CN111571336A

CN111571336A - Surface grinding machine and numerical control four-corner base plate machining device thereof

Info

Publication number: CN111571336A
Application number: CN202010343169.2A
Authority: CN
Inventors: 曾志强; 曾凡昌; 齐保田; 杨恒旭; 李飞; 方明; 蔡世凯
Original assignee: Wuchang Shipbuilding Industry Group Co Ltd
Current assignee: Wuchang Shipbuilding Industry Group Co Ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2020-08-25
Anticipated expiration: 2040-04-27
Also published as: CN111571336B

Abstract

The embodiment of the invention discloses a surface grinder and a numerical control four-corner base plate processing device thereof, wherein the device comprises: the bottom plate is fixedly arranged on a workbench of the surface grinding machine; the workpiece to be processed is arranged on the mother board through a positioning assembly; the lifting assemblies are four groups, the fixed end of each lifting assembly is fixedly connected to the mother board, the movable end of each lifting assembly is arranged on the bottom plate, and the mounting positions of the movable ends correspond to the four corners of the workpiece to be processed one by one. The technical problems that the four-corner base plate is difficult to process and the relative height at each position is difficult to adjust in the prior art are solved.

Description

Surface grinding machine and numerical control four-corner base plate machining device thereof

Technical Field

The embodiment of the invention relates to the technical field of numerical control machining, in particular to a numerical control four-corner base plate machining device.

Background

In the prior art, if no auxiliary tool for processing the four-corner base plate is arranged, the four-corner base plate cannot be processed even if a multi-shaft high-precision surface grinding machine is selected. In the prior art, a simple auxiliary tool for processing the four-corner base plate is usually adopted, and the four-corner base plate is processed on a common plane grinder. The processing method for processing the four-corner base plate has two problems, the 1 st problem is that the height value needing to be adjusted cannot be determined in a manual adjustment mode, the adjustment difficulty is high, and the mode of repeatedly adjusting for many times is needed. The 2 nd problem is that when the specification variety of four corners backing plate is very much, support the setpoint on corresponding to simple and easy four corners backing plate processing auxiliary fixtures just very much, and a simple and easy four corners backing plate processing auxiliary fixtures just is not enough, just needs to have many simple and easy four corners backing plate processing auxiliary fixtures.

The four corners of the surface grinding machine cannot be machined due to the difficulty in locating the four corners, and particularly when the machining precision requirement is high, the surface grinding machine cannot meet the machining requirement. If the levelness is adjusted in a manual adjustment mode, the height value needing to be adjusted cannot be determined, and the dial indicator arranged on the grinding machine is used for measuring whether the adjustment heights of opposite angles are consistent or not through a repeated adjustment mode, so that the adjustment difficulty is high.

Disclosure of Invention

Therefore, the embodiment of the invention provides a surface grinding machine and a numerical control four-corner base plate processing device thereof, which can quickly determine the spatial positioning position of the four-corner base plate so as to solve the technical problems that the spatial positioning of the four-corner base plate is very difficult and the spatial height of the four-corner base plate is difficult to adjust in the prior art. Meanwhile, the processing requirement of the four-corner base plate with various specifications can be met conveniently.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:

a numerical control four-angle backing plate processing device for a surface grinding machine comprises:

the bottom plate is fixedly arranged on a workbench of the surface grinding machine;

the workpiece to be processed is arranged on the mother board through a positioning assembly;

the lifting assemblies are four groups, the fixed ends of the lifting assemblies are fixedly connected to the mother board, the movable ends of the lifting assemblies are arranged on the bottom plate, the mounting positions of the movable ends correspond to the four corners of the workpiece to be machined one by one, and the lifting assemblies adjust the lifting heights of the movable ends of the lifting assemblies according to instructions sent by an electric control platform of the surface grinding machine.

Further, the lifting assembly comprises:

the servo motor is electrically connected with the electric control platform;

one end of the lifting platform is fixedly connected with the bottom plate, the other end of the lifting platform is rotatably connected with the mother plate, and the servo motor is in transmission connection with the lifting platform.

Further, the lifting assembly further comprises a ball hinge, and the lifting table is rotatably connected with the mother board through the ball hinge.

Furthermore, the lifting assembly further comprises a locking nut, and when the lifting platform rotates to a preset position relative to the mother board, the lifting platform is fixed on the mother board through the locking nut.

Further, the lifting assembly further comprises a synchronous belt, and the servo motor is in transmission connection with the lifting platform through the synchronous belt.

Further, the elevating platform comprises:

the synchronous belt wheel is in transmission connection with the synchronous belt;

the ball screw is connected with the synchronous pulley key and is axially locked with a thread on the ball screw through a locking nut, and the ball screw is connected with a ball screw nut in a rolling way;

the inner cylinder is rotationally connected with the ball screw through a bearing;

the outer cylinder is fixedly connected with the inner cylinder, and a flange step fixedly connected with the bottom plate is arranged on the outer cylinder;

the lifting cylinder is fixedly connected with the ball screw, the lifting cylinder is axially and slidably arranged between the inner cylinder and the outer cylinder, and the top of the lifting cylinder is fixedly connected with the ball hinge;

the lifting cylinder limiting screw is in threaded connection with the outer cylinder, and the lifting cylinder limiting screw extends into a limiting groove formed in the lifting cylinder.

Furthermore, the machining device also comprises a workpiece positioning support, wherein one end of the workpiece positioning support is fixed on the motherboard, and the other end of the workpiece positioning support is provided with a ball head structure for supporting the workpiece to be machined.

Further, the positioning assembly comprises:

the lower part of the workpiece positioning plate is in threaded connection with the motherboard;

and the positioning screw is arranged on the upper part of the workpiece positioning plate and is abutted and clamped with the workpiece to be processed.

Further, still include the protection casing, the protection casing set up in the mother board with between the bottom plate to the cover is located the lifting unit periphery.

A numerical control four-angle base plate processing device is characterized in that when a servo motor is stationary, four hinge nodes Ax, By, Dz, CR and four sphere centers in a numerical control lifting system form a space rigid truss structure, and each node of the space rigid truss structure is in a constraint state, so that a mother plate 14 is in a complete constraint state, movement and rotation deviation cannot occur, and the numerical control four-angle base plate processing device has good stability and locking precision.

Because the mother plate 14 of the numerical control four-corner base plate processing device is in a complete constraint state, single-shaft operation is not allowed, 3 shafts are not allowed to operate, and 4 shafts must synchronously lift in the same direction. The two shafts can have opposite diagonal synchronous motion directions, and the method can be suitable for the geometric characteristics of the symmetry of the four-corner base plates.

According to the motion state requirement of the numerical control four-corner base plate processing device, the lifting platform cannot be lifted manually and must be lifted in a numerical control mode, 4 shafts must be lifted synchronously in the same direction or two shafts can be moved synchronously and reversely in opposite angles, so the numerical control four-corner base plate processing device must be provided with an electric control platform with numerical control requirement.

When the length or the width of the four-corner base plate is inconsistent with the distance between the four supporting points of the numerical control four-corner base plate processing device, the supporting height corresponding to each corner of the four-corner base plate is different from the height of the four supporting points of the numerical control four-corner base plate processing device. In order to solve the problem, the four-corner base plate ABCD with the length of a and the width of b needs to be converted into the thickness of the four corners of the square four-corner base plate with the side length of a; and then the square four-corner base plate with the side length of a is converted into the thickness of a square lifting base plate with the distance of L from four supporting points of the numerical control four-corner base plate processing device. After the figure of four corners backing plate is converted many times, know thickness and length and the width at four angles of the four corners backing plate of processing, just can convert the height that four supporting points of numerical control four corners backing plate processingequipment go up and down to, directly input these parameters of knowing (thickness and length an and width b at four angles) into numerical control system just can accomplish the height position of control crane, realize the function of grinding four corners backing plate, it is very convenient. The pattern of the four-corner base plate is repeatedly converted into the thickness of a square base plate with the distances L from four supporting points of the numerical control four-corner base plate processing device, the lifting height of the four supporting points of the numerical control four-corner base plate processing device can be converted, and the lifting is completed by the electric control platform 1.

And the output end of the electric control platform 1 is connected with a servo motor on the lifting assembly through a cable, and the input end of the electric control platform 1 is connected with a power supply through a cable. The electric control console 1 is composed of an input unit module, a modeling calculation transformation middle unit module and an output unit module.

The electric control console 1 modeling calculation transformation intermediate unit module is composed of a modeling module, a processing calculation module and a model transformation module 3 modules.

The input unit module of the electric console 1 receives the processing data information of the four-corner base plate, stores, identifies and arranges the data information, and transmits the arranged data to the modeling module of the modeling calculation transformation intermediate unit module.

The modeling module is used for receiving the processing data information of the four-corner base plate, sorting the processing data information, identifying, classifying and building a corresponding mathematical model according to the sorted data, and transmitting the data of the mathematical model to the processing and calculating module.

And the processing and calculating module receives the mathematical model data transmitted by the modeling module, processes and calculates the mathematical model data, and transmits the calculation data to the model transformation module.

The model transformation module receives the calculation data of the processing calculation module, identifies and classifies the calculation data, performs model transformation calculation, determines the spatial positioning positions of four corners of the processed four-corner base plate workpiece according to the transformation calculation data, and transmits the transformation calculation data to the output unit module.

The output unit module receives the transformation calculation data sent by the model transformation module of the modeling calculation transformation intermediate unit and transforms the transformation calculation data into output data capable of driving a servo motor to operate, the output unit module transmits a data block subjected to data processing to the servo motor on the lifting assembly through a connecting line, and the servo motor automatically adjusts the accurate position determined by the space of the four corner base plates according to the output instruction data of the output unit module of the electric control platform, so that the positioning of the unique position of the space is automatically realized.

The invention also provides a surface grinding machine which comprises a workbench, an electric control table and the four-corner base plate machining auxiliary tool.

The device for processing the numerical control four-corner base plate can convert any height needing to be adjusted in an X-Y plane into the lifting height of the corresponding lifting assembly, so that the processing and grinding work of the four-corner base plates with different sizes can be conveniently realized, almost no adjustment is needed, the parameters of the four-corner base plate are input into the numerical control system device and can automatically reach the corresponding spatial position at one time, a large amount of time consumed by the difficulty of manual adjustment of the four-corner base plate is greatly reduced, the processing precision of a product is improved, the problem of numerical control linkage processing of the four-corner base plate is realized, and the problem that the four-corner base plate cannot be processed by a surface grinder is solved. The processing efficiency of processing four corners backing plate has been improved greatly, has alleviateed workman's intensity of labour, has realized the regulation automation. Therefore, the technical problems that the four-corner base plate is difficult to process and the relative height at each position is difficult to adjust in the prior art are solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

Fig. 1 is a schematic structural diagram of a specific embodiment of the auxiliary tool for processing the four-corner base plate provided by the invention;

fig. 2 is a schematic structural view of a lifting table in the auxiliary tool for processing the four-corner base plate shown in fig. 1;

FIGS. 3 and 4 are schematic structural views of a quadrangular base plate to be processed;

FIG. 5 is a schematic cross-sectional view of the diagonal line AC of the four corner pad shown in FIG. 4;

FIG. 6 is a schematic cross-sectional view of the diagonal BD of the four corner pad shown in FIG. 4;

FIG. 7 is a schematic diagram of the adjustment of the pivot swing of the diagonal BD of the four corner pad shown in FIG. 6;

FIG. 8 is a schematic diagram of the adjustment of the angular pad diagonal AC pivot swing shown in FIG. 6;

FIGS. 9 and 10 are schematic views showing the relationship between the square rectangular pad and the multiple supporting squares;

fig. 11 and 12 are schematic diagrams of the adjustment relationship between the rectangular quadrangular base plate and the plurality of supporting squares.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. 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.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a numerical control four-corner backing plate processing device provided in the present invention.

In a specific embodiment, the numerical control four-corner base plate processing device provided by the invention is used for a process of processing the four-corner base plate by a surface grinding machine, and is particularly used for accurately positioning and adjusting the spatial position when the four-corner base plate is processed by using a numerical control system of an electric control table. The device comprises a bottom plate, a mother plate and lifting components, wherein the bottom plate is fixedly installed on a workbench of the surface grinding machine, workpieces to be processed are installed on the mother plate through positioning components, the lifting components are four groups, fixed ends of the lifting components are fixedly connected to the mother plate, movable ends of the lifting components are respectively arranged on the bottom plate, the mounting positions of the movable ends are in one-to-one correspondence with four corners of the workpieces to be processed, an electric control platform 1 is arranged, an output end of the electric control platform 1 is connected with a servo motor on the lifting components through a cable, and an input end of the electric control platform 1 is connected with a power supply through a cable. The electric console 1 comprises an input unit module, a modeling calculation conversion intermediate unit module and an output unit module, wherein the input unit module of the electric console 1 receives processing data information, the input unit module transmits the received information to the modeling calculation conversion unit module for modeling calculation conversion, the intermediate unit module transmits the processed data to the output unit module, and the output unit module transmits the data blocks after data processing to a servo motor on the lifting assembly through a connecting line, so that the positioning of the spatial unique position is automatically realized.

Specifically, this lifting unit includes servo motor and elevating platform, wherein, servo motor with automatically controlled platform electricity is connected, the one end of elevating platform with bottom plate fixed connection, the other end of elevating platform with mother board rotatable coupling, servo motor with the elevating platform transmission is connected. Theoretically, the lifting assembly can also adopt the forms such as oil cylinder or cylinder, compare in other modes, the servo motor that this application adopted and elevating platform complex structure can show and improve the adjustment accuracy, is applicable to more in the higher grinding machine processing of precision.

In order to improve the adjustment flexibility between the lifting platform and the template, the lifting assembly further comprises a ball hinge, and the lifting platform is rotatably connected with the mother board through the ball hinge; therefore, in the working process, the lifting platform can rotate relative to the mother board while lifting, and the clamping stagnation in the lifting process is avoided.

The lifting assembly further comprises a locking nut, and when the lifting platform rotates to a preset position relative to the mother board, the mother board is fixed through the locking nut, so that after the height adjustment is completed, the template and the lifting platform can be locked, and the height stability is guaranteed.

Specifically, lifting unit still includes the hold-in range, servo motor passes through the hold-in range with the elevating platform transmission is connected, and the mode that adopts the hold-in range realizes that servo motor is connected with the transmission of elevating platform and makes the transmission process more steady.

It should be understood that the four sets of lifting assemblies have the same structure, and specifically, in this embodiment, as shown in fig. 1, the four sets of lifting assemblies are respectively an X-axis lifting system, a Y-axis lifting system, a Z-axis lifting system and an R-axis lifting system, and are matched with the X-axis lifting system, the Y-axis lifting system, the Z-axis lifting system and the R-axis lifting system, the servo motors include an X-axis servo motor, a Y-axis servo motor, a Z-axis servo motor and an R-axis servo motor, and the lifting table includes an X-axis lifting table, a Y-axis lifting table, a Z-axis; similarly, all other components included in the lifting assembly are four sets, namely, an X-axis, a Y-axis, a Z-axis and an R-axis, which should be understood by those skilled in the art, and therefore, will be directly described below without further explanation.

In this embodiment, the X-axis lifting system includes an X-axis servo motor 26, an X-axis lifting table 24, an X-axis ball hinge 27, an X-axis motherboard lock nut 23, an X-axis synchronous belt 25, and the like; the Y-axis lifting system comprises a Y-axis servo motor 6, a Y-axis lifting table 10, a Y-axis ball hinge 11, a Y-axis mother board locking nut 12, a Y-axis synchronous belt 5 and the like; the Z-axis lifting system comprises a Z-axis servo motor 31, a Z-axis lifting table 29, a Z-axis ball hinge 28, a Z-axis mother board locking nut 22, a Z-axis synchronous belt 30 and the like; the R-axis lifting system comprises an R-axis servo motor 4, an R-axis lifting platform 9, an R-axis ball hinge 7, an R-axis mother board locking nut 13, an R-axis synchronous belt 8 and the like.

The electric console 1 of the surface grinding machine is electrically connected with the X-axis servo motor 26, the Y-axis servo motor 6, the Z-axis servo motor 31 and the R-axis servo motor 4 through cables, so that the operation of the four servo motors is controlled by the numerical control system. The bottom plate 32 is fixedly connected with the workbench 3, the X-axis servo motor 26 and the X-axis lifting platform 24 are fixedly connected with the bottom plate 32, one end of the X-axis ball hinge 27 is connected with the X-axis lifting platform 24, the other end of the X-axis ball hinge is fixedly connected with the motherboard 14 through the X-axis motherboard locking nut 23, the X-axis servo motor 26 is in transmission connection with the X-axis lifting platform 24 through the X-axis synchronous belt 25, and therefore lifting of the X-axis lifting platform 24 is achieved through a lifting instruction of the electric console 1. Y axle servo motor 6 and Y axle elevating platform 10 all with bottom plate 32 fixed connection, the one end and the Y axle elevating platform 10 of Y axle ball hinge 11 are connected, the other end passes through Y axle mother board lock nut 12 and mother board 14 fixed connection, Y axle servo motor 6 is connected with Y axle elevating platform 10 transmission through Y axle hold-in range 5 to realize the high lift of Y axle elevating platform 10 through automatically controlled platform 1. Z-axis servo motor 31 and Z-axis elevating platform 29 are both fixedly connected with bottom plate 32, one end of Z-axis ball hinge 28 is connected with Z-axis elevating platform 29, the other end is fixedly connected with mother plate 14 through Z-axis mother plate locking nut 22, Z-axis servo motor 31 is connected with Z-axis elevating platform 29 through Z-axis synchronous belt 30 in a transmission manner, so that the height of Z-axis elevating platform 29 can be lifted through electric console 1. R axle servo motor 4 and R axle elevating platform 9 all with bottom plate 32 fixed connection, the one end of R axle ball hinge 7 is connected with R axle elevating platform 9, the other end passes through R axle mother board lock nut 13 and mother board 14 fixed connection, R axle servo motor 4 is connected with R axle elevating platform 9 transmission through R axle hold-in range 8 to realize the high lift of R axle elevating platform 9 through electric control platform 1.

Specifically, the lifting platform is in transmission connection with a servo motor in a belt transmission mode and comprises a synchronous belt pulley and a ball screw. The synchronous belt pulley is in transmission connection with the synchronous belt, the ball screw is in key connection with the synchronous belt pulley and is axially locked with a thread on the ball screw through a locking nut, and the ball screw is in rolling connection with a ball screw nut; the inner cylinder is rotationally connected with the ball screw through a bearing; the outer cylinder is fixedly connected with the inner cylinder, and a flange step fixedly connected with the bottom plate is arranged on the outer cylinder; the lifting cylinder is fixedly connected with the ball screw, the lifting cylinder is axially and slidably arranged between the inner cylinder and the outer cylinder, and the top of the lifting cylinder is fixedly connected with the ball hinge; the lifting cylinder limiting screw is in threaded connection with the outer cylinder, and the lifting cylinder limiting screw extends into a limiting groove formed in the lifting cylinder.

In this embodiment, taking the example where four sets of lifting components are an X-axis lifting system, a Y-axis lifting system, a Z-axis lifting system, and an R-axis lifting system, respectively, it should be understood that the lifting tables include an X-axis lifting table for the X-axis lifting system, a Y-axis lifting table for the Y-axis lifting system, a Z-axis lifting table for the Z-axis lifting system, and an R-axis lifting table for the R-axis lifting system, and the structures of the X-axis lifting table, the Y-axis lifting table, the Z-axis lifting table, and the R-axis lifting table are the same, so that the following detailed description of the lifting tables is common to the X-axis lifting table, the Y-axis lifting table, the Z-axis lifting table, and the R-axis lifting table.

Specifically, as shown in fig. 2, the lift table includes a timing pulley 37, an inner cylinder connection screw 38, an outer cylinder 39, an inner cylinder 40, a lift cylinder limit screw 41, a bearing cap 42, a bearing cap connection screw 43, a lift cylinder 44, a connection pin 45, a ball screw 46, a ball screw 47, a bearing 48, a key 49, and a lock nut 50. Wherein, the synchronous pulley 37 is circumferentially fixed with the ball screw 46 through a key 49 and locked with the lock nut 50 through a thread on the ball screw 46 to realize axial positioning; the inner race of the bearing 48 is fitted with the journal of the ball screw 46, and the outer race of the bearing 48 is fitted with the bearing hole ring of the inner cylinder 40. The axial positioning of the lower end inner ring of the bearing 48 is realized by the ball screw 46 shaft shoulder, the axial positioning of the lower end outer ring of the bearing 48 is realized by the inner barrel 40 step, the axial positioning of the upper end inner ring of the bearing 48 is realized by the ball screw 46 shaft shoulder, the axial positioning of the upper end outer ring of the bearing 48 is realized by the bearing cover 42, and the bearing cover 42 is connected with the inner barrel 40 by the bearing cover connecting screw 43. The ball screw 47 is connected with the ball screw 46 in a rolling way, the ball screw 47 is connected with the lifting cylinder 44 through a connecting pin 45, the inner cylinder 40 is connected with the outer cylinder 39 through an inner cylinder connecting screw 38, and the lifting cylinder 44 is in sliding fit with the outer cylinder 39 and the inner cylinder 40. The lifting cylinder limiting screw 41 is in threaded connection with the outer cylinder 39, and the lifting cylinder limiting screw 41 extends into a high-low groove of the lifting cylinder 44 to play a role in limiting the lifting of the lifting cylinder 44. The flange step of the outer cylinder 39 is positioned with the hole of the bottom plate 32, and the flange hole of the outer cylinder 39 is connected with the threaded hole of the bottom plate 32 corresponding to the flange hole of the outer cylinder 39 through a connecting bolt; the threaded holes at the top of the lifting cylinder 44 are connected with ball hinges (an X-axis ball hinge 27, a Y-axis ball hinge 11, a Z-axis ball hinge 28 and an R-axis ball hinge 7) of corresponding shafts through connecting bolts.

In the working process, a servo motor (such as an X-axis servo motor 26) drives a synchronous pulley 37 to rotate through synchronous belt transmission (such as an X-axis synchronous belt 25), the synchronous pulley 37 is connected with a ball screw 46 through a key 49 to drive a ball screw 46 installed on a bearing 48 to rotate, the ball screw 46 rotates to drive a ball screw 47 to move up and down, the ball screw 47 moves up and down to enable a lifting cylinder 44 to move up and down through connection of a connecting pin 45 and the lifting cylinder 44, when the lifting cylinder 44 moves up, the lifting cylinder limiting screw is in threaded connection with an outer cylinder 39 and is in contact with a lower groove in the lifting cylinder 44, so that the highest stroke effect of the lifting cylinder is limited, and when the lifting cylinder 44 moves down, the lifting cylinder limiting screw is in threaded connection with the outer cylinder 39 and is in contact with an upper groove in the lifting cylinder 44, so that the lowest stroke effect of the lifting cylinder.

In the working process, after the height of each part of the workpiece is properly adjusted or in the adjusting process, the supporting stability of the workpiece needs to be ensured, so that the tool further comprises a workpiece positioning support, one end of the workpiece positioning support is fixed on the mother board, the other end of the workpiece positioning support is provided with a ball head structure for supporting the workpiece to be processed, and the ball head structure of the workpiece positioning support 21 is used for supporting the workpiece to be processed 20 so as to ensure the supporting safety through smooth connection and avoid scratching the workpiece.

Specifically, the positioning assembly comprises a workpiece positioning plate and a positioning screw, the lower portion of the workpiece positioning plate is in threaded connection with the motherboard, and the positioning screw is arranged on the upper portion of the workpiece positioning plate and is abutted and clamped with the workpiece to be machined. The lower part of the workpiece positioning support 21 is in a threaded structure and is fixedly connected with the motherboard 14 in a threaded connection mode, the lower part of the workpiece positioning plate 15 is fixed with the motherboard 14 in a threaded connection mode, and the upper part of the workpiece positioning plate 15 is provided with a threaded hole for screwing with a positioning screw 16 so as to be positioned and clamped in the x _ y plane by the abutting of the positioning screw against the workpiece 20 to be processed.

Further, this frock still includes the protection casing, the protection casing set up in between the motherboard with the bottom plate to the cover is located the lifting unit periphery. The shield 34 is connected to the motherboard 14, the X-axis elevating stage 24, the Y-axis elevating stage 10, the Z-axis elevating stage 29, and the R-axis elevating stage 9, and functions to prevent the coolant from leaking into the motor, and the shield 34 is connected to the bottom plate 32, and functions to prevent the coolant from leaking into the motor.

Thus, in the above embodiment, the device for machining the numerically controlled quadrangular base plate provided by the invention can convert the height of any point in the X-Y plane, which needs to be adjusted, into the height of the corresponding lifting assembly for lifting, so that the machining and grinding work of the quadrangular base plates with different sizes can be conveniently realized, the adjustment is almost not needed, the parameters of the quadrangular base plate are input into the numerical control system device and can automatically reach the corresponding spatial position at one time, a large amount of time consumed by the difficulty of manual adjustment of the quadrangular base plate is greatly reduced, the machining precision of the product is improved, the problem of machining the quadrangular base plate in a numerically controlled linkage manner is realized, and the problem that the quadrangular base plate cannot be machined by a surface grinder and a surface grinder is solved. The processing efficiency of processing four corners backing plate has been improved greatly, has alleviateed workman's intensity of labour, has realized the regulation automation. Therefore, the technical problems that the four-corner base plate is difficult to process and the relative height at each position is difficult to adjust in the prior art are solved.

Function of electric control table

The electric control platform of the numerical control four-corner base plate processing device consists of an input unit module, a modeling calculation transformation intermediate unit module and an output unit module. The electric control console has 5 functions, the first function of inputting processing data information is realized by the input unit module, namely the processing data information of the four-corner cushion plate is received, namely the length a and the width b of the four-corner cushion plate, the thickness A, B, C, D of the four corners of the four-corner cushion plate and the positioning size L of the template. And storing the processing data, classifying the processing data, and transmitting the classified data to a modeling calculation transformation intermediate unit module modeling module.

The second modeling function is realized by the modeling module, namely the modeling module receives the processed data information of the sorted and classified four-corner base plates transmitted by the input unit module, sorts the processed data information, identifies and classifies the sorted data, constructs a corresponding mathematical model and pushes the mathematical model to the calculation processing module.

And the third calculation processing function is realized by a calculation processing module to perform calculation processing on the data in the modeling module, and the data subjected to calculation processing is sent to a model transformation module.

The fourth model transformation function is implemented by a model transformation module. The model transformation module receives the calculation data of the processing calculation module, identifies and classifies the calculation data, performs model transformation calculation, determines the spatial positioning positions of four corners of the processed four-corner base plate workpiece according to the transformation calculation data, and transmits the transformation calculation data to the output unit module.

The fifth output unit module function is realized by the output unit module. The output unit module receives the transformation calculation data sent by the model transformation module of the modeling calculation transformation intermediate unit and transforms the transformation calculation data into output data capable of driving a servo motor to operate, the output unit module transmits a data block subjected to data processing to the servo motor on the lifting assembly through a connecting line, and the servo motor automatically adjusts the accurate position determined by the space of the four corner base plates according to the output instruction data of the output unit module of the electric control platform, so that the positioning of the unique position of the space is automatically realized.

The theoretical basis of the numerical control four-corner base plate processing device I and the establishment of the mathematical model of the electric control table input unit module is analyzed by combining the characteristics of the four-corner base plates

Auxiliary table with functions of identifying and classifying four-corner base plate processing data information by input unit module

Second, theoretical basis for establishing mathematical model of modeling module of electric console

(I) four-corner base plate geometric characteristic mathematical model modeling module model 1

1. In the rectangular pad shown in fig. 3, when grinding the upper and lower planes thereof, the sum of the diagonal thicknesses becomes equal, i.e., a + C is equal to B + D, according to the principle of plane geometry. And the thickness of each corner of the four-corner backing plate is not equal, namely A is not equal to B, C is not equal to D. The four-corner base plate has the following rule: the backing plate is uniformly thickened or thinned along the longitudinal direction, and the backing plate is uniformly thickened or thinned along the transverse direction.

2. Because the sum of the diagonal thicknesses of the four-corner cushion plates is equal, and the thickness of the four-corner cushion plates along the transverse direction or the longitudinal direction is uniformly thickened or thinned, the four-corner cushion plates have the following inferences:

1) the sum of the thicknesses of the opposite angles of the four-corner backing plates is equal, so that the thickness of an intersection point O of the diagonal lines of the four-corner backing plates is equal to half of the sum of the thicknesses of the opposite angles of the four-corner backing plates;

2) similarly, the half of the sum of the thicknesses of any point on the diagonal line of the four-corner base plate and another point symmetrical about the point O is equal to the thickness of the point O;

3) as shown in fig. 4 to 6, as seen in the front view and diagonal cross-sectional view of the four-corner cushion plate, Δ O1a 2 ≡ Δ O1C 2, and Δ O1B 2 ≡ Δ O1D 2; therefore, A1a2 is C1C2, B1B2 is D1D2, and the thickness difference between the diagonal thickness of the four-corner cushion plate and the diagonal intersection O is mirror symmetry with respect to the thickness point O1 of the diagonal intersection O, that is, the absolute value of the thickness difference between the diagonal thickness and the diagonal intersection O is equal;

4) in the same way, any point on the diagonal line of the four-corner base plate is symmetrical to the other point of the diagonal intersection point O, the absolute value of the thickness difference between the two points and the diagonal intersection point O is equal, and the thickness difference is mirror symmetry of the thickness point O1 of the diagonal intersection point O;

5) in the same way, at another point on the four-corner base plate, which is symmetrical to the diagonal intersection point O, the absolute value of the thickness difference between the two points and the diagonal intersection point O is equal, and the thickness difference is mirror symmetry about the thickness point O1 of the diagonal intersection point O.

6) From the geometrical properties of the symmetry of the four-corner shim plate, it is known that: when the four-corner base plate rotates diagonally, the height value of the intersection point o of the diagonal is unchanged, and the rise value of the diagonal is equal to the fall value of the diagonal.

(II) four-corner base plate diagonal rotation characteristic mathematical model modeling module model 2

1. Referring to fig. 7 and 8, the diagonal adjustment geometric cross-section of the quadrangular cushion plates is analyzed as follows, the diagonal adjustment of the quadrangular cushion plates refers to that one set of diagonal angles of the quadrangular cushion plates is taken as a rotating shaft, and the other set of diagonal angles swings around the rotating shaft to be called diagonal adjustment of the quadrangular cushion plates, which is shown in fig. 7. Wherein the content of the first and second substances,

1) mathematical model modeling module model 2-1 for diagonal adjustment when four-corner base plate is large regular quadrangle

The side length of a quadrangle formed by the four crane supports is L, the side length of a four-corner base plate is a, and the thicknesses of four corners of the four-corner base plate are A, B, C, D respectively. Assuming that when L ═ a, the analysis of the diagonal adjustment geometry cross-section for the four corner pads is as follows:

that is, the thickness of a is AA1, the thickness of B is BB1, the thickness of C is CC1, and the thickness of D is DD 1. When one side of the diagonal line of the quadrangular base plate is taken as a rotation axis (for example, the point a and the point C swing up and down around the BD axis with the diagonal line BD as the rotation axis), as shown in fig. 3: the AC section body of the four-corner base plate ABCD is ACC1A1, the point A and the point C swing up and down around a BD axis, namely a diagonal line A1C1 swings around an O1 point, namely a diagonal lifting frame A and a lifting frame C are adjusted from a position A2C2 with equal height, wherein the lifting frame at the point A must perform descending movement and is lowered from A2AE to A1AE point, and the lifting frame at the other diagonal point C must perform ascending movement from C2CE to C1CE point; and A1a2 ═ C1C2 ═ a-C)/2. The height of the point A of the four-corner base plate is equal to the height of the point C, namely the straight line AC is parallel to the AECE of the workbench;

similarly, the diagonal line AC is taken as a rotating shaft, the point B and the point D swing up and down around the AC shaft, and the diagonal crane is adjusted from an equal height position B2D2, as can be known from FIG. 7: the BD section body of the four-corner base plate ABCD is BDD1B1, wherein a B point lifting frame must perform descending movement to be reduced to a B1BE point, another diagonal D point lifting frame C1CE must perform ascending movement to a C1CE point, B1B 2-D1D 2-half of the difference between the thickness of the B point and the thickness of the D point, the height of the B point of the four-corner base plate is equal to the height of the C point, namely a straight line BD is parallel to a workbench AECE; since the line AC intersects the line BD at the point O, the plane ABCD is parallel to the table.

In summary, the principle of adjusting the height of the diagonal of the four-corner base plate is that the lifting frames must be lifted from the equal-height positions, wherein one group of diagonal lifting frames are lifted simultaneously, the absolute values of the lifting are equal, and the absolute value of the lifting is equal to half of the thickness difference of the diagonal points.

2) And a diagonal adjustment mathematical model modeling module model 2-2 when the four-corner base plate is a small square

The side length of a quadrangle formed by the four crane supports is L, the side length of a quadrangle base plate is a, and the thicknesses of four corners of the quadrangle base plate are A, B, C, D respectively. Assuming that when L > a, the analysis of the diagonal adjustment geometry section for the four corner pads is as follows: when the diagonal line XR swings about the rotation axis YZ with the diagonal line YZ as the rotation axis, as can be seen from the cross-sectional view of the diagonal line XR shown in FIG. 8,

A1A2＝A2A3＝(A-C)/2；OO1＝(A+C)/2；O1X2＝√2L/2；O1A2＝√2a/2；ΔO1A1A2∽△O1X1X2；X1X2/A1A2＝O1X2/O1A2；

thus:

X1X2＝(A-C)/2×L/a；

the thickness of the point X is XX1 XX2+ X1X2 OO1+ X1X2 (A + C)/2+ (A-C)/2 xL/a (relation 1);

due to Δ O1X 2 ≡ Δ O1R 2;

thus: X1X2 ═ R1R2

R-point thickness RR1 RR2-R1R2 OO1-X1X2 (a + C)/2- (a-C)/2 × L/a (relation 2);

therefore, the height adjustment of X, R is carried out by taking a diagonal YZ as a rotating shaft, swinging a diagonal XR around the rotating shaft YZ, starting from the equal height X2R2 of X, R, and lowering the lifting frame at the X point by (A-C)/2 xL/a; lifting the lifting frame at the R point (A-C)/2 xL/a;

when the diagonal XR is taken as the rotation axis, the diagonal YZ swings around the rotation axis XR, and similarly as can be seen from FIG. 8: y-point thickness ═ B + D)/2+ (B-D)/2 xl/a (relation 3); thickness at point Z ═ B + D)/2- (B-D)/2 xl/a (relation 4);

therefore, the height adjustment of Y, Z is performed by taking the diagonal XR as a rotation axis, swinging the diagonal YZ around the rotation axis XR, Y, Z starting from the equal height Y2Z2, and lowering the Y-point crane by (B-D)/2 xL/a; the lifting frame of the R point is lifted by (B-D)/2 xL/a.

3) Diagonal adjustment mathematical model modeling module model 2-3 when four-corner base plate is rectangular

The side length of a quadrangle formed by the four crane supports is L; the length of the four-corner backing plate ABCD is a, and the width of the four-corner backing plate ABCD is b. Assuming that when L is greater than or equal to a, the tetragonal backing plates ABCD are converted into square tetragonal backing plates with side length of a, and the diagonal adjustment geometric cross-sections of the tetragonal backing plates are analyzed, it can be known from fig. 9 and 10 that OAD1a02 is a/2; OAD1a2 ═ b/2; oadoadoad 1 ═ (a + D)/2; a1A2 ═ A2A3 ═ a-D)/2; Δ OAD1A1A 2- Δ OAD1A01A 02; Δ OAD1a01a02 ≡ Δ OAD1D01D 02; so a01a02/A1a2 ═ OAD1a02/OAD1a2, a01a02 ═ a-D)/2 × (a/b);

a0 having a thickness of a01 A0A0 a02+ a01a02 OADOAD1+ a01a02 (a + D)/2+ (a-D)/2 × (a/b) (relation 5);

d0 has a thickness of D01D0 OADOAD1-D01D02 ═ a + D)/2- (a-D)/2 × (a/b) (relation 6).

As can be seen from figures 11 and 12,

OBC1B02 ═ a/2; OBC1B2 ═ B/2; OBCOBC1 ═ B + C)/2; B1B2 ═ B2B3 ═ B-C)/2; Δ OBC1B1B 2- Δ OBC1B01B 02; Δ OBC1B01B02 ≡ OBC1C01C 02; thus, B01B02/B1B2 ═ OBC1B02/OBC1B 2; B01B02 ═ B-C/2 × (a/B);

b0 point thickness B01B 0B 0B02+ B01B02 obcob 1+ B01B02 (B + C)/2+ (B-C)/2 × (a/B) (relation 7);

the thickness at point C0 is (B + C)/2- (B-C)/2 × (a/B) (formula 8), i.e., C01C0 is OBCOBC1-C01C 02.

Second, realize the theoretical foundation that the model transformation module of the electric console models the mathematical model establishes

When the length or the width of the four-corner base plate is inconsistent with the distance between the four supporting points of the numerical control four-corner base plate processing device, the supporting height corresponding to each corner of the four-corner base plate is different from the height of the four supporting points of the numerical control four-corner base plate processing device. This requires a graphic transformation, which is a mathematical model that transforms a rectangle into a middle square; and then the middle square is transformed into a mathematical model of a large square.

1. Mathematical model transformation module 1 for transforming a rectangle into an intermediate transition square

The four corner pad ABCD with length a and width b is converted into a relationship with a square of four supports:

1) firstly, converting a four-corner backing plate ABCD with the length of a and the width of b into a square with the side length of a,

from the relation 5, it can be found that the thickness at point a0 is (a + D)/2+ (a-D)/2 × (a/b);

from the relation 7, it can be found that the thickness at point B0 is (B + C)/2+ (B-C)/2 × (a/B);

from the relation 8, it can be found that the thickness at the point C0 is (B + C)/2- (B-C)/2 × (a/B);

from the relation 6, the thickness of D0 is (a + D)/2- (a-D)/2 × (a/b).

A0, B0, C0 and D0 are thicknesses of corresponding corners of a rectangle transformed into a square.

2. Mathematical model transformation module 2 for transforming intermediate transition square into large square

The relationship of converting a square four-corner cushion plate with side length a into a square consisting of four supports is as follows:

from the relation 1, the X point thickness is (a0+ C0)/2+ (a0-C0)/2 xl/a;

from the relation 3, the Y-point thickness is (B0+ D0)/2+ (B0-D0)/2 xl/a;

from the relation 2, the thickness of the R point is (a0+ C0)/2- (a0-C0)/2 xl/a;

from the relation 4, the Z point thickness is (B0+ D0)/2- (B0-D0)/2 × L/a;

3. mathematical model transformation module 3 for transforming a rectangle into a large square mathematical model

The rectangle is converted into the middle transition square, the mathematical model formula of the middle transition square is replaced by the mathematical model formula of the middle transition square converted into the large square, the mathematical model formula of the rectangle converted into the large square can be obtained, and the model conversion module 3 is generated.

The relationship between the four corner pad ABCD with length a and width b and the square formed by the four supports:

thickness of X point

(a0+ C0)/2+ (a0-C0)/2 xl/a ═ a + D)/2+ (a-D)/2 × (a/B) ] + [ (B + C)/2- (B-C)/2 × (a/B) ]/2+ [ (a + D)/2+ (a-D)/2 × (a/B) ] - [ (B + C)/2- (B-C)/2 × (a/B) ]/2 xl/a ═ B (a + B + C + D) + a (a-D-B + C) ]/4B + (a + D-B-C) L/4a + (a + B-C-D) L/4B ═ a + B + C + D)/4+ (a + D-B-C) L/4a + (a + B + C + D)/4+ (a + B-C) L/4a + (a + B + (a + D-C) -C-D) L/4b (overall relation 1);

thickness of R point

(a0+ C0)/2- (a0-C0)/2 xl/a ═ a + D)/2+ (a-D)/2 × (a/B) ] + [ (B + C)/2- (B-C)/2 × (a/B) ]/2+ [ (a + D)/2+ (a-D)/2 × (a/B) ] - [ (B + C)/2- (B-C)/2 × (a/B) ]/2 xl/a ═ a + B + C + D)/4- (a + D-B-C) L/4a- (a + B-C-D) L/4B (overall relation 2);

the same can be obtained:

y-point thickness (B0+ D0)/2+ (B0-D0)/2 xl/a ═ a + B + C + D)/4+ (B + C-D-a) L/4a + (a + B-C-D) L/4B (overall relationship 3);

point Z thickness (B0+ D0)/2- (B0-D0)/2 xl/a ═ a + B + C + D)/4- (B + C-D-a) L/4a- (a + B-C-D) L/4B (overall relation 4);

third, realize the theoretical foundation that the module mathematical model of output unit of the electric console builds

The diagonal thickness of the four-corner base plate at the four supporting points of the numerical control four-corner base plate processing device can be converted into the height adjusted by the lifting frame. The output unit module of the electric control table can be converted into the lifting height of four supporting points of the numerical control four-corner base plate processing device.

X-axis height adjustment amplitude ═ - (a + D-B-C) L/4a- (a + B-C-D) L/4B (equation 1)

R-axis height adjustment amplitude ═ A + D-B-C) L/4a + (A + B-C-D) L/4B (equation 2)

Y-axis height adjustment range ═ - (B + C-D-a) L/4a- (a + B-C-D) L/4B (formula 3)

Z-axis height adjustment amplitude ═ B + C-D-A) L/4a + (A + B-C-D) L/4B (equation 4)

According to the theoretical analysis, the electric control box of the numerical control four-corner base plate processing device converts the graph of the four-corner base plate into the middle square four-corner base plate according to the processing data of the four-corner base plates with various specifications and sizes, converts the middle square four-corner base plate into the thickness of four corners of the square four-corner base plate with the same size as four supporting points of the numerical control four-corner base plate processing device, converts the thickness of the four corners of the square four-corner base plate into the height data of the four supporting points of the numerical control four-corner base plate processing device, and converts the height data of the four supporting points into the height data of the.

The following briefly describes the working process of the tool provided by the present invention, taking the above specific embodiment as an example:

in the specific embodiment, the tool comprises an X-axis numerical control lifting system consisting of an X-axis servo motor 26, an X-axis synchronous belt 25, an X-axis lifting table 24, an X-axis ball hinge 27 and an X-axis mother board locking nut 23; the Y-axis numerical control lifting system is composed of a Y-axis servo motor 6, a Y-axis synchronous belt 5, a Y-axis lifting table 10, a Y-axis ball hinge 11 and a Y-axis mother board locking nut 12; the Z-axis numerical control lifting system consists of a Z-axis servo motor 31, a Z-axis ball hinge 28, a Z-axis lifting table 29, a Z-axis synchronous belt 30 and a Z-axis mother board locking nut 22; the R-axis numerical control lifting system is composed of an R-axis servo motor 4, an R-axis ball hinge 7, an R-axis synchronous belt 8, an R-axis lifting table 9 and an R-axis mother board locking nut 13.

Theoretically, the grinding height of the grinder, which is the height of the servo X-axis numerical control lifting system, the height of the workpiece positioning support 21 and the angle thickness of the four-corner base plate a, which is the height of the servo Y-axis numerical control lifting system, the height of the workpiece positioning support 21 and the angle thickness of the four-corner base plate B, which is the height of the servo Z-axis numerical control lifting system, the height of the workpiece positioning support 21 and the angle thickness of the four-corner base plate D, which is the height of the servo R-axis numerical control lifting system, the height of the workpiece positioning support 21 and the angle thickness of the four-corner base plate C.

Therefore, the height of the servo X-axis numerical control lifting system + the angle thickness of the four-corner base plate a is equal to the height of the servo Y-axis numerical control lifting system + the angle thickness of the four-corner base plate B is equal to the height of the servo Z-axis numerical control lifting system + the angle thickness of the four-corner base plate D is equal to the height of the servo R-axis numerical control lifting system + the angle thickness of the four-corner base plate C.

When the diagonal height is adjusted, only the height of the diagonal numerical control lifting system is changed, the height of the workpiece positioning support 21 is not changed, the corner thickness of the four-corner base plate is not changed, the value of h is increased at one end of the diagonal, and the value of h is decreased at the other end of the diagonal, and the sum of the height of the diagonal numerical control lifting frame and the height of the diagonal workpiece positioning support 21 is not changed, so that the sum of the diagonal height of the diagonal numerical control lifting system, the diagonal height of the diagonal workpiece positioning support 21 and the diagonal thickness of the four-corner base plate is equal to 2 times of the grinding height of the grinding machine, and when the heights of the diagonals are adjusted to be the same. The other diagonal adjustment is adjusted as described above.

The process of processing the four-corner base plate on the surface grinding machine by adopting the numerical control four-corner base plate processing device comprises the following steps:

1. because the electric console 1 is connected with the X-axis servo motor 26, the Y-axis servo motor 6, the Z-axis servo motor 31 and the R-axis servo motor 4 through connecting cables, the electric console 1 sends out that the peripheries of the Y-axis servo motor, the Z-axis servo motor, the X-axis servo motor and the R-axis servo motor are linked to ascend to the middle height position of the crane.

2. Adjusting the spatial positions of the points B and D of the workpiece 20 to be processed:

because the electric control platform 1 is connected with the X-axis servo motor 26, the Y-axis servo motor 6, the Z-axis servo motor 31 and the R-axis servo motor 4 through connecting cables, the length a and the width b of the four corner base plates, the thicknesses A, B, C, D of the four corners of the four corner base plates and the positioning size L of the template are input into an input unit module of the electric control platform 1, the input unit module stores the processing data, classifies the processing data, and then transmits the classified data to a modeling calculation transformation middle unit module modeling module. The modeling module receives the processing data information of the sorted and classified four-corner base plates transmitted by the input unit module, sorts the processing data information again, identifies and classifies the sorted data, constructs a corresponding mathematical model and pushes the mathematical model to the calculation processing module. The calculation processing module realizes calculation processing of data in the building die, the calculated data is sent to the model conversion module, and when the length or the width of the four-corner base plate is inconsistent with the distance between the four supporting points of the numerical control four-corner base plate processing device, the supporting height corresponding to each corner of the four-corner base plate is different from the height of the four supporting points of the numerical control four-corner base plate processing device, so that graphic conversion is needed, namely, a rectangle is converted into a mathematical model of a middle square, and then the middle square is converted into a mathematical model of a large square. The model transformation module receives the calculation data of the processing calculation module, identifies and classifies the calculation data, performs model transformation calculation, determines the spatial positioning positions of four corners of the processed four-corner base plate workpiece according to the transformation calculation data, and transmits the transformation calculation data to the output unit module. The output unit module receives the conversion calculation data sent by the model conversion module of the modeling calculation conversion intermediate unit and converts the conversion calculation data into output data capable of driving a servo motor to operate, the output unit module processes the data and sends out a simultaneous lifting linkage instruction of a Y-diagonal and Z-diagonal two-axis numerical control lifting frame, a hinge connecting line formed by a ball hinge X-axis ball hinge 27 and an R-axis ball hinge 7 which are diagonally corresponding to a motherboard 14 is taken as a rotating shaft axis OxOR, when the Y-axis servo motor 6 is in two-axis linkage with a Z-axis servo motor 31, the Y-axis servo motor 6 rotates and drives a Y-axis lifting platform 10 to ascend (descend) through a Y-axis synchronous belt 5, the Y-axis lifting platform 10 ascends (descends) to drive a Y-axis ball hinge 11, a Y-axis motherboard locking nut 12 and a B point of the motherboard 14 to ascend (descend) around the rotating shaft axis OxOR, and when the linkage Z-axis servo motor, The Z-axis synchronous belt 30 drives the Z-axis lifting table 29 to descend (ascend), the Z-axis lifting table 29 descends (ascend) drives the Z-axis ball hinge 28, the Z-axis mother plate locking nut 22 and a D point of the mother plate 14 to descend (ascend) by a value h around a rotating shaft axis OxOR, and at the moment, the sum of the thickness of a B angle of the four-angle cushion plate and the height of a Y-axis corresponding point on the mother plate 14 is equal to the sum of the thickness of a D angle of the four-angle cushion plate and the height of a Z-axis corresponding point on the mother plate 14. (explaining that the lifting h values of the Y axis and the Z axis are automatically calculated and controlled by a numerical control system to reach the corresponding heights)

3. Adjusting the spatial positions of the points a and C of the workpiece 20 to be machined:

because the electric control platform 1 is connected with the X-axis servo motor 26, the Y-axis servo motor 6, the Z-axis servo motor 31 and the C-axis servo motor 4 through connecting cables, after the spatial position of B, D points of four-corner base plates is adjusted, an output unit module of the electric control platform 1 sends out simultaneous lifting linkage instructions of X-diagonal and R-diagonal two-axis numerical control lifting frames, a hinge connecting line formed by the Y-axis ball hinge 11 and the Z-axis ball hinge 28C of the ball hinge corresponding to the diagonal of the motherboard 14 is taken as a rotating shaft axis OyOz, when the X-axis servo motor 26 is in two-axis linkage with the C-axis servo motor 4, the X-axis servo motor 26 rotates, the X-axis lifting platform 24 is driven to ascend (descend) through the X-axis synchronous belt 25, the X-axis lifting platform 24 is driven to ascend (descend) by the X-axis lifting platform 24, the X-axis ball hinge 27 and the locking nut of the X-axis motherboard are driven by the X-axis lifting, The R-axis lifting table 9 is driven to descend (ascend) through the R-axis synchronous belt 8, the R-axis lifting table 9 descends (ascend) to drive the R-axis ball hinge 7, the R-axis mother plate locking nut 13 and the C point of the mother plate 14 to descend (ascend) around the axis OyOz of the rotating shaft for a value h1, and the sum of the thickness of the B angle of the four-angle pad and the height of the Y-axis corresponding point on the mother plate 14 is equal to the sum of the thickness of the D angle of the four-angle pad and the height of the Z-axis corresponding point on the mother plate 14. (explaining that the lifting h1 values of the X axis and the R axis are automatically calculated and controlled by a numerical control system to reach the corresponding heights)

4. The workpiece 20 to be machined is positioned and clamped by the workpiece positioning plate 15 and the workpiece positioning screw 16.

5. Grinding the upper plane of the workpiece 20 to be machined (the workpiece to be machined is a four-corner backing plate):

adjusting the height of a Z-axis moving platform 19 of the surface grinding machine through a height-adjusting hand wheel in the surface grinding machine, namely adjusting the grinding depth of a workpiece to be processed; when the surface grinder works, the grinding wheel 18 of the surface grinder rotates at a high speed, and meanwhile, the X-axis moving platform 2 of the surface grinder moves along the X direction, because the bottom plate 32 is fixedly connected with the workbench 3 of the surface grinder; the X-axis servo motor 26 and the X-axis lifting platform 24 are fixedly connected with the bottom plate 32, and the X-axis ball hinge 27 is respectively fixedly connected with the X-axis lifting platform 24 and the mother plate 14 through the X-axis mother plate locking nut 23; the Y-axis servo motor 6 and the Y-axis lifting platform 10 are fixedly connected with the bottom plate 32, and the Y-axis ball hinge 11 is respectively and fixedly connected with the Y-axis lifting platform 10 and the mother plate 14 through the Y-axis mother plate locking nut 12; a Z-axis servo motor 31 and a Z-axis lifting platform 29 are fixedly connected with a bottom plate 32, and a Z-axis ball hinge 28 is respectively fixedly connected with the Z-axis lifting platform 29 and the mother plate 14 through a Z-axis mother plate locking nut 22; the R-axis servo motor 4 and the R-axis lifting platform 9 are fixedly connected with a bottom plate 32, the R-axis ball hinge 7 is respectively fixedly connected with the R-axis lifting platform 9 and a mother plate 14 through an R-axis mother plate locking nut 13, when the servo motor of the numerical control lifting system is still, four hinge nodes Ax, By, Dz, CR and four ball centers in the numerical control lifting system form a space rigid truss structure, each node of the space rigid truss structure is in a constraint state, the lower part of a workpiece positioning support 21 is in threaded structure and is fixedly connected with the mother plate 14, the upper part of the workpiece positioning support 21 is in a ball head structure and is used for supporting a workpiece 20 to be processed, a workpiece positioning plate 15 and a workpiece positioning screw 16 in an X _ y plane of the workpiece 20 to be processed are constrained, positioned and clamped, so the workpiece 20 to be processed can move along the X direction along with the X-axis moving platform 2 of the surface grinding machine, and the grinding wheel 18 rotating at a high speed can grind the workpiece 20 to be processed along the X direction, after the starting end of the workpiece 20 to be machined is ground to the tail end of the workpiece 20 to be machined, the axial moving table 17 of the surface grinding machine Y drives a grinding wheel of the grinding machine to perform feed motion along the transverse direction (Y direction); the X-axis moving table 2 of the surface grinding machine moves back and forth along the X direction again, so as to drive the workpiece 20 to be processed to move along the X direction, and the grinding wheel 18 rotating at a high speed grinds the workpiece 20 to be processed moving along the X direction, and the steps are repeated from the starting end of the workpiece 20 to be processed to the end of the workpiece 20 to be processed, until the upper surface of the backing plate is ground.

6. Turning over a workpiece: after the grinding of the upper plane of the four-corner backing plate is completed, the screw-connected workpiece positioning screws 16 are loosened, and the four-corner backing plate is turned over (there are two turning methods: the first is turning over in the transverse direction, and the second is turning over in the longitudinal direction).

1) The first is along the horizontal turn-over, namely the lower plane of the unprocessed is upward now, the processed plane is downward, the angle A point of the original four-corner backing plate corresponds to the positioning support 21a point with the height adjusted by screw thread, the angle B point of the four-corner backing plate corresponds to the positioning support 21B point with the height adjusted by screw thread, the angle C point of the four-corner backing plate corresponds to the positioning support 21C point with the height adjusted by screw thread, and the angle D point of the four-corner backing plate corresponds to the positioning support 21D point with the height adjusted by screw thread; now, the corner a point of the four corner base plate corresponds to the location support 21B point with the height adjusted by the screw thread, the corner B point of the four corner base plate corresponds to the location support 21a point with the height adjusted by the screw thread, the corner C point of the four corner base plate corresponds to the location support 21D point with the height adjusted by the screw thread, and the corner D point of the four corner base plate corresponds to the location support 21C point with the height adjusted by the screw thread.

2) The second method is turning over along the longitudinal direction, namely that the unprocessed lower plane is upward at present, the processed plane is downward, the angle A point of the original four-corner cushion plate corresponds to a positioning support 21a point with the height adjusted by screw threads, the angle B point of the four-corner cushion plate corresponds to a positioning support 21B point with the height adjusted by screw threads, the angle C point of the four-corner cushion plate corresponds to a positioning support 21C point with the height adjusted by screw threads, and the angle D point of the four-corner cushion plate corresponds to a positioning support 21D point with the height adjusted by screw threads; now, the corner a point of the four corner base plate corresponds to the location support 21D point with the height adjusted by the screw thread, the corner B point of the four corner base plate corresponds to the location support 21C point with the height adjusted by the screw thread, the corner C point of the four corner base plate corresponds to the location support 21B point with the height adjusted by the screw thread, and the corner D point of the four corner base plate corresponds to the location support 21a point with the height adjusted by the screw thread.

7. Adjusting the spatial positions of the point C and the point A according to a method for adjusting the numerical control lifting system by diagonal linkage:

the length a and the width b of the four-corner base plate, the thickness A, B, C, D of the four corners of the four-corner base plate and the positioning size L of the template are input into an input unit module of the electric control board 1, the input unit module stores the processing data, the processing data are classified, and then the classified data are transmitted to a modeling calculation transformation middle unit module modeling module. The modeling module receives the processing data information of the sorted and classified four-corner base plates transmitted by the input unit module, sorts the processing data information again, identifies and classifies the sorted data, constructs a corresponding mathematical model and pushes the mathematical model to the calculation processing module. The calculation processing module realizes calculation processing of data in the building die, the calculated data is sent to the model conversion module, and when the length or the width of the four-corner base plate is inconsistent with the distance between the four supporting points of the numerical control four-corner base plate processing device, the supporting height corresponding to each corner of the four-corner base plate is different from the height of the four supporting points of the numerical control four-corner base plate processing device, so that graphic conversion is needed, namely, a rectangle is converted into a mathematical model of a middle square, and then the middle square is converted into a mathematical model of a large square. The model transformation module receives the calculation data of the processing calculation module, identifies and classifies the calculation data, performs model transformation calculation, determines the spatial positioning positions of four corners of the processed four-corner base plate workpiece according to the transformation calculation data, and transmits the transformation calculation data to the output unit module. The output unit module receives the transformation calculation data sent by the model transformation module of the modeling calculation transformation intermediate unit and transforms the transformation calculation data into output data capable of driving a servo motor to operate, the output unit module processes the data and sends out a diagonal two-axis numerical control lifting frame simultaneous lifting linkage instruction, a hinge connecting line consisting of a ball hinge X-axis ball hinge 27 and an R-axis ball hinge 7 corresponding to the diagonal of a motherboard 14 is taken as a rotating shaft axis OxOR, when a Y-axis servo motor 6 is in two-axis linkage with a Z-axis servo motor 31, the Y-axis servo motor 6 rotates, the Y-axis lifting table 10 is driven to ascend (descend) through a Y-axis synchronous belt 5, the Y-axis lifting table 10 ascends (descends) to drive a Y-axis ball hinge 11, a Y-axis motherboard locking nut 12 and a C point of the motherboard 14 to ascend (descend) around the rotating shaft axis OxOR by a value of h2, and when the Z-axis servo motor 31 rotates in linkage, the Z-axis lifting table 29 is driven to descend (, The Z-axis lifting table 29 descends (ascends) to drive the Z-axis ball hinge 28, the Z-axis mother board locking nut 22 and the point a of the mother board 14 to descend (ascend) by a value of h2 around the axis OxOR of the rotating shaft, and at this time, the sum of the thickness of the C-angle of the four-angle pad and the height of the point corresponding to the Y-axis on the mother board 14 is equal to the sum of the thickness of the a-angle of the four-angle pad and the height of the point corresponding to the Z-axis on the mother board 14. (explaining that the lifting h2 values of the Y axis and the Z axis are automatically calculated and controlled by a numerical control system to reach the corresponding heights)

8. Adjusting the spatial positions of the point D and the point B according to a method for adjusting the numerical control lifting system by diagonal linkage:

after the spatial position of B, D points of the four-corner backing plate is adjusted, an output unit module of the electric control platform 1 sends out a simultaneous lifting linkage command of a diagonal two-axis numerical control lifting platform, a hinge connecting line consisting of a spherical hinge Y-axis spherical hinge 11 and a Z-axis spherical hinge 28C corresponding to the diagonal of the mother plate 14 is taken as a rotating axis OyOz, when an X-axis servo motor 26 is linked with a C-axis servo motor 4, the X-axis servo motor 26 rotates to drive an X-axis lifting platform 24 to ascend (descend) through an X-axis synchronous belt 25, the X-axis lifting platform 24 ascends (descends) to drive an X-axis spherical hinge 27 and an X-axis mother plate locking nut and a D point of the mother plate 14 to ascend (descend) around the rotating axis OyOz by h3 values, when a linked R-axis servo motor 4 rotates to drive an R-axis lifting platform 9 to descend (ascend) through an R-axis synchronous belt 8, the R-axis lifting platform 9 descends (ascend) to drive an R-axis spherical hinge 7, an R-axis mother plate locking nut 13 and a B point of, and then the sum of the thickness of the D corner of the four-corner cushion plate and the height of the X-axis corresponding point on the mother plate 14 is equal to the sum of the thickness of the B corner of the four-corner cushion plate and the height of the C-axis corresponding point on the mother plate 14, namely the height difference between the X axis and the R axis is equal to the thickness difference between the D corner and the B corner, namely the height of the D corner of the four-corner cushion plate, namely the height of the B corner of the four-corner cushion plate, namely the grinding height of a grinding machine, or the height of the D corner is as high as the B corner, so that the space correct positions of the D point and the B point. (explaining that the lifting h3 values of the X axis and the R axis are automatically calculated and controlled by a numerical control system to reach the corresponding heights)

8. The workpiece 20 to be machined is positioned and clamped by the workpiece positioning plate 15 and the workpiece positioning screw 16.

9. Grinding the lower plane (referring to the turned-over upper plane) of the workpiece to be machined (four-corner backing plate) 20: adjusting the height of a Z-axis moving platform 19 of the surface grinding machine through a height-adjusting hand wheel in the surface grinding machine, namely adjusting the grinding depth of a workpiece to be processed; when the surface grinding machine works, the grinding wheel 18 of the surface grinding machine rotates at a high speed, the X-axis moving table 2 of the surface grinding machine moves along the X direction, the workpiece 20 to be machined moves along the X direction along with the X-axis moving table 2 of the surface grinding machine, the grinding wheel 18 rotating at the high speed grinds the workpiece 20 to be machined moving along the X direction, and the Y-axis moving table 17 of the surface grinding machine drives the grinding wheel of the grinding machine to perform feeding motion along the transverse direction (Y direction) from the starting end of the workpiece 20 to be machined until the tail end of the workpiece 20 to be machined is ground; the X-axis moving table 2 of the surface grinding machine moves back and forth along the X direction again, so as to drive the workpiece 20 to be processed to move along the X direction, and the grinding wheel 18 rotating at a high speed grinds the workpiece 20 to be processed moving along the X direction, and the steps are repeated from the starting end of the workpiece 20 to be processed to the end of the workpiece 20 to be processed, until the upper surface of the backing plate is ground. Thus, the processing of the four-corner cushion plate is completed.

In addition to the above-mentioned tool, the present invention also provides a surface grinder including the numerical control four-corner backing plate processing device, and the structure of other parts of the general grinder is referred to the prior art and is not described herein again.

The above embodiments are only for illustrating the embodiments of the present invention and are not to be construed as limiting the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made on the basis of the embodiments of the present invention shall be included in the scope of the present invention.

Claims

1. The utility model provides a four corners backing plate processing auxiliary fixtures for flat grinder, its characterized in that includes:

2. The four corners backing plate processing auxiliary fixtures of claim 1, characterized in that, lifting unit includes:

the servo motor is electrically connected with the electric control platform;

3. The four-corner base plate machining auxiliary tool according to claim 2, wherein the lifting assembly further comprises a ball hinge, and the lifting table is rotatably connected with the mother plate through the ball hinge.

4. The four-corner base plate machining auxiliary tool according to claim 3, wherein the lifting assembly further comprises a locking nut, and the lifting table is fixed to the mother plate through the locking nut when rotating to a preset position relative to the mother plate.

5. The four-corner base plate machining auxiliary tool according to claim 3, wherein the lifting assembly further comprises a synchronous belt, and the servo motor is in transmission connection with the lifting table through the synchronous belt.

6. The four corners backing plate processing auxiliary fixtures of claim 5, characterized in that, the elevating platform includes:

7. The four-corner base plate machining auxiliary tool according to any one of claims 1 to 6, further comprising a workpiece positioning support, wherein one end of the workpiece positioning support is fixed to the mother plate, and the other end of the workpiece positioning support is provided with a ball head structure for supporting the workpiece to be machined.

8. The four corners backing plate processing auxiliary fixtures of any one of claims 1-6, characterized in that, locating component includes:

9. The four-corner base plate machining auxiliary tool according to any one of claims 1 to 6, further comprising a protective cover, wherein the protective cover is arranged between the mother plate and the bottom plate and covers the periphery of the lifting assembly.

10. A surface grinding machine comprising a worktable and an electric console, characterized by further comprising the quadrangular base plate processing auxiliary tool according to any one of claims 1 to 9.