CN204221458U - A kind of bevel gear face of cylinder boring grab - Google Patents

Abstract

The utility model discloses a kind of bevel gear face of cylinder boring grab, relate to field of fixtures.Described bevel gear face of cylinder boring grab comprises framework, cylinder, alignment pin, hold-down nut, described framework one end is provided with air cylinder fixed plate, the other end is provided with riser, described riser is provided with the first hole, described cylinder is fixed in air cylinder fixed plate, one end of the piston rod of described cylinder and the small end of bevel gear hole to be drilled compress, one end of described alignment pin passes from described first hole and penetrates the centre bore of bevel gear hole to be drilled, and locked by hold-down nut at the other end, described riser top is provided with drill jig cage plate, described drill jig cage plate is provided with the second hole, drill jig sleeve is provided with in described second hole, the dead in line in the axis in described second hole and bevel gear hole to be drilled.The utility model solves the complex structure of existing bevel gear face of cylinder boring grab, and clamping is time-consuming, and efficiency is low, the problem that processing cost is high.

Description

A Bevel Gear Cylindrical Surface Drilling Fixture

technical field

The utility model relates to the field of fixtures, in particular to a bevel gear cylindrical surface drilling fixture.

Background technique

Some bevel gears need to be connected with external mechanisms to realize transmission. Usually, a cylindrical surface is provided at the other end of the bevel tooth surface, and a hole is drilled on the cylindrical surface, and the pin passes through the hole to realize the connection with the external mechanism.

The current bevel gear cylindrical surface drilling fixture adopts bevel tooth surface positioning and screw locking. This positioning needs to be used on CNC milling machines or machining centers. Low, high processing cost.

Utility model content

The purpose of the utility model is to provide a bevel gear cylindrical surface drilling jig, which can make the jig simple in structure, can be operated on a drilling machine, has high processing efficiency and low processing cost.

For this purpose, the utility model adopts the following technical solutions:

A bevel gear cylindrical surface drilling jig, the jig includes a frame, a cylinder, a positioning pin, and a fixing nut, one end of the frame is provided with a cylinder fixing plate, and the other end is provided with a vertical plate, and the vertical plate is provided with a first hole , the cylinder is fixed on the cylinder fixing plate, one end of the piston rod of the cylinder is pressed against the small end of the bevel gear to be drilled, and one end of the positioning pin passes through the first hole and penetrates into the hole to be drilled. In the central hole of the drilled bevel gear, the other end of the locating pin is provided with a thread, and the locating pin is locked by the fixing nut and the thread, and the top of the vertical plate is provided with a template cover plate, and the drill The template cover plate is provided with a second hole, and the drill template cover is arranged in the second hole, and the axis of the second hole coincides with the axis of the hole to be drilled by the bevel gear.

Further, one end of the locating pin that penetrates into the center hole of the bevel gear to be drilled is provided with a radial hole passing through the locating pin, and the radial hole coincides with the axis of the bevel gear to be drilled.

Further, the vertical plate is also provided with a third hole on one side of the first hole, and the positioning pin includes a first pin part and a second pin part, and the diameter of the second pin part is larger than the diameter of the first pin part, so One end of the second pin portion close to the first pin portion is placed in the third hole, and the other end is placed in the central hole of the bevel gear to be drilled, and the second pin portion is provided with the bevel gear to be drilled. A radial hole in which the axes of the boreholes coincide.

Specifically, the jig set is made of alloy.

Further, the cylinder fixing plate is provided with a fourth hole, the cylinder is fixed on one side of the fourth hole, and the piston rod of the cylinder passes through the fourth hole.

Further, the clamp further includes a bottom plate, the bottom plate is perpendicular to the vertical plate and the cylinder fixing plate, and the bottom plate is fixed to the cylinder fixing plate and the vertical plate by bolts.

Furthermore, the vertical plate and the template cover plate are fixed by bolts.

The beneficial effects of the utility model have:

The bevel gear cylindrical surface drilling jig proposed by the utility model uses positioning pins to locate the workpiece and the cylinder to fix the workpiece, which replaces the previous method of positioning the bevel tooth surface and locking the screw, which makes the clamping simple and the workpiece can be processed on the drilling machine , which greatly saves the cost; the positioning pin is provided with a radial hole that coincides with the axis of the workpiece to be drilled, so that the workpiece generates less heat and deformation when drilling; the second pin portion of the positioning pin One end is placed in the third hole, and the other end is placed in the center hole of the bevel gear, which can not only position the bevel gear well, but also meet the strength requirements; the drill sleeve is made of alloy, with high precision and wear resistance; The cylinder fixed plate is provided with a fourth hole for the piston rod of the cylinder to pass through, and the structure is simple; the bottom plate, the vertical plate and the cylinder fixed plate are all fixed by bolts, and the vertical plate and the drilling formwork sleeve are bolted The connection is fixed, and the fixing method is simple and easy to disassemble.

Description of drawings

Fig. 1 is a cross-sectional view of a bevel gear cylindrical surface drilling jig provided by Embodiment 1 of the present invention;

Fig. 2 is a partial schematic view of the bevel gear cylindrical surface drilling jig provided by the first embodiment of the present invention.

In the figure, 1. frame; 2. cylinder; 3. positioning pin; 4. fixed nut; 5. cylinder fixing plate; 6. vertical plate; 7. first hole; 8. piston rod; 10. Second hole; 11. Drilling die set; 12. Radial hole; 13. Third hole; 14. First pin portion; 15. Second pin portion; 16. Fourth hole; 17. Bottom plate.

Detailed ways

The technical scheme of the utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

Fig. 1 is a cross-sectional view of a bevel gear cylindrical surface drilling jig provided by Embodiment 1 of the present utility model.

As shown in Figure 1, a kind of bevel gear cylindrical surface drilling jig, described jig comprises frame 1, cylinder 2, positioning pin 3, fixed nut 4, described frame 1 end is provided with cylinder fixing plate 5, and the other end is provided with Vertical plate 6, described vertical plate 6 is provided with the first hole 7, and described cylinder 2 is fixed on the cylinder fixed plate 5, and one end of the piston rod 8 of described cylinder 2 is compressed with the small end of the bevel gear to be drilled , one end of the locating pin 3 passes through the first hole 7 and penetrates into the center hole of the bevel gear to be drilled, the other end of the locating pin 3 is provided with a screw thread, and the fixing nut 4 is connected to the Thread locking described locating pin 3, described riser top is provided with drilling form cover plate 9, and described drilling form cover plate 9 is provided with second hole 10, is provided with drilling form cover 11 in the described second hole 10, The axis of the second hole 10 coincides with the axis of the hole to be drilled by the bevel gear. This solution replaces the previous method of positioning the bevel tooth surface and locking the screw, which makes the clamping simple, and the workpiece can be processed on the drilling machine, greatly improving Cost savings.

One end of said locating pin 3 passing through the bevel gear center hole to be drilled is provided with a radial hole 12 passing through said locating pin, said radial hole 12 coincides with the axis of the bevel gear to be drilled, and said The positioning pin 3 is provided with the radial hole 12, so that the workpiece generates less heat and less deformation when drilling.

The vertical plate 6 is also provided with a third hole 13 on one side of the first hole 7, and the positioning pin 3 includes a first pin portion 14 and a second pin portion 15, and the diameter of the second pin portion 15 is larger than that of the first pin portion. The diameter of the pin portion 14, the second pin portion 15 is placed in the third hole 13 near one end of the first pin portion 14, and the other end is placed in the center hole of the bevel gear to be drilled. The second pin portion 15 is provided with a radial hole 12 coincident with the axis of the bevel gear to be drilled, one end of the second pin portion 15 of the positioning pin is placed in the third hole 13, and the other end is placed in the bevel gear In the center hole, it can not only locate the bevel gear well, but also meet the strength requirements.

The jig cover 11 is made of alloy, the jig cover 9 is made of No. 45 steel or Q235 steel, and the jig cover 11 is embedded in the jig cover 9, which not only saves cost but also makes the jig cover High precision and wear resistance.

The cylinder fixing plate 5 is provided with a fourth hole 16, the cylinder 2 is fixed on one side of the fourth hole 16, and the piston rod 8 of the cylinder 2 passes through the fourth hole 16. This fixing method Simple and reliable.

Described fixture also comprises base plate 17, and described base plate 17 is all perpendicular to described vertical plate 6 and described cylinder fixed plate 5, and described base plate 17 and described cylinder fixed plate 5 and described vertical plate 6 all adopt bolt connection and fix. , the vertical plate 6 and the template cover plate 9 are fixed by bolt connection, and this fixing method is simple and easy to disassemble.

Apparently, the above-mentioned embodiments of the present utility model are only examples for clearly illustrating the present utility model, rather than limiting the implementation manner of the present utility model. For those of ordinary skill in the art, on the basis of the above description, other changes or changes in different forms can also be made. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the utility model shall be included in the protection scope of the claims of the utility model.

Claims (7)

1. a bevel gear cylindrical surface drilling fixture, is characterized in that, described fixture comprises framework (1), cylinder (2), positioning pin (3), fixed nut (4), and described framework (1) one end is provided with There is a cylinder fixing plate (5), and the other end is provided with a vertical plate (6), and the vertical plate (6) is provided with a first hole (7), and the cylinder (2) is fixed on the cylinder fixing plate (5), One end of the piston rod (8) of the cylinder (2) is pressed against the small end of the bevel gear to be drilled, and one end of the positioning pin (3) passes through the first hole (7) and penetrates into the In the central hole of the bevel gear to be drilled, the other end of the positioning pin (3) is provided with a thread, and the positioning pin (3) is locked by the fixing nut (4) and the thread, and the vertical plate ( 6) The top is provided with a template cover (9), and the template cover (9) is provided with a second hole (10), and a template cover (11) is provided in the second hole (10). The axis of the second hole (10) coincides with the axis of the hole to be drilled by the bevel gear. 2. A kind of bevel gear cylindrical surface drilling jig as claimed in claim 1, is characterized in that, one end of said locating pin (3) passing through the bevel gear center hole to be drilled is provided with through said locating pin ( 3) the radial hole (12), said radial hole (12) coincides with the axis of the bevel gear to be drilled. 3. A kind of bevel gear cylinder drilling jig as claimed in claim 2, characterized in that, the vertical plate (6) is also provided with a third hole (13) on one side of the first hole (7), The positioning pin (3) includes a first pin portion (14) and a second pin portion (15), the diameter of the second pin portion (15) is larger than the diameter of the first pin portion (14), and the second pin portion (15) One end near the first pin portion (14) is placed in the third hole (13), and the other end is placed in the central hole of the bevel gear to be drilled, and the second pin portion (15 ) is provided with a radial hole (12) coincident with the axis of the bevel gear to be drilled. 4. The bevel gear cylindrical surface drilling jig according to any one of claims 1 to 3, characterized in that, the jig cover (11) is made of alloy. 5. A kind of bevel gear cylindrical surface drilling jig as claimed in claim 1, characterized in that, the cylinder fixing plate (5) is provided with a fourth hole (16), and the cylinder (2) is fixed on the On one side of the fourth hole (16), the piston rod (8) of the cylinder (2) passes through the fourth hole (16). 6. A kind of bevel gear cylindrical surface drilling fixture as claimed in claim 1, is characterized in that, described fixture also comprises base plate (17), and described base plate (17) and described vertical plate (6) and described The cylinder fixing plates (5) are all vertical, and the base plate (17) is bolted to the cylinder fixing plate (5) and the vertical plate (6). 7. A bevel gear cylindrical surface drilling jig according to claim 1, characterized in that, the vertical plate (6) and the template cover plate (9) are fixed by bolts.