Assembling and welding positioning tool for supporting seat of outer portal frame of forklift

Abstract

The utility model discloses an assembling and welding positioning tool for a supporting seat of an outer portal frame of a forklift. The positioning tool comprises a base and two positioning shaft telescopic pieces. A positioning base is arranged in the middle of the base; the positioning shaft telescopic piece comprises a positioning bracket, a telescopic cylinder, a positioning shaft and an end cover; the positioning support is assembled on the base based on the sliding rail mechanism. The telescopic cylinder is assembled on the positioning support, the telescopic end of the telescopic cylinder faces the positioning base, the telescopic end of the telescopic cylinder and the positioning base are fixed together, and the telescopic direction of the telescopic cylinder is consistent with the sliding guide direction of the sliding rail mechanism; the positioning shaft is positioned on the outward side of the positioning bracket; the end cover is arranged on the end face, facing the outward side, of the positioning shaft. According to the positioning tool, accurate positioning and welding of the supporting seat on the outer portal can be achieved, the positioning and welding requirements specified by the manufacturing process are met, excessive manual participation is not needed, and the working intensity is reduced.

Description

Technical Field

[0001] The utility model relates to a forklift welding tool, in particular to a forklift outer door frame support seat assembly welding positioning tool. Background Art

[0002] See also Figure 1 In the current forklift, a support seat 7 for connecting with the drive axle is welded on the outer mast 6, and the support seat 7 plays an important role in supporting and limiting the rotation of the entire mast for lifting, forward and backward tilting. The welding position of the support seat 7 on the outer mast 6 is very important and needs to be accurately positioned before welding can be carried out.

[0003] The current problem is that the operation process of "positioning and welding the support seat 7 on the outer door frame 6" is realized manually. Specifically, the operator first places two support seats 7 on the outer door frame 6, lifts the dedicated support seat positioning shaft onto the tooling symmetrical positioning frame (not shown in the figure), and then places the support seat 7 on the positioning outer circle of the support seat positioning shaft, close to the positioning end face, uses a dedicated support seat end cover to lock the support seat 7 on the support seat positioning shaft, and then welds the support seat 7. The entire operation process is very cumbersome, resulting in low work efficiency. Summary of the invention

[0004] The purpose of the utility model is to provide a forklift outer door frame support seat assembly welding positioning tool, which can realize the precise positioning welding of the support seat on the outer door frame, meet the positioning welding requirements specified in the manufacturing process, and do not require excessive manual participation, thereby reducing the work intensity of the operators and improving work efficiency.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] A forklift outer door frame support seat assembly welding positioning tool, the positioning tool comprises a base and two positioning shaft telescopic parts; a positioning base is arranged in the middle position on the base; the two positioning shaft telescopic parts are arranged on the base, and the two positioning shaft telescopic parts are respectively located on both sides of the positioning base; the positioning shaft telescopic part comprises a positioning bracket, a telescopic cylinder, a positioning shaft and an end cover; the positioning bracket is assembled on the base based on a slide rail mechanism; the telescopic cylinder is assembled on the positioning bracket, the telescopic end of the telescopic cylinder faces the positioning base, the telescopic end of the telescopic cylinder is fixed together with the positioning base, and the telescopic direction of the telescopic cylinder is consistent with the sliding guide direction of the slide rail mechanism; the positioning shaft is fixed on the positioning bracket, and the positioning shaft is located on the outward side of the positioning bracket; the end cover is arranged at the end face of the positioning shaft facing the outward side; for each positioning shaft telescopic part, an ejection limit mechanism is arranged between the positioning shaft telescopic part and the base to limit the position of the positioning shaft telescopic part moving toward the outward side.

[0007] Furthermore, the positioning bracket is assembled on the base based on a slide rail mechanism, and its specific structural form is: two slide rails are arranged on the base, and two sliders corresponding to the two slide rails are arranged at the bottom of the positioning bracket, and the two sliders are respectively assembled with the two slide rails.

[0008] Furthermore, the specific structural form of the ejection limit mechanism is: a limit plate is provided at a position of the positioning bracket close to the base, and a positioning block is provided at a position of the base close to the positioning bracket, and the positioning block is located on the outward side of the limit plate, and the positioning block can prevent the limit plate and the positioning bracket where it is located from moving toward the outward side.

[0009] Furthermore, the positioning block is provided with an adjusting bolt, and the adjusting bolt is arranged on a side of the positioning block facing the limiting plate.

[0010] Furthermore, the telescopic cylinder is a pneumatic telescopic cylinder, an electric telescopic cylinder or a hydraulic telescopic cylinder.

[0011] Compared with the prior art, the positioning tool of the utility model has the following beneficial effects:

[0012] The support seat is assembled on the positioning shaft, and the end cover is used to lock the support seat on the positioning shaft, and then the telescopic part of the positioning shaft is controlled to extend to the positioning position, so that the support seat can be conveniently positioned on the outer door frame, and then welding is performed, thereby realizing precise positioning welding of the support seat on the outer door frame, meeting the positioning welding requirements specified in the manufacturing process, and, during the implementation of positioning welding, the operation process of the positioning tooling is simple and convenient, without excessive manual participation, thereby reducing the work intensity of the operators and greatly improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the positioning welding of the support seat on the outer door frame;

[0014] Figure 2 This is a schematic diagram of the structure of the forklift outer door frame support seat assembly welding positioning tooling of the utility model. Figure 2 It is a front view;

[0015] Figure 3 Based on Figure 2 Left view of

[0016] Figure 4 Based on Figure 2 A top view of

[0017] Figure 5 for Figure 3 The section view indicated by arrow A in the middle needs to be turned 90 degrees after the section;

[0018] Figure 6It is a schematic diagram of using the positioning tool of the utility model to perform positioning welding on a support seat. DETAILED DESCRIPTION

[0019] The utility model is further described below with specific embodiments:

[0020] This embodiment provides a forklift outer mast support seat assembly welding positioning tool, which is used to achieve accurate positioning welding of the support seat 7 on the outer mast 6 to meet the positioning welding requirements specified in the manufacturing process.

[0021] See also Figures 2 to 4 The positioning tool of this embodiment includes a base 1 and two positioning shaft telescopic parts 3.

[0022] A vertical positioning base 9 is fixedly provided in the middle of the base 1, and the positioning base 9 is used to connect the telescopic rod of the telescopic cylinder 37 (see the following description for details). The two positioning shaft telescopic parts 3 are both provided on the base 1, and the two positioning shaft telescopic parts 3 are respectively located on both sides of the positioning base 9. It should be noted that the two positioning shaft telescopic parts 3 are both assembled on the base 1 based on the slide rail mechanism.

[0023] As for a single positioning shaft telescopic member 3 , it is a combined structural member, which is mainly composed of a positioning bracket 34 , a telescopic cylinder 37 , a positioning shaft 35 and an end cover 36 .

[0024] The previously mentioned “two positioning shaft telescopic parts 3 are both assembled on the base 1 based on the slide rail mechanism” actually means that the bottom of the positioning bracket 34 is assembled on the base 1 based on the slide rail mechanism.

[0025] Specifically, two slide rails 2 are arranged on the base 1, and two sliders 33 corresponding to the two slide rails 2 are arranged at the bottom of the positioning bracket 34. The two sliders 33 are respectively assembled with the two slide rails 2, thus forming the "slide rail mechanism" mentioned above.

[0026] For the convenience of description, the side of the positioning bracket 34 facing the positioning base 9 is referred to as the “inward side”, and the side of the positioning bracket 34 facing away from the positioning base 9 is referred to as the “outward side”.

[0027] From a macroscopic perspective, in this embodiment, the "inward side" is defined as: the side close to the middle position of the base 1 in the sliding guide direction along the slide rail mechanism is called the "inward side"; the "outward side" is defined as: the side away from the middle position of the base 1 in the sliding guide direction along the slide rail mechanism is called the "outward side".

[0028] The telescopic cylinder 37 is assembled in the middle of the positioning bracket 34 (the cylinder body of the telescopic cylinder 37 is assembled on the positioning bracket 34), the telescopic direction of the telescopic cylinder 37 is consistent with the sliding guide direction of the slide rail mechanism, and the telescopic end of the telescopic cylinder 37 faces the inner side of the positioning bracket 34, that is, toward the positioning base 9, and the telescopic end of the telescopic cylinder 37 is fixedly mounted on the positioning base 9 on the base 1. In this way, as long as the telescopic cylinder 37 performs a telescopic action, it can drive the positioning bracket 34, or drive the entire positioning shaft telescopic member 3, to reciprocate along the sliding guide direction of the slide rail mechanism.

[0029] It should be noted that, since the positioning base 9 is fixedly arranged on the base 1, it can be said that the telescopic end of the telescopic cylinder 37 is fixedly connected to the base 1 through the positioning base 9, or in other words, the telescopic end of the telescopic cylinder 37 is fixed based on the base 1. When the positioning shaft telescopic member 3 reciprocates along the sliding guide direction of the slide rail mechanism, the positioning shaft telescopic member 3 can approach or move away from the positioning base 9.

[0030] The positioning shaft 35 is also fixedly mounted on the positioning bracket 34, and the positioning shaft 35 is fixedly mounted on the outward side of the positioning bracket 34, and the central axis of the positioning shaft 35 is coaxial with the central axis of the telescopic cylinder 37. In this way, the telescopic action of the telescopic cylinder 37 can make the positioning shaft 35 based on the positioning bracket 34 perform the actions of "pushing outward and sideways" and "retracting inward and sideways".

[0031] The end cover 36 is essentially the “dedicated support seat end cover” mentioned in the background technology, and its configuration is semicircular arc-shaped, which is consistent with the existing support seat end cover. The end cover 36 is provided with bolts for fastening the support seat 7.

[0032] The end cap 36 is welded to the end surface of the positioning shaft 35 facing outward. The combination of the positioning shaft 35 and the end cap 36 is substantially equivalent to the combination of the "dedicated support seat positioning shaft" and the "dedicated support seat end cap" mentioned in the background technology.

[0033] In the positioning fixture of this embodiment, the end cover 36 is used to lock the support seat 7 as the positioning welding object on the positioning shaft 35, so as to achieve accurate positioning and locking of the inner hole and end surface of the support seat 7.

[0034] It should be noted that, on the base 1, the two positioning shaft telescopic parts 3 are respectively arranged on both sides of the positioning base 9, that is, the two positioning shaft telescopic parts 3 are arranged across the positioning base 9. More specifically, the two positioning shaft telescopic parts 3 are placed back to back across the positioning base 9. When the telescopic cylinders 37 of the two positioning shaft telescopic parts 3 simultaneously extend, the two positioning shaft telescopic parts 3 move toward the outward side on both sides of the positioning base 9 at the same time, and the two positioning shaft telescopic parts 3 move away from each other based on the positioning base 9; and when the telescopic cylinders 37 of the two positioning shaft telescopic parts 3 simultaneously retract, the two positioning shaft telescopic parts 3 move toward the inward side on both sides of the positioning base 9 at the same time, and the two positioning shaft telescopic parts 3 move closer to each other based on the positioning base 9.

[0035] In addition, in order to achieve accurate positioning of the support seat 7 on the outer door frame 6, a limiting mechanism is also provided for the positioning shaft telescopic member 3. For the convenience of subsequent description, the limiting mechanism is referred to as an "ejection limiting mechanism". The ejection limiting mechanism can limit the position of the positioning shaft telescopic member 3 moving toward the outward side, thereby achieving accurate positioning of the support seat 7 on the outer door frame 6.

[0036] See also Figure 5 Specifically, the specific implementation structure of the ejection limit mechanism is:

[0037] A limiting plate 38 is provided at a portion of the positioning bracket 34 close to the base 1, and a positioning block 11 is provided at a portion of the base 1 close to the positioning bracket 34, and the positioning block 11 is located on a side of the limiting plate 38 away from the positioning base 9, or in other words, the positioning block 11 is located on the outward side of the limiting plate 38. The positioning block 11 actually blocks the limiting plate 38 and the positioning bracket 34 where it is located from moving toward the outward side. When the entire positioning shaft telescopic member 3 moves toward the outward side, the positioning block 11 can block the limiting plate 38, thereby blocking the entire positioning shaft telescopic member 3 from continuing to move toward the outward side. In other words, the positioning block 11 can limit the position of the positioning shaft telescopic member 3 moving toward the outward side, thereby achieving a positioning effect.

[0038] In addition, an adjusting bolt 111 is provided on the positioning block 11, and the adjusting bolt 111 is provided on the side of the positioning block 11 facing the limit plate 38, so that the "positioning position of the positioning shaft telescopic member 3 moving toward the outward side" can be adjusted.

[0039] For the convenience of description, the limited position where the positioning block 11 moves toward the outward side with respect to the positioning shaft telescopic member 3 is referred to as a “positioning position”.

[0040] See also Figure 6The positioning tool of this embodiment is used to position and weld the two support seats 7 on the outer door frame 6, and the specific process is as follows:

[0041] It should be noted that the specific use of the positioning tooling of this embodiment needs to be implemented based on a base plate 8, on which bolt mounting holes dedicated to installing the tooling are provided, and a clamping component 81 dedicated to fixing the outer door frame 6 is also provided. In order to facilitate the installation of the positioning tooling on the base plate 8, bolt mounting holes are also provided on the base 1 of the positioning tooling, and the bolt mounting holes match the bolt mounting holes provided on the base plate 8.

[0042] The positioning fixture is installed on the base plate 8 by bolt-fastening, the outer door frame 6 is installed on the clamping component 81, the two support seats 7 are respectively installed on the positioning shafts 35 of the two positioning shaft telescopic parts 3, and the end cover 36 is used to lock the support seat 7 on the positioning shaft 35, just as mentioned in the background technology "use a special support seat end cover to lock the support seat 7 on the support seat positioning shaft".

[0043] The telescopic cylinder 37 that controls the two positioning shaft telescopic parts 3 to extend, thereby pushing the two positioning shaft telescopic parts 3 to move outward until the two positioning shaft telescopic parts 3 reach the positioning position (the position defined by the limit mechanism). At this time, the positioning positions of the two support seats 7 on the outer door frame 6 meet the requirements of welding positioning, and then the welding operation is performed to weld the two support seats 7 to the outer door frame 6.

[0044] After welding is completed, the end cover 36 is removed from the support seat 7, and then the telescopic cylinders 37 of the two positioning shaft telescopic members 3 are controlled to perform a contraction action, thereby pulling the two positioning shaft telescopic members 3 to move inward, until the two positioning shaft telescopic members 3 completely avoid the welded combination of the outer door frame 6 and the support seat 7, and the clamping member 81 fixing the outer door frame 6 is also released. In this way, the welded combination of the outer door frame 6 and the support seat 7 can be conveniently lifted away from the positioning tooling.

[0045] It should be noted that, in the present embodiment, the telescopic cylinder 37 is a pneumatic telescopic cylinder. In other embodiments, other types of telescopic cylinders may also be used, such as an electric telescopic cylinder or a hydraulic telescopic cylinder.

[0046] The positioning tooling of the present embodiment has the following advantages: two positioning shaft telescopic parts 3 are provided in the positioning tooling of the present embodiment; the positioning shaft telescopic parts 3 can extend and retract based on the telescopic cylinder 37, and are also provided with an ejection limit mechanism; the positioning shaft telescopic parts 3 are also provided with a positioning shaft 35 and an end cover 36 for assembling the support seat 7; the support seat 7 is assembled on the positioning shaft 35, and the support seat 7 is locked on the positioning shaft 35 by the end cover 36; and then the positioning shaft telescopic parts 3 are controlled to extend to the positioning position, so that the support seat 7 can be conveniently positioned on the outer door frame 6, and then welding is performed, thereby realizing precise positioning welding of the support seat 7 on the outer door frame 6, meeting the positioning welding requirements specified in the manufacturing process, and, during the implementation of the positioning welding, the operation process of the positioning tooling is simple and convenient, without excessive manual participation, thereby reducing the work intensity of the operators and greatly improving the work efficiency.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A forklift outer mast support seat assembly welding positioning tool, characterized in that: The positioning tool comprises a base (1) and two positioning shaft telescopic parts (3); A positioning base (9) is provided at the middle position of the base (1); The two positioning shaft telescopic parts (3) are arranged on the base (1), and the two positioning shaft telescopic parts (3) are respectively located on two sides of the positioning base (9); The positioning shaft telescopic member (3) comprises a positioning bracket (34), a telescopic cylinder (37), a positioning shaft (35) and an end cover (36); The positioning bracket (34) is assembled on the base (1) based on a slide rail mechanism; The telescopic cylinder (37) is assembled on the positioning bracket (34), the telescopic end of the telescopic cylinder (37) faces the positioning base (9), the telescopic end of the telescopic cylinder (37) is fixed to the positioning base (9), and the telescopic direction of the telescopic cylinder (37) is consistent with the sliding guide direction of the slide rail mechanism; The positioning shaft (35) is fixed on the positioning bracket (34), and the positioning shaft (35) is located on the outward side of the positioning bracket (34); The end cover (36) is arranged on the end surface of the positioning shaft (35) facing outward; For each positioning shaft telescopic component (3), an ejection limiting mechanism is provided between the positioning shaft telescopic component (3) and the base (1) to limit the position of the positioning shaft telescopic component (3) moving toward the outward side.

2. According to claim 1, the forklift outer mast support seat assembly welding positioning tool is characterized by: The positioning bracket (34) is assembled on the base (1) based on a slide rail mechanism, and its specific structural form is: two slide rails (2) are arranged on the base (1), and two sliders (33) corresponding to the two slide rails (2) are arranged at the bottom of the positioning bracket (34), and the two sliders (33) are respectively assembled with the two slide rails (2).

3. The forklift outer mast support seat assembly welding and positioning tooling according to claim 1 is characterized by: The specific structural form of the ejection limiting mechanism is as follows: a limiting plate (38) is arranged at a position of the positioning bracket (34) close to the base (1), and a positioning block (11) is arranged at a position of the base (1) close to the positioning bracket (34); the positioning block (11) is located on the outward side of the limiting plate (38), and the positioning block (11) can prevent the limiting plate (38) and the positioning bracket (34) on which it is located from moving toward the outward side.

4. The forklift outer mast support seat assembly welding and positioning tooling according to claim 3 is characterized by: The positioning block (11) is provided with an adjusting bolt (111), and the adjusting bolt (111) is arranged on a side of the positioning block (11) facing the limiting plate (38).

5. The forklift outer mast support seat assembly welding and positioning tool according to claim 1, characterized in that: The telescopic cylinder (37) is a pneumatic telescopic cylinder, an electric telescopic cylinder or a hydraulic telescopic cylinder.

Images