CN-121988812-A - Quick detach fixture tooling for gear hobbing

CN121988812ACN 121988812 ACN121988812 ACN 121988812ACN-121988812-A

Abstract

The invention relates to the technical field of gear manufacturing and processing, in particular to a quick-dismantling fixture tool for gear hobbing, which comprises a vertical guide rail arranged in a gear hobbing machine, a round table-shaped workpiece main shaft, a supporting piece and a supporting plate, wherein the bottom end and the side surface of the vertical guide rail are respectively adjacent to a rotary clamping piece and a pressing piece, the round table-shaped workpiece main shaft is arranged right below the pressing piece and adjacent to a hob, the upper part of the workpiece main shaft is coaxially provided with the supporting piece through the quick-dismantling piece, the synchronous locking/loosening of a fixture module is realized through the matching of a connecting screw rod in the quick-dismantling piece and an adjusting plate, the production changing time is greatly shortened from the traditional installation time, the effect is directly aimed at the requirements of small and medium batch varieties in gear manufacturing, the downtime of a machine tool is reduced, the comprehensive efficiency of equipment is improved, and the radial unfolding mechanism of a supporting clamping plate is matched through the elastic connection design of an elastic cavity, the workpiece is prevented from jumping under the pressing head pressing, and the tooth form error and the tooth direction error are effectively controlled.

Inventors

DING XIANG
LI XIAOBING
WU XIUHONG
XIA ZHENGHONG
YANG XIAOLE

Assignees

泰州市宏祥动力机械有限公司

Dates

Publication Date: 20260508
Application Date: 20260408

Claims (10)

1. Quick detach anchor clamps frock is used in gear hobbing processing, a serial communication port, include: the bottom end and the side surface of the vertical guide rail are respectively adjacent to the rotary clamping piece and the pressing piece; The round table-shaped workpiece spindle is arranged right below the pressing piece and is adjacent to the hob, the upper part of the workpiece spindle is coaxially provided with a supporting piece through a quick-dismantling piece, and the supporting piece can be used for placing a workpiece and driving the supporting piece to be outwards unfolded and support the workpiece in cooperation with the descending pressing piece; the quick-release piece comprises a connecting seat arranged at the top of the rotating base, wherein upper threaded holes matched with the lower threaded holes in number and position are formed in the connecting seat, and a plurality of connecting screws are connected with the rotating base through the upper/lower threaded holes; the support piece comprises an elastic cavity coaxially connected with the bottom end of the connecting seat, the bottom end of the elastic cavity is positioned in the workpiece spindle and is provided with a butt joint, and the elastic cavity is connected with a rotating motor at the position where the workpiece spindle is installed through the butt joint.
2. The quick-release fixture for gear hobbing, as set forth in claim 1, characterized in that the rotary clamping member comprises a driving motor installed at the bottom of the vertical guide rail, the bottom end of the motor is fixedly connected with a mounting frame and driving teeth in sequence, a first cylinder and a second cylinder which are matched with each other are symmetrically and fixedly installed on two sides of the top of the mounting frame in sequence, and arc-shaped clamping arms are symmetrically installed at the driving end of the second cylinder and used for clamping a workpiece.
3. The quick release fixture tool for gear hobbing of claim 1, wherein the pressing piece comprises a connecting sliding plate sliding on one side of the vertical guide rail, and a pressing head is fixedly connected to the bottom of the other side of the connecting sliding plate; the connection part of the pressure head and the connecting sliding plate is provided with a spring piece.
4. The quick release fixture tool for gear hobbing is characterized in that the workpiece spindle comprises a rotating base coaxially arranged at the top of the workpiece spindle, the rotating base is connected with the workpiece spindle through a bearing, a plurality of lower threaded holes are formed in the periphery of the top of the rotating base, and connecting ports are coaxially formed in the middle of the top ends of the workpiece spindle and the rotating base.
5. The quick release fixture for gear hobbing of claim 1, wherein the connecting seat is symmetrically provided with positioning marks on two sides of each upper threaded hole, and a rotary mark is arranged between the two positioning marks.
6. The quick release fixture for gear hobbing of claim 1, wherein a directional mark is radially arranged on one side of the top of each connecting screw, a positioning mark is screwed down along the direction of a rotating mark and finally points to the other positioning mark when the directional mark is installed, and a connecting vertical groove is formed in the outer wall of each connecting screw.
7. The quick release fixture for gear hobbing of claim 5, wherein the connecting seat is fixedly connected with an adjusting base coaxially, a movable chamber is arranged in the middle of the adjusting base, a spiral thread notch is clamped in the movable chamber, the thread notch is slidably connected with a circular ring block through a thread block, the circular ring block extends outwards and is fixedly connected with an adjusting disc outside the adjusting base, protrusions are arranged inside and outside the adjusting disc, the protrusions inside the adjusting disc can be connected with each connecting screw through a connecting vertical groove, and the connecting screws are synchronously driven to rotate in upper/lower threaded holes.
8. The quick release fixture tool for gear hobbing of claim 1, wherein two side bars are symmetrically arranged on two sides of the inner wall of the elastic cavity, and a limiting inner ring block is fixedly connected to the inner wall of the joint of the elastic cavity and the top of the connecting seat.
9. The quick release fixture tool for gear hobbing is characterized in that a vertical rod is vertically and slidably connected in the elastic cavity through a side bar, the top of the vertical rod is fixedly connected with an abutting disc, the abutting disc abuts against the bottom of the pressure head, the bottom of the vertical rod is elastically connected with the elastic cavity through a homing spring, and is blocked and limited by a limiting inner ring block when the elastic cavity moves vertically; The top of connecting seat installs the accepting bench, accept the bench and be multistage from the round platform constitution that the supreme diameter reduces, the tube-shape internal diameter of its bottom is greater than the internal diameter of elasticity cavity, and accept the coaxial setting of bench and elasticity cavity, it evenly has offered a plurality of intercommunication notch to accept every round platform circumference of bench.
10. The quick-release fixture for gear hobbing is characterized in that a plurality of communicating slots in the same vertical direction are formed into a group, supporting splints with lengths matched with the diameters of round tables are slidably connected in each group of communicating slots, a single-side supporting plate is formed by the plurality of supporting splints in the same vertical direction, inclined connecting sliding grooves are formed in the inner side of each supporting plate, the connecting sliding grooves are arranged from the outside inwards in an inclined manner, a horizontal transverse sliding block is slidably connected in each connecting sliding groove, and the inner end of each transverse sliding block is fixedly connected with the outer wall of a vertical rod through an inner fixing block.

Description

Quick detach fixture tooling for gear hobbing Technical Field The invention relates to the technical field of gear manufacturing and machining, in particular to a quick-dismantling fixture tool for gear hobbing. Background The hobbing is a core process in the gear manufacturing field, and is particularly suitable for the efficient forming of involute cylindrical gears, helical gears and worm gears. The process cuts out accurate tooth form through continuous generating motion between the hob and the blank, and the processing quality directly determines the transmission precision and the service life of the gear product. In the gear hobbing system, the fixture tool is used as a key component for connecting a machine tool and a workpiece, so that the workpiece is required to be stably positioned under the action of cutting force, and the fixture tool is required to be rapidly assembled and disassembled to adapt to flexible production requirements of multiple varieties and small batches. The traditional clamp usually adopts a connecting mode of sequentially locking a single screw pressing plate and a nut, and the traditional clamp exposes the bottlenecks of long adjustment time consumption, high labor intensity and the like in the production changing process, so that the requirements of the modern manufacturing industry on efficiency are difficult to meet. Disclosure of Invention The invention aims to provide a quick-release fixture tool for gear hobbing processing, which aims to solve the problems in the background technology. In order to achieve the purpose, the invention provides a quick-release fixture tool for gear hobbing, which comprises the following components: the bottom end and the side surface of the vertical guide rail are respectively adjacent to the rotary clamping piece and the pressing piece; the round table-shaped workpiece spindle is arranged right below the pressing piece and adjacent to the hob, the supporting piece is coaxially arranged on the upper portion of the workpiece spindle through the quick-dismantling piece, and the workpiece can be placed at the supporting piece and matched with the descending pressing piece to drive the supporting piece to be unfolded outwards and support the workpiece. As a further improvement of the scheme, the workpiece main shaft comprises a rotating base coaxially arranged at the top of the workpiece main shaft, the middle of the rotating base and the workpiece main shaft are connected through a bearing, a plurality of lower threaded holes are formed in the circumferential direction of the top of the rotating base, and connecting ports are coaxially formed in the middle of the top ends of the workpiece main shaft and the rotating base. As a further improvement of the scheme, the rotary clamping piece comprises a driving motor arranged at the bottom of the vertical guide rail, the bottom end of the motor is sequentially fixedly connected with a mounting frame and driving teeth, a first cylinder and a second cylinder which are matched with each other are sequentially and symmetrically and fixedly arranged on two sides of the top of the mounting frame, and arc-shaped clamping arms are symmetrically arranged at the driving end of the second cylinder and used for clamping workpieces. As a further improvement of the scheme, the pressing piece comprises a connecting sliding plate sliding on one side of the vertical guide rail, and the bottom of the other side of the connecting sliding plate is fixedly connected with a pressing head; The elastic material is arranged at the joint of the pressure head and the connecting sliding plate and used for guaranteeing certain buffering when the pressure head applies pressure vertically, and the elastic material can be a spring piece and can ensure elastic connection of the pressure head and the connecting sliding plate. As a further improvement of the scheme, the quick-dismantling piece comprises a connecting seat arranged at the top of the rotary base, wherein upper threaded holes matched with the lower threaded holes in number and position are formed in the connecting seat, a plurality of connecting screws are connected with the rotary base through the upper/lower threaded holes, positioning marks are symmetrically arranged on two sides of each upper threaded hole of the connecting seat, and a rotary mark is arranged between the two positioning marks; One side of the top of each connecting screw is radially provided with a pointing mark, when the pointing mark is installed, one positioning mark is aligned to be screwed along the direction of the rotating mark and finally points to the other positioning mark, and the outer wall of each connecting screw is provided with a connecting vertical groove; The connecting seat is fixedly connected with an adjusting base coaxially, a movable cavity is formed in the middle of the adjusting base, a spiral thread notch is formed in the inner portion of the movable cavity in a clamped mo