Door lock shell welding equipment

Abstract

The invention discloses door lock shell welding equipment. The door lock shell welding equipment comprises a workbench; the three-dimensional moving device comprises a moving plate; the profiling mold is fixedly connected with the movable plate; the profiling clamp is arranged on the upper side of the profiling mold, and the profiling clamp is used for being matched with the profiling mold to clamp the door lock shell; the anti-edge-warping device is arranged on the upper side of the profiling mold and comprises a guide rail, the guide rail is annular, a sliding block is slidably connected to the guide rail, a driving mechanism is arranged on the sliding block and used for driving the sliding block to move on the guide rail, a first electric cylinder is arranged on the outer side of the sliding block and is perpendicular to the profiling mold, and a second electric cylinder is arranged on the outer side of the first electric cylinder and is perpendicular to the profiling mold. A second electric cylinder is arranged at the end of a telescopic rod in the first electric cylinder, a roller mechanism is arranged at the end of the second electric cylinder, and the roller mechanism is used for abutting against the edge of the door lock shell.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding, in particular to a door lock shell welding device. Background Art

[0002] Laser welding technology is an efficient and precise welding method that has been widely used in automobile manufacturing, especially in the welding of door lock actuator housings. Door lock actuators are usually composed of upper and lower shells, the upper shell is made of transparent or translucent materials, and the lower shell is made of light-absorbing materials. Laser welding achieves the welding of the upper and lower shells by absorbing the laser energy and melting the lower shell after the laser penetrates the transparent upper shell. However, in the prior art, there are still some problems that need to be solved in the welding process of the upper and lower shells of door lock actuators.

[0003] First, since the upper shell of the door lock actuator is mostly irregular in shape, and a rigid extrusion structure is usually used to fix the upper and lower shells during welding. During welding, the rigid extrusion method fails to adapt to the actual shape of the shell, which easily causes local warping or deformation of the shell;

[0004] Secondly, although the upper shell made of transparent material allows the laser to pass through, due to the optical properties of the material surface, the laser may be reflected when passing through the upper shell. This reflection phenomenon will not only reduce the effective transmission of laser energy, but also may cause uneven energy distribution in the welding area, thereby affecting the welding quality of the lower shell. In addition, the reflected light may also interfere with the optical system, further reducing the efficiency and accuracy of welding.

[0005] For this purpose, we propose a door lock housing welding device. Summary of the invention

[0006] The purpose of the present invention is to provide a door lock shell welding device to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions: a door lock shell welding device, comprising:

[0007] Workbench;

[0008] A three-dimensional moving device, the three-dimensional moving device comprising a moving plate;

[0009] A profiling die, wherein the profiling die is fixedly connected to the movable plate;

[0010] A profiling fixture, which is arranged on the upper side of the profiling mold and is used to cooperate with the profiling mold to clamp the door lock housing;

[0011] The anti-warping device is arranged on the upper side of the profiling mold, and the anti-warping device includes:

[0012] A guide rail, wherein the guide rail is annular, a slider is slidably connected to the guide rail, a driving mechanism is provided on the slider, and the driving mechanism is used to drive the slider to move on the guide rail, an electric cylinder 1 is provided on the outer side of the slider, and the electric cylinder 1 is vertically arranged with the profiling mold, and an electric cylinder 2 is provided at the end of the telescopic rod inside the electric cylinder 1, and a roller mechanism is provided at the end of the electric cylinder 2, and the roller mechanism is used to abut against the edge of the door lock housing, and at least two groups of the anti-warping device are provided;

[0013] A coating mechanism, wherein the coating mechanism is installed in cooperation with a part of the anti-warping device;

[0014] A grinding mechanism is installed on other anti-warping devices that are not equipped with a coating mechanism.

[0015] Preferably, the profiling fixture comprises:

[0016] A profiling plate, wherein a plurality of extrusion rods are arranged on the profiling plate, the bottom of the extrusion rods abuts against the surface of the upper shell of the door lock, a cylinder is fixedly connected to the profiling plate, the extrusion rods are slidably connected to the cylinder, a threaded rod is threadedly connected to the cylinder, the bottom of the threaded rod is rotatably connected to the connecting piece, a spring is arranged in the cylinder, one end of the spring is fixedly connected to the connecting piece and the other end is fixedly connected to the top end of the extrusion rod.

[0017] Preferably, the roller mechanism comprises:

[0018] A connecting shell, wherein the end of the connecting shell is rotatably connected to a steering rod, a resisting piece is arranged at the lower end of the steering rod, and a steering driving device for driving the steering rod to rotate forward and reverse is arranged on the connecting shell, and the resisting piece is cylindrical.

[0019] Preferably, the steering drive device comprises:

[0020] A servo motor 1, wherein the housing of the servo motor 1 is fixedly connected to the connecting shell, the end of the servo motor 1 is fixedly connected to a sprocket 1, the outer wall of the top end of the steering rod is fixedly connected to a sprocket 2, and a chain is connected between the sprocket 1 and the sprocket 2.

[0021] Preferably, the coating mechanism comprises:

[0022] A connector, the connector is rotatably connected to the steering rod, a paint tank is provided on one side of the slider, a small pump is connected to the bottom of the paint tank, and a hose is connected to the discharge port of the small pump and the connector;

[0023] A paint spraying head is connected to the bottom of the steering rod.

[0024] Preferably, the paint spraying head is flat, the paint spraying head is located in the middle of the resistance member, and the resistance member is a roller.

[0025] Preferably, the grinding mechanism comprises:

[0026] A concave frame, the top of the concave frame is fixedly connected to the bottom of the steering rod, a universal joint is rotatably connected to the concave frame, a servo motor 2 is arranged on the slider, one end of the universal joint is fixedly connected to the end of the internal rotating shaft of the servo motor 2, and the other end is fixedly connected to the resistance piece, the outer shell of the universal joint away from one end of the servo motor 2 is rotatably connected to the concave frame, and the resistance piece is a grinding wheel.

[0027] Preferably, the connecting shell is detachably connected to the end of the internal rotating shaft of the second electric cylinder.

[0028] The present invention has at least the following beneficial effects:

[0029] 1. The paint mechanism transports the paint in the paint tank to the paint spray head through a small pump, and the paint spray head evenly applies the paint to the surface of the cylindrical abutment. As the abutment rotates along the edge of the upper shell of the door lock driver, the paint is evenly distributed to the welding area at the edge of the shell, thereby effectively increasing the laser absorption rate on the upper shell surface and reducing reflection. After the paint dries, the coating is fixed, which effectively improves the energy transfer efficiency during laser welding. By increasing the absorption of the upper shell to the laser, the paint can effectively reduce reflection, ensuring that the laser can smoothly penetrate the upper shell during welding and be absorbed by the lower shell, thereby enhancing the stability and strength of the welded joint;

[0030] 2. During the laser welding process, the slider cooperates with the driving mechanism to move along the guide rail, and the starting electric cylinder 1 can move up and down in a direction perpendicular to the moving plate. The starting electric cylinder 2 can drive the roller mechanism to move in a direction parallel to the moving plate. By controlling the electric cylinder 1, the electric cylinder 2 and the roller mechanism, the roller mechanism can be moved slowly along the edge of the door lock driver housing. The laser can pass through the upper housing between the anti-warping devices and be absorbed by the surface of the lower housing. During the laser welding process, the roller mechanisms on both sides of the laser beam can press the welding surface tightly, effectively avoiding the problem of warping during the welding process;

[0031] 3. By placing the lower shell and the upper shell of the door lock driver on the profiling mold, the upper and lower shells of the door lock driver are fixed and pressurized by the profiling fixture and the extrusion drive device, wherein the three-dimensional moving device drives the moving plate to move on the plane, and then the edge welding surfaces of the upper and lower shells are welded by laser. The profiling fixture can effectively fix the upper and lower shells of the door lock driver to ensure stability during the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a structural schematic diagram of another viewing angle of the present invention;

[0034] Figure 3 It is a schematic diagram of the structure of the profiling fixture of the present invention;

[0035] Figure 4 It is a schematic diagram of the cross-sectional structure of the cylinder of the present invention;

[0036] Figure 5 This is a schematic diagram of the structure of the anti-warping device of the present invention;

[0037] Figure 6 It is a schematic diagram of the structure of the roller mechanism of the present invention;

[0038] Figure 7 This is a schematic diagram of the cross-sectional structure of the connector of the present invention;

[0039] Figure 8 This is a schematic diagram of the grinding mechanism structure of the present invention;

[0040] Fig. 9 It is a schematic structural diagram of the steering drive device of the present invention;

[0041] Fig.10 For the present invention Figure 4 A schematic diagram of the enlarged structure of part A.

[0042] In the figure: 10, workbench; 11, three-dimensional moving device; 12, profiling mold; 13, moving plate;

[0043] 20. profiling fixture; 21. profiling plate; 22. extrusion rod; 23. cylinder; 24. threaded rod; 25. connecting piece; 26. spring;

[0044] 30. Anti-warping device; 31. Guide rail; 32. Sliding block; 33. Electric cylinder 1; 34. Electric cylinder 2; 35. Roller mechanism; 351. Connecting shell; 352. Steering rod; 353. Conflict member; 354. Steering drive device;

[0045] 355, servo motor 1; 356, sprocket 1; 357, sprocket 2; 358, chain;

[0046] 40. coating mechanism; 41. connector; 42. coating tank; 43. small pump; 44. hose; 45. coating spray head;

[0047] 50. Grinding mechanism; 51. Concave frame; 52. Universal joint; 53. Servo motor 2. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] Embodiment 1:

[0050] In the actual laser welding process, in the traditional rigid fixture design, the fixture is usually a rigid fixture, which is difficult to adapt to the slight deformation or warping of the shell surface. During the welding process, excessive clamping force may cause uneven contact between the upper shell and the lower shell, especially at the joints, resulting in some areas not receiving sufficient pressure and heat input, which is easy to cause leaking or cold welding.

[0051] See also Figure 1-5 The present invention provides a technical solution: a door lock shell welding device, comprising:

[0052] Workbench 10;

[0053] A three-dimensional moving device 11, wherein the three-dimensional moving device 11 comprises a moving plate 13, and an extrusion driving device is arranged on the moving plate 13;

[0054] A profiling die 12, wherein the profiling die 12 is fixedly connected to a moving plate 13;

[0055] A profiling fixture 20, which is disposed on the upper side of the profiling mold 12, and is used to cooperate with the profiling mold 12 to clamp the door lock housing;

[0056] It should be noted that, by placing the lower shell and the upper shell of the door lock driver on the profiling mold 12, the upper and lower shells of the door lock driver are fixed and pressed by the profiling fixture 20 in cooperation with the extrusion drive device, wherein the three-dimensional moving device 11 drives the moving plate 13 to move on the plane, and then the edge welding surfaces of the upper and lower shells are welded by laser, and the profiling fixture 20 can effectively fix the upper and lower shells of the door lock driver to ensure the stability during the welding process. Here, the three-dimensional moving device 11 and the extrusion drive device are both prior arts and will not be described in detail.

[0057] The anti-warping device 30 is arranged on the upper side of the profiling mold 12, and the anti-warping device 30 includes:

[0058] The guide rail 31 is annular, and a slider 32 is slidably connected to the guide rail 31. The slider 32 is provided with a driving mechanism, and the driving mechanism is used to drive the slider 32 to move on the guide rail 31. An electric cylinder 1 33 is provided on the outer side of the slider 32, and the electric cylinder 1 33 is vertically arranged with the profiling mold 12. An electric cylinder 2 34 is provided at the end of the telescopic rod inside the electric cylinder 1 33, and a roller mechanism 35 is provided at the end of the electric cylinder 2 34. The roller mechanism 35 is used to abut against the edge of the door lock housing. The anti-warping device 30 is provided with at least two groups;

[0059] It should be noted that, during the laser welding process, the slider 32 cooperates with the driving mechanism to move along the guide rail 31, the electric cylinder 1 33 is started to move up and down in a direction perpendicular to the moving plate 13, and the electric cylinder 2 34 is started to drive the roller mechanism 35 to move in a direction parallel to the moving plate 13. By controlling the electric cylinder 1 33, the electric cylinder 2 34 and the roller mechanism 35, the roller mechanism 35 can be slowly moved along the edge of the door lock driver housing, and the laser can pass through the upper housing through the anti-warping device 30 and be absorbed by the surface of the lower housing. During the laser welding process, the roller mechanisms 35 on both sides of the laser beam can press the welding surface tightly, effectively avoiding the problem of warping during the welding process.

[0060] A coating mechanism 40, wherein the coating mechanism 40 is installed in cooperation with a part of the anti-warping device 30;

[0061] A grinding mechanism 50, wherein the grinding mechanism 50 is installed on other anti-warping devices 30 that are not equipped with a coating mechanism 40;

[0062] It is worth noting that if the surface of the upper shell is relatively smooth and has a high reflectivity, the surface can be polished by the polishing mechanism 50 to remove the smooth layer and improve the surface roughness. Then, a layer of coating with laser absorption properties is applied to the surface of the upper shell by the coating mechanism 40, thereby effectively reducing the reflection of the laser. This can enable the laser to better penetrate the upper shell and reach the welding surface of the lower shell directly, so that the welding surface of the lower shell absorbs heat evenly, thereby improving the welding effect.

[0063] Further as Figure 3 , Figure 4 and Figure 5 As shown, it is worth to explain in detail that the profiling fixture 20 comprises:

[0064] A profiling plate 21, on which a plurality of extrusion rods 22 are arranged, the bottom of the extrusion rods 22 abuts against the surface of the upper housing of the door lock, a cylinder 23 is fixedly connected to the profiling plate 21, the cylinder 23 has open ends at the top and bottom, and the inner wall of the cylinder 23 is provided with threads, the extrusion rods 22 are slidably connected to the cylinder 23, a threaded rod 24 is threadedly connected to the cylinder 23, the bottom of the threaded rod 24 is rotatably connected to the connecting piece 25, a spring 26 is arranged in the cylinder 23, one end of the spring 26 is fixedly connected to the connecting piece 25 and the other end is fixedly connected to the top of the extrusion rod 22;

[0065] It should be noted that the contour plate 21 is designed according to the actual shape of the door lock driver housing and can be adjusted according to the specific contour of the upper shell. The staff can adjust the preload force of the spring 26 by rotating the threaded rod 24 to achieve precise adjustment of the clamping pressure of different parts of the upper shell. In this way, the contour fixture 20 can apply different degrees of pressure to the shell surface according to actual conditions, effectively reduce the edge warping phenomenon during laser welding, ensure the uniformity of the contact surface during welding, and improve the welding quality.

[0066] Further as Figure 6 , Figure 7 and Figure 8 As shown, it is worth to explain in detail that the roller mechanism 35 includes:

[0067] A connecting shell 351, the end of which is rotatably connected to a steering rod 352, a resisting member 353 is provided at the lower end of the steering rod 352, a steering drive device 354 for driving the steering rod 352 to rotate forward and reverse is provided on the connecting shell 351, and the resisting member 353 is cylindrical;

[0068] It should be noted that during the laser welding process, the anti-warping device 30 cooperates with the roller mechanism 35 to move along the moving trajectory of the laser welding. The cylindrical resistance members 353 on both sides of the laser welding will tightly crimp the contact surface after welding, effectively preventing the warping phenomenon in the welding area of ​​the lower shell. At the same time, during the movement of the roller mechanism 35, the steering drive device 354 will drive the steering rod 352 to rotate according to the shape of the edge of the upper shell of the door lock driver, thereby ensuring that the resistance member 353 can move accurately along the edge of the upper shell, ensuring uniform crimping of the welding area and improving the welding quality.

[0069] Further as Fig. 9 As shown, it is worth to explain in detail that the steering drive device 354 includes:

[0070] A servo motor 355, wherein the housing of the servo motor 355 is fixedly connected to the connecting shell 351, a sprocket 356 is fixedly connected to the end of the servo motor 355, a sprocket 357 is fixedly connected to the outer wall of the top end of the steering rod 352, and a chain 358 is connected between the sprocket 356 and the sprocket 357;

[0071] It should be noted that the servo motor 1 355 controls the sprocket 1 356 through its rotation, thereby driving the sprocket 2 357 to rotate, and then transmits power to the steering rod 352 through the chain 358 to make it rotate. After the sprocket 2 357 fixed on the top of the steering rod 352 rotates, it drives the steering rod 352 to rotate, and then the resistance member 353 of the roller mechanism 35 rotates precisely along the edge of the upper shell of the door lock driver. Through this precise control, the roller mechanism 35 can tightly press the welding surface, effectively avoiding the warping phenomenon during laser welding.

[0072] In summary, the precise profiling fixture 20 and the anti-warping device 30 effectively ensure that the door lock housing is subjected to uniform pressure during the welding process, thereby avoiding welding defects caused by deformation. The coating mechanism 40 and the grinding mechanism 50 are used in conjunction to reduce the reflection of the laser on the highly reflective surface, ensuring that the laser can penetrate the upper shell and evenly transfer heat to the lower shell, thereby improving the welding quality. The combination of the roller mechanism 35 and the steering drive device ensures that the roller mechanism 35 can accurately move along the edge of the upper shell during the welding process, preventing warping and improving the uniformity of the welding area.

[0073] Embodiment 2:

[0074] The existing upper shell material of the door lock housing usually has a relatively smooth surface, and some materials have a high reflectivity, which makes the laser easily reflected during the welding process, resulting in the laser energy being unable to effectively penetrate the upper shell, thereby affecting the welding effect of the lower shell. This high reflectivity not only increases the energy loss during the welding process, but may also cause insufficient temperature in the local welding area, resulting in leaking or uneven welding. Especially in some parts that require fine welding, the smooth surface will cause insufficient laser concentration, affecting the final welding quality.

[0075] The coating mechanism 40 comprises:

[0076] A connector 41, the connector 41 is rotatably connected to the steering rod 352, the connector 41 is arranged at the top of the steering rod 352, a paint tank 42 is arranged on one side of the slider 32, a small pump 43 is connected to the bottom of the paint tank 42, and a hose 44 is connected to the discharge port of the small pump 43 and the connector 41;

[0077] A paint spraying head 45, wherein the paint spraying head 45 is connected to the bottom of the steering rod 352;

[0078] It should be noted that the paint mechanism 40 transports the paint in the paint tank 42 to the paint spray head 45 through a small pump 43, and the paint spray head 45 evenly applies the paint to the surface of the cylindrical resistance member 353. As the resistance member 353 rotates along the edge of the upper shell of the door lock driver, the paint is evenly distributed to the welding area of ​​the shell edge, thereby effectively increasing the laser absorption rate of the upper shell surface and reducing reflection. After the paint dries, the coating is fixed, which effectively improves the energy transfer efficiency during laser welding. By increasing the absorption of the upper shell to the laser, the paint can effectively reduce reflection, ensuring that the laser can smoothly penetrate the upper shell during the welding process and be absorbed by the lower shell, thereby enhancing the stability and strength of the welded joint.

[0079] Further as Figure 6 and Figure 7 As shown, it is worth to explain in detail that the paint spray head 45 is flat, the paint spray head 45 is located in the middle of the resistance member 353, and the resistance member 353 is a roller;

[0080] By setting the paint spray head 45 in the middle of the resistance member 353, the paint will be concentrated in the middle part of the resistance member 353. When the resistance member 353 contacts the surface of the upper shell, the paint will be spaced from the edge line of the upper shell, which increases the beauty while preventing excessive paint from flowing from the edge line to the side wall of the upper shell.

[0081] Further as Figure 8 As shown, it is worth to explain in detail that the grinding mechanism 50 includes:

[0082] A concave frame 51, the top of the concave frame 51 is fixedly connected to the bottom of the steering rod 352, a universal joint 52 is rotatably connected to the concave frame 51, a servo motor 53 is arranged on the slider 32, one end of the universal joint 52 is fixedly connected to the end of the internal shaft of the servo motor 53, and the other end is fixedly connected to the abutment 353, the housing of the universal joint 52 away from one end of the servo motor 53 is rotatably connected to the concave frame 51, and the abutment 353 is a grinding wheel;

[0083] It should be noted that the grinding mechanism 50 cooperates with the concave frame 51 fixedly connected to the steering rod 352, the servo motor 53 drives the slider 32 to move precisely, and the universal joint 52 connects the slider 32 and the abutment 353, so that the abutment 353 can rotate flexibly according to the shape of the edge of the upper shell. When the servo motor 53 is started, its rotating shaft drives the universal joint 52 to rotate, thereby driving the abutment 353 to rotate at a high speed, that is, the grinding wheel performs fine grinding along the edge of the upper shell. The grinding wheel removes the smooth layer on the surface of the upper shell through precise grinding operation, reduces the reflection of the laser during laser welding, and improves the laser absorption rate of the welding area.

[0084] It is worth noting that by removing the smooth layer through grinding and increasing the adhesion of the paint to the surface, combined with the light absorption effect of the paint, the laser can more effectively penetrate the upper shell and concentrate heat at the joint of the lower shell, thereby ensuring higher quality welds during the welding process and avoiding problems such as cold welds, leaking welds and uneven joints.

[0085] Further as Figure 6 As shown, it is worth to explain in detail that the connecting shell 351 is detachably connected to the end of the internal rotating shaft of the electric cylinder 2 34;

[0086] The connection shell 351 and the end of the internal shaft of the electric cylinder 2 34 are detachably connected, which is convenient for maintenance and replacement when necessary, thereby improving the maintainability and service life of the equipment.

[0087] In summary, the coating mechanism 40 transports the pigment in the coating tank 42 to the coating spray head 45 through a small pump 43, and evenly applies the pigment to the roller surface. As the roller rotates along the edge of the door lock shell, the pigment effectively increases the absorption of the laser on the upper shell, reduces the reflection phenomenon, and thus improves the energy transfer efficiency and welding quality of laser welding. The grinding mechanism 50 drives the grinding wheel to grind along the edge of the upper shell by precisely controlling the universal joint 52 and the servo motor 2 53, removes the smooth layer, reduces laser reflection, enhances the laser absorption rate, and ensures the stability of the welded joint. The anti-warping device 30 moves along the welding track through the roller mechanism 35, presses the welding surface of the upper shell tightly, prevents the warping phenomenon, and ensures the contact uniformity during the welding process. In addition, the coating spray head 45 is arranged in the middle of the roller, so that the pigment is concentrated in the middle part, and the pigment is prevented from flowing from the edge to the side wall, which improves the aesthetics and prevents waste. The connection shell 351 and the end of the internal shaft of the electric cylinder 2 34 are detachably connected, which is convenient for maintenance and replacement, and improves the maintainability and service life of the equipment.

[0088] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0089] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A door lock housing welding device, characterized in that: include: Workbench (10); A three-dimensional moving device (11), wherein the three-dimensional moving device (11) comprises a moving plate (13); A profiling mold (12), wherein the profiling mold (12) is fixedly connected to a movable plate (13); A profiling clamp (20), the profiling clamp (20) being arranged on the upper side of the profiling mold (12), the profiling clamp (20) being used to cooperate with the profiling mold (12) to clamp the door lock housing; An anti-warping device (30), the anti-warping device (30) being arranged on the upper side of the profiling mold (12), the anti-warping device (30) comprising: A guide rail (31), the guide rail (31) is annular, a slider (32) is slidably connected to the guide rail (31), the slider (32) is provided with a driving mechanism, the driving mechanism is used to drive the slider (32) to move on the guide rail (31), an electric cylinder (33) is provided on the outer side of the slider (32), the electric cylinder (33) is vertically arranged with the profiling mold (12), an electric cylinder (34) is provided at the end of the telescopic rod inside the electric cylinder (33), a roller mechanism (35) is provided at the end of the electric cylinder (34), the roller mechanism (35) is used to abut against the edge of the door lock housing, and the anti-warping device (30) is provided with at least two groups; A coating mechanism (40), wherein the coating mechanism (40) is installed in cooperation with a portion of the anti-warping device (30); A grinding mechanism (50) is installed on other anti-warping devices (30) that are not equipped with a coating mechanism (40).

2. A door lock housing welding device according to claim 1, characterized in that: The profiling fixture (20) comprises: A profiling plate (21) is provided with a plurality of extrusion rods (22), the bottom of the extrusion rods (22) abuts against the surface of the upper housing of the door lock, a cylinder (23) is fixedly connected to the profiling plate (21), the extrusion rods (22) are slidably connected to the cylinder (23), a threaded rod (24) is threadedly connected to the cylinder (23), the bottom of the threaded rod (24) is rotatably connected to a connecting piece (25), a spring (26) is provided in the cylinder (23), one end of the spring (26) is fixedly connected to the connecting piece (25) and the other end is fixedly connected to the top of the extrusion rod (22).

3. A door lock housing welding device according to any one of claims 1 or 2, characterized in that: The roller mechanism (35) comprises: A connecting shell (351), the end of the connecting shell (351) is rotatably connected to a steering rod (352), a resisting member (353) is provided at the lower end of the steering rod (352), a steering drive device (354) for driving the steering rod (352) to rotate forward and reverse is provided on the connecting shell (351), and the resisting member (353) is cylindrical.

4. The door lock housing welding device according to claim 3, characterized in that: The steering drive device (354) comprises: A servo motor (355), wherein the housing of the servo motor (355) is fixedly connected to the connecting shell (351), the end of the servo motor (355) is fixedly connected to a sprocket (356), the top outer wall of the steering rod (352) is fixedly connected to a sprocket (357), and a chain (358) is connected between the sprocket (356) and the sprocket (357).

5. The door lock housing welding device according to claim 4, characterized in that: The coating mechanism (40) comprises: A connector (41), the connector (41) being rotatably connected to the steering rod (352), a coating tank (42) being provided on one side of the slider (32), a small pump (43) being connected to the bottom of the coating tank (42), and a hose (44) being connected between the discharge port of the small pump (43) and the connector (41); A paint spraying head (45), wherein the paint spraying head (45) is connected to the bottom of the steering rod (352).

6. The door lock housing welding device according to claim 5, characterized in that: The paint spraying head (45) is flat and is located in the middle of the resistance member (353). The resistance member (353) is a roller.

7. A door lock housing welding device according to any one of claims 4 or 5, characterized in that: The grinding mechanism (50) comprises: A concave frame (51), the top of the concave frame (51) is fixedly connected to the bottom of the steering rod (352), a universal joint (52) is rotatably connected to the concave frame (51), a servo motor 2 (53) is arranged on the slider (32), one end of the universal joint (52) is fixedly connected to the end of the internal rotating shaft of the servo motor 2 (53) and the other end is fixedly connected to the abutment (353), the outer shell of the universal joint (52) away from one end of the servo motor 2 (53) is rotatably connected to the concave frame (51), and the abutment (353) is a grinding wheel.

8. The door lock housing welding device according to claim 7, characterized in that: The connecting shell (351) is detachably connected to the end of the internal rotating shaft of the second electric cylinder (34).

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