A positioning connection mechanism for an internal combustion forklift frame

Abstract

The present invention discloses a positioning connection mechanism for an internal combustion forklift frame, the positioning connection mechanism is used for the positioning connection between the forklift frame and the welding positioner; the positioning connection mechanism comprises a longitudinally arranged support assembly, a transversely arranged translation assembly on the front of the support assembly, and a top tightening frame assembly installed on the front of the translation assembly. The entire positioning connection mechanism of the present invention has a compact structure, and the opening size between the two top tightening frame assemblies of the positioning connection mechanism can be adjusted by the translation assembly, which meets the positioning requirements of different opening sizes of the front axle supports of the forklift frames of different internal combustion forklifts, and has a high degree of flexibility; and the guiding installation between the positioning pin hole and the positioning hole can be realized by the guide plate, which meets the rapid positioning of the 5-10 ton forklift frame of the internal combustion forklift, greatly improves the welding efficiency of the forklift frame, and reduces the work intensity of the staff.

Description

Technical Field

[0001] The invention relates to the technical field of forklifts, in particular to a positioning connection mechanism for an internal combustion forklift frame. Background Art

[0002] There are many types of internal combustion forklift frames depending on the tonnage of the forklift. Different types of forklift frames have different internal opening sizes of the front axle supports. During the welding process of the forklift frame, a set of mechanisms is required to install the forklift frame on the mechanism, which is installed on the welding positioner. During welding, the mechanism flips with the positioner to change the position of the forklift frame installed on the mechanism to complete the welding.

[0003] The forklift frame generally uses the hole of the front axle support as the positioning and installation hole. The existing forklift frame welding flipping mechanism adopts a conversion device. When in use, the conversion device is first pried tightly with the opening in the front axle support of the frame, and then the conversion device is connected to the flipping and positioning mechanism. When using the conversion device, it has many operating actions, takes a long time, and has high labor intensity for manual operation. In addition, multiple sets of conversion devices are required to complete the prying of different types of forklift frames, which occupies a large area of ​​the workshop and requires more manpower and material resources. Summary of the invention

[0004] The object of the present invention is to provide a positioning and connecting mechanism for an internal combustion forklift frame to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A positioning connection mechanism for an internal combustion forklift frame, the positioning connection mechanism is used for positioning connection between the forklift frame and a welding positioner; the positioning connection mechanism comprises a longitudinally arranged support assembly, a transversely arranged translation assembly on the front of the support assembly, and a tightening frame assembly installed on the front of the translation assembly;

[0007] Two translation slide rails are arranged horizontally one above and one below on the front side of the support assembly;

[0008] The translation components are arranged in pairs, and the two translation components move along the two translation rails to achieve the two translation components moving closer to each other or farther away from each other;

[0009] The jacking frame assembly moves along with the translation assembly to achieve a positioning connection between the jacking frame assembly and the forklift frame.

[0010] As a further solution of the present invention: the support assembly is a three-dimensional frame structure formed by welding plates;

[0011] The support assembly includes a longitudinally placed support plate, support side plates longitudinally arranged at both ends of the front side of the support plate, and a support transverse plate connecting the two support side plates;

[0012] Two supporting transverse plates are arranged one above and one below, and two ends of the supporting transverse plates are respectively fixedly connected to the inner side surfaces of the two supporting side plates.

[0013] As a further solution of the present invention: the support plate is provided with one or more weight-reducing holes;

[0014] The weight-reducing hole is a quadrilateral through hole or a circular through hole.

[0015] As a further solution of the present invention: the translation assembly includes a laterally arranged screw rod, a translation nut screwed on the screw rod, and a translation plate fixedly connected to the translation nut;

[0016] The two ends of the screw rod extend out of the middle parts of the two supporting side plates respectively, and the two ends of the screw rod are respectively connected to the regulators located on the outer sides of the supporting side plates.

[0017] As a further solution of the present invention: a cylindrical boss is fixedly provided in the middle of the translation nut, and the translation nut is connected to the translation plate through the cylindrical boss.

[0018] As a further solution of the present invention: a connecting hole for mounting the cylindrical boss is provided in the middle of the translation plate, and circular holes are further provided on the translation plate at both sides of the connecting hole;

[0019] Slide blocks are arranged one above and one below on the back side of the translation plate, and the slide blocks are slidably connected with the translation rail.

[0020] As a further solution of the present invention: the gap size between the two jacking frames is smaller than the gap size between the front axle supports of the forklift frame.

[0021] As a further solution of the present invention: the jacking frame assembly includes a jacking frame body positioned and connected to the forklift frame, a guide plate for guiding the forklift frame to be connected to the jacking frame body, and a mounting plate connected to the translation plate through a connecting piece.

[0022] As a further solution of the present invention: the main body of the jacking frame is an arc-shaped three-dimensional structure;

[0023] An arc-shaped plate is fixedly arranged on the outer side of the tightening frame body, and a through positioning pin hole and a locking threaded hole are opened on the arc-shaped plate and the tightening frame body;

[0024] The positioning pin hole corresponds to the positioning hole on the front axle support of the forklift frame.

[0025] As a further solution of the present invention: the guide plate is an arc-shaped three-dimensional structure with a U-shaped groove, and the arc-shaped outer contour of the guide plate matches the arc-shaped contour of the front end of the front axle support of the forklift frame.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] (1) The entire positioning and connecting mechanism has a compact structure, and the opening size between the two top tightening frame components of the positioning and connecting mechanism can be adjusted through the translation component, which meets the positioning requirements of different opening sizes of the front axle supports of the forklift frames of different internal combustion forklifts. It has a high degree of flexibility and a wide range of applications. The guide plate can be used to achieve the guide installation between the positioning pin hole and the positioning hole, which meets the requirements of the rapid positioning of the 5-10 ton forklift frame of the internal combustion forklift, facilitates the subsequent welding operation, is easy to operate, and takes less time, which greatly improves the welding efficiency of the forklift frame and reduces the work intensity of the staff.

[0028] (2) When the positioning connection mechanism is used, no other auxiliary tooling is required. It is only necessary to adjust the gap size between the two top tightening frame components by translating the components to meet the gap size of the front axle support of the forklift frame. Compared with the traditional method, the floor space occupied by other conversion devices is reduced to a certain extent, and the investment of manpower and material resources is greatly reduced;

[0029] (3) When adjusting the gap size between the two jacking frame assemblies, it is only necessary to rotate the screw rod to drive the translation nut screwed on the screw rod to move, and then drive the translation plate connected to the translation nut to move along the translation slide rail. By setting a slider that cooperates with the translation slide rail on the back of the translation plate, the stability of the translation plate movement process can be improved, thereby achieving rapid and accurate positioning between the forklift frame and the jacking frame assembly, which is safe and reliable to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the positioning connection mechanism of the present invention;

[0031] Figure 2 It is a schematic diagram of the structure of the support assembly and the translation assembly of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of the jacking frame assembly of the present invention when the guide plate is removed;

[0033] Figure 4 It is a structural schematic diagram of the guide plate of the present invention;

[0034] Figure 5 This is a diagram showing the use status of the positioning connection mechanism of the present invention.

[0035] In the figure:

[0036] 1-support assembly, 11-translational slide rail, 12-support plate, 13-support side plate, 14-support cross plate, 101-weight reduction hole;

[0037] 2-translation assembly, 21-screw rod, 22-translation nut, 23-translation plate, 24-adjuster, 25-slider, 201-cylindrical boss, 202-circular hole;

[0038] 3-tightening frame assembly, 31-tightening frame body, 32-guide plate, 33-mounting plate, 34-arc plate, 301-positioning pin hole, 302-locking threaded hole;

[0039] 4-Forklift frame. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1 , a positioning and connecting mechanism for an internal combustion forklift frame, the positioning and connecting mechanism is used for the positioning connection between the forklift frame 4 and the welding positioner; the positioning and connecting mechanism includes a longitudinally arranged support assembly 1, a transversely arranged translation assembly 2 on the front of the support assembly, and a top tightening frame assembly 3 installed on the front of the translation assembly; two translation slide rails 11 are transversely arranged one above and one below on the front of the support assembly 1; the translation assemblies 2 are arranged in pairs, and the two translation assemblies 2 move along the two translation slide rails 11 to achieve the mutual approach or distance between the two translation assemblies 2; the top tightening frame assembly 3 moves with the translation assembly 2 to achieve the positioning connection between the top tightening frame assembly 3 and the forklift frame 4.

[0042] When in use, the forklift frame 4 is lifted so that the front axle support of the forklift frame 4 falls on the upper part of the jacking frame assembly 3, and the position of the front axle support of the forklift frame 4 is adjusted until the front axle of the forklift frame 4 reaches the position where the jacking frame assembly 3 is positioned and connected with it; then the two translation assemblies 2 are adjusted so that the two translation assemblies 2 move synchronously along the two translation slide rails 11 arranged one above and one below on the front side of the support assembly 1, so as to achieve the mutual approach between the two translation assemblies 2, and the jacking frame assembly 3 installed on the translation assembly 2 approaches as the two translation assemblies 2 approach each other, until the positioning hole on the jacking frame assembly 3 is connected with the positioning pin hole 301 on the front axle support of the forklift frame 4, and finally the positioning connection between the jacking frame assembly 3 and the forklift frame 4 is achieved by connecting parts such as bolts; when the positioning connection between the forklift frame 4 and the jacking frame assembly 3 is firm, the welding operation of the forklift frame 4 can be carried out.

[0043] The entire positioning and connecting mechanism has a compact structure, and the opening size between the two top tightening frame assemblies 3 of the positioning and connecting mechanism can be adjusted by the translation assembly 2, which meets the positioning requirements of different opening sizes of the front axle supports of different forklift frames 4, has a high degree of flexibility and a wide range of applications; when the positioning and connecting mechanism is used to assist the forklift frame 4 in welding, the opening size between the two top tightening frame assemblies 3 can be directly adjusted by the translation assembly 2, which is easy to operate and takes a short time, thereby improving the welding efficiency of the forklift frame 4 and reducing the work intensity of the staff; after the positioning and connecting mechanism is used, the welding work of the forklift frame 4 only requires the positioning and connecting mechanism, the process is simple, and no other conversion devices are required, which reduces the floor space to a certain extent and greatly reduces the investment in manpower and material resources.

[0044] See also Figure 2 The support assembly 1 is a three-dimensional frame structure formed by welding plates; the support assembly 1 includes a longitudinally placed support plate 12, support side plates 13 longitudinally arranged at both ends of the front side of the support plate, and a support cross plate 14 connecting the two support side plates; two support cross plates 14 are arranged one above and one below, and the two ends of the support cross plates 14 are respectively fixed to the inner side surfaces of the two support side plates 13.

[0045] The support plate 12 is provided with at least one weight-reducing hole 101 ; the weight-reducing hole 101 is a quadrilateral through hole or a circular through hole.

[0046] The three-dimensional support assembly 1 welded by the support plate 12, the support side plate 13 and the support transverse plate 14 has a firm and reliable structure. The support side plate 13 and the support transverse plate 14 are both arranged on the front of the support plate 12, and the two support transverse plates 14 and the two support side plates 13 form a frame structure, which improves the structural firmness of the entire support assembly 1. At the same time, by opening the weight-reducing hole 101 on the support plate 12, materials are saved and the weight of the support plate 12 is reduced.

[0047] See also Figure 2 The translation assembly 2 includes a laterally arranged screw rod 21, a translation nut 22 screwed on the screw rod, and a translation plate 23 fixed to the translation nut; the two ends of the screw rod 21 respectively extend out of the middle part of the two supporting side plates 13, and the two ends of the screw rod 21 are respectively connected to the adjuster 24 located on the outside of the supporting side plates 13.

[0048] A cylindrical boss 201 is fixedly disposed in the middle of the translation nut 22 , and the translation nut 22 is connected to the translation plate 23 via the cylindrical boss 201 .

[0049] A connecting hole for mounting the cylindrical boss 201 is provided in the middle of the translation plate 23, and circular holes 202 are also provided on the translation plate 23 at both lateral sides of the connecting hole; sliders 25 are provided on the back side of the translation plate 23, one above and one below, and the sliders 25 are slidably connected to the translation rail 11.

[0050] During specific assembly, the cylindrical boss 201 provided on the translation nut 22 is inserted into the connection hole provided in the middle of the translation plate 23, and the translation nut 22 is fixedly connected to the translation plate 23; and by providing a circular hole 202 on the translation plate 23, the mass of the translation plate 23 can be reduced, and the situation on the back of the translation plate 23 can be checked through the circular hole 202. Slide blocks 25 are provided on the back of the translation plate 23, and the upper slide block 25 is slidably connected to the translation rail 11 provided on the upper part of the support plate 12, and the lower slide block 25 is slidably connected to the translation rail 11 provided on the lower part of the support plate 12. During specific use, the adjuster 24 is manually adjusted to drive the screw rod 21 to rotate, so that the two translation nuts 22 screwed on the screw rod 21 are close to each other, and then the translation plates 23 connected to the translation nuts 22 are close to each other; and the slider 25 arranged on the back of the translation plate 23 is slidably connected to the translation rail 11 arranged on the support plate 12, ensuring that the two translation plates 23 can slide smoothly along the translation rail 11, thereby achieving smooth approach between the two translation plates 23, thereby improving the stability and safety of the entire two translation plates 23 during use.

[0051] See also Figure 1 and Figure 3 The opening size between the two jacking frames is smaller than the opening size between the front axle supports of the forklift frame 4.

[0052] The jacking frame assembly 3 includes a jacking frame body 31 which is positioned and connected to the forklift frame, a guide plate 32 for guiding the forklift frame to be connected to the jacking frame body, and a mounting plate 33 which is connected to the translation plate through a connecting piece.

[0053] The jacking frame body 31 is an arc-shaped three-dimensional structure; an arc-shaped plate 34 is fixedly provided on the outer side of the jacking frame body 31, and a through positioning pin hole 301 and a locking threaded hole 302 are opened on the arc-shaped plate 34 and the jacking frame body 31; the positioning pin hole 301 corresponds to the positioning hole on the front axle support of the forklift frame 4.

[0054] See also Figure 4 The guide plate 32 is an arc-shaped three-dimensional structure with a U-shaped groove, and the arc-shaped outer contour of the guide plate 32 matches the arc-shaped contour of the front end of the front axle support of the forklift frame 4.

[0055] See also Figure 5 Before the forklift frame 4 is installed, the regulator 24 is manually adjusted to realize the rotation of the lead screw 21 of the translation assembly 2, and the two translation nuts 22 screwed with the lead screw are brought closer to each other, thereby driving the two translation plates 23 connected to the translation nuts 22 to approach each other, so that the two top tightening frame assemblies 3 installed on the translation plates 23 are brought closer to each other, realizing the contraction of the opening size between the two top tightening frame assemblies 3, but the size between the two top tightening frames is smaller than the opening size of the front axle support of the forklift frame 4.

[0056] The forklift frame 4 is lifted again, so that the front axle support of the forklift frame 4 falls on the upper part of the jacking frame body 31, and the front axle support of the forklift frame 4 is guided by the guide plate 32 connected to the jacking frame body 31, so that the front axle support of the forklift frame 4 enters the position connected with the jacking frame body 31, and then the screw rod 21 of the translation assembly 2 is rotated by manually adjusting the adjuster 24, so that the two translation nuts 22 screwed with the screw rod are further brought closer to each other, and then the two translation plates 23 connected to the translation nuts 22 are further driven to approach each other, so that the two jacking frame assemblies 3 installed on the translation plates 23 are brought closer to each other until the positioning holes provided on the arc plate 34 and the jacking frame body 31 are reached. The pin hole 301 is connected to the positioning hole on the front axle support of the forklift frame 4, that is, one end face of the positioning pin hole 301 is in contact with one end face of the positioning hole, and then the positioning pin is used to align the positioning pin hole 301 with the positioning hole, so that the positioning pin passes through the positioning hole on the front axle support of the forklift frame 4 and the positioning pin hole 301 on the tightening frame body 31, thereby achieving the function of supporting the front axle support of the forklift frame 4; then the locking bolt is screwed into the locking threaded hole 302 opened in the arc plate 34 and the tightening frame body 31 to achieve the positioning and locking between the forklift frame 4 and the tightening frame assembly 3; after completing the tightening between the forklift frame 4 and the positioning connection mechanism, the forklift frame 4 can be welded.

[0057] Since there are many types of internal combustion forklifts, and the installation dimensions of the front axle supports of the forklift frame 4 are also very different, the positioning and connecting mechanism can realize the lateral movement of the two top tightening frame assemblies 3 through the translation assembly 2, thereby realizing the flexible adjustment of the opening size between the two top tightening frame assemblies 3, and thereby realizing the flexible adjustment of the different graduation installation dimensions of the front axle supports of the forklift frame 4. Therefore, the positioning and connecting mechanism has strong compatibility. At the same time, the guide installation between the positioning pin hole 301 and the positioning hole can be realized through the guide plate 32, which meets the rapid positioning of the 5-10 ton forklift frame 4 of the internal combustion forklift and is convenient for the subsequent welding operation. In addition, when using this positioning and connecting mechanism, no other auxiliary tooling is required. It is only necessary to use the translation assembly 2 to adjust the gap size between the two top tightening frame assemblies 3 to meet the gap size of the front axle support of the forklift frame 4. Moreover, when adjusting the gap size between the two top tightening frame assemblies 3, it is only necessary to rotate the screw rod 21 to drive the translation nut 22 screwed on the screw rod 21 to move, and then drive the translation plate 23 connected to the translation nut 22 to move along the translation slide rail 11. The operation is simple and the positioning is accurate and fast.

[0058] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0059] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A positioning connection mechanism for an internal combustion forklift frame, the positioning connection mechanism being used for positioning connection between a forklift frame (4) and a welding positioner; characterized in that: The positioning connection mechanism comprises a support assembly (1) arranged longitudinally, a translation assembly (2) arranged transversely on the front of the support assembly, and a tightening frame assembly (3) installed on the front of the translation assembly; Two translation slide rails (11) are arranged laterally one above the other on the front side of the support assembly (1); The translation assemblies (2) are arranged in pairs, and the two translation assemblies (2) move along the two translation slide rails (11) to achieve the two translation assemblies (2) moving closer to each other or farther away from each other; the translation assemblies (2) comprise a transversely arranged screw rod (21), a translation nut (22) screwed onto the screw rod, and a translation plate (23) fixedly connected to the translation nut; The gap size between the two jacking frames is smaller than the gap size between the front axle supports of the forklift frame (4); The jacking frame assembly (3) moves along with the translation assembly (2) to achieve a positioning connection between the jacking frame assembly (3) and the forklift frame (4); The jacking frame assembly (3) comprises a jacking frame body (31) positioned and connected to the forklift frame, a guide plate (32) for guiding the forklift frame to connect with the jacking frame body, and a mounting plate (33) connected to the translation plate via a connecting piece; The jacking frame body (31) is an arc-shaped three-dimensional structure; an arc-shaped plate (34) is fixedly provided on the outer side of the jacking frame body (31), and a through positioning pin hole (301) and a locking threaded hole (302) are provided on the arc-shaped plate (34) and the jacking frame body (31); the positioning pin hole (301) corresponds to a positioning hole on a front axle support of the forklift frame (4); The guide plate (32) is an arc-shaped three-dimensional structure with a U-shaped groove, and the arc-shaped outer contour of the guide plate (32) matches the arc-shaped contour of the front end of the front axle support of the forklift frame (4).

2. The positioning and connecting mechanism for an internal combustion forklift frame according to claim 1, characterized in that: The support assembly (1) is a three-dimensional frame structure formed by welding plates; The support assembly (1) comprises a longitudinally placed support plate (12), support side plates (13) longitudinally arranged at both ends of the front side of the support plate, and a support transverse plate (14) connecting the two support side plates; Two supporting transverse plates (14) are arranged one above the other, and two ends of the supporting transverse plates (14) are respectively fixedly connected to the inner side surfaces of the two supporting side plates (13).

3. The positioning and connecting mechanism for an internal combustion forklift frame according to claim 2, characterized in that: The support plate (12) is provided with one or more weight-reducing holes (101); The weight-reducing hole (101) is a quadrilateral through hole or a circular through hole.

4. The positioning and connecting mechanism for an internal combustion forklift frame according to claim 2, characterized in that: Both ends of the screw rod (21) extend out of the middle of the two supporting side plates (13), and both ends of the screw rod (21) are connected to adjusters (24) located outside the supporting side plates (13).

5. The positioning and connecting mechanism for an internal combustion forklift frame according to claim 4, characterized in that: A cylindrical boss (201) is fixedly provided in the middle of the translation nut (22), and the translation nut (22) is connected to the translation plate (23) via the cylindrical boss (201).

6. The positioning and connecting mechanism for an internal combustion forklift frame according to claim 5, characterized in that: A connecting hole for mounting the cylindrical boss (201) is provided in the middle of the translation plate (23), and circular holes (202) are also provided on the translation plate (23) at both sides of the connecting hole. Slide blocks (25) are arranged one above and one below the back of the translation plate (23), and the slide blocks (25) are slidably connected to the translation rail (11).

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