CN216462265U - Special high-precision small-modulus gear shaft part gear shaping machining clamp - Google Patents

Special high-precision small-modulus gear shaft part gear shaping machining clamp Download PDF

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Publication number
CN216462265U
CN216462265U CN202122281976.9U CN202122281976U CN216462265U CN 216462265 U CN216462265 U CN 216462265U CN 202122281976 U CN202122281976 U CN 202122281976U CN 216462265 U CN216462265 U CN 216462265U
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China
Prior art keywords
gear
main shaft
positioning
shaft
positioning main
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Application number
CN202122281976.9U
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Chinese (zh)
Inventor
左殿阁
王彦军
刘傲东
李永利
王英合
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AECC Harbin Dongan Engine Co Ltd
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AECC Harbin Dongan Engine Co Ltd
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Priority to CN202122281976.9U priority Critical patent/CN216462265U/en
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Abstract

The utility model discloses a special high-precision small-modulus gear shaft part gear shaping processing clamp which comprises a threaded pressing plate and a positioning main shaft, wherein the threaded pressing plate is fixedly connected with the positioning main shaft; the upper end of the positioning main shaft is arranged at the bottom of the threaded pressing plate, the positioning main shaft is provided with a central hole, and an installation groove is formed in the position, around the central hole, of the upper end of the positioning main shaft; a part hole is formed in the threaded pressing plate, and the gear shaft penetrates through the part hole and is installed through the installation groove; the outer wall of the positioning main shaft is provided with a circle of fixed spigot, and the positioning main shaft is arranged on the upper part of a fixed base through the fixed spigot. The utility model can reduce the processing and aligning times, improve the qualification rate of parts, perform gear shaping processing on a class of gear shafts, realize the gear shaping processing and use of a set of clamp and multiple gear shafts, improve the processing efficiency and reduce the processing cost.

Description

Special high-precision small-modulus gear shaft part gear shaping machining clamp
Technical Field
The utility model relates to the field of machining, in particular to a special high-precision clamp for gear shaping of small-modulus gear shaft parts.
Background
In the existing small-module gear shaft gear shaping processing, firstly, the gear shaft parts have the structural characteristics that the gear processing can only select gear shaping processing, the relative size of the gear shaft parts for the electric mechanism is small, the general shaft diameter is within the range of 15-20mm, generally, the gear processing precision is higher, the allowable tolerance range is small, and the gear shaft processing qualified rate is low; secondly, the gear shaping machining clamp is not strong in universality, special clamps which correspond to the gear shaping machining clamp one by one need to be designed, the replacing time is long, and due to the fact that the machining precision of the gear shaft is high, the gear shaft needs to be aligned one by one after each clamping, machining efficiency is low, and the gear shaft type part batch production machining is not facilitated.
Disclosure of Invention
The utility model aims to provide a special fixture for gear shaping of high-precision small-module gear shaft parts, which is used for realizing efficient gear shaping of the high-precision small-module gear shaft parts.
In order to realize the task, the utility model adopts the following technical scheme:
a high-precision special fixture for gear shaping processing of small-modulus gear shaft parts comprises a threaded pressing plate and a positioning main shaft;
the upper end of the positioning main shaft is arranged at the bottom of the threaded pressing plate, the positioning main shaft is provided with a central hole, and an installation groove is formed in the position, around the central hole, of the upper end of the positioning main shaft; the threaded pressing plate is provided with a part hole, the positioning surface on the gear shaft is installed through the installation groove, and the rest part of the gear shaft penetrates through the part hole;
the outer wall of the positioning main shaft is provided with a circle of fixed spigot, and the positioning main shaft is arranged on the upper part of a fixed base through the fixed spigot.
Furthermore, a thread groove is formed in the bottom of the threaded pressing plate, and the positioning main shaft and the threaded pressing plate are installed through thread matching.
Furthermore, a through hole is formed in the fixed base, and the lower end of the positioning main shaft is inserted into the through hole; the fixed base is arranged on the gear shaping machine through a pressure plate.
Furthermore, a screw hole and a pin hole are formed in the positioning main shaft, and the positioning main shaft is positioned and fastened through a connecting screw and a positioning pin.
Furthermore, the side surface of the threaded pressing plate is provided with an anti-loosening jackscrew which can be screwed into the threaded groove to fasten the positioning spindle.
Furthermore, the part hole is funnel-shaped, and after the gear shaft is installed, the pointer of the dial indicator can be inserted into the positioning surface of the gear shaft through the funnel-shaped part hole to align the gear shaft.
Furthermore, the mounting groove is a circular plane groove, the mounting groove is parallel to the bottom surface of the fixed base, and the parallelism error is within 0.005 mm.
Compared with the prior art, the utility model has the following technical characteristics:
1. the utility model realizes the gear shaping processing of high-precision small-module gear shaft parts, thereby avoiding the arrangement of a set of clamp for each type of gear shaft gear shaping processing and saving a large amount of gear shaft processing time.
2. The positioning main shaft designed by the utility model is replaceable, and can be used for processing gear shaft gear shaping teeth with different sizes on the premise of not replacing the fixed base, so that a set of clamp can be used for processing various gear shafts.
3. The utility model adopts a fine thread compression structure, has high positioning precision, is convenient for clamping and disassembling the gear shaft, reduces the time for changing the clamping of the gear shaft, and facilitates the shaping and processing of gear shaping by connecting the positioning main shaft and the fixed base through bolts and positioning pins.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
The reference numbers in the figures illustrate: 1 threaded pressing plate, 2 connecting screws, 3 positioning spindles, 4 fixing bases, 5 positioning pins, 6 gear shafts, 7 center holes, 8 mounting grooves, 9 part holes and 10 through holes.
Detailed Description
The utility model provides a special high-precision clamp for gear shaping of small-modulus gear shaft parts, which can reduce the number of times of processing and alignment, improve the qualification rate of a gear shaft 6, perform gear shaping on one type of gear shaft 6, realize the use of one set of clamp for gear shaping of multiple types of gear shafts 6, improve the processing efficiency and reduce the processing cost.
Referring to fig. 1, the special fixture for gear shaping of high-precision small-modulus gear shaft parts comprises a threaded pressing plate 1, a connecting screw 2, a positioning main shaft 3, a fixing base 4 and a positioning pin 5, wherein:
the upper end of the positioning main shaft 3 is arranged at the bottom of the threaded pressing plate 1, a threaded groove is formed in the bottom of the threaded pressing plate 1, and the positioning main shaft 3 and the threaded pressing plate 1 are arranged through threaded matching; the positioning main shaft 3 is provided with a central hole 7 so as to facilitate the installation of the gear shaft 6; the upper end of the positioning main shaft 3 is provided with a mounting groove 8 around the central hole 7; a part hole 9 is formed in the threaded pressing plate 1, the positioning surface on the gear shaft 6 is installed through the installation groove 8, and the rest part of the gear shaft 6 penetrates through the part hole 9;
a circle of fixed spigot is arranged on the outer wall of the positioning main shaft 3, the positioning main shaft 3 is arranged on the upper part of the fixed base 4 through the fixed spigot, and positioning and fastening are carried out through the connecting screw 2 and the positioning pin 5; a through hole 10 is formed in the fixed base 4, and the lower end of the positioning main shaft 3 is inserted into the through hole 10; the fixed base 4 is arranged on the gear shaping machine through a pressure plate.
In this scheme, design into the fine thread internal thread in the thread groove on the screw clamp plate 1, fine thread precision is high, compresses tightly the gear shaft 6 to location main shaft 3 through the screw, and location main shaft 3 is connected through connecting screw 2, position pin 5 and is fixed to unable adjustment base 4 on, unable adjustment base 4 is connected with the gear shaping machine through four bolts.
The side surface of the threaded pressing plate 1 is provided with an anti-loosening jackscrew which can be screwed into the threaded groove to fasten the positioning spindle 3. Under the condition of ensuring the strength of the threaded pressing plate 1, the size design of the part hole 9 is enlarged, so that the alignment is convenient; in the scheme, the part hole 9 is of a funnel-shaped structure, and after the gear shaft 6 is installed, a pointer of the dial indicator can be inserted into a positioning surface of the gear shaft 6 through the funnel-shaped part hole 9; the design of the structure of the scheme can ensure the structural strength on one hand and is convenient for aligning the gear shaft 6 through the dial indicator on the other hand; after the alignment is finished, the gear shaft 6 is subjected to gear shaping processing by using a gear shaping machine.
The positioning main shaft 3 is provided with a high-precision mounting groove 8, the mounting groove 8 is a circular plane groove, and the size of the mounting groove 8 can be adaptively adjusted according to the size of the gear shaft 6; the mounting groove 8 is parallel to the bottom surface of the fixed base 4, and the parallelism error is within 0.005 mm.
Example (b):
in the embodiment, the special clamp combines the structural characteristics of the gear shaft and the processing requirements of the gear shaping, the diameter of the gear shaping shaft is within the range of 15-20mm, generally, the gear shaping shaft is above 7-level precision, the processing precision of the gear is higher, and the allowable tolerance range is small. In this embodiment, unable adjustment base bottom surface plane degree keeps within 0.003mm, and is connected with the gear shaping machine through four bolts, the clamping of the anchor clamps of being convenient for, unable adjustment base is connected convenient and fast with the gear shaping machine, and the cooperation precision is reliable, reduces anchor clamps alignment number of times, improves machining efficiency.
The location main shaft be interchangeable structure, location main shaft and unable adjustment base joint dimension be fixed dimension, only need design multiple mounting groove size can realize the processing to different high accuracy gear shafts, realize one set of multiple part of frock and use, avoid the gear shaft to relapse clamping alignment, improve machining efficiency.
The positioning main shaft and the fixed base are of an embedded connection structure, connection rigidity and strength are guaranteed, high-precision connection is conducted through the cooperation of the connecting screw and the positioning pin, connection precision between the positioning main shaft and the fixed base is guaranteed to be within 0.005mm, the use precision of the clamp is high, and the requirement for machining precision of small-modulus gear shaft-level teeth is guaranteed.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equally replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application, and are intended to be included within the scope of the present application.

Claims (7)

1. A special high-precision small-modulus gear shaft part gear shaping processing clamp is characterized by comprising a threaded pressing plate (1) and a positioning main shaft (3);
the upper end of the positioning main shaft (3) is arranged at the bottom of the threaded pressing plate (1), the positioning main shaft (3) is provided with a central hole (7), and the upper end of the positioning main shaft (3) is positioned around the central hole (7) and provided with an installation groove (8); a part hole (9) is formed in the threaded pressing plate (1), a positioning surface on the gear shaft (6) is installed through the installation groove (8), and the rest part of the gear shaft (6) penetrates through the part hole (9);
a circle of fixed spigot is arranged on the outer wall of the positioning main shaft (3), and the positioning main shaft (3) is arranged on the upper part of a fixed base (4) through the fixed spigot.
2. The special fixture for gear shaping of the high-precision small-modulus gear shaft parts according to claim 1, wherein a thread groove is formed in the bottom of the threaded pressing plate (1), and the positioning spindle (3) and the threaded pressing plate (1) are mounted through thread fit.
3. The special gear shaping processing fixture for the high-precision small-modulus gear shaft parts according to claim 1, wherein a through hole (10) is formed in the fixed base (4), and the lower end of the positioning spindle (3) is inserted into the through hole (10); the fixed base (4) is arranged on the gear shaping machine through a pressure plate.
4. The special gear shaping processing fixture for the high-precision small-modulus gear shaft parts according to claim 1, wherein a screw hole and a pin hole are formed in the positioning main shaft (3), and the positioning main shaft (3) is positioned and fastened through a connecting screw (2) and a positioning pin (5).
5. The special fixture for gear shaping of high-precision small-modulus gear shafts and parts according to claim 1, wherein a locking jackscrew is mounted on the side surface of the threaded pressure plate (1) and can be screwed into a threaded groove to fasten the positioning spindle (3).
6. The special fixture for gear shaping of high-precision small-modulus gear shafts and parts according to claim 1, wherein the part hole (9) is funnel-shaped, and after the gear shaft (6) is installed, a pointer of a dial indicator can be inserted into the positioning surface of the gear shaft (6) through the funnel-shaped part hole (9) to align the gear shaft (6).
7. The special gear shaping fixture for gear shafts and parts with high precision and small modulus according to claim 1, wherein the mounting groove (8) is a circular plane groove, the mounting groove (8) is parallel to the bottom surface of the fixed base (4), and the parallelism error is within 0.005 mm.
CN202122281976.9U 2021-09-18 2021-09-18 Special high-precision small-modulus gear shaft part gear shaping machining clamp Active CN216462265U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122281976.9U CN216462265U (en) 2021-09-18 2021-09-18 Special high-precision small-modulus gear shaft part gear shaping machining clamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122281976.9U CN216462265U (en) 2021-09-18 2021-09-18 Special high-precision small-modulus gear shaft part gear shaping machining clamp

Publications (1)

Publication Number Publication Date
CN216462265U true CN216462265U (en) 2022-05-10

Family

ID=81435866

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122281976.9U Active CN216462265U (en) 2021-09-18 2021-09-18 Special high-precision small-modulus gear shaft part gear shaping machining clamp

Country Status (1)

Country Link
CN (1) CN216462265U (en)

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