CN216542260U

CN216542260U - Simple dividing head

Info

Publication number: CN216542260U
Application number: CN202122853276.2U
Authority: CN
Inventors: 刘冬霞; 刘德军; 徐光彬
Original assignee: Shandong Zheng Zhou Machinery Co ltd
Current assignee: Shandong Zheng Zhou Machinery Co ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-05-17
Anticipated expiration: 2031-11-12

Abstract

A simple dividing head comprises a base, a dividing rotating shaft, a jacket, a pressing cap, a dividing pin, a locking screw, a check ring, a rocker arm, a handle, a positioning key and the like; the indexing rotating shaft is arranged on the base and can rotate; the jacket, the pressing cap, the check ring and the rocker arm are arranged on the indexing rotating shaft; fixing the base on an equipment workbench; the workpiece is arranged in the clamping sleeve, and the clamping and loosening of the workpiece can be realized by screwing and loosening the pressing cap; indexing and fixing the indexing rotating shaft by using a positioning pin and a locking screw to complete indexing processing of the workpiece; the utility model has simple structure, simple operation, safety, high efficiency and low processing and using cost, and is an ideal simple index head.

Description

Simple dividing head

Technical Field

The utility model belongs to the technical field of machining indexing devices, and particularly relates to a simple indexing head.

Background

It is well known that in the field of machining, indexing jigs are often used to machine multiple planes or multiple holes or multiple key slots on a workpiece; the index jig generally used at present is an index jig such as an index head; although the indexing clamps can meet the machining requirements, the indexing clamps are expensive, large in investment, difficult to produce and machine, high in cost, labor-consuming to install and debug, tedious in indexing and low in machining efficiency, and are particularly not suitable for some workpieces with few machining batches.

In view of the above drawbacks, as a technician in the industry, how to design a simple indexing head solves the technical problems of difficult processing, high use cost and low processing efficiency of the existing indexing fixture.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides the simple dividing head, a workpiece is clamped and fixed on a dividing rotating shaft of the simple dividing head, the workpiece is divided through the dividing rotating shaft, and a plurality of planes, a plurality of holes or a plurality of key grooves are machined on the workpiece.

In order to achieve the technical purpose, the utility model adopts the following technical scheme: a simple dividing head is composed of a base, a dividing rotating shaft, a jacket, a pressing cap, a dividing pin, a locking screw, a check ring, a rocker arm, a handle and a positioning key; the jacket, the pressing cap, the check ring and the rocker arm are respectively arranged on the indexing rotating shaft; the indexing rotating shaft is arranged on the base and can rotate; the indexing rotating shaft is indexed and fixed by a positioning pin and a locking screw, so that indexing of the workpiece is realized.

The base is an iron casting, the lower part of the base is a hexagonal body, the lower plane of the base is provided with longitudinal and transverse grooves, and the longitudinal and transverse grooves are communicated with two end faces and two side faces of the hexagonal body at the lower part of the base; the longitudinal groove and the transverse groove are provided with a plurality of threaded holes; the upper part of the base is a transverse cylinder; the hexagonal body at the lower part of the base is connected with the transverse cylinder at the upper part of the base, the central part of the transverse cylinder is provided with an axial secondary step through hole, the axial secondary step through hole is communicated with two end faces of the transverse cylinder, and the large step hole is arranged in front; the front end of the transverse cylinder is provided with a sector boss arc protruding upwards, the sector boss arc is coaxial with the transverse cylinder, the arc surface of the sector boss arc is provided with a plurality of radial holes, and the radial holes are communicated with the large step holes of the secondary step holes of the transverse cylinder; the rear end of the transverse cylinder is provided with a radial threaded hole, and the radial threaded hole is communicated with a small step hole of a secondary step hole of the transverse cylinder.

The indexing rotating shaft is a four-stage step cylinder, an axial taper hole and a through hole are formed in the center of the front end of the indexing rotating shaft, the axial taper hole is arranged in the front, and the large end of the axial taper hole is arranged on the small excircle end face of the front end of the indexing rotating shaft; the small excircle at the front end is provided with an external thread; the middle large excircle and the rear-end second-stage excircle are cylinders; the peripheral surface of the middle large excircle is provided with a plurality of radial cone counter bores.

The clamp sleeve is a cone frustum body, an outer annular groove is formed in the cone frustum body, an axial through hole is formed in the center of the cone frustum body, and a plurality of radial blind grooves communicated with the axial through hole are uniformly formed in the cone frustum body, so that the clamp sleeve is characterized in that: the jacket can be contracted and expanded.

The pressing cap is a cylinder, the outer circular surface of the pressing cap is provided with a plurality of axial blind grooves, and the axial blind grooves are communicated with the front end face of the pressing cap; the center of the pressing cap is provided with an inner conical surface, an eccentric inner circle and an inner threaded hole; the small end of the inner conical surface is arranged on the front end surface of the pressing cap, the rear end of the inner conical surface is an eccentric inner circle, and the rear end of the eccentric inner circle is an internal threaded hole; the eccentric inner circle is not concentric with the inner conical surface, the inner threaded hole and the large outer circle, and has a certain eccentric amount.

The index pin is a secondary cylinder, and the front end of the small excircle is provided with an outer conical surface; and (5) embossing the surface of the large excircle.

The locking screw is a secondary cylinder, and an external thread is arranged on a small outer circle; and (5) embossing the surface of the large excircle.

The retainer ring is a hollow cylinder, and a plurality of radial threaded holes communicated with the middle hole are formed in the outer circumferential surface of the retainer ring.

The positioning key is a hexagonal body with a secondary step hole, and the secondary step hole is positioned in the middle of the bottom surface of the positioning key.

The rocker arm is an iron casting, the bottom end of the rocker arm is provided with a large arc-shaped surface, the upper end of the rocker arm is provided with a small arc-shaped surface, the center of the large arc-shaped surface is provided with an axial through hole, and the arc surface of the large arc-shaped surface is provided with a plurality of radial threaded holes communicated with the axial through hole; the center of the small cambered surface is provided with an axial threaded hole.

The handle is a secondary cylinder with external threads.

The utility model has the beneficial effects that: according to the utility model, through the arrangement, the indexing rotating shaft is arranged on the base; the jacket, the pressing cap, the retainer ring and the rocker arm are respectively arranged on the indexing rotating shaft; the indexing rotating shaft is indexed and fixed by an indexing pin and a locking screw; the indexing requirements of different angles of the workpiece are met by the rotation of the indexing rotating shaft; moreover, the clamping device is provided with a plurality of clamping sleeves with different apertures, which are matched for use, so that the clamping range of workpieces is enlarged; the utility model has simple structure, simple operation, safety, high efficiency and low processing and using cost, and is an ideal simple indexing device.

Drawings

FIG. 1 is a perspective exploded view of the present invention

FIG. 2 is a fully-sectioned schematic view of the assembled invention

FIG. 3 is a left view of the assembled invention

FIG. 4 is a sectional view showing the base, the index rotary shaft and the index pin of the present invention assembled together

In the attached drawing, 1, a base, 11, a front end of the base, 2, an indexing rotating shaft, 3, a jacket, 4, a pressing cap, 41, a front end surface of the pressing cap, 5, an indexing pin, 6, a locking screw, 7, a retainer ring, 8, a rocker arm, 9, a handle, 10, a positioning key, 12 and a workpiece are arranged

Detailed Description

Referring to fig. 1, 2 and 3, a simple indexing device is shown, which comprises a base 1, wherein the base 1 is made of iron casting, the lower part of the base 1 is a hexagonal body, and the base has the length of 150mm, the width of 120mm and the height of 16 mm; the middle part of the lower plane of the base 1 is respectively provided with a longitudinal groove and a transverse groove with the width of 16mm and the depth of 6mm, and the longitudinal groove and the transverse groove are communicated with two end surfaces and two side surfaces of a hexagonal body at the lower end of the base 1; threaded holes with the depth of M6 mm are respectively machined at the intersection points of the central lines in the longitudinal grooves and the transverse grooves and the positions which are 10mm away from the four end faces; the upper part of the base 1 is a transverse cylinder with the diameter of 100mm and the length of 150 mm; the hexagonal body is connected with a transverse cylinder, the front end surface and the rear end surface of the hexagonal body are aligned, the distance from the lower plane of the base 1 to the central line of the transverse cylinder is 80mm, the middle part of the transverse cylinder is provided with a secondary step through hole with the diameter of 91mm and the diameter of 45mm, the diameter of 91mm and a large step hole with the depth of 15mm are arranged on the front end 11 of the base, the upper part of the transverse cylinder of the front end 11 of the base is provided with 150 degrees, a sector boss arc with the radius of 65mm is concentric with the transverse cylinder, the axial central position of the sector boss arc is provided with 11 radial holes with the diameter of 6mm, the degree of the interval is 9 degrees, and the 11 radial holes with the diameter of 6mm are respectively communicated with the diameter of the front end of the transverse cylinder and the large step hole with the depth of 15 mm; a radial threaded hole M12 is machined at the rear end of the transverse cylinder, and the radial threaded hole M12 is communicated with a small step hole with the diameter of 45mm on the transverse cylinder.

The indexing rotating shaft 2 is a four-stage step cylinder with the diameter of 50mm, the length of 25mm, the diameter of 90mm, the length of 15mm, the diameter of 45mm, the length of 160mm, the diameter of 40mm and the length of 10 mm; the diameter of the front end of the tool is 50mm, the outer circle with the length of 25mm is provided with M50X1.5 external threads, and the length of the external threads is 20 mm; an axial taper hole and a through hole with the diameter of 25mm are machined in the middle of an excircle with the diameter of 50mm at the front end of the indexing rotating shaft, the axial taper hole is arranged in front, and the large end of the axial taper hole is arranged on the end face of the excircle with the diameter of 50mm at the front end of the indexing rotating shaft; the diameter of the large end of the axial taper hole is 40mm, the diameter of the small end is 25mm, and the taper is 16 degrees; the peripheral surface of a large excircle in the middle of 90mm diameter and 15mm length is uniformly provided with 10 radial cone counter bores with 6mm diameter, 3 degrees taper and 12mm depth.

The jacket 3 is a frustum cone; the big diameter of the circular truncated cone body is 40mm, the length of the circular truncated cone body is 45mm, the taper of the circular truncated cone body is 16 degrees, the big end of the circular truncated cone body is provided with a 60-degree outer conical surface, an outer annular groove with the width of 5.5mm and the depth of 3mm is processed on the circular truncated cone body, an axial through hole with the diameter of 24mm is processed at the center of the circular truncated cone body, 8 blind grooves communicated with a middle hole with the diameter of 24mm are evenly processed on the peripheral surface of the circular truncated cone body, the width of each blind groove is 1.5mm, the length of each blind groove is 40mm, and the blind grooves are communicated with the big end surface of the circular truncated cone body; the purpose is to enable the jacket 3 to contract and expand to clamp or loosen a workpiece.

A pressing cap 4 which is a cylinder with the diameter of 64mm and the length of 25 mm; the outer circumferential surface of diameter 64mm is evenly provided with 6 axial grooves with width of 6mm, depth of 3mm and length of 20mm, the axial grooves are communicated with the front end face 41 of the pressing cap, the center of the pressing cap is sequentially provided with a 60-degree inner conical surface, an inner eccentric circle with diameter of 40mm and M50X1.5 internal threads, the small end of the 60-degree inner conical surface is positioned on the front end face 41 of the pressing cap, the rear end of the 60-degree inner conical surface is provided with an inner eccentric circle with diameter of 40mm, the rear end of the inner eccentric circle with diameter of 40mm is provided with a threaded hole of M50X1.5, the inner eccentric circle with diameter of 40mm, the 60-degree inner conical surface, the M50X1.5 internal threads and the outer circle with diameter of 64mm have 1.5mm eccentric amount, the purpose is that the inner eccentric circle with diameter of 40mm is clamped into the outer annular groove of the jacket 3, and when the pressing cap 4 is loosened, the jacket 3 can be moved out.

The indexing pin 5 is a secondary cylinder with the diameter of 15mm, the length of 10mm, the diameter of 6mm and the length of 35 mm; processing an external conical surface with 3 degrees of taper and 10mm length at the front end with the diameter of 6mm and the length of 35 mm; embossing was performed on a large outer circular surface with a diameter of 15 mm.

The locking screw 6 is made of copper H62, is a secondary cylinder with the diameter of 25mm, the length of 15mm, the diameter of 12mm and the length of 15mm, is provided with an M12 external thread on a small excircle with the diameter of 12mm, and is embossed on the surface of a large excircle with the diameter of 25 mm.

The retainer ring 7 is a hollow cylinder with the outer diameter of 95mm, the inner diameter of 45mm and the thickness of 10 mm; 3 radial threaded holes which penetrate through the M6 holes with the inner diameter of 45mm are uniformly distributed on the peripheral surface with the outer diameter of 95 mm.

The rocker arm 8 is an iron casting, the bottom end of the rocker arm 8 is provided with an arc-shaped surface with the radius of 27mm, the upper end of the rocker arm is provided with an arc-shaped surface with the radius of 10mm, an axial through hole with the diameter of 40mm is processed at the center of the arc-shaped surface with the radius of 27mm, and 3M 6 radial threaded holes which are communicated with the axial through hole with the diameter of 40mm are uniformly distributed on the arc-shaped surface with the radius of 27 mm; 1M 10 axial threaded holes are processed at the center of an arc surface with the radius of 10 mm; the distance between the two circle centers of the arc-shaped surface with the radius of 27mm and the arc-shaped surface with the radius of 10mm is 50 mm.

The handle 9 is a standard piece of hard plastic products, and the front end of the handle is provided with M10 connecting threads.

The positioning key 10 is a hexagonal body with the length of 20mm, the width of 16mm and the height of 12mm, and a through hole with the diameter of 10mm, the depth of 6.5mm and the diameter of 6.5mm is processed at the middle part of the bottom surface of the positioning key.

According to the utility model, through the arrangement, the indexing rotating shaft 2 is arranged on the base 1; the jacket 3, the pressure cap 4, the retainer ring 7 and the rocker arm 8 are arranged on the indexing rotating shaft 2; the indexing rotating shaft 2 is indexed and fixed by an indexing pin 6 and a locking screw 7; the indexing requirements of different angles of the workpiece 12 are met; according to the utility model, indexing at any angle can be realized through 11 radial holes with 9-degree intervals on the base 1 and 36 conical counter bores with 10-degree intervals on the indexing rotating shaft 2; for example: 32 degree graduation, rotate 3 pitch holes of graduation pivot 2 anticlockwise soon earlier, promptly: 30 degrees, move 2 pitch holes clockwise index pin 5 on base 1 again, correspond to insert in the 5 th awl counter bore of index pivot 2, promptly: the workpiece 12 is rotated 32 degrees in total; moreover, the utility model is provided with a plurality of jackets 3 with different apertures, which are used together, thereby enlarging the clamping scope of the workpiece 12; the utility model has simple structure, simple operation, safety, high efficiency and low processing and using cost, and is an ideal simple indexing device.

Claims

1. A simple dividing head is characterized in that: the device comprises a base, wherein the lower part of the base is a hexagonal body, and the upper part of the base is a transverse cylinder; the hexagonal body at the lower part of the base is connected with the transverse cylinder at the upper part of the base, the transverse cylinder at the upper part of the base is provided with a fan-shaped boss arc, and the cambered surface of the fan-shaped boss arc is provided with 11 radial holes; the base is provided with an indexing rotating shaft, an indexing pin and a locking screw, and the indexing rotating shaft can rotate on the base; the indexing rotating shaft is provided with an axial taper hole and 36 radial taper counter bores; the jacket, the pressing cap, the check ring and the rocker arm are respectively arranged on the indexing rotating shaft; the indexing rotary shaft can be indexed and fixed by the indexing pin and the locking screw.

2. A simple index head according to claim 1 wherein: the sector boss arcs on the transverse cylinder and the transverse cylinder on the base are coaxial.

3. A simple index head according to claim 1 wherein: the base is provided with 11 radial holes evenly spaced by 9 degrees.

4. A simple index head according to claim 1 wherein: the indexing rotating shaft is provided with 36 radial cone counter bores which are evenly spaced by 10 degrees.

5. A simple index head according to claim 1 wherein: the diameters of the 11 radial holes on the base are equal to the major diameters of the 36 radial cone counter bores on the indexing rotating shaft.

6. A simple index head according to claim 1 wherein: the taper of the 36 radial cone counter bores on the indexing rotating shaft is the same as that of the conical surface of the indexing pin; and the depth of the conical counter bore on the indexing rotating shaft is greater than the length of the conical surface of the indexing pin.

7. A simple index head according to claim 1 wherein: the taper of the axial taper hole on the indexing rotating shaft is the same as that of the outer taper surface of the jacket cone, and the major diameter size of the axial taper hole on the indexing rotating shaft is smaller than or equal to that of the jacket cone.