CN216096592U

CN216096592U - Screw hexagonal milling device

Info

Publication number: CN216096592U
Application number: CN202121961157.2U
Authority: CN
Inventors: 曲波; 任胜军
Original assignee: Xiangyang Suzhan Machinery Industry Co ltd
Current assignee: Xiangyang Suzhan Machinery Industry Co ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-03-22
Anticipated expiration: 2031-08-20

Abstract

The utility model relates to the technical field of bolt hexagonal machining, and discloses a screw hexagonal milling device which comprises a milling machine, wherein a positioning V block is arranged on a workbench of the milling machine, a pressing device is arranged above the positioning V block, an angle adjusting device is arranged on one side of the positioning V block, a double-sided milling cutter head assembly is also arranged on a main shaft of the milling machine, and a V-shaped surface on the positioning V block can be suitable for positioning bolts with different diameters, so that the device has better universality, can realize a clamping effect together with the pressing device, and has good stability and high machining precision; in addition, the angle adjusting device and the double-sided milling cutter head assembly are matched with each other, the processing of the bolt hexagonal is achieved jointly, two disc-shaped milling cutter blades are coaxially arranged at the lower end of the cutter bar in the double-sided milling cutter head assembly, and two planes can be milled at each time, so that the angle adjusting device only needs to adjust two angles to complete the processing of the bolt hexagonal, the processing efficiency is higher, and the milling effect is good.

Description

Screw hexagonal milling device

Technical Field

The utility model relates to the technical field of bolt hexagonal machining, in particular to a screw hexagonal milling device.

Background

In traditional course of working, the preparation of screw, nut hexagon head relies on hot briquetting more, however, to some middle and small batch volume nonstandard spare, the preparation mould cost is higher, and technology is comparatively complicated, is unfavorable for the rapid production of product, consequently truns into to adopt ordinary milling machine to carry out single processing more, and the hexagon head manufacturing approach of hexagon head bolt for current steam turbine adopts dividing head (holding) chuck to press from both sides tightly, and 60 graduation once need mill through six times and accomplish the hexagon head processing of bolt, and this kind of processing approach is inefficient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a screw hexagonal milling device which has the advantages of high processing efficiency, high processing precision, strong universality and good stability.

The technical purpose of the utility model is realized by the following technical scheme:

the screw hexagonal milling device comprises a milling machine, wherein a positioning V block is arranged on a workbench of the milling machine, a pressing device is arranged above the positioning V block, an angle adjusting device is arranged on one side of the positioning V block, and a double-sided milling cutter head component is further arranged on a main shaft of the milling machine.

Through adopting above-mentioned technical scheme, the location of the bolt of different diameters not only can be applicable to the V-arrangement face on the V piece of location for the V-arrangement face of the better location V piece of commonality of device still realizes pressing from both sides tight effect with closing device jointly, and stability is good, and the machining precision is high, in addition, the angle adjusting device that one side of location V piece set up is used for carrying out angle modulation to the bolt hexagonal, thereby realize the purpose of bolt hexagonal processing, utilize two-sided milling tool bit subassembly to realize two-sided milling, the machining efficiency of bolt hexagonal has been improved greatly.

The utility model is further provided with: the pressing device comprises a supporting plate and a pressing bolt, the supporting plate is fixed on the positioning V-shaped block and is in threaded connection with the pressing bolt, and the lower end of the pressing bolt is opposite to the central axis of the V-shaped surface of the positioning V-shaped block.

Through adopting above-mentioned technical scheme, through rotatory clamp bolt for clamp bolt is along self axis direction up-and-down motion, thereby will be located the bolt pole portion on the location V piece and compress tightly or loosen.

The utility model is further provided with: the angle adjusting device comprises a fluted disc, a threaded hole matched with the threads of the rod part of the bolt is formed in the axis of the fluted disc, gear teeth are arranged on the circumference of the fluted disc, and the fluted disc is connected with the rotary driving part through the gear teeth.

Through adopting above-mentioned technical scheme, the rotation driving portion drive fluted disc is rotatory, and the bolt rod portion that the fluted disc drove at rotatory in-process is rotatory to the realization is treated the angle modulation of processing bolt hexagon.

The utility model is further provided with: the rotary driving part comprises a driving motor, the driving motor is fixed on the workbench, a driving gear is arranged on an output shaft of the driving motor, and the driving gear is meshed with gear teeth on the fluted disc.

Through adopting above-mentioned technical scheme, driving motor drives drive gear rotatory, and drive gear rotation drives the fluted disc rotation.

The utility model is further provided with: the rotary driving part comprises a driving cylinder which is fixed on the workbench, an output shaft of the driving cylinder is connected with a rack, the rack is connected with the workbench in a sliding manner, and the rack is meshed with gear teeth on a fluted disc.

Through adopting above-mentioned technical scheme, thereby drive actuating cylinder concertina movement and promote the rack and advance or retreat along the workstation, the rack is advanced or is driven the fluted disc rotation when retreating.

The utility model is further provided with: the positioning V block is characterized by further comprising an axial positioning block I and an axial positioning block II, the axial positioning block I is used for axially positioning the hexagonal bolt, the axial positioning block II is used for positioning the fluted disc, and the axial positioning block I and the axial positioning block II both comprise holes matched with the rod portion of the bolt.

Through adopting above-mentioned technical scheme, a pair of bolt hexagonal of axial positioning piece is fixed a position for keep the certain distance between bolt hexagonal and the location V piece, consequently, when the two-sided milling cutter head subassembly when carrying out the hexagonal plane add man-hour with keep certain distance between the location V piece, prevent that the blade of two-sided milling cutter head subassembly from touching the location V piece and causing the problem of damaging anchor clamps, the position of the two pairs of fluted discs of axial positioning piece is fixed a position, can guarantee just in time with the drive gear meshing in the rotation driving portion behind fluted disc and the bolt rod portion connection.

The utility model is further provided with: the holes matched with the bolt rod parts of the first axial positioning block and the second axial positioning block are respectively provided with a groove penetrating along one side, and the width of each groove is matched with the diameter of the bolt rod part.

Through adopting above-mentioned technical scheme, set up along the groove that one side runs through the bolt rod portion complex hole at axial locating piece one and axial locating piece two for axial locating piece one and axial locating piece two can realize quick and bolt rod portion cooperation or dismantle, thereby further improved work efficiency.

The utility model is further provided with: the double-sided milling cutter head component comprises a cutter bar, the upper end of the cutter bar is connected with a main shaft of a milling machine, two disc-shaped milling cutter blades are coaxially arranged at the lower end of the cutter bar, the specifications of the two disc-shaped milling cutter blades are equal, and the distance between the two disc-shaped milling cutter blades is equal to the distance between two hexagonal parallel planes of the bolt.

Through adopting above-mentioned technical scheme, there are two disc-type milling cutter pieces at the lower extreme coaxial arrangement of cutter arbor, can realize two planes of milling at every turn, therefore angle adjusting device only need adjust twice angle and can accomplish the processing of bolt hexagonal, and machining efficiency is higher, mills and processes effectually.

The utility model has the beneficial effects that:

1. the V-shaped surface on the positioning V block can be suitable for positioning bolts with different diameters, so that the universality of the device is better, the V-shaped surface of the positioning V block can also realize the clamping effect together with a pressing device, the stability is good, the processing precision is high, in addition, the angle adjusting device and the double-sided milling cutter head assembly are mutually matched, the processing of the bolt hexagon is jointly realized, and the processing efficiency of the bolt hexagon is greatly improved.

2. According to the double-sided milling cutter head assembly, the two disc-shaped milling cutter blades are coaxially arranged at the lower end of the cutter bar, and two planes can be milled at one time, so that the angle adjusting device can complete the processing of the bolt hexagon only by adjusting angles twice, the processing efficiency is higher, and the milling effect is good.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic overall structure diagram of a screw hexagonal milling device according to a first embodiment of the present invention.

Fig. 2 is a partially enlarged schematic view of a in fig. 1.

Fig. 3 is a schematic structural diagram of a bolt rod part and a bolt hexagon after milling in the screw hexagonal milling device.

Fig. 4 is a schematic structural diagram of an angle adjusting device in the screw hexagonal milling device.

FIG. 5 is a schematic structural diagram of an axial positioning block I and an axial positioning block II in the screw hexagonal milling device.

FIG. 6 is a schematic overall structure diagram of a first screw hexagonal milling device according to the present invention.

Fig. 7 is a partially enlarged schematic view of B in fig. 6.

In the figure, 1, a milling machine; 2. a work table; 3. positioning the V block; 4. a pressing device; 41. a support plate; 42. a hold-down bolt; 5. an angle adjusting device; 51. a fluted disc; 52. a threaded hole; 53. gear teeth; 6. a double-sided milling cutter head assembly; 61. a cutter bar; 62. a disc-shaped milling insert; 7. a bolt shank; 8. a rotation driving section; 81. a drive motor; 82. a drive gear; 83. a driving cylinder; 84. a rack; 9. hexagonal bolts; 10. a first axial positioning block; 11. a second axial positioning block; 12. an aperture; 13. a groove.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.

Example one

As shown in fig. 1 and 2, the screw hexagonal milling device comprises a milling machine 1, a positioning V-block 3 is arranged on a worktable 2 of the milling machine 1, a pressing device 4 is arranged above the positioning V-block 3, an angle adjusting device 5 is arranged on one side of the positioning V-block 3, a double-sided milling cutter head assembly 6 is further arranged on a main shaft of the milling machine 1, a bolt rod part 7 is positioned through the positioning V-block 3, a V-shaped surface on the positioning V-block 3 can be suitable for positioning bolts with different diameters, so that the device has better universality, the V-shaped surface of the positioning V-block 3 and the pressing device 4 jointly realize a clamping effect, the stability is good, the processing precision is high, in addition, the angle adjusting device 5 arranged on one side of the positioning V-block 3 is used for carrying out angle adjustment on a bolt hexagonal 9, thereby realizing the purpose of processing the bolt hexagonal 9, and realizing double-sided milling by utilizing the double-sided milling cutter head assembly, the processing efficiency of bolt hexagon 9 has been improved greatly.

Specifically, as shown in fig. 2, the pressing device 4 includes a supporting plate 41 and a pressing bolt 42, the supporting plate 41 is fixed on the positioning V-block 3, the supporting plate 41 is in threaded connection with the pressing bolt 42, a lower end of the pressing bolt 42 is opposite to a central axis of a V-shaped surface of the positioning V-block 3, and by rotating the pressing bolt 42, the pressing bolt 42 moves up and down along a self axis direction, so as to press or loosen the bolt rod portion 7 on the positioning V-block 3, when milling a surface of the bolt hexagon 9, the lower end of the pressing bolt 42 presses the bolt rod portion 7, and when the bolt hexagon 9 needs to be angularly adjusted or is processed to be unloaded, the lower end of the pressing bolt 42 is reversely rotated to loosen the bolt rod portion 7.

Specifically, as shown in fig. 2 and 4, the angle adjusting device 5 includes a fluted disc 51, a threaded hole 52 that is in threaded matching with the bolt rod portion 7 is arranged at the axis of the fluted disc 51, gear teeth 53 are arranged on the circumference of the fluted disc 51, the fluted disc 51 is connected with the rotary driving portion 8 through the gear teeth 53, the rotary driving portion 8 drives the fluted disc 51 to rotate, and the bolt rod portion 7 that the fluted disc 51 drives in the rotating process rotates, so that the angle adjustment of the bolt hexagonal 9 to be processed is realized.

Specifically, as shown in fig. 2, the rotation driving portion 8 includes a driving motor 81, the driving motor 81 is fixed on the worktable 2, a driving gear 82 is disposed on an output shaft of the driving motor 81, the driving gear 82 is engaged with the gear teeth 53 on the toothed disc 51, the driving motor 81 drives the driving gear 82 to rotate, and the driving gear 82 drives the toothed disc 51 to rotate.

Furthermore, two sides of the positioning V block 3 further comprise a first axial positioning block 10 for axially positioning the bolt hexagon 9 and a second axial positioning block 11 for positioning the fluted disc 51, the first axial positioning block 10 and the second axial positioning block 11 have the same structure, as shown in fig. 5, the first axial positioning block 10 and the second axial positioning block 11 each include a hole 12 engaged with the bolt rod portion 7, and the first axial positioning block 10 positions the bolt hexagon 9, so that a certain distance is maintained between the bolt hexagon 9 and the positioning V-block 3, and therefore, when the double-sided milling cutter head assembly 6 is machined on a hexagonal plane, a certain distance is kept between the double-sided milling cutter head assembly and the positioning V block 3, the problem that the clamp is damaged due to the fact that a blade of the double-sided milling cutter head assembly 6 touches the positioning V block 3 is solved, the position of the fluted disc 51 is positioned by the second axial positioning block 11, and the fluted disc 51 can be guaranteed to be just meshed with the driving gear 82 in the rotary driving part 8 after being connected with the bolt rod part 7.

Further, axial positioning piece one 10 and axial positioning piece two 11 all are equipped with along one side through groove 13 with bolt rod portion 7 complex hole 12, the width and the bolt rod portion 7 diameter phase-match of groove 13, through axial positioning piece one 10 and axial positioning piece two 11 with bolt rod portion 7 complex hole setting along one side through groove 13 for axial positioning piece one 10 and axial positioning piece two 11 can realize quick with bolt rod portion cooperation or dismantle, thereby further improved work efficiency.

Specifically, double-sided milling cutter head subassembly 6 includes cutter arbor 61, the upper end of cutter arbor 61 is connected with the main shaft of milling machine 1, two disc type milling cutter piece 62 of lower extreme coaxial arrangement of cutter arbor 61, two disc type milling cutter piece 62 specifications are equal, interval between two disc type milling cutter piece 62 equals with the distance between two parallel planes of bolt hexagonal 9, there are two disc type milling cutter piece 62 at the lower extreme coaxial arrangement of cutter arbor 61, can realize milling two planes at every turn, consequently angle adjusting device 5 only need adjust twice angle and can accomplish the processing of bolt hexagonal 9, bolt hexagonal 9 after the processing is accomplished is as shown in fig. 3, machining efficiency is higher, it is effectual to mill.

Example two

The second embodiment is different from the first embodiment in the structure of the rotary driving unit 8, as shown in fig. 6 and 7, in the present embodiment, the rotary driving unit 8 includes a driving cylinder 83, the driving cylinder 83 is fixed on the table 2, an output shaft of the driving cylinder 83 is connected to a rack 84, the rack 84 is slidably connected to the table 2, the rack 84 is engaged with the gear teeth 53 on the toothed disc 51, the driving cylinder 83 extends and retracts to push the rack 84 to move forward or backward along the table 2, and the rack 84 rotates the toothed disc 51 when moving forward or backward.

Claims

1. Screw rod hexagonal milling unit, including milling machine (1), its characterized in that: be equipped with location V piece (3) on workstation (2) of milling machine (1), the top of location V piece (3) is equipped with closing device (4), one side of location V piece (3) is equipped with angle adjusting device (5), still be equipped with two-sided milling cutter head subassembly (6) on the main shaft of milling machine (1).

2. The threaded rod hexagonal milling device of claim 1, characterized in that: the pressing device (4) comprises a supporting plate (41) and a pressing bolt (42), the supporting plate (41) is fixed on the positioning V block (3), the supporting plate (41) is in threaded connection with the pressing bolt (42), and the lower end of the pressing bolt (42) is opposite to the central axis of the V profile of the positioning V block (3).

3. The threaded rod hexagonal milling device of claim 1, characterized in that: angle adjusting device (5) include fluted disc (51), fluted disc (51) axle center is equipped with screw hole (52) with bolt pole portion (7) screw thread matching, be equipped with teeth of a cogwheel (53) on the circumference of fluted disc (51), fluted disc (51) are connected with rotation driving portion (8) through teeth of a cogwheel (53).

4. The threaded rod hexagonal milling device of claim 3, characterized in that: rotation driving portion (8) include driving motor (81), driving motor (81) are fixed on workstation (2), be equipped with drive gear (82) on the output shaft of driving motor (81), gear teeth (53) meshing on drive gear (82) and fluted disc (51).

5. The threaded rod hexagonal milling device of claim 3, characterized in that: the rotary driving part (8) comprises a driving cylinder (83), the driving cylinder (83) is fixed on the workbench (2), an output shaft of the driving cylinder (83) is connected with a rack (84), the rack (84) is in sliding connection with the workbench (2), and the rack (84) is meshed with gear teeth (53) on the fluted disc (51).

6. The threaded rod hexagonal milling device of claim 1, characterized in that: the two sides of the positioning V block (3) further comprise a first axial positioning block (10) used for axially positioning the bolt hexagonal (9) and a second axial positioning block (11) used for positioning the fluted disc (51), and the first axial positioning block (10) and the second axial positioning block (11) both comprise holes (12) matched with the bolt rod parts (7).

7. The threaded rod hexagonal milling device of claim 6, characterized in that: the hole (12) matched with the bolt rod part (7) through the axial positioning block I (10) and the axial positioning block II (11) is provided with a groove (13) penetrating along one side, and the width of the groove (13) is matched with the diameter of the bolt rod part (7).

8. The threaded rod hexagonal milling device of claim 1, characterized in that: two-sided milling cutter head subassembly (6) include cutter arbor (61), the upper end and the main shaft of milling machine (1) of cutter arbor (61) are connected, the lower extreme coaxial arrangement of cutter arbor (61) has two disc type milling cutter piece (62), and two disc type milling cutter piece (62) specifications are equal, and the interval between two disc type milling cutter piece (62) equals with the distance between two parallel planes of bolt hexagonal (9).