CN109604743B - Gear shaft processing location frock - Google Patents
Gear shaft processing location frock Download PDFInfo
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- CN109604743B CN109604743B CN201910059155.5A CN201910059155A CN109604743B CN 109604743 B CN109604743 B CN 109604743B CN 201910059155 A CN201910059155 A CN 201910059155A CN 109604743 B CN109604743 B CN 109604743B
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- positioning
- positioning block
- gear shaft
- groove
- block
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/02—Loading, unloading or chucking arrangements for workpieces
- B23F23/06—Chucking arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
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Abstract
The invention discloses a gear shaft machining and positioning tool which comprises an upper positioning block and a lower positioning block, wherein a first positioning groove is arranged at the side end of the upper positioning block in a penetrating manner, and an accommodating cavity is formed in the end part, positioned on the first positioning groove, of the upper positioning block; a second positioning groove penetrates through the side end of the lower positioning block, and a limiting cavity is arranged on the lower positioning block and between the second positioning grooves; the containing cavity and the limiting cavity are respectively provided with a positioning tooth, after the upper positioning block is abutted against the lower positioning block, the first positioning groove and the second positioning groove form a closed clamping opening, the containing cavity is positioned above the containing cavity, and a fixing assembly for compressing and fixing the upper positioning block is arranged between the upper positioning block and the lower positioning block. The gear shaft machining and positioning tool has the advantages of simple structure and stable and reliable clamping, and improves the machining precision of the gear shaft.
Description
Technical Field
The invention relates to the technical field of mechanical tool fixtures, in particular to a gear shaft machining and positioning tool.
Background
Gear shaft refers to a mechanical part that supports and rotates with a rotating part to transmit motion, torque, or bending moment. Typically in the form of a metal rod, each section may have a different diameter. The parts of the machine that rotate are mounted on the shaft. The gear shaft is connected with the gear through the key to transmit torque to achieve a transmission effect, so that the key groove machining precision becomes important.
As shown in fig. 1, a conventional gear shaft 1 includes a shaft body 11 and a gear 12 on the shaft body 11. The axes of the gear 12 and the shaft 11 coincide with each other. A key groove 13 needs to be processed on the shaft body at one end of the shaft body 11 in the length direction; the other end needs to be processed with a straight hole 14 perpendicular to the key slot 13, and the requirement of perpendicularity needs to be met between the straight hole 14 and the key slot 13. Therefore, an efficient and stable clamp is needed for clamping the gear shaft so as to facilitate machining of the gear shaft.
Disclosure of Invention
The invention aims to provide a gear shaft machining and positioning tool which has the advantages of simple structure and stable and reliable clamping, and improves the machining precision of a gear shaft.
The above object of the present invention is achieved by the following technical solutions:
a gear shaft machining and positioning tool comprises an upper positioning block and a lower positioning block, wherein a first positioning groove penetrates through the side end of the upper positioning block, and an accommodating cavity is formed in the end part, located on the first positioning groove, of the upper positioning block; a second positioning groove penetrates through the side end of the lower positioning block, and a limiting cavity is arranged on the lower positioning block and between the second positioning grooves; the accommodating cavity and the limiting cavity are respectively provided with a positioning tooth, after the upper positioning block is pressed against the lower positioning block, the first positioning groove and the second positioning groove form a closed clamping opening, the accommodating cavity is positioned above the limiting cavity, and a fixing assembly for compressing and fixing the upper positioning block is arranged between the upper positioning block and the lower positioning block.
Through adopting above-mentioned technical scheme, when carrying out the clamping to the gear shaft, place the gear shaft on the locating piece down earlier, make the gear of gear shaft and the location tooth meshing in the spacing chamber mutually, then will go up the locating piece lock on the locating piece down, make the gear shaft centre gripping between the two, then through fixed subassembly with the stable fixing of last locating piece on the locating piece down, to the radial of gear shaft, spacing in the axial, prevent simultaneously that the rotation from taking place for the gear shaft, the stability of gear shaft clamping has been guaranteed, thereby precision when having improved gear shaft processing keyway and straight hole.
The invention is further configured to: the cross section of the positioning teeth is trapezoidal.
Through adopting above-mentioned technical scheme, make the more comprehensive gear meshing with on the gear shaft of location tooth, guarantee the fixed effect to the gear shaft.
The invention is further configured to: the first positioning groove and the second positioning groove are arc-shaped grooves, the containing cavity and the limiting cavity are both semicircular, the first positioning groove and the containing cavity are coaxial, and the second positioning groove and the limiting cavity are coaxial; the positioning teeth are circumferentially distributed in the accommodating cavity and the limiting cavity.
Through adopting above-mentioned technical scheme, first constant head tank and second constant head tank cooperation form can encircle the axis body of gear shaft press from both sides the mouth, and hold the chamber and form the spacing space of just placing the gear with spacing chamber cooperation, carry out spacing fixedly to the gear shaft in axial and footpath.
The invention is further configured to: the shapes of the upper positioning block and the lower positioning block are rectangular bodies, and the length of the upper positioning block is smaller than that of the lower positioning block.
Through adopting above-mentioned technical scheme, go up the locating piece and set up to the cuboid convenience at the bench clamping, and the length of going up the locating piece is less than the length of locating piece down and makes the gear shaft centre gripping back between upper and lower locating piece, and the axis body need process the position of keyway and expose externally, can not lead to the fact the interference to the aircraft nose at the machine-hour, makes the course of working more smooth.
The invention is further configured to: the connecting rod is fixedly connected to one side, provided with the first positioning groove, of the upper positioning block in a perpendicular mode, the connecting hole is formed in one side, provided with the second positioning groove, of the lower positioning block, and the connecting rod is in plug-in fit with the connecting hole.
Through adopting above-mentioned technical scheme, go up the locating piece lock when locating piece down, the connecting rod inserts the connecting hole earlier, plays the effect of direction, and after the connecting rod inserted the connecting hole completely, both cooperations play the effect of pre-fixing again to last locating piece and lower locating piece, prevent that the skew takes place for middle and upper locating piece and lower locating piece in the fixed process, make the fixed process between them more stable smooth.
The invention is further configured to: the appearance of connecting rod is round platform form, connecting hole and connecting rod looks adaptation.
Through adopting above-mentioned technical scheme, the connecting rod sets up round platform form and makes the process that the connecting rod inserted the connecting hole more smooth.
The invention is further configured to: the fixed subassembly is including articulated connecting bolt and the joint piece of threaded connection on connecting bolt free end on the locating piece lateral wall down, go up the outer edge of locating piece be equipped with the joint groove of connecting bolt adaptation.
Through adopting above-mentioned technical scheme to the pin joint of connecting the bolt is the fulcrum, orders about the joint piece and rotates towards the opening part in joint groove, changes over to the joint inslot back when connecting the bolt, rotates the joint piece and compresses tightly it on last locating piece, realizes going up the fixed connection of locating piece and lower locating piece.
The invention is further configured to: the side wall of the lower positioning block is provided with an arc-shaped abdicating groove, the upper end of the upper positioning block is provided with an annular connecting flange, and the clamping groove is arranged on the connecting flange.
Through adopting above-mentioned technical scheme, the groove of stepping down makes the connecting bolt can turn to vertical state, both can reduce the whole volume of frock, has guaranteed the joint effect of joint piece and last locating piece again.
In conclusion, the invention has the following beneficial effects:
1. the gear shaft is fixed on the machine tool through the tool, so that the stability of clamping the gear shaft is ensured, the part of the gear shaft, which needs to be provided with the key groove, is abducted, the interference with the machine head is avoided, and the smoothness of the machining process is improved;
2. through set up connecting rod and connecting hole between upper and lower locating piece, the connecting rod plays the effect of pre-fixing with lower locating piece to last locating piece with the connecting hole cooperation, prevents to take place the skew between the two among the fixing process, makes fixing process between them more stable smooth.
Drawings
FIG. 1 is a schematic structural view of a conventional gear shaft;
FIG. 2 is a schematic structural diagram of an upper positioning block in the embodiment;
FIG. 3 is a schematic structural diagram of a lower positioning block in the embodiment;
FIG. 4 is a schematic structural view of the positioning tool for machining the gear shaft in the embodiment.
In the figure, 1, a gear shaft; 11. a shaft body; 12. a gear; 13. a keyway; 14. a straight hole; 2. an upper positioning block; 21. a first positioning groove; 22. an accommodating chamber; 23. a connecting flange; 24. a clamping groove; 25. a connecting rod; 3. a lower positioning block; 31. a second positioning groove; 32. a limiting cavity; 33. a yielding groove; 34. connecting holes; 4. positioning teeth; 5. a fixing assembly; 51. a connecting bolt; 52. a clamping block; 53. and (5) connecting lugs.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b): the utility model provides a gear shaft processing location frock, as shown in fig. 2, includes that the appearance is the upper locating piece 2 and the lower locating piece 3 of rectangle form, the length of upper locating piece 2 is less than the length of lower locating piece 3, wherein the lower extreme of upper locating piece 2 runs through and is provided with first constant head tank 21 to set up the chamber 22 that holds that is linked together with first constant head tank 21 at the tip of upper locating piece 2, first constant head tank 21 is the arc wall, holds the inside of chamber 22 and is semi-circular, both coaxial.
Correspondingly, as shown in fig. 3, a second positioning groove 31 is penetratingly formed at the upper end of the lower positioning block 3, an open limiting cavity 32 is formed between the second positioning grooves 31 and the upper end of the lower positioning block 3, and the limiting cavity 32 is communicated with the second positioning groove 31; the second positioning groove 31 is also an arc-shaped groove, the inside of the limiting cavity 32 is semicircular, and the second positioning groove and the limiting cavity are coaxially arranged. The inner walls of the accommodating cavity 22 and the limiting cavity 32 are fixedly connected with positioning teeth 4, and the cross sections of the positioning teeth 4 are trapezoidal.
When the upper positioning block 2 abuts against the lower positioning block 3, the first positioning groove 21 and the second positioning groove 31 form a clamping opening (see fig. 4) capable of encircling the shaft body 11 of the gear shaft 1; at this moment, the accommodating cavity 22 is located above the limiting cavity 32, the accommodating cavity and the limiting cavity are matched to form a limiting space for just placing the gear 12, the length of the upper positioning block 2 is smaller than that of the lower positioning block 3, so that the gear shaft 1 is clamped between the upper positioning block 3 and the lower positioning block 3, the position of the shaft body 11, which is required to be processed with the key groove 13, is exposed outside, interference to a machine head cannot be caused during machining, and the machining process is smoother.
Go up and be provided with between locating piece 2 and the lower locating piece 3 and compress tightly fixed subassembly 5 fixed with last locating piece 2, as shown in fig. 3, fixed subassembly 5 includes connecting bolt 51 and joint piece 52, and the one end of connecting bolt 51 articulates there is engaging lug 53, and engaging lug 53 rigid coupling is on the lateral wall of locating piece 3 down, and the other end of connecting bolt 51 is equipped with the external screw thread, joint piece 52 and connecting bolt 51 threaded connection, and joint piece 52 is the hexagon nut of optionally. The fixing elements 5 are arranged in four groups in the embodiment and are uniformly distributed on the periphery of the lower positioning block 3. Go up the horizontal outside extension of upper end of locating piece 2 and be formed with connecting flange 23, set up on connecting flange 23 with the joint groove 24 of connecting bolt 51 diameter looks adaptation, it is corresponding, vertically set up curved groove 33 of stepping down on the lateral wall of lower locating piece 3 and last locating piece 2, make connecting bolt 51 can be vertical rotate to in the joint groove 24, with the cooperation of connecting flange 23 joint.
When the gear shaft 1 is clamped, the gear shaft 1 is firstly placed on the lower positioning block 3, the gear 12 of the gear shaft 1 is meshed with the positioning teeth 4 in the limiting cavity 32, then the upper positioning block 2 is buckled on the lower positioning block 3, the gear shaft 1 is clamped between the lower positioning block and the lower positioning block, then the clamping block 52 is driven to rotate towards the opening of the clamping groove 24 by taking the hinging point of the connecting lug 53 and the connecting bolt 51 as a fulcrum, when the connecting bolt 51 is in a vertical state, the clamping block 52 is just positioned above the connecting flange 23, and then the clamping block 52 is rotated to be tightly pressed on the connecting flange 23, so that one corner of the upper positioning block 2 is fixed; and then sequentially driving other three clamping blocks 52 to be clamped with the upper positioning block 2, finally enabling the upper positioning block 2 to be stably fixed on the lower positioning block 3, limiting in the radial direction and the axial direction of the gear shaft 1, preventing the gear shaft 1 from rotating, ensuring the stability of clamping the gear shaft 1, and improving the precision of the gear shaft 1 in processing the key groove 13 and the straight hole 14.
As shown in fig. 2, in order to make the fixing process of the upper positioning block 2 and the lower positioning block 3 smoother, the vertical rigid coupling of the lower end of the upper positioning block 2 has a connecting rod 25 with a circular truncated cone shape, the small end of the connecting rod 25 is arranged downwards, correspondingly, a connecting hole 34 matched with the connecting rod 25 is formed in the upper end of the lower positioning block 3, the upper positioning block 2 is buckled on the lower positioning block 3, the connecting rod 25 is firstly inserted into the connecting hole 34, the guiding effect is achieved, after the connecting rod 25 is completely inserted into the connecting hole 34, the upper positioning block 2 and the lower positioning block 3 are pre-fixed in a matching manner, and the upper positioning block 2 and the lower positioning block 3 are prevented from being deviated in the fixing process.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (8)
1. The utility model provides a gear shaft processing location frock which characterized in that: the positioning device comprises an upper positioning block (2) and a lower positioning block (3), wherein a first positioning groove (21) penetrates through the side end of the upper positioning block (2), and an accommodating cavity (22) is formed in the end part, located on the first positioning groove (21), of the upper positioning block (2); a second positioning groove (31) penetrates through the side end of the lower positioning block (3), and a limiting cavity (32) is arranged on the lower positioning block (3) and between the second positioning grooves (31); the clamping device is characterized in that positioning teeth (4) are arranged in the containing cavity (22) and the limiting cavity (32), the upper positioning block (2) is pressed against the lower positioning block (3) to form a closed clamping opening through the first positioning groove (21) and the second positioning groove (31), the containing cavity (22) is located above the limiting cavity (32), and a fixing component (5) for pressing and fixing the upper positioning block (2) is arranged between the upper positioning block (2) and the lower positioning block (3).
2. The gear shaft machining positioning tool according to claim 1, characterized in that: the section of the positioning tooth (4) is trapezoidal.
3. The gear shaft machining positioning tool according to claim 1, characterized in that: the first positioning groove (21) and the second positioning groove (31) are arc-shaped grooves, the containing cavity (22) and the limiting cavity (32) are both semicircular, the first positioning groove (21) and the containing cavity (22) are coaxial, and the second positioning groove (31) and the limiting cavity (32) are coaxial; the positioning teeth (4) are circumferentially distributed in the accommodating cavity (22) and the limiting cavity (32).
4. The gear shaft machining positioning tool according to claim 1, characterized in that: the shapes of the upper positioning block (2) and the lower positioning block (3) are rectangular, and the length of the upper positioning block (2) is smaller than that of the lower positioning block (3).
5. The gear shaft machining positioning tool according to claim 1, characterized in that: go up locating piece (2) and be equipped with the perpendicular rigid coupling in one side of first constant head tank (21) and have connecting rod (25), connecting hole (34) have been seted up to one side that lower locating piece (3) were equipped with second constant head tank (31), connecting rod (25) and connecting hole (34) are pegged graft and are cooperated.
6. The gear shaft machining positioning tool according to claim 5, characterized in that: the connecting rod (25) is in a round table shape, and the connecting hole (34) is matched with the connecting rod (25).
7. The gear shaft machining positioning tool according to claim 1, characterized in that: fixed subassembly (5) are including articulated joint bolt (51) and the joint piece (52) of threaded connection on connecting bolt (51) free end on locating piece (3) lateral wall down, go up the joint groove (24) that are equipped with on the outer edge of locating piece (2) and connect bolt (51) adaptation.
8. The gear shaft machining positioning tool according to claim 7, characterized in that: the arc-shaped abdicating groove (33) is formed in the side wall of the lower positioning block (3), the upper end of the upper positioning block (2) is provided with an annular connecting flange (23), and the clamping groove (24) is formed in the connecting flange (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910059155.5A CN109604743B (en) | 2019-01-22 | 2019-01-22 | Gear shaft processing location frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910059155.5A CN109604743B (en) | 2019-01-22 | 2019-01-22 | Gear shaft processing location frock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109604743A CN109604743A (en) | 2019-04-12 |
| CN109604743B true CN109604743B (en) | 2020-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910059155.5A Active CN109604743B (en) | 2019-01-22 | 2019-01-22 | Gear shaft processing location frock |
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| Country | Link |
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| CN (1) | CN109604743B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111730377B (en) * | 2020-07-02 | 2021-07-09 | 浙江三欢齿轮有限公司 | Clamp for gear shaft machining |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1808267A1 (en) * | 2006-01-17 | 2007-07-18 | EWS Korea Co., Ltd. | Tool turret |
| KR100835458B1 (en) * | 2007-05-30 | 2008-06-04 | 주식회사 디아이씨 | Pressing tool for gear bearing |
| CN101607326A (en) * | 2009-06-29 | 2009-12-23 | 浙江通力重型齿轮股份有限公司 | The positioner that is used for processing gear shaft |
| CN102962503A (en) * | 2012-12-17 | 2013-03-13 | 重庆齿轮箱有限责任公司 | Machining method for key grooves in pair of gear shafts with engaged herringbone teeth |
| CN203003522U (en) * | 2012-12-19 | 2013-06-19 | 昆山勇翔精密机械有限公司 | Gear shaft milling groove clamp |
| CN203649952U (en) * | 2013-12-19 | 2014-06-18 | 常州天山重工机械有限公司 | Tooth aligning tool of gear shaft keyway |
-
2019
- 2019-01-22 CN CN201910059155.5A patent/CN109604743B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1808267A1 (en) * | 2006-01-17 | 2007-07-18 | EWS Korea Co., Ltd. | Tool turret |
| KR100835458B1 (en) * | 2007-05-30 | 2008-06-04 | 주식회사 디아이씨 | Pressing tool for gear bearing |
| CN101607326A (en) * | 2009-06-29 | 2009-12-23 | 浙江通力重型齿轮股份有限公司 | The positioner that is used for processing gear shaft |
| CN102962503A (en) * | 2012-12-17 | 2013-03-13 | 重庆齿轮箱有限责任公司 | Machining method for key grooves in pair of gear shafts with engaged herringbone teeth |
| CN203003522U (en) * | 2012-12-19 | 2013-06-19 | 昆山勇翔精密机械有限公司 | Gear shaft milling groove clamp |
| CN203649952U (en) * | 2013-12-19 | 2014-06-18 | 常州天山重工机械有限公司 | Tooth aligning tool of gear shaft keyway |
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| Publication number | Publication date |
|---|---|
| CN109604743A (en) | 2019-04-12 |
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