Automatic fixture for spot welding

Abstract

The utility model discloses an automatic fixture for spot welding, which relates to the technical field of fixture tools and comprises a base and a fixture component. The base is of a frame structure, and a working platform is arranged on the top of the base; the clamp assembly comprises a clamp base body and a clamping structure, the clamp base body is movably installed on the working platform, the clamp base body is used for containing a workpiece to be machined, and the clamping structure is fixedly installed on one side of the clamp base body and used for clamping and fixing the workpiece placed on the clamp base body; the clamp base body can move to the working position of the spot welding machine after the clamping structure fixes the workpiece. By means of the arrangement, convenience, safety and working efficiency of spot welding are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fixture tooling, and particularly relates to an automatic fixture for spot welding. Background Art

[0002] During the operation of the spot welder, the production operation is simple and the welding flexibility is strong. However, for manual loading and unloading, the labor intensity is high. During the manual loading and welding process, the quality cannot be guaranteed, and quality accidents often occur. For manual loading and unloading in spot welding, there are safety hazards in the working area of hand operation, and safety cannot be guaranteed, and safety accidents often occur.

[0003] Therefore, how to improve the convenience and safety of operators during spot welding is a technical problem that needs to be solved by those skilled in the art at present. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an automatic fixture for spot welding, which can improve the convenience and safety of operators during spot welding.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An automatic fixture for spot welding, comprising:

[0007] A base, which is of a frame structure, and a working platform is arranged on the top of the base;

[0008] A fixture assembly, including a fixture base body and a clamping structure. The fixture base body is movably installed on the working platform. The fixture base body is used for placing the workpiece to be processed. The clamping structure is fixedly installed on one side of the fixture base body and is used for clamping and fixing the workpiece placed on the fixture base body. After the workpiece is fixed by the clamping structure, the fixture base body can move to the working position of the spot welder.

[0009] Preferably, it further includes a flipping assembly installed on the working platform and a lower-piece slideway installed on one side of the base close to the flipping assembly.

[0010] Preferably, the fixture base body includes:

[0011] A bottom plate, on which a slider is installed, and the slider can cooperate with a sliding guide rail installed on the working platform;

[0012] A top plate, which is elastically connected to the bottom plate, and a support seat is installed on the upper side of the top plate, and the support seat is used for supporting the workpiece.

[0013] Preferably, a moving cylinder is fixed on the upper side of the working platform, the moving direction of the moving end of the moving cylinder is parallel to the extending direction of the sliding guide rail, and the moving end of the moving cylinder is connected to the bottom plate through a connecting block.

[0014] Preferably, the clamping structure is arranged on one side of the top plate, and the clamping structure comprises:

[0015] The clamping cylinder is fixed to one side of the top plate through the mounting plate;

[0016] The rotating support rod is vertically arranged on the mounting plate. The top end of the rotating support rod is rotatably connected to the middle of the clamping block. The end of the clamping block close to the clamping cylinder is rotatably connected to the movable end of the clamping cylinder. The end of the clamping block away from the clamping cylinder can cooperate with the support seat to clamp the workpiece.

[0017] Preferably, the clamping structure further comprises a protective cover arranged on the outer periphery of the rotating support rod.

[0018] Preferably, the flipping assembly includes a flipping cylinder and a support rod. The flipping cylinder is arranged on a working platform. A connecting seat is installed at the movable end of the flipping cylinder. A connecting plate is rotatably connected above the connecting seat. Two support rods are horizontally fixed on the connecting plate. A flipping block is fixedly installed on one side of the flipping cylinder. The flipping block can be clamped on one side of the connecting plate when the connecting plate rises to cause the connecting plate to rotate. The support rod is used to place the workpiece to be processed and receive the workpiece after processing.

[0019] Preferably, a nitrogen booster cylinder is provided between the moving cylinder and the connecting block.

[0020] Preferably, two sliding guide rails are arranged on the upper side of the working platform.

[0021] Preferably, the clamp assembly and the flip assembly are symmetrically arranged on the working platform.

[0022] Compared with the above-mentioned background technology, the utility model provides an automated spot welding fixture, including: a base and a fixture assembly; the base is a frame structure, and a working platform is provided on the top of the base; the fixture assembly includes a fixture base and a clamping structure, the fixture base is movably installed on the working platform, the fixture base is used to place the workpiece to be processed, the clamping structure is fixedly installed on one side of the fixture base, and is used to clamp and fix the workpiece placed on the fixture base, and the fixture base can be moved to the working position of the spot welding machine after the clamping structure fixes the workpiece.

[0023] That is to say, when spot welding is required for the workpiece, the operator only needs to place the workpiece on the fixture base, the clamping structure will fix the workpiece, and then the fixture base will be moved on the work platform to the working position of the spot welding machine to perform spot welding processing on the workpiece. After the processing is completed, the fixture base will be moved back to a safe position and the operator will remove the workpiece. In this way, the operator does not need to place the workpiece directly at the working position of the spot welding machine, which ensures the safety of the operator. Moreover, the operator is only responsible for placing and removing the workpiece during the spot welding process, which improves the convenience and work efficiency of spot welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0025] Figure 1 Top view of the automatic fixture for spot welding provided by the embodiment of the present invention;

[0026] Figure 2 Front view of the automatic fixture for spot welding provided by the embodiment of the present invention;

[0027] Figure 3 Structural schematic diagram of the flipping assembly and the fixture base provided by the embodiment of the present invention;

[0028] Figure 4 Structural schematic diagram of the clamping structure provided by the embodiment of the present invention.

[0029] Wherein:

[0030] 001 - workpiece;

[0031] 100 - base, 110 - working platform;

[0032] 200 - fixture assembly, 210 - fixture base, 211 - bottom plate, 212 - slider, 213 - sliding guide rail, 214 - top plate, 215 - moving cylinder, 216 - connecting block, 217 - nitrogen booster cylinder, 220 - clamping structure, 221 - clamping cylinder, 222 - mounting plate, 223 - rotating support rod, 224 - clamping block, 225 - protective cover;

[0033] 300 - flipping assembly, 310 - flipping cylinder, 320 - support rod, 330 - connecting seat, 340 - connecting plate, 350 - flipping stopper;

[0034] 400 - workpiece discharge chute. Detailed implementation manners

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0036] To enable those skilled in the art of this technology to better understand the solution of this utility model, the following further detailed description of the utility model will be given in conjunction with the accompanying drawings and specific embodiments.

[0037] In the description of this utility model, it should be understood that the orientation or positional relationships indicated by terms such as "upper", "lower", "bottom" and "top" are based on the orientation or positional relationships shown in the accompanying drawings. These are only for the convenience of describing this utility model and simplifying the description, rather than indicating or implying that the indicated positions or elements must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0038] The purpose of this utility model is to provide an automatic fixture for spot welding, which can improve the convenience and safety of operators during spot welding.

[0039] To achieve the above purpose, this utility model provides the following technical solutions:

[0040] Please refer to Figures 1 to 4 , this embodiment provides an automatic fixture for spot welding, including: a base 100 and a fixture assembly 200; the base 100 is of a frame structure, and a working platform 110 is provided at the top of the base 100; the fixture assembly 200 includes a fixture base body 210 and a clamping structure 220. The fixture base body 210 is movably installed on the working platform 110. The fixture base body 210 is used to place the workpiece 001 to be processed. The clamping structure 220 is fixedly installed on one side of the fixture base body 210 and is used to clamp and fix the workpiece 001 placed on the fixture base body 210. After the workpiece 001 is fixed by the clamping structure 220, the fixture base body 210 can move to the working position of the spot welder.

[0041] As Figure 1 shown in the figure, the base 100 is an overall square frame structure, and a working platform 110 for carrying other components is provided on the upper side of the frame. A movable fixture assembly 200 is provided on the working platform 110. The fixture assembly 200 is mainly used to clamp and fix the workpiece 001, and the workpiece 001 can be moved to the working position of the spot welder by moving. That is to say, when in use, the base 100 is moved to the position of the spot welder, and by adjustment, the end point of the fixture assembly 200 corresponds to the working position of the spot welder.

[0042] That is to say, when spot welding the workpiece 001 is required, the operator only needs to place the workpiece on the fixture base 210 at a safe position. The clamping structure 220 will fix the workpiece 001. Then the fixture base 210 will move on the working platform 110 to send the workpiece 001 to be processed to the working position of the spot welder for spot welding of the workpiece 001. After the processing is completed, the fixture base 210 will move back to the safe position, and the operator can take down the workpiece 001. In this way, the operator does not need to directly place the workpiece 001 at the working position of the spot welder, ensuring the safety of the operator. Moreover, during the spot welding process, the operator is only responsible for placing and taking the workpiece 001, improving the convenience and working efficiency of spot welding.

[0043] Preferably, the automatic fixture for spot welding further includes a flipping assembly 300 installed on the working platform 110 and a workpiece unloading chute 400 installed on the base 100 near the flipping assembly 300.

[0044] It can be understood that in order to further improve the working efficiency of the spot welder, a flipping assembly 300 is also provided on the working platform 110. The flipping assembly 300 is fixed on the working platform 110 and can lift the workpiece 001 that has been welded on the fixture base 210, causing the workpiece 001 to fly and fall onto the workpiece unloading chute 400 near the flipping assembly 300. The workpiece 001 will be collected uniformly through the workpiece unloading chute 400. With this setting, the operator only needs to be responsible for placing the workpiece 001, which can greatly improve the working efficiency of the spot welder.

[0045] Preferably, the fixture base 210 includes: a bottom plate 211 and a top plate 214; the bottom plate 211 is installed with sliders 212 at the bottom, and the sliders 212 can cooperate with the sliding guide rails 213 installed on the working platform 110; the top plate 214 is elastically connected to the bottom plate 211, and a support seat is installed on the upper side of the top plate 214 for supporting the workpiece 001.

[0046] Specifically, as shown in Figures 2 to 4As shown in the figure, the fixture base 210 is a double-layer structure as a whole. There is a bottom plate 211 at the bottom and a top plate 214 at the top. And a support seat for supporting the workpiece 001 is provided on the upper side of the top plate 214. The bottom plate 211 and the top plate 214 are elastically connected through the cooperation of a pin shaft and a spring. That is, the pin shafts sleeved with springs on the outer circumference are respectively vertically connected to the bottom plate 211 and the top plate 214. Under the action of the spring, the top plate 214 has a tendency to move away from the bottom plate 211, that is, the top plate 214 has a tendency to move upward. In this embodiment, since the workpiece 001 needs to be spot-welded, when the workpiece 001 is processed, there will be a downward impact force under the action of the spot welder. The elastic connection between the top plate 214 and the bottom plate 211 can effectively reduce the impact force on the workpiece and also reduce the reaction force received by the welding head of the spot welder, and can avoid the damage of the workpiece 001 and the welding head of the spot welder.

[0047] In addition, in this embodiment, the movement of the fixture base 210 is realized by the cooperation of the slider 212 provided under the bottom plate 211 and the sliding guide rail 213 provided on the working platform 110. That is to say, several sliders 212 are provided under the bottom plate 211, and sliding guide rails are provided on the working platform 110. The cooperation between the slider 212 and the sliding guide rail 213 can quickly and conveniently move the fixture base 210 to the working position of the spot welder.

[0048] Preferably, a moving cylinder 215 is fixed on the upper side of the working platform 110. The moving direction of the movable end of the moving cylinder 215 is parallel to the extending direction of the sliding guide rail 213. The movable end of the moving cylinder 215 is connected to the bottom plate 211 through a connecting block 216.

[0049] As Figure 1 shown, in this embodiment, the power source for the movement of the fixture base 210 is the moving cylinder 215. The moving cylinder 215 is fixedly installed on the working platform 110, and the moving direction of the movable end of the moving cylinder 215 is parallel to the extending direction of the sliding guide rail 213. A connecting block 216 is provided on the side of the bottom plate 211, and the movable end of the moving cylinder 215 is connected to the connecting block 216. In this way, the movement of the fixture base 210 is realized by the expansion and contraction of the movable end of the moving cylinder 215. Of course, in this embodiment, the power source is preferably the moving cylinder 215. The power source can also be selected as a hydraulic cylinder or a linear motor according to the actual situation, and no specific limitation is made here as long as the above purpose can be achieved.

[0050] Preferably, the clamping structure 220 is disposed on one side of the top plate 214. The clamping structure 220 includes: a clamping cylinder 221, a clamping cylinder 221, and a rotating support rod 223; the clamping cylinder 221 is fixed to one side of the top plate 214 through a mounting plate 222; the rotating support rod 223 is vertically disposed on the mounting plate 222, and the top end of the rotating support rod 223 is rotatably connected to the middle of the clamping block 224. One end of the clamping block 224 close to the clamping cylinder 221 is rotatably connected to the movable end of the clamping cylinder 221, and the end of the clamping block 224 facing away from the clamping cylinder 221 can cooperate with the support seat to clamp the workpiece 001.

[0051] As Figure 3 and Figure 4 shown, the entire clamping structure 220 is fixedly installed on one side of the top plate 214 through the mounting plate 222. Installing it on the top plate 214 can prevent the top plate 214 from moving downward under pressure during spot welding of the workpiece 001, which affects the fixing effect of the workpiece 001. When the top plate 214 is compressed downward, the clamping structure 220 will also move downward with the workpiece 001; in this embodiment, the clamping cylinder 221 is fixedly installed on the mounting plate 222, and a rotating support rod 223 is vertically disposed on the upper side of the mounting plate 222. A clamping block 224 is rotatably connected at the apex of the rotating support rod 223 and is connected to the middle position of the clamping block 224. In this way, the clamping block 224 and the rotating support rod 223 as a whole are similar to a lever. The other end of the clamping block 224 is rotatably connected to the movable end of the clamping cylinder 221. When the movable end of the clamping cylinder 221 expands and contracts, the clamping block 224 will move around the apex of the rotating support rod 223. The other end of the clamping block 224 is located above the support seat on the top plate 214. Therefore, the clamping block 224 can cooperate with the support seat to clamp and fix the workpiece 001; in this way, automatic clamping and fixing of the workpiece 001 can be achieved.

[0052] Preferably, the clamping structure 220 further includes a protective cover 225 covering the outer periphery of the rotating support rod 223.

[0053] As Figure 4 shown, in order to further prevent the clamping structure 220 from accidentally injuring the operator, a protective cover 225 is provided above the mounting plate 222, and covering the protective cover 225 also improves the appearance of the clamping structure 220.

[0054] Preferably, the flipping assembly 300 includes a flipping cylinder 310 and a support rod 320. The flipping cylinder 310 is disposed on the working platform 110. A connecting seat 330 is installed at the movable end of the flipping cylinder 310. A connecting plate 340 is rotatably connected above the connecting seat 330. Two support rods 320 are horizontally fixed on the connecting plate 340. A flipping stopper 350 is fixedly installed on one side of the flipping cylinder 310. The flipping stopper 350 can be clamped on one side of the connecting plate 340 when the connecting plate 340 rises, causing the connecting plate 340 to rotate. The support rods 320 are used to place the workpiece 001 to be processed and receive the workpiece 001 after processing is completed.

[0055] Specifically, as Figure 3 shown, a flipping cylinder 310 is vertically and fixedly installed on the working platform 110. A connecting seat 330 is fixed at the movable end of the flipping cylinder 310. A connecting plate 340 is rotatably connected above the connecting seat 330. The connecting plate 340 can rotate freely. Two support rods 320 are fixed on the connecting plate 340. The support rods 320 are in a horizontal position in the normal state and extend towards the fixture base 210, so that the support rods 320 can just flip the workpiece 001 to the downstream chute 400. A flipping stopper 350 is provided near the flipping cylinder 310. The top of the flipping stopper 350 is provided with a hook-like structure, and this part is exactly located directly above the connecting plate 340. In this way, when the movable end of the flipping cylinder 310 extends upward, the connecting plate 340 will also move upward until the connecting plate 340 touches the hook-like structure of the flipping stopper 350. When the flipping cylinder 310 continues to extend, the connecting plate 340 will flip to one side, thereby realizing flipping the workpiece 001 to the downstream chute 400.

[0056] Preferably, a nitrogen boosting cylinder 217 is provided between the moving cylinder 215 and the connecting block 216.

[0057] Specifically, as Figure 1 shown, in order to enable the fixture base 210 to respond quickly and improve the working efficiency of spot welding, a nitrogen boosting cylinder 217 is provided between the moving cylinder 215 and the connecting block 216. The fixture base 210 can quickly move to the working position of the spot welder under the action of the nitrogen boosting cylinder 217.

[0058] Preferably, two sliding guide rails 213 are provided on the upper side of the working platform 110.

[0059] It can be understood that such a setting can increase the stability of the movement of the fixture base 210, and still be able to quickly and accurately send the workpiece 001 to the working position of the spot welder when it moves quickly.

[0060] Preferably, the fixture assembly 200 and the flipping assembly 300 are symmetrically arranged on the working platform 110.

[0061] As Figure 1 and Figure 2 shown, in this embodiment, in order to increase the working efficiency of spot welding, two sets of fixture assemblies 200 and flipping assemblies 300 are provided on the working platform 110, and these two sets of fixture assemblies 200 and flipping assemblies 300 are symmetrically distributed as a whole.

[0062] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0063] The various embodiments in this specification are described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other.

[0064] The embodiments provided by the present utility model have been introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. An automated fixture for spot welding, characterized in that, include: The base (100) is a frame structure, and a working platform (110) is provided on the top of the base (100); The clamp assembly (200) comprises a clamp base (210) and a clamping structure (220), wherein the clamp base (210) is movably mounted on the working platform (110), the clamp base (210) is used to place a workpiece (001) to be processed, and the clamping structure (220) is fixedly mounted on one side of the clamp base (210) and is used to clamp and fix the workpiece (001) placed on the clamp base (210); the clamp base (210) can be moved to a working position of a spot welding machine after the clamping structure (220) fixes the workpiece (001).

2. The automated jig for spot welding according to claim 1, characterized in that, It also includes a turnover assembly (300) installed on the working platform (110) and a lower piece slideway (400) installed on a side of the base (100) close to the turnover assembly (300).

3. The automated jig for spot welding according to claim 2, characterized in that, The fixture base (210) comprises: A bottom plate (211) having a slider (212) installed at the bottom, wherein the slider (212) can cooperate with a sliding guide rail (213) installed on the working platform (110); A top plate (214) is elastically connected to the bottom plate (211), and a support seat is installed on the upper side of the top plate (214), the support seat being used to support the workpiece (001).

4. The automated jig for spot welding according to claim 3, characterized in that, A movable cylinder (215) is fixed on the upper side of the working platform (110); the moving direction of the movable end of the movable cylinder (215) is parallel to the extending direction of the sliding guide rail (213); and the movable end of the movable cylinder (215) is connected to the bottom plate (211) via a connecting block (216).

5. The automated jig for spot welding according to claim 3, characterized in that The clamping structure (220) is arranged on one side of the top plate (214), and the clamping structure (220) comprises: A clamping cylinder (221) fixed to one side of the top plate (214) via a mounting plate (222); A rotating support rod (223) is vertically arranged on the mounting plate (222); the top end of the rotating support rod (223) is rotatably connected to the middle of the clamping block (224); one end of the clamping block (224) close to the clamping cylinder (221) is rotatably connected to the movable end of the clamping cylinder (221); and the end of the clamping block (224) facing away from the clamping cylinder (221) can cooperate with the support seat to clamp the workpiece (001).

6. The automatic jig for spot welding according to claim 5, wherein, The clamping structure (220) further comprises a protective cover (225) which is arranged on the outer periphery of the rotating support rod (223).

7. The automated jig for spot welding according to claim 2, characterized in that, The flipping assembly (300) includes a flipping cylinder (310) and a support rod (320). The flipping cylinder (310) is arranged on the working platform (110). A connecting seat (330) is installed at the movable end of the flipping cylinder (310). A connecting plate (340) is rotatably connected above the connecting seat (330). Two support rods (320) are horizontally fixed on the connecting plate (340). A flipping stopper (350) is fixedly installed on one side of the flipping cylinder (310). The flipping stopper (350) can be clamped on one side of the connecting plate (340) when the connecting plate (340) rises, causing the connecting plate (340) to rotate. The support rod (320) is used to place the workpiece (001) to be processed and receive the workpiece (001) after processing.

8. The automated jig for spot welding according to claim 4, wherein, A nitrogen boosting cylinder (217) is arranged between the moving cylinder (215) and the connecting block (216).

9. The automated jig for spot welding according to claim 3, characterized in that, Two sliding guide rails (213) are arranged on the upper side of the working platform (110).

10. The automated jig for spot welding according to claims 1-9, characterized in that, The fixture assembly (200) and the flipping assembly (300) are symmetrically arranged on the working platform (110).

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