Positioning tool for forward moving support of forklift

Abstract

The positioning tool comprises a steel channel, shaft end positioning plates are arranged at the two opposite ends of the steel channel, positioning holes and adjusting holes are formed in the two ends of the two shaft end positioning plates and the two ends of the steel channel correspondingly, and positioning shafts are arranged in the positioning holes and the adjusting holes in a penetrating mode. The ends, away from the channel steel, of the positioning shafts are provided with special-shaped blocks matched with the special-shaped holes in an inserted mode, the planes of the special-shaped blocks are parallel to the base plate, the channel steel is provided with locking assemblies in one-to-one correspondence with the positioning shafts, and the locking assemblies limit rotation of the positioning shafts. Meanwhile, the positioning shaft cannot rotate under the fixing action of the locking assembly, and therefore after welding is finished, the plane of the special-shaped hole in each connector is parallel to the base plate. The method has the effect of improving the mounting accuracy of the joint.

Description

Technical Field

[0001] This application relates to the technical field of forklifts, and particularly to a positioning tooling for the front-moving bracket of a forklift. Background Art

[0002] The main function of the front-moving bracket of a forklift is to ensure the stability of the forklift when loaded. In order to ensure that the forklift can smoothly slide on a specific track or plane, two sets of sliding rollers are arranged side by side at the bottom of the front-moving bracket. When installing the sliding rollers, the sliding rollers are usually installed at the bottom of the front-moving bracket through joints.

[0003] Refer to Figure 1 , the front-moving bracket 01 includes two relatively arranged L-shaped plates 011, a spacer plate 012 is arranged between the L-shaped plates 011, a connection hole 02 for installing the sliding roller is opened on each L-shaped plate 011, a joint 03 is arranged in the connection hole 02, a special-shaped hole 04 is opened at one end of the joint 03, the special-shaped hole 04 is in the shape of a missing circle, the special-shaped hole 04 is used to connect the bushing of the sliding roller, and the other end of the joint 03 is welded inside the connection hole 02.

[0004] However, at present, most of the joints are installed by manual welding, and the accuracy of manual welding is relatively low. It is difficult to ensure that the planes of the special-shaped holes are parallel to the spacer plate after the final welding of each joint. When such an error occurs, the sliding rollers connected to the joints cannot be on the same straight line, and finally the produced forklift cannot smoothly travel on a specific track, which has obvious deficiencies. Utility Model Content

[0005] In order to improve the accuracy of joint installation, this application provides a positioning tooling for the front-moving bracket of a forklift.

[0006] The positioning tooling for the front-moving bracket of a forklift provided by this application adopts the following technical solution:

[0007] A positioning tooling for the front-moving bracket of a forklift includes a channel steel. Axial end positioning plates are arranged at both opposite ends of the channel steel. Positioning holes and adjustment holes are respectively opened on the two axial end positioning plates and the two ends of the channel steel. Positioning shafts are respectively inserted through the positioning holes and the adjustment holes. An irregular block that is inserted and matched with the special-shaped hole is arranged at the end of the positioning shaft far from the channel steel. The plane of the irregular block is parallel to the spacer plate. The outer surface of the irregular block is closely attached to the inner surface of the special-shaped hole. Locking components corresponding to the positioning shafts one by one are arranged on the channel steel, and the locking components limit the rotation of the positioning shafts.

[0008] By adopting the above technical solution, before installation, the worker first adjusts the position of the special-shaped block on the positioning shaft to ensure that the plane of the special-shaped block is level with the backing plate. After the adjustment is completed, the worker fixes the positioning shaft by using the locking component. Finally, the joint is sleeved on the special-shaped block. The worker pushes the channel steel to insert the joint into the connection hole and then performs welding. During the entire welding process, the joint is always fixed on the special-shaped block, and at the same time, the special-shaped block will not rotate under the fixing action of the locking component. Therefore, after welding, the plane of the special-shaped hole on each joint is parallel to the backing plate, and the accuracy of joint installation is improved.

[0009] Optionally, the locking component includes two connecting plates arranged on the channel steel. The two connecting plates are arranged oppositely, and through grooves are opened on both connecting plates. A through hole is opened at one end of the positioning shaft away from the special-shaped block. A pin rod is inserted through the through groove and the through hole, and locking nuts are threadedly connected to both ends of the pin rod.

[0010] By adopting the above technical solution, when it is necessary to fix the positioning shaft, the worker inserts the pin rod into the through hole and the through groove, and then installs locking nuts at both ends of the pin rod for fixing. At this time, the rotation of the positioning shaft is restricted by the pin rod, and the plane of the special-shaped block on the positioning shaft always remains parallel to the backing plate, thereby improving the accuracy of joint installation.

[0011] Optionally, the positioning hole is a threaded hole, and the positioning shaft is threadedly connected in the positioning hole.

[0012] By adopting the above technical solution, the positioning shaft is connected in the positioning hole by a threaded connection, and the friction between the outer surface of the positioning shaft and the inner side wall of the positioning hole is increased, further reducing the possibility of the positioning shaft rotating during the butt welding process. At the same time, the rotation angle of the positioning shaft can be accurately controlled through the thread, which is convenient for the worker to adjust the state of the plane of the special-shaped block.

[0013] Optionally, the adjustment hole is a waist-shaped hole, and a connecting piece is slidably connected in the adjustment hole. The connecting piece is used to connect the adjustment hole and the positioning shaft.

[0014] By adopting the above technical solution, when the distance between the two positioning shafts is greater than or less than the distance between the two connection holes on the front support, the worker can adjust the distance between the two positioning shafts by sliding the connecting piece in the waist-shaped hole, so that the two joints can be smoothly installed in the connection holes. This setting improves the convenience of the worker's installation, and at the same time, the positioning tooling can be adapted to front supports of different specifications.

[0015] Optionally, the connecting piece is a sleeve, the sleeve is sleeved on the outer surface of the positioning shaft, and a threaded groove that is threadedly matched with the positioning shaft is opened in the sleeve.

[0016] By adopting the above technical solution, when installing the positioning shaft on the adjustment hole, the worker screws the positioning shaft into the inside of the sleeve. When the distance needs to be adjusted, the worker slides the sleeve to align the positioning shaft with the connection hole on the front moving support. At the same time, the setting of the sleeve facilitates the worker to disassemble the positioning shaft.

[0017] Optionally, sliding grooves are provided on the opposite side walls of the adjustment hole, the length direction of the sliding groove is parallel to the length direction of the adjustment hole, and sliding blocks are provided at opposite ends of the sleeve, and the sliding blocks are slidably connected inside the sliding grooves.

[0018] By adopting the above technical solution, under the limitation of the sliding groove and the sliding block, the sleeve can only reciprocate along the length direction of the kidney-shaped hole, thereby avoiding the situation that the sleeve disengages from the adjustment hole during the sliding process. At the same time, the setting of the sliding groove and the sliding block can make the sliding of the sleeve smoother and facilitate the worker to adjust the distance between the two positioning shafts.

[0019] Optionally, a bottom reference plate is provided on the channel steel, and the top surface of the bottom reference plate is flush with the top surface of the backing plate.

[0020] By adopting the above technical solution, the setting of the bottom reference plate further improves the accuracy of the joint installation. At the same time, when the joint is not connected, it is convenient for the worker to judge whether the plane of the special-shaped block is in a horizontal state with the backing plate through the bottom reference plate, further improving the convenience of the worker's operation.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. In the present application, by setting the positioning shaft, the special-shaped block and the locking component, during the welding process, the joint is always fixed on the special-shaped block, and at the same time, the positioning shaft will not rotate under the fixing action of the locking component. Therefore, after the welding is completed, the plane of the special-shaped hole on each joint is parallel to the backing plate, and the accuracy of the joint installation is improved;

[0023] 2. In the present application, by setting the adjustment hole and the connecting piece, when the distance between the two positioning shafts is greater than or less than the distance between the two connecting holes on the front moving support, the worker can adjust the distance between the two positioning shafts by sliding the connecting piece in the kidney-shaped hole, so that the two joints can be smoothly installed in the connecting holes. Such a setting improves the convenience of the worker's installation, and at the same time, the positioning tooling can be adapted to different specifications of the front moving support. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of the front moving support and the joint in the background art.

[0025] Figure 2 is a schematic structural diagram of the present application.

[0026] Figure 3 It is an exploded view between the special-shaped block and the joint in the embodiment of the present application.

[0027] Figure 4 It is a sectional view of the channel steel in the embodiment of the present application.

[0028] Explanation of reference numerals: 01, front-shift support; 011, L-shaped plate; 012, backing plate; 02, connection hole; 03, joint; 04, special-shaped hole; 1, channel steel; 2, shaft-end positioning plate; 3, bottom reference plate; 4, positioning hole; 5, adjustment hole; 51, chute; 6, positioning shaft; 61, through hole; 7, special-shaped block; 8, locking assembly; 81, connecting plate; 82, pin rod; 83, locking nut; 9, through slot; 10, connecting piece; 101, sleeve; 11, slider. Detailed implementation manners

[0029] The following further describes the present application in detail Figures 2-4 with reference to the accompanying drawings.

[0030] The embodiment of the present application discloses a positioning tooling for a forklift front-shift support.

[0031] Referring to Figure 2 , a positioning tooling for a forklift front-shift support includes a channel steel 1. Shaft-end positioning plates 2 are welded to both opposite ends of the channel steel 1. A bottom reference plate 3 is fixedly welded to the bottom end of the channel steel 1. The top surface of the bottom reference plate 3 is flush with the top surface of the backing plate 012 on the front-shift support 01.

[0032] Referring to Figure 2 and Figure 3 , positioning holes 4 and adjustment holes 5 are respectively formed at the central positions of the two shaft-end positioning plates 2 and at both ends of the channel steel 1. Positioning shafts 6 are inserted through the positioning holes 4 and the adjustment holes 5. The end of the positioning shaft 6 away from the channel steel 1 is fixedly connected to a special-shaped block 7. The special-shaped block 7 is used for plugging and mating with the special-shaped hole 04 on the joint 03. The special-shaped block 7 and the special-shaped hole 04 have the same shape. The horizontal plane of the special-shaped block 7 is parallel to the plane of the bottom reference plate 3. When the special-shaped block 7 is inserted into the special-shaped hole 04, the outer surface of the special-shaped block 7 is in close contact with the inner surface of the special-shaped hole 04. Locking assemblies 8 corresponding to the positioning shafts 6 one by one are arranged on the channel steel 1. The locking assemblies 8 are used to limit the rotation of the positioning shafts 6.

[0033] Referring to Figure 2 and Figure 3, the locking assembly 8 includes two connecting plates 81 fixedly welded to the surface of the channel steel 1 away from the shaft end positioning plate 2. The two connecting plates 81 are arranged opposite to each other. Through slots 9 are provided on both the connecting plates 81. One end of the positioning shaft 6 away from the special-shaped block 7 penetrates through the channel steel 1. A through hole 61 is provided on the positioning shaft 6. The centers of the through hole 61 and the through slot 9 are on the same straight line. A pin rod 82 is inserted through the through slot 9 and the through hole 61. Locking nuts 83 are threadedly connected to both ends of the pin rod 82. Under the combined use of the pin rod 82 and the locking nuts 83, the positioning shaft 6 is fixed and cannot rotate, and the horizontal plane of the special-shaped block 7 always remains parallel to the backing plate 012.

[0034] Before installation, the worker first inserts the positioning shaft 6 into the positioning hole 4 and the adjustment hole 5 and adjusts the position of the special-shaped block 7 to ensure that the horizontal plane of the special-shaped block 7 is level with the backing plate 012. After debugging, the worker inserts the pin rod 82 into the through hole 61 and the through slot 9, and then installs the locking nuts 83 at both ends of the pin rod 82 for fixation. At this time, the rotation of the positioning shaft 6 is restricted by the pin rod 82, and the plane of the special-shaped block 7 on the positioning shaft 6 always remains parallel to the backing plate 012. Finally, the joint 03 is sleeved on the special-shaped block 7. The worker pushes the channel steel 1 to insert the joint 03 into the connection hole 02, and then performs welding. During the entire welding process, the joint 03 is always fixed on the special-shaped block 7, and at the same time, the special-shaped block 7 will not rotate under the fixing action of the locking assembly 8. Therefore, after welding, the plane of the special-shaped hole 04 on each joint 03 is parallel to the backing plate 012, thereby improving the installation accuracy of the joint 03.

[0035] Refer to Figure 2 and Figure 3 , the positioning hole 4 is a threaded hole. The positioning shaft 6 located in the positioning hole 4 is threadedly connected inside the positioning hole 4. By means of threaded connection, the frictional force between the outer surface of the positioning shaft 6 and the inner side wall of the positioning hole 4 is increased, further reducing the possibility of the positioning shaft 6 rotating during the butt welding process. At the same time, the rotation angle of the positioning shaft 6 can be accurately controlled through the thread, which is convenient for the worker to adjust the state of the plane of the special-shaped block 7.

[0036] Refer to Figures 2 to 4 , the adjustment hole 5 is a waist-shaped hole. A connecting piece 10 is slidably connected inside the adjustment hole 5. The connecting piece 10 is used to connect the adjustment hole 5 and the positioning shaft 6. When the distance between the two positioning shafts 6 is greater than or less than the distance between the two connection holes 02 on the front shift support 01, the worker can adjust the distance between the two positioning shafts 6 by sliding the connecting piece 10 inside the adjustment hole 5, so that the two joints 03 can be smoothly installed in the connection holes 02. Such a setting improves the installation convenience and at the same time enables the positioning tooling to be adapted to front shift supports 01 of different specifications.

[0037] Refer to Figures 2 to 4, the connecting member 10 is a sleeve 101. The sleeve 101 is sleeved on the outer surface of the positioning shaft 6. A threaded groove that is in threaded fit with the positioning shaft 6 is provided inside the sleeve 101. When installing the positioning shaft 6 located in the adjustment hole 5, the worker screws the positioning shaft 6 into the inside of the sleeve 101. When the distance needs to be adjusted, the worker slides the sleeve 101 so that the positioning shaft 6 is aligned with the connection hole 02 on the front shift support 01.

[0038] Referring to Figures 2 to 4 , sliding grooves 51 are provided on the opposite side walls of the adjustment hole 5. The length direction of the sliding groove 51 is parallel to the length direction of the adjustment hole 5. Sliders 11 are welded to the opposite ends of the sleeve 101. The sliders 11 are slidably connected inside the sliding grooves 51. Under the limitation of the sliding grooves 51 and the sliders 11, the sleeve 101 can only reciprocate along the length direction of the adjustment hole 5, thereby preventing the sleeve 101 from disengaging from the adjustment hole 5 during the sliding process. At the same time, the arrangement of the sliding grooves 51 and the sliders 11 can make the sliding of the sleeve 101 smoother, facilitating the worker to adjust the distance between the two positioning shafts 6.

[0039] The implementation principle of the positioning tooling for the front shift support of a forklift in an embodiment of the present application is as follows: Before installation, the worker screws the positioning shafts 6 into the positioning holes 4 and the inside of the sleeve 101 respectively. When the horizontal plane of the special-shaped block 7 is level with the plane of the bottom reference plate 3, stop rotating the positioning shaft 6;

[0040] Subsequently, the worker slides the sleeve 101 in the adjustment hole 5 so that the special-shaped blocks 7 of the two positioning shafts 6 are both aligned with the two connection holes 02. After alignment, the worker inserts the pin rod 82 into the through hole 61 and the through groove 9, and then installs locking nuts 83 at both ends of the pin rod 82 for fixation. At this time, the rotation of the positioning shaft 6 is restricted by the pin rod 82, and the plane of the special-shaped block 7 on the positioning shaft 6 always remains parallel to the backing plate 012. Finally, the special-shaped hole 04 on the joint 03 is sleeved on the special-shaped block 7. The worker pushes the channel steel 1 to insert the joint 03 into the connection hole 02, and then performs welding. During the entire welding process, the joint 03 is always fixed on the special-shaped block 7, and at the same time, the special-shaped block 7 will not rotate under the fixing action of the locking assembly 8. Therefore, during the entire welding process, the plane of the special-shaped hole 04 on each joint 03 remains parallel to the backing plate 012, thereby improving the installation accuracy of the joint 03;

[0041] After welding is completed, the worker first loosens the locking nuts 83, then pulls out the pin rod 82, and then rotates the two positioning shafts 6 to separate the special-shaped blocks 7 from the special-shaped holes 04, thereby removing the positioning tooling from the front shift support 01 for the next use.

[0042] The above are all preferred embodiments of the present application. The protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A positioning tooling for a forklift forward moving bracket, characterized in that It includes a channel steel (1), shaft end positioning plates (2) are arranged at both opposite ends of the channel steel (1), positioning holes (4) and adjustment holes (5) are respectively formed in the two shaft end positioning plates (2) and the two ends of the channel steel (1), positioning shafts (6) are inserted through the positioning holes (4) and the adjustment holes (5), a special-shaped block (7) which is inserted and matched with a special-shaped hole (04) is arranged at one end of the positioning shaft (6) away from the channel steel (1), the plane of the special-shaped block (7) is parallel to the backing plate (012), and the outer surface of the special-shaped block (7) is in close contact with the inner surface of the special-shaped hole (04). A locking assembly (8) corresponding to the positioning shaft (6) one by one is arranged on the channel steel (1), and the locking assembly (8) restricts the rotation of the positioning shaft (6).

2. The positioning tooling for the forklift forward moving bracket according to claim 1, characterized in that, The locking assembly (8) includes two connecting plates (81) arranged on the channel steel (1), the two connecting plates (81) are arranged oppositely, through slots (9) are formed in the connecting plates (81), through holes (61) are formed at one end of the positioning shaft (6) away from the special-shaped block (7), a pin rod (82) is inserted through the through slot (9) and the through hole (61), and locking nuts (83) are threadedly connected to both ends of the pin rod (82).

3. The positioning tooling for the forklift forward moving bracket according to claim 1, characterized in that, The positioning hole (4) is a threaded hole, and the positioning shaft (6) is threadedly connected in the positioning hole (4).

4. A positioning tooling for a forklift forward movement support according to claim 1, characterized in that, The adjustment hole (5) is an oval hole, and a connecting member (10) is slidably connected in the adjustment hole (5), and the connecting member (10) is used for connecting the adjustment hole (5) and the positioning shaft (6).

5. The positioning tooling for the forklift forward moving bracket according to claim 4, characterized in that, The connecting member (10) is a sleeve (101), the sleeve (101) is sleeved on the outer surface of the positioning shaft (6), and a threaded groove which is in threaded cooperation with the positioning shaft (6) is formed in the sleeve (101).

6. The positioning tooling of a forklift forward moving bracket according to claim 5, characterized in that, Chute grooves (51) are formed on opposite side walls of the adjustment hole (5), the length direction of the chute grooves (51) is parallel to the length direction of the adjustment hole (5), sliding blocks (11) are arranged at both opposite ends of the sleeve (101), and the sliding blocks (11) are slidably connected inside the chute grooves (51).

7. The positioning tooling for the forklift forward moving bracket according to claim 1, characterized in that, A bottom reference plate (3) is arranged on the channel steel (1), and the top surface of the bottom reference plate (3) is flush with the top surface of the backing plate (012).

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