Machine tool transmission device and machine tool

Abstract

The utility model discloses a machine tool transmission device and a machine tool. A driving part of the machine tool transmission device is installed on a base, and a workbench is connected with the driving part and can be driven by the driving part to reciprocate in the first direction; the telescopic protection assembly is installed on the base, a fit clearance is formed between the telescopic protection assembly and the base, the telescopic protection assembly is provided with a protection space and an avoiding opening communicating with the protection space, the sides, close to the driving component, of the driving component and the workbench are located in the protection space, and the side, away from the driving component, of the workbench extends out of the protection space along the avoiding opening. The telescopic protection assembly can be driven by the workbench to stretch out and draw back in the first direction, and the fit clearance communicates with the outside of the protection space and the protection space. The air blowing assembly is installed on the base, located outside the protection space and adjacent to the fit clearance. The problem that a protection structure cannot effectively prevent fine particles with extremely small particle sizes from being dispersed into the transmission device is solved.

Description

Technical Field

[0001] The present application relates to the field of mechanical processing technology, and in particular to a machine tool transmission device and a machine tool. Background Art

[0002] The transmission device of the machine tool mainly includes high-precision components such as servo motors, ball screw nut pairs, linear guides, hydrostatic guides, and grating scales. During the processing of graphite machine tools, a large amount of graphite dust will be generated, and the graphite dust will spread into the transmission device of the machine tool. Graphite dust will clog and corrode the high-precision components inside the transmission device, and will also contaminate the hydraulic oil, resulting in reduced processing accuracy of the machine tool and seriously affecting the service life of the machine tool. In order to prevent graphite dust from entering the transmission device, a protective structure is usually installed between the fixed end and the movable end of the machine tool to prevent external chips, graphite dust and other fine particles from entering the transmission device. However, the current protective structure cannot effectively prevent extremely small chips, graphite dust and other fine particles from diffusing into the transmission device. Utility Model Content

[0003] The main purpose of the present application is to provide a machine tool transmission device and a machine tool to solve the problem that the protective structure mentioned in the background technology cannot effectively prevent fine particles such as extremely small chips and graphite dust from diffusing into the transmission device.

[0004] According to one aspect of the present application, there is provided a machine tool transmission device, comprising:

[0005] A transmission assembly, the transmission assembly comprising a base, a driving component and a workbench, the driving component being mounted on the base, the workbench being connected to the driving component and being capable of reciprocating along a first direction under the drive of the driving component;

[0006] A telescopic protection component, wherein the telescopic protection component is installed on the base and has a matching gap between the base and the telescopic protection component, the telescopic protection component is provided with a protection space and an avoidance opening connected to the protection space, the driving component and the side of the workbench close to the driving component are located in the protection space, and the side of the workbench away from the driving component extends out of the protection space along the avoidance opening, the telescopic protection component can be extended and retracted along a first direction under the drive of the workbench, and the matching gap connects the outside of the protection space and the protection space;

[0007] The blowing assembly is installed on the base, and the blowing assembly is located outside the protection space and adjacent to the matching gap.

[0008] Furthermore, at least two chip grooves are provided on the base, and at least two of the chip grooves are respectively located on opposite sides of the telescopic protective component along the second direction. Support portions are provided on the side walls of at least two of the chip grooves close to the telescopic protective component along the second direction, and the support portions at least partially cover the notches of the chip grooves. Along the second direction, the opposite sides of the telescopic protective component are respectively connected to the support portions and can move relative to the support portions during telescopic extension and retraction along the first direction. The fitting gap is located between the telescopic protective component and the support portion and is connected to the chip groove. The blowing component is installed on the support portion, offset to one side of the telescopic protective component and located in the chip groove.

[0009] Further, the length of the fitting gap extends along a first direction, and the blowing assembly comprises:

[0010] An air supply pipe is installed on the support portion along the first direction and close to the connection between the fitting gap and the chip removal groove. The length of the air supply pipe extends along the first direction, and an air supply channel is arranged in the air supply pipe.

[0011] An air blowing component is arranged on the air supply pipe, and the air blowing component includes an air blowing port connected to the air supply channel, and the air blowing port is located on a side of the air blowing component away from the fitting gap and connected to the chip removal groove.

[0012] Furthermore, a plurality of air outlets communicating with the air supply channel are arranged on the tube wall of the air supply tube away from the fitting gap, and the plurality of air outlets are arranged at intervals along the first direction, and the air blowing component comprises:

[0013] A one-way valve, wherein the one-way valve comprises a plurality of one-way valves, and the plurality of one-way valves are arranged at the plurality of air outlets in a one-to-one correspondence, and the air outlet is located at a side of the one-way valve away from the air outlet.

[0014] Furthermore, the telescopic protection component is fixedly connected to the base on two opposite sides along a first direction, and the supporting part includes a support plate, and along the first direction, the length of the support plate extends to two opposite sides of the telescopic protection component, and a slide groove is provided on one side of the telescopic protection component close to the support plate, and the support plate is located in the slide groove and has the matching gap with the inner wall surface of the slide groove, and the outer wall surface of the slide groove, the support plate and the inner wall surface of the chip groove form an installation groove connected to the chip groove, and the blowing component is installed in the installation groove.

[0015] Furthermore, the support portion further includes:

[0016] A flow guide member is installed in the installation groove and covers the fitting gap. The flow guide member is provided with a flow guide groove connected to the chip removal groove. The length of the flow guide groove extends along the first direction. The blowing assembly is installed in the flow guide groove.

[0017] Furthermore, the drainage groove extends out of the slot of the mounting groove on one side away from the support plate, and the width of the portion of the drainage groove extending out of the slot of the mounting groove along the second direction gradually increases in the direction away from the support plate.

[0018] Further, the protection space includes a first protection space, the avoidance opening includes a first avoidance opening, and the telescopic protection assembly includes:

[0019] A first telescopic protective cover body, wherein two opposite sides of the first telescopic protective cover body along a first direction are fixedly connected to the base and are surrounded by the base to form the first protective space, the first avoidance opening is arranged on a side of the first telescopic protective cover body away from the base and is connected to the first protective space, the driving component and the side of the workbench close to the driving component are located in the first protective space, and the side of the workbench away from the driving component extends out of the first protective space along the first avoidance opening;

[0020] Wherein, the sliding groove is arranged on two opposite sides of the first telescopic protective cover along the second direction.

[0021] Further, the protection space includes a second protection space, the avoidance opening also includes a second avoidance opening, and the telescopic protection assembly also includes:

[0022] A second telescopic protective cover body is installed in the first protective space and is surrounded by the base to form the second protective space. The driving component and the side of the workbench close to the driving component are located in the second protective space. The second avoidance opening is arranged on the side of the second telescopic protective cover body away from the base and connects the second protective space and the first protective space. The side of the workbench away from the driving component extends out of the first protective space along the second avoidance opening and the first avoidance opening in sequence.

[0023] On the other hand, the present application also provides a machine tool, which includes the machine tool transmission device described in the above technical solution.

[0024] In the present application, an air blowing assembly is provided at the fitting gap between the telescopic protective assembly and the base, and the air blowing assembly blows air in a direction away from the fitting gap, so that an air flow barrier is formed at the fitting gap between the telescopic protective assembly and the base. The air flow barrier can effectively prevent extremely small chips, graphite dust and other fine particles from entering the protective space from the outside of the machine tool transmission device through the fitting gap, so as to ensure that the high-precision components in the protective space are protected from contamination by chips, graphite dust and other fine particles, which is beneficial to improving the machining accuracy and product quality of the machine tool and extending the service life of the machine tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0026] Figure 1 It is a structural schematic diagram of the machine tool transmission device disclosed in this application;

[0027] Figure 2 This is a schematic diagram of the structure of the machine tool transmission device disclosed in the present application when the workbench is not installed;

[0028] Figure 3 A cross-sectional view of a machine tool transmission device disclosed in the present application;

[0029] Figure 4 for Figure 3 The enlarged view of P in the middle;

[0030] Figure 5 This is a schematic diagram of the structure of the blowing assembly disclosed in this application;

[0031] Figure 6 A schematic diagram of the drainage member disclosed in the present application;

[0032] Figure 7 It is a structural schematic diagram of the machine tool transmission device disclosed in the present application when the first telescopic protective cover is not installed.

[0033] The above drawings include the following reference numerals:

[0034] 11. Base; 111. Chip removal groove; 112. Support part; 1121. Support plate; 1122. Drainage member; 12. Driving member; 13. Workbench; 2. Telescopic protection assembly; 20. Fitting clearance; 21. Avoidance port; 22. Slide; 23. Mounting groove; 241. Drainage groove; 25. First telescopic protection cover; 251. First telescopic hood; 252. Second telescopic hood; 253. First side shield; 26. Second telescopic protection cover; 261. Third telescopic hood; 262. Fourth telescopic hood; 263. Second side shield; 3. Blowing assembly; 31. Air supply pipe; 311. Air outlet; 32. Blowing member; 321. Blowing port; 322. One-way valve. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0037] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0038] The transmission device of the machine tool mainly includes high-precision components such as servo motors, ball screw nut pairs, linear guides, hydrostatic guides, and grating scales. During the processing of graphite machine tools, a large amount of graphite dust will be generated, and the graphite dust will spread into the transmission device of the machine tool. Graphite dust will clog and erode the high-precision components inside the transmission device, and will also pollute the hydraulic oil, resulting in reduced processing accuracy of the machine tool, seriously affecting the service life of the machine tool. In order to prevent graphite dust from entering the transmission device, a telescopic protective cover such as a steel plate protective cover, an accordion protective cover, and a screw protective cover is usually installed between the fixed end and the movable end of the machine tool, or a double-layer sealing protection structure is installed between the fixed end and the movable end of the machine tool to prevent graphite dust from entering the transmission device. However, the particle size of graphite dust is extremely small, and there is even micron and nanometer-level graphite dust. Therefore, graphite dust can still diffuse into the transmission device.

[0039] In order to solve the above problems, although the present embodiment can install a positive pressure air circuit inside the transmission device to form a positive pressure environment to prevent graphite dust from entering the transmission device, the structure inside the transmission device is complex, which will cause serious uneven distribution of airflow in the positive pressure air circuit, and graphite dust cannot be effectively prevented from entering the transmission device. It is also difficult to form an internal space with good sealing performance inside the transmission device, which will make it difficult to form a positive pressure environment inside the transmission device, and it is impossible to ensure that the pressure of the airflow is large enough to prevent graphite dust from entering. In addition, the positive pressure air circuit needs to use a high-power compressor to form a positive pressure environment inside the transmission device, resulting in high cost of use.

[0040] In view of the above problems, the first embodiment of the utility model provides a machine tool transmission device, see Figures 1 to 7 .

[0041] like Figures 1 to 7 As shown, a machine tool transmission device includes a transmission assembly, a telescopic protection assembly 2 and a blowing assembly 3. The transmission assembly includes a base 11, a driving component 12 and a workbench 13. The driving component 12 is installed on the base 11. The workbench 13 is connected to the driving component 12 and can be driven by the driving component 12 along a first direction (such as Figure 1The direction indicated by the arrow X shown in the figure represents the moving direction of the workbench, specifically the length direction of the machine tool transmission device) and reciprocates. The telescopic protection component 2 is installed on the base 11 and has a fitting gap 20 with the base 11. The telescopic protection component 2 is provided with a protection space and an avoidance opening connected to the protection space. The side of the driving component 12 and the workbench 13 close to the driving component 12 is located in the protection space, and the side of the workbench 13 away from the driving component 12 extends out of the protection space along the avoidance opening 21. The telescopic protection component 2 can be telescoped in a first direction driven by the workbench 13, and the fitting gap 20 connects the outside of the protection space and the protection space. The blowing component 3 is installed on the base 11, and the blowing component 3 is located outside the protection space and is arranged adjacent to the fitting gap 20. The blowing component 3 is used to blow air in a direction away from the fitting gap 20.

[0042] In this embodiment, a blowing assembly 3 is provided adjacent to the fitting gap 20 between the telescopic protective assembly 2 and the base 11, and the blowing assembly 3 blows air in a direction away from the fitting gap 20, so that an air flow barrier is formed at the fitting gap 20 between the telescopic protective assembly 2 and the base 11. The air flow barrier can effectively prevent extremely small chips, graphite dust and other fine particles from passing through the fitting gap 20 from the outside of the machine tool transmission device into the protective space, so as to ensure that the high-precision components in the protective space are protected from contamination by chips, graphite dust and other fine particles, which is beneficial to improving the machining accuracy and product quality of the machine tool and extending the service life of the machine tool.

[0043] In addition, the blowing assembly 3 is installed outside the protective space. Without using a high-power compressor, a strong airflow can be formed at the fitting gap 20 to prevent graphite dust from entering the protective space along the fitting gap, which can greatly reduce the energy consumption of the machine tool using the machine tool transmission device and reduce the use cost of the machine tool using the machine tool transmission device.

[0044] The telescopic protection assembly 2 is provided with a protection space and can be telescopic along the first direction with the workbench 13. The telescopic protection assembly 2 can cover the driving component 12 and the side of the workbench 13 close to the driving component 12 in the protection space. During the reciprocating movement of the workbench 13 in the first direction, the driving component 12 and the side of the workbench 13 close to the driving component 12 can also be always located in the protection space, further preventing external chips, graphite dust and other fine particles from entering the protection space, and protecting the transmission components in the protection space from being contaminated.

[0045] like Figures 1 to 4 As shown, in one embodiment, at least two chip removal grooves 111 are provided on the base 11, and the at least two chip removal grooves 111 are respectively located in the telescopic protection component 2 along the second direction (such as Figure 1The direction indicated by the arrow Y shown in the figure, the second direction is the direction perpendicular to the first direction, specifically the width direction of the machine tool transmission device) on opposite sides. At least two chip grooves 111 are provided with support parts 112 on the side walls close to the telescopic protection component 2 along the second direction, and the support parts 112 at least partially cover the notches of the chip grooves 111. Along the second direction, the opposite sides of the telescopic protection component 2 are respectively connected to the support parts 112 and can move relative to the support parts 112 during the telescopic process along the first direction. The fitting gap 20 is located between the telescopic protection component 2 and the support part 112 and is connected to the chip groove 111. The air blowing component 3 is installed on the support part 112, which is offset to one side of the telescopic protection component 2 and is located in the chip groove 111.

[0046] At least two chip removal grooves 111 are arranged on the base 11, which can improve the discharge efficiency of chips and graphite dust generated during the machine tool processing. At least two chip removal grooves 111 are respectively located on opposite sides of the telescopic protection component 2, ensuring that the chips and graphite dust generated during the machine tool processing can be effectively guided to the chip removal groove 111. At the same time, the telescopic protection component 2 has a certain protection ability and can prevent large particles of chips from entering the protection space. A support portion 112 is arranged on the side wall of the chip removal groove 111 and the opposite sides of the telescopic protection component 2 are respectively connected to the support portion 112, and the support portion 112 can cover part of the notch of the chip removal groove 111 to install and support the telescopic protection component 2 on the chip removal groove 111. The support portion 112 can provide a stable support for the telescopic protection component 2, so that the telescopic protection component 2 can be telescopically moved along the first direction, ensuring the stability of the telescopic movement of the telescopic protection component 2 along the first direction. The matching gap 20 is located between the telescopic protection component 2 and the support portion 112 and is connected to the chip removal groove 111. When the blowing component 3 is working, the airflow blown out by the blowing component 3 can blow fine particles such as chips and graphite dust into the chip groove 111. The chip groove 111 can discharge fine particles such as chips and graphite dust in time, prevent fine particles from wandering or staying around the fitting gap 20, and reduce the risk of fine particles entering the protective space along the fitting gap 20 under the action of external wind when the blowing component 3 is not working, further protecting precision instruments such as the driving components 12 in the protective space from contamination by fine particles such as chips and graphite dust.

[0047] The chip flute 111 may be a spiral chip flute 111. The spiral chip flute 111 can quickly push the chips into the chip collector to prevent dust diffusion, which is beneficial to reduce the dispersion of fine particles into the protective space. In addition, during the machining process of the machine tool, the spiral chip flute 111 automatically discharges the chips from the machine tool without manual intervention, which can improve the chip removal efficiency.

[0048] like Figures 4 to 5As shown, in one embodiment, the length of the fitting gap 20 extends along the first direction, and the blowing assembly 3 includes an air supply pipe 31 and an air blowing component 32. Along the first direction, the air supply pipe 31 is installed on the support portion 112 and close to the connection between the fitting gap 20 and the chip removal groove 111. The length of the air supply pipe 31 extends along the first direction, and an air supply channel is arranged in the air supply pipe 31. The air blowing component 32 is arranged on the air supply pipe 31, and the air blowing component 32 includes an air blowing port 321 connected to the air supply channel. The air blowing port 321 is located on the side of the air blowing component 32 away from the fitting gap 20 and connected to the chip removal groove 111. The length of the air supply pipe 31 extends along the first direction, corresponding to the length of the fitting gap 20, ensuring that the airflow generated by the blowing assembly 3 can be diffused along the length direction of the entire fitting gap 20, and can effectively prevent fine particles such as graphite dust from entering the interior of the transmission device through the fitting gap 20. The blowing port 321 is connected to the air supply channel, and the gas in the air supply channel can be blown out. The blown gas forms an airflow barrier between the matching gap 20 and the chip removal groove 111, and blows fine particles such as chips and graphite dust into the chip removal groove 111, ensuring that the chip removal groove 111 can discharge fine particles such as chips and graphite dust in time, preventing fine particles such as graphite dust from diffusing to the matching gap 20 again, and preventing fine particles from wandering around the outside of the protective space. Among them, an air pump and an air tank are provided at one end of the air supply pipe 31, and the air pump can transport the gas in the gas tank to the air supply channel.

[0049] In one embodiment, a plurality of air outlets 311 connected to the air supply channel are arranged on the pipe wall of the air supply pipe 31 away from the fitting gap 20, and the plurality of air outlets 311 are arranged at intervals along the first direction, and the air blowing component 32 includes a one-way valve 322. The one-way valve 322 includes a plurality of one-way valves 322, and the plurality of one-way valves 322 are arranged at the plurality of air outlets 311 in a one-to-one correspondence, and the air blowing port 321 is located on the side of the one-way valve 322 away from the air outlet 311. The plurality of air outlets 311 are arranged at intervals along the first direction to ensure that the airflow is distributed over the entire length of the fitting gap 20, which helps to more comprehensively block fine particles such as graphite dust from entering the protective space. The one-way valve 322 ensures that the airflow can only flow from the air supply channel to the side away from the fitting gap 20, so that the airflow is blown away from the fitting gap 20, so that the fine particles such as chips or dust outside the protective space are away from the fitting gap 20 and are discharged in time through the chip removal groove 111, so as to prevent the fine particles from lingering around the outside of the protective space, so as to effectively prevent the fine particles such as graphite dust from entering the protective space. Among them, the air outlet 311 can be evenly spaced along the first direction, which is more conducive to ensuring that the airflow is evenly distributed over the entire length of the fitting gap 20, ensuring that an airflow barrier can be formed over the entire length of the fitting gap 20, and preventing graphite dust from entering the transmission device.

[0050] In one embodiment, the telescopic protection assembly 2 is fixedly connected to the base 11 at two opposite sides along the first direction. The support portion 112 includes a support plate 1121. The length of the support plate 1121 extends to two opposite sides of the telescopic protection assembly 2 along the first direction. A slide groove 22 is provided on one side of the telescopic protection assembly 2 close to the support plate 1121. The support plate 1121 is located in the slide groove 22 and has a matching gap 20 with the inner wall surface of the slide groove 22. The outer wall surface of the slide groove 22, the support plate 1121 and the inner wall surface of the chip groove 111 form a mounting groove 23 connected to the chip groove 111. The air blowing assembly 3 is installed in the mounting groove 23. The telescopic protection assembly 2 is fixedly connected to the base 11 at two opposite sides along the first direction, so that the telescopic protection assembly 2 can be telescoped in the first direction, ensuring that the protection space of the telescopic assembly covers the driving component 12 and the side of the workbench 13 close to the driving component 12. The blowing assembly 3 is installed in the mounting groove 23, so that the blowing assembly can form a strong airflow barrier in the mounting groove 23, blocking fine particles from entering the protective space along the matching gap. In this embodiment, the blowing assembly 3 is stably fixed on the support plate 1121 and located in the mounting groove 23, which is not only convenient for installation, but also conducive to ensuring the structural stability of the blowing assembly 3.

[0051] like Figure 6 As shown, in one embodiment, the support portion 112 further includes a guide member 1122. The guide member 1122 is installed in the installation groove 23 and covers the fitting gap 20. The guide member 1122 is provided with a guide groove 241 connected to the chip removal groove 111, the length of the guide groove 241 extends along the first direction, and the blowing assembly 3 is installed in the guide groove 241. The guide groove 241 can provide a clear flow path for the airflow generated by the blowing assembly 3, and the airflow can flow along the inner wall surface of the guide groove 241, so that the airflow flows out in the direction away from the fitting gap 20. Ensure that the airflow blows fine particles such as chips and graphite dust away from the fitting gap 20, and prevents fine particles such as chips and graphite dust from entering the protective space from the fitting gap 20. In addition, the guide member 1122 covers the fitting gap 20, further preventing fine particles such as graphite dust from entering the protective space through the fitting gap 20, and further improving the airtightness of the protective space.

[0052] Among them, the drainage groove 241 extends out of the slot of the mounting groove 23 on one side away from the support plate 1121, and the width of the portion of the drainage groove 241 extending out of the slot of the mounting groove 23 along the second direction gradually increases in the direction away from the support plate 1121, so that the portion of the drainage groove 241 extending out of the slot of the mounting groove 23 is in a trumpet shape, which can more effectively guide the airflow out of the mounting groove 23 and blow the gas toward the chip groove 111, thereby expanding the flow range of the airflow and further preventing fine particles such as graphite dust from entering the protective space through the fitting gap 20.

[0053] In one embodiment, the protection space includes a first protection space, the avoidance opening 21 includes a first avoidance opening, and the telescopic protection assembly 2 includes a first telescopic protection cover 25. The first telescopic protection cover 25 is fixedly connected to the base 11 on opposite sides along the first direction and is surrounded by the base 11 to form a first protection space. The first avoidance opening is arranged on the side of the first telescopic protection cover 25 away from the base 11 and is connected to the first protection space. The side of the driving component 12 and the workbench 13 close to the driving component 12 is located in the first protection space, and the side of the workbench 13 away from the driving component 12 extends out of the first protection space along the first avoidance opening. The first telescopic protection cover 25 and the base 11 are surrounded to form the first protection space, and the side of the driving component 12 and the workbench 13 close to the driving component 12 is wrapped in the first protection space, protecting the driving component 12 and the side of the workbench 13 close to the driving component 12 from being contaminated by fine particles such as chips and graphite dust.

[0054] The slide grooves 22 are disposed on opposite sides of the first telescopic protective cover 25 along the second direction. The first telescopic protective cover 25 is slidably connected to the support plate 1121 to ensure that the first telescopic protective cover 25 can slide smoothly and stably with the workbench 13 .

[0055] The part of the base located in the protective space is provided with a mounting groove, and the groove walls on the two opposite sides of the mounting groove along the second direction are provided with slide rails, and the length of the slide rails extends along the first direction. The driving component 12 includes a motor, a screw and a transmission nut. Along the first direction, the screw is rotatably installed in the mounting groove. The transmission nut is screwed on the screw and fixedly connected to the side of the workbench 13 close to the base. When the screw rotates under the drive of the motor, the transmission nut drives the workbench 13 to reciprocate along the first direction. A slider adapted to the slide rail is also provided on the side of the workbench 13 close to the mounting groove. The slider is located in the slide rail to guide the workbench 13 to move stably along the first direction. When the motor drives the screw to rotate, the transmission nut cooperates with the screw thread to drive the workbench 13 to reciprocate along the first direction, and the slider cooperates with the slide rail and is slidably connected to make the workbench 13 reciprocate along the first direction. The transmission nut, lead screw, slide rail, slider, etc. are all located in the protective space to prevent chips, graphite dust and other fine particles from entering the protective space to corrode components such as the lead screw and transmission nut, thereby ensuring the reliability of the drive component 12 driving the workbench 13 to reciprocate in the first direction.

[0056] Among them, the first telescopic protective cover body 25 includes a first telescopic cover 251, a second telescopic cover 252 and a first side shield 253. The first telescopic cover 251 and the second telescopic cover 252 are respectively located on opposite sides of the workbench 13 along the first direction. Along the first direction, the end of the first telescopic cover 251 away from the workbench 13 is fixed to the base 11, and the end of the first telescopic cover 251 close to the workbench 13 is connected to the workbench 13. Along the first direction, the end of the second telescopic cover 252 away from the workbench 13 is fixed to the base 11, and the end of the second telescopic cover 252 close to the workbench 13 is connected to the workbench 13. The first telescopic cover 251 and the second telescopic cover 252 are both provided with a slide groove 22 near the support plate 1121, and the first telescopic cover 251 and the second telescopic cover 252 are slidably connected to the support plate 1121 through the slide groove 22, so that the first telescopic cover 251 and the second telescopic cover 252 can be telescopically changed along the first direction with the workbench. The first side shield 253 includes at least two, at least two first side shields 253 are respectively installed on opposite sides of the workbench 13 along the second direction, and the first side shield 253 is located between the workbench 13 and the base 11, along the second direction, one end of the first side shield 253 is fixedly connected to the workbench 13, and the other end of the first side shield 253 is slidably connected to the support plate 1121 through the slide groove 22. Along the first direction, the opposite sides of the first side shield 253 are respectively connected to the first telescopic cover 251 and the second telescopic cover 252, so as to form a first protective space with the first telescopic cover 251 and the second telescopic cover 252. The matching gap is specifically located between the inner wall surface of the slide groove of the first telescopic cover 251, the second telescopic cover 252 and the first side shield 253 and the support plate 1121.

[0057] like Figure 6 to Figure 7 As shown, in one embodiment, the protection space includes a second protection space, the avoidance opening 21 also includes a second avoidance opening, and the telescopic protection assembly 2 also includes a second telescopic protection cover 26. The second telescopic protection cover 26 is installed in the first protection space and is surrounded with the base 11 to form a second protection space. The side of the drive component 12 and the workbench 13 close to the drive component 12 is located in the second protection space. The second avoidance opening is set on the side of the second telescopic protection cover 26 away from the base 11 and connects the second protection space and the first protection space. The side of the workbench 13 away from the drive component 12 extends out of the first protection space along the second avoidance opening and the first avoidance opening in sequence. The second telescopic protection cover 26 is located inside the first telescopic protection cover 25 (i.e., in the first protection space) and forms a double-layer protection with the first telescopic protection cover 25, which further improves the protection capability of the machine tool transmission device and can effectively prevent fine particles such as graphite dust from entering the second protection space through the matching gap 20.

[0058] Wherein, the second telescopic protective cover body 26 includes a third telescopic cover 261, a fourth telescopic cover 262 and a second side shield 263. The third telescopic cover 261 and the fourth telescopic cover 262 are respectively located on opposite sides of the workbench 13 along the first direction. Along the first direction, the end of the third telescopic cover 261 away from the workbench 13 is fixed to the base 11, and the end of the third telescopic cover 261 close to the workbench 13 is connected to the workbench 13. Along the first direction, the end of the fourth telescopic cover 262 away from the workbench 13 is fixed to the base 11, and the end of the fourth telescopic cover 262 close to the workbench 13 is connected to the workbench 13. The third telescopic cover 261 and the fourth telescopic cover 262 are slidably connected to the outer side wall of the slide rail away from the workbench 13 along the second direction, so that the third telescopic cover 261 and the fourth telescopic cover 262 can be telescoped along the first direction with the workbench 13. The second side shield 263 includes at least two, at least two second side shields 263 are respectively installed on the opposite sides of the workbench 13 along the second direction and are located between the third telescopic cover 261 and the fourth telescopic cover 262. Specifically, one end of the second side shield 263 away from the base 11 is fixedly connected to the workbench 13, and one end of the second side shield 263 close to the base 11 is slidably connected to the outer wall of the slide rail away from the slide rail along the second direction. Along the first direction, the opposite sides of the second side shield 263 are respectively connected to the first telescopic cover 251 and the second telescopic cover 252, so as to form a second protective space with the third telescopic cover 261 and the fourth telescopic cover 262 to prevent fine particles such as graphite dust from entering the second protective space to pollute or corrode the slider, the screw rod, etc., and ensure that the workbench 13 can smoothly reciprocate along the first direction.

[0059] The first telescopic cover 251, the second telescopic cover 252, the third telescopic cover 261 and the fourth telescopic cover 262 can be one of a steel plate protective cover, an accordion protective cover and a screw protective cover, etc., and this embodiment does not make the sole limitation.

[0060] On the other hand, the second embodiment of the present invention further provides a machine tool, which includes the machine tool transmission device provided by the first embodiment of the present invention. Therefore, the machine tool includes all the technical effects of the above-mentioned machine tool transmission device. Since the first embodiment has already described the technical effects of the machine tool transmission device in detail, this embodiment will not repeat them.

[0061] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0062] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0063] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A machine tool transmission device, characterized in that: include: A transmission assembly, the transmission assembly comprising a base (11), a driving component (12) and a workbench (13), the driving component (12) being mounted on the base (11), the workbench (13) being connected to the driving component (12) and being capable of reciprocating along a first direction under the drive of the driving component (12); A telescopic protection component (2), wherein the telescopic protection component (2) is mounted on the base (11) and has a matching gap (20) with the base (11); the telescopic protection component (2) is provided with a protection space and an escape opening (21) connected to the protection space; the driving component (12) and the side of the workbench (13) close to the driving component (12) are located in the protection space; the side of the workbench (13) away from the driving component (12) extends out of the protection space along the escape opening (21); the telescopic protection component (2) can be extended and retracted along a first direction under the drive of the workbench (13); and the matching gap (20) connects the outside of the protection space and the protection space; An air blowing component (3), wherein the air blowing component (3) is mounted on the base (11), and the air blowing component (3) is located outside the protective space and is arranged adjacent to the fitting gap (20).

2. The machine tool transmission device according to claim 1, characterized in that: At least two chip removal grooves (111) are provided on the base (11), and at least two of the chip removal grooves (111) are respectively located on opposite sides of the telescopic protective component (2) along the second direction. A support portion (112) is provided on the side wall of at least two of the chip removal grooves (111) close to the telescopic protective component (2) along the second direction, and the support portion (112) at least partially covers the notch of the chip removal groove (111). Along the second direction, the opposite sides of the telescopic protective component (2) are respectively connected to the support portion (112) and can move relative to the support portion (112) during the process of telescoping along the first direction. The matching gap (20) is located between the telescopic protective component (2) and the support portion (112) and is connected to the chip removal groove (111). The air blowing component (3) is installed on the support portion (112) and is offset to one side of the telescopic protective component (2) and is located in the chip removal groove (111).

3. The machine tool transmission device according to claim 2, characterized in that: The length of the fitting gap (20) extends along a first direction, and the blowing assembly (3) comprises: An air supply pipe (31), along a first direction, the air supply pipe (31) is installed on the support portion (112) and close to the connection between the fitting gap (20) and the chip removal groove (111), the length of the air supply pipe (31) extends along the first direction, and an air supply channel is provided in the air supply pipe (31); An air blowing component (32), wherein the air blowing component (32) is arranged on the air supply pipe (31), and the air blowing component (32) comprises an air blowing port (321) connected to the air supply channel, and the air blowing port (321) is located on a side of the air blowing component (32) away from the fitting gap (20) and connected to the chip removal groove (111).

4. The machine tool transmission device according to claim 3, characterized in that: A plurality of air outlets (311) in communication with the air supply channel are arranged on a tube wall of the air supply tube (31) away from the fitting gap (20), and the plurality of air outlets (311) are arranged at intervals along a first direction. The air blowing component (32) comprises: A one-way valve (322), wherein the one-way valve (322) comprises a plurality of one-way valves (322), the plurality of one-way valves (322) are arranged at the plurality of air outlets (311) in a one-to-one correspondence, and the air outlet (321) is located at a side of the one-way valve (322) away from the air outlet (311).

5. The machine tool transmission device according to any one of claims 2 to 4, characterized in that: The telescopic protection component (2) is fixedly connected to the base (11) at two opposite sides along a first direction, the support portion (112) comprises a support plate (1121), and along the first direction, the length of the support plate (1121) extends to two opposite sides of the telescopic protection component (2), a slide groove (22) is provided on one side of the telescopic protection component (2) close to the support plate (1121), the support plate (1121) is located in the slide groove (22) and has the matching gap (20) with the inner wall surface of the slide groove (22), the outer wall surface of the slide groove (22), the support plate (1121) and the inner wall surface of the chip removal groove (111) are formed with a mounting groove (23) connected to the chip removal groove (111), and the air blowing component (3) is installed in the mounting groove (23).

6. The machine tool transmission device according to claim 5, characterized in that: The support portion (112) further includes: A flow guide member (1122), wherein the flow guide member (1122) is installed in the installation groove (23) and covers the fitting gap (20), and a flow guide groove (241) connected to the chip removal groove (111) is provided on the flow guide member (1122), and the length of the flow guide groove (241) extends along the first direction, and the blowing assembly (3) is installed in the flow guide groove (241).

7. The machine tool transmission device according to claim 6, characterized in that: The side of the drainage groove (241) away from the support plate (1121) extends out of the notch of the mounting groove (23), and the width of the portion of the drainage groove (241) extending out of the notch of the mounting groove (23) along the second direction gradually increases in a direction away from the support plate (1121).

8. The machine tool transmission device according to claim 5, characterized in that: The protection space comprises a first protection space, the avoidance opening (21) comprises a first avoidance opening, and the telescopic protection component (2) comprises: a first telescopic protective cover (25), wherein the first telescopic protective cover (25) is fixedly connected to the base (11) at two opposite sides along a first direction and is surrounded by the base (11) to form the first protective space, the first avoidance opening is arranged on a side of the first telescopic protective cover (25) away from the base (11) and is connected to the first protective space, the driving component (12) and the side of the workbench (13) close to the driving component (12) are located in the first protective space, and the side of the workbench (13) away from the driving component (12) extends out of the first protective space along the first avoidance opening; Wherein, the sliding groove (22) is arranged on two opposite sides of the first telescopic protective cover (25) along the second direction.

9. The machine tool transmission device according to claim 8, characterized in that: The protection space includes a second protection space, the avoidance opening (21) also includes a second avoidance opening, and the telescopic protection component (2) also includes: A second telescopic protective cover (26), the second telescopic protective cover (26) is installed in the first protective space and is surrounded by the base (11) to form the second protective space, the driving component (12) and the side of the workbench (13) close to the driving component (12) are located in the second protective space, the second avoidance opening is arranged on the side of the second telescopic protective cover (26) away from the base (11) and connects the second protective space and the first protective space, and the side of the workbench (13) away from the driving component (12) extends out of the first protective space in sequence along the second avoidance opening and the first avoidance opening.

10. A machine tool, comprising the machine tool transmission device according to any one of claims 1 to 9.

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