CN217667517U

CN217667517U - Fixed frock is used to transmission shaft straightener

Info

Publication number: CN217667517U
Application number: CN202221649366.8U
Authority: CN
Inventors: 于笑凡; 包金明; 吴倩; 罗守军; 陆星
Original assignee: Yunhu Intelligent Equipment Nanjing Co ltd
Current assignee: Yunhu Intelligent Equipment Nanjing Co ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-10-28
Anticipated expiration: 2032-06-28

Abstract

The utility model relates to a transmission shaft straightener field, specific is a fixed frock for transmission shaft straightener, including the processing frame, movable mounting has the lower mount that two sets of symmetries set up on the processing frame, install a set of top mount that can reciprocate on the lower mount, the lower mount with the inside of top mount waits the angle respectively and installs the first ball of multiunit and second ball, and through adopting three-jaw chuck or other chuck fixed back with the both ends of transmission shaft, adjust the distance between two sets of lower mounts, readjust the distance between lower mount and the top mount, can make two sets of lower mounts and two sets of top mount can lock not unidimensional transmission shaft, accomplish the fixed of transmission shaft body, with the help of the multiunit ball of lower mount and two sets of top mount arc side-mounting simultaneously, when the chuck drives the transmission shaft and carries out the rotating machining processing, fixing device can not influence the rotating machining of transmission shaft when the transmission shaft body locks.

Description

Fixed frock is used to transmission shaft straightener

Technical Field

The utility model relates to a fixed frock is used to transmission shaft straightener belongs to transmission shaft straightener technical field.

Background

In the automobile assembly process, because the critical rotating speed of a transmission shaft is limited, the length of the transmission shaft is generally not more than 1500-2000 mm, and if the distance between a gearbox and a drive axle is too long, a sectional type transmission shaft system is adopted, namely one or more sections of intermediate transmission shafts without sliding spline pairs and one section of drive axle transmission shaft with the sliding spline pairs are connected to form the transmission shaft system.

The duplex transmission shaft mainly comprises a sliding fork, a universal joint assembly, a clamp spring, a universal joint fork, a shaft tube, a middle spline shaft head, a dust cover, a middle support assembly, a connecting fork, a flange fork and the like.

At present, when the duplex transmission shaft is assembled and welded in a straightening mode, one end of the duplex transmission shaft is generally positioned by a spline mandrel on a duplex straightening welding machine, the other end of the duplex transmission shaft is positioned by a spigot disc, the middle part of the duplex transmission shaft is positioned by a clamp, and four welding guns of the straightening welding machine are aligned with four welding seams and welded at the same time.

The fixing tool of the existing transmission shaft straightening machine has the following defects: after fixing the transmission shaft, when again needing to process the transmission shaft, it is rotatory to need control the transmission shaft, but the design of fixed frock now can influence the rotation of transmission shaft, and inconvenient transmission shaft locks the shaft body when rotating the processing, and can not adjust according to the transmission shaft size.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is, it is not enough to prior art, provide a transmission shaft straightener is with fixed frock.

The utility model discloses a solve the technical scheme that above-mentioned technical problem provided and be: the utility model provides a transmission shaft straightener is with fixed frock, includes the processing frame, movable mounting has the lower mount that two sets of symmetries set up on the processing frame, install a set of upper bracket that can reciprocate on the lower mount, the lower mount with the inside of upper bracket is the angle respectively and is installed first ball of multiunit and second ball.

The improvement of the technical scheme is as follows: the upper end parallel of handling frame is fixed with the multiunit stopper, the cross section of stopper is "T" font, and adjacent two sets of one side of stopper is provided with servo motor, servo motor's function end is fixed with the lead screw, the lead screw both ends are first lead screw and second lead screw respectively, the inside at the bearing frame is installed to the other end of lead screw.

The improvement of the technical scheme is as follows: the servo motor is arranged on the processing frame, the bearing seat is arranged on the processing frame, the screw rod is positioned between the two groups of limiting blocks, and the directions of threads formed on the surfaces of the first screw rod and the second screw rod are opposite.

The improvement of the technical scheme is as follows: the lower end middle position of the lower fixing frame is provided with a threaded hole, the threaded hole corresponding to the lower fixing frame is internally provided with the first screw rod and the second screw rod respectively, the lower end of the lower fixing frame is provided with two groups of sliding grooves, the sliding grooves are positioned on two sides of the threaded hole, and the sliding grooves are internally provided with limiting blocks.

The improvement of the technical scheme is as follows: one side of the lower fixing frame is of an arc-shaped structure, a plurality of groups of first grooves are formed in one side of the lower fixing frame in an arc shape at equal angles, a group of first balls are arranged in each group of the first grooves in a rolling mode, and the lower fixing frame and the first balls form a rotating structure.

The improvement of the technical scheme is as follows: the upper end of the lower fixing frame is fixed with a group of limiting bolts which are cylindrical, a group of limiting grooves are formed in the upper fixing frame, the limiting bolts are mounted in the limiting grooves, and the cross section of each limiting bolt is the same as that of each limiting groove in size.

The improvement of the technical scheme is as follows: one side of the upper fixing frame is of an arc-shaped structure, a plurality of groups of second grooves are formed in one side of the upper fixing frame in an arc shape at equal angles, a group of second balls are movably mounted in the second grooves, and the arc size of one side of the upper fixing frame is the same as that of one side of the lower fixing frame.

The improvement of the technical scheme is as follows: wherein keep away from first ball the one side outer end of lower mount is fixed with the cylinder, the flexible end of cylinder is installed the lower extreme of upper bracket.

The utility model adopts the above technical scheme's beneficial effect is: after adopting three-jaw chuck or other chucks to fix through the both ends with the transmission shaft, through adjusting the distance between two sets of mounts down, then adjust the distance between mount and the upper bracket down, can make two sets of mounts down and two sets of upper brackets can lock not unidimensional transmission shaft, accomplish the fixed of transmission shaft axle body, the multiunit ball with the help of mount and two sets of upper bracket arc side-mounting down simultaneously, when the chuck drives the transmission shaft and carries out rotation processing, fixing device can not influence the rotation processing of transmission shaft when the transmission shaft axle body locks.

Drawings

The present invention will be further explained with reference to the accompanying drawings:

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

FIG. 2 is a schematic structural view of the movable fixing frame of the present invention;

FIG. 3 is a schematic view of the explosion structure of the present invention;

fig. 4 is a schematic view of the cross-sectional structure of the lower fixing frame and the upper fixing frame of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. processing a frame; 2. a limiting block; 3. a servo motor; 4. a first lead screw; 5. a second lead screw; 6. a bearing seat; 7. a lower fixing frame; 8. a threaded hole; 9. a limit bolt; 10. a first groove; 11. a first ball bearing; 12. an upper fixing frame; 13. a limiting groove; 14. a second groove; 15. a second ball bearing; 16. and a cylinder.

Detailed Description

Examples

The fixing tool for the transmission shaft straightening machine in the embodiment is shown in fig. 1-4, and comprises a processing frame 1, wherein two groups of symmetrically arranged lower fixing frames 7 are movably mounted on the processing frame 1, a group of upper fixing frames 12 capable of moving up and down are mounted on the lower fixing frames 7, and a plurality of groups of first balls 11 and second balls 15 are respectively mounted in the lower fixing frames 7 and the upper fixing frames 12 at equal angles.

The upper end parallel of processing frame 1 is fixed with multiunit stopper 2, and the cross section of stopper 2 is "T" font, and one side of two sets of adjacent stoppers 2 is provided with servo motor 3, and servo motor 3's function end is fixed with the lead screw, and the lead screw both ends are first lead screw 4 and second lead screw 5 respectively, and the inside at bearing frame 6 is installed to the other end of lead screw.

The servo motor 3 is arranged on the processing frame 1, the bearing seat 6 is arranged on the processing frame 1, the screw rod is positioned between the two groups of limiting blocks 2, and the directions of the threads formed on the surfaces of the first screw rod 4 and the second screw rod 5 are opposite. Threaded hole 8 is seted up to the lower extreme intermediate position of lower mount 7, corresponds the threaded hole 8 inside of lower mount 7 and installs first lead screw 4 and second lead screw 5 respectively, and two sets of spouts have been seted up to the lower extreme of lower mount 7, and the spout is located the both sides of threaded hole 8, and the internally mounted of spout has stopper 2. Control the lead screw through servo motor 3 and rotate, when the lead screw rotates, control first lead screw 4 and second lead screw 5 and rotate in the inside of the lower fixed frame 7 that corresponds, under the cooperation of screw hole 8, make two sets of lower fixed frames 7 can carry out synchronous revolution, change the distance between two sets of lower fixed frames 7, spout and the 2 cooperations of stopper simultaneously offered through lower fixed frame 7 lower extreme, make lower fixed frame 7 remove on appointed track, the condition that the fixed frame 7 removed the in-process and produces the skew can not appear down.

A group of limiting bolts 9 are fixed at the upper end of the lower fixing frame 7, the limiting bolts 9 are cylindrical, a group of limiting grooves 13 are formed in the upper fixing frame 12, the limiting bolts 9 are installed in the limiting grooves 13, and the cross section of each limiting bolt 9 is the same as that of each limiting groove 13. An air cylinder 16 is fixed at the outer end of one side of the lower fixing frame 7 far away from the first ball 11, and the telescopic end of the air cylinder 16 is installed at the lower end of the upper fixing frame 12. The limiting bolt 9 is arranged in the limiting groove 13, the lower fixing frame 7 is connected with the upper fixing frame 12, and under the condition that the lower fixing frame 7 is connected with the upper fixing frame 12, when the air cylinder 16 pushes the upper fixing frame 12 to move, the upper fixing frame 12 cannot rotate with the upper fixing frame 12, so that the lower fixing frame 7 and the upper fixing frame 12 are always kept on the same vertical plane.

One side of lower mount 7 is the arc structure, and the shape is that one side of the lower mount 7 of arc form is inside to be waited for the angle and has seted up multiunit first recess 10, and the inside of every first recess 10 of group all rolls and installs a set of first ball 11, and lower mount 7 and first ball 11 constitute revolution mechanic. One side of the upper fixing frame 12 is of an arc-shaped structure, a plurality of groups of second grooves 14 are formed in one side of the arc-shaped upper fixing frame 12 at equal angles, a group of second balls 15 are movably mounted in the second grooves 14, and the arc size of one side of the upper fixing frame 12 is the same as the arc size of one side of the lower fixing frame 7. One side of the lower fixing frame 7 and one side of the upper fixing frame 12 in the arc shape are provided with a plurality of groups of first balls 11 and second balls 15, and when the three-jaw chuck is controlled to rotate the transmission shaft, the first balls 11 and the second balls 15 rotate in the first grooves 10 and the second grooves 14, so that the rotation of the transmission shaft cannot be influenced.

The working principle is as follows: first, by starting the servo motor 3, the lead screw is controlled to rotate, the first lead screw 4 and the second lead screw 5 which are arranged at two ends of the lead screw are matched with the threaded holes 8 to rotate, two groups of lower fixing frames 7 are made to move on the limiting blocks 2, and then two groups of upper fixing frames 12 are made to move, the transmission shaft is conveniently placed at the central position of the fixing frames, then two groups of three-jaw chucks are used for fixing two ends of the transmission shaft, the transmission shaft is preliminarily fixed on a machine tool, after preliminary fixing of the transmission shaft is completed, the servo motor 3 is reused for rotating, two groups of lower fixing frames 7 are controlled to move, the lower ends of the transmission shaft are supported by means of the two groups of lower fixing frames 7, then the upper fixing frames 12 are controlled to move, the distance between the lower fixing frames 7 and the upper fixing frames 12 is changed, so that the shaft bodies of the transmission shaft are fixed by the lower fixing frames 7 and the upper fixing frames 12, and one side of the lower fixing frames 7 and the upper fixing frames 12 are provided with a plurality of groups of first ball 11 and second ball 15, when the three-jaw rotating transmission shaft is controlled to rotate, under the effect of the transmission shaft under the effect of the first ball 11 and the second ball 15.

The present invention is not limited to the above embodiment. All technical schemes formed by adopting equivalent substitution fall within the protection scope required by the utility model.

Claims

1. The utility model provides a transmission shaft is fixed frock for straightener, includes processing frame (1), its characterized in that: the processing frame (1) is movably provided with two groups of lower fixing frames (7) which are symmetrically arranged, the lower fixing frames (7) are provided with a group of upper fixing frames (12) which can move up and down, and the lower fixing frames (7) and the inner parts of the upper fixing frames (12) are respectively provided with a plurality of groups of first balls (11) and second balls (15) at equal angles.

2. The fixing tool for the transmission shaft straightening machine according to claim 1, characterized in that: the parallel multiunit stopper (2) that is fixed with in upper end of handling frame (1), the cross section of stopper (2) is "T" font, and is adjacent two sets of one side of stopper (2) is provided with servo motor (3), the function end of servo motor (3) is fixed with the lead screw, the lead screw both ends are first lead screw (4) and second lead screw (5) respectively, the inside at bearing frame (6) is installed to the other end of lead screw.

3. The fixing tool for the transmission shaft straightening machine according to claim 2, characterized in that: the servo motor (3) is installed on the processing frame (1), the bearing seat (6) is installed on the processing frame (1), the screw rods are located between the two groups of limiting blocks (2), and the directions of threads formed on the surfaces of the first screw rod (4) and the second screw rod (5) are opposite.

4. The fixing tool for the transmission shaft straightening machine according to claim 2, characterized in that: the lower end middle position of lower mount (7) is seted up threaded hole (8), corresponds lower mount (7) screw hole (8) internally mounted respectively install first lead screw (4) with second lead screw (5), two sets of spouts have been seted up to the lower extreme of lower mount (7), the spout is located the both sides of screw hole (8), the internally mounted of spout has stopper (2).

5. The fixing tool for the transmission shaft straightening machine according to claim 1, characterized in that: one side of lower mount (7) is the arc structure, and the shape is the arc form one side of lower mount (7) is inside to be waited for the angle and has seted up multiunit first recess (10), every group the inside of first recess (10) is all rolled and is installed a set of first ball (11), lower mount (7) with first ball (11) constitute revolution mechanic.

6. The fixing tool for the transmission shaft straightening machine according to claim 1, characterized in that: the upper end of the lower fixing frame (7) is fixed with a group of limiting bolts (9), the limiting bolts (9) are cylindrical, a group of limiting grooves (13) are formed in the upper fixing frame (12), the limiting bolts (9) are installed in the limiting grooves (13), and the cross section of each limiting bolt (9) is the same as that of each limiting groove (13).

7. The fixing tool for the transmission shaft straightening machine according to claim 5, wherein the fixing tool comprises: one side of upper mounting bracket (12) is the arc structure, and the shape is the arc form one side of upper mounting bracket (12) is inside to wait the angle and has seted up multiunit second recess (14), the inside movable mounting of second recess (14) has a set of second ball (15), the arc size that upper mounting bracket (12) one side set up with the arc size that lower mount (7) one side set up is the same.

8. The fixing tool for the transmission shaft straightening machine according to claim 5, wherein the fixing tool comprises: an air cylinder (16) is fixed at the outer end of one side of the lower fixing frame (7) far away from the first ball (11), and the telescopic end of the air cylinder (16) is installed at the lower end of the upper fixing frame (12).