Device for extruding taper of hole

Abstract

The utility model belongs to the technical field of hole taper machining devices, and discloses a hole taper extrusion device which comprises a machining table, a support is fixedly installed on the rear side of the top of the machining table, and a first pneumatic cylinder is fixedly installed on the top of the support. The bottom end of the first pneumatic cylinder penetrates through the support, extends to the position below the support and is movably connected with the inner wall of the support in a sleeving mode. Through the arrangement of the driving motor, the double-threaded rod, the hinge rod and the movable wheel, an operator places a part needing to be machined on the top of the machining table, then three push plates are inserted into a round hole of the part by starting a first pneumatic cylinder, and then the three push plates are driven to move by starting the driving motor. And the double-threaded rod drives the two moving blocks to move in opposite directions, so that the hinged rod outwards pushes the push plate, the movable wheel is in contact with the inner wall of the circular hole, the position of the part can be finely adjusted, and the axis of the circular hole is coaxial with the axis of the double-threaded rod.

Description

Technical Field

[0001] This utility model belongs to the technical field of hole taper processing device, specifically a device for extruding hole taper. Background Technology

[0002] The taper of a hole is an important parameter describing the shape characteristics of a hole. It reflects the relationship between the diameter of the hole bottom and the diameter of the hole opening. Specifically, when the diameter of the hole bottom is smaller than the diameter of the hole opening, the so-called hole taper is formed.

[0003] When machining taper holes, an extrusion device is required. By inserting a tapered extrusion head into the original round hole, a tapered hole is extruded. Although the existing extrusion taper mechanism can process parts, it is impossible to accurately align the round hole and the tapered head on the same axis because the shapes of the parts are different. This results in positional deviations during extrusion, affecting the production quality of the parts. If the deviation is serious, the parts will be scrapped. Therefore, it is necessary to improve it. Utility Model Content

[0004] The purpose of this invention is to address the above problems by providing a device for tapering extrusion holes, which has the advantage of improving processing accuracy.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for extruding a tapered hole, comprising a processing table, a bracket fixedly installed on the rear side of the top of the processing table, a first pneumatic cylinder fixedly installed on the top of the bracket, the bottom end of the first pneumatic cylinder penetrating the bracket and extending to the bottom of the bracket and movably sleeved with the inner wall of the bracket, a cylinder fixedly connected to the bottom end of the first pneumatic cylinder, a spring fixedly connected to the top of the inner surface of the cylinder, a circular block fixedly connected to the bottom end of the spring, and the outer surface of the circular block movably sleeved with the inner surface of the cylinder. Next, a drive motor is fixedly sleeved inside the circular block, and a double-threaded rod is fixedly connected to the other end of the output shaft of the drive motor. A movable block is threadedly sleeved on the top and bottom of the outer surface of the double-threaded rod. A hinge rod is hinged inside the movable block, and a push plate is hinged to the other end of the hinge rod. A round shaft is fixedly sleeved inside the push plate, and a movable wheel is movably sleeved on the outer surface of the round shaft. A limit groove is opened at the bottom of the circular block, and a limit block is movably installed inside the limit groove. The bottom of the limit block is fixedly connected to the top of the push plate.

[0006] As a preferred embodiment of this utility model, the side of the cylinder is provided with a sliding groove, the side of the circular block is fixedly installed with a slider located inside the sliding groove, the outer surface of the slider is movably connected to the inner surface of the sliding groove, and the bottom of the double threaded rod is fixedly installed with a base plate.

[0007] As a preferred embodiment of this utility model, the top of the processing table is provided with a through hole, and a second pneumatic cylinder is fixedly installed at the bottom of the inner surface of the processing table, with a conical head fixedly installed at the top of the second pneumatic cylinder.

[0008] As a preferred embodiment of this utility model, a crossbar is fixedly installed inside the top of both the front and back sides of the processing table, and movable frames are movably sleeved on both the left and right sides of the outer surface of the crossbar.

[0009] As a preferred embodiment of this utility model, a pressure plate is movably connected to the top of the inner surface of the movable frame, and side plates are fixedly installed on both the left and right sides of the pressure plate. The inner surface of the side plates is movably connected to the outer surface of the movable frame, and a slot is provided inside the side plates.

[0010] As a preferred embodiment of this utility model, a fixing block is fixedly connected to the front end of the top of the movable frame, a circular sleeve is movably fitted inside the fixing block, and a lead screw is fixedly fitted inside the circular sleeve.

[0011] As a preferred embodiment of this utility model, a handle is fixedly connected to the front end of the lead screw, a movable plate is threaded onto the outer surface of the lead screw, the bottom of the movable plate is movably connected to the top of the movable frame, and extrusion blocks located inside the slot are fixedly installed on both the left and right sides of the movable plate, with the outer surface of the extrusion blocks movably connected to the inner surface of the slot.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, by setting up a drive motor, a double threaded rod, a hinged rod, and a movable wheel, allows the operator to place the part to be processed on the top of the processing table. Then, by activating the first pneumatic cylinder, three push plates are inserted into the round hole of the part. Then, by activating the drive motor, the double threaded rod drives two moving blocks to move in opposite directions, thereby causing the hinged rod to push the push plates outward, so that the movable wheel contacts the inner wall of the round hole. This allows for fine adjustment of the part's position, ensuring that the axis of the round hole is coaxial with the axis of the double threaded rod, thus improving the accuracy of the extrusion hole taper.

[0014] 2. This utility model, by setting up a pressure plate, side plate, groove, and extrusion block, allows the workpiece to be placed on top of the processing table and adjusted. By rotating the handle, the lead screw drives the moving plate to move backward, thereby causing the extrusion block to press and push the inner surface of the groove, which in turn causes the side plate to descend. The side plate then causes the pressure plate to descend, thus enabling the pressure plate to press and fix the workpiece, preventing the conical head from causing the workpiece to rise when it presses upward, thereby ensuring stable processing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the front of the present invention;

[0017] Figure 3 This is a cross-sectional view of the side of the movable frame of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the cylinder of this utility model;

[0019] Figure 5 This is a bottom view of the cylindrical structure of this utility model;

[0020] Figure 6 This is a cross-sectional view of the cylindrical structure of this utility model;

[0021] Figure 7 for Figure 6 A magnified schematic diagram of the structure at point A in the middle.

[0022] In the diagram: 1. Processing table; 2. Support; 3. First pneumatic cylinder; 4. Cylinder; 5. Spring; 6. Circular block; 7. Drive motor; 8. Double threaded rod; 9. Moving block; 10. Hinge rod; 11. Push plate; 12. Circular shaft; 13. Movable wheel; 14. Limiting groove; 15. Limiting block; 16. Slide groove; 17. Sliding block; 18. Base plate; 19. Through hole; 20. Second pneumatic cylinder; 21. Conical head; 22. Crossbar; 23. Movable frame; 24. Pressure plate; 25. Side plate; 26. Groove; 27. Fixing block; 28. Circular sleeve; 29. ​​Lead screw; 30. Handle; 31. Moving plate; 32. Extrusion block. Detailed Implementation

[0023] 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.

[0024] like Figures 1 to 7As shown, this utility model provides a device for extruding a tapered hole, including a processing table 1. A bracket 2 is fixedly installed on the rear side of the top of the processing table 1. A first pneumatic cylinder 3 is fixedly installed on the top of the bracket 2. The bottom end of the first pneumatic cylinder 3 passes through the bracket 2 and extends to the bottom of the bracket 2, and is movably sleeved with the inner wall of the bracket 2. A cylinder 4 is fixedly connected to the bottom end of the first pneumatic cylinder 3. A spring 5 is fixedly connected to the top of the inner surface of the cylinder 4. A circular block 6 is fixedly connected to the bottom end of the spring 5. The outer surface of the circular block 6 is movably sleeved with the inner surface of the cylinder 4. The interior of the circular block 6 is fixed. A drive motor 7 is sleeved on the outside of the drive motor 7. A double threaded rod 8 is fixedly connected to the other end of the output shaft of the drive motor 7. A movable block 9 is threadedly sleeved on the top and bottom of the outer surface of the double threaded rod 8. A hinge rod 10 is hinged inside the movable block 9. A push plate 11 is hinged to the other end of the hinge rod 10. A round shaft 12 is fixedly sleeved inside the push plate 11. A movable wheel 13 is movably sleeved on the outer surface of the round shaft 12. A limit groove 14 is opened at the bottom of the round block 6. A limit block 15 is movably installed inside the limit groove 14. The bottom of the limit block 15 is fixedly connected to the top of the push plate 11.

[0025] The operator aligns the double threaded rod 8 with the round hole of the part that needs to be pressed to taper, and then inserts the three push plates 11 into the hole. At this time, the drive motor 7 is started, causing the double threaded rod 8 to rotate, which drives the two moving blocks 9 to move in opposite directions. The hinge rod 10 will push the push plates 11 to move outward under the limiting action of the limiting block 15, so that the three push plates 11 move outward at the same time, so that the movable wheel 13 contacts the inner wall of the round hole of the part, thereby pushing the part to move, so that the axis of the round hole is coaxial with the axis of the double threaded rod 8.

[0026] The cylinder 4 has a groove 16 on its side, and the block 6 has a slider 17 fixedly installed inside the groove 16 on its side. The outer surface of the slider 17 is movably connected to the inner surface of the groove 16, and the bottom of the double threaded rod 8 has a base plate 18 fixedly installed.

[0027] As a technical optimization of this utility model, by setting a slider 17, the slider 17 can rise along the inner surface of the groove 16 when moving, thereby limiting the circular block 6.

[0028] The processing table 1 has a through hole 19 on its top, and a second pneumatic cylinder 20 is fixedly installed on the bottom of the inner surface of the processing table 1. A conical head 21 is fixedly installed on the top of the second pneumatic cylinder 20.

[0029] As a technical optimization of this utility model, the axis of the conical head 21 is coaxial with the axis of the double threaded rod 8, so that after the circular hole of the part is coaxial with the double threaded rod 8, the conical head 21 can be coaxial with the circular hole of the part.

[0030] Among them, the front and back top of the processing table 1 are fixedly installed with crossbars 22, and the left and right sides of the outer surface of the crossbars 22 are movably sleeved with movable frames 23.

[0031] As a technical optimization of this utility model, the operator can push the movable frame 23 to make the movable frame 23 move along the outer surface of the crossbar 22.

[0032] Among them, a pressure plate 24 is movably connected to the top of the inner surface of the movable frame 23, and side plates 25 are fixedly installed on both the left and right sides of the pressure plate 24. The inner surface of the side plate 25 is movably connected to the outer surface of the movable frame 23, and a slot 26 is opened inside the side plate 25.

[0033] As a technical optimization of this utility model, when the side plate 25 moves downward, it will drive the pressure plate 24 to move downward, thereby pressing and fixing the parts and preventing the conical head 21 from pushing the parts upward when it rises.

[0034] Among them, a fixed block 27 is fixedly connected to the front end of the top of the movable frame 23, a circular sleeve 28 is movably sleeved inside the fixed block 27, and a lead screw 29 is fixedly sleeved inside the circular sleeve 28.

[0035] As a technical optimization of this utility model, by setting a fixing block 27, the fixing block 27 can support and install the lead screw 29.

[0036] The lead screw 29 is fixedly connected to a handle 30 at its front end. A movable plate 31 is threaded onto the outer surface of the lead screw 29. The bottom of the movable plate 31 is movably connected to the top of the movable frame 23. An extrusion block 32 located inside the slot 26 is fixedly installed on both the left and right sides of the movable plate 31. The outer surface of the extrusion block 32 is movably connected to the inner surface of the slot 26.

[0037] As a technical optimization of this utility model, the operator rotates the handle 30, thereby causing the lead screw 29 to rotate, which in turn causes the lead screw 29 to move the moving plate 31 backward, thereby causing the outer surface of the pressing block 32 to press and push the inner surface of the slot 26, which in turn causes the side plate 25 to descend, and the side plate 25 to cause the pressure plate 24 to descend, thereby pressing and fixing the parts.

[0038] Working principle and usage process of this utility model:

[0039] The operator places the part to be processed on the top of the processing table 1, and then starts the first pneumatic cylinder 3, which drives the cylinder 4 downward, so that the three push plates 11 are inserted into the round hole of the part. At this time, the drive motor 7 is started, which drives the double threaded rod 8 to drive the two moving blocks 9 to move towards each other, so that the hinge rod 10 pushes the push plate 11 outward, so that the movable wheel 13 contacts the inner wall of the round hole, and then pushes the inner wall of the round hole to finely adjust the position of the part, so that the axis of the round hole is coaxial with the axis of the double threaded rod 8. At this time, the operator adjusts the position of the movable frame 23 so that the pressure plate 24 is above the part, and then rotates the handle 30, which drives the lead screw 29 to rotate, so that the lead screw 29 drives the moving plate 31 to move backward. The pressing block 32 will press the inner surface of the pushing groove 26, thereby driving the side plate 25 to move downward, so that the side plate 25 drives the pressure plate 24 to move downward and press the part.

[0040] At this time, the operator can activate the second pneumatic cylinder 20, which will cause the conical head 21 to rise. Since the axis of the conical head 21 is coaxial with the axis of the double threaded rod 8, the conical head 21 is coaxial with the circular hole of the part, thus enabling precise extrusion of the hole taper. As the conical head 21 rises continuously, it will extrude the circular hole. When the top of the conical head 21 contacts the bottom of the base plate 18, the conical head 21 will push the base plate 18 to rise, causing the movable wheel 13 to roll along the inner wall of the circular hole. This causes the circular block 6 to rise under the limiting action of the slider 17, allowing the three push plates 11 to gradually exit the interior of the part, avoiding affecting the processing of the part.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] 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.

Claims

1. An apparatus for extruding a taper hole, comprising a processing table (1), characterized in that: A bracket (2) is fixedly installed on the rear side of the top of the processing table (1). A first pneumatic cylinder (3) is fixedly installed on the top of the bracket (2). The bottom end of the first pneumatic cylinder (3) passes through the bracket (2) and extends to the bottom of the bracket (2) and is movably sleeved with the inner wall of the bracket (2). A cylinder (4) is fixedly connected to the bottom end of the first pneumatic cylinder (3). A spring (5) is fixedly connected to the top of the inner surface of the cylinder (4). A round block (6) is fixedly connected to the bottom end of the spring (5). The outer surface of the round block (6) is movably sleeved with the inner surface of the cylinder (4). A drive motor (7) is fixedly sleeved inside the round block (6). (7) A double threaded rod (8) is fixedly connected to the other end of the output shaft. A moving block (9) is threadedly sleeved on the top and bottom of the outer surface of the double threaded rod (8). A hinge rod (10) is hinged inside the moving block (9). A push plate (11) is hinged to the other end of the hinge rod (10). A round shaft (12) is fixedly sleeved inside the push plate (11). A movable wheel (13) is movably sleeved on the outer surface of the round shaft (12). A limit groove (14) is opened at the bottom of the round block (6). A limit block (15) is movably installed inside the limit groove (14). The bottom of the limit block (15) is fixedly connected to the top of the push plate (11).

2. The apparatus for forming a taper of an extrusion hole according to claim 1, characterized in that: The cylinder (4) has a groove (16) on its side. The block (6) has a slider (17) fixedly installed inside the groove (16) on its side. The outer surface of the slider (17) is movably connected to the inner surface of the groove (16). The bottom of the double threaded rod (8) has a base plate (18) fixedly installed.

3. The apparatus for forming a taper of an extrusion hole according to claim 1, characterized in that: The processing table (1) has a through hole (19) at the top, and a second pneumatic cylinder (20) is fixedly installed at the bottom of the inner surface of the processing table (1). A conical head (21) is fixedly installed at the top of the second pneumatic cylinder (20).

4. The apparatus for forming a taper of an extrusion hole according to claim 1, characterized in that: The processing table (1) has a crossbar (22) fixedly installed inside the top of the front and back sides, and the crossbar (22) has movable frames (23) movably sleeved on the left and right sides of the outer surface of the crossbar (22).

5. The apparatus for forming a taper of an extrusion hole according to claim 4, characterized in that: A pressure plate (24) is movably connected to the top of the inner surface of the movable frame (23). Side plates (25) are fixedly installed on both the left and right sides of the pressure plate (24). The inner surface of the side plate (25) is movably connected to the outer surface of the movable frame (23). A slot (26) is opened inside the side plate (25).

6. The apparatus for forming a taper of an extrusion hole according to claim 4, characterized in that: A fixed block (27) is fixedly connected to the front end of the top of the movable frame (23). A circular sleeve (28) is movably sleeved inside the fixed block (27). A lead screw (29) is fixedly sleeved inside the circular sleeve (28).

7. The apparatus for forming a taper in an extrusion hole according to claim 6, characterized in that: The front end of the lead screw (29) is fixedly connected to a handle (30). A movable plate (31) is threaded onto the outer surface of the lead screw (29). The bottom of the movable plate (31) is movably connected to the top of the movable frame (23). On both the left and right sides of the movable plate (31), an extrusion block (32) located inside the slot (26) is fixedly installed. The outer surface of the extrusion block (32) is movably connected to the inner surface of the slot (26).

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