CN210996757U

CN210996757U - Device for machining internal spline

Info

Publication number: CN210996757U
Application number: CN201921576345.6U
Authority: CN
Inventors: 刘勇; 朱腾飞; 李建龙
Original assignee: Lanzhou Wanli Aviation Electromechanical Co ltd
Current assignee: Lanzhou Wanli Aviation Electromechanical Co ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-07-14
Anticipated expiration: 2029-09-20

Abstract

The utility model discloses a device for processing an internal spline, which comprises a clamping mechanism, a knife handle and a slotting tool sharpening mechanism, wherein a clamp base of the clamping mechanism is provided with a pressing plate for pressing a part to be processed; a compression screw for compressing the part to be processed by compressing the pressure plate is arranged on the pressure plate; the knife handle comprises a knife handle main body, and the slotting tool is arranged on the knife handle main body; the slotting tool sharpening mechanism comprises a pneumatic grinding machine and an installation frame, the pneumatic grinding machine comprises a pneumatic grinding machine main body and a grinding wheel, the grinding wheel is fixed on the grinding machine main body through a nut, the pneumatic grinding machine is fixed on the installation frame, compressed air is introduced into the grinding machine main body to drive the grinding wheel to rotate, and the slotting tool sharpening is achieved; the clamping mechanism and the slotting tool sharpening mechanism are arranged on the machine tool workbench in parallel. This internal spline processingequipment can effectually solve internal spline machining efficiency low, blind hole end internal spline chip removal difficulty, slotting tool sharpening and need the problem of loading and unloading repeatedly, and this device simple structure, low in manufacturing cost, simple to operate.

Description

Device for machining internal spline

Technical Field

The utility model belongs to the machining field, concretely relates to a device for internal spline processing.

Background

The traditional processing method of the internal spline mainly comprises the following steps: the slotting method is to perform slotting one by using a forming slotting tool through the rotation of an indexing mechanism, and has the defects of inconvenient clamping of an internal spline part, difficult discharge of cutting scraps during processing of the internal spline at the blind hole end, easy blunting of the slotting tool, repeated disassembly and sharpening, and the like, so that the problems of low processing efficiency and low processing precision are caused.

How to solve the problems of low processing efficiency and low precision of the internal spline becomes a technical problem to be solved urgently in the field.

Disclosure of Invention

Purpose of the utility model

In order to solve the problem that the clamping is inconvenient, difficult chip removal, cutter sharpening need relapse the dismouting, the utility model provides a device for internal spline processing.

Technical solution of utility model

A device for machining an internal spline comprises a clamping mechanism, a cutter handle and a slotting tool sharpening mechanism, wherein the clamping mechanism comprises a clamp base, and a pressing plate for pressing a part to be machined is arranged on the clamp base; the pressing plate is provided with a pressing screw for pressing one or more parts to be processed by pressing the pressing plate; the knife handle comprises a knife handle main body, and the slotting tool is arranged on the knife handle main body; the slotting tool sharpening mechanism comprises a pneumatic sander and an installation frame, wherein the pneumatic sander comprises a pneumatic sander main body and a grinding wheel, the grinding wheel is fixed on the sander main body through a nut, the pneumatic sander is fixed on the installation frame, compressed air is introduced into the sander main body to drive the grinding wheel to rotate, and the slotting tool sharpening is achieved; the clamping mechanism and the slotting tool sharpening mechanism are arranged on the machine tool workbench in parallel.

Preferably, a positioning hole for positioning the part on the clamping mechanism is formed in the clamp base.

Preferably, the positioning holes are arranged on the clamp base in pairs.

Preferably, the fixture base is provided with a first positioning key which is matched with a T-shaped groove in a machine tool workbench to realize the positioning of the fixture base.

Preferably, a slotting tool mounting hole for positioning a slotting tool is formed in one end of the tool handle main body, a first fastening screw hole is formed in the side face of the slotting tool mounting hole, and the first fastening screw hole is matched with the first fastening screw hole to clamp the slotting tool.

Preferably, the cutter handle further comprises a cutting fluid hole and a connecting hole, the cutting fluid hole is formed in the end face of the cutter handle main body, the connecting hole is vertically communicated with the cutting fluid hole, and the connecting hole is connected with the cutting fluid pipe.

Preferably, the mounting bracket includes the support main part, is provided with in the support main part and presss from both sides tight dish, presss from both sides tight dish and connects in the support main part through the pivot, and makes to press from both sides tight dish and pneumatic polisher and can rotate certain angle in the support main part, fixes the pivot in the anchor clamps main part after rotating the angle that needs.

Preferably, the clamping disc comprises a first clamping block and a second clamping block which are connected through a guide rod, the first clamping block and the second clamping block clamp the pneumatic grinding machine, and two sides of the second clamping block are rotatably connected to the support body through rotating shafts.

Preferably, the support main body further comprises a second positioning key and a support mounting hole, and the second positioning key is matched with a T-shaped groove in a machine tool workbench to realize positioning of the support main body; the support mounting hole is matched with the screw to fix the support main body on the machine tool workbench.

Preferably, the guide rod one end is provided with radial hole, and the other end is the screw thread, has seted up radial hole one end and has passed through the riveting mode and connect on pressing from both sides tight piece two, and the screw thread end is used for cooperating with the nut.

The advantages of the utility model

The utility model has the advantages that: this internal spline processingequipment can effectually solve internal spline machining efficiency low, blind hole end internal spline chip removal difficulty, slotting tool sharpening and need the problem of loading and unloading repeatedly, and this device simple structure, low in manufacturing cost, simple to operate.

Drawings

Fig. 1 is a schematic view of the overall structure of a device for processing an internal spline according to the present invention.

Fig. 2 is a schematic structural view of the clamping mechanism.

Fig. 3 is a schematic structural view of a fixture base.

FIG. 4 is a side view of the tool shank body.

Fig. 5 is a sectional view a-a of fig. 4.

Figure 6 is a schematic view of a slotting cutter sharpening mechanism.

Fig. 7 is a schematic view of a mounting frame structure.

Fig. 8 is a front view of the rotating shaft.

Fig. 9 is a side view of the rotating shaft.

Wherein: 1-workbench, 2-slotting tool sharpening mechanism 3-clamping mechanism, 4-tool handle, 5-machine tool main shaft, 6-clamp base, 7-part, 8-pressing plate, 9-positioning hole, 10-base mounting hole, 11-positioning key I, 12-tool handle main body, 13-connecting hole, 14-cutting liquid hole, 15-slotting tool mounting hole, 16-set screw hole I, 17-set screw II, 18-grinding wheel, 19-guide rod, 20-clamping block I, 21-pneumatic grinding machine main body, 22-clamping block II, 23-support main body, 24-rotating shaft, 25-positioning key II and 26-support mounting hole.

6. The specific implementation mode is as follows:

Detailed Description

Fig. 2 is a schematic structural diagram of the clamping mechanism of the present invention.

As shown in fig. 1, the clamping mechanism includes: clamp base 6 and clamp plate 8, wherein: a pressing plate 8 for pressing and releasing the part 7 is arranged on the clamp base 6; the pressure plate 8 is provided with a compression screw for compressing the one or more parts 7 by compressing the pressure plate 8.

And a positioning hole 9 for positioning the part on the clamping mechanism 3 is also formed in the clamp base 6. The positioning holes 9 may be provided in pairs on the jig base 6, and the positioning holes 9 may be provided in plural pairs.

The clamping mechanism 3 can also comprise a base mounting hole 10 formed in the clamp base 6 and used for fixing the clamp base 6 on the machine tool workbench 1 through a screw.

The positioning device can further comprise a first positioning key 11 arranged on the fixture base 6, and the first positioning key is matched with a T-shaped groove on the machine tool workbench 1 to realize the positioning of the fixture base 6. The first positioning keys 11 can be arranged on the clamp base 6 in pairs.

The clamping mechanism 3 can clamp a plurality of parts 7 at a time, the parts 7 are positioned by end faces and outer circles and clamped in the positioning holes 9, and the installation is simple and convenient.

Fig. 3 is a schematic structural view of the tool shank body 12.

The handle of a knife includes handle of a knife main part 12 and holding screw one, wherein: the structure of the tool holder main body 12 is as shown in fig. 3, a slotting tool mounting hole 15 and a first fastening screw hole 16 are arranged on the tool holder main body, the slotting tool mounting hole 15 is used for positioning a slotting tool, and the first fastening screw hole 16 are matched to clamp the slotting tool.

The handle body 12 may also include: the cutting tool comprises a connecting hole 13 and a cutting fluid hole 14, wherein the cutting fluid hole 14 is formed in the end face of the tool holder main body 12 and used for allowing cutting fluid to pass through; the connecting hole 13 is vertically communicated with the cutting fluid hole 14 and is used for being connected with a cutting fluid pipe, cutting fluid is sprayed out from the cutting fluid hole 14 to wash away cutting chips generated by slotting, and the cutting fluid plays a role in cooling the cutting edge of the slotting tool, and particularly has a good chip removal effect on machining of an internal spline at the end of a blind hole.

With reference to fig. 1, 4, 5, 6, the slotting cutter sharpening mechanism 2 includes a pneumatic sander and a mounting bracket, wherein: the pneumatic grinding machine comprises a pneumatic grinding machine main body 21 and a grinding wheel 18, wherein the grinding wheel 18 is fixed on the grinding machine main body 21 through a nut, the pneumatic grinding machine is fixed on a mounting frame, and compressed air is introduced into the grinding machine main body 21 to drive the grinding wheel 18 to rotate so as to realize the blade sharpening of a slotting tool.

The mounting bracket comprises a bracket main body 23, a clamping disc, a rotating shaft 24 and a second set screw 17, wherein the bracket main body 23 is provided with the clamping disc, the rotating shaft 24 and the second set screw 17, the clamping disc is connected to the bracket main body 23 through the rotating shaft 24, the clamping disc and the pneumatic grinding machine can rotate on the bracket main body 23 by a certain angle, and the clamping disc and the pneumatic grinding machine are fixed to the clamp main body 23 through the second set screw 17 after rotating to a required angle.

The clamping disc comprises a first clamping block 20, a second clamping block 22 and a guide rod 19, wherein the first clamping block 20, the second clamping block 22 and the guide rod 19 are matched to clamp the pneumatic grinding machine through nuts.

The bracket main body 23 can also comprise a second positioning key 25 and a bracket mounting hole 26, wherein the second positioning key 25 is used as the first positioning key 6 and is matched with a T-shaped groove on the machine tool workbench 1 to realize the positioning of the bracket main body 23; the bracket mounting holes 26 cooperate with the screws to achieve fixation of the bracket main body 23 on the workbench.

One end of the guide rod 19 is provided with a radial hole, the other end of the guide rod is provided with threads, the radial hole is used for being matched with a hole in the second clamping block 22 and connected to the second clamping block 22 in a riveting mode, and the threaded end is used for being matched with a nut to realize clamping.

As shown in fig. 5, one end of the rotating shaft 24 is provided with threads, and the clamping disc is connected with the rotating shaft 24 through matching with the threaded hole on the second clamping block 22; the middle part is an optical axis and is matched with a hole on the bracket main body 23 to realize the positioning and rotation of the pneumatic grinding machine and the clamping disc; the other end is flat structure, which is convenient for installing the rotating shaft 24.

When the internal spline on the part 7 is machined, the slotting tool is arranged on the tool handle 4 and then clamped on the main shaft 5 of the machine tool, the clamping mechanism 3 and the slotting tool sharpening mechanism 2 are arranged on the worktable of the machine tool in parallel, the grinding wheel is adjusted to a required angle, and then a plurality of parts 7 are clamped on the clamping mechanism 3, wherein one installation position relationship is shown in figure 1. When the internal spline teeth of the part 7 are processed in sequence by utilizing the indexing function of the machine tool main shaft 5 during processing, when the slotting tool needs to be sharpened after a certain number of parts 7 are processed, the machine tool main shaft 5 automatically moves to the slotting tool sharpening mechanism 2, and the pneumatic grinding machine is charged with compressed air to rotate so as to realize the automatic sharpening of the cutting edge of the slotting tool, so that the slotting tool is kept in a good cutting state, the cutting efficiency is improved, and the processing quality is improved.

Claims

1. A device for machining an internal spline is characterized by comprising a clamping mechanism (3), a cutter handle (4) and a slotting tool sharpening mechanism (2), wherein the clamping mechanism (3) comprises a clamp base (6), and a pressing plate (8) for pressing a part to be machined is arranged on the clamp base (6); a compression screw for compressing one or more parts to be processed through compressing the pressure plate (8) is arranged on the pressure plate (8);

the knife handle comprises a knife handle main body (12), and the slotting tool is arranged on the knife handle main body (12);

slotting tool sharpening mechanism (2) are including pneumatic polisher and mounting bracket, pneumatic polisher includes pneumatic polisher main part (21) and emery wheel (18), emery wheel (18) are fixed on polisher main part (21) through the nut, pneumatic polisher is fixed on the mounting bracket, polisher main part (21) let in compressed air and drive the rotation of emery wheel (18), realize that the sharpening clamping mechanism (3) and the slotting tool sharpening mechanism (2) of slotting tool are installed on lathe workstation (1) in parallel.

2. A device for internal spline machining according to claim 1, characterized in that a positioning hole (9) for positioning a part on the chuck (3) is provided on the chuck base (6).

3. A device for internal spline machining according to claim 1, characterized in that the positioning holes (9) are provided in pairs on the jig base (6).

4. The device for machining the internal spline is characterized in that a first positioning key (11) is arranged on the clamp base (6) and is matched with a T-shaped groove in the machine tool workbench (1) to realize the positioning of the clamp base (6).

5. The device for machining the internal spline is characterized in that a slotting tool mounting hole (15) for positioning a slotting tool is formed in one end of the tool holder body (12), a first set screw hole (16) is formed in the side face of the slotting tool mounting hole (15), and the first set screw hole (16) are matched to clamp the slotting tool.

6. The device for machining the internal spline of claim 1, wherein the tool holder further comprises a cutting fluid hole and a connecting hole, the cutting fluid hole is formed in the end face of the tool holder body, the connecting hole is vertically communicated with the cutting fluid hole, and the connecting hole is connected with a cutting fluid pipe.

7. The apparatus for processing an internal spline according to claim 1, wherein the mounting bracket comprises a bracket body (23), the bracket body (23) is provided with a clamping disc, the clamping disc is connected to the bracket body (23) through a rotating shaft (24), the clamping disc and the pneumatic sander can rotate on the bracket body (23) by a certain angle, and the rotating shaft (24) is fixed on the bracket body (23) after rotating to a required angle.

8. The apparatus for internal spline machining according to claim 7, wherein the clamping disk comprises a first clamping block (20) and a second clamping block (22) which are connected through a guide rod (19), the first clamping block (20) and the second clamping block (22) clamp the pneumatic sander, and both sides of the second clamping block (22) are rotatably connected to the bracket body (23) through rotating shafts (24).

9. The device for machining the internal spline is characterized in that the support body further comprises a second positioning key (25) and a support mounting hole (26), and the second positioning key (25) is matched with a T-shaped groove in the machine tool workbench (1) to realize the positioning of the support body (23); the bracket mounting hole (26) is matched with the screw to fix the bracket main body (23) on the machine tool workbench (1).

10. The device for machining the internal spline of claim 8, wherein one end of the guide rod (19) is provided with a radial hole, the other end of the guide rod is provided with threads, the end provided with the radial hole is connected to the second clamping block (22) in a riveting mode, and the threaded end is used for being matched with a nut.