Spot welding device for metal furniture frame

Abstract

The utility model discloses a spot welding device for a metal furniture frame, which comprises a box body, a rotating disc is rotatably connected in the box body, a groove is arranged on the bottom surface of the rotating disc, a plurality of inner gears are fixedly arranged in the groove, a first motor is fixedly arranged in the box body, an output shaft of the first motor penetrates through the box body and is connected with a driving gear, and the driving gear is connected with the rotating disc. The inner gear is meshed with the driving gear, a clamping mechanism is arranged on the rotating disc, an electric telescopic rod is connected to the bottom wall of the box body in a sliding mode, a driving mechanism is arranged on the top face of the box body, the electric telescopic rod slides through the driving mechanism, and an assembling base is fixedly installed at the bottom end of the electric telescopic rod. Deflection caused by manual alignment is avoided, the spot welding efficiency is improved, and flexible spot welding can be conducted on the welding position by rotating the angle of the welding gun.

Description

Technical Field

[0001] The utility model relates to the field of furniture processing, in particular to a spot welding device for a metal furniture frame. Background Art

[0002] The main frame structure of some office furniture is made of metal pipes through cutting, bending and welding, and the overall structure is rectangular. In the welding process, the preliminary spot welding is generally carried out manually. The purpose of spot welding is to assemble the metal pipes into the required frame structure. This process does not require high welding accuracy and structural strength. Then, the welding robot is used for subsequent reinforcement welding.

[0003] During the spot welding process, it is usually necessary to manually move or reverse the metal frame so that different surfaces of the frame are aligned with the welding gun. This operation is relatively cumbersome and will affect the efficiency of spot welding. Utility Model Content

[0004] The utility model aims to solve the problems in the background technology and proposes a spot welding device for a metal furniture frame.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A spot welding device for a metal furniture frame comprises a box body, a turntable is rotatably connected in the box body, a groove is formed on the bottom surface of the turntable, a plurality of internal gears are fixedly installed in the groove, a first motor is fixedly installed in the box body, an output shaft of the first motor passes through the box body and is connected to a driving gear, and the internal gear is meshed with the driving gear, a clamping mechanism is provided on the turntable, an electric telescopic rod is slidably connected to the bottom wall of the box body, a driving mechanism is provided on the top surface of the box body, and the electric telescopic rod slides through the driving mechanism, an assembly seat is fixedly installed on the bottom end of the electric telescopic rod, a rotating seat is rotatably connected in the assembly seat, a welding gun is fixedly installed on the rotating seat, a second motor is fixedly installed on the side of the assembly seat, and the output shaft of the second motor is connected to the rotating seat.

[0007] Preferably, the driving mechanism comprises a third motor, and the third motor is fixedly mounted on a side surface of the third motor, an output shaft of the third motor is connected to a threaded rod, and both ends of the threaded rod are rotatably connected to corresponding side walls of the box body.

[0008] Preferably, a threaded sleeve is threadedly connected to the threaded rod, and the threaded sleeve is slidably connected in the box, and the electric telescopic rod is fixedly installed at the bottom end of the threaded sleeve.

[0009] Preferably, a through groove is formed on the top surface of the box body, a plurality of sliding grooves are symmetrically formed on the side walls of the through groove, and the threaded sleeve is slidably connected in the sliding groove.

[0010] Preferably, the clamping mechanism includes a fourth motor, and the fourth motor is fixedly mounted on the side of the turntable, the output shaft of the fourth motor is connected to a double-headed screw, and both ends of the double-headed screw are rotatably connected in the turntable, the double-headed screw is symmetrically threadedly connected to a screw sleeve, and each of the screw sleeves is provided with a fixing mechanism.

[0011] Preferably, the fixing mechanism comprises a U-shaped seat, and each U-shaped seat is fixedly mounted on the top surface of the screw sleeve, and each top surface of the U-shaped seat is threadedly connected with a plurality of bolts.

[0012] Preferably, a guide groove is provided on the top surface of the turntable, and both ends of the double-headed screw are rotatably connected to the side walls of the guide groove, and the screw sleeve is slidably connected to the guide groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. Start the first motor to drive the driving gear to rotate, and then rotate the turntable in the box body to form a groove on the bottom surface, and the groove is provided with an internal gear, and the driving gear is meshed with the internal gear, which can drive the turntable to rotate, so that the unwelded frame side is aligned with the welding gun, avoiding manual alignment and deflection, and enhancing the spot welding efficiency.

[0015] 2. By starting the second motor, the rotating seat is driven to rotate, and the welding gun is driven to rotate. Then, during the welding of the frame, the welding position can be flexibly spot welded by rotating the angle of the welding gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a spot welding device for a metal furniture frame proposed by the utility model;

[0017] Figure 2 This is a schematic cross-sectional structure diagram of a turntable of a spot welding device for a metal furniture frame proposed by the utility model;

[0018] Figure 3 The utility model is a schematic diagram of the top wall structure of a box body of a spot welding device for a metal furniture frame.

[0019] In the figure: 1 box, 2 electric telescopic rod, 3 first motor, 4 assembly seat, 5 welding gun, 6 turntable, 7 threaded rod, 8 second motor, 9 rotating seat, 10 third motor, 11 fourth motor, 12 double-headed screw, 13 screw sleeve, 14 threaded sleeve, 15 internal gear, 16 driving gear, 17 bolt. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-3 A spot welding device for a metal furniture frame includes a box body 1, a turntable 6 is rotatably connected inside the box body 1, a groove is opened on the bottom surface of the turntable 6, and a plurality of internal gears 15 are fixedly installed in the groove. A first motor 3 is fixedly installed in the box body 1, and the output shaft of the first motor 3 passes through the box body 1 and is connected to a driving gear 16, and the internal gear 15 is meshed with the driving gear 16. By driving the first motor 3, the driving gear 16 is driven to rotate, and then the turntable 6 is driven to rotate, so that the furniture clamped on the turntable 6 is deflected at an angle, which is convenient for the welding gun 5 to spot weld other surfaces of the furniture.

[0022] A clamping mechanism is provided on the turntable 6, and an electric telescopic rod 2 is slidably connected to the bottom wall of the box body 1. The clamping mechanism includes a fourth motor 11, and the fourth motor 11 is fixedly installed on the side of the turntable 6. The output shaft of the fourth motor 11 is connected to a double-headed screw 12, and both ends of the double-headed screw 12 are rotatably connected to the turntable 6. The double-headed screw 12 is symmetrically threaded with a screw sleeve 13, and each screw sleeve 13 is provided with a fixing mechanism. A guide groove is provided on the top surface of the turntable 6, and the two ends of the double-headed screw 12 are respectively rotatably connected to the side walls of the guide groove, and the screw sleeve 13 is slidably connected to the guide groove. The double-headed screw 12 is driven to rotate by the fourth motor 11, and then the screw sleeve 13 threadedly connected to the double-headed screw 12 is limited by the guide groove, so that it can only move linearly but not rotate, and the furniture can be fixed by the fixing mechanism.

[0023] The fixing mechanism includes a U-shaped seat, and each U-shaped seat is fixedly installed on the top surface of the screw sleeve 13. The top surface of each U-shaped seat is threadedly connected with multiple bolts 17. The furniture can be fixed by placing one end of the furniture in the U-shaped seat and then tightening the bolts 17.

[0024] A driving mechanism is provided on the top surface of the box body 1, and the electric telescopic rod 2 slides through the driving mechanism. The driving mechanism includes a third motor 10, and the third motor 10 is fixedly installed on the side of the third motor 10. The output shaft of the third motor 10 is connected with a threaded rod 7, and the two ends of the threaded rod 7 are respectively rotatably connected to the side walls of the box body 1 at corresponding positions. A threaded sleeve 14 is threadedly connected to the threaded rod 7. A through groove is provided on the top surface of the box body 1, and a plurality of slide grooves are symmetrically provided on the side walls of the through groove, and the threaded sleeve 14 is slidably connected in the slide groove, and the threaded sleeve 14 is slidably connected in the box body 1, and the electric telescopic rod 2 is fixedly installed at the bottom end of the threaded sleeve 14. The threaded rod 7 is driven to rotate by the third motor 10, and then the threaded sleeve 14 is driven to slide in the slide groove. The threaded sleeve 14 is limited by the slide groove, so that it can only move linearly but not rotate, and then the position of the welding gun 5 can be adjusted by the threaded sleeve 14.

[0025] An assembly seat 4 is fixedly installed at the bottom end of the electric telescopic rod 2, and a rotating seat 9 is rotatably connected inside the assembly seat 4. A welding gun 5 is fixedly installed on the rotating seat 9. A second motor 8 is fixedly installed on the side of the assembly seat 4, and the output shaft of the second motor 8 is connected to the rotating seat 9. The rotating seat 9 can be driven by the second motor 8 to rotate, and then rotate from the vertical direction to the horizontal direction. It can be adjusted according to actual conditions to enhance the flexibility of spot welding.

[0026] When the utility model is used, firstly, the fourth motor 11 is started to drive the double-headed screw 12 to rotate, and then the two screw sleeves 13 are symmetrically threadedly connected to the double-headed screw 12, thereby driving the two screw sleeves 13 to move toward each other until the clamping distance of the furniture is reached, and then the two ends of the furniture are fixed by screwing a plurality of bolts 17 threadedly connected on the U-shaped seat, and then the top surface of the furniture can be spot welded by the welding gun 5.

[0027] At the same time, when the spot welding of the top surface of the furniture is completed, the first motor 3 can be started to drive the driving gear 16 connected to the output shaft of the first motor 3 to rotate, and then the turntable 6 can be driven to rotate to adjust the orientation of the furniture, and then the second motor 8 can be started to drive the rotating seat 9 to rotate, and the welding gun 5 can be changed from the vertical direction to the horizontal direction, so as to perform spot welding on the side of the furniture.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A spot welding device for a metal furniture frame, characterized in that: The invention comprises a box (1), a turntable (6) rotatably connected inside the box (1), a groove being provided on the bottom surface of the turntable (6), a plurality of internal gears (15) being fixedly mounted inside the groove, a first motor (3) being fixedly mounted inside the box (1), an output shaft of the first motor (3) passing through the box (1) and connected to a driving gear (16), and the internal gear (15) meshing with the driving gear (16), a clamping mechanism being provided on the turntable (6), an electric telescopic rod (2) being slidably connected to the bottom wall of the box (1), a driving mechanism being provided on the top surface of the box (1), and the electric telescopic rod (2) sliding through the driving mechanism, an assembly seat (4) being fixedly mounted on the bottom end of the electric telescopic rod (2), a rotating seat (9) being rotatably connected inside the assembly seat (4), a welding gun (5) being fixedly mounted on the rotating seat (9), a second motor (8) being fixedly mounted on the side surface of the assembly seat (4), and the output shaft of the second motor (8) being connected to the rotating seat (9).

2. A spot welding device for a metal furniture frame according to claim 1, characterized in that: The driving mechanism comprises a third motor (10), and the third motor (10) is fixedly mounted on a side of the third motor (10), an output shaft of the third motor (10) is connected to a threaded rod (7), and two ends of the threaded rod (7) are respectively rotatably connected to side walls of the box body (1) at corresponding positions.

3. A spot welding device for a metal furniture frame according to claim 2, characterized in that: A threaded sleeve (14) is threadedly connected to the threaded rod (7), and the threaded sleeve (14) is slidably connected in the box body (1), and the electric telescopic rod (2) is fixedly mounted on the bottom end of the threaded sleeve (14).

4. A spot welding device for a metal furniture frame according to claim 3, characterized in that: A through groove is provided on the top surface of the box body (1), a plurality of sliding grooves are symmetrically provided on the side wall of the through groove, and the threaded sleeve (14) is slidably connected in the sliding groove.

5. A spot welding device for a metal furniture frame according to claim 1, characterized in that: The clamping mechanism comprises a fourth motor (11), and the fourth motor (11) is fixedly mounted on the side of the turntable (6); the output shaft of the fourth motor (11) is connected to a double-headed screw (12), and both ends of the double-headed screw (12) are rotatably connected in the turntable (6); the double-headed screw (12) is symmetrically threadedly connected to a lead screw sleeve (13), and each lead screw sleeve (13) is provided with a fixing mechanism.

6. A spot welding device for a metal furniture frame according to claim 5, characterized in that: The fixing mechanism comprises a U-shaped seat, and each U-shaped seat is fixedly mounted on the top surface of the lead screw sleeve (13), and each top surface of the U-shaped seat is threadedly connected to a plurality of bolts (17).

7. A spot welding device for a metal furniture frame according to claim 5, characterized in that: A guide groove is provided on the top surface of the rotating disk (6), and two ends of the double-headed screw (12) are rotatably connected to the side walls of the guide groove, and the screw sleeve (13) is slidably connected to the guide groove.

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