Clamping tool facilitating butt joint and used for robot welding

Abstract

The clamping tool comprises a bottom plate, a linear motor is installed in the middle of one side of the interior of the bottom plate, a moving seat is installed at the top end of the linear motor, a servo motor is installed in the middle of one side of the moving seat, and a servo motor is installed in the middle of the other side of the moving seat. A servo motor is installed on the base, a winding shaft is installed at the output shaft end of the servo motor, a first connecting base is fixedly connected to one side of the winding shaft, a first clamping mechanism is arranged in the first connecting base, and clamping pieces are arranged at the two ends of one side of the first clamping mechanism. One side of the first connecting seat and one side of the second connecting seat are respectively provided with the inserting block and the through groove, when two groups of welding parts are attached, the inserting block on the first connecting seat can be inserted into the through groove in the second connecting seat, the clamping block in the through groove can be clamped into the clamping groove in the inserting block at the moment, and stable butt joint work of the two groups of welding parts is completed. And meanwhile, the multiple sets of clamping grooves are formed in the inserting block so that stable butt joint work of welding pieces of different specifications can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of robot welding technology, specifically to a clamping fixture for robot welding that facilitates docking. Background Technology

[0002] A robotic welding fixture is a device used to fix and position workpieces for welding, ensuring their stability and precision during the welding process. It typically consists of components such as clamps, locating pins, and support frames, and can accommodate workpieces of different shapes and sizes. By working in conjunction with a robotic welding system, the fixture enables automated welding and is widely used in the automotive, aerospace, and other fields.

[0003] A robotic welding pipe clamping fixture for easy docking, disclosed in Chinese Patent Publication No. CN 222221645 U, involves placing two pipes on a first and second fixing ring respectively. A controller then activates a first servo motor, which rotates a first threaded rod. This rotation causes a threaded push rod to move downwards, which in turn moves a first mounting plate downwards. This downward movement of the first mounting plate then moves an upper first fixing frame downwards. Simultaneously, the push rod pushes a limit rod downwards, which in turn moves a second mounting plate downwards. The second mounting plate then moves an upper second fixing ring downwards, thus simultaneously fixing the two pipes. However, this robotic welding clamping fixture has low overall stability. During the welding process, external forces can cause welding misalignment, affecting the overall welding quality of the clamping fixture. Utility Model Content

[0004] The purpose of this invention is to provide a clamping fixture for robot welding that facilitates docking, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a clamping fixture for robot welding that facilitates docking, comprising a base plate, a linear motor mounted at the middle position of one side of the base plate, a movable seat mounted at the top of the linear motor, a servo motor mounted at the middle position of one side of the movable seat, a take-up shaft mounted at the output shaft end of the servo motor, a first connecting seat fixedly connected to one side of the take-up shaft, a first clamping mechanism disposed inside the first connecting seat, clamping members disposed at both ends of one side of the first clamping mechanism, a rotating mechanism disposed on one side of the top of the base plate, a cleaning brush disposed on one side of the rotating mechanism, a fixed seat fixedly connected at the middle position of one side of the top of the base plate, a second connecting seat rotatably connected to one side of the fixed seat, a limit mechanism disposed at the bottom end of the interior of the second connecting seat, and a second clamping mechanism disposed on one side of the second connecting seat.

[0006] Preferably, the first clamping mechanism includes a bidirectional shaft motor installed in the middle position inside the first connecting seat, and threaded rods are installed on the output shaft ends on both sides of the bidirectional shaft motor. The threaded rods are externally threaded with a threaded block that is fixedly connected to the clamping member on one side.

[0007] Preferably, the rotating mechanism includes limiting plates fixedly connected to both sides of the top of the base plate, and rotating rods are rotatably connected inside the two sets of limiting plates, with movable shafts sleeved on the outside of the rotating rods.

[0008] Preferably, a first pull rope is fixedly connected to one side of the movable shaft and fixedly connected to the winding shaft on the other side, a slider that slides inside the rotating rod is fixedly connected to one side of the movable shaft, and a fixed seat that is fixedly connected to the torsion spring on one side of the rotating rod is fixedly connected to one side of the rotating rod.

[0009] Preferably, the limiting mechanism includes a plug block fixedly connected to the bottom end of one side of the first connecting seat, and slots are evenly arranged at equal intervals inside one side of the plug block.

[0010] Preferably, the interior of one side of the second connecting seat is provided with a through groove that engages with the insert block. A locking block is movably connected to one side of the through groove. A movable block is fixedly connected to one side of the locking block. A spring is fixedly connected to one side of the movable block. A second pull rope is fixedly connected to the middle position of one side of the movable block. A rotatable handle with one side fixedly connected to the second pull rope is rotatably connected to the bottom end of the outer side of the second connecting seat.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This easy-to-connect robotic welding clamping fixture has an insert block and a through slot on one side of the first connecting seat and the second connecting seat, respectively. When the two sets of welding parts are brought together, the insert block on the first connecting seat can be inserted into the through slot on the second connecting seat. At this time, the locking block in the through slot can be locked into the locking slot on the insert block, completing the stable docking of the two sets of welding parts. At the same time, the insert block is provided with multiple locking slots to adapt to the stable docking of welding parts of different specifications, improving the stability of the robotic welding clamping fixture while ensuring the overall welding quality.

[0013] 2. This easy-to-connect robotic welding clamping fixture has a take-up shaft on one side of the servo motor. When the servo motor drives the welding part on the first connecting seat to adjust the angle through the take-up shaft, the take-up shaft can simultaneously pull the first pull rope to take up the weld. At this time, the first pull rope can drive the rotating rod to rotate through the movable shaft, and the rotating rod drives the cleaning brush to perform auxiliary cleaning work on the welded part, thereby effectively cleaning the welding slag and improving the overall functionality of the clamping fixture. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a front view structural diagram of the present utility model;

[0016] Figure 3 This is a top view of the structure of this utility model;

[0017] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 1. Base plate; 101. Linear motor; 102. Limiting plate; 103. Fixed seat; 2. Moving seat; 201. Servo motor; 202. Rewinding shaft; 203. First pull rope; 3. First connecting seat; 301. Insert block; 302. Slot; 4. First clamping mechanism; 401. Bidirectional shaft motor; 402. Threaded rod; 403. Threaded block; 5. Clamping component; 6. Rotating mechanism; 601. Rotating rod; 602. Movable shaft; 603. Slider; 604. Torsion spring; 7. Cleaning brush; 8. Second connecting seat; 801. Through groove; 802. Slot; 803. Movable block; 804. Spring; 805. Second pull rope; 806. Turning handle; 9. Limiting mechanism; 10. Second clamping mechanism. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides two technical solutions:

[0021] Example 1: A clamping fixture for robot welding that facilitates docking includes a base plate 1. A linear motor 101 is installed in the middle of one side of the base plate 1. A movable seat 2 is installed on the top of the linear motor 101. When the linear motor 101 is started, it can push the movable seat 2 to move on the top of the base plate 1, so that the movable seat 2 can adjust the distance between itself and the second connecting seat 8, which facilitates the docking of two sets of welding parts.

[0022] A servo motor 201 is installed in the middle of one side of the movable seat 2. A take-up shaft 202 is installed at the output shaft end of the servo motor 201. A first connecting seat 3 is fixedly connected to one side of the take-up shaft 202. When the servo motor 201 is started, it can drive the first connecting seat 3 to rotate through the take-up shaft 202. At this time, the first connecting seat 3 can drive the welding part to adjust the welding angle.

[0023] The first connecting seat 3 is equipped with a first clamping mechanism 4 inside. Clamping parts 5 are provided at both ends of one side of the first clamping mechanism 4. A rotating mechanism 6 is provided on one side of the top of the base plate 1. A cleaning brush 7 is provided on one side of the rotating mechanism 6. A fixed seat 103 is fixedly connected to the middle position of one side of the top of the base plate 1. A second connecting seat 8 is rotatably connected to one side of the fixed seat 103. A limiting mechanism 9 is provided at the bottom of the interior of the second connecting seat 8. A second clamping mechanism 10 is provided on one side of the second connecting seat 8. The specifications of the second clamping mechanism 10 are the same as those of the first clamping mechanism 4. The clamping and limiting work of the two sets of welded parts can be performed by the second clamping mechanism 10 and the first clamping mechanism 4 respectively.

[0024] The first clamping mechanism 4 includes a bidirectional shaft motor 401 installed in the middle of the first connecting seat 3. Threaded rods 402 are installed on the output shaft ends on both sides of the bidirectional shaft motor 401. Threaded blocks 403 are threadedly connected to the external threads of the threaded rods 402, one side of which is fixedly connected to the clamping member 5. When the bidirectional shaft motor 401 is started, it can drive the threaded rods 402 on both sides to rotate. At this time, the threaded blocks 403 on the two sets of threaded rods 402 can move relative to each other on the threaded rods 402, and drive the clamping member 5 to perform the clamping work of the welded parts.

[0025] The limiting mechanism 9 includes a plug 301 fixedly connected to the bottom of one side of the first connecting seat 3. The plug 301 has slots 302 evenly arranged at equal intervals inside one side. When the plug 301 on the first connecting seat 3 is inserted into the through slot 801 on the second connecting seat 8, the slot 802 in the through slot 801 can be engaged in the slot 302 on the plug 301, thus completing the stable docking of the first connecting seat 3 and the second connecting seat 8.

[0026] The second connecting seat 8 has a through groove 801 inside one side that engages with the insert block 301. A locking block 802 is movably connected to one side of the through groove 801. A movable block 803 is fixedly connected to one side of the locking block 802. A spring 804 is fixedly connected to one side of the movable block 803. A second pull rope 805 is fixedly connected to the middle position of one side of the movable block 803. A handle 806 is rotatably connected to the bottom end of the outer side of the second connecting seat 8. When the locking block 802 is subjected to a force from left to right, the spring 804 can be squeezed by the movable block 803. At this time, the locking block 802 can be retracted into the through groove 801. When the locking block 802 is released from the force, the locking block 802 can be pushed back to its original position by the reaction force of the spring 804 being squeezed by the movable block 803 due to the force. At the same time, the rotation of the handle 806 can pull the movable block 803 and the locking block 802 to move by the second pull rope 805.

[0027] Example 2 differs from Example 1 mainly in that:

[0028] A robotic welding clamping fixture for easy docking includes a rotating mechanism 6 comprising limiting plates 102 fixedly connected to both sides of the top of a base plate 1. A rotating rod 601 is rotatably connected inside the two sets of limiting plates 102. A movable shaft 602 is sleeved on the outside of the rotating rod 601. A first pull rope 203, fixedly connected to a winding shaft 202 on one side of the movable shaft 602, is fixedly connected to a slider 603 that slides within the rotating rod 601. A fixed seat 103, fixedly connected to a torsion spring 604 on one side of the rotating rod 601, is also fixedly connected to the first pull rope 203. Multiple strands are wound on the movable shaft 602. The first pull rope 203 is wound up by the winding shaft 202, which can drive the movable shaft 602 and the rotating rod 601 to rotate. At the same time, the movable shaft 602 is provided with a slider 603 to facilitate the movable shaft 602 to drive the rotating rod 601 to rotate. The movable shaft 602 can slide on the rotating rod 601 with the moving seat 2, and can be twisted when the rotating rod 601 rotates by the torsion spring 604. It can also be quickly reset when the rotating rod 601 is not under force. All contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0029] In this embodiment of the application, the two sets of workpieces to be welded are placed on one side of the first connecting seat 3 and the second connecting seat 8, respectively. At this time, the first clamping mechanism 4 and the second clamping mechanism 10 on the first connecting seat 3 and the second connecting seat 8 are activated, and the welded parts can be clamped on one side of the first connecting seat 3 and the second connecting seat 8, respectively. At this time, the linear motor 101 is activated and can push the moving seat 2 to move. The moving seat 2 can drive the welded parts on the first connecting seat 3 side to fit together with the welded parts on the second connecting seat 8 side. At the same time, the insert block 301 on the first connecting seat 3 side can be inserted into the through groove 801 in the second connecting seat 8. At this time, the locking block 802 in the through groove 801 can be locked into the locking groove 302 on the insert block 301, thus completing the stable docking of the two sets of welded parts.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A robot welding clamping tool facilitating docking, comprising a base plate (1), characterized in that: The middle position of the inner side of the bottom plate (1) is provided with a linear motor (101), the top end of the linear motor (101) is provided with a moving seat (2), the middle position of one side of the moving seat (2) is provided with a servo motor (201), the output shaft end of the servo motor (201) is provided with a winding shaft (202), one side of the winding shaft (202) is fixedly connected with a first connecting seat (3), the inside of the first connecting seat (3) is provided with a first clamping mechanism (4), both ends of one side of the first clamping mechanism (4) are provided with clamping pieces (5), one side of the top end of the bottom plate (1) is provided with a rotating mechanism (6), one side of the rotating mechanism (6) is provided with a cleaning brush (7), the middle position of one side of the top end of the bottom plate (1) is fixedly connected with a fixed seat (103), one side of the fixed seat (103) is rotatably connected with a second connecting seat (8), the bottom end inside the second connecting seat (8) is provided with a limiting mechanism (9), one side of the second connecting seat (8) is provided with a second clamping mechanism (10).

2. The robot welding fixture according to claim 1, wherein: The first clamping mechanism (4) comprises a bidirectional shaft motor (401) mounted in the middle position inside the first connecting seat (3), threaded rods (402) are mounted at the output shaft ends on both sides of the bidirectional shaft motor (401), and the outside of the threaded rods (402) is threadedly connected with threaded blocks (403) fixedly connected with the clamping pieces (5) on one side.

3. The robot welding fixture of claim 1, wherein: The rotating mechanism (6) comprises limiting plates (102) fixedly connected on both sides of the top end of the bottom plate (1), and rotating rods (601) are rotatably connected inside two groups of limiting plates (102).

4. The robot welding fixture of claim 3, wherein: One side of the outside of the movable shaft (602) is fixedly connected with a first pull rope (203) fixedly connected with the winding shaft (202) on one side, one side of the inside of the movable shaft (602) is fixedly connected with a sliding block (603) sliding in the rotating rod (601), and one side of the rotating rod (601) is fixedly connected with a fixed seat (103) fixedly connected with a torsional spring (604) on one side.

5. The robot welding fixture of claim 1, wherein: The limiting mechanism (9) comprises an insertion block (301) fixedly connected at the bottom end on one side of the first connecting seat (3), and clamping grooves (302) are uniformly and equidistantly arranged in the inside of one side of the insertion block (301).

6. The robot welding fixture of claim 5, wherein: One side of the inside of the second connecting seat (8) is provided with a through groove (801) inserted with the insertion block (301), one side of the inside of the through groove (801) is movably connected with a clamping block (802), one side of the clamping block (802) is fixedly connected with a movable block (803), one side of the movable block (803) is fixedly connected with a spring (804), the middle position of one side of the movable block (803) is fixedly connected with a second pull rope (805), and the bottom end of one side of the outside of the second connecting seat (8) is rotatably connected with a steering handle (806) fixedly connected with the second pull rope (805) on one side.

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