Non-contact signal transmitting and receiving system and machine tool

Abstract

The utility model discloses a non-contact type signal receiving and transmitting system and a machine tool, the non-contact type signal receiving and transmitting system is used for machine tool dynamic balance measurement, the non-contact type signal receiving and transmitting system comprises a receiver, an emitter and an installation part which are installed on a machine tool spindle, the emitter is installed on the installation part, and the installation part is installed on a protective door in a position-adjustable mode. And the transmitter is opposite to the receiver. According to the non-contact type signal receiving and transmitting system, the receiver is installed on the machine tool spindle, the transmitter is movably installed on the protective door through the installation piece, the position of the transmitter relative to the receiver is adjustable, and therefore when the installation position of the receiver is wrong, the transmitter can be adjusted. The position of the emitter and the position of the receiver can be within the instrument induction range by adjusting the position of the emitter, meanwhile, high-precision auxiliary installation parts are not needed any more, and waste of the auxiliary installation parts can be avoided.

Description

Technical Field

[0001] The embodiments of the present utility model relate to the technical field of machining, and particularly to a non-contact signal transceiver system and a machine tool. Background Art

[0002] A non-contact signal transceiver system includes a receiver and a transmitter that do not directly contact. To ensure the use effect, there are clear requirements for the allowable deviation range of the positions of the receiver and the transmitter after installation. In the installation of a dynamic balancer on, for example, a spindle, the assembly requirements for such non-contact and relatively moving receiver and transmitter are high, and the machining accuracy requirements for related parts are also high.

[0003] When the transmitter and the receiver of the non-contact signal transceiver system are installed, the transmitter and the receiver are directly fixedly installed through an auxiliary assembly component. This method causes the positions of the transmitter and the receiver to be fixed after installation. However, in order to ensure that the positions of the transmitter and the receiver after installation are within the sensing range of the instrument, the machining accuracy requirements for the auxiliary assembly component are extremely high, the auxiliary detection tools are costly, and when the installation positions of the transmitter and / or the receiver are incorrect, the repair space for the auxiliary assembly component is small, and it is easy to scrap the parts. Summary of the Utility Model

[0004] The embodiments of the present utility model provide a non-contact signal transceiver system and a machine tool to solve the technical problem that the installation positions of the current transmitter and / or receiver are not adjustable.

[0005] To achieve the above object, the embodiments of the present utility model provide a non-contact signal transceiver system for machine tool dynamic balance measurement, including a receiver, a transmitter, and a mounting member installed on a machine tool spindle. The transmitter is installed on the mounting member, and the mounting member is adjustably installed on a protective door, and the transmitter faces the receiver.

[0006] Preferably, the mounting member includes a mounting plate and a plurality of columns provided on the mounting plate. The protective door is provided with kidney-shaped holes corresponding to the columns. The length of the kidney-shaped hole is greater than the diameter of the column, and the extending direction of the length of the kidney-shaped hole is the same as the length direction of the protective door.

[0007] Preferably, the mounting member further includes a mounting body provided on the mounting plate. The mounting body is provided with a mounting hole for mounting the transmitter and a threaded hole for fixing the transmitter.

[0008] Preferably, the mounting plate is installed on the side of the protective door away from the spindle. The protective door is provided with a through hole facing the mounting hole. The through hole is for the transmitter to pass through, and the length of the cross section of the through hole along the length direction of the protective door is greater than the maximum length of the cross section of the transmitter.

[0009] Preferably, the mounting plate is mounted on a side of the protective door away from the main shaft. A through hole facing the mounting hole is provided on the protective door. The through hole is for the mounting body to pass through, and the length of the cross section of the through hole along the length direction of the protective door is greater than the maximum length of the cross section of the mounting body.

[0010] Preferably, the mounting plate is mounted on a side of the protective door close to the main shaft.

[0011] Preferably, the thickness of the mounting plate is adjustable, and the actual thickness of the mounting plate is at least 1 mm greater than the preset thickness.

[0012] Preferably, the protective door is rotatably mounted on the housing through a shaft pin. The shaft pin includes a first connecting member fixed to the housing and a second connecting member fixed to the protective door. The relative height of the second connecting member and the first connecting member is adjustable. After the relative height of the second connecting member and the first connecting member is adjusted, the second connecting member is rotatably connected to the first connecting member.

[0013] Preferably, the axial center distance between the transmitter and the receiver is less than 1.5 mm, and / or the gap between the transmitter and the receiver is less than 1.5 mm.

[0014] In a second aspect, a machine tool is provided, including the non-contact signal transceiver system, a machine tool main shaft, a protective door, a housing, and a processing system according to the embodiments of the present application. The processing system is disposed in the housing. The machine tool main shaft is connected to the processing system. The protective door is rotatably connected to the housing through a shaft pin.

[0015] The embodiments of the present utility model have the following beneficial effects: In the embodiments of the present utility model, the non-contact signal transceiver system mounts the receiver on the machine tool main shaft, and the transmitter is movably mounted on the protective door through a mounting member, so that the position of the transmitter relative to the receiver is adjustable. Thus, when there is an error in the installation position of the receiver, the position of the transmitter can be adjusted to make the positions of the transmitter and the receiver within the sensing range of the instrument. At the same time, high-precision auxiliary installation components are no longer required, and waste caused by auxiliary installation components can also be avoided.

[0016] In the above embodiments, the machine tool and the corresponding embodiments of the non-contact signal transceiver system belong to the same concept, and thus have the same technical effects as the corresponding embodiments of the non-contact signal transceiver system, which will not be elaborated here.

[0017] In addition to the purposes, features, and advantages described above, the embodiments of the present utility model have other purposes, features, and advantages. The following will refer to the accompanying drawings to further describe the embodiments of the present utility model in detail. Description of the Drawings

[0018] The accompanying drawings, which form a part of this application, are used to provide a further understanding of the embodiments of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the drawings:

[0019] Figure 1 is a schematic structural diagram of a non-contact signal transceiver system of the present utility model installed on a machine tool;

[0020] Figure 2 is a schematic structural diagram of a protective door of the machine tool of the present utility model.

[0021] Each label in the figure represents: 1. Transmitter; 2. Receiver; 3. Mounting member; 31. Mounting plate; 32. Column; 33. Mounting body; 331. Mounting hole; 332. Threaded hole; 4. Spindle; 5. Protective door; 51. Waist-shaped hole; 52. Axle pin; 6. Housing. Detailed implementation manners

[0022] The following further elaborates on the technical solutions of the embodiments of the present utility model in conjunction with the accompanying drawings of the specification and specific embodiments. In addition, unless otherwise defined, the technical terms or scientific terms used in the description of this application should be the ordinary meanings understood by those of ordinary skill in the field to which this application belongs. The words indicating directions such as "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", etc. used in the description of this application are only used to represent relative directions or positional relationships, rather than implying that the device or component must have a specific orientation, be constructed and operated in a specific orientation. When the absolute position of the described object changes, its relative positional relationship may also change accordingly. Therefore, it should not be construed as a limitation of this application. The terms "first", "second", "third" and similar terms used in the description of this application are only for descriptive purposes to distinguish different components and cannot be understood as indicating or implying relative importance. The words "a", "an" or "the" and similar words used in the description of this application should not be construed as an absolute limitation of quantity, but should be understood as having at least one. The terms "including" or "comprising" and similar terms used in the description of this application mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects.

[0023] It should also be noted that, unless otherwise clearly stipulated and defined, the similar terms such as "installed", "connected", and "linked" used in the description of this application should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can also be the communication inside two components. Those skilled in the art can understand their specific meanings in this application according to the specific situation.

[0024] For a grinding head body with a large moment of inertia, it is necessary to perform dynamic balancing on the main shaft to ensure the stability of processing. With the continuous improvement of the degree of automation, in order to reduce the avoidance of uncertainties in manual control, the spindle automatic balancer is more and more widely applied to the machine tool field. When installing this type of spindle automatic balancer, the receiver is installed on the spindle core and rotates at high speed with the spindle; the transmitter is installed on the protective door of the processing tool (i.e., the grinding wheel) and does not rotate.

[0025] In an ideal state, a transmitter installation hole is machined on the protective door so that the transmitter installation hole is coaxial with the main shaft, and the control accuracy requirement is within the assembly requirement range of the spindle automatic balancer; control the distance between the protective door and the receiver at the front end of the main shaft to meet the assembly requirement of the spindle automatic balancer, which requires the length of the axial mounting plate to be machined to meet the requirements. These two requirements are both based on the premise that after assembly and welding, they still meet the accuracy requirements. The processing difficulty is great, and once welding and assembly are completed and it is detected that the assembly requirements cannot be met, the space for repair is very small. Whether it is re-welding or discarding some parts, it is time-consuming and laborious, and it is difficult to guarantee the result.

[0026] To solve the above problems, as Figure 1 and Figure 2 shown, this embodiment proposes a non-contact signal transceiver system for machine tool dynamic balance measurement, which includes a receiver 2, a transmitter 1 and a mounting member 3 installed on the machine tool spindle 4. The transmitter 1 is installed on the mounting member 3, and the mounting member 3 is adjustably installed on the protective door 5, and the transmitter 1 faces the receiver 2.

[0027] Among them, the non-contact signal transceiver system in this embodiment is used for the spindle automatic balancer of machine tool dynamic balance measurement. After the transmitter 1 and the receiver 2 are installed, the axial center distance and the gap between the transmitter 1 and the receiver 2 need to be within the assembly requirement range of the spindle automatic balancer. Specifically in this embodiment, the axial center distance between the transmitter 1 and the receiver 2 is less than 1.5 mm, and the gap between the transmitter 1 and the receiver 2 is less than 1.5 mm.

[0028] In this embodiment, the non-contact signal transceiver system installs the receiver 2 on the machine tool spindle 4, and the transmitter 1 is movably installed on the protective door 5 through the mounting member 3, so that the position of the transmitter 1 relative to the receiver 2 is adjustable. Thus, when there is an error in the installation position of the receiver 2, the position of the transmitter 1 can be adjusted to keep the positions of the transmitter 1 and the receiver 2 within the sensing range of the instrument all the time. Since the relative positions of the transmitter 1 and the receiver 2 are adjustable, there is no need for high-precision auxiliary installation components to install the transmitter 1 and the receiver 2, and the waste of auxiliary installation components can also be avoided.

[0029] In a possible embodiment, the mounting member 3 includes a mounting plate 31 and a plurality of columns 32 provided on the mounting plate 31. The protective door 5 is provided with kidney-shaped holes 51 corresponding to the columns 32. The length of the kidney-shaped holes 51 is greater than the diameter of the columns 32, and the extending direction of the length of the kidney-shaped holes 51 is the same as the length direction of the protective door 5.

[0030] Specifically, the columns 32 in this embodiment are four threaded columns with threads, and the corresponding kidney-shaped holes 51 are also four. The kidney-shaped holes 51 are through holes. The mounting plate 31 and the protective door 5 form a stable fit through the four threaded columns. The mounting plate 31 is attached to the protective door 5. The length of the kidney-shaped holes 51 is greater than the diameter of the columns 32, and the diameter of the columns 32 is equal to the height of the kidney-shaped holes 51. At the same time, the extending direction of the length of the kidney-shaped holes 51 is the same as the length direction of the protective door 5. After the columns 32 pass through the kidney-shaped holes 51, the columns 32 can move along the length direction of the protective door 5, so that the mounting plate 31 moves along the length direction of the protective door 5, and the transmitter 1 mounted on the mounting plate 31 can also move along the length direction of the protective door 5. After the columns 32 move to the preset position, four nuts are screwed into the four threaded columns until the nuts tightly abut against the protective door, thus completing the fixation of the mounting plate 31 and the protective door 5, and realizing the adjustable position of the transmitter 1 along the length direction of the protective door 5.

[0031] In a possible embodiment, the mounting member 3 further includes a mounting body 33 provided on the mounting plate 31. The mounting body 33 is provided with a mounting hole 331 for mounting the transmitter 1 and a threaded hole 332 for fixing the transmitter 1.

[0032] Among them, the mounting body 33 and the mounting plate 31 are integrally formed. The shape of the mounting hole 331 is adapted to the shape of the transmitter 1, so that the transmitter 1 can be inserted into the mounting hole 331, and the transmitter 1 is fixed on the mounting body 33 by screwing a screw into the threaded hole 332.

[0033] In a possible embodiment, the mounting plate 31 is installed on the side of the protective door 5 away from the spindle 4. The protective door 5 is provided with a through hole facing the mounting hole 331. The through hole is used for the transmitter 1 to pass through. The length of the cross section of the through hole along the length direction of the protective door 5 is greater than the maximum length of the cross section of the transmitter 1.

[0034] It can be understood that after the transmitter 1 is fixed to the mounting body 33, since the mounting plate 31 is mounted on the side of the protective door 5 away from the main shaft 4, it is necessary to make the transmitter 1 penetrate the protective door 5. In this embodiment, the mounting body 33 is in close contact with the protective door 5. Therefore, the body of the transmitter 1 needs to pass through the through hole on the protective door 5, and the length of the cross section of the through hole along the length direction of the protective door 5 is greater than the maximum length of the cross section of the transmitter 1, so that the transmitter 1 can move along the length direction of the protective door 5.

[0035] In another possible embodiment, the mounting plate 31 is mounted on the side of the protective door 5 away from the main shaft 4. The protective door 5 is provided with a through hole facing the mounting hole 331 for the mounting body 33 to pass through. The length of the cross section of the through hole along the length direction of the protective door 5 is greater than the maximum length of the cross section of the mounting body 33.

[0036] Wherein, the transmitter 1 is completely arranged in the mounting hole 331. In order to make the transmitter 1 penetrate the protective door 5, the mounting body 33 is passed through the through hole on the protective door 5, and the length of the cross section of the through hole along the length direction of the protective door 5 is greater than the maximum length of the cross section of the mounting body 33, so that the mounting body 33 can move along the length direction of the protective door 5, and the mounting body 33 can better protect the transmitter 1 and prevent the side of the transmitter 1 from colliding with the protective door 5.

[0037] In yet another possible embodiment, the mounting plate 31 is mounted on the side of the protective door 5 close to the main shaft 4. The transmitter 1 is fixed to the mounting body 33. The mounting plate 31 is mounted on the protective door 5, and it is not necessary to open a through hole on the protective door 5, reducing the processing procedures. The mounting plate 31 moves along the length direction of the protective door 5 on the kidney-shaped hole 51.

[0038] In a possible embodiment, the protective door 5 is rotatably mounted on the housing 6 through a shaft pin 52. The shaft pin 52 includes a first connecting member fixed to the housing 6 and a second connecting member fixed to the protective door 5. The relative height of the second connecting member and the first connecting member is adjustable, and after the relative height of the second connecting member and the first connecting member is adjusted, it is rotatably connected to the first connecting member.

[0039] It can be understood that the transmitter 1 is movably mounted on the protective door 5 along the length direction of the protective door 5 through the mounting member 3. The protective door 5 is mounted on the housing 6 of the machine tool, and the height of the protective door 5 can be adjusted through the shaft pin 52 relative to the housing 6, so that the transmitter 1 can move along the width direction of the protective door 5.

[0040] Since the machine tool spindle 4 is fixed within the housing 6, the receiver 2 is fixed to the end of the spindle 4, while the transmitter 1 can move along the length and width directions of the protective door 5, thereby changing the axial position of the transmitter 1 and further changing the axial distance between the transmitter 1 and the receiver 2, ensuring that the axial distance between the transmitter 1 and the receiver 2 is adjusted to be less than 1.5 mm.

[0041] In a possible embodiment, the thickness of the mounting plate 31 is adjustable, and the actual thickness of the mounting plate 31 is at least 1 mm greater than the preset thickness.

[0042] Among them, in this embodiment, the mounting plate 31 is 1 mm thicker than the theoretical value. During the actual assembly process, through measurement, the actual thickness required for the mounting plate 31 is obtained, and then the mounting plate 31 is processed to reduce its thickness. When the thickness of the mounting plate 31 is less than the actual thickness, gaskets can be placed between the mounting plate 31 and the protective door 5 to ensure that the thickness dimension of the mounting plate 31 is qualified, so as to ensure that the axial clearance between the transmitter 1 and the receiver 2 meets the requirement of being less than 1.5 mm. In this way, the axial clearance between the transmitter 1 and the receiver 2 is adjusted.

[0043] The non-contact signal transceiver system provided in the above embodiments of the present application has at least the following characteristics:

[0044] 1. By moving the upright post 32 on the mounting plate 31 along the length direction of the protective door 5 within the kidney-shaped hole 51 and moving the protective door 5 along the width direction of the protective door 5 through the shaft pin 5, the transmitter 1 can move along the length and width directions of the protective door 5, thereby changing the axial position of the transmitter 1 and further changing the axial distance between the transmitter 1 and the receiver 2, ensuring that the transmitter 1 and the receiver 2 meet requirement 1.

[0045] 2. By changing the thickness of the mounting plate 31, the axial clearance between the transmitter 1 and the receiver 2 is adjusted to ensure that the axial clearance between the transmitter 1 and the receiver 2 meets the requirements.

[0046] 3. By adjusting the position of the transmitter 1, the axial distance and clearance between the transmitter 1 and the receiver 2 are made to meet the assembly requirement range of the spindle automatic balancer, reducing the installation accuracy between the transmitter 1 and the receiver 2 and avoiding waste of auxiliary installation parts.

[0047] On the other hand, an embodiment of the present application further provides a machine tool including the non-contact signal transceiver system of the embodiment of the present application. The machine tool further includes a machine tool spindle 4, a protective door 5, a housing 6, and a processing system. The receiver 2 is installed at the end of the machine tool spindle 4, the transmitter 1 is installed on the protective door 5 through the mounting member 3 in a position-adjustable manner, the processing system is arranged within the housing 6, the machine tool spindle 4 is connected to the processing system, and the protective door 5 is rotatably connected to the housing 6 through the shaft pin 52. When the protective door 5 is closed, the transmitter 1 faces the receiver 2.

[0048] The machine tool of this embodiment can assemble a non-contact signal transceiver system for a spindle automatic balancer with low cost, high efficiency and easy operation.

[0049] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A non-contact signal transceiver system for dynamic balance measurement of machine tools, characterized in that: The invention comprises a receiver (2) mounted on a machine tool spindle (4), a transmitter (1) and a mounting member (3), wherein the transmitter (1) is mounted on the mounting member (3), the mounting member (3) is mounted on a protective door (5) in an adjustable manner, and the transmitter (1) faces the receiver (2).

2. The contactless signal transceiving system according to claim 1, characterized in that: The mounting member (3) comprises a mounting plate (31) and a plurality of columns (32) arranged on the mounting plate (31); the protective door (5) is provided with waist-shaped holes (51) corresponding to the columns (32); the length of the waist-shaped holes (51) is greater than the diameter of the columns (32); and the length extension direction of the waist-shaped holes (51) is the same as the length direction of the protective door (5).

3. The contactless signal transceiving system according to claim 2, characterized in that: The mounting member (3) further comprises a mounting body (33) arranged on the mounting plate (31), the mounting body (33) being provided with a mounting hole (331) for mounting the transmitter (1) and a threaded hole (332) for fixing the transmitter (1).

4. The contactless signal transceiving system according to claim 3, characterized in that: The mounting plate (31) is mounted on a side of the protective door (5) away from the main shaft (4). The protective door (5) is provided with a through hole facing the mounting hole (331), the through hole being used for the transmitter (1) to pass through, and the length of the cross section of the through hole along the length direction of the protective door (5) is greater than the maximum length of the cross section of the transmitter (1).

5. The contactless signal transceiving system according to claim 3, characterized in that: The mounting plate (31) is mounted on a side of the protective door (5) away from the main shaft (4). The protective door (5) is provided with a through hole facing the mounting hole (331), the through hole being used for the mounting body (33) to pass through, and the length of the cross section of the through hole along the length direction of the protective door (5) is greater than the maximum length of the cross section of the mounting body (33).

6. The contactless signal transceiving system according to claim 2 or 3, characterized in that: The mounting plate (31) is mounted on a side of the protective door (5) close to the main shaft (4).

7. The contactless signal transceiving system according to claim 2, characterized in that: The thickness of the mounting plate (31) is adjustable, and the actual thickness of the mounting plate (31) is at least 1 mm greater than the preset thickness.

8. The contactless signal transceiving system according to claim 1, characterized in that: The protective door (5) is rotatably mounted on the housing (6) via an axle pin (52); the axle pin (52) comprises a first connecting member fixed to the housing (6) and a second connecting member fixed to the protective door (5); the relative height between the second connecting member and the first connecting member is adjustable; the second connecting member is rotatably connected to the first connecting member after the relative height with the first connecting member is adjusted.

9. The contactless signal transceiving system according to claim 1, characterized in that: The axial center distance between the transmitter (1) and the receiver (2) is less than 1.5 mm, And / or, the gap between the transmitter (1) and the receiver (2) is less than 1.5 mm.

10. A machine tool, characterized in that: It comprises the non-contact signal transceiver system as claimed in any one of claims 1 to 9, a machine tool spindle (4), a protective door (5), a housing (6) and a processing system, wherein the processing system is arranged in the housing (6), the machine tool spindle (4) is connected to the processing system, and the protective door (5) is rotatably connected to the housing (6) via a shaft pin (52).

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