Plane positioning and clamping tool

Abstract

The utility model relates to a plane positioning and clamping tool, which belongs to the technical field of positioning and clamping and comprises a base, a plurality of positioning plates are fixed at the top end of the base, a plurality of fastening screws are in threaded connection with the top end of the base, clamping plates are fixed on the outer surfaces of the fastening screws, extension components are arranged in the clamping plates, and the extension components are fixed on the base. The extension assembly comprises two extension plates slidably connected with the interior of the clamping plate, two connecting plates are fixed to the top ends of the two extension plates, and the extension assembly further comprises two transverse plates fixed to the top end of the clamping plate. According to the plane positioning and clamping tool, the extension plate can retract into or move out of the interior of the clamping plate through the extension assembly, so that the length of the clamping plate can be adjusted according to the size of a workpiece, the workpieces of different sizes can be conveniently clamped and fixed, and when the workpieces of different sizes are positioned and fixed, the clamping plate does not need to be detached from the base; and clamping plates of different sizes do not need to be compared with the workpieces, and the application range can be widened.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning and clamping, in particular to a plane positioning and clamping tool. Background Art

[0002] The workpiece to be processed needs to be processed in coordination with the CNC machining center machine tool, and the size and matching accuracy requirements are high. Usually, the processing method of the workpiece to be processed is to clamp the workpiece to be processed through a three-jaw self-centering chuck, but this processing method usually requires a lever gauge to find the reference during the processing process, which is time-consuming and labor-intensive. It often occurs that the position and parallelism exceed the design requirements. In addition, the three-jaw self-centering chuck clamping processing method cannot clamp multiple workpieces to be processed at the same time, which is not suitable for mass production and has low processing efficiency.

[0003] A Chinese patent (publication number: CN220240777U) discloses a plane positioning and clamping tool, which improves the size and position accuracy of parts processing, and also improves production efficiency. The positioning and clamping tool has a long service life, and the parts of each part of the positioning and clamping mechanism can be disassembled and replaced separately, reducing downtime and clamping time, making processing more efficient. However, when the above-mentioned document needs to clamp and position workpieces of different sizes, the clamp must be removed from the base by fastening screws, and then replaced with a clamp that matches the size of the workpiece before workpieces of different sizes can be clamped and positioned. When changing the size of the clamp, the staff needs to compare the clamps of different sizes with the workpiece so that the clamp can accurately clamp and fix the workpiece on the base, resulting in a certain degree of cumbersomeness when the above-mentioned document needs to position and fix workpieces of different sizes. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a plane positioning and clamping tool, which has the advantages of being convenient for positioning and fixing workpieces of different sizes, and solves the problem of being inconvenient for positioning and fixing workpieces of different sizes.

[0005] To achieve the above object, the utility model provides the following technical solutions: a plane positioning clamping tool, comprising a base, a plurality of positioning plates are fixed to the top of the base, a plurality of fastening screws are threadedly connected to the top of the base, a clamping plate is fixed to the outer surface of the fastening screw, and an extension component is arranged inside the clamping plate;

[0006] The extension assembly includes two extension plates that are slidably connected to the inside of the splint, two connecting plates are fixed to the top of the two extension plates, the extension assembly also includes two cross plates fixed to the top of the splint, vertical blocks are fixed to the front and rear ends of the connecting plates, support blocks are fixed to the top of the vertical blocks, and left and right groups of springs are arranged on the opposite sides of the vertical blocks. The extension assembly also includes a positioning structure arranged on the top of the two cross plates.

[0007] Furthermore, the clamping plate is in the shape of a rectangle which is hollow inside and missing at both left and right ends, and the two horizontal plates are both in the shape of a rectangle which is hollow inside and missing at the lower end.

[0008] Furthermore, two sliding holes are provided at both left and right ends of the top end of the clamping plate, and the upright block penetrates into the interior of the sliding hole and is slidably connected thereto.

[0009] Furthermore, the support block is T-shaped, and two slide grooves are provided on the top of the inner cavity of the horizontal plate. The support block is located inside the slide grooves and is slidably connected thereto.

[0010] Furthermore, the positioning structure includes two screws rotatably connected to the top of the clamp plate through bearings, a handle is fixed to the top of the screw, a moving block is threadedly connected to the outer surface of the screw, and a pressing block is fixed to the lower end of the moving block.

[0011] Furthermore, through holes are provided at both left and right ends of the top end of the transverse plate, and the pressing block passes through the through holes to the inside of the transverse plate and is slidably connected thereto.

[0012] Furthermore, the two screw rods are located between the front and rear transverse plates, a threaded hole is provided at the top of the shift block, and the screw rods penetrate into the inner side of the threaded hole and are threadedly connected thereto.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] The plane positioning and clamping tool is provided with an extension component, and the extension plate can be retracted or moved out of the interior of the clamping plate, so that the length of the clamping plate can be adjusted according to the size of the workpiece, thereby facilitating the clamping and fixing of workpieces of different sizes. When positioning and fixing workpieces of different sizes, there is no need to remove the clamping plate from the base, and there is no need to compare the clamping plates of different sizes with the workpiece, which can effectively reduce the cumbersomeness of the equipment in clamping and fixing workpieces of different sizes and can increase the scope of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the splint and the extension plate of the utility model;

[0017] Figure 3 It is a schematic diagram of the top view of the inner cavity of the horizontal plate of the utility model;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the positioning structure of the utility model.

[0019] In the figure: 1 base, 2 positioning plate, 3 fastening screw, 4 clamping plate, 5 extension assembly, 51 extension plate, 52 connecting plate, 53 horizontal plate, 54 vertical block, 55 supporting block, 56 spring, 57 screw rod, 58 turning handle, 59 moving block, 510 pressing block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-2 A plane positioning and clamping tool in this embodiment includes a base 1, a plurality of positioning plates 2 are fixed to the top of the base 1, a plurality of fastening screws 3 are threadedly connected to the top of the base 1, a clamping plate 4 is fixed to the outer surface of the fastening screws 3, and an extension component 5 is provided inside the clamping plate 4.

[0022] It should be noted that the connection method between the fastening screw 3, the clamping plate 4 and the base 1 is well known to the public in the prior art, so its working principle will not be described in detail in this article.

[0023] See also Figure 2-3 The extension component 5 in this embodiment includes two extension plates 51 that are slidably connected to the inside of the clamp plate 4, two connecting plates 52 are fixed to the top of the two extension plates 51, the extension component 5 also includes two horizontal plates 53 fixed to the top of the clamp plate 4, the front and rear ends of the connecting plates 52 are fixed with vertical blocks 54, the top of the vertical blocks 54 is fixed with supporting blocks 55, the left and right groups of vertical blocks 54 are on the opposite sides of the springs 56, and the other ends of the left and right groups of springs 56 are respectively fixed to the left and right walls of the inner cavity of the two horizontal plates 53, and the extension component 5 also includes a positioning structure arranged at the top of the two horizontal plates 53.

[0024] Among them, the splint 4 is a rectangle with a hollow interior and missing left and right ends, so that the two extension plates 51 can be moved in or out of the interior of the splint 4 to extend the length of the splint 4. There is no need to remove the splint 4 from the base 1, and workpieces of different sizes can be positioned and fixed. The two horizontal plates 53 are both rectangles with a hollow interior and missing lower ends.

[0025] Moreover, two sliding holes are provided at the left and right ends of the top of the splint 4, and the vertical block 54 passes through the interior of the sliding hole and is slidably connected thereto, so that the splint 4 is connected to the two cross plates 53, so that the vertical block 54 can pass through the interior of the cross plate 53, so that the vertical block 54 can squeeze the spring 56 in the inner cavity of the cross plate 53.

[0026] In addition, the support block 55 is T-shaped, and two slide grooves are opened on the top of the inner cavity of the horizontal plate 53. The support block 55 is located on the inner side of the slide groove and is slidably connected thereto, which can limit the movement range of the vertical block 54 in the inner cavity of the horizontal plate 53, so that the vertical block 54 can accurately squeeze the spring 56 and prevent the extension plate 51 from completely falling off from the splint 4.

[0027] See also Figure 4 The positioning structure in this embodiment includes two screws 57 rotatably connected to the top of the splint 4 through bearings, a handle 58 is fixed to the top of the screw 57, a moving block 59 is threadedly connected to the outer surface of the screw 57, and a pressing block 510 is fixed to the lower end of the moving block 59.

[0028] Secondly, through holes are provided at both ends of the top of the horizontal plate 53, and the pressing block 510 passes through the through holes to the interior of the horizontal plate 53 and is slidably connected thereto, so that the pressing block 510 can be moved out of or into the interior of the horizontal plate 53, and the pressing block 510 is in a T shape, which can prevent the pressing block 510 from being completely moved out of the horizontal plate 53.

[0029] In addition, two screw rods 57 are located between the front and rear horizontal plates 53, and a threaded hole is provided at the top of the moving block 59. The screw rod 57 passes through the inner side of the threaded hole and is threadedly connected thereto, so that the screw rod 57 can drive the moving block 59 to move up and down through the threaded hole.

[0030] The working principle of the above embodiment is:

[0031] When in use, if a workpiece of a smaller size needs to be clamped and fixed, the screw 57 is rotated by the turning handle 58, so that the screw 57 drives the moving block 59 to move upward, so that the moving block 59 drives the two pressing blocks 510 of the same group to move upward, so that the pressing block 510 no longer presses and fixes the extension plate 51, and the extension plate 51 can be pulled out of the clamping plate 4. When the extension plate 51 gradually moves out of the inside of the clamping plate 4, it drives the two vertical blocks 54 of the same group to squeeze the spring 56. When the extension plate 51 contacts one side wall of the workpiece, the screw rod 57 can be rotated in the opposite direction, so that the screw rod 57 drives the moving block 59 to move downward, so that the two pressing blocks 510 are moved from the inside of the horizontal plate 53 to the inside of the clamping plate 4, so that the extension plate 51 can be pressed and fixed, that is, the extension plates 51 on both sides of the workpiece can be positioned and fixed, so that the length of the clamping plate 4 can be extended, so that the clamping plate 4 does not need to be removed from the base 1, and the clamping plate 4 can clamp the workpiece on the positioning plate 2;

[0032] If it is necessary to clamp and fix a larger workpiece, repeat the above steps. The pressure block 510 no longer positions and fixes the extension plate 51. Under the elastic force of the spring 56, the spring 56 can push the vertical block 54 to move in the inner cavity of the horizontal plate 53, so that the two vertical blocks 54 in the same group can pull the extension plate 51 to move to the inside of the clamp 4, thereby shortening the length of the clamp 4 so that the length of the clamp 4 can be adjusted according to the size of the workpiece, thereby facilitating the clamping and fixing of workpieces of different sizes. When positioning and fixing workpieces of different sizes, there is no need to remove the clamp 4 from the base 1, and there is no need to compare the clamps 4 of different sizes with the workpieces, which can effectively reduce the cumbersomeness of the equipment in clamping and fixing workpieces of different sizes and increase the scope of use.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plane positioning and clamping tool, comprising a base (1), characterized in that: A plurality of positioning plates (2) are fixed to the top of the base (1), a plurality of fastening screws (3) are threadedly connected to the top of the base (1), a clamping plate (4) is fixed to the outer surface of the fastening screws (3), and an extension component (5) is provided inside the clamping plate (4); The extension assembly (5) includes two extension plates (51) which are slidably connected to the inside of the clamping plate (4), two connecting plates (52) are fixed to the top of the two extension plates (51), the extension assembly (5) also includes two transverse plates (53) fixed to the top of the clamping plate (4), the front and rear ends of the connecting plates (52) are fixed with vertical blocks (54), the top of the vertical blocks (54) are fixed with supporting blocks (55), and the left and right groups of vertical blocks (54) are provided with springs (56) on the opposite sides. The extension assembly (5) also includes a positioning structure arranged at the top of the two transverse plates (53).

2. A plane positioning and clamping tool according to claim 1, characterized in that: The clamping plate (4) is in the shape of a rectangle with a hollow interior and missing left and right ends, and the two horizontal plates (53) are both in the shape of a rectangle with a hollow interior and missing lower ends.

3. The plane positioning and clamping tool according to claim 1, characterized in that: Two sliding holes are provided at both left and right ends of the top of the clamping plate (4), and the upright block (54) penetrates into the interior of the sliding hole and is slidably connected thereto.

4. The plane positioning and clamping tool according to claim 1, characterized in that: The support block (55) is T-shaped, and two slide grooves are provided on the top of the inner cavity of the transverse plate (53). The support block (55) is located inside the slide grooves and is slidably connected thereto.

5. The plane positioning and clamping tool according to claim 1, characterized in that: The positioning structure comprises two screw rods (57) rotatably connected to the top of the clamping plate (4) via bearings, a turning handle (58) is fixed to the top of the screw rods (57), a moving block (59) is threadedly connected to the outer surface of the screw rods (57), and a pressing block (510) is fixed to the lower end of the moving block (59).

6. A plane positioning and clamping tool according to claim 5, characterized in that: Through holes are provided at both left and right ends of the top end of the transverse plate (53), and the pressing block (510) penetrates through the through holes to the inside of the transverse plate (53) and is slidably connected thereto.

7. The plane positioning and clamping tool according to claim 5, characterized in that: The two screw rods (57) are located between the front and rear transverse plates (53), and a threaded hole is provided at the top of the shift block (59). The screw rods (57) penetrate the inner side of the threaded hole and are threadedly connected thereto.

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