Intelligent rotating secondary propulsion main shaft device

Abstract

The invention discloses an intelligent rotating secondary propulsion main shaft device which comprises a main shaft box, a main shaft, a rotating driving mechanism, a sliding driving mechanism and a secondary propulsion mechanism. The spindle is rotatably connected into the spindle box, a built-in shaft is slidably arranged in the spindle, and one end of the built-in shaft is connected with a tip. The rotation driving mechanism is arranged on the spindle box and used for driving the spindle and the built-in shaft to rotate synchronously. The sliding driving mechanism is arranged on the spindle box and used for driving the built-in shaft to slide in the spindle. The whole main shaft shell serves as a whole, and the main shaft is driven by a high-power motor to rotate at high speed and high precision; a built-in shaft which can do independent telescopic motion along the axis of a main shaft and is driven to rotate is integrated in the rotating main shaft; the secondary propelling structure is mounted on the spindle box, so that the secondary propelling function of the spindle can be realized, the production process of workpieces can be simplified, the machining precision and the machining efficiency of the workpieces can be improved, and the production cost can be reduced to a certain extent.

Description

Technical Field

[0001] This invention belongs to the field of workpiece processing technology, specifically relating to an intelligent rotary secondary propulsion spindle device. Background Technology

[0002] In the field of industrial precision machining, higher-level composite functional requirements are placed on the spindle system of machining equipment: the spindle not only needs to drive the tool or workpiece to complete basic operations such as cutting and forming, but also needs to be able to realize the secondary propulsion of the workpiece during the machining process to meet the progressive machining needs of complex processes such as stepped and deep cavity machining; at the same time, the spindle also needs to have high-precision rotation control capabilities, and be able to adjust the speed and angle of the workpiece in real time and accurately according to the process parameters, so as to support multi-dimensional and multi-process integrated operation.

[0003] However, current mainstream traditional machining equipment generally adopts a single-function spindle design architecture, which can only realize basic rotary cutting or linear feed, making it difficult to simultaneously complete the secondary propulsion and multi-axis rotation control of the workpiece within the same system. This technical shortcoming forces the production process to be broken down, often requiring multiple machines to work together in stages: for example, preliminary machining is first completed on a standard machine tool, then it is moved to a machine with feed function to handle deep cavities or stepped structures, and finally, a special rotary table is needed for angle positioning.

[0004] This multi-equipment, multi-process processing mode not only significantly increases the complexity of the production process and management costs, but also introduces significant cumulative errors due to the repeated clamping and positioning of workpieces between different devices, directly affecting the final processing accuracy and consistency. At the same time, frequent equipment switching, workpiece handling, and realignment also prolong non-processing time, leading to a decrease in overall efficiency and an increase in production costs, making it difficult to meet the overall requirements of modern manufacturing for highly integrated, high-precision, and high-efficiency continuous processing.

[0005] Therefore, in order to address the aforementioned technical problems, it is necessary to provide an intelligent rotary secondary propulsion spindle device.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0007] The purpose of this invention is to provide an intelligent rotary secondary propulsion spindle device, which can solve the problems of existing spindles not being able to propel twice, resulting in complex workpiece production processes, low precision, low efficiency, and high costs.

[0008] To achieve the above objectives, a specific embodiment of the present invention provides the following technical solution:

[0009] A smart rotary secondary propulsion spindle device includes a spindle box, a spindle, a rotary drive mechanism, a sliding drive mechanism, and a secondary propulsion mechanism. The spindle is rotatably connected to the spindle box, and an internal shaft is slidably mounted within the spindle, with a center point connected to one end of the internal shaft. The rotary drive mechanism is mounted on the spindle box and drives the spindle and the internal shaft to rotate synchronously. The sliding drive mechanism is mounted on the spindle box and drives the internal shaft to slide within the spindle. The secondary propulsion mechanism includes a pair of electric cylinders and a push plate. The pair of electric cylinders are symmetrically arranged on the spindle box, and the push plate is connected to the free end of each electric cylinder. The internal shaft passes through the push plate. The internal shaft completes the first propulsion under the action of the sliding drive mechanism, and the push plate completes the second propulsion under the action of the pair of electric cylinders.

[0010] In one or more embodiments of the present invention, a spindle protective cover is connected to the spindle housing, the length of the built-in shaft is greater than the length of the spindle, and one end passes through the spindle protective cover.

[0011] In one or more embodiments of the present invention, the outer wall of the built-in shaft is connected to a flat key, and the inner wall of the main shaft is provided with a keyway that matches the flat key, and the flat key can slide in the keyway.

[0012] In one or more embodiments of the present invention, the rotary drive mechanism includes a reducer, a rotary motor, and a gear disk. The reducer is connected to the spindle housing, and a drive helical gear is connected to the output end of the reducer. The rotary motor is connected to the spindle protective cover plate, and its output end is connected to the reducer. The gear disk is connected to the outer wall of the spindle and meshes with the drive helical gear.

[0013] In one or more embodiments of the present invention, the number of the reducers is two, and the pair of reducers are symmetrical about the central axis of the gear disk.

[0014] In one or more embodiments of the present invention, both sides of the gear disk are provided with expansion connecting sleeves, and the gear disk is connected to the side wall of the main shaft through a pair of expansion connecting sleeves.

[0015] In one or more embodiments of the present invention, a pair of felt wheels are symmetrically arranged on the top wall of the spindle box, and the felt wheels mesh with the gear disk.

[0016] In one or more embodiments of the present invention, the sliding drive mechanism includes a support frame, an electric push cylinder, a tension / compression sensor, and a linkage mechanism. The support frame is connected to the main shaft protective cover. The electric push cylinder is connected to the support frame. The tension / compression sensor is connected to the output end of the electric push cylinder. The linkage mechanism is disposed within the support frame and connected to the built-in shaft.

[0017] In one or more embodiments of the present invention, the linkage mechanism includes a plurality of guide posts, a bearing seat, a mounting base, and a linkage seat. The guide posts are fixedly connected to the support frame. The bearing seat is slidably connected to the plurality of guide posts. The mounting base is connected to the bearing seat and rotatably connected to one end of the built-in shaft. The linkage seat is connected to the mounting base and connected to the tension / compression sensor.

[0018] In one or more embodiments of the present invention, the free end of the electric cylinder is connected to a connector, a pair of connecting seats are connected to the push plate, the pair of connecting seats correspond to the pair of connectors respectively, and a butterfly spring is provided between the connector and the connecting seat.

[0019] Compared with the prior art, the intelligent rotary secondary propulsion spindle device of the present invention treats the entire spindle housing as a whole, and the spindle is driven by a high-power motor to perform high-speed and high-precision rotary motion. Inside the rotating spindle, there is an integrated internal shaft that can move independently along the spindle axis and be driven to rotate. A secondary propulsion structure is installed on the spindle box, thereby realizing the secondary propulsion function of the spindle. This simplifies the production process of the workpiece, improves the processing accuracy and efficiency of the workpiece, and can also reduce production costs to a certain extent. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a first-angle perspective view of an intelligent rotary secondary propulsion main shaft device according to an embodiment of the present invention;

[0022] Figure 2 This is a second perspective view of an intelligent rotary secondary propulsion main shaft device according to an embodiment of the present invention;

[0023] Figure 3 for Figure 2 Schematic diagram of the structure at point A in the middle;

[0024] Figure 4 This is a perspective view of a rotary drive mechanism in one embodiment of the present invention;

[0025] Figure 5 This is a top view of a rotary drive mechanism in one embodiment of the present invention;

[0026] Figure 6This is a perspective view of the sliding drive mechanism at a first angle in one embodiment of the present invention;

[0027] Figure 7 This is a perspective view of the sliding drive mechanism from a second angle in one embodiment of the present invention;

[0028] Figure 8 This is a top view of a sliding drive mechanism in one embodiment of the present invention;

[0029] Figure 9 This is a front cross-sectional view of an intelligent rotary secondary propulsion main shaft device according to an embodiment of the present invention;

[0030] Figure 10 for Figure 9 Schematic diagram of the structure at point B.

[0031] Explanation of key figure labels:

[0032] 1-Spindle box, 101-Spindle protective cover, 2-Spindle, 201-Built-in shaft, 3-Rotary drive mechanism, 301-Reducer, 302-Drive helical gear, 303-Rotary motor, 304-Gear disc, 305-Felt wheel, 4-Sliding drive mechanism, 401-Support frame, 402-Electric push cylinder, 403-Tension / compression sensor, 404-Guide column, 405-Bearing seat, 406-Mounting seat, 407-Linkage seat, 5-Secondary propulsion mechanism, 501-Electric cylinder, 5011-Connector, 502-Push plate, 5021-Connecting seat, 503-Butterfly spring. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0034] like Figures 1 to 10As shown, an intelligent rotary secondary propulsion spindle device according to an embodiment of the present invention includes a spindle box 1, a spindle 2, a rotary drive mechanism 3, a sliding drive mechanism 4, and a secondary propulsion mechanism 5. The spindle 2 is rotatably connected to the spindle box 1, and a built-in shaft 201 is slidably mounted inside the spindle 2, with a center point connected to one end of the built-in shaft 201. The rotary drive mechanism 3 is mounted on the spindle box 1 and is used to drive the spindle 2 and the built-in shaft 201 to rotate synchronously. The sliding drive mechanism 4 is mounted on the spindle box 1 and is used to drive the built-in shaft 201 to slide within the spindle 2. The secondary propulsion mechanism 5 includes a pair of electric cylinders 501 and a push plate 502. The pair of electric cylinders 501 are symmetrically arranged on the spindle box 1, and the push plate 502 is connected to the free end of the electric cylinders 501. The built-in shaft 201 passes through the push plate 502. The built-in shaft 201 completes the first propulsion under the action of the sliding drive mechanism 4, and the push plate 502 completes the second propulsion under the action of the pair of electric cylinders 501.

[0035] The spindle box 1 is used to mount the spindle 2, the rotary drive mechanism 3, the sliding drive mechanism 4, and the secondary propulsion mechanism 5. The spindle 2 drives the internal shaft 201 to rotate synchronously. The internal shaft 201 provides the initial propulsion. The rotary drive mechanism 3 drives the spindle 2 and the internal shaft 201 to rotate synchronously. The sliding drive mechanism 4 drives the internal shaft 201 to slide within the spindle 2, thus providing the initial propulsion. The push plate 502, under the action of a pair of electric cylinders 501, provides the secondary propulsion, thereby simplifying the workpiece production process, improving workpiece machining accuracy and efficiency, and to some extent reducing production costs.

[0036] The spindle housing 1 is connected to a spindle protective cover 101. The length of the built-in shaft 201 is greater than the length of the spindle 2, and one end passes through the spindle protective cover 101. In this way, the built-in shaft 201 can move within the spindle 2 to achieve the first propulsion action.

[0037] In addition, a flat key is connected to the outer wall of the built-in shaft 201, and a keyway matching the flat key is provided on the inner wall of the spindle 2. The flat key can slide within the keyway. By sliding the flat key within the keyway, not only can the built-in shaft 201 slide within the spindle 2 to achieve the first propulsion action, but the built-in shaft 201 can also rotate with the spindle 2 to meet the processing requirements of the workpiece.

[0038] like Figures 4 to 5 As shown, the rotary drive mechanism 3 includes a reducer 301, a rotary motor 303, and a gear disk 304. The reducer 301 is connected to the spindle housing 1, and a drive helical gear 302 is connected to the output end of the reducer 301. The rotary motor 303 is connected to the spindle protective cover plate 101, and its output end is connected to the reducer 301. The gear disk 304 is connected to the outer wall of the spindle 2 and meshes with the drive helical gear 302.

[0039] When the rotary motor 303 is running, it drives the helical gear 302 to rotate via the reducer 301. Since the helical gear 302 meshes with the gear disk 304, it can drive the gear disk 304 to rotate. The gear disk 304 is connected to the outer wall of the main shaft 2, and the helical gear 302 enables the main shaft 2 to rotate. The main shaft 2 can synchronously rotate the inner shaft 201 via a flat key and keyway.

[0040] In this embodiment, there are two reducers 301, and the pair of reducers 301 are symmetrical about the central axis of the gear disk 304. By setting up a pair of reducers 301, the frictional clearance between the driving helical gear 302 and the gear disk 304 can be reduced.

[0041] The gear disk 304 is equipped with expansion sleeves on both sides, and the gear disk 304 is connected to the side wall of the main shaft 2 through a pair of expansion sleeves. This ensures the secure installation of the gear disk 304.

[0042] In addition, a pair of felt wheels 305 are symmetrically arranged on the top wall of the main spindle box 1, and the felt wheels 305 mesh with the gear disk 304. The arrangement of the felt wheels 305 can ensure the smooth operation of the gear disk 304, thereby ensuring the rotational stability of the gear disk 304.

[0043] like Figures 6 to 10 As shown, the sliding drive mechanism 4 includes a support frame 401, an electric push cylinder 402, a tension / compression sensor 403, and a linkage mechanism. The support frame 401 is connected to the main shaft protective cover plate 101. The electric push cylinder 402 is connected to the support frame 401. The tension / compression sensor 403 is connected to the output end of the electric push cylinder 402. The linkage mechanism is located inside the support frame 401 and is connected to the built-in shaft 201.

[0044] The support frame 401 is used to mount the electric push cylinder 402, which, through a linkage mechanism, can drive the built-in shaft 201 to slide within the main shaft 2. The tension / compression sensor 403 can monitor the force between the built-in shaft 201 and the workpiece to control the extension / retraction length of the built-in shaft 201. The linkage mechanism connects the built-in shaft 201 to the electric push cylinder 402, allowing the electric push cylinder 402 to control the sliding of the built-in shaft 201 within the main shaft 2.

[0045] like Figures 1 to 10 As shown, the linkage mechanism includes multiple guide posts 404, bearing seats 405, mounting seats 406, and linkage seats 407. The guide posts 404 are fixedly connected to the support frame 401. The bearing seats 405 are slidably connected to the multiple guide posts 404. The mounting seats 406 are connected to the bearing seats 405 and rotatably connected to one end of the built-in shaft 201. The linkage seats 407 are connected to the mounting seats 406 and are connected to the tension / compression sensor 403.

[0046] The guide post 404 is used to guide the sliding of the bearing housing 405, and the bearing housing 405 is used to install the mounting base 406 and the linkage base 407. The rotational connection between the built-in shaft 201 and the mounting base 406 does not affect the normal rotation of the built-in shaft 201, and at the same time, the electric push cylinder 402 can drive the built-in shaft 201 to slide within the main shaft 2 through the mounting base 406 and the bearing housing 405.

[0047] like Figures 2 to 3 As shown, the free end of the electric cylinder 501 is connected to a connector 5011, and a pair of connecting seats 5021 are connected to the push plate 502. The pair of connecting seats 5021 correspond to the pair of connectors 5011, and a disc spring 503 is provided between the connector 5011 and the connecting seat 5021. Through the cooperation of the connector 5011, the connecting seat 5021 and the disc spring 503, the hard compression on the push plate 502 can be reduced, and damage to the electric cylinder 501 can be avoided.

[0048] In practical use, when the first push is required, the electric push cylinder 402 is operated, which moves the tension / compression sensor 403. The tension / compression sensor 403, through the linkage seat 407 and the mounting seat 406, allows the bearing seat 405 to slide on the guide post 404. Since the built-in shaft 201 is rotatably connected to the mounting seat 406, it can move within the main shaft 2, thus achieving the first push.

[0049] When a second push is needed, the electric cylinder 501 is operated. The electric cylinder 501 drives the push plate 502 to move through the connector 5011 and the connecting seat 5021, thus realizing the second push.

[0050] When the built-in shaft 201 needs to rotate, the rotary motor 303 is controlled to run, and the rotary motor 303 drives the helical gear 302 to rotate through the reducer 301. Since the driving helical gear 302 meshes with the gear disk 304, the driving helical gear 302 can drive the gear disk 304 to rotate. The gear disk 304 is connected to the outer wall of the main shaft 2, and the driving helical gear 302 can make the main shaft 2 rotate. The main shaft 2 can then make the built-in shaft 201 rotate synchronously through the action of the flat key and keyway.

[0051] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An intelligent rotary secondary propulsion main shaft device, characterized in that, include: Spindle box; A spindle is rotatably connected inside the spindle box, and an internal shaft is slidably installed inside the spindle, with a center connected to one end of the internal shaft; A rotary drive mechanism, mounted on the spindle box, is used to drive the spindle and the built-in shaft to rotate synchronously. A sliding drive mechanism is provided on the spindle box for driving the built-in shaft to slide within the spindle; The secondary propulsion mechanism includes a pair of electric cylinders and a push plate. The pair of electric cylinders are symmetrically arranged on the main shaft box. The push plate is connected to the free end of the electric cylinders. The built-in shaft passes through the push plate. The built-in shaft is advanced for the first time under the action of the sliding drive mechanism, and the push plate is advanced for the second time under the action of a pair of electric cylinders.

2. The intelligent rotary secondary propulsion main shaft device according to claim 1, characterized in that, The spindle housing is connected to a spindle protective cover plate. The length of the built-in shaft is greater than the length of the spindle, and one end of the shaft passes through the spindle protective cover plate.

3. The intelligent rotary secondary propulsion main shaft device according to claim 1, characterized in that, The outer wall of the built-in shaft is connected to a flat key, and the inner wall of the main shaft is provided with a keyway that matches the flat key. The flat key can slide in the keyway.

4. The intelligent rotary secondary propulsion main shaft device according to claim 2, characterized in that, The rotary drive mechanism includes: A speed reducer is connected to the main shaft box, and a drive helical gear is connected to the output end of the speed reducer; A rotary motor is connected to the main shaft protective cover plate, and its output end is connected to the reducer; The gear disk is connected to the outer wall of the main shaft and meshes with the drive helical gear.

5. The intelligent rotary secondary propulsion main shaft device according to claim 4, characterized in that, The number of speed reducers is two, and the pair of speed reducers are symmetrical about the central axis of the gear disk.

6. The intelligent rotary secondary propulsion main shaft device according to claim 4, characterized in that, Both sides of the gear disk are provided with expansion sleeves, and the gear disk is connected to the side wall of the main shaft through a pair of expansion sleeves.

7. The intelligent rotary secondary propulsion main shaft device according to claim 6, characterized in that, A pair of felt wheels are symmetrically arranged on the top wall of the spindle box, and the felt wheels mesh with the gear disk.

8. The intelligent rotary secondary propulsion main shaft device according to claim 2, characterized in that, The sliding drive mechanism includes: Support frame, connected to the main shaft protective cover plate; An electric push cylinder is connected to the support frame; A tension / compression sensor is connected to the output end of the electric push cylinder; The linkage mechanism is located inside the support frame and is connected to the built-in shaft.

9. The intelligent rotary secondary propulsion main shaft device according to claim 8, characterized in that, The linkage mechanism includes: Multiple guide posts are fixedly connected to the support frame; The bearing housing is slidably connected to the plurality of guide posts; The mounting base is connected to the bearing housing and is rotatably connected to one end of the built-in shaft; The linkage seat is connected to the mounting base and is also connected to the tension / compression sensor.

10. The intelligent rotary secondary propulsion main shaft device according to claim 1, characterized in that, The free end of the electric cylinder is connected to a connector, and a pair of connecting seats are connected to the push plate. Each pair of connecting seats corresponds to a pair of connectors, and a butterfly spring is provided between the connector and the connecting seat.

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