Mechanism for preventing center from falling off of screw tap measuring device

By designing a top-tip anti-fall mechanism in the tap measurement device, the combination of the rotating block and torsion spring solves the problem of deflection and fall off of the top-tip during vertical use, achieving higher stability and safety, ensuring measurement Accuracy.

CN222353101UActive Publication Date: 2025-01-14CHENGDU YINPU TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202421273648.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-05
Publication Date
2025-01-14
Estimated Expiration
2034-06-05

AI Technical Summary

Technical Problem

When the tap measuring device is used vertically on the top tip, it is prone to deflection and fall off due to unstable installation, which affects the measurement accuracy and safety.

Method used

An anti-top-point shedding mechanism is designed, including a top-point seat, a top-point, a base, a rotating block and a torsion spring. By setting up an anti-falling component to perform limit fit around the top-point perimeter, the torsion spring provides the return driving force of the rotating block to prevent the The top tip is deflected and fall off, and automatically resets when deflection occurs through the cooperation of the rotating block and the torsion spring.

Benefits of technology

It effectively improves the stability of the top tip when used vertically, prevents falling off, ensures measurement accuracy and safety, and does not affect the normal installation and work of the top tip.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a tip drop prevention mechanism of a screw tap measuring device, which comprises a tip seat, a tip mounted on the tip seat and at least two groups of drop prevention components arranged on the periphery of the tip, each drop prevention component comprises a base and a rotating block rotatably arranged on the base, one end of each rotating block is connected with the base through a torsion spring, and the other end of each rotating block is connected with the corresponding torsion spring. The length direction of the rotating block is perpendicular to the axial direction of the tip, and the other end of the rotating block is close to the circumferential face of the tip. And the at least two groups of anti-falling components are in limiting fit with the tip from the side of the tip to prevent the tip from deflecting. According to the utility model, the tip is limited by arranging the anti-falling component, the torsional spring is used for providing a return driving force for the rotatable rotating block, when the tip deflects, the tip is in contact with the rotating block to drive the rotating block to turn over, and the rotating block cannot continue to turn over under the elastic action of the torsional spring, so that the tip is prevented from falling off; the torsion spring can restore deformation under the action of deformation elastic force to generate torsion, and finally the rotating block is driven to automatically reset.
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Description

Technical Field

[0001] The utility model relates to the technical field of tap production detection, in particular to a tip-fall-off prevention mechanism for a tap measuring device. Background Art

[0002] Taps are used to process internal threads. During the design and production of taps, various parameters and dimensions of the taps play an important role in affecting the cutting strength of the taps. The tap measuring device is used to measure the parameter dimensions of the taps. Usually, the taps are fixed by tightening the two ends of the tap with a top, and then the taps are measured with a laser measuring instrument.

[0003] In the process of measuring various parameter dimensions of taps, some parameter dimensions require the tap to be upright, so the two tips are used vertically. At this time, the top tip may be unstable due to its detachable and rotatable installation characteristics. At this time, the top tip is prone to deflection, which will cause the degree of deflection to become larger and larger under the condition of force and rotation, and eventually fall off. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a tip-fall-preventing mechanism of a tap measuring device which can improve the stability of the tip when the tip is used vertically.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a tap measuring device anti-point drop-off mechanism includes a point seat and a point installed on the point seat, and also includes at least two groups of anti-drop-off components arranged around the point, the anti-drop-off components include a base and a rotating block rotatably arranged on the base, one end of the rotating block is connected to the base through a torsion spring, the length direction of the rotating block is perpendicular to the axial direction of the point, and the other end of the rotating block is close to the circumferential surface of the point; at least two groups of anti-drop-off components form a limit fit with the point from the side of the point to prevent the point from falling off. The utility model limits the top by arranging an anti-falling component, and uses a torsion spring to provide a driving force for the rotatable rotating block to return to its original position. The rotating block is located on the deflected path of the top. When the top is deflected, it will contact the rotating block and drive the rotating block to flip over. The flipping of the rotating block will cause the torsion spring to twist and generate a deformation elastic force. The rotating block cannot continue to flip due to the elastic force of the torsion spring, thus preventing the top from falling off. After the top is reset, the torsion spring can restore its deformation and twist under the action of the deformation elastic force, thereby driving the rotating block to automatically reset.

[0006] As an improvement of the above scheme: the number of the anti-dropping components is two, and the two anti-dropping components are symmetrically arranged with the center axis of the top as the reference. The utility model adopts two sets of anti-dropping components to form a limit fit with the top from both sides of the top, which can prevent the top from deflecting in different deflection directions of the top, and at the same time will not affect the disassembly and operation of the top due to too many anti-dropping components.

[0007] As an improvement of the above scheme: the end face of the rotating block close to the top is an arc surface, and the curvature of the arc surface is adapted to the curvature of the circumferential surface of the top. The utility model sets the end face of the rotating block close to the top as an arc surface, which can form a better fit with the circumferential surface of the top when in contact with the top, and at the same time, the arc surface of the rotating block can avoid collision with the top when installing the top and the top is working normally, preventing collision and interference between the rotating block and the top.

[0008] As an improvement of the above solution: the rotating block is rotatably matched with the base through the ball bearing. The utility model adopts the ball bearing as a relay component for the rotating block to realize rotation, which can enable the rotating block to realize multi-directional rotation and adapt to the multi-angle deflection of the top.

[0009] As an improvement of the above scheme: an adjusting screw is installed on the base, the adjusting screw is threadedly connected to the base, and the end of the adjusting screw and the peripheral surface of the end where the rotating block is connected to the base are provided with a limit groove, and the ball can be rotatably arranged between the two limit grooves. The utility model realizes the installation of the ball by cooperating with the adjusting screw and the rotating block, which is convenient for disassembling and assembling the ball and can adjust the clamping degree of the rotating block by adjusting the adjusting screw, so that the rotation range of the rotating block can be adjusted to make it have better adaptability.

[0010] As an improvement of the above scheme: a rotating shaft is provided inside one end of the rotating block connected to the base, and tapered holes are provided at both ends of the rotating shaft, which are limit grooves matched with the ball bearings. The utility model forms an interference fit relationship between the rotating shaft and the rotating block, so that the rotating block can rotate around the ball bearings through the rotating shaft, and can achieve more flexible rotation.

[0011] As an improvement of the above scheme: the base is a "J"-shaped structure composed of a middle arch and connecting parts on both sides, the connecting part of the base is detachably connected to the top seat by screws, the two sides of the arch of the base are respectively threaded with two adjusting screws, and the end of the rotating block extends into the arch of the base. By limiting the structure of the base, the rotating block can be restricted by the base after flipping a certain angle, and the rotating block is limited by the base, thereby preventing the top from falling off; after the top is reset, the torsion spring recovers its deformation and twists under the action of elastic force, thereby driving the rotating block to automatically reset.

[0012] As an improvement of the above scheme: the torsion spring is coaxially arranged with the adjusting screw, the torsion spring is sleeved on the end of the adjusting screw, and the ball is located inside the torsion spring. The utility model can effectively save the space occupied by the above components by adjusting the relative positions of the torsion spring, the adjusting screw and the ball, and also facilitates the assembly of the above components.

[0013] The beneficial effects of the utility model are as follows: the utility model limits the top point by arranging an anti-falling component, and uses a torsion spring to provide a driving force for the rotatable rotating block to return to its original position. The rotating block is located on the deflected path of the top point. When the top point is deflected, it will contact the rotating block and drive the rotating block to flip over. The flipping of the rotating block will cause the torsion spring to twist and generate a deformation elastic force. The rotating block cannot continue to flip due to the elastic force of the torsion spring, thus preventing the top point from falling off. After the top point is reset, the torsion spring can restore its deformation and twist under the action of the deformation elastic force, thus driving the rotating block to automatically reset. At the same time, in the utility model, the rotating block will not contact the top point when the top point is in a vertical state, thereby not affecting the normal installation of the top point and the tightening effect on the tap. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the structural axonometric drawing of the utility model;

[0015] Figure 2 It is a structural side view of the utility model;

[0016] Figure 3 for Figure 2 Cross-sectional view at AA in the middle.

[0017] Marked in the figure: 100-top seat, 200-top, 310-base, 320-rotating block, 330-torsion spring, 340-ball, 350-adjusting screw. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0019] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "front", "rear", "left", "right", "up", "down", and "inside" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of description. They do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0020] like Figures 1 to 3As shown, the anti-drop mechanism of the tap measuring device disclosed in the utility model includes a tap seat 100, a tap 200 and an anti-drop assembly. The tap seat 100 is used to install the tap 200, and the tap 200 and the tap seat 100 are detachably connected. Since the tap 200 may be deflected due to force problems when used in a vertical state, it is easy to fall off from the tap seat 100 if it deflects too much. The utility model sets an anti-drop assembly around the tap 200, and the anti-drop assembly forms a limit fit with the tap 200 on the deflected path of the tap 200, so as to block the tap 200 to prevent the tap 200 from falling off.

[0021] Specifically, Figures 1 to 3 As shown, the anti-drop assembly used in the utility model includes a base 310, a rotating block 320 and a torsion spring 330. The base 310 is the basic component of the anti-drop assembly, and the base 310 is fixed on the top seat 100. The rotating block 320 is installed on the base 310, and the rotating block 320 is installed on the base 310 in a rotatable matching manner. One end of the rotating block 320 is connected to the base 310 through the torsion spring 330. The length direction of the rotating block 320 is perpendicular to the axial direction of the top 200, and the other end extends toward the top 200 and is close to the circumferential surface of the top 200; when the top 200 is in a vertical state without deflection, the rotating block 320 does not contact the top 200, and there is a gap between the end of the rotating block 320 and the top 200. The two ends of the torsion spring 330 are fixedly connected to the base 310 and the rotating block 320 respectively. When the rotating block 320 is in an unstressed state, the torsion spring 300 is also in an unstressed relaxed state. The rotating block 320 is on the deflected path of the top 200. When the top 200 is deflected due to force, the rotating block 320 blocks and limits the top 200. The top 200 contacts the rotating block 320 and applies force to the rotating block 320 to drive the rotating block 320 to rotate. During the rotation of the rotating block 320, the torsion spring 330 is twisted, and the torsion spring 330 is elastically deformed to generate torque. When the rotating block 320 rotates to a certain extent, it will be blocked by the base 310 and will not continue to rotate, thereby preventing the top 200 from falling off due to excessive deflection. After the top 200 is reset, the torsion spring 330 recovers its deformation under the action of the torque and automatically resets.

[0022] The utility model does not limit the number of anti-falling components, the number of anti-falling components is at least two groups, and it is preferred to set two groups of anti-falling components. Figures 1 to 3 As shown, the two sets of anti-dropping components are symmetrically arranged with the central axis of the top 200 as the reference. The two sets of anti-dropping components can form a limiting effect on the top 200 from both sides of the top 200 to prevent deflection, and can cover most of the deflection angles of the top 200, while not affecting the normal installation of the fixed top 200 and the tightening work of the top 200 on the tap.

[0023] Furthermore, in order to prevent the rotating block 320 from interfering with the top 200 when the top 200 is in a normal state, the utility model sets the end face of the rotating block 320 close to the top 200 as an arc surface, and the arc surface is an inner concave arc surface, and the curvature of the arc surface is adapted to the curvature of the circumferential surface of the top 200. When the top 200 is installed on the top seat 100, the rotating block 320 can be flipped downward to avoid the top 200, and the arc surface at the end of the rotating block 320 will not collide with or interfere with the top 200 because of the inner concave arc surface; when the top 200 is installed in place, the rotating block 320 is automatically flipped upward and reset by the torsion of the torsion spring 330. During the automatic reset process of the rotating block 320, the arc surface at the end of the rotating block 320 is adapted to the circumferential surface of the top 200, and its inner concave arc surface can avoid the top 200 and avoid collision and interference with the top 200.

[0024] In the present invention, the rotating block 320 and the base 310 are rotatably matched by providing the ball 340 and the rotating shaft. Figure 3 As shown, an adjusting screw 350 is installed on the base 310, a threaded through hole with an internal thread is provided on the base 310, and the adjusting screw 350 is threadedly connected to the base 310. A rotating shaft is installed on one end of the rotating block 320 connected to the base 310, and the rotating shaft and the rotating block 320 are interference fit. 90° tapered holes are provided at both ends of the rotating shaft, and a 90° tapered hole is also provided on the end of the adjusting screw 350 extending from the threaded through hole. The tapered holes on the rotating shaft and the adjusting screw 350 serve as limiting grooves that match the ball 340, and the ball 340 is provided between the tapered holes of the above two seat limiting grooves. The provision of the rotating shaft enables the rotating block 320 to rotate around the ball 340 through the rotating shaft, making the rotation of the rotating block 320 more flexible. On the other hand, the extension length of the adjusting screw 350 can be adjusted by rotating the adjusting screw 350, and then the size of the clamping force applied by the adjusting screw 350 on the ball 340 can be adjusted, and finally the rotation flexibility of the rotating block 320 can be adjusted; when the adjusting screw 350 is tightened, the clamping force applied by the adjusting screw 350 to the ball 340 increases, and the friction force of the ball 340 during rotation increases, which makes it more difficult to rotate the ball 340 and reduces the rotation flexibility of the rotating block 320; when the adjusting screw 350 is loosened, the clamping force applied by the adjusting screw 350 to the ball 340 decreases, and the friction force of the ball 340 during rotation decreases, which makes it less difficult to rotate the ball 340 and increases the rotation flexibility of the rotating block 320.

[0025] Specifically, Figure 1As shown, in the utility model, the base 310 is set as a "J"-shaped structure, and the base 310 is formed by the arch in the middle and the connecting parts on both sides connected in one piece. The connecting parts on both sides of the base 310 are detachably connected with the top seat 100 by screws to facilitate the disassembly and assembly of the base 310. The arch in the middle of the base 310 leaves enough space for the rotation of the rotating block 320, and the end of the rotating block 320 extends into the arch of the base 310. At the same time, the arch of the base 310 can also play a further limiting role in the rotation of the rotating block 320. In the case where the top 200 is subjected to excessive force, the rotating block 320 can be prevented from excessively rotating due to the excessive force of the top 200. After the rotating block 320 is turned up to a certain angle, it will be limited by the arch in the middle of the base 310, and cannot continue to rotate under the limiting effect of the arch, thereby further preventing the top 200 from falling off.

[0026] Further, such as Figure 3 As shown, in the present invention, the torsion spring 330 and the adjusting screw 350 are coaxially arranged, the torsion spring 330 is sleeved on the end of the adjusting screw 350, and the ball 340 is located inside the torsion spring 330. The space occupied by the torsion spring 330, the ball 340 and the adjusting screw 350 can be effectively saved, and the assembly of the torsion spring 330, the ball 340 and the adjusting screw 350 is also convenient.

Claims

1. A tap measuring device for preventing a tip from falling off, comprising a tip seat (100) and a tip (200) mounted on the tip seat (100), characterized in that: The invention also comprises at least two groups of anti-falling components arranged around the top (200), wherein the anti-falling components comprise a base (310) and a rotating block (320) rotatably arranged on the base (310), one end of the rotating block (320) being connected to the base (310) via a torsion spring (330), the length direction of the rotating block (320) being perpendicular to the axial direction of the top (200), and the other end of the rotating block (320) being close to the circumferential surface of the top (200); and the at least two groups of anti-falling components forming a limiting fit with the top (200) from the side of the top (200) to prevent the top (200) from falling off.

2. The tip-fall-prevention mechanism of the tap measuring device according to claim 1, characterized in that: The number of the anti-falling components is two groups, and the two groups of anti-falling components are symmetrically arranged with the central axis of the top (200) as a reference.

3. The tip-fall-prevention mechanism of the tap measuring device according to claim 1, characterized in that: The end surface of the rotating block (320) close to one end of the top (200) is a curved surface, and the curvature of the curved surface matches the curvature of the circumferential surface of the top (200).

4. The tip-fall-prevention mechanism of the tap measuring device according to claim 1, characterized in that: The rotating block (320) is rotatably matched with the base (310) via the ball bearing (340).

5. The tip-fall-prevention mechanism of the tap measuring device according to claim 4, characterized in that: An adjusting screw (350) is mounted on the base (310), and the adjusting screw (350) is threadedly connected to the base (310). Limiting grooves are provided on the end of the adjusting screw (350) and the peripheral surface of the end where the rotating block (320) is connected to the base (310), and the ball (340) is rotatably arranged between the two limiting grooves.

6. The tip-fall-prevention mechanism of the tap measuring device according to claim 5, characterized in that: A rotating shaft is provided inside one end of the rotating block (320) connected to the base (310), and tapered holes are provided at both ends of the rotating shaft, which are limit grooves that match the ball (340).

7. The tip-fall-prevention mechanism of the tap measuring device according to claim 5, characterized in that: The base (310) is a "J"-shaped structure composed of an arch in the middle and connecting parts on both sides that are integrally connected. The connecting part of the base (310) is detachably connected to the top seat (100) via screws. The two sides of the arch of the base (310) are respectively threadedly connected to two adjusting screws (350), and the end of the rotating block (320) extends into the arch of the base (310).

8. The tip-fall-prevention mechanism of the tap measuring device according to claim 7, characterized in that: The torsion spring (330) is coaxially arranged with the adjusting screw (350), the torsion spring (330) is sleeved on the end of the adjusting screw (350), and the ball (340) is located inside the torsion spring (330).