Welding positioning device for impeller machining and positioning method of welding positioning device

Abstract

The invention discloses a welding positioning device for impeller machining and a positioning method thereof, and relates to the technical field of impeller machining, the welding positioning device comprises a workbench and a positioning assembly, the center of the top of the workbench is rotationally connected with a storage table, a rack is arranged at the outer end of the top of the workbench, and a lifting assembly is arranged in the middle of the rack; the positioning assembly is arranged at the outer end of the lower portion of the lifting assembly and comprises a polished rod, a limiting sleeve, a guide part, a rubber mat, a positioning spring, a baffle, a positioning rod and a tooth groove. After the impeller base plate is placed on the upper portion of the storage table, the limiting sleeve can be lifted, the blades are inserted into the bottom of the limiting sleeve, at the moment, the upper ends of the blades can be guided through the guiding part, the convenience of inserting the blades is improved, the shape of an inner groove of the limiting sleeve is matched with the shape of the blades, and therefore the blades can be conveniently inserted. And after the blade is placed, the positioning spring can push the baffle, so that the limiting sleeve tightly presses the blade on the impeller chassis.

Description

Technical Field

[0001] The invention relates to the technical field of impeller processing, and in particular to a welding positioning device for impeller processing and a positioning method thereof. Background Art

[0002] The impeller is an important rotating component in mechanical equipment, usually used for conveying or pressurizing liquids, gases or other media. It generates centrifugal force or momentum through rotation, so that the medium obtains kinetic energy and pressure, thereby achieving the purpose of conveying, pressurizing or fluid circulation. During the impeller welding process, a positioning device is required to assist in fixing the blades.

[0003] For example, the invention with publication number CN116275825B discloses a welding positioning device for impeller processing. The invention sets a pressing component and a positioning component, and the blade positioning hole is relatively large, so it is very convenient to place the blade in the blade positioning hole. After the pressure plate contacts the first vertical rod before welding, it can drive the spherical block to move and stretch the third spring. After the spherical block moves downward, it will squeeze the triangular block. At this time, the triangular block drives the cross bar to slide and compress the second spring. During the sliding process, the cross bar can drive the positioning plate to move and press the blade until the blade is close to the inner wall of the blade positioning hole, thereby avoiding the blade from tilting in the blade positioning hole, ensuring the symmetry of the blade after welding, and improving the stability of the impeller after welding. However, in the actual use of this type of positioning device, due to the large area of ​​the positioning plate, the upper part of the impeller will be blocked, resulting in the problem that the overall operating space is small when the subsequent welding equipment is used for welding, which affects the comfort of the welding operation.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a welding positioning device and a positioning method for impeller processing are proposed. Summary of the invention

[0005] The object of the present invention is to provide a welding positioning device and a positioning method for impeller processing to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a welding positioning device for impeller processing and a positioning method thereof, comprising a workbench and a positioning assembly, wherein the top center of the workbench is rotatably connected to a storage table, and a frame is arranged at the top outer end of the workbench, and a lifting assembly is arranged in the middle of the frame, the positioning assembly is arranged at the lower outer end of the lifting assembly, the positioning assembly comprises a light rod, a limit sleeve, a guide part, a rubber pad, a positioning spring, a baffle, a positioning rod and a tooth groove, the lower outer end of the lifting assembly is slidably connected to the light rod, and the bottom of the light rod is fixed with a limit sleeve, a guide part is arranged on the inner side of the lower end of the limit sleeve, and a rubber pad is arranged inside the limit sleeve, the upper outer end of the light rod is sleeved with a positioning spring, and the bottom of the positioning spring is connected with a baffle, and the baffle is fixedly connected to the light rod, a positioning rod is arranged at the top center of the baffle, and tooth grooves are equidistantly provided on one side of the upper part of the positioning rod.

[0007] Furthermore, the lifting assembly includes a hydraulic cylinder, a pressure rod and a counterweight plate. The hydraulic cylinder is placed on the top of the frame, and the bottom of the hydraulic cylinder is rotatably connected to the pressure rod, and the upper end of the pressure rod is slidably connected to the counterweight plate.

[0008] Furthermore, the lifting assembly also includes a support tube and an end gear ring. The support tube is fixed to the bottom of the counterweight plate, and the support tube is slidably connected to the pressure rod. The end gear ring is embedded in the bottom of the support tube, and the end gear ring is fixedly connected to the storage platform.

[0009] Furthermore, the lifting assembly also includes a connecting rod, a spring seat, a sliding rod, a tooth block and a fixed sleeve. The outer side of the upper end of the pressure rod is rotatably connected to the connecting rod, and the end of the connecting rod is rotatably connected to the spring seat. A sliding rod is arranged at one end of the spring seat, and a tooth block is fixed to the end of the sliding rod. The middle outer side of the tooth block is slidably connected to the fixed sleeve, and the fixed sleeve is fixedly connected to the counterweight plate.

[0010] Furthermore, a tightening assembly is provided at the bottom of the pressure rod, and the tightening assembly includes a sliding sleeve, a pressure block and a guide block. A sliding sleeve is provided at the bottom of the pressure rod, and the sliding sleeve is slidably connected to the workbench. A pressure block is fixed at the bottom of the sliding sleeve, and the lower part of the pressure block is slidably connected to the guide block.

[0011] Furthermore, the tightening assembly also includes a tightening plate, a guide rod, a fixed plate and a return spring. A tightening plate is arranged on one side of the guide block, and a guide rod is fixed on one side of the tightening plate. The outer side of the guide rod is slidably connected to a fixed plate and fixedly connected to the storage table, and a return spring is sleeved on the outer side of the fixed plate.

[0012] Furthermore, an anti-slip ring is arranged on the outer side of the storage table, and a stabilizing component is connected to the bottom of the storage table, and the stabilizing component includes a gear ring, a clamping plate and a vertical rod. A gear ring is fixed to the inner upper end of the storage table, and clamping plates are connected to the two ends of the bottom of the gear ring, and a vertical rod is fixed to the bottom of the clamping plate, and the vertical rod is slidably connected to the workbench.

[0013] Furthermore, the stabilizing assembly also includes a compression spring, a cross bar and a rotating plate. The compression spring is sleeved on the outer side of the upper end of the vertical rod, and the compression spring fits tightly with the workbench. The lower end of the vertical rod is provided with a cross bar, and the outer side of the cross bar is slidably connected to the rotating plate.

[0014] Furthermore, the stabilizing assembly also includes a support plate, a sliding column and a pedal. The middle part of the rotating plate is rotatably connected to the support plate, and the support plate is fixedly connected to the workbench. One end of the support plate is internally slidably connected to the sliding column, and a pedal is fixed to the outer side of the middle part of the sliding column, and the pedal is rotatably connected to the workbench.

[0015] Furthermore, the impeller machining positioning method is applied to the impeller machining welding positioning device, comprising the following steps:

[0016] Step 1: The hydraulic cylinder drives the pressure rod to move upward, and drives the counterweight plate and the support tube to rise through the connecting rod, spring seat, slide rod, gear block and fixed sleeve, and then places the impeller chassis on the storage table;

[0017] Step 2: The hydraulic cylinder drives the pressure rod to move downward and insert it into the groove on the top surface of the sliding sleeve. The pressure block will squeeze the guide block, causing the support plate to move outward along the guide rod, automatically centering the impeller chassis;

[0018] Step 3: Control the pressure rod to move up a short distance, then lift the limit sleeve, and insert the blade into the bottom of the limit sleeve. After placement, the positioning spring will push the baffle, so that the limit sleeve presses the blade against the impeller chassis;

[0019] Step 4: Control the pressure rod to move down again, and push the spring seat through the connecting rod, so that the sliding rod drives the tooth block to insert into the tooth groove on the positioning rod to lock the height of the limit sleeve, and the tightening plate will also tighten and position the inside of the impeller chassis;

[0020] Step 5: Step on the pedal with your foot, the sliding column will drive the rotating plate to rotate with the lower end of the support plate as the center, so that the rotating plate can pull the cross bar, and the vertical bar will drive the clamping plate and the gear ring to separate, so as to adjust the angle of the storage table. At the same time, the end gear ring will drive the support tube to rotate, so that the upper positioning assembly can keep synchronous rotation with the storage table, and release the pedal after adjustment, the compression spring will push the sliding column to make it fit with the gear ring, quickly locking the position of the storage table after rotation.

[0021] The present invention provides a welding positioning device and a positioning method for impeller processing, which have the following beneficial effects:

[0022] 1. According to the present invention, after the impeller chassis is placed on the upper part of the storage platform, the limiting sleeve can be lifted and the blade can be inserted into the bottom of the limiting sleeve. At this time, the upper end of the blade can be guided by the guide part, which improves the convenience of inserting the blade. The shape of the internal groove of the limiting sleeve matches the shape of the blade, so the position of the blade can be positioned. After placement, the positioning spring will push the baffle so that the limiting sleeve presses the blade against the impeller chassis to facilitate welding. At the same time, since the light rod is long, there is a large operating space between the counterweight plate and the storage platform, which makes subsequent welding operations more convenient. When the hydraulic cylinder drives the pressure rod to move downward, the spring seat can be pushed by the connecting rod, so that the sliding rod drives the tooth block to be inserted into the tooth groove on the positioning rod, so that the height of the limiting sleeve can be locked, avoiding the vibration of the positioning spring affecting the stability of the welding process and the subsequent rotation process.

[0023] 2. When placing the impeller chassis on the storage platform, the present invention first starts the hydraulic cylinder to pull the connecting rod through the pressure rod, so that the tooth block can fit with one side of the fixed sleeve through the spring seat and the sliding rod. After fitting, since the sliding rod cannot move further, the counterweight plate can be driven to move up through the fixed sleeve, so that the support tube is separated from the end tooth ring on the storage platform to avoid blocking the placement of the impeller chassis. After the impeller chassis is placed on the storage platform, the hydraulic cylinder will drive the pressure rod to move downward. At this time, under the action of gravity, the support tube will first dock with the end tooth ring, and after contact, the counterweight plate cannot move downward. At this time, as the pressure rod continues to move downward, the connecting rod can rotate, so that the positioning assembly can be locked, and after locking, the counterweight plate can also be pressed by the baffle to make the positioning more stable.

[0024] 3. According to the present invention, when the pressure rod moves downward, it will also be inserted into the groove on the top surface of the sliding sleeve, and the pressure block will squeeze the guide block, so that the tightening plate will move outward along the guide rod, so that after the impeller chassis is placed on the upper part of the storage table, it can be centered to avoid deviation during placement and affect the quality of the impeller after welding. Then the pressure rod moves up a short distance to place the blade at the bottom of the positioning assembly, and after placement, as the pressure rod moves downward again, the tooth block will first be inserted into the tooth groove to lock the height of the positioning rod, and as the pressure rod continues to move downward, the tightening plate will tighten and position the inside of the impeller chassis to maintain stability during welding. During this process, the spring seat will shrink a certain distance to avoid interfering with the downward movement of the pressure rod to maintain the normal operation of the mechanical linkage.

[0025] 4. When the welding position needs to be adjusted, the pedal only needs to be stepped on to rotate it, and the slide column will drive the rotating plate to rotate with the lower end of the support plate as the center, so that the rotating plate can pull the cross bar, and the vertical bar will drive the clamping plate to separate from the gear ring, and then rotate the storage table, so as to quickly adjust the position during welding, without the need for people to hold the welding equipment and rotate around the workpiece, and when the storage table rotates, it can also drive the support tube to rotate through the end gear ring, so that the upper positioning assembly can keep synchronous rotation with the storage table, and after adjustment, release the pedal, the compression spring will push the slide column to make it fit with the gear ring, so that the position of the storage table after rotation can be quickly locked to avoid affecting the welding operation due to shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall three-dimensional structure of a welding positioning device for impeller processing according to the present invention;

[0027] Figure 2 It is a schematic diagram of the top view of the structure of a counterweight plate of a welding positioning device for impeller processing of the present invention;

[0028] Figure 3 The invention relates to a welding positioning device for impeller processing Figure 2 The enlarged structural diagram at A in the middle;

[0029] Figure 4 A schematic diagram of the three-dimensional structure of a workbench of a welding positioning device for impeller processing according to the present invention;

[0030] Figure 5 This is a bottom view structural schematic diagram of a positioning assembly of a welding positioning device for impeller processing according to the present invention;

[0031] Figure 6 It is a schematic diagram of the three-dimensional structure of a tightening assembly of a welding positioning device for impeller processing according to the present invention;

[0032] Figure 7 The present invention is a schematic diagram of the structure of a bottom view of a storage platform of a welding positioning device for impeller processing.

[0033] In the figure: 1, workbench; 2, storage table; 3, rack; 4, lifting assembly; 401, hydraulic cylinder; 402, pressure rod; 403, counterweight plate; 404, support tube; 405, end gear ring; 406, connecting rod; 407, spring seat; 408, sliding rod; 409, gear block; 410, fixing sleeve; 5, positioning assembly; 501, light rod; 502, limit sleeve; 503, guide part; 504, rubber pad; 505, positioning spring; 506, baffle; 507, positioning rod; 508, tooth groove; 6, tightening assembly; 601, sliding sleeve; 602, pressure block; 603, guide block; 604, tightening plate; 605, guide rod; 606, fixing plate; 607, return spring; 7, anti-slip ring; 8, stabilizing assembly; 801, gear ring; 802, clamping plate; 803, vertical rod; 804, compression spring; 805, cross bar; 806, rotating plate; 807, support plate; 808, sliding column; 809, pedal. DETAILED DESCRIPTION

[0034] See also Figures 1 to 7 The present invention provides a technical solution: a welding positioning device for impeller processing and a positioning method thereof, comprising a workbench 1 and a positioning assembly 5, wherein the top center of the workbench 1 is rotatably connected to a storage table 2, and a frame 3 is arranged at the top outer end of the workbench 1, and a lifting assembly 4 is arranged in the middle of the frame 3, and the positioning assembly 5 is arranged at the lower outer end of the lifting assembly 4, and the positioning assembly 5 comprises a light rod 501, a limit sleeve 502, a guide part 503, a rubber pad 504, a positioning spring 505, a baffle 506, a positioning rod 507 and a tooth groove 508, and the lifting assembly The lower outer end of component 4 is slidably connected with a light rod 501, and a limiting sleeve 502 is fixed at the bottom of the light rod 501, a guide portion 503 is provided on the inner side of the lower end of the limiting sleeve 502, and a rubber pad 504 is arranged inside the limiting sleeve 502, a positioning spring 505 is sleeved on the upper outer end of the light rod 501, and a baffle 506 is connected to the bottom of the positioning spring 505, and the baffle 506 is fixedly connected to the light rod 501, a positioning rod 507 is arranged in the center of the top of the baffle 506, and tooth grooves 508 are equidistantly provided on one side of the upper part of the positioning rod 507.

[0035] See also Figures 1 to 4The lifting assembly 4 includes a hydraulic cylinder 401, a pressure rod 402 and a counterweight plate 403. The hydraulic cylinder 401 is arranged on the top of the frame 3, and the bottom of the hydraulic cylinder 401 is rotatably connected to the pressure rod 402, and the upper outer side of the pressure rod 402 is slidably connected to the counterweight plate 403. The lifting assembly 4 also includes a support tube 404 and an end gear ring 405. The bottom of the counterweight plate 403 is fixed with a support tube 404, and the support tube 404 is slidably connected to the pressure rod 402. The bottom of the support tube 404 is embedded with an end gear ring 405, and the end gear ring 40 5 is fixedly connected to the storage platform 2, and the lifting assembly 4 also includes a connecting rod 406, a spring seat 407, a sliding rod 408, a tooth block 409 and a fixing sleeve 410. The outer side of the upper end of the pressure rod 402 is rotatably connected to the connecting rod 406, and the end of the connecting rod 406 is rotatably connected to the spring seat 407. The sliding rod 408 is arranged at one end of the spring seat 407, and the end of the sliding rod 408 is fixed with a tooth block 409. The outer side of the middle part of the tooth block 409 is slidably connected to the fixing sleeve 410, and the fixing sleeve 410 is fixedly connected to the counterweight plate 403.

[0036] The specific operation is as follows: the hydraulic cylinder 401 pulls the connecting rod 406 through the pressure rod 402, and the spring seat 407 and the sliding rod 408 can make the tooth block 409 fit with one side of the fixed sleeve 410. After fitting, since the sliding rod 408 cannot move further, the counterweight plate 403 can be driven to move upward through the fixed sleeve 410, so that the support tube 404 is separated from the end tooth ring 405 on the storage platform 2 to avoid blocking the insertion of the impeller chassis. After the impeller chassis is placed on the storage platform 2, the hydraulic cylinder 401 is controlled to drive the pressure rod 402 to move downward. At this time, under the action of gravity, the support tube 404 will first dock with the end tooth ring 405, and after docking, the support tube 404 will support the counterweight plate 403 so that it cannot move further downward. Subsequently, the limiting sleeve 502 is lifted and the blade is inserted into the bottom of the limiting sleeve 502. At this time, the upper end of the blade can be guided by the guide portion 503 to improve the convenience of blade insertion. The advantage is that the internal groove shape of the limiting sleeve 502 matches the shape of the blade, so the position of the blade can be positioned, and after placement, the positioning spring 505 will push the baffle 506, so that the limiting sleeve 502 presses the blade against the impeller chassis for welding. At the same time, since the light rod 501 is long, there is a large operating space between the counterweight plate 403 and the storage table 2, which makes the subsequent welding operation more convenient, and as the pressure rod 402 moves down again, the spring seat 407 can be pushed by the connecting rod 406, so that the sliding rod 408 drives the tooth block 409 to be inserted into the tooth groove 508 on the positioning rod 507, to lock the height of the limiting sleeve 502, to avoid the vibration of the positioning spring 505 affecting the stability of the welding process and the subsequent rotation process, and after locking, the counterweight plate 403 can also be pressed by the baffle 506, making the positioning more stable.

[0037] See also Figure 4 , Figure 6 and Figure 7 The bottom of the pressure rod 402 is provided with a tightening assembly 6, which includes a sliding sleeve 601, a pressing block 602 and a guide block 603. The bottom of the pressure rod 402 is provided with a sliding sleeve 601, and the sliding sleeve 601 is slidably connected to the workbench 1. The bottom of the sliding sleeve 601 is fixed with a pressing block 602, and the lower part of the pressing block 602 is slidably connected with the guide block 603. The tightening assembly 6 also includes a tightening plate 604, a guide rod 605, a fixing plate 606 and a return spring 60 7. A tensioning plate 604 is arranged on one side of the guide block 603, and a guide rod 605 is fixed on one side of the tensioning plate 604. A fixing plate 606 is slidably connected to the outer side of the guide rod 605 and is fixedly connected to the storage platform 2. A return spring 607 is sleeved on the outer side of the fixing plate 606. An anti-slip ring 7 is arranged on the outer side of the storage platform 2, and a stabilizing component 8 is connected to the bottom of the storage platform 2. The stabilizing component 8 includes a gear ring 801, a clamping plate 802 and a vertical rod 803. A gear ring 801 is fixed to the inner upper end of the storage table 2, and the two ends of the bottom of the gear ring 801 are connected to the clamping plate 802, and a vertical rod 803 is fixed to the bottom of the clamping plate 802, and the vertical rod 803 is slidably connected to the workbench 1. The stabilizing component 8 also includes a compression spring 804, a cross bar 805 and a rotating plate 806. The compression spring 804 is sleeved on the outer side of the upper end of the vertical rod 803, and the compression spring 804 is tightly fitted with the workbench 1. The lower end of the vertical rod 803 is fixed to the outer side of the vertical rod 803. A cross bar 805 is arranged at the end, and a rotating plate 806 is slidably connected to the outer side of the cross bar 805. The stabilizing assembly 8 also includes a support plate 807, a slide column 808 and a pedal 809. The middle part of the rotating plate 806 is rotatably connected to the support plate 807, and the support plate 807 is fixedly connected to the workbench 1. The inner part of one end of the support plate 807 is slidably connected to the slide column 808, and a pedal 809 is fixed to the outer side of the middle part of the slide column 808, and the pedal 809 is rotatably connected to the workbench 1;

[0038] The specific operation is as follows. When the pressure rod 402 moves downward and is inserted into the groove on the top surface of the sliding sleeve 601, the pressure block 602 will squeeze the guide block 603, so that the tightening plate 604 moves outward along the guide rod 605, so that after the impeller chassis is placed on the upper part of the storage table 2, it is automatically centered to avoid deflection during placement and affecting the quality of the impeller after welding. Subsequently, as the pressure rod 402 continues to move downward, the tightening plate 604 will tighten and position the inside of the impeller chassis to maintain stability during the welding process. During this process, the spring seat 407 will shrink a certain distance to avoid interfering with the downward movement of the pressure rod 402 to maintain the normal operation of the mechanical linkage. When the welding position needs to be adjusted during the welding process, you only need to step on the pedal 809 with your foot to rotate it, and the sliding column 808 will The rotating plate 806 will be driven to rotate around the lower end of the support plate 807, so that the rotating plate 806 can pull the cross bar 805, and the vertical bar 803 will drive the clamping plate 802 to separate from the gear ring 801. At this time, the anti-slip ring 7 is used to conveniently control the rotation of the storage table 2 to adjust the position during welding. There is no need for people to hold the welding equipment and rotate around the workpiece, thereby saving time and effort during welding. When the storage table 2 rotates, the end gear ring 405 can also drive the support tube 404 to rotate, so that the upper positioning component 5 can keep synchronous rotation with the storage table 2, and after adjustment, the pedal 809 is released, and the compression spring 804 will push the sliding column 808 to make it fit with the gear ring 801, so that the position of the storage table 2 after rotation can be quickly locked to avoid shaking and deviation during welding.

[0039] In summary, the welding positioning device and positioning method for impeller processing are used by first starting the hydraulic cylinder 401 to pull the connecting rod 406 through the pressure rod 402, so that the tooth block 409 can be fitted with one side of the fixed sleeve 410 through the spring seat 407 and the slide rod 408, and after fitting, the counterweight plate 403 is driven to move upward through the fixed sleeve 410, so that the support tube 404 is separated from the end tooth ring 405 on the storage platform 2. Secondly, after the impeller chassis is placed on the storage platform 2, the hydraulic cylinder 401 is controlled to drive the pressure rod 402 to move downward. At this time, the support tube 404 will first dock with the end tooth ring 405, and when the pressure rod 402 is pressed, the support tube 404 will be pressed. When the blade 502 continues to move downward, it will be inserted into the groove on the top surface of the sliding sleeve 601, and the pressing block 602 will squeeze the guide block 603, so that the tightening plate 604 moves outward along the guide rod 605, automatically positioning the impeller chassis in the center. Then, the control pressing rod 402 moves up a short distance, and then the limiting sleeve 502 is lifted, and the blade is inserted into the bottom of the limiting sleeve 502. At this time, the upper end of the blade can be guided by the guide part 503, and after placement, the positioning spring 505 will push the baffle 506, so that the limiting sleeve 502 presses the blade against the impeller chassis, and then, after the blade is placed at the bottom of the positioning assembly 5, As the pressure rod 402 moves downward again, the spring seat 407 can be pushed by the connecting rod 406, so that the sliding rod 408 drives the tooth block 409 to insert into the tooth groove 508 on the positioning rod 507 to lock the height of the limit sleeve 502. Subsequently, as the pressure rod 402 continues to move downward, the tightening plate 604 will tighten and position the inside of the impeller chassis. During this process, the spring seat 407 will shrink a distance to avoid interfering with the downward movement of the pressure rod 402. Finally, when the welding position needs to be adjusted during the welding process, the pedal 809 is stepped on with the foot to rotate it, and the sliding column 808 will drive the rotating plate 806 to support The lower end of the plate 807 is rotated as the center, so that the rotating plate 806 can pull the horizontal rod 805, and the vertical rod 803 will drive the clamping plate 802 to separate from the gear ring 801. At this time, the anti-slip ring 7 is used to conveniently control the rotation of the storage table 2 to adjust the position during welding. When the storage table 2 rotates, the end gear ring 405 can also drive the support tube 404 to rotate, so that the upper positioning component 5 can keep synchronous rotation with the storage table 2, and after adjustment, release the pedal 809, the compression spring 804 will push the sliding column 808 to make it fit with the gear ring 801, so that the position of the storage table 2 after rotation can be quickly locked.

[0040] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A welding positioning device for impeller processing, characterized in that: The invention comprises a workbench (1) and a positioning assembly (5), wherein the top center of the workbench (1) is rotatably connected to a storage table (2), and a frame (3) is arranged on the top outer end of the workbench (1), and a lifting assembly (4) is arranged in the middle of the frame (3), and the positioning assembly (5) is arranged at the lower outer end of the lifting assembly (4), and the positioning assembly (5) comprises a bare rod (501), a limiting sleeve (502), a guide part (503), a rubber pad (504), a positioning spring (505), a baffle (506), a positioning rod (507) and a tooth groove (508), and the lower outer end of the lifting assembly (4) is slidably connected to the lifting assembly (4) A polished rod (501) is provided, and a limiting sleeve (502) is fixed at the bottom of the polished rod (501), a guide portion (503) is provided on the inner side of the lower end of the limiting sleeve (502), and a rubber pad (504) is arranged inside the limiting sleeve (502), a positioning spring (505) is sleeved on the upper outer end of the polished rod (501), and a baffle (506) is connected to the bottom of the positioning spring (505), and the baffle (506) is fixedly connected to the polished rod (501), a positioning rod (507) is arranged at the center of the top of the baffle (506), and tooth grooves (508) are equidistantly provided on one side of the upper part of the positioning rod (507).

2. The welding positioning device for impeller processing according to claim 1, characterized in that: The lifting assembly (4) comprises a hydraulic cylinder (401), a pressure rod (402) and a counterweight plate (403); the hydraulic cylinder (401) is arranged on the top of the frame (3); the bottom of the hydraulic cylinder (401) is rotatably connected to the pressure rod (402); and the upper end of the pressure rod (402) is slidably connected to the counterweight plate (403).

3. The welding positioning device for impeller processing according to claim 2, characterized in that: The lifting assembly (4) further comprises a support tube (404) and an end tooth ring (405); the support tube (404) is fixed to the bottom of the counterweight plate (403), and the support tube (404) is slidably connected to the pressure rod (402); the end tooth ring (405) is embedded in the bottom of the support tube (404), and the end tooth ring (405) is fixedly connected to the storage platform (2).

4. The welding positioning device for impeller processing according to claim 3, characterized in that: The lifting assembly (4) also includes a connecting rod (406), a spring seat (407), a sliding rod (408), a tooth block (409) and a fixed sleeve (410); the outer side of the upper end of the pressure rod (402) is rotatably connected to the connecting rod (406), and the end of the connecting rod (406) is rotatably connected to the spring seat (407); one end of the spring seat (407) is provided with a sliding rod (408), and the end of the sliding rod (408) is fixed with a tooth block (409); the outer side of the middle part of the tooth block (409) is slidably connected to the fixed sleeve (410), and the fixed sleeve (410) is fixedly connected to the counterweight plate (403).

5. The welding positioning device for impeller processing according to claim 2, characterized in that: A tightening assembly (6) is arranged at the bottom of the pressure rod (402), and the tightening assembly (6) comprises a sliding sleeve (601), a pressure block (602) and a guide block (603). A sliding sleeve (601) is arranged at the bottom of the pressure rod (402), and the sliding sleeve (601) is slidably connected to the workbench (1). A pressure block (602) is fixed at the bottom of the sliding sleeve (601), and the lower part of the pressure block (602) is slidably connected to the guide block (603).

6. The welding positioning device for impeller processing according to claim 5, characterized in that: The tightening assembly (6) also includes a tightening plate (604), a guide rod (605), a fixed plate (606) and a return spring (607); a tightening plate (604) is arranged on one side of the guide block (603), and a guide rod (605) is fixed on one side of the tightening plate (604); a fixed plate (606) is slidably connected to the outer side of the guide rod (605) and is fixedly connected to the storage table (2); and a return spring (607) is sleeved on the outer side of the fixed plate (606).

7. The welding positioning device for impeller processing according to claim 1, characterized in that: An anti-slip ring (7) is arranged on the outer side of the storage platform (2), and a stabilizing component (8) is connected to the bottom of the storage platform (2), wherein the stabilizing component (8) comprises a gear ring (801), a clamping plate (802) and a vertical rod (803); a gear ring (801) is fixed to the inner upper end of the storage platform (2), and the two ends of the bottom of the gear ring (801) are connected to the clamping plate (802), and a vertical rod (803) is fixed to the bottom of the clamping plate (802), and the vertical rod (803) is slidably connected to the workbench (1).

8. The welding positioning device for impeller processing according to claim 7, characterized in that: The stabilizing assembly (8) further comprises a compression spring (804), a cross bar (805) and a rotating plate (806); the compression spring (804) is sleeved on the outer side of the upper end of the vertical bar (803), and the compression spring (804) is tightly fitted with the workbench (1); the cross bar (805) is arranged on the lower end of the vertical bar (803), and the rotating plate (806) is slidably connected to the outer side of the cross bar (805).

9. The welding positioning device for impeller processing according to claim 8, characterized in that: The stabilizing assembly (8) further comprises a support plate (807), a sliding column (808) and a pedal (809); the middle part of the rotating plate (806) is rotatably connected to the support plate (807), and the support plate (807) is fixedly connected to the workbench (1); one end of the support plate (807) is slidably connected to the sliding column (808) inside, and a pedal (809) is fixed to the outer side of the middle part of the sliding column (808), and the pedal (809) is rotatably connected to the workbench (1).

10. A positioning method for impeller machining, characterized in that: The welding positioning device for impeller processing according to any one of claims 1 to 9 comprises the following steps: Step 1: The hydraulic cylinder (401) drives the pressure rod (402) to move upward, and drives the counterweight plate (403) and the support tube (404) to rise through the connecting rod (406), the spring seat (407), the sliding rod (408), the gear block (409) and the fixing sleeve (410), and then the impeller chassis is placed on the storage platform (2); Step 2: The hydraulic cylinder (401) drives the pressure rod (402) to move downward and insert into the groove on the top surface of the sliding sleeve (601), and the pressure block (602) will squeeze the guide block (603), so that the support plate (604) moves outward along the guide rod (605), automatically positioning the impeller chassis in the center; Step 3: Control the pressure rod (402) to move up a short distance, then lift the limiting sleeve (502), and insert the blade into the bottom of the limiting sleeve (502). After placement, the positioning spring (505) will push the baffle (506), so that the limiting sleeve (502) presses the blade against the impeller chassis; Step 4: The control lever (402) is moved downward again, and the spring seat (407) can be pushed through the connecting rod (406), so that the sliding rod (408) drives the tooth block (409) to be inserted into the tooth groove (508) on the positioning rod (507), so as to lock the height of the limit sleeve (502), and the tightening plate (604) will also tighten and position the inside of the impeller chassis; Step 5: When the pedal (809) is stepped on, the slide column (808) will drive the rotating plate (806) to rotate around the lower end of the support plate (807), so that the rotating plate (806) can pull the cross bar (805), and the vertical bar (803) will drive the clamping plate (802) to separate from the gear ring (801), so as to adjust the angle of the storage platform (2). At the same time, the end gear ring (405) will drive the support tube (404) to rotate, so that the upper positioning component (5) can keep synchronous rotation with the storage platform (2), and after adjustment, the pedal (809) is released, and the compression spring (804) will push the slide column (808) to make it fit with the gear ring (801), so as to quickly lock the position of the storage platform (2) after rotation.

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