Subway flood prevention pump and automatic assembly apparatus therefor
The clamping, centering, and indexing feeding mechanism of the automated assembly equipment has solved the problem of manual assistance in the assembly process of flood control pumps, and realized the automated continuous assembly and efficient assembly of flood control pumps.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- ZHEJIANG CHUANGMEI ELECTROMOTOR
- Filing Date
- 2025-03-07
- Publication Date
- 2026-07-30
AI Technical Summary
In the existing technology, the assembly process of flood control pumps requires manual assistance to place the unassembled pump cover and water seal, which makes continuous assembly impossible.
The automated assembly equipment includes a clamping and centering mechanism and a rotary feeding mechanism. The rotating turntable and circular plate drive the feeding assembly to push the variable-capacity arc plate, drive plate and end cap to the picking station in sequence, and the clamp and negative pressure suction cup are used to realize automatic clamping and assembly.
It has enabled automated continuous assembly of flood control pumps, which has improved assembly efficiency, facilitated operation and maintenance and single or multiple pumps used in combination, and reduced manual intervention.
Smart Images
Figure CN2025081209_30072026_PF_FP_ABST
Abstract
Description
A subway flood control pump and its automatic assembly equipment Technical Field
[0001] This invention relates to the field of flood control pump assembly technology, specifically a subway flood control pump and its automatic assembly equipment. Background Technology
[0002] Flood control pumps are pumps specifically designed for flood control and drainage. They are mainly used to cope with floods and rainstorms, effectively removing accumulated water under extreme weather conditions, ensuring the safety of urban infrastructure and people's lives, and are important equipment for preventing floods.
[0003] The prior art discloses Chinese Patent No. CN109702463B: a pump cover and water seal assembly equipment and assembly method, which discloses a pump cover positioning device and a water seal positioning device. The pump cover pressure plate is driven by a cylinder, and the pump cover pressure plate drives the pump cover positioning device to rise and press down to assemble it when it falls, so that the pump cover positioning device and the water seal positioning device can assemble the pump cover and the water seal. Technical issues
[0004] However, the aforementioned existing technology still has certain drawbacks. During use, after an assembly cycle is completed, manual assistance is required to place the unassembled pump cover and water seal in the designated position for the next cycle, thus preventing continuous assembly. Technical solutions
[0005] The purpose of this invention is to provide a subway flood control pump and its automatic assembly equipment to solve the problems mentioned in the background art.
[0006] The objective of this invention can be achieved through the following technical solutions:
[0007] An automatic assembly equipment for a subway flood control pump is used to assemble the subway flood control pump. The subway flood control pump includes a pump body, which includes a pump casing. A drive shaft is rotatably mounted on one end of the pump casing. A fixing frame is fixedly provided on the inner side of the pump casing. A variable-capacity arc plate is sleeved on the outer side of the fixing frame. A drive disc is provided inside the pump casing and sleeved on the outer side of the corresponding end of the drive shaft. An end cover is fixedly installed on the other end of the pump casing.
[0008] The automatic assembly equipment includes a base, a support fixed at one top end of the base, a support plate on the top of the support, and support rings for supporting the pump casing fixed at both ends of the top of the support plate. A clamping and centering mechanism for automatically clamping and centering the pump casing is provided between the support and the support plate.
[0009] The base is equipped with a rotary feeding mechanism at one end of the pallet for rotating and alternating feeding of the variable-capacity arc plate, drive disk, and end cap.
[0010] In a preferred embodiment, the clamping and centering mechanism includes a motor fixedly installed on the top of the base corresponding to the support and a boundary strip fixed in the middle of the bottom of the support plate. The output shaft of the motor movably passes through one end of the support and is fixedly connected to the boundary strip. Clamping components are provided on both sides of the boundary strip.
[0011] The clamping assembly includes a gear 1 rotatably mounted on the bottom of the base via a shaft. Two sets of U-shaped frames are fixedly provided on the bottom of the base and are arranged symmetrically about the gear 1. L-shaped rack 1 and L-shaped rack 2, which mesh with the gear 1, are respectively movably inserted inside the two sets of U-shaped frames. A V-shaped block is fixedly provided at the end of L-shaped rack 1 away from the boundary bar. A spring 1 is fixedly connected between the end of L-shaped rack 2 near the boundary bar and the boundary bar.
[0012] The clamping assembly also includes two through slots on the base. A clamping seat is attached to the top of the base at the position corresponding to the two through slots. A connecting block that is slidably connected to the corresponding through slot is fixed between L-shaped rack one and L-shaped rack two and the corresponding clamping seat.
[0013] In a preferred embodiment, the indexing and feeding mechanism includes a second motor fixedly installed on the top of the base. The output shaft of the first motor is fixedly connected to a vertical shaft. A circular plate and a turntable are fixedly sleeved on the outside of the vertical shaft from top to bottom. Three straight plates are fixedly arranged around the vertical shaft on the outside of the circular plate. A variable-capacity arc plate feeding assembly, a drive disk feeding assembly, and an end cap feeding assembly are respectively installed on the ends of the three straight plates away from the circular plate. The turntable and the V-block are arranged in a horizontal and coplanar manner.
[0014] In a preferred embodiment, the variable-capacity arc plate loading assembly includes a cylinder one fixedly installed on the top of the straight plate. The telescopic end of the cylinder one is fixedly connected to a limiting plate at one end that passes through the straight plate. A limiting ring is sleeved on the outside of the limiting plate. Three cylinders two are fixedly installed on the outside of the limiting ring in a ring-shaped even distribution. Each cylinder two has a tightening plate fixedly connected to the end of its telescopic end.
[0015] In a preferred embodiment, a power component is provided between the limiting disk and the limiting ring. The power component includes a motor three fixedly installed on the top of the limiting disk and a gear ring fixedly installed on the top of the limiting ring. The output shaft end of the motor three is fixedly connected to a gear two that meshes with the gear ring.
[0016] In a preferred embodiment, the drive plate feeding assembly includes a cylinder three fixedly installed on the top of the straight plate, and a negative pressure suction cup one is fixedly connected to one end of the cylinder three that passes through the straight plate.
[0017] In a preferred embodiment, the end cap feeding assembly includes a cylinder four fixedly installed on the top of a straight plate. A sleeve is fixedly connected to one end of the cylinder four that passes through the straight plate. A T-shaped cylinder is movably inserted inside the sleeve. A negative pressure suction cup two is fixedly installed at the bottom of the T-shaped cylinder. A spring three is sleeved on the outside of the T-shaped cylinder to fix the sleeve and the T-shaped cylinder.
[0018] The top of the T-shaped cylinder has a square groove, and a square column is fixed inside the sleeve and is movably inserted into the square groove.
[0019] In a preferred embodiment, the end cap feeding assembly further includes an annular plate fixedly sleeved at the bottom edge of the outer side of the sleeve. Multiple electric screwdrivers evenly distributed in a ring are fixedly mounted on the annular plate, and a bolt sleeve is fixedly connected to the output shaft end of each electric screwdriver.
[0020] In a preferred embodiment, the indexing and feeding mechanism further includes three feeding components that are fixed to the top of the base and distributed circumferentially around a vertical axis. Each feeding component includes a vertical frame fixed to the top of the base, and a sliding table is movably provided through one side of the vertical frame.
[0021] The sliding platform consists of an L-shaped support platform that runs through the vertical frame and a straight bar that is integrally formed with the L-shaped support platform. Both ends of the straight bar are fixedly provided with guide rods that can move through the vertical frame. Each guide rod is fitted with a spring that fixes the straight bar to the vertical frame. The top of the L-shaped support platform is fixedly provided with a material support for carrying materials.
[0022] In a preferred embodiment, the feeding assembly further includes three vertical plates fixed to the bottom of the turntable and distributed circumferentially around the vertical axis. Each vertical plate has an L-shaped rod fixedly connected to the middle of its outer side, and a trapezoidal plate fixedly provided on the inner side of each L-shaped support. A push bar is fixedly provided on the outer side of the end of each L-shaped rod away from the corresponding vertical plate. The three push bars and the three trapezoidal plates are equidistantly distributed in the vertical direction. Beneficial effects
[0023] The beneficial effects of this invention are:
[0024] 1. The present invention can drive three feeding components to push the variable capacity arc plate, drive disk and end cover respectively to the picking station by rotating the turntable. At the same time, the rotating circular plate drives the variable capacity arc plate feeding component, drive disk feeding component and end cover feeding component to enter the picking station and clamp the variable capacity arc plate, drive disk and end cover at the corresponding picking station. When moving to the position of the pump housing, the variable capacity arc plate, drive disk and end cover are installed in the pump housing in sequence and accurately.
[0025] 2. The present invention can use a rotating disc to squeeze the V-shaped block protruding from the corresponding assembly station, so that the moving V-shaped block drives the two clamps to move in opposite directions, thereby completing the automatic clamping and centering of the pump shell at the assembly station.
[0026] 3. The flood control pump of the present invention is not only easy to operate and maintain, but also easy to disassemble and assemble. It can be used as a single unit or in combination according to the actual flood control situation. At the same time, multiple flood control pumps used in combination can be driven by only one motor. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 is a schematic diagram of the single structure of the flood control pump of the present invention;
[0029] Figure 2 is a first-view exploded schematic diagram of a single unit of the flood control pump of the present invention;
[0030] Figure 3 is a second-view exploded schematic diagram of a single unit of the flood control pump of the present invention;
[0031] Figure 4 is a schematic diagram of the multi-body assembly structure of the flood control pump of the present invention;
[0032] Figure 5 is a schematic diagram of the overall structure of the automatic assembly equipment of the present invention;
[0033] Figure 6 is a schematic diagram of the actual overall processing structure of the automatic assembly equipment of the present invention;
[0034] Figure 7 is a schematic diagram of the clamping and centering mechanism of the automatic assembly equipment of the present invention.
[0035] Figure 8 is a schematic diagram of the indexing and feeding mechanism of the automatic assembly equipment of the present invention;
[0036] Figure 9 is a schematic diagram of the material feeding process of the automatic assembly equipment of the present invention;
[0037] Figure 10 is a schematic diagram of the variable capacity arc plate loading assembly of the automatic assembly equipment of the present invention.
[0038] Figure 11 is a schematic diagram of the variable-capacity arc plate loading assembly of the automatic assembly equipment of the present invention.
[0039] Figure 12 is a schematic diagram of the end cap feeding assembly structure of the automatic assembly equipment of the present invention;
[0040] Figure 13 is an enlarged schematic diagram of part A of the structure in Figure 12 of this invention.
[0041] The attached figures are labeled as follows: 1. Pump base; 2. Pump body; 21. Pump casing; 22. Drive shaft; 23. Fixing frame; 24. Variable displacement arc plate; 25. Disc; 26. Sleeve shaft one; 27. Eccentric disc; 28. End cover; 3. Drive source; 31. Waterproof cover; 32. Electric motor; 33. Sleeve shaft two; 4. Suction pipe; 5. Drain pipe; 6. Base; 7. Clamping and centering mechanism; 71. Interface bar; 72. Gear one; 73. L-shaped rack one; 74. L-shaped rack two; 75. U-shaped frame; 76. Through slot; 77. Clamping seat; 78. V-block; 79. Spring one; 8. Indexing and feeding mechanism; 81. Turntable; 82. Circular plate; 83. Feeding assembly; 831. Vertical frame; 832. Sliding table; 833. Guide rod; 834. Spring two 835. Material support; 836. Vertical plate; 837. L-shaped rod; 838. Push bar; 839. Trapezoidal plate; 84. Straight plate; 85. Variable capacity arc plate loading assembly; 851. Cylinder 1; 852. Limiting plate; 853. Limiting ring; 854. Gear 2; 855. Gear ring; 856. Cylinder 2; 857. Tightening plate; 86. Drive plate loading assembly; 861. Cylinder 3; 862. Negative pressure suction cup 1; 87. End cap loading assembly; 871. Cylinder 4; 872. Sleeve; 873. Ring plate; 874. T-shaped cylinder; 875. Negative pressure suction cup 2; 876. Spring 3; 877. Square groove; 878. Square column; 879. Electric screwdriver; 8710. Bolt sleeve; 9. Support; 10. Support plate; 11. Support ring. Embodiments of the present invention
[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0043] The flood control pump of this invention belongs to the category of liquid variable displacement machinery and is part of the energy-saving and environmental protection industry. It is mainly used to cope with drainage tasks in flood disasters and rainstorms, to ensure the safety of urban infrastructure and people's lives, and is an important piece of equipment for preventing flood disasters.
[0044] The automatic assembly equipment of the present invention belongs to the intelligent manufacturing equipment industry and is a type of processing equipment used to assemble the various parts that make up the pump body into a pump body.
[0045] Referring to Figures 1-4 in the specification, an embodiment of the present invention provides a subway flood control pump. The pump includes a pump body 2, a pump base 1, and a drive source 3. The pump base 1 is fixedly disposed at the bottom of the pump body 2. The bottom end of the pump base 1 is configured with a V-shaped structure, which can effectively reduce the resistance encountered by the flood control pump when it is submerged in water. The drive source 3 is fixedly installed at one end of the pump body 2 by locking bolts. The pump body 2 includes a pump casing 21. A drive shaft 22 is rotatably mounted on the end of the pump casing 21 near the drive source 3 via a bearing. The drive shaft 22 consists of a cylindrical section and cross-shaped block sections fixed at both ends of the cylindrical section. A fixing frame 23 is fixedly disposed inside the pump casing 21. The fixing frame 23 consists of a support plate and a collar fixed to the top of the support plate. The pump housing 21 is composed of a fixed frame 23 with a variable capacity arc plate 24 on the outside. The pump housing 21 has a drive disc on the outside of the corresponding end of the drive shaft 22 at the end away from the drive source 3. The pump housing 21 has an end cover 28 fixedly installed at the end away from the drive source 3 by locking bolts. The pump housing 21 is also connected to an L-shaped suction pipe 4 and a drain pipe 5 (see Figure 1 for installation position). In actual use, a water supply pipe can be connected to the outlet end of the drain pipe 5 to guide the pumped water out. At the same time, a filter assembly can be installed at the inlet end of the suction pipe 4 to prevent impurities in the water from being sucked in and causing blockage. In addition, flanges are fixed at both ends of the pump housing 21 to facilitate the joint use of multiple flood control pumps.
[0046] Furthermore, the drive disk includes a disk 25 and a sleeve shaft 26 fixed at the center of one side of the disk 25. The sleeve shaft 26 has a cross groove at the axis of the shaft that matches the cross block segment at the corresponding end of the drive shaft 22. The cross groove passes through the disk 25. The sleeve shaft 26 is movably inserted into the inside of the collar. At the same time, the cross block segment of the drive shaft 22 near the sleeve shaft 26 is movably inserted into the inside of the cross groove. An eccentric disk 27 is fixed on one side of the disk 25 and sleeved on the outside of the sleeve shaft 26. One end of the collar is movably inserted into the annular cavity formed between the eccentric disk 27 and the sleeve shaft 26. The variable displacement arc plate 24 is movably sleeved on the outside of the eccentric disk 27.
[0047] The drive source 3 includes a waterproof cover 31 fixedly installed on the outside of the pump housing 21 by locking bolts. An electric motor 32 is fixedly installed inside the waterproof cover 31. The output shaft end of the electric motor 32 is fixedly connected to a sleeve shaft 33 for controlling the rotation of the drive shaft 22. One end of the sleeve shaft 33 is provided with a cross groove that matches the cross block segment at the corresponding end of the drive shaft 22.
[0048] It should be noted that after the variable displacement arc plate 24 and the drive disc are encapsulated inside the pump housing 21 using the end cover 28, the variable displacement arc plate 24 is always kept in a state of being sleeved on the outside of the eccentric disc 27. At the same time, the support plate on the fixing frame 23 is exactly inside the straight slit formed at both ends of the variable displacement arc plate 24. After one end of the drive shaft 22 is inserted into the cross groove, the end of the cross groove near the end cover 28 is not filled. The depth of the unfilled part inside the cross groove is the same as the length of the cross block segment on the drive shaft 22 that is inserted into the sleeve shaft 23. During the process of pumping water using this flood control pump, the drive shaft 22 is rotated at high speed by starting the motor 32. The high-speed rotating drive shaft 22 drives the drive disc to rotate synchronously. Due to the setting of the eccentric disc 27, the variable displacement arc plate 24 not only moves vertically but also swings left and right under the restriction of the support plate as the eccentric disc 27 rotates synchronously with the disc 25.
[0049] The specific cycle process of the variable volume arc plate 24 is as follows: Initial state (i.e., the straight seam formed by the two ends of the variable volume arc plate 24 is at the lowest position of the support plate as shown in Figure 2) → gradually move upward while swinging to the right. After passing the water outlet of the suction pipe 4, the outer side of the swing direction always moves in contact with the inside of the pump casing 21 and squeezes the water inside the pump casing 21 to be discharged from the drain pipe. While discharging the water inside the pump casing 21, the change in the volume inside the pump casing 21 draws the water from the outside back into the pump casing 21 → move upward to the highest point → gradually move upward while swinging to the right → initial state.
[0050] Furthermore, in practical applications, if it is necessary to increase the drainage volume, the end cover 28 can be removed, and the end of another pump body 2 near the motor 32 can be directly blocked to the end of the first pump body 2 where the end cover 28 is installed. The two flanges at opposite ends of the two adjacent pump bodies 2 can be connected and fixed by locking bolts. In this way, multiple flood control pumps can be used in combination (see Figure 4). Only the end cover 28 needs to be used to seal the pump body at the end, and multiple flood control pumps used in combination can be driven by only one motor 32.
[0051] Example 1: Referring to Figures 5-6 and 8 of the specification, an automatic assembly device for a subway flood control pump according to an embodiment of the present invention is used to assemble the pump body 2 of the aforementioned subway flood control pump. The automatic assembly device includes a base 6, a support 9 is fixedly provided at one end of the top of the base 6, a support plate 10 is provided at the top of the support 9, and a rotary feeding mechanism 8 is provided at one end of the support plate 10 at the top of the base 6 for rotating and alternately feeding the variable capacity arc plate 24, the drive disk and the end cover 28.
[0052] The indexing and feeding mechanism 8 includes a motor 2 fixedly installed on the top of the base 6. The output shaft of the motor 1 is fixedly connected to a vertical shaft. A circular plate 82 and a turntable 81 are fixedly mounted on the outside of the vertical shaft from top to bottom. The turntable 81 has a slot as shown in Figure 5 on its outer side, and the opening of the slot corresponds to a central angle of 90°. Three straight plates 84 are fixedly arranged around the vertical shaft on the outer side of the circular plate 82. The specific distribution of the straight plates 84 is shown in Figure 5. A variable-capacity arc plate feeding assembly 85, a drive plate feeding assembly 86, and an end cap feeding assembly 87 are respectively installed on the end of the three straight plates 84 away from the circular plate 82. The turntable 81 and the V-block 78 are arranged in a horizontal and coplanar manner.
[0053] The indexing and feeding mechanism 8 also includes three feeding components 83 that are fixed on the top of the base 6 and distributed circumferentially around the vertical axis.
[0054] It should be noted that during the process of sequentially assembling the variable displacement arc plate 24, drive disk, and end cover 28 into the pump housing 21 on top of the support plate 10, the vertical shaft is driven to rotate by the second motor, thereby driving the circular plate 82 and the turntable 81 to rotate synchronously. The rotating turntable 81 then drives the three feeding components 83 to push the variable displacement arc plate 24, drive disk, and end cover 28 they each carry to the picking station. The rotating circular plate 82 then drives the variable displacement arc plate feeding component 85, drive disk feeding component 86, and end cover feeding component 87 to pick up the variable displacement arc plate 24, drive disk, and end cover 28 at the corresponding picking station when they enter the picking station. When they move to the position of the pump housing 21, the variable displacement arc plate 24, drive disk, and end cover 28 are then precisely installed into the pump housing 21 in sequence.
[0055] Specifically, as shown in Figures 5-6 and 10-11, the variable displacement arc plate loading assembly 85 includes a cylinder 851 fixedly installed on the top of a straight plate 84. A limiting plate 852 is fixedly connected to one end of the cylinder 851 that passes through the straight plate 84. A limiting ring 853 is sleeved on the outside of the limiting plate 852. Three cylinders 856 evenly distributed in a ring are fixedly installed on the outside of the limiting ring 853. A clamping plate 857 is fixedly connected to the end of the telescopic end of each cylinder 856. An anti-slip soft rubber pad is fixedly provided on the clamping side of each clamping plate 857 to effectively prevent the variable displacement arc plate from being clamped. 24 falls down. At the same time, an image sensor is installed at the bottom of the corresponding straight plate 84 to detect whether the straight seam on the clamped variable displacement arc plate 24 is aligned with the support plate on the fixed frame 23. Since the anti-slip soft rubber pad will deform during the clamping process, when the deformation has a small degree of recovery and is irreversible, during the process of cylinder 2 856 pushing the clamping plate 857 to clamp the target variable displacement arc plate 24, the anti-slip soft rubber pad that contacts the variable displacement arc plate 24 first will cause the straight seam on the variable displacement arc plate 24 to shift. If the variable displacement arc plate 24 is directly sent into the pump housing 21 in this state, it may be impossible to put it in.
[0056] A power component is provided between the limiting plate 852 and the limiting ring 853. The power component includes a motor 3 fixedly installed on the top of the limiting plate 852 and a gear ring 855 fixedly installed on the top of the limiting ring 853. The output shaft end of the motor 3 is fixedly connected to a gear 2 854 that meshes with the gear ring 855.
[0057] It should be noted that during the feeding process of the variable displacement arc plate 24, after the variable displacement arc plate 24 enters the material handling station of the variable displacement arc plate 24, the cylinder 1 851 will be controlled to push the limiting plate 852 downward, and drive the clamping part (composed of cylinder 2 856 and the clamping plate 857 installed at the telescopic end of cylinder 2 856) installed on the outside of the limiting ring 853 to extend into the interior of the variable displacement arc plate 24. Then, the cylinder 2 856 will be controlled to push the clamping plate 857 to clamp the variable displacement arc plate 24 to be clamped, and then, with the rotation of the circular plate 82, it will enter the position where the pump housing 21 is located, waiting for unloading.
[0058] When the clamped variable displacement arc plate 24 is delivered to the corresponding position on the pump housing 21, the image sensor installed on the corresponding straight plate 84 will detect whether the straight seam on the variable displacement arc plate 24 is aligned with the support plate on the fixed frame 23. If the two are aligned, the variable displacement arc plate 24 is directly delivered into the pump housing 21. If the two are not aligned, the motor three will be started to drive the gear two 854 to rotate, and the rotating gear two 854 will drive the gear ring 855 to rotate, thereby driving the limit ring 853 to rotate. This, in conjunction with the information collected by the image sensor, determines whether the straight seam on the variable displacement arc plate 24 is aligned with the support plate on the fixed frame 23.
[0059] Specifically, as shown in Figures 5-6 and 8, the drive plate feeding assembly 86 includes a cylinder 3 861 fixedly installed on the top of the straight plate 84. The telescopic end of the cylinder 3 861 is fixedly connected to a negative pressure suction cup 862 through the straight plate 84. The drive plate feeding assembly 86 also includes a vacuum pump for controlling the negative pressure suction cup 862 to generate negative pressure.
[0060] It should be noted that during the feeding process of the drive plate, after the drive plate enters the material handling station, the cylinder 3 861 will be controlled to push the negative pressure suction cup 1 862 downward to fit tightly with the disc 25 on the drive plate, and the vacuum pump will be controlled to draw air, so that the negative pressure suction cup 1 862 generates a negative pressure, thereby firmly sucking the drive plate, and then, with the rotation of the disc 82, it enters the position of the pump housing 21, waiting for unloading.
[0061] Specifically, as shown in Figures 5-6 and 12-13, the end cap feeding assembly 87 includes a cylinder 871 fixedly installed on the top of a straight plate 84. A sleeve 872 is fixedly connected to one end of the cylinder 871 that passes through the straight plate 84. A T-shaped cylinder 874 is movably inserted into the sleeve 872. A negative pressure suction cup 875 is fixedly installed at the bottom of the T-shaped cylinder 874. The end cap feeding assembly 87 also includes a vacuum pump for controlling the negative pressure generated by the negative pressure suction cup 875. The sleeve 872 is fixedly connected to the outside of the T-shaped cylinder 874. When the end cap 28 to be assembled is lifted by the negative pressure suction cup 2 875, the spring 876 of the T-shaped cylinder 874 will be stretched, but the top of the T-shaped cylinder 874 will remain inserted into the sleeve 872. The top of the T-shaped cylinder 874 is provided with a square groove 877, and a square post 878 is fixedly provided inside the sleeve 872 and is movably inserted into the square groove 877. The arrangement of the square groove 877 and the square post 878 can ensure that the T-shaped cylinder 874 will not rotate relative to the sleeve 872 during the compression of the spring 876.
[0062] The end cap feeding assembly 87 also includes an annular plate 873 fixedly sleeved at the bottom edge of the outer side of the sleeve 872. Multiple electric screwdrivers 879 are fixedly installed on the annular plate 873 in a ring-shaped and uniformly distributed manner. Each electric screwdriver 879 has a bolt sleeve 8710 fixedly connected to the end of its output shaft.
[0063] It should be noted that during the feeding process of end cap 28, after end cap 28 enters the material handling station, the cylinder 871 will be controlled to push the sleeve 872 downward, so that the negative pressure suction cup 875 installed at the bottom of the sleeve 872 will move downward until it is tightly attached to end cap 28. The vacuum pump will be controlled to draw air, so that the negative pressure suction cup 875 generates a negative pressure, thereby firmly sucking the end cap 28. Then, with the rotation of the circular plate 82, it will enter the position where the pump housing 21 is located, waiting for unloading.
[0064] When the end cap 28 to be picked up is delivered to the corresponding position on the pump housing 21, cylinder 4 871 will push the picked-up end cap 28 downward. After the end cap 28 is fastened to the corresponding end of the pump housing 21, cylinder 4 871 will continue to push the sleeve 872 downward. At this time, as the sleeve 872 moves downward, the spring 3 876 will be gradually compressed. When the bolt sleeve 8710 fixed on the electric screwdriver 879 is put on the locking bolt that has been pre-tightened on the end cap 28, as the sleeve 872 continues to move downward, the electric screwdriver 879 will be energized and drive the bolt sleeve 8710 to rotate, thereby realizing the fixing of the end cap 28 to the end of the pump housing 21 by the locking bolt in one step.
[0065] Specifically, as shown in Figures 5-6 and 8-9, the feeding assembly 83 includes a vertical frame 831 fixed to the top of the base 6. A sliding table 832 is movably connected through one side of the vertical frame 831. The sliding table 832 consists of an L-shaped support platform that passes through the vertical frame 831 and a straight bar that is integrally set with the L-shaped support platform. Guide rods 833 that movably pass through the vertical frame 831 are fixedly provided on both ends of the straight bar facing the vertical frame 831. A spring 834 that fixes the straight bar and the vertical frame 831 is sleeved on the outside of each guide rod 833. A material tray 835 for carrying materials is fixedly provided on the top of the L-shaped support platform. When the spring 834 is in its natural state, the guide rod 833 remains in the state of movably passing through the corresponding vertical frame 831. At this time, the material tray 835 is in the initial feeding position (i.e., the position where the variable capacity arc plate 24, drive disk and end cap 28 to be assembled are placed on the corresponding material tray 835 in cooperation with the robotic arm).
[0066] The feeding assembly 83 also includes three vertical plates 836 fixed to the bottom of the turntable 81 and distributed circumferentially around the vertical axis. Each vertical plate 836 has an L-shaped rod 837 fixedly connected to the middle of its outer side. Each L-shaped support has a trapezoidal plate 839 fixedly provided on its inner side. Each L-shaped rod 837 has a pusher 838 fixedly provided on its outer side at the end away from the corresponding vertical plate 836. The three pushers 838 and the three trapezoidal plates 839 are equidistantly distributed in the vertical direction.
[0067] It should be noted that during the intermittent automatic feeding of the variable-capacity arc plate 24, the drive disk, and the end cap 28, the rotating turntable 81 sequentially drives the three feeding components 83 to push the variable-capacity arc plate 24, the drive disk, and the end cap 28, which they respectively carry, to the picking station. The rotating circular plate 82 then drives the variable-capacity arc plate feeding component 85, the drive disk feeding component 86, and the end cap feeding component 87 to pick up the variable-capacity arc plate 24, the drive disk, and the end cap 28 at the corresponding picking station when they enter the picking station. The specific process (see Figure 9) is as follows:
[0068] As the L-shaped rod 837 at position D' rotates to position A' (with a single rotation angle of 90°), the push bar 838 on the outside of the L-shaped rod 837 gradually presses the trapezoidal plate 839 at position A', causing the sliding table 832 to move towards the turntable 81. During this process, the moving L-shaped support pulls the straight bar to compress the spring 834 at its location. When the turntable 81 rotates 90°, it stops rotating. At this time, the push bar 838 pushes the trapezoidal plate 839 at position A' to its farthest point. The material support 835 at position A' drives the variable-capacity arc plate 24 at the initial feeding position to move to the corresponding picking position. At the same time, the variable-capacity arc plate feeding assembly 85 clamps the variable-capacity arc plate 24 at the picking position, while the L-shaped rod 837 at position E' rotates back to the initial position D'.
[0069] After the variable-capacity arc plate feeding assembly 85 picks up the variable-capacity arc plate 24 at the picking station, the turntable 81 continues to rotate 90°. During this process, as the L-shaped rod 837 at the initial D' position after one rotation passes the trapezoidal plate 839 at position A', the sliding table 832 at position A' will be reset under the restoring force of the corresponding spring 834, waiting for the next round of variable-capacity arc plate 24 feeding. As the L-shaped rod 837 at the initial D' position moves to position B', due to the corresponding L... The push bar 838 on the L-shaped rod 837 is misaligned with the trapezoidal plate 839 at position B'. Therefore, the sliding table 832 at position B' will not move during this process. Similarly, the sliding table 832 at position A' will not move when the L-shaped rod 837 at position E' moves to position A'. Only when the L-shaped rod 837 at position E' moves to position B' will it push the sliding table 832 at position B' to move, thus completing the feeding of the drive disc.
[0070] Similarly, the L-shaped rod 837 at position F' will not cause the corresponding sliding table 832 to move when it passes through positions A' and B'. It will only cause the sliding table at position C' to move when it passes through position C'. Correspondingly, the L-shaped rod 837 at position D' will not cause the corresponding sliding table 832 to move when it passes through positions B' and C'. Similarly, the L-shaped rod 837 at position E' will not cause the corresponding sliding table 832 to move when it passes through positions A' and C'. In this way, continuous intermittent automatic feeding of the variable-capacity arc plate 24, drive plate, and end cover 28 can be achieved. The structural design is ingenious.
[0071] Example 2: Referring to Figures 5-7 of the specification, an automatic assembly device for a subway flood control pump according to an embodiment of the present invention includes a base 6, a support 9 fixedly provided at one end of the top of the base 6, a support plate 10 provided at the top of the support 9, and support rings 11 fixedly provided at both ends of the top of the support plate 10 for supporting the pump casing 21. The height of the support rings 11 is higher than the length of the end of the drive shaft 22 extending to the outside of the pump casing 21, so that the pump casing 21 will not tilt after being placed on the support plate 10 because the drive shaft 22 protrudes to the outside of the pump casing 21. In addition, multiple circular rods are added at the bottom of the support plate 10 in a ring-shaped even distribution, and the bottom end face of the circular rods is movably fitted with the upper end face of the support 9, so that the support plate 10 is stably supported on the top of the support 9. A clamping and centering mechanism 7 for automatically clamping and centering the pump casing 21 is provided between the support 9 and the support plate 10.
[0072] The clamping and centering mechanism 7 includes a motor 1 fixedly installed on the top of the base 6 corresponding to the support 9 and a boundary strip 71 fixed in the middle of the bottom of the support plate 10. The output shaft of the motor 1 movably passes through one end of the support 9 and is fixedly connected to the boundary strip 71. Clamping components are provided on both sides of the boundary strip 71.
[0073] The clamping assembly includes a gear 72 rotatably mounted on the bottom of the base 6 via a shaft. Two sets of U-shaped frames 75 are fixedly provided on the bottom of the base 6 and are arranged symmetrically about the gear 72. L-shaped racks 73 and 74, which mesh with the gear 72, are respectively movably inserted inside the two sets of U-shaped frames 75. A V-shaped block 78 is fixedly provided at the end of the L-shaped rack 73 away from the boundary bar 71. A spring 79 is fixedly connected between the end of the L-shaped rack 74 and the boundary bar 71. When the spring 79 is in its natural state, the state of the V-shaped block 78 is as shown at the lower end of Figure 7.
[0074] The clamping assembly also includes two through slots 76 formed on the base 6. A clamping seat 77 is attached to the top of the base 6 at the position corresponding to the two through slots 76. The clamping seat 77 is composed of a vertical block attached to the upper surface of the base 6 and a stop bar with a V-shaped structure fixed to the surface of the vertical block. A connecting block that is slidably connected to the corresponding through slot 76 is fixed between the L-shaped rack 1 73 and the L-shaped rack 2 74 and the corresponding clamping seat 77.
[0075] It should be noted that after the pump casing 21 to be assembled is placed between two opposing clamps 77, and moved to the assembly station (i.e., the position of the end of the pallet 10 near the turntable 81 as shown in Figure 5) under the drive of motor 1, when the slot on the turntable 81 is directly facing the assembly station, the V-block 78 on the clamping assembly of the corresponding assembly station is in a state of extending out of the pallet 10 (as shown at the lower end of Figure 7). Then, as the turntable 81 rotates, the slot on the turntable 81 will gradually align with the V-block of the assembly station. When blocks 78 are staggered, as the turntable 81 rotates, the turntable 81 will gradually squeeze the V-block 78 at the assembly station. The pushed V-block 78 will simultaneously push the corresponding L-shaped rack 74 towards the boundary 71 and drive the corresponding gear 72 to rotate. The rotating gear 72 will drive the corresponding L-shaped rack 73 to move away from the boundary 71 and stretch the spring 79 at the corresponding position. At this time, the two clamps 77 will move towards each other and automatically clamp and center the pump housing 21 at the assembly station.
[0076] When the V-block 78 at the assembly station is completely misaligned with the slot on the turntable 81, the two clamps 77 that move in opposite directions complete the self-aligning clamping of the pump housing 21 at the assembly station. Then, maintaining this state, under the action of the variable displacement arc plate loading assembly 85, the drive disk loading assembly 86, and the end cover loading assembly 87, the variable displacement arc plate 24, the drive disk, and the end cover 28 are sequentially assembled into the pump housing 21, completing the automatic assembly action of the pump body 2.
[0077] In the above technical solution, the motor 32 mentioned is a Y-series fully enclosed self-ventilated squirrel-cage three-phase asynchronous motor; the motor mentioned is a servo motor with model number JSMA-PUC02D; the cylinder mentioned is a single-acting cylinder with model number DSA25N200; and the image sensor mentioned is an ISOCELL HPX series image sensor.
[0078] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.
Claims
1. An automatic assembly equipment for subway flood control pumps, characterized in that: The subway flood control pump includes a pump body (2), the pump body (2) includes a pump casing (21), a drive shaft (22) is rotatably mounted on one end of the pump casing (21), a fixing frame (23) is fixedly provided on the inner side of the pump casing (21), a variable displacement arc plate (24) is sleeved on the outer side of the fixing frame (23), a drive disc is provided inside the pump casing (21) and sleeved on the outer side of the corresponding end of the drive shaft (22), and an end cover (28) is fixedly installed on the other end of the pump casing (21). The automatic assembly equipment includes a base (6), a support (9) is fixedly provided at one end of the top of the base (6), a support plate (10) is provided at the top of the support (9), and a support ring (11) for supporting the pump casing (21) is fixedly provided at both ends of the top of the support plate (10). A clamping and centering mechanism (7) for automatically clamping and centering the pump casing (21) is provided between the support (9) and the support plate (10). The base (6) is provided with a rotary feeding mechanism (8) at one end of the pallet (10) for rotating and alternately feeding the variable-capacity arc plate (24), the drive disk and the end cover (28).
2. The automatic assembly equipment for a subway flood control pump according to claim 1, characterized in that: The clamping and centering mechanism (7) includes a motor that is fixedly installed on the top of the base (6) and corresponds to the support (9) and a boundary strip (71) fixed in the middle of the bottom of the support plate (10). The output shaft of the motor moves through one end of the support (9) and is fixedly connected to the boundary strip (71). Clamping components are provided on both sides of the boundary strip (71). The clamping assembly includes a gear 1 (72) rotatably mounted on the bottom of the base (6) via a shaft. Two sets of U-shaped frames (75) are fixedly provided on the bottom of the base (6) and are arranged symmetrically about the gear 1 (72). L-shaped rack 1 (73) and L-shaped rack 2 (74) meshing with the gear 1 (72) are respectively movably inserted inside the two sets of U-shaped frames (75). A V-shaped block (78) is fixedly provided at the end of L-shaped rack 1 (73) away from the boundary bar (71). A spring 1 (79) is fixedly connected between the end of L-shaped rack 2 (74) close to the boundary bar (71) and the boundary bar (71). The clamping assembly also includes two through slots (76) opened on the base (6). A clamping seat (77) is attached to the top of the base (6) at the position corresponding to the two through slots (76). A connecting block that is slidably connected to the corresponding through slot (76) is fixed between the L-shaped rack one (73) and the L-shaped rack two (74) and the corresponding clamping seat (77).
3. The automatic assembly equipment for a subway flood control pump according to claim 2, characterized in that: The indexing and feeding mechanism (8) includes a motor 2 fixedly installed on the top of the base (6). The output shaft of the motor 1 is fixedly connected to a vertical shaft. A circular plate (82) and a turntable (81) are fixedly fitted on the outside of the vertical shaft from top to bottom. Three straight plates (84) are fixedly arranged around the vertical shaft on the outside of the circular plate (82). A variable-capacity arc plate feeding assembly (85), a drive plate feeding assembly (86), and an end cap feeding assembly (87) are respectively installed on the end of the three straight plates (84) away from the circular plate (82). The turntable (81) and the V-block (78) are arranged in a horizontal and coplanar manner.
4. The automatic assembly equipment for a subway flood control pump according to claim 3, characterized in that: The variable-capacity arc plate loading assembly (85) includes a cylinder (851) fixedly installed on the top of the straight plate (84). The telescopic end of the cylinder (851) passes through one end of the straight plate (84) and is fixedly connected to a limiting plate (852). A limiting ring (853) is sleeved on the outside of the limiting plate (852). Three cylinders (856) are fixedly installed on the outside of the limiting ring (853) in a ring-shaped even distribution. Each cylinder (856) has a tightening plate (857) fixedly connected to the telescopic end of its telescopic end.
5. The automatic assembly equipment for a subway flood control pump according to claim 4, characterized in that: A power component is provided between the limiting disk (852) and the limiting ring (853). The power component includes a motor three fixedly installed on the top of the limiting disk (852) and a gear ring (855) fixedly installed on the top of the limiting ring (853). The output shaft end of the motor three is fixedly connected to a gear two (854) that meshes with the gear ring (855).
6. The automatic assembly equipment for a subway flood control pump according to claim 3, characterized in that: The drive plate feeding assembly (86) includes a cylinder three (861) fixedly installed on the top of the straight plate (84), and a negative pressure suction cup one (862) is fixedly connected to one end of the cylinder three (861) that passes through the straight plate (84).
7. The automatic assembly equipment for a subway flood control pump according to claim 3, characterized in that: The end cap feeding assembly (87) includes a cylinder four (871) fixedly installed on the top of the straight plate (84). The telescopic end of the cylinder four (871) passes through one end of the straight plate (84) and is fixedly connected to a sleeve (872). A T-shaped cylinder (874) is movably inserted inside the sleeve (872). A negative pressure suction cup two (875) is fixedly installed at the bottom end of the T-shaped cylinder (874). A spring three (876) is sleeved on the outside of the T-shaped cylinder (874) to fix and connect the sleeve (872) and the T-shaped cylinder (874). The top of the T-shaped cylinder (874) is provided with a square groove (877), and a square column (878) is fixedly provided inside the sleeve (872) and is movably inserted into the square groove (877).
8. The automatic assembly equipment for a subway flood control pump according to claim 7, characterized in that: The end cap feeding assembly (87) also includes a ring plate (873) fixedly sleeved at the bottom edge of the outer side of the sleeve (872). Multiple electric screwdrivers (879) are fixedly installed on the ring plate (873) in a ring-shaped and uniformly distributed manner. Each electric screwdriver (879) has a bolt sleeve (8710) fixedly connected to the end of its output shaft.
9. The automatic assembly equipment for a subway flood control pump according to claim 3, characterized in that: The indexing and feeding mechanism (8) also includes three feeding components (83) fixed on the top of the base (6) and distributed around the vertical axis. The feeding components (83) include a vertical frame (831) fixed on the top of the base (6), and a sliding table (832) is movably provided on one side of the vertical frame (831). The sliding platform (832) consists of an L-shaped support that passes through the vertical frame (831) and a straight bar that is integrally set with the L-shaped support. Both ends of the straight bar are fixed with guide rods (833) that pass through the vertical frame (831) on the side facing the vertical frame (831). Each guide rod (833) is fitted with a spring (834) that fixes the straight bar and the vertical frame (831) on the outside. The top of the L-shaped support is fixed with a material support (835) for carrying materials.
10. An automatic assembly device for a subway flood control pump according to claim 9, characterized in that: The feeding assembly (83) also includes three vertical plates (836) fixed to the bottom of the turntable (81) and arranged in a circumferential manner around the vertical axis. Each vertical plate (836) has an L-shaped rod (837) fixedly connected to the middle of its outer side. Each L-shaped support has a trapezoidal plate (839) fixedly provided on its inner side. Each L-shaped rod (837) has a push bar (838) fixedly provided on its outer side at the end away from the corresponding vertical plate (836). The three push bars (838) and the three trapezoidal plates (839) are equidistantly distributed in the vertical direction.