High-reliability three-head engraving machine three-tool magazine tool magazine

Abstract

The utility model discloses a high reliability three -head engraving and milling machine three knife storehouse knife storehouse belongs to processing machine tool technical field, including setting on the knife storehouse main part of machine tool main part still includes the knife storehouse lift door, the back of machine tool main part is opposite the knife storehouse lift door and is provided with the lift guide mechanism, one side of lift guide mechanism is provided with first drive end, the bottom of knife storehouse main part is provided with the knife storehouse base, be provided with the sliding guide seat on machine tool main part, the second drive end be provided with in the knife storehouse base, be provided with transmission mechanism in the sliding guide seat, transmission mechanism with second drive end meets. The knife storehouse lift door effectively isolates the dust and the chippings generated in processing, avoids the pollution to enter the inside of the knife storehouse, significantly reduces the wear and tear risk of the key components (such as the indexing mechanism, the handle cone surface), thereby prolongs the service life of equipment and keeps long -term operation stability.

Description

Technical Field

[0001] This utility model relates to a tool magazine, specifically a high-reliability three-tool magazine for a three-head engraving and milling machine, belonging to the field of machine tool technology. Background Technology

[0002] Three-head CNC engraving and milling machines and their matching tool magazine technology, as the core carrier for the upgrading of the manufacturing industry towards high precision, high efficiency, and intelligence, are driving a revolution in the mass production of complex components such as 5G communication base stations and aero-engine blades. Traditional single-axis equipment, due to bottlenecks such as dispersed processes (requiring multiple tool changes) and low efficiency (processing cycle extended by 40%-60%), is struggling to meet the surging micron-level machining demands in fields such as precision molds and aerospace. Three-head CNC engraving and milling machines, through the deep integration of multi-spindle collaborative machining (three-station parallel cutting) and an intelligent tool magazine system (supporting automatic tool scheduling), have achieved a technological breakthrough of "one-time clamping and full-process completion" for complex workpieces. However, metal chips generated during high-speed machining (8-12 kg / h) easily intrude into the open tool magazine, leading to potential problems such as contamination of the tool holder tapered surface (positioning error > 0.005 mm) and accelerated wear of the indexing mechanism (maintenance cycle shortened to 250 hours), becoming a key pain point restricting the continuous improvement of equipment efficiency.

[0003] Chinese patent document CN213105746U discloses a triple tool magazine system for a three-head engraving and milling machine. This patent, applied for by our company, effectively prevents chip interference during machining by setting a tool magazine door. However, the tool magazine door in this application opens and closes by horizontal lateral movement and has three windows. The drawback of this method is that if the translational stroke of the tool magazine door is too large or too small, the windows cannot be aligned with the tool changing window on the tool magazine, which will affect the entry and exit of the tools; at the same time, the horizontally placed cylinder will also occupy additional space. Therefore, further improvement is needed. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a highly reliable three-head engraving and milling machine with a three-tool magazine, which improves equipment stability, prevents contaminants from entering the tool magazine, reduces wear on key components, and effectively ensures machining accuracy.

[0005] The technical solution adopted in this utility model is as follows: a high-reliability three-head engraving and milling machine with a three-tool magazine, including a tool magazine body mounted on the machine tool body, and a tool magazine lifting door; a lifting guide mechanism is provided on the back side of the machine tool body opposite to the tool magazine lifting door; a first drive end is provided on one side of the lifting guide mechanism; a tool magazine base is provided at the bottom of the tool magazine body; a sliding guide seat is provided on the machine tool body; a second drive end is provided inside the tool magazine base; a transmission mechanism is provided inside the sliding guide seat; and the transmission mechanism is connected to the second drive end.

[0006] Furthermore, the tool magazine lifting door has a tool changing window inside; the lifting guide mechanism includes two parts, which are symmetrically arranged on both sides of the back of the machine tool body; the tool magazine lifting door has a first slide groove on both sides; the lifting guide mechanism includes a first guide rail and a first slider.

[0007] Furthermore, the first slider is slidably disposed on the first guide rail; the first slider is fixedly connected to the first slide groove; a connector is provided on the outer side of the first slide groove; the first driving end is a cylinder; a cylinder bracket is provided on the outer side of the first guide rail; and the piston end of the cylinder is connected to the connector.

[0008] Furthermore, the bottom of the tool magazine base is provided with a second sliding groove; the surface of the sliding guide seat is provided with two second guide rails; the second guide rails are located inside the second sliding groove; a second slider is provided on the second guide rails; the second slider is fixedly connected to the second sliding groove.

[0009] Furthermore, the second drive end is a geared motor installed inside the tool magazine base; the transmission mechanism includes a rack; the rack is located on the outside of the second guide rail.

[0010] Furthermore, the transmission mechanism also includes a drive gear sleeved on the output shaft of the geared motor; the drive gear meshes with a rack.

[0011] This utility model has the following beneficial effects: The tool magazine lifting door, in cooperation with the lifting guide mechanism and the first drive end, realizes the lifting and opening / closing mode; the first drive end adopts a longitudinal arrangement, which maximizes space utilization, and the tool magazine lifting door does not need to correspond one-to-one with each tool, thus avoiding the problem of tool entry / exit failure due to misalignment. The tool magazine lifting door effectively isolates dust and debris generated during processing, preventing contaminants from entering the tool magazine, significantly reducing the wear risk of key components (such as the indexing mechanism and tool holder tapered surface), thereby extending the service life of the equipment and maintaining long-term operational stability. It prevents debris from contaminating the tool positioning surface (such as the tool holder tapered surface), reducing positioning errors caused by foreign object interference (error can be controlled within ±0.005mm), and ensuring the consistency of complex workpiece processing.

[0012] Meanwhile, the tool magazine base and the sliding guide seat adopt a gear and rack transmission method, which has higher displacement accuracy and smoother operation compared with the traditional cylinder propulsion method. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is an exploded structural diagram of the tool magazine lifting door and the lifting guide mechanism.

[0015] Figure 3 This is a schematic diagram of the internal structure of the tool magazine base.

[0016] Figure 4 This is a schematic diagram of the internal structure of the sliding guide seat.

[0017] Figure 5 This is a schematic diagram of the side structure of the tool magazine base.

[0018] Wherein: 1 is the machine tool body, 2 is the tool magazine body, 3 is the tool magazine lifting door, 3-1 is the first slide rail, 3-2 is the tool changing window, 4 is the tool magazine base, 4-1 is the second slide rail, 5 is the sliding guide seat, 6 is the first guide rail, 7 is the first slider, 8 is the connector, 9 is the cylinder, 10 is the cylinder bracket, 11 is the second guide rail, 12 is the second slider, 13 is the rack, 14 is the drive gear, and 15 is the geared motor. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] See Figures 1-5 This application discloses a high-reliability three-head engraving and milling machine with a three-tool magazine, including a tool magazine body 2 mounted on a machine tool body 1, and a tool magazine lifting door 3; a lifting guide mechanism is provided on the back side of the machine tool body 1 opposite to the tool magazine lifting door 3; a first drive end is provided on one side of the lifting guide mechanism; a tool magazine base 4 is provided at the bottom of the tool magazine body 2; a sliding guide seat 5 is provided on the machine tool body 1; a second drive end is provided inside the tool magazine base 4; a transmission mechanism is provided inside the sliding guide seat 5; and the transmission mechanism is connected to the second drive end.

[0021] Furthermore, the tool magazine lifting door 3 has a tool changing window 3-2 inside; the lifting guide mechanism includes two parts, which are symmetrically arranged on both sides of the back of the machine tool body 1; the tool magazine lifting door 3 has a first slide groove 3-1 on both sides; the lifting guide mechanism includes a first guide rail 6 and a first slider 7.

[0022] Furthermore, the first slider 7 is slidably disposed on the first guide rail 6; the first slider 7 is fixedly connected to the first slide groove 3-1; a connector 8 is provided on the outer side of the first slide groove 3-1; the first driving end is a cylinder 9; a cylinder bracket 10 is provided on the outer side of the first guide rail 6; and the piston end of the cylinder 9 is connected to the connector 8.

[0023] Specifically, in this embodiment, the piston of cylinder 9 is directly connected to the connector 8 on the outside of the first slide groove 3-1; the door body moves along the first guide rail 6 at a lifting speed of 0.5-1m / s by air pressure drive, which can ensure the lifting trajectory accuracy of the knife magazine lifting door 3 (±0.1mm) and avoid jamming.

[0024] Meanwhile, the tool magazine lifting door 3 has a tool changing window 3-2. The tool changing window 3-2 does not correspond one-to-one with each tool magazine window. As long as the lifting stroke of the tool magazine lifting door 3 is large enough, the tool magazine window will not be able to enter or exit normally.

[0025] Furthermore, the bottom of the tool magazine base 4 is provided with a second slide groove 4-1; the surface of the sliding guide seat 5 is provided with two second guide rails 11; the second guide rails 11 are located inside the second slide groove 4-1; a second slider 12 is provided on the second guide rails 11; the second slider 12 is fixedly connected to the second slide groove 4-1.

[0026] Furthermore, the second drive end is a geared motor 15 installed in the tool magazine base 4; the transmission mechanism includes a rack 13; the rack 13 is located on the outside of the second guide rail 11.

[0027] Furthermore, the transmission mechanism also includes a drive gear 14 mounted on the output shaft of the geared motor 15; the drive gear 14 meshes with the rack 13.

[0028] Specifically, in this embodiment, the reduction motor 15 drives the rotation of the drive gear 14, which in turn drives the tool magazine base 4 to move along the rack 13. Furthermore, the second slider 12 and the second guide rail 11 limit the translational direction of the tool magazine base 4, ensuring its movement trajectory.

[0029] The gear and rack transmission accuracy reaches ±0.05mm, ensuring precise alignment between the tool magazine body 1 and the spindle.

[0030] The specific workflow is as follows:

[0031] Tool change start: Cylinder 9 starts, and tool magazine lifting door 3 rises vertically (forming a tool change channel).

[0032] Tool magazine push: The geared motor 15 drives the drive gear 14 to rotate, pushing the tool magazine body 2 forward to the tool changing position.

[0033] Tool changing: The spindle and tool magazine body 2 perform old tool recycling and new tool loading (the system is compatible with pneumatic / hydraulic clamping).

[0034] Reset and close: Tool magazine body 2 returns to the initial position → Tool magazine lifting door 3 descends to fully close → Debris protection barrier is rebuilt.

[0035] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A high-reliability three-head engraving and milling machine with a three-tool magazine, comprising a tool magazine body (2) mounted on the machine tool body (1), characterized in that: It also includes a tool magazine lifting door (3); a lifting guide mechanism is provided on the back side of the machine tool body (1) opposite to the tool magazine lifting door (3); a first drive end is provided on one side of the lifting guide mechanism; a tool magazine base (4) is provided at the bottom of the tool magazine body (2); a sliding guide seat (5) is provided on the machine tool body (1); a second drive end is provided inside the tool magazine base (4); a transmission mechanism is provided inside the sliding guide seat (5); the transmission mechanism is connected to the second drive end.

2. The high-reliability three-head engraving and milling machine three-tool magazine according to claim 1, characterized in that: The tool magazine lifting door (3) has a tool changing window (3-2) inside; the lifting guide mechanism includes two parts, which are symmetrically arranged on both sides of the back of the machine tool body (1); the tool magazine lifting door (3) has a first slide groove (3-1) on both sides; the lifting guide mechanism includes a first guide rail (6) and a first slider (7).

3. The high-reliability three-head engraving and milling machine three-tool magazine according to claim 2, characterized in that: The first slider (7) is slidably disposed on the first guide rail (6); the first slider (7) is fixedly connected to the first slide groove (3-1); a connector (8) is provided on the outside of the first slide groove (3-1); the first driving end is a cylinder (9); a cylinder bracket (10) is provided on the outside of the first guide rail (6); the piston end of the cylinder (9) is connected to the connector (8).

4. The high-reliability three-head engraving and milling machine three-tool magazine according to claim 1, characterized in that: The bottom of the tool magazine base (4) is provided with a second slide groove (4-1); the surface of the sliding guide seat (5) is provided with two second guide rails (11); the second guide rails (11) are located inside the second slide groove (4-1); a second slider (12) is provided on the second guide rail (11); the second slider (12) is fixedly connected to the second slide groove (4-1).

5. The high-reliability three-head engraving and milling machine three-tool magazine according to claim 4, characterized in that: The second drive end is a geared motor (15) installed in the tool magazine base (4); the transmission mechanism includes a rack (13); the rack (13) is located on the outside of the second guide rail (11).

6. The high-reliability three-head engraving and milling machine three-tool magazine according to claim 5, characterized in that: The transmission mechanism further includes a drive gear (14) sleeved on the output shaft of the geared motor (15); the drive gear (14) meshes with the rack (13).

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