Mechanical engineering workpiece welding and fixing device

Abstract

The mechanical engineering workpiece welding and fixing device comprises an L-shaped bottom table, an L-shaped long frame is fixedly installed on the right side of the top face of the L-shaped bottom table, a U-shaped groove frame is fixed to the left side of the top face of the L-shaped bottom table, and sliding grooves are formed in the tops of the front face and the back face of the U-shaped groove frame; two V-shaped rings are fixed to the bottom end of the interior of the U-shaped groove frame, screw rods are rotatably installed on the inner walls of the two V-shaped rings, a servo motor is fixed to the left side of the top face of the L-shaped bottom table, the right end of a rotating shaft of the servo motor is fixedly connected with the left ends of the screw rods, and sliding pipes are slidably installed on the outer walls of the screw rods; a square tube workpiece is clamped by the double-arc plate to abut against the square tube workpiece in the L-shaped long frame, and therefore the problem that when a welding fixing device fixes a square tube for welding, the two square tube workpieces are difficult to fix to form right-angle welding, and consequently the welding effect of the square tube workpieces is poor is solved.

Description

Technical Field

[0001] The invention relates to the technical field of workpiece welding and fixing, in particular to a workpiece welding and fixing device for mechanical engineering. Background Art

[0002] Mechanical engineering workpieces refer to various parts or components made through mechanical processing, manufacturing and other processes in the field of mechanical engineering. They are the basic units that constitute mechanical equipment. The main function of the welding fixture is to fix the square tube workpiece for welding, so that the square tube workpiece will not be displaced or deformed during the welding process, thereby improving the welding quality and production efficiency.

[0003] The patent with publication number CN212145102U discloses a metal workpiece welding fixture, which improves the accuracy of welding through setting, greatly saves manpower and improves convenience. It includes a workbench and a pillar, the bottom end of the workbench is connected to the top end of the pillar, and also includes a rotating table, two groups of fixed blocks, two groups of first screws, two groups of first screws, two groups of fixed frames, two groups of lead screws, two groups of fixed bottom plates, a movable plate, a bracket, a second screw and a second screw. A slide groove is arranged in the middle of the workbench, the bottom end of the rotating table is connected to the slide groove, the rotating table can rotate in the slide groove, the two groups of fixed blocks are installed relative to each other, the bottom end of the fixed block is fixedly connected to the top end of the rotating table, a bearing is arranged on the fixed block, the first screw can be rotatably installed on the fixed block through the bearing, the left side of the first screw can be rotatably installed in the first screw, a clamping plate is arranged on the first screw, the bottom end of the fixed frame is fixedly installed on the top end of the workbench, and a cross bar is arranged on the fixed frame.

[0004] However, the current metal workpiece welding fixture has the following problems: when the metal workpiece welding fixture is in use, it is difficult to fix the two square tube workpieces in mechanical engineering when they are welded at right angles, resulting in a large weld, which in turn leads to poor welding effect of the square tube workpieces. Therefore, we propose a mechanical engineering workpiece welding fixture. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a mechanical engineering workpiece welding fixture, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a mechanical engineering workpiece welding fixture, comprising an L-shaped base table, an L-shaped long frame is fixedly installed on the right side of the top surface of the L-shaped base table, a U-shaped slot frame is fixed on the left side of the top surface of the L-shaped base table, and slide grooves are opened on the front and back tops of the U-shaped slot frame, two V-shaped rings are fixed to the bottom end of the U-shaped slot frame, and screws are rotatably installed on the inner walls of the two V-rings, a servo motor is fixed on the left side of the top surface of the L-shaped base table, the right end of the rotating shaft of the servo motor is fixedly connected to the left end of the screw, a sliding tube is slidably installed on the outer wall of the screw, and the outer wall of the sliding tube is slidably connected to the inner walls of the two slide grooves of the U-shaped slot frame, an L-shaped abutment plate is fixed on the top surface of the sliding tube, and an L-shaped sliding strip plate is fixed on the bottom surface of the sliding tube. A U-shaped thin frame is fixed on the right side of the top surface of the sliding strip plate, and two double-arc plates are penetrated and slidably installed on the top of the front and back sides of the U-shaped thin frame, and two springs are respectively fixed on the sides of the two double-arc plates away from each other, and a supporting column is fixed to the bottom end of the inner part of the U-shaped thin frame, and the L-shaped abutment plate drives the other square tube workpiece to move to the right, and the supporting column supports the other square tube workpiece to move to the right, and the double-arc plate clamps the square tube workpiece and presses against the square tube workpiece in the L-shaped long frame, so that the two square tube workpieces form a right angle, and under the restriction of the L-shaped abutment plate, the two square tube workpieces will be fixed together. An anti-shake device is provided on the outer wall of the supporting column, and the anti-shake device is used to reduce the shaking of the workpiece when it is fixed. A limiting device is provided on the top right side of the anti-shake device, and the limiting device is used to reduce mutual squeezing when the workpieces are fixed.

[0007] According to the above technical solution, a Z-shaped frame is fixed on the right side of the top surface of the L-shaped base table, and the Z-shaped frame is located on the right side of the L-shaped long frame. A gas storage shell is fixed on the top surface of the L-shaped long frame, and two welding guns are fixedly installed on the bottom surface of the gas storage shell. The two welding guns pass through and are fixed on the top surface of the Z-shaped frame, and the two welding guns are located above the L-shaped long frame.

[0008] According to the above technical solution, the servo motor is located on the left side of the U-shaped slot frame, the bottom surface of the L-shaped sliding strip plate is in sliding contact with the bottom end of the U-shaped slot frame, and the two double arc plates are located above the support column.

[0009] According to the above technical solution, a limit plate is provided on the inner wall of the L-shaped long frame, the limit plate of the L-shaped long frame is located behind the Z-shaped frame, the inner wall of the sliding tube is meshed with the spiral groove of the outer wall of the screw, and a circular plate is provided on the top surface of the support column.

[0010] According to the above technical solution, an L-shaped ring is fixed to the outer wall of the support column, a U-shaped short frame is fixed to the bottom surface of the L-shaped ring, a U-shaped groove is fixed to the top surface of the L-shaped bottom table, the U-shaped groove is located below the L-shaped long frame, a rubber roller is rotatably installed on the inner wall of the U-shaped short frame, the outer wall of the rubber roller is in rolling contact with the inner bottom end of the U-shaped groove, the rubber roller rolls rightward in the U-shaped groove, and under the action of friction, the jitter of the support column when moving is reduced.

[0011] According to the above technical solution, a short column is embedded in the right bottom of the L-shaped ring, a vertical plate is fixed to the right end of the short column, a chamfering block is fixed to the right bottom of the vertical plate, the outer wall of the chamfering block is in sliding contact with the inner bottom end of the U-shaped groove, and the chamfering block scrapes off the welding slag in the U-shaped groove during the movement to the right.

[0012] According to the above technical solution, a horizontal plate is fixed to the top right side of the vertical plate, a round tube is passed through and fixed to the right side of the horizontal plate, the round tube is located in front of the U-shaped groove, and two short plates are fixed to the top surface of the L-shaped bottom table, a round rod is fixed to the top of the side where the two short plates are close to each other, and the round rod is located below the L-shaped long frame, the outer wall of the round rod is slidably connected to the inner wall of the round tube, and a circular disc is fixed to the right side of the outer wall of the round rod, and the left side of the circular disc is on the motion trajectory of the right end of the circular tube. The circular disc limits the circular tube, so that the square tube workpiece clamped by the double arc plates will not excessively squeeze the square tube workpiece in the L-shaped long frame.

[0013] According to the above technical solution, a sliding rod is penetrated and slidably installed on the right side of the horizontal plate, and the sliding rod is located behind the round tube. A square plate is fixed on the right side of the sliding rod, and a second spring is fixed on the left side of the square plate. The end of the second spring away from the square plate is fixedly connected to the right side of the horizontal plate. The second spring is sleeved on the outer wall of the sliding rod, and an L-shaped plate is fixed on the top surface of the L-shaped bottom table. The L-shaped plate is located behind the circular disc, and the outer wall of the L-shaped plate is on the motion trajectory of the right side of the square plate. Under the elastic force of the second spring, the speed of the square tube workpiece clamped by the double arc plate is slowed down.

[0014] The present invention provides a mechanical engineering workpiece welding fixture, which has the following beneficial effects: (1) The present invention uses an L-shaped bottom table, an L-shaped long frame, a U-shaped groove frame, a V-shaped ring, a screw, a servo motor, a sliding tube, an L-shaped abutment plate, an L-shaped sliding strip plate, a U-shaped thin frame, a double arc plate and a spring to cooperate with a supporting column. The L-shaped abutment plate drives another square tube workpiece to move to the right, and the supporting column supports another square tube workpiece to move to the right. The double arc plate clamps the square tube workpiece and abuts against the square tube workpiece in the L-shaped long frame, so that the two square tube workpieces form a right angle. Under the restriction of the L-shaped abutment plate, the two square tube workpieces are fixed together, preventing the welding fixture from being difficult to fix the two square tube workpieces to form a right-angle welding when fixing the square tube for welding, resulting in poor welding effect of the square tube workpieces.

[0015] (2) The present invention sets an anti-shake device so that the L-shaped ring, the U-shaped short frame and the U-shaped groove cooperate with the rubber roller. The rubber roller rolls rightward in the U-shaped groove. Under the action of friction, the shaking of the support column when moving is reduced, and the square tube workpiece is prevented from shaking violently during the movement when the welding fixture is fixing the square tube for welding, causing fixed deviation.

[0016] (3) The present invention sets an anti-shake device so that the short column and the vertical plate cooperate with the chamfering block. When the chamfering block moves to the right, the chamfering block scrapes off the welding slag in the U-shaped groove, thereby preventing a large amount of welding slag from accumulating in the U-shaped groove when the welding fixture is used to fix the square tube for welding, resulting in poor rolling effect of the rubber roller.

[0017] (4) The present invention sets a limiting device so that the horizontal plate, round tube, short plate and round rod cooperate with the round disk, and the round disk limits the round tube, so that the square tube workpiece clamped by the double arc plate will not excessively squeeze the square tube workpiece in the L-shaped long frame, and prevent the welding fixture from excessively squeezing the two square tube workpieces together when the square tube is fixed for welding, causing surface deformation of the square tube workpiece.

[0018] (5) The present invention sets a limit device so that the slide bar, the square plate and the second spring cooperate with the L-shaped plate. Under the elastic force of the second spring, the speed of the square tube workpiece clamped by the double arc plate is slowed down to prevent the two square tube workpieces from colliding with each other and causing surface damage to the square tube workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the present invention as a whole; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 It is a cross-sectional schematic diagram of the U-shaped channel frame of the present invention; Figure 4 For the present invention Figure 3 A local enlarged schematic diagram of the middle A; Figure 5 is a cross-sectional schematic diagram of the anti-shake device of the present invention; Figure 6 For the present invention Figure 5 A partial enlarged schematic diagram of point B in the middle; Figure 7 is a schematic diagram of a limiting device of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the local amplifier at C in the middle.

[0020] In the figure: 1. L-shaped bottom table; 2. L-shaped long frame; 3. U-shaped groove frame; 4. V-shaped ring; 5. screw; 6. servo motor; 7. slide tube; 8. L-shaped abutment plate; 9. L-shaped sliding strip plate; 10. U-shaped thin frame; 11. double arc plate; 12. Spring one; 13. support column; 21. Z-shaped frame; 22. gas storage shell; 23. welding gun; 14. anti-shake device; 141. L-shaped ring; 142. U-shaped short frame; 143. U-shaped strip groove; 144. rubber roller; 145. short column; 146. vertical plate; 147. chamfering block; 15. limit device; 151. horizontal plate; 152. round tube; 153. short plate; 154. round rod; 155. disc; 156. sliding rod; 157. square plate; 158. spring two; 159. L-shaped plate. DETAILED DESCRIPTION

[0021] 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 the embodiments.

[0022] See also Figure 1-Figure 8, one embodiment of the present invention is: a mechanical engineering workpiece welding fixture, comprising an L-shaped bottom table 1, an L-shaped long frame 2 is fixedly installed on the right side of the top surface of the L-shaped bottom table 1, a U-shaped slot frame 3 is fixed on the left side of the top surface of the L-shaped bottom table 1, and a slide groove is opened on the top of the front and back sides of the U-shaped slot frame 3, two V-shaped rings 4 are fixed to the bottom end of the U-shaped slot frame 3, and screws 5 are rotatably installed on the inner walls of the two V-rings 4, a servo motor 6 is fixed on the left side of the top surface of the L-shaped bottom table 1, and the right end of the rotating shaft of the servo motor 6 is fixedly connected to the left end of the screw 5, a slide tube 7 is slidably installed on the outer wall of the screw 5, and the outer wall of the slide tube 7 is slidably connected to the inner walls of the two slide grooves of the U-shaped slot frame 3, and the top surface of the slide tube 7 An L-shaped abutment plate 8 is fixed, an L-shaped slide plate 9 is fixed to the bottom of the slide tube 7, a U-shaped thin frame 10 is fixed to the right side of the top surface of the L-shaped slide plate 9, two double arc plates 11 are penetrated and slidably installed on the top of the front and back sides of the U-shaped thin frame 10, two springs 12 are fixed on the sides of the two double arc plates 11 away from each other, a support column 13 is fixed to the bottom end of the U-shaped thin frame 10, the servo motor 6 is located on the left side of the U-shaped slot frame 3, the bottom surface of the L-shaped slide plate 9 is in sliding contact with the bottom end of the U-shaped slot frame 3, the two double arc plates 11 are located above the support column 13, a limit plate is set on the inner wall of the L-shaped long frame 2, and the limit plate of the L-shaped long frame 2 is located behind the Z-shaped frame 21, the slide tube 7 The inner wall of the screw 5 is meshed with the spiral groove of the outer wall of the screw 5. A circular plate is provided on the top surface of the support column 13. The L-shaped abutment plate 8 drives the other square tube workpiece to move to the right. Under the elastic force of the spring 12, the double-arc plate 11 clamps the other square tube workpiece to move to the right. The U-shaped thin frame 10 drives the support column 13 to move to the right. The support column 13 holds the other square tube workpiece to move to the right. The double-arc plate 11 clamps the square tube workpiece and presses against the square tube workpiece in the L-shaped long frame 2, so that the two square tube workpieces form a right angle. Under the restriction of the L-shaped abutment plate 8, the two square tube workpieces will be fixed together, avoiding the welding fixture from being difficult to fix when welding the square tube. Fixing two square tube workpieces to form a right-angle welding causes poor welding effect of the square tube workpieces. An anti-shake device 14 is provided on the outer wall of the support column 13. The anti-shake device 14 is used to reduce the shaking when the workpiece is fixed. A limiting device 15 is provided on the top right side of the anti-shake device 14. The limiting device 15 is used to reduce the mutual squeezing when the workpieces are fixed. A Z-shaped frame 21 is fixed to the right side of the top surface of the L-shaped bottom table 1. The Z-shaped frame 21 is located on the right side of the L-shaped long frame 2. An air storage shell 22 is fixed to the top surface of the L-shaped long frame 2. Two welding guns 23 are fixedly installed on the bottom surface of the air storage shell 22. The two welding guns 23 penetrate and are fixed on the top surface of the Z-shaped frame 21. The two welding guns 23 are located above the L-shaped long frame 2.

[0023] When two square tube workpieces in mechanical engineering are welded at right angles, it is difficult to fix the two square tube workpieces and a large weld will occur. When in use, the L-shaped bottom table 1 supports the L-shaped long frame 2, and the operator places a square tube workpiece on the L-shaped long frame 2. The limit plate on the L-shaped long frame 2 limits the square tube workpiece. At the same time, the operator places another square tube workpiece on the L-shaped abutment plate 8, and the support column 13 supports the other square tube workpiece. The operator starts the servo motor 6 on the L-shaped bottom table 1, and the rotating shaft of the servo motor 6 starts to rotate in the positive direction. The rotating shaft of the servo motor 6 drives the screw 5 to rotate forward, and the screw 5 rotates forward in the V-shaped ring 4. The U-shaped groove frame 3 supports the V-shaped ring 4. The slide tube 7 is restricted by the slide groove of the U-shaped groove frame 3. The spiral groove of the screw 5 drives the slide tube 7 to slide to the right. The slide tube 7 drives the L-shaped abutment plate 8 to move to the right. The L-shaped abutment plate 8 drives another square tube workpiece to move to the right. At the same time, the slide tube 7 drives the L-shaped slide plate 9 to move to the right. The L-shaped slide plate 9 slides to the right in the U-shaped groove frame 3. The L-shaped slide plate 9 drives the U-shaped thin frame 10 to move to the right. The U-shaped thin frame 10 drives the double arc plate 11 to move to the right. Under the elastic force of the spring 12, the double arc plate 11 clamps another square tube workpiece to move to the right. At the same time, the U-shaped thin frame 10 drives the support column 13 to move to the right. The support column 13 holds another square tube workpiece to move to the right. The double arc plate 11 clamps the square tube workpiece and presses against the square tube workpiece in the L-shaped long frame 2, so that the two square tube workpieces form a right angle. Under the restriction of the L-shaped support plate 8, the two square tube workpieces will be fixed together to prevent the equipment from being used. It is difficult to fix two square tube workpieces to form a right-angle welding, thereby avoiding the problem that the welding fixture is difficult to fix the two square tube workpieces to form a right-angle welding when fixing the square tube for welding, resulting in poor welding effect of the square tube workpieces. When the two square tube workpieces form a right angle, the L-shaped bottom table 1 supports the Z-shaped frame 21, and the Z-shaped frame 21 supports the air storage shell 22. The operator starts the welding gun 23 on the air storage shell 22, and the welding gun 23 welds the two square tube workpieces at the right angle, so that the two square tube workpieces are welded together, which is convenient for subsequent precise welding.

[0024] See also Figure 1-Figure 8 On the basis of the above embodiment, in another embodiment of the present invention, an L-shaped ring 141 is fixed to the outer wall of the support column 13, a U-shaped short frame 142 is fixed to the bottom surface of the L-shaped ring 141, a U-shaped strip groove 143 is fixed to the top surface of the L-shaped bottom table 1, the U-shaped strip groove 143 is located below the L-shaped long frame 2, and a rubber roller 144 is rotatably installed on the inner wall of the U-shaped short frame 142, and the outer wall of the rubber roller 144 is in rolling contact with the inner bottom end of the U-shaped strip groove 143, and the U-shaped strip groove 143 drives the rubber roller 144 to move right, and the rubber roller 144 rolls right in the U-shaped strip groove 143. Under the action of friction, the jitter of the support column 13 during movement is reduced, and when the welding fixture is used to fix the square tube for welding, the square tube workpiece is prevented from vigorous jitter during movement, causing fixed deviation.

[0025] A short column 145 is embedded in the right bottom of the L-shaped ring 141, and a vertical plate 146 is fixed to the right end of the short column 145. A chamfered block 147 is fixed to the right bottom of the vertical plate 146. The outer wall of the chamfered block 147 is in sliding contact with the inner bottom end of the U-shaped groove 143. The vertical plate 146 drives the chamfered block 147 to move rightward. During the process of moving rightward, the chamfered block 147 scrapes off the welding slag in the U-shaped groove 143 to avoid a large amount of welding slag accumulating in the U-shaped groove 143 when the welding fixture is used to fix the square tube for welding, resulting in poor rolling effect of the rubber roller 144.

[0026] A horizontal plate 151 is fixed to the top right side of the vertical plate 146, and a round tube 152 passes through and is fixed to the right side of the horizontal plate 151. The round tube 152 is located in front of the U-shaped groove 143. Two short plates 153 are fixed to the top surface of the L-shaped bottom table 1, and a round rod 154 is fixed to the top of the side where the two short plates 153 are close to each other. The round rod 154 is located below the L-shaped long frame 2, and the outer wall of the round rod 154 is slidably connected to the inner wall of the round tube 152. A disc 155 is fixed to the right side of the outer wall of the round rod 154, and the left side of the disc 155 is on the motion trajectory of the right end of the round tube 152. The disc 155 limits the round tube 152, so that the square tube workpiece clamped by the double arc plate 11 will not excessively squeeze the square tube workpiece in the L-shaped long frame 2, so as to avoid excessive squeezing of the two square tube workpieces together when the welding fixture is used to fix the square tube for welding, causing surface deformation of the square tube workpiece.

[0027] A slide bar 156 is slidably installed through the right side of the horizontal plate 151, and the slide bar 156 is located behind the round tube 152. A square plate 157 is fixed to the right side of the slide bar 156, and a spring 158 is fixed to the left side of the square plate 157. The end of the spring 158 away from the square plate 157 is fixedly connected to the right side of the horizontal plate 151. The spring 158 is sleeved on the outer wall of the slide bar 156. An L-shaped plate 159 is fixed to the top surface of the L-shaped bottom table 1. The L-shaped plate 159 is located behind the disc 155, and the outer wall of the L-shaped plate 159 On the motion trajectory on the right side of the square plate 157, the square plate 157 contacts the L-shaped plate 159 during the process of moving to the right. Under the action of the extrusion force, the square plate 157 pushes the slide bar 156 to move to the left, and the slide bar 156 slides to the left in the cross plate 151. The spring 2 158 on the square plate 157 begins to shrink. Under the elastic force of the spring 2 158, the speed of the square tube workpiece clamped by the double arc plate 11 is slowed down to prevent the two square tube workpieces from colliding with each other and causing damage to the surface of the square tube workpiece.

[0028] While the U-shaped thin frame 10 drives the support column 13 to move rightward, the support column 13 drives the L-shaped ring 141 to move rightward, the L-shaped ring 141 drives the U-shaped short frame 142 to move rightward, the U-shaped short frame 142 drives the U-shaped strip groove 143 to move rightward, the U-shaped strip groove 143 drives the rubber roller 144 to move rightward, and the rubber roller 144 rolls rightward in the U-shaped strip groove 143. Under the action of friction, the shaking of the support column 13 during movement is reduced, and the support column 13 is prevented from shaking violently during the movement of the square tube workpiece when the equipment is in use, thereby avoiding the problem of fixed offset caused by the square tube workpiece shaking violently during the movement when the welding fixture is fixing the square tube for welding.

[0029] While the support column 13 drives the L-shaped ring 141 to move to the right, the L-shaped ring 141 drives the short column 145 to move to the right, the short column 145 drives the vertical plate 146 to move to the right, and the vertical plate 146 drives the chamfering block 147 to move to the right. In the process of the chamfering block 147 moving to the right, the chamfering block 147 scrapes off the welding slag in the U-shaped groove 143 to prevent a large amount of welding slag from accumulating in the U-shaped groove 143 when the equipment is in use, thereby avoiding the problem of a large amount of welding slag accumulating in the U-shaped groove 143 when the welding fixture is used to fix the square tube for welding, resulting in poor rolling effect of the rubber roller 144.

[0030] While the short column 145 drives the vertical plate 146 to move to the right, the vertical plate 146 drives the horizontal plate 151 to move to the right, and the horizontal plate 151 drives the round tube 152 to move to the right. At the same time, the L-shaped bottom table 1 supports the short plate 153, the short plate 153 supports the round rod 154, the round tube 152 moves to the right on the round rod 154, and the round rod 154 supports the disc 155. The disc 155 limits the round tube 152, so that the square tube workpiece clamped by the double arc plate 11 will not excessively squeeze the square tube workpiece in the L-shaped long frame 2, preventing the two square tube workpieces from being excessively squeezed together when the equipment is in use, thereby avoiding the problem of excessive squeezing of the two square tube workpieces together when the welding fixture is fixing the square tube for welding, causing surface deformation of the square tube workpiece.

[0031] While the vertical plate 146 drives the horizontal plate 151 to move to the right, the horizontal plate 151 drives the sliding rod 156 to move to the right, and the sliding rod 156 drives the square plate 157 to move to the right. In the process of moving to the right, the square plate 157 contacts the L-shaped plate 159. Under the action of the extrusion force, the square plate 157 pushes the sliding rod 156 to move to the left. The sliding rod 156 slides to the left in the horizontal plate 151, and the spring 2 158 on the square plate 157 begins to shrink. Under the elastic force of the spring 2 158, the speed of the square tube workpiece clamped by the double arc plate 11 is slowed down, preventing the square tube workpiece clamped by the double arc plate 11 from hitting the square tube workpiece in the L-shaped long frame 2 when the equipment is in use, thereby avoiding the problem of two square tube workpieces hitting each other and causing surface damage to the square tube workpiece.

[0032] 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 according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mechanical engineering workpiece welding fixture, comprising an L-shaped bottom table (1), an L-shaped long frame (2) being fixedly mounted on the right side of the top surface of the L-shaped bottom table (1), characterized in that: A U-shaped groove frame (3) is fixed on the left side of the top surface of the L-shaped bottom table (1), and a slide groove is opened on the top of the front and back sides of the U-shaped groove frame (3). Two V-shaped rings (4) are fixed to the bottom end of the U-shaped groove frame (3), and the inner walls of the two V-shaped rings (4) are rotatably mounted with screws (5). A servo motor (6) is fixed on the left side of the top surface of the L-shaped bottom table (1), and the right end of the rotating shaft of the servo motor (6) is fixedly connected to the left end of the screw (5). A slide tube (7) is slidably mounted on the outer wall of the screw (5), and the outer wall of the slide tube (7) is slidably connected to the inner walls of the two slide grooves of the U-shaped groove frame (3). An L-shaped abutment plate (8) is fixed to the top surface of the slide tube (7), and the bottom surface of the slide tube (7) is fixed to the bottom surface of the slide tube (7). An L-shaped sliding strip (9) is fixed, a U-shaped thin frame (10) is fixed on the right side of the top surface of the L-shaped sliding strip (9), two double-arc plates (11) are penetrated and slidably installed on the top of the front and back sides of the U-shaped thin frame (10), two springs (12) are respectively fixed on the sides of the two double-arc plates (11) away from each other, a support column (13) is fixed at the bottom end of the U-shaped thin frame (10), and an anti-shake device (14) is arranged on the outer wall of the support column (13), and the anti-shake device (14) is used to reduce the shaking of the workpiece when it is fixed, and a limiting device (15) is arranged on the top right side of the anti-shake device (14), and the limiting device (15) is used to reduce the mutual squeezing of the workpieces when they are fixed.

2. A mechanical engineering workpiece welding fixture according to claim 1, characterized in that: A Z-shaped frame (21) is fixed on the right side of the top surface of the L-shaped bottom table (1), and the Z-shaped frame (21) is located on the right side of the L-shaped long frame (2). A gas storage shell (22) is fixed on the top surface of the L-shaped long frame (2), and two welding guns (23) are fixedly installed on the bottom surface of the gas storage shell (22). The two welding guns (23) penetrate and are fixed on the top surface of the Z-shaped frame (21), and the two welding guns (23) are located above the L-shaped long frame (2).

3. A mechanical engineering workpiece welding fixture according to claim 2, characterized in that: The servo motor (6) is located on the left side of the U-shaped slot frame (3), the bottom surface of the L-shaped sliding plate (9) is in sliding contact with the bottom end of the U-shaped slot frame (3), and the two double-arc plates (11) are located above the supporting column (13).

4. A mechanical engineering workpiece welding fixture according to claim 3, characterized in that: A limit plate is provided on the inner wall of the L-shaped long frame (2), the limit plate of the L-shaped long frame (2) is located behind the Z-shaped frame (21), the inner wall of the sliding tube (7) and the spiral groove on the outer wall of the screw rod (5) are meshed with each other, and a circular plate is provided on the top surface of the support column (13).

5. A mechanical engineering workpiece welding fixture according to claim 4, characterized in that: An L-shaped ring (141) is fixed to the outer wall of the support column (13); a U-shaped short frame (142) is fixed to the bottom surface of the L-shaped ring (141); a U-shaped strip groove (143) is fixed to the top surface of the L-shaped bottom table (1); the U-shaped strip groove (143) is located below the L-shaped long frame (2); a rubber roller (144) is rotatably mounted on the inner wall of the U-shaped short frame (142); the outer wall of the rubber roller (144) is in rolling contact with the inner bottom end of the U-shaped strip groove (143).

6. A mechanical engineering workpiece welding fixture according to claim 5, characterized in that: A short column (145) is embedded in the right bottom of the L-shaped ring (141), a vertical plate (146) is fixed to the right end of the short column (145), a chamfered block (147) is fixed to the right bottom of the vertical plate (146), and the outer wall of the chamfered block (147) is in sliding contact with the inner bottom end of the U-shaped strip groove (143).

7. A mechanical engineering workpiece welding fixture according to claim 6, characterized in that: A horizontal plate (151) is fixed to the top of the right side of the vertical plate (146), a round tube (152) passes through and is fixed to the right side of the horizontal plate (151), and the round tube (152) is located in front of the U-shaped groove (143). Two short plates (153) are fixed to the top surface of the L-shaped bottom table (1), and a round rod (154) is fixed to the top of the side where the two short plates (153) are close to each other. The round rod (154) is located below the L-shaped long frame (2), and the outer wall of the round rod (154) is slidably connected to the inner wall of the round tube (152). A round disc (155) is fixed to the right side of the outer wall of the round rod (154), and the left side of the round disc (155) is located on the movement trajectory of the right end of the round tube (152).

8. A mechanical engineering workpiece welding fixture according to claim 7, characterized in that: A slide bar (156) is passed through and slidably installed on the right side of the horizontal plate (151), and the slide bar (156) is located behind the circular tube (152). A square plate (157) is fixed to the right side of the slide bar (156), and a second spring (158) is fixed to the left side of the square plate (157). The end of the second spring (158) away from the square plate (157) is fixedly connected to the right side of the horizontal plate (151), and the second spring (158) is sleeved on the outer wall of the slide bar (156). An L-shaped plate (159) is fixed to the top surface of the L-shaped bottom table (1), and the L-shaped plate (159) is located behind the circular plate (155). The outer wall of the L-shaped plate (159) is on the movement trajectory of the right side of the square plate (157).

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