Efficient and accurate tapping jig special for cuboid product

By designing a combined structure of positioning groove, workpiece positioning hole and limiting component, the problem of unstable clamping in traditional tapping equipment was solved, enabling efficient and precise tapping of cuboid workpieces, improving processing quality and efficiency, and reducing production costs.

CN224169257UActive Publication Date: 2026-04-28DONGGUAN KINMEN IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN KINMEN IND CO LTD
Filing Date
2025-05-14
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Traditional tapping equipment is prone to unstable clamping when clamping rectangular workpieces, causing the workpiece to wobble, affecting processing accuracy and efficiency, and making maintenance inconvenient.

Method used

A high-efficiency and precise tapping fixture for cuboid products was designed. It adopts a combination structure of positioning groove and workpiece positioning hole, combined with limit component and discharge groove to ensure reliable fixation of workpiece, avoid workpiece vibration, and discharge waste through conical protrusion.

Benefits of technology

It improves the tapping accuracy and efficiency of cuboid workpieces, reduces the workpiece scrap rate, simplifies the maintenance process, and lowers production costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224169257U_ABST
Patent Text Reader

Abstract

The efficient and accurate tapping jig special for the cuboid product comprises a jig body, one end of the top face of the jig body extends upwards to form a boss, a positioning clamping groove horizontally penetrating through the two end walls and the top wall of the boss is formed in the boss, workpiece positioning grooves are formed in the two opposite side walls of the positioning clamping groove respectively, and the workpiece positioning grooves are matched with the workpiece positioning grooves. The two workpiece positioning grooves are matched with the positioning clamping groove to form a workpiece positioning hole, the workpiece positioning hole penetrates to the two end walls of the boss, and the cross section of the positioning clamping groove and the cross section of the workpiece positioning hole are both rectangular. Through the design of the positioning clamping groove and the workpiece positioning hole, a cuboid workpiece can be reliably fixed in the tapping process, the displacement and vibration of the workpiece are effectively reduced, the tapping precision is improved, the tapping efficiency and quality of cuboid products in batches can be greatly improved, and the rejection rate of the workpiece is low; and later maintenance is convenient, and the workpiece production cost is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of mechanical processing auxiliary equipment technology, specifically a high-efficiency and precise tapping fixture for rectangular products. Background Technology

[0002] Traditional tapping equipment, designed to accommodate workpieces of various shapes, has a relatively complex structure, is prone to malfunction, and is inconvenient to maintain. This is especially true when tapping large batches of plate-shaped workpieces, such as cuboids. Traditional tapping equipment, being adapted to different workpiece shapes, is prone to instability when clamping cuboids, causing workpiece wobbling, affecting machining accuracy, resulting in irregular threads, poor product quality, high scrap rates, and low processing efficiency. Therefore, it is necessary to develop a dedicated, high-efficiency, and precise tapping fixture for cuboid products. Utility Model Content

[0003] The purpose of this utility model is to provide a high-efficiency and precise tapping fixture for cuboid products with a relatively simple structure that can achieve efficient positioning of workpieces. It can significantly improve the tapping efficiency and quality of batch cuboid products, and is easy to maintain, thus reducing production costs. This solves the problem mentioned in the background art that traditional tapping equipment is prone to unstable clamping and workpiece shaking when clamping cuboid workpieces.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A high-efficiency and precise tapping fixture for cuboid products includes a fixture body. A boss extends upward from one end of the top surface of the fixture body. The boss has a positioning groove that extends horizontally through its two end walls and the top wall. Workpiece positioning grooves are respectively formed on the opposite side walls of the positioning groove. The two workpiece positioning grooves cooperate with the positioning groove to form a workpiece positioning hole. The workpiece positioning hole extends through the two end walls of the boss. The cross-sections of the positioning groove and the workpiece positioning hole are both rectangular.

[0006] Preferably, the two corners of the workpiece positioning groove are respectively provided with workpiece corner clearance grooves, and the two ends of the workpiece corner clearance grooves extend horizontally to the two end walls of the boss.

[0007] Preferably, the extension direction of the workpiece's sharp corner clearance groove is set at an angle to the horizontal direction.

[0008] Preferably, the cross-sectional shape of the workpiece's sharp corner clearance groove is one of a rectangle, triangle, circle, or trapezoid.

[0009] Preferably, a limiting element is provided in the workpiece positioning groove, and the limiting element is provided at one or both ends of the workpiece positioning groove.

[0010] Preferably, the width of the workpiece positioning hole is larger than the width of the positioning groove, and the workpiece positioning hole and the positioning groove cooperate to form a cross hole structure.

[0011] Preferably, the bottom of the positioning clamping groove is provided with a discharge groove that extends through both ends of the boss and communicates with the positioning clamping groove.

[0012] Preferably, the upper two side walls of the positioning clamping groove are respectively provided with arc-shaped grooves in the vertical direction, and the two arc-shaped grooves cooperate with the positioning clamping groove to form a tap positioning hole, which penetrates downward into the workpiece positioning hole.

[0013] Preferably, the bottom wall of the discharge trough is sloping.

[0014] Preferably, a groove is provided at the connection between the top surface of the fixture body and the boss, and a conical protrusion is provided in the groove, the top of the conical protrusion being connected to the bottom of the discharge trough.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The design of the positioning groove and workpiece positioning hole ensures that the cuboid workpiece can be reliably fixed during the tapping process, effectively reducing workpiece displacement and vibration, improving tapping accuracy, significantly improving the tapping efficiency and quality of batch cuboid products, and reducing the workpiece scrap rate; in addition, it is convenient for later maintenance and reduces the workpiece production cost.

[0017] 2. Both workpiece positioning slots are provided with workpiece sharp corner clearance slots at the corners to accommodate the four sharp corners of the cuboid workpiece, thereby effectively clearing the four sharp corners of the cuboid workpiece, avoiding damage to the four sharp corners of the cuboid workpiece, and improving the ease of workpiece assembly and increasing clamping efficiency.

[0018] 3. A limiting component is provided in the workpiece positioning groove. The limiting component is set at one or both ends in the workpiece positioning groove. The limiting component is a limiting block or a limiting rod, which is used to position the cuboid workpiece so as to accurately tap the cuboid workpiece. The position of the limiting component in the workpiece positioning groove can be adjusted to adapt to workpieces of different length specifications.

[0019] 4. The bottom wall of the discharge trough is sloping to facilitate the sliding of tapping waste. The top of the conical protrusion is connected to the bottom of the slope of the discharge trough so that the tapping waste discharged from the discharge trough can be further discharged into the groove and discharged through the conical protrusion, avoiding the accumulation of tapping waste in the discharge trough and reducing the number of times the discharge trough needs to be cleaned. Attached Figure Description

[0020] Figure 1 This is a perspective view of Example 1 of the high-efficiency and precision tapping fixture for cuboid products of this utility model;

[0021] Figure 2 This is a front view of Embodiment 1 of the high-efficiency and precision tapping fixture for cuboid products of this utility model;

[0022] Figure 3 This is a side cross-sectional view of Example 1 of the high-efficiency and precision tapping fixture for rectangular products of this utility model;

[0023] Figure 4 This is a perspective view of Example 2 of a utility model of a high-efficiency and precise dental tapping fixture for rectangular products.

[0024] The markings in the diagram correspond to: 1. Fixture body; 11. Fixture body fixing bolt hole; 12. Groove; 13. Conical protrusion; 2. Boss; 21. Positioning clamp groove; 22. Workpiece positioning groove; 23. Workpiece positioning hole; 24. Workpiece sharp corner clearance groove; 25. Discharge groove; 26. Arc groove; 27. Tap positioning hole. Detailed Implementation

[0025] 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.

[0026] Example 1

[0027] Please see Figures 1-3 A high-efficiency and precise tapping fixture for cuboid products includes a fixture body 1, with a boss 2 extending upward from one end of the top surface of the fixture body 1. The boss 2 has horizontally penetrating positioning grooves 21 through its two end walls and top wall. Workpiece positioning grooves 22 are respectively formed on the opposite side walls of the positioning grooves 21. The two workpiece positioning grooves 22 cooperate with the positioning grooves 21 to form workpiece positioning holes 23, which penetrate to the two end walls of the boss 2. Both the positioning grooves 21 and the workpiece positioning holes 23 have rectangular cross-sections. The shape of the workpiece positioning holes 23 is adapted to the shape of the cuboid workpiece, and the width of the workpiece positioning holes 23 is larger than the width of the positioning grooves 21. The workpiece positioning holes 23 and the positioning grooves 21 cooperate to form a cross-shaped hole structure.

[0028] The design of the positioning groove 21 and the workpiece positioning hole 23 enables the cuboid workpiece to be reliably fixed during the tapping process, effectively reducing workpiece displacement and vibration, improving tapping accuracy, significantly improving the tapping efficiency and quality of batch cuboid products, resulting in a low workpiece scrap rate; and facilitating subsequent maintenance, thus reducing workpiece production costs.

[0029] The workpiece positioning groove 22 has two corner relief grooves 24 at its upper and lower corners. The two ends of each corner relief groove 24 extend horizontally to the two end walls of the boss 2. The extension direction of each corner relief groove 24 forms an angle with the horizontal direction. The cross-sectional shape of each corner relief groove 24 is rectangular, triangular, circular, or trapezoidal. In this embodiment 1, corner relief grooves 24 are provided at the corners of both workpiece positioning grooves 22 to accommodate the four sharp corners of the cuboid workpiece, effectively avoiding damage to the four sharp corners. This also improves the ease of workpiece assembly and increases clamping efficiency.

[0030] Furthermore, a limiting element (not shown) is provided within the workpiece positioning groove 22. The limiting element is located at one or both ends of the workpiece positioning groove 22. The limiting element is a limiting block or a limiting rod, used to position the cuboid workpiece so that the cuboid workpiece can be precisely tapped. The position of the limiting element within the workpiece positioning groove 22 is adjustable to accommodate workpieces of different lengths.

[0031] Please see Figures 1-2 The bottom of the positioning clamping groove 21 is provided with a discharge groove 25 that extends through to both ends of the boss 2 and communicates with the positioning clamping groove 21. In this embodiment 1, the cross-section of the discharge groove 25 is rectangular. The width of the discharge groove 25 is larger than the width of the clamping groove to facilitate smoother discharge of tapping waste. In this embodiment 1, the bottom surface of the discharge groove 25 is higher than the top surface of the fixture body 1.

[0032] Please see Figure 3 The bottom surface of the fixture body 1 is provided with several body fixing bolt holes 11. The fixture body 1 can be quickly positioned by the cooperation of the body fixing bolt holes 11 and the bolts, thereby improving the processing efficiency.

[0033] Example 2

[0034] Please see Figure 4 The structure of Embodiment 2 is largely the same as that of Embodiment 1, except that arc-shaped grooves 26 are respectively formed on the upper two side walls of the positioning groove 21 along the vertical direction. The two arc-shaped grooves 26 cooperate with the positioning groove 21 to form a tap positioning hole 27. The tap positioning hole 27 extends downward into the workpiece positioning hole 23 to guide the tapping workpiece for precise tapping. In this Embodiment 2, one or more tap positioning holes 27 are provided, and the length direction of the tap positioning hole 27 is perpendicular to the length direction of the workpiece positioning hole 23.

[0035] Please see Figure 4The bottom wall of the discharge trough 25 is sloped to facilitate the sliding of tapping waste. A groove 12 is provided at the connection between the top surface of the fixture body 1 and the boss 2. A conical protrusion 13 is provided in the groove 12. The top of the conical protrusion 13 is connected to the bottom of the slope of the discharge trough 25, so that the tapping waste discharged from the discharge trough 25 is further discharged into the groove 12 and discharged through the conical protrusion 13, avoiding the accumulation of tapping waste in the discharge trough 25 and reducing the number of times the discharge trough 25 needs to be cleaned.

[0036] This utility model discloses a high-efficiency and precise tapping fixture for cuboid products. It has a simple structure and is easy to operate. The fixture body 1 can be quickly fixed through the fixing bolt holes 11. Then, the cuboid workpiece is clamped in the workpiece positioning hole 23. The workpiece sharp corner avoidance groove 24 avoids the four sharp corners of the cuboid workpiece, making the assembly more convenient. After the cuboid workpiece is reliably fixed in the workpiece positioning hole 23, the cuboid workpiece can be precisely tapped through the positioning clamping groove 21 and the tap positioning hole 27. The tapping waste generated after tapping is discharged through the discharge groove 25 into the groove 12 of the boss 2, and the tapping waste is completely discharged through the conical protrusion 13 in the groove 12.

[0037] 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 high-efficiency and precise tapping fixture for rectangular products, comprising a fixture body (1), characterized in that: The fixture body (1) has a boss (2) extending upward from one end of its top surface. The boss (2) has a positioning groove (21) that extends horizontally through its two end walls and top wall. The two opposite side walls of the positioning groove (21) have workpiece positioning grooves (22). The two workpiece positioning grooves (22) cooperate with the positioning groove (21) to form a workpiece positioning hole (23). The workpiece positioning hole (23) extends through the two end walls of the boss (2). The cross-sections of the positioning groove (21) and the workpiece positioning hole (23) are both rectangular.

2. The high-efficiency and precision tapping fixture for cuboid products according to claim 1, characterized in that: The workpiece positioning groove (22) has two corners with workpiece sharp corner clearance grooves (24) respectively, and the two ends of the workpiece sharp corner clearance grooves (24) extend horizontally to the two end walls of the boss (2).

3. The high-efficiency and precise tapping fixture for cuboid products according to claim 2, characterized in that: The extension direction of the workpiece's sharp corner clearance groove (24) is set at an angle to the horizontal direction.

4. The high-efficiency and precise tapping fixture for cuboid products according to claim 2 or 3, characterized in that: The cross-sectional shape of the workpiece corner clearance groove (24) is one of rectangle, triangle, circle or trapezoid.

5. The high-efficiency and precise tapping fixture for cuboid products according to claim 1, characterized in that: The workpiece positioning groove (22) is provided with a limiting element, which is located at one or both ends of the workpiece positioning groove (22).

6. The high-efficiency and precise tapping fixture for cuboid products according to claim 1, characterized in that: The width of the workpiece positioning hole (23) is larger than the width of the positioning groove (21), and the workpiece positioning hole (23) and the positioning groove (21) cooperate to form a cross hole structure.

7. The high-efficiency and precise tapping fixture for cuboid products according to claim 1, characterized in that: The bottom of the positioning clamping groove (21) is provided with a discharge groove (25) that extends through to both ends of the boss (2) and communicates with the positioning clamping groove (21).

8. The high-efficiency and precision tapping fixture for cuboid products according to claim 1, characterized in that: The upper two sides of the positioning groove (21) are respectively provided with arc-shaped grooves (26) in the vertical direction. The two arc-shaped grooves (26) cooperate with the positioning groove (21) to form a tap positioning hole (27). The tap positioning hole (27) extends downward into the workpiece positioning hole (23).

9. The high-efficiency and precise tapping fixture for cuboid products according to claim 7, characterized in that: The bottom wall of the discharge trough (25) is sloping.

10. The high-efficiency and precision tapping fixture for cuboid products according to claim 9, characterized in that: A groove (12) is provided at the connection between the top surface of the fixture body (1) and the boss (2). A conical protrusion (13) is provided in the groove (12). The top of the conical protrusion (13) is connected to the bottom of the discharge trough (25).