CN110756648A

CN110756648A - Locking mechanism of rotary edge trimmer

Info

Publication number: CN110756648A
Application number: CN201910971647.1A
Authority: CN
Inventors: 陈宇
Original assignee: Wuxi Hengyitong Machinery Co Ltd
Current assignee: Wuxi Hengyitong Machinery Co Ltd
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-02-07

Abstract

The invention discloses a locking mechanism of a rotary edge trimmer, which comprises a locking seat, wherein a plurality of locking blocks are uniformly distributed on the inner side of the locking seat in the circumferential direction, the locking blocks which are connected in the circumferential direction are connected through a first elastic piece and are positioned on the outer side of a workpiece, a guide plate penetrates through the locking seat in the axial direction, the lower end of the guide plate is matched and extends into a guide groove in the locking blocks, locking screws are movably connected to the locking seat, the lower ends of the locking screws are fixedly connected with the locking blocks, the locking blocks and the locking seat move relatively through the locking screws, and the locking seat moves up and down relative to the locking blocks to enable the locking blocks to move back and forth in the radial direction to lock or loosen the workpiece. Through the mode, the locking mechanism of the rotary edge trimmer can achieve the purpose of locking the workpiece, ensures that the workpiece does not shake during side cutting, and is accurate in positioning and simple in structure.

Description

Locking mechanism of rotary edge trimmer

Technical Field

The invention relates to the field of hub machining, in particular to a locking mechanism of a hub rotary edge trimmer.

Background

The hub, also called a rim, is a connecting part for fixing the blades to the rotating shaft and is also a main bearing member constituting the airplane wheel.

After the wheel hub is hot forged, the workpiece needs to be fixed on a machine tool for trimming and punching, and the general operation method is to perform trimming on the workpiece and then perform punching on the workpiece. Therefore, two sets of dies are needed for processing, the process is complex, and the cost is high. The existing domestic hub edge trimmer usually depends on import, the imported hub edge trimmer is extremely high in cost, complex in structure, high in operation difficulty and high in later maintenance cost, and the use requirements of enterprises cannot be met.

Disclosure of Invention

The invention mainly solves the technical problem of providing a locking mechanism of a rotary edge trimmer, which can achieve the aim of locking a workpiece, ensure that the workpiece does not shake during side cutting, and has accurate positioning and simple structure.

In order to solve the technical problems, the invention adopts a technical scheme that: the utility model provides a locking mechanism of rotatory bead cutter, includes the latch segment, the inboard circumference equipartition of latch segment has a plurality of latch segments, links to each other be connected through first elastic component between the circumference of latch segment to the latch segment is located the outside of work piece, wear to be equipped with the deflector in the axial of latch segment, the cooperation of deflector lower extreme stretches into the guide way on the latch segment in, swing joint has locking screw on the latch segment still, locking screw's lower extreme and latch segment fastening connection, through locking screw relative motion between latch segment and the latch segment, the relative latch segment of latch segment reciprocates and makes the latch segment perhaps loosen the work piece with locking along radial reciprocating motion.

In a preferred embodiment of the invention, the locking block has a locking surface engaged with the workpiece on the inner side and an inclined contact surface on the outer side, the locking seat has a pressing surface engaged with the contact surface, the locking seat moves downward to make the pressing surface contact with the contact surface to push the locking block to move radially inward, the locking seat moves upward to separate the pressing surface from the contact surface, and the locking block is pushed by the first elastic member to move radially outward.

In a preferred embodiment of the present invention, the locking seat is provided with a second elastic member, and a lower end of the second elastic member is connected to the locking block.

In a preferred embodiment of the present invention, the locking seat is connected to each locking block through two guide plates and two locking screws.

In a preferred embodiment of the present invention, adjacent locking blocks are connected by two first elastic members arranged in parallel.

In a preferred embodiment of the present invention, a connecting plate is further disposed inside the locking seat, a plurality of third elastic members are mounted on the connecting plate, an upper mold plate is disposed above the locking seat and the connecting plate, and upper ends of the third elastic members are connected to the upper mold plate.

In a preferred embodiment of the present invention, the first elastic member, the second elastic member and the third elastic member are all springs.

The invention has the beneficial effects that: the locking mechanism of the rotary edge trimmer can achieve the purpose of locking the workpiece, ensures that the workpiece does not shake during side cutting, and has accurate positioning and simple structure.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a perspective view of a preferred embodiment of the rotary edge trimmer of the present invention;

FIG. 2 is a front view of FIG. 1

FIG. 3 is a top view of FIG. 1;

FIG. 4 is a schematic view of a portion of the structure of FIG. 1;

FIG. 5 is a top view of FIG. 4;

FIG. 6 is a schematic view of a portion of the structure of FIG. 1;

FIG. 7 is a schematic view of a portion of the structure of FIG. 6;

FIG. 8 is a schematic view of a portion of the structure of FIG. 1;

FIG. 9 is a front view of FIG. 8;

FIG. 10 is a schematic view of a portion of the structure of FIG. 9;

the parts in the drawings are numbered as follows: 1. the lower die assembly comprises a lower die assembly, 11, a lower die holder, 1101, a sliding groove, 1102, a limiting block, 12, a female die mechanism, 1201, a mounting groove, 1202, a fourth elastic element, 1203, a clamping tongue, 13, a trimming mechanism, 1301, a sliding block, 1302, a punch, 1303, an elastic reset element, 1304, a pushing inclined plane, 14, a workpiece, 15, a rotary positioning mechanism, 1501, a driving head, 1502, a transmission mechanism, 1503, a transmission gear, 1504, a limiting groove, 1505, a guide seat, 1506, a guide strip, 1507, a guide rail, 1508, a tooth surface, 1509, a limiting column, 2, an upper die assembly, 21, an upper die plate, 2101, an upper slotting tool, 22, a locking mechanism, 2201, a locking seat, 2202, a locking block, 2203, a first elastic element, 2204, a guide plate, 2205, a guide groove, 2206, a locking screw, 2207, a locking surface, 2208, a contact surface, 2209, a pressing surface, 2210, a second elastic element, 2211, a connecting plate, 2212 and a third.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, a rotary edge trimmer includes a lower die assembly 1 and an upper die assembly 2, the upper die assembly 2 is movably connected to the lower die assembly 1, the lower die assembly 1 includes a lower die base 11, a die mechanism 12 and a plurality of edge trimming mechanisms 13 are mounted on the lower die base 11, a workpiece 14 is sleeved on the die mechanism 12, and the edge trimming mechanisms 13 are uniformly arranged around the outer side of the workpiece 14.

Referring to fig. 4 and 5, the trimming mechanism 13 includes a slider 1301, a punch 1302 for punching the workpiece 14 is connected to the front end of the slider 1301, the slider 1301 is slidably disposed in a slide slot 1101 of the lower die holder 11, an upper slotting tool 2101 is disposed on the upper die plate 21, and the upper slotting tool 2101 contacts the slider 1301 to push the slider 1301 to move forward. An elastic reset part 1303 is further installed between the lower die holder 11 and the sliding block 1301, and the upper slotting tool 2101 is separated from the sliding block 1301, so that the elastic reset part 1303 drives the sliding block 1301 to reset. A matching push ramp 1304 is provided between the upper end surface of the slider 1301 and the lower end surface of the lower slotting tool 2101. The rear end of the sliding groove 1101 is also provided with a limiting block 1102 for limiting the position of the sliding block 1301.

In addition, referring to fig. 8 to 10, the upper die assembly 2 includes an upper die plate 21 and a locking mechanism 22 installed on the upper die plate 21, the locking mechanism 22 includes a locking seat 2201, a plurality of locking blocks 2202 are uniformly distributed on the inner side of the locking seat 2201 in the circumferential direction, the locking blocks 2202 connected with each other in the circumferential direction are connected through a first elastic member 2203, the locking blocks 2202 are located on the outer side of the workpiece 14, a guide plate 2204 is axially arranged on the locking seat 2201 in a penetrating manner, the lower end of the guide plate 2204 is matched and extended into a guide groove 2205 on the locking block 2202, a locking screw 2206 is movably connected to the locking seat 2201, the lower end of the locking screw 2206 is fixedly connected to the locking block 2202, the locking block 2202 and the locking seat 2201 move relatively through the locking screw 2206, and the locking seat 2201 moves up and down relative to the locking block 2202 in a reciprocating manner in the radial direction.

The inner side of the locking block 2202 is provided with a locking surface 2207 matched with the workpiece 14, the outer side is provided with an inclined contact surface 2208, the locking seat 2201 is provided with a pressing surface 2209 matched with the contact surface 2208, the locking seat 2201 moves downwards to enable the pressing surface 2209 to be attached to the contact surface 2207 so as to push the locking block 2202 to move radially inwards, the locking seat 2201 moves upwards to enable the pressing surface 2209 to be separated from the contact surface 2207, and the locking block 2202 is pushed by a first elastic piece 2203 to move radially outwards.

The locking seat 2201 is provided with a second elastic part 2210, and the lower end of the second elastic part 2210 is connected with the locking block 2202. The locking seat 2201 is connected with each locking block 2202 through two guide plates 2204 and two locking screws 2206. Adjacent locking blocks 2202 are connected by two first elastic members 2203 arranged in parallel. The interior of the locking seat 2201 is further provided with a connecting plate 2211, the connecting plate 2211 is provided with a plurality of third elastic members 2212, and the upper ends of the third elastic members 2212 are connected with the upper template 21. The first elastic member 2203, the second elastic member 2210 and the third elastic member 2212 are all spring-like members such as springs and disc springs.

The upper template 21 drives the locking mechanism 22 to move downwards, in an initial state, the locking blocks 2202 are in a separated state due to the tension of the first elastic piece 2203, the workpiece 14 enters the inner sides of the locking blocks 2202, the upper template 21 moves downwards to drive the locking seat 2201 to move downwards, the locking seat 2201 starts to press the locking blocks 2202 downwards, the pressing surface 2209 of the locking seat 2201 contacts the contact surface 2208 of the locking blocks 2202, under the guiding action of the guide plate 220, the locking seat 2201 presses the locking block 2202 downwards to enable the locking block 2202 to contract and move towards the direction of the workpiece 14 until the locking block 2202 presses the workpiece 14, at the same time, the upper blade 2101 on the upper platen 21 moves down, the upper blade 2201 contacts the slide 1301, and pushes the slide 1301 to move forward, the punch 1302 on the slide 1301 processes the workpiece 14, and after one processing is finished, the upper die plate 21 moves upwards to drive the locking seats 2201 to be separated from the locking blocks 2202 upwards, and the locking blocks 2202 expand outwards to be separated from the workpiece 14. Through the elasticity release between the latch segment 2202, strut the clearance between the latch segment 2202, make the work piece get into the locking region, then the latch seat 2201 moves down and locks work piece 14 through latch segment 2202 to reach work piece 14 when the side cut, guarantee that the part does not rock, make work piece 14 location accurate.

In addition, referring to fig. 6 and 7, a rotary positioning mechanism 15 is further installed on the lower die assembly 1, the rotary positioning mechanism 15 includes a driving head 1501, a transmission mechanism 1502 is installed on the driving head 1501, a transmission gear 1503 is meshed on the transmission mechanism 1502, the driving head 1501 drives the transmission mechanism 1502 to reciprocate to drive the transmission gear 1503 to rotate in a reciprocating manner, a plurality of circumferentially arranged limiting grooves 1504 are formed in an inner ring of the transmission gear 1530, a latch 1203 is connected to the radial direction of the die machine 12 through a fourth elastic member 1202, the latch 1203 is pushed into the limiting grooves 1504 by the fourth elastic member 1202, and the transmission mechanism drives the transmission gear 1503 to rotate in a reciprocating manner so that the latch 1203 rotates along with the transmission gear 1503 or the latch 1203 is separated from the limiting grooves.

The bottom surface of the die mechanism 12 is provided with a mounting groove 1201 arranged in the radial direction, the fourth elastic member 1202 and the latch 1203 are arranged in the mounting groove 1201, one end of the fourth elastic member 1202 is connected to the central part of the die mechanism 12, and the other end is connected with the latch 1203. The cross section of the clamping part of the clamping tongue 1203 and the limiting groove 1504 is wedge-shaped. The fourth elastic part is a spring, a disc spring or a telescopic ejector rod.

The transmission mechanism 1502 includes a guide bar 1505, a guide bar 1506 is provided on the guide bar 1505 connected to the driving head 1501, the guide bar is disposed on the guide rail 1507 and drives the guide bar 1506 to reciprocate through the driving head, the guide bar 1506 has a tooth surface 1508, and the tooth surface 1508 is engaged with the transmission gear 1503. The front end of rack 1506 is equipped with spacing post 1509. The driving head 1501 is an air cylinder, a hydraulic cylinder or an electric push rod.

The driving head 1501 works to drive the guide bar 1506 to move forwards, the tooth surface 1508 of the guide bar 1506 moves forwards and simultaneously drives the transmission gear 1503 to rotate anticlockwise, the clamping tongue 1203 of the female die mechanism 12 is pushed into the limiting groove 1504 of the inner ring of the transmission gear 1503 through the fourth elastic piece 1202 in the radial direction, the female die mechanism 12 starts to rotate synchronously under the driving of the transmission gear 1503, and the guide bar 1506 stops rotating after moving forwards to the position of the limiting column 1509. Then the driving head 1501 starts to retreat, the guide bar 1506 is synchronously driven to retreat, the transmission gear 1503 starts to rotate reversely, and after the transmission gear 1503 rotates reversely, because the cross section of the clamping part of the clamping tongue 1203 and the limiting groove 1504 is in a wedge shape, the 1203 clamping tongue is separated from the limiting groove 1504 under the pushing of the transmission gear 1503, at the moment, the female die mechanism 12 does not rotate along with the transmission gear 1503, and the guide bar 1506 retreats to the initial position, so that the one-time rotation of the workpiece is completed. When the workpiece 14 needs to be rotated again, the above steps are repeated. The return force of the cylinder and the limit return distance of the clamping tongue are unloaded through the inner ratchet wheel. The purpose that the gear can only directionally move forwards for an infinite circulating distance is achieved. The degree of rotation of the workpiece 14 is adjusted by the stop posts.

The rotary edge trimmer has the following specific working principle: the die mechanism 12 drives the workpiece 14 to move to a processing station, the driving head 1501 works to drive the guide strip 1506 to move forward, the tooth surface 1508 of the guide strip 1506 advances and drives the transmission gear 1503 to rotate anticlockwise, the clamping tongue 1203 is pushed into the limiting groove 1504 of the inner ring of the transmission gear 1503 through the fourth elastic piece 1202 in the radial direction of the die mechanism 12, meanwhile, the female die mechanism 12 is driven by the transmission gear 1503 to start synchronous rotation, the guide strip 1506 stops rotating after moving forward to the position of the limit column 1509, then the driving head 1501 starts to retreat, the guide bar 1506 is synchronously driven to retreat, the transmission gear 1503 starts to rotate reversely, after the transmission gear 1503 rotates reversely, because the cross section of the clamping part of the clamping tongue 1203 and the limiting groove 1504 is in a wedge shape, the clamping tongue 1203 is separated from the limiting groove 1504 under the pushing of the transmission gear 1503, at this time, the female die mechanism 12 does not rotate along with the transmission gear 1503, and the guide bar 1506 retreats to the initial position. Then, the locking blocks 2202 are separated by the tension of the first elastic element 2203, the workpiece 14 enters the inner side of the locking blocks 2202, the upper template 21 moves downwards to drive the locking seat 2201 to move downwards, the locking seat 2201 starts to press the locking blocks 2202 downwards, the pressing surface 2209 of the locking seat 2201 contacts the contact surface 2208 of the locking blocks, under the guiding action of the guide plate 2204, the locking seat 2201 presses the locking blocks 2202 downwards to enable the locking blocks 2202 to move in a contracting mode towards the workpiece 14 until the locking blocks 2202 press the workpiece 14 tightly, meanwhile, the upper slotting tool 2101 on the upper template 21 moves downwards, the upper slotting tool 2101 contacts the slider 1301 and pushes the slider 1301 to move forwards, and the punch 1302 on the slider 1301 processes the workpiece 14, and after one-time processing is completed. The upper die plate 21 is then moved upward to drive the locking seats 2201 upward to disengage the locking blocks 2202, and the locking blocks 2202 expand outward to disengage the workpiece 14. And then repeating the working process of the rotary positioning mechanism 15, driving the workpiece 14 to rotate, and then processing the workpiece 14 through the movement of the locking mechanism 22 again until the processing is finished.

Different from the prior art, the locking mechanism of the rotary edge trimmer can achieve the purpose of locking the workpiece, ensures that the workpiece does not shake during side cutting, and has accurate positioning and simple structure.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a locking mechanism of rotatory bead cutter, its characterized in that, includes the latch segment, the inboard circumference equipartition of latch segment has a plurality of latch segments, links to each other be connected through first elastic component between the circumference of latch segment to the latch segment is located the outside of work piece, wear to be equipped with the deflector in the axial of latch segment, the deflector lower extreme cooperation stretches into the guide way on the latch segment in, swing joint has locking screw still on the latch segment, locking screw's lower extreme and latch segment fastening connection, through locking screw relative motion between latch segment and the latch segment, the relative latch segment of latch segment reciprocates and makes the latch segment along radial reciprocating motion with locking or unclamp the work piece.

2. The locking mechanism of claim 1, wherein the locking block has a locking surface engaging with the workpiece on an inner side thereof, and an inclined contact surface on an outer side thereof, and the locking seat has a pressing surface engaging with the contact surface, the locking seat moves downward to make the pressing surface engage with the contact surface to push the locking block to move radially inward, the locking seat moves upward to separate the pressing surface from the contact surface, and the locking block is pushed by the first elastic member to move radially outward.

3. The locking mechanism of claim 2, wherein the locking seat is provided with a second elastic member, and a lower end of the second elastic member is connected with the locking block.

4. The locking mechanism of claim 3, wherein the locking seat is connected to each locking block by two guide plates and two locking screws.

5. The locking mechanism of claim 3, wherein adjacent locking blocks are connected by two first elastic members arranged in parallel.

6. The locking mechanism according to claim 4 or 5, wherein a connecting plate is further arranged inside the locking seat, a plurality of third elastic members are mounted on the connecting plate, an upper mold plate is arranged above the locking seat and the connecting plate, and the upper ends of the third elastic members are connected with the upper mold plate.

7. The latch mechanism of claim 6 wherein the first, second and third resilient members are each a spring.