CN210550589U

CN210550589U - Mechanical clamping mechanism

Info

Publication number: CN210550589U
Application number: CN201921143426.7U
Authority: CN
Inventors: 孟凡姿; 张瑜
Original assignee: Jilin University of Architecture and Technology
Current assignee: Jilin University of Architecture and Technology
Priority date: 2019-07-20
Filing date: 2019-07-20
Publication date: 2020-05-19
Anticipated expiration: 2029-07-20

Abstract

The utility model discloses a mechanical clamping mechanism, including clamp splice, loop bar and motor, the outside threaded connection of clamp splice has the connecting piece, and the outside of connecting piece is fixed with the one end of branch, the cross position of branch rotates and is connected with the pivot, and the other end inboard of branch installs the spring, the other end of branch all articulates there is the vaulting pole, and the below of vaulting pole is connected with the piston rod, the loop bar is installed in the outside of piston rod, and the right side of loop bar is connected with the blast pipe, sealed valve is installed to the intermediate position of blast pipe, the bottom of loop bar is connected with the air pump, and the below of air pump is fixed with the carousel, the motor is connected in the below of carousel, and the outside of motor is fixed with the shell, the below symmetry of shell is fixed with the mounting panel. The clamping blocks with different shapes can be replaced by users according to actual use conditions, so that the whole clamping mechanism can play a good role in clamping and fixing clamped workpieces with different shapes.

Description

Mechanical clamping mechanism

Technical Field

The utility model relates to a mechanical fixture technical field specifically is a mechanical clamping mechanism.

Background

The jig is a device for fixing a processing object to a correct position for receiving construction or inspection in a machine manufacturing process, and is also called a jig.

The clamp in the existing market is inconvenient to replace a matched clamping block according to the structural shape of a clamped workpiece in the using process, and the existing clamp is inconvenient to use when clamping the workpiece and is not easy to drive the workpiece to rotate, so that a mechanical clamping mechanism is provided.

Disclosure of Invention

An object of the utility model is to provide a mechanical clamping mechanism to solve anchor clamps on the existing market that propose among the above-mentioned background art and be not convenient for in the use according to the structural shape by the clamp work piece, change the clamp splice of forming a complete set with it, and it is inconvenient to use when present anchor clamps press from both sides tight work piece, is difficult for driving the problem of work piece rotation operation.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a mechanical clamping mechanism, includes clamp splice, loop bar and motor, the outside threaded connection of clamp splice has the connecting piece, and the outside of connecting piece is fixed with the one end of branch, the cross position of branch rotates and is connected with the pivot, and the other end inboard of branch installs the spring, the other end of branch all articulates there is the vaulting pole, and the below of vaulting pole is connected with the piston rod, the loop bar is installed in the outside of piston rod, and the right side of loop bar is connected with the blast pipe, sealed valve is installed to the intermediate position of blast pipe, the bottom of loop bar is connected with the air pump, and the below of air pump is fixed with the carousel, the motor is connected in the below of carousel, and the outside of motor is fixed with the shell, the below symmetry of shell is fixed with.

Preferably, the inner structure of the clamping block is a semicircular structure, and the inner surface of the clamping block is connected with a soft cushion.

Preferably, the supporting rod is symmetrical left and right about the vertical center line of the rotating shaft, and an elastic structure is formed between the supporting rod and the spring.

Preferably, the number of the support rods is 2, and the connection mode between the support rods and the piston rod is hinged.

Preferably, the piston end of the piston rod is tightly attached to the loop bar, and the air pump is communicated with the loop bar.

Preferably, the bearing seat is sleeved outside the joint of the turntable and the motor, and the turntable and the motor are matched with each other to form a rotating structure.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the mechanical clamping mechanism is characterized in that a user can replace clamping blocks with different shapes according to actual use conditions, so that the whole clamping mechanism can play a good role in clamping and fixing clamped workpieces with different shapes, and the design structure of the thread is simple, so that the operation and the replacement are convenient;

2. the inner surfaces of the clamping blocks are inwards concave, the two clamping blocks are spliced together to form a circle so as to clamp a circular tubular object, and meanwhile, the soft cushion has certain elasticity and can reduce the damage of hard materials such as the clamping blocks and the like to a clamped piece;

3. set up whole fixture and can expand automatically and press from both sides tightly, the person of facilitating the use uses, sets up the output shaft of motor simultaneously and is connecting the carousel, makes things convenient for the motor to drive whole fixture rotatory through driving the carousel, accomplishes higher centre gripping demand.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a partial enlarged structure at A in FIG. 1 according to the present invention;

fig. 3 is a schematic view of the structure of the joint between the clamping block and the connecting member of the present invention.

In the figure: 1. a clamping block; 2. a connecting member; 3. a strut; 4. a rotating shaft; 5. a spring; 6. a stay bar; 7. a piston rod; 8. a loop bar; 9. an exhaust pipe; 10. sealing the valve; 11. an air pump; 12. a turntable; 13. a motor; 14. a housing; 15. mounting a plate; 16. a soft cushion.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a mechanical clamping mechanism comprises a clamping block 1, a connecting piece 2, supporting rods 3, a rotating shaft 4, springs 5, supporting rods 6, piston rods 7, a loop bar 8, an exhaust pipe 9, a sealing valve 10, an air pump 11, a rotary disc 12, a motor 13, a shell 14, a mounting plate 15 and a cushion 16, wherein the outer side of the clamping block 1 is in threaded connection with the connecting piece 2, one end of each supporting rod 3 is fixed to the outer side of the connecting piece 2, the rotating shaft 4 is rotatably connected to the cross position of each supporting rod 3, the springs 5 are mounted on the inner sides of the other ends of the supporting rods 3, the supporting rods 3 are bilaterally symmetrical about the vertical central line of the rotating shaft 4, an elastic structure is formed between each supporting rod 3 and each spring 5, and each spring 5 is connected to one end of each supporting rod 3 so that the two supporting rods 3 can be;

the other ends of the supporting rods 3 are hinged with supporting rods 6, piston rods 7 are connected below the supporting rods 6, the number of the supporting rods 6 is 2, the connecting mode between the supporting rods 6 and the piston rods 7 is hinged, the two supporting rods 6 can rotate, the supporting rods 6 and the supporting rods 3 can also rotate, the supporting rods 6 and the piston rods 7 can also rotate, so that the bottom end parts of the supporting rods 6 and the supporting rods 3 form a quadrilateral structure, the piston rods 7 can push open the lower end parts of the two supporting rods 3 conveniently, the clamping of the whole clamping mechanism is realized, the sleeve rod 8 is arranged on the outer side of the piston rod 7, the right side of the sleeve rod 8 is connected with an exhaust pipe 9, a sealing valve 10 is arranged in the middle of the exhaust pipe 9, the bottom of the sleeve rod 8 is connected with an air pump 11, a rotary table 12 is fixed below the air pump 11, the piston end of the piston rod 7 is tightly attached to the sleeve rod 8, and the, the air pump 11 is arranged to provide power between the piston rod 7 and the loop bar 8, so that the piston rod 7 can stretch out and draw back, the whole clamping mechanism can be automatically unfolded and clamped, and the use by a user is facilitated;

motor 13 connects in the below of carousel 12, and the outside of motor 13 is fixed with shell 14, the bearing frame has been cup jointed in the junction outside of carousel 12 and motor 13, and mutually support between carousel 12 and the motor 13 and constitute revolution mechanic, carousel 12 is being connected to the output shaft that sets up motor 13, make things convenient for motor 13 to drive whole fixture rotation through driving carousel 12, accomplish higher centre gripping demand, the below symmetry of shell 14 is fixed with mounting panel 15, the inner structure of clamp splice 1 is semi-circular structure, and the internal surface of clamp splice 1 is connected with cushion 16, the internal surface that sets up clamp splice 1 is inwards sunken, two clamp splice 1 concatenations can form a circular together, so that carry out the centre gripping to circular tubular object, cushion 16 has certain elasticity simultaneously, can reduce rigid material pair such as clamp splice 1 and cause the damage by the holder.

The working principle is as follows: for the mechanical clamping mechanism, firstly, bolts are screwed in the mounting plate 15 to fix the whole clamping device and the processing main body mechanism, then, according to the shape of a clamped workpiece, a clamping block 1 with a proper shape is selected, the clamping block 1 is rotated while the connecting piece 2 is kept still, and the clamping block 1 can be screwed down from the connecting piece 2, so that the clamping blocks 1 with different shapes are replaced, and if the clamped workpiece is tubular, the clamping block 1 with a circular inner part is selected;

firstly, the sealing valve 10 is opened, so that the gas in the sleeve rod 8 is exhausted from the exhaust pipe 9, the pressure in the sleeve rod 8 is reduced, the piston rod 7 retracts downwards, the two support rods 6 are driven to retract downwards, the two support rods 6 rotate relatively while the support rods 6 retract downwards, the two support rods and the support rods 3 also rotate relatively, the two support rods 6 are transversely separated and gradually close to the middle, meanwhile, the spring 5 is in an extension state at the beginning, so that the spring 5 generates a force contracting towards the middle, the bottom ends of the two support rods 3 are pulled to contract inwards, the support rods 3 rotate around the rotating shaft 4, the head end parts of the two support rods 3 extend, the two clamp blocks 1 which are originally in a clamping state are separated, a tubular workpiece is placed between the two clamp blocks 1, then the motor 13 in the shell 14 is started, and the shell 14 protects the motor 13, the motor 13 works to drive the rotary table 12 to rotate, and the rotary table 12 drives the clamping block 1 end of the whole clamping mechanism to rotate;

when the angle of the clamping block 1 rotates to be parallel to the tubular workpiece, the motor 13 is turned off, the sealing valve 10 is turned off again, the air pump 11 is started, the air pump 11 works to convey air to the inside of the loop bar 8, the pressure inside the loop bar 8 is increased, the piston rod 7 is pushed to move upwards by the pressure, the piston rod 7 props against the two support rods 6, so that the two support rods 6 are forked, meanwhile, the support rods 6 drive the bottom ends of the two support rods 3 to be unfolded, the distance between the two clamping blocks 1 is shortened by the head end of each support rod 3 according to the same operation principle until the tubular workpiece is clamped, at the moment, the tubular workpiece is contacted with the cushion 16, and the two ends of the rotating shaft 4 are respectively fixed on the inner wall of the loop bar 8, so that the support rods 3 can be kept from being ejected, the clamping and the unfolding of the.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a mechanical clamping mechanism, includes clamp splice (1), loop bar (8) and motor (13), its characterized in that: the outer side of the clamping block (1) is in threaded connection with a connecting piece (2), one end of a supporting rod (3) is fixed to the outer side of the connecting piece (2), a rotating shaft (4) is connected to the cross position of the supporting rod (3) in a rotating mode, a spring (5) is installed on the inner side of the other end of the supporting rod (3), supporting rods (6) are hinged to the other end of the supporting rod (3), a piston rod (7) is connected to the lower portion of each supporting rod (6), a sleeve rod (8) is installed on the outer side of the piston rod (7), an exhaust pipe (9) is connected to the right side of the sleeve rod (8), a sealing valve (10) is installed at the middle position of the exhaust pipe (9), an air pump (11) is connected to the bottom of the sleeve rod (8), a rotary table (12) is fixed to the lower portion of the air pump (11), a motor (13) is connected to the lower portion, and mounting plates (15) are symmetrically fixed below the shell (14).

2. A mechanical clamping mechanism according to claim 1, wherein: the inner structure of the clamping block (1) is of a semicircular structure, and the inner surface of the clamping block (1) is connected with a cushion (16).

3. A mechanical clamping mechanism according to claim 1, wherein: the support rods (3) are bilaterally symmetrical about the vertical center line of the rotating shaft (4), and an elastic structure is formed between the support rods (3) and the spring (5).

4. A mechanical clamping mechanism according to claim 1, wherein: the number of the support rods (6) is set to be 2, and the connection mode between the support rods (6) and the piston rod (7) is hinged.

5. A mechanical clamping mechanism according to claim 1, wherein: the piston end of the piston rod (7) is tightly attached to the loop bar (8), and the air pump (11) is communicated with the loop bar (8).

6. A mechanical clamping mechanism according to claim 1, wherein: the bearing seat is sleeved on the outer side of the joint of the rotary table (12) and the motor (13), and the rotary table (12) and the motor (13) are matched with each other to form a rotating structure.