Maintenance tool suitable for miniature high-speed motorized spindle

Abstract

The utility model relates to a maintenance tool suitable for a miniature high-speed motorized spindle, which comprises a spindle head limiting device and a spindle tail limiting device, the spindle head limiting device comprises a contact base, a spindle head accommodating cavity is arranged in the contact base, a plurality of locking adjusting pieces are movably arranged on the contact base, the contact ends of the locking adjusting pieces extend into the spindle head accommodating cavity, and the spindle tail limiting device is arranged on the contact base. A receding mechanism and a shaft tail limiting device are arranged at the bottom of the contact base, a force application base is included, the force application base is provided with a contact end face, a plurality of contact mechanisms are arranged on the contact end face, and a force application transmission mechanism is further arranged on the contact end face. Therefore, the two ends of the miniature high-speed motorized spindle can be limited at the same time, the miniature high-speed motorized spindle is started through different force application directions, a complicated clamp does not need to be arranged for assisting in limiting, and use convenience is improved. According to needs, separation can be achieved in a bare-handed mode or by means of a vice, and operation is easy.

Description

Technical Field

[0001] The utility model relates to a maintenance tool, in particular to a maintenance tool suitable for a micro high-speed electric spindle. Background Art

[0002] Existing high-precision machine tools often feature micro electric spindles, particularly in high-gloss lathes and Swiss-type lathes. These spindles can reach speeds of 60,000-100,000 RPM and are widely used in the machining and manufacturing of high-precision products such as medical devices, aviation, and aerospace.

[0003] For example, during daily use, CNC machine tools are exposed to oil, gas, or cutting fluid during machining. Long-term exposure to these conditions can easily damage the spindle, making replacement of the entire spindle expensive. Therefore, disassembly and maintenance are necessary.

[0004] However, currently, there is no suitable tooling for disassembling and assembling the spindle. Disassembly is performed using traditional methods, which can easily cause destructive damage. Furthermore, conventional methods use vises and other clamping tools to hold the spindle surface, which can cause numerous scratches and affect assembly accuracy.

[0005] In view of the above-mentioned defects, the designers have actively carried out research and innovation in order to create a maintenance tool suitable for micro high-speed electric spindles, making it more valuable for industrial use. Utility Model Content

[0006] In order to solve the above technical problems, the purpose of the utility model is to provide a maintenance tool suitable for a micro high-speed electric spindle.

[0007] The utility model is suitable for a maintenance tool for a micro high-speed electric spindle, comprising a shaft head limiting device and a shaft tail limiting device, wherein: the shaft head limiting device comprises a contact base, a shaft head receiving cavity is provided in the contact base, a plurality of locking adjustment members are movably provided on the contact base, the contact end of the locking adjustment member extends into the shaft head receiving cavity, a yielding mechanism is provided at the bottom of the contact base, the shaft tail limiting device comprises a force base, the force base is provided with a contact end face, a plurality of contact mechanisms are provided on the contact end face, and a force transmission mechanism is also provided on the contact end face.

[0008] Furthermore, the above-mentioned maintenance tool suitable for a micro high-speed electric spindle, wherein the locking adjustment member is an adjusting screw, and the contact base is provided with threaded guide holes located in the same horizontal plane and distributed in a cross, and the adjusting screw is connected to the threaded guide holes.

[0009] Furthermore, in the above-mentioned maintenance tool suitable for a micro high-speed electric spindle, the adjusting screw is provided with a cross countersunk groove; or, the adjusting screw is provided with a hexagonal countersunk groove.

[0010] Furthermore, in the above-mentioned maintenance tool suitable for a micro high-speed electric spindle, a horizontal contact surface is provided on the front side of the adjusting screw; or a silicone contact block is provided on the front side of the adjusting screw.

[0011] Furthermore, in the above-mentioned maintenance tool suitable for a micro high-speed electric spindle, the said yielding mechanism is a yielding hole.

[0012] Furthermore, in the above-mentioned maintenance tool suitable for a micro high-speed electric spindle, a contact joint surface is provided at the top corner of the side edge of the contact base.

[0013] Furthermore, in the above-mentioned maintenance tool suitable for a micro high-speed electric spindle, the contact mechanism is a plug-in guide column, and the cross-section of the plug-in guide column is elliptical; or, the cross-section of the plug-in guide column is rectangular.

[0014] Furthermore, in the above-mentioned maintenance tool suitable for a micro high-speed electric spindle, the force transmission mechanism is a through groove, and the cross section of the through groove is hexagonal; or, the cross section of the through groove is rectangular.

[0015] Furthermore, in the above-mentioned maintenance tool suitable for a micro high-speed electric spindle, the cross-section of the force-applying base is an octagon.

[0016] Furthermore, in the above-mentioned maintenance tool suitable for a micro high-speed electric spindle, the shaft head limiting device is provided with a plug-in limiting seat.

[0017] By means of the above solution, the present invention has at least the following advantages:

[0018] 1. Both ends of the micro high-speed electric spindle can be limited at the same time. The micro high-speed electric spindle can be opened by applying force in different directions. There is no need to configure complicated fixtures to assist in limiting, which improves the convenience of use.

[0019] 2. It can be separated by hand or with the help of a vise as needed, and the operation is relatively simple.

[0020] 3. It can meet the requirements of lossless stable limit, avoid separation damage caused by limit error, and realize lossless disassembly and maintenance.

[0021] 4. The overall structure is simple and can be customized and replaced according to the special models of micro high-speed electric spindles, with good versatility.

[0022] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the shaft head limiting device.

[0024] Figure 2 It is a schematic diagram of the front structure of the locking adjustment part of the cross countersunk groove.

[0025] Figure 3 It is a schematic diagram of the front structure of the locking adjustment part of the hexagonal countersunk groove.

[0026] Figure 4 It is a schematic diagram of the front structure of the shaft tail limit device.

[0027] Figure 5 It is a schematic diagram of the reverse structure of the shaft tail limit device.

[0028] Figure 6 It is a schematic diagram of the structure of a shaft tail limiting device in which the cross section of the through groove is rectangular.

[0029] Figure 7 It is a schematic diagram of the implementation of using a vise to apply force.

[0030] Figure 8 It is an implementation diagram using a plug-in limit seat and a right-angle wrench.

[0031] The meanings of the reference numerals in the figures are as follows.

[0032] DETAILED DESCRIPTION

[0033] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0034] like Figures 1 to 8The maintenance tooling suitable for a micro high-speed electric spindle includes a shaft head limiting device 1 and a shaft tail limiting device 2. The difference lies in that the shaft head limiting device 1 includes a contact base 3, and a shaft head receiving cavity 4 is provided in the contact base 3, which is used to limit the upper end area of the micro high-speed electric spindle 16 after inversion. At the same time, considering that there are differences in the appearance of the upper end area of the micro high-speed electric spindle 16, in order to meet better locking and limiting requirements, a number of locking adjustment members 5 are movably provided on the contact base 3, and the contact end of the locking adjustment member 5 extends into the shaft head receiving cavity 4. Thus, the locking adjustment member 5 can be used to contact the upper end area of the micro high-speed electric spindle 16 for appropriate clamping and limiting. In addition, a yielding mechanism 6 is provided at the bottom of the contact base 3. In this way, the shaft head or connector terminal in the upper end area of the micro high-speed electric spindle 16 can be yielded to avoid pressure on it and improper damage.

[0035] During implementation, the shaft tail limit device 2 used includes a force base 7, which is provided with a contact end surface 8. During use, the contact end surface 8 can be used to contact the rear end of the micro high-speed electric spindle 16, facilitating subsequent force application through tools. At the same time, a number of contact mechanisms 9 are provided on the contact end surface 8, which can be inserted into the rear end locking holes of the micro high-speed electric spindle 16 to achieve effective engagement and positioning. In addition, in order to allow external tools to be combined with the shaft tail limit device 2 and facilitate user operation and force application, a force transmission mechanism 10 is also provided on the contact end surface 8.

[0036] In combination with a preferred embodiment of the present invention, a locking adjustment member 5 is used as an adjustment screw, and threaded guide holes located in the same horizontal plane and distributed crosswise are provided on the contact base 3, and the adjustment screw is connected to the threaded guide hole. In this way, the upper end area of the micro high-speed electric spindle 16 can be force-contacted and locked in a cross manner to avoid unnecessary displacement. When tools are subsequently used to separate it, it will not be damaged by separation due to skewness or displacement. In order to allow for better force locking during user adjustment of the adjustment screw, the adjustment screw used is provided with a cross countersunk groove 11. Alternatively, the adjustment screw is provided with a hexagonal countersunk groove 12. In this way, it can be compatible with the types of screwdrivers in currently commonly used maintenance tools without the need for additional independent auxiliary tools. In addition, the utility model can be provided with a horizontal contact surface on the front side of the adjustment screw. In this way, it can be avoided that sharp parts may scratch the micro high-speed electric spindle 16. Of course, for some micro high-speed electric spindles 16 with smaller diameters, a silicone contact block can be provided on the front side of the adjustment screw to provide appropriate contact cushioning and avoid abnormal deformation of the contact surface under hard extrusion contact. In this way, the silicone contact block can increase the friction of the contact surface and achieve appropriate flexible contact cushioning.

[0037] Furthermore, the clearance mechanism 6 is a clearance hole. This allows for the common distribution areas of shaft heads or connector terminals to be accommodated. Furthermore, contact surfaces are provided at the top corners of the side edges of the contact base 3. This facilitates subsequent clamping with a clamping tool such as a vise 14, preventing slippage and ensuring smooth force application.

[0038] In view of actual implementation, the currently common locking holes are mainly cylindrical grooves. For this reason, the contact mechanism 9 adopted in the present invention is a plug-in guide column. Specifically, in order to achieve proper fitting and avoid slipping, the cross-section of the plug-in guide column adopted is elliptical. At the same time, for some special models of miniature high-speed electric spindles 16, they will also use cylindrical rectangular holes to form locking holes. The cross-section of the plug-in guide column adopted in the present invention can also be rectangular. Of course, during implementation, the number and position of the contact mechanism 9 can be customized according to the actual situation of the locking hole, which will not be repeated here.

[0039] Furthermore, the force transmission mechanism 10 is a through slot with a hexagonal or rectangular cross section, so that it can fit the hexagonal or rectangular plug rod at the front end of a commonly used right-angle wrench 15 to achieve locking engagement.

[0040] For certain special applications, the cross-section of the force-applying base 7 is octagonal. This allows users to directly grip and apply force to smaller-diameter micro high-speed electric spindles 16, providing a suitable anti-slip effect. Furthermore, for micro high-speed electric spindles 16 with extended locking shafts, the spindle head limit device 1 can be equipped with a plug-in limit seat 13. This plug-in limit seat 13 can be combined with maintenance fixtures, facilitating the use of pneumatic equipment to assist in force application and enabling the separate maintenance of the micro high-speed electric spindle 16.

[0041] The working principle of this utility model is as follows:

[0042] First, the upper end area of the micro high-speed electric spindle 16 is inverted and inserted into the shaft head receiving cavity 4 belonging to the contact base 3. During this period, it should be noted that the shaft head or the plug terminal attached to the upper end is placed in the yield mechanism 6.

[0043] Afterwards, the four locking adjustment members 5 are tightened to cross-clamp the upper end of the micro high-speed electric spindle 16 .

[0044] Then, a force-applying base 7 of a corresponding model is selected and the contact mechanism 9 on the base 7 is inserted into the locking hole to ensure that the contact end face 8 is completely fitted with the lower end of the micro high-speed electric spindle 16 .

[0045] If the target is a conventional miniature high-speed electric spindle 16 , a corresponding right-angle wrench 15 is selected and inserted into the force transmission mechanism 10 . The miniature high-speed electric spindle 16 can be separated by holding the wrench in one hand and the contact base 3 in the other hand.

[0046] For a micro high-speed electric spindle 16 with an extended locking shaft, insert the spindle end stopper 1 into the connector stopper 13 and connect it to the steering fixture via the connector stopper 13. Next, use a T-shaped wrench or a conventional wrench and insert its force-applying end into the force-applying mechanism 10. The micro high-speed electric spindle 16 is opened with the auxiliary force of the steering fixture.

[0047] If the target is some relatively slender micro high-speed electric spindle 16, a vise 14 can also be used to assist the user to better grasp and apply force. At the same time, it can meet the requirements of continuous and stable force application without causing separation damage.

[0048] It can be seen from the above text description and the accompanying drawings that the present invention has the following advantages:

[0049] 1. Both ends of the micro high-speed electric spindle can be limited at the same time. The micro high-speed electric spindle can be opened by applying force in different directions. There is no need to configure complicated fixtures to assist in limiting, which improves the convenience of use.

[0050] 2. It can be separated by hand or with the help of a vise as needed, and the operation is relatively simple.

[0051] 3. It can meet the requirements of lossless stable limit, avoid separation damage caused by limit error, and realize lossless disassembly and maintenance.

[0052] 4. The overall structure is simple and can be customized and replaced according to the special models of micro high-speed electric spindles, with good versatility.

[0053] In addition, the indicated orientations or positional relationships described in the present invention are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or structure referred to must have a specific orientation or be operated in a specific orientation structure. Therefore, they cannot be understood as a limitation on the present invention.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. Suitable for maintenance tooling of micro high-speed electric spindles, including a spindle head limit device and a spindle tail limit device, characterized by: The shaft head limiting device includes a contact base, a shaft head receiving cavity is provided in the contact base, a plurality of locking adjustment members are movably provided on the contact base, the contact end of the locking adjustment member extends into the shaft head receiving cavity, and a yielding mechanism is provided at the bottom of the contact base; the shaft tail limiting device includes a force base, the force base is provided with a contact end surface, a plurality of contact mechanisms are provided on the contact end surface, and a force transmission mechanism is also provided on the contact end surface; The locking adjustment member is an adjustment screw, the contact base is provided with threaded guide holes located in the same horizontal plane and distributed in a cross pattern, and the adjustment screws are connected to the threaded guide holes; the adjustment screw is provided with a cross countersunk groove; or, the adjustment screw is provided with a hexagonal countersunk groove; the front side of the adjustment screw is provided with a horizontal contact surface; or, the front side of the adjustment screw is provided with a silicone contact block; The said giving way mechanism is a giving way hole; the said contact base is provided with a contact joint surface at the side top corner; the said contact mechanism is a plug-in guide column, and the cross section of the said plug-in guide column is an ellipse; or, the cross section of the said plug-in guide column is a rectangle; The force transmission mechanism is a through groove, and the cross section of the through groove is hexagonal; or, the cross section of the through groove is rectangular; the cross section of the force base is octagonal; the shaft head limiting device is equipped with a plug-in limiting seat.

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