer; 51. Fourth through hole;

[0038] 6. Second radiator; 61. Third through hole;

[0039] 7. Fasteners. Detailed Implementation

[0040] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0041] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Specifically, the terms "first position" and "second position" refer to two different positions.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] This utility model discloses an installation fixture for assembling multiple workpieces. Each workpiece has multiple connecting holes, and multiple fasteners 7 pass through the corresponding connecting holes in sequence to fix the multiple workpieces together. The installation fixture includes a fixture base 1 and multiple guide components 2. Each guide component 2 includes a guide member 21 and an elastic member 22. The first end of the elastic member 22 is connected to the fixture base 1, and the second end is connected to the guide member 21. The guide member 21 can pass through the corresponding connecting hole of each workpiece and, under the push of the fasteners 7, overcomes the elastic force of the elastic member 22 and exits from the connecting hole.

[0044] The installation fixture proposed in this utility model comprises a fixture base 1 and multiple guide components 2, each guide component 2 including a guide element 21 and an elastic element 22. The first end of the elastic element 22 is connected to the fixture base 1, and the second end is connected to the guide element 21. The guide element 21 can pass through the workpiece to be assembled, limiting its movement and preventing it from shifting during assembly, thus preventing subsequent assembly from being impossible. Simultaneously, the elastic element 22, when fixing the workpiece, pushes against the guide element 21, causing the guide element 21 to press against the elastic element 22, deforming the elastic element 22, allowing the guide element 21 to exit the workpiece. This quickly achieves the installation and fixing of the workpiece to be assembled, greatly improving assembly efficiency.

[0045] Specifically, such as Figures 1 to 8 As shown, in some specific embodiments, the mounting fixture is used to assemble the first heat sink 3, PCBA board 4, gasket 5, and second heat sink 6. Multiple fasteners 7 pass sequentially through corresponding connecting holes to securely connect the first heat sink 3, PCBA board 4, gasket 5, and second heat sink 6. The guide member 21 can pass through the first heat sink 3, PCBA board 4, gasket 5, and second heat sink 6 and exit from them under the push of the fasteners 7. In use, the first heat sink 3 is placed on the fixture base 1. The first heat sink 3 has a placement groove 32 and multiple first through holes 31 corresponding to the guide member 21. The first through holes 31 are threaded holes. The PCBA board 4 is placed in the placement groove 32 of the first heat sink 3. The PCBA board 4 has multiple second through holes 41 corresponding to the first through holes 31. The second heat sink 6 is pressed onto the PCBA board 4. The second heat sink 6 has multiple third through holes 61 corresponding to both the first through holes 31 and the second through holes 41. The washer 5 is disposed between the PCBA board 4 and the second heat sink 6, and the washer 5 is provided with a fourth through hole 51. When the elastic member 22 is not in a compressed state, the guide member 21 passes through the first through hole 31, the second through hole 41, the fourth through hole 51 and the third through hole 61 in sequence. When the elastic member 22 is compressed, the highest point of the guide member 21 is lower than the upper surface of the first heat sink 3.

[0046] Understandably, the number of guide components 2 is set according to the number of connection holes opened on the first heat sink 3, PCBA board 4, and second heat sink 6. The diameter of the guide component 21 is the same as the minor diameter of the first through hole 31, which is a threaded hole. The major diameter of the first through hole 31 is the same as the diameter of the second through hole 41, the third through hole 61, and the fourth through hole 51. The guide component 21 is designed to roughly align the first through hole 31, the second through hole 41, the third through hole 61, and the fourth through hole 51. When the fastener 7 passes through the third through hole 61, the fourth through hole 51, and the second through hole 41, it can automatically align the third through hole 61, the fourth through hole 51, the second through hole 41, and the first through hole 31. By using this mounting fixture, even inexperienced employees can simultaneously position multiple washers 5, reducing assembly skill requirements and making positioning quick and convenient, greatly improving the efficiency of assembling the heat sink and PCBA board 4.

[0047] In some specific embodiments, the guide assembly 2 is a spring-loaded pin, the guide pin of the spring-loaded pin serves as the guide element 21, the spring of the spring-loaded pin serves as the elastic element 22, and the fastener 7 is a fastening bolt. In other embodiments, the guide element 21 is a common straight rod, the elastic element 22 can also be other elastic elements, and the fastener 7 can also be a rivet or other fastening element.

[0048] Furthermore, in some embodiments, such as Figure 2 and Figure 3 As shown, in its natural state (i.e., considering only the gravity of the guide 21 and without any other external forces), the highest point of the guide 21 is lower than the upper surface of the second heat sink 6. It is understandable that after the second heat sink 6 is placed, the guide 21 does not extend beyond the third through hole 61 of the second heat sink 6, but leaves a gap at one end, facilitating the insertion of the fastener 7 into the third through hole 61 by the operator, which further improves the efficiency of assembling the heat sink and the PCBA board 4.

[0049] Furthermore, in some embodiments, the guide assembly 2 further includes a guide sleeve 23 disposed on the tooling base 1, with the guide member 21 and the elastic member 22 disposed within the guide sleeve 23, and the end of the guide member 21 away from the elastic member 22 able to extend out of the guide sleeve 23. The guide sleeve 23 guides the movement of the guide member 21, ensuring smooth movement of the guide member 21.

[0050] Furthermore, the guide sleeves 23 are provided with a support plane at the end away from the tooling base 1. The guide sleeves 23 can support the lower surface of the first heat sink 3 so that the first heat sink 3 is not pressed on the tooling base 1, and the heat sink fins provided under the first heat sink 3 are prevented from pressing on the tooling base 1, causing deformation of the heat sink fins and affecting the heat dissipation effect of the PCBA board 4.

[0051] Furthermore, the tooling base 1 has a groove, one end of the guide sleeve 23 is positioned in the groove, and / or the guide sleeve 23 is detachably connected to the groove.

[0052] In some embodiments, the tooling base 1 has a groove with a thread inside. The outer surface of the guide sleeve 23 near the tooling base 1 is threaded. The guide sleeve 23 is threaded to the groove, which facilitates the installation of the guide sleeve 23 onto the tooling base 1. Moreover, when the elastic element 22 is not performing well, it is easy to remove the guide sleeve 23 and replace it with a new elastic element 22.

[0053] In some other embodiments, the guide sleeve 23 may also be interference-fitted with the groove, with the guide sleeve 23 directly inserted into the groove.

[0054] In some embodiments, the guide member 21 is provided with a protrusion 211 at one end near the elastic member 22, and the guide sleeve 23 is provided with a stop member 231 at one end away from the tooling base 1 to stop the protrusion 211. This arrangement can prevent the guide member 21 from disengaging from the guide sleeve 23 when the operator operates it incorrectly, so that the guide member 21 cannot return smoothly into the guide sleeve 23 when the guide member 21 is pushed by the fastener 7, and thus the assembly of the first heat sink 3, the second heat sink 6, the washer 5 and the PCBA board 4 cannot be realized. At the same time, it can also ensure that the elastic member 22 is compressed when the guide member 21 is at its highest position, so that the guide member 21 can be reset to its highest position after the workpiece is removed after assembly, and ensure that the third through hole 61 on the second heat sink 6 can be positioned in the next use.

[0055] Furthermore, along the axial direction of the guide sleeve 23, a groove is provided inside the guide sleeve 23 to cooperate with the protrusion 211. By guiding the protrusion 211 through the groove, circumferential rotation of the guide member 21 can be avoided when it moves axially, which is more conducive to the movement of the guide member 21 and ensures smooth movement of the guide member 21.

[0056] In some specific embodiments, such as Figure 3 and Figure 4 As shown, the protrusion 211 is an annular protrusion, and the end of the guide sleeve 23 away from the tooling base 1 is only provided with a hole for the guide member 21 to pass through. This design makes it easier to process the guide sleeve 23 and the guide member 21, while also ensuring that the force is more even when the guide sleeve 23 stops the guide member 21. This avoids excessive impact force caused by uneven force when the elastic member 22 drives the guide member 21 to reset after the assembly of the first heat sink 3, the second heat sink 6, the washer 5 and the PCBA board 4 are completed and the assembled workpiece is removed, which could damage the stop member 231 or the protrusion 211 and cause the limiting of the guide member 21 to fail.

[0057] Furthermore, the protrusion 211 is detachably mounted on the guide member 21, and the second end of the elastic member 22 is connected to the protrusion 211. It is understood that due to the presence of the stop member 231, the protrusion 211 will be subjected to impact forces during use. Therefore, if the protrusion 211 wears out after prolonged operation or is damaged by impact, only the protrusion 211 needs to be replaced to continue normal use; the entire guide member 21 does not need to be replaced.

[0058] Furthermore, the tooling base 1 is provided with multiple support members 11 at intervals, and the support members 11 can support the workpiece. For example... Figure 1 and Figure 5 As shown, in some embodiments, there are two support members 11, which are disposed at both ends of the fixture base 1. Because the support members 11 support the first heat sink 3, the heat sink fins below the first heat sink 3 are prevented from pressing against the fixture base 1 and deforming, thus affecting the heat dissipation effect of the PCBA board 4. At the same time, the first heat sink 3 is provided with support lugs 33, so that after the guide member 21 passes through the first through hole 31, the first heat sink 3 is hung on the support member 11 through the support lugs 33. After installation, the assembled workpiece can be removed through the support lugs 33.

[0059] Furthermore, such as Figure 2 As shown, in some specific embodiments, the distance between the two support members 11 is the same as the distance between the two outermost heat sinks facing away from each other along the arrangement direction of the heat sink fins of the first heat sink 3. It can be understood that the heat sink fins of the first heat sink 3 can be placed precisely between the two support members 11, making it easier to place the first heat sink 3 on the tooling base 1, further simplifying the assembly process. Moreover, the heat sink fins of the first heat sink 3 achieve surface contact with the sidewalls of the support members 11, reducing the probability of deformation of the heat sink fins of the first heat sink 3 during installation.

[0060] Furthermore, the tooling base 1 is also provided with a connector 12, and multiple support members 11 are arranged on the same side of the connector 12 and are all connected to the connector 12. Specifically, as shown... Figure 1 As shown, in some embodiments, the tooling base 1 is also provided with a connector 12. The connector 12 connects to the same side of the two support members 11 and is perpendicular to both support members 11. This arrangement not only improves the structural strength and supporting force of the support members 11 through the connector 12, but also, in this embodiment, when placing the first heat sink 3, it is only necessary to place the heat sink fins of the first heat sink 3 between the two support members 11, and then make one end of the heat sink fins abut against the connector 12. This allows the multiple connectors 12 on the tooling base 1 to correspond one-to-one with the multiple first through holes 31 on the first heat sink 3, and the installation of the first heat sink 3 can be completed simply by placing the first heat sink 3 down, which is very simple and quick.

[0061] Furthermore, such as Figure 7 As shown, in order to facilitate the PCBA board 4, gasket 5 and second heat sink 6 to be fitted onto the guide member 21, a chamfer 212 is provided at the end of the guide member 21 away from the elastic member 22. By providing the chamfer 212, the PCBA board 4, gasket 5 and second heat sink 6 can be more easily moved to the correct position along the guide member 21 during installation. Moreover, the chamfer 212 can prevent sharp edges from scratching the PCBA board 4, thus improving safety.

[0062] The above embodiments merely illustrate the basic principles and characteristics of this utility model. This utility model is not limited to the above embodiments. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An installation fixture for assembling multiple workpieces, each workpiece having multiple connecting holes, and multiple fasteners (7) passing sequentially through the corresponding connecting holes to fix the multiple workpieces together, characterized in that... include: Tooling base (1); Multiple guide components (2), each guide component (2) includes a guide (21) and an elastic element (22); the first end of the elastic element (22) is connected to the tooling base (1), and the second end is connected to the guide (21); the guide (21) can pass through the corresponding connection hole of each workpiece, and under the push of the fastener (7), overcome the elastic force of the elastic element (22) and exit from the connection hole.

2. The installation fixture according to claim 1, characterized in that, The guide assembly (2) further includes a guide sleeve (23) disposed on the tooling base (1), the elastic element (22) is disposed inside the guide sleeve (23), the guide element (21) is partially disposed inside the guide sleeve (23), and one end of the guide element (21) away from the elastic element (22) is located outside the guide sleeve (23).

3. The installation fixture according to claim 2, characterized in that, Each of the guide sleeves (23) has a support plane at one end away from the tooling base (1), and the support plane is used to support the workpiece.

4. The installation fixture according to claim 2, characterized in that, The tooling base (1) has a groove, one end of the guide sleeve (23) is positioned in the groove, and / or the guide sleeve (23) is detachably connected to the tooling base (1).

5. The installation fixture according to claim 2, characterized in that, The guide member (21) has a protrusion (211) at one end near the elastic member (22); The guide sleeve (23) is provided with a stop (231) at one end away from the tooling base (1) to stop the protrusion (211).

6. The installation fixture according to claim 5, characterized in that, Along the axial direction of the guide sleeve (23), a groove is provided inside the guide sleeve (23) to cooperate with the protrusion (211).

7. The installation fixture according to claim 5, characterized in that, The protrusion (211) is detachably disposed on the guide (21), and the second end of the elastic member (22) is connected to the protrusion (211).

8. The installation fixture according to any one of claims 1-7, characterized in that, The tooling base (1) is provided with a plurality of support members (11) at intervals, and the support members (11) can support the workpiece.

9. The installation fixture according to claim 8, characterized in that, The tooling base (1) is also provided with a connector (12), and a plurality of the support members (11) are provided on the same side of the connector (12) and are all connected to the connector (12).

10. The installation fixture according to any one of claims 1-7, characterized in that, The guide member (21) has a chamfer (212) at the end away from the elastic member (22).

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