High-efficiency dust-removing inner-outer circle compound grinding machine

Abstract

This invention provides a high-efficiency dust-removing internal and external cylindrical composite grinding machine, belonging to the technical field of machining equipment. The high-efficiency dust-removing internal and external cylindrical composite grinding machine includes an external cabinet, an internal chuck, an internal spindle, a first telescopic sleeve, and a second telescopic sleeve. This invention, by setting the first telescopic sleeve and the second telescopic sleeve outside the internal chuck and the internal spindle respectively, and allowing the first and second telescopic sleeves to be selectively connected or disconnected, allows for loading / unloading and grinding head changing operations when disconnected. During machining, the connection between the two sleeves covers the space containing the workpiece and the grinding head, preventing dust generated during grinding from leaking out. This avoids dust accumulation interfering with other moving structures of the equipment, extends its service life, and reduces the impact on the health of operators. Furthermore, it meets the grinding needs of workpieces of different materials, with fewer usage restrictions, facilitating the widespread use of internal and external cylindrical composite grinding machines.

Description

Technical Field

[0001] This invention relates to the field of machining equipment technology, specifically to a high-efficiency dust-removing internal and external cylindrical composite grinding machine. Background Technology

[0002] The internal and external cylindrical compound grinding machine is a piece of equipment that integrates internal cylindrical, external cylindrical and end face grinding functions. It can complete multiple processes at one time, reduce repeated positioning errors, and improve processing efficiency and product quality.

[0003] Currently, commercially available compound grinding machines typically include an external cabinet, an internal spindle, and internal chucks. The internal spindle usually consists of an external grinding spindle and an internal grinding spindle arranged side by side. The internal chucks include external grinding chucks and internal grinding chucks corresponding to the external and internal grinding spindles, respectively. This allows for external grinding, internal grinding, and end-face grinding of workpieces. However, current commercially available compound grinding machines usually only have a bottom chip removal structure. The external cabinet has an openable door; during grinding, the door is closed, and the grinding chips fall into the bottom chip removal structure for collection. While this structure satisfies both internal and external grinding needs, the bottom chip removal structure is more effective at collecting chips containing grinding fluid or of a certain weight, and is typically used for grinding metal workpieces. However, for some workpieces such as wood, plastic, and ceramics, in addition to generating waste chips of a certain weight, a large amount of dust is also produced during the grinding process. Existing internal and external cylindrical compound grinders with only a chip removal structure at the bottom are unable to clean up the flying dust. After long-term use, the dust will not only accumulate in the gaps of moving parts such as the internal spindle and internal chuck, causing blockage or excessive wear and affecting the service life, but also, because it takes a long time for the dust to float to the bottom, a lot of dust will still overflow when the operator opens the external cabinet door, affecting the operator's health. Therefore, internal and external cylindrical compound grinders have significant limitations in use, which affects their promotion and use. Summary of the Invention

[0004] To address the aforementioned problems in existing technologies, this invention aims to provide a high-efficiency dust-removing internal and external cylindrical composite grinding machine. This machine features a first and a second telescopic sleeve located outside the outer cabinet and outside the internal spindle and chuck. The first or second telescopic sleeve is connected to a suction device, and can be connected relative to each other or separated in opposite directions. When connected, the first and second sleeves cover the internal spindle and chuck during operation and deform in accordance with the movement of the internal spindle and / or chuck. This satisfies grinding requirements while simultaneously removing dust, enabling rapid removal of floating dust. This not only reduces the impact on the machine's moving structure but also minimizes the impact on operator health. It can handle grinding of workpieces made of a wider variety of materials, has fewer usage limitations, and facilitates the widespread use of internal and external cylindrical composite grinding machines.

[0005] The specific technical solution is as follows:

[0006] A high-efficiency dust-removing internal and external cylindrical composite grinding machine includes an outer cabinet, an inner spindle, and an inner chuck. The outer cabinet is equipped with a door. The inner spindle and the inner chuck are both housed within the outer cabinet. The inner spindle includes an outer cylindrical grinding spindle and an inner cylindrical grinding spindle. The inner chuck includes an outer cylindrical grinding chuck and an inner cylindrical grinding chuck, corresponding to the outer cylindrical grinding spindle and the inner cylindrical grinding spindle respectively. The machine also includes:

[0007] The first telescopic sleeve includes a first frame and a first telescopic deformation outer sleeve. One end of the first frame is fixedly installed on the housing of the outer cylindrical grinding chuck and the inner cylindrical grinding chuck. The first telescopic deformation outer sleeve is fitted over the first frame, and the two ends of the first telescopic deformation outer sleeve are respectively connected to the two ends of the first frame.

[0008] The second telescopic sleeve includes a second frame and a second telescopic deformation sleeve. One end of the second frame is fixedly installed on the housing of the outer and inner cylindrical grinding spindles. The second telescopic deformation sleeve is fitted over the second frame, and both ends of the second telescopic deformation sleeve are connected to both ends of the second frame. At the same time, the end of the second frame away from the housing of the outer and inner cylindrical grinding spindles is selectively connected to or disconnected from the end of the first frame away from the housing of the outer and inner cylindrical grinding chucks.

[0009] The aforementioned high-efficiency dust removal internal and external cylindrical composite grinding machine includes a first frame comprising a first telescopic part and a first deflection part, and a second frame comprising a second telescopic part and a second deflection part. One end of the first telescopic part is connected to the first deflection part, and one end of the second telescopic part is connected to the second deflection part. Furthermore, the first deflection part is connected to or disconnected from the corresponding second deflection part.

[0010] The aforementioned high-efficiency dust removal internal and external cylindrical composite grinding machine includes a first deflection part and a connecting rod, each of which includes a universal joint and a connecting rod. One end of the universal joint is connected to the corresponding first telescopic part and the corresponding second telescopic part, and the other end of the universal joint is connected to one end of the connecting rod. The other end of the connecting rod is connected to or disconnected from the other end of the corresponding connecting rod.

[0011] The aforementioned high-efficiency dust removal internal and external cylindrical composite grinding machine includes a first telescopic part and a second telescopic part, each comprising an outer sleeve and an inner rod. One end of the outer sleeve is fixed to the housing of the external cylindrical grinding chuck, the internal cylindrical grinding chuck, the external cylindrical grinding spindle, or the internal cylindrical grinding spindle. The other end of the outer sleeve is slidably provided with a coaxially arranged inner rod, and the other end of the inner rod is connected to the corresponding first deflection part or second deflection part.

[0012] In the aforementioned high-efficiency dust removal internal and external cylindrical composite grinding machine, the connecting rod length of the first deflection part is greater than the connecting rod length of the second deflection part, and a retraction structure is provided between the first telescopic part and the first deflection part.

[0013] The aforementioned high-efficiency dust removal internal and external cylindrical composite grinding machine includes a retraction structure comprising a slider, wherein the inner rod of the first telescopic part is a hollow rod, the slider is slidably disposed within the hollow of the inner rod, one end of the slider selectively extends out of the inner rod, and the first deflection part is connected to the slider.

[0014] In the aforementioned high-efficiency dust removal internal and external cylindrical composite grinding machine, a quick-release structure is provided between the connecting rod of the first deflection part and the corresponding connecting rod of the second deflection part. The quick-release structure includes a first connecting ring and a second connecting ring. The first connecting ring is fixedly connected to the connecting rod of the first deflection part, and the second connecting ring is fixedly connected to the connecting rod of the second deflection part. Furthermore, a first magnetic element is provided on the first connecting ring, and a second magnetic element corresponding to the first magnetic element is provided on the second connecting ring.

[0015] In the aforementioned high-efficiency dust removal internal and external cylindrical composite grinding machine, a protrusion is provided on the first connecting ring, and an insertion hole corresponding to the protrusion is provided on the second connecting ring. An inclined guide surface is provided on the edge of the protrusion near the insertion hole, and the opening of the insertion hole is arranged in an flared manner.

[0016] The aforementioned high-efficiency dust removal composite grinding machine for internal and external cylindrical grinding is characterized by both the external cylindrical grinding chuck and the internal cylindrical grinding chuck being electric or pneumatic chucks.

[0017] The positive effects of the above technical solution are:

[0018] The aforementioned high-efficiency dust-removing internal and external cylindrical composite grinding machine, by setting a first telescopic sleeve outside the internal chuck and a second telescopic sleeve outside the internal spindle, and selectively connecting or disconnecting the first frame of the first telescopic sleeve and the second frame of the second telescopic sleeve, allows the first and second telescopic sleeves to be connected when processing is required. This encloses the space between the internal chuck and the internal spindle, preventing dust generated by the grinding head from leaking out. The dust is then removed by a suction device, achieving dust removal. This not only maintains normal processing but also avoids dust accumulation interfering with the moving structures of the overall equipment and reduces the impact on the health of operators. It can meet the grinding needs of workpieces of more different materials, has fewer usage restrictions, and allows the first and second telescopic sleeves to be separated when loading and unloading are required, facilitating loading and unloading operations and promoting the widespread use of internal and external cylindrical composite grinding machines. Attached Figure Description

[0019] Figure 1 This is a structural diagram of an embodiment of a high-efficiency dust removal internal and external cylindrical composite grinding machine according to the present invention;

[0020] Figure 2 This is a schematic diagram of the installation of the first and second telescopic sleeves according to a preferred embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the first and second telescopic sleeves when they are deflected according to a preferred embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the first and second telescopic sleeves after separation and retraction according to a preferred embodiment of the present invention.

[0023] Figure 5 for Figure 2 Enlarged view of section A.

[0024] In the attached diagram: 1. External cabinet; 2. Internal spindle; 3. Internal clamp; 4. First telescopic sleeve; 41. First frame; 42. First telescopic deformation outer sleeve; 411. First telescopic part; 412. First deflection part; 4111. Outer sleeve; 4112. Inner rod; 4121. Universal joint; 4122. Connecting rod; 5. Second telescopic sleeve; 51. Second frame; 52. Second telescopic deformation outer sleeve; 511. Second telescopic part; 512. Second deflection part; 6. Retraction structure; 7. Quick-release structure; 71. First connecting ring; 72. Second connecting ring; 73. First magnetic component; 74. Second magnetic component; 711. Protrusion; 721. Insertion hole. Detailed Implementation

[0025] To make the technical means, creative features, objectives, and effects of this invention easier to understand, the following embodiments are provided in conjunction with the appendix. Figure 1 To be continued Figure 5 The technical solutions provided by this invention are described in detail, but the following content is not intended to limit this invention.

[0026] Figure 1 This is a structural diagram of an embodiment of a high-efficiency dust-removing internal and external cylindrical composite grinding machine according to the present invention. Figure 1 As shown, the high-efficiency dust-removing internal and external cylindrical composite grinding machine provided in this embodiment includes: an external cabinet 1, an internal spindle 2, an internal chuck 3, and a first telescopic sleeve 4 and a second telescopic sleeve 5. Similar to conventional internal and external cylindrical composite grinding machines on the market, the internal spindle 2 and the internal chuck 3 are mounted on the machine base, and a sliding drive structure is provided between the internal spindle 2 and / or the internal chuck 3 and the machine base. Preferably, the sliding drive structure can be a commonly used lead screw and bolt structure on commercial machine tools, which can realize the relative movement of the internal spindle 2 and the internal chuck 3, thereby meeting the grinding requirements of the grinding head on the workpiece. In addition, the external cabinet 1 is provided with a hatch, which facilitates the loading and unloading operations for the operator, making it more convenient to use. Furthermore, by placing both the internal spindle 2 and the internal chuck 3 inside the external cabinet 1, the internal spindle 2 and the internal chuck 3 are within the protection range of the external cabinet 1 during operation, improving the safety protection effect. Furthermore, the internal spindle 2 includes an external grinding spindle and an internal grinding spindle, while the internal chuck 3 includes an external grinding chuck and an internal grinding chuck, corresponding to the external and internal grinding spindles respectively. That is, when the workpiece is clamped by the external grinding chuck, it can be machined by the external grinding head on the external grinding spindle; when the workpiece is clamped by the internal grinding chuck, it can be machined by the internal grinding head on the internal grinding spindle, thus satisfying the requirements for combined internal and external grinding. Moreover, the first telescopic sleeve 4 is positioned outside the internal chuck 3, and the second telescopic sleeve 5 is positioned outside the internal spindle 2, providing conditions for subsequent coverage of the workpiece and grinding head through the connection of the first telescopic sleeve 4 and the second telescopic sleeve 5.

[0027] Figure 2 This is a schematic diagram of the installation of the first and second telescopic sleeves according to a preferred embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the first and second telescopic sleeves when they are deflected according to a preferred embodiment of the present invention; Figure 4 This is a schematic diagram of the structure after the first and second telescopic sleeves have separated and retracted according to a preferred embodiment of the present invention. Figures 1 to 4As shown, the first telescopic sleeve 4 includes a first frame 41 and a first telescopic deformation outer sleeve 42. One end of the first frame 41 is fixedly installed on the housing of the outer and inner cylindrical grinding chucks, achieving stable installation of the first frame 41 at the outer and inner cylindrical grinding chucks. This allows the movement of the housings of the outer and inner cylindrical grinding chucks to drive the movement of the first frame 41. It is worth noting that the housings of both the outer and inner cylindrical grinding chucks are respectively provided with the first frame 41, ensuring that each chuck has an independent corresponding first telescopic sleeve 4 to wrap around it, thus ensuring smooth dust removal during subsequent external and internal cylindrical grinding processes. Meanwhile, the first telescopic deformation jacket 42 is fitted over the first frame 41, and both ends of the first telescopic deformation jacket 42 are connected to both ends of the first frame 41, so that the first frame 41 can serve as the internal support structure of the first telescopic deformation jacket 42. This ensures that the first telescopic deformation jacket 42 can be fitted at intervals on the outside of the outer cylindrical grinding chuck and the inner cylindrical grinding chuck, achieving external coverage without affecting processing, thus providing conditions for dust removal. In addition, it also allows the first telescopic deformation jacket 42 to adapt to the state changes of the first frame 41 through its telescopic deformation, thus adapting to different processing requirements.

[0028] Specifically, the second telescopic sleeve 5 includes a second skeleton 51 and a second telescopic deformation sleeve 52. One end of the second skeleton 51 is fixedly installed on the housing of the outer and inner cylindrical grinding spindles, allowing the second skeleton 51 to move with the housing of the outer and inner cylindrical grinding spindles, thus achieving stable installation of the second skeleton 51 on the housing. Furthermore, the second telescopic deformation sleeve 52 is fitted over the second skeleton 51, allowing the second skeleton 51 to space the second telescopic deformation sleeve 52 on the outer side of the outer and inner cylindrical grinding spindles, providing external coverage without affecting processing and ensuring dust removal during subsequent processing. Moreover, both ends of the second telescopic deformation sleeve 52 are connected to both ends of the second skeleton 51, allowing the telescopic deformation of the second telescopic deformation sleeve 52 to adapt to changes in the state of the second skeleton 51, thus adapting to different processing requirements. Similarly, both the outer and inner cylindrical grinding spindles are independently equipped with a second telescopic sleeve 5, ensuring that both outer and inner cylindrical grinding processes can be covered by an independent second telescopic sleeve 5 to ensure dust removal. Meanwhile, the end of the second frame 51 facing away from the outer and inner grinding spindles of the machine housing is selectively connected or disconnected from the end of the first frame 41 facing away from the outer and inner grinding chucks of the machine housing. That is, during the processing, the first frame 41 of the first telescopic sleeve 4 outside the outer grinding chuck can be connected to the second frame 51 of the second telescopic sleeve 5 outside the outer grinding spindle, thereby ensuring that the first telescopic deformation sleeve 42 and the second telescopic deformation sleeve 52 can be connected to each other, realizing the isolation of the outer side of the space between the outer grinding chuck and the outer grinding spindle, so that the dust generated during processing can be within the range of the first telescopic deformation sleeve 42 and the second telescopic deformation sleeve 52, providing conditions for dust removal. Similarly, the first frame 41 of the first telescopic sleeve 4 outside the inner grinding chuck can be connected to the second frame 51 of the second telescopic sleeve 5 outside the inner grinding spindle, so that the outer side of the space between the inner grinding chuck and the inner grinding spindle can be covered by the first telescopic deformation sleeve 42 and the second telescopic deformation sleeve 52, reducing the escape of dust generated during processing, and also realizing dust removal. When loading and unloading are required after processing, this can be achieved by disconnecting the first skeleton 41 in the first telescopic sleeve 4 and the second skeleton 51 in the second telescopic sleeve 5. This facilitates loading and unloading operations on the outer and inner grinding chucks, and also makes it easier for operators to change the grinding head on the outer and inner grinding spindles. The structural design is more rational. It is worth noting that the first telescopic sleeve 4 or the second telescopic sleeve 5 is also connected to a suction device, which suctions the processing space to clean up dust. Furthermore, the second telescopic sleeve 5 or the first telescopic sleeve 4 is equipped with an air inlet to ensure timely air supply during suction and prevent deformation of the first and second telescopic sleeves 4 and 5. This further enhances the structural design.In addition, suction equipment includes, but is not limited to, industrial vacuum cleaners on the market, which only need to be able to suck up dust. Therefore, their specific structure will not be described in detail here.

[0029] More specifically, the first frame 41 includes a first telescopic part 411 and a first deflection part 412, and the second frame 51 includes a second telescopic part 511 and a second deflection part 512. During installation, one end of the first telescopic part 411 is connected to the first deflection part 412, and the other end is fixed to the housing of the outer and inner grinding chucks. One end of the second telescopic part 511 is connected to the second deflection part 512, and the other end is fixed to the housing of the outer and inner grinding spindles. This achieves a stable connection between the first telescopic part 411 and the second telescopic part 511. Furthermore, the first deflection part 412 can be connected or disconnected from the corresponding second deflection part 512. That is, when the first frame 41 and the corresponding second frame 51 are connected, the deflection of the first deflection part 412 and the second deflection part 512 can adapt to the processing requirements when the axes of the outer grinding chuck and the outer grinding spindle are misaligned. This ensures that the first telescopic sleeve 4 and the second telescopic sleeve 5 can still adapt to changes in the processing state after being connected, ensuring normal processing operations. Similarly, after the first deflection part 412 and the second deflection part are connected, they can also adapt to the misalignment machining requirements between the axes of the internal grinding chuck and the internal grinding spindle through deflection, and maintain normal machining operation.

[0030] More specifically, both the first deflection part 412 and the second deflection part 512 include a universal joint 4121 and a connecting rod 4122. One end of the universal joint 4121 is connected to the corresponding first telescopic part 411 and the corresponding second telescopic part 511, achieving stable installation of the universal joint 4121. Simultaneously, the other end of the universal joint 4121 is connected to one end of the connecting rod 4122, and the other end of the connecting rod 4122 is connected to or disconnected from the other end of the corresponding connecting rod 4122. Through the universal joint 4121, multi-directional deflection of the connecting rod 4122 relative to the first telescopic part 411 is achieved, ensuring that it can adapt to the relative movement of the chuck and the spindle, meeting different processing requirements and improving structural adaptability. Furthermore, the connecting rod 4122 extends the distance between the two corresponding universal joints 4121, providing sufficient space for the installation and movement of the workpiece and the grinding head, resulting in a more rational structural design.

[0031] More specifically, both the first telescopic part 411 and the second telescopic part 511 include an outer sleeve 4111 and an inner rod 4112. One end of the outer sleeve 4111 is fixed to the housing of the outer cylindrical grinding chuck, inner cylindrical grinding chuck, outer cylindrical grinding spindle, or inner cylindrical grinding spindle, achieving stable installation of the outer sleeve 4111. Furthermore, the arrangement direction of the outer sleeve 4111 is consistent with the axial direction of the outer cylindrical grinding chuck, inner cylindrical grinding chuck, outer cylindrical grinding spindle, or inner cylindrical grinding spindle. Additionally, the inner rod 4112 is slidably arranged coaxially at the other end of the outer sleeve 4111, and the other end of the inner rod 4112 is connected to the corresponding first deflection part 412 or second deflection part 512. Through the sliding arrangement of the inner rod 4112 within the outer sleeve 4111, the length of the other end of the inner rod 4112 can be adjusted, thereby adapting to the axial displacement requirements between the outer cylindrical grinding chuck and the outer cylindrical grinding spindle, and between the inner cylindrical grinding chuck and the inner cylindrical grinding spindle during processing. This results in a more flexible structure and better adaptability. It is worth noting that the extension and retraction process of the first telescopic part 411 and the second telescopic part 511 includes, but is not limited to, manual pushing and pulling; any extension and retraction that can be achieved is acceptable.

[0032] More specifically, the length of the connecting rod 4122 of the first deflection part 412 is greater than the length of the connecting rod 4122 of the second deflection part 512. In the actual structure, the length of the connecting rod 4122 of the first deflection part 412 is much greater than the length of the connecting rod 4122 of the second deflection part 512, while the length of the connecting rod 4122 of the second deflection part 512 is only a small segment. This allows the main part of the connecting rod 4122 used for deflection to be located on the first deflection part 412, which provides the conditions for hiding the deflecting connecting rod 4122 when the first telescopic sleeve 4 and the second telescopic sleeve 5 are disconnected, so as to facilitate loading and unloading operations. At this time, a retraction structure 6 is provided between the first telescopic part 411 and the first deflection part 412. Through the retraction structure 6, after the first deflection part 412 and the second deflection part 512 are disconnected, the first deflection part 412 can be mostly retracted into the first telescopic part 411, reducing the total length of the first telescopic sleeve 4, thereby avoiding the covering of the clamping mouth of the outer cylindrical grinding chuck and the inner cylindrical grinding chuck, making the loading and unloading operation of the workpiece more convenient.

[0033] More specifically, the retraction structure 6 includes a slider. In this case, the inner rod 4112 of the first telescopic part 411 is a hollow rod, creating a sliding hollow within the inner rod 4112. The slider is slidably positioned within the hollow of the inner rod 4112, allowing the position of the slider relative to the inner rod 4112 to be adjustable. One end of the slider selectively extends out of the inner rod 4112. Furthermore, the first deflection part 412 is connected to the end of the slider selectively extending out of the inner rod 4112. This facilitates the deflection of the first deflection part 412 after the slider extends out of the inner rod 4112. When the slider slides towards the inside of the inner rod 4112, the first deflection part 412 can be retracted towards the inner rod 4112, thereby reducing the obstruction of the first deflection part 412 to the workpiece loading and unloading operations and making operation more convenient. Preferably, the end of the slider selectively extending out of the inner rod 4112 is the ball joint 4121, meaning the slider is directly used as part of the first deflection part 412, resulting in a more compact structure. It is worth noting that the sliding process of the slider in the inner rod 4112 includes, but is not limited to, manual pushing and pulling; as long as the slider can slide smoothly, that is sufficient.

[0034] Figure 5 for Figure 2 An enlarged view of section A. (See image below.) Figures 2 to 5 As shown, a quick-release structure 7 is provided between the connecting rod 4122 of the first deflecting part 412 and the corresponding connecting rod 4122 of the second deflecting part 512, enabling selective connection or disconnection of the first deflecting part 412 and the corresponding second deflecting part 512. The quick-release structure 7 includes a first connecting ring 71 and a second connecting ring 72. The first connecting ring 71 is fixedly connected to the connecting rod 4122 of the first deflecting part 412, and the second connecting ring 72 is fixedly connected to the connecting rod 4122 of the second deflecting part 512. Furthermore, the first connecting ring 71 is provided with a first magnetic element 73, and the second connecting ring 72 is provided with a second magnetic element 74 corresponding to the first magnetic element 73. This achieves a magnetic connection between the first connecting ring 71 and the corresponding second connecting ring 72, facilitating the connection or disconnection of the first deflecting part 412 and the corresponding second deflecting part 512, making it more convenient to use. Preferably, the second magnetic component 74 is an electromagnet. The presence or absence of magnetism and the magnitude of magnetism of the second magnetic component 74 can be selectively set. When it is necessary to open the first telescopic sleeve 4 and the second telescopic sleeve 5, the second magnetic component 74 can be set to be non-magnetic, which facilitates the separation of the first telescopic sleeve 4 and the second telescopic sleeve 5. During the processing, the magnetism of the second magnetic component 74 can be increased to ensure that the first telescopic sleeve 4 and the second telescopic sleeve 5 can be firmly connected and will not break during the processing, thus providing higher safety assurance.

[0035] More specifically, the first connecting ring 71 has a protruding bump 711, and the second connecting ring 72 has a corresponding insertion hole 721. This allows the protruding bump 711 to be inserted into the insertion hole 721 when the first connecting ring 71 is in contact with the second connecting ring 721, thus limiting the connection and preventing radial displacement, resulting in higher connection stability. Preferably, the edge of the protruding bump 711 near the insertion hole 721 has an inclined guide surface, and the opening of the insertion hole 721 is flared, allowing the protruding bump 711 to automatically align when inserted into the insertion hole 721. Even with slight misalignment, it can still be inserted smoothly, resulting in a more rational structural design.

[0036] More specifically, both the outer and inner cylindrical grinding chucks are electric or pneumatic chucks, which can realize automatic clamping of workpieces without the need for operators to manually operate the outer and inner cylindrical grinding chucks, making loading and unloading more convenient.

[0037] The high-efficiency dust-removing internal and external cylindrical composite grinding machine provided in this embodiment includes an external cabinet 1, an internal chuck 3, an internal spindle 2, a first telescopic sleeve 4, and a second telescopic sleeve 5. By setting the first telescopic sleeve 4 and the second telescopic sleeve 5 on the outside of the internal chuck 3 and the internal spindle 2 respectively, and the first telescopic sleeve 4 and the second telescopic sleeve 5 can be selectively connected or disconnected, loading and unloading and grinding head replacement operations can be realized when they are disconnected. During processing, the connection between the two achieves coverage of the space where the workpiece and grinding head are located, preventing dust generated during grinding from leaking out, thereby avoiding dust accumulation and interference with other moving structures of the equipment, extending service life, and reducing the impact on the health of operators. At the same time, it meets the grinding processing of workpieces of different materials, and its use is less restricted, which is conducive to the promotion and use of internal and external cylindrical composite grinding machines.

[0038] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should recognize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency dust-removing internal and external cylindrical composite grinding machine, comprising an outer cabinet, an internal spindle, and an internal chuck, wherein the outer cabinet is provided with a door, and the internal spindle and the internal chuck are both disposed within the outer cabinet; the internal spindle includes an external cylindrical grinding spindle and an internal cylindrical grinding spindle, and the internal chuck includes an external cylindrical grinding chuck and an internal cylindrical grinding chuck, corresponding respectively to the external cylindrical grinding spindle and the internal cylindrical grinding spindle, characterized in that, Also includes: The first telescopic sleeve includes a first skeleton and a first telescopic deformation outer sleeve. One end of the first skeleton is fixedly installed on the housing of the outer cylindrical grinding chuck and the inner cylindrical grinding chuck. The first telescopic deformation outer sleeve is sleeved on the outside of the first skeleton, and the two ends of the first telescopic deformation outer sleeve are respectively connected to the two ends of the first skeleton. The second telescopic sleeve includes a second skeleton and a second telescopic deformation sleeve. One end of the second skeleton is fixedly installed on the housing of the outer cylindrical grinding spindle and the inner cylindrical grinding spindle. The second telescopic deformation sleeve is sleeved on the outside of the second skeleton, and both ends of the second telescopic deformation sleeve are respectively connected to both ends of the second skeleton. At the same time, the end of the second skeleton away from the housing of the outer cylindrical grinding spindle and the inner cylindrical grinding spindle is selectively connected or disconnected from the end of the first skeleton away from the housing of the outer cylindrical grinding chuck and the inner cylindrical grinding chuck. The first frame includes a first telescopic part and a first deflection part, and the second frame includes a second telescopic part and a second deflection part. One end of the first telescopic part is connected to the first deflection part, and one end of the second telescopic part is connected to the second deflection part. Furthermore, the first deflection part is connected to or disconnected from the corresponding second deflection part. Both the first deflection part and the second deflection part include a universal joint and a connecting rod. One end of the universal joint is connected to the corresponding first telescopic part and the corresponding second telescopic part, and the other end of the universal joint is connected to one end of the connecting rod. The other end of the connecting rod is connected to or disconnected from the other end of the corresponding other connecting rod. Both the first telescopic part and the second telescopic part include an outer sleeve and an inner rod. One end of the outer sleeve is fixed to the housing of the outer cylindrical grinding chuck, the inner cylindrical grinding chuck, the outer cylindrical grinding spindle, or the inner cylindrical grinding spindle. The other end of the outer sleeve is slidably provided with a coaxially arranged inner rod, and the other end of the inner rod is connected to the corresponding first deflection part or second deflection part.

2. The high-efficiency dust removal internal and external cylindrical composite grinding machine according to claim 1, characterized in that, The length of the connecting rod of the first deflection part is greater than the length of the connecting rod of the second deflection part, and a retraction structure is provided between the first telescopic part and the first deflection part.

3. The high-efficiency dust removal internal and external cylindrical composite grinding machine according to claim 2, characterized in that, The retraction structure includes a slider, and the inner rod of the first telescopic part is a hollow rod. The slider is slidably disposed in the hollow of the inner rod, and one end of the slider selectively extends out of the inner rod. The first deflection part is connected to the slider.

4. The high-efficiency dust removal internal and external cylindrical composite grinding machine according to claim 3, characterized in that, A quick-release structure is provided between the connecting rod of the first deflection part and the connecting rod of the corresponding second deflection part. The quick-release structure includes a first connecting ring and a second connecting ring. The first connecting ring is fixedly connected to the connecting rod of the first deflection part, and the second connecting ring is fixedly connected to the connecting rod of the second deflection part. Furthermore, a first magnetic element is provided on the first connecting ring, and a second magnetic element corresponding to the first magnetic element is provided on the second connecting ring.

5. The high-efficiency dust removal internal and external cylindrical composite grinding machine according to claim 4, characterized in that, The first connecting ring has a protruding bump, and the second connecting ring has a corresponding insertion hole. The edge of the protrusion near the insertion hole has an inclined guide surface, and the opening of the insertion hole is flared.

6. The high-efficiency dust removal internal and external cylindrical composite grinding machine according to claim 1, characterized in that, Both the outer cylindrical grinding chuck and the inner cylindrical grinding chuck are electric chucks or pneumatic chucks.

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