A feeding and discharging device for CNC machining

Abstract

The utility model belongs to CNC processing auxiliary equipment technical field, concretely is a kind of feeding and discharging device for CNC processing, it includes: door type support structure, the one side of door type support structure is equipped with the support platform of symmetrical arrangement, for installing lifting platform, guide rail component is installed on lifting platform, to realize the movement of workpiece, the two sides of lifting platform are equipped with lifting component, for controlling lifting platform to go up and down, the top of door type support structure is equipped with linear mechanical arm, linear mechanical arm is slidably connected with mounting bracket, and lifting clamping component and stabilizer rod are equipped on mounting bracket, workpiece can be clamped and fixed and keep stable, the feeding and discharging device of the utility model can make workpiece quickly complete feeding and discharging, realize the efficient processing of CNC equipment, reduce the downtime generated by feeding and discharging.

Description

Technical Field

[0001] This utility model belongs to the technical field of CNC machining auxiliary equipment, specifically a loading and unloading device for CNC machining. Background Technology

[0002] Currently, in horizontal machining centers, the loading and unloading of workpieces generally relies on manual operation. Specifically, operators must manually unload the finished workpiece from the machine tool table and then clamp the workpiece to be processed onto the table. For safety reasons, all moving axes of the machine tool must be completely stopped during manual loading and unloading operations, and can only be restarted after the loading and unloading operations are completed to process the next workpiece.

[0003] However, frequent machine tool starts and stops lead to additional material changeover time, thus extending the processing cycle of a single workpiece and hindering the improvement of overall processing efficiency. Therefore, it is urgent to solve how to effectively reduce equipment downtime caused by manual intervention while ensuring operational safety.

[0004] Therefore, it is necessary to design an auxiliary device for loading and unloading of horizontal machining centers, which can improve the efficiency of loading and unloading operations and ensure smooth and safe operation when manual intervention is required, without interfering with the normal operation of workers. Utility Model Content

[0005] Therefore, it is necessary to provide a loading and unloading device for CNC machining, which facilitates the transfer of workpieces to the corresponding equipment without manual handling. At the same time, the device can automatically complete the loading and unloading operations of workpieces through the grippers, thereby improving the machining efficiency of CNC. When equipment malfunctions and manual intervention is required, the device can be raised and lowered to avoid interfering with maintenance operations.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] A loading and unloading device for CNC machining includes: a portal-type support structure, a symmetrically arranged support platform on one side of the portal-type support structure for mounting a lifting platform, a moving track mounted on the lifting platform to realize the movement of the workpiece, lifting components on both sides of the lifting platform for controlling the lifting and lowering of the lifting platform, a linear robotic arm on the top of the portal-type support structure, a mounting frame slidably connected to the linear robotic arm, and a lifting clamping component and a stabilizing rod on the mounting frame to clamp and fix the workpiece and maintain stability.

[0008] Optionally, in one embodiment of the present invention, the lifting component includes a lead screw motor assembly and a sliding assembly. The lead screw motor assembly is provided with a slide table, which is fixedly connected to the lifting platform. Each set of lead screw slide table assemblies is equipped with a set of sliding assemblies.

[0009] Optionally, in one embodiment of the present invention, the sliding component adopts a combination of a slider and a guide rail. The slider is installed on the lifting platform, the guide rail is fixedly installed on the support platform, and the slider and the guide rail are slidably connected.

[0010] Optionally, in one embodiment of the present invention, the sliding assembly adopts a combination of a linear bearing and a guide rod, with the linear bearing installed on the lifting platform and the guide rod installed on the support platform, and the linear bearing and the guide rod being slidably connected.

[0011] Optionally, in one embodiment of the present invention, the top of the support platform is provided with a docking platform, and the docking platform is also provided with a moving track to dock with the lifting platform.

[0012] Optionally, in one embodiment of the present invention, a column structure is connected to the top of the support platform, and a crossbeam structure is installed and connected to the top of the column structure.

[0013] Optionally, in one embodiment of the present invention, the docking platform is provided with a detachable track base, and the track base has symmetrically arranged mounting slots.

[0014] Optionally, in one embodiment of the present invention, the stabilizer bar includes a telescopic drive and a pressure bar, wherein the pressure bar is detachably installed on the telescopic end of the telescopic drive.

[0015] Optionally, in one embodiment of the present invention, the mounting bracket has a Z-shaped structure, and a stabilizing component is provided on the top of the mounting bracket to maintain smooth movement.

[0016] Optionally, in one embodiment of the present invention, the lifting clamping component includes a clamp and a lifting drive for controlling the lifting of the clamp. The lifting drive is fixedly installed on the mounting frame, and the clamp is installed on the telescopic end of the lifting drive.

[0017] Compared with the prior art, the loading and unloading device for CNC machining provided by this utility model has the following characteristics:

[0018] It features a portal frame support structure and a moving track. The moving track is segmented and includes a lifting platform. The lifting platform can be smoothly and synchronously raised and lowered by rotating a linkage screw, ensuring precise alignment of the moving track and stable movement of the platform trolley. The lifting and clamping components on the portal frame support structure are equipped with stabilizing rods and chucks to maintain workpiece clamping stability, improve the loading and unloading efficiency of CNC equipment, and thus improve the processing efficiency of CNC machining equipment. It is suitable for highly automated machining production lines. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of a loading and unloading device for CNC machining according to Embodiment 1 of this utility model;

[0021] Figure 2 This is a schematic diagram of the connection structure between the support platform and the lifting platform in Embodiment 1 of this utility model;

[0022] Figure 3 This is a schematic diagram of the lifting clamping component and stabilizing rod structure of Embodiment 1 of this utility model.

[0023] Reference numerals: 1. Gate-type support structure; 101. Linear robotic arm; 2. Lifting and clamping component; 201. Mounting frame; 2011. Slide table; 2021. Lifting drive; 2022. Gripper; 203. Telescopic drive; 2031. Pressure rod; 3. Support platform; 301. Lifting platform; 302. Lifting component; 3021. Drive motor; 3022. Sliding assembly; 303. Moving track. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.

[0025] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0026] To improve the machining efficiency of CNC equipment, a loading and unloading device for CNC machining was designed, and the specific scheme is as follows:

[0027] Example 1

[0028] like Figure 1-3 As shown, a loading and unloading device for CNC machining includes: a gantry-type support structure 1, a symmetrically arranged support platform 3 on one side of the gantry-type support structure 1 for mounting a lifting platform 301, the support platform 3 having a height of 70cm-100cm to facilitate operator access to the surfaces of the lifting platform 301 and the support platform 3, a moving track 303 mounted on the lifting platform 301 to enable workpiece movement, lifting components 302 on both sides of the lifting platform 301 for controlling the lifting of the lifting platform 301, a linear robotic arm 101 at the top of the gantry-type support structure 1, a mounting frame 201 slidably connected to the linear robotic arm 101, and a lifting clamping component 2 and a stabilizing rod on the mounting frame 201 to clamp and fix the workpiece and maintain stability.

[0029] In this embodiment, the length direction of the portal support structure 1 is perpendicular to the length direction of the support platform 3 and the moving track 303. The support platform 3 and the moving track 303 form a segmented track. The platform trolley for transporting workpieces can move linearly on the track to transport the workpieces to different CNC equipment for loading and unloading.

[0030] The lifting component 302 includes a lead screw motor assembly and a sliding assembly 3022. The lead screw motor assembly is provided with a slide table 2011, which is fixedly connected to the lifting platform 301. In this embodiment, a set of lead screw and slide table 2011 assemblies are respectively provided at the four corners of the lifting platform 301. One set of assemblies is connected to a drive motor 3021, and the four sets of assemblies are linked for transmission. The four lead screws are rotated synchronously by a single drive motor 3021, so that the lifting platform 301 is raised and lowered synchronously. Each set of lead screw and slide table 2011 assemblies is equipped with a set of sliding assemblies 3022 to improve stability.

[0031] The sliding component 3022 adopts a combination of slider and guide rail. The slider is installed on the lifting platform 301, and the guide rail is fixedly installed on the support platform 3. The slider and the guide rail are slidably connected. In this embodiment, the guide rail is installed on the front of the screw motor assembly, which makes the lifting of the lifting platform 301 more stable and the movement accuracy higher, ensuring the accurate docking of the top moving track 303.

[0032] In other solutions, the sliding assembly 3022 uses a combination of linear bearings and guide rods. The linear bearings are installed on the lifting platform 301, and the guide rods are installed on the support platform 3. The linear bearings and guide rods are slidably connected. The guide rods are located where the lead screw passes through the lifting platform 301. The linear bearings are installed at the passing position. The lead screw motor is installed at the bottom center of the lifting platform 301. Similarly, the motor drives and controls the lead screw to rotate forward and backward to achieve lifting.

[0033] The top of the support platform 3 is equipped with a docking platform, which is also equipped with a moving rail 303 to dock with the lifting platform 301. In actual production, multiple CNC machines are arranged in a straight line. Therefore, by connecting the moving rails 303 into a straight line, the platform trolley can move on the moving rails 303 to transport the workpiece to the front of any CNC machine on the same straight line, so that the lifting and clamping of the workpiece above can be carried out.

[0034] The top of the support platform 3 is connected to a column structure, and the top of the column structure is connected to a crossbeam structure. In this embodiment, the column structure includes two columns located at the front and rear of the CNC equipment. The column structure located at the front is relatively shorter and is supported by the support platform 3 at the bottom. The column structure located at the rear is relatively longer. The arrangement of the two column structures can also ensure stability when the lifting clamping component 2 moves. The top of the two column structures is fixedly connected to the crossbeam. The crossbeam extends forward to allow the lifting clamping component 2 to move directly above the lifting platform 301. At the same time, the column structure located at the front is installed at the rear of the support platform 3, that is, close to the front of the CNC equipment, so that when the operator contacts the docking platform and the lifting platform 301, there will be no column interference, making it easier to handle some problems.

[0035] The docking platform is equipped with a detachable track base, and the track base has symmetrically arranged mounting slots. In this embodiment, the moving track 303 is installed in the mounting slot. When the platform trolley moves along the moving track 303, the mounting slot can play a limiting role.

[0036] The stabilizer bar includes a telescopic drive 203 and a pressure bar 2031, with the pressure bar 2031 detachably mounted on the telescopic end of the telescopic drive 203. In practical use, a dedicated workpiece mounting structure is used to fix the workpiece in place. The workpiece mounting structure is an independent structural component that can be easily removed. The top of the workpiece mounting structure is equipped with a clamping structure for lifting and lowering the clamping head 2021 of the clamping component 2 for clamping. The workpiece mounting structure allows for the mounting of workpieces of different specifications on the surface. Since the clamping structure is of the same specification, it is not necessary to change the clamping head 2021 to different specifications for different workpieces. After the workpiece is clamped by the workpiece fixing table, the stabilizer bar extends, and the pressure bar 2031 contacts the top two sides of the workpiece fixing table, preventing it from shaking when moving.

[0037] The mounting bracket 201 has a Z-shaped structure. The top of the mounting bracket 201 is provided with a stabilizing component to maintain smooth movement. In this embodiment, the stabilizing component is a combination of a slide table 2011 and a guide rail. The slide table 2011 is installed on the upper part of the mounting bracket 201, and the guide rail is fixedly installed on the top of the crossbeam.

[0038] The lifting clamping component 2 includes a chuck 2021 and a lifting drive 202 that controls the lifting of the chuck 2021. The lifting drive 202 is fixedly installed on the mounting frame 201, and the chuck 2021 is installed on the telescopic end of the lifting drive 202. In this embodiment, both the lifting drive 202 and the telescopic drive 203 adopt telescopic cylinder components, and the lifting of the chuck 2021 / pressure rod 2031 is completed by the extension and retraction of the cylinder.

[0039] Working principle:

[0040] In actual production applications, firstly, the worker fixes the workpiece on the workpiece fixing table, and then places the workpiece fixing component, after the workpiece is installed, smoothly and neatly on the platform trolley. The platform trolley moves along the moving track 303 to the front of the corresponding CNC equipment. At this time, the protective door on the front of the CNC equipment is open. The lifting clamping component 2 moves to directly above the corresponding workpiece fixing component, and then the lifting clamping component 2 descends. The chuck 2021 contacts the clamping structure on the top of the workpiece fixing component and then opens. During the continued descent, the clamping structure is clamped. Then it rises, causing the workpiece fixing component to detach from the platform trolley, and the stabilizing rod descends, causing the pressure rod 2031 to contact the top two sides of the workpiece fixing component. Next, the entire lifting clamping component 2 is operated by the linear robotic arm 101 to move the workpiece fixing table towards the worktable inside the CNC equipment. When it moves to directly above the worktable, it stops moving. Then the lifting clamping component 2 descends, places the workpiece fixing table on the worktable, and releases the clamp, thus completing the loading process. The above mechanical action process is reversed to complete the unloading process.

[0041] The loading and unloading device for CNC machining in this solution is equipped with a gantry-type support structure 1, which has better torsional resistance than a cantilever structure, solves the problems of end-effector shaking and downward deflection caused by excessive cantilever length, and improves the positioning accuracy of loading and unloading.

[0042] The docking platform with support platform 3 and the lifting platform 301 are combined to form a continuous straight track. The platform trolley can transport the workpiece along this track to any designated equipment on the production line.

[0043] The front column is relatively short and located behind support platform 3, so that operators will not be obstructed by the column when operating on the docking platform, handling abnormalities or changing workpieces, thus improving the convenience and safety of operation.

[0044] The lifting mechanism is driven by a single motor and linked with a lead screw to achieve synchronous lifting of the lifting platform 301. This ensures that the moving track 303 on the top of the lifting platform 301 can achieve high precision with the track of the docking platform. At the same time, when operators need to enter from the front of the CNC, the lifting platform 301 will not interfere with the operators' entry and exit after it is lowered.

[0045] The machine is equipped with a standardized workpiece fixing table. The chuck 2021 only needs to hold the workpiece fixing table, which is adapted to fix workpieces of various specifications. During the CNC machining process, the operator can fix the workpiece on the workpiece fixing table, which improves the continuity of the machine processing and reduces downtime for loading and unloading.

[0046] Example 2

[0047] In this embodiment, the structure of the device is basically the same as that of Embodiment 1. The difference is that the bottom of the lifting platform 301 is connected to a separate base, and the base is connected to a moving mechanism for translating the base to the lifting platform 301. The translation direction is the same as the length direction of the crossbeam. A docking platform arranged in a straight line can be set on the outside of the lifting platform 301. After the lifting platform 301 moves in, it can form a return moving track 303, which facilitates the return of the platform trolley and the removal of the processed workpiece.

[0048] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A loading and unloading device for CNC machining, characterized in that, include: A portal-type support structure is provided, with symmetrically arranged support platforms on one side for mounting a lifting platform. The lifting platform is equipped with a moving track to move the workpiece. Lifting components are also provided on both sides of the lifting platform to control its lifting and lowering. A linear robotic arm is provided at the top of the portal-type support structure, and a mounting frame is slidably connected to the linear robotic arm. The mounting frame is equipped with lifting clamping components and a stabilizing rod to clamp and fix the workpiece and maintain stability.

2. The loading and unloading device for CNC machining according to claim 1, characterized in that, The lifting component includes a lead screw motor assembly and a sliding assembly. The lead screw motor assembly is equipped with a slide table, which is fixedly connected to the lifting platform. Each set of lead screw slide table assemblies is equipped with a set of sliding assemblies.

3. The loading and unloading device for CNC machining according to claim 2, characterized in that, The sliding assembly adopts a combination of a slider and a guide rail. The slider is installed on the lifting platform, and the guide rail is fixedly installed on the support platform. The slider and the guide rail are slidably connected.

4. The loading and unloading device for CNC machining according to claim 2, characterized in that, The sliding assembly adopts a combination of linear bearings and guide rods. The linear bearings are installed on the lifting platform, and the guide rods are installed on the support platform. The linear bearings and guide rods are slidably connected.

5. The loading and unloading device for CNC machining according to claim 1, characterized in that, The top of the support platform is equipped with a docking platform, which is also equipped with a moving track to dock with the lifting platform.

6. The loading and unloading device for CNC machining according to claim 5, characterized in that, The top of the support platform is connected to a column structure, and a crossbeam structure is installed on the top of the column structure.

7. The loading and unloading device for CNC machining according to claim 5, characterized in that, The docking platform is equipped with a detachable track base, and the track base has symmetrically arranged mounting slots.

8. The loading and unloading device for CNC machining according to claim 1, characterized in that, The stabilizer bar includes a telescopic drive and a pressure bar, with the pressure bar being detachably mounted on the telescopic end of the telescopic drive.

9. A loading and unloading device for CNC machining according to claim 1, characterized in that, The mounting bracket has a Z-shaped structure, and a stabilizing component is provided on the top of the mounting bracket to ensure smooth movement.

10. A loading and unloading device for CNC machining according to claim 1, characterized in that, The lifting clamping component includes a chuck and a lifting drive that controls the lifting of the chuck. The lifting drive is fixedly installed on the mounting frame, and the chuck is installed on the telescopic end of the lifting drive.

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