CN218169548U

CN218169548U - Milling fixture for precision machining

Info

Publication number: CN218169548U
Application number: CN202222740209.4U
Authority: CN
Inventors: 裴琳
Original assignee: Jinzhong Jingwei Yuxin Machinery Co ltd
Current assignee: Jinzhong Jingwei Yuxin Machinery Co ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2022-12-30
Anticipated expiration: 2032-10-18

Abstract

The utility model discloses a mill's anchor clamps for precision finishing, including the anchor clamps body, the anchor clamps body includes bottom plate and riser, and the guide way has been seted up on riser upper portion, passes the guide way and is provided with the screw rod, and the fixed location dabber that is provided with on the screw rod, the one end of screw rod are provided with lock washer and lock nut, and the other end is provided with opening packing ring and flange nut, and the constant head tank has been seted up to the riser upper end, is provided with the rhombus round pin in the constant head tank. The utility model has the advantages of reasonable design, the positioning core axle passes the sprocket centre bore that has processed the aperture, makes the screw rod together with the firm reliable connection of riser through lock washer and lock nut, has ensured the stability of positioning core axle position, adjusts the sprocket to suitable position, makes the rhombus round pin pass sprocket last aperture, fixes a position and prescribes a limit to the position of sprocket, and the location is accurate, has guaranteed that the keyway adds the stability of sprocket man-hour, has ensured the processingquality of keyway.

Description

Milling fixture for precision machining

Technical Field

The utility model belongs to the technical field of the sprocket processing, especially, relate to a mill anchor clamps for precision finishing.

Background

The sprocket is the important part of reducing gear box, adds man-hour to the sprocket, and the keyway of processing sprocket centre bore one side is main earlier followed and is processed the aperture of sprocket outer fringe through centre bore and keyway location, because there is the error in the location of keyway to lead to the processing position of aperture inaccurate, be not conform to the production specification, caused the waste of raw and other materials, improved manufacturing cost.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a mill worker's anchor clamps for precision finishing.

The utility model discloses a realize like this: a milling fixture for precision machining comprises a fixture body, wherein the fixture body comprises a bottom plate and a vertical plate, the vertical plate is vertically and fixedly arranged at the middle position of the upper end of the bottom plate, the fixture body is in a T-shaped structure, the stability of the fixture body during working is ensured, a guide groove is horizontally formed in the middle position of the upper part of the vertical plate, a screw rod is horizontally arranged through the guide groove and drives a positioning mandrel to move up and down along the guide groove, a limiting shaft is fixedly arranged on the screw rod in the guide groove, the outer diameter of the limiting shaft is the same as the width of the guide groove, the screw rod is prevented from horizontally deflecting in the guide groove, the screw rod is ensured to stably move up and down in the guide groove, the positioning mandrel is fixedly arranged on the screw rod, the positioning mandrel penetrates through a center hole of a chain wheel, the position of the chain wheel is limited, the reliable connection of the positioning mandrel and the chain wheel is ensured, a locking washer and a locking nut are arranged at one end of the screw rod, after the position of the screw rod is adjusted, the screw rod is firmly and reliably connected with the vertical plate through the locking washer and the locking nut, so that the position stability of the positioning mandrel is ensured, the other end of the screw rod is provided with the first opening washer, the second opening washer and the flange nut, the chain wheel is sleeved on the positioning mandrel, the first opening washer and the second opening washer are sleeved on the screw rod at the two sides of the chain wheel to prevent the chain wheel from being damaged, the flange nut is screwed to tightly abut the vertical plate, the first opening washer, the chain wheel and the second opening washer together to prevent the chain wheel from moving, the middle position at the upper end of the vertical plate is horizontally provided with a positioning groove, the positioning groove is communicated with the outer parts of the two sides of the vertical plate, a diamond pin is fixedly arranged in the positioning groove, the diamond pin is arranged in parallel with the screw rod, and one end of the diamond pin, which is close to the positioning mandrel, exceeds the positioning groove, the diamond-shaped pin penetrates through a small hole in the chain wheel to further limit the position of the chain wheel, and the stability of the chain wheel during machining is guaranteed.

Preferably, the lower extreme symmetry of bottom plate is fixed and is provided with the navigation key, when placing the anchor clamps body on the lathe mesa, fixes a position through the navigation key to the position of anchor clamps body on the lathe mesa, guarantees the quick assigned position of placing the anchor clamps body on the lathe mesa.

Preferably, mounting grooves are formed in two ends of the bottom plate, bolts are arranged in the mounting grooves, penetrate through the mounting grooves and are fixedly connected with the machine tool table board, and the reliable connection between the clamp body and the machine tool table board is guaranteed.

Preferably, rib plates are symmetrically and fixedly arranged between the vertical plate and the bottom plate on one side of the locking nut, so that the strength of the clamp body is improved, and the service life of the clamp body is guaranteed.

Preferably, the center of the screw, the center of the limiting shaft and the center of the positioning mandrel are on the same straight line.

Preferably, the outer diameter of the positioning mandrel is larger than the width of the guide groove.

The utility model has the advantages that: the utility model has the advantages of reasonable design, the positioning core axle passes the sprocket centre bore that has processed the aperture, makes the screw rod together with the firm reliable connection of riser through lock washer and lock nut, has ensured the stability of positioning core axle position, adjusts the sprocket to suitable position, makes the rhombus round pin pass sprocket last aperture, fixes a position and prescribes a limit to the position of sprocket, and the location is accurate, has guaranteed that the keyway adds the stability of sprocket man-hour, has ensured the processingquality of keyway.

Drawings

Fig. 1 is a schematic sectional structure of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic structural view of one side of the locking nut of the present invention;

FIG. 4 is a schematic structural view of one side of the flange nut of the present invention;

FIG. 5 is a schematic top view of the clamp body;

FIG. 6 is a schematic structural view of the sprocket;

in the figure: 1. a clamp body; 2. a base plate; 3. a vertical plate; 4. a guide groove; 5. a screw; 6. a limiting shaft; 7. positioning the mandrel; 8. a lock washer; 9. locking the nut; 10. a first split washer; 11. a second split washer; 12. a flange nut; 13. positioning a groove; 14. a diamond pin; 15. a positioning key; 16. mounting grooves; 17. a bolt; 18. a rib plate; 19. a sprocket; 20. a keyway; 21. and (4) a small hole.

Detailed Description

In order to understand the technical solution of the present invention more clearly, the present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1-6, a milling fixture for precision machining comprises a fixture body 1, the fixture body 1 comprises a bottom plate 2 and a vertical plate 3, the vertical plate 3 is vertically and fixedly arranged at the middle position of the upper end of the bottom plate 2, so that the fixture body 1 is in a T-shaped structure, the stability of the fixture body 1 during operation is ensured, the lower end of the bottom plate 2 is symmetrically and fixedly provided with a positioning key 15, when the fixture body 1 is placed on the table top of a machine tool, the position of the fixture body 1 on the table top of the machine tool is positioned through the positioning key 15, the rapid placement of the fixture body 1 at a designated position on the table top of the machine tool is ensured, two ends of the bottom plate 2 are provided with mounting grooves 16, bolts 17 are arranged in the mounting grooves 16, the bolts 17 pass through the mounting grooves 16 and are fixedly connected with the table top of the machine tool, the reliable connection between the fixture body 1 and the table top of the machine tool is ensured, the middle position of the upper part of the vertical plate 3 is horizontally provided with a guide groove 4, a screw rod 5 is horizontally arranged through the guide groove 4, the screw rod 5 drives the positioning mandrel 7 to move up and down along the guide groove 4, a limiting shaft 6 is fixedly arranged on the screw rod 5 in the guide groove 4, the outer diameter of the limiting shaft 6 is the same as the width of the guide groove 4, horizontal deflection of the screw rod 5 in the guide groove 4 is avoided, the screw rod 5 is ensured to move up and down stably in the guide groove 4, the positioning mandrel 7 is fixedly arranged on the screw rod 5, the positioning mandrel 7 penetrates through a center hole of the chain wheel 19 to limit the position of the chain wheel 19, the reliable connection of the positioning mandrel 7 and the chain wheel 19 is ensured, the outer diameter of the positioning mandrel 7 is larger than the width of the guide groove 4, the center of the screw rod 5, the center of the limiting shaft 6 and the center of the positioning mandrel 7 are on the same straight line, and one end of the screw rod 5 is provided with a locking washer 8 and a locking nut 9, after the position of the screw rod 5 is adjusted, the screw rod 5 is firmly and reliably connected with the vertical plate 3 through the locking washer 8 and the locking nut 9, so that the position stability of the positioning mandrel 7 is ensured, the rib plate 18 is symmetrically and fixedly arranged between the vertical plate 3 and the bottom plate 2 on one side of the locking nut 9, the strength of the clamp body 1 is improved, and the service life of the clamp body 1 is ensured, the other end of the screw rod 5 is provided with the first opening washer 10, the second opening washer 11 and the flange nut 12, the chain wheel 19 is sleeved on the positioning mandrel 7, the first opening washer 10 and the second opening washer 11 are sleeved on the screw rod 5 on two sides of the chain wheel 19, the chain wheel 19 is prevented from being damaged, the flange nut 12 is screwed, so that the vertical plate 3, the first opening washer 10, the chain wheel 19 and the second opening washer 11 are tightly abutted together, the position of the chain wheel 19 is prevented from moving, the positioning groove 13 is horizontally arranged at the middle position of the upper end of the vertical plate 3, the positioning groove 13 is communicated with the two sides of the vertical plate 3, the diamond-shaped pin 14 is fixedly arranged in the positioning groove 13, and the diamond-shaped pin 14 is arranged in parallel with the screw rod 5, one end of the diamond-shaped pin 14 is close to ensure that the positioning pin 19 passes through the positioning wheel 19, and the diamond-shaped sprocket wheel 19, and the stability of the positioning wheel 19 is further guarantee that the chain wheel 19, and the stability of the chain wheel 19 is further processed, and the chain wheel 21.

Firstly, processing a small hole 21 on a chain wheel 19, then enabling a positioning mandrel 7 to penetrate through a central hole of the chain wheel 19, enabling a screw rod 5 and a vertical plate 3 to be firmly and reliably connected together through a locking washer 8 and a locking nut 9, adjusting the chain wheel 19 to a proper position, enabling a diamond-shaped pin 14 to penetrate through the small hole 21 on the chain wheel 19, ensuring the position stability of the chain wheel 19, adjusting the positions of a first opening washer 10 and a second opening washer 11, screwing a flange nut 12, and processing a key groove 20 on the chain wheel 19 along a gap of the second opening washer 11 by mechanical equipment.

The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.

Claims

1. The utility model provides a mill's anchor clamps for precision finishing, a serial communication port, including the anchor clamps body, the anchor clamps body includes bottom plate and riser, the vertical fixed middle part position that sets up in the bottom plate upper end of riser, the guide way has been seted up to the middle part position level on riser upper portion, passes the guide way level is provided with the screw rod, is located fixed being provided with spacing axle on the screw rod of guide way, the external diameter of spacing axle is the same with the width of guide way, the fixed location dabber that is provided with on the screw rod, the one end of screw rod is provided with lock washer and lock nut, the other end of screw rod is provided with first opening packing ring, second opening packing ring and flange nut, the constant head tank has been seted up to the middle part position level of riser upper end, the constant head tank is linked together with the both sides outside of riser, the constant head tank internal fixation is provided with the rhombus round pin, the rhombus round pin surpasss the constant head tank with screw rod parallel arrangement and the one end that the rhombus round pin is close to the location dabber.

2. A mill clamp for precision machining according to claim 1, characterized in that the lower end of the base plate is symmetrically and fixedly provided with a positioning key.

3. A mill clamp for precision finishing according to claim 1, wherein mounting slots are provided at both ends of the base plate, and bolts are provided in the mounting slots.

4. A milling fixture for precision finishing as claimed in claim 1, wherein a rib is symmetrically and fixedly provided between the riser and the base plate on one side of the lock nut.

5. A mill clamp for precision machining according to claim 1, wherein the center of the screw, the center of the limit shaft and the center of the positioning spindle are in a straight line.

6. A mill clamp for precision machining according to claim 1, wherein the outer diameter of the positioning spindle is greater than the width of the guide slot.