Liquefied gas fuel forklift frame end detection tool
By using limiting structures such as the rear main board, left and right baffles, triangular limiting plates, and washers in the inspection of the tail frame, rapid and accurate inspection of the tail frame is achieved, solving the problem of difficulty in standardizing the inspection and improving production efficiency and accuracy.
Patent Information
- Application Number
- CN202520468963.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-03-18
AI Technical Summary
In the existing technology, there is a lack of specialized testing equipment for the matching and testing of the chassis tailstock and other components, which makes it difficult to standardize and regulate the testing work, affecting testing efficiency and production process improvement.
It adopts a limiting structure such as a rear main board, left and right baffles, triangular limit plates, and washers. By simulating the counterweight mounting surface and cooperating with the rear frame, it can achieve fast and accurate dimensional detection. Standard profiles are used to manufacture each detection component and they are connected by reinforcing ribs to form a stable whole.
It improved testing efficiency and production process standardization, ensured tailstock processing accuracy, reduced manufacturing costs, improved counterweight hoisting efficiency, and reduced welding rework.
Smart Images

Figure CN223783819U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of forklift frame technology, and more specifically, to a liquefied gas fuel forklift frame end inspection tooling. Background Technology
[0002] In the forklift manufacturing industry, the chassis is a crucial component, and its manufacturing precision directly impacts the overall assembly quality of the forklift. During the welding process from individual components to the complete vehicle, various factors such as material cutting deviations, welding deviations, and welding deformation can introduce manufacturing errors. Among these, the manufacturing precision of the tailstock is particularly critical for the installation of the counterweight. If the tailstock's dimensional accuracy is substandard, it will directly affect the efficiency and quality of the counterweight installation.
[0003] In existing technologies, there is a lack of specialized testing fixtures for the matching inspection of the rear frame and other components. This makes it difficult to standardize and regulate the dimensional inspection of the rear frame, affecting not only inspection efficiency but also hindering the standardization and improvement of production processes. Therefore, it is necessary to develop a specialized fixture for inspecting the rear frame to improve inspection efficiency and standardize production processes. Utility Model Content
[0004] To overcome the aforementioned deficiencies in the prior art, this utility model provides a liquefied gas fuel forklift frame end inspection fixture. It uses the rear main plate as the reference surface, and in conjunction with left and right baffles, triangular limit plates, washers, and other limiting structures, it simulates the counterweight mounting surface and cooperates with the frame tail frame to achieve rapid and accurate dimensional inspection of the welded frame tail frame, effectively standardizing the production process and improving production efficiency.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A liquefied gas fuel forklift frame end inspection fixture includes a rear main board (4), a left baffle (7) and a right baffle (1) fixedly installed on both sides of the rear main board (4), a triangular limiting plate (2), a washer (8) and a locking plate limiting plate (9) fixed on the rear main board (4), wherein the left baffle (7) and the right baffle (1) are connected and reinforced to the rear main board (4) by reinforcing rib I (5) and reinforcing rib II (6).
[0007] As a further embodiment of this utility model, the rear main board (4) serves as a tooling reference surface. The rear main board (4) is connected to the triangular limiting plate (2) via an extension plate (3). The triangular limiting plate (2) and the washer (8) are positioned opposite each other to form a positioning fit.
[0008] As a further embodiment of this utility model, the left baffle (7) and the right baffle (1) serve as detection references on the left and right sides of the counterweight, respectively, for detecting the gap between the left and right sides of the tailstock and the housing.
[0009] As a further embodiment of this utility model, the washer (8) serves as the contact surface between the counterweight and the tailstock, limiting their gap, and the locking plate limiting plate (9) serves as the limiting plate of the tailstock locking plate, limiting the positioning of the locking plate.
[0010] As a further embodiment of this utility model, in addition to the reinforcing rib I (5) and the reinforcing rib II (6), the left baffle (7), the right baffle (1), the triangular limiting plate (2), the washer (8) and the locking plate limiting plate (9) of the testing fixture must be in contact with the plane related to the tailstock, and no gaps are allowed.
[0011] Compared with the prior art, the beneficial effects of this utility model of a liquefied gas fuel forklift frame end inspection fixture are as follows:
[0012] This invention uses standard profiles to manufacture each testing component. These materials are readily available on the market and easy to procure, significantly reducing the manufacturing cost of the tooling. Through the connection and fixation of reinforcing ribs I and II, the rear main plate, left and right baffles, and triangular limiting plate form a structurally stable whole. Installation is simple; simply align each testing part with the corresponding plane of the vehicle frame's tailstock to begin testing.
[0013] This utility model provides a unified inspection standard for the tailstock frame by employing a comprehensive inspection method that utilizes left and right baffles to detect the gap between the housing, triangular limiting plates and washers to detect the relative position, and locking plate limiting plates to detect the positioning of the locking plate. This effectively standardizes the welding process of the entire vehicle. Because the tooling can quickly and accurately inspect various dimensions and gaps, especially through the precise fit between the washers and the tailstock contact surfaces and the strict control of the gaps between the left and right baffles and the housing, the machining accuracy of the tailstock is ensured to meet requirements. This significantly improves the efficiency of subsequent counterweight lifting, reduces rework during welding, and lowers labor costs. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of a component of a liquefied gas fuel forklift frame end inspection fixture according to the present invention. Detailed Implementation
[0015] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0016] Example 1
[0017] A liquefied gas fuel forklift frame end inspection fixture includes a rear main board (4), a left baffle (7) and a right baffle (1) fixedly installed on both sides of the rear main board (4), a triangular limiting plate (2), a washer (8) and a locking plate limiting plate (9) fixed on the rear main board (4), wherein the left baffle (7) and the right baffle (1) are connected and reinforced to the rear main board (4) by reinforcing rib I (5) and reinforcing rib II (6).
[0018] In this embodiment of the utility model, the rear main board (4) serves as the tooling reference surface. The rear main board (4) is connected to the triangular limiting plate (2) through the extension plate (3). The triangular limiting plate (2) and the washer (8) are arranged opposite to each other to form a positioning fit.
[0019] In this embodiment of the present invention, the left baffle (7) and the right baffle (1) serve as detection references on the left and right sides of the counterweight, respectively, for detecting the gap between the left and right sides of the tailstock and the housing.
[0020] In this embodiment of the present invention, the washer (8) serves as the contact surface between the counterweight and the tailstock, limiting their gap, and the locking plate limiting plate (9) serves as the limiting plate of the tailstock locking plate, limiting the positioning of the locking plate.
[0021] In this embodiment of the utility model, in addition to the reinforcing rib I (5) and the reinforcing rib II (6), the left baffle (7), the right baffle (1), the triangular limiting plate (2), the washer (8) and the locking plate limiting plate (9) of the LPG fuel forklift frame end inspection fixture must be in contact with the plane related to the tail frame, and no gaps are allowed.
[0022] Example 2
[0023] The LPG fuel forklift frame end inspection fixture in this embodiment has a simple structure and provides accurate and fast inspection. The inspection fixture is assembled from the rear main plate (4), left baffle (7), right baffle (1), triangular limiting plate (2), extension plate (3), reinforcing rib I (5), reinforcing rib II (6), washer (8), and locking plate limiting plate (9). It can quickly inspect the rear of the LPG fuel forklift frame, ensuring the installation dimensions of the forklift frame tail frame and improving the inspection efficiency and the lifting efficiency of the counterweight.
[0024] like Figure 1 As shown, the LPG fuel forklift frame end inspection fixture includes a rear main plate (4), a left baffle (7) and a right baffle (1) fixedly installed on both sides of the rear main plate (4), a triangular limiting plate (2) fixed on the rear main plate (4), a washer (8), and a locking plate limiting plate (9). Among them, the rear main plate (4) serves as the reference surface of the fixture, providing a reference for the relative positioning of the triangular limiting plate (2) and the washer (8). The rear main plate (4) is connected to the triangular limiting plate (2) through an extension plate (3) to limit its size. The left baffle (7) and the right baffle (1) serve as the inspection references on the left and right sides of the counterweight, respectively, for detecting the gap between the left and right sides of the tailstock and the housing. The left baffle (7) and the right baffle (1) are connected to the rear main plate (4) through reinforcing ribs I (5) and II (6) to strengthen the components, increase their strength, prevent deformation, and extend the service life of the fixture.
[0025] like Figure 1 As shown, the triangular limiting plate (2) serves as the limiting plate for the tailstock triangular plate and is positioned relative to the washer (8). The washer (8) serves as the contact surface between the counterweight and the tailstock, limiting their clearance. The locking plate limiting plate (9) serves as the limiting plate for the tailstock locking plate, limiting the positioning of the locking plate. Through the cooperation of these limiting structures, the dimensions and clearances of various parts of the tailstock can be accurately detected and controlled.
[0026] In practical use, the working principle of the LPG fuel forklift frame end inspection fixture is to mimic the main mounting surface of the counterweight and fit with the frame to confirm whether the frame tailstock dimensions are standard. During inspection, it must be ensured that, except for reinforcing ribs I (5) and II (6), the left baffle (7), right baffle (1), triangular limiting plate (2), washer (8), and locking plate limiting plate (9) of the inspection fixture must be in contact with the plane related to the tailstock, and no gaps are allowed. By observing the fit between each component and the tailstock, it is possible to quickly determine whether the tailstock machining accuracy meets the requirements.
[0027] The LPG fuel forklift frame end inspection fixture described in this embodiment uses standard profiles, which are easy to procure and have low cost. The use of this inspection fixture standardizes the welding process of the entire vehicle, improves the efficiency of welding and subsequent counterweight lifting, reduces labor costs to a certain extent, and can meet the production needs of LPG fuel forklifts.
[0028] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A tooling for inspecting the frame end of a liquefied petroleum gas (LPG) fuel forklift, characterized in that, It includes a rear main board (4), a left baffle (7) and a right baffle (1) fixedly installed on both sides of the rear main board (4), a triangular limiting plate (2), a washer (8) and a locking plate limiting plate (9) fixed on the rear main board (4). The left baffle (7) and the right baffle (1) are connected and reinforced to the rear main board (4) by reinforcing rib I (5) and reinforcing rib II (6).
2. The LPG fuel forklift frame end inspection fixture according to claim 1, characterized in that, The rear main board (4) serves as the tooling reference surface. The rear main board (4) is connected to the triangular limiting plate (2) through the extension plate (3). The triangular limiting plate (2) and the washer (8) are arranged opposite to each other to form a positioning fit.
3. The LPG fuel forklift frame end inspection fixture according to claim 1, characterized in that, The left baffle (7) and the right baffle (1) serve as detection benchmarks on the left and right sides of the counterweight, respectively, and are used to detect the gap between the left and right sides of the tailstock and the housing.
4. The LPG fuel forklift frame end inspection fixture according to claim 1, characterized in that, The washer (8) serves as the contact surface between the counterweight and the tailstock, limiting their gap. The locking plate limiting plate (9) serves as the limiting plate for the tailstock locking plate, limiting the positioning of the locking plate.
5. The LPG fuel forklift frame end inspection fixture according to claim 1, characterized in that, Except for the reinforcing ribs I (5) and II (6), the left baffle (7), the right baffle (1), the triangular limiting plate (2), the washer (8), and the locking plate limiting plate (9) of the testing fixture are in close contact with the plane related to the tailstock, and there is no gap.