Positioning tool for lower cross beam assembly of forklift gantry

Abstract

The invention belongs to the technical field of forklift door frames, and particularly relates to a forklift door frame lower cross beam assembly positioning tool which comprises a rack, a base, universal wheels arranged at the four corners of the bottom of the base and a portal frame arranged at the top of the base. A positioning assembly, comprising transverse mounting frames arranged at the top in a portal frame, a transverse lead screw arranged between the transverse mounting frames, a first motor arranged on one side of the portal frame, a first sliding block arranged on the surface of the transverse lead screw, and a longitudinal mounting frame arranged at the bottom of the first sliding block, wherein the output end of the first motor is connected with the transverse lead screw; the second motor is arranged at the bottom of the longitudinal mounting frame, the output end of the second motor is connected with the longitudinal screw rod, the second sliding block is arranged on the surface of the longitudinal screw rod, the structure is reasonable, in the using process, up-and-down and left-and-right positioning is convenient, the mounting efficiency is improved, the product quality is improved, and the production cost is reduced. And meanwhile, rapid cooling can be achieved after welding, welding slag can be recycled, and practicability is high.

Description

Technical Field

[0001] The invention relates to the technical field of forklift door frames, in particular to a positioning tool for a lower crossbeam assembly of a forklift door frame. Background Art

[0002] A forklift is an industrial handling vehicle, mainly used for loading and unloading, stacking and short-distance transportation of palletized goods. It is usually driven by a fuel engine or battery, and is efficient and flexible, and is widely used in warehouses, factory workshops, docks, stations and other places.

[0003] The structural characteristics and working performance of forklifts are characterized by a series of technical parameters, including rated lifting capacity, load center distance, maximum lifting height, mast inclination, maximum travel speed, minimum turning radius, minimum ground clearance, wheelbase and track, etc. These parameters directly affect the operating performance and applicable scenarios of forklifts. There are many types of forklifts, including counterbalanced forklifts, reach forklifts, side forklifts, and leg forklifts. Each type of forklift has its specific uses and advantages. For example, counterbalanced forklifts are suitable for heavy cargo handling, while reach forklifts are suitable for operation in narrow spaces. Safety is very important when using forklifts. Operators need to undergo professional training and comply with safe operating procedures. Regular maintenance and inspection are the key to ensuring the safe operation of forklifts, including daily test runs and regular mechanical inspections.

[0004] The mast is a key component of the forklift, bearing the entire weight of the cargo. The mast lower beam assembly serves as the mounting base for the oil cylinder, and has high requirements for precision. Existing companies generally use marking assembly when producing masts. The specific assembly method of the lower beam assembly is to first use the workshop's homemade tooling to pad the height, then use a tape measure to measure and mark to determine the left and right position and front and back position of the lower beam assembly, and finally align the oil cylinder base assembly and spot weld it to the left and right channel steels. This assembly method of marking and homemade simple tooling has the following disadvantages:

[0005] (1) The self-made tooling has no front-to-back and left-to-right positioning, and is easy to slide and fall, posing a safety hazard;

[0006] (2) The precision of simple tooling is not high, the marking error is large, and the assembled products have large errors and poor quality;

[0007] (3) The assembly and marking time is long. It takes a long time to assemble a product, which seriously affects the efficiency of the vehicle assembly.

[0008] Based on the above problems, we propose a new positioning tool for the lower crossbeam assembly of the forklift mast. Summary of the invention

[0009] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0010] In view of the problems existing in the prior art, the present invention is proposed.

[0011] Therefore, the purpose of the present invention is to provide a positioning tool for the lower crossbeam assembly of a forklift mast, which can achieve convenient up and down and left and right positioning during use, help improve installation efficiency and product quality, and at the same time can quickly cool down after welding and recycle welding slag, which is highly practical.

[0012] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0013] A positioning tool for a lower crossbeam assembly of a forklift mast, comprising:

[0014] The frame includes a base, universal wheels arranged at four corners of the bottom of the base, and a gantry arranged at the top of the base;

[0015] The positioning assembly includes a transverse mounting frame arranged at the top of the gantry, a transverse screw rod arranged between the transverse mounting frames, a first motor arranged at one side of the gantry and having an output end connected to the transverse screw rod, a first slider arranged on the surface of the transverse screw rod, a longitudinal mounting frame arranged at the bottom of the first slider, a longitudinal screw rod arranged between the longitudinal mounting frames, a second motor arranged at the bottom of the longitudinal mounting frame and having an output end connected to the longitudinal screw rod, a second slider arranged on the surface of the longitudinal screw rod, a jacket arranged on the front surface of the second slider, and clamping mechanisms arranged on both sides of the jacket;

[0016] The cooling and slag removal component includes a support plate arranged on one side of the top of the base, a negative pressure fan arranged on the bottom of the support plate, a slag suction port arranged on the top of the support plate and connected to the negative pressure fan, a driving pulley arranged on the negative pressure fan shaft, a mounting plate arranged on one side of the gantry, a cooling fan arranged on one side of the mounting plate, a cold air port arranged on the front surface of the mounting plate and connected to the cooling fan, a driven pulley arranged on the cooling fan shaft, and a V-belt arranged on the surface of the driven pulley and the driving pulley.

[0017] As a preferred solution of the positioning tooling of the forklift portal frame lower crossbeam assembly described in the present invention, a self-locking mechanism is provided on the universal wheel.

[0018] As a preferred solution of the positioning tooling of the forklift gantry lower crossbeam assembly described in the present invention, scale lines are provided on both sides and the top of the gantry.

[0019] As a preferred solution of the positioning tooling of the forklift portal frame lower crossbeam assembly described in the present invention, guide rods are arranged between the transverse mounting frame and the longitudinal mounting frame, and matching guide holes are arranged on the first sliding block and the second sliding block.

[0020] As a preferred solution of the positioning tooling of the forklift mast lower crossbeam assembly described in the present invention, the clamping mechanism includes a threaded sleeve, a threaded rod arranged in the inner cavity of the threaded sleeve, a handwheel arranged at one end of the threaded rod, and a clamping plate arranged at the other end of the threaded rod.

[0021] As a preferred solution of the positioning tooling of the forklift mast lower crossbeam assembly described in the present invention, a rotating handle is provided on the surface of the hand wheel, the clamping plate is connected to the threaded rod through a rotating sleeve, and the clamping plate is arranged in an L shape.

[0022] As a preferred solution of the positioning tooling of the forklift gantry lower crossbeam assembly described in the present invention, the slag suction port is located directly below the jacket, and the output end of the negative pressure fan is connected to the collection box through a pipeline.

[0023] As a preferred solution of the positioning tooling of the forklift portal frame lower crossbeam assembly described in the present invention, wherein: the mounting plate is provided with a pipe laying groove matching with the cold air outlet.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The cooperation of the horizontal mounting frame, the horizontal screw rod, the first motor and the first slider realizes the left and right positioning, and the cooperation of the vertical mounting frame, the vertical screw rod, the second motor and the second slider realizes the up and down positioning, which helps to improve the installation efficiency, improve the product quality and reduce the error;

[0026] 2. In addition, through the cooperation of the negative pressure fan and the slag suction port, the welding slag can be absorbed and removed. At the same time, the negative pressure fan drives the active pulley to rotate while the negative pressure fan is working. The active pulley drives the driven pulley to rotate through the V-belt, and the driven pulley drives the cooling fan to work. The cooling fan cooperates with the cold air port to quickly cool the welding position, further improving the processing efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in combination with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0028] Figure 1 It is a schematic diagram of the structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the positioning component of the present invention;

[0030] Figure 3 It is a schematic diagram of the structure of the cooling and slag removal component of the present invention.

[0031] In the figure; 100 frame, 110 base, 120 universal wheel, 130 gantry, 200 positioning assembly, 210 transverse mounting frame, 220 transverse screw rod, 230 first motor, 240 first slider, 250 longitudinal mounting frame, 260 longitudinal screw rod, 270 second motor, 280 second slider, 290 jacket, 291 clamping mechanism, 300 cooling and slag removal assembly, 310 support plate, 320 negative pressure fan, 330 slag suction port, 340 driving pulley, 350 mounting plate, 360 cooling fan, 370 cold air port, 380 driven pulley, 390 V-belt. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0035] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0036] The present invention provides the following technical solutions: a positioning tool for the lower crossbeam assembly of a forklift mast, which is convenient for up and down and left and right positioning during use, helps to improve installation efficiency and product quality, and can quickly cool after welding, and can also recycle welding slag, which is highly practical. Please refer to Figure 1-3 , comprising a frame 100, a positioning assembly 200 and a cooling and slag removal assembly 300;

[0037] The frame 100 includes a base 110, universal wheels 120 installed at the four corners of the bottom of the base 110, and a gantry 130 installed on the top of the base 110. The universal wheels 120 are equipped with a self-locking mechanism. The two sides and the top of the gantry 130 are provided with scale lines. Further, the base 110 is used to carry the gantry 130, the universal wheels 120 are used to facilitate the movement of the equipment, and the gantry 130 is used to carry the positioning assembly 200.

[0038] The positioning assembly 200 includes a transverse mounting frame 210 mounted on the top of the gantry 130, a transverse screw rod 220 mounted between the transverse mounting frames 210, a first motor 230 mounted on one side of the gantry 130 and having an output end connected to the transverse screw rod 220, a first slider 240 mounted on the surface of the transverse screw rod 220, a longitudinal mounting frame 250 mounted at the bottom of the first slider 240, a longitudinal screw rod 260 mounted between the longitudinal mounting frames 250, a second motor 270 mounted at the bottom of the longitudinal mounting frame 250 and having an output end connected to the longitudinal screw rod 260, a second slider 280 mounted on the surface of the longitudinal screw rod 260, a jacket 290 mounted on the front surface of the second slider 280, and clamping mechanisms 291 mounted on both sides of the jacket 290. A guide rod is installed between the transverse mounting frame 210 and the longitudinal mounting frame 250, and matching guide holes are opened on the first slider 240 and the second slider 280. The clamping mechanism 291 includes a threaded sleeve, a threaded rod installed in the inner cavity of the threaded sleeve, a handwheel installed at one end of the threaded rod, and a clamping plate installed at the other end of the threaded rod. A rotating handle is installed on the surface of the handwheel, and the clamping plate is connected to the threaded rod through a rotating sleeve, and the clamping plate is L-shaped. Further, the transverse mounting frame 210, the transverse screw rod 220, the first motor 230 and the first slider 240 are used to achieve left and right positioning, the longitudinal mounting frame 250, the longitudinal screw rod 260, the second motor 270 and the second slider 280 are used to achieve up and down positioning, and the clamping sleeve 290 and the clamping mechanism 291 are used for clamping and fixing;

[0039] The cooling and slag removal assembly 300 includes a support plate 310 installed on one side of the top of the base 110, a negative pressure fan 320 installed on the bottom of the support plate 310, a slag suction port 330 installed on the top of the support plate 310 and connected to the negative pressure fan 320, a driving pulley 340 installed on the wheel shaft of the negative pressure fan 320, a mounting plate 350 installed on one side of the gantry 130, a cooling fan 360 installed on one side of the mounting plate 350, a cold air port 370 installed on the front surface of the mounting plate 350 and connected to the cooling fan 360, a driven pulley 380 installed on the wheel shaft of the cooling fan 360, a V-belt 390 installed on the surfaces of the driven pulley 380 and the driving pulley 340, and the slag suction port 330. 0 is located directly below the jacket 290, the output end of the negative pressure fan 320 is connected to the collection box through a pipeline, and a pipe laying groove matching the cold air outlet 370 is opened on the mounting plate 350. Further, the support plate 310 is used to carry the negative pressure fan 320, the negative pressure fan 320 provides slag suction power, the slag suction port 330 is used to absorb welding slag, the active pulley 340 is used to drive the driven pulley 380 to rotate, the mounting plate 350 is used to carry the cooling fan 360, the cooling fan 360 is used to provide cooling power, the cold air outlet 370 is used for blowing cooling, the driven pulley 380 is used to drive the cooling fan 360 to work, and the V-belt 390 is used to connect the active pulley 340 and the driven pulley 380.

[0040] Working principle: During the use of the present invention, left and right positioning is achieved through the cooperation of the horizontal mounting frame 210, the horizontal screw rod 220, the first motor 230 and the first slider 240, and up and down positioning is achieved through the cooperation of the longitudinal mounting frame 250, the longitudinal screw rod 260, the second motor 270 and the second slider 280, which helps to improve installation efficiency, improve product quality and reduce errors; in addition, through the cooperation of the negative pressure fan 320 and the slag suction port 330, the welding slag can be absorbed and removed, and at the same time, the negative pressure fan 320 drives the active pulley 340 to rotate while the negative pressure fan 320 is working. The active pulley 340 drives the driven pulley 380 to rotate through the V-belt 390, and the driven pulley 380 drives the cooling fan 360 to work. The cooling fan 360 cooperates with the cold air port 370 to quickly cool the welding position, further improving the processing efficiency and quality.

[0041] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A positioning tool for a forklift mast lower crossbeam assembly, characterized in that: include: The frame (100) comprises a base (110), universal wheels (120) arranged at four corners of the bottom of the base (110), and a gantry (130) arranged at the top of the base (110); The positioning assembly (200) comprises a transverse mounting frame (210) arranged at the top of the gantry (130), a transverse screw rod (220) arranged between the transverse mounting frames (210), a first motor (230) arranged at one side of the gantry (130) and having an output end connected to the transverse screw rod (220), a first slider (240) arranged on the surface of the transverse screw rod (220), a longitudinal mounting frame (250) arranged at the bottom of the first slider (240), a longitudinal screw rod (260) arranged between the longitudinal mounting frames (250), a second motor (270) arranged at the bottom of the longitudinal mounting frame (250) and having an output end connected to the longitudinal screw rod (260), a second slider (280) arranged on the surface of the longitudinal screw rod (260), a jacket (290) arranged on the front surface of the second slider (280), and a clamping mechanism (291) arranged on both sides of the jacket (290); A cooling and slag removal assembly (300) comprises a support plate (310) arranged on one side of the top of a base (110), a negative pressure fan (320) arranged at the bottom of the support plate (310), a slag suction port (330) arranged at the top of the support plate (310) and connected to the negative pressure fan (320), a driving pulley (340) arranged on the wheel shaft of the negative pressure fan (320), a mounting plate (350) arranged on one side of a gantry (130), a cooling fan (360) arranged on one side of the mounting plate (350), a cold air port (370) arranged on the front surface of the mounting plate (350) and connected to the cooling fan (360), a driven pulley (380) arranged on the wheel shaft of the cooling fan (360), and a V-belt (390) arranged on the surfaces of the driven pulley (380) and the driving pulley (340).

2. The positioning tool for the lower crossbeam assembly of a forklift mast according to claim 1, characterized in that: The universal wheel (120) is provided with a self-locking mechanism.

3. The positioning tool for the lower crossbeam assembly of a forklift mast according to claim 1, characterized in that: Both sides and the top of the gantry (130) are provided with scale lines.

4. The positioning tool for the lower crossbeam assembly of a forklift mast according to claim 1, characterized in that: A guide rod is provided between the transverse mounting frame (210) and the longitudinal mounting frame (250), and matching guide holes are provided on the first sliding block (240) and the second sliding block (280).

5. The positioning tool for the lower crossbeam assembly of a forklift mast according to claim 1, characterized in that: The clamping mechanism (291) comprises a threaded sleeve, a threaded rod arranged in the inner cavity of the threaded sleeve, a hand wheel arranged at one end of the threaded rod, and a clamping plate arranged at the other end of the threaded rod.

6. The positioning tool for the lower crossbeam assembly of a forklift mast according to claim 4, characterized in that: A rotating handle is arranged on the surface of the hand wheel, a clamping plate is connected with the threaded rod through a rotating sleeve, and the clamping plate is arranged in an L shape.

7. The positioning tool for the lower crossbeam assembly of a forklift mast according to claim 1, characterized in that: The slag suction port (330) is located directly below the jacket (290), and the output end of the negative pressure fan (320) is connected to a collection box via a pipeline.

8. The positioning tool for the lower crossbeam assembly of a forklift mast according to claim 1, characterized in that: The mounting plate (350) is provided with a pipe laying groove matching with the cold air outlet (370).

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