Bar positioning mechanism for numerical control machine tool

Abstract

The bar positioning mechanism comprises a cutting bin, a rotating rod driven by a motor to rotate is arranged on the cutting bin, an abutting plate is connected into the cutting bin in a sliding mode, a screw hole in threaded connection with the rotating rod is formed in the abutting plate, the abutting plate is connected with a pressing plate in a limiting mode, and the pressing plate is provided with a pressing plate. A sliding block is fixed to the pressing plate, and a sliding groove connected with the sliding block in a sliding mode is formed in the cutting bin. According to the device, the rotating rod is driven to rotate under the action of the motor, so that the position of the abutting plate is changed, the abutting plate can be matched with a cutter of a numerical control machine tool, and when the cutter cuts a bar, the abutting plate can press the bar, so that the bar is effectively prevented from tilting upwards under the action of the cutter, workers do not need to control the bar manually, and the working efficiency is improved. And therefore, the device is safer and simpler.

Description

Technical Field

[0001] The utility model relates to the technical field of numerically controlled machine tools, in particular to a bar positioning mechanism used for numerically controlled machine tools. Background Art

[0002] When the CNC machine tool is cutting the rods, the staff needs to manually use tools to press the rods into the conveying trough in order to prevent the rods from tilting upward and falling out of the conveying trough under the action of the cutter.

[0003] This undoubtedly increases the workload of the staff, and the force of the cutter when cutting the bar is large, and the number of bars cut at one time is large. If the staff is not careful, the cut bar will be lifted up and out of the conveying chute. Therefore, it is necessary to improve the traditional CNC machine tool to add a mechanism for positioning the cut bar. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems and to propose a rod positioning mechanism for a numerically controlled machine tool.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A rod positioning mechanism for a CNC machine tool comprises a cutting chamber, wherein the cutting chamber is provided with a rotating rod driven to rotate by a motor, a support plate is slidably connected inside the cutting chamber, a screw hole is provided on the support plate and is threadedly connected to the rotating rod, the support plate is connected to a pressure plate via a limiter, a slider is fixed to the pressure plate, and a sliding groove is provided on the cutting chamber and is slidably connected to the slider.

[0007] Preferably, the limiting member includes a vertical hole on the abutment plate, and a vertical rod is slidably connected to the vertical hole, a spring is sleeved on the vertical rod, and a horizontal plate is fixed to one end of the vertical rod, and an end block is fixed to the other end.

[0008] Preferably, one end of the spring is fixedly connected to the abutment plate, and the other end of the spring is fixedly connected to the end block.

[0009] Preferably, a card slot is provided on the abutment plate, and a card block matched with the card slot is fixed on the pressure plate.

[0010] Preferably, the abutment plate is provided with evenly distributed arc grooves, and a rubber gasket protrudes from the portion where the arc groove contacts the rod.

[0011] Preferably, an anti-slip protrusion is provided on the portion where the cross plate contacts the bending portion of the pressure plate.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] 1. The present application drives the rotating rod to rotate under the action of the motor, thereby changing the position of the abutment plate, so that the abutment plate can cooperate with the cutter of the CNC machine tool. When the cutter cuts the bar, the abutment plate can press the bar, thereby effectively preventing the bar from tilting upward under the action of the cutter. The staff does not need to manually control the bar to limit it, which is safer and simpler.

[0014] 2. In the present application, the cross plate moves downward under the elastic force of the spring, pressing the bent part of the pressure plate to be fixed with the back plate, and the slider on the pressure plate is in the slide groove. At this time, the pressure plate cannot be separated from the back plate, and the slider cannot be separated from the slide groove, so the back plate cannot be separated from the cutting chamber. The staff can determine whether the back plate needs to be installed according to the actual situation, or install the required back plate to play the positioning effect on the rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The overall structural diagram of the rod positioning mechanism provided according to the embodiment of the utility model is shown;

[0016] Figure 2 A schematic diagram of the structure of each part of the rod positioning mechanism provided according to an embodiment of the utility model is shown;

[0017] Figure 3 A schematic diagram of the structure of a pressure plate portion provided according to an embodiment of the utility model is shown.

[0018] Legend:

[0019] 1. Cutting chamber; 2. Rotating rod; 3. Abutment plate; 4. Arc groove; 5. Screw hole; 6. Vertical hole; 7. Horizontal plate; 8. Vertical rod; 9. Spring; 10. End block; 11. Slot; 12. Pressing plate; 13. Block; 14. Sliding block; 15. Slide groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1:

[0022] The utility model provides a technical solution, please refer to Figure 1-3 :

[0023] A rod positioning mechanism for a numerically controlled machine tool comprises a cutting chamber 1, a rotating rod 2 driven to rotate by a motor is provided on the cutting chamber 1, a counter plate 3 is slidably connected in the cutting chamber 1, a screw hole 5 connected to the rotating rod 2 by a thread is provided on the counter plate 3, a pressing plate 12 is connected to the counter plate 3 by a stopper, a slider 14 is fixed on the pressing plate 12, and a slide groove 15 connected to the slider 14 by a slide groove 15 is provided on the cutting chamber 1. The counter plate 3 is provided with evenly distributed arc grooves 4, and a rubber gasket protrudes from the part of the arc groove 4 that contacts the rod. The rod is inserted into the cutting chamber 1, and the motor drives the rotating rod 2 to rotate, so that the counter plate 3 presses the rod tightly. When the cutter cuts the rod, the rod is restricted by the counter plate 3 and cannot be forced to tilt upward.

[0024] Embodiment 2:

[0025] The technical solution is basically the same as that of the first embodiment, except that Figure 2 and Figure 3 As shown, the limiting member includes a vertical hole 6 formed on the support plate 3, and a vertical rod 8 is slidably connected to the vertical hole 6, a spring 9 is sleeved on the vertical rod 8, and a horizontal plate 7 is fixed to one end of the vertical rod 8, and a non-slip protrusion is provided on the portion of the horizontal plate 7 that contacts the bending part of the pressure plate 12, and an end block 10 is fixed to the other end. One end of the spring 9 is fixedly connected to the support plate 3, and the other end is fixedly connected to the end block 10. A card slot 11 is formed on the support plate 3, and a card block 13 adapted to the card slot 11 is fixed to the pressure plate 12. Under the elastic force of the spring 9, the horizontal plate 7 moves downward, pressing the bending part of the pressure plate 12 to be fixed to the support plate 3, and the slider 14 on the pressure plate 12 is in the slide groove 15. At this time, the pressure plate 12 cannot be separated from the support plate 3, and the slider 14 cannot be separated from the slide groove 15, so the support plate 3 cannot be separated from the cutting chamber 1.

[0026] In summary, after the screw hole 5 on the abutment plate 3 is connected to the rotating rod 2 through a threaded connection, the horizontal plate 7 can be pulled up. Then, the block 13 of the pressing plate 12 can be engaged with the slot 11 on the abutment plate 3, and the slide block 14 extends into the slide slot 15. The pulling force on the horizontal plate 7 is released, and under the elastic force of the spring 9, the horizontal plate 7 presses the pressing plate 12, and the pressing plate 12 is fixed to the abutment plate 3 as a whole, and the abutment plate 3 cannot be separated from the cutting chamber 1 at this time.

[0027] The machine tool extends the bar into the cutting chamber 1, and the motor drives the rotating rod 2 to rotate until the plate 3 presses the bar into the cutting chamber 1. After the cutter on the machine tool cuts the bar, the motor drives the rotating rod 2 to rotate in the opposite direction, and the plate 3 moves up, and the staff can take away the cut bar.

[0028] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rod positioning mechanism for a numerically controlled machine tool, comprising a cutting chamber (1), characterized in that: The cutting chamber (1) is provided with a rotating rod (2) driven to rotate by a motor, a support plate (3) is slidably connected inside the cutting chamber (1), a screw hole (5) is provided on the support plate (3) and is threadedly connected to the rotating rod (2), the support plate (3) is connected to a pressure plate (12) via a limiter, a slider (14) is fixed on the pressure plate (12), and a sliding groove (15) is provided on the cutting chamber (1) and is slidably connected to the slider (14).

2. A rod positioning mechanism for a CNC machine tool according to claim 1, characterized in that: The limiting member comprises a vertical hole (6) formed on a support plate (3), and a vertical rod (8) slidably connected to the vertical hole (6), a spring (9) sleeved on the vertical rod (8), and a horizontal plate (7) fixed at one end of the vertical rod (8) and an end block (10) fixed at the other end.

3. A rod positioning mechanism for a CNC machine tool according to claim 2, characterized in that: One end of the spring (9) is fixedly connected to the abutment plate (3), and the other end is fixedly connected to the end block (10).

4. A rod positioning mechanism for a CNC machine tool according to claim 2, characterized in that: The abutment plate (3) is provided with a card slot (11), and a card block (13) adapted to the card slot (11) is fixed on the pressure plate (12).

5. The rod positioning mechanism for a CNC machine tool according to claim 1, characterized in that: The abutment plate (3) is provided with evenly distributed arc grooves (4), and a rubber gasket protrudes from the portion where the arc groove (4) contacts the rod.

6. The rod positioning mechanism for a CNC machine tool according to claim 2, characterized in that: An anti-slip protrusion is provided on the portion where the cross plate (7) contacts the bending portion of the pressure plate (12).

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