CN217194073U

CN217194073U - Crankshaft hexagonal milling tool clamp

Info

Publication number: CN217194073U
Application number: CN202221172333.9U
Authority: CN
Inventors: 汤军波; 于永兴; 刘雪涛; 李滕; 周文超; 朱英超
Original assignee: Tianrun Industrial Technology Co ltd
Current assignee: Tianrun Industrial Technology Co ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-08-16
Anticipated expiration: 2032-05-16

Abstract

The utility model relates to a crankshaft hexagonal milling tool fixture, which solves the technical problem of high difficulty in the processing and positioning of the existing crankshaft hexagonal structure, which is provided with a clamp body, a positioning device and a clamping device are arranged on the clamp body, the positioning device and the clamping device are connected with the clamp body through threads, and a dividing device is also arranged, the indexing device is provided with a positioning U-shaped part, a positioning pin and a large-head positioning sleeve, the positioning U-shaped part is connected with the clamp body through a thread, the big head positioning sleeve is provided with a groove for clamping a crankshaft, the crankshaft is connected with the big head positioning sleeve through a threaded fastener, the big-end positioning sleeve is provided with six positioning through holes which are uniformly distributed along the circle center of the crankshaft main shaft, the included angle between the circle center of each positioning through hole and the circle center of the crankshaft main shaft is 60 degrees, one end of each positioning pin is connected with the big-end positioning sleeve, and the other end of each positioning pin is connected with the U-shaped groove. The utility model discloses can extensively be in bent axle hexagonal milling process location.

Description

Hexagonal frock clamp is milled to bent axle

Technical Field

The utility model relates to the field of machinary, especially, relate to a bent axle mills hexagonal frock clamp.

Background

The crankshaft is one of the most important parts of the engine, and the performance of the crankshaft directly influences the reliability and the service life of the engine. Along with the continuous improvement of the strengthening index of the engine and the continuous emergence of a high-power engine, the working condition of the crankshaft is worse. The crankshaft undergoes bending and torsional deformations under the action of the periodically varying reciprocating and rotating inertia forces. The angle requirement of the crankshaft hexagonal structure is strict, the form and position tolerance requirement is strict, and the processing difficulty is large. The hexagonal milling process is a key process which influences the size angle of a hexagonal structure finished product in the machining process of the crankshaft, so that the required hexagonal milling tool also needs to meet the requirement on machining precision.

Disclosure of Invention

The utility model discloses a solve the big technical problem of the current bent axle hexagonal structure processing location degree of difficulty, provide an easy operation, the reliable bent axle of location mills hexagonal frock clamp.

The utility model provides a bent axle mills hexagonal frock clamp, it is equipped with the anchor clamps body, be equipped with positioner, clamping device on the anchor clamps body, positioner with clamping device pass through the screw thread with the anchor clamps body coupling still is equipped with indexing means, indexing means is equipped with location U type, locating pin and major part position sleeve, the location U type pass through the screw thread with the anchor clamps body coupling, major part position sleeve is equipped with the recess of clamping bent axle, the bent axle passes through threaded fastener with the major part position sleeve and is connected, major part position sleeve is equipped with six positioning hole along bent axle main shaft centre of a circle evenly distributed, the positioning hole centre of a circle is 60 to bent axle main shaft centre of a circle line contained angle, and the major part position sleeve is connected to locating pin one end, and the other end is connected the recess of location U type.

Preferably, clamping device is equipped with clamp plate, clamp bolt, both ends threaded support column, compression spring and hexagon nut, the clamp plate with be equipped with between the anchor clamps body compression spring, the compression spring suit is in the support column outer lane, clamp plate one end is arranged in the clamp bolt top, clamp plate and clamp bolt in close contact with, clamp plate, compression spring and clamp bolt constitute the lever that is used for compressing tightly.

Preferably, the positioning device is two V-shaped blocks, wherein an axial positioning block is further mounted on the V-shaped block far away from the indexing device.

The utility model discloses beneficial effect:

the utility model discloses be equipped with indexing means, every 60 fixed positions once when letting the bent axle rotate, the hexagonal structure of convenient processing bent axle. The utility model discloses an axial positioning piece, two V type pieces and clamp plate are fixed a position and are compressed tightly, easy operation, and the location is reliable, and the commonality is strong, practice thrift manufacturing cost, improves production efficiency.

Drawings

FIG. 1 is a schematic view of the forward cutting structure of the present invention;

FIG. 2 is a schematic view of the D-direction structure of FIG. 1;

fig. 3 is a schematic view of the H-direction structure of fig. 1.

Description of the symbols of the drawings:

1. pressing a plate; 2. a support column; 3. a hold-down bolt; 4. a hexagonal nut; 5. a clamp body; 6. a V-shaped block; 7. a positioning column; 8. axial positioning blocks; 9. a compression spring; 10. a large head positioning sleeve; 11. positioning pins; 12. positioning the U shape; 13. a bushing.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, so that those skilled in the art can implement the present invention.

Example (b):

as shown in fig. 1-3, the utility model is provided with a clamp body 5, and the clamp body 5 is provided with a positioning device, a clamping device and a dividing device. Wherein positioner is equipped with the reference column 7 with anchor clamps body 5 threaded connection, still is equipped with two V type pieces 6 that pass through threaded fastener with anchor clamps body 5 and is connected, still installs axial positioning piece 8 on one of them V type piece 6, and axial positioning piece 8 passes through threaded connection with V type piece 6, and bush 13 is connected with reference column 7 for install reference column 7 on anchor clamps body 5.

Clamping device is equipped with clamp plate 1, clamp bolt 3, both ends area screwed support column 2, compression spring 9 and hexagon nut 4, support column 2 and clamp bolt 3 pass through screw thread and the 5 fixed connection of anchor clamps body, still be equipped with hexagon nut 4 that is used for adjusting its self height on support column 2 and the clamp bolt 3, clamp plate 1 center is equipped with the through-hole, the through-hole cup joints support column 2, support column 2 upper end is equipped with the nut of restriction clamp plate 1 displacement, still be equipped with compression spring 9 between clamp plate 1 and the anchor clamps body 5, clamp plate 3 top is arranged in to 1 one end, clamp plate 1 and clamp bolt 3 in close contact with, clamp plate 1, compression spring 9 constitutes a lever with clamp bolt 3, through the height of adjusting clamp bolt 3, realize adjusting at 1 high-phase opposition of clamp plate with clamp bolt 3 relative position, thereby realize reliably tightening the quick of bent axle.

The indexing device is provided with a positioning U-shaped 12, a positioning pin 11 and a large-head positioning sleeve 10, the positioning U-shaped 12 is fixedly connected with the clamp body 5 through threads, and the positioning pin 11 is arranged in a U-shaped groove of the positioning U-shaped 12; the big end positioning sleeve 10 is a cylinder, a groove for installing the big end of the crankshaft is formed in the big end positioning sleeve 10 along the thickness direction, thread through holes extending to the circumference of the big end positioning sleeve 10 are formed in two sides of the groove and used for fixing the big end positioning sleeve 10 and the crankshaft through thread fasteners, 6 positioning through holes are uniformly formed in the flat end face of the big end positioning sleeve 10 on the same circle along the circle center, the included angle between the circle center of each adjacent through hole and the circle center of the big end positioning sleeve 10 is 60 degrees, the big end positioning sleeve 10 is fixedly connected with the big end of the crankshaft through the through holes and fixed to the positioning pin 11, one end of the positioning pin 11 is connected with the big end positioning sleeve 10, the positioning pin 11 is fixed in the groove of the positioning U-shaped 12 in the middle, and milling of the crankshaft is completed.

The utility model discloses when using, hoist and mount the bent axle main shaft neck on V type piece 6, support bent axle connecting rod journal with reference column 7, install stub positioning sleeve 10 on the bent axle is big, with 11 adjustment stub positioning sleeve 10 angles of locating pin, with bent axle main shaft neck side axial positioning, axial position is confirmed to axial positioning piece 8, presss from both sides tight bent axle through clamping device's lever. When the hexagonal is machined, the position of the positioning pin 11 in the positioning through hole of the large-head positioning sleeve 10 is sequentially adjusted, the crankshaft fixedly rotates for 60 degrees each time, and a plane is milled until the crankshaft rotates for 360 degrees, and the hexagonal machining is finished.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, as various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the scope defined by the claims of the present invention shall be within the protection scope of the present invention.

Claims

1. The utility model provides a bent axle mills hexagonal frock clamp, its is equipped with the anchor clamps body, be equipped with positioner, clamping device on the anchor clamps body, positioner with clamping device pass through the screw thread with the anchor clamps body coupling, characterized by still is equipped with indexing device, indexing device is equipped with location U type, locating pin and major part position sleeve, the location U type pass through the screw thread with the anchor clamps body coupling, major part position sleeve is equipped with the recess of clamping bent axle, bent axle and major part position sleeve pass through threaded fastener and are connected, major part position sleeve is equipped with six positioning hole along bent axle main shaft centre of a circle evenly distributed, the positioning hole centre of a circle is 60 to bent axle main shaft centre of a circle line contained angle, the major part position sleeve is connected to locating pin one end, and the other end is connected the recess of location U type.

2. The crankshaft milling hexagonal tooling clamp according to claim 1, wherein the clamping device is provided with a pressing plate, a compression bolt, a support column with threads at two ends, a compression spring and a hexagon nut, the compression spring is arranged between the pressing plate and the clamp body, the compression spring is sleeved on the outer ring of the support column, one end of the pressing plate is arranged at the top of the compression bolt, the pressing plate is in close contact with the compression bolt, and the pressing plate, the compression spring and the compression bolt form a lever for pressing.

3. The crankshaft milling hexagonal tooling fixture of claim 1, wherein the positioning device is two V-shaped blocks, wherein an axial positioning block is further mounted on the V-shaped block away from the indexing device.