Outer contour positioning device for gas-collecting hood assembly of annular radiator

Abstract

The utility model discloses an outer contour positioning device for a gas-collecting hood assembly of an annular radiator, which comprises a cylindrical surface-shaped positioning panel, two flitch plate contour line grooves for the contour line positions of a left flitch plate and a right flitch plate and gas-collecting hood contour line grooves for the contour line positions of a left gas-collecting hood and a right gas-collecting hood are formed in the positioning panel, and the heat pipe nozzle positioning holes and the limiting grooves are used for the positions of the left heat pipe nozzle positioning hole and the right heat pipe nozzle positioning hole. The positioning device is used together with a welding inspection fixture (including a welding inspection mandrel), so that efficient and accurate positioning of the gas-collecting hood assembly can be realized.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of radiator machining, especially a control device for high-efficiency and accurate positioning of an aviation annular radiator gas-collecting cover assembly. BACKGROUND

[0002] The annular radiator is mainly used for cooling high-temperature and high-pressure gas discharged from a machine body, is assembled in the machine body, and has a whole barrel rotary structure with circular front and rear end faces. The gas-collecting cover assembly is composed of a left sticking plate, a right sticking plate, a left gas-collecting cover, a right gas-collecting cover, and a left (right) heat pipe nozzle. The gas-collecting cover assembly is a port part for input and output of high-temperature and high-pressure gas. The assembly and welding sequence of the gas-collecting cover assembly is as follows:

[0003] First, the left sticking plate and the right sticking plate are positioned and welded on the barrel.

[0004] Second, the left and right heat pipe nozzles are positioned and welded on the barrel.

[0005] Third, the left and right gas-collecting covers are respectively positioned and welded on the left and right sticking plates and the left and right corrugated plates. The assembly and positioning relationship among the above three sequences of parts are interrelated and relatively complex.

[0006] The assembly relationship and dimensions of each part need to meet the following requirements:

[0007] 1) The height of the center hole of the left heat pipe nozzle from the lower end face (reference face) of the barrel (the position indicated by the letter B in the figure) meets H1, and the height of the center hole of the right heat pipe nozzle from the lower end face (reference face) of the barrel meets H2. Figure 4

[0008] 2) The left and right sticking plates need to be aligned with the corrugated plates on each side.

[0009] 3) The outer contour of the left and right gas-collecting covers should be within 2-5 mm of the outer contour of the left and right sticking plates; at the same time, the difference value of the overlap amount of the left and right gas-collecting covers with the corrugated plates on each side should not exceed 4 mm.

[0010] When each part is assembled and welded, the reference line of each part needs to be found, and even multiple reference lines are needed to fix the contour when assembling the special-shaped parts. The reference line of each part for assembly and welding is measured by a caliper, which has great operation difficulty (curved surface measurement), large error (the mutual relationship of the reference lines often leads to measurement errors), and low labor efficiency (a lot of time is spent on correction and calibration), ultimately leading to frequent assembly deviations of the product during main machine assembly, causing quality problems of the actual product.

[0011] ​To solve the assembly precision problem of the annular radiator gas collecting cover assembly, improve the accuracy of the mutual positional relationship between the parts of the gas collecting cover assembly, reduce the labor intensity and human quality accidents, the application provides a control device for efficient and accurate positioning of the gas collecting cover assembly. SUMMARY

[0012] In view of the problems described in the background art, the utility model aims at providing an annular radiator gas collecting cover assembly outer contour positioning device, namely, designing and manufacturing a positioning line drawing device with an integrated mechanical structure, which is used together with a welding inspection fixture (including a welding inspection mandrel) according to the production process requirements, and can realize efficient and accurate positioning of the gas collecting cover assembly.

[0013] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0014] An annular radiator gas collecting cover assembly outer contour positioning device comprises:

[0015] A positioning panel, which is a cylindrical surface with a central angle less than 90°, and the curvature of the cylindrical surface is consistent with the curvature of the annular radiator, the radius of the cylindrical surface is greater than the radius of the annular radiator, the central angle of the cylindrical surface is greater than the central angle between the left and right heat pipe nozzles of the annular radiator, and the inner concave side surface of the positioning panel forms a fitting surface with the annular radiator;

[0016] Limiting grooves, which are two and are respectively arranged on the inner concave side surface of the positioning panel corresponding to the two ends of the circumferential direction of the cylindrical surface, and are parallel to the generatrix direction of the cylindrical surface;

[0017] Heat pipe nozzle positioning holes, which are two and are respectively arranged on the positioning panel, the central angle between the two heat pipe nozzle positioning holes is equal to the central angle between the left and right heat pipe nozzles of the annular radiator, each of the two heat pipe nozzle positioning holes extends out a sleeve along the axis of the heat pipe nozzle positioning hole and in the direction of the outer convex side of the positioning panel, and the distance between the two heat pipe nozzle positioning holes along the axis direction of the positioning panel is equal to the difference between the distance from the left heat pipe nozzle to the lower end surface of the annular radiator cylinder and the distance from the right heat pipe nozzle to the lower end surface of the annular radiator cylinder, namely H1-H2;

[0018] A paste plate contour line groove, which is two and is arranged on the positioning panel, and the shape is consistent with the contour line of the left and right paste plates of the annular radiator, and the spatial positional relationship between the two paste plate contour line grooves satisfies the positional relationship between the left and right paste plates of the annular radiator along the normal direction of the annular radiator cylinder and towards the contour projection line obtained by projecting the left and right paste plates of the annular radiator along the normal direction of the annular radiator cylinder and towards the cylindrical surface coaxial with the annular radiator cylinder and with a radius equal to the radius of the corresponding cylindrical surface of the positioning panel;

[0019] The two profile line grooves are arranged on the positioning panel and are consistent in shape with the profile lines of the left and right gas cover of the annular radiator, and the spatial positional relationship between the two profile line grooves meets the positional relationship between the profile projection lines obtained by projecting the left and right gas cover of the annular radiator along the normal direction of the cylinder body of the annular radiator towards the cylindrical surface coaxial with the cylinder body of the annular radiator and having a radius equal to the radius of the corresponding cylindrical surface of the positioning panel.

[0020] Further, the two limiting grooves are respectively overlapped with the left and right corrugated plates, and the difference value of the overlapping amount is not more than 4mm.

[0021] Further, the part between the two profile line grooves of the positioning panel is hollowed out, and the hollowed-out area is fused and communicated with the two profile line grooves as a slot, and the spatial positional relationship between the two side wall profile lines corresponding to the two profile line grooves in the slot meets the positional relationship between the profile projection lines obtained by projecting the left and right plates of the annular radiator along the normal direction of the cylinder body of the annular radiator towards the cylindrical surface coaxial with the cylinder body of the annular radiator and having a radius equal to the radius of the corresponding cylindrical surface of the positioning panel.

[0022] Further, the annular radiator gas cover assembly outer contour positioning device further comprises a handle, the handle is arranged on the outer convex side surface of the positioning panel, and the handle avoids the positions of the heat pipe nozzle positioning hole, the plate profile line groove and the gas cover profile line groove.

[0023] The utility model mainly is used for guaranteeing the assembly efficiency and assembly precision of the gas cover assembly on the cylinder (cylindrical curved surface) during the annular radiator manufacturing. Because of the particularity of the annular radiator structure, the main structure is the large diameter cylinder welding structure, and there is large tolerance accumulation in the processing process, which influences the subsequent content processing precision. At the same time, the assembly position of the gas cover and the plate is related to the subsequent nozzle (product installation interface) processing, and the assembly precision requirement is higher. If the position processing scheme is not properly selected, it will directly influence the product overall installation coordination and interchangeability, and cannot guarantee the consistency and reliability of the product installation interface quality. Therefore, in order to ensure that the annular radiator gas cover assembly installation and processing precision meet the design assembly requirement, and improve the product efficiency, the utility model designs the positioning control device to guarantee the correctness and efficiency of the positioning reference of the annular radiator gas cover assembly, and finally meets the assembly requirement of the annular radiator on the machine.

[0024] The utility model discloses realized the efficient accurate positioning of the fume hood assembly, including the datum position of left and right heat pipe nozzle opposite lower end surface, the datum position of left and right pasting board opposite circular cylinder, the datum position of left and right fume hood opposite left and right pasting board and the requirement of lap joint amount with corrugated board. After the positioning device is applied on the spot, the worker draws line (datum) time from about 1h reduces to about 5min of now for each product, and product assembly first-time qualification rate promotes 60%, greatly reduces the labor intensity of worker, reduces the situation of reconditioning even scrapping because of unqualified assembly (welding piece reconditioning difficulty is high), effectively shortens the production cycle, and good economic benefit is obtained.

[0025] Compared with the prior art, the utility model has the following characteristics:

[0026] 1, positioning device design structure is simple, and the appearance size is smaller, and the structure is integral type structure, and is integrated on a positioning panel, does not need to assemble and disassemble, and the integrity is better, and is convenient to store and use.

[0027] 2, the assembly datum of each part of fume hood assembly on the cylinder is identified and controlled by the positioning device, and can be used unlimited times, and the difference and instability of part installation datum are solved.

[0028] 3, the positioning device can quickly and accurately identify part assembly position, and the line drawing operation is simple and efficient, and the measurement difficulty and measurement error (measuring on the circular arc surface) of the operator are greatly reduced.

[0029] 4, through the investigation of the positioning line drawing of multiple products on the spot, the part assembly datum line is determined by using the device, and the worker positioning line drawing precision is high, the efficiency is high, the stability is good, the part assembly qualification rate is greatly increased, and the host installation requirement is met. DRAWINGS

[0030] Figure 1 It is the left view of the outer contour positioning device.

[0031] Figure 2 It is the top view of the outer contour positioning device. Figure 1

[0032] Figure 3 It is the top view of the outer contour positioning device. Figure 1

[0033] Figure 4 It is the assembly drawing of the positioning device on the cylinder.

[0034] Figure 5 It is the enlarged view of A-A section in the outer contour positioning device. Figure 4

[0035] Figure 6 It is the axonometric drawing of the outer contour positioning device.

[0036] ​​​Figure 7 A magnified view of the recessed side of the positioning panel of the outer contour positioning device;

[0037] In the diagram, 1-limiting groove, 2-heat pipe nozzle positioning hole, 3-patterning plate contour groove, 4-gas collection hood contour groove, 5-welding inspection mandrel, 6-overlap amount, 7-fitting surface, 8-handle. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. However, it should not be construed that the scope of the subject matter of the present invention is limited to the following embodiments. Any modifications, substitutions and alterations made based on ordinary technical knowledge and conventional means in the art without departing from the above-described technical concept of the present invention are included within the scope of the present invention.

[0039] like Figures 1-7 As shown, the outer contour positioning device of the annular radiator shroud assembly designed in this utility model is an integrated mechanical structure with no non-rigid connection parts. The designed functional parts include two plate contour grooves 3 for the left and right plate contour lines, a shroud contour groove 4 for the left and right shroud contour lines, a heat pipe nozzle positioning hole 2 for the left and right heat pipe nozzle positioning hole positions, and a limiting groove 1. The limiting groove 1, the heat pipe nozzle positioning hole 2, the plate contour groove 3, and the shroud contour groove 4 are all integrated on a cylindrical positioning panel. The operator draws marking lines on the product according to the contour lines of the positioning device (without manual measurement). These marking lines are the reference lines for subsequent actual part assembly.

[0040] Specifically, the outer contour positioning device of the annular radiator shroud assembly includes a positioning panel, a limiting groove 1, a heat pipe nozzle positioning hole 2, a panel contour groove 3, a shroud contour groove 4, and a handle 8.

[0041] The positioning panel is a cylindrical surface with a central angle of less than 90°, and the curvature of the cylindrical surface is consistent with that of the annular heat sink. The radius of the cylindrical surface is greater than that of the annular heat sink, and the central angle of the cylindrical surface is greater than the central angle between the left and right heat pipe nozzles on the annular heat sink. The concave side surface of the positioning panel forms a contact surface 7 with the annular heat sink. There are two limiting grooves 1, which are respectively opened on the concave side surface of the positioning panel at both ends corresponding to the circumferential direction of the cylindrical surface (e.g., Figure 7, one limiting groove 1 at the same end is divided into two parts by the reinforcing rib, the two parts are in the same plane, the limiting groove 1 is parallel to the generatrix direction of the cylindrical surface, and the limiting groove 1 includes the lap surface and the limiting surface; two heat pipe nozzle positioning holes 2 are provided through the limiting surface plate, the central angle between the two heat pipe nozzle positioning holes 2 is equal to the central angle between the left heat pipe nozzle and the right heat pipe nozzle on the annular radiator, and each of the two heat pipe nozzle positioning holes 2 extends out of a sleeve (used for cooperating with the welding inspection mandrel 5, and the two welding inspection mandrels 5 are respectively inserted into the sleeves outside the two heat pipe nozzle positioning holes 2) along the axis of the two heat pipe nozzle positioning holes 2 and in the direction of the limiting surface plate; the distance between the two heat pipe nozzle positioning holes 2 along the axis direction of the limiting surface plate is equal to the difference between the distance from the left heat pipe nozzle to the lower end surface of the annular radiator cylinder and the distance from the right heat pipe nozzle to the lower end surface of the annular radiator cylinder, that is, H1-H2; two paste plate contour line grooves 3 are provided through the limiting surface plate, and the shapes are consistent with the contour lines of the left paste plate and the right paste plate on the annular radiator; in order to reduce the weight, the part between the two paste plate contour line grooves 3 on the limiting surface plate is hollowed out, and the hollowed-out area is communicated with the two paste plate contour line grooves 3 as a slot, and the spatial position relationship of the two side wall contour lines corresponding to the two paste plate contour line grooves 3 in the slot satisfies the position relationship between the contour projection lines of the left paste plate and the right paste plate on the annular radiator along the normal direction of the annular radiator cylinder and projected onto the cylindrical surface coaxial with the annular radiator cylinder and having a radius equal to the corresponding cylindrical surface radius of the limiting surface plate; two cover contour line grooves 4 are provided through the limiting surface plate, and the shapes are consistent with the contour lines of the left cover and the right cover on the annular radiator; the spatial position relationship between the two cover contour line grooves 4 satisfies the position relationship between the contour projection lines of the left cover and the right cover on the annular radiator along the normal direction of the annular radiator cylinder and projected onto the cylindrical surface coaxial with the annular radiator cylinder and having a radius equal to the corresponding cylindrical surface radius of the limiting surface plate; the handle 8 is arranged on the side surface of the limiting surface plate protruding outward, and avoids the positions of the heat pipe nozzle positioning hole 2, the paste plate contour line groove 3 and the cover contour line groove 4.

[0042] The steps of using the annular radiator cover assembly outer contour positioning device are as follows:

[0043] Step 1, cooperate the positioning device with the welding inspection fixture and the cylinder: first, cooperate the heat pipe nozzle positioning hole 2 of the positioning device with the welding inspection fixture, then rotate and adjust the position of the cylinder, so that the fitting surface 7 of the positioning device is fitted with the cylinder, the lap surface of the limiting groove 1 is basically fitted and fixed with the left and right corrugated plates of the cylinder, and it is ensured that the lap amount 6 of the positioning device with the left and right corrugated plates does not differ by more than 4 mm (guaranteed by the limiting groove 1 of the positioning device), see Figure 4 and Figure 5 , Figure 5First, assume the positioning device is perfectly centered on the cylinder (symmetrical on the left and right, with equal overlap on both sides). Then, there's a gap of approximately 2mm between the limiting surface of the limiting groove 1 and the left and right corrugated plates, allowing for movement. Since the positions are symmetrical, the overlap between the positioning device and the left and right corrugated plates is the same, with zero difference. Now, suppose the positioning device shifts to the left or right. Considering the extreme case, the positioning device shifts completely to the center... Figure 5 When the device shifts to the left, due to the presence of the limiting groove 1, it can only shift a maximum of 2mm to the left before it comes into contact with the corrugated plate (the same logic applies to the right). At this point, the gap between the limiting groove 1 (left side) and the left corrugated plate is 0mm, and the gap between the limiting groove 1 (right side) and the right corrugated plate becomes 2mm + 2mm = 4mm. Therefore, the difference in overlap between the positioning device and the left and right corrugated plates is 4mm. This is the largest difference between the two overlap amounts 6; in other cases, the difference in overlap amount 6 is less than 4mm. Thus, regardless of whether the positioning device moves left or right, the difference in overlap amount 6 is less than or equal to 4mm. Furthermore, the design of the limiting groove 1 ensures that the difference in overlap amount between the positioning device and the left and right corrugated plates is less than or equal to 4mm. After the positioning device is fixed, the operator will draw a line on the corrugated plate along the edge of the positioning device (drawing the line at the overlap). After the positioning device is removed, when the left and right gas collection hoods are installed and positioned, one side of the part will be aligned with the line drawn on the corrugated plate. Since the overlap between the positioning device and the left and right corrugated plates is less than or equal to 4mm when the line is drawn, the difference in overlap between the left and right gas collection hoods and the corrugated plates when they are installed according to the line will also be less than 4mm.

[0044] Step 2: Insert the welding inspection mandrel 5 of the welding inspection fixture into the sleeve of the heat pipe nozzle positioning hole 2 of the positioning device, lock and fix it, and use an oil-based pen to mark the hole. Figure 4 Draw lines and marks along the outline grooves 3 and 4 of the gas collecting hood. Then, use clips (e.g., C-clamps) to fix the cylinder and positioning device. Disassemble and weld the inspection mandrel 5, and use an oil-based pen to mark the lines. Figure 4 A line is drawn on the inner ring of the positioning hole 2 of the heat pipe nozzle, and this line serves as the assembly reference line for the actual parts. Since the positional relationship of the heat pipe nozzle positioning hole 2, the mounting plate contour groove 3, and the gas collector contour groove 4 on the positioning device is obtained by projecting the left and right heat pipe nozzles, the left and right mounting plates, and the left and right gas collectors onto the positioning panel, their spatial positional relationship conforms to the technical requirements after drawing lines according to these lines. At this point, it is only necessary to connect the positioning device to the annular radiator using the welding inspection mandrel 5 to achieve a reference connection between the positioning device and the annular radiator, thereby satisfying the assembly relationship and dimensional requirements of 1) to 3) in the background art.

[0045] Step 3, disassemble the positioning device, when the left and right pads are assembled and welded on the cylinder, the actual part profile substantially coincides with the line mark of the left and right pads; when the left and right heat pipe nozzles are assembled and welded on the cylinder, the actual part center point substantially coincides with the center point of the line mark; when the left and right gas collectors are assembled and welded on the cylinder, the actual part profile substantially coincides with the line mark; when a large coincidence error occurs during assembly, the actual part needs to be repaired according to the line mark.

[0046] The above merely describes a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An annular heat sink plenum assembly outer profile positioning device, characterized by, It comprises: A positioning panel, which is a cylindrical surface with a central angle less than 90°, and the curvature of the cylindrical surface is consistent with that of the annular radiator, the radius of the cylindrical surface is greater than that of the annular radiator, and the central angle of the cylindrical surface is greater than that between the left and right heat pipe nozzles of the annular radiator. The concave side surface of the positioning panel forms a fitting surface (7) with the annular radiator; Two limiting grooves (1) are respectively arranged on the concave side surface of the positioning panel corresponding to the two ends of the cylindrical surface in the circumferential direction, and the limiting grooves (1) are parallel to the generatrix direction of the cylindrical surface; Two heat pipe nozzle positioning holes (2) are arranged on the positioning panel, and the central angle between the two heat pipe nozzle positioning holes (2) is equal to the central angle between the left and right heat pipe nozzles of the annular radiator. Each of the two heat pipe nozzle positioning holes (2) extends a sleeve along the axis of the two heat pipe nozzle positioning holes (2) and in the direction of the positioning panel protruding outward. The distance between the two heat pipe nozzle positioning holes (2) along the axis of the positioning panel is equal to the difference between the distance from the left heat pipe nozzle to the lower end surface of the annular radiator cylinder and the distance from the right heat pipe nozzle to the lower end surface of the annular radiator cylinder. Two paste plate contour line grooves (3) are arranged on the positioning panel, and the shapes of the two paste plate contour line grooves (3) are consistent with the contour lines of the left and right paste plates on the annular radiator. The spatial positional relationship between the two paste plate contour line grooves (3) satisfies the positional relationship between the contour projection lines of the left and right paste plates on the annular radiator along the normal direction of the annular radiator cylinder towards the cylindrical surface coaxial with the annular radiator cylinder and having a radius equal to the radius of the corresponding cylindrical surface of the positioning panel. Two gas cover contour line grooves (4) are arranged on the positioning panel, and the shapes of the two gas cover contour line grooves (4) are consistent with the contour lines of the left and right gas covers on the annular radiator. The spatial positional relationship between the two gas cover contour line grooves (4) satisfies the positional relationship between the contour projection lines of the left and right gas covers on the annular radiator along the normal direction of the annular radiator cylinder towards the cylindrical surface coaxial with the annular radiator cylinder and having a radius equal to the radius of the corresponding cylindrical surface of the positioning panel.

2. An outer contour positioning device for a ring-shaped radiator manifold assembly according to claim 1, characterized in that: The two limiting grooves (1) respectively overlap the left and right corrugated plates, and the difference in the overlapping amount (6) is not more than 4mm.

3. An outer contour positioning device for a ring-shaped radiator manifold assembly according to claim 1, characterized in that: The part between the two paste plate contour line grooves (3) on the positioning panel is hollowed out, and the hollowed-out area is fused and communicated with the two paste plate contour line grooves (3) as a slot. The spatial positional relationship between the two side wall contour lines corresponding to the two paste plate contour line grooves (3) in the slot satisfies the positional relationship between the contour projection lines of the left and right paste plates on the annular radiator along the normal direction of the annular radiator cylinder towards the cylindrical surface coaxial with the annular radiator cylinder and having a radius equal to the radius of the corresponding cylindrical surface of the positioning panel.

4. An outer contour positioning device for a ring-shaped radiator manifold assembly according to claim 1, characterized in that: It also includes a handle (8) arranged on the protruding side surface of the positioning panel, and the handle (8) avoids the positions of the heat pipe nozzle positioning holes (2), the paste plate contour line grooves (3) and the gas cover contour line grooves (4).

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