Adjustable special vehicle crank arm drilling tool clamp

Abstract

The utility model provides an adjustable special vehicle crank arm drilling tool clamp. The adjustable special vehicle crank arm drilling tool clamp comprises a support, a support, a placing plate, a lead screw, a sliding rail, a V-shaped block, a drill bushing, a first supporting seat and a second supporting seat. According to the distance between crank arm positioning holes, the first supporting base and the second supporting base are moved to proper positions on the sliding rail and then locked, and tensioning and loosening of the V-shaped block are achieved through the lead screw so as to tightly hold the outer circle of a crank arm to be machined. After the crank arm is fixed, the drill bit drills holes through the drill sleeve. In order to realize only one-time clamping, the tool clamp disclosed by the utility model can turn over up and down, so that turning-around processing is realized on the premise that the crank arm to be processed is not disassembled. According to the crank arm drilling device, one-time clamping and positioning of a crank arm in the drilling process can be achieved, parts do not need to be disassembled repeatedly, and meanwhile machining of crank arm positioning holes with different center distances can be met; the crank arm drilling device can facilitate drilling of crank arms by operators, is simple and safe to operate, reduces labor intensity, and improves machining efficiency and machining precision of crank arm positioning holes.

Description

Technical Field

[0001] This utility model belongs to the field of tooling and fixture technology, specifically relating to an adjustable special vehicle articulated boom drilling tooling and fixture. Background Technology

[0002] The articulated boom is a key component of the special vehicle's mobility system. During machining, drilling is the first step, providing positioning references for subsequent processing. The positional accuracy and center distance between these reference holes are fundamental to ensuring the dimensional accuracy of other parts of the articulated boom during machining, directly impacting the final product quality. Traditionally, articulated boom positioning hole machining involves manual scribing and drilling, requiring multiple part flips during the process, resulting in poor machining accuracy and low efficiency. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] This utility model proposes an adjustable special vehicle boom drilling fixture to solve the technical problems of low processing efficiency and poor processing accuracy of boom positioning holes, realize the flexibility of the fixture, and meet the processing of boom parts of different specifications.

[0005] (II) Technical Solution

[0006] To address the aforementioned technical problems, this utility model proposes an adjustable special vehicle boom drilling fixture, which includes a bracket, a support, a placement plate, a lead screw, a slide rail, a V-block, a drill bushing, a first support base, and a second support base; wherein...

[0007] Positioning plates are installed on the left and right sides of the placement plate, and the placement plate is rotatably connected to the brackets on both sides; the bottom of the brackets is fixed to the worktable of the drilling machine by the support.

[0008] Multiple sets of slide rails are installed on the surface of the placement plate. Among them, the slide rails located at the top and bottom ends serve as drill sleeve mounting slide rails, on which drill sleeves are installed to guide the drill bit. The slide rail located inside the two sets of drill sleeve mounting slide rails serves as the first support seat mounting slide rail, on which a first support seat is installed. Inside the first support seat, two V-blocks are installed opposite each other. A screw is installed on the V-block to drive the V-block to move horizontally. The screw can drive the V-block to tension and loosen, so as to hold the outer circle of the curved arm to be drilled. The two sets of slide rails located on both sides of the rotation axis of the placement plate serve as the second support seat mounting slide rails, on which second support seats are installed to install drill sleeves that guide the drill bit.

[0009] Furthermore, positioning plates are installed on the left and right sides of the placement plate, and the placement plate is rotatably connected to the brackets on both sides through the positioning plates.

[0010] Furthermore, a bracket end cap is provided on the outer side of the connection between the positioning plate and the bracket.

[0011] Furthermore, the bracket is equipped with positioning pins for securing the placement plate.

[0012] Furthermore, multiple sets of slide rails are installed on the surface of the placement plate in a rotationally symmetrical manner.

[0013] Furthermore, the second support is smaller than the first support.

[0014] (III) Beneficial Effects

[0015] This invention proposes an adjustable drilling fixture for articulated booms of special vehicles, comprising a bracket, a support, a placement plate, a lead screw, a slide rail, a V-block, a drill sleeve, a first support seat, and a second support seat. Based on the distance between the positioning holes of the articulated boom, the first and second support seats are moved to appropriate positions on the slide rail and locked. The lead screw tensions and releases the V-block to hold the outer circle of the articulated boom to be processed. After fixing the articulated boom, the drill bit drills through the drill sleeve. To achieve a single clamping operation, the fixture can be flipped up and down, allowing for turning and processing without disassembling the articulated boom. This invention enables the articulated boom to be clamped and positioned in one operation during drilling, eliminating the need for repeated disassembly of parts. It can also accommodate the processing of positioning holes with different center distances. It facilitates drilling of the articulated boom by operators, is simple and safe to operate, reduces labor intensity, and improves the processing efficiency and accuracy of the positioning holes. Attached Figure Description

[0016] Figure 1 This is the main view of the adjustable articulated boom drilling fixture for special vehicles according to this utility model.

[0017] Figure 2 This is a side view of the adjustable special vehicle boom drilling fixture of this utility model.

[0018] In the diagram: 1-bracket, 2-support, 3-positioning plate, 4-placement plate, 5-positioning pin, 6-lead screw, 7-slide rail, 8-V-block, 9-drill bushing, 10-first support seat, 11-second support seat, 12-bracket end cap. Detailed Implementation

[0019] To make the objectives, contents, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0020] This embodiment proposes an adjustable special vehicle boom drilling fixture, the structure of which is as follows: Figure 1 and 2As shown, it mainly includes bracket 1, support 2, positioning plate 3, placement plate 4, positioning pin 5, lead screw 6, slide rail 7, V-block 8, drill sleeve 9, first support seat 10, second support seat 11, and bracket end cap 12.

[0021] Positioning plates 3 are installed on the left and right sides of the placement plate 4. The placement plate 4 is rotatably connected to the supports 1 on both sides through the positioning plates 3, allowing the placement plate 4 to rotate 360 ​​degrees on the supports 1 with the positioning plates 3. A support end cap 12 is provided on the outer side of the connection between the positioning plates and the supports 1. The bottom of the supports 1 is fixed to the worktable of the drilling machine by the support 2. Positioning pins 5 are installed on the supports 1 to fix the placement plate 4, ensuring the stability of the placement plate 4 on the supports 1 and preventing the placement plate 4 from shaking due to external forces during drilling.

[0022] Multiple sets of slide rails 7 are mounted symmetrically on the surface of the placement plate 4. The slide rails 7 at the top and bottom ends serve as drill sleeve mounting rails, on which drill sleeves 9 are mounted to guide the drill bit. The slide rails 7 located inside the two sets of drill sleeve mounting rails serve as first support seat mounting rails, on which first support seats 10 are mounted. Inside the first support seat 10 are two opposing V-blocks 8, and screws 6 are mounted on the V-blocks 8 to drive their horizontal movement. The screws 6 can tension and loosen the V-blocks 8 to grip the outer diameter of the curved arm to be drilled. The two sets of slide rails 7 located on either side of the rotation axis of the placement plate 4 serve as second support seat mounting rails, on which second support seats 11 are mounted. The second support seats 11 are smaller than the first support seats 10 and are used to mount the drill sleeves 9 that guide the drill bit.

[0023] This utility model discloses an adjustable special vehicle boom drilling fixture. Considering the different sizes of the center holes of the boom, a slide rail mechanism is designed to achieve the universality of the fixture and meet the processing needs of booms with different center distances. In use, according to the distance between the positioning holes of the boom, the first support seat 10 and the second support seat 11 are moved to the appropriate position on the slide rail 7 and locked. The V-block 8 is tensioned and released by the lead screw 6 to hold the outer circle of the boom to be processed. After the boom is fixed, the drill bit drills through the drill sleeve 9. In order to achieve only one clamping, this utility model's fixture can be flipped up and down, allowing turning and processing without disassembling the boom to be processed. After processing the two positioning holes at the upper end of the boom, the positioning pin 5 is pulled out, the positioning plate 3 and the boom are rotated 180 degrees, and the positioning pin 5 is reinserted for fixation. Then, the two positioning holes at the lower end of the boom can be processed, ensuring that the centers of the two upper positioning holes are aligned with the two lower positioning holes.

[0024] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An adjustable special vehicle bell crank drilling fixture, characterized by, The adjustable special vehicle curved arm drilling tool clamp comprises a support, a support base, a placing plate, a lead screw, a sliding rail, a V-shaped block, a drill sleeve, a first support base and a second support base, The left and right sides of the placing plate are respectively provided with positioning discs, and the placing plate is rotationally connected with the supports on the two sides; The surface of the placing plate is provided with a plurality of groups of sliding rails; 2. The adjustable special vehicle bell crank drilling fixture of claim 1, wherein, The left and right sides of the placing plate are respectively provided with positioning discs, and the placing plate is rotationally connected with the supports on the two sides through the positioning discs.

3. The adjustable special vehicle bell crank drilling fixture of claim 2, wherein, The outer side of the connection between the positioning disc and the support is provided with a support end cover.

4. The adjustable special vehicle bell crank drilling fixture of claim 1, wherein, The support is provided with a positioning pin for fixing the placing plate.

5. The adjustable special vehicle bell crank drilling fixture of claim 1, wherein, The surface of the placing plate is provided with a plurality of groups of sliding rails in a rotary shaft symmetry mode.

6. The adjustable special vehicle bell crank drilling fixture of claim 1, wherein, The size of the second support base is smaller than that of the first support base.

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