Riveting testing equipment

Abstract

The present application discloses a riveting detection device. The detection device includes: a displacement sensor, a first moving component, and a second moving component sleeved on the first moving component, the first moving component and the sensing end of the displacement sensor are in floating contact, and the second moving component and the body of the displacement sensor are fixedly connected; when the first moving component moves upward with the movement of the zeroing block, the zeroing operation is completed; when the first moving component after zeroing moves upward with the movement of the riveted product, the displacement sensor detects and obtains the riveting height of the riveted product. The present application solves the technical problems of unstable detection values ​​and low measurement accuracy caused by using absolute displacement detection equipment to measure the riveting height.

Description

Technical Field

[0001] The present application relates to the field of riveting detection, and in particular, to a riveting detection device. Background Art

[0002] At present, in the production process of automobile industry enterprises, the connection method of riveting between two parts often appears, such as Figure 1 Local features of molded parts.

[0003] After the product is riveted, the criterion for judging whether the product quality is qualified is the pull-off force test. The pull-off force test is a destructive test, which is usually used in laboratories. In order to convert it to the needs of the production line, we indirectly judge whether the product is qualified by testing the forming height and forming diameter after riveting.

[0004] In the actual production process, the absolute displacement detection method was mainly used in the early stage. The main problems of this form are unstable detection values ​​and low measurement accuracy. The main reasons are: the substrate shape of the product is complex, and the consistency tolerance of products in different batches is basically ±0.1mm; the automotive industry mostly uses double-speed chain-link production lines, and the flow tooling plates used for product positioning are generally configured with 30-40 sets, resulting in a product repeat positioning tolerance of ±0.1mm.

[0005] Currently, no effective solution has been proposed to solve the problem of unstable detection values ​​and low measurement accuracy caused by using absolute displacement detection equipment to measure riveting height in related technologies. Summary of the invention

[0006] The main purpose of the present application is to provide a riveting detection device to solve the problem that when using an absolute displacement detection device to measure the riveting height, the measured value is unstable and the accuracy is low.

[0007] In order to achieve the above objective, according to one aspect of the present application, a riveting detection device is provided.

[0008] The riveting detection device according to the present application includes: a displacement sensor, a first movable component, and a second movable component fitted on the first movable component, the first movable component and the sensing end of the displacement sensor are in floating contact, and the second movable component and the body of the displacement sensor are fixedly connected; when the first movable component moves upward with the movement of the zeroing block, the zeroing operation is completed; when the first movable component after zeroing moves upward with the movement of the riveted product, the displacement sensor detects and obtains the riveting height of the riveted product.

[0009] Furthermore, the first movable assembly includes: an inner probe rod and a first guide sleeve, the second movable assembly is sleeved on the inner probe rod, the top end of the inner probe rod is in floating contact with the sensing end of the displacement sensor, and the first guide sleeve is sleeved on the inner probe rod.

[0010] Furthermore, there are two first guide sleeves, which are respectively located at two ends of the inner probe rod.

[0011] Furthermore, the first moving component includes: an inner probe rod, a fixed ring, a force plate and a first spring, the second moving component is sleeved on the inner probe rod, the top end of the inner probe rod is connected to the displacement sensor, the fixed ring, the force plate and the first spring are sleeved on the inner probe rod, and the first spring is located between the fixed ring and the force plate.

[0012] Furthermore, the first movable assembly includes: an inner probe rod, a fixed ring, a force plate, a first spring and a first guide sleeve, the second movable assembly is sleeved on the inner probe rod, the fixed ring, the force plate and the first spring are sleeved on the inner probe rod, the first spring is located between the fixed ring and the force plate, and the first guide sleeve is sleeved on the inner probe rod.

[0013] Furthermore, the second moving component includes: an outer sleeve, a connecting plate and a fixed plate, the outer sleeve is sleeved on the inner probe rod, the connecting plate is connected to the outer sleeve, the fixed plate is connected to the connecting plate, the displacement sensor is connected to the fixed plate, and the fixed plate and the force-bearing plate are integrally formed.

[0014] Furthermore, the second moving component includes: an outer sleeve, a connecting plate and a fixed plate, the outer sleeve is sleeved on the inner probe rod, the connecting plate is connected to the outer sleeve, the fixed plate is connected to the connecting plate, the body of the displacement sensor is connected to the fixed plate, and the bottom end of the inner probe rod protrudes from the outer sleeve by 3mm-4mm.

[0015] Furthermore, the second moving component includes: an outer sleeve, a connecting plate, a fixed plate and a second guide sleeve, the outer sleeve is sleeved on the inner probe rod, the connecting plate is connected to the outer sleeve, the fixed plate is connected to the connecting plate, the body of the displacement sensor is connected to the fixed plate, and the second guide sleeve is sleeved on the outer sleeve.

[0016] Furthermore, the second moving component includes: an outer sleeve, a connecting plate, a fixed plate, a second guide sleeve and a second spring, the outer sleeve is sleeved on the inner probe rod, the connecting plate is connected to the outer sleeve, the fixed plate is connected to the connecting plate, the body of the displacement sensor is connected to the fixed plate, the second guide sleeve is sleeved on the outer sleeve, and the second spring is sleeved on the bottom end of the outer sleeve.

[0017] Furthermore, it also includes: a fixed seat and an anti-rotation pin, the fixed seat is sleeved on the second guide sleeve of the second movable component, and the anti-rotation pin is arranged on the connecting plate of the second movable component.

[0018] In the embodiment of the present application, a relative displacement detection method is adopted, through the cooperation of the first moving component, the second moving component and the displacement sensor, when the first moving component moves upward with the movement of the zeroing block, the zeroing operation is completed, and when the first moving component after zeroing moves upward with the movement of the riveted product, the displacement sensor detects and obtains the riveting height of the riveted product, thereby achieving the purpose of detecting the riveting height by the relative displacement detection method, thereby achieving the technical effect of improving the stability of the detection value and improving the measurement accuracy, and further solving the technical problem of unstable detection value and low measurement accuracy caused by using absolute displacement detection equipment to measure the riveting height. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0020] Figure 1 This is one of the structural schematic diagrams of the riveting detection equipment according to the embodiment of the present application;

[0021] Figure 2 This is the second structural schematic diagram of the riveting detection equipment according to the embodiment of the present application.

[0022] Reference numerals

[0023] 1. Displacement sensor; 2. First moving assembly; 3. Second moving assembly; 4. Inner probe rod; 5. First guide sleeve; 6. Fixed ring; 7. Force plate; 8. First spring; 9. Outer sleeve; 10. Connecting plate; 11. Fixed plate; 12. Second guide sleeve; 13. Second spring; 14. Fixed seat; 15. Anti-rotation pin. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0027] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0028] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] like Figure 1As shown, the present application relates to a riveting detection device, which includes: a displacement sensor 1, a first moving component 2, and a second moving component 3 fitted on the first moving component 2, the first moving component 2 and the sensing end of the displacement sensor 1 are in floating contact, and the second moving component 3 and the body of the displacement sensor 1 are fixedly connected; when the first moving component 2 moves upward with the movement of the zeroing block, the zeroing operation is completed; when the first moving component 2 after zeroing moves upward with the movement of the riveted product, the displacement sensor 1 detects the riveting height of the riveted product.

[0031] Specifically, the displacement sensor 1 has the function of converting displacement into readable displacement data when displacement occurs; the displacement sensor 1 is fixed on the second movable component 3, thereby ensuring that when the second movable component 3 is displaced, displacement data can be detected; the displacement sensor 1 is in floating contact with the sensing end of the first movable component 2, thereby ensuring the relative displacement of the first movable component 2 and the second movable component 3.

[0032] The first movable component 2 has the function of generating an upward displacement when subjected to the upward squeezing force of the zeroing block. Since the displacement sensor 1 and the sensing end of the first movable component 2 are in floating contact, when the first movable component 2 moves upward, it drives the sensing end of the displacement sensor 1 to move upward until the zeroing block moves to contact the second movable component 3, which will drive the first and second movable components to move upward at the same time, indicating that the zeroing operation of the first movable component 2 is completed; at this time, the displacement data detected by the displacement sensor 1 is not used as a reference; a measurement reference surface is found for the subsequent riveting height measurement, thereby providing a guarantee for the riveting height measurement.

[0033] The first movable component 2 also has the function of displacing upward when it is subjected to the upward extrusion force of the riveted product after returning to zero, until the surface of the riveted product and the reference surface of the second movable component 3 are in contact, which will drive the first and second movable components to move upward at the same time. At this time, there is no displacement between the sensing end and the body of the displacement sensor 1, and no value change will occur. The final value displayed on the displacement sensor 1 is the riveting height of the riveted product.

[0034] As preferred in this embodiment, the first moving assembly 2 includes: an inner probe rod 4 and a first guide sleeve 5, the second moving assembly 3 is sleeved on the inner probe rod 4, the top end of the inner probe rod 4 is connected to the displacement sensor 1, and the first guide sleeve 5 is sleeved on the inner probe rod 4. The inner probe rod 4 has the function of fixing the riveted product; the first guide sleeve 5 has the function of guiding when the inner probe rod 4 moves. As preferred in this embodiment, there are two first guide sleeves 5, which are respectively located at the two ends of the inner probe rod 4; the first guide sleeves 5 are arranged at both ends to play a more effective guiding role.

[0035] As preferred in this embodiment, the second moving assembly 3 includes: an outer sleeve 9, a connecting plate 10 and a fixing plate 11, the outer sleeve 9 is sleeved on the inner probe rod 4, the connecting plate 10 is connected to the outer sleeve 9, the fixing plate 11 is connected to the connecting plate 10, the displacement sensor 1 is connected to the fixing plate 11, and the fixing plate 11 is integrally formed with the force plate 7. The outer sleeve 9 has the function of generating relative displacement with the inner probe rod 4, the connecting plate 10 has the function of connecting the fixing plate 11, and the fixing plate 11 has the function of fixing the displacement sensor 1.

[0036] In this embodiment, the zeroing block is first contacted with the bottom of the inner probe rod 4, and the zeroing block can be lifted by the lifting mechanism (it can also be manually lifted). Since the inner probe rod 4 is in contact with the riveted product, the inner probe rod 4 also moves upward in the outer sleeve 9, and at the same time drives the first moving assembly 2 to move upward until the reference surface of the outer sleeve 9 sleeved on the inner probe rod 4 touches the surface of the zeroing block, and then continues to lift the zeroing block. If it is found that the entire riveting detection device moves upward, the lifting can be stopped, and the zeroing operation is completed; after the zeroing is completed, the position of the inner probe rod 4 after zeroing is maintained, the riveted part of the riveted product is aligned with the inner probe rod 4, and lifted upward by the lifting mechanism until the surface of the riveted product contacts the reference surface of the outer sleeve 9, and the riveting height value of the displacement sensor 1 is read. The value of the displacement sensor 1 will not change when it is lifted upward; the riveting height measurement is realized. In this process, a reference surface is specified, so that the detection value is sufficiently stable and the measurement accuracy is improved.

[0037] It should be explained that the inner probe rod 4 needs to maintain contact with the displacement sensor 1 at the initial position, preferably compressed by 2-5 mm to avoid impact on the displacement sensor 1 due to movement.

[0038] From the above description, it can be seen that the present application achieves the following technical effects:

[0039] In the embodiment of the present application, a relative displacement detection method is adopted, through the cooperation of the first movable component 2, the second movable component 3 and the displacement sensor 1, when the first movable component 2 moves upward with the movement of the zeroing block, the zeroing operation is completed; when the first movable component 2 after zeroing moves upward with the movement of the riveted product, the displacement sensor 1 detects the riveting height of the riveted product; in this way, the purpose of detecting the riveting height by the relative displacement detection method is achieved, thereby achieving the technical effect of improving the stability of the detection value and improving the measurement accuracy, and further solving the technical problem of unstable detection value and low measurement accuracy caused by using absolute displacement detection equipment to measure the riveting height.

[0040] As preferred in this embodiment, the first moving component 2 includes: an inner probe rod 4, a fixed ring 6, a force plate 7 and a first spring 8, the second moving component 3 is sleeved on the inner probe rod 4, the top of the inner probe rod 4 is connected to the displacement sensor 1, the fixed ring 6, the force plate 7, and the first spring 8 are sleeved on the inner probe rod 4, and the first spring 8 is located between the fixed ring 6 and the force plate 7.

[0041] As preferred in this embodiment, the first moving assembly 2 includes: an inner probe rod 4, a fixed ring 6, a force plate 7, a first spring 8 and a first guide sleeve 5, the second moving assembly 3 is sleeved on the inner probe rod 4, the fixed ring 6, the force plate 7 and the first spring 8 are sleeved on the inner probe rod 4, the first spring 8 is located between the fixed ring 6 and the force plate 7, and the first guide sleeve 5 is sleeved on the inner probe rod 4. The fixed ring 6 has the function of fixing the first spring 8; through the cooperation of the force plate 7 and the first spring 8, when the inner probe rod 4 is forced to move upward, the first spring 8 is squeezed, the first spring 8 is deformed by force, and the force is applied to the force plate 7; when the riveted product is removed, the inner probe rod 4 is restored to the initial state by the rebound force of the first spring 8, achieving the effect of automatic recovery.

[0042] As preferred in this embodiment, the second moving assembly 3 includes: an outer sleeve 9, a connecting plate 10 and a fixing plate 11, the outer sleeve 9 is sleeved on the inner probe rod 4, the connecting plate 10 is connected to the outer sleeve 9, the fixing plate 11 is connected to the connecting plate 10, the displacement sensor 1 is connected to the fixing plate 11, and the bottom end of the inner probe rod 4 protrudes 3mm-4mm from the outer sleeve 9. Sufficient space is provided for the inner probe rod 4 to move upward, thereby providing a guarantee for the realization of relative displacement detection and ensuring the normal realization of the riveting height detection function.

[0043] As preferred in this embodiment, the second moving assembly 3 includes: an outer sleeve 9, a connecting plate 10, a fixing plate 11 and a second guide sleeve 12, the outer sleeve 9 is sleeved on the inner probe rod 4, the connecting plate 10 is connected to the outer sleeve 9, the fixing plate 11 is connected to the connecting plate 10, the displacement sensor 1 is connected to the fixing plate 11, and the second guide sleeve 12 is sleeved on the outer sleeve 9. The second guide sleeve 12 plays a guiding role when the outer sleeve 9 moves.

[0044] As preferred in this embodiment, the second moving assembly 3 includes: an outer sleeve 9, a connecting plate 10, a fixing plate 11, a second guide sleeve 12 and a second spring 13. The outer sleeve 9 is sleeved on the inner probe rod 4, the connecting plate 10 is connected to the outer sleeve 9, the fixing plate 11 is connected to the connecting plate 10, the displacement sensor 1 is connected to the fixing plate 11, the second guide sleeve 12 is sleeved on the outer sleeve 9, and the second spring 13 is sleeved on the bottom end of the outer sleeve 9. The second spring 13 has the function of restoring the outer sleeve 9 to its initial state; when the inner and outer sleeves 9 are forced to move upward, the second spring 13 is pulled apart and deformed by force; when the riveted product is removed, the outer sleeve 9 is restored to its initial state by the rebound force of the second spring 13, achieving an automatic recovery effect.

[0045] As a preferred embodiment of the present invention, it further includes: a fixing seat 14 and an anti-rotation pin 15, wherein the fixing seat 14 is sleeved on the second guide sleeve 12 of the second moving assembly 3, and the anti-rotation pin 15 is arranged on the connecting plate 10 of the second moving assembly 3. The fixing seat 14 is installed on the equipment for fixing; and the anti-rotation pin 15 realizes the function of preventing rotation.

[0046] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A riveting detection device, characterized in that: include: A displacement sensor, a first moving component, and a second moving component sleeved on the first moving component, wherein the first moving component and the sensing end of the displacement sensor are in floating contact, and the second moving component and the body of the displacement sensor are fixedly connected; when the first moving component moves upward along with the movement of the zeroing block, the zeroing operation is completed; when the first moving component moves upward along with the movement of the riveted product, the displacement sensor detects and obtains the riveting height of the riveted product; The first moving assembly comprises: an inner probe rod, a fixed ring, a force plate, a first spring and a first guide sleeve, the second moving assembly is sleeved on the inner probe rod, the fixed ring, the force plate and the first spring are sleeved on the inner probe rod, the first spring is located between the fixed ring and the force plate, and the first guide sleeve is sleeved on the inner probe rod; It also includes: a fixed seat and an anti-rotation pin, wherein the fixed seat is sleeved on the second guide sleeve of the second movable assembly, and the anti-rotation pin is arranged on the connecting plate of the second movable assembly.

2. The riveting detection equipment according to claim 1, characterized in that: There are two first guide sleeves, which are respectively located at two ends of the inner probe rod.

3. The riveting detection equipment according to claim 1, characterized in that: The second moving component includes: an outer sleeve, a connecting plate and a fixed plate, the outer sleeve is sleeved on the inner probe rod, the connecting plate is connected to the outer sleeve, the fixed plate is connected to the connecting plate, the body of the displacement sensor is connected to the fixed plate, and the fixed plate and the force-bearing plate are integrally formed.

4. The riveting detection equipment according to claim 1, characterized in that: The second moving component includes: an outer sleeve, a connecting plate and a fixed plate, the outer sleeve is sleeved on the inner probe rod, the connecting plate is connected to the outer sleeve, the fixed plate is connected to the connecting plate, the body of the displacement sensor is connected to the fixed plate, and the bottom end of the inner probe rod protrudes from the outer sleeve by 3mm-4mm.

5. The riveting detection equipment according to claim 1, characterized in that: The second moving component includes: an outer sleeve, a connecting plate, a fixed plate and a second guide sleeve, the outer sleeve is sleeved on the inner probe rod, the connecting plate is connected to the outer sleeve, the fixed plate is connected to the connecting plate, the body of the displacement sensor is connected to the fixed plate, and the second guide sleeve is sleeved on the outer sleeve.

6. The riveting detection equipment according to claim 1, characterized in that: The second moving component includes: an outer sleeve, a connecting plate, a fixed plate, a second guide sleeve and a second spring. The outer sleeve is sleeved on the inner probe rod, the connecting plate is connected to the outer sleeve, the fixed plate is connected to the connecting plate, the body of the displacement sensor is connected to the fixed plate, the second guide sleeve is sleeved on the outer sleeve, and the second spring is sleeved on the bottom end of the outer sleeve.

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