CN210413402U

CN210413402U - Valve screw assembly machine

Info

Publication number: CN210413402U
Application number: CN201920682493.XU
Authority: CN
Inventors: 何国正
Original assignee: Yuhuan Guoda Valve Co ltd
Current assignee: Yuhuan Guoda Valve Co ltd
Priority date: 2019-05-14
Filing date: 2019-05-14
Publication date: 2020-04-28
Anticipated expiration: 2029-05-14

Abstract

The utility model discloses a valve screw assembly machine relates to a special machine tool, and its technical scheme main points are: the screw driver comprises a workbench and a screw feeding mechanism, wherein a sliding frame and a sliding seat are arranged on the workbench in a sliding manner, an air cylinder and a working motor are arranged on the sliding seat, a screw driver for screwing a screw is arranged at the output end of the working motor, the screw driver also comprises a lower clamp arranged on the workbench, a lower die cavity for embedding a workpiece is arranged on the lower clamp, and the lower clamp is hinged with the workbench through a hinge I arranged between the lower clamp and the workbench; the workbench is provided with a driving motor and a driving piece driven by the driving motor to rotate, and the driving piece is provided with a supporting rod used for abutting against the bottom wall of the lower clamp. When the screw assembling machine is used, the taking-out of the workpiece is labor-saving, and the screw assembling machine has the advantages of convenience in blanking and improvement of production efficiency; by arranging the upper clamp, the screw assembling machine can reliably position a workpiece; the valve is difficult to produce the position drunkenness when twisting the screw, and the valve yield that the equipment was accomplished is high, the fastness is good.

Description

Valve screw assembly machine

Technical Field

The utility model relates to a special machine tool, in particular to valve screw assembly machine.

Background

The existing valve comprises a valve body, a valve core and other components, wherein the valve body is divided into two parts, the valve body is buckled to form a valve whole after the components such as the valve core are assembled in the valve body, and the two parts of the valve body are fixed through screws.

The current chinese utility model patent with the grant publication number of CN203484893U discloses an automatic screw twisting machine, which comprises a fixing frame, a cylinder, a first sliding part, a second sliding part, an electric fixed-torque screwdriver, a screw rod, a clamp, a conduit and a vibration disc. When the automatic screwing machine works, screws to be screwed enter the vibration disc, and enter the inside of the clamp through the guide pipe after being sequenced by the vibration disc. And an air cylinder connected with an external control unit controls the sliding piece and the sliding piece to move in the three-dimensional direction of the X, Y, Z shaft, so that the screw to be screwed is conveyed to a preset position. The jaws of the clamp are then opened and the screw extends from the interior of the clamp to tighten the screw. After the screwing is finished, the screw rod retracts into the clamp, the clamp pliers are closed, and the next cycle of work is started.

The above prior art solutions have the following drawbacks: when screwing the screw process with this screw machine to the valve, generally use anchor clamps to fix a position the valve work piece, the valve work piece level is placed on anchor clamps, and in the valve work piece part embedding anchor clamps, the back is accomplished in the work piece processing, and the personnel need be followed and pulled out the work piece in the anchor clamps and carry out the unloading, and the unloading of work piece is comparatively hard.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a valve screw assembly machine, the unloading of work piece is comparatively laborsaving.

The above technical purpose of the present invention can be achieved by the following technical solutions: a valve screw assembly machine comprises a workbench and a screw feeding mechanism, wherein a sliding frame is arranged on the workbench in a sliding manner, a sliding seat is arranged on the sliding frame in a sliding manner, an air cylinder and a working motor driven by the air cylinder to slide are arranged on the sliding seat, a screwdriver used for screwing screws is arranged at the output end of the working motor, and the valve screw assembly machine further comprises a lower clamp arranged on the workbench, a lower die cavity for embedding a workpiece is arranged on the lower clamp, and the lower clamp is hinged with the workbench through a hinge I arranged between the lower clamp and the workbench; be equipped with driving motor on the workstation, by driving motor drive pivoted driving piece, be equipped with on the driving piece and be used for the pole that supports that offsets with lower anchor clamps diapire, work as when the driving piece rotates, support the pole and can order about down anchor clamps and rotate around hinge department.

Through above-mentioned technical scheme, after the personnel will wait to twist the work piece of screw and pack into die cavity down, balladeur train and slide can be through removing, the cylinder can be through flexible, make screw feed mechanism, screwdriver realize X, Y, Z triaxial direction's removal. The outlet of the screw feeding mechanism and the screwdriver can be sequentially moved to the accurate position of the lower clamp where the screw is to be screwed, the screw feeding mechanism outputs the screws one by one to complete automatic feeding of the screws, and then the working motor drives the screwdriver to rotate to complete screwing operation of a valve workpiece.

After the screw screwing process is completed, the personnel control the driving motor to work, the driving motor drives the driving piece to rotate, the supporting rod abuts against the bottom wall of the lower clamp, the supporting rod drives the lower clamp to rotate around the hinge when the bottom wall of the lower clamp slides, and the lower die cavity is inclined towards the outside. When the workpiece is blanked, because the lower clamp is already in an inclined state, a person can contact the upper end of the workpiece through fingers and then drive the workpiece to rotate around the lower end of the workpiece so that the workpiece is separated from the lower die cavity. Compared with the prior art, the screw assembling machine has the advantages that the unloading is convenient, and the production efficiency is improved.

Preferably, the device also comprises an upper clamp, wherein an upper die cavity for embedding the workpiece is arranged on the upper clamp, and a placing hole is formed in the upper clamp corresponding to the screw part of the workpiece; when the upper clamp is buckled on the lower clamp, the upper die cavity and the lower die cavity are combined to form a space for limiting a workpiece, and the axis of the placing hole is in the vertical direction.

Through the technical scheme, the space behind the lower die cavity and the upper die cavity which are combined can clamp and accurately position the workpiece, the placing hole can position the screw before screwing, and the reliability of the work of the screw assembling machine is improved.

Preferably, the upper clamp and the lower clamp are hinged through a hinge II arranged between the upper clamp and the lower clamp, and the hinge I and the hinge II are respectively positioned on two side walls of the lower clamp, which are mutually deviated.

Through the technical scheme, a person can complete the buckling or the separation of the upper clamp and the lower clamp by rotating the upper clamp, so that the clamping device is convenient; the upper clamp and the lower clamp can be accurately positioned after being buckled, and the upper clamp is not easy to drop and lose.

Preferably, the upper clamp is rotatably provided with a clamping block, the lower clamp is provided with a clamping groove for clamping the clamping block, and when the upper clamp is buckled on the lower clamp, the clamping block can be just clamped with the clamping groove.

Through above-mentioned technical scheme, after the work piece clamping was accomplished, before twisting the screw process, personnel can be with fixture block and draw-in groove joint, go up on the anchor clamps was fixed in down on the anchor clamps this moment, the steadiness of work piece clamping is high, and the work piece is being twisted difficult for producing spontaneous activity in the screw process.

Preferably, a spring is arranged between the upper clamp and the lower clamp, two ends of the spring respectively abut against the upper clamp and the lower clamp, and the upper clamp and the lower clamp are driven to be away from each other by the elasticity of the spring.

Through above-mentioned technical scheme, when the fixture block not with the draw-in groove joint, the elasticity of spring can order about the upper fixture and rotate and open die cavity down, and the personnel need not to support the upper fixture this moment and also can carry out the clamping to the work piece or take out, and is comparatively convenient.

Preferably, the number of the lower mold cavities is at least three.

Through above-mentioned technical scheme, can place a plurality of work pieces simultaneously between last anchor clamps and lower anchor clamps, can improve production efficiency.

Preferably, the workbench is provided with a conveyor belt driven by a motor to run, the conveyor belt is close to the hinge, and the outlet end of the conveyor belt abuts against the outer side wall of the workbench.

Through above-mentioned technical scheme, the driving piece orders about down anchor clamps and rotates the back around hinge one, and the lower die cavity slope of lower anchor clamps is towards the conveyer belt side, and personnel can conveniently take out the work piece this moment and place on the conveyer belt, and the conveyer belt is sent the work piece out the workstation automatically and is accomplished the unloading, and this screw twisting machine's production efficiency is higher.

Preferably, a baffle is fixed on the workbench, the baffle is positioned on one side of the conveyor belt, which is away from the lower clamp, and the baffle extends along the length direction of the conveyor belt.

Through above-mentioned technical scheme, the baffle is used for carrying on spacingly to the work piece on the conveyer belt, and when personnel carried out the unloading to the work piece, the baffle can prevent that the work piece from sliding away from the conveyer belt along the width direction of conveyer belt, improves the stability of work piece unloading.

To sum up, the utility model discloses the beneficial effect who contrasts in prior art does:

1. the taking-out of the workpiece is labor-saving, and the screw assembling machine has the advantages of convenience in blanking and improvement of production efficiency;

2. by arranging the upper clamp, the screw assembling machine can reliably position a workpiece;

3. through setting up the spring, go up anchor clamps, lower anchor clamps can open voluntarily when the work piece is gone up unloading.

Drawings

Fig. 1 is a perspective view of a valve screw assembly machine according to an embodiment;

FIG. 2 is a partial view of an embodiment;

fig. 3 is a working state diagram of the embodiment.

In the figure, 1, a workbench; 10. a screw feeding mechanism; 11. a carriage; 12. a slide base; 121. a cylinder; 122. a working motor; 123. a screwdriver; 2. a lower clamp; 21. a first hinge; 3. an upper clamp; 31. a second hinge; 22. a lower die cavity; 32. an upper mold cavity; 33. placing holes; 34. a clamping block; 23. a card slot; 4. a spring; 5. a drive motor; 6. a drive member; 61. a support rod; 13. a conveyor belt; 14. and a baffle plate.

Detailed Description

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

Referring to fig. 1, for the utility model discloses a valve screw assembly machine, including workstation 1 and screw feed mechanism 10, the slip is provided with balladeur train 11 on workstation 1, and the slip is provided with slide 12 on balladeur train 11, and balladeur train 11 and slide 12 are driven by servo motor (not shown in the figure) respectively and are removed, and the moving direction of balladeur train 11 is perpendicular with the moving direction of slide 12. The sliding base 12 is integrally higher than the table top of the workbench 1, an air cylinder 121 and a working motor 122 driven by the air cylinder 121 to slide are arranged on the sliding base 12 along the vertical direction, a screwdriver 123 for screwing screws is coaxially fixed at the output end of the working motor 122, and the end of the screwdriver 123 faces downwards vertically.

The screw feeding mechanism 10 includes conduits for screws to pass through one by one, the conduits are fixed on the slide carriage 12, an outlet of the conduit is located beside the screwdriver 123, the screw feeding mechanism 10 is prior art, and details are not described herein; the table-board of the working table 1 is provided with a lower clamp 2 for positioning a valve workpiece. The carriage 11 and the slide carriage 12 can move, and the air cylinder 121 can extend and contract, so that the duct outlet of the screw feeding mechanism 10 and the screw driver 123 can move X, Y, Z in three axial directions. The guide pipe outlet of the screw feeding mechanism 10 and the screw driver 123 can be sequentially moved to the accurate position of the screw to be screwed on the lower clamp 2, the screw feeding mechanism 10 outputs the screws one by one to complete automatic feeding of the screws, and then the working motor 122 drives the screw driver 123 to rotate to complete screwing operation of the valve workpiece.

Referring to fig. 1 and 2, the lower clamp 2 is hinged to the table 1 by a hinge one 21 provided therebetween, and the hinge one 21 is located at the bottom of the side wall of the lower clamp 2. The lower clamp 2 is rotatably provided with an upper clamp 3, the upper clamp 3 and the lower clamp 2 are hinged through a second hinge 31 arranged between the upper clamp 3 and the lower clamp, and the first hinge 21 and the second hinge 31 are respectively positioned on two side walls of the lower clamp 2, which deviate from each other.

Go up anchor clamps 3, lower anchor clamps 2 and be cuboid block, go up anchor clamps 3 and can pass through the terminal surface lock with lower anchor clamps 2, be equipped with the lower die cavity 22 that supplies the work piece embedding on lower anchor clamps 2, be equipped with the last die cavity 32 that supplies the work piece embedding on going up anchor clamps 3, lower die cavity 22, last die cavity 32 correspond half volume of work piece respectively, and the space after lower die cavity 22, last die cavity 32 make up can be tight and pinpoint the work piece clamp just. The number of the lower mold cavities 22 is at least three, four lower mold cavities 22 are arranged side by side in the embodiment, and the number and the positions of the upper mold cavities 32 correspond to the lower mold cavities 22 one by one. A plurality of workpieces can be placed between the upper clamp 3 and the lower clamp 2 at the same time, and the production efficiency can be improved.

The upper clamp 3 is provided with a placing hole 33 corresponding to the screw part of the workpiece, the placing hole 33 penetrates through the upper clamp 3, and the hole diameter of the placing hole 33 can be just used for the screw to pass through. When the upper clamp 3 is buckled on the lower clamp 2, the axes of the placing holes 33 are aligned to the positions of the screws to be screwed of the workpiece one by one along the vertical direction.

The upper clamp 3 is rotatably provided with a clamping block 34, the clamping block 34 is positioned on the side wall of the upper clamp 3 departing from the hinge II 31, the lower clamp 2 is provided with a clamping groove 23 for clamping the clamping block 34, and when the upper clamp 3 is buckled on the lower clamp 2, the clamping block 34 can be just clamped with the clamping groove 23. After the workpiece is clamped and installed and before the screw screwing process is carried out, a worker can clamp the clamping block 34 with the clamping groove 23 in a clamped mode, the upper clamp 3 is fixed on the lower clamp 2, the workpiece is clamped and installed stably, and spontaneous movement of the workpiece is not prone to occurring in the screw screwing process.

A spring 4 is arranged between the upper clamp 3 and the lower clamp 2, two ends of the spring 4 are respectively abutted against the upper clamp 3 and the lower clamp 2, the spring 4 is preset with an outward-expanding elastic force, and the upper clamp 3 is driven to rotate towards the direction far away from the lower clamp 2 by the elastic force of the spring 4. When the clamping block 34 is not clamped with the clamping groove 23, the elastic force of the spring 4 can drive the upper clamp 3 to rotate to open the lower die cavity 22, and at the moment, a person can clamp or take out a workpiece without supporting the upper clamp 3, so that the clamping is convenient.

Referring to fig. 1 and 3, the worktable 1 is further provided with a driving motor 5 and a driving member 6 driven by the driving motor 5 to rotate, and the driving member 6 is used for driving the lower clamp 2 to rotate. The driving motor 5 is a servo motor capable of rotating forward and backward, the output end of the driving motor 5 is connected with the rotating shaft of the driving part 6 through a speed reducer, the rotating shaft of the driving part 6 is axially along the length direction of the lower clamp 2, and the rotating shaft of the driving part 6 is positioned on the table top of the workbench 1 and deviates from the lower clamp 2. Normally, the driving member 6 is located below the working table 1, and the outer peripheral wall of the driving member 6 is arc-shaped. The driving piece 6 is provided with a propping rod 61 which is used for propping against the bottom wall of the lower clamp 2, and when the driving piece 6 rotates, the propping rod 61 can drive the lower clamp 2 to rotate around the first hinge 21.

The workbench 1 is further provided with a conveyor belt 13 driven by a motor to run, the conveyor belt 13 is close to the first hinge 21, the upper belt surface of the conveyor belt 13 is along the horizontal plane, the upper belt surface of the conveyor belt 13 is close to the table top of the workbench 1, and the outlet end of the conveyor belt 13 is close to the outer side wall of the workbench 1. After the work piece accomplished and twists the screw process, the personnel rotated anchor clamps 3 and opened die cavity 32 and lower die cavity 22, driving motor 5 ordered about driving piece 6 then and rotated, driving piece 6 ordered about down anchor clamps 2 through supporting pole 61 and rotated around a 21 department of hinge, the lower die cavity 22 slope of anchor clamps 2 was towards conveyer belt 13 side down this moment, the personnel can conveniently take out the work piece and place on conveyer belt 13 this moment, conveyer belt 13 sends out the work piece automatically that workstation 1 accomplishes the unloading, this production efficiency of twisting the screw machine is higher.

A baffle 14 is fixed on the workbench 1, the surface of the baffle 14 is perpendicular to the table surface of the workbench 1, the baffle 14 is positioned on one side of the conveyor belt 13, which is far away from the lower clamp 2, and abuts against the conveyor belt 13, and the baffle 14 extends along the length direction of the conveyor belt 13. The baffle 14 is used for spacing the work piece on the conveyer belt 13, and when personnel carried out the unloading to the work piece, baffle 14 can prevent that the work piece from sliding away from conveyer belt 13 along the width direction of conveyer belt 13, improves the stability of work piece unloading.

The working condition of the screw assembling machine is as follows: the upper and

lower clamps

3 and 2 are opened in advance, and the abutting rod 61 does not abut against the lower clamp 2. A person puts a workpiece to be screwed into the lower die cavity 22, then rotates the upper clamp 3 to be buckled with the lower clamp 2, then clamps the clamping blocks 34 into the clamping grooves 23 to finish clamping, and then screws are screwed.

After the screwing process is completed, the person rotates the fixture block 34 to unlock, and the upper clamp 3 spontaneously rotates away from the lower clamp 2 under the elastic force of the spring 4. Then the personnel control driving motor 5 to work, driving motor 5 drives driving piece 6 to rotate, and support rod 61 then supports the diapire of lower clamp 2, and support rod 61 drives lower clamp 2 to rotate around a hinge 21 when the diapire of lower clamp 2 slides, makes lower die cavity 22 incline to conveyer belt 13 side.

When the workpiece is blanked, because the lower clamp 2 is already in the inclined state, a person can contact the upper end of the workpiece by fingers and then drive the workpiece to rotate around the lower end of the workpiece, so that the workpiece is separated from the lower die cavity 22. Compared with the prior art, the blanking mode has the advantages that personnel can take out the workpiece from the lower clamp 2 more easily, and the blanking of the workpiece is simpler and more convenient.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a valve screw assembly machine, includes workstation (1) and screw feed mechanism (10), it is provided with balladeur train (11) to slide on workstation (1), it is provided with slide carriage (12) to slide on balladeur train (11), be equipped with cylinder (121) on slide carriage (12), by gliding work motor (122) of cylinder (121) drive, the output of work motor (122) is equipped with screwdriver (123) that are used for twisting the screw, characterized by: the fixture is characterized by further comprising a lower fixture (2) arranged on the workbench (1), wherein a lower die cavity (22) for embedding a workpiece is formed in the lower fixture (2), and the lower fixture (2) is hinged with the workbench (1) through a first hinge (21) arranged between the lower fixture and the workbench; be equipped with driving motor (5), by driving motor (5) drive pivoted driving piece (6) on workstation (1), be equipped with on driving piece (6) and be used for with support pole (61) that lower anchor clamps (2) diapire offseted, work as when driving piece (6) rotate, support pole (61) can order about down anchor clamps (2) around closing page or leaf (21) department and rotate.

2. The valve screw assembly machine of claim 1, further comprising: the workpiece clamping device is characterized by further comprising an upper clamp (3), wherein an upper die cavity (32) for embedding a workpiece is formed in the upper clamp (3), and a placing hole (33) is formed in the upper clamp (3) corresponding to a screw part of the workpiece; when the upper clamp (3) is buckled on the lower clamp (2), the upper die cavity (32) and the lower die cavity (22) are combined to form a space for limiting a workpiece, and the axis of the placing hole (33) is vertical.

3. The valve screw assembly machine of claim 2, wherein: the upper clamp (3) and the lower clamp (2) are hinged through a second hinge (31) arranged between the upper clamp and the lower clamp, and the first hinge (21) and the second hinge (31) are respectively located on two side walls of the lower clamp (2) which deviate from each other.

4. A valve screw assembly machine as claimed in claim 3, wherein: the upper clamp (3) is rotatably provided with a clamping block (34), the lower clamp (2) is provided with a clamping groove (23) for clamping the clamping block (34), and when the upper clamp (3) is buckled on the lower clamp (2), the clamping block (34) can be just connected with the clamping groove (23) in a clamping manner.

5. The valve screw assembly machine of claim 4, wherein: a spring (4) is arranged between the upper clamp (3) and the lower clamp (2), two ends of the spring (4) are respectively abutted against the upper clamp (3) and the lower clamp (2), and the upper clamp (3) and the lower clamp (2) are driven to be away from each other by the elastic force of the spring (4).

6. The valve screw assembly machine of claim 1, further comprising: the number of the lower mold cavities (22) is at least three.

7. The valve screw assembly machine of claim 1, further comprising: the automatic conveying device is characterized in that a conveying belt (13) driven by a motor to run is arranged on the workbench (1), the conveying belt (13) is close to the hinge I (21), and the outlet end of the conveying belt (13) abuts against the outer side wall of the workbench (1).

8. The valve screw assembly machine of claim 7, wherein: be fixed with baffle (14) on workstation (1), baffle (14) are located conveyer belt (13) and deviate from one side of lower anchor clamps (2), baffle (14) extend along the length direction of conveyer belt (13).