A linear tool changing system for cutting tables

Abstract

The embodiment of the present invention discloses a linear tool changing system for a cutting table, comprising a cutter head, a tool changing mechanism and a tool magazine mechanism, wherein the cutter head comprises a tool holder and a tool locking mechanism, the tool holder is provided with a tool slot, and the tool locking mechanism comprises a tool locking screw sleeve and a tool locking bolt; the tool changing mechanism comprises a machine base, a linear slide, a tool locking drive mechanism and a blade fixing mechanism, the linear slide is provided in front of the machine base and abuts against the front surface of the machine base, the linear slide can slide left and right relative to the machine base, and the interface between the linear slide and the machine base is provided with a blade slot; the tool magazine mechanism can drive the blade to be delivered from the tool magazine mechanism; the blade fixing mechanism has a positioning rod; and the tool magazine mechanism is provided on the machine base. Through the cooperation of the tool changing mechanism and the tool magazine mechanism, the blade in the cutter head can be automatically replaced without manual intervention, and the newly installed blade can be reliably fixed on the cutter head, ensuring the reliable operation of the cutting table.

Description

Technical Field

[0001] This invention relates to an auxiliary device for a cutting table, and more particularly to a linear tool changing system for a cutting table. Background Art

[0002] Existing cutting machines are devices that cut materials by high-speed vibration of cutting blades. Because the cutting blades require high-speed vibration, the blade head is mainly fixed mechanically, making it difficult to install electronic blade locking devices. When it is necessary to replace the cutting blade, the blade on the cutting head must be manually removed, and then a new cutting blade must be installed and locked, which takes a long time and is not conducive to unmanned operation of the cutting machine. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a linear blade changing system for cutting beds, which can automatically replace blades in the cutting head without manual intervention. The newly installed blades can be reliably fixed to the cutting head, ensuring reliable operation of the cutting bed.

[0004] To solve the above-mentioned technical problems, embodiments of the present invention provide a linear cutting tool changing system for a cutting bed, including a cutting head, a tool changing mechanism, and a tool holder mechanism. The cutting head includes a tool holder and a tool locking mechanism. The tool holder is provided with a tool groove for accommodating the blade. The tool locking mechanism includes a tool locking sleeve and a tool locking bolt. The tool locking bolt is used to lock the blade in the tool groove.

[0005] The tool changing mechanism includes a base, a linear slide, a tool locking drive mechanism, a tool holder drive mechanism, and a blade fixing mechanism. The linear slide is located in front of the base and abuts against the front surface of the base. The linear slide can slide left and right relative to the base. The interface between the linear slide and the base is provided with a blade groove. The tool locking drive mechanism is used to drive the tool locking bolt to rotate. The tool holder drive mechanism is used to drive the blade to be delivered from the tool holder mechanism. The blade fixing mechanism has a positioning rod that can extend from the front surface of the linear slide and into the blade groove.

[0006] The tool holder mechanism is mounted on the base.

[0007] As an improvement to the above solution, the locking drive mechanism includes a cylinder, a crank swing member, and a ejector pin. The cylinder is horizontally disposed below the machine base. The crank swing member is hinged to the crank seat. One end of the crank swing member is connected to the cylinder, and the other end is connected to the ejector pin. The machine base is also provided with an ejector pin sleeve. The ejector pin passes vertically through the ejector pin sleeve and extends out from the top of the machine base.

[0008] As an improvement to the above solution, the locking knife drive mechanism is a first micro-cylinder mounted on the base, and the piston rod of the first micro-cylinder can extend from the top of the base.

[0009] As an improvement to the above solution, the blade fixing mechanism includes a second micro-motion cylinder, which is connected to the positioning rod and can drive the positioning rod to extend or retract.

[0010] As an improvement to the above solution, the tool magazine mechanism includes a tool magazine body, a pusher plate, a pressure spring, and a guide rod. The tool magazine body has a blade receiving cavity, the pusher plate is located in the blade receiving cavity and connected to the guide rod, the rear of the tool magazine body has a guide sleeve, and the guide rod is located in the guide sleeve; the pressure spring is located between the pusher plate and the rear wall of the tool magazine body; the base has a tool magazine mounting hole, and the lower part of the tool magazine body is located in the tool magazine mounting hole.

[0011] As an improvement to the above solution, the pusher plate is provided with an upper slider and a lower slider, and the inner side of the tool holder body is provided with an upper sliding groove and a lower sliding groove. The upper slider is located in the upper sliding groove, and the lower slider is located in the lower sliding groove.

[0012] As an improvement to the above solution, a reinforcing plate is provided on the base directly below the tool magazine mounting hole, and the reinforcing plate abuts against the bottom surface of the tool magazine body.

[0013] As an improvement to the above solution, one end of the locking bolt is provided with a rotating rod, and the locking drive mechanism can push the rotating rod to rotate clockwise or counterclockwise to lock or unlock the blade in the blade slot.

[0014] As an improvement to the above solution, the machine base is further provided with a linear drive motor, a lead screw, a slide block, and a guide rail. The linear drive motor is used to drive the lead screw to rotate. The slide block is sleeved on the lead screw and can slide along the guide rail driven by the lead screw. The slide block is connected to the linear slide table.

[0015] Implementing the embodiments of the present invention has the following beneficial effects:

[0016] This blade changing system features a blade locking drive mechanism that works in conjunction with the blade locking mechanism to lock or unlock the blade during the changing process. The linear slide can quickly remove the old blade from the blade head and also retrieve the new blade from the blade holder mechanism, delivering it to the loading station for installation. Through the cooperation of the blade changing mechanism and the blade holder mechanism, the automatic replacement of blades in the blade head is achieved without manual intervention. The newly installed blade is reliably fixed to the blade head, ensuring reliable operation of the cutting machine. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the cutter head of a linear tool changing system for a cutting bed according to the present invention;

[0018] Figure 2This is a schematic diagram of the cutter head of a linear tool changing system for a cutting bed according to the present invention from another perspective;

[0019] Figure 3 This is a schematic diagram of the structure of the first embodiment of the tool changing mechanism of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure from another perspective of the first embodiment of the tool changing mechanism of the present invention;

[0021] Figure 5 This is a schematic diagram of the second embodiment of the tool changing mechanism of the present invention;

[0022] Figure 6 This is a schematic diagram of the second embodiment of the tool changing mechanism of the present invention from another perspective;

[0023] Figure 7 This is a cross-sectional structural schematic diagram of the blade holder mechanism of the present invention. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the directional terms such as up, down, left, right, front, back, inside, and outside used in this text are based solely on the accompanying drawings and are not intended to specifically limit the invention.

[0025] like Figures 1-5 As shown in the figure, a specific embodiment of the present invention provides a linear cutting tool changing system for a cutting bed, including a cutting head 1, a tool changing mechanism 2, and a tool holder mechanism 3. The cutting head 1 includes a tool holder 11 and a tool locking mechanism 12. The tool holder 11 is provided with a tool groove 13 for accommodating the blade. The tool locking mechanism 12 includes a tool locking sleeve 14 and a tool locking bolt 15. The tool locking bolt 15 is used to lock the blade 16 in the tool groove 13.

[0026] The tool changing mechanism 2 includes a base 21, a linear slide 22, a tool locking drive mechanism 23, and a blade fixing mechanism 24. The linear slide 22 is located in front of the base 21 and abuts against the front surface of the base 21. The linear slide 22 can slide left and right relative to the base 21. The interface between the linear slide 22 and the base 21 is provided with a blade groove 221. The tool locking drive mechanism 23 is used to drive the tool locking bolt 15 to rotate. The tool magazine mechanism 3 can drive the blade to be sent out from the tool magazine mechanism 3. The blade fixing mechanism 24 has a positioning rod 241, which can extend from the front surface of the linear slide 22 and extend into the blade groove 221.

[0027] The blade holder mechanism 3 is mounted on the base 21.

[0028] This blade changing system includes a blade locking drive mechanism 23, which works in conjunction with the blade locking mechanism 12 to lock or unlock the blade during the blade changing process. The linear slide 22 can quickly remove the old blade from the blade head 1 and also retrieve the new blade from the blade holder mechanism 3, delivering it to the blade loading station for installation. Through the cooperation of the blade changing mechanism 2 and the blade holder mechanism 3, the blade replacement in the blade head 1 can be automated without manual intervention. The newly installed blade is reliably fixed to the blade head 1, ensuring reliable operation of the cutting machine.

[0029] like Figure 3 and Figure 4 As shown, in a first embodiment of the locking drive mechanism 23 described in this example, the locking drive mechanism 23 includes a cylinder 231, a crank swing member 232, and a ejector pin 233. The cylinder 231 is horizontally disposed below the base 21. The crank swing member 232 is hinged to a crank seat 234. One end of the crank swing member 232 is connected to the cylinder 231, and the other end is connected to the ejector pin 233. The base 21 is also provided with an ejector pin sleeve 235, and the ejector pin 233 vertically passes through the ejector pin sleeve 235 and extends out from the top of the base 21. In this embodiment, the up-and-down movement of the ejector pin 233 is driven by the cylinder 231 and the crank swing member 232, resulting in a large stroke and stable and reliable operation of the ejector pin 233.

[0030] like Figure 5 and Figure 6 As shown, in a second embodiment of the locking knife drive mechanism 23 described in this example, the locking knife drive mechanism 23 is a first micro-cylinder 236 mounted on the base 21, and the piston rod 237 of the first micro-cylinder 236 can extend from the top of the base 21. Compared with the first embodiment, this embodiment omits the crank swing member 232 and instead uses a smaller first micro-cylinder 236 directly mounted vertically, using the piston rod 237 of the first micro-cylinder 236 instead of the ejector pin 233 in the first embodiment. This results in a more compact structure, fewer components, and more sensitive operation. The locking knife drive mechanism 23 also includes a third micro-cylinder 238, which is mounted on the linear slide 22 and has a piston rod 239.

[0031] To remove the old blade from the cutting head 1, the blade fixing mechanism 24 includes a second micro-cylinder 242, which is connected to the positioning rod 241 and can drive the positioning rod 241 to extend and retract. During the removal of the blade, the positioning rod 241 extends to press down the old blade, and then the cutting head 1 rises, causing the cutting head 1 to separate from the old blade.

[0032] Combination Figure 7As shown, the tool magazine mechanism 3 includes a tool magazine body 31, a pusher plate 32, a pressure spring 33, and a guide rod 34. The tool magazine body 31 has a blade receiving cavity 311. The pusher plate 32 is located in the blade receiving cavity 311 and connected to the guide rod 34. The rear part of the tool magazine body 31 has a guide sleeve 312, and the guide rod 34 is located in the guide sleeve 312. The pressure spring 33 is located between the pusher plate 32 and the rear wall of the tool magazine body 31. The base 21 has a tool magazine mounting hole 211, and the lower part of the tool magazine body 31 is located in the tool magazine mounting hole 211. The pusher plate 32 applies a forward pushing force to the blade. When the blade groove 13 of the linear slide 22 is aligned with the front end of the blade holder body 31, the linear slide 22 no longer blocks the blade at the front end of the blade holder body 31. The blade in the blade holder body 31 is pushed out from the front end of the blade holder body 31 and enters the blade groove 13 of the linear slide 22, completing the new blade retrieval action.

[0033] It should be noted that the bottom of the tool magazine body 31 is located in the tool magazine mounting hole 211, which reduces the space occupied by the tool magazine body 31, resulting in a smaller overall height of the tool changing system and preventing the upper part of the tool magazine body 31 from obstructing the moving parts such as the tool head 1. In addition, the tool magazine mounting hole 211 can strengthen the tool magazine body 31 and prevent deformation of the tool magazine body 31.

[0034] More preferably, a reinforcing plate 212 is provided on the base directly below the tool magazine mounting hole 211, and the reinforcing plate 212 abuts against the bottom surface of the tool magazine body 31. The reinforcing plate 212 serves as a limiting component for the tool magazine body 31 and can also strengthen the bottom of the tool magazine body 31.

[0035] To drive the blade to move towards the blade outlet within the blade holder body 31, the pusher plate 32 is provided with an upper slider 321 and a lower slider 322. The inner side of the blade holder body 31 is provided with an upper sliding groove 313 and a lower sliding groove 314. The upper slider 321 is located in the upper sliding groove 313, and the lower slider 322 is located in the lower sliding groove 314. By providing the upper sliding groove 313 and the lower sliding groove 314, the pusher plate 32 can be ensured to move horizontally within the guide body, ensuring uniform pressure on the blade and preventing problems such as the blade coming out on its own.

[0036] Preferably, one end of the locking bolt 15 is provided with a rotating rod 17, and the locking drive mechanism 23 can push the rotating rod 17 to rotate clockwise or counterclockwise to lock or unlock the blade in the blade slot 13. Specifically, when the piston rod of the ejector pin 233 or the third micro-motion cylinder 238 extends, depending on the position of the locking bolt 15, it will rotate the rotating rod 17 clockwise or counterclockwise, so that the blade on the cutter head 1 can be quickly unlocked or locked without manual intervention.

[0037] In order to drive the linear slide 22 to move reliably and ensure that its relative distance with the machine base remains unchanged, the machine base 21 is also provided with a linear drive motor 213, a lead screw 214, a slide 215 and a guide rail 216. The linear drive motor 213 is used to drive the lead screw 214 to rotate. The slide 215 is sleeved on the lead screw 214 and can slide along the guide rail 216 driven by the lead screw 214. The slide 215 is connected to the linear slide 22.

[0038] The working principle of this linear tool changer system is as follows:

[0039] The cutting head 1 is connected to the cutting bed and, driven by the cutting bed, can move along the cutting trajectory while rapidly vibrating up and down to achieve the cutting function. When the blade needs to be replaced, the cutting bed moves the cutting head 1 to the unloading position above the blade changing mechanism 2, so that the blade locking drive mechanism 23 is aligned with the blade locking mechanism 12. The blade extends into the blade groove 221, and the positioning rod 241, connected to the second micro-motion cylinder 242, extends out to press and fix the blade in the blade groove 221. Taking the second embodiment of the blade locking drive mechanism 23 as an example, the piston rod of the first micro-motion cylinder 236 rises, pushing one end of the rotating rod 17 upward, causing the rotating rod 17 to rotate counterclockwise, releasing the blade from the cutting head 1. The cutting head 1 rises, separating the blade from the cutting head 1, and the removal of the old blade is completed.

[0040] The linear slide 22 moves forward, causing the blade groove 221 to coincide with the unloading groove 217 on the machine base 21, and the blade falls into the waste tool box 218 below the unloading groove 217.

[0041] The linear slide 22 moves back, positioning the blade groove 13 at the front end of the blade holder body 31. The pressure spring 33 pushes one blade from the front end of the blade holder body 31 into the blade groove 221 of the linear slide 22. The blade head 1 moves to the loading position, and the linear slide 22 moves to realign the blade groove 221 with the blade head 1. The piston rod 239 of the third micro-actuator 238 extends upward and contacts the other end of the rotating rod 17, causing the rotating rod 17 to rotate clockwise, fixing the blade to the blade head 1. The blade head 1 then rises, separating the blade from the blade groove 221, and the cutting bed continues to operate normally.

[0042] The aforementioned blade changing method enables convenient blade replacement, provides a large blade reserve, extends maintenance cycles, and reduces maintenance costs. It shortens blade changing time on the cutting table, increases its efficiency, and eliminates the need for manual intervention, saving manpower. Furthermore, workers do not need to be positioned around the cutting table during operation, preventing potential health risks from broken blades flying out.

[0043] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A linear tool changing system for a cutting bed, characterized in that, It includes a cutting head, a tool changing mechanism, and a tool holder mechanism. The cutting head includes a tool holder and a tool locking mechanism. The tool holder has a tool groove for accommodating the blade. The tool locking mechanism includes a tool locking sleeving and a tool locking bolt. The tool locking bolt is used to lock the blade in the tool groove. The tool changing mechanism includes a base, a linear slide, a tool locking drive mechanism, and a blade fixing mechanism. The linear slide is located in front of the base and abuts against the front surface of the base. The linear slide can slide left and right relative to the base. The interface between the linear slide and the base is provided with a blade groove. The tool locking drive mechanism is used to drive the tool locking bolt to rotate. The tool magazine mechanism can drive the blade to be fed out from the tool magazine mechanism. The blade fixing mechanism has a positioning rod that can extend from the front surface of the linear slide and into the blade groove. The tool holder mechanism is mounted on the base.

2. The linear tool changing system for a cutting bed as described in claim 1, characterized in that, The locking drive mechanism includes a cylinder, a crank swing member, and a ejector pin. The cylinder is horizontally located below the machine base. The crank swing member is hinged to a crank seat. One end of the crank swing member is connected to the cylinder, and the other end is connected to the ejector pin. The machine base is also provided with an ejector pin sleeve. The ejector pin passes vertically through the ejector pin sleeve and extends out from the top of the machine base.

3. The linear tool changing system for a cutting bed as described in claim 1, characterized in that, The locking knife drive mechanism is a first micro-cylinder mounted on the base, and the piston rod of the first micro-cylinder can extend from the top of the base.

4. The linear tool changing system for a cutting bed as described in claim 1, characterized in that, The blade fixing mechanism includes a second micro-motion cylinder, which is connected to the positioning rod and can drive the positioning rod to extend or retract.

5. The linear tool changing system for a cutting bed as described in claim 1, characterized in that, The tool magazine mechanism includes a tool magazine body, a pusher plate, a pressure spring, and a guide rod. The tool magazine body has a blade receiving cavity, the pusher plate is located in the blade receiving cavity and connected to the guide rod, the rear of the tool magazine body has a guide sleeve, and the guide rod is located in the guide sleeve; the pressure spring is located between the pusher plate and the rear wall of the tool magazine body; the base has a tool magazine mounting hole, and the lower part of the tool magazine body is located in the tool magazine mounting hole.

6. The linear tool changing system for a cutting bed as described in claim 5, characterized in that, The pusher plate is provided with an upper slider and a lower slider, and the inner side of the tool holder body is provided with an upper sliding groove and a lower sliding groove. The upper slider is located in the upper sliding groove, and the lower slider is located in the lower sliding groove.

7. The linear tool changing system for a cutting bed as described in claim 5, characterized in that, A reinforcing plate is provided on the base directly below the tool magazine mounting hole, and the reinforcing plate abuts against the bottom surface of the tool magazine body.

8. The linear tool changing system for a cutting bed as described in claim 1, characterized in that, One end of the locking bolt is provided with a rotating rod, and the locking drive mechanism can push the rotating rod to rotate clockwise or counterclockwise to lock or unlock the blade in the blade slot.

9. The linear tool changing system for a cutting bed as described in claim 1, characterized in that, The base is also provided with a linear drive motor, a lead screw, a slide block, and a guide rail. The linear drive motor is used to drive the lead screw to rotate. The slide block is sleeved on the lead screw and can slide along the guide rail driven by the lead screw. The slide block is connected to the linear slide table.

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