CN219235223U

CN219235223U - Quick positioner of cylinder special material forging spindle terminal surface centre bore

Info

Publication number: CN219235223U
Application number: CN202223490177.3U
Authority: CN
Inventors: 秦伟; 杨立华; 任春军; 刘志强; 王晓宇
Original assignee: Hebei Zhangxuan High Tech Co ltd; Xuanhua Iron and Steel Group Co Ltd
Current assignee: Hebei Zhangxuan High Tech Co ltd; Xuanhua Iron and Steel Group Co Ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-06-23
Anticipated expiration: 2032-12-27

Abstract

The utility model discloses a quick positioning device for a central hole of an end face of a cylindrical special material forging ingot, which comprises a V-shaped fixed block and a central positioning mechanism; the center positioning mechanism comprises a positioning tube, a nut, a punch, a disc and a positioning bolt; the punch penetrates through the guide hole on the disc and is perpendicular to the end face of the disc; one end of the positioning tube is vertically fixed on the disc; three identical nuts are uniformly distributed on the circumferential surface of the other end of the positioning pipe at intervals, the axis of each nut is perpendicularly intersected with the axis of the positioning pipe, one positioning bolt is arranged in each nut, the positioning bolts penetrate through the nuts and extend into the positioning pipe, and the three positioning bolts are identical; the V-shaped notch of the V-shaped fixing block faces to the axis of the positioning pipe, and the end face of the V-shaped notch is tightly adhered to the end face of the positioning pipe in parallel; the positioning tube, the guide hole and the punch are coaxial. The utility model can realize quick positioning of the central hole of the cylindrical forging ingot, improves positioning speed and precision, reduces the peeling amount of the ingot, and improves yield.

Description

Quick positioner of cylinder special material forging spindle terminal surface centre bore

Technical Field

The utility model relates to a quick positioning device for a central hole of an end face of a cylindrical special material forging ingot, and belongs to the technical field of machining.

Background

The defective layer on the metal surface is removed by turning, milling, planing and other mechanical processing methods, which is also called peeling. When producing parts with important purposes, the surface defects of steel ingots or billets need to be eliminated by a peeling method; peeling of the cylindrical forging ingot is generally completed on a lathe; the positioning and mounting of the ingot during turning generally adopts a mode that one end of the ingot is clamped by a four-jaw single-action chuck, and a center hole at the other end of the ingot is tightly propped by a thimble; before turning, a central hole is drilled on the end face of the cylindrical ingot by a central drill; the method for determining the central hole of the cylindrical ingot generally adopts a drawing method, and most commonly uses the method to determine three points at different positions of the same circumference as datum points on a circle where the outer surface of the ingot is positioned, and uses the three points as vertexes to draw a triangle, make vertical bisectors of any two sides and determine the intersection point as the position of the central hole; the outer surface of the forged cylindrical special ingot is uneven, and the three selected reference points cannot be determined to be on the same circumference, so that the position of the central hole of the cylindrical special ingot is determined by adopting a drawing and centering method, and the method has the advantages of high difficulty and low positioning precision; the further the center hole deviates from the actual center position, the larger the peeling amount of the ingot is, the lower the yield is, the resource waste is caused, the labor intensity of workers is increased, and the working efficiency is low. Therefore, the design of the quick positioning device for the center hole of the end face of the cylindrical special material forging ingot is a subject faced by relevant technicians.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a rapid positioning device for a central hole of an end face of a cylindrical special material forging ingot so as to improve the speed and the precision of the central positioning of the cylindrical special material forging ingot and improve the yield and the working efficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a quick positioning device for a central hole of an end face of a cylindrical special material forging ingot comprises a V-shaped fixed block and a central positioning mechanism; the center positioning mechanism comprises a positioning tube, a nut, a punch, a disc and a positioning bolt; the punch penetrates through the guide hole in the disc and is perpendicular to the end face of the disc; one end of the positioning tube is vertically fixed on the disc; three identical nuts are uniformly distributed on the circumferential surface of the other end of the positioning pipe at intervals, the axis of each nut is perpendicularly intersected with the axis of the positioning pipe, one positioning bolt is arranged in each nut, the positioning bolts penetrate through the nuts and extend into the positioning pipe, and the three positioning bolts are identical; the V-shaped notch of the V-shaped fixing block faces to the axis of the positioning pipe, and the end face of the V-shaped notch is tightly adhered to the end face of the positioning pipe in parallel; the positioning tube, the guide hole and the punch are coaxial.

Above-mentioned quick positioner of cylinder special material forging spindle terminal surface centre bore, positioning bolt includes scale, countersunk head screw and bolt body, the interval equipartition sets up three axial grooves on the screw rod of bolt body, is equipped with a scale in every recess, and the scale mark initial reference on three scale is located the same cross-section of perpendicular screw rod axis.

Above-mentioned quick positioner of cylinder special material forging spindle terminal surface centre bore, the one end of locating tube and disc fixed connection is equipped with the viewing aperture.

Above-mentioned quick positioner of cylinder special material forging spindle terminal surface centre bore, the screw rod tip on the bolt body is hemisphere.

Above-mentioned quick positioner of cylinder type special material forging spindle terminal surface centre bore, the appearance of V type fixed block is the cuboid that one side was equipped with V type groove, constitutes the contained angle between two faces in V type groove and is 90.

According to the quick positioning device for the central hole of the end face of the cylindrical special material forging ingot, the guide hole and the punch are in clearance fit, and the maximum clearance is smaller than 0.05mm.

The quick positioning device for the end face center hole of the cylindrical special material forging ingot is characterized in that the nut is a full-thread nut, the nut is in the shape of two coaxially arranged pipe bodies with different outer diameters, and one end with a small outer diameter is embedded into the pipe wall of the positioning pipe and fastened.

Above-mentioned quick positioner of cylinder special material forging spindle terminal surface centre bore, the viewing aperture is the through-hole of setting on the positioning tube wall, sets up three altogether, follows positioning tube circumference interval equipartition.

Above-mentioned quick positioner of cylinder special material forging spindle terminal surface centre bore, the middle part of disc is provided with coaxial guide post, the guiding hole sets up on the guide post.

The quick positioning device for the central hole of the end face of the cylindrical special material forging ingot is characterized in that the positioning pipe is provided with a handle.

According to the utility model, the V-shaped fixing block is utilized to position the axis direction of the cylindrical forging ingot in advance, and then three positioning bolts are utilized to position the central hole of the cylindrical forging ingot, so that the positioning speed and precision are improved, the peeling amount of the ingot is reduced, the yield and the processing efficiency are improved, and the labor intensity of staff is reduced.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the construction of the positioning bolt of the present utility model;

fig. 3 is a schematic view of a part of the structure of the present utility model.

The reference numerals in the figures are: 1. the device comprises a positioning tube, 2, a nut, 3, a positioning bolt, 4, a graduated scale, 5, countersunk screws, 6, a handle, 7, a disc, 8, a punch, 9, a V-shaped fixed block, 10, a cylindrical ingot, 11, a guide post, 12, a guide hole, 13, an observation port, 14 and a bolt body.

Detailed Description

Referring to fig. 1 and 3, a quick positioning device for a central hole of an end face of a cylindrical special material forging ingot comprises a V-shaped fixed block 9 and a central positioning mechanism; the center positioning mechanism comprises a positioning tube 1, a nut 2, a punch 8, a disc 7 and a positioning bolt 3; the punch 8 passes through a guide hole 12 on the disc 7 and is perpendicular to the end face of the disc 7; one end of the positioning tube 1 provided with the observation port 13 is vertically fixed on the positioning tube; three identical nuts 2 are uniformly distributed on the circumferential surface of the other end of the positioning tube 1 at intervals, the axis of each nut 2 is vertically intersected with the axis of the positioning tube 1, one positioning bolt 3 is arranged in each nut 2, the positioning bolts 3 penetrate through the nuts 2 and extend into the positioning tube 1, and the three positioning bolts 3 are identical; the V-shaped notch of the V-shaped fixed block 9 faces the axis of the positioning tube 1, and the end face of the V-shaped notch is tightly attached to the end face of the positioning tube 1 in parallel; the positioning tube 1, the guide hole 12 and the punch 8 are coaxial. The use method comprises the steps of clamping a V-shaped groove of a V-shaped fixing block at a position of a cylindrical forging ingot close to the end part, slowly rotating the ingot to enable two surfaces of the ingot and the V-shaped groove to be in contact with each other without gaps, and fixing the ingot to enable the ingot not to roll; one end of a cylindrical ingot is placed into a positioning tube of the central positioning mechanism, the end face of the positioning tube is parallel to and tightly attached to the end face of the V-shaped fixed block, three positioning bolts are in contact with the ingot in rough adjustment, scale marks are observed, when the scale marks are inconsistent, the three positioning bolts are finely adjusted to enable the scale values to be consistent, the three positioning bolts are slowly rotated, when the three positioning bolts are in contact with the ingot, the positioning bolts are locked, a punch is pushed to enable a tip of the positioning bolt to be in contact with the end face of the ingot, the tail of the punch is beaten by a hammer, pits displayed on the end face of the ingot are the central points, and a central hole is drilled at the central points by a drilling machine.

Referring to fig. 2, the positioning bolt 3 comprises a graduated scale 4, countersunk screws 5 and a bolt body 14, three axial grooves are uniformly distributed on a screw rod of the bolt body 14 at intervals, one graduated scale 4 is arranged in each groove, and the starting standard of graduation marks on the three graduated scales 4 is positioned on the same section perpendicular to the axis of the screw rod. Unifying the standard, ensuring the consistency of the values, and setting three convenient reading values.

Referring to fig. 2, the end of the screw on the bolt body 14 is hemispherical. The end of the screw rod is in point contact with the ingot, and the positioning is accurate.

Referring to fig. 1 and 3, the V-shaped fixing block 9 has a cuboid shape with a V-shaped groove on one surface, and the included angle between two surfaces forming the V-shaped groove is 90 °. The two sides of the cylindrical ingot are clamped by the V-shaped grooves, and the axis of the cylindrical ingot is aligned and determined.

Referring to fig. 1, the guide hole 12 and the punch 8 are in clearance fit, and the maximum clearance is smaller than 0.05mm. The punch can slide along the guide hole and can not incline when working.

Referring to fig. 1 and 3, the nut 2 is a full-thread nut, the shape of the nut is two coaxially arranged pipe bodies with different outer diameters, and one end with a small outer diameter is embedded into the pipe wall of the positioning pipe 1 and fastened. The length of the positioning bolt and the nut in a screwing way is long, and the coaxiality is high.

Referring to fig. 1 and 3, the observation openings 13 are through holes formed in the wall of the positioning tube 1, and are three in number and uniformly distributed along the circumferential surface of the positioning tube 1 at intervals. The contact state of the ingot and the positioning bolt is convenient to observe, and the scale value is convenient to observe.

Referring to fig. 3, a coaxial guide post is provided at the middle of the disc 7. The weight of the device is reduced, and the punch is ensured not to deflect in the guide hole.

Referring to fig. 1 and 3, the positioning tube 1 is provided with a handle 6. The positioning device is convenient to take.

Claims

1. The quick positioning device for the central hole of the end face of the cylindrical special material forging ingot is characterized by comprising a V-shaped fixed block (9) and a central positioning mechanism; the center positioning mechanism comprises a positioning tube (1), a nut (2), a punch (8), a disc (7) and a positioning bolt (3); the punch (8) passes through a guide hole (12) on the disc (7) and is perpendicular to the end face of the disc (7); one end of the positioning tube (1) is vertically fixed on the disc (7); three identical nuts (2) are uniformly distributed on the circumferential surface of the other end of the positioning tube (1) at intervals, the axis of each nut (2) is vertically intersected with the axis of the positioning tube (1), one positioning bolt (3) is arranged in each nut (2), the positioning bolts (3) penetrate through the nuts (2) and extend into the positioning tube (1), and the three positioning bolts (3) are identical; the V-shaped notch of the V-shaped fixed block (9) faces to the axis of the positioning tube (1), and the end face of the V-shaped notch is tightly attached to the end face of the positioning tube (1) in parallel; the positioning tube (1), the guide hole (12) and the punch (8) are coaxial.

2. The quick positioning device for the end face center hole of the cylindrical special material forging ingot according to claim 1, wherein the positioning bolt (3) comprises a graduated scale (4), countersunk screws (5) and a bolt body (14), three axial grooves are uniformly distributed on a screw rod of the bolt body (14) at intervals, a graduated scale (4) is arranged in each groove, and starting references of graduation marks on the three graduated scales (4) are positioned on the same section perpendicular to the axis of the screw rod.

3. The quick positioning device for the end face center hole of the cylindrical special material forging ingot according to claim 2, wherein one end of the positioning tube (1) fixedly connected with the disc (7) is provided with an observation port (13).

4. A rapid positioning device for a central hole of a cylindrical special material forging ingot end surface according to claim 3, wherein the end of the screw on the bolt body (14) is hemispherical.

5. The quick positioning device for the end face center hole of the cylindrical special material forging ingot according to claim 4, wherein the V-shaped fixing block (9) is a cuboid with a V-shaped groove on one surface, and the included angle between two surfaces forming the V-shaped groove is 90 degrees.

6. The rapid positioning device for the end face center hole of the cylindrical special material forging ingot according to claim 5, wherein the guide hole (12) and the punch (8) are in clearance fit, and the maximum clearance is smaller than 0.05mm.

7. The quick positioning device for the end face center hole of the cylindrical special material forging ingot according to claim 6 is characterized in that the nut (2) is in the shape of two coaxially arranged pipe bodies with different outer diameters, and one end with the smaller outer diameter is embedded into the pipe wall of the positioning pipe (1) and fastened.

8. The rapid positioning device for the central hole of the end face of the cylindrical special material forging ingot according to claim 7 is characterized in that the observation openings (13) are through holes arranged on the wall of the positioning tube (1), three through holes are arranged in total, and the through holes are uniformly distributed along the circumferential surface of the positioning tube (1) at intervals.

9. The rapid positioning device for the end face center hole of the cylindrical special material forging ingot according to claim 8, wherein a coaxial guide post (11) is arranged in the middle of the disc (7), and the guide hole (12) is arranged on the guide post (11).

10. The rapid positioning device for the central hole of the end face of the cylindrical special material forging ingot according to claim 9 is characterized in that a handle (6) is arranged on the positioning tube (1).