A thread accuracy detection positioning device

Abstract

The utility model discloses a kind of thread precision detection positioning device, belong to thread precision detection field, including detection component and positioning component, detection component includes mounting bracket, the upper end of mounting bracket is fixedly connected with mounting ring, the inside rotation of mounting ring is connected with carousel, the lower end of carousel is installed with thread precision measuring instrument, the upper end of carousel is fixedly connected with angle adjusting disc, the surface of angle adjusting disc is equidistant and is provided with several push grooves, the inside plug-in connection of push groove has push rod, the end of push rod is fixedly connected with transmission rod, the lower end of transmission rod is installed with transmission mechanism, positioning component includes the mounting disc of installation in the lower end of mounting bracket, the utility model is equipped with detection component cooperation positioning component, not only can be conveniently to the clamping positioning operation of different size workpieces, to enhance the versatility of positioning device, simultaneously, through above-mentioned structure mutual cooperation can also be to the continuous detection operation of thread precision, to be able to improve detection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of thread accuracy testing, specifically a thread accuracy testing and positioning device. Background Technology

[0002] Thread accuracy is a comprehensive indicator of thread quality, composed of thread tolerance zone and engagement length. Different thread accuracy grades determine the processing difficulty and cost of the thread. While meeting the requirements of the part, the lowest possible tolerance grade should be selected, while considering the feasibility of the processing technology and equipment. To facilitate thread accuracy inspection and ensure stability, a positioning device is needed. The "Thread Accuracy Inspection Machine" disclosed in application number "202322540711.5" represents an increasingly mature technology. Its "In this utility model, a crossbeam is set on the upper side of the chuck. When a large workpiece needs to be inspected by hand, the large workpiece can be placed on the crossbeam, keeping the workpiece at a horizontal angle. Then, after aligning the workpiece with the workpiece clamped on the chuck, the chuck can be rotated to perform thread inspection. During the inspection, the workpiece on the crossbeam..." The workpiece will move up and down with the crossbeam. However, this positioning device has the following drawbacks during use: While it can indeed position and inspect large workpieces using a chuck and crossbeam, the chuck structure can only position workpieces of fixed sizes, thus limiting its application. Therefore, it is necessary to provide a positioning device that can position workpieces of different sizes and enhance its versatility. Furthermore, this positioning device is not convenient for continuous thread accuracy inspection of workpieces, thus affecting inspection efficiency. Therefore, it is necessary to provide a positioning device that facilitates continuous inspection and improves inspection efficiency. Utility Model Content

[0003] The present invention provides a thread accuracy detection and positioning device, which aims to solve the problem that existing positioning devices are not convenient for continuous thread accuracy detection of workpieces of different sizes.

[0004] To achieve the above objectives, this utility model provides a thread accuracy detection and positioning device, including a detection component and a positioning component; The detection component includes a mounting frame, an upper end of which is fixedly connected to a mounting ring, a turntable rotatably connected inside the mounting ring, a thread accuracy measuring instrument mounted on the lower end of the turntable, an angle adjustment disc fixedly connected to the upper end of the turntable, a plurality of actuating grooves equally spaced on the surface of the angle adjustment disc, actuating rods inserted into the interior of the actuating grooves, a transmission rod fixedly connected to the end of the actuating rods, and a transmission mechanism mounted on the lower end of the transmission rods. A positioning assembly includes a mounting plate installed at the lower end of a mounting frame, a receiving plate installed at the upper end of the mounting plate, a plurality of guide grooves formed on the surface of the receiving plate, guide blocks slidably connected inside each of the guide grooves, an arc-shaped clamping plate fixedly connected to the upper end of each guide block, a triangular disk connected between the mounting plate and the receiving plate, a plurality of transmission arms rotatably connected to the upper end of the triangular disk, the ends of each of the transmission arms rotatably connected to the guide blocks, a stepper motor installed at the lower end of the triangular disk, and a workpiece body provided at the upper end of the receiving plate.

[0005] As a preferred embodiment of this utility model, the transmission mechanism includes a first bevel gear installed at the lower end of the transmission rod, a servo motor installed at the upper end of the mounting bracket, and a second bevel gear fixedly connected to the output end of the servo motor, wherein the second bevel gear and the first bevel gear are meshed together.

[0006] As a preferred embodiment of this utility model, a positioning ring is fixedly connected to the inner wall of the mounting ring, and an annular groove is formed on the side surface of the turntable, with the positioning ring rotatably connected inside the annular groove.

[0007] As a preferred embodiment of this utility model, the upper end of the mounting bracket is fixedly connected to a support, and the upper end of the first bevel gear is rotatably connected inside the support.

[0008] As a preferred embodiment of this utility model, the receiving plate has a circular groove inside, a bearing is installed inside the circular groove, and a rotating shaft is fixedly connected to the upper end of the triangular plate, the rotating shaft being rotatably connected inside the bearing.

[0009] As a preferred embodiment of this utility model, a guide rod is installed inside the guide groove, and a guide hole is opened on the surface of the guide block, with the guide rod inserted into the inside of the guide hole.

[0010] As a preferred embodiment of this utility model, the end of the guide groove is provided with a connecting screw hole, and the end of the guide rod is fixedly connected with a connecting bolt, which is threaded into the inside of the connecting screw hole.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. When performing thread accuracy testing on workpieces of different sizes, the workpieces of different sizes are first placed on the upper end of the receiving plate. Then, the stepper motor is started to rotate the triangular disk clockwise or counterclockwise, thereby pulling or supporting several transmission arms. This allows the guide block to move back and forth along the guide groove, and simultaneously controls several arc-shaped clamps to move closer or further apart, so as to clamp workpieces of different sizes. Compared with the positioning device in the existing "thread accuracy testing machine", this utility model, through the cooperation of the above structures, can facilitate the clamping and positioning of workpieces of different sizes, thereby enhancing the versatility of the positioning device. 2. When performing continuous thread accuracy testing on the workpiece body, the transmission mechanism is first started, causing the transmission rod and the actuating rod to rotate. This allows the actuating rod to sequentially enter several actuating slots on the surface of the angle adjustment disc, thereby controlling the angle adjustment disc to rotate 45° each time. Consequently, the thread accuracy measuring instrument is controlled to stop sequentially above different thread holes on the surface of the workpiece body at the upper end of the receiving disc. By rotating the threaded connection inside the thread hole, the thread accuracy can be measured. Compared with the positioning device in the existing "thread accuracy testing machine", this utility model, through the cooperation of the above structures, facilitates continuous thread accuracy testing of the thread hole, thereby improving the efficiency of thread accuracy testing. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the mounting frame structure of this utility model; Figure 3 This is a disassembled diagram of the detection component structure of this utility model; Figure 4 This is an anatomical diagram of the positioning component structure of this utility model; Figure 5 This is an anatomical diagram of the transmission arm structure of this utility model; Figure 6 This is a schematic diagram of the workpiece body structure of this utility model.

[0013] In the diagram: 100, Detection component; 101, Mounting bracket; 102, Mounting ring; 103, Turntable; 104, Thread accuracy measuring instrument; 105, Angle adjustment disc; 106, Actuating groove; 107, Actuating rod; 108, Transmission rod; 109, Transmission mechanism; 1091, First bevel gear; 1092, Servo motor; 1093, Second bevel gear; 111, Positioning ring; 112, Annular groove; 12 1. Bracket; 200. Positioning assembly; 201. Mounting plate; 202. Receiving plate; 203. Guide groove; 204. Guide block; 205. Arc-shaped clamp; 206. Triangular disc; 207. Transmission arm; 208. Stepper motor; 209. Workpiece body; 211. Circular groove; 212. Bearing; 213. Rotating shaft; 221. Connecting screw hole; 222. Connecting bolt; 231. Guide rod; 232. Guide hole. Detailed Implementation

[0014] 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.

[0015] Example 1 Please see Figures 1-6 This utility model provides a thread accuracy detection and positioning device, including a detection component 100 and a positioning component 200; The detection component 100 includes a mounting frame 101, a mounting ring 102 fixedly connected to the upper end of the mounting frame 101, a turntable 103 rotatably connected inside the mounting ring 102, a thread accuracy measuring instrument 104 mounted at the lower end of the turntable 103, an angle adjustment plate 105 fixedly connected to the upper end of the turntable 103, a plurality of actuating grooves 106 are equidistantly opened on the surface of the angle adjustment plate 105, an actuating rod 107 is inserted into the actuating groove 106, a transmission rod 108 is fixedly connected to the end of the actuating rod 107, and a transmission mechanism 109 is mounted at the lower end of the transmission rod 108. The positioning component 200 includes a mounting plate 201 mounted on the lower end of the mounting frame 101, a receiving plate 202 mounted on the upper end of the mounting plate 201, a plurality of guide grooves 203 formed on the surface of the receiving plate 202, guide blocks 204 slidably connected inside the plurality of guide grooves 203, an arc-shaped clamping plate 205 fixedly connected to the upper end of the guide blocks 204, a triangular disk 206 connected between the mounting plate 201 and the receiving plate 202, a plurality of transmission arms 207 rotatably connected to the upper end of the triangular disk 206, the ends of the plurality of transmission arms 207 rotatably connected to the guide blocks 204, a stepper motor 208 mounted on the lower end of the triangular disk 206, and a workpiece body 209 provided on the upper end of the receiving plate 202.

[0016] In one specific embodiment, the detection component 100, in conjunction with the positioning component 200, not only facilitates clamping and positioning operations for workpieces of different sizes, thereby enhancing the versatility of the positioning device, but also enables continuous detection of thread accuracy through the cooperation of the above structures, thus improving detection efficiency. In use, the workpiece body 209 of different sizes is first placed on the upper end of the receiving plate 202. Then, the stepper motor 208 is started, causing the triangular disk 206 and several transmission arms 207 on its side surface to rotate clockwise or counterclockwise, thereby controlling the guide block 204 to reciprocate along the guide groove 203. Then, the workpiece body 209 of different sizes can be clamped and positioned by several arc-shaped clamping plates 205. Then, the transmission mechanism 109 is started to drive the transmission rod 108 and the actuating rod 107 to rotate at a constant speed, so that the actuating rod 107 enters the interior of several actuating grooves 106 on the surface of the angle adjustment disk 105 in sequence, thereby controlling the angle adjustment disk 105 to rotate 45°, so that the thread accuracy measuring instrument 104 stops at the upper end of the thread hole at different positions on the upper end of the workpiece body 209. By starting the thread accuracy measuring instrument 104, the thread accuracy of the workpiece body 209 can be continuously detected, thereby improving the detection efficiency.

[0017] Please see Figure 2 and Figure 3 The transmission mechanism 109 includes a first bevel gear 1091 mounted on the lower end of the transmission rod 108, a servo motor 1092 mounted on the upper end of the mounting bracket 101, and a second bevel gear 1093 fixedly connected to the output end of the servo motor 1092. The second bevel gear 1093 and the first bevel gear 1091 are meshed together.

[0018] In one specific embodiment, the servo motor 1092 is started to rotate the second bevel gear 1093, which in turn rotates the first bevel gear 1091 and the transmission rod 108 at its upper end to adjust the angle of the angle adjustment disk 105.

[0019] Please see Figure 2 and Figure 3A positioning ring 111 is fixedly connected to the inner wall of the mounting ring 102, and an annular groove 112 is provided on the side surface of the turntable 103. The positioning ring 111 is rotatably connected inside the annular groove 112.

[0020] In one specific embodiment, the positioning ring 111 is rotatably connected inside the annular groove 112, which ensures stability when the turntable 103 rotates, thereby improving the smoothness of thread accuracy detection.

[0021] Please see Figure 2 and Figure 3 The upper end of the mounting bracket 101 is fixedly connected to the bracket 121, and the upper end of the first bevel gear 1091 is rotatably connected inside the bracket 121.

[0022] In one specific embodiment, the bracket 121 can improve the rotational connection stability of the first bevel gear 1091.

[0023] Please see Figures 4-6 The receiving plate 202 has a circular groove 211 inside, and a bearing 212 is installed inside the circular groove 211. The upper end of the triangular plate 206 is fixedly connected to a rotating shaft 213, which is rotatably connected inside the bearing 212.

[0024] In one specific embodiment, the circular groove 211 facilitates the installation of the bearing 212. When the triangular disk 206 rotates with the rotating shaft 213, the presence of the bearing 212 can improve the smoothness of the rotation of the triangular disk 206.

[0025] Please see Figures 4-6 A guide rod 231 is installed inside the guide groove 203, and a guide hole 232 is opened on the surface of the guide block 204. The guide rod 231 is inserted into the guide hole 232.

[0026] In one specific embodiment, when the guide block 204 moves along the guide groove 203, the guide rod 231 moves along the guide hole 232 to ensure the stability of the movement of the guide block 204.

[0027] Please see Figures 4-6 The end of the guide groove 203 is provided with a connecting screw hole 221, and the end of the guide rod 231 is fixedly connected with a connecting bolt 222, which is threaded into the inside of the connecting screw hole 221.

[0028] In one specific embodiment, the connecting bolt 222 is threaded into the connecting screw hole 221, thus enhancing the ease of disassembly and replacement of the guide rod 231.

[0029] Working principle: In use, workpieces 209 of different sizes are first placed on the upper end of the receiving plate 202. At this time, the stepper motor 208 is started, which drives the triangular disk 206 and several transmission arms 207 on its side surface to rotate clockwise or counterclockwise. This controls the guide block 204 to reciprocate along the guide groove 203, and then the workpieces 209 of different sizes can be clamped and positioned by several arc-shaped clamping plates 205. At the same time, the transmission mechanism 109 is started, which drives the transmission rod 108 and the actuating rod 107 to rotate at a constant speed. This controls the actuating rod 107 to enter several actuating grooves 106 on the surface of the angle adjustment disk 105 in sequence, thereby controlling the angle adjustment disk 105 to rotate 45°. At this time, the thread accuracy measuring instrument 104 stops at the upper end of the thread hole at different positions on the upper end of the workpiece 209. Finally, the thread accuracy measuring instrument 104 is started to continuously perform thread accuracy detection on the workpiece 209, thus improving the efficiency of thread accuracy detection.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] 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 thread accuracy detection and positioning device, characterized in that, include: The detection component (100) includes a mounting bracket (101), a mounting ring (102) is fixedly connected to the upper end of the mounting bracket (101), a turntable (103) is rotatably connected inside the mounting ring (102), a thread accuracy measuring instrument (104) is installed at the lower end of the turntable (103), an angle adjustment plate (105) is fixedly connected to the upper end of the turntable (103), a plurality of actuating grooves (106) are equidistantly opened on the surface of the angle adjustment plate (105), an actuating rod (107) is inserted into the actuating groove (106), a transmission rod (108) is fixedly connected to the end of the actuating rod (107), and a transmission mechanism (109) is installed at the lower end of the transmission rod (108). The positioning component (200) includes a mounting plate (201) installed at the lower end of the mounting frame (101), a receiving plate (202) installed at the upper end of the mounting plate (201), a plurality of guide grooves (203) opened on the surface of the receiving plate (202), a guide block (204) slidably connected inside the plurality of guide grooves (203), an arc-shaped clamp (205) fixedly connected at the upper end of the guide block (204), a triangular disk (206) connected between the mounting plate (201) and the receiving plate (202), a plurality of transmission arms (207) rotatably connected at the upper end of the triangular disk (206), the ends of the plurality of transmission arms (207) rotatably connected to the guide block (204), a stepper motor (208) installed at the lower end of the triangular disk (206), and a workpiece body (209) provided at the upper end of the receiving plate (202).

2. The positioning device according to claim 1, characterized in that: The transmission mechanism (109) includes a first bevel gear (1091) installed at the lower end of the transmission rod (108), a servo motor (1092) installed at the upper end of the mounting bracket (101), and a second bevel gear (1093) fixedly connected to the output end of the servo motor (1092). The second bevel gear (1093) and the first bevel gear (1091) are meshed together.

3. The positioning device according to claim 1, characterized in that: The inner wall of the mounting ring (102) is fixedly connected to a positioning ring (111), and the side surface of the turntable (103) is provided with an annular groove (112), and the positioning ring (111) is rotatably connected inside the annular groove (112).

4. The positioning device according to claim 2, characterized in that: The upper end of the mounting bracket (101) is fixedly connected to a bracket (121), and the upper end of the first bevel gear (1091) is rotatably connected inside the bracket (121).

5. The positioning device according to claim 1, characterized in that: The receiving plate (202) has a circular groove (211) inside, and a bearing (212) is installed inside the circular groove (211). The upper end of the triangular plate (206) is fixedly connected to a rotating shaft (213), and the rotating shaft (213) is rotatably connected inside the bearing (212).

6. The positioning device according to claim 1, characterized in that: A guide rod (231) is installed inside the guide groove (203), and a guide hole (232) is opened on the surface of the guide block (204). The guide rod (231) is inserted into the guide hole (232).

7. The positioning device according to claim 6, characterized in that: The end of the guide groove (203) is provided with a connecting screw hole (221), and the end of the guide rod (231) is fixedly connected with a connecting bolt (222), which is threaded into the inside of the connecting screw hole (221).

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