Broach equipment for machining inner surface of pipe fitting

Abstract

The utility model relates to the field of broaching tool equipment, and discloses broaching tool equipment for machining the inner surface of a pipe fitting, the broaching tool equipment comprises a machining table, inner supporting plates are installed on the two inner sides of the upper portion of the machining table correspondingly, cross rods are fixedly connected between the corners of the same sides of the two inner supporting plates correspondingly, and a supporting frame is installed on one side of the outer portion of the cross rod located on the upper portion; a driving motor is installed at the right-angle end of the upper portion of the supporting frame, a bidirectional lead screw is installed at the output end of the driving motor, sleeve blocks are spirally arranged at the upper end and the lower end of the exterior of the bidirectional lead screw in a transmission mode, and the driving motor drives the bidirectional lead screw to rotate and drives the sleeve blocks at the upper end and the lower end to move oppositely. And the fixed block and the supporting blocks are driven to move synchronously, so that the two supporting blocks can be tightly attached to the exterior of a pipeline cutting area, the supporting performance on the exterior of the pipeline is improved, excessive deformation of the inner surface of the pipeline during machining is avoided as much as possible, and the yield of the machined pipeline is increased.

Description

Technical Field

[0001] This application relates to the technical field of broaching equipment, and in particular to a broaching equipment for machining the inner surface of pipe fittings. Background Technology

[0002] Broaching equipment uses broaches to cut workpieces, capable of machining through holes, planes, and shaped surfaces. During broaching, multiple teeth mesh simultaneously, resulting in high cutting efficiency and suitability for mass production. Depending on the surface being machined, broaching is divided into internal broaching and external broaching. Internal broaching is used to machine through holes and internal grooves of various cross-sectional shapes, while external broaching is used to machine non-closed surfaces, such as planes and shaped surfaces.

[0003] For pipe fittings with thin walls, when cutting their inner surface, the hard contact between the inner wall of the fitting and the broach can easily cause excessive deformation in the cutting zone of the fitting, affecting the quality of the fitting after processing.

[0004] Therefore, those skilled in the art have provided a broaching device for machining the inner surface of pipe fittings to solve the problems mentioned in the background art. Utility Model Content

[0005] To address the problems mentioned in the background art, this application provides a broaching device for machining the inner surface of pipe fittings.

[0006] The broaching device for machining the inner surface of pipe fittings provided in this application adopts the following technical solution:

[0007] A broaching device for machining the inner surface of pipe fittings includes a machining table. Inner support plates are installed on both inner sides of the upper part of the machining table. A crossbar is fixedly connected between the corners of the two inner support plates on the same side. A support frame is installed on the outer side of the upper crossbar. A drive motor is installed at the right-angle end of the support frame. A bidirectional lead screw is installed at the output end of the drive motor. Sleeves are helically driven at both the upper and lower ends of the bidirectional lead screw. Fixing blocks are fixedly connected to the same side of the two sleeves. Support blocks are fixedly connected to opposite sides of the two fixing blocks. An adjustment mechanism is provided between the bidirectional lead screw and the two crossbars.

[0008] Preferably, the adjustment mechanism includes two bearing sleeves fixedly fitted at both ends of the bidirectional lead screw. A slider is fixedly connected to the outer ring of each of the two bearing sleeves, and the slider is fitted onto the outside of the crossbar. The upper crossbar is fixed to the bottom of the support frame. A C-shaped block is fixedly connected to one side of the slider. A fastening nut is threaded between the C-shaped block and the slider on the same side, and the bottom of the fastening nut abuts against the outer surface of the slider.

[0009] Preferably, the bottom of the bidirectional lead screw is not in contact with the upper surface of the machining table.

[0010] Preferably, a clamping mechanism is installed on one side of the inner support plate, and a puller mechanism is installed on the other side of the inner support plate.

[0011] Preferably, an outer support plate is fixedly connected to both sides above the processing table, and a guide rod is fixedly connected between the bottom of the two outer support plates. The guide rod passes through the inner support plates on both sides. A hydraulic rod is installed on the top of one outer support plate, and the telescopic end of the hydraulic rod is fixed to the outer surface of the inner support plate on the same side.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] 1. The drive motor drives the bidirectional lead screw to rotate, which in turn drives the upper and lower end sleeve blocks to move towards each other. This causes the fixed block and the support block to move synchronously, so that the two support blocks can fit tightly against the outside of the pipe cutting area, increasing the support for the outside of the pipe and minimizing excessive deformation of the inner surface of the pipe during processing, thereby increasing the yield of the processed pipe.

[0014] 2. When the slider moves outside the crossbar, it can drive the bearing sleeve and the double-acting screw to move synchronously, changing the clamping position of the support block, better adapting to the changes in the cutting area of ​​different pipes, and improving the adaptability of the equipment during use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main body of the broaching device of this application;

[0016] Figure 2 This is a structural schematic diagram showing the details of the bidirectional lead screw connection component in this application;

[0017] Figure 3 This application is Figure 2 Enlarged structural diagram of the top section.

[0018] Explanation of reference numerals in the attached drawings: 1. Machining table; 2. Guide rod; 3. Outer support plate; 4. Inner support plate; 5. Chuck; 6. Drive motor; 7. Broach; 8. Support frame; 9. Hydraulic rod; 10. Slider; 11. Bearing sleeve; 12. Fixing block; 13. Support block; 14. Sleeve block; 15. Crossbar; 16. Double-acting lead screw; 17. Fastening nut; 18. C-shaped block. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] refer to Figure 1 and Figure 2 as well as Figure 3 As shown, this application discloses a broaching device for machining the inner surface of pipe fittings, including a machining table 1. Inner support plates 4 are installed on both sides of the upper part of the machining table 1. A crossbar 15 is fixedly connected between the corners of the two inner support plates 4 on the same side. A support frame 8 is installed on the outer side of the upper crossbar 15. A drive motor 6 is installed at the right-angle end of the support frame 8. A bidirectional lead screw 16 is installed at the output end of the drive motor 6. Sleeve blocks 14 are screw-driven at both the upper and lower ends of the bidirectional lead screw 16. Fixing blocks 12 are fixedly connected to the same side of the two sleeve blocks 14.

[0021] The output of the drive motor 6 drives the bidirectional lead screw 16 to rotate. The rotating bidirectional lead screw 16 then drives the upper and lower sleeve blocks 14 to move towards each other. The moving sleeve blocks 14 then drive the fixed block 12 and the support block 13 to move synchronously, so that the two support blocks 13 can fit tightly against the outside of the pipe cutting area, increasing the support for the outside of the pipe and minimizing the excessive deformation of the inner surface of the pipe during processing.

[0022] refer to Figure 1 and Figure 2 as well as Figure 3 As shown, the adjustment mechanism includes two bearing sleeves 11 fixedly sleeved at both ends of the bidirectional lead screw 16. A slider 10 is fixedly connected to the outer ring of each bearing sleeve 11, and the slider 10 is sleeved outside the crossbar 15. The upper crossbar 15 is fixed to the bottom of the support frame 8. The inner ring of the bearing sleeve 11 is fixed to the outside of the bidirectional lead screw 16, which does not affect the normal rotation of the bidirectional lead screw 16. Simultaneously, when the slider 10 moves outside the crossbar 15, it can drive the bearing sleeve 11 and the bidirectional lead screw 16 to move synchronously, changing the clamping position of the support block 13, better adapting to changes in the cutting area of ​​different pipes, and improving the adaptability of the equipment during use.

[0023] A C-shaped block 18 is fixedly connected to one side of the slider 10. A fastening nut 17 is threaded between the C-shaped block 18 and the slider 10 on the same side, and the bottom of the fastening nut 17 abuts against the outer surface of the slider 10.

[0024] This facilitates limiting the movement of the slider 10 after it has been moved, ensuring the stability of the support block 13 after its position has been adjusted.

[0025] refer to Figure 1 As shown, the bottom of the bidirectional lead screw 16 is not in contact with the upper surface of the machining table 1 to avoid affecting the normal rotation and position adjustment of the bidirectional lead screw 16.

[0026] refer to Figure 1 As shown, a clamping mechanism 5 is installed on the side of the inner support plate 4 on one side, and a puller mechanism 7 is installed on the side of the inner support plate 4 on the other side. Outer support plates 3 are fixedly connected to both sides above the processing table 1. A guide rod 2 is fixedly connected between the bottom of the two outer support plates 3, and the guide rod 2 passes through the inner support plates 4 on both sides. A hydraulic rod 9 is installed on the top of the outer support plate 3 on one side, and the telescopic end of the hydraulic rod 9 is fixed to the outer surface of the inner support plate 4 on the same side.

[0027] The inner support plate 4, which is on the same side as the clamping mechanism 5, is fixedly installed on the upper surface of the processing table 1. The inner support plate 4, which is on the same side as the broaching mechanism 7, is attached to the upper surface of the processing table 1. Thus, during processing, the pipe can be clamped and limited by the clamping mechanism on the chuck. Then, by activating the hydraulic rod 9, the broaching mechanism 7 is driven to move along the guide path of the guide rod 2, so that the end of the broaching mechanism 7 can be embedded inside the pipe to realize the processing of the inner surface of the pipe.

[0028] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0029] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0030] The implementation principle of a broaching device for machining the inner surface of pipe fittings according to an embodiment of this application is as follows:

[0031] During processing, the clamping mechanism 5 clamps and limits the pipe to be processed. Then, the drive motor 6 is started. The output end of the drive motor 6 drives the bidirectional lead screw 16 to rotate. The rotating bidirectional lead screw 16 then drives the upper and lower sleeve blocks 14 to move towards each other. The moving sleeve blocks 14 then drive the fixed block 12 and the support block 13 to move synchronously, so that the two support blocks 13 can fit tightly against the outside of the pipe cutting area, increasing the support for the outside of the pipe, avoiding excessive deformation of the inner surface of the pipe during processing, and increasing the yield of the processed pipe.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A broaching device for machining the inner surface of pipe fittings, comprising a machining table (1), characterized in that, The processing table (1) is equipped with inner support plates (4) on both sides above it. A crossbar (15) is fixedly connected between the corners of the two inner support plates (4) on the same side. A support frame (8) is installed on the outside of the upper crossbar (15). A drive motor (6) is installed at the right-angle end of the support frame (8). A bidirectional lead screw (16) is installed at the output end of the drive motor (6). Both the upper and lower ends of the bidirectional lead screw (16) are helically driven with sleeve blocks (14). Fixing blocks (12) are fixedly connected to the same side of the two sleeve blocks (14). Support blocks (13) are fixedly connected to the opposite side of the two fixing blocks (12). An adjustment mechanism is provided between the bidirectional lead screw (16) and the two crossbars (15).

2. The broaching device for machining the inner surface of pipe fittings according to claim 1, characterized in that: The adjustment mechanism includes two bearing sleeves (11) fixedly sleeved at both ends of the bidirectional lead screw (16). The outer rings of the two bearing sleeves (11) are fixedly connected to sliders (10), and the sliders (10) are sleeved on the outside of the crossbar (15). The upper crossbar (15) is fixed to the bottom of the support frame (8). A C-shaped block (18) is fixedly connected to one side of the slider (10). A fastening nut (17) is threaded between the C-shaped block (18) and the slider (10) on the same side, and the bottom of the fastening nut (17) abuts against the outer surface of the slider (10).

3. The broaching device for machining the inner surface of pipe fittings according to claim 1, characterized in that: The bottom of the bidirectional lead screw (16) is not in contact with the upper surface of the processing table (1).

4. A broaching device for machining the inner surface of pipe fittings according to claim 1, characterized in that: A clamping mechanism (5) is installed on the side of one side of the inner support plate (4), and a puller mechanism (7) is installed on the side of the other side of the inner support plate (4).

5. A broaching device for machining the inner surface of pipe fittings according to claim 1, characterized in that: The processing table (1) is fixedly connected to two outer support plates (3) on the upper outer sides. A guide rod (2) is fixedly connected between the bottom of the two outer support plates (3). The guide rod (2) passes through the inner support plates (4) on both sides. A hydraulic rod (9) is installed on the top of one outer support plate (3). The extension end of the hydraulic rod (9) is fixed to the outer surface of the inner support plate (4) on the same side.

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