Rotary drilling tool

Abstract

The invention discloses a rotary shaft drilling tool, comprising a clamp body, a rotary shaft, an open washer and a clamping nut. The rotary shaft is rotatably placed on the clamp body, and the open washer and the clamping nut are both matched with the rotary shaft to clamp the workpiece to be processed. Advantages: The rotary shaft drilling tool has a compact and simple structure, is convenient for loading and unloading workpieces, is convenient for flipping and drilling, and does not need to align the tool every time.

Description

Technical Field

[0001] The present invention relates to a process equipment for mechanical processing, in particular to a drilling tool for rock drill gas distribution parts, in particular to a drilling tool for a valve cabinet cylinder wall on which two coplanar and cross-arranged radial air holes are arranged, which are one of the main gas distribution parts of a pneumatic rock drill. Background Art

[0002] Rock drilling equipment is used to break soft ores, demolish solid or cement buildings, and mine clay, etc. Rock drilling equipment is mainly pneumatic rock drills. The valve cabinet involved in this design is one of the main gas distribution parts of the pneumatic rock drill. This part requires high precision and has many processing steps. There are two coplanar and cross-arranged radial air holes on the wall of the valve cabinet, and the angle between the two holes is 144 degrees. These two cross-radial air holes are made on a drilling machine, so it is necessary to design a simple and practical drilling tool. Summary of the invention

[0003] The technical problem to be solved by the present invention is that the prior art mentioned in the background technology lacks a drilling tool suitable for use in a drilling machine for processing two coplanar and cross-arranged radial air holes on the valve cabinet cylinder wall on the valve cabinet.

[0004] The technical solution adopted by the present invention is: a rotating shaft type drilling tool, comprising a clamp body, a rotating shaft, an open washer and a clamping nut, the rotating shaft is rotatably placed on the clamp body, and the open washer and the clamping nut are both matched with the rotating shaft to clamp the workpiece to be processed;

[0005] The clamping body comprises a base, a vertical plate, a template, an end cover, a left limit block and a right limit block. The base is placed horizontally, the template is placed on the top of the vertical plate, and a drill sleeve is vertically installed on the template. The vertical plate is perpendicular to the base and fixedly connected to the base. A central circular hole for the rotating shaft to pass through is provided in the middle of the vertical plate. The end cover is fixed on the left plate surface of the vertical plate. An end cover hole concentric with the central circular hole is opened on the end cover. The left limit block and the right limit block are both arranged on the outer side surface of the end cover. The limit surface of the left limit block intersects with the limit surface of the right limit block and the included angle is equal to the angle between two coplanar and cross-arranged radial air holes to be processed on the workpiece to be processed.

[0006] The rotating shaft includes a positioning column, a positioning plate, a cylinder and a rotating shaft wrench. The positioning plate is vertically arranged at the left end of the positioning column, a stud is arranged at the right end of the positioning column, a tightening nut cooperates with the stud, a square block is arranged on the inner side of the stud on the positioning column, an open washer is stuck in the square block, the right end of the cylinder is vertically arranged on the left end disk surface of the positioning plate, a radial screw hole is arranged on the left end of the cylinder, and one end of the rotating shaft wrench is connected to the radial screw hole; the rotating shaft is inserted into the central circular hole of the vertical plate through the cylinder and is rotatably connected through the bearing.

[0007] The tooling of the present invention has a compact and simple structure for drilling, is convenient for loading and unloading workpieces, is convenient for turning over and drilling, and does not require tool adjustment every time.

[0008] The improvement of the technical solution of the present invention is that a diamond pin is vertically arranged on the surface of the positioning plate. The workpiece to be processed (valve cabinet) is installed on the rotating shaft, and the diamond pin cooperates with the incomplete pin hole on the workpiece to be processed (valve cabinet) to limit the axial rotation of the workpiece to be processed (valve cabinet).

[0009] The beneficial effects of the present invention are:

[0010] The rotary shaft drilling tool has a compact and simple structure, is convenient for loading and unloading workpieces, is convenient for turning over and drilling, and does not require tool adjustment every time. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is the first general drawing of the rotary drilling fixture (with the valve cabinet assembled in the drawing).

[0012] Figure 2 This is the second general drawing of the rotary shaft drilling fixture (with the valve cabinet assembled in the drawing).

[0013] Figure 3 It is a schematic diagram of the state of loading and unloading the valve cabinet of the rotary shaft drilling tool (the valve cabinet is not shown in the figure).

[0014] Figure 4 It is a schematic diagram of the specific clamp.

[0015] Figure 5 It is the assembly drawing of the rotating shaft, the locking nut and the diamond pin.

[0016] Figure 6 It is a schematic diagram of the valve cabinet. DETAILED DESCRIPTION

[0017] The technical solution of the present invention is described in detail below, but the protection scope of the present invention is not limited to the embodiments.

[0018] To make the content of the present invention more clearly understood, the following Figure 1-Figure 6 The specific implementation manner is further described.

[0019] In order to make the purpose, technical solution and advantages of 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] like Figure 6As shown, rock drilling equipment is used to break soft ores, demolish solid or cement buildings, mine clay, etc., and rock drilling equipment is mainly pneumatic rock drills. The valve cabinet to be processed involved in this embodiment is one of the main gas distribution parts of the pneumatic rock drill. The valve cabinet has high precision requirements and many processing steps. Among them, 90, valve cabinet, 91, first radial hole, 92, second radial hole, 96, incomplete pin hole, 97, valve cabinet inner hole.

[0021] like Figure 6 As shown, there are two coplanar and cross-arranged radial air holes on the valve cabinet wall, namely the first radial hole 91 and the second radial hole 92, and the angle between the two holes is 144 degrees. The two cross-radial air holes are made on a drilling machine, and it is necessary to design a simple and practical drilling tool.

[0022] like Figure 1 , 2 As shown in FIG. 3 , the rotary shaft drilling tool of this embodiment is placed as a whole on the workbench of the drilling machine, and the base 11 is pressed by a pressing plate (using a pressing plate to press the base 11 is a conventional technology) so that the drill bit of the main shaft of the drilling machine is aligned with the drill sleeve 50 .

[0023] like Figure 1 , 2 As shown in FIG. 3 , a rotating shaft type drilling tool of the present embodiment includes a clamp body 10, a rotating shaft 20, an open washer 40 and a clamping nut 30. The rotating shaft 20 is rotatably placed on the clamp body 10. The open washer 40 and the clamping nut 30 are both used in conjunction with the rotating shaft 20 to clamp the workpiece 90 to be processed.

[0024] like Figure 4 As shown, the clamp body 10 includes a base 11, a vertical plate 12, a template 13, an end cover 14, a left limit block 15 and a right limit block 16. The base 11 is placed horizontally, the template 13 is placed on the top of the vertical plate 12, and a drill sleeve 50 is vertically installed on the template 13; the drill sleeve 50 is interference-fitted with the hole on the template 13. The guide hole of the drill sleeve 50 corresponds to the radial hole to be processed on the valve cabinet 90.

[0025] like Figure 4 As shown, the vertical plate 12 is perpendicular to the base 11 and fixedly connected to the base 11. A central circular hole is provided in the middle of the vertical plate 12 for the rotation shaft 20 to pass through. The end cover 14 is fixed on the left plate surface of the vertical plate 12. An end cover hole concentric with the central circular hole is opened on the end cover 14. The left limit block 15 and the right limit block 16 are both arranged on the outer side of the end cover 14. The limit surface of the left limit block 15 intersects with the limit surface of the right limit block 16 and the included angle is equal to 144.

[0026] In this embodiment, the left limit block 15 and the right limit block 16 correspond to the first radial hole 91 and the second radial hole 92 on the valve cabinet 90, respectively. When the first radial hole 91 needs to be processed, the shaft wrench 27 in the shaft 20 is manually rotated to the left limit block 15 and the shaft wrench 27 is pressed against the left limit block 15, and the drill bit on the drilling machine is inserted into the drill sleeve 50 to process the first radial hole 91. After the first radial hole 91 is completed, the shaft wrench 27 in the shaft 20 is manually rotated to the right limit block 16 and the shaft wrench 27 is pressed against the right limit block 16, and the drill bit on the drilling machine is inserted into the drill sleeve 50 to process the second radial hole 92.

[0027] like Figure 5 As shown, the rotating shaft 20 includes a positioning column 21, a positioning plate 22, a cylinder 25 and a rotating shaft wrench 27. The positioning plate 22 is vertically arranged on the left end of the positioning column 21. A stud is arranged on the right end of the positioning column 21. The compression nut 30 cooperates with the stud. The outer diameter of the compression nut 30 is smaller than the inner hole 97 of the valve cabinet. A square block 24 is arranged on the inner side of the stud on the positioning column 21. The open washer 40 is inserted into the square block 24. The square surface on the square block 24 is matched with the gap of the open washer 40. The right end of the cylinder 25 is vertically arranged on the left end disk surface of the positioning plate 22. A radial screw hole is arranged on the left end of the cylinder 25. One end of the rotating shaft wrench 27 is connected to the radial screw hole.

[0028] like Figure 1 , 2 As shown in FIG. 3 , the shaft 20 is inserted into the central circular hole of the vertical plate 12 through the cylinder 25 and is rotatably connected through the bearing. The shaft wrench 27 is located between the left limit block 15 and the right limit block 16. Rotating the shaft wrench 27 drives the shaft 20 to rotate as a whole.

[0029] like Figure 5 As shown, a diamond pin 70 is vertically arranged on the surface of the positioning plate 22. The valve cabinet to be processed is installed on the rotating shaft 20, and the diamond pin 70 cooperates with the incomplete pin hole on the valve cabinet to be processed to limit the axial rotation of the valve cabinet to be processed.

[0030] like Figure 3 As shown, by slightly loosening the compression nut 30 with a wrench tool, the open gasket 40 can be pulled out laterally, and the processed valve cabinet 90 can be taken out axially, and another valve cabinet to be processed can be replaced, so that the inner hole 97 of the valve cabinet matches with the positioning column 21, and the incomplete pin hole 96 of the valve cabinet matches with the diamond pin 70; the left end face of the valve cabinet fits with the right positioning face 23 of the positioning plate 22, the open gasket 40 is inserted, and the compression nut 30 is tightened.

[0031] like Figure 1 and 2As shown, the valve cabinet 90 is installed in the rotating shaft 20, the inner hole 97 of the valve cabinet matches with the positioning column 21, and the incomplete pin hole 96 of the valve cabinet matches with the diamond pin 70; the left end surface of the valve cabinet fits with the right positioning surface 23 of the positioning plate 22, the open gasket 40 is inserted, and the compression nut 30 is tightened. The left limit block 15 and the right limit block 16 correspond to the first radial hole 91 and the second radial hole 92 on the valve cabinet 90 respectively, the shaft wrench 27 is rotated to the position of the left limit block 1, and the first radial hole 91 is processed; the shaft wrench 27 is rotated to the position of the right limit block 16, and the second radial hole 92 is processed.

[0032] The tooling of this embodiment has a compact and simple structure for drilling, is convenient for loading and unloading workpieces, is convenient for turning over and drilling, and does not require tool adjustment every time.

[0033] The working process of the tooling in this embodiment:

[0034] The drilling device is placed on the workbench of the drilling machine, and the base 11 is pressed by a pressing plate (using a pressing plate to press the base 11 is a conventional technology) to align the drill bit of the main shaft of the drilling machine with the drill sleeve 50.

[0035] Use a wrench tool to slightly loosen the compression nut 30, then pull out the open gasket 40 laterally, axially take out the processed valve cabinet 90 (if any), replace it with another valve cabinet to be processed, make the inner hole 97 of the valve cabinet match with the positioning column 21, and the incomplete pin hole 96 of the valve cabinet match with the diamond pin 70; the left end face of the valve cabinet fits with the right positioning face 23 of the positioning plate 22, snap in the open gasket 40, and tighten the compression nut 30.

[0036] The shaft wrench 27 is rotated to the position of the left limit block 1, and the shaft wrench 27 is pressed against the left limit block 15. The drill bit on the drilling machine is inserted into the drill sleeve 50 to process the first radial hole 91. During the process of processing the first radial hole 91, the operator's hand always presses the shaft wrench 27 to press the shaft wrench 27 against the left limit block 15. After completion, the shaft wrench 27 is rotated to the position of the right limit block 16, and the shaft wrench 27 is pressed against the right limit block 16. The drill bit on the drilling machine is inserted into the drill sleeve 50 to process the second radial hole 92. During the process of processing the second radial hole 92, the operator's hand always presses the shaft wrench 27 to press the shaft wrench 27 against the left limit block 15.

[0037] After drilling two holes, repeat the above steps.

[0038] Anything not specifically described in the specification of the present invention is prior art or can be implemented by existing technology. It should be understood that for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A rotary shaft drilling tool, characterized in that: The invention comprises a clamp body (10), a rotating shaft (20), an open washer (40) and a clamping nut (30); the rotating shaft (20) is rotatably placed on the clamp body (10); the open washer (40) and the clamping nut (30) are both matched with the rotating shaft (20) to clamp the workpiece (90); The clamp body (10) comprises a base (11), a vertical plate (12), a template (13), an end cover (14), a left limit block (15) and a right limit block (16); the base (11) is placed horizontally, the template (13) is placed on the top of the vertical plate (12), and a drill sleeve (50) is vertically installed on the template (13); the vertical plate (12) is perpendicular to the base (11) and fixedly connected to the base (11), and a rotating shaft (20) is provided in the middle of the vertical plate (12) The end cover (14) is fixed on the left side of the vertical plate (12), the end cover (14) is provided with an end cover hole concentric with the central circular hole, the left limit block (15) and the right limit block (16) are both arranged on the outer side of the end cover (14), the limit surface of the left limit block (15) intersects with the limit surface of the right limit block (16) and the included angle is equal to the angle between two coplanar and cross-arranged radial air holes to be processed on the workpiece (90); The rotating shaft (20) comprises a positioning column (21), a positioning plate (22), a cylinder (25) and a rotating shaft wrench (27). The positioning plate (22) is vertically arranged at the left end of the positioning column (21). A stud is arranged at the right end of the positioning column (21). A compression nut (30) cooperates with the stud. A square block (24) is arranged inside the stud on the positioning column (21). An open washer (40) is inserted into the square block (24). The right end of the cylinder (25) is vertically arranged on the left end of the positioning plate (22). A radial screw hole is arranged at the left end of the cylinder (25). One end of the rotating shaft wrench (27) is connected to the radial screw hole. The rotating shaft (20) is inserted into the central circular hole of the vertical plate (12) through the cylinder (25) and is rotatably connected through a bearing.

2. The rotary shaft drilling tool according to claim 1, characterized in that: A rhombus pin (70) is vertically arranged on the surface of the positioning plate (22).

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