Positioning device and welding equipment

Abstract

A positioning device is used for positioning a first workpiece and a second workpiece and comprises a machine frame, a positioning device, a first positioning device and a second positioning device, the machine frame comprises a bearing plate and a vacuum suction cup, the bearing plate is used for supporting the first workpiece and the second workpiece, and the vacuum suction cup is used for adsorbing the second workpiece; each positioning assembly comprises a positioning piece and a positioning driving piece and is used for positioning the first workpiece; the pressing assemblies comprise pressing driving parts and pressing parts, and the pressing driving parts drive the pressing parts to press the first workpiece on the bearing plate; the multiple sets of material pressing assemblies are all connected to the bearing plate, and the material pressing assemblies are used for pressing the connecting position of the first workpiece and the second workpiece; and the controller is arranged on the rack and used for controlling the multiple sets of material pressing assemblies to sequentially loosen and press the connecting position of the first workpiece and the second workpiece. The welding equipment comprises the positioning device and the welding device. The positioning device is matched with a positioning assembly, a pressing assembly and a material pressing assembly in the welding equipment so that the first workpiece and the second workpiece can be stably positioned.

Description

Technical Field

[0001] The present application relates to the technical field of industrial welding, and in particular to a positioning device and welding equipment. Background Art

[0002] As a key technology for connecting metal workpieces, welding plays a vital role in modern manufacturing. Common welding methods include arc welding, laser welding and friction welding. Especially for the welding of materials such as aluminum and aluminum alloys, friction welding is usually one of the more preferred technologies in the industry. Friction welding is a solid-state welding method that uses the heat generated by friction between the contact surfaces of the workpieces to cause the workpieces to undergo plastic deformation and flow under pressure, thereby achieving a firm connection between the two parts. Compared with other welding methods, friction welding has a smaller heat-affected zone, so the quality of the welded joint is higher, and the strength of the weld is comparable to that of the base material.

[0003] However, during the friction welding operation, the friction between the workpieces may cause the workpieces to shift, which may reduce the welding accuracy. Therefore, how to effectively fix the workpieces to be welded to ensure the stability of the welding process and the accuracy of the welding results is a difficult problem that needs to be overcome in the current welding technology field. Utility Model Content

[0004] In view of the above, it is necessary to propose a positioning device and a welding device that can provide stable positioning for the workpiece to improve the accuracy and stability of welding.

[0005] The embodiment of the present application provides a positioning device for positioning a first workpiece and a second workpiece, comprising: a frame, comprising a carrying plate and a vacuum suction cup arranged on the carrying plate, the carrying plate being used to support the first workpiece and the second workpiece, and the vacuum suction cup being used to adsorb the second workpiece; two groups of positioning components, each group of the positioning components comprising a positioning member and a positioning drive member, wherein the positioning members and the positioning drive member of one group of the positioning components are respectively arranged on opposite sides of the vacuum suction cup, and the positioning members and the positioning drive member of the other group of the positioning components are respectively arranged on other opposite sides of the vacuum suction cup, and the positioning drive member pushes the first workpiece to the positioning members of the same group to position the first workpiece; a plurality of groups of clamping components, evenly distributed around the vacuum suction cup and spaced apart from the two groups of the positioning components The invention relates to a device for producing a plurality of pressing assemblies, wherein each group of the pressing assemblies comprises a pressing driving member and a pressing member, wherein the pressing driving member is connected to the carrying plate, and the pressing member is connected to the pressing driving member, and the pressing driving member drives the pressing member to rotate close to the first workpiece so as to press the first workpiece against the carrying plate; a plurality of groups of pressing assemblies, each of which is connected to the carrying plate and evenly distributed around the vacuum suction cup, and is spaced apart from the two groups of positioning assemblies and the plurality of groups of pressing assemblies, and each group of the pressing assemblies is used to press the connection between the first workpiece and the second workpiece; and a controller, which is arranged on the frame, wherein the controller is electrically connected to the two groups of positioning assemblies, the plurality of groups of pressing assemblies and the plurality of groups of pressing assemblies, and the controller is used to control the plurality of groups of pressing assemblies to release and press the connection between the first workpiece and the second workpiece in sequence.

[0006] The positioning device can support the first workpiece and the second workpiece through the frame, can position the first workpiece on the horizontal plane through two sets of positioning components, can hold the first workpiece through multiple clamping components to position the first workpiece on the vertical plane, so as to improve the stability of the positioning of the first workpiece; can adsorb the second workpiece through the vacuum suction cup, prevent the second workpiece from deforming while positioning the second workpiece, and improve the stability of the positioning of the second workpiece; can hold the connection between the first workpiece and the second workpiece through multiple pressing components, and further improve the stability of the positioning of the first workpiece and the second workpiece. The controller can control multiple pressing components to release and hold the connection between the first workpiece and the second workpiece in sequence, so that when other equipment processes the connection between the first workpiece and the second workpiece, the controller controls the pressing components at the corresponding position to release the connection between the first workpiece and the second workpiece to avoid the position, and after the processing is completed, the pressing components at the processing completion position are controlled to hold the connection between the first workpiece and the second workpiece, so as to improve the stability of the position of the first workpiece and the second workpiece during the processing process.

[0007] In some embodiments, the press assembly includes a press driving member and a first press member connected to the press driving member, the press driving member is connected to the supporting plate, and the press driving member drives the first press member to rotate and approach the first workpiece and the second workpiece to press the connection between the first workpiece and the second workpiece.

[0008] In some embodiments, the pressing assembly also includes a first positioning pin, which is connected to a side of the pressing driving member close to the first pressing member, and the first pressing member is provided with a first positioning hole. When the pressing driving member drives the first pressing member to press the connection between the first workpiece and the second workpiece, the first positioning pin is inserted into the first positioning hole to position the first pressing member.

[0009] In some embodiments, the pressing assembly includes a support frame, a telescopic driving member, a rack, a gear and a second pressing member, the support frame is connected to the supporting plate, the telescopic driving member is connected to the support frame, the rack is connected to the telescopic driving member, the gear is connected to the support frame and meshes with the rack, the second pressing member is rotatably connected to the support frame and coaxially connected to the gear, the telescopic driving member drives the gear to rotate through the rack, and then drives the second pressing member to rotate and approach the first workpiece and the second workpiece to press the connection between the first workpiece and the second workpiece.

[0010] In some embodiments, the frame further includes a first position sensor connected to the supporting plate, wherein the first position sensor is electrically connected to the controller and is used to detect the position of the first workpiece.

[0011] In some embodiments, the frame further includes a plurality of second position sensors, which are all disposed in the vacuum suction cup and electrically connected to the controller, and are used to detect the position of the second workpiece.

[0012] In some embodiments, the clamping assembly also includes a second positioning pin, which is connected to a side of the clamping drive member close to the clamping member, and the clamping member is provided with a second positioning hole. When the clamping drive member drives the clamping member to press the first workpiece, the second positioning pin is inserted into the second positioning hole to position the clamping member.

[0013] In some embodiments, the clamping assembly also includes a supporting block, which is connected to one end of the clamping member away from the clamping driving member and to a side of the clamping member facing the supporting plate. A clamping groove is provided at one end of the clamping block away from the clamping member, and the clamping groove is used to clamp the first workpiece.

[0014] In some embodiments, one end of the first pressing member and the second pressing member for pressing the first workpiece and the second workpiece is provided with a flexible member, and the flexible member is used to flexibly abut against the first workpiece and the second workpiece.

[0015] An embodiment of the present application also provides a welding device, comprising: a positioning device and a welding device as described in the above-mentioned embodiment, wherein the welding device is arranged close to the positioning device and is used to weld a first workpiece and a second workpiece positioned by the positioning device, wherein when the welding device approaches a group of the pressing assemblies, the controller controls the pressing assembly to release the connection between the first workpiece and the second workpiece, and when the welding device passes through the pressing assembly and approaches the next group of the pressing assemblies, the controller controls the pressing assembly to press the connection between the first workpiece and the second workpiece again.

[0016] In the above welding equipment, the first workpiece and the second workpiece can be fixed by the positioning device, and the first workpiece and the second workpiece can be welded by the welding device. During welding, when the welding device is close to a pressing component, the controller controls the pressing component to release the connection between the first workpiece and the second workpiece to avoid the welding device. After the welding device completes welding at the position corresponding to the pressing position of the pressing component, the controller controls the pressing component to press the connection between the first workpiece and the second workpiece. During the welding process, the controller controls multiple pressing components to sequentially release and press the connection between the first workpiece and the second workpiece to improve the stability of positioning the first workpiece and the second workpiece, thereby improving the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of a positioning device provided in an embodiment of the present application.

[0018] Figure 2 for Figure 1 An exploded schematic diagram of the positioning device, the first workpiece and the second workpiece is shown.

[0019] Figure 3 for Figure 1 A schematic structural diagram of the clamping assembly of the positioning device is shown.

[0020] Figure 4 for Figure 1 A schematic structural diagram of an embodiment of a material pressing assembly of a positioning device is shown.

[0021] Figure 5 for Figure 1 A schematic structural diagram of another embodiment of a material pressing assembly of a positioning device is shown.

[0022] Figure 6 A schematic diagram of the structure of the welding equipment provided in an embodiment of the present application.

[0023] Main component symbols

[0024] Welding equipment 1000

[0025] Positioning device 100

[0026] Rack 10

[0027] Loading plate 11

[0028] Vacuum suction cup 12

[0029] First position sensor 13

[0030] Second position sensor 14

[0031] Positioning component 20

[0032] Positioning piece 21

[0033] Positioning drive 22

[0034] Clamping assembly 30

[0035] Press drive 31

[0036] Pressing piece 32

[0037] The second positioning hole 321

[0038] Second positioning pin 33

[0039] Abutment block 34

[0040] Card slot 341

[0041] Pressing component 40

[0042] Press drive 41

[0043] First pressing piece 42

[0044] First positioning hole 421

[0045] Support frame 43

[0046] Telescopic drive member 44

[0047] Rack 45

[0048] Gear 46

[0049] Second pressing member 47

[0050] First positioning pin 48

[0051] Flexible parts 49

[0052] Controller 50

[0053] Welding device 200

[0054] First workpiece 300

[0055] Second workpiece 400 DETAILED DESCRIPTION

[0056] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0057] In the description of the present application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, in the description of the present application, it should be noted that the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0058] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the term "connection" 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 mechanical connection, an electrical connection, or mutual communication, it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. Some embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0059] The embodiments of the present application are further described below in conjunction with the accompanying drawings.

[0060] See also Figure 1 and Figure 2 The embodiment of the present application provides a positioning device 100 for positioning a first workpiece 300 and a second workpiece 400. The first workpiece 300 may be a square-shaped frame structure such as an aluminum frame, and the second workpiece 400 may be a plate-shaped structure such as an aluminum sheet. When positioning, the second workpiece 400 is placed in the first workpiece 300. It can be understood that the peripheral side of the second workpiece 400 abuts against the first workpiece 300. The positioning device 100 includes a frame 10, two sets of positioning components 20, a plurality of clamping components 30, and a plurality of pressing components 40.

[0061] Specifically, see Figure 1 and Figure 2 The frame 10 includes a carrier plate 11 and a vacuum suction cup 12 disposed on the carrier plate 11. The carrier plate 11 is used to support the first workpiece 300 and the second workpiece 400, and the vacuum suction cup 12 is used to adsorb the second workpiece 400. The frame 10 can be a structure such as a workbench, and is provided with a carrier plate 11. It can be understood that the carrier plate 11 is arranged on a horizontal plane to facilitate supporting the first workpiece 300 and the second workpiece 400. The contact area between the vacuum suction cup 12 and the second workpiece 400 is large, which improves the stability of adsorption of the second workpiece 400. The vacuum suction cup 12 is connected to an external exhaust device (not shown) to exhaust the vacuum suction cup 12 when the second workpiece 400 is placed on the carrier plate 11, so that the vacuum suction cup 12 generates negative pressure, and then the vacuum suction cup 12 adsorbs the second workpiece 400.

[0062] Each group of positioning components 20 includes a positioning member 21 and a positioning driver 22, wherein the positioning members 21 and the positioning driver 22 of one group of positioning components 20 are respectively arranged on opposite sides of the vacuum suction cup 12, and the positioning members 21 and the positioning driver 22 of another group of positioning components 20 are respectively arranged on the other opposite sides of the vacuum suction cup 12, and the positioning driver 22 pushes the first workpiece 300 to the positioning member 21 of the same group to position the first workpiece 300. The positioning member 21 can be a block structure, and the positioning driver 22 can be a cylinder, etc. Each group of positioning components 20 can be provided with a plurality of positioning members 21 and a plurality of positioning drivers 22. The positioning members 21 in each group of positioning components 20 can be provided with two, three, four, etc. The specific number and position of the positioning members 21 can be set according to actual needs, so that the positioning members 21 on each side are located on the same straight line, which is not limited here. The number of each group of positioning drivers 22 can be two, three, four, etc., which is not limited here. It can be understood that when the first workpiece 300 is placed on the supporting plate 11, the positioning drive member 22 located on the same side of the vacuum suction cup 12 pushes the first workpiece 300 to move until the first workpiece 300 abuts against the positioning member 21 on the other side opposite to the side. In this way, the first workpiece 300 can be positioned on a horizontal plane through two sets of positioning components 20.

[0063] Please also see Figure 3, multiple groups of clamping assemblies 30 are evenly distributed around the vacuum suction cup 12 and are spaced apart from the two groups of positioning assemblies 20. Each group of clamping assemblies 30 includes a clamping driver 31 and a clamping member 32. The clamping driver 31 is connected to the carrier plate 11, and the clamping member 32 is connected to the clamping driver 31. The clamping driver 31 drives the clamping member 32 to rotate close to the first workpiece 300 to hold the first workpiece 300 on the carrier plate 11. The clamping driver 31 can be a rotary telescopic cylinder, and the clamping member 32 can be a rod-shaped structure. Before placing the first workpiece 300 on the carrier plate 11, the clamping driver 31 drives the clamping member 32 to move away from the carrier plate 11, and drives the clamping member 32 to rotate away from the vacuum suction cup 12, so as to facilitate the placement of the first workpiece 300 on the carrier plate 11. After the first workpiece 300 is placed and positioned by the positioning assembly 20, the clamping driving member 31 drives the clamping member 32 to rotate above the first workpiece 300, and then drives the clamping member 32 to move toward the first workpiece 300, so that the clamping member 32 presses the first workpiece 300, and completes the vertical positioning of the first workpiece 300. The clamping assembly 30 can be provided with two, three, four, etc., as long as it can stably press the first workpiece 300.

[0064] Please also see Figure 4 and Figure 5 , multiple groups of pressing components 40 are connected to the carrier plate 11 and are evenly distributed around the vacuum chuck 12, and are spaced apart from the two groups of positioning components 20 and multiple groups of clamping components 30, and each group of pressing components 40 is used to press the connection between the first workpiece 300 and the second workpiece 400. The pressing components 40 can be provided with four groups, eight groups, twelve groups, etc., and are evenly distributed around the vacuum chuck 12, and can stably press the connection between the first workpiece 300 and the second workpiece 400, and the specific number and position are not limited here.

[0065] The controller 50 is disposed on the frame 10, and the controller 50 is electrically connected to the two sets of positioning components 20, the multiple sets of clamping components 30, and the multiple sets of pressing components 40. The controller 50 is used to control the multiple sets of pressing components 40 to sequentially release and press the connection between the first workpiece 300 and the second workpiece 400. The controller 50 can be a microprocessor, a computer, etc. By setting the controller 50, the operation of the positioning component 20, the clamping component 30, and the pressing component 40 can be controlled, which is conducive to improving the automation of the equipment. The controller 50 can control the multiple sets of pressing components 40 to sequentially release and press the connection between the first workpiece 300 and the second workpiece 400, which is conducive to improving the positioning stability when processing the first workpiece 300 and the second workpiece 400.

[0066] The positioning device 100 provided in the embodiment of the present application can support the first workpiece 300 and the second workpiece 400 through the frame 10, can position the first workpiece 300 on the horizontal plane through two groups of positioning components 20, and can hold the first workpiece 300 through multiple clamping components 30 to position the first workpiece 300 on the vertical plane, thereby improving the stability of the positioning of the first workpiece 300; the second workpiece 400 can be adsorbed through the vacuum suction cup 12, and while positioning the second workpiece 400, the second workpiece 400 is prevented from being deformed, thereby improving the stability of the positioning of the second workpiece 400; the connection between the first workpiece 300 and the second workpiece 400 can be held by multiple pressing components 40, thereby further improving the stability of the positioning of the first workpiece 300 and the second workpiece 400. The controller 50 can control multiple pressing assemblies 40 to sequentially loosen and press the connection between the first workpiece 300 and the second workpiece 400, so that when other equipment is processing the connection between the first workpiece 300 and the second workpiece 400, the controller 50 controls the pressing assemblies 40 at the corresponding positions to loosen the connection between the first workpiece 300 and the second workpiece 400 for avoidance, and after the processing is completed, controls the pressing assemblies 40 at the processing completion position to press the connection between the first workpiece 300 and the second workpiece 400, thereby improving the stability of the positions of the first workpiece 300 and the second workpiece 400 during the processing process.

[0067] In some embodiments, see Figure 1 , Figure 2 and Figure 4 The pressing assembly 40 includes a pressing driving member 41 and a first pressing member 42 connected to the pressing driving member 41. The pressing driving member 41 is connected to the supporting plate 11. The pressing driving member 41 drives the first pressing member 42 to rotate and approach the first workpiece 300 and the second workpiece 400 to press the connection between the first workpiece 300 and the second workpiece 400.

[0068] The material pressing driving member 41 may be a rotating telescopic cylinder, and the first material pressing member 42 may be an L-shaped structure. Before placing the first workpiece 300 and the second workpiece 400 on the carrier plate 11, the material pressing driving member 41 drives the first material pressing member 42 to move away from the carrier plate 11, and drives the first material pressing member 42 to rotate away from the vacuum suction cup 12, so as to facilitate the placement of the first workpiece 300 and the second workpiece 400 on the carrier plate 11. After the first workpiece 300 and the second workpiece 400 are placed, the material pressing driving member 41 drives the first material pressing member 42 to rotate to the top of the first workpiece 300 and the second workpiece 400, and then drives the first material pressing member 42 to move to the connection between the first workpiece 300 and the second workpiece 400, so as to make the first material pressing member 42 press the connection between the first workpiece 300 and the second workpiece 400, and complete the positioning of the first workpiece 300 and the second workpiece 400 in the vertical direction.

[0069] In some embodiments, see Figure 2 and Figure 4 The press assembly 40 further includes a first positioning pin 48, which is connected to a side of the press drive 41 close to the first press 42. The first press 42 is provided with a first positioning hole 421. When the press drive 41 drives the first press 42 to press the connection between the first workpiece 300 and the second workpiece 400, the first positioning pin 48 is inserted into the first positioning hole 421 to position the first press 42. The first positioning pin 48 may be a columnar structure, and the aperture of the first positioning hole 421 is the same as the outer diameter of the first positioning pin 48. When the press drive 41 drives the first press 42 to move toward the second workpiece 400, the first positioning pin 48 may be inserted into the first positioning hole 421, thereby positioning the first press 42 and improving the positioning accuracy of the first press 42.

[0070] In some embodiments, see Figure 1 , Figure 2 and Figure 5 The pressing assembly 40 includes a support frame 43, a telescopic driving member 44, a rack 45, a gear 46 and a second pressing member 47. The support frame 43 is connected to the supporting plate 11, the telescopic driving member 44 is connected to the support frame 43, the rack 45 is connected to the telescopic driving member 44, the gear 46 is connected to the support frame 43 and meshes with the rack 45, the second pressing member 47 is rotatably connected to the support frame 43 and is coaxially connected to the gear 46, the telescopic driving member 44 drives the gear 46 to rotate through the rack 45, and then drives the second pressing member 47 to rotate and approach the first workpiece 300 and the second workpiece 400 to press the connection between the first workpiece 300 and the second workpiece 400.

[0071] The telescopic driving member 44 may be a telescopic cylinder, and the second pressing member 47 may be an L-shaped structure. Before placing the first workpiece 300 and the second workpiece 400 on the carrier plate 11, the telescopic driving member 44 drives the rack 45 to move, the rack 45 drives the gear 46 to rotate, and the gear 46 drives the second pressing member 47 to rotate away from the carrier plate 11, so as to facilitate the placement of the first workpiece 300 and the second workpiece 400 on the carrier plate 11. After the first workpiece 300 and the second workpiece 400 are placed, the telescopic driving member 44 drives the rack 45 to move, the rack 45 drives the gear 46 to rotate, and the gear 46 drives the second pressing member 47 to move toward the first workpiece 300 and the second workpiece 400, so that the second pressing member 47 presses the connection between the first workpiece 300 and the second workpiece 400, and completes the positioning of the first workpiece 300 and the second workpiece 400 in the vertical direction.

[0072] It can be understood that the pressing assembly 40 on the carrier plate 11 can be composed entirely of a pressing drive member 41 and a first pressing member 42, or entirely of a telescopic driving member 44, a rack 45, a gear 46 and a second pressing member 47, or both pressing assemblies 40 are provided, which is not limited here. It can be understood that the pressing assembly 40 is provided around the vacuum suction cup 12, and the number of pressing assemblies 40 corresponding to each side of the vacuum suction cup 12 can be two, three, four, etc., depending on actual needs, and can stably hold the first workpiece 300 and the second workpiece 400, which is not limited here. The pressing assembly 40 and the positioning assembly 20 and the clamping assembly 30 are spaced apart to avoid mutual influence.

[0073] In some embodiments, see Figure 1 and Figure 2 The frame 10 further includes a first position sensor 13 connected to the carrier plate 11, and the first position sensor 13 is electrically connected to the controller 50 for detecting the position of the first workpiece 300. The first position sensor 13 may be a proximity switch, etc. It can be understood that the first position sensor 13 is connected to the carrier plate 11 for supporting the position of the first workpiece 300, so that the first workpiece 300 can be detected after the first workpiece 300 is placed on the carrier plate 11. After the first position sensor 13 obtains the position information of the first workpiece 300, it sends a signal corresponding to the position information to the controller 50, and the controller 50 controls the positioning drive member 22 of the positioning assembly 20 to move, thereby pushing the first workpiece 300 to the corresponding positioning member 21, so as to position the first workpiece 300 on the horizontal plane. It can be understood that when the first workpiece 300 is placed on the supporting plate 11 but does not completely contact the supporting plate 11, if there is a foreign object supporting the first workpiece 300, the first position sensor 13 cannot detect the first workpiece 300. At this time, the position of the first workpiece 300 needs to be corrected to avoid the first workpiece 300 being improperly placed, resulting in poor subsequent positioning and processing.

[0074] In some embodiments, see Figure 1 and Figure 2The rack 10 further includes a plurality of second position sensors 14, which are all disposed in the vacuum chuck 12 and are all electrically connected to the controller 50. The plurality of second position sensors 14 are used to detect the position of the second workpiece 400. The second position sensor 14 may be a proximity switch, etc. After the second workpiece 400 is placed, the second position sensor 14 may detect the position of the second workpiece 400, thereby realizing accurate detection of the position of the second workpiece 400, improving positioning accuracy, and ensuring the accuracy of assembly of the second workpiece 400. The second position sensors 14 may be provided with four, five, six, etc. It can be understood that when the second workpiece 400 is a plate-like structure, when the second workpiece 400 is placed in the first workpiece 300, a part of the second workpiece 400 may be in contact with the first workpiece 300, and another part may be lifted up without contacting the first workpiece 300. Thus, by providing a plurality of second position sensors 14, multiple positions of the second workpiece 400 may be detected, further improving positioning accuracy. When the second position sensor 14 detects the second workpiece 400 , it sends a signal to the controller 50 . The controller 50 controls the vacuum chuck 12 to work, thereby absorbing the second workpiece 400 and improving the stability of the second workpiece 400 .

[0075] In some embodiments, see Figure 2 and Figure 3 The clamping assembly 30 further includes a second positioning pin 33, which is connected to a side of the clamping driving member 31 close to the clamping member 32. The clamping member 32 is provided with a second positioning hole 321. When the clamping driving member 31 drives the clamping member 32 to hold the first workpiece 300, the second positioning pin 33 is inserted into the second positioning hole 321 to position the clamping member 32. The second positioning pin 33 may be a columnar structure, and the aperture of the second positioning hole 321 is the same as the outer diameter of the second positioning pin 33. When the clamping driving member 31 drives the clamping member 32 to move toward the first workpiece 300, the second positioning pin 33 may be inserted into the second positioning hole 321, thereby positioning the clamping member 32 and improving the positioning accuracy of the clamping member 32.

[0076] In some embodiments, see Figure 2 and Figure 3The clamping assembly 30 further includes a support block 34, which is connected to one end of the clamping member 32 away from the clamping driving member 31 and to one side of the clamping member 32 facing the carrier plate 11. The end of the support block 34 away from the clamping member 32 is provided with a clamping groove 341, which is used to clamp the first workpiece 300. By providing the support block 34, it is convenient for the clamping assembly 30 to replace different support blocks 34 according to the structure of the first workpiece 300, thereby improving the applicability of the clamping assembly 30, and after being worn out due to repeated use, the support block 34 can be directly replaced, which is conducive to reducing the cost of the clamping assembly 30. The support block 34 can be made of materials such as plastic and urethane to avoid rigid contact between the support block 34 and the first workpiece 300, resulting in damage to the first workpiece 300. By providing the clamping groove 341 on the support block 34, the adaptability of the support block 34 to contact the first workpiece 300 can be improved, thereby improving the stability of the support block 34 in pressing the first workpiece 300.

[0077] In some embodiments, see Figure 1 , Figure 4 and Figure 5 The first pressing piece 42 and the second pressing piece 47 are both provided with a flexible piece 49 at one end for pressing the first workpiece 300 and the second workpiece 400, and the flexible piece 49 is used for flexibly contacting the first workpiece 300 and the second workpiece 400. The material of the flexible piece 49 can be rubber, eutectic rubber, etc. By providing the flexible piece 49, the first pressing piece 42 and the second pressing piece 47 can be prevented from rigidly contacting with the first workpiece 300 and the second workpiece 400, thereby avoiding damage to the first workpiece 300 and the second workpiece 400.

[0078] The working process of the positioning device 100 provided in the embodiment of the present application is roughly as follows:

[0079] First, the first workpiece 300 is placed on the carrier plate 11. After the first position sensor 13 detects the first workpiece 300, it sends a signal to the controller 50. The controller 50 controls the positioning assembly 20 to operate, and the positioning drive 22 pushes the first workpiece 300 to the positioning member 21 to position the first workpiece 300 on the horizontal plane. Then, the plurality of clamping assemblies 30 move, and the clamping drive 31 drives the clamping member 32 to rotate close to the first workpiece 300, and then the clamping member 32 presses the first workpiece 300 to complete the positioning of the first workpiece 300 in the vertical direction.

[0080] Then, the second workpiece 400 is placed on the supporting plate 11 , and the second workpiece 400 is aligned with the vacuum suction cup 12 , and the second workpiece 400 is in contact with the first workpiece 300 . The second position sensor 14 detects the position of the second workpiece 400 , and sends a signal to the controller 50 . The controller 50 controls the vacuum suction cup 12 to adsorb the second workpiece 400 .

[0081] After the vacuum suction cup 12 absorbs the second workpiece 400, the controller 50 controls the material pressing driving member 41 to drive the first material pressing member 42 to rotate to the top of the first workpiece 300 and the second workpiece 400, and then drives the first material pressing member 42 to move toward the connection between the first workpiece 300 and the second workpiece 400, so that the first material pressing member 42 presses the connection between the first workpiece 300 and the second workpiece 400, and completes the positioning of the first workpiece 300 and the second workpiece 400 in the vertical direction. Or the controller 50 controls the telescopic driving member 44 to drive the rack 45 to move, the rack 45 drives the gear 46 to rotate, and the gear 46 drives the second material pressing member 47 to move toward the first workpiece 300 and the second workpiece 400, so that the second material pressing member 47 presses the connection between the first workpiece 300 and the second workpiece 400, and completes the positioning of the first workpiece 300 and the second workpiece 400 in the vertical direction.

[0082] When processing the first workpiece 300 and the second workpiece 400 , the controller 50 further controls the plurality of pressing assemblies 40 to sequentially release and press the connection between the first workpiece 300 and the second workpiece 400 .

[0083] See also Figure 1 and Figure 6 The embodiment of the present application further provides a welding device 1000, which includes the positioning device 100 and the welding device 200. The welding device 200 is arranged near the positioning device 100 and is used to weld the first workpiece 300 and the second workpiece 400 positioned by the positioning device 100. When the welding device 200 approaches a group of pressing components 40, the controller 50 controls the pressing component 40 to release the connection between the first workpiece 300 and the second workpiece 400, and when the welding device 200 passes through the pressing component 40 and approaches the next group of pressing components 40, the controller 50 controls the pressing component 40 to press the connection between the first workpiece 300 and the second workpiece 400 again.

[0084] In one embodiment, the running track of the welding device 200 is recorded in the controller 50, and the welding device 200 runs around the connection position of the first workpiece 300 and the second workpiece 400 in sequence to weld the first workpiece 300 and the second workpiece 400. When the welding device 200 starts welding, the controller 50 controls the first pressing component 40 to release the first workpiece 300 and the second workpiece 400 to avoid the welding device 200. After the welding device 200 passes the first pressing component 40, the first pressing component 40 presses the connection between the first workpiece 300 and the second workpiece 400 again, and the second pressing component 40 releases the first workpiece 300 and the second workpiece 400 to avoid the welding device 200. This is repeated until the welding device 200 completely welds the first workpiece 300 and the second workpiece 400.

[0085] The welding device 1000 provided in the embodiment of the present application can fix the first workpiece 300 and the second workpiece 400 through the positioning device 100, and can weld the first workpiece 300 and the second workpiece 400 through the welding device 200. During welding, when the welding device 200 is close to a pressing component 40, the controller 50 controls the pressing component 40 to release the connection between the first workpiece 300 and the second workpiece 400 to avoid the welding device 200. After the welding device 200 completes welding at the position corresponding to the pressing position of the pressing component 40, the controller 50 controls the pressing component 40 to press the connection between the first workpiece 300 and the second workpiece 400. During the welding process, the controller 50 controls multiple pressing components 40 to sequentially release and press the connection between the first workpiece 300 and the second workpiece 400 to improve the stability of positioning the first workpiece 300 and the second workpiece 400, thereby improving the welding effect.

[0086] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A positioning device for positioning a first workpiece and a second workpiece, characterized in that: include: A frame, comprising a bearing plate and a vacuum suction cup disposed on the bearing plate, wherein the bearing plate is used to support the first workpiece and the second workpiece, and the vacuum suction cup is used to absorb the second workpiece; Two groups of positioning assemblies, each group of the positioning assemblies comprises a positioning member and a positioning driving member, wherein the positioning member and the positioning driving member of one group of the positioning assemblies are respectively arranged on two opposite sides of the vacuum suction cup, and the positioning member and the positioning driving member of the other group of the positioning assemblies are respectively arranged on the other two opposite sides of the vacuum suction cup, and the positioning driving member pushes the first workpiece to the positioning member of the same group to position the first workpiece; A plurality of groups of clamping assemblies are evenly distributed around the vacuum suction cup and are spaced apart from the two groups of positioning assemblies, each group of the clamping assemblies comprises a clamping driving member and a clamping member, the clamping driving member is connected to the carrying plate, the clamping member is connected to the clamping driving member, and the clamping driving member drives the clamping member to rotate close to the first workpiece to hold the first workpiece on the carrying plate; A plurality of groups of pressing components, all connected to the carrier plate and evenly distributed around the vacuum chuck, and spaced apart from the two groups of positioning components and the plurality of groups of clamping components, each group of the pressing components is used to press the connection between the first workpiece and the second workpiece; and A controller is arranged on the frame, and the controller is electrically connected to the two groups of the positioning assemblies, multiple groups of the clamping assemblies and multiple groups of the pressing assemblies. The controller is used to control the multiple groups of the pressing assemblies to release and press the connection between the first workpiece and the second workpiece in sequence.

2. The positioning device according to claim 1, characterized in that The press assembly includes a press driving member and a first press member connected to the press driving member, the press driving member is connected to the supporting plate, and the press driving member drives the first press member to rotate and approach the first workpiece and the second workpiece to press the connection between the first workpiece and the second workpiece.

3. The positioning device according to claim 2, characterized in that: The pressing assembly also includes a first positioning pin, which is connected to a side of the pressing driving member close to the first pressing member. The first pressing member is provided with a first positioning hole. When the pressing driving member drives the first pressing member to press the connection between the first workpiece and the second workpiece, the first positioning pin is inserted into the first positioning hole to position the first pressing member.

4. The positioning device according to claim 2, characterized in that: The pressing assembly includes a support frame, a telescopic driving member, a rack, a gear and a second pressing member. The support frame is connected to the supporting plate, the telescopic driving member is connected to the support frame, the rack is connected to the telescopic driving member, the gear is connected to the support frame and meshes with the rack, the second pressing member is rotatably connected to the support frame and coaxially connected to the gear, the telescopic driving member drives the gear to rotate through the rack, and then drives the second pressing member to rotate and approach the first workpiece and the second workpiece to press the connection between the first workpiece and the second workpiece.

5. The positioning device according to claim 1, characterized in that: The frame further includes a first position sensor connected to the carrying plate. The first position sensor is electrically connected to the controller and is used to detect the position of the first workpiece.

6. The positioning device according to claim 1, characterized in that: The frame further includes a plurality of second position sensors, which are all disposed in the vacuum suction cup and electrically connected to the controller, and are used to detect the position of the second workpiece.

7. The positioning device according to claim 1, characterized in that: The clamping assembly also includes a second positioning pin, which is connected to a side of the clamping drive member close to the clamping member. The clamping member is provided with a second positioning hole. When the clamping drive member drives the clamping member to press the first workpiece, the second positioning pin is inserted into the second positioning hole to position the clamping member.

8. The positioning device according to claim 1, characterized in that: The clamping assembly also includes a supporting block, which is connected to one end of the clamping member away from the clamping drive member and to a side of the clamping member facing the supporting plate. A clamping groove is provided at one end of the supporting block away from the clamping member, and the clamping groove is used to clamp the first workpiece.

9. The positioning device according to claim 4, characterized in that: One end of the first pressing piece and the second pressing piece for pressing the first workpiece and the second workpiece is provided with a flexible piece, and the flexible piece is used for flexibly abutting against the first workpiece and the second workpiece.

10. A welding device, characterized in that: include: A positioning device as claimed in any one of claims 1 to 9; and A welding device is arranged near the positioning device and is used for welding the first workpiece and the second workpiece positioned by the positioning device, wherein the controller controls the pressing assembly to release the connection between the first workpiece and the second workpiece when the welding device approaches a group of the pressing assemblies, and controls the pressing assembly to press the connection between the first workpiece and the second workpiece again when the welding device passes through the pressing assembly and approaches the next group of the pressing assemblies.

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