Forklift fork mounting bracket welding positioning tooling

Abstract

This utility model provides a welding positioning fixture for forklift mounting frames, comprising: a fixture platform; a mounting plate positioning assembly for positioning the fork mounting plate of the fork mounting frame; a pad positioning assembly for positioning the pad of the fork mounting frame; an adjusting cylinder bracket positioning assembly for positioning the adjusting cylinder bracket of the fork mounting frame; a baffle hook positioning assembly for positioning the baffle and hook assembly of the fork mounting frame; a side roller mounting plate positioning assembly for positioning the side roller mounting plate of the fork mounting frame; and a shim block assembly for supporting the fork mounting plate, cross plate, and bottom plate of the fork mounting frame, and for positioning the cross plate, side support plate, and bottom plate of the fork mounting frame. This fixture can improve the welding accuracy and efficiency of fork mounting frames during assembly welding.

Description

Technical Field

[0001] This utility model relates to the field of forklift tooling technology, and in particular to a welding and positioning tooling for a forklift fork mounting bracket. Background Technology

[0002] Fork mounts are a common component on forklifts. For models with adjustable forks, fork mounts are mainly used to connect the adjustable forks and the forks on the forklift.

[0003] Fork mounts are manufactured by welding together various plates. Currently, fork mounts are commonly manufactured using scribing and welding. However, due to the high dimensional accuracy requirements for the installation of the fork mount, the adjustable forks, and the forks themselves, it is difficult to achieve the required dimensional accuracy by manually scribing and welding alone. Furthermore, manual scribing and welding is time-consuming, labor-intensive, and inefficient.

[0004] In view of this, it is necessary to design a welding positioning fixture for forklift fork mounting brackets that can improve welding accuracy and efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a welding and positioning fixture for forklift fork mounting brackets, which aims to solve or at least partially solve the shortcomings of the above-mentioned background technology, and can improve the welding accuracy and efficiency of fork mounting brackets during assembly welding.

[0006] This utility model provides a welding positioning fixture for a forklift fork mounting bracket, used for positioning the forklift fork mounting bracket during welding. The welding positioning fixture for the forklift fork mounting bracket includes:

[0007] Tooling platform;

[0008] A mounting plate positioning assembly is disposed on the upper surface of the tooling platform and is used to position the fork mounting plate of the fork mounting bracket; there are two mounting plate positioning assemblies, which are arranged at intervals relative to each other along a first direction;

[0009] A pad positioning assembly is disposed on the upper surface of the tooling platform for positioning the pad of the fork mounting bracket; there are two pad positioning assemblies, which are arranged at intervals relative to each other along the first direction;

[0010] An adjustable cylinder bracket positioning assembly is disposed on the upper surface of the tooling platform and is used to position the adjustable cylinder mounting bracket of the fork mounting frame.

[0011] A baffle hook positioning assembly is disposed on the upper surface of the tooling platform and is used to position the baffle and hook assembly of the fork mounting bracket;

[0012] A side roller mounting plate positioning assembly is disposed on the upper surface of the tooling platform for positioning the side roller mounting plate of the fork mounting bracket; there are two side roller mounting plate positioning assemblies, which are arranged at intervals relative to each other along the first direction;

[0013] The shim block assembly is disposed on the upper surface of the tooling platform and is used to support the fork mounting plate, cross plate and bottom plate of the fork mounting bracket, and to position the cross plate, side support plate and bottom plate of the fork mounting bracket.

[0014] The mounting plate positioning assembly, the pad positioning assembly, the adjusting cylinder bracket positioning assembly, the baffle hook positioning assembly, and the side roller mounting plate positioning assembly are arranged sequentially along a second direction, which is perpendicular to the first direction.

[0015] Furthermore, the number of the adjusting cylinder bracket positioning components is two, the two adjusting cylinder bracket positioning components are arranged at intervals along the first direction, and the two adjusting cylinder bracket positioning components are staggered along the second direction.

[0016] Furthermore, the upper surface of the tooling platform forms an installation area between the hanging plate positioning assembly, the pad positioning assembly, the adjustable cylinder bracket positioning assembly, the baffle hook positioning assembly, and the side roller mounting plate positioning assembly, and the shim block assembly is disposed within the installation area.

[0017] Furthermore, the mounting plate positioning assembly includes a first base and a triangular positioning block disposed on the first base. The first base is fixedly connected to the tooling platform. The first base is used to support the fork mounting plate, and the triangular positioning block is used to position the first mounting hole on the fork mounting plate.

[0018] Furthermore, the pad positioning assembly includes a second base, a first rotating positioning plate, and a U-shaped clamp. The second base is fixedly connected to the tooling platform, and the first rotating positioning plate is rotatably connected to the second base. The first rotating positioning plate can move relative to the second base along the second direction. The first rotating positioning plate is used to position the pad, and the U-shaped clamp is used to clamp and fix the first rotating positioning plate and the second base.

[0019] Furthermore, the first rotary positioning plate is provided with a stepped portion for positioning the second pin on the pad.

[0020] Furthermore, the positioning assembly of the adjustable cylinder bracket includes a third base, a second rotating positioning plate, and a first positioning pin. The third base is fixedly connected to the tooling platform, one end of the second rotating positioning plate is rotatably connected to the third base, and the first positioning pin is detachably inserted into the other end of the second rotating positioning plate. The first positioning pin and the second rotating positioning plate are used to position the adjustable cylinder mounting bracket.

[0021] Furthermore, the baffle hook positioning assembly includes a fourth base, a third rotating positioning plate, and a stop. The fourth base is fixedly connected to the tooling platform, one end of the third rotating positioning plate is rotatably connected to the fourth base, and the stop is disposed on the side of the other end of the third rotating positioning plate. The third rotating positioning plate is used to position the baffle, and the stop is used to position the hook assembly and the baffle.

[0022] Furthermore, the side roller mounting plate positioning assembly includes a fifth base and a second positioning pin. The fifth base is fixedly connected to the tooling platform, and the second positioning pin is detachably inserted into the fifth base. The fifth base and the second positioning pin are used to position the side roller mounting plate.

[0023] Furthermore, the shim block assembly includes a first shim block, a second shim block, a third shim block, and a fourth shim block arranged sequentially along the second direction, with the third shim block and the fourth shim block arranged adjacent to each other;

[0024] The first shim is used to support the forklift plate, the second and third shims are used to support both ends of the cross plate, and the fourth shim is used to support the base plate. The first and second shims are used to position the side support plate, the second and third shims are used to position the cross plate, and the third and fourth shims are used to position the base plate.

[0025] The forklift fork mounting bracket welding positioning fixture provided by this utility model supports and positions various components of the fork mounting bracket by setting up a hanging plate positioning component, a pad positioning component, an adjustable cylinder bracket positioning component, a baffle hook positioning component, a side roller mounting plate positioning component, and a shim block component, thereby facilitating subsequent welding of the fork mounting bracket, improving welding efficiency and welding accuracy, and enhancing welding quality. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the fork mounting bracket placed on the welding positioning fixture of the forklift fork mounting bracket in an embodiment of this utility model.

[0027] Figure 2 for Figure 1 A structural diagram in another direction.

[0028] Figure 3 This is a schematic diagram of the fork mounting bracket in an embodiment of the present invention.

[0029] Figure 4 for Figure 3 A structural diagram in another direction.

[0030] Figure 5 for Figure 3 A bottom view.

[0031] Figure 6 This is a schematic diagram of the welding positioning fixture for the forklift fork mounting frame in an embodiment of this utility model.

[0032] Figure 7 for Figure 6 A structural diagram in another direction.

[0033] Figure 8 for Figure 6 Top view.

[0034] Figure 9 This is a schematic diagram of the structure of the mounting plate positioning component in an embodiment of this utility model.

[0035] Figure 10 This is a schematic diagram of the pad positioning assembly in an embodiment of the present invention.

[0036] Figure 11 This is a schematic diagram of the positioning assembly of the adjustable cylinder bracket in an embodiment of this utility model.

[0037] Figure 12 This is a schematic diagram of the baffle hook positioning assembly in an embodiment of the present invention.

[0038] Figure 13 This is a schematic diagram of the side roller mounting plate positioning assembly in an embodiment of this utility model.

[0039] Figure 14 This is a schematic diagram of the structure of the first and fourth shims in the embodiments of this utility model.

[0040] Figure 15 This is a schematic diagram of the structure of the second / third shim block in the embodiment of this utility model. Detailed Implementation

[0041] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0042] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and claims of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0043] The directional terms such as "up," "down," "left," "right," "front," "back," "top," and "bottom" (if present) used in the specification and claims of this utility model are defined according to the position of the structures in the drawings and the relative positions of the structures, and are only for the purpose of clarity and convenience in expressing the technical solution. It should be understood that the use of directional terms should not limit the scope of protection claimed in this application.

[0044] like Figures 1 to 15 As shown, this utility model embodiment provides a forklift fork mounting bracket welding positioning fixture 1, which is used for positioning the fork mounting bracket 2 during welding. That is, when welding the fork mounting bracket 2, the various dispersed components of the fork mounting bracket 2 are first positioned and installed on the fixture for pre-assembly, and then the various components are welded to obtain an integral fork mounting bracket 2. Then the fork mounting bracket 2 can be removed from the fixture (that is, the fork mounting bracket 2 is demolded from the fixture).

[0045] To better understand the design logic of the forklift fork mounting bracket welding positioning fixture 1, the structure of the fork mounting bracket 2 is first described in the following overview:

[0046] Specifically, the fork mounting bracket 2 includes a fork hanger 21, a pad 22, an adjustable cylinder mounting bracket 23, a baffle 24, a hook assembly 25, a side roller mounting plate 26, a cross plate 27, a side support plate 28, and a base plate 29. The cross plate 27 is a long strip plate extending along the second direction Y. The fork hanger 21 and the base plate 29 are respectively set at both ends of the cross plate 27 along the second direction Y. The fork hanger 21 and the base plate 29 are both located below the cross plate 27, and the fork hanger 21 and the cross plate 27 are partially overlapped. The base plate 29 is completely overlapped on the lower surface of the cross plate 27. The fork hanger 21 and the base plate 29 are both welded and fixed to the cross plate 27. The fork hanger 21 has two first mounting holes 212 on both sides along the first direction X. A first pin 211 is inserted and fixed into each of the two first mounting holes 212. The first pin 211 is installed into the first mounting hole 212 from top to bottom and is welded to the fork hanger 21. A pad 22 is provided on the fork hanger 21 and abuts against the end of the cross plate 27. The pad 22 has two second mounting holes 222 on both sides along the first direction X. A second pin 221 is inserted and fixed into each of the two second mounting holes 222 and is welded to the pad 22. The pitch adjustment cylinder mounting bracket 23, baffle 24 and hook assembly 25 are spaced apart along the second direction Y on the upper surface of the cross plate 27, with the baffle 24 and hook assembly 25 close to each other. The pitch adjustment cylinder mounting bracket 23, baffle 24 and hook assembly 25 are all welded to the cross plate 27. Side support plates 28 are disposed on opposite sides of the cross plate 27 along the first direction X. The end faces of the side support plates 28 abut against the fork hanger plate 21 and the pad plate 22, and the sides of the side support plates 28 abut against the sides of the cross plate 27. The side support plates 28 are welded and fixed to the fork hanger plate 21, the pad plate 22, and the cross plate 27, respectively. Side roller mounting plates 26 are disposed on one end of the cross plate 27 near the bottom plate 29, and are disposed on opposite sides of the cross plate 27 along the first direction X. The side roller mounting plates 26 are welded and fixed to the cross plate 27. For the specific structure of the fork mounting bracket 2 and the specific functions of each component, please refer to the prior art, which will not be elaborated here.

[0047] The welding positioning fixture 1 for the forklift fork mounting bracket includes:

[0048] Tooling platform 11;

[0049] The mounting plate positioning assembly 12 is fixedly installed on the upper surface of the tooling platform 11 and is used to position the fork mounting plate 21 of the fork mounting bracket 2. There are two mounting plate positioning assemblies 12, which are arranged at intervals along the first direction X. The two mounting plate positioning assemblies 12 are used to position the two sides of the fork mounting plate 21 respectively.

[0050] The pad positioning assembly 13 is fixedly installed on the upper surface of the tooling platform 11 and is used to position the pad 22 of the fork mounting frame 2. There are two pad positioning assemblies 13, which are arranged opposite to each other at a distance along the first direction X. The two pad positioning assemblies 13 are used to position the two sides of the pad 22 respectively.

[0051] The adjustable cylinder bracket positioning assembly 14 is fixedly installed on the upper surface of the tooling platform 11 and is used to position the adjustable cylinder mounting bracket 23 of the fork mounting frame 2.

[0052] The baffle hook positioning assembly 15 is fixedly installed on the upper surface of the tooling platform 11 and is used to position the baffle 24 and hook assembly 25 of the fork mounting frame 2.

[0053] The side roller mounting plate positioning assembly 16 is fixedly installed on the upper surface of the tooling platform 11 and is used to position the side roller mounting plate 26 of the fork mounting frame 2. There are two side roller mounting plate positioning assemblies 16, which are arranged opposite each other at a distance along the first direction X. The two side roller mounting plate positioning assemblies 16 are used to position the side roller mounting plates 26 on both sides respectively.

[0054] The shim block assembly 17 is fixedly installed on the upper surface of the tooling platform 11 and is used to support the fork mounting plate 21, the cross plate 27 and the bottom plate 29 of the fork mounting frame 2, and to position the cross plate 27, the side support plate 28 and the bottom plate 29 of the fork mounting frame 2.

[0055] The mounting plate positioning assembly 12, pad positioning assembly 13, adjusting cylinder bracket positioning assembly 14, baffle hook positioning assembly 15, and side roller mounting plate positioning assembly 16 are sequentially arranged along the second direction Y, which is perpendicular to the first direction X. It should be noted that the mounting plate positioning assembly 12, pad positioning assembly 13, adjusting cylinder bracket positioning assembly 14, baffle hook positioning assembly 15, and side roller mounting plate positioning assembly 16 are not arranged in a straight line along the second direction Y, but are at least partially staggered along the first direction X.

[0056] Furthermore, such as Figures 1 to 8 As shown, in this embodiment, there are two adjustable cylinder bracket positioning components 14. The two adjustable cylinder bracket positioning components 14 are arranged at intervals along the first direction X, and the two adjustable cylinder bracket positioning components 14 are staggered along the second direction Y.

[0057] Specifically, since forklifts generally have two fork mounts 2, which are symmetrical in structure, meaning that the positions of the components of the two fork mounts 2 are completely identical except for the position of the adjusting cylinder mounting bracket 23. Therefore, this application, by setting two adjusting cylinder bracket positioning components 14, enables one set of forklift fork mount welding positioning fixture 1 to be used for positioning and welding of both types of fork mounts 2 (i.e., one type of fork mount 2 will use one adjusting cylinder bracket positioning component 14 during welding, and the other type of fork mount 2 will use the other adjusting cylinder bracket positioning component 14 during welding), thus saving tooling costs.

[0058] Furthermore, such as Figure 8 As shown, in this embodiment, the upper surface of the tooling platform 11 forms an installation area 110 between the hanging plate positioning assembly 12, the pad positioning assembly 13, the adjusting cylinder bracket positioning assembly 14, the baffle hook positioning assembly 15, and the side roller mounting plate positioning assembly 16. The shim block assembly 17 is disposed within the installation area 110, that is, the shim block assembly 17 is disposed between the two hanging plate positioning assemblies 12, the two pad positioning assemblies 13, the two adjusting cylinder bracket positioning assemblies 14, the baffle hook positioning assembly 15, and the two side roller mounting plate positioning assemblies 16.

[0059] Furthermore, such as Figure 6 and Figure 7 As shown, in this embodiment, the tooling platform 11 includes a carrier plate 111 and multiple support legs 112. The hanging plate positioning assembly 12, the pad positioning assembly 13, the adjustable cylinder bracket positioning assembly 14, the baffle hook positioning assembly 15, the side roller mounting plate positioning assembly 16, and the shim block assembly 17 are all fixedly mounted on the upper surface of the carrier plate 111. The multiple support legs 112 are located below the carrier plate 111 and are connected to different positions on the carrier plate 111 to support it. In this embodiment, the carrier plate 111 is a rectangular plate, with the first direction X being the width direction of the carrier plate 111 and the second direction Y being the length direction of the carrier plate 111. There are four support legs 112, which are connected to the four apex positions of the carrier plate 111.

[0060] Furthermore, such as Figures 1 to 7 and Figure 9 As shown, in this embodiment, each mounting plate positioning assembly 12 includes a first base 121 and a triangular positioning block 122 disposed on the first base 121. The first base 121 is fixedly connected to the tooling platform 11. The first base 121 is used to support the fork mounting plate 21 (i.e., the fork mounting plate 21 rests on the first base 121). The triangular positioning block 122 is used to position the first mounting hole 212 on the fork mounting plate 21 (i.e., the triangular positioning block 122 is inserted into the first mounting hole 212).

[0061] Specifically, the first base 121 includes a first mounting plate 1211 and a cylindrical support column 1212. The first mounting plate 1211 is fixedly connected to the tooling platform 11 by bolts. The first mounting plate 1211 has a slotted hole (not labeled in the figure) through which the bolts pass, allowing adjustment of the position of the hanging plate positioning assembly 12. The bottom of the support column 1212 is fixedly connected to the first mounting plate 1211. A triangular positioning block 122 is disposed on the top surface of the support column 1212, and the triangular positioning block 122 and the top of the support column 1212 are positioned and connected by a fixing pin 123 (both the center of the triangular positioning block 122 and the center of the support column 1212 have holes for the fixing pin 123 to be inserted). The triangular positioning block 122 has an equilateral triangular structure, and the diameter of the circumcircle of the triangular positioning block 122 is smaller than the diameter of the support column 1212. When the fork hanger plate 21 is placed on the hanger plate positioning assembly 12, the fork hanger plate 21 rests on the support column 1212, and the triangular positioning block 122 extends into the first mounting hole 212 on the fork hanger plate 21, thereby positioning the fork hanger plate 21. At the same time, since the triangular positioning block 122 has a triangular structure, the triangular positioning block 122 and the inner wall of the first mounting hole 212 are in three-point contact, thereby reducing the contact area between the triangular positioning block 122 and the inner wall of the first mounting hole 212, which facilitates demolding after welding (that is, the fork hanger plate 21 can be separated from the hanger plate positioning assembly 12).

[0062] Furthermore, such as Figures 1 to 7 and Figure 10 As shown, in this embodiment, the pad positioning assembly 13 includes a second base 131, a first rotary positioning plate 132, and a U-shaped clamp 133. The second base 131 is fixedly connected to the tooling platform 11, and the first rotary positioning plate 132 is rotatably connected to the second base 131, and the first rotary positioning plate 132 can move relative to the second base 131 along the second direction Y. The first rotary positioning plate 132 is used to position the pad 22, and the U-shaped clamp 133 is used to clamp and fix the first rotary positioning plate 132 and the second base 131. At the same time, the first rotary positioning plate 132 is provided with a stepped portion 1321 for positioning the second pin 221 on the pad 22.

[0063] Specifically, the second base 131 includes a second mounting plate 1311, two first support plates 1312 spaced apart and opposite to each other, and a first rotating shaft 1314. The second mounting plate 1311 is fixedly connected to the tooling platform 11 by bolts. The bottoms of the two first support plates 1312 are fixedly connected to the second mounting plate 1311. The two ends of the first rotating shaft 1314 are respectively connected to the tops of the two first support plates 1312. The first rotating positioning plate 132 is located between the two first support plates 1312. One end of the first rotating positioning plate 132 is rotatably connected to the first rotating shaft 1314. The step portion 1321 is provided at the other end of the first rotating positioning plate 132. The first rotating positioning plate 132 can rotate around the first rotating shaft 1314, and the first rotating positioning plate 132 can move relative to the first rotating shaft 1314 in the second direction Y. This arrangement not only facilitates the installation and positioning of the pad 22, but also facilitates the demolding of the pad 22. Meanwhile, a first connecting plate 1313 is connected between the two first support plates 1312. The first connecting plate 1313 is located below the first rotating positioning plate 132. The first connecting plate 1313 is provided with a first adjusting bolt 1315. The first adjusting bolt 1315 is threadedly connected to the first connecting plate 1313. By turning the first adjusting bolt 1315, the level of the first rotating positioning plate 132 can be adjusted (that is, the lower surface of the first rotating positioning plate 132 abuts against the top of the first adjusting bolt 1315, and turning the first adjusting bolt 1315 can adjust the height of the top of the first adjusting bolt 1315, thereby adjusting the level of the first rotating positioning plate 132). The U-shaped clamp 133 includes a U-shaped clamp body and an adjusting bolt (not labeled in the figure). The adjusting bolt is threadedly connected to the U-shaped clamp body. The first rotating positioning plate 132 and the first support plate 1312 are clamped between the U-shaped clamp body. By turning the adjusting bolt, the adjusting bolt abuts against the first support plate 1312, thereby fixing the first rotating positioning plate 132 and the first support plate 1312 together.

[0064] During positioning, first tighten the U-shaped clamp 133 to fix the first rotating positioning plate 132 and the first support plate 1312 together, and ensure that the first rotating positioning plate 132 is in a horizontal state. Then, place the pad 22 on the fixture, at which point the side of the pad 22 abuts against the side of the first rotating positioning plate 132, and the second pin 221 on the pad 22 is positioned on the step portion 1321, thereby positioning the pad 22. After welding is completed, loosen and remove the U-shaped clamp 133, then move the first rotating positioning plate 132 away from the pad 22, and then rotate the first rotating positioning plate 132 outward to facilitate demolding.

[0065] Furthermore, such as Figures 1 to 7 and Figure 11As shown, in this embodiment, the adjusting cylinder bracket positioning assembly 14 includes a third base 141, a second rotating positioning plate 142, and a first positioning pin 143. The third base 141 is fixedly connected to the tooling platform 11, one end of the second rotating positioning plate 142 is rotatably connected to the third base 141, and the first positioning pin 143 is detachably inserted into the other end of the second rotating positioning plate 142. The first positioning pin 143 and the second rotating positioning plate 142 are used to position the adjusting cylinder mounting bracket 23. Simultaneously, the two adjusting cylinder bracket positioning assemblies 14 can share a single first positioning pin 143.

[0066] Specifically, the third base 141 includes a third mounting plate 1411, two spaced-apart opposing second support plates 1412, and a second rotating shaft 1413. The third mounting plate 1411 is fixedly connected to the tooling platform 11 by bolts. The bottoms of the two second support plates 1412 are fixedly connected to the third mounting plate 1411. The two ends of the second rotating shaft 1413 are respectively connected to the tops of the two second support plates 1412. A second rotating positioning plate 142 is located between the two second support plates 1412, and one end of the second rotating positioning plate 142 is rotatably connected to the second rotating shaft 1413, allowing the second rotating positioning plate 142 to rotate around the second rotating shaft 1413. Simultaneously, a second connecting plate (not shown) is connected between the two second support plates 1412. The second connecting plate is located below the second rotating positioning plate 142 and is provided with a second adjusting bolt 1415. The second adjusting bolt 1415 is threadedly connected to the second connecting plate, and the levelness of the second rotating positioning plate 142 can be adjusted by screwing the second adjusting bolt 1415. The second support plate 1412 is provided with a first locking bolt 1414, which is threadedly connected to the second support plate 1412. By tightening the first locking bolt 1414, the second rotary positioning plate 142 can be locked to prevent the second rotary positioning plate 142 from wobbling left and right (tightening the first locking bolt 1414 will make it abut against the second rotary positioning plate 142). At the same time, a pad 144 is fixedly provided on the side wall of the second rotary positioning plate 142 away from the second rotating shaft 1413. The pad 144 serves as the mounting bracket 23 for the positioning and adjusting cylinder. Due to the structural and dimensional requirements of the mounting bracket 23 for the adjusting cylinder, the second rotary positioning plate 142 needs to be thickened to ensure the positioning dimensions. The pad 144 is used to increase the thickness of the second rotary positioning plate 142, thereby reducing the weight of the second rotary positioning plate 142 and improving the flipping efficiency. Both the second rotary positioning plate 142 and the pad 144 are provided with holes for the first positioning pin 143 to be inserted through.

[0067] During positioning, the two lugs of the adjusting cylinder mounting bracket 23 contact the sides of the second rotary positioning plate 142 and the side of the pad 144, respectively. Simultaneously, the first positioning pin 143 passes through the holes in the two lugs, thereby positioning the adjusting cylinder mounting bracket 23. After welding, the first positioning pin 143 is removed, and then the second rotary positioning plate 142 is rotated outwards to facilitate demolding.

[0068] Furthermore, such as Figures 1 to 7 and Figure 12 As shown, in this embodiment, the baffle hook positioning assembly 15 includes a fourth base 151, a third rotating positioning plate 152, and a stop 153. The fourth base 151 is fixedly connected to the tooling platform 11. One end of the third rotating positioning plate 152 is rotatably connected to the fourth base 151. The stop 153 is disposed on the side of the other end of the third rotating positioning plate 152. The third rotating positioning plate 152 is used to position the baffle 24, and the stop 153 is used to position the hook assembly 25 and the baffle 24.

[0069] Specifically, the fourth base 151 includes a third mounting plate 1511, two spaced-apart opposing third support plates 1512, and a third rotating shaft 1513. The third mounting plate 1511 is fixedly connected to the tooling platform 11 by bolts. The bottoms of the two third support plates 1512 are fixedly connected to the third mounting plate 1511. The two ends of the third rotating shaft 1513 are respectively connected to the tops of the two third support plates 1512. A third rotating positioning plate 152 is located between the two third support plates 1512, and one end of the third rotating positioning plate 152 is rotatably connected to the third rotating shaft 1513, allowing the third rotating positioning plate 152 to rotate around the third rotating shaft 1513. Simultaneously, a third connecting plate (not shown) is connected between the two third support plates 1512. The third connecting plate is located below the third rotating positioning plate 152 and is equipped with a third adjusting bolt 1515. The third adjusting bolt 1515 is threadedly connected to the second connecting plate, and the levelness of the third rotating positioning plate 152 can be adjusted by turning the third adjusting bolt 1515. The third support plate 1512 is provided with a second locking bolt 1514, which is threadedly connected to the third support plate 1512. By tightening the second locking bolt 1514, the third rotating positioning plate 152 can be locked to prevent the third rotating positioning plate 152 from wobbling left and right (tightening the second locking bolt 1514 will make it abut against the third rotating positioning plate 152). The stop member 153 includes a stop pin 1531 and a stop bolt 1532. The stop bolt 1532 is located on one side of the third rotating positioning plate 152, and the stop pin 1531 extends through the third rotating positioning plate 152 to the left and right sides of the third rotating positioning plate 152. The stop bolt 1532 is threadedly connected to the third rotating positioning plate 152, and the stop pin 1531 is fixedly connected to the third rotating positioning plate 152. The stop bolt 1532 is used to abut against the side wall of the hook assembly 25, and one end of the stop pin 1531 is used to abut against the end of the hook assembly 25, thereby positioning the hook assembly 25. The third rotating positioning plate 152 is used to abut against the side wall of the baffle 24, and the other end of the stop pin 1531 is used to abut against the end of the baffle 24, thereby positioning the baffle 24.

[0070] During positioning, the side wall of the hook assembly 25 abuts against the stop bolt 1532, and the end of the hook assembly 25 abuts against one end of the stop pin 1531, thereby positioning the hook assembly 25; the side wall of the baffle 24 abuts against the side wall of the third rotary positioning plate 152, and the end of the baffle 24 abuts against the other end of the stop pin 1531, thereby positioning the baffle 24. After welding is completed, the third rotary positioning plate 152 is rotated outward to achieve demolding. The stop pin 1531 is positioned with the hook assembly 25 and the baffle 24 through line contact, reducing the contact area and facilitating the flipping of the third rotary positioning plate 152 during demolding; the small contact area between the stop bolt 1532 and the hook assembly 25 facilitates the flipping of the third rotary positioning plate 152 during demolding, and also allows adjustment of the extension length of the stop bolt 1532 during tooling debugging, ensuring the accuracy of the tooling.

[0071] Furthermore, such as Figures 1 to 7 and Figure 13 As shown, in this embodiment, the side roller mounting plate positioning assembly 16 includes a fifth base 161 and a second positioning pin 162. The fifth base 161 is fixedly connected to the tooling platform 11, and the second positioning pin 162 is detachably inserted into the fifth base 161. The fifth base 161 and the second positioning pin 162 are used to position the side roller mounting plate 26.

[0072] Specifically, the fifth base 161 includes two spaced-apart support seats 1611, which are fixedly connected to the tooling platform 11 by bolts. Each support seat 1611 has a hole through which a second positioning pin 162 is inserted. During positioning, the two lugs of the side roller mounting plate 26 abut against the side walls of the two support seats 1611, while the second positioning pin 162 passes through the holes in the lugs and the holes in the two support seats 1611, thereby positioning the side roller mounting plate 26. After welding, the second positioning pin 162 is removed, and demolding is completed.

[0073] Furthermore, such as Figures 1 to 8 and Figure 14 and Figure 15As shown, in this embodiment, the shim block assembly 17 includes a first shim block 171, a second shim block 172, a third shim block 173, and a fourth shim block 174 arranged sequentially along the second direction Y. The third shim block 173 and the fourth shim block 174 are arranged adjacent to each other. The first shim block 171 is arranged corresponding to the pad positioning assembly 13. There are two first shim blocks 171, which are spaced apart along the first direction X and located between two pad positioning assemblies 13. The second shim block 172 is positioned corresponding to the adjusting cylinder bracket. Component 14 is configured; the third elevation block 173 and the fourth elevation block 174 are both configured corresponding to the side roller mounting plate positioning component 16. There are two fourth elevation blocks 174, which are spaced apart along the first direction X. The third elevation block 173 and the two fourth elevation blocks 174 are located between the two side roller mounting plate positioning components 16. The second elevation block 172 and the third elevation block 173 have the same height, and the first elevation block 171 and the fourth elevation block 174 have the same height. The height of the second elevation block 172 is greater than the height of the first elevation block 171. Among them, the second elevation block 172 and the third elevation block 173 are the same elevation block, and the first elevation block 171 and the fourth elevation block 174 are the same elevation block. Each elevation block is fixedly connected to the tooling platform 11 by bolts.

[0074] The first shim block 171 is used to support the fork hanger 21, the second shim block 172 and the third shim block 173 are used to support the two ends of the cross plate 27 respectively, and the fourth shim block 174 is used to support the bottom plate 29. The first shim block 171 and the second shim block 172 are used to position the side support plate 28, the second shim block 172 and the third shim block 173 are used to position the cross plate 27, and the third shim block 173 and the fourth shim block 174 are used to position the bottom plate 29.

[0075] Specifically, during positioning, the left side wall of the horizontal plate 27 abuts against the right side wall of the pad 22, and the front and rear side walls of the horizontal plate 27 are aligned with the front and rear side walls of the second shim block 172 and the third shim block 173, respectively, thereby positioning the horizontal plate 27; the side wall of the side support plate 28 is abutted against the sides of the first shim block 171 and the second shim block 172 as well as the side of the horizontal plate 27, and the left end of the side support plate 28 abuts against the fork hanger 21 and the pad 22, thereby positioning the side support plate 28; the left side wall of the bottom plate 29 abuts against the right side wall of the third shim block 173, and the front and rear side walls of the bottom plate 29 are aligned with the side walls of the two fourth shim blocks 174, respectively, thereby positioning the bottom plate 29.

[0076] The following details the workflow of welding and positioning fixture 1 for the forklift fork mounting bracket:

[0077] 1. Place the fork hanger 21 on the hanger positioning assembly 12 and the first elevation block 171. One side of the fork hanger 21 rests on the support column 1212 in the hanger positioning assembly 12, and the triangular positioning block 122 extends into the first mounting hole 212 on the fork hanger 21, thereby positioning the fork hanger 21. The other side of the fork hanger 21 rests on the first elevation block 171, thereby providing stable support for the fork hanger 21.

[0078] 2. Flip the first rotating positioning plate 132 in the pad positioning assembly 13 inward and move the first rotating positioning plate 132 to abut against the first support plate 1312, then tighten the U-shaped clamp 133 to fix the first rotating positioning plate 132 (i.e., achieve the desired effect). Figure 6 and Figure 7 (as shown in the diagram). Then, the pad 22 is placed on the fork hanger 21. At this time, the side of the pad 22 abuts against the side of the first rotary positioning plate 132, and the second pin 221 on the pad 22 is located on the step portion 1321, thereby positioning the pad 22.

[0079] 3. Place the horizontal plate 27 on the second shim block 172 and the third shim block 173. The left side wall of the horizontal plate 27 abuts against the right side wall of the pad plate 22. The front and rear side walls of the horizontal plate 27 are aligned with the front and rear side walls of the second shim block 172 and the front and rear side walls of the third shim block 173, respectively, thereby positioning the horizontal plate 27.

[0080] 4. Flip the second rotating positioning plate 142 in the adjusting cylinder bracket positioning assembly 14 inward; place the adjusting cylinder mounting bracket 23 on the upper surface of the horizontal plate 27, and make the two ear plates of the adjusting cylinder mounting bracket 23 contact the side of the second rotating positioning plate 142 and the side of the pad 144 respectively. Then, the first positioning pin 143 passes through the hole on the two ear plates to position the adjusting cylinder mounting bracket 23.

[0081] 5. Flip the third rotating positioning plate 152 in the baffle hook positioning assembly 15 inward; place the hook assembly 25 and the baffle 24 on the upper surface of the horizontal plate 27, with the side wall of the hook assembly 25 abutting against the stop bolt 1532 and the end of the hook assembly 25 abutting against one end of the stop pin 1531, thereby positioning the hook assembly 25; the side wall of the baffle 24 abutting against the side wall of the third rotating positioning plate 152 and the end of the baffle 24 abutting against the other end of the stop pin 1531, thereby positioning the baffle 24.

[0082] 6. Place the two ear plates of the side roller mounting plate 26 into contact with the side walls of the two support seats 1611 in the side roller mounting plate positioning assembly 16, and then pass the second positioning pin 162 through the holes on the two ear plates and the holes on the two support seats 1611 to position the side roller mounting plate 26.

[0083] 7. Place the base plate 29 on the two fourth shims 174. The base plate 29 is located below the horizontal plate 27. The left side wall of the base plate 29 abuts against the right side wall of the third shim 173, and the front and rear side walls of the base plate 29 are aligned with the side walls of the two fourth shims 174, thereby positioning the base plate 29.

[0084] 8. Place the side support plate 28 on the tooling platform 11. The side wall of the side support plate 28 is in contact with the side of the first shim block 171 and the second shim block 172 as well as the side of the horizontal plate 27. At the same time, the left end of the side support plate 28 abuts against the fork hanger 21 and the pad plate 22, thereby positioning the side support plate 28.

[0085] 9. Weld the components together to form a whole, thus obtaining the fork mounting bracket 2. (Note: 1. Other assembly sequences can be used for the above components; 2. Welding can be done by assembling the whole assembly first and then welding together, or by assembling and welding simultaneously.)

[0086] 10. Use Panasonic U-clamp 133, remove all the positioning pins, flip all the rotating positioning plates outward, and then use a lifting tool to lift the fork mounting bracket 2 away from the forklift fork mounting bracket welding positioning fixture 1 to complete the demolding.

[0087] The forklift fork mounting bracket welding positioning fixture 1 provided in this embodiment of the utility model supports and positions various components of the fork mounting bracket 2 by setting up a hanging plate positioning assembly 12, a pad positioning assembly 13, an adjustable cylinder bracket positioning assembly 14, a baffle hook positioning assembly 15, a side roller mounting plate positioning assembly 16, and a shim block assembly 17. This facilitates subsequent welding of the fork mounting bracket 2, improves welding efficiency and welding accuracy, and enhances welding quality. Simultaneously, the use of triangular positioning blocks 122, rotating positioning plates, and other positioning methods facilitates demolding.

[0088] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A forklift fork mounting bracket welding positioning tool for positioning a fork mounting bracket when welding, characterized by, The welding and positioning fixture for the forklift fork mounting bracket includes: Tooling platform; A mounting plate positioning assembly is disposed on the upper surface of the tooling platform and is used to position the fork mounting plate of the fork mounting bracket; there are two mounting plate positioning assemblies, which are arranged at intervals relative to each other along a first direction; A pad positioning assembly is disposed on the upper surface of the tooling platform for positioning the pad of the fork mounting bracket; there are two pad positioning assemblies, which are arranged at intervals relative to each other along the first direction; An adjustable cylinder bracket positioning assembly is disposed on the upper surface of the tooling platform and is used to position the adjustable cylinder mounting bracket of the fork mounting frame. A baffle hook positioning assembly is disposed on the upper surface of the tooling platform and is used to position the baffle and hook assembly of the fork mounting bracket; A side roller mounting plate positioning assembly is disposed on the upper surface of the tooling platform for positioning the side roller mounting plate of the fork mounting bracket; there are two side roller mounting plate positioning assemblies, which are arranged at intervals relative to each other along the first direction; The shim block assembly is disposed on the upper surface of the tooling platform and is used to support the fork mounting plate, cross plate and bottom plate of the fork mounting bracket, and to position the cross plate, side support plate and bottom plate of the fork mounting bracket. The mounting plate positioning assembly, the pad positioning assembly, the adjusting cylinder bracket positioning assembly, the baffle hook positioning assembly, and the side roller mounting plate positioning assembly are arranged sequentially along a second direction, which is perpendicular to the first direction.

2. The welding and positioning fixture for the forklift fork mounting bracket as described in claim 1, characterized in that, The number of the adjusting cylinder bracket positioning components is two, the two adjusting cylinder bracket positioning components are arranged at intervals along the first direction, and the two adjusting cylinder bracket positioning components are staggered along the second direction.

3. The welding and positioning fixture for the forklift fork mounting bracket as described in claim 1, characterized in that, The upper surface of the tooling platform forms an installation area between the hanging plate positioning assembly, the pad positioning assembly, the adjustable cylinder bracket positioning assembly, the baffle hook positioning assembly, and the side roller mounting plate positioning assembly, and the shim block assembly is disposed within the installation area.

4. The welding and positioning fixture for the forklift fork mounting bracket as described in claim 1, characterized in that, The mounting plate positioning assembly includes a first base and a triangular positioning block disposed on the first base. The first base is fixedly connected to the tooling platform. The first base is used to support the fork mounting plate, and the triangular positioning block is used to position the first mounting hole on the fork mounting plate.

5. The welding and positioning fixture for the forklift fork mounting bracket as described in claim 1, characterized in that, The pad positioning assembly includes a second base, a first rotating positioning plate, and a U-shaped clamp. The second base is fixedly connected to the tooling platform, and the first rotating positioning plate is rotatably connected to the second base. The first rotating positioning plate can move relative to the second base along the second direction. The first rotating positioning plate is used to position the pad, and the U-shaped clamp is used to clamp and fix the first rotating positioning plate and the second base.

6. The welding and positioning fixture for the forklift fork mounting bracket as described in claim 5, characterized in that, The first rotary positioning plate is provided with a stepped portion for positioning the second pin on the pad.

7. The welding and positioning fixture for the forklift fork mounting bracket as described in claim 1, characterized in that, The positioning assembly for the adjustable cylinder bracket includes a third base, a second rotating positioning plate, and a first positioning pin. The third base is fixedly connected to the tooling platform, one end of the second rotating positioning plate is rotatably connected to the third base, and the first positioning pin is detachably inserted into the other end of the second rotating positioning plate. The first positioning pin and the second rotating positioning plate are used to position the adjustable cylinder mounting bracket.

8. The welding and positioning fixture for the forklift fork mounting bracket as described in claim 1, characterized in that, The baffle hook positioning assembly includes a fourth base, a third rotating positioning plate, and a stop. The fourth base is fixedly connected to the tooling platform, one end of the third rotating positioning plate is rotatably connected to the fourth base, and the stop is disposed on the side of the other end of the third rotating positioning plate. The third rotating positioning plate is used to position the baffle, and the stop is used to position the hook assembly and the baffle.

9. The welding and positioning fixture for the forklift fork mounting bracket as described in claim 1, characterized in that, The side roller mounting plate positioning assembly includes a fifth base and a second positioning pin. The fifth base is fixedly connected to the tooling platform, and the second positioning pin is detachably inserted into the fifth base. The fifth base and the second positioning pin are used to position the side roller mounting plate.

10. The welding and positioning fixture for the forklift fork mounting bracket as described in any one of claims 1-9, characterized in that, The shim block assembly includes a first shim block, a second shim block, a third shim block, and a fourth shim block arranged sequentially along the second direction, wherein the third shim block and the fourth shim block are arranged adjacent to each other. The first shim is used to support the forklift plate, the second and third shims are used to support both ends of the cross plate, and the fourth shim is used to support the base plate. The first and second shims are used to position the side support plate, the second and third shims are used to position the cross plate, and the third and fourth shims are used to position the base plate.

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