Jig for tapping hardware fittings

By introducing a first positioning mechanism and a rotating mechanism into the tapping fixture for hardware accessories, the problem of unstable positioning of hardware accessories is solved, and stable fixation of complex shapes and accurate tapping position are achieved.

CN224169254UActive Publication Date: 2026-04-28DONGGUAN TAIMAO HARDWARE & PLASTIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN TAIMAO HARDWARE & PLASTIC CO LTD
Filing Date
2025-05-07
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing hardware tapping fixtures tend to wobble at the top when fixing hardware with a large height, and have a small contact area for hardware with complex or irregular shapes, resulting in poor positioning.

Method used

A fixture including a first positioning mechanism and a second positioning mechanism was designed. The two ends of the hardware accessories are fixed by the combination of lead screw and cylinder, and the position is adjusted by the rotation mechanism to adapt to different shapes, thereby increasing the contact points and contact area.

Benefits of technology

It achieves stable positioning of hardware accessories during the tapping process, adapts to the fixing effect of complex shapes, and ensures the accuracy of the tapping position.

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Abstract

The utility model discloses a hardware fitting tapping jig, which comprises a bottom plate, a first positioning mechanism, a second positioning mechanism and a rotating mechanism are arranged on the bottom plate, the first positioning mechanism comprises a fixed seat and a plurality of first motors fixed on the fixed seat, the output ends of the plurality of first motors are fixedly connected with screw rods, and the screw rods are fixed on the fixed seat. The second positioning mechanism comprises a top support and a plurality of air cylinders fixed to the top support, the output ends of the air cylinders are fixedly connected with positioning inner plates, and the positioning inner plates are fixedly connected with the output ends of the air cylinders. The rotating mechanism comprises a speed reducer and a second motor arranged on the speed reducer, and the output end of the second motor is fixedly connected with an eccentric disc. According to the jig for tapping the hardware fittings, the two ends of the hardware fittings can be well fixed, the contact points and the contact area are increased, and the jig is suitable for fixing the hardware fittings which are complex and irregular in shape.
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Description

Technical Field

[0001] This utility model relates to a tapping fixture, specifically a hardware fitting for tapping teeth. Background Technology

[0002] A tapping fixture for hardware accessories refers to a fixture used in the tapping process of hardware accessories. It is mainly used to fix and position the workpiece so as to keep the workpiece stable during the tapping process and ensure the quality and accuracy of the tapping.

[0003] Existing hardware tapping fixtures can usually only fix the bottom of the hardware. If the height of the hardware is large, the top will protrude from the fixture, which may cause wobbling, resulting in poor positioning or inability to fix it. At the same time, for hardware with complex or irregular shapes, the existing fixtures have a small contact area and few contact points with the hardware, which causes the hardware to move. Utility Model Content

[0004] The purpose of this utility model is to provide a fixture for tapping hardware accessories, which can effectively fix both ends of the hardware accessories and increases the contact points and contact area. It can adapt to the fixing of some complex and irregular hardware accessories and achieve a good fixing effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a jig for tapping hardware fittings, comprising a base plate, on which a first positioning mechanism, a second positioning mechanism, and a rotating mechanism are provided. The first positioning mechanism includes a fixed base and multiple first motors fixed on the fixed base. The output ends of the multiple first motors are all fixedly connected to lead screws. Positioning blocks are provided on the multiple lead screws. When the multiple lead screws rotate, they can drive the multiple positioning blocks to move respectively. Contact plates are fixed on the multiple positioning blocks. The multiple contact plates are used for primary positioning of the hardware fittings. The second positioning mechanism includes a top support and multiple cylinders fixed on the top support. The output ends of the multiple cylinders are all fixedly connected to positioning inner plates. The multiple positioning inner plates are used for secondary positioning of the hardware fittings. The rotating mechanism includes a reducer and a second motor provided on the reducer. The output end of the second motor is fixedly connected to an eccentric disc.

[0006] Preferably, the fixing seat is fixed to the upper end face of the base plate, and a support seat is provided between the fixing seat and the top support seat, with both ends of the support seat being fixedly connected to the fixing seat and the top support seat respectively.

[0007] Preferably, the multiple first motors are all horizontally arranged, and the height values ​​of the multiple first motors are equal.

[0008] Preferably, slots are provided on multiple positioning blocks, and the slots have openings on the top and sides of the positioning blocks.

[0009] Preferably, a plug is inserted into the slot and fixedly connected to the contact plate, so that the plug and the contact plate become one piece. The contact plate can be replaced by removing the plug from the slot, thereby adapting to the positioning of hardware accessories of different shapes.

[0010] Preferably, multiple cylinders are distributed on different sides of the top support, and all multiple cylinders are horizontally arranged.

[0011] Preferably, the reducer and the eccentric disc are respectively disposed on both sides of the base plate, and the reducer is fixed to the lower end face of the base plate.

[0012] Preferably, compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, by setting a first positioning mechanism and a second positioning mechanism on the base plate, can simultaneously fix both ends of the hardware parts, so that all parts of the hardware parts can maintain a stable state. Therefore, the hardware parts will not be displaced due to the entry and exit of the tapping machine during the subsequent tapping process. In addition, the second positioning mechanism can position the hardware parts from multiple different directions, increasing the contact points and contact area, and can achieve a good fixing effect even when the shape of the hardware parts is relatively complex, thereby avoiding the problem of not being able to fix some special-shaped hardware parts.

[0014] 2. This utility model, by setting a slot on the positioning block and setting an insert on the contact plate, allows the contact plate to be engaged by the insert and the slot, so that the contact plate can be replaced at any time to adapt to the use of hardware accessories of different sizes, thereby increasing the applicability of the fixture;

[0015] 3. By driving the second motor to run, the eccentric plate rotates slowly, causing the fixed seat to rotate slowly along with the top support. Finally, the eccentric rotation of the fixed seat drives the hardware to rotate to the designated position, thereby correcting the position of the hardware and making the tapping position more accurate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0017] Figure 2 This is a schematic diagram of the first positioning mechanism of this utility model;

[0018] Figure 3 This utility model Figure 2 Enlarged view of B in the middle;

[0019] Figure 4 This is a schematic diagram of the second positioning mechanism of this utility model;

[0020] Figure 5 This utility model Figure 1Sectional view of AA;

[0021] Figure 6 This is a schematic diagram of Embodiment 2 of the present invention.

[0022] The reference numerals and names in the figure are as follows: 1. Base plate; 2. First positioning mechanism; 21. Fixed seat; 22. First motor; 23. Lead screw; 24. Positioning block; 241. Slot; 25. Insert block; 26. Contact plate; 3. Second positioning mechanism; 31. Top support; 32. Cylinder; 33. Positioning inner plate; 4. Support seat; 5. Rotation mechanism; 51. Reducer; 52. Second motor; 53. Eccentric disc. Detailed Implementation

[0023] 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.

[0024] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of 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 or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0025] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0026] Example 1:

[0027] Please see Figure 1 One embodiment of this utility model is a tool for tapping hardware accessories, including a base plate 1, on which a first positioning mechanism 2 and a second positioning mechanism 3 are provided.

[0028] Please see Figure 2 The first positioning mechanism 2 includes a fixed base 21 and multiple first motors 22 fixed on the fixed base 21. The first positioning mechanism 2 also includes multiple contact plates 26. The fixed base 21 is fixed to the upper end surface of the base plate 1, and a support base 4 is provided between the fixed base 21 and the top support 31. The multiple first motors 22 are all horizontally arranged, and the height values ​​of the multiple first motors 22 are equal.

[0029] Please see Figure 3 Each of the output ends of multiple first motors 22 is fixedly connected to a lead screw 23. Each lead screw 23 is provided with a positioning block 24. When the multiple lead screws 23 are running, they can drive the multiple positioning blocks 24 to move respectively. Multiple contact plates 26 are respectively provided on the multiple positioning blocks 24. Each positioning block 24 is provided with a slot 241. The slot 241 has an opening on the top and side of the positioning block 24. An insert 25 is inserted into the slot 241. The insert 25 is fixedly connected to the contact plate 26, so that the insert 25 and the contact plate 26 become one piece. The contact plate 26 can be replaced by removing the insert 25 from the slot 241, so as to adapt to the positioning of hardware parts of different shapes. The multiple contact plates 26 are used to position the hardware parts once.

[0030] Please see Figure 4 The second positioning mechanism 3 includes a top support 31 and multiple cylinders 32 fixed on the top support 31. The two ends of the support 4 are fixedly connected to the fixed base 21 and the top support 31 respectively. The multiple cylinders 32 are distributed on different sides of the top support 31, and the multiple cylinders 32 are all horizontally arranged. There are at least eight cylinders 32. The output ends of the multiple cylinders 32 are fixedly connected to the positioning inner plate 33. The multiple positioning inner plates 33 are used for secondary positioning of hardware accessories.

[0031] Please see Figure 5 The tooling for tapping the hardware accessories also includes a rotating mechanism 5. The rotating mechanism 5 includes a reducer 51 and a second motor 52 mounted on the reducer 51. An eccentric disk 53 is fixedly connected to the output end of the second motor 52. The reducer 51 and the eccentric disk 53 are respectively mounted on both sides of the base plate 1, and the reducer 51 is fixed to the lower end face of the base plate 1. The fixing seat 21 is fixed on the eccentric disk 53, and the fixing seat 21 and the eccentric disk 53 are eccentrically designed.

[0032] Example 2:

[0033] Please see Figure 6 The structure of this embodiment is basically the same as that of Embodiment 1. The difference is that the shape of the contact plate 26 is different from that of Embodiment 1, in order to adapt to the fixing of hardware accessories of different shapes. Other parts not described in this embodiment refer to Embodiment 1, and will not be repeated here.

[0034] Please refer to the following: Figures 1 to 6 In this invention, the hardware component passes through the top support 31 from top to bottom and enters the cavity of the fixed base 21. Subsequently, multiple first motors 22 drive multiple lead screws 23 to rotate, causing multiple positioning blocks 24 to drive multiple contact plates 26, thereby approaching the hardware component and positioning it for the first time. Then, multiple cylinders 32 operate, causing multiple positioning inner plates 33 to perform secondary positioning of the hardware component. Since there are many positioning inner plates 33, better positioning can be achieved by increasing the contact points and contact area with the hardware component, so that the end of the hardware component away from the base plate 1 will not shake, thus ensuring the stability of the subsequent tapping process. If the hardware component is slightly eccentric, the second motor 52 can drive the eccentric plate 53 to rotate slowly, causing the fixed base 21 to drive the top support 31 to rotate slowly as well. Finally, the eccentric rotation of the fixed base 21 rotates the hardware component to the designated position and realizes the position correction of the hardware component, making the tapping position more accurate.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A jig for tapping metal fittings, comprising a base plate (1), characterized in that: The base plate (1) is provided with a first positioning mechanism (2), a second positioning mechanism (3) and a rotating mechanism (5). The first positioning mechanism (2) includes a fixed base (21) and a plurality of first motors (22) fixed on the fixed base (21). The output ends of the plurality of first motors (22) are all fixedly connected to lead screws (23). The plurality of lead screws (23) are all provided with positioning blocks (24). The plurality of positioning blocks (24) are all fixedly connected to contact plates (26). The second positioning mechanism (3) includes a top support (31) and a plurality of cylinders (32) fixed on the top support (31). The output ends of the plurality of cylinders (32) are all fixedly connected to positioning inner plates (33). The rotating mechanism (5) includes a reducer (51) and a second motor (52) provided on the reducer (51). The output end of the second motor (52) is fixedly connected to an eccentric disk (53).

2. The tooling for tapping metal fittings according to claim 1, characterized in that: The fixed seat (21) is fixed to the upper surface of the base plate (1), and a support seat (4) is provided between the fixed seat (21) and the top support (31). The two ends of the support seat (4) are fixedly connected to the fixed seat (21) and the top support (31) respectively.

3. The tooling for tapping metal fittings according to claim 1, characterized in that: The multiple first motors (22) are all horizontally arranged, and the height values ​​of the multiple first motors (22) are equal.

4. The tooling for tapping metal fittings according to claim 1, characterized in that: Each of the multiple positioning blocks (24) is provided with a slot (241), and the slot (241) is provided with an opening on the top and side of the positioning block (24).

5. A tooling fixture for tapping metal fittings according to claim 4, characterized in that: The slot (241) is fitted with a plug (25), which is fixedly connected to the contact plate (26).

6. The tooling for tapping metal fittings according to claim 1, characterized in that: Multiple cylinders (32) are distributed on different sides of the top support (31), and all cylinders (32) are horizontally arranged.

7. A tooling fixture for tapping metal fittings according to claim 1, characterized in that: The reducer (51) and the eccentric disc (53) are respectively disposed on both sides of the base plate (1), and the reducer (51) is fixed to the lower end face of the base plate (1).

8. A tooling fixture for tapping metal fittings according to claim 1, characterized in that: The fixed base (21) is fixed on the eccentric disk (53), and the fixed base (21) and the eccentric disk (53) are eccentrically designed.