Double-turning-tool machining tool and machine tool protection structure

Abstract

The utility model discloses a double-turning-tool processing machine tool and a machine tool protection structure, and belongs to the field of machine tools, the double-turning-tool processing machine tool comprises a machine tool base, two opposite tip bases are arranged on the machine tool base, and the two tip bases can move in the same direction or opposite directions; two sets of cutter moving mechanisms are arranged between the two tip bases and can move in the opposite directions and in the opposite directions; turning tools are installed on the two sets of tool moving mechanisms, the turning tools on the two sets of tool moving mechanisms are located on the two sides of a workpiece to be machined respectively, a penetrating transverse guide groove is formed in the center base, a main protection plate is inserted into the transverse guide groove, and the two ends of the main protection plate are fixed to the machine tool base; when the two center bases move, the transverse guide grooves in the center bases can slide along the main protection plate, the two turning tools are symmetrically arranged on the two sides of the workpiece to be machined, deformation of the machined workpiece is avoided, and the main protection plate does not affect movement of the two abutting bases and does not interfere with movement of the tool moving mechanism.

Description

Technical Field

[0001] The utility model relates to the field of machine tools, and particularly relates to a double-turning-tool processing machine tool and a machine tool protection structure. Background Technique

[0002] At present, in order to improve the processing efficiency, large-scale processing machine tools often adopt the method of synchronous processing with two turning tools. However, in order to ensure the synchronization of the two turning tools, the current turning tools are often arranged on the same side of the processing shaft to facilitate the synchronous transmission of the turning tool transmission structure. However, this structure causes the two turning tools to simultaneously abut against each other on one side of the processing shaft, which is extremely easy to cause deformation when processing large pipe fittings.

[0003] In addition, at present, whether it is a double-top-tightening processing machine tool or a double-turning-tool processing machine tool, in order to protect the bottom transmission lead screw, a bellows protective cover is often provided. However, the bellows protective cover itself has a certain compression amount, and the bellows protective cover is prone to accumulating iron filings, which is not conducive to the cleaning of iron filings.

[0004] In view of the above problems, the utility model designs and manufactures a double-turning-tool processing machine tool and a machine tool protection structure to overcome the above defects. Content of the Utility Model

[0005] For the problems existing in the prior art, the double-turning-tool processing machine tool and the machine tool protection structure provided by the utility model symmetrically arrange two turning tools on both sides of the workpiece to be processed, avoiding the deformation of the workpiece to be processed, and eliminating the bellows protective cover. The new protection structure not only does not affect the movement of the two top-tightening seats, but also does not interfere with the movement of the double-turning-tool base.

[0006] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a double-turning-tool processing machine tool includes a machine tool base, two opposite center base seats are arranged on the machine tool base, a workpiece to be processed can be clamped by the two center base seats, and the two center base seats can move towards and away from each other;

[0007] Two sets of tool moving mechanisms are arranged between the two center base seats, and the two sets of tool moving mechanisms can move towards and away from each other;

[0008] Turning tools are installed on both sets of tool moving mechanisms, and the turning tools on the two sets of tool moving mechanisms are respectively located on both sides of the workpiece to be processed.

[0009] Preferably, slider guide rail groups and a first transmission lead screw are arranged at the bottoms of the two center base seats, the threads at both ends of the first transmission lead screw are opposite, the two center base seats are respectively located at both ends of the first transmission lead screw, and the rotation of the first transmission lead screw can drive the two center base seats to move towards and away from each other along the slider guide rail groups.

[0010] Preferably, a second driving lead screw and a slider guide rail group are provided at the bottom of the two sets of the tool moving mechanisms. The threads at both ends of the second driving lead screw are opposite. The two tool moving mechanisms are respectively located at both ends of the second driving lead screw. The rotation of the second driving lead screw can drive the two tool moving mechanisms to move towards and away from each other along the guide rail slider group.

[0011] Preferably, the two turning tools are respectively detachably connected to the tool moving mechanisms.

[0012] Preferably, the front end face of the machine tool base is set as an inclined surface. The two center rest bases and the two sets of tool moving mechanisms are all arranged on the inclined surface at the front end of the machine tool base.

[0013] A machine tool protection structure includes the double-turning-tool processing machine tool as described above. The center rest base includes an upper base and a lower base which are connected to each other. A through horizontal guide groove is provided at the middle position between the upper base and the lower base. A main protection plate is inserted in the horizontal guide groove. Both ends of the main protection plate are fixed on the machine tool base;

[0014] When the two center rest bases move, the horizontal guide groove on the center rest base can slide along the main protection plate.

[0015] Preferably, the main protection plate can shield the transmission structure at the bottom of the center rest base.

[0016] Preferably, the horizontal guide groove includes a trapezoidal groove, and horizontal guide grooves are provided at both ends of the lower bottom surface of the trapezoidal groove;

[0017] The main protection plate includes a trapezoidal frame matching the trapezoidal groove, and horizontal guide plates are provided at both ends of the lower bottom surface of the trapezoidal frame.

[0018] Preferably, a through horizontal guide groove is also provided at the middle position of the tool moving mechanism. When the tool moving mechanism moves, the horizontal guide groove on the tool moving mechanism can slide along the main protection plate.

[0019] Preferably, auxiliary protection plates are arranged in a staggered manner up and down on the outer side of the horizontal guide plate of the main protection plate, and the auxiliary protection plates are also fixed on the machine tool base;

[0020] When the center rest base and the tool moving mechanism are both arranged on the inclined surface at the front end of the machine tool base, the upper auxiliary protection plate is arranged in front of the upper horizontal guide plate, and the lower auxiliary protection plate is arranged behind the lower horizontal guide plate.

[0021] The beneficial effects of this utility model are as follows:

[0022] 1. The present utility model arranges two turning tools on both sides of the workpiece to be machined respectively. Moreover, since the two sets of tool moving mechanisms that drive the turning tools to move are symmetrically arranged, it can ensure that the two turning tools are symmetrically arranged on both sides of the workpiece to be machined respectively. In this way, when the workpiece to be machined is processed, it will be stressed on both sides simultaneously, thus avoiding the deformation problem of the workpiece to be machined when it is a tubular workpiece.

[0023] 2. The main protection plate of the present utility model is slidably arranged in the transverse guide groove of the center base, realizing that the relative movement between the center base and the main protection plate does not interfere. On the basis of ensuring the protection of the transmission structure of the center base, it does not affect the movement of the center base. Moreover, different from the bellows protection cover with a certain compression allowance, the main protection plate of the present utility model does not affect the mutual approach of the two center bases.

[0024] 3. The present utility model further arranges an auxiliary protection plate. By arranging it in a staggered manner with the main protection plate up and down, it not only avoids the structural interference problem with the center base and the tool moving mechanism, but also further improves the protection surface of the entire machine tool base. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of a double-turning-tool machining machine tool;

[0026] Figure 2 is a front view of a double-turning-tool machining machine tool;

[0027] Figure 3 is a schematic diagram of a machine tool protection structure;

[0028] Figure 4 is a partial schematic diagram of a machine tool protection structure.

[0029] In the figure: 1 - machine tool base, 2 - center base, 3 - tool moving mechanism, 4 - turning tool, 5 - main protection plate, 6 - auxiliary protection plate, 21 - upper base, 22 - lower base, 23 - transverse guide groove, 51 - trapezoidal frame, 52 - horizontal guide plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] For the convenience of those skilled in the art to understand, the present utility model will be further described below with reference to the accompanying drawings.

[0031] As shown in Figure 1 and Figure 2 , a double-turning-tool machining machine tool includes a machine tool base 1. Two opposite center bases 2 are arranged on the machine tool base 1. The workpiece to be machined can be clamped by the two center bases 2, and the two center bases 2 can move towards each other and in the opposite direction.

[0032] There are two sets of tool moving mechanisms 3 between the two center bases 2 of the present utility model, and the two sets of tool moving mechanisms 3 can move towards each other and in opposite directions. The front end face of the machine tool base 1 is set as an inclined plane, and the two center bases 2 and the two sets of the tool moving mechanisms 3 are all arranged on the inclined plane at the front end of the machine tool base 1.

[0033] Turning tools 4 are installed on both of the two sets of tool moving mechanisms 3. The turning tools 4 on the two sets of tool moving mechanisms 3 are respectively located on both sides of the workpiece to be machined, and the two turning tools 4 are respectively detachably connected to the tool moving mechanisms 3.

[0034] In the present utility model, the two turning tools 4 are respectively arranged on both sides of the workpiece to be machined, and since the two sets of tool moving mechanisms 3 that drive the turning tools 4 to move are symmetrically arranged, it can be ensured that the two turning tools 4 are symmetrically arranged on both sides of the workpiece to be machined respectively. In this way, when the workpiece to be machined is processed, both sides will be stressed simultaneously, thereby avoiding the deformation problem of the workpiece to be machined when it is a tubular workpiece.

[0035] Specifically, slide block guide groups and a first transmission lead screw are provided at the bottom of the two center bases 2. The threads at both ends of the first transmission lead screw are opposite. The two center bases 2 are respectively located at both ends of the first transmission lead screw. The rotation of the first transmission lead screw can drive the two center bases 2 to move towards each other and in opposite directions along the slide block guide groups. The first transmission lead screw is driven by a main drive servo motor.

[0036] A second transmission lead screw and slide block guide groups are provided at the bottom of the two sets of tool moving mechanisms 3. The threads at both ends of the second transmission lead screw are opposite. The two tool moving mechanisms 3 are respectively located at both ends of the second transmission lead screw. The rotation of the second transmission lead screw can drive the two tool moving mechanisms 3 to move towards each other and in opposite directions along the guide rail slide groups. The second transmission lead screw is driven by another servo motor.

[0037] As Figure 3 、 Figure 4 shown, the present utility model also provides a machine tool protection structure, including the above double-turning-tool processing machine tool. The center base 2 includes an upper base 21 and a lower base 22 that are connected to each other. A through horizontal guide groove 23 is provided at the middle position between the upper base 21 and the lower base 22. A main protection plate 5 is inserted into the horizontal guide groove 23. Both ends of the main protection plate 5 are fixed on the machine tool base 1. When the two center bases 2 move, the horizontal guide groove 23 on the center base 2 can slide along the main protection plate 5, and the main protection plate 5 can shield the transmission structure at the bottom of the center base 2.

[0038] The main protective plate 5 is slidably arranged in the transverse guide groove 23 of the center base 2, so that the relative movement between the center base 2 and the main protective plate 5 does not interfere. On the basis of ensuring the protection of the transmission structure of the center base 2, the movement of the center base 2 is not affected. Moreover, different from the bellows protective cover with a certain compression stock, the main protective plate 5 of the present utility model does not affect the mutual approach of the two center bases 2.

[0039] The transverse guide groove 23 specifically includes a trapezoidal groove, and horizontal guide grooves are provided at both ends of the lower bottom surface of the trapezoidal groove; the main protective plate 5 includes a trapezoidal frame 51 matching the trapezoidal groove. The use of the trapezoidal frame 51 can not only enhance the strength of the main protective plate 5 in the length direction, but also provide a positioning and guiding function in cooperation with the transverse guide groove 23. Horizontal guide plates 52 are provided at both ends of the lower bottom surface of the trapezoidal frame 51, which can further strengthen the protection width on both sides of the main protective plate 5.

[0040] A through transverse guide groove 23 is also provided at the middle position of the tool moving mechanism 3. When the tool moving mechanism 3 moves, the transverse guide groove 23 on the tool moving mechanism 3 can slide along the main protective plate 5, and the structure of its transverse guide groove 23 is the same as that on the center base 2.

[0041] Auxiliary protective plates 6 are arranged up and down in a staggered manner on the outer sides of the horizontal guide plates 52 of the main protective plate 5 of the present utility model, and the auxiliary protective plates 6 are also fixed on the machine tool base 1; when the center base 2 and the tool moving mechanism 3 are both arranged on the inclined surface at the front end of the machine tool base 1, the upper auxiliary protective plate 6 is arranged in front of the upper horizontal guide plate 52, and the lower auxiliary protective plate is arranged behind the lower horizontal guide plate 52, which fully ensures the dropping and collection of iron chips. Moreover, by further arranging the auxiliary protective plates 6 and arranging them in a staggered manner with the main protective plate 5, not only the structural interference problem with the center base 2 and the tool moving mechanism 3 is avoided, but also the protection surface of the entire machine tool base 1 is further improved.

[0042] It should be understood that the uses of these embodiments are only for explaining the present utility model and are not intended to limit the protection scope of the present utility model. In addition, it should also be understood that after reading the technical content of the present utility model, those skilled in the art can make various changes, modifications and / or variations to the present utility model, and all these equivalent forms also fall within the protection scope defined by the appended claims of this application.

Claims

1. A double turning tool processing machine tool, characterized in that: It includes a machine tool base, on which two opposite top bases are arranged, and the workpiece to be processed can be clamped by the two top bases, and the two top bases can move toward and in opposite directions; Two sets of tool moving mechanisms are arranged between the two top bases, and the two sets of tool moving mechanisms can move towards and in opposite directions; The two sets of tool moving mechanisms are both equipped with turning tools, and the turning tools on the two sets of tool moving mechanisms are respectively located at two sides of the workpiece to be processed.

2. A double turning tool processing machine tool according to claim 1, characterized in that: A slider guide rail group and a first transmission screw are provided at the bottom of the two top bases. The threads at both ends of the first transmission screw are opposite. The two top bases are respectively located at both ends of the first transmission screw. The rotation of the first transmission screw can drive the two top bases to move toward and oppositely along the slider guide rail group.

3. A double turning tool processing machine tool according to claim 2, characterized in that: A second transmission screw and a slider guide rail group are provided at the bottom of the two sets of tool moving mechanisms. The threads at both ends of the second transmission screw are opposite. The two tool moving mechanisms are respectively located at both ends of the second transmission screw. The rotation of the second transmission screw can drive the two tool moving mechanisms to move toward and oppositely along the guide rail slider group.

4. A double turning tool processing machine tool according to claim 1, characterized in that: The two turning tools are detachably connected to the tool moving mechanism.

5. The double-turning tool processing machine tool according to claim 1, characterized in that: The front end surface of the machine tool base is set as an inclined surface, and the two center bases and two sets of tool moving mechanisms are all arranged on the inclined surface at the front end of the machine tool base.

6. A machine tool protection structure, comprising a double-turning tool processing machine tool as claimed in any one of claims 1 to 5, wherein the top base comprises an upper base and a lower base connected to each other, a through transverse guide groove is provided in the middle position between the upper base and the lower base, a main protection plate is inserted in the transverse guide groove, and both ends of the main protection plate are fixed to the machine tool base; When the two top bases move, the transverse guide grooves on the top bases can slide along the main protective plate.

7. A machine tool protection structure according to claim 6, characterized in that: The main protection plate can shield the transmission structure at the bottom of the top base.

8. A machine tool protection structure according to claim 6, characterized in that: The transverse guide groove comprises a trapezoidal groove, and horizontal guide grooves are provided at both ends of the lower bottom surface of the trapezoidal groove; The main protective plate comprises a trapezoidal frame matching the trapezoidal groove, and horizontal guide plates are arranged at both ends of the lower bottom surface of the trapezoidal frame.

9. A machine tool protection structure according to claim 6, characterized in that: A penetrating transverse guide groove is also provided in the middle position of the tool moving mechanism. When the tool moving mechanism moves, the transverse guide groove on the tool moving mechanism can slide along the main protective plate.

10. A machine tool protection structure according to claim 8, characterized in that: Auxiliary protective plates are staggered up and down on the outer side of the horizontal guide plate of the main protective plate, and the auxiliary protective plates are also fixed on the machine tool base; When the top base and the tool moving mechanism are both arranged on the inclined surface at the front end of the machine tool base, the upper auxiliary protective plate is arranged in front of the upper horizontal guide plate, and the lower auxiliary protective plate is arranged behind the lower horizontal guide plate.

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