Novel mechanical arm for manufacturing numerical control machine tool
By incorporating a push rod motor and a sliding rod limit block into the robotic arm, the length of the robotic arm can be adjusted, solving the inconvenience caused by a fixed length and improving operational flexibility and work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIANYUNGANG CHUANGJIA INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-07-07
AI Technical Summary
Existing robotic arms typically have fixed lengths for their upper and lower arms, which makes them inconvenient to use when the operating distance is long and cannot adapt to different work needs.
By setting a push rod motor to push the push rod to slide inside the upper and lower arms, and with the design of slide rod and limit block, the length of the robotic arm can be adjusted. Combined with the motor control of the rotation of the upper and lower arms, the flexibility and adaptability are improved.
The robotic arm's length is adjustable, improving its adaptability and flexibility at different operating distances, simplifying the gripper replacement process, and increasing work efficiency.
Smart Images
Figure CN224464250U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of robotic arm technology, and in particular relates to a new type of robotic arm for manufacturing CNC machine tools. Background Technology
[0002] A robotic arm for CNC machine tool manufacturing is an automated device used to assist CNC machine tools in loading and unloading operations. The robotic arm is a complex system with high precision, multiple inputs and outputs, high nonlinearity, and strong coupling. Its high operational flexibility enables it to effectively improve production efficiency and machining accuracy, while reducing labor costs and production time.
[0003] Robotic arms are typically designed to mimic the human arm, consisting of a large arm and a forearm. These two arms work together to perform tasks such as gripping and moving objects. However, the large arm and forearm of existing robotic arms are usually of fixed length. This means that when the operating distance is long, it is necessary to add tracks for movement or replace the robotic arm with a larger one. This makes them inconvenient to use and unable to adapt to different work needs. Utility Model Content
[0004] The purpose of this invention is to provide a novel robotic arm for CNC machine tool manufacturing. By setting a push rod, specifically by activating a push rod motor, the push rod motor pushes the push rod to slide inside the upper arm and forearm. At the same time, a sliding rod also slides inside the upper arm and forearm. The limiting block at the bottom of the sliding rod slides inside the limiting rod, which can prevent the sliding rod from detaching from the upper arm and forearm. This allows for free control of the length of the robotic arm, making it convenient to use. It solves the problem that the upper arm and forearm of existing robotic arms are usually of fixed length, which makes them inconvenient to use when the operating distance is long.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model relates to a novel robotic arm for CNC machine tool manufacturing, comprising a base and grippers. The base includes a large arm and a small arm, both of which have push rods inside. Slide rods are located at the four corners of the large and small arms near the push rods. The top of the push rod located inside the large arm is fixedly connected to the bottom of the upper large arm, and the bottom of the push rod located inside the large arm is slidably connected to the top of the lower large arm. A support plate is fixedly connected inside both the large and small arms. A push rod motor is fixedly connected to the top of the support plate, and the top output end of the push rod motor is fixedly connected to the bottom of the push rod. Limit rods are fixedly connected to the four corners of the top of the support plate, and limit blocks are fixedly connected to the bottom of the slide rods. The outer surface of the limit blocks is slidably connected to the inner wall of the limit rods. By activating the push rod motor, the push rods are displaced, thereby controlling the length of the robotic arm and effectively improving its adaptability.
[0007] Furthermore, a rotating shaft is rotatably connected to the top of the base, and a motor is fixedly connected to the bottom of the base. The top output end of the motor is fixedly connected to the bottom of the rotating shaft, and a second motor is fixedly connected to the top of the rotating shaft. A second rotating shaft is provided on the left side of the second motor. Starting the first motor can control the rotation of the first rotating shaft, thereby enabling the entire robotic arm to rotate horizontally and improving the flexibility of the robotic arm.
[0008] Furthermore, the left output end of motor two is fixedly connected to the right side of rotating shaft two, the bottom of the upper arm is fixedly connected to the outer surface of rotating shaft two, motor three is fixedly connected to the top of rotating shaft two, rotating shaft three is provided on the right side of motor three, the right output end of motor three is fixedly connected to the left side of rotating shaft three, and the top of the forearm is fixedly connected to the outer surface of rotating shaft three. Motor two and motor three control the rotation of rotating shaft two and rotating shaft three, thereby controlling the rotation of the upper arm and forearm of the robotic arm, further improving the flexibility of the robotic arm.
[0009] Furthermore, a turntable is rotatably connected to the bottom of the forearm, and a motor is fixedly connected to the inner wall of the bottom of the forearm. The bottom output end of the motor is fixedly connected to the top of the turntable. Starting the motor can control the turntable to rotate, thereby controlling the gripper to rotate, which further improves the flexibility of the robotic arm.
[0010] Furthermore, a lock nut block is fixedly connected to the bottom of the turntable, a button is slidably connected to the top of the lock nut block, and a latch is fixedly connected to the bottom of the button via a connecting rod. The latch is slidably connected to the inside of the lock nut block, and three springs are fixedly connected to the bottom of the latch. By pressing the button, the latch is displaced, and the spring force allows the latch to quickly return to its original position after being released, thus improving the stability of the structure.
[0011] Furthermore, the gripper includes a locking block, the front of the locking nut block contacts the locking block, and a second locking buckle is fixedly connected to the back of the locking block. The front of the locking nut block has a hole, and the second locking buckle is inserted into the hole on the front of the locking nut block. The outer surface of the first locking buckle contacts the outer surface of the second locking buckle. The gripper is fixed by the contact between the second locking buckle and the first locking buckle, which allows for faster gripper replacement and improves work efficiency.
[0012] Furthermore, a support plate two is fixedly connected to the front of the locking block by bolts. Electric push rods are fixedly connected to the left and right sides of the support plate two. Elastic metal sheets are fixedly connected to opposite sides of the two electric push rods. When the elastic metal sheets clamp the object, they can avoid excessive clamping force that could damage the object and improve the stability of the device.
[0013] This utility model has the following beneficial effects:
[0014] 1. This utility model, by setting a push rod, specifically by starting the push rod motor, causes the push rod motor to push the push rod to slide inside the upper arm and forearm. At the same time, the slide rod also slides inside the upper arm and forearm. The limiting block at the bottom of the slide rod slides inside the limiting rod, which can prevent the slide rod from detaching from the upper arm and forearm. This allows for free control of the length of the robotic arm, making it convenient to use and improving its adaptability.
[0015] 2. This utility model features a lock nut block. Specifically, when the gripper needs to be replaced, simply press the button to slide it inside the lock nut block. At the same time, the first latch slides downward, disengaging from the second latch. The gripper can then be removed by pulling it downward. Similarly, during installation, press the button to insert the second latch into the hole on the front of the lock nut block. When the button is released, the spring force causes the outer surface of the first latch to make tight contact with the outer surface of the second latch, thus fixing the gripper. This makes it easier and faster to replace the gripper, improving work efficiency.
[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the internal structure of the base of this utility model;
[0020] Figure 3 This is a schematic diagram of the internal structure of the boom of this utility model;
[0021] Figure 4 This is a schematic diagram of the gripper structure of this utility model;
[0022] Figure 5 This is a schematic diagram of the locking two-plug structure of this utility model;
[0023] Figure 6 This is a schematic diagram of the internal structure of the lock nut block of this utility model.
[0024] The attached diagram lists the components represented by each number as follows:
[0025] 1. Base; 11. Rotating shaft one; 111. Motor one; 112. Motor two; 113. Rotating shaft two; 12. Main arm; 121. Push rod; 122. Slide rod; 123. Support plate one; 124. Push rod motor; 125. Limiting rod; 126. Limiting block; 13. Motor three; 131. Rotating shaft three; 14. Forearm; 141. Turntable; 142. Motor four; 15. Locking nut block; 151. Button; 152. Locking buckle one; 153. Spring; 2. Gripper; 21. Locking buckle block; 211. Locking buckle two; 22. Support plate two; 221. Electric push rod; 222. Elastic metal sheet. Detailed Implementation
[0026] 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 scope of protection of the present utility model.
[0027] Please see Figure 1-6 As shown, this utility model is a novel robotic arm for CNC machine tool manufacturing, including a base 1 and grippers 2. The base 1 includes a large arm 12 and a small arm 14. Push rods 121 are installed inside both the large arm 12 and the small arm 14. Sliding rods 122 are installed at the four corners of the large arm 12 and the small arm 14 near the push rods 121. The top of the push rod 121 inside the large arm 12 is fixedly connected to the bottom of the upper large arm 12, and the bottom of the push rod 121 inside the large arm 12 is slidably connected to the top of the lower large arm 12. A support plate 123 is fixedly connected inside both the large arm 12 and the small arm 14. A push rod motor 124 is fixedly connected to the top of the support plate 123. The top output end of the push rod motor 124 is connected to the push rod 121. 21. The bottom is fixedly connected, and the four corners of the top of the support plate 123 are fixedly connected to the limit rods 125. The bottom of the slide rod 122 is fixedly connected to the limit block 126. The outer surface of the limit block 126 is slidably connected to the inner wall of the limit rod 125. By setting the push rod 121, specifically by starting the push rod motor 124, the push rod motor 124 pushes the push rod 121 to slide inside the upper arm 12 and the lower arm 14. At the same time, the slide rod 122 also slides inside the upper arm 12 and the lower arm 14. The limit block 126 at the bottom of the slide rod 122 slides inside the limit rod 125, which can prevent the slide rod 122 from detaching from the upper arm 12 and the lower arm 14. In this way, the length of the robotic arm can be freely controlled, making it convenient to use and improving its adaptability.
[0028] The top of the base 1 is rotatably connected to a rotating shaft 11, the bottom of the base 1 is fixedly connected to a motor 111, the top output end of the motor 111 is fixedly connected to the bottom of the rotating shaft 111, the top of the rotating shaft 111 is fixedly connected to a motor 2 112, and the left side of the motor 2 112 is provided with a rotating shaft 2 113.
[0029] The left output end of motor 2 112 is fixedly connected to the right side of shaft 2 113. The bottom of the upper arm 12 is fixedly connected to the outer surface of shaft 2 113. Motor 3 13 is fixedly connected to the top of shaft 2 113. Shaft 3 131 is set on the right side of motor 3 13. The right output end of motor 3 13 is fixedly connected to the left side of shaft 3 131. The top of the forearm 14 is fixedly connected to the outer surface of shaft 3 131.
[0030] A turntable 141 is rotatably connected to the bottom of the forearm 14, and a motor 142 is fixedly connected to the inner wall of the bottom of the forearm 14. The bottom output end of the motor 142 is fixedly connected to the top of the turntable 141.
[0031] A lock nut block 15 is fixedly connected to the bottom of the turntable 141. A button 151 is slidably connected to the top of the lock nut block 15. A latch 152 is fixedly connected to the bottom of the button 151 via a connecting rod. The latch 152 is slidably connected to the inside of the lock nut block 15. Three springs 153 are fixedly connected to the bottom of the latch 152.
[0032] The gripper 2 includes a locking block 21. The front of the locking nut block 15 contacts the locking block 21, and a second locking buckle 211 is fixedly connected to the back of the locking block 21. The front of the locking nut block 15 has a hole, and the second locking buckle 211 is inserted into the hole on the front of the locking nut block 15. The outer surface of the first locking buckle 152 contacts the outer surface of the second locking buckle 211. By setting the locking nut block 15, when the gripper 2 needs to be replaced, simply press the button 151 to make it slide inside the locking nut block 15. At the same time, the first locking buckle 152 slides down, causing the first locking buckle 152 to disengage from the second locking buckle 211. The gripper 2 can then be removed by pulling it down. Similarly, during installation, press the button 151 to insert the second locking buckle 211 into the hole on the front of the locking nut block 15. When the button is released, due to the elastic force of the spring 153, the outer surface of the first locking buckle 152 and the outer surface of the second locking buckle 211 are in close contact, thus fixing the gripper 2. This makes it easier and faster to replace the gripper 2 and improves work efficiency.
[0033] The locking block 21 is fixedly connected to the support plate 22 by bolts. The support plate 22 is fixedly connected to the left and right sides of the electric push rod 221. The two electric push rods 221 are fixedly connected to the opposite sides of each other. The elastic metal sheet 222 is fixedly connected to each other.
[0034] A specific application of this embodiment is as follows: In use, the first motor 111 drives the first shaft 11 to rotate on the top of the base 1, controlling the horizontal rotation direction of the entire robotic arm. The second motor 112 and the third motor 13 are started to control the rotation of the second shaft 113 and the third shaft 131, thereby controlling the longitudinal rotation of the upper arm 12 and the lower arm 14. The fourth motor 142 drives the turntable 141 to rotate, controlling the rotation direction of the gripper 2. Then, the two electric push rods 221 are started to bring the two elastic metal plates 222 closer together to clamp the object for loading and unloading operations. When the object is far away, the push rod motor 124 is started to push the push rod 121 to slide inside the upper arm 12 and the lower arm 14. At the same time, the sliding rod 122 also slides inside the upper arm 12 and the lower arm 14. The limiting block 126 at the bottom of the slide bar 122 slides inside the limiting rod 125, which can prevent the slide bar 122 from detaching from the upper arm 12 and the lower arm 14. This allows for free control of the length of the robotic arm. When it is necessary to replace the gripper 2, simply press the button 151 to make it slide inside the locking nut block 15. At the same time, the locking buckle 152 slides down, causing the locking buckle 152 to disengage from the locking buckle 211. Then, pull the gripper 2 down to remove it. Similarly, during installation, press the button 151 to insert the locking buckle 211 into the hole on the front of the locking nut block 15. When you release the button, due to the elastic force of the spring 153, the outer surface of the locking buckle 152 and the outer surface of the locking buckle 211 make tight contact, thus fixing the gripper 2. This makes it easier and faster to replace the gripper 2 and improves work efficiency.
[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A novel robotic arm for manufacturing CNC machine tools, characterized in that: The device includes a base (1) and grippers (2). The base (1) includes a large arm (12) and a small arm (14). A push rod (121) is provided inside both the large arm (12) and the small arm (14). Slide rods (122) are provided at the four corners of the large arm (12) and the small arm (14) near the push rods (121). The top of the push rod (121) inside the large arm (12) is fixedly connected to the bottom of the large arm (12) above it, and the bottom of the push rod (121) inside the large arm (12) is fixedly connected to the top of the large arm (12) below it. The upper arm (12) and the lower arm (14) are both fixedly connected to a support plate (123). A push rod motor (124) is fixedly connected to the top of the support plate (123). The top output end of the push rod motor (124) is fixedly connected to the bottom of the push rod (121). Limiting rods (125) are fixedly connected to the four corners of the top of the support plate (123). A limiting block (126) is fixedly connected to the bottom of the slide rod (122). The outer surface of the limiting block (126) is slidably connected to the inner wall of the limiting rod (125).
2. The novel robotic arm for CNC machine tool manufacturing according to claim 1, characterized in that, The base (1) is rotatably connected to a rotating shaft (11) at the top, and a motor (111) is fixedly connected to the bottom of the base (1). The top output end of the motor (111) is fixedly connected to the bottom of the rotating shaft (11), and a motor (112) is fixedly connected to the top of the rotating shaft (11). A rotating shaft (113) is provided on the left side of the motor (112).
3. The novel robotic arm for CNC machine tool manufacturing according to claim 2, characterized in that, The left output end of the second motor (112) is fixedly connected to the right side of the second shaft (113). The bottom of the upper arm (12) is fixedly connected to the outer surface of the second shaft (113). The top of the second shaft (113) is fixedly connected to the third motor (13). The right side of the third motor (13) is provided with the third shaft (131). The right output end of the third motor (13) is fixedly connected to the left side of the third shaft (131). The top of the forearm (14) is fixedly connected to the outer surface of the third shaft (131).
4. The novel robotic arm for CNC machine tool manufacturing according to claim 3, characterized in that, The bottom of the forearm (14) is rotatably connected to a turntable (141), and the inner wall of the bottom of the forearm (14) is fixedly connected to a motor (142). The bottom output end of the motor (142) is fixedly connected to the top of the turntable (141).
5. The novel robotic arm for CNC machine tool manufacturing according to claim 4, characterized in that, The turntable (141) is fixedly connected to a lock nut block (15) at the bottom. A button (151) is slidably connected to the top of the lock nut block (15). A latch (152) is fixedly connected to the bottom of the button (151) via a connecting rod. The latch (152) is slidably connected to the inside of the lock nut block (15). Three springs (153) are fixedly connected to the bottom of the latch (152).
6. The novel robotic arm for CNC machine tool manufacturing according to claim 5, characterized in that, The front of the lock nut block (15) is in contact with the latch block (21), and the back of the latch block (21) is fixedly connected to the second latch (211). The front of the lock nut block (15) has a hole, and the second latch (211) is inserted into the hole on the front of the lock nut block (15). The outer surface of the first latch (152) is in contact with the outer surface of the second latch (211).
7. The novel robotic arm for CNC machine tool manufacturing according to claim 6, characterized in that, The locking block (21) is fixedly connected to the support plate two (22) by bolts on the front. The support plate two (22) is fixedly connected to the electric push rod (221) on both the left and right sides. The two electric push rods (221) are fixedly connected to the elastic metal sheet (222) on opposite sides.