Numerical control machine tool with automatic pressing mechanism

Abstract

The utility model discloses a numerical control machine tool with an automatic material pressing mechanism, which comprises a machine tool body, a tool magazine capable of freely moving is arranged on the machine tool body, and a cutting tool bit and a drilling tool bit are respectively arranged in the tool magazine. A first air cylinder capable of moving front and back along with the tool magazine is arranged on the machine tool body, and two sets of pressing rollers are arranged at the top of the first air cylinder. The utility model relates to the technical field of numerical control machine tools, which is characterized in that the material pressing mechanism capable of following the cutting tool bit is arranged, and the material pressing mechanism is driven by the air cylinder to descend and abut against a cut sheet at the cutting tail end, so that the sheet is pressed, the problem that the sheet falls off before being completely cut is solved, and the cutting efficiency is improved. Therefore, the cutting tool bit can smoothly walk by a whole stroke and completely cut off the sheet, and the problem of barb residue caused by the fact that the sheet falls off in advance is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tools, in particular to a numerical control machine tool with an automatic material pressing mechanism. Background Art

[0002] During the cutting process of CNC machine tools, it is often necessary to cut sheets of various sizes from the plate. The problem with the current cutting head during the processing is that at the end of the cutting, when the cutting head is about to complete the cutting, the cut part will fall off from the incision position in advance due to the vibration of the cutting head and the influence of its own gravity. At this time, the cutting head has not completed the cutting stroke, and barbs will be left on the cut sheet. (For details, please refer to the attached Figure 6 It is known that A is the starting point of the cutter head, that is, when the cutter head runs to point B, the sheet C has already fallen off the plate, and the cutter head's running trajectory at this time has not been completely completed. In fact, the cutter head should return to point A to be considered a complete cutting trajectory. Precisely because the cutter head has not completed the entire stroke, the sheet C falls off from point D, the contact point between points AB, and the barb is generated between AB). The barb needs to be processed with the help of a grinder later, especially when the cutter head diameter is large and the plate is thicker, the barb left behind will be more obvious.

[0003] After many technical breakthroughs, our company has developed this machine tool, which can solve the problem of barbs remaining in the sheet during the cutting process. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the deficiencies of the prior art, the utility model provides a CNC machine tool with an automatic material pressing mechanism, which solves the problem of residual barbs when the existing CNC machine tools cut sheets.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a CNC machine tool with an automatic material pressing mechanism, comprising a machine tool body, a freely movable tool magazine being provided on the machine tool body, and a cutting tool head and a drilling tool head being provided in the tool magazine.

[0008] The machine tool body is provided with a first cylinder which can move forward and backward following the tool magazine. Two sets of pressing rollers are provided on the top of the first cylinder. A gap is reserved between the two sets of pressing rollers, and the tool magazine is located in the gap.

[0009] A limit caliper is provided on one side of the machine tool body.

[0010] A second cylinder that can be raised and lowered is provided on one side of the cutting head, and a deflectable pressing mechanism is installed on the free end of the second cylinder.

[0011] As a further preferred embodiment, the pressing mechanism includes a first rotating arm, both ends of the first rotating arm are provided with a groove body, the upper and lower ends of the groove body are provided with bearings, a rotatable rotating shaft is provided between the upper and lower bearings, one group of rotating shafts is connected to the free end of the second cylinder, and the other group of rotating shafts is connected to the external second rotating arm, and a bending portion is provided at the bottom of the other end of the second rotating arm, and a rotatable pressing head is provided at the bottom of the bending portion.

[0012] As a further preferred embodiment, a spring clip is mounted on the rotating shaft, and an opening at the end of the spring clip is clamped on the side wall of the slot body.

[0013] As a further preferred embodiment, a plurality of blowing nozzles are provided in the tool magazine, and the nozzles are located on the sides of the cutting head and the drilling head.

[0014] (3) Beneficial effects

[0015] The utility model provides a CNC machine tool with an automatic material pressing mechanism. It has the following beneficial effects:

[0016] The CNC machine tool with an automatic pressing mechanism is provided with a pressing mechanism that can follow the cutting head. At the end of cutting, the pressing mechanism is driven down by a cylinder and pressed against the sheet to be cut, pressing the sheet to prevent it from falling off before being completely cut. As a result, the cutting head can smoothly complete the entire stroke and cut the sheet completely, avoiding the problem of residual barbs caused by premature sheet falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model from the first perspective;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0019] Figure 3 This is an enlarged view of the structure of point A of the utility model;

[0020] Figure 4 This is a schematic diagram of the material pressing mechanism of the utility model;

[0021] Figure 5 This is a partial schematic diagram of the material pressing mechanism of the utility model;

[0022] Figure 6 This is a running trajectory diagram of a tool in the prior art.

[0023] In the figure: 1. Machine tool body; 2. Tool magazine; 21. Cutting head; 22. Drilling head; 23. Nozzle; 3. First cylinder; 4. Clamping roller; 5. Limiting caliper; 6. Second cylinder; 7. Pressing mechanism; 71. First rotating arm; 72. Trough; 73. Rotating shaft; 74. Bearing; 75. Spring clip; 76. Second rotating arm; 77. Bending part; 78. Clamping head. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] like Figure 1-5 As shown, the utility model provides a technical solution: a CNC machine tool with an automatic pressing mechanism, comprising a machine tool body 1, on which a freely movable tool magazine 2 is provided, wherein the tool magazine 2 is respectively provided with a cutting head 21 and a drilling head 22.

[0026] The tool magazine 2 is provided with a plurality of nozzles 23, which are located on the sides of the cutting head 21 and the drilling head 22. When the heads are working, the nozzles will spray cutting fluid toward the processing parts to cool the tools and blow away waste chips.

[0027] It should be noted that the structural principles of the various components of the tool magazine 2 belong to the conventional structure of CNC machine tools, and the principles are also common knowledge, so they are not described here in detail.

[0028] The machine tool body 1 is provided with a first cylinder 3 which can move back and forth following the tool magazine 2. Two sets of clamping rollers 4 are provided on the top of the first cylinder 3. A gap is reserved between the two sets of clamping rollers 4. The tool magazine 2 is located in the gap. The clamping rollers 4 can move with the tool magazine 2 and clamp the plate near the cutting part. The tool magazine 2 will not interfere with the clamping rollers 4 during operation.

[0029] A limit caliper 5 (fixed by tightening bolts) is provided on one side of the machine tool body 1 .

[0030] Among them, a liftable second cylinder 6 is provided on one side of the cutting head 21, and a deflectable pressing mechanism 7 is installed at the free end of the second cylinder 6. The pressing mechanism 7 is located near the cutting head 21, and the distance between the two can be pre-adjusted according to actual needs.

[0031] The pressing mechanism 7 includes a first rotating arm 71, and both ends of the first rotating arm 71 are provided with a groove body 72. The upper and lower ends of the groove body 72 are provided with bearings 74. A rotatable rotating shaft 73 is provided between the upper and lower bearings 74, and a spring clip 75 is installed on the rotating shaft 73. The end opening of the spring clip 75 is clamped on the side wall of the groove body 72. One group of rotating shafts 73 is connected to the free end of the second cylinder 6, and the other group of rotating shafts 73 is connected to the external second rotating arm 76. The bottom of the other end of the second rotating arm 76 is provided with a bending portion 77, and the bottom of the bending portion 77 is provided with a rotatable pressing head 78. It should be noted that the bending portion 77 is actually equivalent to the third rotating arm, and the bending portion 77 can rotate around the pressing head 78. Similarly, the connection between the pressing head 78 and the bending portion 77 is also connected through the rotating shaft 73, the spring clip 75 and the bearing 74.

[0032] At the same time, the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0033] During use, the plate is placed on the machine tool body 1 and one side of it is fixed by the limit caliper 5. After the power is turned on, the cutting head 21 is used to cut a sheet on the plate. At the end of the cutting, that is, about 2 mm away from the cutting point, the second cylinder 6 is turned on to drive the pressing mechanism 7 to descend as a whole, and the pressing head 78 is pressed against the sheet to be cut to prevent it from moving.

[0034] After that, the cutting head 21 continues to move and cut. At this time, in order to prevent the pressing mechanism 7 from following the displacement of the cutter head, the pressing mechanism 7 is designed to be a deflectable structure, that is, the first rotating arm 71 can move with the cutter head, and the second rotating arm 76 can be deflected relative to the first rotating arm 71. In other words, the movement of the cutter head is followed by the offset of the first rotating arm 71 and the second rotating arm 76 (during the offset process, the spring clip 75 begins to accumulate force under the rotation of the rotating shaft 73), and the clamping head 78 always maintains a clamping state and does not shift until the sheet is cut, so that the cutting head 21 can achieve the purpose of complete cutting and avoid the problem of residual barbs.

[0035] When the cutting is completed, the pressing mechanism 7 leaves the sheet, and the spring clip 75 is released from its constraint, thereby automatically resetting, and then driving the first rotating arm 71 and the second rotating arm 76 to automatically reset, preparing for the next pressing work.

[0036] To sum up, the CNC machine tool with an automatic pressing mechanism is equipped with a pressing mechanism that can follow the cutting head. At the end of cutting, the pressing mechanism is driven down by a cylinder and pressed against the sheet to be cut, pressing the sheet to prevent it from falling off before being completely cut off, so that the cutting head can smoothly complete the entire stroke and cut the sheet completely, avoiding the problem of residual barbs caused by premature falling of the sheet.

[0037] It should be noted that the electrical components appearing in this article are all connected to an external main controller and 220V or 380V mains electricity, and the main controller can be a conventional known device that controls a computer, etc. Its control principle, internal structure, and control switch mode are all conventional means of the prior art, which are directly quoted here without further elaboration. In this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A CNC machine tool with an automatic pressing mechanism, characterized in that: The machine tool comprises a machine tool body (1), wherein a freely movable tool magazine (2) is provided on the machine tool body (1), and a cutting tool head (21) and a drilling tool head (22) are respectively provided in the tool magazine (2); A first cylinder (3) is provided on the machine tool body (1) and can move forward and backward following the tool magazine (2). Two groups of pressing rollers (4) are provided on the top of the first cylinder (3). A gap is reserved between the two groups of pressing rollers (4), and the tool magazine (2) is located in the gap. A limit caliper (5) is provided on one side of the machine tool body (1); A second cylinder (6) that can be raised and lowered is provided on one side of the cutting head (21), and a deflectable pressing mechanism (7) is installed at the free end of the second cylinder (6).

2. A CNC machine tool with an automatic material pressing mechanism according to claim 1, characterized in that: The pressing mechanism (7) comprises a first rotating arm (71), both ends of the first rotating arm (71) are provided with a groove body (72), the upper and lower ends of the groove body (72) are provided with bearings (74), a rotatable rotating shaft (73) is provided between the upper and lower bearings (74), one group of rotating shafts (73) is connected to the free end of the second cylinder (6), and the other group of rotating shafts (73) is connected to the external second rotating arm (76), the bottom of the other end of the second rotating arm (76) is provided with a bending portion (77), and the bottom of the bending portion (77) is provided with a rotatable pressing head (78).

3. A CNC machine tool with an automatic material pressing mechanism according to claim 2, characterized in that: A spring clip (75) is mounted on the rotating shaft (73), and an opening at the end of the spring clip (75) is clamped on the side wall of the groove body (72).

4. A CNC machine tool with an automatic material pressing mechanism according to claim 1, characterized in that: A plurality of blowing nozzles (23) are provided in the tool magazine (2), and the nozzles (23) are located on the sides of the cutting tool head (21) and the drilling tool head (22).

Images