CN218476114U

CN218476114U - Vertical gear shaping clamp with crank gear shaft

Info

Publication number: CN218476114U
Application number: CN202222275812.XU
Authority: CN
Inventors: 钟明; 付国祥
Original assignee: Sichuan Shenzhou Precision Technology Co ltd
Current assignee: Sichuan Shenzhou Precision Technology Co ltd
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2023-02-14
Anticipated expiration: 2032-08-29

Abstract

The utility model discloses a vertical gear shaping clamp with a crank gear shaft, which comprises a clamp body with a ladder hole arranged inside, a lower top arranged at the upper end of the clamp body, and a pull disc arranged in the ladder hole below the lower top in a sliding way, and is characterized in that the upper end of the clamp body is fixedly connected with an expansion core, the rear end of a pull rod passes through the expansion core and is connected with the pull disc, the pull rod is provided with an annular groove, an elastic expansion sleeve is sleeved outside the pull rod and the expansion core, the upper end of the elastic expansion sleeve is fixedly provided with a convex ring clamped in the annular groove, and the inner circle of the lower end of the elastic expansion sleeve and the outer circle of the upper end of the expansion core are provided with matched outer supporting conical surfaces; the utility model discloses not only positioning accuracy is high, the impact force that bears is big, and the stability of work piece is good when just the gear shaping, can improve processingquality.

Description

Vertical gear shaping clamp with crank gear shaft

Technical Field

The utility model relates to a vertical gear shaping anchor clamps, especially be used for taking the vertical gear shaping anchor clamps of articulate pinion.

Background

As shown in fig. 1 and 2, the gear shaft with a crank as the transmission component comprises a gear shaft 15 and a crank 16 which are integrally connected, a gear 17 needs to be processed on the gear shaft 15, and an eccentric hole 18 is arranged on the crank 16; the existing vertical gear shaping clamp for the crank gear shaft comprises a clamp body, a lower tip, a pull disc and a prismatic pin, wherein a stepped hole is formed in the clamp body; during gear shaping, two ends of the gear shaft are respectively propped by the lower tip and the upper tip of the machine tool, and the pull disc drives the prismatic pin to be inserted into the eccentric hole, so that a workpiece can be fixed; however, the prismatic pin has a gap in the eccentric hole, so that the positioning accuracy is poor, the borne impact force is small, the stability of the workpiece is poor during gear shaping, and the processing quality is affected.

Disclosure of Invention

The utility model aims at the above-mentioned not enough that prior art exists, provide a take vertical gear shaping anchor clamps of crank gear shaft, it is not only that positioning accuracy is high, the impact force of bearing is big, and the stability of work piece is good when the gear shaping, can improve processingquality.

In order to achieve the above object, the utility model discloses a take vertical gear shaping anchor clamps of crank gear shaft, establish the anchor clamps body of shoulder hole in including, locate the lower top of anchor clamps body upper end, slide and locate the drawing dish in the top below shoulder hole down, its characterized in that anchor clamps body upper end links firmly has the core that expands, and the rear end of a pull rod passes the core that expands and draws the dish hookup, and the pull rod is equipped with the annular, and an elasticity expands the cover and overlaps outside pull rod and the core that expands, and elasticity expands the cover upper end and set firmly the bulge loop of card in the annular, and the circle is equipped with the matched with outrigger conical surface with the core upper end excircle that expands in the elasticity expands the cover lower extreme.

During gear shaping, two ends of a gear shaft are respectively propped by a lower tip and an upper tip of a machine tool, an elastic expansion sleeve is arranged in an eccentric hole of a workpiece, a pull rod and the elastic expansion sleeve are driven to move by a pull disc, and the expansion core and the elastic expansion sleeve expand the elastic expansion sleeve through matched supporting conical surfaces so as to expand and fix the workpiece; because the clearance between the elastic expansion sleeve and the workpiece is eliminated, the positioning precision is high, the borne impact force is large, the stability of the workpiece is good during gear shaping, and the processing quality can be improved;

as a further improvement of the utility model, the pull disc is internally provided with an exhaust hole communicating the front end face and the rear end face of the pull disc; the pull plate can move upwards quickly;

as a further improvement of the utility model, the pull rod is provided with an axial front chute, the expansion core is connected with a front screw, and the head of the front screw is arranged in the front chute; the pull disc is provided with an axial rear sliding groove, the clamp body is connected with a rear screw, and the head of the rear screw is arranged in the rear sliding groove; the pull rod and the pull disc can be prevented from rotating during moving;

to sum up, the utility model discloses not only positioning accuracy is high, the impact force that bears is big, and the stability of work piece is good when the gear shaping, can improve processingquality.

Drawings

Fig. 1 is a front view of a cranked pinion.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a front view of the embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 3, the vertical gear shaping clamp with the crank gear shaft of the embodiment includes a clamp body 1 with a stepped hole therein, a lower tip 2 arranged at the upper end of the clamp body, and a pull disc 3 slidably arranged in the stepped hole below the lower tip 2, wherein an exhaust hole 4 communicating the front and rear end faces of the pull disc 3 is arranged in the pull disc 3, an expansion core 5 is fixedly connected to the upper end of the clamp body 1 through a screw, the rear end of a pull rod 6 passes through the expansion core 5 and is connected with the pull disc 3 through a thread, the pull rod 6 is provided with a ring groove 7, an elastic expansion sleeve 8 is sleeved outside the pull rod 6 and the expansion core 5, a convex ring 9 clamped in the ring groove 7 is fixedly arranged at the upper end of the elastic expansion sleeve 8, and an outer supporting conical surface 10 matched with the inner circle at the lower end of the elastic expansion sleeve 8 and the outer circle at the upper end of the expansion core 5 is arranged; the pull rod 6 is provided with an axial front chute 11, the expansion core 5 is connected with a front screw 12 through threads, and the head of the front screw 12 is arranged in the front chute 11; the pull disc 3 is provided with an axial rear sliding groove 13, the clamp body 1 is connected with a rear screw 14, and the head of the rear screw 14 is arranged in the rear sliding groove 13;

during gear shaping, the fixture body 1 is arranged on a workbench 19 of a machine tool, two ends of a gear shaft 15 of a workpiece are respectively propped by a lower tip 2 and an upper tip of the machine tool, the elastic expansion sleeve 8 is arranged in an eccentric hole of a crank 16, a pull rod 6 and the elastic expansion sleeve 8 are driven by a pull disc 3 to move downwards, the expansion core 5 and the elastic expansion sleeve 8 expand the elastic expansion sleeve 8 through a matched external supporting conical surface 10, and the workpiece can be expanded and fixed; because the clearance between the elastic expansion sleeve 8 and the workpiece is eliminated through expansion, the positioning precision is high, the borne impact force is large, the stability of the workpiece is good during gear shaping, and the processing quality can be improved; the exhaust hole 4 can realize the rapid upward movement and resetting of the pull disc 3; the front screw 12 is matched with the front sliding chute 11, and the rear screw 14 is matched with the rear sliding chute 13, so that the pull rod 6 and the pull disc 3 can be prevented from rotating when moving.

Claims

1. The utility model provides a take vertical gear shaping anchor clamps of crank gear shaft, including the anchor clamps body of establishing the shoulder hole in, locate the lower top of anchor clamps body upper end, slide and locate the drawing dish in the shoulder hole of top below down, its characterized in that anchor clamps body upper end is connected firmly has the core that expands, the rear end of a pull rod passes the core that expands and draws the dish hookup, the pull rod is equipped with the annular, an elasticity expands the cover and overlaps outside pull rod and the core that expands, elasticity expands the cover upper end and sets firmly the bulge loop of card in the annular, the interior circle of elasticity expansion cover lower extreme and the core upper end excircle of expanding are equipped with the outer conical surface that props matched with.

2. The vertical gear shaping fixture with crank-toothed shaft according to claim 1, wherein the pull plate has vent holes communicating the front and rear end faces thereof.

3. The vertical gear shaping clamp with the crank-gear shaft as claimed in claim 2, wherein the pull rod is provided with an axial front sliding slot, the expansion core is connected with a front screw, and the head of the front screw is arranged in the front sliding slot; the pull disc is provided with an axial rear sliding groove, a rear screw is connected to the clamp body, and the head of the rear screw is arranged in the rear sliding groove.