Special-shaped clamping mechanism for drilling

Abstract

The utility model relates to the field, and discloses a special-shaped clamping mechanism for drilling, which comprises a base, the upper end of the base is fixedly connected with a fixing table, the upper end of the fixing table is provided with a storage groove, the fixing table is fixedly connected with a plurality of clamping cylinders which are arranged in an annular array, the output ends of the clamping cylinders are fixedly connected with fixing blocks, and the fixing blocks are fixedly connected with the clamping cylinders. One or more movable grooves are formed in the ends, away from the clamping air cylinders, of the fixed blocks, clamping blocks are slidably inserted into the movable grooves, springs are fixedly connected between the interiors of the movable grooves and the clamping blocks, and sliding holes connected with the movable grooves are formed in the upper ends of the fixed blocks; the upper ends of the clamping blocks are fixedly connected with sliding blocks slidably connected into the sliding holes, the ends, away from the movable grooves, of the fixing blocks are fixedly connected with baffles, and the sides, located on the sliding blocks, of the baffles are in threaded connection with fixing bolts. Compared with the prior art, the special-shaped workpiece clamping device has the advantages that multiple faces of a special-shaped workpiece can be clamped, and the clamping stability is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping special-shaped parts, in particular to a special-shaped clamping mechanism for drilling. Background Art

[0002] Using a drill to make a hole in a solid material is called drilling. The hole processing of various parts, except for a part that is completed by lathes, boring machines, milling machines, etc., a large part is completed by fitters using drilling machines and drilling tools (drills, reamer drills, reamers, etc.). When drilling on a drilling machine, the drill bit should generally complete two movements at the same time; the main movement, that is, the rotational movement of the drill bit around the axis (cutting movement); the auxiliary movement, that is, the linear movement of the drill bit along the axis toward the workpiece (feeding movement). Before drilling, the workpiece needs to be clamped to prevent the part from moving during the drilling process, causing the drill hole to deviate. However, most of the existing drilling fixtures clamp the workpiece due to the two parallel end faces of the clamping blocks. When the workpiece is an irregular and special-shaped workpiece, it is difficult to clamp it stably. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] The technical problem to be solved by the utility model is that it is impossible to clamp multiple surfaces of a special-shaped part, resulting in unstable clamping.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, the technical solution provided by the utility model is: a special-shaped clamping mechanism for drilling, comprising a base, a fixed table is fixedly connected to the upper end of the base, a storage groove is provided on the upper end of the fixed table, a plurality of clamping cylinders arranged along a circular array are fixedly connected to the fixed table, the output ends of the clamping cylinders are fixedly connected to fixed blocks, the fixed blocks are provided with at least one movable groove at one end away from the clamping cylinder, clamping blocks are slidably inserted in the movable grooves, springs are fixedly connected in the movable grooves and between the clamping blocks, sliding holes connected to the movable grooves are provided on the upper ends of the fixed blocks, sliding blocks slidably connected to the sliding holes are fixedly connected to the upper ends of the clamping blocks, a baffle is fixedly connected to the end of the fixed block away from the movable groove, and the baffle is threadedly connected to a fixing bolt on one side of the slider.

[0007] As an improvement, a waste trough is provided on one side of the base, and a waste hole connected to the waste trough is provided on the bottom surface of the storage trough.

[0008] As an improvement, guide blocks are fixedly connected to both sides of the fixed block, and the bottom surface of the storage groove is provided with guide rails that cooperate with the guide blocks.

[0009] As an improvement, a pull-out box is slidably inserted into the waste trough, and a handle is fixedly connected to one end of the pull-out box.

[0010] As an improvement, the clamping block is extended to one end of the movable groove and is fixedly connected with a trapezoidal block.

[0011] (III) Beneficial effects

[0012] The advantages of the utility model compared with the prior art are: the clamping cylinder can push the fixed blocks closer to each other to initially clamp the workpiece, and the multiple clamping blocks at one end of the fixed block can contact different surfaces of the special-shaped part. As the fixed block continues to approach the workpiece, the corresponding clamping block slides into the movable groove under the pressure of the workpiece surface, and then the clamping block is fixed by the fixing bolt, so that the special-shaped workpiece can be stably clamped. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model discloses an exploded view of a special-shaped clamping mechanism for drilling a hole.

[0014] Figure 2 The utility model is a structural schematic diagram of a special-shaped clamping mechanism for drilling.

[0015] Figure 3 The utility model is a cross-sectional view of a special-shaped clamping mechanism for drilling.

[0016] Figure 4 It is an enlarged view of position A of a special-shaped clamping mechanism for drilling a hole in the utility model.

[0017] As shown in the figure: 1. Base; 2. Fixed table; 3. Clamping cylinder; 4. Fixed block; 5. Movable groove; 6. Clamping block; 7. Slide hole; 8. Slider; 9. Spring; 10. Fixing bolt; 11. Waste hole; 12. Waste slot; 13. Pull-out box; 14. Handle; 15. Guide block; 16. Guide rail; 17. Storage slot; 18. Baffle. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] like Figure 1 , Figure 4As shown, a special-shaped clamping mechanism for drilling comprises a base 1, the upper end of the base 1 is fixedly connected to a fixed table 2, the upper end of the fixed table 2 is provided with a storage groove 17, a plurality of clamping cylinders 3 arranged along a circular array are fixedly connected to the fixed table 2, the output ends of the clamping cylinders 3 are fixedly connected to fixed blocks 4, both sides of the fixed blocks 4 are fixedly connected to guide blocks 15, the bottom surface of the storage groove 17 is provided with a guide slide rail 16 that cooperates with the guide block 15, the guide block 15 and the guide slide rail 16 can guide the movement trajectory of the fixed block 4 to prevent the movement of the fixed block 4 from deviating, the fixed block 4 is provided with at least one movable groove 5 at one end away from the clamping cylinder 3, the movable groove 5 is slidably inserted with a clamping block 6, the clamping block 6 extends to one end of the movable groove 5 and is fixedly connected with a trapezoidal block, the trapezoidal block can further increase the contact surface with the special-shaped part, and a spring 9 is fixedly connected between the movable groove 5 and the clamping block 6.

[0020] like Figure 2 As shown, the upper end of the fixed block 4 is provided with a sliding hole 7 connected to the movable groove 5, the upper end of the clamping block 6 is fixedly connected with a slider 8 slidably connected to the sliding hole 7, the end of the fixed block 4 away from the movable groove 5 is fixedly connected with a baffle 18, and the baffle 18 is located on one side of the slider 8 and is threadedly connected with a fixing bolt 10.

[0021] like Figure 3 As shown, a waste slot 12 is provided on one side of the base 1, and a waste hole 11 connected to the waste slot 12 is provided on the bottom surface of the storage slot 17. A pull-out box 13 is slidably inserted in the waste slot 12, and a handle 14 is fixedly connected to one end of the pull-out box 13.

[0022] When the cam 12 is in the closed position, the cam 12 is in the closed position, and the cam 12 is in the closed position, so that ...

[0023] 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", "comprises" or any other variations 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.

[0024] 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.

[0025] The above describes the utility model and its implementation methods, which are not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and do not deviate from the purpose of the invention of the utility model, they can creatively design a structure and embodiment similar to the technical solution, which should belong to the protection scope of the utility model.

Claims

1. A special-shaped clamping mechanism for drilling, comprising a base (1), the upper end of the base (1) is fixedly connected to a fixing platform (2), the upper end of the fixing platform (2) is provided with a storage groove (17), and the fixing platform (2) is fixedly connected to a plurality of clamping cylinders (3) arranged in a circular array, characterized in that: The output end of the clamping cylinder (3) is fixedly connected to a fixed block (4); the end of the fixed block (4) away from the clamping cylinder (3) is provided with at least one movable groove (5); a clamping block (6) is slidably inserted in the movable groove (5); a spring (9) is fixedly connected between the movable groove (5) and the clamping block (6); the upper end of the fixed block (4) is provided with a sliding hole (7) connected to the movable groove (5); the upper end of the clamping block (6) is fixedly connected to a sliding block (8) slidably connected to the sliding hole (7); the end of the fixed block (4) away from the movable groove (5) is fixedly connected to a baffle (18); the baffle (18) is located on one side of the sliding block (8) and is threadedly connected to a fixing bolt (10).

2. The special-shaped clamping mechanism for drilling according to claim 1, characterized in that: A waste material groove (12) is provided on one side of the base (1), and a waste material hole (11) communicating with the waste material groove (12) is provided on the bottom surface of the storage groove (17).

3. The special-shaped clamping mechanism for drilling according to claim 1, characterized in that: Guide blocks (15) are fixedly connected to both sides of the fixed block (4), and the bottom surface of the storage groove (17) is provided with a guide slide rail (16) that cooperates with the guide block (15).

4. The special-shaped clamping mechanism for drilling according to claim 2, characterized in that: A pull-out box (13) is slidably inserted into the waste trough (12), and a handle (14) is fixedly connected to one end of the pull-out box (13).

5. The special-shaped clamping mechanism for drilling according to claim 1, characterized in that: The clamping block (6) is extended to one end of the movable groove (5) and is fixedly connected to a trapezoidal block.

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