Rapid material changing structure of water pump shaft machining lathe

Abstract

The utility model relates to the technical field of lathe machining, in particular to a quick material changing structure of a water pump shaft machining lathe, which comprises a U-shaped frame, two arms of the U-shaped frame are respectively positioned at the top end in the machining lathe, a turning mechanism and a pulling mechanism are arranged between the two arms of the U-shaped frame, and the turning mechanism comprises a motor box. According to the utility model, the electric push rod is started under the control of the PLC to drive the supporting plate to move upwards, so that the water pump shaft is clamped into the clamping groove, and meanwhile, the electric push rod abuts against the sliding plate through the adjacent guide rods and the supporting arms to move, so that the sliding plate drives the two guide rods to move oppositely, and the two rubber wheels are contacted with the water pump shaft; after the water pump shaft is pulled out of the automatic chuck, the stepping motor is started to drive the water pump shaft to turn the direction, and the machined end face of the water pump is inserted into the automatic chuck in cooperation with starting of the driving motor; therefore, the direction of the water pump shaft can be automatically turned.

Description

Technical Field

[0001] The utility model relates to the technical field of lathe processing, in particular to a quick material changing structure of a water pump shaft processing lathe. Background Art

[0002] Generally, lathes use a chuck to clamp the workpiece, and then use the tool holder to move so that the tool contacts the rotating workpiece for cutting and other processing operations. However, CNC lathes can usually use an automatic chuck to automatically clamp and place the workpiece. When processing shaft workpieces such as water pump shafts, it may be necessary to process both ends of some water pump shafts. Since general CNC lathes generally only have one automatic chuck and tool holder, usually only one end face of the shaft workpiece can be processed. The operator needs to manually turn the shaft workpiece in order to process the other end face, which is quite inconvenient.

[0003] CNC lathes can be equipped with industrial robotic arms and other equipment to assist in loading and unloading. However, if the industrial robotic arm is used to turn the direction of the water pump shaft, the movement of the industrial robotic arm will be increased, resulting in increased control complexity, programming difficulty, and increased debugging and maintenance costs, which is inconvenient.

[0004] In addition, when a lathe performs end face processing on a shaft workpiece, long iron chips may be generated. These iron chips may be wrapped around the shaft workpiece. It is inconvenient for a general industrial robot arm to remove these iron chips wrapped around the shaft workpiece when grabbing the workpiece, which is quite inconvenient. Utility Model Content

[0005] The purpose of the utility model is to provide a rapid material changing structure for a water pump shaft processing lathe to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A quick material change structure for a water pump shaft processing lathe comprises a U-shaped frame, wherein two arms of the U-shaped frame are respectively located at the top ends inside the processing lathe, and a turning mechanism and a pulling mechanism are provided between the two arms of the U-shaped frame;

[0008] The turning mechanism includes a motor box, and the bottom surface of the motor box is fixedly connected to the bottom surface of the U-shaped frame. A stepper motor is arranged inside the motor box, and the motor shaft of the stepper motor is fixedly connected to a turntable. An electric push rod is fixedly connected to the center of the top surface of the turntable, and the movable end of the electric push rod is fixedly connected to a support plate, and a slot is opened in the center of the top surface of the support plate.

[0009] Furthermore, the inner wall of the slot is an arc-shaped surface.

[0010] Furthermore, the pulling mechanism includes a sliding rod, a sliding hole is provided on the top surface of the U-shaped frame, and the sliding rod is slidably sleeved inside the sliding hole, the bottom end of the sliding rod is fixedly connected to a U-shaped plate, and an arc-shaped plate is provided between the two arms of the U-shaped plate, the two ends of the arc-shaped plate are respectively fixedly connected to one end of the two arms of the U-shaped plate, and a rectangular through hole is provided on the top surface of the arc-shaped plate, and two rubber wheels are rotatably connected between the two opposite inner walls of the rectangular through hole.

[0011] Furthermore, a rectangular hole is provided on one side of the U-shaped frame, and a slide is slidably sleeved inside the rectangular hole, one end of the slide is rotatably connected to two support arms, and one end of each of the two support arms is rotatably connected to a guide rod, and one end of each of the two guide rods is provided with a clamping hole, and the outer side wall of the movable end of the electric push rod and the outer side wall of the sliding rod are fixedly sleeved with a clamping ring, and the two clamping rings are rotatably sleeved inside the two clamping holes respectively.

[0012] Furthermore, one side of the arc-shaped plate is fixedly connected to a driving motor, and the output end of the driving motor is fixedly connected to one end of the wheel shaft of the adjacent rubber wheel, the other ends of the wheel shafts of the two rubber wheels pass through one side of the rectangular through hole and are fixedly connected to a pulley, and a transmission belt is rotatably sleeved between the outer side walls of the two pulleys.

[0013] Furthermore, the top surface of the U-shaped frame is fixedly connected to a connecting tube, and the slide rod is slidably sleeved inside the connecting tube; one side of the U-shaped frame is fixedly connected to a connecting frame, and the slide plate is slidably sleeved inside the connecting frame.

[0014] Furthermore, the bottom ends of the two opposite sides of the U-shaped frame are fixedly connected with supporting frames, and the top surfaces of the two supporting frames are both inclined surfaces.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. Start the electric push rod through PLC control to drive the pallet to move up, so that the water pump shaft is stuck in the slot. At the same time, the electric push rod drives the adjacent guide rod to contact the adjacent support arm, driving the slide to move, so that the slide pulls the other guide rod and the slide rod downward, so that the two rubber wheels contact the water pump shaft. Then the drive motor starts automatically to drive the adjacent rubber wheels to rotate, and drives the two rubber wheels to rotate synchronously through the pulley and transmission belt, so that the two rubber wheels rub the water pump shaft to move, control the water pump shaft to be pulled out of the automatic chuck or inserted into the automatic chuck. After the water pump shaft is pulled out of the automatic chuck, start the stepper motor to drive the water pump shaft to change direction, and cooperate with the start of the drive motor to insert the processed end face of the water pump into the automatic chuck, so that the direction of the water pump shaft can be automatically changed.

[0017] 2. When any end face of the water pump shaft is processed, start the electric push rod so that the water pump shaft is supported by the support plate and abutted by the two rubber wheels. Then, start the drive motor to pull the water pump shaft out of the automatic chuck. Then, when the water pump shaft is driven by the stepper motor to turn the direction, start the drive motor to drive the processed end face of the water pump shaft to move toward the support plate, so that the iron filings that may be wrapped around the surface of the water pump shaft will abut against the support plate or curved plate and fall off naturally, avoiding iron filings wrapped around the water pump shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the positional relationship between the turning mechanism and the pulling mechanism in the utility model;

[0020] Figure 3 This is a schematic diagram of the transfer mechanism and slide structure of the utility model;

[0021] Figure 4 It is an exploded view of the pulling mechanism structure in the utility model.

[0022] In the figure: 100, U-shaped frame; 101, sliding hole; 110, supporting frame; 200, turning mechanism; 210, motor box; 211, turntable; 220, electric push rod; 230, supporting plate; 231, slot; 300, connecting frame; 310, slide plate; 320, supporting arm; 330, guide rod; 331, slot; 332, snap ring; 400, pulling mechanism; 410, sliding rod; 420, U-shaped plate; 430, curved plate; 431, rectangular through hole; 440, rubber wheel; 441, driving motor; 442, pulley; 443, transmission belt; 450, connecting cylinder. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 4 In an embodiment of the present invention, a rapid material change structure of a water pump shaft processing lathe includes a U-shaped frame 100, wherein two arms of the U-shaped frame 100 are respectively located at the top end inside the processing lathe, and a turning mechanism 200 and a pulling mechanism 400 are provided between the two arms of the U-shaped frame 100;

[0025] The turning mechanism 200 includes a motor box 210, and the bottom surface of the motor box 210 is fixedly connected to the inner bottom surface of the U-shaped frame 100. A stepper motor is arranged inside the motor box 210, and the motor shaft of the stepper motor is fixedly connected to a turntable 211. The center of the top surface of the turntable 211 is fixedly connected to an electric push rod 220, and the movable end of the electric push rod 220 is fixedly connected to a support plate 230. A card slot 231 is opened in the center of the top surface of the support plate 230.

[0026] Specifically, by placing the U-shaped frame 100 on the lathe, the support plate 230 is located below the water pump shaft, and the pulling mechanism 400 is located above the water pump shaft. Then, after the lathe has completed processing of one end face of the water pump shaft, the electric push rod 220 is started to move the support plate 230 upward, so that the support plate 230 can support the water pump shaft flatly, and the water pump shaft is naturally stuck in the slot 231. Then, the stepping motor is started to rotate, so that the electric push rod 220 drives the support plate 230 and the water pump shaft to turn the direction, so that the processed end face of the water pump shaft faces the chuck on the lathe, and then The automatic chuck of the lathe is then used to automatically clamp the processed end of the water pump shaft, and then the lathe is started to process the unprocessed end face of the water pump shaft. In actual use, the PLC can be used to control the opening and closing of the electric push rod 220 and the stepper motor, so that the electric push rod 220 and the stepper motor can automatically adjust the direction of the water pump shaft according to the PLC programming program, which is convenient for users to use, and can be used in conjunction with an existing industrial robot arm to enable the industrial robot arm to perform loading actions, and the change of the direction of the water pump shaft is performed by the turning mechanism 200.

[0027] Example 1

[0028] like Figure 2-3 As shown, in this embodiment, the inner wall of the slot 231 is an arc-shaped surface, the pulling mechanism 400 includes a slide rod 410, a slide hole 101 is provided on the top surface of the U-shaped frame 100, and the slide rod 410 is slidably sleeved inside the slide hole 101, the bottom end of the slide rod 410 is fixedly connected to the U-shaped plate 420, and an arc-shaped plate 430 is provided between the two arms of the U-shaped plate 420, the two ends of the arc-shaped plate 430 are respectively fixedly connected to one end of the two arms of the U-shaped plate 420, and a rectangular through hole 431 is provided on the top surface of the arc-shaped plate 430, and two rubber wheels 440 are rotatably connected between the two opposite inner side walls of the rectangular through hole 431.

[0029] In this embodiment, when one end surface of the water pump shaft is processed, the support plate 230 moves up to support the water pump shaft, and after the water pump shaft is naturally stuck in the groove 231, the two rubber wheels 440 on the arc plate 430 are made to contact the surface of the water pump shaft inside the groove 231 by sliding the slide bar 410 downward. Then, by rotating the rubber wheels 440, the water pump shaft can be pulled to move inside the groove 231 by utilizing the large friction between the rubber wheels 440 and the surface of the water pump shaft. The inner wall of the groove 231 is relatively smooth and has little friction with the surface of the water pump shaft, and the outer wall of the rubber wheel 440 can be made of abrasive material, which has a large friction with the surface of the water pump shaft, making it easier for the rubber wheel 440 to drive the water pump shaft to move and pull the unprocessed end of the water pump shaft out of the automatic chuck.

[0030] like Figure 3-4 As shown, in this embodiment, a rectangular hole is provided on one side of the U-shaped frame 100, and a slide plate 310 is slidably sleeved inside the rectangular hole, one end of the slide plate 310 is rotatably connected to two support arms 320, and one end of the two support arms 320 is rotatably connected to a guide rod 330, and one end of the two guide rods 330 is provided with a clamping hole 331, the outer side wall of the movable end of the electric push rod 220 and the outer side wall of the slide rod 410 are fixedly sleeved with a clamping ring 332, and the two clamping rings 332 are rotatably sleeved inside the two clamping holes 331 respectively, one side of the arc plate 430 is fixedly connected to a driving motor 441, and the output end of the driving motor 441 is fixedly connected to one end of the wheel shaft of the adjacent rubber wheel 440, the other ends of the wheel shafts of the two rubber wheels 440 pass through one side of the rectangular through hole 431 and are fixedly connected to a pulley 442, and a transmission belt 443 is rotatably sleeved between the outer side walls of the two pulleys 442.

[0031] When the water pump shaft is fully engaged, the guide rod 330 on the push rod 220 contacts the adjacent support arm 320 and drives the slide plate 310 to slide, thereby causing the slide plate 310 to pull the other support arm 320 and the guide rod 330 to drive the slide bar 410 downward, thereby causing the rubber wheel 440 to contact the water pump shaft in the slot 231. The adjacent rubber wheels 440 can be controlled to rotate by the drive motor 441, and the two rubber wheels 440 can be driven to rotate synchronously by the pulley 442 and the transmission belt 443. The drive motor 441 is electrically connected to the PLC so that the PLC can control the opening and closing of the drive motor 441 through the program. The control process of the PLC is as follows: when the water pump shaft is fully engaged, the guide rod 330 on the push rod 220 contacts the adjacent support arm 320 and drives the slide plate 310 to slide, thereby causing the slide plate 310 to pull the other support arm 320 and the guide rod 330 to drive the slide bar 410 downward, thereby causing the rubber wheel 440 to contact the water pump shaft in the slot 231. After one end face is processed, the electric push rod 220 is started to drive the support plate 230 to move upward, so that the water pump shaft is naturally stuck in the groove 231, and then the drive motor 441 is started to drive the water pump shaft to move, and the water pump shaft is driven by the rubber wheel 440 to move and naturally pulled out of the automatic chuck, and then the stepping motor is started to drive the water pump shaft and the support plate 230 to reverse the direction. During the rotation of the stepping motor, the drive motor 441 is started to drive the water pump shaft to move, so that the processed end face of the water pump shaft moves toward the curved plate 430, so that the iron filings that may be wrapped on the water pump shaft naturally fall off the surface of the water pump shaft due to the conflict with the curved plate 430 and the support plate 230. After the water pump shaft has completed the direction change, the drive motor 441 is started to drive the processed end face of the water pump shaft to insert into the automatic chuck, and then the automatic chuck automatically locks the water pump shaft, and then the electric push rod 220 is started to reset, so that the support plate 230 and the curved plate 430 are separated from the water pump shaft.

[0032] Example 2

[0033] On the basis of the first embodiment, a supporting frame 110 is provided to receive the water pump shaft.

[0034] like Figure 3-4 As shown, in this embodiment, a connecting tube 450 is fixedly connected to the top surface of the U-shaped frame 100, and the slide rod 410 is slidably sleeved inside the connecting tube 450. A connecting frame 300 is fixedly connected to one side of the U-shaped frame 100, and the slide plate 310 is slidably sleeved inside the connecting frame 300. The bottom ends of the opposite sides of the U-shaped frame 100 are fixedly connected to support frames 110, and the top surfaces of the two support frames 110 are both inclined surfaces.

[0035] During specific implementation, the limit of the connecting frame 300 and the connecting cylinder 450 is used to make the slide plate 310 and the slide rod 410 move more smoothly. After the processing of both ends of the water pump shaft is completed, the electric push rod 220 can be started again through PLC control to move up, so that the water pump shaft is clamped into the clamping groove 231, and then the drive motor 441 is started to pull the water pump shaft out of the automatic chuck, and then the stepper motor is started to reverse, so that the water pump shaft is reversed to restore its original direction, so as to avoid the line on the electric push rod 220 being wrapped around the electric push rod 220. When the water pump shaft is reversed, the drive motor 441 is started to drive the rubber wheel 440 to rotate, so that the end surface of the water pump shaft that has just been processed is clamped by the rubber wheel. The wheel 440 drives the support plate 230 to move, so that the iron filings that may be wrapped around the water pump shaft are detached from the water pump shaft due to the friction between the support plate 230 and the curved plate 430, thereby avoiding the iron filings being wrapped around the water pump shaft. Then the electric push rod 220 is started to reset, so that the water pump shaft on the support plate 230 naturally falls on the top surfaces of the two support frames 110 and is supported by the support frames 110. As the electric push rod 220 is completely reset, the support plate 230 will be detached from the water pump shaft, so that the water pump shaft naturally slides along the top surfaces of the two support frames 110 and contacts the U-shaped frame 100 for storage. The user can manually take out the water pump shaft that has been processed and supported on the two support frames 110 for processing in other steps.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0037] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A quick material change structure for a water pump shaft processing lathe, comprising a U-shaped frame (100), characterized in that: The two arms of the U-shaped frame (100) are respectively located at the top end of the inner portion of the processing lathe, and a turning mechanism (200) and a pulling mechanism (400) are provided between the two arms of the U-shaped frame (100); The turning mechanism (200) comprises a motor box (210), and the bottom surface of the motor box (210) is fixedly connected to the inner bottom surface of the U-shaped frame (100); a stepper motor is arranged inside the motor box (210), and the motor shaft of the stepper motor is fixedly connected to a turntable (211); an electric push rod (220) is fixedly connected to the center of the top surface of the turntable (211); and the movable end of the electric push rod (220) is fixedly connected to a supporting plate (230); and a card slot (231) is provided at the center of the top surface of the supporting plate (230).

2. The rapid material change structure of a water pump shaft processing lathe according to claim 1 is characterized in that: The inner wall of the clamping groove (231) is an arc-shaped surface.

3. The rapid material change structure of a water pump shaft processing lathe according to claim 2, characterized in that: The pulling mechanism (400) includes a sliding rod (410), a sliding hole (101) is provided on the top surface of the U-shaped frame (100), and the sliding rod (410) is slidably sleeved inside the sliding hole (101), the bottom end of the sliding rod (410) is fixedly connected to the U-shaped plate (420), and an arc-shaped plate (430) is provided between the two arms of the U-shaped plate (420), the two ends of the arc-shaped plate (430) are respectively fixedly connected to one end of the two arms of the U-shaped plate (420), and a rectangular through hole (431) is provided on the top surface of the arc-shaped plate (430), and two rubber wheels (440) are rotatably connected between the two opposite inner side walls of the rectangular through hole (431).

4. The rapid material change structure of a water pump shaft processing lathe according to claim 3 is characterized in that: A rectangular hole is provided on one side of the U-shaped frame (100), and a slide plate (310) is slidably sleeved inside the rectangular hole. One end of the slide plate (310) is rotatably connected to two support arms (320), and one end of each of the two support arms (320) is rotatably connected to a guide rod (330). One end of each of the two guide rods (330) is provided with a clamping hole (331). The outer side wall of the movable end of the electric push rod (220) and the outer side wall of the sliding rod (410) are fixedly sleeved with a clamping ring (332), and the two clamping rings (332) are rotatably sleeved inside the two clamping holes (331) respectively.

5. The rapid material change structure of a water pump shaft processing lathe according to claim 4, characterized in that: One side of the arc-shaped plate (430) is fixedly connected to a driving motor (441), and the output end of the driving motor (441) is fixedly connected to one end of the wheel shaft of the adjacent rubber wheel (440), and the other ends of the wheel shafts of the two rubber wheels (440) pass through one side of the rectangular through hole (431) and are fixedly connected to a pulley (442), and a transmission belt (443) is rotatably sleeved between the outer side walls of the two pulleys (442).

6. The rapid material change structure of a water pump shaft processing lathe according to claim 5, characterized in that: The top surface of the U-shaped frame (100) is fixedly connected to a connecting tube (450), and the sliding rod (410) is slidably sleeved inside the connecting tube (450). One side of the U-shaped frame (100) is fixedly connected to a connecting frame (300), and the sliding plate (310) is slidably sleeved inside the connecting frame (300).

7. The rapid material change structure of a water pump shaft processing lathe according to claim 6, characterized in that: The bottom ends of the two opposite sides of the U-shaped frame (100) are fixedly connected to support frames (110), and the top surfaces of the two support frames (110) are both inclined surfaces.

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