Knife handle type manipulator for numerical control machine tool
By using a servo motor to drive a bevel gear system and a worm gear mechanism, the problem of inaccurate adjustment of the mechanical gripper angle in CNC machine tools is solved, achieving stable clamping of the tool holder and rapid angle adjustment, thereby improving machining accuracy and efficiency.
Patent Information
- Application Number
- CN202422846441.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-11-21
AI Technical Summary
The toolholder-type robotic arms of existing CNC machine tools have difficulty in ensuring the accuracy of the mechanical gripper angle adjustment, resulting in unstable machining quality.
The system employs a servo motor to drive a bevel gear system and a worm gear mechanism, enabling automated angle adjustment of the mechanical gripper and fixation of the tool holder. The bevel gear meshing drives the turntable and shaft to rotate, and the worm gear meshing achieves stable clamping of the tool holder.
It enables rapid and precise adjustment of the tool mounting angle, improves machining accuracy and efficiency, and prevents slippage of the tool holder during rotation.
Smart Images

Figure CN223519206U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to numerical control machine tool technical field, concretely is a kind of tool shank type manipulator for numerical control machine tool. BACKGROUND
[0002] The rotating shaft in the tool shank type manipulator is used to install tool holder, and provides rotating power and accurate control to realize automatic tool replacement and machining operation, the rotating shaft is connected to motor or other power source, can hold and rotate tool, and ensure that tool is accurately placed on the working position on numerical control machine tool, and rotates when needed, such design enables tool shank type manipulator to realize efficient tool operation on numerical control machine tool, improves machining efficiency and accuracy.
[0003] In prior art, the tool shank type manipulator of numerical control machine tool, the mechanical claw angle adjusting mode is through manual adjusting mechanism, for example, the angle of claw is fixed using fixed bolt or clamp, operator needs to manually loosen, adjust and re-fix bolt.
[0004] Manual adjustment is difficult to guarantee the accuracy of each adjustment, which may cause inconsistent clamping angle, affect machining quality, and operator may make mistakes during adjustment, causing mechanical claw to fail to correctly clamp workpiece, thereby affecting work effect, and the angle of mechanical claw cannot be adjusted, to solve the above problems, the tool shank type manipulator for numerical control machine tool is provided. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a kind of tool shank type manipulator for numerical control machine tool, solve the problem that mechanical claw cannot be adjusted in background art.
[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of tool shank type manipulator for numerical control machine tool, including main shaft and fixed ring, the first motor is fixedly connected on the inner wall top of main shaft, the first connecting rod is fixedly connected in the output of first motor, the third bevel gear is fixedly connected in the bottom of first connecting rod, the servo motor is fixedly connected on the side of main shaft, the second bevel gear is fixedly connected in the output of servo motor, the first bevel gear is rotatably connected in the bottom of the inner wall of main shaft, and the first bevel gear is rotatably connected with the second bevel gear, the rotary table is rotatably connected in the bottom of main shaft, the rotary table is fixedly connected with the bottom of first bevel gear, the first fixed block is fixedly connected in the bottom of rotary table, the second connecting rod is rotatably connected between the first fixed block, the fourth bevel gear is rotatably connected on the side of first fixed block, and the fourth bevel gear is fixedly connected with the outer ring one side of second connecting rod, and the fourth bevel gear is rotatably connected with third bevel gear, the rotating rod is fixedly connected in the middle of the outer ring of second connecting rod, the protective housing is fixedly connected in the bottom of rotating rod, the fixture assembly is arranged in the inner wall of protective housing.
[0007] By adopting the technical scheme, the servo motor drives the second bevel gear to rotate, the second bevel gear drives the rotating disc to rotate through the meshing between the bevel gears, and the fourth bevel gear is driven to rotate through the rotation of the third bevel gear, so that the second connecting rod drives the rotating rod to rotate.
[0008] As a further description of the above technical scheme: the clamp assembly comprises a second motor fixedly connected to one side of the top of the inner wall of the protective shell, a worm fixedly connected to the output end of the second motor, and a fixed ring rotatably connected to the outer ring of the worm, and first fixed rods fixedly connected to the outer ring of the fixed ring.
[0009] By adopting the technical scheme, the rotation of the second motor drives the rotation of the worm, and the rotation of the worm does not cause the rotation of the fixed ring.
[0010] As a further description of the above technical scheme: the worm bottom is fixedly connected with a second fixed block, and the outer wall of the second fixed block is rotatably connected with a tool shank.
[0011] By adopting the technical scheme, the tool shank is fixed by the second fixed block to prevent self-rotation of the tool shank.
[0012] As a further description of the above technical scheme: the first fixed rods are rotatably connected with a rotating shaft, and the outer ring of the rotating shaft is fixedly connected with clamping jaws on both sides.
[0013] By adopting the technical scheme, the rotation of the rotating shaft causes the clamping jaws to clamp the tool shank.
[0014] As a further description of the above technical scheme: the clamping jaws are fixedly connected with rubber pads on one side.
[0015] By adopting the technical scheme, the rubber pads prevent the tool shank from slipping during clamping by the clamping jaws.
[0016] As a further description of the above technical scheme: the outer ring of the rotating shaft is fixedly connected with a worm gear in the middle, and the worm gear is meshingly connected with the worm.
[0017] By adopting the technical scheme, the rotation of the worm can drive the rotation of the worm gear.
[0018] As a further description of the above technical scheme: the top of the fixed ring is fixedly connected with a second fixed rod, and the top of the second fixed rod is fixedly connected with the protective shell.
[0019] By adopting the technical scheme, the second fixed rod connects the protective shell and the fixed ring.
[0020] As a further description of the above technical solution: the other side of the top of the inner wall of the protective shell is fixedly connected with a storage battery.
[0021] By adopting the above technical scheme, the storage battery can provide power for the second motor.
[0022] Compared with the prior art, the utility model has the advantages that:
[0023] 1. The tool shank type manipulator for the numerical control machine tool provided by the utility model can rotate the protective shell and adjust the angle of the protective shell through the rotation of the second bevel gear driven by the servo motor and the rotation of the first bevel gear driven by the rotating disc, the rotation of the fourth bevel gear driven by the first connecting rod and the rotation of the rotating rod, thus increasing the flexibility of the device, easily and quickly adjusting the installation angle of the tool and adapting to different machining requirements and improving machining precision.
[0024] 2. The tool shank type manipulator for the numerical control machine tool provided by the utility model can quickly and efficiently fix the tool shank through the rotation of the worm driven by the second motor and the rotation of the rotating shaft driven by the worm wheel, and can prevent the tool shank from slipping during the rotation of the tool shank driven by the fixing ring. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 It is a perspective view of the utility model;
[0026] Figure 2 It is a main shaft sectional view of the utility model;
[0027] Figure 3 It is an explosion schematic view of the second fixing block of the utility model.
[0028] LEGEND:
[0029] 1. main shaft; 2. first motor; 3. servo motor; 4. first bevel gear; 5. rotating disc; 6. first connecting rod; 7. second bevel gear; 8. third bevel gear; 9. first fixing block; 10. fourth bevel gear; 11. second connecting rod; 12. rotating rod; 13. storage battery; 14. second motor; 15. protective shell; 16. worm; 17. fixing ring; 18. first fixing rod; 19. rotating shaft; 20. worm wheel; 21. clamping jaw; 22. second fixing block; 23. tool shank; 24. rubber pad; 25. second fixing rod. DETAILED DESCRIPTION
[0030] With reference to the drawings in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0031] In order to further understand the content of the present application, the present application will be described in detail with reference to the drawings.
[0032] With reference to Figure 1 and Figure 3 The tool holder type mechanical hand for the numerical control machine tool comprises a main shaft 1 and a fixed ring 17, the top of the fixed ring 17 is fixedly connected with a second fixed rod 25, the top of the second fixed rod 25 is fixedly connected with a protective shell 15, the second fixed rod 25 connects the protective shell 15 and the fixed ring 17, so that the rotation of the worm 16 cannot drive the fixed ring 17 to rotate, and the other side of the top of the inner wall of the protective shell 15 is fixedly connected with a storage battery 13.
[0033] With reference to Figure 2 The top of the inner wall of the main shaft 1 is fixedly connected with a first motor 2, the output end of the first motor 2 is fixedly connected with a first connecting rod 6, the first motor 2 drives the rotation of the first connecting rod 6, the bottom of the first connecting rod 6 is fixedly connected with a third bevel gear 8, one side of the main shaft 1 is fixedly connected with a servo motor 3, the output end of the servo motor 3 is fixedly connected with a second bevel gear 7, the servo motor 3 drives the rotation of the second bevel gear 7, the bottom of the inner wall of the main shaft 1 is penetrated and rotationally connected with a first bevel gear 4, and the first bevel gear 4 is meshingly connected with the second bevel gear 7, through the meshing between the bevel gears, the rotation of the second bevel gear 7 drives the first bevel gear 4 to rotate at the same time, the bottom of the main shaft 1 is rotationally connected with a rotating disc 5, the bottom of the rotating disc 5 is fixedly connected with the first bevel gear 4, the bottom of the rotating disc 5 is fixedly connected with a first fixed block 9, the rotation of the first bevel gear 4 drives the rotating disc 5 to rotate, thereby driving the structure at the bottom of the rotating disc 5 to rotate at the same time, the first fixed block 9 is rotationally connected with a second connecting rod 11, one side of the first fixed block 9 is rotationally connected with a fourth bevel gear 10, the fourth bevel gear 10 is fixedly connected with one side of the outer ring of the second connecting rod 11, and the fourth bevel gear 10 is meshingly connected with the third bevel gear 8, the rotation of the third bevel gear 8 drives the fourth bevel gear 10 to rotate, the rotation of the fourth bevel gear 10 drives a rotating rod 12 to rotate, the outer ring of the second connecting rod 11 is fixedly connected with the rotating rod 12 in the middle, the bottom of the rotating rod 12 is fixedly connected with the protective shell 15, and the inner wall of the protective shell 15 is provided with a clamp assembly.
[0034] With reference to Figure 3The clamp assembly comprises a second motor 14 fixedly connected with one side of the inner wall top of the protective shell 15, a worm 16 fixedly connected with the output end of the second motor 14, the second motor 14 can drive the worm 16 to rotate, the outer ring of the worm 16 is penetrated by and rotationally connected with a fixed ring 17, the outer ring of the fixed ring 17 is fixedly connected with a first fixed rod 18, the first fixed rod 18 fixes the position of a rotating shaft 19, a second fixed block 22 is fixedly connected with the bottom of the worm 16, the second fixed block 22 fixes a tool shank 23, the outer wall of the second fixed block 22 is penetrated by and slidingly connected with the tool shank 23, the tool shank 23 can fix a tool and drive the tool to rotate, the rotating shaft 19 is penetrated by and rotationally connected between the first fixed rods 18, the outer ring of the rotating shaft 19 is fixedly connected with a clamping jaw 21 on both sides, the clamping jaw 21 can clamp the tool shank 23, a rubber pad 24 is fixedly connected with one side of the clamping jaw 21, the rubber pad 24 can increase friction and prevent the tool shank 23 from slipping, and a worm wheel 20 is fixedly connected with the middle of the outer ring of the rotating shaft 19, and the worm wheel 20 is meshingly connected with the worm 16.
[0035] Working principle: first, the first motor 2 drives the rotation of the first connecting rod 6, so that the first connecting rod 6 drives the rotation of the third bevel gear 8, the meshing between the bevel gears drives the rotation of the fourth bevel gear 10, so that the second connecting rod 11 drives the rotation of the rotating rod 12, the rotating rod 12 drives the angular adjustment of the device below, when the tool shank 23 is replaced, first, the second fixed block 22 fixes the tool shank 23, the second motor 14 drives the rotation of the worm 16, in the process of rotation, the meshing between the worm 16 and the worm wheel 20 drives the rotation of the worm wheel 20, in the process of rotation, the rotating shaft 19 and the clamping jaw 21 fix the outer ring of the tool shank 23, so as to complete the fixation of the tool shank 23, when rotation is needed, the servo motor 3 drives the rotation of the second bevel gear 7, so that the second bevel gear 7 drives the rotation of the first bevel gear 4, so as to drive the rotation of the rotating disc 5, so as to drive the rotation of the tool shank 23 below.
[0036] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or action from another entity or action, without necessarily requiring or implying that there is any such actual relationship or order between these entities or actions. Moreover, the terms "comprises", "comprising" or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article or apparatus that includes a list of elements does not only include those elements, but also includes other elements not explicitly listed, or inherent to such a process, method, article or apparatus.
[0037] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A tool holder robot for a numerically controlled machine tool, comprising a spindle (1) and a stationary ring (17), characterized in that: The inner wall top of the main shaft (1) is fixedly connected with a first motor (2), the output end of the first motor (2) is fixedly connected with a first connecting rod (6), the bottom of the first connecting rod (6) is fixedly connected with a third bevel gear (8), one side of the main shaft (1) is fixedly connected with a servo motor (3), the output end of the servo motor (3) is fixedly connected with a second bevel gear (7), the inner wall bottom of the main shaft (1) is rotatably connected with a first bevel gear (4), and the first bevel gear (4) is rotatably connected with the second bevel gear (7), the bottom of the first bevel gear (4) is fixedly connected with a rotating disc (5), the bottom of the rotating disc (5) is fixedly connected with a first fixed block (9), the first fixed block (9) is rotatably connected with a second connecting rod (11), one side of the first fixed block (9) is rotatably connected with a fourth bevel gear (10), the fourth bevel gear (10) is fixedly connected with one side of the outer ring of the second connecting rod (11), and the fourth bevel gear (10) is rotatably connected with the third bevel gear (8), the outer ring of the second connecting rod (11) is fixedly connected with a rotating rod (12), the bottom of the rotating rod (12) is fixedly connected with a protective shell (15), and the inner wall of the protective shell (15) is provided with a clamp assembly.
2. A tool holder type robot for a numerically controlled machine tool according to claim 1, characterized in that: The clamp assembly comprises a second motor (14), the second motor (14) is fixedly connected with one side of the inner wall top of the protective shell (15), the output end of the second motor (14) is fixedly connected with a worm (16), the outer ring of the worm (16) is rotatably connected with a fixed ring (17), and the outer ring of the fixed ring (17) is fixedly connected with a first fixed rod (18).
3. A tool holder type robot for a numerically controlled machine tool according to claim 2, characterized in that: The bottom of the worm (16) is fixedly connected with a second fixed block (22), and the outer wall of the second fixed block (22) is rotatably connected with a tool shank (23).
4. The tool holder type robot for a numerical control machine according to claim 2, wherein: The first fixed rod (18) is rotatably connected with a rotating shaft (19), and the outer ring of the rotating shaft (19) is fixedly connected with a clamping jaw (21) on both sides.
5. A tool holder type robot for a numerically controlled machine tool according to claim 4, characterized in that: One side of the clamping jaw (21) is fixedly connected with a rubber pad (24).
6. A tool holder type robot for a numerically controlled machine tool according to claim 4, characterized in that: The outer ring of the rotating shaft (19) is fixedly connected with a worm wheel (20), and the worm wheel (20) is rotatably connected with the worm (16).
7. The tool holder type robot for a numerical control machine according to claim 1, wherein: The top of the fixed ring (17) is fixedly connected with a second fixed rod (25), and the top of the second fixed rod (25) is fixedly connected with the protective shell (15).
8. The tool holder type robot for a numerical control machine according to claim 1, wherein: The top of the protective shell (15) is fixedly connected with a battery (13) on the other side.