CN216178684U

CN216178684U - Mechanical fixture convenient to disassemble and move

Info

Publication number: CN216178684U
Application number: CN202122137516.9U
Authority: CN
Inventors: 刘业亮; 周明; 张江霞; 顾登亮
Original assignee: Jiangsu Vocational College of Electronics and Information
Current assignee: Jiangsu Vocational College of Electronics and Information
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-04-05
Anticipated expiration: 2031-09-06

Abstract

The utility model discloses a mechanical clamp convenient to disassemble and move, which comprises a shell and is characterized in that: the hydraulic ball valve is characterized in that an upper cover is connected to the top of the shell in a threaded manner, bolts are fixed to the periphery of the shell in a threaded manner, a claw head is axially connected to the middle section of each bolt, a pin is fixedly fastened to the top of each claw head, a bearing is connected to the middle of the pin, a gland shaft axially slides in the shell, a hydraulic bag is fixed to the middle section of the gland shaft, a spring is axially fixed to the upper end of the gland shaft, a gland plate is fixedly mounted at the lower end of the gland shaft, hydraulic cylinders are connected to pipelines at two ends of the hydraulic bag, pistons are connected to the inside of the hydraulic cylinders in a sliding manner, pull rods are fixed to the middle of the pistons in a threaded manner, and pipelines at two ends of the hydraulic bag are connected with ball valve assemblies.

Description

Mechanical fixture convenient to disassemble and move

Technical Field

The utility model relates to the technical field of packaging machinery, in particular to a mechanical clamp convenient to disassemble and move.

Background

The cap screwing claw head is a part of a cap screwing machine in a packaging machine, mainly comprises a main body part, a grabbing part and a transmission part, and various claw heads are used for adapting to various bottle types along with the continuous development of the packaging industry.

The existing claw head is suitable for products which are too single and complex in structure, and cannot complete grabbing actions on different products, so that the corresponding claw head needs to be replaced when different products are replaced on a production line, the production efficiency is greatly influenced, and the production cost is improved.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a mechanical clamp that is easy to disassemble and move, so as to solve the problems mentioned in the background art.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a mechanical fixture convenient to dismantle and remove, includes the shell, its characterized in that: the top threaded connection of shell has the upper cover, the threaded fixation all around of shell has the bolt, the both sides of bolt are connected with the claw head, the top of claw head is fixed with the fixed pin, the middle part of fixed pin is connected with the bearing, the internal connection of shell has the gland axle, the fixed surface of gland axle has the hydraulic bag, receives ascending power when the gland axle presses the product and when inside rebound along the shell, the bearing pressure rolls along the inclined plane of gland axle on the hydraulic bag surface, and the claw head upper end is outwards opened by the power of bearing, rotates along the bolt and makes the inside shrink of claw head lower extreme press from both sides tight product, and the liquid in the hydraulic bag flows along the roll of bearing, controls the interior liquid pressure of hydraulic bag, is convenient for control claw head clamping position.

According to the technical scheme, the spring is fixed at the upper end of the gland shaft, the gland plate is fixedly installed at the lower end of the gland shaft, the gland plate at the bottom of the gland shaft is stressed to move upwards when being pressed to a product, the gland shaft and the upper cover extrude the spring, after action is completed, the spring rebounds downwards to enable the gland shaft to return to an original position, the gland plate is made of nylon materials to protect the cover and avoid scratching, and the spring rebounds to reset so as to prepare for next action.

According to the technical scheme, the two end pipelines of the hydraulic bag are connected with hydraulic cylinders, pistons are slidably connected inside the hydraulic cylinders, pull rods are fixed in the middle of the pistons through threads, the hydraulic pressures at the two ends of the hydraulic bag can be controlled through the pull rods, when the pull rods drive the pistons to move downwards, liquid in the hydraulic cylinders flows towards the lower ends of the hydraulic bags through the hydraulic pipelines, the liquid pressure at the lower ends of the hydraulic bags under the influence of the lower stop blocks of the gland shaft is increased, the liquid at the lower ends of the hydraulic bags flows towards the hydraulic cylinders due to downward rolling of the bearings, but the liquid pressure at the lower ends of the hydraulic bags cannot be compressed due to too high liquid pressure, the bearings cannot roll downwards to indirectly control the clamping angle of the claw heads, when the pull rods drive the pistons to move upwards, the liquid in the hydraulic cylinders flows towards the upper ends of the hydraulic bags through the hydraulic pipelines, and the liquid pressure at the upper ends of the upper stop blocks of the gland shaft of the hydraulic bags is increased, the bearing rolls upwards and makes the liquid of hydraulic pressure bag upper end flow to the pneumatic cylinder, but the upper end fluid pressure because of the hydraulic pressure bag is too big can't compress again, make the bearing can't roll upwards again and the position of removal piston can control the angle of loosening of claw, when the pull rod keeps motionless, the liquid at the inside piston both ends of pneumatic cylinder can't flow, the liquid that leads to hydraulic pressure bag upper and lower both ends also can't flow, make the bearing can't roll by the influence of hydraulic pressure bag both ends pressure, thereby the tight angle of clamp of fixed claw, be convenient for satisfy the different tight angles of clamp of the required claw of different products.

According to the technical scheme, the pipeline connection in both ends of hydraulic pressure bag has the ball valve subassembly, ball valve subassembly and pneumatic cylinder pipeline parallel connection, the inside of ball valve subassembly is provided with the ball valve main part, the inside of ball valve main part is fixed with the spheroid, the welding of spheroidal top has the rotation handle, when control rotation handle makes the ball valve subassembly open, the interior liquid of hydraulic pressure bag will not form the return circuit through the pneumatic cylinder, when control rotation handle makes the ball valve subassembly close, the interior liquid of hydraulic pressure bag will receive pneumatic cylinder control, the dog head of being convenient for is applicable to the function switch under conventional and special product.

When the claw head clamps a product, the tension spring is also compressed, the tension spring rebounds to reset the claw head after the action is finished, the claw head is grabbed by the claw pad when contracting inwards, the reset of the claw head is facilitated, the product is protected, and the scratch is avoided.

According to the technical scheme, the middle section welded fastening of claw head has the extension spring, extension spring and shell welded connection, the bottom fixedly connected with claw pad of claw head presss from both sides tight product when the claw head, and the extension spring also is compressed, and the action is accomplished the back and is drawn back the spring and make the claw head reset, is snatched by claw pad contact product when the claw head inwards contracts, and the protection of being convenient for the restoration of claw head and product avoids the fish tail.

According to the technical scheme, the bearing and the gland shaft are of a matched structure, the bearing and the hydraulic bag are of a matched structure, the bearing moves on the inclined plane of the gland shaft through the hydraulic bag, so that the claw head can clamp and release a product, liquid in the hydraulic bags on two sides of the bearing flows along the rotation direction of the bearing, and the position of the bearing is conveniently limited through hydraulic pressure when a special product is met.

Compared with the prior art, the utility model has the following beneficial effects: in the utility model, the raw materials are mixed,

(1) by arranging the hydraulic bag control assembly, the clamping and opening angles of the claw heads can be adjusted by adjusting the position of the piston in the hydraulic cylinder and controlling the pressure at the two ends of the hydraulic bag, so that the requirements of different products on the clamping and opening angles of the clamp can be met;

(2) by arranging the ball valve assembly, the opening and closing of the ball valve can be controlled, so that the hydraulic bag is controlled by the hydraulic cylinder or automatically forms a loop through the ball valve, the clamp is suitable for function conversion between a T-shaped product and a conventional product, and different application scenes are met;

(3) through being provided with the gland axle and grabbing the lid subassembly, can reach and do not have hard contact when pushing down and snatching the product, by pressing lid piece and claw pad contact product, effectively snatch the effect that plays the protection product to the product, avoided the harm to the product.

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 overall structure of the present invention;

FIG. 2 is a schematic elevational sectional view of the present invention;

FIG. 3 is a schematic cross-sectional view of the ball valve of the present invention;

in the figure: 1. an upper cover; 2. a housing; 3. a claw head; 4. a spring; 5. a gland shaft; 6. a bearing; 7. a hydraulic bladder; 8. a tension spring; 9. a hydraulic cylinder; 10. a pull rod; 11. a bolt; 12. a fixing pin; 13. a claw pad; 14. pressing the cover plate; 15. a ball valve assembly; 16. a piston; 17. a ball valve body; 18. rotating the handle; 19. a sphere.

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.

Referring to fig. 1-3, the present invention provides the following technical solutions: the utility model provides a mechanical fixture convenient to dismantle and remove, includes shell 2, its characterized in that: the top of the shell 2 is in threaded connection with the upper cover 1, bolts 11 are fixed on the periphery of the shell 2 through threads, claw heads 3 are connected to two sides of each bolt 11, a fixing pin 12 is fixed on the top of each claw head 3, a bearing 6 is connected to the middle of each fixing pin 12, a gland shaft 5 is connected to the inside of the shell 2, a hydraulic bag 7 is fixed on the surface of each gland shaft 5, when the gland shaft 5 presses a product and moves upwards along the inside of the shell 2 under the action of an upward force, the bearing 6 presses the surface of the hydraulic bag 7 to roll along the inclined plane of the gland shaft 5, the upper end of each claw head 3 is outwards opened under the action of the bearing 6, the bolt 11 rotates to enable the lower end of each claw head 3 to contract inwards to clamp the product, liquid in each hydraulic bag 7 flows along with the rolling of the corresponding bearing 6, and the liquid pressure in each hydraulic bag 7 is controlled, so that the clamping position of each claw head 3 is convenient to control;

the spring 4 is fixed at the upper end of the gland shaft 5, the gland plate 14 is fixedly installed at the lower end of the gland shaft 5, when the gland plate 14 at the bottom of the gland shaft 5 presses a product, the product is stressed to move upwards, the gland shaft 5 and the upper cover 1 extrude the spring 4, after the action is completed, the spring 4 rebounds downwards to enable the gland shaft 5 to return to the original position, the gland plate 14 protects the cover from being scratched by a nylon material, and the spring 4 rebounds to reset so as to prepare for the next action;

the hydraulic pressure at the two ends of the hydraulic bag 7 is connected with the hydraulic cylinders 9 through pipelines, the piston 16 is connected in the hydraulic cylinder 9 in a sliding manner, the pull rod 10 is fixed in the middle of the piston 16 through threads, the hydraulic pressure at the two ends of the hydraulic bag 7 can be controlled through the pull rod 10, when the pull rod 10 drives the piston 16 to move downwards, the liquid in the hydraulic cylinder 9 flows to the lower end of the hydraulic bag 7 through the hydraulic pipeline, the liquid pressure at the lower end of the hydraulic bag 7 influenced by the lower stop block of the gland shaft 5 is increased, the bearing 6 rolls downwards to enable the liquid at the lower end of the hydraulic bag 7 to flow to the hydraulic cylinder 9, but the liquid pressure at the lower end of the hydraulic bag 7 cannot be compressed again due to too large liquid pressure, the bearing 6 cannot roll downwards to indirectly control the clamping angle of the claw 3, when the pull rod 10 drives the piston 16 to move upwards, the liquid in the hydraulic cylinder 9 flows to the upper end of the hydraulic bag 7 through the hydraulic pipeline, and the liquid pressure at the upper end of the hydraulic bag 7 influenced by the upper stop block on the gland shaft 5 is increased, the bearing 6 rolls upwards to enable liquid at the upper end of the hydraulic bag 7 to flow to the hydraulic cylinder 9, but the upper end of the hydraulic bag 7 cannot be compressed due to too high hydraulic pressure, so that the bearing 6 cannot roll upwards and the position of the movable piston 16 can control the loosening angle of the claw head 3, when the pull rod 10 is kept still, the liquid at two ends of the piston 16 in the hydraulic cylinder 9 cannot flow, so that the liquid at the upper end and the lower end of the hydraulic bag 7 cannot flow, the bearing 6 cannot roll due to the influence of the pressure at the two ends of the hydraulic bag 7, the clamping angle of the claw head 3 is fixed, and different clamping angles of the claw head 3 required by different products are met;

the pipeline at two ends of the hydraulic bag 7 is connected with a ball valve assembly 15, the ball valve assembly 15 is connected with the hydraulic cylinder 9 in parallel, a ball valve main body 17 is arranged inside the ball valve assembly 15, a ball body 19 is fixed inside the ball valve main body 17, a rotating handle 18 is welded at the top of the ball body 19, when the rotating handle 18 is controlled to open the ball valve assembly 15, liquid in the hydraulic bag 7 does not form a loop through the hydraulic cylinder 9, when the rotating handle 18 is controlled to close the ball valve assembly 15, the liquid in the hydraulic bag 7 is controlled by the hydraulic cylinder 9, and therefore the claw head is suitable for function switching under conventional and special products;

a tension spring 8 is fixedly welded at the middle section of the claw head 3, the tension spring 8 is welded with the shell 2, a claw pad 13 is fixedly connected to the bottom of the claw head 3, when the claw head 3 clamps a product, the tension spring 8 is also compressed, the tension spring 8 rebounds to reset the claw head 3 after the action is finished, and the claw head 3 is contacted with the product to be grabbed by the claw pad 13 when the claw head 3 contracts inwards, so that the claw head 3 can be reset and protected from being scratched;

bearing 6 is the cooperation structure with gland axle 5, bearing 6 is the cooperation structure with hydraulic bag 7, and bearing 6 separates hydraulic bag 7 and moves on gland axle 5's inclined plane for claw head 3 can press from both sides tightly and release the product, and liquid flows along with bearing 6 direction of rotation in the hydraulic bag 7 on bearing 6 both sides, is convenient for through hydraulic pressure restriction bearing 6 position when meetting special product.

The working principle is as follows: when the product is pressed by the gland shaft, the gland shaft is pressed by an upward force to move upwards along the inside of the shell, the bearing is pressed on the surface of the hydraulic bag to roll along the inclined plane of the gland shaft, the upper end of the claw head is outwards expanded by the force of the bearing, the lower end of the claw head is inwards contracted to clamp the product by rotating along the bolt, and the liquid in the hydraulic bag flows along with the rolling of the bearing to control the liquid pressure in the hydraulic bag, so that the clamping position of the claw head is conveniently controlled;

when the pressing cover sheet at the bottom of the pressing cover shaft presses a product, the pressing cover shaft moves upwards under stress, the pressing cover shaft and the upper cover extrude the spring, after the action is finished, the spring rebounds downwards to enable the pressing cover shaft to return to the original position, the pressing cover sheet is made of a nylon material and can protect the cover from being scratched, and the spring rebounds to reset so as to prepare for the next action;

the hydraulic pressure at two ends of the hydraulic bag can be controlled through the pull rod, when the pull rod drives the piston to move downwards, the liquid in the hydraulic cylinder flows to the lower end of the hydraulic bag through the hydraulic pipeline, the liquid pressure at the lower end of the hydraulic bag, which is influenced by the lower stop block of the gland shaft, is increased, the bearing rolls downwards to enable the liquid at the lower end of the hydraulic bag to flow to the hydraulic cylinder, but the liquid pressure at the lower end of the hydraulic bag is too high to be compressed, so that the bearing can not roll downwards to indirectly control the clamping angle of the claw head, when the pull rod drives the piston to move upwards, the liquid in the hydraulic cylinder flows to the upper end of the hydraulic bag through the hydraulic pipeline, the liquid pressure at the upper end of the hydraulic bag, which is influenced by the upper stop block of the gland shaft, is increased, the bearing rolls upwards to enable the liquid at the upper end of the hydraulic bag to flow to the hydraulic cylinder, but the liquid pressure at the upper end of the hydraulic bag is too high to be compressed, so that the bearing can not roll upwards and the position of the moving piston can control the loosening angle of the claw head, when the pull rod is kept still, liquid at two ends of a piston in the hydraulic cylinder cannot flow, so that the liquid at the upper end and the lower end of the hydraulic bag cannot flow, the bearing cannot roll under the influence of pressure at two ends of the hydraulic bag, the clamping angle of the claw head is fixed, and different clamping angles of the claw head required by different products can be met conveniently;

when the rotary handle is controlled to open the ball valve assembly, liquid in the hydraulic bag does not form a loop through the hydraulic cylinder, and when the rotary handle is controlled to close the ball valve assembly, the liquid in the hydraulic bag is controlled by the hydraulic cylinder, so that the claw head is suitable for function switching under conventional and special products;

when the claw head clamps a product, the tension spring is also compressed, the tension spring rebounds to reset the claw head after the action is finished, and the claw head is contacted with the product by the claw pad to grab when contracting inwards, so that the resetting of the claw head and the protection of the product are facilitated, and the scratch is avoided;

the bearing moves on the inclined plane of the gland shaft through the hydraulic bag, so that the claw head can clamp and release products, liquid in the hydraulic bags on two sides of the bearing flows along the rotation direction of the bearing, and the position of the bearing is conveniently limited through hydraulic pressure when the bearing meets special products.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A mechanical clamp convenient to disassemble and move comprises a shell (2), and is characterized in that: the top threaded connection of shell (2) has upper cover (1), the threaded fixation all around of shell (2) has bolt (11), the both sides of bolt (11) are connected with claw head (3), the top of claw head (3) is fixed with fixed pin (12), the middle part of fixed pin (12) is connected with bearing (6), the internal connection of shell (2) has gland axle (5), the fixed surface of gland axle (5) has hydraulic bladder (7).

2. A mechanical gripper for facilitating removal and movement according to claim 1, wherein: the spring (4) is fixed at the upper end of the gland shaft (5), and the gland plate (14) is fixedly installed at the lower end of the gland shaft (5).

3. A mechanical gripper for facilitating removal and movement according to claim 2, wherein: the hydraulic bag is characterized in that pipelines at two ends of the hydraulic bag (7) are connected with hydraulic cylinders (9), pistons (16) are connected inside the hydraulic cylinders (9) in a sliding mode, and pull rods (10) are fixed to the middle portions of the pistons (16) in a threaded mode.

4. A mechanical gripper for facilitating removal and movement according to claim 3, wherein: the hydraulic control ball valve is characterized in that pipelines at two ends of the hydraulic bag (7) are connected with ball valve assemblies (15), the ball valve assemblies (15) are connected with hydraulic cylinders (9) in parallel, a ball valve body (17) is arranged inside the ball valve assemblies (15), a ball body (19) is fixed inside the ball valve body (17), and a rotating handle (18) is welded at the top of the ball body (19).

5. A mechanical gripper for facilitating removal and movement according to claim 4, wherein: the middle section welded fastening of claw head (3) has extension spring (8), extension spring (8) and shell (2) welded connection, the bottom fixedly connected with claw pad (13) of claw head (3).

6. A mechanical gripper for facilitating removal and movement according to claim 5, wherein: the bearing (6) and the gland shaft (5) are in a matched structure, and the bearing (6) and the hydraulic bag (7) are in a matched structure.