Seat frame welding tool

Abstract

The present invention discloses a seat frame welding tool, which uses a positioning clamping cylinder to drive the positioning pressure plate to move back and forth to position the parts, and uses a tightening cylinder to drive the tightening support rod to rotate with the second rotating shaft as the fulcrum, thereby driving the tightening pressure plate to move back and forth to tighten the parts. The power of all clamping devices is provided by an air pump. After the equipment is connected, the air pump starts to work, and all clamping devices work to stably fix the workpiece on the entire tool. During operation, the support base and the positioner of the welding manipulator are connected. The entire welding process is completed by the manipulator and driven by the program, and the failure rate is effectively reduced. The operator's hands are freed throughout the process, and only the workpiece needs to be raised and lowered and the start button is pressed. The present invention has a simple and novel structure, is easy to operate, frees the operator's hands throughout the process, has high work efficiency, and is stable and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of seat frame welding, and in particular to a seat frame welding tool. Background Art

[0002] The original welding tooling components were cut and formed, resulting in low overall precision. This resulted in insufficient alignment when placing the seat frame workpiece, and the clamping function was poor, which easily led to deviations and made it difficult to ensure product quality. All clamping processes required manual operation, resulting in low overall efficiency. Summary of the Invention

[0003] The purpose of the present invention is to remedy the defects of the existing technology and provide a seat frame welding tool.

[0004] The present invention is achieved through the following technical solutions:

[0005] A seat frame welding tool comprises a support base, a positioning device and a tightening device are fixed on the support base, the positioning device comprises a positioning bracket fixed on the support base, a positioning fixing plate is fixed on the upper end of the positioning bracket, a plurality of through holes are opened on the positioning fixing plate, a positioning clamping cylinder is fixedly installed on the inner side of the positioning fixing plate, the piston rod of the positioning clamping cylinder passes through one of the through holes, and the end is fixedly connected to the positioning pressure plate, and sliding rods are respectively provided in the remaining through holes of the positioning fixing plate, the ends of the sliding rods are fixedly connected to the positioning pressure plate, and the other end of the sliding rod is provided with a limiting bolt, and the positioning clamping cylinder drives the positioning pressure plate to move back and forth; the tightening device comprises a tightening bracket and a tightening support rod, The upper end of the cylinder is fixedly connected to a tightening pressure plate, and a tightening pressure rod is fixed on the inner side of the tightening pressure plate, wherein the tightening pressure plate is arranged parallel to the positioning pressure plate, the positioning pressure plate is located on the inner side of the tightening pressure plate, and the tightening pressure rod is flush with the height of the sliding rod. A tightening cylinder is fixedly installed on the support base below the positioning clamping cylinder, and a connecting rod is connected to the piston rod of the tightening cylinder, and the end of the connecting rod is rotatably connected to the lower end of the tightening support rod through a rotating shaft. A protrusion one is provided on the inner side of the middle position of the tightening support rod, and the tightening bracket is fixed on the support base. A protrusion two is provided on the tightening bracket, and the protrusion one and the protrusion two are rotatably connected through a rotating shaft two. The tightening cylinder drives the tightening support rod to rotate with the rotating shaft two as the fulcrum, thereby driving the tightening pressure plate to move back and forth.

[0006] Three groups of positioning devices and tightening devices are installed on the support base, and a rectangular hole is opened in the center of the support base. The three groups of positioning devices and tightening devices are respectively distributed on the three sides of the rectangular hole, and the positioning fixing plates of the three positioning devices are fixedly connected.

[0007] Parts support frames are respectively installed on the support bases of the two sets of positioning devices and the side surfaces of the tightening devices on both sides.

[0008] The parts support frame includes an L-shaped support frame, a horizontal U-shaped support frame is fixed in the middle of the side of the L-shaped support frame, a through hole is opened on the side of the U-shaped support frame, and a locking screw is arranged in the through hole.

[0009] Limiting sleeves are respectively sleeved on the slide bars.

[0010] A pressure rod sleeve is sleeved on the tightening pressure rod to prevent the seat frame from being damaged.

[0011] The tightening bracket is Z-shaped, the lower end of the tightening bracket is fixed on the support base, and the second protrusion is arranged on the lower side of the upper end of the tightening bracket.

[0012] The positioning clamping cylinder is located in the middle of the positioning fixing plate, which has three through holes. The piston rod of the positioning clamping cylinder passes through the middle through hole, and the slide bars are respectively arranged in the through holes at both ends.

[0013] The advantages of the present invention are: when the present invention is in use, the support base and the positioner of the welding manipulator are connected, the entire welding process is completed by the manipulator, driven by the program, and the unqualified products are effectively reduced; the tightening device of the present invention is a lever mechanism, and the upper and lower cylinders act on the two ends of the lever respectively. The structure is simple and novel, the operation is convenient, the operator's hands are freed throughout the process, the work efficiency is high, and it is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention.

[0015] Figure 2 This is a structural schematic diagram of the seat frame of the present invention after installation. DETAILED DESCRIPTION

[0016] like Figure 1 、 2As shown, a seat frame welding tool comprises a support base 1, on which a positioning device and a tightening device are fixed, the positioning device comprises a positioning bracket 2 fixed on the support base 1, a positioning fixing plate 3 is fixed on the upper end of the positioning bracket 2, a plurality of through holes are opened on the positioning fixing plate 3, a positioning clamping cylinder 4 is fixedly installed on the inner side of the positioning fixing plate 3, the piston rod of the positioning clamping cylinder 4 passes through one of the through holes, and the end is fixedly connected to the positioning pressure plate 5, and sliding rods 6 are respectively provided in the remaining through holes of the positioning fixing plate 3, the ends of the sliding rods 6 are fixedly connected to the positioning pressure plate 5, and the other end of the sliding rod 6 is provided with a limiting bolt 7, and the positioning clamping cylinder 4 drives the positioning pressure plate 5 to move forward and backward; the tightening device comprises a tightening bracket 8 and a tightening support rod 9, which is fixedly connected to the upper end of the tightening support rod 9. It is connected to a tightening pressure plate 10, and a tightening pressure rod is fixed on the inner side of the tightening pressure plate 10, wherein the tightening pressure plate 10 is arranged parallel to the positioning pressure plate 5, and the positioning pressure plate 5 is located on the inner side of the tightening pressure plate 10, and the tightening pressure rod is flush with the height of the sliding rod 6. A tightening cylinder 11 is fixedly installed on the support base 1 below the positioning clamping cylinder 4, and a connecting rod 12 is connected to the piston rod of the tightening cylinder 11. The end of the connecting rod 12 is rotatably connected to the lower end of the tightening support rod 9 through a rotating shaft 13, and a bump 1 is provided on the inner side of the middle position of the tightening support rod 9. The tightening bracket 8 is fixed on the support base 1, and a bump 2 is provided on the tightening bracket 8. The bump 1 and the bump 2 are rotatably connected through the rotating shaft 2 14. The tightening cylinder 11 drives the tightening support rod 9 to rotate with the rotating shaft 2 14 as the fulcrum, thereby driving the tightening pressure plate 10 to move back and forth.

[0017] Three sets of positioning devices and tightening devices are installed on the support base 1, and a rectangular hole 15 is opened in the center of the support base. The three sets of positioning devices and tightening devices are respectively distributed on the three sides of the rectangular hole 15, and the positioning fixing plates 3 of the three positioning devices are fixedly connected.

[0018] Parts support racks are also installed on the supporting base 1 of the two sets of positioning devices and the side of the tightening device on both sides. The parts support racks are used to prevent the parts of the tightening device and the positioning device from extending.

[0019] The parts support frame includes an L-shaped support frame 16, a horizontal U-shaped support frame 17 is fixed in the middle of the side of the L-shaped support frame 16, a through hole is opened on the side of the U-shaped support frame 17, and a locking screw 18 is provided in the through hole.

[0020] The slide bars 6 are respectively covered with limiting sleeves 19 .

[0021] A pressure rod sleeve 20 is sleeved on the tightening pressure rod to prevent the seat frame from being damaged.

[0022] The tightening bracket 8 is Z-shaped, the lower end of the tightening bracket 8 is fixed on the support base 1, and the second protrusion is arranged on the lower side of the upper end of the tightening bracket 8.

[0023] The positioning clamping cylinder 4 is located in the middle of the positioning fixing plate 3. Three through holes are opened on the positioning fixing plate 3. The piston rod of the positioning clamping cylinder 4 passes through the middle through hole, and the sliding rods 6 are respectively arranged in the through holes at both ends.

[0024] During operation, an air pump powers the two cylinders. Before starting, the tightening and positioning devices are released. The seat frame part to be welded is placed in the gap between the positioning and tightening plates. The positioning and clamping cylinders (4) and tightening cylinders (11) are activated, and the two cylinders begin to operate, pushing the positioning and tightening plates (5) and (10) respectively to position and clamp the parts. Once welding is complete, the two cylinders are released, and the positioning and tightening plates (5, 10) are released, allowing the welded seat frame (21) to be removed. The entire process is program-controlled, powered by high-pressure gas, and fully automated.

[0025] The present invention adopts air-guided drive, automatic clamping, and cooperates with a robot for automatic welding. One machine has multiple workstations and maximizes efficiency.

Claims

1. A seat frame welding tool, characterized by: The cam is provided with a plurality of through holes, and a positioning clamping cylinder is fixedly installed on the inner side of the positioning fixing plate. The piston rod of the positioning clamping cylinder passes through one of the through holes, and the end thereof is fixedly connected with a positioning pressure plate. Slide rods are respectively provided in the other through holes of the positioning fixing plate, and the ends of the slide rods are fixedly connected with the positioning pressure plate. The other end of the slide rod is provided with a limit bolt, and the positioning clamping cylinder drives the positioning pressure plate to move forward and backward; the tightening device comprises a tightening bracket and a tightening support rod, which is fixedly connected to the upper end of the tightening support rod. A tightening pressure plate is connected, and a tightening pressure rod is fixed on the inner side of the tightening pressure plate, wherein the tightening pressure plate is arranged parallel to the positioning pressure plate, the positioning pressure plate is located on the inner side of the tightening pressure plate, and the tightening pressure rod is flush with the height of the sliding rod. A tightening cylinder is fixedly installed on the support base below the positioning clamping cylinder, and a connecting rod is connected to the piston rod of the tightening cylinder, and the end of the connecting rod is rotatably connected to the lower end of the tightening support rod through a rotating shaft. A protrusion one is provided on the inner side of the middle position of the tightening support rod, and the tightening bracket is fixed on the support base. A protrusion two is provided on the tightening bracket, and the protrusion one and the protrusion two are rotatably connected through a rotating shaft two. The tightening cylinder drives the tightening support rod to rotate with the rotating shaft two as the fulcrum, thereby driving the tightening pressure plate to move back and forth; Three sets of positioning devices and three sets of tightening devices are installed on the support base. A rectangular hole is opened in the center of the support base. The three sets of positioning devices and three sets of tightening devices are respectively distributed on the three sides of the rectangular hole, and the positioning fixing plates of the three positioning devices are fixedly connected; The tightening bracket is Z-shaped, the lower end of the tightening bracket is fixed on the support base, and the second protrusion is arranged on the lower side of the upper end of the tightening bracket.

2. The seat frame welding tool according to claim 1, characterized in that: Parts support frames are respectively installed on the support bases of the two sets of positioning devices and the side surfaces of the tightening devices on both sides.

3. The seat frame welding tool according to claim 2, characterized in that: The parts support frame includes an L-shaped support frame, a horizontal U-shaped support frame is fixed in the middle of the side of the L-shaped support frame, a through hole is opened on the side of the U-shaped support frame, and a locking screw is arranged in the through hole.

4. The seat frame welding tool according to claim 1, characterized in that: Limiting sleeves are respectively sleeved on the slide bars.

5. The seat frame welding tool according to claim 1, characterized in that: A pressure rod sleeve is sleeved on the tightening pressure rod.

6. The seat frame welding tool according to claim 1, characterized in that: The positioning clamping cylinder is located in the middle of the positioning fixing plate, which has three through holes. The piston rod of the positioning clamping cylinder passes through the middle through hole, and the slide bars are respectively arranged in the through holes at both ends.

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