A high-precision positioning fixture device for preventing eccentricity of a button tapping

Abstract

The utility model discloses a high accuracy button tapping positioning fixture device of preventing eccentricity relates to button processing equipment's technical field, including base, the top of base is provided with support frame, and a plurality of with support frame as center annular array arrangement's clamping mechanism, and clamping mechanism includes movable sliding frame, limit support, movable clamping plate and touch switch, and the bottom of movable sliding frame and base sliding fit connection, and limit support and movable sliding frame's top fixed connection, and movable clamping plate and limit support sliding fit connection, and touch switch and limit support fixed connection, through annular array arrangement's clamping mechanism, can from multiple evenly distributed direction to button clamping, make the clamping force that button received is balanced symmetry, and the central positioning effect of combination support frame, thoroughly solved the eccentric problem that traditional fixture single -sided stress or positioning point single -cause, greatly promoted the coaxiality of button tapping and thread processing accuracy, and the consistency of product quality is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of button processing equipment, specifically to a high-precision button tapping positioning fixture device to prevent eccentricity. Background Technology

[0002] In the button manufacturing industry, the tapping process is a crucial step in ensuring the performance of buttons, and its processing precision directly affects the assembly effect of buttons with clothing, bags, and other products. With the market's increasing demands for button quality and the growing need for diversified button products, button tapping processes place higher requirements on the accuracy and adaptability of positioning fixtures.

[0003] Most existing button tapping positioning fixtures adopt a single-sided clamping or a few positioning points clamping structure design, which cannot apply uniform clamping force to the button from multiple directions. This makes the button prone to radial displacement or circumferential rotation during the tapping process due to uneven force, which leads to tapping eccentricity problem, seriously affecting the coaxiality and accuracy of thread processing, resulting in poor product quality consistency.

[0004] Meanwhile, traditional positioning fixtures have a relatively fixed structure and lack a flexible adjustment mechanism. The position and clamping range of the clamping mechanism are difficult to adapt to the shape and size of the button. For round buttons of different specifications and irregularly shaped buttons with slight curvature, special fixtures are often required to complete the processing. This not only limits the scope of application of the equipment, but also increases the time and cost of production changeover, fails to meet diverse processing needs, and reduces overall production efficiency. Utility Model Content

[0005] This invention provides a high-precision button tapping positioning fixture device to prevent eccentricity, which can solve the problem that existing button tapping positioning fixtures are mostly designed with single-sided or few positioning points, which cannot apply uniform clamping force and easily leads to tapping eccentricity and poor product quality consistency.

[0006] A high-precision button tapping positioning clamp device for preventing eccentricity includes a base, a support frame on the top of the base, and several clamping mechanisms arranged in a circular array around the support frame. Each clamping mechanism includes a movable slide, a limiting bracket, a movable clamping plate, and a touch switch. The bottom of the movable slide is slidably connected to the base, the limiting bracket is fixedly connected to the top of the movable slide, the movable clamping plate is slidably connected to the limiting bracket, and the touch switch is fixedly connected to the limiting bracket. The bottom of the base is provided with an adjustment mechanism for the position of the clamping mechanisms.

[0007] According to one embodiment of the present invention, the clamping mechanism further includes a guide rod, which is horizontally fixedly connected to the movable clamping plate, and the limiting bracket has a guide hole that is slidably connected to the guide rod.

[0008] According to one embodiment of the present invention, the clamping mechanism further includes a spring, which is wound around the outside of the guide rod. One end of the spring abuts against the movable clamping plate, and the other end of the spring abuts against the port of the guide hole.

[0009] According to one embodiment of the present invention, the clamping mechanism further includes a limiting ring, which is disposed at the end of the guide rod away from the movable clamping plate, and the outer diameter of the limiting ring is larger than the inner diameter of the guide hole.

[0010] According to one embodiment of the present invention, the outer side of the end of the guide rod away from the movable clamp is provided with an external thread, and the inner side of the limiting ring is provided with an internal thread that cooperates with the guide rod.

[0011] According to one embodiment of the present invention, the base is further provided with an indicator light and a controller. The indicator light includes a red light and a green light, and both the indicator light and the touch switch are electrically connected to the controller.

[0012] According to one embodiment of the present invention, the adjustment mechanism includes an electric push rod and a controller. The electric push rod is fixedly connected to the base, and the telescopic end of the electric push rod is fixedly connected to the movable slide. The electric push rod and the touch switch are both electrically connected to the controller.

[0013] According to one embodiment of the present invention, the top of the base is provided with four sets of clamping mechanisms. The adjusting mechanism includes a screw, which includes a first lead screw and a second lead screw. There are two second lead screws. Both the first and second lead screws are horizontally connected to the base for rotational engagement. The first lead screw is located below two sets of symmetrically arranged clamping mechanisms. The second lead screw is located below the corresponding clamping mechanisms in the other two sets. A driven bevel gear is fixedly provided at the end of the second lead screw near the first lead screw. A driving bevel gear that meshes with the driven bevel gear is fixedly provided on the side of the first lead screw. The movable slide is provided with a screw hole that mates with the screw.

[0014] According to one embodiment of the present invention, the adjustment mechanism includes a motor and a controller. The motor is fixedly connected to the base, and the output end of the motor is fixedly connected to the first lead screw on the same axis. The motor and the touch switch are both electrically connected to the controller.

[0015] According to one embodiment of the present invention, the sliding direction of the movable carriage is away from or towards the support frame, and the sliding direction of the movable clamp is away from or towards the touch switch.

[0016] The advantages of this utility model compared to the prior art are: 1. The clamping mechanism arranged in a ring array can clamp the button from multiple evenly distributed directions, making the clamping force on the button balanced and symmetrical. Combined with the central positioning function of the support frame, it completely solves the eccentricity problem caused by the single force on one side or the single positioning point of traditional clamps, greatly improves the coaxiality of button tapping and the thread processing accuracy, and ensures the consistency of product quality.

[0017] 2. The adjustment mechanism at the bottom of the base can flexibly adjust the overall position of the clamping mechanism. The sliding cooperation between the movable clamping plate and the limiting bracket can also adapt to buttons of different shapes and sizes. Whether it is a regular round button or a slightly curved irregular button, it can achieve stable clamping without frequent changes of clamps. This broadens the applicability of the equipment, reduces production changeover costs, and meets diverse processing needs.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a three-dimensional structural diagram of a high-precision button tapping positioning fixture device that prevents eccentricity.

[0020] Figure 2 This is a three-dimensional structural diagram of the base in this utility model.

[0021] Figure 3 This is a three-dimensional structural cross-sectional view of the adjustment mechanism in this utility model.

[0022] Figure 4 This is a three-dimensional structural diagram of the clamping mechanism in this utility model.

[0023] The reference numerals in the figures include: 1. Base; 2. Support frame; 3. Clamping mechanism; 4. Movable slide; 5. Limit bracket; 6. Movable clamping plate; 7. Touch switch; 8. Adjustment mechanism; 9. Guide rod; 10. Spring; 11. Limit ring; 12. First lead screw; 13. Second lead screw; 14. Driven bevel gear; 15. Driving bevel gear. Detailed Implementation

[0024] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0025] like Figures 1 to 4 As shown, a high-precision button tapping positioning fixture device for preventing eccentricity includes a base 1, a support frame 2 on the top of the base 1, and several clamping mechanisms 3 arranged in a circular array around the support frame 2. Each clamping mechanism 3 includes a movable slide 4, a limiting bracket 5, a movable clamping plate 6, and a touch switch 7. The bottom of the movable slide 4 is slidably connected to the base 1, the limiting bracket 5 is fixedly connected to the top of the movable slide 4, the movable clamping plate 6 is slidably connected to the limiting bracket 5, and the touch switch 7 is fixedly connected to the limiting bracket 5. The bottom of the base 1 is provided with an adjustment mechanism 8 for the position of the clamping mechanism 3.

[0026] In use, first place the button to be tapped on the support frame 2. Then, through the adjustment mechanism 8 at the bottom of the base 1, adjust the overall position of several clamping mechanisms 3 arranged in a circular array according to the size and specifications of the button to be processed. This makes each clamping mechanism 3 form a clamping space around the support frame 2 that is compatible with the outer diameter of the button. When the movable clamping plate 6 is completely attached to the button and reaches the preset clamping force, the touch switch 7 on the limit bracket 5 will be triggered, thereby stopping the movement of the movable slide 4 and completing the clamping action.

[0027] During the tapping process, the clamping mechanism 3 of the ring array applies uniform clamping force to the button from multiple directions. Combined with the center limiting function of the support frame 2, it effectively restricts the radial displacement and circumferential rotation of the button, ensuring that the axis of the tapping tool and the central axis of the button remain coaxial, thereby avoiding the problem of eccentricity.

[0028] The clamping mechanism 3, arranged in a ring array, can clamp the button from multiple evenly distributed directions, making the clamping force on the button balanced and symmetrical. Combined with the central positioning function of the support frame 2, it completely solves the eccentricity problem caused by the single force on one side or the single positioning point of the traditional clamp, greatly improves the coaxiality of button tapping and the thread processing accuracy, and ensures the consistency of product quality.

[0029] Meanwhile, the adjustment mechanism 8 at the bottom of the base 1 can flexibly adjust the overall position of the clamping mechanism 3, and the sliding cooperation between the movable clamping plate 6 and the limiting bracket 5 can also adapt to buttons of different shapes and sizes. Whether it is a regular round button or a slightly curved irregular button, it can achieve stable clamping without frequent changes of clamps, thus broadening the applicability of the equipment, reducing production changeover costs, and meeting diverse processing needs.

[0030] According to one embodiment of this utility model, the clamping mechanism 3 further includes a guide rod 9, which is horizontally fixedly connected to the movable clamping plate 6. The limiting bracket 5 has a guide hole that is slidably connected to the guide rod 9. When the movable clamping plate 6 approaches or moves away from the button, the guide rod 9 slides axially along the guide hole, providing precise guidance for the movement of the movable clamping plate 6 and ensuring that it always fits the button surface in a preset direction. The cooperation between the guide rod 9 and the guide hole restricts the offset of the movable clamping plate 6, avoiding clamping plate tilting due to uneven force during clamping, and further improving clamping stability; at the same time, the sliding fit structure reduces mechanical wear and extends the service life of the components.

[0031] According to one embodiment of this utility model, the clamping mechanism 3 further includes a spring 10, which is wound around the outside of the guide rod 9. One end of the spring 10 abuts against the movable clamping plate 6, and the other end of the spring 10 abuts against the port of the guide hole. When the movable clamping plate 6 contacts the button, the spring 10 is compressed, generating a reverse elastic force, causing the movable clamping plate 6 to flexibly adhere to the button, avoiding damage to the button caused by rigid clamping. When there are slight differences in button size, the extension and contraction of the spring 10 can adaptively compensate, ensuring uniform clamping force. The buffering effect of the spring 10 achieves flexible clamping, protecting the button surface from damage, while adapting to similar buttons with slight size deviations, improving clamping compatibility. The continuous action of the elastic force ensures the stability of clamping and reduces the risk of loosening during the tapping process.

[0032] According to one embodiment of this utility model, the clamping mechanism 3 further includes a limiting ring 11. The limiting ring 11 is disposed at the end of the guide rod 9 away from the movable clamping plate 6, and the outer diameter of the limiting ring 11 is larger than the inner diameter of the guide hole. When the movable clamping plate 6 slides away from the button, the limiting ring 11 abuts against the guide hole port, preventing the guide rod 9 from disengaging from the guide hole and limiting the maximum sliding stroke of the movable clamping plate 6. The limiting ring 11 effectively prevents the movable clamping plate 6 from separating from the limiting bracket 5, avoiding equipment failure caused by component detachment, and improving the safety and reliability of the mechanism.

[0033] According to one embodiment of this utility model, the outer side of the guide rod 9 away from the movable clamping plate 6 is provided with an external thread, and the inner side of the limiting ring 11 is provided with an internal thread that mates with the guide rod 9. Rotating the limiting ring 11 adjusts its position on the guide rod 9, thereby changing the maximum sliding stroke of the movable clamping plate 6 to accommodate the clamping stroke requirements of buttons of different thicknesses or hardnesses. The adjustability of the threaded connection allows the position of the limiting ring 11 to be flexibly adjusted to meet the clamping stroke requirements of buttons of different specifications, enhancing the adaptability of the equipment; the threaded structure connection is stable, ensuring that the limiting ring 11 will not loosen during processing, guaranteeing the accuracy of the stroke limitation.

[0034] According to one embodiment of this utility model, the base 1 is further provided with an indicator light and a controller. The indicator light includes a red light and a green light, and both the indicator light and the touch switch 7 are electrically connected to the controller. When the movable clamping plate 6 does not reach the preset clamping force, the touch switch 7 is not triggered, and the controller controls the red light to illuminate. When the clamping is in place and the touch switch 7 is triggered, the controller switches to the green light, indicating to the operator that tapping can begin. The intuitive feedback of the clamping status through light reduces human judgment errors and improves operational convenience; it avoids processing defects caused by inadequate clamping, ensures production quality, and reduces the risk of misoperation.

[0035] According to one embodiment of this utility model, the adjustment mechanism 8 includes an electric push rod and a controller. The electric push rod is fixedly connected to the base 1, and the telescopic end of the electric push rod is fixedly connected to the movable slide 4. Both the electric push rod and the touch switch 7 are electrically connected to the controller. When the clamping is in place, the electric push rod stops telescopically, completing the automatic positioning of the movable slide 4. During adjustment, the controller drives the electric push rod to telescopically, causing the movable slide 4 to move synchronously. The electric push rod realizes the automatic adjustment of the position of the clamping mechanism 3, replacing manual operation and improving adjustment efficiency and accuracy. The linkage with the touch switch 7 realizes the automatic stop of the clamping process, reducing manual intervention and adapting to mass production scenarios.

[0036] According to one embodiment of the present invention, the top of the base 1 is provided with four sets of clamping mechanisms 3, and the top of the base 1 is provided with four cross-shaped sliding grooves. The movable slide 4 is slidably disposed in the sliding grooves. The adjusting mechanism 8 includes a screw. The movable slide 4 is provided with a screw hole that cooperates with the screw. The screw includes a first lead screw 12 and a second lead screw 13. There are two second lead screws 13. The first lead screw 12 and the second lead screw 13 are both horizontally connected to the base 1 and are respectively located below the corresponding sliding grooves. The first lead screw 12 is located below the two sets of clamping mechanisms 3 arranged symmetrically. The second lead screw 13 is located below the corresponding clamping mechanisms 3 in the other two sets. A driven bevel gear 14 is fixedly disposed at the end of the second lead screw 13 near the first lead screw 12. A driving bevel gear 15 that meshes with the driven bevel gear 14 is fixedly disposed on the side of the first lead screw 12. Of the four clamping mechanisms 3, two symmetrical mechanisms are driven by a first lead screw 12, and the other two are driven by two second lead screws 13 respectively. The driving bevel gear 15 on the side of the first lead screw 12 meshes with the driven bevel gear 14 at the end of the second lead screw 13. When the first lead screw 12 is rotated, the second lead screw 13 is synchronously driven to rotate through the bevel gear transmission, realizing the coordinated displacement of the four mechanisms. The high precision of the screw transmission ensures that the four clamping mechanisms 3 are adjusted synchronously, guaranteeing the symmetry of the ring array and avoiding eccentricity caused by uneven adjustment. The mechanical transmission structure is stable, suitable for high-frequency use, and improves the durability of the equipment.

[0037] According to one embodiment of this utility model, the adjusting mechanism 8 includes a motor and a controller. The motor is fixedly connected to the base 1, and the output end of the motor is coaxially fixedly connected to the first lead screw 12. Both the motor and the touch switch 7 are electrically connected to the controller. The controller controls the motor to operate, driving the first lead screw 12 to rotate, which in turn drives the clamping mechanism 3 to move. When the touch switch 7 is triggered, the controller commands the motor to stop, completing the automatic adjustment. The motor drive automates the adjustment process, reducing manual labor intensity, and the adjustment speed and accuracy are controllable. The linkage with the controller makes the clamping process more seamless, adapting to automated production lines and improving overall production efficiency.

[0038] According to one embodiment of the present invention, the sliding direction of the movable slide 4 is away from or close to the support frame 2, thereby adjusting the distance between the clamping mechanism 3 and the button; the sliding direction of the movable clamping plate 6 is away from or close to the touch switch 7, ensuring that it only radially contacts the button when clamping, thus avoiding button offset caused by lateral force.

[0039] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A high-precision button tapping positioning fixture device for preventing eccentricity, characterized in that, The system includes a base (1), a support frame (2) on the top of the base (1), and several clamping mechanisms (3) arranged in a circular array around the support frame (2). The clamping mechanism (3) includes a movable slide (4), a limiting bracket (5), a movable clamping plate (6), and a touch switch (7). The bottom of the movable slide (4) is slidably connected to the base (1), the limiting bracket (5) is fixedly connected to the top of the movable slide (4), the movable clamping plate (6) is slidably connected to the limiting bracket (5), and the touch switch (7) is fixedly connected to the limiting bracket (5). The bottom of the base (1) is provided with an adjustment mechanism (8) for the position of the clamping mechanism (3).

2. The high-precision button tapping positioning fixture device for preventing eccentricity as described in claim 1, characterized in that, The clamping mechanism (3) also includes a guide rod (9), which is horizontally connected to the movable clamping plate (6). The limiting bracket (5) has a guide hole that is slidably connected to the guide rod (9).

3. The high-precision button tapping positioning fixture device for preventing eccentricity as described in claim 2, characterized in that, The clamping mechanism (3) also includes a spring (10), which is wound around the outside of the guide rod (9). One end of the spring (10) abuts against the movable clamping plate (6), and the other end of the spring (10) abuts against the port of the guide hole.

4. The high-precision button tapping positioning fixture device for preventing eccentricity as described in claim 2, characterized in that, The clamping mechanism (3) further includes a limiting ring (11), which is located at the end of the guide rod (9) away from the movable clamping plate (6), and the outer diameter of the limiting ring (11) is larger than the inner diameter of the guide hole.

5. The high-precision button tapping positioning fixture device for preventing eccentricity as described in claim 4, characterized in that, The guide rod (9) has an external thread on the outer side of the end away from the movable clamp (6), and the limiting ring (11) has an internal thread that matches the guide rod (9) on the inner side.

6. The high-precision button tapping positioning fixture device for preventing eccentricity as described in claim 1, characterized in that, The base (1) is also provided with an indicator light and a controller. The indicator light includes a red light and a green light. The indicator light and the touch switch (7) are both electrically connected to the controller.

7. The high-precision button tapping positioning fixture device for preventing eccentricity as described in claim 1, characterized in that, The adjustment mechanism (8) includes an electric push rod and a controller. The electric push rod is fixedly connected to the base (1). The telescopic end of the electric push rod is fixedly connected to the movable slide (4). The electric push rod and the touch switch (7) are both electrically connected to the controller.

8. The high-precision button tapping positioning fixture device for preventing eccentricity as described in claim 1, characterized in that, The base (1) is provided with four sets of clamping mechanisms (3) on its top. The adjustment mechanism (8) includes a screw, which includes a first lead screw (12) and a second lead screw (13). There are two second lead screws (13). The first lead screw (12) and the second lead screw (13) are both horizontal and rotatably connected to the base (1). The first lead screw (12) is located below the two sets of clamping mechanisms (3) arranged symmetrically. The second lead screw (13) is located below the corresponding clamping mechanisms (3) in the other two sets. A driven bevel gear (14) is fixedly provided at one end of the second lead screw (13) near the first lead screw (12). An active bevel gear (15) that meshes with the driven bevel gear (14) is fixedly provided on the side of the first lead screw (12). The movable slide (4) is provided with a screw hole that mates with the screw.

9. A high-precision button tapping positioning fixture device for preventing eccentricity as described in claim 8, characterized in that, The adjustment mechanism (8) includes a motor and a controller. The motor is fixedly connected to the base (1). The output end of the motor is coaxially fixedly connected to the first lead screw (12). The motor and the touch switch (7) are both electrically connected to the controller.

10. The high-precision button tapping positioning fixture device for preventing eccentricity as described in claim 1, characterized in that, The sliding direction of the movable slide (4) is away from or close to the support frame (2), and the sliding direction of the movable clamp (6) is away from or close to the touch switch (7).

Images