Machining feeding assembly for precise mechanical element manufacturing

Abstract

The invention discloses a machining feeding assembly for precise mechanical element manufacturing, and relates to the technical field of mechanical element machining. A machining feeding assembly for precise mechanical element manufacturing comprises a bottom plate mechanism, and the bottom plate mechanism comprises a bottom plate; a bottom bin mechanism is arranged on the bottom plate mechanism and comprises a bottom bin fixedly connected with a bottom plate, and notches are formed in the middles of the upper sides of the two end walls of the bottom bin correspondingly. A strip conveying mechanism is erected on the bottom bin mechanism and comprises a conveying strip fixedly connected with two notches in an embedded mode, the section of the conveying strip is triangular, an arc groove is formed in the upper side of the conveying strip, the tail end of the conveying strip is fixedly connected with a feeding strip, and the section of the tail end of the feeding strip is gradually reduced. The head end of the conveying strip is provided with a pushing part used for moving an element. A camera mechanism for detecting elements is arranged at the tail end of the conveying strip; the head side of the camera shooting mechanism is provided with a pressing mechanism used for correcting an element. And a screening mechanism corresponding to the pushing part is arranged at the head end of the conveying strip, and the element position correcting accuracy is improved through three times of position correcting.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical element processing, in particular to a processing and feeding assembly for precision mechanical element manufacturing. BACKGROUND

[0002] With the upgrading of technology in the fields of electronic information, medical equipment, aerospace, etc., precision mechanical elements are developing towards miniaturization and high precision. The demand for micro shaft parts (such as micro motor shafts and medical catheter shafts) with specifications of 0.5-5mm is increasing rapidly. The processing precision of such parts is extremely high, and the subsequent processes (such as micron-level grinding, laser grooving, and precision assembly) require strict consistency of the positioning reference of the parts. The coaxiality deviation between the part axis and the main shaft of the processing equipment should be ≤±0.005mm, and the attitude deviation of the end feature (such as chamfer and keyway) should be ≤±0.05°, otherwise it will directly lead to processing size out-of-tolerance, feature position deviation, and even cause equipment tool collision failure.

[0003] As a front-end core unit of precision machining, the function of the feeding assembly is to stably transport the parts to be machined to the processing station in a predetermined attitude and position. The precision of the feeding assembly directly determines the yield and efficiency of the subsequent processes. The current industry demand for feeding of micro shaft parts focuses on controllable attitude deviation and high-speed processing matching of feeding rhythm.

[0004] Current feeding technologies for micro shaft parts mainly include vibration disc feeding technology, mechanical clamping type feeding technology, and single visual guidance feeding technology. However, they all have significant limitations in attitude control and cannot meet the high-precision machining requirements. The parts are prone to rolling and deviation during the vibration process of the vibration disc, and the track guidance can only control the general alignment of the axis and the conveying direction. The mechanical clamping structure relies only on passive constraints of mechanical structures and cannot detect the attitude deviation of the parts in real time, nor can it be actively adjusted. The single visual guidance feeding technology cannot match high-speed processing because the parts have no directional constraints before entering the visual detection area. Therefore, there is an urgent need for a processing and feeding assembly for precision mechanical element manufacturing to solve the above problems. SUMMARY

[0005] The present application aims to provide a processing and feeding assembly for precision mechanical element manufacturing to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a processing and feeding assembly for precision mechanical element manufacturing, comprising a bottom plate mechanism, wherein the bottom plate mechanism comprises a bottom plate; A bottom bin mechanism is arranged on the bottom plate mechanism, and the bottom bin mechanism comprises a bottom bin fixedly connected to the bottom plate, and notches are formed in the upper sides of the end walls of the bottom bin; The bottom bin mechanism is provided with a strip conveying mechanism, the strip conveying mechanism comprises a strip with two notches embedded and fixed, the cross section of the strip is triangular, an arc groove is formed on the upper side of the strip, a feeding strip is fixedly connected to the tail end of the strip, and the tail end cross section of the feeding strip is tapered; A camera mechanism for detecting elements is arranged at the tail end of the strip. A pressing mechanism for aligning elements is arranged at the head side of the camera mechanism. A sieve falling mechanism corresponding to the pushing component is arranged at the head end of the strip, and the sieve falling mechanism comprises a bin with a tapered lower port.

[0007] As a preferred technical solution of the present application, the lower surface of the bottom plate is fixedly connected with a stabilizing foot for anti-skid at each corner.

[0008] As a preferred technical solution of the present application, an adapter bin is inserted through one end of the bottom bin, and a handle is fixedly connected to the middle of one end surface of the adapter bin. The upper end surface of the adapter bin is inwardly inclined.

[0009] As a preferred technical solution of the present application, air holes are uniformly formed at equal distances on both sides of the inside of the arc groove, and air pumps are fixedly installed on both sides of the outside of the tail end of the strip. The pushing component comprises a plug block matched with the notches, an embedding groove matched with the strip and the arc groove is formed on the lower side of the plug block, a gas cylinder is fixedly connected to the head side of the plug block, and a connecting plate is fixedly connected between the shell seat of the gas cylinder and the head end of the strip.

[0010] As a preferred technical solution of the present application, the camera mechanism comprises a camera opposite to the tail end of the strip, first supporting legs are fixedly connected to both sides of the camera, and the bottom plate is fixedly connected to the end of the first supporting leg away from the camera.

[0011] As a preferred technical solution of the present application, the pressing mechanism comprises a seat cylinder, second supporting legs are fixedly connected to both sides of the seat cylinder, and the bottom plate is fixedly connected to the end of the second supporting leg away from the seat cylinder. A cylinder rod is inserted into the lower side of the seat cylinder, a rod disc matched with the seat cylinder is fixedly connected to the upper end of the cylinder rod, a first spring is fixedly connected between the rod disc and the seat cylinder, a cover is fixedly connected to the lower end of the cylinder rod, symmetrical rotators are embedded into both sides of the cover, a rotating shaft is installed between the two rotators, a pressing wheel fixedly sleeving the rotating shaft is matched with the cover on the lower side of the cover, an annular pressing groove is formed in the middle outer side of the pressing wheel, the pressing wheel is opposite to the strip, and the pressing groove is opposite to the arc groove.

[0012] As a preferred technical scheme of the present application, the middle part of the hopper is fixedly provided with a transversely arranged inner column, one end of the inner column is provided with a vibrating part; The vibrating part comprises a motor, the output end of the motor is movably connected with the inner column through a bearing, an eccentric block is fixedly sleeved on the outer end of the output end of the inner column, a third supporting leg is fixedly connected between the shell of the motor and the bottom plate; The outer side of the upper part of the hopper is fixedly connected with a receiving disc respectively, the outer end lower surface of the receiving disc is fixedly connected with a second spring, the lower end of the second spring is fixedly connected with a vertical column, the lower end of the vertical column is fixedly connected with the bottom plate.

[0013] Compared with the prior art, the present application has the following beneficial effects: (1) A machining feeding assembly for precision mechanical element manufacturing, the motor is started to drive the eccentric block to rotate, under the action of the eccentric block, the hopper vibrates under the control of the second spring, the elements in the hopper gradually fall into the conveying strip from the lower side under the action of vibration, the elements in the hopper are removed from the lower side under the action of screening, and the vibration of the hopper can avoid the gradually inwardly retracted outlet being blocked by the elements, thereby improving the smoothness of the preliminary feeding.

[0014] (2) A machining feeding assembly for precision mechanical element manufacturing, the cylinder is simultaneously started to extend and retract, when the cylinder is retracted, the blocking block is beside the lower side outlet of the hopper; when the cylinder is extended, the blocking block blocks the lower side outlet of the hopper; after single extension and retraction of the cylinder, one to two elements will fall into the conveying strip from the lower side outlet of the hopper, thereby avoiding the problems of too much or too little feeding at a time, and the elements falling into the conveying strip will be conveyed to the pressing mechanism when the cylinder is extended next time, thereby improving the efficient cooperation of the feeding process.

[0015] (3) A machining feeding assembly for precision mechanical element manufacturing, the elements falling in the transverse state will also be continuously conveyed through the conveying strip, the process of falling from the hopper to the conveying strip can convey the original elements in the same orientation, then the elements are further conveyed through the pressing mechanism in the pushing process of the pushing part, the pressing groove formed in the pressing wheel is adapted to the transversely arranged elements, when the elements are sequentially accumulated and pushed forward by the pushing part, the pressing wheel rotates under the action of the rotator and gradually winds the elements below, the elements are subjected to secondary forward regular positioning through the pressure action of the first spring, then the position of the elements is detected through the camera, and the regular positioning accuracy of the elements is improved through three times of regular positioning.

[0016] (4) A machining feeding assembly for precision mechanical element manufacturing, the elements falling from the conveying strip can be received by the pull-out box inserted in the bottom hopper, when the pull-out box is full, the pull-out box can be pulled out through the handle, then the pull-out box is poured into the hopper again for screening and falling, thereby avoiding the loss and waste of the elements and improving the recovery rate of the unpositioned elements.

[0017] (5) A machining feed assembly for precision mechanical component manufacturing, by the corresponding of the plug and the lower port of the bin, the vibration of the bin can be transmitted to the conveying strip through this place, so that when the component is placed horizontally in the arc groove of the conveying strip, the slight vibration can further make the horizontally placed component in the arc groove, using the part's own gravity and arc groove guide, gradually align the component axis with the conveying direction, the posture deviation after alignment is stable within a reasonable range, improving the accuracy of the component horizontal placement in the arc groove.

[0018] (6) A machining feed assembly for precision mechanical component manufacturing, by the gas pump continuously conveying gas flow into the air hole, forming a gas film in the arc groove, which can reduce the friction between the component and the arc groove, and further improve the smoothness of the component conveying. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The structure of the present application is shown in the schematic diagram; Figure 2 The main structure of the present application is shown in the schematic diagram; Figure 3 The bottom plate mechanism of the present application is shown in the schematic diagram; Figure 4 The bottom bin mechanism of the present application is shown in the schematic diagram; Figure 5 The conveying strip mechanism of the present application is shown in the schematic diagram; Figure 6 The A of the present application is shown in the enlarged schematic diagram; Figure 5 Figure 7 The camera mechanism of the present application is shown in the schematic diagram; Figure 8 The pressing mechanism of the present application is shown in the schematic diagram; Figure 9 The sieve falling mechanism of the present application is shown in the schematic diagram; Figure 10 The internal structure of the bin of the present application is shown in the schematic diagram.

[0020] ​In the figure: 1, bottom plate mechanism; 101, bottom plate; 102, stabilizing foot; 2, bottom bin mechanism; 201, bottom bin; 202, pull-out box; 203, handle; 204, notch; 3, strip conveying mechanism; 301, strip; 302, arc groove; 303, feeding strip; 304, air hole; 305, air pump; 306, block; 307, embedding groove; 308, air cylinder; 309, connecting plate; 4, camera mechanism; 401, camera; 402, first supporting leg; 5, pressing mechanism; 501, seat cylinder; 502, second supporting leg; 503, cylinder rod; 504, rod disc; 505, first spring; 506, cover; 507, rotator; 508, rotating shaft; 509, pressing wheel; 510, pressing groove; 6, sieve falling mechanism; 601, material bin; 602, inner column; 604, motor; 605, eccentric block; 606, third supporting leg; 607, receiving disc; 608, second spring; 609, stand column. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0022] Embodiment: please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 10 A machining and feeding assembly for manufacturing precision mechanical components, comprising a bottom plate mechanism 1, the bottom plate mechanism 1 comprising a bottom plate 101; The bottom plate mechanism 1 is provided with a bottom bin mechanism 2, the bottom bin mechanism 2 comprising a bottom bin 201 fixedly connected to the bottom plate 101, and notches 204 being respectively formed in the upper sides of the two end walls of the bottom bin 201; The bottom bin mechanism 2 is provided with a strip conveying mechanism 3, the strip conveying mechanism 3 comprising a strip 301 fixedly embedded in the two notches 204, the cross section of the strip 301 being triangular, the upper side of the strip 301 being provided with an arc groove 302, and the tail end of the strip 301 being fixedly connected with a feeding strip 303, the cross section of the feeding strip 303 being the same as that of the strip 301, and the tail end cross section of the feeding strip 303 being tapered for easy feeding; the head end of the strip 301 is provided with a pushing component for moving components; The tail end of the strip 301 is provided with a camera mechanism 4 for detecting components; The head side of the camera mechanism 4 is provided with a pressing mechanism 5 for aligning components; The head end of the conveying strip 301 is provided with a sieve falling mechanism 6 corresponding to the pushing component, and the sieve falling mechanism 6 comprises a hopper 601 with a tapered lower end.

[0023] Please refer to Figure 3 The lower surface of the bottom plate 101 is fixedly connected with four stable feet 102 for anti-skid at the four corners respectively.

[0024] Please refer to Figure 4 One end of the bottom bin 201 is inserted through an adapter box 202 matched with the bottom bin 201, and the adapter box 202 is fixedly connected with a handle 203 in the middle of one end surface; The inner side of the upper end surface of the adapter box 202 is inclined.

[0025] Please refer to Figure 5 、 Figure 6 The inside of the arc groove 302 is provided with air holes 304 at both sides at equal intervals and uniformly, and the tail end of the conveying strip 301 is fixedly installed with air pumps 305 communicating with the air holes 304 at both sides, the air pumps 305 are selected to be micro oil-free vortex air pumps, have 0.02MPa level pressure fine adjustment function, can dynamically adapt air flow intensity according to part weight, for example, for light parts with φ0.5mm and weight 0.1g, output 0.08-0.12MPa low pressure air flow; for heavy parts with φ5mm and weight 5g, increase to 0.2-0.25MPa high pressure air flow, avoid air film rupture caused by insufficient pressure or part deviation caused by excessive pressure; The pushing component comprises a plug 306 matched with the notch 204, the lower side of the plug 306 is provided with an embedding groove 307 matched with the conveying strip 301 and the arc groove 302, the head side of the plug 306 is fixedly connected with an air cylinder 308, and the shell seat of the air cylinder 308 and the head end of the conveying strip 301 are fixedly connected with a connecting plate 309.

[0026] Please refer to Figure 7 The camera mechanism 4 comprises a camera 401 opposite to the tail end of the conveying strip 301, and the two sides of the camera 401 are fixedly connected with first supporting legs 402, and the ends of the first supporting legs 402 away from the camera 401 are fixedly connected with the bottom plate 101.

[0027] Please refer to Figure 8 The pressing mechanism 5 comprises a seat cylinder 501, the two sides of the seat cylinder 501 are fixedly connected with second supporting legs 502, and the ends of the second supporting legs 502 away from the seat cylinder 501 are fixedly connected with the bottom plate 101. The lower side of the seat cylinder 501 is inserted with a cylinder rod 503, the upper end of the cylinder rod 503 is fixedly connected with a rod disc 504 matched with the seat cylinder 501, a first spring 505 is fixedly connected between the rod disc 504 and the seat cylinder 501; the lower end of the cylinder rod 503 is fixedly connected with a cover 506, the two sides of the cover 506 are respectively and symmetrically embedded with rotators 507, a rotating shaft 508 is installed between the two rotators 507; the lower side of the cover 506 is matched with a pressing wheel 509 fixedly sleeving the rotating shaft 508, an annular pressing groove 510 is formed in the middle outer side of the pressing wheel 509; the pressing wheel 509 is made of flexible material, the pressing wheel 509 faces the conveying strip 301, and the pressing groove 510 faces the arc groove 302.

[0028] Please refer to Figure 9 、 Figure 10 , the middle part of the hopper 601 is fixedly inserted with a horizontally arranged inner column 602, one end of the inner column 602 is provided with a vibrating part; The vibrating part comprises a motor 604, the output end of the motor 604 is movably connected with the inner column 602 through a bearing, the output end of the inner column 602 is fixedly sleeved with an eccentric block 605, and the shell of the motor 604 and the bottom plate 101 are fixedly connected with a third supporting leg 606; The outer side of the upper part of the hopper 601 is fixedly connected with a receiving disc 607, the outer end of the receiving disc 607 is fixedly connected with a second spring 608, the lower end of the second spring 608 is fixedly connected with a vertical column 609, and the lower end of the vertical column 609 is fixedly connected with the bottom plate 101.

[0029] The working principle of the application is as follows: The motor 604 is started to drive the eccentric block 605 to rotate, under the action of the eccentric block 605, the hopper 601 vibrates under the control of the second spring 608, the elements in the hopper 601 gradually fall into the conveying strip 301 from the lower side under the vibration action, and the elements in the hopper 601 move out from the lower side under the screening action, and the vibration of the hopper 601 can avoid that the gradually inwardly retracted outlet is blocked by the elements, and the smoothness of the preliminary material falling is improved.

[0030] Meanwhile, the cylinder 308 is started to stretch and contract, when the cylinder 308 contracts, the block 306 is beside the lower side outlet of the hopper 601, when the cylinder 308 extends, the block 306 blocks the lower side outlet of the hopper 601, after the cylinder 308 stretches and contracts once, one to two elements in the lower side outlet of the hopper 601 fall into the conveying strip 301, thereby avoiding the problems of too much or too little material falling once, and the elements falling into the conveying strip 301 are conveyed to the pressing mechanism 5 when the cylinder 308 extends next time, and the efficient cooperation of the material supply process is improved.

[0031] The upper side of the conveying strip 301 is provided with an arc groove 302. When the components fall from the lower outlet of the hopper 601, if the components fall vertically, the center of gravity is high and unstable, so they will fall into the bottom bin mechanism 2 from the two side inclined surfaces of the conveying strip 301, and part of them will fall into the conveying strip 301 to form a horizontal state. Similarly, the components in the horizontal state will also be continuously conveyed by the conveying strip 301. The process of falling from the hopper 601 to the conveying strip 301 can convey the components in the same direction. Then, during the pushing process of the pushing component, the components are further conveyed through the pressing mechanism 5. The pressing groove 510 provided on the pressing wheel 509 is matched with the components in the horizontal state. When the components are sequentially accumulated and pushed forward by the pushing component, the pressing wheel 509 rotates under the action of the rotator 507, and gradually winds the components under it. Through the pressure action of the first spring 505, the components are subjected to secondary positive orientation. Then, the position is detected by the camera 401. Through three times of orientation, the accuracy of the component orientation is improved.

[0032] The components falling from the conveying strip 301 can be received by the drawer 202 inserted in the bottom bin 201. When the drawer 202 is full, the drawer 202 can be pulled out through the handle 203, and then poured into the hopper 601 again for screening and falling to avoid loss and waste of components and improve the recovery rate of misoriented components.

[0033] Through the correspondence of the blocking block 306 and the lower port of the hopper 601, the vibration of the hopper 601 can be transmitted to the conveying strip 301 through this place, so that when the components are horizontally placed in the arc groove 302 of the conveying strip 301, slight vibration can further make the horizontally placed components in the arc groove 302. Correct, gradually align the axis of the component with the conveying direction, and the deviation of the posture after correction is stably controlled within a reasonable range to improve the accuracy of the horizontal placement of the components in the arc groove 302.

[0034] By continuously conveying gas flow into the air hole 304 through the air pump 305, a gas film is formed in the arc groove 302, which can reduce the friction between the components and the arc groove 302, and further improve the smoothness of the component conveying.

[0035] Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A processing feed assembly for precision mechanical component manufacturing, comprising a base plate mechanism (1), wherein the base plate mechanism (1) comprises a base plate (101); characterized in that a bottom bin mechanism (2) is arranged on the base plate mechanism (1), wherein the bottom bin mechanism (2) comprises a bottom bin (201) fixedly connected to the base plate (101), and a gap (204) is formed in the middle of the upper side of the end wall of the bottom bin (201); a strip conveying mechanism (3) is arranged on the bottom bin mechanism (2), wherein the strip conveying mechanism (3) comprises a strip (301) fixedly connected to the two gaps (204), the cross section of the strip (301) is triangular, an arc groove (302) is formed in the upper side of the strip (301), a feed strip (303) is fixedly connected to the tail end of the strip (301), and the cross section of the tail end of the feed strip (303) is tapered; a pushing component for moving components is arranged at the head end of the strip (301); a camera mechanism (4) for detecting components is arranged at the tail end of the strip (301); a pressing mechanism (5) for aligning components is arranged at the head side of the camera mechanism (4); a sieve falling mechanism (6) corresponding to the pushing component is arranged at the head end of the strip (301), and the sieve falling mechanism (6) comprises a bin (601) with a tapered lower port.

2. The process feed assembly for use in the manufacture of precision mechanical components according to claim 1, characterized in that: Stable feet (102) for preventing slipping are fixedly connected to the lower surface of the base plate (101) at four corners.

3. The process feed assembly for use in the manufacture of precision mechanical components according to claim 1, characterized in that: An extraction box (202) adapted to the bottom bin (201) is inserted through one end of the bottom bin (201), and a handle (203) is fixedly connected to the middle of the end face of the extraction box (202); the inner side of the upper end face of the extraction box (202) is inclined.

4. The process feed assembly for use in the manufacture of precision mechanical components according to claim 1, characterized in that: Air holes (304) are uniformly formed in the inner sides of the two sides of the arc groove (302) at equal distances, and air pumps (305) are fixedly installed on the outer sides of the tail end of the strip (301) and connected to the air holes (304); the pushing component comprises a plug (306) adapted to the gap (204), an embedding groove (307) adapted to the strip (301) and the arc groove (302) is formed in the lower side of the plug (306), a gas cylinder (308) is fixedly connected to the head side of the plug (306), and a connecting plate (309) is fixedly connected between the shell seat of the gas cylinder (308) and the head end of the strip (301).

5. The process feed assembly for use in the manufacture of precision mechanical components according to claim 1, wherein: The camera mechanism (4) comprises a camera (401) opposite to the tail end of the strip (301), first supporting legs (402) are fixedly connected to the two sides of the camera (401), and one end of the first supporting leg (402) away from the camera (401) is fixedly connected to the base plate (101).

6. The process feed assembly for use in the manufacture of precision mechanical components according to claim 1, wherein: The pressing mechanism (5) comprises a seat cylinder (501), second supporting legs (502) are fixedly connected to the two sides of the seat cylinder (501), and one end of the second supporting leg (502) away from the seat cylinder (501) is fixedly connected to the base plate (101). The lower side of the seat cylinder (501) is inserted with a cylinder rod (503), the upper end of the cylinder rod (503) is fixedly connected with a rod disc (504) matched with the seat cylinder (501), a first spring (505) is fixedly connected between the rod disc (504) and the seat cylinder (501); the lower end of the cylinder rod (503) is fixedly connected with a cover shell (506), the two sides of the cover shell (506) are respectively and symmetrically embedded with rotators (507), a rotating shaft (508) is installed between the two rotators (507); the lower side of the cover shell (506) is matched with a pressing wheel (509) fixedly sleeving the rotating shaft (508), an annular pressing groove (510) is formed in the middle outer side of the pressing wheel (509); the pressing wheel (509) faces the feeding strip (301), and the pressing groove (510) faces the arc groove (302).

7. The process feed assembly of claim 1, wherein: The middle part of the stock bin (601) is fixedly inserted with a transversely arranged inner column (602), one end of the inner column (602) is provided with a vibrating part; The vibrating part comprises a motor (604), the output end of the motor (604) is movably connected with the inner column (602) through a bearing, an eccentric block (605) is fixedly sleeved on the output end outer side of the inner column (602), and a third supporting leg (606) is fixedly connected between the shell of the motor (604) and the bottom plate (101); The upper outer side of the stock bin (601) is fixedly connected with a receiving disc (607), the outer end lower surface of the receiving disc (607) is fixedly connected with a second spring (608), the lower end of the second spring (608) is fixedly connected with a stand column (609), and the lower end of the stand column (609) is fixedly connected with the bottom plate (101).

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