Inner and outer circle composite grinding machine capable of efficiently removing dust

Abstract

The invention provides an inner and outer circle composite grinding machine capable of efficiently removing dust, and belongs to the technical field of machining equipment. The efficient dust removal inner and outer circle composite grinding machine comprises an outer cabinet body, an inner chuck, an inner main shaft, a first telescopic sleeve and a second telescopic sleeve; the first telescopic sleeve and the second telescopic sleeve are arranged outside the inner chuck and the inner main shaft correspondingly and can be selectively connected or disconnected, and when the first telescopic sleeve and the second telescopic sleeve are disconnected, feeding and discharging and grinding head replacement operation can be achieved; during machining, the space where the workpiece and the grinding head are located is covered through connection of the workpiece and the grinding head, dust generated by grinding is prevented from leaking out, interference of dust accumulation on other movement structures of equipment is avoided, the service life is prolonged, the influence on the body health of operators can be reduced, and meanwhile the machining efficiency is improved. And grinding machining of workpieces made of different materials is met, the using limitation is smaller, and application and popularization of the inner and outer circle composite grinding machine are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of machining equipment, in particular to an internal and external cylindrical composite grinder with high-efficiency dust removal. Background Art

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

[0003] At present, the existing internal and external cylindrical compound grinding machines on the market usually include an external cabinet, an internal spindle and an internal chuck. The internal spindle usually includes an external cylindrical grinding spindle and an internal cylindrical grinding spindle arranged in parallel. The internal chuck includes an external cylindrical grinding chuck and an internal cylindrical grinding chuck corresponding to the external cylindrical grinding spindle and the internal cylindrical grinding spindle, respectively, which can realize external cylindrical grinding, internal cylindrical grinding and end face grinding of the workpiece. However, the existing internal and external cylindrical compound grinding machines on the market usually only have a bottom chip removal structure, and an openable hatch is provided on the external cabinet. That is, when the grinding process is carried out, the hatch is closed, and the waste chips generated by the grinding fall into the bottom chip removal structure to realize waste chip collection. Although the above structure meets the requirements of internal and external cylindrical grinding, its bottom chip removal structure has a better effect on collecting waste chips with grinding fluid or a certain weight, and is usually used for grinding metal workpieces. However, for some workpieces such as wood, plastic, ceramics, etc., during the grinding process, in addition to waste chips with a certain weight, a large amount of dust will also be generated. The existing internal and external cylindrical compound grinders that only have a chip removal structure at the bottom are difficult to clean the rising dust. After long-term use, it will not only accumulate in the gaps between the moving parts of the internal spindle and internal chuck structures, causing blockage or excessive wear problems, affecting the service life. In addition, since it takes a long time for the dust to float and sink, when the operator opens the hatch of the external cabinet, a lot of dust will still overflow, affecting the operator's health, thereby causing large usage restrictions on the internal and external cylindrical compound grinders and affecting the promotion and use of the internal and external cylindrical compound grinders. Summary of the Invention

[0004] In response to the above-mentioned problems existing in the prior art, the present invention aims to provide an internal and external cylindrical compound grinder with efficient dust removal, with a first telescopic sleeve and a second telescopic sleeve located on an external cabinet and outside the internal spindle and the internal chuck, the first telescopic sleeve or the second telescopic sleeve is connected to a suction device, and the first telescopic sleeve and the second telescopic sleeve can be relatively connected or separated in opposite directions, and when the two are relatively connected, they cover the internal spindle and the internal chuck during operation, and can deform with the movement of the internal spindle and / or the internal chuck, meeting the grinding processing needs while also achieving dust removal and rapid removal of floating dust, which can not only reduce the impact on the moving structure of the equipment itself, but also reduce the impact on the health of the operator, meet the grinding processing needs of more workpieces of different materials, have fewer usage restrictions, and are conducive to the promotion and use of internal and external cylindrical compound grinders.

[0005] The specific technical solutions are as follows: An internal and external cylindrical composite grinding machine with high efficiency dust removal comprises an external cabinet, an internal spindle and an internal chuck, the external cabinet being provided with a hatch, the internal spindle and the internal chuck being both provided within the external cabinet, the internal spindle comprising an external cylindrical grinding spindle and an internal cylindrical grinding spindle, the internal chuck comprising an external cylindrical grinding chuck and an internal cylindrical grinding chuck corresponding to the external cylindrical grinding spindle and the internal cylindrical grinding spindle respectively, and having the following features, further comprising: The first telescopic sleeve includes a first frame and a first telescopic deformable outer sleeve. One end of the first frame is fixedly mounted on the housing of the external grinding chuck and the internal grinding chuck. The first telescopic deformable outer sleeve is arranged outside the first frame, and the two ends of the first telescopic deformable outer sleeve are respectively connected to the two ends of the first frame. The second telescopic sleeve includes a second skeleton and a second telescopic deformable outer sleeve. One end of the second skeleton is fixedly mounted on the casing of the outer cylindrical grinding spindle and the inner cylindrical grinding spindle. The second telescopic deformable outer sleeve is arranged outside the second skeleton, and the two ends of the second telescopic deformable outer sleeve are respectively connected to the two ends of the second skeleton. At the same time, one end of the second skeleton away from the casing of the outer cylindrical grinding spindle and the inner cylindrical grinding spindle is selectively connected or disconnected with one end of the first skeleton away from the casing of the outer cylindrical grinding chuck and the inner cylindrical grinding chuck.

[0006] The above-mentioned internal and external cylindrical compound grinder with high-efficiency dust removal, wherein the first skeleton includes a first telescopic part and a first deflection part, the second skeleton includes a second telescopic part and a second deflection part, one end of the first telescopic part is connected to the first deflection part, one end of the second telescopic part is connected to the second deflection part, and the first deflection part is connected or disconnected with the corresponding second deflection part.

[0007] The above-mentioned high-efficiency dust removal internal and external cylindrical compound grinder, wherein the first deflection part and the second deflection part both 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, the other end of the universal joint is connected to one end of the connecting rod, and the other end of the connecting rod is connected or disconnected with the other end of the corresponding other connecting rod.

[0008] The above-mentioned internal and external cylindrical compound grinder with high-efficiency dust removal, wherein the first telescopic part and the second telescopic part both include an outer sleeve and an inner rod, one end of the outer sleeve is fixed to the outer cylindrical grinding chuck, the inner cylindrical grinding chuck, the outer cylindrical grinding spindle or the housing of the inner cylindrical grinding spindle, and 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 the second deflection part.

[0009] In the above-mentioned high-efficiency dust-removing internal and external cylindrical compound grinding machine, 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.

[0010] The above-mentioned high-efficiency dust-removing internal and external cylindrical compound grinder, wherein the retraction structure includes a slider, and the inner rod of the first telescopic part is a hollow rod, the slider is slidably arranged in the hollow of the inner rod, one end of the slider selectively extends outside the inner rod, and the first deflection part is connected to the slider.

[0011] The above-mentioned internal and external cylindrical compound grinder with high-efficiency dust removal, wherein 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, the second connecting ring is fixedly connected to the connecting rod of the second deflection part, and a first magnetic part is provided on the first connecting ring, and a second magnetic part corresponding to the first magnetic part is provided on the second connecting ring.

[0012] The above-mentioned high-efficiency dust removal internal and external cylindrical compound grinder, wherein a protruding block is provided on the first connecting ring, a socket corresponding to the protrusion is provided on the second connecting ring, an inclined guide surface is provided on the edge of one end of the protrusion close to the socket, and the hole of the socket is arranged in a flared manner.

[0013] In the above-mentioned high-efficiency dust-removing internal and external cylindrical compound grinding machine, the external cylindrical grinding chuck and the internal cylindrical grinding chuck are both electric chucks or pneumatic chucks.

[0014] The positive effects of the above technical solution are: The above-mentioned internal and external cylindrical compound grinder with high-efficiency dust removal is provided with a first telescopic sleeve outside the internal chuck and a second telescopic sleeve outside the internal spindle, and the first skeleton of the first telescopic sleeve is selectively connected or disconnected with the second skeleton of the second telescopic sleeve, so that when processing is required, the first telescopic sleeve and the second telescopic sleeve can be connected by connecting the first skeleton and the second skeleton, thereby wrapping the space between the internal chuck and the internal spindle, so that the dust generated by the grinding head grinding the workpiece will not leak out, and the dust is sucked away by the suction equipment to achieve dust removal, which can not only maintain the normal progress of processing, but also avoid the interference of dust accumulation on the overall moving structure of the equipment, and also reduce the impact on the health of the operator, meet the grinding processing of workpieces of more different materials, and have fewer usage restrictions. Moreover, the first telescopic sleeve and the second telescopic sleeve can be separated when loading and unloading are required, which facilitates the loading and unloading operations and is conducive to the promotion and use of internal and external cylindrical compound grinders. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A structural diagram of an embodiment of an internal and external cylindrical composite grinding machine with high efficiency dust removal according to the present invention; Figure 2 This is a schematic diagram of the installation of the first telescopic sleeve and the second telescopic sleeve in a preferred embodiment of the present invention; Figure 3 This is a schematic structural diagram of the first telescopic sleeve and the second telescopic sleeve when deflected according to a preferred embodiment of the present invention; Figure 4 This is a schematic structural diagram of a preferred embodiment of the present invention after the first telescopic sleeve and the second telescopic sleeve are separated and retracted; Figure 5 for Figure 2 Enlarged view of part A.

[0016] In the accompanying drawings: 1. External cabinet; 2. Internal main shaft; 3. Internal chuck; 4. First telescopic sleeve; 41. First skeleton; 42. First telescopic deformation jacket; 411. First telescopic part; 412. First deflection part; 4111. Jacket; 4112. Inner rod; 4121. Universal joint; 4122. Connecting rod; 5. Second telescopic sleeve; 51. Second skeleton; 52. Second telescopic deformation jacket; 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 part; 74. Second magnetic part; 711. Protrusion; 721. Socket. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the following embodiments are combined with the attached Figure 1 To the attached Figure 5The technical solution provided by the present invention is described in detail, but the following content is not intended to limit the present invention.

[0018] Figure 1 This is a structural diagram of an embodiment of an internal and external cylindrical composite grinding machine with high efficiency dust removal according to the present invention. Figure 1 As shown, the high-efficiency dust-removing internal and external cylindrical compound 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. At this time, like the traditional internal and external cylindrical compound grinding machines on the market, the internal spindle 2 and the internal chuck 3 are installed 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 screw block structure commonly used on machine tools on the market, which can realize the relative movement of the internal spindle 2 and the internal chuck 3, thereby meeting the grinding processing 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 of the operator and is more convenient to use. Moreover, the internal spindle 2 and the internal chuck 3 are both arranged in the external cabinet 1, so that the internal spindle 2 and the internal chuck 3 can be within the protection range of the external cabinet 1 during operation, thereby improving the safety protection effect. Furthermore, the internal spindle 2 comprises an external grinding spindle and an internal grinding spindle, while the internal chuck 3 comprises an external grinding chuck and an internal grinding chuck, corresponding to the external grinding spindle and the internal grinding spindle, respectively. This means that when a workpiece is clamped by the external grinding chuck, the external grinding head on the external grinding spindle can be used to machine the workpiece, while when the workpiece is clamped by the internal grinding chuck, the internal grinding head on the internal grinding spindle can be used to machine the workpiece, thereby meeting the requirements for composite internal and external machining. Furthermore, the first telescopic sleeve 4 is disposed outside the internal chuck 3, and the second telescopic sleeve 5 is disposed outside the internal spindle 2, providing conditions for subsequently connecting the first telescopic sleeve 4 and the second telescopic sleeve 5 to cover the workpiece and the grinding head.

[0019] Figure 2 This is a schematic diagram of the installation of the first telescopic sleeve and the second telescopic sleeve in a preferred embodiment of the present invention; Figure 3 This is a schematic structural diagram of the first telescopic sleeve and the second telescopic sleeve when deflected according to a preferred embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the first telescopic sleeve and the second telescopic sleeve after separation and retraction in a preferred embodiment of the present invention. Figures 1 to 4As shown, the first telescopic sleeve 4 includes a first skeleton 41 and a first telescopic deformation outer sleeve 42. One end of the first skeleton 41 is fixedly mounted on the housing of the outer cylindrical grinding chuck and the inner cylindrical grinding chuck, thereby achieving stable installation of the first skeleton 41 at the outer cylindrical grinding chuck and the inner cylindrical grinding chuck, so that the movement of the housing of the outer cylindrical grinding chuck and the inner cylindrical grinding chuck can drive the movement of the first skeleton 41. It is worth noting that the first skeleton 41 is respectively provided on the housing of the outer cylindrical grinding chuck and the housing of the inner cylindrical grinding chuck, ensuring that the outer cylindrical grinding chuck and the inner cylindrical grinding chuck are each wrapped by an independent corresponding first telescopic sleeve 4, so as to ensure smooth dust removal during the subsequent processing, whether it is external cylindrical grinding or internal cylindrical grinding. At the same time, the first telescopic deformable jacket 42 is mounted on the outside of the first skeleton 41, and the two ends of the first telescopic deformable jacket 42 are respectively connected to the two ends of the first skeleton 41, so that the first skeleton 41 can serve as the internal support structure of the first telescopic deformable jacket 42, ensuring that the first telescopic deformable jacket 42 can be arranged at intervals on the outside of the outer cylindrical grinding chuck and the inner cylindrical grinding chuck, and achieve outer covering without affecting the processing, providing conditions for dust removal. In addition, it also enables the subsequent adaptation to the state changes of the first skeleton 41 through the telescopic deformation of the first telescopic deformable jacket 42 to adapt to different processing requirements.

[0020] Specifically, the second telescopic sleeve 5 includes a second skeleton 51 and a second telescopic deformation outer sleeve 52, and one end of the second skeleton 51 is fixedly mounted on the housing of the outer cylindrical grinding spindle and the inner cylindrical grinding spindle, so that the second skeleton 51 can follow the movement of the housing of the outer cylindrical grinding spindle and the inner cylindrical grinding spindle, thereby achieving stable installation of the second skeleton 51 on the housing of the outer cylindrical grinding spindle and the inner cylindrical grinding spindle. In addition, the second telescopic deformation outer sleeve 52 is sleeved outside the second skeleton 51, and the second skeleton 51 is used to achieve the second telescopic deformation outer sleeve 52 being sleeved on the outside of the outer cylindrical grinding spindle and the inner cylindrical grinding spindle at intervals, thereby achieving outer covering without affecting processing, ensuring that dust removal can be achieved later during the processing. In addition, the two ends of the second telescopic deformation outer sleeve 52 are respectively connected to the two ends of the second skeleton 51, so that the telescopic deformation of the second telescopic deformation outer sleeve 52 can adapt to the state changes of the second skeleton 51, and can also adapt to different processing requirements. Similarly, the outer sides of the external cylindrical grinding spindle and the internal cylindrical grinding spindle are independently provided with a second telescopic sleeve 5 to ensure that both the external cylindrical grinding and the internal cylindrical grinding can be covered by an independent second telescopic sleeve 5 to ensure dust removal. At the same time, the second skeleton 51 is selectively connected or disconnected with one end of the casing of the first skeleton 41 away from the outer cylindrical grinding spindle and the inner cylindrical grinding spindle, that is, during the processing, the first skeleton 41 of the first telescopic sleeve 4 outside the outer cylindrical grinding chuck can be connected to the second skeleton 51 of the second telescopic sleeve 5 outside the outer cylindrical grinding spindle, thereby ensuring that the first telescopic deformation jacket 42 and the second telescopic deformation jacket 52 can be connected to each other, realizing the isolation of the outer side of the space between the outer cylindrical grinding chuck and the outer cylindrical grinding spindle, so that the dust generated by the processing can be within the range where the first telescopic deformation jacket 42 and the second telescopic deformation jacket 52 are located, providing conditions for dust removal; similarly, the first skeleton 41 of the first telescopic sleeve 4 outside the inner cylindrical grinding chuck can be connected to the second skeleton 51 of the second telescopic sleeve 5 outside the inner cylindrical grinding spindle, so that the outer side of the space between the inner cylindrical grinding chuck and the inner cylindrical grinding spindle can be covered by the first telescopic deformation jacket 42 and the second telescopic deformation jacket 52, reducing the escape of dust generated by the processing and also realizing dust removal. When the machining is completed and the material needs to be loaded and unloaded, 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, which facilitates the operator to perform loading and unloading operations on the external cylindrical grinding chuck and the internal cylindrical grinding chuck, and also facilitates the operator to replace the grinding head on the external cylindrical grinding spindle and the internal cylindrical grinding spindle, and the structural design is more reasonable. It is worth noting that the first telescopic sleeve 4 or the second telescopic sleeve 5 is also connected to a suction device through a pipe, that is, the processing space is sucked by the suction device to achieve dust cleaning. It is worth noting that the second telescopic sleeve 5 or the first telescopic sleeve 4 is also provided with an air inlet, which is convenient for timely replenishing air during suction and preventing the first telescopic sleeve 4 and the second telescopic sleeve 5 from being deformed by suction, and the structural design is more reasonable.In addition, the suction equipment includes but is not limited to industrial vacuum cleaners on the market, which can be used to suck dust. Therefore, its specific structure will not be described in detail here.

[0021] More specifically, the first skeleton 41 includes a first telescopic portion 411 and a first deflection portion 412, and the second skeleton 51 includes a second telescopic portion 511 and a second deflection portion 512. During installation, one end of the first telescopic portion 411 is connected to the first deflection portion 412, and the other end is fixed to the housing of the outer cylindrical grinding chuck and the inner cylindrical grinding chuck. One end of the second telescopic portion 511 is connected to the second deflection portion 512, and the other end is fixed to the housing of the outer cylindrical grinding spindle and the inner cylindrical grinding spindle, thereby achieving a stable connection between the first telescopic portion 411 and the second telescopic portion 511, and the first deflection portion 412 is connected or disconnected with the corresponding second deflection portion 512, that is, when the first skeleton 41 and the corresponding second skeleton 51 are connected, the deflection of the first deflection portion 412 and the second deflection portion 512 can adapt to the processing requirements of misalignment of the axes of the outer cylindrical grinding chuck and the outer cylindrical grinding spindle, thereby ensuring that the first telescopic sleeve 4 and the second telescopic sleeve 5 can still adapt to changes in the processing state after being connected, thereby ensuring normal processing operations. Similarly, after the first deflection portion 412 is connected to the second deflection portion, it can also adapt to the misalignment processing requirements between the axes of the internal grinding chuck and the internal grinding spindle through deflection to maintain normal processing operations.

[0022] More specifically, the first deflection portion 412 and the second deflection portion 512 each include a universal joint 4121 and a connecting rod 4122. One end of the universal joint 4121 is connected to the corresponding first telescopic portion 411 and the corresponding second telescopic portion 511, thereby ensuring 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 or disconnected to the other end of the corresponding other connecting rod 4122. The universal joint 4121 enables multi-directional deflection of the connecting rod 4122 relative to the first telescopic portion 411, ensuring that the connecting rod 4122 can subsequently adapt to the relative movement of the chuck and the spindle, meeting different processing requirements and providing better 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, and making the structural design more reasonable.

[0023] More specifically, the first telescopic portion 411 and the second telescopic portion 511 each include an outer sleeve 4111 and an inner rod 4112. One end of the outer sleeve 4111 is fixed to the housing of the external grinding chuck, the internal grinding chuck, the external grinding spindle, or the internal grinding spindle, ensuring stable installation of the outer sleeve 4111. The outer sleeve 4111 is arranged in a direction aligned with the axial direction of the external grinding chuck, the internal grinding chuck, the external grinding spindle, or the internal grinding spindle. Furthermore, a coaxially arranged inner rod 4112 is slidably mounted on the other end of the outer sleeve 4111. The other end of the inner rod 4112 is connected to the corresponding first deflection portion 412 or second deflection portion 512. The sliding arrangement of the inner rod 4112 within the outer sleeve 4111 allows the length of the other end of the inner rod 4112 to be adjusted, thereby adapting to the axial displacement requirements between the external grinding chuck and the external grinding spindle, and between the internal grinding chuck and the internal grinding spindle during machining, resulting in a more flexible and adaptable structure. It is worth noting that the expansion and contraction process of the first expansion part 411 and the second expansion part 511 includes but is not limited to manual pushing and pulling, and any expansion and contraction that satisfies the requirements will suffice.

[0024] 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, and the length of the connecting rod 4122 of the second deflection part 512 is only a small section, so that the main part of the connecting rod 4122 used for deflection is located on the first deflection part 412, which provides conditions for hiding the deflected connecting rod 4122 when the first telescopic sleeve 4 and the second telescopic sleeve 5 are disconnected 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 covering the clamping openings of the external cylindrical grinding chuck and the internal cylindrical grinding chuck, making the loading and unloading operations of the workpiece more convenient.

[0025] More specifically, the retraction structure 6 includes a slider. In this case, the inner rod 4112 of the first telescopic portion 411 is configured as a hollow rod, so that the inner rod 4112 has a sliding hollow core. The slider is slidably disposed within the hollow core of the inner rod 4112, allowing the slider to be adjusted relative to the inner rod 4112. One end of the slider selectively extends outside the inner rod 4112. Furthermore, the first deflecting portion 412 is connected to the end of the slider that selectively extends outside the inner rod 4112. This facilitates the deflection of the first deflecting portion 412 after the end of the slider subsequently extends outside the inner rod 4112. When the slider slides toward the inside of the inner rod 4112, the first deflecting portion 412 is retracted toward the inside of the inner rod 4112, thereby reducing the obstruction of the first deflecting portion 412 on workpiece loading and unloading operations and enhancing operation convenience. Preferably, the end of the slider that selectively extends outside the inner rod 4112 is the ball bowl of the universal joint 4121, meaning that the slider directly serves as part of the first deflecting portion 412, resulting in a more compact structure. It is worth noting that the process of the slider sliding in the inner rod 4112 includes but is not limited to manual pushing and pulling, and the slider can slide as required.

[0026] Figure 5 for Figure 2 An enlarged view of part A in the figure. Figures 2 to 5 As shown, a quick-release structure 7 is provided between the connecting rod 4122 of the first deflecting portion 412 and the corresponding connecting rod 4122 of the second deflecting portion 512, thereby realizing selective connection or disconnection between the first deflecting portion 412 and the corresponding second deflecting portion 512. Here, the quick-release structure 7 further 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 portion 412, while the second connecting ring 72 is fixedly connected to the connecting rod 4122 of the second deflecting portion 512. Furthermore, a first magnetic member 73 is provided on the first connecting ring 71, and a second magnetic member 74 corresponding to the first magnetic member 73 is provided on the second connecting ring 72. This achieves a magnetic connection between the first connecting ring 71 and the corresponding second connecting ring 72, thereby facilitating connection or disconnection between the first deflecting portion 412 and the corresponding second deflecting portion 512, and making it more convenient to use. Preferably, the second magnetic part 74 is an electromagnet, and the second magnetic part 74 can be selectively set to be magnetic or not and the magnetic size can be adjusted to ensure that when the first telescopic sleeve 4 and the second telescopic sleeve 5 need to be opened, the second magnetic part 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 part 74 can be increased to ensure that the first telescopic sleeve 4 and the second telescopic sleeve 5 can be firmly connected, and there will be no disconnection problem during the processing, which has higher safety protection.

[0027] More specifically, a protruding block 711 is provided on the first connecting ring 71, and a socket 721 corresponding to the protrusion 711 is provided on the second connecting ring 72. This allows the protrusion 711 to be inserted into the socket 721 when the first connecting ring 71 is brought into contact with the second connecting ring 71, thereby limiting the position of the two after connection. This ensures that the two will not deviate radially after connection, resulting in a more stable connection. Preferably, an inclined guide surface is provided on the edge of the end of the protrusion 711 near the socket 721, and the opening of the socket 721 is flared. This allows the protrusion 711 to automatically align with the socket 721 when inserted, and even if the two are slightly misaligned, they can still be smoothly inserted, resulting in a more reasonable structural design.

[0028] More specifically, both the external cylindrical grinding chuck and the internal cylindrical grinding chuck are electric chucks or pneumatic chucks, which can realize automatic clamping of the workpiece, eliminating the need for operators to manually operate the external cylindrical grinding chuck and the internal cylindrical grinding chuck, making loading and unloading more convenient.

[0029] The internal and external cylindrical compound grinder with high-efficiency dust removal 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 arranging the first telescopic sleeve 4 and the second telescopic sleeve 5 outside 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, the loading and unloading and grinding head replacement operations can be realized when the two are disconnected, and during processing, the connection between the two is used to cover the space where the workpiece and the grinding head are located, avoiding the dust generated by grinding from leaking out, thereby avoiding the interference of dust accumulation on other moving structures of the equipment, extending the service life, and reducing the impact on the health of the operator. At the same time, it meets the grinding processing of workpieces of different materials, and has fewer usage restrictions, which is conducive to the promotion and use of internal and external cylindrical compound grinders.

[0030] The above are only preferred embodiments of the present invention and do not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. An internal and external cylindrical compound grinding machine with high efficiency dust removal, comprising an external cabinet, an internal spindle and an internal chuck, wherein the external cabinet is provided with a hatch, the internal spindle and the internal chuck are both arranged in the external cabinet, the internal spindle comprises an external cylindrical grinding spindle and an internal cylindrical grinding spindle, the internal chuck comprises an external cylindrical grinding chuck and an internal cylindrical grinding chuck and corresponds to the external cylindrical grinding spindle and the internal cylindrical grinding spindle respectively, characterized in that: Also includes: A first telescopic sleeve, comprising a first frame and a first telescopic deformable outer sleeve, one end of the first frame being fixedly mounted on the housings of the outer cylindrical grinding chuck and the inner cylindrical grinding chuck, the first telescopic deformable outer sleeve being disposed outside the first frame, and two ends of the first telescopic deformable outer sleeve being respectively connected to two ends of the first frame; The second telescopic sleeve includes a second skeleton and a second telescopic deformation sleeve, one end of the second skeleton is fixedly mounted on the housing of the outer cylindrical grinding spindle and the inner cylindrical grinding spindle, the second telescopic deformation sleeve is arranged outside the second skeleton, and the two ends of the second telescopic deformation sleeve are respectively connected to the two ends of the second skeleton. At the same time, one 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 with one end of the first skeleton away from the housing of the outer cylindrical grinding chuck and the inner cylindrical grinding chuck.

2. The high-efficiency dust removal internal and external cylindrical compound grinding machine according to claim 1, characterized in that: The first skeleton includes a first telescopic part and a first deflection part, and the second skeleton 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, and the first deflection part is connected or disconnected with the corresponding second deflection part.

3. The high-efficiency dust removal internal and external cylindrical compound grinding machine according to claim 2, characterized in that: The first deflection part and the second deflection part both 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, the other end of the universal joint is connected to one end of the connecting rod, and the other end of the connecting rod is connected or disconnected to the other end of the corresponding other connecting rod.

4. The high-efficiency dust removal internal and external cylindrical compound grinding machine according to claim 3, characterized in that: The first telescopic part and the second telescopic part both include an outer sleeve and an inner rod, one end of the outer sleeve is fixed to the outer cylindrical grinding chuck, the inner cylindrical grinding chuck, the outer cylindrical grinding spindle or the housing of the inner cylindrical grinding spindle, and 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 the second deflection part.

5. The high-efficiency dust removal internal and external cylindrical compound grinding machine according to claim 4, characterized in that: The connecting rod length of the first deflecting portion is greater than the connecting rod length of the second deflecting portion, and a retraction structure is provided between the first telescopic portion and the first deflecting portion.

6. The high-efficiency dust removal internal and external cylindrical compound grinding machine according to claim 5, 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 arranged in 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.

7. The high-efficiency dust removal internal and external cylindrical compound grinding machine according to claim 6, characterized in that: 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, and 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. In addition, a first magnetic part is provided on the first connecting ring, and a second magnetic part corresponding to the first magnetic part is provided on the second connecting ring.

8. The high-efficiency dust removal internal and external cylindrical compound grinding machine according to claim 7, characterized in that: The first connecting ring is provided with a protruding block, the second connecting ring is provided with a socket corresponding to the protruding block, an edge of the protruding block close to the socket is provided with an inclined guide surface, and the hole of the socket is arranged in a flared manner.

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

Images