Reaming structure for machining mechanical parts

Abstract

The utility model relates to the technical field of part machining, and discloses a reaming structure for mechanical part machining, which comprises a cutter shaft arranged on a main shaft, the cutter shaft is internally provided with a cavity, the cavity is internally provided with a cutter holder adjusting assembly, and the cutter holder adjusting assembly comprises a rotating rod rotationally arranged in the cutter shaft; a plurality of moving seats are arranged on the outer side of the rotating rod in the cavity, the tail ends of the moving seats penetrate through the side wall of the cavity in a sliding mode and are connected with tool bits, and transmission parts are arranged between the moving seats and the threaded rod. Through cooperative use of the tool bits, the tool apron adjusting assembly and the driving assembly, the worm drives the worm gear to rotate, so that the rotating rod rotates, the driving unit is driven to push the tool apron to move outwards along a straight line, the distance between the opposite tool bits is adjusted, then the reaming radius of the tool bits is changed, and the reaming requirements of different hole diameters are met; the device has the effects of high flexibility and convenience in use.

Description

Technical Field

[0001] The present application relates to the technical field of parts processing, and in particular to a hole expansion structure for machining mechanical parts. Background Art

[0002] In the mechanical parts processing industry, hole reaming is a crucial step in improving the precision and adaptability of component hole structures. Its efficiency and quality directly impact the overall performance and cost of the product. Currently, mainstream hole reaming technologies rely primarily on traditional mechanical reaming tools, such as reamer drills and boring tools. These tools provide reliable performance for standard hole diameters, but when processing holes of varying diameters, operators must frequently change between tools of varying specifications, which not only increases the complexity of the operation but also prolongs setup time. Utility Model Content

[0003] In order to solve the problem that operators of mechanical reaming tools, such as reaming drills and boring tools, need to frequently replace tools of different specifications when facing different hole diameter requirements, the present application provides a reaming structure for machining mechanical parts.

[0004] The present application provides a hole expansion structure for machining mechanical parts, which adopts the following technical solution:

[0005] A hole-reaming structure for machining mechanical parts comprises a tool shaft arranged on a main shaft, a cavity being arranged inside the tool shaft, a tool holder adjustment assembly being arranged in the cavity, the tool holder adjustment assembly comprising a rotating rod rotatably arranged in the tool shaft, a plurality of movable seats being arranged on the outside of the rotating rod in the cavity, the ends of the movable seats sliding through the side walls of the cavity and being connected to a tool head, a transmission component being arranged between the plurality of movable seats and the threaded rod for converting the circular motion of the threaded rod into the linear motion of the movable seat to adjust the position of the tool head.

[0006] Preferably, an observation port is provided on the cavity, and a scale is provided on the side of the observation port.

[0007] Preferably, a drive assembly is provided on the threaded rod, and the drive assembly includes a worm wheel provided on the threaded rod, and a worm is provided on the side of the worm wheel in the cavity, and the worm is engaged with the worm wheel, and the end of the worm passes through the knife shaft and reaches the outside of the knife shaft.

[0008] Preferably, the transmission component includes a driving unit arranged on the rotating rod, the driving unit includes a driving platform arranged on the rotating rod, and the driving platform is provided with a sliding groove.

[0009] Preferably, the movable seat includes a connecting shaft slidably arranged on the slide groove, and support arms are provided at both ends of the connecting shaft. The ends of the support arms are connected to the knife seat, and the knife seat is detachably connected to the knife head.

[0010] In summary, this application has the following beneficial technical effects:

[0011] By cooperating with the cutter head, the cutter seat adjustment assembly and the drive assembly, the worm gear is driven by the worm to rotate, so that the rotating rod rotates, and the drive unit drives the cutter seat to move outward along a straight line, thereby adjusting the distance between the relative cutter heads, and then changing the hole expansion radius of the cutter head, which is suitable for the hole expansion requirements of different hole diameters; compared with the existing technology, it has high flexibility and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of a first-perspective three-dimensional structure of an embodiment of the application;

[0013] Figure 2 is a schematic diagram of a second perspective three-dimensional structure of an embodiment of the application;

[0014] Figure 3 It is a schematic diagram of the three-dimensional structure from a third perspective of the embodiment of the application.

[0015] Explanation of the accompanying reference numerals: 1. tool shaft; 101. mounting shaft; 102. observation port; 2. tool head; 3. tool holder adjustment assembly; 301. threaded rod; 302. drive unit; 3021. drive platform; 3022. slide; 303. movable seat; 3031. tool holder; 3032. support arm; 3033. connecting shaft; 4. drive assembly; 401. worm gear; 402. worm. DETAILED DESCRIPTION

[0016] The following is combined with Figure 1-3 This application is described in further detail.

[0017] The embodiment of the present application discloses a hole enlarging structure for machining mechanical parts. Figure 1-3 A reaming structure for machining mechanical parts includes a cutter shaft 1. The cutter shaft 1 includes a mounting shaft 101 mounted on the spindle of a reaming machine or a drilling machine head. A cavity is opened on the inner side of the mounting shaft 101. The cavity can be used as a boundary to form an integral mounting shaft 101 by splicing two sections together to facilitate the overall machining and assembly.

[0018] Reference Figure 2 A tool holder adjustment assembly 3 is installed in the cavity, and the tool holder adjustment assembly 3 includes a rotating rod rotatably installed in the cavity, and a driving unit 302 is installed on the rotating rod. Several movable seats 303 are connected to the side of the driving unit 302. The end of the movable seat 303 passes through the installation shaft 101 and is slidably connected to the installation shaft 101. By rotating the rotating rod, the driving unit 302 is driven to push the tool holder 3031 to move outward along a straight line, thereby adjusting the distance between the relative tool heads 2, and thereby changing the expansion radius of the tool head 2.

[0019] Reference Figure 3 For example, the rotating rod can be a threaded rod 301, and the driving unit 302 includes a driving platform 3021 threadedly sleeved on the threaded rod 301, and a slide groove 3022 is provided on the side of the driving platform 3021, and the slide groove 3022 is inclined at 45 degrees to the moving path of the driving platform 3021; ​​the moving seat 303 includes a connecting shaft 3033 slidably installed in the slide groove 3022, and support arms 3032 are installed at both ends of the connecting shaft 3033, and the end of the support arm 3032 is connected to the tool holder 3031, and the tool holder 3031 is kept perpendicular to the slide groove 3022. The tool holder 3031 is detachably connected to the cutter head 2, such as by bolts, to facilitate the replacement of the damaged cutter head 2.

[0020] Reference Figure 1 An observation port 102 is also provided on the side of the cavity, and scale lines are installed on both sides of the observation port 102. A scale groove is provided on the side of the driving platform 3021, and the adjustment distance of the cutter head 2 can be seen through the scale lines. Using a 45° angle can ensure that the moving distance of the driving platform 3021 is equal to the outward moving distance of the tool holder 3031, that is, the outward moving distance of the cutter head 2.

[0021] Reference Figure 3 The threaded rod 301 is mounted with a drive assembly 4, which includes a worm wheel 401 mounted on the threaded rod 301. A worm 402 is mounted on the side of the worm wheel 401 in the cavity. The worm 402 meshes with the worm wheel 401. A rotation groove is mounted on the outside of the cavity. The end of the worm 402 passes through the blade shaft 1 and reaches the rotation groove. The end of the worm 402 has a hexagonal groove. An external tool, such as a hexagonal wrench, needs to be inserted into the hexagonal groove at the end of the worm 402 to rotate the worm. The rotation of the worm 402 drives the worm wheel 401 meshing with it to rotate. The worm wheel 401 is connected to the rotating rod 301, so the rotating rod begins to rotate, which can prevent misoperation.

[0022] The implementation principle of the hole expansion structure for machining mechanical parts in the embodiment of the present application is as follows:

[0023] Install the cutter shaft 1 on the spindle of a reaming machine or drilling machine head via the mounting shaft 101. Insert an external tool (such as a hexagonal wrench) into the hexagonal groove at the end of the worm 402 and rotate the worm. The rotation of the worm 402 drives the meshing worm wheel 401, which is connected to the rotating rod 301, causing the rotating rod to rotate. The rotation of the rotating rod 301 causes the threaded drive platform 3021 to move along the rotating rod. Because the guide slot 3022 on the side of the drive platform 3021 is inclined at 45°, this movement translates into linear outward movement of the support arm 3032 and the attached tool holder 3031. The tool holder 3031 drives the cutter head 2 outward, thereby changing the relative distance between the cutter heads and adjusting the radius of the hole. The viewing port 102 and the scale lines on both sides allow real-time monitoring of the adjusted distance of the cutter head 2 to ensure the accuracy of the hole size. If the hole radius needs to be adjusted, repeat the above steps until the desired hole size is achieved.

[0024] The machine tool is started, and the cutter shaft 1 begins to rotate and move downward, driving the cutter head 2 to contact the surface of the mechanical part to be processed. The cutter head 2 expands the hole according to the preset expansion radius until the desired hole diameter is reached.

[0025] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0026] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0027] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0028] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A hole-expanding structure for machining mechanical parts, comprising a cutter shaft (1) arranged on a main shaft, characterized in that: A cavity is provided inside the knife shaft (1), and a knife seat adjustment assembly (3) is provided in the cavity. The knife seat adjustment assembly (3) includes a rotating rod rotatably provided in the knife shaft (1), and a plurality of movable seats (303) are provided on the outside of the rotating rod in the cavity. The ends of the movable seats (303) slide through the side wall of the cavity and are connected to the knife head (2). A transmission component is provided between the plurality of movable seats (303) and the threaded rod (301), and is used to convert the circular motion of the threaded rod (301) into the linear motion of the movable seat (303) to adjust the position of the knife head (2).

2. The hole-expanding structure for machining mechanical parts according to claim 1, characterized in that: An observation port (102) is provided on the cavity, and a scale is provided on the side of the observation port (102).

3. The hole-expanding structure for machining mechanical parts according to claim 1, characterized in that: A drive assembly (4) is provided on the threaded rod (301), and the drive assembly (4) includes a worm wheel (401) provided on the threaded rod (301). A worm (402) is provided on the side of the worm wheel (401) in the cavity, and the worm (402) is engaged with the worm wheel (401). The end of the worm (402) passes through the knife shaft (1) and reaches the outside of the knife shaft (1).

4. The hole-expanding structure for machining mechanical parts according to claim 1, characterized in that: The transmission component comprises a driving unit (302) arranged on a rotating rod, the driving unit (302) comprises a driving platform (3021) transmission-arranged on the rotating rod, and a sliding groove (3022) is provided on the driving platform (3021).

5. The hole-expanding structure for machining mechanical parts according to claim 1, characterized in that: The movable seat (303) comprises a connecting shaft (3033) slidably arranged on the slide groove (3022), and support arms (3032) are provided at both ends of the connecting shaft (3033). The ends of the support arms (3032) are connected to a knife seat (3031), and the knife seat (3031) is detachably connected to the knife head (2).

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