Transverse moving single-tool-arm tool changing mechanism

Abstract

The utility model discloses a transverse moving single-tool-arm tool changing mechanism, and particularly relates to the technical field of numerical control machine tools, which comprises a fixing frame, a connecting piece fixedly connected to one side of the fixing frame, two guide rails and a transverse plate fixedly connected to the bottom of the fixing frame, a tooth groove arranged on one side of the transverse plate, and a protective shell fixedly connected to the outer side of the fixing frame. The bottom of the fixing frame is fixedly connected with a shell, the top of the shell is fixedly connected with a plurality of sliding buckle bases, the inner sides of the sliding buckle bases are slidably connected with the outer sides of the guide rails, a first gear is rotationally connected into the shell, and a first hydraulic rod is installed at the bottom of the first gear. According to the milling cutter clamping device, the auxiliary clamping mechanism and the moving mechanism are arranged, the push rod and the sliding block are used for pushing the clamping arm, stable clamping force is provided for a milling cutter bayonet, and the stability of a milling cutter in the moving and mounting process is ensured; horizontal movement of the tool arm is achieved through meshing transmission of the gear and the tooth groove, movement of the shell is protected through the spring and the telescopic rod, and the risk that the shell is collided due to the too large movement distance is reduced.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, and more specifically, to a transverse single-tool arm tool changing mechanism. Background Technology

[0002] CNC machine tools are short for numerical control machine tools. They are automated machine tools equipped with a program control system. This control system can logically process programs with control codes or other symbolic instructions, decode them, represent them with coded numbers, input them to the CNC device through an information carrier, and after calculation and processing, the CNC device sends out various control signals to control the machine tool's movements, automatically machining parts according to the shape and size required by the drawings.

[0003] Existing CNC machine tool tool changing devices are relatively complex and prone to tool jamming, affecting production efficiency and product quality.

[0004] A search revealed an automatic tool changer disclosed in Chinese Patent No. CN222078680U. This utility model uses a cylinder to push the tool holder fixing seat to move along the guide rail, sending the tool holder directly below the spindle. At this time, the spindle is driven downward by the drive frame to lock the tool holder onto the spindle. After the tool holder is locked onto the spindle, the cylinder retracts, pulling the tool holder away from the tool holder, and the spindle rises, completing the tool change.

[0005] However, in actual use, when the position of the milling cutter and the position of the spindle are far apart, the movement and installation process of the milling cutter may also cause wobbling, resulting in deviation when the milling cutter is aligned with the spindle. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a transverse single-arm tool changing mechanism to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A transverse single-blade arm tool changing mechanism includes a fixed frame, a connecting member fixedly connected to one side of the fixed frame, two guide rails and a horizontal plate fixedly connected to the bottom of the fixed frame, a toothed groove provided on one side of the horizontal plate, a protective shell fixedly connected to the outer side of the fixed frame, an outer shell fixedly connected to the bottom of the fixed frame, multiple sliding buckle seats fixedly connected to the top of the outer shell, the inner side of the sliding buckle seats being slidably connected to the outer side of the guide rails, a gear rotatably connected inside the outer shell, a hydraulic rod mounted at the bottom of the gear, an auxiliary clamping mechanism provided on the outer side of the hydraulic rod, and a moving mechanism provided on the outer side of the outer shell.

[0009] By adopting the above technical solution, the sliding seat can be used to assist the outer shell in moving horizontally at the bottom of the fixed frame, thereby completing the tool changing operation.

[0010] As a further description of the above technical solution: the auxiliary clamping mechanism includes a cutter arm, the inner side of which is fixedly connected to the outer side of a hydraulic rod. Two clamping arms are rotatably connected to both ends of the cutter arm. A movable seat is fixedly connected to one side of each clamping arm. A push rod is hinged to the outer side of the movable seat. A slider is hinged to one end of the push rod. Two guide frames are fixedly connected to the inner side of the cutter arm. The outer side of the slider is slidably connected to the inner side of the guide frame. A guide rod is fixedly connected inside the guide frame. A spring is sleeved on the outer side of the guide rod. One side of the spring is fixedly connected to the inner side of the guide frame. The inner side of the slider is slidably connected to the outer side of the guide rod.

[0011] By adopting the above technical solution, a pair of sliders and push rods are pushed by a spring, so that the two clamping arms can push the chuck position of the milling cutter to a certain extent, making the movement of the milling cutter more stable.

[0012] As a further description of the above technical solution: a hydraulic rod two is fixedly connected to the inner side of the outer shell, and a transmission column is fixedly connected to the output end of the hydraulic rod two. A toothed groove is opened on one side of the transmission column, and the toothed groove meshes with the outer side of the hydraulic rod one.

[0013] By adopting the above technical solution, the gear one is meshed with the tooth groove on the outside of the transmission column, so that the cutter arm can rotate and the position of the milling cutter can be changed.

[0014] As a further description of the above technical solution: the moving mechanism includes a servo motor, the outer side of which is fixedly connected to the inner side of the housing, and a gear II fixedly connected to the output end of the servo motor. The outer side of the gear II meshes with the tooth groove on the outer side of the cross plate for transmission. Two fixed seats are fixedly connected to the front side of the housing. A base is fixedly connected to one side of each fixed seat. A spring II is fixedly connected to one side of each base. A telescopic rod is fixedly connected to one side of each spring II. The outer side of the telescopic rod is slidably connected to the inner side of the fixed seat. A pad is fixedly connected to one end of the telescopic rod.

[0015] By adopting the above technical solution: using a servo motor and gear two to provide power for the movement of the outer shell, and by squeezing the spring two through the pad and telescopic rod, the impact of collision with the edge of the fixed frame on the outer shell is reduced when the outer shell moves left and right.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] 1. By setting up an auxiliary clamping mechanism, compared with the existing technology, the push rod and slider are used to push the clamping arms, so that the two clamping arms provide a certain clamping force on the end mill chuck, making the end mill more stable during clamping, moving and installing.

[0018] 2. By setting up a moving mechanism, compared with the existing technology, the meshing transmission of gear two allows the cutter arm to move horizontally, and two springs two and a telescopic rod are used to protect the movement of the outer shell, reducing the risk of collision due to excessive movement of the outer shell. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a partial schematic diagram of the connection between the fixing frame and the horizontal plate of this utility model.

[0021] Figure 3 This is a partial schematic diagram of the connection between the outer shell and the hydraulic rod of this utility model.

[0022] Figure 4 This is a partial schematic diagram of the connection between the gear and the transmission column of this utility model.

[0023] Figure 5 This is a partial schematic diagram of the connection between the outer shell and the fixing base of this utility model.

[0024] Figure 6 This is a partial schematic diagram of the connection between the cutter arm and the clamping arm of this utility model.

[0025] Figure 7 For the present utility model Figure 6 An enlarged diagram of A in the diagram.

[0026] Figure 8 This is a partial schematic diagram of the connection between the fixing seat and the base of this utility model.

[0027] The attached diagram is labeled as follows: 1. Fixed frame; 2. Connector; 3. Guide rail; 4. Horizontal plate; 5. Gear groove; 6. Protective shell; 7. Outer shell; 8. Sliding buckle seat; 9. Gear one; 10. Hydraulic rod one; 11. Cutting arm; 12. Clamping arm; 13. Movable seat; 14. Push rod; 15. Slider; 16. Guide frame; 17. Guide rod; 18. Spring one; 19. Fixed seat; 20. Base; 21. Spring two; 22. Telescopic rod; 23. Pad; 24. Hydraulic rod two; 25. Transmission column; 26. Servo motor; 27. Gear two. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] The embodiments disclosed in this application are as follows: Figure 1-8 The illustrated transverse single-blade arm tool changing mechanism includes a fixed frame 1, a connecting piece 2 fixedly connected to one side of the fixed frame 1, two guide rails 3 and a horizontal plate 4 fixedly connected to the bottom of the fixed frame 1, a toothed groove 5 provided on one side of the horizontal plate 4, a protective shell 6 fixedly connected to the outside of the fixed frame 1, an outer shell 7 fixedly connected to the bottom of the fixed frame 1, multiple sliding buckle seats 8 fixedly connected to the top of the outer shell 7, the inner side of the sliding buckle seat 8 slidably connected to the outer side of the guide rail 3, a gear 9 rotatably connected inside the outer shell 7, a hydraulic rod 10 installed at the bottom of the gear 9, an auxiliary clamping mechanism provided on the outer side of the hydraulic rod 10, and a moving mechanism provided on the outer side of the outer shell 7. The two sliding buckle seats 8 slide on the outer side of the guide rail 3, allowing the outer shell 7 to move horizontally.

[0030] Reference Figure 6 , Figure 7 and Figure 8 As shown, the auxiliary clamping mechanism includes a cutter arm 11. The inner side of the cutter arm 11 is fixedly connected to the outer side of the hydraulic rod 10. Two clamping arms 12 are rotatably connected to both ends of the cutter arm 11. A movable seat 13 is fixedly connected to one side of the clamping arm 12. A push rod 14 is hinged to the outer side of the movable seat 13. A slider 15 is hinged to one end of the push rod 14. Two guide frames 16 are fixedly connected to the inner side of the cutter arm 11. The outer side of the slider 15 is slidably connected to the inner side of the guide frame 16. A guide rod 17 is fixedly connected inside the guide frame 16. A spring 18 is sleeved on the outer side of the guide rod 17. One side of the spring 18 is fixedly connected to the inner side of the guide frame 16. The inner side of the slider 15 is slidably connected to the outer side of the guide rod 17. The spring 18 pushes the slider 15, allowing the slider 15 to slide on the outer side of the guide rod 17. This allows the slider 15 to drive the push rod 14 to push the movable seat 13 at one end of the two clamping arms 12, giving the two clamping arms 12 a certain opposing clamping force, making the movement of the milling cutter more stable.

[0031] Reference Figure 4As shown, a hydraulic rod 24 is fixedly connected to the inner side of the outer casing 7. A transmission column 25 is fixedly connected to the output end of the hydraulic rod 24. A toothed groove is opened on one side of the transmission column 25, and the toothed groove meshes with the outer side of the hydraulic rod 10. The hydraulic rod 24 pushes the transmission column 25, so that the toothed groove on one side of the transmission column 25 meshes with one side of the gear 9, thereby allowing the hydraulic rod 10 to rotate under the drive of the gear 9, and driving the cutter arm 11 and the milling cutter to rotate and change.

[0032] Reference Figure 5 and Figure 4 and Figure 8 As shown, the moving mechanism includes a servo motor 26, which is fixedly connected to the outer side of the outer shell 7. A gear 27 is fixedly connected to the output end of the servo motor 26. The outer side of the gear 27 meshes with the toothed groove 5 on the outer side of the horizontal plate 4. Two fixed seats 19 are fixedly connected to the front side of the outer shell 7. A base 20 is fixedly connected to one side of the fixed seat 19. A spring 21 is fixedly connected to one side of the base 20. A telescopic rod 22 is fixedly connected to one side of the spring 21. The outer side of the telescopic rod 22 is slidably connected to the inner side of the fixed seat 19. A pad 23 is fixedly connected to one end of the telescopic rod 22. The servo motor 26 drives the gear 27 to transmit power to the toothed groove 5 on the outer side of the horizontal plate 4. The compression of the spring 21 by the telescopic rod 22 and the pad 23 provides some support for the outer shell 7 after it moves to the edge of the fixed frame 1, thus preventing direct collision between the outer shell 7 and the fixed frame 1.

[0033] The working principle of this utility model is as follows: When replacing the milling cutter in the tool magazine, the servo motor 26 drives the gear 27 to mesh with the toothed groove 5 on the outer side of the horizontal plate 4, causing the outer shell 7 to slide guided by multiple sliding buckles 8 and the outer sides of the two guide rails 3. On the corresponding side of the movement of the outer shell 7, the outer shell 7 can drive the hydraulic rod 10 and the cutter arm 11 to move at the bottom of the fixed frame 1, so that the two clamping arms 12 on one side of the cutter arm 11 engage with the milling cutter in the tool magazine. When the two clamping arms 12 engage with the slots of the milling cutter, the slots of the milling cutter will push the two clamping arms 12, so that the slots of the milling cutter engage between the two clamping arms 12. At the same time, the spring 18 inside the cutter arm 11 pushes the slider 15 and the push rod 14 to deflect the other end of the two clamping arms 12, so that the two clamping arms 12 can clamp the end mill's jaws to a certain extent, clamping the end mill at one end of the cutter arm 11. Then, the servo motor 26 and gear 27 drive the outer shell 7 to move to the other side of the fixed frame 1. Then, the hydraulic rod 24 drives the transmission column 25 to move. The servo motor 26 will mesh with the outer side of gear 9 through the tooth groove on one side. During the rotation of gear 9, the hydraulic rod 10 and the cutter arm 11 will rotate, so that the end mill clamped at one end of the cutter arm 11 can rotate to the other side. Then, the hydraulic rod 10 drives the cutter arm 11 to rise and fall to install the end mill. Finally, when the outer shell 7 moves to both sides of the fixed frame 1, the corresponding telescopic rod 22 and pad 23 buffer the baffles on both sides to reduce the direct collision between the outer shell 7 and the sides of the fixed frame 1 during the movement.

[0034] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cross slide single tool post tool changer comprising a fixed frame (1), characterized in that: The fixed frame (1) one side is fixedly connected with connecting piece (2), the fixed frame (1) bottom is fixedly connected with two guide rails (3) and horizontal plate (4), the horizontal plate (4) one side is provided with the tooth slot (5), the fixed frame (1) outside is fixedly connected with the protective shell (6), the fixed frame (1) bottom is fixedly connected with the shell (7), the shell (7) top is fixedly connected with a plurality of slide buckle seat (8), the slide buckle seat (8) inside and guide rail (3) outside slide connection, the shell (7) inside rotationally connected with gear one (9), gear one (9) bottom is installed with hydraulic rod one (10), the hydraulic rod one (10) outside is provided with auxiliary clamping mechanism, the shell (7) outside is provided with moving mechanism.

2. The traversing single-tool-arm tool changer according to claim 1, characterized in that: The auxiliary clamping mechanism includes the knife arm (11), the knife arm (11) inside is fixedly connected with the hydraulic rod one (10) outside, both ends of the knife arm (11) are rotatably connected with two clamping arms (12), the clamping arm (12) one side is fixedly connected with the movable seat (13), the movable seat (13) outside is hinged with push rod (14), the push rod (14) one end is hinged with sliding block (15).

3. The traversing single-tool-arm tool changer according to claim 2, characterized in that: The knife arm (11) inside is fixedly connected with two guide frames (16), the sliding block (15) outside and guide frame (16) inside slide connection, the guide frame (16) inside is fixedly connected with guide rod (17).

4. The traversing single-tool-arm tool changer according to claim 3, characterized in that: The guide rod (17) outside is sleeved with spring one (18), the spring one (18) one side and guide frame (16) inside fixed connection, the sliding block (15) inside and guide rod (17) outside slide connection.

5. The traversing single-tool-arm tool changer according to claim 1, characterized in that: The shell (7) inside is fixedly connected with hydraulic rod two (24), the hydraulic rod two (24) output end is fixedly connected with transmission column (25), the transmission column (25) one side is provided with the tooth slot, and the tooth slot is engaged with the hydraulic rod one (10) outside.

6. The traversing single-tool-arm tool changer according to claim 1, characterized in that: The moving mechanism includes servo motor (26), the servo motor (26) outside and shell (7) inside fixed connection, the servo motor (26) output end is fixedly connected with gear two (27), the gear two (27) outside and the tooth slot (5) of horizontal plate (4) outside meshing drive.

7. The traversing single-tool-arm tool changer according to claim 1, characterized in that: The shell (7) front side is fixedly connected with two fixed seats (19), the fixed seat (19) one side is fixedly connected with base (20), the base (20) one side is fixedly connected with spring two (21), the spring two (21) one side is fixedly connected with telescopic rod (22), the telescopic rod (22) outside and fixed seat (19) inside slide connection, the telescopic rod (22) one end is fixedly connected with pad (23).

Images