阅读说明：本技术 一种垫片机加工用可调平台及其方法 (Adjustable platform for machining gasket and method thereof ) 是由 黄树宏 傅新皓 黄雪 刘凯 于亮 李会 于 2020-10-15 设计创作，主要内容包括：本发明提出的是一种垫片机加工用可调平台及其方法。在夹具与机加工床台间设计增加一种可调平台,先夹持工件,再统一通过高精度机械装置调整工件待加工斜度,解决传统船用垫片机加工精度差、效率低的难题。通过调整平台两个维度的斜度以达到调整待加工斜面的斜度,可先夹持好垫片再进行调整,大幅度提高了调整精度,避免了因夹持造成的调整偏差；可调平台具有自锁功能,可为夹具和垫片提供极好的刚性支撑,不存在斜度窜动问题；可调平台可通过专利提供的计算方法实现0.01mm级别的精确调整,调节精度高,可调平台装置操作简便,调节效率高,提高了垫片加工整体效率；装置成本低,结构精致,具有极强的可推广性。适宜作为垫片机加工装置应用。(The invention provides an adjustable platform for machining a gasket and a method thereof. An adjustable platform is additionally arranged between the clamp and the machining bed, a workpiece is clamped firstly, then the inclination to be machined of the workpiece is uniformly adjusted through a high-precision mechanical device, and the problems of poor machining precision and low efficiency of the traditional marine gasket machining machine are solved. The inclination of the inclined plane to be machined is adjusted by adjusting the inclination of two dimensions of the platform, the gasket can be clamped firstly and then adjusted, the adjustment precision is greatly improved, and the adjustment deviation caused by clamping is avoided; the adjustable platform has a self-locking function, can provide excellent rigid support for the clamp and the gasket, and does not have the problem of inclination movement; the adjustable platform can realize the accurate adjustment of 0.01mm grade by the calculation method provided by the patent, the adjustment precision is high, the adjustable platform device is simple and convenient to operate, the adjustment efficiency is high, and the overall efficiency of gasket processing is improved; the device has low cost, delicate structure and strong popularization. The gasket machining device is suitable for being applied as a gasket machining device.)

1. The utility model provides a gasket machine tooling is with adjustable platform which characterized by: the device mainly comprises a middle plate (1), an upper plate (2), a lower plate (3), a hinge (4), a baffle (5), a guide groove block (6), an adjusting bolt (7), a bearing lower seat (8), a bearing upper seat (9), an adjusting slide block (10), a limiting block (11), a positioning block (12), a bearing (13) and a pushing connecting column (14);

the middle plate (1) is respectively connected with the upper plate (2) and the lower plate (3) through four hinges (4) and four bearings (13), wherein each hinge (4) is connected with the middle plate (1) through four bolts so as to realize the opening and closing of the upper plate (2) on the middle plate (1) and the opening and closing of the middle plate (1) and the upper plate (2) on the lower plate (3), thereby realizing the inclination adjustment;

the upper plate (2) is provided with two pincer-shaped openings for connecting the gasket clamp; the lower plate (3) is also provided with two pincerlike openings for connecting a machining bed; the positioning blocks (12) are connected to the kidney-shaped blind holes of the lower plates (3), the protruding parts of the positioning blocks (12) are inserted into the kidney-shaped blind holes of the bed table, so that the direction of the adjustable platform is ensured to be fixed, and two positioning blocks (12) are arranged on each lower plate (3); thereby realizing the fixation of the adjustable platform and the bed and the fixation of the adjustable platform and the gasket clamp;

the number of the baffle plates (5) is two, one baffle plate is connected with the lower plate (3) through four bolts, and the other baffle plate is connected with the middle plate (1) through four bolts;

the number of the adjusting bolts (7) is two, one adjusting bolt (7) is used for adjusting the opening and closing of the upper plate (2) on the middle plate (1), and the other adjusting bolt (7) is used for adjusting the opening and closing of the middle plate (1) and the upper plate (2) on the lower plate (3);

the thread part of the adjusting bolt (7) penetrates through a thread hole in the baffle (5) in the direction from the ball head to the interior of the adjustable platform, the lower bearing seat (8) and the upper bearing seat (9) are wrapped on the ball head of the adjusting bolt (7) and are connected with the adjusting slide block (10), wherein the external thread of the upper bearing seat (9) is connected with the internal thread of the end of the adjusting slide block (10), and the ball head of the adjusting bolt (7) and the lower bearing seat (8) are wrapped in the adjusting slide block (10);

the adjusting slide block (10) is connected with the two guide groove blocks (6) through a pushing connecting column (14), and the pushing connecting column (14) can slide obliquely on an oblique waist circular hole on the guide groove block (6); the two guide groove blocks (6) are respectively arranged at the left side and the right side of the adjusting slide block (10) to form a guide groove capable of sliding obliquely; when the adjusting bolt (7) is rotated, the ball head of the adjusting bolt (7) pushes the adjusting slide block (10), the pushing connecting column (14) connected with the adjusting slide block (10) slides on the upper chute of the guide chute block (6) in an inclined manner, and the two guide chute blocks (6) are jacked up; therefore, the guide groove block (6), the adjusting slide block (10) and the pushing connecting column (14) form a jacking unit.

2. The adjustable platform for machining gaskets as claimed in claim 1, wherein:

two bolt holes are respectively formed in the two guide groove blocks (6) of the jacking unit, and the two guide groove blocks are connected with the upper plate (2) and the middle plate (1) through countersunk bolts, so that the guide groove blocks (6) are connected with the upper plate (2) and the middle plate (1); two bolt holes are formed in an adjusting sliding block (10) of the jacking unit, and the two bolt holes and two countersunk bolts are respectively connected with the middle plate (1) and the lower plate (3), so that the adjusting sliding block (10) is connected with the middle plate (1) and the lower plate (3); the pushing connecting column (14) is fixedly connected with the adjusting slide block (10) through a countersunk jackscrew.

3. The adjustable platform for machining gaskets as claimed in claim 1, wherein:

the adjustable platform comprises two jacking units which respectively jack up the upper plate (2), the lower plate (3) and the middle plate (1) to realize the adjustment of the inclination in two directions; taking the jacking unit for jacking the upper plate (2) as an example, the adjusting slide (10) of the jacking unit is fixed with the middle plate (1), and the guide groove block (6) of the jacking unit is connected and fixed with the upper plate (2); when the adjusting bolt (7) is rotated, the ball head on the adjusting bolt (7) pushes the adjusting slide block (10), the adjusting slide block (10) and the pushing connecting column (14) on the adjusting slide block (10) and the guide groove block (6) generate relative movement, the upper plate (2) is jacked, and the inclination is increased; when the adjusting bolt (7) is rotated reversely, the upper plate (2) falls back, and the inclination is reduced; the other adjusting unit jacks up the lower plate (3) and the middle plate (1) and is not described in detail.

4. The adjustable platform for machining gaskets as claimed in claim 1, wherein:

the lower bearing seat (8) and the upper bearing seat (9) are made of copper materials, and the rest are made of carbon steel materials; the internal spherical surface sphericity of the ball head of the adjusting bolt (7), the lower bearing seat (8) and the upper bearing seat (9) is 0.02, so that full contact is ensured.

5. The adjustable platform for machining gaskets as claimed in claim 1, wherein:

the jacking unit is similar to a lead screw guide rail, so that the self-locking performance is realized, the inclination of the adjustable platform is always fixed and unchanged after one inclination is adjusted, and the support is provided for machining clamps and public buildings.

6. The method of using the adjustable platform for machining gaskets as claimed in claim 1, wherein:

a method for applying an adjustable platform for machining a gasket is implemented according to the following steps:

1) fastening the adjustable platform lower plate (3) with a machining bed through bolts to ensure that the positioning block (12) is inserted into the waist circular hole of the bed; meanwhile, the adjustable platform upper plate (2) is fastened with the gasket clamp through a bolt;

2) when the gasket machining is needed, preprocessing the front and back surfaces of the gasket to be machined at four corners, machining the front and back surfaces into two optional planes which are parallel as much as possible, wherein machining allowance must be reserved for the side length size and the thickness size in the machining process;

3) according to the target and machining size of the four corners of the four-corner gasket in the drawing and the distribution condition of the long edges and the short edges of the four-corner gasket, taking a machined plane as a reference surface, and clamping the gasket on a clamping fixture with the reference surface facing downwards;

4) measuring the actual height of four corners of the gasket, converting the height of the four corners after adjustment according to the actual distance between the marine equipment and the base and the target machining size, wherein the height deviation delta 1/[ delta ] 2/A3/A4 of the theoretical adjacent edges is calculated according to the axioms delta 1= [ delta ] 3, [ delta ] 2= [ delta ] 4, the deviation delta 5/[ delta ] 6/[ delta ] 7/A8 of the actual adjacent edges of the height of the four corners is calculated according to the axioms delta 5= [ delta ] 7, [ delta ] 6= [ delta ] 8; and converting the deviation height of the adjacent edges into the number of turns of the adjusting bolt 7 needing to rotate;

5) firstly, coarsely adjusting the adjustable platform according to the converted number of turns, and preliminarily adjusting the inclination of the adjustable platform by rotating the adjusting bolts (7) in two directions;

6) erecting a dial indicator, measuring the deviation condition of adjacent edges, and rotating the adjusting bolt 7 according to the measurement deviation of the dial indicator until the deviation is completely consistent with the target requirement, so that the inclination adjustment is finished;

7) determining the removal allowance value of the milling cutter according to the deviation of the actual height and the theoretical height of the wide angle of the four-corner gasket; it should be noted that the machining removal margin should be determined to be 0.1mm by taking the grinding margin of the device mounting pad into full consideration.

Technical Field

The invention relates to the technical field of ship final assembly construction, in particular to an adjustable platform for gasket machining and a method thereof.

Background

When the ship equipment is installed, a proper equipment gasket is required to be processed according to the size between the base and the equipment corner, so that the accuracy and the stability of equipment installation are ensured. Such a shim is typically a flat rectangular parallelepiped block of steel. The dimensions vary with the size of the device. The cuboid steel block is processed into an inclined hexahedron which accords with the actual inclined plane state of the equipment corner and the base according to the actual inclined plane size state of the equipment corner and the base. The processing precision of the height of the four corners of the inclined plane and the planeness of the inclined plane is directly related to whether the installation of large-scale equipment of the ship is qualified or not. And a plurality of gaskets need to be processed in the whole ship, and the workload is very large. The machining precision and efficiency of the equipment gasket are directly related to the equipment installation quality and the outfitting construction overall progress in the ship outfitting stage. Once reworked, a great deal of manpower, financial resources and time are consumed.

The traditional gasket machining method mainly adopts the steps of adjusting the positions of a gasket and a clamp, forming a machinable inclination by the adjustment of a feeler gauge, and machining by a planer/milling machine. The method is usually used for clamping a workpiece after the inclination of the gasket is adjusted, and the final positioning inclination and the theoretical inclination are deviated due to relative movement of the clamped workpiece and the clamp, so that the machining precision of the gasket is low. The material is usually removed several times in a little by little to ensure the final machining precision, and the method generally increases the amount of the grinding and matching in order not to machine waste products, thereby increasing the grinding and matching time, increasing the working strength and having low efficiency.

Disclosure of Invention

The invention provides an adjustable platform for gasket machining and a method thereof, aiming at solving the problems of poor machining precision and low efficiency of a gasket. The method is characterized in that an adjustable platform is additionally arranged between a clamp and a machining lathe, a workpiece is clamped firstly, then the inclination to be machined of the workpiece is uniformly adjusted through a high-precision mechanical device, a novel inclination adjusting method is provided, the inclination of the inclined plane to be machined is adjusted through adjusting the inclination of two dimensions of the platform, the method is simple to operate and high in machining precision, and the problems of poor machining precision and low efficiency of a traditional marine gasket machining machine are solved.

The technical scheme adopted by the invention for solving the technical problems is as follows:

an adjustable platform for machining gaskets mainly comprises a middle plate, an upper plate, a lower plate, a hinge, a baffle plate, a guide groove block, an adjusting bolt, a bearing lower seat, a bearing upper seat, an adjusting slide block, a limiting block, a positioning block, a bearing and a pushing connecting column.

The middle plate is connected with the upper plate and the lower plate through four hinges and four bearings respectively, wherein each hinge is connected with the middle plate through four bolts so as to realize the opening and closing of the upper plate on the middle plate and the opening and closing of the middle plate and the upper plate on the lower plate, and therefore the inclination adjustment is realized.

The upper plate is provided with two pincerlike notches for connecting the gasket clamp; the lower plate is also provided with two pincerlike openings for connecting a machining bed; the positioning blocks are connected to the oval blind holes of the lower plates, the protruding parts of the positioning blocks are inserted into the oval blind holes of the table, so that the direction fixation of the adjustable platform is ensured, and two positioning blocks are arranged on each lower plate; therefore, the adjustable platform is fixed with the bed and the adjustable platform is fixed with the gasket clamp.

The number of the baffle plates is two, one baffle plate is connected with the lower plate through four bolts, and the other baffle plate is connected with the middle plate through four bolts.

The number of the adjusting bolts is two, one of the adjusting bolts is used for adjusting the upper plate to be opened and closed on the middle plate, and the other adjusting bolt is used for adjusting the middle plate and the upper plate to be opened and closed on the lower plate.

The threaded part of the adjusting bolt penetrates through a threaded hole in the baffle plate from the ball head to the inner direction of the adjustable platform, the lower bearing seat and the upper bearing seat are wrapped on the ball head of the adjusting bolt and are connected with the adjusting slide block, wherein the external thread of the upper bearing seat is connected with the internal thread of the end head of the adjusting slide block, and the ball head of the adjusting bolt and the lower bearing seat are wrapped in the adjusting slide block.

The adjusting slide block is connected with the two guide groove blocks through a pushing connecting column, and the pushing connecting column can slide in the oblique direction of the oval hole on the guide groove block in the oblique direction; the two guide groove blocks are respectively arranged at the left side and the right side of the adjusting slide block to form a guide groove capable of sliding obliquely; when the adjusting bolt is rotated, the ball head of the adjusting bolt pushes the adjusting slide block, and the pushing connecting column connected with the adjusting slide block slides obliquely on the chute on the guide groove block to jack up the two guide groove blocks; therefore, the guide groove block, the adjusting slide block and the pushing connecting column form a jacking unit.

Two bolt holes are respectively formed in the two guide groove blocks of the jacking unit, and the two guide groove blocks are connected with the upper plate and the middle plate through countersunk bolts so as to further realize the connection of the guide groove blocks with the upper plate and the middle plate; two bolt holes are formed in the adjusting sliding block of the jacking unit, and the two bolt holes and two countersunk head bolts are respectively connected with the middle plate and the lower plate, so that the adjusting sliding block is connected with the middle plate and the lower plate; the pushing connecting column is fixedly connected with the adjusting slide block through a countersunk head jackscrew.

The adjustable platform comprises two jacking units which respectively jack up the upper plate, the lower plate and the middle plate to realize the adjustment of the inclination in two directions; taking the jacking unit for jacking the upper plate as an example, the guide groove block of the jacking unit is fixedly connected with the upper plate as the adjusting slide of the jacking unit is fixed with the middle plate; when the adjusting bolt is rotated, the ball head on the adjusting bolt pushes the adjusting slide block, the adjusting slide block and the pushing connecting column on the adjusting slide block and the guide groove block generate relative movement, the upper plate is pushed up, and the inclination is increased; when the adjusting bolt is rotated reversely, the upper plate falls back, and the inclination is reduced; the other adjusting unit is not described in detail to jack up the lower plate and the middle plate.

The lower bearing seat and the upper bearing seat are made of copper materials, and the rest are made of carbon steel materials; the internal spherical surface sphericity of the adjusting bolt ball head, the lower bearing seat and the upper bearing seat is 0.02mm, so that full contact is ensured.

The jacking unit is similar to a lead screw guide rail, has excellent self-locking performance, ensures that the inclination of the adjustable platform is always fixed and unchanged after one inclination is adjusted, and provides support for machining fixtures and public buildings.

A method for applying an adjustable platform for machining a gasket is implemented according to the following steps:

1) fastening the lower plate of the adjustable platform and the machining bed through bolts to ensure that the positioning block is inserted into the waist circular hole of the bed; and simultaneously, the upper plate of the adjustable platform and the gasket clamp are fastened through bolts.

2) When the gasket machining is needed, the front and the back of the gasket to be machined at four corners are preprocessed, the front and the back are machined into two arbitrary planes which are parallel to each other as much as possible, and machining allowance must be reserved for the side length size and the thickness size in the machining process.

3) According to the target and machining size of the four corners of the four-corner gasket in the drawing and the distribution condition of the long edges and the short edges of the four-corner gasket, the machined plane is used as a reference surface, the reference surface faces downwards, and the gasket is clamped on the clamping fixture.

4) Measuring the actual height of four corners of the gasket, converting the height of the four corners after adjustment according to the actual distance between the marine equipment and the base and the target machining size, wherein the height deviation delta 1/[ delta ] 2/A3/A4 of the theoretical adjacent edges is calculated according to the axioms delta 1= [ delta ] 3, [ delta ] 2= [ delta ] 4, the deviation delta 5/[ delta ] 6/[ delta ] 7/A8 of the actual adjacent edges of the height of the four corners is calculated according to the axioms delta 5= [ delta ] 7, [ delta ] 6= [ delta ] 8; and the deviation height of the adjacent edges is converted into the number of turns of the adjusting bolt 7 required to rotate.

5) Firstly, coarsely adjusting the adjustable platform according to the converted number of turns, and preliminarily adjusting the inclination of the adjustable platform by rotating the adjusting bolts 7 in two directions.

6) Erecting a dial indicator, measuring the deviation condition of adjacent edges, and rotating the adjusting bolt 7 until the deviation is completely consistent with the target requirement according to the measurement deviation of the dial indicator, so that the inclination adjustment is finished.

7) Determining the removal allowance value of the milling cutter according to the deviation of the actual height and the theoretical height of the wide angle of the four-corner gasket; it should be noted that the machining removal margin should be determined to be 0.1mm by taking the grinding margin of the device mounting pad into full consideration.

The adjustable platform is additionally arranged between the clamp and the machining lathe, so that the workpiece is clamped firstly, and then the inclination to be machined of the workpiece is uniformly adjusted through the high-precision mechanical device, and the problems of poor machining precision and low efficiency of the traditional marine gasket machining machine are solved. The adjustable platform is used for adjusting the inclination of the gasket, so that the gasket can be clamped firstly and then adjusted, the adjustment precision is greatly improved, and the adjustment deviation caused by clamping is avoided; the adjustable platform has a self-locking function, can provide excellent rigid support for the clamp and the gasket, and avoids the problem of inclination movement; the adjustable platform can realize the accurate adjustment of 0.02mm level by the calculation method provided by the patent, and has high adjustment accuracy; the adjustable platform device is simple and convenient to operate, high in adjusting efficiency and capable of improving the overall efficiency of gasket machining; the device has the advantages of low cost, delicate structure and strong popularization. Compared with the conventional gasket machine, the minimum grinding allowance is usually 0.3mm, the grinding allowance can be kept to be 0.1mm after the adjustable platform and the method are adopted for machining, and the grinding efficiency of the gasket in the installation process of equipment is improved. The gasket machining device is suitable for being applied as a gasket machining device.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of structure A-A of the present invention;

FIG. 3 is a front view of the middle plate;

FIG. 4 is a cross-sectional side view of the midplate;

FIG. 5 is a rear view of the middle plate;

FIG. 6 is a front view of the upper plate;

FIG. 7 is a top plan view of the upper plate;

FIG. 8 is a top side sectional view;

FIG. 9 is a rear view of the upper plate;

FIG. 10 is a front view of the lower plate;

FIG. 11 is a top view of the lower plate;

FIG. 12 is a sectional view of the lower plate;

FIG. 13 is a rear view of the lower plate;

FIG. 14 is a top sectional view of a rear view of the lower plate;

FIG. 15 is a front view of the hinge;

FIG. 16 is a side sectional view of a hinge;

FIG. 17 is a front view of the baffle;

FIG. 18 is a side sectional view of the baffle;

FIG. 19 is a front view of the channel block;

FIG. 20 is a side sectional view of a guide channel block;

FIG. 21 is a front view of the adjusting bolt;

FIG. 22 is a cross-sectional view of the lower bearing seat;

FIG. 23 is a sectional view of the upper bearing seat;

FIG. 24 is a side view of the adjustment block;

FIG. 25 is a front sectional view of the adjustment block;

FIG. 26 is a front sectional view of a restriction block;

FIG. 27 is a top view of a stop block;

FIG. 28 is a front view of the locating block;

fig. 29 is a side view of the locating block.

In the figure: 1. the bearing comprises a middle plate, 2. an upper plate, 3. a lower plate, 4. a hinge, 5. a baffle, 6. a guide groove block, 7. an adjusting bolt, 8. a bearing lower seat, 9. a bearing upper seat, 10. an adjusting slide block, 11. a limiting block, 12. a positioning block, 13. a bearing and 14. a pushing connecting column.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in the figure, the adjustable platform for machining the gasket mainly comprises a middle plate 1, an upper plate 2, a lower plate 3, a hinge 4, a baffle 5, a guide groove block 6, an adjusting bolt 7, a bearing lower seat 8, a bearing upper seat 9, an adjusting slide block 10, a limiting block 11, a positioning block 12, a bearing 13 and a pushing connecting column 14.

The middle plate 1 is respectively connected with the upper plate 2 and the lower plate 3 through four hinges 4 and four bearings 13, wherein each hinge 4 is connected with the middle plate 1 through four bolts so as to realize the opening and closing of the upper plate 2 on the middle plate 1 and the opening and closing of the middle plate 1 and the upper plate 2 on the lower plate 3, thereby realizing the inclination adjustment.

The upper plate 2 is provided with two pincerlike openings for connecting the gasket fixture; the lower plate 3 is also provided with two pincerlike openings for connecting a machining bed; the positioning blocks 12 are connected to the kidney-shaped blind holes of the lower plates 3, the protruding parts of the positioning blocks 12 are inserted into the kidney-shaped blind holes of the bed, the direction of the adjustable platform is ensured to be fixed, and two positioning blocks 12 are arranged on each lower plate 3, so that the adjustable platform and the bed and the adjustable platform and the gasket clamp are fixed.

The number of the baffle plates 5 is two, one baffle plate is connected with the lower plate 3 through four bolts, and the other baffle plate is connected with the middle plate 1 through four bolts.

The number of the adjusting bolts 7 is two, one of the adjusting bolts 7 is used for adjusting the opening and closing of the upper plate 2 on the middle plate 1, and the other adjusting bolt 7 is used for adjusting the opening and closing of the middle plate 1 and the upper plate 2 on the lower plate 3.

The threaded part of the adjusting bolt 7 penetrates through a threaded hole in the baffle 5 in a direction from the ball head to the inside of the adjustable platform, the lower bearing seat 8 and the upper bearing seat 9 are wrapped on the ball head of the adjusting bolt 7 and connected with the adjusting slide block 10, wherein the external thread of the upper bearing seat 9 is connected with the internal thread of the end of the adjusting slide block 10, and the ball head of the adjusting bolt 7 and the lower bearing seat 8 are wrapped in the adjusting slide block 10.

The adjusting slide block 10 is connected with the two guide groove blocks 6 through the pushing connecting column 14, and the pushing connecting column 14 can slide in the oblique direction of the oval hole on the guide groove block 6; the two guide groove blocks 6 are respectively arranged at the left side and the right side of the adjusting slide block 10 to form a guide groove capable of sliding obliquely; when the adjusting bolt 7 is rotated, the ball head of the adjusting bolt 7 pushes the adjusting slide block 10, the pushing connecting column 14 connected with the adjusting slide block 10 slides on the guide groove blocks 6 in a sliding groove oblique manner, and the two guide groove blocks 6 are jacked up; therefore, the guide groove block 6, the adjusting slide block 10 and the pushing connecting column 14 form a jacking unit.

Two bolt holes are respectively arranged on the two guide groove blocks 6 of the jacking unit, and the two guide groove blocks are connected with the upper plate 2 and the middle plate 1 through countersunk bolts, so that the guide groove blocks 6 are connected with the upper plate 2 and the middle plate 1; two bolt holes are formed in an adjusting sliding block 10 of the jacking unit, and the two bolt holes are connected with the middle plate 1 and the lower plate 3 through two countersunk bolts respectively, so that the adjusting sliding block 10 is connected with the middle plate 1 and the lower plate 3; the pushing connecting column 14 is fixedly connected with the adjusting slide block 10 through a countersunk jackscrew.

The adjustable platform comprises two jacking units which respectively jack up the upper plate 2, the lower plate 3 and the middle plate 1 to realize the adjustment of the inclination in two directions; taking the jacking unit for jacking the upper plate 2 as an example, the adjusting slide 10 of the jacking unit is fixed with the middle plate 1, and the guide groove block 6 of the jacking unit is connected and fixed with the upper plate 2; when the adjusting bolt 7 is rotated, the ball head on the adjusting bolt 7 pushes the adjusting slide block 10, the adjusting slide block 10 and the pushing connecting column 14 on the adjusting slide block 10 and the guide groove block 6 generate relative movement, the upper plate 2 is jacked up, and the inclination is increased; when the adjusting bolt 7 is rotated reversely, the upper plate 2 falls back, and the inclination is reduced; another adjusting unit for jacking up the lower plate 3 and the middle plate 1 is not described in detail.

The bearing lower seat 8 and the bearing upper seat 9 are made of copper materials, and the rest are made of carbon steel materials; the internal spherical surface sphericity of the ball head of the adjusting bolt 7, the lower bearing seat 8 and the upper bearing seat 9 is 0.02, so that full contact is ensured.

The jacking unit is similar to a lead screw guide rail, so that the self-locking device has excellent self-locking performance, ensures that the inclination of the adjustable platform is always fixed and unchanged after one inclination is adjusted, and provides support for machining fixtures and public buildings.

A method for applying an adjustable platform for machining a gasket is implemented according to the following steps:

1) fastening the lower plate 3 of the adjustable platform with a machining bed through bolts to ensure that the positioning block 12 is inserted into the waist circular hole of the bed; and simultaneously, the adjustable platform upper plate 2 and the gasket clamp are fastened through bolts.

2) When the gasket machining is needed, the front and the back of the gasket to be machined at four corners are preprocessed, the front and the back are machined into two arbitrary planes which are parallel to each other as much as possible, and machining allowance must be reserved for the side length size and the thickness size in the machining process.

3) According to the target and machining size of the four corners of the four-corner gasket in the drawing and the distribution condition of the long edges and the short edges of the four-corner gasket, the machined plane is used as a reference surface, the reference surface faces downwards, and the gasket is clamped on the clamping fixture.

4) Measuring the actual height of four corners of the gasket, converting the height of the four corners after adjustment according to the actual distance between the marine equipment and the base and the target machining size, wherein the height deviation delta 1/[ delta ] 2/A3/A4 of the theoretical adjacent edges is calculated according to the axioms delta 1= [ delta ] 3, [ delta ] 2= [ delta ] 4, the deviation delta 5/[ delta ] 6/[ delta ] 7/A8 of the actual adjacent edges of the height of the four corners is calculated according to the axioms delta 5= [ delta ] 7, [ delta ] 6= [ delta ] 8; and the deviation height of the adjacent edges is converted into the number of turns of the adjusting bolt 7 required to rotate.

5) Firstly, coarsely adjusting the adjustable platform according to the converted number of turns, and preliminarily adjusting the inclination of the adjustable platform by rotating the adjusting bolts 7 in two directions.

6) Erecting a dial indicator, measuring the deviation condition of adjacent edges, and rotating the adjusting bolt 7 until the deviation is completely consistent with the target requirement according to the measurement deviation of the dial indicator, so that the inclination adjustment is finished.

7) Determining the removal allowance value of the milling cutter according to the deviation of the actual height and the theoretical height of the wide angle of the four-corner gasket; it should be noted that the machining removal margin should be determined to be 0.1mm by taking the grinding margin of the device mounting pad into full consideration.

The working principle of the invention is as follows:

an adjustable platform for machining a gasket and a method thereof are provided, wherein an adjustable platform is additionally arranged between a clamp and a machining lathe, a workpiece is clamped firstly, then the inclination to be machined of the workpiece is uniformly adjusted through a high-precision mechanical device, and the problems of poor machining precision and low efficiency of the traditional marine gasket machining are solved. The effects and benefits are as follows: the inclination of the gasket is adjusted through the adjustable platform, the gasket can be clamped firstly and then adjusted, the adjustment precision is greatly improved, and the adjustment deviation caused by clamping is avoided; the adjustable platform has a self-locking function, can provide excellent rigid support for the clamp and the gasket, and does not have the problem of inclination movement; the adjustable platform can realize the accurate adjustment of 0.01mm grade by the calculation method provided by the patent, the adjustment precision is high, the adjustable platform device is simple and convenient to operate, the adjustment efficiency is high, and the overall efficiency of gasket processing is improved; the device has low cost, delicate structure and strong popularization.

The specific embodiment is as follows:

assuming that the actual heights of the four corners are all 15mm after rough machining and leveling on the front and the back surfaces, the long sides are 160mm, the short sides are 125mm, and the heights of the target four corners are 14.58mm/13.92mm/12.76mm/13.42 mm.

1) Based on the actual and target dimensions of the quad pad, Δ 1 =: =0.66mm, =: =1.16mm, = 5= Δ 7=0, Δ 6= Δ 8=0.

2) And (4) correctly clamping the four-corner gasket according to the conditions of the long and short sides and the large and small corners. Here the large angle is 14.58mm and the small angle is 12.76 mm.

3) The two adjustments are not in sequence, here for example by first adjusting the 0.66mm offset, 7 adjustment bolt turns S =0.66/0.1 a W that need to be rotated. Wherein A is the side length, where 0.66 corresponds to 160mm of the long side, and W is a coefficient related to the pitch; here, the thread pitch is 1.75mm per turn, the increase is 0.16mm per 100mm length and the increase is 0.016mm per 10mm length. So here W =0.016, S1=2.57 turns; deviation in the other direction requires a number of rotations S2, where S1 may take 2.6 rotations.

4) And (3) roughly adjusting the inclination and then rotating to adjust the inclination, erecting a dial indicator at the moment, measuring the inclination deviation of the long side and the short side, and accurately rotating 7 adjusting bolts according to the actual deviation and the target deviation until the difference completely accords with the target deviation.

5) Determining machining amount of 15-14.58 =0.42mm according to actual heights of four corners, wherein the four corners are all 15 mm; and the grinding allowance is increased by 0.1mm, and the final milling amount is 0.32 mm.

6) And finishing the whole process.

7) It should be noted that, when the actual heights of the four corners are not completely equal, the deviation amount Δ =Δtarget deviation ±. Δ actual deviation of final adjustment; when the actual altitude is small, the calculation formula is addition, and when the actual altitude is small, the calculation formula is subtraction.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.