Numerical control vertical lathe with turning tool convenient to replace

Abstract

The utility model relates to the technical field of numerical control vertical lathes, and discloses a numerical control vertical lathe with a turning tool convenient to replace. The numerical control vertical lathe with the turning tool convenient to replace comprises a lathe body, two pressing plates arranged on one side of a tool rest and a plurality of supporting blocks movably embedded in a workbench, when a tool bit needs to be replaced, a first threaded rod is twisted, the first threaded rod can drive a first sliding block to move, the first sliding block does not extrude a second sliding block any more, and therefore the tool bit can be replaced conveniently. Then a new tool bit is placed between the pressing plate and the tool rest, then the first threaded rod is rotated, the first threaded rod drives the first sliding block to extrude the second sliding block, so that the second sliding block pushes the pressing plate, and a lever structure is formed by taking the rotating shaft on the pressing plate as a fulcrum; the tool bit is clamped under the pressing plate, the number of twisted bolts can be reduced when the tool bit is replaced, the working efficiency is improved, and the tool bit is fixed more firmly through the lever principle.

Description

Technical Field

[0001] The utility model relates to the technical field of numerically controlled vertical lathes, in particular to a numerically controlled vertical lathe which is convenient for replacing turning tools. Background Technique

[0002] Numerically controlled vertical lathes are suitable for machining medium and small-sized disc and cover parts, high-strength cast iron bases and columns, and have good stability and seismic performance. The vertical structure is convenient for clamping workpieces and occupies a small floor area.

[0003] When the existing numerically controlled vertical lathe is in use, its tool head generally needs to be clamped and fixed on the tool rest through a plurality of bolts. When replacing the tool head, it is necessary to loosen a plurality of bolts, which is very inconvenient, reduces the work efficiency, and at the same time, when the workbench clamps a workpiece with an irregular shape, part of the workpiece cannot completely adhere to the workbench, and it is easy to tilt during machining. Content of the Utility Model

[0004] The purpose of the utility model is to provide a numerically controlled vertical lathe which is convenient for replacing turning tools, so as to solve the problems put forward in the above background technique.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a numerically controlled vertical lathe which is convenient for replacing turning tools, comprising:

[0006] A lathe main body;

[0007] A tool rest is connected to the lathe main body through a fastener, and a workbench is connected to the inside of the lathe main body through a fastener;

[0008] Two pressing plates arranged on one side of the tool rest, and the two pressing plates are symmetrically distributed about the center;

[0009] A number of support blocks movably fitted inside the workbench;

[0010] Both sides of the pressing plate are rotatably connected with connecting blocks through rotating shafts, one end of the connecting block is welded to the tool rest, a second slider is arranged at one end of the pressing plate far from the connected connecting block, the second slider is close to the pressing plate, and a second sliding groove is opened inside the tool rest, and the second slider is movably fitted in the second sliding groove;

[0011] The bottom of the support block is movably fitted with a fixed column, the fixed column is movably fitted inside the workbench, and the bottom of the fixed column is threadedly connected with a second threaded rod.

[0012] Preferably, a first sliding groove is opened on one side of the second sliding groove, a first slider is movably fitted inside the first sliding groove, the second slider is close to the first slider, and the first sliding groove communicates with the second sliding groove.

[0013] Preferably, a first threaded rod is provided in the first sliding groove. One end of the first threaded rod is welded with a fixed shaft, and the fixed shaft is movably fitted in the tool holder. The first threaded rod penetrates and is threadedly connected to the first slider.

[0014] Preferably, the second threaded rod is movably fitted in the workbench, and a second bevel gear is welded to the bottom of the second threaded rod.

[0015] Preferably, a first bevel gear is meshed with one side of the second bevel gear, and drive shafts are welded to the mutually remote sides of the first bevel gears.

[0016] Preferably, the drive shaft is movably fitted in the workbench, and limit blocks are welded to both sides of the fixed column.

[0017] Preferably, limit grooves are formed on both sides of the fixed column in the workbench, and the limit blocks are movably fitted in the limit grooves.

[0018] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows:

[0019] First, when the tool head needs to be replaced, turn the first threaded rod. The first threaded rod can drive the first slider to move, so that the first slider no longer presses the second slider, and thus the second slider no longer pushes the pressure plate. Then the tool head can be removed. Then place a new tool head between the pressure plate and the tool holder, and then rotate the first threaded rod. The first threaded rod drives the first slider to press the second slider, so that the second slider pushes the pressure plate. A lever structure is formed with the rotating shaft on the pressure plate as the fulcrum, and the tool head is clamped under the pressure plate. When replacing the tool head, the number of bolts to be turned can be reduced, the work efficiency is improved, and the tool head is fixed more firmly by the lever principle.

[0020] Second, when fixing the workpiece on the workbench, according to the shape of the workpiece, turn the drive shaft. The drive shaft can drive the first bevel gear to rotate, the first bevel gear can drive the second bevel gear to rotate, the second bevel gear can drive the second threaded rod to rotate, and the rotation of the second threaded rod can drive the fixed column to move. The fixed column pushes the support block to support the irregular part at the bottom of the workpiece, preventing the workpiece from tilting during processing and increasing the stability when the workpiece is fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a perspective view of the present utility model;

[0022] Figure 2 is a structural diagram of the tool holder of the present utility model;

[0023] Figure 3 is a structural diagram of the cross-section of the tool holder of the present utility model.

[0024] Figure 4 Structural diagram of the workbench of the present utility model.

[0025] Figure 5 Structural diagram of the sectional view of the workbench of the present utility model.

[0026] Figure 6 Structural diagram of the limit block of the present utility model.

[0027] Wherein: 1. Lathe main body; 2. Tool rest; 3. Workbench; 4. Pressure plate; 5. Connecting block; 6. First threaded rod; 7. First chute; 8. First slider; 9. Second chute; 10. Second slider; 11. Fixed shaft; 12. Support block; 13. Driving shaft; 14. Fixed column; 15. First bevel gear; 16. Second bevel gear; 17. Second threaded rod; 18. Limit groove; 19. Limit block. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Please refer to Figure 1-6 , a numerically controlled vertical lathe for facilitating the replacement of turning tools, comprising:

[0030] Lathe main body 1;

[0031] A tool rest 2 is connected to the lathe main body 1 through fasteners, and a workbench 3 is connected to the inside of the lathe main body 1 through fasteners;

[0032] Two pressure plates 4 provided on one side of the tool rest 2, and the two pressure plates 4 are symmetrically distributed about the center;

[0033] A number of support blocks 12 movably fitted inside the workbench 3;

[0034] Both sides of the pressure plate 4 are rotatably connected to a connecting block 5 through a rotating shaft. One end of the connecting block 5 is welded to the tool rest 2. One end of the pressure plate 4 away from the connected connecting block 5 is provided with a second slider 10. The second slider 10 is in close contact with the pressure plate 4. A second chute 9 is opened inside the tool rest 2, and the second slider 10 is movably fitted in the second chute 9;

[0035] The bottom of the support block 12 is movably fitted with a fixed column 14. The fixed column 14 is movably fitted with the workbench 3. The bottom of the fixed column 14 is threadedly connected with a second threaded rod 17. The tool rest 2 and the workbench 3 are existing structures of the lathe main body 1. The tool rest 2 is used to install the tool bit, and the workbench 3 is used to fix the workpiece. The pressing plate 4 can rotate on the connecting block 5 through a rotating shaft. The second slider 10 can slide in the second chute 9. The second slider 10 is used to push one end of the pressing plate 4. The two connecting blocks 5 on both sides of the pressing plate 4 are in a group, and the two groups of connecting blocks 5 are symmetrically distributed. The support block 12 can slide in the workbench 3. The bottom of the support block 12 is spherical. The fixed column 14 can slide in the workbench 3. When the second threaded rod 17 rotates, it can drive the fixed column 14 to move. When the second slider 10 pushes one end of the pressing plate 4, a lever structure can be formed, so that the other end of the pressing plate 4 clamps and fixes the tool. When the tool bit needs to be replaced, turn the first threaded rod 6. The first threaded rod 6 can drive the first slider 8 to move, so that the first slider 8 no longer presses the second slider 10, so that the second slider 10 no longer pushes the pressing plate 4, and thus the tool bit can be removed. Then place the new tool bit between the pressing plate 4 and the tool rest 2, and then turn the first threaded rod 6. The first threaded rod 6 drives the first slider 8 to press the second slider 10, so that the second slider 10 pushes the pressing plate 4. A lever structure is formed with the rotating shaft on the pressing plate 4 as the fulcrum, and the tool bit is clamped under the pressing plate 4. When replacing the tool bit, the number of bolts to be turned can be reduced, the work efficiency is improved, and the tool bit is fixed more firmly through the lever principle.

[0036] Specifically, a first chute 7 is opened on one side of the second chute 9. A first slider 8 is movably fitted in the first chute 7. The second slider 10 is in close contact with the first slider 8. The first chute 7 communicates with the second chute 9.

[0037] Through the above technical solution, the first slider 8 can slide in the first chute 7, and the first slider 8 is used to drive the second slider 10 to move.

[0038] Specifically, a first threaded rod 6 is provided in the first chute 7. One end of the first threaded rod 6 is welded with a fixed shaft 11. The fixed shaft 11 is movably fitted in the tool rest 2. The first threaded rod 6 penetrates and is threadedly connected with the first slider 8.

[0039] Through the above technical solution, the first threaded rod 6 can rotate in the first chute 7. The fixed shaft 11 is used to limit the movement range of the first threaded rod 6. When the first threaded rod 6 rotates, it can drive the first slider 8 to move.

[0040] Specifically, the second threaded rod 17 is movably fitted in the workbench 3. The bottom of the second threaded rod 17 is welded with a second bevel gear 16.

[0041] Through the above technical solution, the second threaded rod 17 can rotate in the workbench 3, and the second bevel gear 16 can drive the second threaded rod 17 to rotate.

[0042] Specifically, a first bevel gear 15 is engaged with one side of a second bevel gear 16, and a drive shaft 13 is welded to the mutually remote sides of the first bevel gears 15.

[0043] Through the above technical solution, the drive shaft 13 can drive the first bevel gear 15 to rotate, and the first bevel gear 15 can drive the second bevel gear 16 to rotate.

[0044] Specifically, the drive shaft 13 is movably fitted into the workbench 3, and limiting blocks 19 are welded to both sides of the fixed column 14.

[0045] Through the above technical solution, the drive shaft 13 can rotate within the workbench 3, and the fixed column 14 can drive the limiting blocks 19 to move.

[0046] Specifically, limiting grooves 18 are formed on both sides of the workbench 3 close to the fixed column 14, and the limiting blocks 19 are movably fitted into the limiting grooves 18.

[0047] Through the above technical solution, the limiting blocks 19 can move within the limiting grooves 18, and the limiting blocks 19 are used to prevent the fixed column 14 from slipping out of the workbench 3.

[0048] During use, the tool bit is clamped and fixed between the pressing plate 4 and the tool rest 2. When the tool bit needs to be replaced, the first threaded rod 6 is twisted. The first threaded rod 6 can drive the first slider 8 to move, so that the first slider 8 no longer presses the second slider 10, so that the second slider 10 no longer pushes the pressing plate 4, so that the tool bit can be removed. Then, a new tool bit is placed between the pressing plate 4 and the tool rest 2, and then the first threaded rod 6 is rotated. The first threaded rod 6 drives the first slider 8 to press the second slider 10, so that the second slider 10 pushes the pressing plate 4. A lever structure is formed with the rotating shaft on the pressing plate 4 as the fulcrum, and the tool bit is clamped under the pressing plate 4. When the workpiece is fixed on the workbench 3, according to the shape of the workpiece, the drive shaft 13 is twisted. The drive shaft 13 can drive the first bevel gear 15 to rotate, the first bevel gear 15 can drive the second bevel gear 16 to rotate, the second bevel gear 16 can drive the second threaded rod 17 to rotate, and the rotation of the second threaded rod 17 can drive the fixed column 14 to move. The fixed column 14 pushes the support block 12 to support the irregular part at the bottom of the workpiece to prevent the workpiece from tilting during processing.

[0049] It should be noted that in this text, 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 "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0050] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A CNC vertical lathe that is convenient for replacing turning tools, characterized in that: include: Lathe body (1); The lathe body (1) is connected to a tool holder (2) via a fastener, and the lathe body (1) is connected to a workbench (3) via a fastener; Two pressing plates (4) are arranged on one side of the tool holder (2), and the two pressing plates (4) are symmetrically distributed around the center; A plurality of support blocks (12) movably embedded in the workbench (3); The two sides of the pressure plate (4) are rotatably connected with connecting blocks (5) via a rotating shaft, one end of the connecting block (5) is welded to the tool holder (2), and the end of the pressure plate (4) away from the connecting block (5) is provided with a second sliding block (10), the second sliding block (10) is closely attached to the pressure plate (4), a second sliding groove (9) is opened in the tool holder (2), and the second sliding block (10) is movably engaged with the second sliding groove (9); A fixing column (14) is movably engaged with the bottom of the support block (12), the fixing column (14) is movably engaged with the workbench (3), and a second threaded rod (17) is threadedly connected to the bottom of the fixing column (14).

2. A CNC vertical lathe for easy replacement of turning tools according to claim 1, characterized in that: A first slide groove (7) is provided on one side of the second slide groove (9), a first slider (8) is movably engaged in the first slide groove (7), the second slider (10) is closely attached to the first slider (8), and the first slide groove (7) is connected to the second slide groove (9).

3. The CNC vertical lathe for easy replacement of turning tools according to claim 2, characterized in that: A first threaded rod (6) is provided in the first sliding groove (7), a fixed shaft (11) is welded to one end of the first threaded rod (6), the fixed shaft (11) is movably embedded in the tool holder (2), and the first threaded rod (6) passes through and is threadedly connected to the first sliding block (8).

4. The CNC vertical lathe for easy replacement of turning tools according to claim 1, characterized in that: The second threaded rod (17) is movably engaged with the workbench (3), and a second bevel gear (16) is welded to the bottom of the second threaded rod (17).

5. The CNC vertical lathe for easy replacement of turning tools according to claim 4, characterized in that: One side of the second bevel gear (16) is meshed with the first bevel gear (15), and a driving shaft (13) is welded to the side of the first bevel gear (15) that is away from each other.

6. The CNC vertical lathe for easy replacement of turning tools according to claim 5, characterized in that: The driving shaft (13) is movably engaged in the workbench (3), and limiting blocks (19) are welded on both sides of the fixing column (14).

7. The CNC vertical lathe for easy replacement of turning tools according to claim 6, characterized in that: Limiting grooves (18) are provided in the workbench (3) near both sides of the fixing column (14), and the limiting blocks (19) are movably engaged with the limiting grooves (18).

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