CN206393241U - A kind of fixture that two secondary room milling shift fork prong either sides are once realized to knife - Google Patents

Abstract

The utility model discloses a fixture for one-time tool setting to realize two horizontal milling on any side of the fork mouth of a shift fork. Seat, the cylindrical pin on the upper end of the positioning support and the positioning push plate. The cylindrical pin and the positioning support are of an integrated structure. The positioning push plate is a flat structure with a waist-shaped hole in the middle. The positioning push plate passes through The waist-shaped hole is set on the cylindrical pin; the clamping device includes a double-ended stud, a split washer and a hexagonal nut; when milling any side of the fork fork in this design, one tool setting can be performed twice. Milling at one time reduces the number of times of tool setting and improves processing efficiency.

Description

A fixture capable of performing two horizontal milling operations on either side of a shift fork fork at one time

technical field

The utility model relates to the technical field of fixture design, in particular to a fixture which realizes two times of horizontal milling on any side of a fork mouth of a shift fork at one time for tool setting.

Background technique

As shown in Figure 1-Figure 2, the parts diagram of the fork is shown. The two sides of the fork mouth face the axis of the inner hole of the fork. There is a certain verticality requirement, and the tolerance of the fork mouth is very small. During processing Generally, double-sided milling machines are used for processing, but some small enterprises and small workshops do not have double-sided milling machines, so they can only use ordinary milling machines for processing, and ordinary milling machines are very troublesome when processing the side of the shift fork, because the tool needs to be set many times, so the efficiency is very low.

Utility model content

The technical problem to be solved by the utility model is to provide a clamp that can realize two horizontal milling on any side of the fork mouth of the shift fork through one tool setting on an ordinary body milling machine, so as to reduce the number of times of tool setting and improve the processing efficiency.

In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a clamp that realizes two horizontal milling on any side of the fork mouth of the shift fork for one tool setting, including a clamp body, and the clamp body is provided with a positioning device and a clamping device. device, the positioning device includes a positioning support, a cylindrical pin on the upper end of the positioning support, and a positioning push plate, the cylindrical pin and the positioning support are of an integrated structure, and the positioning push plate is a flat plate with a waist-shaped hole in the middle Shaped structure, the positioning push plate is sleeved on the cylindrical pin through the waist hole; the clamping device includes a double-ended stud, a split washer and a hexagonal nut.

Further, the positioning push plate is divided into two halves with the center line of the wide sides on both sides as the bisector, and the end surface of one half is higher than the other half.

Further, the cylindrical pin is provided with a threaded hole for matching with a double-ended stud.

Further, the clamp body is provided with a hexagon head support.

Further, the positioning support and the clip body are detachably connected.

When the fixture provided by the utility model mills any side of the fork mouth of the shift fork, milling can be performed twice for one tool setting, which reduces the times of tool setting and improves the processing efficiency.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, together with the following specific embodiments, are used to explain the present invention, but do not constitute a limitation to the present invention. In the attached picture:

Fig. 1 is a top view of a shift fork part;

Fig. 2 is the sectional view of 1-1 direction in Fig. 1;

Fig. 3 is the front view of the assembly of the utility model and the shift fork parts;

Fig. 4 is the top view of Fig. 3;

Fig. 5 is the left view of Fig. 3;

Fig. 6 is the sectional view of C-C direction in Fig. 5;

Fig. 7 is the sectional view of D-D direction in Fig. 5;

Figure 8 is a top view of the clip body;

Fig. 9 is a sectional view of A-A direction in Fig. 8;

Fig. 10 is the structural representation of positioning push plate;

Figure 11 is a top view of Figure 10;

In the figure: clip body 1; positioning support 2; cylindrical pin 3; shift fork 4; hexagon head support 5; stud 6; hex nut 7; Right side 12; left half 13; right half 14.

The structure and working method of the present utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

detailed description

As shown in Figure 1-Figure 2, it is a part diagram of the shift fork 4, the two sides of the fork mouth, that is, the left side 11 and the right side 12 in Figure 2 have a certain perpendicularity to the axis of the inner hole of the shift fork In order to realize the horizontal milling on the left side or the right side of the shift fork fork for two times with only one tool setting on an ordinary milling machine, this design provides a special fixture for this shift fork part; The clamp includes a clamp body 1, as shown in Figures 8-9, the clamp body 1 is a flat plate structure, with seat ears on both sides for fixing, and the clamp body 1 is provided with a pair of shift forks 4 for positioning and clamping A positioning device and a clamping device for tight action, wherein the positioning device includes a positioning support 2, a cylindrical pin 3 and a positioning push plate 9, and the bottom of the positioning support 2 is provided with four through holes, and bolts, nuts and pads can be used The piece is fixed on the clamp body 1, the cylindrical pin 3 is located at the upper end of the positioning support 2 and is integrated with the positioning support 2, the structure of the positioning push plate 9 is shown in Figure 10-Figure 11, and the positioning push plate 9 is The central part is provided with a flat plate structure with a waist-shaped hole, and the positioning push plate 9 is sleeved on the cylindrical pin 3 of the positioning support 2 through the waist-shaped hole, and the inner hole of the shift fork workpiece is placed on the positioning push plate after passing through the cylindrical pin 3. On the plate 9, the cooperation between the positioning push plate 9 and the cylindrical pin 3 limits the five degrees of freedom of the workpiece, the cylindrical pin 3 limits the two degrees of freedom of the workpiece, and the positioning push plate 9 limits the three degrees of freedom of the workpiece. The center line of the wide sides on both sides is the bisector and divides into the left half 13 and the right half 14, and the end face of the left half 13 is higher than the distance of the material to be milled away for the second time than the right half 14; The tightening device includes a double-ended stud 6, an open washer 8 and a hexagon nut 7, and the cylindrical pin 3 is provided with a threaded hole for cooperating with the double-ended stud 6, and then through the hexagonal nut 7 and the open washer 8 to realize dialing Clamping of the fork workpiece; the clamp body 1 is also provided with a hexagonal head support 5 .

When milling one side of the shift fork horizontally, such as the left side of the horizontal milling, push the positioning push plate 9, and match the right half 14 of the positioning push plate 9 in Fig. After passing through the cylindrical pin 3, the inner hole of the workpiece is placed on the positioning push plate 9, and the nut is adjusted to adjust the hexagon head support 5, so that the workpiece is in a proper position, and then the opening gasket 8 is placed, and finally the hexagon nut 7 is tightened. Use the milling cutter for the first rough milling on the left side, loosen the hexagonal nut 7 after milling, hold the workpiece, keep the height of the milling cutter in the Z direction, and push the positioning push plate 9 to the left half 13 (i.e. The side with the higher end surface) cooperates with the cylindrical pin 3, adjusts the hexagon head support 5 again, and finally tightens the hexagon nut 7. At this time, due to the rise of the end surface of the positioning push plate 9, the left side of the fork is higher than the bottom surface of the milling cutter. The distance is the height that needs to be milled off for the second time. Continue to use the milling cutter to perform the second finish milling on the left side. When milling the right side horizontally, it is the same as the above process, so I won’t repeat it here. On the side, milling can be performed twice with only one tool alignment, which reduces the number of tool alignments and improves processing efficiency.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. The utility model does not depart from the spirit and scope of the utility model There will also be various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (5)

1. A clamp that realizes two times of horizontal milling on any side of a shift fork fork at one time, comprising a clamp body (1), and a positioning device and a clamping device are provided on the clamp body (1), characterized in that: The positioning device comprises a positioning support (2), a cylindrical pin (3) at the upper end of the positioning support and a positioning push plate (9), and the cylindrical pin (3) and the positioning support (2) are of an integrated structure, so The positioning push plate (9) is a plate-shaped structure with a waist-shaped hole in the middle, and the positioning push plate (9) is sleeved on the cylindrical pin (3) through the waist-shaped hole; the clamping device includes a double-ended screw Post (6), split washer (8) and hex nut (7). 2. A kind of fixture according to claim 1, which realizes two horizontal milling clamps on any side of the fork mouth for two times of tool setting. The bisector divides into two halves, with one half having a higher end face than the other half. 3. A fixture for one-time tool setting to realize two horizontal milling on any side of the fork mouth of a shift fork according to claim 1, characterized in that: the cylindrical pin (3) is provided with a double-ended stud (6 ) with threaded holes. 4. A fixture for one-time tool setting to realize two horizontal milling on any side of the fork mouth of a shift fork according to claim 1, characterized in that: the clamp body (1) is provided with a hexagonal head support (5). 5. A fixture for one-time tool setting to realize two horizontal milling on any side of the fork mouth of a shift fork according to claim 1, characterized in that: the positioning support (2) and the clamp body (1) are detachable connect.