阅读说明：本技术 一种圆形坯料抱紧装置 (Circular blank holding device ) 是由 蒋红涛 朱剑 于 2020-06-18 设计创作，主要内容包括：本发明涉及一种圆形坯料抱紧装置,它包括前后两个基座(1),所述基座(1)上左右对称设置有两个导套(2),所述导套(2)内插装有曲臂(3),每个导套(2)下方均设置有卷筒(4),所述卷筒(4)上绕置有钢丝绳(5),所述曲臂(3)下端与对应卷筒(4)上的钢丝绳(5)相连接。本发明一种圆形坯料抱紧装置,它能够对圆形坯料进行抱紧定位,防止坯料在加工过程中出现抬头现象,不会影响圆形坯料磨削时自转和砂轮磨削坯料的正常进行。(The invention relates to a circular blank holding device which comprises a front base (1) and a rear base (1), wherein two guide sleeves (2) are symmetrically arranged on the left and the right of the bases (1), crank arms (3) are inserted in the guide sleeves (2), a winding drum (4) is arranged below each guide sleeve (2), steel wire ropes (5) are wound on the winding drums (4), and the lower ends of the crank arms (3) are connected with the steel wire ropes (5) on the corresponding winding drums (4). The circular blank holding device can hold and position a circular blank, prevents the blank from raising in the processing process, and does not influence the normal operation of autorotation and grinding of the blank by a grinding wheel during grinding of the circular blank.)

1. The utility model provides a device is held tightly to circular blank which characterized in that: it includes two front and back bases (1), bilateral symmetry is provided with two guide pin bushing (2) on base (1), guide pin bushing (2) interpolation is equipped with crank arm (3), and every guide pin bushing (2) below all is provided with reel (4), the winding has wire rope (5) on reel (4), crank arm (3) lower extreme is connected with wire rope (5) on corresponding reel (4).

2. A circular blank holding device according to claim 1, wherein: the left guide sleeve and the right guide sleeve (2) are arranged at a certain included angle.

3. A circular blank holding device according to claim 2, wherein: the included angle between the left guide sleeve and the right guide sleeve (2) is 40-80 degrees.

4. A circular blank holding device according to claim 3, wherein: the included angle between the left guide sleeve (2) and the right guide sleeve (2) is 60 degrees.

5. A circular blank holding device according to claim 1, wherein: and the upper end of the crank arm (3) is provided with a roller (6).

6. A circular blank holding device according to claim 1, wherein: the winding drum (4) is driven by a driving mechanism.

7. A circular blank holding device according to claim 1, wherein: crank arm (3) are including down guide section (31) and last section (32) of hugging closely, guide section (31) and last section (32) of hugging closely down are certain contained angle and arrange.

8. A circular blank holding device according to claim 1, wherein: and a return spring (8) is arranged between the crank arm (3) and the guide sleeve (2).

9. A circular blank holding device according to claim 8, wherein: the inner lower part of the guide sleeve (2) is provided with a first check ring (9), the upper part of the crank arm (3) is provided with a second check ring (10), and the reset spring (8) is arranged between the first check ring (9) and the second check ring (10).

10. A circular blank holding device according to claim 1, wherein: the winding drums (4) are provided with synchronous gears (11), and the synchronous gears (11) of the left winding drum and the right winding drum (4) are meshed with each other.

Technical Field

The invention relates to a circular blank (such as a roller) holding device, which is mainly applied to the surface of a blank in the roller manufacturing industry to remove defects and basic allowance such as flash, scar and ladle sand, and belongs to the technical field of metallurgical machinery.

Background

The roller blank is formed by a casting method, hard metal sand inclusion is formed on the surface of the roller blank, the sand inclusion needs to be removed before finish machining and grinding, a rough turning method is usually adopted for removing the sand inclusion, and the layer contains molding sand, so that a turning tool is easy to damage and the working efficiency is low. The existing heavy-load rough grinding process is generally adopted, and the efficiency can be improved by at least 2 times of the original yield.

The size of the roller is various, the size of the casting blank is correspondingly large, and the self weight of the roller is different from hundreds of kilograms to tens of tons. For small-size blanks, when load is applied to the position of a shaft neck for grinding, the self weight of the small-size blanks is not enough to overcome the tilting force generated by the grinding downward pressure, and the non-grinding end can be warped, so that the normal production is influenced.

Disclosure of Invention

The invention aims to solve the technical problem of providing a circular blank holding device aiming at the prior art, which can hold and position a circular blank, prevent the blank from raising in the processing process and cannot influence the rotation of the circular blank during grinding and the normal operation of grinding the blank by a grinding wheel.

The technical scheme adopted by the invention for solving the problems is as follows: the utility model provides a circular blank cohesion device, it includes two bases in front and back, bilateral symmetry is provided with two guide pin bushings on the base, the guide pin bushing interpolation is equipped with the crank arm, and every guide pin bushing below all is provided with the reel, around putting wire rope on the reel, the crank arm lower extreme is connected with the wire rope that corresponds on the reel.

Optionally, the left guide sleeve and the right guide sleeve are arranged at a certain included angle.

Optionally, the included angle between the left guide sleeve and the right guide sleeve is 40-80 degrees.

Optionally, the included angle between the left guide sleeve and the right guide sleeve is 60 degrees.

Optionally, the upper end of the crank arm is provided with a roller.

Optionally, the drum is driven by a drive mechanism.

Optionally, the crank arm comprises a lower guide section and an upper holding section, and the lower guide section and the upper holding section are arranged at a certain included angle.

Optionally, a return spring is arranged between the crank arm and the guide sleeve.

Optionally, a first retaining ring is arranged at the inner lower part of the guide sleeve, a second retaining ring is arranged at the upper part of the crank arm, and the return spring is arranged between the first retaining ring and the second retaining ring.

Optionally, the winding drum is provided with a synchronizing gear, and the synchronizing gears of the left winding drum and the right winding drum are meshed with each other.

Compared with the prior art, the invention has the advantages that:

1. the invention can tightly hold and position the round blank, prevent the blank from tilting in the processing process, and can not influence the normal operation of autorotation and grinding of the blank by the grinding wheel during grinding of the round blank;

2. the invention can solve the problem of holding and positioning of different circular blanks with various specifications and has strong universality;

3. the holding positions of the invention are positioned at 60 degrees on the left and right sides of the top of the center of the blank, and the alignment grinding of the grinding head on the top of the blank is not influenced.

Drawings

Fig. 1 is a schematic structural diagram of a circular blank holding device according to the present invention.

Fig. 2 is a schematic view of the working state of the circular blank holding device of the invention.

Wherein:

base 1

Guide sleeve 2

Crank arm 3

Reel 4

Wire rope 5

Roller 6

Open slot 7

Return spring 8

First retainer ring 9

Second retainer ring 10

Synchronizing gear 11

A blank 12.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

Referring to fig. 1 and 2, the circular blank holding device comprises a front base 1 and a rear base 1, wherein the front base 1 and the rear base 1 are both arranged on a grinding trolley, two guide sleeves 2 are symmetrically arranged on the left and the right of the bases 1, a crank arm 3 is inserted into each guide sleeve 2, a winding drum 4 is arranged below each guide sleeve 2, a steel wire rope 5 is wound on each winding drum 4, the lower end of each crank arm 3 is connected with the steel wire rope 5 on the corresponding winding drum 4, and the winding drum can pull the crank arm downwards through winding the steel wire rope, so that the crank arm slides downwards in the guide sleeves, and finally the left crank arm and the right crank arm hold a blank tightly;

the left guide sleeve 2 and the right guide sleeve 2 are arranged at a certain included angle, so that the crank arms in the left guide sleeve 2 and the right guide sleeve 2 are also arranged at a certain included angle, the area between the left crank arm and the right crank arm is exposed, and the alignment grinding of the grinding head on the top of the blank cannot be influenced;

optionally, the included angle between the left guide sleeve 2 and the right guide sleeve 2 is 40-80 degrees;

preferably, the included angle between the left guide sleeve 2 and the right guide sleeve 2 is 60 degrees;

the crank arm 3 comprises a lower guide section 31 and an upper holding section 32, and the lower guide section 31 and the upper holding section 32 are arranged at a certain included angle;

the upper end of the crank arm 3 is provided with the roller 6, when the crank arm tightly holds the blank, the roller is contacted with the blank, the rotation of the round blank cannot be influenced in the grinding process, and the grinding process cannot influence the surface quality of the blank due to the rolling friction between the roller and the blank;

the upper end of the crank arm 3 is provided with a slot 7, and the roller 6 is arranged in the slot 7 and is fixed through a pin shaft, a pressing plate and a bolt;

the winding drum 4 is driven by a driving mechanism, and the steel wire rope can be wound or unwound by the winding drum through the driving mechanism;

the driving mechanism adopts a speed reducer;

preferably, the driving mechanism adopts a hydraulic speed reducer;

a return spring 8 is arranged between the crank arm 3 and the guide sleeve 2, after the blank is polished, the driving mechanism loosens the winding drum, the crank arm 3 restores the original position under the action of the return spring 8, the crank arm loosens the blank at the moment, and the blank can be lifted;

a first retainer ring 9 is arranged at the inner lower part of the guide sleeve 2, a second retainer ring 10 is arranged at the upper part of the crank arm 3, and the return spring 8 is arranged between the first retainer ring 9 and the second retainer ring 10;

the winding drums 4 are provided with synchronizing gears 11, and the synchronizing gears 11 of the left winding drum 4 and the right winding drum 4 are meshed with each other, so that the action consistency of the left crank arm and the right crank arm can be guaranteed.

In addition, the present invention also includes other embodiments, and any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.