Novel internal thread depth and internal diameter testing fixture
By designing a new type of inner thread depth and inner diameter detection tool, and using the cooperation of the probe and sliding block, the problem of large error and low efficiency of the inner thread depth and inner diameter detection of the wire hole in vehicle manufacturing is solved, and fast and accurate detection results are achieved.
Patent Information
- Application Number
- CN202422347471.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-26
AI Technical Summary
In the prior art, in the field of vehicle manufacturing, there are problems of large errors and low efficiency in detecting the internal thread depth and inner diameter of component wire holes, especially in mass production, it is difficult to ensure the accuracy and consistency of the detection.
A new type of inner thread depth and inner diameter detection tool is designed, including a depth detection head and an inner diameter detection head. Through the cooperation of the probe and the sliding block, the intuitive detection of the thread depth and inner diameter of the wire hole is realized, and the detection results are judged by the screwing of the probe and the indicator scale.
It improves the accuracy and efficiency of detection, can quickly and accurately determine whether the thread depth and inner diameter of the wire hole are qualified, reduces artificial errors, and improves the reliability and convenience of detection.
Smart Images
Figure CN223091208U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of detection equipment, in particular to a novel internal thread screw depth and inner diameter gauge. Background Art
[0002] In production fields such as vehicle manufacturing, especially for components with high precision requirements, there is a need to detect the internal thread depth, inner diameter, and thread pitch of the tapped holes after processing of relevant components (such as the connecting pipe of the vehicle air release valve). For example, due to the influence of its own quality of the drilling and tapping equipment, or factors such as poor stability of the driving mechanism or control system failure during processing, the internal threads of the tapped holes are unqualified, so that relevant components can achieve precise installation and stable and controllable operation with other components.
[0003] In the prior art, for the internal thread depth of the tapped holes of relevant components, generally, the detector uses a measuring scale, etc. for detection. During specific detection, the lower end of the measuring scale is inserted into the bottom of the tapped hole, and then the detector visually observes the scale data of the measuring scale at the upper end of the tapped hole, and then obtains the internal thread depth data of the tapped hole. The above detection mode of the internal thread depth of the tapped hole is affected by the observation angle and the skills of the detector, and there is a probability of misreading data by the detector. For the detection of the inner diameter of the internal thread of the tapped hole, currently, it is generally detected by a vernier caliper, etc. The above detection mode cannot ensure that the entire internal thread of the tapped hole can be detected in place (for example, there are deviations in the inner diameter at a certain angle of the internal thread of the tapped hole), so there is also a certain probability of detection error. In fact, for a certain batch-produced component (such as the connecting pipe of the vehicle air release valve), the internal thread depth and inner diameter of the tapped holes at the same position should be the same. Therefore, it is very necessary to provide a gauge that can conveniently and reliably detect the internal thread depth and inner diameter of the tapped holes at the same position of batch components. Summary of the Utility Model
[0004] In order to overcome the drawback that there is no practical internal thread depth and inner diameter detection equipment for relevant batch components in the prior art as described in the background art, the utility model provides a novel internal thread screw depth and inner diameter gauge mainly used for detecting the internal thread depth and inner diameter of the tapped holes at the same position of the same components. The detector can conveniently detect the internal thread depth and inner diameter of the tapped holes at the corresponding positions of the components through the depth detection head and the movable detection head, and can intuitively prompt the detector whether the detected internal thread depth and inner diameter of the tapped holes are qualified. The detection speed is relatively faster, the detection accuracy is relatively higher, and the detection efficiency is correspondingly improved, bringing convenience to the staff.
[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:
[0006] A new type of internal thread depth and inner diameter detector, including a depth detection head, an inner diameter detection head, and a handle; characterized in that the upper and lower ends of the handle have threaded grooves, an anti-slip sleeve is installed on the outer side of the handle, and the outer side of the handle is of a special-shaped structure. The depth detection head includes a sliding block and a detection tube. The outer diameter of the lower end of the detection tube is larger than that of the upper end as a probe; an external thread is provided on the outer side of the probe, and there is a depth indication groove on one side of the middle position of the detection tube. The sliding block has a guiding hole, and the guiding hole of the sliding block is slidably sleeved on the outer side of the detection tube. The upper end of the detection tube has an external thread, and the upper end of the detection tube is installed at the lower end of the handle; the outer diameter of the upper end of the inner diameter detection head is larger than that of the lower end as probe A, an external thread is provided on the outer side of probe A, and the lower end of the inner diameter detection head has an external thread. The lower end of the inner diameter detection head is installed at the upper end of the handle.
[0007] Further, the outer diameter, depth of the probe, the inner diameter and depth of the internal thread of the threaded hole of the component to be detected are respectively the same.
[0008] Further, the inner diameter of the guiding hole of the sliding block is larger than the outer diameter of the detection tube, and the outer diameter of the lower end of the sliding block is larger than the inner diameter of the internal thread of the threaded hole of the component to be detected.
[0009] Further, there is a guiding groove on the other side of the middle position of the detection tube, a limiting seat is provided on one side inside the sliding block, and the limiting seat is located in the guiding groove. The height of the guiding groove is greater than the depth of the internal thread of the threaded hole of the component to be detected.
[0010] Further, the lower end of the depth indication groove of the sliding block is a horizontal structure and serves as an indication scale line.
[0011] Further, the outer diameter of probe A of the inner diameter detection head is larger than the outer diameter of the probe of the detection tube.
[0012] Further, a number of tooth-shaped protrusions are distributed on the surface of the anti-slip sleeve on the outer side of the handle.
[0013] Further, the distance between the lower end of the sliding block and the indication scale line is the same as the depth of the internal thread of the threaded hole of the component to be detected.
[0014] Compared with the prior art, the beneficial effects of the present utility model are: (1) When detecting the depth of the internal thread of the threaded hole with this new type, the probe at the lower end of the detection tube of the depth detection head is screwed into the bottom of the internal thread of the threaded hole of the component to be detected. By observing the position between the upper end of the sliding block and the indication scale line, it can be directly known whether the depth of the threaded hole is qualified. When the upper end of the sliding block is higher than the scale line, it means that the depth of the threaded hole is relatively too large, and vice versa, the depth is relatively too small; (2) When detecting the inner diameter of the internal thread of the threaded hole with this new type, screw probe A of the inner diameter detection head into the threaded hole. If it can be screwed into the threaded hole, it means that the inner diameter of its internal thread is relatively too large (if the probe cannot be screwed into the threaded hole, it means that the inner diameter of the internal thread of the threaded hole is too small). Description of the Drawings
[0015] The following further describes the present utility model in conjunction with the accompanying drawings and embodiments.
[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model.
[0017] Figure 2 It is a schematic diagram of the partial structure of the present utility model.
[0018] Figure 3 It is a photo diagram of the partial structure of the utility model. Specific embodiments
[0019] Figure 1 、 2 As shown in the figure, a new type of internal thread depth and inner diameter detector includes a depth detection head, an inner diameter detection head 2, and a handle 3; the upper and lower inner middle parts of the handle 3 respectively have internal thread fixing grooves 31, and an anti-slip sleeve 32 made of plastic material is sleeved outside the handle 3 (the outside of the handle is a hexagonal structure). The depth detection head includes a sliding block 101 and a detection tube 102. The outer diameter of the lower end of the detection tube 102 is larger than that of the upper end as a probe 103; the outer side of the probe 103 has an external thread, and a semi-circular depth indication groove 104 is provided at the left middle position of the detection tube. A through guiding hole 105 is provided in the middle of the sliding block 101, and the guiding hole 105 of the sliding block slides on the outside of the detection tube 102. The upper end of the detection tube 102 has an external thread, and the upper end of the detection tube 102 is screwed into the internal thread at the lower end of the handle 3 and installed at the lower end of the handle 3; the outer diameter of the upper end of the inner diameter detection head 2 is larger than that of the lower end as a probe A21, the outer side of the probe A21 has an external thread, the lower end of the inner diameter detection head 2 has an external thread, and the lower end of the inner diameter detection head 2 is screwed into the internal thread at the upper end of the handle and installed at the upper end of the handle 3. The internal thread fixing grooves 31 respectively provided in the upper and lower inner middle parts of the handle 3 can replace the depth detection head and the inner diameter detection head with probes 103 and probe A21 having different outer diameters, so as to realize the function of detecting the depth and inner diameter of the internal thread in different threaded holes.
[0020] Figure 1 、 2As shown in the figure, the outer diameter and depth of the probe 103 are respectively the same as the inner diameter and depth of the internal thread of the threaded hole of the component to be detected. The inner diameter of the guiding hole of the sliding block 101 is slightly larger than the outer diameter of the detection tube 102, and the outer diameter of the lower end of the sliding block 101 is larger than the inner diameter of the internal thread of the threaded hole of the component to be detected. There is a left-inward concave rectangular guiding groove 106 on the outer right side of the detection tube 102. The left side of the right end of the sliding block has an outward convex rectangular limiting seat 107. The limiting seat 107 is located in the guiding groove 106. The height of the guiding groove 106 is larger than the depth of the internal thread of the threaded hole of the component to be detected (the limiting seat 107 moves up or down along the guiding groove 106 of the detection tube 102. The limiting seat 107 and the guiding groove 106 enable the sliding block to move only up and down and not rotate). The lower end of the depth indicating groove of the sliding block is a horizontal structure and serves as the indicating scale line 1041. The outer diameter of the probe A21 of the inner diameter detection head is slightly larger than the outer diameter of the probe 103 of the detection tube by 0.2 mm. The outer surface of the anti-slip sleeve on the outside of the handle 3 is distributed with a number of tooth-shaped protrusions (to prevent the hand from slipping when turning the handle). The distance between the lower end of the sliding block 101 and the indicating scale line 1041 is the same as the depth of the internal thread of the threaded hole of the component to be detected.
[0021] Figure 1 , 2 As shown in the figure, the present invention is mainly used for detecting the depth and inner diameter of the internal thread of the threaded holes at the same positions of the same components. It is convenient for the detector to detect the depth and inner diameter of the internal thread of the corresponding threaded holes of the component through the depth detection head and the movable detection head, and can intuitively prompt the detector whether the depth and inner diameter of the internal thread of the detected threaded hole are qualified. Specifically, when detecting the depth of the internal thread of the threaded hole, the detector holds the handle 3 and screws the probe 103 at the lower end of the detection tube of the depth detection head into the bottom of the internal thread of the threaded hole of the component to be detected. Then, by directly observing the position between the upper end of the sliding block 101 and the indicating scale line 1041, it can be directly known whether the depth of the threaded hole is qualified. Specifically, when the upper end of the sliding block 101 is flush with the scale line 1041, it means that the depth of the threaded hole is qualified. When the upper end of the sliding block 101 is higher than the scale line 1041, it means that the depth of the threaded hole is relatively too large, and vice versa, the depth is relatively too small. When the present invention detects the inner diameter of the internal thread of the threaded hole, the probe A21 of the inner diameter detection head is screwed into the threaded hole. Since the outer diameter of the probe A21 of the inner diameter detection head is slightly larger than the outer diameter of the probe 103 of the detection tube by 0.2 mm, if the probe A21 can be screwed into the threaded hole, it means that the inner diameter of the internal thread of the threaded hole is relatively too large (if the probe 103 cannot be screwed into the threaded hole, it means that the outer diameter of the internal thread of the threaded hole is too small). The detection speed of the present invention is relatively faster and the detection accuracy is relatively higher, and the detection efficiency is correspondingly improved, which brings convenience to the staff.
[0022] Those skilled in the art should understand that although this specification is described according to embodiments, each embodiment does not only contain an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art. Therefore, the protection scope of this application is defined by the claims.
Claims
1. A new type of internal thread screw depth and inner diameter inspection tool, comprising a depth detection head, an inner diameter detection head, and a handle; characterized in that, The upper and lower ends of the handle have threaded grooves. An anti-slip sleeve is installed on the outer side of the handle, and the outer side of the handle is of a special-shaped structure. The depth detection head includes a sliding block and a detection tube. The outer diameter of the lower end of the detection tube is larger than that of the upper end as a probe. The outer side of the probe has an external thread. There is a depth indication groove on one side at the middle position of the detection tube. The sliding block has a guiding hole, and the guiding hole of the sliding block is slidably sleeved on the outer side of the detection tube. The upper end of the detection tube has an external thread, and the upper end of the detection tube is installed at the lower end of the handle. The outer diameter of the upper end of the inner diameter detection head is larger than that of the lower end as probe A. The outer side of probe A has an external thread. The lower end of the inner diameter detection head has an external thread, and the lower end of the inner diameter detection head is installed at the upper end of the handle.
2. The novel internal thread depth and inner diameter inspection tool according to claim 1, characterized in that The outer diameter and depth of the probe are respectively the same as the inner thread inner diameter and depth of the threaded hole of the component to be detected.
3. A novel internal thread depth and inner diameter inspection tool according to claim 1, characterized in that The inner diameter of the guiding hole of the sliding block is larger than the outer diameter of the detection tube, and the outer diameter of the lower end of the sliding block is larger than the inner thread inner diameter of the threaded hole of the component to be detected.
4. A novel internal thread depth and inner diameter inspection tool according to claim 1, characterized in that, There is a guiding groove on the other side at the middle position of the detection tube. There is a limiting seat on one side inside the sliding block, and the limiting seat is located in the guiding groove. The height of the guiding groove is larger than the inner thread depth of the threaded hole of the component to be detected.
5. A novel internal thread depth and inner diameter inspection tool according to claim 1, characterized in that, The lower end of the depth indication groove of the sliding block is a horizontal structure and serves as an indication scale line.
6. The novel internal thread depth and inner diameter inspection tool according to claim 1, characterized in that, The outer diameter of probe A of the inner diameter detection head is larger than the outer diameter of the probe of the detection tube.
7. A novel internal thread screw depth and inner diameter inspection tool according to claim 1, characterized in that The surface of the anti-slip sleeve on the outer side of the handle is distributed with a number of tooth-shaped protrusions.
8. A novel internal thread depth and inner diameter inspection tool according to claim 1, characterized in that, The distance between the lower end of the sliding block and the indication scale line is the same as the inner thread depth of the threaded hole of the component to be detected.