Electric automobile aluminum alloy frame welding tool

Abstract

The utility model relates to the technical field of frame welding, in particular to a welding tool for an aluminum alloy frame of an electric automobile, which not only can preheat the frame before welding, improve the welding effect and prevent welding cracks, but also can clean an oxidation film on the surface of aluminum alloy before welding and facilitate subsequent welding. Comprising a workbench; the device comprises a workbench and further comprises two moving mechanisms, two lifting mechanisms, two cleaning mechanisms, four preheating mechanisms and two fixing mechanisms, the two moving mechanisms are installed on the workbench and drive the lifting mechanisms to move front and back, and the two lifting mechanisms are installed on the two moving mechanisms respectively and drive the cleaning mechanisms to move up and down. The two sets of cleaning mechanisms are installed on the two sets of lifting mechanisms correspondingly and conduct polishing and cleaning on the vehicle frame, the four sets of preheating mechanisms are installed on the two sets of lifting mechanisms correspondingly and conduct preheating on the vehicle frame, and the two sets of fixing mechanisms replace the two sets of cleaning mechanisms to be installed on the lifting mechanisms to clamp parts to be welded.

Description

Technical Field

[0001] The utility model relates to the technical field of frame welding, in particular to a welding tool for an aluminum alloy frame of an electric vehicle. Background Art

[0002] The frame is generally composed of longitudinal beams and cross beams, and its forms mainly include side beam type and center beam type. The side beam type frame consists of two longitudinal beams located on both sides and several cross beams.

[0003] The existing frame welding tool, for example, a vehicle frame welding tool disclosed in the utility model patent with application number 201921544427.2, has a main structure including a welding frame and a bearing plate, support columns are fixed on both sides of the top of the welding frame, and a connecting grid is connected to one side of the bottom end of the support column, a fixing plate is fixed on the inner side of the connecting grid, and the welding frame and the fixing plate are fixedly connected, a hydraulic cylinder is connected to the top of the fixing plate, and a lifting rod is arranged on the top of the hydraulic cylinder, the bearing plate is fixed to the top of the lifting rod, a scrap frame is connected to the inner side of the bottom end of the fixing plate, and the welding frame and the scrap frame are movably connected. Baffles are arranged on both sides of the interior of the welding frame, and the bottom ends of the baffles are connected to reinforcement plates, and a slide plate is arranged at the bottom of the reinforcement plate; when in use, the lifting rod is pushed by the power of the hydraulic cylinder to drive the bearing plate to move up and down, so that the fixed plate can be protected between the hydraulic cylinders, and the lifting and lowering bearing plate can lift the top equipment, so that a certain distance is maintained between the welding tooling and the automobile frame. At the same time, the waste frame is movably installed between the welding frames, and the snap plate of the waste frame can be snapped into the welding frame. The user can clean the waste slag in the welding frame and gather it into the waste frame, so as to filter and process the frame welding waste slag.

[0004] However, the aluminum alloy needs to be preheated before welding to reduce welding stress and cracks. In addition, a refractory oxide film is easily produced on the surface of the aluminum alloy. If it is not cleaned before welding, it will easily affect the welding effect. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an electric vehicle aluminum alloy frame welding tool which can not only preheat the frame before welding, thereby improving the welding effect and preventing welding cracks, but also clean the oxide film on the surface of the aluminum alloy before welding, thereby facilitating subsequent welding.

[0006] The utility model discloses an electric vehicle aluminum alloy frame welding tool, comprising a workbench; further comprising two groups of moving mechanisms, two groups of lifting mechanisms, two groups of cleaning mechanisms, four groups of preheating mechanisms and two groups of fixing mechanisms, the two groups of moving mechanisms are all mounted on the workbench and drive the lifting mechanisms to move forward and backward, the two groups of lifting mechanisms are respectively mounted on the two groups of moving mechanisms and drive the cleaning mechanisms to move up and down, the two groups of cleaning mechanisms are respectively mounted on the two groups of lifting mechanisms and grind and clean the frames, the four groups of preheating mechanisms are respectively mounted on the two groups of lifting mechanisms and preheat the frames, the two groups of fixing mechanisms replace the two groups of cleaning mechanisms and are mounted on the lifting mechanisms to clamp the parts to be welded; the frame is transferred to the workbench and fixed, then the moving mechanism and the lifting mechanism are started according to the position where welding is required, the cleaning mechanism is adjusted to the position where welding is required, the cleaning mechanism is started to grind the welding position, the oxide film on the surface of the frame is cleaned off, and then the two groups of preheating mechanisms are used to preheat the frame to improve the welding quality, and then the fixing mechanism is used to replace the cleaning mechanism, the parts to be welded are placed on the fixing mechanism and fixed, so that the staff can weld them on the frame conveniently.

[0007] Preferably, the workbench includes a table body, multiple groups of conveying rollers, eight groups of hydraulic cylinders and four groups of fixed clamps. The bottom end of the table body is connected to the ground, the multiple groups of conveying rollers are rotatably installed on the table body, the eight groups of hydraulic cylinders are installed on the table body, and a group of fixed clamps are installed on the top of two adjacent groups of hydraulic cylinders; the aluminum alloy frame is conveyed forward on the multiple groups of conveying rollers and stops after being conveyed to the designated position. The eight groups of hydraulic cylinders push the four groups of fixed clamps to fix the frame to facilitate welding.

[0008] Preferably, the moving mechanism includes a servo motor, two sets of reducers, a transmission shaft, two sets of lead screws, two sets of sliders and two sets of guide rods. The servo motor is installed on the platform, and the two sets of reducers are installed on the platform. The transmission shaft is rotatably installed between the two sets of reducers. Four sets of sliding grooves are opened on the platform, and the two sets of lead screws are respectively installed in the sliding grooves of the platform. A set of sliders is slidably installed on each set of lead screws, and the two sets of guide rods are installed between the two sets of sliders; the servo motor is started, and the servo motor drives the reducer connected to it, and the reducer drives another set of reducers through the transmission shaft. The two sets of reducers drive the two sets of lead screws to rotate respectively, and the two sets of lead screws drive the two sets of sliders to move forward and backward respectively, which is convenient for cleaning and welding different positions of the frame. By setting two sets of guide rods, the synchronization between the two sets of sliders is enhanced, and the lifting mechanism is convenient for moving up and down. Adjustment.

[0009] Preferably, the lifting mechanism includes a cylinder 1, a spring, a fixed seat, a roller shaft, a gear, a bevel gear 1, a knob and a bevel gear 2, the bottom end of the cylinder 1 is connected to the top end of a sliding block located below, the spring is mounted on the cylinder 1, the fixed seat is slidably mounted on two sets of guide rods and the bottom end of the fixed seat is connected to the top end of the cylinder 1, a mounting groove is provided on the fixed seat, the roller shaft is rotatably mounted on the fixed seat, the gear is mounted on the roller shaft, the bevel gear 1 is mounted on the roller shaft, the knob is rotatably mounted on the fixed seat, the bevel gear 2 is mounted on the knob and meshes with the bevel gear 1 for transmission; start the cylinder 1, the cylinder 1 pushes the fixed seat to reach a suitable height, when it is necessary to adjust the protruding length of the cleaning mechanism, the staff turns the knob, the knob drives the bevel gear 2 to rotate, the bevel gear 2 and the bevel gear 1 mesh for transmission, the bevel gear 1 drives the roller shaft and the gear to rotate, and the gear adjusts the protruding length of the cleaning mechanism and the fixing mechanism.

[0010] Preferably, the cleaning mechanism includes a connecting plate 1, a rack 1, a bracket, a motor and a grinding wheel. The connecting plate 1 is slidably installed in the installation groove of the fixed seat, the top end of the rack 1 is connected to the bottom end of the connecting plate 1, the bracket is installed on the connecting plate 1, the motor is installed on the bracket, and the grinding wheel is rotatably installed on the bracket; the rotation of the gear drives the rack 1 and the connecting plate 1 to extend out, so that the grinding wheel contacts the welding surface of the frame, and then the motor is started, the motor drives the grinding wheel to rotate, and the grinding wheel cleans the oxide film on the surface of the frame to facilitate subsequent welding.

[0011] Preferably, the preheating mechanism includes two groups of cylinders 2, a connecting frame and a resistance wire, the two groups of cylinders 2 are installed on a fixed seat, the connecting frame is installed on the top of the two groups of cylinders 2, the resistance wire is installed on the connecting frame, and two groups of preheating mechanisms are installed on each group of gears; when the cleaning mechanism is polished, the two groups of cylinders 2 push the connecting frame close to the frame, and the resistance wire preheats the frame to facilitate subsequent welding and prevent cracks during welding.

[0012] Preferably, the fixing mechanism includes connecting plate 2, rack 2, chuck and three sets of fixing pliers, connecting plate 2 is slidably installed in the mounting groove of the fixing seat, the top end of rack 2 is connected to the bottom end of connecting plate 2, the bottom end of chuck is connected to the top end of rack 2, and the three sets of fixing pliers are all installed on the chuck; after the cleaning is completed, the cleaning mechanism is pulled out, rack 2 is inserted into the mounting groove of the fixing seat, the gear drives connecting plate 2 to extend until it is suitable, the workpiece to be welded is placed in the chuck, and the three sets of fixing pliers are started to clamp the workpiece to be welded, so that the staff can weld it on the frame conveniently.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the frame is transferred to the workbench and fixed thereon, and then the moving mechanism and the lifting mechanism are started according to the position where welding is required, the cleaning mechanism is adjusted to the position where welding is required, the cleaning mechanism is started to grind the welding position, and the oxide film on the surface of the frame is cleaned off, and then two sets of preheating mechanisms are used to preheat it to improve the welding quality, and then the fixing mechanism is used to replace the cleaning mechanism, and the parts to be welded are placed on the fixing mechanism and fixed thereon, so that the staff can weld them on the frame conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the axonometric structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the cross-section axonometric structure of the workbench and the moving mechanism of the utility model;

[0016] Figure 3 It is a schematic diagram of the cross-section axonometric structure of the moving mechanism and the lifting mechanism of the utility model;

[0017] Figure 4 It is a partially enlarged top view cross-sectional structural diagram of the lifting mechanism of the utility model;

[0018] Figure 5 It is a partially enlarged cross-sectional axonometric structural schematic diagram of the cleaning mechanism and preheating mechanism of the utility model;

[0019] Figure 6 It is an axonometric structural diagram of the fixing mechanism of the utility model.

[0020] Markings in the attached drawings: 01, workbench; 11, table body; 12, conveying roller; 13, hydraulic cylinder; 14, fixed clamp; 02, moving mechanism; 21, servo motor; 22, reducer; 23, transmission shaft; 24, lead screw; 25, slider; 26, guide rod; 03, lifting mechanism; 31, cylinder one; 32, spring; 33, fixed seat; 34, roller; 35, gear; 36, bevel gear one; 37, knob; 38, bevel gear two; 04, cleaning mechanism; 41, connecting plate one; 42, rack one; 43, bracket; 44, motor; 45, grinding wheel; 05, preheating mechanism; 51, cylinder two; 52, connecting frame; 53, resistance wire; 06, fixing mechanism; 61, connecting plate two; 62, rack two; 63, chuck; 64, fixing clamp. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0022] Example 1

[0023] The utility model discloses an electric vehicle aluminum alloy frame welding tool, comprising a workbench 01; and also comprising two groups of moving mechanisms 02, two groups of lifting mechanisms 03, two groups of cleaning mechanisms 04, four groups of preheating mechanisms 05 and two groups of fixing mechanisms 06. The two groups of moving mechanisms 02 are both installed on the workbench 01 and drive the lifting mechanisms 03 to move forward and backward. The two groups of lifting mechanisms 03 are respectively installed on the two groups of moving mechanisms 02 and drive the cleaning mechanisms 04 to move up and down. The two groups of cleaning mechanisms 04 are respectively installed on the two groups of lifting mechanisms 03 and grind and clean the frame. The four groups of preheating mechanisms 05 are respectively installed on the two groups of lifting mechanisms 03 and preheat the frame. The two groups of fixing mechanisms 06 replace the two groups of cleaning mechanisms 04 and are installed on the lifting mechanisms 03 to clamp the welded parts. The workbench 01 includes a platform 11, multiple groups of conveying rollers 12, eight groups of hydraulic cylinders 13 and four groups of fixed clamps 14. The bottom end of the platform 11 is connected to the ground. Multiple groups of conveying rollers 12 are rotatably mounted on the platform 11. Eight groups of hydraulic cylinders 13 are mounted on the platform 11. A group of fixed clamps 14 are mounted on the tops of two adjacent groups of hydraulic cylinders 13. The moving mechanism 02 includes a servo motor 21, two groups of reducers 22, a transmission shaft 23, two groups of lead screws 24, two groups of sliders 25 and two groups of guide rods 26. The servo motor 21 is mounted on the platform 11. Two groups of reducers 22 are mounted on the platform 11. The transmission shaft 23 is rotatably mounted between the two groups of reducers 22. Four groups of sliding grooves are opened on the platform 11. Two groups of lead screws 24 are respectively mounted in the sliding grooves of the platform 11. Each group A group of sliders 25 are slidably mounted on the lead screw 24, and two groups of guide rods 26 are installed between the two groups of sliders 25; the lifting mechanism 03 includes a cylinder 1 31, a spring 32, a fixed seat 33, a roller shaft 34, a gear 35, a bevel gear 1 36, a knob 37 and a bevel gear 2 38, the bottom end of the cylinder 1 31 is connected to the top of the slider 25 located below, the spring 32 is sleeved on the cylinder 1 31, the fixed seat 33 is slidably mounted on the two groups of guide rods 26 and the bottom end of the fixed seat 33 is connected to the top of the cylinder 1 31, a mounting groove is opened on the fixed seat 33, the roller shaft 34 is rotatably mounted on the fixed seat 33, the gear 35 is mounted on the roller shaft 34, the bevel gear 1 36 is mounted on the roller shaft 34, the knob 37 is rotatably mounted on the fixed seat 33, and the bevel gear 2 38 is installed on the knob 37 and meshes with the bevel gear 36 for transmission; the cleaning mechanism 04 includes a connecting plate 41, a rack 42, a bracket 43, a motor 44 and a grinding wheel 45, the connecting plate 41 is slidably installed in the installation groove of the fixed seat 33, the top of the rack 42 is connected to the bottom of the connecting plate 41, the bracket 43 is installed on the connecting plate 41, the motor 44 is installed on the bracket 43, and the grinding wheel 45 is rotatably installed on the bracket 43; the preheating mechanism 05 includes two groups of cylinders 51, a connecting frame 52 and a resistance wire 53, the two groups of cylinders 51 are installed on the fixed seat 33, the connecting frame 52 is installed on the top of the two groups of cylinders 51, the resistance wire 53 is installed on the connecting frame 52, and two groups of preheating mechanisms 05 are installed on each group of gears 35;When it is working, first, the aluminum alloy frame is transported forward on multiple groups of conveying rollers 12, and stops after being transported to the specified position. Eight groups of hydraulic cylinders 13 push four groups of fixed clamps 14 to fix the frame, and the servo motor 21 is started. The servo motor 21 drives the reducer 22 connected thereto, and the reducer 22 drives another group of reducers 22 through the transmission shaft 23. The two groups of reducers 22 respectively drive the two groups of lead screws 24 to rotate, and the two groups of lead screws 24 respectively drive the two groups of sliders 25 to move back and forth, which is convenient for cleaning and welding different positions of the frame. By setting two groups of guide rods 26, the synchronization between the two groups of sliders 25 is enhanced, and the lifting mechanism 03 is convenient for moving up and down adjustment. The cylinder 31 is started, and the cylinder 31 pushes the fixed seat 33 to reach a suitable position. Height, when it is necessary to adjust the protruding length of the cleaning mechanism 04, the staff turns the knob 37, the knob 37 drives the bevel gear 2 38 to rotate, the bevel gear 2 38 and the bevel gear 1 36 mesh and drive, the bevel gear 1 36 drives the roller 34 and the gear 35 to rotate, the gear 35 rotates to drive the rack 1 42 and the connecting plate 1 41 to protrude, so that the grinding wheel 45 contacts the welding surface of the frame, and then starts the motor 44, the motor 44 drives the grinding wheel 45 to rotate, the grinding wheel 45 cleans the oxide film on the surface of the frame, and facilitates subsequent welding. When the cleaning mechanism 04 is polished, the two sets of cylinders 2 51 push the connecting frame 52 close to the frame, and the resistance wire 53 preheats the frame to facilitate subsequent welding and prevent cracks during welding. ;

[0024] Example 2

[0025] like Figures 1 to 6As shown, a welding tool for an aluminum alloy frame of an electric vehicle of the utility model is based on Example 1; when it is working, the fixing mechanism 06 includes a connecting plate 2 61, a rack 2 62, a chuck 63 and three sets of fixing clamps 64, the connecting plate 2 61 is slidably installed in the mounting groove of the fixing seat 33, the top end of the rack 2 62 is connected to the bottom end of the connecting plate 2 61, the bottom end of the chuck 63 is connected to the top end of the rack 2 62, and the three sets of fixing clamps 64 are all installed on the chuck 63; first, the aluminum alloy frame is conveyed forward on multiple sets of conveying rollers 12, and conveyed to After the designated position is reached, the vehicle frame stops. The eight hydraulic cylinders 13 push the four fixed clamps 14 to fix the vehicle frame. The servo motor 21 is started. The servo motor 21 drives the reducer 22 connected thereto. The reducer 22 drives another reducer 22 through the transmission shaft 23. The two reducers 22 drive the two lead screws 24 to rotate respectively. The two lead screws 24 drive the two sliders 25 to move forward and backward respectively, which is convenient for cleaning and welding different positions of the vehicle frame. The two guide rods 26 are provided to enhance the synchronization between the two sliders 25 and facilitate the lifting mechanism 03 to move up and down. The cylinder 31 is started, and the cylinder 31 pushes the fixing seat 33 to a suitable height. When the protruding length of the cleaning mechanism 04 needs to be adjusted, the staff turns the knob 37, and the knob 37 drives the bevel gear 2 38 to rotate, and the bevel gear 2 38 and the bevel gear 1 36 are meshed for transmission, and the bevel gear 1 36 drives the roller shaft 34 and the gear 35 to rotate, and the gear 35 rotates to drive the rack 1 42 and the connecting plate 1 41 to protrude, so that the grinding wheel 45 contacts the welding surface of the frame, and then the motor 44 is started, and the motor 44 drives the grinding wheel 45 to rotate , the grinding wheel 45 cleans the oxide film on the surface of the frame to facilitate subsequent welding. After the cleaning is completed, the cleaning mechanism 04 is pulled out, the rack 2 62 is inserted into the mounting groove of the fixing seat 33, the gear 35 drives the connecting plate 2 61 to extend until it is suitable, and the parts to be welded are placed in the chuck 63, and the three sets of fixing clamps 64 are started to clamp the parts to be welded, so that the staff can weld them on the frame. Then the two sets of cylinders 2 51 push the connecting frame 52 close to the frame, and the resistance wire 53 preheats the frame to facilitate subsequent welding and prevent cracks during welding.

[0026] The servo motor 21, the reducer 22 and the electric motor 44 of the utility model are purchased on the market, and the technicians in the industry only need to install and operate them according to the accompanying instruction manuals, without the need for the technicians in this field to make creative efforts.

[0027] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A welding tool for an aluminum alloy frame of an electric vehicle, comprising a workbench (01); characterized in that: The invention also comprises two groups of moving mechanisms (02), two groups of lifting mechanisms (03), two groups of cleaning mechanisms (04), four groups of preheating mechanisms (05) and two groups of fixing mechanisms (06). The two groups of moving mechanisms (02) are both installed on the workbench (01) and drive the lifting mechanisms (03) to move forward and backward. The two groups of lifting mechanisms (03) are respectively installed on the two groups of moving mechanisms (02) and drive the cleaning mechanisms (04) to move up and down. The two groups of cleaning mechanisms (04) are respectively installed on the two groups of lifting mechanisms (03) and grind and clean the frame. The four groups of preheating mechanisms (05) are respectively installed on the two groups of lifting mechanisms (03) and preheat the frame. The two groups of fixing mechanisms (06) replace the two groups of cleaning mechanisms (04) and are installed on the lifting mechanisms (03) to clamp the workpiece to be welded.

2. The electric vehicle aluminum alloy frame welding tool as claimed in claim 1, characterized in that: The workbench (01) comprises a platform body (11), a plurality of groups of conveying rollers (12), eight groups of hydraulic cylinders (13) and four groups of fixed clamping plates (14); the bottom end of the platform body (11) is connected to the ground; the plurality of groups of conveying rollers (12) are rotatably mounted on the platform body (11); the eight groups of hydraulic cylinders (13) are mounted on the platform body (11); and a group of fixed clamping plates (14) are mounted on the top ends of two adjacent groups of hydraulic cylinders (13).

3. The electric vehicle aluminum alloy frame welding tool as claimed in claim 2, characterized in that: The moving mechanism (02) comprises a servo motor (21), two groups of reducers (22), a transmission shaft (23), two groups of lead screws (24), two groups of sliders (25) and two groups of guide rods (26). The servo motor (21) is mounted on a platform (11). The two groups of reducers (22) are both mounted on the platform (11). The transmission shaft (23) is rotatably mounted between the two groups of reducers (22). Four groups of sliding grooves are opened on the platform (11). The two groups of lead screws (24) are respectively mounted in the sliding grooves of the platform (11). A group of sliders (25) are slidably mounted on each group of lead screws (24). The two groups of guide rods (26) are both mounted between the two groups of sliders (25).

4. The electric vehicle aluminum alloy frame welding tool as claimed in claim 3, characterized in that: The lifting mechanism (03) comprises a cylinder (31), a spring (32), a fixed seat (33), a roller (34), a gear (35), a bevel gear (36), a knob (37) and a bevel gear (38). The bottom end of the cylinder (31) is connected to the top end of a slider (25) located below. The spring (32) is sleeved on the cylinder (31). The fixed seat (33) is slidably mounted on two sets of guide rods (26) and the bottom end of the fixed seat (33) is connected to the top end of the cylinder (31). The fixed seat (33) is provided with a mounting groove. The roller (34) is rotatably mounted on the fixed seat (33). The gear (35) is mounted on the roller (34). The bevel gear (36) is mounted on the roller (34). The knob (37) is rotatably mounted on the fixed seat (33). The bevel gear (38) is mounted on the knob (37) and meshes with the bevel gear (36) for transmission.

5. The electric vehicle aluminum alloy frame welding tool as claimed in claim 4, characterized in that: The cleaning mechanism (04) comprises a connecting plate (41), a rack (42), a bracket (43), a motor (44) and a grinding wheel (45); the connecting plate (41) is slidably mounted in a mounting groove of a fixed seat (33); the top end of the rack (42) is connected to the bottom end of the connecting plate (41); the bracket (43) is mounted on the connecting plate (41); the motor (44) is mounted on the bracket (43); and the grinding wheel (45) is rotatably mounted on the bracket (43).

6. The electric vehicle aluminum alloy frame welding tool as claimed in claim 4, characterized in that: The preheating mechanism (05) comprises two groups of cylinders (51), a connecting frame (52) and a resistance wire (53). The two groups of cylinders (51) are both mounted on a fixing seat (33). The connecting frame (52) is mounted on the top of the two groups of cylinders (51). The resistance wire (53) is mounted on the connecting frame (52). Two groups of preheating mechanisms (05) are mounted on each group of gears (35).

7. The electric vehicle aluminum alloy frame welding tool as claimed in claim 4, characterized in that: The fixing mechanism (06) comprises a second connecting plate (61), a second rack (62), a chuck (63) and three sets of fixing pliers (64). The second connecting plate (61) is slidably mounted in a mounting groove of a fixing seat (33). The top end of the second rack (62) is connected to the bottom end of the second connecting plate (61). The bottom end of the chuck (63) is connected to the top end of the second rack (62). The three sets of fixing pliers (64) are all mounted on the chuck (63).

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