Jig for rapidly detecting external thread of product

Abstract

The utility model discloses a jig for rapidly detecting an external thread of a product. The jig comprises a base and a detection mechanism, a fixed seat and a support are fixed on the base, a pair of sliding rods are fixed between the fixed seat and the support, a moving part is arranged on the pair of sliding rods in a sliding manner, a lower clamping body is fixed on the moving part, and an upper clamping body is rotationally arranged on the lower clamping body; the detection mechanism is rotatably mounted on the fixing seat and comprises a shell, a detection sleeve is inserted into the shell, a pair of limiting grooves are formed in the shell, a pair of limiting strips are fixed to the detection sleeve and slide in the limiting grooves respectively, arc-shaped sliding grooves are formed in the positions, at the limiting grooves, of the shell, and the arc-shaped sliding grooves are matched with the arc-shaped sliding grooves. And arc sliding blocks are arranged in the pair of arc sliding grooves in a sliding mode, clamping grooves are formed in the pair of limiting strips, the pair of arc sliding blocks are clamped in the pair of clamping grooves respectively, and a control ring is arranged outside the shell in a sliding mode. According to the utility model, through the related structural design, the efficiency and accuracy of external thread detection can be effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of thread detection technology, specifically relating to a fixture for quickly detecting the external threads of a product. Background Technology

[0002] Metric external thread components are widely used in machinery, automotive, aerospace and other fields. They are characterized by simple manufacturing and easy mating. After production, threaded components need to be inspected to ensure that their external thread dimensions are up to standard. External thread inspection is not only a key step to ensure product quality and safety, but also an important means to improve production efficiency, reduce costs and meet industry standards.

[0003] Currently, external thread inspection is usually carried out manually by staff. Manual inspection is time-consuming, and staff become fatigued after prolonged inspections, which affects the pass rate and efficiency.

[0004] Therefore, in order to address the above-mentioned technical problems, it is necessary to provide a fixture for quickly inspecting the external threads of a product.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a fixture for quickly inspecting the external threads of a product, which can solve the problem of low efficiency in the existing manual inspection of external threads.

[0007] To achieve the above objectives, a specific embodiment of this utility model provides a fixture for rapid detection of external threads of a product, comprising: a base and a detection mechanism;

[0008] The base is fixed with a fixed seat and a support. A pair of sliding rods are fixed between the fixed seat and the support. A movable part is slidably arranged on the pair of sliding rods. A lower clamping body is fixed on the movable part. An upper clamping body is rotatably arranged on the lower clamping body. A handle is fixed on one side of the movable part.

[0009] The detection mechanism is rotatably mounted on a fixed base. The detection mechanism includes a housing, in which a detection sleeve is inserted. A pair of limiting grooves are chiseled on the housing, and a pair of limiting strips are fixed on the detection sleeve. The pair of limiting strips slide in the pair of limiting grooves respectively. Arc-shaped sliding grooves are chiseled on the housing at each of the pair of limiting grooves, and arc-shaped sliders are slidably arranged in each of the pair of arc-shaped sliding grooves. A retaining groove is chiseled on each of the pair of limiting strips, and the pair of arc-shaped sliders are respectively retaining in the pair of retaining grooves. A control ring is slidably arranged outside the housing, and one end of the arc-shaped slider outside the housing is fixedly connected to the control ring.

[0010] In one or more embodiments of this utility model, a pair of connecting rods are inserted into the upper clamping body, and two pairs of limiting grooves are inserted into the lower clamping body. The three pairs of limiting grooves are evenly arranged on the lower clamping body and the upper clamping body, thereby driving the clamping plate to clamp the external threaded part to be inspected.

[0011] In one or more embodiments of this utility model, a clamping plate is fixed at one end of a pair of connecting rods located between the lower clamping body and the upper clamping body, and a limiting head is fixed at the end of the pair of connecting rods away from the clamping plate. The clamping plate is used to clamp the external threaded part to be inspected, and the limiting head is used to limit the connecting rod to prevent it from detaching from the lower clamping body or the connecting rod.

[0012] In one or more embodiments of this utility model, a first spring is installed on the connecting rod between the clamping plate and the inner wall of the upper and lower clamping bodies. The elastic force of the first spring is used to clamp the clamping plate to the external threaded part, so that the clamping plate clamps the external threaded part to be tested, and clamps the external threaded part to be tested at the axial position of the lower and upper clamping bodies, so as to facilitate the alignment of the testing sleeve.

[0013] In one or more embodiments of this utility model, a first spring is rotatably provided on the upper clamping body, and a lock head is fixed at one end of the lock outside the upper clamping body. By rotating the lock, the lock head is locked onto the lower clamping body, thereby locking the lower clamping body and the upper clamping body together.

[0014] In one or more embodiments of this utility model, a locking groove is chiseled on the lower clamping body, and the lock is engaged in the locking groove. When the lower clamping body and the upper clamping body are together, the lock is rotated to rotate the lock into the locking groove, so that the lock head is engaged at the bottom end of the lower clamping body, thereby locking the lower clamping body and the upper clamping body together.

[0015] In one or more embodiments of this utility model, a drive shaft is fixed at the end of the housing away from the detection sleeve. The drive shaft is used to connect an external drive device to drive it to rotate, and the drive shaft drives the housing to rotate.

[0016] In one or more embodiments of this utility model, an annular groove is formed on the inner wall of the housing, and an annular ring is slidably disposed in the annular groove. The annular ring is used to push the detection sleeve out of the housing.

[0017] In one or more embodiments of this utility model, a second spring is installed between the ring and the inner wall of the ring groove. The elastic force of the second spring is used to push the ring towards the detection sleeve, and the ring pushes the detection sleeve out of the housing.

[0018] In one or more embodiments of this utility model, a third spring is installed between the arc-shaped slider and the inner wall of the arc-shaped groove. The elastic force of the third spring is used to push the arc-shaped slider in the opposite direction of the limiting strip, so that the arc-shaped slider is stuck in the groove.

[0019] Compared with existing technologies, this utility model can effectively improve the efficiency and accuracy of external thread detection through relevant structural design. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of a fixture for rapidly detecting the external threads of a product according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the lower clamp and upper clamp in one embodiment of the present invention;

[0023] Figure 3 This is a perspective cross-sectional view of the detection mechanism in one embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the detection mechanism in one embodiment of the present invention;

[0025] Figure 5 for Figure 4 The structural diagram shown at point A in the middle.

[0026] Explanation of key figure labels:

[0027] 1-Base, 101-Fixed seat, 102-Support, 103-Slide rod, 104-Moving part, 105-Lower clamp, 106-Upper clamp, 107-Connecting rod, 108-Limit head, 109-Clamping plate, 110-First spring, 111-Lock, 112-Lock head, 113-Lock groove, 114-Handle, 2-Detection mechanism, 201-Housing, 202-Drive shaft, 203-Detection sleeve, 204-Circular groove, 205-Circular ring, 206-Second spring, 207-Limit groove, 208-Limit strip, 209-Arc-shaped slide groove, 210-Arc-shaped slider, 211-Card slot, 212-Third spring, 213-Control ring. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0029] like Figures 1 to 5 As shown, a fixture for quickly detecting the external threads of a product according to one embodiment of the present invention includes: a base 1 and a detection mechanism 2.

[0030] like Figures 1 to 2 As shown, a fixed base 101 and a support 102 are fixed on the base 1. A pair of sliding rods 103 are fixed between the fixed base 101 and the support 102. A movable member 104 is slidably mounted on the pair of sliding rods 103. The movable member 104 is used to drive the threaded part to be tested to move along the trajectory of the sliding rods 103 towards the testing sleeve 203 for testing. A lower clamping body 105 is fixed on the movable member 104. An upper clamping body 106 is rotatably mounted on the lower clamping body 105. The lower clamping body 105 and the upper clamping body 106 are used to clamp the threaded part to be tested. A handle 114 is fixed on one side of the movable member 104. The handle 114 is used to push the movable member 104 to slide on the pair of sliding rods 103.

[0031] like Figures 1 to 2As shown, a pair of connecting rods 107 are inserted into the upper clamping body 106, and two pairs of limiting grooves 207 are inserted into the lower clamping body 105. The three pairs of limiting grooves 207 are evenly arranged on the lower clamping body 105 and the upper clamping body 106, driving the clamping plate 109 to clamp the external threaded part to be inspected. The clamping plate 109 is fixed to one end of the pair of connecting rods 107 located between the lower clamping body 105 and the upper clamping body 106, and the limiting head 108 is fixed to the other end of the pair of connecting rods 107 away from the clamping plate 109. The clamping plate 109 is used to clamp the external threaded part to be inspected, and the limiting head 108 is used to limit the connecting rods 107 to prevent them from detaching from the lower clamping body 105 or the connecting rods 107.

[0032] like Figures 1 to 2 As shown, a first spring 110 is installed on the connecting rod 107 between the clamping plate 109 and the inner walls of the upper clamping body 106 and the lower clamping body 105. The elastic force of the first spring 110 is used to clamp the clamping plate 109 to the external threaded part, so that the clamping plate 109 clamps the external threaded part to be tested, and clamps the external threaded part to be tested at the axial position of the lower clamping body 105 and the upper clamping body 106, so as to facilitate the alignment of the testing sleeve 203.

[0033] like Figures 3 to 5 As shown, a first spring 110 is rotatably mounted on the upper clamping body 106. A lock head 112 is fixed to one end of the lock 111 located outside the upper clamping body 106. By rotating the lock 111, the lock head 112 is engaged with the lower clamping body 105, thereby locking the lower clamping body 105 and the upper clamping body 106 together. A lock groove 113 is carved on the lower clamping body 105. The lock 111 is engaged in the lock groove 113. When the lower clamping body 105 and the upper clamping body 106 are together, rotating the lock 111 rotates the lock 111 into the lock groove 113, causing the lock head 112 to engage with the bottom end of the lower clamping body 105, thereby locking the lower clamping body 105 and the upper clamping body 106 together.

[0034] like Figures 3 to 5 As shown, the detection mechanism 2 is rotatably mounted on the fixed base 101. The detection mechanism 2 includes a housing 201, and a detection sleeve 203 is inserted inside the housing 201. A pair of limiting grooves 207 are cut on the housing 201, and a pair of limiting strips 208 are fixed on the detection sleeve 203. The pair of limiting strips 208 slide in the pair of limiting grooves 207 respectively. By sliding the pair of limiting strips 208 in the pair of limiting grooves 207 respectively, the detection sleeve 203 is rotated when the housing 201 rotates, so that the detection sleeve 203 can be rotated to detect the external threaded parts. The detection sleeve 203 can be replaced. A suitable detection sleeve 203 can be replaced for the external thread size that needs to be detected.

[0035] like Figures 3 to 5As shown, the housing 201 has arc-shaped grooves 209 carved at each of the pair of limiting grooves 207. Arc-shaped sliders 210 are slidably disposed within each of the arc-shaped grooves 209. Each of the pair of limiting bars 208 has a retaining groove 211 carved on it. The arc-shaped sliders 210 are respectively engaged in the retaining grooves 211. By engaging the arc-shaped sliders 210 in the retaining grooves 211, the detection sleeve 203 is secured within the housing 201. A control ring 213 is slidably disposed outside the housing 201. One end of the arc-shaped slider 210 located outside the housing 201 is fixedly connected to the control ring 213. Rotating the control ring 213 causes the arc-shaped slider 210 to slide within the arc-shaped grooves 209, thereby causing the arc-shaped slider 210 to move out of or engage in the retaining grooves 211.

[0036] like Figures 3 to 5 As shown, a drive shaft 202 is fixed to the end of the housing 201 away from the detection sleeve 203. The drive shaft 202 is used to connect an external drive device to drive it to rotate, and the drive shaft 202 drives the housing 201 to rotate. A circular groove 204 is carved on the inner wall of the housing 201, and a circular ring 205 is slidably disposed in the circular groove 204. The circular ring 205 is used to push the detection sleeve 203 outward from the housing 201.

[0037] like Figures 3 to 5 As shown, a second spring 206 is installed between the ring 205 and the inner wall of the ring groove 204. The elastic force of the second spring 206 is used to push the ring 205 towards the detection sleeve 203, and the ring 205 pushes the detection sleeve 203 outward from the housing 201. A third spring 212 is installed between the curved slider 210 and the inner wall of the arc-shaped groove 209. The elastic force of the third spring 212 is used to push the curved slider 210 in the opposite direction towards the limiting strip 208, so that the curved slider 210 is stuck in the slot 211.

[0038] Working principle: Before using this device, the drive shaft 202 needs to be connected to an external drive device to drive it to rotate. Specifically, when performing external thread inspection, first select the lock 111 from the lock groove 113, then open the upper clamp 106 from the lower clamp 105, then place the workpiece to be inspected on a pair of clamps 109 on the lower clamp 105, then close the upper clamp 106 and press it on the lower clamp 105, then rotate the lock 111 into the lock groove 113 and lock the lock head 112 at the bottom of the lower clamp 105, thereby clamping the workpiece to be inspected between the lower clamp 105 and the upper clamp 106.

[0039] Then, the drive device drives the transmission shaft 202 to rotate, which in turn drives the housing 201 and the detection sleeve 203 to rotate. The handle 114 pushes the moving part 104 to move towards the detection sleeve 203, which in turn moves the workpiece to be tested towards the detection sleeve 203. The external thread of the workpiece to be tested is screwed into the detection sleeve 203 to achieve thread testing. When the detection sleeve 203 rotates, if the external thread of the workpiece to be tested is successfully screwed into the detection sleeve 203 and matches the internal thread of the detection sleeve 203, it indicates that the thread is qualified. If it does not match, it cannot rotate smoothly, or there is abnormal resistance, thus the thread is judged to be unqualified.

[0040] When it is necessary to replace the detection sleeve 203, first rotate the control ring 213. The control ring 213 drives the arc slider 210 to move out of the slot 211. After it moves out, the elastic force of the second spring 206 pushes the ring 205 towards the detection sleeve 203. The ring 205 pushes the detection sleeve 203 out of the housing 201, so that the head of the detection sleeve 203 is removed from the housing 201. Then, the end of the detection sleeve 203 can be grasped and removed from the housing 201. Then, a detection sleeve 203 with a suitable internal thread size is taken out. Then, the control ring 213 is rotated again. 13. The control ring 213 drives the arc slider 210 to move away from the limiting groove 207 and compresses the third spring 212. Then, the limiting strip 208 is aligned with the limiting groove 207, and the detection sleeve 203 is inserted into the housing 201. Then the control ring 213 can be released. When the detection sleeve 203 is fully pushed into the housing 201, the arc slider 210 is just aligned with the slot 211. At this time, the elastic force of the third spring 212 pushes the arc slider 210 and pushes the arc slider 210 into the slot 211, thereby locking the detection sleeve 203 in the housing 201.

[0041] 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.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fixture for rapid inspection of external threads of a product, characterized in that, include: A base, on which a fixed seat and a support are fixedly mounted, and a pair of sliding rods are fixed between the fixed seat and the support. A movable part is slidably mounted on the pair of sliding rods, and a lower clamping body is fixedly mounted on the movable part. An upper clamping body is rotatably mounted on the lower clamping body, and a handle is fixedly mounted on one side of the movable part. The detection mechanism is rotatably mounted on a fixed base. The detection mechanism includes a housing, in which a detection sleeve is inserted. A pair of limiting grooves are chiseled on the housing, and a pair of limiting strips are fixed on the detection sleeve. The pair of limiting strips slide in the pair of limiting grooves respectively. Arc-shaped sliding grooves are chiseled on the housing at each of the pair of limiting grooves, and arc-shaped sliders are slidably arranged in each of the pair of arc-shaped sliding grooves. A retaining groove is chiseled on each of the pair of limiting strips, and the pair of arc-shaped sliders are respectively retaining in the pair of retaining grooves. A control ring is slidably arranged outside the housing, and one end of the arc-shaped slider outside the housing is fixedly connected to the control ring.

2. The fixture for rapid detection of external threads in a product according to claim 1, characterized in that, A pair of connecting rods are inserted into the upper clamping body, and two pairs of limiting grooves are inserted into the lower clamping body.

3. The fixture for rapid detection of external threads in a product according to claim 2, characterized in that, A clamping plate is fixed to one end of the pair of connecting rods located between the lower clamping body and the upper clamping body, and a limit head is fixed to the other end of the pair of connecting rods away from the clamping plate.

4. The fixture for rapid detection of external threads in a product according to claim 3, characterized in that, The connecting rod is equipped with a first spring between the clamping plate and the inner wall of the upper and lower clamping bodies.

5. A fixture for rapidly detecting the external threads of a product according to claim 1, characterized in that, A first spring is rotatably mounted on the upper clamping body, and a lock head is fixed to one end of the upper clamping body.

6. A fixture for rapid detection of external threads in a product according to claim 5, characterized in that, The lower clamp has a locking groove, and the lock is engaged in the locking groove.

7. A fixture for rapidly detecting the external threads of a product according to claim 1, characterized in that, A drive shaft is fixed to the end of the housing away from the detection sleeve.

8. A fixture for rapidly detecting the external threads of a product according to claim 1, characterized in that, A circular groove is cut into the inner wall of the housing, and a circular ring is slidably disposed in the circular groove.

9. A fixture for rapidly detecting the external threads of a product according to claim 8, characterized in that, A second spring is installed between the ring and the inner wall of the ring groove.

10. A fixture for rapid detection of external threads in a product according to claim 1, characterized in that, A third spring is installed between the arc-shaped slider and the inner wall of the arc-shaped groove.

Images