CN216989932U

CN216989932U - Novel universal multi-size tensioning type mandrel fixture

Info

Publication number: CN216989932U
Application number: CN202220330513.9U
Authority: CN
Inventors: 张帆; 刘凯华; 李智; 王春雨; 赵保佳; 刘凯; 田金宝; 张殿杰; 王小虎
Original assignee: Qinhuangdao Dicastal Xionglong Wheels Co Ltd
Current assignee: Qinhuangdao Dicastal Xionglong Wheels Co Ltd
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-07-19
Anticipated expiration: 2032-02-18

Abstract

The utility model relates to the technical field of hub machining auxiliary equipment, and discloses a novel multi-size universal tensioning type mandrel fixture which solves the problems that a mandrel used at the present stage is fixed in size, when workpieces of different wheel types or different sizes are machined, a mandrel with a size corresponding to the mandrel needs to be replaced for central clamping, replacement time is long, and machining efficiency is affected; the step expansion sleeve is arranged, so that the expansion sleeve can be expanded aiming at wheel types with different central hole sizes, the expansion sleeve main body is suitable for most wheel types, and the expansion sleeve main body on the clamp bottom plate does not need to be replaced when different wheel types are replaced, so that the time for replacing the wheel type is effectively saved, and the processing efficiency is improved.

Description

Novel universal multi-size tensioning type mandrel fixture

Technical Field

The utility model belongs to the technical field of auxiliary equipment for hub machining, and particularly relates to a novel universal multi-size tension type mandrel fixture.

Background

The mandrel fixture is suitable for the machining industries of hubs and other disc workpieces, and when the fixture is used, the center hole of the workpiece is clamped on the mandrel for centering and positioning.

The size of the mandrel used at the present stage is fixed, when workpieces of different wheel types or different sizes are processed, the mandrel with the size corresponding to the mandrel needs to be replaced to carry out center clamping, so that the replacement time is long, and the processing efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides a novel multi-size universal tension type mandrel fixture, which effectively solves the problems that the mandrel used in the prior art is fixed in size, and when workpieces of different wheel types or different sizes are machined, the mandrel with the corresponding size needs to be replaced for central clamping, so that the replacement time is long, and the machining efficiency is influenced.

In order to achieve the purpose, the utility model provides the following technical scheme: novel general tension type dabber fixture of many sizes, including the cover main part that rises, the bottom of the cover main part that rises is connected with the fixture bottom plate, the top of fixture bottom plate is equipped with the cover and locates the outside connecting seat of the cover main part that rises, the cover main part that rises is by the pull rod screw, the pull rod, the step rises the cover, the awl axle, oil pipe connects, hydraulic cylinder main part and fastening device constitute, the hydraulic cylinder main part is located the inside of connecting seat, one side of hydraulic cylinder main part is equipped with oil pipe and connects, the one end of hydraulic cylinder main part is equipped with the step cover that rises, the mounting groove has been seted up to the inside of step cover that rises, the inside of hydraulic cylinder main part is equipped with the pull rod that extends to the mounting groove inside, and the step rises and pass through pull rod screwed connection between cover and the pull rod, the outside cover of pull rod is equipped with the awl axle, the awl axle is located the one side that the step rises the cover, and rise between the cover through fastening device with the step and be connected.

Preferably, the holding tank has been seted up to the inside of pull rod, and the logical groove that is linked together with the holding tank has been seted up to the inside of pull rod, and leads to the inside that the groove extends to the pull rod screw.

Preferably, the bottom end of the step expansion sleeve is provided with a connection groove communicated with the installation groove, and the top end of the conical shaft is provided with a connection ring arranged in the connection groove.

Preferably, fastening ports are symmetrically formed in the inner portion of the connecting ring and the inner portion of the connecting groove.

Preferably, fastening device includes rotation axis, steady axle, turbine, a worm section of thick bamboo, fixture block and draw-in groove, and the inside interlude that leads to the groove has the rotation axis, and the bottom of rotation axis extends to the interior bottom end of holding tank, and the cover is equipped with the turbine on the rotation axis, and the inner wall of holding tank is all rotated and is connected with steady axle, and the outside cover of steady axle is equipped with the worm section of thick bamboo of being connected with the turbine meshing, and the one end of a worm section of thick bamboo extends to the inside of fastening mouthful, and the bilateral symmetry of steady axle is equipped with the fixture block, and the draw-in groove with fixture block sliding connection is seted up to the inner wall of a worm section of thick bamboo.

Preferably, the inner wall of the through groove is provided with a bearing connected with the rotating shaft and the pull rod screw.

Compared with the prior art, the utility model has the beneficial effects that:

(1) in the work, the step expansion sleeve is arranged, so that the expansion sleeve can be expanded aiming at wheel types with different central hole sizes, the expansion sleeve main body is suitable for most wheel types, and the expansion sleeve main body on the clamp bottom plate does not need to be replaced when different wheel types are replaced, the time for replacing the wheel types is effectively saved, and the processing efficiency is improved;

(2) through the design of rotation axis, steady axis, turbine, a worm section of thick bamboo, fixture block and draw-in groove, realize the step cover of rising and the zonulae occludens of awl axle, and then for the step cover of rising and the dismouting of awl axle bring the convenience, avoid the step cover of rising and the synchronous change of awl axle when the step cover of rising destroys, the saving of effectual realization resource.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

In the drawings:

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic structural view of the expansion sleeve body of the present invention;

FIG. 3 is a schematic view of a partial cross-sectional structure of the body of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 3 according to the present invention;

FIG. 5 is a partial top view of the interior of the receiving groove of the present invention;

in the figure: 1. a draw bar screw; 2. a pull rod; 3. step expansion sleeves; 4. a conical shaft; 5. an oil pipe joint; 6. a hydraulic cylinder body; 7. a fixture base plate; 8. a connecting seat; 9. an expansion sleeve main body; 10. a bearing; 11. a through groove; 12. an adaptor ring; 13. mounting grooves; 14. a joining groove; 15. a fastening opening; 16. accommodating a tank; 17. a rotating shaft; 18. a stabilizing shaft; 19. a turbine; 20. a worm cylinder; 21. a clamping block; 22. a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the first embodiment, as shown in fig. 1 to 5, the utility model includes an expanding sleeve main body 9, a clamp bottom plate 7 is connected to the bottom end of the expanding sleeve main body 9, a connecting seat 8 sleeved outside the expanding sleeve main body 9 is arranged at the top end of the clamp bottom plate 7, the expanding sleeve main body 9 is composed of a pull rod screw 1, a pull rod 2, a step expanding sleeve 3, a taper shaft 4, an oil pipe joint 5, a hydraulic cylinder main body 6 and a fastening mechanism, the hydraulic cylinder main body 6 is located inside the connecting seat 8, the oil pipe joint 5 is arranged at one side of the hydraulic cylinder main body 6, the step expanding sleeve 3 is arranged at one end of the hydraulic cylinder main body 6, an installation groove 13 is arranged inside the step expanding sleeve 3, the pull rod 2 extending into the installation groove 13 is arranged inside the hydraulic cylinder main body 6, the step expanding sleeve 3 is connected with the pull rod 2 through the pull rod screw 1, the taper shaft 4 is sleeved outside the pull rod 2, the taper shaft 4 is located at one side of the step expanding sleeve 3, the conical shaft 4 is connected with the step expansion sleeve 3 through a fastening mechanism;

the device is driven by hydraulic pressure, when wheel types with different central hole diameters are replaced, the pull rod 2 is pushed through the hydraulic oil cylinder main body 6, the conical shaft 4 is pushed through the pull rod 2, the conical shaft 4 then drives the step expansion sleeve 3 to move, the step expansion sleeve 3 can conveniently expand and clamp a blank, the wheel types with different central hole sizes can be tensioned through the tensioning step type of the step expansion sleeve 3, and the tensioning mandrel can be suitable for the central hole diameters of most wheel types.

In the second embodiment, based on the first embodiment, as shown in fig. 3, 4 and 5, an accommodating groove 16 is formed in the inner portion of the pull rod 2, a through groove 11 communicated with the accommodating groove 16 is formed in the inner portion of the pull rod 2, the through groove 11 extends to the inner portion of the pull rod screw 1, a connecting groove 14 communicated with the mounting groove 13 is formed in the bottom end of the step expansion sleeve 3, a connecting ring 12 mounted in the connecting groove 14 is arranged at the top end of the conical shaft 4, fastening ports 15 are symmetrically formed in the inner portion of the connecting ring 12 and the inner portion of the connecting groove 14, the fastening mechanism includes a rotating shaft 17, a stabilizing shaft 18, a worm cylinder 20, a clamping block 21 and a clamping groove 22, the rotating shaft 17 is inserted in the through groove 11, the bottom end of the rotating shaft 17 extends to the inner bottom end of the accommodating groove 16, the rotating shaft 17 is sleeved with the worm cylinder 19, the inner wall of the accommodating groove 16 is rotatably connected with the stabilizing shaft 18, the worm cylinder 20 engaged with the worm cylinder 19 is sleeved on the outer portion of the stabilizing shaft 18, one end of the worm cylinder 20 extends into the fastening opening 15, two sides of the stabilizing shaft 18 are symmetrically provided with a fixture block 21, the inner wall of the worm cylinder 20 is provided with a clamping groove 22 in sliding connection with the fixture block 21, the inner wall of the through groove 11 is provided with a bearing 10 connected with the rotating shaft 17 and the draw bar screw 1, and here, it should be noted that the stabilizing shaft 18 and the turbine 19 are symmetrically arranged by taking the axis of the rotating shaft 17 as a center;

the connecting ring 12 at the top end of the conical shaft 4 is inserted into the connecting groove 14, then after the pull rod 2 and the step expansion sleeve 3 are tightly connected through the pull rod screw 1, the rotating shaft 17 is rotated to drive the worm wheel 19 to rotate, the worm wheel 19 can drive the worm cylinder 20 to rotate through the meshing connection relationship between the worm wheel 19 and the worm cylinder 20, the worm cylinder 20 can horizontally move outside the stabilizing shaft 18 when rotating, the clamping groove 22 on the worm cylinder 20 can slide on the clamping block 21, one end of the worm cylinder 20 can move into the fastening opening 15, and then the connecting ring 12 and the connecting groove 14 are connected, so that the connection tightness between the conical shaft 4 and the step expansion sleeve 3 is improved, convenience is effectively brought to the dismounting and mounting of the step expansion sleeve 3 and the conical shaft 4, and convenience is brought to the replacement of the step expansion sleeve 3.

The working principle is as follows: when the device works, the conical shaft 4 and the step expansion sleeve 3 are sleeved outside the pull rod 2, the pull rod 2 extends into the mounting groove 13 inside the step expansion sleeve 3, the step expansion sleeve 3 and the pull rod 2 are fixed through the pull rod screw 1, the connecting ring 12 at the top end of the conical shaft 4 is inserted into the connecting groove 14, then after the pull rod 2 and the step expansion sleeve 3 are tightly connected through the pull rod screw 1, the rotating shaft 17 is rotated to drive the turbine 19 to rotate through the rotation of the rotating shaft 17, the turbine 19 drives the worm cylinder 20 to rotate through the meshing connection relationship between the turbine 19 and the worm cylinder 20, the worm cylinder 20 can horizontally move outside the stabilizing shaft 18 when rotating, the clamping groove 22 on the worm cylinder 20 can slide on the clamping block 21, one end of the worm cylinder 20 can move into the fastening opening 15, and then the connection between the connecting ring 12 and the connecting groove 14 is realized, so that the connection tightness between the conical shaft 4 and the step expansion sleeve 3 is improved, the convenience is effectively brought to the disassembly and the assembly of the step expansion sleeve 3 and the conical shaft 4, and the convenience is further brought to the replacement of the step expansion sleeve 3; when the device works, an oil pipe is externally connected through an oil pipe joint 5, the hydraulic oil cylinder main body 6 drives the pull rod 2 to move, the pull rod 2 can drive the conical shaft 4 and the step expansion sleeve 3 to move synchronously, so that the step expansion sleeve 3 can expand and clamp a blank, the expansion clamping of the step expansion sleeve 3 corresponding to the size of the center hole of the wheel type is realized, the workpiece is clamped, the wheel types with different center hole sizes can be tensioned through the tension step type of the step expansion sleeve 3, the expansion sleeve main body 9 is suitable for most wheel types, and the expansion sleeve main body 9 on the clamp bottom plate 7 does not need to be replaced when different wheel types are replaced, so that the replacing time is effectively saved, and the processing efficiency is improved.

Claims

1. Novel general tension type dabber fixture of many sizes, including set main part (9) that rises, its characterized in that: the bottom end of the expansion sleeve main body (9) is connected with a clamp bottom plate (7), the top end of the clamp bottom plate (7) is provided with a connecting seat (8) sleeved outside the expansion sleeve main body (9), the expansion sleeve main body (9) is composed of a pull rod screw (1), a pull rod (2), a step expansion sleeve (3), a conical shaft (4), an oil pipe joint (5), a hydraulic oil cylinder main body (6) and a fastening mechanism, the hydraulic oil cylinder main body (6) is positioned inside the connecting seat (8), one side of the hydraulic oil cylinder main body (6) is provided with the oil pipe joint (5), one end of the hydraulic oil cylinder main body (6) is provided with the step expansion sleeve (3), the step expansion sleeve (3) is internally provided with a mounting groove (13), the pull rod (2) extending into the mounting groove (13) is arranged inside the hydraulic oil cylinder main body (6), and the step expansion sleeve (3) is connected with the pull rod (2) through the pull rod screw (1), the outside cover of pull rod (2) is equipped with conical shaft (4), and conical shaft (4) are located one side of step cover (3) that rises, and are connected through fastening device between conical shaft (4) and the step cover (3) that rises.

2. The novel multi-size universal tension mandrel fixture of claim 1, wherein: holding tank (16) have been seted up to the inside of pull rod (2), and logical groove (11) that are linked together with holding tank (16) have been seted up to the inside of pull rod (2), and lead to the inside that groove (11) extend to draw-bar screw (1).

3. The novel multi-size universal tension mandrel fixture of claim 1, wherein: the bottom end of the step expansion sleeve (3) is provided with a connecting groove (14) communicated with the mounting groove (13), and the top end of the conical shaft (4) is provided with a connecting ring (12) mounted inside the connecting groove (14).

4. The novel universal multi-sized tension mandrel fixture as claimed in claim 3, wherein: fastening ports (15) are symmetrically formed in the connecting ring (12) and the connecting groove (14).

5. The novel multi-size universal tension mandrel fixture of claim 1, wherein: fastening device includes rotation axis (17), stable axle (18), turbine (19), a worm section of thick bamboo (20), fixture block (21) and draw-in groove (22), rotation axis (17) have been worn to insert in the inside of logical groove (11), the bottom of rotation axis (17) extends to the interior bottom of holding tank (16), the cover is equipped with turbine (19) on rotation axis (17), the inner wall of holding tank (16) is all rotated and is connected with stable axle (18), the outside cover of stable axle (18) is equipped with worm section of thick bamboo (20) of being connected with turbine (19) meshing, the one end of worm section of thick bamboo (20) extends to the inside of fastening mouth (15), the bilateral symmetry of stable axle (18) is equipped with fixture block (21), draw-in groove (22) with fixture block (21) sliding connection are seted up to the inner wall of worm section of thick bamboo (20).

6. The novel multi-size universal tension mandrel fixture of claim 2, wherein: and a bearing (10) connected with the rotating shaft (17) and the pull rod screw (1) is arranged on the inner wall of the through groove (11).