Tool magazine protection structure for numerical control machine tool

Abstract

The utility model relates to the technical field of numerical control machining equipment, in particular to a tool magazine protection structure for a numerical control machine tool, which comprises a base, a tool magazine protection bin covering the base, a tool magazine door arranged on one side of the tool magazine protection bin and a tool magazine seat slidably mounted on the base. An opening and closing mechanism used for automatically opening or closing the tool magazine door is arranged between the tool magazine protection bin and the tool magazine door. The opening and closing mechanism comprises bearing plates fixedly arranged on the inner walls of the two sides of the tool magazine protection bin, guide grooves formed in the bearing plates, guide rods arranged on the two sides of the tool magazine door and inserted into the guide grooves, and a driving assembly used for driving the guide rods to slide along the guide grooves. The guide groove comprises an arc-shaped part and a longitudinal part connected to the upper portion of the arc-shaped part. The utility model aims to reduce the opening and closing range of the tool magazine door and effectively reduce the collision risk.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control processing equipment technical field especially, relates to a tool magazine protection structure for numerical control machine tool. BACKGROUND

[0002] With the development of industrial automation, various numerical control machine tools are widely used in the field of mechanical processing due to their high efficiency and high precision. However, in the actual production process, due to the complex workshop environment, there are often a lot of dust, metal chips and other impurities. These pollutants are easy to adhere to the tool and tool magazine of the numerical control machine tool, increasing the friction between the tool and the workpiece, and further aggravating the tool wear.

[0003] At present, the tool magazine protection bin is usually used to protect the tool. When the tool is replaced, the tool magazine door of the tool magazine protection bin needs to be opened, and the internal tool magazine seat needs to be moved out for replacement. It is found that most of the tool magazine doors currently use a hinge plus a cylinder to open. During the opening and closing process, due to the large opening and closing action, it is easy to collide with other parts on the machine tool. SUMMARY

[0004] In order to solve the problems in the background art, the utility model provides a tool magazine protection structure for numerical control machine tool.

[0005] The utility model solves the technical problems and adopts the following scheme: a tool magazine protection structure for numerical control machine tool, which comprises a base, a tool magazine protection bin covered on the base, a tool magazine door arranged on one side of the tool magazine protection bin, and a tool magazine seat slidingly installed on the base, an opening and closing mechanism for automatically opening or closing the tool magazine door is arranged between the tool magazine protection bin and the tool magazine door, the opening and closing mechanism comprises a bearing plate fixedly arranged on the inner walls of the two sides of the tool magazine protection bin, a guide groove arranged on the bearing plate, guide rods arranged on the two sides of the tool magazine door and inserted into the guide groove, and a driving assembly for driving the guide rods to slide along the guide groove, the guide groove comprises an arc-shaped part and a longitudinal part connected above the arc-shaped part.

[0006] By adopting the above technical scheme, the tool magazine door requires less space during opening and closing through the segmented opening and closing action, reducing the risk of collision.

[0007] Further, the driving assembly comprises a driving motor fixedly arranged on the bearing plate, a lifting screw rod extending upward and downward and in transmission connection with the driving motor, and a lifting seat in threaded transmission connection with the lifting screw rod, the lifting seat is slidingly connected with the guide rod.

[0008] By adopting the above technical scheme, the cooperation of the driving motor and the lifting screw rod can realize the accurate control of the opening and closing process of the tool magazine door.

[0009] Further, the lifting seat is provided with a sliding groove, the guide rod comprises a connecting portion fixedly connected with the tool magazine door and a sliding column slidingly arranged in the guide groove, and the connecting portion is slidingly arranged in the sliding groove.

[0010] By adopting the above technical scheme, the connecting portion of the guide rod slides in the sliding groove of the lifting seat, so that the sliding column portion of the guide rod slides along the arc-shaped portion of the guide groove. When the guide rod reaches the end of the arc-shaped portion, it smoothly transitions to the longitudinal portion and continues to slide along the longitudinal portion, so that the tool magazine door is vertically lifted to complete the opening operation.

[0011] Further, the bearing plate is provided with a limit switch corresponding to the bottom and top positions of the lifting screw rod.

[0012] By adopting the above technical scheme, the limit switch can detect the specific position of the lifting seat on the lifting screw rod and send a signal when reaching the limit position, thereby preventing damage caused by overstroke.

[0013] Further, the base is provided with a plurality of sliding grooves along the sliding direction of the tool magazine seat, the bottom of the tool seat is provided with a sliding rail slidingly connected in the sliding groove, and the tool magazine protection cabin is further provided with a push cylinder fixedly connected with the tail end of the tool magazine seat.

[0014] Further, the sliding groove and the sliding rail are provided with a plurality of parallel sliding grooves.

[0015] By adopting the above technical scheme, the push cylinder can drive the tool magazine seat to slide along the sliding groove, so as to realize the extension and retraction of the tool magazine seat. The plurality of sliding grooves ensure that the tool magazine seat does not deviate during movement.

[0016] In summary, the beneficial effects of the utility model are as follows: the driving assembly composed of the driving motor, the lifting screw rod and the lifting seat drives the guide rod to slide along the guide groove, so that the tool magazine door can be automatically opened or closed. By dividing the guide groove into the arc-shaped portion and the longitudinal portion, the tool magazine door can be slightly pushed out and then vertically lifted, so that the tool magazine door is more compact during opening or closing, and collision with other parts of the numerical control machine tool caused by large opening is avoided.

[0017] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, can be implemented according to the content of the specification, and in order to let the above and other purposes, characteristics and advantages of the utility model can be more obvious and easy to understand, the following preferred embodiments are shown, and the detailed description is as follows in conjunction with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure schematic diagram when the tool magazine door of the embodiment is opened;

[0019] Figure 2 It is the enlarged schematic diagram of the structure when the tool magazine door of the embodiment is closed;

[0020] Figure 3 It is the internal structure schematic diagram of the embodiment.

[0021] In the drawing: 1, base; 2, tool magazine protection bin; 3, tool magazine door; 4, tool magazine seat; 5, opening and closing mechanism; 51, bearing plate; 52, guide groove; 521, arc part; 522, longitudinal part; 53, guide rod; 531, connecting part; 532, sliding column; 54, driving assembly; 541, driving motor; 542, lifting screw; 543, lifting seat; 5431, sliding groove; 6, limit switch; 7, sliding groove; 8, sliding rail; 9, push cylinder. DETAILED DESCRIPTION

[0022] In order to make the content of the utility model more easily be clearly understood, the following according to specific embodiment and combining with the drawings, the utility model is further explained.

[0023] It should be noted that the terms "center", "upper", "lower", "front", "rear", "left", "right", "inner", "outer" and the like used herein indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. Unless otherwise stated, the meaning of "a plurality of" is two or more.

[0024] Unless otherwise expressly provided and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0025] As Figures 1 to 3As shown, a tool magazine protection structure for a numerical control machine tool, comprising a base 1, a tool magazine protection cabin 2 covering the base 1, a tool magazine door 3 arranged on one side of the tool magazine protection cabin 2, and a tool magazine seat 4 slidingly installed on the base 1, wherein the tool magazine protection cabin 2 and the tool magazine door 3 of the embodiment are provided with an opening and closing mechanism 5 for automatically opening or closing the tool magazine door 3, the opening and closing mechanism 5 comprises a bearing plate 51 fixedly arranged on the inner walls of both sides of the tool magazine protection cabin 2, a guide groove 52 arranged on the bearing plate 51, a guide rod 53 arranged on both sides of the tool magazine door 3 and inserted into the guide groove 52, and a driving assembly 54 for driving the guide rod 53 to slide along the guide groove 52, and the guide groove 52 comprises an arc-shaped portion 521 and a longitudinal portion 522 connected above the arc-shaped portion 521.

[0026] The opening and closing mechanism 5 of the embodiment drives the guide rod 53 to slide along the guide groove 52 through the driving assembly 54, so that the tool magazine door 3 can be automatically opened or closed. The guide groove 52 is divided into two sections, which are the horizontally curved arc-shaped portion 521 at the bottom end position of the bearing plate 51, along which the guide rod 53 slides to slightly push the tool magazine door 3 outward, and the longitudinal portion 522 connected at the tail end of the arc-shaped portion 521, which is vertically arranged on the end face of the bearing plate 51, along which the guide rod 53 slides to drive the tool magazine door 3 to open and close. In the closing process, the guide rod 53 drives the tool magazine door 3 to descend along the longitudinal portion 522 and then reset along the arc-shaped portion 521. The entire opening and closing process is divided into two sections, first slightly pushed out along the arc-shaped portion 521 and then vertically lifted, which can make the tool magazine door 3 more compact during opening or closing, avoiding collision with other parts of the numerical control machine tool due to large opening.

[0027] As shown in the drawings, Figure 2As shown, the driving assembly 54 of the embodiment includes a driving motor 541 fixed on the bearing plate 51, a lifting screw rod 542 extending vertically and in transmission connection with the driving motor 541, and a lifting seat 543 in threaded transmission connection with the lifting screw rod 542, and the lifting seat 543 is in sliding connection with the guide rod 53. The driving motor 541 fixed on the bearing plate 51 is a servo motor as the power source of the whole opening and closing mechanism 5, which is in electrical connection with the numerical control system, can automatically open and close the tool magazine door 3, and ensures the speed and position during the opening and closing process. The lifting screw rod 542 is vertically and parallel to the arc-shaped part 521, and is in transmission connection with the driving motor 541, when the driving motor 541 rotates, the lifting screw rod 542 rotates. The lifting seat 543 is in threaded transmission connection with the lifting screw rod 542, when the lifting screw rod 542 rotates, the lifting seat 543 moves up and down along the screw rod. The lifting seat 543 is also connected with the guide rod 53, driving the guide rod 53 to slide along the guide groove 52. And the guide rod 53 is in sliding connection with the lifting seat 543, so that the guide rod 53 can slide along the lifting seat 543, thereby ensuring that the guide rod 53 can smoothly move along the arc-shaped groove of the guide groove 52 into the longitudinal part 522.

[0028] As shown in Figure 2 , Figure 3 , the lifting seat 543 of the embodiment is provided with a sliding groove 5431, the guide rod 53 includes a connecting part 531 fixedly connected with the tool magazine door 3 and a sliding column 532 slidingly embedded in the guide groove 52, and the connecting part 531 is slidingly installed in the sliding groove 5431. When the tool magazine door 3 is in the closed state, the sliding column 532 of the guide rod 53 is located at the starting position of the guide groove 52, and the connecting part 531 is located in the sliding groove 5431 of the lifting seat 543. The driving motor 541 starts to rotate to drive the lifting screw rod 542 to rotate, thereby making the lifting seat 543 move up and down along the lifting screw rod 542. The connecting part 531 of the guide rod 53 slides in the sliding groove 5431 of the lifting seat 543, so that the sliding column 532 of the guide rod 53 slides along the arc-shaped part 521 of the guide groove 52. When the guide rod 53 reaches the end of the arc-shaped part 521, it smoothly transitions to the longitudinal part 522 and continues to slide along the longitudinal part 522, thereby vertically lifting the tool magazine door 3 and completing the opening operation.

[0029] As shown in Figure 2As shown, the bearing plate 51 of the embodiment corresponds to the bottom and top positions of the lifting screw rod 542 and is provided with limit switches 6. The bottom limit switch 6 provided at the bottom position of the lifting screw rod 542 is used to detect whether the lifting seat 543 reaches the lowest point, and the top limit switch 6 provided at the top position of the lifting screw rod 542 is used to detect whether the lifting seat 543 reaches the highest point. The limit switch 6 can detect the specific position of the lifting seat 543 on the lifting screw rod 542 and send a signal when reaching the limit position. The control system receives the signal and stops the operation of the driving motor 541, preventing damage caused by overstroke.

[0030] As shown in the drawings, Figure 1 Figure 3 As shown, the base 1 of the embodiment is provided with a plurality of sliding grooves 7 along the sliding direction of the tool magazine seat 4, and a sliding rail 8 is provided at the bottom of the tool seat and connected to the sliding groove 7, and a push cylinder 9 is also provided in the tool magazine protection cabin 2 and fixedly connected to the tail end of the tool magazine seat 4. The base 1 is provided with a plurality of sliding grooves 7 along the sliding direction of the tool magazine seat 4, which provides a guide path for the movement of the tool magazine seat 4. The tool magazine seat 4 is provided with a sliding rail 8 at the bottom, which is embedded in the sliding groove 7, ensuring that the tool magazine seat 4 can slide smoothly along the predetermined path. The push cylinder 9 is provided in the tool magazine protection cabin 2 and fixedly connected to the tail end of the tool magazine seat 4, which can drive the tool magazine seat 4 to slide along the sliding groove 7, realizing the extension and retraction of the tool magazine seat 4.

[0031] Further, the sliding groove 7 and the sliding rail 8 are provided with a plurality of parallel arrangements. The plurality of parallel arrangements of the sliding groove 7 and the sliding rail 8 provide a more precise guide path, ensuring that the tool magazine seat 4 does not deviate from the predetermined track during movement, improving the positioning accuracy.

[0032] In summary, the beneficial effects of the embodiment are: the arc-shaped part 521 and the longitudinal part 522 of the guide groove 52 can divide the opening and closing process of the tool magazine door 3 into two sections, first pushing out a small amplitude along the arc-shaped part 521 and then vertically lifting, which can reduce the opening amplitude and avoid collision with other parts of the numerical control machine tool. The bottom and top limit switches 6 can detect the specific position of the lifting seat 543 and stop the operation of the driving motor 541 when reaching the limit position, preventing damage caused by overstroke. The plurality of parallel arrangements of the sliding groove 7 and the sliding rail 8 provide a precise guide path, ensuring that the tool magazine seat 4 does not deviate from the predetermined track during movement, improving the positioning accuracy.

[0033] The above-described embodiments are only preferred embodiments of the present application, and cannot be used to limit the protection scope of the present application. Any non-essential changes and modifications made by those skilled in the art based on the application shall fall within the protection scope of the present application.​

Claims

1. A tool magazine protection structure for a numerical control machine tool, comprising a base, a tool magazine protection cabin covered on the base, a tool magazine door provided on one side of the tool magazine protection cabin, and a tool magazine seat slidingly installed on the base, characterized in that, The opening and closing mechanism for automatically opening or closing the tool magazine door is arranged between the tool magazine protection cabin and the tool magazine door, and comprises a bearing plate fixed to the inner walls on both sides of the tool magazine protection cabin, a guide groove arranged on the bearing plate, guide rods arranged on both sides of the tool magazine door and inserted into the guide groove, and a driving assembly for driving the guide rods to slide along the guide groove, wherein the guide groove comprises an arc-shaped portion and a longitudinal portion connected above the arc-shaped portion.

2. The tool magazine protection structure for a numerical control machine tool according to claim 1, characterized in that, The driving assembly comprises a driving motor fixed to the bearing plate, a lifting screw rod arranged in an up-down extending manner and in transmission connection with the driving motor, and a lifting seat in screw transmission connection with the lifting screw rod, wherein the lifting seat is in sliding connection with the guide rod.

3. The tool magazine protection structure for a numerically controlled machine tool according to claim 2, characterized in that, The lifting seat is internally provided with a sliding groove, the guide rod comprises a connecting portion fixedly connected with the tool magazine door and a sliding column slidingly embedded into the guide groove, and the connecting portion is slidingly installed into the sliding groove.

4. The tool magazine protection structure for a numerically controlled machine tool according to claim 3, characterized in that, Limit switches are arranged on the bearing plate corresponding to the bottom and top positions of the lifting screw rod.

5. The tool magazine protection structure for a numerically controlled machine tool according to claim 1, characterized in that, The base is provided with a plurality of sliding grooves along the sliding direction of the tool magazine seat, the tool magazine seat is provided at the bottom with sliding rails slidingly connected into the sliding grooves, and the tool magazine protection cabin is further provided with a pushing cylinder fixedly connected with the tail end of the tool magazine seat.

6. The tool magazine guard structure for a numerically controlled machine tool according to claim 5, characterized by The sliding grooves and the sliding rails are provided in multiple, and the sliding grooves are arranged in parallel.

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