Special-shaped I-shaped rail cutting clamp
By designing a special-shaped I-beam track cutting fixture, the problems of poor angle positioning accuracy, complex process, unstable fixation and material waste in I-beam track processing were solved, realizing efficient and accurate processing of special-shaped I-beam tracks.
Patent Information
- Application Number
- CN202520168550.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-01-23
AI Technical Summary
The existing processing of I-beam rails suffers from problems such as poor angular positioning accuracy, complex procedures, unstable fixing, inability to process continuously, and material waste.
A special-shaped I-beam track cutting fixture was designed, comprising a base, angle limiting blocks, and bolt columns. By setting symmetrical angle limiting blocks and a stepped structure on the base, angular accuracy is ensured, and the bolt columns achieve stable fixation of the workpiece. Combined with scale lines, the machining accuracy and efficiency are improved.
It improves the processing quality and efficiency of I-beam tracks, simplifies the operation process, reduces material waste, and significantly improves processing accuracy and continuous processing capability.
Smart Images
Figure CN223876204U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the I -beam track processing equipment technical field especially relates to a special-shaped I -beam track cutting clamp. BACKGROUND
[0002] I -beam track is a kind of track structure for the equipment operation, its cross section presents " I " character shape, is widely used in various industrial fields, especially in the large crane track system of steel enterprise.This track has the characteristics of strong bearing capacity, good stability, is the important infrastructure of guaranteeing the safe operation of hoisting equipment.
[0003] In actual use process, when I -beam track appears fracture or joint damage, need to increase special-shaped I -beam track head to repair to restore the normal operation function of track.This repair method requires that the newly added I -beam track head must have parallelogram or trapezoidal bevel surface to ensure close cooperation with the original track and realize reliable connection.At present, fixed band saw is mainly used to cut and process I -beam track to produce required special-shaped track head.
[0004] The existing I -beam track processing mainly relies on fixed band saw cutting.In specific operation, first need to cut I -beam track into long strip short section, then angle processing is carried out to short section.Because I -beam track has the characteristics of long length and heavy weight, and fixed band saw cannot adjust cutting angle, the following technical problems are caused: firstly, angle positioning accuracy is difficult to guarantee, which influences the connection quality of track joint;Secondly, it is necessary to mark and position workpiece before processing, which increases process complexity;Thirdly, workpiece is not fixed stably, which influences cutting accuracy;Finally, continuous processing cannot be realized, which reduces processing efficiency.In addition, the existing process also has the problem that the two straight triangle parts need to be removed after cutting, causing material waste.
[0005] Therefore, there is an urgent need for a device capable of simplifying processing flow and realizing accurate processing of bevel surface of I -beam track. UTILITY MODEL CONTENTS
[0006] The utility model aims at providing a special-shaped I -beam track cutting clamp to solve the technical problems that the existing fixed band saw has poor angle positioning accuracy, needs to be pre-marked, workpiece is not fixed stably, cannot be continuously processed and has material waste when processing special-shaped I -beam track.
[0007] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme:
[0008] The utility model provides a special-shaped I-shaped rail cutting clamp, including the cuboid base, vertical bolt stand is established on the base upper surface, the upper end of bolt stand is fixed through the fixed clamping plate, the lower end of bolt stand is fixed in the threaded hole of base through the threaded connection in advance,
[0009] Angle limiting block is arranged on the base upper surface and is used for limiting the cutting angle of I-shaped rail, two angle limiting blocks are fixed on the left side and the right side of base upper surface respectively and symmetrically, the inner side of each angle limiting block and the horizontal long axis of base form acute angle theta,
[0010] The width W between the two angle limiting blocks satisfies W=L / cos theta+m, wherein L is the width of I-shaped rail, and m is the operation allowance.
[0011] Preferably, the base is provided with a step, the step divides the base into a positioning part and a cutting part, the positioning part is located on the high plane of the step and is used for placing and positioning the I-shaped rail to be cut, and the cutting part is located on the low plane of the step and is used for supporting the I-shaped rail during cutting.
[0012] Preferably, a scale line is arranged on the upper surface of the cutting part and extends to the machining moving direction of the I-shaped rail with the vertical plane of the step as the zero point.
[0013] Preferably, the angle limiting block is arranged on the positioning part of the base.
[0014] Preferably, the bolt stand is arranged on the positioning part of the base.
[0015] Preferably, the bolt stand has two.
[0016] Preferably, the bolt stand is arranged outside the angle limiting block.
[0017] Preferably, the inner side of each angle limiting block and the horizontal long axis of the base form an acute angle theta of 45 degrees.
[0018] Preferably, the operation allowance m is 10-20 mm.
[0019] Compared with the prior art, the utility model has the beneficial effects that:
[0020] The special-shaped I-shaped rail cutting clamp provided by the utility model solves the technical problems of poor angle positioning precision, complex process, unstable fixation, low machining efficiency and material waste during I-shaped rail cutting in the prior art, and significantly improves the machining quality and efficiency of the special-shaped I-shaped rail.
[0021] Specifically, the utility model discloses a symmetrical angle limiting block is set up on the base, and the inner side of limiting block and base axis form specific acute angle, and satisfy the mathematical relation of W=L / cos theta + m, ensure the angle accuracy when I -beam track cutting, do not need additional marking and positioning process, solve the problem of angle positioning difficult, through setting up the ladder structure on the base, divide the base into the positioning part of high plane and the cutting part of low plane, make cutting saw blade be located in the low plane area when cutting work piece, effectively avoid the damage to the fixture base in the cutting process, prolong the service life of fixture, through setting up angle limiting block and bolt stand in the positioning part, realize the stable fixation of work piece, solve the problem of unstable fixation of work piece, through setting up the scale line on the cutting part upper surface, convenient for operator to judge cutting position directly, improve the processing accuracy, through setting up bolt stand outside angle limiting block, make the device structure more compact, be favorable to batch processing, solve the problem of low continuous processing efficiency, through the reasonable design of angle limiting structure, work piece one -time positioning can complete cutting, avoid the problem that need to remove two right angle triangle parts in traditional technology, save material cost.
[0022] The special-shaped I-beam track cutting clamp provided by the utility model not only improves the machining precision and efficiency, simplifies the operation process, reduces material loss, has good economic benefits and use value, and can effectively meet the machining demand of the special-shaped I-beam track in industrial production. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 It is a structure schematic view of the preferred embodiment of the utility model;
[0024] Figure 2 It is a structure schematic view of the I-beam track in the preferred embodiment of the utility model.
[0025] In the drawing: 1, base; 2, angle limiting block; 3, fixed clamping plate; 4, bolt stand; 5, I-beam track; 6, ladder. DETAILED DESCRIPTION
[0026] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, and all other embodiments obtained by the person skilled in the art on the premise of not making creative labor based on the embodiments in the utility model all belong to the protection scope of the utility model.
[0027] As shown in Figure 1 and Figure 2 :
[0028] A special-shaped I-beam track 5 cutting clamp, comprising: including base 1, angle limiting block 2, fixed clamping plate 3 and bolt stand 4.
[0029] The base 1 is in a cuboid structure, and a step 6 is arranged on the base 1, which divides the base 1 into a positioning part and a cutting part: the positioning part is located on the high plane of the step 6, and the upper surface thereof is higher than that of the cutting part, and is used for placing and positioning the I-beam track 5 to be cut, and mainly cooperates with the angle limiting block 2 and the fixed clamping plate 3 to complete the angle adjustment and fixation of the I-beam track 5; the cutting part is located on the low plane of the step 6, and the upper surface thereof is lower than that of the positioning part, and is used for supporting the I-beam track 5 during cutting. The upper surface of the cutting part is provided with a scale line, which extends to the machining moving direction of the I-beam track 5 with the vertical plane of the step 6 as the zero point. Although the band saw is not shown in the figure, in actual use, the band saw blade used for cutting the I-beam track 5 cuts at the position corresponding to the vertical plane of the step 6.
[0030] The angle limiting block 2 is provided with two, which are fixed on the left and right sides of the positioning part of the base 1 and are symmetrically arranged. The cutting angle of the I-beam track 5 can be adjusted through the angle limiting block 2, so as to meet different cutting requirements. The end of the I-beam track 5 can be closely attached to the edge of the angle limiting block 2 for angle positioning.
[0031] The angle of the angle limiting block 2 is a fixed value, which determines the fixed angle of the I-beam track 5 when entering the cutting position. Based on the fixed angle, the optimal width between the two angle limiting blocks 2 can be calculated: when the I-beam track 5 is placed at the fixed angle, the width between the two angle limiting blocks 2 should ensure that the I-beam track 5 can basically fit the angle limiting block, so as to ensure the accuracy of the cutting angle.
[0032] Specifically, the width W of the base 1 can be determined according to the following factors:
[0033] The maximum width L of the I-beam track 5;
[0034] The fixed angle θ set by the angle limiting block 2;
[0035] Through the trigonometric relationship, the optimal width between the two angle limiting blocks 2 is L / cos θ; in actual operation, the operation allowance m needs to be considered, so the width W between the two angle limiting blocks 2 is L / cos θ+m.
[0036] The optimal width design based on the fixed angle can ensure that the I-beam track 5 is fully supported, avoid material waste caused by excessive size of the base, and make the whole device structure more compact and reasonable.
[0037] In actual processing, the fixed angle set by the angle limiting block 2 is 45°, which is relative to the vertical line of the length direction of the base 1. The selection of the angle is mainly based on the most common bevel cutting requirement of the I-beam track 5 in engineering application, that is, the requirement of forming a 45° bevel interface. This 45° bevel cutting is most commonly used for the manufacture of corner connecting parts of the I-beam track 5.
[0038] Specifically, the width W of the base 1 can be determined according to the following factors:
[0039] If the standard width L of the I-beam track 5 is 100mm, then the optimal width W between the two angle limit blocks 2 is 100* cos 45°≈70.7mm; considering the operation margin of 10-20mm, the actual design width should be 80-90mm.
[0040] Considering the actual operation needs and processing errors, the width between the two angle limit blocks 2 should be 10-20mm larger than the theoretically obtained optimal width W. This margin can ensure the operation space for placing and adjusting the workpiece, and will not cause too much material waste. Too small spacing will affect the placement operation of the workpiece, while too large spacing will increase the material cost and reduce the compactness of the equipment.
[0041] The fixed clamping plate 3 is in a plate-like structure and is installed at the upper end of the base 1. The fixed clamping plate 3 serves to press and fix the I-beam track 5 to be processed, preventing the I-beam track 5 from moving or shaking during cutting. The fixed clamping plate 3 is made of a metal material with appropriate hardness to ensure sufficient strength and durability.
[0042] The bolt column 4 is vertically arranged on the positioning part of the base 1 and penetrates the fixed clamping plate 3. In this embodiment, two bolt columns 4 are provided, which are located outside the left and right angle limit blocks 2, respectively, to ensure that the I-beam track 5 does not collide with the bolt column 4 when adjusting the angle, and the distance between the bolt columns can be minimized to reduce the size of the base to some extent. The lower end of the bolt column 4 is threadedly connected to the threaded hole pre-processed on the base 1, and the pressing force of the fixed clamping plate 3 can be adjusted by the nut, thereby realizing reliable fixation of different specifications of the I-beam track 5.
[0043] Working principle:
[0044] The special-shaped I-beam track 5 machining clamp of the utility model can realize four different machining processes, which are as follows:
[0045] The first machining process is suitable for continuous machining of parallelograms of long I-beam tracks 5. After placing the long I-beam track 5 into the clamp, the angle limit block is positioned according to the required bevel direction. The workpiece can be continuously fed in the cutting direction, and the cutting position is determined by the scale line of the cutting part to realize continuous machining of multiple parallelogram workpieces.
[0046] The second machining process is used for continuous machining of trapezoids of the long I-beam 5. Firstly, the cutting of the first bevel is completed, then the tail of the workpiece is swung to be positioned at the angle limiting block at the other side. By setting the length of the workpiece, the second cutting is carried out, and thus the machining of a trapezoidal workpiece is completed. In the machining of subsequent workpieces, the angle limiting blocks at the two sides are alternately used for positioning, and thus the cutting of trapezoidal workpieces can be continuously completed.
[0047] The third machining process realizes the simultaneous machining of parallelograms and trapezoids. After the cutting of the first end bevel is completed, the cutting of parallelograms and trapezoids is alternately carried out by combining the operation methods of the first and second processes. In this way, two workpieces with different shapes can be simultaneously produced according to actual requirements.
[0048] The fourth machining process is the machining process of waste short sections. Firstly, the waste I-beam 5 short section is placed in the clamp, and the cutting of the first section is carried out after positioning by the angle limiting block. After the cutting is completed, the workpiece is turned by 180 degrees, and the cutting of the second section is completed by positioning by the angle limiting block again. According to actual requirements, the I-beam head with parallelogram or trapezoid shape can be machined by adjusting the contact mode of the workpiece and the angle limiting block.
[0049] The above only describes the preferred embodiments of the present application, and is not used to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A profiled rail web cutting jig, characterised in that, The utility model relates to a cutting device for I-beam, which comprises: a long strip-shaped base (1) vertically provided with a bolt stand (4) on the upper surface of the base (1); the upper end of the bolt stand (4) penetrates through a fixed clamping plate (3); the lower end of the bolt stand (4) is fixed in a threaded hole pre-processed on the base (1) through screw connection; two angle limiting blocks (2) for limiting the cutting angle of the I-beam (5) are arranged on the upper surface of the base (1); the two angle limiting blocks (2) are symmetrically arranged on the left and right sides of the upper surface of the base (1) respectively; the inner side surface of each angle limiting block (2) forms an acute angle θ with the horizontal long axis of the base (1); the width W between the two angle limiting blocks (2) satisfies the condition: W=L / cosθ+m; wherein, L is the width of the I-beam (5), and m is the operation allowance.
2. A profiled rail cutting jig according to claim 1, characterised in that, a step (6) is arranged on the base (1), which divides the base (1) into a positioning part and a cutting part; the positioning part is located on the high plane of the step (6) and is used for placing and positioning the I-beam (5) to be cut; the cutting part is located on the low plane of the step (6) and is used for supporting the I-beam (5) during cutting.
3. A profiled rail section cutting jig according to claim 2, wherein, a scale line is arranged on the upper surface of the cutting part and extends to the moving direction of the I-beam (5) with the vertical plane of the step (6) as the zero point.
4. A profiled rail section cutting jig according to claim 2, wherein The angle limiting block (2) is arranged on the positioning part.
5. A profiled rail section cutting jig according to claim 2, wherein The bolt stand (4) is arranged on the positioning part of the base (1).
6. A profiled rail section cutting jig according to claim 1 or 5, wherein The bolt stand (4) has two.
7. A profiled rail section cutting jig according to claim 1 or 5, wherein The bolt stands (4) are respectively arranged on the outer side of the angle limiting blocks (2).
8. A profiled rail section cutting jig according to claim 1, wherein The acute angle θ formed by the inner side surface of each angle limiting block (2) and the horizontal long axis of the base (1) is 45 degrees.
9. A profiled rail section cutting jig according to claim 1, wherein The operation allowance m is 10mm-20mm.