Horizontal machining center rotary exchange door

Abstract

A horizontal machining center rotary exchange door, the horizontal machining center rotary exchange door includes exchange door main body, the rotating shaft assembly is arranged at the intermediate position of exchange door main body upper end, the telescopic shaft assembly is arranged above rotating shaft assembly, the crossbeam is arranged above telescopic shaft assembly;The lower end of the exchange door main body is connected with the machine tool exchange workbench;The upper end of the exchange door main body is provided with movable sealing plate, the central part of the movable sealing plate is provided with the shaft hole of installing rotating shaft assembly;The rotating shaft assembly includes rotating shaft, shaft sleeve fixed flange, rotating shaft sleeve, shaft sleeve cover plate.The horizontal machining center rotary exchange door provided by the application, the rotary exchange door structure is strong in rigidity, runs stably, and can be suitable for various working conditions.

Description

Technical Field

[0001] This invention relates to the field of horizontal machine tool processing technology, and more specifically, to a rotary exchange door for a horizontal machining center. Background Technology

[0002] The rotary exchange door of the exchange table in a horizontal machining center is the core protective component for realizing automatic table exchange. It serves to isolate and protect the machining area from the preparation area, open and close the exchange channel, and seal and block cutting fluid and metal chips. Currently used rotary doors suffer from problems such as easy wear and aging of seals, poor maintenance convenience, insufficient structural rigidity, and poor adaptability to working conditions.

[0003] In practical applications, poor sealing performance is a common problem, causing cutting fluid and metal shavings from the machining area to easily leak into the preparation area. This not only contaminates the working environment but may also affect the normal operation of the equipment and the accuracy of worktable exchanges. Furthermore, some exchange doors have complex structures with many moving parts, leading to a high failure rate, inconvenient maintenance, and insufficient stability during rapid exchanges, thus impacting the overall efficiency of the horizontal machining center. In addition, the drive and transmission mechanisms of some exchange doors are not optimally designed, making it difficult to meet the opening and closing speed and position control accuracy requirements of modern high-efficiency machining. Summary of the Invention

[0004] Therefore, it is necessary to address the problems of easy aging of seals, inconvenient maintenance, insufficient structural rigidity, and poor adaptability to working conditions in existing horizontal machining center rotary exchange doors. A new rotary exchange door for horizontal machining centers should be provided, which features strong structural rigidity, stable operation, and applicability to various working conditions.

[0005] A rotary exchange door for a horizontal machining center includes an exchange door body, a rotating shaft assembly positioned at the upper middle of the exchange door body, a telescopic shaft assembly positioned above the rotating shaft assembly, and a crossbeam positioned above the telescopic shaft assembly. The lower end of the exchange door body is connected to the machine tool exchange worktable. A movable sealing plate is provided at the upper end of the exchange door body, and a shaft hole for mounting the rotating shaft assembly is provided in the center of the movable sealing plate. The rotating shaft assembly includes a rotating shaft, a bushing fixing flange, a rotating bushing, and a bushing cover plate. The bushing fixing flange, the rotating bushing, and the shaft hole are coaxially arranged. The bushing fixing flange is fixed to the upper surface of the movable sealing plate. The rotating bushing is positioned on the upper side of the bushing fixing flange. The bushing cover plate is fixedly connected to the upper end of the rotating bushing. The rotating shaft is disposed within the cavity formed by the shaft hole, the bushing fixing flange, the rotating bushing, and the bushing cover plate. The lower end of the rotating shaft is fixedly connected to the upper surface of the exchange door body. A gap exists between the sealing plate and the upper surface of the exchange door body.

[0006] Furthermore, the telescopic shaft assembly includes a telescopic shaft, a spring, and a telescopic shaft flange. The spring is sleeved on the telescopic shaft, the telescopic shaft flange is fixed to the upper end face of the crossbeam, the lower end of the telescopic shaft abuts against the bushing cover plate, the upper end of the telescopic shaft is located inside the telescopic shaft flange, and the telescopic shaft can move up and down inside the telescopic shaft flange.

[0007] Furthermore, the rotating shaft is a stepped shaft, with the lower end of the stepped shaft located inside the bushing fixing flange and the upper end of the stepped shaft located inside the rotating bushing.

[0008] Furthermore, a rotating copper ring is provided between the step of the stepped shaft and the bushing fixing flange.

[0009] Furthermore, the side wall of the rotating bushing is provided with an oil nozzle.

[0010] Furthermore, a detection ring is provided at the upper end of the telescopic shaft, and a proximity switch is provided on the crossbeam. The proximity switch is used to detect whether the detection ring has been raised to the correct position.

[0011] Furthermore, a sealing ring is provided between the upper end of the telescopic shaft and the flange of the telescopic shaft.

[0012] Furthermore, the upper end of the sealing plate has protruding upper edges on both sides, and the lower end of the sealing plate has protruding lower edges on both sides; the lower end face of the crossbeam has a groove that matches the sealing plate, and when the exchange door body is in a normal state, the upper edge abuts against the lower edge of the groove.

[0013] Furthermore, when the main body of the exchange door rises to its highest position, the upper end face of the lower edge abuts against the lower side of the groove.

[0014] Furthermore, the height of the groove is slightly higher than the height of the sealing plate.

[0015] This invention provides a rotary exchange door for a horizontal machining center. Through a collaborative structure of the exchange door body, rotating shaft assembly, telescopic shaft assembly, and crossbeam, it achieves stable rotation and precise lifting of the door. The rotating shaft assembly employs a stepped shaft design with a copper ring, effectively reducing rotational friction and improving structural rigidity. The telescopic shaft assembly uses a spring to provide continuous downward pressure, combined with a detection ring and proximity switch, ensuring the door accurately rises to its designated position and reliably falls back during the exchange process. The interlocking design between the upper and lower edges of the sealing plate and the crossbeam groove, along with the sealing ring at the telescopic shaft flange, significantly enhances the sealing performance between the machining and preparation areas, effectively preventing leakage of cutting fluid and metal chips. The inclusion of grease fittings facilitates lubrication and maintenance of the rotating shaft sleeve. The overall structure is compact, with simplified moving parts, reducing the failure rate and improving maintenance convenience. It can adapt to the rapid and high-precision exchange requirements of horizontal machining center worktables under different working conditions, providing a reliable guarantee for the efficient and stable operation of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a rotary exchange door for a horizontal machining center according to the present invention. Figure 2 This is a cross-sectional view of the telescopic shaft assembly and the rotary shaft assembly of the present invention; Figure 3 The images show a front view, a side view, and a partially enlarged view of a rotary exchange door for a horizontal machining center according to the present invention. Attached Figure

[0017] 100 Exchange door body, 200 Rotary shaft assembly, 300 Telescopic shaft assembly, 400 Crossbeam, 110 Sealing plate, 210 Rotary shaft, 220 Shaft sleeve fixing flange, 230 Rotary shaft sleeve, 240 Shaft sleeve cover plate, 310 Telescopic shaft, 320 Spring, 330 Telescopic shaft flange, 410 Groove, 111 Upper edge, 112 Lower edge. Detailed Implementation

[0018] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0019] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "end," "top," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] This invention provides a rotary exchange door for a horizontal machining center, comprising an exchange door body, a rotating shaft assembly positioned at the upper middle of the exchange door body, a telescopic shaft assembly positioned above the rotating shaft assembly, and a crossbeam positioned above the telescopic shaft assembly; the lower end of the exchange door body is connected to the machine tool exchange worktable; a movable sealing plate is provided at the upper end of the exchange door body, and a shaft hole for mounting the rotating shaft assembly is provided in the center of the movable sealing plate; the rotating shaft assembly includes a rotating shaft, a bushing fixing flange, a rotating bushing, and a bushing cover plate; the bushing fixing flange, the rotating bushing, and the shaft hole are coaxially arranged; the bushing fixing flange is fixed to the upper surface of the rotary sealing plate; the rotating bushing is positioned on the upper side of the bushing fixing flange; the bushing cover plate is fixedly connected to the upper end of the rotating bushing; the rotating shaft is positioned within the cavity formed by the shaft hole, the bushing fixing flange, the rotating bushing, and the bushing cover plate; the lower end of the rotating shaft is fixedly connected to the upper end of the exchange door body; and a gap exists between the sealing plate and the upper surface of the exchange door body.

[0022] This invention provides a rotary exchange door for a horizontal machining center. Through a coordinated structure of the exchange door body, a rotating shaft assembly, a telescopic shaft assembly, and a crossbeam, stable rotation and precise lifting of the door are achieved. The lower end of the exchange door body is connected to the machine tool worktable. When the worktable rises or falls, the exchange door body rises and falls along with it, as does the rotating shaft assembly and the sealing plate. Once the machine tool worktable is in position, as it rotates to exchange the machining area and the preparation area, the rotating shaft assembly drives the exchange door body to rotate, effectively isolating the preparation area from the machining area.

[0023] The following description, in conjunction with specific embodiments, illustrates a rotary exchange door for a horizontal machining center, in order to further understand the inventive concept of the novel wall-mounted guide rail protective cover.

[0024] like Figure 1-2 As shown, the rotary exchange door of the horizontal machining center includes an exchange door body 100, a rotary shaft assembly 200 located at the middle of the upper end of the exchange door body 100, a telescopic shaft assembly 300 located above the rotary shaft assembly 200, and a crossbeam 400 located above the telescopic shaft assembly 300; the lower end of the exchange door body 100 is connected to the machine tool exchange worktable; a movable sealing plate 110 is provided at the upper end of the exchange door body 100, and a shaft hole for installing the rotary shaft assembly 200 is provided in the center of the movable sealing plate 110; the rotary shaft assembly 200 includes a rotating shaft 210, a bushing fixing flange 220, a rotating bushing 230, and a bushing cover plate 24. 0; The bushing fixing flange 220 and the rotating bushing 230 are coaxially arranged with the shaft hole. The bushing fixing flange 220 is fixed to the upper end face of the movable sealing plate 110. The rotating bushing 230 is disposed on the upper side of the bushing fixing flange 220. The bushing cover plate 240 is fixedly connected to the upper end of the rotating bushing 230. The rotating shaft 210 is disposed in the cavity 250 formed by the shaft hole, the bushing fixing flange 220, the rotating bushing 230, and the bushing cover plate 240. The lower end of the rotating shaft 210 is fixedly connected to the upper end of the exchange door body 100. There is a gap between the sealing plate 110 and the upper end face of the exchange door body 100. When the machine tool exchange worktable needs to exchange the processing area and the preparation area, the machine tool exchange worktable rises first, the exchange door body 100 rises together, and the rotating shaft assembly 200 and the telescopic shaft assembly 300 also rise together. During the rising process, the telescopic shaft assembly 300 compresses and stores elastic potential energy. After rising to its designated position, the machine tool exchange table begins to rotate, switching between the processing area and the preparation area. At this time, the exchange door body 100 also rotates under the action of the rotating shaft assembly. After the switching between the processing area and the preparation area is completed, the machine tool exchange table descends, and the exchange door body 100 descends along with it. The rotating shaft assembly 200 and the telescopic shaft assembly 300 also reset together. While the exchange door body 100 rotates, the sealing plate 110 does not rotate.

[0025] In another embodiment, such as Figure 2As shown, the telescopic shaft assembly 300 includes a telescopic shaft 310, a spring 320, and a telescopic shaft flange 330. The spring 320 is sleeved on the telescopic shaft 310, and the telescopic shaft flange 330 is fixed to the upper end face of the crossbeam 400. The lower end of the telescopic shaft 310 abuts against the bushing cover plate 240, and the upper end of the telescopic shaft 310 is located inside the telescopic shaft flange 330. The telescopic shaft 310 can move up and down within the telescopic shaft flange 330. The lower end of the telescopic shaft 310 is also stepped, and the spring 320 is located between the upper end face of the step and the lower end face of the telescopic shaft flange 330. When the exchange door body 100 rises, it will bring the rotating shaft assembly 200 up with it. Since the lower end of the telescopic shaft 310 abuts against the bushing cover plate 240, the rotating shaft assembly 200 will lift the telescopic shaft 310 upward, and the spring 320 sleeved on the telescopic shaft 310 will be compressed to store elastic potential energy. When the exchange door body 100 descends, the elastic potential energy is converted into the kinetic energy for the telescopic shaft 310 to reset.

[0026] In another embodiment, such as Figure 3 As shown, the upper end of the sealing plate 110 has protruding upper edges 111 on both sides, and the lower end of the sealing plate 110 has protruding lower edges 112 on both sides. The lower end face of the crossbeam 400 has a groove 410 that matches the sealing plate 110. When the exchange door body 100 is in the normal state, the upper edge 112 abuts against the lower edge of the groove 410. When the exchange door body 100 rises to its highest position, the upper end face of the lower edge 112 abuts against the lower side of the groove 410. The height of the groove 410 is slightly higher than the height of the sealing plate 110. When the exchange door body 100 rotates, it drives the rotating shaft 210 to rotate within the cavity formed by the shaft hole 111, the bushing fixing flange 220, the rotating bushing 230, and the bushing cover plate 240 of the sealing plate 110. The sealing plate 110 will not rotate with it, but will only rise or fall with the rotating shaft 210.

[0027] In another embodiment, such as Figure 2 As shown, the rotating shaft 210 is a stepped shaft, with its lower end located inside the bushing fixing flange 220 and its upper end located inside the rotating bushing 230. A rotating shaft copper ring 211 is provided between the step of the stepped shaft and the bushing fixing flange 220 to reduce the friction between the rotating shaft 210 and the bushing fixing flange 220. An oil nozzle 231 is also provided on the side wall of the rotating bushing 230 to add lubricating oil into the rotating cavity of the rotating shaft 210, further reducing friction during rotation.

[0028] In another embodiment, such as Figure 2As shown, a detection ring 311 is provided at the upper end of the telescopic shaft 310, and a proximity switch is provided on the crossbeam 400. The proximity switch detects whether the detection ring 311 has been raised to the correct position. After confirming that it has been raised to the correct position, the machine tool worktable begins to rotate 180°, completing the exchange between the preparation area and the machining area. A sealing ring 331 is provided between the upper end of the telescopic shaft 310 and the telescopic shaft flange 330 to prevent cutting fluid and other substances from entering the telescopic shaft assembly 300 and the rotary shaft assembly 200.

[0029] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0030] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A rotary exchange door for a horizontal machining center, characterized in that, The rotary exchange door of the horizontal machining center includes an exchange door body (100), a rotary shaft assembly (200) located at the middle of the upper end of the exchange door body (100), a telescopic shaft assembly (300) located above the rotary shaft assembly, and a crossbeam (400) located above the telescopic shaft assembly (300). The lower end of the exchange door body (100) is connected to the machine tool exchange worktable. A movable sealing plate (110) is provided at the upper end of the exchange door body (100), and a shaft hole for installing the rotary shaft assembly (200) is provided in the center of the movable sealing plate (110). The rotary shaft assembly (200) includes a rotating shaft (210), a bushing fixing flange (220), a rotating bushing (230), and a bushing cover plate (240). The bushing fixing flange (220) and the rotating bushing (230) are coaxially arranged with the shaft hole. The bushing fixing flange (220) is fixed to the upper end face of the movable sealing plate (110). The rotating bushing (230) is arranged on the upper side of the bushing fixing flange (220). The bushing cover plate (240) is fixedly connected to the upper end of the rotating bushing (230). The rotating shaft (210) is arranged in the cavity formed by the shaft hole, the bushing fixing flange (220), the rotating bushing (230), and the bushing cover plate (240). The lower end of the rotating shaft (210) is fixedly connected to the upper end face of the exchange door body (100). There is a gap between the sealing plate (110) and the upper end face of the exchange door body (100).

2. The rotary exchange door of a horizontal machining center according to claim 1, characterized in that, The telescopic shaft assembly (300) includes a telescopic shaft (310), a spring (320), and a telescopic shaft flange (330). The spring (320) is sleeved on the telescopic shaft (310), and the telescopic shaft flange (330) is fixed to the upper end face of the crossbeam (400). The lower end of the telescopic shaft (310) abuts against the bushing cover plate (240), and the upper end of the telescopic shaft (310) is located inside the telescopic shaft flange (330). The telescopic shaft (310) can move up and down inside the telescopic shaft flange (330).

3. The rotary exchange door of a horizontal machining center according to claim 1, characterized in that, The rotating shaft (210) is a stepped shaft, with the lower end of the stepped shaft located inside the bushing fixing flange (220) and the upper end of the stepped shaft located inside the rotating bushing (230).

4. A rotary exchange door for a horizontal machining center according to claim 3, characterized in that, A rotating shaft copper ring (211) is provided between the step of the stepped shaft and the bushing fixing flange (220).

5. A rotary exchange door for a horizontal machining center according to claim 3, characterized in that, The side wall of the rotating bushing (230) is provided with an oil nozzle (231).

6. A rotary exchange door for a horizontal machining center according to claim 2, characterized in that, The upper end of the telescopic shaft (310) is provided with a detection ring (311), and the crossbeam (400) is provided with a proximity switch. The proximity switch is used to detect whether the detection ring (311) has been raised to the correct position.

7. A rotary exchange door for a horizontal machining center according to claim 2, characterized in that, A sealing ring (331) is provided between the upper end of the telescopic shaft (310) and the telescopic shaft flange (330).

8. A rotary exchange door for a horizontal machining center according to claim 1, characterized in that, The upper end of the sealing plate (110) is provided with an extended upper edge (111) on both sides, and the lower end of the sealing plate (110) is provided with an extended lower edge (112) on both sides; the lower end face of the crossbeam (400) is provided with a groove (410) that matches the sealing plate (110); when the exchange door body (100) is in a normal state, the upper edge (112) abuts against the lower edge of the groove (410).

9. A rotary exchange door for a horizontal machining center according to claim 8, characterized in that, When the main body (100) of the exchange door rises to its highest position, the upper end face of the lower edge (112) abuts against the lower side of the groove (410).

10. A rotary exchange door for a horizontal machining center according to claim 8, characterized in that, The height of the groove (410) is slightly higher than the height of the sealing plate (110).

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