CN214723320U

CN214723320U - Honing head rounding device

Info

Publication number: CN214723320U
Application number: CN202120914154.7U
Authority: CN
Inventors: 杨贻计
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Machinery Co Ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-11-16
Anticipated expiration: 2031-04-29

Abstract

The utility model discloses a honing head rounding device, which comprises a first honing head rounding device and a second honing head rounding device, wherein the first honing head rounding device is connected with the handle end of a honing head body, and the second honing head rounding device is connected with the tail end of the honing head body; the first grinding head rounding device comprises a body, the body is integrally of a tubular structure, and a mandrel is arranged in the center of the right side of the body; the outer wall of the middle part of the body is provided with a plurality of waist holes, and spreading assemblies are distributed in the waist holes correspondingly and comprise a plurality of pins and pressing blocks; and a plurality of clamping screws are distributed on the left side of the body. Adopt the utility model has the advantages of realize that rule circle location is high, the precision is high with the axiality of bistrique conducting bar.

Description

Honing head rounding device

Technical Field

The utility model relates to a cylinder block is honing head technical field for jar hole, concretely relates to honing head rule circle device.

Background

The precision requirement of the honing head for honing the cylinder hole of the cylinder block of the diesel engine is very high, and the honing precision of the cylinder hole is directly influenced. Therefore, the grinding bar grinding head on the honing head must be rounded in advance on the outer circle grinding machine by using the grinding wheel to ensure the grinding head precision. The positioning of the grinding head on the grinding machine for rounding and the expansion adjustment of the grinding strip are realized by a rounding device, and the rounding device directly influences the rounding precision of the grinding head.

The currently used devices and methods have the following disadvantages: 1) two central holes for positioning the grinding head are fixed, and cannot be adjusted to be coaxial with the alloy guide of the grinding head, so that the coaxiality of the grinding strip of the round grinding head and the alloy guide is poor, and the honing precision is influenced; 2) when the grinding head is used for rounding, the grinding strip support of the grinding head is tightly hooped by the extension spring and is unreliable, so that the support swings when the grinding head rounds, and the rounding precision is influenced; 3) the adjustment of the expansion of the grinding strip is complex and unreliable, the efficiency is low and the accuracy of circle planning is influenced.

The above background disclosure is only provided to aid in understanding the concepts and technical solutions of the present invention, and it does not necessarily belong to the prior art of the present patent application, and it should not be used to assess the novelty and inventive step of the present application without explicit evidence that the above content has been disclosed at the filing date of the present patent application.

Disclosure of Invention

The utility model provides a to above-mentioned technical problem provide a honing head rounding device that realization rule circle location is high with bistrique direction axiality, coaxial operation is stable.

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

a honing head rounding device comprises a honing head body, wherein a grinding bar support is distributed on the honing head body, and grinding bars are distributed on the grinding bar support; a plurality of grinding head guide bars are axially distributed on the outer wall of the grinding head body; the grinding head body is internally provided with a grinding head push rod and a grinding head push rod sleeve, two ends of the grinding head push rod are respectively provided with a grinding head contraction spring, and the grinding head device also comprises a first grinding head rounding device and a second grinding head rounding device, wherein the first grinding head rounding device is connected with the handle end of the grinding head body, and the second grinding head rounding device is connected with the tail end of the grinding head body; the first grinding head rounding device comprises a body, the body is integrally of a tubular structure, and a mandrel is arranged in the center of the right side of the body; the central hole for rounding the grinding head is arranged on the mandrel and is in clearance fit with the body through a plurality of adjusting screws; a plurality of waist holes are formed in the outer wall of the middle of the body, and spreading assemblies are distributed in the waist holes correspondingly and comprise a plurality of pins and pressing blocks, the pins are distributed on the circumference of the pressing blocks along the radial direction, and the pressing blocks are correspondingly distributed at the tail ends of the grinding head push rod sleeves; the pin extends out of the waist hole; the middle part of the pressing block is also distributed with guide nails; the guide nail is fixed at the center of the body; the outer wall of the middle right side of the body is also provided with threads and an open nut; the left side of the body is distributed with a plurality of clamping screws, and the body is connected with the grinding head body through the clamping screws.

Furthermore, the second grinding head rounding device consists of an end cover and an end cover adjusting screw; the end cover is also provided with a central hole.

Furthermore, a locking screw is further arranged on the open nut.

The utility model has the advantages of compared with the prior art:

1) the center hole capable of being positioned and adjusted is arranged for adjustment, and the precision of the coaxial position of the circle-planning positioning and the grinding head guide bar is high.

2) Through being equipped with first bistrique rule circle device, adjust the back, can adopt locking screw lock die opening nut and through using the abrasive band support of binding with the iron wire, the abrasive band does not whip when guaranteeing the rule circle, further guarantees the abrasive band precision.

3) The grinding strip support is expanded by the opening adjusting nut, force is applied to the 4 pins simultaneously, the opening adjusting nut is locked by the locking screw, adjustment is convenient, rapid and reliable, and circle sizing precision is guaranteed.

Drawings

Fig. 1 is a sectional view of the present invention at the time of coaxial adjustment;

fig. 2 is a cut-away view of the second grinding head rounding device of the present invention;

fig. 3 is a schematic perspective view of the first grinding head rounding device of the present invention;

fig. 4 is a cut-away view of the first grinding head rounding device of the present invention;

fig. 5 is a top view of the first grinding head rounding device of the present invention;

fig. 6 is a top perspective view of the first grinding wheel rounding device according to the present invention.

Detailed Description

A honing head rounding device comprises a honing head body 17, wherein a grinding bar support is distributed on the honing head body 17, and grinding bars are distributed on the grinding bar support; a plurality of grinding head guide bars 15 are axially distributed on the outer wall of the grinding head body through screws 15-1; a grinding head push rod 18 and a grinding head push rod sleeve 24 are further distributed in the grinding head body 17, grinding

head contraction springs

22 and 23 are respectively distributed at two ends of the grinding head push rod 18, and the grinding head grinding; the first grinding head rounding device comprises a body 2, the body 2 is integrally of a tubular structure, and a mandrel 1 is arranged in the center of the right side of the body 2; the central hole for rounding the grinding head is formed in the mandrel 1 and is in clearance fit with the body 2 through a plurality of adjusting screws 3, namely the adjusting screws 3 are distributed along the circumference of the mandrel 1, and when the mandrel 1 is used, the position of the central hole of the mandrel 1 can be controllably adjusted by adjusting the adjusting screws 3; a plurality of waist holes 2-1 are formed in the outer wall of the middle of the body 2, and opening assemblies are distributed in the waist holes 2-1 correspondingly and comprise four pins 6 and pressing blocks 7, the pins 6 are distributed on the pressing blocks 7 in a radial direction for a circle, and the pressing blocks 7 are distributed at the tail ends of the grinding head push rod sleeves 24 correspondingly; the pin 6 extends out of the waist hole 2-1; the middle part of the pressing block 7 is also distributed with guide nails 4; the guide nail 4 is fixed at the center of the body 2; the outer wall of the middle right side of the body is also provided with threads and an open nut 5; the split nut 5 of this embodiment is further provided with a locking screw 8 for locking the split nut 5. A plurality of clamping screws 9 are distributed on the left side of the body 2, and the body is connected with the grinding head body 17 through the clamping screws 9. The second grinding head rounding device consists of an end cover 14 and an end cover adjusting screw 13; the end cover 14 is also provided with a center hole 10 and an adjusting screw hole 11, when the end cover is used, the end cover 14 is finely adjusted in a swinging mode through an end cover adjusting screw 13, and then the center hole is finely adjusted.

The use method of the honing head rounding device comprises the following steps:

(1) using a yaw instrument to respectively jack the

thimbles

12 and 19 at the two ends to the central holes of the first grinding head circle-sizing device and the second grinding head circle-sizing device;

(2) using a dial indicator 16 or a dial indicator to strike on the grinding head guide bar 15, and rotating the grinding head body;

(3) adjusting the coaxiality by using an adjusting screw and an end cover adjusting screw according to the reading of the dial indicator or the dial indicator to obtain high-precision coaxial positioning;

(4) screwing the split nut to enable the pressing block to push the grinding strip push rod sleeve so as to enable the grinding strip to expand, locking the split nut by using the locking screw after the expansion meets the requirement, and binding the grinding strip support by using the

binding iron wires

20 and 21.

By using the device and the method, the coaxial position precision of the two central holes and the grinding head guide bars can be high, meanwhile, the expansion of the grinding bars is accurate and controllable, the high stability and precision of the grinding head are also kept during operation, and the ultrahigh precision requirement of the honing head is met.

Claims

1. A honing head rounding device comprises a honing head body, wherein a grinding bar support is distributed on the honing head body, and grinding bars are distributed on the grinding bar support; a plurality of grinding head guide bars are axially distributed on the outer wall of the grinding head body; still distribute bistrique push rod, bistrique push rod cover in the bistrique body, the both ends of bistrique push rod respectively distribute bistrique shrink spring, its characterized in that: the first grinding head rounding device is connected with the handle end of the grinding head body, and the second grinding head rounding device is connected with the tail end of the grinding head body; the first grinding head rounding device comprises a body, the body is integrally of a tubular structure, and a mandrel is arranged in the center of the right side of the body; the central hole for rounding the grinding head is arranged on the mandrel and is in clearance fit with the body through a plurality of adjusting screws; a plurality of waist holes are formed in the outer wall of the middle of the body, and spreading assemblies are distributed in the waist holes correspondingly and comprise a plurality of pins and pressing blocks, the pins are distributed on the circumference of the pressing blocks along the radial direction, and the pressing blocks are correspondingly distributed at the tail ends of the grinding head push rod sleeves; the pin extends out of the waist hole; the middle part of the pressing block is also distributed with guide nails; the guide nail is fixed at the center of the body; the outer wall of the middle right side of the body is also provided with threads and an open nut; the left side of the body is distributed with a plurality of clamping screws, and the body is connected with the grinding head body through the clamping screws.

2. The honing head rounding device according to claim 1, wherein: the second grinding head rounding device consists of an end cover and an end cover adjusting screw; the end cover is also provided with a central hole.

3. The honing head rounding device according to claim 1, wherein: and the split nut is also provided with a locking screw.