CN-121989180-A - Automatic fixture clamping device

CN121989180ACN 121989180 ACN121989180 ACN 121989180ACN-121989180-A

Abstract

The invention relates to the technical field of workpiece locking, and discloses an automatic fixture clamping device which comprises a fixture, at least two locking mechanisms, a grabbing head, unlocking mechanisms and rotating mechanisms, wherein a placing groove for placing and limiting a workpiece is formed in the fixture, the locking mechanisms comprise lock bases, lock pieces and locking driving assemblies, the lock bases are arranged on the fixture and are positioned on the outer sides of the placing groove, the locking driving assemblies are arranged between the lock bases and the lock pieces and are used for driving the lock pieces to be locked with the lock bases, the unlocking mechanisms are arranged on one side of the fixture, the rotating mechanisms are arranged on the output ends of the unlocking mechanisms, the grabbing heads are rotatably arranged on the output ends of the unlocking mechanisms and are in transmission connection with the rotating mechanisms, the number of the grabbing heads and the number of the locking mechanisms are the same, the unlocking mechanisms are in one-to-one correspondence with the number of the grabbing heads, the grabbing heads are used for driving the corresponding lock pieces to be unlocked with the lock bases, or the corresponding lock pieces are unlocked, and the rotating mechanisms are used for driving the grabbing heads to rotate towards a clamping position or a releasing position. The invention can solve the problem of how to improve the production efficiency.

Inventors

YANG ZHENLONG
XIE XIANREN
CHEN ZHENGHAO
CHEN XIAOJUN
CHEN HUIXING
HUANG PEIDE

Assignees

厦门竣铭科技有限公司

Dates

Publication Date: 20260508
Application Date: 20260408

Claims (8)

1. The utility model provides a frock automatic clamping device which characterized in that includes: the jig is provided with a placing groove for placing and limiting the workpiece; the locking driving assembly is arranged between the lock seat and the lock piece and is used for driving the lock piece to be locked with the lock seat so as to lock the lock piece at a clamping position or a loosening position; The device comprises a gripping head, an unlocking mechanism and a rotating mechanism, wherein the unlocking mechanism is arranged on one side of the jig, the rotating mechanism is arranged on the output end of the unlocking mechanism, the gripping head is rotatably arranged on the output end of the unlocking mechanism and is in transmission connection with the rotating mechanism, the gripping heads and the locking mechanisms are the same in number and are arranged in a one-to-one correspondence manner, the unlocking mechanism is used for driving the gripping head to grip and drive the corresponding locking piece and the locking seat to unlock or release the corresponding locking piece, and the rotating mechanism is used for driving the gripping head and the locking piece gripped by the gripping head to rotate towards the clamping position or the releasing position when the locking piece and the locking seat are unlocked; the locking piece is tightly pressed on the workpiece in the placing groove when in the clamping position, and is positioned outside the placing groove when in the releasing position.
2. The automatic fixture clamping device according to claim 1, wherein a plurality of locking mechanisms, an unlocking mechanism and a rotating mechanism are arranged on two sides of the placing groove in the length direction or/and the width direction, and a plurality of grabbing heads located on the same side of the placing groove are rotatably arranged on the output end of the unlocking mechanism and are in transmission connection with the same rotating mechanism.
3. The automatic fixture clamping device according to claim 2, wherein the rotating mechanism comprises a linkage plate, a linkage plate driving assembly and swing arms, the linkage plate is slidably arranged on the output end of the unlocking mechanism, the linkage plate driving assembly is arranged on the output end of the unlocking mechanism and is in transmission connection with the linkage plate, the number of the swing arms is the same as that of the grabbing heads positioned on the same side of the placing groove, the swing arms are arranged in a one-to-one correspondence manner, one ends of a plurality of the swing arms are fixedly connected with the corresponding grabbing heads respectively, and the other ends of the swing arms are slidably connected with the linkage plate; The linkage plate driving assembly is used for driving the linkage plate to slide, and the linkage plate drives the corresponding grabbing head and the grabbing locking piece to rotate 90 degrees towards the clamping position or the loosening position through the swing arm.
4. The automatic fixture clamping device according to claim 3, wherein the swing arms are provided with sliding grooves, the sliding grooves extend radially along the rotating shaft of the grabbing head, the linkage plates are provided with pulleys, the number of the pulleys is the same as that of the swing arms, the pulleys are arranged in a one-to-one correspondence manner, and the pulleys are in sliding connection with the sliding grooves corresponding to the swing arms.
5. The automatic fixture clamping device according to claim 3 or 4, wherein the rotating mechanism further comprises locking limiting arms, the number of the locking limiting arms is the same as that of the grabbing heads positioned on the same side of the placing groove, the locking limiting arms are arranged in a one-to-one correspondence manner, and a plurality of the locking limiting arms are fixedly arranged on the same linkage plate; when the locking piece rotates to the clamping position, the locking piece is abutted with the corresponding locking limiting arm.
6. The automatic fixture clamping device according to any one of claims 2-4, wherein the unlocking mechanism comprises a translation driving assembly, a lifting slide seat and a telescopic driving assembly, the translation driving assembly is arranged on one side of the fixture, the lifting slide seat is slidably arranged on the output end of the translation driving assembly, the telescopic driving assembly is arranged on the lifting slide seat, the output end of the telescopic driving assembly faces the fixture, and a plurality of gripping heads positioned on the same side of the placing groove are rotatably arranged on the same lifting slide seat; The translation driving assembly is used for driving the lifting sliding seat and the grabbing heads on the lifting sliding seat to move towards or back to the jig along a horizontal direction, and the telescopic driving assembly is used for pushing the lifting sliding seat and the grabbing heads on the lifting sliding seat to lift and slide.
7. The automatic fixture clamping device according to any one of claims 1-4, wherein a placing surface is arranged at the top of the lock seat, a limiting channel for inserting and limiting the pressing block is arranged on the placing surface, the lock piece comprises a pull rod, the pressing block and a round pull block, the pull rod penetrates through the limiting channel and is vertically and slidably arranged on the lock seat, the pressing block is fixedly arranged on the pull rod, the pull block is fixedly arranged at the top end of the pull rod, the locking driving assembly comprises an elastic piece, two ends of the elastic piece are respectively connected with the lock seat and the pull rod, the elastic piece is provided with elastic force for driving the pull rod to slide downwards so as to lock the lock piece and the lock seat, a containing groove for allowing the pull rod to be inserted is arranged on the grabbing head, and a yielding groove for allowing the pull rod to be inserted is arranged on the bottom groove wall of the containing groove; When the locking piece rotates to the loosening position, the pressing block is staggered from the limiting channel in position and is positioned outside the placing groove, and the pressing block is tightly pressed on the placing surface under the action of the elasticity of the elastic piece.
8. The automatic fixture clamping device according to claim 7, wherein an unlocking limiting arm is further arranged on the placing surface, and the pressing block is abutted with the unlocking limiting arm when the locking piece rotates to the loosening position.

Description

Automatic fixture clamping device Technical Field The invention relates to the technical field of workpiece locking, in particular to an automatic fixture clamping device. Background In the field of industrial production manufacturing, the tool fixture is a key auxiliary tool for ensuring smooth working procedures such as workpiece machining, assembly and the like, and particularly in a scene of accurately positioning and reliably clamping a workpiece, the performance of the tool fixture directly influences the production efficiency and the product quality. At present, widely applied tools mostly rely on manual operation to clamp and loosen materials. Specifically, an operator needs to manually rotate the pressing block on the outer side of the jig to rotate the pressing block above the limiting groove of the jig and tightly press the pressing block on the edge position of the material in the limiting groove so as to finish the clamping operation of the material, and when the material on the jig needs to be loosened, the operator needs to manually rotate the pressing block again to completely rotate the pressing block out of the limiting groove. However, the conventional tool clamping structure has a plurality of defects in practical application. First, the production efficiency problem is very prominent. In actual production, in order to guarantee the clamping effect of material, at least two pressing blocks are usually arranged on the tool. This means that each time the operator clamps or loosens the material, all need rotate the operation to a plurality of briquetting one by one, and efficiency is lower. Secondly, the clamping quality is difficult to ensure. The manual operation lacks accurate location and angle control means, and operating personnel hardly guarantees that the angle of briquetting is unanimous at every turn, and the installation height of briquetting is fixed, can't adjust according to the actual conditions of material, and in actual production, the thickness of material, roughness equidimension often have the error, the problem such as the tight not in place of clamp, skidding or offset in position can appear, leads to the material to become flexible easily in the course of working. Based on the defects in the prior art, the development of the automatic fixture clamping device has important practical significance. Disclosure of Invention (One) solving the technical problems The invention provides an automatic fixture clamping device which at least solves the technical problem of how to improve production efficiency. (II) technical scheme In order to solve the technical problems, the invention provides the following technical scheme that the automatic fixture clamping device comprises: The jig is provided with a placing groove for placing and limiting the workpiece; The locking driving assembly is arranged between the lock seat and the lock piece and is used for driving the lock piece and the lock seat to be locked so as to lock the lock piece at a clamping position or a loosening position; The device comprises a gripping head, an unlocking mechanism and a rotating mechanism, wherein the unlocking mechanism is arranged on one side of a jig, the rotating mechanism is arranged on the output end of the unlocking mechanism, the gripping head is rotatably arranged on the output end of the unlocking mechanism and is in transmission connection with the rotating mechanism, the gripping heads and the locking mechanisms are the same in number and are arranged in a one-to-one correspondence manner; the locking piece is tightly pressed on the workpiece in the placing groove when in the clamping position, and is positioned outside the placing groove when in the releasing position. Further, a plurality of locking mechanisms, an unlocking mechanism and a rotating mechanism are arranged on two sides of the length direction or/and the width direction of the placing groove, and a plurality of grabbing heads located on the same side of the placing groove are rotationally arranged on the output end of the same unlocking mechanism and are in transmission connection with the same rotating mechanism. The rotating mechanism comprises a linkage plate, a linkage plate driving assembly and swing arms, wherein the linkage plate is arranged on the output end of the unlocking mechanism in a sliding manner, the linkage plate driving assembly is arranged on the output end of the unlocking mechanism and is in transmission connection with the linkage plate, the number of the swing arms is the same as that of the grabbing heads positioned on the same side of the placing groove, the swing arms are arranged in a one-to-one correspondence manner, one ends of the plurality of swing arms are fixedly connected with the corresponding grabbing heads respectively, and the other ends of the plurality of swing arms are in sliding connection with the linkage plate; the linkage plate driving assembly is used for driving the linkage pl