Chain wheel type driving tool changing door structure
By introducing an oiling assembly, a recovery assembly, and a guiding mechanism into the sprocket-type tool changer structure, the wear problem caused by lubricating oil drying is solved, automated lubrication and lubricating oil recovery are achieved, and the stability and lifespan of the equipment are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-31
- Publication Date
- 2026-03-27
AI Technical Summary
The existing sprocket-type tool changer structure suffers from increased wear due to lubricant drying out during long-term use, and lubrication is difficult, affecting the service life of the chain and sprocket, requiring external tools to solve the problem.
A sprocket-driven tool changer structure was designed, comprising an oiling component, a recovery component, and a guiding mechanism. A servo motor drives a gear to spray lubricating oil from a nozzle, and the recovery component recovers excess lubricating oil. The guiding mechanism ensures stable movement.
It achieves automated lubrication and lubricant recycling, reducing the environmental pollution caused by lubricant and improving the service life and stability of chains and sprockets.
Smart Images

Figure CN121733332A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of tool changer technology, specifically a chain-driven tool changer structure. Background Technology
[0002] During the use of equipment such as horizontal machining centers, it is necessary to change the cutting tools to adapt to different machining needs. In order to avoid the cutting tools being contaminated by the machining environment, the cutting tools are usually isolated in a separate space through the tool changing door to ensure the effective storage of the cutting tools.
[0003] Some existing tool changers on the market are typically driven by sprockets, which can withstand frequent starts and stops and high-speed movements, making them suitable for large machine tools or high-load scenarios that require frequent tool changes. However, the lubricating oil applied to the surface of the chain and sprocket will gradually dry out during long-term use, which will increase the wear between the chain and sprocket. Due to the space limitations of the tool changer structure, lubrication may be difficult, which can easily lead to untimely lubrication and reduce the service life of the chain and sprocket.
[0004] Combining the above issues, we find that the existing tool changer structures on the market are difficult to avoid all the problems mentioned above when in use. Even if they can be solved, they require the use of external tools, which makes it impossible to achieve the desired effect. Therefore, we propose a sprocket-driven tool changer structure. Summary of the Invention
[0005] The purpose of this invention is to provide a chain-driven tool changer structure to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: A sprocket-driven tool changer structure includes a tool changer assembly. The tool changer assembly includes a frame. A driven wheel housing and a driven wheel housing are fixedly connected to the top of the frame. A servo motor is installed on one side of the driven wheel housing. A transmission sprocket is installed on one side of both the driven wheel housing and the driven wheel housing. A positioning key is installed in the inner cavity of the transmission sprocket. A chain is meshed with the surfaces of both transmission sprockets. A connecting block is fixedly connected to the surface of the chain. A main body is fixedly connected to the surface of the connecting block. A lubrication mechanism is installed on the surface of the frame. The lubrication mechanism includes an oiling assembly, which is disposed on the top of the frame and is used to lubricate the surface of the chain. The lubrication mechanism also includes a recovery component, which is disposed on one side of the oiling component and is used to recover excess lubricating oil. The surface of the frame is equipped with a guide mechanism for guiding the movement of the main body.
[0007] Preferably, the oiling assembly includes a fixed base, one side of which is fixedly connected to the surface of the frame. A drive motor is fixedly connected to the inner cavity of the fixed base, and a gear is fixedly connected to the output end of the drive motor. A first toothed plate is meshed with the surface of the gear, a support frame is fixedly connected to the surface of the first toothed plate, and an oil storage box is fixedly connected to the surface of the support frame. An oil inlet is connected to the top of the oil storage box, and an oil delivery seat is connected to the bottom of the oil storage box. A nozzle is connected to the inner cavity of the oil delivery seat.
[0008] Preferably, a guide rod is slidably connected to the inner cavity of the support frame, and one end of the guide rod is fixedly connected to the surface of the frame.
[0009] Preferably, a limiting plate is fixedly connected to the other end of the guide rod, and one side of the limiting plate is in contact with the surface of the support frame.
[0010] Preferably, the recycling assembly includes a support plate, one side of which is fixedly connected to the surface of the frame, a second toothed plate is slidably connected to the top of the support plate, one side of which is meshed with the surface of a gear, and a recycling box is fixedly connected to one side of the second toothed plate. The recycling box and the oil supply seat are at the same vertical position.
[0011] Preferably, a diversion plate is fixedly connected to the inner cavity of the recycling box, the diversion plate is inclined as a whole, and the diversion plate is made of silicone.
[0012] Preferably, the inner cavity of the second toothed plate is provided with a movable groove, and the inner cavity of the movable groove is slidably connected to the surfaces of the support frame and the first toothed plate, respectively.
[0013] Preferably, the surface of the second toothed plate is provided with a movable groove, and a connecting plate is slidably connected to the inner cavity of the movable groove. One side of the connecting plate is fixedly connected to the surface of the support plate.
[0014] Preferably, a positioning rod is fixedly connected to the inner cavity of the movable groove, and the surface of the positioning rod is slidably connected to the inner cavity of the connecting plate.
[0015] Preferably, the guiding mechanism includes a fixed bracket, a guide seat, a sensing plate, and a second slider. The surfaces of the fixed bracket and the guide seat are fixedly connected to one side of the frame. One side of the sensing plate is fixedly connected to the surface of the main body. The surface of the second slider is slidably connected to the inner cavity of the main body. An inductive switch is fixedly connected to the inner cavity of the fixed bracket. The inductive switch works in conjunction with the sensing plate. A guide groove is formed in the inner cavity of the guide seat. A first slider is slidably connected to the inner cavity of the guide groove. One side of the first slider is fixedly connected to the surface of the main body. One side of the second slider is fixedly connected to the surface of the frame. Both the first slider and the second slider are made of nylon.
[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, by setting up an oiling assembly, uses a drive motor to rotate a gear, which in turn moves a first toothed plate, which in turn moves a support frame, which in turn moves an oil storage box, which in turn moves an oil delivery seat, which is then moved to one side of the chain. Finally, a nozzle sprays the lubricating oil from inside the oil storage box onto the surface of the chain, thus completing the lubrication and maintenance of the chain surface.
[0017] 2. This invention, by setting up a recycling component, uses the rotation of gears to synchronously drive the second toothed plate to move, and the movement of the second toothed plate to drive the recycling box to move. This allows the recycling box to be moved synchronously to the bottom of the oil supply seat. Thus, when the nozzle sprays oil to lubricate the chain surface, the lubricating oil that is not attached to the chain surface can be recycled, preventing this part of the lubricating oil from adhering to the surface of other parts and reducing pollution to the surrounding environment.
[0018] 3. This invention provides a guiding mechanism that guides the movement of the main body via a first slider and a second slider, ensuring that the main body moves horizontally and improving stability during movement. The inductive switch detects the position of the inductive sheet fixed on the surface of the main body, thus ensuring that the main body reaches the designated position during movement and determining whether the main body is switched on or off. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the drive motor of the present invention; Figure 3 This is a schematic diagram of the support frame of the present invention; Figure 4 This is a schematic diagram of the support plate of the present invention; Figure 5 This is a schematic diagram of the framework of the present invention; Figure 6 This is a partial connection diagram of the framework of the present invention; Figure 7 This is a side view of the framework of the present invention; Figure 8 This is a rear view of the framework of the present invention.
[0020] In the diagram: 1. Tool changer assembly; 11. Frame; 12. Main body; 13. Driven wheel housing; 14. Drive wheel housing; 15. Transmission sprocket; 16. Chain; 17. Servo motor; 18. Positioning key; 19. Connecting block; 2. Lubrication mechanism; 21. Oil supply assembly; 2101. Support frame; 2102. Guide rod; 2103. Limiting plate; 2104. Oil inlet; 2105. Oil reservoir; 2106. Oil supply seat; 2107. Nozzle; 2108. Fixing base; 210 9. Drive motor; 2110. First toothed plate; 2111. Gear; 22. Recycling assembly; 2201. Recycling box; 2202. Diversion plate; 2203. Support plate; 2204. Second toothed plate; 2205. Connecting plate; 2206. Moving slot; 2207. Positioning rod; 2208. Movable slot; 3. Guide mechanism; 31. Fixed bracket; 32. Guide seat; 33. Guide slot; 34. Inductive switch; 35. Inductive plate; 36. First slider; 37. Second slider. Detailed Implementation
[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0022] Example 1: Please refer to Figures 1-8 The present invention provides a technical solution: a sprocket-driven tool changer structure, including a tool changer assembly 1, the tool changer assembly 1 including a frame 11, a driven wheel housing 13 and a driven wheel housing 14 fixedly connected to the top of the frame 11, a servo motor 17 installed on one side of the driven wheel housing 14, a transmission sprocket 15 installed on one side of both the driven wheel housing 13 and the driven wheel housing 14, a positioning key 18 installed in the inner cavity of the transmission sprocket 15, a chain 16 meshing with the surfaces of both transmission sprockets 15, a connecting block 19 fixedly connected to the surface of the chain 16, a main body 12 fixedly connected to the surface of the connecting block 19, and a lubrication mechanism 2 installed on the surface of the frame 11; The lubrication mechanism 2 includes an oiling assembly 21, which is located on the top of the frame 11 and is used to lubricate the surface of the chain 16.
[0023] As a further definition of the oiling assembly 21 of the present invention, the oiling assembly 21 includes a fixed base 2108, one side of which is fixedly connected to the surface of the frame 11. A drive motor 2109 is fixedly connected to the inner cavity of the fixed base 2108. A gear 2111 is fixedly connected to the output end of the drive motor 2109. A first toothed plate 2110 is meshed with the surface of the gear 2111. A support frame 2101 is fixedly connected to the surface of the first toothed plate 2110. An oil storage box 2105 is fixedly connected to the surface of the support frame 2101. An oil inlet 2104 is connected to the top of the oil storage box 2105. An oil delivery seat 2106 is connected to the bottom of the oil storage box 2105. A nozzle 2107 is connected to the inner cavity of the oil delivery seat 2106. The oiling assembly 2105 is driven by a drive motor. The motor 2109 drives the gear 2111 to rotate, which in turn drives the first toothed plate 2110 to move up and down. The movement of the first toothed plate 2110 drives the support frame 2101 to move, which in turn drives the oil storage box 2105 to move, which in turn drives the oil supply seat 2106 to move, which in turn drives the nozzle 2107 to move. Thus, when the chain 16 needs lubrication, the nozzle 2107 can be brought close to the chain 16 for lubrication, and when lubrication is not needed, the nozzle 2107 can be moved away from the chain 16 to avoid affecting the normal use of the chain 16. The inner cavity of the support frame 2101 is slidably connected to a guide rod 2102. One end of the guide rod 2102 is fixedly connected to the surface of the frame 11. The guide rod 2102 guides the movement of the support frame 2101, keeps the support frame 2101 vertical, avoids the position of the support frame 2101 from shifting during the movement, and improves the movement stability of the support frame 2101. The other end of the guide rod 2102 is fixedly connected to a limiting plate 2103. One side of the limiting plate 2103 is in contact with the surface of the support frame 2101. By setting the limiting plate 2103, the movement distance of the support frame 2101 is limited to prevent the support frame 2101 from moving too far, causing the support frame 2101 to detach from the surface of the guide rod 2102 and affecting the subsequent normal reset of the support frame 2101.
[0024] The specific implementation method of this embodiment is as follows: When it is necessary to lubricate the chain 16, the drive motor 2109 first drives the gear 2111 to rotate. The rotation of the gear 2111 drives the first toothed plate 2110 to move. The movement of the first toothed plate 2110 drives the support frame 2101 to move. The movement of the support frame 2101 drives the oil storage box 2105 to move. The movement of the oil storage box 2105 drives the oil delivery seat 2106 to move. The oil delivery seat 2106 is moved to one side of the chain 16. Finally, the spray nozzle 2107 sprays the lubricating oil inside the oil storage box 2105 onto the surface of the chain 16, thus completing the lubrication and maintenance of the surface of the chain 16. During the rotation of the chain 16 in use, it is ensured that the chain 16 in contact with the transmission sprocket 15 can be lubricated at multiple positions.
[0025] Example 2: Please refer to Figures 1-4 The present invention provides a technical solution: a sprocket-driven tool changer structure. The present invention makes corresponding improvements to the technical problems mentioned in the background art. The lubrication mechanism 2 also includes a recovery component 22, which is disposed on one side of the oiling component 21. The recovery component 22 is used to recover excess lubricating oil.
[0026] As a further definition of the recycling component 22 of the present invention, the recycling component 22 includes a support plate 2203. One side of the support plate 2203 is fixedly connected to the surface of the frame 11. A second toothed plate 2204 is slidably connected to the top of the support plate 2203. One side of the second toothed plate 2204 is meshed with the surface of the gear 2111. A recycling box 2201 is fixedly connected to one side of the second toothed plate 2204. The recycling box 2201 and the oil supply seat 2106 are at the same vertical position. Through the setting of the second toothed plate 2204, it can move synchronously during the rotation of the gear 2111. The movement of the second toothed plate 2204 can drive the recycling box 2201 to move, and thus it can move synchronously with the oil supply seat 2106 to the vicinity of the chain 16, ensuring synchronous recycling during the lubrication process and reducing pollution to the surrounding environment. A guide plate 2202 is fixedly connected to the inner cavity of the recycling box 2201. The guide plate 2202 is inclined and made of silicone. The guide plate 2202 guides the lubricating oil entering the recycling box 2201, ensuring that the lubricating oil can fall accurately into the recycling box 2201 and avoid the lubricating oil splashing to the surroundings. The guide plate 2202 made of silicone has low surface energy characteristics and a large contact angle with the lubricating oil, so the oil droplets are not easy to spread, thereby reducing the adhesion area and reducing oil film residue. The inner cavity of the second toothed plate 2204 is provided with a movable groove 2208. The inner cavity of the movable groove 2208 is slidably connected to the surfaces of the support frame 2101 and the first toothed plate 2110 respectively. By setting the movable groove 2208, the surface of the second toothed plate 2204 can slide on the surfaces of the support frame 2101 and the first toothed plate 2110, thereby avoiding the second toothed plate 2204 from colliding with the support frame 2101 and the first toothed plate 2110 during the movement. The surface of the second toothed plate 2204 is provided with a moving groove 2206. A connecting plate 2205 is slidably connected to the inner cavity of the moving groove 2206. One side of the connecting plate 2205 is fixedly connected to the surface of the support plate 2203. By setting the moving groove 2206, the surface of the connecting plate 2205 can slide inside the second toothed plate 2204, thereby guiding the movement of the second toothed plate 2204 and improving the stability of the second toothed plate 2204 during the movement process. A positioning rod 2207 is fixedly connected to the inner cavity of the moving groove 2206. The surface of the positioning rod 2207 is slidably connected to the inner cavity of the connecting plate 2205. The positioning rod 2207 limits the movement of the connecting plate 2205, preventing the surface of the support plate 2203 from disengaging during the movement of the second toothed plate 2204, and ensuring stable meshing between the second toothed plate 2204 and the gear 2111.
[0027] The specific implementation method of this embodiment is as follows: During the movement of the oil supply seat 2106, the rotation of the gear 2111 synchronously drives the second toothed plate 2204 to move. The movement of the second toothed plate 2204 drives the recovery box 2201 to move, thereby synchronously moving the recovery box 2201 to the bottom of the oil supply seat 2106. Thus, when the nozzle 2107 sprays oil to lubricate the surface of the chain 16, the lubricating oil that is not attached to the surface of the chain 16 can be recovered, avoiding this part of the lubricating oil from adhering to the surface of other components and reducing pollution to the surrounding environment.
[0028] Example 3: Please refer to Figures 1-8 The present invention provides a technical solution: a chain-driven tool changer structure. The present invention makes corresponding improvements to the technical problems mentioned in the background art. A guide mechanism 3 is installed on the surface of the frame 11, and the guide mechanism 3 is used to guide the movement of the main body 12.
[0029] As a further definition of the guiding mechanism 3 of the present invention, the guiding mechanism 3 includes a fixed bracket 31, a guide seat 32, a sensing plate 35, and a second slider 37. The surfaces of the fixed bracket 31 and the guide seat 32 are fixedly connected to one side of the frame 11. One side of the sensing plate 35 is fixedly connected to the surface of the main body 12. The surface of the second slider 37 is slidably connected to the inner cavity of the main body 12. A sensor switch 34 is fixedly connected to the inner cavity of the fixed bracket 31. The sensor switch 34 works in conjunction with the sensing plate 35. A guide groove 33 is provided in the inner cavity of the guide seat 32. A first slider 36 is slidably connected to the inner cavity of the guide groove 33. One side of the first slider 36 is fixedly connected to the surface of the main body 12. One side of the two sliders 37 is fixedly connected to the surface of the frame 11. Both the first slider 36 and the second slider 37 are made of nylon. The first slider 36 can slide inside the guide groove 33 through the setting of the guide groove 33. The second slider 37 can slide inside the main body 12 through the setting of the guide groove 33. The cooperation of the first slider 36 and the second slider 37 can ensure that the main body 12 moves synchronously up and down, and improve the stability of the main body 12 when it moves. The position of the main body 12 is marked by the setting of the sensing plate 35. When used in conjunction with the sensing switch 34, the position of the main body 12 can be identified, and the stable switching of the main body 12 can be ensured.
[0030] The specific implementation of this embodiment is as follows: During the movement of the main body 12, the movement of the main body 12 is guided by the first slider 36 and the second slider 37 to ensure that the main body 12 moves horizontally and improve the stability of the main body 12 during the movement. By setting the inductive switch 34, the position of the inductive sheet 35 fixed on the surface of the main body 12 can be detected, thereby ensuring whether the main body 12 has reached the specified position during the movement, so as to determine whether the main body 12 has been switched on or off.
[0031] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.
[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A sprocket-driven tool changer structure, comprising a tool changer assembly (1), characterized in that: The tool changer assembly (1) includes a frame (11), with a driven wheel housing (13) and a driven wheel housing (14) fixedly connected to the top of the frame (11). A servo motor (17) is installed on one side of the driven wheel housing (14), and a transmission sprocket (15) is installed on one side of both the driven wheel housing (13) and the driven wheel housing (14). A positioning key (18) is installed in the inner cavity of the transmission sprocket (15). A chain (16) is meshed with the surfaces of both transmission sprockets (15). A connecting block (19) is fixedly connected to the surface of the chain (16), and a main body (12) is fixedly connected to the surface of the connecting block (19). A lubrication mechanism (2) is installed on the surface of the frame (11). The lubrication mechanism (2) includes an oiling assembly (21), which is disposed on the top of the frame (11) and is used to lubricate the surface of the chain (16). The lubrication mechanism (2) further includes a recovery component (22), which is disposed on one side of the oiling component (21) and is used to recover excess lubricating oil. The surface of the frame (11) is equipped with a guide mechanism (3), which is used to guide the movement of the main body (12).
2. The chain-driven tool changer structure according to claim 1, characterized in that: The oiling assembly (21) includes a fixed base (2108), one side of which is fixedly connected to the surface of the frame (11). A drive motor (2109) is fixedly connected to the inner cavity of the fixed base (2108). A gear (2111) is fixedly connected to the output end of the drive motor (2109). A first toothed plate (2110) is meshed with the surface of the gear (2111). A support frame (2101) is fixedly connected to the surface of the first toothed plate (2110). An oil storage box (2105) is fixedly connected to the surface of the support frame (2101). An oil inlet (2104) is connected to the top of the oil storage box (2105). An oil delivery seat (2106) is connected to the bottom of the oil storage box (2105). A nozzle (2107) is connected to the inner cavity of the oil delivery seat (2106).
3. The chain-driven tool changer structure according to claim 2, characterized in that: The inner cavity of the support frame (2101) is slidably connected to a guide rod (2102), and one end of the guide rod (2102) is fixedly connected to the surface of the frame (11).
4. The chain-driven tool changer structure according to claim 3, characterized in that: The other end of the guide rod (2102) is fixedly connected to a limiting plate (2103), and one side of the limiting plate (2103) is in contact with the surface of the support frame (2101).
5. The chain-driven tool changer structure according to claim 1, characterized in that: The recycling assembly (22) includes a support plate (2203), one side of which is fixedly connected to the surface of the frame (11), and a second toothed plate (2204) is slidably connected to the top of the support plate (2203). One side of the second toothed plate (2204) is meshed with the surface of the gear (2111), and a recycling box (2201) is fixedly connected to one side of the second toothed plate (2204). The recycling box (2201) and the oil supply seat (2106) are in the same vertical position.
6. The sprocket-driven tool changer structure according to claim 5, characterized in that: The inner cavity of the recycling box (2201) is fixedly connected to a drainage plate (2202), which is inclined as a whole and is made of silicone.
7. The chain-driven tool changer structure according to claim 5, characterized in that: The inner cavity of the second toothed plate (2204) is provided with a movable groove (2208), and the inner cavity of the movable groove (2208) is slidably connected to the surfaces of the support frame (2101) and the first toothed plate (2110).
8. The sprocket-driven tool changer structure according to claim 5, characterized in that: The second toothed plate (2204) has a movable groove (2206) on its surface. A connecting plate (2205) is slidably connected to the inner cavity of the movable groove (2206). One side of the connecting plate (2205) is fixedly connected to the surface of the support plate (2203).
9. The sprocket-driven tool changer structure according to claim 8, characterized in that: The inner cavity of the movable groove (2206) is fixedly connected to a positioning rod (2207), and the surface of the positioning rod (2207) is slidably connected to the inner cavity of the connecting plate (2205).
10. The sprocket-driven tool changer structure according to claim 1, characterized in that: The guiding mechanism (3) includes a fixed bracket (31), a guide seat (32), a sensor plate (35), and a second slider (37). The surfaces of the fixed bracket (31) and the guide seat (32) are fixedly connected to one side of the frame (11). One side of the sensor plate (35) is fixedly connected to the surface of the main body (12). The surface of the second slider (37) is slidably connected to the inner cavity of the main body (12). An induction switch (34) is fixedly connected to the inner cavity of the fixed bracket (31). The induction switch (34) works in conjunction with the sensor plate (35). A guide groove (33) is opened in the inner cavity of the guide seat (32). A first slider (36) is slidably connected to the inner cavity of the guide groove (33). One side of the first slider (36) is fixedly connected to the surface of the main body (12). One side of the second slider (37) is fixedly connected to the surface of the frame (11). Both the first slider (36) and the second slider (37) are made of nylon.