An automatic loading and unloading dynamic welding workstation

Abstract

The present invention discloses an automatic loading and unloading dynamic welding workstation, comprising a fixed seat, a welding robot is arranged at the rear end of the fixed seat, a mounting bracket is arranged at the front end of the fixed seat, a conveying mechanism is arranged on the left table top of the mounting bracket, a chuck mechanism capable of clamping a workpiece and driving the workpiece to rotate is arranged on the right side of the mounting bracket, an air claw mechanism is arranged above the right output end of the conveying mechanism, an upper cross bar is arranged on the mounting bracket, a first guide rail is arranged on the upper cross bar, the air claw mechanism comprises a first cylinder and a first connecting plate connected with the piston rod of the first cylinder, a first sliding block is arranged below the first connecting plate, a first connecting seat is vertically arranged on the side of the first connecting plate, a second cylinder for driving the first connecting seat to move up and down is arranged above the first connection, an air claw capable of rotating 90 degrees is fixed to the lower end of the first connecting seat, and two clamping heads on the air claw can be inserted into two circular holes of the workpiece; the present invention improves work efficiency and safety.

Description

Technical Field

[0001] The invention belongs to the field of welding, in particular to an automatic loading and unloading dynamic welding workstation. Background Art

[0002] With the continuous progress of my country's industrial society and the continuous improvement of the manufacturing level, people have begun to put robots into industrial production, which not only improves the production efficiency of enterprises, but also frees people from complicated physical labor. In particular, robot welding technology has become relatively mature and has been widely used in mechanical production. Welding robots have the advantages of easily achieving stable and improved welding quality, being able to operate continuously for a long time, and reducing the technical difficulty and operation intensity of operators.

[0003] In the process of welding the workpiece, the applicant found that the prior art has the following deficiencies: in the welding process using a welding robot, it is necessary to manually place the workpiece on the welding table, resulting in low work efficiency, and the current workpiece is placed stationary on the welding table, and only static welding can be achieved. Therefore, when both sides need to be welded, it is necessary to manually adjust the workpiece, resulting in low work efficiency, and because the welding head of the welding robot is at high temperature, there are safety hazards. Therefore, how to design a welding equipment that can be operated automatically to improve work efficiency and safety is particularly important. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic loading and unloading dynamic welding workstation to overcome the problems of low welding efficiency, high labor cost, poor automation and inability to achieve dynamic welding.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic loading and unloading dynamic welding workstation, comprising a fixed seat, a welding robot is arranged at the rear end of the fixed seat, a mounting bracket is arranged at the front end of the fixed seat, a conveying mechanism for conveying the workpiece from left to right is arranged on the left table of the mounting bracket, a chuck mechanism capable of clamping the workpiece and driving the workpiece to rotate is arranged on the right side of the mounting bracket, an air claw mechanism capable of moving left and right and up and down on the mounting bracket to clamp the workpiece on the conveying mechanism and then send it into the chuck mechanism is arranged above the right output end of the conveying mechanism, the welding head of the welding robot is located at the front end of the chuck mechanism and can weld the workpiece on the chuck mechanism Structure, an upper cross bar is provided on the mounting bracket, a first guide rail is provided on the upper cross bar, the air gripper mechanism includes a first cylinder located on the left side of the upper cross bar and a first connecting plate connected to the piston rod of the first cylinder, a first sliding block slidably connected to the first guide rail is provided below the first connecting plate, a first connecting seat located at the rear end of the upper cross bar and capable of moving up and down is vertically provided on the side of the first connecting plate, a second cylinder for driving the first connecting seat to move up and down is provided above the first connecting plate, an air gripper which is driven by an internal pneumatic mechanism to rotate 90 degrees and can move the workpiece toward the chuck mechanism is fixed to the lower end of the first connecting seat, and the two clamping heads on the air gripper can be inserted into the two circular holes of the workpiece.

[0006] Preferably, for the convenience of operation, the conveying mechanism includes two vertical plates distributed at intervals and a first driving motor, and at least one rotating gear is rotatably connected to the inner side of each vertical plate and is arranged at intervals, and the rotating gears on the vertical plates on both sides are aligned in pairs, the first driving motor is fixed to the outside of the left side of one of the vertical plates, and the output shaft of the first driving motor is connected to the rotating shaft through a coupling, and the rotating shaft respectively passes through two aligned rotating gears on the left sides of the two vertical plates, and a rotating chain is rotatably connected to all the rotating gears of each vertical plate, and the workpiece is mounted between the two rotating chains.

[0007] Preferably, in order to avoid the problem of workpieces falling out during transportation and to position the workpieces when they are transported to a certain position, an L-shaped pressure plate is provided on the outer side of each vertical plate to press the workpieces onto the chain. The L-shaped pressure plate is arranged inverted, and a limit baffle is provided on the right side of the mounting bracket, which is located at the ends of the two vertical plates and can limit the workpiece.

[0008] In order to facilitate clamping and to facilitate the subsequent pushing out of the workpiece, the chuck mechanism includes a chuck seat, on which is provided an insertion hole for facilitating the insertion of the workpiece, the insertion hole is arranged opposite to the workpiece on the air claw rotated 90 degrees, a push plate is provided at the front end of the insertion hole, the push plate is provided with a plug-in hole aligned with the insertion hole, and a second driving cylinder capable of pushing the push plate forward is fixed to the side of the chuck seat.

[0009] In order to improve safety, a safety baffle is provided on the mounting bracket, and the safety baffle blocks the right side of the air claw mechanism, the chuck mechanism and the conveying mechanism.

[0010] In order to facilitate collection, an inclined conveying rod is provided at the lower right side of the mounting bracket, and a workpiece collecting frame is provided below the conveying rod.

[0011] In order to improve safety, guardrails are provided around the outside of the fixing seat.

[0012] Furthermore, for the convenience of fixing, the first driving motor is fixed on a motor frame, and the motor frame is fixed on one of the vertical plates through a connecting rod.

[0013] Compared with the prior art, through the above-mentioned structural design, this structure realizes that there is no need to place the workpiece on the welding table, thereby improving safety, and improving work efficiency through transportation by the conveying mechanism. In addition, the workpiece is clamped in the air during welding, and ultimately a multi-directional dynamic welding process of the workpiece can be realized, thereby ultimately improving the overall work efficiency and truly realizing automated operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a three-dimensional diagram of the overall structure of an automated loading and unloading dynamic welding workstation in this embodiment 1;

[0016] Figure 2 This is a structural stereogram of an automated loading and unloading dynamic welding workstation in Example 1 when no guardrail is installed;

[0017] Figure 3 This is a structural stereogram of an automated loading and unloading dynamic welding workstation in Example 1 without a guardrail and a safety baffle installed;

[0018] Figure 4 Schematic diagram of the structure of the conveying mechanism in this embodiment 1;

[0019] Figure 5 This is a schematic diagram of the structure of the conveying mechanism in Embodiment 1 when no L-shaped pressing plate is installed on one side;

[0020] Figure 6 Schematic diagram of the structure of the chuck mechanism in this embodiment 1;

[0021] Figure 7It is a structural schematic diagram of the air claw mechanism and the chuck mechanism when the upper cross bar is installed in Example 1;

[0022] Figure 8 It is a schematic diagram of the rear side structure when the air claw mechanism is installed on the upper cross bar in Example 1;

[0023] Fig. 9 Schematic diagram of the structure of the workpiece in Example 1.

[0024] In the figure: a fixed seat 1; a welding robot 2; a welding head 2-1; a mounting bracket 3; a conveying mechanism 4; a chuck mechanism 5; an air claw mechanism 6; an upper cross bar 7; a first guide rail 8; a first cylinder 9; a first connecting plate 10; a first connecting seat 11; a second cylinder 12; an air claw 13; a clamping head 14; a vertical plate 15; a first driving motor 16; a rotating gear 17; a coupling 18; a rotating shaft 19; a rotating chain 20; an L-shaped pressure plate 21; a limit baffle 22; a safety baffle 23; a chuck seat 24; an insertion hole 25; a conveying rod 26; a workpiece collecting frame 27; a guardrail 28; a motor frame 30; a connecting rod 31; a push plate 29; a workpiece 32; a first sliding block 33; a circular hole 32-1; a connecting rod 32-2; a plug-in hole 34; and a second driving cylinder 35. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Please refer to the following examples to further illustrate the present invention:

[0027] Embodiment 1:

[0028] like Figure 1-Figure 9As shown, the present embodiment provides an automatic loading and unloading dynamic welding workstation, comprising a fixed seat 1, a welding robot 2 is provided at the rear end of the fixed seat 1, a mounting bracket 3 is provided at the front end of the fixed seat 1, a conveying mechanism 4 for conveying a workpiece 32 from left to right is provided on the left table of the mounting bracket 3, a chuck mechanism 5 capable of clamping the workpiece 32 and driving the workpiece 32 to rotate is provided on the right side of the mounting bracket 3, an air claw mechanism 6 capable of moving left and right and up and down on the mounting bracket 3 to clamp the workpiece 32 on the conveying mechanism 4 and then send it into the chuck mechanism 5 is provided above the right output end of the conveying mechanism 4, the welding head of the welding robot 2 is located at the front end of the chuck mechanism 5 and can weld the workpiece 32 on the chuck mechanism 5, the mounting bracket 3 is provided with An upper cross bar 7 is provided with a first guide rail 8, the pneumatic gripper mechanism 6 includes a first cylinder 9 located on the left side of the upper cross bar 7 and a first connecting plate 10 connected to the piston rod of the first cylinder 9, a first slider 33 slidably connected to the first guide rail 8 is provided below the first connecting plate 10, a first connecting seat 11 located at the rear end of the upper cross bar 7 and capable of moving up and down is vertically provided on the side of the first connecting plate 10, a second cylinder 12 is provided above the first connecting plate 10 for driving the first connecting seat 11 to move up and down, an pneumatic gripper 13 is fixed at the lower end of the first connecting seat 11, which can turn the workpiece 32 toward the chuck mechanism 5 after being driven by an internal pneumatic mechanism to rotate 90 degrees, and the two clamping heads 14 on the pneumatic gripper 13 can be inserted into the two circular holes 32-1 of the workpiece 32.

[0029] This embodiment requires Fig. 9 The workpiece 32 in the welding machine is welded. The workpiece is a T-shaped structure. Two circular holes 32-1 are provided on both sides of the head of the workpiece 32. Later, the clamping head 14 is inserted into the two circular holes 32-1 to clamp the workpiece 32, and then the connecting rod 32-2 on the workpiece is extended into the chuck mechanism 5 to fix it.

[0030] like Figure 4 , Figure 5 Preferably, for the convenience of operation, the conveying mechanism 4 includes two vertical plates 15 distributed at intervals and a first drive motor 16, and at least one rotating gear 17 is rotatably connected to the inner side of each vertical plate 15 and is arranged at intervals, and the rotating gears 17 on the vertical plates 15 on both sides are arranged in pairs, the first drive motor 16 is fixed to the outside of the left side of one of the vertical plates 15, and the output shaft of the first drive motor 16 is connected to the rotating shaft 19 through a coupling 18, and the rotating shaft 19 respectively passes through the two aligned rotating gears 17 on the left sides of the two vertical plates 15, and a rotating chain 20 is rotatably connected to all the rotating gears 17 of each vertical plate 15, and the workpiece 32 is mounted between the two rotating chains 20.

[0031] like Figure 5As shown, as a preference, in order to avoid the problem of the workpiece 32 falling out during transportation and to position the workpiece 32 when it is transported to a certain position, an L-shaped pressure plate 21 for pressing the workpiece 32 on the chain is provided on the outer side of each vertical plate 15, and the L-shaped pressure plate 21 is arranged inverted, and a limit baffle 22 located at the ends of the two vertical plates 15 and capable of limiting the workpiece 32 is provided on the right side of the mounting bracket 3. The limit baffles of the L-shaped pressure plates 21 on both sides are used to limit the top of the workpiece 32 to avoid the problem of the workpiece 32 jumping out from the top during transportation, and the limit baffle 22 is used to limit the end point of the workpiece.

[0032] like Figure 6 As shown, in order to facilitate clamping and to facilitate pushing out the workpiece later, the chuck mechanism 5 includes a chuck seat 24, on which is provided an insertion hole 25 that can be used to facilitate the insertion of the workpiece, and the insertion hole 25 is arranged opposite to the workpiece on the air claw 13 rotated 90 degrees, and a push plate 29 is provided at the front end of the insertion hole 25, and the push plate 29 is provided with a plug hole 34 aligned with the insertion hole 25, and a second driving cylinder 35 that can push the push plate 29 forward is fixed to the side of the chuck seat 24.

[0033] like Figure 2 As shown, in order to improve safety, a safety baffle 23 is provided on the mounting bracket 3 , and the safety baffle 23 blocks the right side of the air gripper mechanism 6 , the chuck mechanism 5 and the conveying mechanism 4 .

[0034] like Figure 3 As shown, in order to facilitate collection, an inclined conveying rod 26 is provided at the lower right side of the mounting bracket 3 , and a workpiece collecting frame 27 is provided below the conveying rod 26 .

[0035] like Figure 1 As shown, in order to improve safety, a guardrail 28 is provided around the outer side of the fixing base 1 .

[0036] Furthermore, for the convenience of fixing, the first driving motor 16 is fixed on a motor frame 30 , and the motor frame 30 is fixed on one of the vertical plates 15 via a connecting rod 31 .

[0037] During operation, the first step is to insert the connecting rod below the T-shaped workpiece 32 (used for the special conveyor transmission chain shaft) between the two rotating chains 20, and set its head on the rotating chain 20, and then drive the first driving motor 16 to work, drive the rotating shaft 19 to rotate, and the rotating shaft 19 drives the two rotating gears 17 connected to the rotating shaft 19 to rotate, and finally drives the two rotating chains 20 to rotate. While rotating, the rotating gears 17 arranged in pairs on the vertical plates 15 on both sides are used to drive the rotating chains 20 to rotate, so that the workpiece 32 above can be slowly conveyed to a position close to the air gripper mechanism 6, and limited by the limit baffle 22. When it reaches this position, the workpiece will not move, and the two rotating gears 17 continue to rotate back to their original positions. Since the air gripper 13 is in the initial position at this time, its clamping head 14 is located above the two circular holes 32-1 of the workpiece 32 and aligned with the two circular holes 32-1 of the workpiece 32. At this time, the second cylinder 12 is driven to work to move the air gripper 13 downward. Then, the clamping head 14 is inserted into the two circular holes 32-1 to clamp the workpiece 32, and then the second cylinder 12 drives the entire clamping head 14 to rise to align with the insertion hole 25 on the chuck mechanism 5, and the claw 13 rotates 90 degrees to change the workpiece 32 from the original vertical setting to the horizontal setting, and aligns its connecting rod 32-2 with the insertion hole 25. At this time, the first cylinder 9 is driven to work, and the entire first connecting plate 10 moves along the first guide rail 8, and the connecting rod 32-2 on the workpiece 32 is slowly moved to the insertion hole 2 5 approaches and extends into the insertion hole 25 to achieve the clamping effect on the workpiece, and then drives the welding robot 2 to drive the welding head 2-1 close to the workpiece to weld the left side of the overhead workpiece first, and then moves to the right side of the workpiece to weld the right side, and finally realizes the process of dynamic welding of the workpiece. After the welding is completed, the second driving cylinder 35 is driven to work, the push plate 29 is pushed out and the workpiece is also pushed out from the insertion hole 25, and then falls into the inclined conveying rod 26 and enters the workpiece collection frame 27. The welding robot 2 described in this embodiment can move up and down, left and right, and forward and backward, and the welding robot 2 belongs to conventional technology and can be purchased, so it is not described in detail.

[0038] At the same time, the air gripper 13 in this embodiment that can move the workpiece 32 toward the chuck mechanism 5 after being driven by the internal pneumatic mechanism to rotate 90 degrees can be purchased, and how to drive it to rotate 90 degrees by the pneumatic mechanism is also a common knowledge, so it is not described in detail. The air gripper 13 can be a 90-degree rotating air gripper on the market.

[0039] Therefore, through the above-mentioned structural design, this structure realizes that there is no need to place the workpiece on the welding table, which improves safety, and improves work efficiency through transportation by the conveying mechanism. In addition, the workpiece is clamped in the air during welding, and ultimately a multi-directional dynamic welding process of the workpiece can be realized, which ultimately improves the overall work efficiency and truly realizes automated operation.

[0040] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An automated loading and unloading dynamic welding workstation, comprising a fixed seat (1), characterized in that: A welding robot (2) is provided at the rear end of the fixed seat (1), a mounting bracket (3) is provided at the front end of the fixed seat (1), a conveying mechanism (4) for conveying a workpiece from left to right is provided on the left table of the mounting bracket (3), a chuck mechanism (5) capable of clamping the workpiece and driving the workpiece to rotate is provided on the right side of the mounting bracket (3), and an air gripper mechanism (6) capable of moving left and right and up and down on the mounting bracket (3) to clamp the workpiece on the conveying mechanism (4) and then convey it to the chuck mechanism (5) is provided above the right output end of the conveying mechanism (4). The welding robot (2) has a welding The head is located at the front end of the chuck mechanism (5) and can weld the workpiece on the chuck mechanism (5); the mounting bracket (3) is provided with an upper cross bar (7); the upper cross bar (7) is provided with a first guide rail (8); the air claw mechanism (6) comprises a first cylinder (9) located on the left side of the upper cross bar (7) and a first connecting plate (10) connected to the piston rod of the first cylinder (9); a first sliding block (33) slidably connected to the first guide rail (8) is provided below the first connecting plate (10); a first sliding block (33) located at the rear end of the upper cross bar (7) and capable of moving up and down is vertically provided on the side of the first connecting plate (10); A connecting seat (11) is provided above a first connecting plate (10) with a second cylinder (12) for driving the first connecting seat (11) to move up and down, and an air gripper (13) is fixed at the lower end of the first connecting seat (11) and can move the workpiece toward a chuck mechanism (5) after being driven by an internal pneumatic mechanism to rotate 90 degrees, wherein the workpiece is a T-shaped structure, two circular holes are provided on both sides of the head of the workpiece, and two clamping heads (14) on the air gripper (13) can be inserted into the two circular holes of the workpiece, and the chuck mechanism (5) includes a chuck seat (24), and a chuck seat (24) is provided with a A through hole (25) is provided to facilitate the insertion of a workpiece, the through hole (25) being arranged opposite to the workpiece on the air gripper (13) rotated 90 degrees, a push plate (29) is provided at the front end of the through hole (25), a plug hole (34) aligned with the through hole (25) is provided on the push plate (29), a second driving cylinder (35) capable of pushing the push plate (29) forward is fixed on the side of the chuck seat (24), and a safety baffle (23) is provided on the mounting bracket (3), the safety baffle (23) blocks the right side of the air gripper mechanism (6), the chuck mechanism (5) and the conveying mechanism (4).

2. The automatic loading and unloading dynamic welding workstation according to claim 1 is characterized in that: The conveying mechanism (4) comprises two vertical plates (15) arranged at intervals and a first driving motor (16). On the inner side of each vertical plate (15), at least one rotating gear (17) is rotatably connected and arranged at intervals. The rotating gears (17) on the vertical plates (15) on both sides are arranged in pairs. The first driving motor (16) is fixed to the outside of the left side of one of the vertical plates (15). The output shaft of the first driving motor (16) is connected to a rotating shaft (19) through a coupling (18). The rotating shaft (19) passes through two aligned rotating gears (17) on the left sides of the two vertical plates (15). A rotating chain (20) is rotatably connected to all the rotating gears (17) on each vertical plate (15), and the workpiece is mounted between the two rotating chains (20).

3. The automatic loading and unloading dynamic welding workstation according to claim 2 is characterized in that: An L-shaped pressing plate (21) for pressing the workpiece onto the chain is provided on the outer side of each vertical plate (15), the L-shaped pressing plate (21) being arranged in an inverted manner, and a limiting baffle (22) located at the ends of the two vertical plates (15) and capable of limiting the position of the workpiece is provided on the right side of the mounting bracket (3).

4. An automatic loading and unloading dynamic welding workstation according to claim 1 or 2, characterized in that: A conveying rod (26) disposed obliquely is provided at the lower right side of the mounting bracket (3), and a workpiece collecting frame (27) is provided below the conveying rod (26).

5. The automatic loading and unloading dynamic welding workstation according to claim 1 or 2, characterized in that: A guardrail (28) is provided around the outer side of the fixing seat (1).

6. The automatic loading and unloading dynamic welding workstation according to claim 2 is characterized in that: The first drive motor (16) is fixed on a motor frame (30), and the motor frame (30) is fixed on one of the vertical plates (15) via a connecting rod (31).

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