CN209902680U

CN209902680U - Telescopic support frame special for numerical control machining of slender shaft

Info

Publication number: CN209902680U
Application number: CN201920515706.XU
Authority: CN
Inventors: 徐云飞; 李阳; 郑伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-16
Filing date: 2019-04-16
Publication date: 2020-01-07
Anticipated expiration: 2029-04-16

Abstract

The utility model discloses a special telescopic support frame of numerical control processing slender axles mainly solves the problem that the numerical control lathe who exists among the prior art because the vibration takes place the deformation easily when processing slender axles work piece. The support frame comprises a transverse connecting rod and a longitudinal connecting rod which are movably connected, a fixing device connected with the transverse connecting rod, and a support device arranged at the end part of the longitudinal connecting rod; the supporting device comprises a connecting shaft, a U-shaped piece, a connecting block, a double-wheel bearing wheel device and an elastic device, wherein the connecting shaft is sleeved at the end part of the longitudinal connecting rod and is hollow inside, one end of the connecting shaft is connected with the cavity in the connecting base in a clamping mode, the U-shaped piece is fixed at the other end of the connecting shaft, the connecting block is movably installed in the U-shaped piece and can rotate around the U-shaped piece, the double-wheel bearing wheel device is fixedly connected with the connecting block, and the elastic device is installed in the cavity in. By the proposal, the utility model discloses reached the antivibration purpose, had very high practical value and spreading value.

Description

Telescopic support frame special for numerical control machining of slender shaft

Technical Field

The utility model belongs to the technical field of machining, specifically say, relate to a special telescopic support frame of numerical control processing slender axles.

Background

The automobile transmission shaft is the main transmission part in the universal rotating device, is in a high-speed rotating state during working, and the rotating speed and the transmitted torque of the automobile transmission shaft are constantly changed, so that the requirement on the precision of parts is high. However, in the existing numerical control machining technology, when the suspended part of the workpiece such as the slender shaft is machined to be long, the workpiece such as the slender shaft is easy to vibrate during machining, so that the slender shaft is easy to deform during machining, the machining difficulty is increased, the requirement of a numerical control lathe on machining equipment is limited, meanwhile, the space of the numerical control lathe is large, the inclined guide rail is provided with a tailstock, and finally, the time required for clamping is long due to the lag of a locking method of the numerical control lathe. Therefore, the support frame capable of ensuring that the suspended part is not deformed due to vibration when the slender shaft workpiece is machined is a technical problem which needs to be solved urgently by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a special telescopic support frame of numerical control processing slender axles, the numerical control lathe who mainly solves existence among the prior art because the vibration takes place the problem of deformation easily when processing slender axles work piece.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

a special telescopic support frame for numerical control machining of a slender shaft comprises a transverse connecting rod and a longitudinal connecting rod which are mutually crossed and movably connected, a fixing device which is connected with the transverse connecting rod and used for being fixed on a tailstock guide rail of a numerical control lathe, and a supporting device which is arranged at the end part of the longitudinal connecting rod and used for supporting the slender shaft; the supporting device comprises a connecting shaft, a U-shaped piece, a connecting block, a double-wheel bearing wheel device and an elastic device, wherein the connecting shaft is sleeved at the end part of the longitudinal connecting rod and is hollow inside, one end of the connecting shaft is connected with the cavity in the connecting seat in a clamping mode, the U-shaped piece is fixed at the other end of the connecting shaft, the connecting block is movably installed in the U-shaped piece and can rotate around the U-shaped piece, the double-wheel bearing wheel device is fixedly connected with the connecting block and is used for supporting the slender shaft, and the elastic device is installed.

Furthermore, a hollow first connecting pipe, a first threaded hole formed in the first connecting pipe, and a first bolt matched with the first threaded hole and used for fixing the longitudinal connecting rod inserted into the first connecting pipe are fixed at the end of the transverse connecting rod.

Furthermore, the fixing device comprises a second connecting pipe sleeved on the transverse connecting rod, a second threaded hole formed in the second connecting pipe, a second bolt matched with the second threaded hole and used for fixing the transverse connecting rod inserted into the second connecting pipe, a supporting base fixedly connected with the second connecting pipe and used for being fixed on a tailstock guide rail of the numerically controlled lathe, a third threaded hole formed above the supporting base, and a third bolt matched with the third threaded hole and used for reinforcing the tightness of the supporting base and the tailstock guide rail of the numerically controlled lathe.

Furthermore, a notch is formed in the middle of the supporting base, wherein the notch is used for being clamped on a tailstock guide rail of the numerical control lathe.

Furthermore, the elastic device comprises a spring arranged in the connecting seat, a screw rod, a bottom plate and a butterfly nut, wherein the screw rod is in contact with the spring and used for limiting the spring, the bottom plate is rotationally connected with the screw rod and fixed on the connecting seat, and the butterfly nut is fixed at the end part of the screw rod and used for conveniently rotating the screw rod.

Specifically, the double-wheel bearing wheel device comprises a mounting frame, wherein the bottom of the mounting frame is fixedly connected with the connecting block and is U-shaped, two bearings are mounted in the mounting frame side by side and fixed on the mounting frame through a shaft, the middle parts of two sides of the mounting frame are opened towards the connecting block, and the shape of the opening of the mounting frame is matched with that of the bearing.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the utility model provides a numerical control lathe support frame structure, this device simple structure, the assembly and disassembly is convenient, and the stable performance breaks through the bottleneck of the isometric axle class part of numerical control lathe processing car transmission shaft, can realize automatic machining and make, and the resilient means who sets up simultaneously can prevent to take place to warp because of receiving the vibrational force when processing slender axles, simultaneously the utility model discloses still have advantages such as supplementary processing, operation safety, reliability height, the practicality is strong.

(2) The utility model discloses well transverse connection pole, longitudinal tie rod and fixing device can all realize telescopic regulation length each other, and bearing structure in the double round bearing wheel device that sets up simultaneously has avoided the slender axles to take place with the condition of the bending deformation who produces man-hour effectively, and both intercombination has overcome prior art's defect, and is applicable in industrial popularization and use.

(3) The utility model discloses in realize through the spring that slender axles subduct the vibrational force that double-wheel bearing wheel device produced to be located the length of connecting seat through butterfly nut adjusting screw, thereby realize adjusting the spring force size that is located connecting seat inside, can reset fast when realizing that double-wheel bearing wheel device receives the vibration, avoided slender axles to take place deformation

Drawings

Fig. 1 is a schematic diagram of the system structure of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is an enlarged sectional view of a in fig. 1.

In the drawings, the names of the parts corresponding to the reference numerals are as follows:

1-transverse connecting rod, 2-longitudinal connecting rod, 3-connecting seat, 4-connecting shaft, 5-U-shaped piece, 6-connecting block, 7-mounting frame, 8-bearing, 9-double-wheel bearing wheel device, 10-first connecting pipe, 11-first bolt, 12-second connecting pipe, 13-second bolt, 14-supporting base, 15-third bolt, 16-notch, 17-spring, 18-screw rod, 19-bottom plate, 20-butterfly nut and 21-fourth bolt.

Detailed Description

The present invention will be further described with reference to the following drawings and examples, and embodiments of the present invention include, but are not limited to, the following examples.

Examples

As shown in fig. 1 to 3, a telescopic support frame specially used for a numerical control machining slender shaft comprises a transverse connecting rod 1 and a longitudinal connecting rod 2 which are mutually crossed and movably connected, a fixing device which is connected with the transverse connecting rod 1 and is used for fixing on a tailstock guide rail of a numerical control lathe, and a supporting device which is arranged at the end part of the longitudinal connecting rod 2 and is used for supporting the slender shaft; the supporting device comprises a connecting shaft 4, one end of the connecting shaft is connected with the connecting shaft 4 in a hollow cavity of the connecting seat 3, a U-shaped part 5 is fixed to the other end of the connecting shaft 4, a connecting block 6 is movably mounted in the U-shaped part 5 and can rotate around the U-shaped part 5, a double-wheel bearing wheel device 9 fixedly connected with the connecting block 6 and used for supporting the slender shaft, and an elastic device which is mounted in the hollow cavity of the connecting seat 3 and used for relieving the vibrating force generated by the slender shaft to the double-wheel bearing wheel device 9.

Installation is confirmed to length of slender axles that processes as required the utility model discloses the number of support frame, after confirming the number, 16 joints of breach that will support base 14 are on numerical control lathe tailstock guide rail, screw up third bolt 15 simultaneously, in order to guarantee to support base 14's stability, then adjust transverse connection rod 1's position, after transverse connection rod 1's position adjustment is good fix second connecting pipe 12 and transverse connection rod 1 through second bolt 13, adjust the position of longitudinal tie 2, then cover does not violate first bolt 11 of law and fix first connecting pipe 10 and longitudinal tie 2, holistic frame construction this moment and build the completion.

The double-wheel bearing wheel device 9 is rotated, at the moment, the connecting block 6 rotates through a fourth bolt 21 which is simultaneously connected with the U-shaped part 5 and the connecting block 6 in a penetrating manner, then the connecting block 6 is fixed in the U-shaped part 5 through a nut matched with the fourth bolt 21 for use, the elastic device is arranged at the position of the numerical control lathe according to the support frame, the principle is that the vibration amplitude of the slender shaft close to the numerical control lathe is smaller than that of the slender shaft far away from the numerical control lathe, therefore, the pressure borne by a spring 17 of the elastic device close to the end of the numerical control lathe is smaller than the elastic force of the elastic device far away from the end of the numerical control lathe, a screw rod 18 is adjusted according to the principle, and the length of the screw rod 18 located at the end of the numerical. Meanwhile, the slender shaft is positioned in the middle of the two bearings 8, an opening for placing the slender shaft is specially formed in the mounting frame 7, and the friction force is reduced by the rolling friction of the slender shaft and the bearings. For the whole support frame device, the abrasion is small, and the service life is longer.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not a limitation to the protection scope of the present invention, but all the changes made by adopting the design principle of the present invention and performing non-creative work on this basis should belong to the protection scope of the present invention.

Claims

1. The special telescopic support frame for the numerical control machining of the slender shaft is characterized by comprising a transverse connecting rod (1) and a longitudinal connecting rod (2) which are mutually crossed and movably connected, a fixing device which is connected with the transverse connecting rod (1) and is used for being fixed on a tailstock guide rail of a numerical control lathe, and a supporting device which is arranged at the end part of the longitudinal connecting rod (2) and is used for supporting the slender shaft; the supporting device comprises a connecting shaft (4) which is sleeved on one side of the end portion of the longitudinal connecting rod (2) and is hollow inside, one end of the connecting shaft (4) is connected with the hollow cavity in the connecting seat (3), a U-shaped piece (5) which is fixed to the other end of the connecting shaft (4) is fixed to the U-shaped piece (5), a connecting block (6) which is movably mounted in the U-shaped piece (5) and can rotate around the U-shaped piece (5) is fixedly connected with the connecting block (6) and is used for supporting a double-wheel bearing wheel device (9) of the slender shaft, and an elastic device which is mounted in the hollow cavity in the connecting seat (3) and is used for.

2. A telescopic support frame specially used for a numerical control machining slender shaft according to claim 1 is characterized in that a hollow first connecting pipe (10), a first threaded hole formed on the first connecting pipe (10) and a first bolt (11) matched with the first threaded hole and used for fixing a longitudinal connecting rod (2) inserted into the first connecting pipe (10) are fixed at the end part of the transverse connecting rod (1).

3. The telescopic support frame special for the numerical control machining slender shaft is characterized in that the fixing device comprises a second connecting pipe (12) sleeved on the transverse connecting rod (1), a second threaded hole formed in the second connecting pipe (12), a second bolt (13) matched with the second threaded hole and used for fixing the transverse connecting rod (1) inserted into the second connecting pipe (12), a supporting base (14) fixedly connected with the second connecting pipe (12) and used for being fixed on a tailstock guide rail of the numerical control lathe, a third threaded hole formed above the supporting base (14), and a third bolt (15) matched with the third threaded hole and used for strengthening the tightness of the supporting base (14) and the tailstock guide rail of the numerical control lathe.

4. The telescopic support frame special for the numerical control machining of the slender shaft is characterized in that a notch (16) is formed in the middle of the support base (14), wherein the notch (16) is used for being clamped on a tailstock guide rail of a numerical control lathe.

5. The telescopic support frame special for the numerical control machining slender shaft is characterized in that the elastic device comprises a spring (17) arranged in the connecting seat (3), a screw rod (18) with a nut contacted with the spring (17) and used for limiting the spring, a bottom plate (19) rotationally connected with the screw rod (18) and fixed on the connecting seat (3), and a butterfly nut (20) fixed at the end part of the screw rod (18) and used for conveniently rotating the screw rod (18).

6. A telescopic support frame special for a numerical control machining slender shaft according to claim 5, characterized in that the double-wheel bearing wheel device (9) comprises a U-shaped mounting frame (7) with the bottom fixedly connected with the connecting block (6), and two bearings (8) which are mounted in the mounting frame (7) side by side and fixed on the mounting frame (7) through a shaft, wherein the middle parts of two sides of the mounting frame (7) are opened towards the connecting block (6), and the shape of the opening of the mounting frame (7) is matched with the shape of the bearing (8).