A pump shaft keyway milling device

Abstract

The utility model relates to pump shaft processing technical field, concretely is a kind of pump shaft keyway milling device, including milling machine, the worktable surface of milling machine is fixed with rotary table, the top rotation of rotary table is installed with carousel, the inside fixed mounting of rotary table is with the driving element for driving carousel rotation, the top of carousel is equipped with two clamping seat for the pump shaft of position placement symmetrically;By setting carousel, clamping assembly, control assembly and stroke component, adopt double-station carousel design, realize processing and charging parallel operation, significantly reduce equipment idle time, improve overall production speed, simultaneously, in the alternate operation process, carousel rotation touch stroke ring, ball and top rod etc. Linkage of mechanism, push the automatic centripetal clamping pump shaft of clamping plate, spring reset driving clamping plate is automatically loosened, full course does not need manual intervention, not only simplifies the loading and unloading process, but also can avoid the artificial error of positioning calibration and locking step, ensure the consistency of clamping accuracy.

Description

Technical Field

[0001] This utility model relates to the field of pump shaft machining technology, and in particular to a pump shaft keyway milling device. Background Technology

[0002] As the core component of a water pump, the pump shaft plays a crucial role in supporting the impeller and transmitting torque. Its performance directly determines the pump's operational stability and service life. In the pump shaft machining process, milling the keyway is a critical step. Special tooling is needed to precisely fix the pump shaft on a milling machine, and the keyway structure that connects to the impeller is formed through milling.

[0003] The horizontal shaft keyway milling fixture disclosed in Chinese Patent Publication No. CN221088109U can axially limit the horizontal shaft to ensure that the horizontal shaft does not deviate during the processing. However, according to the horizontal shaft keyway milling fixture provided by related technologies and existing technologies, traditional pump shaft keyway milling devices usually use tooling to fasten the pump shaft to the worktable, and then control the milling cutter to complete the keyway cutting. After the processing is completed, the workpiece needs to be unloaded for the next round of clamping. This repetitive loading and unloading process not only consumes a lot of time and directly restricts the improvement of processing efficiency, but also the positioning calibration of the pump shaft and the clamping operation are complicated and easily cause fluctuations in clamping accuracy due to differences in manual operation, which further affects the consistency and stability of keyway processing. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a pump shaft keyway milling device.

[0005] The purpose of this utility model is achieved through the following technical solution: a pump shaft keyway milling device, including a milling machine, a turntable fixedly provided on the worktable of the milling machine, a turntable rotatably mounted on the top of the turntable, a driving component for driving the turntable to rotate fixedly installed inside the turntable, two clamps for limiting and placing the pump shaft symmetrically provided on the top of the turntable, a positioning plate fixedly provided at the tail end of each clamp, two clamping components for centering and pressing the pump shaft symmetrically provided on each clamp, a control component for controlling the clamping state of the corresponding clamping component provided at the bottom of each clamp, and a stroke component for changing the state of the control component as the turntable rotates on the top of the turntable.

[0006] Preferably, the clamping assembly includes a push plate that is vertically slidably mounted on the bottom of the clamping seat. A spring is fixedly provided on the top of the push plate. Push rods are hinged to both sides of the push plate near the clamping seat. A clamping plate is hinged to the top of each push rod. A rotating shaft is fixedly provided in the middle of each clamping plate. The rotating shaft is rotatably connected to the clamping seat.

[0007] Preferably, the control component includes a drive plate that is vertically slidably mounted on the bottom of the clamp, a top rod is fixedly provided on the bottom of the drive plate, and a ball bearing is installed on the bottom of the top rod.

[0008] Preferably, the stroke assembly includes a stroke ring fixed to the outside of the turntable, and the upper surface of the stroke ring has a groove.

[0009] Preferably, the two ends of the drive plate are fixedly connected to the two corresponding push plates.

[0010] Preferably, the push rod extends downward through the turntable, and the push rod is slidably connected to the turntable.

[0011] Preferably, the ball abuts against the upper surface of the stroke ring, and the groove is arc-shaped and corresponds to the ball located in the idle position.

[0012] Preferably, the clamping seat has an installation groove corresponding to the position of each clamping plate.

[0013] Beneficial effects:

[0014] This pump shaft keyway milling device, through the setting of a turntable, clamping assembly, control assembly, and stroke assembly, adopts a dual-station turntable design to realize parallel operation of processing and loading, significantly reducing equipment downtime and improving overall production speed. At the same time, during the alternating operation, the rotation of the turntable triggers the linkage of the stroke ring, ball bearings, and push rod mechanisms, pushing the clamping plate to automatically clamp the pump shaft in a centripetal manner. After processing, the ball bearings fall into the groove, and the spring reset drives the clamping plate to automatically release. No manual intervention is required throughout the process, which not only simplifies the loading and unloading process, but also avoids human error in positioning calibration and locking steps, ensuring consistent clamping accuracy. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the groove structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the stroke assembly of this utility model;

[0019] Figure 4This is a schematic diagram of the clamping assembly of this utility model;

[0020] Figure 5 This utility model Figure 4 Enlarged schematic diagram of the local structure at point A;

[0021] Figure 6 This utility model Figure 4 Enlarged schematic diagram of the local structure at point B;

[0022] Figure 7 This is a schematic diagram of the structure of the control component of this utility model.

[0023] In the diagram: 1. Milling machine; 2. Rotary table; 3. Turntable; 4. Clamping seat; 5. Clamping assembly; 51. Push plate; 52. Push rod; 53. Clamping plate; 54. Spring; 55. Rotary shaft; 6. Control assembly; 61. Drive plate; 62. Push rod; 63. Ball bearing; 7. Stroke assembly; 71. Stroke ring; 72. Groove; 8. Mounting slot; 9. Drive component; 10. Positioning plate. Detailed Implementation

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, and in part will be obvious from the description or may be learned by practice of the invention.

[0026] like Figures 1 to 7As shown, a pump shaft keyway milling device includes a milling machine 1. A turntable 2 is fixedly mounted on the worktable of the milling machine 1. A turntable 3 is rotatably mounted on the top of the turntable 2. A driving component 9 for driving the turntable 3 to rotate is fixedly mounted inside the turntable 2. Two clamping seats 4 for limiting and placing the pump shaft are symmetrically arranged on the top of the turntable 3 (the front is an idle position, and the rear is a machining position). A positioning plate 10 is fixedly arranged at the tail end of each clamping seat 4 (the end away from the keyway machining position). Two clamping components 5 for centering and pressing the pump shaft are symmetrically arranged on each clamping seat 4. A control component 6 for controlling the clamping state of the corresponding clamping component 5 is arranged at the bottom of each clamping seat 4. A stroke component 7 for changing the state of the control component 6 as the turntable 3 rotates is arranged on the top of the turntable 2. In use, the pump shaft to be processed is first placed on the clamping seat 4 in the idle position, so that one end is axially pressed against the positioning plate 10 to complete the initial positioning. Then, the driving component 9 drives the turntable 3 to smoothly rotate under the support of the turntable 2. During the rotation, the stroke component 7 controls the clamping component 5 to automatically center and clamp the pump shaft through the control component 6. When the pump shaft rotates with the turntable 3 to the processing station, the milling machine 1 starts keyway milling according to the preset program. At the same time, the operator can place a new pump shaft to be processed on the clamping seat 4 in the empty station in front, realizing the parallel processing and loading processes. After the current pump shaft is processed, the turntable 3 continues to rotate 180 degrees, turning the processed pump shaft to the empty station, and the clamping seat 4 where the new pump shaft is located simultaneously turns to the processing station and automatically completes the clamping. When the processed pump shaft rotates to the empty station, the corresponding clamping component 5 resets and automatically releases the clamping of the processed pump shaft. The operator can quickly remove the finished product. The whole process realizes the automatic clamping and releasing of the pump shaft through mechanical linkage. The dual-station alternating operation effectively eliminates the waiting time of repeated loading and unloading in the traditional single-station, significantly improves processing efficiency, simplifies the loading and unloading process, facilitates the loading and unloading of pump shafts, and reduces labor intensity.

[0027] like Figures 4 to 7 As shown, the clamping assembly 5 includes a push plate 51 vertically slidably mounted on the bottom of the clamping seat 4. A spring 54 is fixedly mounted on the top of the push plate 51. Push rods 52 are hinged to both sides of the push plate 51 near the clamping seat 4. A clamping plate 53 is hinged to the top of each push rod 52. A rotating shaft 55 is fixedly mounted in the middle of each clamping plate 53. The rotating shaft 55 is rotatably connected to the clamping seat 4. The clamping seat 4 has a mounting groove 8 corresponding to the position of each clamping plate 53. When the push plate 51 is pushed upward, it compresses the spring 54 and drives the clamping plate 53 to rotate inward around the central rotating shaft 55 through the push rod 52. This causes the tops of the two symmetrically distributed clamping plates 53 to converge towards the center, forming a four-point positioning clamping structure with the clamping seat 4, thereby achieving the centering and stable clamping of the pump shaft.

[0028] like Figure 3 and Figure 7As shown, the control component 6 includes a drive plate 61 that is vertically slidably mounted on the bottom of the clamp 4. A push rod 62 is fixedly provided on the bottom of the drive plate 61, and a ball bearing 63 is installed on the bottom of the push rod 62. The two ends of the drive plate 61 are respectively fixedly connected to two corresponding push plates 51. The push rod 62 passes downward through the turntable 3 and is slidably connected to the turntable 3. During the rotation of the turntable 3, the ball bearing 63 rolls along the surface of the stroke component 7 and pushes the drive plate 61 upward. The drive plate 61 synchronously drives the push plates 51 at both ends to compress the springs 54 and move upward. The push plates 51 drive the clamping plates 53 to rotate inward around the central pivot 55 through the push rod 52, so that the tops of the two symmetrically distributed clamping plates 53 automatically press the pump shaft inward without manual intervention.

[0029] like Figures 2 to 7 As shown, the stroke assembly 7 includes a stroke ring 71 fixed to the outside of the turntable 2. A groove 72 is formed on the upper surface of the stroke ring 71, and a ball bearing 63 abuts against the upper surface of the stroke ring 71. The groove 72 is arc-shaped and corresponds to the ball bearing 63 located in the idle position. The pump shaft to be processed is placed on the clamp 4 in the idle position. Subsequently, the drive unit 9 drives the turntable 3 to rotate. During this process, the ball bearing 63 rolls along the surface of the stroke ring 71 and gradually disengages from the groove 72. The upper surface of the stroke ring 71 applies an upward supporting force to the push rod 62 through the ball bearing 63, thereby pushing the drive rod... The moving plate 61 moves upward to automatically clamp the pump shaft. After the current pump shaft is processed, the turntable 3 continues to rotate 180 degrees to move the processed pump shaft to an idle position. The bottom ball 63 falls back into the groove 72 on the stroke ring 71, the drive plate 61 loses support, and the spring 54 pushes the push plate 51 downward by the restoring force. The push rod 52 pulls the clamping plate 53 to rotate outward and open, automatically releasing the clamping of the pump shaft. The whole process realizes the automatic clamping and releasing of the pump shaft through mechanical linkage, avoiding human operation errors, simplifying the loading and unloading process, and reducing labor intensity.

[0030] The work process is as follows:

[0031] S1: As Figure 1 As shown, when using it, first place the pump shaft to be processed on the clamp 4 in the idle station, and make one end of it axially press against the positioning plate 10 to complete the initial positioning.

[0032] S2: As Figures 3 to 6 As shown, the drive unit 9 then drives the turntable 3 to rotate smoothly under the support of the turntable 2. During this process, the ball 63 rolls along the surface of the stroke ring 71 and gradually disengages from the groove 72. The upper surface of the stroke ring 71 applies an upward supporting force to the push rod 62 through the ball 63, thereby pushing the drive plate 61 to move upward. The drive plate 61 simultaneously drives the push plates 51 at both ends to compress the spring 54 and move upward.

[0033] S3: As Figure 5 and Figure 6As shown, the push plate 51 drives the clamping plate 53 to rotate inward around the central pivot 55 via the push rod 52, so that the tops of the two symmetrically distributed clamping plates 53 converge towards the center, forming a four-point positioning clamping structure with the clamping seat 4, thereby realizing automatic centering and stable clamping of the pump shaft.

[0034] S4: As Figure 1 As shown, when the pump shaft rotates with the turntable 3 to the machining station, the milling machine 1 starts the keyway milling process according to the preset program. At the same time, the operator can place a new pump shaft to be processed on the clamp 4 in the empty station in front, so as to realize the parallel processing and loading processes.

[0035] S5: As Figure 3 As shown, after the current pump shaft is processed, the turntable 3 continues to rotate 180 degrees, moving the processed pump shaft to an idle position, while the clamping seat 4 where the new pump shaft is located simultaneously rotates to the processing position and automatically completes clamping (the clamping action is triggered by the non-groove area of ​​the stroke ring 71).

[0036] S6: As Figures 3 to 6 As shown, when the processed pump shaft rotates to the idle position, its bottom ball 63 falls back into the groove 72 on the stroke ring 71, the drive plate 61 loses support, the spring 54 pushes the push plate 51 down by restoring force, and pulls the clamping plate 53 outward to open through the push rod 52, automatically releasing the clamping of the pump shaft, and the operator can quickly remove the finished product;

[0037] S7: As Figures 1 to 7 As shown, the entire process achieves automatic clamping and loosening of the pump shaft through mechanical linkage. The alternating operation of the dual workstations effectively eliminates the waiting time of repeated loading and unloading in the traditional single workstation, significantly improving processing efficiency. The centering clamping structure ensures the positioning accuracy of the pump shaft, avoids human operation errors, and simplifies the loading and unloading process, reducing labor intensity.

[0038] The milling machine 1 and the drive unit 9 in this application are known technologies in this field, therefore their specific structures and working principles are not described in detail.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A pump shaft keyway milling device, characterized in that: The milling machine (1) includes a turntable (2) fixedly mounted on the worktable surface of the milling machine (1). A turntable (3) is rotatably mounted on the top of the turntable (2). A drive component (9) for driving the turntable (3) to rotate is fixedly mounted inside the turntable (2). Two clamps (4) for limiting and placing the pump shaft are symmetrically provided on the top of the turntable (3). A positioning plate (10) is fixedly provided at the tail end of each clamp (4). Two clamping components (5) for centering and pressing the pump shaft are symmetrically provided on each clamp (4). A control component (6) for controlling the clamping state of the corresponding clamping component (5) is provided at the bottom of each clamp (4). A stroke component (7) for changing the state of the control component (6) as the turntable (3) rotates is provided on the top of the turntable (2).

2. The pump shaft keyway milling device according to claim 1, characterized in that: The clamping assembly (5) includes a push plate (51) vertically slidably mounted on the bottom of the clamp (4). A spring (54) is fixedly provided on the top of the push plate (51). Push rods (52) are hinged to both sides of the push plate (51) near the clamp (4). A clamping plate (53) is hinged to the top of each push rod (52). A rotating shaft (55) is fixedly provided in the middle of each clamping plate (53). The rotating shaft (55) is rotatably connected to the clamp (4).

3. The pump shaft keyway milling device according to claim 2, characterized in that: The control component (6) includes a drive plate (61) that is vertically slidably mounted on the bottom of the clamp (4). A top rod (62) is fixedly provided on the bottom of the drive plate (61), and a ball bearing (63) is installed on the bottom of the top rod (62).

4. The pump shaft keyway milling device according to claim 3, characterized in that: The stroke assembly (7) includes a stroke ring (71) fixed to the outside of the turntable (2), and the upper surface of the stroke ring (71) is provided with a groove (72).

5. The pump shaft keyway milling device according to claim 3, characterized in that: The two ends of the drive plate (61) are respectively fixedly connected to the two corresponding push plates (51).

6. The pump shaft keyway milling device according to claim 3, characterized in that: The top rod (62) extends downward through the turntable (3), and the top rod (62) is slidably connected to the turntable (3).

7. The pump shaft keyway milling device according to claim 4, characterized in that: The ball (63) abuts against the upper surface of the stroke ring (71), and the groove (72) is arc-shaped and corresponds to the ball (63) located in the idle position.

8. A pump shaft keyway milling device according to claim 2, characterized in that: The clamp (4) has an installation groove (8) corresponding to the position of each clamp plate (53).

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