Automatic loading and assembling device for O-rings

Abstract

The application discloses an automatic O-ring feeding and assembling device, and belongs to the mechanical field. The device sequentially comprises a feeding mechanism, a sensing misalignment mechanism and a rotating disc carrier. An expansion assembling mechanism for taking the O-ring from the sensing misalignment mechanism and mounting the O-ring on the rotating disc carrier and a moving and taking mechanism for transferring the expansion assembling mechanism from an O-ring taking position above the sensing misalignment mechanism to an O-ring assembling position above the rotating disc carrier are arranged above the sensing misalignment mechanism and the rotating disc carrier. The expansion assembling mechanism is fixedly arranged on the moving and taking mechanism. The device has the advantages that the expansion assembling mechanism, the sensing misalignment mechanism and the moving and taking mechanism are cooperated to take the O-ring from the sensing misalignment mechanism and mount the O-ring on the rotating disc carrier, four functions of automatic feeding, taking, expansion and assembling are realized, the operation rate is improved, the device has the characteristics of less action, high efficiency, beautiful and small mechanism and the like, and can be widely applied to the O-ring assembling of various industries.

Description

Technical Field

[0001] The present invention relates to the field of machinery, and in particular to an automatic feeding and assembling device for O-rings. Background Art

[0002] O-rings are essential components in precision machinery. Traditional O-ring assembly is prone to falling off due to the small, smooth rollers being assembled. Furthermore, to ensure the parting line is not distorted, the assembly requires manual operation. Due to varying worker proficiency, O-rings can be damaged during assembly, requiring removal and reassembly, which is time-consuming and labor-intensive. Furthermore, the large number of O-rings required can lead to operator fatigue, impacting production efficiency. The use of O-ring assembly mechanisms for O-ring assembly is currently the primary focus of O-ring assembly technology development. However, existing O-ring assembly mechanisms suffer from complex structures, cumbersome movements, and low equipment utilization rates.

[0003] Therefore, how to improve the utilization rate of the O-ring assembly mechanism, reduce its structural complexity, and achieve efficient and convenient assembly of the O-ring is an urgent problem to be solved in the industry. Summary of the Invention

[0004] In order to overcome the problems of complex structure, cumbersome movements and low equipment utilization rate of O-ring assembly mechanisms in the prior art, the present invention provides an O-ring automatic loading and assembly device, which comprises a feeding mechanism, an inductive dislocation mechanism and a turntable carrier in sequence. Above the inductive dislocation mechanism and the turntable carrier are installed an expansion assembly mechanism for removing the O-ring from the inductive dislocation mechanism and installing it on the turntable carrier, and a removal mechanism for transferring the expansion assembly mechanism from the O-ring removal position directly above the inductive dislocation mechanism to the O-ring assembly position directly above the turntable carrier. The expansion assembly mechanism is fixedly mounted on the removal mechanism.

[0005] An expansion assembly mechanism, an inductive dislocation mechanism, and a removal mechanism are used in coordination to remove the O-ring from the inductive dislocation mechanism and install it on the turntable carrier, thereby realizing the four-in-one functions of automatic loading, retrieving, expansion, and assembly, improving the utilization rate, and having the characteristics of few movements, high efficiency, and a beautiful and compact structure. It can be widely used in the assembly of external pressure O-rings in various industries.

[0006] Preferably, the expansion assembly mechanism includes an expansion assembly plate, an O-ring expansion assembly cylinder, an expansion ejector rod, an expansion sheet guide seat and an expansion sheet, the O-ring expansion assembly cylinder is fixedly mounted on the removal mechanism, and the expansion ejector rod is fixedly mounted on the movable end of the O-ring expansion assembly cylinder;

[0007] The expansion sheet guide seat is fixedly mounted on the expansion assembly plate directly below the O-ring expansion assembly cylinder, with a circular through hole formed in the center thereof in the vertical direction, and the lower end of the expansion ejector rod is disposed inside the circular through hole;

[0008] More than three expansion plates are evenly distributed on the expansion plate guide seat along the circumferential direction of the circular through hole. The upper part of each expansion plate is installed on the expansion plate guide seat through a rotating shaft and can rotate along the axial direction of the rotating shaft. The lower end of the expansion plate is formed with an expansion claw for removing the O-ring from the O-ring push rod.

[0009] The expansion piece and the expansion push rod are matched, and the expansion push rod slides downward to expand the expansion piece, so that the expansion claw removes the O-ring from the induction misalignment mechanism, and then the expansion push rod slides downward to push the O-ring off the expansion claw and install it on the turntable carrier, thereby achieving the effect of automatic expansion and assembly of the O-ring.

[0010] Preferably, an expansion curve portion is formed on a side of each expansion piece close to the circular through hole for pressing against the lower end of the expansion push rod;

[0011] When the lower end of the expansion push rod presses against the expansion curve portion and moves downward, the expansion piece will expand outward, and the expansion claws at the lower ends of the multiple expansion pieces cooperate to remove the O-ring from the induction misalignment mechanism.

[0012] Preferably, a knockout curve portion is formed on the expansion sheet below the expansion curve portion and presses against the lower end of the expansion push rod;

[0013] When the lower end of the expansion ejector pin continues to move downward after the ring-unloading curve portion, the lower end surface of the expansion ejector pin contacts the O-ring and ejects it from the expansion claw.

[0014] Preferably, an expansion abutment portion with an outwardly expanded diameter is formed upwardly at the lower end of the expansion rod. When the expansion rod moves downward, the expansion abutment portion abuts against the expansion curve portion of the expansion sheet and moves downward to expand the expansion sheet outward.

[0015] Preferably, the expansion push portion on the expansion push rod has a cylindrical stripping push portion extending upward. When the expansion push rod completes expansion and continues to move downward, the stripping push portion presses against the ring-demolition curve portion of the expansion sheet, and the lower end face of the expansion push rod contacts the O-ring and pushes it out from the expansion claw.

[0016] Preferably, a vertical strip opening is formed at the lower end of the expansion mandrel, located below the expansion abutment portion and corresponding to each expansion piece, and the vertical strip openings are evenly arranged along the circumferential direction on the expansion mandrel.

[0017] Preferably, a return spring in a compressed state is provided between the upper end portion of the expansion piece and the expansion piece guide seat, and the connection position between the return spring and the upper end portion of the expansion piece is above the rotating shaft.

[0018] Preferably, a limiting cone is provided in the middle of the expansion plate guide seat for limiting the return of the return spring, and a limiting portion is formed on the expansion plate at a position corresponding to the limiting cone, and the limiting portion is located above the expansion curve portion.

[0019] Preferably, the O-ring expansion assembly cylinder is a double-stroke cylinder;

[0020] Or the O-ring expansion assembly cylinder includes an O-ring assembly cylinder and an O-ring expansion cylinder, the O-ring assembly cylinder is fixedly mounted on the removal mechanism, the O-ring expansion cylinder is fixedly mounted on the movable end of the O-ring assembly cylinder, and the expansion push rod is fixedly mounted on the movable end of the O-ring expansion cylinder.

[0021] Preferably, a vertically arranged assembly lifting slide rail is installed on the expansion assembly plate near the position of the O-ring expansion cylinder, and an assembly lifting slide groove matching the assembly lifting slide rail is fixedly installed on the O-ring expansion cylinder. Beneficial effects

[0022] The beneficial effects produced by the technical solution of the present invention are as follows:

[0023] (1) The expansion assembly mechanism, the induction dislocation mechanism and the removal mechanism are used in combination to remove the O-ring from the induction dislocation mechanism and install it on the turntable carrier, realizing the four-in-one functions of automatic loading, taking, expansion and assembly, improving the utilization rate, and having the characteristics of less movement, high efficiency, beautiful and compact structure, etc., which can be widely used in the assembly of external pressure O-rings in various industries.

[0024] (2) The expansion piece and the expansion push rod are matched, and the expansion push rod is used to slide downward to expand the expansion piece, so that the expansion claw removes the O-ring from the induction dislocation mechanism, and then the expansion push rod is used to slide downward to push the O-ring off the expansion claw and install it on the turntable carrier, thereby achieving the effect of automatic expansion and assembly of the O-ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a three-dimensional structural diagram of a preferred O-ring automatic feeding and assembly device of the present invention;

[0027] Figure 2 This is a three-dimensional structural diagram of a preferred induction dislocation mechanism of the present invention;

[0028] Figure 3 This is a three-dimensional structural diagram of a preferred O-ring retaining cover of the present invention;

[0029] Figure 4 This is a three-dimensional structural diagram of the preferred induction dislocation mechanism of the present invention after removing the O-ring blocking cover;

[0030] Figure 5 This is the preferred three-dimensional structure of the removal mechanism of the present invention Figure 1 ;

[0031] Figure 6 This is the preferred three-dimensional structure of the removal mechanism of the present invention Figure 2 ;

[0032] Figure 7 It is the preferred expansion assembly mechanism of the present invention. Figure 1 ;

[0033] Figure 8 It is the preferred expansion assembly mechanism of the present invention. Figure 2 ;

[0034] Figure 9 This is a diagram showing the relationship between the preferred expansion mandrel and expansion sheet combination of the present invention;

[0035] Figure 10 This is a three-dimensional structural diagram of a preferred expansion sheet of the present invention;

[0036] Figure 11 This is a three-dimensional structural diagram of a preferred expansion push rod of the present invention. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention for which protection is sought, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] This embodiment uses an expansion assembly mechanism, an inductive dislocation mechanism, and a removal mechanism to cooperate, remove the O-ring from the inductive dislocation mechanism and install it on the turntable carrier, realizing the four-in-one functions of automatic loading, retrieving, expansion, and assembly, improving the utilization rate, and having the characteristics of less movement, high efficiency, and a beautiful and compact mechanism. It can be widely used in the assembly of external pressure O-rings in various industries. The specific implementation is as follows:

[0039] like Figure 1 and 2 As shown, the automatic feeding and assembly device for O-rings includes a feeding mechanism 1, an inductive dislocation mechanism 2 and a turntable carrier 5, and an expansion assembly mechanism 4 for removing the O-ring from the inductive dislocation mechanism and installing it on the turntable carrier is installed above the inductive dislocation mechanism 2 and the turntable carrier 5, and a removal mechanism 3 for transferring the expansion assembly mechanism 4 from the O-ring 100 removal position directly above the inductive dislocation mechanism 2 to the O-ring 100 assembly position directly above the turntable carrier 5, and the expansion assembly mechanism 4 is fixedly installed on the removal mechanism 3.

[0040] The feeding mechanism 1 includes an O-shaped vibration plate 11, a direct vibration mounting plate 12, a direct vibration plate 13, and an O-ring material channel 14. One end of the O-ring material channel 14 is fixedly mounted at the outlet of the O-shaped vibration plate 11, and the other end is fixedly mounted at the inlet of the inductive dislocation mechanism 2. The lower surface of the O-ring material channel 14 is mounted on the direct vibration plate 13, and the direct vibration plate 13 is mounted on the direct vibration mounting plate 12. The O-ring 100 is fed into the inductive dislocation mechanism 2 through the O-shaped vibration plate 11 and the O-ring material channel 14 for positioning.

[0041] like Figures 2 to 4 As shown, the sensing dislocation mechanism 2 is mainly used to sense and position the O-ring after it is in place, facilitating its transfer by the expansion assembly mechanism 4. The sensing dislocation mechanism 2 includes a sensing dislocation mounting plate 21, an O-ring positioning block 22, an O-ring positioning sensing assembly 23, an O-ring ejector assembly 24, and an O-ring retaining assembly 25. The O-ring positioning block 22 is mounted on the upper surface of the sensing dislocation mounting plate 21. The upper surface of the O-ring positioning block 22 is formed with an O-ring accommodating area for holding the O-ring 100 when it is in place. A lifting hole (not shown in the figure) is formed in the O-ring in the vacant O-ring area and vertically penetrates the O-ring positioning block 22.

[0042] The O-ring ejector assembly 24 includes an O-ring ejector 241 and an ejector lifting cylinder 242. The ejector lifting cylinder 242 is fixedly mounted on the induction misalignment mounting plate 21. The O-ring ejector 241 is fixedly mounted on the movable end of the ejector lifting cylinder 242 and the top can pass through the lifting hole to lift the O-ring 100. The O-ring stopper assembly 25 includes an O-ring stopper cover 251, a cover mounting guide rail 252 and a stopper cover shifting cylinder 253. The stopper cover shifting cylinder 253 is fixedly mounted on the induction misalignment mounting plate 21, and the O-ring material blocking cover 251 is fixedly mounted on the movable end of the material blocking cover shift cylinder 253 through the cover mounting guide rail 252. The O-ring material blocking cover 251 includes a guide rail mounting portion 254 and a material blocking portion 255 for blocking material. The material blocking portion 255 is mounted on the cover mounting guide rail 252 through the guide rail mounting portion 254, and a material blocking groove 256 for blocking material is formed on the lower surface of the material blocking portion 255.

[0043] The O-ring in place sensing component 23 sends optical fiber and senses whether there is an O-ring in the O-ring accommodating area. If there is an O-ring, the feeding mechanism is controlled to stop feeding, and the O-ring push rod assembly is made to lift the O-ring to a suitable position. The suitable position can be the position where the O-ring push rod assembly just contacts the bottom of the material retaining groove, or it can be a position above it, that is, the O-ring push rod assembly lifts the O-ring and the O-ring material retaining cover together. The O-ring in place sensing component 23 here can be an optical fiber sensor.

[0044] Specifically, the mounting relationship between the cover plate mounting guide rail 252 and the material stop cover plate shift cylinder 253 can be: a guide rail mounting seat 257 is installed at the movable end of the material stop cover plate shift cylinder 253, and the cover plate mounting guide rail 252 is slidably mounted on the guide rail mounting seat 257 and can move in the vertical direction. This is mainly to facilitate the lifting of the O-ring. When the O-ring material stop cover plate 251 and the cover plate mounting guide rail 252 are both required to be lifted equally, so the cover plate mounting guide rail 252 needs to be able to slide up and down relative to the material stop cover plate shift cylinder 253. Moreover, after the lifting force of the O-ring push rod assembly is removed, the O-ring material stop cover plate 251 and the cover plate mounting guide rail 252 need to slide downward to return to their initial position. Here, a counterweight 258 can be installed below the cover plate mounting guide rail 252.

[0045] like Figure 5 and 6As shown, the removal mechanism is used to move the expansion assembly mechanism 4 back and forth between the O-ring 100 removal position directly above the inductive dislocation mechanism 2 and the O-ring 100 assembly position directly above the turntable carrier 5, thereby removing the O-ring 100. Specifically, the removal mechanism 3 includes a removal frame 31, a horizontal removal component 32 for controlling the horizontal movement of the expansion assembly mechanism 4, and an expansion assembly lifting component 33 for controlling the lifting of the expansion assembly mechanism. The horizontal removal component 32 is fixedly mounted on the removal frame 31, the expansion assembly lifting component 4 is fixedly mounted on the movable end of the horizontal removal component 32, the expansion assembly mechanism 4 is fixedly mounted on the movable end of the expansion assembly lifting component 33, the inductive dislocation mounting plate 21 is fixedly mounted on the removal frame 31, and the expansion assembly lifting component 33 is located directly above the inductive dislocation mounting plate 21.

[0046] The horizontal transfer assembly 32 includes a horizontal transfer cylinder 321 and a transfer mounting plate 322. The horizontal transfer cylinder 321 is fixedly mounted on the transfer frame 31 through the transfer mounting plate 322. The expansion assembly lifting assembly 33 includes a lifting mounting plate 331, an expansion assembly lifting cylinder 332 and a lifting limit plate 333. The lifting mounting plate 331 is fixedly mounted on the movable end of the horizontal transfer cylinder 321. The expansion assembly lifting cylinder 332 is fixedly mounted on the lifting mounting plate 331. The lower surface of the lifting limit plate 333 is fixedly mounted on the movable end of the expansion assembly lifting cylinder 332. The expansion assembly mechanism 4 is fixedly mounted on the lower surface of the lifting limit plate; a horizontal transfer slide groove 323 is also installed on the surface of the side where the horizontal transfer cylinder 321 is installed on the transfer mounting plate 322. A horizontal transfer slide rail 334 that cooperates with the horizontal transfer rail 323 is installed on the lifting mounting plate 331 at a position corresponding to the horizontal transfer rail 323.

[0047] A limit block 324 for limiting the horizontal moving direction is also installed on the surface of one side of the horizontal moving cylinder 321 installed on the moving mounting plate 322. A limit opening 335 for cooperating with the limit block 324 for limiting the position is formed in the area corresponding to the limit block 324 on the lifting mounting plate 331. When the lifting mounting plate 322 moves horizontally a certain distance, the limit opening 335 will limit the limit block 324 in the horizontal direction to prevent it from continuing to move horizontally.

[0048] A movable limiting pad 325 is installed on the limiting opening 335 or the limiting block 324. One end of the movable limiting pad 325 is fixedly installed on the limiting opening 335 or the limiting block 325, and the other end is a free end. When the lifting mounting plate 331 moves horizontally to the limited position, its free end is against the limiting block 325 or the limiting opening 335; here, there are two movable limiting pads 325, which are respectively arranged at both ends of the limiting opening 335.

[0049] The lifting mounting plate 331 is located in the middle position between the expansion assembly lifting cylinder 332 and the expansion assembly mechanism 4; a movable limiting pad 325 is installed on the lifting limit plate 333 at a position corresponding to the lifting mounting plate 331. One end of the movable limiting pad 325 is fixedly mounted on the lifting limit plate 333, and the other end is a free end. When the lifting limit plate 333 moves up and down to a limited position, its free end abuts against the lifting mounting plate 331 to achieve the purpose of limiting.

[0050] like Figures 7 to 11 As shown, the expansion assembly mechanism removes the O-ring from the induction dislocation mechanism and installs it on the turntable carrier. Specifically, the expansion assembly mechanism 4 includes an expansion assembly plate 41, an O-ring expansion assembly cylinder 42, an expansion ejector 43, an expansion sheet guide seat 44, and an expansion sheet 45. The O-ring expansion assembly cylinder 42 is fixedly mounted on the removal mechanism 3, and the expansion ejector 43 is fixedly mounted on the movable end of the O-ring expansion assembly cylinder 42.

[0051] A vertical lifting slot 336 is installed on the expansion assembly plate 41 near the lifting installation plate 331 , and a vertical lifting rail 337 cooperating with the lifting slot 336 is installed at a position corresponding to the lifting installation plate 331 .

[0052] The expansion sheet guide seat 44 is fixedly mounted on the expansion assembly plate 41 directly below the O-ring expansion assembly cylinder 42, and a circular through hole (not shown) is vertically opened at its center, and the lower end of the expansion ejector rod 43 is disposed inside the circular through hole;

[0053] There are more than three expansion sheets 45 evenly distributed on the expansion sheet guide seat 44 along the circumferential direction of the circular through hole. Here, the preferred number of expansion sheets is 4. The upper part of each expansion sheet 45 is installed on the expansion sheet guide seat 44 through a rotating shaft 451 and can rotate along the axial direction of the rotating shaft 451. The lower end of the expansion sheet 45 is formed with an expansion claw 452 for removing the O-ring 100 from the O-ring push rod 241.

[0054] like Figure 10As shown, an expansion curve portion 453 is formed on one side of each expansion piece 45 close to the circular through hole for pressing against the lower end of the expansion push rod 43;

[0055] When the lower end of the expansion push rod presses against the expansion curve portion and moves downward, the expansion piece will expand outward, and the expansion claws at the lower ends of the multiple expansion pieces cooperate to remove the O-ring from the induction misalignment mechanism.

[0056] The expansion curve portion 453 extends from top to bottom toward the expansion ejector pin 43 .

[0057] A knockout curve portion 454 is formed on the expansion sheet 45 below the expansion curve portion 453 and presses against the lower end of the expansion push rod 43.

[0058] When the lower end of the expansion ejector pin continues to move downward after the ring-unloading curve portion, the lower end surface of the expansion ejector pin contacts the O-ring and ejects it from the expansion claw.

[0059] like Figure 11 As shown, the lower end of the expansion rod 43 is formed with an outwardly expanding expansion abutment portion 431. When the expansion rod moves downward, the expansion abutment portion abuts against the expansion curve portion of the expansion sheet and moves downward to expand the expansion sheet 45 outward.

[0060] The expansion push portion 431 on the expansion push rod 43 extends upward with a cylindrical stripping push portion 432. When the expansion push rod completes expansion and continues to move downward, the stripping push portion presses against the ring-demolition curve of the expansion sheet, and the lower end face of the expansion push rod contacts the O-ring and pushes it out from the expansion claw.

[0061] When the O-ring is in the expansion claw, the lower end of the expansion push rod needs to contact the O-ring and push it out of the expansion claw. However, the outer surface of the expansion push rod presses against the inner edge of the expansion plate, which is supported by the inner edge of the O-ring. If the expansion push rod moves downward, the outer surface of the expansion push rod will be trapped inside the O-ring and lose contact with it.

[0062] Here, a vertical strip opening 433 is formed at the lower end of the expansion push rod 43, below the expansion abutment portion 431, corresponding to each expansion piece 45. These vertical strip openings 433 are evenly spaced along the circumference of the expansion push rod 43. The number of these vertical strip openings is equal to the number of expansion pieces, and when the expansion push rod moves downward, the expansion piece's edge near the expansion push rod is within the vertical strip opening. This ensures that when the expansion push rod moves downward to the O-ring position, its lower end surface is directly above the O-ring, allowing the O-ring to be ejected from the expansion claw.

[0063] A return spring 455 in a compressed state is provided between the upper end of the expansion piece 45 and the expansion piece guide seat 44 . The connection position between the return spring 455 and the upper end of the expansion piece 45 is located above the rotating shaft 451 .

[0064] Here, since it is necessary to be able to continuously remove the O-ring from the O-ring ejector rod and transfer it to the turntable carrier, the expansion piece needs to be able to return to its initial position when the expansion ejector rod moves upward. That is, a return spring can be provided between the upper end of the expansion piece and the expansion piece guide seat to apply force to the expansion piece, causing the expansion piece to contract inwardly along the axis of the rotating shaft. Preferably, a return spring is used, that is, a spring that handles the compressed state, and the connection position between the return spring and the upper end of the expansion piece is above the rotating shaft.

[0065] A limiting cone 441 is provided in the middle of the expansion plate guide seat 44 for limiting the return of the return spring. A limiting portion 456 is formed on the expansion plate 45 at a position corresponding to the limiting cone 441 . The limiting portion 456 is located above the expansion curve portion 453 .

[0066] Here, the O-ring expansion assembly cylinder 42 is a double-stroke cylinder; or the O-ring expansion assembly cylinder 42 includes an O-ring assembly cylinder 421 and an O-ring expansion cylinder 422, the O-ring assembly cylinder 421 is fixedly mounted on the removal mechanism 3, the O-ring expansion cylinder 422 is fixedly mounted on the movable end of the O-ring assembly cylinder 421, and the expansion push rod 43 is fixedly mounted on the movable end of the O-ring expansion cylinder 422.

[0067] A vertically arranged assembly lifting rail 411 is installed on the expansion assembly plate 41 near the O-ring expansion cylinder 422 , and an assembly lifting slot 423 matching the assembly lifting rail 411 is fixedly installed on the O-ring expansion cylinder 422 .

[0068] like Figure 4 As shown, the top of the O-ring push rod 241 includes an O-ring placement platform 243 for placing the O-ring thereon, and the middle of the O-ring placement platform 243 is upwardly protruded to form an O-ring limiting protrusion 244. When the O-ring is placed on the O-ring placement platform, the O-ring limiting protrusion 244 is sleeved inside the O-ring to prevent the O-ring from shifting on the O-ring push rod 241; the top of the O-ring push rod 241 is formed with more than three ring removal openings 245 along the circumferential direction of the O-ring push rod 241, and the ring removal openings 244 extend downward from the O-ring limiting protrusion 245 to a position below the O-ring placement platform 243.

[0069] Here, the number of expansion pieces 45 is equal to the number of ring removal openings 245. When removing the O-ring from the O-ring push rod 241, the expansion claw 45 moves downward in the corresponding ring removal opening to pass through the O-ring to its lower position, and then the expansion claw 45 expands outward to make the O-ring detach from the top of the O-ring push rod 241, and then moves upward or the O-ring push rod moves downward to remove the O-ring from the O-ring push rod.

[0070] like Figure 1 As shown, the turntable carrier 5 includes a divider 51, a turntable 52 and a jig 53 evenly distributed on the upper surface of the turntable 52 near the outer circumference, and a jig shaft 54 ​​is installed on the jig 53. After the expansion piece 45 removes the O-ring 100 from the O-ring push rod 241, it will be moved to the top of the jig shaft 54 ​​by the expansion assembly lifting cylinder and the horizontal transfer cylinder, and the O-ring expansion cylinder and the O-ring assembly cylinder are used to drive the expansion push rod to move downward to push the O-ring out from the expansion claw and put it on the jig shaft 54. The turntable is installed on the divider 51 and is driven by the divider to realize the rotation assembly of products.

[0071] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. An O-ring automatic feeding and assembly device, characterized in that: The device comprises a feeding mechanism, an inductive dislocation mechanism and a turntable carrier in sequence. An expansion assembly mechanism for removing the O-ring from the inductive dislocation mechanism and installing it on the turntable carrier and a removal mechanism for transferring the expansion assembly mechanism from the O-ring removal position directly above the inductive dislocation mechanism to the O-ring assembly position directly above the turntable carrier are installed above the inductive dislocation mechanism and the turntable carrier. The expansion assembly mechanism is fixedly mounted on the removal mechanism. The feeding mechanism includes an O-shaped vibration plate, a direct vibration mounting plate, a direct vibration and an O-ring material channel. One end of the O-ring material channel is fixedly mounted at the outlet of the O-shaped vibration plate, and the other end is fixedly mounted at the inlet of the induction dislocation mechanism. The lower surface of the O-ring material channel is mounted on the direct vibration, and the direct vibration is mounted on the direct vibration mounting plate. The expansion assembly mechanism includes an expansion assembly plate, an O-ring expansion assembly cylinder, an expansion ejector, an expansion sheet guide seat, and an expansion sheet. The O-ring expansion assembly cylinder is fixedly mounted on the removal mechanism, and the expansion ejector is fixedly mounted on the movable end of the O-ring expansion assembly cylinder. The expansion sheet guide seat is fixedly mounted on the expansion assembly plate directly below the O-ring expansion assembly cylinder, with a circular through hole formed in the center thereof in the vertical direction, and the lower end of the expansion ejector rod is disposed inside the circular through hole; The expansion piece guide seat is provided with more than three expansion pieces evenly distributed along the circumference of the circular through hole. The upper portion of each expansion piece is mounted on the expansion piece guide seat via a rotating shaft and can rotate along the axis of the rotating shaft. The lower end of the expansion piece is formed with an expansion claw for removing the O-ring from the O-ring ejector rod. An expansion curve portion is formed on one side of each expansion piece close to the circular through hole and is used to press against the lower end of the expansion push rod; When the lower end of the expansion push rod presses against the expansion curve portion and moves downward, the expansion sheet will expand outward, and the expansion claws at the lower ends of the multiple expansion sheets cooperate to remove the O-ring from the induction dislocation mechanism; a ring-dropping curve portion is formed on the expansion sheet below the expansion curve portion, pressing against the lower end of the expansion push rod; When the lower end of the expansion ejector pin continues to move downward after the ring-unloading curve portion, the lower end surface of the expansion ejector pin contacts the O-ring and ejects it from the expansion claw.

2. The O-ring automatic feeding and assembly device according to claim 1, characterized in that: The lower end of the expansion rod is formed with an expansion abutment portion with an outwardly expanded diameter. When the expansion rod moves downward, the expansion abutment portion abuts against the expansion curve portion of the expansion sheet and moves downward to expand the expansion sheet outward.

3. The O-ring automatic feeding and assembly device according to claim 2, characterized in that: The expansion push portion on the expansion push rod has a cylindrical stripping push portion extending upward. When the expansion push rod completes expansion and continues to move downward, the stripping push portion presses against the ring-dropping curve portion of the expansion sheet, and the lower end face of the expansion push rod contacts the O-ring and pushes it out from the expansion claw.

4. The O-ring automatic feeding and assembly device according to claim 3, characterized in that: A vertical strip opening is formed at the lower end of the expansion mandrel, located below the expansion abutment portion and corresponding to each expansion piece, and the vertical strip openings are evenly arranged along the circumferential direction on the expansion mandrel.

5. The O-ring automatic feeding and assembly device according to claim 4, characterized in that: A return spring in a compressed state is provided between the upper end portion of the expansion piece and the expansion piece guide seat, and the connection position between the return spring and the upper end portion of the expansion piece is located above the rotating shaft.

6. The O-ring automatic feeding and assembly device according to claim 5, characterized in that: A limiting cone is provided in the middle of the expansion piece guide seat for limiting the return of the return spring. A limiting portion is formed on the expansion piece at a position corresponding to the limiting cone, and the limiting portion is located above the expansion curve portion.

7. The O-ring automatic feeding and assembly device according to claim 6, characterized in that: The O-ring expansion assembly cylinder is a double-stroke cylinder; Or the O-ring expansion assembly cylinder includes an O-ring assembly cylinder and an O-ring expansion cylinder, the O-ring assembly cylinder is fixedly mounted on the removal mechanism, the O-ring expansion cylinder is fixedly mounted on the movable end of the O-ring assembly cylinder, and the expansion push rod is fixedly mounted on the movable end of the O-ring expansion cylinder.

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