Horizontal machining center tool breakage detection structure

Abstract

This utility model relates to the field of tool breakage detection technology, and in particular to a tool breakage detection structure for a horizontal machining center. It includes a housing and a tool holder, with two housings fixedly connected to both ends of the tool holder. An adjustment structure is provided inside each housing. The adjustment mechanism includes an extraction cylinder, a piston plate, a slide rod, a connecting block, and a drying chamber. Through the cooperation of the rotating rod, drying ring, and extraction cylinder, this utility model continuously drives the two extraction cylinders to alternately and uninterruptedly extract gas during cutting. After absorption and drying by the drying ring, the clean and dry gas is continuously blown in front of the lens for detection, forming a gas barrier layer. This prevents cutting fluid and debris from flying in front of the lens, avoiding false alarms and ensuring a clean and dry surface that requires no cleaning, thus maintaining excellent analytical and detection capabilities.

Description

Technical Field

[0001] This utility model relates to the field of tool breakage detection technology, and in particular to a tool breakage detection structure for a horizontal machining center. Background Technology

[0002] During operation, machining centers may experience tool breakage or fracture, especially drilling and tapping tools. If these tools break or are damaged, continued use will damage the workpiece. Currently, the main methods for detecting tool breakage are contact probes, laser detection, or power detection. Laser detection has a faster detection speed and quicker response, making it a commonly used detection method in high-speed machining.

[0003] Existing laser detection methods involve emitting a laser beam at one end towards the tool location. When the tool is intact, the receiving position at the other end will not receive a signal. If the tool breaks and the laser beam is no longer blocked, a signal will be received and an alarm will be triggered immediately. However, during machining, cutting fluid and debris can splash into the lens and accumulate, reflecting and blocking the signal. Even if the tool breaks, no signal will be received, leading to false alarms. At the same time, the sprayed coolant can also increase the ambient humidity, causing it to atomize in front of the lens and form an oil film that blocks the lens, which can also lead to false alarms. Utility Model Content

[0004] The purpose of this invention is to address the following shortcomings in the prior art: during machining, cutting fluid and debris splash into the lens and accumulate, reflecting and blocking the signal. No signal is received after the tool breaks, leading to misjudgment. At the same time, the sprayed coolant also increases the ambient humidity, atomizes in front of the lens, and forms an oil film that obscures the lens, which can also cause misjudgment. Therefore, this invention proposes a tool breakage detection structure for horizontal machining centers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A tool breakage detection structure for a horizontal machining center includes a housing and a tool holder, with two housings fixedly connected to both ends of the tool holder;

[0007] The housing is provided with an adjustment structure, which includes an extraction cylinder, a piston plate, a slide rod, a connecting block, and a drying chamber. The two extraction cylinders are respectively fixedly connected to both ends of the inner sidewall of the housing. The piston plate is slidably connected to the inner sidewall of the extraction cylinder. The slide rod is fixedly connected to the sidewall of the piston plate and slidably connected to one sidewall of the extraction cylinder. The connecting block is fixedly connected between the two slide rods. The drying chamber is fixedly connected to the inner sidewall of the housing.

[0008] Preferably, a drying rod is rotatably connected to the inner sidewall of the housing, the drying rod is rotatably connected to the sidewall of the drying chamber, and a drying ring is fixedly connected to the sidewall of the drying rod.

[0009] Preferably, a rotating rod is rotatably connected to the inner wall of the housing, a motor is provided on the inner wall of the tool holder, a drive rod is fixedly connected to the output end of the motor, and belts are respectively sleeved between the drive rod and the two rotating rods.

[0010] Preferably, a drive gear is fixedly connected to the outer surface of the rotating rod, and a driven gear is fixedly connected to the outside of the drying rod, with the drive gear meshing with the driven gear.

[0011] Preferably, a turntable is fixedly connected to the end of the rotating rod away from the driving gear, and a connecting rod is hinged between the turntable and the connecting block. A laser emitting body is fixedly connected to the side wall of one of the housings, and a laser detection body is fixedly connected to the side wall of the other housing.

[0012] Preferably, an air inlet pipe is fixedly connected to the side wall of the extraction cylinder, and an air outlet pipe is fixedly connected between the side wall of the extraction cylinder and the drying chamber. Both the air inlet pipe and the air outlet pipe are equipped with one-way valves.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. Through the cooperation of structures such as the rotating rod, drying ring, and extraction cylinder, the two extraction cylinders are continuously driven to extract gas alternately and without interruption during the cutting process. After being absorbed and dried by the drying ring, the clean and dry gas is continuously blown in front of the lens for emission and detection, forming a gas barrier layer. This prevents cutting fluid and debris from flying in front of the lens and absorbing and reflecting the laser, avoiding false judgments and delayed alarms. It also keeps the surface clean and dry, requiring no cleaning and maintaining good analytical and detection capabilities at all times.

[0015] 2. Through the cooperation of drive rods, belts, rotating rods and other structures, the motor drives the tool to rotate and cut at the same time, and the drive device runs synchronously. There is no need to configure an additional power unit to drive the device to move. At the same time, cutting and air blowing are also synchronized, and cleaning and cutting are carried out simultaneously, which is more energy-saving and environmentally friendly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the shell structure of a tool breakage detection structure for a horizontal machining center proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the belt structure of a tool breakage detection structure for a horizontal machining center proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the active gear structure of a tool breakage detection structure for a horizontal machining center proposed in this utility model;

[0019] Figure 4 for Figure 3 A magnified view of part A in the image.

[0020] In the diagram: 1. Housing, 2. Tool holder, 3. Extraction cylinder, 4. Piston plate, 5. Slide rod, 6. Connecting block, 7. Drying chamber, 8. Drying rod, 9. Drying ring, 10. Rotating rod, 11. Drive rod, 12. Belt, 13. Drive gear, 14. Driven gear, 15. Turntable, 16. Laser emitting body, 17. Laser detection body, 18. Inlet pipe, 19. Outlet pipe, 20. Connecting rod. Detailed Implementation

[0021] 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.

[0022] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0023] Reference Figures 1-4 A tool breakage detection structure for a horizontal machining center includes a housing 1 and a tool holder 2 (the tool holder 2 is a power tool holder 2 used to drive the tool to move for cutting, which is existing technology and will not be described in detail here). The two housings 1 are fixedly connected to both ends of the tool holder 2. An adjustment structure is provided inside the housing 1. The adjustment mechanism includes an extraction cylinder 3, a piston plate 4, a slide rod 5, a connecting block 6, and a drying chamber 7. The two extraction cylinders 3 are respectively fixedly connected to both ends of the inner sidewall of the housing 1. The piston plate 4 is slidably and sealingly connected to the inner sidewall of the extraction cylinder 3. The slide rod 5 is fixedly connected to the sidewall of the piston plate 4. The slide rod 5 is connected to one side of the extraction cylinder 3. The wall is slidably connected, and the slide rod 5 and the extraction cylinder 3 are not sealed. The connecting block 6 is fixedly connected between the two slide rods 5. The drying chamber 7 is fixedly connected to the inner wall of the housing 1. The drying chamber 7 is a hollow chamber formed by two hollow rectangles. The outer rectangular part is narrower and a square opening is provided on the side wall so that the blown gas is directed in front of the lens of the laser emitting body 16 and the laser detection body 17, forming a gas barrier layer to prevent cutting fluid and debris from flying to the lens and adhering to the lens. At the same time, a small amount of gas is blown on the lens to keep its surface clean and dry, and to prevent water droplets from forming a water film in front of the lens due to high humidity.

[0024] A drying rod 8 is rotatably connected to the inner wall of the housing 1. The drying rod 8 is rotatably connected to the side wall of the drying chamber 7 in a sealed manner. A drying ring 9 is fixedly connected to the side wall of the drying rod 8. Molecular sieves and filter screens are provided on the inner wall of the drying ring 9 to absorb and filter moisture and impurities, so that the blown air remains clean and dry.

[0025] A rotating rod 10 is rotatably connected to the inner wall of the housing 1. A motor is provided on the inner wall of the tool holder 2. A drive rod 11 is fixedly connected to the output end of the motor. A belt 12 is respectively sleeved between the drive rod 11 and the two rotating rods 10. Receiving grooves are opened at both ends of the tool holder 2. The belt 12 passes through the receiving grooves. Pulleys are provided on the drive rod 11 and the rotating rods 10 respectively, so that the belt 12 runs smoothly.

[0026] A drive gear 13 is fixedly connected to the outer surface of the rotating rod 10, and a driven gear 14 is fixedly connected to the outside of the drying rod 8. The drive gear 13 and the driven gear 14 are meshed together. The diameter of the driven gear 14 is much larger than that of the drive gear 13, which slows down the drying rod 8 and causes it to drive the drying ring 9 to rotate slowly.

[0027] A turntable 15 is fixedly connected to the end of the rotating rod 10 away from the drive gear 13. A connecting rod 20 is hinged between the turntable 15 and the connecting block 6. A laser emitting body 16 is fixedly connected to the side wall of one of the housings 1, and a laser detection body 17 is fixedly connected to the side wall of the other housing 1. (The laser path of the laser emitting body 16 is just covered by the cutting tool. When the laser detection body 17 receives the laser signal emitted by the laser emitting body 16, it will immediately alarm if the tool is broken. Otherwise, it will be normal. These are all existing technologies and will not be described in detail here.)

[0028] An air inlet pipe 18 is fixedly connected to the side wall of the extraction cylinder 3, and an air outlet pipe 19 is fixedly connected between the side wall of the extraction cylinder 3 and the drying chamber 7. Both the air inlet pipe 18 and the air outlet pipe 19 are equipped with one-way valves. The flow direction of the one-way valve in the air inlet pipe 18 is from the outside to the inside of the extraction cylinder 3, and the flow direction of the one-way valve in the air outlet pipe 19 is from the extraction cylinder 3 to the inside of the drying chamber 7.

[0029] In this utility model, when a cutting tool is clamped on the tool holder 2 for machining, the starting motor drives the drive rod 11 to rotate, which in turn drives the cutting tool to move and cut. Simultaneously, the belt 12 drives the rotating rod 10 to rotate, which in turn drives the turntable 15 to rotate. The turntable 15 then drives the connecting rod 20 to reciprocate the connecting block 6. When the connecting block 6 is pushed to the right, it causes both sliding rods 5 and the piston plate 4 to move to the right. The one-way valve in the air inlet pipe 18 inside the right extraction cylinder 3 closes, and the air outlet pipe 19... The inner one-way valve opens, and the gas in the right extraction cylinder 3 enters the drying chamber 7 through the outlet pipe 19. The one-way valve in the inlet pipe 18 of the left extraction cylinder 3 opens, and the one-way valve in the outlet pipe 19 closes, allowing outside air to enter the left extraction cylinder 3 through the inlet pipe 18. With the continuous reciprocating motion of the connecting block 6, the two extraction cylinders 3 alternately and continuously draw gas into the drying chamber 7. The gas passes through the drying ring 9, where the molecular sieve adsorbent absorbs moisture and impurities, keeping the blown-out air clean and dry. The rotation of rod 10 drives the rotation of the active gear 13, which in turn drives the passive gear 14, the drying rod 8, and the drying ring 9 to rotate. The diameters of the active gear 13 and the passive gear 14 are very small, which allows the drying rod 8 to drive the drying ring 9 to move slowly. This allows the molecular sieve and other adsorbents on the drying ring 9 to move evenly and slowly from in front of the gas outlet pipe 19, preventing localized accumulation of absorbed moisture. This ensures that the drying ring 9 can absorb moisture and impurities evenly, resulting in good absorption. The dry gas is sprayed out through the square opening of the drying chamber 7 and directed towards the lenses of the laser emitting body 16 and the laser detection body 17, forming a gas barrier. This prevents cutting fluid and debris from flying to the lenses and adhering to them, thus absorbing and reflecting the laser and preventing misjudgment. The dry and clean gas also blows on the lenses, preventing condensation and fogging due to high humidity and preventing atomized water droplets from covering the lenses, thus avoiding misjudgment. This keeps the lenses clean and tidy, requiring no cleaning and maintaining good analytical and detection capabilities.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.

[0031] 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.

Claims

1. A horizontal machining center tool breakage detection structure comprising a housing (1) and a tool holder (2), characterized in that, The two housings (1) are fixedly connected to both ends of the tool holder (2); The housing (1) is provided with an adjustment structure, which includes an extraction cylinder (3), a piston plate (4), a slide rod (5), a connecting block (6), and a drying chamber (7). The two extraction cylinders (3) are respectively fixedly connected to the two ends of the inner sidewall of the housing (1). The piston plate (4) is slidably connected to the inner sidewall of the extraction cylinder (3). The slide rod (5) is fixedly connected to the sidewall of the piston plate (4). The slide rod (5) is slidably connected to one sidewall of the extraction cylinder (3). The connecting block (6) is fixedly connected between the two slide rods (5). The drying chamber (7) is fixedly connected to the inner sidewall of the housing (1).

2. A tool breakage detection structure for a horizontal machining center according to claim 1, characterized in that, A drying rod (8) is rotatably connected to the inner wall of the housing (1), and the drying rod (8) is rotatably connected to the side wall of the drying chamber (7). A drying ring (9) is fixedly connected to the side wall of the drying rod (8).

3. A tool breakage detection structure for a horizontal machining center according to claim 2, characterized in that, A rotating rod (10) is rotatably connected to the inner wall of the housing (1), and a motor is provided on the inner wall of the tool holder (2). A drive rod (11) is fixedly connected to the output end of the motor, and belts (12) are respectively sleeved between the drive rod (11) and the two rotating rods (10).

4. The tool breakage detection structure of claim 3, wherein The outer surface of the rotating rod (10) is fixedly connected to a drive gear (13), and the outside of the drying rod (8) is fixedly connected to a driven gear (14). The drive gear (13) and the driven gear (14) are meshed together.

5. A tool breakage detection structure for a horizontal machining center according to claim 4, characterized in that, A turntable (15) is fixedly connected to one end of the rotating rod (10) away from the driving gear (13). A connecting rod (20) is hinged between the turntable (15) and the connecting block (6). A laser emitting body (16) is fixedly connected to the side wall of one of the housings (1), and a laser detection body (17) is fixedly connected to the side wall of the other housing (1).

6. The tool breakage detection structure of claim 1, wherein An air inlet pipe (18) is fixedly connected to the side wall of the extraction cylinder (3), and an air outlet pipe (19) is fixedly connected between the side wall of the extraction cylinder (3) and the drying chamber (7). Both the air inlet pipe (18) and the air outlet pipe (19) are equipped with one-way valves.

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