WO2016000200A1 - 高效后出式等距螺母攻牙机 - Google Patents
高效后出式等距螺母攻牙机 Download PDFInfo
- Publication number
- WO2016000200A1 WO2016000200A1 PCT/CN2014/081335 CN2014081335W WO2016000200A1 WO 2016000200 A1 WO2016000200 A1 WO 2016000200A1 CN 2014081335 W CN2014081335 W CN 2014081335W WO 2016000200 A1 WO2016000200 A1 WO 2016000200A1
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- Prior art keywords
- cam
- tapping
- nut
- gear
- transmission mechanism
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/16—Thread cutting; Automatic machines specially designed therefor in holes of workpieces by taps
- B23G1/20—Machines with a plurality of working spindles
Definitions
- the invention patent relates to a device for processing internal thread of a nut, and particularly relates to a high-efficiency rear-out type equidistant nut tapping machine. Background technique
- Pneumatic nut tapping machine is a kind of processing equipment commonly used by nut manufacturers. It usually adopts pneumatic tapping method, which provides the tapping feed power directly through the cylinder, and provides rotary power through the drive motor to complete the nut tapping operation. .
- the problem to be solved by the patent of the present invention is that the existing nut tapping machine has low accuracy and low production efficiency.
- the technical solution adopted by the present invention provides an efficient rear-out isometric nut tapping machine, including a casing and a plurality of sets of tapping devices arranged side by side, the tapping device including a driving motor a transmission mechanism, a tapping mechanism, a cam push rod feeding mechanism, and a feeding mechanism and a nut clamping mechanism, wherein the tapping mechanism and the nut holding device are oppositely disposed in the casing,
- the tapping mechanism comprises a main shaft and a tap, the main shaft is rotated on the left side wall of the casing, and the tap is fixed on the inner end of the main shaft;
- the transmission mechanism is composed of a first belt transmission mechanism, a second belt transmission mechanism, a gear transmission mechanism and a hanging gear mechanism.
- the first belt transmission mechanism transmits the output power of the driving motor to the hanging gear mechanism through the gear transmission mechanism, and passes the first
- the second belt transmission mechanism transmits the output power of the driving motor to the main shaft;
- the cam push rod feeding mechanism comprises a bracket, a cam mounting seat, a cam and a cam push rod.
- the bracket is fixed on the right side wall of the casing, the cam mounting seat is fixed on the bracket, and the rotating shaft is arranged in the cam mounting seat, and the left end of the rotating shaft is arranged It is matched with the hanging gear mechanism.
- the outer side of the cam mounting seat is provided with a cam.
- the cam has a cylindrical sleeve shape with a right end surface and is fixed to the right end of the rotating shaft.
- the cylinder is fixed on the bracket, and the outer side of the bracket is provided with a movable plate and a cylinder.
- the piston rod is fixed to the movable plate, the movable plate abuts against the slope surface of the cam; the cam push rod slides on the bracket, and the left end of the cam push rod penetrates from the right to the left into the right side wall of the casing and the nut clamping mechanism Fixed, the right end of the cam follower is fixed to the movable plate.
- the gear transmission mechanism includes a front stage worm gear speed reduction mechanism and a rear stage bevel gear direction changing mechanism
- the front stage worm gear speed reduction mechanism includes a meshing worm wheel and a worm
- the rear stage bevel gear direction changing mechanism includes The first and second bevel gears are meshed, the worm is used as the input shaft of the gear transmission mechanism, the second and third pulleys are fixed on the protruding end of the worm, the worm wheel is coaxially arranged with the first bevel gear, and the gear of the second bevel gear
- the shaft acts as the output shaft of the gear train.
- the hanging gear mechanism includes a first hanging tooth, a second hanging tooth and a third hanging tooth which are sequentially engaged, the third hanging tooth is fixed on the output shaft of the gear transmission mechanism, and the second hanging tooth is rotated on the right side of the casing On the side wall, the first hanging tooth is disposed inside the cam mount and fixed to the left end of the rotating shaft.
- the hanging gear mechanism includes a first hanging tooth, a second hanging tooth and a third hanging tooth which are sequentially engaged, the third hanging tooth is fixed on the output shaft of the gear transmission mechanism, and the second hanging tooth is rotated on the right side of the casing On the wall, the first hanging tooth is disposed inside the cam mount and fixed to the left end of the rotating shaft.
- the tapping device is two groups.
- the power output of the driving motor is respectively transmitted to the spindle and the cam push rod feeding mechanism through the transmission mechanism, and the cylinder is used in the cam push rod feeding mechanism to keep the cam push rod and the cam kept in a pressed state to provide the progressive power.
- the nut chuck is driven to move toward the main shaft, and the tapping tapping is performed to realize the equidistant feeding operation.
- the cam push rod mechanism drives the nut clamping mechanism to feed, compared with the cylinder driving method, the machining process is stable and processed. High precision, greatly improved production efficiency, and has good practicability.
- Figure 1 is a schematic structural view of one side of the patent of the present invention.
- Figure 3 is a schematic view showing the internal structure of the patent of the present invention.
- FIG. 4 is a schematic view showing the structure of the discharging mechanism in the patent of the present invention. detailed description
- the high efficiency rear exiting isometric tapping machine comprises a casing 27 and a plurality of sets of tapping devices arranged side by side.
- the tapping device includes a driving motor 26, a transmission mechanism, a tapping mechanism, a feeding mechanism, a feeding mechanism, a discharging mechanism, and a nut clamping mechanism.
- a set of tapping devices can be provided on one machine, or multiple sets of tapping devices can be arranged side by side on one machine.
- the tapping device is provided in two groups, which are arranged in the front-rear direction.
- the high-efficiency rear-out isometric nut tapping machine provided by the invention patent, the nut to be processed is conveyed by the feeding mechanism to the nut clamping mechanism in the casing 27, and is clamped and fixed by the nut clamping mechanism, the tapping mechanism and the nut
- the clamping mechanism is oppositely disposed in the casing 27, and the tapping mechanism is driven by the driving motor 26 to rotate at a high speed through the transmission mechanism, and the driving motor 26 simultaneously drives the nut clamping mechanism to move the nut to the tapping mechanism through the transmission mechanism and the feeding mechanism to complete the nut tapping.
- machined nuts from nut holder The structure is disengaged and output by the discharge mechanism.
- the feeding mechanism includes a mechanical hopper or a vibrating hopper 28 disposed on a top surface of the casing 27, and a lower feeding port 24 corresponding to the nut clamping mechanism is disposed at a lower end of the mechanical hopper or the vibrating hopper 28, and the nut is clamped
- the mechanism includes a nut collet 21 and a pneumatic clamping mechanism. The nut to be processed placed in the mechanical hopper or vibrating hopper 28 falls on the nut collet 21 via the lower strip 24 and is clamped and fixed by a pneumatic clamping mechanism.
- the tapping mechanism is used for tapping the processing nut, and is disposed in the casing 27 opposite to the nut clamping mechanism.
- the tapping mechanism includes a spindle 2 and a tap 22, and the spindle 2 is rotatably disposed on the left side wall of the casing 27, the tap 22 is disposed at the inner end of the main shaft 2, and is fixed by the tap guide sleeve 23.
- the inside of the tap 22 is provided with a linear shaft 25 to improve the tapping precision.
- the transmission mechanism is composed of a first belt transmission mechanism, a second belt transmission mechanism, a gear transmission mechanism and a hanging gear mechanism. among them:
- the first belt transmission mechanism includes a first pulley 32 disposed on an output shaft of the drive motor 26, and a second pulley 5 disposed on the input shaft of the gear transmission, through the first belt transmission mechanism The output power of the drive motor 26 is transmitted to the gear transmission mechanism, and the drive gear transmission mechanism is moved.
- the second belt transmission mechanism includes a third pulley 4 and a fourth pulley 1, the third pulley 4 and the second pulley 5 are coaxially disposed on the input shaft of the gear transmission, and the fourth pulley 1 is disposed on the main shaft 2, through the first
- the second belt transmission mechanism transmits the output power of the drive motor 26 to the spindle 2, and the drive spindle 2 rotates, thereby causing the spindle 2 to drive the tap 22 to rotate at the same time.
- the gear transmission mechanism includes a front stage worm gear speed reduction mechanism and a rear stage bevel gear direction changing mechanism for transmitting the power output of the drive motor 26 to the hanging gear mechanism, and the front stage worm gear speed reduction mechanism includes the meshing worm gear 8 and the worm 10,
- the stepped bevel gear changing mechanism 9 includes first and second bevel gears that mesh with each other, the worm 10 serves as an input shaft of the gear transmission mechanism, and the second and third pulleys are fixed on the extended end of the worm 10, and the worm wheel 8 and the first
- the bevel gear is coaxially disposed, and the gear shaft of the second bevel gear serves as an output shaft of the gear transmission mechanism.
- the hanging gear mechanism includes a first hanging tooth 14, a second hanging tooth 13 and a third hanging tooth 12 that are sequentially engaged, and transmits the power output of the gear transmission mechanism to the cam push rod feeding mechanism.
- the cam follower feed mechanism includes a bracket 18, a cam mount 7, a cam 15, and a cam follower 16.
- the bracket 18 is fixed on the right side wall of the casing 27, the cam mounting seat 7 is fixed on the bottom surface of the bracket 18, and the rotating shaft is disposed in the cam mounting seat 7.
- the first hanging tooth 14 is disposed on the inner side of the cam mounting seat 7, and the rotating shaft The left end is fixed, and the cam 15 is provided on the outer side of the cam mount 7.
- the cam 15 has a cylindrical sleeve shape in which the right end surface is sloped, and is fixed to the right end of the rotating shaft.
- a cylinder 20 is fixed on the bracket 18, and a movable plate 19 is disposed on the outer side of the bracket 18.
- the piston rod of the cylinder 20 is fixed to the movable plate 19.
- the bottom surface of the movable plate 19 is rotated to be provided with a roller 17, and the outer circumferential surface of the roller 17 is abutted. On the slope of the cam 15.
- the third hanging tooth 12 is fixed on the output shaft of the gear transmission mechanism, the second hanging tooth 13 is rotatably disposed on the right side wall of the casing 27, the cam push rod 16 is slidably disposed on the bracket 18, and the left end of the cam push rod 16 is from the right
- the right side wall of the left insertion casing 27 is fixed to the nut collet 21, and the right end of the cam follower 16 is fixed to the movable plate 19.
- the discharge mechanism set is fixed on the outer end of the main shaft 2, and includes a discharge port 29 and a finished bucket 30.
- the nut on the nut collet 21 is tapped through the tap 22, and the processed nut is thrown out from the discharge port 29 into the finished product. Bucket 30.
- the utility model provides a high-efficiency rear-out isometric nut tapping machine which is used as follows: The nut to be processed is placed in the mechanical hopper or vibrating hopper 28 of the feeding mechanism, and the vibration of the mechanical hopper or the vibrating hopper 28 is to be processed. The nut falls onto the nut collet 21 via the strip 24 and is clamped and secured by a pneumatic clamping mechanism.
- the driving motor 26 drives the first moving pulley 5 to rotate by the first belt 31, and then drives the third pulley 1 to rotate by the second belt 3, so that the spindle 2 drives the tap 22 to rotate at a high speed.
- the driving motor 26 drives the worm 10, the worm wheel 8, the first and second bevel gears to decelerate and commutate to the third hanging tooth 12 through the first moving pulley 5, and the third hanging tooth 12 sequentially passes through the second hanging tooth 13 and the first
- the hanging tooth 14 drives the cam 15 to rotate, since the cylinder 17 always makes the lower end of the movable plate 19
- the roller 17 is pressed against the cam 15 to be held in a pressed state, so that the movable plate 19 drives the cam push rod 16 to move to the left, thereby driving the nut collet 21 to feed the spindle 2, and tapping through the tap 22,
- the spindle 2 rotates one turn to complete a pitch
- the cam 15 rotates one turn to complete a nut tapping operation, thereby achieving equidistant feed machining, and the nut product is thrown out through the discharge port 29, and is thrown into the finished bucket 30 to complete the entire nut tapping process.
- the device has the advantages of simple structure, convenient operation, stable processing process, high processing precision, greatly improved production efficiency and good practicability.
- the present invention is not limited to the above-described preferred embodiments, and any person should be aware of the structural changes made under the inspiration of the present invention. Any technical solutions having the same or similar as the present invention fall within the protection of the present invention. Within the scope.
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Abstract
一种高效后出式等距螺母攻牙机，包括机壳（27）以及并排设置的若干组攻牙装置，所述攻牙装置包括驱动电机（26）、传动机构、攻丝机构、凸轮推杆进给机构以及进料机构和螺母夹持机构，所述攻丝机构和所述螺母夹持机构相对设置在所述机壳（27）内，通过传动机构将驱动电机（26）的动力输出分别传送给主轴（2）和凸轮推杆进给机构，凸轮推杆进给机构中使用气缸（17）使凸轮推杆（16）和凸轮（15）一直保持压合状态提供递进动力，从而带动螺母夹头（21）向主轴（2）做递进运动，经丝锥（22）攻丝，实现等距进给作业。该高效后出式等距螺母攻牙机，采用凸轮推杆机构驱动螺母夹持机构进给，同气缸驱动方式相比，加工过程稳定，加工精确度高，大大提高了生产效率。
Description
说 明 书
高效后出式等距螺母攻牙机 技术领域
本发明专利涉及螺母内螺纹加工作业的设备， 具体涉及高效后出式等 距螺母攻牙机。 背景技术
气压式螺母攻牙机是螺母生产厂家普遍采用的一种加工设备， 通常采 用气动式攻牙方式， 即通过气缸直接提供攻牙进给动力， 通过驱动电机提 供旋转动力， 从而完成螺母攻牙作业。
但是， 上述结构形式的等距螺母攻牙机， 由于气动攻牙进给动力的不 稳定性及丝锥在工件接触瞬间会产生一定的冲击力， 很容易造成螺母扩孔 及拉伤， 无法保证其精确度的要求， 因此， 存在报废率高、 故障率高、 生 产效率低下等缺陷。 发明内容
本发明专利所要解决的问题是现有的螺母攻牙机精确度低、 生产效率 低的问题。
为了解决上述技术问题， 本发明专利所采用的技术方案是提供一种高 效后出式等距螺母攻牙机， 包括机壳以及并排设置的若干组攻牙装置， 所 述攻牙装置包括驱动电机、 传动机构、 攻丝机构、 凸轮推杆进给机构以及 进料机构和螺母夹持机构， 所述攻丝机构和所述螺母夹持装置相对设置在 所述机壳内，
所述攻丝机构包括主轴和丝锥， 主轴转动设置在机壳的左侧壁上， 丝 锥固定在主轴的内端；
所述传动机构由第一带传动机构、 第二带传动机构、 齿轮传动机构和 挂齿轮机构组成， 通过第一带传动机构将驱动电机输出动力经齿轮传动机 构传送到挂齿机构， 通过第一、 第二带传动机构将驱动电机输出动力传送 到主轴；
凸轮推杆进给机构包括支架、 凸轮安装座、 凸轮和凸轮推杆， 支架固 定在机壳的右侧壁上， 凸轮安装座固定在支架上， 凸轮安装座内转动设置 有转轴， 转轴的左端与挂齿机构匹配连接， 凸轮安装座的外侧设有凸轮， 凸轮呈右端面为斜坡状的圆柱套筒形， 并与转轴的右端固定， 支架上固定 有气缸， 支架的外侧设有活动板， 气缸的活塞杆与活动板固定， 活动板贴 靠在凸轮的斜坡面上； 凸轮推杆滑动设置支架上， 且凸轮推杆的左端自右 向左穿入机壳的右侧壁与螺母夹持机构固定， 凸轮推杆的右端与活动板固 定。
在上述技术方案中， 所述齿轮传动机构包括前级蜗轮蜗杆减速机构和 后级锥齿轮变向机构，前级蜗轮蜗杆减速机构包括相互啮合的蜗轮和蜗杆， 后级锥齿轮变向机构包括相互啮合的第一、 第二锥齿轮， 蜗杆作为齿轮传 动机构的输入轴， 第二、 第三皮带轮固定在蜗杆的伸出端上， 蜗轮与第一 锥齿轮同轴设置， 第二锥齿轮的齿轮轴作为齿轮传动机构的输出轴。
在上述技术方案中， 所述挂齿轮机构包括依次啮合的第一挂齿、 第二 挂齿和第三挂齿， 第三挂齿固定在齿轮传动机构的输出轴上， 第二挂齿转 动设置在机壳的右侧壁上， 第一挂齿设置在凸轮安装座的内侧， 与转轴的 左端固定。
在上述方案中， 所述挂齿轮机构包括依次啮合的第一挂齿、 第二挂齿 和第三挂齿， 第三挂齿固定在齿轮传动机构的输出轴上， 第二挂齿转动设 置在机壳的右侧壁上， 第一挂齿设置在凸轮安装座的内侧， 与转轴的左端 固定。
在上述技术方案中， 所述攻牙装置为两组。
本发明专利， 通过传动机构将驱动电机的动力输出分别传送给主轴和 凸轮推杆进给机构， 凸轮推杆进给机构中使用气缸使凸轮推杆和凸轮一直 保持压合状态提供递进动力， 从而带动螺母夹头向主轴做递进运动， 经丝 锥攻丝， 实现等距进给作业， 由于采用凸轮推杆机构驱动螺母夹持机构进 给， 同气缸驱动方式相比， 加工过程稳定， 加工精确度高， 大大提高了生 产效率， 具有很好的实用性。 附图说明
图 1为本发明专利一侧的结构示意图；
图 2为本发明专利另一侧的结构示意图；
图 3为本发明专利的内部结构示意图；
图 4为本发明专利中出料机构的结构示意图。 具体实施方式
下面结合说明书附图对本发明专利做出详细的说明。
如图 1、 图 2、 图 3和图 4所示， 本发明专利提供的高效后出式等距螺 母攻牙机包括机壳 27以及并排设置的若干组攻牙装置。 其中， 攻牙装置包 括驱动电机 26、 传动机构、 攻丝机构、 进给机构以及进料机构、 出料机构 和螺母夹持机构。 在实际应用中， 可以在一台机器上设置一组攻牙装置， 也可以在一台机器上并排设置多组攻牙装置。 本实施例中， 攻牙装置共设 置两组， 沿前后方向布置。
本发明专利提供的高效后出式等距螺母攻牙机， 待加工螺母由进料机 构输送至机壳 27内的螺母夹持机构， 并由螺母夹持机构夹持固定， 攻丝机 构与螺母夹持机构相对设置在机壳 27内， 攻丝机构由驱动电机 26通过传 动机构驱动高速转动，驱动电机 26同时通过传动机构和进给机构驱动螺母 夹持机构朝向攻丝机构移动完成螺母攻丝， 加工完成的螺母从螺母夹持机
构中脱开， 并由出料机构输出。
进料机构包括设置在机壳 27顶面上的机械料斗或振动料斗 28，机械料 斗或振动料斗 28的下端出料口处设有与螺母夹持机构相对应的下料条 24， 螺母夹持机构包括螺母夹头 21和气动夹紧机构，放置在机械料斗或振动料 斗 28内的待加工螺母经由下料条 24落在螺母夹头 21上，并由气动夹紧机 构夹紧固定。
攻丝机构用于对待加工螺母进行攻丝， 与螺母夹持机构相对设置在机 壳 27内， 攻丝机构包括主轴 2和丝锥 22， 主轴 2转动设置在机壳 27的左 侧壁上， 丝锥 22设置在主轴 2的内端， 由丝锥导套 23固定， 丝锥 22内侧 设有直线轴 25， 提高攻丝精度。
传动机构由第一带传动机构、 第二带传动机构、 齿轮传动机构和挂齿 轮机构组成。 其中：
第一带传动机构包括第一皮带轮 32和第二皮带轮 5， 第一皮带轮 32 设置在驱动电机 26的输出轴上，第二皮带轮 5设置在齿轮传动机构输入轴 上， 通过第一带传动机构将驱动电机 26的输出动力传送到齿轮传动机构， 驱动齿轮传动机构运动。
第二带传动机构包括第三皮带轮 4和第四皮带轮 1，第三皮带轮 4与第 二皮带轮 5同轴设置在齿轮传动机构输入轴上，第四皮带轮 1设置在主轴 2 上， 通过第一、 第二带传动机构将驱动电机 26的输出动力传送到主轴 2， 驱动主轴 2转动， 进而使主轴 2带动丝锥 22同歩转动。
齿轮传动机构包括前级蜗轮蜗杆减速机构和后级锥齿轮变向机构， 用 于将驱动电机 26的动力输出传递给挂齿机构，前级蜗轮蜗杆减速机构包括 相互啮合的蜗轮 8和蜗杆 10，后级锥齿轮变向机构 9包括相互啮合的第一、 第二锥齿轮， 蜗杆 10作为齿轮传动机构的输入轴， 第二、 第三皮带轮固定 在蜗杆 10的伸出端上， 蜗轮 8与第一锥齿轮同轴设置， 第二锥齿轮的齿轮 轴作为齿轮传动机构的输出轴。
挂齿轮机构包括依次啮合的第一挂齿 14、第二挂齿 13和第三挂齿 12， 将齿轮传动机构的动力输出传递给凸轮推杆进给机构。
凸轮推杆进给机构包括支架 18、凸轮安装座 7、凸轮 15和凸轮推杆 16。 支架 18固定在机壳 27右侧壁上， 凸轮安装座 7固定在支架 18的底面上， 凸轮安装座 7内转动设置有转轴，第一挂齿 14设置在凸轮安装座 7的内侧， 与转轴的左端固定， 凸轮安装座 7的外侧设有凸轮 15， 凸轮 15呈右端面为 斜坡状的圆柱套筒形， 并与转轴的右端固定。支架 18上固定有气缸 20， 支 架 18的外侧设有活动板 19， 气缸 20的活塞杆与活动板 19固定， 活动板 19的底面上转动设有一个滚轮 17，滚轮 17的外圆周面贴靠在凸轮 15的斜 坡面上。
第三挂齿 12固定在齿轮传动机构的输出轴上， 第二挂齿 13转动设置 在机壳 27的右侧壁上， 凸轮推杆 16滑动设置支架 18上， 且凸轮推杆 16 的左端自右向左穿入机壳 27的右侧壁与螺母夹头 21固定， 凸轮推杆 16的 右端与活动板 19固定。
出料机构套装固定在主轴 2的外端，包括出料口 29和成品斗 30，位于 螺母夹头 21上的螺母经过丝锥 22攻丝，， 加工成型的螺母从出料口 29甩 出进入成品斗 30。
本发明专利提供的高效后出式等距螺母攻牙机的使用方法如下： 将待加工螺母放入进料机构的机械料斗或振动料斗 28内， 随机械料斗 或振动料斗 28的振动， 待加工螺母经由下料条 24落在螺母夹头 21上， 并 由气动夹紧机构夹紧固定。
驱动电机 26通过第一皮带 31带动第一动皮带轮 5转动， 再通过第二 皮带 3带动第三皮带轮 1转动， 使得主轴 2带动丝锥 22高速转动。
同时， 驱动电机 26通过第一动皮带轮 5带动蜗杆 10、 蜗轮 8、 第一、 第二锥齿轮减速并换向后输出到第三挂齿 12，第三挂齿 12依次通过第二挂 齿 13和第一挂齿 14带动凸轮 15转动， 由于气缸 17始终使活动板 19下端
的滚轮 17挤靠在凸轮 15上保持于压合状态，于是使得活动板 19带动凸轮 推杆 16向左移动， 从而带动螺母夹头 21向主轴 2方向做进给动作， 通过 丝锥 22攻丝， 主轴 2转动一周完成一个螺距， 凸轮 15转动一周完成一个 螺母攻牙作业， 从而实现等距进给加工， 螺母成品通过出料口 29甩出， 甩 入成品斗 30， 完成整个螺母攻牙过程。
本发明专利， 如需更换螺母规格， 包括螺距及螺母长度（公制、 美制、 英制）， 需要更换凸轮 15、 第三挂齿 12、 和第一挂齿 14即可。
此装置结构简单， 操作方便， 加工过程稳定， 加工精确度高， 大大提 高了生产效率， 具有很好的实用性。 本发明专利不局限于上述最佳实施方式， 任何人应该得知在本发明专 利的启示下作出的结构变化， 凡是与本发明专利具有相同或相近的技术方 案， 均落入本发明专利的保护范围之内。
Claims
1、 高效后出式等距螺母攻牙机， 包括机壳以及并排设置的若干组攻牙 装置， 所述攻牙装置包括驱动电机、 传动机构、 攻丝机构、 凸轮推杆进给 机构以及进料机构和螺母夹持机构， 所述攻丝机构和所述螺母夹持装置相 对设置在所述机壳内， 其特征在于，
所述攻丝机构包括主轴和丝锥， 主轴转动设置在机壳的左侧壁上， 丝 锥固定在主轴的内端；
所述传动机构由第一带传动机构、 第二带传动机构、 齿轮传动机构和 挂齿轮机构组成， 通过第一带传动机构将驱动电机输出动力经齿轮传动机 构传送到挂齿机构， 通过第一、 第二带传动机构将驱动电机输出动力传送 到主轴；
凸轮推杆进给机构包括支架、 凸轮安装座、 凸轮和凸轮推杆， 支架固 定在机壳的右侧壁上， 凸轮安装座固定在支架上， 凸轮安装座内转动设置 有转轴， 转轴的左端与挂齿机构匹配连接， 凸轮安装座的外侧设有凸轮， 凸轮呈右端面为斜坡状的圆柱套筒形， 并与转轴的右端固定， 支架上固定 有气缸， 支架的外侧设有活动板， 气缸的活塞杆与活动板固定， 活动板贴 靠在凸轮的斜坡面上； 凸轮推杆滑动设置支架上， 且凸轮推杆的左端自右 向左穿入机壳的右侧壁与螺母夹持机构固定， 凸轮推杆的右端与活动板固 定。
2、 如权利要求 1所述的高效后出式等距螺母攻牙机， 其特征在于， 所 述齿轮传动机构包括前级蜗轮蜗杆减速机构和后级锥齿轮变向机构， 前级 蜗轮蜗杆减速机构包括相互啮合的蜗轮和蜗杆， 后级锥齿轮变向机构包括 相互啮合的第一、 第二锥齿轮， 蜗杆作为齿轮传动机构的输入轴， 第二、 第三皮带轮固定在蜗杆的伸出端上， 蜗轮与第一锥齿轮同轴设置， 第二锥 齿轮的齿轮轴作为齿轮传动机构的输出轴。
3、 如权利要求 2所述的高效后出式等距螺母攻牙机， 其特征在于， 所
述挂齿轮机构包括依次啮合的第一挂齿、 第二挂齿和第三挂齿， 第三挂齿 固定在齿轮传动机构的输出轴上， 第二挂齿转动设置在机壳的右侧壁上， 第一挂齿设置在凸轮安装座的内侧， 与转轴的左端固定。
4、 如权利要求 1所述的高效后出式等距螺母攻牙机， 其特征在于， 所 述活动板的底面上转动设有一个滚轮， 所述滚轮的外圆周面贴靠在所述凸 轮的斜坡面上。
5、 如权利要求 1所述的高效后出式等距螺母攻牙机， 其特征在于， 所 述攻牙装置为两组。
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