An assembly and positioning fixture for a tilting cylinder support

Abstract

This utility model relates to the field of positioning tooling technology, and discloses an assembly positioning tooling for an inclined hydraulic cylinder support. It includes a base with at least three positioning pins fixed on it for positioning the base plate of the inclined hydraulic cylinder support. An opening positioning plate, the size of which matches the opening size between the two support plates of the inclined hydraulic cylinder support, is placed on the base plate. A positioning component is fixed on one side of the upper surface of the base. The positioning component includes a positioning block, on which at least two positioning shafts for positioning the two ends of the support plates of the inclined hydraulic cylinder support and a positioning element for abutting and positioning the surface of the support plates of the inclined hydraulic cylinder support are installed. A clamping device is installed on the side of the base away from the positioning component to cooperate with the positioning element and clamp the support plates of the inclined hydraulic cylinder support. This utility model enables rapid and accurate positioning and fixing of the base plate and support plates of the inclined hydraulic cylinder support, ensuring the accuracy of the opening size and coaxiality, and improving assembly efficiency while ensuring the welding quality of the product.

Description

Technical Field

[0001] This utility model relates to the field of positioning tooling technology, specifically an assembly positioning tooling for an inclined hydraulic cylinder support. Background Technology

[0002] The tilt cylinder is one of the core components of the steering system of an internal combustion forklift. Through its telescopic movement, it tilts the mast forward and backward, directly affecting the forklift's maneuverability and lifting stability. The tilt cylinder support, serving as the mounting base for the tilt cylinder, is typically welded together from a base plate and two side support plates. The precision of its structural dimensions (especially the opening dimensions, coaxiality, and relative positions of the side support plates) directly determines the cylinder's installation accuracy and operational reliability. In the K2 series 5-10t internal combustion forklifts, the dimensional consistency of this support has a significant impact on the overall vehicle's handling performance and service life.

[0003] Currently, the assembly of this type of tilting cylinder support commonly employs a marking-based positioning method. Operators must rely on experience to mark the support plate position lines on the base plate before tack fixing and welding. This method lacks effective physical limiting and positioning means, making it difficult to guarantee the dimensions of the support plates, the opening dimensions between the two plates, and coaxiality, resulting in poor assembly quality stability and a low pass rate. Furthermore, relying entirely on manual alignment is labor-intensive, inefficient, and requires extensive correction work after welding deformation, potentially leading to workpiece scrap. This makes it unsuitable for mass production.

[0004] Therefore, there is an urgent need for an assembly and positioning fixture for tilting cylinder supports. Before the tilting cylinder supports are machined and welded, the various components of the tilting cylinder supports can be quickly and accurately positioned and fixed to ensure the dimensional accuracy before welding, especially the opening size and coaxiality of the two support plates, thereby improving the product assembly efficiency while ensuring product quality. Utility Model Content

[0005] The purpose of this utility model is to provide an assembly and positioning fixture for a tilting cylinder support, so as to solve the problems mentioned in the background art, so as to achieve rapid and accurate positioning of each component of the tilting cylinder support, ensure dimensional accuracy such as opening size and coaxiality, and improve assembly efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An assembly and positioning fixture for a tilting cylinder support includes: Base; At least three locating pins are fixed to the base for positioning the bottom plate of the tilting cylinder support; The opening positioning plate is placed on the base plate of the tilt cylinder support, and its size is configured to match the opening size between the two support plates of the tilt cylinder support. A positioning component, fixed to one side of the upper surface of the base, includes: Positioning support block; At least two positioning shafts are installed on the positioning block to position the two ends of the support plate of the tilting cylinder support. A positioning component, installed on the positioning block, is used to abut against and position the support plate surface of the tilting cylinder support; A clamping device is installed on the side of the base away from the positioning component, and is used to cooperate with the positioning component to clamp the support plate of the tilting cylinder support.

[0007] As a further embodiment of this utility model: to facilitate the installation and replacement of the positioning shaft, the positioning assembly further includes a mounting hole for fitting the positioning shaft, the mounting hole being formed on the side wall of the positioning support block.

[0008] As a further embodiment of this utility model: to prevent the positioning shaft from coming out of the mounting hole during the positioning process, the radius of the end of the positioning shaft away from the clamping device is larger than the diameter of the mounting hole.

[0009] As a further embodiment of this utility model: in order to facilitate the adjustment of the contact position and force of the positioning component with the inclined cylinder support plate to adapt to workpieces of different specifications, the positioning component is a bolt threadedly connected to the positioning block.

[0010] As a further embodiment of this utility model: in order to avoid scratching or damaging the workpiece surface when abutting the inclined cylinder support plate, the positioning member also includes an elastic soft head fixed on one end of the positioning member abutting the inclined cylinder support plate.

[0011] As a further aspect of this utility model: to ensure that the length of the positioning shaft is sufficient to simultaneously position the support plates of the two tilting cylinder supports, the distance from the end of the positioning shaft near the clamping device to the positioning block is greater than the distance from the support plate of the tilting cylinder support near the clamping device to the positioning block.

[0012] As a further embodiment of this utility model: to enhance the rigidity and stability of the base and to provide optimized space for the installation of the clamping device, the base further includes a reinforcing plate fixed to the lower surface of the base and a groove formed on the edge of the base away from the positioning component, and the clamping device is fixed to the upper surface of the reinforcing plate.

[0013] As a further embodiment of this utility model: in order to ensure the structural strength of the base while reducing its weight, the reinforcing plate is a U-shaped structure, and its opening direction is opposite to the opening direction of the groove.

[0014] As a further embodiment of this utility model: to shorten the clamping time, the clamping device is a push-pull type quick clamp.

[0015] Compared with the prior art, the beneficial effects of this utility model are: This utility model features a novel structure. The addition of a positioning pin on the base positions the bottom plate of the tilting cylinder support, ensuring its dimensions meet requirements. Simultaneously, the positioning shaft on the positioning assembly ensures the dimensions of the support plate and its relative position and coaxiality on the tilting cylinder support bottom plate. The opening positioning plate provides a positioning reference for the two tilting cylinder support plates, ensuring the opening dimension between them meets requirements. The positioning components on the positioning assembly, in conjunction with the clamping device, clamp and fix the tilting cylinder support plates, facilitating subsequent machining and ensuring the structural dimensional stability of the tilting cylinder support before welding. This reduces repeated adjustments and reassemblies, improving the production efficiency of the tilting cylinder support. Attached Figure Description

[0016] Figure 1 This is an assembly drawing of the tooling and tilting cylinder support of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a top view of the present invention; Figure 4 This is a side view of the present invention; Figure 5 This is a front view of the present invention; Figure 6 This is a schematic diagram of the inclined cylinder support in this utility model; In the diagram: 1-base, 11-positioning pin, 12-opening positioning plate, 13-reinforcing plate, 14-groove, 2-positioning component, 21-positioning support block, 211-mounting hole, 22-positioning shaft, 23-positioning piece, 231-elastic soft head, 3-clamping device, 4-tilting cylinder support, 41-base plate, 42-support plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations.

[0019] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0020] Please see Figure 1-6 In this embodiment of the present invention, an assembly and positioning fixture for a tilting cylinder support includes a base 1, which is specifically a rectangular plate. Positioning pins 11 are welded to the base 1. The number of positioning pins 11 is at least three that are not collinear. The line connecting two positioning pins 11 is parallel to a straight edge of the base 1 and is used to position the long side of the base plate 41 of the tilting cylinder support 4. The remaining positioning pin 11 is used to position the side of the base plate 41 of the tilting cylinder support 4 that is perpendicular to the long side. When the long side and the side perpendicular to the long side of the base plate 41 of the tilting cylinder support 4 are both positioned and fixed by the positioning pins 11, the overall position and size of the base plate 41 are basically determined. In this embodiment, four positioning pins 11 are specifically configured to be compatible with positioning base plates of tilting cylinder supports 4 of different specifications.

[0021] like Figure 1 and Figure 3As shown, a positioning component 2 and a clamping device 3 are fixedly connected to the base 1. The positioning component 2 includes a positioning support block 21, which is welded to one side of the upper surface of the base 1. A mounting hole 211 is provided on the side wall of the positioning support block 21. The mounting hole 211 is a through hole, and the positioning shaft 22 is fitted into the mounting hole 211. This facilitates the installation and removal of the positioning shaft 22 before and after assembly and positioning, allowing the assembled tilting cylinder support 4 to be removed and the next tilting cylinder support 4 to be assembled and positioned. The positioning shaft 22 passes through and is fixed to the positioning support block 21, with both ends of the positioning shaft 22 located outside the positioning support block 21. The radius of the end of the positioning shaft 22 furthest from the clamping device 3 is larger than the diameter of the mounting hole 211, effectively preventing the positioning shaft 22 from coming out of the mounting hole 211 during positioning. It also prevents the end of the positioning shaft 22 near the clamping device 3 from not extending properly, thus ensuring proper positioning of the support plate 42 on the tilting cylinder support 4.

[0022] At least two positioning shafts 22 are configured, located at the left and right ends of the positioning block 21 respectively, and capable of positioning the two end edges of the support plate 42 of the tilting cylinder support 4. This fixes the relative position of the support plate 42 on the floor 41 of the tilting cylinder support 4, while ensuring that the dimensions of the support plate 42 and the coaxiality of the two support plates 42 meet the requirements, facilitating drilling of the two support plates 42 during subsequent machining. The distance from the end face of the positioning shaft 22 near the clamping device 3 to the side wall of the positioning block 21 is greater than the distance from the support plate 42 of the tilting cylinder support 4 near the clamping device 3 to the side wall of the positioning block 21, so that the length of the portion of the positioning shaft 22 used for positioning the support plate 42 can simultaneously position both support plates 42 on the tilting cylinder support 4. In this embodiment, two positioning shafts 22 are specifically configured.

[0023] like Figure 3 and Figure 4As shown, the positioning assembly 2 also includes a positioning element 23. One end of the positioning element 23 is vertically fixed to the side wall of the positioning support block 21 near the clamping device 3, and the other end is used to abut against and position the support plate 42 of the tilting cylinder support 4. An elastic soft head 231 is also bonded to the end of the positioning element 23 that abuts against the support plate 42 of the tilting cylinder support 4. The elastic soft head 231 can prevent scratching or damaging the surface of the support plate 42 when abutting against it, while also increasing the friction between the positioning element 23 and the surface of the support plate 42. This allows the positioning element 23 to assist in cooperating with the positioning shaft 22, preventing the support plate 42 from shifting during the positioning process. Multiple positioning elements 23 can be configured to reduce the stress generated when a single positioning element 23 abuts against the support plate 42. In this embodiment, the positioning element 23 is specifically configured as three bolts, which are threaded into the threaded holes on the positioning support block 21. This allows for adjustment by screwing, controlling the contact position and force of the positioning element 23 against the support plate 42, thus improving the adaptability of the tooling to tilting cylinder supports 4 of different specifications. Adjusting the three bolts to have the same extension length ensures that the surface of the support plate 42 is perpendicular to the base plate 41 of the tilting cylinder support 4, preventing the support plate 42 from tilting. Figure 1 As shown, an opening positioning plate 12 is placed on the base plate 41 of the tilting cylinder support 4. The bottom of the support plate 42 is vertically abutted against the two parallel straight edges of the opening positioning plate 12. The size of the opening positioning plate 12 matches the opening size between the two support plates 42 of the tilting cylinder support 4, thereby ensuring that the opening size between the two support plates 42 meets the requirements.

[0024] like Figure 1 and Figure 2 As shown, a reinforcing plate 13 is welded to the lower surface of the base 1 to enhance its rigidity and stability. A groove 14 is provided on the edge of the base 1 away from the positioning component 2. The reinforcing plate 13 is specifically designed as a U-shaped structure, which reduces the overall weight of the tooling while maintaining structural strength. The opening direction of the reinforcing plate 13 is opposite to the opening direction of the groove 14, so that the upper surface of the reinforcing plate 13 is exposed in the groove 14, which facilitates the installation of the clamping device 3. The clamping device 3 is fastened to the upper surface of the reinforcing plate 13 by bolts. The clamping device 3 is arranged opposite to the positioning component 2 and is used to cooperate with the positioning component 23 to clamp the two support plates 42 of the tilting cylinder support 4 onto the opening positioning plate 12. In this embodiment, the clamping device 3 is specifically designed as a push-pull quick clamp, which facilitates quick clamping operations, shortens clamping time, and improves assembly efficiency.

[0025] This utility model has a novel structure and stable operation. When using this utility model, first place the base plate 41 of the inclined cylinder support 4 on the base 1, and abut the edges of the base plate 41 against the outer peripheral wall of the positioning pin 11 to position the base plate 41 on the base 1. Then, insert a positioning shaft 22 into the mounting hole 211 until the positioning shaft 22 can no longer move towards the base plate 41 in the mounting hole 211. Then, adjust the positioning member 23 so that the ends of the multiple positioning members 23 near the base plate 41 are on the same surface and the length matches the distance between the surface of the support plate 42 and the edge of the base plate 41. Then, abut the surface of the first support plate 42 against the positioning member 23 and abut the edge of the first support plate 42 against the outer peripheral wall of the positioning shaft 22 to complete the positioning of the first support plate 42. Then, the edge of the opening positioning plate 12 abuts against the first support plate 42. Following the same steps, the second support plate 42 abuts against the other side of the opening positioning plate 12, clamping the opening positioning plate 12 between the two support plates 42. At this point, another positioning shaft 22 is inserted to simultaneously position the edges of both support plates 42. Then, the clamping device 3, in conjunction with the positioning component 23, clamps the two support plates 42, completing the positioning of each component of the tilting cylinder support 4, facilitating the next step of machining, welding, and assembly. After machining is completed, the clamping device 3 is released, the opening positioning plate 12 is removed, the positioning shaft 22 is pulled out from the positioning support block 21, and the welded and assembled tilting cylinder support 4 is removed. Then, the positioning and assembly of each component of the next tilting cylinder support 4 is performed.

[0026] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0027] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. An assembly and positioning fixture for a tilting cylinder support, characterized in that, include: Base (1); At least three locating pins (11) are fixed on the base (1) for positioning the bottom plate of the tilting cylinder support; The opening positioning plate (12) is placed on the bottom plate of the tilt cylinder support, and its size is configured to match the opening size between the two support plates of the tilt cylinder support; Positioning component (2), fixed to one side of the upper surface of the base (1), includes: Positioning support block (21); At least two positioning shafts (22) are installed on the positioning block (21) for positioning the two ends of the support plate of the tilting cylinder support; The positioning component (23) is installed on the positioning block (21) and is used to abut against and position the support plate surface of the tilting cylinder support. A clamping device (3) is installed on the side of the base (1) away from the positioning component (2) for cooperating with the positioning component (23) to clamp the support plate of the tilting cylinder support.

2. The assembly positioning fixture according to claim 1, characterized in that: The positioning component (2) also includes a mounting hole (211) for mounting the positioning shaft, the mounting hole (211) being formed on the side wall of the positioning support block (21).

3. The assembly positioning fixture according to claim 2, characterized in that: The radius of the end of the positioning shaft (22) away from the clamping device (3) is greater than the diameter of the mounting hole (211).

4. The assembly positioning fixture according to claim 1, characterized in that: The positioning element (23) is a bolt that is threadedly connected to the positioning support block (21).

5. The assembly positioning fixture according to claim 1, characterized in that: The positioning component (23) also includes an elastic soft head (231) fixed on one end of the positioning component (23) that abuts against the inclined cylinder support plate.

6. The assembly positioning fixture according to claim 1, characterized in that: The distance from the end of the positioning shaft (22) near the clamping device (3) to the positioning block (21) is greater than the distance from the support plate of the tilting cylinder support near the clamping device (3) to the positioning block (21).

7. The assembly positioning fixture according to claim 1, characterized in that: The base (1) further includes a reinforcing plate (13) fixed to the lower surface of the base (1) and a groove (14) formed on the edge of the base (1) away from the positioning component (2), and the clamping device (3) is fixed to the upper surface of the reinforcing plate (13).

8. The assembly positioning fixture according to claim 7, characterized in that: The reinforcing plate (13) has a U-shaped structure, and its opening direction is opposite to that of the groove (14).

9. The assembly positioning fixture according to claim 1, characterized in that: The clamping device (3) is a push-pull quick clamp.

Images