Automatic feeding device for workpieces of annular structures

Abstract

The invention provides an automatic feeding device for workpieces of an annular structure. The automatic feeding device comprises a storage mechanism, a feeding mechanism is arranged close to the storage mechanism, and the feeding mechanism is provided with a feeding position. A material suction mechanism is arranged above the feeding position, a conveying belt is arranged on the side opposite to the feeding mechanism, and a position sensor is arranged close to the conveying belt. The annular structure workpieces on the storage mechanism are placed on the feeding position of the feeding mechanism, and the suction mechanism sucks the annular structure workpieces. The material suction mechanism drives the annular-structure workpiece to move to the position above the conveying belt, and if the position sensor does not detect the annular-structure workpiece, other annular-structure workpieces are not placed on the conveying belt at the moment. And the material suction mechanism descends, and the annular structure workpiece is placed on the conveying belt. The lifting type feeding mechanism is adopted, a vibration feeding mode is replaced with a lifting mode, stacking and clamping stagnation of the workpieces of the annular structure can be prevented, stable feeding is achieved on the premise of automation, and the feeding efficiency of the workpieces of the annular structure is improved.

Description

Technical Field

[0001] The invention relates to the technical field of feeding devices, and in particular to an automatic feeding device for a workpiece with an annular structure. Background Art

[0002] Thin-walled hollow ring-shaped workpieces, such as steel ball seats or steel ball brackets, are widely used in various electrical products with steering functions. Thin-walled hollow ring-shaped workpieces need to be equipped with multiple steel balls to play the role of steering support and stable steering.

[0003] Due to the thin structure of thin-walled hollow ring-shaped workpieces, thin-walled hollow ring-shaped workpieces are prone to deformation. In the final assembly production process, when using traditional vibration plates for automatic loading, it is particularly prone to stacking and jamming, resulting in failure to load materials in time. At the same time, it is easy to nest and jam during the loading process, reducing the efficiency of automated assembly.

[0004] Therefore, there is a need for an automatic feeding device that can solve the problems of stacking and jamming of traditional vibration feeding and achieve stable feeding under the premise of automation. Summary of the invention

[0005] In order to overcome the problems existing in the related art, the purpose of the present invention is to provide an automatic feeding device for annular structure workpieces, which can solve the problems of stacking and jamming of traditional vibration feeding and realize stable feeding under the premise of automation.

[0006] An automatic feeding device for annular structure workpieces comprises a storage mechanism, a feeding mechanism is arranged near the storage mechanism, and the feeding mechanism is provided with a feeding position; a suction mechanism is arranged above the feeding position, a conveyor belt is arranged on the side opposite to the feeding mechanism, and a position sensor is arranged near the conveyor belt; the storage mechanism moves the annular structure workpiece to the feeding position, and the suction mechanism places the annular structure workpiece on the conveyor belt.

[0007] In a preferred technical solution of the present invention, the material storage mechanism includes a plurality of material storage pieces, and a plurality of the annular structure workpieces are sleeved on the material storage pieces.

[0008] In a preferred technical solution of the present invention, the material storage mechanism further includes a first transverse movement module and a slide rail, the first transverse movement module is connected to a loading platform; the loading platform is slidably connected to the slide rail, and a plurality of the material storage members are arranged on the loading platform.

[0009] In a preferred technical solution of the present invention, the loading mechanism includes a loading plate, the loading plate is connected to a lifting module, and the lifting module is used to drive the loading plate to move in the height direction.

[0010] In a preferred technical solution of the present invention, the feeding mechanism also includes a clamping cylinder, which is located on both sides of the feeding position; the clamping cylinder is connected to a slide cylinder, and the slide cylinder is used to drive the clamping cylinder to precisely position the annular structure workpiece.

[0011] In a preferred technical solution of the present invention, a plurality of first photoelectric sensors are arranged on a side of the slide rail close to the feeding mechanism, and the first photoelectric sensors are used to detect whether there is the annular structure workpiece at the feeding position.

[0012] In a preferred technical solution of the present invention, the suction mechanism includes a suction cup and a plurality of suction nozzles, the suction nozzles penetrate the suction cup, and the suction cup is used to suck the annular structure workpiece.

[0013] In a preferred technical solution of the present invention, a side of the suction cup away from the feeding mechanism is connected to a first three-axis cylinder, and a side of the first three-axis cylinder away from the suction cup is connected to a second transverse movement module.

[0014] In a preferred technical solution of the present invention, the position sensor includes a second photoelectric sensor, a plurality of the second photoelectric sensors are facing the conveyor belt, and the second photoelectric sensors are used to detect whether the annular structure workpiece is on the conveyor belt.

[0015] In a preferred technical solution of the present invention, an assembly positioning point is provided on the side of the conveyor belt opposite to the drop position, a positioning cylinder is provided above the assembly positioning point, and a second three-axis cylinder is connected to the side of the positioning cylinder away from the conveyor belt; the positioning cylinder includes a push rod, and the annular structure workpiece is provided with an opening, and the push rod is adapted to the opening.

[0016] In a preferred technical solution of the present invention, a third photoelectric sensor is arranged above the loading plate, and the third photoelectric sensor is used to detect whether the annular structure workpiece rises to a preset height.

[0017] In a preferred technical solution of the present invention, three groups of suction structures are arranged on the suction cup, the three groups of suction structures are distributed in an equilateral triangle, and each group of the suction structures includes two suction nozzles.

[0018] The beneficial effects of the present invention are as follows: the present invention provides an automatic feeding device for annular structure workpieces, comprising a storage mechanism, a feeding mechanism is arranged near the storage mechanism, and the feeding mechanism is provided with a feeding position; a suction mechanism is arranged above the feeding position, a conveyor belt is arranged on the side opposite to the feeding mechanism, and a position sensor is arranged near the conveyor belt. The storage mechanism moves the annular structure workpiece to the feeding position, and the suction mechanism places the annular structure workpiece on the conveyor belt. The storage mechanism is moved in a direction close to the feeding mechanism until the storage mechanism moves to the side opposite to the feeding mechanism. The annular structure workpiece on the storage mechanism is placed on the feeding position of the feeding mechanism. The feeding mechanism rises, and the suction mechanism descends until the suction mechanism sucks the annular structure workpiece. The suction mechanism drives the annular structure workpiece to move above the conveyor belt. If the position sensor does not detect the annular structure workpiece, it means that no other annular structure workpiece is placed on the conveyor belt at this time. The suction mechanism descends, and the annular structure workpiece is placed on the conveyor belt, which can prevent one annular structure workpiece from being stacked on another annular structure workpiece. The conveyor belt moves forward to transport the annular workpiece until the annular workpiece moves to a preset position. In the feeding process of the annular workpiece, compared with the traditional feeding structure using a vibration plate, the present invention adopts a lifting feeding mechanism, and uses a lifting method along the height direction instead of a vibration feeding method, which can prevent the annular workpiece from stacking and jamming, realize stable feeding under the premise of automation, and improve the feeding efficiency of the annular workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the automatic feeding device for annular structure workpieces of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the automatic feeding device for annular structure workpieces of the present invention;

[0021] Figure 3 It is a side view of the automatic feeding device for the annular structure workpiece of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the suction cup and the suction nozzle of the present invention;

[0023] Figure 5 It is a structural schematic diagram of the material storage member of the present invention;

[0024] Figure 6 It is a structural schematic diagram of a ring-shaped structure workpiece of the present invention;

[0025] Figure 7 It is a top view of the annular structure workpiece of the present invention.

[0026] Figure numerals: 1. material storage mechanism; 2. material loading mechanism; 3. material suction mechanism; 4. conveyor belt; 5. annular structure workpiece; 6. material storage member; 7. first transverse movement module; 8. slide rail; 9. material loading platform; 10. material loading plate; 11. lifting module; 12. clamping cylinder; 13. slide cylinder; 14. first photoelectric sensor; 15. suction cup; 16. suction nozzle; 17. first three-axis cylinder; 18. second transverse movement module; 19. second photoelectric sensor; 20. positioning cylinder; 21. second three-axis cylinder; 22. opening; 23. assembly positioning point; 24. material loading position; 25. third photoelectric sensor. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0028] Example 1

[0029] like Figure 1-Figure 7 As shown, this embodiment provides an automatic loading device for annular structure workpieces, including a storage mechanism 1, a loading mechanism 2 is arranged near the storage mechanism 1, and the loading mechanism 2 is provided with a loading position 26; a suction mechanism 3 is arranged above the loading position 26, a conveyor belt 4 is arranged on the side opposite to the loading mechanism 2, and a position sensor is arranged near the conveyor belt 4; the storage mechanism 1 moves the annular structure workpiece 5 to the loading position 26, and the suction mechanism 3 places the annular structure workpiece 5 on the conveyor belt 4.

[0030] The material storage mechanism 1 is provided with a plurality of material storage members 6. In this embodiment, five material storage members 6 are provided as an example. The five material storage members 6 are arranged at intervals. The shape of the material storage members 6 is cylindrical or square. The annular structure workpiece 5 is a thin-walled hollow structure. A plurality of annular structure workpieces 5 are sleeved on the material storage member 6. The plurality of annular structure workpieces 5 are arranged along the height direction.

[0031] A loading mechanism 2 is provided on one side of the storage mechanism 1 , and the storage mechanism 1 moves toward the loading mechanism 2 until the first storage piece of the storage mechanism 1 is located at the loading position 24 , and the first storage piece fits with the loading mechanism 2 .

[0032] After the first material storage piece reaches the loading position 24, the loading mechanism 2 drives the annular structure workpiece 5 to move upward, and then positions the annular structure workpiece 5 on the first material storage piece. The suction mechanism 3 located above the loading position 24 descends, and the suction mechanism 3 first sucks the annular structure workpiece 5, and then drives the annular structure workpiece 5 to move above the conveyor belt 4.

[0033] The position sensor faces the blanking position on the conveyor belt 4, and the position sensor detects whether there is an annular structure workpiece 5 at the blanking position. If not, the suction mechanism 3 drives the annular structure workpiece 5 down, and the suction mechanism 3 places the annular structure workpiece 5 at the blanking position. If there is an annular structure workpiece 5 at the blanking position, the suction mechanism 3 stops moving until the position sensor detects that there is no annular structure workpiece 5 at the blanking position, and the suction mechanism 3 drives the annular structure workpiece 5 down, and the suction mechanism 3 places the annular structure workpiece 5 at the blanking position. The annular structure workpiece 5 moves forward with the conveyor belt 4 until the annular structure workpiece 5 moves to the preset position.

[0034] After all the annular structure workpieces 5 on the first storage piece are placed on the conveyor belt 4 by the suction mechanism 3, the storage mechanism 1 moves forward so that the second storage piece is located at the loading position 24, and the second storage piece is now in contact with the loading mechanism 2. With the cooperation of the loading mechanism 2 and the suction mechanism 3, the above process is repeated to place all the annular structure workpieces 5 on the second storage piece on the conveyor belt 4. After all the annular structure workpieces 5 of one storage piece 6 complete the loading process, the storage mechanism 1 moves forward until all the annular structure workpieces 5 of the five storage pieces 6 complete the loading process.

[0035] The present embodiment provides an automatic feeding device for annular structure workpieces, comprising a storage mechanism 1, a feeding mechanism 2 is arranged near the storage mechanism 1, and the feeding mechanism 2 is provided with a feeding position 24; a suction mechanism 3 is arranged above the feeding position 24, a conveyor belt 4 is arranged on the side opposite to the feeding mechanism 2, and a position sensor is arranged near the conveyor belt 4. The storage mechanism 1 moves the annular structure workpiece 5 to the feeding position 24, and the suction mechanism 3 places the annular structure workpiece 5 on the conveyor belt 4. The storage mechanism 1 is moved in a direction close to the feeding mechanism 2 until the storage mechanism 1 moves to the side opposite to the feeding mechanism 2. The annular structure workpiece 5 on the storage mechanism 1 is placed on the feeding position 24 of the feeding mechanism 2. The feeding mechanism 2 rises, and the suction mechanism 3 falls until the suction mechanism 3 sucks the annular structure workpiece 5. The suction mechanism 3 drives the annular structure workpiece 5 to move above the conveyor belt 4. If the position sensor does not detect the annular structure workpiece 5, it means that no other annular structure workpiece 5 is placed on the conveyor belt 4 at this time. The suction mechanism 3 descends and places the annular structure workpiece 5 on the conveyor belt 4, which can prevent one annular structure workpiece 5 from being stacked on another annular structure workpiece 5. The conveyor belt 4 moves forward to transport the annular structure workpiece 5 until the annular structure workpiece 5 moves to a preset position. In the feeding process of the annular structure workpiece 5, compared with the traditional feeding structure using a vibration plate, the present invention adopts a lifting feeding mechanism 2, and adopts a lifting method in the height direction instead of a vibration feeding method, which can prevent the annular structure workpiece 5 from stacking and jamming, realize stable feeding under the premise of automation, and improve the feeding efficiency of the annular structure workpiece 5.

[0036] Example 2

[0037] like Figure 1-Figure 7 As shown, this embodiment provides an automatic loading device for annular structure workpieces, including a storage mechanism 1, a loading mechanism 2 is arranged near the storage mechanism 1, and the loading mechanism 2 is provided with a loading position 24; a suction mechanism 3 is arranged above the loading position 24, a conveyor belt 4 is arranged on the side opposite to the loading mechanism 2, and a position sensor is arranged near the conveyor belt 4; the storage mechanism 1 moves the annular structure workpiece 5 to the loading position 24, and the suction mechanism 3 places the annular structure workpiece 5 on the conveyor belt 4.

[0038] The material storage mechanism 1 includes a plurality of material storage members 6 , and a plurality of the annular structure workpieces 5 are sleeved on the material storage members 6 .

[0039] The material storage mechanism 1 further comprises a first transverse moving module 7 and a slide rail 8 . The first transverse moving module 7 is connected to a loading platform 9 . The loading platform 9 is slidably connected to the slide rail 8 . A plurality of material storage members 6 are arranged on the loading platform 9 .

[0040] A plurality of first photoelectric sensors 14 are disposed on one side of the slide rail 8 close to the feeding mechanism 2 , and the first photoelectric sensors 14 are used to detect whether the annular structure workpiece 5 is present at the feeding position 24 .

[0041] In this embodiment, five storage pieces 6 are taken as an example, and a plurality of annular structure workpieces 5 are placed in the five storage pieces 6 , with 150 annular structures placed on each storage piece 6 .

[0042] Preferably, the material storage member 6 is a groove-type three-section detachable structure. Compared with the one-piece roller-mounted circular structure, the three-section detachable structure can achieve flexible debugging. Two gaskets are respectively inserted into the groove of the material storage member 6. A plurality of through holes are respectively provided on the side walls on both sides of the material storage member 6. The screws are inserted into the corresponding through holes to fix the two gaskets in the groove of the material storage member 6. Two gaskets are arranged in the middle of the groove of the material storage member 6, and the groove of the material storage member 6 is divided into three sections. Moving the gaskets can change the width between the gaskets, so as to adapt to the annular structure workpiece 5 of different sizes. If a conventional roller is used, the annular structure workpiece 5 may get stuck when it is deformed or has burrs, and the size of the annular structure workpiece 5 can only be reduced, and the annular structure workpiece 5 needs to be removed and processed.

[0043] The annular structure workpiece 5 is a thin-walled hollow structure, and the opening 22 in the middle of the annular structure workpiece 5 is adapted to the size of the storage member 6, so that the annular structure workpiece 5 is sleeved on the storage member 6. The thickness of the annular structure workpiece 5 is small, so that the storage member 6 can accommodate 150 annular structure workpieces 5, and there is a gap between adjacent annular structure workpieces 5.

[0044] In this embodiment, two first photoelectric sensors 14 are provided, and both first photoelectric sensors 14 face the loading position 24. Five storage pieces 6 are arranged on the loading platform 9 at intervals, and the first transverse module 7 drives the loading platform 9 to move along the slide rail 8 toward the loading mechanism 2. When one or two first photoelectric sensors 14 detect the presence of a ring-shaped workpiece 5, it means that the first storage piece is located at the loading position 24, and the first storage piece is in contact with the loading mechanism 2, and the first transverse module 7 stops driving the loading platform 9 to move.

[0045] If the two first photoelectric sensors 14 do not detect the annular structure workpiece 5, it means that the loading platform 9 and the material storage piece 6 are not in place, and the first transverse movement module 7 continues to drive the loading platform 9 to move along the slide rail 8 toward the loading mechanism 2 until one or two first photoelectric sensors 14 detect the annular structure workpiece 5.

[0046] The storage mechanism 1 of this embodiment includes a plurality of storage pieces 6, on which a plurality of annular structure workpieces 5 are sleeved. The storage mechanism 1 also includes a first transverse movement module 7 and a slide rail 8, and the first transverse movement module 7 is connected to a loading platform 9. The loading platform 9 is slidably connected to the slide rail 8, and a plurality of storage pieces 6 are arranged on the loading platform 9. A plurality of first photoelectric sensors 14 are arranged on the side of the slide rail 8 close to the feeding mechanism 2, and the first transverse movement module 7 drives the loading platform 9 to move along the slide rail 8 toward the direction close to the feeding. When one or two first photoelectric sensors 14 detect the annular structure workpiece 5, it indicates that the first storage piece is located at the loading position 24 at this time, and the first storage piece is in contact with the feeding mechanism 2, and the first transverse movement module 7 stops driving the loading platform 9 to move.

[0047] Example 3

[0048] like Figure 1-Figure 7 As shown, this embodiment provides an automatic loading device for annular structure workpieces, including a storage mechanism 1, a loading mechanism 2 is arranged near the storage mechanism 1, and the loading mechanism 2 is provided with a loading position 24; a suction mechanism 3 is arranged above the loading position 24, a conveyor belt 4 is arranged on the side opposite to the loading mechanism 2, and a position sensor is arranged near the conveyor belt 4; the storage mechanism 1 moves the annular structure workpiece 5 to the loading position 24, and the suction mechanism 3 places the annular structure workpiece 5 on the conveyor belt 4.

[0049] The feeding mechanism 2 includes a feeding plate 10 , and the feeding plate 10 is connected to a lifting module 11 , and the lifting module 11 is used to drive the feeding plate 10 to move in a height direction.

[0050] The feeding mechanism 2 also includes a clamping cylinder 12, which is located on both sides of the feeding position 24; the clamping cylinder 12 is connected to a slide cylinder 13, and the slide cylinder 13 is used to drive the clamping cylinder 12 to precisely position the annular structure workpiece 5.

[0051] A third photoelectric sensor 25 is arranged above the loading plate 10, and the third photoelectric sensor 25 is used to detect whether the annular structure workpiece 5 rises to a preset height. The preset height is located between the storage piece 6 and the suction cup 15. Raising the annular structure workpiece 5 to the preset height can facilitate the suction nozzle 16 to suck the annular structure workpiece 5.

[0052] After detecting that there is an annular workpiece 5 at the loading position 24, the suction mechanism 3 sucks an annular workpiece 5, and the lifting module 11 drives the storage piece 6 that is in contact with the loading position 24 to move upward, and the suction mechanism 3 sucks the next annular workpiece 5. The lifting module 11 and the suction mechanism 3 cooperate with each other and repeat the above process until all the annular workpieces 5 on the storage piece 6 at the loading position 24 are sucked. At this time, the first transverse module 7 drives the loading platform 9 to move forward along the slide rail 8, so that the next storage piece 6 is located at the loading position 24.

[0053] The process of the suction mechanism 3 sucking each annular structure workpiece 5 is as follows: the lifting module 11 drives the storage part 6 to move upward until the third photoelectric sensor 25 detects the annular structure workpiece 5, at which time the slide cylinder 13 drives the clamping cylinder 12 to extend, and the clamping cylinder 12 clamps the annular structure workpiece 5 to complete the precise positioning of the annular structure workpiece 5. The suction mechanism 3 located above the loading position 24 descends, and the suction mechanism 3 sucks the annular structure workpiece 5 at the top of the storage part 6. The third photoelectric sensor 25 is arranged on the suction mechanism 3, and the number of the third photoelectric sensors 25 can be one or more, which is not limited here.

[0054] The lifting module 11 drives the material storage part 6 to move upward. If the third photoelectric sensor 25 does not detect the annular structure workpiece 5, the lifting module 11 continues to move upward until the third photoelectric sensor 25 detects the annular structure workpiece 5. When the material storage part 6 moves upward to the maximum loading height, if the third photoelectric sensor 25 does not detect the annular structure workpiece 5, and at the same time, several first photoelectric sensors 14 do not detect the annular structure workpiece 5, it is judged that the annular structure workpiece 5 on the material storage part 6 at the loading position 24 has been used up. The slide cylinder 13 drives the clamping cylinder 12 to retract to prevent the clamping cylinder 12 from colliding with the material storage part 6, and the first transverse module 7 drives the loading platform 9 to move forward until the next material storage part 6 is located at the loading position 24. Among them, the maximum loading height is the height of the third photoelectric sensor 26.

[0055] Since the annular structure workpiece 5 has ribs on both the upper and lower surfaces, the stacked annular structure workpiece 5 cannot remain level, which may cause suction failure when sucking the annular structure workpiece 5. Therefore, the clamping cylinder 12 is used to accurately position the annular structure workpiece 5.

[0056] The feeding mechanism 2 of this embodiment includes a feeding plate 10, and the feeding plate 10 is connected to a lifting module 11, and the lifting module 11 is used to drive the feeding plate 10 to move in the height direction. The feeding mechanism 2 also includes a clamping cylinder 12, and the clamping cylinder 12 is located on both sides of the feeding position 24; the clamping cylinder 12 is connected to a slide cylinder 13, and the slide cylinder 13 is used to drive the clamping cylinder 12 to precisely position the annular structure workpiece 5. The lifting module 11 drives the storage part 6 to move upward until the third photoelectric sensor 25 detects the annular structure workpiece 5, at which time the slide cylinder 13 drives the clamping cylinder 12 to extend, and the clamping cylinder 12 clamps the annular structure workpiece 5 to complete the precise positioning of the annular structure workpiece 5. The suction mechanism 3 located above the feeding position 24 descends, and the suction mechanism 3 sucks the topmost annular structure workpiece 5 of the storage part 6.

[0057] Example 4

[0058] like Figure 1-Figure 7 As shown, this embodiment provides an automatic loading device for annular structure workpieces, including a storage mechanism 1, a loading mechanism 2 is arranged near the storage mechanism 1, and the loading mechanism 2 is provided with a loading position 24; a suction mechanism 3 is arranged above the loading position 24, a conveyor belt 4 is arranged on the side opposite to the loading mechanism 2, and a position sensor is arranged near the conveyor belt 4; the storage mechanism 1 moves the annular structure workpiece 5 to the loading position 24, and the suction mechanism 3 places the annular structure workpiece 5 on the conveyor belt 4.

[0059] The suction mechanism 3 includes a suction cup 15 and a plurality of suction nozzles 16 . The suction nozzles 16 penetrate through the suction cup 15 . The suction cup 15 is used to suck the annular structure workpiece 5 .

[0060] A first three-axis cylinder 17 is connected to a side of the suction cup 15 away from the feeding mechanism 2 , and a second transverse movement module 18 is connected to a side of the first three-axis cylinder 17 away from the suction cup 15 .

[0061] An assembly positioning point 23 is provided on the side of the conveyor belt 4 opposite to the drop position, a positioning cylinder 20 is provided above the assembly positioning point 23, and a second three-axis cylinder 21 is connected to the side of the positioning cylinder 20 away from the conveyor belt 4; the positioning cylinder 20 includes a push rod, and the annular structure workpiece 5 is provided with an opening 22, and the push rod is adapted to the opening 22.

[0062] The suction cup 15 is provided with three groups of suction structures, which are distributed in an equilateral triangle. Each group of the suction structures includes two suction nozzles 16 .

[0063] In this embodiment, 6 suction nozzles 16 are set as an example. Every two suction nozzles 16 form a group of suction structures. The three groups of suction structures are connected end to end to form an equilateral triangle. That is, the three groups of suction structures are located at the three vertices of the equilateral triangle, so that the suction force is evenly distributed, eliminating the interference of multiple circular holes on the annular structure workpiece 5, thereby ensuring the stability of the process of sucking the annular structure workpiece 5.

[0064] The two second photoelectric sensors 19 are located above the conveyor belt 4 , and the two second photoelectric sensors 19 face the drop position of the conveyor belt 4 .

[0065] The second transverse shift module 18 is used to drive the first three-axis cylinder 17 to move horizontally, and the first three-axis cylinder 17 drives the suction cup 15 to move in the height direction. With the cooperation of the second transverse shift module 18 and the first three-axis cylinder 17, the annular structure workpiece 5 is placed on the conveyor belt 4. The transportation process of the annular structure workpiece 5 is as follows: the first three-axis cylinder 17 drives the suction nozzle 16 to descend until the suction nozzle 16 absorbs the annular structure workpiece 5, and the first three-axis cylinder 17 drives the suction nozzle 16 to rise. The second transverse shift module 18 drives the first three-axis cylinder 17 and the suction nozzle 16 to retract until the annular structure workpiece 5 is located above the conveyor belt 4. If the two second photoelectric sensors 19 detect that there is no annular structure workpiece 5 at the blanking position of the conveyor belt 4, the first three-axis cylinder 17 drives the suction nozzle 16 to descend, and the suction nozzle 16 stops absorbing the annular structure workpiece 5, thereby placing the annular structure workpiece 5 at the blanking position of the conveyor belt 4.

[0066] Two second photoelectric sensors 19 are set. When the two second photoelectric sensors 19 do not detect the presence of an annular structure workpiece 5 at the blanking position of the conveyor belt 4, the annular structure workpiece 5 is placed on the blanking position. This can prevent two annular structure workpieces 5 from stacking and ensure that one annular structure workpiece 5 is loaded in one loading process.

[0067] Since the conveyor belt 4 cannot accurately convey the annular structure workpiece 5 to the assembly positioning point 23, an auxiliary feeding mechanism is added at the end of the conveyor belt 4. When the annular structure workpiece 5 is conveyed to the front end of the assembly positioning point 23 by the conveyor belt 4, the fourth photoelectric sensor located at the front end of the assembly positioning point 23 is triggered, the conveyor belt 4 stops conveying, and the second three-axis cylinder 21 drives the positioning cylinder 20 to press down, so that the two push rods on the positioning cylinder 20 are inserted into the opening 22 of the annular structure workpiece 5. Under the action of inertia, the annular structure workpiece 5 continues to move forward until the annular structure workpiece 5 moves to the assembly positioning point 23, at which time the two push rods on the positioning cylinder 20 retract.

[0068] In this embodiment, two first photoelectric sensors 14 and two second photoelectric sensors 19 are provided. Since there are many round holes for assembling steel balls on the annular structure workpiece 5, when there is only one photoelectric sensor, the photoelectric sensor may just illuminate the round holes, resulting in wrong judgment. Two first photoelectric sensors 14 are provided, and the distance between the two first photoelectric sensors 14 is set according to the size of the annular structure workpiece 5, so that it is possible to accurately detect whether there is an annular structure workpiece 5 at the loading position 24 of the loading device. Two second photoelectric sensors 19 are provided, and the distance between the two second photoelectric sensors 19 is set according to the size of the annular structure workpiece 5, so that it is possible to accurately detect whether there is an annular structure workpiece 5 at the drop position of the conveyor belt 4.

[0069] The suction mechanism 3 of this embodiment includes a suction cup 15 and a plurality of suction nozzles 16. The suction nozzle 16 penetrates the suction cup 15, and the suction cup 15 is used to suck the annular structure workpiece 5. The side of the suction cup 15 away from the feeding mechanism 2 is connected to the first three-axis cylinder 17, and the side of the first three-axis cylinder 17 away from the suction cup 15 is connected to the second transverse module 18. The position sensor includes a second photoelectric sensor 19, and a plurality of second photoelectric sensors 19 are facing the conveyor belt 4. The second photoelectric sensor 19 is used to detect whether there is an annular structure workpiece 5 on the conveyor belt 4. The first three-axis cylinder 17 drives the suction nozzle 16 to descend until the suction nozzle 16 absorbs the annular structure workpiece 5, and the first three-axis cylinder 17 drives the suction nozzle 16 to rise. The second transverse module 18 drives the first three-axis cylinder 17 and the suction nozzle 16 to retract until the annular structure workpiece 5 is located above the conveyor belt 4. If the two second photoelectric sensors 19 detect that there is no annular structure workpiece 5 at the blanking position of the conveyor belt 4, the first three-axis cylinder 17 drives the suction nozzle 16 to descend, and the suction nozzle 16 stops sucking the annular structure workpiece 5, thereby placing the annular structure workpiece 5 at the blanking position of the conveyor belt 4.

[0070] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the application. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a restriction. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in the subsequent accompanying drawings.

[0071] It should be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would then be positioned "below" or "below" the other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used herein should be interpreted accordingly.

[0072] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic feeding device for annular structure workpieces, characterized in that: It includes a storage mechanism, a loading mechanism is arranged near the storage mechanism, and the loading mechanism is provided with a loading position; a suction mechanism is arranged above the loading position, a conveyor belt is arranged on the side opposite to the loading mechanism, and a position sensor is arranged near the conveyor belt; the storage mechanism moves the annular structure workpiece to the loading position, and the suction mechanism places the annular structure workpiece on the conveyor belt.

2. The automatic feeding device for annular structure workpieces according to claim 1, characterized in that: The material storage mechanism comprises a plurality of material storage pieces, and a plurality of the annular structure workpieces are sleeved on the material storage pieces.

3. The automatic feeding device for annular structure workpieces according to claim 2, characterized in that: The material storage mechanism also includes a first transverse moving module and a slide rail, wherein the first transverse moving module is connected to a loading platform; the loading platform is slidably connected to the slide rail, and a plurality of the material storage members are arranged on the loading platform.

4. The automatic feeding device for annular structure workpieces according to claim 1, characterized in that: The feeding mechanism comprises a feeding plate, the feeding plate is connected with a lifting module, and the lifting module is used for driving the feeding plate to move in the height direction.

5. The automatic feeding device for annular structure workpieces according to claim 4, characterized in that: The feeding mechanism also includes a clamping cylinder, which is located on both sides of the feeding position; the clamping cylinder is connected to a slide cylinder, and the slide cylinder is used to drive the clamping cylinder to precisely position the annular structure workpiece.

6. The automatic feeding device for annular structure workpieces according to claim 3, characterized in that: A plurality of first photoelectric sensors are arranged on one side of the slide rail close to the feeding mechanism, and the first photoelectric sensors are used to detect whether there is the annular structure workpiece at the feeding position.

7. The automatic feeding device for annular structure workpieces according to claim 1, characterized in that: The material suction mechanism comprises a suction cup and a plurality of suction nozzles, wherein the suction nozzles penetrate the suction cup, and the suction cup is used to suck the annular structure workpiece.

8. The automatic feeding device for annular structure workpieces according to claim 7, characterized in that: A side of the suction cup away from the feeding mechanism is connected to a first three-axis cylinder, and a side of the first three-axis cylinder away from the suction cup is connected to a second transverse movement module.

9. The automatic feeding device for annular structure workpieces according to claim 1, characterized in that: The position sensor includes a second photoelectric sensor, a plurality of the second photoelectric sensors are facing the conveyor belt, and the second photoelectric sensors are used to detect whether there is the annular structure workpiece on the conveyor belt.

10. The automatic feeding device for annular structure workpieces according to claim 8, characterized in that: An assembly positioning point is arranged on the side of the conveyor belt opposite to the material dropping position, a positioning cylinder is arranged above the assembly positioning point, and a second three-axis cylinder is connected to the side of the positioning cylinder away from the conveyor belt; the positioning cylinder includes a push rod, the annular structure workpiece has an opening, and the push rod is adapted to the opening.

11. The automatic feeding device for annular structure workpieces according to claim 4, characterized in that: A third photoelectric sensor is arranged above the loading plate, and the third photoelectric sensor is used to detect whether the annular structure workpiece rises to a preset height.

12. The automatic feeding device for annular structure workpieces according to claim 7, characterized in that: The suction cup is provided with three groups of suction structures, which are distributed in an equilateral triangle, and each group of the suction structures includes two suction nozzles.

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