CN109702592B

CN109702592B - Machining method for gate valve hardness measurement detection surface

Info

Publication number: CN109702592B
Application number: CN201811506043.1A
Authority: CN
Inventors: 刘小川
Original assignee: Suzhou Fujie Machinery Co ltd
Current assignee: Jiangsu Fujie high end equipment manufacturing (Group) Co.,Ltd.
Priority date: 2018-12-10
Filing date: 2018-12-10
Publication date: 2020-07-21
Anticipated expiration: 2038-12-10
Also published as: CN111660155B; CN111660166A; CN109702592A; CN111660155A; CN111660166B

Abstract

The invention relates to a processing method of a gate valve hardness detection surface, which adopts processing equipment comprising a positioning device of a gate valve and two grinders for grinding the end surface of the positioned gate valve, wherein the two grinders are symmetrically arranged at two sides of the positioning device, and the processing process comprises the following steps: 1) firstly, positioning the gate valve on a positioning device from two end parts towards two side grinding machines respectively; 2) and quantitative cutting at the designated positions of the two end faces of the gate valve is realized by the opposite movement of the grinders at the two sides, and the detection surface is completed at the same time. On one hand, after the gate valve is positioned once, the two grinding machines move simultaneously, so that the detection surfaces at the two ends of the gate valve are formed simultaneously, and the machining efficiency of the detection surfaces of the gate valve is greatly improved; on the other hand can avoid polishing the in-process piece guide rail under the prerequisite that does not influence the polisher sideslip, ensures that the polished surface precision of polisher accords with the detection requirement.

Description

Machining method for gate valve hardness measurement detection surface

Technical Field

The invention belongs to the field of gate valve detection and processing, and particularly relates to a processing method of a gate valve hardness detection surface.

Background

At present, after the gate valve is formed, the hardness performance of the gate valve needs to be detected, so that a detection surface needs to be formed by polishing, and then the detection is carried out by a hardness tester.

However, in many enterprises, grinding is performed manually by using a grinder, and although a detection surface can be formed, the manual grinding is inefficient. Therefore, automatic sander has appeared in the market, as long as with the gate valve location back, through the quantitative motion of the head of polishing, not only detect the face and form fast, accurate moreover to detect the accuracy of structure.

Therefore, some grinding machines are available in the market, which realize quantitative grinding through the cooperation of the guide rail and several seats, however, in the grinding process, the grinding sand splashes and easily falls into the guide rail, so that the grinding machine is greatly abraded, and the grinding accuracy is also influenced.

Meanwhile, the grinding machine is adopted, how to position the gate valve is firstly considered, and at present, the adopted positioning mode basically adopts a binding or locking type, and although the grinding requirement can be met, the operation is very complicated and very inconvenient.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide an improved machining method for a gate valve hardness testing surface. On one hand, after once positioning, the two grinding machines move simultaneously, so that the detection surfaces at the two ends of the gate valve are formed simultaneously, and the machining efficiency of the detection surfaces of the gate valve is greatly improved; on the other hand can avoid polishing the in-process piece guide rail under the prerequisite that does not influence the polisher sideslip, ensures that the polished surface precision of polisher accords with the detection requirement.

In order to achieve the purpose, the invention provides a processing method of a gate valve hardness detection surface, which adopts processing equipment comprising a positioning device of a gate valve and a grinding machine for grinding the end surface of the positioned gate valve, wherein the grinding machine comprises a frame; the guide rail is arranged on the frame and is horizontally arranged; the base is arranged on the guide rail in a sliding mode; a grinding tool located on the base; the fixed seat is arranged at the end part of the guide rail close to the polishing center; the transmission roller assembly is arranged on the fixed seat and horizontally extends along the direction vertical to the guide rail; one end of the crawler is connected to the base, the other end of the crawler passes through the upper part of the guide rail and is freely suspended after the transmission roller assembly is erected, a shielding surface for preventing scraps from falling into the guide rail is formed on the crawler, the free end of the crawler can move up and down along with the transverse movement of the base, and when the base moves transversely on the guide rail, the shielding surface of the crawler can shield the guide rail which is positioned between the polishing center and the base and leaks outwards;

the polisher has two, and the symmetry sets up in positioner's both sides, and the simultaneous processing process is as follows:

1) firstly, positioning the gate valve on a positioning device from two end parts towards two side grinding machines respectively;

2) and quantitative cutting at the designated positions of the two end faces of the gate valve is realized by the opposite movement of the grinders at the two sides, and the detection surface is completed at the same time.

Preferably, the positioning device comprises a base, a supporting seat arranged on the base and used for supporting the gate valve, and a buckling assembly used for buckling and pressing the gate valve on the supporting seat, wherein the supporting seat comprises supporting panels symmetrically arranged at two end parts of the base, a groove which is sunken downwards from the top is arranged on each supporting panel, the end part of the gate valve is positioned in the groove, and an isosceles triangle with a downward vertex angle is formed at a contact point of the gate valve and the groove, and the altitude of the isosceles triangle is positioned on the central line of the end part of the corresponding side gate valve in the vertical direction; the buckling assembly is positioned between the two supporting panels and comprises a movable rod capable of moving up and down along the vertical direction and a pressing strip capable of rotating around the central line direction of the movable rod and arranged at the upper end part of the movable rod, wherein the pressing strip is buckled on the gate valve under the movement of the movable rod and the rotation adjustment of the pressing strip. Not only convenient gate valve's location, stability is high after the location moreover.

Preferably, the angle of the vertex angle of the isosceles triangle is 90-150 degrees. Wherein the angle of the apex angle of the isosceles triangle is 120 deg.

According to a specific embodiment and preferred aspect of the present invention, the opening of the groove has a trapezoidal shape which becomes gradually smaller from top to bottom.

Preferably, the trapezoid is an isosceles trapezoid.

According to a further embodiment and preferred aspect of the invention, the bottom of the crimping assembly positions the crimping assembly on the base through the connecting base and a bolt member from the bottom of the base, wherein the bottom of the base is provided with a countersunk hole in which a cap of the bolt member is concealed.

Preferably, the pressing strip is provided with an adjusting groove extending along the length direction of the pressing strip, and the pressing strip can be movably arranged at the upper end part of the movable rod along the length adjusting direction in an adjusting manner.

Preferably, the buckling and pressing assemblies are arranged in two groups and are symmetrically arranged on two opposite sides of the base in the width direction.

In addition, the positioning device also comprises a fence module arranged outside one of the two supporting panels.

Preferably, the fence module comprises an extension plate fixed on the outer side of the support panel and positioned below the groove, and a fence plate vertically and upwardly extending from the outer end part of the extension plate, and the gate valve is fixed on the support panel and abuts against the fence plate from one end part of the gate valve.

According to a specific embodiment and preferred aspect of the present invention, the driving roller assembly includes a driving shaft horizontally extending in a direction perpendicular to the guide rail, and a driving roller rotatably provided on the driving shaft about its axis, the driving roller rotating with the track when the track moves.

Preferably, the driving roller comprises at least two driving wheels rotating around the axis of the driving roller, and the driving wheels are distributed at intervals along the length direction of the driving shaft. The contact area is reduced, the friction force is reduced, and the synchronous shielding movement of the crawler is facilitated.

Specifically, the transmission shaft is fixed on the fixed seat, and the transmission wheel is a bearing.

Preferably, the height of the upper end part of the bearing from the ground is less than or equal to the height of the connecting end part of the crawler and the base from the ground.

According to a further embodiment and preferred aspect of the invention, a counterweight is also provided at the free end of the track, wherein the track is relatively tensioned by the counterweight. Thus, the possibility of the track being worn by the track being loosened can be effectively prevented.

Preferably, the track width is equal to the length of the base extending horizontally and perpendicular to the rail direction. This covers the entire width direction.

Specifically, the crawler comprises a plurality of belt strips extending horizontally in a direction perpendicular to the guide rail, and connecting pieces for connecting every two adjacent belt strips, wherein the belt strips and the connecting pieces can form a shielding surface.

In addition, the grinding machine also comprises a lifting mechanism for driving the grinding tool to move up and down and a transverse moving mechanism for driving the base to transversely move on the guide rail.

Preferably, fixing base, driving roller subassembly and track form the piece and shelter from the mechanism, and the polisher still includes the symmetry and sets up the piece that keeps away from the center tip of polishing at the guide rail and shelter from the mechanism. Therefore, no matter the base moves to any position on the guide rail in a transverse mode, the guide rail leakage part is completely shielded, the service life of the grinding machine can be prolonged, and the grinding surface precision of the grinding machine can meet the detection requirement.

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

on one hand, after the gate valve is positioned once, the two grinding machines move simultaneously, so that the detection surfaces at the two ends of the gate valve are formed simultaneously, and the machining efficiency of the detection surfaces of the gate valve is greatly improved; on the other hand can avoid polishing the in-process piece guide rail under the prerequisite that does not influence the polisher sideslip, ensures that the polished surface precision of polisher accords with the detection requirement.

Drawings

FIG. 1 is a schematic view of the construction of a processing apparatus according to the present invention;

FIG. 2 is a schematic elevational view of the sander of FIG. 1;

FIG. 3 is a schematic structural diagram of the positioning device of FIG. 1;

FIG. 4 is a schematic front view of the positioning device of FIG. 3;

FIG. 5 is a partial side view of FIG. 4;

in the drawings: J. a sander; 1. a frame; 2. a guide rail; 3. a base; 4. polishing the tool; 5. a fixed seat; 6. a drive roll assembly; 60. a drive shaft; 61. a driving roller; 610. a transmission wheel (bearing); 7. a crawler belt; 70. a tape; 71. a connecting member; 8. a balancing weight; a, A', a debris shielding mechanism;

D. a positioning device; d1, a base; d10, a counter sink; d2, a supporting seat; d20, support panel; 20a, a groove; d3, buckling and pressing the component; d30, a movable rod; d31, pressing strips; d32, a connecting seat; d33, bolt pieces; d4, a gate leaning module; d40, extension board; d41, a backup grid plate;

F. and (4) a gate valve.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature. It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1, in the processing method for measuring hardness of a gate valve, the processing equipment used in the processing method includes a positioning device D and a grinding machine J located on two opposite sides of the positioning device D. In this example, after the gate valve F is positioned, the two grinders J located on both sides can synchronously finish grinding the two end faces of the gate valve F, thereby quickly forming the detection surface.

Specifically, as shown in fig. 2, the sander J includes a frame 1; a guide rail 2 which is arranged on the frame 1 and is horizontally arranged; a base 3 slidably disposed on the guide rail 2; a grinding tool 4 located on the base 3; the fixed seat 5 is arranged at the end part of the guide rail 2 close to the polishing center; the driving roller assembly 6 is arranged on the fixed seat 5 and horizontally extends along the direction vertical to the guide rail 2; one end is connected on base 3, another tip passes through guide rail 2 top and sets up the track 7 that freely hangs down behind driving roller assembly 6, and wherein track 7 is formed with the shielding face that prevents the piece and fall into the guide rail, and the free end of track 7 can reciprocate along with the sideslip of base 3, and when base 3 traversed on guide rail 2, the shielding face of track 7 can shelter from being located the guide rail 2 that leaks outward between center of polishing and the base 3.

In this example, the fixed base 5, the driving roller assembly 6 and the caterpillar 7 form a debris shielding mechanism a, and the sander further comprises a debris shielding mechanism a' symmetrically arranged at the end of the guide rail 2 far away from the sanding center. Therefore, no matter the base moves to any position on the guide rail in a transverse mode, the guide rail leakage part is completely shielded, the service life of the grinding machine can be prolonged, and the grinding surface precision of the grinding machine can meet the detection requirement.

Specifically, the driving roller assembly 6 includes a driving shaft 60 horizontally extending in a direction perpendicular to the guide rail 2, and a driving roller 61 rotatably provided on the driving shaft 60 about its axis, and the driving roller 61 rotates when the crawler 7 moves.

The driving roller 61 includes two driving wheels 610 rotating around its axis, wherein the two driving wheels 610 are distributed at both ends of the driving shaft 60. The contact area is reduced, the friction force is reduced, and the synchronous shielding movement of the crawler is facilitated.

In this embodiment, the transmission shaft 60 is fixed on the fixing base 5, and the transmission wheel 610 is a bearing.

Meanwhile, the height from the upper end of the bearing to the ground is smaller than the height from the connecting end of the track and the base to the ground.

In this case, the free ends of the two tracks 7 are then each provided with a counterweight 8, wherein the tracks 7 are tensioned relative to one another by the counterweight 8. Thus, the possibility of the track being worn by the track being loosened can be effectively prevented.

The width of the track 7 is equal to the length of the base 3 extending horizontally in a direction perpendicular to the rails 2. This covers the entire width direction.

The crawler belt 7 includes a plurality of strips 70 extending horizontally in a direction perpendicular to the guide rail 2, and a connecting member 71 for connecting each adjacent two strips 70, wherein the strips 70 and the connecting member 71 can form a shielding surface.

Further, the sander J includes an elevating mechanism (not shown, but not shown) for driving the sanding tool 4 to move up and down, and a traverse mechanism (not shown, but not shown) for driving the base 3 to traverse on the guide rail 2.

As shown in fig. 3 to 5, the positioning device D includes a base D1, a support seat D2 disposed on the base D1 for supporting the gate valve F, and a fastening assembly D3 for fastening the gate valve F to the support seat D2.

Specifically, the base D1 is a horizontally disposed substrate and is rectangular.

The support seat D2 comprises support panels D20 symmetrically disposed on two ends of the base D1, wherein a groove 20a recessed downward from the top is disposed on the support panel D20, the end of the gate valve F is disposed in the groove 20a, and a contact point with the groove 20a forms an isosceles triangle with a downward vertex angle, wherein a high line of the isosceles triangle is located on a central line of the vertical direction of the end of the corresponding side gate valve.

As shown in fig. 5, the isosceles triangle is shown by the dotted line, and the angle of the apex angle is 120 °.

Meanwhile, the opening of the groove 20a is in the shape of an isosceles trapezoid that becomes gradually smaller from top to bottom.

The buckling assembly D3 is located between the two support panels D20, and includes a movable rod D30 capable of moving up and down in the vertical direction, a bead D31 rotatably disposed at the upper end portion of the movable rod D30 about the center line direction of the movable rod D30, wherein the bead D31 is buckled on the gate valve F under the movement of the movable rod D30 and the rotational adjustment of the bead D31.

In this example, there are two sets of the fastening assemblies D3 symmetrically disposed on both sides of the substrate in the width direction.

Specifically, the bottom of the buckling and pressing assembly D3 positions the buckling and pressing assembly D3 on the base D1 through the connecting seat D32 and a bolt piece D33 from the bottom of the base D1, wherein the bottom of the base D1 is provided with a counter bore D10, and a bolt cap of the bolt piece D33 is hidden in the counter bore D10.

In order to adjust the length of the presser bar D31 pressed against the gate valve F, in this example, the presser bar D31 is provided with an adjustment groove 31a extending in the longitudinal direction thereof, and the presser bar D31 is provided at the upper end portion of the movable rod D30 so as to be movable and adjustable in the adjustment longitudinal direction.

As to how to rotate, the simplest embodiment is adopted in the application, the two are locked by the bolt, and when the bolt is loosened, the pressing bar D31 can rotate around the bolt or be adjusted along the length direction of the adjusting groove 31 a.

In addition, the positioning device further includes a fence module D4 disposed outside one of the two support panels D20D 20.

The fence module D4 includes an extension plate D40 fixed outside the support panel D20 and located below the groove 20a, a fence D41 extending vertically upward from the outer end of the extension plate D40, and a gate valve F fixed on the support panel D20 and abutted against the fence D41 from one end of the gate valve F.

In this example, the extension plate D40 extends horizontally, and is disposed to be perpendicular to the extension plate D40 by the grid plate D41.

Therefore, with the positioning device D described above, it has the following advantages:

1. under the stable support of the isosceles triangle, the buckling and pressing assemblies on the two sides are combined, so that the gate valve is very stable after being positioned;

2. the gate valve is conveniently positioned and disassembled and assembled by up-and-down movement of the movable rod, rotation of the pressing strip or movement and adjustment along the length direction of the gate valve;

3. and the gate valve is further convenient to position by combining the arrangement of the gate leaning module, and meanwhile, a certain limiting effect can be achieved.

In summary, the processing procedure of this embodiment is as follows:

Therefore, in the embodiment, on one hand, after one-time positioning, the two grinding machines move simultaneously, so that the detection surfaces at the two ends of the gate valve are formed simultaneously, and the machining efficiency of the detection surfaces of the gate valve is greatly improved; on the other hand can avoid polishing in-process piece guide rail under the prerequisite that does not influence the polisher sideslip, ensures that the polished surface precision of polisher accords with the detection requirement, and the while location is convenient, and gate valve stability is enough to satisfy the processing requirement after fixing a position moreover.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.

Claims

1. A processing method for measuring hardness detection surface of a gate valve adopts processing equipment comprising a positioning device of the gate valve and a polisher for polishing the end surface of the gate valve after positioning, wherein the polisher comprises a frame, a guide rail which is arranged on the frame and horizontally arranged, a base which is arranged on the guide rail in a sliding manner, and a polishing tool which is arranged on the base, and is characterized in that: a fixed seat is arranged at the end part of the guide rail close to the polishing center, and the polishing machine further comprises a transmission roller assembly which is arranged on the fixed seat and horizontally extends along the direction vertical to the guide rail; the crawler belt is connected to the base at one end, passes through the upper part of the guide rail at the other end, and is erected with the transmission roller assembly and then freely sags, wherein a shielding surface for preventing scraps from falling into the guide rail is formed on the crawler belt, the free end of the crawler belt can move up and down along with the transverse movement of the base, and when the base transversely moves on the guide rail, the shielding surface of the crawler belt can shield the guide rail which is positioned between the grinding center and the base and leaks outwards;

the free end part of the crawler belt is also provided with a balancing weight, wherein the crawler belt is relatively tensioned under the action of the balancing weight;

the sander also comprises a lifting mechanism for driving the sanding tool to move up and down, a transverse moving mechanism for driving the base to transversely move on the guide rail, the fixed seat, the transmission roller assembly and the crawler form a debris shielding mechanism, and the sander also comprises the debris shielding mechanisms symmetrically arranged at the end parts of the guide rail far away from the sanding center;

the polisher has two, and the symmetry sets up positioner's both sides, the simultaneous processing process as follows:

2) and quantitative cutting at the designated positions of the two end faces of the gate valve is realized by the opposite movement of the grinding machines at the two sides, and the detection surface is completed at the same time.

2. The method for processing the gate valve hardness testing surface according to claim 1, characterized in that: the positioning device comprises a base, a supporting seat arranged on the base and used for supporting a gate valve, and a buckling assembly used for buckling and pressing the gate valve on the supporting seat, wherein the supporting seat comprises supporting panels symmetrically arranged at two ends of the base, a groove which is sunken downwards from the top is arranged on each supporting panel, the end part of the gate valve is positioned in the groove, and an isosceles triangle with a downward vertex angle is formed at the contact point of the end part of the gate valve and the groove, and the altitude line of the isosceles triangle is positioned on the central line of the end part of the gate valve in the vertical direction at the corresponding side; withhold the subassembly and be located two between the supporting panel, and including can be along vertical direction up-and-down motion's movable rod, can round the movable rod central line direction rotates the setting and is in the layering of movable rod upper end, wherein the movable rod motion with under the rotation regulation of layering will the layering withhold on the gate valve.

3. The method for processing the gate valve hardness testing surface according to claim 2, characterized in that: the angle of the vertex angle of the isosceles triangle is 90-150 degrees.

4. The method for processing the gate valve hardness testing surface according to claim 2, characterized in that: the opening of the groove is in an isosceles trapezoid shape which is gradually reduced from top to bottom.

5. The method for processing the gate valve hardness testing surface according to claim 2, characterized in that: the pressing strip is provided with an adjusting groove extending along the length direction of the pressing strip, and the pressing strip can also be arranged at the upper end part of the movable rod in a movable and adjustable manner along the length adjusting direction.

6. The method for processing the gate valve hardness testing surface according to claim 2, characterized in that: the positioning device further comprises a fence module arranged on one of the two supporting panels and arranged on the outer side of the supporting panel, wherein the fence module comprises an extension plate fixed on the outer side of the supporting panel and positioned below the groove, and a fence plate vertically and upwards extending from the outer end part of the extension plate, the gate valve is positioned on the supporting panel, and one end part of the gate valve abuts against the fence plate.

7. The method for processing the gate valve hardness testing surface according to claim 1, characterized in that: the driving roller assembly comprises a driving shaft horizontally extending along the direction perpendicular to the guide rail, and a driving roller rotatably arranged on the driving shaft around the axis direction of the driving roller assembly, wherein when the crawler belt moves, the driving roller rotates along with the crawler belt.

8. The method for processing the gate valve hardness testing surface according to claim 7, characterized in that: the driving roller comprises at least two driving wheels rotating around the axis of the driving roller, and the driving wheels are distributed at intervals along the length direction of the transmission shaft.