A mechanical arm for tool auxiliary hoisting of horizontal machining center

Abstract

This utility model discloses a robotic arm for auxiliary tool lifting in a horizontal machining center, specifically relating to the field of machining auxiliary tools. It includes a base, with a first stepper motor fixedly connected inside. A turntable is fixedly connected to the output end of the first stepper motor, and a guide ring is slidably connected to the inner side of the turntable. The guide ring is fixedly connected to the top of the base, and a column is fixedly connected to the top of the turntable. A support base is fixedly connected to the top of the column, and an electric telescopic rod is hinged inside the support base. This utility model, by setting a limiting component and an adjusting mechanism, can effectively limit the range of motion of the tool within the hook during lifting, reducing the risk of the tool lifting rope separating from the hook due to lifting movement, thus increasing safety during lifting. Simultaneously, by adjusting its lifting amplitude and tilt angle, the tool can be more easily installed and adjusted to a suitable position, thereby enhancing machining flexibility.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary tools for machining, and more specifically, to a robotic arm for auxiliary lifting of cutting tools in a horizontal machining center. Background Technology

[0002] Horizontal machining centers are highly automated machine tools used for multi-faceted machining of workpieces. During machining, tool changes are frequent and the tools are heavy; manual tool changes are not only inefficient but also pose safety hazards. Robotic arms for tool lifting have emerged to address this need, automatically, efficiently, and safely performing tool lifting and changing tasks, thus improving production efficiency and machining quality.

[0003] The stage operator changes the tool by manually moving, centering and clamping it. The medium-sized tool weighs about 40 kilograms. Moving and clamping the tool manually is both laborious and time-consuming.

[0004] A search revealed that Chinese Patent CN212893580U discloses a machine for auxiliary lifting of cutting tools in a horizontal machining center. The cantilever beam can rotate in the horizontal plane, and a hoist is installed on the cantilever beam. The hoist is used to assist the operator in moving heavy cutting tools, reducing the operator's labor intensity and indirectly improving product processing efficiency.

[0005] In actual use, the lifting rope of the aforementioned machine used for auxiliary lifting of tools in horizontal machining centers may slip out of the opening of the hook due to the shaking, movement or external interference of the tool, causing the tool to fall off. This will not only damage the tool, but also cause a safety accident, thus affecting the safety of operation. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a robotic arm for auxiliary lifting of tools in a horizontal machining center, so as 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 robotic arm for auxiliary tool lifting in a horizontal machining center includes a base. A first stepper motor is fixedly connected inside the base. A turntable is fixedly connected to the output end of the first stepper motor. A guide ring is slidably connected to the inner side of the turntable. The guide ring is fixedly connected to the top of the base. A column is fixedly connected to the top of the turntable. A support base is fixedly connected to the top of the column. An electric telescopic rod is hinged inside the support base. An unwinding machine is fixedly connected to the top of the electric telescopic rod. A lifting rope is installed inside the unwinding machine. A fixing block is fixedly connected to the bottom end of the lifting rope. A limit component is provided below the fixing block. An adjustment mechanism is installed inside the column. The limiting component includes a fixed outer shell. A hook is fixedly connected to the bottom of the fixed outer shell. A connecting groove is opened on one side of the hook. A threaded rod is rotatably connected inside the fixed outer shell. Two sliding grooves are opened inside the fixed outer shell. A drive disk is fixedly connected to one end of the threaded rod. A threaded block is threadedly connected to the outside of the threaded rod. Sliding blocks are fixedly connected to both ends of the threaded block. The sliding blocks are slidably connected to the inside of the sliding grooves. A limiting plate is fixedly connected to one side of the threaded block. A connecting block is fixedly connected to the bottom of the limiting plate. The connecting block is engaged with the inside of the connecting groove.

[0009] By adopting the above technical solution, the opening of the hook can be sealed during hoisting, greatly reducing the risk of the tool falling off and helping to increase the safety of hoisting.

[0010] As a further description of the above technical solution: the adjustment mechanism includes a second stepper motor, which is installed inside the column. A lead screw is fixedly connected to the output end of the second stepper motor. A movable block is threadedly connected to the outer side of the lead screw. A push rod is hinged to the inner side of the movable block. A hinge support is hinged to one end of the push rod. The hinge support is fixedly connected to one side of the electric telescopic rod.

[0011] By adopting the above technical solution, the lifting angle of the second stepper motor 22 can be adjusted, which enhances the processing flexibility.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. By setting a limiting component, compared with the existing technology, the opening can be closed by the movement of the limiting plate during hook hoisting, which can effectively limit the range of movement of the tool in the hook during hoisting. This can reduce the risk of the tool lifting rope separating from the hook due to hoisting movement, greatly reduce the risk of the tool falling off, and help increase the safety during hoisting.

[0014] 2. By setting up an adjustment mechanism, compared with the existing technology, the movement of the movable block can pull and push the electric telescopic rod to tilt, so that the tool can be more easily installed and adjusted to the appropriate position by adjusting its own lifting amplitude tilt angle, thereby enhancing the processing flexibility. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a cross-sectional view of the column structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the top structure of the column of this utility model.

[0018] Figure 4 This is a partial structural diagram of the hook connection of this utility model.

[0019] Figure 5 This is a cross-sectional view of the fixed outer shell of this utility model.

[0020] Figure 6 This is a schematic diagram of the limiting plate structure of this utility model.

[0021] The attached diagram is labeled as follows: 1. Base; 2. First stepper motor; 3. Turntable; 4. Guide ring; 5. Column; 6. Support base; 7. Unwinder; 8. Lifting rope; 9. Fixing block; 10. Fixed outer shell; 11. Hook; 12. Connecting groove; 13. Threaded rod; 14. Drive disc; 15. Threaded block; 16. Sliding block; 17. Limiting plate; 18. Connecting block; 19. Slide groove; 20. Electric telescopic rod; 22. Second stepper motor; 23. Lead screw; 24. Movable block; 25. Push rod; 26. Hinge support. Detailed Implementation

[0022] 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.

[0023] The embodiments disclosed in this application are as follows: Figure 1-6The robotic arm shown is used for auxiliary lifting of tools in a horizontal machining center. It includes a base 1, with a first stepper motor 2 fixedly connected inside the base 1. A turntable 3 is fixedly connected to the output end of the first stepper motor 2. A guide ring 4 is slidably connected to the inner side of the turntable 3 and fixedly connected to the top of the base 1. A column 5 is fixedly connected to the top of the turntable 3, and a support base 6 is fixedly connected to the top of the column 5. An electric telescopic rod 20 is hinged inside the support base 6. An unwinding machine 7 is fixedly connected to the top of the electric telescopic rod 20. A lifting rope 8 is installed inside the unwinding machine 7, and a fixing block 9 is fixedly connected to the bottom end of the lifting rope 8. A limit assembly is provided below the fixing block 9. An adjustment mechanism is installed inside the column 5. The limit assembly includes a fixed housing 10, with a hook 11 fixedly connected to the bottom end of the fixed housing 10. A connecting groove 12 is provided on one side of the hook 11. A threaded rod 13 is rotatably connected inside the fixed housing 10, and two sliding grooves 19 are provided inside the fixed housing 10. A drive disc 14 is fixedly connected to one end of the threaded rod 13. A threaded block 15 is threadedly connected to the outside of the threaded rod 13. Sliding blocks 16 are fixedly connected to both ends of the threaded block 15. The sliding blocks 16 are slidably connected to the inside of the slide groove 19. A limit plate 17 is fixedly connected to one side of the threaded block 15. A connecting block 18 is fixedly connected to the bottom end of the limit plate 17. The connecting block 18 is engaged with the inside of the connecting groove 12. By rotating the threaded rod 13, the threaded rod 13 drives the threaded block 15 to rotate through the thread. The two connecting grooves 126 are slidably connected to the inside of the slide groove 19, which can provide guidance for the movement of the threaded block 15. The threaded block 15 can drive the limit plate 17 to move. The limit plate 17 can drive the connecting block 18 to be inserted into the connecting groove 12. This can close the opening of the hook 11 during hoisting, effectively limiting the range of motion of the tool in the hook 11 during hoisting, reducing the separation and fall of the tool lifting rope from the hook due to hoisting movement, thereby improving the safety of hoisting.

[0024] Reference Figure 2 As shown, the adjustment mechanism includes a second stepper motor 22, which is installed inside the column 5. A lead screw 23 is fixedly connected to the output end of the second stepper motor 22. A movable block 24 is threadedly connected to the outer side of the lead screw 23. A push rod 25 is hinged to the inner side of the movable block 24. A hinge support 26 is hinged to one end of the push rod 25. The hinge support 26 is fixedly connected to one side of the electric telescopic rod 20. The movable block 24 is moved by rotating the lead screw 23, which in turn drives the push rod 25 to move. The push rod 25 can pull the electric telescopic rod 20 through the hinge support 26 to adjust the amplitude and tilt, thereby adjusting the hoisting angle and making it easier to install and adjust the tool to the appropriate position, thus enhancing the processing flexibility.

[0025] Working principle of this utility model: This utility model designs a robotic arm for auxiliary lifting of cutting tools in a horizontal machining center. The specific structure is shown in the attached instruction manual. Figure 1-6As shown, in this technical solution, through the cooperation between various structures, when it is necessary to hoist the processing tool, the unwinding machine 7 is started first. The unwinding machine 7 can unwind the hoisting rope 8 so as to move the hook 11 to a suitable position. Then, the tool is put on the inside of the hook 11, and the drive disk 14 is manually rotated so that the drive disk 14 can drive the threaded rod 13 to rotate. The threaded rod 13 can drive the threaded block 15 to move through the thread. The two sliding blocks 16 are slidably connected to the inside of the slide groove 19 so that the threaded block 15 can stably drive the limiting plate 17 to move. The limiting plate 17 can drive the connecting block 18 to insert into the inside of the connecting groove 12 so that the limiting plate 17 can be closed on the outside of the hook 11. When it is necessary to rotate the hoisted tool to another direction, the first stepper motor 2 is started. The first stepper motor 2 drives the turntable 3 to rotate. The turntable 3 is slidably connected to the outside of the guide ring 4 so that the guide ring 4 can stably drive the column 5 to rotate.

[0026] When the lifting angle of the electric telescopic boom 20 needs to be adjusted, the second stepper motor 22 is started, and the second stepper motor 22 drives the lead screw 23 to rotate, so that the lead screw 23 can drive the movable block 24 to rotate through the thread. The movable block 24 can drive one end of the push rod 25 to move. The two ends of the push rod 25 are respectively hinged to the movable block 24 and the inner side of the hinge support 26, so that the movable block 24 can pull the electric telescopic boom 20 to move through the push rod 25. The support seat 6 can support the electric telescopic boom 20, so that the electric telescopic boom 20 can be tilted and adjusted.

[0027] In the accompanying drawings of the embodiments disclosed in this utility model, only the structures involved in the embodiments of this utility model are shown. Other structures can be referred to with ordinary design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0028] 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 existing technologies and are therefore not shown in the figures and will not be described here.

[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mechanical arm for the assisted handling of tools in horizontal machining centers, comprising a base (1), characterized in that: The base (1) is fixedly connected to a first stepper motor (2), the output end of the first stepper motor (2) is fixedly connected to a turntable (3), the inner side of the turntable (3) is slidably connected to a guide ring (4), the guide ring (4) is fixedly connected to the top of the base (1), the top of the turntable (3) is fixedly connected to a column (5), the top of the column (5) is fixedly connected to a support seat (6), the support seat (6) is hinged to an electric telescopic rod (20), the top of the electric telescopic rod (20) is fixedly connected to an unwinding machine (7), the unwinding machine (7) is installed with a lifting rope (8), the bottom end of the lifting rope (8) is fixedly connected to a fixing block (9), a limit component is provided below the fixing block (9), and an adjustment mechanism is installed inside the column (5).

2. The mechanical arm for tool assisted hoisting in horizontal machining centers according to claim 1, characterized in that: The limiting component includes a fixed housing (10), and a hook (11) is fixedly connected to the bottom end of the fixed housing (10). A connecting groove (12) is provided on one side of the hook (11).

3. The mechanical arm for tool auxiliary lifting of horizontal machining center according to claim 2, characterized in that: The fixed housing (10) is rotatably connected to a threaded rod (13), and two sliding grooves (19) are opened inside the fixed housing (10). One end of the threaded rod (13) is fixedly connected to a drive disk (14).

4. The mechanical arm for tool auxiliary lifting of horizontal machining center according to claim 3, characterized in that: The threaded rod (13) is threaded to the outside of a threaded block (15), and both ends of the threaded block (15) are fixedly connected to sliding blocks (16), which are slidably connected to the inside of the groove (19).

5. The mechanical arm for tool auxiliary lifting of horizontal machining center according to claim 4, characterized in that: A limiting plate (17) is fixedly connected to one side of the threaded block (15), and a connecting block (18) is fixedly connected to the bottom end of the limiting plate (17). The connecting block (18) is engaged with the inner side of the connecting groove (12).

6. The mechanical arm for tool assisted lifting in horizontal machining centers according to claim 1, characterized in that: The adjustment mechanism includes a second stepper motor (22), which is installed inside the column (5). The output end of the second stepper motor (22) is fixedly connected to a lead screw (23), and a movable block (24) is threadedly connected to the outside of the lead screw (23).

7. The mechanical arm for tool auxiliary lifting of horizontal machining center according to claim 6, characterized in that: The movable block (24) is hinged to a push rod (25) on its inner side. One end of the push rod (25) is hinged to a hinge support (26). The hinge support (26) is fixedly connected to one side of the electric telescopic rod (20).

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