Quick-change type lathe tool clamping mechanism

Abstract

The utility model belongs to the technical field of clamping mechanisms, and particularly relates to a quick-change type lathe tool clamping mechanism which comprises a bottom plate, a threaded rod is rotationally connected to the interior of the bottom plate, one end of the threaded rod penetrates through the side wall of the bottom plate and extends to the outside of the bottom plate, a hand wheel is fixed to one end of the threaded rod, and the other end of the threaded rod is provided with a clamping mechanism. Two external threads are formed in the outer side of the threaded rod, the rotating directions of the two external threads are opposite, the two ends of the outer side of the threaded rod are both in threaded connection with moving plates, the upper ends of the two moving plates extend to the upper end of the bottom plate, and clamping plates are fixed to the ends, close to each other, of the two moving plates. The movable plate drives the racks to drive the gears to conduct transmission, the double racks are matched with the limiting grooves, the cutter fixing stability is improved, meanwhile, an efficient heat dissipation structure composed of the heat conduction rods and the heat dissipation fins effectively solves the problem that the cutter works to generate heat, and the convenience and reliability of lathe cutter operation are improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of clamping mechanisms, specifically relating to a quick-change lathe tool clamping mechanism. Background Technology

[0002] Machine tool clamping mechanisms, as key devices used to clamp and fix workpieces and undertake the tasks of workpiece loading, unloading and positioning, can be classified into general-purpose, special-purpose and adjustable types according to their applicable scope in machine tool use.

[0003] However, common clamping methods are cumbersome to operate and time-consuming to change tools, making it difficult to meet the demands of modern fast-paced production for rapid tool change and fixation. Furthermore, the fixation method suffers from poor stability, causing the tool to easily wobble or shift during operation. This leads to reduced machining accuracy and increased product defect rates. In addition, due to the instability of the tool position, operators must frequently adjust the tool position, which undoubtedly significantly extends lathe downtime and severely restricts the improvement of machining efficiency. Based on the above problems, this application proposes a quick-change lathe tool clamping mechanism to improve these issues. Utility Model Content

[0004] The purpose of this invention is to provide a quick-change lathe tool clamping mechanism that can quickly fix the tool. A moving plate drives a rack and pinion transmission, and the double racks cooperate with the limiting grooves to improve the tool's fixing stability. Simultaneously, a high-efficiency heat dissipation structure composed of heat-conducting rods and heat dissipation fins effectively solves the problem of tool overheating during operation, improving the convenience and reliability of lathe tool operation.

[0005] The specific technical solution adopted in this utility model is as follows:

[0006] A quick-change lathe tool clamping mechanism includes a base plate, a threaded rod rotatably connected inside the base plate, one end of the threaded rod penetrating the side wall of the base plate and extending to the outside of the base plate, a handwheel fixed to one end of the threaded rod, two external threads with opposite directions of rotation on the outer side of the threaded rod, movable plates threaded to both ends of the outer side of the threaded rod, the upper ends of the two movable plates extending to the upper end of the base plate, clamping plates fixed to the adjacent ends of the two movable plates, and a tool disposed on the upper end of the base plate between the two clamping plates.

[0007] In a preferred embodiment, the handwheel is fitted with an anti-slip rubber sleeve on its outer side, and the outer side of the anti-slip rubber sleeve is evenly provided with a plurality of anti-slip textures.

[0008] In a preferred embodiment, a shell is fixed to the upper end of the base plate, and a first fixing rod and a second fixing rod are fixed to the two ends of the inner wall of the shell from bottom to top. A first gear is rotatably connected to one end of each of the two first fixing rods, and a second gear is rotatably connected to one end of each of the two second fixing rods. The first gear and the second gear are meshed together. A rack is fixed to the upper end of each of the two movable plates, and the rack is meshed with the first gear. A double rack is meshed between the two second gears.

[0009] In a preferred embodiment, a limiting groove is formed at the upper end of the cutting tool, the limiting groove is located at the lower end of the double rack, and the lower end of the double rack is adapted to the limiting groove.

[0010] In a preferred embodiment, the upper end of the double rack extends to the upper end of the housing, and the double rack and the housing are slidably connected.

[0011] In a preferred embodiment, a heat-conducting rod is fixed inside the outer shell, and the heat-conducting rod is located at one end of the cutting tool. A heat dissipation fin is fixed at the end of the heat-conducting rod away from the cutting tool, and the heat dissipation fin is located at one end of the outer shell.

[0012] The technical effects achieved by this utility model are as follows:

[0013] This utility model, through its threaded rod, handwheel, moving plate, and clamping plate structure, allows for convenient and precise adjustment of the clamping force to secure the cutting tool. The movement of the moving plate drives the rack, and the gear and rack transmission, along with the cooperation of the double rack and the limiting groove, enhances the stability and accuracy of tool fixation. The heat dissipation structure, consisting of a heat-conducting rod and heat dissipation fins, effectively prevents performance degradation and component damage caused by tool heat during operation, ensuring long-term stable operation of the device and improving the convenience and reliability of lathe tool operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the outer shell of this utility model;

[0016] Figure 3 This is a cross-sectional view of the interior of the outer casing of this utility model.

[0017] The attached diagram lists the components represented by each number as follows:

[0018] 10. Base plate; 11. Threaded rod; 12. Handwheel; 13. Moving plate; 14. Clamping plate; 15. Cutting tool; 16. Housing; 17. First fixing rod; 18. Second fixing rod; 19. First gear; 20. Second gear; 21. Rack; 22. Double rack; 23. Heat-conducting rod; 24. Heat dissipation fins. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of this utility model. However, this utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this utility model. The phrase "in a preferred embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0022] Secondly, this utility model is described in detail with reference to the schematic diagrams. When detailing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0023] Please see the appendix Figure 1 and Figure 2 As shown, this utility model provides a quick-change lathe tool clamping mechanism, including a base plate 10. A threaded rod 11 is rotatably connected inside the base plate 10, and one end of the threaded rod 11 passes through the side wall of the base plate 10 and extends to the outside of the base plate 10. A handwheel 12 is fixed to one end of the threaded rod 11. Two external threads are opened on the outer side of the threaded rod 11, and the two external threads have opposite directions of rotation. Both ends of the outer side of the threaded rod 11 are threadedly connected to movable plates 13, and the upper ends of the two movable plates 13 extend to the upper end of the base plate 10. A clamping plate 14 is fixed to the end of the two movable plates 13 that are close to each other. A tool 15 is arranged on the upper end of the base plate 10 and between the two clamping plates 14.

[0024] In this embodiment, during operation, the tool 15 to be operated is placed on the upper end of the base plate 10, positioned appropriately between the two clamping plates 14. Since the threaded rod 11 has two external threads on its outer side with opposite directions of rotation, both ends of the outer side of the threaded rod 11 are threadedly connected to movable plates 13. The upper ends of the two movable plates 13 extend to the upper end of the base plate 10, and the two movable plates 13 are slidably connected to the base plate 10. The two movable plates 13 are located inside the outer casing 16. One end of the threaded rod 11 is rotatably connected to the inside of the base plate 10, and the other end of the threaded rod 11... A handwheel 12 is fixed at one end of the base plate 10. When the handwheel 12 is rotated, it drives the threaded rod 11 to rotate. As the threaded rod 11 rotates, due to the action of the thread, the two moving plates 13 will move towards each other (closer to each other) along the threaded rod 11. At the same time as the two moving plates 13 approach each other, the clamping plate 14 fixed at one end of it also approaches, until the two clamping plates 14 tightly clamp the tool 15, thereby fixing the tool 15. During this process, the clamping force of the clamping plate 14 on the tool 15 can be adjusted by controlling the rotation angle of the handwheel 12.

[0025] In a preferred embodiment, please refer to Figure 1 The outer side of the handwheel 12 is fitted with an anti-slip rubber sleeve, and the outer side of the anti-slip rubber sleeve is evenly provided with several anti-slip textures.

[0026] In this embodiment, when the operator turns the handwheel 12, the anti-slip rubber sleeve and anti-slip texture can significantly increase the friction between the hand and the handwheel 12, making the turning process smoother and improving the convenience of operation.

[0027] Secondly, please refer to again Figure 2 and Figure 3 The upper end of the base plate 10 is fixed with a shell 16. The two ends of the inner wall of the shell 16 are fixed with a first fixing rod 17 and a second fixing rod 18 from bottom to top. One end of each of the two first fixing rods 17 is rotatably connected to a first gear 19. One end of each of the two second fixing rods 18 is rotatably connected to a second gear 20. The first gear 19 and the second gear 20 are meshed together. The upper ends of the two moving plates 13 are fixed with racks 21. The racks 21 are meshed with the first gears 19. The two second gears 20 are meshed with a double rack 22.

[0028] In this embodiment, when it is necessary to fix the cutter 15, the handwheel 12 is turned to bring the moving plates 13 closer together. The rack 21 fixed to the upper end of the moving plate 13 also moves accordingly. Since the rack 21 is meshed with the first gear 19, and the first gear 19 is rotatably connected to one end of the first fixing rod 17, and the other end of the first fixing rod 17 is fixed to the inner wall of the outer casing 16, the movement of the rack 21 will drive the first gear 19 to rotate. Furthermore, since the first gear 19 is meshed with the second gear 20, the rotation of the first gear 19 will drive the second gear 20 to rotate. When the first gear 19 rotates, the second gear 20 is rotatably connected to one end of the second fixed rod 18. Since the two first gears 19 are driven by two racks 21 that move in opposite directions, the rotation directions of the two second gears 20 are opposite. The two second gears 20 are meshed with a double rack 22. Since the two second gears 20 rotate in opposite directions, they will jointly drive the double rack 22 to move in a straight line. The movement of the double rack 22 can help stabilize the movement of the clamping plate 14, ensuring that the two clamping plates 14 can synchronously and stably approach the tool 15, and finally achieve the clamping of the tool 15.

[0029] Secondly, please refer to the following as well. Figure 2 and Figure 3 The upper end of the cutting tool 15 is provided with a limiting groove, which is located at the lower end of the double rack 22, and the lower end of the double rack 22 is adapted to the limiting groove.

[0030] In this embodiment, when the double rack 22 moves downward, its lower end will gradually approach the limiting groove at the upper end of the tool 15. When the clamping plate 14 clamps the tool 15, the lower end of the double rack 22 is just embedded in the limiting groove, realizing the limiting fit, further restricting the movement of the tool 15 in the horizontal and vertical directions, and improving the stability of the tool 15.

[0031] To further understand and explain, Figure 3 For example, the upper end of the double rack 22 extends to the upper end of the housing 16, and the double rack 22 and the housing 16 are slidably connected.

[0032] In this embodiment, the upper end of the double rack 22 extends to the upper end of the housing 16 and is slidably connected to the housing 16, which can provide reliable guidance for the movement of the double rack 22, ensuring that it maintains a straight trajectory during up and down movement, and enabling the lower end of the double rack 22 to accurately engage or disengage with the limiting groove of the cutter 15, thereby improving the accuracy of operation.

[0033] In a preferred embodiment, please refer to Figure 3 A heat-conducting rod 23 is fixed inside the outer shell 16, and the heat-conducting rod 23 is located at one end of the cutter 15. A heat dissipation fin 24 is fixed at the end of the heat-conducting rod 23 away from the cutter 15, and the heat dissipation fin 24 is located at one end of the outer shell 16.

[0034] In this embodiment, when the cutting tool 15 is working, it generates heat. At this time, the heat-conducting rod 23 located at one end of the cutting tool 15 plays a role. That is, the heat will spontaneously transfer from the high-temperature area of ​​the cutting tool 15 to the low-temperature area of ​​the heat-conducting rod 23. Since the heat-conducting rod 23 is in close contact with the cutting tool 15, the heat generated by the cutting tool 15 is quickly transferred to the heat-conducting rod 23. Then, the heat-conducting rod 23 conducts the absorbed heat to the heat dissipation fins 24 fixed at the end away from the cutting tool 15. The heat dissipation fins 24 dissipate the heat to the surrounding environment by increasing the contact area with the air. Since the heat dissipation fins 24 are located at one end of the outer shell 16, the heat can be effectively dissipated outside the device, avoiding the accumulation of heat inside the device and preventing problems such as performance degradation or component damage due to overheating.

[0035] The working principle of this utility model is as follows:

[0036] By rotating the handwheel 12, the threaded rod 11 is driven, and the two moving plates 13 move in opposite directions or in opposite directions using the oppositely screwed external threads on the threaded rod 11, thereby clamping and releasing the tool 15 by the clamping plate 14. At the same time, the rack 21 on the moving plate 13 drives the first gear 19 to rotate, and the first gear 19 drives the second gear 20, which together drive the double rack 22 to move, assisting in stabilizing the movement of the clamping plate 14 and cooperating with the limiting groove of the tool 15, further improving the fixing stability of the tool 15. In addition, the heat generated by the operation of the tool 15 is transferred to the heat dissipation fins 24 through the heat-conducting rod 23, which is in close contact with the tool 15, and dissipated to the outside of the device by increasing the contact area with the air, ensuring the stable operation of the device.

[0037] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.

Claims

1. A quick change lathe tool holder clamping mechanism comprising a base plate (10) characterised in that: The inside of the bottom plate (10) is rotatably connected with a threaded rod (11), one end of the threaded rod (11) penetrates the side wall of the bottom plate (10) and extends to the outside of the bottom plate (10), one end of the threaded rod (11) is fixedly connected with a hand wheel (12), the outer side of the threaded rod (11) is provided with two external threads, the rotation directions of the two external threads are opposite, the outer sides of both ends of the threaded rod (11) are threadedly connected with moving plates (13), the upper ends of the two moving plates (13) extend to the upper end of the bottom plate (10), the ends of the two moving plates (13) close to each other are fixedly connected with clamping plates (14), and the upper end of the bottom plate (10) and between the two clamping plates (14) is provided with a cutter (15).

2. A quick change lathe tool holder according to claim 1, characterized in that: The outer side of the hand wheel (12) is sleeved with an anti-skid rubber sleeve, and the outer side of the anti-skid rubber sleeve is uniformly provided with a plurality of anti-skid lines.

3. A quick change lathe tool holder according to claim 1, wherein: The upper end of the bottom plate (10) is fixedly connected with an outer shell (16), the inner wall of the outer shell (16) is sequentially fixedly connected from bottom to top with a first fixed rod (17) and a second fixed rod (18), one end of each of the two first fixed rods (17) is rotatably connected with a first gear (19), one end of each of the two second fixed rods (18) is rotatably connected with a second gear (20), the first gear (19) and the second gear (20) are in meshing connection, the upper end of each of the two moving plates (13) is fixedly connected with a rack (21), the rack (21) and the first gear (19) are in meshing connection, and the two second gears (20) are in meshing connection with a double rack (22).

4. The quick-change lathe tool holder according to claim 1, characterized in that: The upper end of the cutter (15) is provided with a limiting groove, the limiting groove is located at the lower end of the double rack (22), and the lower end of the double rack (22) is matched with the limiting groove.

5. A quick change lathe tool holder according to claim 4, wherein: The upper end of the double rack (22) extends to the upper end of the outer shell (16), and the double rack (22) and the outer shell (16) are in sliding connection.

6. A quick change lathe tool holder assembly according to claim 5, wherein: The inside of the outer shell (16) is fixedly connected with a heat conduction rod (23), one end of the heat conduction rod (23) is located at the cutter (15), one end of the heat conduction rod (23) away from the cutter (15) is fixedly connected with a heat dissipation fin (24), and the heat dissipation fin (24) is located at one end of the outer shell (16).

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