Intermittent hydraulic shifting fork executing mechanism

Abstract

The utility model discloses an intermittent hydraulic drive shifting fork executing mechanism which comprises a rotating shaft, the rotating shaft is sequentially sleeved with an indexing rotary disc assembly and a bearing disc, the indexing rotary disc assembly comprises a plurality of indexing discs coaxially and slidably arranged on the rotating shaft in a sleeved mode, and plug pins are evenly distributed on the end faces of the indexing discs in the circumferential direction. The circumferential distribution interval angles of the bolts on different index plates are different; a shifting fork is linearly arranged on one side of the indexing rotary disc assembly in a sliding mode, a fork opening of the shifting fork is matched with the plug pin, and a fork base of the shifting fork is connected with the hydraulic reciprocating linear driving mechanism. The intermittent indexing rotary machining device can efficiently drive a workpiece to intermittently rotate in an accurate angle indexing mode, and intermittent indexing rotary machining of the workpiece is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of intermittent hydraulic actuators and relates to an intermittent hydraulic shift fork actuator. Background Art

[0002] In the process of intermittent cyclic processing of workpieces, the workpiece to be processed needs to be continuously moved to the processing station at specific time intervals so that the workpiece can be intermittently processed in a cyclic manner. In the prior art, an intermittent cycle turntable is usually used to drive the workpiece to rotate intermittently in a cyclic manner, and the angle of each rotation of the workpiece is usually controlled by the start and stop of the motor. This results in the need for the motor to be started and stopped frequently during a long processing period, making the motor control difficult and reducing the service life of the motor. In addition, the interval angle of each rotation of the existing intermittent cycle turntable is achieved by adjusting the start and stop of the motor and the rotation speed. Once the rotation angle needs to be changed each time, the motor needs to be readjusted, which makes the operation complicated and cumbersome.

[0003] Therefore, in order to solve the above-mentioned technical problems existing in the existing intermittent circulation turntable, the utility model discloses an intermittent hydraulic fork actuator. Utility Model Content

[0004] The purpose of the utility model is to provide an intermittent hydraulic fork actuator, which can efficiently drive a workpiece to perform intermittent rotation at an accurate angle indexing, thereby realizing intermittent indexing and rotation processing of the workpiece.

[0005] The utility model is achieved through the following technical solutions:

[0006] An intermittent hydraulic shift fork actuator comprises a rotating shaft, on which a graduated turntable assembly and a carrier plate are sequentially sleeved, the graduated turntable assembly comprising a plurality of coaxially sliding graduated turnstables sleeved on the rotating shaft, the end surfaces of the graduated turnstables being uniformly provided with latches in the circumferential direction, and the circumferential distribution interval angles of the latches on different graduated turnstables being different; a shift fork is linearly slidably provided on one side of the graduated turntable assembly, the fork opening of the shift fork cooperates with the latch, and the fork seat of the shift fork is connected to a hydraulic reciprocating linear drive mechanism.

[0007] The hydraulic reciprocating linear drive mechanism drives the shift fork to perform linear reciprocating movement. As the shift fork moves linearly toward the latch, the fork engages and pushes the latch, causing the indexing plate to rotate the shaft to a specific angle. This in turn causes the motorized carrier plate to rotate the shaft to a specific angle. The carrier plate evenly supports and fixes a number of workpieces to be processed. The rotation of the carrier plate drives the workpieces to rotate at a specific angle. The shift fork moves linearly away from the latch, separating the latch from the fork until the next linear movement of the shift fork, causing the fork to engage with the next latch, thereby driving the indexing plate to continue rotating at a specific angle. The above process is repeated, thereby achieving intermittent rotation of the carrier plate at a specific angle.

[0008] In order to better realize the present utility model, further, the dividing plate includes a dividing base plate and a dividing limit plate, and the dividing base plate is provided with an annular groove; the dividing limit plate is detachably coaxially arranged on one side of the dividing base plate, and the dividing limit plate is provided with a plurality of dividing holes evenly distributed along the circumference at positions corresponding to the annular groove, and one end of the pin passes through the dividing hole and is slidably connected with the annular groove.

[0009] In order to better realize the present invention, further, spacer sleeves are coaxially arranged between adjacent dividing plates, the spacer sleeves are slidingly sleeved outside the rotating shaft, and a locking mechanism is provided between the spacer sleeves and the rotating shaft.

[0010] In order to better realize the present invention, the locking mechanism further includes a locking petal and a locking nut. The outer wall of the locking petal is provided with an external thread. The locking petal is circumferentially arranged at one end of the spacer sleeve. The external thread of the locking petal is matched with the sleeve and is provided with a locking nut.

[0011] In order to better realize the present invention, further, a plurality of grooves are evenly distributed along the circumference on the outer edge of the dividing plate, the interval angle between adjacent grooves is equal to the interval angle between adjacent pins, a protrusion is provided on one side of the groove, and a compression spring is provided on the side of the protrusion away from the groove.

[0012] In order to better realize the present utility model, further, the hydraulic reciprocating linear drive mechanism includes a hydraulic motor, a driving turntable, and a crank-connecting rod group. The center of the driving turntable is connected to the output shaft of the hydraulic motor through a driving shaft, one end of the crank-connecting rod group is hinged to the non-center point on the end face of the driving turntable, and the other end of the crank-connecting rod group is connected to the fork seat of the shift fork.

[0013] In order to better realize the present invention, further, a support seat is provided at the bottom of the shift fork, a linear slide groove is provided on the support seat, and the bottom of the shift fork is slidably connected with the linear slide groove through a slide rod.

[0014] In order to better realize the present invention, further, a plurality of positioning grooves or positioning pins are evenly distributed along the circumferential direction on the end surface of the carrier plate away from the indexing turntable assembly.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0016] The utility model drives the shift fork to move reciprocatingly linearly through a reciprocating linear drive mechanism, and drives the pins uniformly arranged circumferentially on the indexing plate to rotate at a specific angle through the shift fork, thereby driving the indexing plate, the rotating shaft, and the carrying plate to intermittently rotate at a specific angle, and finally realizes high-precision intermittent indexing rotation of the workpiece on the carrying plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional structural diagram of an intermittent hydraulic scotch fork actuator;

[0018] Figure 2 It is a bottom view of the intermittent hydraulic scotch fork actuator;

[0019] Figure 3 It is a structural diagram of the indexing plate assembly;

[0020] Figure 4 for Figure 1 A local enlarged view of point A;

[0021] Figure 5 Schematic diagram of the structure of the reciprocating linear drive machine.

[0022] Among them: 1-rotating shaft; 2-indexing plate assembly; 3-carrying plate; 4-pin; 5-fork; 6-reciprocating linear drive mechanism; 7-groove; 8-bump; 9-spring; 21-indexing plate; 22-spacer sleeve; 23-locking mechanism; 51-support seat; 52-linear slide; 53-slide rod; 61-hydraulic motor; 62-drive turntable; 63-crank-connecting rod assembly; 211-indexing base plate; 212-indexing limit plate; 213-ring groove; 214-indexing hole; 231-locking petal; 232-locking nut. DETAILED DESCRIPTION

[0023] The following detailed description is illustrative and is intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise expressly specified in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0025] For the convenience of description, if the words "up", "down", "left" and "right" appear in this utility model, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they cannot be understood as limiting the utility model.

[0026] Explanation of terms: The terms "install", "connect", "connect", "fix" and so on in this utility model should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection, a direct connection or an indirect connection through an intermediate medium, an internal connection between two elements, or an interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0027] Example 1:

[0028] An intermittent hydraulic fork actuator of this embodiment, such as Figure 1 、 Figure 2 As shown, it includes a rotating shaft 1, and the rotating shaft 1 is sequentially sleeved with a dividing turntable assembly 2 and a carrying plate 3. The dividing turntable assembly 2 includes a plurality of dividing plates 21 coaxially slidably sleeved on the rotating shaft 1. The end surface of the dividing plate 21 is uniformly provided with pins 4 along the circumferential direction, and the circumferential distribution interval angles of the pins 4 on different dividing plates 21 are different; a shift fork 5 is linearly slidably provided on one side of the dividing turntable assembly 2, the fork mouth of the shift fork 5 cooperates with the pin 4, and the fork seat of the shift fork 5 is connected to the hydraulic reciprocating linear drive mechanism 6.

[0029] The shift fork 5 is driven by a hydraulic reciprocating linear drive mechanism 6 to cyclically perform linear motions toward and away from the latch 4. When the shift fork 5 gradually approaches the latch 4 and moves linearly, the fork engages with the latch 4 and pushes the latch 4 to drive the indexing plate 21 to rotate at a specific angle. When the shift fork 5 gradually moves linearly away from the latch 4, the fork disengages from the latch 4 and no longer pushes the indexing plate 21 to rotate. Until the next time the shift fork approaches the latch 4 and moves linearly, the fork pushes the next latch 4 to drive the indexing plate 21 to intermittently rotate at a specific angle. The above process is repeated repeatedly to achieve synchronous intermittent rotation of the indexing plate 21, the rotating shaft 1, and the carrier plate 3 at a specific angle. Workpieces are evenly distributed and fixed along the circumference of the carrier plate 3, thereby achieving intermittent rotation of the workpiece at a specific angle. Whenever the workpiece rotates to the processing station, the workpiece at the current position can be processed.

[0030] To accommodate diverse processing requirements, several indexing plates 21 are coaxially arranged. The spacing between the pins 4, evenly distributed on each indexing plate 21, varies. For example, if six pins 4 are evenly distributed on a indexing plate 21, the spacing between adjacent pins 4 is 60°, meaning that each rotation of the carrier plate 3 by the indexing plate 21 is 60°. For example, if twelve pins 4 are evenly distributed on a indexing plate 21, the spacing between adjacent pins 4 is 30°, meaning that each rotation of the carrier plate 3 by the indexing plate 21 is 30°.

[0031] Furthermore, a plurality of positioning grooves or positioning pins are evenly distributed along the circumference on the end surface of the carrier plate 3 away from the dividing turntable assembly 2. The positioning grooves and positioning pins are used to cooperate with the positioning protrusions or positioning holes on the workpiece to achieve rapid positioning and fixation of the workpiece on the carrier plate 3.

[0032] Example 2:

[0033] An intermittent hydraulic fork actuator is improved on the basis of Example 1, such as Figure 2 and Figure 3 As shown, the dividing plate 21 includes a dividing base plate 211 and a dividing limit plate 212, and the dividing base plate 211 is provided with an annular groove 213; the dividing limit plate 212 is detachably coaxially arranged on one side of the dividing base plate 211, and the dividing limit plate 212 is provided with a plurality of dividing holes 214 evenly distributed along the circumferential direction at positions corresponding to the annular groove 213, and one end of the pin 4 passes through the dividing hole 214 and is slidably connected with the annular groove 213.

[0034] The annular groove 213 on the indexing base 211 is used to support the latch pins 4, while the indexing holes 214 on the indexing stop plate 212 are used to limit the angular spacing between adjacent latch pins 4. For example, the indexing stop plate 212 may have six indexing holes 214 evenly distributed along its circumference. The indexing stop plate 212 is secured to one end of the indexing base 211 via bolts. In this manner, six latch pins 4 can be positioned within the annular groove 213 at 60° intervals, using the six indexing holes 214.

[0035] The rest of this embodiment is the same as that of embodiment 1, so it will not be described again.

[0036] Example 3:

[0037] An intermittent hydraulic fork actuator is improved on the basis of embodiment 1 or 2, such as Figure 3 and Figure 4 As shown, a spacer sleeve 22 is coaxially disposed between adjacent indexing plates 21. The spacer sleeve 22 is slidably mounted on the exterior of the rotating shaft 1, and a locking mechanism 23 is disposed between the spacer sleeve 22 and the rotating shaft 1. The spacer sleeve 22 is used to separate adjacent indexing plates 21 to prevent the latches 4 on adjacent indexing plates 21 from interfering with each other. By sliding the spacer sleeve 22 on the rotating shaft 1, the indexing plates 21 are pushed to slide outside the rotating shaft 1, thereby enabling the latches 4 on different indexing plates 21 to align with the fork of the shift fork 5. Once the indexing plates 21 have slid into position, the spacer sleeve 22 can be locked and fixed to the exterior of the rotating shaft 1 by the locking mechanism 23. At this point, the spacer sleeve 22 cannot slide further, thereby achieving the positioning and fixation of the indexing plates 21 outside the rotating shaft 1.

[0038] Furthermore, the locking mechanism 23 includes a locking flap 231 and a locking nut 232. The outer wall of the locking flap 231 is provided with an external thread. The locking flap 231 is circumferentially arranged at one end of the spacer sleeve 22. The external thread of the locking flap 231 is matched with the locking nut 232.

[0039] When the locking nut 232 is loosened, the locking nut 232 does not squeeze the locking petal 231. At this time, the inner surface of the locking petal 231 does not clamp the rotating shaft 1, allowing the spacer sleeve 22 to slide along the rotating shaft 1. When the locking nut 232 is tightened, the locking nut 232 squeezes the locking petal 231. At this time, the inner surface of the locking petal 231 clamps the rotating shaft 1, achieving the positioning and fixation of the spacer sleeve 22 outside the rotating shaft 1.

[0040] The rest of this embodiment is the same as that of embodiment 1 or 2, so they will not be described again.

[0041] Example 4:

[0042] An intermittent hydraulic fork actuator is improved on the basis of any one of embodiments 1-3, such as Figure 1 and Figure 2 As shown, a plurality of grooves 7 are evenly distributed along the circumferential direction on the outer edge of the dividing plate 21, and the spacing angle between adjacent grooves 7 is equal to the spacing angle between adjacent pins 4. A protrusion 8 is provided on one side of the groove 7, and a compression spring 9 is provided on the side of the protrusion 8 away from the groove 7.

[0043] When the shift fork 5 pushes the latch 4 to rotate the indexing plate 21 to a specific angle, the projection 8 is squeezed by the groove 7, compressing the compression spring 9. The projection 8 then escapes from the groove 7, allowing the indexing plate 21 to rotate to a specific angle. After the indexing plate 21 has rotated to a specific angle, the projection 8 aligns with the next groove 7 and, driven by the rebound force of the spring 9, engages with the next groove 7. This ensures that each time the shift fork 5 pushes the latch 4, the indexing plate 21 rotates to a specific angle, preventing the indexing plate 21 from rotating too far.

[0044] The rest of this embodiment is the same as any one of Embodiments 1-3, so it will not be described again.

[0045] Example 5:

[0046] An intermittent hydraulic fork actuator is improved on the basis of any one of embodiments 1-4, such as Figure 2 and Figure 5 As shown, the hydraulic reciprocating linear drive mechanism 6 includes a hydraulic motor 61, a driving turntable 62, and a crank-connecting rod group 63. The center of the driving turntable 62 is connected to the output shaft of the hydraulic motor 61 through a driving shaft. One end of the crank-connecting rod group 63 is hinged to a non-center point on the end face of the driving turntable 62, and the other end of the crank-connecting rod group 63 is connected to the fork seat of the shift fork 5.

[0047] One end of the crank-connecting rod assembly 63 is hinged to a pin located at a non-center position on the surface of the drive turntable 62, and the other end of the crank-connecting rod assembly 63 is hinged to a pin on the fork seat of the shift fork 5. The hydraulic motor 61 drives the drive turntable 62 to rotate, which in turn drives the crank-connecting rod assembly 63 to reciprocate linearly, ultimately driving the shift fork 5 to perform linear reciprocating motion.

[0048] Furthermore, the bottom of the shift fork 5 is provided with a support base 51, and the support base 51 is provided with a linear slide 52. The bottom of the shift fork 5 is slidably connected to the linear slide 52 via a slide rod 53. The sliding cooperation between the linear slide 52 and the slide rod 53 enables the shift fork 5 to strictly perform reciprocating linear motion.

[0049] The above are only preferred embodiments of the present invention and do not limit the present invention in any form. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention fall within the scope of protection of the present invention.

Claims

1. An intermittent hydraulic fork actuator, comprising a rotating shaft (1), wherein the rotating shaft (1) is sequentially sleeved with an indexing turntable assembly (2) and a carrier plate (3), characterized in that: The indexing turntable assembly (2) comprises a plurality of indexing disks (21) coaxially slidably sleeved on the rotating shaft (1), and latches (4) are uniformly arranged along the circumferential direction on the end surface of the indexing disk (21), and the circumferential distribution interval angles of the latches (4) on different indexing disks (21) are different; a shift fork (5) is linearly slidably arranged on one side of the indexing turntable assembly (2), the fork opening of the shift fork (5) cooperates with the latches (4), and the fork seat of the shift fork (5) is connected to a hydraulic reciprocating linear drive mechanism (6).

2. The intermittent hydraulic fork actuator according to claim 1, characterized in that: The indexing plate (21) comprises a indexing base plate (211) and a indexing limit plate (212), wherein the indexing base plate (211) is provided with an annular groove (213); the indexing limit plate (212) is detachably coaxially arranged on one side of the indexing base plate (211), and a plurality of indexing holes (214) are uniformly distributed along the circumference at positions corresponding to the annular groove (213) on the indexing limit plate (212), and one end of the latch (4) passes through the indexing hole (214) and is slidably connected to the annular groove (213).

3. The intermittent hydraulic fork actuator according to claim 2, characterized in that: A spacing sleeve (22) is coaxially arranged between adjacent indexing plates (21), the spacing sleeve (22) is slidingly sleeved outside the rotating shaft (1), and a locking mechanism (23) is provided between the spacing sleeve (22) and the rotating shaft (1).

4. The intermittent hydraulic fork actuator according to claim 3, characterized in that: The locking mechanism (23) comprises a locking flap (231) and a locking nut (232); an outer wall of the locking flap (231) is provided with an external thread; the locking flap (231) is circumferentially arranged at one end of the spacer sleeve (22); and the outer thread of the locking flap (231) is fitted with a locking nut (232).

5. An intermittent hydraulic fork actuator according to any one of claims 1 to 4, characterized in that: A plurality of grooves (7) are uniformly distributed along the circumferential direction on the outer edge of the indexing disk (21), and the spacing angle between adjacent grooves (7) is equal to the spacing angle between adjacent pins (4). A protrusion (8) is provided on one side of the groove (7), and a compression spring (9) is provided on the side of the protrusion (8) away from the groove (7).

6. An intermittent hydraulic fork actuator according to any one of claims 1 to 4, characterized in that: The hydraulic reciprocating linear drive mechanism (6) comprises a hydraulic motor (61), a driving turntable (62), and a crank connecting rod group (63). The center of the driving turntable (62) is connected to the output shaft of the hydraulic motor (61) via a driving shaft. One end of the crank connecting rod group (63) is hinged to a non-center point on the end surface of the driving turntable (62). The other end of the crank connecting rod group (63) is connected to the fork seat of the shift fork (5).

7. The intermittent hydraulic scotch fork actuator according to claim 6, characterized in that: The bottom of the shift fork (5) is provided with a support seat (51), a linear slide groove (52) is provided on the support seat (51), and the bottom of the shift fork (5) is connected to the linear slide groove (52) in a sliding manner through a slide rod (53).

8. An intermittent hydraulic fork actuator according to any one of claims 1 to 4, characterized in that: A plurality of positioning grooves or positioning pins are evenly distributed along the circumference on the end surface of the carrier plate (3) away from the indexing turntable assembly (2).

Images