Positioning tool for electronic product welding

Abstract

This utility model discloses a positioning fixture for welding electronic products, including a U-shaped base. A support frame is rotatably mounted on the U-shaped base, and an adjustable clamping structure is provided inside the support frame. Both ends of the support frame are rotatably engaged with the side wall of the U-shaped base via fixed rotating shafts. One end of the fixed rotating shaft extends to the outside of the U-shaped base and is connected to the output end of a flipping drive mechanism. This utility model relates to the field of electronic product processing technology. By using movable clamps and positioning clamps to clamp and fix the electronic temperature controller control board (i.e., the basic PCB board), the shaking caused by the welding of electronic components to the basic PCB board can be effectively avoided. At the same time, the rotation control of the fixed rotating shaft by the flipping drive mechanism on the outside of the U-shaped support can realize the flipping and tilting adjustment of the support frame, which can further improve the convenience of welding operations, greatly improve welding efficiency, and increase product yield.

Description

Technical Field

[0001] This utility model relates to the field of electronic product processing technology, specifically to a positioning fixture for welding electronic products. Background Technology

[0002] As a core device in modern temperature control, electronic thermostats offer advantages primarily in three aspects: technical performance, functional expansion, and adaptability to various scenarios. The control board of an electronic thermostat is the core component of an electronic temperature control system. Its functionality relies on the collaborative work of electronic circuits and a microprocessor. During the manufacturing process of the control board, a large number of specialized electronic components (such as thermistors, microprocessors, relays, and infrared sensors) need to be manually soldered onto a base PCB board. Currently, when manually soldering PCBs, the PCB is typically placed directly on a workbench, and components are soldered onto it one by one. Because the PCB is not fixed, it is easily moved during the soldering process, leading to soldering errors and reducing the product yield. Therefore, this project was developed to address these issues. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a positioning fixture for welding electronic products, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a positioning fixture for welding electronic products, including a U-shaped base, a support frame rotatably mounted on the U-shaped base, an adjustable clamping structure provided inside the support frame, and the two ends of the support frame rotatably engaging with the side wall of the U-shaped base via fixed rotating shafts, one end of the fixed rotating shaft extending out to the outside of the U-shaped base and connected to the output end of the flipping drive mechanism; The support frame includes a fixed seat and an equipment seat at both ends. The fixed seat and the equipment seat are connected by two guide rods. The fixed seat, the equipment seat and the two guide rods are welded in sequence to form a rectangular frame structure. The adjustable clamping structure includes a positioning clamp plate mounted on a fixed base, a movable block slidably mounted on the guide rod, a movable clamp plate at one end of the movable block, and a reciprocating adjustment component connected to one end of the movable block.

[0005] The reciprocating adjustment assembly includes a reciprocating control component mounted on the equipment base and a sliding support component mounted on the side wall of the moving block. The moving end of the reciprocating control component and the moving end of the sliding support component are hinged together by a scissor arm.

[0006] The aforementioned reciprocating control component includes a rectangular slot mounted on the equipment base, in which a pull rod is rotatably mounted. Slider blocks are connected to both sides of the pull rod via screw nuts. The sliders are slidably engaged with the rectangular slot and hinged with the scissor arm. One end of the pull rod is connected to an integrated servo geared motor.

[0007] The aforementioned sliding support component includes a guide rail and a sliding block. The guide rail is disposed on the side wall of the moving block and is symmetrically arranged with the transmission screw. The sliding block is symmetrically slidably fitted on the guide rail and is respectively hinged to the end of the scissor arm.

[0008] The aforementioned flipping drive mechanism includes a servo motor mounted on the side wall of the U-shaped seat. The drive end of the servo motor is connected to a self-locking reducer, and the output end of the self-locking reducer is connected to the exposed end of the fixed rotating shaft via a reversing transmission component.

[0009] The aforementioned reversing transmission component includes a gearbox, a drive shaft, and a transmission shaft. The drive shaft and transmission shaft are rotatably inserted into the gearbox. One end of the drive shaft is connected to the output end of the self-locking reducer, and a drive bevel gear is provided on the other end of the drive shaft. One end of the transmission shaft is connected to a fixed rotating shaft, and a driven bevel gear is provided on the other end of the transmission shaft. The driven bevel gear meshes with the drive bevel gear.

[0010] The aforementioned positioning clamp and movable clamp have symmetrically provided limit slots on their side walls. Beneficial effects

[0011] This utility model provides a positioning fixture for welding electronic products. It offers the following advantages: This positioning fixture for welding electronic products uses a rectangular frame structure formed by welding a fixed base, an equipment base, and two guide rods sequentially as a support frame. The position of the moving block and the movable clamping plate is adjusted by a reciprocating control component on an adjustable clamping structure. The movable clamping plate and the positioning clamping plate clamp and fix the electronic temperature controller control board (i.e., the base PCB board), effectively preventing shaking during the welding process between electronic components and the base PCB board. Simultaneously, the rotating drive mechanism on the outside of the U-shaped support controls the rotation of the fixed shaft, enabling the rotation and tilt adjustment of the support frame. This further improves the convenience of welding operations, significantly increasing welding efficiency and product yield. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of a positioning fixture for welding electronic products according to the present invention.

[0013] Figure 2 This is an isometric structural diagram of a positioning fixture for welding electronic products according to the present invention.

[0014] Figure 3 This is a top view of the positioning fixture for welding electronic products according to the present invention.

[0015] Figure 4 This is a front cross-sectional view of the positioning fixture for welding electronic products according to the present invention.

[0016] In the diagram: 1. U-shaped base; 2. Support frame; 3. Fixed rotating shaft; 4. Positioning clamp; 5. Moving block; 6. Movable clamp; 7. Scissor lift arm; 8. Rectangular groove; 9. Pull rod; 10. Slider; 11. Integrated servo geared motor; 12. Guide rail; 13. Sliding block; 14. Servo motor; 15. Self-locking reducer; 16. Gearbox; 17. Drive shaft; 18. Transmission shaft; 19. Drive bevel gear; 20. Driven bevel gear; 201. Fixed seat; 202. Equipment base; 203. Guide rod. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example: Refer to the appendix of the instruction manual Figure 1-4As can be seen, this application specifically designs a positioning fixture for welding electronic products. A support frame 2 is rotatably mounted on a U-shaped base 1. An adjustable clamping structure is provided inside the support frame 2. The two ends of the support frame 2 are rotatably engaged with the side wall of the U-shaped base 1 through fixed rotating shafts 3. One end of the fixed rotating shaft 3 extends to the outside of the U-shaped base 1 and is connected to the output end of the flipping drive mechanism. The support frame 2 includes a fixed seat 201 and a device seat 202 at both ends. The fixed seat 201 and the device seat 202 are connected by two guide rods 203. The fixed seat 201, the device seat 202, and the two guide rods 203 are welded in sequence to form a rectangular frame structure. The adjustable clamping structure includes a positioning clamping plate 4 mounted on the fixed seat 201. A moving block 5 is slidably mounted on the guide rod 203. A movable clamping plate 6 is provided at one end of the moving block 5. The positioning clamp 4 and the movable clamp 6 have symmetrical limit slots on their side walls. One end of the moving block 5 is connected to a reciprocating adjustment component. The fixed seat 201, the equipment seat 202 and the two guide rods 203 are welded in sequence to form a rectangular frame structure as the support frame 2. The position of the moving block 5 and the movable clamp 6 is adjusted by the reciprocating control component on the adjustable clamping structure. The electronic temperature controller control board (i.e., the base PCB board) is clamped and fixed by the movable clamp 6 and the positioning clamp 4, which can effectively avoid the shaking caused by the welding of electronic components and the base PCB board. At the same time, the rotating drive mechanism on the outside of the U-shaped support controls the rotation of the fixed rotating shaft 3, which can realize the rotation and tilt adjustment of the support frame 2, further improving the convenience of welding operations and greatly improving the welding efficiency and product yield.

[0019] In specific implementation, the aforementioned reciprocating adjustment assembly includes a reciprocating control component mounted on the equipment base 202 and a sliding support component mounted on the side wall of the moving block 5. The moving end of the reciprocating control component and the moving end of the sliding support component are hinged together by a scissor arm 7. The reciprocating control component includes a rectangular groove 8 mounted on the equipment base 202. A pull rod is rotatably mounted in the rectangular groove 8. Slider 10s are connected to both sides of the pull rod 9 via screw nuts. The slider 10s are slidably engaged with the rectangular groove 8 and hinged with the scissor arm 7. One end of the pull screw is connected to an integrated servo geared motor 11. The aforementioned sliding support component includes a guide rail 12 and a sliding block 13. The guide rail 12 is set on the side wall of the moving block 5 and is symmetrically arranged with the transmission screw. The sliding block 13 is symmetrically slidably fitted on the guide rail 12 and is respectively hinged to the end of the scissor arm 7. In use, one end of the electronic temperature controller base PCB board is inserted into the limiting slot on the side wall of the positioning clamp 4. The integrated servo geared motor 11 is started by the controller, and the integrated servo geared motor 11 controls the rotation of the pull screw. The rotation of the pull screw then moves the screw along the wire. Under the action of the lever nut, the two sliders 10 move towards each other, thereby pushing the scissor arm 7 to expand as a whole. This pushes the moving block 5 and the movable clamping plate 6 towards the positioning clamping plate 4. Then, the movable clamping plate 6 and the positioning clamping plate 4 are used to achieve positioning and clamping of the base PCB board. The structure is compact, the clamping effect is stable and reliable, and it can effectively prevent the base PCB board from shaking during the welding operation. Similarly, after the welding operation is completed, the drive end of the integrated servo geared motor 11 is controlled to rotate in the opposite direction, which can release the clamping limit effect on the base PCB board. It should be noted that the integrated servo geared motor 11 is a precision drive device that integrates the servo drive motor and the reduction mechanism. It has the characteristics of compact structure, high transmission efficiency and high control precision. It is widely used in industrial automation, robotics, CNC equipment and other fields. The integrated servo geared motor 11 is used to precisely control the speed of the pull screw, which can effectively ensure the precise adjustment of the position of the slider 10. This, together with the scissor arm 7 and the sliding support component, enables the rapid positioning and adjustment of the movable clamping plate 6, thereby meeting the effective control of the clamping force of the base PCB board.

[0020] In a preferred embodiment, the aforementioned flipping drive mechanism includes a servo motor 14 mounted on the side wall of the U-shaped base. The drive end of the servo motor 14 is connected to a self-locking reducer 15. The output end of the self-locking reducer 15 is connected to the exposed end of the fixed rotating shaft 3 via a reversing transmission component. This reversing transmission component includes a gearbox 16, a drive shaft 17, and a transmission shaft 18. The drive shaft 17 and transmission shaft 18 are rotatably inserted into the gearbox 16. One end of the drive shaft 17 is connected to the output end of the self-locking reducer 15, and the other end of the drive shaft 17 is equipped with a drive bevel gear 19. One end of the transmission shaft 18 is connected to the fixed rotating shaft 3, and the other end of the transmission shaft 18 is equipped with a driven bevel gear 20. The driven bevel gear 20 meshes with the drive bevel gear 19. Since some operations require... To rotate the base PCB board 360°, the servo motor 14 can be controlled by the controller. With the assistance of the self-locking reducer 15, the drive shaft 17 is oriented and rotated at a fixed angle. The rotation of the drive shaft 17 drives the drive bevel gear 19, which in turn drives the driven bevel gear 20 and the driven shaft to rotate synchronously. The rotation of the driven shaft then drives the fixed shaft 3 and the support frame 2 to rotate, thus achieving the overall rotation of the support frame 2. The structure is simple and the operation is convenient. It is important to note that the self-locking reducer 15 should be selected from the Guizhou Yutian Motor CH28-100-300-S type self-locking reducer 15 with an electromagnetic brake. In the stopped state, the output shaft automatically locks, keeping the drive shaft 17 in its current position and preventing the support frame 2 from rotating during welding operations.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture for welding electronic products, comprising a U-shaped base, characterized in that, A support frame is rotatably mounted on the U-shaped base. An adjustable clamping structure is provided inside the support frame. Both ends of the support frame are rotatably engaged with the side wall of the U-shaped base via fixed rotating shafts. One end of the fixed rotating shaft extends out to the outside of the U-shaped base and is connected to the output end of the flipping drive mechanism. The support frame includes a fixed seat and an equipment seat at both ends. The fixed seat and the equipment seat are connected by two guide rods. The fixed seat, the equipment seat and the two guide rods are welded in sequence to form a rectangular frame structure. The adjustable clamping structure includes a positioning clamp plate set on a fixed base, a movable block slidably set on the guide rod, a movable clamp plate set at one end of the movable block, and a reciprocating adjustment component connected to one end of the movable block.

2. The positioning fixture for welding electronic products according to claim 1, characterized in that, The reciprocating adjustment assembly includes a reciprocating control component mounted on the equipment base and a sliding support component mounted on the side wall of the moving block. The moving end of the reciprocating control component and the moving end of the sliding support component are hinged together by a scissor arm.

3. The positioning fixture for welding electronic products according to claim 2, characterized in that, The reciprocating control component includes a rectangular slot mounted on the equipment base, a pull rod rotatably mounted in the rectangular slot, sliders connected to both sides of the pull rod via screw nuts, the sliders slidingly engaging with the rectangular slot, the sliders hingedly engaging with the scissor arm, and an integrated servo geared motor connected to one end of the pull rod.

4. The positioning fixture for welding electronic products according to claim 3, characterized in that, The sliding support component includes a guide rail and a sliding block. The guide rail is disposed on the side wall of the moving block and is symmetrically arranged with the transmission screw. The sliding block is symmetrically slidably fitted on the guide rail and is respectively hinged to the end of the scissor arm.

5. A positioning fixture for welding electronic products according to claim 1, characterized in that, The flipping drive mechanism includes a servo motor mounted on the side wall of the U-shaped seat. The drive end of the servo motor is connected to a self-locking reducer. The output end of the self-locking reducer is connected to the exposed end of the fixed rotating shaft through a reversing transmission component.

6. The positioning fixture for welding electronic products according to claim 5, characterized in that, The reversing transmission component includes a gearbox, a drive shaft, and a transmission shaft. The drive shaft and the transmission shaft are rotatably inserted into the gearbox. One end of the drive shaft is connected to the output end of the self-locking reducer, and a drive bevel gear is provided on the other end of the drive shaft. One end of the transmission shaft is connected to a fixed rotating shaft, and a driven bevel gear is provided on the other end of the transmission shaft. The driven bevel gear meshes with the drive bevel gear.

7. A positioning fixture for welding electronic products according to any one of claims 1-6, characterized in that, The positioning clamp and the movable clamp have symmetrically provided limit slots on their side walls.

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