Clamping positioning jig for fish-eye terminal processing

Abstract

The utility model relates to the technical field of clamping fixture, specifically disclose a kind of fish eye terminal processing's clamping positioning fixture, including jig base, the upper end of jig base is equipped with locating seat, locating seat is equipped with discharge hole and fixed hole, discharge hole is equipped with material strip, at least two detent slots are equipped on material strip, fixed hole is arranged in the side of discharge hole, when material strip inserts discharge hole, detent slot exposes towards fixed hole, fixed hole is equipped with clamping strip, clamping strip is clamped into detent slot.The utility model clamps and holds stably, avoids the size deviation caused by vibration or stress deviation, positioning precision, without separate table, meet high-precision machining requirement.

Description

Technical Field

[0001] This utility model relates to the field of clamping fixture technology, specifically to a clamping and positioning fixture for processing fisheye terminals. Background Technology

[0002] Fisheye terminals are electrical connection devices with unique circular or elliptical openings, named for their resemblance to a fish's eye. They are widely used in the automotive, electronics, and industrial equipment industries. Fisheye terminals use a cold-pressing method instead of traditional soldering, achieving electrical connection by pressing the terminal into a conductive hole on the PCB board and utilizing the clamping force generated by elastic deformation. This technology eliminates the need for solder and flux, avoiding thermal stress damage to the PCB while reducing production costs and assembly time.

[0003] Currently, when processing fisheye terminals, precision flat-jaw pliers are generally used to clamp the workpiece, and the jaws are manually tightened to fix the workpiece. Then, the workpiece surface is manually measured using a dial indicator, and the position of the part is adjusted to align the workpiece coordinate system with the machine tool coordinate system. However, the clamping force distribution of the flat-jaw pliers is uneven, which may cause slight deformation of the workpiece, especially for thin-walled fisheye structures. During processing, vibration or force shift can easily cause dimensional deviations. At the same time, the accuracy of manual adjustment during dial indicator calibration is limited by the worker's experience and is subject to human factors such as parallax and uneven pressure, resulting in dimensional deviations after processing. It is necessary to re-clamp and recalibrate the dial indicator for secondary processing. However, when re-clamping during secondary processing, the dial indicator reference may be inconsistent with the first time, resulting in the accumulation of errors after multiple processing, making it difficult to meet high precision requirements. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a clamping and positioning fixture for processing fisheye terminals. It provides stable clamping, avoids dimensional deviations caused by vibration or force shift, and provides accurate positioning without the need for separate calibration, thus meeting the requirements of high-precision processing.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A clamping and positioning fixture for processing fisheye terminals includes a fixture base, a positioning seat at the upper end of the fixture base, a feeding hole and a fixing hole in the positioning seat, a material strip in the feeding hole, at least two locking grooves on the material strip, and a fixing hole on one side of the feeding hole. When the material strip is inserted into the feeding hole, the locking grooves protrude toward the fixing hole, and a locking strip is provided in the fixing hole, which is locked into the locking grooves.

[0007] Preferably, the fixture base is provided with a boss, and a support arm is provided between the boss and the positioning seat, and the fixture base and the positioning seat are spaced apart by the support arm.

[0008] Preferably, the boss is provided with a positioning groove, and the positioning seat is installed in the positioning groove.

[0009] Preferably, the feeding hole is vertically positioned at the center of the positioning seat and extends through the upper and lower surfaces of the positioning seat. A through hole corresponding to the position of the feeding hole is provided in the positioning groove. The fixture base is provided with a mounting hole located directly below the through hole. A spring is provided in the mounting hole, and the upper end of the spring extends through the through hole into the feeding hole and abuts against the bottom of the material strip.

[0010] Preferably, the material discharge hole has a notch that communicates with the fixing hole, and the locking groove is exposed through the notch.

[0011] Preferably, the fixing hole is horizontally disposed inside the positioning seat and penetrates both side walls of the positioning seat.

[0012] The beneficial effects of this utility model are as follows: the positioning seat is provided with a feeding hole and a fixing hole. The feeding hole is provided with a material strip, and the material strip is provided with at least two locking grooves. The fixing hole is located on one side of the feeding hole. When the material strip is inserted into the feeding hole, the locking grooves are exposed towards the fixing hole. The fixing hole is provided with a locking strip, which is inserted into the locking groove. The material strip is placed in the feeding hole and fixed by locking the locking strip into the locking groove. The clamping is stable and avoids dimensional deviations caused by vibration or force displacement. The feeding hole is directly positioned with the machine tool worktable, and the positioning is accurate, eliminating the manual calibration process and requiring no separate calibration, thus meeting the requirements of high-precision machining. Attached Figure Description

[0013] Figure 1 : This is a structural schematic diagram of an embodiment of the present utility model;

[0014] Figure 2 This is an exploded structural diagram of an embodiment of the present invention;

[0015] Figure 3 This is an exploded view of an embodiment of the present invention from below.

[0016] Figure 4 This is a schematic diagram of the material strip and clamping strip structure according to an embodiment of the present invention;

[0017] Figure 5 : This is a schematic diagram of the positioning seat structure according to an embodiment of the present utility model;

[0018] Figure 6 : This is a cross-sectional structural schematic diagram of the positioning seat according to an embodiment of the present utility model;

[0019] Explanation of the symbols in the attached diagram: 10- Fixture base, 11- Boss, 12- Support arm, 13- Positioning groove, 14- Through hole, 15- Mounting hole, 20- Positioning seat, 21- Feeding hole, 22- Fixing hole, 23- Material strip, 24- Locking strip, 25- Locking groove, 26- Notch. Detailed Implementation

[0020] To more clearly illustrate the structural features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments:

[0021] This embodiment: as follows Figure 1-6 As shown, a clamping and positioning fixture for processing fisheye terminals includes a fixture base 10, a boss 11 on the fixture base 10, a support arm 12 between the boss 11 and the positioning seat 20, and the fixture base 10 and the positioning seat 20 are spaced apart by the support arm 12. The fixture base 10 is suspended and supported by the boss 11 and the support arm 12, thus avoiding the influence of the flatness error of the fixture base 10 on the positioning seat 20.

[0022] The boss 11 is provided with a positioning groove 13, and a positioning seat 20 is provided in the positioning groove 13. The positioning groove 13 restricts the position of the positioning seat 20, ensuring that its fixed coordinate system on the fixture base 10 is consistent, avoiding manual alignment errors during clamping. The positioning seat 20 is provided with a feeding hole 21 and a fixing hole 22. The feeding hole 21 is vertically set at the center of the positioning seat 20 and runs through the upper and lower surfaces of the positioning seat 20. A material strip 23 is provided in the feeding hole 21 to ensure that the position of each workpiece in the feeding hole 21 is absolutely consistent. During batch processing, there is no need to repeat tool setting, reducing errors caused by manual operation. The positioning groove 13 is provided with a material strip 23 that is consistent with the feeding hole. The fixture base 10 has a mounting hole 15 on the through hole 14 corresponding to position 21. The mounting hole 15 is located directly below the through hole 14. A spring is installed in the mounting hole 15. The upper end of the spring passes through the through hole 14 and extends into the material discharge hole 21, abutting against the bottom of the material strip 23. The spring installed in the mounting hole 15 of the fixture base 10 abuts against the bottom of the material strip 23, providing vertical elastic support and ensuring that the bottom end of the material strip 23 is in close contact with the lower surface of the positioning seat 20, eliminating vertical gaps and facilitating quick loading and unloading of the material strip 23. At the same time, the gap between the boss 11 and the positioning seat 20 provides room for the spring at the bottom of the material strip 23 to move.

[0023] The material strip 23 is provided with two locking grooves 25. The fixing hole 22 is horizontally set in the positioning seat 20, located on one side of the material discharge hole 21, and penetrates through both side walls of the positioning seat 20. The material discharge hole 21 is provided with a notch 26, which communicates with the fixing hole 22. The locking groove 25 is exposed through the notch 26. When the material strip 23 is inserted into the material discharge hole 21, the locking groove 25 is exposed towards the fixing hole 22. The fixing hole 22 is provided with a locking strip 24, which is locked into the locking groove 25. Through the mechanical positioning of the locking strip 24 and the locking groove 25, and with the spring support, the material strip 23 can be quickly and accurately positioned without the need for calibration each time, and can be directly fixed to the preset coordinate system.

[0024] This product uses a spring to provide vertical preload, preventing the material bar 23 from axially shifting due to gravity or cutting force. The rigid fit between the clamping bar 24 and the clamping groove 25 restricts lateral displacement, forming a three-dimensional limit of vertical preload, lateral fixation, and horizontal positioning of the groove in the positioning seat 20. This ensures clamping accuracy and stability, preventing dimensional deviations caused by vibration or force shift. The discharge hole 21 is directly positioned with the machine tool table, ensuring accurate positioning, eliminating the need for manual calibration, and meeting high-precision machining requirements.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A clamping and positioning fixture for processing fisheye terminals, comprising a fixture base, characterized in that: The upper end of the fixture base is provided with a positioning seat, which has a feeding hole and a fixing hole. The feeding hole has a material strip, and the material strip has at least two locking grooves. The fixing hole is located on one side of the feeding hole. When the material strip is inserted into the feeding hole, the locking groove is exposed towards the fixing hole. The fixing hole has a locking strip, which is locked into the locking groove.

2. The clamping and positioning fixture for processing fisheye terminals according to claim 1, characterized in that: The fixture base is provided with a boss, and a support arm is provided between the boss and the positioning seat, and the fixture base and the positioning seat are spaced apart by the support arm.

3. The clamping and positioning fixture for processing fisheye terminals according to claim 2, characterized in that: The boss is provided with a positioning groove, and the positioning seat is installed in the positioning groove.

4. The clamping and positioning fixture for processing fisheye terminals according to claim 1, characterized in that: The feeding hole is vertically positioned at the center of the positioning seat and extends through the upper and lower surfaces of the positioning seat. A through hole corresponding to the position of the feeding hole is provided in the positioning groove. The fixture base is provided with a mounting hole located directly below the through hole. A spring is provided in the mounting hole, and the upper end of the spring extends through the through hole into the feeding hole and abuts against the bottom of the material strip.

5. The clamping and positioning fixture for processing fisheye terminals according to claim 1, characterized in that: The material discharge hole has a notch that connects to the fixing hole, and the locking groove is exposed through the notch.

6. The clamping and positioning fixture for processing fisheye terminals according to claim 1, characterized in that: The fixing hole is horizontally set inside the positioning seat and penetrates both side walls of the positioning seat.

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