Machining and positioning device for gearbox body

Abstract

The utility model discloses a gearbox body machining positioning device which comprises a base, a front end positioning mechanism and a rear end positioning mechanism are oppositely and fixedly arranged on the base, the front end positioning mechanism comprises an end positioning plate, a limiting assembly and a pressing assembly, and the limiting assembly and the pressing assembly are fixedly arranged on the end positioning plate; the rear end positioning mechanism comprises a clamping assembly for clamping the supporting face of the gearbox body and a supporting assembly for limiting the rear end face of the gearbox body. The front end positioning mechanism and the rear end positioning mechanism are designed according to the structural characteristics of the front end face and the rear end face of the gearbox body respectively, the two sides of the gearbox body are abutted and limited through the side limiting columns, position deviation of the gearbox body is avoided, the positioning precision of the gearbox body is improved, and therefore high practicability is achieved.

Description

Technical Field

[0001] This utility model relates to the field of forklift technology, specifically to a processing and positioning device for a gearbox housing. Background Technology

[0002] The gearbox housing is a core component of the forklift drive system, its structure balancing strength, sealing, and functionality. The gearbox housing includes a front face, a rear face, and a top face. The front face, located at the front of the housing, has support holes for mounting the drive shaft. The rear face corresponds to the front face and also has drive shaft support holes. The top face is the main mounting surface for connecting to the gearbox cover or other covering parts, and also serves as the positioning reference for machining various other holes (such as support holes and threaded holes). Because the various holes on the gearbox housing are high-precision holes used to fix the input and output shafts, as well as the shift fork shaft holes, their machining accuracy is high. Additionally, the gearbox housing contains internal sealing oil passages, and the position of these oil holes must also be accurate. Therefore, the gearbox housing has a complex structure and requires high machining accuracy. During machining, it is necessary to position it before machining each high-precision hole, and the reliability of the positioning fixture is crucial to ensuring the machining quality. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a machining and positioning device for a gearbox housing.

[0004] The specific technical solution of this utility model is as follows:

[0005] A processing and positioning device for a gearbox housing includes a base, on which a front-end positioning mechanism and a rear-end positioning mechanism are fixedly disposed. The front-end positioning mechanism includes an end positioning plate and a limiting component and a clamping component fixed on the end positioning plate. The rear-end positioning mechanism includes a clamping component for clamping the supporting surface of the gearbox housing and a supporting component for limiting the rear end surface of the gearbox housing.

[0006] In a further embodiment, a positioning hole is provided at the center of the end positioning plate, and the limiting component and the clamping component are located on the outer periphery of the positioning hole. The limiting component includes a positioning pin and a limiting shaft. The clamping component includes a support column and a limiting seat fixed on the end positioning plate. A pressure plate is movably sleeved on the support column. The rear end of the pressure plate is connected to the limiting seat through an elastic element. A locking element is installed on the support column above the pressure plate.

[0007] In a further embodiment, reinforcing plates are fixed on both sides of the end positioning plate.

[0008] In a further embodiment, the clamping assembly includes a base fixed on a base, and a second clamping assembly and a first bottom limiting post are mounted on the base via a support frame; after the positioning hole on the support surface is inserted into the first bottom limiting post, it is clamped by the second clamping assembly.

[0009] In a further embodiment, a second side limiting post is fixedly provided on one side of the second clamping component, and a third side limiting post is installed on the support frame. The second and third side limiting posts are arranged in the same direction and have the same structure. The third side limiting post includes a limiting post threadedly connected to the support frame, and a knob is installed at the rear end of the limiting post.

[0010] Preferably, a bottom limiting post 2 is fixed on the base located on one side of the support frame, and a bottom support member is installed on the side wall of the support frame. The bottom support member includes a base block, an mounting plate is movably installed on the base block, and an arc-shaped pressure block is movably installed on the upper part of the mounting plate.

[0011] A further embodiment also includes a side positioning mechanism, which includes a fixed seat mounted on a base, and a side limiting post is mounted on the fixed seat via a triangular bracket.

[0012] In this invention, the base serves as the foundation of the entire machining positioning device. It connects to the machining equipment for positioning and provides a supporting positioning base for other parts of the fixture. The front-end positioning mechanism and the rear-end positioning mechanism are used to position the gearbox housing on the base, thus completing the positioning process.

[0013] The processing and positioning device of this utility model is designed according to the structural characteristics of the gearbox housing. Specifically, a front-end positioning mechanism and a rear-end positioning mechanism are designed for the structural characteristics of the front and rear ends of the gearbox housing, respectively. Multiple side limiting posts are used to abut and limit the two sides to prevent positional deviation and improve the positioning accuracy of the gearbox housing. Therefore, it has strong practicality.

[0014] The processing positioning device of this utility model positions the rear end face of the gearbox housing through the bottom support and side limiting column, while also preventing vibration from affecting the flatness of the large surface during auxiliary processing, thus further improving the positioning stability. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings:

[0016] Figure 1 This is a structural schematic diagram of the gearbox housing in this utility model.

[0017] Figure 2 This is a schematic diagram of the assembly of the processing positioning device and the gearbox housing of this utility model.

[0018] Figure 3 This is a schematic diagram of the structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the front-end positioning mechanism in this utility model.

[0020] Figure 5 This is a schematic diagram of the side positioning mechanism of this utility model.

[0021] Figure 6 This is a schematic diagram of the rear-end positioning mechanism in this utility model.

[0022] Figure 7 This is a schematic diagram of the structure of the midsole support component of this utility model.

[0023] In the picture:

[0024] 1-Front-end positioning mechanism; 11-End positioning plate; 12-Positioning pin; 13-Limiting shaft; 14-Pressure assembly one; 141-Pressure plate; 142-Locking component; 143-Limiting seat; 144-Support column; 15-Positioning hole; 16-Reinforcing plate;

[0025] 2-Base;

[0026] 3-Side positioning mechanism, 31-Fixed seat, 32-Triangular bracket, 33-Side limiting post one;

[0027] 4- Rear end positioning mechanism, 41- Base, 42- Support frame, 43- Pressing component two, 44- Side limiting post two, 45- Bottom limiting post one, 46- Side limiting post three, 47- Bottom limiting post two, 48- Bottom support component, 481- Base block, 482- Arc-shaped pressing block, 483- Mounting plate, 484- Adjusting bolt;

[0028] 100 - Machining positioning device;

[0029] 200 - Gearbox housing, 201 - Front end face, 202 - Rear end face, 203 - Supporting surface. Detailed Implementation

[0030] The present application will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present application can be combined with each other.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," and "fixed installation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] The processing and positioning device of this invention is used for positioning the gearbox housing 200. The gearbox housing 200 is as follows: Figure 1 As shown, it includes a front end face 201, a rear end face 202, and a support surface 203 with the outer side of the rear end face. The end of the support surface 203 is provided with a positioning hole.

[0033] For details, please refer to [link / reference]. Figure 3-7 A gearbox housing processing and positioning device includes a base 2, on which a front-end positioning mechanism 1 and a rear-end positioning mechanism 4 are fixedly mounted, i.e., both the front-end positioning mechanism 1 and the rear-end positioning mechanism 4 are fixed on the base 2. The front-end positioning mechanism 1 includes an end positioning plate 11 and a limiting component and a clamping component 14 fixed on the end positioning plate, used to position the front end face 201 of the gearbox housing 200; the rear-end positioning mechanism 4 includes a clamping component for clamping the support surface 203 of the gearbox housing, and a support component for limiting the rear end face 202 of the gearbox housing.

[0034] Specifically, the end positioning plate 1 has a positioning hole 15 at its center. The limiting component and the clamping component 14 are located on the outer periphery of the positioning hole 15. The limiting component includes a positioning pin 12 and a limiting shaft 13. It is used for initial positioning of the front end face 201, that is, aligning the front end face 201 of the gearbox housing 200 with the positioning hole 15 and placing it on the end positioning plate 1, between the limiting shafts 13, so that the center of the front end face of the gearbox housing 200 is approximately aligned with the center of the positioning hole 15. Then, align the positioning hole on the front end face 201 with the position of the positioning pin 12, and move the gearbox housing 200 to connect the two. Continue to move until the front end face 201 is pressed tightly against the end positioning plate 1 to achieve initial positioning.

[0035] The clamping assembly 14 is as follows Figure 4 As shown, it includes a support column 144 and a limiting seat 143 fixed on an end positioning plate. A pressure plate 141 is movably sleeved on the support column. The rear end of the pressure plate is connected to the limiting seat via an elastic element (such as a spring). A locking element 142 is installed on the support column above the pressure plate. In this embodiment, the support column 144 can be a long screw, and the locking element 142 can be a nut. The two are connected by a thread to achieve tightening or loosening. That is, after loosening the locking element 142, since the rear end of the pressure plate is connected to the limiting seat via a spring, the pressure plate moves to the top under the elastic force of the spring; while the pressure plate 141 can rotate freely on the support column 144, so the front end of the pressure plate 141 can be adjusted to the front end face 201, and then the locking element 142 is tightened so that the front end of the pressure plate 141 is tightly pressed onto the front end face 201, thereby fixing it.

[0036] To enhance the structural stability of the end positioning plate, reinforcing plates 16 are fixed on both sides of the end positioning plate 11.

[0037] like Figure 6 As shown, the clamping assembly includes a base 41 fixed on the base 2. A second clamping component 43 and a first bottom limiting post 45 are mounted on the base 41 via a support frame 42. The positioning holes on the support surface 203 are inserted into the first bottom limiting post 45, and then clamped by the second clamping component 43. In this embodiment, the structure of the second clamping component 43 is the same as... Figure 4 The structure of the clamping component 14 is the same as that in the previous one, so it will not be described again here.

[0038] Place the rear end face 202 of the gearbox housing 200 on the clamping assembly, align the positioning hole on its support surface 203 with the bottom limit post 45, and then adjust the clamping assembly 43 to clamp it.

[0039] To ensure the stability and reliability of the rear end face 202, a second side limiting post 44 is fixedly provided on one side of the clamping assembly 43, and a third side limiting post 46 is installed on the support frame 42. The second side limiting post 44 and the third side limiting post 46 are arranged in the same direction and have the same structure. The third side limiting post 46 includes a limiting post threadedly connected to the support frame 42. A knob is installed at the rear end of the limiting post. By rotating the knob, the length of the limiting post is adjusted so that its free end abuts against the outer wall of the rear end face 202. In this embodiment, the second side limiting post 44 and the third side limiting post 46 have different heights. The purpose of setting them simultaneously is to abut against different positions on the outer wall of the rear end face 202 and prevent displacement.

[0040] In another embodiment, a bottom limiting post 47 is fixedly mounted on the base 41 located on one side of the support frame 42, and a bottom support member 48 is installed on the side wall of the support frame 42 to support the bottom end of the rear end face 202. The bottom support member 48 is as follows: Figure 7 As shown, the system includes a base block 481, on which a mounting plate 483 is movably mounted. The mounting plate 483 is connected to the base block 481 via adjusting bolts 484, allowing the horizontal position of the mounting plate 483 to be adjusted by rotating the adjusting bolts 484. An arc-shaped pressure block 482 is movably mounted on the upper part of the mounting plate 483. Specifically, the arc-shaped pressure block 482 is connected to the mounting plate 483 via a pin, and its top surface conforms to the external shape of the rear end face 202. The position of the arc-shaped pressure block 482 is adjusted so that it rests comfortably on the bottom end of the rear end face 202, and then it is fixed to the mounting plate 483 using fixing bolts.

[0041] In another embodiment, a side positioning mechanism 3 is further included for abutting the other side of the rear end face 202, the side positioning mechanism 3 as follows: Figure 5 As shown, it includes a fixed seat 31 mounted on a base 2, and the fixed seat 31 is equipped with a side limiting post 33 via a triangular bracket 32.

[0042] The side limiting post 33 and the side limiting post 44 have the same structure, but are oriented oppositely. That is, the side limiting post 33, the side limiting post 44, and the side limiting post 46 are located on both sides of the rear end face 202, respectively, and they abut against both sides of the rear end face 202, thereby further strengthening the positioning stability of the rear end face 202.

[0043] The processing and positioning device 100 of this utility model is used to position the gearbox housing 200, and its assembly structure is as follows: Figure 2 As shown. The specific positioning process is as follows:

[0044] First, align the front end face 201 of the gearbox housing 200 with the positioning hole 15 and place it on the end positioning plate 1. Then, align the positioning hole on the front end face 201 with the position of the positioning pin 12. Then, press and fix the periphery of the front end face 201 with multiple clamping components 14.

[0045] Next, place the rear end face 202 of the gearbox housing 200 on the clamping assembly, aligning the positioning hole on its support surface 203 with the bottom limit post 45, and then adjust the clamping assembly 43 to clamp it. Then adjust the position of the arc-shaped pressure block 482 on the bottom support 48 so that it can be easily supported at the bottom end of the rear end face 202, and then use fixing bolts to fix it on the mounting plate 483.

[0046] Finally, the lengths of the side limiting posts 24, 36, and 43 located on both sides of the rear end face 202 will be adjusted so that they abut against both sides of the rear end face 202, thereby further enhancing the positioning stability of the rear end face 202.

[0047] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application shall be within the scope of protection of the claims of this application.

Claims

1. A machining and positioning device for a gearbox housing, comprising a base (2), characterized in that: The base (2) is fixedly provided with a front positioning mechanism (1) and a rear positioning mechanism (4). The front positioning mechanism (1) includes an end positioning plate (11) and a limiting component and a pressing component (14) fixed on the end positioning plate. The rear positioning mechanism (4) includes a clamping component for clamping the support surface (203) of the gearbox housing and a support component for limiting the rear end surface (202) of the gearbox housing. The end positioning plate (11) has a positioning hole (15) in the center. The limiting component and the pressing component (14) are located on the outer periphery of the positioning hole (15). The limiting component includes a positioning pin (12) and a limiting shaft (13). The clamping assembly includes a base (41) fixed on the base (2), and a second clamping assembly (43) and a bottom limiting post (45) are installed on the base (41) via a support frame (42); after the positioning hole on the support surface (203) is inserted into the bottom limiting post (45), it is clamped by the second clamping assembly (43); a second side limiting post (44) is fixed on one side of the second clamping assembly (43), and a third side limiting post (46) is installed on the support frame (42). The second side limiting post (44) and the third side limiting post (46) are arranged in the same direction and have the same structure.

2. The processing positioning device according to claim 1, characterized in that: The clamping assembly (14) includes a support column (144) and a limiting seat (143) fixed on the end positioning plate. A pressure plate (141) is movably sleeved on the support column. The rear end of the pressure plate is connected to the limiting seat through an elastic element. A locking element (142) is installed on the support column above the pressure plate.

3. The processing positioning device according to claim 2, characterized in that: Reinforcing plates (16) are fixed on both sides of the end positioning plate (11).

4. The processing positioning device according to claim 1, characterized in that: The side limiting post three (46) includes a limiting post threadedly connected to the support frame (42), and a knob is installed at the rear end of the limiting post.

5. The processing positioning device according to claim 1, characterized in that: A bottom limiting post 2 (47) is fixed on the base (41) located on one side of the support frame (42). A bottom support member (48) is installed on the side wall of the support frame (42). The bottom support member (48) includes a base block (481). An installation plate (483) is movably installed on the base block (481). An arc pressure block (482) is movably installed on the upper part of the installation plate (483).

6. The processing positioning device according to claim 1, characterized in that: It also includes a side positioning mechanism (3), which includes a fixed seat (31) installed on the base (2), and the fixed seat (31) is equipped with a side limiting post (33) via a triangular bracket (32).

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