CN219131504U

CN219131504U - Milling flutes anchor clamps

Info

Publication number: CN219131504U
Application number: CN202223594034.7U
Authority: CN
Inventors: 龚姝雯; 陈杰; 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 general slot milling fixtures and discloses a slot milling fixture, which comprises a positioning disk, a positioning assembly and a sliding assembly, wherein a positioning mandrel and a cutter relieving groove are arranged on the positioning disk; the sliding component comprises a sliding block and a fixed pin, the sliding block is rotationally connected to the positioning disk, and the fixed sliding pin is connected to the sliding block, so that the problem that the universality of the existing milling groove clamp is low is solved.

Description

Milling flutes anchor clamps

Technical Field

The utility model relates to the field of general slot milling fixtures, in particular to a slot milling fixture.

Background

In order to improve the lubrication effect in the meshing transmission process, an oil groove is usually designed on the end face of a gear, the gear oil groove is processed by a milling machine at present, and the gear is required to be clamped by a clamp during processing, so that the gear is prevented from rotating and then milling.

The open slot on the toothholder, form and position tolerance requirement is either with the center of the tooth slot of the gear as the benchmark, or with the tooth top center of a tooth on the gear as the benchmark, need leave the position of installing the cylindric lock that prevents the circular motion of product and location on the milling flutes frock positioning disk, this position can be usually decided as the intersection point of product measuring stick gyration center radius and tooth slot angle to ensure the position of processing groove. Because the number of teeth of each gear product is basically different, the diameters of the inner holes of gears or the rotation centers of measuring rods of different types are also different even if the gear products are the same in number of teeth, so that the existing milling groove fixture positioning tool is basically free of generality and low in popularization.

Disclosure of Invention

The utility model aims to provide a slot milling fixture, which solves the problem of low universality of the existing slot milling fixture.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the milling groove fixture comprises a positioning disc, a positioning assembly and a sliding assembly, wherein a positioning mandrel and a cutter relieving groove are arranged on the positioning disc, the positioning assembly comprises a positioning pin and a positioning block, the positioning block is slidably and detachably connected in the cutter relieving groove, and the positioning pin is slidably connected on the positioning block; the sliding component comprises a sliding block and a fixing pin, the sliding block is rotationally connected to the positioning disk, and the fixing sliding pin is connected to the sliding block.

The beneficial effect of this scheme is: firstly, placing a gear on a positioning disc through a positioning mandrel on the positioning disc, then, utilizing a positioning assembly to initially position the gear, rotating a sliding assembly, enabling a fixed pin to be clamped into a tooth slot of the gear to prevent the gear from rotating, realizing final positioning of the gear, then, disassembling the positioning assembly, and enabling a cutter-back slot on the positioning disc to be free, so that the slot milling can be started; according to the scheme, when a first product is processed, the positioning component is used for initial positioning, the position of the fixed sliding block component is adjusted, and when other gears of the same batch and the same model are processed subsequently, the sliding block component replaces a fixed pin in the clamp before improvement, so that the function of limiting the gears to do circumferential rotation is achieved, and when gears of other models are required to be processed, the positioning component is used for readjusting the fixed position of the sliding block component and the positioning disk, so that the universality of the milling groove clamp is greatly improved. And the positioning block is in sliding connection in the cutter relieving groove, namely the distance between the positioning pin and the center of the positioning disk can be adjusted, so that the requirement of the measuring rod rotation center distance of different gear products can be met, and the universality of the milling groove clamp can be further improved.

Preferably, the positioning plate is provided with a first screw, the positioning block is provided with a groove, and the first screw is an inner hexagon screw.

The beneficial effect of this scheme is: the positioning block can be locked at different upper and lower positions of the cutter relieving groove through the matching of the first screw and the strip-shaped groove; and the first screw selects the hexagon socket head cap screw, and the pin head of hexagon socket head cap screw can be buried into the positioning disk, avoids damaging the gear to the joint strength of hexagon socket head cap screw is great, can ensure the stability to locating piece locking.

Preferably, the fixing pin is a taper pin, and a spring is arranged between the taper pin and the sliding block.

The beneficial effect of this scheme is: the positioning pin is a taper pin, and the taper head of the taper pin can be more fit into the tooth slot of the gear to play a role in progressive positioning; a spring is arranged between the taper pin and the sliding block, and the spring can automatically push the taper pin into a tooth slot of the gear, so that the operation is convenient.

Preferably, the sliding block is provided with a second screw, and the positioning disk is provided with an arc through groove.

The beneficial effect of this scheme is: after the second screw on the sliding block passes through the arc-shaped through groove, the nut is sleeved, and the sliding block can be fixed on the positioning disk.

Preferably, the sliding assembly further comprises a positioning seat, the positioning seat is rotationally connected to the positioning disk, and the sliding block is connected to the positioning seat.

The beneficial effect of this scheme is: through addding the positioning seat, make slider and taper pin can be located the front of positioning disk to the operation of being convenient for.

Preferably, the locating pin is provided with a clamping groove.

The beneficial effect of this scheme is: the clamping groove can enable the positioning pin to be clamped on one tooth of the gear; when the form and position tolerance requirement is based on the tooth top center of one tooth on the gear, when the gear to be processed is initially positioned, the positioning pin is sleeved and clamped on the tooth through the clamping groove, so that the initial positioning of the gear is realized.

Drawings

FIG. 1 is a front view of embodiment 1 of the present utility model;

FIG. 2 is a top view of embodiment 1 of the present utility model;

FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 1;

FIG. 4 is a schematic view of a positioning pin according to embodiment 1 of the present utility model;

fig. 5 is a schematic structural diagram of a positioning pin according to embodiment 2 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 positioning disk 1, the positioning mandrel 11, the cutter relieving groove 12, the positioning block 2, the positioning pin 21, the first screw 22, the strip-shaped groove 221, the positioning seat 3, the bolt 31, the sliding block 4, the taper pin 41, the compression spring 42, the second screw 43 and the arc-shaped through groove 431.

Example 1

The embodiment 1 is basically shown in the accompanying drawings 1-4, and the milling groove clamp shown in the figure 1 comprises a positioning disk 1, a positioning assembly and a sliding assembly, wherein a plurality of cutter relieving grooves 12 are uniformly formed in the positioning disk 1, a positioning mandrel 11 is fixed on the positioning disk 1 in a threaded manner, and the positioning mandrel 11 is concentric with the positioning disk 1; the pre-positioning assembly comprises a positioning pin 21 and a positioning block 2, the positioning block 2 is slidably connected in a cutter relieving groove 12, as shown in fig. 2, clamping grooves are formed in two sides of the cutter relieving groove 12 right above the positioning disc 1, and two sides of the positioning block 2 are slidably clamped in the two clamping grooves respectively, so that the positioning block 2 is slidably clamped in the clamping grooves; as shown in fig. 1, two sides of the cutter-relieving groove 12 are respectively connected with a first screw 22 through threads, two strip-shaped grooves 221 are respectively formed on two side surfaces of the positioning block 2, the positioning block 2 can be locked in the cutter-relieving groove 12 by screwing the two first screws 22 into the two strip-shaped grooves 221 respectively, and the positioning block 2 can be locked at different positions above and below the cutter-relieving groove 12 through the cooperation of the first screws 22 and the strip-shaped grooves 221, in the embodiment, the first screws 22 are all hexagon socket screws, the heads of the hexagon socket screws can be buried in the positioning disc 1, the gear is prevented from being damaged, the connection strength of the hexagon socket screws is high, and the locking stability of the positioning block 2 can be ensured; the locating pin 21 is connected in the locating piece 2 in a sliding mode, when the center of a gear tooth slot is used as a reference, the locating pin 21 is pulled out of the locating piece 2 for a section, the locating pin 21 is clamped in the tooth slot, gear pre-positioning can be achieved, meanwhile, the locating pin 21 can slide up and down in the cutter relieving groove 12 through the locating piece 2, namely, the distance between the locating pin 21 and the circle center of the locating disc 1 can be adjusted, and the requirement of measuring rod rotation center distances of different gear products can be met.

The sliding component comprises a sliding block 4, a positioning seat 3 and a taper pin 41, wherein the positioning seat 3 is rotationally connected to the positioning disk 1 through a bolt 31, and the specific rotational connection mode is shown in fig. 3: the positioning seat 3 is provided with a through hole, the positioning disk 1 is provided with a threaded hole, and the bolt 31 passes through the through hole and is fixed in the threaded hole of the positioning disk 1; when the positioning seat 3 needs to be fixed, the nut on the bolt 31 can be screwed down to realize fixation; the sliding block 4 is fixed on the positioning seat 3 through a screw, as shown in fig. 1, a round hole is formed in the sliding block 4, a second screw 43 is arranged in the round hole, an arc-shaped through groove 431 is formed in the positioning disk 1, after the second screw 43 sequentially passes through the round hole and the arc-shaped through groove 431, a nut is sleeved on the second screw 43, and the sliding block 4 can be fixed on the positioning disk 1 by tightening the nut; the taper pin 41 is connected to the sliding block 4 in a sliding manner, the taper pin 41 and the sliding block 4 are both located in the radial direction of the positioning disk 1, a compression spring 42 is sleeved between the taper pin 41 and the sliding block 4, and the compression spring 42 can automatically push the taper pin 41 into a tooth slot of a gear to be processed, so that final positioning of the gear to be processed is achieved.

The specific implementation process is as follows: when the geometric tolerance requirement is based on the center of a gear tooth socket, firstly, a gear to be processed passes through a positioning mandrel 11 and is placed on a positioning disc 1, then a positioning block 2 slides from top to bottom and is clamped in a cutter-retracting groove 12 right above the positioning disc 1, the position of the positioning block 2 in the cutter-retracting groove 12 is adjusted through a first screw 22, so that a positioning pin 21 meets the requirement of the rotation center distance of a gear measuring rod, and then, as shown in fig. 4, the positioning pin 21 is clamped in the tooth socket right above the gear, so that the initial positioning of the gear is realized; the positioning seat 3 is rotated to enable the sliding block 4 to do circular motion by taking the center of the positioning disc 1 as the circle center until the conical head of the conical pin 41 can be just clamped in the tooth slot of the gear, the bolt 31 and the second screw 43 are screwed down to fix the sliding block assembly on the positioning disc 1, then the positioning block 2 and the positioning pin 21 are taken down, and after the cutter slot 12 is emptied, the milling of the cutter slot can be started.

When the milling groove clamp is used for machining a first product, the positioning component is used for initial positioning, and then the slide block component is adjusted and fixed, so that when other gears with the same batch and the same model are machined later, the slide block component replaces a fixed pin in the clamp before improvement, and the function of limiting the gears to do circumferential rotation is achieved; when other types of gears are required to be processed, the fixed positions of the sliding block assembly and the positioning disc 1 are readjusted by utilizing the positioning assembly, and the universality of the milling groove clamp is greatly improved.

Example 2

A slot milling fixture as shown in fig. 5 differs from embodiment 1 in that: a clamping groove is formed in the positioning pin 21 in the positioning assembly, and the clamping groove can enable the positioning pin 21 to be clamped on one tooth of the gear.

When the form and position tolerance requirement is based on the tooth top center of one tooth on the gear, when the gear to be processed is initially positioned, the positioning pin 21 is sleeved and clamped on the tooth through the clamping groove, so that the gear is initially positioned; then, a series of steps such as fixing the slider assembly in example 1 are repeated.

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. The utility model provides a milling flutes anchor clamps which characterized in that: the positioning device comprises a positioning disc, a positioning assembly and a sliding assembly, wherein a positioning mandrel and a cutter relieving groove are arranged on the positioning disc, the positioning assembly comprises a positioning pin and a positioning block, the positioning block is slidably and detachably connected in the cutter relieving groove, and the positioning pin is slidably connected on the positioning block; the sliding component comprises a sliding block and a fixing pin, the sliding block is rotationally connected to the positioning disk, and the fixing sliding pin is connected to the sliding block.

2. The slot milling fixture of claim 1, wherein: the positioning plate is provided with a first screw, the positioning block is provided with a groove, and the first screw is an inner hexagon screw.

3. The slot milling fixture of claim 1, wherein: the fixed pin is a taper pin, and a spring is arranged between the taper pin and the sliding block.

4. The slot milling fixture of claim 2, wherein: the slide block is provided with a second screw, and the positioning disk is provided with an arc through groove.

5. The slot milling fixture of claim 1, wherein: the sliding component further comprises a positioning seat, the positioning seat is rotationally connected to the positioning disk, and the sliding block is connected to the positioning seat.

6. The slot milling fixture of any one of claims 1-5, wherein: the locating pin is provided with a clamping groove.