An automated welding device and welding process for welding parts.

Abstract

This invention relates to the field of welding technology, and in particular to an automated welding device and welding process for welding parts, including a support frame and a welding worktable mounted on top of it. When welding is required with the chain laid horizontally on the welding worktable, i.e., the limiting sleeve in the chain is parallel to the welding worktable, a first welding positioning component clamps and positions the sidewall of the chain when welding plate-shaped parts on the outer side of the chain's outer plate. When the chain needs to be placed vertically, i.e., the entire chain is laid horizontally with the limiting sleeve in the chain perpendicular to the welding worktable, a second welding positioning component fixes the chain. When butt welding is required on the end connectors of the chain, a third welding positioning component clamps and assists in the welding process.

Description

Technical Field

[0001] This invention relates to the field of welding technology, and in particular to an automated welding apparatus and welding process for welding parts. Background Technology

[0002] An existing application document with publication number CN116810102A discloses an automated welding device for automotive parts. The device includes a base with fixed plates at both ends. A clamping mechanism is located on the lower side between the two fixed plates, and a moving mechanism is located on the upper side between the two fixed plates. A telescopic mechanism is located at the lower end of the moving mechanism. The device is described as follows: "When using the automated welding device for automotive parts, the device is installed in a suitable position, and the automotive parts are clamped and fixed by the clamping mechanism. Then, the moving mechanism drives the welding gun head to move, and then the telescopic mechanism drives the welding box and the welding gun head to rise and fall, and the welding gun head performs automatic welding on the automotive parts."

[0003] In the above solution, the clamping of parts is carried out by a clamping mechanism. It can provide a stable clamping for parts with relatively regular shapes, but it is more difficult to clamp and position parts with irregular shapes, which affects the welding work. For example, when welding chain parts, the existing technology generally places them on a worktable and then welds them using an automated welding robot. In this process, the chain parts placed on the worktable generally do not have suitable welding auxiliary clamping fixtures to ensure their working stability, or the workers have to press one end of the chain parts by hand, which is a certain degree of danger.

[0004] Therefore, this invention proposes an automated welding device and welding process for welding parts to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an automated welding device and welding process for welding parts, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automated welding device for welding parts, comprising a support frame and a welding worktable mounted on top thereof;

[0007] The top of the welding workbench is provided with mounting and positioning threaded grooves at equal intervals, and the mounting and positioning threaded grooves are connected to the welding positioning mechanism.

[0008] Preferably, the welding positioning mechanism includes a first welding positioning component, a second welding positioning component, and a third welding positioning component. The first welding positioning component includes a carrier, a placement groove, a through groove, a mounting screw, a first handle, a push positioning screw, an elbow handle, and a fastening structure. The carrier has a through groove symmetrically arranged through it, and the carrier is positioned by the mounting screw. One end of the mounting screw is fixedly provided with the first handle.

[0009] Preferably, the top of the carrier is provided with a placement groove, the push positioning screw is laterally threaded through the carrier, one end of the push positioning screw extends into the placement groove, and the other end of the push positioning screw is fixedly provided with an elbow handle.

[0010] Preferably, the fastening structure includes a compression screw, which is threaded through and disposed in the extension plate. The extension plate is symmetrically fixed on both sides of one end of the bearing body, and a second handle is fixedly disposed on one end of the compression screw.

[0011] Preferably, the second welding positioning assembly includes a fixed plate, mounting holes, a vertical support plate, a drive threaded post, a third handle, an auxiliary bearing, an extension boss, and a positioning clamping plate; the fixed plate has symmetrically arranged mounting holes, and the fixed plate is fixed to the welding workbench by screws, and a vertical support plate is fixedly arranged at the top of the fixed plate, and a drive threaded post is threadedly connected through the vertical support plate.

[0012] Preferably, a third handle is fixedly provided at one end of the drive threaded column, and an auxiliary bearing is sleeved at the other end of the drive threaded column. The auxiliary bearing is embedded in the extension boss, and the extension boss is fixedly connected to the positioning clamping plate.

[0013] Preferably, the positioning clamping plate is configured as an arc-shaped plate, and the extension boss is fixedly disposed at the middle position of the outer side wall of the positioning clamping plate.

[0014] Preferably, the third welding positioning assembly includes a connecting plate, mounting feet, a limiting groove, a limiting slider, a support body, a clamping screw, a fourth handle, and an auxiliary structure; the connecting plate is symmetrically fixed with mounting feet at both ends, the mounting feet are fixed by screws, and a limiting groove is provided through the connecting plate, and a limiting slider is slidably provided in the limiting groove, the groove opening is convex, the limiting slider is fixedly provided at the bottom end of the support body, a clamping screw is threadedly connected to the support body, and a fourth handle is fixedly provided at one end of the clamping screw, and an auxiliary structure is provided at the top of the support body.

[0015] Preferably, the auxiliary structure includes a horizontal extension plate, a vertical extension body, a docking slot, a docking plug, a connecting threaded post, and an internally threaded pull sleeve; the horizontal extension plate is fixedly disposed on one side of the top of the support body, and a vertical extension body is fixedly disposed on the top of one side of the horizontal extension plate; a docking slot is disposed at the middle position of the top of the vertical extension body; the two ends of the internally threaded pull sleeve are symmetrically threadedly connected with connecting threaded posts; a docking plug is fixedly disposed at one end of the connecting threaded post, and the bottom end of the docking plug is adapted to be inserted into the docking slot.

[0016] A welding process, the welding process comprising:

[0017] For welding operations where the chain needs to be laid horizontally on the welding workbench, i.e., the limiting sleeve in the chain is parallel to the welding workbench, when welding plate-shaped parts on the outer side of the chain's outer chain plate, the first welding positioning component clamps and positions the side wall of the chain. First, the extrusion screw is rotated by the second handle, so that one end of the extrusion screw clamps and positions the side wall of the chain. Then, the plate-shaped parts are placed in the placement groove on the carrier. Then, the push positioning screw is rotated, so that one end of the push positioning screw pushes the plate-shaped parts until one end of the plate-shaped parts contacts the side wall of the chain's outer chain plate. Finally, the push positioning screw is tightened.

[0018] When the chain needs to be placed vertically, that is, the entire chain is laid horizontally and the limiting sleeve in the chain is perpendicular to the welding worktable, the chain is fixed by the second welding positioning component. That is, the third handle is used to rotate the drive threaded column, which pushes the positioning clamping plate to clamp and position the limiting sleeve in the chain.

[0019] When it is necessary to perform butt welding on the end connectors of the chain, the third welding positioning component is used for clamping and auxiliary welding. The chain is clamped and positioned by the cooperation of the clamping screw and the auxiliary structure.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The component welding processing device designed in this invention includes a support frame and a welding worktable mounted on top of it. The top of the welding worktable is provided with equidistant mounting and positioning threaded grooves, which are connected to a welding positioning mechanism. The welding positioning mechanism includes a first welding positioning component, a second welding positioning component, and a third welding positioning component, providing better clamping flexibility. When welding a chain horizontally on the welding worktable (i.e., the limiting sleeve in the chain is parallel to the welding worktable), the first welding positioning component clamps and positions the sidewall of the chain when welding plate-shaped components on the outer side of the chain's outer plate. When the chain needs to be placed vertically (i.e., the entire chain is laid horizontally with the limiting sleeve perpendicular to the welding worktable), the second welding positioning component fixes the chain. When butt welding is required on the end connectors of the chain, the third welding positioning component clamps and assists in the welding process. Attached Figure Description

[0022] Figure 1 This is a schematic diagram showing the connection between the welding workbench and the first welding positioning component of the present invention.

[0023] Figure 2 for Figure 1 Enlarged schematic diagram of the structural connection at point A;

[0024] Figure 3 This is a schematic diagram of the structure and connection of the first welding positioning component of the present invention;

[0025] Figure 4 for Figure 3 Enlarged schematic diagram of the structural connection at point B;

[0026] Figure 5 This is a schematic diagram of the front connection of the second welding positioning component structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the rear connection of the second welding positioning component structure of the present invention;

[0028] Figure 7 This is a schematic diagram showing the connection between the welding workbench and the third welding positioning component of the present invention.

[0029] Figure 8 for Figure 7 Enlarged schematic diagram of the structural connection at point C;

[0030] Figure 9 This is a schematic diagram of the exploded left side of the structure connection of the third welding positioning component of the present invention;

[0031] Figure 10 for Figure 9Enlarged schematic diagram of the structural connection at point D;

[0032] Figure 11 This is a right-side view of the exploded connection of the third welding positioning component structure of the present invention;

[0033] Figure 12 for Figure 11 Enlarged schematic diagram of the structural connection at point E in the middle.

[0034] In the diagram: 1. Support frame; 2. Welding workbench; 21. Mounting and positioning threaded groove; 301. Bearing body; 302. Placement groove; 303. Through groove; 304. Mounting screw; 305. First handle; 306. Push positioning screw; 307. Elbow handle; 401. Extension plate; 402. Extrusion screw; 403. Second handle; 501. Fixed plate; 502. Mounting hole; 503. Vertical support plate; 504. Drive threaded column; 505. Third handle; 506. Auxiliary bearing. 06. Extension boss 507. Positioning clamping plate 508. Connecting plate body 601. Mounting foot 602. Limiting slide groove 603. Limiting slider 604. Support body 605. Clamping screw 606. Fourth handle 607. Horizontal extension plate 701. Vertical extension body 702. Docking slot 703. Docking block 704. Connecting threaded post 705. Internal threaded pull sleeve 706. Outer chain plate 8. Inner chain plate 9. Limiting sleeve 10. Connector 11. Detailed Implementation

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present invention.

[0036] Example 1: Please refer to Figures 1-12 An automated welding device for welding parts includes a support frame 1 and a welding worktable 2 on top of it; wherein mounting and positioning threaded grooves 21 are equidistantly arranged on the top of the welding worktable 2, and the mounting and positioning threaded grooves 21 are connected to a welding positioning mechanism; wherein a welding robot is placed next to the welding worktable 2 for welding parts on the welding worktable 2.

[0037] During actual welding operations, where the chain needs to be placed horizontally on the welding workbench 2, meaning the limiting sleeve in the chain is parallel to the welding workbench 2, refer to the attached diagram. Figure 2As shown, the chain includes an outer chain plate 8, an inner chain plate 9, and a limiting sleeve 10. The outer chain plate 8 and the inner chain plate 9 are placed horizontally, and the limiting sleeve 10 connected to them is in a horizontal state. During the welding of plate-shaped parts on the outer side of the outer chain plate 8, the side wall of the chain is clamped and positioned by the first welding positioning component. First, the extrusion screw 402 is rotated by the second handle 403, so that one end of the extrusion screw 402 clamps and positions the side wall of the chain. When the chain is placed on the welding worktable 2, the two ends of the chain 2 are first tightened, and then the symmetrically arranged extrusion screws are used to clamp and position the chain. 402 clamping and positioning, i.e., the welding positioning mechanism includes a first welding positioning component, a second welding positioning component and a third welding positioning component, wherein the first welding positioning component has a through groove 303 symmetrically arranged through the carrier 301, and the carrier 301 is positioned by the mounting screw 304, one end of the mounting screw 304 is fixedly provided with a first handle 305; the fastening structure includes a pressing screw 402, the pressing screw 402 is threadedly connected in the extension plate 401, the extension plate 401 is symmetrically fixed on both sides of one end of the carrier 301, and one end of the pressing screw 402 is fixedly provided with a second handle 403.

[0038] After the chain body is positioned, the plate-shaped component is placed in the placement groove 302 on the carrier 301. Then, the push positioning screw 306 is rotated, so that one end of the push positioning screw 306 pushes the plate-shaped component. At this time, the plate-shaped component will move along the placement groove 302 until one end of the plate-shaped component contacts the side wall of the outer chain plate 8. Then, the push positioning screw 306 is tightened. In this process, the chain body is first fixed, and then one end of the plate-shaped component is tightly attached to the side wall of the chain. Then, welding is performed by a welding robot. The top of the carrier 301 is provided with the placement groove 302. The push positioning screw 306 is horizontally threaded and connected in the carrier 301, and one end of the push positioning screw 306 extends into the placement groove 302. The other end of the push positioning screw 306 is fixedly provided with a bent handle 307.

[0039] Example 2: Based on Example 1, please refer to... Figures 5-6When the chain needs to be placed vertically, i.e., when welding is required on one side of the chain, the outer chain plate 8 on one side of the chain contacts the welding worktable 2, and the corresponding outer chain plate 8 on the other side is directly above it, so that the limiting sleeve 10 in the chain is perpendicular to the welding worktable 2. At this time, the chain is fixed by the second welding positioning component, i.e., the third handle 505 rotates the drive threaded column 504, so that the drive threaded column 504 pushes the positioning clamping plate 508 to clamp and position the limiting sleeve in the chain. The fixing plate 501 in the second welding positioning component has symmetrically arranged mounting holes 502, and the fixing plate 501 is fixed to the welding worktable 2 by screws, i.e., the screws pass through the mounting holes 502 on the fixing plate 501 and engage with the mounting positioning threaded groove 21 on the welding worktable 2. For the connection and fixation, the symmetrical mounting holes 502 on the fixing plate 501 are aligned with two adjacent mounting and positioning threaded grooves 21 on the welding worktable 2, and then screws are used for installation and fixation. The fixing plate 501 and the welding worktable 2 are parallel in length direction. A vertical support plate 503 is fixedly installed at the top of the fixing plate 501, and a drive threaded post 504 is threaded through the vertical support plate 503. A third handle 505 is fixedly installed at one end of the drive threaded post 504, and an auxiliary bearing 506 is sleeved at the other end of the drive threaded post 504. The auxiliary bearing 506 is embedded in the extension boss 507, and the extension boss 507 is fixedly connected to the positioning clamping plate 508. The positioning clamping plate 508 is set as an arc-shaped plate, and the extension boss 507 is fixedly installed at the middle position of the outer side wall of the positioning clamping plate 508.

[0040] In actual operation, when the third handle 505 rotates the drive threaded column 504, and the drive threaded column 504 pushes the positioning clamping plate 508, when the positioning clamping plate 508 is about to reach the position of the limiting sleeve 10 in the chain, in order to ensure that the positioning clamping plate 508 and the limiting sleeve 10 are stably fitted, one hand needs to adjust the position of the positioning clamping plate 508 so that the inner side wall of the positioning clamping plate 508 is aligned with the limiting sleeve 10, until the inner side wall of the positioning clamping plate 508 contacts and fits against the side wall of the limiting sleeve 10. The positioning clamping plate 508 is set as an arc-shaped plate, and its inner side can be adapted to fit against the side wall of the limiting sleeve 10. Then, the drive threaded column 504 is tightened, and the positioning clamping plate 508 clamps the limiting sleeve 10, thereby realizing the clamping and positioning of the chain.

[0041] Example 3: Based on Example 2, please refer to... Figure 7-12When butt welding of the chain end connectors 11 is required, after clamping and positioning the chain, and after clamping and fixing the chain with clamping screws 606, in order to improve the contact tightness between the chain end connectors 11 to be butt welded, this solution also provides an auxiliary structure on the top of the support body 605. During the welding work, this makes the welding of the chain end connectors 11 more secure. The third welding positioning component is used for clamping and auxiliary welding. The clamping screws 606 work in conjunction with the auxiliary structure to secure the chain... The clamping and positioning assembly includes a connecting plate 601 in the third welding positioning component, with mounting feet 602 symmetrically fixed at both ends. The mounting feet 602 are fixed by screws. A limiting groove 603 is provided through the connecting plate 601, and a limiting slider 604 is slidably provided in the limiting groove 603. The groove of the limiting groove 603 is convex. The limiting slider 604 is fixedly provided at the bottom end of the support body 605. A clamping screw 606 is threadedly connected in the support body 605, and a fourth handle 607 is fixedly provided at one end of the clamping screw 606.

[0042] The auxiliary structure includes a horizontal extension plate 701 fixedly mounted on one side of the top of the support body 605, and a vertical extension body 702 fixedly mounted on the top of one side of the horizontal extension plate 701. A mating slot 703 is located at the middle of the top of the vertical extension body 702. The two ends of the internal threaded pull sleeve 706 are symmetrically threaded and connected with threaded posts 705. The threads on the inner sides of the internal threaded pull sleeve 706 rotate in opposite directions, one end left-handed and the other right-handed, forming a vertical threaded channel. When the internal threaded pull sleeve 706 rotates clockwise or counterclockwise, the threaded posts 705 at both ends can simultaneously retract or extend outwards. A mating block 704 is fixedly mounted on one end of the threaded post 705, and the bottom end of the mating block 704 is connected to the mating slot 705. Three-phase matching plug-in connection: After clamping the chain, the internal threaded pull sleeve 706 is connected to the connecting threaded post 705. There are two connecting threaded posts 705 symmetrically arranged at both ends of the internal threaded pull sleeve 706. When rotating the internal threaded pull sleeve 706, the connecting threaded posts 705 at both ends of the internal threaded pull sleeve 706 simultaneously retract or extend outward. After adjusting the position of the mating block 704, the mating block 704 is inserted into the mating slot 703 on the vertical extension body 702. Then, by rotating the internal threaded pull sleeve 706, the connecting threaded posts 705 at both ends retract towards the internal threaded pull sleeve 706, which has a pulling effect relative to the two support bodies 605, and thus also has a tight contact effect at the welding position of the chain.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated welding apparatus for welding parts, comprising a support frame (1) and a welding worktable (2) on top thereof. Its features are: The top of the welding workbench (2) is provided with mounting and positioning threaded grooves (21) at equal intervals, and the mounting and positioning threaded grooves (21) are connected to the welding positioning mechanism. The welding positioning mechanism includes a first welding positioning component, a second welding positioning component, and a third welding positioning component. The first welding positioning component includes a carrier (301), a placement groove (302), a through groove (303), a mounting screw (304), a first handle (305), a push positioning screw (306), an elbow handle (307), and a fastening structure. The carrier (301) is symmetrically provided with through grooves (303), and the carrier (301) is positioned by the mounting screws (304). One end of the mounting screws (304) is fixedly provided with the first handle (305). The top of the carrier (301) is provided with a placement groove (302), and the push positioning screw (306) is laterally threaded and connected in the carrier (301). One end of the push positioning screw (306) extends into the placement groove (302), and the other end of the push positioning screw (306) is fixedly provided with an elbow handle (307). The fastening structure includes a pressing screw (402), which is threaded through and disposed in the extension plate (401). The extension plate (401) is symmetrically fixed on both sides of one end of the bearing (301), and a second handle (403) is fixedly disposed on one end of the pressing screw (402). The second welding positioning assembly includes a fixed plate (501), mounting holes (502), a vertical support plate (503), a drive threaded post (504), a third handle (505), an auxiliary bearing (506), an extension boss (507), and a positioning clamping plate (508); the fixed plate (501) is symmetrically provided with mounting holes (502), and the fixed plate (501) is fixed to the welding workbench (2) by screws, and the top of the fixed plate (501) is fixedly provided with a vertical support plate (503), and the drive threaded post (504) is provided through the threaded connection in the vertical support plate (503); The third welding positioning assembly includes a connecting plate (601), mounting feet (602), a limiting groove (603), a limiting slider (604), a support body (605), a clamping screw (606), a fourth handle (607), and an auxiliary structure. The connecting plate (601) is symmetrically fixed with mounting feet (602) at both ends. The mounting feet (602) are fixed by screws. The connecting plate (601) is provided with a limiting groove (603) through it. The limiting groove (603) is slidably provided with a limiting slider (604) in the limiting groove (603). The groove of the limiting groove (603) is convex. The limiting slider (604) is fixedly provided at the bottom end of the support body (605). The support body (605) is threadedly connected with a clamping screw (606). One end of the clamping screw (606) is fixedly provided with a fourth handle (607). The top of the support body (605) is provided with an auxiliary structure.

2. The automated welding device for component welding processing according to claim 1, characterized in that: A third handle (505) is fixedly provided at one end of the drive threaded post (504), and an auxiliary bearing (506) is sleeved at the other end of the drive threaded post (504). The auxiliary bearing (506) is embedded in the extension boss (507), and the extension boss (507) is fixedly connected to the positioning clamping plate (508).

3. The automated welding device for component welding processing according to claim 1, characterized in that: The positioning clamping plate (508) is configured as an arc-shaped plate, and the extension boss (507) is fixedly set at the middle position of the outer side wall of the positioning clamping plate (508).

4. The automated welding device for component welding processing according to claim 1, characterized in that: The auxiliary structure includes a horizontal extension plate (701), a vertical extension body (702), a docking slot (703), a docking plug (704), a connecting threaded post (705), and an internal threaded pull sleeve (706). The horizontal extension plate (701) is fixedly disposed on one side of the top of the support body (605), and a vertical extension body (702) is fixedly disposed on the top of one side of the horizontal extension plate (701). A docking slot (703) is disposed at the middle position of the top of the vertical extension body (702). The two ends of the internal threaded pull sleeve (706) are symmetrically threaded and connected with connecting threaded posts (705). A docking plug (704) is fixedly disposed at one end of the connecting threaded post (705), and the bottom end of the docking plug (704) is adapted to be inserted into the docking slot (703).

5. A welding process employing the automated welding apparatus for welding parts as described in any one of claims 1-4, characterized in that: The welding process includes: For welding work where the chain needs to be placed horizontally on the welding workbench (2) so that the limiting sleeve in the chain is parallel to the welding workbench (2), when welding plate-shaped parts on the outer side of the chain's outer chain plate, the side wall of the chain is clamped and positioned by the first welding positioning component. First, the extrusion screw (402) is rotated by the second handle (403) so that one end of the extrusion screw (402) clamps and positions the side wall of the chain. Then, the plate-shaped parts are placed in the placement groove (302) on the carrier (301). Then, the push positioning screw (306) is rotated so that one end of the push positioning screw (306) pushes the plate-shaped parts until one end of the plate-shaped parts contacts the side wall of the chain's outer chain plate. Then, the push positioning screw (306) is tightened. When the chain needs to be placed vertically, the entire chain is laid horizontally, and the limiting sleeve in the chain is perpendicular to the welding worktable (2). At this time, the chain is fixed by the second welding positioning component. The third handle (505) is used to rotate the drive threaded column (504), so that the drive threaded column (504) pushes the positioning clamping plate (508) to clamp and position the limiting sleeve in the chain. When it is necessary to perform butt welding on the end connector (11) of the chain, the third welding positioning component is used for clamping and auxiliary welding. The chain is clamped and positioned by the cooperation of the clamping screw (606) and the auxiliary structure.

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