Anti-collision tool magazine tool detection device

Abstract

The utility model discloses an anti-collision tool magazine tool detection device, and belongs to the technical field of machine tool magazine tools. An anti-collision tool magazine tool detection device comprises a tool magazine and a detection assembly arranged at a tool changing position of the tool magazine, the detection assembly is installed on the surface of a front trim panel, the detection assembly corresponds to the tool changing position of the tool magazine, and the detection assembly comprises a correlation infrared sensor and a connecting frame used for installing the correlation infrared sensor. The connecting frame is driven by the lifting assembly to ascend and descend so as to adapt to tools of different lengths. By arranging the correlation infrared sensor, the detection light is formed between the tool magazine and the tool shaft of the machine tool, whether the tool is broken or not is synchronously detected during tool changing, the tool changing work is not affected while the tool is detected, and the tool disc of the tool magazine can continue to rotate for tool changing.

Description

Technical Field

[0001] This utility model relates to the field of machine tool tool magazine technology, and in particular to a collision-proof tool magazine tool detection device. Background Technology

[0002] CNC machine tools are an important basic equipment in modern industry and a means of production for various pillar industries such as automobiles, aerospace, mold making, and electronics. The tool magazine is one of its most important components.

[0003] Commonly used tool magazines on the market can only perform simple tool changing and cannot monitor the status of the tools in the magazine. However, many parts are processed in complex ways, and a variety of tools are used in large quantities. If a tool breaks during processing and is not detected, a collision can easily occur when the next tool is used after the tool change, resulting in losses.

[0004] Current tool breakage detection equipment on the market stops processing during the detection process, occupying processing time. Furthermore, some detection equipment performs the detection on the tool that has just been replaced after the tool has been changed. At this time, the next tool has already started processing. If the detection result is that the tool is broken, a tool collision accident may have already occurred, and the loss may be irreparable.

[0005] Therefore, this application proposes a tool magazine tool detection device that can detect whether a tool is broken during tool changing. Utility Model Content

[0006] The purpose of this invention is to solve the problems in the prior art by proposing a collision-resistant tool magazine detection device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A collision-resistant tool magazine detection device includes a tool magazine and a detection component disposed at the tool magazine changing position. The detection component is mounted on the surface of the front trim panel and corresponds to the tool magazine changing position. The detection component includes a through-beam infrared sensor and a connecting bracket for mounting the through-beam infrared sensor. The connecting bracket is driven to rise and fall by a lifting component to accommodate tools of different lengths.

[0009] In some embodiments, the end of the connecting frame away from the tool magazine has a U-shaped cross-section, the through-beam infrared sensor is installed on the upper end of the connecting frame, and the through-beam infrared sensor is located between the tool magazine changing position and the machine tool spindle.

[0010] In some embodiments, the lifting assembly includes a threaded post that rotates on the inner wall of the front trim panel and a lifting block threadedly connected to the surface of the threaded post, with the connecting frame disposed at one end of the lifting block.

[0011] In some embodiments, the tool magazine has hinged doors on both sides, which are rotatably connected to the slide via connecting arms and guide grooves. The connecting arms rotate on the upper surface of the slide, and the other end of the connecting arms rotates on the surface of the door. The guide groove is arc-shaped and is formed on the upper surface of the slide. The end of the connecting arm that is rotatably connected to the door slides inside the guide groove.

[0012] In some embodiments, the connecting frame slides inside the lifting block at one end facing the lifting block, and the lifting block is provided with a spring for pushing the connecting frame to slide outward. The two door covers push the connecting frame to retract into the lifting block through the avoidance component.

[0013] In some embodiments, the avoidance assembly includes a stop fixed to the lower surface of the connecting frame and push rods that rotate on the inner walls of two door covers, the two push rods being located at the bottom of the door covers for pushing the stop.

[0014] In some embodiments, the stop block has a groove on the side facing the push rod, the groove being V-shaped, and the end of the push rod that engages with the stop block being V-shaped. The push rod rotates at the bottom of the door cover via a pivot, and the surface of the pivot is provided with a torsion spring for driving the push rod to rotate outward from the door cover.

[0015] In some embodiments, a nozzle for blowing out high-pressure gas is fixed on the upper surface of the lifting block, and the height of the nozzle is the same as the detection light height of the through-beam infrared sensor.

[0016] Compared with the prior art, the present invention provides a collision-proof tool magazine tool detection device, which has the following beneficial effects.

[0017] 1. This utility model, by setting up a through-beam infrared sensor, forms a detection light beam between the tool magazine and the machine tool spindle. During tool changing, it synchronously detects whether the tool is broken. While detecting the tool, it does not affect the tool changing operation. The tool magazine's tool turret can continue to rotate for tool changing.

[0018] 2. This utility model, by setting up a lifting component, enables the lifting block to drive the connecting frame and the through-beam infrared sensor to rise to a height level with the tip of the tool, and to detect during tool changing, so that the height of the through-beam infrared sensor can be adjusted according to the length of different tools.

[0019] Other advantages, objectives and features of this invention will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the following description; or may be taught from practice of this invention. Attached Figure Description

[0020] Figure 1This is a front view structural diagram of the present invention.

[0021] Figure 2 This is a top view of the structure of this utility model.

[0022] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0023] Figure 4 This is a partial structural schematic diagram of the side cross-section of this utility model.

[0024] Figure 5 This is a partial structural diagram of the present invention viewed from below.

[0025] Figure 6 This is a structural schematic diagram of the door cover of this utility model.

[0026] Figure 7 This utility model Figure 6 Enlarged structural diagram at point B.

[0027] Figure 8 This is a schematic diagram of the structure of the door cover in the present invention when it is closed, viewed from below.

[0028] In the picture:

[0029] 1. Fixed base; 2. Slide base; 3. Door cover; 301. Connecting arm; 302. Guide groove; 4. Front trim panel; 5. Detection assembly; 501. Connecting frame; 502. Through-beam infrared sensor; 503. Lifting assembly; 5031. Threaded column; 5032. Lifting block; 5033. Guide rod; 6. Avoidance assembly; 601. Stop block; 6011. Groove; 602. Push rod; 6021. Torsion spring; 7. Nozzle; 701. Solenoid valve. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] Reference Figure 1-8 A collision-proof tool magazine detection device includes a tool magazine and a detection component 5 disposed at the tool magazine changing position. The tool magazine includes a fixed base 1 and a slide block 2 that slides above the fixed base 1. The slide block 2 slides on the surface of the fixed base 1 by a slider and a slide rail. The slide block 2 is driven by an electric push rod 602. The tool magazine is existing technology and will not be described in detail. A front trim panel 4 for shielding the tool disc is fixed on the surface of the slide block 2. The front trim panel 4 is arc-shaped. The detection component 5 is installed on the surface of the front trim panel 4 and corresponds to the tool magazine changing position.

[0032] The detection component 5 includes a through-beam infrared sensor 502 and a connecting frame 501 for mounting the through-beam infrared sensor 502. The connecting frame 501 is driven to rise and fall by the lifting component 503 to accommodate tools of different lengths. The end of the connecting frame 501 away from the tool magazine has a U-shaped cross section. The through-beam infrared sensor 502 is mounted on the upper end of the connecting frame 501. The through-beam infrared sensor 502 is located between the tool magazine and the machine tool spindle.

[0033] The lifting assembly 503 includes a threaded post 5031 that rotates on the inner wall of the front trim panel 4 and a lifting block 5032 that is threadedly connected to the surface of the threaded post 5031. A connecting frame 501 is provided at one end of the lifting block 5032. The lifting block 5032 is T-shaped and slides on the surface of the guide rod 5033. The guide rod 5033 is fixed to the inner wall of the front trim panel 4. A bevel gear is fixed at the upper end of the threaded rod. A drive motor is fixed to the inner wall of the front trim panel 4. Another bevel gear is fixed at one end of the output shaft of the drive motor. The two bevel gears mesh with each other.

[0034] Understandably, by setting up a through-beam infrared sensor 502, a detection light beam is formed between the tool magazine and the machine tool spindle. When changing tools, if the tool tip passes through the detection light beam, it indicates that the tool is not broken, and normal tool changing and machining can proceed. If the tool is not detected passing through the detection light beam, it indicates that the tool is broken, and machining is stopped. The tool is then inspected to prevent tool collision accidents. While detecting the tool, the tool changing operation is not affected, and the tool magazine's tool head can continue to rotate for tool changing.

[0035] Since the tool lengths differ for each machining operation, a lifting assembly 503 is installed to allow the through-beam infrared sensor 502 to adjust to the tool length. The control of the lifting assembly 503 is integrated into the machine tool's coordinate system. The machine tool sets the tool length coordinates during tool setting. When machining with different tools, the corresponding coordinates are called to achieve automatic machining. Therefore, the control system of the lifting assembly 503 is integrated into the machine tool's coordinate system. After each tool change, the tool coordinates are shared with the control system of the lifting assembly 503. During the next tool change, the drive motor rotates the threaded column 5031, causing the lifting block 5032 to raise the connecting frame 501 and the through-beam infrared sensor 502 to a height level with the tool tip. Detection is performed during the tool change process, allowing the height of the through-beam infrared sensor 502 to adjust to the length of different tools.

[0036] Specifically, the fixed base 1 has side plates fixed on both sides, and the two side plates have door covers 3 that rotate on their surfaces via hinges. When the two door covers 3 are combined, they cover and protect the tool magazine. The door covers 3 are connected to the slide 2 via a connecting arm 301 and a guide groove 302. The connecting arm 301 rotates on the upper surface of the slide 2, and the other end of the connecting arm 301 rotates on the surface of the door cover 3. The guide groove 302 is arc-shaped and is opened on the upper surface of the slide 2. The end of the connecting arm 301 that is rotatably connected to the door cover 3 slides inside the guide groove 302.

[0037] The end of the connecting frame 501 facing the lifting block 5032 slides inside the lifting block 5032. The lifting block 5032 is equipped with a spring for pushing the connecting frame 501 to slide outward. The two door covers 3 push the connecting frame 501 to retract into the lifting block 5032 through the avoidance component 6.

[0038] Understandably, because the connecting frame 501 and the through-beam infrared sensor 502 are outside the tool magazine range, they cause an impact when the door cover 3 is closed, preventing the door cover 3 from closing completely. Therefore, by setting the avoidance component 6, when the tool magazine is reset, the electric push rod 602 drives the slide 2 to retract, and the slide 2 pulls the connecting arm 301. With the cooperation of the guide groove 302, the connecting arm 301 pulls the door cover 3 to slide on the inner wall of the guide groove 302, thereby closing the door cover 3. When the door cover 3 is about to be completely closed, the avoidance component 6 pushes the connecting frame 501 to slide on the inner wall of the lifting block 5032, thereby retracting the through-beam infrared sensor 502 into the tool magazine, so that the door cover 3 can be completely closed.

[0039] Specifically, the avoidance component 6 includes a stop 601 fixed to the lower surface of the connecting frame 501 and push rods 602 that rotate on the inner walls of the two door covers 3 respectively. The two push rods 602 are located at the bottom of the door cover 3 and are used to push the stop 601.

[0040] Understandably, reference Figure 5 or Figure 7 After the tool is inspected, the connecting frame 501 is lowered to the bottom to prevent the next tool change from colliding with the connecting frame 501. When the door covers 3 approach each other, the two push rods 602 approach each other. When the two door covers 3 are about to contact each other, the two push rods 602 first collide. As the door covers 3 continue to close, the two push rods 602 change angles as they collide, so that the collided ends of the push rods 602 move towards the stop block 601. The push rods 602 push the stop block 601 and the connecting frame 501 to slide on the inner wall of the lifting block 5032, thereby pushing the connecting frame 501 and the through-beam infrared sensor 502 into the two door covers 3, so that the door covers 3 are completely closed, which can protect the infrared through-beam sensor.

[0041] Specifically, the stop block 601 has a groove 6011 on the side facing the push rod 602. The groove 6011 is V-shaped. The end of the push rod 602 that cooperates with the stop block 601 is also V-shaped. The push rod 602 rotates at the bottom of the door cover 3 via a pivot. A torsion spring 6021 is provided on the surface of the pivot to drive the push rod 602 to rotate outward from the door cover 3.

[0042] It is understandable that by setting the groove 6011, when the push rod 602 abuts against the surface of the stop block 601, the groove 6011 limits the two push rods 602, thereby improving the cooperation effect. By setting the torsion spring 6021, it is convenient for the push rod 602 to automatically reset after separating from the stop block 601.

[0043] Specifically, a nozzle 7 for blowing out high-pressure air is fixed on the upper surface of the lifting block 5032. The nozzle 7 is connected to the high-pressure air system of the machine tool. A solenoid valve 701 is provided on the surface of the nozzle 7. The height of the nozzle 7 is the same as the detection light height of the through-beam infrared sensor 502.

[0044] Understandably, after machining, the tool tip may have residual iron filings or cutting fluid, which can affect the actual detection of the tool by the detection light. Therefore, when changing tools, high-pressure air is sprayed through nozzle 7 to clean the tool, thereby maintaining the accuracy of tool detection.

[0045] In this invention, during tool changing, the tool magazine moves to its position inside the machine tool, the two door covers 3 separate, and the two push rods 602 separate from the stop block 601. This causes the spring to push the connecting frame 501 and the through-beam infrared sensor 502 to extend between the tool magazine's position and the machine tool's tool axis. The height of the through-beam infrared sensor 502 is adjusted to the height of the tool tip according to the coordinates of the tool inside the machine tool. During tool changing, if the tool tip passes through the detection light, it indicates that the tool is not broken, and normal tool changing and machining can proceed. If the tool is not detected passing through, it indicates that the tool is broken, machining is stopped, the tool is inspected, and a collision accident is prevented. While detecting the tool, the tool changing process is not affected; the tool magazine's tool disc can continue to rotate for tool changing. Simultaneously, during tool changing, high-pressure air is sprayed through the nozzle 7 to clean the tool. This ensures the accuracy of tool detection. After detection, the connecting frame 501 and the through-beam infrared sensor 502 descend synchronously with the tool changing process to prevent collisions between the connecting frame 501 and the next tool changing process. When the tool magazine retracts, the two door covers 3 move closer to each other, causing the two push rods 602 to move closer to each other. When the two door covers 3 are about to contact each other, the two push rods 602 first collide. As the door covers 3 continue to close, the two push rods 602 change their angle as they collide, causing the collided ends of the push rods 602 to move towards the stop block 601. The push rods 602 push the stop block 601 and the connecting frame 501 to slide on the inner wall of the lifting block 5032, thereby pushing the connecting frame 501 and the through-beam infrared sensor 502 into the two door covers 3, making the door covers 3 completely closed, which can protect the infrared through-beam sensor.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0047] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples; although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A collision-resistant tool magazine tool detection device, characterized in that, The device includes a tool magazine and a detection component (5) located at the tool magazine changing position. The detection component (5) is mounted on the surface of the front trim panel (4) and corresponds to the tool magazine changing position. The detection component (5) includes a through-beam infrared sensor (502) and a connecting bracket (501) for mounting the through-beam infrared sensor (502). The connecting bracket (501) is driven to rise and fall by a lifting component (503) to accommodate tools of different lengths.

2. The anti-collision tool magazine detection device according to claim 1, characterized in that, The connecting frame (501) has a U-shaped cross-section at the end away from the tool magazine. The through-beam infrared sensor (502) is installed on the upper end of the connecting frame (501) and is located between the tool magazine and the machine tool spindle.

3. The anti-collision tool magazine detection device according to claim 1, characterized in that, The lifting assembly (503) includes a threaded post (5031) that rotates on the inner wall of the front trim panel (4) and a lifting block (5032) that is threadedly connected to the surface of the threaded post (5031). The connecting frame (501) is located at one end of the lifting block (5032).

4. The anti-collision tool magazine detection device according to claim 1, characterized in that, The tool magazine has hinged doors (3) on both sides. The doors (3) are connected to the slide (2) via a connecting arm (301) and a guide groove (302). The connecting arm (301) rotates on the upper surface of the slide (2), and the other end of the connecting arm (301) rotates on the surface of the doors (3). The guide groove (302) is arc-shaped and is located on the upper surface of the slide (2). The end of the connecting arm (301) that is rotatably connected to the doors (3) slides inside the guide groove (302).

5. The anti-collision tool magazine detection device according to claim 4, characterized in that, The connecting frame (501) slides inside the lifting block (5032) at one end facing the lifting block (5032). The lifting block (5032) is provided with a spring for pushing the connecting frame (501) to slide outward. The two door covers (3) push the connecting frame (501) to retract into the lifting block (5032) through the avoidance component (6).

6. The anti-collision tool magazine detection device according to claim 5, characterized in that, The avoidance component (6) includes a stop (601) fixed to the lower surface of the connecting frame (501) and push rods (602) that rotate on the inner walls of the two door covers (3), respectively. The two push rods (602) are located at the bottom of the door cover (3) and are used to push the stop (601).

7. The anti-collision tool magazine detection device according to claim 6, characterized in that, The stop block (601) has a groove (6011) on the side facing the push rod (602). The groove (6011) is V-shaped. The end of the push rod (602) that cooperates with the stop block (601) is V-shaped. The push rod (602) rotates at the bottom of the door cover (3) via a rotating shaft. The surface of the rotating shaft is provided with a torsion spring (6021) for driving the push rod (602) to rotate outward of the door cover (3).

8. The anti-collision tool magazine detection device according to claim 3, characterized in that, The upper surface of the lifting block (5032) is fixed with a nozzle (7) for blowing out high-pressure gas. The height of the nozzle (7) is the same as the detection light height of the through-beam infrared sensor (502).

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