Tool changing device of numerical control machining center

Abstract

The utility model discloses a numerical control machining center tool changing device, which belongs to the technical field of tool changing devices and comprises a rack, a connecting frame is fixedly connected to the rear end of the rack, a first sliding rod cylinder is mounted in the connecting frame, and a connecting plate is mounted at the front end of the first sliding rod cylinder. A connecting plate is arranged on the upper portion of the milling cutter body, a driving device is installed on the connecting plate in an embedded mode, the output end of the driving device is fixedly connected with a mounting frame, and a milling cutter fixing mechanism is installed on the mounting frame. In the cutter changing process, residual scraps on the surface of the milling cutter body can be sucked and collected through the scrap sucking mechanism before the milling cutter body on the mounting frame is disassembled; and after the milling cutter body is detached, chippings deeply hidden in the mounting frame are sucked and collected, so that the chippings are prevented from interfering with the milling cutter body in the subsequent cutter changing process, the cutter changing time consumption is reduced, the cutter changing efficiency is improved, and meanwhile, abrasion caused by contact friction between the chippings and the surface of the milling cutter body is also avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tool changing devices, and more specifically to a tool changing device for a numerical control machining center. Background Art

[0002] The CNC machining center has the ability to automatically exchange machining tools. By installing tool heads for different purposes on the tool magazine, the machining tools on the spindle can be changed through the automatic tool changing device in one clamping to achieve multiple machining functions.

[0003] For example, a tool changing device for a CNC machining center proposed in the announcement number CN218696394U includes a frame, an electric push rod is fixedly installed on the inner wall of the frame, a tool holder is fixedly installed on the telescopic end of the electric push rod, a mounting frame is fixedly installed on the back of the frame, a threaded rod is connected to the inner rotation of the mounting frame, a rotating motor is arranged above the mounting frame, a moving frame is threadedly connected to the outer surface of the threaded rod, a hydraulic rod is fixedly installed on the inner wall of the moving frame, a moving block is fixedly installed on the telescopic end of the hydraulic rod, a bidirectional ball screw is connected to the inner rotation of the moving block, a stepper motor is fixedly installed on the right side of the moving block, and two clamps are threadedly connected to the outer surface of the bidirectional ball screw. The tool changing device for the CNC machining center achieves the purpose of not requiring workers to manually replace the milling cutter body by arranging an electric push rod, a tool holder rotating motor, a threaded rod, a moving frame, a hydraulic rod, a moving block, a stepper motor, a bidirectional ball screw and a clamp.

[0004] The above patent has the following defects during use:

[0005] When the milling cutter is processing the workpiece, debris will splash onto the milling cutter and nearby parts. In order to avoid injury, some workers often simply clean this area during cleaning, which makes the debris cleaning not thorough enough. The debris attached to the milling cutter and mounting parts during the tool changing process can easily interfere with the installation of the milling cutter, which is not only time-consuming, but also easy to wear the milling cutter surface due to friction between the debris and the milling cutter surface, resulting in poor use effect. Therefore, there is an urgent need to improve the technology of the tool changing device to improve this equipment.

[0006] Therefore, the utility model provides a tool changing device for a numerical control machining center. Utility Model Content

[0007] 1. Technical problems to be solved

[0008] In view of the problems existing in the prior art, the purpose of the utility model is to provide a tool changing device for a CNC machining center, which can achieve that during the tool changing process, the debris remaining on the surface of the milling cutter body on the mounting frame can be sucked and collected through the chip suction mechanism before the milling cutter body is removed, and after the milling cutter body is removed, the debris hidden deep inside the mounting frame can be sucked and collected, so as to avoid the debris from interfering with the milling cutter body during the subsequent tool changing process, reduce the time consumed for tool changing, improve the tool changing efficiency, and also avoid wear caused by contact friction between the debris and the surface of the milling cutter body.

[0009] 2. Technical solution

[0010] To solve the above problems, the utility model adopts the following technical solutions.

[0011] A tool changing device for a CNC machining center comprises a frame, a connecting frame is fixedly connected to the rear end of the frame, and a first slide cylinder is installed inside the connecting frame, a connecting plate is installed at the front end of the first slide cylinder, and a driving device is embedded and installed on the connecting plate, the output end of the driving device is fixedly connected to a mounting frame, and a milling cutter fixing mechanism is installed on the mounting frame, a second slide cylinder is installed at the outer end of the frame, and the upper end of the second slide cylinder is fixedly connected to the mounting plate, a chip suction mechanism is installed on the upper end of the mounting plate, and the upper end of the mounting plate is fixedly connected to a tool holder, and a plurality of milling cutter bodies are placed on the tool holder.

[0012] Furthermore, the milling cutter fixing mechanism includes a pair of electric telescopic rods embedded in the mounting frame, the adjacent ends of the pair of electric telescopic rods are fixedly connected with extrusion plates, and the adjacent ends of the pair of extrusion plates are fixedly connected with a pair of plug blocks, and a pair of slots are opened at the left and right ends of the milling cutter body, and the plug blocks match the slots.

[0013] Furthermore, the chip suction mechanism includes a collection box fixedly connected to the upper end of the mounting plate, a chip guide tube is embedded in the upper end of the collection box, a sticky pad is placed on the inner bottom end of the collection box, a dust suction pump is installed on the upper end of the collection box, and the lower end of the dust suction pump is fixedly connected to the upper end of the chip guide tube, and the upper end of the dust suction pump is fixedly connected to a chip suction hopper.

[0014] Furthermore, the front end of the collecting box is rotatably connected with a movable sealing plate.

[0015] Furthermore, a straight plate is fixedly connected to the upper end of the mounting plate, and a monitoring camera is installed at the right end of the straight plate.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] (1) The utility model, through the mutual cooperation of the first slide rod cylinder and the second slide rod cylinder, can drive the milling cutter body on the tool holder to correspond to the mounting frame, and drive the milling cutter body on the mounting frame to be quickly disassembled through the milling cutter fixing mechanism, so that it can be placed on the tool holder, and then replaced with a new milling cutter body for fixed installation, thereby realizing the corresponding tool changing work according to the use requirements, so as to facilitate subsequent work.

[0019] (2) During the tool changing process, the utility model can absorb and collect the debris remaining on the surface of the milling cutter body on the mounting frame through the chip suction mechanism before the milling cutter body is removed. After the milling cutter body is removed, the debris hidden deep inside the mounting frame can be sucked and collected, thereby avoiding interference of the debris on the milling cutter body during the subsequent tool changing process, reducing the time consumed for tool changing, improving the tool changing efficiency, and also avoiding wear caused by contact and friction between the debris and the surface of the milling cutter body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a bottom view structural diagram of the milling cutter fixing mechanism and the milling cutter body in the utility model;

[0022] Figure 3 It is a partial cross-sectional structural schematic diagram of the chip suction mechanism in the utility model.

[0023] Description of the numbers in the figure:

[0024] 1. Frame; 2. Connecting frame; 3. First slide cylinder; 4. Connecting plate; 5. Driving device; 6. Mounting frame; 7. Milling cutter fixing mechanism; 701. Electric telescopic rod; 702. Extrusion plate; 703. Insert block; 704. Slot; 8. Second slide cylinder; 9. Mounting plate; 10. Tool holder; 11. Chip suction mechanism; 1101. Collection box; 1102. Movable sealing plate; 1103. Chip guide tube; 1104. Dust pump; 1105. Chip suction bucket; 1106. Sticky pad; 12. Straight plate; 13. Monitoring camera; 14. Milling cutter body. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0026] Example:

[0027] See also Figure 1-3 A tool changing device for a CNC machining center includes a frame 1, a connecting frame 2 is fixedly connected to the rear end of the frame 1, and a first slide cylinder 3 is installed inside the connecting frame 2, a connecting plate 4 is installed at the front end of the first slide cylinder 3, and a driving device 5 is embedded and installed on the connecting plate 4, an output end of the driving device 5 is fixedly connected to a mounting frame 6, and a milling cutter fixing mechanism 7 is installed on the mounting frame 6, a second slide cylinder 8 is installed at the outer end of the frame 1, and a mounting plate 9 is fixedly connected to the upper end of the second slide cylinder 8, a chip suction mechanism 11 is installed on the upper end of the mounting plate 9, a tool holder 10 is fixedly connected to the upper end of the mounting plate 9, and a plurality of milling cutter bodies 14 are placed on the tool holder 10.

[0028] During use of the present solution, the driving device 5 can drive the mounting frame 6 and the milling cutter body 14 installed therein to process the workpiece. When the tool needs to be changed according to the use requirements, the second slide rod cylinder 8 first drives the mounting plate 9 to move to the right, so that under the monitoring of the monitoring camera 13, the chip suction mechanism 11 moves to the bottom of the mounting frame 6. At this time, the first slide rod cylinder 3 drives the connecting plate 4 to move downward, so that the mounting frame 6 and the milling cutter body 14 installed therein move downward, close to the chip suction bucket 1105 in the chip suction mechanism 11. At the same time, the dust suction pump 1104 is started to drive the chip suction bucket 1105 to move downward. The bucket 1105 absorbs the debris on the surface of the mounting frame 6 and the milling cutter body 14 installed therein, and enters the collection box 1101 through the chip guide tube 1103, and is fixed by the sticky pad 1106 to achieve the absorption and collection of the debris. After the absorption is completed, the second slide rod cylinder 8 drives the mounting plate 9 to continue to move to the right, so that the vacant placement area on the tool holder 10 corresponds to the milling cutter body 14 on the mounting frame 6. Then the first slide rod cylinder 3 drives the milling cutter body 14 to move downward and extend to the vacant placement area on the tool holder 10. At the same time, a pair of electric telescopic rods 701 in the milling cutter fixing mechanism 7 drives a The extrusion plate 702 moves away from each other, so that the insert block 703 is separated from the slot 704, driving the milling cutter body 14 on the mounting frame 6 to be disassembled and separated, and placed in the vacant placement area on the tool holder 10. After the disassembly is completed, the first slide rod cylinder 3 drives the mounting frame 6 to rise a certain distance, and then the second slide rod cylinder 8 drives the mounting plate 9 to move to the left, so that the chip suction bucket 1105 corresponds to the mounting frame 6 again, and the dust suction pump 1104 drives the chip suction bucket 1105 to absorb and collect the debris hidden deep inside the mounting frame 6 after disassembly, so as to avoid the debris from causing damage to the milling cutter body 14 during the subsequent tool change process. Interference, reducing the consumption of tool changing time, improving tool changing efficiency, and also avoiding wear caused by contact friction between debris and the surface of the milling cutter body 14. After the waste chips are cleaned, the second slide cylinder 8 drives the milling cutter body 14 required to be used on the tool holder 10 to correspond to the mounting frame 6. At the same time, the first slide cylinder 3 drives the mounting frame 6 to move downward again, so that the plug block 703 corresponds to the slot 704, and then a pair of electric telescopic rods 701 drive a pair of extrusion plates 702 to move toward each other, so that the plug block 703 is engaged with the slot 704, so as to realize the tool changing work adapted to the use requirements, so as to facilitate the subsequent work.

[0029] See also Figure 1-2 The milling cutter fixing mechanism 7 includes a pair of electric telescopic rods 701 embedded in the mounting frame 6, the adjacent ends of the pair of electric telescopic rods 701 are fixedly connected with an extrusion plate 702, and the adjacent ends of the pair of extrusion plates 702 are fixedly connected with a pair of plug blocks 703, and the left and right ends of the milling cutter body 14 are each provided with a pair of slots 704, and the plug blocks 703 match the slots 704.

[0030] During use of the present scheme, the lifting displacement of the first slide cylinder 3 and the horizontal displacement of the second slide cylinder 8 can drive the milling cutter body 14 on the tool holder 10 to correspond to the mounting frame 6, and the plug block 703 can be driven to separate from the slot 704 through the separation and contraction of a pair of electric telescopic rods 701, thereby driving the milling cutter body 14 on the mounting frame 6 to be quickly disassembled and placed on the tool holder 10, and then the plug block 703 is engaged with the slot 704 through the pair of electric telescopic rods 701 extending towards each other, and the new milling cutter body 14 is replaced for fixed installation, so as to realize the corresponding tool changing work according to the use requirements, so as to facilitate the subsequent work.

[0031] See also Figure 1 and Figure 3 The chip suction mechanism 11 includes a collecting box 1101 fixedly connected to the upper end of the mounting plate 9, a chip guide tube 1103 is embedded in the upper end of the collecting box 1101, and a sticky pad 1106 is placed on the inner bottom end of the collecting box 1101, a dust suction pump 1104 is installed on the upper end of the collecting box 1101, and the lower end of the dust suction pump 1104 is fixedly connected to the upper end of the chip guide tube 1103, and the upper end of the dust suction pump 1104 is fixedly connected to a chip suction bucket 1105.

[0032] During use of the present solution, before the milling cutter body 14 on the mounting frame 6 is disassembled, the dust suction pump 1104 drives the chip suction bucket 1105 to absorb the debris on the surface of the mounting frame 6 and the milling cutter body 14 installed therein, and the debris enters the collection box 1101 through the chip guide tube 1103, and is adhered and fixed by the sticky pad 1106 to achieve the absorption and collection of the debris. After the milling cutter body 14 is disassembled, the dust suction pump 1104 drives the chip suction bucket 1105 to absorb and collect the debris hidden deep inside the disassembled mounting frame 6, thereby avoiding interference of the debris on the milling cutter body 14 during the subsequent tool changing process, reducing the consumption of tool changing time, improving the tool changing efficiency, and also avoiding wear caused by contact and friction between the debris and the surface of the milling cutter body 14.

[0033] See also Figure 1 The front end of the collecting box 1101 is rotatably connected with a movable sealing plate 1102.

[0034] During use of this solution, after the waste is cleaned, the movable cover plate 1102 is pulled outward to cause the sticky pad 1106 and the adhered waste to be discarded, and then a new sticky pad 1106 is replaced and placed in the collection box 1101.

[0035] See also Figure 1 The upper end of the mounting plate 9 is fixedly connected with a straight plate 12 , and the right end of the straight plate 12 is installed with a monitoring camera 13 .

[0036] During use, the present solution can monitor the tool changing process in real time by setting the monitoring camera 13, thereby avoiding deviations and errors in the operation during the tool changing process and ensuring accurate tool changing.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tool changing device for a CNC machining center, comprising a frame (1), characterized in that: The rear end of the frame (1) is fixedly connected to a connection frame (2), and a first slide rod cylinder (3) is installed inside the connection frame (2); the front end of the first slide rod cylinder (3) is installed with a connection plate (4), and a driving device (5) is embedded and installed on the connection plate (4); the output end of the driving device (5) is fixedly connected to a mounting frame (6), and a milling cutter fixing mechanism (7) is installed on the mounting frame (6); the outer end of the frame (1) is installed with a second slide rod cylinder (8), and the upper end of the second slide rod cylinder (8) is fixedly connected to a mounting plate (9), and a chip suction mechanism (11) is installed on the upper end of the mounting plate (9); the upper end of the mounting plate (9) is fixedly connected to a tool holder (10), and a plurality of milling cutter bodies (14) are placed on the tool holder (10).

2. A tool changing device for a CNC machining center according to claim 1, characterized in that: The milling cutter fixing mechanism (7) comprises a pair of electric telescopic rods (701) embedded in the mounting frame (6); the adjacent ends of the pair of electric telescopic rods (701) are fixedly connected to an extrusion plate (702); and the adjacent ends of the pair of extrusion plates (702) are fixedly connected to a pair of plug blocks (703); and the left and right ends of the milling cutter body (14) are each provided with a pair of slots (704), and the plug blocks (703) match the slots (704).

3. The tool changing device for a CNC machining center according to claim 1, characterized in that: The chip suction mechanism (11) comprises a collection box (1101) fixedly connected to the upper end of the mounting plate (9); a chip guide tube (1103) is embedded and installed at the upper end of the collection box (1101); a sticky pad (1106) is placed at the inner bottom end of the collection box (1101); a dust suction pump (1104) is installed at the upper end of the collection box (1101); the lower end of the dust suction pump (1104) is fixedly connected to the upper end of the chip guide tube (1103); and the upper end of the dust suction pump (1104) is fixedly connected to a chip suction hopper (1105).

4. A tool changing device for a CNC machining center according to claim 3, characterized in that: The front end of the collection box (1101) is rotatably connected to a movable sealing plate (1102).

5. The tool changing device for a CNC machining center according to claim 1, characterized in that: The upper end of the mounting plate (9) is fixedly connected to a straight plate (12), and a monitoring camera (13) is installed at the right end of the straight plate (12).

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