Rotary plate fuel injection pump automatic clamping and assembly equipment

Abstract

The present invention relates to automatic clamping and assembling equipment for a turntable type fuel injection pump, comprising a frame, a cam divider is arranged in the middle of the frame, a cam disc is fixedly connected to the housing of the cam divider, a turntable is fixedly connected to the rotating platform of the cam divider, a plurality of positioning seats are slidably connected to the turntable, a first spring is arranged between each positioning seat and the turntable, an inner support chuck is slidably connected to both sides of the positioning seat, an elastic limiting component is arranged beside each positioning seat on the turntable, a visual inspection mechanism, a pin feeder, a support body feeder, a pin pre-insertion mechanism, a support body feeding mechanism and a pin pressing mechanism are arranged in sequence on the frame of the limiting claw beside the turntable, and a discharge mechanism is fixedly connected to the frame beside the pin pressing mechanism. The beneficial effects of the present invention are: it can adapt to the automatic feeding flow, assembly and discharge processing of the fuel injection pump support body and pins, and improve the assembly efficiency and processing quality of the fuel injection pump.

Description

Technical Field

[0001] The invention relates to the field of fuel injection pump assembly equipment, and in particular to automatic clamping and assembly equipment for a rotary plate type fuel injection pump. Background Art

[0002] The fuel injection pump is mainly composed of pump body, support body, pin, spring, piston pair and other parts. The fuel injection pump is an important part of the diesel engine fuel system, and its working condition directly affects the power, economy and reliability of the diesel engine.

[0003] During the processing of the fuel injection pump, it is necessary to install a support body and a pin on the pump body in sequence. The support body can be regarded as a cylinder with openings on the side walls and holes. During processing, the support body is installed and then the pins are inserted to assemble the support body and the pump body together.

[0004] The existing publication number is CN203343938U, which is an assembly fixture for the lower seat of the spring of an injection pump. The feature is that the fixture includes a base, the base is connected to a column via a fastener, the column is connected to a pressure plate and a clamping nut in sequence via a bearing, an elastic component is arranged between the lower end surface of the pressure plate and the upper plane of the base, and a positioning pin is also arranged on the base.

[0005] The existing fuel injection pump assembly fixture can only realize the assembly of the support body, but cannot realize the automatic loading, assembly and unloading of the support body and pins of the fuel injection pump. The production efficiency and production quality are low. Therefore, a turntable fuel injection pump automatic clamping and assembly equipment is needed. Summary of the invention

[0006] The purpose of the present invention is to provide a turntable type fuel injection pump automatic clamping and assembly equipment, which can adapt to the automatic loading, assembly and unloading processing of the fuel injection pump support body and pins, and improve the assembly efficiency and processing quality of the fuel injection pump.

[0007] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automated clamping and assembly equipment for a turntable type fuel injection pump, comprising a frame, a cam divider is arranged in the middle of the frame, a cam disk is fixedly connected to the shell of the cam divider, a turntable is fixedly connected to the rotating table of the cam divider, a plurality of positioning seats are slidably connected to the turntable, and an elastic limiting assembly is arranged on the turntable beside each positioning seat, the elastic limiting assembly comprises a hinge seat fixed on the turntable, limiting claws hinged at both ends of the hinge seat, a top block slidably connected to the middle part of the hinge seat, and a second spring sleeved on the top block, one end of the top block is hinged to the two limiting claws respectively, a strip groove is arranged at the hinge between the limiting claw and the hinge seat, the other end of the top block is tangent to the cam disk, and a visual detection mechanism, a pin feeder, and a support body feeder are sequentially arranged on the frame beside the turntable. , a pin pre-insertion mechanism, a support body feeding mechanism and a pin pressing mechanism, a clamping mechanism is provided at the visual inspection mechanism and the pin pre-insertion mechanism on the frame, the pin pre-insertion mechanism includes a docking cylinder, an implantation cylinder, a docking slide fixedly connected to the docking cylinder moving platform, an implantation slide fixedly connected to the implantation cylinder moving platform, a misaligned cylinder fixed on the docking slide, a misaligned slider fixed on the misaligned cylinder moving platform, a material nozzle fixed on the misaligned slider, and a push rod fixedly connected to the implantation slide, a material pipe is fixedly connected to the docking slide, the feed port of the material pipe is connected to the discharge port of the pin feeder, and the discharge port of the material pipe corresponds to the feed port of the material nozzle, a lifting cylinder is fixedly connected to the pin pre-insertion mechanism and the pin pressing mechanism on the frame, and a unloading mechanism and a laser marking mechanism are fixedly connected to the side of the pin pressing mechanism on the frame.

[0008] Furthermore, a first spring is provided between each of the positioning seats and the turntable, internal support chucks are slidably connected to both sides of the positioning seats, a positioning hole is opened on each of the positioning seats, and the two internal support chucks are respectively located on both sides of the positioning hole, and a third spring is provided between each of the internal support chucks and the positioning seat.

[0009] Furthermore, the visual inspection mechanism includes a detection camera, a translation cylinder and a fill light, the detection camera and the translation cylinder are fixedly connected to the frame, and the fill light is hinged to the moving platform of the translation cylinder.

[0010] Furthermore, a material hole is provided in the middle of the material nozzle, and a ball and a perspective hole are provided on the side wall of the material nozzle. One side of the ball is located in the material hole, and the perspective hole is connected to the material hole.

[0011] Furthermore, the support body feeding mechanism includes a three-axis moving module, a reversing motor and a clamping cylinder, the reversing motor is fixedly connected to the moving table of the three-axis moving module, and the clamping cylinder is fixedly connected to the rotating table of the reversing motor.

[0012] Further, the pin pressing mechanism includes a pressing cylinder and a pressing head. The pressing head is provided with a profiling groove and is fixedly connected to the piston rod of the pressing cylinder.

[0013] Further, the pressing mechanism includes a lower pressing cylinder and an upper pressing cylinder. A pressing fork plate is fixedly connected to the piston rod of the upper pressing cylinder, and the cross-section of the pressing fork plate is in a U shape.

[0014] The beneficial effects of the present invention are as follows: Through the coordinated use of the vision detection mechanism, the pin feeder, the support feeder, the pin pre-insertion mechanism, the support feeding mechanism, and the pin pressing mechanism, it can adapt to the automatic feeding, transfer, assembly, and unloading processes of the fuel injection pump support and pins, improving the assembly efficiency and processing quality of the fuel injection pump. Description of the Drawings

[0015] Figure 1 It is an isometric view schematic diagram of the present invention.

[0016] Figure 2 It is a schematic diagram of the turntable of the present invention.

[0017] Figure 3 It is a first perspective schematic diagram of the positioning seat of the present invention.

[0018] Figure 4 It is a second perspective schematic diagram of the positioning seat of the present invention.

[0019] Figure 5 It is a schematic diagram of the elastic limit component of the present invention.

[0020] Figure 6 It is a first perspective schematic diagram of the pressing mechanism of the present invention.

[0021] Figure 7 It is a second perspective schematic diagram of the pressing mechanism of the present invention.

[0022] Figure 8 It is a schematic diagram of the pin pressing mechanism of the present invention.

[0023] Fig. 9 It is a schematic diagram of the pin pre-insertion mechanism of the present invention.

[0024] In the figure: 1, frame; 101, laser marking mechanism; 201, cam plate; 202, turntable; 3, positioning seat; 301, first spring; 302, inner support chuck; 303, third spring; 401, hinge seat; 402, limit claw; 403, top block; 404, second spring; 5, support body feeder; 6, pin pre-insertion mechanism; 601, docking cylinder; 602, implantation cylinder; 603, docking slide; 604, implantation slide Table; 605, offset cylinder; 606, offset slider; 607, nozzle; 608, push rod; 7, support body feeding mechanism; 8, pin pressing mechanism; 9, clamping mechanism; 901, lower clamping cylinder; 902, upper clamping cylinder; 903, clamping fork plate; 10, visual inspection mechanism; 11, pin feeder; 12, lifting cylinder; 13, unloading mechanism; 14, pump body; 15, support body; 16, pin; 17, positioning hole. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] refer to Figure 1-Figure 9The rotary disk fuel injection pump automatic clamping and assembly equipment shown in the figure includes a frame 1, a cam divider is arranged in the middle of the frame 1, the cam divider can be driven by a servo motor, a cam disk 201 is fixedly connected to the shell of the cam divider, and a rotary disk 202 is fixedly connected to the rotating table of the cam divider. During the assembly process, the rotary disk 202 is driven by the cam divider and the servo motor to rotate, and the cam disk 201 is in a stationary state. The cam divider is used to drive the rotary disk 202 to circulate in various stations. A plurality of positioning seats 3 are slidably connected to the rotary disk 202, and a first spring 301 is arranged between each positioning seat 3 and the rotary disk 202. A buffer is arranged to prevent the loading and unloading of materials from causing damage to the product. Both sides of the positioning seat 3 are slidably connected with an inner support clamp 302. Each positioning seat 3 is provided with an elastic limiting component on the side, which can limit the protruding part on the matching pump body 14 to prevent the pump body 14 from deflecting. The elastic limiting component includes a hinge seat 401, limiting claws 402 hinged at both ends of the hinge seat 401, a top block 403 slidably connected to the middle part of the hinge seat 401, and a second spring 404 sleeved on the top block 403. One end of the top block 403 is hinged to the two limiting claws 402 respectively, and a strip groove is provided at the hinge of the limiting claw 402 and the hinge seat 401. The opened strip groove can ensure that the limiting claw 402 can be smoothly turned over during the folding and unfolding actions. The other end of the top block 403 is tangent to the cam disk 201. The second spring 404 is used to ensure that the top block 403 is always tangent to the cam disk 201. Tangently, the frame 1 is provided with a visual inspection mechanism 10, a pin feeder 11, a support body feeder 5, a pin pre-insertion mechanism 6, a support body feeding mechanism 7 and a pin pressing mechanism 8 in sequence on the side of the turntable 202. The visual inspection mechanism 10 is used to detect whether the pump body 14 has surface defects. The frame 1 is provided with a clamping mechanism 9 at the visual inspection mechanism 10 and the pin pre-insertion mechanism 6. The clamping mechanism 9 can clamp the pump body 14 from both the upper and lower directions. The clamping mechanism 9 includes a lower clamping cylinder 901 and an upper clamping cylinder 902. A clamping fork plate 903 is fixedly connected to the piston rod of the upper clamping cylinder 902. The pin feeder 11 is used to feed the pin 16. The pin pre-insertion mechanism 6 includes a docking cylinder 601 and an implantation cylinder 602. , a docking slide 603 fixedly connected to the moving platform of the docking cylinder 601, an implanting slide 604 fixedly connected to the moving platform of the implanting cylinder 602, a dislocation cylinder 605 fixed on the docking slide 603, a dislocation slider 606 fixed on the moving platform of the dislocation cylinder 605, a nozzle 607 fixed on the dislocation slider 606, and a push rod 608 fixedly connected to the implanting slide 604. A material pipe is fixedly connected to the docking slide 603. The docking cylinder 601 and the implanting cylinder 602 are both fixedly connected to the frame 1. The feed port of the material pipe is connected to the discharge port of the pin feeder 11. The discharge port of the material pipe corresponds to the feed port of the nozzle 607. The frame 1 is fixedly connected with a lifting cylinder 12 at the pin pre-insertion mechanism 6 and the pin pressing mechanism 8.A discharging mechanism 13 and a laser marking mechanism 101 are fixedly connected to the frame 1 beside the pin pressing mechanism 8.

[0027] The positioning seats 3 are each provided with a positioning hole 17 for positioning and placing the pump body 14. Two inner support chucks 302 are respectively located on both sides of the positioning hole. A third spring 303 is provided between each inner support chuck 302 and the positioning seat 3.

[0028] The vision inspection mechanism 10 includes an inspection camera, a translation cylinder and a fill light. The inspection camera and the translation cylinder are both fixedly connected to the frame 1. The fill light is hinged to the moving platform of the translation cylinder, and the angle of the fill light is adjustable. The angle of the fill light is adjusted according to the production environment to facilitate inspection.

[0029] A material hole is provided in the middle of the nozzle 607. The side wall of the nozzle 607 is provided with balls and perspective holes. The balls can block the pins during pin feeding. One side of the balls is located in the material hole, and the perspective holes communicate with the material hole. The perspective holes are used to observe whether there are pin materials in the material channel of the nozzle 607 and whether material jams occur.

[0030] The support body feeding mechanism 7 includes a three-axis moving module, a reversing motor and a clamping jaw cylinder. The reversing motor is fixedly connected to the moving platform of the three-axis moving module. The reversing motor can rotate and reverse after the clamping jaw cylinder clamps the support body. The clamping jaw cylinder is fixedly connected to the rotating platform of the reversing motor.

[0031] The pin pressing mechanism 8 includes a pressing cylinder and a pressing head. The pressing head is provided with a profiling groove, and the pressing head is fixedly connected to the piston rod of the pressing cylinder.

[0032] The cross-section of the pressing fork plate 903 is in a U shape, and the pressing fork plate 903 can make way for the placement of the clamping jaw cylinder.

[0033] The working principle of the present invention is as follows: First, at the feeding station, the pump body 14 is placed on the positioning seat 3 along the positioning hole and the inner support chuck 302. At this time, the elastic limit assembly is in the unfolded state (unfolded state: the top block 403 is pushed by the cam disk 201, and the end of the top block 403 connected to the limit claw 402 is on the side close to the pump body 14. Under the action of the top block 403, the two limit claws 402 are in the unfolded state of moving away from each other on the hinge seat 401. The limit claws 402 switch between the unfolded state and the folded state through flipping).

[0034] Refer to Figure 1, the turntable 202 rotates clockwise, and then the turntable 202 rotates to the detection station, the piston rods of the upper clamping cylinder 902 and the lower clamping cylinder 901 extend, and the clamping fork plate 903 slides downward. When the clamping starts, the lower clamping cylinder 901 lifts the inner support clamp 302. When the pump body 14 contacts the clamping fork plate 903, the lower clamping cylinder 901 continues to lift the movable rod of the inner support clamp 302 to tighten the through hole of the pump body 14, ensuring that when each pump body 14 flows to the detection station, the height of the pump body 14 is consistent, and the pump body 14 will not tilt, reducing the influence of height and tilt on the detection result. At this time, the elastic limit assembly The limiting claw 402 is in a retracted state (retracted state: the top block 403 is on the side of the small diameter of the cam disc 201, and under the action of the second spring 404, the end of the top block 403 connected to the limiting claw 402 is on the side close to the hinge seat 401, and under the action of the top block 403, the two limiting claws 402 are in a retracted state close to each other on the hinge seat 401, and the limiting claw 402 switches between the expanded state and the retracted state by flipping), and then the detection camera is used to detect whether the pump body 14 is placed in the correct direction and whether there are defects on the side surface of the pump body 14 (whether the hole for installing the pin 16 is facing the detection camera);

[0035] After the inspection is completed, the support body 15 and the pin 16 are installed. The turntable 202 rotates to transfer the inspected pump body 14 to the installation station. At the installation station, the limit claw 402 of the elastic limit assembly is in a retracted state, and the clamping mechanism 9 clamps the pump body 14 (the piston rods of the upper clamping cylinder 902 and the lower clamping cylinder 901 extend, and the clamping fork plate 903 slides downward. When the clamping starts, the lower clamping cylinder 901 lifts the inner support chuck 302. When the pump body 14 is in contact with the clamping mechanism, the inner support chuck 302 is lifted ... After the fork plate 903 contacts, the lower clamping cylinder 901 continues to lift the movable rod of the inner support clamp 302 to tighten the through hole of the pump body 14), the support body feeder 5 feeds the support body 15 at a specified angle, and then the support body feeding mechanism 7 clamps the support body 15 from the support body feeder 5, rotates 90°, changes direction, and transfers it to the top of the pump body 14, and then vertically presses down on the pump body 14 to complete the insertion of the support body 15, and then the clamping claw cylinder of the support body feeding mechanism 7 is reset. The piston rod of the offset cylinder 605 extends, and the offset slider 606 slides down (the pin feeder 11 feeds the pin into the nozzle 607 through the air pipe at this time). After the nozzle 607 moves down, the feed port of the nozzle 607 corresponds to the push rod 608, the piston rod of the lifting cylinder 12 extends, and the slide of the lifting cylinder 12 rises and is opposite to the push rod 608. The slide of the lifting cylinder 12 can block and support the other side of the installation pin 16 of the pump body 14 (the positioning seat 3 is provided with a corresponding The clearance groove can be used for the slide of the jacking cylinder 12 to perform lifting and lowering actions), the piston rod of the docking cylinder 601 is retracted, and the docking slide 603 slides toward the support body 15 and docks with the hole position on the support body 15. Under the blocking support of the slide of the jacking cylinder 12 on the pump body 14, the implantation cylinder 602 drives the push rod 608 to pre-insert the pin 16 in the nozzle 607 into the corresponding hole position of the support body 15 and the pump body 14. After the pre-assembly is completed, the clamping mechanism 9 and the pin pre-insertion mechanism 6 are reset;

[0036] After that, the turntable 202 continues to rotate, and the workpiece flows to the pin pressing mechanism 8, where the limit claw 402 of the elastic limit assembly is in the expanded state, the piston rod of the jacking cylinder 12 is extended, and the slide of the jacking cylinder 12 rises to block and support the other side of the installation pin 16 of the pump body 14, then the piston rod of the pressing cylinder is extended, and the pressure head slides to the side of the pin 16 until the pin is completely pressed onto the pump body 14 and the support body 15, and finally the pump body 14 assembled with the support body 15 and the pin 16 is grabbed by the unloading mechanism 13 and transported to the top of the laser marking mechanism 101 for laser marking and then unloading to complete the entire processing.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The above embodiments are used to further illustrate the present invention, but the present invention is not limited to these specific embodiments. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be understood to be within the protection scope of the present invention.

Claims

1. An automatic clamping and assembly equipment for a rotary disc fuel injection pump, characterized in that: The invention comprises a frame (1), wherein a cam divider is arranged in the middle of the frame (1), a cam disc (201) is fixedly connected to the housing of the cam divider, a turntable (202) is fixedly connected to the turntable (202), a plurality of positioning seats (3) are slidably connected to the turntable (202), and an elastic limiting component is arranged on the turntable (202) beside each positioning seat (3), and a visual inspection mechanism (10), a pin feeder (11), a support body feeder (5), a pin pre-insertion mechanism (6), a support body feeding mechanism (7) and a pin pressing mechanism (8) are arranged in sequence on the frame (1) beside the turntable (202), and a pressing mechanism (9) is arranged on the frame (1) at the visual inspection mechanism (10) and the pin pre-insertion mechanism (6), and the pin pre-insertion mechanism (6) comprises a docking cylinder (601), an implantation cylinder (602), and a support body feeding mechanism (7) fixedly connected to the docking cylinder (601). A docking slide (603) on a movable platform of a cylinder (601), an implantation slide (604) fixedly connected to a movable platform of an implantation cylinder (602), an offset cylinder (605) fixed to the docking slide (603), an offset slider (606) fixed to a movable platform of the offset cylinder (605), a nozzle (607) fixed to the offset slider (606), and a push rod (608) fixedly connected to the implantation slide (604), wherein the docking A material pipe is fixedly connected to the slide (603), the feed port of the material pipe is connected to the discharge port of the pin feeder (11), the discharge port of the material pipe corresponds to the feed port of the nozzle (607), a lifting cylinder (12) is fixedly connected to the pin pre-insertion mechanism (6) and the pin pressing mechanism (8) on the frame (1), and a discharge mechanism (13) and a laser marking mechanism (101) are fixedly connected to the side of the pin pressing mechanism (8) on the frame (1).

2. The automatic clamping and assembling equipment for the rotary disc fuel injection pump according to claim 1 is characterized in that: A first spring (301) is provided between each of the positioning seats (3) and the rotating disk (202); both sides of the positioning seats (3) are slidably connected with internal support chucks (302); each of the positioning seats (3) is provided with a positioning hole (17); the two internal support chucks (302) are respectively located on both sides of the positioning hole (17); and a third spring (303) is provided between each of the internal support chucks (302) and the positioning seat (3).

3. The automatic clamping and assembling equipment for a rotary disc fuel injection pump according to claim 1 is characterized in that: The visual inspection mechanism (10) comprises an inspection camera, a translation cylinder and a fill light, wherein the inspection camera and the translation cylinder are both fixedly connected to the frame (1), and the fill light is hinged to the moving platform of the translation cylinder.

4. The automatic clamping and assembling equipment for a rotary disc fuel injection pump according to claim 1 is characterized in that: A material hole is provided in the middle of the material nozzle (607), and a ball and a perspective hole are provided on the side wall of the material nozzle (607), one side of the ball is located in the material hole, and the perspective hole is connected to the material hole.

5. The automatic clamping and assembling equipment for a rotary disc fuel injection pump according to claim 1 is characterized in that: The support body feeding mechanism (7) comprises a three-axis moving module, a reversing motor and a clamping claw cylinder, wherein the reversing motor is fixedly connected to the moving platform of the three-axis moving module, and the clamping claw cylinder is fixedly connected to the rotating platform of the reversing motor.

6. The automatic clamping and assembling equipment for a rotary disc fuel injection pump according to claim 1 is characterized in that: The pin pressing mechanism (8) includes a pressing cylinder and a pressing head, wherein the pressing head is provided with a profiling groove, and the pressing head is fixedly connected to the piston rod of the pressing cylinder.

7. The automatic clamping and assembling equipment for a rotary disc fuel injection pump according to claim 1 is characterized in that: The pressing mechanism (9) includes a lower pressing cylinder (901) and an upper pressing cylinder (902). A pressing fork plate (903) is fixedly connected to the piston rod of the upper pressing cylinder (902), and the cross section of the pressing fork plate (903) is in a U shape.

8. The automatic clamping and assembling equipment for a rotary disc fuel injection pump according to claim 1 is characterized in that: The elastic limiting assembly includes a hinge seat (401) fixed on the turntable (202), limiting claws (402) hinged at both ends of the hinge seat (401), a top block (403) slidably connected to the middle of the hinge seat (401), and a second spring (404) sleeved on the top block (403). One end of the top block (403) is respectively hinged to the two limiting claws (402). A strip-shaped groove is provided at the hinge joint of the limiting claw (402) and the hinge seat (401), and the other end of the top block (403) is tangent to the cam disc (201).

Images