Disclosure of Invention
In order to solve the defects in the prior art, the application provides a valve body assembly production line, which can realize continuous and automatic assembly of valve seats and has higher assembly efficiency; and the damage to the rubber in the assembly process is small, and the sealing precision of the assembled valve body is high.
The application aims to achieve the aim, and the aim is achieved by the following technical scheme:
the valve body assembly production line comprises a material arranging channel, a positioning platform, a rubber feeding mechanism and a mounting mechanism, wherein the material arranging channel is an inclined slideway, the tail end of the material arranging channel is provided with a material pushing channel, the material pushing channel is vertical to the material arranging channel, the end part of the material pushing channel is provided with a material pushing cylinder, the front end of a piston rod of the material pushing cylinder is provided with a material pushing head, the positioning platform is arranged at the tail end of the material pushing channel, two sides of the positioning platform are provided with clamp cylinders, the front end of the piston rod of the clamp cylinder is provided with a clamp head matched with the bottom surface of the valve body, the bottom surface of the positioning platform is provided with a pair of sliding grooves, the lower part of the positioning platform is provided with a material pushing belt, the upper part of the clamp cylinder is provided with an extension frame, the extension frame is provided with an extension cylinder and an extension sliding rail, the utility model provides a rubber feeding mechanism, including stretching slide rail, stretching cylinder's piston rod front end and pressing seat rear side fixed connection, the vertical pressing cylinder that sets up on the pressing seat, set up the lamination piece that suits with the rubber ring on the piston rod of pressing cylinder, rubber feed mechanism includes the feed bin, the rubber stacks in the feed bin, the feed bin bottom is the blanking mouth, blanking mouth is apart from the thickness of a rubber of mesa, feed cylinder is set up to feed bin one side, the piston rod front end of feed cylinder sets up the loading board that suits with the rubber, the installation mechanism includes linear displacement mechanism, linear displacement mechanism spans between locating platform and rubber feed mechanism, the last elevating system that sets up of linear displacement mechanism, the last material loading pole that sets up of elevating system, the material loading pole bottom sets up the collar, be circumference evenly provided with a plurality of grip blocks on the collar, the middle part of centre gripping piece is articulated with the collar, the setting runs through the cylinder in the collar, all set up the spacing collar on the piston rod that runs through the cylinder both ends, the spacing collar suits with the centre gripping piece inboard.
The material pushing device is characterized in that a baffle is arranged at the connecting position of the tail end of the material pushing channel in a sliding manner, a spring is arranged between the baffle and the material pushing channel, the baffle is used for blocking the material pushing channel, and when the material pushing cylinder is in a contracted state, the material pushing head is used for opening the baffle.
The width of reason material way suits with valve body bottom surface diameter, reason material says that the upper reaches is connected vibration charging tray, reason material says that the front end articulates the guide plate, connect the water conservancy diversion motor on the articulated shaft of guide plate.
The push belt is characterized in that tensioning wheels are arranged on two sides of the push belt, the push belt is tensioned on the two tensioning wheels, one of the tensioning wheels is connected with a push motor in a rotating shaft, the push plates are arranged on two sides of the push belt respectively, the push plates are in sliding fit with the sliding grooves, and when the push plates are pushed to be arranged above, the push plates are exposed above the sliding grooves.
The linear displacement mechanism adopts hold-in range mechanism, elevating system includes the lifting seat, fixed lead screw nut and the sliding sleeve of setting on the lifting seat, the material loading pole promptly with sliding sleeve sliding connection, the material loading pole middle part sets up the connecting seat, the lifting seat top sets up the axle bed, rotate between axle bed and the connecting seat and connect the lifting screw, the lifting screw cooperatees with lead screw nut, the lifting screw top sets up elevator motor.
And a limiting block is arranged in the middle of the outer side of the clamping piece.
The bottom of the clamping piece is provided with a slope which is inclined upwards and inwards, and the slope is suitable for chamfering the bottom of the valve body.
Compared with the prior art, the application has the beneficial effects that:
the application realizes the automatic assembly of the valve rubber, reduces the participation of manpower, and ensures that the whole assembly process is more standardized and the assembly progress is smoother. Through the cooperation of conveying equipment, the positioning clamping of valve body and the snatching of rubber have been improved assembly efficiency to completion that can be quick. Before assembling, the rubber is supported in advance, so that the excessive weight of the rubber and the valve body can be avoided, the rubber can not excessively contact and rub with the valve body in the press fit assembly process, the abrasion of the rubber is reduced, the sealing effect of the assembled product is better, and the consistency of the product is better.
Detailed Description
The application will be further described with reference to the accompanying drawings and specific embodiments. It is to be understood that these examples are illustrative of the present application and are not intended to limit the scope of the present application. Further, it will be understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the application, and equivalents thereof fall within the scope of the application as defined by the claims.
As shown in figures 1-8, the valve body assembly production line comprises a material arranging channel 1, a positioning platform 2, a rubber feeding mechanism 3 and a mounting mechanism 4. Each action element is controlled by the controller. The material arranging channel 1 is an inclined slideway, valve bodies are arranged in the material arranging channel 1, the width of the material arranging channel 1 is slightly larger than the diameter of the bottom surface of the valve seat, and the bottom surfaces of the valve bodies are downwards arranged in the material arranging channel 1. Specifically, the valve body in the material arranging channel 1 can be fed through the vibration feeding disc. The upstream of the material arranging channel 1 is connected with a vibration feeding disc, and a discharge hole of the vibration feeding disc is connected with the material arranging channel 1, so that a valve body is continuously conveyed for the material arranging channel 1. The front end of the material arranging channel 1 is hinged with a guide plate 15, and a hinge shaft of the guide plate 15 is connected with a guide motor 16. The sensor is arranged at the upstream part of the material arranging channel 1, when the sensor detects that the valve body is fully loaded in the material arranging channel 1, the controller controls the flow guiding motor 16 to drive the flow guiding plate 15 to seal the material arranging channel 1, and the conveyed valve body falls back into the vibration disc feeding machine again. Through the automatic feeding of this kind of feed mechanism, can guarantee that the valve body is in the full load state all the time in the reason material way 1, reduce the participation degree of manpower, improve material loading efficiency.
The positioning platform 2 is used as a valve body for rubber mounting, a pushing channel 11 is connected between the material arranging channel 1 and the positioning platform 2, and the pushing channel 11 is connected to the tail end of the material arranging channel 1. The pushing channel 11 is perpendicular to the material arranging channel 1, a pushing cylinder 12 is arranged at the end part of the pushing channel 11, and a pushing head 13 is arranged at the front end of a piston rod of the pushing cylinder 12. When the pushing cylinder 12 is in a contracted state, the pushing head 13 is positioned at the rear side of the material arranging channel 1 to open a connecting port between the material arranging channel 1 and the material pushing channel 11, and the valve body slides into the material pushing channel 11 under the action of gravity. The positioning platform 2 is connected to the tail end of the pushing channel 11, and the valve body can be pushed onto the positioning platform 2 by the pushing head 13 through the stretching action of the pushing cylinder 12 for clamping and fixing. In order to avoid interference of the valve body caused by continuous sliding of the valve body when the valve body is pushed by the pushing cylinder 12, a baffle plate 14 is slidably arranged at the connecting part of the pushing channel 11 and the tail end of the material arranging channel 1, a spring is arranged between the baffle plate 14 and the pushing channel 11, and the baffle plate 14 is used for blocking the material arranging channel 1. When the pushing cylinder 12 is in a contracted state, the pushing head 13 pushes the partition plate so as to open the partition plate 14. After the pushing cylinder 12 drives the pushing head 13 to push out the valve body, the partition 14 resets under the action of the elasticity of the spring to seal the tail end of the material arranging channel 1.
More specifically, in order to ensure that the valve body can be accurately pushed to the clamping position of the positioning platform 2 by the pushing head 13, the pushing channel 11 is slightly larger than the bottom surface diameter of the valve body, and the front side of the pushing head 13 is an arc edge consistent with the contour of the bottom surface of the valve body, so that the valve body is relatively positioned in the pushing process of the valve body.
The two sides of the positioning platform 2 are provided with clamp cylinders 21, and the two clamp cylinders 21 are oppositely arranged. The front end of a piston rod of the clamp cylinder 21 is provided with a clamp head 22 matched with the bottom surface of the valve body, the inner side of the clamp head 22 is provided with a notch corresponding to the outline of the bottom surface of the valve body, and the clamp head 22 can position and clamp the valve body through the stretching action of the clamp cylinder 21.
The bottom surface of the positioning platform 2 is provided with a pair of sliding grooves 23, and the tail end of the positioning platform 2 is provided with a diversion slide 6. A pushing belt 24 is arranged below the positioning platform 2, and a pushing plate 25 matched with the sliding groove 23 is arranged on the pushing belt 24. Specifically, tensioning wheels are installed on two sides of the pushing belt 24, the pushing belt 24 is tensioned on the two tensioning wheels, one of the tensioning wheels is connected with a pushing motor in a rotating shaft, and pushing plates 25 are arranged on two sides of the pushing belt 24 in a separated mode. The pushing motor drives the pushing belt 24 to circularly rotate, so that the pushing plate 25 is driven to circularly rotate. The push plate 25 is in sliding engagement with the chute 23, the push plate 25 being exposed above the chute 23 when the push plate 25 is brought up by the pusher belt 24. The assembled valve body can be pushed into the diversion slide 6 by the driving of the pushing belt 24. The tail end of the diversion slide 6 is connected with conveying equipment, so that the assembled valve body can be transported to a packaging procedure.
An extension frame 5 is arranged above the clamp cylinder 21, and the extension frame 5 is fixed with the positioning platform 2. The extension frame 5 is provided with an extension cylinder 51 and an extension slide rail 52, the extension slide rail 52 is provided with a pressing seat 53 in a sliding manner, and the front end of a piston rod of the extension cylinder 51 is fixedly connected with the rear side of the pressing seat 53. By extending the slide rail 52, the pressing seat 53 can be carried and guided, so that the pressing action of the pressing cylinder 54 mounted subsequently is stably supported. Specifically, the pressing seat 53 has an extension sleeve slidably matched with the extension slide rail 52, so that the pressing seat 53 can extend to the distal end of the extension slide rail 52 to press and mount the rubber, thereby avoiding the interference between the extension slide rail 52 and the workpiece due to overlong extension slide rail 52.
The pressing seat 53 is vertically provided with a pressing cylinder 54, and a piston rod of the pressing cylinder 54 is provided with a pressing sheet 55 which is matched with the rubber ring. The pressing piece 55 is used for contacting with the rubber, and the rubber can be pressed onto the valve body by the pressing piece 55 through the stretching action of the pressing cylinder 54.
The rubber feeding mechanism 3 comprises a storage bin 31, the width of the storage bin 31 is slightly larger than the diameter of the rubber, and the rubber is stacked in the storage bin 31. The bottom of the stock bin 31 is provided with a blanking port, and the blanking port is one rubber thickness away from the table top. A feeding cylinder 32 is arranged on one side of the storage bin 31, and a feeding plate 33 which is matched with the rubber is arranged at the front end of a piston rod of the feeding cylinder 32. The rubber falls from the material falling opening under the action of self gravity, and then the rubber is pushed to the grabbing position by the extending action of the feeding cylinder 32 through the feeding plate 33. When the feeding cylinder 32 is contracted, the blanking port is exposed, and then the rubber sheet continues to fall, and the next stretching action of the feeding cylinder 32 is waited for pushing the rubber sheet out to a position to be grasped.
The mounting mechanism 4 comprises a linear displacement mechanism 41, the linear displacement mechanism 41 spans between the positioning platform 2 and the rubber feeding mechanism 3, a lifting mechanism 42 is mounted on the linear displacement mechanism 41, and a feeding rod 43 is arranged on the lifting mechanism 42. The linear displacement mechanism 41 adopts a synchronous belt mechanism, and a driving motor of the synchronous belt mechanism adopts a servo motor. The lifting mechanism 42 can be driven to accurately displace on the linear displacement mechanism 41 by driving the operation of the synchronous belt mechanism through the servo motor, so that fixed-point grabbing and fixed-point putting down of the rubber can be realized. The lifting mechanism 42 comprises a lifting seat 421, the lifting seat 421 is in sliding fit with a sliding rail of the synchronous belt mechanism, and the top of the lifting seat 421 is fixedly connected with a point on the synchronous belt, so that the synchronous belt drives the lifting seat 421.
The lifting seat 421 is fixedly provided with a screw nut and a sliding sleeve, and the feeding rod 43 is in sliding connection with the sliding sleeve. The middle part of the feeding rod 43 is provided with a connecting seat, the top of the lifting seat 421 is provided with a shaft seat, a lifting screw 422 is rotationally connected between the shaft seat and the connecting seat, the lifting screw 422 is matched with a screw nut, and the top of the lifting screw 422 is provided with a lifting motor 423. The lifting screw 422 is driven to rotate by the lifting motor 423, and the sliding of the feeding rod 43 in the sliding sleeve is realized by utilizing the cooperation of the lifting screw 422 and a screw nut.
Specifically, the bottom of the feeding rod 43 is provided with a mounting ring 44, the mounting ring 44 is provided with a plurality of clamping pieces 45 uniformly arranged on the circumference, and the middle part of each clamping piece 45 is hinged with the mounting ring 44. The mounting ring 44 is internally provided with a penetrating cylinder 46, piston rods at two ends of the penetrating cylinder 46 are respectively connected with a limit ring 47, and the limit rings 47 are adapted to the inner sides of the clamping pieces 45. Specifically, the inner side of the clamping piece 45 is a triangle with a middle high and two low ends, and when the penetrating cylinder 46 extends downwards to a maximum state, the upper limit ring 47 pushes the top of the clamping piece 45, so that the clamping piece 45 is in a conical shape with a wide upper part and a narrow lower part, and the clamping of the rubber is facilitated. When the penetrating cylinder 46 extends upward to the maximum, the lower stopper 47 pushes the bottom of the holding piece 45, so that the holding piece 45 has a tapered shape with a slightly narrower upper part and a slightly wider lower part, and the stopper 47 is supported. The middle part in the outer side of the clamping piece 45 is provided with a limiting block, and the limiting block limits the rubber and prevents the rubber from separating from the upper part of the clamping piece 45.
More specifically, the through cylinder 46 has two stretching actions in the downward direction, when the clamping piece 45 is used to clamp the rubber, the through cylinder 46 extends in the downward direction, and at this time, the overall diameter of the bottom of the clamping piece 45 is smaller than the inner diameter of the rubber, so that the clamping piece 45 can be inserted into the rubber, and then the through cylinder 46 is controlled to extend in the upward direction, so that the lower side of the clamping piece 45 is opened to prop up the rubber, and the clamping of the rubber is realized. When the rubber sheet is driven to move to the upper part of the valve body, only a section of extension is needed to be carried out downwards through the air cylinder 46, the clamping piece 45 is abutted against the bottom chamfer of the valve body at the moment, the bottom diameter of the clamping piece 45 is slightly smaller than the top diameter at the moment, the rubber sheet slowly slides onto the valve body on the clamping piece 45 under the elastic action, and then the pressing piece 55 is driven to press the rubber sheet downwards through the pressing cylinder 54, so that the rubber sheet is smoothly transited into the mounting groove on the valve body. The rubber can be supported by the tensioning action of the clamping piece 45, so that the rubber and the valve body can be prevented from being excessively extruded to damage when the rubber is pressed onto the valve body.
The bottom of the clamping piece 45 is provided with a slope inclined inwards and upwards, and the slope is matched with the valve body bottom chamfer, so that the clamping piece 45 can be in smoother butt joint with the valve body bottom chamfer, and the rubber can be conveniently and smoothly transferred into the mounting groove of the valve body from the clamping piece 45.
Specifically, when the valve body is installed, the method for assembling the rubber by using the device is as follows:
firstly, the valve body is fed into the material arranging channel 1, and the rubber is fed into the storage bin 31. The valve body is pushed onto the positioning platform 2 by the pushing cylinder 12 through the pushing head 13, the pushing cylinder 12 is contracted, and the valve body at the lowest part on the material arranging channel 1 continuously falls onto the material pushing channel 11 under the action of gravity. The clamp cylinder 21 is then extended and the bottom of the valve body is clamped by the clamp head 22. At the same time, the feeding cylinder 32 stretches, the rubber is pushed to move to the position to be grabbed by the feeding plate 33, and after the feeding cylinder 32 contracts, the rubber in the storage bin 31 falls down by self under the action of gravity. Then the linear displacement mechanism 41 drives the lifting mechanism 42 to move to the upper end of the rubber sheet to be grabbed, the lifting mechanism 42 falls down, and the penetrating cylinder 46 is in a state of extending downwards by two sections, and the clamping sheet 45 is inserted into the rubber sheet. Then, the air cylinder 46 is extended upward, and the holding piece 45 is opened downward to hold the rubber sheet up. Then the lifting mechanism 42 drives the rubber to rise, the linear displacement mechanism 41 drives the rubber to move to the upper part of the valve body which is clamped and positioned, then the lifting mechanism 42 descends, and meanwhile the penetrating cylinder 46 is in a downward extending state, so that the bottom of the clamping piece 45 is in chamfer butt joint with the bottom of the valve body, and the rubber starts to slide into the mounting groove of the valve body under the elastic action of the rubber. Simultaneously, the stretching cylinder 51 pushes the pressing seat 53 to move towards the direction of the valve body, and meanwhile, the pressing cylinder 54 drives the pressing sheet 55 to press downwards, and the pressing sheet is utilized to press the rubber, so that the rubber is transferred into the rubber mounting groove of the valve body. After the assembly is completed, the lifting mechanism 42 is lifted, the pressing cylinder 54, the stretching cylinder 51 and the clamp cylinder 21 are reset, the pushing belt 24 drives the pushing plate 25 to rotate for one circle, and the assembled valve body is pushed onto the diversion slide 6 to slide down.