A urea pump assembly equipment

Abstract

This utility model discloses a urea pump assembly device, including a first assembly component, a second assembly component, and a conveying component disposed between the first and second assembly components. A first lubrication mechanism is provided between the first assembly component and the conveying component, and a second lubrication mechanism is provided on the side of the second assembly component. The first assembly component is located at a first station and includes a first positioning seat, and a first pressing mechanism and a second pressing mechanism disposed above the first positioning seat. The first positioning seat is used to position the product body. Parts are pressed onto the product body by the first pressing mechanism and the second pressing mechanism, respectively. The first and second pressing mechanisms are spaced apart on a sliding component. A press is provided above the first and second pressing mechanisms, and the first and second pressing mechanisms selectively correspond to the press. The second assembly component is located at a second station. Through semi-automatic operation, a balance can be achieved between production efficiency and cost, resulting in higher market acceptance.

Description

Technical Field

[0001] This utility model relates to the technical field of urea pump processing equipment, and in particular to a urea pump assembly equipment. Background Technology

[0002] The urea pump is a core component of the SCR (Selective Catalytic Reduction) system in diesel vehicles, used to precisely inject urea solution into the exhaust pipe to reduce nitrogen oxide emissions. The urea pump has a precise structure, and the assembly quality of its internal components directly affects the system's performance. In existing technologies, the press-fitting of urea pump components often uses a single press head device, requiring frequent press head changes to adapt to the assembly requirements of different parts, resulting in cumbersome operation. Furthermore, some assembly equipment uses automated production lines, which are long and occupy a large amount of space. Utility Model Content

[0003] The purpose of this utility model is to solve the technical problems of low pressing efficiency of urea pump parts, large footprint of automated production lines, and high cost in the existing technology.

[0004] To achieve the objectives of this utility model, the following technical solution is adopted: A urea pump assembly device includes a first assembly component, a second assembly component, and a conveying component disposed between the first and second assembly components. The conveying component is used to convey product parts. A first lubrication mechanism is provided between the first assembly component and the conveying component. A second lubrication mechanism is provided on the side of the second assembly component. The first assembly component is disposed at a first station and includes a first positioning seat, and a first pressing mechanism and a second pressing mechanism disposed above the first positioning seat. The first positioning seat is used to position the product body. Parts are pressed onto the product body by the first pressing mechanism and the second pressing mechanism respectively. The first and second pressing mechanisms are spaced apart on a sliding component. A press is provided above the first and second pressing mechanisms. The first and second pressing mechanisms selectively correspond to the press. The second assembly component is disposed at a second station, and parts are pressed onto the product body at the second station by the second assembly component.

[0005] In some embodiments, the conveying assembly includes a first conveying channel and a second conveying channel that are staggered vertically, and guide rods are provided in the first and second conveying channels, with the guide rods being inclined.

[0006] In some embodiments, the outlet portions of the first and second conveying channels are provided with limiting portions, which are formed by bending a guide rod and extend out of the first and second conveying channels.

[0007] In some embodiments, a grinding device is provided below the outlet of the conveying assembly, and the end of the part is ground by the grinding device.

[0008] In some embodiments, the second assembly includes a second positioning seat and a third pressure rod disposed above the second positioning seat, the third pressure rod being vertically disposed.

[0009] In some embodiments, the first assembly component includes a first pressing mechanism and a second pressing mechanism. The first and second pressing mechanisms are spaced apart on the sliding assembly and located above the first positioning seat. A press is provided above the first and second pressing mechanisms. The first and second pressing mechanisms selectively correspond to the press. The first pressing mechanism includes a first pressing rod and a first pressing head disposed at the lower end of the first pressing rod. The first pressing head is adapted to a first part. The second pressing mechanism includes a second pressing rod and a second pressing head disposed at the lower end of the second pressing rod. The second pressing head is adapted to a second part or a third part. The first and second pressing rods are arranged in parallel and correspond to the telescopic rod of the press.

[0010] In some embodiments, the first pressing mechanism includes a first guide post and an eccentric control mechanism disposed between the first guide post and the first pressing rod, such that the first pressing rod and the first guide post are radially movably connected. The eccentric control mechanism includes a sliding plate and a radial positioning pin. The sliding plate is disposed below the first guide post and is connected to a gap hole below the first guide post through the radial positioning pin. The first pressing rod is disposed below the sliding plate.

[0011] In some embodiments, the first pressure head includes a positioning sleeve, which is slidably disposed on the first pressure rod. The lower end of the first pressure rod is provided with an adsorption port. When the adsorption port adsorbs the first part, the lower end of the positioning sleeve is located below the adsorption port and surrounds the periphery of the first part.

[0012] In some embodiments, the outer wall of the first pressure rod is provided with a groove, the positioning sleeve has an annular hole, a positioning pin is provided in the annular hole, one end of the positioning pin abuts against the groove, and the other end abuts against the elastic ring. In some embodiments, the second pressure head is provided with a positioning member and an elastic member connected to the positioning member. The positioning member is axially movable and protrudes from the lower end face of the second pressure head. When the second part is mated with the second pressure head, the positioning member is correspondingly arranged with the eccentric hole of the second part. When the third part is mated with the second pressure head, the positioning member is pressed into the second pressure head.

[0013] The urea pump assembly equipment provided by this utility model has the following advantages: This utility model of a urea pump pressing device achieves rapid pressing of different parts by setting two sets of components, eliminating the need for frequent pressure head changes and significantly improving production efficiency. The inclusion of a conveying component and a lubrication component enables rapid parts transport. After manual lubrication, parts are assembled into designated assembly components for pressing. Workers can quickly switch between different workstations, facilitating manual operation. Through semi-automatic operation, a balance is achieved between production efficiency and cost, resulting in greater market acceptance. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of a urea pump assembly device provided in an embodiment of this utility model.

[0016] Figure 2 This is a schematic diagram of the conveying assembly provided in an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the second assembly component provided in an embodiment of the present invention.

[0018] Figure 4 This is a perspective view of the first assembly component provided in an embodiment of the present invention.

[0019] Figure 5 This is a schematic diagram of the first assembly component provided in an embodiment of the present invention.

[0020] Figure 6 This is a cross-sectional view of the first assembly component provided in an embodiment of the present invention.

[0021] Figure 7 This is a schematic diagram of the eccentric control mechanism provided in an embodiment of the present invention.

[0022] Figure 8 This is a schematic diagram of the radial locating pin provided in an embodiment of the present invention.

[0023] Figure 9 This is a schematic diagram of the first pressure head provided in an embodiment of the present invention.

[0024] Figure 10 This is a schematic diagram of the second pressure head provided in an embodiment of the present invention.

[0025] Figure 11 This is a perspective view of the second pressure head provided in an embodiment of the present invention.

[0026] Figure 12 This is a schematic diagram of the second part provided in an embodiment of the present invention.

[0027] Figure 13 This is a schematic diagram of the second pressure head adsorbing the third part according to an embodiment of the present invention.

[0028] In the attached diagram: 1. First pressing mechanism; 2. Second pressing mechanism; 3. Sliding assembly; 4. First positioning seat; 5. Press; 10. First part; 11. First pressure rod; 12. First pressure head; 13. First guide post; 14. Sliding plate; 15. Radial positioning pin; 16. Fixed seat; 17. Guide sleeve; 18. Fixing component; 19. Centering bushing; 20. Second part; 21. Second pressure rod; 22. Second pressure head; 30. Third part; 40. Part to be assembled; 51. Telescopic rod; 81. Grinding washer; 810. Grinding wheel; 100. First assembly assembly; 110. First positioning seat; 111. Suction port; 112. Groove; 121. Positioning sleeve; 122. Lower end; 123. 124. Annular hole; 125. Locating pin; 131. Elastic ring; 200. Gap hole; 201. Second assembly component; 202. Eccentric hole; 203. Limiting hole; 204. Center hole; 210. Second positioning seat; 220. Third pressure rod; 221. Positioning component; 222. Elastic component; 223. Detection sensor; 224. Negative pressure channel; 225. Limiting rod; 2211. Rod part; 230. Cylinder; 300. Conveying component; 310. First conveying channel; 320. Second conveying channel; 330. Guide rod; 331. Limiting part; 400. First lubrication mechanism; 500. Second lubrication mechanism; 600. First station; 700. Second station; 800. Grinding device. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0030] In this embodiment, "several" and "more than" refer to two or more. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] like Figures 1 to 13 As shown, this embodiment provides a urea pump assembly device, including a first assembly assembly 100, a second assembly assembly 200, and a conveying assembly 300 disposed between the first and second assembly assemblies. The conveying assembly 300 is used to convey product parts. In this embodiment, the first assembly assembly 100 is used to assemble three types of parts, namely, first to third parts. In this embodiment, the first part 10 is a throttle valve, the second part 20 is a buffer block, and the third part 30 is a filter element. Other parts (filter element cover, balancing unit) are assembled via the second assembly assembly 200. A first lubrication mechanism 400 is provided between the first assembly assembly 100 and the conveying assembly 300 to provide lubricating oil to the parts, which are then placed on the first lubrication mechanism 400 for lubrication. A second lubrication mechanism 500 is provided on the side of the second assembly assembly 200 to provide lubricating oil. The first and second lubrication mechanisms 400 facilitate lubrication of the parts. The first assembly component 100 is disposed at the first station 600 and includes a first positioning seat 110, and a first pressing mechanism 1 and a second pressing mechanism 2 disposed above the first positioning seat 110. The first positioning seat 110 is used to position the product body, i.e., the part to be assembled 40. The part is pressed onto the product body by the first pressing mechanism 1 and the second pressing mechanism 2 respectively. The first and second pressing mechanisms are spaced apart on the sliding component 3. A press 5 is disposed above the first and second pressing mechanisms. The first and second pressing mechanisms selectively correspond to the press 5. The second assembly component 200 is disposed at the second station 700, and the part is pressed onto the product body at the second station 700 by the second assembly component 200.

[0033] Specifically, the conveying assembly 300 includes a first conveying channel 310 and a second conveying channel 320 that are staggered vertically. Guide rods 330 are provided in both the first and second conveying channels, and these guide rods 330 are inclined. Parts are output from the first and second conveying channels and slide to their ends on the guide rods 330. The inclined guide rods facilitate part output. A limiting part 331 is provided at the outlet of the first and second conveying channels. The limiting part 331 is formed by bending the guide rods 330 and extends out of the first and second conveying channels. When a part rolls to the position of the limiting part 331, it is blocked, making it convenient for workers to remove the part. A grinding device 800 is provided below the outlet of the conveying assembly 300. The end of the part is ground by the grinding device 800, which includes grinding wheels 810. The end of the part is correspondingly positioned with two grinding wheels 810, which are driven by a motor to rotate and perform grinding. The second assembly component 200 includes a second positioning seat 210 and a third pressure rod 220 disposed above the second positioning seat 210. The third pressure rod 220 is vertically disposed and is driven to move up and down by a cylinder 230. The part is placed at the lower end of the third pressure rod 220, thereby pressing the part into the part to be assembled 40 disposed on the second positioning seat 210.

[0034] like Figures 4 to 13As shown, the first assembly component 100 provided in this embodiment includes a first pressing mechanism 1 and a second pressing mechanism 2. The first and second pressing mechanisms are spaced apart on the sliding component 3 and located above the first positioning seat 4. The first and second pressing mechanisms 2 can move through the sliding component 3. In this embodiment, the sliding component 3 is a horizontally arranged linear module, allowing the first and second pressing mechanisms to move horizontally. The first positioning seat 4 is used to position the part to be assembled 40, placing it below the first and second pressing mechanisms, and pressing the part into the part to be assembled 40. In this embodiment, the part to be assembled 40 is a urea pump housing. A press 5 is provided above the first and second pressing mechanisms. The first and second pressing mechanisms selectively correspond to the press 5, so that the first and second pressing mechanisms can be pressed by one press 5 respectively. The first pressing mechanism 1 includes a first pressing rod 11 and a first pressing head 12 disposed at the lower end of the first pressing rod 11. The first pressing head 12 is adapted to the first part 10, and the first part 10 is pressed into the part to be assembled 40 through the first pressing head 12. The second pressing mechanism 2 includes a second pressing rod 21 and a second pressing head 22 disposed at the lower end of the second pressing rod 21. The second pressing head 22 is adapted to either the second part 20 or the third part 30. The second pressing head 22 can selectively install either the second part or the third part, allowing the two pressing heads to install three types of parts. The first and second pressing rods are arranged in parallel and correspond to the telescopic rod 51 of the press 5. The first and second pressing rods are separated from the telescopic rod 51, so that the retraction of the telescopic rod 51 does not affect the movement of the first and second pressing rods. When the first or second pressing rod is needed, the corresponding pressing rod is moved below the telescopic rod 51 via a sliding assembly, and the pressing rod is pushed out by the extension of the telescopic rod 51.

[0035] The above technical solution enables a single press to selectively drive two sets of pressing mechanisms, reducing costs and saving equipment space. The two press heads can accommodate three types of parts, improving assembly efficiency. In this embodiment, the first part 10 is a throttle valve, the second part 20 is a buffer block, and the third part 30 is a filter element.

[0036] Specifically, the first pressing mechanism 1 includes a first guide post 13 and an eccentric control mechanism disposed between the first guide post 13 and the first pressing rod 11, which radially connects the first pressing rod 11 and the first guide post 13. When the first pressing rod 11 presses down, if the position of the first part 10 deviates slightly from that of the part to be installed 40, the eccentric control mechanism can cause the first part 10 to radially shift and align with the part to be installed 40 during installation. The eccentric control mechanism includes a sliding plate 14 and a radial positioning pin 15. The sliding plate 14 is disposed below the first guide post 13 and connected to the gap hole 131 below the first guide post 13 through the radial positioning pin 15. The first pressing rod 11 is disposed below the sliding plate 14. When the first part 10 is not aligned with the part to be installed 40, when the first pressing rod 11 presses down, the first part 10 collides with the part to be installed 40. The collision pressure causes the first pressing rod 11 to move radially, and the radial positioning pin 15 moves radially within the gap hole 131, allowing the first part 10 to adjust its position. A fixed seat 16 is provided below the sliding plate 14, and a guide sleeve 17 is provided in the fixed seat 16. The first pressure rod 11 passes through the guide sleeve 17. The fixed seat 16 is axially connected to the first guide post 13 through a fixing member 18, which is a bolt. The fixing member 18 is set in the centering bushing 19 and the grinding washer 181. Through the above technical solution, the fixed seat 16, the sliding plate 14, and the grinding washer 181 are fixedly suspended at the center of the flange surface of the first guide post 13 by the centering bushing 19 and the fixing member 18; the radial positioning pin 15 restricts the range of motion of the sliding plate 14 in the gap hole 131; when the first guide post 13 is pressed down by force, the first part 10 and the part to be installed 40 come into contact, and the entire mechanism self-centers.

[0037] Furthermore, the first pressure head 12 includes a positioning sleeve 121, which is slidably disposed on the first pressure rod 11, allowing it to slide axially relative to the first pressure rod 11. The lower end of the first pressure rod 11 is provided with an adsorption port 111, which communicates with a negative pressure channel within the first pressure rod 11, enabling it to adsorb the first part through negative pressure. When the adsorption port 111 adsorbs the first part 10, the lower end 122 of the positioning sleeve 121 is located below the adsorption port 111 and surrounds the periphery of the first part 10, thereby preventing radial displacement of the first part 10 and ensuring more accurate positioning. When the first part 10 is pressed into the assembly 40, and the first part 10 enters the mounting hole in the assembly 40, the positioning sleeve 121 abuts against the end face of the mounting hole, causing it to move upwards and detach from the first part 10.

[0038] Specifically, the outer wall of the first pressure rod 11 is provided with a groove 112, which is arranged axially. The positioning sleeve 121 has an annular hole 123, which surrounds the first pressure rod 11 and corresponds to the groove 112. A positioning pin 124 is provided in the annular hole 123. One end of the positioning pin 124 abuts against the groove 112, and the other end abuts against the elastic ring 125. The elastic ring 125 limits the positioning pin 124, allowing it to slide within the groove 112. When the positioning pin 124 slides down to below the groove 112, its lower end 122 is located around the first part 10. When the lower end 122 is subjected to pressure, the positioning sleeve 121 slides upward and disengages from the first part 10.

[0039] In this embodiment, the second pressure head 22 is provided with a positioning member 221 and an elastic member 222 connected to the positioning member 221. The positioning member 221 has a rod portion 2211, and the elastic member 222 is sleeved on the rod portion 2211. The elastic member 222 is a spring. The positioning member 221 is axially movable and protrudes from the lower end face of the second pressure head 22. When the second part 20 is mated with the second pressure head 22, the positioning member 221 is correspondingly arranged with the eccentric hole 201 of the second part 20, so that when the second part 20 is adsorbed on the second pressure head 22, the positioning member 221 can be inserted into the eccentric hole 201 to position the second part 20. When the third part 30 is mated with the second pressure head 22, the positioning member 221 is pressed into the second pressure head 22. Since the third part 30 does not have an eccentric hole corresponding to the positioning member 221, the positioning member 221 can be pressed into the second pressure head 22 under force, avoiding interference with the third part 30.

[0040] The above technical solution enables the second pressure head 22 to be adapted to the second part 20 and the third part 30, thereby improving the utilization rate of the second pressure head 22.

[0041] Furthermore, a detection sensor 223 is provided above the positioning member 221 to detect the position of the positioning member 221. When the third part 30 pushes the positioning member 221 upward, it moves towards the detection sensor 223, and the detection sensor 223 receives a signal. After the third part 30 is installed, the positioning member 221 resets, and the detection sensor 223 no longer detects a signal, thereby identifying the installation status of the third part 30. The detection sensor 223 can be an existing sensor such as a proximity sensor.

[0042] Furthermore, the second pressure head 22 is provided with a negative pressure channel 224, which communicates with the lower end face of the second pressure head 22, and the end face of the second part 20 or the third part 30 is in contact with the lower end face. When the negative pressure is activated, the negative pressure channel 224 sucks the second or third part in place by the negative pressure. A limiting rod 225 is provided on the side of the second pressure head 22, which is correspondingly provided with the limiting hole 202 of the second part 20, so that it can position the second part 20. A central hole 203 is provided in the middle of the second part 20, and the limiting hole 202 and the eccentric hole 201 are located around the central hole 203.

[0043] The technical principles of this utility model have been described above in conjunction with specific embodiments. However, it should be noted that these descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, other specific embodiments or equivalent substitutions of this utility model that can be conceived by those skilled in the art without creative effort will all fall within the scope of protection of this utility model.

Claims

1. A urea pump assembly device, characterized in that, The assembly includes a first assembly component, a second assembly component, and a conveying component disposed between the first and second assembly components. The conveying component is used to convey product parts. A first lubrication mechanism is provided between the first assembly component and the conveying component. A second lubrication mechanism is provided on the side of the second assembly component. The first assembly component is disposed at a first station and includes a first positioning seat, and a first pressing mechanism and a second pressing mechanism disposed above the first positioning seat. The first positioning seat is used to position the product body. Parts are pressed onto the product body by the first pressing mechanism and the second pressing mechanism respectively. The first and second pressing mechanisms are spaced apart on a sliding component. A press is provided above the first and second pressing mechanisms. The first and second pressing mechanisms selectively correspond to the press. The second assembly component is disposed at a second station. Parts are pressed onto the product body at the second station by the second assembly component.

2. The urea pump assembly equipment according to claim 1, characterized in that, The conveying assembly includes a first conveying channel and a second conveying channel that are staggered vertically. Guide rods are provided in the first and second conveying channels, and the guide rods are inclined.

3. The urea pump assembly equipment according to claim 2, characterized in that, The exit of the first and second conveying channels is provided with a limiting part, which is formed by bending a guide rod and extends out of the first and second conveying channels.

4. The urea pump assembly equipment according to claim 1, characterized in that, A grinding device is provided below the outlet of the conveying assembly, and the ends of the parts are ground by the grinding device.

5. The urea pump assembly equipment according to claim 1, characterized in that, The second assembly includes a second positioning seat and a third pressure rod disposed above the second positioning seat, the third pressure rod being vertically disposed.

6. The urea pump assembly equipment according to claim 1, characterized in that, The first assembly component includes a first pressing mechanism and a second pressing mechanism. The first and second pressing mechanisms are spaced apart on the sliding component and located above the first positioning seat. A press is provided above the first and second pressing mechanisms. The first and second pressing mechanisms selectively correspond to the press. The first pressing mechanism includes a first pressing rod and a first pressing head disposed at the lower end of the first pressing rod. The first pressing head is adapted to the first part. The second pressing mechanism includes a second pressing rod and a second pressing head disposed at the lower end of the second pressing rod. The second pressing head is adapted to the second part or the third part. The first and second pressing rods are arranged in parallel and correspond to the telescopic rod of the press.

7. The urea pump assembly equipment according to claim 6, characterized in that, The first pressing mechanism includes a first guide post and an eccentric control mechanism disposed between the first guide post and the first pressing rod, which enables the first pressing rod and the first guide post to be radially movably connected. The eccentric control mechanism includes a sliding plate and a radial positioning pin. The sliding plate is disposed below the first guide post and is connected to the gap hole below the first guide post through the radial positioning pin. The first pressing rod is disposed below the sliding plate.

8. The urea pump assembly equipment according to claim 7, characterized in that, The first pressure head includes a positioning sleeve, which is slidably disposed on the first pressure rod. The lower end of the first pressure rod is provided with an adsorption port. When the adsorption port adsorbs the first part, the lower end of the positioning sleeve is located below the adsorption port and surrounds the periphery of the first part.

9. The urea pump assembly equipment according to claim 8, characterized in that, The outer wall of the first pressure rod is provided with a groove, and the positioning sleeve has an annular hole. A positioning pin is provided in the annular hole, one end of which is pressed against the groove, and the other end is in contact with the elastic ring.

10. The urea pump assembly equipment according to claim 9, characterized in that, The second pressure head is provided with a positioning element and an elastic element connected to the positioning element. The positioning element is axially movable and protrudes from the lower end face of the second pressure head. When the second part is mated with the second pressure head, the positioning element is correspondingly set with the eccentric hole of the second part. When the third part is mated with the second pressure head, the positioning element is pressed into the second pressure head.

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