A reading head installation device, method, machine tool control system and control method

Abstract

The present invention discloses a reading head installation device, method, machine tool control system and control method. The reading head installation device comprises a reading head installation plate, a reading head hanging plate, an adjustment gasket, a first fastener and a second fastener. When in use, the reading head hanging plate is set on the side wall of the lower slide seat, the reading head installation plate is set on the reading head hanging plate, the position of the first installation part in the first direction is adjusted; the position of the reading head installation plate in the second direction is adjusted; the gap between the first installation part and the lower slide seat is adjusted in the third direction by adjusting the gasket, so that the reading head installation plate can be adjusted in the three-dimensional space formed by the mutually perpendicular first direction, second direction and third direction, so as to ensure the installation accuracy of the reading head, so that the reading head can be accurately installed on the lower slide seat of the machine tool, so as to ensure the normal use of the grating ruler and improve the accuracy index of the machine tool.

Description

Technical Field

[0001] The invention relates to the field of installation of a grating ruler reading head, and in particular to a reading head installation device, an installation method, a machine tool control system and a machine tool control method. Background Art

[0002] As the factory production scale continues to grow, our company has introduced grating rulers for the transformation of CNC machine tools. However, the introduced grating rulers are limited by the structure of CNC machine tools, and the reading head of the grating ruler cannot be well installed on the lower slide of the CNC machine tool, which affects the normal use of the grating ruler and reduces the accuracy index of the CNC machine tool.

[0003] Therefore, how to improve the precision index of CNC machine tools has become a technical problem that needs to be urgently solved by technical personnel in this field. Summary of the invention

[0004] The object of the present invention is to provide a reading head mounting device to improve the accuracy index of a numerically controlled machine tool.

[0005] To achieve the above-mentioned object, the present invention provides a reading head installation device for installing a grating ruler on a machine tool, wherein the machine tool comprises a fixed bed and a movable lower slide, the grating ruler comprises a grating ruler strip, a reading head and a standard tooling, the grating ruler strip is installed on the upper surface of the fixed bed, the reading head is installed on the standard tooling, and the standard tooling can ensure the relative position between the grating ruler strip and the reading head, and the reading head installation device comprises:

[0006] A reading head mounting plate is arranged below the reading head, the reading head mounting plate is provided with a first connecting hole for connecting the reading head, and the first connecting hole and the mounting hole of the reading head can be connected by bolts;

[0007] A reading head hanging plate having a first mounting portion and a second mounting portion, wherein a plane where the first mounting portion is located is perpendicular to a plane where the second mounting portion is located, and the reading head mounting plate is arranged on an upper surface of the second mounting portion, the first mounting portion is arranged on a side wall of the lower slide seat, the position of the first mounting portion in a first direction is adjustable, the position of the reading head mounting plate relative to the reading head hanging plate in a second direction is adjustable, and the first direction is perpendicular to the second direction;

[0008] An adjusting gasket is arranged between the reading head hanging plate and the lower slide seat, the adjusting gasket can adjust the gap between the reading head hanging plate and the lower slide seat in a third direction, the third direction is perpendicular to the plane formed by the first direction and the second direction, the reading head mounting plate moves to a second preset position in the second direction, and when the reading head hanging plate moves to the third preset position in the third direction, the mounting hole of the reading head can be aligned with the first connecting hole, and when the reading head hanging plate moves to the first preset position in the first direction, the gap between the reading head and the reading head mounting plate is qualified;

[0009] A first fastener for fastening the reading head hanging plate to the side wall of the lower sliding seat;

[0010] A second fastener is used to fasten the read head mounting plate to the read head hanging plate.

[0011] Preferably, in the above-mentioned reading head mounting device, the reading head mounting plate is provided with a first elongated adjustment hole, the second mounting portion is provided with a second connecting hole capable of cooperating with the first adjustment hole, and the length direction of the first adjustment hole is parallel to the second direction.

[0012] Preferably, in the above-mentioned reading head mounting device, the reading head mounting plate also includes a placement portion arranged on the reading head mounting plate, and the placement portion is higher than the upper surface of the reading head mounting plate, and the first connecting hole is arranged in the placement portion.

[0013] Preferably, in the above-mentioned reading head mounting device, the placing portion is a rectangular boss.

[0014] Preferably, in the above-mentioned reading head mounting device, the reading head hanging plate is L-shaped.

[0015] Preferably, in the above-mentioned reading head mounting device, the first mounting portion is provided with a second elongated adjustment hole, the side wall of the lower sliding seat is provided with a third mounting hole matching with the first adjustment hole, and the length direction of the second adjustment hole is parallel to the first direction.

[0016] Preferably, in the above-mentioned reading head installation device, the reading head installation device also includes a protective cover for protecting the reading head, and the protective cover is arranged on the fixed bed.

[0017] Preferably, in the above-mentioned reading head mounting device, the protective cover includes a shielding portion arranged above the reading head, a connecting portion connected to the fixed bed, and a transition portion connecting the shielding portion and the connecting portion, and the shielding portion is located at one end of the transition portion away from the connecting portion.

[0018] Preferably, in the above-mentioned reading head mounting device, the shielding portion includes an inclined plate and a baffle provided on the side of the inclined plate close to the reading head hanging plate; and the angle between the plane where the inclined plate is located and the plane where the transition portion is located is greater than 90 degrees.

[0019] Preferably, in the above-mentioned reading head mounting device, the protective cover and the fixed bed are connected by bolts.

[0020] A machine tool control system comprises a reading head mounting device as described in any one of the above items.

[0021] A method for installing a reading head, using any one of the reading head installation devices described above, comprising the steps of:

[0022] S1: The reading head mounting plate moves in the second direction, and the reading head hanging plate moves in the third direction;

[0023] S2: Determine whether the mounting hole of the reading head is aligned with the first connecting hole on the reading head mounting plate, if so, execute step S3, if not, execute step S1;

[0024] S3: the reading head hanging plate moves in the first direction;

[0025] S4: Determine whether the reading head hanging plate is in the first preset position, if yes, execute S5, if not, execute step S3;

[0026] S5: The reading head hanging plate is fastened to the side wall of the lower sliding seat;

[0027] S6: The reading head mounting plate is fastened to the second mounting portion of the reading head hanging plate;

[0028] S7: Determine again whether the reading head hanging plate is in the first preset position, if yes, execute step S8, if not, execute step S3;

[0029] S8: Standard tooling disassembly.

[0030] A machine tool control method includes the reading head installation method as described above.

[0031] When using the reading head installation device provided by the present invention, the reading head is installed on the standard tooling, and the relative position between the grating scale and the reading head is determined by the standard tooling, and then the first mounting portion of the reading head hanging plate is set on the side wall of the lower slide seat, and the reading head mounting plate is set on the upper surface of the second mounting portion of the reading head hanging plate, and the position of the second mounting portion in the first direction is adjusted by adjusting the position of the first mounting portion in the first direction, and then the position of the reading head mounting plate arranged on the upper surface of the second mounting portion is adjusted in the first direction; and the position of the reading head mounting plate relative to the reading head hanging plate in the second direction can be adjusted, that is, the position of the reading head mounting plate can be adjusted within the plane formed by the first direction and the second direction; because an adjustment gasket is arranged between the first mounting portion and the lower slide seat, the adjustment gasket can adjust the gap between the first mounting portion and the lower slide seat in the third direction, thereby driving the reading head mounting plate arranged on the second mounting portion to adjust its position in the third direction. , and the third direction is perpendicular to the plane formed by the first direction and the second direction. Therefore, the reading head mounting plate can be adjusted in a three-dimensional space formed by the first direction, the second direction and the third direction which are perpendicular to each other. When the reading head mounting plate moves to the second preset position in the second direction, and the reading head hanging plate moves to the third preset position in the third direction, the mounting hole of the reading head is aligned with the first connecting hole on the reading head mounting plate. At this time, the reading head hanging plate is moved to the first preset position in the first direction. After the gap between the reading head and the reading head mounting plate is qualified, the first connecting hole and the mounting hole of the reading head are connected together by bolts, and then the reading head hanging plate is fastened to the side wall of the lower slide seat by the first fastener, and the reading head mounting plate is fastened to the second mounting part of the reading head hanging plate to prevent the reading head hanging plate from moving in the first direction and the third direction during use, and the reading head mounting plate moves in the second direction, thereby realizing the accurate installation of the reading head on the lower slide seat. It can be seen that the reading head installation device provided by the present invention can adjust the position of the reading head in three directions perpendicular to each other, thereby ensuring the installation accuracy of the reading head and enabling the reading head to be accurately installed on the lower slide of the machine tool, thereby ensuring the normal use of the grating scale and improving the accuracy index of the machine tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0033] Figure 1 A schematic diagram of the front assembly structure of a reading head mounting device provided by an embodiment of the present invention;

[0034] Figure 2A schematic diagram of the side assembly structure of a reading head mounting device provided by an embodiment of the present invention;

[0035] Figure 3 A schematic diagram of a three-dimensional assembly structure of a reading head mounting device provided by an embodiment of the present invention;

[0036] Figure 4 A schematic diagram of the three-dimensional structure of a reading head mounting plate provided by an embodiment of the present invention;

[0037] Figure 5 A schematic diagram of a top view of a reading head mounting plate provided by an embodiment of the present invention;

[0038] Figure 6 A schematic diagram of the front structure of a reading head mounting plate provided by an embodiment of the present invention;

[0039] Figure 7 A schematic diagram of the three-dimensional structure of a reading head hanging plate provided by an embodiment of the present invention;

[0040] Figure 8 A schematic diagram of the side structure of a reading head hanging plate provided by an embodiment of the present invention;

[0041] Fig. 9 A schematic diagram of a top view of a reading head hanging plate provided by an embodiment of the present invention;

[0042] Fig.10 A schematic diagram of the front structure of a reading head hanging plate provided by an embodiment of the present invention;

[0043] Fig.11 A schematic diagram of the three-dimensional structure of a protective cover provided by an embodiment of the present invention;

[0044] Fig.12 A schematic diagram of the side structure of a protective cover provided by an embodiment of the present invention;

[0045] Fig.13 A schematic flow chart of a method for installing a reading head provided in an embodiment of the present invention.

[0046] Among them, 100 is a reading head, 200 is a machine tool, 201 is a lower slide, 202 is a fixed bed, 300 is a standard tooling, 400 is a reading head hanging plate, 401 is a first mounting part, 4011 is a second adjustment hole, 402 is a second mounting part, 4021 is a second connecting hole, 500 is a reading head mounting plate, 501 is a first adjustment hole, 502 is a placement part, 5021 is a first connecting hole, 600 is a protective cover, 601 is a shielding part, 602 is a connecting part, 603 is a transition part, 6011 is an inclined plate, 6012 is a baffle, a is a first direction, b is a second direction, and c is a third direction. DETAILED DESCRIPTION

[0047] In view of this, the core of the present invention is to provide a reading head mounting device to improve the accuracy index of a CNC machine tool.

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] like Figures 1 to 12 As shown, an embodiment of the present invention discloses a reading head installation device for installing a grating scale on a machine tool 200. The machine tool 200 includes a fixed bed 202 and a movable lower slide 201. The grating scale includes a grating scale bar, a reading head 100 and a standard tooling 300. The grating scale bar is installed on the upper surface of the fixed bed 202, and the reading head 100 is installed on the standard tooling 300. The standard tooling 300 can ensure the relative position between the grating scale bar and the reading head 100. The reading head installation device includes a reading head installation plate 500, a reading head hanging plate 400, an adjustment gasket, a first fastener and a second fastener.

[0050] Among them, the reading head mounting plate 500 is arranged below the reading head 100, and the reading head mounting plate 500 is provided with a first connecting hole 5021 for connecting the reading head 100, and the first connecting hole 5021 and the mounting hole of the reading head 100 can be connected by bolts; the reading head hanging plate 400 has a first mounting part 401 and a second mounting part 402, the plane where the first mounting part 401 is located is perpendicular to the plane where the second mounting part 402 is located, and the reading head mounting plate 500 is arranged on the upper surface of the second mounting part 402, the first mounting part 401 is arranged on the side wall of the lower slide 201, the position of the first mounting part 401 in the first direction a can be adjusted, the position of the reading head mounting plate 500 relative to the reading head hanging plate 400 in the second direction b can be adjusted, and the first direction a is perpendicular to the second direction b; the adjustment gasket is arranged on the reading head Between the hanging plate 400 and the lower slide seat 201, the adjusting gasket can adjust the gap between the reading head hanging plate 400 and the lower slide seat 201 in the third direction c, the third direction c is perpendicular to the plane formed by the first direction a and the second direction b, the reading head mounting plate 500 moves to the second preset position in the second direction b, and when the reading head hanging plate 400 moves to the third preset position in the third direction c, the mounting hole of the reading head 100 can be aligned with the first connecting hole 5021, and when the reading head hanging plate 400 moves to the first preset position in the first direction a, the gap between the reading head 100 and the reading head mounting plate 500 is qualified; the first fastener is used to fasten the reading head hanging plate 400 to the side wall of the lower slide seat 201; the second fastener is used to fasten the reading head mounting plate 500 to the reading head hanging plate 400.

[0051] It can be seen that when using the reading head installation device provided by the present invention, the reading head 100 is installed on the standard tooling 300, and the relative position between the grating scale and the reading head 100 is determined by the standard tooling 300, and then the first installation part 401 of the reading head hanging plate 400 is set on the side wall of the lower slide 201, and the reading head installation plate 500 is set on the upper surface of the second installation part 402 of the reading head hanging plate 400, and the position of the second installation part 402 in the first direction a is adjusted by adjusting the position of the first installation part 401 in the first direction a, and then the relative position of the grating scale and the reading head 100 in the first direction a is adjusted. The position of the reading head mounting plate 500 arranged on the upper surface of the second mounting portion 402 is adjusted; and the position of the reading head mounting plate 500 relative to the reading head hanging plate 400 in the second direction b can be adjusted, that is, the reading head mounting plate 500 can be adjusted in the plane formed by the first direction a and the second direction b; because an adjustment gasket is arranged between the first mounting portion 401 and the lower slide seat 201, the adjustment gasket can adjust the gap between the first mounting portion 401 and the lower slide seat 201 in the third direction c, thereby driving the reading head mounting plate 500 arranged on the second mounting portion 402 to move in the third direction c. The position of the reader head 100 is adjusted in the third direction c, and the third direction c is perpendicular to the plane formed by the first direction a and the second direction b. Therefore, the reading head mounting plate 500 can be adjusted in the three-dimensional space formed by the first direction a, the second direction b and the third direction c which are perpendicular to each other. When the reading head mounting plate 500 moves to the second preset position in the second direction, and the reading head hanging plate 400 moves to the third preset position in the third direction, the mounting hole of the reading head 100 is aligned with the first connecting hole 5021 on the reading head mounting plate 500. At this time, the reading head hanging plate 400 is moved to the first direction. After the first preset position is set so that the gap between the reading head 100 and the reading head mounting plate 500 is qualified, the first connecting hole 5021 and the mounting hole of the reading head are connected together by bolts, and then the reading head hanging plate 400 is fastened to the side wall of the lower slide 201 by the first fastener, and the reading head mounting plate 500 is fastened to the second mounting portion 402 of the reading head hanging plate 400, so as to prevent the reading head hanging plate 400 from moving in the first direction a and the third direction c during use, and the reading head mounting plate 500 from moving in the second direction b, thereby realizing the accurate installation of the reading head 100 on the lower slide 201. It can be seen that the reading head mounting device provided by the present invention can adjust the position of the reading head 100 in three directions perpendicular to each other, ensure the installation accuracy of the reading head 100, enable the reading head 100 to be accurately installed on the lower slide 201 of the machine tool 200, thereby ensuring the normal use of the grating ruler and improving the accuracy index of the machine tool 200.

[0052] It should be noted that the third direction c described in the present invention is a direction perpendicular to the plane where the side wall of the lower slide seat 201 is located, and the first direction a and the second direction b can be any two mutually perpendicular directions in a plane perpendicular to the third direction c. As long as they are perpendicular to the third direction c and can form a three-dimensional space with the third direction c, the first direction a and the second direction b both fall within the protection scope of the present invention; preferably, the first direction a provided by the present invention is a direction perpendicular to the upper surface of the fixed bed 202, and the second direction b is perpendicular to the plane formed by the first direction a and the third direction c.

[0053] In addition, the reading head mounting plate 500 and the reading head hanging plate 400 can be connected by a screw nut connection, a gear rack connection or a chain connection, etc., as long as the position of the reading head mounting plate 500 relative to the reading head hanging plate 400 in the second direction b can be adjusted; preferably, the embodiment of the present invention adopts a long first adjustment hole 501 set on the reading head mounting plate 500, and the second mounting part 402 is provided with a second connecting hole 4021 that can cooperate with the first adjustment hole 501, and the length direction of the first adjustment hole 501 is parallel to the second direction b, so as to place the reading head mounting plate 500 on the upper surface of the second mounting part 402, and after applying a certain pre-tightening force to the first connecting bolt between the first adjustment hole 501 and the second connecting hole 4021, the reading head mounting plate 500 is tapped with a small hammer along the second direction b to achieve the position adjustment of the reading head mounting plate 500 relative to the reading head hanging plate 400 in the second direction b.

[0054] Furthermore, the first adjustment hole 501 may be a U-shaped hole, a rectangular hole or a waist-shaped hole, etc. As long as the reading head mounting plate 500 is tapped with a small hammer along the second direction b, the structure that does not limit the movement of the reading head mounting plate 500 in the second direction b falls within the protection scope of the present invention; preferably, the first adjustment hole 501 provided by the present invention is a waist-shaped hole.

[0055] At the same time, the number of the first adjustment holes 501 can be one, two or three, etc., as long as the number can meet the use requirements, it belongs to the protection scope of the present invention; preferably, the first adjustment holes 501 provided in the embodiment of the present invention are two, to prevent the number of the first adjustment holes 501 from being too small. When the reading head mounting plate 500 is tapped with a small hammer, the reading head mounting plate 500 rotates around the axis of the first connecting bolt connecting the first adjustment hole 501 and the second connecting hole 4021; and to prevent the number of the first adjustment holes 501 from being too large. When the tolerance accumulation is large, some of the first adjustment holes 501 cannot be aligned with the corresponding second connecting holes 4021, that is, some of the first adjustment holes 501 cannot be connected with the corresponding second connecting holes 4021 by the first connecting bolt.

[0056] The present invention does not specifically limit the length and radius of the first adjustment hole 501 and the distance between the center lines of the two first adjustment holes 501. As long as the data can meet the use requirements, they belong to the protection scope of the present invention.

[0057] Furthermore, the adjustment gasket arranged between the reading head hanging plate 400 and the lower slide seat 201 can be a U-shaped gasket, a C-shaped gasket or an O-shaped gasket, etc. As long as it is a gasket that can adjust the gap between the reading head hanging plate 400 and the lower slide seat 201, it belongs to the protection scope of the present invention.

[0058] In addition, the first fastener may be a fastener such as a bolt, a screw or a stud, and any fastener capable of fastening the reading head hanging plate 400 to the side wall of the lower sliding seat 201 falls within the protection scope of the present invention; similarly, the second fastener may be a fastener such as a bolt, a screw or a stud, and any fastener capable of fastening the reading head mounting plate 500 to the reading head hanging plate 400 falls within the protection scope of the present invention; preferably, the first fastener and the second fastener provided in the embodiment of the present invention are both screws.

[0059] Specifically, when the mounting hole of the reading head 100 is aligned with the first connecting hole 5021 on the reading head mounting plate 500, the first connecting hole 5021 and the mounting hole of the reading head mounting plate 500 are connected together by bolts, and then two corresponding screw holes are drilled on the reading head mounting plate 500 and the second mounting part 402 respectively, and the reading head mounting plate 500 and the reading head hanging plate 400 are fastened together by screws to prevent the reading head mounting plate 500 from moving in the second direction b; then two corresponding screw holes are drilled on the first mounting part 401 and the lower sliding seat 201 respectively, and the reading head hanging plate 400 and the lower sliding seat 201 are fastened together by screws to prevent the reading head hanging plate 400 from moving in the first direction a and the third direction c during use, thereby realizing the accurate installation of the reading head 100 on the lower sliding seat 201.

[0060] It should be noted that the present invention does not impose any requirements on the size, position and center distance of the screw holes on the reader head mounting plate 500 and the second mounting portion 402, as long as the reader head mounting plate 500 and the reader head hanging plate 400 can be fastened together by screws; the present invention does not impose any requirements on the size, position and center distance of the screw holes on the first mounting portion 401 and the lower slide seat 201, as long as the reader head hanging plate 400 and the lower slide seat 201 can be fastened together by screws.

[0061] In addition, whether the mounting hole of the reading head 100 and the first connecting hole 5021 on the reading head mounting plate 500 are aligned can be detected by visual inspection, pin detection or three-coordinate measuring machine and the like. Any method that can detect whether the mounting hole of the reading head 100 and the first connecting hole 5021 on the reading head mounting plate 500 are aligned falls within the protection scope of the present invention.

[0062] Furthermore, if Figures 4 to 6 As shown, the reader head mounting plate 500 also includes a placement portion 502 arranged on the reader head mounting plate 500, and the placement portion 502 is higher than the upper surface of the reader head mounting plate 500, and a first connecting hole 5021 is arranged on the placement portion 502, so that the reader head 100 can be installed on the upper surface of the reader head mounting plate 500 through the first connecting hole 5021. When oil flows to the upper surface of the reader head mounting plate 500, the reader head 100 located on the placement portion 502 will not be soaked by the oil.

[0063] It should be noted that the placement portion 502 and the reader head mounting plate 500 can be an integrated structure or a separately arranged bracket structure, etc. As long as the structure can make the mounting surface of the reader head 100 higher than the upper surface of the reader head mounting plate 500, it belongs to the protection scope of the present invention; preferably, the embodiment of the present invention adopts a rectangular boss with an integrated structure with the reader head mounting plate 500, which has a simple structure, fewer processing steps, and simplifies the manufacturing process.

[0064] In addition, the reading head hanging plate 400 provided by the present invention can be an I-shaped, L-shaped or J-shaped structure, etc., as long as it has a first mounting portion 401 and a second mounting portion 402 that are perpendicular to each other and can meet the requirements of use, it belongs to the protection scope of the present invention; preferably, as Figures 7 to 10 As shown, the reading head hanging plate 400 provided by the present invention is L-shaped, has a simple structure, and is easy to process and manufacture.

[0065] Furthermore, the reading head hanging plate 400 and the lower sliding seat 201 can be connected by a screw nut connection, a gear rack connection or a chain connection, etc. As long as the connection method can make the reading head hanging plate 400 be position-adjusted in the first direction a, it belongs to the protection scope of the present invention; preferably, the embodiment of the present invention adopts a second long adjustment hole 4011 set on the first mounting part 401, and the side wall of the lower sliding seat 201 is provided with a third mounting hole matching the first adjustment hole 501, and the length direction of the second adjustment hole 4011 is parallel to the first direction a, so as to place the reading head hanging plate 400 on the side wall of the lower sliding seat 201, and after applying a certain pre-tightening force to the second connecting bolt between the second adjustment hole 4011 and the third connecting hole, tap the reading head hanging plate 400 with a small hammer along the first direction a to realize the position adjustment of the reading head hanging plate 400 in the first direction a, thereby driving the position adjustment of the reading head mounting plate 500 in the first direction a.

[0066] It should be noted that the second adjustment hole 4011 can be a U-shaped hole, a rectangular hole or a waist-shaped hole, etc. As long as the reading head hanging plate 400 is tapped lightly with a small hammer along the first direction a, the structure that does not limit the movement of the reading head hanging plate 400 in the first direction a falls within the protection scope of the present invention; preferably, the second adjustment hole 4011 provided by the present invention is a waist-shaped hole.

[0067] At the same time, the number of second adjustment holes 4011 can be one, two or three, etc., as long as the number can meet the use requirements, it belongs to the protection scope of the present invention; preferably, the second adjustment holes 4011 provided in the embodiment of the present invention are two, to prevent the number of second adjustment holes 4011 from being too small. When the reading head hanging plate 400 is tapped with a small hammer, the reading head hanging plate 400 rotates around the axis of the second connecting bolt connecting the second adjustment hole 4011 and the third connecting hole; and to prevent the number of second adjustment holes 4011 from being too large. When the tolerance accumulation is large, some of the second adjustment holes 4011 cannot be aligned with the corresponding third connecting holes, that is, some of the second adjustment holes 4011 cannot be connected with the corresponding third connecting holes through the second connecting bolts.

[0068] Furthermore, the length and radius of the second adjustment hole 4011 and the distance between the center lines of the two second adjustment holes 4011 are not specifically limited, and all data that can meet the use requirements are within the protection scope of the present invention.

[0069] like Figure 1 As shown, the reading head installation device provided by the present invention also includes a protective cover 600 arranged on the fixed bed 202 to prevent iron filings, cutting fluid and oil stains dropped during the processing of the machine tool 200 from contaminating the reading head 100 and affecting the normal use of the reading head 100.

[0070] It should be noted that the protective cover 600 can be a box body arranged above the reading head 100, a baffle 6012 with a drainage groove, or a drainage plate and other structures. As long as the structure can provide protection for the reading head 100, it belongs to the protection scope of the present invention; preferably, the present invention provides a specific protective cover 600 structure.

[0071] like Figure 11 to Figure 12 As shown, the protective cover 600 includes a shielding portion 601, a connecting portion 602 and a transition portion 603 which are arranged above the reading head 100; wherein the shielding portion 601 is used to shield debris such as iron filings, cutting fluid and oil stains generated during the machining process of the machine tool 200, the connecting portion 602 is used to connect to the fixed bed 202, and the transition portion 603 is used to connect the shielding portion 601 and the connecting portion 602, and the shielding portion 601 is located at one end of the transition portion 603 away from the connecting portion 602, that is, the shielding portion 601, the connecting portion 602 and the transition portion 603 are in an "I" shape structure.

[0072] Furthermore, the shielding portion 601 can be a drainage plate with a drainage structure, a single inclined plate 6011, or an S-shaped double inclined plate 6011 structure, etc. As long as the structure can block iron filings, cutting fluid, oil stains and other debris generated during the machining process of the machine tool 200, it falls within the protection scope of the present invention; preferably, an embodiment of the present invention provides a specific shielding portion 601 structure.

[0073] Specifically, Fig.11 and Fig.12 As shown, the shielding portion 601 includes an inclined plate 6011 and a baffle 6012 arranged on the side of the inclined plate 6011 close to the reading head hanging plate 400, and the angle between the plane where the inclined plate 6011 is located and the plane where the transition portion 603 is located is greater than 90 degrees, so that iron filings, cutting fluid, oil stains and other debris falling on the inclined plate 6011 can slide on the inclined plate 6011 to the side away from the reading head 100, thereby protecting the reading head 100 from being contaminated.

[0074] It should be noted that the protective cover 600 and the fixed bed 202 can be connected by bolts, screws or rivets, etc. As long as the protective cover 600 can be set on the upper surface of the fixed bed 202, it falls within the protection scope of the present invention; preferably, the embodiment of the present invention adopts bolt connection, which has a simple structure and is easy to install and disassemble.

[0075] In addition, an embodiment of the present invention further discloses a machine tool control system, including a reading head installation device as described in any one of the above items, and therefore has all the technical effects of the above-mentioned reading head installation devices, which will not be described one by one in this article.

[0076] like Fig.13As shown, a method for installing a reading head disclosed in an embodiment of the present invention uses a reading head installation device as described in any one of the above, including the steps of:

[0077] S1: the reading head mounting plate 500 moves in the second direction b, and the reading head hanging plate 400 moves in the third direction c;

[0078] S2: Determine whether the mounting hole of the reading head 100 is aligned with the first connecting hole 5021 on the reading head mounting plate 500, if so, execute step S3, if not, execute step S1;

[0079] S3: the reading head hanging plate 400 moves in the first direction a;

[0080] S4: Determine whether the reading head hanging plate 400 is in the first preset position, if yes, execute S5, if not, execute step S3;

[0081] S5: The reading head hanging plate 400 is fastened to the side wall of the lower sliding seat 201;

[0082] S6: The reading head mounting plate 500 is fastened to the second mounting portion 402 of the reading head hanging plate 400;

[0083] S7: Determine again whether the reading head hanging plate 400 is in the first preset position, if yes, execute step S8, if not, execute step S3;

[0084] S8: Standard tooling 300 disassembly.

[0085] It should be noted that in step S4 and step S7, the ultimate purpose of judging whether the reading head hanging plate 400 has moved to the first preset position is to judge whether the gap between the reading head mounting plate 500 and the reading head 100 set on the reading head hanging plate 400 is qualified. Different brands and specifications of grating rulers have different requirements for this value. The embodiment of the present invention adopts the Heidenhain brand grating ruler. When a feeler gauge is used to measure the gap between the reading head mounting plate 500 and the reading head 100, if a 0.02mm feeler gauge can pass easily and a 0.04mm feeler gauge cannot pass, then the gap is qualified, that is, the reading head hanging plate 400 has moved to the first preset position.

[0086] In addition, in step S7, the gap between the reading head mounting plate 500 and the reading head 100 needs to be re-tested and qualified before the standard tooling 300 can be disassembled to prevent the installation accuracy of the reading head 100 from being affected during the process of steps S5 and S6; if the re-test fails, it is necessary to readjust the gap between the reading head mounting plate 500 and the reading head 100, that is, re-execute step S3 until the gap meets the requirements.

[0087] It can be seen that, using the reading head installation method provided by the present invention, the position of the reading head 100 can be moved and adjusted in the three-dimensional space formed by the first direction a, the second direction b and the third direction c that are perpendicular to each other, thereby ensuring the installation accuracy of the reading head 100, allowing the reading head 100 to be accurately installed on the lower slide 201 of the machine tool 200, thereby ensuring the normal use of the grating scale and improving the accuracy index of the machine tool 200.

[0088] In addition, an embodiment of the present invention further discloses a method for controlling a machine tool 200, including the reading head installation method as described above, and thus has all the technical effects of the reading head installation method as described above, which will not be described in detail herein.

[0089] The terms "first" and "second" and the like in the specification and claims of the present invention and the above drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but may include steps or units that are not listed.

[0090] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A reading head installation device, used for installing a grating ruler on a machine tool (200), the machine tool (200) comprising a fixed bed (202) and a movable lower slide (201), the grating ruler comprising a grating ruler strip, a reading head (100) and a standard tool (300), the grating ruler strip being installed on the upper surface of the fixed bed (202), the reading head (100) being installed on the standard tool (300), and the standard tool (300) being able to ensure the relative position between the grating ruler strip and the reading head (100), characterized in that: The reading head mounting device comprises: A reading head mounting plate (500) is arranged below the reading head (100), the reading head mounting plate (500) being provided with a first connecting hole (5021) for connecting the reading head (100), and the first connecting hole (5021) and the mounting hole of the reading head (100) can be connected by bolts; A reading head hanging plate (400) having a first mounting portion (401) and a second mounting portion (402), wherein the plane where the first mounting portion (401) is located is perpendicular to the plane where the second mounting portion (402) is located, and the reading head mounting plate (500) is arranged on the upper surface of the second mounting portion (402), the first mounting portion (401) is arranged on the side wall of the lower sliding seat (201), the position of the first mounting portion (401) in a first direction (a) is adjustable, the position of the reading head mounting plate (500) in a second direction (b) relative to the reading head hanging plate (400) is adjustable, and the first direction (a) is perpendicular to the second direction (b); an adjusting gasket arranged between the reading head hanging plate (400) and the lower sliding seat (201), the adjusting gasket being capable of adjusting the gap between the reading head hanging plate (400) and the lower sliding seat (201) in a third direction (c), the third direction (c) being perpendicular to a plane formed by the first direction (a) and the second direction (b), the reading head mounting plate (500) moving to a second preset position in the second direction (b), and when the reading head hanging plate (400) moves to a third preset position in the third direction (c), the mounting hole of the reading head (100) and the first connecting hole (5021) are capable of being aligned, and when the reading head hanging plate (400) moves to the first preset position in the first direction (a), the gap between the reading head (100) and the reading head mounting plate (500) is qualified; A first fastener for fastening the reading head hanging plate (400) to the side wall of the lower sliding seat (201); A second fastener is used to fasten the reading head mounting plate (500) to the reading head hanging plate (400).

2. The reading head mounting device according to claim 1, characterized in that: The reading head mounting plate (500) is provided with a first elongated adjustment hole (501), the second mounting portion (402) is provided with a second connecting hole (4021) capable of cooperating with the first adjustment hole (501), and the length direction of the first adjustment hole (501) is parallel to the second direction (b).

3. The reading head mounting device according to claim 1, characterized in that: The reading head mounting plate (500) further comprises a placement portion (502) arranged on the reading head mounting plate (500), and the placement portion (502) is higher than the upper surface of the reading head mounting plate (500), and the first connecting hole (5021) is arranged on the placement portion (502).

4. The reading head mounting device according to claim 3 is characterized in that: The placement portion (502) is a rectangular boss.

5. The reading head mounting device according to claim 1, characterized in that: The reading head hanging plate (400) is L-shaped.

6. The reading head mounting device according to claim 2, characterized in that: The first mounting portion (401) is provided with a second elongated adjustment hole (4011), the side wall of the lower sliding seat (201) is provided with a third mounting hole that matches the first adjustment hole (501), and the length direction of the second adjustment hole (4011) is parallel to the first direction (a).

7. The reading head mounting device according to claim 1, characterized in that: The reading head (100) installation device also includes a protective cover (600) for protecting the reading head (100), and the protective cover (600) is arranged on the fixed bed (202).

8. The reading head mounting device according to claim 7, characterized in that: The protective cover (600) includes a shielding portion (601) arranged above the reading head (100), a connecting portion (602) connected to the fixed bed (202), and a transition portion (603) connecting the shielding portion (601) and the connecting portion (602), and the shielding portion (601) is located at one end of the transition portion (603) away from the connecting portion (602).

9. The reading head mounting device according to claim 8, characterized in that: The shielding portion (601) comprises an inclined plate (6011) and a baffle (6012) arranged on a side of the inclined plate (6011) close to the reading head hanging plate (400); and an angle between a plane where the inclined plate (6011) is located and a plane where the transition portion (603) is located is greater than 90 degrees.

10. The reading head mounting device according to claim 7, characterized in that: The protective cover (600) and the fixed bed (202) are connected by bolts.

11. A machine tool control system, characterized in that: Comprising a reading head mounting device as described in any one of claims 1 to 10.

12. A method for installing a reading head, characterized in that: The use of the reading head mounting device as described in any one of claims 1 to 10 comprises the steps of: S1: the reading head mounting plate (500) moves in the second direction (b), and the reading head hanging plate (400) moves in the third direction (c); S2: Determine whether the mounting hole of the reading head (100) is aligned with the first connecting hole (5021) on the reading head mounting plate (500), if so, execute step S3, if not, execute step S1; S3: the reading head hanging plate (400) moves in the first direction (a); S4: Determine whether the reading head hanging plate (400) is in the first preset position, if yes, execute S5, if not, execute step S3; S5: The reading head hanging plate (400) is fastened to the side wall of the lower sliding seat (201); S6: The reading head mounting plate (500) is fastened to the second mounting portion (402) of the reading head hanging plate (400); S7: again determining whether the reading head hanging plate (400) is in the first preset position, if so, executing step S8, if not, executing step S3; S8: Disassembly of standard tooling (300).

13. A machine tool control method, characterized in that: Including the reading head installation method as described in claim 12.

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