Sealing element production tool clamp

Abstract

The invention relates to a sealing element production tool clamp, and relates to the technical field of clamping tools, the sealing element production tool clamp comprises a main disc, a cylinder part is arranged on the main disc, the main disc is installed on a turning machine tool, the turning machine tool drives the main disc to rotate, an eccentric disc is rotationally connected in the main disc, the eccentric disc is provided with a fixing column, and the fixing column is provided with a fixing retraction mechanism. Comprising a telescopic arm arranged on the fixing column, the telescopic arm is provided with a chuck used for fixing the barrel piece, the chuck is axially arranged in the barrel piece in a sleeved mode and abuts against the inner wall of the barrel piece, and the telescopic arm drives the chuck to slide towards the eccentric disc till the outer wall of the chuck is flush with the outer wall of the main disc. And the delay limiting mechanism is used for controlling the retraction distance and time of the telescopic arm. According to the cutting device, the remaining part of the cylinder part after cutting can be effectively reduced, meanwhile, the cutting part of the cylinder part can be effectively supported, and after cutting is completed, the remaining part of the cylinder part automatically falls off.

Description

Technical Field

[0001] The present application relates to the technical field of clamping tooling, and in particular to a tooling fixture for producing sealing components. Background Art

[0002] In the related art, when polyurethane tubes are cut, they are usually fixed to the tubes by a three-jaw chuck. However, the tubes fixed by the three-jaw chuck have a lot of remaining parts after cutting, resulting in waste of the tubes. Moreover, the remaining parts need to be manually removed after cutting, affecting the processing progress. Summary of the invention

[0003] In order to improve the processing progress, the present application provides a seal production tooling fixture.

[0004] A seal production fixture comprises a main plate, a cylinder is arranged on the main plate, the main plate is mounted on a turning machine, the turning machine drives the main plate to rotate, an eccentric plate is connected to the main plate, the eccentric plate is provided with a fixing column, and the fixing column is provided with The fixed retracting mechanism comprises a telescopic arm arranged on the fixed column, the telescopic arm is provided with a chuck for fixing the cylinder, the chuck is axially sleeved in the cylinder and abuts against the inner wall of the cylinder, and the telescopic arm drives the chuck to slide close to the eccentric disk until the outer wall of the chuck is flush with the outer wall of the main disk; The time-delay limit mechanism is used to control the retraction distance and time of the telescopic arm.

[0005] By adopting the above technical solution, in the related technology, the turning machine tool can drive the main disk to rotate, and push the cylinder on the main disk onto the blade of the turning machine tool for cutting. During cutting, the telescopic arm drives the chuck to slide toward the eccentric disk, and under the action of the delay limit mechanism, the chuck moves downward synchronously after each cutting of the cylinder, which can effectively reduce the remaining part of the cylinder after cutting, and at the same time, the cut part of the cylinder can be effectively supported.

[0006] When the cutting is completed, the chuck slides into the main disk and the outer wall of the chuck is flush with the outer wall of the main disk, and the remaining part of the cylinder will automatically fall off due to lack of support.

[0007] Optionally, the fixed retraction mechanism further comprises a plurality of return springs rotatably arranged in the fixed column, and the plurality of return springs are all provided with a retraction rod, and the retraction rod is fixedly connected to the telescopic arm.

[0008] By adopting the above technical solution, the telescopic rod is driven to retract by the reset spring.

[0009] Optionally, the telescopic arm includes a plurality of connecting plates, which are cross-arranged and connected to form a scissor-type connecting rod. A rotating shaft is provided at the connection points of the plurality of connecting plates. The rotating shaft of the telescopic arm close to the fixed column is connected to the retraction rod, and the two connecting plates of the telescopic arm close to the fixed column abut against both sides of the fixed column.

[0010] By adopting the above technical solution, the extension and retraction of the telescopic arm can be controlled by the opening and closing angle between the two connecting plates of the telescopic arm close to the fixed column.

[0011] Optionally, rollers are provided at the ends of the two connecting plates of the telescopic arm close to the fixed column, and the rollers roll on a side of the fixed column close to the telescopic arm.

[0012] By adopting the above technical solution, the mass of the two connecting plates of the telescopic arm close to the fixed column can be effectively increased through the roller, so that the main plate can effectively increase the centripetal force exerted on the two connecting plates of the telescopic arm close to the fixed column after rotation.

[0013] Optionally, a plurality of retractable support rods are provided on one side of the chuck close to the fixed column, the plurality of support rods are staggered in the width direction of the telescopic arm, and the bottoms of the plurality of support rods extend into the inner wall of the main disk.

[0014] By adopting the above technical solution, the support rod is used to improve the support strength of the chuck. The support rod and the telescopic arm are staggered, which can effectively avoid the support rod and the telescopic arm from colliding.

[0015] Optionally, the delay limit mechanism includes a delay disk axially sleeved on a fixed column, the side of the delay disk away from the eccentric disk is a sliding surface, the end of the telescopic arm close to the fixed column slides on the sliding surface, a plurality of speed limiting grooves are opened on the sliding surface, and the telescopic arm extends into the speed limiting grooves.

[0016] By adopting the above technical solution, the sliding distance of the roller is limited by rolling the roller on the speed limiting groove. At the same time, when the centripetal force applied to the roller is greater than the pulling force of the spring, the roller leaves the speed limiting groove.

[0017] Optionally, the delay disk is composed of a plurality of delay cylinders which are arranged in sequence, and the two connected delay cylinders are rotatably connected to each other. The inner wall of the main disk is provided with internal teeth, and a gear ring is provided on the side of the plurality of delay cylinders away from the cylinder member, and the plurality of gear rings are engaged with the internal teeth through a matching gear set.

[0018] By adopting the above technical solution, after the main disk rotates, the corresponding delay cylinder can be driven to rotate through the corresponding gear, so that each delay cylinder can rotate independently.

[0019] Optionally, a delay ring is provided on each of the delay cylinders, and one end of the telescopic arm close to the fixed column abuts against the inner delay ring, and a notch is provided on each of the delay rings for the telescopic arm to pass through.

[0020] By adopting the above technical solution, the delay ring is driven to rotate by the delay tube. When the gap moves to the telescopic arm and is aligned with the telescopic arm, the telescopic arm passes through the delay ring at that position and abuts against the next delay ring.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: 1. It can effectively reduce the remaining part of the tube after cutting, and the tube can be effectively supported in the cutting part; 2. When the cutting is completed, the remaining part of the tube will fall off automatically. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of this application; Figure 2 It is a partial cross-sectional structural schematic diagram of the present application, mainly showing the interior of the eccentric disk and the main disk; Figure 3 is along Figure 2 Schematic diagram of the cross-sectional structure along the AA line; Figure 4 yes Figure 3 A partial enlarged schematic diagram of part B.

[0023] Description of the drawings: 1. Main plate; 101. Mounting groove; 102. Clearance hole; 103. Internal teeth; 2. Cylinder; 3. Eccentric plate; 301. Eccentric block; 4. Fixed retraction mechanism; 401. Retraction rod; 402. Return spring; 403. Telescopic arm; 404. Chuck; 405. Support rod; 5. Delay limit mechanism; 501. Delay cylinder; 502. Limit ring; 503. Limit groove; 504. Delay ring; 505. Speed ​​limit groove; 6. Chassis; 7. Fixed column; 8. Rotation groove; 9. Rotation cylinder; 10. Retraction groove; 11. Connecting plate; 12. Rotation shaft; 13. Notch; 14. Roller; 15. Gear. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1 -Attached Figure 4 , further details of this application are given.

[0025] A seal production fixture, refer to Figure 1 , Figure 2 , comprising a main disc 1, an installation groove 101 is axially opened on the main disc 1, a cylinder 2 to be processed is installed in the installation groove 101, and an eccentric disc 3 is axially rotatably connected in the main disc 1. A fixed retraction mechanism 4 and a delay limit mechanism 5 are arranged on the eccentric disc 3. The fixed retraction mechanism 4 is used to fix the cylinder 2 when clamping and cutting the cylinder 2, and change the fixed position of the cylinder 2 during the cutting process. The delay limit mechanism 5 is used to control the movement time of the fixed retraction mechanism 4.

[0026] refer to Figure 2 , Figure 3The main disc 1 is axially fixedly connected to a chassis 6 on one side away from the cylinder 2, wherein the chassis 6 is fixed to the machine tool, and the inner wall of the chassis 6 is rotatably connected to a plurality of balls half-embedded in the chassis, and the plurality of balls are in contact with the eccentric disc 3.

[0027] refer to Figure 3 , Figure 4 The inner wall of the eccentric disc 3 is axially fixedly connected with a fixing column 7, and the fixing column 7 is provided with a rotation groove 8 toward the side wall of the cylinder 2, and a rotating cylinder 9 is inserted into the rotation groove 8. Among them, a plurality of balls are arranged between the inner wall of the rotation groove 8 and the outer wall of the rotating cylinder 9, and the plurality of balls are half-embedded in the side walls of the rotation groove 8 and the rotating cylinder 9, respectively, so that the rotating cylinder 9 can rotate axially in the rotation groove 8. In addition, the plurality of balls can prevent the rotating cylinder 9 from rolling along its own length direction.

[0028] refer to Figure 2 , Figure 4 Two centrally symmetrical retraction grooves 10 are provided in the rotating cylinder 9, and the fixed retraction mechanism 4 includes a retraction rod 401 slidably arranged in the corresponding retraction groove 10. A return spring 402 fixedly connected to the bottom of the groove is provided in each of the two retraction grooves 10, and the two return springs 402 are fixedly connected to the corresponding retraction rod 401 respectively.

[0029] refer to Figure 2 A telescopic arm 403 is provided between the two retracting rods 401. The telescopic arm 403 is a scissor-type connecting rod composed of a plurality of folding groups arranged along the same straight line. Each folding group is composed of two cross-arranged connecting plates 11. The connection points of the plurality of connecting plates 11 are all rotatably connected with a rotating shaft 12. After the arrangement, the four opposite connecting plates 11 on the two folding groups form a parallelogram, so that when one folding group moves in telescopic motion, the other folding groups move synchronously.

[0030] refer to Figure 3 The two ends of the rotating shaft 12 on the folding group of the telescopic arm 403 near the fixed column 7 are respectively fixedly connected to the two retraction rods 401. The retraction rod 401 continuously pulls the telescopic arm 403 toward the fixed column 7 under the action of the return spring 402, causing the ends of the two connecting plates 11 on the folding group near the fixed column 7 to move away from each other, thereby shortening the length of the telescopic arm 403.

[0031] refer to Figure 2 , Figure 3 A clearance hole 102 is axially opened on one side of the main disc 1 close to the cylinder 2, and the inner wall of the clearance hole 102 is flush with the inner wall of the cylinder 2. A chuck 404 is fixedly connected to one end of the telescopic arm 403 away from the fixed column 7, and the chuck 404 is axially slidably connected in the cylinder 2 and the outer wall of the chuck 404 abuts against the inner wall of the cylinder 2. A groove is opened on the side of the chuck 404 away from the telescopic arm 403.

[0032] Two telescopic support rods 405 are fixedly connected to one side of the chuck 404 close to the fixed column 7. The two support rods 405 are respectively located on both sides of the telescopic arm 403. The bottoms of the two support rods 405 are bent and fixedly connected to the inner wall of the main plate 1.

[0033] refer to Figure 2 , Figure 4 The delay limiting mechanism 5 includes a plurality of delay cylinders 501 axially sleeved on the fixed column 7, a plurality of limiting rings 502 are arranged along the outer wall of the delay cylinder 501, and a plurality of limiting grooves 503 cooperating with adjacent delay cylinders 501 are opened on the inner wall of the delay cylinder 501, wherein a plurality of balls abutting against the two sides of the limiting ring 502 are rollingly connected on the two opposite groove walls of the limiting groove 503.

[0034] After the delay cylinders 501 are sleeved, the side away from the eccentric disk 3 forms a sliding surface. The side of the delay cylinder 501 away from the eccentric disk 3 is fixedly connected with a delay ring 504, and a gap is provided between adjacent delay rings 504. Several delay rings 504 are radially provided with notches 13.

[0035] refer to Figure 2 The bottom ends of the two connecting plates 11 on the telescopic arm 403 near the fixed column 7 are fixedly connected with rollers 14 that can pass through the notch 13, and the diameter of the rollers 14 is smaller than the linear distance between the adjacent delay rings 504. The rollers 14 roll on the sliding surface and collide with the delay rings 504. In addition, a speed limiting groove 505 is provided on the sliding surface between the innermost delay ring 504 and the fixed column 7, and the rollers 14 are inserted into the speed limiting groove 505.

[0036] A teardrop-shaped eccentric block 301 with a mass greater than that of the eccentric disk 3 is fixedly embedded on the eccentric disk 3. The fixing column 7 is fixedly connected to the eccentric block 301, and the center line of the eccentric block 301 passes through the center of the fixing column 7, so that the center of gravity of the eccentric disk 3 is offset to the side where the eccentric block 301 accounts for a larger proportion.

[0037] Several time delay cylinders 501 are fixedly connected to a toothed ring on one side close to the eccentric disk 3, and each toothed ring has a different diameter, and the diameters of several toothed rings gradually decrease in the direction close to the chassis 6. The inner wall of the main disk 1 is provided with internal teeth 103, and the eccentric disk 3 and the eccentric block 301 are provided with several gears 15 with the same number as the toothed rings, and the diameters and heights of several gears 15 are different, and each gear 15 meshes with the internal teeth 103 and the corresponding toothed ring respectively. After the main disk 1 rotates, the time delay cylinder 501 at the corresponding position can be driven to rotate through the cooperation of the gears 15 and the toothed ring. In addition, several gears 15 are located on the side of the eccentric disk 3 where the eccentric block 301 accounts for a larger proportion.

[0038] The implementation principle of the embodiment of the present application is as follows: before use, the chuck 404 is pulled upward by pulling the groove so that the chuck 404 is flush with the cylinder 2. At this time, the telescopic arm 403 is extended to deform the return spring 402 until the roller 14 extends into the speed limiting groove 505 and contacts the inner wall of the speed limiting groove 505. Secondly, the cylinder 2 is sleeved outside the chuck 404 and installed on the main plate 1, and then the chassis 6 is installed on the machine tool.

[0039] It should be noted that a synchronously rotating extrusion piece is provided on one side of the machine tool, and the extrusion piece slides toward the cylinder 2 and squeezes the end of the cylinder 2 away from the main disk 1, so that the cylinder 2 is fastened between the main disk 1 and the extrusion piece.

[0040] The machine tool drives the main plate 1 to rotate, and the cylinder 2 installed on the main plate 1 rotates synchronously. In addition, the main plate 1 drives the support rod 405 to rotate, and the support rod 405 drives the chuck 404 to rotate, and the chuck 404 can drive the cylinder 2 and the telescopic arm 403 to rotate synchronously.

[0041] When the telescopic arm 403 rotates, it is affected by the centrifugal force, and the roller 14 rolls out of the speed limiting groove 505 and hits the innermost delay ring 504.

[0042] At this time, the angle between the two connecting plates 11 at the bottom of the telescopic arm 403 becomes larger, and then according to the characteristics of the quadrilateral variability, the telescopic arm 403 is contracted, further causing the chuck 404 to slide inward. At this time, the turning blade extends to turn the barrel 2 along the outer surface of the chuck 404.

[0043] At the same time, the main plate 1 rotates to drive the delay cylinders 501 to rotate through the gear 15, and because the diameters of the gear 15 and the gear ring driving the delay cylinder 501 are different, the rotation speed of each delay cylinder 501 is also different. Under the action of centrifugal force and the return spring 402, the roller 14 continues to squeeze the innermost delay ring 504.

[0044] The innermost delay ring 504 rotates under the action of the delay cylinder 501, so that when the notch 13 on the delay ring 504 rotates to the position of the roller 14, the roller 14 quickly slides along the notch 13 to the delay ring 504 of the next layer under the action of the centrifugal force and the return spring 402 and collides with the delay ring 504 of this layer. The rotation speed of the delay ring 504 of this layer is different from that of the innermost delay ring 504, so that the notch 13 of this layer is misaligned with the notch 13 of the innermost layer, so that the roller 14 cannot directly pass through the delay ring 504 of this layer.

[0045] The roller 14 passes through the gaps 13 of the delay rings 504 of different layers for multiple times according to the above process, until the roller 14 contacts the delay ring 504 of the outermost layer.

[0046] At the same time, the telescopic arm 403 shrinks inwards for a distance, so that the support rod 405 and the chuck 404 shrink inwards for a distance synchronously, and then the cylinder 2 is turned. At the same time, each time the roller 14 reaches a layer of delay ring 504, the telescopic arm 403, the chuck 404, and the support rod 405 shrink for a distance accordingly, so that the cylinder 2 can continue to support the turned part of the cylinder 2 when turning.

[0047] It should be noted that when the main plate 1 drives the gears 15, since the gears 15 are densely distributed on the side of the eccentric plate 3 where the eccentric block 301 accounts for a large proportion, the main plate 1 applies thrusts in various directions to the gears 15, and most of the rotations are the rotational forces of the gears 15, so as to ensure that the eccentric plate 3 and the gears 15 can remain as still as possible when the main plate 1 rotates.

[0048] By analogy, when the roller 14 gradually rolls onto the outermost delay ring 504, the chuck 404, the telescopic arm 403, and the support rod 405 are retracted into the main plate 1, and the outer side of the chuck 404 is flush with the main plate 1. After retracting, the cylinder 2 falls off naturally due to lack of support.

[0049] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A seal production fixture, comprising a main plate (1), on which a cylinder (2) is arranged, the main plate (1) is mounted on a turning machine, and the turning machine drives the main plate (1) to rotate, characterized in that: An eccentric disk (3) is rotatably connected inside the main disk (1), and the eccentric disk (3) is provided with a fixing column (7), and the fixing column (7) is provided with A fixed retracting mechanism (4) comprises a telescopic arm (403) arranged on a fixed column (7), wherein the telescopic arm (403) is provided with a chuck (404) for fixing the cylinder (2), wherein the chuck (404) is axially sleeved in the cylinder (2) and abuts against the inner wall of the cylinder (2), and the telescopic arm (403) drives the chuck (404) to slide towards the eccentric disk (3) until the outer wall of the chuck (404) is flush with the outer wall of the main disk (1); The time-delay limit mechanism (5) is used to control the retraction distance and time of the telescopic arm (403).

2. A seal production fixture according to claim 1, characterized in that: The fixed retracting mechanism (4) further comprises a plurality of return springs (402) rotatably arranged in the fixed column (7), and each of the plurality of return springs (402) is provided with a retracting rod (401), and the retracting rod (401) is fixedly connected to the telescopic arm (403).

3. A seal production fixture according to claim 2, characterized in that: The telescopic arm (403) comprises a plurality of connecting plates (11), the plurality of connecting plates (11) are cross-arranged and connected to form a scissor-type connecting rod, a rotating shaft (12) is provided at the connection points of the plurality of connecting plates (11), the rotating shaft (12) of the telescopic arm (403) close to the fixed column (7) is connected to the retractable rod (401), and the two connecting plates (11) of the telescopic arm (403) close to the fixed column (7) are in contact with both sides of the fixed column (7).

4. A seal production fixture according to claim 3, characterized in that: Rollers (14) are provided at the ends of the two connecting plates (11) of the telescopic arm (403) close to the fixed column (7), and the rollers (14) roll on one side of the fixed column (7) close to the telescopic arm (403).

5. The seal production fixture according to claim 1, characterized in that: A plurality of retractable support rods (405) are arranged on one side of the chuck (404) close to the fixed column (7); the plurality of support rods (405) are arranged in a staggered manner in the width direction of the retractable arm (403); and the bottoms of the plurality of support rods (405) extend into the inner wall of the main plate (1).

6. The seal production fixture according to claim 1, characterized in that: The time-delay limit mechanism (5) comprises a time-delay disk axially sleeved on a fixed column (7); the side of the time-delay disk away from the eccentric disk (3) is a sliding surface; the end of the telescopic arm (403) close to the fixed column (7) slides on the sliding surface; a plurality of speed-limiting grooves (505) are formed on the sliding surface; and the telescopic arm (403) extends into the speed-limiting grooves (505).

7. A seal production fixture according to claim 6, characterized in that: The delay plate is composed of a plurality of delay cylinders (501) which are arranged in sequence, and the two connected delay cylinders (501) are rotatably connected to each other. The inner wall of the main plate (1) is provided with internal teeth (103), and a plurality of the delay cylinders (501) are provided with toothed rings on the side away from the cylinder (2), and the plurality of toothed rings are linked with the internal teeth (103) through a matching gear (15) group.

8. A seal production fixture according to claim 7, characterized in that: A delay ring (504) is provided on a plurality of the delay cylinders (501), one end of the telescopic arm (403) close to the fixed column (7) contacts the inner delay ring (504), and a notch (13) is provided on a plurality of the delay rings (504) for the telescopic arm (403) to pass through.

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