Double-spindle device of inverted automatic turning machine tool

Abstract

The utility model relates to the technical field of machine tool feeding, in particular to an inverted automatic turning machine tool double-spindle device which comprises a lathe body, a feeding frame arranged on one side of the lathe body, a movable guide rail assembly installed on the upper portion of the interior of the lathe body and a cutting spindle installed on the movable guide rail assembly. A feeding plate with a plurality of mounting holes formed in the surface is mounted on the feeding frame, fixing structures used for fixing bars with different outer diameters are arranged in the mounting holes, when the bars with different outer diameters need to be placed, only the bars need to be aligned with the mounting holes and then inserted, the fixing structures can extrude the two sides of the bars, the bars with different outer diameters are centered, and the bars with different outer diameters can be placed in the middle. And therefore, it is guaranteed that the axes of the bars cannot deviate, the mounting holes can adapt to the bars with different outer diameters, and the practicability and applicability of the feeding plate are improved.

Description

Technical Field

[0001] The present application relates to the technical field of machine tool loading, and in particular to a dual-spindle device for an inverted automatic turning machine tool. Background Art

[0002] The double-spindle inverted automatic turning machine is a CNC lathe with two inverted cutting spindles. This machine usually includes a lathe body, a loading rack is provided on one side of the body, and a belt conveyor is provided on the other side. Two inverted cutting spindles are installed above the lathe body through a movable guide rail assembly, and a servo tool holder opposite to each cutting spindle is provided below each cutting spindle.

[0003] In the prior art, in order to load multiple bars at one time, a loading plate with multiple mounting holes on the surface is installed on the loading rack. Multiple bars are transported to one side of the main body at one time through the loading plate, and the cutting spindle moves along the movable guide rail to the top of the loading plate to clamp the workpiece. Although the loading plate can transport multiple bars to one side of the main body at one time, the mounting holes on the loading plate can only be used for bars with the same outer diameter. If bars of different outer diameters are placed in the mounting holes, it is easy to cause the axis of the cutting spindle to not be aligned with the axis of the bar when the cutting spindle clamps the bar, resulting in failure of the cutting spindle to clamp the bar. Every time the staff changes bars of different outer diameters, they need to replace the corresponding loading plate, which is very inconvenient. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this application is to provide an inverted automatic turning machine tool dual-spindle device to solve the technical problem in the prior art that the mounting holes opened on the loading plate cannot be used for bars with different outer diameters.

[0005] The above-mentioned purpose of the present application is achieved through the following technical scheme: an inverted automatic turning machine tool dual-spindle device, including a lathe body, a loading rack arranged on one side of the body, a movable guide rail assembly installed on the upper part of the lathe body, and a cutting spindle installed on the movable guide rail assembly, the loading rack is equipped with a loading plate with a plurality of mounting holes on the surface, and the mounting holes are provided with a fixing structure for fixing rods of different outer diameters.

[0006] Furthermore, the fixing structure includes arc-shaped extrusion plates relatively arranged on both sides of the mounting hole and a support spring arranged on the inner wall of the mounting hole for pushing the two arc-shaped extrusion plates closer to each other, and the arc surface of the arc-shaped extrusion plates faces the inner wall of the mounting hole.

[0007] By adopting the above technical solution, when it is necessary to place the bar on the loading plate, it is only necessary to align the bar with the mounting hole and then insert the bar so that the bar squeezes the arc-shaped extrusion plate. At the same time, the arc-shaped extrusion plate will also squeeze the two sides of the bar so that the bar is centered, thereby ensuring that the axis of the bar will not deviate, making it more convenient for the staff to place the bar. When it is necessary to place bars with different outer diameters, it is also only necessary to align the bar with the mounting hole and then insert the bar. The arc-shaped extrusion plate will be supported by the spring to push the two sides of the bar to extrude the bars, so that the bars with different outer diameters are centered, thereby ensuring that the axis of the bar will not deviate, and the mounting hole can adapt to bars with different outer diameters, thereby improving the practicality and applicability of the loading plate.

[0008] Furthermore, a receiving groove for receiving the arc-shaped extrusion plate is provided on the inner wall of the mounting hole, and the support spring is located in the receiving groove, with one end fixedly connected to the loading plate and the other end fixedly connected to the arc surface of the arc-shaped extrusion plate.

[0009] By adopting the above technical solution, although the setting of the fixed structure enables the mounting hole to adapt to rods with different outer diameters, thereby improving the practicality and applicability of the loading plate, the fixed structure also occupies the space in the mounting hole, so that the rod that could have been inserted into the mounting hole is blocked due to the setting of the fixed structure. The setting of the storage groove solves this technical problem. Through the setting of the storage groove, the arc extrusion plate can be retracted into the storage groove without occupying the space in the mounting hole, so that rods with a diameter similar to that of the mounting hole can also be inserted into the mounting hole for processing, thereby further improving the practicality and applicability of the loading plate.

[0010] Furthermore, an arc portion is provided on the upper end of the arc-shaped extrusion plate.

[0011] By adopting the above technical solution, although the setting of the storage groove further improves the practicality and applicability of the loading plate, when a rod with a diameter similar to that of the mounting hole is inserted into the mounting hole, it is necessary to press the arc extrusion plate into the storage groove first, which makes it very inconvenient for the staff to place the rod. The setting of the arc part solves this technical problem. When a rod with a diameter similar to that of the mounting hole is inserted into the mounting hole, the bottom surface of the rod will first contact the arc part. As the rod continues to be inserted, the rod will rub against the arc part to squeeze the arc extrusion plate into the storage groove. In this way, the staff does not need to press the arc extrusion plate in advance, making it more convenient for the staff to place the rod.

[0012] Furthermore, a contraction device for driving the bar material to contract is provided on the bottom surface of the mounting hole.

[0013] Furthermore, the shrinking device includes a supporting base plate arranged in the mounting hole for supporting the rod material, and a supporting top spring arranged on the bottom surface of the supporting base plate for pushing the supporting base plate. The supporting top spring is located in the mounting hole, one end of which is fixedly connected to the loading plate, and the other end is fixedly connected to the supporting base plate.

[0014] By adopting the above technical scheme, when the cutting spindle clamps the bar in the mounting hole, because the cutting spindle itself occupies a certain space, the distance between two adjacent mounting holes must be set wider, otherwise the cutting spindle will compress the bar in the mounting hole adjacent to it when clamping the bar, causing damage to the bar, resulting in a low utilization rate of the loading plate. The setting of the contraction device solves this technical problem. Through the setting of the contraction device, the bar will shrink by pressing the supporting bottom plate when it is compressed, so that the bar will not be damaged, and when the cutting spindle clamps the bar away, the supporting top spring will reset the compressed bar, and the staff can set the distance between adjacent mounting holes to be narrower, thereby improving the utilization rate of the loading plate.

[0015] Furthermore, the outer side of the support spring is provided with a flexible rubber sleeve for preventing the support spring from oxidation.

[0016] Furthermore, the main material of the flexible rubber sleeve is fluororubber or EPDM rubber.

[0017] By adopting the above technical solution, the service life of the support spring can be increased.

[0018] In summary, the present application includes at least one of the following beneficial technical effects:

[0019] By setting up the fixed structure, when it is necessary to place the bar on the loading plate, it is only necessary to align the bar with the mounting hole and then insert the bar, so that the bar squeezes the arc-shaped extrusion plate. At the same time, the arc-shaped extrusion plate will also squeeze the two sides of the bar to center the bar, thereby ensuring that the axis of the bar will not deviate, making it more convenient for the staff to place the bar. When it is necessary to place bars with different outer diameters, it is also only necessary to align the bar with the mounting hole and then insert the bar. The arc-shaped extrusion plate will be supported by the spring to push the two sides of the bar to extrude the bars, so that the bars with different outer diameters are centered, thereby ensuring that the axis of the bar will not deviate, and the mounting hole can adapt to bars with different outer diameters, thereby improving the practicality and applicability of the loading plate. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 is along Figure 1 Sectional view along line AA;

[0022] Figure 3 yes Figure 2 Enlarged view of part A in the middle.

[0023] Figure numerals: 1. Lathe body; 10. Loading rack; 11. Loading plate; 12. Mounting hole; 13. Storage slot; 2. Fixing structure; 20. Arc extrusion plate; 21. Support spring; 22. Arc portion; 23. Flexible rubber sleeve; 3. Contraction device; 30. Support base plate; 31. Support top spring. DETAILED DESCRIPTION

[0024] The present application is further described in detail below in conjunction with the accompanying drawings.

[0025] Example, see Figure 1 , Figure 2 , Figure 3 , an inverted automatic turning machine tool dual spindle device, including a lathe body 1 as a core part, and a loading rack 10 arranged on one side of the lathe body 1. A moving guide rail assembly is installed on the upper part of the lathe body 1, and a cutting spindle is installed on the moving guide rail assembly. A loading plate 11 is fixedly installed on the loading rack 10, and a plurality of mounting holes 12 are opened on the surface of the loading plate 11.

[0026] A fixing structure 2 for fixing bars of various outer diameters is arranged in these mounting holes 12. The fixing structure 2 consists of two parts: first, arc-shaped extrusion plates 20 are arranged opposite to each other on both sides of the mounting hole 12, and their arc surfaces face the inner wall of the mounting hole 12; second, support springs 21 are arranged on the inner wall of the mounting hole 12, which are used to push the two arc-shaped extrusion plates 20 closer to each other, providing a solid guarantee for the stability of the bar.

[0027] When the bar needs to be placed on the loading plate 11, the operator simply aligns the bar with the mounting hole 12 and then gently inserts it. During this process, the bar will naturally squeeze the arc-shaped squeezing plate 20, and the arc-shaped squeezing plate 20 squeezes both sides of the bar with its unique curvature, so that the bar is centered in the mounting hole 12, thereby ensuring that the axis of the bar will not be offset. This design greatly simplifies the operating process of the operator to place the bar and improves work efficiency.

[0028] When bars of different outer diameters need to be placed, the fixing structure 2 can also demonstrate its excellent adaptability. The operator only needs to align bars of different sizes with the mounting hole 12 and then insert them. At this time, the arc-shaped extrusion plate 20 will squeeze the bar under the push of the support spring 21. No matter how the outer diameter of the bar changes, it can be firmly fixed in the center, thereby ensuring that the axis of the bar will never shift. This feature allows the mounting hole 12 to easily adapt to bars of various sizes, greatly improving the practicality and applicability of the loading plate 11, and providing strong support for the efficient operation of the automatic turning machine.

[0029] Although the setting of the fixing structure 2 enables the mounting hole 12 to adapt to rods of different outer diameters, thereby improving the practicality and applicability of the loading plate 11, the fixing structure 2 also occupies the space within the mounting hole 12, so that the rod that could have been inserted into the mounting hole 12 is blocked due to the setting of the fixing structure 2. In order to solve this technical problem, the present embodiment provides a receiving groove 13 on the inner wall of the mounting hole 12 for accommodating the arc-shaped extrusion plate 20. The support spring 21 is located in the receiving groove 13, one end of which is fixedly connected to the loading plate 11, and the other end is fixedly connected to the arc surface of the arc-shaped extrusion plate 20. Through the setting of the receiving groove 13, the arc-shaped extrusion plate 20 can be retracted into the receiving groove 13 without occupying the space within the mounting hole 12, so that rods with a diameter similar to that of the mounting hole 12 can also be inserted into the mounting hole 12 for processing, thereby further improving the practicality and applicability of the loading plate 11.

[0030] Although the provision of the storage groove 13 further improves the practicality and applicability of the loading plate 11, when a rod with a diameter similar to that of the mounting hole 12 is inserted into the mounting hole 12, it is necessary to first press the arc extrusion plate 20 into the storage groove 13, which makes it very inconvenient for the staff to place the rod. In order to solve this technical problem, the present embodiment provides an arc portion 22 at the upper end of the arc extrusion plate 20. When a rod with a diameter similar to that of the mounting hole 12 is inserted into the mounting hole 12, the bottom surface of the rod will first contact the arc portion 22. As the rod is continued to be inserted, the rod will rub against the arc portion 22 to squeeze the arc extrusion plate 20 into the storage groove 13. In this way, the staff does not need to press the arc extrusion plate 20 in advance, making it more convenient for the staff to place the rod.

[0031] In this embodiment, when the cutting spindle clamps the bar in the mounting hole 12, because the cutting spindle itself occupies a certain space, the distance between two adjacent mounting holes 12 must be set wider, otherwise the cutting spindle will press the bar in the mounting hole 12 adjacent to it, causing damage to the bar, resulting in a low utilization rate of the loading plate 11. In order to solve this technical problem, in this embodiment, a contraction device 3 for driving the bar to contract is provided on the bottom surface of the mounting hole 12, and the contraction device 3 includes a support provided in the mounting hole 12 for supporting the bar. The support base plate 30 is arranged on the bottom surface of the support base plate 30 to push the support top spring 31 of the support base plate 30. The support top spring 31 is located in the mounting hole 12, one end of which is fixedly connected to the loading plate 11, and the other end is fixedly connected to the support base plate 30. Through the setting of the contraction device 3, when the rod is compressed, it will press the support base plate 30 to contract, so that the rod will not be damaged, and when the cutting spindle clamps the rod away, the support top spring 31 will reset the compressed rod, and the staff can set the distance between adjacent mounting holes 12 to be narrower, thereby improving the utilization rate of the loading plate 11.

[0032] In this embodiment, a flexible rubber sleeve 23 is provided on the outer side of the support spring 21 to prevent the support spring 21 from oxidation. The main material of the flexible rubber sleeve 23 is fluororubber or EPDM rubber. The flexible rubber sleeve 23 is used to increase the service life of the support spring 21.

[0033] Specific implementation process: just align the rod with the mounting hole 12, and then insert the rod so that the rod squeezes the arc extrusion plate 20. At the same time, the arc extrusion plate 20 will also squeeze both sides of the rod to center the rod, thereby ensuring that the axis of the rod will not deviate, making it more convenient for the staff to place the rod.

[0034] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An inverted automatic turning machine tool dual-spindle device, comprising a lathe body (1), a loading rack (10) arranged on one side of the body, a movable guide rail assembly installed on the upper part of the lathe body (1), and a cutting spindle installed on the movable guide rail assembly, characterized in that: The loading rack (10) is provided with a loading plate (11) with a plurality of mounting holes (12) on its surface, and a fixing structure (2) for fixing rods with different outer diameters is provided in the mounting holes (12).

2. The inverted automatic turning machine tool dual spindle device according to claim 1, characterized in that: The fixing structure (2) comprises arc-shaped extrusion plates (20) arranged on two sides of the interior of the mounting hole (12) and a support spring (21) arranged on the inner wall of the mounting hole (12) for pushing the two arc-shaped extrusion plates (20) toward each other, wherein the arc surface of the arc-shaped extrusion plates (20) faces the inner wall of the mounting hole (12).

3. The inverted automatic turning machine tool dual spindle device according to claim 2, characterized in that: A receiving groove (13) for receiving the arc-shaped extrusion plate (20) is provided on the inner wall of the mounting hole (12); the support spring (21) is located in the receiving groove (13), one end of which is fixedly connected to the loading plate (11) and the other end of which is fixedly connected to the arc surface of the arc-shaped extrusion plate (20).

4. The inverted automatic turning machine tool dual spindle device according to claim 2, characterized in that: The upper end of the arc-shaped extrusion plate (20) is provided with an arc portion (22).

5. The inverted automatic turning machine tool dual spindle device according to claim 1, characterized in that: The bottom surface of the mounting hole (12) is provided with a contraction device (3) for driving the bar material to contract.

6. The inverted automatic turning machine tool dual spindle device according to claim 5, characterized in that: The shrinking device (3) comprises a supporting base plate (30) arranged in the mounting hole (12) for supporting the bar material, and a supporting top spring (31) arranged on the bottom surface of the supporting base plate (30) for pushing the supporting base plate (30); the supporting top spring (31) is located in the mounting hole (12), one end of which is fixedly connected to the loading plate (11), and the other end of which is fixedly connected to the supporting base plate (30).

7. The inverted automatic turning machine tool dual spindle device according to claim 2, characterized in that: The outer side of the support spring (21) is provided with a flexible rubber sleeve (23) for preventing the support spring (21) from being oxidized.

8. The inverted automatic turning machine tool dual spindle device according to claim 7, characterized in that: The main material of the flexible rubber sleeve (23) is fluororubber or EPDM rubber.

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