Automatic feeding device for solid shafts

Abstract

The invention relates to the technical field of conveying and feeding, and discloses an automatic feeding device for solid shafts. The device comprises a shelf, wherein a lifting mechanism and a material guide frame matched with the lifting mechanism for lifting are arranged on the shelf; the lifting mechanism comprises a first lifting frame capable of lifting and a second lifting frame which is in reverse transmission lifting with the first lifting frame, and the top of the first lifting frame and the top of the second lifting frame are both in a slope shape, so that when the first lifting frame drives the solid shaft to ascend, the second lifting frame can synchronously descend and bear the lifted solid shaft; and a splicing frame capable of being switched between sliding connection and limited connection with the second lifting frame is arranged in the second lifting frame, so that the lifting distance of the second lifting frame is increased. According to the feeding device, passing type lifting feeding of the solid shafts can be achieved, when lifting discharging is conducted on the solid shafts, the lifting mechanism used for discharging does not need to return to an initial point to bear new solid shafts, and therefore the feeding efficiency of the solid shafts can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of conveying and feeding, and in particular to an automatic feeding device for a real shaft. Background Art

[0002] The automobile drive shaft is an important connecting component for transmitting power in the automobile transmission system. Its function is to transmit the power of the engine to the wheels together with the gearbox and drive axle to generate driving force for the automobile. After the blank is formed, the drive shaft (real shaft) needs to go through rough processing (lathe cutting), heat treatment (quenching and tempering), finishing (fine milling, etc.), surface treatment (tin plating, spray painting, etc.), testing and other steps. When the real shaft is processed or transferred, it often needs to be transported by a loading device, so that the stacked real shafts can automatically enter the processing equipment or transmission equipment in turn, eliminating the tedious manual loading.

[0003] Most of the current real shaft feeding devices adopt a lifting method (through a hydraulic rod) to sort the real shafts and send them into the processing equipment, but the disadvantage of this method is that when the lifting mechanism is feeding the current real shaft, the subsequent real shaft to be lifted is always in the initial position. After completing a feeding operation, the lifting mechanism needs to return to the initial position, that is, the lowest point, when it wants to lift the subsequent real shaft. Therefore, the time for the lifting mechanism to lift and reset will be consumed. The greater the lifting distance of the lifting mechanism, the more time it consumes, which will affect the feeding efficiency of the real shaft. Therefore, it is necessary to propose an automatic real shaft feeding device to solve this technical problem. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a real shaft automatic feeding device.

[0005] The present invention is implemented by the following technical scheme: a shelf, a lifting mechanism and a material guide frame that cooperates with the lifting mechanism to rise and fall; the lifting mechanism includes a first lifting frame that can be lifted and lowered and a second lifting frame that is lifted and lowered in the reverse direction of the first lifting frame, the tops of the first lifting frame and the second frame are both sloped, so that when the first lifting frame drives the real shaft to rise, the second lifting frame will synchronously descend and receive the lifted real shaft, and a connecting frame that can switch between a sliding connection and a limited connection with the first lifting frame is provided in the second lifting frame, so as to increase the lifting distance of the second lifting frame, the first lifting frame is provided with a first rack that can be lifted and lowered and reset, the second lifting frame and the connecting frame are respectively fixedly provided with a second rack and a third rack, the second rack is provided with a switching component for controlling the connection between the second lifting frame and the connecting frame, and a first gear that is rotatably installed on the shelf and meshes with the first rack and the second rack and is used to control the switching component.

[0006] As a further improvement of the above solution, a motor for driving the first gear to rotate is fixedly mounted on the shelf, and the motor is drivingly connected to the first gear.

[0007] As a further improvement of the above scheme, a lifting and resetting mechanism is arranged on the first lifting frame, and the lifting and resetting mechanism includes a connecting plate fixedly connected to the first lifting frame, and two first sliding rods are fixedly installed on the connecting plate, and a sliding cylinder and two first springs are slidingly sleeved on the two first sliding rods, and the two first springs are respectively located at both ends of the sliding cylinder and resist against it, and the two sliding cylinders are fixedly connected to the first rack, so that the first rack can move up and down within a certain range after being subjected to force.

[0008] As a further improvement of the above scheme, the switching assembly includes a cavity arranged on the second rack, in which a slider is slidably installed that can be moved and reset and extends on one side outside the cavity and abuts against the first gear. A second spring is arranged between the slider and the inner wall of the cavity, a clamping block is arranged on the slider, and a clamping slot matching the clamping block is arranged on the connecting frame.

[0009] As a further improvement of the above solution, the position of the slot is slightly higher than the block, so that after the second lifting frame rises driven by the first gear and releases the restriction on the slider, the block is just inserted into the slot.

[0010] As a further improvement of the above scheme, a fourth rack is arranged on the shelf, a second gear meshing with the fourth rack is rotatably installed on one side of the second lifting frame, a third gear connected to the second gear in the same direction as the transmission is rotatably installed on one side of the second lifting frame, a fifth rack for limiting the material guide rack and movable and reset is slidably installed on one side of the second lifting frame, and the fifth rack is a single tooth and meshes with the third gear.

[0011] As a further improvement of the above solution, a limiting block is provided on one side edge of the second lifting frame close to the material guide frame, so as to limit the descending distance of the material guide frame.

[0012] As a further improvement of the above solution, a convex plate is provided on one side of the shelf close to the second lifting frame and away from the limiting block.

[0013] As a further improvement of the above scheme, a frame is provided on the second lifting frame, a second sliding rod is fixedly installed in the frame, the fifth rack is slidably connected to the second sliding rod, and two third springs are slidably sleeved on the second sliding rod, and the two third springs are both against the fifth rack.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The first gear, the first lifting frame, the first rack, the second lifting frame and the second rack are matched to realize the handover lifting and loading of the real shaft. Compared with the more common single lifting mechanism, when the real shaft is lifted and discharged, it is not necessary to let the lifting mechanism used for discharging return to the initial point to receive the new real shaft, so as to improve the loading efficiency. By arranging a lifting and resetting mechanism between the first lifting frame and the first rack, by arranging a connecting frame inside the second lifting frame, and arranging a switching component for controlling the connection relationship between the second lifting frame and the connecting frame inside the second rack, the second lifting frame and the connecting frame can be switched between a sliding connection and a limited connection, so that the second lifting frame can achieve a larger lifting distance without affecting its normal descent, and will not be restricted by the first lifting frame, thereby improving the applicability of the real shaft feeding device; By arranging a fourth rack on the shelf and a second gear, a third gear, a fifth rack and a limiting block and other structures on the second lifting frame, the material guide frame can not only rise synchronously with the second lifting frame to realize the limitation of the real shaft, so that the real shaft can smoothly rise with the second lifting frame, but also can automatically fall first and be flush with the second lifting frame when the real shaft needs to be discharged (when the second lifting frame descends), thereby releasing the limitation of the real shaft, so that the real shaft can be smoothly discharged along the material guide frame, thereby completing the loading work. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an overall display diagram of the automatic real shaft feeding device of the present invention from a right perspective; Figure 2 This is a left-angle overall display diagram of the automatic feeding device for a real shaft of the present invention; Figure 3 It is a cross-sectional view showing the automatic feeding device for a real shaft of the present invention; Figure 4 It is a planar cross-sectional view of the automatic feeding device for a real shaft according to the present invention; Figure 5 It is a cross-sectional display diagram and a partial enlarged display diagram of the second lifting frame and the connecting frame; Figure 6 It is a planar cross-sectional display diagram and a partial enlarged display diagram of the second lifting frame and the connecting frame at different heights; Figure 7 A display diagram of the first lifting frame, the lifting and resetting mechanism and the first rack; Figure 8 It is a planar cross-sectional display diagram and a partial structure enlarged display diagram of the second lifting frame, the connecting frame, and the material guide frame; Fig. 9 This is a disassembled display diagram of the second lifting rack, the connecting rack and the material guide rack from the front perspective; Fig.10This is a rear-view disassembled display of the second lifting frame, the connecting frame and the material guide frame; Fig.11 This is a diagram showing the assembly of the splicing rack, rails and guide rack; Fig.12 It is a separate display diagram of the second gear, the third gear and the fifth rack.

[0016] Description of main symbols: 1. Shelf; 2. Motor; 3. First gear; 4. First lifting frame; 401. Lifting and resetting mechanism; 5. First rack; 6. Second lifting frame; 601. Fourth rack; 602. Second gear; 603. Third gear; 604. Fifth rack; 605. Limiting block; 606. Protruding plate; 7. Second rack; 701. Slider; 702. Second spring; 703. Block; 704. Slot; 8. Continuation frame; 9. Third rack; 10. Material guide frame; 11. Rail. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Please combine Figures 1 to 12 The real shaft automatic feeding device comprises: a shelf 1, the shelf 1 is composed of two side plates, a shelf arranged between the two side plates and a frame arranged on one side of the two side plates, the shelf 1 is provided with a lifting mechanism and a material guide frame 10 which is lifted and lowered in cooperation with the lifting mechanism, and the material guide frame 10 is slidably installed in the frame of the shelf 1; The lifting mechanism includes a first lifting frame 4 that can be lifted and lowered, and a second lifting frame 6 that is lifted and lowered in the opposite direction to the first lifting frame 4. The tops of the first lifting frame 4 and the second frame 6 are both sloped, so that when the first lifting frame 4 drives the real shaft to rise, the second lifting frame 6 will synchronously fall and receive the lifted real shaft. Slide grooves are provided on the inner walls of both sides of the shelf 1. Slide bars extending into the two slide grooves and slidably connected to the two slide grooves are provided on both sides of the first lifting frame 4, so as to maintain the stability of the lifting of the first lifting frame 4. A lifting reset mechanism 40 is provided on the first lifting frame 4. 1, the lifting and resetting mechanism 401 includes a connecting plate fixedly connected to the first lifting frame 4, two first sliding rods are fixedly installed on the connecting plate, and a sliding cylinder and two first springs are slidably sleeved on the two first sliding rods. The two first springs are respectively located at the two ends of the sliding cylinder and resist it. The two sliding cylinders are fixedly connected to the first rack 5, so that the first rack 5 can move up and down within a certain range after being subjected to force, so that the first lifting frame 4 will not continue to lift under the drive of the first gear 3 after lifting to the limit, and the second lifting frame 6 is provided with a gear that can be connected to it in a sliding manner. A connecting frame 8 is provided for switching between a connection and a limited connection, so as to increase the lifting distance of the second lifting frame 6. A first rack 5 which can be lifted and reset is provided on the first lifting frame 4. A second rack 7 and a third rack 9 are fixedly provided on the second lifting frame 6 and the connecting frame 8, respectively. A switching assembly for controlling the connection between the second lifting frame 6 and the connecting frame 8 is provided in the second rack 7. A first gear 3 which is meshed with the first rack 5 and the second rack 7 and is used to control the switching assembly is rotatably installed on the shelf 1. A motor 2 for driving the first gear 3 to rotate is fixedly installed on the shelf 1. A shaft rod fixedly connected to the first gear 3 is rotatably mounted on the shelf 1, and synchronous wheels are provided on the output shaft of the motor 2 and one end of the shaft rod. A synchronous belt is sleeved on the two synchronous wheels to realize the transmission connection between the motor 2 and the first gear 3. At the same time, a rail 11 is also provided on the frame of the shelf 1, and a rail groove is provided on the connecting frame 8. The rail 11 is in the rail groove and is slidably connected to the rail groove, and a T-shaped through-hole matched with the rail 11 is provided on the top inner wall of the second lifting frame 6, so that the second lifting frame 6 will not be restricted by the rail 11 when descending.

[0019] Through the above technical scheme, the real shaft can be lifted and loaded in a relay manner. Compared with the more common single lifting mechanism, when the real shaft is lifted and discharged, there is no need for the lifting mechanism used for discharge to return to the initial point to take over the new real shaft, thereby improving the loading efficiency.

[0020] The switching assembly includes a cavity groove arranged on the second rack 7, in which a slider 701 is slidably installed, which can be moved and reset and one side of which extends outside the cavity groove and abuts against the first gear 3. A second spring 702 is arranged between the slider 701 and the inner wall of the cavity groove, and a clamping block 703 is arranged on the slider 701. A clamping groove 704 adapted to the clamping block 703 is arranged on the connecting frame 8, so that the first gear 3 drives the second lifting frame 6 to rise through the second rack 7, so that after the first gear 3 is separated from the slider 701, the slider 701 will drive the clamping block 703 to be clamped into the clamping groove 704, so as to complete the second lifting frame 6 and the connecting frame 8; The position of the slot 704 is slightly higher than the block 703, so that after the second lifting frame 6 rises under the drive of the first gear 3 and releases the restriction on the slider 701, the block 703 is just inserted into the slot 704, thereby completing the restriction of the second lifting frame 6 and the connecting frame 8, so that when the first gear 3 is separated from the second lifting frame 6 and meshes with the third rack 9 on the connecting frame 8, it can smoothly continue to drive the second lifting frame 6 to rise through the connecting frame 8, and when the second lifting frame 6 is driven to descend by the reverse rotation, the block 703 and the slot 704 are misaligned, so that the second lifting frame 6 and the connecting frame 8 maintain a sliding connection, so that the second lifting frame 6 can be smoothly descended.

[0021] Through the above technical solution, the second lifting frame 6 and the connecting frame 8 can switch between a sliding connection and a limited connection, so that the second lifting frame 6 can achieve a larger lifting distance without affecting its own normal descent, and will not be restricted by the first lifting frame 4, thereby improving the applicability of the real shaft loading device.

[0022] A fourth rack 601 is provided on the shelf 1, and a second gear 602 meshing with the fourth rack 601 is rotatably installed on one side of the second lifting frame 6, and a third gear 603 connected to the second gear 602 in the same direction is rotatably installed on one side of the second lifting frame 6. Synchronous wheels are provided on the shafts of the second gear 602 and the third gear 603, and the two synchronous wheels are connected by a synchronous belt. A fifth rack 604 for limiting the guide rack 10 and movable and reset is slidably installed on one side of the second lifting frame 6. The guide rack 10 is a stepped structure with a width on the top and a narrowness on the bottom, so that it can be limited by the fifth rack 604. A frame is provided on the second lifting frame 6, and a second slide rod is fixedly installed in the frame. The fifth rack 604 is slidably connected to the second slide rod, and two third springs are provided on the sliding sleeve of the second slide rod, and the two third springs are both connected to the fifth rack 6 04 is offset, the fifth rack 604 is a single-tooth and meshes with the third gear 603, so that when the second lifting frame 6 rises, the second gear 602 and the third gear 603 can rotate clockwise under the action of the fifth rack 604 and continuously drive the fifth rack 604 to continuously limit the guide frame 10, so that the second lifting frame 6 can synchronously drive the guide frame 10 to rise when it rises, so as to ensure that the real shaft is at the top of the second lifting frame 6 and will not fall. When the real shaft is lifted to a height slightly higher than the discharge position, the second lifting frame 6 descends to make the third gear 603 reversely shift the fifth rack 604 to release the limitation on the guide frame 10, so that the guide frame 10 falls and is stuck on the limiting block 605, so that the top of the guide frame 10 is flush with the top of the second lifting frame 6, so that the real shaft can be discharged along the guide frame 10; A limiting block 605 is provided on one side edge of the second lifting frame 6 close to the material guide frame 10, so as to limit the descending distance of the material guide frame 10, so that no matter the second lifting frame 6 drives the material guide frame 10 to any height, when the material guide frame 10 falls, its top can be kept flush with the top of the second lifting frame 6, so that the real shaft at the top of the second lifting frame 6 can smoothly pass through the material guide frame 10 to achieve material discharge; A convex plate 606 is provided on one side of the shelf 1 close to the second lifting frame 6 and away from the limiting block 605, so that even if the second lifting frame 6 drives the limiting block 605 to drop to a position below the convex plate 606, the convex plate 606 can limit the guide rack 10 and allow the guide rack 10 to remain at the initial height.

[0023] Through the above technical scheme, the material guide frame 10 can not only rise synchronously with the second lifting frame 6 to achieve the limitation of the real axis, so that the real axis can smoothly rise with the second lifting frame 6, but also can automatically fall down first and be flush with the second lifting frame 6 when the real axis needs to be discharged (when the second lifting frame 6 descends), thereby releasing the limitation of the real axis and allowing the real axis to be smoothly discharged along the material guide frame 10, thereby completing the loading work.

[0024] The implementation principle of a real shaft automatic feeding device in the embodiment of the present application is: The real shaft rests on the shelf of shelf 1, while the first real shaft is on top of the first lifting frame 4; When the real shaft is being loaded, the motor 2 is started, and the motor 2 drives the first gear 3 to rotate, and the first gear 3 rotates clockwise (refer to the attached Figure 4 ), at this time, the first gear 3 drives the first lifting frame 4 through the first rack 5 to raise the real shaft at the top of the first lifting frame 4, and synchronously drives the second lifting frame 6 to descend through the second rack 7, until the low side of the top of the first lifting frame 4 is aligned with the high side of the top of the second lifting frame 6, at this time the real shaft rolls from the top of the first lifting frame 4 to the top of the second lifting frame 6 (because the two realize one-to-one delivery of the real shaft, the speed at which the second lifting frame 6 receives the real shaft can be accelerated, thereby improving efficiency), at this time, the motor 2 drives the first gear 3 to rotate counterclockwise, so that the first lifting frame 4 descends back to its original position and continues to receive the real shaft, while the second lifting frame 6 drives the real shaft to rise; As the second lifting frame 6 rises, the second gear 602 rises synchronously and rotates clockwise under the action of the fourth rack 601 (see attached Figure 8 ), and synchronously drives the third gear 603 to rotate clockwise through the synchronous wheel and the synchronous belt, and the third gear 603 continuously rotates to continuously move the fifth rack 604, so that the fifth rack 604 always limits the guide frame 10, so that the second lifting frame 6 will synchronously drive the guide frame 10 to rise when it rises, so that the guide frame 10 limits the real axis, so that the real axis can be stably located at the top of the second lifting frame 6; When the second lifting frame 6 drives the real shaft to rise to the discharge height (generally slightly higher than the actual discharge height), the motor 2 drives the first gear 3 to rotate clockwise. At this time, the second gear 602 follows the second lifting frame 6 to descend synchronously and rotates counterclockwise under the action of the fourth rack 601, and drives the third gear 603 to rotate counterclockwise synchronously. The third gear 603 then reverses the fifth rack 604, so that the fifth rack 604 releases the restriction on the guide frame 10, so that the guide frame 10 automatically falls and falls on the limiting block 605 (when the height of the limiting block 605 is higher than the convex plate 606, it falls on the limiting block 605, otherwise the convex plate 606 limits the guide frame 10, so that the lowest position of the guide frame 10 is based on the convex plate 606), so that the top of the guide frame 10 is aligned with the second lifting frame 6, thereby releasing the restriction of the guide frame 10 on the real shaft, so that the real shaft can be discharged along the top of the guide frame 10; At the same time, when the first gear 3 continues to drive the second lifting frame 6 to rise, as the second rack 7 rises, the slider 701 loses the restriction of the first gear 3, and under the push of the second spring 702, it will drive the block 703 to be stuck in the slot 704 on the connecting frame 8, thereby completing the connection limitation between the second lifting frame 6 and the connecting frame 8. The subsequently rising second lifting frame 6 will also drive the connecting frame 8 to rise when it rises, until the third rack 9 on the connecting frame 8 meshes with the first gear 3 and the second lifting frame 6 is driven to rise by the first gear 3 through the connecting frame 8. The first rack 5 on the first lifting frame 4 has the characteristic of being able to rise, fall and reset within a certain range, so that it will not limit the normal rotation of the first gear 3, and at the same time, it can smoothly mesh with the first gear 3 to complete normal lifting when the first gear 3 reverses.

[0025] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A real shaft automatic feeding device, characterized in that: include: A shelf (1), wherein a lifting mechanism and a material guide frame (10) that is raised and lowered in coordination with the lifting mechanism are provided on the shelf (1); The lifting mechanism comprises a first lifting frame (4) that can be raised and lowered, and a second lifting frame (6) that is raised and lowered in the opposite direction to the first lifting frame (4); the tops of the first lifting frame (4) and the second frame (6) are both sloped, so that when the first lifting frame (4) drives the real shaft to rise, the second lifting frame (6) will synchronously descend and receive the raised real shaft; The second lifting frame (6) is provided with a connecting frame (8) which can be switched between a sliding connection and a limited connection with the second lifting frame (6), thereby increasing the lifting distance of the second lifting frame (6); The first lifting frame (4) is provided with a first rack (5) that can be raised and lowered and reset; the second lifting frame (6) and the connecting frame (8) are respectively fixedly provided with a second rack (7) and a third rack (9); the second rack (7) is provided with a switching assembly for controlling the connection between the second lifting frame (6) and the connecting frame (8); and the shelf (1) is rotatably provided with a first gear (3) that meshes with the first rack (5) and the second rack (7) and is used to control the switching assembly.

2. The real shaft automatic feeding device according to claim 1, characterized in that: A motor (2) for driving the first gear (3) to rotate is fixedly mounted on the shelf (1); the motor (2) is in transmission connection with the first gear (3).

3. The real shaft automatic feeding device according to claim 1, characterized in that: The first lifting frame (4) is provided with a lifting and resetting mechanism (401), the lifting and resetting mechanism (401) comprising a connecting plate fixedly connected to the first lifting frame (4), two first sliding rods fixedly mounted on the connecting plate, a sliding cylinder and two first springs are slidably sleeved on the two first sliding rods, the two first springs are respectively located at the two ends of the sliding cylinder and abut against it, and the two sliding cylinders are fixedly connected to the first rack (5), so that the first rack (5) can move up and down within a certain range after being subjected to force.

4. The automatic solid shaft feeding device according to claim 1, characterized in that: The switching assembly comprises a cavity arranged on the second rack (7), a slider (701) is slidably mounted in the cavity and is movable and resettable, one side of which extends outside the cavity and abuts against the first gear (3), a second spring (702) is arranged between the slider (701) and the inner wall of the cavity, a clamping block (703) is arranged on the slider (701), and a clamping groove (704) adapted to the clamping block (703) is arranged on the connecting frame (8).

5. The automatic real shaft feeding device according to claim 4, characterized in that: The position of the slot (704) is slightly higher than the block (703), so that after the second lifting frame (6) rises under the drive of the first gear (3) and releases the restriction on the slider (701), the block (703) is just inserted into the slot (704).

6. The automatic solid shaft feeding device according to claim 1, characterized in that: A fourth rack (601) is provided on the shelf (1); a second gear (602) meshing with the fourth rack (601) is rotatably mounted on one side of the second lifting frame (6); a third gear (603) connected to the second gear (602) in the same direction as the second gear (602) is rotatably mounted on one side of the second lifting frame (6); a fifth rack (604) for limiting the material guide frame (10) and movable and resetting is slidably mounted on one side of the second lifting frame (6); the fifth rack (604) is a single-tooth rack and meshes with the third gear (603).

7. The automatic solid shaft feeding device according to claim 1, characterized in that: A limiting block (605) is provided on one side edge of the second lifting frame (6) close to the material guide frame (10), so as to limit the descending distance of the material guide frame (10).

8. The automatic solid shaft feeding device according to claim 7, characterized in that: A convex plate (606) is provided on one side of the shelf (1) close to the second lifting frame (6) and away from the limiting block (605).

9. The automatic solid shaft feeding device according to claim 6, characterized in that: The second lifting frame (6) is provided with a frame body, a second sliding rod is fixedly installed in the frame body, the fifth rack (604) is slidably connected to the second sliding rod, and two third springs are slidably sleeved on the second sliding rod, and the two third springs are both against the fifth rack (604).

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