Projection welding element detection device

Abstract

The utility model relates to a projection welding element detection device which comprises a first driving piece, a second driving piece, a connecting piece and a detection head. The connecting piece comprises a first end and a second end which are oppositely arranged, the first driving piece is connected to the first end, the second driving piece and the detection head are located on the upper side and the lower side of the second end respectively, and the second driving piece penetrates through the second end to be connected with the detection head. The first driving piece acts on the first end to drive the second driving piece and the detection head to move in the vertical direction at the same time; and the second driving part is used for driving the detection head to rotate in situ. The welding strength of a projection welding element can be detected when the first driving part drives the detection head to move downwards, whether threads and welding slag exist or not can be detected when the second driving part drives the detection head to rotate in situ, the welding slag which is not firmly adhered can be cleaned, through cooperative work of the first driving part and the second driving part, a to-be-detected finished product only needs to be loaded at one time, and the working efficiency is greatly improved. Therefore, the projection welding element on the to-be-detected finished product can be comprehensively detected, and the timeliness and convenience of projection welding element detection are greatly improved.

Description

Technical Field

[0001] This application relates to testing apparatus, and more particularly to a testing apparatus for projection solder components. Background Technology

[0002] Projection welding components, such as projection weld nuts and bolts, are mainly used for welding stamped parts made of low-carbon steel and low-alloy steel. In the automotive parts industry, projection welding offers numerous advantages: multiple weld points can be welded simultaneously within a single welding cycle; it boasts high productivity and eliminates current shunting effects; and it allows for the placement of weld points in narrow areas without being limited by spacing. Furthermore, due to the concentrated current density at the projection point, a higher current density allows for welding with a smaller current and reliably forms a smaller weld nugget.

[0003] With the development of intelligent manufacturing technology, the levels of automation and intelligence in manufacturing industries such as automobiles, shipbuilding, and aerospace are increasing, placing higher demands on the equipment in automated production lines. In automated sheet metal production lines, projection welding is a commonly used joining technique. However, during the welding process, high-voltage current passing through and being pressurized generates spatter from spot welding. This spatter has a one in ten thousand chance of adhering to the threads of the nut, preventing the projection welding element from being screwed in. Furthermore, in spot welding production, factors such as air pressure and current can lead to insufficient weld strength, resulting in incomplete or false welds on the projection welding element. This can cause defects such as the projection welding element detaching during product assembly, leading to problems with subsequent assembly of sheet metal parts, unreliable assembly, numerous rework or repair issues, reduced production line efficiency, and increased production costs. The main reason for this problem is the lack of an automatic projection welding element detection device to promptly identify defective projection welding elements in the finished product. Utility Model Content

[0004] To address the aforementioned problems, this application provides a projection solder component inspection device, comprising a first driving member, a second driving member, a connector, and an inspection head:

[0005] The connector includes a first end and a second end disposed opposite to each other. The first driving member is connected to the first end, and the second driving member and the detection head are respectively located on the upper and lower sides of the second end. The second driving member passes through the second end and connects to the detection head.

[0006] The first driving element acts on the first end and drives the second driving element and the detection head to move simultaneously in the vertical direction through the connecting element;

[0007] The second driving component acts to drive the detection head to rotate in place.

[0008] Furthermore, the projection welding element detection device also includes a sensor for sensing the displacement driven by the first driving member.

[0009] Furthermore, the projection welding component detection device also includes a bracket and a guide structure. The guide structure includes a guide groove and a guide block that cooperate with each other. One of the guide groove and the guide block is connected to the connector, and the other is connected to the bracket.

[0010] Furthermore, the guide groove includes a first guide groove, the concave shape of which is adapted to the convex shape of the guide block.

[0011] Furthermore, the projection welding component detection device also includes a limiting member, which includes a first limiting member and a second limiting member. The first limiting member and the second limiting member are arranged vertically and disposed on the bracket to limit the maximum driving range of the first driving member.

[0012] Furthermore, the first driving component is a standard cylinder, and the second driving component is a pneumatic motor.

[0013] Furthermore, the detection head is connected to the second driving component via a floating connector.

[0014] Furthermore, the projection welding component detection device also includes a base, the bracket is fixed to the base, and the first driving component is fixed to the bracket.

[0015] Furthermore, the projection solder component detection device also includes a support structure disposed on the base. The support structure includes a first support part and a second support part having a receiving cavity. The receiving cavity is located below the detection head. During the detection process, the projection solder component is pushed off and enters the receiving cavity after being supported by the first support part.

[0016] Furthermore, the detection head is a tap or a sleeve; the tap is used to detect projected weld nuts, and the sleeve is used to detect projected weld bolts.

[0017] This application relates to a projection weld element inspection device, comprising a first driving member, a second driving member, a connecting member, and an inspection head. The connecting member includes a first end and a second end disposed opposite to each other. The first driving member is connected to the first end, and the second driving member and the inspection head are respectively located on the upper and lower sides of the second end. The second driving member passes through the second end and connects to the inspection head. The first driving member acts on the first end and drives the second driving member and the inspection head to move simultaneously in the vertical direction through the connecting member. The second driving member acts to drive the inspection head to rotate in place. When the first driving member drives the inspection head to move downward, it can detect the welding strength of the projection weld element. When the second driving member drives the inspection head to rotate in place, it can detect whether there are threads, whether there is weld slag, and can clean loosely adhered weld slag. Through the coordinated work of the first and second driving members, only one loading of the finished product to be tested is required to perform comprehensive inspection of the projection weld elements on the finished product, greatly improving the timeliness and convenience of projection weld element inspection. Attached Figure Description

[0018] Figure 1 This is a first-view schematic diagram of the projection solder component testing device of this application (loaded with the finished product to be tested);

[0019] Figure 2 This is a second-view schematic diagram of the projection solder component testing device of this application (loaded with the finished product to be tested);

[0020] Figure 3 This is a first-view schematic diagram of the projection solder component testing device of this application (without the finished product to be tested);

[0021] Figure 4 This is a second-view schematic diagram of the projection solder component testing device of this application (without the finished product to be tested);

[0022] Figure 5 This is a partial explosion diagram of the projection weld element detection device of this application;

[0023] Figure 6 This application includes a schematic diagram of the bracket for the projection solder component testing device.

[0024] Figure 7 This is a schematic diagram of the partial structure assembly of the projection weld element detection device of this application;

[0025] Figure 8 for Figure 7 Enlarged view of part A in the middle;

[0026] Figure 9 This is a third-view schematic diagram of the projection solder component testing device of this application (with the finished product to be tested loaded).

[0027] Explanation of reference numerals in the attached figures

[0028] 1. First driving component; 11. First driving shaft; 2. Second driving component; 3. Detection head; 4. Connector; 41. First connecting part; 42. Second connecting part; 43. Third connecting part; 5. Bracket; 6. Base; 61. First support part; 62. Second support part; 7. Guide structure; 71. Guide groove; 711. First guide groove; 712. Second guide groove; 72. Guide block; 8. Limiting component; 81. First limiting component; 82. Second limiting component; 83. Buffer component; 20. Finished product to be tested; 23. Floating connector; 30. Projection solder component. Detailed Implementation

[0029] To gain a more detailed understanding of the features and technical content of the embodiments disclosed herein, the following description is provided in conjunction with the accompanying drawings. Figure 1-9 The implementation of the embodiments of this disclosure is described in detail. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, various details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other instances, well-known structures and apparatuses may be simplified in their depiction to simplify the drawings.

[0030] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0031] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0032] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" 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, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0033] Unless otherwise stated, the term "multiple" means two or more.

[0034] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0036] To provide a better understanding of the purpose, structure, features, and functions of this application, detailed descriptions are provided below with reference to specific embodiments.

[0037] To address the aforementioned problems, this application provides a projection solder component inspection device, comprising a first driving member 1, a second driving member 2, a connecting member 4, and an inspection head 3. The connecting member 4 includes a first end and a second end disposed opposite to each other. The first driving member 1 is connected to the first end, and the second driving member 2 and the inspection head 3 are respectively located on the upper and lower sides of the second end. The second driving member 2 passes through the second end and connects to the inspection head 3. The first driving member 1 acts on the first end and drives the second driving member 2 and the inspection head 3 to move simultaneously in the vertical direction through the connecting member 4. The second driving member 2 drives the inspection head 3 to rotate in place.

[0038] The first driving component 1 is connected to the second driving component 2 and the detection head 3 via the connector 4, so as to drive the second driving component 2 and the detection head 3 to move up and down in the vertical direction at the same time.

[0039] The connector 4 includes a first end and a second end that are disposed opposite to each other, wherein the first end and the second end can be integrally formed or two separate parts.

[0040] The first driving component 1 is mechanically connected to the first end of the connector 4, and the second driving component 2 and the detection head 3 are connected to the second end of the connector 4. The second driving component 2 passes through the second end and is directly connected to the detection head 3 so that the second driving component 2 can drive the detection head 3 more directly and conveniently.

[0041] In one embodiment, the detection head 3 is coaxially arranged with the second driving member 2, and the detection head 3 and the driving shaft of the second driving member 2 are coaxially connected.

[0042] When it is necessary to detect whether there are threads inside the projection weld element and whether there is weld slag at the thread position, the second drive component 2 is activated. The second drive component 2 drives the detection head 3 to rotate in place, that is, the detection head 3 rotates around its central axis. At the same time, the first drive component 1 drives the second drive component 2 and the detection head 3 to move downwards to the position of the projection weld element, and the detection head 3 engages with the projection weld element and screws in.

[0043] Specifically, if the detection head 3 and the projection welding element cannot be screwed into each other, it is determined that the projection welding element may be without threads or that there is firmly adhered welding slag at the thread of the projection welding element, that is, the projection welding element is unqualified; if the detection head 3 and the projection welding element are screwed into each other partially and then stop, it is determined that there is firmly adhered welding slag at the thread of the projection welding element, that is, the projection welding element is unqualified.

[0044] Meanwhile, as the detection head 3 rotates in place under the drive of the second drive component 2, during the process of the detection head 3 and the projection welding element being screwed into each other, the loosely adhered welding slag can be removed by rotating and rubbing the thread of the projection welding element.

[0045] When it is necessary to test the welding strength of the projection weld element, the first driving member 1 applies a downward driving force through the first end of the connector 4, pushing the connector 4 to move downward in the vertical direction, thereby driving the second driving member 2 and the detection head 3 to move downward synchronously. The detection head 3 applies a set pressure vertically to the projection weld element, and the welding strength of the projection weld element is determined by whether the projection weld element is pushed off.

[0046] It should be noted that when testing the welding strength of projection welding components, the second driving component 2 is in the closed state. That is, the second driving component 2 and the detection head 3 only move up and down in the vertical direction under the driving action of the connecting component 4 and the first driving component 1, and will not cause the detection head 3 to rotate in place.

[0047] The projection welding element detection device further includes a sensor for sensing the displacement driven by the first driving element 1.

[0048] After the sensor senses the displacement of the detection head 3 driven by the first driving component 1, that is, the displacement driven by the first driving component 1, the displacement is used to determine whether the projection welding component is a qualified product.

[0049] The sensor can be installed on the first driving component 1 to directly sense the displacement driven by the first driving component 1, such as various linear displacement sensors; or, the sensor can be installed on the connecting component 4, such as a laser displacement sensor or an infrared displacement sensor.

[0050] The projection welding component detection device also includes a bracket 5 and a guide structure 7. The guide structure 7 includes a guide groove 71 and a guide block 72 that cooperate with each other. One of the guide groove 71 and the guide block 72 is connected to the connector 4, and the other is connected to the bracket 5.

[0051] The bracket 5 is used to support other components of the projection welding component inspection device. The bracket 5 can be directly installed on the workbench or other suitable places.

[0052] The guide structure 7 includes a guide groove 71 and a guide block 72 that cooperate with each other. One of the guide groove 71 and the guide block 72 is connected to the connector 4 and can be fixed to the side wall of the connector 4 near the bracket 5 by means of screws, welding or other connection methods. The other of the guide groove 71 and the guide block 72 is connected to the bracket 5 and can be fixed to the outer side wall of the bracket 5 by means of screws, welding or other connection methods.

[0053] When the first driving member 1 drives the connecting member 4 to move up and down in the vertical direction, the guide groove 71 slides up and down along the outer wall of the guide block 72, which restricts the connecting member 4 to only produce vertical axial displacement and prevents the connecting member 4 from rotating or tilting due to external force interference.

[0054] The guide groove 71 includes a first guide groove 711, the concave shape of the first guide groove 711 being adapted to the convex shape of the guide block 72.

[0055] The first guide groove 711 has a concave structure, and the guide block 72 has a convex structure. Their shapes are perfectly matched with the groove shape of the first guide groove 711. For example, the cross-sections of the first guide groove 711 and the guide block 72 are both wedge-shaped, or the cross-sections of the first guide groove 711 and the guide block 72 are both dovetail-shaped, forming a sliding fit. This is to prevent the connecting part 4 from rotating or shifting during movement.

[0056] In one embodiment, a lubricant is applied between the first guide groove 711 and the guide block 72 to reduce sliding friction between the first guide groove 711 and the guide block 72 and wear generated during relative movement, thereby extending the service life of the first guide groove 711 and the guide block 72.

[0057] In an optional embodiment, a second guide groove 712 is further provided on the upper and / or lower part of the first guide groove 711. The second guide groove 712 is a U-shaped groove, wherein the opening of the U-shaped groove faces the direction of the guide block 72.

[0058] The second guide groove 712 and the first guide groove 711 are both provided on the connector 4 or both provided on the bracket 5.

[0059] The first guide groove 711 and the second guide groove 712 work together to guide and limit the vertical movement of the connector 4.

[0060] The projection welding component detection device further includes a limiting member 8, which includes a first limiting member 81 and a second limiting member 82. The first limiting member 81 and the second limiting member 82 are arranged vertically and disposed on the bracket 5 to limit the maximum driving range of the first driving member 1.

[0061] The first limiting member 81 and the second limiting member 82 are installed on the side of the bracket 5 and are arranged at intervals along the vertical direction to form a double limiting structure.

[0062] For example, the first limiting member 81 is installed on the upper part of the bracket 5, and the second limiting member 82 is installed on the lower part of the bracket 5. When the first driving member 1 drives the connecting member 4 to rise, when it reaches the limit position, the upper end of the connecting member 4 contacts the lower end of the first limiting member 81, preventing the connecting member 4 from continuing to rise. Similarly, when the first driving member 1 drives the connecting member 4 to fall, when it reaches the limit position, the lower end of the connecting member 4 contacts the upper end of the second limiting member 82, preventing excessive downward pressure.

[0063] When the first limiting member 81 is installed on the lower part of the bracket 5 and the second limiting member 82 is installed on the upper part of the bracket 5, the limiting process is the same as when the first limiting member 81 is installed on the upper part of the bracket 5 and the second limiting member 82 is installed on the lower part of the bracket 5, and will not be described again here.

[0064] The first limit member 81 and the second limit member 82 are provided to ensure that the movement of the connector 4 can still be terminated when the control system fails, so as to prevent the detection head 3 or the finished product 20 under test from being damaged due to overtravel.

[0065] The limiting component 8 is made of a cushioning material, such as rubber or polyurethane.

[0066] In an optional embodiment, the upper and lower ends of the connector 4 are respectively provided with buffer members 83 that cooperate with the limiting member 8; when the connector 4 moves up and down under the driving action of the first driving member 1 and reaches the maximum driving displacement, the buffer member 83 will contact the limiting member 8 first.

[0067] The detection head 3 is connected to the second driving component 2 via a floating connector 23.

[0068] Specifically, the upper end of the floating connector 23 is connected to the lower end of the second driving member 2, and the lower end of the floating connector 23 is connected to the upper end of the detection head 3. Specifically, the upper end of the floating connector 23 is fixed to the second driving member 2 by a locating pin or screw, and an anti-rotation structure is provided to ensure that the torque of the second driving member 2 can be transmitted to the detection head 3. The anti-rotation structure can be a triangular, hexagonal, or other polygonal connector 4, or it can be connected by a snap-fit ​​or other means.

[0069] The elastic restoring force of the floating connector 23 allows the detection head 3 to maintain an aligning posture in a free state, and can be quickly aligned with the detection position of the projection solder component when detection is required.

[0070] When the test head 3 contacts the projection solder component, the floating connector 23 automatically adjusts its angle and axial position to compensate for the flatness deviation or welding deformation of the finished product 20 or the projection solder component, which may cause the contact surface to tilt, ensuring that the test head 3 effectively fits the projection solder component and ensuring accurate test results.

[0071] The first driving component 1 is a standard cylinder, and the second driving component 2 is a pneumatic motor.

[0072] When the first driving component 1 is a standard cylinder, the first driving component 1 also includes a first driving shaft 11. The first driving shaft 11 has a movable end exposed to the outside. The first end of the connector 4 is connected to the movable end of the first driving shaft 11. The connector 4 moves vertically up and down with the driving action of the first driving shaft 11, thereby driving the second driving component 2 and the detection head 3 to move vertically up and down synchronously.

[0073] When testing the welding strength of projection welded components on the finished product, the pressure generated by the standard cylinder is set according to the testing requirements. By configuring different cylinder diameters of the standard cylinder and controlling it through the pressure regulating valve, the output force of the standard cylinder is kept constant.

[0074] In an optional embodiment, the second driving component 2 is a pneumatic motor, which is an actuator that converts the pressure energy of compressed air into rotational mechanical energy. In this application, the pneumatic motor can convert compressed air energy into the rotational motion of the detection head 3, driving the detection head 3 to perform quality inspection on the projection welded components.

[0075] In other methods, a floating connector 23 connects the pneumatic motor and the detection head 3. The pneumatic motor drives the detection head 3 to rotate through compressed air. Combined with the error compensation function of the floating connector 23, the rigid torque output of the pneumatic motor and the elastic compensation of the floating connector 23 are combined to ensure the rotation accuracy of the detection head 3 and avoid mechanical damage caused by excessive testing force, thus ensuring the stability and safety of the entire testing process.

[0076] The projection solder component detection device also includes a base 6, the bracket 5 is fixed to the base 6, and the first driving component 1 is fixed to the bracket 5.

[0077] The base 6 has a plate-like structure and is located at the lowest end of the entire projection welding component detection device. The bottom of the bracket 5 is fixed to the base 6 with screws, forming a stable connection with the base 6. The first driving component 1 is fixed to the bracket 5, forming a whole with the bracket 5 and the base 6.

[0078] The projection welding component detection device also includes a support structure disposed on the base 6. The support structure includes a first support part 61 and a second support part 62 having a receiving cavity. The receiving cavity is located below the detection head 3. During the detection process, the projection welding component is pushed off and enters the receiving cavity after being supported by the first support part 61 supporting the finished product 20 to be tested.

[0079] The lower end of the first support part 61 is fixedly connected to the upper end surface of the base 6. The upper end of the first support part 61 is configured to adapt to the shape of the finished product 20 to be tested, so as to support the finished product 20 to be tested more accurately and limit the displacement of the finished product 20 to be tested in the horizontal direction during the testing process.

[0080] The lower end of the second support part 62 is fixedly connected to the upper end surface of the base 6. The second support part 62 includes a receiving cavity, which is located below the detection head 3, and the opening of the receiving cavity faces the detection head 3.

[0081] In an optional embodiment, the support structure includes two first support parts 61 disposed opposite to each other, and a second support part 62 disposed on the line connecting the two first support parts 61.

[0082] The second support part 62 is disposed on the travel path of the detection head 3 along the vertical downward pressure direction, and the second support part 62 includes a receiving cavity, which provides movable space after the projection solder component is pushed off, and at the same time, the receiving cavity can be used to collect the pushed-off projection solder component. 30

[0083] During testing, the finished product 20 to be tested is placed on the first support part 61, and the position of the projection welding element on the finished product 20 to be tested is aligned with the receiving cavity of the second support part 62. When the first driving member 1 drives the detection head 3 to move downward, pressure is applied to the projection welding element. If the projection welding element is pushed off, it enters the receiving cavity, and the projection welding element at this position is determined to be unqualified.

[0084] In this application, the projection weld component detection device can be used to detect both projection weld nuts and projection weld bolts. The detection head 3 is a tap or a sleeve; the tap is used to detect projection weld nuts, and the sleeve is used to detect projection weld bolts.

[0085] The tap is a test head 3 with external threads; when inspecting projection weld nuts, the tap may be used to check whether the internal threads of the nut are qualified.

[0086] The sleeve is a test head 3 with an internal thread in the middle; when inspecting the projection weld bolt, the sleeve is put on the bolt and the external thread of the projection weld bolt is checked by rotating it.

[0087] In one embodiment, the first end and the second end of the connector 4 can be integrally formed; in another embodiment, the connector 4 includes a first connecting portion 41, a third connecting portion 43, and a second connecting portion 42 connected in sequence, with the third connecting portion 43 disposed between the first connecting portion 41 and the second connecting portion 42, forming a plate-like structure. The first end is located at the end of the first connecting portion 41 away from the third connecting portion 43 and is connected to the first driving member 1; the second end is located at the end of the second connecting portion 42 away from the third connecting portion 43 and is connected to the second driving member 2 and the detection head 3.

[0088] The testing process using the projection solder component testing device of this application is as follows:

[0089] First, the welding strength of the projection solder components is tested.

[0090] Keeping the second driving component 2 stationary, the first driving component 1 drives the detection head 3 and the second driving component 2 to move downwards, and the detection head 3 presses down against the threaded end face of the projection welding component according to the preset pressure.

[0091] If the projection welding element is not pushed off, the welding strength of the projection welding element is judged to be qualified based on the driving displacement of the first driving member 1; if the projection welding element is pushed off, the driving displacement of the first driving member 1 will increase relative to when the projection welding element is not pushed off, and at this time, the welding strength of the projection welding element is judged to be unqualified.

[0092] Secondly, assuming the welding strength of the projection welded component is qualified, check whether the projection welded component has threads.

[0093] The first driving component 1 drives the detection head 3 back to its initial state. At the same time, the second driving component 2 is activated and drives the detection head 3 to rotate synchronously. The first driving component 1 is activated again and drives the second driving component 2 and the detection head 3 to move downward until the detection head 3 presses against the upper end of the threaded end face of the projection welding element.

[0094] If the detection head 3 remains at the upper end of the threaded end face of the projection welding element, the driving displacement of the first driving member 1 is detected, and it is determined that the projection welding element has no thread.

[0095] If the detection head 3 moves downward from the upper end of the threaded end face of the projection welding element, then the driving displacement of the first driving member 1 is greater than the driving displacement of the first driving member 1 when the projection welding element has no thread, and at this time it is determined that the projection welding element has a thread.

[0096] Finally, when inspecting the projection welded components for threads, check the threads for weld slag and remove any sticky weld slag.

[0097] If the detection head 3 can be screwed into the bottom of the projection welding element, the driving displacement of the first driving member 1 is detected, and the projection welding element is judged to be qualified.

[0098] If the detection head 3 can be screwed into the projection weld element, but cannot be screwed into the bottom of the projection weld element, the driving displacement of the first driving component 1 is detected to determine that there is firmly adhered welding slag on the thread of the projection weld element, and the projection weld element is determined to be unqualified.

[0099] If the projection weld is found to have unqualified welding strength, no threads, or firmly adhered weld slag, the component will be automatically unloaded and reworked.

[0100] It should be noted that when using the projection weld element testing device of this application to test the projection weld elements of the finished product 20, the order of the projection weld element welding strength test, thread test, and slag test can be arranged according to actual needs, and this application does not impose specific restrictions.

[0101] In other alternative embodiments, the projection solder component detection device of this application is also connected to a control system. The control system scans the code of the finished product to be tested and then performs projection solder component detection. After detection, the detection results of the finished product to be tested are stored for traceability.

[0102] This application relates to a projection weld element inspection device, comprising a first driving member 1, a second driving member 2, a connecting member 4, and a detection head 3. The connecting member 4 includes a first end and a second end disposed opposite to each other. The first driving member 1 is connected to the first end, and the second driving member 2 and the detection head 3 are respectively located on the upper and lower sides of the second end. The second driving member 2 passes through the second end and connects to the detection head 3. The first driving member 1 acts on the first end and drives the second driving member 2 and the detection head 3 to move simultaneously in the vertical direction through the connecting member 4. The second driving member 2 drives the detection head 3 to rotate in place. When the first driving member 1 drives the detection head 3 to move downward, it can detect the welding strength of the projection weld element. When the second driving member 2 drives the detection head 3 to rotate in place, it can detect whether there are threads, whether there is weld slag, and can clean up loosely adhered weld slag. Through the coordinated work of the first driving member 1 and the second driving member 2, a comprehensive inspection of the projection weld element can be performed with only one clamping, greatly improving the timeliness and convenience of projection weld element inspection.

[0103] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "specifically," or "optional embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0104] This application has been described with reference to the above-mentioned embodiments; however, the above embodiments are merely examples for implementing this application. It must be noted that the disclosed embodiments do not limit the scope of this application. On the contrary, any modifications and refinements made without departing from the spirit and scope of this application are within the scope of patent protection of this application.

Claims

1. A device for detecting projection solder components, characterized in that, Includes a first driving component (1), a second driving component (2), a connecting component (4), and a detection head (3): The connector (4) includes a first end and a second end disposed opposite to each other. The first driving member (1) is connected to the first end. The second driving member (2) and the detection head (3) are located on the upper and lower sides of the second end, respectively. The second driving member (2) passes through the second end and connects to the detection head (3). The first driving member (1) acts on the first end and drives the second driving member (2) and the detection head (3) to move simultaneously in the vertical direction through the connecting member (4); The second driving element (2) drives the detection head (3) to rotate in place.

2. The projection solder component detection device according to claim 1, characterized in that, The projection welding element detection device further includes a sensor for sensing the displacement driven by the first driving element (1).

3. The projection solder component detection device according to claim 1, characterized in that, The projection welding component detection device also includes a bracket (5) and a guide structure (7). The guide structure (7) includes a guide groove (71) and a guide block (72) that cooperate with each other. One of the guide groove (71) and the guide block (72) is connected to the connector (4), and the other is connected to the bracket (5).

4. The projection solder component detection device according to claim 3, characterized in that, The guide groove (71) includes a first guide groove (711), the concave shape of the first guide groove (711) is adapted to the convex shape of the guide block (72).

5. The projection solder component detection device according to claim 3, characterized in that, The projection welding component detection device further includes a limiting member (8), which includes a first limiting member (81) and a second limiting member (82). The first limiting member (81) and the second limiting member (82) are arranged vertically and disposed on the bracket (5) to limit the maximum driving range of the first driving member (1).

6. The projection solder component detection device according to claim 1, characterized in that, The first driving component (1) is a standard cylinder, and the second driving component (2) is a pneumatic motor.

7. The projection solder component detection device according to claim 1, characterized in that, The detection head (3) is connected to the second drive unit (2) via a floating connector (23).

8. The projection solder component detection device according to claim 3, characterized in that, The projection solder component detection device also includes a base (6), the bracket (5) is fixed to the base (6), and the first drive member (1) is fixed to the bracket (5).

9. The projection solder component detection device according to claim 8, characterized in that, The projection welding component detection device also includes a support structure disposed on the base (6). The support structure includes a first support part (61) and a second support part (62) having a receiving cavity. The receiving cavity is located below the detection head (3). During the detection process, the first support part (61) supports the finished product (20) to be tested. After the projection welding component (30) is pushed off, it enters the receiving cavity.

10. The projection solder component detection device according to claim 1, characterized in that, The detection head (3) is a tap or a sleeve. The tap is used to detect projectile weld nuts, and the sleeve is used to detect projectile weld bolts.

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