CN217394082U

CN217394082U - Synchronous transmission mechanism of laser pipe cutting chuck

Info

Publication number: CN217394082U
Application number: CN202220053086.4U
Authority: CN
Inventors: 牟燕峰; 钟德峰; 朱其楚
Original assignee: Changzhou Biyoute Machinery Technology Co ltd
Current assignee: Changzhou Biyoute Machinery Technology Co ltd
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2022-09-09
Anticipated expiration: 2032-01-10

Abstract

The utility model provides a synchronous transmission mechanism of a laser pipe cutting chuck, which comprises a power connecting piece, a synchronous driving big gear connected with the power connecting piece in a transmission way, 4 driven gears respectively meshed with the synchronous driving big gear, 1 pusher dog which is fixedly arranged on each driven gear and rotates synchronously with the driven gear, and 4 sliding blocks respectively connected with 1 pusher dog in a transmission way; during the use, power connecting piece respectively fixedly sets up 1 on the piston rod of the actuating cylinder that laser pipe cutting chuck used had, 4 jack catchs that laser pipe cutting chuck had respectively fixedly set up 1 at 4 sliders, and the synchronous drive gear wheel includes annular body and the engaging lug integrative with the body or fixed connection, and the periphery interval of body is equipped with 4 sections driving teeth. The utility model discloses transmission efficiency and synchronous precision are high, adopt the utility model discloses a synchronous drive mechanism's laser pipe cutting chuck, the quilt processing pipe fitting size scope that is suitable for under the prerequisite of the same overall dimension is big, the sexual valence relative altitude.

Description

Synchronous transmission mechanism of laser pipe cutting chuck

Technical Field

The utility model relates to a laser pipe cutting chuck technical field, concretely relates to synchronous drive mechanism of laser pipe cutting chuck.

Background

The chuck is a necessary auxiliary tool for holding a workpiece to be machined when a laser cutting machine cuts and machines a pipe or a profile (hereinafter, collectively referred to as a pipe). The existing chuck generally comprises a front cover serving as an installation base, 2 groups of clamping jaws and 2 synchronizing mechanisms, wherein the front cover is used for clamping a machined pipe fitting in the vertical direction and the horizontal direction, the clamping jaws of each group are 2, the actuating cylinders are used for providing power for the actions of the 2 groups of clamping jaws, and the synchronizing mechanisms are arranged between the actuating cylinders and the two groups of clamping jaws and are used for enabling the 2 groups of clamping jaws to respectively move synchronously. The existing chuck has different transmission modes such as a gear rack transmission chuck, a flexible transmission chuck, a shifting fork transmission chuck and the like according to different transmission modes; the synchronization mechanism of the existing chuck is generally arranged additionally relative to the driving mechanism, for example, a light pipe cutting chuck disclosed in chinese patent document No. CN106984842B adopts a 4-bar linkage as the synchronization mechanism, and such chuck synchronization mechanism and clamping mechanism are arranged separately, and occupy the space of the pipe passing hole on the chuck when in use, so that the size of the applicable pipe is limited, the cost performance is not high, and the synchronization precision is limited. Chinese patent publication No. CN214684838U discloses a driving mechanism and synchronizing mechanism integrated shift fork type transmission chuck, wherein the cylinder power drives the jaws to move through a pulling claw, a connecting rod and a sliding block, and simultaneously the cylinder power drives a second rotating disc to rotate by relying on a first rotating disc through the pulling claw and a transmission rod to realize the motion synchronization between the jaws, which has the following problems: the driving and synchronizing mechanism adopts a groove shifting pin structure that corresponding slotted holes arranged on the shifting claw are respectively matched with the transmission rod and the connecting rod, on one hand, the shape structure of the shifting claw is relatively complex, the transmission rod and the connecting rod are longer due to the fact that the function needs to be installed at higher positions, jamming and action dead points exist in the using process, and the synchronizing precision is not high; on the other hand, the pusher dog interferes with a second rotating disc (namely a synchronizing ring) in the using process, so that the size of the synchronizing ring is limited, a round hole for placing a processed pipe fitting in the middle of the chuck cannot be enlarged, if the round hole is made into a square hole, the size can only be smaller, and the size range of the applicable pipe fitting is relatively smaller on the premise that the shape and the size are not changed, so that the cost performance of the chuck is influenced; in addition, the first rotating disc and the second rotating disc which are used as the synchronous mechanisms are in sliding friction with the hollow shaft, so that the transmission efficiency is not high enough, and in order to increase the wear resistance of the first rotating disc, the first rotating disc is usually required to be changed from a common aluminum part into a steel part, and the weight of the chuck is greatly increased. Therefore, the transmission mechanism and the synchronization mechanism of the existing chuck are improved, so that the transmission efficiency and the synchronization precision are higher, the influence of the transmission mechanism and the synchronization mechanism on the size range of the machined pipe fitting applicable to the chuck in the prior art is overcome, the cost performance of a single chuck is increased, and the technical problem to be solved in the industry is solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: aiming at the problems in the prior art, the synchronous transmission mechanism of the laser pipe cutting chuck with high transmission efficiency and high synchronous precision is provided, the laser pipe cutting chuck adopting the synchronous transmission mechanism is large in size range of the machined pipe fitting and high in cost performance on the premise of the same overall dimension.

The technical scheme of the utility model is that: the utility model discloses a synchronous drive mechanism of laser pipe cutting chuck, its structural feature is: the automatic transmission mechanism comprises a power connecting piece, a synchronous driving large gear in transmission connection with the power connecting piece, 4 driven gears respectively meshed with the synchronous driving large gear, 1 pusher dog which rotates synchronously with the driven gears and 4 sliding blocks which are respectively in transmission connection with the 1 pusher dog, wherein the 1 pusher dog is fixedly arranged on each driven gear; when the device is used, 1 piece of power connecting piece is fixedly arranged on a piston rod of a working cylinder of an applied laser pipe cutting chuck, and 1 piece of 4 clamping jaws of the laser pipe cutting chuck is fixedly arranged on 4 sliding blocks.

The further scheme is as follows: the power connecting piece comprises an ear seat and a push rod integrated with or fixedly connected with the ear seat, the power connecting piece is in transmission connection with the synchronous driving gearwheel through the push rod, and the power connecting piece is fixedly connected with a piston rod of the actuating cylinder through the ear seat.

The further scheme is as follows: the synchronous driving big gear comprises a circular body and more than 2 connecting lugs which are integrated with the body or fixedly connected with the body and protrude outwards, 4 sections of transmission teeth are arranged at intervals on the periphery of the body, and connecting holes are arranged on the connecting lugs; the synchronous driving gearwheel is correspondingly sleeved with the push rod through a connecting hole of a connecting lug of the synchronous driving gearwheel; the synchronous driving gearwheel is engaged with 1 driven gear by 4 sections of transmission teeth of the synchronous driving gearwheel.

The further scheme is as follows: the pusher dog comprises a pusher arm and a pusher rod which is arranged at the inner side of the pusher arm and extends forwards, the pusher dog is fixedly arranged on the driven gear from the outer side of the pusher arm and can rotate along with the driven gear, and each pusher dog is in transmission connection with 1 sliding block through the pusher rod.

The further scheme is as follows: a poking rod accommodating groove which is recessed forwards is formed in the rear end of the outer side of the sliding block; during the use, 4 sliders are connected with 4 groups of slide rails sliding fit that are equipped with respectively on the protecgulum that applied laser pipe cutting chuck had, and the driving lever of 4 pusher dogs passes 1 driving lever through hole that is equipped with on the protecgulum respectively and inserts in the driving lever holding tank of slider.

The further scheme is as follows: the rotary support bearing assembly is fixedly arranged on the rear end face of a front cover of the applied laser pipe cutting chuck during use and is positioned on more than 3 sets of rotary support bearing assemblies on the inner side of the body of the synchronous driving gearwheel for assisting the synchronous driving gearwheel to rotate.

The further scheme is as follows: the rotary supporting bearing assembly comprises a mandrel, a bearing which is sleeved with the mandrel and can rotate by the mandrel, and a gland for limiting the large synchronous driving gear; the outer ring of the bearing is contacted with the inner side of the main body of the synchronous driving gearwheel; when the device is used, the mandrel and the gland are respectively and fixedly arranged on the rear end face of a front cover of an applied laser pipe cutting chuck, and the gland is positioned on the rear side of a body of the large gear which is synchronously driven.

The utility model discloses positive effect has: (1) the utility model discloses an overall structure including the circular annular synchronous drive gear wheel drives 4 driven gear designs, makes its with the same type mechanism for CN 214684838U's prior art, and it has cancelled its sliding friction and the not high pusher dog of the complicated transmission efficiency of structure to the smooth and easy transmission efficiency of operation is high when using, and 1 set of synchronous drive mechanism can make 2 group 4 jack catchs can accurate synchronization at the during operation, and the synchronous precision improves by a wide margin than prior art. (2) Adopt the utility model discloses a laser pipe cutting chuck, compare with the chuck of the same kind among the prior art, owing to cancelled synchronous drive mechanism's first rotary disk and as rotating basic hollow shaft, thereby make the chuck under the unchangeable prerequisite of overall dimension, when the pipe fitting accommodation hole of chuck is made the square hole, the opposite side size of square hole can accomplish still to be great than prior art's round hole diameter, if the pipe fitting accommodation hole is made the round hole then increase more obviously than prior art's round hole diameter, thereby be suitable for under the prerequisite of the same overall dimension by the obvious increase of processing pipe fitting size range, show and promoted the adoption the utility model discloses a price/performance ratio of chuck. (3) Compared with the prior art, the utility model, collect drive mechanism and lazytongs in an organic whole, overall structure is simple relatively, and the cost is lower, and gear drive mode is nimble reliable.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention, which further illustrates the installation and connection relationship of the front cover, the sliding block and the clamping jaws of the chuck during application;

FIG. 2 is a schematic perspective view of FIG. 1;

FIG. 3 is a schematic structural view of the synchronous drive bull gear and the rotary support bearing assembly of FIG. 1;

FIG. 4 is a schematic view of the structure of FIG. 3 as viewed from the rear;

fig. 5 is a schematic structural diagram of another embodiment of the present invention.

The reference numbers in the above figures are as follows:

the power connecting piece 1, the ear seat 11; a push rod 12; the large gear 2, the body 21, the transmission teeth 21-1, the connecting lugs 22 and the connecting holes 22-1 are synchronously driven; the rotary support bearing assembly 3, the spindle 31, the bearing 32, the gland 33; a driven gear 4 on which a connecting shaft 41 is mounted; a pusher dog 5, a pusher arm 51, a pusher lever 52; the sliding block 6 is a deflector rod accommodating groove 61;

the pipe fitting comprises a front cover 100, a pipe fitting accommodating hole 100-1, a sliding rail 100-2 and a deflector rod through hole 100-3; a jaw 101 and a cylinder 102.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

(example 1)

In describing the orientation of the present embodiment, the direction in which fig. 1 is oriented is taken as the rear in the description, the direction opposite to the direction in which fig. 1 is oriented is taken as the front in the description, and the up-down and left-right directions in fig. 1 are still taken as the up-down and left-right directions in the description.

Referring to fig. 1 and 2, the synchronous transmission mechanism of the laser pipe cutting chuck of the present embodiment mainly comprises a power connector 1, a synchronous driving gearwheel 2, a rotary support bearing assembly 3, a driven gear 4, a pusher dog 5 and a slide block 6.

The power connecting piece 1 is used for realizing transmission between a power source and the synchronous driving gearwheel 2, and as a specific implementation mode, the power connecting piece 1 in the embodiment is formed by integrally or fixedly connecting an ear seat 11 and a push rod 12; in use, the power connector 1 is fixedly connected to the outer end of the piston rod of the cylinder 102 of the chuck used in the synchronous drive mechanism of the present embodiment. Each cylinder 102 is assigned 1 power connection element 1.

Referring to fig. 3 and 4, the synchronous driving gearwheel 2 comprises a circular main body 21 and more than 2 engaging lugs 22 integrally or fixedly connected with the main body 21 and protruding outwards, and the periphery of the main body 21 is provided with transmission teeth 21-1, preferably, the transmission teeth 21-1 are arranged at 4 intervals on the periphery of the main body 21; the connecting lug 22 is provided with a connecting hole 22-1, and the synchronous driving gearwheel 2 is correspondingly sleeved with the push rod 12 of the power connecting piece 1 through the connecting hole 22-1 of the connecting lug 22.

A rotary back-up bearing assembly 3 is preferably provided, the rotary back-up bearing assembly 3 being used to make the rotation of the bull gear 2 driven synchronously smoother; the rotary supporting bearing assembly 3 comprises a mandrel 31, a bearing 32 which is sleeved with the mandrel 31 and can rotate by the mandrel 31, and a gland 33 which is used for limiting the synchronous driving gearwheel; the outer ring of the bearing 32 is in contact with the inside of the body 21 of the bull gear 2. The rotary support bearing assemblies 3 are evenly spaced by more than 3 sets, 8 sets in this embodiment. When in use, the mandrel 31 and the gland 33 are respectively fixed on the rear end surface of the front cover 100 of the applied chuck, and the gland 33 is positioned at the rear side of the body 21 of the large synchronous driving gear 2.

Still referring to fig. 1 and 2, there are 4 driven gears 4, each driven gear 4 being provided with 1 mounting connection shaft 41; the 4 driven gears 4 are rotatably arranged on the 4 mounting connecting shafts 41 respectively, and the 4 driven gears 4 are meshed with 1 section of transmission teeth 21-1 of the body 21 of the large synchronous driving gear 2 respectively. In use, the 4 mounting connecting shafts 41 are respectively fixed to the rear end surface of the front cover 100 of the chuck to be used.

The pusher dog 5 is fixedly arranged on each driven gear 4 by 1 and is positioned at the front side of the driven gear 4, the pusher dog 5 comprises a pusher arm 51 and a pusher rod 52 which is arranged at the inner side of the pusher arm 51 and extends forwards, and the pusher dog 5 is fixedly arranged on the driven gear 4 from the outer side of the pusher arm 51 and can rotate along with the driven gear 4.

The rear end of the outer side of the sliding block 6 is provided with a forward concave deflector rod accommodating groove 61. The sliding blocks 6 are provided with 4 blocks, when in use, the 4 sliding blocks 6 are respectively connected with 4 groups of sliding rails 100-2 arranged on a front cover 100 of an applied chuck in a sliding fit manner, and the deflector rods 52 of the 4 pusher dogs 5 respectively penetrate through 1 deflector rod through hole 100-3 arranged on the front cover 100 and then are inserted into the deflector rod accommodating grooves 61 of the sliding blocks 6. The chuck has 4 claws 101, and 1 claw is fixedly mounted on each of the front end surfaces of the 4 sliders 6.

Still referring to fig. 1 and 2, the operation principle and process of the chuck using the synchronous driving mechanism of the laser pipe cutting chuck of the present embodiment are briefly described as follows.

When 2 actuating cylinders 102 (taking the cylinder as an example) synchronously feed air, piston rods of the actuating cylinders 102 extend outwards, the large synchronous driving gear 2 is pushed to rotate by depending on the rotating supporting bearing assemblies 3 through the lug seats 11 and the push rods 22 of the power connecting piece 1, the large synchronous driving gear 2 synchronously rotates to drive 4 driven gears 4 to rotate, and the shifting claws 5 fixed on the driven gears 4 synchronously rotate, the shifting rods 52 of the shifting claws 5 rotate in arc-shaped tracks in the shifting rod through holes 100-3 of the front cover 100, and the sliding blocks 6 synchronously move in a centripetal linear motion by depending on the corresponding sliding rails 100-2 of the front cover 100 through the matching of the shifting rod accommodating grooves 661 of the sliding blocks 6, so that the 4 clamping jaws 101 fixed on the sliding blocks 6 synchronously move in a centripetal clamping manner to clamp the processed pipe. When 2 actuating cylinders 5 are synchronously exhausted, the actuating cylinders act opposite to the air inlet, so that 4 clamping jaws 101 synchronously move away from the center, and the machined pipe fitting is loosened.

(example 2)

Referring to fig. 5, the synchronous transmission mechanism of the laser pipe cutting chuck of the present embodiment is otherwise the same as embodiment 1, except that: in this embodiment, the chuck applied to the synchronous transmission mechanism is provided with 4 actuating cylinders 102, and correspondingly, 4 actuating cylinders are also provided in the power connecting member 1 of the synchronous transmission mechanism in this embodiment, compared with embodiment 1, the power of the actuating cylinders 102 in this embodiment can be smaller than that in embodiment 1, and the rotation of the large gear 2 which is driven synchronously can be more stable and smooth.

The above embodiments are illustrative of the specific embodiments of the present invention, not restrictive of the present invention, and those skilled in the relevant art can also make various changes and modifications to obtain the equivalent technical solutions without departing from the spirit and scope of the present invention, so that all the equivalent technical solutions should be included in the scope of the present invention.

Claims

1. The utility model provides a synchronous drive mechanism of laser pipe cutting chuck which characterized in that: the automatic transmission mechanism comprises a power connecting piece, a synchronous driving large gear in transmission connection with the power connecting piece, 4 driven gears respectively meshed with the synchronous driving large gear, 1 pusher dog which rotates synchronously with the driven gears and 4 sliding blocks which are respectively in transmission connection with the 1 pusher dog, wherein the 1 pusher dog is fixedly arranged on each driven gear; when the device is used, 1 piece of power connecting piece is fixedly arranged on a piston rod of a working cylinder of an applied laser pipe cutting chuck, and 1 piece of 4 clamping jaws of the laser pipe cutting chuck is fixedly arranged on 4 sliding blocks.

2. The synchronous drive mechanism of the laser pipe cutting chuck as claimed in claim 1, wherein: the power connecting piece comprises an ear seat and a push rod integrated with or fixedly connected with the ear seat, the power connecting piece is in transmission connection with the large gear of the synchronous drive through the push rod of the power connecting piece, and the power connecting piece is fixedly connected with a piston rod of the actuating cylinder through the ear seat of the power connecting piece.

3. The synchronous drive mechanism of the laser pipe cutting chuck as claimed in claim 2, wherein: the synchronous driving large gear comprises a circular body and more than 2 connecting lugs which are integrated with the body or fixedly connected with the body and protrude outwards, 4 sections of transmission teeth are arranged on the periphery of the body at intervals, and connecting holes are formed in the connecting lugs; the synchronous driving gearwheel is correspondingly sleeved with the push rod through a connecting hole of a connecting lug of the synchronous driving gearwheel; the synchronous driving gearwheel is engaged with 1 driven gear by 4 sections of transmission teeth.

4. The synchronous drive mechanism of the laser pipe cutting chuck as claimed in claim 1, wherein: the pusher dog includes the shifting arm and locates the shifting lever that the inboard of shifting arm and stretched out forward, the pusher dog is fixed on the driven gear and can rotate along with the driven gear by its outside of shifting arm, each pusher dog is connected with 1 slider transmission respectively by its shifting lever.

5. The synchronous drive mechanism of the laser pipe cutting chuck as claimed in claim 4, wherein: a driving lever accommodating groove which is recessed forwards is formed in the rear end of the outer side of the sliding block; during the use, 4 sliders are connected with 4 groups of slide rails sliding fit that are equipped with respectively on the protecgulum that applied laser pipe cutting chuck had, and the driving lever of 4 pusher dogs passes 1 driving lever through hole that is equipped with on the protecgulum respectively and inserts in the driving lever holding tank of slider.

6. The synchronous transmission mechanism of the chuck for laser pipe cutting according to any one of claims 2 to 5, characterized in that: the rotary support bearing assembly is fixedly arranged on the rear end face of a front cover of the applied laser pipe cutting chuck and located on more than 3 sets of rotary support bearing assemblies which are arranged on the inner side of the body of the large synchronous driving gear and used for assisting the large synchronous driving gear to rotate.

7. The synchronous drive mechanism of the laser pipe cutting chuck as claimed in claim 6, wherein: the rotary support bearing assembly comprises a mandrel, a bearing which is sleeved with the mandrel and can rotate by the mandrel, and a gland which is used for limiting the synchronous driving gearwheel; the outer ring of the bearing is contacted with the inner side of the main body of the synchronous driving gearwheel; when the device is used, the mandrel and the gland are respectively fixedly arranged on the rear end face of a front cover of the applied laser pipe cutting chuck, and the gland is positioned on the rear side of the body of the synchronous driving gearwheel.