Tool for drilling safety holes in heads of hexagon-headed bolts

Abstract

The tool for drilling the safety holes in the heads of the hexagon-headed bolts comprises a clamping sleeve, a bottom plate and an indexing handle, one end of the clamping sleeve is installed on the bottom plate through a roller bearing, the indexing handle is connected with the clamping sleeve, six clamping grooves extending in the axial direction of the clamping sleeve are formed in the end, away from the bottom plate, of the clamping sleeve at intervals, and the indexing handle is connected with the clamping sleeve. The outer wall of the clamping sleeve is provided with an external thread, the mold is located in the clamping sleeve and is cylindrical, the mold is provided with a hexagonal groove, the outer wall of the mold is provided with a plurality of drill holes extending in the radial direction, the drill holes are communicated with the hexagonal groove, the mold is located in the clamping sleeve, and the drill holes correspond to the clamping grooves in a one-to-one mode. The end, provided with the clamping groove, of the clamping sleeve is in threaded connection with the upper tightening and plugging cap. The multiple safety holes can be drilled through one-time clamping, the time for drilling the multiple safety holes can be greatly shortened, the problem that a tool needs to be disassembled multiple times when the multiple safety holes are machined is solved, and the machining efficiency and the machining precision are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bolt processing, and in particular relates to a tool for drilling a plurality of hexagonal head bolt head safety holes. Background Art

[0002] The existing processing method for hexagonal bolts that require multiple head safety holes is to rely on workers to manually disassemble the tooling and rotate the angle to achieve the drilling of multiple safety holes on the head of the hexagonal bolt. This processing method has certain defects. Since workers need to disassemble the tooling for each safety hole, the time for processing the head safety holes is greatly extended. In addition, since the clamp needs to be disassembled for processing each safety hole, the height of the safety holes may be inconsistent due to the different clamping positions each time, which affects the processing accuracy and even causes the hexagonal bolt to be scrapped. Utility Model Content

[0003] Therefore, the utility model aims to solve the problem in the prior art that each safety hole needs to be processed by disassembling the clamp, and the different clamping positions during each clamping may cause inconsistent heights of the safety holes, thereby affecting the processing accuracy.

[0004] To this end, the technical solution adopted is that the utility model is a tool for drilling multiple hexagonal bolt head safety holes, including: a positioning sleeve, a base plate and a dividing handle, one end of the positioning sleeve is installed on the base plate through a roller bearing, the dividing handle is connected to the positioning sleeve, and the positioning sleeve is provided with six slots extending axially along the positioning sleeve at one end away from the base plate, and an external thread is provided on the outer wall of the positioning sleeve. The mold is located in the positioning sleeve, and a hexagonal groove is provided on the mold. A plurality of drill holes extending radially are provided on the outer wall of the mold, and the drill holes are connected to the hexagonal groove. The mold is located in the positioning sleeve, and the drill holes correspond to the slots one by one. The end of the positioning sleeve provided with the slot is threadedly connected to the upper tightening cap.

[0005] Preferably, a first semicircular pin hole is provided on the inner wall of the positioning sleeve, and a second semicircular pin hole is provided on the outer wall of the mold, and the first semicircular pin hole matches the second semicircular pin hole.

[0006] Preferably, three groups of first semicircular pin holes and second semicircular pin holes are provided.

[0007] Preferably, the base plate is in the shape of a cuboid.

[0008] Preferably, the mold is cylindrical.

[0009] Preferably, anti-slip grooves are provided on the outer wall of the upper tightening cap.

[0010] The technical solution of the utility model has the following advantages: the utility model can drill multiple safety holes through one clamping, which can greatly shorten the time of drilling multiple safety holes, solves the problem of multiple disassembly of tooling when processing multiple safety holes, and improves processing efficiency and processing accuracy.

[0011] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures particularly pointed out in the written description and the drawings.

[0012] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the mold in the utility model;

[0016] Figure 3 It is a structural schematic diagram of the upper tight plugging cap in the utility model;

[0017] Figure 4 It is the installation diagram of the utility model;

[0018] Among them, 1. Positioning sleeve; 2. Base plate; 3. Indexing handle; 4. Roller bearing; 5. Slot; 6. Mold; 7. Hexagonal groove; 8. Drill hole; 9. Tighten the plug cap; 10. First semicircular pin hole; 11. Second semicircular pin hole. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to the other component.

[0021] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] The utility model provides a tool for drilling multiple hexagonal head bolt head safety holes, such as Figure 1-4 As shown, it includes: a locking sleeve 1, a base plate 2 and a dividing handle 3. One end of the locking sleeve 1 is installed on the base plate 2 through a roller bearing 4. The dividing handle 3 is connected to the locking sleeve 1. Six locking grooves 5 extending in the axial direction of the locking sleeve 1 are arranged at intervals at one end of the locking sleeve 1 away from the base plate 2, and an external thread is arranged on the outer wall of the locking sleeve 1. The mold 6 is located in the locking sleeve 1. The mold 6 is provided with a hexagonal groove 7. A plurality of drill holes 8 extending radially are arranged on the outer wall of the mold 6. The drill holes 8 are connected with the hexagonal grooves 7. The mold 6 is located in the locking sleeve 1. The drill holes 8 correspond to the locking grooves 5 one by one. The end of the locking sleeve 1 provided with the locking grooves 5 is threadedly connected to the upper tightening cap 9.

[0024] A first semicircular pin hole 10 is provided on the inner wall of the positioning sleeve 1, and a second semicircular pin hole 11 is provided on the outer wall of the mold 6. The first semicircular pin hole 10 matches the second semicircular pin hole 11. There are three groups of the first semicircular pin hole 10 and the second semicircular pin hole 11. Pins are inserted into the pin holes formed by the first semicircular pin hole 10 and the second semicircular pin hole 11 to improve the stability of the connection. The base plate 2 is a rectangular parallelepiped, and the mold 6 is a cylindrical shape, which is convenient for the mold 6 to be installed with the positioning sleeve 1. The outer wall of the upper tightening cap 9 is provided with anti-slip grooves, which can increase friction and facilitate tightening the upper tightening cap.

[0025] The beneficial technical effects of the above technical solution are as follows: use a bench vise to clamp both sides of the base plate 2 to fix it, install the mold 6 into the positioning sleeve 1, each drill hole 8 of the mold 6 corresponds to each slot 5 of the positioning sleeve 1, insert the pin column into the pin hole composed of the first semicircular pin hole 10 and the second semicircular pin hole 11 to fix the mold 6, then insert the hexagonal bolt into the mold 6, tighten the plug 9 on the positioning sleeve 1, and after the mold 6 is fixed, turn the indexing handle 3 to adjust the angle and use the drilling machine to drill a hole. After drilling a hole, turn the indexing handle 3 to the corresponding slot position, and insert the indexing handle 3 into the corresponding fixed slot, and then drill another hole. Multiple safety holes can be drilled by clamping once, which can greatly shorten the time of drilling multiple safety holes, solve the problem of multiple disassembly of tooling when processing multiple safety holes, and improve the processing efficiency and processing accuracy.

[0026] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A tool for drilling multiple hexagonal bolt head safety holes, characterized in that: include: A positioning sleeve (1), a base plate (2) and a dividing handle (3), one end of the positioning sleeve (1) is mounted on the base plate (2) via a roller bearing (4), the dividing handle (3) is connected to the positioning sleeve (1), one end of the positioning sleeve (1) away from the base plate (2) is provided with six grooves (5) extending in the axial direction of the positioning sleeve (1) at intervals, and an external thread is provided on the outer wall of the positioning sleeve (1), the mold (6) is located in the positioning sleeve (1), the mold (6) is provided with a hexagonal groove (7), the outer wall of the mold (6) is provided with a plurality of drill holes (8) extending in the radial direction, the drill holes (8) are connected to the hexagonal groove (7), the mold (6) is located in the positioning sleeve (1), the drill holes (8) correspond to the grooves (5) one by one, and one end of the positioning sleeve (1) provided with the grooves (5) is threadedly connected to an upper tight plug cap (9).

2. A tool for drilling a plurality of hexagonal bolt head safety holes according to claim 1, characterized in that: A first semicircular pin hole (10) is provided on the inner wall of the positioning sleeve (1), and a second semicircular pin hole (11) is provided on the outer wall of the mold (6). The first semicircular pin hole (10) matches the second semicircular pin hole (11).

3. A tool for drilling a plurality of hexagonal bolt head safety holes according to claim 2, characterized in that: Three groups of first semicircular pin holes (10) and second semicircular pin holes (11) are provided.

4. The tool for drilling a plurality of hexagonal bolt head safety holes according to claim 1, characterized in that: The base plate (2) is in the shape of a rectangular parallelepiped.

5. The tool for drilling a plurality of hexagonal bolt head safety holes according to claim 1, characterized in that: The mold (6) is cylindrical.

6. The tool for drilling a plurality of hexagonal bolt head safety holes according to claim 1, characterized in that: The outer wall of the upper tightening plug cap (9) is provided with anti-slip grooves.

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