CN211516723U - Quick drilling auxiliary tool for bevel gear center hole machining - Google Patents
Quick drilling auxiliary tool for bevel gear center hole machining Download PDFInfo
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- CN211516723U CN211516723U CN201922117844.5U CN201922117844U CN211516723U CN 211516723 U CN211516723 U CN 211516723U CN 201922117844 U CN201922117844 U CN 201922117844U CN 211516723 U CN211516723 U CN 211516723U
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- movable pressing
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- shaped positioning
- bevel gear
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Abstract
The utility model relates to a quick drilling auxiliary tool for bevel gear center hole processing, which comprises a reference seat and a movable pressing block; the reference base is composed of a circular reference chassis and a plurality of fan-shaped positioning blocks, the fan-shaped positioning blocks are uniformly distributed along the circumferential direction and are coaxially arranged with the reference chassis; gear placing spaces are formed among the fan-shaped positioning blocks, the inner side surface of each fan-shaped block is an inclined surface, and the inner side of each fan-shaped positioning block is provided with a tooth-shaped positioning groove; the movable pressing block is arranged above the reference chassis, a central mounting hole is formed in the movable pressing block, a drill bit guide sleeve is arranged in the movable pressing block, one end of the movable pressing block is rotatably connected with the reference chassis through a connecting screw, and an arc-shaped open slot is formed in the other end of the movable pressing block; and a connecting screw rod is arranged on the reference chassis or one of the fan-shaped positioning blocks, and a locking nut is arranged on the connecting screw rod. After the center of the reference seat is aligned once, the bevel gear is placed at the corresponding position on the tool, so that the center is quickly aligned, and the machining efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of bevel gear processing, a bevel gear centre bore processing is with quick drilling auxiliary fixtures is related to.
Background
The differential planetary gear adopted on the automobile is a bevel gear, and the requirements of the gear on performance parameters of various aspects of the tooth profile and the coaxiality of the tooth profile and the central hole are higher. After the tooth profile is machined, the tooth profile is used as a positioning reference, and a central hole is machined to meet the coaxiality requirement. At present, when a center hole is machined, manual alignment is usually adopted, the alignment time is long, and alignment needs to be carried out once when one gear is machined, so that the machining efficiency is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's weak point, provide a bevel gear centre bore processing of can realize quick alignment in center, improve machining efficiency and processingquality is with quick drilling frock.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a bevel gear centre bore processing is with quick drilling auxiliary fixtures which characterized in that: comprises a reference seat and a movable pressing block which can be quickly disassembled;
the reference base is composed of a circular reference chassis and a plurality of fan-shaped positioning blocks fixed at the upper end of the reference chassis, a chip removal hole is formed in the center of the reference chassis, and the fan-shaped positioning blocks are uniformly distributed in the circumferential direction and are coaxially arranged with the reference chassis; a gear placing space is formed among the plurality of fan-shaped positioning blocks, the inner side surface of each fan-shaped block is an inclined surface with the same taper as the tooth socket of the bevel gear to be processed, a tooth-shaped positioning groove is arranged on the inner side of each fan-shaped positioning block, and the tooth-shaped positioning groove is matched with the tooth part of the bevel gear to be processed in shape;
the movable pressing block is arranged above the reference chassis, a central mounting hole is formed in the movable pressing block, a drill bit guide sleeve is arranged in the central mounting hole, one end of the movable pressing block is rotatably connected with the reference chassis through a connecting screw, and an arc-shaped open slot taking the central mounting hole as the center is formed in the other end of the movable pressing block; a connecting screw rod is arranged on the reference chassis or one of the fan-shaped positioning blocks, a locking nut is arranged on the connecting screw rod, and an included angle of 180 degrees is formed between the central connecting line of the connecting screw rod and the reference chassis and the central connecting line of the connecting screw rod and the reference chassis;
the movable pressing block rotates to a pressing working position, the movable pressing block is located right above the gear placing space, the axis of the drill bit guide sleeve is overlapped with the axis of the reference chassis, the connecting screw rod is clamped in an open slot on the movable pressing block, and the gear to be machined in the gear placing space is pressed tightly by screwing the locking nut.
Furthermore, the locking nut is a butterfly nut.
Furthermore, a plurality of screw holes for fixing are uniformly distributed in the circumferential direction on the reference chassis.
Furthermore, the drill guide sleeve is arranged in the central mounting hole in a clearance fit mode, jackscrew holes are symmetrically formed in two sides of the movable pressing block, which are positioned at the position of the central mounting hole, jackscrews are arranged in the jackscrew holes in the two sides, and the jackscrews on the two sides are in compression contact with the outer peripheral surface of the drill guide sleeve, so that the drill guide sleeve is detachably fixed in the central mounting hole.
The utility model has the advantages and positive effect:
the inner side surfaces of the plurality of fan-shaped positioning blocks are in surface contact with the tooth grooves of the gears to be processed, the tooth-shaped positioning grooves arranged on the inner side surfaces are matched with teeth on the gears to be processed in an inserting mode, the gears to be processed can be quickly and accurately positioned, the centers of the gears to be processed are overlapped with the center of the reference seat, and therefore when large-batch bevel gears are processed, after the centers of the reference seats are aligned once, the positions, corresponding to the bevel gears, of the tools are placed by the bevel gears, center quick alignment is achieved automatically, alignment time is saved, and processing efficiency and processing quality are improved.
Drawings
FIG. 1 is a schematic structural view of the present invention when the movable pressing block is in the pressing position;
FIG. 2 is a schematic structural view of the present invention when the movable pressing block is in the non-pressing position;
fig. 3 is a schematic view of the construction of a bevel gear.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments, which are illustrative, not restrictive, and the scope of the invention should not be limited thereto.
A quick drilling auxiliary tool for processing a central hole of a bevel gear is disclosed, please refer to FIGS. 1-2, and the invention points are as follows: the movable pressing block pressing device comprises a reference seat 1 and a movable pressing block 3 capable of being rapidly detached, wherein the reference seat is used for positioning a gear to be machined, and the movable pressing block is matched with the reference seat to realize the pressing and fixing of the gear to be machined.
The reference base is composed of a circular reference chassis 1-1 and a plurality of fan-shaped positioning blocks 1-2 fixed at the upper end of the reference chassis, a chip removal hole 1-1-1 is formed in the center of the reference chassis, and the fan-shaped positioning blocks are uniformly distributed along the circumferential direction and are arranged coaxially with the reference chassis; gear placing spaces are formed among the fan-shaped positioning blocks, the inner side face of each fan-shaped block is an inclined face 1-2-1 with the same taper as the tooth socket 102 of the bevel gear 100 to be machined, a tooth-shaped positioning groove 1-2-2 is arranged on the inner side of each fan-shaped positioning block, and the tooth-shaped positioning groove is matched with the tooth part 101 of the bevel gear to be machined in shape.
The movable pressing block is arranged above the reference chassis, a central mounting hole is formed in the movable pressing block, a detachable drill guide sleeve 4 is arranged in the central mounting hole, one end of the movable pressing block is rotatably connected with the reference chassis through a connecting screw 2, and an arc-shaped open slot 3-1 which takes the central mounting hole as the center is formed in the other end of the movable pressing block. A connecting screw rod 5 is arranged on the reference chassis or one of the fan-shaped positioning blocks, a locking nut 6 is arranged on the connecting screw rod, and the central connecting line of the connecting screw rod and the reference chassis are arranged in an angle of 180 degrees.
The movable pressing block rotates to a pressing working position, the movable pressing block is located right above the gear placing space, the axis of the drill bit guide sleeve is overlapped with the axis of the reference chassis, the connecting screw rod is clamped in an open slot on the movable pressing block, and the gear to be machined in the gear placing space is pressed tightly by screwing the locking nut.
In the structure, the locking nut adopts the butterfly nut, can directly act on the nut, and realizes the screwing and loosening of the nut.
In the structure, the reference base is further provided with a plurality of screw holes which are uniformly distributed along the circumferential direction. The screw hole is used for penetrating and installing a screw of the fixed base, and the reference seat is fixed on the workbench.
Furthermore, the drill guide sleeve is arranged in the central mounting hole in a clearance fit mode, jackscrew holes are symmetrically formed in two sides of the movable pressing block, which are positioned at the position of the central mounting hole, jackscrews 7 are arranged in the jackscrew holes in the two sides, and the jackscrews on the two sides are in compression contact with the outer peripheral surface of the drill guide sleeve, so that the drill guide sleeve is detachably fixed in the central mounting hole. By adopting the installation mode, the drill guide sleeves with different inner hole diameters can be replaced, the processing requirements of center holes with various hole diameters are met, and the applicability of the tool is expanded.
Adopt this quick drilling auxiliary fixtures, to wait to process in the bevel gear places the space to the gear between the sector, bevel gear's the outer conical surface contacts with the medial surface of sector, the tooth that corresponds the position on the bevel gear inserts in the profile of tooth constant head tank on the fan-shaped locating piece, then adjust movable briquetting to bevel gear's top, make open slot card on the movable briquetting go into on the connecting screw, the center of drill bit uide bushing and the center coincidence of benchmark seat, then screw up lock nut down soon, make movable briquetting compress tightly on bevel gear's up end, so far accomplish bevel gear's installation location, follow-up just can carry out drilling to the cone pulley. After the drilling process is finished, the locking nut is loosened, the movable pressing block is rotated to the outside, and the processed gear can be taken down.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims, and therefore, the scope of the present invention is not limited to the disclosure of the embodiments and the accompanying drawings.
Claims (4)
1. The utility model provides a bevel gear centre bore processing is with quick drilling auxiliary fixtures which characterized in that: comprises a reference seat and a movable pressing block which can be quickly disassembled;
the reference base is composed of a circular reference chassis and a plurality of fan-shaped positioning blocks fixed at the upper end of the reference chassis, a chip removal hole is formed in the center of the reference chassis, and the fan-shaped positioning blocks are uniformly distributed in the circumferential direction and are coaxially arranged with the reference chassis; a gear placing space is formed among the plurality of fan-shaped positioning blocks, the inner side surface of each fan-shaped block is an inclined surface with the same taper as the tooth socket of the bevel gear to be processed, a tooth-shaped positioning groove is arranged on the inner side of each fan-shaped positioning block, and the tooth-shaped positioning groove is matched with the tooth part of the bevel gear to be processed in shape;
the movable pressing block is arranged above the reference chassis, a central mounting hole is formed in the movable pressing block, a drill bit guide sleeve is arranged in the central mounting hole, one end of the movable pressing block is rotatably connected with the reference chassis through a connecting screw, and an arc-shaped open slot taking the central mounting hole as the center is formed in the other end of the movable pressing block; a connecting screw rod is arranged on the reference chassis or one of the fan-shaped positioning blocks, a locking nut is arranged on the connecting screw rod, and an included angle of 180 degrees is formed between the central connecting line of the connecting screw rod and the reference chassis and the central connecting line of the connecting screw rod and the reference chassis;
the movable pressing block rotates to a pressing working position, the movable pressing block is located right above the gear placing space, the axis of the drill bit guide sleeve is overlapped with the axis of the reference chassis, the connecting screw rod is clamped in an open slot on the movable pressing block, and the gear to be machined in the gear placing space is pressed tightly by screwing the locking nut.
2. The bevel gear center hole machining rapid drilling auxiliary tool according to claim 1, characterized in that: the locking nut is a butterfly nut.
3. The bevel gear center hole machining rapid drilling auxiliary tool according to claim 1, characterized in that: the reference seat is provided with a plurality of fixing screw holes which are uniformly distributed along the circumferential direction.
4. The bevel gear center hole machining rapid drilling auxiliary tool according to claim 1, characterized in that: the drill guide sleeve is arranged in the central mounting hole in a clearance fit mode, jackscrew holes are symmetrically formed in two sides of the movable pressing block, which are positioned at the position of the central mounting hole, jackscrews are arranged in the jackscrew holes in the two sides, and the jackscrews on the two sides are in compression contact with the outer peripheral surface of the drill guide sleeve, so that the drill guide sleeve is detachably fixed in the central mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922117844.5U CN211516723U (en) | 2019-11-29 | 2019-11-29 | Quick drilling auxiliary tool for bevel gear center hole machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922117844.5U CN211516723U (en) | 2019-11-29 | 2019-11-29 | Quick drilling auxiliary tool for bevel gear center hole machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211516723U true CN211516723U (en) | 2020-09-18 |
Family
ID=72464346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922117844.5U Active CN211516723U (en) | 2019-11-29 | 2019-11-29 | Quick drilling auxiliary tool for bevel gear center hole machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211516723U (en) |
-
2019
- 2019-11-29 CN CN201922117844.5U patent/CN211516723U/en active Active
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