Feeding device of numerical control machine tool

Abstract

The utility model relates to a numerical control machine tool feeding device which comprises a supporting frame rotating disc, an air cylinder, a rotating mechanism, a feeding hopper and bars, supporting discs and a connecting ring are arranged on a supporting frame, and the supporting discs are located in the middle of the connecting ring and arranged at intervals; the rotating disc is movably connected to the connecting ring through a rotating mechanism, a round through hole is formed in the middle of the rotating disc, the rotating disc and the supporting disc are the same in concentricity, a pushing piece is arranged above the supporting disc, a plurality of containing grooves are formed in the rotating disc at equal intervals, and after the rotating disc rotates to the proper position, the containing grooves are matched with the supporting disc. The bars in the discharging hopper start to fall, the bars in the containing groove are pushed to the machine tool platform through the pushing piece, and the pushing piece is an air cylinder. A plurality of placing grooves are formed in a rotating disc of the device, and a plurality of bars can be placed in the placing grooves; and after the turntable rotates to a proper position, the bar material is pushed into the machine tool by the air cylinder, so that the device has the advantages of comprehensive intelligence, no need of secondary conveying, easiness in operation and the like.

Description

Technical Field

[0001] This utility model relates to the field of CNC feeding technology, specifically a CNC machine tool feeding device. Background Technology

[0002] Manual loading makes it difficult to ensure the consistency and accuracy of loading positions. In the field of precision machining, even a tiny deviation in loading position can be amplified in subsequent processing steps, leading to a significant decrease in machining accuracy, a large number of scraps, waste of raw materials, and a sharp increase in production costs. In modern manufacturing, CNC machine tools are widely used in the processing and production of various precision parts. With the continuous improvement of production efficiency requirements and the strengthening of the trend of automated production, traditional manual loading methods have gradually revealed many limitations. Manual loading is often inefficient and cannot meet the high-speed, continuous processing rhythm of CNC machine tools. Frequent manual intervention not only increases labor intensity but also easily leads to decreased machining accuracy, workpiece damage, and even safety accidents due to human error. Moreover, in some harsh processing environments (such as high temperature, high dust, and high noise), manual loading also poses a significant threat to the health of operators.

[0003] A search revealed a CNC machine tool loading device disclosed in Chinese utility model patent publication number CN220240818U. The device includes an L-shaped material stacking box with a material stacking groove inside. The bottom wall of the material stacking groove has an inclined structure in the middle. Sliding holes are provided on both the front and rear side walls of the material stacking groove. An adjusting rod is installed inside the material stacking groove, with both ends of the adjusting rod slidably connected to the sliding holes. A pair of material stacking blocks and an adjusting block are sleeved on the side wall of the adjusting rod, with the adjusting block located between the two material stacking blocks. Both the material stacking blocks and the adjusting block have through-holes. A first limiting hole is also provided inside the material stacking block. The first limiting groove is connected to the movable hole. The adjusting block also has a second limiting groove and an adjusting cavity, both of which are connected to the movable hole. Limiting blocks are slidably connected in both the first and second limiting grooves. The limiting blocks are fixed to the side wall of the adjusting rod and coaxially connected to the adjusting rod. Multiple synchronous grooves are opened on the side walls of the stacking block and the adjusting block. This structure cannot directly put the bar stock into the CNC machine and requires other tools to assist. Only one bar stock can be dropped at a time, which will affect the feeding speed. Therefore, this kind of CNC machine tool feeding device needs further improvement. Hence, another CNC machine tool feeding device is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a CNC machine tool loading device that has the advantages of being able to hold multiple bar stock, having a simple structure, being easy to operate, and providing precise loading, thus solving the loading problem.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a CNC machine tool loading device, comprising a support frame turntable, a cylinder, a rotating mechanism, a loading funnel and bar stock, wherein a support plate and a connecting ring are provided on the upper part of the support frame, and the support plate is located in the middle of the connecting ring and is spaced apart;

[0006] The turntable is movably connected to the connecting ring via a rotating mechanism. The turntable has a circular through hole in the middle. The turntable and the support plate are concentric. A pushing member is provided above the support plate. The turntable has several placement slots at equal intervals. When the turntable rotates to a suitable position, the pushing member pushes the bar stock in the placement slot onto the machine tool platform.

[0007] In a preferred embodiment, the support plate, the shim plate, and the connecting ring provided in the support frame are all cylindrical, and the shim plate is fixedly connected to the support plate.

[0008] Furthermore, the through hole in the center of the turntable is spaced apart from the raised plate, and the bottom of the through hole of the turntable is movably fitted with the edge of the support plate.

[0009] Furthermore, each of the placement slots is arc-shaped, and the turntable is provided with several sets of rollers at equal intervals. Each set of rollers is located between two placement slots, and each set of rollers has several rollers.

[0010] Furthermore, the pushing component is a cylinder, which is connected to the raised plate by screws.

[0011] Furthermore, in the rotating mechanism, the outer periphery of the internal gear ring is sleeved with the inner diameter of the bearing, the outer diameter of the bearing is sleeved with the inner ring of the connecting ring, the internal gear ring meshes with a gear and is connected to the output shaft of the motor, the motor is fixedly connected to the support frame through a fixing bracket, and the upper surface of the internal gear ring is fixedly connected to the lower surface of the turntable.

[0012] Furthermore, a discharge port is provided below the feeding funnel and is correspondingly arranged with the placement groove. Several fixing plates are provided at intervals on both sides of the feeding funnel. One fixing plate is fixedly connected to the support plate, and the other fixing plate is fixedly connected to the connecting ring.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] (1) Improved feeding efficiency: By setting multiple placement slots on the turntable, this device can simultaneously place multiple bars, which significantly improves feeding efficiency compared with the traditional single feeding method. The rotating mechanism enables the turntable to accurately position the appropriate placement position. Driven by the cylinder, the bars can be quickly and accurately delivered to the machine tool working platform, adapting to the needs of high-speed continuous production.

[0015] (2) Design optimization and precise feeding: The structural design of this device takes into account mechanical stability and operational precision. The concentric design of the turntable and the support plate ensures the smooth operation. The arc design of each placement slot, combined with the roller group, ensures that the bar stock is stable in position during the transfer process and is not prone to slippage, thereby ensuring the precision of feeding.

[0016] (3) Simplified structure and convenient maintenance: The device has a simplified structure, making it easy to install and maintain. All major components, such as cylinders, turntables and support frames, adopt standardized and modular designs, which facilitates quick replacement and repair, reduces maintenance costs and increases equipment uptime. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a front structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the support frame of this utility model;

[0020] Figure 4 This is a schematic diagram of the support frame and rotating mechanism of this utility model.

[0021] In the diagram: 1. Support frame; 10. Support plate; 11. Elevating plate; 12. Connecting ring; 2. Turntable; 20. Placement slot; 21. Roller; 3. Cylinder; 4. Rotating mechanism; 40. Internal gear ring; 41. Gear; 42. Motor; 43. Fixing frame; 44. Bearing; 5. Feeding funnel; 50. Fixing plate; 6. Bar stock. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4 The CNC machine tool loading device in this embodiment includes a support frame 1, a turntable 2, a cylinder 3, a rotating mechanism 4, a loading hopper 5, and a bar stock 6. The support frame 1 is provided with a support plate 10 and a connecting ring 12 on its upper part. The support plate 10 is located in the middle of the connecting ring 12 and is spaced apart.

[0024] Turntable 2 is movably connected to connecting ring 12 via rotating mechanism 4. Turntable 2 has a circular through hole in the middle. Turntable 2 and support plate 10 are concentric. A pushing member is provided above support plate 10. Several placement slots 20 are provided on turntable 2 at equal intervals. When turntable 2 rotates to a suitable position, the pushing member pushes the bar stock 6 in the placement slot 20 onto the machine tool platform.

[0025] The support frame 1 is constructed by welding together multiple steel pipes. To increase overall stability, a set of steel pipes is fixedly connected at equal intervals below the support plate 10 and the connecting ring 12, ensuring a secure connection between these two sets of pipes. The connecting ring 12 is hollow in the middle, and the support plates 10 are spaced out in the middle of the connecting ring 12, with the support plates 10 and the connecting ring 12 being concentric. The support plates 10, the raising plate 11, and the connecting ring 12 in the support frame 1 are all cylindrical. The raising plate 11 is fixedly connected to the support plate 10 to raise the height of the pushing component, allowing it to contact the bar stock 6. The pushing component is a cylinder 3, which is connected to the raising plate 11 by screws.

[0026] Multiple bars 6 can be placed on the turntable 2, facilitating the descent of the bars 6 from the feeding hopper 5 and their subsequent delivery to the CNC machine tool by the cylinder 3. The through-hole in the center of the turntable 2 is spaced apart from the raised plate 11, and the bottom of the through-hole of the turntable 2 movably engages with the edge of the support plate 10 to increase the contact area and ensure the stability of the turntable 2. Each placement slot 20 is arc-shaped to prevent the bars 6 from rolling freely within the slot, thus ensuring their placement on the machine tool platform. The turntable 2 has several sets of rollers 21 spaced at equal intervals, with each set of rollers 21 positioned between two placement slots 20, and each set containing several rollers.

[0027] It is understandable that when the turntable 2 rotates, the bar stock 6 that is not placed in the placement slot 20 in the feeding funnel 5 will rub against the upper surface of the turntable 2. After the roller 21 is set, the bar stock 6 passes on the roller 21, which can avoid wear on the upper surface of the turntable 2.

[0028] Specifically, the rotating mechanism 4 includes an internal gear ring 40, a gear 41, a motor 42, a fixed frame 43, and a bearing 44. The internal gear ring 40 is fitted into the inner ring of the connecting ring 12 via the bearing 44, which increases its sliding properties. The upper surface of the internal gear ring 40 is fixedly connected to the turntable 2, and the rotation of the internal gear ring 40 drives the rotation of the gripper 2. The internal gear ring 40 meshes with the gear 41, which is connected to the output shaft of the motor 42. The motor 42 is fixed to the support frame 1 via the fixed frame 43 to increase the stability of the motor 42.

[0029] In this embodiment, the lower part of the feeding funnel 5 is tapered when viewed from the side, so that the bar stock 6 falls quickly into the placement groove 20. A discharge port is provided at the bottom of the feeding funnel 5, corresponding to the placement groove 20, so that the bar stock 6 can fall accurately into the placement groove 20. Several fixing plates 50 are spaced apart on both sides of the feeding funnel 5. One fixing plate 50 is fixedly connected to the support plate 10, and the other fixing plate 50 is fixedly connected to the connecting ring 12 to increase the stability of the feeding funnel 5.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] 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 device for a CNC machine tool, comprising a support frame (1), a turntable (2), a cylinder (3), a rotating mechanism (4), a loading funnel (5), and bar stock (6), characterized in that: The support frame (1) is provided with a support plate (10) and a connecting ring (12) on its upper part. The support plate (10) is located in the middle of the connecting ring (12) and is spaced apart. The turntable (2) is movably connected to the connecting ring (12) through the rotating mechanism (4). The turntable (2) has a circular through hole in the middle. The turntable (2) and the support plate (10) are concentric. A pushing member is provided above the support plate (10). Several placement slots (20) are provided at equal intervals on the turntable (2). When the turntable (2) rotates to a suitable position, the pushing member pushes the bar stock (6) in the placement slot (20) onto the machine tool platform.

2. The CNC machine tool loading device according to claim 1, characterized in that: The support plate (10), the shim plate (11) and the connecting ring (12) provided in the support frame (1) are all cylindrical, and the shim plate (11) is fixedly connected to the support plate (10).

3. The CNC machine tool loading device according to claim 2, characterized in that: The through hole in the middle of the turntable (2) is spaced apart from the raised plate (11), and the bottom of the through hole of the turntable (2) is movable and engaged with the edge of the support plate (10).

4. The CNC machine tool loading device according to claim 1, characterized in that: Each of the placement slots (20) is arc-shaped, and the turntable (2) is provided with several sets of rollers (21) at equal intervals. Each set of rollers (21) is located between two placement slots (20), and each set of rollers (21) has several rollers.

5. The CNC machine tool loading device according to claim 1, characterized in that: The pusher is a cylinder (3), which is connected to the shim plate (11) by screws.

6. The CNC machine tool loading device according to claim 1, characterized in that: The inner gear ring (40) of the rotating mechanism (4) is sleeved around the inner diameter of the bearing (44), the outer diameter of the bearing (44) is sleeved around the inner ring of the connecting ring (12), the inner gear ring (40) meshes with the gear (41) and is connected to the output shaft of the motor (42), the motor (42) is fixedly connected to the support frame (1) through the fixing frame (43), and the upper surface of the inner gear ring (40) is fixedly connected to the lower surface of the turntable (2).

7. A CNC machine tool loading device according to claim 1, characterized in that: The feeding funnel (5) has a discharge port at the bottom and is correspondingly set with the placement groove (20). Several fixing plates (50) are provided at intervals on both sides of the feeding funnel (5). One fixing plate (50) is fixedly connected to the support plate (10), and the other fixing plate (50) is fixedly connected to the connecting ring (12).

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