Auxiliary device facilitating manual switching of positioning clamps

Abstract

The invention relates to the field of welding clamps, and provides an auxiliary device facilitating manual switching of a positioning clamp, a movable base is pushed, the movable base slides on the ground through movable wheels, the movable base slides to a base, and sliding rail wheels at the bottom of the movable base slide to a sliding mechanism; the two protruding discs of the sliding rail wheel are located on the edge of the sliding mechanism to achieve limiting sliding, so that the movable base can be accurately positioned and slide to the position above the base, and then the positioning air cylinder drives the positioning column to move upwards into the positioning hole of the movable base to achieve positioning. And finally, the clamping arms of the supporting arms of the movable base are clamped through the pressing clamping mechanism to achieve stable clamping, and therefore accurate positioning switching is achieved.

Description

Technical Field

[0001] The invention relates to the field of welding fixtures, and in particular to an auxiliary device for facilitating manual switching of positioning fixtures. Background Art

[0002] Welding fixtures are tools used to secure, clamp, and position welding workpieces or fixtures. Their use improves production efficiency and welding quality, while reducing worker workload and safety risks. To meet the demands of flexible production for diverse products, different positioning fixtures must be interchanged based on the product type. Prior art patent CN114346570A discloses a rapid switching device for welding fixture positioning mechanisms. This modular design allows for simultaneous switching of the positioning mechanisms for different products within the same fixture. While this patent addresses the switching of positioning mechanisms within the same fixture, it only accommodates fixtures with minimal product variation, requiring the entire fixture to be switched. Currently, most positioning fixtures on the market are mounted on top of a floor-mounted switching mechanism using a positioning mechanism located at the bottom of the fixture. Because the positioning mechanism is difficult to observe from the bottom, manual switching of the positioning fixture can be difficult, creating inconvenience for workers. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to propose an auxiliary device that facilitates manual switching of the positioning fixture, so as to solve the problem that the positioning fixture is installed on the top of the ground switching mechanism through the positioning device at the bottom of the fixture during the replacement process. Since the positioning device is not easy to observe at the bottom, the positioning device of the ground switching mechanism cannot be aligned when the positioning fixture is manually switched, which brings inconvenience to employees in switching the positioning fixture.

[0004] Based on the above-mentioned purpose, the present invention provides an auxiliary device that is convenient for manual switching of positioning fixtures, including a base, a sliding mechanism is provided on the top of the base, a movable base is slid on the top of the sliding mechanism, and four slide wheels arranged in a rectangular shape are provided at the bottom of the movable base, the slide wheels cooperate with the sliding mechanism, and four movable wheels arranged in a rectangular shape are provided at the bottom of the movable base, and the movable wheels are located on the ground outside the base and move; a welding fixture tool is provided on the top of the movable base; raised disks are provided on both sides of the slide wheels, and the two raised disks are located at the edge of the sliding mechanism to realize limited sliding; six downward clamping mechanisms are provided on the base, a support arm is provided at the bottom of the movable base, and clamping arms that cooperate with the downward clamping mechanism are provided on both sides of the bottom end of the support arm; a positioning cylinder is provided on the base, a positioning column is provided at the output end of the top of the positioning cylinder, and a positioning hole that cooperates with the positioning column is provided at the bottom of the movable base.

[0005] Preferably, the base includes a BASE welding part, and the downward clamping mechanism includes a "Z"-shaped frame arranged on the top of the BASE welding part, a clamping cylinder is arranged on the top of the "Z"-shaped frame, and the bottom output end of the clamping cylinder passes through the top of the "Z"-shaped frame and is connected to a clamping plate, and the clamping plate is located above the clamping arm.

[0006] Preferably, arc-shaped plates are distributed and fixed around the BASE weldment, and fixing frames corresponding to the arc-shaped plates are distributed on the ground where the base is located. The fixing frames are fixed to the ground by nut and bolt assemblies, and the corresponding arc-shaped plates and fixing frames are fixed together by inserting threads into threaded columns.

[0007] Preferably, the sliding mechanism includes two slide rails arranged at intervals on the top of the BASE weldment. The slide rails are fixedly connected to the BASE weldment by a bolt and nut assembly. The slide rails are square, and the raised disks on both sides of the slide rail wheels are located at the edges of the slide rails, and the slide rail wheels are located at the top of the slide rails; an inwardly bent guide strip is provided on the inner side of the front end of the slide rail, and a loading ramp is provided at the front end of the slide rail.

[0008] Preferably, the moving wheel slides toward the base, and the slide wheel contacts the lowest end of the loading ramp. When the slide wheel slides onto the slide rail through the loading ramp, the moving wheel is in a suspended state.

[0009] Preferably, a mounting frame 1 is provided above the slide wheel, the mounting frame 1 is fixed to the bottom of the mobile base, and a connecting rod 1 is fixed on both sides of the slide wheel, and the connecting rod 1 is rotatably connected to the side of the mounting frame 1.

[0010] Preferably, a second mounting frame is provided above the moving wheel, the second mounting frame is fixed to the bottom of the moving base, and a second connecting rod is fixed on both sides of the moving wheel, and the second connecting rod is rotatably connected to the side of the second mounting frame.

[0011] Preferably, two outwardly bent guide rails are provided on the ground at the front side of the base, and the two guide strips are located between the two guide rails.

[0012] Preferably, the welding fixture tooling includes a tooling base, and a controller, a material rack, a display screen and a push armrest are arranged on the top of the tooling base.

[0013] The beneficial effects of the present invention are as follows: the present invention pushes the mobile base, and the mobile base slides on the ground through the mobile wheels. The mobile base slides to the base, and the slide wheel at the bottom thereof slides onto the sliding mechanism. The two raised disks of the slide wheel are located on the edge of the sliding mechanism to achieve limited sliding. In this way, the mobile base can accurately position and slide to the top of the base, and then the positioning cylinder drives the positioning column to move up to the positioning hole of the mobile base to achieve positioning. Finally, the downward clamping mechanism is used to clamp the clamping arm of the support arm of the mobile base to achieve stable clamping, thereby achieving accurate positioning switching. The downward clamping mechanism of the present invention is provided with a "Z"-shaped frame. The middle of the six "Z"-shaped frames forms a space for the support arm and the clamping arm to pass through, which can achieve positioning movement. The clamping cylinder then drives the clamping plate to move down to clamp the clamping arm to ensure the stability of the clamp. The base weldment of the present invention is fixedly connected to the ground fixing bracket via a curved plate and threaded columns, allowing the base to be disassembled as needed. A guide rail is also provided on the front side of the base to guide the movement of the mobile wheels, facilitating the movement of one end of the base on the ground. The slide rails of the present invention's sliding mechanism cooperate with the raised discs of the slide wheels to achieve positioning and sliding. Guide strips are provided to position and guide the sliding of the slide wheels. A loading ramp is provided to allow the mobile base to slide onto the rails, leaving the mobile wheels suspended in the air. This prevents the mobile wheels from moving further, thus avoiding interference with positioning switching. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 This is an exploded view of the base of the present invention; Figure 4 An exploded view of the sliding mechanism of the present invention; Figure 5 This is an exploded view of the mobile base of the present invention; Figure 6 Schematic diagram of the clamping arm of the present invention.

[0016] The following are marked in the figure: 1-base, 2-sliding mechanism, 3-mobile base, 4-slide wheel, 5-mobile wheel, 6-welding fixture, 7-raised plate, 8-support arm, 9-clamping arm, 10-positioning cylinder, 11-positioning column, 12-positioning hole, 13-BASE welding part, 14-"Z"-shaped frame, 15-clamping cylinder, 16-arc plate, 17-fixed frame, 18-slide rail, 19-guide bar, 20-loading ramp, 21-mounting frame one, 22-connecting rod one, 23-mounting frame two, 24-connecting rod two, 25-guide rail, 26-tooling base, 27-controller, 28-material rack, 29-display screen, 30-pushing armrest. DETAILED DESCRIPTION

[0017] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to specific embodiments.

[0018] It should be noted that, unless otherwise defined, the technical or scientific terms used in the present invention should have the usual meanings understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0019] like Figures 1 to 6As shown, an auxiliary device for facilitating manual switching of positioning fixtures includes a base 1, a sliding mechanism 2 is provided on the top of the base 1, a movable base 3 slides on the top of the sliding mechanism 2, and four rectangularly arranged slide wheels 4 are provided at the bottom of the movable base 3, and the slide wheels 4 cooperate with the sliding mechanism 2. The bottom of the movable base 3 is located outside the four slide wheels 4 and four rectangularly arranged moving wheels 5 are provided. The moving wheels 5 are located on the ground outside the base 1 and move; a welding fixture tooling 6 is provided on the top of the movable base 3; raised discs 7 are provided on both sides of the slide wheels 4, and the two raised discs 7 are located at the edge of the sliding mechanism 2 to realize limited sliding; six downward clamping mechanisms are provided on the base 1, and a support arm 8 is provided at the bottom of the movable base 3, and clamping arms 9 for clamping with the downward clamping mechanism are provided on both sides of the bottom end of the support arm 8; a positioning cylinder 10 is provided on the base 1, and a positioning column 11 is provided at the top output end of the positioning cylinder 10, and a positioning hole for cooperating with the positioning column 11 is provided at the bottom of the movable base 4. By pushing the mobile base 3, the mobile base 3 slides on the ground through the mobile wheels 5, and the mobile base 3 slides to the base 1. The slide wheel 4 at its bottom slides onto the sliding mechanism 2. The two raised disks 7 of the slide wheel 4 are located at the edge of the sliding mechanism 2 to achieve limited sliding. In this way, the mobile base 3 can be accurately positioned and slid to the top of the base, and then the positioning cylinder 10 drives the positioning column 11 to move up to the positioning hole of the mobile base 3 to achieve positioning. Finally, the clamping mechanism is pressed down to clamp the clamping arm 9 of the support arm 8 of the mobile base 3 to achieve stable clamping, thereby achieving accurate positioning switching.

[0020] The base 1 includes a BASE weldment 13, and the downward clamping mechanism includes a "Z"-shaped frame 14 arranged on the top of the BASE weldment 13. A clamping cylinder 15 is arranged on the top of the "Z"-shaped frame 14. The bottom output end of the clamping cylinder 15 passes through the top of the "Z"-shaped frame 14 and is connected to a clamping plate. The clamping plate is located above the clamping arm 9. The downward clamping mechanism is provided with a "Z"-shaped frame 14. The six "Z"-shaped frames 14 form a space for the support arm 8 and the clamping arm 9 to pass through, which can achieve positioning and movement. The clamping plate is then driven downward by the clamping cylinder 15 to clamp the clamping arm 9 to ensure the stability of the fixture. Arc-shaped plates 16 are distributed and fixed around the BASE weldment 13. Fixed frames 17 corresponding to the arc-shaped plates 16 are distributed on the ground where the base 1 is located. The fixed frames 17 are fixed to the ground by nut and bolt assemblies. The corresponding arc-shaped plates 16 and the fixed frames 17 are fixed together by inserting threads into threaded columns. Two outward-bending guide rails 25 are provided on the ground on the front side of the base 1. The BASE weldment 13 of the base 1 is fixedly connected to the fixing frame 17 on the ground through the arc plate 16 through the threaded column, so that the base 1 can be disassembled according to needs; a guide rail 25 is also provided on the front side of the base 1 to guide the movement of the moving wheel, so as to facilitate the movement of one end of the base on the ground.

[0021] The sliding mechanism 2 includes two rails 18 spaced apart and positioned atop the base weldment 13. The rails 18 are fixedly connected to the base weldment 13 via a bolt and nut assembly. The rails 18 are square in shape, with raised discs 7 on either side of the rail wheels 4 located at the edges of the rails 18, and the rail wheels 4 are positioned at the top of the rails. An inwardly curved guide bar 19 is positioned inside the front end of the rails 18, with the two guide bars 19 positioned between two guide rails 25. A loading ramp 20 is positioned at the front end of the rails 18. As the moving wheel 5 slides toward the base 1, the rail wheels 4 contact the lowest end of the loading ramp 20. When the rail wheels 4 slide onto the rails 18 via the loading ramp 20, the moving wheel 5 is suspended in the air. The slide rail 18 of the sliding mechanism 2 cooperates with the raised disk 7 of the slide wheel 4 to realize positioning sliding. The slide of the slide wheel 4 is positioned and guided by setting the guide bar 19. The loading ramp 20 is set to make the mobile base 3 slide onto the slide rail 18, and the moving wheel 4 is in a suspended state, so that the moving wheel 4 will not move anymore, avoiding interference with positioning switching.

[0022] A mounting bracket 21 is provided above the slide wheel 4, which is fixed to the bottom of the mobile base 3. Connecting rods 22 are fixed to both sides of the slide wheel 4, which are rotatably connected to the side of the mounting bracket 21. A mounting bracket 23 is provided above the mobile wheel 5, which is fixed to the bottom of the mobile base 3. Connecting rods 24 are fixed to both sides of the mobile wheel 5, which are rotatably connected to the side of the mounting bracket 23. In this way, the slide wheel and the mobile wheel are rotatably mounted on the bottom of the mobile base.

[0023] Described welding fixture tool 6 comprises tool base 26, and tool base 26 top is provided with controller 27, material rack 28, display screen 29 and pushing armrest 12. Pushing pushing armrest 12 just can realize the movement of mobile base 3 like this, and is convenient for manual operation.

[0024] Those skilled in the art will understand that the discussion of any of the above embodiments is merely illustrative and is not intended to limit the scope of the present invention to these examples. Within the spirit and principles of the present invention, the technical features of the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and many other variations exist in the various aspects of the present invention described above, which are not provided in detail for the sake of clarity. Any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An auxiliary device for facilitating manual switching of a positioning fixture, comprising a base (1), characterized in that: The base (1) is provided with a sliding mechanism (2) on the top, a movable base (3) slides on the top of the sliding mechanism (2), and the movable base (3) is provided with four rectangularly arranged sliding wheels (4) at the bottom, the sliding wheels (4) cooperate with the sliding mechanism (2), and the bottom of the movable base (3) is provided with four rectangularly arranged moving wheels (5) outside the four sliding wheels (4), and the moving wheels (5) are located on the ground outside the base (1) and move; a welding fixture (6) is provided on the top of the movable base (3); the sliding wheels (4) are provided with a plurality of movable wheels (5) arranged in a rectangular shape, and the movable wheels (5) are provided with a plurality of movable wheels (5) arranged in a rectangular shape. ) are provided with raised disks (7) on both sides, and the two raised disks (7) are located at the edge of the sliding mechanism (2) to realize limited sliding; six downward pressing clamping mechanisms are provided on the base (1), and a support arm (8) is provided at the bottom of the movable base (3), and clamping arms (9) are provided on both sides of the bottom end of the support arm (8) for clamping in cooperation with the downward pressing clamping mechanism; a positioning cylinder (10) is provided on the base (1), and a positioning column (11) is provided at the top output end of the positioning cylinder (10), and a positioning hole matching the positioning column (11) is provided at the bottom of the movable base (4).

2. According to claim 1, an auxiliary device for facilitating manual switching of positioning fixtures, characterized in that: The base (1) includes a BASE welding part (13), and the downward clamping mechanism includes a "Z"-shaped frame (14) arranged on the top of the BASE welding part (13). A clamping cylinder (15) is arranged on the top of the "Z"-shaped frame (14). The bottom output end of the clamping cylinder (15) passes through the top of the "Z"-shaped frame (14) and is connected to a clamping plate. The clamping plate is located above the clamping arm (9).

3. According to claim 2, an auxiliary device for facilitating manual switching of positioning fixtures, characterized in that: The BASE weldment (13) is fixedly provided with arc-shaped plates (16) distributed around it, and a fixing frame (17) corresponding to the arc-shaped plates (16) is distributed on the ground where the base (1) is located, and the fixing frame (17) is fixed on the ground by a nut and bolt assembly, and the corresponding arc-shaped plates (16) and the fixing frame (17) are fixed together by inserting threads into threaded columns.

4. The auxiliary device for facilitating manual switching of positioning fixtures according to claim 2, characterized in that: The sliding mechanism (2) comprises two slide rails (18) arranged at intervals on the top of the BASE weldment (13); the slide rails (18) are fixedly connected to the BASE weldment (13) by means of a bolt and nut assembly; the slide rails (18) are square in shape; the raised disks (7) on both sides of the slide rail wheel (4) are located at the edge of the slide rail (18); the slide rail wheel (4) is located at the top of the slide rail; an inwardly bent guide strip (19) is arranged on the inner side of the front end of the slide rail (18); and a loading ramp (20) is arranged at the front end of the slide rail (18).

5. The auxiliary device for facilitating manual switching of positioning fixtures according to claim 4, characterized in that: The moving wheel (5) slides toward the base (1), and the slide wheel (4) contacts the lowest end of the loading ramp (20). When the slide wheel (4) slides onto the slide rail (18) through the loading ramp (20), the moving wheel (5) is in a suspended state.

6. The auxiliary device for facilitating manual switching of positioning fixtures according to claim 1, characterized in that: A mounting frame (21) is provided above the slide wheel (4), the mounting frame (21) is fixed to the bottom of the mobile base (3), and connecting rods (22) are fixed on both sides of the slide wheel (4), the connecting rods (22) are rotatably connected to the side of the mounting frame (21).

7. The auxiliary device for facilitating manual switching of positioning fixtures according to claim 1, characterized in that: A second mounting frame (23) is provided above the moving wheel (5), the second mounting frame (23) is fixed to the bottom of the moving base (3), and two connecting rods (24) are fixed on both sides of the moving wheel (5), the second connecting rods (24) are rotatably connected to the side of the second mounting frame (23).

8. The auxiliary device for facilitating manual switching of positioning fixtures according to claim 4, characterized in that: Two outwardly bent guide rails (25) are arranged on the ground at the front side of the base (1), and the two guide strips (19) are located between the two guide rails (25).

9. The auxiliary device for facilitating manual switching of positioning fixtures according to claim 1, characterized in that: The welding fixture tool (6) comprises a tool base (26), and a controller (27), a material rack (28), a display screen (29), and a push armrest (12) are arranged on the top of the tool base (26).

Images