Boring machine platform rocker arm support

Abstract

The boring machine platform rocker arm support comprises the boring machine platform, a T-shaped guide groove is formed in one side of the boring machine platform, a support body is arranged on the T-shaped guide groove, an extension shaft and a rocker arm shaft are rotationally arranged on the support body, one end of the extension shaft is connected with the control shaft end of a boring machine, and the rocker arm shaft is connected with the extension shaft and drives the extension shaft to rotate. The extension shaft and the rocker arm shaft enable the control end to extend towards the outer side of the boring machine platform. According to the rocker arm support of the boring machine platform, the rocker arm support of the rotary working platform of the floor type boring machine is designed, manufactured and put into use, the problem of construction space interference existing in the movement process of a crank is solved, the rocker arm handle is extended out of the tool platform, the safety risk of construction operation is reduced, and workers are protected. Meanwhile, directional rotation of the extension shaft is controlled through cooperation of the one-way driving mechanism and the clutch mechanism, and therefore reverse movement of the workpiece caused by other reasons in the process that the workpiece is controlled to move in a certain direction is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of bracket equipment, in particular to a rocker arm bracket of a boring machine platform. Background Art

[0002] The work platform of the floor-standing boring machine in the workshop is a rotatable workbench. During normal production, its rotation is driven by an electric motor to drive the spindle of the platform to rotate, so that the platform can achieve a rotation effect but has no fine-tuning function. During use, the work platform needs to be fine-tuned frequently, or when calibrating the workpiece during production, when only a few degrees or a few tenths of a degree are needed to rotate the work platform, the work platform can only be manually rotated. There is a rocker at the bottom of the platform side that controls the rotation angle of the rotating platform above the machine tool. The rocker needs to be connected and rotated with a rocker handle. When the handle is working, the working space with the tooling platform below is very small, and there is interference. When rotating the handle, the fingers are easily stuck between the two. Similar situations have occurred before, posing a major safety hazard.

[0003] Secondly, the adjustment rocker arm of the existing boring machine is directly adjustable in both directions for adjusting the rotation angle of the boring machine. The connection of this rocker arm is fixed and directly controlled. Therefore, when processing workpieces, it is necessary to control the boring machine to rotate in a specific direction. If the operator reverses the rotation direction of the rocker arm due to shift change or misoperation, the boring machine will be controlled to rotate in the opposite direction, which is opposite to the expected control direction of the boring machine, thus causing irreversible effects on the workpiece being processed.

[0004] In view of the above, it is necessary to propose a boring machine platform rocker arm bracket to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the above technical problems and to provide a boring machine platform rocker arm bracket.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a boring machine platform rocker arm bracket, including a boring machine platform, a T-shaped guide groove is provided on one side of the boring machine platform, a bracket body is provided on the T-shaped guide groove, an extension shaft and a rocker arm shaft are rotatably provided on the bracket body, one end of the extension shaft is connected to the control shaft end of the boring machine, the rocker arm shaft is connected to the extension shaft and drives it to rotate, and the extension shaft and the rocker arm shaft extend the control end toward the outside of the boring machine platform.

[0007] Furthermore, the bracket body includes an A-shaped bracket, the upper end of the A-shaped bracket is provided with an axial hole, and the lower end is provided with two fixing plates, the fixing plates are L-shaped plates, which are used to be clamped and positioned on the edge of the boring machine platform, and the fixing plates are provided with fixing holes corresponding to the T-shaped guide grooves.

[0008] Furthermore, the extension shaft is coaxially connected to the rocker shaft, the extension shaft is rotatably connected and arranged in the shaft hole, and a crank is provided on one side of the rocker shaft.

[0009] Furthermore, a one-way drive mechanism is provided in the shaft hole, and the output end of the one-way drive mechanism drives the extension shaft to rotate. The rocker shaft and the one-way drive mechanism are axially arranged in parallel, and the rocker shaft and the one-way drive mechanism are meshed and connected via a gear set. The gear set has two groups, namely a forward drive group and a reverse drive group. A clutch mechanism is provided on the rocker shaft, and the clutch mechanism controls the output torque of the rocker shaft and can selectively connect to the forward drive group or the reverse drive group.

[0010] Furthermore, the gear set includes a driving gear and a driven gear, the driving gear is rotatably set on the rocker shaft, the driven gear is rotatably set in the shaft hole, and the driven gear is rotatably connected to the extension shaft, and the driving gear is meshingly connected to the driven gear.

[0011] Furthermore, the unidirectional drive mechanism includes a bidirectional drive disk, the extension shaft is fixedly connected at the center of the bidirectional drive disk, the driven gears of the forward drive group and the reverse drive group are respectively arranged on both sides of the bidirectional drive disk, and the two driven gears have friction surfaces on one side facing the bidirectional drive disk. Ball grooves are respectively provided on both side end surfaces of the bidirectional drive disk, and steel balls are provided in the ball grooves. One side of the steel ball is placed in the ball groove, and the other side is close to the friction surface.

[0012] Furthermore, the two side end faces of the bidirectional driving disk are respectively a forward driving face and a reverse driving face, and each side end face is circumferentially evenly distributed with a plurality of ball grooves, one end of the ball groove is a deep groove and the other end gradually transitions to a shallow groove, the rotation direction of the ball grooves arranged on the same side end face is the same, and the rotation directions of the ball grooves on the forward driving face and the reverse driving face are arranged in opposite directions, and when the bidirectional driving disk rotates, the steel balls move from the deep grooves to the shallow grooves and are pushed outward and squeezed onto the friction surface.

[0013] Furthermore, the clutch mechanism includes a spline part and a spline sleeve, the spline part is integrally formed on the rocker arm shaft, the spline sleeve is slidingly sleeved on the spline part, the two ends of the spline part are respectively rotatably provided with driving gears, and the driving gear is provided with an engaging spline on the side of the spline part; it also includes a shift fork that moves axially along the wave spline sleeve, and a shift key is provided on the bracket body, and the shift key is connected to the shift fork.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention solves the construction space interference problem existing in the process of the rocker movement through the design and manufacture of the rocker support of the rotary working platform of the floor-standing boring machine, and extends the rocker handle outside the tooling platform, thereby reducing the safety risk of construction work and protecting employees. At the same time, the directional rotation of the extension shaft is controlled by the cooperation of the one-way drive mechanism and the clutch mechanism, thereby avoiding the reverse movement of the workpiece due to other reasons in the process of controlling the workpiece to move in a certain direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a first embodiment of a rocker arm bracket of a boring machine platform of the present invention; Figure 2 It is a three-view drawing of a rocker arm bracket of a boring machine platform of the present invention; Figure 3 It is a structural schematic diagram of a second embodiment of a rocker arm bracket of a boring machine platform of the present invention; Figure 4 It is a structural schematic diagram of the one-way driving mechanism in the present invention; Figure 5 An exploded view of a second embodiment of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of the center circle; Figure 7 is a perspective view of a bidirectional drive disc in the present invention; Figure 8 It is a side view of the one-way driving mechanism of the present invention; In the figure: 1. boring machine platform; 2. T-shaped guide groove; 3. bracket body; 4. extension shaft; 5. rocker arm shaft; 6. shaft hole; 7. fixing plate; 8. fixing hole; 9. crank; 10. one-way drive mechanism; 11. gear group; 12. forward drive group; 13. reverse drive group; 14. clutch mechanism; 15. driving gear; 16. driven gear; 17. two-way drive plate; 18. friction surface; 19. ball groove; 20. steel ball; 21. deep groove; 22. shallow groove; 23. spline part; 24. spline sleeve; 25. first engaging spline; 26. second engaging spline; 27. shift fork; 28. shift key. DETAILED DESCRIPTION

[0016] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Embodiment 1:

[0017] A boring machine platform rocker arm bracket comprises a boring machine platform 1, a T-shaped guide groove 2 is provided on one side of the boring machine platform 1, and a bracket body 3 is provided on the T-shaped guide groove 2. Figure 1 , 2 As shown, the T-shaped guide groove 2 serves as the positioning basis of the entire bracket, and the bracket body 3 can move along the T-shaped guide groove 2, so as to realize the extension control of other control rods.

[0018] Specifically, Figure 1 , 2As shown, the bracket body 3 is rotatably provided with an extension shaft 4 and a rocker shaft 5, one end of the extension shaft 4 is connected to the control shaft end of the boring machine, the rocker shaft 5 is connected to the extension shaft 4 and drives it to rotate, and the extension shaft 4 and the rocker shaft 5 extend the control end to the outside of the boring machine platform 1. One end of the extension shaft 4 is fixedly connected to the control shaft end on the boring machine, so that the control end can be extended outward to the outside of the boring machine platform 1, thereby avoiding interference with the boring machine platform 1 when the crank 9 is turned. Specifically, the bracket body 3 forms an A-shaped bracket, the upper end of the A-shaped bracket is provided with an axis hole 6, and the lower end is provided with two fixing plates 7, the fixing plate 7 is an L-shaped plate, which is used to be clamped and positioned on the edge of the boring machine platform 1, and the fixing plate 7 is provided with a fixing hole 8 corresponding to the T-shaped guide groove 2. The extension shaft 4 is coaxially connected with the rocker shaft 5, and the extension shaft 4 is rotatably connected and arranged in the axis hole 6, and a crank 9 is provided on one side of the rocker shaft 5. In this embodiment, the extension shaft 4 and the rocker arm shaft 5 are the same shaft, so that the extension shaft 4 can be rotated by the crank handle 9 to control the rotation of the boring machine. Since the extension shaft 4 extends the control point, the crank handle 9 extends to the outside of the boring machine platform 1, so that when the crank handle 9 is turned, the hand will not be stuck on the boring machine platform 1. Embodiment 2:

[0019] When a boring machine is actually used to process a workpiece, the crank 9 is usually turned to control the boring machine to rotate a certain angle, and as the processing proceeds, the boring machine is gradually processed in one direction. For large workpieces, boring and milling usually takes a long time. In this process, human factors and other factors are likely to confuse the previous rotation direction, and because it is opposite to the expected adjustment direction, it is easy to cause the workpiece to be damaged during processing. In order to solve this type of problem, as an improvement, Figure 3-8 As shown, a one-way drive mechanism 10 is provided in the shaft hole 6, and the output end of the one-way drive mechanism 10 drives the extension shaft 4 to rotate. The rocker shaft 5 and the one-way drive mechanism 10 are axially parallel and arranged. The rocker shaft 5 and the one-way drive mechanism 10 are meshed and connected via a gear set 11. The gear set 11 has two groups, namely a forward drive group 12 and a reverse drive group 13. A clutch mechanism 14 is provided on the rocker shaft 5. The clutch mechanism 14 controls the output torque of the rocker shaft 5 and can selectively connect to the forward drive group 12 or the reverse drive group 13. Figure 3 As shown, a dial key 28 for controlling the switching of the clutch mechanism 14 is provided on one side of the bracket body 3, so as to realize the connection between the rocker shaft 5 and the different steering control parts of the one-way drive mechanism 10, thereby controlling the extension shaft 4 to rotate in only one direction; it can be understood that when the dial key 28 is moved to one end, the boring machine can be controlled to rotate in one direction, so that during the processing, the crank handle 9 will not be reversed due to human reasons, causing the boring machine to rotate in the opposite direction; and, if the boring machine is controlled to rotate in the opposite direction as needed, the dial key 28 needs to be moved to the other end, so that the boring machine can be controlled to rotate in the opposite direction.

[0020] Specifically, the gear set 11 includes a driving gear 15 and a driven gear 16. The driving gear 15 is rotatably disposed on the rocker shaft 5, and the driven gear 16 is rotatably disposed in the shaft hole 6. The driven gear 16 is rotatably connected to the extension shaft 4, and the driving gear 15 is meshed with the driven gear 16. Figure 4 , 8 As shown, the two driving gears 15 are both rotatably arranged on the rocker shaft 5. The driving gears 15 can be rotatably connected to the rocker shaft 5 by bearings. The two driving gears 15 respectively drive the driven gears 16 to rotate.

[0021] Furthermore, the one-way drive mechanism 10 includes a two-way drive disk 17, the extension shaft 4 is fixedly connected to the center of the two-way drive disk 17, the driven gears 16 of the forward drive group 12 and the reverse drive group 13 are respectively arranged on both sides of the two-way drive disk 17, the spacing between the two driven gears 16 remains fixed, the two driven gears 16 are facing the two-way drive disk 17 on one side as a friction surface 18, the two side end surfaces of the two-way drive disk 17 are respectively provided with ball grooves 19, the ball grooves 19 are provided with steel balls 20, one side of the steel balls 20 is placed in the ball grooves 19, and the other side is close to the friction surface 18. Figure 5-7 As shown, steel balls 20 are filled in ball grooves 19 between the two side surfaces of the driving disk and the friction surface 18, so when any driven gear 16 rotates, the steel balls 20 can be driven to rotate through the friction surface 18. The two side end surfaces of the bidirectional driving disk 17 are respectively the forward driving surface and the reverse driving surface, and a plurality of ball grooves 19 are evenly distributed circumferentially on each side end surface, one end of the ball groove 19 is a deep groove 21, and the other end gradually transitions to a shallow groove 22. The ball grooves 19 arranged on the same side end surface have the same rotation direction. For example, the clutch mechanism 14 controls the gear group 11 of the forward driving group 12 to output power. At this time, the driven gear 16 of the forward driving group 12 is driven to rotate, and its friction surface 18 drives the steel balls 20 to move in the ball groove 19. Figure 5 , 6As shown, if the driven gear 16 rotates clockwise, the steel ball 20 moves from the deep groove 21 to the shallow groove 22. Since the spacing between the two-way driving disk 17 and the driven gears 16 on both sides remains unchanged, the steel ball 20 is gradually squeezed, so that the two-way driving disk 17 rotates clockwise along with the driven gear 16 of the forward driving group 12. At this time, the power can be transmitted to the extension shaft 4 to rotate clockwise. Due to the long processing time, during this period, the operator changes, or the operator forgets the previous rotation direction and rotates the crank 9 in the opposite direction. At this time, the forward driving group 12 When the driven gear 16 of the driving group 12 rotates counterclockwise, the steel ball 20 moves from the shallow groove 22 to the deep groove 21. At this time, the steel ball 20 can rotate freely in the deep groove 21, so the driven gear 16 cannot transmit power to the two-way driving disk 17. Therefore, the rocker arm shaft 5 is actually in an idling state at this time. The operator can know that the rotation direction is wrong through the "no resistance" feel transmitted by the hand end at this time. As long as the rotation direction is changed, the operation can continue, thereby improving the fault tolerance of the equipment operation and avoiding the incorrect processing of the workpiece due to misoperation.

[0022] Further, such as Figure 8 As shown, the rotation directions of the ball grooves 19 on the forward driving surface and the reverse driving surface are opposite, and when the two-way driving disc 17 rotates, the steel balls 20 move from the deep grooves 21 to the shallow grooves 22, and the steel balls 20 are pushed outward and pressed on the friction surface 18. Since the ball grooves 19 on the two end surfaces of the two-way driving disc 17 are arranged in opposite directions, the forward driving group 12 and the reverse driving group 13 respectively control one rotation direction of the rocker shaft 5, and the principles of the two driving groups are the same.

[0023] When in use, the clutch mechanism 14 controls the rocker shaft 5 to transmit the driving force to different drive groups, thereby realizing the rotation control of the extension shaft 4 in different directions and effectively avoiding misoperation. Specifically, Figure 3-5As shown, the clutch mechanism 14 includes a spline portion 23 and a spline sleeve 24. The spline portion 23 is integrally formed on the rocker shaft 5. The spline sleeve 24 is slidably sleeved on the spline portion 23. The two ends of the spline portion 23 are respectively rotatably provided with drive gears 15, and the drive gear 15 is provided with an engaging spline toward the side of the spline portion 23; it also includes a shift fork 27 that moves axially along the wave spline sleeve 24, and a shift key 28 is provided on the bracket body 3, and the shift key 28 is connected to the shift fork 27. It can be understood that the movement of the shift fork 27 in the bracket body 3 can be controlled by the external shift key 28, thereby shifting the movement of the spline sleeve 24 on the spline portion 23. The spline sleeve 24 rotates together with the spline portion 23. When the spline portion 23 needs to be connected to the forward drive group 12, the shift fork 27 controls the spline sleeve 24 to move toward the first engagement spline 25 side, and at the same time, it is sleeved on the first engagement spline 25 and the spline portion 23. At this time, the power of the rocker shaft 5 is transmitted to the forward drive group 12; on the contrary, when the spline sleeve 24 moves to the other end, the power is transmitted to the reverse drive group 13.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A boring machine platform rocker arm bracket, comprising a boring machine platform (1), characterized in that: A T-shaped guide groove (2) is provided on one side of the boring machine platform (1); a bracket body (3) is provided on the T-shaped guide groove (2); an extension shaft (4) and a rocker shaft (5) are rotatably provided on the bracket body (3); one end of the extension shaft (4) is connected to the control shaft end of the boring machine; the rocker shaft (5) is connected to the extension shaft (4) and drives the extension shaft (4) to rotate; the extension shaft (4) and the rocker shaft (5) extend the control end toward the outside of the boring machine platform (1).

2. The boring machine platform rocker arm bracket according to claim 1, characterized in that: The bracket body (3) comprises an A-shaped bracket, the upper end of the A-shaped bracket is provided with an axial hole (6), and the lower end is provided with two fixing plates (7), the fixing plates (7) are L-shaped plates, and are used for clamping and positioning on the edge of the boring machine platform (1), and the fixing plates (7) are provided with fixing holes (8) corresponding to the T-shaped guide grooves (2).

3. The boring machine platform rocker arm bracket according to claim 2, characterized in that: The extended shaft (4) is coaxially connected to the rocker shaft (5); the extended shaft (4) is rotatably connected and arranged in the shaft hole (6); and a crank handle (9) is provided on one side of the rocker shaft (5).

4. The boring machine platform rocker arm bracket according to claim 2, characterized in that: A one-way drive mechanism (10) is arranged in the shaft hole (6), and the output end of the one-way drive mechanism (10) drives the extension shaft (4) to rotate. The rocker shaft (5) and the one-way drive mechanism (10) are axially arranged parallel to each other. The rocker shaft (5) and the one-way drive mechanism (10) are meshingly connected via a gear set (11). The gear set (11) has two groups, namely a forward drive group (12) and a reverse drive group (13). A clutch mechanism (14) is arranged on the rocker shaft (5). The clutch mechanism (14) controls the output torque of the rocker shaft (5) and can selectively connect to the forward drive group (12) or the reverse drive group (13).

5. The boring machine platform rocker arm bracket according to claim 4, characterized in that: The gear set (11) comprises a driving gear (15) and a driven gear (16); the driving gear (15) is rotatably disposed on the rocker arm shaft (5); the driven gear (16) is rotatably disposed in the shaft hole (6); and the driven gear (16) is rotatably connected to the extension shaft (4); the driving gear (15) and the driven gear (16) are meshingly connected.

6. The boring machine platform rocker arm bracket according to claim 4, characterized in that: The one-way drive mechanism (10) comprises a two-way drive disk (17), the extension shaft (4) is fixedly connected to the center of the two-way drive disk (17), the driven gears (16) of the forward drive group (12) and the reverse drive group (13) are respectively arranged on both sides of the two-way drive disk (17), the two driven gears (16) have friction surfaces (18) facing the two-way drive disk (17), and the two side end surfaces of the two-way drive disk (17) are respectively provided with ball grooves (19), and the ball grooves (19) are provided with steel balls (20), one side of the steel balls (20) is placed in the ball grooves (19), and the other side is close to the friction surface (18).

7. The boring machine platform rocker arm bracket according to claim 6, characterized in that: The two side end surfaces of the bidirectional drive disc (17) are respectively a forward drive surface and a reverse drive surface, and a plurality of ball grooves (19) are evenly distributed in the circumferential direction on each side end surface, one end of the ball groove (19) is a deep groove (21) and the other end gradually transitions to a shallow groove (22), the ball grooves (19) arranged on the same side end surface have the same rotation direction, and the ball grooves (19) on the forward drive surface and the reverse drive surface are arranged in opposite rotation directions, and when the bidirectional drive disc (17) rotates, the steel balls (20) move from the deep grooves (21) to the shallow grooves (22) and are pushed outward and pressed onto the friction surface (18).

8. The boring machine platform rocker arm bracket according to claim 5, characterized in that: The clutch mechanism (14) comprises a spline portion (23) and a spline sleeve (24); the spline portion (23) is integrally formed on the rocker arm shaft (5); the spline sleeve (24) is slidably sleeved on the spline portion (23); driving gears (15) are rotatably arranged at both ends of the spline portion (23); a coupling spline is arranged on the side of the driving gear (15) facing the spline portion (23); and a shift fork (27) is also included which moves axially along the wave spline sleeve (24); a shift key (28) is arranged on the bracket body (3); and the shift key (28) is connected to the shift fork (27).

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