CN219211757U

CN219211757U - Milling fixture device for rear bracket

Info

Publication number: CN219211757U
Application number: CN202320543131.9U
Authority: CN
Inventors: 赵昕
Original assignee: Dalian University of Technology
Current assignee: Dalian University of Technology
Priority date: 2023-03-20
Filing date: 2023-03-20
Publication date: 2023-06-20
Anticipated expiration: 2033-03-20

Abstract

The utility model provides a rear bracket milling fixture device, comprising: the positioning device and the clamping device are arranged on the clamp body, the positioning device comprises a transverse positioning structure and a longitudinal positioning structure, the transverse positioning structure comprises a support frame and a support nail I, the support frame is fixed on the left side of the clamp body, and the support nail I is fixed on the right side surface of the support frame; the longitudinal positioning structure comprises a rear supporting frame and a supporting nail II, the rear supporting frame is arranged at the rear side of the middle part of the clamp body, and the supporting nail II is arranged on the inner side surface of the rear supporting frame; the clamping device comprises a transverse clamping structure and a longitudinal clamping structure, wherein the transverse clamping structure comprises a V-shaped block and a pneumatic device I; the longitudinal clamping structure comprises a pressing block and a pneumatic device II, and the utility model mainly utilizes a positioning mode of combining and positioning a plane, a V-shaped block and a support nail, thereby realizing the complete positioning of the rear bracket part.

Description

Milling fixture device for rear bracket

Technical Field

The utility model relates to the technical field of machining, in particular to a milling fixture device for a rear bracket.

Background

The back bracket part of the lathe is an important part on a CA6140 lathe and is positioned at the tail part of the lathe to play a role in supporting and fixing. The rear bracket part of the lathe is combined with the lathe body through a bolt and a taper pin, and three lever holes are respectively provided with a screw rod, a lever and an operating rod, so that the screw rod, the lever and the operating rod are reinforced and fixed, and the machining precision of the lathe is improved. The size of the back bracket part of the lathe is smaller, the structural shape is complex, and the size precision, the geometric shape and the mutual position precision of the back bracket part of the lathe influence the precision of a transmission system of the lathe, thereby influencing the precision of the machined part. The existing lathe rear bracket part clamp has the defects of complicated positioning scheme, inaccurate positioning, excessive positioning elements and auxiliary elements and the like.

It is therefore desirable to design a rear bracket milling fixture device.

Disclosure of Invention

According to the technical problem set forth above, a rear bracket milling fixture device is provided. The utility model mainly utilizes the positioning mode of combining and positioning the plane, the V-shaped block and the support nails, thereby realizing the complete positioning of the rear bracket part. The utility model adopts the following technical means:

a rear bracket milling fixture apparatus, comprising: the positioning device and the clamping device are arranged on the clamp body, the positioning device comprises a transverse positioning structure and a longitudinal positioning structure, the transverse positioning structure comprises a supporting frame and a supporting nail I, the supporting frame is fixed on the left side of the clamp body, and the supporting nail I is fixed on the right side surface of the supporting frame; the longitudinal positioning structure comprises a rear supporting frame and a supporting nail II, the rear supporting frame is arranged at the rear side of the middle part of the clamp body, and the supporting nail II is arranged on the inner side surface of the rear supporting frame; the clamping device comprises a transverse clamping structure and a longitudinal clamping structure, the transverse clamping structure comprises a V-shaped block and a pneumatic device I, the pneumatic device I is arranged on the right side of the clamping body, and the V-shaped block is arranged at the front end of the pneumatic device I; the longitudinal clamping structure comprises a pressing block and a pneumatic device II, wherein the pneumatic device II is arranged on the front side of the middle of the clamping body, and the pressing block is arranged at the front end of the pneumatic device II.

Further, a vertical positioning structure is arranged at the vertical intersection of the axes of the transverse positioning structure and the longitudinal positioning structure, and the vertical positioning structure is an adjustable support nail.

Further, a fixed guide structure is arranged between the pneumatic device I and the V-shaped block, the fixed guide structure comprises a connecting plate and a V-shaped block guide plate, the connecting plate is arranged on the clamp body, the pneumatic device I is fixedly arranged on the connecting plate, the V-shaped block guide plate is arranged at the front end of the connecting plate, and the V-shaped block can slide in the V-shaped block guide plate.

Further, the pneumatic device II is fixedly connected with the clamp body through a front supporting frame.

The utility model has the following advantages:

1. according to the milling fixture device for the rear bracket, provided by the utility model, the side surface of the rear bracket part is used as a positioning reference, and the complete positioning of the rear bracket part can be realized by adopting a positioning scheme of combining and positioning a plane, a V-shaped block and a support nail; the clamping mechanism for driving the pressing block by adopting the pneumatic device has the advantages of simple structure, processing precision guarantee, labor intensity reduction and processing efficiency improvement.

For the reasons, the utility model can be widely popularized in the fields of machining technology and the like.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort to a person skilled in the art.

Fig. 1 is a front view of a rear bracket milling fixture apparatus of the present utility model.

Fig. 2 is a left side view of a rear bracket milling fixture apparatus of the present utility model.

Fig. 3 is a top view of a rear bracket milling fixture device of the present utility model.

In the figure: 1. a clamp body; 2. a support plate; 3. a support frame; 4. a support nail I; 5. a hexagon socket head cap screw I; 6. an adjustable support pin; 7. a hexagonal nut; 8. a V-shaped block; 9. a V-shaped block upper guide plate; 10. v-shaped block lower guide plate; 11. a connecting plate; 12. a pneumatic device I; 13. square tool setting block; 14. a rear support; 15. a front support; 16. a hexagon socket head cap screw II; 17. a taper pin; 18. a pneumatic device II; 19. a support nail II; 20. and (5) briquetting.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-3, the present utility model provides a rear bracket milling fixture apparatus comprising: the positioning device and the clamping device are arranged on the clamp body 1, the positioning device comprises a transverse positioning structure and a longitudinal positioning structure, the transverse positioning structure comprises a support frame 3 and a support nail I4, the support frame 3 is fixed on the left side of the clamp body 1, and the support nail I4 is fixed on the right side surface of the support frame 3; the longitudinal positioning structure comprises a rear supporting frame 14 and supporting nails II 19, the rear supporting frame 14 is arranged on the rear side of the middle of the clamp body 1, and the supporting nails II 19 are arranged on the inner side surface of the rear supporting frame 14; the clamping device comprises a transverse clamping structure and a longitudinal clamping structure, the transverse clamping structure comprises a V-shaped block 8 and a pneumatic device I12, the pneumatic device I12 is arranged on the right side of the clamping body 1, and the V-shaped block 8 is arranged at the front end of the pneumatic device I12; the longitudinal clamping structure comprises a pressing block 20 and a pneumatic device II 18, the pneumatic device II 18 is arranged on the front side of the middle part of the clamp body 1, and the pressing block 20 is arranged at the front end of the pneumatic device II 18; a vertical positioning structure is arranged at the vertical intersection of the axes of the transverse positioning structure and the longitudinal positioning structure, and the vertical positioning structure is an adjustable support nail 6; a fixed guide structure is arranged between the pneumatic device I12 and the V-shaped block 8, the fixed guide structure comprises a connecting plate 11 and a V-shaped block 8 guide plate, the connecting plate 11 is arranged on the clamp body 1, the pneumatic device I12 is fixedly arranged on the connecting plate 11, the V-shaped block 8 guide plate is arranged at the front end of the connecting plate 11, and the V-shaped block 8 can slide in the V-shaped block 8 guide plate; the pneumatic device II 18 is fixedly connected with the clamp body 1 through a front supporting frame 15.

Example 1

The positioning device comprises a clamp body 1, a support plate 2, a support nail I4 and an adjustable support nail 6.

The clamp body 1 is provided with symmetrical opening ear seats for clamping the clamp device and the machine tool.

The fixture body 1 is connected with the support frame 3 through the hexagon socket head cap screw 5, is provided with the support nail I4 of bulb on the support frame 3, and the support nail I4 of bulb is used for restricting 1 degree of freedom of back bracket part.

The support plate 2 is connected to the support frame 3 by means of hexagon socket head cap screws 16 for limiting the degrees of freedom of the rear bracket part 2.

The adjustable support nail 6 and the hexagonal nut 7 are arranged on the clamp body 1, the support height of the adjustable support nail 6 can be adjusted, and the adjustable support nail is locked through the hexagonal nut 7 so as to prevent looseness and change the position of a supporting point of the adjustable support nail, and the adjustable support nail is used for limiting 1 degree of freedom of the rear bracket part.

The clamp body 1 is connected with the rear supporting frame 14 through the used hexagon socket head cap screw 16 and the taper pin 17, the rear supporting frame 14 is provided with 2 support nails II 19 with tooth trace heads, and the support nails II 19 with tooth trace heads are used for limiting 2 degrees of freedom of the rear bracket part.

The clamping device comprises a front support 15, a pressing block 20, a V-shaped block 8 and a rear support 14.

The front support 15 is connected with the clamp body 1 through a hexagon socket head cap screw 16 and a taper pin 17, and the pneumatic device II 18 is connected with the front support 15.

The pneumatic device II 18 stretches out of the rod to drive the pressing block 20 to press the rear bracket, and the longitudinal clamping action is completed.

The pneumatic device I12 is connected with the fixture body 1 through a connecting plate 11, and an extending rod of the pneumatic device I12 drives the V-shaped block 8 to move in the V-shaped block upper guide plate 9 and the V-shaped block lower guide plate 10; the V-shaped block 8 contacts with the outer circular surface of the rear bracket to complete the transverse clamping action.

The square tool setting block 13 is connected with the rear supporting frame 14 through a hexagon socket head cap screw 16 and a taper pin 17 and is used for adjusting the position of the tool relative to the workpiece positioning surface.

Assembling the clamp before machining, mounting the clamp body on a workbench of a milling machine, and adjusting the cutter to correspond to the square cutter setting block 13; adjusting the height of the adjustable support nail 6 and shrinking the hexagonal nut 7; the rear bracket part is put into a clamp, the lower small plane position of the rear bracket part is attached to the supporting plate 2, and the side surface and the bottom surface are respectively attached to the supporting nails I4, the adjustable supporting nails 6 and the supporting nails II 19; the pneumatic device I and the pneumatic device II act to respectively drive the V-shaped block 8 and the pressing block 20 to press the rear bracket part. After the milling plane is finished, the pneumatic device I and the pneumatic device II are loosened, the machined workpiece is taken out, the next workpiece is replaced for machining, and the machining of the milling plane of the rear bracket part can be achieved through circulation.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. A rear bracket milling fixture apparatus, comprising: the positioning device and the clamping device are arranged on the clamp body, the positioning device comprises a transverse positioning structure and a longitudinal positioning structure, the transverse positioning structure comprises a supporting frame and a supporting nail I, the supporting frame is fixed on the left side of the clamp body, and the supporting nail I is fixed on the right side surface of the supporting frame; the longitudinal positioning structure comprises a rear supporting frame and a supporting nail II, the rear supporting frame is arranged at the rear side of the middle part of the clamp body, and the supporting nail II is arranged on the inner side surface of the rear supporting frame; the clamping device comprises a transverse clamping structure and a longitudinal clamping structure, the transverse clamping structure comprises a V-shaped block and a pneumatic device I, the pneumatic device I is arranged on the right side of the clamping body, and the V-shaped block is arranged at the front end of the pneumatic device I; the longitudinal clamping structure comprises a pressing block and a pneumatic device II, wherein the pneumatic device II is arranged on the front side of the middle of the clamping body, and the pressing block is arranged at the front end of the pneumatic device II.

2. The rear bracket milling fixture device of claim 1, wherein a vertical positioning structure is provided at a vertical intersection of axes of the lateral positioning structure and the longitudinal positioning structure, the vertical positioning structure being an adjustable support pin.

3. The rear bracket milling fixture device according to claim 1, wherein a fixed guide structure is arranged between the pneumatic device I and the V-shaped block, the fixed guide structure comprises a connecting plate and a V-shaped block guide plate, the connecting plate is arranged on the fixture body, the pneumatic device I is fixedly arranged on the connecting plate, the V-shaped block guide plate is arranged at the front end of the connecting plate, and the V-shaped block can slide in the V-shaped block guide plate.

4. The rear bracket milling fixture device according to claim 1, wherein the pneumatic device II is fixedly connected with the fixture body through a front supporting frame.