Self-resetting special-shaped workpiece detection mechanism and detection system comprising same

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By designing self -reset workpiece detection agencies, the combination of positioning modules and rebound reset components solves the problem of accurate detection of alien workpieces in the existing technology, realizes high reliability workpiece testing, improves production stability of production stability Essence

CN222419118UActive Publication Date: 2025-01-28SHANGHAI HUIZHONG AUTOMOTIVE MFG

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Patent Information

Application Number: CN202323516129.1
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2023-12-22
Publication Date: 2025-01-28
Estimated Expiration: 2033-12-22

AI Technical Summary

Technical Problem

In the prior art, fixed positioning pins cannot accurately detect whether the special-shaped workpiece is placed in place, and the photoelectric sensor is easily contaminated by dust and oil, which reduces the stability of detection.

Method used

A self -reinforcement alien workpiece detection agency is designed, including base components, positioning modules, rebound reset components, and vertical correction components. Through the positioning of the upper and lower movement of the positioning module and the rebound of the spring, the self -reset testing of the workpiece is realized.

Benefits of technology

The device is highly reliable, which completely eliminates the problem of poor positioning signals caused by the fluctuations of the heterogeneous workpiece, which improves the stability of production and the reliability of the work.

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Abstract

The utility model provides a self-resetting special-shaped workpiece detection mechanism and a detection system comprising the same. The self-resetting special-shaped workpiece detection mechanism is characterized in that a base part is internally provided with a hollow cavity; the positioning module is arranged in the cavity in a penetrating manner, a first end part of the positioning module penetrates out of the upper part of the cavity, and a second end part of the positioning module penetrates out of the lower part of the cavity; the rebound reset part is arranged at the lower end of the positioning module in a sleeving manner, so that the positioning module moves up and down in the cavity to approach or leave the sensor; the perpendicularity correction component is installed below the springback reset component, and the second end of the positioning module penetrates out of the perpendicularity correction component. On-site verification shows that the device is high in reliability, the situation that positioning signals are poor due to the fact that the special-shaped workpiece of the type fluctuates for various process dimensional tolerances is completely eradicated, and production stability and tool reliability are improved.

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Description

Technical Field

[0001] The utility model relates to the field of automobile parts detection, in particular to a self-resetting special-shaped workpiece detection mechanism and a detection system comprising the same. Background Art

[0002] Steering knuckles, wheel brackets and other rough and finished products are mostly special-shaped workpieces, and fixed positioning pins are usually used to position the workpieces. Fixed positioning pins can usually only be used in conjunction with photoelectric sensors to detect workpieces, but this method cannot play a good role in the detection of special-shaped workpieces. Fixed positioning pins and photoelectric sensors can only detect whether the special-shaped workpiece exists, but cannot accurately detect whether the special-shaped workpiece is placed in place.

[0003] In fact, in actual use, it is difficult to find the best installation position for the fixed positioning pin and the photoelectric sensor so that this method can meet the requirements of detecting whether the special-shaped workpiece is placed in place, and in the machining industry due to the working environment.

[0004] The photoelectric sensor lens is easily contaminated by dust and oil, which greatly reduces the stability of this method.

[0005] In view of this, the inventor of the present application has designed a self-resetting special-shaped workpiece detection mechanism and a detection system including the same, in order to overcome the above-mentioned technical problems. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the defect in the prior art that the fixed positioning pin cannot accurately detect whether the special-shaped workpiece is placed in place, and to provide a self-resetting special-shaped workpiece detection mechanism.

[0007] The utility model solves the above technical problems through the following technical solutions:

[0008] A self-resetting special-shaped workpiece detection mechanism, characterized in that the self-resetting special-shaped workpiece detection mechanism comprises:

[0009] A base component, wherein a hollow cavity is provided in the base component;

[0010] A positioning module, wherein the positioning module is disposed in the cavity, a first end of the positioning module passes through an upper portion of the cavity, and a second end of the positioning module passes through a lower portion of the cavity;

[0011] A rebound reset component, wherein the rebound reset component is sleeved on the lower end of the positioning module so that the positioning module moves up and down in the cavity;

[0012] A verticality correction component is installed below the rebound reset component, and the second end of the positioning module passes outward from the verticality correction component.

[0013] According to an embodiment of the utility model, the base component is a positioning sleeve.

[0014] According to an embodiment of the utility model, the positioning sleeve is cylindrical.

[0015] According to an embodiment of the utility model, a step portion is provided at the bottom of the positioning sleeve for installation on a tooling plate.

[0016] According to an embodiment of the utility model, the step portion is located in the middle of the bottom of the positioning sleeve.

[0017] According to an embodiment of the present utility model, a plurality of symmetrical positioning holes are provided on the step portion, and the step portion is fixed to the tooling plate via a fixing member.

[0018] According to an embodiment of the utility model, the positioning module includes a probe pin connecting rod and a probe pin block, the probe pin block is installed on the probe pin connecting rod, the first end of the probe pin connecting rod is inserted from the bottom of the base component, installed to the top of the base component and passed through.

[0019] According to an embodiment of the utility model, the rebound reset component is a spring, and the spring is sleeved on the lower part of the probe pin connecting rod.

[0020] According to one embodiment of the utility model, the verticality correction component is a sleeve, which is installed below the spring. The sleeve is provided with a central circular hole, and the probe pin connecting rod is inserted into the central circular hole so that the sleeve is installed flush with the bottom of the base component.

[0021] The utility model also provides a self-resetting special-shaped workpiece detection system, which is characterized in that the self-resetting special-shaped workpiece detection system includes at least one self-resetting special-shaped workpiece detection mechanism as described above, a workpiece, a tooling plate and a proximity sensor, the workpiece is installed on the top of the self-resetting special-shaped workpiece detection mechanism, and the bottom of the self-resetting special-shaped workpiece detection mechanism is fixed on the tooling plate and is located directly above the proximity sensor.

[0022] The positive and progressive effects of the utility model are:

[0023] The self-resetting special-shaped workpiece detection mechanism of the utility model has been verified on site to have high reliability, completely eliminating the situation of poor positioning signals caused by various process size tolerance fluctuations of this type of special-shaped workpiece, thereby improving the stability of production and the reliability of tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always represent the same features, wherein:

[0025] Figure 1 It is an exploded view of the self-resetting special-shaped workpiece detection mechanism of the utility model.

[0026] Figure 2 It is an axial cross-sectional view of the self-resetting special-shaped workpiece detection mechanism of the utility model.

[0027] Figure 3 The figure is a working schematic diagram of the self-resetting special-shaped workpiece detection system of the utility model.

[0028] [Reference Signs]

[0029] Base member 10

[0030] Positioning module 20

[0031] Rebound reset component 30

[0032] Verticality correction component 40

[0033] Cavity 11

[0034] Step 12

[0035] Probe pin connecting rod 21

[0036] Probe block 22

[0037] The first end portion 211 of the probe pin connecting rod

[0038] The second end portion 212 of the probe pin connecting rod

[0039] Self-resetting special-shaped workpiece detection mechanism 100

[0040] Workpiece 200

[0041] Tooling board 300

[0042] Proximity Sensor 400 DETAILED DESCRIPTION

[0043] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0044] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.Preferred embodiments of the present invention will now be described in detail, examples of which are shown in the accompanying drawings.Where possible, the same reference numerals will be used throughout the drawings to represent the same or similar parts.

[0045] In addition, although the terms used in the present invention are selected from well-known and commonly used terms, some terms mentioned in the specification of the present invention may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this article.

[0046] Furthermore, it is required that the present invention be understood not only by the actual terms used but also by the meanings contained in each term.

[0047] Figure 1 It is an exploded view of the self-resetting special-shaped workpiece detection mechanism of the utility model. Figure 2 It is an axial cross-sectional view of the self-resetting special-shaped workpiece detection mechanism of the utility model.

[0048] like Figure 1 and Figure 2 As shown, the utility model discloses a self-resetting special-shaped workpiece detection mechanism, which includes: a base component 10, a positioning module 20, a rebound reset component 30 and a verticality correction component 40. Among them, a hollow cavity 11 is arranged in the base component 10. The positioning module 20 is arranged in the cavity 11, and the first end thereof passes through the upper part of the cavity 11, and the second end thereof passes through the lower part of the cavity 11.

[0049] The rebound reset component 30 is sleeved on the lower end of the positioning module 20, so that the positioning module 20 moves up and down in the cavity 11 to approach or move away from the sensor.

[0050] The verticality correction component 40 is installed below the rebound reset component 30 , and the second end of the positioning module 20 passes outward from the verticality correction component 40 .

[0051] Preferably, the base component 10 is a positioning sleeve. The positioning sleeve is preferably cylindrical.

[0052] Furthermore, the bottom of the positioning sleeve is provided with a step portion 12 for mounting on the tooling plate. The step portion 12 is located in the middle of the bottom of the positioning sleeve.

[0053] In addition, a plurality of symmetrical positioning holes are provided on the step portion 12 and are fixed to the tooling plate through fixing members.

[0054] The lower step (i.e., step portion 12) of the base member 10 is inserted into the tooling plate 300 (e.g., Figure 3 The mounting hole shown in the figure can realize accurate installation and positioning. There are two symmetrical screw holes at the middle step, which are fixed on the tooling plate 300 by hexagon socket screws. When installing, the position needs to be adjusted before tightening the screws.

[0055] Preferably, the positioning module 20 includes a probe pin connecting rod 21 and a probe pin block 22. The probe pin block 22 is installed on the probe pin connecting rod 21. The first end 211 of the probe pin connecting rod 21 is inserted from the bottom of the base component 10 and installed to the top of the base component 10 to pass through. The second end 212 extends downward along the cavity 11 and passes out of the verticality correction component 40.

[0056] The positioning module 20 is inserted from the bottom of the base component 10 and installed on the top of the base component 10. Figure 3 It is used in conjunction with the workpiece position detection.

[0057] Further preferably, the rebound reset component 30 is a spring, and the spring is sleeved on the lower part of the probe pin connecting rod 21 .

[0058] The rebound reset component 30 installs the spring from the bottom of the probe pin connecting rod 21 so that the spring covers the probe pin connecting rod 21. When the probe pin connecting rod 21 is pressed down, the probe pin is reset by the spring force.

[0059] More preferably, the verticality correction component 40 is a sleeve, which is installed below the spring. The sleeve is provided with a central circular hole, and the probe pin connecting rod 21 is inserted into the central circular hole so that the sleeve is installed flush with the bottom of the base component 10.

[0060] The verticality correction component 40 is installed under the spring, and the bottom of the probe pin connecting rod 21 is inserted into the central circular hole of the vertical correction component 40 to ensure that the bearing is installed flush with the bottom of the base and cannot protrude from the bottom of the base.

[0061] The verticality correction component 40 can ensure the overall verticality of the positioning module 20 when it is raised and pressed down, mainly to avoid the positioning module 20 from getting stuck or jammed due to non-verticality during the process of rising and lowering.

[0062] Figure 3 The figure is a working schematic diagram of the self-resetting special-shaped workpiece detection system of the utility model.

[0063] like Figure 3 As shown, the utility model also provides a self-resetting special-shaped workpiece detection system, which includes at least one self-resetting special-shaped workpiece detection mechanism 100 as described above, a workpiece 200, a tooling plate 300 and a proximity sensor 400. The workpiece 200 is mounted on the top of the self-resetting special-shaped workpiece detection mechanism 100, and the bottom of the self-resetting special-shaped workpiece detection mechanism 100 is fixed on the tooling plate 300, and is located directly above the proximity sensor 400.

[0064] According to the above structural description, the utility model self-resetting special-shaped workpiece detection mechanism uses a proximity sensor to check the rising and pressing status of the self-resetting elastic positioning pin, and its specific operation process is as follows:

[0065] In the normal state, the positioning module 20 (ie, the probe pin block and the probe pin connecting rod) is always in a non-pressed state due to the elastic force of the spring, and the proximity sensor 400 below does not detect the probe rod. At this time, the sensor is in the OFF state.

[0066] When the workpiece 200 is placed in place, the probe pin connecting rod 21 of the positioning module 20 is pressed down to the lowest point by the workpiece 200, and the proximity sensor detects the probe rod, and the sensor is in the ON state at this time.

[0067] Usually, a proximity sensor with a detection distance of less than 5 mm can be selected, and a suitable number of the self-resetting special-shaped workpiece detection mechanisms can be installed according to actual needs.

[0068] By adjusting the distance between the proximity sensor and the end of the probe pin connecting rod 21 when it is pressed down (the distance is controlled to be about 2 mm), the process of checking whether the workpiece is installed in place is realized. After the operation is completed, the normal state is restored and the operation can be continued to position the next workpiece.

[0069] After field verification, the device has high reliability and completely eliminates the problem of poor positioning signals caused by fluctuations in various process dimensional tolerances for this type of special-shaped workpieces, thereby improving production stability and tooling reliability.

[0070] In summary, the self-resetting special-shaped workpiece detection mechanism of the utility model has been verified on site, and the device has high reliability, completely eliminates the situation of poor positioning signal caused by various process dimensional tolerance fluctuations of this type of special-shaped workpiece, and improves the stability of production and the reliability of tooling.

[0071] For those skilled in the art, the above invention disclosure is merely an example and does not constitute a limitation to the present application.

[0072] Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still fall within the spirit and scope of the exemplary implementation of the present application.

[0073] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0074] The descriptions disclosed in this application are used to help understand one or more embodiments of the invention. In the above description of the embodiments of the application, multiple features are sometimes combined into one embodiment, figure or description thereof. However, this disclosure method does not mean that the object of the application requires more features than those mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0075] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications fall within the protection scope of the present invention.

Claims

1. A self-resetting special-shaped workpiece detection mechanism, characterized in that: The self-resetting special-shaped workpiece detection mechanism comprises: A base component, wherein a hollow cavity is provided in the base component; A positioning module, wherein the positioning module is disposed in the cavity, a first end of the positioning module passes through an upper portion of the cavity, and a second end of the positioning module passes through a lower portion of the cavity; A rebound reset component, wherein the rebound reset component is sleeved on the lower end of the positioning module so that the positioning module moves up and down in the cavity; A verticality correction component is installed below the rebound reset component, and the second end of the positioning module passes outward from the verticality correction component.

2. The self-resetting special-shaped workpiece detection mechanism according to claim 1, characterized in that: The base component is a positioning sleeve.

3. The self-resetting special-shaped workpiece detection mechanism according to claim 2, characterized in that: The positioning sleeve is cylindrical.

4. The self-resetting special-shaped workpiece detection mechanism according to claim 3, characterized in that: The bottom of the positioning sleeve is provided with a step portion for being mounted on a tooling plate.

5. The self-resetting special-shaped workpiece detection mechanism according to claim 4, characterized in that: The step portion is located in the middle of the bottom of the positioning sleeve.

6. The self-resetting special-shaped workpiece detection mechanism according to claim 5, characterized in that: The step portion is provided with a plurality of symmetrical positioning holes, and is fixed to the tooling plate via a fixing member.

7. The self-resetting special-shaped workpiece detection mechanism according to claim 1, characterized in that: The positioning module comprises a probe pin connecting rod and a probe pin block, wherein the probe pin block is mounted on the probe pin connecting rod, and the first end of the probe pin connecting rod is inserted from the bottom of the base component and is mounted to the top of the base component to pass through.

8. The self-resetting special-shaped workpiece detection mechanism according to claim 7, characterized in that: The rebound reset component is a spring, and the spring is sleeved on the lower part of the probe pin connecting rod.

9. The self-resetting special-shaped workpiece detection mechanism according to claim 8, characterized in that: The verticality correction component is a shaft sleeve, which is installed below the spring. The shaft sleeve is provided with a central circular hole, and the probe pin connecting rod is inserted into the central circular hole so that the shaft sleeve is installed flush with the bottom of the base component.

10. A self-resetting special-shaped workpiece detection system, characterized in that: The self-resetting special-shaped workpiece detection system includes at least one self-resetting special-shaped workpiece detection mechanism as described in any one of claims 1 to 9, a workpiece, a tooling plate and a proximity sensor, wherein the workpiece is mounted on the top of the self-resetting special-shaped workpiece detection mechanism, and the bottom of the self-resetting special-shaped workpiece detection mechanism is fixed on the tooling plate and is located directly above the proximity sensor.