An EGR housing assembly mechanism

Abstract

The application provides an EGR shell assembly mechanism and relates to the technical field of semi-automatic assembly. The mechanism comprises an equipment platform, the top end of the equipment platform is provided with a positioning tool, an end cover shell tool, an end cover tool and a shell transverse movement mechanism, the positioning tool is located at the center of the top end of the equipment platform, the end cover shell tool and the end cover tool are respectively located on the two sides of the positioning tool, the shell transverse movement mechanism is located behind and above the positioning tool, and the end cover tool and the shell transverse movement mechanism are driven to move horizontally close to or away from the positioning tool through a screw rod driving mechanism. The EGR shell assembly mechanism is designed mechanically, automatic operation of EGR products in the assembly process is realized, human factors are reduced, the degree of automation of assembly is significantly improved, the assembly efficiency is improved, the labor intensity is reduced, and the production process is more smooth and efficient.

Description

Technical Field

[0001] This invention relates to the field of semi-automatic assembly technology, and more particularly to an EGR housing assembly mechanism. Background Technology

[0002] EGR products (see also) Figure 7 During the assembly process, several sets of flat tubes are arranged inside the outer shell, and connecting pieces are arranged on the outside and between the flat tubes. The two ends of the flat tubes are connected to the left and right end caps that are snapped onto the two ends of the shell. Currently, the assembly of this EGR product requires manual operation throughout the process and lacks effective auxiliary equipment. That is, the automation level of the auxiliary device is not high, which leads to low assembly efficiency and poor product quality. Therefore, we propose an EGR shell assembly mechanism. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies, such as the fact that EGR products require manual operation throughout the assembly process and lack effective auxiliary equipment, i.e., the automation level of auxiliary devices is not high, which leads to low assembly efficiency and poor product quality.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An EGR housing assembly mechanism includes an equipment platform. A positioning fixture, an end cap housing fixture, an end cap fixture, and a housing lateral movement mechanism are mounted on the top of the equipment platform. The positioning fixture is located at the center of the top of the equipment platform. The end cap housing fixture and the end cap fixture are located on both sides of the positioning fixture. The housing lateral movement mechanism is located on the back and above the positioning fixture. The end cap fixture and the housing lateral movement mechanism are driven laterally to move closer to / away from the positioning fixture by a lead screw drive mechanism. The positioning fixture includes a first comb tooth positioning block, a second comb tooth positioning block, a positioning block lifting cylinder, a flat tube clamping cylinder, and a clamping component. The first comb tooth positioning block is close to the end cap housing fixture side, while the second comb tooth positioning block is close to the end cap fixture side. The positioning block lifting cylinder has two cylinders respectively installed at the bottom of the first comb tooth positioning block and the second comb tooth positioning block. The flat tube clamping cylinder has four cylinders symmetrically arranged on the front and rear sides of the first comb tooth positioning block, with the output end facing the first comb tooth positioning block to install the clamping component. The end cap housing fixture includes a support plate a, a flat tube guide strip a, and a housing straightening cylinder. The flat tube guide strip a is installed on the support plate a, and the housing straightening cylinder is installed below the flat tube guide strip a. The output end faces the flat tube guide strip a and is equipped with a straightening seat. The end cap fixture includes a support plate b and a flat tube guide strip b, wherein the flat tube guide strip b is mounted on the support plate b; The outer casing lateral movement mechanism includes a support frame, front and rear telescopic cylinders, a displacement plate, a guide rail, a slider, left and right lateral movement cylinders, a lifting cylinder, and a gripper cylinder. Two sets of front and rear telescopic cylinders are installed on both sides of the front of the support frame near the top, and the output ends of the front and rear telescopic cylinders face the top of the positioning fixture and are mounted on the displacement plate. The guide rail is installed on the displacement plate and arranged laterally. The slider is slidably connected to the guide rail. By extending and retracting the left and right lateral movement cylinders installed on one side of the displacement plate, the slider can slide laterally on the guide rail. The lifting cylinder is installed on the slider and its output end faces the bottom. A gripper cylinder is installed at the bottom of the lifting cylinder.

[0005] Furthermore, both the first comb tooth positioning block and the second comb tooth positioning block are provided with a spacing groove separated by the comb teeth, and the spacing grooves on the first comb tooth positioning block and the second comb tooth positioning block correspond to each other. The comb teeth on the first comb tooth positioning block are arranged on the tooling side near the end cover shell. The spacing groove of the first comb tooth positioning block is used for placing flat tubes and placing connecting pieces between the flat tubes.

[0006] Furthermore, the number of flat tube guide strips a and b is the same as the number of spacer slots.

[0007] Furthermore, a pressure sensor is installed on the first comb positioning block to detect the overall weight of the flat tube and the connecting piece.

[0008] Furthermore, the lead screw drive mechanism is provided in two sets, including an upper lead screw drive mechanism and a lower lead screw drive mechanism. The lower lead screw drive mechanism drives the upper lead screw drive mechanism to approach the positioning fixture. The upper lead screw drive mechanism drives the support plate a and the support plate b to cause the flat tube guide strip a and the flat tube guide strip b to abut against the flat tube located above the first comb tooth positioning block.

[0009] Furthermore, both the upper lead screw drive mechanism and the lower lead screw drive mechanism are composed of a drive motor, a lead screw, and a slide rail. The upper lead screw drive mechanism and the lower lead screw drive mechanism are connected by a connecting plate, and the upper lead screw drive mechanism is connected to support plate a and support plate b by a connecting plate.

[0010] Furthermore, the flat tube clamping cylinder is mounted on the bottom bracket, and the length of the clamping member is the same as the lifting height of the positioning block lifting cylinder of the first comb tooth positioning block.

[0011] Furthermore, the flat tube guide strips a and b are provided with guide protrusions facing the flat tube end, which are used to abut against the interior of the flat tube.

[0012] Furthermore, the flat tube guide strip a and the flat tube guide strip b are respectively connected to the left end cap and the right end cap, and a shell is sleeved around the flat tube guide strip a.

[0013] Furthermore, a control panel is mounted on the front of the device platform.

[0014] Compared with the prior art, the beneficial effects of the present invention are: The EGR housing assembly mechanism proposed in this invention achieves automated operation of EGR products during the assembly process through mechanized design, reduces interference from human factors, and significantly improves the degree of automation in assembly. This not only improves assembly efficiency but also reduces labor intensity, making the production process smoother and more efficient.

[0015] The spacing grooves separated by the comb teeth on the first and second comb positioning blocks, along with the design of the flat tube guide strip, provide a strong guarantee for the accurate placement of the flat tube and connecting piece. Furthermore, through the design of the positioning fixture, end cap housing fixture, end cap fixture, and housing lateral movement mechanism, this invention can ensure the precise alignment and stable fixation of the flat tube, connecting piece, and left and right end caps during the assembly process, thereby improving the quality and consistency of the assembled products. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an EGR housing assembly mechanism provided by the present invention; Figure 2 A schematic diagram of the equipment platform structure of an EGR housing assembly mechanism provided by the present invention; Figure 3 This invention provides a schematic diagram of a positioning tooling structure for an EGR housing assembly mechanism; Figure 4 A schematic diagram of the end cap housing tooling structure of an EGR housing assembly mechanism provided by the present invention; Figure 5 A schematic diagram of an end cap tooling structure for an EGR housing assembly mechanism provided by the present invention; Figure 6 A schematic diagram of the outer shell lateral movement mechanism of an EGR housing assembly mechanism provided by the present invention; Figure 7 This is a schematic diagram of the EGR product structure.

[0017] Legend: 1. Equipment platform; 2. Positioning fixture; 21. First comb tooth positioning block; 22. Second comb tooth positioning block; 23. Positioning block lifting cylinder; 24. Flat tube clamping cylinder; 25. Clamping component; 26. Spacing groove; 27. Bottom bracket; 28. Pressure sensor; 3. End cap housing fixture; 31. Support plate a; 32. Flat tube guide strip a; 33. Housing straightening cylinder; 34. Straightening seat; 4. End cap fixture; 41. Support plate b; 42. Flat tube guide strip b; 5. Outer shell transverse movement mechanism; 51. Support frame; 52. Front and rear telescopic cylinders; 53. Displacement plate; 54. Guide rail; 55. Slider; 56. Left and right transverse movement cylinders; 57. Lifting cylinders; 58. Gripper cylinders; 6. Lead screw drive mechanism; 61. Upper lead screw drive mechanism; 62. Lower lead screw drive mechanism; 7. Connecting plate; 8. Control Panel. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] To facilitate understanding of the present invention, a more comprehensive description of the invention will be provided below with reference to relevant embodiments. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be more thorough and complete.

[0020] It should be noted that when an element is said to be fixed to another element, it can be directly on the other element or there may be an intervening element. When an element is said to be connected to another element, it can be directly connected to the other element or there may be an intervening element. The terms vertical, horizontal, left, right and similar expressions used in this document are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The terminology used herein includes and / or includes any and all combinations of one or more of the associated listed items.

[0022] Example like Figure 1-4As shown, the present invention provides a technical solution: an EGR housing assembly mechanism, including an equipment platform 1, a positioning fixture 2, an end cap housing fixture 3, an end cap fixture 4 and a housing lateral movement mechanism 5 are installed on the top of the equipment platform 1, the positioning fixture 2 is located at the center of the top of the equipment platform 1, the end cap housing fixture 3 and the end cap fixture 4 are respectively located on both sides of the positioning fixture 2, the housing lateral movement mechanism 5 is located on the back and above the positioning fixture 2, the end cap fixture 4 and the housing lateral movement mechanism 5 are driven laterally to move closer to / away from the positioning fixture 2 by a screw drive mechanism 6, and a control panel 8 is installed on the front of the equipment platform 1; The positioning fixture 2 includes a first comb tooth positioning block 21, a second comb tooth positioning block 22, a positioning block lifting cylinder 23, a flat tube clamping cylinder 24, and a clamping element 25. The first comb tooth positioning block 21 is close to the end cover housing fixture 3, while the second comb tooth positioning block 22 is close to the end cover fixture 4. The positioning block lifting cylinder 23 has two cylinders respectively installed at the bottom of the first comb tooth positioning block 21 and the second comb tooth positioning block 22. The flat tube clamping cylinder 24 has four cylinders symmetrically arranged on the front and rear sides of the first comb tooth positioning block 21, and the output end faces the first comb tooth positioning block 21 to install the clamping element 25. The end cap housing fixture 3 includes a support plate a31, a flat tube guide bar a32, and a housing straightening cylinder 33. The flat tube guide bar a32 is mounted on the support plate a31, and the housing straightening cylinder 33 is mounted below the flat tube guide bar a32, with its output end facing the flat tube guide bar a32 and equipped with a straightening seat 34. The end cap fixture 4 includes a support plate b41 and a flat tube guide bar b42. The flat tube guide bar b42 is mounted on the support plate b41. When the housing straightening cylinder 33 operates and rises, it drives the straightening seat 34 to abut against the housing for straightening, ensuring the stability and correctness of the housing during the assembly process.

[0023] It should be added that the flat tube guide strips a32 and b42 are smaller than the flat tube. The flat tube guide strips a32 and b42 are provided with guide protrusions facing the end of the flat tube, which are used to abut against the inside of the flat tube. The flat tube guide strips a32 and b42 are respectively connected to the left end cap and the right end cap. A shell is fitted around the flat tube guide strip a32.

[0024] The outer casing transverse movement mechanism 5 includes a support frame 51, front and rear telescopic cylinders 52, a displacement plate 53, a guide rail 54, a slider 55, left and right transverse cylinders 56, a lifting cylinder 57, and a gripper cylinder 58. Two sets of front and rear telescopic cylinders 52 are installed on both sides of the front of the support frame 51 near the top. The output end of the front and rear telescopic cylinders 52 faces the top of the positioning fixture 2 and is mounted on the displacement plate 53. The guide rail 54 is installed on the displacement plate 53 and arranged laterally. The slider 55 is slidably connected to the guide rail 54. By extending and retracting the left and right transverse cylinders 56 installed on one side of the displacement plate 53, the slider 55 slides laterally on the guide rail 54. The lifting cylinder 57 is installed on the slider 55 and its output end faces the bottom. The gripper cylinder 58 is installed at the bottom of the lifting cylinder 57. The outer casing transverse movement mechanism 5 realizes multi-axis motion control through the front and rear telescopic cylinders 52, the left and right transverse cylinders 56, and the lifting cylinder 57, and can flexibly move the outer casing to a designated position.

[0025] Example 2, as Figure 1-7 As shown, both the first comb tooth positioning block 21 and the second comb tooth positioning block 22 are provided with a spacer groove 26 separated by the comb teeth, and the spacer grooves on the first comb tooth positioning block 21 and the second comb tooth positioning block 22 correspond to each other. The comb teeth on the first comb tooth positioning block 21 are arranged on the side near the end cover housing tooling 3. The spacer groove 26 of the first comb tooth positioning block 21 is used for placing flat tubes and placing connecting pieces between the flat tubes.

[0026] The above embodiments need to be further supplemented as follows: Figure 2 The number of flat tube guide strips a32 and b42 is the same as the number of spacer slots 26. The second comb positioning block 22 and the first comb positioning block 21 also serve to guide the flat tube guide strips a32 and b42 to abut against the flat tube and into the flat tube.

[0027] like Figure 3 As mentioned above, a pressure sensor 28 is installed on the first comb positioning block 21 to detect the overall weight of the flat tube and connecting piece, thus avoiding the possibility of missing parts.

[0028] like Figure 4 and Figure 5 The lead screw drive mechanism 6 is provided with two sets, including an upper lead screw drive mechanism 61 and a lower lead screw drive mechanism 62. The lower lead screw drive mechanism 62 drives the upper lead screw drive mechanism 61 to approach the positioning fixture 2. The upper lead screw drive mechanism 61 drives the support plate a31 and the support plate b41 to drive the flat tube guide strip a32 and the flat tube guide strip b42 to abut against the flat tube located above the first comb tooth positioning block 21.

[0029] The upper lead screw drive mechanism 61 and the lower lead screw drive mechanism 62 are both composed of a drive motor, a lead screw and a slide rail. The upper lead screw drive mechanism 61 and the lower lead screw drive mechanism 62 are connected by a connecting plate 7. The upper lead screw drive mechanism 61 is connected to the support plate a31 and the support plate b41 by the connecting plate 7.

[0030] The flat tube clamping cylinder 24 is mounted on the bottom bracket 27, and the length of the clamping member 25 is the same as the lifting height of the positioning block lifting cylinder 23 of the first comb tooth positioning block 21, so that the clamping member can clamp flat tubes of different heights through the extension and retraction of the flat tube clamping cylinder 24.

[0031] like Figure 7 The EGR consists of a shell, a flat tube, a connecting piece, and left and right end caps.

[0032] The workflow of this invention is as follows: Adjust each component on the equipment platform 1 (positioning fixture 2, end cap housing fixture 3, end cap fixture 4, housing transverse movement mechanism 5, etc.) to the initial position to ensure that each component is in a ready-to-work state. Place the flat tubes one by one into the interval slots 26 of the first comb tooth positioning block 21, and place connecting pieces between the flat tubes. Since the interval slots on the first comb tooth positioning block 21 and the second comb tooth positioning block 22 correspond, the flat tubes and connecting pieces can be accurately aligned in the horizontal direction. The pressure sensor 28 on the first comb tooth positioning block 21 will detect the overall weight of the flat tubes and connecting pieces in real time to ensure that the placed materials meet the requirements. At the same time, the left end cap and the right end cap are respectively connected to the flat tube guide strip a32 and the flat tube guide strip b42, and the housing is sleeved on the flat tube guide strip a32. The flat tube clamping cylinder 24 is activated, causing its output end to push the clamping member 25 closer to the first comb tooth positioning block 21, clamping and fixing the flat tube and connecting piece. This prevents the flat tube and connecting piece from shifting during subsequent assembly. The end cap housing fixture 3 and end cap fixture 4 are driven closer to the positioning fixture 2 by the lead screw drive mechanism 6 (lower lead screw drive mechanism 62). The upper lead screw drive mechanism 61 drives the support plate a31 and support plate b41, causing the flat tube guide strip a32 and flat tube guide strip b42 to abut against the two ends of the flat tube located above the first comb tooth positioning block 21 and the second comb tooth positioning block 22, respectively. The protrusion structure on the flat tube guide strip a32 and flat tube guide strip b42 will abut against the inside of the flat tube, ensuring that the flat tube is securely clamped during assembly. For stability, the front and rear telescopic cylinders 52 in the outer shell transverse movement mechanism 5 are activated, causing the displacement plate 53 to move upwards towards the positioning fixture 2. The left and right transverse cylinders 56 drive the slider 55 to slide laterally on the guide rail 54, adjusting the position of the gripper cylinder 58. When the gripper cylinder 58 moves to the appropriate position, the lifting cylinder 57 is activated to lower it, and the gripper cylinder 58 grabs the shell. At the same time, the left and right transverse cylinders 56 drive the slider 55 to slide laterally on the guide rail 54, moving the shell and the left end cap to the periphery of the flat tube. At this time, the flat tube guide strip a32 and the flat tube guide strip b42 are driven by the screw drive mechanism 6 (upper screw drive mechanism 61) to extend into the flat tube, so that the end cap abuts against the flat tube, completing the assembly of the shell, the flat tube, and the connecting piece.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An EGR housing assembly mechanism, comprising an equipment platform (1), characterized in that: The top of the equipment platform (1) is equipped with a positioning fixture (2), an end cap housing fixture (3), an end cap fixture (4), and a housing lateral movement mechanism (5). The positioning fixture (2) is located at the center of the top of the equipment platform (1). The end cap housing fixture (3) and the end cap fixture (4) are located on both sides of the positioning fixture (2). The housing lateral movement mechanism (5) is located on the back and above the positioning fixture (2). The end cap fixture (4) and the housing lateral movement mechanism (5) are driven laterally to be closer to / away from the positioning fixture (2) by a screw drive mechanism (6). The positioning fixture (2) includes a first comb tooth positioning block (21), a second comb tooth positioning block (22), a positioning block lifting cylinder (23), a flat tube clamping cylinder (24), and a clamping element (25). The first comb tooth positioning block (21) is close to the end cap housing fixture (3), while the second comb tooth positioning block (22) is close to the end cap fixture (4). The positioning block lifting cylinder (23) has two cylinders respectively installed at the bottom of the first comb tooth positioning block (21) and the second comb tooth positioning block (22). The flat tube clamping cylinder (24) has four cylinders symmetrically arranged on the front and rear sides of the first comb tooth positioning block (21), and the output end is facing the first comb tooth positioning block (21) to install the clamping element (25). The end cap housing fixture (3) includes a support plate a (31), a flat tube guide bar a (32), and a housing straightening cylinder (33). The flat tube guide bar a (32) is installed on the support plate a (31), and the housing straightening cylinder (33) is installed below the flat tube guide bar a (32). The output end faces the flat tube guide bar a (32) and is equipped with a straightening seat (34). The end cap fixture (4) includes a support plate b (41) and a flat tube guide strip b (42), the flat tube guide strip b (42) being mounted on the support plate b (41); The outer shell transverse movement mechanism (5) includes a support frame (51), front and rear telescopic cylinders (52), a displacement plate (53), a guide rail (54), a slider (55), a left and right transverse cylinder (56), a lifting cylinder (57), and a gripper cylinder (58). The front and rear telescopic cylinders (52) are installed on both sides of the front of the support frame (51) near the top. The output end of the front and rear telescopic cylinders (52) faces the top of the positioning fixture (2) and is equipped with a displacement plate (53). The guide rail (54) is installed on the displacement plate (53) and arranged laterally. The slider (55) is slidably connected to the guide rail (54). By extending and retracting the left and right transverse cylinders (56) installed on one side of the displacement plate (53), the slider (55) slides laterally on the guide rail (54). The lifting cylinder (57) is installed on the slider (55) and its output end faces the bottom. A gripper cylinder (58) is installed at the bottom of the lifting cylinder (57). The first comb tooth positioning block (21) and the second comb tooth positioning block (22) are both provided with a spacer groove (26) separated by the comb teeth, and the spacer grooves on the first comb tooth positioning block (21) and the second comb tooth positioning block (22) correspond to each other. The comb teeth on the first comb tooth positioning block (21) are arranged on the side near the end cover outer shell tooling (3). The spacer groove (26) of the first comb tooth positioning block (21) is used for the placement of flat tubes and connecting pieces are placed between the flat tubes. The flat tube guide strip a (32) and the flat tube guide strip b (42) are respectively connected to the left end cap and the right end cap, and a shell is sleeved on the periphery of the flat tube guide strip a (32).

2. The EGR housing assembly mechanism according to claim 1, characterized in that: The number of flat tube guide strips a (32) and b (42) is the same as the number of spacer slots (26).

3. The EGR housing assembly mechanism according to claim 1, characterized in that: A pressure sensor (28) is installed on the first comb positioning block (21) to detect the overall weight of the flat tube and the connecting piece.

4. The EGR housing assembly mechanism according to claim 1, characterized in that: The lead screw drive mechanism (6) is provided in two sets, including an upper lead screw drive mechanism (61) and a lower lead screw drive mechanism (62). The lower lead screw drive mechanism (62) drives the upper lead screw drive mechanism (61) to approach the positioning fixture (2). The upper lead screw drive mechanism (61) drives the support plate a (31) and the support plate b (41) to drive the flat tube guide strip a (32) and the flat tube guide strip b (42) to abut against the flat tube located above the first comb tooth positioning block (21).

5. An EGR housing assembly mechanism according to claim 4, characterized in that: The upper lead screw drive mechanism (61) and the lower lead screw drive mechanism (62) are both composed of a drive motor, a lead screw and a slide rail. The upper lead screw drive mechanism (61) and the lower lead screw drive mechanism (62) are connected by a connecting plate (7). The upper lead screw drive mechanism (61) is connected to the support plate a (31) and the support plate b (41) by the connecting plate (7).

6. The EGR housing assembly mechanism according to claim 1, characterized in that: The flat tube clamping cylinder (24) is mounted on the bottom bracket (27), and the length of the clamping member (25) is the same as the lifting height of the positioning block lifting cylinder (23) of the first comb tooth positioning block (21).

7. An EGR housing assembly mechanism according to claim 5, characterized in that: The flat tube guide strip a (32) and the flat tube guide strip b (42) are provided with guide protrusions facing the flat tube end, which are used to abut against the inside of the flat tube.

8. The EGR housing assembly mechanism according to claim 1, characterized in that: The control panel (8) is mounted on the front of the equipment platform (1).

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