Welding spot chiseling inspection device

Abstract

The utility model relates to the technical field of welding spot chiseling inspection, in particular to a welding spot chiseling inspection device. Comprising a rack, a hammering assembly and a chisel assembly, the chisel assembly comprises a chisel head seat and a chisel head, and the chisel head is connected with one end of the chisel head seat through magnetic force; the chisel head seat main body is in sliding connection with the rack, and scales are arranged on the chisel head seat main body; a guide rod is arranged on the rack, the hammering assembly comprises a hammering seat, the hammering seat is connected with the guide rod in a sliding manner, the hammering seat slides along the guide rod, the hammering seat is used for chiseling the other end of the chiseling head seat, so that the chiseling head is inserted into a sample, and the insertion depth is measured through scales. Different types of chisel heads can be rapidly installed and replaced according to specific characteristics of a to-be-detected welding spot, the depth of a chisel inserted into a sample can be accurately measured, and then the quality of the welding spot can be accurately detected.

Description

Technical Field

[0001] The utility model relates to the technical field of welding point chisel inspection, in particular to a welding point chisel inspection device. Background Art

[0002] Resistance spot welding is the most important connection process in the automobile manufacturing industry and is currently the most important form of car body connection process. The car body-in-white is made by connecting stamping parts by welding. Resistance spot welding is the most important connection method for body welding. The strength of the weld directly affects the strength of the body-in-white, and thus affects the safety of the entire vehicle. Therefore, monitoring the strength of resistance spot welding plays a very important role in ensuring the safety of the entire vehicle.

[0003] In the process of body-in-white manufacturing, the chisel inspection method is usually used to detect the welding quality. A special chisel is inserted to a certain depth near the set inspection weld point, and the chisel is moved up and down to check whether the weld point is loose. The weld point is qualified if there is no gap. After passing the inspection, the chisel inspection area needs to be repaired. Monitoring the strength of the weld point in this way can effectively ensure the welding quality of the body-in-white, and then ensure the strength and safety of the entire vehicle.

[0004] A Chinese patent document with publication number CN 206883572 U discloses a "weld spot chisel inspection tool" that can prevent employees from injuring their hands due to operating errors, thereby eliminating safety hazards and enabling employees to perform chisel inspections well even when they lack work skills. At the same time, the weld spot chisel inspection tool has a simple structure and is labor-saving, thereby reducing employee fatigue. The Chinese patent document CN 217542704 U discloses "a resistance spot welding strength detection tool". When the resistance spot welding strength needs to be detected, the detection end of the detection head is aligned with the gap between the two welding plates, and then a hammer is used to knock the knocking table so that the detection head is gradually inserted between the two welding plates. During the insertion process of the V-shaped detection head, the two welding plates are spread apart. If the resistance spot welding part is still fixedly connected together and there is no desoldering phenomenon, the resistance spot welding strength meets the standard and the product quality is guaranteed. After the detection head is withdrawn, the spread welding plate is clamped and restored. This detection method is a non-destructive detection, and the product can be directly detected without making a welding test piece, thereby reducing the cost and directly detecting the strength of the welding point of the product.

[0005] The existing weld spot chisel inspection device has at least the following defects and deficiencies: 1. The diameters of weld spots after welding different parts or different materials in the body-in-white are different, and chisels with different slopes need to be used for chisel inspection. However, the existing device cannot realize the rapid replacement of the chisel head. 2. The insertion depth of the chisel cannot be accurately measured, and the quality of the weld spot cannot be accurately detected. Utility Model Content

[0006] In order to overcome the deficiencies of the prior art, the utility model provides a weld chisel inspection device, which can quickly install and replace different types of chisel heads according to the specific characteristics of the weld to be inspected, can accurately measure the depth of the chisel inserted into the sample, and thus can accurately detect the quality of the weld.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A welding spot chiseling inspection device comprises a frame and a hammer assembly and a chisel assembly mounted on the frame; the chisel assembly comprises a chisel head seat and a chisel head, and the chisel head is connected to one end of the chisel head seat by magnetic force; the chisel head seat body is slidably connected to the frame, and a scale is provided on the chisel head seat body; a guide rod is provided on the frame, and the hammer assembly comprises a hammer seat, and the hammer seat is slidably connected to the guide rod, and the hammer seat slides along the guide rod, and the hammer seat chisels the other end of the chisel head seat so that the chisel head is inserted into a sample, and the insertion depth is measured by the scale.

[0009] Furthermore, the frame includes a portal frame, a guide rod and a limit plate; two portal frames are provided, one end of the guide rod is detachably connected to the portal frame, one end of the limit plate is slidably connected to the guide rod on one portal frame, and the other end of the limit plate is slidably connected to the guide rod on the other portal frame.

[0010] Furthermore, it also includes a clamping assembly, wherein two clamping assemblies are respectively mounted on two legs of the portal frame, and the two clamping assemblies clamp and fix the sample.

[0011] Furthermore, the clamping assembly includes a threaded column and a clamping plate, the threaded column is threadedly connected to the support leg of the portal frame, and the clamping plate is fixed to the end of the threaded column.

[0012] Furthermore, the limiting plate is provided with a limiting hole corresponding to the chisel head seat body, the chisel head seat body passes through the limiting hole, and the limiting hole guides the moving path of the chisel head seat body.

[0013] Furthermore, it also includes a fixing component, through which the chisel head seat body is fixed on the limiting plate.

[0014] Furthermore, the fixing assembly includes a threaded rod and a plug, the plug is fixed to one end of the threaded column, and the threaded column is threadedly connected to the limit plate; a serial hole is provided on the chisel head seat body, and the chisel head seat body is fixed to the limit plate by rotating the threaded rod so that the plug is inserted into the serial hole.

[0015] Furthermore, a magnetic seat is provided at one end of the chisel head seat, and the magnetic seat is provided with a magnetic groove; a magnetic protrusion corresponding to the magnetic groove is provided at one end of the chisel head, and the chisel head seat and the chisel head are magnetically connected by placing the magnetic protrusion into the magnetic groove.

[0016] Furthermore, the hammer assembly also includes a handle, which is fixed to the hammer seat.

[0017] Furthermore, the hammer assembly also includes a placement seat, which is fixed to the handle and is provided with a groove and a strap.

[0018] Compared with the prior art, the utility model has at least the following technical effects or advantages:

[0019] 1. The chisel head of the utility model is connected to one end of the chisel head seat by magnetic force, and the chisel head can be easily and quickly disassembled and assembled. Different types of chisel heads can be quickly installed and replaced according to the specific characteristics of the welding point to be inspected, so that chisel heads with different inclinations can be selected during chisel inspection.

[0020] The main body of the chisel head seat is provided with a scale, and the hammer seat slides along the guide rod, and the hammer seat chisels the other end of the chisel head seat so that the chisel head is inserted into the sample, and the insertion depth is measured by the scale, and the depth of the chisel inserted into the sample can be accurately measured, thereby accurately detecting the quality of the weld.

[0021] 2. The hammer seat of the utility model slides along the guide rod, and the movement path of the hammer seat of the guide rod is guided by the hammer seat sliding along the guide rod, so as to facilitate the chiseling of the chisel head seat, thereby avoiding the hammer seat from tilting during chiseling, and ensuring that the chiseling force can be accurately applied to the chisel head seat during chiseling. The limit plate is provided with a limit hole corresponding to the main body of the chisel head seat, and the main body of the chisel head seat passes through the limit hole. The limit hole guides the movement path of the main body of the chisel head seat, and then guides the movement path of the chisel head, ensuring that the chiseling force can be accurately applied to the sample during chiseling, and further ensuring accurate detection of the quality of the weld.

[0022] 3. The utility model is provided with a clamping assembly, which can clamp and fix the sample. During the chiseling inspection, there is no need to support the flat shovel with one hand and swing the hammer with the other hand, thereby avoiding the situation where the hammer hurts the hand. In addition, the operation is labor-saving, which can reduce the labor intensity of the operator and improve the efficiency of the chiseling inspection.

[0023] 4. The placement seat of the utility model is fixed on the handle, and a groove and a strap are provided on the placement seat. The placement seat is used to place the foot, and the foot can be fixed by the strap. When the position of the weld to be inspected is not convenient for the hand to chisel, the foot is used to apply the chiseling force to the hammer seat, thereby improving the flexibility of the entire device.

[0024] 5. The utility model is provided with a fixing assembly, and the plug can be inserted into the inner wall of the string-shaped hole laterally by rotating the threaded column, so that the fixation between the chisel head seat body and the limit plate can be achieved. By setting the string-shaped hole to be a string shape, when the position of the chisel head seat body relative to the limit plate needs to be fixed, the plug can be quickly inserted into the corresponding hole in the string-shaped hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0026] Figure 2 It is a three-dimensional structural schematic diagram of the utility model from another angle.

[0027] Figure 3 The utility model is a three-dimensional structural schematic diagram of a hammer assembly, a chisel assembly and a guide rod.

[0028] Figure 4 It is a three-dimensional structural schematic diagram of a chisel assembly of the utility model.

[0029] Figure 5 It is a schematic diagram of the three-dimensional exploded structure of the chisel component of the utility model.

[0030] In the figure: 1-door frame 2-hammer seat 3-guide rod 4-limiting plate 5-binding strap 6-placing seat 7-handle 8-clamping plate 9-threaded column 10-ring 11-adjusting plate 12-magnetic chisel head 13-pressing seat 14-scale 15-magnetic groove 16-magnetic seat 17-serial hole 18-limiting hole 19-plug 20-threaded rod DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below. In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described in combination with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width" and "

[0033] The directions or positional relationships indicated by terms such as “degree”, “thickness”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “axial”, “radial” and “circumferential” are based on the directions or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0034] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements.

[0035] For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0036] In the description of the utility model, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0037] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, the numerical expressions and numerical values ​​do not limit the scope of the utility model. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0038] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0039] [Example]

[0040] like Figure 1-5 As shown, a welding point chisel inspection device includes a frame and a hammer assembly and a chisel assembly installed on the frame.

[0041] The frame includes a door frame 1, a guide rod 3 and a limit plate 4. Two door frames 1 are provided, the two door frames 1 are arranged parallel to each other, the guide rod 3 is arranged vertically, the top of the guide rod 3 is provided with a cylindrical plug, the guide rod 3 is a T-shaped round rod, and the bottom end of the guide rod 3 is threadedly connected to the center position of the top cross bar of the door frame 1.

[0042] The limiting plate 4 is a long rectangular plate with through holes at both ends. The limiting plate 4 spans across the two door frames 1. The through hole at one end of the limiting plate 4 is sleeved on the guide rod 3 on one door frame 1 and is slidably connected thereto; the through hole at the other end of the limiting plate 4 is sleeved on the guide rod 3 on the other door frame and is slidably connected thereto.

[0043] In this embodiment, four clamping assemblies are provided, and two clamping assemblies are respectively installed at the bottom of the two legs of the portal frame 1, and the sample is clamped and fixed by the four clamping assemblies. The clamping assembly includes a threaded column 9 and a clamping plate 8. The threaded column 9 is threadedly connected to the bottom of the legs of the portal frame 1. The clamping plate 8 is a circular plate. The clamping plate 8 is fixed to one end of the threaded column 9 and is located on the inside. A handle is provided at one end of the threaded column 9 and is located on the outside. The spacing of the clamping plates 8 is adjusted by rotating the threaded column 9, and the position of the clamping plates 8 relative to the portal frame 1 is adjusted, and the sample is pressed and fixed by the four clamping plates 8.

[0044] The hammer assembly includes a hammer seat 2, a handle 7, a placement seat 6, a strap 5 and a collar 10. The hammer seat 2 is disc-shaped, with through holes at both ends, and the two ends are respectively sleeved on a guide rod 3, and the hammer seat 2 moves up and down along the guide rod 3. The handle 7 is vertically arranged and vertically fixed to the center of the top surface of the hammer seat 2, and the outer wall of the handle 7 is integrally formed with an anti-slip protrusion.

[0045] In order to improve the flexibility of the entire device, a placement seat 6 is movably connected to the outer wall of the top of the handle 7. The placement seat 6 is provided with a groove corresponding to the shape of the foot. A strap 5 is riveted on the top of the placement seat 6. A ring 10 is fixed to the top of the placement seat 6 by a pin. The foot can be placed by providing the placement seat 6, and the foot and the placement seat 6 can be fixed by using the strap 5 and the ring 10. Therefore, when the position of the welding point to be inspected is not convenient for chiseling inspection by hand, the foot can be used to apply a chiseling force to the chiseling seat 2, thereby improving the flexibility of the entire device.

[0046] The chisel assembly includes a chisel head seat and a chisel head. The main body of the chisel head seat is an adjustment plate 11. The adjustment plate 11 is a long rectangular plate. A magnetic seat 16 is provided at the bottom of the adjustment plate 11. A crimping seat 13 is integrally formed at the top of the adjustment plate 11. A limiting hole 18 corresponding to the adjustment plate 11 is provided on the limiting plate 4. The limiting hole 18 is T-shaped. The adjustment plate 11 passes through the limiting hole 4. The adjustment plate 11 moves up and down along the limiting hole 4. The limiting hole 4 guides the moving path of the adjustment plate 11, and then guides the moving path of the chisel head.

[0047] A string-shaped hole 17 is provided inside the adjusting plate 11, and a scale 14 is provided on the outer wall of one side of the adjusting plate 11. The adjusting plate 11 and the limiting plate 4 are fixed by a plug 19 and a threaded rod 20. The threaded rod 20 is connected to the inner wall of the threaded hole provided on the surface of the limiting plate 4 by a thread. The plug 19 is fixed to one end of the threaded rod 20 by a pin, and the outer diameter of the plug 19 and the inner diameter of the string-shaped hole 17 are adapted to each other. By rotating the threaded rod 20, the plug 19 can be inserted into the inner wall of the string-shaped hole 17 horizontally, so that the fixing between the adjusting plate 11 and the limiting plate 4 can be realized. By setting the string-shaped hole 17 to be string-shaped, when it is necessary to fix the position of the adjusting plate 11 relative to the limiting plate 4, the plug 19 can be quickly inserted into the corresponding hole in the string-shaped hole 17.

[0048] A magnetic groove 15 is provided on the lower surface of the magnetic seat 16, and the chisel head is a magnetic chisel head 12. A magnetic protrusion is provided on the top of the magnetic chisel head 12, and the magnetic protrusion of the magnetic chisel head 12 is magnetically attracted in the magnetic groove 15. The chisel head seat and the chisel head are placed in the magnetic groove 15 through the magnetic protrusion to realize magnetic connection.

[0049] The working principle and working process of the utility model are as follows:

[0050] 1. When it is necessary to perform chisel inspection on the weld to be inspected, first use the clamping plate 8 to fix the sample on the device.

[0051] 2. Then, a suitable magnetic chisel head 12 is selected, and the magnetic chisel head 12 is magnetically adsorbed on the inner wall of the magnetic groove 15, so that the magnetic chisel head 12 is installed and fixed.

[0052] 3. Then, according to the position of the welding point to be inspected, the position of the adjusting plate 11 relative to the limiting plate 4 is adjusted. After the adjustment is completed, the adjusting plate 11 and the limiting plate 4 are fixed by using the plug 19 and the threaded rod 20.

[0053] 4. Then, hold the handle 7 with your hand, and use the hammer seat 2 to chisel the top of the crimping seat 13, so that the magnetic chisel head 12 is inserted into the sample to a certain depth after being chiseled.

[0054] 5. Use the scale 14 to monitor the insertion depth. When the magnetic chisel head 12 is inserted to the set depth, release the clamping plate 8 from the sample, and then use the magnetic chisel head 12 to reciprocate the sample welding point to detect the firmness of the welding point to be inspected.

[0055] The hammer assembly provided can be used to chisel the top of the crimping seat 13, so that the magnetic chisel head 12 can be used to chisel the weld to be inspected after being chiseled. By magnetically adsorbing the magnetic chisel head 12 on the inner wall of the magnetic groove 15, different types of magnetic chisel heads 12 can be quickly replaced and installed according to the specific characteristics of the weld to be inspected. By rotating the threaded rod 20, the plug head 19 can be inserted into the inner wall of the string hole 17 horizontally, so that the fixing between the adjustment plate 11 and the limit plate 4 can be achieved. By setting the string hole 17 to be string-shaped, when the position of the adjustment plate 11 relative to the limit plate 4 needs to be fixed, the plug head 19 can be quickly inserted into the corresponding hole in the string hole 17. The handle 7 is held by hand, and the moving path of the hammer seat 2 is guided in combination with the guide rod 3, so as to facilitate the application of chiseling to the hammer seat 2, thereby avoiding the tilt of the hammer seat 2 during chiseling, and ensuring that the chiseling force can be accurately applied to the crimping seat 13 during chiseling. By rotating the threaded column 9, the position of the clamping plate 8 relative to the portal frame 1 can be clamped and adjusted, and during the chiseling process, the labor intensity can be reduced and the chiseling inspection efficiency can be improved. The depth of the magnetic chisel head 12 inserted into the sample weld point can be monitored by providing a scale 14.

[0056] In order to improve the flexibility of the entire device, a placement seat 6 is movably connected to the outer wall of the top of the handle 7, a strap 5 is riveted on the top of the placement seat 6, and a ring 10 is fixed to the top of the placement seat 6 by a pin. The foot can be placed by providing the placement seat 6, and the foot and the placement seat 6 can be fixed by the strap 5 and the ring 10. When the position of the weld to be inspected is not convenient for hand chiseling inspection, the foot can be used to apply a chiseling force to the chiseling seat 2, thereby improving the flexibility of the entire device.

[0057] The utility model can quickly install and replace different types of chisel heads according to the specific characteristics of the weld to be inspected, thereby improving the efficiency of the weld chisel inspection, and can accurately measure the depth of the chisel inserted into the sample, thereby accurately inspecting the quality of the weld.

[0058] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A welding point chisel detection device, characterized in that: It includes a frame and a hammer assembly and a chisel assembly mounted on the frame; The chisel assembly comprises a chisel head seat and a chisel head, wherein the chisel head is connected to one end of the chisel head seat by magnetic force; the main body of the chisel head seat is slidably connected to the frame, and a scale is provided on the main body of the chisel head seat; The frame is provided with a guide rod, and the hammering assembly includes a hammering seat, which is slidably connected to the guide rod. The hammering seat slides along the guide rod, and the hammering seat hammers the other end of the chisel head seat so that the chisel head is inserted into the sample, and the insertion depth is measured by a scale.

2. A welding spot gouge detection device according to claim 1, characterized in that: The frame comprises a portal frame, a guide rod and a limit plate; two portal frames are provided, one end of the guide rod is detachably connected to the portal frame, one end of the limit plate is slidably connected to the guide rod on one portal frame, and the other end of the limit plate is slidably connected to the guide rod on the other portal frame.

3. A welding spot gouge detection device according to claim 2, characterized in that: It also includes a clamping assembly, wherein two clamping assemblies are respectively mounted on two legs of the portal frame, and the two clamping assemblies clamp and fix the sample.

4. A weld spot gouge detection device according to claim 3, characterized in that: The clamping assembly comprises a threaded column and a clamping plate. The threaded column is threadedly connected to the legs of the portal frame, and the clamping plate is fixedly connected to the end of the threaded column.

5. A weld spot gouge detection device according to claim 2, characterized in that: The limiting plate is provided with a limiting hole corresponding to the chisel head seat body, the chisel head seat body passes through the limiting hole, and the limiting hole guides the moving path of the chisel head seat body.

6. A weld spot gouge detection device according to claim 2, characterized in that: It also includes a fixing component, through which the chisel head seat body is fixed on the limiting plate.

7. A welding spot gouge detection device according to claim 6, characterized in that: The fixing assembly includes a threaded rod and a plug, the plug is fixed to one end of the threaded rod, and the threaded rod is threadedly connected to the limit plate; a serial hole is provided on the chisel head seat body, and the chisel head seat body is fixed to the limit plate by rotating the threaded rod so that the plug is inserted into the serial hole.

8. A welding spot gouge detection device according to claim 1, characterized in that: One end of the chisel head seat is provided with a magnetic seat, and the magnetic seat is provided with a magnetic groove; one end of the chisel head is provided with a magnetic protrusion corresponding to the magnetic groove, and the chisel head seat and the chisel head are placed in the magnetic groove through the magnetic protrusion to realize magnetic connection.

9. A weld spot gouge detection device according to claim 1, characterized in that: The hammer assembly also includes a handle, which is fixed to the hammer seat.

10. A welding spot gouge detection device according to claim 9, characterized in that: The hammering assembly also includes a placement seat, which is fixed to the handle and is provided with a groove and a binding belt.

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