A welding device for machining parts of numerical control machine tools

Abstract

The utility model discloses a kind of welding devices for numerical control machine tool parts processing, it is related to welding device technical field.The utility model includes welding chamber and two cylindrical parts, the top of welding chamber is equipped with electric push rod one, the output shaft of electric push rod one extends to the inside of welding chamber and is slidably connected with the top of welding chamber, the output shaft of electric push rod one is fixedly connected with welding gun, the inside bottom wall of welding chamber is equipped with two guide rails.The utility model is through being provided with clamping portion, specifically when cylindrical part is clamped and fixed, electric push rod two moves with L-shaped rack one, L-shaped rack two is moved synchronously by gear transmission, to drive arc clamping plate clamping part, and increase friction by protective pad, gear rack transmission makes that part axis center is automatically aligned with rotating shaft one, rotating shaft two, adapt to different diameter parts, effectively prevent displacement when part welding, guarantee welding precision and quality.

Description

Technical Field

[0001] This utility model belongs to the technical field of welding equipment, and in particular relates to a welding device for processing CNC machine tool parts. Background Technology

[0002] CNC machine tool components are crucial in modern manufacturing, and their precision and quality directly affect the performance of the machine tool. Welding is a common process in component processing. In the welding process, it is often necessary to move the workpiece to adjust its position and place it in the right place to ensure welding accuracy. For cylindrical parts, stable clamping is extremely important during processing.

[0003] However, existing welding equipment has difficulty effectively clamping cylindrical parts of different sizes when processing them. This leads to the cylindrical parts easily shaking or shifting during the welding process, which seriously affects the welding quality, increases the scrap rate, reduces processing efficiency, and increases production costs. Utility Model Content

[0004] The purpose of this utility model is to provide a welding device for CNC machine tool parts processing. By providing a clamping part, specifically for clamping and fixing cylindrical parts, an electric push rod two drives an L-shaped rack one to move, and through gear transmission, the L-shaped rack two moves synchronously, thereby driving an arc-shaped clamping plate to clamp the part. The protective pad increases the friction, and the gear and rack transmission automatically aligns the part's axis with the rotating shaft one and rotating shaft two, adapting to parts of different diameters, effectively preventing displacement of the part during welding, ensuring welding accuracy and quality, and solving the problem that existing welding devices are difficult to effectively clamp cylindrical parts of different sizes when processing cylindrical parts.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a welding device for CNC machine tool parts processing, comprising a welding chamber and two cylindrical parts. An electric push rod is mounted on the top of the welding chamber, and the output shaft of the electric push rod extends into the interior of the welding chamber and is slidably connected to the top of the welding chamber. A welding gun is fixedly connected to the output shaft of the electric push rod. Two guide rails are mounted on the inner bottom wall of the welding chamber. A movable plate is slidably connected between the two guide rails, and a movable plate is slidably connected between the two guide rails. A rotating shaft is passed through the movable plate, and a rotating shaft is passed through the movable plate. The rotating shaft is rotatably connected to the movable plate and the movable plate, respectively. The device also includes:

[0007] The clamping part comprises two sets, each set mounted on one end of the rotating shaft and the other end of the rotating shaft, close to each other. The two sets of clamping parts are used to clamp and fix the two cylindrical parts.

[0008] A movable part, installed inside the welding chamber, is used to move two cylindrical parts.

[0009] The combination of the clamping part and the moving part allows the cylindrical part to be welded to the next side without being removed from the clamping part during the welding process.

[0010] Furthermore, the clamping part includes a clamping assembly, which is installed on the left side of the movable plate two. The clamping assembly is used to clamp and fix the cylindrical part to prevent displacement during welding; and

[0011] A drive assembly, which is installed inside the clamping assembly, is used to provide power to the clamping assembly;

[0012] The clamping component and the driving component work together to clamp and fix cylindrical parts of any size within a certain range.

[0013] Furthermore, the moving part includes a rotating assembly mounted on the right side of the moving plate two, the rotating assembly being used to drive the rotating shaft two to rotate; and

[0014] The transmission assembly moves to the left side of the second moving plate and transmits the power of the rotating assembly to the first rotating shaft, thereby driving the first rotating shaft and the second rotating shaft to rotate synchronously.

[0015] The cylindrical part, rotating shaft one, and rotating shaft two are located on the same horizontal line. Therefore, when rotating shaft one and rotating shaft two are driven to rotate synchronously by rotating assembly and transmission assembly, rotating shaft one and rotating shaft two respectively drive the cylindrical part to rotate around its own axis through clamping part.

[0016] Furthermore, the clamping assembly includes an L-shaped plate slidably connected to the left side of the movable plate two, an L-shaped rack one slidably connected to the inner wall of the L-shaped plate, an L-shaped rack two slidably connected to the inner wall of the L-shaped plate, an arc-shaped clamping plate fixedly connected to the bottom of both the L-shaped rack one and the L-shaped rack two, a protective pad fixedly connected to the inner wall of both arc-shaped clamping plates, and both protective pads contacting the outer wall of the cylindrical part;

[0017] The two protective pads are fixedly connected to the corresponding arc-shaped clamps by adhesive.

[0018] Furthermore, the drive assembly includes an electric push rod two mounted on the top of the L-shaped plate, the top of the L-shaped plate is provided with a sliding groove, the output shaft of the electric push rod two is fixedly connected to the L-shaped rack one with a connecting plate, the inner wall of the L-shaped plate is rotatably connected with a gear, and both the L-shaped rack one and the L-shaped rack two are adapted to the gear.

[0019] The connecting plate is adapted to the sliding groove.

[0020] Furthermore, the rotating assembly includes a motor mounted on the right side of the movable plate two, the output shaft of the motor being fixedly connected to a rotating shaft via a coupling, and the left end of the rotating shaft extending into the interior of the rotating shaft two and being fixedly connected to the rotating shaft two.

[0021] The motor is connected to the movable plate 2 by bolts.

[0022] Furthermore, the transmission assembly includes two sleeves fixedly connected to the right side of the movable plate, each sleeve having a sliding rod slidably connected to its inner wall, and the right ends of both sliding rods extending to the outside of their respective sleeves and fixedly connected to the movable plate; and

[0023] The left ends of both slide rods are fixedly connected to limit plates, and both limit plates are slidably connected to the inner wall of the corresponding sleeve. The inner walls of both sleeves are provided with several limit grooves, and the outer walls of both slide rods are fixedly connected with several limit protrusions. The side of each limit protrusion away from the corresponding slide rod extends into the interior of the corresponding limit groove and is slidably connected to the corresponding limit groove.

[0024] The sliding rod is limited by a limiting piece to prevent it from detaching from the sleeve.

[0025] This utility model has the following beneficial effects:

[0026] 1. By setting up a clamping part, specifically when clamping and fixing cylindrical parts, the electric push rod two drives the L-shaped rack one to move, and through gear transmission, the L-shaped rack two moves synchronously, thereby driving the arc-shaped clamping plate to clamp the parts. The protective pad increases the friction, and the gear and rack transmission makes the part's axis automatically align with the rotating shaft one and rotating shaft two, adapting to parts of different diameters, effectively preventing displacement of parts during welding, and ensuring welding accuracy and quality.

[0027] 2. By setting up a moving part, specifically a motor drives the second rotating shaft to rotate, and its torque is transmitted to the first rotating shaft through the limiting protrusion and limiting groove of the slide rod and sleeve, so as to realize the synchronous rotation of the two cylindrical parts, which facilitates all-round welding. At the same time, the first and second moving plates slide along the guide rail, and the clamping part is adjusted by the first and second rotating shafts to adapt to parts of different lengths, reduce the number of clamping times, and significantly improve welding efficiency and equipment versatility.

[0028] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0030] Figure 2 This is a front cross-sectional view of the present invention.

[0031] Figure 3 This is a schematic diagram of the guide rail structure of this utility model;

[0032] Figure 4 This is a schematic diagram of the structure of the motor of this utility model;

[0033] Figure 5 This is a cross-sectional structural diagram of the movable plate II of this utility model;

[0034] Figure 6 This is a schematic diagram of the structure of the L-shaped plate of this utility model;

[0035] Figure 7 This is a schematic diagram of the structure of the electric push rod II of this utility model;

[0036] Figure 8 This is a cross-sectional structural diagram of the sleeve of this utility model.

[0037] The attached diagram lists the components represented by each number as follows:

[0038] 1. Welding chamber; 11. Columnar part; 12. Electric push rod one; 13. Welding gun; 14. Guide rail; 141. Moving plate one; 142. Moving plate two; 143. Rotating shaft one; 144. Rotating shaft two; 2. Clamping part; 21. Clamping assembly; 211. L-shaped plate; 212. L-shaped rack one; 213. L-shaped rack two; 214. Arc-shaped clamping plate; 215. Protective pad; 22. Drive assembly; 221. Electric push rod two; 222. Slide groove; 223. Connecting plate; 224. Gear; 3. Moving part; 31. Rotating assembly; 311. Motor; 312. Rotating shaft; 32. Transmission assembly; 321. Sleeve; 322. Slide rod; 323. Limiting plate; 324. Limiting groove; 325. Limiting protrusion. Detailed Implementation

[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0040] Please see Figure 1-8As shown, this utility model is a welding device for CNC machine tool parts processing, including a welding chamber 1 and two cylindrical parts 11. An electric push rod 12 is installed on the top of the welding chamber 1. The output shaft of the electric push rod 12 extends into the interior of the welding chamber 1 and is slidably connected to the top of the welding chamber 1. A welding gun 13 is fixedly connected to the output shaft of the electric push rod 12. Two guide rails 14 are installed on the inner bottom wall of the welding chamber 1. A movable plate 141 is slidably connected between the two guide rails 14, and a movable plate 142 is slidably connected between the two guide rails 14. A rotating shaft 143 passes through the movable plate 141, and a rotating shaft 144 passes through the movable plate 142. The rotating shaft 143 and the rotating shaft 144 are rotatably connected to the movable plate 141 and the movable plate 142, respectively. The device also includes:

[0041] Clamping part 2, the clamping part 2 is provided in two sets, the two sets of clamping parts 2 are respectively installed at the close ends of the first rotating shaft 143 and the second rotating shaft 144, the two sets of clamping parts 2 are used to clamp and fix the two cylindrical parts 11; and

[0042] The movable part 3 is installed inside the welding chamber 1 and is used to move the two cylindrical parts 11.

[0043] The clamping part 2 and the moving part 3 work together to allow the cylindrical part 11 to be welded to the next side without being removed from the clamping part 2 during the welding process.

[0044] The clamping part 2 includes a clamping assembly 21, which is installed on the left side of the movable plate 142. The clamping assembly 21 is used to clamp and fix the cylindrical part 11 to prevent displacement during welding; and

[0045] Drive assembly 22 is installed inside clamping assembly 21 and is used to provide power to clamping assembly 21;

[0046] The clamping assembly 21 and the driving assembly 22 cooperate with each other to clamp and fix cylindrical parts 11 of any size within a certain range.

[0047] The moving part 3 includes a rotating assembly 31, which is mounted on the right side of the moving plate 142. The rotating assembly 31 is used to drive the rotating shaft 144 to rotate.

[0048] Transmission assembly 32, the left side of the moving plate 142, the transmission assembly 32 is used to transmit the power of the rotating assembly 31 to the rotating shaft 143, thereby driving the rotating shaft 143 and the rotating shaft 144 to rotate synchronously.

[0049] Among them, the axes of the cylindrical part 11, the first rotating shaft 143 and the second rotating shaft 144 are located on the same horizontal line. Therefore, when the rotating assembly 31 and the transmission assembly 32 drive the first rotating shaft 143 and the second rotating shaft 144 to rotate synchronously, the first rotating shaft 143 and the second rotating shaft 144 respectively drive the cylindrical part 11 to rotate around its own axis through the clamping part 2.

[0050] The clamping assembly 21 includes an L-shaped plate 211 slidably connected to the left side of the movable plate 2 142. An L-shaped rack 1 212 is slidably connected to the inner wall of the L-shaped plate 211, and an L-shaped rack 213 is slidably connected to the inner wall of the L-shaped plate 211. Arc-shaped clamping plates 214 are fixedly connected to the bottom of both L-shaped rack 1 212 and L-shaped rack 213. Protective pads 215 are fixedly connected to the inner walls of both arc-shaped clamping plates 214. Both protective pads 215 are in contact with the outer wall of the cylindrical part 11.

[0051] The teeth of L-shaped rack 212 and L-shaped rack 213 are all located on the inner top wall of L-shaped rack 212 and L-shaped rack 213.

[0052] The drive assembly 22 includes an electric push rod 221 mounted on the top of the L-shaped plate 211. The top of the L-shaped plate 211 is provided with a sliding groove 222. The output shaft of the electric push rod 221 is fixedly connected to the L-shaped rack 212. A gear 224 is rotatably connected to the inner wall of the L-shaped plate 211. Both the L-shaped rack 212 and the L-shaped rack 213 are adapted to the gear 224.

[0053] The connecting plate 223 is connected to the output shafts of the L-shaped rack 212 and the electric push rod 221 by bolts.

[0054] The rotating assembly 31 includes a motor 311 mounted on the right side of the movable plate 142. The output shaft of the motor 311 is fixedly connected to a rotating shaft 312 via a coupling. The left end of the rotating shaft 312 extends into the interior of the rotating shaft 144 and is fixedly connected to the rotating shaft 144.

[0055] Among them, the rotating shaft 312 is fixedly connected to the rotating shaft 144 by welding.

[0056] The transmission assembly 32 includes two sleeves 321 fixedly connected to the right side of the movable plate 141. Each sleeve 321 has a sliding rod 322 slidably connected to its inner wall. The right ends of both sliding rods 322 extend to the outside of their respective sleeves 321 and are fixedly connected to the movable plate 142.

[0057] The left ends of the two slide rods 322 are fixedly connected to the limiting pieces 323. The two limiting pieces 323 are slidably connected to the inner wall of the corresponding sleeve 321. The inner wall of the two sleeves 321 is provided with several limiting grooves 324. The outer wall of the two slide rods 322 is fixedly connected with several limiting protrusions 325. The side of the several limiting protrusions 325 away from the corresponding slide rod 322 extends into the interior of the corresponding limiting groove 324 and is slidably connected to the corresponding limiting groove 324.

[0058] The sliding rod 322 is further limited by the limiting groove 324 and the limiting protrusion 325, so that the sliding rod 322 can only slide along the axis of the sleeve 321.

[0059] One specific application of this embodiment is: guide rail 14: guide rail 14 guides the moving parts to move smoothly in a specific direction by means of the cooperation between the slider and the track, and bears the load and ensures the motion accuracy.

[0060] When using this device, the cylindrical part 11 to be welded is first placed between the arc-shaped clamping plates 214 of the two sets of clamping parts 2. The electric push rod 221 is then activated, and the extension and retraction of its output shaft causes the connecting plate 223 to slide along the slide groove 222, thereby moving the L-shaped rack 212. Since both the L-shaped rack 212 and the L-shaped rack 213 are meshed with the gear 224, the L-shaped rack 212 will drive the gear 224 to rotate when it moves, thereby driving the L-shaped rack 213 to move synchronously. This causes the two arc-shaped clamping plates 214 to move away from or towards each other at the same speed. When the two arc-shaped clamping plates 214 approach each other, the protective pad 215 gently contacts the outer surface of the cylindrical part 11, completing the initial positioning. The electric push rod 221 continues to apply thrust until the friction between the protective pad 215 and the surface of the cylindrical part 11 is sufficient to resist the rotational torque during the welding process. Vibration and clamping are used to fix the cylindrical part 11, thereby preventing displacement of the cylindrical part 11 during welding and affecting the final welding result. The limiting block on the arc clamp 214 slides in the limiting groove opened in the inner wall of the L-shaped plate 211 as the arc clamp 214 moves, guiding and limiting the movement path of the arc clamp 214, thereby ensuring that the arc clamp 214 only moves in a straight line and avoids skew. After welding is completed, the clamping and fixing of the cylindrical part 11 can be released by controlling the two arc clamps 214 to move away from each other through the electric push rod 221, and the cylindrical part 11 can be removed. At the same time, since the structures of the two sets of clamping parts 2 are completely symmetrical and the transmission ratio of the gear 224 and the rack is constant, no matter how the diameter of the cylindrical part 11 changes, its axis will always be automatically aligned with the axis of the first rotating shaft 143 and the second rotating shaft 144 after being clamped and fixed by the clamping part 2.

[0061] The guide rail 14 allows the movable plate 141 and movable plate 142 to move, thereby driving the clamping part 2 to move via the rotating shaft 143 and rotating shaft 144. This adjusts the relative distance between the two clamping parts 2, enabling welding of cylindrical parts 11 of different lengths. Simultaneously, due to the sliding connection between the sleeve 321 and the slide rod 322, the lengths of the sleeve 321 and the slide rod 322 will extend and lengthen accordingly when the relative distance between the two clamping parts 2 is adjusted. After the cylindrical part 11 is clamped and fixed by the clamping part 2, the electric push rod 12 drives the welding gun 13 to descend along the Z-axis to the welding start position. At the same time, the control system adjusts the output power of the welding gun 13 according to the welding process parameters to weld the cylindrical part 11. When it is necessary to rotate the cylindrical part 11 for continuous welding, the motor 311 starts, driving the rotating shaft 312 to rotate via the coupling, thereby driving the rotating shaft 144 to rotate. When the second rotating shaft 144 rotates, it drives the L-shaped plate 211 connected to the second rotating shaft 144 to rotate. The torque of the L-shaped plate 211 is transmitted to the L-shaped plate 211 connected to the first rotating shaft 143 through the spline structure of the slide rod 322 and the sleeve 321, which is composed of the limiting protrusion 325 and the limiting groove 324, so that the two cylindrical parts 11 rotate synchronously at the same angular velocity.

Claims

1. A welding device for machining CNC machine tool parts, comprising a welding chamber (1) and two cylindrical parts (11), wherein an electric push rod (12) is installed on the top of the welding chamber (1), the output shaft of the electric push rod (12) extends into the interior of the welding chamber (1) and is slidably connected to the top of the welding chamber (1), a welding gun (13) is fixedly connected to the output shaft of the electric push rod (12), two guide rails (14) are installed on the bottom wall of the interior of the welding chamber (1), a moving plate (141) is slidably connected between the two guide rails (14), a moving plate (142) is slidably connected between the two guide rails (14), a rotating shaft (143) passes through the moving plate (141), a rotating shaft (144) passes through the moving plate (142), and the rotating shaft (143) and the rotating shaft (144) are rotatably connected to the moving plate (141) and the moving plate (142) respectively, characterized in that, Also includes: The clamping part (2) is provided in two sets, and the two sets of clamping parts (2) are respectively installed at the ends of the first rotating shaft (143) and the second rotating shaft (144) that are close to each other. The two sets of clamping parts (2) are used to clamp and fix the two cylindrical parts (11); and The moving part (3) is installed inside the welding chamber (1) and is used to move the two cylindrical parts (11); The clamping part (2) and the moving part (3) work together to allow the cylindrical part (11) to be welded to the next side without having to be removed from the clamping part (2) during the welding process.

2. The welding device for machining CNC machine tool parts according to claim 1, characterized in that, The clamping part (2) includes a clamping assembly (21), which is installed on the left side of the movable plate (142). The clamping assembly (21) is used to clamp and fix the cylindrical part (11) to avoid displacement during welding. as well as A drive assembly (22) is installed inside the clamping assembly (21) and is used to provide power to the clamping assembly (21); The clamping assembly (21) and the driving assembly (22) work together to clamp and fix cylindrical parts (11) of any size within a certain range.

3. The welding device for machining CNC machine tool parts according to claim 2, characterized in that, The moving part (3) includes a rotating assembly (31) mounted on the right side of the moving plate two (142), the rotating assembly (31) being used to drive the rotating shaft two (144) to rotate; and Transmission assembly (32), the transmission assembly (32) moves the left side of the second moving plate (142), the transmission assembly (32) is used to transmit the power of the rotating assembly (31) to the first rotating shaft (143), thereby driving the first rotating shaft (143) and the second rotating shaft (144) to rotate synchronously; Among them, the axes of the cylindrical part (11), the first rotating shaft (143) and the second rotating shaft (144) are located on the same horizontal line. Therefore, when the rotating assembly (31) and the transmission assembly (32) drive the first rotating shaft (143) and the second rotating shaft (144) to rotate synchronously, the first rotating shaft (143) and the second rotating shaft (144) respectively drive the cylindrical part (11) to rotate around its own axis through the clamping part (2).

4. The welding device for machining CNC machine tool parts according to claim 3, characterized in that, The clamping assembly (21) includes an L-shaped plate (211) slidably connected to the left side of the movable plate two (142). An L-shaped rack one (212) is slidably connected to the inner wall of the L-shaped plate (211). An L-shaped rack two (213) is slidably connected to the inner wall of the L-shaped plate (211). An arc-shaped clamping plate (214) is fixedly connected to the bottom of both the L-shaped rack one (212) and the L-shaped rack two (213). A protective pad (215) is fixedly connected to the inner wall of both arc-shaped clamping plates (214). Both protective pads (215) are in contact with the outer wall of the cylindrical part (11). Among them, the two arc-shaped clamps (214) are fixedly connected to the side of the L-shaped plate (211) with limit blocks. The inner wall of the L-shaped plate (211) has two limit grooves. The two arc-shaped clamps (214) are limited and slid by the cooperation between the limit blocks and the limit grooves.

5. The welding device for machining CNC machine tool parts according to claim 4, characterized in that, The drive assembly (22) includes an electric push rod two (221) mounted on the top of the L-shaped plate (211). The top of the L-shaped plate (211) is provided with a sliding groove (222). The output shaft of the electric push rod two (221) is fixedly connected to the L-shaped rack one (212) by a connecting plate (223). The inner wall of the L-shaped plate (211) is rotatably connected to a gear (224). The L-shaped rack one (212) and the L-shaped rack two (213) are both adapted to the gear (224). Among them, the electric push rod 2 (221) is connected to the L-shaped plate (211) by bolts.

6. The welding device for machining CNC machine tool parts according to claim 5, characterized in that, The rotating assembly (31) includes a motor (311) mounted on the right side of the movable plate two (142). The output shaft of the motor (311) is fixedly connected to a rotating shaft (312) via a coupling. The left end of the rotating shaft (312) extends into the interior of the rotating shaft two (144) and is fixedly connected to the rotating shaft two (144). The motor (311) is connected to the movable plate (142) by bolts.

7. A welding device for machining CNC machine tool parts according to claim 6, characterized in that, The transmission assembly (32) includes two sleeves (321) fixedly connected to the right side of the first movable plate (141). Each sleeve (321) has a sliding rod (322) slidably connected to its inner wall. The right ends of both sliding rods (322) extend to the outside of their respective sleeves (321) and are fixedly connected to the second movable plate (142). The left ends of the two slide rods (322) are fixedly connected to limiting pieces (323), and the two limiting pieces (323) are slidably connected to the inner wall of the corresponding sleeve (321). The inner walls of the two sleeves (321) are provided with a plurality of limiting grooves (324). The outer walls of the two slide rods (322) are fixedly connected with a plurality of limiting protrusions (325). The side of the plurality of limiting protrusions (325) away from the corresponding slide rod (322) extends into the interior of the corresponding limiting groove (324) and is slidably connected to the corresponding limiting groove (324). The limiting groove (324) and the limiting protrusion (325) are provided in four ways, and the four limiting grooves (324) are adapted to the corresponding limiting protrusions (325).

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