Oil cylinder fixing plate mounting and positioning device

Abstract

The utility model discloses an oil cylinder fixing plate installing and positioning device which comprises a fixing plate erected between two steel channels of a forklift portal frame, one end of the fixing plate is fixedly provided with an end limiting column used for limiting the ends of the steel channels, and the other end of the fixing plate is fixedly provided with a positioning frame. The positioning frame comprises a connecting plate and a limiting plate, and the connecting plate and the limiting plate are connected into a whole and matched with the outer side face of the arc-shaped body of the oil cylinder fixing plate. A clamping column matched with the notch in the oil cylinder fixing plate is fixedly arranged at the bottom end of the limiting plate. According to the device, the oil cylinder fixing plate is assembled on the forklift portal frame, operation can be completed by a single person without scribing, the assembling efficiency is high, and the positioning precision can reach 0.2 mm.

Description

Technical Field

[0001] The utility model relates to the technical field of forklifts, in particular to an installation and positioning device for a cylinder fixing plate. Background Art

[0002] The forklift mast is an important component of the forklift lifting mechanism and the main load-bearing structure of the forklift picking device. It mainly consists of an inner mast, an outer mast, a fork frame, a fork and other components. The lifting cylinder fixed on the outer mast drives the inner mast and the fork to realize the lifting function.

[0003] The lifting cylinder is installed by fixing the cylinder fixing plate on the outer mast. The cylinder fixing plate is used to fix the mast cylinder position to ensure that it does not shake. Therefore, before installing the cylinder, the cylinder fixing plate needs to be installed in a fixed position on the outer mast. The structure of the cylinder fixing plate is a special-shaped structure, such as Figure 1 As shown, the oil cylinder fixing plate 2 is formed by bending in one piece, the outer end of the arc-shaped body 21 thereof is provided with a notch 22 , and the inner end thereof is welded to the forklift mast 1 .

[0004] In order to ensure the stroke of the lifting cylinder and the smooth lifting of the entire forklift, the cylinder fixing plate needs to be accurately positioned when it is welded and fixed on the gantry. At present, the fixing position is generally determined by a ruler and marking, but since the cylinder fixing plate is a special-shaped structure, the marking assembly efficiency is low and the size is difficult to control. Therefore, in order to improve efficiency and ensure accuracy, a positioning device needs to be designed. Utility Model Content

[0005] In order to solve the above existing problems, the utility model provides a cylinder fixing plate installation and positioning device.

[0006] The technical solution of the utility model is as follows:

[0007] A device for installing and positioning an oil cylinder fixing plate comprises a fixing plate mounted between two channel steels of a forklift door frame, one end of the fixing plate is fixedly provided with an end limit column for limiting the end of the channel steel, and the other end is fixedly provided with a positioning frame; the positioning frame comprises a connecting plate and a limit plate, the connecting plate and the limit plate are connected as a whole and match the outer side surface of the arc-shaped body of the oil cylinder fixing plate; the bottom end of the limit plate is fixedly provided with a clamping column matching the notch on the oil cylinder fixing plate.

[0008] In a further solution, the fixing plate includes a fixing plate body, and a connecting ear extends outward from a corner of one end of the fixing plate body, and the connecting ear is fixedly connected to the connecting plate.

[0009] In a further solution, a weight-reducing hole is provided in the middle of the fixing plate body.

[0010] In a further solution, gaskets are fixedly provided on the bottom end surfaces on both sides of the fixing plate.

[0011] In a further solution, a side limiting column for limiting the inner side of the channel steel is fixedly provided on one side of the fixed plate.

[0012] The device assembles the oil cylinder fixing plate onto the forklift mast, and can be completed by one person without marking, thereby achieving high assembly efficiency.

[0013] This device is set according to the size of the cylinder fixing plate and the forklift door frame, and its positioning accuracy can reach 0.2mm, thus ensuring that the positioning size meets the requirements of the drawing.

[0014] The device uses the outer arc surface and the notch of the oil cylinder fixing plate as positioning references, thereby ensuring the accuracy of installation and positioning of the oil cylinder fixing plate and eliminating the influence of the bending error of the oil cylinder fixing plate on the positioning accuracy.

[0015] The device achieves positioning in the height direction by abutting the end of the channel steel with the end limit column, and achieves positioning in the width direction by abutting the side of the channel steel with the side limit column, thereby improving the convenience of operation and the accuracy of positioning of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the assembly diagram of the cylinder fixing plate and the forklift mast.

[0017] Figure 2 This is a schematic diagram of the structure of the positioning device installed in the utility model.

[0018] Figure 3 It is a structural schematic diagram of the fixing plate in the utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the positioning frame in the utility model.

[0020] Figure 5 This is a schematic diagram of assembling the oil cylinder fixing plate of the installation and positioning device of the utility model.

[0021] In the figure: 1-forklift mast, 2-cylinder fixing plate, 21-arc body, 22-slot, 3-positioning device, 31-fixing plate, 311-fixing plate body, 312-connecting ear, 313-weight reduction hole; 32-end limit column, 33-pad, 34-positioning frame, 341-connecting plate, 342-limiting plate, 343-connecting hole, 344-clamping column; 35-side limit column. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The structure of the cylinder fixing plate is a special-shaped structure, such as Figure 1 As shown, the oil cylinder fixing plate 2 is an integrally formed bending structure, the outer end of the arc-shaped body 21 of which is provided with a notch 22 , and the inner end of the arc-shaped body 21 is welded to the forklift mast 1 .

[0024] See also Figure 2-4 The utility model provides a cylinder fixing plate installation and positioning device, including a fixing plate 31 mounted between two channel steels of a forklift door frame 1, one end of the fixing plate 31 is fixedly provided with an end limiting column 32 for limiting the end of the channel steel, and the other end is fixedly provided with a positioning frame 34; the positioning frame 34 includes a connecting plate 341 and a limiting plate 342, the connecting plate 341 and the limiting plate 342 are connected as a whole and match the outer side surface of the arc-shaped body 21 of the cylinder fixing plate 2; the bottom end of the limiting plate 342 is fixedly provided with a clamping column 343 matching the notch 22 on the cylinder fixing plate 2.

[0025] A side limiting column 35 for limiting the side of the channel steel is fixedly provided on one side of the fixing plate 31 .

[0026] There are two end limit posts 32, which are respectively located at the ends of two channel steels on the forklift door frame; the side limit posts 35 can be set on one side of the fixed plate 31. In order to improve accuracy, it is best to set two and locate them on the inner side of one channel steel.

[0027] The end limit column abuts against the end of the channel steel to achieve positioning in the height direction; the side limit column abuts against the side of the channel steel to achieve positioning in the width direction.

[0028] The device has a simple structure and is easy to operate. When positioning, the fixing plate 31 is first horizontally erected between the two channel steels at the end of the forklift gantry 1, and then horizontally moved inward along the channel steel until the end limit column 32 abuts against the end of the channel steel. Then adjust the horizontal direction so that the side limit column 35 abuts against the inner side of the channel steel. Thereby, the position of the device on the forklift gantry is positioned. Finally, the cylinder fixing plate 2 is placed between the positioning frame 34 and the forklift gantry 1, so that the outer side surface of the arc-shaped body 21 fits with the inner side surface of the positioning frame 34, and the clamping column 344 on the positioning frame 34 is just stuck in the notch 22 on the cylinder fixing plate 2, so that the sides of the cylinder fixing plate 2 and the positioning frame 34 are flush, which is convenient for welding the cylinder fixing plate 2, thereby realizing the positioning of the cylinder fixing plate 2. Finally, the fixing plate 31 is pressed, and the positioned cylinder fixing plate 2 can be welded to fix the cylinder fixing plate 2 on the forklift gantry 1.

[0029] like Figure 3 As shown, the fixing plate 31 includes a fixing plate body 311, and a connecting ear 312 extends outward from the corner of one end of the fixing plate body 311. The connecting ear 312 is provided with a connecting hole 343, and the connecting plate 341 can be fixed to the connecting ear 312 by fixing bolts.

[0030] The connecting ear 312 in the device protrudes from the entire device, which is not only convenient for fixing with the connecting plate 341 on the positioning frame 34, but also does not block the oil cylinder fixing plate 2, thereby facilitating welding operations on the oil cylinder fixing plate 2.

[0031] In order to reduce the weight of the entire device and facilitate hand-held operation, a weight-reducing hole 313 is opened in the middle of the fixing plate body 311. The shape and number of the weight-reducing hole 313 are not limited, and can be square or circular holes, and the number can be one, two, or three.

[0032] In order to make the positioning of the device more accurate, gaskets 33 are fixed on the bottom end surfaces of both sides of the fixing plate 31. The thickness of the gasket 33 is consistent with the thickness of the oil cylinder fixing plate 2, so that when the device is placed on the forklift mast, there is a gap between the positioning frame 34 and the forklift mast 1, which is just convenient for placing on the oil cylinder fixing plate 2, so when the oil cylinder fixing plate 2 is placed, the position of the device will not be offset.

[0033] When the positioning device is installed, the positioning device 3 is placed at the ends of the two channel steels of the forklift mast 1 to install the cylinder fixing plate 2, that is, the fixing plate 31 is first horizontally erected between the two channel steels, and then horizontally moved inward along the channel steel until the end limit column 32 abuts against the end of the channel steel; then the horizontal direction is adjusted to make the side limit column 35 abut against the inner side of the channel steel. Thus, the position of the device on the forklift mast is positioned.

[0034] Then, the oil cylinder fixing plate 2 is placed between the positioning frame 34 and the channel steel, so that the outer side surface of the arc-shaped body 21 fits with the inner side surface of the positioning frame 34, and the clamping column 344 on the positioning frame 34 is just clamped in the notch 22 on the oil cylinder fixing plate 2, so that the sides of the oil cylinder fixing plate 2 and the positioning frame 34 are flush, that is, the positioning of the oil cylinder fixing plate 2 is achieved (such as Figure 5 shown).

[0035] Finally, the fixing plate 31 is pressed, and the positioned oil cylinder fixing plate 2 can be welded to fix the oil cylinder fixing plate 2 on the forklift mast 1 .

[0036] Although this specification is described according to implementation modes, not every implementation mode includes 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.

[0037] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent changes made according to the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. A cylinder fixing plate installation and positioning device, comprising a fixing plate (31) mounted between two channel steels of a forklift mast (1), characterized in that: An end limit column (32) for limiting the end of the channel steel is fixedly provided at one end of the fixing plate (31), and a positioning frame (34) is fixedly provided at the other end; the positioning frame (34) comprises a connecting plate (341) and a limit plate (342), the connecting plate (341) and the limit plate (342) are connected as a whole and match the outer side surface of the arc-shaped body (21) of the oil cylinder fixing plate (2); a clamping column (343) matching the notch (22) on the oil cylinder fixing plate (2) is fixedly provided at the bottom end of the limit plate (342).

2. The oil cylinder fixing plate installation and positioning device according to claim 1, characterized in that: The fixing plate (31) comprises a fixing plate body (311), and a connecting ear (312) is extended outwardly at a corner of one end of the fixing plate body (311), and the connecting ear (312) is fixedly connected to the connecting plate (341).

3. The oil cylinder fixing plate installation and positioning device according to claim 2, characterized in that: A weight-reducing hole (313) is provided in the middle of the fixing plate body (311).

4. The oil cylinder fixing plate installation and positioning device according to claim 1, characterized in that: Gaskets (33) are fixedly provided on the bottom end surfaces of both sides of the fixing plate (31), and the thickness of the gaskets (33) is consistent with the thickness of the oil cylinder fixing plate (2).

5. The oil cylinder fixing plate installation and positioning device according to claim 1, characterized in that: A side limiting column (35) for limiting the inner side of the channel steel is fixedly provided on one side of the fixing plate (31).

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