CN102211313B

CN102211313B - Micrometer caliper grinder with accurately adjustable size

Info

Publication number: CN102211313B
Application number: CN 201110037581
Authority: CN
Inventors: 王国友; 李书福; 杨健; 安聪慧
Original assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely Luoyou Engine Co Ltd; Jinan Geely Auto Parts Co Ltd; Hunan Luoyou Engine Parts Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely Power Train Co Ltd; Hunan Luoyou Engine Parts Co Ltd
Priority date: 2011-02-14
Filing date: 2011-02-14
Publication date: 2013-06-19
Anticipated expiration: 2031-02-14
Also published as: CN102211313A

Abstract

The invention discloses a micrometer caliper grinder with an accurately adjustable size, which overcomes the defect of low complicated transmission accuracy in the prior art, and provides a grinder which has a controllable size and low cost. The grinder comprises a grinder matrix, wherein the lower end face of the grinder matrix serves as a grinding surface; a guide surface is arranged in the inner cavity of the grinder matrix; a plurality of limiting holes are uniformly distributed on the side face at the upper end of the grinder matrix; the upper end face of the grinder matrix serves as an adjustment bearing surface; an adjustment ring is sleeved on the upper part of the grinder matrix; an internal thread is formed inside the adjustment ring; unthreaded holes corresponding to the limiting holes are uniformly distributed on the outer circular surface of the adjustment ring; the upper bottom of the inner side of the adjustment ring is pressed against the adjustment bearing surface; a grinding block is inserted into the adjustment ring and consists of a grinding head, an external thread and a guide section; a guide groove is formed on the side face of the guide section; the external thread is matched with the internal thread of the adjustment ring; the guide section is slidably matched with the guide surface; a guide locking screw is matched with a screw hole which is formed on the side face of the grinder matrix; the front end of the guide locking screw is matched with the guide groove of the guide section; and a plurality of limiting pins are used for locking the unthreaded holes on the outer circular surface of the adjustment ring and the limiting holes. The grinder has a simple structure and high accuracy and is convenient to operate; and the size of the grinder can be compensated, so that resources are saved.

Description

But the micrometer mill of accurate adjustment size

Technical field

The invention belongs to the metering outfit technical field, be specifically related to the specific purpose tool that a kind of outside micrometer measurement face grinds.

Background technology

As metering outfit, outside micrometer must regularly be examined and determine and repair, and measures the flatness of face and the depth of parallelism between relative measurement face as outside micrometer, when it is defective, need to repair with the method for grinding.And the conventional method of the miking face of grinding is with special-purpose micrometer mill.The special-purpose mill of general micrometer is cylinder iron made, and four one group, working size between two working faces of each part in same group of mill, difference in size is 1/4 of micrometer micrometric screw pitch 0.5mm, i.e. 0.125mm from small to large.Such as, a measurement category is the outside micrometer of 0～25mm, during its two measurements face depth of parallelism of reconditioning, one group totally four of mills used, working size is respectively 24.00mm, 24.12mm, 24.24mm and 24.36mm, during repairing, four mills with this group, according to order from small to large, be clipped in respectively and carry out the rotation grinding between micrometer two measurement faces, until micrometer two is measured the specification requirement that the face depth of parallelisms reach measurement verification regulations, after several times grind, mill can only abandon because wear out failure is scrapped, and causes waste.another useful machine grinds, be CN 2073790U as the Chinese patent notification number, name is called the utility model patent of " a kind of micrometer grinder ", it is by mill, the micrometer chuck, large guide rail, little guide rail, large worm gear, small gear, worm screw, motor, long eccentric shaft, short eccentric shaft and intermediate bar etc. form, under motor drives, large guide rail and little guide rail are made respectively horizontal and vertical linear reciprocating motion, this two motion is synthesized together and makes mill do approximate figure of eight motion, avoid the original grinding track of repetition, the abradant surface even wearing, can extend the life-span of mill.But the complex structure of this micrometer grinder, cost are high, because movement range is large, is used for the miking face that grinds and is difficult for accomplishing careful, and grinding precision is difficult to control, and adopts the comprehensive transmission of multichannel to affect the raising of flatness.

Summary of the invention

The technical issues that need to address of the present invention are, overcome the defective of the grinder transmission complex effects grinding precision of prior art, provide that a kind of grinding size can accurately be controlled, micrometer mill simple in structure, with low cost.

The objective of the invention is to be achieved by following technical proposals:

But a kind of micrometer mill of accurate adjustment size, comprise the mill matrix, the lower surface of described mill matrix is abradant surface, and the inner chamber of mill matrix is columniform spigot surface, mill matrix upper side is evenly equipped with several spacing holes, and mill matrix upper surface is for adjusting bearing-surface; Cover has adjustment ring in mill matrix upper end, and adjustment ring inside is provided with internal thread, and the adjustment ring periphery is evenly equipped with the unthreaded hole corresponding with described spacing hole, and adjustment ring inside upper part bottom surface compresses mutually with the adjustment bearing-surface of mill matrix upper surface; There is a grinding block to be inserted in the middle of mill matrix and adjustment ring, grinding block is step structure, its top is grinding head, external screw thread is established at its middle part, its underpart is columniform guide section, the guide section side is provided with gathering sill, the external screw thread of grinding block and the screw-internal thread fit of adjustment ring, and the spigot surface of the guide section of grinding block and mill matrix is slidably matched; Have a guiding lock-screw to coordinate with the screw that is located at mill matrix side, the gathering sill of the guide section side of the front end of the lock-screw that leads and grinding block coordinates; Some spacer pins are arranged, and each spacer pin is with the locking of one of unthreaded hole of adjustment ring periphery and the spacing hole of mill matrix upper side.Some spacer pins pass respectively each unthreaded hole on adjustment ring, and adjustment ring is connected securely with the mill matrix; Rotate adjustment ring, drive the grinding head with the adjustment ring screw thread, due to the restriction that is subjected to described guiding lock-screw, grinding head can not rotate and can only slide up or down, thus can finely tune the lower surface of mill matrix and above grinding head between distance.

As preferably, the external screw thread pitch of described grinding block is 0.5mm, and the number of described spacing hole and unthreaded hole is respectively four.Rotate the position of a unthreaded hole, can make grinding block mobile 1/4th pitch, i.e. 0.5/4=0.125mm vertically.

As preferably, described mill matrix upper side is provided with cannelure, and described spacing hole is located at the trench bottom of cannelure; Be provided with cannelure and can make spacer pin can not break away from the mill matrix fully after deviating from spacing hole, avoid the related grinding block of adjustment ring to produce the phenomenon of floating.

The invention has the beneficial effects as follows:

1, simple in structure, easy to operate, precision is high;

2, capable of regulating compensation after the mill wearing and tearing, economize on resources.

Description of drawings

Fig. 1 is the structural representation of an embodiment of the present invention;

Fig. 2 is the schematic diagram of embodiment of the present invention mill matrix;

Fig. 3 is the A-A generalized section of Fig. 2.

In figure, mill matrix 1; Abradant surface 11; Spigot surface 12; Spacing hole 13; Adjust bearing-surface 14; Cannelure 15; Adjustment ring 2; Unthreaded hole 21; Grinding block 3; Grinding head 31; External screw thread 32; Gathering sill 33; Spacer pin 4; Guiding lock-screw 5.

The specific embodiment

The invention will be further described below in conjunction with accompanying drawing and specific embodiments.

Embodiment 1: as shown in Figure 1 and Figure 2, but a kind of micrometer mill of accurate adjustment size, comprise mill matrix 1, the lower surface of mill matrix 1 is abradant surface 11, the inner chamber hypomere of mill matrix 1 is columniform spigot surface 12, the inner chamber epimere of mill matrix 1 is stepped hole, uniform four spacing holes 13 of mill matrix 1 upper side, and mill matrix 1 upper surface is for adjusting bearing-surface 14; Cover has adjustment ring 2 in mill matrix upper end, and adjustment ring 2 inwalls are provided with internal thread, the uniform unthreaded hole corresponding with spacing hole 13 21 of adjustment ring 2 peripheries, and the inboard upper bottom surface of adjustment ring 2 compresses mutually with the adjustment bearing-surface 14 of mill matrix upper surface; Grinding block 3 is inserted in the middle of mill matrix 1 and adjustment ring 2, grinding block 3 is step structure, its top is grinding head 31, external screw thread 32 is established at the middle part, the bottom is columniform guide section, the guide section side is provided with gathering sill 33, the external screw thread 32 of grinding block 3 and the screw-internal thread fit of adjustment ring 2, the external screw thread 32 of grinding block 3 can extend into the stepped hole of mill matrix 1 inner chamber when rotating in, the spigot surface 12 of the guide section of grinding block 3 and mill matrix 1 is slidably matched, and the middle part of grinding block and the total height of bottom are less than the inner chamber total depth of mill matrix 1; Have a guiding lock-screw 5 to coordinate with the screw that is located at mill matrix 1 side, the gathering sill 33 of the guide section side of the front end of the lock-screw 5 that leads and grinding block 3 coordinates; Four spacer pins 4 are arranged, and each spacer pin 4 is with a unthreaded hole 21 and the locking of one of spacing hole 13 of adjustment ring 2 peripheries.Spacer pin 4 passes respectively each unthreaded hole 21 on adjustment ring, and adjustment ring 2 is connected securely with mill matrix 1; Rotate adjustment ring 2, drive the grinding block 3 that is threaded with adjustment ring, due to the restriction of the lock-screw 5 that led, grinding block 3 moves up or down.

External screw thread 32 pitch of grinding block 3 are 0.5mm, because the number of spacing hole 13 and unthreaded hole 21 is respectively four.So rotate the position of a unthreaded hole, can make grinding block 3 mobile 1/4th pitch, i.e. 0.5/4=0.125mm vertically.

Mill matrix 1 upper side is provided with cannelure 15, and spacing hole 13 is located at the trench bottom of cannelure 15; Be provided with cannelure 15 and can make spacer pin 4 can not break away from mill matrix 1 fully after deviating from spacing hole 13, avoid the related grinding block 3 of adjustment ring 2 to produce the phenomenon of floating, as shown in Figure 3.

Claims

1. but the micrometer mill of an accurate adjustment size, it is characterized in that, comprise the mill matrix, the lower surface of described mill matrix is abradant surface, the inner chamber of mill matrix is columniform spigot surface, mill matrix upper side is laid with several spacing holes, and mill matrix upper surface is for adjusting bearing-surface; Cover has adjustment ring in mill matrix upper end, and adjustment ring inside is provided with internal thread, and the adjustment ring periphery is laid with the unthreaded hole corresponding with described spacing hole, and the inboard upper bottom surface of adjustment ring compresses mutually with the adjustment bearing-surface of mill matrix upper surface; There is a grinding block to be inserted in the middle of mill matrix and adjustment ring, grinding block is step structure, its top is grinding head, external screw thread is established at the middle part, the bottom is columniform guide section, the guide section side is provided with gathering sill, the external screw thread of grinding block and the screw-internal thread fit of adjustment ring, and the spigot surface of the guide section of grinding block and mill matrix is slidably matched; Have a guiding lock-screw to coordinate with the screw that is located at mill matrix side, the gathering sill of the guide section side of the front end of the lock-screw that leads and grinding block coordinates; Some spacer pins are arranged, and each spacer pin is the locking of one of a unthreaded hole of adjustment ring periphery and described spacing hole, and the external screw thread pitch at described grinding block middle part is 0.5mm.

2. but the micrometer mill of accurate adjustment size according to claim 1, is characterized in that, the number of described spacing hole and unthreaded hole is respectively four.

3. but the micrometer mill of accurate adjustment size according to claim 1 and 2, is characterized in that, described mill matrix upper side is provided with cannelure, and described spacing hole is located at the trench bottom of cannelure.