CN216938801U

CN216938801U - Gear shaping clamp

Info

Publication number: CN216938801U
Application number: CN202220178115.XU
Authority: CN
Inventors: 熊峰
Original assignee: Chongqing Lianhao Technology Co ltd
Current assignee: Chongqing Lianhao Technology Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-07-12
Anticipated expiration: 2032-01-21

Abstract

The utility model belongs to the technical field of gear machining tools, and particularly discloses a gear shaping clamp which comprises a connecting ring, a gear shaping base, a cone and an expansion sleeve, wherein inner holes are formed in the connecting ring, the gear shaping base, the cone and the expansion sleeve, and the gear shaping base is used for being installed on a gear shaping machine; the gear shaping base is externally provided with threads, the connecting ring is in threaded connection with the outer portion of the gear shaping base, the cone is located inside the connecting ring and is in axial fixed fit with the connecting ring, the lower end of the expansion sleeve is in fixed fit with the gear shaping base, the outer side of the upper portion of the expansion sleeve is of a circular truncated cone structure, and the inner wall of the cone is a conical surface matched with the circular truncated cone structure of the expansion sleeve. Compared with the prior art, the fixture can quickly clamp the gear product, the gear product cannot be crushed after clamping, the stability is good, and the machining precision of the gear product can be ensured.

Description

Gear shaping clamp

Technical Field

The utility model belongs to the technical field of gear machining tools, and particularly discloses a gear shaping clamp.

Background

For internal tooth gear products with disc structures, internal teeth are usually machined by gear shaping, the gear products need to be fixed in the machining process, a three-jaw positioning chuck is usually adopted to grab and fix the gear product part in the past, and then a gear shaping cutter on a gear shaping machine is used for machining the internal teeth. When the three-jaw positioning chuck clamps the gear, the clamping surface is small, so that the external part of the gear is easily crushed; the clamping area is small, so that the clamping of the gear is unstable, and the machining precision of the gear product is not ideal. In addition, the three-jaw positioning chuck has the disadvantages of long time consumption and large operation error in clamping the gear, so that the quality of the gear product is unstable, and the production efficiency is low.

Disclosure of Invention

The utility model aims to provide a gear shaping clamp to solve the problems of unsatisfactory clamping stability and low machining precision in the process of machining internal tooth shaping of a gear.

In order to achieve the purpose, the basic scheme of the utility model is as follows: a gear shaping clamp comprises a connecting ring, a gear shaping base, a cone and an expansion sleeve, wherein the connecting ring, the gear shaping base, the cone and the expansion sleeve are provided with inner holes, and the gear shaping base is used for being mounted on a gear shaping machine; the gear shaping base is externally provided with threads, the connecting ring is in threaded connection with the outer portion of the gear shaping base, the cone is located inside the connecting ring and is in axial fixed fit with the connecting ring, the lower end of the expansion sleeve is in fixed fit with the gear shaping base, the outer side of the upper portion of the expansion sleeve is of a round platform structure, and the inner wall of the cone is a conical surface matched with the round platform structure of the expansion sleeve.

The working principle of the basic scheme is as follows: when the gear product with the disc-shaped structure needs to process internal teeth, the clamp can be used for clamping. When the clamp is used, a gear product is placed in an inner hole of the expansion sleeve, the connecting ring is rotated and is in external thread connection with the gear shaping base, the connecting ring rotates to enable the connecting ring to move downwards along the axial direction of the gear shaping base, and the cone matched with the connecting ring in an axial fixing mode moves downwards along with the connecting ring, moves downwards to act on a round platform structure of the expansion sleeve, so that the inner hole of the expansion sleeve is reduced, and the outer circle of the gear product is clamped and fixed.

The beneficial effect of this basic scheme lies in:

1. when the clamp is used, the connecting sleeve only needs to be rotated, the operation is convenient and fast, the clamping process of the gear product is rapidly completed, and the machining efficiency of the inner teeth of the gear product can be improved.

2. This anchor clamps use the hole of the cover that expands to carry out the centre gripping to the outside of gear product, and the clamping area is great, makes the clamping effort evenly distributed of gear product in the outside of gear product to avoid gear product clamping process to produce the crushing wound.

3. The clamp adopts a full enveloping form to clamp a product by expansion force, so that the clamping of the gear product is very stable, and the machining precision of the gear product can be kept.

Compared with the prior art, the fixture can quickly clamp the gear product, the gear product cannot be crushed after clamping, the stability is good, and the machining precision of the gear product can be ensured.

Furthermore, the lower extreme is equipped with first step in the gear shaping base, be fixed with the positioning disk through the bolt on the first step, the positioning disk upper end is a supporting bench.

Has the advantages that: the inner hole of the expansion sleeve is usually larger than the outer diameter of a part of the gear product to be clamped, and the support table of the positioning disc can facilitate the gear product to be placed in the inner hole and ensure the position of the gear product to be determined; the first step is convenient for the positioning disc to be fixedly connected with the gear shaping base.

Furthermore, a second step is arranged on the first step inside the gear shaping base, a boss matched with the second step is arranged at the lower end of the expansion sleeve, and the boss is fixedly connected with the second step through a bolt.

Has the beneficial effects that: the lower end of the expansion sleeve is fixedly matched with the gear shaping base conveniently by the second step and the boss.

Furthermore, a pressing plate is fixed at the upper ends of the connecting ring and the cone and fixedly connected with the connecting ring through bolts.

Has the advantages that: the pressing plate is connected with the connecting ring through bolts, so that the cone and the connecting ring are matched in an axial fixed mode on one hand, and the gear product is placed conveniently on the other hand.

Furthermore, a transition plate is fixed at the lower end of the gear shaping base.

Has the advantages that: the arrangement of the transition plate facilitates the fixture to be fixed on a workbench of a gear shaping machine, so that the fixture is matched with a slotting tool to machine internal teeth of a gear product after clamping the gear product.

Further, still include the atress pole, be equipped with a plurality of jacks on the clamping ring, atress pole and jack screw-thread fit.

Has the advantages that: the through holes and the stress application rods are arranged, so that the connecting ring can rotate quickly and conveniently, and the clamping process of the gear product is quick and convenient.

Furthermore, one end of the stress application rod, which is far away from the jack, is provided with a handle, and the handle is provided with an uneven rough surface.

Has the advantages that: the handle rotates the connecting ring, and the rough surface is convenient for applying acting force to the force applying rod.

Further, the expansion sleeve is of multiple sizes.

Has the advantages that: to the gear product that the external dimension is different, can correspond the bloated cover that adopts the size to be equivalent, and then make the more convenient quilt of gear product centre gripping fixed.

Drawings

FIG. 1 is a schematic view of one embodiment of a gear shaping fixture of the present invention;

fig. 2 is a structural schematic diagram of the expansion sleeve.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the gear shaping device comprises a gear shaping base 10, a first step 11, a second step 12, an inserting hole 13, a stress application rod 14, a positioning disc 20, a supporting table 21, an expansion sleeve 30, a boss 31, a circular truncated cone structure 32, a connecting ring 40, a cone 41, a conical surface 42, a pressing plate 43, a transition plate 50, a gear product 60 and internal teeth 61.

As shown in fig. 1 and 2, the gear shaping clamp comprises a connecting ring 40, a gear shaping base 10, a cone 41, an expansion sleeve 30, a positioning disc 20 and a pressing plate 43, inner holes are formed in the middle of the connecting ring 40, the gear shaping base 10, the cone 41, the expansion sleeve 30, the positioning disc 20 and the pressing plate 43, a transition plate 50 is fixed at the lower end of the gear shaping base 10, a mounting hole is formed in the transition plate 50, a T-shaped nut can penetrate into the mounting hole, and the gear shaping base 10 is used for being mounted on a gear shaping machine. The positioning disc 20 is located in an inner hole in the lower portion of the gear shaping base 10, the cone 41 is located in an inner hole in the upper portion of the connecting ring 40, the expansion sleeve 30 is located in an inner hole in the joint of the cone 41 and the gear shaping base 10, threads are arranged on the outer portion of the gear shaping base 10, and the connecting ring 40 is in threaded connection with the outer portion of the gear shaping base 10. The cone 41 is located and is fixedly matched with the connecting ring 40 in the axial direction, the pressing plate 43 is fixed at the upper ends of the connecting ring 40 and the cone 41, and the pressing plate 43 is fixedly connected with the connecting ring 40 through bolts.

The inside lower extreme of gear shaping base 10 has set up first step 11, and the lower extreme of positioning disk 20 passes through the bolt and fixes with first step 11, and positioning disk 20 upper end is brace table 21 for place gear product 60. A second step 12 is arranged on the first step 11 in the gear shaping base 10, a boss 31 matched with the second step 12 is arranged at the lower end of the expansion sleeve 30, and the boss 31 and the second step 12 are fixedly connected through bolts; the outer side of the upper part of the expansion sleeve 30 is a circular truncated cone structure 32, and the inner wall of the cone 41 is a conical surface 42 matched with the circular truncated cone structure 32 of the expansion sleeve 30. The circular truncated cone structure 32 comprises a plurality of arc sections, and a gap exists between adjacent arc sections, so that the circular truncated cone structure 32 can be locked to clamp the gear product 60, and the circular truncated cone structure 32 part of the expansion sleeve 30 in the embodiment can also adopt a common expansion sleeve 30 structure as long as the inner diameter of the expansion sleeve is adjustable. In order to enable the clamp to clamp gear products 60 with more sizes, the expansion sleeve 30 has multiple sizes and can be replaced correspondingly according to the needs of the gear products 60.

In order to make this anchor clamps facilitate the use, this anchor clamps still include stress application pole 14, and the circumference of clamping ring has evenly set up a plurality of jacks 13, stress application pole 14 and jack 13 screw-thread fit. The end of the forcing rod 14 far away from the jack 13 is a handle which is provided with an uneven rough surface.

The specific implementation process is as follows: this anchor clamps can be fixed on the workstation of gear shaping machine, places gear product 60 during the use and to expand the hole of cover 30, and gear product 60's lower extreme can be placed on a supporting bench 21. Then, the handle of the reinforcing rod 14 is held by hand, the reinforcing rod 14 extends into the insertion hole 13, the connecting ring 40 rotates through the reinforcing rod 14, the connecting ring 40 rotates to enable the connecting ring 40 to move downwards along the axial direction of the gear shaping base 10, the cone 41 which is fixedly matched with the connecting ring 40 in the axial direction moves downwards along with the connecting ring, the cone 41 moves downwards to enable the conical surface 42 of the cone to act on the circular table structure 32 of the expansion sleeve 30, the size of an inner hole in the circular table structure 32 of the expansion sleeve 30 is reduced, and accordingly the outer circle of the gear product 60 is clamped and fixed. The internal teeth 61 of the gear product 60 are then machined.

The foregoing is merely an example of the present invention and common general knowledge in the art of designing and/or characterizing particular aspects and/or features is not described in any greater detail herein. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a gear shaping anchor clamps which characterized in that: the gear shaping machine comprises a connecting ring, a gear shaping base, a cone and an expansion sleeve, wherein the connecting ring, the gear shaping base, the cone and the expansion sleeve are provided with inner holes, and the gear shaping base is used for being installed on a gear shaping machine; the gear shaping base is externally provided with threads, the connecting ring is in threaded connection with the outer portion of the gear shaping base, the cone is located inside the connecting ring and is in axial fixed fit with the connecting ring, the lower end of the expansion sleeve is in fixed fit with the gear shaping base, the outer side of the upper portion of the expansion sleeve is of a round platform structure, and the inner wall of the cone is a conical surface matched with the round platform structure of the expansion sleeve.

2. The gear shaping clamp according to claim 1, wherein a first step is arranged at the lower end inside the gear shaping base, a positioning disc is fixed on the first step through a bolt, and a supporting table is arranged at the upper end of the positioning disc.

3. The gear shaping clamp according to claim 2, wherein a second step is arranged on the first step inside the gear shaping base, a boss matched with the second step is arranged at the lower end of the expansion sleeve, and the boss and the second step are fixedly connected through a bolt.

4. The gear shaping clamp of claim 3 wherein a pressure plate is fixed to the upper ends of the connecting ring and the cone, and the pressure plate is fixedly connected to the connecting ring through bolts.

5. The gear shaping fixture of claim 4 wherein a transition plate is secured to a lower end of the gear shaping base.

6. The gear shaping fixture of claim 5 further comprising a force bar, wherein the connecting ring is provided with a plurality of insertion holes, and the force bar is in threaded engagement with the insertion holes.

7. The gear shaping clamp of claim 6 wherein the end of the force applying rod remote from the socket is a handle, and the handle has a rugged surface.

8. The gear shaping clamp of claim 7 wherein said expansion sleeve is a plurality of sizes of expansion sleeves.