CN111992956A - Clamping device for welding robot - Google Patents

Abstract

The invention is suitable for the technical field of welding robots, and provides a clamping device for a welding robot, which comprises a bottom plate, wherein a fixed rod and a moving rod are arranged on the upper side of a transverse plate, the fixed rod is fixed on the transverse plate, an adjusting assembly for adjusting the position of the moving rod is arranged on the transverse plate, a second support is hinged to the fixed rod and the moving rod, and a flat plate is arranged on the second support; install two sixth supports that the symmetry set up on the carousel, it has the ejector pin to articulate on the sixth support, and the one end that the sixth support was kept away from to the ejector pin articulates there is the fifth support, installs the arc pole on the fifth support, is equipped with the pull subassembly that is used for driving the ejector pin rotation on the carousel. The clamping device for the welding robot adjusts the distance between the two flat plates by moving the telescopic rod in the slot so as to clamp the part with the square plane structure; and then the second connecting rod is utilized to drive the ejector rod to expand or contract by moving the pull rod, so that the arc-shaped rod can clamp the part of the arc-shaped surface structure.

Description

A clamping device for welding robot

technical field

The invention belongs to the technical field of welding robots, and in particular relates to a clamping device for welding robots.

Background technique

A Chinese patent with the authorization announcement number CN210476035U discloses a clamping device for a welding robot. The bottom inner wall of the box is provided with a push rod motor, the output shaft of the push rod motor is fixedly connected with a vertical rod, and the right side of the vertical rod is fixed A first rack is connected, a first gear is arranged on the front of the first rack, a first rotating shaft is fixedly sleeved inside the first gear, and a second gear is fixedly sleeved on the outer ring at one end of the rotating shaft away from the first gear. The outer ring is sleeved with a first bearing fixed on the inner wall of the top of the box body, and the left side of the second gear is provided with a third gear. The parts are fixed and the welding is more accurate.

However, the above-mentioned technical solutions still have the following shortcomings in actual use: only parts with a square plane structure can be clamped, and it is difficult to clamp parts with a curved surface structure, which limits the scope of use.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a clamping device for a welding robot to solve the problems raised in the above-mentioned background art.

To achieve the above object, the present invention provides the following technical solutions:

A clamping device for a welding robot comprises a bottom plate, a turntable is arranged on the upper side of the bottom plate, and a horizontal plate is fixed on the turntable; a fixed rod and a moving rod are arranged on the upper side of the horizontal plate, and the fixed rod is fixed on the horizontal plate, The horizontal plate is provided with an adjustment component for adjusting the position of the moving rod, a second support is hinged on the fixed rod and the moving rod, and a flat plate is installed on the second support;

Two symmetrically arranged sixth supports are installed on the turntable, a top rod is hinged on the sixth support, a fifth support is hinged on the end of the top rod away from the sixth support, and an arc is installed on the fifth support. The turntable is provided with a pull-out assembly for driving the ejector rod to rotate; when in use, the position of the moving rod can be adjusted by adjusting the assembly, and then the distance between the two flat plates can be adjusted so as to clamp the parts of the square plane structure; Under the hinged cooperation of the second support, the plate can be rotated, and the plate can be closely attached to the inclined surface of the part, which is convenient for clamping the part with the inclined surface; and then through the cooperation of the ejector rod, the fifth support and the sixth support, the use The pull-out assembly can drive the ejector rod to expand or contract, so that the arc-shaped rod can clamp the parts of the arc structure.

As a further solution of the present invention: the adjustment assembly includes a cross bar and a telescopic bar;

The horizontal plate is provided with a slot that is slidably matched with the telescopic rod, the vertical rod is fixed on the telescopic rod, the horizontal rod is fixed on the vertical rod, the moving rod is installed on the horizontal rod, and the horizontal plate is threadedly connected with bolts; Move the telescopic rod in the slot, the horizontal rod and the moving rod move with it, adjust the position of the moving rod, tighten the bolt, and press the telescopic rod to lock the position of the moving rod.

As a further solution of the present invention: the drawer assembly includes a pull rod, a second connecting rod and a second sliding sleeve;

The second sliding sleeve is installed on the turntable, the pull rod is slidably arranged on the turntable and the second sliding sleeve, the second sliding sleeve is also threadedly connected with bolts, the pull rod and the top rod are both provided with a seventh support, and the second sliding sleeve is also provided with a seventh support. The rod is hinged on the seventh support; by moving the pull rod, the second link is used to drive the top rod to expand or contract.

As a further solution of the present invention: a first support is arranged on the bottom plate, a vertical plate is hinged on the first support, a rotating shaft is connected to the bearing on the vertical plate, the rotating plate is installed on the rotating shaft, and the vertical plate is provided with a drive for driving The drive assembly for the rotation of the shaft, the bottom plate is provided with a locking assembly for locking the angle of the vertical plate; the drive assembly can drive the shaft to rotate, and the turntable and the clamped parts rotate together, so that the welding robot can weld different positions of the parts; Under the hinged cooperation between the first support and the vertical plate, the vertical plate can be rotated, thereby adjusting the angle of the parts, which is convenient for the welding robot to weld the parts from different angles to meet different angle requirements.

As a further solution of the present invention: the drive assembly includes a motor, a first gear and a second gear;

The vertical plate is provided with a bracket, the motor is mounted on the bracket, the output shaft of the motor is connected with the first gear, the second gear is arranged on the rotating shaft, and the first gear meshes with the second gear; the first gear is driven by the motor Rotate, and use the second gear to drive the shaft to rotate.

As a further solution of the present invention: the locking assembly includes a first connecting rod, a guide rod and a toothed plate;

The bottom plate is provided with a support block, a guide rod and a toothed plate are fixed on the support block, a sliding block is slidably arranged on the guide rod, a fourth support is provided on both the sliding block and the vertical plate, and the first connecting rod is hinged on the first connecting rod. On the four supports, the bottom of the slider is fixed with a vertical strut, the vertical strut is provided with a first horizontal strut and a second horizontal strut, and the first horizontal strut and the second horizontal strut are provided with an eighth The support, the eighth support is hinged with a locking rod, the locking rod is connected with a compression spring, and the teeth on the upper and lower sides of the tooth plate are in opposite directions; On the teeth, the use of teeth in different directions on the upper and lower sides restricts the slider and the vertical strut from moving neither to the left nor to the right, thereby locking the angle of the vertical plate; when it needs to be adjusted, just press the locking lever. At one end, the locking lever can be separated from the teeth.

As a further solution of the present invention: a hydraulic cylinder is arranged on the cross bar, a first sliding sleeve is arranged on the telescopic end of the hydraulic cylinder, a sliding rod is slidably arranged on the first sliding sleeve, and a third support is hinged on the sliding rod. The bottom of the third support is provided with a pressure plate; the first sliding sleeve is moved up and down by the hydraulic cylinder, and the sliding rod is moved in translation, so that the pressure plate is pressed on the upper part of the part and the stability of the part is enhanced.

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

1. The clamping device for the welding robot moves the telescopic rod in the slot, the horizontal rod and the moving rod move with it, adjust the position of the moving rod, tighten the bolt, and press the telescopic rod to lock the position of the moving rod. Then adjust the distance between the two flat plates so as to clamp the parts of the square plane structure; at the same time, under the hinged cooperation of the second support, the flat plate can be rotated, and the flat plate can be closely attached to the inclined surface of the part, which is convenient for clamping the inclined surface. Then, through the cooperation of the ejector rod, the fifth support and the sixth support, the pull rod is moved, and the second link is used to drive the ejector rod to expand or contract, so that the arc-shaped rod can clamp the parts of the arc structure.

2. The welding robot uses the clamping device to drive the first gear to rotate through the motor, and uses the second gear to drive the shaft to rotate, and the turntable and the clamped parts rotate together, so that the welding robot can weld different positions of the parts; Under the hinged cooperation of the support and the vertical plate, the vertical plate can be rotated, thereby adjusting the angle of the parts, and the locking rod is pushed by the compression spring, so that the locking rod is stuck on the teeth, and the teeth in different directions on the upper and lower sides are used. The teeth limit the slider and the vertical strut from moving neither to the left nor to the right, thereby locking the angle of the vertical plate; when adjustment is required, just press one end of the locking rod to make the locking rod separate from the teeth. , it is convenient for the welding robot to weld the parts from different angles to meet the needs of different angles.

3. The clamping device for the welding robot moves the first sliding sleeve up and down through the hydraulic cylinder, and translates the sliding rod, so that the pressure plate is pressed on the upper part of the part to enhance the stability of the part.

Description of drawings

FIG. 1 is a schematic structural diagram of Embodiment 1 of the present invention.

FIG. 2 is a schematic top-view structural diagram of an arc-shaped rod, a top rod and a second connecting rod in Embodiment 1 of the present invention.

3 is a schematic structural diagram of a guide rod, a toothed plate and a slider in Embodiment 1 of the present invention.

FIG. 4 is an enlarged schematic structural diagram of part A in Embodiment 1 of the present invention.

5 is a schematic structural diagram of a support block and a tooth plate in Embodiment 1 of the present invention.

FIG. 6 is a schematic structural diagram of Embodiment 2 of the present invention.

In the figure: 1-base plate, 2-first support, 3-pull ring, 4-bracket, 5-motor, 6-first gear, 7-second gear, 8-vertical plate, 9-rotating shaft, 10 - Turntable, 11-fixed rod, 12-second support, 13-plate, 14-pressing plate, 15-third support, 16-slide rod, 17-first sliding sleeve, 18-bolt, 19-hydraulic cylinder , 20-moving rod, 21-cross rod, 22-vertical rod, 23-telescopic rod, 24-slot, 25-horizontal plate, 26-curved rod, 27-top rod, 28-support block, 29-guide Rod, 30-fourth support, 31-first connecting rod, 32-second sliding sleeve, 33-tie rod, 34-tooth plate, 35-fifth support, 36-second connecting rod, 37-sixth Support, 38-seventh support, 39-slider, 40-locking rod, 41-eighth support, 42-first horizontal strut, 43-vertical strut, 44-second horizontal strut, 45 - Compression spring.

Detailed ways

The technical solution of the present patent will be described in further detail below in conjunction with specific embodiments.

Example 1

Referring to FIGS. 1-5, in an embodiment of the present invention, a clamping device for a welding robot includes a bottom plate 1, a turntable 10 is arranged on the upper side of the bottom plate 1, and a horizontal plate 25 is fixed on the turntable 10; the horizontal plate 25 The upper side is provided with a fixed rod 11 and a moving rod 20, the fixed rod 11 is fixed on the horizontal plate 25, and the horizontal plate 25 is provided with an adjustment component for adjusting the position of the moving rod 20, the fixed rod 11 and the moving rod 20 are hinged with the second support 12, on which the flat plate 13 is mounted;

Two symmetrically arranged sixth supports 37 are installed on the turntable 10 , the sixth support 37 is hinged with a top rod 27 , and the end of the top rod 27 away from the sixth support 37 is hinged with a fifth support 35 . An arc-shaped rod 26 is installed on the five supports 35, and a pull-out assembly for driving the top rod 27 to rotate is provided on the turntable 10; when in use, the position of the moving rod 20 can be adjusted by the adjustment assembly, thereby adjusting the distance between the two flat plates 13 , in order to clamp the parts of the square plane structure; at the same time, under the hinged cooperation of the second support 12, the flat plate 13 can be rotated, and the flat plate 13 can be closely attached to the inclined surface of the part, which is convenient for clamping the part with the inclined surface; The cooperation of the top rod 27 , the fifth support 35 and the sixth support 37 can drive the top rod 27 to expand or contract by using the pull-out assembly, so that the arc-shaped rod 26 can clamp the parts of the arc structure.

Specifically, the adjustment assembly includes a transverse rod 21 and a telescopic rod 23;

The horizontal plate 25 is provided with a slot 24 for sliding cooperation with the telescopic rod 23, the vertical rod 22 is fixed on the telescopic rod 23, the horizontal rod 21 is fixed on the vertical rod 22, the moving rod 20 is installed on the horizontal rod 21, and the horizontal The plate 25 is screwed with bolts 18; by moving the telescopic rod 23 in the slot 24, the transverse rod 21 and the moving rod 20 move along with it, adjust the position of the moving rod 20, tighten the bolt 18, and press the telescopic rod 23, the The position of the travel lever 20 is locked.

Specifically, the drawing assembly includes a pull rod 33, a second connecting rod 36 and a second sliding sleeve 32;

The second sliding sleeve 32 is installed on the turntable 10, the pull rod 33 is slidably arranged on the turntable 10 and the second sliding sleeve 32, the second sliding sleeve 32 is also threadedly connected with the bolt 18, and the pulling rod 33 and the ejector rod 27 are both provided with There is a seventh support 38, and the second connecting rod 36 is hinged on the seventh support 38; by moving the pull rod 33, the second connecting rod 36 is used to drive the top rod 27 to expand or contract.

Further, the bottom plate 1 is provided with a first support 2, a vertical plate 8 is hinged on the first support 2, the bearing on the vertical plate 8 is connected with a rotating shaft 9, the rotating plate 10 is installed on the rotating shaft 9, and the vertical plate 8 is mounted on the rotating shaft 9. There is a drive assembly for driving the rotating shaft 9 to rotate, and a locking assembly for locking the angle of the vertical plate 8 is provided on the bottom plate 1; the rotating shaft 9 can be driven to rotate through the drive assembly, and the turntable 10 and the clamped parts rotate together with it for welding. The robot welds different positions of the parts; under the hinged cooperation of the first support 2 and the vertical plate 8, the vertical plate 8 can be rotated, thereby adjusting the angle of the parts, which is convenient for the welding robot to weld the parts from different angles, Meet the needs of different angles.

Specifically, the drive assembly includes a motor 5, a first gear 6 and a second gear 7;

The vertical plate 8 is provided with a bracket 4, the motor 5 is mounted on the bracket 4, the output shaft of the motor 5 is connected with the first gear 6, the second gear 7 is arranged on the rotating shaft 9, and the first gear 6 is connected with the second gear 6. The gear 7 is meshed; the motor 5 drives the first gear 6 to rotate, and the second gear 7 drives the rotation shaft 9 to rotate.

Specifically, the locking assembly includes a first connecting rod 31, a guide rod 29 and a toothed plate 34;

The bottom plate 1 is provided with a support block 28, a guide rod 29 and a toothed plate 34 are fixed on the support block 28, a slider 39 is slidably arranged on the guide rod 29, and a fourth support is provided on the slider 39 and the vertical plate 8. The seat 30, the first link 31 is hinged on the fourth support 30, the bottom of the slider 39 is fixed with a vertical strut 43, and the vertical strut 43 is provided with a first horizontal strut 42 and a second horizontal strut 44, The first cross brace 42 and the second cross brace 44 are both provided with an eighth support 41, the eighth support 41 is hinged with a locking rod 40, the locking rod 40 is connected with a compression spring 45, and the toothed plate 34 The teeth on the upper and lower sides are in opposite directions; the locking rod 40 is driven by the compression spring 45, so that the locking rod 40 is stuck on the teeth, and the sliding block 39 and the vertical strut 43 are limited by the teeth in different directions on the upper and lower sides. It will neither move to the left nor move to the right, thereby locking the angle of the vertical plate 8; when adjustment is required, just press one end of the locking lever 40 to make the locking lever 40 disengage from the teeth.

The working principle of the embodiment of the present invention is: when in use, by moving the telescopic rod 23 in the slot 24, the transverse rod 21 and the moving rod 20 move with it, adjust the position of the moving rod 20, tighten the bolt 18, and press the telescopic rod 23, the position of the moving rod 20 can be locked, and then the distance between the two flat plates 13 can be adjusted, so as to clamp the parts of the square plane structure; It can be closely attached to the inclined surface of the part, which is convenient for clamping the part with the inclined surface; then through the cooperation of the ejector rod 27, the fifth support 35 and the sixth support 37, the pull rod 33 is moved, and the second connecting rod 36 is used to drive the ejector rod 27 expands or contracts, so that the arc-shaped rod 26 can clamp the parts of the arc structure. The first gear 6 is driven to rotate by the motor 5, the rotating shaft 9 is driven to rotate by the second gear 7, and the turntable 10 and the clamped parts are rotated together, so that the welding robot can weld different positions of the parts; Under the hinged cooperation of the vertical plate 8, the vertical plate 8 can be rotated, thereby adjusting the angle of the parts, and the locking rod 40 is driven by the compression spring 45, so that the locking rod 40 is stuck on the teeth, using different directions on the upper and lower sides. The teeth limit the sliding block 39 and the vertical strut 43 neither to the left nor to the right, thereby locking the angle of the vertical plate 8; when adjustment is required, just press one end of the locking rod 40 to lock the The rod 40 can be separated from the teeth, which is convenient for the welding robot to weld the parts from different angles to meet the requirements of different angles.

Example 2

Referring to FIG. 6 , in an embodiment of the present invention, a clamping device for a welding robot is different from Embodiment 1 in that a hydraulic cylinder 19 is provided on the cross bar 21 , and a telescopic end of the hydraulic cylinder 19 is provided with a first A sliding sleeve 17, a sliding rod 16 is slidably arranged on the first sliding sleeve 17, a third support 15 is hinged on the sliding rod 16, and the bottom of the third support 15 is provided with a pressure plate 14; The sliding sleeve 17 is moved, and the sliding rod 16 is translated, so that the pressing plate 14 presses the upper part of the part to enhance the stability of the part.

The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the above-mentioned embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various aspects can also be made without departing from the purpose of the present invention. kind of change.

Claims (7)

1. The utility model provides a clamping device for welding robot, includes bottom plate (1), and the upside of bottom plate (1) is equipped with carousel (10), is fixed with diaphragm (25), its characterized in that on carousel (10):

a fixed rod (11) and a movable rod (20) are arranged on the upper side of the transverse plate (25), the fixed rod (11) is fixed on the transverse plate (25), an adjusting component for adjusting the position of the movable rod (20) is arranged on the transverse plate (25), a second support (12) is hinged to the fixed rod (11) and the movable rod (20), and a flat plate (13) is mounted on the second support (12);

install two sixth support (37) that the symmetry set up on carousel (10), it has ejector pin (27) to articulate on sixth support (37), and the one end that sixth support (37) were kept away from in ejector pin (27) articulates has fifth support (35), installs arc pole (26) on fifth support (35), is equipped with on carousel (10) to be used for driving the rotatory pull subassembly of ejector pin (27).

2. The clamping device for the welding robot according to claim 1, wherein:

the adjusting component comprises a cross rod (21) and a telescopic rod (23);

the telescopic rod is characterized in that a slot (24) in sliding fit with the telescopic rod (23) is formed in the transverse plate (25), a vertical rod (22) is fixed on the telescopic rod (23), the transverse rod (21) is fixed on the vertical rod (22), the moving rod (20) is installed on the transverse rod (21), and a bolt (18) is connected to the transverse plate (25) through threads.

3. The clamping device for the welding robot according to claim 1, wherein:

the drawing assembly comprises a pull rod (33), a second connecting rod (36) and a second sliding sleeve (32);

the second sliding sleeve (32) is installed on the rotary table (10), the pull rod (33) is arranged on the rotary table (10) and the second sliding sleeve (32) in a sliding mode, the second sliding sleeve (32) is also connected with the bolt (18) in a threaded mode, seventh supports (38) are arranged on the pull rod (33) and the ejector rod (27), and the second connecting rod (36) is hinged to the seventh supports (38).

4. The clamping device for the welding robot according to any one of claims 1 to 3, wherein:

be equipped with first support (2) on bottom plate (1), articulated on first support (2) have riser (8), and bearing connection has pivot (9) on riser (8), and install on pivot (9) carousel (10), is equipped with on riser (8) to be used for driving pivot (9) pivoted drive assembly, is equipped with the locking subassembly that is used for locking riser (8) angle on bottom plate (1).

5. The clamping device for the welding robot according to claim 4, wherein:

the driving assembly comprises a motor (5), a first gear (6) and a second gear (7);

the vertical plate (8) is provided with a bracket (4), the motor (5) is installed on the bracket (4), an output shaft of the motor (5) is connected with the first gear (6), the second gear (7) is arranged on the rotating shaft (9), and the first gear (6) is meshed with the second gear (7).

6. The clamping device for the welding robot according to claim 4, wherein:

the locking assembly comprises a first connecting rod (31), a guide rod (29) and a toothed plate (34);

the novel gear rack is characterized in that a supporting block (28) is arranged on the bottom plate (1), a guide rod (29) and a toothed plate (34) are fixed on the supporting block (28), a sliding block (39) is arranged on the guide rod (29) in a sliding mode, fourth supports (30) are arranged on the sliding block (39) and the vertical plate (8), a first connecting rod (31) is hinged to the fourth supports (30), a vertical support rod (43) is fixed to the bottom of the sliding block (39), a first transverse support rod (42) and a second transverse support rod (44) are arranged on the vertical support rod (43), eighth supports (41) are arranged on the first transverse support rod (42) and the second transverse support rod (44), a locking rod (40) is hinged to the eighth supports (41), a pressure spring (45) is connected to the locking rod (40), and the directions of teeth on the upper side face and the lower side face of the toothed.

7. The clamping device for the welding robot according to claim 2, wherein:

the hydraulic cylinder (19) is arranged on the cross rod (21), the first sliding sleeve (17) is arranged at the telescopic end of the hydraulic cylinder (19), a sliding rod (16) is arranged on the first sliding sleeve (17) in a sliding mode, a third support (15) is hinged to the sliding rod (16), and a pressing plate (14) is arranged at the bottom of the third support (15).

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