Rotary lift door mechanism and machine tool

Abstract

The utility model belongs to lathe field provides a kind of rotary lifting door mechanism and lathe, comprising: transmission assembly is movably arranged on lathe bed, transmission assembly includes lifting rod and water baffle, one end of lifting rod is hinged to lathe bed, and the other end is hinged to water baffle;Rotary assembly is connected to the bottom of door panel assembly, and rotary assembly includes first tray and second tray, and first tray and second tray can be staggered to rotate into lathe bed.Compared with prior art, the utility model has the advantages that lifting rod is rotated by door panel assembly, and stroke amplification is realized by using height difference design, to ensure that water baffle after synchronous lifting does not affect the space of free rotation of door panel main body, while ensuring that the machining environment in lathe is not affected, so that the first tray and the second tray after lifting pick up product and smoothly relative to lathe bed with door panel main body are transferred to appropriate position, to improve production rhythm and production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of machine tools, specifically relating to a rotating lifting door mechanism and a machine tool. Background Technology

[0002] In modern CNC machine tools and automated processing equipment, protective doors are widely used as important safety and protection components to prevent cutting fluid splashing, block metal chips, and ensure the safety of operators.

[0003] Traditional protective doors mostly adopt sliding or flip-top door structures. However, when faced with the alternating feeding and processing of multiple pallets (first pallet and second pallet), existing sliding and flip-top doors cannot adapt to the production cycle. At the same time, there will be certain positional interference or production cycle impact between the two, thus reducing production efficiency. In addition, during the movement of the door panel, the positional relationship between the water shield and the door panel is also crucial for the obstruction of liquids or other impurities. Existing structures are often prone to forming leakage paths, leading to coolant seepage or dust intrusion, affecting service life. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned problems in the existing technology by proposing a rotating lifting door mechanism and machine tool that is simple in structure, has good stability, and can achieve seamless connection and automatic coordination between the lifting and rotating actions of the door panel.

[0005] The objective of this utility model can be achieved by addressing the following technical problem: a rotating lifting door mechanism is proposed, comprising a machine tool bed, a transmission assembly, a rotating assembly, and a door panel assembly capable of reciprocating along the height direction of the machine tool bed, wherein:

[0006] The transmission assembly is movably mounted on the machine tool bed. The transmission assembly includes a lifting rod and a water shield. One end of the lifting rod is hinged to the machine tool bed, and the other end is hinged to the water shield.

[0007] The rotating assembly is connected to the bottom of the door panel assembly. The rotating assembly includes a first tray and a second tray, which can be rotated alternately into the machine tool bed.

[0008] The door panel assembly movably abuts against the lifting rod, and is used to drive the lifting rod to rotate, thereby moving the water shield relative to the machine tool bed; and there is a height difference between the contact end of the door panel assembly and the lifting rod and the hinge end of the lifting rod and the water shield, so that the lifting stroke of the water shield is greater than the lifting stroke of the door panel assembly, so that the door panel assembly rotates synchronously relative to the machine tool bed with the first tray and the second tray.

[0009] In the aforementioned rotating lifting door mechanism, the door panel assembly includes a door panel body and a receiving tube. The receiving tube is connected to the top of the door panel body and can move and rotate synchronously with the door panel body relative to the machine tool bed.

[0010] In the aforementioned rotating lifting door mechanism, the door panel assembly further includes a first driving member, and the rotating assembly further includes a second driving member. The first driving member is used to drive the door panel body to rise and fall; the second driving member is used to drive the first tray and the second tray to rotate alternately into the machine tool bed.

[0011] In the aforementioned rotating lifting door mechanism, the transmission assembly further includes a first limiting ring, which is connected to the outer wall of the receiving tube. A fixing block is connected to the lifting rod near its central position, and the first limiting ring movably abuts against the fixing block.

[0012] In the aforementioned rotating lifting door mechanism, a second limiting ring is formed on the outer wall of the receiving tube, and a limiting block is provided on the machine tool bed. The first limiting ring and the second limiting ring are located at the bottom and top of the limiting block, respectively, and move against the limiting block.

[0013] In the aforementioned rotating lifting door mechanism, the transmission assembly further includes:

[0014] A fixed plate is provided, wherein a protective cover plate is connected to the machine tool bed, and the fixed plate is connected to the inner wall of the protective cover plate;

[0015] A reinforcing plate is connected to the fixed plate, and the reinforcing plate is provided with a connecting pin, which is used to movably hinge the end of the lifting rod to the reinforcing plate;

[0016] A bent plate, one end of which is connected to the water shield and the other end of which is connected to the end of the lifting rod away from the reinforcing plate.

[0017] In the aforementioned rotating lifting door mechanism, the transmission assembly further includes a fixed frame and a swing rod. The fixed frame is connected to the inner wall of the protective cover plate, and one end of the swing rod is hinged to the fixed frame, while the other end is hinged to the water shield plate.

[0018] In the aforementioned rotating lifting door mechanism, the rotation radius of the first tray or the second tray relative to the machine tool bed is less than half the width of the door panel body.

[0019] In the aforementioned rotating lifting door mechanism, a waterproof pad is also provided between the door panel body and the machine tool bed.

[0020] The technical solution adopted by this utility model to solve its technical problem is to also propose a machine tool, including one of the above-mentioned rotating lifting door mechanisms.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) The present invention provides a rotating lifting door mechanism and machine tool. The lifting rod is driven to rotate by the door panel assembly, and the stroke is amplified by the height difference design. This ensures that the water shield after synchronous lifting will not affect the free rotation space of the door panel body, and at the same time ensures that the processing environment inside the machine tool is not affected. This allows the first and second pallets after lifting to pick up products and smoothly transfer them to the appropriate position relative to the machine tool bed along with the door panel body, thereby improving the production cycle and production efficiency.

[0023] (2) The first limiting ring and the second limiting ring form a two-way limiting structure, which can limit the door panel assembly from rising too high and causing interference, and prevent it from falling too low and affecting the sealing or structural alignment. This significantly improves the controllability and safety of the entire door panel movement process and extends the service life of the equipment.

[0024] (3) The swing rod and the fixed structure form an auxiliary linkage mechanism, which works together with the lifting rod to drive the water shield to move, so that the water shield maintains a horizontal posture or a predetermined trajectory during the lifting process, avoiding deflection or jamming caused by single-point force, improving the stability and synchronization of the water shield movement, and further enhancing the operational reliability of the waterproof sealing structure. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this application;

[0026] Figure 2 This is a schematic diagram of the installation structure between the receiving tube, the lifting rod, and the swing rod;

[0027] Figure 3 This is an exploded view of the area between the housing tube and the transmission assembly;

[0028] Figure 4 yes Figure 1 A bottom view.

[0029] In the diagram, 1 is the machine tool bed; 10 is the limit block; 11 is the protective cover; and 12 is the waterproof pad.

[0030] 2. Transmission assembly; 20. Lifting rod; 200. Fixing block; 21. Water shield; 22. Fixing plate; 23. Reinforcing plate; 230. Connecting pin; 24. Bending plate; 25. Fixing frame; 26. Swing rod;

[0031] 3. Rotating assembly; 30. First tray; 31. Second tray;

[0032] 4. Door panel assembly; 40. Door panel body; 41. Receiving tube; 410. First limiting ring; 411. Second limiting ring. Detailed Implementation

[0033] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0035] like Figure 1 As shown, this solution mainly describes a rotating lifting door mechanism used on a machine tool. However, this rotating lifting door mechanism is not limited to use on machine tools, but can also be applied to other rotating lifting door devices, such as milling machines.

[0036] like Figures 1 to 4 As shown, a rotating lifting door mechanism includes a machine tool bed 1, a transmission assembly 2, a rotating assembly 3, and a door panel assembly 4 that can reciprocate along the height direction of the machine tool bed 1.

[0037] The transmission assembly 2 is movably mounted on the machine bed 1. The transmission assembly 2 includes a lifting rod 20 and a water shield 21. One end of the lifting rod 20 is hinged to the machine bed 1, and the other end is hinged to the water shield 21. The rotating assembly 3 is connected to the bottom of the door panel assembly 4. The rotating assembly 3 includes a first tray 30 and a second tray 31. The first tray 30 and the second tray 31 can rotate alternately into the machine bed 1. The door panel assembly 4 movably abuts against the lifting rod 20, which drives the lifting rod 20 to rotate and move the water shield 21 relative to the machine bed 1. There is a height difference between the contact end of the door panel assembly 4 and the lifting rod 20 and the hinge end of the lifting rod 20 and the water shield 21, so that the lifting stroke of the water shield 21 is greater than the lifting stroke of the door panel assembly 4, so that the door panel assembly 4 can rotate synchronously relative to the machine bed 1 with the first tray 30 and the second tray 31.

[0038] It is worth noting that, since the products are usually held by clamps, the pallet needs to be lifted a certain distance to pick up the product, and then rotate relative to the machine bed 1 with the door panel assembly 4 to achieve the alternating operation of the first pallet 30 and the second pallet 31. Specifically, as follows... Figure 1The diagram shows that both the door panel assembly 4 and the water shield 21 are in the closed state to ensure the smoothness and stability of the workpiece processing within the machine tool. When the control system drives the door panel assembly 4 to lift along the height direction of the machine tool bed 1, the first tray 30 and the second tray 31 lift synchronously. At this time, the first tray 30, located outside the machine tool bed 1, completes the picking up of the workpiece to be processed, while the second tray 31, located inside the machine tool bed 1, completes the picking up of the processed product. During the lifting process of the door panel assembly 4, the door panel assembly 4 abuts against the middle of the lifting rod 20 to push the lifting rod 20 around its hinge point with the machine tool bed 1. Figure 2 Rotate counterclockwise (i.e.) Figure 3 (In the clockwise direction shown), due to the vertical height difference between the contact end of the door panel assembly 4 and the lifting rod 20 and the hinge end of the lifting rod 20 and the water shield 21, a lever amplification effect is formed. In addition, the lifting rod 20 is initially set at an angle (see reference). Figure 2 and Figure 3 The structure shown allows the door panel assembly 4 to achieve a relatively small upward displacement, which in turn drives the lifting rod 20 to drive the water shield 21 to achieve a large upward displacement. This ensures that the water shield 21 effectively blocks (cutting) fluid and prevents dust, while also providing sufficient space for the door panel assembly 4 to rotate subsequently. This prevents the position of the water shield 21 after lifting from affecting the normal rotation of the first tray 30 and the second tray 31. With the activation of the rotation mechanism, the first tray 30 and the second tray 31 can rotate 180° alternately. Therefore, this embodiment, by setting a linkage structure with a height difference, allows the door panel assembly 4 to drive the water shield 21 to complete a larger lifting motion with a smaller lift stroke, achieving decoupled control of the door panel opening and the movement of the waterproof sealing structure (water shield 21). Simultaneously, this structure also facilitates the synchronous rotation of the lifted door panel assembly 4 to adapt to the alternating operation of the two trays, improving the overall compactness and safety of the machine.

[0039] The door panel assembly 4 includes a door panel body 40 and a receiving tube 41. The receiving tube 41 is connected to the top of the door panel body 40 and can move and rotate synchronously with the door panel body 40 relative to the machine tool bed 1.

[0040] like Figure 2 and Figure 3As shown, in this embodiment, the receiving tube 41 is installed vertically at the top of the door panel body 40, and forms a hollow channel inside to facilitate the laying of machine tool cables, air lines, or data communication lines, etc. It provides a stable guiding and supporting path, avoiding the phenomenon of lines or pipes becoming entangled due to the rotation of the door panel body 40, ensuring the stability of the machine tool during processing, and extending its service life. It should be noted that in this embodiment, the receiving tube 41 and the door panel body 40 are installed in a detachable manner, which facilitates subsequent maintenance and replacement, while also ensuring the consistency of lifting and rotating movements, avoiding motion interference, and improving the reliability and service life of the mechanism.

[0041] The transmission assembly 2 also includes a first limiting ring 410, which is connected to the outer wall of the receiving tube 41. A fixing block 200 is connected to the lifting rod 20 near its middle position, and the first limiting ring 410 moves against the fixing block 200.

[0042] like Figure 2 and Figure 3 As shown, in this embodiment, the first limiting ring 410 can be integrally formed or press-fitted with the receiving tube 41 to achieve a fixed connection. When the door panel assembly 4 drives the door panel body 40 to move upward, the receiving tube 41 and the first limiting ring 410 rise synchronously, thereby pushing the fixing block 200 to make the entire lifting rod 20 move along... Figure 2 Rotating counterclockwise eventually causes the end water shield 21 to lift synchronously. It is worth noting that the first limiting ring 410 is designed as a ring structure in this embodiment. On the one hand, it can effectively prevent misalignment between the fixed block 200 and the first limiting ring 410 during the rotation of the lifting rod 20. On the other hand, it can adapt to the subsequent synchronous rotation of the door panel body 40 (together with the receiving tube 41) with the first tray 30 and the second tray 31, ensuring the safety and stability of the entire transmission process.

[0043] The outer wall of the receiving tube 41 is also formed with a second limiting ring 411. The machine tool bed 1 is provided with a limiting block 10. The first limiting ring 410 and the second limiting ring 411 are located at the bottom and top of the limiting block 10, respectively, and move against the limiting block 10.

[0044] like Figure 2 and Figure 3As shown, this embodiment forms a bidirectional limiting structure by setting a first limiting ring 410 and a second limiting ring 411 on the upper and lower sides of the limiting block 10, respectively. This can limit the door panel assembly 4 from rising too high and causing interference, and also prevent it from falling too low and affecting the sealing or structural alignment. Compared with the method of controlling the position by relying solely on the motor encoder or sensor, the mechanical limit is not affected by signal delay, control error or power failure, ensuring that the end position height of each opening and closing action is consistent. This significantly improves the repeatability and controllability and safety of the entire door panel movement process, and extends the service life of the equipment.

[0045] The transmission assembly 2 also includes: a fixed plate 22, on which a protective cover plate 11 is connected, and the fixed plate 22 is connected to the inner wall of the protective cover plate 11; a reinforcing plate 23, which is connected to the fixed plate 22, and the reinforcing plate 23 is provided with a connecting pin 230, which is used to movably hinge the end of the lifting rod 20 to the reinforcing plate 23; and a bending plate 24, one end of which is connected to the water shield plate 21, and the other end of which is connected to the end of the lifting rod 20 away from the reinforcing plate 23.

[0046] like Figures 1 to 3 As shown, in this embodiment, the fixed plate 22 and the reinforcing plate 23 together form a stable hinge support, which enhances the structural strength of the rotation fulcrum of the lifting rod 20 and prevents deformation or loosening under long-term load. The bending plate 24 efficiently transmits the output motion of the lifting rod 20 to the water shield 21, realizing torque amplification and stroke conversion, ensuring that the water shield 21 opens quickly and smoothly. The overall structure is reasonably laid out, with high space utilization, improving transmission efficiency and system stability.

[0047] The transmission assembly 2 also includes a fixed frame 25 and a swing rod 26. The fixed frame 25 is connected to the inner wall of the protective cover plate 11, and one end of the swing rod 26 is hinged to the fixed frame 25 and the other end is hinged to the water shield plate 21.

[0048] like Figure 2 As shown, the swing rod 26 and the fixed frame 25 constitute an auxiliary linkage mechanism, which works together with the lifting rod 20 to drive the water shield 21 to move, so that the water shield 21 maintains a horizontal posture or a predetermined trajectory during the lifting process, avoiding deflection or jamming caused by single-point force; this dual-rod linkage design improves the stability and synchronization of the movement of the water shield 21, and further enhances the operational reliability of the waterproof sealing structure.

[0049] The radius of rotation of the first tray 30 or the second tray 31 relative to the machine tool bed 1 (i.e., Figure 4 The R shown is less than half the width of the door panel body (i.e., Figure 4 The L shown.

[0050] like Figure 4As shown in the present embodiment, the rotation radius of the pallets is controlled to be within half of the width of the door panel main body 40, that is, R<L / 2. The rotation trajectory of the pallets is strictly limited within the width range of the door panel main body 40, and does not extend to the left and right sides of the machine tool during rotation. This means that no extra lateral movement space needs to be reserved when the door body is opened and stored, which is particularly suitable for narrow workstations, high-density automated production lines or machine tool groups arranged side by side, significantly improving the flexibility of equipment layout and enhancing the operational safety of the machine tool.

[0051] Preferably, in this embodiment, a waterproof gasket 12 is further provided between the door panel main body 40 and the machine tool bed 1. The design of the waterproof gasket 12 effectively fills the gap between the door panel main body 40 and the machine tool bed 1, forms a reliable sealing barrier when the door panel is in a closed state, prevents cutting fluid, coolant or dust from entering the interior of the machine tool, protects precision components and prolongs the service life of the equipment; meanwhile, it improves the cleanliness of the working environment and operational safety.

[0052] The door panel assembly 4 further comprises a first driving member, and the rotating assembly 3 further comprises a second driving member. The first driving member is configured to drive the door panel main body 40 to lift and lower; the second driving member is configured to drive the first pallet 30 and the second pallet 31 to staggeredly rotate into the machine tool bed 1.

[0053] In this embodiment, by independently configuring the first driving member (not shown in the figure) and the second driving member (not shown in the figure), step-by-step precise control of the two actions of door panel lifting and pallet rotation is realized, which improves the degree of automation and control flexibility; each driving member operates independently without interfering with each other, and the action sequence can be set as required to ensure motion safety, prevent jamming or collision, is suitable for high-takt processing scenarios, and improves the overall operation efficiency of the machine tool.

[0054] It should be noted that during the lifting process of the door panel main body 40, the second driving member performs the lifting movement synchronously together with the two pallets. Similarly, during the rotation process of the two pallets, the door panel main body 40 performs the rotating movement synchronously together with the first driving member. In addition, the first driving member and the second driving member in this embodiment can be replaced by other driving modes such as hydraulic driving and pneumatic driving. After the working positions of the first pallet 30 and the second pallet 31 are alternated, the positions of the two pallets can be exchanged again through the reverse rotation operation of the second driving member.

[0055] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0057] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A rotating lifting door mechanism, characterized in that, It includes a machine tool bed, a transmission assembly, a rotary assembly, and a door panel assembly that can reciprocate along the height direction of the machine tool bed, wherein: The transmission assembly is movably mounted on the machine tool bed. The transmission assembly includes a lifting rod and a water shield. One end of the lifting rod is hinged to the machine tool bed, and the other end is hinged to the water shield. The rotating assembly is connected to the bottom of the door panel assembly. The rotating assembly includes a first tray and a second tray, which can be rotated alternately into the machine tool bed. The door panel assembly movably abuts against the lifting rod, and is used to drive the lifting rod to rotate, thereby moving the water shield relative to the machine tool bed; and there is a height difference between the contact end of the door panel assembly and the lifting rod and the hinge end of the lifting rod and the water shield, so that the lifting stroke of the water shield is greater than the lifting stroke of the door panel assembly, so that the door panel assembly rotates synchronously relative to the machine tool bed with the first tray and the second tray.

2. The rotating lifting door mechanism according to claim 1, characterized in that, The door panel assembly includes a door panel body and a receiving tube. The receiving tube is connected to the top of the door panel body and can move and rotate synchronously with the door panel body relative to the machine tool bed.

3. A rotating lifting door mechanism according to claim 2, characterized in that, The door panel assembly further includes a first driving member, and the rotating assembly further includes a second driving member. The first driving member is used to drive the door panel body to rise and fall; the second driving member is used to drive the first tray and the second tray to rotate alternately into the machine tool bed.

4. A rotating lifting door mechanism according to claim 2, characterized in that, The transmission assembly also includes a first limiting ring, which is connected to the outer wall of the receiving tube. A fixing block is connected to the lifting rod near its middle position, and the first limiting ring moves against the fixing block.

5. A rotating lifting door mechanism according to claim 4, characterized in that, The outer wall of the receiving tube is also formed with a second limiting ring, and the machine tool bed is provided with a limiting block. The first limiting ring and the second limiting ring are located at the bottom end and the top end of the limiting block, respectively, and move against the limiting block.

6. A rotating lifting door mechanism according to claim 2, characterized in that, The transmission assembly also includes: A fixed plate is provided, wherein a protective cover plate is connected to the machine tool bed, and the fixed plate is connected to the inner wall of the protective cover plate; A reinforcing plate is connected to the fixed plate, and the reinforcing plate is provided with a connecting pin, which is used to movably hinge the end of the lifting rod to the reinforcing plate; A bent plate, one end of which is connected to the water shield and the other end of which is connected to the end of the lifting rod away from the reinforcing plate.

7. A rotating lifting door mechanism according to claim 6, characterized in that, The transmission assembly also includes a fixed frame and a swing rod. The fixed frame is connected to the inner wall of the protective cover plate, and one end of the swing rod is hinged to the fixed frame and the other end is hinged to the water shield plate.

8. A rotating lifting door mechanism according to claim 2, characterized in that, The rotation radius of the first pallet or the second pallet relative to the machine tool bed is less than half the width of the door panel body.

9. A rotating lifting door mechanism according to claim 2, characterized in that, A waterproof pad is also provided between the main body of the door panel and the machine tool bed.

10. A machine tool, characterized in that, Includes a rotating lifting door mechanism as described in any one of claims 1-9.

Images