Multi-point positioning device for L-shaped sheet metal part

Abstract

The utility model relates to the technical field of sheet metal part machining, and discloses an L-shaped sheet metal part multi-point positioning device which comprises a bottom frame and a mounting table, and the bottom frame is arranged at the bottom end of the mounting table. When the multi-point positioning device for the L-shaped sheet metal part is used, the two sides of an L-shaped sheet metal part workpiece are arranged in the two sets of movable frames, then a rotating handle is rotated to drive the two sets of movable frames to face inwards at the same time so that the two sides of the sheet metal part workpiece can be arranged on the two sets of bottom pads, and finally a movable block moves front and back in an inner groove; after the driving rod is rotated to drive the pressing plates and the connecting pads to move to the top end of the workpiece, then the driving rod is rotated to drive the pressing plates and the connecting pads to move downwards, the connecting pads abut against and are fixed to the workpiece, and multi-point fixing can be conducted on different positions of the L-shaped sheet metal parts with different width sizes through the four sets of movable pressing plates and connecting pads and the two sets of position-adjustable movable frames; the problem that the L-shaped sheet metal part workpiece is inconvenient to adjust and fix at multiple points by using a positioning device is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet metal processing, in particular to an L-shaped sheet metal multi-point positioning device. Background Art

[0002] Sheet metal is a comprehensive cold processing technology for thin metal sheets. The products processed by sheet metal processing are called sheet metal parts. They are not only light weight, high strength, conductive, and low cost, but also have good performance in large-scale mass production. They have been widely used in the fields of electronics, automobiles, and medical equipment. Before drilling and other processing on some L-shaped sheet metal parts, due to the special structure of the L-shaped appearance, in order to facilitate their positioning and fixation, an L-shaped sheet metal multi-point positioning device is required.

[0003] However, when the L-shaped sheet metal multi-point positioning device is used to position, clamp and fix the sheet metal, the fixed-size positioning device has a limited size for positioning the L-shaped sheet metal. When fixing and positioning some sheet metal workpieces of different widths, it is usually necessary to replace some positioning fixtures of different sizes for positioning and fixing. This is insufficient and makes it inconvenient to use the positioning device to perform multi-point adjustment and fixation on the L-shaped sheet metal workpiece.

[0004] Now, a novel L-shaped sheet metal multi-point positioning device is proposed to solve the above-mentioned shortcomings. Utility Model Content

[0005] The purpose of the present invention is to provide an L-shaped sheet metal multi-point positioning device to solve the problem in the above background technology that it is inconvenient to use a positioning device to adjust and fix the L-shaped sheet metal workpiece at multiple points.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an L-shaped sheet metal multi-point positioning device, comprising a base frame and a mounting platform, wherein the base frame is provided at the bottom end of the mounting platform, and the mounting platform is provided with a clamping structure for multi-point adjustment and fixation of the sheet metal workpiece;

[0007] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0008] Furthermore, the movable groove passes through the interior of the top end of the mounting platform, and the top end of the threaded sleeve passes through the interior of the movable groove and is fixedly connected to the bottom end of the movable frame.

[0009] Furthermore, the bottom end of the driving rod passes through the interior of the threaded hole and is movably connected to the top end of the pressing plate.

[0010] Preferably, a top plate is provided at the top of the base frame, and the top plate is fixedly installed between the bottom end of the mounting platform, a one-way screw is vertically penetrated inside the top end of the base frame, a movable ring is movably connected to the top end of the base frame, and a fixed rod is fixed to the outside of the movable ring, sliding sleeves are respectively fixed inside both sides of the top end of the base frame, and guide rods are respectively fixed on both sides of the bottom end of the top plate.

[0011] Furthermore, the one-way lead screw passes through the interior of the movable ring, the bottom end of the guide rod passes through the interior of the sliding sleeve, and three groups of fixed rods are arranged in an annular shape at equal intervals outside the movable ring.

[0012] Preferably, fixed plates are respectively installed and fixed on both sides of the rear end of the mounting platform, and a rotating drum is laterally movably connected between the fixed plates. A covering cloth is wrapped around the outside of the rotating drum, and a fixing strip is fixed to the bottom end of the covering cloth, and a handle is fixed to the bottom end of the fixing strip.

[0013] Furthermore, the right side of the rotating drum passes through the interior of the fixed plate and is fixed with a rotating handle.

[0014] Preferably, a base is fixedly mounted on the bottom end of the chassis.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the L-shaped sheet metal multi-point positioning device not only facilitates the use of the positioning device to adjust and fix the L-shaped sheet metal workpiece at multiple points, facilitates the adjustment of the positioning processing height of the L-shaped sheet metal workpiece, but also facilitates dust protection on the exterior of the positioning device;

[0016] (1) The L-shaped sheet metal workpiece is positioned and fixed by arranging a mounting platform, a bidirectional lead screw, a threaded sleeve, a movable frame, a movable block, a driving rod, an inner groove, a bottom pad, a movable groove, a slide groove, a slider, a turning handle, a threaded hole, a pressure plate and a connecting pad. According to the width size of the L-shaped sheet metal workpiece, the turning handle drives the bidirectional lead screw to rotate. While the bidirectional lead screw rotates, the threaded sleeve connected by the thread can be used to drive the two sets of movable frames to move outward at the same time. After the distance between the two sets of movable frames is widened, the two sides of the L-shaped sheet metal workpiece can be placed between the insides of the two sets of movable frames. The reverse rotating handle drives the two sets of movable frames inward at the same time so that both sides of the sheet metal workpiece are placed on the two sets of bottom pads. Finally, the movable block is moved back and forth inside the inner groove to drive the pressure plate and the connecting pad at the bottom end of the movable block to move to the top of the workpiece. Then, the driving rod is rotated to drive the pressure plate and the connecting pad to move downward, and the connecting pad is pressed against and fixed on the workpiece. By symmetrically arranging four sets of movable pressure plates and connecting pads, the workpiece can be fixed at multiple points in different positions. At the same time, the two sets of movable frames with adjustable positions can facilitate the adjustment, positioning and fixation of L-shaped sheet metal workpieces of different widths.

[0017] (2) By providing a base, a bottom frame, a top plate, a mounting table, a sliding sleeve, a guide rod, a movable ring, a one-way screw and a fixed rod, when the device is used, the movable ring can be rotated by the fixed rod at the top of the bottom frame, and the movable ring can drive the one-way screw connected with the internal thread to extend upward while rotating, and at the same time, the mounting table and the L-shaped sheet metal workpiece fixed at the bottom of the mounting table can be adjusted up and down for processing operation, so that the L-shaped sheet metal workpiece can be processed and used conveniently;

[0018] (3) By providing a mounting platform, a turning handle, a rotating drum, a covering cloth, a handle, a fixing strip and a fixing plate, after the positioning device is used, the fixing strip can be pulled forward by using the handle at the rear end of the mounting platform, thereby pulling the covering cloth out from the outside of the rotating drum, and then covering the top of the mounting platform forward. The covering cloth can then be used to cover the outside of the positioning component on the device to prevent dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0020] Figure 2 This is a schematic diagram of a partial cross-sectional structure of a movable frame of the utility model;

[0021] Figure 3 This is a rear view structural diagram of the covering cloth of the present invention;

[0022] Figure 4 This is a schematic diagram of the top view of the mounting platform of the present invention.

[0023] In the figure: 1. Base; 2. Underframe; 3. Top plate; 4. Mounting table; 5. Bidirectional lead screw; 6. Threaded sleeve; 7. Movable frame; 8. Movable block; 9. Driving rod; 10. Inner groove; 11. Bottom pad; 12. Movable groove; 13. Slide groove; 14. Slider; 15. Turning handle; 16. Slide sleeve; 17. Guide rod; 18. Movable ring; 19. One-way lead screw; 20. Fixed rod; 21. Threaded hole; 22. Pressing plate; 23. Connecting pad; 24. Turning handle; 25. Rotating drum; 26. Covering cloth; 27. Handle; 28. Fixing strip; 29. ​​Fixing plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1: Please refer to Figure 1-4 , an L-shaped sheet metal multi-point positioning device, including a base frame 2 and a mounting platform 4, the bottom end of the mounting platform 4 is provided with the base frame 2, the bottom end of the base frame 2 is fixedly mounted with a base 1, and the mounting platform 4 is provided with a clamping structure for multi-point adjustment and fixation of the sheet metal workpiece;

[0026] The clamping structure includes a bidirectional screw 5, a threaded sleeve 6, a movable frame 7, a movable block 8, a driving rod 9, an inner groove 10, a bottom pad 11, a movable groove 12, a slide 13, a slider 14, a turning handle 15, a threaded hole 21, a pressure plate 22 and a connecting pad 23. The interior of the mounting platform 4 is laterally connected to the bidirectional screw 5, and the two sides of the exterior of the bidirectional screw 5 are respectively threadedly connected to the threaded sleeve 6. The two sides of the top of the mounting platform 4 are respectively provided with movable frames 7. The interior of the two sides of the top of the mounting platform 4 is respectively provided with movable grooves 12. The interior of the top of the movable frame 7 is provided with a An inner groove 10 is provided with movable blocks 8 at both ends of the inner groove 10, a threaded hole 21 is provided inside the movable block 8, and the internal thread of the threaded hole 21 is rotatably connected to the drive rod 9, a pressure plate 22 is provided at both ends of the inner part of the movable frame 7, and a connecting pad 23 is fixed to the bottom end of the pressure plate 22, and a bottom pad 11 is fixed to the bottom end of the inner part of the movable frame 7, the right side of the bidirectional screw 5 passes through the right side of the mounting platform 4 and is fixed with a rotating handle 15, sliders 14 are fixed on both sides of the movable block 8, and slide grooves 13 are provided on both sides of the inner groove 10;

[0027] The movable groove 12 passes through the interior of the top of the mounting platform 4, the top of the threaded sleeve 6 passes through the interior of the movable groove 12 and is fixedly connected to the bottom end of the movable frame 7, and the bottom end of the driving rod 9 passes through the interior of the threaded hole 21 and is movably connected to the top end of the pressing plate 22;

[0028] Specifically, if Figure 1 、 Figure 2 and Figure 4 As shown, when the L-shaped sheet metal workpiece is positioned and fixed, the handle 15 is rotated to drive the bidirectional screw 5 to rotate according to the width of the L-shaped sheet metal workpiece. While the bidirectional screw 5 rotates, the threaded sleeve 6 connected with the thread can be used to drive the two sets of movable frames 7 to move outward at the same time. After the distance between the two sets of movable frames 7 is widened, the two sides of the L-shaped sheet metal workpiece can be placed between the insides of the two sets of movable frames 7. Then, the handle 15 is reversed to drive the two sets of movable frames 7 to move inward at the same time so that the two sides of the sheet metal workpiece are placed on the two sets of bottom pads 11. Finally, by moving the movable block 8 back and forth inside the inner groove 10, the pressure plate 22 and the connecting pad 23 at the bottom of the movable block 8 are driven to move to the top of the workpiece, and then the driving rod 9 is rotated to drive the pressure plate 22 and the connecting pad 23 to move downward, and the connecting pad 23 is pressed against and fixed on the workpiece. By symmetrically arranging four sets of movable pressure plates 22 and connecting pads 23, multi-point fixation of different positions of the workpiece can be performed. At the same time, through the two sets of movable frames 7 with adjustable positions, L-shaped sheet metal workpieces of different widths can be adjusted, positioned and fixed for use.

[0029] Embodiment 2: A top plate 3 is provided at the top of the base frame 2, and the top plate 3 is fixedly installed between the bottom end of the mounting platform 4. A one-way screw 19 is vertically penetrated inside the top end of the base frame 2. A movable ring 18 is movably connected to the top end of the base frame 2, and a fixed rod 20 is fixed to the outside of the movable ring 18. Slide sleeves 16 are respectively fixed to the inside of both sides of the top end of the base frame 2, and guide rods 17 are respectively fixed to both sides of the bottom end of the top plate 3. The one-way screw 19 penetrates the inside of the movable ring 18, and the bottom end of the guide rod 17 penetrates the inside of the sliding sleeve 16. Three groups of fixed rods 20 are arranged in an annular shape at equal intervals on the outside of the movable ring 18.

[0030] Specifically, if Figure 1 As shown, the movable ring 18 can be rotated by using the fixed rod 20 at the top inside the base frame 2. When the movable ring 18 rotates, it can drive the one-way screw 19 connected with the internal thread to extend upward, and at the same time, the processing operation height of the mounting table 4 and the L-shaped sheet metal workpiece fixed at the bottom of the mounting table 4 can be adjusted up and down.

[0031] Example 3: Fixed plates 29 are respectively fixed on both sides of the rear end of the mounting platform 4, and a rotating drum 25 is laterally movably connected between the fixed plates 29. A covering cloth 26 is provided and wrapped around the outside of the rotating drum 25, and a fixing strip 28 is fixed to the bottom end of the covering cloth 26. A handle 27 is fixed to the bottom end of the fixing strip 28. The right side of the rotating drum 25 passes through the interior of the fixed plates 29 and is fixed with a rotating handle 24.

[0032] Specifically, if Figure 1 、 Figure 3 and Figure 4 As shown, after the use of the device is finished, the handle 27 can be used to pull the fixed bar 28 forward at the rear end of the mounting platform 4, driving the covering cloth 26 to be pulled out from the outside of the rotating drum 25, and then it is covered forward on the top of the mounting platform 4. The covering cloth 26 can be used to cover the outside of the positioning component on the device to prevent dust, and the covering cloth 26 can be rewound and retracted by turning the handle 27 to drive the rotating drum 25 to reverse.

[0033] Working principle: When the present invention is in use, it is used to position and fix the L-shaped sheet metal workpiece. According to the width size of the L-shaped sheet metal workpiece, the turning handle 15 is rotated to drive the bidirectional screw 5 to rotate. While the bidirectional screw 5 rotates, the threaded sleeve 6 connected by the thread can be used to drive the two sets of movable frames 7 to move outward at the same time. After the distance between the two sets of movable frames 7 is widened, the two sides of the L-shaped sheet metal workpiece can be placed between the inside of the two sets of movable frames 7 respectively. Then, the turning handle 15 is reversed to drive the two sets of movable frames 7 to move inward at the same time so that the two sides of the sheet metal workpiece are placed on the two sets of bottom pads 11. Finally, the movable block 8 is moved back and forth inside the inner groove 10, and the pressure plate 22 and the connecting pad 23 at the bottom end of the movable block 8 are moved to the top of the workpiece. Then, the driving rod 9 is rotated to drive the pressure plate 22 and the connecting pad 23 to move downward, and the connecting pad 23 is pressed against and fixed on the workpiece. By symmetrically arranging four groups of movable pressure plates 22 and connecting pads 23 and two groups of movable frames 7 with adjustable positions, L-shaped sheet metal workpieces of different widths can be fixed at different positions at multiple points. At the same time, when the device is in use, the movable ring 18 can be rotated at the top of the base frame 2 using the fixed rod 20. When the movable ring 18 rotates, it can drive the one-way screw 19 connected by the internal thread to extend upward, and at the same time, the mounting table 4 and the L-shaped sheet metal workpiece fixed at the bottom of the mounting table 4 can be adjusted up and down in processing operation height. After the positioning device is used, the handle 27 can be used to pull the fixing bar 28 forward at the rear end of the mounting table 4, driving the covering cloth 26 to be pulled out from the outside of the rotating drum 25, and then covered forward on the top of the mounting table 4. The covering cloth 26 can be used to cover the outside of the positioning component on the device to prevent dust.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A multi-point positioning device for an L-shaped sheet metal part, comprising a base frame (2) and a mounting platform (4), characterized in that: A base frame (2) is provided at the bottom end of the mounting platform (4), and a clamping structure for performing multi-point adjustment and fixation on a sheet metal workpiece is provided on the mounting platform (4); The clamping structure comprises a bidirectional screw (5), a threaded sleeve (6), a movable frame (7), a movable block (8), a driving rod (9), an inner groove (10), a bottom pad (11), a movable groove (12), a slide groove (13), a slider (14), a rotating handle (15), a threaded hole (21), a pressing plate (22) and a connecting pad (23); the interior of the mounting platform (4) is laterally movably connected with the bidirectional screw (5), and the two sides of the exterior of the bidirectional screw (5) are respectively threadedly connected with the threaded sleeve (6); the two sides of the top of the mounting platform (4) are respectively provided with movable frames (7); the interior of the two sides of the top of the mounting platform (4) are respectively provided with movable grooves (12); the interior of the top of the movable frame (7) is respectively opened. An inner groove (10) is provided, and movable blocks (8) are respectively provided at both ends of the inner groove (10), a threaded hole (21) is provided inside the movable block (8), and the inner thread of the threaded hole (21) is rotatably connected to a driving rod (9), and pressure plates (22) are respectively provided at both ends of the inner portion of the movable frame (7), and a connecting pad (23) is fixed at the bottom end of the pressure plate (22), and a bottom pad (11) is fixed at the bottom end of the inner portion of the movable frame (7), the right side of the bidirectional lead screw (5) passes through the right side of the mounting platform (4) and is fixed with a rotating handle (15), sliders (14) are respectively fixed on both sides of the movable block (8), and sliding grooves (13) are respectively provided on both sides of the inner groove (10).

2. The L-shaped sheet metal multi-point positioning device according to claim 1, characterized in that: The movable groove (12) passes through the interior of the top end of the mounting platform (4), and the top end of the threaded sleeve (6) passes through the interior of the movable groove (12) and is fixedly connected to the bottom end of the movable frame (7).

3. The multi-point positioning device for an L-shaped sheet metal part according to claim 1, characterized in that: The bottom end of the driving rod (9) passes through the interior of the threaded hole (21) and is movably connected to the top end of the pressing plate (22).

4. The multi-point positioning device for an L-shaped sheet metal part according to claim 1, characterized in that: A top plate (3) is provided at the top of the base frame (2), and the top plate (3) is fixedly mounted between the bottom end of the mounting platform (4); a one-way screw (19) is vertically penetrated inside the top end of the base frame (2); a movable ring (18) is movably connected to the top end of the base frame (2), and a fixed rod (20) is fixed to the outside of the movable ring (18); sliding sleeves (16) are respectively fixed inside both sides of the top end of the base frame (2), and guide rods (17) are respectively fixed on both sides of the bottom end of the top plate (3).

5. The multi-point positioning device for an L-shaped sheet metal part according to claim 4, characterized in that: The one-way screw (19) passes through the interior of the movable ring (18), the bottom end of the guide rod (17) passes through the interior of the sliding sleeve (16), and the fixed rods (20) are arranged in three groups at equal intervals on the outer ring of the movable ring (18).

6. The multi-point positioning device for an L-shaped sheet metal part according to claim 1, characterized in that: Fixed plates (29) are respectively installed and fixed on both sides of the rear end of the mounting platform (4), and a rotating drum (25) is laterally movably connected between the fixed plates (29). A covering cloth (26) is arranged and wrapped around the outside of the rotating drum (25), and a fixing strip (28) is fixed to the bottom end of the covering cloth (26), and a handle (27) is fixed to the bottom end of the fixing strip (28).

7. The multi-point positioning device for an L-shaped sheet metal part according to claim 6, characterized in that: The right side of the rotating drum (25) passes through the interior of the fixed plate (29) and is fixed with a rotating handle (24).

8. The multi-point positioning device for an L-shaped sheet metal part according to claim 1, characterized in that: A base (1) is fixedly mounted on the bottom end of the base frame (2).

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