Integrated tool for processing front and back surfaces of valve hole

Abstract

The utility model relates to the technical field of hub machining, and discloses a valve hole front and back face machining integrated tool which comprises a tool handle, a drilling tool bit is arranged at the front end of the tool handle, the outer diameter of the drilling tool bit corresponds to the hole diameter of a valve hole, and the drilling tool bit is used for machining the hole diameter of the valve hole. An eccentric tool is arranged at the rear end of the drilling tool bit and used for counter bore machining of the reverse side of the valve hole; a taper drill bit is coaxially connected to the rear end of the drilling tool bit and used for machining of valve hole front face modeling. The integrated cutter provided by the utility model integrates triple functions of valve hole drilling, front surface modeling and reverse surface countersinking, can finish all working procedures of valve hole machining at one time, avoids the trouble of frequently replacing cutters to sequentially execute single machining tasks in a traditional machining mode, simplifies the machining process, and improves the machining efficiency; and meanwhile, the steps of frequent tool changing and tool setting are omitted, and the machining precision of the valve hole is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub processing technology, and in particular to an integrated tool for machining the front and back of valve holes. Background Technology

[0002] As the assembly point for the valve stem, the machining accuracy of the wheel hub valve bore is crucial for ensuring tire pressure. The machining process for the valve bore involves sequentially drilling to achieve the inner diameter, shaping the front side, and scribing the back side. Current methods require alternating use of drill bits, front shaping tools, and scribing tools to complete these steps. This method involves numerous repetitive operations, resulting in a cumbersome process and low efficiency. Furthermore, frequent tool changes make it difficult to guarantee machining accuracy.

[0003] Therefore, developing an integrated tool for machining both the front and back sides of valve holes for use in wheel hub valve hole machining is an urgent problem to be solved. Utility Model Content

[0004] The purpose of this utility model is to address the above-mentioned problems by providing an integrated tool for machining the front and back sides of valve holes, thereby solving the problems of frequent tool changes, cumbersome processes, low machining efficiency, and insufficient machining accuracy in the existing wheel hub valve hole machining process.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] An integrated tool for machining the front and back sides of a valve hole includes a tool holder, a drilling head at the front end of the tool holder with an outer diameter corresponding to the valve hole diameter for machining the valve hole diameter; an eccentric tool at the rear end of the drilling head for countersinking the back side of the valve hole; and a tapered drill bit coaxially connected to the rear end of the drilling head for machining the front side of the valve hole.

[0007] Preferably, the drilling head is connected to the tapered drill bit via a transition rod, and the transition rod has an avoidance structure to avoid interfering with the horizontal offset of the integrated tool when machining the countersunk hole on the reverse side of the valve hole.

[0008] Preferably, the avoidance structure includes a recessed structure provided on the transition rod, and the cutting edge of the eccentric tool is exposed in the recessed structure corresponding to the countersunk hole position on the opposite side of the valve hole.

[0009] Preferably, the avoidance structure further includes a beveled structure disposed on the transition rod, the beveled structure being a wedge-shaped structure with a certain bevel extending from the top of the transition rod to the recessed structure.

[0010] Preferably, the eccentric cutter is detachably connected to the cutter holder to facilitate quick replacement of the eccentric cutter.

[0011] The beneficial effects of this utility model are as follows: The integrated tool provided by this utility model integrates the triple functions of valve hole drilling, front shaping, and reverse countersinking, which can complete all the processes of valve hole machining in one go. This eliminates the trouble of frequently changing tools and performing single machining tasks in traditional machining methods, simplifying the machining process and improving machining efficiency. At the same time, it eliminates the steps of frequent tool changing and tool setting, ensuring the machining accuracy of the valve hole. The detachable connecting tool holder of the eccentric tool facilitates the disassembly and replacement of the eccentric tool. When the eccentric tool wears and affects the machining accuracy, it can be quickly replaced. In addition, when the diameter of the countersinking hole on the reverse side of the valve hole being machined is different, the corresponding eccentric tool can also be used to complete the countersinking machining of different diameter holes, improving the applicability of the integrated machining tool. Attached Figure Description

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

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

[0014] Figure 2 This is a structural diagram of the front shape of the valve hole during the processing of this utility model.

[0015] Figure 3 This is a schematic diagram of the structure when processing the countersunk hole on the reverse side of the valve hole according to this utility model.

[0016] In the diagram: 10--tool holder; 20--drill bit; 30--eccentric tool; 40--tapered drill bit; 50--transition rod; 60--avoidance structure; 61--recessed structure; 62--beveled structure. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] like Figure 1-3 As shown, an integrated tool for machining the front and back sides of a valve hole includes a tool holder 10. A drilling head 20 is provided at the front end of the tool holder 10, and the outer diameter of the drilling head 20 is set to correspond to the diameter of the valve hole for machining the valve hole diameter. An eccentric tool 30 is provided at the rear end of the drilling head 20 for countersinking machining on the back side of the valve hole. A tapered drill bit 40 is coaxially connected to the rear end of the drilling head 20 for machining the front side of the valve hole.

[0019] During machining, the end of the shank 10 of the integrated tool is mounted on the machine tool. The machine tool drives the integrated tool downwards, aligning it with the valve hole position on the wheel hub to perform machining operations. The drilling head 20 first performs the opening operation on the valve hole position; after completing the valve hole diameter machining, the drilling head 20 continues downwards through the valve hole, and the tapered drill bit 40 contacts the wheel hub to perform the front shaping operation of the valve hole; after completing the front shaping operation of the valve hole, the machine tool drives the integrated tool upwards and horizontally deviates from the valve hole centerline by a certain distance, so that the eccentric tool 30 approaches the valve hole reverse hole forming position to perform the countersunk hole machining operation on the reverse side of the valve hole, completing the valve hole machining. At this time, the machine tool drives the integrated tool back to the position coinciding with the valve hole centerline and retracts the tool.

[0020] In this embodiment, the integrated tool combines the triple functions of valve hole drilling, front shaping, and reverse countersinking, which can complete all the valve hole machining processes in one go. This eliminates the trouble of frequently changing tools and performing a single machining task in the traditional machining method, simplifies the machining process, and improves machining efficiency. At the same time, it eliminates the steps of frequent tool changing and tool setting, ensuring the machining accuracy of the valve hole.

[0021] In a preferred embodiment, the drilling head 20 is connected to the tapered drill bit 40 via a transition rod 50. The transition rod 50 is provided with an avoidance structure 60 to avoid interfering with the horizontal offset of the integrated tool when machining the countersunk hole on the reverse side of the valve hole.

[0022] Preferably, the clearance structure 60 includes a recessed structure 61 provided on the transition rod 50, and the cutting edge of the eccentric tool 30 is exposed in the recessed structure 61 corresponding to the countersunk hole position on the reverse side of the valve hole. When machining the countersunk hole on the reverse side of the valve hole, the integrated tool moves upward. When it moves upward to the point where the clearance hole of the transition rod 50 is aligned with the valve hole position, the machine tool drives the integrated tool to move horizontally a certain distance, and the eccentric tool 30 performs eccentric machining on the countersunk hole on the reverse side of the valve hole.

[0023] Preferably, the avoidance structure 60 further includes a beveled structure 62 disposed on the transition rod 50. The beveled structure 62 is a wedge-shaped structure with a certain slope extending from the top of the transition rod 50 to the recessed structure 61. This further avoids the transition rod 50 interfering with the machining operation of the countersunk hole on the reverse side of the valve hole. At the same time, the beveled structure 62 facilitates the full exposure of the eccentric tool 30, which is beneficial for the efficient machining of the countersunk hole on the reverse side of the valve hole.

[0024] The eccentric tool 30 is detachably connected to the tool holder 10 for easy disassembly and replacement. When wear affects machining accuracy, the eccentric tool 30 can be quickly replaced. Furthermore, when different diameters of the countersunk holes on the reverse side of the valve bore are being machined, different diameter countersunk holes can be machined by replacing the corresponding eccentric tool 30, thus improving the applicability of the integrated machining tool.

[0025] The above-disclosed embodiments are merely specific examples of this utility model, but this utility model is not limited thereto. For those skilled in the art, any modifications made without departing from the principle of this utility model should be considered as protected by this utility model.

Claims

1. A valve hole front and back face machining integrated tool, characterized in that: The application relates to a drill holder (10) provided with a drilling cutter head (20) at the front end, the outer diameter of the drilling cutter head (20) corresponding to the hole diameter of a valve hole and being used for machining the valve hole diameter; an eccentric cutter (30) is arranged at the rear end of the drilling cutter head (20) and is used for machining a counterbore on the reverse side of the valve hole; and a taper drill (40) is coaxially connected to the rear end of the drilling cutter head (20) and is used for machining the front side of the valve hole.

2. The valve hole front and back face machining integrated cutter according to claim 1, characterized in that: The drilling cutter head (20) is connected to the taper drill (40) through a transition rod (50), the transition rod (50) is provided with a avoiding structure (60) to avoid the horizontal deviation of the integrated cutter when the counterbore on the reverse side of the valve hole is machined.

3. The valve hole front and back face machining integrated cutter according to claim 2, characterized in that: The avoiding structure (60) comprises a recessed structure (61) arranged on the transition rod (50), and the cutting edge of the eccentric cutter (30) is exposed in the recessed structure (61) and corresponds to the hole position of the counterbore on the reverse side of the valve hole.

4. The valve hole front and back face machining integrated cutter according to claim 3, characterized in that: The avoiding structure (60) further comprises a cutting bevel structure (62) arranged on the transition rod (50), and the cutting bevel structure (62) is a wedge-shaped structure with a certain bevel extending from the top end of the transition rod (50) to the recessed structure (61).

5. The valve hole front and back face machining integrated cutter according to claim 1, characterized in that: The eccentric cutter (30) is detachably connected to the drill holder (10), so that the eccentric cutter (30) can be quickly replaced.

Images