A vibration feeding device and a clip automatic placement system using the device

Abstract

The present invention provides a vibrating feeding device and a clip automatic placement system using the device. The vibrating feeding device includes: a horizontal clip feeding track, on which a supporting and limiting structure for supporting the outer conical surface of the clip is provided; a vertical clip feeding track, the track includes a supporting surface for supporting the large-end end face of the clip, and two limiting side walls perpendicular to the supporting surface, and the distance between the two limiting side walls matches the height of the large-end of the clip; a groove is provided at the end of the horizontal clip feeding track, and the length of the groove is less than the length of the clip for the large-end of the clip to fall into the groove. The groove includes a bottom supporting wall for supporting the large-end of the clip and a side supporting wall for supporting the outer conical surface of the clip. The supporting surface is located on the left or right side of the bottom supporting wall. The bottom supporting wall gradually inclines downward to the supporting surface and is connected thereto, so that the clip can slide down along the bottom supporting wall of the groove. A transition guiding wall is provided between the side supporting wall and the limiting side wall, so that the sliding clip can be guided onto the supporting surface to become a vertical posture.

Description

Technical Field

[0001] The present invention relates to a vibrating feeding device and a clip automatic placement system using the device. Background Art

[0002] For buildings such as railways, highways, municipal bridges, river dams, etc., in order to reduce their own weight and save steel, prestressed anchorages are required. The wedge-shaped anchorage has unique advantages such as good self-anchoring performance, no need for a pressure head during tensioning, the prestressed steel strands can be stacked in coils, and can be arbitrarily cut according to the required length during on-site use. Therefore, it is more and more widely used in various prestressed applications.

[0003] The prestressed wedge-shaped anchorage is usually a tapered sleeve structure composed of two to three wedges. In the prior art, the structure of the bisected wedge is as Figure 1 shown. The wedge includes a small head end 1201, a large head end 1202, an outer conical surface 1203, an internal thread 1204, and a cross section 1205. As Figure 2 shown, when the wedge is "lying flat" and the internal thread is facing up, the length of the wedge is L. The internal thread of the wedge is processed in a groove, and the width of the groove is a (when the tapered sleeve is bisected, the width of the groove is the aperture of the internal thread hole). The highest part of the wedge is located at the large head end, and the height of the large head end is h. Since two wedges are combined into a tapered sleeve, the height of the large head end h = (the diameter of the large head end Φ / 2) - 1.

[0004] During the manufacturing process of the wedge, multiple wedges need to be placed on a tray for centralized heat treatment. Currently, it relies on manual labor to pick up the wedges one by one and then place them on the tray. Moreover, in order to improve the space utilization rate of the tray and ensure the placement stability of the wedges, the small head end of the wedge needs to be placed upward. Currently, this manual placement method has a relatively high labor intensity and a relatively low placement efficiency.

[0005] In addition, during the assembly process of the prestressed anchorage, it is necessary to first place two wedges with their notches facing each other to form a tapered sleeve, and then fit an elastic ring onto the card slot at the large diameter end of the tapered sleeve to tighten the tapered sleeve with the elastic ring. During the process of aligning the wedges, it is necessary to manually pick up the wedges one by one and then place them upright on the workbench, which has a large labor intensity and a low placement efficiency.

[0006] Currently, even with the use of vibrating feeding devices such as vibrating bowls to achieve the automatic output of wedges, however, the current vibrating feeding device can only output the wedges lying flat. How to convert the output of the wedges from lying flat to upright is still a difficult problem so far. Summary of the Invention

[0007] The object of the present invention is to provide a vibrating feeding device capable of realizing the upright output of the collets, thereby facilitating the placement of the collets; another object of the present invention is to provide an automatic collet placement system capable of realizing the upright output of the collets, thereby facilitating the placement of the collets.

[0008] To achieve the above object, the vibrating feeding device in the present invention adopts the following technical solutions:

[0009] A vibrating feeding device, comprising:

[0010] A horizontal collet feeding track for conveying horizontal collets under vibration, and a support and limit structure for supporting the outer conical surface of the collet and moving its end forward is provided on the horizontal collet feeding track;

[0011] A vertical collet feeding track for conveying vertical collets under vibration, the vertical collet feeding track includes a support surface for supporting the end face of the large head end of the collet, and two limit side walls perpendicular to the support surface for preventing the vertical collet from rotating, and the distance between the two limit side walls matches the height of the large head end of the collet;

[0012] Wherein, a groove is provided at the end of the horizontal collet feeding track, the length of the groove is less than the length of the collet, so that the large head end of the collet falls into the groove and the collet is in an inclined state. The groove includes a bottom support wall for supporting the large head end of the collet and a side support wall for supporting the outer conical surface of the collet. The support surface is located on the left or right side of the bottom support wall. The bottom support wall gradually inclines downward to the support surface from top to bottom, so that the collet falling into the groove can slide down along the bottom support wall of the groove. The bottom support wall is connected to the support surface, and a transition guiding wall is provided between the side support wall and the limit side wall, so that the sliding collet can be guided onto the support surface and become a vertical posture.

[0013] The beneficial effects of the technical solution of the above-mentioned vibrating feeding device are: a supporting and limiting structure for supporting the outer conical surface of the clip is provided on the horizontal clip feeding track, so that the clip can be fed with the inner thread facing upward and the end facing forward; because the length of the groove at the end of the horizontal clip feeding track is less than the length of the clip, no matter whether it is a clip with the big head end facing forward or the small head end facing forward, its big head end will fall into the groove and be in an inclined state. For example, when the clip with the big head end facing forward is fed, its big head end will fall into the groove as long as it moves to the top of the groove due to unstable center of gravity. For another example, when the clip with the small head end facing forward is fed, The center of gravity of the plate is backward, so the small end of the clip can pass over the groove. At a certain moment, the clip is equivalent to straddling the groove. When the clip moves forward again, the large end of the clip will hang above the groove, and then fall into the groove due to the unstable center of gravity; and the bottom support wall of the groove is inclined and connected to the support surface, so that the clip can slide down along the bottom support wall. Since the spacing between the two limiting side walls matches the height of the large end of the clip, and a transition guide wall is provided between the side support wall and the limiting side wall, the clip can slide down to the support surface and become a vertical posture under the guidance of the transition guide wall.

[0014] The vibrating feeding device of the present invention can automatically output upright clips, thereby facilitating the placement of subsequent clips, reducing manual labor intensity, and improving placement efficiency.

[0015] Furthermore, in order to enhance the guiding effect of the transition guide wall and facilitate the transition of the clip to the support surface, the transition guide wall is arc-shaped.

[0016] Furthermore, in order to prevent the clip from falling off the vertical clip feeding track during the transition to the supporting surface, an upward folded edge is provided on the top of the side wall of the two limiting side walls opposite to the transition guide wall, and the upward folded edge cooperates with the transition guide wall to prevent the large end of the clip from falling off the vertical clip feeding track.

[0017] Furthermore, in order to enhance the guiding effect of the upwardly turned edge, the upwardly turned edge is arc-shaped.

[0018] Furthermore, in order to well position the clip conveyed forward with the small head end, the supporting and limiting structures are provided on both the front and rear sides of the groove.

[0019] To achieve the above purpose, the automatic clip placement system of the present invention adopts the following technical solutions:

[0020] A clip automatic placement system includes a vibrating feeding device and a receiving tray arranged downstream of the vibrating feeding device for receiving and placing the clips, wherein the vibrating feeding device includes:

[0021] Horizontal collet feeding track, used to convey horizontal collets under vibration. A support and limit structure is provided on the horizontal collet feeding track for supporting the outer conical surface of the collet and moving its end forward.

[0022] Vertical collet feeding track, used to convey vertical collets under vibration. The vertical collet feeding track includes a support surface for supporting the end face of the large head end of the collet, and two limit side walls perpendicular to the support surface for preventing the vertical collet from rotating. The distance between the two limit side walls matches the height of the large head end of the collet.

[0023] Among them, a groove is provided at the end of the horizontal collet feeding track. The length of the groove is less than the length of the collet, so that the large head end of the collet can fall into the groove and the collet is in an inclined state. The groove includes a bottom support wall for supporting the large head end of the collet and a side support wall for supporting the outer conical surface of the collet. The support surface is located on the left or right side of the bottom support wall. The bottom support wall gradually inclines downward to the support surface, so that the collets falling into the groove can slide down along the bottom support wall of the groove. The bottom support wall is connected to the support surface, and a transition guiding wall is provided between the side support wall and the limit side wall, so that the sliding collets can be guided onto the support surface and become a vertical posture.

[0024] The beneficial effects of the technical solution of the above collet automatic placement system are as follows: A support and limit structure for supporting the outer conical surface of the collet is provided on the horizontal collet feeding track, realizing the feeding of the collet with the internal thread facing up and the end facing forward; Since the length of the groove at the end of the horizontal collet feeding track is less than the length of the collet, no matter whether the large head end of the collet faces forward or the small head end faces forward, its large head end will fall into the groove and be in an inclined state. For example, when the collet with the large head end facing forward comes in, as long as its large head end moves above the groove, it will fall into the groove due to unstable center of gravity. Another example is when the collet with the small head end facing forward comes in. Since the center of gravity of the collet is at the rear, the small head end of the collet can cross over the groove. At a certain moment, the collet is equivalent to straddling the groove. When the collet moves forward again, the large head end of the collet will overhang above the groove and then fall into the groove due to unstable center of gravity; And the bottom support wall of the groove is inclined and connected to the support surface, so that the collet can slide down along the bottom support wall. Since the distance between the two limit side walls matches the height of the large head end of the collet, and a transition guiding wall is provided between the side support wall and the limit side wall, under the guidance of the transition guiding wall, the collet can slide down onto the support surface and become a vertical posture.

[0025] The vibrating feeding device can automatically output upright collets, which is convenient for subsequent placement of collets, reduces the labor intensity of workers, and can improve the placement efficiency.

[0026] Furthermore, in order to enhance the guiding effect of the transition guide wall and facilitate the transition of the clip to the support surface, the transition guide wall is arc-shaped.

[0027] Furthermore, in order to prevent the clip from falling off the vertical clip feeding track during the transition to the supporting surface, an upward folded edge is provided on the top of the side wall of the two limiting side walls opposite to the transition guide wall, and the upward folded edge cooperates with the transition guide wall to prevent the large end of the clip from falling off the vertical clip feeding track.

[0028] Furthermore, in order to enhance the guiding effect of the upwardly turned edge, the upwardly turned edge is arc-shaped.

[0029] Furthermore, in order to facilitate the assembly of the clips, the vibrating feeding device is a vibrating disk, and there are two vibrating disks. The two vibrating disks are used to output the clips upright and the recesses of the two vibrating disks for outputting the clips are arranged relatively. The discharge port of each vibrating disk is connected to a conveying plate, and the two conveying plates are parallel. Both sides of each conveying plate are provided with a stop surface for limiting the rotation of the clips so that the clips on the two conveying plates maintain a relative state of the recesses. The receiving tray is at the end of the two conveying plates, and the automatic placement system of the clips also includes a pushing mechanism arranged at the end of the two conveying plates, and the pushing mechanism is used to push the clips transported from the conveying plate to the receiving tray, so that the two clips are matched to form a cone sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional structural diagram of a clip divided into two equal parts in the prior art;

[0031] Figure 2 for Figure 1 A three-dimensional structural diagram of another posture of the middle clip;

[0032] Figure 3 It is a front view of the first embodiment of the automatic clip placement system of the present invention;

[0033] Figure 4 It is a top view of the first embodiment of the automatic clip placement system of the present invention;

[0034] Figure 5 It is a side view of the first embodiment of the automatic clip placement system of the present invention;

[0035] Figure 6 It is a structural schematic diagram of a control device of the automatic clip placement system of the present invention;

[0036] Figure 7 for Figures 3 to 5 Partial structural diagram of the middle cross slide;

[0037] Figure 8 for Figures 3 to 5 The overall structure diagram of the middle cross slide;

[0038] Figure 9 Partial structural diagram of the vibrating disc in the first embodiment of the collet automatic placement system in the present invention (collet passing state);

[0039] Figure 10 is Figure 9 Partial three-dimensional structural diagram in (collets not shown);

[0040] Figure 11 is Figure 10 Top view of (collets not shown);

[0041] Figure 12 is Figure 10 State diagram when the collet straddles over the groove in;

[0042] Figure 13 is Figure 10 State diagram when the large end of the collet falls into the groove in;

[0043] Figure 14 is Figure 10 State diagram when the collet transitions from the bottom support wall to the support surface in;

[0044] Figure 15 is Figure 10 State diagram when the collet just transitions onto the bottom support wall in;

[0045] Figure 16 State diagram when the collet completely becomes in a vertical posture;

[0046] Figure 17 is Figure 16 Side view of;

[0047] Figure 18 Partial structural diagram of the vibrating disc in the first embodiment of the collet automatic placement system in the present invention (collet blocking state);

[0048] Figure 19 is Figure 9 and Figure 18 Cooperating structural diagram of an embodiment of the moving baffle and the fixed baffle in;

[0049] Figure 20 is Figure 9 and Figure 18 Cooperating structural diagram of another embodiment of the moving baffle and the fixed baffle in;

[0050] Figure 21 Partial structural diagram of the vibrating disc in the second embodiment of the collet automatic placement system in the present invention (collet passing state);

[0051] Figure 22This is a partial structural diagram of the vibrating bowl in the second embodiment of the automatic clip placement system in the present invention (clip blocking and dropping state);

[0052] Figure 23 This is a partial structural diagram of the third embodiment of the automatic clip placement system in the present invention.

[0053] In the figure: 1. First vibrating bowl; 2. Second vibrating bowl; 3. Third vibrating bowl; 4. Fourth vibrating bowl; 401. Support and limit groove; 402. Blocking plate; 403. Transition beam; 404. Side wall; 405. Fixed baffle; 4051. Inclined surface; 405'. Fixed baffle; 4051'. Inclined surface; 406 Groove; 4061. Bottom support wall; 4062. Side support wall; 4063. Stopping wall; 407. Support wall; 408. Stopping surface; 409. Moving baffle; 4091. Material receiving surface; 409'. Moving baffle; 4091'. Material receiving surface; 410. Upward turning edge; 411. Outer limit side wall; 412. Inner limit side wall; 413. Support surface; 414. Transition guiding wall; 415. Spring; 416. Block; 417. Guiding inclined surface; 5. First feeding trough; 6. Second feeding trough; 7. Third feeding trough; 8. Fourth feeding trough; 9. Control device; 91. Operation panel; 10. Receiving tray; 11. Cross slide; 1101. Y-direction moving mechanism; 1102. Y-direction guiding rod; 1103. Y-direction lead screw; 1104. Y-direction motor mounting bracket; 1105. Y-direction motor; 1106. Base; 1107. Y-direction platform bracket; 1108. Y-direction platform; 1109. X-direction moving mechanism; 1110. X-direction platform; 1111. X-direction motor mounting bracket; 1112. X-direction platform bracket; 1113. X-direction lead screw; 1114. X-direction guiding rod; 1115. X-direction motor; 12. Clip; 1201. Small head end; 1202. Big head end; 1203. Outer conical surface; 1204. Internal thread; 1205. Cross section; 13. First vibrating bowl; 14. Second vibrating bowl; 15. First conveying plate; 16. Second conveying plate; 17. Receiving tray; 18. Thrust oil cylinder; h. Big head end height; L. Clip length; Φ. Big head end diameter; a. Groove width;. Detailed implementation manners

[0054] The first embodiment of the automatic clip placement system in the present invention is as Figures 3 to 5As shown in the figure, the automatic gripper placement system in this embodiment places bisected grippers, and the placed grippers are used for centralized heat treatment. The automatic gripper placement system includes a vibrating feeding device for conveying grippers. The vibrating feeding device in this embodiment is a vibrating bowl, and there are four vibrating bowls in total, namely the first vibrating bowl 1, the second vibrating bowl 2, the third vibrating bowl 3, and the fourth vibrating bowl 4. Among them, the first vibrating bowl 1 and the third vibrating bowl 3 are arranged front and back, and the second vibrating bowl 2 and the fourth vibrating bowl 4 are also arranged front and back. Moreover, the first vibrating bowl 1 and the third vibrating bowl 3 are respectively located on the left side of the second vibrating bowl 2 and the fourth vibrating bowl 4. Through the structural design of the vibrating bowl, the grippers 12 finally output by each vibrating bowl are all in a vertical posture with the small head facing up and the notch facing backward.

[0055] Taking the fourth vibrating bowl 4 as an example, a spiral vibrating feeding track is arranged on the fourth vibrating bowl 4. The vibrating feeding track is used to support the gripper 12 and drive the gripper to move forward and spiral upward under the action of vibration. As Figure 9 shown, it is a partial structure diagram of the fourth vibrating bowl 4. The vibrating feeding track includes a horizontal gripper feeding track and a vertical gripper feeding track. The horizontal gripper feeding track includes a support wall 407 and a side wall 404. In order to form a good support and limit effect on the gripper, a continuous support and limit structure is arranged on the support wall 407. The support and limit structure in this embodiment is a support and limit groove 401 opened on the support wall 407. The support and limit groove 401 is V-shaped, which can support and limit the outer conical surface of the gripper, ensure that the gripper can be stably conveyed forward, and make it not easy for the gripper to be shaken off. And the gripper not supported by the support and limit groove 401 is easy to be shaken off the track and fall back into the vibrating bowl again. Moreover, the extending direction of the support and limit groove 401 is the same as that of the support wall 407, so it can make the large head end or the small head end of the gripper move forward.

[0056] Along the moving direction of the gripper 12, a blocking plate 402, a transition beam 403, a fixed baffle 405, a moving baffle 409, and a groove 406 are sequentially arranged on the horizontal gripper feeding track. Among them, one end of the blocking plate 402 is fixed on the side wall 404 and the other end extends. The blocking plate 402 is horizontally arranged, and the distance from the blocking plate 402 to the support wall 407 is less than the length L of the gripper. Therefore, the vertical gripper cannot pass through the blocking plate 402 and can only be blocked by the blocking plate 402 and fall into the vibrating bowl, as Figure 18 shown, or be blocked and fall into a horizontal posture. The horizontal gripper can pass through the blocking plate 402 and continue to be conveyed forward. In this way, the vertical grippers are removed, or in other words, the horizontal grippers are screened out.

[0057] The transition beam 403 is arranged downstream of the baffle 402. The transition beam 403 is part of the support wall 407, and its width is smaller than the groove width a of the collet groove, which is equivalent to a relatively narrow section of the support wall. Moreover, the length of the transition beam 403 is greater than the collet length L. In this way, when the collet with the internal thread facing upward passes through the transition beam 403, it can be supported and continuously conveyed under the action of the support limit groove 401, as Figure 9 shown. When the collet with the internal thread facing downward passes through the transition beam 403, it initially "rides" on the transition beam 403, but it is very easy to rotate around the transition beam 403 and slide off under the vibration action, as Figure 18 shown. Even if there are individual collets that can stably "ride" on the transition beam 403, when they continue to move forward, they will touch the end face (i.e., the stop surface 408) of the next section of the support wall and fall off. In this way, the collets with the internal thread facing upward are screened out.

[0058] One end of the fixed baffle 405 is fixed on the side wall 404 and the other end extends. The movable baffle 409 is installed on the fixed baffle 405 in a guiding manner in the up and down direction, and the fixed baffle 405 is provided with a guiding hole for the up and down guiding movement of the movable baffle 409. As Figure 19 shown in a cooperation form of the fixed baffle and the movable baffle, the guiding hole on the fixed baffle 405 is a blind hole with the hole opening facing downward. A spring 415 is arranged between the bottom of the guiding hole and the movable baffle 409. One end of the spring 415 is fixed on the bottom of the guiding hole and the other end is fixed on the movable baffle 409. The movable baffle 409 is equivalent to being hoisted on the fixed baffle 405 through the spring 415. When the movable baffle 409 receives an upward acting force, it can compress the spring 415 and move upward.

[0059] The movable baffle 409 includes a material receiving surface 4091 that is inclined in the incoming material direction. And before the incoming material, the distance between the bottom end of the material receiving surface 4091 and the support wall 407 is smaller than the height h of the large head end of the collet. In this way, when the collet with the large head end facing forward comes, due to the higher large head end, it will touch the inclined material receiving surface 4091 and then be guided to slide off the feeding track under the vibration action. At the same time, the distance between the bottom end of the material receiving surface 4091 and the support wall 407 is greater than the height of the small head end of the collet. In this way, when the collet with the small head end facing forward comes, due to the lower small head end, it can drill under the movable baffle 409. And because the cross section of the collet is in an inclined state when the collet lies flat, as the collet continues to move forward, the cross section 1205 of the collet will exert an upward acting force on the movable baffle 409, forcing the movable baffle 409 to compress the spring 415 and move upward. Finally, the collet can pass through the movable baffle 409, and then the movable baffle 409 resets under the reaction force of the spring.

[0060] In addition, the side of the fixed baffle 405 facing the incoming material direction is an inclined surface 4051, the inclined surface 4051 is arranged parallel to the material receiving surface 4091, and there is a set distance between the fixed baffle 405 and the support wall 407. In this way, some clips with the large head end facing forward and the two cross-sections 1205 not at the same height, that is, the clips with the two cross-sections 1205 at different heights and the large head end being overall higher, will directly contact the inclined surface 4051 and be guided down by the inclined surface 4051 without being guided down by the moving baffle 409.

[0061] The setting of the inclined surface 4051 is equivalent to sharing part of the responsibility of the moving baffle 409. In this way, the height of the fixed baffle 405 is not too high, which in turn means that the length of the moving baffle 409 is not too long. Otherwise, if only the moving baffle 409 is relied on to block and drop the clips, the fixed baffle 405 needs to be set higher, and then the moving baffle 409 needs to be set longer. This will cause the weight of the moving baffle 409 to increase, which is not conducive to its upward movement, and even the situation where the clips cannot lift it up may occur.

[0062] As Figure 20 shown is another matching form of the fixed baffle and the moving baffle. The cross-section of the moving baffle 409' is T-shaped, the guiding hole on the fixed baffle 405' is a through hole, and the moving baffle 409' is directly in guiding sliding fit with the fixed baffle 405'. At this time, the moving baffle 409' falls by its own weight after being lifted by the clip. And similarly, the moving baffle 409' is provided with a material receiving surface 4091', and the fixed baffle 405' is provided with an inclined surface 4051'. The principle is the same as above and will not be repeated here. In this way, the clips passing through the fixed baffle and the moving baffle are all in the posture with the internal thread facing up and the small head end facing forward.

[0063] Taking the vibrating disk itself as the reference object, the clip moves forward. Then the vertical clip feeding track is arranged on the right side of the horizontal clip feeding track and is parallel to it. As Figure 10 and Figure 17 shown, the vertical clip feeding track includes a support surface 413 for supporting the end face of the large head end of the clip, and two limiting side walls perpendicular to the support surface 413 for preventing the vertical clip from rotating. The two limiting side walls are the inner limiting side wall 412 and the outer limiting side wall 411 respectively. The distance between the inner limiting side wall 412 and the outer limiting side wall 411 matches the height of the large head end of the clip.

[0064] The groove 406 is arranged at the end of the horizontal clip feeding track. As Figure 11 shown, the groove 406 includes a bottom support wall 4061 for supporting the large head end of the clip and a side support wall 4062 for supporting the outer conical surface of the clip. The length of the groove 406 is less than the length L of the clip 12, and support limiting grooves 401 are arranged on both the front and back sides of the groove 406. Therefore, asFigure 12 As shown, when the clip with the small head end facing forward moves to the position of the groove 406, since the center of gravity of the clip is backward, the small head end of the clip can pass over the groove 406. At a certain moment, the clip spans across the groove, and its large head end and small head end are both supported on the support limit groove 401.

[0065] like Figure 13 As shown, as the clip continues to move forward, its large head end will overhang above the groove, and due to the unstable center of gravity, its large head end will fall into the groove and become tilted, at which time the large head end of the clip is supported by the bottom support wall 4061, and the outer conical surface of the clip is supported by the side support wall 4062. The groove 406 also includes a stop wall 4063 opposite to the side support wall 4062, and the stop wall 4063 stops the large head end of the clip.

[0066] The bottom support wall 4061 gradually tilts from top to bottom toward the support surface 413 and is connected to the support surface 413, so that under the action of its own weight, the clip falling into the groove will slide down along the bottom support wall 4061. Figure 11 As shown, a transition guide wall 414 is provided between the inner limit side wall 412 and the side support wall 4062. The transition guide wall 414 is an arc-shaped wall, which can guide the sliding clip to transition to the support surface 413. Figure 14 As shown, this is equivalent to guiding the clip to turn.

[0067] There is also an arc transition between the outer limit side wall 411 and the stop wall 4063, which helps the clip to transition to the support surface 413. In order to prevent the clip from escaping from the vertical clip feeding track during the transition to the support surface 413, an upwardly folded upper edge 410 is provided at the top of the outer limit side wall 411 opposite to the transition guide wall 414. The upper edge 410 extends toward the groove and is arc-shaped. The upper edge 410 cooperates with the transition guide wall 414 to prevent the large end of the clip from escaping from the vertical clip feeding track during the turning process. Figure 14 and Figure 15 shown.

[0068] As the clip continues to move, since the distance between the inner limiting side wall 412 and the outer limiting side wall 411 matches the height of the large end of the clip, the clip gradually becomes a vertical posture on the support surface 413, and the orientation of the notches is consistent, such as Figure 16 and Figure 17 It should be noted that, through the reasonable design of the vibration plate structure, the notches of the clamps output by the four vibration plates can all face Figure 4 At the rear of the vibrating plates, the structural principles used to prevent the vertical clamps from passing, the internal thread downward clamps from passing, the large head end forward clamps from passing, and the conversion from horizontal to vertical are all the same.

[0069] The above is the feeding principle of the vibration plate. The following is an introduction to the components downstream of the vibration plate.

[0070] A feeding trough is provided at the discharge port of each vibration plate, which are a first feeding trough 5 provided at the discharge port of the first vibration plate 1, a second feeding trough 6 provided at the discharge port of the second vibration plate 2, a third feeding trough 7 provided at the discharge port of the third vibration plate 3, and a fourth feeding trough 8 provided at the discharge port of the fourth vibration plate 4. The four feeding troughs are provided in parallel, adjacent feeding troughs are closely attached, and each feeding trough gradually tilts downward from left to right, so that as the vibration plate continuously vibrates the clip 12 out, each clip 12 automatically moves to the right under the action of the inclined surface.

[0071] The automatic clip placement system also includes a cross slide 11 arranged downstream of the four feeding troughs, and a receiving tray 10 for receiving and placing clips is placed on the top of the cross slide 11. Figure 7 and Figure 8 As shown, the cross slide 11 includes a Y-direction moving mechanism 1101 and an X-direction moving mechanism 1109 arranged above the Y-direction moving mechanism 1101, wherein the X-direction is the left-right direction, the Y-direction is the front-back direction, and the X-direction and the Y-direction are perpendicular to each other.

[0072] The Y-direction moving mechanism 1101 comprises a base 1106, which is a frame structure, and a Y-direction guide rod 1102 and a Y-direction motor mounting frame 1104 are mounted on the base 1106, and the four columns of the base 1106 are of different heights, so that the Y-direction guide rod 1102 gradually tilts downward from the front to the back. A Y-direction motor 1105 and a Y-direction lead screw 1103 connected to the Y-direction motor 1105 are mounted on the Y-direction lead screw 1103 and the Y-direction guide rod 1102, and a Y-direction platform bracket 1107 is mounted on the top of the Y-direction platform bracket 1107. The Y-axis platform bracket 1107 is in sliding cooperation with the Y-axis guide rod 1102 and is threadedly connected with the Y-axis lead screw 1103. Therefore, when the Y-axis motor 1105 drives the Y-axis lead screw 1103 to rotate, under the action of the lead screw nut principle, the Y-axis platform bracket 1107 slides back and forth along the Y-axis guide rod 1102, and then moves the Y-axis platform 1108 back and forth.

[0073] The X-direction moving mechanism 1109 includes an X-direction motor mounting bracket 1111 and an X-direction guide rod 1114 disposed on the Y-direction platform 1108. An X-direction motor 1115 and an X-direction lead screw 1113 drivingly connected to the X-direction motor 1115 are mounted on the X-direction motor mounting bracket 1111. An X-direction platform bracket 1112 is mounted on the X-direction guide rod 1114 and the X-direction lead screw 1113. The top of the X-direction platform bracket 1112 is fixed with an X-direction platform 1110. The X-direction platform bracket 1112 is in guiding and sliding fit with the X-direction guide rod 1114 and in threaded connection with the X-direction lead screw 1113. Therefore, when the X-direction motor 1115 drives the X-direction lead screw 1113 to rotate, under the action of the lead screw nut principle, the X-direction platform bracket 1112 slides left and right along the X-direction guide rod 1114, and then drives the X-direction platform 1110 to move left and right.

[0074] The receiving tray 10 is placed on the X-direction platform 1110. When the X-direction motor 1115 and the Y-direction motor 1105 operate respectively, the receiving tray 10 can receive materials while moving in the left-right and front-back directions respectively. The receiving tray 10 is square, and the feeding directions of the four feeding grooves are all in the left-right direction, that is, the extending directions of the four feeding grooves are all perpendicular to the extending direction of the left side of the receiving tray 10. The receiving tray 10 is always located below the discharge ports of the respective feeding grooves during the material receiving process. And preferably, in order to ensure smooth material falling, the receiving tray 10 is in contact with the discharge ports of the respective feeding grooves, and on the premise that the clamping pieces can meet the conveying requirements, the inclination angles of the respective feeding grooves are made as small as possible.

[0075] The clamping piece automatic placement system further includes a control device 9 for controlling the operation of the first vibrating bowl 1, the second vibrating bowl 2, the third vibrating bowl 3, the fourth vibrating bowl 4, the X-direction servo motor, and the Y-direction servo motor. As Figure 6 shown, the control device 9 includes an operation panel 91. A controller (not shown in the figure) is provided in the control device 9. In this embodiment, cameras are installed near each vibrating bowl, near each feeding groove, and near the cross slide for collecting real-time video information of the clamping piece conveying and transmitting it to the control device 9. Then, according to the real-time operation information, the control device 9 controls the start-stop and rotation directions of the above-mentioned respective components, that is, visual management is adopted.

[0076] The working principle of the clamping piece automatic placement system in the present invention is:

[0077] During use, the control device 9 controls the four vibrating bowls to start. The clamping pieces 12 are output in a vertical posture with the small head facing up and the notch facing backward under the special design structure of the vibrating bowls. The groove widths of the four feeding grooves are not too large to prevent large deviations in the notch orientation of the clamping pieces 12 during the conveying process. As the vibrating bowls continuously output the clamping pieces 12, the clamping pieces 12 move from left to right on the feeding grooves. In order to ensure smooth material falling, it is necessary to control the discharge speeds of the four vibrating bowls and not make them too fast.

[0078] The initial orientation of the receiving tray 10 for receiving parts is that the right side is aligned with the discharge ports of each feeding chute. When the clip 12 is about to fall from the discharge port, the X-axis servo motor is started (rotating forward) to move the receiving tray 10 from left to right as well. In this way, four clips 12 will fall onto the receiving tray 10 simultaneously at one time.

[0079] As the receiving tray 10 continues to move to the right, four rows of clips will be filled on the receiving tray 10. Then, the four vibrating bowls are controlled to stop, causing the clips 12 to pause from falling. Next, the Y-axis servo motor is controlled to operate, moving the receiving tray 10 from front to back, so that the idle area of the receiving tray 10 is aligned with the discharge ports of each feeding chute. Then, the X-axis servo motor is controlled to reverse, moving the receiving tray 10 from right to left to return to the initial receiving orientation. Then, the four vibrating bowls are controlled to start, and at the same time, the X-axis servo motor is rotated forward, and the receiving tray 10 starts to move from left to right again to receive parts. This cycle continues until the receiving tray is filled with clips.

[0080] The cross slide in this embodiment is inclined, causing the receiving tray 10 to be slightly inclined downward from front to back. The significance of this setting is that since the notches of each clip 12 face the rear side, during the part receiving process, once the clip 12 falls unstably and topples over, it will topple backward uniformly. The notch of the latter clip will rest on the outer conical surface of the previous clip. In this way, when the receiving tray is returned to the upright position, under the action of inertia, the clip will naturally tilt forward and become vertical. On the contrary, if the clip topples forward, it is very difficult to fall back to the vertical state and manual straightening is required.

[0081] Embodiment 2 of the clip automatic placement system in the present invention: The difference between this embodiment and Embodiment 1 lies in the local structure of the vibrating bowl. Specifically, the structure for allowing the clips with the small head end facing forward to pass through and blocking the clips with the large head end facing forward is different. As shown in Figure 21 and Figure 22 , a stop block 416 is provided downstream of the transition beam 403 on the horizontal clip feeding track. The stop block 416 is arranged on one side of the support limit groove 401. A guiding inclined surface 417 is provided on the side of the stop block 416 facing the support limit groove 401. The slope of the guiding inclined surface 417 matches the taper of the outer conical surface of the clip, and there is a set distance between the guiding inclined surface 417 and the support limit groove 401, that is, the channel becomes narrower towards the front.

[0082] In this way, when the clip with the large head end facing forward comes in, the large head end quickly touches the guiding inclined surface 417, resulting in a point contact. Since the guiding inclined surface 417 has a slope, as the clip continues to move forward, the guiding inclined surface 417 exerts a squeezing and pushing force on the large head end of the clip. Due to the force point being concentrated on the large head end, the overall force on the clip is uneven, and it will soon deviate from the support limit groove 401 and become skewed until it slides off the vibrating feeding track.

[0083] When the gripper coming in with the small head end facing forward, since the slope of the guiding inclined surface 417 matches the taper of the outer conical surface of the gripper, the gripper does not contact the guiding inclined surface 417 at the beginning. When the gripper moves forward to a certain moment, a line contact is generated between the outer conical surface of the gripper and the guiding inclined surface 417. As the gripper continues to move forward, the guiding inclined surface 417 exerts a squeezing and pushing effect on the outer conical surface of the gripper. Since the force-bearing parts are dispersed in a straight line on the outer conical surface of the gripper, the overall force on the gripper is relatively uniform. At this time, under the combined action of vibration and the limitation of the support limiting groove 401, the gripper will not be extruded out of the support limiting groove 401. Instead, in order to continue moving forward, it continuously adjusts its own posture, producing an effect of rotating around its own axis, changing from lying flat to lying on its side and passing through the stop block. After passing through, due to the action of gravity and vibration, the gripper slowly becomes lying flat again. In this way, the grippers with the small head end facing forward are screened out.

[0084] In the third embodiment of the gripper automatic placement system of the present invention, as Figure 23 shown, the gripper automatic placement system in this embodiment is used for the assembly of prestressed anchors. Therefore, the vibration feeding device in this embodiment is a vibrating bowl, and there are two vibrating bowls, namely the first vibrating bowl 13 and the second vibrating bowl 14. The structures and design principles of the first vibrating bowl 13 and the second vibrating bowl 14 are the same as those of the vibrating bowl in the first embodiment. Both vibrating bowls can output vertical grippers 12, and through the reasonable design of the vibrating bowl structure, the notches of the grippers output by the two vibrating bowls are arranged opposite to each other, which is convenient for subsequent alignment operations.

[0085] As Figure 23 shown, the discharge port of the first vibrating bowl 13 is connected to a first conveying plate 15, and the discharge port of the second vibrating bowl 14 is connected to a second conveying plate 16. The first conveying plate 15 and the second conveying plate 16 are parallel. Stopping surfaces for restricting the rotation of the grippers 12 are provided on both sides of each conveying plate so that the grippers 12 on the two conveying plates maintain the state with the notches opposite to each other, that is, the distance between the two stopping surfaces matches the height of the large head end of the gripper 12.

[0086] A receiving tray 17 is provided at the ends of the two conveying plates. In addition, the gripper automatic placement system further includes a pushing mechanism provided at the ends of the two conveying plates. The pushing mechanism in this embodiment is a pushing oil cylinder 18, and the pushing oil cylinder 18 is used to push the grippers 12 conveyed from the conveying plates onto the receiving tray 17 so that the two grippers 12 are aligned to form a tapered sleeve. Of course, in other embodiments, the pushing mechanism can also be a pushing air cylinder or an electric push rod.

[0087] In this way, the automatic placement of the grippers is realized, saving the labor intensity of workers, having a high placement efficiency, and facilitating the subsequent operation of sleeving the elastic ring.

[0088] In other embodiments of the collet automatic placement system, the placement system can also be used to place trisected collets.

[0089] In other embodiments of the collet automatic placement system, the cross slide can also be horizontal, so that the receiving tray is horizontally arranged for receiving materials.

[0090] In other embodiments of the collet automatic placement system, the shape of the receiving tray can also be rectangular or other suitable shapes.

[0091] In other embodiments of the collet automatic placement system, the collet automatic placement system may not include a control device. In this case, an operator can work beside the machine and control the opening and closing of the machine by manually controlling the switch of the machine. Since the worker only needs to operate the switch button, the labor intensity is still greatly reduced compared with manually placing collets.

[0092] In other embodiments of the collet automatic placement system, the notches of the collets output from the vibrating bowl can also be uniformly facing forward. For example, the vertical collet feeding track can be symmetrically arranged on the other side of the horizontal collet feeding track. At this time, the notches of the output collets face completely opposite directions. Of course, this forward or backward posture of the notch is related to the left-right direction of the collet conveying direction, which can make the collets fall on the receiving tray more stably and reduce the possibility of tipping.

[0093] In other embodiments of the collet automatic placement system, the X-direction moving mechanism can also be arranged below the Y-direction moving mechanism. At this time, when the X-direction moving mechanism moves to make the receiving tray move left and right for receiving materials, the entire Y-direction moving mechanism also moves left and right.

[0094] In other embodiments of the collet automatic placement system, the support limiting groove can be only arranged at the rear side of the groove, and not at the front side of the groove. At this time, the upper surface of the front support wall of the groove supports the outer conical surface of the collet.

[0095] In other embodiments of the collet automatic placement system, the upturned edge can not be arc-shaped but straight.

[0096] In other embodiments of the collet automatic placement system, the upturned edge may not be provided on the outer limiting side wall. At this time, the outer limiting side wall itself can be used to limit the large end of the collet.

[0097] In other embodiments of the collet automatic placement system, the transition guiding wall can not be arc-shaped but straight, that is, the side support wall and the inner limiting side wall are transitioned through an inclined surface; of course, the stop wall and the outer limiting side wall can also be transitioned through an inclined surface.

[0098] In other embodiments of the collet automatic placement system, the vertical collet feeding track can be perpendicular to the horizontal collet feeding track. The extending direction of the supporting surface of the vertical collet feeding track is perpendicular to the supporting limiting groove. The supporting surface can be located on the left side or the right side of the groove. At this time, when the collet slides off the bottom supporting wall of the groove, it can directly slide onto the supporting surface of the vertical collet feeding track without turning. Of course, the width of the groove is greater than the width of the supporting surface. Therefore, a transition guiding wall needs to be provided between the side supporting wall that supports the outer conical surface of the collet and the limiting side wall of the vertical collet feeding track.

[0099] In other embodiments of the collet automatic placement system, the supporting and limiting structure provided on the horizontal collet feeding track may not be the supporting and limiting groove opened on the track, but two rows of support plates fixedly arranged on the track at intervals. A limiting groove is formed between the two rows of support plates, and the collets are supported and limited on the tops of the two rows of support plates; or the supporting and limiting structure is a plurality of support columns arranged at intervals. There are two columns of support columns, and the collets are supported and limited on the tops of the two columns of support columns.

[0100] In other embodiments of the collet automatic placement system, the side of the fixed baffle facing the incoming material direction may not be an inclined surface. The fixed baffle can be set higher, and the collets with the large head end facing forward cannot touch the fixed baffle, and only the moving baffle guides the collets with the large head end facing forward to fall.

[0101] In other embodiments of the collet automatic placement system, only a blocking plate and a transition beam can be provided on the horizontal collet feeding track, without providing a fixed baffle and a moving baffle. At this time, among the collets output by the horizontal collet feeding track, there are those with the small head end facing forward and those with the large head end facing forward. Those with the small head end facing forward are the same as in Embodiment 1. When the large head end of the collet with the large head end facing forward moves above the groove, it will fall into the groove due to unstable center of gravity. Similarly, it will slide down along the bottom supporting wall of the groove to the supporting surface of the horizontal collet feeding track. The difference is that among the collets finally output by the vibrating bowl, some have the notch facing backward and some have the notch facing forward. It is still possible to place the collets in a vertical posture on the receiving tray, but the orientation of the notch is disordered.

[0102] In other embodiments of the collet automatic placement system, all four feeding grooves can also adopt linear vibrating feeders, so that the collets can move to the right by the vibration effect in the feeding grooves.

[0103] In other embodiments of the collet automatic placement system, the feeding groove can also be omitted by appropriately extending the discharge port of the vibrating bowl, and the receiving tray is directly arranged at the discharge port of the vibrating bowl.

[0104] In other embodiments of the collet automatic placement system, the vibrating feeding device may not be a disk-torsion vibrating bowl, but a linear vibrating feeder. At this time, both the horizontal collet feeding track and the vertical collet feeding track are arranged on the linear vibrating feeder, that is, a series of components such as the support and limit structure, the baffle plate, the transition beam, the moving baffle or the stopper are arranged on the linear vibrating feeder. At this time, a hopper for storing collets needs to be arranged above the linear vibrating feeder, and the collets fall on the linear vibrating feeder after being output from the hopper, or a manipulator is arranged beside the linear vibrating feeder for feeding.

[0105] In other embodiments of the collet automatic placement system, there may also be two, three, five or more vibrating feeding devices, and of course there may also be only one.

[0106] Embodiment of the vibrating feeding device in the present invention: The specific structure of the vibrating feeding device is the same as that of the vibrating feeding device in the above-mentioned collet automatic placement system, and will not be repeated here.

Claims

1. A vibrating feeding device, characterized in that, it comprises: A horizontal clip feeding track for conveying horizontal clips under vibration. The horizontal clip feeding track is provided with a support and limit structure for supporting the outer conical surface of the clip and moving its end forward; A vertical clip feeding track for conveying vertical clips under vibration. The vertical clip feeding track includes a support surface for supporting the end face of the large head end of the clip, and two limit side walls perpendicular to the support surface for preventing the vertical clip from rotating. The distance between the two limit side walls matches the height of the large head end of the clip; Wherein, a groove is provided at the end of the horizontal clip feeding track. The length of the groove is less than the length of the clip, so that the large head end of the clip can fall into the groove and make the clip in an inclined state. The groove includes a bottom support wall for supporting the large head end of the clip and a side support wall for supporting the outer conical surface of the clip. The support surface is located on the left or right side of the bottom support wall. The bottom support wall gradually inclines downward to the support surface, so that the clip falling into the groove can slide along the bottom support wall of the groove. The bottom support wall is connected to the support surface, and a transition guiding wall is provided between the side support wall and the limit side wall, so that the sliding clip can be guided onto the support surface and become a vertical posture.

2. The vibrating feeding device according to claim 1, characterized in that, the transition guiding wall is arc-shaped.

3. The vibrating feeding device according to claim 1 or 2, characterized in that, On the top of the side wall of the two limit side walls that is opposite to the transition guiding wall, there is an upwardly turned-up edge. The turned-up edge and the transition guiding wall cooperate to prevent the large head end of the clip from detaching from the vertical clip feeding track.

4. The vibrating feeding device according to claim 3, characterized in that, the turned-up edge is arc-shaped.

5. The vibrating feeding device according to claim 1 or 2, characterized in that, The support and limit structure is provided on both the front and rear sides of the groove.

6. An automatic clip placement system, characterized in that, it comprises a vibrating feeding device and a receiving tray for receiving and placing clips arranged downstream of the vibrating feeding device. The vibrating feeding device includes: A horizontal clip feeding track for conveying horizontal clips under vibration. The horizontal clip feeding track is provided with a support and limit structure for supporting the outer conical surface of the clip and moving its end forward; A vertical clip feeding track for conveying vertical clips under vibration. The vertical clip feeding track includes a support surface for supporting the end face of the large head end of the clip, and two limit side walls perpendicular to the support surface for preventing the vertical clip from rotating. The distance between the two limit side walls matches the height of the large head end of the clip; Among them, a groove is provided at the end of the horizontal clip feeding track, and the length of the groove is smaller than the length of the clip, so that the large end of the clip can fall into the groove and make the clip inclined. The groove includes a bottom support wall for supporting the large end of the clip and a side support wall for supporting the outer cone surface of the clip. The support surface is located on the left or right side of the bottom support wall, and the bottom support wall gradually inclines toward the support surface from top to bottom, so that the clip falling into the groove can slide down along the bottom support wall of the groove. The bottom support wall is connected to the support surface, and a transition guide wall is provided between the side support wall and the limiting side wall, so that the sliding clip can be guided to the support surface and become a vertical posture.

7. The automatic clip placement system according to claim 6, It is characterized in that The transition guide wall is arc-shaped.

8. The automatic clip placement system according to claim 6 or 7, It is characterized in that The top of the side wall of the two limiting side walls opposite to the transition guide wall is provided with an upwardly folded upper edge, and the upper edge cooperates with the transition guide wall to prevent the large end of the clip from escaping from the vertical clip feeding track.

9. The automatic clip placement system according to claim 8, It is characterized in that The upward turning edge is arc-shaped.

10. The automatic clip placement system according to claim 6 or 7, It is characterized in that The vibrating feeding device is a vibrating plate, and there are two vibrating plates. The two vibrating plates are used to make the clips output upright, and the notches of the two vibrating plates for outputting the clips are arranged relatively. The discharge port of each vibrating plate is connected to a conveying plate, and the two conveying plates are parallel. Both sides of each conveying plate are provided with a stop surface for limiting the rotation of the clips so that the clips on the two conveying plates maintain a relative state of the notches. The receiving plate is at the end of the two conveying plates, and the automatic clip placement system also includes a pushing mechanism arranged at the end of the two conveying plates, and the pushing mechanism is used to push the clips transported from the conveying plate to the receiving plate, so that the two clips are matched to form a cone sleeve.

Images