TWM515919U - Processing machine for slip yoke - Google Patents

Description

Processing machine for cross hole telescopic yoke

This creation is related to the manufacture of a cross-hole telescopic yoke, especially regarding a cross-hole telescopic yoke.

Please refer to FIG. 1 , the cross-hole yoke 1 , which may also be called a slip yoke, is an important part of an automobile transmission bearing. The structure of the cross-hole yoke 1 includes a transmission rod 2 and a The axially perpendicular connecting yoke 3 of the transmission rod 2 has a first yoke hole 4 and a second yoke hole 5 whose central axes are on the same line.

Please refer to FIG. 2 again. The cross-hole yoke 1 is usually a pair of two and is used together with a cross cylinder 6 having a four-column 7 which is two-two. The two ribs 7 are respectively placed in the two yoke holes 4 and the two yoke holes 5 of the two sliding yokes 3, which are assembled together. A transmission structure capable of universal rotation is formed.

It is conventionally known that the cross hole yoke 1 is manufactured by first casting (or other machining), and the rough blank of the Phillips yoke 1 is first manufactured, and then the second processing is performed again. The first yoke hole 4 and the second yoke hole 5 are intended to have the first yoke hole 4 and the central axis of the second yoke hole 5 on the same line, and more precisely, the concentricity error must be satisfied. Usually, the error must be within plus or minus two (10 micrometers), otherwise it is considered as a defective product and must be eliminated.

In order to meet the accuracy requirements, the conventional method for manufacturing the cross-hole yoke 1 is generally processed by CNC precision machining, so that the first yoke hole 4 and the high precision characteristic of the CNC precision machining are used. The difference in the central axis of the second yoke hole 5 satisfies the accuracy requirement. However, the machining speed of CNC precision machining is slow, and the maintenance cost of the machine is high, which will increase the manufacturing cost of the sliding yoke. In other words, the manufacturing cost of the cross-hole yoke 1 is high, and the manufacturing cost cannot be reduced. Demand.

The main purpose of the present invention is to disclose a processing machine for a cross-hole telescopic yoke, which is fast in manufacture and low in cost, and can meet the demand for use.

In order to achieve the above object, the present invention provides a processing machine for a cross-hole telescopic yoke for processing a cross-hole telescopic yoke which is a coarse embryo, the cross-hole telescopic yoke having oppositely disposed two yoke holes, including a broach and a a broach feeding device, a positioning fixture, a side block and a movable fixing head for mounting the broach, wherein the broach feeding device is provided with the broach and driving the pulling tool to have a feeding stroke, Positioning the fixture to position the cross hole expansion yoke, the two yoke holes of the cross hole expansion yoke are located on the feeding stroke of the broach, and the side spacer is disposed on a side of the positioning fixture away from the broach And abutting the positioned cross-hole telescopic yoke, the movable fixing head has a fixed position for fixing the aligned cross-hole telescopic yoke and a releasing position away from the cross-hole telescopic yoke.

The processing method includes a rough blank preparation program, a positioning program, a fixing program and a processing program, wherein the rough blank preparation program is to prepare the cross hole expansion and contraction yoke; the positioning program is to position the positioning fixture by using the positioning fixture a cross-hole telescopic yoke; the fixing program is to fix the cross-hole telescopic yoke by using the movable fixing head and the side spacer; and the machining program is to drive the broach in the feeding stroke by using the broach feeding device, The two yoke holes of the cross hole telescopic yoke are machined.

According to the present invention, in the single feed stroke of the broach, the yoke hole of the Phillips yoke is simultaneously processed by the broach, thereby ensuring the central axis of the yoke hole of the Phillips yoke. The concentricity error is within a relatively small range, and it uses a conventional mechanical processing machine (drawing machine), which is fast in processing and low in maintenance cost, so that it can meet the requirement of reducing manufacturing cost and satisfying the use. demand.

The detailed description and technical content of this creation are as follows:

Please refer to FIG. 3A and FIG. 3B for a schematic structural configuration of a preferred embodiment of the present invention. As shown in the figure: the present invention is a cross-hole telescopic yoke 10 for processing a rough embryo. The cross-hole telescopic yoke 10 has opposite yoke holes 11 including a broach 20 and a broach. The broach feed device 30 of 20, a positioning fixture 40, a side block 50 and a movable fixing head 60. Wherein the broach feeding device 30 is provided with the broach 20 and drives the broach 20 to have a feeding stroke 21, and the means for driving the broach 20 to move, there are many ways, and can be seen in a general machining machine, Descriptions and descriptions are not repeated here.

The positioning fixture 40 is positioned on the cross-hole yoke 10 so that the yoke hole 11 of the Phillips yoke 10 is located on the feeding stroke 21 of the broach 20. In practice, the positioning fixture 40 is A beam 41 for abutting the two yoke holes 11 has a pair of beam through holes 42 which are to be yoke holes 11 for the broach 20 to pass through.

Please refer to FIG. 3C again. The side spacer 50 is disposed on a side of the positioning fixture 40 away from the broach 20, and abuts the aligned vertical hole yoke 10, and the side is supported by the side. The block 50 has a side-by-side perforation 51 through which the broach 20 passes. The movable fixing head 60 has a fixed position (as shown in FIG. 3C) for fixing the aligned cross-hole telescopic yoke 10 and a releasing position away from the cross-hole telescopic yoke 10.

The beam 41 is fixed to a fixed body 70, and at least two through rods 80 pass through the side block 50 and the fixed body 70, and the side block 50 has a degree of freedom of displacement relative to the fixed body 70. The movable fixing head 60 has a pressing head 61 (shown as "Fig. 3C") which abuts against the positioned vertical hole telescopic yoke 10 by pressing the side resting block 50 at the fixed position.

In addition, the at least two threaded rods 80 are disposed between the side spacers 50 and the fixed body 70, respectively, and an elastic member 81 that presses the side spacers 50 and the fixed body 70 are respectively disposed. An elastic member such as a spring or a telescopic block is used to position the side spacer 50 away from the beam 41 by the elastic force of the elastic member 81, so that the cross hole yoke 10 is placed on the beam 41. In addition, the abutting head 61 can be elastically slidably disposed on the movable fixing head 60 through a buffer spring 62. When the abutting head 61 presses against the side block 50, the side block 50 is abutted When the cross-hole telescopic yoke 10 is positioned, the movable fixing head 60 can be continued downward until the cross-hole yoke 10 is pressed and fixed by the displacement buffer of the buffer spring 62, that is, the abutting head The side spacer 50 is pressed against the side, and the movable fixing head 60 is pressed and fixed to the cross hole yoke 10 (as shown in Fig. 3C).

Please refer to FIG. 3D and FIG. 4 together. The steps of the creation method include a rough preparation program S1, a positioning program S2, a fixed program S3 and a processing program S4.

The rough preparation step S1 is for preparing the cross hole expansion yoke 10, and the positioning program S2 is for positioning the cross hole expansion yoke 10 by using the positioning fixture 40 (as shown in FIG. 3B); the fixing program S3 To fix the cross-hole telescopic yoke 10 (as shown in FIG. 3C) by the movable fixing head 60 and the side spacer 50, the machining program S4 drives the broach 20 by the broach feeding device 30. In the feed stroke 21, the two yoke holes 11 of the cross hole bellows yoke 10 are simultaneously processed (as shown in Fig. 3D).

In summary, the present invention uses the broach to simultaneously machine the two yoke holes of the Phillips yoke in a single feed stroke of the broach, the yoke holes being the same feed stroke Processing, according to which the concentricity error of the central axis of the yoke hole of the cross-hole telescopic yoke can be ensured, within a relatively small range, to meet the requirements of use, and it is driven by a conventional mechanical machine Yes, the processing is fast, and the manufacturing and maintenance costs are low, so that the demand for reducing the manufacturing cost can be met.

Therefore, this creation is highly progressive and meets the requirements for applying for a patent. If you apply in accordance with the law, the Bureau will grant the patent as soon as possible.

The present invention has been described in detail above, but the above is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited. That is, all changes and modifications made in accordance with the scope of this creation application shall remain within the scope of the patent of this creation.

Conventional knowledge
1‧‧‧cross hole yoke
2‧‧‧Transmission rod
3‧‧‧ Connection yoke
4‧‧‧First yoke hole
5‧‧‧second yoke hole
6‧‧‧Cross cylinder
7‧‧‧Cylinder creation
S1‧‧‧ rough preparation procedure
S2‧‧‧ Positioning procedure
S3‧‧‧fixed procedure
S4‧‧‧Processing procedure
10‧‧‧cross hole yoke
11‧‧‧ yoke hole
20‧‧‧ broach
21‧‧‧Feed stroke
30‧‧‧ broach feed device
40‧‧‧ positioning fixture
41‧‧‧ beams
42‧‧‧beam piercing
50‧‧‧ Side block
51‧‧‧ Side by perforation
60‧‧‧ active fixed head
61‧‧‧Close to the head
62‧‧‧buffer spring
70‧‧‧Fixed body
80‧‧‧ wearing rod
81‧‧‧Flexible parts

FIG. 1 is a cross-sectional structural view of a conventional cruciform telescopic yoke. 2 is a schematic structural view of a conventional cross cylinder. FIG. 3A is a schematic structural diagram of a preferred embodiment of the present invention. FIG. 3B is a schematic view showing the setting of the broach according to a preferred embodiment of the present invention. FIG. 3C is a schematic diagram 1 of the structural action of a preferred embodiment of the present invention. FIG. 3D is a second schematic view of the structure of a preferred embodiment of the present invention. 4 is a flow chart of a preferred embodiment of the present invention.

10‧‧‧cross hole yoke

20‧‧‧ broach

21‧‧‧Feed stroke

30‧‧‧ broach feed device

40‧‧‧ positioning fixture

41‧‧‧ beams

50‧‧‧ Side block

60‧‧‧ active fixed head

61‧‧‧Close to the head

62‧‧‧buffer spring

70‧‧‧Fixed body

80‧‧‧ wearing rod

81‧‧‧Flexible parts

Claims (5)

A processing machine for a cross-hole telescopic yoke for processing a cross-hole telescopic yoke which is a coarse embryo, the cross-hole telescopic yoke having oppositely disposed two yoke holes, comprising: a broach; a broach feed a device, the broach feeding device is provided with the broach and driving the broaching tool to have a feeding stroke; a positioning fixture, the positioning fixture positioning the Phillips telescopic yoke, and the yoke hole of the Phillips telescopic yoke Abutting on the feed stroke of the broach; one side of the block, the side block being disposed on a side of the positioning fixture away from the broach, and abutting the aligned rib yoke; and an activity The fixed head has a fixed position for fixing the aligned cross hole telescopic yoke and a release position away from the cross hole telescopic yoke. The processing machine for a cross-hole telescopic yoke according to claim 1, wherein the positioning fixture is a beam for the two yoke holes to abut, the beam has a pair of yoke holes for the pull The cross member of the knives is perforated, and the side slab has a side perforation through which the broach passes. The processing machine for a cross-hole telescopic yoke according to claim 2, wherein the beam is fixed to a fixed body, and at least two rods pass through the side block and the fixed body, and the side is The block has a degree of freedom with respect to the displacement of the fixed body, and the movable head has a pressing head that abuts the displacement of the side block at the fixed position and abuts the aligned rib yoke. The processing machine for a cross-hole telescopic yoke according to claim 3, wherein the at least two threading rods are disposed between the side spacers and the fixed body, respectively, and the pressing of the side spacers and the fixing Separate elastic parts of the body. The processing machine for a cross-hole telescopic yoke according to claim 3, wherein the abutting head is elastically slidably disposed on the movable fixing head through a buffer spring.