Protective device and machine tool

Abstract

The utility model provides a protective device and a machine tool, and the protective device comprises a housing which is provided with an accommodating cavity used for accommodating a tool setting gauge, and the accommodating cavity is provided with a first opening at the top of the housing; the driving assembly is arranged in the shell and located in the containing cavity; and the cover plate is assembled on the shell in a sliding mode and connected with the driving assembly, the cover plate is arranged on the surface of the top of the shell, and the cover plate is used for moving to open or close the first opening under the driving action of the driving assembly. The tool setting gauge is arranged in the containing cavity of the shell, so that scrap iron is prevented from being sputtered on the surface of the optical fiber hole of the tool setting gauge during machining. The cover plate is arranged on the surface of the top of the shell, so that the cover plate is not limited by the size of the shell when sliding, the coverage range and the sliding stroke of the cover plate are large, the first opening in the top of the shell is large, and the main shaft can move to the tool setting gauge through the first opening at a high moving speed; therefore, the tool setting time of the machine tool is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool equipment, in particular to a protective device and a machine tool. Background Art

[0002] A tool setter is a device used to accurately measure and set tool positions on machine tools. It primarily ensures the relative position between the tool and the workpiece is accurate during machining. Traditional CNC machine tool tool setters lack protective devices, which can cause iron chips to splash onto the tool setter's fiber optic aperture during part machining, increasing the machine tool's alarm rate. Therefore, to prevent iron chips from splashing onto the tool setter's fiber optic aperture, protective devices are now installed.

[0003] In related art, a protective device includes a housing and a cover plate slidably connected to the housing. The tool setter is located within the housing, which has a window. The cover plate is located within the housing and can slide to open or seal the window in the housing. However, due to the limited internal space of the housing, the coverage range and sliding travel of the cover plate are relatively small, resulting in a correspondingly smaller window in the housing. To prevent the spindle from colliding with the housing, the speed of the spindle moving through the window in the housing to the tool setter needs to be reduced, which increases the tool setting time of the machine tool. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a protective device and a machine tool, aiming to solve the problem that the machine tool is contaminated by iron filings and causes alarm failure and the long tool setting time of the machine tool in the related technology.

[0005] In order to solve the above technical problems, the first aspect of the present invention provides a protective device for protecting a tool setting instrument provided on a machine tool bed, the protective device comprising:

[0006] A housing is provided with an accommodating cavity for accommodating the tool setting instrument, the bottom of the housing is used to be mounted on the bed, and the top of the housing is provided with a first opening communicating with the accommodating cavity;

[0007] a drive assembly, disposed in the housing and located in the accommodating cavity; and

[0008] A cover plate is slidably assembled on the shell and connected to the drive assembly. The cover plate is arranged on one side of the top surface of the shell and is used to move to open or cover the first opening under the drive of the drive assembly.

[0009] Optionally, a protrusion is provided on the edge of the cover plate, and the protrusion is connected to the drive assembly;

[0010] A first clearance notch is provided on the side wall of the top of the shell surrounding the first opening, the protrusion is adapted to the first clearance notch, and the protrusion is arranged opposite to the first clearance notch, and the first clearance notch and the protrusion are respectively located on opposite sides of the first opening.

[0011] Optionally, the housing includes:

[0012] A bottom plate, used for being mounted on the bed;

[0013] a side plate, disposed on the bottom plate; and

[0014] The top plate is arranged on the side plate and is distributed opposite to the bottom plate. The bottom plate, the side plate and the top plate together enclose the accommodating cavity. The first opening is arranged on the top plate, and the cover plate is slidably assembled on the top plate.

[0015] Optionally, the side plate is provided with a second opening communicating with the accommodating cavity, and the second opening is communicated with the first opening.

[0016] Optionally, a second clearance gap is provided on one side of the base plate, and the second clearance gap is used to avoid the tool setting instrument.

[0017] Optionally, the machine tool further comprises a cleaning assembly arranged on the bed, and the side wall of the bottom plate surrounding the second clearance gap is used to enclose with the tool setting instrument to form a drainage channel.

[0018] Optionally, the driving assembly includes:

[0019] a driving mechanism, disposed in the housing; and

[0020] A connecting component is provided on the driving mechanism, and the connecting component is connected to the cover plate.

[0021] Optionally, the connection component includes:

[0022] A fixing seat, arranged on the driving mechanism;

[0023] An adapter seat, comprising a first connecting portion and a second connecting portion, wherein the first connecting portion is arranged on the fixing seat, the second connecting portion is arranged on the first connecting portion, and an angle is formed between the first connecting portion and the second connecting portion; and

[0024] The connecting plates are connected to the second connecting portion and the cover plate respectively.

[0025] Optionally, the protective device further includes a detection component, which is disposed in the accommodating cavity and includes:

[0026] a sensor, disposed in the housing, wherein two sensors are provided; and

[0027] The detection piece is arranged on the connecting component, and the detection piece is arranged between the two sensors.

[0028] A second aspect of the present invention provides a machine tool, comprising:

[0029] Bed;

[0030] A main shaft is arranged on the bed;

[0031] a tool setting instrument, arranged on the bed; and

[0032] As described in any one of the above protective devices, the bottom of the shell is installed on the bed, and the tool setting instrument is arranged in the accommodating cavity.

[0033] Compared with the related art, the protective device and machine tool in the present invention have the following beneficial effects: by arranging the tool setting instrument in the housing cavity of the housing, iron chips are prevented from splashing on the surface of the optical fiber hole of the tool setting instrument during processing, thereby preventing the machine tool from alarming due to iron chips contamination. The cover plate is arranged on the top surface of the housing so that the cover plate is not restricted by the size of the housing when sliding, that is, the movement of the cover plate is not affected by the size of the housing cavity, thereby making the cover plate's coverage range and sliding stroke larger, and the first opening at the top of the housing can be made larger, so that the spindle can move through the first opening to the tool setting instrument at a faster moving speed; moreover, the spindle can be directly lowered from the top of the housing to the tool setting instrument, thereby greatly reducing the tool setting time of the machine tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 This is a schematic diagram of a machine tool provided by an embodiment of the present invention when the cover is in an open state;

[0036] Figure 2 This is a schematic diagram of a machine tool provided by an embodiment of the present invention when the cover plate is in a closed state;

[0037] Figure 3 It is a structural diagram of the protective device provided by an embodiment of the utility model;

[0038] Figure 4It is a schematic diagram of the assembly between the shell, cover and sensor in the protective device provided by an embodiment of the present utility model.

[0039] In the accompanying drawings, the various reference numerals represent: 1. shell; 11. bottom plate; 111. second clearance gap; 12. side plate; 13. top plate; 131. first clearance gap; 2. drive assembly; 21. drive mechanism; 22. connecting assembly; 221. fixing seat; 222. adapter seat; 2221. first connecting part; 2222. second connecting part; 223. connecting plate; 3. cover plate; 31. protrusion; 4. drainage channel; 5. detection assembly; 51. sensor; 52. detection piece; 53. mounting plate; 10. bed; 20. spindle; 30. tool setting instrument; 40. cleaning assembly; 50. protective device. DETAILED DESCRIPTION

[0040] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" or "several" means two or more, unless otherwise specifically defined.

[0043] Example:

[0044] See also Figure 1 、 Figure 2 and Figure 3 The present invention provides a machine tool comprising a bed 10, a spindle 20, a tool setter 30, a cleaning assembly 40, and a protective device 50. The spindle 20 is mounted on the bed 10, and the tool setter 30 and the cleaning assembly 40 are mounted on the bed 10. The protective device 50 is mounted on the bed 10, and the tool setter 30 and the cleaning assembly 40 are mounted within the protective device 50, thereby protecting the tool setter 30 and the cleaning assembly 40.

[0045] See also Figures 1 to 4 The protective device 50 includes a housing 1, a drive assembly 2, and a cover plate 3. The housing 1 is provided with a housing cavity for accommodating the tool setting probe 30. The bottom of the housing 1 is mounted on the bed 10, and the housing cavity has a first opening formed on the top of the housing 1. The drive assembly 2 is disposed in the housing 1 and is located within the housing cavity. The cover plate 3 is slidably assembled in the housing 1 and is connected to the drive assembly 2. The cover plate 3 is disposed on one side of the top surface of the housing 1 and is moved to open or close the first opening under the drive action of the drive assembly 2.

[0046] By placing the tool setter 30 within the housing cavity of the housing 1, iron chips are prevented from splashing onto the surface of the optical fiber hole of the tool setter 30 during machining, thereby preventing the machine tool from alarming due to iron chips contamination. The cover plate 3 is arranged on the top surface of the housing 1, so that the cover plate 3 is not restricted by the size of the housing 1 when sliding, that is, the movement of the cover plate 3 is not affected by the size of the housing cavity, thereby making the cover plate 3's coverage range and sliding stroke larger, and the first opening at the top of the housing 1 can be made larger, so that the spindle 20 can move through the first opening to the tool setter 30 at a faster moving speed; moreover, the spindle 20 can be directly lowered from the top of the housing 1 to the tool setter 30, thereby greatly reducing the tool setting time of the machine tool.

[0047] It should be noted that if Figure 2 As shown, when the spindle 20 is processing, the driving component 2 drives the cover plate 3 to move to cover the first opening, and the housing 1 and the cover plate 3 jointly prevent iron chips from splashing in the accommodating cavity, thereby protecting the driving component 2, the tool setting instrument 30 and the cleaning component 40; Figure 1 As shown, when the spindle 20 needs to be tool-set, the drive assembly 2 drives the cover plate 3 to move to open the first opening, and the spindle 20 moves through the first opening to the tool setter 30 for tool setting.

[0048] See also Figure 2 、 Figure 3 and Figure 4The edge of the cover plate 3 is provided with a protrusion 31, which is connected to the drive assembly 2 so that the drive assembly 2 drives the cover plate 3 to move through the protrusion 31. The protrusion 31 is provided to facilitate the connection between the cover plate 3 and the drive assembly 2. The top of the shell 1 is provided with a first clearance notch 131 on the side wall surrounding the first opening. The protrusion 31 is adapted to the first clearance notch 131, and the protrusion 31 is arranged opposite to the first clearance notch 131. The first clearance notch 131 and the protrusion 31 are respectively located on opposite sides of the first opening. When the cover plate 3 moves to cover the first opening, the protrusion 31 extends into the first clearance notch 131, and a portion of the protrusion 31 contacts the side wall of the top of the shell 1 surrounding the first opening. The two sides of the top of the shell 1 are of the same height, so as to avoid interference between the protrusion 31 and the top of the shell 1 and hindering the movement of the cover plate 3.

[0049] See also Figure 3 and Figure 4 The housing 1 includes a bottom plate 11, side plates 12, and a top plate 13. The bottom plate 11 is mounted on the bed 10; the side plates 12 are mounted on the bottom plate 11; and the top plate 13 is mounted on the side plates 12 and is arranged opposite to the bottom plate 11. The bottom plate 11, the side plates 12, and the top plate 13 together form a receiving cavity. A first opening is provided on the top plate 13. The cover plate 3 is slidably mounted on the top plate 13. The drive assembly 2 drives the cover plate 3 to move on the outer surface of the top plate 13 to open or close the first opening.

[0050] According to actual needs, the side panels 12 and the top panel 13 are connected as one, the bottom panel 11 and the side panels 12 are detachably connected, and the drive assembly 2 is fixed to the bottom panel 11. Therefore, during the installation of the protective device 50, the bottom panel 11 can be first fixed to the bed 10, and then the drive assembly 2 can be fixed to the bottom panel 11. After that, the side panels 12 can be fixed to the bottom panel 11, and finally the drive assembly 2 and the cover panel 3 can be connected to complete the installation of the protective device 50, making the installation method relatively simple and convenient. The cross-sections of the top panel 13 and the cover panel 3 are U-shaped, which can guide the sliding of the cover panel 3 and improve the smoothness of the sliding of the cover panel 3. Moreover, the top panel 13 is divided into two relatively distributed parts by the first opening, and the two parts of the top panel 13 are of the same height. A first clearance notch 131 is provided on the side of one part of the top panel 13, and the other part slides with the cover panel 3.

[0051] See also Figure 1 、 Figure 2 and Figure 3 The side plate 12 is provided with a second opening connected to the accommodating cavity, and the second opening is connected to the first opening, so that the spindle 20 can also be moved to the tool setting instrument 30 through the second opening, thereby improving the convenience of moving the spindle 20.

[0052] It should be noted that if Figure 1 and Figure 2As shown, the tool setter 30 is fixed to one end of the bed 10, while the spindle 20 performs machining at the other end. After the guard 50 is installed on the bed 10, a side panel 12 with a second opening is positioned at the end of the bed 10 where the tool setter 30 is located. This prevents iron chips from being ejected from the spindle 20 during machining through the second opening and into the accommodating cavity. Furthermore, the cover plate 3 can be configured to cover only the first opening, reducing its size and making it easier for the drive assembly 2 to move the cover plate 3.

[0053] See also Figure 1 、 Figure 2 and Figure 4 A second clearance gap 111 is provided on one side of the base plate 11, and the second clearance gap 111 is used to avoid the tool setter 30; wherein, before the base plate 11 is installed on the bed 10, the tool setter 30 has been installed on the bed 10, and the second clearance gap 111 is provided on the side of the base plate 11 to avoid the tool setter 30 hindering the base plate 11 from being installed on the bed 10.

[0054] See also Figure 1 and Figure 2 The cleaning assembly 40 can clean the tools on the spindle 20. The sidewalls of the base plate 11 surrounding the second clearance notch 111 are used to enclose the tool setting probe 30 to form a drainage channel 4. Debris and liquids cleaned from the tools on the spindle 20 can flow out through the drainage channel 4 and the grooves on the bed 10, avoiding stagnation in the housing 1's accommodating cavity. The cleaning assembly 40 can be located within the drainage channel 4 as needed.

[0055] See also Figure 1 、 Figure 2 and Figure 3 The drive assembly 2 includes a drive mechanism 21 and a connecting assembly 22. The drive mechanism 21 is disposed in the housing 1, specifically fixed to the base plate 11; the connecting assembly 22 is disposed in the drive mechanism 21, and the connecting assembly 22 is connected to the cover plate 3, wherein the connecting assembly 22 is connected to the protrusion 31. The drive mechanism 21 drives the connecting assembly 22 to move, and the cover plate 3 is driven by the connecting assembly 22 to move to open or close the first opening.

[0056] In some embodiments, as Figure 3 As shown, the driving mechanism 21 can be a cylinder, for example, a rodless cylinder, and the connecting assembly 22 is fixed to the slide of the rodless cylinder. Alternatively, the driving mechanism 21 can be a motor, for example, a linear module, and the connecting assembly 22 is fixed to the slide of the linear module.

[0057] See also Figure 3The connecting assembly 22 includes a fixing seat 221, an adapter seat 222 and a connecting plate 223. The fixing seat 221 is provided on the driving mechanism 21. For example, when the driving mechanism 21 is a rodless cylinder, the fixing seat 221 is fixed to the slide. The adapter seat 222 includes a first connection part 2221 and a second connection part 2222, the first connection part 2221 is arranged on the fixed seat 221, and the first connection part 2221 and the fixed seat 221 are arranged parallel to each other, so that the contact area between the first connection part 2221 and the fixed seat 221 is larger, which can improve the connection firmness between the adapter seat 222 and the fixed seat 221; the second connection part 2222 is arranged on the first connection part 2221, and there is an angle between the first connection part 2221 and the second connection part 2222, which can be 90°, that is, the first connection part 2221 and the second connection part 2222 are perpendicular to each other; the connecting plate 223 is respectively connected to the second connection part 2222 and the cover plate 3, and the connecting plate 223 and the second connection plate 2222 are arranged parallel to each other, so that the contact area between the second connection part 2222 and the connecting plate 223 is larger, which can improve the connection firmness between the adapter seat 222 and the connecting plate 223.

[0058] According to actual needs, the first connecting portion 2221 and the fixing seat 221 can be fixed by snapping. For example, the fixing seat 221 is provided with a snap block, and the first connecting portion 2221 is provided with a snap hole. The snap block is snapped into the snap hole to achieve mutual fixation between the first connecting portion 2221 and the fixing seat 221. The second connecting portion 2222 and the connecting plate 223 can be fixed by screws, and the connecting plate 223 and the raised portion 31 can be fixed by screws, so that the second connecting portion 2222 and the raised portion 31 can be connected separately through the connecting plate 223.

[0059] See also Figure 1 、 Figure 2 and Figure 3 The protective device 50 also includes a detection component 5, which is arranged in the accommodating cavity. The detection component 5 is used to detect whether the cover 3 has moved into place. The detection component 5 includes a sensor 51 and a detection piece 52. The sensor 51 is arranged in the shell 1 and is located in the accommodating cavity. There are two sensors 51, and the two sensors 51 are distributed with the connecting component 22 at intervals; the detection piece 52 is arranged in the connecting component 22, and the detection piece 52 is arranged between the two sensors 51. Among them, when the driving mechanism 21 drives the cover 3 to move to open the first opening, the detection piece 52 triggers one of the sensors 51; when the driving mechanism 21 drives the cover 3 to move to cover the first opening, the detection piece 52 triggers the other sensor 51, so that the control system of the machine tool can determine whether the cover 3 is in an open state or a closed state according to the detection data transmitted by the detection component 5, which facilitates the control system to control the spindle 20 to avoid the cover 3, prevent the machine tool from colliding, and reduce the tool setting time.

[0060] According to actual needs, the detection component 5 also includes a mounting plate 53, which is fixed on the side plate 12 of the shell 1. There are two mounting plates 53, and the two mounting plates 53 are fixed on the same side plate 12. The two sensors 51 are respectively fixed on the two mounting plates 53.

[0061] In some embodiments, as Figure 3 As shown, two sensors 51 are respectively disposed at the left and right ends of the side panel 12, and two detection pieces 52 are provided, one at the left and one at the right end of the fixing base 221. When the drive mechanism 21 drives the cover 3 to move to cover the first opening, the detection piece 52 at the left end of the fixing base 221 triggers the sensor 51 at the left end of the side panel 12; when the drive mechanism 21 drives the cover 3 to move to cover the first opening, the detection piece 52 at the right end of the fixing base 221 triggers the sensor 51 at the right end of the side panel 12.

[0062] In other embodiments, two sensors 51 are respectively disposed at the left and right ends of the side panel 12, and only one detection piece 52 is provided, which can be disposed in the middle of the fixing base 221. When the driving mechanism 21 drives the cover plate 3 to move to cover the first opening, the detection piece 52 triggers the sensor 51 at the left end of the side panel 12; when the driving mechanism 21 drives the cover plate 3 to move to cover the first opening, the detection piece 52 triggers the sensor 51 at the right end of the side panel 12.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A protective device for protecting a tool setting instrument arranged on a machine tool bed, characterized in that: The protective device comprises: A housing is provided with an accommodating cavity for accommodating the tool setting instrument, the bottom of the housing is used to be mounted on the bed, and the top of the housing is provided with a first opening communicating with the accommodating cavity; a drive assembly, disposed in the housing and located in the accommodating cavity; and A cover plate is slidably assembled on the shell and connected to the drive assembly. The cover plate is arranged on one side of the top surface of the shell and is used to move to open or cover the first opening under the drive of the drive assembly.

2. The protective device according to claim 1, characterized in that The edge of the cover plate is provided with a protrusion, and the protrusion is connected to the driving assembly; A first clearance notch is provided on the side wall of the top of the shell surrounding the first opening, the protrusion is adapted to the first clearance notch, and the protrusion is arranged opposite to the first clearance notch, and the first clearance notch and the protrusion are respectively located on opposite sides of the first opening.

3. The protective device according to claim 1, characterized in that The housing comprises: A bottom plate, used for being mounted on the bed; a side plate, disposed on the bottom plate; and The top plate is arranged on the side plate and is distributed opposite to the bottom plate. The bottom plate, the side plate and the top plate together enclose the accommodating cavity. The first opening is arranged on the top plate, and the cover plate is slidably assembled on the top plate.

4. The protective device according to claim 3, characterized in that: The side plate is provided with a second opening communicating with the accommodating cavity, and the second opening is communicated with the first opening.

5. The protective device according to claim 3, characterized in that: A second clearance gap is provided on one side of the base plate, and the second clearance gap is used to avoid the tool setting instrument.

6. The protective device according to claim 5, characterized in that: The machine tool further comprises a cleaning assembly arranged on the bed, and the side wall of the bottom plate surrounding the second clearance gap is used to enclose the tool setting instrument to form a drainage channel.

7. The protective device according to claim 1, characterized in that The drive assembly includes: a driving mechanism, disposed on the housing; and A connecting component is provided on the driving mechanism, and the connecting component is connected to the cover plate.

8. The protective device according to claim 7, characterized in that: The connection component includes: A fixing seat, arranged on the driving mechanism; An adapter seat, comprising a first connecting portion and a second connecting portion, wherein the first connecting portion is arranged on the fixing seat, the second connecting portion is arranged on the first connecting portion, and an angle is formed between the first connecting portion and the second connecting portion; and The connecting plates are connected to the second connecting portion and the cover plate respectively.

9. The protective device according to claim 7, characterized in that: The protective device further includes a detection component, which is disposed in the accommodating cavity and includes: a sensor, disposed in the housing and located in the accommodating cavity, wherein two sensors are provided; and The detection piece is arranged on the connecting component, and the detection piece is arranged between the two sensors.

10. A machine tool, characterized in that: include: Bed; A main shaft is arranged on the bed; A tool setting instrument is arranged on the bed; as well as, According to the protective device according to any one of claims 1 to 9, the bottom of the shell is installed on the bed, and the tool setting instrument is arranged in the accommodating cavity.

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