Rapid clamping tool for square steel

Abstract

The utility model relates to the technical field of machining, in particular to a square steel rapid clamping tool which comprises a cylindrical base body, and a through square through hole is formed in the center of the cylindrical base body; a penetrating type elastic opening is formed in the side face of the cylindrical base body in the axial direction; adjustable locking bolts are arranged on the two sides of the elastic opening. By arranging the cylindrical base body and by means of the advantage of automatic alignment of the three-jaw chuck, the tedious alignment process when a four-jaw chuck is used is avoided, the square steel clamping time is greatly shortened, and the overall machining progress is accelerated; the tool is mainly composed of the cylindrical base body, the square through hole, the elastic opening and the locking bolt, the structure is simple, an operator only needs to insert square steel into and install the square steel on the three-jaw chuck and tighten or loosen the locking bolt, clamping and disassembling operation can be completed, and operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of lathe machining technology, and in particular to a quick clamping fixture for square steel. Background Technology

[0002] In the daily operations of tire manufacturing companies, cylindrical steel is widely used in the manufacture, maintenance, and upgrading of tire production equipment, serving as a key basic material to ensure the stable operation of tire production lines. However, square steel is more commonly available in the steel market. To meet production demands, companies must process the purchased square steel into the required cylindrical steel.

[0003] In the machining field, traditional lathes typically use four-jaw chucks to clamp square steel when machining it. Each jaw of the four-jaw chuck needs to be adjusted individually. When clamping the workpiece, the operator needs to spend a considerable amount of time on alignment to ensure the positional accuracy and stability of the square steel on the lathe. This process is not only cumbersome but also inefficient, severely impacting the overall machining progress. In contrast, three-jaw chucks have significant advantages when clamping round steel pipes. The three jaws of a three-jaw chuck can be adjusted simultaneously, automatically achieving alignment when clamping round workpieces, greatly improving clamping efficiency and machining accuracy. However, due to the structural characteristics of three-jaw chucks, they cannot directly clamp square steel, which greatly limits their application in square steel machining scenarios. Summary of the Invention

[0004] To address the above problems, this application provides a quick clamping fixture for square steel, comprising: a cylindrical base with a through square hole at its center; an axial through elastic opening on the side of the cylindrical base; and adjustable locking bolts on both sides of the elastic opening.

[0005] In one embodiment, a replaceable polyurethane friction pad is attached to the inner wall of the square through hole. The polyurethane friction pad has a thickness of 1-2 mm and an interlocking grid pattern is pressed onto its surface.

[0006] In one embodiment, wedge-shaped guide blocks are provided on both sides of the cylindrical base, the wedge-shaped guide blocks are located at the edge of the square through hole, and there are at least three wedge-shaped guide blocks.

[0007] In one embodiment, the cylindrical base is provided with positioning bosses at both ends, and the height of the positioning bosses is 5mm-10mm.

[0008] In one embodiment, the outer contour surface of the cylindrical substrate is provided with an anti-oxidation coating.

[0009] In one embodiment, there are two locking bolts, each disposed on the positioning boss.

[0010] In one embodiment, the locking hole of the locking bolt is a countersunk hole, and an anti-loosening nut is provided in the countersunk hole.

[0011] The beneficial effects of this utility model are as follows:

[0012] This application discloses a quick-clamping fixture for square steel, comprising: a cylindrical base with a through square hole at its center; an axially extending elastic opening on the side of the cylindrical base; and adjustable locking bolts on both sides of the elastic opening. The square hole, located at the center of the cylindrical base, is through-hole and its size is adapted to the dimensions of the square steel to be processed, used for inserting and positioning the steel. The elastic opening, located on the side of the cylindrical base, extends axially through the entire cylindrical base, giving it a certain elastic deformation capability. By utilizing the advantage of the cylindrical base's automatic alignment with a three-jaw chuck, the cumbersome alignment process of using a four-jaw chuck is avoided, significantly shortening the clamping time of the square steel and improving the overall processing progress. This fixture mainly consists of a cylindrical base, a square hole, an elastic opening, and locking bolts. Its structure is simple; operators only need to insert and install the square steel onto the three-jaw chuck and tighten or loosen the locking bolts to complete the clamping and disassembly operations, making it convenient to operate. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the assembly structure of this utility model;

[0014] Figure 2 This is the left view of the present invention;

[0015] Figure 3 This is a cross-sectional view of the cylindrical base of this utility model;

[0016] Figure 4 This is a front view of the present utility model;

[0017] Explanation of symbols in the diagram:

[0018] 1. Cylindrical base; 11. Wedge-shaped guide block; 12. Positioning boss;

[0019] 2. Square through hole;

[0020] 3. Flexible opening;

[0021] 4. Tighten the bolts;

[0022] 5. Square steel. Detailed Implementation

[0023] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0024] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0025] like Figure 1 , 2 As shown, a quick clamping fixture for square steel includes: a cylindrical base 1, wherein the cylindrical base 1 has a through square hole 2 at its center; a through elastic opening 3 is provided on the side of the cylindrical base 1 along the axial direction; and adjustable locking bolts 4 are provided on both sides of the elastic opening 3.

[0026] Specifically, the square through hole 2 is located at the center of the cylindrical base 1, and is through-hole. Its size is adapted to the size of the square steel 5 to be processed, and it is used to insert and position the square steel 5. The elastic opening 3 is opened on the side of the cylindrical base 1, and extends axially through the entire cylindrical base 1, giving the cylindrical base 1 a certain elastic deformation capacity. When this fixture is needed to clamp the square steel 5 for lathe processing, the square steel 5 is first inserted into the square through hole 2 of the cylindrical base 1. Since the size of the square through hole 2 is adapted to the square steel 5, the square steel 5 can be initially positioned. Then, the cylindrical base 1 with the square steel 5 is installed on the three-jaw chuck. Utilizing the characteristic of the three-jaw chuck to automatically align a circular workpiece, the entire fixture (including the square steel 5) is quickly positioned on the lathe. The operator tightens the locking bolts 4 on both sides of the elastic opening 3, making the width of the elastic opening 3 smaller. The cylindrical base 1 undergoes elastic deformation, thereby tightly holding the square steel 5 and achieving a firm clamping of the square steel 5. After processing, loosening the locking bolt 4 allows the elastic opening 3 to return to a certain width, and the cylindrical base 1 to elastically recover, making it easy to remove the square steel 5. In this application, by setting the cylindrical base 1 to automatically align with the three-jaw chuck, the cumbersome alignment process used with a four-jaw chuck is avoided, greatly shortening the clamping time of the square steel 5 and improving the overall processing progress. The fixture mainly consists of a cylindrical base 1, a square through hole 2, an elastic opening 3, and a locking bolt 4. It has a simple structure, and the operator only needs to insert and install the square steel 5 onto the three-jaw chuck and tighten or loosen the locking bolt 4 to complete the clamping and disassembly operations, making it convenient to operate.

[0027] like Figure 1As shown, a replaceable polyurethane friction pad is pasted on the inner wall of the square through hole 2. The polyurethane friction pad has a thickness of 1-2mm and an interlocking grid pattern is pressed on its surface.

[0028] When the elastic opening 3 contracts, the cylindrical base 1 applies a clamping force to the square steel 5. The interlocking grid pattern pressed on the surface of the polyurethane friction pad will engage with the surface of the square steel 5, increasing the friction between the pad and the square steel 5. This allows the square steel 5 to be firmly fixed in the square through hole 2 during processing, effectively preventing the square steel 5 from sliding or shifting, thus ensuring the stability and accuracy of the processing.

[0029] like Figure 4 As shown, wedge-shaped guide blocks 11 are provided on both sides of the cylindrical base 1. The wedge-shaped guide blocks 11 are located at the edge of the square through hole 2, and there are at least three wedge-shaped guide blocks 11.

[0030] Specifically, multiple wedge-shaped guide blocks 11 are distributed on the side of the square through hole 2, forming a large guiding area. The wedge-shaped guide blocks 11 can guide the square steel 5 into the square through hole 2. Even if there is a certain angular deviation or positional offset when the square steel 5 is inserted, the multiple wedge-shaped guide blocks 11 can work together to guide the square steel 5 to the correct insertion path step by step, reducing the accuracy requirements of the operator for the initial positioning of the square steel 5 and improving the operating efficiency.

[0031] like Figure 3 As shown, the cylindrical base 1 has positioning bosses 12 at both ends, and the height of the positioning bosses 12 is 5mm-10mm.

[0032] Specifically, positioning bosses 12 are provided at both ends of the cylindrical base 1, which can play a better positioning role when clamped by the three-jaw chuck, making it easier for operators to quickly and accurately install the device on the three-jaw chuck and improve clamping efficiency.

[0033] like Figure 1 As shown, the outer contour surface of the cylindrical substrate 1 is provided with an anti-oxidation coating.

[0034] Specifically, an anti-oxidation coating is applied to the outer contour surface of the cylindrical substrate 1, which can effectively prevent the cylindrical substrate 1 from rusting due to oxidation reaction with oxygen in the air, thus protecting the surface quality and mechanical properties of the cylindrical substrate 1.

[0035] like Figure 1 As shown, there are two locking bolts 4, which are respectively installed on the positioning boss 12.

[0036] Specifically, the positioning bosses 12 are located at both ends of the cylindrical base 1. When the operator tightens or loosens the locking bolts 4, the tool will not be interfered with by the surrounding parts, allowing for more free and flexible operation. The positioning bosses 12 themselves have a certain structural strength and stability. By placing the locking bolts 4 on them, the clamping force can be transmitted more evenly to both sides of the elastic opening 3 when the bolts are tightened, thereby more effectively gripping the square steel 5 and improving the reliability and stability of the clamping.

[0037] like Figure 1 As shown, the locking hole of the locking bolt 4 is a countersunk hole, and an anti-loosening nut is provided in the countersunk hole.

[0038] Specifically, the locking hole of the locking bolt 4 is a countersunk hole, and an anti-loosening nut is installed in the countersunk hole to cooperate with the locking bolt 4. The head of the locking bolt 4 is lower than the surface of the cylindrical base 1 to avoid interference with the chuck during the clamping process of the three-jaw chuck. The anti-loosening nut can effectively prevent the locking bolt 4 from loosening due to vibration or other reasons during processing, ensuring that the square steel is always firmly clamped in the cylindrical base 1, thereby improving the safety and reliability of the device.

[0039] The beneficial effects of this application compared with the prior art are as follows:

[0040] This application discloses a quick clamping fixture for square steel, comprising: a cylindrical base 1, with a through square hole 2 at the center of the cylindrical base 1; a through elastic opening 3 on the side of the cylindrical base 1 along the axial direction; and adjustable locking bolts 4 on both sides of the elastic opening 3. The square through hole 2 is located at the center of the cylindrical base 1 and is through-hole. Its size is adapted to the size of the square steel 5 to be processed. It is used to insert and position the square steel 5. The elastic opening 3 is opened on the side of the cylindrical base 1 and penetrates the entire cylindrical base 1 along the axis, so that the cylindrical base 1 has a certain elastic deformation capacity. By setting the cylindrical base 1 to automatically align with the three-jaw chuck, the cumbersome alignment process when using a four-jaw chuck is avoided, which greatly shortens the clamping time of the square steel 5 and improves the overall processing progress. The fixture is mainly composed of the cylindrical base 1, the square through hole 2, the elastic opening 3 and the locking bolt 4. The structure is simple. The operator only needs to insert the square steel 5 and install it on the three-jaw chuck and tighten or loosen the locking bolt 4 to complete the clamping and disassembly operations. The operation is convenient.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A quick-clamping fixture for square steel, comprising: The invention includes a cylindrical base (1), characterized in that the cylindrical base (1) has a through square hole (2) at its center; the cylindrical base (1) has an axial through elastic opening (3) on its side; and the elastic opening (3) has adjustable locking bolts (4) on both sides.

2. The quick clamping fixture for square steel according to claim 1, characterized in that, The inner wall of the square through hole (2) is pasted with a replaceable polyurethane friction pad, the polyurethane friction pad having a thickness of 1-2mm and an interlocking grid pattern pressed on its surface.

3. The quick clamping fixture for square steel according to claim 1, characterized in that, The cylindrical base (1) is provided with wedge-shaped guide blocks (11) on both sides. The wedge-shaped guide blocks (11) are located at the edge of the square through hole (2). There are at least three wedge-shaped guide blocks (11).

4. The quick clamping fixture for square steel according to claim 1, characterized in that, The cylindrical base (1) has positioning bosses (12) at both ends, and the height of the positioning bosses (12) is 5mm-10mm.

5. The quick clamping fixture for square steel according to claim 1, characterized in that, The outer contour surface of the cylindrical substrate (1) is provided with an anti-oxidation coating.

6. The quick clamping fixture for square steel according to claim 4, characterized in that, There are two locking bolts (4), which are respectively set on the positioning boss (12).

7. The quick clamping fixture for square steel according to claim 1, characterized in that, The locking hole of the locking bolt (4) is a countersunk hole, and an anti-loosening nut is provided in the countersunk hole.

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