Welding detection device

Abstract

A welding detection device is used for improving the detection accuracy of products and comprises a feeding mechanism for conveying workpieces and elastic pieces; the welding mechanism is used for welding the elastic sheet and the workpiece to form a product; the discharging mechanism comprises a discharging image taking piece for obtaining a welding image of the product and a discharging processor electrically connected with the discharging image taking piece and used for detecting the product based on the welding image and preset welding parameters; the plane detection mechanism is arranged adjacent to the blanking mechanism and comprises two plane image acquisition pieces for acquiring a first plane image and a second plane image of the product and a plane processor electrically connected with the two plane image acquisition pieces and used for detecting the product based on the first plane image, the second plane image and preset plane parameters; the three-dimensional detection mechanism comprises two three-dimensional image taking pieces for obtaining a first three-dimensional image and a second three-dimensional image of the product and a three-dimensional processor which is electrically connected with the two three-dimensional image taking pieces and detects the product based on the first three-dimensional image, the second three-dimensional image and preset three-dimensional parameters; and the transfer mechanism is arranged adjacent to the plane detection mechanism.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and specifically to a welding inspection device. Background Technology

[0002] After the workpiece and spring are welded together to form a product, weld joints are formed at the connection between the workpiece and the spring. The number and location of these weld joints, as well as the position of the spring relative to the workpiece, are important parameters for product quality. To ensure the quality of the product formed by welding the workpiece and spring, the product is usually placed on a platform after formation, and the number and location of weld joints, as well as the position of the spring relative to the workpiece, are obtained manually by visual inspection. However, the inspection method using manual visual inspection has a large error, resulting in low product inspection accuracy. Utility Model Content

[0003] In view of the above, it is necessary to provide a welding inspection device to improve the accuracy of product inspection.

[0004] This utility model embodiment provides a welding inspection device, including:

[0005] The feeding mechanism has adjacent welding positions and unloading positions on its periphery. The feeding mechanism conveys workpieces and springs through the welding positions and the unloading positions in sequence.

[0006] A welding mechanism is provided at the welding position and welds the spring and the workpiece to form a product, wherein the spring is connected to one side of the workpiece by a weld and bends to extend to the other side of the workpiece, and in the product, the surface on the same side as the weld is defined as the first surface of the product, and the surface opposite to the first surface of the product is defined as the second surface of the product.

[0007] The unloading mechanism is located at the unloading position and includes an unloading image acquisition device and an unloading processor electrically connected to the unloading image acquisition device. The unloading image acquisition device acquires a welding image of the first surface of the product, and the unloading processor determines whether the product meets the preset welding requirements based on the welding image and preset welding parameters.

[0008] A planar inspection mechanism is disposed adjacent to the unloading mechanism and includes two planar image acquisition elements and a planar processor electrically connected to the two planar image acquisition elements respectively. The two planar image acquisition elements respectively acquire a first planar image of a first surface of the product and a second planar image of a second surface of the product. The planar processor determines whether the position of the spring relative to the workpiece conforms to the preset planar requirements based on the first planar image, the second planar image and preset planar parameters.

[0009] A 3D inspection mechanism is disposed adjacent to the planar inspection mechanism and includes two 3D imaging elements and a 3D processor electrically connected to the two 3D imaging elements respectively. The two 3D imaging elements respectively acquire a first 3D image of a first surface of the product and a second 3D image of a second surface. The 3D processor determines whether the position of the spring relative to the workpiece meets the preset 3D requirements based on the first 3D image, the second 3D image and preset 3D parameters.

[0010] A transfer mechanism is disposed adjacent to the planar inspection mechanism to move the product that meets the preset welding requirements to the planar inspection mechanism, and also to move the product that meets the preset planar requirements to the three-dimensional inspection mechanism.

[0011] In some embodiments, the feeding mechanism includes:

[0012] Feeding support;

[0013] A feeding drive component is disposed on the feeding bracket;

[0014] A feeding turntable is connected to the feeding drive unit to rotate under the drive of the feeding drive unit. The welding position and the unloading position are located on the periphery of the feeding turntable and are spaced apart along the rotation direction of the feeding turntable.

[0015] A feeding fixture is provided on the feeding turntable to carry multiple workpieces and multiple springs.

[0016] In some embodiments, the feeding mechanism further includes:

[0017] Material feeding bracket;

[0018] A material feeding and translation component is provided on the material feeding bracket;

[0019] A material feeding lifting component is connected to the material feeding translation component to move horizontally under the drive of the material feeding translation component. The material feeding lifting component is connected to the material feeding image taking component to drive the material feeding image taking component to move closer to or away from the material feeding turntable.

[0020] In some embodiments, the planar detection mechanism further includes:

[0021] Planar support;

[0022] A planar translation component is provided on the planar support;

[0023] A planar base is connected to the planar translation component, so as to move horizontally under the drive of the planar translation component. Two planar image-taking components are respectively connected to the upper and lower ends of the planar base, and the image-taking sides of the two planar image-taking components are arranged facing each other.

[0024] An upper planar light source, connected to the planar base, illuminates the first surface of the product located between the two planar image-taking elements;

[0025] A lower planar light source is connected to the planar base and positioned opposite to the upper planar light source to illuminate the second surface of the product located between the two planar imaging elements.

[0026] In some embodiments, the planar detection mechanism further includes:

[0027] A planar support assembly includes a planar base, a planar rotating component, and a planar turntable. The planar rotating component is disposed on the planar base and connected to the planar turntable to drive the planar turntable to rotate. The planar turntable extends between two planar image-taking components and has multiple planar support grooves. The multiple planar support grooves are spaced apart along the rotation direction of the planar turntable to position multiple products. Each planar support groove passes through the planar turntable along its axial direction.

[0028] In some embodiments, each of the planar support grooves has a first floating member on each of its opposite sides. Each first floating member includes a first elastic body and a first positioning body. The first elastic body is embedded in the planar turntable, one end of the first positioning body is embedded in the planar turntable and abuts against the first elastic body, and the other end of the first positioning body protrudes from the planar turntable to guide the product to be accommodated in the planar support groove.

[0029] In some embodiments, the three-dimensional detection mechanism further includes:

[0030] A stereo positioning assembly includes a stereo base, a stereo drive, a stereo turntable, a pressing drive, and a supporting member. The stereo drive is disposed on the stereo base and connected to the stereo turntable to drive the stereo turntable to rotate. The stereo turntable extends between two stereo imaging elements and has multiple stereo bearing grooves. The multiple stereo bearing grooves are spaced apart along the rotation direction of the stereo turntable to position multiple products. Each stereo bearing groove passes through the stereo turntable along its axial direction. The pressing drive is connected to the stereo base and the supporting member to drive the supporting member to press the product into the stereo bearing groove.

[0031] In some embodiments, each of the three-dimensional support grooves has a second floating member at each of its opposite ends. Each second floating member includes a second elastic body and a second positioning body. The second elastic body is embedded in the three-dimensional turntable, one end of the second positioning body is embedded in the three-dimensional turntable and abuts against the second elastic body, and the other end of the second positioning body protrudes from the three-dimensional turntable to guide the product to be accommodated in the three-dimensional support groove. The abutting member includes a fixing body, a supporting body, and a resetting body. The fixing body is connected to the pressing drive member, the resetting body is embedded in the fixing body, one end of the supporting body is embedded in the fixing body and abuts against the resetting body, and the other end of the supporting body protrudes from the fixing body to press the product into the three-dimensional support groove.

[0032] In some embodiments, the three-dimensional detection mechanism further includes:

[0033] 3D support structure;

[0034] The first three-dimensional base is slidably connected to the three-dimensional support;

[0035] A first three-dimensional translation component is disposed on the three-dimensional support and connected to the first three-dimensional seat to drive the first three-dimensional seat to slide along the three-dimensional support;

[0036] The second three-dimensional translation component is disposed on the first three-dimensional base;

[0037] The second stereoscopic base is connected to the second stereoscopic translation member so as to move under the drive of the second stereoscopic translation member, and the two stereoscopic imaging members are respectively disposed on the second stereoscopic base;

[0038] The sliding direction of the first three-dimensional seat is perpendicular to the moving direction of the second three-dimensional seat.

[0039] In some embodiments, the transfer mechanism includes:

[0040] Transfer drive components;

[0041] A connector, which connects to the transfer drive unit to move under the drive of the transfer drive unit;

[0042] An adsorption element, connected to the connector, to adsorb the product;

[0043] An elastic element, the two ends of which elastically abut against the connector and the adsorption element, respectively.

[0044] In the aforementioned welding inspection device, the feeding mechanism, welding mechanism, unloading mechanism, planar inspection mechanism, and three-dimensional inspection mechanism can sequentially complete the feeding of workpieces and springs, the welding of workpieces and springs, the inspection of the welding area of ​​the product, the inspection of the planar structure of the product, and the inspection of the three-dimensional structure of the product, so as to realize the inspection of the product from multiple angles and improve the quality of inspection. Attached Figure Description

[0045] Figure 1 This is a structural schematic diagram of a product applicable to an embodiment of this utility model.

[0046] Figure 2 This is a schematic diagram of the welding inspection device according to an embodiment of the present invention.

[0047] Figure 3 for Figure 2 The diagram shows the structure of the feeding mechanism in the welding inspection device.

[0048] Figure 4 for Figure 2 The diagram shows the structure of the material feeding mechanism in the welding inspection device.

[0049] Figure 5 for Figure 2 An exploded view of the planar bearing component in the welding inspection device shown.

[0050] Figure 6 for Figure 2 The diagram shows a partial planar inspection mechanism in the welding inspection device.

[0051] Figure 7 for Figure 2 An exploded view of the transfer mechanism in the welding inspection device shown.

[0052] Figure 8 for Figure 2 An exploded view of the three-dimensional positioning component in the welding inspection device shown.

[0053] Figure 9 for Figure 2 The diagram shows a partial three-dimensional inspection mechanism in the welding inspection device.

[0054] Key component symbols: Welding inspection device 100, frame 110, feeding mechanism 120, welding position 120a, unloading position 120b, feeding bracket 121, feeding drive 122, feeding turntable 123, positioning groove 123a, feeding fixture 124, welding mechanism 130, unloading mechanism 140, unloading bracket 141, unloading translation component 142, unloading lifting component 143, unloading image acquisition component 144, plane inspection mechanism 15 0, Planar support assembly 151, Planar base 1511, Planar rotating component 1512, Planar turntable 1513, Planar base plate 1513a, Planar positioning block 1513b, Planar support groove 1513c, First floating component 1514, First elastic body 1514a, First positioning body 1514b, Planar bracket 152, Planar translation component 153, Planar seat 154, Planar image capturing component 155, Upper plane light source 156, Lower plane light source Source 157, 3D detection mechanism 160, 3D positioning component 161, 3D base 1611, 3D drive component 1612, 3D turntable 1613, 3D base plate 1613a, 3D positioning block 1613b, 3D bearing groove 1613c, pressing drive component 1614, supporting component 1615, fixed body 1615a, reset body 1615b, supporting body 1615c, second floating component 1616, second elastic body 1616a Second positioning body 1616b, three-dimensional support 162, first three-dimensional seat 163, first three-dimensional translation component 164, second three-dimensional translation component 165, second three-dimensional seat 166, three-dimensional imaging component 167, transfer mechanism 170, transfer drive component 171, connector 172, adsorption component 173, elastic component 174, product 200, first surface 200a, second surface 200b, weld 200c, workpiece 210, spring sheet 220. Detailed Implementation

[0055] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0056] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows for mutual communication; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components. In the description of this utility model, it should be noted that "multiple" means two or more, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0057] The embodiments of this case will be described in detail below with reference to the accompanying drawings.

[0058] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of product 200 applicable to an embodiment of the present invention. Specifically, product 200 includes a generally sheet-shaped workpiece 210 and a generally U-shaped spring piece 220. One end of the spring piece 220 is welded to one side of the workpiece 210, and the other end of the spring piece 220 is bent and extends to the other side of the workpiece 210. Here, the surface of product 200 on the same side as the weld 200c is defined as the first surface 200a of product 200, and the surface of product 200 opposite to the first surface 200a is defined as the second surface 200b of product 200. In this embodiment, each product 200 consists of one workpiece 210 and two spring pieces 220, and the number of welds 200c between each spring piece 220 and the workpiece 210 is three.

[0059] Please see Figure 2 This utility model provides a welding inspection device 100 for welding and inspecting products 200 to improve the inspection accuracy of products 200. The welding inspection device 100 includes a frame 110, and a feeding mechanism 120, a welding mechanism 130, a unloading mechanism 140, a planar inspection mechanism 150, a three-dimensional inspection mechanism 160, and a transfer mechanism 170, all mounted on the frame 110. The unloading mechanism 140 is located on one side of the feeding mechanism 120, and the planar inspection mechanism 150 and the transfer mechanism 170 are both located between the unloading mechanism 140 and the three-dimensional inspection mechanism 160. It should be noted that the feeding mechanism 120, welding mechanism 130, unloading mechanism 140, planar inspection mechanism 150, three-dimensional inspection mechanism 160, and transfer mechanism 170 are all independent mechanisms and are not connected to each other, facilitating the quick assembly and disassembly of the welding inspection device 100.

[0060] Please see Figure 2 and Figure 3The feeding mechanism 120 is used to transport multiple workpieces 210 and multiple spring pieces 220. The feeding mechanism 120 includes a feeding bracket 121 on the support frame 110, a feeding drive 122 supported on the feeding bracket 121, a feeding turntable 123 connected to the feeding drive 122 and located above the feeding drive 122, and a feeding fixture 124 supported on the feeding turntable 123 and protruding upward from the feeding turntable 123. The feeding drive unit 122 drives the feeding turntable 123 to rotate. The feeding welding position 120a and the unloading position 120b are located on the periphery of the turntable 123, and are spaced apart along the rotation direction of the feeding turntable 123. The feeding turntable 123 is approximately circular, and has multiple positioning slots 123a spaced apart along its circumference. Each positioning slot 123a can be embedded to position a feeding fixture 124. Each feeding fixture 124 simultaneously loads multiple workpieces 210 and multiple spring pieces 220. In this embodiment, there are four positioning slots 123a, which are equally spaced along the circumference of the feeding turntable 123. Exemplarily, the feeding drive unit 122 is a rotary motor.

[0061] Please see Figure 2 and Figure 3 The welding mechanism 130 is located at the welding position 120a and is used to weld the workpiece 210 and the spring piece 220 on the feeding fixture 124 to form the product 200. The welding mechanism 130 forms a weld 200c after welding the workpiece 210 and the small part 220. The welding mechanism 130 can be a laser welding machine.

[0062] Please see Figure 2 and Figure 4 The unloading mechanism 140 is located at the unloading position 120b and includes an unloading bracket 141 mounted on the frame 110, an unloading translation component 142 vertically connected to the upper end of the unloading bracket 141, an unloading lifting component 143 connected to one side of the unloading translation component 142 and arranged parallel to the unloading bracket, an unloading image acquisition component 144 connected to the unloading lifting component 143, and an unloading processor (not shown) electrically connected to the unloading image acquisition component 144. The unloading translation component 142 drives the unloading lifting component 143 to move horizontally, and the unloading lifting component 143 drives the unloading image acquisition component 144 to move closer to or further away from the feeding turntable 123. When the feeding drive component 122 drives the feeding turntable 123 to move the product 200 to a position corresponding to the unloading position 120b, the unloading image acquisition component 144 acquires an image of the first surface 200a of the product 200 to form a welding image. The unloading processor determines whether the product 200 meets the preset welding requirements based on the welding image and preset welding parameters. Among them, the unloading translation component 142 can be a stepper motor, the unloading lifting component 143 can be a telescopic cylinder, and the unloading processor can be set on the frame 110 or on the unloading bracket 141.

[0063] It should be noted that the aforementioned welding images include the position and number of welds 200c. The preset welding parameters include the number and position of welds. If the unloading mechanism 140 detects that the position and number of welds 200c in product 200 are the same as the number and position of welds in the preset welding parameters, it indicates that product 200 meets the preset welding requirements; otherwise, product 200 does not meet the preset welding requirements. The transfer mechanism 170 moves product 200 that meets the preset welding standards to the plane inspection mechanism 150.

[0064] Please see Figure 2 and Figure 5 The planar inspection mechanism 150 includes a planar bearing component 151 disposed on the frame 110. Specifically, the planar support assembly 151 includes a planar base 1511 disposed on the frame 110, a planar rotating component 1512 supported on the planar base 1511, and a planar turntable 1513 supported above the planar rotating component 1512 and coaxial with and connected to the planar rotating component 1512. The planar rotating component 1512 drives the planar turntable 1513 to rotate. The planar turntable 1513 includes a planar base plate 1513a connected to the planar rotating component 1512 and generally plate-shaped, and a plurality of planar positioning blocks 1513b spaced circumferentially along the planar base plate 1513a. Each planar positioning block 1513b is generally strip-shaped and has a plurality of planar support grooves 1513c. The plurality of planar support grooves 1513c are spaced circumferentially along the length direction of the planar positioning block 1513b. Each planar support groove 1513c positions a product 200. Each planar support groove 1513c passes through the planar positioning block 1513b along the rotation axis of the planar turntable 1513. Among them, the planar rotating component 1512 is a rotary motor.

[0065] In this embodiment, there are four planar positioning blocks 1513b. The four planar positioning blocks 1513b are equally spaced along the circumference of the planar base plate 1513a. Each planar positioning block 1513b is provided with five planar bearing grooves 1513c. The five planar bearing grooves 1513c are equally spaced along the length direction of the planar positioning block 1513b.

[0066] Furthermore, each planar support groove 1513c has a first floating member 1514 on each of its opposite sides. Each first floating member 1514 includes a first elastic body 1514a embedded in the planar positioning block 1513b and a first positioning body 1514b embedded in the planar positioning block 1513b and abutting against the first elastic body 1514a. The end of the first elastic body 1514a away from the first positioning body 1514b abuts against the planar base plate 1513a, and the end of the first positioning body 1514b away from the first elastic body 1514a protrudes from the planar positioning block 1513b to guide the product 200 to be accommodated in the planar support groove 1513c. The two first floating members 1514 can evenly float and guide the product 200 to the corresponding planar support groove 1513c to avoid collision with the product 200. For example, the first elastic body 1514a can be a spring.

[0067] Please see Figure 2 and Figure 6 The planar detection mechanism 150 also includes a planar support 152 disposed on the frame 110, a planar translation component 153 horizontally connected to the planar support 152, a planar seat 154 vertically connected to the planar translation component 153 and disposed parallel to the planar support 152, two planar image acquisition components 155 respectively connected to the upper and lower ends of the planar seat 154 and located on the upper and lower sides of the planar turntable 1513, an upper planar light source 156 disposed on the planar seat 154 and located between the two planar image acquisition components 155, a lower planar light source 157 disposed on the planar seat 154 and located between the two planar image acquisition components 155 and disposed opposite to the upper planar light source 156, and a planar processor (not shown) electrically connected to the two planar image acquisition components 155 respectively. The planar translation component 153 drives the planar seat 154 to move horizontally. The two planar imaging components 155 are positioned facing each other to acquire the first planar image of the first surface 200a and the second planar image of the second surface 200b of the product 200, respectively. The upper planar light source 156 is used to illuminate the first surface 200a of the product 200 located between the two planar imaging components 155, and the lower planar light source 157 is used to illuminate the second surface 200b of the product 200 located between the two planar imaging components 155. The planar processor determines whether the position of the spring piece 220 in the product 200 relative to the workpiece 210 meets the preset planar requirements based on the first planar image, the second planar image and the preset planar parameters.

[0068] In this embodiment, the planar translation component 153 can be a stepper motor, and both the upper planar light source 156 and the lower planar light source 157 can be strip light sources.

[0069] It should be noted that the aforementioned first planar image refers to a planar image of the product 200 obtained along a direction perpendicular to the first surface 200a, and the aforementioned second planar image refers to a planar image of the product 200 obtained along a direction perpendicular to the second surface 200b. The preset planar standard includes the horizontal error range of the spring 220 relative to the workpiece 210, wherein the horizontal error range refers to the error range of the position of the spring 220 relative to the workpiece 210 in the direction from one spring 220 to another. If the planar detection mechanism 150 detects that the positional difference of the spring 220 in the product 200 relative to the workpiece 210 in the direction from one spring 220 to another is within the horizontal error range, it indicates that the product 200 meets the preset planar requirements; otherwise, it indicates that the product 200 does not meet the preset planar requirements. The product 200 that meets the preset planar requirements is moved to the three-dimensional detection mechanism 160 by the transfer mechanism 170.

[0070] Please see Figure 2 and Figure 7 The transfer mechanism 170 includes a transfer drive 171 mounted on the frame 110, a generally rectangular connector 172 connected to one end of the transfer drive 171, an adsorption member 173 connected to the end of the connector 172 away from the transfer drive 171, and elastic members 174 whose two ends elastically abut against the ends of the connector 172 away from the transfer drive 171 and the adsorption member 173, respectively. The adsorption member 173 cooperates with the elastic member 174 to elastically adsorb the product 200. The transfer drive 171 drives the connector 172 to rotate and move the adsorption member 173 and the elastic member 174, thereby moving the product 200, after being detected by the unloading mechanism, sequentially to the planar detection mechanism 150 and the three-dimensional detection mechanism 160. The transfer drive 171 can be a robotic arm, the connector 172 can be a flange, and the elastic member 174 can be a spring.

[0071] In this embodiment, there are five adsorption elements 173. The five adsorption elements 173 are equally spaced along the length direction of the connector 172 to simultaneously adsorb multiple products 200. Two elastic elements 174 are provided between each adsorption element 173 and the connector 172. The two elastic elements 174 are spaced apart along the length direction of the connector 172 to improve the floating stability of the adsorption element 173 relative to the connector 172.

[0072] To improve the transfer efficiency of the welding inspection device 100, in this embodiment, there are two transfer mechanisms 170. One transfer mechanism 170 is located between the feeding mechanism 120 and the planar inspection mechanism 150 to transfer the product 200 located at the unloading position 120b to the planar inspection mechanism 150. The other transfer mechanism 170 is located between the feeding mechanism 120 and the three-dimensional inspection mechanism 160 to transfer the product 200 on the planar inspection mechanism 150 to the three-dimensional inspection mechanism 160.

[0073] Please see Figure 2 and Figure 8 The three-dimensional detection mechanism 160 includes a three-dimensional positioning component 161 disposed on the frame 110. The three-dimensional positioning component 161 includes a three-dimensional base 1611 disposed on the frame 110, a three-dimensional drive component 1612 supported on the three-dimensional base 1611, a three-dimensional turntable 1613 connected to the top of the three-dimensional drive component 1612 and coaxial with the three-dimensional drive component 1612, a pressing drive component 1614 connected to the three-dimensional base 1611 and located above the three-dimensional turntable 1613, and a supporting component 1615 connected to the pressing drive component 1614 and located above the three-dimensional turntable 1613. The three-dimensional drive unit 1612 drives the three-dimensional turntable 1613 to rotate. The three-dimensional turntable 1613 includes a three-dimensional base plate 1613a connected to the three-dimensional drive unit 1612 and generally circular, and a plurality of three-dimensional positioning blocks 1613b spaced circumferentially along the base plate 1613a. Each three-dimensional positioning block 1613b is generally strip-shaped and has a plurality of three-dimensional bearing grooves 1613c. The plurality of three-dimensional bearing grooves 1613c are spaced circumferentially along the length direction of the three-dimensional positioning block 1613b. Each three-dimensional positioning block 1613b positions a product 200. Each three-dimensional bearing groove 1613c passes through the three-dimensional positioning block 1613b along the rotation axis of the three-dimensional turntable 1613. The holding drive unit 1614 drives the holding member 1615 to press the product 200 into the three-dimensional bearing groove 1613c.

[0074] In this embodiment, there are three three-dimensional positioning blocks 1613b. The three three-dimensional positioning blocks 1613b are equally spaced along the circumference of the three-dimensional base plate 1613a. Each three-dimensional positioning block 1613b is provided with five three-dimensional bearing grooves 1613c. The five three-dimensional bearing grooves 1613c are equally spaced along the length direction of the three-dimensional positioning block 1613b.

[0075] Furthermore, each of the three-dimensional support grooves 1613c has a second floating member 1616 at each of its opposite ends. Each second floating member 1616 includes a second elastic body 1616a embedded in the three-dimensional positioning block 1613b and a second positioning body 1616b embedded in the three-dimensional positioning block 1613b and abutting against the second elastic body 1616a. The end of the second elastic body 1616a away from the second positioning body 1616b abuts against the three-dimensional base plate 1613a, and the end of the second positioning body 1616b away from the second elastic body 1616a protrudes from the three-dimensional positioning block 1613b to guide the product 200 to be accommodated in the three-dimensional support groove 1613c. The two second floating members 1616 can evenly float and guide the product 200 to the corresponding three-dimensional support groove 1613c to avoid collision with the product 200. For example, the second elastic body 1616a can be a spring.

[0076] Furthermore, the abutment 1615 includes a generally cuboid fixed body 1615a connected to one end of the pressing drive 1614, a reset body 1615b embedded in the fixed body 1615a, and an abutment 1615c with one end embedded in the fixed body 1615a and abutting the reset body 1615b. The end of the abutment 1615c away from the reset body 1615b protrudes from the fixed body 1615a to press the product 200 into the three-dimensional bearing groove 1613c. The reset body 1615b can elastically abut the abutment 1615c, allowing the abutment 1615c to elastically press the product 200 into the three-dimensional bearing groove 1613c, thereby preventing collision with the product 200.

[0077] Please see Figure 2 and Figure 9 The stereoscopic inspection mechanism 160 also includes a stereoscopic support 162 disposed on the frame 110, a first stereoscopic seat 163 slidably connected to the stereoscopic support 162, a first stereoscopic translation member 164 supported on the stereoscopic support 162 and connected to one end of the first stereoscopic seat 163, a second stereoscopic translation member 165 horizontally disposed on the first stereoscopic seat 163, a second stereoscopic seat 166 connected to the second stereoscopic translation member 165, two stereoscopic image acquisition members 167 disposed on the second stereoscopic seat 166 and located on the upper and lower sides of the stereoscopic turntable 1613, and a stereoscopic processor (not shown) electrically connected to the two stereoscopic image acquisition members 167. The first stereoscopic translation component 164 drives the first stereoscopic base 163 to slide along the stereoscopic support 162, and the second stereoscopic translation component 165 drives the second stereoscopic base 166 to move. The two stereoscopic imaging components 167 are positioned facing each other to acquire the first stereoscopic image of the first surface 200a and the second stereoscopic image of the second surface 200b of the product 200, respectively. The stereoscopic processor determines whether the position of the spring 220 relative to the workpiece 210 meets the preset stereoscopic requirements based on the first stereoscopic image, the second stereoscopic image and the preset stereoscopic parameters.

[0078] In this embodiment, both the first three-dimensional translation member 164 and the second three-dimensional translation member 165 can be stepper motors.

[0079] It should be noted that the aforementioned first stereoscopic image refers to a stereoscopic image of product 200 obtained above the first surface 200a of product 200, and the aforementioned second stereoscopic image refers to a stereoscopic image of product 200 obtained below the second surface 200b of product 200. The preset stereoscopic parameters include the vertical error range of the spring 220 relative to the workpiece 210, where the vertical error range refers to the error range of the position of the spring 220 relative to the workpiece 210 along the thickness direction of the workpiece 210. If the stereoscopic detection mechanism 160 detects that the distance between the spring 220 and the workpiece 210 along the thickness direction of the workpiece 210 in product 200 is within the vertical error range, it indicates that product 200 meets the preset stereoscopic requirements; otherwise, it indicates that product 200 does not meet the preset stereoscopic requirements. Product 200 that meets the preset stereoscopic requirements can then be loaded.

[0080] The working process of the above-mentioned welding inspection device 100 is roughly as follows:

[0081] First, the feeding drive unit 122 drives the feeding turntable 123 to move the feeding fixture 124, which is loaded with workpiece 210 and spring 220, to the welding mechanism 130. The welding mechanism 130 welds the workpiece 210 and spring 220 on the feeding fixture 124 to form product 200.

[0082] Secondly, the feeding drive unit 122 drives the feeding turntable 123 to move the product 200 from the welding mechanism 130 to the unloading mechanism 140. The unloading image acquisition unit 144 moves to above the product 200 under the combined action of the unloading translation unit 142 and the unloading lifting unit 143 to obtain a welding image of the first surface 200a of the product 200. The unloading processor judges whether the product 200 meets the preset welding requirements based on the welding image and preset welding parameters.

[0083] Then, the transfer mechanism 170 transfers the product 200 that meets the preset welding requirements to the planar bearing groove 1513c. The planar rotating component 1512 drives the planar turntable 1513 to rotate the product 200 between the two planar imaging components 155. The two planar imaging components 155 respectively acquire the first planar image of the first surface 200a and the second planar image of the second surface 200b of the product 200. The planar processor determines whether the position of the spring piece 220 in the product 200 relative to the workpiece 210 meets the preset planar requirements based on the first planar image, the second planar image and the preset planar parameters.

[0084] Finally, the transfer mechanism 170 transfers the product 200 that meets the preset planar requirements from the planar support groove 1513c to the three-dimensional support groove 1613c. The three-dimensional drive component 1612 drives the three-dimensional turntable 1613 to rotate the product 200 between the two three-dimensional imaging components 167. The two three-dimensional imaging components 167 respectively acquire the first three-dimensional image of the first surface 200a and the second three-dimensional image of the second surface 200b of the product 200. The three-dimensional processor determines whether the position of the spring piece 220 relative to the workpiece 210 meets the preset three-dimensional requirements based on the first three-dimensional image, the second three-dimensional image and the preset three-dimensional parameters, and loads the product 200 that meets the preset three-dimensional requirements through the transfer mechanism 170.

[0085] In the aforementioned welding inspection device 100, the feeding mechanism 120, welding mechanism 130, unloading mechanism 140, planar inspection mechanism 150, and three-dimensional inspection mechanism 160 can continuously complete the feeding of workpiece 210 and spring 220, the welding of workpiece 210 and spring 220, the inspection of weld 200c in product 200, the detection of the position difference between spring 220 and workpiece 210 in product 200, and the detection of the distance between spring 220 and workpiece 210 in product 200. By using an unloading processor with an unloading image acquisition device 144, a planar processor with a planar image acquisition device 155, and a three-dimensional processor with a three-dimensional image acquisition device 167, the inspection error that occurs during the inspection process can be reduced, thereby improving the inspection accuracy of product 200.

[0086] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be incorporated into this invention.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model.

Claims

1. A welding inspection device, characterized in that, include: The feeding mechanism has adjacent welding positions and unloading positions on its periphery. The feeding mechanism conveys workpieces and springs through the welding positions and the unloading positions in sequence. A welding mechanism is provided at the welding position and welds the spring and the workpiece to form a product, wherein the spring is connected to one side of the workpiece by a weld and bends and extends to the other side of the product, wherein the surface on the same side as the weld is defined as the first surface of the product, and the surface opposite to the first surface of the product is defined as the second surface of the product. The unloading mechanism is located at the unloading position and includes an unloading image acquisition device and an unloading processor electrically connected to the unloading image acquisition device. The unloading image acquisition device acquires a welding image of the first surface of the product, and the unloading processor determines whether the product meets the preset welding requirements based on the welding image and preset welding parameters. A planar inspection mechanism is disposed adjacent to the unloading mechanism and includes two planar image acquisition elements and a planar processor electrically connected to the two planar image acquisition elements respectively. The two planar image acquisition elements respectively acquire a first planar image of a first surface of the product and a second planar image of a second surface of the product. The planar processor determines whether the position of the spring relative to the workpiece conforms to the preset planar requirements based on the first planar image, the second planar image and preset planar parameters. A 3D inspection mechanism is disposed adjacent to the planar inspection mechanism and includes two 3D imaging elements and a 3D processor electrically connected to the two 3D imaging elements respectively. The two 3D imaging elements respectively acquire a first 3D image of a first surface and a second 3D image of a second surface of the product. The 3D processor determines whether the position of the spring relative to the workpiece meets the preset 3D requirements based on the first 3D image, the second 3D image and preset 3D parameters. A transfer mechanism is disposed adjacent to the planar inspection mechanism to move the product that meets the preset welding requirements to the planar inspection mechanism, and also to move the product that meets the preset planar requirements to the three-dimensional inspection mechanism.

2. The welding inspection device as described in claim 1, characterized in that, The feeding mechanism includes: Feeding support; A feeding drive component is disposed on the feeding bracket; A feeding turntable is connected to the feeding drive unit to rotate under the drive of the feeding drive unit. The welding position and the unloading position are located on the periphery of the feeding turntable and are spaced apart along the rotation direction of the feeding turntable. A feeding fixture is provided on the feeding turntable to carry multiple workpieces and multiple springs.

3. The welding inspection device as described in claim 2, characterized in that, The feeding mechanism also includes: Material feeding bracket; A material feeding and translation component is provided on the material feeding bracket; A material feeding lifting component is connected to the material feeding translation component to move horizontally under the drive of the material feeding translation component. The material feeding lifting component is connected to the material feeding image taking component to drive the material feeding image taking component to move closer to or away from the material feeding turntable.

4. The welding inspection device as described in claim 1, characterized in that, The planar detection mechanism also includes: Planar support; A planar translation component is provided on the planar support; A planar base is connected to the planar translation component, so as to move horizontally under the drive of the planar translation component. Two planar image-taking components are respectively connected to the upper and lower ends of the planar base, and the image-taking sides of the two planar image-taking components are arranged facing each other. An upper planar light source, connected to the planar base, illuminates the first surface of the product located between the two planar image-taking elements; A lower planar light source is connected to the planar base and positioned opposite to the upper planar light source to illuminate the second surface of the product located between the two planar imaging elements.

5. The welding inspection device as described in claim 4, characterized in that, The planar detection mechanism also includes: A planar support assembly includes a planar base, a planar rotating component, and a planar turntable. The planar rotating component is disposed on the planar base and connected to the planar turntable to drive the planar turntable to rotate. The planar turntable extends between two planar image-taking components and has multiple planar support grooves. The multiple planar support grooves are spaced apart along the rotation direction of the planar turntable to position multiple products. Each planar support groove passes through the planar turntable along its axial direction.

6. The welding inspection device as described in claim 5, characterized in that, Each of the planar support grooves is provided with a first floating member on each of its opposite sides. Each first floating member includes a first elastic body and a first positioning body. The first elastic body is embedded in the planar turntable. One end of the first positioning body is embedded in the planar turntable and abuts against the first elastic body. The other end of the first positioning body protrudes from the planar turntable to guide the product to be accommodated in the planar support groove.

7. The welding inspection device as described in claim 1, characterized in that, The three-dimensional detection mechanism also includes: A stereo positioning assembly includes a stereo base, a stereo drive, a stereo turntable, a pressing drive, and a supporting member. The stereo drive is disposed on the stereo base and connected to the stereo turntable to drive the stereo turntable to rotate. The stereo turntable extends between two stereo imaging elements and has multiple stereo bearing grooves. The multiple stereo bearing grooves are spaced apart along the rotation direction of the stereo turntable to position multiple products. Each stereo bearing groove passes through the stereo turntable along its axial direction. The pressing drive is connected to the stereo base and the supporting member to drive the supporting member to press the product into the stereo bearing groove.

8. The welding inspection device as described in claim 7, characterized in that, Each of the three-dimensional support grooves is provided with a second floating member at each of its opposite ends. Each second floating member includes a second elastic body and a second positioning body. The second elastic body is embedded in the three-dimensional turntable. One end of the second positioning body is embedded in the three-dimensional turntable and abuts against the second elastic body. The other end of the second positioning body protrudes from the three-dimensional turntable to guide the product to be accommodated in the three-dimensional support groove. The supporting member includes a fixing body, a supporting body, and a resetting body. The fixing body is connected to the pressing drive member. The resetting body is embedded in the fixing body. One end of the supporting body is embedded in the fixing body and abuts against the resetting body. The other end of the supporting body protrudes from the fixing body to press the product into the three-dimensional bearing groove.

9. The welding inspection device as described in claim 7, characterized in that, The three-dimensional detection mechanism also includes: 3D support structure; The first three-dimensional base is slidably connected to the three-dimensional support; A first three-dimensional translation component is disposed on the three-dimensional support and connected to the first three-dimensional seat to drive the first three-dimensional seat to slide along the three-dimensional support; The second three-dimensional translation component is disposed on the first three-dimensional base; The second stereoscopic base is connected to the second stereoscopic translation member so as to move under the drive of the second stereoscopic translation member, and the two stereoscopic imaging members are respectively disposed on the second stereoscopic base; The sliding direction of the first three-dimensional seat is perpendicular to the moving direction of the second three-dimensional seat.

10. The welding inspection device as described in claim 1, characterized in that, The transfer mechanism includes: Transfer drive components; A connector, which connects to the transfer drive unit to move under the drive of the transfer drive unit; An adsorption element, connected to the connector, to adsorb the product; An elastic element, the two ends of which elastically abut against the connector and the adsorption element, respectively.

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