Clamp for fixing touch spring

Abstract

The utility model discloses a fixture for fixing a touch spring, which comprises a fixed panel grid frame, and a fixture cavity for assembling a single-foot touch spring and reserving a space for electronic components of a printed circuit board (PCB) switch board is arranged in the fixed panel grid frame. Grid battens for supporting and positioning the touch spring assembled in the clamp cavity are evenly arranged on the inner side of the clamp cavity, the fixed panel grid frame with the clamp cavity, the grid battens and the assembling empty groove is designed, the single-foot touch spring can be accurately assembled, the problem that the touch spring is prone to deviation is effectively solved, the follow-up rework requirement is reduced, and the production efficiency is improved. When the touch spring is positioned by the assembling empty slot, the fixture is ensured not to touch an electronic component when being assembled on the PCB switch board, the manufacturing cost is low, the step times of dismounting and mounting the fixed thin strip are reduced, the times of dismounting and mounting the fixed mold and the rework amount are reduced, the production efficiency is improved, and the labor cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the PCB switch board production technical field, concretely relates to a fixed touch spring clamp. BACKGROUND

[0002] With the rapid development of electronic industry, the switch mode of various electronic products is more and more diversified, and touch switch is one of them. In the process of producing touch switch board, due to the size and layout limitation of circuit board, touch spring cannot be fixed by double side, and needs to be fixed and welded by single side and single pin. The touch spring fixed and welded by single side and single pin is very easy to deviate, so that the touch spring needs to be welded and corrected manually after wave soldering, increasing the rework amount and labor cost. The current furnace welding method does not have a fixed clamp, or simply uses acrylic plate strips placed between adjacent touch springs as a touch spring deviation prevention. If the number of touch springs and the number of switch board panels are large, many strips need to be placed in a panel during furnace welding, increasing labor cost and affecting production efficiency. SUMMARY

[0003] The utility model aims at providing a fixed touch spring clamp to solve the problems in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a fixed touch spring clamp, comprising:

[0005] A fixed panel grid frame is provided with a clamp cavity for assembling single-pin touch spring and reserving space for electronic components of PCB switch board in the fixed panel grid frame. A grid strip plate is uniformly arranged on the inner side of the clamp cavity for supporting and positioning the touch spring assembly in the clamp cavity. Assembly air slots are formed between the grid strip plates to prevent the touch spring assembly from deviating and the clamp from touching the electronic components on the PCB switch board.

[0006] Preferably, the fixed panel grid frame is a square frame structure, and an electronic component reserved slot is arranged at the position of the middle side of the assembly air slot on the inner side of the fixed panel grid frame. The reserved space can avoid such risks in all directions and ensure the integrity of the subsequent functions of the PCB board.

[0007] Preferably, a screw hole for fixing the fixed panel grid frame is arranged on the grid strip plate near the two side walls of the clamp cavity inside the fixed panel grid frame, which can help each touch spring find its own position during assembly and prevent deviation such as left-right shaking and tilting.

[0008] Preferably, the fixed cylinder extends from the grid strip plate to the lower end surface of the grid strip plate vertically and protrudes downward, avoiding excessive local pressure that causes slight deformation of the PCB plate, maintaining the flatness of the PCB plate, and indirectly ensuring the flatness of the welding plane of the touch spring.

[0009] Preferably, the fixed panel grid frame is a square frame with an open structure at one end, and three edges of the lower end of the fixed panel grid frame are provided with buckle members for clamping three edges of the PCB switch plate as a clamping part of the fixed panel grid frame, which can ensure that the clamp always firmly guards the touch spring and prevents the spring from shifting due to accidental loosening, further stabilizing the production process.

[0010] Preferably, the buckle members at the two corners of the fixed panel grid frame are L-shaped structures, and the opening at one end of the fixed panel grid frame forms a notch for taking out the clamp to one side after wave soldering of the PCB panel, which facilitates workers to easily take down the clamp from one side without damaging the welded touch spring and quickly complete the turnover and reuse of the clamp.

[0011] Compared with the prior art, the technical effects and advantages of the fixed touch spring clamp are: the fixed touch spring clamp is designed with a fixed panel grid frame having a clamp cavity, a grid strip plate and an assembly slot, which can precisely assemble the single-foot touch spring, effectively solve the problem of easy deviation of the touch spring, reduce the subsequent rework demand, the assembly slot can ensure that the clamp does not touch the electronic components when assembled on the PCB switch plate, protect the electrical performance of the product from being affected, and the manufacturing cost is low, the number of steps for dismounting and mounting the fixed fine strip is reduced, the number of times of dismounting and mounting the fixed mold is reduced, the rework amount is reduced, the production efficiency is improved, and the labor cost is reduced.

[0012] By setting the electronic device reserved slot, the fixed cylinder and the buckle member, the fixed panel grid frame can be more stably installed on the PCB switch plate, ensuring the stability of the clamp during use, further maintaining the precision of the touch spring welding position, which helps to improve the overall production efficiency and reduce labor costs. The opening and notch designed at one end of the fixed panel grid frame facilitate the clamp to be taken out to one side after wave soldering of the PCB panel, without damaging the welded components, which is beneficial to the connection of subsequent processes. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a front view structural schematic diagram of the fixed touch spring clamp embodiment one of the utility model;

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the fixed touch spring clamp embodiment one of the utility model;

[0015] Figure 3The utility model discloses fixed touch spring fixture embodiment two main view structure schematic diagram.

[0016] Figure 4 The utility model discloses fixed touch spring fixture embodiment two three -dimensional structure schematic diagram.

[0017] In the drawing: 1, fixed panel grid frame, 2, fixture cavity, 3, grid strip, 4, assembly air slot, 5, electronic device reserved slot, 6, fixed cylinder, 7, buckle piece, 8, notch. Specific implementation

[0018] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of the utility model protection.

[0019] Embodiment one

[0020] Please refer to Figures 1-2 The utility model provides a technical scheme: a fixed touch spring fixture, comprising:

[0021] Fixed panel grid frame 1 as the basic framework of whole fixture, play the key role of integration each component, build the stable operation platform for the assembly flow of touch spring, ensure that the subsequent positioning, fixed function can be realized in order, the fixed panel grid frame 1 is equipped with fixture cavity 2 for the assembly of single touch spring and the reserved PCB switch board electronic component space, creates the assembly space for single touch spring, guarantees that touch spring can embed with correct posture, avoids the subsequent welding deviation caused by improper placement, is the key structure of guaranteeing touch spring initial installation precision, reserves PCB switch board electronic component space, effectively prevents fixture installation, disassembly and the touch, extrusion electronic component in the use process, maintains the perfect electrical performance of PCB board.

[0022] The inside of the fixture cavity 2 is uniformly provided with the grid strip 3 for supporting and positioning the touch spring assembly in the fixture cavity 2, the adjacent grid strips 3 jointly divide a plurality of assembly air slots 4, and the installation position of each touch spring is clearly defined, so that the assembly work is more organized, the assembly efficiency and consistency during batch production are improved, the assembly air slots 4 are formed between the grid strips 3 to prevent the touch spring assembly from being deviated during internal positioning and the fixture assembly from touching the electronic components on the PCB switch board, so that when the fixture is assembled on the PCB board, the complex electronic component layout is avoided, and problems such as short circuit and component damage are avoided.

[0023] The fixed panel grid frame 1 is a square frame structure, which fits the shape of the common PCB switch plate, is beneficial to the clamping and installation of the fixture and the PCB plate, makes the layout of the whole fixture on the PCB plate more regular, and is convenient for operation and management, and the electronic device reserved slot 5 is arranged at the position of the middle side of the air slot 4 in the inside of the fixed panel grid frame 1, special avoiding space is provided for those irregular layout and large size special electronic devices, the compatibility of the fixture for different PCB switch plate designs is expanded, and the assembly process is prevented from being affected due to the conflict between the fixture and the electronic device.

[0024] The grid strip plate 3 near the two side walls of the fixture cavity 2 inside the fixed panel grid frame 1 is uniformly provided with a threaded hole for clamping the PCB switch plate as a fixed cylinder 6 for fixing the fixed panel grid frame 1, the fixed panel grid frame 1 is fixed on the PCB plate by cooperating with the corresponding position on the PCB switch plate and by means of the threaded hole tightening, so that the fixture and the PCB plate become a relatively stable whole, resist the shaking and displacement in production, and maintain the accurate positioning of the touch spring.

[0025] The fixed cylinder 6 extends from the grid strip plate 3 to the lower end face of the grid strip plate 3 and is vertically and oppositely downwardly protruding, the design of the vertical downward protruding extension increases the contact area with the PCB plate, so that the pressure distribution is more uniform during fixing, the local pressure is prevented from being too large to cause the deformation of the PCB plate, the flatness of the touch spring welding plane is indirectly guaranteed, and the welding effect is optimized.

[0026] Embodiment two

[0027] Please refer to Figures 3-4 The utility model provides a technical scheme: a fixed touch spring fixture, comprising:

[0028] The fixed panel grid frame 1 is the basic framework of the whole fixture, plays a key role in integrating various components, builds a stable operation platform for the assembly process of the touch spring, ensures that subsequent positioning, fixing functions can be realized in order, the fixture cavity 2 for assembling a single touch spring and reserving PCB switch plate electronic component space is arranged in the fixed panel grid frame 1, the assembly space is created for the single touch spring, the touch spring can be embedded in the correct posture, subsequent welding deviation caused by improper placement is avoided, and it is the key structure for guaranteeing the initial installation precision of the touch spring, the PCB switch plate electronic component space is reserved, the electronic components are effectively prevented from being touched and extruded during the installation, dismounting and use of the fixture, and the electrical performance of the PCB plate is maintained intact.

[0029] The inside of the clamp cavity 2 is uniformly provided with grid strip plates 3 supporting and positioning the touch spring assembly in the clamp cavity 2, and adjacent grid strip plates 3 jointly divide a plurality of assembly slots 4, clearly defining the installation position of each touch spring, making the assembly work more organized, and improving the assembly efficiency and consistency during batch production. The assembly slots 4 formed between the grid strip plates 3 prevent the touch spring from being offset during assembly and prevent the clamp from touching electronic components when assembled on the PCB switch plate, ensuring that the clamp is assembled on the PCB plate without interfering with the complex electronic component layout, avoiding problems such as short circuit and component damage.

[0030] The fixed panel grid frame 1 is a square frame with an open structure at one end. The design of one end opening and having a notch 8 facilitates the smooth removal of the clamp from one side after wave soldering, without interfering with the touch spring that has been welded, improving the smoothness and efficiency of the production process. The fixed panel grid frame 1 has three edges at the lower end, which are provided with buckle members 7 for clamping the three edges of the PCB switch plate to fix the fixed panel grid frame 1. The buckle members 7 clamp the three edges of the PCB switch plate to form a three-dimensional fixing system, which strengthens the adhesion strength of the clamp on the PCB plate and prevents the clamp from loosening and shifting.

[0031] The buckle members 7 at the two corners of the fixed panel grid frame 1 are L-shaped structures. The opening at one end of the fixed panel grid frame 1 forms a notch 8 that allows the clamp to be removed to one side after wave soldering of the PCB panel. This design can prevent damage to the touch spring and PCB plate that has been welded by forced disassembly, thereby improving production efficiency and product yield.

[0032] Specifically, in use, the fixed panel grid frame 1 in the form of a square frame is placed on the PCB switch plate that needs to be wave soldered, and the fixed cylindrical members 6 on the grid strip plates 3 are inserted into the screw holes of the switch plate to fix the fixed panel grid frame 1. The assembly slots 4 between the grid strip plates 3 are placed into the touch spring, and the length and width of the assembly slots 4 are determined according to the diameter of the spring. The electronic device reserved slot 5 is a reserved slot for other electronic components, which can prevent the touch spring from being offset.

[0033] The fixed panel grid frame 1 which is square frame and one end is open structure is invertedly placed on the PCB switch board which needs to pass wave soldering, the PCB board is below, the fixed panel grid frame 1 and the grid strip plate 3 are above, the buckle member 7 of three edges of the panel clamps the three edges of the PCB and is used to fix the panel and the PCB board, and can be mutually opposite fixed;The assembly air slot 4 between the grid strip plate 3 is placed into the touch spring, and the length and width of the assembly air slot 4 are determined according to the diameter specification of the touch spring and are used to prevent the touch spring from deviating;The notch 8 of the fixed panel grid frame 1 is the key to take out the fixed panel grid frame 1 after passing the furnace, and can avoid the deformation of the spring caused by the panel taking out, the buckle member 7 is the buckle of the panel, clamps the PCB, and when passing wave soldering, the PCB board is below, the fixed panel grid frame 1 and the grid strip plate 3 are invertedly placed on the PCB board, and the two are opposite fixed, reach the effect of fixing the touch spring.

[0034] Finally, it should be noted that: the above only for the preferred embodiments of the utility model have been described, and do not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A fixture touch spring clip, characterized by, Include: The fixed panel grid frame (1) is provided with a clamp cavity (2) for assembling a single-foot touch spring and reserving space for PCB switch board electronic components, the inner side of the clamp cavity (2) is uniformly provided with a grid strip (3) for supporting and positioning the touch spring assembly in the clamp cavity (2), the grid strip (3) forms an assembly slot (4) between them, which prevents the touch spring assembly from being positioned inside and prevents the clamp assembly from touching the electronic components on the PCB switch board.

2. The fixture of claim 1, wherein: The fixed panel grid frame (1) is a square frame structure, and the middle side of the assembly slot (4) in the fixed panel grid frame (1) is provided with an electronic device reserved slot (5).

3. A fixture touch spring clip according to claim 2, wherein: The grid strip (3) near the two side walls of the clamp cavity (2) in the fixed panel grid frame (1) is uniformly provided with a threaded hole for clamping the PCB switch board as a fixed cylinder (6) for fixing the fixed panel grid frame (1).

4. The fixture of claim 3, wherein: The fixed cylinder (6) extends from the grid strip (3) to the lower end face of the grid strip (3) and is vertically and oppositely convex.

5. The fixture of claim 1, wherein: The fixed panel grid frame (1) is a square frame with an open structure at one end, and the three edges of the lower end of the fixed panel grid frame (1) are provided with a buckle piece (7) for clamping the three edges of the PCB switch board as a fixed panel grid frame (1).

6. A fixture touch spring clip according to claim 5, wherein: The buckle piece (7) at the two corners of the fixed panel grid frame (1) is an L-shaped structure, and the opening at one end of the fixed panel grid frame (1) forms a notch (8) for allowing the clamp to be taken out in one direction after wave soldering of the PCB panel.

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