Multi-angle adjustable welding gun clamping mechanism of welding robot

Abstract

The utility model relates to the technical field of welding, in particular to a multi-angle adjustable welding gun clamping mechanism of a welding robot, which is characterized in that a rotating block is arranged between two rotating plates, a first rotating rod is rotatably arranged in the rotating block in a penetrating manner through a bearing, the end part of the first rotating rod penetrates through the rotating block and then is fixedly inserted on the rotating plate, and a first worm gear is fixedly sleeved on the first rotating rod; a first motor is fixedly arranged on the rear side wall of the rotating block, a first worm is rotatably inserted into the rotating block through a bearing, a second rotating rod is fixedly arranged on the rotating block, a mounting frame is arranged on the upper portion of the rotating block, the second rotating rod is rotatably inserted into the mounting frame through a bearing, and the second rotating rod is fixedly sleeved with a second worm gear. And a second worm is fixedly arranged on an output shaft of the second motor, multi-angle adjustment of the welding gun can be achieved according to use requirements, the adjusting assembly can be locked, and the situation that the welding gun is loosened due to the fact that the welding gun is affected by vibration and other factors in the welding process, the adjusting assembly is loosened is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding technical field, concretely relates to a kind of welding robot multi-angle adjustable welding torch clamping mechanism. BACKGROUND

[0002] As important equipment in modern industrial manufacturing, welding robot is widely used in automobile, ship, aerospace and other fields, and welding torch clamping mechanism, as a key component of welding robot, directly affects welding quality and efficiency, and traditional welding torch clamping mechanism usually adopts fixed angle design, which is difficult to meet the welding needs of complex workpieces, in addition, the adjusting assembly of clamping mechanism lacks effective positioning restriction, and is easily affected by high-frequency vibration, impact and other factors during welding process, so that the adjusting assembly of clamping mechanism is prone to looseness, resulting in welding torch loosening, therefore, a kind of welding robot multi-angle adjustable welding torch clamping mechanism is urgently needed. SUMMARY

[0003] The utility model aims at the defects and deficiencies of prior art, provides a kind of welding robot multi-angle adjustable welding torch clamping mechanism with reasonable design to solve the above problems.

[0004] To achieve the above object, the utility model adopts the following technical scheme: it contains connecting frame, moving block and clamping frame, two moving grooves are set up on the front side wall of connecting frame, and moving block is movably arranged in the two moving grooves, and clamping frame is fixedly arranged on moving block;

[0005] It also contains:

[0006] Rotary plate, the rotary plate is two, and is fixedly arranged on the left side and the right side of the rear side wall of connecting frame respectively, and rotating block is provided between the two rotary plates, one rotating rod is rotatably provided in rotating block through bearing, and the end of one rotating rod is fixedly inserted into the rotary plate after passing through rotating block, and clamping adjusting assembly is provided on connecting frame;

[0007] One worm wheel, the one worm wheel is fixedly sleeved on one rotating rod, one motor is fixedly arranged on the rear side wall of rotating block, and one worm is rotatably inserted into rotating block through bearing, and one worm is meshingly arranged with one worm wheel, and the output shaft of one motor is connected with one worm;

[0008] Second rotating rod, the second rotating rod is fixedly arranged on rotating block, and mounting bracket is provided on the upper portion of rotating block, and second rotating rod is rotatably inserted into mounting bracket through bearing, and second worm wheel is fixedly sleeved on second rotating rod;

[0009] Second motor, the second motor is fixedly arranged on the side wall of mounting bracket, second worm is fixedly arranged on the output shaft of second motor, and second worm is rotatably inserted into mounting bracket through bearing, and second worm wheel is meshingly arranged with second worm.

[0010] Further, the clamping adjusting assembly comprises:

[0011] A bidirectional screw rod is rotatably arranged in the connecting frame through a bearing, and a moving block is rotatably arranged on the bidirectional screw rod through a thread, and the right end of the bidirectional screw rod is fixedly provided with an adjusting handle after penetrating through the connecting frame;

[0012] A ratchet wheel is fixedly arranged on the right side wall of the connecting frame, and the ratchet wheel is arranged in a circular groove arranged on the left side wall of the adjusting handle, a plurality of rotating shafts are rotatably arranged in the adjusting handle through bearings, and the one end of the rotating shaft is fixedly provided with a pawl matched with the ratchet wheel;

[0013] A plurality of first gears are fixedly arranged on the other end of the rotating shaft, and the first gears are arranged in a driving groove arranged on the right side wall of the adjusting handle, a rotating disc is rotatably arranged in the driving groove through a bearing, the left side wall of the rotating disc is fixedly provided with a second gear matched with the first gears, the left side wall of the second gear is fixedly provided with a torsion spring, and the one end of the torsion spring is fixedly connected with the inner wall of the driving groove.

[0014] Further, a rotating column is movably arranged in the torsion spring, the one end of the rotating column is fixedly connected with the second gear, and the other end of the rotating column is connected with the inner wall of the driving groove through a bearing.

[0015] Further, the right side wall of the rotating disc is fixedly provided with a pushing block, and the pushing block is fixedly provided with a rubber sleeve.

[0016] Further, a plurality of strip-shaped grooves are arranged on the arc wall in the clamping frame, a clamping strip is movably arranged in the strip-shaped groove, and a plurality of springs connected with the clamping strip are fixedly arranged in the strip-shaped groove.

[0017] Further, two piano cases are arranged in the moving groove, and the one end of the piano case is fixedly connected with the moving block.

[0018] Compared with the prior art, the welding robot multi-angle adjustable welding gun clamping mechanism has the advantages that the welding gun can be adjusted at multiple angles according to the use requirements, the adjusting assembly can be positioned and limited, the loosening of the adjusting assembly caused by vibration and other factors during the welding process is avoided, and the loosening of the welding gun is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2It is the parts explosion drawing of the connecting frame, rotating plate, rotating block, first rotating rod, first worm wheel, first motor, first worm, second rotating rod, mounting frame, second worm wheel, second motor and second worm in the utility model.

[0021] Figure 3 It is the parts explosion drawing of the moving block, clamping frame, bidirectional screw rod, clamping strip, spring and piano cover in the utility model.

[0022] Figure 4 It is the sectional view of the adjusting handle in the utility model.

[0023] Mark explanation:

[0024] Connecting frame 1, moving block 2, clamping frame 3, rotating plate 4, rotating block 5, first rotating rod 6, clamping adjusting assembly 7, bidirectional screw rod 7-1, adjusting handle 7-2, ratchet wheel 7-3, rotating shaft 7-4, pawl 7-5, first gear 7-6, rotating disc 7-7, second gear 7-8, torsional spring 7-9, first worm wheel 8, first motor 9, first worm 10, second rotating rod 11, mounting frame 12, second worm wheel 13, second motor 14, second worm 15, circular groove 16, driving groove 17, rotating column 18, pushing block 19, rubber sleeve 20, strip-shaped groove 21, clamping strip 22, spring 23, piano cover 24. Specific implementation

[0025] The technical scheme in the utility model will be described clearly and completely in conjunction with the drawings in the following, and the preferred embodiments in the description are only as examples, and all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0026] As shown in Figures 1-4 The specific implementation adopts the following technical scheme: it comprises connecting frame 1, moving block 2 and clamping frame 3, the moving block 2 is movably arranged in the two moving grooves formed in the front side wall of the connecting frame 1, the clamping frame 3 is fixedly arranged on the moving block 2, a plurality of strip-shaped grooves 21 are formed in the inner arc wall of the clamping frame 3, the clamping strip 22 is movably arranged in the strip-shaped groove 21, a plurality of springs 23 connected with the clamping strip 22 are fixedly arranged in the strip-shaped groove 21, the clamping strip 22 can realize the auxiliary clamping of the welding gun by using the rebounding thrust exerted by the compressed state of the spring 23, the clamping stability of the welding gun is improved, two piano covers 24 are arranged in the moving groove, one end of the piano cover 24 is fixedly connected with the moving block 2, the moving groove can be protected by the piano cover 24, so that the splash generated in the welding process is prevented from falling into the moving groove and affecting the movement of the moving block 2.

[0027] It further comprises:

[0028] Rotating plate 4, the rotating plate 4 is two, respectively fixedly arranged on the left and right sides of the rear side wall of the connecting frame 1, a rotating block 5 is arranged between the two rotating plates 4, a first rotating rod 6 is rotatably arranged in the rotating block 5 through a bearing, the end of the first rotating rod 6 is fixedly inserted into the rotating plate 4 after penetrating through the rotating block 5, and a clamping adjusting assembly 7 is arranged on the connecting frame 1;

[0029] A first worm wheel 8 is fixedly arranged on the first rotating rod 6, a first motor 9 is fixedly arranged on the rear side wall of the rotating block 5, a first worm 10 is rotatably inserted into the rotating block 5 through a bearing, the first worm 10 is arranged in meshing with the first worm wheel 8, and the output shaft of the first motor 9 is connected with the first worm 10;

[0030] A second rotating rod 11 is fixedly arranged on the rotating block 5, an installation frame 12 is arranged on the upper portion of the rotating block 5, the second rotating rod 11 is rotatably inserted into the installation frame 12 through a bearing, and a second worm wheel 13 is fixedly arranged on the second rotating rod 11;

[0031] A second motor 14 is fixedly arranged on the side wall of the installation frame 12, a second worm 15 is fixedly arranged on the output shaft of the second motor 14 and rotatably inserted into the installation frame 12 through a bearing, and the second worm wheel 13 is arranged in meshing with the second worm 15;

[0032] The clamping adjusting assembly 7 comprises:

[0033] A bidirectional screw rod 7-1 is rotatably inserted into the connecting frame 1 through a bearing, the moving block 2 is rotatably arranged on the bidirectional screw rod 7-1 through screwing, and an adjusting handle 7-2 is fixedly arranged on the right end of the bidirectional screw rod 7-1 through the rear of the connecting frame 1;

[0034] A ratchet wheel 7-3 is fixedly arranged on the right side wall of the connecting frame 1, and the ratchet wheel 7-3 is located in a circular groove 16 arranged on the left side wall of the adjusting handle 7-2, a plurality of rotating shafts 7-4 are rotatably arranged in the adjusting handle 7-2 through bearings, and a pawl 7-5 is fixedly arranged on one end of the rotating shaft 7-4 and abuts against the ratchet wheel 7-3;

[0035] A first gear 7-6 is fixedly sleeved on the other end of the rotating shaft 7-4, and the first gear 7-6 is located in the driving groove 17 formed in the right side wall of the adjusting handle 7-2; a rotating disc 7-7 is rotatably arranged in the driving groove 17 through a bearing; a pushing block 19 is fixedly arranged on the right side wall of the rotating disc 7-7; a rubber sleeve 20 is fixedly sleeved on the pushing block 19; the rotating disc 7-7 is more easily controlled by the staff through the pushing block 19; the friction with the hands of the staff is increased through the cooperation of the rubber sleeve 20; the hands of the staff are prevented from slipping when the pushing block 19 is pushed; a second gear 7-8 engaged with the first gears 7-6 is fixedly arranged on the left side wall of the rotating disc 7-7; a torsion spring 7-9 is fixedly arranged on the left side wall of the second gear 7-8; one end of the torsion spring 7-9 is fixedly connected with the inner wall of the driving groove 17; the ratchet wheel 7-3, the ratchet pawl 7-5, the rotating shaft 7-4, the torsion spring 7-9, the first gear 7-6 and the second gear 7-8 are cooperated to realize the locking effect of the reverse rotation of the adjusting handle 7-2; the reverse rotation of the adjusting handle 7-2 is avoided in the welding process under the influence of high-frequency vibration, impact and other factors; a rotating column 18 is movably arranged in the torsion spring 7-9; one end of the rotating column 18 is fixedly connected with the second gear 7-8; the other end of the rotating column 18 is connected with the inner wall of the driving groove 17 through a bearing; the rotating column 18 realizes the rotating connection of the second gear 7-8 in the driving groove 17; and the rotating stability of the second gear 7-8 is improved.

[0036] In the use of the utility model, the welding torch is placed between the two clamping frames 3, then the adjusting handle 7-2 is rotated, the adjusting handle 7-2 drives the bidirectional screw rod 7-1 to rotate, the moving blocks 2 on the two sides are synchronously moved to the opposite directions, the clamping and fixing of the two clamping frames 3 on the welding torch are realized, the locking of the reverse rotation of the adjusting handle 7-2 is realized under the cooperation of the ratchet wheel 7-3, the rotating shaft 7-4, the ratchet pawl 7-5, the first gear 7-6, the rotating disc 7-7, the second gear 7-8 and the torsion spring 7-9, the phenomenon that the adjusting handle 7-2 is reversely rotated in the welding process is avoided, the welding torch is loosened, when the welding torch needs to be taken off, the rotating disc 7-7 is driven to rotate through the pushing block 19, the rotating disc 7-7 drives the second gear 7-8 to rotate, the torsion spring 7-9 is twisted, the second gear 7-8 drives the first gears 7-6 to synchronously rotate, the first gears 7-6 drive the ratchet pawl 7-5 to rotate through the rotating shaft 7-4, the ratchet pawl 7-5 is separated from the ratchet wheel 7-3, then the adjusting handle 7-2 is reversely rotated, the clamping frames 3 on the two sides are synchronously moved to the opposite directions to loosen the welding torch;

[0037] When the angle of the welding gun needs to be adjusted, the first motor 9 can be started to drive the first worm 10 to rotate, and the meshing of the first worm 10 and the first worm wheel 8 enables the first rotating rod 6 to drive the connecting frame 1 to rotate through the rotating plate 4, so that the vertical angle of the welding gun is adjusted, and at the same time, the second motor 14 can be started to drive the second worm 15 to rotate, and the meshing of the second worm 15 and the second worm wheel 13 enables the second rotating rod 11 to drive the rotating block 5 to rotate, so that the horizontal angle of the welding gun is adjusted.

[0038] Compared with the prior art, the utility model has the beneficial effects that:

[0039] 1. The cooperation of the rotating plate 4, the rotating block 5, the first rotating rod 6, the first worm wheel 8, the first motor 9, the first worm 10, the second rotating rod 11, the second worm wheel 13, the second motor 14 and the second worm 15 can realize the multi-angle adjustment of the welding gun, so as to adapt to the multi-angle welding requirement of complex workpieces.

[0040] 2. The cooperation of the clamping adjusting assembly 7 can realize the reverse rotation locking of the adjusting handle 7-2 by the ratchet 7-3, the rotating shaft 7-4, the pawl 7-5, the first gear 7-6, the rotating disc 7-7, the second gear 7-8 and the torsional spring 7-9, so that the phenomenon that the two clamping frames 3 move in opposite directions in the clamping state of the welding gun is avoided.

[0041] 3. The rotating column 18 can realize the rotating connection of the second gear 7-8 in the driving groove 17, so as to improve the rotating stability of the second gear 7-8.

[0042] 4. The piano case 24 can protect the moving groove, so that the splashes generated in the welding process do not fall into the moving groove and affect the movement of the moving block 2.

[0043] For those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, and equivalent replacement of part of the technical features can be made, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A welding robot multi-angle adjustable welding gun clamping mechanism, comprising a connecting frame (1), a moving block (2) and a clamping frame (3), two moving grooves are formed on the front side wall of the connecting frame (1), and the moving blocks (2) are movably arranged in the moving grooves, and the clamping frames (3) are fixedly arranged on the moving blocks (2); characterized in that It also contains: The rotating plate (4) is two, which are fixedly arranged on the left and right sides of the rear side wall of the connecting frame (1), a rotating block (5) is arranged between the two rotating plates (4), a first rotating rod (6) is rotatably arranged in the rotating block (5) through a bearing, the end of the first rotating rod (6) is fixedly inserted into the rotating plate (4) after penetrating through the rotating block (5), and the connecting frame (1) is provided with a clamping adjusting assembly (7); A first worm wheel (8) is fixedly arranged on the first rotating rod (6), a first motor (9) is fixedly arranged on the rear side wall of the rotating block (5), a first worm (10) is rotatably arranged in the rotating block (5) through a bearing, the first worm (10) is arranged in meshing with the first worm wheel (8), and the output shaft of the first motor (9) is connected with the first worm (10); A second rotating rod (11) is fixedly arranged on the rotating block (5), an installation frame (12) is arranged on the upper portion of the rotating block (5), the second rotating rod (11) is rotatably arranged in the installation frame (12) through a bearing, and a second worm wheel (13) is fixedly arranged on the second rotating rod (11); A second motor (14) is fixedly arranged on the side wall of the installation frame (12), a second worm (15) is fixedly arranged on the output shaft of the second motor (14), the second worm (15) is rotatably arranged in the installation frame (12) through a bearing, and the second worm wheel (13) is arranged in meshing with the second worm (15).

2. The multi-angle adjustable welding gun holding mechanism of a welding robot according to claim 1, characterized in that: The clamping adjusting assembly (7) contains: A bidirectional screw rod (7-1) is rotatably arranged in the connecting frame (1) through a bearing, the moving block (2) is rotatably arranged on the bidirectional screw rod (7-1) through a thread, and an adjusting handle (7-2) is fixedly arranged on the right end of the bidirectional screw rod (7-1) after penetrating through the connecting frame (1); A ratchet wheel (7-3) is fixedly arranged on the right side wall of the connecting frame (1), and the ratchet wheel (7-3) is located in a circular groove (16) formed on the left side wall of the adjusting handle (7-2), a plurality of rotating shafts (7-4) are rotatably arranged in the adjusting handle (7-2) through bearings, and a pawl (7-5) is fixedly arranged on one end of the rotating shaft (7-4) and abuts against the ratchet wheel (7-3). A plurality of first gears (7-6) are fixedly sleeved on the other ends of the rotating shafts (7-4), and the first gears (7-6) are located in the driving grooves (17) formed in the right side wall of the adjusting handle (7-2). A rotating disc (7-7) is rotatably arranged in the driving grooves (17) through bearings. A second gear (7-8) is fixedly arranged on the left side wall of the rotating disc (7-7) and engaged with the first gears (7-6). A torsion spring (7-9) is fixedly arranged on the left side wall of the second gear (7-8). One end of the torsion spring (7-9) is fixedly connected with the inner wall of the driving grooves (17).

3. A multi-angle adjustable welding gun holding mechanism of a welding robot according to claim 2, characterized in that: A rotating column (18) is movably arranged in the torsion spring (7-9). One end of the rotating column (18) is fixedly connected with the second gear (7-8), and the other end of the rotating column (18) is connected with the inner wall of the driving grooves (17) through a bearing.

4. The multi-angle adjustable welding gun holding mechanism of a welding robot according to claim 2, characterized in that: A pushing block (19) is fixedly arranged on the right side wall of the rotating disc (7-7), and a rubber sleeve (20) is fixedly sleeved on the pushing block (19).

5. The multi-angle adjustable welding gun holding mechanism of a welding robot according to claim 1, characterized in that: A plurality of strip-shaped grooves (21) are formed in the inner arc wall of the clamping frame (3). A clamping strip (22) is movably arranged in the strip-shaped grooves (21). A plurality of springs (23) are fixedly arranged in the strip-shaped grooves (21) and connected with the clamping strip (22).

6. A multi-angle adjustable welding gun holding mechanism of a welding robot according to claim 1, characterized in that: Two piano cases (24) are arranged in the moving grooves, and one end of the piano cases (24) is fixedly connected with the moving block (2).

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