Auxiliary tool and assembly method for a weighing mechanism mounting seat

Abstract

The application discloses an auxiliary tool for a load measuring mechanism mounting seat and an assembling method, and belongs to the technical field of railway vehicles. The auxiliary tool comprises an assembling main plate, a first blocking piece and a second blocking piece. The assembling main plate is used for fixing and supporting the load measuring mechanism mounting seat. The first blocking piece is connected to the assembling main plate and is used for being positioned in a groove-shaped structure at the bottom of the vehicle. The second blocking piece is connected to the assembling main plate and is used for abutting against a fixed structure at the bottom of the vehicle. The fixed structure is located outside the groove-shaped structure. The assembling method comprises the following steps: fixing the load measuring mechanism mounting seat on the assembling main plate; positioning the auxiliary tool at the bottom of the vehicle; fixing and assembling the load measuring mechanism mounting seat on the vehicle; and removing the auxiliary tool from the load measuring mechanism mounting seat. The application can accurately position the mounting seat of the load measuring mechanism, and can fix and assemble the mounting seat of the load measuring mechanism at one time, so that repeated disassembly and assembly are not needed, the quality of the completed installation is obviously improved, the normal use of the empty and loaded vehicle automatic adjusting device can be ensured, and thus the driving safety of the vehicle is ensured.

Description

Technical Field

[0001] This application belongs to the field of railway vehicle technology, and in particular relates to an auxiliary tooling and assembly method for a weighing mechanism mounting base, which can be widely used in the maintenance and assembly of railway vehicles, and involves mechanical manufacturing and installation. Background Technology

[0002] The automatic empty / load adjustment device for railway vehicles is a crucial component of the braking system. This device automatically and steplessly adjusts the brake cylinder pressure within a certain range based on the vehicle's load, significantly reducing the braking rate variation between empty and loaded states, thus effectively improving braking performance. The weighing mechanism is a vital part of this automatic adjustment device. Railway vehicles are generally equipped with weighing mechanisms, which are fixed and installed using a mounting bracket. During railway vehicle operation, the mounting bracket may deform or have damaged mounting holes, potentially causing damage or malfunction of the weighing mechanism. In such cases, a new mounting bracket should be promptly replaced to ensure the normal operation of the automatic empty / load adjustment device and thus guarantee vehicle safety.

[0003] The existing weighing mechanism is installed using a mounting bracket, which is placed on the center beam at the bottom of the vehicle. However, this method suffers from low assembly precision and inefficiency, resulting in wasted resources and costs, wasted time, and serious impacts on quality and safety. Summary of the Invention

[0004] This application aims to solve, at least to some extent, the technical problems of precise positioning and installation of weighing mechanisms. To this end, this application provides an auxiliary tooling and assembly method for a weighing mechanism mounting base, which can accurately position the mounting base of the weighing mechanism and install and fix it in one go without repeated disassembly and assembly, significantly improving the quality of installation and ensuring the normal use of the automatic adjustment device for empty and loaded vehicles, thereby ensuring the driving safety of the vehicle.

[0005] In a first aspect, embodiments of this application provide an auxiliary tooling for a weighing mechanism mounting base, used to assist in the assembly of the weighing mechanism mounting base on a vehicle, the auxiliary tooling comprising:

[0006] Assemble the mainboard for fixing and supporting the mounting base of the weighing mechanism;

[0007] The first component, connected to the main assembly board, is used for positioning in the groove-shaped structure at the bottom of the vehicle;

[0008] The second component, connected to the main assembly board, is used to abut against the fixing structure at the bottom of the vehicle. The fixing structure is located on the outside of the groove-shaped structure.

[0009] In an optional embodiment, at least two first stops are provided, and multiple first stops are arranged opposite to each other, so that the ends of multiple first stops can respectively abut against the relative positions of the inner wall of the groove structure at the bottom of the vehicle.

[0010] In an optional embodiment, the first stop is bent, with one end of the first stop connected to the surface of the mounting motherboard, and the other end of the first stop bent toward the groove structure and able to abut against the inner wall of the groove structure.

[0011] In an optional embodiment, the assembly motherboard has a first plate surface and a second plate surface opposite to each other, a first stop is connected to the first plate surface, and the assembly motherboard can be fixed to the weighing mechanism mounting base through the first plate surface.

[0012] In an optional embodiment, a third stop is also included, which is disposed on the first surface of the assembly motherboard. When the weighing mechanism mounting base is installed, the third stop abuts against the weighing mechanism mounting base, so that the assembly motherboard is positioned on the weighing mechanism mounting base through the third stop.

[0013] In an optional embodiment, at least two second stops are provided, with one end of the plurality of second stops connected to the surface of the mounting motherboard and the other end of the plurality of second stops extending out of the edge of the mounting motherboard.

[0014] In an optional embodiment, the assembly motherboard is provided with a locking element for fixing the assembly motherboard to the weighing mechanism mounting base.

[0015] In an alternative implementation, the corners of the mounting motherboard are rounded.

[0016] Secondly, embodiments of this application provide an assembly method for a weighing mechanism mounting base, the assembly method comprising:

[0017] Provide the aforementioned auxiliary tooling;

[0018] Fix the mounting base of the weighing mechanism to be assembled onto the assembly main board of the auxiliary tooling;

[0019] Position the auxiliary tooling with the fixed mounting base of the weighing mechanism at the bottom of the vehicle;

[0020] The weighing mechanism mounting base is fixedly assembled onto the vehicle;

[0021] Remove the auxiliary tooling from the mounting base of the weighing mechanism.

[0022] In an optional embodiment, the auxiliary tooling with the mounting base of the weighing mechanism is positioned at the bottom of the vehicle, specifically including:

[0023] The main board is placed against the bottom of the vehicle, the first stop is placed against the groove-shaped structure at the bottom of the vehicle, and the second stop is placed against the fixing structure at the bottom of the vehicle.

[0024] As can be seen from the above technical solution, the beneficial effects of this application are as follows:

[0025] 1. This application uses a fixed connection between the assembly main board and the weighing mechanism mounting base to integrate the weighing mechanism mounting base and auxiliary tooling. Since the weighing mechanism mounting base is not easily positioned and installed directly, the problem is transformed into positioning and installing the auxiliary tooling. A first stop can be used to position the assembly main board within a grooved structure at the bottom of the vehicle, thus determining the position of the assembly main board relative to the grooved structure and restricting the mounting base's freedom of movement in both directions relative to the grooved structure. A second stop can be used to abut against a fixed structure at the bottom of the vehicle, determining the position of the assembly main board relative to another reference point at the bottom of the vehicle and restricting the mounting base's freedom of movement in another direction. By directly or indirectly abutting the assembly main board against the bottom of the vehicle, the mounting base is made parallel to and positioned relative to the bottom of the vehicle, thus restricting the mounting base's freedom of movement in the vertical direction. The position of the weighing mechanism mounting base can be determined using the auxiliary tooling. This allows for precise positioning of the weighing mechanism mounting base and one-time installation and fixation, eliminating the need for repeated disassembly and assembly, significantly improving the installation quality, ensuring the normal operation of the automatic empty / loaded vehicle adjustment device, and thus guaranteeing vehicle driving safety.

[0026] 2. This application fixes the weighing mechanism mounting base to the assembly main board to form an integral unit. By positioning the auxiliary tooling, the precise position of the weighing mechanism mounting base is determined. Then, the weighing mechanism mounting base is fixed to the bottom of the vehicle, thus fixing the weighing mechanism to the vehicle. The auxiliary work is removed to complete the assembly. The method is simple and easy to operate, and it realizes the rapid installation and precise positioning of the weighing mechanism mounting base. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other embodiments and drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A top view of an embodiment of the auxiliary tooling for the weighing mechanism mounting base of the present invention is shown;

[0029] Figure 2 A side view of an embodiment of the auxiliary tooling for the weighing mechanism mounting base of the present invention is shown;

[0030] Figure 3 A top view of an embodiment of the auxiliary tooling for the weighing mechanism mounting base of the present invention is shown;

[0031] Figure 4A side view of an embodiment of the auxiliary tooling for the weighing mechanism mounting base of the present invention is shown;

[0032] Figure 5 A schematic diagram showing an embodiment of the auxiliary tooling for the weighing mechanism mounting base of the present invention installed on the bottom of a vehicle is provided.

[0033] Figure 6 A side view of an embodiment of the auxiliary tooling for the weighing mechanism mounting base of the present invention, installed on a middle beam, is shown.

[0034] Figure 7 The diagram shows an embodiment of the assembly of the auxiliary tooling of the weighing mechanism mounting base of the present invention with the weighing mechanism mounting base.

[0035] Reference numerals: 100, tooling; 110, assembly motherboard; 111, assembly hole; 112, locking element; 120, first stop; 130, second stop; 140, third stop; 200, groove structure; 300, fixing structure; 400, mounting base. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0037] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0038] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0039] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0040] This application is described below with reference to the accompanying drawings and specific embodiments:

[0041] Please refer to Figure 1 According to the first aspect of this application, an auxiliary tooling for a weighing mechanism mounting base is provided to assist in the assembly of the weighing mechanism mounting base 400 on a vehicle. When installing the weighing mechanism, the weighing mechanism mounting base 400 is first fixed to the auxiliary tooling 100, and then the auxiliary tooling 100 is used to fix the weighing mechanism mounting base 400 to the bottom of the vehicle. The vehicle can be a train or other vehicle structures. The groove-shaped structure 200 at the bottom of the vehicle is a groove at the center beam of the train's bottom, and the fixing structure 300 at the bottom of the vehicle is a center plate next to the center beam of the train's bottom. The groove-shaped structure 200 and the fixing structure 300 can also be other vehicle structures, as long as they form a groove and are fixed to the vehicle. The auxiliary tooling 100 includes: an assembly main board 110, a first stop 120, and a second stop 130; the assembly main board... 110 is plate-shaped and made of 3mm thick steel plate. The mounting plate 110 is used to fix and support the weighing mechanism mounting base 400. The weighing mechanism mounting base 400 and the mounting plate 110 are detachably connected, which can fix them firmly and easily. For example, both the weighing mechanism mounting base 400 and the mounting plate 110 are provided with corresponding threaded holes, and bolts or screws can be used to fix the weighing mechanism mounting base 400 and the mounting plate 110. In an optional embodiment, the weighing mechanism mounting base 400 and the mounting plate 110 can adopt a snap-fit, plug-in, or other structural form that is convenient for connection and disassembly. For example, conventional snap-fit ​​with a notch or bend shape can be used on the edge of the mounting plate 110, and the edge of the mounting plate 110 can be connected to the weighing mechanism mounting base 400 through the snap-fit.

[0042] Please refer to Figure 2The first stop 120 is connected to the mounting main board 110 by welding, bolting, or other connection methods. The first stop 120 is block-shaped, plate-shaped, or strip-shaped, or may adopt other structural forms. The first stop 120 is used for positioning in the groove-shaped structure 200 at the bottom of the vehicle. If the first stop 120 adopts a block-shaped structure, the width of the first stop 120 is consistent with the width of the inner wall of the groove of the center beam, so that the first stop 120 can be locked in the groove-shaped structure 200 of the center beam and be stably fixed. The second stop 130 is connected to the mounting main board 110. The second stop 130 is fixed to the mounting main board 110 and cannot move relative to it. It is connected by welding, bolting or other methods. The second stop 130 is used to abut against the outer side of the fixing structure 300 at the bottom of the vehicle. The fixing structure 300 is located outside the groove structure 200. The fixing structure 300 is the core plate at the bottom of the vehicle. The second stop 130 can be block-shaped, plate-shaped or strip-shaped, or other structural forms, as long as it can ensure that the second stop 130 abuts against the core plate and the relative position of the mounting main board 110 and the core plate can be determined.

[0043] The existing technology does not provide tools to assist in the installation of the weighing mechanism mounting base 400. During the installation of the existing weighing mechanism mounting base 400, the assembly personnel rely entirely on manual marking. Since it is installed in the groove of the middle beam at the bottom of the vehicle, the lighting is dim, and the work must be done from below. Manual marking is inaccurate, and it is difficult to ensure the horizontal and verticality. The installation position is inaccurate. After marking, the assembly personnel hold the weighing mechanism mounting base 400 according to the marked position and then weld it in place. Therefore, it is easy to cause the weighing mechanism to deviate and tilt, affecting the normal use of the automatic adjustment device of empty and loaded vehicles, and it is also inconvenient to operate, causing operational safety problems.

[0044] This application uses a mounting motherboard 110 to be fixedly connected to a weighing mechanism mounting base 400, forming a single unit with the auxiliary tooling 100. Since the weighing mechanism mounting base 400 is not easily positioned and installed directly, the problem is transformed into positioning and installing the auxiliary tooling 100. The first stop 120 can be positioned within the grooved structure 200 at the bottom of the vehicle, thus determining the position of the mounting motherboard 110 relative to the grooved structure 200 and restricting the degree of freedom of the mounting base 400 in both lateral directions relative to the grooved structure 200. The second stop 130 abuts against the fixed structure 300 at the bottom of the vehicle, allowing the mounting motherboard 110 to be properly positioned relative to the vehicle. The position of another reference point at the bottom is determined, thereby restricting the degree of freedom of the mounting base 400 in another direction. By directly or indirectly abutting the assembly motherboard 110 against the bottom of the vehicle, the mounting base 400 is made parallel to the bottom of the vehicle and its position is determined, thereby restricting the degree of freedom of the mounting base 400 in the vertical direction. The position of the weighing mechanism mounting base 400 can be determined by the auxiliary tooling 100. This allows for precise positioning of the weighing mechanism mounting base 400 and one-time installation and fixation of the weighing mechanism mounting base 400 without repeated disassembly and assembly, significantly improving the quality of installation and ensuring the normal use of the empty and loaded vehicle automatic adjustment device, thereby ensuring the driving safety of the vehicle.

[0045] Please refer to Figure 3 In an optional embodiment, at least two first stops 120 are provided. Multiple stops can provide multiple limiting points, enabling more accurate positioning of the mounting mainboard 110. The multiple first stops 120 are arranged opposite each other, allowing their ends to abut against the relative positions of the inner walls of the groove-shaped structure 200 at the bottom of the vehicle. For example, if two first stops 120 are used, each first stop 120 is rod-shaped or plate-shaped, fixed to the mounting mainboard 110, with its end resting on the mounting mainboard. The side of 110 extends outward and faces both sides of the mounting motherboard 110. The setting of the first stop 120 makes the end of the assembled weighing mechanism mounting seat 400 108mm away from the inner wall of the groove of the middle beam, or other distances. When positioning, the mounting motherboard 110 fixes the weighing mechanism mounting seat 400 to the bottom of the vehicle. At the same time, the two first stop 120s extend into the groove structure 200, and the ends of the first stop 120 are exactly in the relative position abutting against the groove. The mounting motherboard 110 will not have a positioning offset in the direction of the two sides of the middle beam.

[0046] Please refer to Figure 4In an optional embodiment, the first stop 120 is bent and has two opposite ends. One end of the first stop 120 is connected to the surface of the mounting main board 110, and the other end of the first stop 120 is bent toward the groove structure 200. The first stop 120 is elongated and bent near the mounting main board 110. One end of the first stop 120 is welded and fixed to the mounting main board 110, and the other end of the first stop 120 is bent toward both sides of the mounting main board 110. When the weighing mechanism mounting base 400 is positioned by the mounting main board 110, the other end of the first stop 120 can abut against the inner wall of the groove structure 200. Specifically, at the position opposite to the inner wall of the groove in the middle beam, part of the end of the first stop 120 abuts against the inner wall of the groove, and another part of the end of the first stop 120 abuts against the opposite inner wall of the groove.

[0047] Please refer to Figure 5 and Figure 6 In an optional embodiment, the mounting motherboard 110 has a first plate and a second plate, i.e., the front and back of the mounting motherboard 110. The first stop 120 is connected to the first plate. The mounting motherboard 110 can be fixed to the weighing mechanism mounting seat 400 through the first plate. That is, the connection between the first plate and the weighing mechanism mounting seat 400 is on the same surface. The edge of the weighing mechanism mounting seat 400 can abut against the angle between the first stop 120 and the mounting motherboard 110 on the first plate. This facilitates more precise positioning of the weighing mechanism mounting seat 400. The first plate faces upward when the weighing mechanism mounting seat 400 is installed. Thus, the weighing mechanism mounting seat 400 is supported on the bottom of the vehicle by the first plate of the mounting motherboard 110 and is positioned by the first stop 120. In an optional embodiment, the mounting motherboard 110 is square in shape, and each corner of the mounting motherboard 110 is rounded. The four corners of the mounting motherboard 110 are rounded with a radius of 10mm to avoid scratches to personnel and facilitate assembly. The mounting motherboard 110 can also adopt other shapes, such as circles, rhombuses, etc.

[0048] Please refer to Figure 7In an optional embodiment, a third stop 140 is also included. The third stop 140 is in the shape of a block, plate, or strip. The third stop 140 is disposed on the first plate surface of the mounting main board 110. The third stop 140 is fixed to the mounting main board 110 by welding, bolting, screw connection, or other means. For example, if the third stop 140 is a strip structure and is welded to the first plate surface of the mounting main board 110, the third stop 140 is located closer to both sides of the mounting main board 110 relative to the connection between the first stop 120 and the mounting main board 110. The edge of the third stop 140 serves as a reference. When installing the weighing mechanism mounting base 400, the third stop 140 abuts against the weighing mechanism mounting base 400, that is, the edge of the weighing mechanism mounting base 400 is limited by the third stop 140. In this way, the mounting main board 110 is positioned on the weighing mechanism mounting base 400 by the third stop 140.

[0049] In an optional embodiment, at least two second stops 130 are provided. The length of the second stops 130 is determined according to the position of the core plate. After positioning, the distance between the assembly main plate 110 and the center of the core plate is 344mm. One end of the multiple second stops 130 is connected to the surface of the assembly main plate 110, and the other end of the multiple second stops 130 extends out of the edge of the assembly main plate 110. If the second stops 130 adopts a strip structure, one end of the second stops 130 is welded to the second surface of the assembly main plate 110, and the other end of the second stops 130 can contact and abut against the outer edge of the core plate. The length or position setting of the multiple second stops 130 can enable the multiple second stops 130 to abut against the core plate at the same time. For example, two second stops 130 are of equal length and are symmetrically arranged with respect to the center beam during positioning.

[0050] In an optional embodiment, the mounting main board 110 is provided with a locking member 112. The locking member 112 is a bolt, screw or other connecting part. The mounting main board 110 is provided with four mounting holes 111 with a diameter of 13mm, which are symmetrically arranged on the mounting main board 110. Other numbers can also be provided. The mounting holes 111 can be through holes or threaded holes. The weighing mechanism mounting base 400 is also provided with mating holes. The mounting holes 111 are positioned exactly to match. The locking member 112 passes through the mounting holes 111 and the mating holes to fix the mounting main board 110 and the weighing mechanism mounting base 400. This allows the two plate-shaped structures of the weighing mechanism mounting base 400 to be symmetrically arranged, and the two plate-shaped structures are spaced 240mm apart.

[0051] A second aspect of this application provides an assembly method for a weighing mechanism mounting base 400. The assembly method fixes the weighing mechanism mounting base 400 to the bottom of a vehicle, thereby achieving the installation of the weighing mechanism. The assembly method includes:

[0052] S1. Provide the above-mentioned auxiliary tooling 100; use the auxiliary tooling 100, and select an auxiliary tooling 100 of appropriate size according to different vehicle bottoms.

[0053] S2. Fix the weighing mechanism mounting base 400 to be assembled onto the assembly main board 110 of the auxiliary tooling 100; place the edge of the weighing mechanism mounting base 400 against the first stop 120 or the third stop 140, and then use the locking member 112 to fix the weighing mechanism mounting base 400 to the assembly main board 110.

[0054] S3. Position the auxiliary fixture 100 with the fixed weighing mechanism mounting base 400 at the bottom of the vehicle; specifically, this includes: lifting the auxiliary fixture 100, placing the assembly main board 110 against the bottom of the vehicle, placing the first stop 120 against the inner wall of the groove structure 200 at the bottom of the vehicle, placing the second stop 130 against the edge of the center plate at the bottom of the vehicle, and confirming that the assembly main board 110 is attached to the bottom of the vehicle and that the first stop 120 and the second stop 130 are accurately positioned.

[0055] S4. Fix the weighing mechanism mounting base 400 onto the vehicle; use welding to spot weld the weighing mechanism mounting base 400 to the bottom of the vehicle to complete the assembly welding, and finally install the sensor valve of the weighing mechanism.

[0056] S5. Remove the auxiliary tooling 100 from the weighing mechanism mounting base 400. After installation, first remove the locking part 112 and then remove the auxiliary tooling 100.

[0057] The existing technology does not have any tools or methods to assist in the installation of the weighing mechanism mounting base 400. It is directly fixed to the bottom of the vehicle by the mounting base 400. Due to the narrow space in the groove of the vehicle bottom beam and the limitation of the work site, it is very inconvenient for the assembly personnel to hold the weighing mechanism mounting base 400 for installation, and it is not easy to position it accurately. On the other hand, the weighing mechanism mounting base 400 is small, and the welding gun of the spot welder is very close to the assembly personnel's hand, which can easily burn the assembly personnel during spot welding, posing a safety hazard. This application fixes the weighing mechanism mounting base 400 to the assembly main board 110 to form an integral unit. By positioning the auxiliary tooling 100, the precise position of the weighing mechanism mounting base 400 is determined. Specifically, the assembly main board 110 is first placed against the bottom of the vehicle for vertical positioning. The first stop 120 is placed against the inner wall of the groove structure 200 for horizontal positioning. The first stop 120 is placed against the groove structure 200 for horizontal positioning. The second stop 130 is placed against the fixed structure 300 for horizontal positioning. The second stop 130 is placed against the fixed structure 300 for horizontal positioning. In this way, the precise position of the weighing mechanism mounting base 400 is determined through three positioning steps.

[0058] Using the vehicle's underside, center beam, and fixed structure 300 as references, and with auxiliary work removed to complete the assembly, the method is simple and easy to operate. This enables rapid installation and precise positioning of the weighing mechanism mounting base 400, avoiding burns and eliminating safety hazards. On the other hand, existing technologies use a scribing-based handheld installation method, which easily leads to misalignment or non-alignment of the weighing mechanism's sensor valve holes, resulting in frequent disassembly and reassembly, with an actual rework rate exceeding 40%. However, using this application, frequent disassembly and reassembly can be avoided, achieving one-time installation with a 100% assembly accuracy rate and virtually no actual rework rate.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," "optional example," or "optional implementation," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0060] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0061] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An auxiliary tooling for a weighing mechanism mounting base, used to assist in the assembly of the weighing mechanism mounting base (400) on a vehicle, characterized in that, The auxiliary tooling includes: The main board (110) is used to fix and support the mounting base (400) of the weighing mechanism. The first stop (120) is connected to the assembly main board (110) and is positioned in the groove structure (200) at the bottom of the vehicle; The second stop (130) is connected to the mounting main board (110) and is used to abut against the fixing structure (300) at the bottom of the vehicle, the fixing structure (300) being located outside the groove structure (200); The assembly motherboard (110) has a first plate surface and a second plate surface opposite to each other, and the first stop (120) is connected to the first plate surface; One end of the second stop (130) is welded to the second plate surface of the mounting motherboard (110). The assembly motherboard (110) abuts against the bottom of the vehicle, making the weighing mechanism mounting base (400) parallel to the bottom of the vehicle.

2. The auxiliary tooling for the weighing mechanism mounting base according to claim 1, characterized in that, The first stop (120) is provided in at least two, and the multiple first stop (120) are arranged opposite to each other, so that the ends of the multiple first stop (120) can respectively abut against the relative positions of the inner wall of the groove structure (200) at the bottom of the vehicle.

3. The auxiliary tooling for the weighing mechanism mounting base according to claim 1 or 2, characterized in that, The first stop (120) is bent, one end of the first stop (120) is connected to the surface of the mounting main board (110), and the other end of the first stop (120) is bent toward the groove structure (200) and can abut against the inner wall of the groove structure (200).

4. The auxiliary tooling for the weighing mechanism mounting base according to claim 3, characterized in that, The assembly motherboard (110) can be fixed to the weighing mechanism mounting base (400) via the first plate surface.

5. The auxiliary tooling for the weighing mechanism mounting base according to claim 4, characterized in that, It also includes a third stop (140), which is disposed on the first plate surface of the assembly main board (110). When the weighing mechanism mounting base (400) is installed, the third stop (140) abuts against the weighing mechanism mounting base (400), so that the assembly main board (110) positions the weighing mechanism mounting base (400) through the third stop (140).

6. The auxiliary tooling for the weighing mechanism mounting base according to claim 1, characterized in that, The second stop (130) is provided in at least two, one end of the plurality of second stop (130) is connected to the surface of the mounting motherboard (110), and the other end of the plurality of second stop (130) extends out of the edge of the mounting motherboard (110).

7. The auxiliary tooling for the weighing mechanism mounting base according to claim 1, characterized in that, The assembly motherboard (110) is provided with a locking member (112), which is used to fix the assembly motherboard (110) to the weighing mechanism mounting base (400).

8. The auxiliary tooling for the weighing mechanism mounting base according to claim 1, characterized in that, The corners of the assembly motherboard (110) are rounded.

9. A method for assembling a mounting base for a weighing mechanism, characterized in that, The assembly method includes: Provide the auxiliary tooling as described in any one of claims 1-8; Fix the mounting base (400) of the weighing mechanism to be assembled onto the assembly main board (110) of the auxiliary tooling; The auxiliary tooling, to which the weighing mechanism mounting base (400) is fixed, is positioned at the bottom of the vehicle; The weighing mechanism mounting base (400) is fixedly assembled onto the vehicle; Remove the auxiliary tooling from the weighing mechanism mounting base (400).

10. The assembly method of the weighing mechanism mounting base according to claim 9, characterized in that, Positioning the auxiliary fixture, to which the weighing mechanism mounting base (400) is fixed, at the bottom of the vehicle, specifically includes: The assembly motherboard (110) is placed against the bottom of the vehicle, the first stop (120) is placed against the groove structure (200) at the bottom of the vehicle, and the second stop (130) is placed against the fixing structure (300) at the bottom of the vehicle.

Images