Buffer adjusting type cam divider

Abstract

The utility model relates to the technical field of cam indexers, in particular to a buffer adjusting type cam indexer which can conduct torsion buffering on a cam assembly, an output shaft and an installation disc of a indexer body, reduce impact force on the output shaft and improve reliability. Comprising a divider body, an input shaft, an output shaft and a mounting disc, the input shaft is connected with the input end of the divider body, the output shaft is connected with the output end of the divider body, and the mounting disc is concentrically mounted at the top end of the output shaft; the cutter further comprises a buffer disc, a plurality of vertical rods, a plurality of connecting bases and a plurality of springs, the buffer disc is rotationally installed on the cutter body, the buffer disc and the output shaft are concentrically arranged, the buffer disc and the input shaft are in transmission connection through a transmission assembly, the lower ends of the vertical rods are circumferentially and evenly installed on the buffer disc, and the connecting bases are rotationally installed on the vertical rods respectively. The outer ends of the multiple springs are connected with the multiple connecting bases correspondingly, the inner ends of the multiple springs are connected with the mounting disc, and the multiple springs are evenly arranged in the circumferential direction.

Description

Technical Field

[0001] This utility model relates to the technical field of cam dividers, and in particular to a buffer-adjustable cam divider. Background Technology

[0002] A cam indexer, also known as a cam divider or intermittent divider in engineering, is a high-precision rotary device. In today's demanding automation environment, cam indexers are particularly important. To reduce wear on cam dividers, various buffer-adjustable cam dividers have been disclosed in the prior art. For example, Chinese Utility Model Patent CN210799936U discloses a buffer-adjustable cam divider, which includes a cam divider body. The output shaft of the cam divider body is fixedly connected to a telescopic connecting shaft. Both sides of the upper end of the cam divider body are provided with slide grooves, and an adjustment mechanism is provided in the slide grooves. The adjustment mechanism is connected to support rods, and the upper ends of the two support rods are rotatably connected to annular slide rails. An annular placement plate is provided above the annular slide rails, and the annular placement plate is provided with multiple mounting holes. The lower end of the annular placement plate is provided with an annular groove corresponding to the annular slide rails, and a sliding mechanism is provided in the annular grooves. Both sides of the cam divider body are provided with slots, and the slots are provided with limiting mechanisms connected to the adjustment mechanism. This provides certain support and buffer for heavier instruments, avoids excessive stress on the output turret, and allows adjustment of the instrument height as needed.

[0003] However, the spring in the aforementioned cam divider only provides vertical buffering and does not buffer the torsion of the output shaft. In actual operation, the vertical shaft mainly outputs torque, and the output shaft rotates at a certain angle intermittently. When starting, the torque suddenly increases, which has a greater impact on the output shaft and can easily cause damage. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a buffer-adjustable cam divider that can provide torsional buffering for the cam assembly, output shaft and mounting plate of the divider body, reduce the impact force on the output shaft and improve reliability.

[0005] This utility model discloses a buffer-adjustable cam divider, comprising a divider body, an input shaft, an output shaft, and a mounting plate. A cam assembly is internally housed within the divider body. The input shaft is rotatably mounted on the side wall of the divider body and is driven by the input end of the cam assembly. The output shaft is rotatably mounted on the divider body and is driven by the output end of the cam assembly. The mounting plate is concentrically mounted on the top of the output shaft. The device also includes a buffer plate, multiple vertical rods, multiple connecting seats, and multiple springs. The buffer plate is rotatably mounted on the divider body and is concentrically arranged with the output shaft. The buffer plate is driven by the input shaft via a transmission assembly. The lower ends of the multiple vertical rods are evenly circumferentially mounted on the buffer plate. The multiple connecting seats are rotatably mounted on the multiple vertical rods. The outer ends of the multiple springs are connected to the multiple connecting seats, and the inner ends of the multiple springs are connected to the mounting plate. The multiple springs are evenly circumferentially arranged. During operation, the input end of an external mechanism is driven by the mounting plate, and an external drive mechanism drives the input shaft to rotate at a constant speed, which in turn drives the divider. The cam assembly inside the main body drives the output shaft and mounting plate to rotate intermittently at a fixed angle, causing the mounting plate to drive the external machinery to move intermittently. During this process, the input shaft continuously drives the buffer plate to rotate at a uniform speed through the transmission assembly, making the time for one rotation of the buffer plate the same as the time for one rotation of the mounting plate. At this time, the mounting plate rotates faster than the buffer plate. When the mounting plate pauses, the buffer plate drives multiple vertical rods and multiple connecting seats to stretch and store multiple springs. When the mounting plate starts, the tension of multiple springs provides attachment and torsional buffering for the mounting plate, thereby reducing the impact force on the output shaft during startup. When the mounting plate is about to stop, multiple springs begin to compress and store force, so that when the mounting plate stops, the elastic force of multiple springs provides reverse buffering for the mounting plate and output shaft, reducing the inertial torsional impact on the mounting plate and output shaft when they suddenly stop. This achieves torsional buffering of the cam assembly, output shaft, and mounting plate of the divider body, reducing the impact force on the output shaft, reducing damage, and improving reliability.

[0006] Preferably, it also includes a bearing turntable, which is mounted on the main body of the divider and is arranged concentrically with the output shaft. A buffer disc is mounted on the rotating end of the bearing turntable. The buffer disc is mounted on the main body of the divider by rotating the bearing turntable, so that the buffer disc rotates smoothly and stably.

[0007] Preferably, the transmission assembly includes a driving gear, a driven gear, a bevel gear, and a bevel gear ring. The driving gear is concentrically mounted on the input shaft, and the driven gear is rotatably mounted on the side wall of the divider body via a rotating shaft. The driven gear meshes with the driving gear. The bevel gear is concentrically mounted on the rotating shaft of the driven gear, and the bevel gear ring is concentrically mounted on the buffer disk, meshing with the bevel gear. When the input shaft rotates, it drives the driving gear to rotate. The driving gear meshes with the driven gear, driving the bevel gear to rotate. The bevel gear meshes with the bevel gear ring, driving the buffer disk to rotate, thus achieving uniform speed drive of the buffer disk.

[0008] Preferably, it also includes an internal gear ring and a sensor. The internal gear ring is concentrically mounted on the buffer disk, and the sensor is mounted on the main body of the divider, with the sensor probe facing the internal gear ring. When the buffer disk rotates, it drives the internal gear ring to rotate. When each tooth of the internal gear ring passes the probe of the sensor, the sensor generates an electrical signal. The rotation of the buffer disk is monitored by the time interval between generating the electrical signals.

[0009] Preferably, the output shaft includes an inner shaft and an outer shaft tube. The lower end of the inner shaft is connected to the output end of the cam assembly of the divider body. A spline is provided on the outer wall of the inner shaft. The outer shaft tube is slidably fitted on the inner shaft. A spline groove matching the spline of the inner shaft is provided on the inner wall of the outer shaft tube. The mounting plate is concentrically mounted on the outer shaft tube. The spline pair between the inner shaft and the outer shaft tube realizes the transmission connection between the inner shaft and the outer shaft tube. The outer shaft tube slides and rises along the inner shaft to adjust the height of the mounting plate to adapt to different external mechanical objects.

[0010] Preferably, the assembly also includes a screw, a slider, an arc-shaped slide rail, and a nut. The lower end of the screw is mounted on a buffer plate, the slider is slidably mounted on the screw, the arc-shaped slide rail is mounted on a mounting plate, and the slider is slidably mounted on the arc-shaped slide rail. The nut is screwed onto the screw, locking the slider in place. By rotating the nut, the slider is loosened, and its height can be adjusted along the screw. The slider drives the mounting plate to rise and fall via the arc-shaped slide rail. After adjusting the height of the mounting plate, the nut is tightened to lock the slider's position, thus achieving height adjustment of the mounting plate. When the mounting plate and the buffer plate rotate relative to each other, the slider slides along the arc-shaped slide rail, providing good practicality.

[0011] Preferably, it also includes a level, which is mounted on the mounting plate; by installing the level, it is convenient to adjust the level of the mounting plate when adjusting the mounting plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: During operation, the input end of the external machinery is connected to the mounting plate via transmission. The external drive mechanism drives the input shaft to rotate at a constant speed. The input shaft drives the cam assembly inside the divider body. The cam assembly drives the output shaft and the mounting plate to rotate intermittently at a fixed angle, causing the mounting plate to drive the external machinery to move intermittently. During this process, the input shaft continuously drives the buffer plate to rotate at a constant speed through the transmission assembly, making the time for the buffer plate to rotate one revolution the same as the time for the mounting plate to rotate one revolution. At this time, the mounting plate rotates faster than the buffer plate. When the mounting plate stops... When the mounting plate starts, the buffer plate drives multiple vertical rods and multiple connecting seats to stretch and store multiple springs. When the mounting plate starts, the tension of multiple springs provides attachment and torsional buffering to the mounting plate, thereby reducing the impact force on the output shaft during startup. When the mounting plate is about to stop, multiple springs begin to compress and store force, so that when the mounting plate stops, the elastic force of multiple springs provides reverse buffering to the mounting plate and output shaft, reducing the inertial torsional impact on the mounting plate and output shaft when they suddenly stop. This achieves torsional buffering of the cam assembly, output shaft and mounting plate of the divider body, reducing the impact force on the output shaft, reducing the damage caused and improving reliability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the isometric structure of this utility model;

[0015] Figure 3 This is a front sectional view of the present invention;

[0016] Figure 4 This is a structural diagram of the divider body, input shaft, and output shaft, etc.

[0017] Figure 5 It is a structural diagram of components such as the buffer disk, transmission assembly, screw, and slider;

[0018] Figure 6 It is a structural diagram of the mounting plate, vertical rod, connecting seat and spring, etc.

[0019] The following are labels in the attached diagram: 1. Divider body; 2. Input shaft; 3. Output shaft; 4. Mounting plate; 5. Buffer plate; 6. Vertical rod; 7. Connecting seat; 8. Spring; 9. Bearing turntable; 10. Driving gear; 11. Driven gear; 12. Bevel gear; 13. Bevel gear ring; 14. Internal gear ring; 15. Sensor; 16. Inner shaft; 17. Outer shaft tube; 18. Screw; 19. Slider; 20. Arc-shaped slide rail; 21. Nut; 22. Level. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0021] like Figures 4 to 6 As shown, a buffer-adjustable cam divider includes a divider body 1, an input shaft 2, an output shaft 3, and a mounting plate 4. A cam assembly is installed inside the divider body 1. The input shaft 2 is rotatably mounted on the side wall of the divider body 1 and is drivenly connected to the input end of the cam assembly. The output shaft 3 is rotatably mounted on the divider body 1 and is drivenly connected to the output end of the cam assembly. The mounting plate 4 is concentrically mounted on the top of the output shaft 3. The divider also includes a buffer plate 5, multiple vertical rods 6, multiple connecting seats 7, and multiple springs 8. The buffer plate 5 is rotatably mounted on the divider body 1 and is concentrically arranged with the output shaft 3. The buffer plate 5 is drivenly connected to the input shaft 2 via a transmission assembly. The lower circumferences of the multiple vertical rods 6 are evenly mounted on the buffer plate 5. The multiple connecting seats 7 are rotatably mounted on... On multiple vertical rods 6, the outer ends of multiple springs 8 are respectively connected to multiple connecting seats 7, and the inner ends of multiple springs 8 are connected to mounting plates 4. The multiple springs 8 are evenly arranged circumferentially. It also includes a bearing turntable 9, which is mounted on the divider body 1. The bearing turntable 9 is arranged concentrically with the output shaft 3. The buffer plate 5 is mounted on the rotating end of the bearing turntable 9. The transmission assembly includes a driving gear 10, a driven gear 11, a bevel gear 12 and a bevel gear ring 13. The driving gear 10 is concentrically mounted on the input shaft 2. The driven gear 11 is rotatably mounted on the side wall of the divider body 1 through a rotating shaft. The driven gear 11 meshes with the driving gear 10. The bevel gear 12 is concentrically mounted on the rotating shaft of the driven gear 11. The bevel gear ring 13 is concentrically mounted on the buffer plate 5 and meshes with the bevel gear 12.

[0022] During operation, the input end of the external machinery is connected to the mounting plate 4 via a transmission. The external drive mechanism drives the input shaft 2 to rotate at a constant speed. The input shaft 2 drives the cam assembly inside the divider body 1. The cam assembly drives the output shaft 3 and the mounting plate 4 to rotate intermittently at a fixed angle, causing the mounting plate 4 to drive the external machinery to move intermittently. During this process, the rotation of the input shaft 2 drives the drive gear 10 to rotate. The drive gear 10 meshes with the driven gear 11 to drive the bevel gear 12 to rotate. The bevel gear 12 meshes with the bevel gear ring 13 to rotate. The bevel gear ring 13 drives the buffer plate 5 to rotate at a constant speed. The buffer plate 5 is rotatably mounted on the divider body 1 via the bearing turntable 9, making the rotation of the buffer plate 5 smooth and stable, and ensuring that the time for one rotation of the buffer plate 5 is the same as the time for one rotation of the mounting plate 4. Similarly, when the mounting plate 4 is rotating, it rotates faster than the buffer plate 5. When the mounting plate 4 is paused, the buffer plate 5 drives multiple vertical rods 6 and multiple connecting seats 7 to stretch and store the force of multiple springs 8. When the mounting plate 4 starts, the tension of multiple springs 8 applies to the mounting plate 4 for attachment and torsional buffering, thereby reducing the impact force on the output shaft 3 when it starts. When the mounting plate 4 is about to stop, multiple springs 8 begin to compress and store force, so that when the mounting plate 4 stops, the elastic force of multiple springs 8 applies to the mounting plate 4 and the output shaft 3 for reverse buffering, reducing the inertial torsional impact on the mounting plate 4 and the output shaft 3 when they suddenly stop. This achieves torsional buffering of the cam assembly, output shaft 3 and mounting plate 4 of the divider body 1, reduces the impact force on the output shaft, reduces the damage caused, and improves reliability.

[0023] It also includes an internal gear ring 14 and a sensor 15. The internal gear ring 14 is concentrically mounted on the buffer disk 5, and the sensor 15 is mounted on the divider body 1. The probe of the sensor 15 faces the internal gear ring 14. When the buffer disk 5 rotates, it drives the internal gear ring 14 to rotate. When each tooth of the internal gear ring 14 passes the probe of the sensor 15, the sensor 15 generates an electrical signal. The rotation of the buffer disk 5 is monitored by the time interval between generating the electrical signals. Example 2

[0024] like Figures 4 to 6 As shown, based on Embodiment 1, the output shaft 3 includes an inner shaft 16 and an outer shaft tube 17. The lower end of the inner shaft 16 is connected to the output end of the cam assembly of the divider body 1. A spline is provided on the outer wall of the inner shaft 16. The outer shaft tube 17 is slidably fitted on the inner shaft 16. A spline groove matching the spline of the inner shaft 16 is provided on the inner wall of the outer shaft tube 17. The mounting plate 4 is concentrically mounted on the outer shaft tube 17. The device also includes a screw 18, a slider 19, an arc-shaped slide rail 20, and a nut 21. The lower end of the screw 18 is mounted on a buffer plate 5. The slider 19 is slidably mounted on the screw 18. The arc-shaped slide rail 20 is mounted on the mounting plate 4. The nut 21 is rotatably screwed onto the screw 18 and locks the slider 19. The device also includes a level 22, which is mounted on the mounting plate 4.

[0025] The splined pair between the inner shaft 16 and the outer shaft tube 17 enables the transmission connection between the inner shaft 16 and the outer shaft tube 17. The outer shaft tube 17 slides up and down along the inner shaft 16 to adjust the height of the mounting plate 4, adapting to different external machinery. By turning the nut 21, the slider 19 is loosened, and the height of the slider 19 is adjusted along the screw 18. The slider 19 drives the mounting plate 4 to rise and fall through the arc-shaped slide rail 20. After adjusting the height of the mounting plate 4, the nut 21 is tightened to lock the position of the slider 19. By installing the level 22, it is convenient to adjust the horizontal state of the mounting plate 4 when adjusting it, thus realizing the height adjustment of the mounting plate 4. When the mounting plate 4 and the buffer plate 5 rotate relative to each other, the slider 19 slides along the arc-shaped slide rail 20.

[0026] like Figures 1 to 6 As shown, this utility model discloses a buffer-adjustable cam divider. During operation, firstly, rotating the nut 21 loosens the slider 19, and adjusting the height of the slider 19 along the screw 18. The slider 19 drives the mounting plate 4 to rise and fall via the arc-shaped slide rail 20. After adjusting the height of the mounting plate 4, tightening the nut 21 locks the position of the slider 19. The input end of the external mechanism is connected to the mounting plate 4 via transmission. Then, the external drive mechanism drives the input shaft 2 to rotate at a constant speed. The input shaft 2 drives the cam assembly inside the divider body 1. The cam assembly drives the output shaft 3 and the mounting plate 4 to rotate intermittently at a fixed angle, causing the mounting plate 4 to drive the external mechanism to move intermittently. During this process, the rotation of the input shaft 2 drives the drive gear 10 to rotate. The drive gear 10 meshes with the driven gear 11, driving the bevel gear 12 to rotate. The bevel gear 12 meshes with the bevel gear ring 13 to rotate. 13 drives the buffer disk 5 to rotate at a uniform speed, and the time for the buffer disk 5 to rotate one revolution is the same as the time for the mounting disk 4 to rotate one revolution. At this time, the mounting disk 4 rotates faster than the buffer disk 5. When the mounting disk 4 stops, the buffer disk 5 drives multiple vertical rods 6 and multiple connecting seats 7 to stretch and store multiple springs 8. When the mounting disk 4 starts, the tension of multiple springs 8 applies to the mounting disk 4 for attachment and torsional buffering, thereby reducing the impact force on the output shaft 3 when it starts. Finally, when the mounting disk 4 is about to stop, multiple springs 8 begin to compress and store force, so that when the mounting disk 4 stops, the elastic force of multiple springs 8 applies to the mounting disk 4 and the output shaft 3 for reverse buffering, reducing the inertial torsional impact on the mounting disk 4 and the output shaft 3 when they suddenly stop. This achieves torsional buffering of the cam assembly, output shaft 3 and mounting disk 4 of the divider body 1, thereby reducing the impact force on the output shaft.

[0027] The main functions achieved by this utility model are:

[0028] 1. By using a torsional buffer to start and stop the mounting plate 4, the impact force on the output shaft is reduced, the damage is minimized, and the reliability is improved;

[0029] 2. The rotation of the buffer disk 5 is monitored by the internal gear ring 14 and the sensor 15 to improve stability;

[0030] 3. The height of the installation disk 4 can be easily adjusted.

[0031] This utility model discloses a buffer-adjustable cam divider. Its installation, connection, or setting methods are all common mechanical methods, and any method that can achieve its beneficial effect can be implemented. The divider body 1, input shaft 2, output shaft 3, mounting plate 4, buffer plate 5, spring 8, bearing turntable 9, driving gear 10, driven gear 11, bevel gear 12, bevel gear ring 13, internal gear ring 14, sensor 15, inner shaft 16, outer shaft tube 17, screw 18, slider 19, arc-shaped slide rail 20, nut 21, and level 22 of this utility model are all commercially available. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0032] All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A buffer-adjustable cam divider, comprising a divider body (1), an input shaft (2), an output shaft (3), and a mounting plate (4), wherein a cam assembly is disposed inside the divider body (1), the input shaft (2) is rotatably mounted on the side wall of the divider body (1) and is drivenly connected to the input end of the cam assembly, the output shaft (3) is rotatably mounted on the divider body (1) and is drivenly connected to the output end of the cam assembly, and the mounting plate (4) is concentrically mounted on the top end of the output shaft (3); characterized in that, It also includes a buffer plate (5), multiple vertical rods (6), multiple connecting seats (7) and multiple springs (8). The buffer plate (5) is rotatably mounted on the main body (1) of the divider. The buffer plate (5) is concentrically arranged with the output shaft (3). The buffer plate (5) is connected to the input shaft (2) through a transmission assembly. The lower ends of the multiple vertical rods (6) are evenly mounted on the buffer plate (5). The multiple connecting seats (7) are rotatably mounted on the multiple vertical rods (6). The outer ends of the multiple springs (8) are connected to the multiple connecting seats (7) respectively. The inner ends of the multiple springs (8) are connected to the mounting plate (4). The multiple springs (8) are evenly arranged on the circumference.

2. The buffer-adjustable cam divider as described in claim 1, characterized in that, It also includes a bearing turntable (9), which is mounted on the divider body (1). The bearing turntable (9) is arranged concentrically with the output shaft (3), and the buffer disk (5) is mounted on the rotating end of the bearing turntable (9).

3. The buffer-adjustable cam divider as described in claim 1, characterized in that, The transmission assembly includes a drive gear (10), a driven gear (11), a bevel gear (12), and a bevel gear ring (13). The drive gear (10) is concentrically mounted on the input shaft (2). The driven gear (11) is rotatably mounted on the side wall of the divider body (1) via a rotating shaft. The driven gear (11) meshes with the drive gear (10). The bevel gear (12) is concentrically mounted on the rotating shaft of the driven gear (11). The bevel gear ring (13) is concentrically mounted on the buffer disk (5). The bevel gear ring (13) meshes with the bevel gear (12).

4. A buffer-adjustable cam divider as described in claim 1, characterized in that, It also includes an internal gear ring (14) and a sensor (15). The internal gear ring (14) is concentrically mounted on the buffer disk (5), and the sensor (15) is mounted on the divider body (1). The probe of the sensor (15) faces the internal gear ring (14).

5. A buffer-adjustable cam divider as described in claim 1, characterized in that, The output shaft (3) includes an inner shaft (16) and an outer shaft tube (17). The lower end of the inner shaft (16) is connected to the output end of the cam assembly of the divider body (1). A spline is provided on the outer wall of the inner shaft (16). The outer shaft tube (17) is slidably fitted on the inner shaft (16). A spline groove matching the spline of the inner shaft (16) is provided on the inner wall of the outer shaft tube (17). The mounting plate (4) is concentrically mounted on the outer shaft tube (17).

6. A buffer-adjustable cam divider as described in claim 5, characterized in that, It also includes a screw (18), a slider (19), an arc-shaped slide rail (20), and a nut (21). The lower end of the screw (18) is mounted on the buffer plate (5). The slider (19) is slidably mounted on the screw (18). The arc-shaped slide rail (20) is mounted on the mounting plate (4). The slider (19) is slidably mounted on the arc-shaped slide rail (20). The nut (21) is rotatably screwed onto the screw (18). The nut (21) locks the slider (19).

7. A buffer-adjustable cam divider as described in claim 6, characterized in that, It also includes a level (22), which is mounted on the mounting plate (4).

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