Clamping and fixing mechanical device applied to milling of trolley breast board

Abstract

The utility model discloses a clamping and fixing mechanical device applied to milling of a trolley breast board, which has a plurality of distance adjusting functions so as to meet the positioning and fixing requirements of breast boards with different specifications. According to the utility model, a method of combining the positioning block and the clamping device is adopted, and the accuracy and the safety in the machining process of the trolley sideboard are ensured through accurate positioning and stable clamping force. Under the condition that the heights of different machine tool workbenches are different, the arrangement of the supporting plate and the bottom plate can be flexibly suitable for different working heights, and the device has the advantages of being simple in structure, convenient to operate and wide in application range.

Description

Technical Field

[0001] The utility model relates to the field of mechanical devices, in particular to a clamping and fixing mechanical device used for milling processing of trolley railings. Background Art

[0002] In the actual processing and production process, the four end faces of the trolley railing need to be processed and milled. Due to the limited machine tool stroke and the unevenness of the railing, the longitudinal and lateral adjustment ranges of the clamping device are limited, and there is a risk of spacing resulting in the workpiece not being clamped tightly. If designed according to conventional standards, the site cannot meet the requirements of fixed clamping on one side and milling on the other side, as well as the adjustment of external dimensional errors during clamping. During actual processing, it is easy to shake and cause deviations, which cannot meet the precision requirements. Utility Model Content

[0003] The purpose of this utility model is to design and develop a clamping and fixing mechanical device for the milling processing of trolley railings, which can adjust a variety of distances and meet the adjustment and fixing requirements of the railing position.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A clamping and fixing mechanical device used for milling trolley railings, comprising a top plate fixed to a machine tool worktable by a pressure plate, a positioning block and a clamping device mounted on the top plate, the top plate being rectangular, the clamping and fixing device mounted on the top plate, the clamping and fixing device comprising positioning blocks and a clamping device, a plurality of positioning blocks being located on one side of a long side of the top plate, a plurality of positioning blocks being located on one side of a short side of the top plate, and a clamping device being arranged correspondingly to a positioning block;

[0006] The clamping device includes a screw, a slider, a pair of slider positioning blocks and a fixed block. The fixed block is fixed to the same side end of the two slider positioning blocks. There is a slideway between the two slider positioning blocks. The slider is slidably arranged in the slideway. The slider positioning block prevents the lateral movement of the slider and provides a guide for the longitudinal movement of the slider. The height of the slider is greater than the slider positioning block and the fixed block. A threaded hole is provided in the center of the slider for rotational connection with the screw. A nut is installed at one end of the screw, and the other end is against the fixed block.

[0007] As a further preferred solution, the positioning block is provided with a step surface, and the step height is the same as the height of the slider extending out of the slider positioning block.

[0008] As a further preferred solution, a support plate and a bottom plate are welded in sequence below the top plate.

[0009] As a further preferred solution, a plurality of arc-shaped opening structures are symmetrically provided on the left and right sides of the base plate, and the base plate is fixed to the machine tool worktable by means of bolts passing through the plurality of arc-shaped opening structures.

[0010] As a further preferred solution, the position distance between the positioning block and the clamping device can be adjusted according to the size of the trolley guardrail. Beneficial effects

[0011] The utility model has the following beneficial effects:

[0012] This utility model first secures one side of the railing with a positioning block, ensuring accurate initial positioning. Subsequently, the other side is clamped using a clamping device. The adjusting screw in the clamping device can be rotated to adjust the slider over multiple distances, thus adjusting the overall dimensional error when clamping both sides. This design replaces traditional non-adjustable positioning devices, ensuring the secure clamping of the trolley railing and significantly improving the accuracy of machining and positioning.

[0013] When the worktables of different machine tools have different heights, the setting of the support plate and the base plate can be flexibly applied to different working heights, and has the characteristics of simple structure, easy operation and wide application range. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the overall structural diagram of the top plate of the utility model;

[0015] Figure 2 This is a top view of the clamping device of the utility model;

[0016] Figure 3 This is a front view of the clamping device of the utility model;

[0017] Figure 4 This is a side view of the overall structure of the utility model;

[0018] Figure 5 It is a top view of the overall structure of the utility model.

[0019] The components include: 1. top plate; 2. bottom plate; 3. support plate; 4. positioning block; 5. clamping device; 51. screw; 52. slider; 53. slider positioning block; 54. fixing block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] like Figure 1-3 As shown, the utility model discloses a clamping and fixing mechanical device for milling trolley railings, comprising a top plate 1 fixed to a machine tool worktable by a pressure plate, a clamping and fixing device installed on the top plate 1, the clamping and fixing device comprising a positioning block 4 and a clamping device 5, two positioning blocks 4 being located on one side of the long side of the top plate 1, and one positioning block 4 being located on one side of the short side of the top plate 1, the clamping device 5 and the positioning blocks 4 corresponding to each other in position, the clamping device 5 comprising a screw 51, a slider 52, a pair of slider positioning blocks 53 and a fixed block 54, the slider positioning blocks 53 being fixedly installed on both sides of the fixed block 54, the slider positioning blocks 53 having a sliding space for the slider 52 to move, the slider 52 being higher than the slider positioning blocks 53 and the fixed block 54, the slider 52 having a threaded hole in the center thereof being rotatably connected to the screw 51, one end of the screw 51 being installed with a nut, the other end being abutted against the fixed block 54. The outward-facing portion of the positioning block 4 is configured as a stepped surface, the step height being the same as the height of the slider 52 extending beyond the slider positioning block 53.

[0023] In actual application, first, the positioning blocks 4 and clamping devices 5 are fixed according to the size of the trolley guardrail, and the trolley guardrail is placed on the top plate 1. The positioning blocks 4 are used to fix one side of the guardrail. The stepped design of the positioning blocks 5 ensures the precise positioning of the ribs on the guardrail. Then, each clamping device 5 is adjusted, and the nut on one side of the screw 51 is manually rotated. According to the actual workpiece size during on-site processing, the slider 52 is moved to the desired position to achieve the clamping and fixation of the trolley guardrail. The slider positioning blocks 53 on both sides of the slider 52 prevent the slider 52 from lateral movement and provide a guide for the longitudinal movement of the slider 52, reducing errors and making operation easier.

[0024] In this embodiment, the machine tool table is high, so there is no need for the support plate 3 and the bottom plate 2. When the machine tool table is not high enough and the working stroke of the tool head cannot reach the top plate, as shown in the figure, Figure 4-5 As shown, a support plate 3 of appropriate height is welded to the underside of the top plate 1. The support plate 3, the top plate 1, and the positioning blocks 4 and clamping devices 5 on the top plate 1 are fixed to the machine tool work surface via the bottom plate 2. Several arc-shaped openings are symmetrically provided on the left and right sides of the bottom plate 2. These arc-shaped openings allow the bottom plate 3 to be fixed to the machine tool with bolts for subsequent milling work.

[0025] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details of the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all fall within the scope of protection of the present invention.

Claims

1. A clamping and fixing mechanical device for milling a trolley railing, comprising a top plate (1) fixed to a machine tool work surface by a pressure plate, characterized in that: A positioning block (4) and a clamping device (5) are installed on the top plate (1), the top plate (1) is rectangular, and a clamping device is installed on the top plate (1), the clamping device comprising a positioning block (4) and a clamping device (5), a plurality of positioning blocks (4) are located on one side of the long side of the top plate (1), a plurality of positioning blocks (4) are located on one side of the short side of the top plate (1), and one clamping device (5) is arranged correspondingly to one positioning block (4); The clamping device (5) includes a screw (51), a slider (52), a pair of slider positioning blocks (53) and a fixed block (54), wherein the fixed block (54) is fixed to the same side ends of the two slider positioning blocks (53), a slideway is provided between the two slider positioning blocks (53), the slider (52) is slidably arranged in the slideway, the slider (52) is higher than the slider positioning blocks (53) and the fixed block (54), a threaded hole is provided at the center of the slider (52) for rotational connection with the screw (51), a nut is installed at one end of the screw (51), and the other end is abutted against the fixed block (54).

2. The clamping and fixing mechanical device for milling a trolley railing according to claim 1 is characterized in that: The positioning block (4) is provided with a step surface, the step height being the same as the height of the slider (52) extending out of the slider positioning block (53).

3. The clamping and fixing mechanical device for milling a trolley railing according to claim 1 is characterized in that: A support plate (2) and a bottom plate (3) are welded in sequence below the top plate (1).

4. The clamping and fixing mechanical device for milling a trolley railing according to claim 3 is characterized in that: A plurality of arc-shaped opening structures are symmetrically arranged on the left and right sides of the bottom plate (3), and the bottom plate (3) is fixed to the machine tool work surface by means of bolts passing through the plurality of arc-shaped opening structures.

5. The clamping and fixing mechanical device for milling a trolley railing according to claim 1 is characterized in that: The position distance between the positioning block (4) and the clamping device (5) can be adjusted according to the size of the trolley guardrail.

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