WO2010028540A1 - 针灸针自动绕柄机的工件夹持装置 - Google Patents

针灸针自动绕柄机的工件夹持装置 Download PDF

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Publication number
WO2010028540A1
WO2010028540A1 PCT/CN2009/000935 CN2009000935W WO2010028540A1 WO 2010028540 A1 WO2010028540 A1 WO 2010028540A1 CN 2009000935 W CN2009000935 W CN 2009000935W WO 2010028540 A1 WO2010028540 A1 WO 2010028540A1
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WO
WIPO (PCT)
Prior art keywords
pressing
rod
workpiece
working
plate
Prior art date
Application number
PCT/CN2009/000935
Other languages
English (en)
French (fr)
Inventor
曹炀
陈顺涌
陈亮
Original Assignee
苏州华佗医疗器械有限公司
吴江市云龙医疗器械有限公司
吴江市神力医疗卫生材料有限公司
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Application filed by 苏州华佗医疗器械有限公司, 吴江市云龙医疗器械有限公司, 吴江市神力医疗卫生材料有限公司 filed Critical 苏州华佗医疗器械有限公司
Publication of WO2010028540A1 publication Critical patent/WO2010028540A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H39/00—Devices for locating or stimulating specific reflex points of the body for physical therapy, e.g. acupuncture
    • A61H39/08—Devices for applying needles to such points, i.e. for acupuncture ; Acupuncture needles or accessories therefor
    • A61H39/086—Acupuncture needles

Definitions

  • the present invention relates to an apparatus for processing acupuncture needles around a handle, and more particularly to a workpiece holding device on the apparatus.
  • the workpiece holding device functions to hold the workpiece during production and to release the workpiece when the production is completed.
  • the acupuncture needle of the shank structure is configured as follows: the tail of the needle body is wound by a wire in a spiral shape to form a shank, a wire loop formed by a wire at the tail of the shank, the ring plane of the wire ring and the shank The end faces are perpendicular.
  • the acupuncture needles around the shank were made by hand.
  • the production process was as follows: First, the length of the wire required to circumscribe the handle was set by the worker on a wire according to experience or ruler. The middle part is wound around a core rod to form a wire loop three times; then, the needle body is placed in the plane direction of the wire loop, and the wire on both sides of the wire ring is manually wound around the tail of the needle body, and the needle body is Positioning; Then, the worker keeps and pulls the wire on both sides of the wire ring to open on both sides, and the other hand will contact the belt driven by the motor through the pulley and the mandrel through the driving wheel to make the mandrel and the wire ring And the needle body rotates at a high speed, the wire on both sides of the wire ring is circulated around the needle body to form a winding handle; then the ruler is used to check whether the length of the shank is up to the specification, and then the mandrel is taken out; finally, when hundreds of
  • the outer circumference of the turntable corresponds to the above five stations to set the station fixture.
  • the workpiece holder functions to clamp the workpiece, and the specific configuration thereof is not described in detail in the patent technical solution.
  • the acupuncture needle is wound around the handle. (ie, around the wire loop station) How to position and hold firmly, how to automatically and quickly release when unloading (ie, the loading station), the performance of the workpiece fixture can directly determine the performance of the entire device. It is the core component of the entire device. Therefore, the Applicant has attempted to further study the workpiece fixture portion.
  • the object of the present invention is to provide a workpiece clamping device for acupuncture needle automatic winding handle machine with ingenious and flexible mechanism, thereby improving the performance of the acupuncture needle winding processing device, and making the processing of the winding handle smoother and faster.
  • a workpiece clamping device for an acupuncture needle automatic winding handle machine which is composed of a plurality of workpiece clamps, a clamp ejector rod and a stripping ejector rod, wherein
  • the workpiece holder is uniformly disposed in the circumferential direction of the turntable of the handle machine, and moves along the turntable between the stations
  • the workpiece clamps include a seat body, a pressing member and a coil spring;
  • the seat body is provided with an upward working a through hole is formed in a middle portion of the working surface, and a core rod is protruded upward from an outer edge of the working surface;
  • the pressing member is composed of a small pressing plate and a central rod vertically disposed at one end of the small pressing plate, the pressing material
  • the central rod is disposed in the through hole, and the lower portion of the central rod protrudes as a first pressing portion;
  • the corresponding small rod on the small pressing plate is provided with a fitting hole, and the small
  • the small pressure plate In the loosening working position, the small pressure plate is embedded in the accommodating groove; the bottom of the center rod has a positioning rod extending in the radial direction, and the seat body correspondingly
  • the position of the positioning rod is provided with a blocking limit portion, and the positioning rod cooperates with the blocking limiting portion to position the pressing member; and the top end of the clamping rod corresponds to the first pressing force
  • the part is provided with a pressing surface, and the clamping rod is vertically moved in the up-and-down direction, and the pressing surface is pressed against the first pressing portion to switch the pressing member of the workpiece holder from the releasing working position to the clamping working position.
  • the stripping ejector is disposed at a stripping station corresponding to the workpiece fixture on the working station, and the top end of the stripping ejector is provided with a pressing surface corresponding to the first pressing portion, and the outer circumference of the pressing surface corresponds to the
  • the positioning rod is provided with a working inclined surface, the lifting top rod is vertically moved in the vertical direction, and the working inclined surface of the stripping top rod is matched with the positioning rod, and the pressing surface of the stripping top rod is pressed against the first pressing portion to make the pressure
  • the small pressure plate of the material member rotates to or exceeds the position of the receiving recessed groove against the spring torsion, and the pressing member is switched from the clamping working position to the releasing position. work location.
  • the “the workpiece clamp is uniformly disposed in the circumferential direction of the turntable of the handle machine, and the movement of the turntable is performed between the stations”, the number of the work stations, which is processed on the handle machine.
  • the process determines that the station can be three, four, five or even more.
  • wire feeding and winding The wire loop station "is the station that starts to wind up. At this station, the wire loop is to be wound. After the wire ring is wound, the workpiece clamp needs to hold the wire ring; the "disconnecting station” is At the end, the workpiece is removed. At this station, the workpiece holder is used to loosen the workpiece and then the workpiece is removed.
  • a lifting member is embedded between the seat body and the pressing member, the lifting The material member is composed of a lifting plate and a sleeve vertically disposed downwardly from a middle portion of the lifting plate, wherein a central hole opening corresponding to the sleeve of the middle portion of the lifting plate constitutes the through hole;
  • the bottom of the sleeve protrudes downwardly as a second pressing portion, and the lifting plate is stacked on the seat body, and one end of the mandrel is fixed on the seat body, and the other end is lifted by the lifting plate.
  • the plated surface of the lifting plate is used as the working surface, and the pressing member is inserted through the central rod into the through hole of the lifting member, and the first pressing portion protrudes from the sleeve of the lifting member
  • the top pressing surface of the stripping ejector is directly pressed against the second pressing portion, or is indirectly pressed against the second pressing portion via the first pressing portion. That is, the workpiece fixture is at the stripping station, and the lifting member can be lifted up by the stripping ejector rod, that is, the entire working surface is lifted, so that the wire loop of the workpiece is taken up out of the mandrel, and then the picking rod is matched, which is convenient. Remove the workpiece.
  • the bottom of the center rod of the workpiece holder is provided with a retaining ring, one end of the spring is fixed on the top surface of the retaining ring, and the other end is fixed on the bottom surface of the seat body, and the top surface of the retaining ring is The second pressing portion is pressed against. That is, when working, the take-off ejector moves upward to press against the first pressing portion, so that the pressing member is lifted first, and then the retaining ring is moved up by 4 degrees on the second pressing portion, so that the lifting member is also attached. lift.
  • the present invention has the following advantages over the prior art:
  • the invention has the advantages of simple structure, ingenious design and flexible action.
  • the performance of the acupuncture needle-wound processing device can be greatly improved, and the processing of the winding handle is smoother and faster.
  • Figure 1 is a partial cross-sectional front elevational view of the workpiece holder of the present invention, in which the pressing member is in a clamping working position;
  • Figure 2 is a top plan view of Figure 1;
  • Figure 3 is a schematic view of the operation process of the present invention for switching from the loosening working position to the clamping working position at the wire feeding and winding ring working position;
  • Figure 4 is a schematic view showing the action process of the present invention for switching from the loose working position to the clamping working position at the wire feeding and winding ring working position;
  • Figure 5 is a schematic view 3 of the operation process of the present invention for switching from the working position to the clamping working position at the wire feeding and winding ring working position;
  • Figure 6 is a schematic view of the operation process of the present invention for switching from the clamping working position to the releasing working position at the stripping station;
  • Figure 7 is a schematic view 2 of the operation process of the present invention for switching from the clamping working position to the releasing working position at the stripping station;
  • Figure 8 is a schematic view 3 of the operation process of the present invention for switching from the clamping working position to the releasing working position at the stripping station;
  • Figure 9 is a schematic view showing the arrangement of the opposite carousel of the present invention.
  • a workpiece holding device for an automatic acupuncture needle winding machine is composed of five (or three, four or more) workpieces.
  • the jig 1, a ejector pin 2 and a ejector pin 3 are matched, and the workpiece jig 1 is evenly arranged in the circumferential direction of the turntable 4 of the shank machine, and moves with the turntable 4 between the stations.
  • each of the workpiece holders 1 is mainly composed of a seat body 5, a lifting member 6, a pressing member 7, a coil spring 8 and a retaining ring 9;
  • the lifting member is inserted through the sleeve 1 1 on the seat body 5, the bottom of the sleeve 11 protrudes downward as a second pressing portion 13, and the lifting plate 10 is stacked on the seat body 5;
  • There is a core rod 14 which is fixedly positioned on the seat body 5 at one end, and the other end penetrates vertically through the outer edge of the lifting plate 6 (ie, the outer edge of the working surface 15);
  • the pressing member 7 is formed by the small pressure plate 16 And a central rod 17 disposed perpendicularly downward
  • the lower portion of the center rod 17 protrudes as the first pressing portion 18; the corresponding core rod 14 of the small pressure plate 16 defines an insertion hole 19, and the core rod 14 is opened.
  • the top end is fitted into the insertion hole 19; the working surface 15 is provided with a matching receiving recess 20 at a projection position corresponding to the deflection of the small pressure plate 16 with the center of the through hole 12 as a center of rotation; the retaining ring 9 is fixedly sleeved on the On the bottom of the center rod 17, the coil spring 8 is sleeved outside the sleeve 1 1 , one end is fixed on the top surface of the retaining ring 9 , and the other end is fixed on the bottom surface of the seat body 5 to act on the retaining ring 9 (ie, the center rod) 17) Between the seat body 5 and the seat body 5, it is both a compression spring and a torsion spring.
  • the elastic force in the longitudinal direction of the coil spring 8 forces the small pressure plate 16 of the pressing member 7 to move downward, and the torsion force of the coil spring 8 forces the small pressure plate 16 Rotating in the direction of the mandrel 14 by the receiving recess 20;
  • the pressing member 7 has two working positions for clamping and loosening, and the insertion hole 19 of the small pressing plate 16 and the top end of the mandrel 14 are embedded in the clamping working position. In the loosening working position, the small pressure plate 16 is embedded in the receiving recess 20 for positioning.
  • the retaining ring 9 (that is, the bottom of the center rod 17) has a positioning rod 21 extending outwardly in the radial direction, and a position of the positioning body 21 on the seat body 5 corresponding to the pressing member 7 at the clamping working position is provided.
  • Blocking the limiting portion here specifically, a limiting post 22 extending downward from the bottom surface of the base body
  • the positioning rod 21 and the blocking limiting portion ie, the limiting column 22
  • the clamp ejector 2 is disposed at the wire feeding and winding ring station corresponding to the workpiece clamp 1 at the station, and the top end of the clamp ejector 2 corresponds to the workpiece clamp 1
  • a pressing portion 18 is provided with a pressing surface 23, and the clamping ejector 2 is vertically moved in the up and down direction, and the pressing surface 23 is pressed against the first pressing portion 18, so that the pressing member 7 of the workpiece holder 1 is Release the working position to switch to the clamping working position.
  • the take-off ejector pin 3 is disposed at the take-off station corresponding to the workpiece clamp 1 at the work station, and the top end of the take-off ejector pin 3 corresponds to the first
  • a pressing portion 18 is provided with a pressing surface 24, and a positioning inclined surface 25 is disposed on the outer circumference of the pressing surface 24 corresponding to the positioning rod 21, and the discharging top rod 3 is vertically moved in the vertical direction, and the topping rod 3 is removed.
  • the action ramp 25 cooperates with the positioning rod 21, and the pressing surface 24 of the stripping rod 3 is pressed against the first pressing portion 18, and the first pressing portion 18 is topped on the pressing surface 24 of the stripping rod 3.
  • the retaining ring 9 is also moved upward, so that the top surface of the retaining ring 9 is pressed against the second pressing portion 13, the lifting member 6 is lifted up, and the small pressing plate 16 of the pressing member 7 is rotated against the spring torque. To or beyond the position of the receiving recess 20, the pressing member 7 is switched from the clamping working position to the released working position.
  • the operation process of the present embodiment for switching from the release working position to the clamping working position at the wire feeding and winding ring station is as shown in FIG. 3 - FIG.
  • the small pressure plate 16 of the pressing member 7 is embedded in the receiving recess 20 to be released from the working state.
  • the wire ring 26 can be wound around the core rod 14 by wire; then, the clamping rod 2, as shown by the arrow, upwardly presses against the first pressing portion 18, so that the pressing member 7
  • the upper pressing plate 16 of the pressing member 7 is disengaged from the receiving recess 20, and the pressing member 7 is rotated toward the core rod 14 by the torsion of the coil spring 8 until the positioning rod 21 is stopped on the limiting post 22,
  • the transition state is as shown in FIG.
  • the clamp ejector 2 is moved down and reset, the pressing member 7 falls under the elastic force in the longitudinal direction of the coil spring 8, and the small pressure plate 16 is placed on the core rod 14 with the insertion hole 19 just On the upper end, the wire ring 26 is pressed against the workpiece, that is, the wire ring 26 is firmly positioned, as shown in FIG.
  • the workpiece holder 1 is carried out in one step with the workpiece (i.e., the wire loop 26) to the next station.
  • This embodiment is switched from the clamping working position to the releasing working position at the stripping station, as shown in Figures 6-8.
  • the small pressure plate 16 is pressed over the upper end of the mandrel 14 with the insertion hole 19 to cover the wire ring 26.
  • the wire ring 26 has been fitted with the needle body and wound around the handle, which has been formed into a complete shape.
  • the acupuncture needle 27; then, the stripping ejector rod 3 is moved upward as indicated by the arrow, so that the action bevel 25 presses against the positioning rod 21, and the pressing surface 24 also presses against the first pressing portion 18, and the pressing member 7 is lifted up.
  • the positioning rod 21 rotates along the action inclined surface 25, so that the small pressure plate 16 of the pressing member 7 rotates to or exceeds the position of the receiving recess 20 against the spring torsion, and at the same time, after the pressing member 7 is moved to a certain position, the second top is pressed.
  • the pressing portion 13 moves the lifting member 6 upward also, so that the wire ring 26 of the acupuncture needle 27 (i.e., the workpiece) is taken out of the top end of the mandrel 14, and the transition state is as shown in Fig.
  • the structure of the embodiment is simple, the mechanism design is ingenious, and the action is flexible.
  • the performance of the acupuncture needle-handle processing equipment can be greatly improved, and the processing process of the winding handle is smoother and faster.

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Description

针灸针自动绕柄机的工件夹持装置 技术领域
本发明涉及一种加工针灸针绕柄的设备， 具体涉及该设备上的工件夹持 装置。该工件夹持装置的作用是在制作时夹持住工件，制作完成时松开工件。 背景技术
现有针灸针的针柄一般有两种： 一种是绕柄结构， 即用金属丝缠绕在针 体上部形成针柄； 另一种是管柄结构， 即在针体上部套上细金属管形成。 绕 柄结构的针灸针， 结构为： 针体的尾部以金属丝按螺旋状进行缠绕一定长度 形成绕柄， 在绕柄的尾部由金属丝形成的一丝环， 该丝环的环平面与绕柄的 端面相垂直。
早先， 绕柄结构的针灸针的制作方式都为手工制作， 制作过程是： 先由 工人在一金属丝上按经验或用尺测量预留出一绕柄所需金属丝的长度， 将金 属丝的中部绕于一芯棒上三圈形成丝环； 接着， 在丝环所处平面方向上放置 上针体， 将丝环两侧的金属丝手工绕几圈在针体的尾部， 将针体定位； 然后， 工人一手保持和拉住丝环两侧的金属丝向两侧张开， 另一手将在丝环及芯棒 通过一带动轮与由电机带动的皮带接触， 使芯棒、 丝环及针体高速旋转， 丝 环两侧的金属丝即顺应螺旋环绕于针体上， 形成绕柄； 然后用尺检验绕柄的 长度是否达规格， 再取出芯棒； 最后当制作好几百根后， 将它们之间的金属 丝一一剪断， 再一一打磨修整绕柄处金属丝的端部， 使之光滑无毛刺， 这样 才完成了整个绕柄制作的工序。 显而易见， 这种手工制作方式落后， 生产效 率低、 人工成本高， 一名熟练工 8小时产量最多为 1000根左可； 针体及金 属丝直径较细， 一般才 0.14mm ~ 0.45mm, 在手工操作中， 难于操作， 并易 剌伤手。
众所周知， 若能以机械代替人工制作绕柄结构的针灸针， 必可大大提高 生产效率， 质量上也更能保证。 本案申请人在这方面进行了多年的研究和开 发， 已拥有了一专利权： 见中国专利公告于 2006年 10月 25 日公开了 《用 于完成针炙针绕柄的加工设备》， 公开号为 CN2829725的实用新型专利。 该 专利的技术方案是从整体上公开了该针灸针绕柄加工设备， 该设备是由转盘 的圆心为中心， 在转盘周向上按序等分排布送丝及绕丝环工位、 送针及装头 工位、 绕柄工位、 修磨工位和下料工位共五个工位， 转盘外周上分别对应上 述五个工位设置工位夹具。 所述工件夹具即起到夹持工件的作用， 其具体构 造在该专利技术方案中未作详细描述。 而实际实施中， 针灸针绕柄在起绕时 (即绕丝环工位上）如何定位牢固地夹持住， 在下料时 （即下料工位上） 又 如何自动快速地松开， 工件夹具的性能可以说直接决定了整个设备的性能， 是整个设备的核心部件。 因此， 本申请人尝试对工件夹具部分作进一步深入 研究。
发明内容
本发明目的是提供一种机构巧妙、 动作灵活的针灸针自动绕柄机的工件 夹持装置，进而提高针灸针绕柄加工设备的性能，使绕柄的加工过程更流畅、 速度更快。
为达到上述目的， 本发明采用的技术方案是： 一种针灸针自动绕柄机的 工件夹持装置， 由多个工件夹具、 一夹料顶杆以及一脱料顶杆相配合构成， 所述工件夹具在绕柄机的转盘周向上均布设置， 且随转盘在各工位间运动； 所述各工件夹具包括座体、 压料件以及螺旋弹簧； 所述座体上设有一向 上的工作面，该工作面中部向下开设贯穿孔， 工作面的外沿向上凸设一芯棒； 所述压料件由小压板和该小压板一端向下垂直设置的中心杆构成， 所述压料 件以中心杆穿设于贯穿孔中， 中心杆下部伸出作为第一顶压部； 所述小压板 上对应芯棒开设有嵌孔， 小压板以嵌孔套在芯棒的顶端上， 所述工作面上对 应小压板以贯穿孔中心为旋转中心偏转的投影位置开设匹配的容置嵌槽； 所 述螺旋弹簧套设在套管外部， 作用于所述中心杆和座体之间， 其长度方向的 弹力迫使压料件的小压板向下运动， 扭力迫使小压板由容置嵌槽向芯棒的方 向转动； 所述压料件具有夹持和松开两个工作位置， 在夹持工作位置上小压 板的嵌孔与芯棒顶端嵌套配合， 在松开工作位置上小压板嵌于容置嵌槽内定 位； 中心杆的底部在径向上伸设有一定位杆， 而座体上对应压料件处在夹持 工作位置上时定位杆的位置设有一阻挡限位部， 定位杆与阻挡限位部相配合 对压料件定位； 置， 夹料顶杆的顶端对应第一顶压部设有一顶压面， 夹料顶杆作上下方向的 垂直运动， 该顶压面与第一顶压部抵压配合， 使工件夹具的压料件从松开工 作位置转换至夹持工作位置；
所述脱料顶杆在脱料工位上对应该工位上的工件夹具设置， 脱料顶杆的 顶端对应第一顶压部设有一顶压面， 且在该顶压面外周对应所述定位杆设有 一段作用斜面， 脱料顶杆作上下方向垂直运动， 脱料顶杆的作用斜面与定位 杆配合， 脱料顶杆的顶压面与第一顶压部抵压配合， 使压料件的小压板克服 弹簧扭力旋转至或超过容置嵌槽的位置， 压料件从夹持工作位置转换至松开 工作位置。
上述技术方案中的有关内容解释如下：
1、 上述方案中， 所述 "上" "下" 方向是按工件夹具的夹持和脱料使用 状态， 也就是如附图 1 所示状态定义的， 即附图 1 中的上方即为 "上"， 下 方即为 "下"。
2、 上述方案中， 所述 "所述工件夹具在绕柄机的转盘周向上均布设置， 且随转盘在各工位间运动" 中， 所述工位的多少， 这是绕柄机上加工工序决 定的的， 工位可以是三个、 四个、 五个甚至更多， 这些工位中肯定有一送丝 及绕丝环工位和一脱料工位， 这里所述 "送丝及绕丝环工位" 即开始起绕的 工位， 在这工位上要做的是起绕丝环， 绕好丝环后工件夹具需夹持住丝环； 所述 "脱料工位" 即结束时取下工件的工位， 在这工位上要做的是工件夹具 松开工件， 然后取下工件。
3、 上述方案， 实现了工件的夹持和松开， 但为了便于自动脱下工件， 还有以下进一步较佳方案： 所述座体与压料件间嵌设有一抬料件， 所述抬料 件由抬料板和该抬料板中部向下垂直设置的一套管构成， 所述抬料板中部对 应套管的中心孔开孔构成所述贯穿孔； 所述抬料件以套管穿设于座体上， 套 管底部向下伸出作为第二顶压部， 且抬料板叠置于座体上， 所述芯棒一端固 接于座体上， 另一端经抬料板向上穿出， 抬料板的板面作为所述工作面， 所 述压料件以中心杆穿设于抬料件的贯穿孔中， 所述第一顶压部伸出于抬料件 的套管下端口外； 所述脱料顶杆的顶压面直接与第二顶压部抵压配合， 或者 经第一顶压部传递动力间接与第二顶压部抵压配合。 即工件夹具在脱料工位 上， 可由脱料顶杆将抬料件顶起， 即整个工作面上抬， 使工件的丝环向上脱 出芯棒， 再配合上取料杆， 即可方便地取下工件。
上述方案，再进一步： 所述各工件夹具的中心杆底部固定套设有一挡环， 弹簧的一端固定在挡环顶面上， 另一端固定在座体的底面上， 所述挡环的顶 面与第二顶压部抵压配合。 即工作时， 脱料顶杆向上运动抵压第一顶压部使 压料件先上抬， 然后挡环随之上移 4氏在第二顶压部上，使抬料件也随之上抬。
由于上述技术方案运用， 本发明与现有技术相比具有下列优点:
本发明结构简单， 机构设计巧妙， 动作灵活， 通过运用本发明可大幅提 高针灸针绕柄加工设备的性能， 使绕柄的加工过程更流畅、 速度更快。
附图说明
附图 1 为本发明工件夹具的局部剖主视示意图， 图中压料件处在夹持工 作位置； 附图 2为附图 1的俯视示意图；
附图 3 为本发明在送丝及绕丝环工位上从松开工作位置转换至夹持工作 位置的动作过程示意图一；
附图 4 为本发明在送丝及绕丝环工位上从松开工作位置转换至夹持工作 位置的动作过程示意图二；
附图 5 为本发明在送丝及绕丝环工位上从；^开工作位置转换至夹持工作 位置的动作过程示意图三；
附图 6 为本发明在脱料工位上从夹持工作位置转换至松开工作位置的动 作过程示意图一；
附图 7 为本发明在脱料工位上从夹持工作位置转换至松开工作位置的动 作过程示意图二；
附图 8 为本发明在脱料工位上从夹持工作位置转换至松开工作位置的动 作过程示意图三；
附图 9为本发明相对转盘的排布示意图。
以上附图中： 1、 工件夹具； 2、 夹料顶杆； 3、 脱料顶杆； 4、 转盘； 5、 座体； 6、 抬料件； 7、 压料件； 8、 螺旋弹簧； 9、 挡环； 10、 抬料板； 11、 套管； 12、 贯穿孔； 13、 第二顶压部； 14、 芯棒； 15、 工作面； 16、 小压板； 17、 中心杆； 18、 第一顶压部； 19、 嵌孔； 20、 容置嵌槽； 21、 定位杆； 22、 限位柱； 23、 顶压面； 24、 顶压面； 25、 作用斜面； 26、 丝环； 27、 针灸针。 具体实施方式
下面结合附图及实施例对本发明作进一步描述：
实施例： 参见附图 1 ~ 9所示， 一种针灸针自动绕柄机的工件夹持装置， 见附图 9所示， 由五个 （也可以是三个、 四个甚至更多） 工件夹具 1、 一夹 料顶杆 2以及一脱料顶杆 3相配合构成， 所述工件夹具 1在绕柄机的转盘 4 周向上均布设置， 且随转盘 4在各工位间运动。
参见附图 1、 附图 2所示， 所述各工件夹具 1主要由座体 5、 抬料件 6、 压料件 7、 螺旋弹簧 8以及挡环 9组成； 所述抬料件 6由抬料板 10和该抬料 板 10中部向下垂直设置的一套管 1 1构成， 抬料板 6的板面作为工作面 15， 该工作面 15中部对应套管 11的中心孔开孔构成一贯穿孔 12; 所述抬料件以 套管 1 1穿设于座体 5上， 套管 11底部向下伸出作为第二顶压部 13 , 且抬料 板 10叠置于座体 5上； 有一芯棒 14， 一端固接定位于座体 5上， 另一端贯 穿过抬料板 6的外沿 （即工作面 15的外沿） 垂直向上穿出； 所述压料件 7 由小压板 16和该小压板 16—端向下垂直设置的一中心杆 17构成， 所述压 料件 7以中心杆 17穿设于贯穿孔 12中， 中心杆 17下部伸出作为第一顶压 部 18; 所述小压板 16上对应芯棒 14开设有嵌孔 19， 所述芯棒 14顶端与该 嵌孔 19嵌入配合； 所述工作面 15上以贯穿孔 12中心为旋转中心对应小压 板 16偏转的投影位置开设有匹配的容置嵌槽 20; 所述挡环 9固定套设在中 心杆 17的底部上， 所述螺旋弹簧 8套设在套管 1 1外部， 一端固定在挡环 9 顶面上， 另一端固定在座体 5的底面上， 作用在挡环 9 (即中心杆 17 )和座 体 5之间， 它既是压簧又是扭簧， 该螺旋弹簧 8的长度方向的弹力迫使压料 件 7的小压板 16向下运动， 该螺旋弹簧 8的扭力迫使小压板 16由容置嵌槽 20向芯棒 14的方向转动； 所述压料件 7具有夹持和松开两个工作位置， 在 夹持工作位置上小压板 16的嵌孔 19与芯棒 14顶端嵌套配合， 在松开工作 位置上小压板 16嵌于容置嵌槽 20内定位。 所述挡环 9 (也就是中心杆 17的 底部）在径向上向外伸设一定位杆 21 , 而座体 5上对应压料件 7处在夹持工 作位置上定位杆 21 的位置设有一阻挡限位部 （这里具体是一从座体底面向 下伸设的限位柱 22 ), 定位杆 21 与阻挡限位部 （即限位柱 22 ) 配合构成压 料件 7夹持工作位置的定位结构。
参见附图 1 ~ 5所示， 所述夹料顶杆 2在送丝及绕丝环工位上对应该工 位上的工件夹具 1设置，夹料顶杆 2的顶端对应工件夹具 1的第一顶压部 18 设有一顶压面 23 , 夹料顶杆 2作上下方向的垂直运动， 该顶压面 23与第一 顶压部 18抵压配合， 使工件夹具 1的压料件 7从松开工作位置转换至夹持 工作位置。
参见附图 1、 附图 2、 附图 6 ~ 8所示， 所述脱料顶杆 3在脱料工位上对 应该工位上的工件夹具 1设置， 脱料顶杆 3的顶端对应第一顶压部 18设有 一顶压面 24， 且在该顶压面 24外周对应所述定位杆 21设有一段作用斜面 25 , 脱料顶杆 3作上下方向垂直运动， 脱料顶杆 3的作用斜面 25与定位杆 21配合， 脱料顶杆 3的顶压面 24与第一顶压部 18抵压配合， 在脱料顶杆 3 的顶压面 24将第一顶压部 18向上顶起后， 挡环 9也随之上移， 从而挡环 9 顶面与第二顶压部 13抵压配合， 将抬料件 6上抬， 且压料件 7的小压板 16 克服弹簧扭力旋转至或超过容置嵌槽 20的位置， '压料件 7从夹持工作位置 转换至松开工作位置。
具体， 本实施例在送丝及绕丝环工位上从松开工作位置转换至夹持工作 位置的动作过程， 如附图 3 -附图 5所示。 附图 3中， 压料件 7的小压板 16 嵌于容置嵌槽 20内成松开工作状态， 此时可在芯棒 14上以金属丝缠绕出丝 环 26; 然后， 夹料顶杆 2如箭头所示上移抵压第一顶压部 18, 使压料件 7 上抬， 压料件 7的小压板 16脱离容置嵌槽 20, 压料件 7即在螺旋弹簧 8扭 力的作用下向芯棒 14侧转动直至定位杆 21 靠在限位柱 22上停止， 此过渡 状态如附图 4所示； 最后， 夹料顶杆 2下移复位， 压料件 7在螺旋弹簧 8长 度方向上弹力作用下下落， 小压板 16正好以嵌孔 19套在芯棒 14的上端上， 从而压盖住丝环 26， 将工件 （即丝环 26 ) 牢牢定位柱， 如附图 5所示。 接 着， 工件夹具 1即带着工件 （即丝环 26 ) 至下一工位进行一步制作。
本实施例在脱料工位上从夹持工作位置转换至松开工作位置的， 如附图 6〜附图 8所示。 附图 6中， 小压板 16正好以嵌孔 19套在芯棒 14的上端上 压盖住丝环 26, 丝环 26上已经装上针体并绕制出了绕柄， 已成形为一完整 的针灸针 27; 然后， 脱料顶杆 3如箭头所示上移， 使作用斜面 25抵压定位 杆 21， 顶压面 24也抵压第一顶压部 18, 压料件 7上抬且定位杆 21沿作用 斜面 25转动， 使压料件 7的小压板 16克服弹簧扭力旋转至或超过容置嵌槽 20的位置， 同时在压料件 7上移一定位置后经抵压第二顶压部 13， 使抬料 件 6也上移， 使针灸针 27 (即工件）的丝环 26脱出芯棒 14的顶端， 此过渡 状态如附图 Ί所示， 此时以机械摆臂或人工取针灸针 27 (即工件）即可； 最 后， 脱料顶杆 3下移复位， 压料件 7在螺旋弹簧 8长度方向上弹力作用下下 落正好嵌入容置嵌槽 20中构成^开状态， 如附图 8所示。
本实施例结构简单， 机构设计巧妙， 动作灵活， 通过运用本发明可大幅 提高针灸针绕柄加工设备的性能， 使绕柄的加工过程更流畅、 速度更快。
上述实施例只为说明本发明的技术构思及特点， 其目的在于让熟悉此项 技术的人士能够了解本发明的内容并据以实施， 并不能以此限制本发明的保 护范围。 凡根据本发明精神实质所作的等效变化或修饰， 都应涵盖在本发明 的保护范围之内。

Claims

权 利 要 求 书
1、 一种针灸针自动绕柄机的工件夹持装置， 由多个工件夹具、 一夹料顶 杆以及一脱料顶杆相配合构成， 所述工件夹具在绕柄机的转盘周向上均布设 置， 且随转盘在各工位间运动； 其特征在于：
所述各工件夹具包括座体、压料件以及螺旋弹簧； 所述座体上设有一向上 的工作面， 该工作面中部向下开设贯穿孔， 工作面的外沿向上凸设一芯棒； 所 述压料件由小压板和该小压板一端向下垂直设置的中心杆构成，所述压料件以 中心杆穿设于贯穿孔中， 中心杆下部伸出作为第一顶压部； 所述小压板上对应 芯棒开设有嵌孔， 小压板以嵌孔套在芯棒的顶端上， 所述工作面上对应小压板 以贯穿孔中心为旋转中心偏转的投影位置开设匹配的容置嵌槽；所述螺旋弹簧 套设在套管外部，作用于所述中心杆和座体之间， 其长度方向的弹力迫使压料 件的小压板向下运动， 扭力迫使小压板由容置嵌槽向芯棒的方向转动； 所述压 料件具有夹持和松开两个工作位置，在夹持工作位置上小压板的嵌孔与芯棒顶 端嵌套配合， 在松开工作位置上小压板嵌于容置嵌槽内定位； 中心杆的底部在 径向上伸设有一定位杆，而座体上对应压料件处在夹持工作位置上时定位杆的 位置设有一阻挡限位部， 定位杆与阻挡限位部相配合对压料件定位； 置， 夹料顶杆的顶端对应第一顶压部设有一顶压面， 夹料顶杆作上下方向的垂 直运动， 该顶压面与第一顶压部抵压配合， 使工件夹具的压料件从松开工作位 置转换至夹持工作位置；
所述脱料顶杆在脱料工位上对应该工位上的工件夹具设置，脱料顶杆的顶 端对应第一顶压部设有一顶压面，且在该顶压面外周对应所述定位杆设有一段 作用斜面，脱料顶杆作上下方向垂直运动，脱料顶杆的作用斜面与定位杆配合， 脱料顶杆的顶压面与第一顶压部抵压配合，使压料件的 、压板克服弹簧扭力旋 转至或超过容置嵌槽的位置， 压料件从夹持工作位置转换至松开工作位置。
2、 根据权利要求 1所述的针灸针自动绕柄机的工件夹持装置， 其特征在 于： 所述座体与压料件间嵌设有一抬料件， 所述抬料件由抬料板和该抬料板中 ' 部向下垂直设置的一 '套管构成，所述抬料板中部对应套管的中心孔开孔构成所 述贯穿孔； 所述抬料件以套管穿设于座体上， 套管底部向下伸出作为第二顶压 部， 且抬料板叠置于座体上， 所述芯棒一端固接于座体上， 另一端经抬料板向 上穿出， 抬料板的板面作为所述工作面， 所述压料件以中心杆穿设于抬料件的 贯穿孔中， 所述第一顶压部伸出于抬料件的套管下端口外； 所述脱料顶杆的顶 压面直接与第二顶压部抵压配合，或者经第一顶压部传递动力间接与第二顶压 部抵压配合。
3、 根据权利要求 2所述的针灸针自动绕柄机的工件夹持装置， 其特征在 于： 所述各工件夹具的中心杆底部固定套设有一挡环， 弹簧的一端固定在挡环 顶面上，另一端固定在座体的底面上，所述挡环的顶面与第二顶压部抵压配合。
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CN108310666B (zh) * 2017-12-26 2023-05-12 宁波中哲医疗科技有限公司 一种碳棒夹料机构
CN108150111A (zh) * 2018-01-26 2018-06-12 襄阳亚舟重型工程机械有限公司 多功能钻臂和具有该钻臂的凿岩车
CN108150111B (zh) * 2018-01-26 2024-01-16 襄阳亚舟重型工程机械有限公司 多功能钻臂和具有该钻臂的凿岩车
CN108635225A (zh) * 2018-05-28 2018-10-12 苏州医疗用品厂有限公司 针灸针自动落针装置
CN115026569A (zh) * 2022-06-09 2022-09-09 东莞市振亮精密科技有限公司 电子膨胀阀组装设备
CN115026569B (zh) * 2022-06-09 2023-11-03 东莞市振亮精密科技有限公司 电子膨胀阀组装设备

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