Part assembling and welding device without solid reference and process method
By using a part welding device without physical reference on the armored assault equipment technical support vehicle, and using the threaded hole on the outside of the actuator bracket as a reference, combined with positioning bolts and long limit bolts, the accurate positioning and welding of parts are achieved, which solves the problem that the center of the inner hole cannot be measured quickly and accurately, and improves production efficiency and product consistency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-28
- Publication Date
- 2026-04-10
AI Technical Summary
The inability to quickly and accurately measure and position the center of the inner hole of the parts on the actuator bracket of the armored assault equipment technical support vehicle makes it difficult to guarantee the welding quality, affecting production efficiency and product consistency.
The part assembly and welding device without physical reference includes a long limit bolt, a positioning device body one and a positioning device body two. The positioning structure with preset size is formed by precision machining on a CNC machine tool. Using the threaded hole on the outside of the actuator bracket as a reference, the positioning bolt and the long limit bolt are combined to achieve accurate positioning and assembly welding of the parts.
It improves the assembly accuracy and consistency of parts on the actuator bracket, simplifies the operation process, reduces human error, and ensures welding quality and production efficiency.
Smart Images
Figure CN121820952A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of assembly welding process, and particularly relates to a part assembly welding device and process method without a physical reference. BACKGROUND
[0002] The armored assault equipment technical support vehicle is indispensable technical support equipment for implementing powerful and rapid support, emergency support, front-line support and accompanying support, battlefield rescue and repair, and plays a crucial role in modern war. The armored assault equipment technical support vehicle has the ability to rescue equipment in the conditions of sinking, falling into a ditch and overturning; has the ability to tow war-damaged and faulty equipment; has the ability to carry out repair operations on war-damaged and faulty equipment; has the ability to lift large parts such as a turret, a power cabin and a vertically launched missile; has a certain obstacle removal ability; has the ability to accept superior commands and cooperate with new tanks, support tanks and combat support vehicles; and can carry repair and detection equipment to realize battlefield repair capability.
[0003] The mechatronic actuator assembly (such as Figure 2 ) on the armored assault equipment technical support vehicle is composed of a rocker arm assembly, an output gear ring and end cover assembly, an adjustment and installation end cover assembly, a planetary gear set and planetary carrier assembly, an actuator support assembly, a motor rotor assembly, a motor end cover assembly and a liquid cooling port assembly. The function of the mechatronic actuator is to generate a driving torque to realize active suspension control.
[0004] The actuator support assembly (such as Figure 3 ) is a key component for fixing the mechatronic actuator as a whole to the vehicle body. The actuator support assembly is composed of a mounting seat, a fixed gear ring, a wear-resistant washer, a bearing, a bearing lock nut, a cooling liquid sleeve, a motor stator and a water guide block (109). Therefore, the combination of parts on the actuator support is particularly important.
[0005] The armored assault equipment technical support vehicle works on a road surface with large fluctuations and in a poor state, and the movement form of the running gear is required to be higher. The actuator support is to ensure the running posture of the load wheel and avoid the movement amplitude of the load wheel being too large to cause fatigue or damage of the torsion shaft. Therefore, the actuator support needs to withstand a large instantaneous impact force, and at the same time, the combination position of the parts on the actuator support generally has a certain spatial angle and distance with the corresponding load wheel due to the influence of the vehicle posture. It is difficult to directly measure. In production, the consistency of the size at this place is not high, and it is not easy to find out. Sometimes it is exposed during final assembly or even running test, causing great quality and progress risk. Therefore, the assembly and welding quality of the parts on the actuator support need to be directly ensured when the vehicle body is assembled and welded to ensure the positioning accuracy and consistency and the reliable running of the vehicle.
[0006] There are parts inside the vehicle body on the actuator to execute the large hole center line of the actuator as the positioning reference, because the actuator is a casting and there is no face or edge that can be used as a reference inside the vehicle body, and there is also no bolt hole that can be positioned inside the vehicle body, so in actual production, there are problems such as inconvenient operation of the reference, limited operation posture of the staff, magnified measurement error, etc., causing the size fluctuation of the parts positioned on the actuator support to be large, and because it is a space size, it is not easy to measure, which can cause the size to be out of tolerance and not be discovered in time, which restricts the improvement of production efficiency, cannot guarantee product consistency, and has problems such as difficulty in rechecking. SUMMARY
[0007] The technical problem to be solved by the present application is that the inner hole center of the hole type part cannot be quickly and accurately measured and positioned.
[0008] To solve the above technical problems, the specific technical solutions of the present application are as follows: A part assembly welding device without a physical reference, comprising a long limiting bolt 1, a positioning device main body one 2, a positioning bolt one 3, a positioning device main body two 4, and a positioning bolt two 10; the positioning device main body one 2 is a welded structural part, composed of an actuator positioning plate 5 and an extended sleeve 6, the actuator positioning plate 5 and the extended sleeve 6 are combined and welded by scribing, and then the whole is finished by a numerical control machine tool, the actuator positioning plate 5 is processed with bolt positioning holes matched with the threaded holes of the actuator support; the positioning device main body two 4 is a welded structural part, composed of a part positioning plate 7, a large extended sleeve 8, and a small extended sleeve 9, the three are combined and welded by scribing, and then the whole is finished by a numerical control machine tool, the part positioning plate 7 is processed with bolt positioning holes and positioning grooves required by the assembled parts; the positioning bolt one 3 is a special hexagonal bolt with a positioning surface, the specification is M30x2x40, and the number is two, which is matched with the threaded holes of the actuator support; the long limiting bolt 1 is a special hexagonal bolt, the number is two, and the effective length is not less than the sum of the thickness of the actuator support, the positioning hole thickness of the positioning device main body one 2, and the positioning hole thickness of the positioning device main body two 4; the positioning bolt two 10 is a special hexagonal bolt with a positioning surface, the number and specification are matched with the threaded holes of the parts to be assembled.
[0009] Further, the main body of the part positioning plate 7 is a 10mm thick special-shaped steel plate, the outer dimension is 320mmx300mm, and the positioning grooves are designed according to the profiling and drawing size conversion of the parts to be assembled.
[0010] Further, the bolt positioning holes on the positioning device main body one 2 correspond one-to-one with the two threaded holes uniformly distributed above the large hole of the actuator support; the center positioning size of the bolt positioning holes and the positioning grooves on the positioning device main body two 4 is determined according to the drawing size conversion.
[0011] Further, the effective length of the long limiting bolt 1 is 130mm, and a fastening nut 11 with a specification of M24 is provided.
[0012] Further, the components of the positioning device body one 2 and the positioning device body two 4 are welded and fixed after being positioned by scribing, and then the positioning structure with a preset size is formed by numerical control machine tool finishing.
[0013] The application also provides a no-entity-reference part assembly welding process method based on the above device, which comprises an assembly positioning mode, and the specific steps are as follows: Step 1.1, place the vehicle body with the actuator support of the to-be-assembled parts on a general platform or a special placing rack, and ensure that the vehicle body is stable, without shaking and translation; Step 1.2, fasten and connect the positioning device body one 2 and the corresponding M30x2 threaded hole on the actuator support through two positioning bolts 3; Step 1.3, place the to-be-assembled accessory parts on the positioning device body two 4, make the extended sleeve end face tightly contact with the to-be-assembled parts, and fasten them with the positioning bolt 10; Step 1.4, sequentially connect the positioning device body one 2, the actuator support and the positioning device body two 4 through the long limiting bolt 1, fasten them with the nut 11, and ensure that the contact surfaces are completely in contact; Step 1.5, spot weld the installed to-be-assembled parts; Step 1.6, place the remaining to-be-assembled parts into the limiting clamping groove of the positioning device body two 4, and spot weld them after completely contacting; Step 1.7, weld the connecting welds of all the assembled parts and the actuator support; Step 1.8, after the welds are cooled, disassemble the tooling and clean the welds.
[0014] Further, it also comprises an inspection mode, and the specific steps are as follows: Step 2.1, place the vehicle body with the actuator support of the assembled parts on a general platform or a special placing rack, and ensure that the vehicle body is stable, without shaking and translation; Step 2.2, fasten and connect the positioning device body one 2 and the corresponding M30x2 threaded hole on the actuator support through two positioning bolts 3; Step 2.3, sequentially connect the positioning device body one 2, the actuator support and the positioning device body two 4 through the long limiting bolt 1, fasten them with the nut 11, and ensure that the contact surfaces are completely in contact; Step 2.4, check whether the positioning bolt 10 can be smoothly screwed into and out of the corresponding threaded hole on the assembled parts; Step 2.5, check whether the assembled parts are completely in contact with the limiting clamping groove of the positioning device body two 4; Step 2.6: If the parts can be successfully reassembled, the assembly dimensions of the parts on the actuator bracket are deemed to be qualified; if the parts cannot be successfully reassembled, the assembled parts should be planed off, ground clean, and re-welded according to the assembly positioning mode.
[0015] Furthermore, the parts to be assembled include one or more of the following: mounting base, fixed gear ring, wear-resistant washer, bearing, bearing lock nut, coolant sleeve, motor stator, and water guide block.
[0016] This invention offers the following advantages: Addressing the problem of the inability to quickly and accurately measure and position the inner hole center of perforated parts, it primarily employs indirect measurement methods. It proposes a method based on the virtual-to-real conversion of the hole center to determine the assembly position of parts on actuator brackets, overcoming the challenges posed by dimensional tolerance zones in hole-shaft fits and the operational difficulties arising from the structure and position of the actuator bracket. This results in a set of reference conversion devices and processes for parts on actuator brackets, used for the positioning and welding of such parts assembled on brackets within vehicle bodies. This improves production efficiency and dimensional consistency. Attached Figure Description
[0017] Figure 1 A cross-sectional view of the outer side of the vehicle body of the positioning device for assembling parts on the actuator bracket; Figure 2 This is a schematic diagram of an electric actuator assembly; Figure 3 Schematic diagram of actuator bracket; Figure 4 Schematic diagram of the main body of the positioning device; Figure 5 Schematic diagram of the main body of the positioning device (2); Figure 6 Schematic diagram of the mounting of the component assembly positioning device on the actuator bracket inside and outside the vehicle body. Explanation of markings in the diagram: 1-Long limit bolt; 2-Positioning device body one; 3-Positioning bolt one; 4-Positioning device body two; 5-Actuator positioning plate; 6-Extended sleeve; 7-Part positioning plate; 8-Large extended sleeve; 9-Small extended sleeve; 10-Positioning bolt two. Detailed Implementation
[0018] To better understand the purpose, structure, and function of this invention, the invention will be described in further detail below with reference to the accompanying drawings.
[0019] The purpose of this embodiment is to: solve the problem of large dimensional fluctuations when assembling parts on the actuator bracket of the armored assault equipment technical support vehicle; solve the problem that the spatial dimensions of the parts on the actuator bracket cannot be measured when assembling, requiring benchmark conversion and making direct positioning impossible; and solve the problem of the difficulty in inspecting the spatial dimensions after the parts on the actuator bracket are welded together.
[0020] likeFigure 1 The present application proposes a positioning device for the combination of parts on the actuator support, which is positioned by the upper outer threaded hole of the actuator support. It is composed of a long limiting bolt 1, a positioning device body 2, a positioning bolt 3, a positioning device body 4, etc. As shown in Figure 1 , Figure 2 The positioning bolt 3 connects the actuator support and the device body 2 together, and the long limiting bolt 1 connects the actuator support, the device body 2 and the device body 4 together according to the fixed inclination angle and positioning size.
[0021] The structure of the long limiting bolt 1 is a special hexagonal bolt, and there are two of them. The effective length is about 130mm, which is longer than the sum of the thickness of the actuator support and the thickness of the positioning hole in the positioning device body 2 and the thickness of the positioning hole in the positioning device body 4.
[0022] The positioning device body 2 is a welded structural member, which is mainly composed of two parts, i.e. an actuator positioning plate 5 and a lengthened sleeve 6, etc. As shown in Figure 4 After the two parts are combined according to the size, they are finished by the whole numerical control machine tool. Among them, the actuator positioning plate 5 and the lengthened sleeve 6 are fixed together by the scribing and combined welding method, and then the bolt positioning hole is processed according to the converted size.
[0023] The structure of the positioning bolt 3 is a special hexagonal bolt with a positioning surface, and its thread size is M30x2x40, which matches the threaded hole of the actuator support of the vehicle body. There are two of them.
[0024] The positioning device body 4 is a welded structural member, and the main body is a special-shaped steel plate with a thickness of 10mm, and the outer dimension is about 320mmx300mm. It is mainly composed of three parts, i.e. a part positioning plate 7, a lengthened sleeve 8 and a lengthened sleeve 9, etc. As shown in Figure 5 After the three parts are combined according to the size, they are finished by the whole numerical control machine tool. Among them, the part positioning plate 7, the lengthened sleeve 8 and the lengthened sleeve 9 are fixed together by the scribing and combined welding method, and then the bolt positioning hole and the positioning clamping groove required for the combined parts are processed according to the converted size.
[0025] The structure of the positioning bolt 10 is a special hexagonal bolt with a positioning surface, and the number and specification are determined according to the matching requirements of the threaded hole of the combined parts. There are multiple of them. As shown in Figure 6 .
[0026] The use method is as follows: Combination positioning mode 1. Place the vehicle body with the parts to be combined on the actuator support stably. It can be placed on a general platform or using a placing frame and other devices to ensure that the vehicle body is stable and does not shake or translate during subsequent operations.
[0027] 2. Use two positioning bolts 3 to fasten the positioning device body 2 with the M30x2 threaded hole on the corresponding actuator support.
[0028] 3. Place the assembled parts to be combined on the positioning device body 2, fasten with positioning bolt 2 10, and pay attention to the direction when placing the assembled parts. The end face of the extension sleeve should be tightly attached to the assembled parts.
[0029] 4. Use long limiting bolt 1 to connect positioning device body 1 2 with actuator support and positioning device body 4, fasten with nut 11, and the contact surface of each two parts should be completely attached.
[0030] 5. Point the assembled parts that have been installed.
[0031] 6. Place the remaining assembled parts in the limiting slot of the positioning device body 4, and point after completely attaching.
[0032] 7. Weld all the connecting welds of the assembled parts and the actuator support on the vehicle body.
[0033] 8. After welding and cooling, disassemble the tooling and clean the welds.
[0034] Inspection mode 1. Place the vehicle body of the parts to be combined on the actuator support stably. It can be placed on a universal platform or use a placing device, etc. to ensure that the vehicle body is stable and does not shake or translate during subsequent operations.
[0035] 2. Use two positioning bolts 3 to fasten the positioning device body 2 with the M30x2 threaded hole on the corresponding actuator support.
[0036] 3. Use long limiting bolt 1 to connect positioning device body 1 2 with actuator support and positioning device body 4, fasten with nut 11, and the contact surface of each two parts should be completely attached.
[0037] 4. Check whether the positioning bolt 2 10 can be smoothly screwed into and out of the corresponding threaded hole on the tooling and the assembled parts.
[0038] 5. Check whether the remaining assembled parts are completely attached to the limiting slot of the positioning device body 4.
[0039] 6. If it can be successfully reassembled, it means that the size of the parts combined on the actuator support is correct.
[0040] 7. If it cannot be successfully reassembled, the assembled parts need to be planed off, polished around, and then recombined and welded according to the combination positioning mode.
[0041] From the above technical solution can be seen, the present application has the following remarkable features: (1) The positioning device body structure is claimed, which is composed of a specific shape of a flat plate, a special-shaped thick steel plate and a lengthened sleeve, and is integrally finished. The plurality of light holes, the lengthened sleeve and the limiting slot on the positioning device body one 2 and the positioning device body two 4 are finished by a numerical control machine tool. The size and the relative position are converted from design drawings. The above functions are integrated, and the specific structure is suitable for the assembly welding of the parts on the actuator support.
[0042] The specific feature is that the actuator support part assembly device is divided into two parts of the inside and outside of the vehicle body. The outside part of the vehicle body is mainly composed of two light holes with the same thread hole position around the large hole of the actuator support, specifically corresponding to the two thread holes above the large hole of the actuator support. The inside part of the vehicle body is a special-shaped thick steel plate structure matched with the shape and positioning of the parts to be assembled on the actuator support. The positioning size of the clamping slot and the center of the plurality of light holes of the special-shaped thick steel plate structure is converted from the size of the drawing.
[0043] (2) The positioning method and structure using the positioning bolt and the long limiting bolt to reliably position the actuator support based on the actuator support with a certain adjustment range are claimed. The specific feature is that the positioning bolt is used to connect and fasten the positioning device body and the actuator support, and the long limiting bolt is used to pass through the assembly device and the actuator support, and can be fastened by an M24 nut to ensure that the reference on the actuator support and the positioning of the assembly device remain consistent or reciprocal.
[0044] (3) The structure of the clamping slot on the positioning device body two 4 is claimed, which mainly has the feature of being integrally machined to remove a part, and the removed part is the limiting slot of the part to be assembled, which is converted from the profile and drawing size of the part to be assembled.
[0045] The assembly welding positioning device and process method of the actuator support parts provided in the embodiment have the following beneficial effects: (1) The problem of large size fluctuation of manual assembly when the parts on the actuator support of the full-armor assault equipment technical support vehicle are assembled is solved. The product consistency is ensured by the tooling.
[0046] (2) The problem of needing reference conversion and being unable to directly position when the parts on the actuator support are assembled is solved.
[0047] (3) The problem of large error and great difficulty in space size inspection after the assembly welding of the parts on the actuator support is solved.
[0048] (4) It is convenient for employees to operate, does not require a dedicated assembly welding platform, has low requirements for the operation site, is simple to operate, and has high reliability.
[0049] (5) According to the product technical requirements, the relative positions of the bolt positioning holes on the positioning device main body 1 and the combined parts on the positioning device main body 2 can be changed, and the application can be extended to other parts of the actuator support part combination positioning. High expansion.
[0050] Although the embodiments of the present application are described in conjunction with the drawings, several modifications and improvements can be made by those skilled in the art without departing from the principles of the present application, which should also be considered as belonging to the protection scope of the present application.
Claims
1. A component welding device without a physical reference, characterized in that, The device includes a long limiting bolt (1), a positioning device body one (2), a positioning bolt one (3), a positioning device body two (4), and a positioning bolt two (10). The positioning device body one (2) is a welded structural component, consisting of an actuator positioning plate (5) and an extended sleeve (6). The actuator positioning plate (5) and the extended sleeve (6) are assembled and welded by scribing and then precision machined by a CNC machine tool. The actuator positioning plate (5) has bolt positioning holes that match the threaded holes of the actuator bracket. The positioning device body two (4) is a welded structural component, consisting of a part positioning plate (7), a large extended sleeve (8), and a small extended sleeve (9). The three components are assembled by scribing. After welding, the whole is precision machined by CNC machine tool. The part positioning plate (7) is machined with bolt positioning holes and positioning slots required for the assembly parts. The positioning bolt one (3) is a special hexagonal bolt with positioning surface, with a specification of M30×2×40, and there are two of them, which are compatible with the threaded holes of the actuator bracket. The long limit bolt (1) is a special hexagonal bolt, with two of them, and the effective length is not less than the sum of the thickness of the actuator bracket, the thickness of the positioning hole of the positioning device body one (2), and the thickness of the positioning hole of the positioning device body two (4). The positioning bolt two (10) is a special hexagonal bolt with positioning surface, and the quantity and specification are compatible with the threaded holes of the parts to be assembled.
2. The component welding apparatus without a physical reference as described in claim 1, characterized in that, The main body of the part positioning plate (7) is a 10mm thick special-shaped steel plate with an outer dimension of 320mm×300mm. Its positioning slot is designed based on the contour of the part to be assembled and the drawing dimensions.
3. The component welding apparatus without a physical reference according to claim 2, characterized in that, The bolt positioning holes on the main body of the positioning device (2) correspond one-to-one with the two threaded holes evenly distributed above the large hole of the actuator bracket; the center positioning dimensions of the bolt positioning holes and positioning slots on the main body of the positioning device (4) are determined by conversion based on the dimensions in the drawings.
4. The component welding apparatus without a physical reference according to claim 1, characterized in that, The effective length of the long limiting bolt (1) is 130mm, and it is equipped with a fastening nut (11) of specification M24.
5. The component welding apparatus without a physical reference according to claim 1, characterized in that, The components of the positioning device body one (2) and the positioning device body two (4) are all fixed by welding after being marked and positioned, and then precision machined by CNC machine tool to form a positioning structure of preset size.
6. A welding process for non-physical reference parts based on the apparatus described in any one of claims 1-5, characterized in that, Including combined positioning modes, the specific steps are as follows: Step 1.1: Place the vehicle body with the actuator bracket containing the parts to be assembled onto a general platform or a special mounting rack, ensuring that the vehicle body is stable, without shaking or shifting. Step 1.2: Secure the main body (2) of the positioning device to the corresponding M30×2 threaded hole on the actuator bracket using two positioning bolts (3); Step 1.3: Place the attachment parts to be assembled on the main body of the positioning device (4), so that the end face of the extended sleeve is in close contact with the parts to be assembled, and tighten it with the positioning bolts (10); Step 1.4: Connect the positioning device body 1 (2), the actuator bracket and the positioning device body 2 (4) in sequence with the long limit bolt (1), and tighten with nuts (11) to ensure that all contact surfaces are fully fitted. Step 1.5: Secure the installed parts to be assembled; Step 1.6: Place the remaining parts to be assembled into the limiting slot of the main body of the positioning device (4), and fix them in place after they are fully fitted. Step 1.7: Weld all the connecting welds between the assembled parts and the actuator bracket; Step 1.8: After the weld has cooled, remove the tooling and clean the weld.
7. The welding process for parts without a physical reference as described in claim 6, characterized in that, It also includes an inspection mode, the specific steps of which are as follows: Step 2.1: Place the vehicle body with the assembled parts and actuator bracket on a general platform or special mounting rack, ensuring that the vehicle body is stable, without shaking or translating. Step 2.2: Secure the main body (2) of the positioning device to the corresponding M30×2 threaded hole on the actuator bracket using two positioning bolts (3); Step 2.3: Connect the positioning device body 1 (2), the actuator bracket and the positioning device body 2 (4) in sequence with the long limit bolt (1), and tighten with nuts (11) to ensure that all contact surfaces are fully fitted. Step 2.4: Use the positioning bolt (10) to check whether it can be smoothly screwed into and out of the corresponding threaded holes on the tooling and the assembled parts; Step 2.5: Check whether the assembled parts are fully fitted with the limiting slot of the positioning device body 2 (4); Step 2.6: If the parts can be successfully reassembled, the assembly dimensions of the parts on the actuator bracket are deemed to be qualified; if the parts cannot be successfully reassembled, the assembled parts should be planed off, ground clean, and re-welded according to the assembly positioning mode.
8. The welding process for parts without a physical reference as described in claim 6 or 7, characterized in that, The parts to be assembled include one or more of the following: mounting base, fixed gear ring, wear-resistant washer, bearing, bearing lock nut, coolant jacket, motor stator, and water guide block.