Rotary positioning device for LED lamp lens feeder

Abstract

The utility model relates to a rotary positioning device for an LED (light-emitting diode) lamp lens feeder, which comprises a main substrate with a plurality of workpiece limiting grooves, a workpiece positioning plate is mounted at the tail ends of the workpiece limiting grooves of the main substrate, the workpiece positioning plate is provided with arc-shaped limiting parts extending into the tail ends of the workpiece limiting grooves, and the arc-shaped limiting parts are arranged on the main substrate. A first positioning protruding column and a second positioning protruding column which are arranged in a spaced mode and protrude inwards in the radial direction are formed on the inner wall of the arc-shaped limiting part, and the high position of the first positioning protruding column is higher than that of the second positioning protruding column. According to the utility model, the inner wall of the arc-shaped limiting part is provided with a high positioning protruding column and a low positioning protruding column which are arranged at an interval, and the two positioning protruding columns can ensure that a circular LED lamp lens is located at a centered position, namely is aligned with the center of the jacking shaft below, so that the jacking shaft can jack up a workpiece neatly and smoothly without inclining or deviating; the rotary positioning device disclosed by the utility model is higher in positioning precision, more accurate and more efficient, can avoid the phenomena of top deviation and the like of a workpiece, and is convenient for subsequent procedures.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical device technical field, especially a kind of rotating positioning device for LED lamp lens feeder. BACKGROUND

[0002] Vibration feeding is a widely used feeding mode in many fields. In some precision machining fields, in addition to vibration feeding, it is also necessary to ensure that the material is transferred at a specific angle or position. Before using a mechanical hand or an adsorption device to transfer the material, the material delivered by the vibration feeder needs to be adjusted to the required angle before being transferred. Therefore, in the prior art, the main way to adjust the angle position is manual operation by a jig. This way is low in efficiency and high in cost. For small-sized, circular and similar products with protruding parts on the outer wall and recessed holes on the bottom, such as LED lenses, it is more difficult and less efficient to manually adjust the angle.

[0003] Therefore, the present inventor has developed a rotating positioning device for a vibration feeder (Chinese utility model patent No. CN201922272431.4). During positioning, a set of shafts lift the LED lens, and then the shafts drive the LED lens to rotate by a motor. After the positioning protrusions on the jig are in contact with the protruding parts on the LED lens, the shafts are lowered to disengage the LED lens, so that the LED lens is placed at the end of the trough at the adjusted angle and is transferred by an external mechanical hand suction cup, achieving the same-angle transfer of multiple LED lenses.

[0004] However, in the above-mentioned patent, since the sidewall of the circular LED lens has three protruding parts, and the arc-shaped positioning part on the positioning plate of the jig has only one positioning protrusion, and the width of the material groove of the track plate is larger than the diameter of the LED lens, when the LED lens is pushed to the positioning position, the center of the LED lens cannot be accurately aligned with the center of the lower shaft. This will cause the shaft to be tilted when lifting the LED lens, resulting in failure of subsequent rotation positioning. Moreover, the LED lens is only located at the top of the shaft by its own weight, and may not be synchronized with the shaft during rotation, which may cause slipping and inaccurate positioning. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims to overcome the shortcomings of the prior art and provide a rotating positioning device for an LED lens feeder, which solves the problem of low positioning accuracy caused by misalignment between the LED lens and the lifting shaft during positioning and rotation slipping of the existing positioning device.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A rotating positioning device for LED lamp lens feeder is arranged at the end of the discharge slot of the vibrating feeder, which comprises a main base plate with a plurality of workpiece limiting grooves, the workpiece limiting grooves are arranged at intervals and the front end thereof is horizontally connected with the discharge slot, a workpiece positioning plate is installed at the end of the workpiece limiting groove of the main base plate, the workpiece positioning plate is provided with an arc-shaped limiting portion extending into the end of the workpiece limiting groove, and two first and second positioning protruding columns arranged at intervals and protruding radially inward are formed on the inner wall of the arc-shaped limiting portion, and the height of the first positioning protruding column is higher than that of the second positioning protruding column.

[0008] An axial hole longitudinally penetrating the main base plate is further arranged at the end of the bottom surface of each workpiece limiting groove.

[0009] A vertical mounting plate is arranged below the main base plate, a support plate longitudinally liftable is arranged on one side of the vertical mounting plate, motors corresponding in number and position to the workpiece limiting grooves of the upper main base plate are installed on the support plate, the output end of each motor is connected with a vertical top shaft, each top shaft is coaxially arranged with the axial hole and can penetrate the axial hole.

[0010] Further, each top shaft has an axial hollow section inside, the axial hollow section penetrates the top end of the top shaft upward, the top end of the top shaft has a circular truncated cone-shaped end portion corresponding to the concave portion of the lower surface of the LED lamp lens, the circular truncated cone-shaped end portion has a vacuum suction port communicating with the axial hollow section inside the top shaft, a vacuum pipeline plate fixedly connected with the support plate is further arranged above the support plate, an evacuation pipeline is arranged inside the vacuum pipeline plate, each top shaft penetrates the vacuum pipeline plate along the longitudinal direction and can be sealedly rotated relative to the vacuum pipeline plate, an evacuation hole communicating the internal axial hollow section with the evacuation pipeline is arranged on each top shaft, and a plurality of evacuation interfaces connected with the internal evacuation pipeline are arranged on the outer wall of the vacuum pipeline plate.

[0011] The support plate is connected with a cylinder and a set of longitudinal sliding rails arranged on the same side of the vertical mounting plate, that is, the support plate, the motors connected with the support plate, the vacuum pipeline plate and the top shaft are driven by the cylinder to synchronously lift along the longitudinal sliding rails in the longitudinal direction.

[0012] A positioning sleeve is further arranged around each top shaft between the lower surface of the main base plate and the vacuum pipeline plate, and the length of the positioning sleeve is less than the distance between the upper surface of the vacuum pipeline plate and the lower surface of the main base plate.

[0013] A side plate is further arranged on each side of the main base plate, a poking shaft striding over the workpiece limiting grooves is arranged between the upper ends of the side plates, a plurality of poking columns extending into the workpiece limiting grooves are arranged on the outer wall of the poking shaft, one end of the poking shaft penetrates the side plate and is connected with a gear, and a rack meshing with the gear and a rack driving cylinder driving the rack to reciprocate are further arranged on the outer side of the side plate.

[0014] In this invention, the inner wall of the arc-shaped limiting part is provided with two positioning protrusions, one higher and one lower, arranged at intervals. These two protrusions ensure that the circular LED lens is centered, that is, aligned with the center of the lower top shaft. This ensures that the top shaft neatly and smoothly lifts the workpiece without tilting or deviating. Simultaneously, the higher and lower positioning protrusions ensure that even if one positioning protrusion on the workpiece is between the two protrusions, it can still rotate out, allowing the other positioning protrusion to be positioned with the first positioning protrusion. Therefore, the rotary positioning device of this invention has higher positioning accuracy, is more precise, and more efficient, avoiding workpiece misalignment and facilitating subsequent processes. Attached Figure Description

[0015] Figure 1 , Figure 2 This is a three-dimensional structural diagram of the present invention from different angles;

[0016] Figure 3 This is a top view of the present invention;

[0017] Figure 4 , Figure 5 They are Figure 1 At point A in the middle Figure 3 A magnified view of a section at point B in the middle;

[0018] Figure 6 This is a cross-sectional structural diagram of the top shaft, vacuum pipe plate, and main base plate in this utility model;

[0019] Figure 7 This is a top view of the vacuum pipes inside the vacuum pipe plate;

[0020] Figure 8 , Figure 9 These are front and rear view schematic diagrams of this utility model. Detailed Implementation

[0021] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0022] like Figures 1-5The embodiment is a rotating positioning device for LED lamp lens feeder, which is arranged at the end of the discharge slot of the vibrating feeder (the vibrating feeder and the discharge slot are omitted in the figure). The rotating positioning device comprises a main base plate 1 provided with a plurality of workpiece limiting grooves 11. The workpiece limiting grooves 11 are arranged at intervals and horizontally connected to the discharge slot at the front end. A workpiece positioning plate 2 is installed at the end of the workpiece limiting groove 11 of the main base plate 1. The inner side of the workpiece positioning plate 2 is provided with an arc-shaped limiting part 21 protruding into the end of the workpiece limiting groove 11. The radius of the arc surface of the arc-shaped limiting part 21 is equivalent to the radius of the transmitted LED lamp lens 3. Two first positioning protruding columns 211 and second positioning protruding columns 212 are formed on the inner wall of the arc-shaped limiting part 21 and arranged at intervals. The height of the first positioning protruding column 211 is higher than that of the second positioning protruding column 212.

[0023] A shaft hole 101 longitudinally penetrating the main base plate 1 is arranged at the end of the bottom surface of each workpiece limiting groove 11. The center of the shaft hole 101 corresponds to the center position of the workpiece when the outer wall of the circular workpiece is in contact with the outer wall of the two positioning protruding columns of the arc-shaped limiting part 21, i.e. on the same longitudinal axis.

[0024] A vertical mounting plate 4 is arranged below the main base plate 1. A support plate 41 vertically movable is arranged on one side of the vertical mounting plate 4. A motor 5 corresponding in number and position to the workpiece limiting grooves 11 of the main base plate 1 above is installed on the support plate 41. A longitudinal top shaft 6 is connected to the output end of each motor 5. Each top shaft 6 is coaxially arranged with the shaft hole 101 and can pass through the shaft hole 101.

[0025] Further, in combination with Figure 6 , Figure 7As shown, each of the top shafts 6 has an axial hollow section 60 inside, and the axial hollow section 60 penetrates the top end of the top shaft 6 upward, the top end of the top shaft 6 has a circular truncated cone shaped end portion 61 corresponding to the lower surface recess of the LED lamp lens 3, the middle of the circular truncated cone shaped end portion 61 has a vacuum suction port 62 communicating with the axial hollow section 60 inside the top shaft 6; above the support plate 41, a vacuum pipeline plate 42 fixedly connected with the support plate 41 is further arranged, the vacuum pipeline plate 42 is internally provided with a vacuum pipeline 420, each of the top shafts 6 penetrates the vacuum pipeline plate 42 along the longitudinal direction and can be sealingly rotated relative to the vacuum pipeline plate 42, and each of the top shafts 6 is respectively provided with a gas suction hole 63 communicating the internal axial hollow section 60 with the vacuum pipeline 420, the gas suction hole 63 penetrates the top shaft 6 along the radial direction, the hole diameter of the vacuum pipeline 420 is comparable to the diameter of the top shaft 6, so that the gas suction hole 63 can communicate with the vacuum pipeline 420 no matter the top shaft 6 is rotated to any angle, the gas suction is ensured, the outer wall of the vacuum pipeline plate 42 is provided with a plurality of vacuum connection interfaces 421 connected with the internal vacuum pipeline 420; that is, the external vacuum pipeline and vacuum pump are connected through the vacuum connection interfaces 421, when the top shaft 6 is jacked up with the support plate 41, the vacuum is started, through the vacuum pipeline 420 inside the vacuum pipeline plate 42, the gas suction hole 63 on the top shaft 6, the axial hollow section 60 and the vacuum suction port 62 on the top of the top shaft 6, a certain suction force is generated on the jacked up LED lamp lens 3, the swing phenomenon of the LED lamp lens 3 when rotating with the top shaft 6 can be avoided, and the top shaft idling after the workpiece is rotated in place is also not affected; after being rotated in place, the gas suction is stopped and the top shaft 6 is lowered, so that the workpiece can be separated from the top shaft 6 and kept at the correct angle position, the purpose of rotation positioning is achieved. The lower end of the top shaft 6 is provided with a connecting portion connected with the output shaft of the motor 5, in the embodiment, the connecting portion is a hole opened upward along the axial direction from the bottom of the top shaft 6, and then opened along the radial direction, and is locked and connected with the radial hole on the output shaft of the motor through a screw and a nut (omitted in the figure).

[0026] In this embodiment, the high position of the first positioning protrusion 211 is flush with the upper end surface of the arc-shaped limiting portion 21, and the high position of the second positioning protrusion 212 is at the middle of the height of the arc-shaped limiting portion 21, i.e. lower than the upper end surface thereof. When angle positioning is performed, the top shaft 6 of the lower surface of the LED lamp lens 3 lifts the LED lamp lens 3, so that the position of the protruding portion 31 of the outer wall of the LED lamp lens 3 is higher than the high position of the second positioning protrusion 212 and lower than the high position of the first positioning protrusion 211. When rotating under the driving of the top shaft 6, the protruding portion 31 between the first positioning protrusion 211 and the second positioning protrusion 212 is not blocked by the second positioning protrusion 212, while the protruding portion 31 outside the first positioning protrusion 211 rotates to the outside of the first positioning protrusion 211 along with the top shaft 6 and is in contact with the first positioning protrusion 211, so that the LED lamp lens 3 stops rotating and is rotated to the position, so that positioning is completed. Then the top shaft 6 is lowered to be separated from the workpiece. At this time, each workpiece is in a positioning position where the protruding portion 31 is in contact with the first positioning protrusion 211, and then the workpiece is taken away together through an external mechanical hand or a suction cup.

[0027] Further, as shown in Figure 8 、 Figure 9 , the support plate 41 is connected with the cylinder 43 and a set of longitudinal sliding rails 44 installed on the same side of the vertical mounting plate 4, i.e. the support plate 41 and the motor 5, the vacuum pipeline plate 42 and the top shaft 6 connected with the support plate 41 are driven by the cylinder 43 to be synchronously lifted in the longitudinal direction along the longitudinal sliding rails 44, so as to complete the lifting and lowering of the workpiece by the top shaft 6.

[0028] A positioning sleeve 64 is further sleeved around the periphery of the top shaft 6 between the lower surface of the main base plate 1 and the vacuum pipeline plate 42. The length of the positioning sleeve 64 is less than the distance between the upper surface of the vacuum pipeline plate 42 and the lower surface of the main base plate 1. The distance by which the vacuum pipeline plate 42 and the support plate 41 are lifted by the cylinder 43 is limited by the positioning sleeve 64, so as to control the lifting height of the top shaft 6. The workpiece is lifted by the top shaft 6 to a position where the protruding portion 31 of the LED lamp lens 3 is slightly higher than the height of the second positioning protrusion 212, so as to avoid excessive lifting and make the protruding portion of the workpiece higher than the first positioning protrusion and unable to be positioned.

[0029] The both sides of the main substrate 1 are also respectively provided with a side plate 12, the upper ends of the side plate 12 are provided with a poking shaft 13 which crosses the workpiece limiting groove 11, the outer wall of the poking shaft 13 is provided with a plurality of poking columns 14 which can extend into the workpiece limiting groove 11; one end of the poking shaft 13 penetrates through the side plate 12 and is connected with a gear 15, and the outer side of the side plate 12 is also provided with a rack 16 which is engaged with the gear 15 and a rack driving cylinder 17 which drives the rack 16 to reciprocate. That is, the rack driving cylinder 17 drives the rack 16 to move so as to drive the gear 15 to rotate, and then drives the poking shaft 13 to rotate, when the poking shaft 13 rotates, the poking columns 14 are swung, so that the workpiece located in the middle part of the workpiece limiting groove 11 is poked away, the workpiece is spaced from the workpiece at the end by a distance, and the problem that the convex parts of the two workpieces interfere with each other when the workpiece at the end is rotated and positioned is avoided.

[0030] In summary, in the utility model, the inner wall of the arc-shaped limiting part is provided with two positioning protruding columns which are arranged at intervals and have different heights, the two positioning protruding columns can ensure that the circular LED lamp lens is in the centered position, that is, aligned with the center of the lower top shaft, and ensure that the top shaft is aligned and smoothly lifts the workpiece without inclination and deviation, and the positioning protruding columns with different heights ensure that even if one positioning protruding part is between the two positioning protruding columns, the workpiece can be rotated out so as to be positioned with the first positioning protruding column by using the other positioning protruding part. Therefore, the positioning precision of the rotating positioning device is higher, more accurate and more efficient, the workpiece can be prevented from being deviated by lifting, and the subsequent process is facilitated.

Claims

1. A rotary positioning device for an LED lamp lens feeder, disposed at the end of the discharge trough of a vibrating feeder, comprising a main base plate having a plurality of workpiece limiting grooves, the workpiece limiting grooves being spaced apart and their front ends being horizontally aligned with the discharge trough, and a workpiece positioning plate being installed at the end of the workpiece limiting grooves on the main base plate, characterized in that: The workpiece positioning plate has an arc-shaped limiting part extending into the end of the workpiece limiting groove, and two first and second positioning protruding columns are arranged on the inner wall of the arc-shaped limiting part and protrude radially inward, and the height of the first positioning protruding column is higher than that of the second positioning protruding column; An axial hole longitudinally penetrating the main base plate is arranged at the end of the bottom surface of each workpiece limiting groove; A vertical mounting plate is arranged below the main base plate, a support plate longitudinally liftable is arranged on one side of the vertical mounting plate, motors corresponding in number and position to the workpiece limiting grooves of the main base plate are mounted on the support plate, the output ends of each motor are connected with a vertical top shaft, each top shaft is coaxially arranged with the axial hole and can penetrate the axial hole.

2. The rotational positioning device for LED lamp lens feeders of claim 1, wherein: Each top shaft has an axial hollow section, the axial hollow section penetrates the top end of the top shaft, the top end of the top shaft has a circular truncated cone-shaped end part corresponding to the concave part of the lower surface of the LED lamp lens, the circular truncated cone-shaped end part has a vacuum suction port communicating with the axial hollow section in the top shaft, a vacuum pipeline plate fixedly connected with the support plate is arranged above the support plate, an evacuation pipeline is arranged in the vacuum pipeline plate, each top shaft penetrates the vacuum pipeline plate in the longitudinal direction and can be sealedly rotated relative to the vacuum pipeline plate, an evacuation hole communicating the internal axial hollow section with the evacuation pipeline is arranged on each top shaft, and a plurality of evacuation interfaces connected with the internal evacuation pipeline are arranged on the outer wall of the vacuum pipeline plate.

3. The rotational positioning device for LED lamp lens feeders of claim 2, wherein: The support plate is connected with a cylinder and a set of longitudinal sliding rails mounted on the same side of the vertical mounting plate, that is, the support plate, the motors, the vacuum pipeline plate and the top shafts are driven by the cylinder to synchronously lift along the longitudinal sliding rails in the longitudinal direction.

4. The rotational positioning device for LED lamp lens feeders of claim 3, wherein: A positioning sleeve is further arranged around each top shaft between the lower surface of the main base plate and the vacuum pipeline plate, and the length of the positioning sleeve is less than the distance between the upper surface of the vacuum pipeline plate and the lower surface of the main base plate.

5. The rotational positioning device for LED lamp lens feeders of claim 1, wherein: A side plate is further mounted on each side of the main base plate, a poking shaft is mounted between the upper ends of the side plates and crosses above the workpiece limiting grooves, a plurality of poking columns extending into the workpiece limiting grooves are arranged on the outer wall of the poking shaft, one end of the poking shaft penetrates the side plate and is connected with a gear, and a rack engaged with the gear and a rack driving cylinder driving the rack to reciprocate are further mounted on the outer side of the side plate.

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