A bending joint turning processing equipment

Abstract

The application provides a kind of elbow joint turning equipment, including workbench, processing chamber, numerical control turning assembly, holder and stopper, processing chamber is fixed on the upper side of workbench, numerical control turning assembly and stopper are fixed at the opposite ends of processing chamber respectively, holder is installed in the middle of processing chamber and is coaxially arranged with stopper, for clamping workpiece, adjusting the inclination angle of workpiece and driving workpiece to rotate;The stopper includes a limiting ring, a plurality of arc-shaped push plates and an adjuster, the push plates are placed in the limiting ring and are coaxially arranged with the limiting ring, a plurality of elastic plates are fixed on the concave surface of the push plates along the radial direction, the adjuster is fixed in the middle of the convex surface of the push plate, the free end of the adjuster penetrates through the inside and outside of the limiting ring, for adjusting the distance between the push plate and the limiting ring.The application solves the problem that it is difficult to overcome centrifugal force in the prior art, which leads to unstable clamping.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical processing, and in particular to a bending joint turning processing equipment. BACKGROUND

[0002] Turning is lathe processing, and lathe processing is part of mechanical processing. Lathe processing mainly uses a turning tool to turn a rotating workpiece, that is, the tool does not move, and the workpiece rotates at high speed. This is feasible for straight workpieces, but it is not feasible for surface turning of curved shaft workpieces because different parts of the workpiece have different shafts and generate a large centrifugal force when rotating, so that the chuck cannot stably clamp the workpiece. Therefore, in most existing technologies, a shaft is first turned, and then the machined shaft is used as a reference to offset and install a five-axis numerical control turning assembly for milling processing. This processing method requires a five-axis numerical control turning assembly, has high labor cost and low processing efficiency, and is not suitable for mass production. SUMMARY

[0003] In view of the deficiencies in the prior art, the present application provides a bending joint turning processing equipment, which solves the problem of instability caused by the difficulty in overcoming the centrifugal force in the prior art.

[0004] According to an embodiment of the present application, a bending joint turning processing equipment device comprises a workbench, a processing chamber, a numerical control turning assembly, a clamp and a stopper. The processing chamber is fixed on the upper side of the workbench. The numerical control turning assembly and the stopper are respectively fixed on the opposite ends of the processing chamber. The clamp is installed in the middle of the processing chamber and is coaxially arranged with the stopper, and is used for clamping a workpiece, adjusting the inclination angle of the workpiece and rotating the workpiece.

[0005] The stopper comprises a limiting ring, a plurality of arc-shaped push plates and an adjuster. The push plates are arranged in the limiting ring and are coaxially arranged with the limiting ring. The concave surface of the push plate is fixed with a plurality of elastic plates along the radial direction. The adjuster is fixed in the middle of the convex surface of the push plate. The free end of the adjuster penetrates the inner and outer sides of the limiting ring, and is used for adjusting the distance between the push plate and the limiting ring.

[0006] Preferably, the adjuster comprises a screw rod and an adjusting disc. One end of the screw rod is fixedly connected with the push plate, and the other end penetrates the inner and outer sides of the limiting ring and is arranged on the outer side of the limiting ring. The adjusting disc is threadedly sleeved on the screw rod and is connected with the limiting ring bearing. A plurality of first limiting columns are fixedly arranged on the side of the adjusting disc away from the limiting ring along the edge of the adjusting disc. An adjusting ring is rotatably sleeved on the limiting ring. A plurality of second limiting columns are fixedly arranged on the edge of one end of the adjusting ring. The first limiting columns can be embedded in the gaps between the second limiting columns.

[0007] Preferably, the first and second limiting posts are both cylindrical, the axis of the first limiting post is perpendicular to the surface of the adjusting disc, and the axis of the second limiting post is perpendicular to the axis of the first limiting post.

[0008] Preferably, the holder comprises a rotating drum, a three-jaw chuck, a positioner, a motor, the three-jaw chuck is arranged in the middle of the rotating drum and coaxially with the rotating drum, two rotating columns are connected to the inner side wall of the rotating drum in a center-symmetric manner, the free ends of the rotating columns are fixedly connected to the side surface of the three-jaw chuck, the upper and lower ends of the inner side wall of the rotating drum are both fixedly provided with one positioner, the free end of the positioner abuts against the three-jaw chuck, both ends of the rotating drum are rotatably provided with a guide ring, the middle part is fixedly provided with a transmission ring, the motor is fixedly arranged on the top side outside the machining chamber, the output end of the motor is fixedly provided with a transmission wheel, the transmission wheel and the transmission ring are connected through a conveying belt, and the conveying belt penetrates through the upper side of the machining chamber.

[0009] Preferably, the positioner comprises a fixed base, an extension rod and a nut, the base is fixedly arranged on the inner side wall of the rotating drum, the extension rod is slidingly inserted into one end of the base away from the rotating drum, and the nut is threadedly sleeved on the extension rod and bearing-connected to one end of the base, and the end of the extension rod away from the base is provided with a round head.

[0010] Preferably, the guide ring comprises a positioning ring and a support column, one end of the positioning ring is provided with a flange extending inwardly, the edges of both ends of the rotating drum abut against the flanges of the two positioning rings respectively, and one support column is fixedly arranged at each of the upper and lower ends of the positioning ring, and the free ends of the support columns at the upper and lower ends are fixedly connected to the upper side wall of the machining chamber and the workbench respectively.

[0011] Compared with the prior art, the present application has the following beneficial effects:

[0012] First, a workpiece is turned to complete a shaft, the turned shaft is a first shaft, and the un-turned shaft is a second shaft, then the holder is used to clamp the connection between the first shaft and the second shaft and adjust the inclination angle of the whole workpiece, so that the second shaft is in a horizontal state and the first shaft is inclined, at the same time, the end of the first shaft away from the second shaft is placed in the limiting ring, and the distance between each push plate and the limiting ring is adjusted through the adjuster, so that the end of the first shaft always presses the elastic plate to make the elastic plate bend, then the holder drives the workpiece to rotate, at this time, the second shaft rotates coaxially with the holder on the horizontal plane, and the first shaft rotates eccentrically, the end of the first shaft makes a circular motion around the center of the limiting ring in the rotating process and constantly presses the surrounding elastic plate, through the resistance and resilience of the elastic plate, the centrifugal force in the rotating process of the first shaft is overcome, so that the whole workpiece will not be unstable due to excessive centrifugal force in the rotating process, at this time, the second shaft of the workpiece can be machined by using the turning equipment of an ordinary numerical control machine tool, and a five-axis numerical control lathe is no longer needed, so that the machining efficiency is high and the cost is low. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the processing equipment according to an embodiment of the present invention.

[0014] Figure 2 This is a structural diagram of the clamping device according to an embodiment of the present invention.

[0015] Figure 3 This is a cross-sectional view of the limiter according to an embodiment of the present invention.

[0016] Figure 4 This is a side view of the limiter according to an embodiment of the present invention.

[0017] In the above attached diagram: 1. Control console; 2. Mounting arm; 3. Processing chamber; 4. Support column; 5. Conveyor belt; 6. Motor; 7. Second shaft; 8. Positioning ring; 9. Rotary drum; 10. Three-jaw chuck; 11. First shaft; 12. Limiting ring; 13. Adjusting ring; 14. Worktable; 15. Base; 16. Telescopic rod; 17. Nut; 18. Rotating column; 19. Elastic plate; 20. Second limiting column; 21. First limiting column; 22. Screw; 23. Adjusting disc; 24. Push plate. Detailed Implementation

[0018] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] like Figures 1 to 4 As shown in the figure, an embodiment of the present invention proposes a bending joint turning equipment device, including a worktable 14, a machining chamber 3, a CNC turning assembly, a clamp and a limiter. The machining chamber 3 is fixed on the upper side of the worktable 14. The CNC turning assembly and the limiter are respectively fixed on the left and right ends of the machining chamber 3. The clamp is installed in the middle of the machining chamber 3 and is coaxially arranged with the limiter. It is used to clamp the workpiece, adjust the tilt angle of the workpiece and drive the workpiece to rotate.

[0020] The limiter includes a limit ring 12, multiple arc-shaped push plates 24, and an adjuster. The push plates 24 are placed inside the limit ring 12 and are coaxially arranged with the limit ring 12. Multiple elastic plates 19 are fixed radially on the concave surface of the push plates 24. The adjuster is fixed in the middle of the convex surface of the push plates 24. The free end of the adjuster passes through the inner and outer sides of the limit ring 12 and is used to adjust the distance between the push plates 24 and the limit ring 12.

[0021] The CNC turning assembly is existing technology and is the same as the CNC turning assembly used in the CK6150 CNC machine tool (ordinary type). It includes a control console 1 and a mounting arm 2. The operator can install various suitable turning tools or drill rods on the mounting arm 2 and control the movement of the mounting arm 2 through the control console 1 to turn the workpiece.

[0022] Firstly, the workpiece is turned to form a shaft, the turned shaft is the first shaft 11, and the un-turned shaft is the second shaft 7. Then, the connector holds the joint of the first shaft 11 and the second shaft 7 and adjusts the inclination angle of the whole workpiece, so that the second shaft 7 is in a horizontal state and the first shaft 11 is inclined. At the same time, the right end of the first shaft 11 is placed in the limiting ring 12, and the distance between each push plate 24 and the limiting ring 12 is adjusted by the adjuster, so that the right end of the first shaft 11 always presses the elastic plate 19 to make the elastic plate 19 bend. Then, the connector drives the workpiece to rotate, at this time, the second shaft 7 rotates coaxially with the connector on the horizontal plane, and the first shaft 11 rotates eccentrically. During the rotation of the first shaft 11, the right end of the first shaft 11 makes a circular motion around the center of the limiting ring 12 and constantly presses the surrounding elastic plate 19. Through the resistance and resilience of the elastic plate 19, the centrifugal force in the rotation process of the first shaft 11 is overcome, so that the whole workpiece will not be unstable due to excessive centrifugal force during rotation. At this time, the second shaft 7 of the workpiece can be processed by using the turning equipment of the ordinary numerical control machine tool, and the five-axis numerical control lathe is no longer needed, so the processing efficiency is high and the cost is low.

[0023] The adjuster includes a screw rod 22 and an adjusting disc 23. One end of the screw rod 22 is fixedly connected with the push plate 24, and the other end penetrates through the inner and outer sides of the limiting ring 12 and is placed outside the limiting ring 12. The adjusting disc 23 is threadedly sleeved on the screw rod 22 and is bearing-connected with the limiting ring 12. A plurality of first limiting columns 21 are fixedly arranged on the side of the adjusting disc 23 away from the limiting ring 12 along the edge of the adjusting disc 23. The limiting ring 12 is rotatably sleeved with an adjusting ring 13. One end edge of the adjusting ring 13 is fixedly provided with a plurality of second limiting columns 20. The first limiting columns 21 can be embedded in the gaps between the second limiting columns 20. The first limiting columns 21 and the second limiting columns 20 are both cylindrical. The axis of the first limiting column 21 is perpendicular to the surface of the adjusting disc 23. The axis of the second limiting column 20 is perpendicular to the axis of the first limiting column 21.

[0024] Since all the first limiting columns 21 are fixedly arranged at intervals along the edge of the adjusting disc 23 to form a circle, and the first limiting columns 21 can be embedded in the gaps between the second limiting columns 20, when the adjusting ring 13 rotates, the second limiting columns 20 are driven to move, which pushes the first limiting columns 21 to move, thereby driving the adjusting disc 23 to rotate. The rotation of the adjusting disc 23 drives the screw rod 22 to move up and down, thereby adjusting the distance between the push plate 24 and the limiting ring 12, and adjusting the distance between the end of the elastic plate 19 and the center of the limiting ring 12 as much as possible, so that the end of the first shaft 11 located in the limiting ring 12 is always in the gap between the elastic plates 19. When the workpiece rotates, the end of the first shaft 11 makes a circular motion along the concave surface of the push plate 24 (the center of the limiting ring 12). Under the resistance and resilience of the elastic plate 19, the centrifugal force in the rotation process of the first shaft 11 is overcome, so that the clamping is stable.

[0025] As Figure 1 and Figure 2 , the clamp includes a rotating drum 9, a three-jaw chuck 10, a positioner, a motor 6, the three-jaw chuck 10 is arranged in the middle of the rotating drum 9 and coaxially arranged with the rotating drum 9, two rotating columns 18 are symmetrically connected to the inner side wall of the rotating drum 9, the free end of the rotating column 18 is fixedly connected with the side surface of the three-jaw chuck 10, the upper and lower ends of the inner side wall of the rotating drum 9 are fixedly provided with a positioner, the free end of the positioner is in abutment with the three-jaw chuck 10, the two ends of the rotating drum 9 are rotatably provided with a guide ring, the middle part is fixedly provided with a transmission ring, the motor 6 is fixedly arranged on the outer top side of the machining chamber 3, the output end of the motor 6 is fixedly provided with a transmission wheel, the transmission wheel and the transmission ring are connected through a conveying belt 5 and the conveying belt 5 penetrates through the upper side of the machining chamber 3; the rotating column 18 and the positioner are not in the same vertical plane.

[0026] The three-jaw chuck 10 is a prior art, a three-jaw chuck 10 manufactured by Sanjiang Company with a model of 3B-10A6 is adopted, the three-jaw chuck 10 is used to clamp the connecting part of the first shaft 11 and the second shaft 7, then the positioners are synchronously adjusted to extend and shrink respectively, the three-jaw chuck 10 is rotated around the rotating column 18, and since the rotating column 18 and the positioner are not in the same vertical plane, the three-jaw chuck 10 will not rotate without adjusting the positioner to extend or shrink, the inclination angle of the three-jaw chuck 10 is fixed, then the motor 6 is started to drive the transmission wheel to rotate, thereby driving the rotating drum 9 to rotate in the guide ring and driving the three-jaw chuck 10 and the workpiece to rotate.

[0027] The positioner includes a fixed base 15, an extension rod 16 and a nut 17, the base 15 is fixedly arranged on the inner side wall of the rotating drum 9, the extension rod 16 is slidingly inserted into one end of the base 15 away from the rotating drum 9, the nut 17 is threadedly sleeved on the extension rod 16 and bearing-connected to one end of the base 15, and the end of the extension rod 16 away from the base 15 is a round head.

[0028] Rotating the nut 17 can make the screw rod 22 extend or shrink, so when adjusting the extension or shrink degree of the screw rod 22, the adjusters at the upper and lower ends should be synchronously adjusted to avoid the angle of extension or shrink at the two ends being inconsistent, thereby causing the three-jaw chuck 10 to be unable to be stably fixed, and the end of the extension rod 16 close to the three-jaw chuck 10 is a round head, so the abutment between the extension rod 16 and the three-jaw chuck 10 is point-to-point contact, no matter how the three-jaw chuck 10 is inclined, the extension rod 16 can be in close contact with the three-jaw chuck 10, and the three-jaw chuck 10 will not be unstable in positioning due to the irregular protrusions on the surface of the workpiece.

[0029] The guide ring comprises locating rings 8 and support columns 4, one end of each locating ring 8 is provided with a flange extending inwardly, the edges of both ends of the rotating drum 9 respectively abut against the flanges of the two locating rings 8, and one support column 4 is fixed to each of the upper and lower ends of each locating ring 8, and the free ends of the support columns 4 at the upper and lower ends are respectively fixedly connected with the upper side wall of the processing chamber 3 and the workbench 14.

[0030] The rotating drum 9 is sleeved with the locating rings 8 at both ends, and under the limitation of the flanges, it can be ensured that the rotating drum 9 will not move left and right when rotating.

[0031] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the present application, and they should all be covered in the scope of the claims of the present application.

Claims

1. A bending sub turning apparatus characterized by: The utility model provides a numerical control lathe, including workbench, processing chamber, numerical control lathe component, holder and stopper, the processing chamber is fixed on workbench upside, numerical control lathe component and stopper are fixed in processing chamber opposite both ends respectively, the holder is installed in the middle part of processing chamber and is arranged coaxially with stopper, is used for clamping workpiece, adjusting the inclination angle of workpiece and drive workpiece rotation; The stopper includes a limiting ring, a plurality of arc-shaped push plates, and an adjuster, the push plates are arranged in the limiting ring and coaxially arranged with the limiting ring, the concave surface of the push plate is fixed with a plurality of elastic plates along the radial direction, the adjuster is fixed in the middle part of the convex surface of the push plate, and the free end of the adjuster penetrates through the inner and outer sides of the limiting ring, used for adjusting the distance between the push plate and the limiting ring.

2. A bent joint turning apparatus according to claim 1, characterized by: The adjuster includes a screw rod and an adjusting disc, one end of the screw rod is fixedly connected with the push plate, the other end penetrates through the inner and outer sides of the limiting ring and is arranged outside the limiting ring, the adjusting disc is threadedly sleeved on the screw rod and is connected with the limiting ring bearing, a plurality of first limiting columns are fixed on the side of the adjusting disc away from the limiting ring along the edge of the adjusting disc, the limiting ring is rotatably sleeved with an adjusting ring, a plurality of second limiting columns are fixed on the edge of one end of the adjusting ring, and the first limiting columns can be embedded in the gap between the second limiting columns.

3. A bent joint turning apparatus according to claim 2, wherein: The first limiting column and the second limiting column are both cylindrical, the axis of the first limiting column is perpendicular to the surface of the adjusting disc, and the axis of the second limiting column is perpendicular to the axis of the first limiting column.

4. A bent joint turning apparatus as claimed in claim 1, characterized in that: The holder includes a rotating cylinder, a three-jaw chuck, a positioner, and a motor, the three-jaw chuck is arranged in the middle part of the rotating cylinder and coaxially arranged with the rotating cylinder, two rotating columns are bearing-connected to the inner side wall of the rotating cylinder in a central symmetric manner, the free ends of the rotating columns are fixedly connected with the side surface of the three-jaw chuck, one of the positioners is fixed to the upper and lower ends of the inner side wall of the rotating cylinder, the free end of the positioner abuts against the three-jaw chuck, a guide ring is rotatably sleeved on both ends of the rotating cylinder, a transmission ring is fixedly sleeved on the middle part of the rotating cylinder, the motor is fixed to the outer top side of the processing chamber, a transmission wheel is fixed to the output end of the motor, the transmission wheel and the transmission ring are connected through a conveying belt, and the conveying belt penetrates through the upper side of the processing chamber.

5. A bent joint turning apparatus as claimed in claim 4, characterized in that: The positioner includes a fixed base, an extension rod, and a nut, the base is fixed to the inner side wall of the rotating cylinder, the extension rod is slidingly inserted into one end of the base away from the rotating cylinder, the nut is threadedly sleeved on the extension rod and bearing-connected to one end of the base, and the end of the extension rod away from the base is a round head.

6. A bent joint turning apparatus as claimed in claim 4, characterized in that: The guide ring includes a positioning ring and a support column, one end of the positioning ring is provided with a flange extending inwardly, the edges of both ends of the rotating cylinder abut against the flanges of the two positioning rings respectively, and one of the support columns is fixed to the upper and lower ends of the positioning ring, and the free ends of the support columns at the upper and lower ends are fixedly connected with the upper side wall of the processing chamber and the workbench respectively.

7. A bent joint turning apparatus as claimed in claim 4, characterized in that: The rotating column and the positioner are not in the same vertical plane.

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