CN214642017U

CN214642017U - Rotary fixture based on valve body milling turntable

Info

Publication number: CN214642017U
Application number: CN202120606134.3U
Authority: CN
Inventors: 庄晓伟; 孙跃; 张静; 田为刚
Original assignee: Jiangsu Longcheng Precision Forging Group Co ltd
Current assignee: Jiangsu Longcheng Precision Forging Group Co ltd
Priority date: 2021-03-25
Filing date: 2021-03-25
Publication date: 2021-11-09
Anticipated expiration: 2031-03-25

Abstract

The utility model relates to a rotary fixture based on valve body mills processing revolving stage, including setting up at four epaxial revolving plate, valve body and positioning and clamping device, both sides are equipped with four positioning and clamping device respectively above the revolving plate, positioning and clamping device is by base, pull rod, crank, rectangle spring, ejector pin, first to the intermediate pressure board, second to the intermediate pressure board, swing pressure head, round pin axle, rotatory jar, hydro-cylinder cushion, support cylinder, float head, positioning disk, locating pin, prevent changeing piece, flat clamp plate, round pin axle, hydro-cylinder installation piece, push away jar and oil circuit piece and constitute. The utility model provides a gyration anchor clamps based on valve body mills processing revolving stage belongs to general machinery, structurally comprises gyration board and positioning and clamping device, novel structure, the utility model discloses can be used to the valve body processing occasion of many quantities and multiple operation, the device is simple, and the commonality is strong, has increased substantially machining efficiency, economic benefits.

Description

Rotary fixture based on valve body milling turntable

Technical Field

The utility model belongs to the field of automated machine, a valve body mills processingequipment is related to, specific saying so relates to a rotary fixture based on valve body mills processing revolving stage.

Background

At present, the rotary clamp for drilling and milling R4.5 semi-circles of valve bodies of various models and drilling and milling side threaded holes is the same according to blanks, corresponding rotary clamps are designed for valve bodies of different models, if multiple sets of rotary clamps are designed and manufactured, the machining cost is increased undoubtedly, the flexibility is low, and the efficiency is not obvious.

SUMMERY OF THE UTILITY MODEL

The utility model aims at polytypic valve body processing, accomplish on a plurality of rotary clamp, work efficiency is low, the poor scheduling problem of flexibility, a rotary clamp that can carry out polytypic valve body processing is proposed, according to the valve body of different models, through installing the first counter plate of being connected with the ejector pin in the base both sides, six degrees of freedom that the valve body was restricted to the counter plate of second and fix positioning disk and the locating pin on the gyration board, accomplish the valve body drilling, mill R4.5 semicircle and bore and mill side screw hole processing, the flexibility is strong, the commonality is good, can satisfy the processing of multiple model valve body.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model provides a rotary fixture based on valve body mills processing revolving stage, is including setting up at four epaxial revolving plate, valve body and positioning and clamping device, both sides are equipped with four positioning and clamping device respectively above the revolving plate, positioning and clamping device comprises base, pull rod, crank, rectangle spring, ejector pin, first counter plate, second counter plate, swing pressure head, round pin axle, rotatory jar, hydro-cylinder cushion, support cylinder, float head, positioning disk, locating pin, prevent changeing piece, flat clamp plate, round pin axle, hydro-cylinder installation piece, push away jar and oil circuit piece, the valve body is pressed from both sides tightly to be fixed in positioning and clamping device.

Furthermore, each positioning and clamping device is provided with one base, the C-shaped opening of the base faces upwards, circular through holes are arranged on two sides of the opening, ejector rods are arranged in the circular through holes, the inner sides of the ejector rods are respectively connected with the first centering pressing plate and the second centering pressing plate through bolts, a hollow cavity is arranged in the base, cranks are arranged on two sides in the hollow cavity, a groove is arranged at the rear end of the ejector rod, the upper end part of the crank is connected with a groove at the rear end of the ejector rod, the lower end of the hollow cavity is provided with a pull rod, grooves are arranged on two sides of the pull rod, the lower end part of the crank is connected with the grooves on two sides of the pull rod, a rectangular spring is arranged in a circular groove in the middle of the pull rod, the lower end of the pull rod is provided with a push cylinder, one side of the push cylinder is provided with an oil cylinder cushion block, and the bottoms of the push cylinder and the oil cylinder cushion block are provided with oil path blocks.

Furthermore, a positioning disc is arranged on the inner side of the base, a round hole is formed in the middle of the positioning disc, the bottom end of the positioning pin is embedded in the round hole in the middle of the positioning disc, three supporting cylinders are arranged along the circumferential direction of the positioning disc, floating support heads are arranged on the supporting cylinders, and an anti-rotation block is arranged on one side of one of the floating support heads close to the base; eight oil cylinder cushion blocks are arranged at the middle position of the inner bottom side of the rotary plate, a rotary cylinder is arranged on the upper end face of each oil cylinder cushion block, and a flat pressing plate is arranged on the upper end face of each rotary cylinder.

Furthermore, the base is C style of calligraphy that the opening is ascending, and the opening both sides are equipped with circular through-hole, and cavity chamber is equipped with in inside, and adjacent base between be equipped with 5 mm's clearance, the crank sets up the cavity chamber in the base inside, and the crank lower extreme sets up in the recess of pull rod both sides, and the crank upper end sets up in the recess of ejector pin.

Furthermore, the first middle press plate is connected with the left ejector rod through a bolt, and the second middle press plate is connected with the right ejector rod through a bolt, so that angular positioning is realized.

Furthermore, the flat pressing plate is installed on the upper end face of the rotary cylinder through a bolt, the swing pressing head is connected with the flat pressing plate through a hinge pin and the bolt, the front end of the swing pressing head fixes the valve body in the vertical direction, the positioning pin is installed in a circular hole in the middle of the positioning plate and fixed with the positioning plate through the bolt, and the center of the valve body is positioned.

The utility model discloses a technological effect and advantage:

1. the utility model has the advantages that: the utility model provides a rotary clamp based on a valve body milling turntable, which belongs to the field of general machinery and structurally comprises a rotary plate and a positioning and clamping device, wherein the positioning and clamping device consists of a base, a mandril, a crank, a pin, a pull rod, an oil cylinder clamping block, a cover plate, a first middle pressing plate, a second middle pressing plate, a support, a floating support head, a flat pressing plate, a swinging pressing head, an oil cylinder cushion block, a positioning pin, an anti-rotation block, an oil path block, a floating support cylinder, a rotating cylinder, a pushing cylinder and a rectangular spring, the structure is novel, through positioning and clamping device with the valve body location at the assigned position, accomplish the processing that the valve body drilled, milled R4.5 semicircle and valve body one side brill and mill two screw holes, the utility model discloses can be used to the valve body processing occasion of many quantities and multiple operation, the device is simple, and the commonality is strong, has increased substantially machining efficiency, economic benefits.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

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

FIG. 2 is a schematic view of a partial structure of the present invention;

FIG. 3 is a schematic view of the drilling structure of the valve body of the present invention;

FIG. 4 is a schematic view of the valve body milling R4.5 semicircle structure of the present invention;

FIG. 5 is a schematic view of the side threaded hole machining structure of the drill of the present invention;

fig. 6 is the utility model discloses mill side screw hole processing structure schematic diagram.

Reference numbers in the figures: 1. a rotating plate; 2. a base; 3. a top rod; 4. a first counter press plate; 5. a second pair of middle press plates; 6. a valve body; 7. a rotation prevention block; 8. a support cylinder; 9. positioning a plate; 10. a cylinder cushion block; 11. a rotating cylinder; 12. flattening the plate; 13. a pin shaft; 14. swinging the pressure head; 15. an oil cylinder mounting block; 16. pushing the cylinder; 17. an oil circuit block; 18. a pull rod; 19. a spring; 20. a crank; 21. positioning pins; 22. and (4) floating the supporting head.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

As shown in fig. 1-6, a rotary fixture based on a valve body drilling, milling of a R4.5 semicircle and drilling and milling of a side threaded hole turntable comprises a rotary plate 1 arranged on four shafts, a valve body 6 and positioning and clamping devices, wherein four positioning and clamping devices are respectively arranged on two sides of the upper surface of the rotary plate 1, and each positioning and clamping device consists of a base 2, a pull rod 18, a crank 20, a rectangular spring 19, a push rod 3, a first pair of middle press plates 4, a second pair of middle press plates 5, a swinging press head 14, a pin shaft 13, a rotary cylinder 11, an oil cylinder cushion block 10, a support cylinder 8, a floating support head 22, a positioning disc 9, a positioning pin 21, an anti-rotation block 7, a flat press plate 12, a pin shaft 13, an oil cylinder mounting block 15, a push cylinder 16 and an oil path block 17; each positioning and clamping device is provided with a base 2, the base 2 is provided with a C-shaped opening upwards, circular through holes are formed in two sides of the opening, a push rod 3 is arranged in each circular through hole, the inner side of each push rod 3 is respectively connected with a first centering pressing plate 4 and a second centering pressing plate 5 through bolts, a hollow cavity is arranged in each base 2, cranks 20 are arranged on two sides in each hollow cavity, a groove is formed in the rear end of each push rod 3, the upper end portion of each crank 20 is connected with the groove in the rear end of each push rod 3, a pull rod 18 is arranged at the lower end of each hollow cavity, grooves are formed in two sides of each pull rod 18, the lower end portions of the cranks 20 are connected with the grooves in two sides of each pull rod 18, a rectangular spring 19 is arranged in a circular groove in the middle of each pull rod 18, a push cylinder 16 is arranged at the lower end of each pull rod 18, a cylinder cushion block 10 is arranged on one side of each push cylinder 16, and an oil path block 17 is arranged at the bottoms of the push cylinder cushion blocks 10; the inner side of the base 2 is provided with a positioning disk 9, the middle of the positioning disk 9 is provided with a round hole, the bottom end of a positioning pin 21 is embedded in the round hole in the middle of the positioning disk 9, three supporting cylinders 8 are arranged along the circumferential direction of the positioning disk 9, floating heads 22 are arranged on the supporting cylinders 8, and an anti-rotation block 7 is arranged on one side, close to one floating head 22 of the base 2; eight oil cylinder cushion blocks 10 are arranged at the middle positions of the bottom sides of the rotary plates 1, rotary cylinders 11 are arranged on the upper end faces of the oil cylinder cushion blocks 10, flat pressing plates 12 are arranged on the upper end faces of the rotary cylinders 11, and the valve body 6 is clamped and fixed in the positioning and clamping device.

As shown in fig. 1-2, the positioning and clamping device is arranged on the rotary plate 1, the inner chamber of the base 2 is provided with a pull rod 18, a rectangular spring 19 is arranged in a central circular hole of the pull rod 18, the bottom of the pull rod 18 is provided with a push cylinder 16, one side of the push cylinder 16 is provided with an oil path block 17, a crank 20 is arranged in a groove at two sides of the pull rod 18, the upper end of the crank 20 is connected with a push rod 3, the inner side of the push rod 3 is respectively connected with the first middle press plate 4 and the second middle press plate 5 through bolts, the reciprocating motion of the pull rod 18 is realized under the action of the push cylinder 16 and the rectangular spring 19 during processing, the positioning device is used for positioning the valve body 6 at an angle, a circular positioning disc 9 is arranged on the inner side of the base 2, a positioning pin 21 is arranged in the middle of the positioning disc 9, three supporting cylinders 8 are arranged along the circumference direction of the positioning disc circle 9, floating support heads 22 are arranged on the supporting cylinders 8, and anti-rotation blocks 7 are arranged on one sides of the left floating support heads 22 and used for positioning and supporting the valve body 6 in the horizontal direction and the vertical direction; two rows of oil cylinder cushion blocks 10 are arranged on the inner bottom side of the rotary plate 1, a rotary cylinder 11 is arranged on the upper end face of each oil cylinder cushion block 10, a flat pressing plate 12 is arranged on the upper end face of each rotary cylinder 11, the oil cylinder cushion blocks 10, the rotary cylinders 11 and the flat pressing plates 12 are connected with the rotary plate 1 through pins and bolts, and the swing pressure head 14 is connected with the flat pressing plates 12 through pin shafts 13 and bolts and can rotate 90 degrees for fixing the valve body 6 in the vertical direction.

For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.

The utility model discloses the theory of operation as follows:

the valve body 6 is placed on the positioning disc 9, an inner hole is aligned with the positioning pin 21, under the control of a hydraulic system, the pushing cylinder 16 is not subjected to oil pressure at the moment, the elastic force of the rectangular spring 19 is released, the pull rod 18 moves downwards, the bottom ends of the cranks 20 in the grooves on the two sides of the pull rod 18 are also driven by the pull rod 18 to move downwards, because the cranks 20 are 90-degree in shape, along with the downward movement of the lower end part of the cranks 20, the upper end part of the cranks 20 drives the ejector rods 3 to approach towards the middle, because the first middle pressing plate 4 and the second middle pressing plate 5 are connected with the ejector rods 3 through bolts, the first middle pressing plate 4 and the second middle pressing plate 5 also move towards the middle, so that two cylinders on one side of the valve body 6 are clamped, then under the control of the hydraulic system, the swinging pressing head 14 is driven by the rotating cylinder 11 to rotate 90 degrees along the clockwise direction and the anticlockwise direction to the upper part of the valve body 6 respectively, the valve body 6 is pressed downwards, finally, the supporting cylinder 8 is controlled by a hydraulic system to form supporting force under the action of oil pressure, and the floating support head 22 abuts against three corners of the valve body 6 to prevent the three corners of the valve body 6 from moving downwards in the drilling process.

The utility model provides a drilling and mill R4.5 semicircle theory of operation as follows with brill rotary fixture who mills side screw hole revolving stage based on valve body drilling, mills R4.5 semicircle theory of operation: and starting machining after all the positioning and clamping actions are finished, firstly calling a first drill by the machine tool to finish machining three holes, and then changing a milling cutter to mill an R4.5 semicircle.

The utility model provides a based on valve body drilling, mill R4.5 semicircle and bore and mill side screw hole revolving stage rotary fixture, processing valve body side screw hole theory of operation as follows: after finishing milling R4.5 semicircle and hole processing, the four-axis rotates 90 along clockwise, two cylinder holes of 6 sides of valve body are vertical upwards this moment, change the cutter to the second drill bit, bore two cylinder internal thread bottom holes, after having processed the work piece of four stations, rotate 180 with the four-axis again, process the work piece of four other stations, then change the cutter to thread milling cutter again, mill two cylinder internal thread holes, after having processed the work piece of four stations, rotate 180 with the four-axis again, process the work piece of four other stations.

After all the working procedures are finished, under the control of a hydraulic system, the push cylinder 16 is subjected to oil pressure at the moment, the pull rod 18 is pushed upwards, the rectangular spring 19 is compressed, the bottom ends of the cranks 20 in the grooves on the two sides of the pull rod 18 also move upwards under the motion of the pull rod 18, because the cranks 20 are in a 90-degree shape, the upper ends of the cranks move outwards along with the pull rod 18, the cranks 20 drive the ejector rods 3, the first pair of middle press plates 4 and the second pair of middle press plates 5 also move outwards at the moment, then the swinging press heads 14 are driven by the rotating cylinders 11 to respectively rotate 90 degrees clockwise and counterclockwise to loosen the valve body 6 to return to the initial position parallel to the direction of the base 2, the supporting cylinders 8 move downwards under the action of the internal springs 19 because of losing the oil pressure, all the loosening actions are all finished at the moment, the positioning and clamping devices are restored to the respective initial positions again to take down the processed valve body 6, the operation is repeated, so that the purpose of batch processing is achieved.

The above is the preferred embodiment of the present invention, and the technical personnel in the field of the present invention can also change and modify the above embodiment, therefore, the present invention is not limited to the above specific embodiment, and any obvious improvement, replacement or modification made by the technical personnel in the field on the basis of the present invention all belong to the protection scope of the present invention.

Claims

1. The utility model provides a gyration anchor clamps based on valve body mills processing revolving stage, includes that setting up at four epaxial revolving plate (1), valve body (6) and positioning and clamping device, its characterized in that: the improved rotary valve is characterized in that four positioning and clamping devices are respectively arranged on two sides of the upper surface of the rotary plate (1), each positioning and clamping device is composed of a base (2), a pull rod (18), a crank (20), a rectangular spring (19), an ejector rod (3), a first centering pressing plate (4), a second centering pressing plate (5), a swinging pressing head (14), a pin shaft (13), a rotary cylinder (11), an oil cylinder cushion block (10), a supporting cylinder (8), a floating supporting head (22), a positioning disc (9), a positioning pin (21), an anti-rotation block (7), a flat pressing plate (12), a pin shaft (13), an oil cylinder mounting block (15), a pushing cylinder (16) and an oil circuit block (17), and the valve body (6) is clamped and fixed in the positioning and clamping devices.

2. The rotary clamp based on the valve body milling turntable according to claim 1, wherein: each positioning and clamping device is provided with one base (2), the base (2) is provided with a C-shaped opening upwards, circular through holes are formed in two sides of the opening, ejector rods (3) are arranged in the circular through holes, the inner sides of the ejector rods (3) are respectively connected with a first pair of middle press plates (4) and a second pair of middle press plates (5) through bolts, a hollow cavity is arranged in the base (2), cranks (20) are arranged on two sides in the hollow cavity, a groove is formed in the rear end of each ejector rod (3), the upper end of each crank (20) is connected with the groove in the rear end of each ejector rod (3), a pull rod (18) is arranged at the lower end of the hollow cavity, grooves are formed in two sides of the pull rod (18), the lower end of each crank (20) is connected with the grooves in two sides of the pull rod (18), and a rectangular spring (19) is arranged in the circular groove in the middle of the pull rod (18), the lower end of the pull rod (18) is provided with a push cylinder (16), one side of the push cylinder (16) is provided with an oil cylinder cushion block (10), and the bottoms of the push cylinder (16) and the oil cylinder cushion block (10) are provided with an oil path block (17).

3. The rotary clamp based on the valve body milling turntable according to claim 1, wherein: a positioning disc (9) is arranged on the inner side of the base (2), a round hole is formed in the middle of the positioning disc (9), the bottom end of the positioning pin (21) is embedded in the round hole in the middle of the positioning disc (9), three supporting cylinders (8) are arranged along the circumferential direction of the positioning disc (9), floating support heads (22) are arranged on the supporting cylinders (8), and an anti-rotation block (7) is arranged on one side, close to one floating support head (22) of the base (2); the rotary plate is characterized in that eight oil cylinder cushion blocks (10) are arranged in the middle of the bottom side of the rotary plate (1), the upper end faces of the oil cylinder cushion blocks (10) are provided with rotary cylinders (11), and the upper end faces of the rotary cylinders (11) are provided with flat pressing plates (12).

4. The rotary clamp based on the valve body milling turntable according to claim 1, wherein: base (2) are the ascending C style of calligraphy of opening, and the opening both sides are equipped with circular through-hole, and inside is equipped with well plenum chamber, and adjacent base (2) between be equipped with 5 mm's clearance, crank (20) set up in the inside of plenum chamber in base (2), and crank (20) lower extreme sets up in the recess of pull rod (18) both sides, and crank (20) upper end sets up in the recess of ejector pin (3).

5. The rotary clamp based on the valve body milling turntable according to claim 1, wherein: the first centering pressing plate (4) is connected with the left ejector rod (3) through a bolt, and the second centering pressing plate (5) is connected with the right ejector rod (3) through a bolt, so that angular positioning is realized.

6. The rotary clamp based on the valve body milling turntable according to claim 1, wherein: the valve body positioning device is characterized in that the flat pressing plate (12) is installed on the upper end face of the rotating cylinder (11) through a bolt, the swinging pressing head (14) is connected with the flat pressing plate (12) through a pin shaft (13), the front end of the swinging pressing head (14) fixes the valve body (6) in the vertical direction, the positioning pin (21) is installed in a round hole in the middle of the positioning disc (9) and fixed with the positioning disc (9) through the bolt, and the center of the valve body (6) is positioned.