Feeding and discharging device of gantry milling and grinding machine

Abstract

The utility model discloses a feeding and discharging device of a gantry milling and grinding machine. The feeding and discharging device comprises a mechanical arm body, a clamping assembly, a guiding assembly and a switching assembly. The clamping assembly is arranged on the mechanical arm body; the clamping assembly comprises a U-shaped base, a servo air cylinder, a movable plate, a connecting plate, a rotating plate, a gear, a rack and a clamping block. The U-shaped seat is fixedly arranged at the output end of the mechanical arm body; the servo cylinder is fixedly arranged on the U-shaped seat; the movable plate is fixedly connected with the piston end of the servo cylinder; the two connecting plates are symmetrically and rotationally arranged at the two ends of the movable plate through rotating shafts A; one end of the rotating plate is rotationally arranged on the connecting plate through a rotating shaft B, and the other end of the rotating plate is connected with the inner wall of the U-shaped seat through a rotating shaft C; the gear is fixedly arranged on the rotating plate; the two racks are symmetrically arranged in the U-shaped seat through the guide assembly; the clamping block is connected with the rack through the switching assembly. The feeding and discharging device of the gantry milling and grinding machine is simple and reasonable in structure, ingenious in design, capable of rapidly and conveniently feeding and discharging workpieces and high in machining efficiency.

Description

Technical Field

[0001] This utility model relates to the field of gantry milling and grinding machine technology, and specifically to a loading and unloading device for a gantry milling and grinding machine. Background Technology

[0002] A gantry milling and grinding machine is a high-precision surface machining machine tool used for materials such as metals and cemented carbide. It has milling and grinding functions and belongs to the gantry type of machining equipment. It is mainly used for high-precision surface machining, such as machining of planes, convex, concave and irregular surfaces.

[0003] The loading and unloading device disclosed in Chinese Utility Model Patent Publication No. CN216763515U includes a base, a lifting assembly, and a gripping assembly. The lifting assembly is mounted on the base and can be raised and lowered vertically. The gripping assembly is connected to the lifting assembly and includes at least two opposing pallets for lifting materials. The two pallets can move closer to or further apart horizontally. This loading and unloading device can lift and move plate-shaped materials using pallets, which reduces the risk of material damage compared to traditional methods. It is particularly effective for loading and unloading fragile materials such as ultra-thin glass, significantly improving product yield and processing efficiency.

[0004] When machining workpieces using a gantry milling machine, a loading and unloading device is required. However, existing loading and unloading devices have a fixed structure and are large in size, making it inconvenient to load and unload workpieces quickly and easily. This not only reduces the machining efficiency of the workpieces but also affects the effectiveness of the loading and unloading device. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of the existing technology by providing a loading and unloading device for a gantry milling machine, so as to achieve the purpose of loading and unloading workpieces quickly and conveniently.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a loading and unloading device for a gantry milling machine, comprising a robotic arm body for loading and unloading the gantry milling machine, a clamping assembly, a guiding assembly, and a switching assembly; the robotic arm body is fixed to the gantry milling machine by bolts; the clamping assembly is arranged on the robotic arm body; the clamping assembly includes a U-shaped seat, a servo cylinder, a movable plate, a connecting plate, a rotating plate, gears, a rack, and a clamping block for clamping workpieces of the gantry milling machine; the U-shaped seat is fixed to the output end of the robotic arm body; the servo cylinder... The servo cylinder is fixed to the U-shaped base via a cylinder seat, with the piston end of the servo cylinder extending through the U-shaped base into the interior; the movable plate is fixedly connected to the piston end of the servo cylinder; two connecting plates are symmetrically rotatably mounted on both ends of the movable plate via a rotating shaft A; one end of the rotating plate is rotatably mounted on the connecting plate via a rotating shaft B, and the other end of the rotating plate is rotatably connected to the inner wall of the U-shaped base via a rotating shaft C; the gear is fixed to the rotating plate; two racks are symmetrically mounted inside the U-shaped base via a guide assembly and mesh with the gear for rotation; the gripping block is connected to the racks via a switching assembly.

[0007] Preferably, the opposing surfaces of the two gripping blocks are arc-shaped, and the side of the two gripping blocks facing away from each other is a plane.

[0008] Preferably, the guide assembly includes a guide groove and a guide block; at least one guide groove is provided in the U-shaped seat; the guide block is slidably disposed in the guide groove, and the end of the guide block passes through the guide groove and is fixedly connected to the rack.

[0009] Preferably, the switching assembly includes a fixed block, a sliding groove, a sliding rod, and a spring; the fixed block is fixedly mounted on a rack; the clamping block has a sliding groove on the side near the fixed block; the sliding rod is slidably disposed in the sliding groove, and the end of the sliding rod passes through the sliding groove and is fixedly connected to the fixed block; the spring is sleeved on the sliding rod, and both ends of the spring contact the inner wall of the sliding groove and the sliding rod, respectively.

[0010] Preferably, the sliding rod has a T-shaped structure that is smaller at the top and larger at the bottom.

[0011] Preferably, the switching component further includes a positioning groove and a positioning block; the fixing block has at least one positioning groove on the side near the clamping block; the positioning block is inserted into the positioning groove, and the end of the positioning block passes through the positioning groove and is fixedly connected to the clamping block.

[0012] Preferably, the positioning block has a frustum-shaped structure with a smaller top and a larger bottom.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, by setting up a clamping component and a guiding component, fixes the robotic arm body to a gantry milling machine with bolts. Then, the servo cylinder is activated, causing the piston rod of the servo cylinder to extend, causing the movable plate to move and rotate with the connecting plate via rotating shaft A. The connecting plate rotates with the rotating plate via rotating shaft B, and the rotating plate rotates within the U-shaped seat via rotating shaft C. This causes the gear to rotate and mesh with the rack, causing the two racks to move away from each other through the guide block until the clamping blocks move to the appropriate position. Then, the robotic arm body moves the two clamping blocks to the vicinity of the workpiece. Subsequently, the servo cylinder is controlled to retract, causing the two racks to move relative to each other through the guide block until the opposing surfaces of the two clamping blocks contact the workpiece. Compared with the prior art, this utility model has a simple and reasonable structure, ingenious design, and can quickly and conveniently load and unload workpieces with high processing efficiency.

[0015] 2. This utility model, by setting a switching component, allows the clamping block to be pulled according to the shape of the workpiece to be clamped, causing the sliding rod to slide in the sliding groove. This causes the spring to contract under force, allowing the positioning block to slide in the positioning groove until the positioning block moves out of the positioning groove. At this point, the clamping block is rotated 180 degrees and then released. Under the action of the spring, the clamping block will move towards the fixed block until its top surface contacts the bottom surface of the fixed block. At this point, the top surface of the positioning block contacts the top wall of the positioning groove, making it convenient for this utility model to clamp both square and round workpieces, thereby improving the applicability of this utility model. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0018] Figure 3 This is a sectional view of the clamping component of this utility model.

[0019] Figure 4 This is a split sectional view of the switching component of this utility model;

[0020] Figure 5 For the present utility model Figure 2 Enlarged diagram of point A in the middle.

[0021] In the picture:

[0022] 1. Robotic arm body; 2. Gripping assembly; 3. Guiding assembly; 4. Switching assembly;

[0023] 201. U-shaped base; 202. Servo cylinder; 203. Movable plate; 204. Connecting plate; 205. Rotating plate; 206. Gear; 207. Rack; 208. Clamping block;

[0024] 301. Guide groove; 302. Guide block;

[0025] 401. Fixed block; 402. Sliding groove; 403. Sliding rod; 404. Spring; 405. Positioning groove; 406. Positioning block. 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 protection scope of the present utility model.

[0027] Please see Figures 1 to 5 This utility model provides a technical solution: a loading and unloading device for a gantry milling machine, comprising a robotic arm body 1 for loading and unloading the gantry milling machine, a clamping assembly 2, a guiding assembly 3, and a switching assembly 4; the robotic arm body 1 is fixed to the gantry milling machine by bolts; the clamping assembly 2 is arranged on the robotic arm body 1; the clamping assembly 2 includes a U-shaped seat 201, a servo cylinder 202, a movable plate 203, a connecting plate 204, a rotating plate 205, a gear 206, a rack 207, and a clamping block 208 for clamping workpieces of the gantry milling machine; the U-shaped seat 201 is fixed to the output end of the robotic arm body 1; the servo cylinder 202 is fixed to the U-shaped seat 201 by a cylinder seat, and the piston end of the servo cylinder 202... The system extends through the U-shaped base 201 into the interior; the movable plate 203 is fixedly connected to the piston end of the servo cylinder 202; two connecting plates 204 are symmetrically mounted on both ends of the movable plate 203 via rotating shaft A; one end of the rotating plate 205 is rotatably mounted on the connecting plate 204 via rotating shaft B, and the other end of the rotating plate 205 is rotatably connected to the inner wall of the U-shaped base 201 via rotating shaft C; a gear 206 is fixedly mounted on the rotating plate 205; two racks 207 are symmetrically mounted inside the U-shaped base 201 via guide assembly 3 and mesh with the gear 206; a gripping block 208 is connected to the rack 207 via switching assembly 4; the opposing surfaces of the two gripping blocks 208 are arc-shaped surfaces, and the side of the two gripping blocks 208 facing away from each other is a plane;

[0028] The guide assembly 3 includes a guide groove 301 and a guide block 302; two guide grooves 301 are symmetrically opened on both sides of the inner wall of the U-shaped seat 201; the guide block 302 is slidably disposed in the guide groove 301, and the end of the guide block 302 passes through the guide groove 301 and is fixedly connected to the rack 207.

[0029] This invention, by setting up a clamping assembly 2 and a guiding assembly 3, fixes the robotic arm body 1 to a gantry milling machine with bolts. Then, the servo cylinder 202 is activated, causing the piston rod of the servo cylinder 202 to extend, causing the movable plate 203 to move and rotate with the connecting plate 204 via the rotating shaft A. The connecting plate 204 rotates with the rotating plate 205 via the rotating shaft B. The rotating plate 205 rotates within the U-shaped seat 201 via the rotating shaft C, causing the gear 206 to rotate and mesh with the rack 207. The two racks 207 then rotate through the guide block 302. The gripping blocks 208 are moved away from each other until they reach a suitable position. Then, the robotic arm body 1 moves the two gripping blocks 208 around the workpiece. Subsequently, the servo cylinder 202 is controlled to retract its piston rod, causing the two racks 207 to move relative to each other through the guide block 302 until the opposing surfaces of the two gripping blocks 208 contact the workpiece. Compared with the prior art, this utility model has a simple and reasonable structure, ingenious design, and can quickly and conveniently load and unload workpieces with high processing efficiency.

[0030] In a preferred embodiment, the switching component 4 includes a fixed block 401, a sliding groove 402, a sliding rod 403, a spring 404, a positioning groove 405, and a positioning block 406; the fixed block 401 is fixedly mounted on the rack 207; the clamping block 208 has a sliding groove 402 on the side near the fixed block 401; the sliding rod 403 is slidably disposed in the sliding groove 402, and the end of the sliding rod 403 passes through the sliding groove 402 and is fixedly connected to the fixed block 401; the spring 404 is sleeved on the sliding rod 403, and both ends of the spring 404 contact the inner wall of the sliding groove 402 and the sliding rod 403 respectively; the sliding rod 403 has a T-shaped structure that is smaller at the top and larger at the bottom to facilitate the restriction of the position of the sliding rod 403; the fixed block 401 has two symmetrical positioning grooves 405 on the side near the clamping block 208; the positioning block 404... The positioning block 406 is inserted into the positioning groove 405, and its end passes through the positioning groove 405 and is fixedly connected to the clamping block 208. The positioning block 406 has a frustum-shaped structure with a smaller top and a larger bottom, which not only facilitates the insertion of the positioning block 406 into the positioning groove 405, but also increases the contact area between the positioning block 406 and the clamping block 208, and improves the connection strength between the fixing block 401 and the clamping block 208. When the positioning block 406 moves out of the positioning groove 405, the spring 404 can continue to contract. When the clamping block 208 contacts the bottom surface of the fixing block 401 with its top surface, the top surface of the positioning block 406 contacts the top wall of the positioning groove 405. When the two clamping blocks 208 are in contact, the movable plate 203 and the connecting plate 204 are in a horizontal state. When the clamping block 208 moves to its maximum position, the guide block 302 is still in contact with the guide groove 301.

[0031] This invention, by setting a switching component 4, allows for the clamping of workpieces of the required shape. Pulling the clamping block 208 causes the sliding rod 403 to slide within the sliding groove 402, causing the spring 404 to contract and the positioning block 406 to slide within the positioning groove 405 until the positioning block 406 moves out of the positioning groove 405. At this point, rotating the clamping block 208 180 degrees and releasing it causes the spring 404 to move it closer to the fixing block 401 until its top surface contacts the bottom surface of the fixing block 401. Simultaneously, the top surface of the positioning block 406 contacts the top wall of the positioning groove 405. This allows the invention to clamp both square and round workpieces, thus improving its applicability.

[0032] Working Principle: In operation, firstly, the robotic arm body 1 is fixed to the gantry milling machine with bolts. Then, according to the shape of the workpiece to be clamped, the clamping block 208 is pulled, causing the sliding rod 403 to slide within the sliding groove 402. This causes the spring 404 to contract, allowing the positioning block 406 to slide within the positioning groove 405 until it moves out of the groove. At this point, the clamping block 208 is rotated 180 degrees and then released. Under the action of the spring 404, the clamping block 208 moves closer to the fixed block 401 until its top surface contacts the bottom surface of the fixed block 401. Simultaneously, the top surface of the positioning block 406 contacts the top wall of the positioning groove 405. Finally, the servo cylinder 202 is activated, causing the piston rod of the servo cylinder 202 to... The extension begins, causing the movable plate 203 to move and rotate with the connecting plate 204 via the rotating shaft A. The connecting plate 204 then rotates with the rotating plate 205 via the rotating shaft B. The rotating plate 205 rotates within the U-shaped seat 201 via the rotating shaft C, causing the gear 206 to rotate and mesh with the rack 207. This causes the two racks 207 to move away from each other via the guide block 302 until the gripping blocks 208 move to the appropriate position. Then, the robotic arm body 1 moves the two gripping blocks 208 around the workpiece. Subsequently, the servo cylinder 202 is controlled to retract, causing the two racks 207 to move relative to each other via the guide block 302 until the opposing surfaces of the two gripping blocks 208 contact the workpiece.

[0033] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A loading and unloading device of a gantry milling and grinding machine, characterized in that, The application relates to a mechanical arm body (1) for feeding and discharging a gantry milling and grinding machine, a clamping assembly (2), a guide assembly (3) and a switching assembly (4); the mechanical arm body (1) is fixed on the gantry milling and grinding machine through bolts; the clamping assembly (2) is arranged on the mechanical arm body (1); the clamping assembly (2) comprises a U-shaped seat (201), a servo cylinder (202), a movable plate (203), a connecting plate (204), a rotating plate (205), a gear (206), a rack (207) and a clamping block (208) for clamping a workpiece of the gantry milling and grinding machine; the U-shaped seat (201) is fixed on the output end of the mechanical arm body (1); the servo cylinder (202) is fixed on the U-shaped seat (201) through a cylinder seat, and the piston end of the servo cylinder (202) extends to the inside through the U-shaped seat (201); the movable plate (203) is fixedly connected with the piston end of the servo cylinder (202); two connecting plates (204) are symmetrically arranged on the two ends of the movable plate (203) through rotating shafts A; one end of the rotating plate (205) is rotatably arranged on the connecting plate (204) through a rotating shaft B, and the other end of the rotating plate (205) is rotatably connected with the inner wall of the U-shaped seat (201) through a rotating shaft C; the gear (206) is fixed on the rotating plate (205); two racks (207) are symmetrically arranged in the U-shaped seat (201) through the guide assembly (3) and are rotatably meshed with the gear (206); the clamping block (208) is connected with the rack (207) through the switching assembly (4).

2. The loading and unloading device of a gantry milling and grinding machine according to claim 1, characterized in that, The opposite faces of the two clamping blocks (208) are arc faces, and the sides, away from each other, of the two clamping blocks (208) are planes.

3. The loading and unloading device of a gantry milling and grinding machine according to claim 2, characterized in that, The guide assembly (3) comprises a guide groove (301) and a guide block (302); at least one guide groove (301) is formed in the U-shaped seat (201); the guide block (302) is slidably arranged in the guide groove (301), and the end of the guide block (302) is fixedly connected with the rack (207) through the guide groove (301).

4. The loading and unloading device of a gantry milling and grinding machine according to claim 3, characterized in that, The switching assembly (4) comprises a fixed block (401), a sliding groove (402), a sliding rod (403) and a spring (404); the fixed block (401) is fixed on the rack (207); the clamping block (208) is provided with the sliding groove (402) on the side close to the fixed block (401); the sliding rod (403) is slidably arranged in the sliding groove (402), and the end of the sliding rod (403) is fixedly connected with the fixed block (401) through the sliding groove (402); the spring (404) is sleeved on the sliding rod (403), and the two ends of the spring (404) are in contact with the inner wall of the sliding groove (402) and the sliding rod (403) respectively.

5. The loading and unloading device of a gantry milling and grinding machine according to claim 4, characterized in that, The sliding rod (403) is in a T-shaped structure with the upper part being small and the lower part being large.

6. The loading and unloading device of a gantry milling and grinding machine according to claim 4, characterized in that, The switching assembly (4) further comprises a positioning slot (405) and a positioning block (406); at least one positioning slot (405) is formed on the side of the fixing block (401) close to the clamping block (208); the positioning block (406) is inserted into the positioning slot (405), and the end of the positioning block (406) is fixedly connected with the clamping block (208) through the positioning slot (405).

7. The loading and unloading device of a gantry milling and grinding machine according to claim 6, characterized in that, The positioning block (406) is a circular truncated cone structure which is small at the top and large at the bottom.

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