Clamp device for machining right-angle tee joint

Abstract

The utility model provides a clamp device for machining a right-angle tee joint, and belongs to the technical field of clamps. Comprising a base plate and a circular outer sleeve, a fixed connecting shaft is fixedly arranged on the lower portion of the base plate, the outer surface of the base plate is tightly sleeved with the circular outer sleeve, and the base plate and the circular outer sleeve are coaxial. Two opposite transverse sliding cavities and two opposite longitudinal sliding cavities are formed among the four guide blocks, clamping sliding blocks are arranged in the two transverse sliding cavities in a matched mode, the rear portions of the clamping sliding blocks are movably connected with adjusting screw rods, and the adjusting screw rods are transversely and horizontally arranged and screwed with the circular ring outer sleeve through threads. And a positioning jacking screw rod is horizontally and longitudinally arranged in one longitudinal sliding cavity and is screwed with the circular ring outer sleeve through threads. The positions of one clamping sliding block and the positioning and jacking screw rod are well adjusted, and when a part is disassembled and assembled, the part can be quickly disassembled and assembled on a machine tool only by loosening the other clamping sliding block, so that the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamps, and in particular relates to a clamp device for machining right-angle tees. Background Art

[0002] Right-angle tee joints are suitable for pipe connections in various industries, so the production volume is large. In order to meet the supply requirements, it is necessary to improve the processing efficiency. In the processing process, the right-angle tee joint is generally completed through machining processes such as machining shape, drilling, and tapping. In the machining process, it is now common to clamp the right-angle tee semi-finished parts directly on the three-jaw chuck of the lathe before processing. In this operation mode, when each part is clamped and disassembled, the three-jaw chuck needs to be loosened as a whole before replacement. In addition, the right-angle tee joint parts are small, and each clamping takes a considerable amount of time, which greatly reduces the work efficiency. Therefore, it is necessary to propose improvements. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a clamp device for machining a right-angle tee. The utility model aims to realize the rapid disassembly and assembly of parts on a machine tool, improve work efficiency, and has a simple structure and convenient operation.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A clamp device for machining right-angle tees comprises a chassis and a circular ring sleeve, a fixed connecting shaft is fixedly arranged at the lower part of the chassis, the outer surface of the chassis is tightly sleeved inside the circular ring sleeve and the two are coaxial, four guide blocks are evenly distributed and fixedly arranged on the upper circumference of the chassis, the outer arc surface of the guide block is tightly attached to the inner surface of the circular ring sleeve and fixedly connected together, two opposite transverse sliding cavities and two opposite longitudinal sliding cavities are formed between the four guide blocks, the two transverse sliding cavities are each adapted to be equipped with a clamping slider, the two clamping sliders are arranged oppositely in the two transverse sliding cavities, the rear part of the clamping slider is movably connected with an adjusting screw, the adjusting screw is arranged horizontally and transversely and is screwed with the circular ring sleeve by a thread; a positioning and tightening screw is horizontally and longitudinally arranged in one of the longitudinal sliding cavities, and the rear end of the positioning and tightening screw is screwed with the circular ring sleeve by a thread.

[0006] To further define the above scheme, the outer circular surface of the chassis is a step surface structure with a small upper diameter and a large lower diameter, the small diameter portion of the upper step surface structure is tightly matched with the inner surface of the circular ring sleeve, the lower edge of the circular ring sleeve is stuck at the step corner of the step surface structure, the outer surfaces of the four guide blocks are arc surfaces and are used to fit tightly with the inner circular surface of the circular ring sleeve, the other side surfaces of the four guide blocks are planes and are used to enclose a horizontal sliding cavity and a longitudinal sliding cavity, and the four guide blocks are fixedly connected to the circular ring sleeve by fixing screws.

[0007] As a further limitation of the above solution, the chassis, the fixed connecting shaft and the four guide blocks are an integrally processed structure.

[0008] A further limitation of the above scheme is that the front surface of the clamping slider used for clamping and contacting the workpiece is a serrated surface, the rear part of the clamping slider is provided with a T-slot, a T-block is adapted in the T-slot, the corresponding end of the adjusting screw is movably connected to the T-block, and the rear end of the adjusting screw extends out of the circular sleeve and is connected to an adjusting end.

[0009] As a further limitation of the above scheme, the annular sleeve is provided with a threaded hole I which is screwed with the adjusting screw, and the annular sleeve is provided with a threaded hole II which is screwed with the positioning and tightening screw.

[0010] A further limitation of the above scheme also includes a gasket, which is used to pad the bottom of the horizontal sliding cavity and the vertical sliding cavity to support the workpiece.

[0011] The advantages of this utility model compared with the prior art:

[0012] This technical solution aims to solve the problem of low clamping efficiency of workpieces such as right-angle tee joints during machining, and designs a clamping device that can be fixed on the three-jaw chuck of a machine tool. For batch production of a certain type of part, the position of a clamping slide block and a positioning tightening screw is adjusted according to the structure of a part and then no longer moved. When clamping and disassembling other parts, only the other clamping slide block needs to be loosened. This enables rapid disassembly and assembly of parts on the machine tool, improves work efficiency, has a simple structure, and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0015] Figure 3 It is a schematic diagram of the top structure of the utility model. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0018] See also Figure 1-3 , describe the embodiments of the present utility model in detail.

[0019] Example: Fixture device for machining right angle tee, see Figure 1 As shown, it includes a chassis 1 and a circular ring sleeve 5, a fixed connecting shaft 2 is fixedly provided at the lower part of the chassis 1, the outer surface of the chassis 1 is tightly sleeved inside the circular ring sleeve 5 and the two are coaxial, four guide blocks 3 are evenly distributed and fixedly provided on the upper circumference of the chassis 1, the outer arc surface of the guide block 3 is tightly attached to the inner surface of the circular ring sleeve 5 and fixedly connected together, two opposite transverse sliding cavities 6 and two opposite longitudinal sliding cavities 7 are formed between the four guide blocks 3, the two transverse sliding cavities 6 are each adapted with a clamping slider 8, the two clamping sliders 8 are arranged opposite to each other in the two transverse sliding cavities 6, the rear part of the clamping slider 8 is movably connected with an adjusting screw 11, the adjusting screw 11 is arranged horizontally and transversely and is screwed with the circular ring sleeve 5 by a thread; a positioning and tightening screw 14 is horizontally and longitudinally provided in one of the longitudinal sliding cavities 7, the rear end of the positioning and tightening screw 14 is screwed with the circular ring sleeve 5 by a thread.

[0020] In this embodiment, when batch processing is performed on a part, the fixed connecting shaft 2 of the fixture is fixedly connected to the three-jaw chuck of the machine tool, and then according to the structure of the part, the position of a clamping slide block 8 and a positioning tightening screw 14 is adjusted and fixed. When clamping and disassembling the parts, only the other clamping slide block 8 needs to be loosened, which can realize the rapid disassembly and assembly of the parts on the machine tool, improve work efficiency, have a simple structure, and are easy to operate.

[0021] In a specific embodiment, see Figure 2 As shown, the outer circular surface of the chassis 1 is a step surface structure 4 with a small upper diameter and a large lower diameter. The small diameter portion of the upper part of the step surface structure 4 is tightly matched with the inner surface of the circular ring sleeve 5. The lower edge of the circular ring sleeve 5 is stuck at the step corner of the step surface structure 4. The outer surfaces of the four guide blocks 3 are arc surfaces and are used to fit tightly with the inner circular surface of the circular ring sleeve 5. The other side surfaces of the four guide blocks 3 are planes and are used to enclose a horizontal sliding cavity 6 and a longitudinal sliding cavity 7. The four guide blocks 3 are fixedly connected to the circular ring sleeve 5 by fixing screws 16.

[0022] The above structure facilitates the installation and positioning of the chassis and the annular outer sleeve, and ensures the assembly accuracy. No components are installed in one of the longitudinal sliding cavities, which is mainly for the entry and exit of the workpiece during clamping.

[0023] In a specific embodiment, see Figure 1 As shown, the chassis 1, the fixed connecting shaft 2 and the four guide blocks 3 are an integrally processed structure.

[0024] In a specific embodiment, see Figure 1 As shown, the front surface of the clamping slider 8 for clamping and contacting the workpiece is a serrated surface, and the rear portion of the clamping slider 8 is provided with a T-slot 9, in which a T-block 10 is adapted, and the corresponding end of the adjusting screw 11 is movably connected to the T-block 10, and the rear end of the adjusting screw 11 extends out of the annular sleeve 5 and is connected to an adjusting end 12.

[0025] Through the above implementation, the serrated surface is adopted on the slider, which can increase the friction with the workpiece and ensure the stability and reliability during the workpiece processing.

[0026] In a specific embodiment, see Figure 1 As shown, the annular sleeve 5 is provided with a threaded hole Ⅰ13 screwed with the adjusting screw 11 , and the annular sleeve 5 is provided with a threaded hole Ⅱ15 screwed with the positioning and tightening screw 14 .

[0027] In a specific embodiment, see Figure 1 As shown, it also includes a gasket 17, which is used to support the workpiece at the bottom of the horizontal sliding cavity 6 and the vertical sliding cavity 7. The thickness and number of the gasket can be determined according to the workpiece clamping needs.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fixture device for machining right-angle tees, characterized in that: The invention comprises a chassis (1) and a circular sleeve (5), wherein a fixed connecting shaft (2) is fixedly provided at the lower part of the chassis (1), the outer surface of the chassis (1) is tightly sleeved inside the circular sleeve (5) and the two are coaxial, and four guide blocks (3) are evenly distributed and fixedly provided at the upper part of the chassis (1), the outer arc surface of the guide block (3) is tightly attached to the inner surface of the circular sleeve (5) and fixedly connected together, and two opposite horizontal sliding cavities (6) and two opposite longitudinal sliding cavities (7) are formed between the four guide blocks (3), The two transverse sliding cavities (6) are each equipped with a clamping slider (8), and the two clamping sliders (8) are arranged opposite to each other in the two transverse sliding cavities (6). The rear of the clamping slider (8) is movably connected with an adjusting screw (11), and the adjusting screw (11) is arranged horizontally and is screwed with the annular sleeve (5) through a thread. A positioning and tightening screw (14) is arranged horizontally and longitudinally in one of the longitudinal sliding cavities (7), and the rear end of the positioning and tightening screw (14) is screwed with the annular sleeve (5) through a thread.

2. The right angle tee machining fixture device according to claim 1, characterized in that: The outer circular surface of the chassis (1) is a step surface structure (4) with a small upper diameter and a large lower diameter. The small diameter portion of the upper part of the step surface structure (4) is tightly matched with the inner surface of the circular sleeve (5). The lower edge of the circular sleeve (5) is stuck at the step angle of the step surface structure (4). The outer surfaces of the four guide blocks (3) are arc surfaces and are used to fit tightly with the inner circular surface of the circular sleeve (5). The other side surfaces of the four guide blocks (3) are planes and are used to enclose a horizontal sliding cavity (6) and a longitudinal sliding cavity (7). The four guide blocks (3) are fixedly connected to the circular sleeve (5) by fixing screws (16).

3. The right angle tee machining fixture device according to claim 1, characterized in that: The chassis (1), the fixed connecting shaft (2) and the four guide blocks (3) are an integrally processed structure.

4. The right angle tee machining fixture device according to claim 1, characterized in that: The front surface of the clamping slider (8) for clamping and contacting the workpiece is a serrated surface, and the rear part of the clamping slider (8) is provided with a T-shaped slot (9), and a T-shaped block (10) is adapted in the T-shaped slot (9). The corresponding end of the adjusting screw (11) is movably connected to the T-shaped block (10), and the rear end of the adjusting screw (11) extends out of the annular sleeve (5) and is connected to an adjusting end (12).

5. The right angle tee machining fixture device according to claim 1, characterized in that: The annular sleeve (5) is provided with a threaded hole I (13) screwed together with the adjusting screw (11), and the annular sleeve (5) is provided with a threaded hole II (15) screwed together with the positioning and tightening screw (14).

6. The right angle tee machining fixture device according to claim 1, characterized in that: It also includes a gasket (17), which is used to pad the bottom of the transverse sliding cavity (6) and the longitudinal sliding cavity (7) to support the workpiece.

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