Positioning device for counterbalance forklift frame

Abstract

The utility model discloses a positioning device for a counterbalance forklift frame. The positioning device comprises a platform assembly, a pressing clamp, a rear tail positioning assembly, a forklift body positioning assembly, a frame connecting plate positioning assembly, an engine support base, an oil cylinder positioning assembly, a front axle positioning assembly and a cab lug plate positioning assembly. The front axle positioning assembly and the rear tail positioning assembly are oppositely arranged in the middles of the two ends of the platform assembly. The frame connecting plate positioning assemblies are oppositely arranged on the two sides of the center line of the platform assembly. The pressing pincers are respectively close to the opposite sides of the front axle positioning assembly and the rear tail positioning assembly and are used for pressing and fixing front and rear connecting plates of the frame; the oil cylinder positioning assembly and the cab lug plate positioning assembly are oppositely arranged on the two sides of the center line of the platform assembly. The engine support seat is arranged in the middle of the platform assembly. The vehicle body positioning assemblies are oppositely arranged on the two sides of the center line of the platform assembly. According to the utility model, rapid positioning and pressing of the counterbalance forklift frame are realized, the universality is high, the positioning precision is high, the production labor intensity is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of structural component splicing devices, and particularly relates to a positioning device for a counterbalanced forklift truck frame. Background Technique

[0002] With the rapid development of China's economy, the logistics industry has become increasingly prominent in the national economy. Material transfer is the core link of logistics, and its efficiency directly affects the overall efficiency and cost of logistics. The counterbalanced forklift truck is one of the commonly used lifting machines for material transfer, with the characteristics of strong flexibility, small occupied space, and wide application range, and is widely used.

[0003] The frame is a key structural component and an important part of the counterbalanced forklift truck. Due to the complex structure and large stress of the frame, high requirements are imposed on dimensional accuracy. During the welding and assembly production process, it is necessary for workers to use traditional pads, pressing plates, pressing rods, etc. to perform splicing positioning and pressing on the counterbalanced forklift truck frame, resulting in low efficiency and low accuracy, which directly affects the assembly quality and final use performance of the product. Summary of the Invention

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a positioning device for a counterbalanced forklift truck frame, which can achieve rapid positioning and pressing of the frame, improve production efficiency, and enhance the positioning accuracy.

[0005] The utility model provides the following technical solutions:

[0006] A positioning device for a counterbalanced forklift truck frame includes a platform assembly, and further includes a pressing clamp, a rear end positioning assembly, a body positioning assembly, a frame connecting plate positioning assembly, an engine support seat, an oil cylinder positioning assembly, a front axle positioning assembly, and a cab ear plate positioning assembly installed on the platform assembly; the front axle positioning assembly and the rear end positioning assembly are relatively arranged at the middle parts of both ends of the platform assembly; the frame connecting plate positioning assembly is relatively arranged on both sides of the center line of the platform assembly; the pressing clamps are relatively arranged on both sides of the center line of the platform assembly, and are respectively close to the opposite sides of the front axle positioning assembly and the rear end positioning assembly, and are used for pressing and fixing the front and rear connecting plates of the frame; the oil cylinder positioning assembly and the cab ear plate positioning assembly are relatively arranged on both sides of the center line of the platform assembly, and are located at one end close to the front axle positioning assembly; the engine support seat is arranged at the middle of the platform assembly and is located on one side close to the rear end positioning assembly; the body positioning assemblies are relatively arranged on both sides of the center line of the platform assembly.

[0007] As an optional technical solution of the utility model, the platform assembly includes an upper plate, lifting lugs, and a bottom frame; the lifting lugs are installed on both sides of the bottom frame; the upper plate is installed above the bottom frame.

[0008] As an alternative technical solution of the present utility model, the front axle positioning assembly includes a positioning cylinder and a positioning mechanism; the front end of the positioning cylinder is connected to a front end positioning connecting plate, and is provided with a front end positioning plate limiting mechanism, the rear end of the positioning cylinder is connected to a rear end push plate, and is provided with a rear end push plate limiting mechanism; the positioning mechanism includes a mounting shaft, a front axle positioning shaft, bearings, a cylinder connecting plate and a front axle pitch positioning plate; the front axle positioning shafts are oppositely arranged at both ends of the mounting shaft, the front axle pitch positioning plate is arranged on the opposite side of the front axle positioning shafts; the bearings are oppositely arranged on the opposite side of the front axle positioning shafts; the cylinder connecting plate is arranged in the middle of the mounting shaft for connecting the front end positioning connecting plate.

[0009] As an alternative technical solution of the present utility model, the vehicle body positioning assembly includes a first positioning assembly, a second positioning assembly and a third positioning assembly.

[0010] As an alternative technical solution of the present utility model, the first positioning assembly is oppositely arranged on both sides of the rear tail positioning assembly for positioning the rear ends of the left and right vehicle bodies; the first positioning assembly includes a first cylinder, a first cylinder mounting seat and a first pressing plate, the first cylinder is arranged on the top of the first cylinder mounting seat; the first pressing plate is arranged at the output end of the first cylinder for applying pressure to the rear ends of the left and right vehicle bodies.

[0011] As an alternative technical solution of the present utility model, the second positioning assembly is arranged on both sides close to the center line of the platform assembly for positioning the inner sides of the left and right vehicle bodies; the second positioning assembly includes a second cylinder, a second cylinder mounting seat and a second pressing plate, the second cylinder is arranged on the top of the second cylinder mounting seat; the second pressing plate is arranged at the output end of the second cylinder for applying pressure to the inner sides of the left and right vehicle bodies.

[0012] As an alternative technical solution of the present utility model, the third positioning assembly includes a rear vehicle body positioning assembly for positioning the outer rear ends of the left and right vehicle bodies and a front vehicle body positioning assembly for positioning the outer front ends of the left and right vehicle bodies; the rear vehicle body positioning assembly and the front vehicle body positioning assembly are oppositely arranged on both sides of the center line of the platform assembly and are located on both sides of the second positioning assembly; both the rear vehicle body positioning assembly and the front vehicle body positioning assembly include a third cylinder, a third cylinder mounting seat and a third pressing plate, the third cylinder is arranged on the top of the third cylinder mounting seat; the third pressing plate is arranged at the output end of the third cylinder for applying pressure to the outer sides of the left and right vehicle bodies.

[0013] As an alternative technical solution of the present utility model, it further includes heightening members, which are oppositely arranged on both sides of the center line of the platform assembly and are close to the front vehicle body positioning assembly for raising the vehicle frame.

[0014] As an alternative technical solution of the present utility model, the vehicle frame connecting plate positioning assembly includes a front connecting plate positioning plate at the bottom of the vehicle frame and a rear connecting plate positioning plate at the bottom of the vehicle frame.

[0015] As an alternative technical solution of the present utility model, the front connecting plate positioning plates at the bottom of the vehicle frame are relatively arranged on both sides of the center line of the platform assembly and are located on the side close to the front axle positioning assembly; the rear connecting plate positioning plates at the bottom of the vehicle frame are relatively arranged on both sides of the center line of the platform assembly and are located on the side close to the rear tail positioning assembly.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] The positioning device for the counterbalanced forklift truck vehicle frame provided by the present utility model realizes the rapid positioning and pressing of the vehicle frame through the platform assembly and each positioning assembly arranged on the platform assembly, has strong versatility, high positioning accuracy, stable structure, safety and reliability, reduces the production labor intensity, and improves the production efficiency. Description of the Drawings

[0018] Figure 1 is the installation schematic diagram of the positioning device for the counterbalanced forklift truck vehicle frame in the embodiment of the present utility model;

[0019] Figure 2 is the structural schematic diagram of the positioning device for the counterbalanced forklift truck vehicle frame in the embodiment of the present utility model;

[0020] Figure 3 is the structural schematic diagram of the platform assembly in the embodiment of the present utility model;

[0021] Figure 4 is the structural schematic diagram of the positioning mechanism in the embodiment of the present utility model;

[0022] Figure 5 is the structural schematic diagram of the positioning cylinder in the embodiment of the present utility model;

[0023] Figure 6 is the structural schematic diagram of the vehicle frame in the embodiment of the present utility model.

[0024] The markings in the figure are: 1, vehicle frame; 1-1, rear end assembly; 1-2, vehicle body; 1-3, cab ear plate; 1-4, front connecting plate at the bottom of the vehicle frame; 1-5, front axle; 1-6, oil cylinder positioning hole; 1-7, engine support; 1-9, rear connecting plate at the bottom of the vehicle frame; 2, platform assembly; 3, upper plate; 4, lifting lug; 5, bottom frame; 6, clamping tongs; 7, rear end positioning assembly; 8, first positioning assembly; 9, engine support seat; 10, oil cylinder positioning assembly; 11, second positioning assembly; 12, front axle positioning assembly; 12-1, front axle positioning shaft; 12-2, bearing; 12-3, cylinder connecting plate; 12-4, front axle pitch positioning plate; 12-5, front end positioning connecting plate; 12-6, front end positioning plate limiting mechanism; 12-7, rear end push plate limiting mechanism; 13, cab ear plate positioning assembly; 14, positioning plate for the front connecting plate at the bottom of the vehicle frame; 15, shim; 16, rear vehicle body positioning assembly; 17, positioning plate for the rear connecting plate at the bottom of the vehicle frame; 18, front vehicle body positioning assembly. Detailed implementation mode

[0025] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention, and cannot be used to limit the protection scope of the present invention.

[0026] Embodiment 1

[0027] This embodiment provides a positioning device for a counterbalanced forklift truck vehicle frame, as Figure 1 shown, and this assembly jig is used for assembling the vehicle frame 1.

[0028] The positioning device includes a platform assembly 2, and also includes a clamping tongs 6, a rear end positioning assembly 7, a vehicle body positioning assembly, a vehicle frame connecting plate positioning assembly, an engine support seat 9, an oil cylinder positioning assembly 10, a front axle positioning assembly 12, a cab ear plate positioning assembly 13 and a shim 15 which are installed on the platform assembly 2.

[0029] Specifically, as Figure 2 and 6As shown in the figure, the front axle positioning assembly 12 and the rear tail positioning assembly 7 are relatively arranged at the middle parts of both ends of the platform assembly 2, and are respectively used for positioning the front axle 1-5 and the rear tail assembly 1-1. The frame connecting plate positioning assembly is relatively arranged on both sides of the center line of the platform assembly 2. The pressing pliers 6 are relatively arranged on both sides of the center line of the platform assembly 2, and are respectively close to the opposite sides of the front axle positioning assembly 12 and the rear tail positioning assembly 7, and are used for pressing and fixing the front and rear connecting plates of the frame. The oil cylinder positioning assembly 10 and the cab ear plate positioning assembly 13 are relatively arranged on both sides of the center line of the platform assembly 2, and are located at one end close to the front axle positioning assembly 12. The engine support seat 9 is arranged at the middle of the platform assembly 2 and is located on the side close to the rear tail positioning assembly 7. The body positioning assembly is relatively arranged on both sides of the center line of the platform assembly 2. The heightening pieces 15 are relatively arranged on both sides of the center line of the platform assembly 2 and are close to the front body positioning assembly 18, and are used for raising the frame 1.

[0030] Further, in this embodiment, 4 pressing pliers 6 are provided and the model is CH-14412.

[0031] Further, in this embodiment, the pressing plate on the cab ear plate positioning assembly 13 presses the cab ear plate 1-3 from the outside, and positions the cab ear plate 1-3 at a position inclined by 2°.

[0032] Further, in this embodiment, both the rear tail positioning assembly 7 and the engine support seat 9 are fixed to the rear tail assembly 1-1 and the engine support 1-7 respectively through positioning shafts.

[0033] Further, in this embodiment, the heightening pieces 15 adopt linear guides, which are convenient for positioning the front and rear connecting plates of the frame.

[0034] As Figure 3 shown, the platform assembly 2 includes an upper plate 3, lifting lugs 4 and a bottom frame 5. The lifting lugs 4 are installed on both sides of the bottom frame 5. The upper plate 3 is installed above the bottom frame 5.

[0035] Further, in this embodiment, the upper plate 3 has a specification of 30mm*6000mm*2400mm, and its flatness is less than 2mm. The upper plate 3 is provided with three types of threaded holes, M10, M8, and M12. The M10 and M12 threaded holes are used to connect each mounting seat, and the M8 threaded hole is used to connect the linear guide.

[0036] Further, in this embodiment, 4 lifting lugs 4 are provided for hoisting, placing and transferring the entire device.

[0037] As Figure 4 and 5As shown, the front axle positioning assembly 12 includes a positioning cylinder and a positioning mechanism. The front end of the positioning cylinder is connected to the front end positioning connecting plate 12-5 and is provided with a front end positioning plate limiting mechanism 12-6. The rear end of the positioning cylinder is connected to the rear end push plate and is provided with a rear end push plate limiting mechanism 12-7. The positioning mechanism includes a mounting shaft, a front axle positioning shaft 12-1, bearings 12-2, a cylinder connecting plate 12-3, and a front axle pitch positioning plate 12-4. The front axle positioning shafts 12-1 are oppositely arranged at both ends of the mounting shaft. The front axle pitch positioning plate 12-4 is arranged on the opposite sides of the front axle positioning shafts 12-1. The bearings 12-2 are oppositely arranged on the opposite sides of the front axle positioning shafts 12-1. The cylinder connecting plate 12-3 is arranged in the middle of the mounting shaft and is used to connect the front end positioning connecting plate 12-5.

[0038] In this embodiment, the vehicle body positioning assembly includes a first positioning assembly 8, a second positioning assembly 11, and a third positioning assembly.

[0039] Further, the first positioning assembly 8 is oppositely arranged on both sides of the rear tail positioning assembly 7 and is used to position the rear ends of the left and right vehicle bodies. The first positioning assembly 8 includes a first cylinder, a first cylinder mounting seat, and a first pressing plate. The first cylinder is arranged on the top of the first cylinder mounting seat. The first pressing plate is arranged at the output end of the first cylinder and is used to apply pressure to the rear ends of the left and right vehicle bodies, thereby pressing the rear ends of the left and right vehicle bodies tightly.

[0040] Further, the second positioning assembly 11 is arranged on both sides close to the center line of the platform assembly 2 and is used to position the inner sides of the left and right vehicle bodies. The second positioning assembly 11 includes a second cylinder, a second cylinder mounting seat, and a second pressing plate. The second cylinder is arranged on the top of the second cylinder mounting seat. The second pressing plate is arranged at the output end of the second cylinder and is used to apply pressure to the inner sides of the left and right vehicle bodies, thereby pressing the inner sides of the left and right vehicle bodies tightly.

[0041] Further, the third positioning assembly includes a rear vehicle body positioning assembly 16 for positioning the rear outer ends of the left and right vehicle bodies and a front vehicle body positioning assembly 18 for positioning the front outer ends of the left and right vehicle bodies. The rear vehicle body positioning assembly 16 and the front vehicle body positioning assembly 18 are oppositely arranged on both sides of the center line of the platform assembly 2 and are located on both sides of the second positioning assembly 11. Both the rear vehicle body positioning assembly 16 and the front vehicle body positioning assembly 18 include a third cylinder, a third cylinder mounting seat, and a third pressing plate. The third cylinder is arranged on the top of the third cylinder mounting seat. The third pressing plate is arranged at the output end of the third cylinder and is used to apply pressure to the outer sides of the left and right vehicle bodies, thereby pressing the outer sides of the left and right vehicle bodies tightly.

[0042] In this embodiment, since the rear side of the vehicle body 1-2 is higher than the front side, the rear vehicle body positioning assembly 16 adopts a combination of two sets of third cylinders, third cylinder mounting seats and third pressing plates, and the two sets are longitudinally installed. The front vehicle body positioning assembly 18 adopts a combination of one set of third cylinders, third cylinder mounting seats and third pressing plates. The rear vehicle body positioning assembly 16 and the front vehicle body positioning assembly 18 respectively position the rear side and the front side of the vehicle body 1-2, and the positioning effect is better.

[0043] In this embodiment, the frame connecting plate positioning assembly includes a front connecting plate positioning plate 14 at the bottom of the frame and a rear connecting plate positioning plate 17 at the bottom of the frame.

[0044] Furthermore, the front connecting plate positioning plate 14 at the bottom of the frame is relatively arranged on both sides of the center line of the platform assembly 2 and is located on the side close to the front axle positioning assembly 12 for positioning the front connecting plate 1-4 at the bottom of the frame. The rear connecting plate positioning plate 17 at the bottom of the frame is relatively arranged on both sides of the center line of the platform assembly 2 and is located on the side close to the rear tail positioning assembly 7 for positioning the rear connecting plate 1-9 at the bottom of the frame.

[0045] In this embodiment, the oil cylinder positioning assembly 10 includes a smooth shaft and a slide rail, and the smooth shaft moves along the slide rail and then extends into the oil cylinder positioning hole 1-6 for fixation.

[0046] Embodiment 2

[0047] Based on Embodiment 1, this embodiment provides a method for assembling the frame 1 of the positioning device group, and the frame 1 is as shown. The assembling process specifically includes: Figure 6 as shown.

[0048] Step 1: Move the rear tail positioning assembly 7 to the required position for manufacturing the frame and fix it to the platform assembly 2. Use a crane to place the bottom plane of the rear tail assembly 1-1 of the frame on the rear tail positioning assembly 7, align the front, rear, left and right round holes on the rear tail positioning assembly 7, and insert the positioning shaft for fixation.

[0049] Step 2: Place the front connecting plate 1-4 at the bottom of the frame into the front connecting plate positioning plate 14 at the bottom of the frame, and place the rear connecting plate 1-9 at the bottom of the frame on the rear connecting plate positioning plate 17 at the bottom of the frame. After the front and rear connecting plates are close to the positioning pins, push the clamping pliers 6 tightly to fix the front and rear connecting plates.

[0050] Step 3: Open the third cylinder of the third positioning assembly. After it extends to the in-place position, open the first cylinder of the first positioning assembly. After it extends to the in-place position, use a crane to separately move the left and right vehicle body frames 1-2 into place, so that the vehicle body 1-2 abuts against the positioning plate on the cylinder.

[0051] Step 4: Open the second cylinder of the second positioning component 11. After it extends in place, press the left and right bodies 1-2 of the vehicle frame tightly against the second cylinder positioning plate. Open the positioning cylinder of the front axle positioning component 12 to position the front axle 1-5, and push the left and right bodies of the vehicle frame backward and tightly against the rear side cylinder positioning plate.

[0052] Step 5: Extend the oil cylinder positioning component 10 to the oil cylinder positioning hole 1-6. At the same time, open the cylinder in the cab ear plate positioning component 13. After it extends in place, bring the cab ear plate 1-3 close to the front end positioning block of the cylinder for dotting.

[0053] Step 6: Align the holes on the engine support 1-7 with the holes on the engine support seat 9, insert the positioning shaft for fixation, and perform the overall dotting of the vehicle frame. After the dotting is completed, retract the oil cylinder positioning component 10 and the cab ear plate positioning component 13, then retract the first positioning component 8, the second positioning component 11, and the third positioning component. Open the clamping pliers 6, pull out the positioning shafts in the rear tail positioning component 7 and the engine support seat 9, and use the overhead crane to lift the vehicle frame 1 out of the tooling and transfer it to the next process.

[0054] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0055] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0056] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A positioning device for a counterbalanced forklift frame, comprising a platform assembly (2), characterized in that: It also includes a clamp (6), a rear tail positioning assembly (7), a vehicle body positioning assembly, a frame connecting plate positioning assembly, an engine bracket seat (9), a cylinder positioning assembly (10), a front axle positioning assembly (12) and a cab ear plate positioning assembly (13) installed on the platform assembly (2); The front axle positioning assembly (12) and the rear tail positioning assembly (7) are relatively arranged at the middle of the two ends of the platform assembly (2); the frame connecting plate positioning assembly is relatively arranged at both sides of the center line of the platform assembly (2); the clamping pliers (6) are relatively arranged at both sides of the center line of the platform assembly (2), and are respectively close to the opposite sides of the front axle positioning assembly (12) and the rear tail positioning assembly (7), and are used for clamping and fixing the front and rear connecting plates of the frame; The oil cylinder positioning assembly (10) and the cab ear plate positioning assembly (13) are arranged on opposite sides of the center line of the platform assembly (2) and are located at one end close to the front axle positioning assembly (12); The engine support seat (9) is arranged in the middle of the platform assembly (2) and is located on a side close to the rear positioning assembly (7); The vehicle body positioning components are relatively arranged on two sides of the center line of the platform component (2).

2. The positioning device for a counterbalanced forklift frame according to claim 1, characterized in that: The platform assembly (2) comprises an upper plate (3), lifting ears (4) and a bottom frame (5); The lifting ears (4) are installed on both sides of the bottom frame (5); and the upper plate (3) is installed above the bottom frame (5).

3. The positioning device for a counterbalanced forklift frame according to claim 1, characterized in that: The front axle positioning assembly (12) comprises a positioning cylinder and a positioning mechanism; The front end of the positioning cylinder is connected to a front end positioning connection plate (12-5) and is provided with a front end positioning plate limiting mechanism (12-6); the rear end of the positioning cylinder is connected to a rear end push plate and is provided with a rear end push plate limiting mechanism (12-7); The positioning mechanism comprises a mounting shaft, a front axle positioning shaft (12-1), a bearing (12-2), a cylinder connecting plate (12-3) and a front axle gear spacing positioning plate (12-4); the front axle positioning shaft (12-1) is relatively arranged at two ends of the mounting shaft, and the front axle gear spacing positioning plate (12-4) is arranged on the opposite side of the front axle positioning shaft (12-1); the bearing (12-2) is relatively arranged on the opposite side of the front axle positioning shaft (12-1); and the cylinder connecting plate (12-3) is arranged in the middle of the mounting shaft and is used to connect the front end positioning connecting plate (12-5).

4. The positioning device for a counterbalanced forklift frame according to claim 1, characterized in that: The vehicle body positioning assembly comprises a first positioning assembly (8), a second positioning assembly (11) and a third positioning assembly.

5. The positioning device for a counterbalanced forklift frame according to claim 4, characterized in that: The first positioning components (8) are arranged on two sides of the rear positioning component (7) and are used to position the rear ends of the left and right vehicle bodies; The first positioning assembly (8) comprises a first cylinder, a first cylinder mounting seat and a first pressure plate, wherein the first cylinder is arranged on the top of the first cylinder mounting seat; the first pressure plate is arranged at the output end of the first cylinder and is used to apply pressure to the rear ends of the left and right vehicle bodies.

6. The positioning device for a counterbalanced forklift frame according to claim 4, characterized in that: The second positioning components (11) are arranged close to both sides of the center line of the platform component (2) and are used to position the inner sides of the left and right vehicle bodies; The second positioning assembly (11) comprises a second cylinder, a second cylinder mounting seat and a second pressure plate, wherein the second cylinder is arranged on the top of the second cylinder mounting seat; the second pressure plate is arranged at the output end of the second cylinder and is used to apply pressure to the inner sides of the left and right vehicle bodies.

7. The positioning device for a counterbalanced forklift frame according to claim 4, characterized in that: The third positioning assembly comprises a rear body positioning assembly (16) for positioning the rear ends of the outer sides of the left and right body and a front body positioning assembly (18) for positioning the front ends of the outer sides of the left and right body. The rear body positioning component (16) and the front body positioning component (18) are arranged on both sides of the center line of the platform component (2) and are located on both sides of the second positioning component (11); The rear vehicle body positioning assembly (16) and the front vehicle body positioning assembly (18) both comprise a third cylinder, a third cylinder mounting seat and a third pressure plate, wherein the third cylinder is arranged on the top of the third cylinder mounting seat; the third pressure plate is arranged at the output end of the third cylinder and is used to apply pressure to the outer sides of the left and right vehicle bodies.

8. The positioning device for a counterbalanced forklift frame according to claim 7, characterized in that: It also includes a cushioning member (15) which is arranged on both sides of the center line of the platform assembly (2) and is close to the front vehicle body positioning assembly (18) and is used to raise the vehicle frame (1).

9. The positioning device for a counterbalanced forklift frame according to claim 1, characterized in that: The vehicle frame connecting plate positioning assembly comprises a front connecting plate positioning plate (14) at the bottom of the vehicle frame and a rear connecting plate positioning plate (17) at the bottom of the vehicle frame.

10. The positioning device for a counterbalanced forklift frame according to claim 9, characterized in that: The front connecting plate positioning plate (14) at the bottom of the vehicle frame is relatively arranged on both sides of the center line of the platform component (2) and is located on a side close to the front axle positioning component (12); The rear connection plate positioning plate (17) at the bottom of the vehicle frame is relatively arranged on both sides of the center line of the platform component (2) and is located on a side close to the rear tail positioning component (7).

Images