Device for measuring diameter of grinding wheel of slab sharpening machine

Abstract

The device comprises a sharpening machine mechanism, the left side of the sharpening machine mechanism is arranged on a limiting frame in a limiting and sliding mode, the grinding wheel is arranged at the grinding end of the sharpening machine mechanism, a connecting support is arranged at the position of a grinding head of the sharpening machine mechanism, and a diameter measuring photoelectric switch is arranged on the outer side of the connecting support; and the transverse moving encoder is arranged at the far end of a grinding head of the sharpening machine mechanism. According to the equipment provided by the embodiment of the invention, only one photoelectric switch for diameter measurement needs to be additionally arranged, the measurement equipment is simple and reliable, excessive measurement equipment is not additionally arranged, the use cost is low, the diameter measurement algorithm is simple and effective, initial data only needs to be recorded once during debugging, and the function of automatically measuring the diameter of the grinding wheel is started after the grinding wheel is used for a period of time; and the data can be automatically measured and calculated without manual participation, so that the safety risk caused by manual measurement of the diameter of the grinding wheel is avoided, and the accuracy of data measurement is improved.

Description

Technical Field

[0001] The present application relates to the technical field of slab grinding machines, and in particular to a device for measuring the diameter of a grinding wheel of a slab grinding machine. Background Art

[0002] The grinding machine is used to grind the slabs with surface defects produced by the continuous casting machine. Its function is to remove the surface defects of the slabs and send them to the rolling process after inspection. The grinding wheel is driven by the main grinding motor of the grinding head, and the grinding head can achieve grinding angles of 45° to 90°. During the grinding process, the grinding wheel is in direct contact with the slab and is constantly worn. The diameter of the grinding wheel affects the amount of pressure on the grinding wheel of the grinder and the speed of rotation of the grinding wheel motor. The accuracy of the grinding wheel diameter directly affects whether the grinder can grind and the quality of grinding. At present, the grinding wheel diameter needs to be manually measured and confirmed before each grinding. This measurement method has large measurement errors, low efficiency and safety risks. Therefore, we propose a device for measuring the grinding wheel diameter of a slab grinder. Utility Model Content

[0003] The present application provides a device for measuring the diameter of a grinding wheel of a slab grinding machine to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problem or at least partially solve the above technical problem, the present application provides a device for measuring the diameter of a grinding wheel of a slab grinding machine, comprising:

[0005] A grinding machine mechanism, wherein the left side limit sliding of the grinding machine mechanism is arranged on the limit frame, a grinding wheel is arranged at the grinding end of the grinding machine mechanism, a connecting bracket is arranged at the grinding head of the grinding machine mechanism, and a diameter measuring photoelectric switch is arranged on the outer side of the connecting bracket;

[0006] A traverse encoder is disposed at a distal end of a grinding head of the grinding machine mechanism.

[0007] Optionally, the diameter measuring photoelectric switch includes two parts: a photoelectric switch transmitting end and a photoelectric switch receiving end, and the photoelectric switch transmitting end and the photoelectric switch receiving end are fixedly connected to two sides of the connecting bracket.

[0008] Optionally, the lateral encoder and the diameter measuring photoelectric switch are both connected to a data controller via cable transmission.

[0009] Optionally, a connecting frame is provided at the upper end of the grinding machine mechanism, and the left end of the connecting frame and the left side of the grinding machine mechanism are both connected to the limit bearing through a connecting block.

[0010] Optionally, a circular arc limiting groove is opened in the middle of the limiting frame, and a limiting bearing is movably inserted inside the circular arc limiting groove.

[0011] Optionally, the lateral displacement encoder may be a wire-drawing absolute encoder.

[0012] Optionally, the diameter measuring photoelectric switch is a non-contact switch sensor.

[0013] Optionally, the data controller may be a PLC controller.

[0014] Optionally, the axis of the diameter measuring photoelectric switch intersects with the circumferential edge of the grinding wheel at a point.

[0015] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0016] The device provided in the embodiment of the present application uses the lateral encoder for measuring the diameter of the grinding wheel using the lateral encoder for measuring the lateral position of the grinding head of the original grinder, and the data calculator for measuring the diameter of the grinding wheel uses the controller of the original grinder. Only a photoelectric switch for measuring the diameter needs to be added. The measuring equipment is simple and reliable, does not require additional excessive measuring equipment, and has low cost of use.

[0017] The algorithm for measuring the diameter is simple and effective. The initial data only needs to be recorded once during debugging. After the grinding wheel has been used for a period of time, the automatic measurement of the grinding wheel diameter function can be started to automatically measure and calculate the data. No human intervention is required, saving labor costs. At the same time, it avoids the safety risks of manual measurement of the grinding wheel diameter and improves the accuracy of data measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0019] In order to more clearly illustrate the embodiments of the present application 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, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 The overall structure diagram of a device for measuring the diameter of a grinding wheel of a slab grinding machine;

[0021] Figure 2 The present invention is a schematic diagram of a method for calculating the grinding wheel diameter of a device for measuring the grinding wheel diameter of a slab grinding machine.

[0022] In the figure: 1. Grinding machine mechanism; 2. Grinding wheel; 3. Diameter measuring photoelectric switch; 4. Connecting frame; 5. Connecting block; 6. Limit bearing; 7. Limit frame; 8. Arc limit groove; 9. Transverse encoder. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0024] Various embodiments of the present application may exist in the form of a range. It should be understood that the description in the form of a range is only for convenience and simplicity and should not be understood as a hard limit to the scope of the present application; therefore, it should be considered that the range description has specifically disclosed all possible sub-ranges and single values ​​within the range. For example, it should be considered that the range description from 1 to 6 has specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., as well as single numbers within the range, such as 1, 2, 3, 4, 5 and 6, which are applicable regardless of the range. In addition, whenever a numerical range is indicated in the present application, it is meant to include any quoted numbers (fractions or integers) within the indicated range. Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present application, etc., can be purchased from the market or can be prepared by existing methods.

[0025] In the present application, in the absence of any contrary description, the directional words used, such as "upper" and "lower", are specifically the directions of the drawings in the accompanying drawings. In addition, in the present application, the terms "include", "comprise", etc. refer to "including but not limited to". In the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the present application, "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist, for example, A and / or B, which can represent: A exists alone, A and B exist at the same time, and B exists alone. Wherein A, B can be singular or plural. In the present application, "at least one" refers to one or more, and "plural" refers to two or more. "At least one", "at least one of the following" or similar expressions refer to any combination of these items, including any combination of singular items or plural items. For example, "at least one of a, b, or c" or "at least one of a, b and c" can both mean: a, b, c, ab, i.e. a and b, ac, bc or abc, where a, b, c can be single or plural, respectively.

[0026] like Figure 1-Figure 2As shown, the embodiment of the present application provides a device for measuring the diameter of a grinding wheel of a slab grinding machine, comprising:

[0027] A grinding machine mechanism 1, wherein the left side of the grinding machine mechanism 1 is limitedly slidably arranged on a limit frame 7, a grinding wheel 2 is arranged at the grinding end of the grinding machine mechanism 1, a connecting bracket is arranged at the grinding head of the grinding machine mechanism 1, and a diameter measuring photoelectric switch 3 is arranged on the outer side of the connecting bracket;

[0028] A traverse encoder 9 is provided at the distal end of the grinding head of the grinding machine mechanism 1 .

[0029] Specifically, the lateral displacement encoder 9 utilizes the lateral displacement distance measuring encoder of the original grinding machine mechanism 1, and no additional horizontal position variation detection encoder is added; the data controller utilizes the original grinding machine controller, and no additional controller is added.

[0030] like Figure 1 As shown: the diameter measuring photoelectric switch 3 includes two parts: a photoelectric switch transmitting end and a photoelectric switch receiving end. The photoelectric switch transmitting end and the photoelectric switch receiving end are fixedly connected to both sides of the connecting bracket.

[0031] like Figure 1 As shown: the lateral encoder 9 and the diameter measuring photoelectric switch 3 are both connected to the data controller via cable transmission.

[0032] Specifically: the data controller adopts the existing PLC controller on the market.

[0033] like Figure 1 As shown: a connecting frame 4 is provided at the upper end of the grinding machine mechanism 1, and the left end of the connecting frame 4 and the left side of the grinding machine mechanism 1 are both connected to a limit bearing 6 through a connecting block 5.

[0034] A circular arc limiting groove 8 is formed in the middle of the limiting frame 7 , and the limiting bearing 6 is movably inserted into the circular arc limiting groove 8 .

[0035] Specifically, the arc limiting groove 8 can limit the displacement of the limiting bearing 6 inside it, so that the grinding machine mechanism 1 can stably change the angle to grind the equipment.

[0036] like Figure 1 As shown: the lateral encoder 9 can be a wire-drawing absolute encoder.

[0037] Specifically, the lateral encoder 9 adopts the existing equipment on the market.

[0038] like Figure 1 As shown: the diameter measuring photoelectric switch 3 is a non-contact switch quantity sensor.

[0039] The data controller may be a PLC controller

[0040] Specifically, the diameter measuring photoelectric switch 3 and the data controller are both devices currently available on the market.

[0041] like Figure 1 As shown: the axis of the diameter measuring photoelectric switch 3 intersects with the circumferential edge of the grinding wheel 2 at one point.

[0042] Specifically, the axis of the diameter measuring photoelectric switch 3 and the circumferential edge of the smallest grinding wheel 2 after use can still intersect at one point.

[0043] When the equipment is in use, the grinding head of the grinding machine mechanism 1 can achieve grinding at a grinding angle of 45° to 90°, and the data controller can automatically calculate the grinding wheel diameter at the different grinding angles;

[0044] (1) When the grinding head position angle of the grinding machine mechanism 1 is 90° or θ (45°≤θ<90°), after installing the new grinding wheel 2 and before starting grinding, the initial data for diameter measurement is saved in the data controller. These initial data only need to be completed during debugging. These data include: when the grinding wheel 2 moves to the detection point of the diameter measurement photoelectric switch (3), the new grinding wheel 2 reaches the transverse encoder (9) position D0 of the diameter measurement grating position detection point; the vertical distance H0 from the center point of the grinding wheel 2 to the axis of the diameter measurement grating, this height is fixed; the horizontal distance L0 from the edge of the grinding wheel 2 and the focus of the axis of the diameter measurement grating to the center point of the grinding wheel 2, this distance is also fixed; according to the Pythagorean theorem, at this time R0 and the radius of the new grinding wheel 2 are consistent.

[0045] (2) When the grinding head position angle of the grinding machine mechanism 1 is 90°, the position of the grinding wheel 2 is perpendicular to the axis of the diameter measuring photoelectric switch (3). When the grinding wheel 2 is used for a period of time and the diameter of the grinding wheel 2 is detected, when the grinding wheel 2 moves to the detection point of the diameter measuring photoelectric switch (3), the position D1 of the transverse encoder 9 when the grinding wheel 2 reaches the detection point of the diameter measuring grating position is recorded; the horizontal distance L1 between the focus of the edge of the grinding wheel 2 and the axis of the diameter measuring grating and the center point of the grinding wheel 2 is obtained by calculation; the vertical distance H1=H0 between the center point of the grinding wheel and the axis of the diameter measuring grating; according to the Pythagorean theorem, R1 is the radius of the grinding wheel 2 at this time, and 2R1 is the diameter of the grinding wheel 2 at this time.

[0046] When the grinding head position angle of the grinding machine mechanism 1 is θ (45°≤θ<90°), the grinding wheel 2 is used for a period of time. When the diameter of the grinding wheel 2 is detected, when the grinding wheel 2 moves to the detection point of the diameter measuring photoelectric switch (3), the position D2 of the transverse encoder 9 at which the new grinding wheel 2 reaches the diameter measuring grating position detection point is recorded; the horizontal distance L3 between the focus of the edge of the grinding wheel 2 and the axis of the diameter measuring grating and the center point of the grinding wheel 2 is obtained by calculation; the vertical distance H3=H0 between the center point of the grinding wheel 2 and the axis of the diameter measuring grating; according to the Pythagorean theorem, R3 is the radius of the grinding wheel 2 at this time, and 2R3 is the diameter of the grinding wheel 2 at this time.

[0047] In order to more clearly introduce the embodiment of the utility model, the following is an introduction from the method of use of the embodiment of the utility model:

[0048] After installing the new grinding wheel 2 and before grinding, measure the grinding head position of the 90° grinder mechanism 1 and the grinding head position of the θ angle grinder mechanism 1. The initial data of the new grinding wheel 2 include the lateral displacement distance D0 of the grinding head of the grinder mechanism 1, the horizontal distance L0 from the center point of the grinding wheel 2 to the intersection of the diameter measuring grating, and the vertical distance H0 from the center point of the grinding wheel 2 to the intersection of the axes of the distance measuring grating; and record the initial data in the data controller.

[0049] When the grinding head position of the grinding machine mechanism 1 is 90°, the grinding wheel 2 has been used for a period of time; after the function of measuring the diameter of the grinding wheel 2 is started, the grinding head of the grinding machine mechanism 1 continues to move in the direction of the principle transverse encoder 9 until the grinding wheel 2 intersects with the axis of the diameter measuring grating again (when the grinding head of the grinding machine mechanism 1 moves away from the direction of the transverse encoder 9, the data of the transverse encoder 9 increases), and the signal of the diameter measuring photoelectric switch 3 changes at this time. Here, the falling edge of the signal of the diameter measuring photoelectric switch 3 is used (when the diameter measuring photoelectric switch 3 does not detect the grinding wheel, the signal is often 1; when the diameter measuring photoelectric switch 3 When the grinding wheel 2 is detected, the signal is 0) and the position d1 of the transverse encoder 9 is recorded once; the horizontal distance change ΔL1=d1-D0 from the center point of the grinding wheel 2 to the axis of the diameter measuring photoelectric switch 3, the horizontal distance L1=L0-ΔL1 from the center point of the grinding wheel 2 to the intersection of the axes of the diameter measuring photoelectric switch 3, the vertical distance H1=H0 from the center point of the grinding wheel 2 to the intersection of the axes of the diameter measuring photoelectric switch 3; the Pythagorean theorem can be used to obtain the radius R12=L12+H12 of the grinding wheel 2 after use; thus, the diameter D1=2R1 of the grinding wheel 2 at this time can be obtained.

[0050] When the grinding head position of the grinding machine mechanism 1 is at an angle of θ (45°≤θ<90°), the grinding wheel 2 has been used for a period of time; after the function of measuring the diameter of the grinding wheel 2 is started, the grinding head of the grinding machine mechanism 1 continues to move in the direction of the principle transverse encoder 9 until the grinding wheel 2 intersects with the axis of the diameter measuring grating again (when the grinding head of the grinding machine mechanism 1 moves away from the direction of the transverse encoder 9, the data of the transverse encoder 9 increases), and the signal of the diameter measuring photoelectric switch 3 changes. Here, the falling edge of the signal of the diameter measuring photoelectric switch 3 is used (when the diameter measuring photoelectric switch 3 does not detect the grinding wheel, the signal is often 1; when .... When the diameter photoelectric switch 3 detects the grinding wheel, the signal is 0) when it arrives, the position d2 of the transverse encoder 9 is recorded once; the horizontal distance change from the center point of the grinding wheel 2 to the axis of the diameter measuring grating ΔL2=d2-D0, the horizontal distance change from the center point of the grinding wheel 2 to the intersection of the axis of the diameter measuring photoelectric switch 3 ΔL3=ΔL2 / cosθ, the horizontal distance L3=L0-ΔL3 from the center point of the grinding wheel 2 to the intersection of the axis of the diameter measuring photoelectric switch 3, the vertical distance H3=H0 from the center point of the grinding wheel 2 to the intersection of the axis of the diameter measuring photoelectric switch 3; R3 can be obtained by the Pythagorean theorem2 =L3 2 +H3 2 ; Thus, the diameter of the grinding wheel 2 at this time is D3=2R3.

[0051] The above is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. It will be apparent to those skilled in the art that various modifications to these embodiments are possible, and the general principles defined in the present application can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown in the present application, but will conform to the widest scope consistent with the principles and novel features applied for by the present application.

Claims

1. A device for measuring the diameter of a grinding wheel of a slab grinding machine, characterized in that: include: A grinding machine mechanism (1), wherein the left side of the grinding machine mechanism (1) is limitedly slidably arranged on a limit frame (7), a grinding wheel (2) is arranged at the grinding end of the grinding machine mechanism (1), a connecting bracket is arranged at the grinding head of the grinding machine mechanism (1), and a diameter measuring photoelectric switch (3) is arranged on the outer side of the connecting bracket; A traverse encoder (9) is arranged at the distal end of the grinding head of the grinding machine mechanism (1).

2. The device for measuring the grinding wheel diameter of a slab grinding machine according to claim 1, characterized in that: The diameter measuring photoelectric switch (3) comprises two parts, a photoelectric switch transmitting end and a photoelectric switch receiving end. The photoelectric switch transmitting end and the photoelectric switch receiving end are fixedly connected to two sides of the connecting bracket.

3. The device for measuring the grinding wheel diameter of a slab grinding machine according to claim 1, characterized in that: The lateral encoder (9) and the diameter measuring photoelectric switch (3) are both connected to a data controller via cable transmission.

4. The device for measuring the grinding wheel diameter of a slab grinding machine according to claim 1, characterized in that: A connecting frame (4) is provided at the upper end of the grinding machine mechanism (1), and the left end of the connecting frame (4) and the left side of the grinding machine mechanism (1) are both connected to a limit bearing (6) via a connecting block (5).

5. The device for measuring the grinding wheel diameter of a slab grinding machine according to claim 1, characterized in that: A circular arc limiting groove (8) is provided in the middle of the limiting frame (7), and the limiting bearing (6) is movably inserted into the circular arc limiting groove (8).

6. The device for measuring the grinding wheel diameter of a slab grinding machine according to claim 1, characterized in that: The traverse encoder (9) may be a wire-drawing absolute value encoder.

7. The device for measuring the diameter of the grinding wheel of a slab grinding machine according to claim 1, characterized in that: The diameter measuring photoelectric switch (3) is a non-contact switch quantity sensor.

8. The device for measuring the grinding wheel diameter of a slab grinding machine according to claim 3, characterized in that: The data controller may be a PLC controller.

9. The device for measuring the grinding wheel diameter of a slab grinding machine according to claim 1, characterized in that: The axis of the diameter measuring photoelectric switch (3) intersects with the circumferential edge of the grinding wheel (2) at one point.

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