Aluminum alloy extruded tap with lubricating microgrooves

Abstract

This utility model discloses an aluminum alloy extrusion tap with lubricating microgrooves, including a support base, a transmission rod, an extrusion tap body, and a drive mechanism. The transmission rod is rotatably connected to the support base, and the extrusion tap body is coaxially fixed to one end of the transmission rod. The beneficial effects of this utility model are: by setting a drive mechanism, and then connecting the locking rod in the drive mechanism with the locking groove, the synchronous wheel and the transmission rod can rotate synchronously with the drive wheel, thereby driving the extrusion tap body to rotate at high speed to achieve milling operations. Furthermore, by setting an adjustment unit, a linkage structure is formed by the combination of an active adjustment rod and a linkage adjustment rod, which drives the arc-shaped linkage plate to rotate, allowing the contact end to quickly contact or separate from the adjustment protrusion, and thus allowing the locking rod to quickly engage or separate from the locking groove. The use of linkage transmission to achieve mechanical clutch avoids the winding current surge and insulation aging problems caused by frequent start-stop of traditional motors.

Description

Technical Field

[0001] This utility model relates to a tap, specifically an aluminum alloy extrusion tap with lubrication microgrooves, belonging to the field of tap technology. Background Technology

[0002] Aluminum alloy extrusion taps are important tools for aluminum alloy machining. They form threads on aluminum alloy materials through extrusion. The material of the aluminum alloy extrusion tap affects its service life. High-quality taps are mostly made of high-performance alloy steel. Different aluminum alloy materials have different requirements for taps. Surface treatment of taps can improve their wear resistance. Coating treatment can make taps more durable in aluminum alloys. The precision of the extrusion tap determines the quality of the thread.

[0003] However, most existing forming taps have various problems. For example, in the processing method of forming tap disclosed in CN1162242C, although the life of forming tap is four to six times or even more than that of current products, and the performance-price ratio is excellent, in this technical solution and most current forming taps, the forming tap needs to rely on the high-speed rotation of the drive equipment to complete the thread forming. However, in order to avoid excessive extrusion and damage to the threaded hole, the machine must be stopped immediately after processing. This high-frequency start and stop operation will cause the motor winding to be subjected to repeated current impacts, which will accelerate insulation aging or even burn out. Moreover, the start and stop interval affects the continuous processing rhythm, especially in mass production. At the same time, sudden stop may cause tap springback, affecting the surface quality of the thread. Utility Model Content

[0004] This utility model provides a solution that is significantly different from existing technologies, addressing the problem that existing technologies are too simplistic. Specifically, the purpose of this utility model is to solve the aforementioned shortcomings of existing technologies by proposing an aluminum alloy extrusion tap with lubrication microgrooves.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An aluminum alloy extrusion tap with lubrication microgrooves includes a support base, a transmission rod, an extrusion tap body, and a drive mechanism. The transmission rod is rotatably connected to the support base, the extrusion tap body is coaxially fixed to one end of the transmission rod, and the drive mechanism is disposed on the support base.

[0007] The driving mechanism includes a drive wheel, a slot, a timing wheel, a limiting hole, a locking rod, and an adjustment unit. The drive wheel is rotatably connected to one side of the support base. The end of the transmission rod away from the extrusion tap body passes through the axis of the drive wheel and is rotatably connected to the drive wheel. The slot is recessed on the drive wheel near the timing wheel. The timing wheel is coaxially fixed on the transmission rod. The limiting hole is axially located inside the timing wheel. The locking rod is slidably engaged in the limiting hole, and one end abuts against the slot.

[0008] As a further embodiment of this utility model: the adjustment unit includes a guide groove, an adjustment protrusion, a support plate, an arc-shaped linkage plate, and an abutment end. The guide groove is disposed on the peripheral wall of the synchronous wheel and communicates with the limiting hole. The adjustment protrusion is fixed on the side wall of the locking rod and slidably locked in the guide groove. The support plate is fixed on one side of the support base. One end of the arc-shaped linkage plate is rotatably connected to the support plate. The abutment end is disposed at the other end of the arc-shaped linkage plate and has an inclined structure on the side near the adjustment protrusion.

[0009] As a further embodiment of this utility model: the adjustment unit further includes an active adjustment rod and a linkage adjustment rod, two adjustment protrusions are arranged side by side, the arc-shaped linkage plate is rotatably connected to the upper adjustment protrusion, one end of the active adjustment rod is rotatably connected to the lower adjustment protrusion, and both ends of the linkage adjustment rod are rotatably connected between the arc-shaped linkage plate and the active adjustment rod, respectively.

[0010] As a further embodiment of this utility model: a round rod is fixed on the support plate, one end of the arc-shaped linkage plate and the active adjustment rod are respectively rotatably connected to the round rod, and a torsion spring is sleeved on the outside of the round rod. One end of the torsion spring is fixed to the round rod, and the other end is fixed to the arc-shaped linkage plate or the active adjustment rod.

[0011] As a further improvement of this utility model: a reset spring is provided in the limiting hole, and one end of the reset spring abuts against the locking rod.

[0012] As a further embodiment of this utility model: a liquid injection pipe is rotatably connected to one end of the extrusion tap body near the drive wheel via a sealed bearing, and a guide pipe is provided at the tail end of the extrusion tap body. A cavity is provided at the shaft center of the transmission rod, and the guide pipe is connected to the cavity. A lubrication microgroove is provided on the outer wall of the extrusion tap body, and the lubrication microgroove is connected to the guide pipe.

[0013] The beneficial effects of this utility model are:

[0014] In this invention, a drive mechanism is set up, and the locking rod in the drive mechanism connects with the slot, so that the synchronous wheel and the transmission rod can rotate synchronously with the drive wheel, thereby driving the extrusion tap body to rotate at high speed to achieve milling operation. Through the setting of the adjustment unit, the active adjustment rod and the linkage adjustment rod are combined to form a linkage structure, which drives the arc-shaped linkage plate to rotate, so that the abutting end can quickly abut or separate from the adjustment protrusion, and thus the locking rod can quickly engage or separate from the slot. The mechanical clutch is achieved by linkage transmission, which avoids the winding current impact and insulation aging problems caused by the frequent start and stop of traditional motors, significantly reduces the motor failure rate, and at the same time reduces downtime. Moreover, the mechanical clutch avoids the tap springback phenomenon during emergency stop, which is simple, efficient and practical. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the transmission rod and its connection structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the drive mechanism structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the drive wheel and its overall connection structure of the present invention;

[0019] Figure 5 This is a schematic diagram of the synchronous pulley connection structure of this utility model.

[0020] In the diagram: 1. Support base, 2. Transmission rod, 3. Extrusion tap body, 4. Drive mechanism, 41. Drive wheel, 42. Slot, 43. Synchronous pulley, 44. Limiting hole, 45. Connecting rod, 46. Guide groove, 47. Adjusting protrusion, 48. Support plate, 49. Arc-shaped linkage plate, 410. Abutment end, 411. Active adjustment rod, 412. Linkage adjustment rod, 413. Torsion spring, 414. Return spring, 5. Injection tube, 6. Guide tube. Detailed Implementation

[0021] 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. Example 1

[0022] like Figures 1 to 5As shown, an aluminum alloy extrusion tap with lubrication microgrooves includes a support base 1, a transmission rod 2, an extrusion tap body 3, and a drive mechanism 4. The transmission rod 2 is rotatably connected to the support base 1, the extrusion tap body 3 is coaxially fixed to one end of the transmission rod 2, and the drive mechanism 4 is set on the support base 1.

[0023] The drive mechanism 4 includes a drive wheel 41, a slot 42, a synchronous wheel 43, a limiting hole 44, a locking rod 45, and an adjustment unit. The drive wheel 41 is rotatably connected to one side of the support base 1. The end of the transmission rod 2 away from the extrusion tap body 3 passes through the axis of the drive wheel 41 and is rotatably connected to the drive wheel 41. The slot 42 is recessed on the drive wheel 41 on the side near the synchronous wheel 43. The synchronous wheel 43 is coaxially fixed on the transmission rod 2. The limiting hole 44 is axially arranged in the synchronous wheel 43. The locking rod 45 is slidably locked in the limiting hole 44, and one end abuts in the slot 42.

[0024] The adjustment unit includes a guide groove 46, an adjustment protrusion 47, a support plate 48, an arc-shaped linkage plate 49, and an abutment end 410. The guide groove 46 is set on the peripheral wall of the synchronous pulley 43 and communicates with the limiting hole 44. The adjustment protrusion 47 is fixed on the side wall of the snap-fit ​​rod 45 and is slidably snapped into the guide groove 46. The support plate 48 is fixed on one side of the support base 1. One end of the arc-shaped linkage plate 49 is rotatably connected to the support plate 48. The abutment end 410 is set on the other end of the arc-shaped linkage plate 49, and the side near the adjustment protrusion 47 has an inclined structure.

[0025] The adjustment unit also includes an active adjustment rod 411 and a linkage adjustment rod 412. Two adjustment protrusions 47 are arranged side by side, one above the other. The arc-shaped linkage plate 49 is rotatably connected to the upper adjustment protrusion 47. One end of the active adjustment rod 411 is rotatably connected to the lower adjustment protrusion 47. The two ends of the linkage adjustment rod 412 are rotatably connected between the arc-shaped linkage plate 49 and the active adjustment rod 411, respectively.

[0026] In this invention, a drive mechanism 4 is provided, and the locking rod 45 in the drive mechanism 4 engages with the slot 42, thereby enabling the synchronous wheel 43 and the transmission rod 2 to rotate synchronously with the drive wheel 41. This drives the extrusion tap body 3 to rotate at high speed to achieve milling operations. Through the setting of the adjustment unit, the active adjustment rod 411 and the linkage adjustment rod 412 are combined to form a linkage structure, which drives the arc-shaped linkage plate 49 to rotate, so that the abutment end 410 can quickly abut or separate from the adjustment protrusion 47, and the locking rod 45 can quickly engage or separate from the slot 42. The mechanical clutch is achieved by using linkage transmission, which avoids the winding current surge and insulation aging problems caused by frequent start and stop of traditional motors, significantly reduces the motor failure rate, and reduces downtime. Moreover, the mechanical clutch avoids the tap springback phenomenon during emergency stop, making it simple, efficient and practical. Example 2

[0027] like Figures 1 to 5 As shown, in addition to all the technical features included in Embodiment 1, this embodiment also includes:

[0028] A round rod is fixed on the support plate 48. One end of the arc-shaped linkage plate 49 and the active adjustment rod 411 are rotatably connected to the round rod, and a torsion spring 413 is sleeved on the outside of the round rod. One end of the torsion spring 413 is fixed to the round rod, and the other end is fixed to the arc-shaped linkage plate 49 or the active adjustment rod 411. The elastic force of the torsion spring 413 enables the arc-shaped linkage plate 49 and the active adjustment rod 411 to quickly reset.

[0029] A reset spring 414 is provided inside the limiting hole 44. One end of the reset spring 414 abuts against the locking rod 45. The elastic force of the reset spring 414 enables the locking rod 45 to move quickly and engage with the locking groove 42.

[0030] One end of the extrusion tap body 3 near the drive wheel 41 is rotatably connected to an injection pipe 5 via a sealed bearing, and a guide pipe 6 is provided at the tail end of the extrusion tap body 3. A cavity is provided at the shaft center of the transmission rod 2, and the guide pipe 6 is connected to the cavity. A lubrication microgroove is provided on the outer wall of the extrusion tap body 3, and the lubrication microgroove is connected to the guide pipe 6. The external lubricating fluid can flow into the lubrication microgroove through the injection pipe 5 and the guide pipe 6, thereby lubricating the extrusion tap body 3.

[0031] Working principle: When using this tap, first connect the injection pipe 5 to the external lubricant guide pipe. The external lubricant flows into the lubrication microgroove through the injection pipe 5 and guide pipe 6. Then connect the drive wheel 41 to the external drive device and drive the drive wheel 41 to rotate. When it is necessary to press the tap body 3 to rotate, rotate the active adjustment rod 411. This, through the linkage adjustment rod 412, drives the arc-shaped linkage plate 49 to rotate, causing the abutment end 410 of the arc-shaped linkage plate 49 to separate from the adjusting protrusion 47. At this time, the locking rod 45 returns to its reset position. The spring 414 slides down under its elastic force and engages with the slot 42. At this time, the drive wheel 41 drives the synchronous wheel 43, the transmission rod 2, and the extrusion tap body 3 to rotate synchronously. When the extrusion tap body 3 needs to stop rotating, the active adjustment rod 411 is released. At this time, the active adjustment rod 411 is reset under the action of the torsion spring 413 and drives the arc-shaped linkage plate 49 to rotate, so that its abutting end 410 abuts against the adjusting protrusion 47, thereby driving the locking rod 45 to separate from the slot 42, thereby causing the transmission rod 2 to lose power and stop rotating.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An aluminum alloy extrusion tap with lubricating microgrooves, comprising a support base (1), a transmission rod (2), an extrusion tap body (3), and a drive mechanism (4), characterized in that, The transmission rod (2) is rotatably connected to the support base (1), the extrusion tap body (3) is coaxially fixed to one end of the transmission rod (2), and the drive mechanism (4) is set on the support base (1); The drive mechanism (4) includes a drive wheel (41), a slot (42), a synchronous wheel (43), a limiting hole (44), a locking rod (45), and an adjustment unit. The drive wheel (41) is rotatably connected to one side of the support base (1). The end of the transmission rod (2) away from the extrusion tap body (3) passes through the axis of the drive wheel (41) and is rotatably connected to the drive wheel (41). The slot (42) is recessed on the drive wheel (41) near the synchronous wheel (43). The synchronous wheel (43) is coaxially fixed on the transmission rod (2). The limiting hole (44) is axially arranged in the synchronous wheel (43). The locking rod (45) is slidably locked in the limiting hole (44) and one end abuts in the slot (42).

2. The aluminum alloy extrusion tap with lubrication microgrooves according to claim 1, characterized in that: The adjustment unit includes a guide groove (46), an adjustment protrusion (47), a support plate (48), an arc-shaped linkage plate (49), and an abutment end (410). The guide groove (46) is set on the peripheral wall of the synchronous wheel (43) and communicates with the limiting hole (44). The adjustment protrusion (47) is fixed on the side wall of the snap-fit ​​rod (45) and is slidably snapped into the guide groove (46). The support plate (48) is fixed on one side of the support base (1). One end of the arc-shaped linkage plate (49) is rotatably connected to the support plate (48). The abutment end (410) is set on the other end of the arc-shaped linkage plate (49) and has an inclined structure on the side near the adjustment protrusion (47).

3. The aluminum alloy extrusion tap with lubrication microgrooves according to claim 2, characterized in that: The adjustment unit also includes an active adjustment rod (411) and a linkage adjustment rod (412). Two adjustment protrusions (47) are arranged side by side. The arc-shaped linkage plate (49) is rotatably connected to the upper adjustment protrusion (47). One end of the active adjustment rod (411) is rotatably connected to the lower adjustment protrusion (47). The two ends of the linkage adjustment rod (412) are respectively rotatably connected between the arc-shaped linkage plate (49) and the active adjustment rod (411).

4. The aluminum alloy extrusion tap with lubrication microgrooves according to claim 3, characterized in that: A round rod is fixed on the support plate (48). One end of the arc-shaped linkage plate (49) and the active adjustment rod (411) are respectively rotatably connected to the round rod, and a torsion spring (413) is sleeved on the outside of the round rod. One end of the torsion spring (413) is fixed on the round rod, and the other end is fixed to the arc-shaped linkage plate (49) or the active adjustment rod (411).

5. The aluminum alloy extrusion tap with lubrication microgrooves according to claim 1, characterized in that: A reset spring (414) is provided inside the limiting hole (44), and one end of the reset spring (414) abuts against the locking rod (45).

6. The aluminum alloy extrusion tap with lubrication microgrooves according to claim 1, characterized in that: The end of the extrusion tap body (3) near the drive wheel (41) is rotatably connected to the injection pipe (5) through a sealed bearing, and a guide pipe (6) is provided at the tail end of the extrusion tap body (3). A cavity is provided at the axis of the transmission rod (2), and the guide pipe (6) is connected to the cavity. A lubrication microgroove is provided on the outer wall of the extrusion tap body (3), and the lubrication microgroove is connected to the guide pipe (6).

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