Oil sprayer gasket prepressing and sorting equipment

Abstract

The invention discloses oil sprayer gasket prepressing and sorting equipment, and relates to the technical field of oil sprayer gasket prepressing and sorting, the oil sprayer gasket prepressing and sorting equipment comprises a bottom plate and a hydraulic push rod, the oil sprayer gasket prepressing and sorting equipment further comprises a working table, the working table is fixedly installed in the middle of the top end of the bottom plate, and the hydraulic push rod is fixedly installed on the right side of the top of the working table; and the pre-pressing mechanism is installed on the bottom plate through bolts, the pre-pressing mechanism is installed behind the workbench, and the pre-pressing mechanism is used for pre-pressing the gasket. According to the oil sprayer gasket pre-pressing and sorting equipment, through the structural design of the pre-pressing mechanism, under the positioning, matching and guiding effects of a sliding table, a guiding base and a triangular pressing plate, automatic fixing and alignment of a pre-pressing ring can be achieved, and the situation that in the gasket pre-pressing period, the precision difference of alignment and guiding of all gaskets is too large is prevented; and therefore, the uniformity and the precision of the pre-pressing machining precision of the gaskets in the same batch are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of preloading and sorting of injector gaskets, and specifically relates to an injector gasket preloading and sorting device. Background Art

[0002] Injectors are widely used in engines, and the gaskets of injectors are one of the important components to ensure their normal operation; when manufacturing injectors, the preloading and sorting of gaskets is a key process, which directly affects the sealing performance and stability of injectors; traditional preloading and sorting methods usually rely on manual assistance, and there are the following problems: since the pressure rod has to return to the initial position again for each preloading of a pair of gaskets, it not only consumes the preloading time, but also seriously lengthens the preloading path of the pressure rod, causing the pressure rod to make excessive useless return movements, and also increasing the preloading accuracy when the pressure rod descends, and unable to standardize and guide each preloading action, often resulting in different degrees of deviation in the accuracy of the gaskets preloaded and sorted in the same batch, which not only affects the preloading and sorting efficiency of the gaskets, but also seriously affects the sorting quality of the gaskets in the subsequent sorting steps. Summary of the Invention

[0003] To solve the above technical problems, the present invention is realized through the following technical solutions: an injector gasket preloading and sorting device, including a bottom plate and a hydraulic push rod, and the injector gasket preloading and sorting device further includes:

[0004] A workbench, which is fixedly installed in the middle of the top of the bottom plate, and the hydraulic push rod is fixedly installed on the right side of the top of the workbench;

[0005] A preloading mechanism, which is bolted to the bottom plate and is installed behind the workbench, and the preloading mechanism is used for preloading the gasket;

[0006] A sorting mechanism, which is installed on the bottom plate and is installed on the left side of the workbench, and the sorting mechanism is used for sorting the gaskets;

[0007] Among them, the workbench includes a platform fixedly installed on the bottom plate, and a telescopic locking mechanism is installed on the platform. The telescopic locking mechanism is used for bouncing up and down in the vertical axis to automatically eject the gasket. A three-leg frame is installed on the top of the telescopic locking mechanism. The three-leg frame is inserted into the top of the platform. The three-leg frame is blocked directly above the telescopic locking mechanism. The three-leg frame is used for clamping and positioning the gasket;

[0008] The preloading mechanism includes a triangular pressure plate, and the triangular pressure plate is installed directly above the three-leg frame. The triangular pressure plate is used for aligning and stabilizing the three-leg frame.

[0009] Preferably, the workbench further includes a boss fixedly installed at the bottom of the platform. At each of the three corners at the top of the three-leg frame, a chuck is fixedly installed. A latch is installed in the middle of the chuck, and the latch is inserted into the triangular pressure plate in alignment. A preloading ring is assembled on the three-leg frame, and the preloading ring is clamped on the three-leg frame through the chuck.

[0010] Preferably, the workbench further includes:

[0011] a clamping member installed at the middle of the top end of the preloading ring. The clamping member includes a ring shell fixedly installed on the preloading ring. Along the circumference inside the ring shell, three groups of positioning members are evenly distributed. At the bottom end of the preloading ring, a DD motor is fixedly installed. The output end of the DD motor penetrates through the preloading ring and extends out from the ring shell;

[0012] Wherein, a straight rod and a spring are fixedly connected to the bottom of the DD motor. The spring surrounds the straight rod. The preloading ring is inserted into the three-leg frame through the cooperation of the straight rod and the spring. The bottom of the spring is fixedly connected to the three-leg frame. The spring is used to drive the preloading ring to bounce up and down on the top of the three-leg frame after being pressed, so as to achieve the emergency buffering effect on the instantaneous preloading impact force.

[0013] Preferably, the positioning member includes three groups of arc-shaped clamping claws installed inside the ring shell, which are used to centrally align and clamp the gasket in three directions; the free end of the arc-shaped clamping claw is fixedly connected with a rubber clamp for directly clamping and contacting the outer surface of the gasket. The non-free end of the arc-shaped clamping claw is sleeved on the output end of the DD motor. That is to say, the end of the arc-shaped clamping claw away from the rubber clamp is sleeved on the output end of the DD motor, and a torsion spring is installed at the part where the arc-shaped clamping claw is sleeved on the output end of the DD motor, which can provide a counterclockwise torsional resistance for the arc-shaped clamping claw through the torsion spring. When the arc-shaped clamping claw encounters a reverse impact force, the arc-shaped clamping claw has an elastic rotation buffering effect to achieve self-protection of the arc-shaped clamping claw.

[0014] Preferably, a first folding baffle is fixedly connected between the middle of the arc-shaped clamping claw and the ring shell, and a second folding baffle is fixedly connected between the rubber clamp and the ring shell. Both the first folding baffle and the second folding baffle are made of elastic and thin fabrics, which are convenient for folding and storage, do not occupy space, and do not prevent the arc-shaped clamping claw from unfolding and storing inside the ring shell. The first folding baffle and the second folding baffle are jointly used to block foreign objects from entering between the arc-shaped clamping claw and the ring shell.

[0015] Preferably, the telescopic locking mechanism includes a guide rail locking member inserted into the top of the workbench. A ramp pressure rod is installed inside the guide rail locking member, and the bottom of the ramp pressure rod abuts against the boss. The ramp pressure rod is elastically telescopically locked with the guide rail locking member through the boss. The middle of the top end of the ramp pressure rod is fixedly connected with a top head, and a socket is inserted into the top of the top head. The top of the socket is inserted into the middle of the preloading ring. A notch is formed on the top side of the ramp pressure rod, and the top of the ramp pressure rod is inclined towards the notch. A stop block is fitted and installed in the notch. Among them, in the initial state of the ramp pressure rod, it is retracted and locked in the guide rail locking member, and the top of the top head does not directly contact the bottom of the socket, leaving sufficient space for debris to fall between the two.

[0016] Preferably, the preloading mechanism includes a frame fixedly installed on the bottom plate. A sliding table is installed on the frame, and a hydraulic cylinder is fixedly installed on the top of the frame. The output end of the hydraulic cylinder is fixedly connected with a pressure rod, and the pressure rod and the socket are located on the same axis. A guiding seat is threadedly installed on the sliding table, and the guiding seat is vertically lifted and lowered with the frame through the sliding table. The pressure rod passes through the guiding seat. The side of the guiding seat facing away from the hydraulic cylinder is threadedly installed with the top of a triangular pressing plate. The pressure rod and the center of the triangular pressing plate are aligned. The triangular pressing plate is used to vertically guide the pressure rod. Through holes are formed in the centers of the guiding seat and the triangular pressing plate, and the diameters of the two through holes gradually decrease, and the diameter of the smallest through hole is equal to the outer diameter of the pressure rod.

[0017] Preferably, the preloading mechanism further includes:

[0018] A protection member assembled at the bottom end of the pressure rod. The protection member has a rubber pad installed in the middle of the bottom end of the pressure rod. A cross pressing plate is fitted and installed at the bottom of the rubber pad. A telescopic elastic rod passes through the rubber pad and is connected to the top of the cross pressing plate. Small springs are fixedly installed around the telescopic elastic rod, and the tops of the small springs are fixedly connected to the pressure rod. The rubber pad is elastically inserted into the pressure rod through the telescopic elastic rod and the small springs. Under the action of its own weight, the cross pressing plate protrudes from the bottom end of the pressure rod, and can contact the gasket one step ahead of the pressure rod to perform flexible pre-positioning on the gasket.

[0019] Preferably, the sorting mechanism includes an inclined guide plate fixedly installed on the left side of the top of the workbench. The inclined guide plate is inclined downward to the left as a whole. The middle of the bottom end of the inclined guide plate is threadedly connected with an inclined conduit. Three storage cylinders are arranged side by side and clamped on the left side of the top of the bottom plate. A waste cylinder is installed in front of the storage cylinders and is threadedly installed on the bottom plate. Among them, a leakage port is formed at the bottom of the front end of the inclined conduit, and the leakage port is aligned directly above the waste cylinder for guiding defective gaskets into the waste cylinder.

[0020] Preferably, a branch pipe and a magnetic suction pipe are installed between the storage cylinder and the inclined conduit. The branch pipe is fixedly connected to the bottom of the inclined conduit, and a blanking valve is installed at the connection between the branch pipe and the inclined conduit. The number of the blanking valves is three groups, and the valve orifice diameters of the three groups of blanking valves gradually increase from back to front. The blanking valve is used for sorting gaskets of different models. One end of the magnetic suction pipe is fixedly connected to the storage cylinder, and the other end of the magnetic suction pipe is magnetically installed on the branch pipe.

[0021] The present invention provides an injector gasket preloading and sorting device, which has the following beneficial effects:

[0022] First, through the structural design of the preloading mechanism, the injector gasket preloading and sorting device can, under the positioning and guiding cooperation of the sliding table, the guiding seat and the triangular pressing plate, realize the autonomous fixation and alignment of the preloading ring, preventing the phenomenon that the alignment accuracy of each gasket during preloading is too different, resulting in a large number of gaskets being unusable, and ensuring the unity and accuracy of the preloading processing accuracy of gaskets in the same batch.

[0023] Second, the injector gasket preloading and sorting device can realize the continuous alignment processing of preloading gaskets in the same batch. It is not necessary to calibrate the central positions of the preloading ring and the gasket every time, nor to calibrate the guiding path of the pressing rod every time a gasket is processed. Instead, it can autonomously and uniformly standardize the vertical stamping guiding path of the pressing rod, and realize the artificial judgment of whether the pressing rod is in the vertical stamping operation state. When the pressing rod cannot smoothly pass through the central axis path guided by the guiding seat and the triangular pressing plate, it can immediately be judged that there is a fault in the hydraulic cylinder or the pressing rod, and timely maintenance and calibration are required, effectively reducing the defective rate of gaskets.

[0024] Third, through the short-distance lifting operation of the pressing rod quickly rising between the guiding seat and the triangular pressing plate, the injector gasket preloading and sorting device can protect the pressing rod, prevent the pressing rod from hindering the upward extension of the inclined pressing rod, avoid scratching the top of the gasket by the pressing rod, and at the same time facilitate the hydraulic push rod to laterally export the gasket from between the triangular pressing plate and the preloading ring to the inclined guide plate. While ensuring the pressing accuracy of the pressing rod, the required path for the continuous preloading action of the pressing rod is shortened above the triangular pressing plate, facilitating the continuous and rapid preloading processing of gaskets, shortening the preloading processing time for each gasket, and improving the batch processing efficiency of the device for gaskets.

[0025] IV. The injector gasket preloading and sorting equipment blocks the bottom of the ramp lever through the boss, providing a safety limit and shielding for the contraction and locking depth of the ramp lever function within the guide rail locking part, preventing the ramp lever from being overly pressed by the pressing lever and causing damage to the internal structural components of the guide rail locking part, ensuring the automatic ejection function of the gasket after preloading by the telescopic locking mechanism, facilitating the continuous preloading, ejection, and sorting operations of the gasket in cooperation with the hydraulic push rod, and realizing the automatic connection of the preloading and sorting steps.

[0026] V. The injector gasket preloading and sorting equipment connects the arc-shaped claws to the inner side of the ring shell through the first folding stop and the second folding stop, which can effectively block the gap between the arc-shaped claws and the ring shell, prevent debris from directly entering and affecting the fitting and storage of the arc-shaped claws on the inner side of the ring shell, and ensure the synchronous rotation angle range of the three groups of arc-shaped claws for the gasket and the center positioning function for the gasket.

[0027] VI. The injector gasket preloading and sorting equipment uses the rubber clamp as the contact structure between the arc-shaped claw and the gasket to achieve flexible positioning and clamping of the gasket surface. While avoiding scratching the gasket surface, it can also buffer, guide, and disperse the impact force from the gasket during the preloading of the gasket by the pressing lever, preventing the arc-shaped claw from directly suffering the impact and losing the positioning accuracy.

[0028] VII. The injector gasket preloading and sorting equipment, by combining the installation of the torsion spring on the arc-shaped claw and the output end of the DD motor, enables the arc-shaped claw to make a counterclockwise twisting detachment and a clockwise rebounding self-protection action after suffering the impact force from the pressing lever on the gasket during the clamping of the gasket by the arc-shaped claw, so as to cut off the guidance of the impact force on the arc-shaped claw in a short time, realize self-protection of the arc-shaped claw, ensure the normal use of the arc-shaped claw. After the anti-vibration ends, the three groups of arc-shaped claws will re-achieve the center positioning and clamping state of the gasket under the autonomous clockwise rebounding action of the torsion spring, protecting the arc-shaped claw without affecting the positioning and clamping function of the gasket.

[0029] VIII. The injector gasket preloading and sorting equipment can effectively clamp and limit the preloading ring on the three-leg frame through the chuck. While realizing the elastic installation of the preloading ring on the three-leg frame via the straight rod and the spring, the preloading ring can make vertical up-and-down elastic adjustment within the height restricted by the chuck. At the same time, the socket fitted in the middle of the preloading ring can also move up and down between the bottom of the preloading ring and the hollow structure in the middle of the three-leg frame following the up-and-down movement of the preloading ring. Using this elastic structure can reduce the impact during preloading of the gasket and achieve elastic buffer protection for the preloading ring.

[0030] IX. The injector gasket preloading and sorting equipment utilizes the approximate triangular structural profile design of the three-leg frame and the preloading ring, enabling the three-leg frame and the preloading ring to stably share and balance the impact force from the pressure rod. With the help of the workbench, the dispersed impact force is transmitted to the bottom plate, thereby avoiding the shaking problem of the preloading ring containing the gasket during the preloading operation and ensuring the positioning accuracy and preloading accuracy of the preloading ring for the gasket. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic external structure diagram of an injector gasket preloading and sorting equipment of the present invention;

[0032] Figure 2 It is a schematic structure diagram of the workbench of the present invention;

[0033] Figure 3 It is a partial disassembled structure diagram of the preloading ring and the telescopic locking mechanism of the present invention;

[0034] Figure 4 It is a schematic assembled structure diagram of the preloading ring and the socket head of the present invention;

[0035] Figure 5 It is a schematic top structure diagram of the pressure rod of the present invention;

[0036] Figure 6 It is a schematic bottom structure diagram of the preloading ring of the present invention;

[0037] Figure 7 It is a schematic contraction structure diagram of the positioning member inside the preloading ring of the present invention;

[0038] Figure 8 It is a schematic clamping and positioning structure diagram of the positioning member for the gasket of the present invention;

[0039] Figure 9 It is a partial disassembled structure diagram of the arc-shaped clamping jaw and the output end of the DD motor of the present invention;

[0040] Figure 10 It is a schematic assembled structure diagram of the sorting mechanism, the bottom plate and the workbench of the present invention;

[0041] Figure 11 It is a partial structure diagram of the sorting mechanism of the present invention;

[0042] Figure 12 It is a partial structure diagram of the preloading mechanism of the present invention;

[0043] Figure 13 It is a partial disassembled structure diagram of the rubber pad and the pressure rod of the present invention.

[0044] In the figure: 1, bottom plate; 2, workbench; 3, pre-pressing mechanism; 4, sorting mechanism; 5, hydraulic push rod; 21, platform; 22, boss; 23, telescopic locking mechanism; 24, three-leg frame; 25, chuck; 26, pre-pressing ring; 27, ring shell; 28, positioning part; 29, DD motor; 210, straight rod; 231, guide rail locking part; 232, ramp pressure rod; 233, socket; 234, top head; 235, stop block; 281, arc-shaped clamping jaw; 282, rubber clamp; 283, first folding stop; 284, second folding stop; 285, torsion spring; 41, inclined guide plate; 42, inclined catheter; 43, storage cylinder; 44, waste cylinder; 45, branch pipe; 46, blanking valve; 47, magnetic suction pipe; 31, frame; 32, sliding table; 33, hydraulic cylinder; 34, pressure rod; 35, guiding seat; 36, triangular pressure plate; 37, rubber pad; 38, cross-shaped pressure plate; 39, telescopic spring rod. Detailed implementation mode

[0045] The present invention will be further described in detail below in conjunction with the accompanying drawings and the detailed implementation mode. The embodiments of the present invention are given for the purpose of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

[0046] The first embodiment is as Figures 1 to 13 shown. The present invention provides a technical solution: an injector gasket pre-pressing and sorting device, including a bottom plate 1 and a hydraulic push rod 5. The injector gasket pre-pressing and sorting device further includes:

[0047] A workbench 2, which is fixedly installed in the middle of the top end of the bottom plate 1, and the hydraulic push rod 5 is fixedly installed on the right side of the top of the workbench 2;

[0048] A pre-pressing mechanism 3, which is bolted to the bottom plate 1 and is installed behind the workbench 2. The pre-pressing mechanism 3 is used for pre-pressing the gasket;

[0049] A sorting mechanism 4, which is installed on the bottom plate 1 and is installed on the left side of the workbench 2. The sorting mechanism 4 is used for sorting the gasket;

[0050] Among them, the workbench 2 includes a platform 21 fixedly installed on the bottom plate 1. An expansion and locking mechanism 23 is installed on the platform 21. The expansion and locking mechanism 23 is used for bouncing up and down in the vertical axial direction. A three-leg frame 24 is installed on the top of the expansion and locking mechanism 23. The three-leg frame 24 is inserted into the top of the platform 21. The three-leg frame 24 shields directly above the expansion and locking mechanism 23. The three-leg frame 24 is used for clamping and positioning the gasket.

[0051] The preloading mechanism 3 includes a triangular pressure plate 36. The triangular pressure plate 36 is installed directly above the three-leg frame 24. The triangular pressure plate 36 is used for aligning and stabilizing the three-leg frame 24.

[0052] The workbench 2 further includes a boss 22. The boss 22 is fixedly installed at the bottom of the platform 21. Clamping heads 25 are fixedly installed at the three corners of the top of the three-leg frame 24. A plug pin is installed in the middle of the clamping head 25. The plug pin is inserted and aligned with the triangular pressure plate 36. A preloading ring 26 is assembled on the three-leg frame 24. The preloading ring 26 is clamped on the three-leg frame 24 through the clamping head 25.

[0053] The positioning member 28 includes an arc-shaped clamping jaw 281 installed inside the ring shell 27. A rubber clamp 282 is fixedly connected to the free end of the arc-shaped clamping jaw 281. The non-free end of the arc-shaped clamping jaw 281 is sleeved on the output end of the DD motor 29. A torsion spring 285 is installed at the part where the arc-shaped clamping jaw 281 is sleeved with the output end of the DD motor 29. The torsion spring 285 is used to provide a counterclockwise torsional resistance to the arc-shaped clamping jaw 281.

[0054] A first folding baffle 283 is fixedly connected between the middle of the arc-shaped clamping jaw 281 and the ring shell 27. A second folding baffle 284 is fixedly connected between the rubber clamp 282 and the ring shell 27. Both the first folding baffle 283 and the second folding baffle 284 are made of elastic and thin fabric. The first folding baffle 283 and the second folding baffle 284 are jointly used to shield foreign objects from entering between the arc-shaped clamping jaw 281 and the ring shell 27.

[0055] The expansion and locking mechanism 23 includes a guide rail locking member 231. The guide rail locking member 231 is inserted into the top of the workbench 2. A ramp pressure rod 232 is installed inside the guide rail locking member 231. The bottom of the ramp pressure rod 232 abuts against the boss 22. The ramp pressure rod 232 is elastically telescoped and locked with the guide rail locking member 231 through the boss 22. The middle of the top of the ramp pressure rod 232 is fixedly connected with a top head 234. A socket 233 is inserted on the top of the top head 234. The top of the socket 233 is inserted into the middle of the preloading ring 26. A notch is opened on the top side of the ramp pressure rod 232. The top of the ramp pressure rod 232 is inclined towards the notch. A stop block 235 is fitted and installed in the notch. Among them, in the initial state of the ramp pressure rod 232, it is retracted and locked inside the guide rail locking member 231. The top of the top head 234 does not directly contact the bottom of the socket 233, and there is sufficient space for debris to fall between them.

[0056] The preloading mechanism 3 further includes:

[0057] A protective member, which is assembled at the bottom end of the pressure rod 34. The protective member has a rubber pad 37. The rubber pad 37 is installed in the middle of the bottom end of the pressure rod 34. A cross-shaped pressing plate 38 is fitted and installed at the bottom end of the rubber pad 37. A telescopic elastic rod 39 is connected through the top of the cross-shaped pressing plate 38 to penetrate the rubber pad 37. Small springs are fixedly installed around the telescopic elastic rod 39. The tops of the small springs are fixedly connected to the pressure rod 34. The rubber pad 37 is elastically inserted into the pressure rod 34 through the telescopic elastic rod 39 and the small springs. Under the action of its own weight, the cross-shaped pressing plate 38 protrudes from the bottom end of the pressure rod 34, and can contact the gasket one step earlier than the pressure rod 34 to perform flexible pre-positioning on the gasket.

[0058] The sorting mechanism 4 includes an inclined guide plate 41 fixedly installed on the left side of the top of the workbench 2. The inclined guide plate 41 is inclined downward to the left as a whole. A threaded connection of an inclined conduit 42 is provided in the middle of the bottom end of the inclined guide plate 41. Three receiving cylinders 43 are arranged side by side and clamped on the left side of the top of the bottom plate 1. The number of the receiving cylinders 43 is three. A waste cylinder 44 is installed in front of the receiving cylinder 43. The waste cylinder 44 is threadedly installed on the bottom plate 1. Among them, a leakage port is opened at the bottom of the front end of the inclined conduit 42, and the leakage port is aligned directly above the waste cylinder 44 for guiding the defective gaskets into the waste cylinder 44.

[0059] A branch pipe 45 and a magnetic suction pipe 47 are installed between the receiving cylinder 43 and the inclined conduit 42. The branch pipe 45 is fixedly connected to the bottom of the inclined conduit 42, and a blanking valve 46 is installed at the connection between the branch pipe 45 and the inclined conduit 42. The number of the blanking valves 46 is three, and the valve orifice diameters of the three blanking valves 46 gradually increase from the rear to the front. The blanking valve 46 is used for sorting gaskets of different models. One end of the magnetic suction pipe 47 is fixedly connected to the receiving cylinder 43, and the other end of the magnetic suction pipe 47 is magnetically installed on the branch pipe 45.

[0060] During use, three DD motors 29 are simultaneously activated to drive the arc-shaped clamping jaws 281 to rotate clockwise around the output end of the DD motor 29. While folding and storing the first folding baffle 283 together, the second folding baffle 284 connected to the rubber clamp 282 is stretched and unfolded. At this time, the rubber clamps 282 in three directions simultaneously perform a centripetal twisting motion to gradually gather and adjust the gasket to the central position of the ring shell 27, that is, the gasket is positioned directly above the socket 233. At this time, the center of the gasket is on the central axis of the pressure rod 34 and directly below the pressure rod 34;

[0061] At this time, the ramp pressure rod 232 is locked in the guide rail locking member 231 in a downward contracted state by the guide rail locking member 231. At this time, the top of the socket 233 is flush with the top of the preloading ring 26. The top of the socket 233 is in close contact with the bottom of the gasket. The hydraulic push rod 5 is in a contracted state, and the telescopic end of the hydraulic push rod 5 is flush with the top of the ring shell 27;

[0062] Then, first activate the sliding table 32 to drive the guide seat 35 to descend in the direction of the vertical axis, so that the bottom of the triangular pressing plate 36 contacts the top of the chuck 25, and a pin is inserted into the bottom of the triangular pressing plate 36 to achieve the precise alignment and fixation of the triangular pressing plate 36 and the preloading ring 26;

[0063] Then activate the hydraulic cylinder 33 to drive the pressure rod 34 to extend downward, so that the pressure rod 34 passes through the guide seat 35 and the triangular pressing plate 36 in sequence, comes to directly above the preloading ring 26, and through the dual alignment guidance of the guide seat 35 and the preloading ring 26, the pressure rod 34 presses on the gasket. After the pressure rod 34 presses the gasket downward, it quickly rises back between the guide seat 35 and the triangular pressing plate 36;

[0064] During the period when the pressure rod 34 presses on the gasket, under the action of gravity, the cross-shaped pressing plate 38 contacts the top of the gasket one step ahead of the pressure rod 34. By utilizing the buffering effect of the cross-shaped pressing plate 38 combined with the small spring and the rubber pad 37, the elastic contact with the gasket is realized in advance, and the position of the gasket is aligned. Subsequently, under the downward pressing action of the pressure rod 34, the small spring and the rubber pad 37 are squeezed, and the cross-shaped pressing plate 38 is retracted into the pressure rod 34 under the vertical retraction guidance of the telescopic elastic rod 39, so that the bottom of the cross-shaped pressing plate 38 is flush with the bottom of the pressure rod 34 again. Furthermore, the pre-pressing operation before processing the gasket is realized through the pressure rod 34.

[0065] When the pressure rod 34 presses on the gasket, while the pressure rod 34 squeezes the gasket downward, the socket 233 is pressed downward together with the preloading ring 26. The preloading ring 26 is pressed back into the top of the three-leg frame 24 through the elastic shock absorption action of the straight rod 210 and the spring. At the same time, the socket 233 is pressed onto the top head 234, and drives the ramp pressure rod 232 to descend in the guide rail locking member 231. Under the torsional locking guidance of the guide rail locking member 231, for the overall operation principle of the telescopic locking mechanism 23 here, refer to the working principle of the automatic telescopic locking mechanism of a ballpoint pen, so that the ramp pressure rod 232 jacks up from the guide rail locking member 231, thereby jacking up the socket 233 inserted on the top of the top head 234 from the preloading ring 26, making the bottom of the gasket flush with the top of the ring shell 27 at this time and exposing it from the top of the ring shell 27;

[0066] During the period when the socket 233 is jacked up from the preloading ring 26, that is, during the period when the pressure rod 34 presses the gasket downward and then rises, three DD motors 29 can be activated simultaneously to drive the arc-shaped jaws 281 to perform a counterclockwise return rotation movement, and the arc-shaped jaws 281 are fitted and stored inside the ring shell 27, waiting for the clamping and positioning of the next gasket;

[0067] Subsequently, the hydraulic push rod 5 can be activated to push the gasket into the inner side of the inclined guide plate 41 to the left, guide the gasket into the inclined conduit 42 via the inclined guide plate 41, and screen the corresponding specifications of the gasket through the blanking valves 46 with different sizes installed in the inclined conduit 42. When the gasket passes through the blanking valve 46 of a specific diameter size, it will be collected in the storage cylinder 43 under the guidance of the branch pipe 45 and the magnetic suction pipe 47. Defective products or pre-pressed defective gaskets, that is, gaskets with severely bulged and deformed sides, will be collected in the waste cylinder 44 through the leakage port. Through the above operations, the pre-pressing and sorting operations of the gaskets can be achieved.

[0068] Subsequently, the pressure rod 34 is activated again to quickly press down and then rise. Through this action, the ramp pressure rod 232 is pressed down again and locked in the guide rail locking part 231, making the top of the socket 233 flush with the top of the pre-pressing ring 26 again, facilitating the placement of the next gasket on the pre-pressing ring 26 and waiting for the pre-pressing treatment by the pressure rod 34. At this time, the sliding table 32 continues to maintain the alignment state with the pre-pressing ring 26 to avoid continuous alignment and fixation of the pre-pressing ring 26. After the pre-pressing and sorting structure of the gaskets in the same batch, the pin inserted at the bottom of the triangular pressure plate 36 can be removed, and then the sliding table 32 is activated to rise, exposing the pre-pressing ring 26, and the sorting equipment is adjusted back to the initial state to wait for the pre-pressing and sorting processing of the next batch of gaskets.

[0069] Among them, when the ramp pressure rod 232 contracts and locks in the guide rail locking part 231, the top of the top head 234 does not directly contact the bottom of the socket 233, and there is sufficient space for debris to fall between them.

[0070] The convex platform 22 blocks the bottom of the ramp pressure rod 232, providing a safety limit and shielding guarantee for the contraction and locking depth of the function of the ramp pressure rod 232 in the guide rail locking part 231, preventing the ramp pressure rod 232 from being over-pressed by the pressure rod 34 and causing damage to the internal structural components of the guide rail locking part 231, and ensuring the normal operation of the telescopic locking mechanism 23.

[0071] After the pressure rod 34 presses down on the gasket, through the short-distance rising operation of the pressure rod 34 quickly rising between the guide seat 35 and the triangular pressure plate 36, the pressure rod 34 can be protected and stored, and it can prevent the pressure rod 34 from hindering the upward extension of the ramp pressure rod 232. At the same time, it also avoids scratching the top of the gasket by the pressure rod 34. Meanwhile, it is convenient for the hydraulic push rod 5 to laterally export the gasket from between the triangular pressure plate 36 and the pre-pressing ring 26 to the inclined guide plate 41. While ensuring the processing accuracy of the pressure rod 34 pressing down, the path required for the continuous pre-pressing action of the pressure rod 34 is shortened above the triangular pressure plate 36, facilitating the continuous and rapid pre-pressing processing of the gaskets, shortening the pre-pressing treatment time for each gasket, and improving the batch processing efficiency of the equipment for gaskets.

[0072] The arc-shaped clamping jaws 281 are connected to the inner side of the ring shell 27 through the first folding stop 283 and the second folding stop 284, which can effectively block the gap between the arc-shaped clamping jaws 281 and the ring shell 27, prevent debris from directly entering and affecting the fitting and storage of the arc-shaped clamping jaws 281 on the inner side of the ring shell 27, and ensure the synchronous rotation angle range of the three groups of arc-shaped clamping jaws 281 for the gasket and the central positioning function for the gasket;

[0073] Among them, the rubber clamp 282 is provided as the contact structure between the arc-shaped clamping jaws 281 and the gasket to achieve flexible positioning and clamping of the gasket surface. While avoiding scratching the gasket surface, it can also buffer, guide and disperse the impact force from the gasket during the preloading of the gasket by the pressure rod 34, and prevent the arc-shaped clamping jaws 281 from being directly impacted and losing the positioning accuracy;

[0074] Moreover, combined with the installation of the torsion spring 285 on the output end of the arc-shaped clamping jaws 281 and the DD motor 29, when the arc-shaped clamping jaws 281 are clamping the gasket and are impacted by the impact force of the pressure rod 34 on the gasket, the arc-shaped clamping jaws 281 can make a counterclockwise torsional detachment and a clockwise resilient self-protection action, so as to cut off the guidance of the impact force on the arc-shaped clamping jaws 281 in a short time, achieve self-protection of the arc-shaped clamping jaws 281, and ensure the normal use of the arc-shaped clamping jaws 281. After the anti-vibration ends, the three groups of arc-shaped clamping jaws 281 will re-achieve the central positioning and clamping state of the gasket under the action of the self-clockwise resilient return of the torsion spring 285, protecting the arc-shaped clamping jaws 281 without affecting the positioning and clamping function of the gasket;

[0075] Secondly, by using the arc-shaped clamping jaws 281 to rotate, position and clamp the gasket, it is possible to achieve statistical automatic clamping and positioning of gaskets with different diameters within the effective coverage range of the ring shell 27.

[0076] Second Embodiment, on the basis of the first embodiment, please refer to Figure 4 and Figure 6 as shown, the workbench 2 further includes:

[0077] A clamping member, which is installed in the middle of the top end of the preloading ring 26. The clamping member includes a ring shell 27 fixedly installed on the preloading ring 26. There are three positioning members 28 evenly distributed along the circumference on the inner side of the ring shell 27. A DD motor 29 is fixedly installed at the bottom end of the preloading ring 26, and the output end of the DD motor 29 penetrates the preloading ring 26 and extends out from the ring shell 27;

[0078] Among them, a straight rod 210 and a spring are fixedly connected to the bottom of the DD motor 29. The spring surrounds the straight rod 210. The preloading ring 26 is inserted into the three-leg frame 24 through the cooperation of the straight rod 210 and the spring, and the bottom of the spring is fixedly connected to the three-leg frame 24.

[0079] During use, the chuck 25 can effectively clamp and limit the preloading ring 26 on the tripod 24. While the preloading ring 26 is elastically installed on the tripod 24 via the straight rod 210 and the spring, the preloading ring 26 can perform vertical up-and-down elastic adjustment within the height restricted by the chuck 25. At the same time, the socket 233 fitted in the middle of the preloading ring 26 can also move up and down between the bottom of the preloading ring 26 and the hollow structure in the middle of the tripod 24 following the up-and-down movement of the preloading ring 26. Using this elastic structure can reduce the impact during preloading the gasket and achieve elastic buffer protection for the preloading ring 26.

[0080] Secondly, by using the approximate triangular structural contours of the tripod 24 and the preloading ring 26, the tripod 24 and the preloading ring 26 can stably share and balance the impact force from the pressure rod 34, and transfer the dispersed impact force to the bottom plate 1 through the workbench 2, thereby avoiding the shaking problem of the preloading ring 26 when preloading the gasket placed therein, and ensuring the positioning accuracy and preloading accuracy of the gasket by the preloading ring 26 during preloading.

[0081] Among them, the ring shell 27 not only provides a space for installing the positioning member 28, but also provides an annular wrapping space for positioning the gasket on the top of the preloading ring 26. It can block some foreign objects from directly contacting the gasket, and at the same time avoid the hidden danger of the gasket splashing accidentally and ejecting debris during preloading. At the same time, it also actively strengthens the overall structural strength of the preloading ring 26, helps the preloading ring 26 share the impact from the pressure rod 34, and effectively traps and intercepts the debris inside, preventing the debris from splashing and polluting the surrounding environment;

[0082] At the same time, in combination with the automatic rotational movement of the positioning member 28 inside the ring shell 27, the debris accumulated on the top of the preloading ring 26, that is, inside the ring shell 27, can be guided to the ramp pressure rod 232 for separate storage, avoiding the interference of the debris on the preloading of the gasket.

[0083] When the top of the socket 233 is flush with the top of the preloading ring 26, three DD motors 29 can be simultaneously activated to rotate clockwise to gather the debris remaining on the top of the preloading ring 26, inside the ring shell 27, towards the center of the preloading ring 26. The debris will fall through the through-hole structure in the center of the socket 233 to the top of the ramp pressure rod 232. Through the inclined curved surface structure design at the top of the ramp pressure rod 232, these debris can be temporarily stored. After a certain amount of debris is collected, by removing the stopper 235, the debris can be uniformly dumped and taken out, realizing the automatic cleaning and transfer of the debris on the top of the preloading ring 26, achieving separate storage of the debris, avoiding the interference and influence of the debris on the subsequent preloading of the gasket, and at the same time ensuring the quality of the subsequent preloading of the gasket.

[0084] Third embodiment, based on the first and second embodiments, please refer to Figure 12 andFigure 13 As shown in the figure, the preloading mechanism 3 includes a frame 31 fixedly installed on the bottom plate 1. A sliding table 32 is installed on the frame 31. A hydraulic cylinder 33 is fixedly installed at the top of the frame 31. The output end of the hydraulic cylinder 33 is fixedly connected with a pressure rod 34. The pressure rod 34 and the socket 233 are on the same axis. A guiding seat 35 is installed on the sliding table 32 by threading. The guiding seat 35 vertically rises and falls with the sliding table 32 and the frame 31. The pressure rod 34 passes through the guiding seat 35. The side of the guiding seat 35 facing away from the hydraulic cylinder 33 is threadedly installed with the top of a triangular pressing plate 36. The pressure rod 34 and the center of the triangular pressing plate 36 are aligned. The triangular pressing plate 36 is used to vertically guide the pressure rod 34. Through holes are provided at the centers of both the guiding seat 35 and the triangular pressing plate 36, and the diameters of the two through holes gradually decrease in sequence. The diameter of the smallest through hole is equal to the outer diameter of the pressure rod 34;

[0085] Using the gradually decreasing through holes as the path to guide the pressure rod 34 can provide smooth guidance on the central axis during the downward pressing process of the pressure rod 34, provide guiding specifications for the vertical axis downward stamping operation of the pressure rod 34, and at the same time be responsible for assisting in detecting and judging whether the pressure rod 34 is in a normal use state. During use, by observing whether the pressure rod 34 passes smoothly through these two through holes, it is judged whether the pressure rod 34 can still perform preloading operations with high precision; among them, when the pressure rod 34 cannot pass smoothly through the guiding path provided by the guiding seat 35 and the triangular pressing plate 36, collisions between structures or harsh noises will occur. At this time, it can be determined that the hydraulic cylinder 33 or the pressure rod 34 has failed and needs to be maintained. Otherwise, it can operate and be used normally without maintenance.

[0086] During use, through the structural design of the preloading mechanism 3, under the positioning and guiding cooperation of the sliding table 32, the guiding seat 35 and the triangular pressing plate 36, the self-fixing and alignment of the preloading ring 26 can be realized, preventing the phenomenon that the alignment accuracy of each gasket is too different during the preloading of the gasket, resulting in a large number of gaskets being unusable, and ensuring the unity and accuracy of the preloading processing accuracy of the gaskets in the same batch;

[0087] At the same time, it can also realize the continuous alignment processing of the preloading of gaskets in the same batch. It is not necessary to calibrate the central positions of the preloading ring 26 and the gasket every time, nor is it necessary to calibrate the guiding path of the pressure rod 34 for each processed gasket. Instead, it can autonomously and uniformly standardize the vertical stamping guiding path of the pressure rod 34, realize the artificial judgment of whether the pressure rod 34 is in a vertical stamping operation state. When the pressure rod 34 cannot pass smoothly through the central axis path guided by the guiding seat 35 and the triangular pressing plate 36, it can immediately be judged that the hydraulic cylinder 33 or the pressure rod 34 has failed and needs to be maintained and calibrated in time, effectively reducing the defective rate of gaskets.

[0088] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art and related fields based on the embodiments in the present invention without creative efforts shall fall within the scope of protection of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, shall be implemented by conventional means in the art.

Claims

1. An injector gasket preloading and sorting device, comprising a bottom plate (1) and a hydraulic push rod (5), characterized in that, Further included are: A workbench (2), which is fixedly installed in the middle of the top end of the bottom plate (1), and the hydraulic push rod (5) is fixedly installed on the right side of the top of the workbench (2); A pre-pressing mechanism (3), which is bolted to the bottom plate (1), and the pre-pressing mechanism (3) is installed behind the workbench (2), and the pre-pressing mechanism (3) is used for pre-pressing the gasket; A sorting mechanism (4), which is installed on the bottom plate (1), and the sorting mechanism (4) is installed on the left side of the workbench (2), and the sorting mechanism (4) is used for sorting the gaskets; Among them, the workbench (2) includes a clamping member, which is installed in the middle of the top end of the pre-pressing ring (26). The clamping member includes a ring shell (27) fixedly installed on the pre-pressing ring (26). The positioning members (28) are evenly distributed along the circumference inside the ring shell (27). The number of the positioning members (28) is three groups. The bottom end of the pre-pressing ring (26) is fixedly installed with a DD motor (29), and the output end of the DD motor (29) penetrates through the pre-pressing ring (26) and extends out from the ring shell (27); The pre-pressing mechanism (3) includes a triangular pressing plate (36), and the triangular pressing plate (36) is installed directly above the three-leg frame (24), and the triangular pressing plate (36) is used for aligning and stabilizing the three-leg frame (24).

2. The preloading and sorting equipment for an injector gasket according to claim 1, wherein: The workbench (2) further includes a platform (21) fixedly installed on the bottom plate (1). An expansion and locking mechanism (23) is installed on the platform (21), and the expansion and locking mechanism (23) is used for bouncing up and down in the vertical axial direction. The top of the expansion and locking mechanism (23) is installed with a three-leg frame (24). The three-leg frame (24) is inserted on the top of the platform (21). The three-leg frame (24) shields directly above the expansion and locking mechanism (23), and the three-leg frame (24) is used for clamping and positioning the gasket; Among them, the bottom of the DD motor (29) is fixedly connected with a straight rod (210) and a spring. The spring is wound around the straight rod (210). The pre-pressing ring (26) is inserted into the three-leg frame (24) through the cooperation of the straight rod (210) and the spring, and the bottom of the spring is fixedly connected to the three-leg frame (24).

3. The preloading and sorting device for an injector gasket according to claim 2, wherein: The workbench (2) further includes: A boss (22), which is fixedly installed at the bottom of the platform (21). Clamping heads (25) are fixedly installed at the three corners of the top of the three-leg frame (24). A plug pin is installed in the middle of the clamping head (25), and the plug pin is inserted into the triangular pressing plate (36) for alignment. A pre-pressing ring (26) is assembled on the three-leg frame (24), and the pre-pressing ring (26) is clamped on the three-leg frame (24) through the clamping head (25).

4. The preloading and sorting equipment for an injector gasket according to claim 3, characterized in that: The positioning member (28) includes an arc-shaped clamping jaw (281) installed inside the ring shell (27). A rubber clamp (282) is fixedly connected to the free end of the arc-shaped clamping jaw (281). The non-free end of the arc-shaped clamping jaw (281) is sleeved on the output end of the DD motor (29), and a torsion spring (285) is installed at the part where the arc-shaped clamping jaw (281) is sleeved on the output end of the DD motor (29).

5. An injector gasket preloading and sorting device according to claim 4, characterized in that: A first folding stop (283) is fixedly connected between the middle of the arc-shaped jaw (281) and the ring shell (27), and a second folding stop (284) is fixedly connected between the rubber clip (282) and the ring shell (27). Both the first folding stop (283) and the second folding stop (284) are made of elastic thin fabric.

6. The preloading and sorting equipment for an injector gasket according to claim 2, wherein: The telescopic locking mechanism (23) includes a guide rail locking member (231) inserted on the top of the workbench (2). A ramp pressure rod (232) is installed inside the guide rail locking member (231). The bottom of the ramp pressure rod (232) abuts against the boss (22). The ramp pressure rod (232) is elastically telescopic locked with the guide rail locking member (231) through the boss (22). A top head (234) is fixedly connected to the middle of the top end of the ramp pressure rod (232). A socket head (233) is inserted on the top of the top head (234). The socket head (233) is inserted in the middle of the preloading ring (26). A notch is formed on the top side of the ramp pressure rod (232). The top of the ramp pressure rod (232) is inclined towards the notch, and a stop block (235) is fitted and installed in the notch.

7. An injector gasket preloading and sorting device according to claim 1, characterized in that: The preloading mechanism (3) includes a frame (31) fixedly installed on the bottom plate (1). A sliding table (32) is installed on the frame (31). A hydraulic cylinder (33) is fixedly installed on the top of the frame (31). The output end of the hydraulic cylinder (33) is fixedly connected to a pressure rod (34). The pressure rod (34) and the socket head (233) are located on the same axis. A guide seat (35) is threadedly installed on the sliding table (32). The guide seat (35) vertically moves up and down with the sliding table (32) and the frame (31). The pressure rod (34) passes through the guide seat (35). The side of the guide seat (35) facing away from the hydraulic cylinder (33) is threadedly installed with the top of a triangular pressure plate (36). The pressure rod (34) and the center of the triangular pressure plate (36) are aligned. Through holes are formed in the centers of the guide seat (35) and the triangular pressure plate (36), and the diameters of the two through holes gradually decrease. The diameter of the smallest through hole is equal to the outer diameter of the pressure rod (34).

8. An injector gasket preloading and sorting device according to claim 7, characterized in that: The preloading mechanism (3) further includes: A protection member assembled at the bottom end of the pressure rod (34). The protection member has a rubber pad (37). The rubber pad (37) is installed in the middle of the bottom end of the pressure rod (34). A cross-shaped pressure plate (38) is fitted and installed at the bottom end of the rubber pad (37). A telescopic elastic rod (39) passes through the rubber pad (37) and is connected to the top of the cross-shaped pressure plate (38). Small springs are fixedly installed around the telescopic elastic rod (39). The tops of the small springs are fixedly connected to the pressure rod (34). The rubber pad (37) is elastically inserted with the pressure rod (34) through the telescopic elastic rod (39) and the small springs. The cross-shaped pressure plate (38) protrudes from the bottom end of the pressure rod (34).

9. An injector gasket preloading and sorting device according to claim 1, characterized in that: The sorting mechanism (4) includes an inclined guide plate (41) fixedly installed on the left side of the top of the workbench (2). The inclined guide plate (41) is inclined downward to the left as a whole. A threaded connection is provided in the middle of the bottom end of the inclined guide plate (41) with an inclined conduit (42). On the left side of the top of the bottom plate (1), three receiving cylinders (43) are arranged side by side. In front of the receiving cylinders (43), a waste cylinder (44) is installed. The waste cylinder (44) is threadedly installed on the bottom plate (1). Among them, a material leakage port is opened at the bottom of the front end of the inclined conduit (42), and the material leakage port is aligned directly above the waste cylinder (44).

10. An injector gasket preloading and sorting device according to claim 9, characterized in that: A branch pipe (45) and a magnetic suction pipe (47) are installed between the receiving cylinder (43) and the inclined conduit (42). The branch pipe (45) is fixedly connected to the bottom of the inclined conduit (42), and a material discharging valve (46) is installed at the connection between the branch pipe (45) and the inclined conduit (42). The number of the material discharging valves (46) is three, and the valve orifice diameters of the three material discharging valves (46) gradually increase from the rear to the front. One end of the magnetic suction pipe (47) is fixedly connected to the receiving cylinder (43), and the other end of the magnetic suction pipe (47) is magnetically installed on the branch pipe (45).

Images