A numerical control machine tool feeding and discharging device

Abstract

The utility model discloses a kind of numerical control machine tool blanking device, belong to machine tool processing auxiliary equipment.The walking mechanism in the device is set on conveying crossbeam by slide rail, conveying crossbeam is equipped with rack and gear on walking mechanism meshing to realize walking;Walking mechanism is equipped with supporting wheel frame, supporting wheel frame includes two pairs of supporting wheel groups of layered and upper and lower parallel arrangement, for the feeding of bar stock, supporting transfer;The side of material rack in upper bin is provided with step-by-step lifting mechanism to realize bar stock transfer to supporting wheel group, the step-by-step lifting mechanism includes first-stage lifting platform and second-stage lifting platform, first-stage lifting platform and second-stage lifting platform can be moved up and down on the side of the material rack by cylinder and guide slide rail;Blanking bin and upper bin are provided with same structure, for the blanking of workpiece.The utility model realizes the automatic feeding of bar stock, can be automatically transferred to numerical control machine tool to carry out processing.

Description

Technical Field

[0001] This utility model belongs to the field of bar stock processing technology, specifically relating to a loading and unloading device for a CNC machine tool. Background Technology

[0002] With the development of industrial automation control technology, CNC machine tools play a significant role in industrial manufacturing. However, for material loading, automation and efficiency improvement are crucial factors affecting processing efficiency. For example, manual handling of large metal bars is labor-intensive and prone to causing injuries such as crushing and slippage. For unloading after processing, the bars are cooled by oil during the process, leaving some oil residue on their surface, making them difficult to handle manually and posing a high risk of accidents. Therefore, to address the automation problem of adaptable loading and unloading for bars and longer materials, a CNC machine tool loading and unloading device is proposed.

[0003] Currently, there are many automated loading and unloading devices for CNC machine tools on the market, including those that use ball bearings to transfer bar stock, robot gripping, or overall lifting of the material table. Compared with this utility model, these devices lack automation for individual feeding and do not improve efficiency. That is, the processed bar stock must be fed out first before the bar stock to be added can be clamped and fed in, resulting in long bar stock changing time and wasted energy. Utility Model Content

[0004] The present invention aims to provide a loading and unloading device for CNC machine tools to improve the automation and efficiency of bar stock processing.

[0005] Technical solution: A CNC machine tool loading and unloading device, including a traveling mechanism, a loading bin and an unloading bin, wherein the traveling mechanism is mounted on a conveying beam via a slide rail, and the conveying beam is provided with a rack that meshes with a gear on the traveling mechanism to achieve travel;

[0006] The traveling mechanism is equipped with a roller frame, which includes two pairs of rollers arranged in layers and parallel to each other, for supporting and transferring the bar stock during loading and unloading.

[0007] The feeding hopper includes a feeding rack, and a step-by-step lifting mechanism is provided on one side of the feeding rack to transfer the bar stock to the roller assembly. The step-by-step lifting mechanism includes a primary lifting platform and a secondary lifting platform. The primary lifting platform and the secondary lifting platform can move up and down on one side of the feeding rack through cylinders and guide rails.

[0008] The feeding hopper is equipped with a feeding rack. The first feeding mechanism and the second feeding mechanism are arranged on one side of the feeding rack in stages. The second feeding mechanism and the first feeding mechanism are respectively arranged on one side of the feeding rack through cylinders and guide rails and can move up and down.

[0009] Furthermore, the walking mechanism includes a motor for driving the gear to rotate, and the gear and motor are enclosed by a protective cover.

[0010] Furthermore, the roller support frame includes a limiting adjustment beam, which is used to adjust and fix two pairs of roller supports, and the limiting adjustment beam is provided with a fixing groove for the mating bolts, and the crossbeam on which the roller supports are mounted is provided with a scale.

[0011] Furthermore, a movable limiting plate is provided on one side of the material rack in the feeding hopper, and the first-level lifting platform and the second-level lifting platform are provided with downwardly inclined material-pushing blocks. The end of the material-pushing block away from the material rack is lower than the other end, and a blocking block is provided.

[0012] The primary and secondary lifting platforms are each equipped with a first guide rail and a lifting cylinder for controlling their lifting and lowering. The bodies and roller assemblies of the primary and secondary lifting platforms are staggered, allowing them to move up and down without interfering with each other.

[0013] Furthermore, the bottom of the feeding rack of the feeding hopper is equipped with a water collection plate and a water collection trough for collecting the cooling oil after the bar stock is processed.

[0014] Furthermore, the first and second feeding mechanisms are each equipped with a second guide rail and a feeding cylinder. The installation position of the movable limiting plate can be adjusted according to the size of the bar stock to get closer to the feeding rack.

[0015] Beneficial Effects: This invention solves the problem of automating loading and unloading in the CNC bar stock machining process. It achieves the conveying and positioning of individual bars through a progressively rising lifting platform. The design of the roller assembly, the material-pushing block on the lifting platform, and the staggered design of the primary and secondary lifting platforms ensures the roller assembly supports and loads / unloads the bars. Reverse utilization of the lifting platform allows for easy unloading of materials. Furthermore, this invention simultaneously automates both loading and unloading operations, avoiding the labor risks associated with manual labor and effectively improving production efficiency. Attached Figure Description

[0016] Figure 1 This is an overall assembly drawing of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the walking mechanism structure in this utility model;

[0018] Figure 3 This is a schematic diagram of the side structure of the upper feed hopper in this utility model;

[0019] Figure 4 This is a top view of the upper feed hopper structure in this utility model;

[0020] Figure 5 This is a schematic diagram of the side structure of the feeding hopper of this utility model;

[0021] Figure 6 This is a top-view structural diagram of the feeding hopper of this utility model.

[0022] The components include: 1. Conveying beam; 2. Bar stock; 3. Loading bin; 4. Discharging bin; 5. Water collection trough; 6. Traveling mechanism; 601. Roller frame; 602. Limiting and adjusting beam; 603. Roller assembly; 301. Lifting cylinder; 302. First guide rail; 303. Moving limit plate; 304. First-stage lifting platform; 305. Second-stage lifting platform; 401. Second discharging mechanism; 402. First discharging mechanism; 403. Water collection plate; 404. Discharging cylinder; 405. Second guide rail. Detailed Implementation

[0023] To provide a detailed disclosure of the technical solution of this utility model, further description is provided below in conjunction with the accompanying drawings.

[0024] Please refer to Figure 1 This utility model relates to an automatic loading and unloading device for CNC machine tools processing bar stock 2. It includes a conveying beam 1 for transferring the bar stock 2. The conveying beam 1 has slide rails on both sides, and a traveling mechanism 6 is mounted on these slide rails. The traveling mechanism 6 is equipped with a protective cover and contains a drive motor and gear set. A gear rack of the same length as the conveying beam 1 is located on the upper surface of the conveying beam 1, and meshes with the gear set inside the traveling mechanism 6. The traveling mechanism 6 is controlled by a control unit (control circuit) to move along the conveying beam 1. The control circuit and power supply are transmitted through a chain-type protective channel. The conveying beam 1 is mounted on the ground via columns. After loading and unloading the bar stock 2, it is conveyed to the other end, extending into the CNC machine tool for receiving the material.

[0025] Please refer to Figure 2 Below the traveling mechanism 6 is a roller support frame 601. The roller support frame 601 includes transverse and longitudinal support beams. Roller assemblies 603 are mounted on the roller support frame 601 and are arranged in two parallel pairs in two layers. The crossbeam of the roller support frame 601 that mounts the roller assemblies 603 is equipped with a scale for adjusting the distance between the rollers in the roller assembly 603 to accommodate the needs of different lengths of bar stock 2. The mounting crossbeam and the limit adjustment beam 602 of the roller support frame 601 are equipped with fixing grooves for matching bolts to accommodate the moving and fixing of the roller assembly 603, ensuring that the position of each roller assembly of the roller assembly 603 can be tightened after movement. To meet the clamping requirements of the bar stock 2 inside the CNC machine tool and achieve precise positioning of the bar stock 2 during loading and unloading, the mounting position on the longitudinal support beam of the roller support frame 601 is adjustable.

[0026] Please refer to Figure 3 and Figure 4The feeding hopper 3 includes a feeding rack and a primary lifting platform 304 and a secondary lifting platform 305, which are installed in stages on one side. The primary lifting platform 304 and the secondary lifting platform 305 are installed via support columns of the feeding rack. At least two first guide rails 302 are provided at the connection position of the primary lifting platform 304 and the secondary lifting platform 305 respectively. Two first cylinders 301 are connected to the base of the feeding rack on the primary lifting platform 304 and the secondary lifting platform 305 respectively, so that the two first cylinders 301 can drive the primary lifting platform 304 and the secondary lifting platform 305 to move up and down on their respective first guide rails 302. A material-pushing block is provided on the primary lifting platform 304 and the secondary lifting platform 305, which is a platform for horizontally downward-positioning the bar stock 2. The end of the material-pushing block near the feeding rack is higher than the side away from the feeding rack, and a blocking block is installed at the lower end of the material-pushing block to prevent the bar stock 2 from rolling off. The primary lifting platform 304, the secondary lifting platform 305, and the roller assembly 603 are staggered in spatial position to avoid collisions during movement. A movable limiting plate 303 is also provided on one side of the material rack in the loading bin 3. The distance between the limiting plate and the material rack can be adjusted according to the length of the bar stock 2. The movable limiting plate 303 prevents the bar stock 2 from falling during rolling and also assists in measuring its length.

[0027] The working principle of the feeding bin 3 is as follows: Initially, the feeding blocks of the primary lifting platform 304 and the secondary lifting platform 305 are aligned in a straight line. The bar stock 2 is located on the feeding rack. Due to gravitational potential energy, the bar stock 2 can roll directly onto the secondary lifting platform 305. The two lifting platforms rise under the drive of two first cylinders 301. The primary lifting platform 304 stops after rising to a certain height, thus preventing the next bar stock 2 from rolling onto its feeding block. The secondary lifting platform 305 continues to rise to a fixed position. The traveling mechanism 6 drives the support roller group 603 to directly below the bar stock. Then, the secondary lifting platform 305 descends, and the bar stock 2 is supported by the support roller group 603 and placed on the upper layer. The traveling mechanism 6 moves under the drive of the top gear meshing, feeding the bar stock 2 into the CNC machine tool for processing.

[0028] Please refer to Figures 5-6The unloading bin 4 also includes a material rack. Below the material rack, there is a water collection plate 403, which is tilted to collect residual cooling oil on the finished bar stock 2 into the water collection tank 5, preventing ground contamination and other accidental personal injury. A second unloading mechanism 401 and a first unloading mechanism 402 are sequentially installed on one side of the material rack. Both the first and second unloading mechanisms 401 and 402 are mounted on the material rack via their respective two dedicated second guide rails 405 and are driven by dedicated unloading cylinders 404. The material-pushing blocks installed on the first and second unloading mechanisms 402 and 401 are opposite to their corresponding components in the loading bin 3. The end of the material-pushing block furthest from the material platform is higher than the end closest to the material platform, allowing the bar stock 2 to fall onto the material platform along the guide of the material-pushing block. Additionally, a blocking block is installed on the side of the material-pushing block closest to the material platform to prevent the bar stock 2 from slipping during the unloading mechanism's upgrade, as excessive height could pose a high risk of injury from falling debris. A water collection tank 5 is provided below the first feeding mechanism 402 and the second feeding mechanism 401 to prevent the cooling oil carried out by the finished bar stock 2 from dripping, polluting the environment and posing safety risks. The feeding cylinders 404 are all controlled by a control circuit.

[0029] The working principle of the feeding bin 4 is as follows: the processed bar stock 2 is carried out by the lower support roller group 603 on the traveling mechanism 6 and moved to the feeding bin 4. The first feeding mechanism 402 rises and lifts the bar stock 2. Since the positions of each feeding mechanism and the support roller group 603 are staggered, the second feeding mechanism 401 rises higher than the first feeding mechanism 402. After the bar stock 2 is lifted again, it slides into the feeding block of the second feeding mechanism 401. Then the first feeding mechanism 402 descends. At this time, the traveling mechanism 6 can continue to move forward without being obstructed by the structure of the first feeding mechanism 402 and switch to feeding.

Claims

1. A loading and unloading device for a CNC machine tool, comprising a traveling mechanism (6), a loading bin (3), and a unloading bin (4), characterized in that: The walking mechanism (6) is mounted on the conveying beam (1) via a slide rail. The conveying beam (1) is equipped with a rack that meshes with the gear on the walking mechanism (6) to achieve walking. The traveling mechanism (6) is provided with a roller frame (601), which includes two pairs of roller groups (603) arranged in layers and parallel to each other, for supporting and transferring the bar stock. The feeding hopper (3) includes a feeding rack, and a step-by-step lifting mechanism is provided on one side of the feeding rack to transfer the bar stock to the roller group (603). The step-by-step lifting mechanism includes a first-stage lifting platform (304) and a second-stage lifting platform (305). The first-stage lifting platform (304) and the second-stage lifting platform (305) can move up and down on one side of the feeding rack through cylinders and guide rails. The feeding bin (4) is equipped with a feeding rack. The first feeding mechanism (402) and the second feeding mechanism (401) are arranged on one side of the feeding rack in stages. The second feeding mechanism (401) and the first feeding mechanism (402) are respectively arranged on one side of the feeding rack through cylinders and guide rails and can move up and down.

2. The CNC machine tool loading and unloading device according to claim 1, characterized in that: The walking mechanism (6) includes a motor for driving the gear to rotate, and the gear and motor are enclosed by a protective cover.

3. The CNC machine tool loading and unloading device according to claim 1, characterized in that: The roller support frame (601) includes a limiting adjustment beam (602), which is used to adjust and fix two pairs of roller supports (603). The limiting adjustment beam (602) is provided with a fixing groove for the matching bolts, and a scale is provided on the crossbeam of the roller support frame (601) that mounts the roller supports (603).

4. The CNC machine tool loading and unloading device according to claim 1, characterized in that: The feeding hopper (3) has a movable limiting plate (303) on one side of the feeding rack, and the first-level lifting platform (304) and the second-level lifting platform (305) are provided with downwardly inclined material-pulling blocks. The end of the material-pulling block away from the feeding rack is lower than the other end, and a blocking block is provided. The primary lifting platform (304) and the secondary lifting platform (305) are respectively provided with a first guide slide rail (302) and a lifting cylinder (301) for controlling their lifting and lowering.

5. The CNC machine tool loading and unloading device according to claim 4, characterized in that: The bodies and roller groups (603) of the primary lifting platform (304) and the secondary lifting platform (305) are staggered and can move up and down without interfering with each other.

6. The CNC machine tool loading and unloading device according to claim 1, characterized in that: The bottom of the feeding rack of the feeding hopper (4) is provided with a water collection plate (403) and a water collection trough (5) for collecting the cooling oil after the bar stock (2) is processed.

7. The CNC machine tool loading and unloading device according to claim 1, characterized in that: The first feeding mechanism (402) and the second feeding mechanism (401) are respectively provided with a second guide slide rail (405) and a feeding cylinder (404).

8. The CNC machine tool loading and unloading device according to claim 4, characterized in that: The installation position of the movable limiting plate (303) can be adjusted to be close to the material rack according to the size of the bar stock (2).

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