CN218555618U

CN218555618U - Hydraulic expansion mandrel for numerical control equipment

Info

Publication number: CN218555618U
Application number: CN202223074620.9U
Authority: CN
Inventors: 秦扬豪; 张隽菡
Original assignee: Shenzhen Rili Precision Hardware Co ltd
Current assignee: Shenzhen Rili Precision Hardware Co ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-03-03
Anticipated expiration: 2032-11-21

Abstract

The utility model discloses a fluid pressure type inflation dabber for numerical control equipment, including transmission shaft and wheel hub, the outside left end of transmission shaft is provided with axle sleeve one, and the inside mounting hole one that is provided with of left end of axle sleeve one, the outside of axle sleeve one is provided with the hydraulic pressure chamber, the inside mounting hole two that is provided with of left end of axle sleeve two, both ends all are provided with the screw about the left side of axle sleeve one, wheel hub sets up in the outside middle-end of axle sleeve two. This numerical control is fluid pressure type inflation dabber for equipment, in the use, the transmission shaft is fixed through the fixed mode of hydraulic pressure, operation process is simple, convenient to use person installs and dismantles the transmission shaft, can effectively reduce the device operation in-process through the use of torsion restriction module, because of the harm that transships and produce, the life of device has been prolonged, through the fixed subassembly of secondary, can further fix the transmission shaft, increase the clamping-force of device to the transmission shaft, the axiality of device operation has been improved.

Description

Hydraulic expansion mandrel for numerical control equipment

Technical Field

The utility model relates to a fluid pressure type inflation dabber technical field specifically is a fluid pressure type inflation dabber for numerical control equipment.

Background

When some circular ring parts or gears are machined, a hydraulic expansion mandrel is often used, the expansion mandrel can clamp a workpiece by utilizing the characteristics of the expansion mandrel, namely, the expansion sleeve is pressurized by utilizing oil pressure, so that the expansion sleeve is expanded outwards to clamp the workpiece, and the expansion mandrel is extremely high in clamping precision, good in rigidity, simple to operate and strong in wear resistance.

Patent document for CN210789292U discloses an expansion core axle of precision machinery, including stop screw, stop screw's outside cover is equipped with the elastic tube, and stop screw's one end is provided with the retaining washer corresponding with the elastic tube, and stop screw's the other end is provided with the stop nut corresponding with the elastic tube, stop screw's inside is provided with fixed establishment, and fixed establishment includes stop screw, and stop screw's both ends are provided with the bearing, and the bearing is provided with the mounting with stop screw's junction, and stop screw's both ends still are provided with spacing sliding sleeve, and stop screw's both sides are provided with the limiting plate. The utility model discloses a simple structure, convenient to use fixes the work piece through the elastic tube when using to carry out the secondary through exerting pressure of limiting plate and consolidate the work piece, make the work piece atress more even, thereby make the expansion core axle better to the fixed effect of work piece.

Although the device can enable the stress of the workpiece to be more uniform in the using process, when the workpiece is installed, the elastic pipe is firstly used for fixing, then a plurality of parts in the fixing mechanism are used for secondary fixing, the installing and disassembling process is complex, the workpiece is not convenient to install and disassemble, and therefore a hydraulic expansion mandrel for numerical control equipment is provided.

Disclosure of Invention

An object of the utility model is to provide a fluid pressure type inflation dabber for numerical control equipment to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fluid pressure type inflation dabber for numerical control equipment, includes transmission shaft and wheel hub, the outside left end of transmission shaft is provided with axle sleeve one, and the inside mounting hole that is provided with of left end of axle sleeve one, the outside of axle sleeve one is provided with the hydraulic pressure chamber, and the outside in hydraulic pressure chamber is provided with axle sleeve two, the inside mounting hole two that is provided with of left end of axle sleeve two, both ends all are provided with the screw about the left side of axle sleeve one, wheel hub sets up in the outside middle-end of axle sleeve two.

Furthermore, the right-hand member of wheel hub is provided with the fixed subassembly of secondary, and the fixed subassembly of secondary includes swivel nut, screw thread and weaves the silk, the inside left end of swivel nut is provided with screw thread (), and the inside right-hand member of swivel nut is provided with weaves the silk.

Furthermore, the right end of the outer portion of the transmission shaft is provided with a first torsion limiting module, and the first torsion limiting module is fixedly connected with the transmission shaft.

Furthermore, a second torsion limiting module is arranged at the right end of the first torsion limiting module and is integrally connected with the first torsion limiting module.

Furthermore, a pushing plate is arranged at the left end of the inner part of the second torsion limiting module, and the pushing plate is in sliding connection with the second torsion limiting module.

Furthermore, a fixing strip is arranged on the left side of the pushing plate and welded with the pushing plate.

Furthermore, the left end of the fixing strip is provided with a ball, and the ball is welded with the fixing strip.

Furthermore, the thread insert and the thread are integrally connected, and the weaving wire and the thread insert are fixedly connected.

The utility model provides a fluid pressure type inflation dabber for numerical control equipment possesses following beneficial effect: in the use, fix the transmission shaft through the fixed mode of hydraulic pressure, operation process is simple, and convenient to use person installs and dismantles the transmission shaft, can effectively reduce the device operation in-process through the use of torsion restriction module, because of the harm that transships and produced, has prolonged the life of device, through the fixed subassembly of secondary, can further fix the transmission shaft, increases the clamping-force of device to the transmission shaft, has improved the axiality of device operation.

The utility model discloses a transmission shaft, axle sleeve one, the screw, axle sleeve two, wheel hub, the subassembly is fixed to the secondary, torsion restriction module one, torsion restriction module two, the hydraulic pressure chamber, the setting of mounting hole one and mounting hole two, during the use, at first pass axle sleeve one with the transmission shaft in proper order, axle sleeve two, wheel hub, the subassembly is fixed to the secondary, torsion restriction module one and torsion restriction module two, turn right the screw from a left side and pass mounting hole one and mounting hole two in proper order again, tighten the screw with the spanner, in this process, when the screw passes axle sleeve two fixed earlier on the mounting hole of axle sleeve two, axle sleeve one produces the extrusion force with axle sleeve two, the hydraulic medium of hydraulic pressure intracavity portion receives the expansion of extrusion force two, installation wheel hub prevents that axle sleeve two from producing deformation in the outside of axle sleeve two, inflation force through hydraulic medium, can make axle sleeve and transmission shaft fixed, when dismantling, dismantle the screw down, can easily dismantle, in this process, the transmission shaft is fixed through the fixed mode of hydraulic pressure, and operation process is simple, and convenience is convenient for the user installs and dismantles the transmission shaft.

The utility model discloses a torsion restriction module one, torsion restriction module two, the slurcam, the setting of fixed strip and ball, in use, when the device is transshipping at the torsion of operation in-process, two inside slurcams of torsion restriction module can drive fixed strip and ball and move right, make ball and the separation of the rolling groove of a torsion restriction module inside, make the device avoid transshipping and the damage that arouses, in this process, can effectively reduce the device operation in-process through the use of torsion restriction module, because of the harm that transships and produce, the life of device has been prolonged.

Drawings

Fig. 1 is a schematic front view of a hydraulic expansion mandrel for a numerical control apparatus according to the present invention;

fig. 2 is a schematic front sectional view of a hydraulic expansion mandrel for a numerical control apparatus according to the present invention;

fig. 3 is a schematic side view of a hydraulic expansion mandrel for a numerical control apparatus according to the present invention;

fig. 4 is the utility model discloses a wheel hub spatial structure schematic diagram of fluid pressure type expansion core axle for numerical control device.

In the figure: 1. a drive shaft; 2. a first shaft sleeve; 3. a screw; 4. a second shaft sleeve; 5. a hub; 6. a secondary fixing component; 601. a threaded sleeve; 602. a thread; 603. weaving silk; 7. a first torsion limiting module; 8. a second torsion limiting module; 9. a hydraulic chamber; 10. a push plate; 11. a fixing strip; 12. a ball bearing; 13. a first mounting hole; 14. and a second mounting hole.

Detailed Description

As shown in fig. 1-4, a hydraulic expansion mandrel for numerical control equipment comprises a transmission shaft 1 and a hub 5, wherein a first shaft sleeve 2 is arranged at the left end of the outside of the transmission shaft 1, a first mounting hole 13 is arranged inside the left end of the first shaft sleeve 2, a hydraulic cavity 9 is arranged outside the first shaft sleeve 2, a second shaft sleeve 4 is arranged outside the hydraulic cavity 9, a second mounting hole 14 is arranged inside the left end of the second shaft sleeve 4, screws 3 are arranged at the upper end and the lower end of the left side of the first shaft sleeve 2, and the hub 5 is arranged at the middle end of the outside of the second shaft sleeve 4. When the mandrel is used, the transmission shaft 1 firstly penetrates through the first shaft sleeve 2, the second shaft sleeve 4, the hub 5, a secondary fixing component 6, a first torque limiting module 7 and a second torque limiting module 8 in sequence, then the screws 3 penetrate through the first mounting hole 13 and the second mounting hole 14 in sequence from the right, the screws 3 are tightened by a wrench, in the process, when the screw 3 passes through the first shaft sleeve 2 and is fixed to the second mounting hole 14 of the second shaft sleeve 4, the first shaft sleeve 2 and the second shaft sleeve 4 generate extrusion force, a hydraulic medium in the hydraulic cavity 9 is expanded by the second extrusion force, the hub 5 is mounted on the outer side of the second shaft sleeve 4 to prevent the second shaft sleeve 4 from deforming, the shaft sleeve and the transmission shaft 1 can be fixed through the expansion force of the hydraulic medium, when the shaft sleeve is disassembled, the screw 3 is disassembled, the transmission shaft 1 can be disassembled easily, in the process, the transmission shaft 1 is fixed through a hydraulic fixing mode, the operation process is simple, a user can conveniently install and disassemble the transmission shaft 1, the right end of the hub 5 is provided with the secondary fixing component 6, the secondary fixing component 6 comprises a thread sleeve 601, a thread 602 and a braided wire 603, the left end inside the thread (602) is arranged at the left end of the thread sleeve 601, the braided wire 603 is arranged at the right end inside the thread 601, and the thread 602 is integrally connected, and the knitting wire 603 is fixedly connected with the screw sleeve 601, when the device is used, the screw sleeve 601 in the secondary fixing component 6 is connected with the second shaft sleeve 4 through the threads 602, and meanwhile, the knitting wire 603 is arranged at the right end in the screw sleeve 601, so that the friction force between the secondary fixing component 6 and the transmission shaft 1 can be increased, the coaxiality is increased, in the process, the transmission shaft 1 can be further fixed through the secondary fixing component 6, the clamping force of the device on the transmission shaft 1 is increased, and the running coaxiality of the device is improved.

As shown in fig. 1 and 2, a first torsion limiting module 7 is disposed at the right end of the exterior of the transmission shaft 1, the first torsion limiting module 7 is fixedly connected with the transmission shaft 1, a second torsion limiting module 8 is disposed at the right end of the first torsion limiting module 7, the second torsion limiting module 8 is integrally connected with the first torsion limiting module 7, a push plate 10 is disposed at the left end of the interior of the second torsion limiting module 8, the push plate 10 is slidably connected with the second torsion limiting module 8, a fixing strip 11 is disposed at the left side of the push plate 10, the fixing strip 11 is welded with the push plate 10, balls 12 are disposed at the left end of the fixing strip 11, and the balls 12 are welded with the fixing strip 11.

In summary, when the hydraulic expansion mandrel for the numerical control device is used, the transmission shaft 1 sequentially penetrates through the first shaft sleeve 2, the second shaft sleeve 4, the hub 5, the secondary fixing component 6, the first torsion limiting module 7 and the second torsion limiting module 8, the screw 3 sequentially penetrates through the first mounting hole 13 and the second mounting hole 14 from left to right, the screw 3 is screwed by a wrench, in the process, when the screw 3 penetrates through the first shaft sleeve 2 to be fixed to the second mounting hole 14 of the second shaft sleeve 4, the first shaft sleeve 2 and the second shaft sleeve 4 generate extrusion force, hydraulic medium inside the hydraulic cavity 9 expands under the action of the second extrusion force, the hub 5 is mounted on the outer side of the second shaft sleeve 4 to prevent the second shaft sleeve 4 from deforming, the shaft sleeve and the transmission shaft 1 can be fixed through the expansion force of the hydraulic medium, when the screw 3 is dismounted, the dismounting can be easily dismounted, the second shaft sleeve 601 in the secondary fixing component 6 is connected with the second shaft sleeve 4 through the threads 602, meanwhile, the weaving wire 603 is arranged inside the right end of the second sleeve 601, the torsion fixing component can increase the friction force between the secondary fixing component 6 and the torsion limiting module, the torsion of the torsion fixing device, when the overload device runs, the overload device, the ball pushing device can limit the ball module 12, and the ball pushing device can prevent the ball from being damaged, and the ball pushing device from moving, and the ball pushing device 12, and the ball pushing device can be damaged.

Claims

1. The utility model provides a fluid pressure type inflation dabber for numerical control equipment, includes transmission shaft (1) and wheel hub (5), its characterized in that, the outside left end of transmission shaft (1) is provided with axle sleeve (2), and the left end inside of axle sleeve (2) is provided with mounting hole (13), the outside of axle sleeve (2) is provided with hydraulic pressure chamber (9), and the outside in hydraulic pressure chamber (9) is provided with axle sleeve two (4), the left end inside of axle sleeve two (4) is provided with mounting hole two (14), both ends all are provided with screw (3) about the left side of axle sleeve one (2), wheel hub (5) set up in the outside middle-end of axle sleeve two (4).

2. A hydraulic expansion mandrel for numerical control equipment according to claim 1, characterized in that the right end of the hub (5) is provided with a secondary fixing component (6), and the secondary fixing component (6) comprises a threaded sleeve (601), a thread (602) and a weaving wire (603), the inner left end of the threaded sleeve (601) is provided with the thread (602), and the inner right end of the threaded sleeve (601) is provided with the weaving wire (603).

3. The hydraulic expansion mandrel for numerical control equipment according to claim 1, wherein the right outer end of the transmission shaft (1) is provided with a first torsion limiting module (7), and the first torsion limiting module (7) is fixedly connected with the transmission shaft (1).

4. The hydraulic expansion mandrel for the numerical control equipment as claimed in claim 3, wherein a second torsion limiting module (8) is arranged at the right end of the first torsion limiting module (7), and the second torsion limiting module (8) and the first torsion limiting module (7) are integrally connected.

5. The hydraulic expansion mandrel for the numerical control equipment is characterized in that a pushing plate (10) is arranged at the left end of the inside of the second torsion limiting module (8), and the pushing plate (10) is in sliding connection with the second torsion limiting module (8).

6. A hydraulic expansion mandrel for numerical control equipment according to claim 5, characterized in that the left side of the pushing plate (10) is provided with a fixing strip (11), and the fixing strip (11) and the pushing plate (10) are welded.

7. A hydraulic expansion mandrel for numerical control equipment according to claim 6, characterized in that the left end of the fixing strip (11) is provided with a ball (12), and the ball (12) and the fixing strip (11) are welded.

8. A hydraulic expansion mandrel for numerical control equipment according to claim 2 characterized in that the threaded sleeve (601) is integrally connected with the thread (602) and the braided wire (603) is fixedly connected with the threaded sleeve (601).