CN210305823U

CN210305823U - Fixed frock is used in gear wheel machining

Info

Publication number: CN210305823U
Application number: CN201921254550.0U
Authority: CN
Inventors: 李梁
Original assignee: Sichuan Oilman Machinery Co ltd
Current assignee: Sichuan Oilman Machinery Co ltd
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-04-14
Anticipated expiration: 2029-08-05

Abstract

The utility model discloses a gear wheel machining is with fixed frock belongs to the auxiliary fixtures technical field that gear wheel machining used. The problem of when processing the cone among the prior art, adopt three-jaw chuck clamping, because the product belongs to carbide, and the wall thickness of part is thinner, the clamping is slow and easy emergence of deformation during processing is solved. Including the dabber, rise tight cover, nut and tapering axle sleeve, rise a pot head of tight cover and establish at the spindle, it is fixed through the nut, be equipped with the installation cavity in the tight cover that rises, tapering axle sleeve cover is established at the spindle, it is spacing in the installation cavity through the nut, and the inclined plane of tapering axle sleeve is close to the one end that rises tight cover and be the low side, the one end of keeping away from the tight cover that rises is the high-end, be equipped with the spigot surface with the inclined plane looks adaptation of tapering axle sleeve on the inner wall of the other end of the tight cover that rises, be equipped with the draw-in groove that is used for placing.

Description

Fixed frock is used in gear wheel machining

Technical Field

The utility model relates to an auxiliary fixtures technical field that gear wheel machining used, more specifically the utility model relates to a gear wheel machining is with fixed frock that says so.

Background

Along with the gradual change of hard alloy products, the biggest problem in the production process is that the clamping is troublesome, the products deform during processing, and the quality stability of the products is not well controlled. In order to solve the problem, corresponding tools are produced.

When the roller cone is machined in the past, a three-jaw chuck is adopted for clamping, and because the product belongs to hard alloy and the wall thickness of a part is thin, the clamping is slow in machining, deformation is easy to occur, and the concentricity and the size are easy to be out of tolerance. The method has the defects of limited processing space, dependence on the skills of personnel, more consumed working hours, poor quality stability and the like.

SUMMERY OF THE UTILITY MODEL

In order to solve among the prior art when processing the gear wheel, adopt three-jaw chuck clamping, because the product belongs to the carbide class, and the wall thickness of part is thinner, adds the clamping and takes place to warp slowly and easily man-hour, and concentricity and the easy overproof of size rely on personnel's technical ability, consume man-hour more, problem that stability of quality is not good, the utility model provides a gear wheel processing is with fixed frock.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a gear wheel processing is with fixed frock, including the dabber, rise tight cover, nut and tapering axle sleeve, the pot head that rises tight cover is established at the spindle, it is fixed through the nut, be equipped with the installation cavity in the tight cover that rises, tapering axle sleeve cover is established at the spindle, it is spacing in the installation cavity through the nut, and the inclined plane of tapering axle sleeve is close to the one end that rises tight cover and is the low side, the one end of keeping away from the tight cover that rises is the high-end, be equipped with the spigot surface with the inclined plane looks adaptation of tapering axle sleeve on the inner wall of the other end of the tight cover that rises, be equipped with the draw-in groove.

The utility model discloses at the during operation, will wait to process the gear sleeve by the manual work earlier on the draw-in groove of the outer wall of the other end that rises and tightly overlaps, the stop nut of the tapering axle sleeve of constantly screwing moves the tapering axle sleeve to one side of the tight cover that rises, and the tapering axle sleeve cooperatees with the spigot surface that rises and tightly overlaps with the inclined plane on the excircle when removing to one side of the tight cover that rises, pushes up the tight cover that rises, and the one end grow that makes the tight cover that rises be close to the tapering axle sleeve rises and tightly waits to process the gear wheel, has realized that the fastening waits to process the.

Furthermore, a spring is arranged in the mounting cavity, one end of the spring is attached to the side wall of the tensioning sleeve, and the other end of the spring is attached to the end portion of the taper shaft sleeve. The spring is arranged in the installation cavity of the cone machining device, so that the effect of bidirectional positioning of the taper shaft sleeve is achieved, the problem that the taper shaft sleeve is not flexible during machining, the expansion sleeve cannot firmly expand a cone to be machined is solved, and machining quality of the cone is unstable. And the fastening mode is also faster.

Furthermore, be equipped with the location arch on the outer fringe of dabber, the tight cover that rises includes the hollow post of integrated into one piece first section and the hollow post of second section, and wherein the internal diameter of the hollow post of first section equals with the external diameter of dabber, and the tight cover that rises is established at the dabber through the hollow post cover of first section, and fixed through location arch and nut, and the installation cavity sets up in the hollow post of second section. The hollow column of first section is for the location to rise tight cover and uses, and is protruding with the hollow column location of first section through nut and location, and then the reference column rises tight cover, and the hollow column of second section is for the installation spring and for the tapered shaft cover reservation removal space.

Furthermore, a plurality of gaps are formed in the side wall of the second section of hollow column, the side wall of the second section of hollow column is divided into a plurality of mutually independent tensioning strips by the gaps, one ends of the tensioning strips, which are close to the first section of hollow column, are mutually connected, and one ends of the tensioning strips, which are close to the taper shaft sleeve, are mutually separated.

Furthermore, a pot head of spring is established on the location arch and is laminated mutually with the lateral wall of the hollow post of second section, the tip of tapering axle sleeve seted up with the protruding location platform that highly equals of location, the other pot head of spring is established on the location platform and is laminated mutually with the tip of tapering axle sleeve.

Furthermore, countersunk positioning holes are formed in two ends of the mandrel. The tight cone of waiting to process of rising carries out cylindrical grinding double tops processing through the locating hole.

Compared with the prior art, the utility model beneficial effect who has is:

1. the utility model discloses an inventor is engaged in the on-the-spot technology process for a long time, finds that current processing mode has above-mentioned defect, through investigation and repetition test, improves current processing mode, and aim at lies in designing a gear wheel machining and uses fixed frock, has: high efficiency, simple operation, low price, small size, convenience and strong stability of product quality.

2. The utility model discloses an utilize nut and dabber threaded connection restriction to rise tight cover's degree of freedom, when treating that the processing gear assembly is on rising to overlap, realize promoting the tapering axle sleeve through the nut of rotating opposite side, the tapering axle sleeve pushes away the tight cover that rises with the inclined plane on the excircle when removing to the direction of the tight cover that rises, make its grow rise and tightly treat the processing gear wheel, then can process behind the two apical axis of excircle mill, after processing is accomplished, withdraw from the nut of spacing tapering axle sleeve, make the tight cover that rises diminish, easily take off the well-processed gear wheel.

Drawings

FIG. 1 is a schematic structural view of a fixture for machining a cone of the present invention;

FIG. 2 is a schematic view of a fixture for machining a cone of the present invention;

FIG. 3 is a schematic structural view of a tension sleeve of the fixing tool for machining a cone of the present invention;

fig. 4 is a schematic structural view of the taper shaft sleeve of the fixing tool for machining the cone.

The labels in the figure are: the method comprises the following steps of 1-a nut, 2-a tensioning sleeve, 3-a spring, 4-a cone to be machined, 5-a taper shaft sleeve, 6-a tensioning strip, 7-a mandrel, 8-a first section of hollow column, 9-a second section of hollow column, 10-a clamping groove, 11-a guide surface, 12-a positioning bulge, 13-a positioning table and 14-an inclined surface.

Detailed Description

The present invention will be further described with reference to the following examples, which are only some, but not all, of the examples of the present invention. Based on the embodiments in the present invention, other embodiments used by those skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

as shown in fig. 1 and 2, a fixed tool for machining a cone comprises a mandrel 7, a tensioning sleeve 2, a nut 1 and a taper shaft sleeve 5, wherein one end of the tensioning sleeve 2 is sleeved on the mandrel 7 and fixed through the nut 1, an installation cavity is arranged in the tensioning sleeve 2, the taper shaft sleeve 5 is sleeved on the mandrel 7 and is limited in the installation cavity through the nut 1, one end, close to the tensioning sleeve 2, of an inclined surface 14 of the taper shaft sleeve 5 is a low end, one end, far away from the tensioning sleeve 2, of the taper shaft sleeve 2 is a high end, a guide surface 11 matched with the inclined surface 14 of the taper shaft sleeve 5 is arranged on the inner wall of the other end of the tensioning sleeve 2, and a clamping groove 10 for placing a cone 4 to be machined is formed in the outer wall of the. Countersunk positioning holes are formed in two ends of the mandrel 7. The tight cone 4 of treating after-tightening carries out the double-top processing of peripheral milling through the locating hole.

The utility model discloses at the during operation, will wait to process 4 covers by the manual work earlier on the draw-in groove 10 of the outer wall of the tight cover 2 that rises, the stop nut 1 of tapering axle sleeve 5 constantly screws, move tapering axle sleeve 5 to one side of the tight cover 2 that rises, tapering axle sleeve 5 cooperatees with inclined plane 14 on the excircle and the spigot surface 11 of the tight cover 2 that rises when removing to one side of the tight cover 2 that rises, the tight cover 2 that rises is opened in the top, the one end grow that makes the tight cover 2 that rises be close to tapering axle sleeve 5 rises and tightly treats processing gear wheel 4, the effect of waiting to process gear wheel 4 in the fastening has been realized. And then clamping through a countersunk positioning hole, machining can be carried out after the double-ejection mandrel 7 is externally ground, detection of size and concentricity is carried out after the double-ejection mandrel 7 is machined in place, and the first part is machined in the procedure after the double-ejection mandrel is qualified. The circulation operation is carried out. After the machining is finished, the nut 1 of the limiting taper shaft sleeve 5 is withdrawn, so that the tensioning sleeve 2 is reduced, and the machined cone is easily taken down.

Example 2:

as shown in fig. 1 and 3, the embodiment is further optimized on the basis of the embodiment 1, the embodiment focuses on explaining the improved parts compared with the embodiment 1, and the same parts are not described again, in the embodiment, a spring 3 is arranged in the installation cavity, one end of the spring 3 is attached to the side wall of the tension sleeve 2, and the other end of the spring 3 is attached to the end of the taper shaft sleeve 5. The spring 3 is arranged in the installation cavity in the embodiment, so that the effect of bidirectional positioning of the taper shaft sleeve 5 is achieved, the taper shaft sleeve 5 is prevented from loosening during machining, the tensioning sleeve 2 cannot firmly tension the cone 4 to be machined, and machining quality of the cone is unstable. And the fastening mode is also faster.

The tool of the embodiment has the advantages that the spring 3 is additionally arranged, the taper shaft sleeve 5 is matched with the nut 1, the tensioning effect is achieved, the central holes are formed in the two ends of the mandrel 7, cylindrical grinding and double-top machining are facilitated, an ideal auxiliary tool for the roller is provided for a factory, and the problems of rapid clamping and product quality are solved. Can adopt two top modes during processing, guarantee that the concentricity of processing can reach within 0.02mm, replace original chuck clamping, the processing mode of the hole of anti-tightening. The quality of the tool is better than that of a three-jaw clamping mode through examination, the cost is lower, and the efficiency is higher.

In this embodiment, as shown in fig. 4, a positioning protrusion 12 is disposed on an outer edge of the mandrel 7, the tension sleeve 2 includes a first hollow column 8 and a second hollow column 9 that are integrally formed, wherein an inner diameter of the first hollow column 8 is equal to an outer diameter of the mandrel 7, the tension sleeve 2 is sleeved on the mandrel 7 through the first hollow column 8, and is fixed to the nut 1 through the positioning protrusion 12, and the mounting cavity is disposed in the second hollow column 9. The hollow column 8 of the first section is used for positioning the tensioning sleeve 2, the hollow column 8 of the first section is positioned through the nut 1 and the positioning protrusion 12, then the positioning column tensioning sleeve 2 is used, and the hollow column 9 of the second section is used for installing the spring 3 and reserving a moving space for the taper shaft sleeve 5.

Specifically, be equipped with a plurality of clearances on the hollow post 9's of second section lateral wall, the hollow post 9's of second section lateral wall is separated into a plurality of mutually independent tight strips 6 that rise by the clearance, and the tight strip 6 that rises is close to the one end interconnect of the hollow post 8 of first section, and the tight strip 6 that rises is close to the one end alternate segregation of tapering axle sleeve 5.

Specifically, a pot head of spring 3 is established on protruding 12 of location and is laminated mutually with the lateral wall of the hollow post 9 of second section, the tip of tapering axle sleeve 5 seted up with the protruding 12 highly equal location platform 13 of location, the other pot head of spring 3 is established on location platform 13 and is laminated mutually with the tip of tapering axle sleeve 5.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a gear wheel processing is with fixed frock, a serial communication port, including dabber (7), tight cover (2) rises, nut (1) and tapering axle sleeve (5), the pot head of tight cover (2) rises is established on dabber (7), it is fixed through nut (1), be equipped with the installation cavity in tight cover (2) rises, tapering axle sleeve (5) cover is established on dabber (7), it is spacing in the installation cavity to pass through nut (1), and inclined plane (14) of tapering axle sleeve (5) are close to the one end of tight cover (2) that rises and are the low side, the one end of keeping away from tight cover (2) that rises is high-end, be equipped with spigot surface (11) with inclined plane (14) looks adaptation of tapering axle sleeve (5) on the inner wall of the other end of tight cover (2) that rises, be equipped with draw-in groove (10) that are used for placing waiting to process gear wheel (4) on.

2. The fixing tool for machining the cone of claim 1, wherein a spring (3) is arranged in the mounting cavity, one end of the spring (3) is attached to the side wall of the tension sleeve (2), and the other end of the spring (3) is attached to the end of the taper shaft sleeve (5).

3. The fixing tool for machining the cone is characterized in that a positioning protrusion (12) is arranged on the outer edge of the mandrel (7), the tensioning sleeve (2) comprises a first section of hollow column (8) and a second section of hollow column (9) which are integrally formed, the inner diameter of the first section of hollow column (8) is equal to the outer diameter of the mandrel (7), the tensioning sleeve (2) is sleeved on the mandrel (7) through the first section of hollow column (8) and is fixed with the nut (1) through the positioning protrusion (12), and the mounting cavity is formed in the second section of hollow column (9).

4. The fixing tool for machining the cone as claimed in claim 3, wherein a plurality of gaps are formed in the side wall of the second section of the hollow column (9), the side wall of the second section of the hollow column (9) is divided into a plurality of mutually independent tensioning strips (6) by the gaps, one ends of the tensioning strips (6) close to the first section of the hollow column (8) are connected with each other, and one ends of the tensioning strips (6) close to the taper shaft sleeves (5) are separated from each other.

5. The fixing tool for machining the cone is characterized in that one end of the spring (3) is sleeved on the positioning protrusion (12) and attached to the side wall of the second section of the hollow column (9), a positioning table (13) with the same height as the positioning protrusion (12) is arranged at the end of the tapered shaft sleeve (5), and the other end of the spring (3) is sleeved on the positioning table (13) and attached to the end of the tapered shaft sleeve (5).

6. The fixing tool for machining the cone as claimed in any one of claims 1 to 5, wherein countersunk positioning holes are formed in two ends of the mandrel (7).