CN215698426U - Spline drawing groove tool - Google Patents
Spline drawing groove tool Download PDFInfo
- Publication number
- CN215698426U CN215698426U CN202121832751.1U CN202121832751U CN215698426U CN 215698426 U CN215698426 U CN 215698426U CN 202121832751 U CN202121832751 U CN 202121832751U CN 215698426 U CN215698426 U CN 215698426U
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- spline
- positioning
- positioning rod
- movable groove
- broach
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Abstract
The utility model relates to the technical field of tool fixtures, and can solve the problem of internal spline processing by matching with a small-tonnage broaching machine and reduce the production cost of enterprises. A spline broaching groove tool comprises a fixed disc, a positioning rod and a positioning key, wherein the fixed disc is fixed on a broaching machine through a bolt, and the positioning rod is fixedly connected to the front surface of the fixed disc and is perpendicular to the front surface; the length direction of the broach movable groove runs through the back surface of the fixed disc from the end surface of the overhanging end of the positioning rod along the axial direction of the positioning rod; the depth direction of the broach movable groove is along the radial direction of the positioning rod, and the depth of the broach movable groove on the fixed disc in a first subsection is greater than that of the broach movable groove on the positioning rod in a second subsection; at least one positioning key groove is radially formed in the outer wall of the overhanging end of the positioning rod, one side of the positioning key is matched in the positioning key groove, and the other side of the positioning key is matched in an internal spline machined by the spline sleeve blank.
Description
Technical Field
The utility model relates to the technical field of tool fixtures, in particular to a spline broaching tool.
Background
The inner spline of the spline sleeve is generally processed on a broaching machine, in the processing process, a blank of the spline sleeve is attached to an end plate or placed on a platform, a broach passes through the blank and then clamps a head part by a transmission device, the transmission device drives the broach to do axial linear motion, and a cutting part of the outer wall of the broach cuts the inner spline on the inner wall of the blank.
Conventional spline housings typically use a broach to pull out all of the internal splines at once. However, if the spline housing is long and the depth of the internal spline is large, a broaching machine with large tonnage and long broaching tool is needed to pull out all the internal splines at one time, and the cost is high for enterprises.
Disclosure of Invention
The utility model aims to overcome the defects in the background technology, and provides a spline broaching tool which is matched with a small-tonnage broaching machine to solve the problem of processing an internal spline and reduce the production cost of an enterprise.
The technical purpose of the utility model is realized as follows:
a spline broaching groove tool comprises a fixed disc, a positioning rod and a positioning key, wherein the fixed disc is fixed on a broaching machine through a bolt, and the positioning rod is fixedly connected to the front surface of the fixed disc and is perpendicular to the front surface; the length direction of the broach movable groove runs through the back surface of the fixed disc from the end surface of the overhanging end of the positioning rod along the axial direction of the positioning rod; the depth direction of the broach movable groove is along the radial direction of the positioning rod, and the depth of the broach movable groove on the fixed disc in a first subsection is greater than that of the broach movable groove on the positioning rod in a second subsection; at least one positioning key groove is radially formed in the outer wall of the overhanging end of the positioning rod, one side of the positioning key is matched in the positioning key groove, and the other side of the positioning key is matched in an internal spline machined by the spline sleeve blank.
Preferably, the included angle between the positioning key groove and the broach movable groove is equal to the included angle between the internal splines to be processed of the spline sleeve blank.
Preferably, the positioning key groove extends a distance rearward in a radial direction from the end surface of the overhanging end.
The utility model has the beneficial effects that: the positioning rod is utilized to position the spline sleeve blank, the disc abuts against the end face of the spline sleeve blank to limit the axial movement of the spline sleeve blank, the positioning key limits the circumferential rotation of the spline sleeve blank, the broaching tool only processes one internal spline once, and all internal splines can be processed after multiple grooving, so that the broaching machine with smaller tonnage can play a role of a large-tonnage broaching machine, and the production cost of enterprises is reduced.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a right-view structural diagram of the present invention.
FIG. 3 is an enlarged view of the sectional structure of the positioning key.
The figure shows that: the device comprises a fixed disc 1, a positioning through hole 2, a broach movable groove 3, a broach movable groove section I3.1, a broach movable groove section II 3.2, a positioning rod 4, a positioning key groove 5 and a positioning key 6.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, but the present invention is not limited to the following examples, so that the objects, solutions and advantages of the present invention can be more clearly understood by those skilled in the art.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified and limited, specific meanings of the general terms in the present invention may be specifically understood by those skilled in the art.
As shown in fig. 1 and 2, the spline groove broaching tool provided by the utility model comprises a fixed disc 1, a positioning rod 4 and a positioning key 6. More than two positioning through holes 2 are formed in the fixed disk 1, the fixed disk 1 is fixed on the broaching machine after bolts penetrate through the positioning through holes 2, and generally, the fixed disk 1 is arranged in the vertical direction. The locating lever 4 is perpendicular with the front of fixed disk 1, and the one end fixed connection of locating lever 4 is in the front of fixed disk 1, and the other end overhang of locating lever 4.
The fixed disc 1 is provided with a broach movable groove subsection one 3.1, the positioning rod 4 is provided with a broach movable groove subsection two 3.2, and the two subsections are in butt joint along a straight line to form a broach movable groove 3 of a single-key broach. The length direction of the broach movable groove 3 is along the axial direction of the positioning rod 4, and the broach movable groove penetrates through the back surface of the fixed disc 1 from the end surface of the overhanging end of the positioning rod 4. The depth direction of the broach movable groove 3 is along the radial direction of the positioning rod 4, the depth of the first broach movable groove segment is 3.1, which is greater than the depth of the second broach movable groove segment 3.2, and the depth of the exceeding part is the depth of the internal spline processed by the broach. At least one positioning key groove 5 is radially arranged on the outer wall of the overhanging end of the positioning rod 4, one side of a positioning key 6 is matched in the positioning key groove 5, and the other side of the positioning key is matched in an internal spline processed by the spline sleeve blank to limit the circumferential rotation of the spline sleeve blank.
And the included angle between the positioning key groove 5 and the broach movable groove 3 is equal to the included angle between the internal splines to be processed of the spline sleeve blank. For example, fig. 1 and 2 illustrate an included angle of 90 ° for positioning of the quarter internal spline. If the included angle of the internal spline is 60 degrees, the included angle between the positioning key groove 5 and the broach movable groove 3 is also 60 degrees. In order to facilitate the insertion of the positioning key 6 between the positioning key groove 5 and the internal spline by a worker, the positioning key groove 5 extends a distance rearward in a radial direction from the end surface of the overhanging end. As shown in fig. 3, the navigation key 6 is preferably a square key.
In fig. 1 and 2, the single-key broach and the spline housing blank are omitted.
The working principle of the utility model is as follows: the workman overlaps spline housing embryo spare on locating lever 4, insert fixed disk 1 from the overhanging end of locating lever 4 with the single bond broach after that, the head of single bond broach passes fixed disk 1 back by the transmission centre gripping and the application of force, process out first internal spline, then take off spline housing embryo spare and single bond broach, aim at location keyway 5 with first internal spline, insert the circumferential direction that location key 6 injectd spline housing embryo spare, the operation processing out second internal spline according to above again, then aim at location keyway 5 back with second internal spline spacing, carry out the processing of third internal spline, so repeatedly, finish until all internal spline processes.
The above description is only a preferred embodiment of the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a spline trombone slide frock which characterized in that: the fixed plate (1) is fixed on a broaching machine through bolts, and the positioning rod (4) is fixedly connected to the front surface of the fixed plate (1) and is perpendicular to the front surface; the length direction of the broach movable groove (3) runs through the back surface of the fixed disc (1) from the end surface of the overhanging end of the positioning rod (4) along the axial direction of the positioning rod (4); the depth direction of the broach movable groove (3) is along the radial direction of the positioning rod (4), and the depth of the broach movable groove section I (3.1) on the fixed disk (1) is greater than the depth of the broach movable groove section II (3.2) on the positioning rod (4); at least one positioning key groove (5) is radially formed in the outer wall of the overhanging end of the positioning rod (4), one side of a positioning key (6) is matched in the positioning key groove (5), and the other side of the positioning key is matched in an internal spline machined by the spline sleeve blank.
2. The spline broaching tool according to claim 1, characterized in that: and the included angle between the positioning key groove (5) and the broach movable groove (3) is equal to the included angle between the internal splines to be processed of the spline sleeve blank.
3. The spline broaching tool according to claim 1 or 2, characterized in that: the positioning key groove (5) extends backwards from the end face of the overhanging end along the radial direction for a certain distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121832751.1U CN215698426U (en) | 2021-08-06 | 2021-08-06 | Spline drawing groove tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121832751.1U CN215698426U (en) | 2021-08-06 | 2021-08-06 | Spline drawing groove tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215698426U true CN215698426U (en) | 2022-02-01 |
Family
ID=79993670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121832751.1U Active CN215698426U (en) | 2021-08-06 | 2021-08-06 | Spline drawing groove tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215698426U (en) |
-
2021
- 2021-08-06 CN CN202121832751.1U patent/CN215698426U/en active Active
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