A machine tool telescopic protective canopy
The machine tool telescopic protective canopy, which uses belt drive or chain drive, utilizes a motor-driven drive pulley or sprocket to solve the problem of small protection range in existing technologies and achieves a longer protection effect.
Patent Information
- Application Number
- CN202522329996.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-03
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-03
AI Technical Summary
Existing telescopic protective canopies for machine tools use cylinders or lead screws to drive telescopic movement, which has a limited stroke and is difficult to adapt to long telescopic extension and retraction, resulting in a small protection range for machine tools.
Machine tool telescopic protective canopies using belt drive or chain drive extend and retract through a motor-driven drive pulley or drive sprocket, which in turn drives a synchronous belt or chain to expand the protective area.
It achieves a longer range of protective canopy extension, expanding the protection range of machine tools. The structure is simple and stable, and has wider applicability.
Smart Images
Figure CN224927560U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machine tool technology, and more specifically, to a telescopic protective canopy for machine tools. Background Technology
[0002] The machine tool telescopic protective canopy is compatible with equipment including ordinary machine tools, CNC machine tools, and CNC machining centers (vertical / horizontal). It is mainly used to prevent chips and coolant from entering the guide rails and affecting accuracy. It can cover various guide rail types such as horizontal, vertical, inclined, and transverse, while protecting operators from injury from high-speed moving parts and splashes.
[0003] Currently, telescopic protective canopies are usually installed on top of machine tools and are extended or retracted by cylinders or lead screws to protect the machine tool components. However, most existing telescopic protective canopies have limited travel due to the use of cylinders or lead screws for extension and retraction, making it difficult to adapt to longer extension and retraction, and resulting in a small protection range for the machine tool. Utility Model Content
[0004] 1. Technical problems to be solved In view of the problems existing in the prior art, the purpose of this utility model is to provide a telescopic protective canopy for machine tools, which aims to solve the problem that the telescopic protective canopy in the prior art uses cylinders or lead screws to drive the telescopic movement with limited stroke, making it difficult to adapt to long telescopic extension and contraction of the protective canopy, and resulting in a small protection range for machine tools.
[0005] 2. Technical Solution To solve the above problems, the present invention adopts the following technical solution: A telescopic protective canopy for machine tools includes two mounting beams symmetrically arranged. A fixed rod is fixedly connected between the two mounting beams. A set of movable wheels and multiple sets of follower wheels are slidably connected to the top ends of the two mounting beams, with each set of movable wheels consisting of two wheels. A movable rod is fixedly connected between the two movable wheels in each set, and a follower rod is fixedly connected between the two follower wheels in each set. Multiple follower rods are located between the fixed rod and the movable rod. A canopy is fixedly connected between the fixed rod, the movable rod, and the multiple follower rods. Each end of each mounting beam is fixedly connected to... The system comprises a front fixed housing and a rear fixed housing. A connecting rod is rotatably connected between the two front fixed housings, and both ends of the connecting rod movably extend into the two front fixed housings. A drive pulley is rotatably connected inside each of the two front fixed housings, and both ends of the connecting rod are fixedly connected to the adjacent ends of the two drive pulleys. A driven pulley is rotatably connected inside each of the two rear fixed housings. A synchronous belt is drivingly connected between the two driven pulleys and the two drive pulleys, and the two synchronous belts movably extend through the two mounting beams. A set of two movable wheels movably extend through the two mounting beams and are fixedly connected to the two synchronous belts.
[0006] As a preferred embodiment of this utility model, each of the two front fixed shells is rotatably connected to a drive sprocket, and the two ends of the connecting rod are respectively fixedly connected to the close ends of the two drive sprockets. Each of the two rear fixed shells is rotatably connected to a driven sprocket. The two driven sprockets are respectively connected to the two drive sprockets by chains, and the two chains respectively move through the two mounting beams. A set of two movable wheels respectively move through the two mounting beams and are fixedly connected to the two chains.
[0007] As a preferred embodiment of this utility model, each of the two mounting beams has a transmission cavity, and the two synchronous belts or two chains are respectively located in the two transmission cavities. The top of each of the two mounting beams is provided with a guide part, and a set of two moving wheels and each set of two follower wheels are slidably connected to the two guide parts.
[0008] As a preferred embodiment of this utility model, each of the two mounting beams is provided with a through opening, and the two through openings are respectively connected to the two transmission cavities. A set of two moving wheels are respectively connected to the two synchronous belts or two chains through the two through openings.
[0009] As a preferred embodiment of this utility model, both mounting beams are provided with mounting slots.
[0010] As a preferred embodiment of this utility model, the canopy is composed of multiple "W"-shaped or multiple "U"-shaped folding pieces, and the multiple folding pieces are fixedly connected at equal intervals between the fixed rod, multiple follower wheels and the moving rod.
[0011] 3. Beneficial Effects Compared with existing technologies, the advantages of this utility model are: (1) In this scheme, two mounting beams are installed on the top of the machine tool. The components inside the machine tool are protected by controlling the extension and retraction of the canopy. During the protection process, only one drive pulley or one drive sprocket needs to be rotated by the motor. The drive pulley, driven pulley and synchronous belt are connected by belt drive, and the drive pulley, driven pulley and synchronous belt are connected by chain drive. The motor drive will cause the two synchronous belts or two chains to drive the extension and retraction of the canopy to protect the machine tool components. The telescopic protective canopy uses either belt drive or chain drive to drive the extension and retraction of the canopy to protect the machine tool. Both transmission methods are not only simple in structure and can stably drive the extension and retraction of the protective canopy, but also both belt drive and chain drive can perform long stroke movements. Compared with cylinder and screw drive for the extension and retraction of the protective canopy, belt drive and chain drive drive the extension and retraction of the protective canopy to have a larger protection range and a wider range of applicability to the machine tool. Attached Figure Description
[0012] Figure 1 This is the front view of the present invention; Figure 2 This is a perspective view of the present utility model; Figure 3 This is a structural diagram of the roof in this utility model; Figure 4 This is an internal structural diagram of Embodiment 1 of this utility model; Figure 5 This is a cross-sectional view of Embodiment 1 of this utility model; Figure 6 In this utility model Figure 5 Enlarged view of point A; Figure 7 This is an internal structural diagram of Embodiment 2 of this utility model; Figure 8 This is a cross-sectional view of Embodiment 2 of this utility model; Figure 9 In this utility model Figure 8 Enlarged view of point B.
[0013] Explanation of the labels in the diagram: 1. Mounting beam; 101. Transmission cavity; 102. Guide section; 103. Through opening; 104. Mounting slot; 2. Fixed rod; 3. Moving wheel; 4. Follower wheel; 5. Moving rod; 6. Follower rod; 7. Canopy; 8. Front fixed shell; 9. Rear fixed shell; 10. Linkage rod; 11a. Drive pulley; 11b. Drive sprocket; 12a. Driven pulley; 12b. Driven sprocket; 13a. Synchronous belt; 13b. Chain. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0015] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0017] Example 1: Please see Figure 1-5 A telescopic protective canopy for machine tools includes two mounting beams 1 arranged symmetrically. A fixed rod 2 is fixedly connected between the two mounting beams 1. A set of movable wheels 3 and multiple sets of follower wheels 4 are slidably connected to the top ends of the two mounting beams 1, with each set of movable wheels 3 and each set of follower wheels 4 consisting of two wheels. A movable rod 5 is fixedly connected between the two movable wheels 3 in each set, and a follower rod 6 is fixedly connected between the two follower wheels 4 in each set. Multiple follower rods 6 are located between the fixed rod 2 and the movable rod 5. A canopy 7 is fixedly connected between the fixed rod 2, the movable rod 5, and the multiple follower rods 6. A front fixed shell 8 and a rear fixed shell 9 are fixedly connected to both ends of each mounting beam 1, respectively. A connecting rod 10 is rotatably connected between the two front fixed housings 8, and both ends of the connecting rod 10 are movably inserted into the two front fixed housings 8. A drive pulley 11a is rotatably connected to each of the two front fixed housings 8, and both ends of the connecting rod 10 are fixedly connected to the adjacent ends of the two drive pulleys 11a. A driven pulley 12a is rotatably connected to each of the two rear fixed housings 9. A synchronous belt 13a is drivingly connected between the two driven pulleys 12a and the two drive pulleys 11a, and the two synchronous belts 13a are movably inserted through the two mounting beams 1. A set of two movable wheels 3 are movably inserted through the two mounting beams 1 and fixedly connected to the two synchronous belts 13a.
[0018] In this embodiment, two mounting beams 1 are installed on the top of the machine tool, so that the canopy 7 corresponds to the components inside the machine tool. The moving rod 5 slides on the two mounting beams 1 through a set of moving wheels 3. One end of the canopy 7 is connected to the fixed rod 2 and is always in a fixed state. One end of a drive pulley 11a is connected to a motor, which drives the two synchronous belts 13a to move the moving rod 5 through a set of moving wheels 3. The two synchronous belts 13a have a long stroke. Through transmission between the two drive pulleys 11a and the two driven pulleys 12a, the moving rod 5 can move the canopy 7 a long distance, which improves the protection range of the machine tool. During the extension and retraction of the canopy 7, multiple follower rods 6 cooperate with multiple sets of follower wheels 4 to assist the movement of the canopy 7, so that the extension and retraction of the canopy 7 remains stable. When the protective canopy needs to be extended and retracted on the machine tool, a motor drives an active pulley 11a. Two active pulleys 11a rotate simultaneously in the two front fixed housings 8 via a connecting rod 10. During the rotation of the two active pulleys 11a, they cooperate with the driven pulleys 12a to drive the two synchronous belts 13a. The two synchronous belts 13a drive a set of two moving wheels 3 to move synchronously. The set of moving wheels 3 drives the moving rod 5 to move. The moving rod 5 drives one end of the canopy 7 to move. The canopy 7 extends and retracts smoothly between the two mounting beams 1 through multiple follower rods 6 and multiple sets of follower wheels 4, thereby achieving protection for the machine tool components.
[0019] Example 2: Please see Figure 6-8 A retractable protective canopy for machine tools includes two mounting beams 1 arranged symmetrically. A fixed rod 2 is fixedly connected between the two mounting beams 1. A set of movable wheels 3 and multiple sets of follower wheels 4 are slidably connected to the top of the two mounting beams 1, with each set of movable wheels 3 and each set of follower wheels 4 consisting of two wheels. A movable rod 5 is fixedly connected between the two movable wheels 3 in each set, and a follower rod 6 is fixedly connected between the two follower wheels 4 in each set. Multiple follower rods 6 are located between the fixed rod 2 and the movable rod 5. A canopy 7 is fixedly connected between the fixed rod 2, the movable rod 5, and the multiple follower rods 6. A front fixed shell 8 and a rear fixed shell 8 are fixedly connected to both ends of each mounting beam 1, respectively. A connecting rod 10 is rotatably connected between the two front fixed shells 8, and both ends of the connecting rod 10 movably pass through the two front fixed shells 8. A drive sprocket 11b is rotatably connected to each of the two front fixed shells 8, and both ends of the connecting rod 10 are fixedly connected to the adjacent ends of the two drive sprockets 11b. A driven sprocket 12b is rotatably connected to each of the two rear fixed shells 9. A chain 13b is drivingly connected between the two driven sprockets 12b and the two drive sprockets 11b, and the two chains 13b movably pass through the two mounting beams 1. A set of two movable wheels 3 movably pass through the two mounting beams 1 and are fixedly connected to the two chains 13b.
[0020] In this embodiment, two mounting beams 1 are installed on the top of the machine tool, so that the canopy 7 corresponds to the components inside the machine tool. The moving rod 5 slides on the two mounting beams 1 through a set of moving wheels 3. One end of the canopy 7 is connected to the fixed rod 2 and is always in a fixed state. One end of a drive sprocket 11b is connected to a motor and driven by the motor, so that two chains 13b mesh and transmit between the two drive sprockets 11b and the two driven sprockets 12b. The two chains 13b can transmit over a long distance. During the transmission, the moving rod 5 is moved by a set of moving wheels 3, so that the canopy 7 can extend and retract over a long distance to protect the machine tool. During the extension and retraction of the canopy 7, multiple follower rods 6 cooperate with multiple sets of follower wheels 4 to assist the extension and retraction of the canopy 7, so that the extension and retraction of the canopy 7 remains stable. When the protective canopy needs to be extended and retracted on the machine tool, a motor drives a drive sprocket 11b. Two drive sprockets 11b rotate simultaneously in two front fixed housings 8 via a connecting rod 10. During the rotation of the two drive sprockets 11b, they cooperate with the driven sprocket 12b to drive two chains 13b for meshing transmission. Two synchronous belts 13a drive a set of two moving wheels 3 to move synchronously. A set of moving wheels 3 drives a moving rod 5 to move. The moving rod 5 drives one end of the canopy 7 to move. The canopy 7 slides and extends and retracts between two mounting beams 1 via multiple follower rods 6 and multiple sets of follower wheels 4, thereby achieving protection for the machine tool components.
[0021] In any of the above embodiments, it should be noted that: For details, please refer to Figure 4-8 Both mounting beams 1 have a transmission cavity 101, and two synchronous belts 13a or two chains 13b are located in the two transmission cavities 101 respectively. The top of both mounting beams 1 is provided with a guide part 102, and a set of two moving wheels 3 and a set of two follower wheels 4 are slidably connected to the two guide parts 102 respectively.
[0022] The two transmission chambers 101 are used to accommodate two synchronous belts 13a or two chains 13b, so that the two synchronous belts 13a or two chains 13b have sufficient space to circulate and drive the protective canopy to extend and retract. The two guide parts 102 are respectively set on the top of the two mounting beams 1 and respectively contact a set of moving wheels 3 and multiple sets of follower wheels 4, ensuring the stability of the canopy 7 as it slides on the two mounting beams 1.
[0023] For details, please refer to Figure 4-8 Both mounting beams 1 have through openings 103, and the two through openings 103 are respectively connected to the two transmission chambers 101. A set of two moving wheels 3 are respectively connected to the two synchronous belts 13a or the two chains 13b through the two through openings 103.
[0024] The two through-holes 103 facilitate the connection of a set of two movable wheels 3 to two synchronous belts 13a or two chains 13b, so that when the two synchronous belts 13a or two chains 13b drive the set of two movable wheels 3, they can move without obstruction and maintain smooth movement.
[0025] For details, please refer to Figure 4-8 Both mounting beams 1 have mounting slots 104.
[0026] The two mounting beams 1 are bolted to the top of the machine tool. The two mounting slots 104 conceal the ends of the bolts when they pass through the two mounting beams 1, preventing the bolt ends from protruding and scratching the workers or affecting the appearance.
[0027] For details, please refer to Figure 1-2 The canopy 7 is composed of multiple "W"-shaped or multiple "U"-shaped folded pieces, and the multiple folded pieces are fixedly connected at equal intervals between the fixed rod 2, multiple follower wheels 4 and the moving rod 5.
[0028] The canopy 7 uses a combination of multiple "W"-shaped or multiple "U"-shaped folding pieces, which has a good folding effect and is convenient for extension and retraction. Moreover, when the canopy 7 is damaged, only the corresponding folding piece needs to be replaced, which effectively saves costs. In addition, multiple "U"-shaped folding pieces are suitable for machine tools with slower operating speeds.
[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.
Claims
1. A telescopic protective canopy for machine tools, comprising two mounting beams (1), characterized in that: Two mounting beams (1) are symmetrically arranged, and a fixed rod (2) is fixedly connected between the two mounting beams (1). A set of movable wheels (3) and multiple sets of follower wheels (4) are slidably connected to the top of the two mounting beams (1). Each set of movable wheels (3) and each set of follower wheels (4) consists of two wheels. A movable rod (5) is fixedly connected between the two movable wheels (3) in one set. A follower rod (6) is fixedly connected between the two follower wheels (4) in each set. Multiple follower rods (6) are located between the fixed rod (2) and the movable rod (5). A canopy (7) is fixedly connected between the fixed rod (2), the movable rod (5), and the multiple follower rods (6). A front fixed shell (8) and a rear fixed shell (9) are fixedly connected to both ends of each mounting beam (1). A connecting rod (10) is rotatably connected between the two front fixed shells (8), and the two ends of the connecting rod (10) respectively move through the two front fixed shells (8). A driving pulley (11a) is rotatably connected in both front fixed shells (8), and the two ends of the connecting rod (10) are respectively fixedly connected to the two driving pulleys (11a) at the close end. A driven pulley (12a) is rotatably connected in both rear fixed shells (9). A synchronous belt (13a) is connected between the two driven pulleys (12a) and the two driving pulleys (11a), respectively. The two synchronous belts (13a) move through the two mounting beams (1), respectively. A set of two moving wheels (3) move through the two mounting beams (1) and are fixedly connected to the two synchronous belts (13a).
2. The machine tool telescopic protective shed according to claim 1, characterized in that: Both of the front fixed shells (8) are rotatably connected to drive sprockets (11b), and the two ends of the connecting rod (10) are respectively fixedly connected to the two drive sprockets (11b) at their closest ends. Both of the rear fixed shells (9) are rotatably connected to driven sprockets (12b). The two driven sprockets (12b) are respectively connected to the two drive sprockets (11b) by chains (13b), and the two chains (13b) respectively move through the two mounting beams (1). A set of two moving wheels (3) respectively move through the two mounting beams (1) and are fixedly connected to the two chains (13b).
3. The machine tool telescopic protective shed according to claim 2, characterized in that: Both of the mounting beams (1) have a transmission cavity (101) and two synchronous belts (13a) or two chains (13b) are located in the two transmission cavities (101) respectively. The top of both mounting beams (1) is provided with a guide part (102) and a set of two moving wheels (3) and a set of two follower wheels (4) are slidably connected to the two guide parts (102) respectively.
4. The machine tool telescopic protective shed according to claim 3, characterized in that: Both of the mounting beams (1) have through openings (103), and the two through openings (103) are connected to the two transmission chambers (101) respectively. A set of two moving wheels (3) pass through the two through openings (103) and are fixedly connected to the two synchronous belts (13a) or the two chains (13b).
5. A telescopic protective shed for machine tools according to claim 4, characterized in that: Both of the mounting beams (1) are provided with mounting slots (104).
6. A telescopic protective shed for machine tools according to claim 5, characterized in that: The canopy (7) is composed of multiple "W"-shaped or multiple "U"-shaped folded pieces, and the multiple folded pieces are fixedly connected at equal intervals between the fixed rod (2), multiple follower wheels (4) and the moving rod (5).