CN219131010U

CN219131010U - Gear conical surface grinding fixture

Info

Publication number: CN219131010U
Application number: CN202223594006.5U
Authority: CN
Inventors: 陈继红
Original assignee: Qijiang Gear Transmission Co Ltd
Current assignee: Qijiang Gear Transmission Co Ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-06
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to the field of gear machining and discloses a gear conical surface grinding clamp which comprises a pressing sleeve, a conical tooth sleeve, a pad disc and a mandrel, wherein the pad disc is fixed at the lower end of the mandrel and used for supporting a gear ring, a first through hole matched with the mandrel is formed in the center of the conical tooth sleeve, conical teeth capable of being meshed with inner teeth of the gear ring are arranged around the conical tooth sleeve, and the pressing sleeve is sleeved with the upper end of the mandrel and presses the conical tooth sleeve. To provide a jig with high accuracy and convenient use.

Description

Gear conical surface grinding fixture

Technical Field

The utility model relates to the field of gear machining, in particular to a gear conical surface grinding clamp.

Background

In gear machining, it is often necessary to grind the outer conical surface of the ring gear, and the grinding elements are often used in the gearbox of a motor vehicle. The traditional conical surface grinding clamp generally adopts an expansion sleeve type structure, but the conical surface of the expansion sleeve and the tooth part of the gear are high in machining precision and large in deformation, the centering inaccuracy is easily caused after one end of the expansion sleeve is used, the existing conical surface grinding clamp is complex in structure, the assembly process is complex, errors are easily generated in the assembly process, the positioning installation and finish machining of the gear are difficult to realize the design precision, the auxiliary working time is long, and the manufacturing cost is high. Therefore, it is necessary to provide a jig for gear cone grinding which has high centering accuracy and is easy to use.

Disclosure of Invention

The utility model aims to provide a gear grinding conical surface clamp so as to provide a clamp with high precision and convenient use.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the gear grinding conical surface clamp comprises a pressing sleeve, a conical tooth sleeve, a pad disc and a mandrel, wherein the pad disc is fixed at the lower end of the mandrel and used for supporting a gear ring, a first through hole matched with the mandrel is formed in the center of the conical tooth sleeve, conical teeth capable of being meshed with inner teeth of the gear ring are arranged around the conical tooth sleeve, and the pressing sleeve is sleeved with the upper end of the mandrel and presses the conical tooth sleeve.

The beneficial effect of this scheme is: simple structure, convenient operation and good centering effect. When the device is used, firstly, the conical tooth sleeve is meshed with the inner teeth of the gear ring, the gear ring is centered, then the conical tooth sleeve and the gear ring are placed on the pad disc together, the first through hole penetrates through the mandrel, the conical tooth sleeve is in clearance fit with the mandrel, then the pressing sleeve covers the mandrel, and the pressing sleeve applies pressure to the conical tooth sleeve. The technical scheme has the advantages of compact structure, small overall size, small occupied space, simple operation steps and easy assembly and disassembly of the bevel gear; the conical teeth of the conical tooth sleeve are used for radially positioning the gear ring, and the first through hole is used for axially positioning the tooth sleeve, so that the installation effect of the gear ring can be well met, the grinding quality is improved, and the gear ring is subjected to finish machining.

Preferably, as an improvement, the device further comprises a supporting sleeve, wherein the supporting sleeve is fixedly connected with the mandrel and can support the saucer, the supporting sleeve is fixedly connected with the saucer, a plurality of blind grooves are formed in the upper surface of the saucer, and the blind grooves are circumferentially and uniformly distributed on the saucer. The support sleeve is arranged to ensure the working stability of the saucer, and is fixedly connected with the saucer and supports the saucer, so that the saucer is not easy to shake due to stress and easy to incline during working; the blind groove is arranged to prevent burrs and overstock on the end face of the product, and influences the positioning of the end face of the gear ring, so that the positioning is inaccurate.

Preferably, as an improvement, the device further comprises a base, and the base is in threaded connection with the mandrel. Through setting up base and mandrel cooperation and being connected, can be through guaranteeing the perpendicular installation of base and then guarantee the straightness that hangs down of mandrel, and then guarantee the machining effect of ring gear conical surface.

Preferably, as an improvement, the rolling device further comprises two balls, wherein one ball is arranged at the center of the end face of the pressing sleeve, the other ball is arranged at the center of the end face of the mandrel, and grooves for accommodating the balls are formed in the center of the end face of the pressing sleeve and the center of the end face of the mandrel.

Through the arrangement, whether the installation position is accurately placed or not can be confirmed by measuring the distance between the ball and the end face of the gear ring, and the gear ring placement accuracy is further guaranteed.

Preferably, as a modification, the maximum clearance between the cone sleeve and the press sleeve and the spindle is 0.01mm. Through the arrangement, the matching installation precision among the conical tooth sleeve, the pressing sleeve and the mandrel can be improved, and the follow-up machining precision and the centrality of the gear ring can be conveniently improved.

Preferably, as an improvement, a plurality of second through holes are formed in the upper surface of the conical tooth sleeve, and the second through holes are uniformly distributed in the circumferential direction. Through the arrangement, on one hand, a processing person can repeatedly conduct sleeving and alignment in the processing process, and the quality of the conical tooth sleeve is reduced through the second through holes, so that the physical consumption of the processing person in repeated processing is reduced; on the other hand, set up the holistic deflection when the awl tooth cover expend with heat and contract with cold can alleviate, promote awl tooth cover and ring gear complex accuracy.

Drawings

Fig. 1 is a cross-sectional view of an embodiment of the present utility model.

Detailed Description

The following is a further detailed description of the embodiments:

reference numerals in the drawings of the specification include: the device comprises a pressing sleeve 1, a bevel gear sleeve 2, a pad disc 3, a supporting sleeve 4, a mandrel 5, a first through hole 6, bevel gears 7, balls 8, a second through hole 9 and a blind groove 10.

Examples

The embodiment is basically as shown in fig. 1, the gear conical surface grinding clamp as shown in fig. 1 comprises a pressing sleeve 1, a conical tooth sleeve 2, a cushion disc 3, a supporting sleeve 4, a mandrel 5 and a base (not shown in the figure), wherein the cushion disc 3 is fixed at the lower end of the mandrel 5 and is used for supporting a gear ring, a first groove is formed in the center of the cushion disc 3, a first through hole 6 matched with the mandrel 5 is formed in the center of the conical tooth sleeve 2, conical teeth 7 capable of being meshed with the inner teeth of the gear ring are arranged around the conical tooth sleeve 2, and the pressing sleeve 1 is sleeved with the upper end of the mandrel 5 and presses the conical tooth sleeve 2. The base in this embodiment is in threaded connection with the bottom of the mandrel 5, so that the perpendicularity of the mandrel 5 can be guaranteed by guaranteeing the perpendicular installation of the base, and the machining effect of the conical surface of the gear ring is guaranteed.

In this embodiment, support sleeve 4 and mandrel 5 fixed connection and can support the saucer 3, support sleeve 4 and saucer 3 are connected through the bolt, and four blind grooves 10 are opened to saucer 3 upper surface, and blind grooves 10 circumference evenly distributed is on saucer 3, can prevent that the ring gear terminal surface from having the burr and leading to the gear terminal surface to fix a position inaccurately.

As shown in fig. 1, the pressing sleeve further comprises two balls 8, one ball 8 is installed at the center of the upper surface of the pressing sleeve 1, the other ball 8 is installed at the bottom surface of the mandrel 5, and grooves for accommodating the balls 8 are formed in the upper surface of the pressing sleeve 1 and the bottom surface of the mandrel 5. The maximum fit clearance between the conical tooth sleeve 2 and the press sleeve 1 and the spindle 5 in this embodiment is 0.01mm. Four second through holes 9 are formed in the upper surface of the conical tooth sleeve 2, and the second through holes 9 are uniformly distributed in the circumferential direction. On one hand, the processing staff can repeatedly conduct sleeving and alignment in the processing process, and the weight of the bevel gear sleeve 2 is reduced by arranging the second through holes 9, so that the physical consumption of the processing staff in repeated processing is reduced; on the other hand, the second through holes 9 are formed, so that the integral deformation of the conical tooth sleeve 2 during thermal expansion and cold contraction can be reduced, and the precision of the conical tooth sleeve 2 and the gear ring in cooperation is improved.

The specific implementation process is as follows:

when the device is used, firstly, the conical tooth sleeve 2 is meshed with the inner teeth of the gear ring, the gear ring is centered, then the conical tooth sleeve 2 and the gear ring are placed on the pad 3 together, the first through hole 6 penetrates through the mandrel 5, the conical tooth sleeve 2 is in clearance fit with the mandrel 5, then the pressing sleeve 1 is covered on the mandrel 5, and the pressing sleeve 1 applies pressure to the conical tooth sleeve 2. The technical scheme has the advantages of compact structure, small overall size, small occupied space, simple operation steps and easy gear assembly and disassembly; the conical teeth 7 of the conical tooth sleeve 2 are used for radial positioning of the gear ring, and the first through hole 6 is used for axial positioning of the tooth sleeve, so that the installation effect of the gear ring can be well met, the grinding quality is improved, and the gear ring is subjected to finish machining.

The foregoing is merely exemplary of the present utility model, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and these should also be regarded as the protection scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims

1. Gear grinding conical surface anchor clamps, its characterized in that: the gear ring pressing device comprises a pressing sleeve, a conical tooth sleeve, a pad disc and a mandrel, wherein the pad disc is fixed at the lower end of the mandrel and used for supporting a gear ring, a first through hole matched with the mandrel is formed in the center of the conical tooth sleeve, conical teeth capable of being meshed with inner teeth of the gear ring are arranged around the conical tooth sleeve, and the pressing sleeve is sleeved with the upper end of the mandrel and presses the conical tooth sleeve.

2. The gear burr jig of claim 1, wherein: the support sleeve is fixedly connected with the mandrel and can support the saucer, the support sleeve is fixedly connected with the saucer, a plurality of blind grooves are formed in the upper surface of the saucer, and the blind grooves are circumferentially and uniformly distributed on the saucer.

3. The gear burr jig of claim 2, wherein: the device also comprises a base which is in threaded connection with the mandrel.

4. A gear cone clamp according to claim 3, wherein: the rolling device further comprises two balls, one ball is arranged at the center of the end face of the pressing sleeve, the other ball is arranged at the center of the end face of the mandrel, and grooves for accommodating the balls are formed in the center of the end face of the pressing sleeve and the center of the end face of the mandrel.

5. The gear cone clamp of claim 4, wherein: the maximum clearance between the conical tooth sleeve and the press sleeve and the mandrel is 0.01mm.

6. The gear burr jig of claim 5, wherein: the upper surface of the conical tooth sleeve is provided with a plurality of second through holes which are uniformly distributed in the circumferential direction.