WO2020143453A1 - 可视夹紧力装置及夹具 - Google Patents

可视夹紧力装置及夹具 Download PDF

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Publication number
WO2020143453A1
WO2020143453A1 PCT/CN2019/128334 CN2019128334W WO2020143453A1 WO 2020143453 A1 WO2020143453 A1 WO 2020143453A1 CN 2019128334 W CN2019128334 W CN 2019128334W WO 2020143453 A1 WO2020143453 A1 WO 2020143453A1
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WO
WIPO (PCT)
Prior art keywords
clamping
arm
seat
clamping force
visual
Prior art date
Application number
PCT/CN2019/128334
Other languages
English (en)
French (fr)
Inventor
李跃明
Original Assignee
杭州联和电气制造有限公司
杭州巨星科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 杭州联和电气制造有限公司, 杭州巨星科技股份有限公司 filed Critical 杭州联和电气制造有限公司
Priority to JP2021529743A priority Critical patent/JP7353367B2/ja
Priority to US17/295,460 priority patent/US11559874B2/en
Priority to EP19908877.4A priority patent/EP3909718A4/en
Publication of WO2020143453A1 publication Critical patent/WO2020143453A1/zh
Priority to US18/086,701 priority patent/US20230126075A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/068—Arrangements for positively actuating jaws with at least one jaw sliding along a bar
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/02—Clamps with sliding jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/04—Clamps with pivoted jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/16—Details, e.g. jaws, jaw attachments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/16—Details, e.g. jaws, jaw attachments
    • B25B5/163—Jaws or jaw attachments
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0057—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring forces due to spring-shaped elements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0061—Force sensors associated with industrial machines or actuators
    • G01L5/0066—Calibration arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0061—Force sensors associated with industrial machines or actuators
    • G01L5/0076—Force sensors associated with manufacturing machines
    • G01L5/009—Force sensors associated with material gripping devices

Definitions

  • the invention belongs to a manual clamp, in particular to a manually operated visual clamping force device and clamp.
  • the technical problem to be solved and the technical task proposed by the present invention are to overcome the defect that it is difficult to determine the size of the clamping force when the existing manual clamp is used, and to provide a visual clamping force clamp to intuitively see and read during clamping The clamping force is output to achieve precise clamping.
  • the visual clamping force device of the present invention includes a first clamping body for clamping an object, which is characterized in that the first clamping body is telescopically assembled on a seat, and the An elastic element is arranged between the first clamping body and the seat, the first clamping body and the seat are provided with a clamping force scale and a reading index, and the first clamping body is clamped
  • the elastic element measures the clamping force and points the clamping force scale through the reading index for reading.
  • the seat is set with the first clamping body, and the reading index or clamping force scale is located on the outer seat or the first clamping body, located at The first clamping body or seat on the inner side is provided with a visual clamping force scale or reading indicator.
  • the seat has an axial hole
  • the first clamping body has a telescopic section
  • the axial hole is sleeved on the telescopic section.
  • the telescopic section has an inner hole, one end of the elastic element is supported at the bottom of the axial hole, and the other end is supported at the bottom of the inner hole.
  • the seat or the first clamping body is provided with a column, and the elastic element is a spiral compression spring sleeved on the column.
  • a window is set on the seat or the first clamping body located on the outside and the reading index or clamping force scale is set on the edge of the window.
  • the front edge of the seat or the first clamping body located on the outside is used as the reading indicator, and the clamping force is provided on the first clamping body or seat located on the inside Scale.
  • an adjustment screw is provided for the first clamping body, the adjustment screw is connected to the seat through the first clamping body, and the screw is screwed
  • the adjusting screw adjusts the initial pressure of the first clamping body on the elastic element.
  • the visual clamping force fixture of the present invention includes the visual clamping force device of the present invention and a second clamping body (02) matched with the first clamping body to achieve clamping.
  • the seat is located on a first arm
  • the second clamping body is located on a second arm
  • the first arm extends integrally
  • a fixed handle the second arm is fixed on a guide rod
  • the guide rod is threaded on the first arm
  • the first arm is provided with a forcible grip and an unlocked grip
  • a locking clip for locking the guide bar on the first arm the stiffening grip is linked with the stiffening clip to make the grip
  • the forcible grip and the fixed grip urge the guide rod to slide
  • the second arm moves closer to the first arm
  • the unlocking grip interacts with the locking clip to hold the grip
  • the grip is unlocked and the grip is fixed, the locking of the guide bar by the locking clip is released.
  • the seat is set on a first arm
  • the second clamping body is set on a second arm
  • a clamp is connected to the first arm Hold the handle tightly and unlock the handle
  • the second arm is fixed on a guide rod
  • the guide rod is threaded on the first arm.
  • the seat is set on a first arm
  • the second clamping body is set on a second arm
  • the first arm extends out of the first Grip
  • the second arm extends out of the second grip
  • the first arm and the second arm are connected by a pivot
  • a locking mechanism is provided between the first grip and the second grip And unlock the mechanism.
  • the seat is integrated with the first arm.
  • the seat is assembled on the first arm.
  • the seat is clamped on the first arm.
  • the seat is assembled on the first arm by pins.
  • a clamping body is telescopically assembled on a seat, and an elastic element is arranged between the clamping body and the seat.
  • a clamping force scale and a reading indicator are separately arranged on the clamping body and the seat.
  • the elastic element measures when clamping an object
  • the clamping force is directed to the clamping force scale for reading through the reading index, so that the clamping force can be intuitively seen and read out during clamping to achieve accurate clamping.
  • FIG. 1 is a schematic diagram of the first visual clamping force fixture of the present invention
  • Figure 2 is a top view of Figure 1;
  • FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
  • FIG. 4 is a schematic view of the external structure of the first clamping body telescopically assembled on the seat of the present invention
  • FIG. 5 is a schematic view of the internal structure of the first clamping body telescopically assembled on the seat of the present invention
  • FIG. 6 is a schematic diagram of a second visual clamping force fixture of the present invention.
  • FIG. 7 is a schematic diagram of a third visual clamping force fixture of the present invention.
  • FIG. 8 is a schematic diagram of the seat of the present invention and the first arm are integrated, and the front edge of the seat is used as a reading indicator;
  • FIG. 9 is a schematic view of the seat of the present invention is assembled on the first arm by lateral pins;
  • FIG. 10 is a schematic view of the seat of the present invention is assembled on the first arm by a transverse pin;
  • 01-first clamping body 11-clamping force scale, 12-telescopic section, 13-inner hole, 14-seat, 15-reading index, 16-window, 17-axial hole, 18-pillar, 19- Card slot, 110-elastic element, 111-adjusting screw, 112-pad;
  • the visual clamping force device shown in FIGS. 4-5 includes a first clamping body 01 for clamping an object, the first clamping body 01 is telescopically assembled on the seat 14, and the first clamping body 01 and the seat An elastic element 110 is provided between 14, a clamping force scale 11 is provided on the first clamping body 01, and a reading indicator 15 is provided on the seat 14.
  • the elastic element 110 measures the clamping force and passes the reading
  • the index 15 points to the clamping force scale 11 for reading, so that the magnitude of the clamping force can be visually seen and read out, and accurate clamping is achieved.
  • the reading index and the clamping force scale will change relative positions. Therefore, in specific implementation, the reading index and the clamping force scale can be interchanged.
  • the seat 14 is set with the first clamping body 01.
  • Figure 4-5 shows that the seat 16 on the outer side is provided with a window 16 and a reading indicator 15 is provided on the edge of the window.
  • the clamping body 01 is provided with a clamping force scale 11 visible through the window.
  • a window may be opened on the first clamping body located on the outside and a reading indicator may be provided on the edge of the window, and a clamping force scale visible through the window may be provided on the seat located on the inside. Further, no matter which of the seat and the first clamping body is outside, the reading index and the clamping force scale can be interchanged.
  • the front edge of the seat 14 on the outer side serves as a reading indicator, and a clamping force scale is provided on the first clamping body on the inner side.
  • a reading indicator the front edge of the first clamping body located outside can also be used as a reading indicator, and the clamping force scale can be set on the seat located inside.
  • the seat 14 has an axial hole 17, the first clamping body 01 has a telescopic section 12, and the axial hole 17 is sleeved on the telescopic section 12. Further, the telescopic section 12 has an inner hole 13, and one end of the elastic element 110 is supported at the bottom of the axial hole 17 and the other end is supported at the bottom of the inner hole 13.
  • the seat is provided with a column 18, and the elastic element 110 is a helical compression spring sleeved on the column 18, so as to ensure a compact structure and support the helical compression spring through the column to avoid bending caused by the helical compression spring being compressed The measurement is inaccurate.
  • the post may also be provided on the first clamping body.
  • the first clamping body is provided with an adjusting screw 111.
  • the adjusting screw 111 is connected to the seat 14 through the first clamping body to maintain the assembly relationship between the first clamping body, the seat and the elastic element And, by turning the adjusting screw, the initial pressure of the first clamping body on the elastic element can be adjusted.
  • the initial pressure can be zero or a certain pressure value.
  • the clamping force scale and reading index can be marked (such as engraving, laser marking, pad printing, etc.) at the corresponding positions after calibration adjustment.
  • the first clamping body includes a gasket 112 at its end, which shields the adjusting screw.
  • the second clamping body includes a liner at the end thereof. The liner can increase contact with the clamped object while protecting the surface of the clamped object.
  • the clamp includes the visual clamping force device and the second clamping body 02 matched with the first clamping body 01 to achieve clamping, and can be used to clamp an object, and the clamp can be expressed as many Kinds of forms.
  • a structure of a clamp is shown in Fig. 1-3. It is an F clamp.
  • the first clamp body 01 is provided on a first arm 03
  • the second clamp body 02 is provided on a second arm 04.
  • a fixed handle 31 is integrally extended from the first arm 03
  • a second arm 04 is fixed on the guide rod 05
  • the guide rod 05 is threaded on the first arm 03
  • the first arm 03 is provided with an afterburning grip 32 to unlock Grip 33
  • a stiffening clip 34 for urging the guide bar
  • a locking clip 35 for locking the guide bar on the first arm
  • the stiffening grip 32 and the stiffening clip 34 are linked to make the grip
  • the guide rod 05 is caused to slide
  • the second arm 04 is moved closer to the first arm 03
  • the unlocking grip 33 and the locking clip 35 are linked to release the grip when the unlocking grip and the fixed grip are held.
  • the locking clip locks the guide rod and releases the clamping.
  • FIG. 6 Another structure of the clamp is shown in FIG. 6, the first clamping body 01 is provided on the first arm 03, the second clamping body 02 is provided on the second arm 04, and the first arm 03 is connected with a clamp Grip 36, unlock grip 37, second arm 04 is fixed on a guide rod 05, the guide rod 05 is threaded on the first arm 03, clamping can be achieved by operating the grip 36, unlocking the grip by operating 37 Realize clamping and unlocking, and release clamping.
  • the structure of the third clamp is shown in FIG. 7, the first clamping body 01 is provided on the first arm 03, the second clamping body 02 is provided on the second arm 04, and the first arm 03 extends out of the first grip
  • the handle 38 and the second arm 04 extend out of the second grip 41, the first arm 03 and the second arm 04 are connected by a pivot 06, and a locking mechanism 07 and a locking mechanism 07 are provided between the first grip 38 and the second grip 41
  • the unlocking mechanism 08, the locking mechanism is a ratchet and pawl mechanism, and the unlocking mechanism includes a grip. Clamping is achieved by holding the first grip 38 and the second grip 41 and locked by the locking mechanism, and unlocking is achieved by operating the unlocking mechanism to release the clamping.
  • the seat 14 and the first arm 03 can be integrated into one as shown in FIG. 8. Or, the seat 14 is assembled on the first arm 03, so that the seat, the first clamping body, and the elastic element are integrated as shown in FIGS. 4-5 and are independent of other structures of the clamp, and the independent structure is small in size and easy to calibrate 1. Turning between the various stations when adjusting the initial pressure of the elastic element.
  • the seat 14 shown in FIGS. 1-3, 6 and 7 is clipped on the first arm 03.
  • the seat 14 is provided with a card slot 19 as a connection structure, and the card slot is opened on one side (shown as the lower side) 4.
  • the remaining sides are surrounded by edges, and the seat can be conveniently locked in its installation position through the opening.
  • a head matching the clamping groove is provided, and the elasticity of the material (such as engineering plastic) is used to achieve a certain pre-tensioned clamping to avoid disengagement. This type of assembly is particularly convenient for assembly.
  • the seat 14 shown in FIG. 9 is assembled on the end of the first arm 03 by a pin in the lateral direction (the direction perpendicular to the paper), at this time it is preferable that the seat and the first arm are put together and overlap Segment piercing pins.
  • the seat 14 shown in FIG. 10 is assembled to the end of the first arm 03 by a pin in the lateral direction (left-right direction in the figure). At this time, a flange for threading the pin may be provided on the seat and the first arm.
  • first clamping body and the second clamping body are determined by the reference numerals, the actual implementation does not limit such a manifestation, and the first clamping body and the second clamping body can be mutually Changing the position can also present the idea of the present invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Clamps And Clips (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)

Abstract

一种可视夹紧力装置，包括用于夹紧物体的第一夹持体（01），第一夹持体（01）伸缩地装配在一座（14）上，第一夹持体（01）与座（14）之间设弹性元件（110），第一夹持体（01）与座（14）上分开设夹紧力刻度（11）及读数指标（15），第一夹持体（01）夹持物体时弹性元件（110）测量夹紧力并通过读数指标（15）指向夹紧力刻度（11）供读数，从而可以在夹紧时直观的看见、读出夹紧力的大小，实现精准夹持。还涉及包括该可视夹紧力装置的夹具。

Description

可视夹紧力装置及夹具 技术领域
本发明属于手动夹具，具体涉及一种手动操作的可视夹紧力装置及夹具。
背景技术
现有的手动夹具，除了夹紧的基本功能外，使用时往往难以确定夹紧力的大小，这造成夹紧的盲目性，难以准确实现夹紧目的。
发明内容
本发明要解决的技术问题和提出的技术任务是克服现有手动夹具在使用时难以确定夹紧力大小的缺陷，提供一种可视夹紧力夹具，以在夹紧时直观的看见、读出夹紧力的大小，实现精准夹紧。
为达到上述目的，本发明的可视夹紧力装置，包括用于夹紧物体的第一夹持体，其特征是：所述的第一夹持体伸缩地装配在一座上，所述的第一夹持体与所述的座之间设弹性元件，所述的第一夹持体与所述的座上分开设夹紧力刻度及读数指标，所述的第一夹持体夹紧物体时所述的弹性元件测量夹紧力并通过所述读数指标指向所述夹紧力刻度供读数。
作为可视夹紧力装置的优选技术手段：所述的座与第一夹持体套装在一起，位于外侧的座或第一夹持体上设所述的读数指标或夹紧力刻度，位于内侧的第一夹持体或座上设可视的夹紧力刻度或读数指标。
作为可视夹紧力装置的优选技术手段：所述的座具有一个轴向孔，所述的第一夹持体具有一个伸缩段，所述的轴向孔套在所述的伸缩段上。
作为可视夹紧力装置的优选技术手段：所述的伸缩段具有内孔，所述弹性元件的一端支撑在所述轴向孔的底部、另一端支撑在所述的内孔的底部。
作为可视夹紧力装置的优选技术手段：所述的座或者第一夹持体上设有柱，所述的弹性元件为套在所述的柱上的螺旋状压缩弹簧。
作为可视夹紧力装置的优选技术手段：位于外侧的座或第一夹持体上开设窗口并在窗口边缘设所述的读数指标或夹紧力刻度。
作为可视夹紧力装置的优选技术手段：位于外侧的座或第一夹持体的前端边缘作为所述的读数指标，位于内侧的第一夹持体或座上设所述的夹紧力刻度。
作为可视夹紧力装置的优选技术手段：为所述的第一夹持体配置调节螺钉，所述调节螺钉穿过所述的第一夹持体连接在所述的座上，旋拧所述的调节螺钉调节所述第一夹持体对 所述弹性元件的初始压力。
为达到上述目的，本发明的可视夹紧力夹具，包括本发明的可视夹紧力装置及与所述的第一夹持体相配实现夹紧的第二夹持体(02)。
作为可视夹紧力夹具的优选技术手段：所述的座设于一第一臂上，所述的第二夹持体设于一第二臂上，所述的第一臂上一体延伸出固定握柄，所述的第二臂固定在一导杆上，所述的导杆穿设在所述的第一臂上，所述的第一臂上设有加力握柄、解锁握柄、用于对导杆加力的加力夹片、用于将导杆锁在第一臂上的锁止夹片，所述的加力握柄与所述的加力夹片联动使得握持所述加力握柄与固定握柄时促使所述导杆滑动、所述的第二臂向第一臂靠拢，所述的解锁握柄与所述的锁止夹片联动使得握持所述解锁握柄与固定握柄时解除所述锁止夹片对导杆的锁止。
作为可视夹紧力夹具的优选技术手段：所述的座设于一第一臂上，所述的第二夹持体设于一第二臂上，所述的第一臂上连接有夹紧握柄、解锁握柄，所述的第二臂固定在一导杆上，所述的导杆穿设在所述的第一臂上。
作为可视夹紧力夹具的优选技术手段：所述的座设于一第一臂上，所述的第二夹持体设于一第二臂上，所述的第一臂延伸出第一握柄，所述的第二臂延伸出第二握柄，所述的第一臂与第二臂通过枢轴连接，所述的第一握柄与第二握柄之间设有锁止机构及解锁机构。
作为可视夹紧力夹具的优选技术手段：所述的座与所述的第一臂制为一体。
作为可视夹紧力夹具的优选技术手段：所述的座装配在所述的第一臂上。
作为可视夹紧力夹具的优选技术手段：所述的座卡装在所述的第一臂上。
作为可视夹紧力夹具的优选技术手段：所述的座通过销钉装配在所述的第一臂上。
本发明将一个夹持体伸缩地装配在一座上，该夹持体与座之间设弹性元件，该夹持体与座上分开设夹紧力刻度及读数指标，夹持物体时弹性元件测量夹紧力并通过读数指标指向夹紧力刻度供读数，从而可以在夹紧时直观的看见、读出夹紧力的大小，实现精准夹持。
附图说明
图1为本发明第一种可视夹紧力夹具的示意图；
图2为图1的俯视图；
图3为图2的A-A向剖视图；
图4为本发明的第一夹持体伸缩地装配在座上的外部结构示意图；
图5为本发明的第一夹持体伸缩地装配在座上的内部结构示意图；
图6为本发明第二种可视夹紧力夹具的示意图；
图7为本发明第三种可视夹紧力夹具的示意图；
图8为本发明的座与第一臂制为一体且座的前端边缘作为读数指标的示意图；
图9为本发明的座通过侧向销钉装配在第一臂上的示意图；
图10为本发明的座通过横向销钉装配在第一臂上的示意图；
图中标号说明：
01-第一夹持体，11-夹紧力刻度，12-伸缩段，13-内孔，14-座，15-读数指标，16-窗口，17-轴向孔，18-柱，19-卡槽，110-弹性元件，111-调节螺钉，112-衬垫；
02-第二夹持体；
03-第一臂，31-固定握柄，32-加力握柄，33-解锁握柄，34-加力夹片，35-锁止夹片，36-夹紧握柄，37-解锁握柄，38-第一握柄；
04-第二臂，41-第二握柄；
05-导杆；
06-枢轴；
07-锁止机构；
08-解锁机构；
09-销钉。
具体实施方式
以下结合说明书附图对本发明做进一步说明。
如图4-5所示的可视夹紧力装置，包括用于夹紧物体的第一夹持体01，第一夹持体01伸缩地装配在座14上，第一夹持体01与座14之间设弹性元件110，第一夹持体01上设夹紧力刻度11，座14上设读数指标15，第一夹持体01夹紧物体时弹性元件110测量夹紧力并通过读数指标15指向夹紧力刻度11供读数，从而可以直观的看见、读出夹紧力的大小，实现精准夹持。夹紧时随着夹紧力的大小变化，读数指标与夹紧力刻度会相对变化位置，因此具体实施时，读数指标与夹紧力刻度可以互换位置。
为了结构紧凑，测量精确，座14与第一夹持体01套装在一起，图4-5所示为位于外侧的座14上开设窗口16并在窗口边缘设读数指标15，位于内侧的第一夹持体01上设通过窗口可视的夹紧力刻度11。具体实施时，可以是位于外侧的第一夹持体上开设窗口并在窗口边缘设读数指标，位于内侧的座上设通过窗口可视的夹紧力刻度。进一步的，无论座与第一夹持体中哪一个在外，读数指标与夹紧力刻度可以互换位置。
此外，如图8所示，位于外侧的座14的前端边缘作为读数指标，位于内侧的第一夹 持体上设夹紧力刻度。显然的，也可是位于外侧的第一夹持体的前端边缘作为读数指标，位于内侧的座上设夹紧力刻度。
为了避免夹持体晃动造成夹紧力测量失准，座14具有一个轴向孔17，第一夹持体01具有一个伸缩段12，轴向孔17套在伸缩段12上。进一步的，伸缩段12具有内孔13，弹性元件110的一端支撑在轴向孔17的底部、另一端支撑在内孔13的底部。座上设有柱18，弹性元件110为套在柱18上的螺旋状压缩弹簧，从而保证结构紧凑的同时，通过柱对螺旋状压缩弹簧进行扶持，避免螺旋状压缩弹簧受压时弯折造成测量失准。鉴于柱对螺旋状压缩弹簧的扶持作用，柱也可设在第一夹持体上。
为了校准、调节弹性元件的初始压力，为第一夹持体配置调节螺钉111，调节螺钉111穿过第一夹持体连接在座14上，维系第一夹持体、座及弹性元件的装配关系，而且旋拧调节螺钉可以调节第一夹持体对弹性元件的初始压力。根据使用需求，初始压力可以为零，也可以为一定的压力数值。鉴于此，所述的夹紧力刻度、读数指标可以在校准调节后标记(如刻印、激光打标、移印等)在相应的位置。图示中，第一夹持体包括其端部的衬垫112，该衬垫将调节螺钉遮蔽。同样的，第二夹持体包括其端部的衬垫，衬垫可增加与被夹持物的接触，同时保护被夹持物的表面。
基于上述可视夹紧力装置，夹具包括该可视夹紧力装置及与第一夹持体01相配实现夹紧的第二夹持体02即可用于夹持物体，且夹具可以表现为多种形式。
一种夹具的结构形式如图1-3所示，其是一种F夹，第一夹持体01设于一第一臂03上，第二夹持体02设于第二臂04上，第一臂03上一体延伸出固定握柄31，第二臂04固定在导杆05上，导杆05穿设在第一臂03上，第一臂03上设有加力握柄32、解锁握柄33、用于对导杆加力的加力夹片34、用于将导杆锁在第一臂上的锁止夹片35，加力握柄32与加力夹片34联动使得握持加力握柄与固定握柄时促使导杆05滑动、第二臂04向第一臂03靠拢，解锁握柄33与锁止夹片35联动使得握持解锁握柄与固定握柄时解除锁止夹片对导杆的锁止，解除夹紧。
另一种夹具的结构形式如图6所示，第一夹持体01设于第一臂03上，第二夹持体02设于第二臂04上，第一臂03上连接有夹紧握柄36、解锁握柄37，第二臂04固定在一导杆05上，导杆05穿设在第一臂03上，通过操作夹紧握柄36可以实现夹持，通过操作解锁握柄37实现夹紧解锁，解除夹紧。
第三种夹具的结构形式如图7所示，第一夹持体01设于第一臂03上，第二夹持体02设于第二臂04上，第一臂03延伸出第一握柄38，第二臂04延伸出第二握柄41，第一 臂03与第二臂04通过枢轴06连接，第一握柄38与第二握柄41之间设有锁止机构07及解锁机构08，锁止机构为棘轮棘爪机构，解锁机构包括握柄。通过握持第一握柄38、第二握柄41实现夹紧并由锁止机构锁止，通过操作解锁机构实现解锁，解除夹紧。
无论何种结构形式的夹具，座14与第一臂03均可如图8所示制为一体。或者，座14装配在第一臂03上，使得座、第一夹持体、弹性元件如图4-5所示成为一个整体而独立于夹具的其它结构，该独立结构体积较小，便于校准、调节弹性元件的初始压力时在各个工位之间周转。
图1-3、图6、图7所示的座14是卡装在第一臂03上，具体的，座14上设卡槽19作为连接结构，该卡槽一边(图示为下边)开口、其余各边设围边，通过开口可以将座便捷的卡在其安装位置。相应的，与卡槽相配在第一臂的端部设与卡槽相吻合的头部，而且利用材质的弹性(如工程塑料)实现一定预紧力的卡装，避免脱开。这种装配方式尤其便于装配。
图9所示的座14是通过侧向(图示垂直于纸面的方向)的销钉装配在第一臂03的端部，此时优选座与第一臂套装在一起并在二者的重合段穿设销钉。
图10所示的座14是通过横向(图示的左右方向)的销钉装配在第一臂03的端部，此时，可在座与第一臂上设用于穿设销钉的法兰。
图中，虽然通过附图标记确定了第一夹持体、第二夹持体，但实际实施时并不限制这样的表现形式，所述的第一夹持体、第二夹持体可以互换位置，同样能够提现本发明的构思。

Claims (16)

  1. 可视夹紧力装置，包括用于夹紧物体的第一夹持体(01)，其特征是：所述的第一夹持体(01)伸缩地装配在一座(14)上，所述的第一夹持体(01)与所述的座(14)之间设弹性元件(110)，所述的第一夹持体(01)与所述的座(14)上分开设夹紧力刻度(11)及读数指标(15)，所述的第一夹持体(01)夹紧物体时所述的弹性元件(110)测量夹紧力并通过所述读数指标(15)指向所述夹紧力刻度(11)供读数。
  2. 根据权利要求1所述的可视夹紧力装置，其特征是：所述的座(14)与第一夹持体(01)套装在一起，位于外侧的座(14)或第一夹持体上设所述的读数指标或夹紧力刻度，位于内侧的第一夹持体或座上设可视的夹紧力刻度或读数指标。
  3. 根据权利要求2所述的可视夹紧力装置，其特征是：所述的座(14)具有一个轴向孔(17)，所述的第一夹持体(01)具有一个伸缩段(12)，所述的轴向孔(17)套在所述的伸缩段(12)上。
  4. 根据权利要求3所述的可视夹紧力装置，其特征是：所述的伸缩段(12)具有内孔(13)，所述弹性元件(110)的一端支撑在所述轴向孔(17)的底部、另一端支撑在所述的内孔(13)的底部。
  5. 根据权利要求4所述的可视夹紧力装置，其特征是：所述的座(14)或者第一夹持体上设有柱(18)，所述的弹性元件(110)为套在所述的柱(18)上的螺旋状压缩弹簧。
  6. 根据权利要求2所述的可视夹紧力装置，其特征是：位于外侧的座(14)或第一夹持体上开设窗口(16)并在窗口边缘设所述的读数指标或夹紧力刻度。
  7. 根据权利要求2所述的可视夹紧力装置，其特征是：位于外侧的座(14)或第一夹持体的前端边缘作为所述的读数指标，位于内侧的第一夹持体或座上设所述的夹紧力刻度。
  8. 根据权利要求1所述的可视夹紧力装置，其特征是：为所述的第一夹持体配置调节螺钉(111)，所述调节螺钉(111)穿过所述的第一夹持体(01)连接在所述的座(14)上，旋拧所述的调节螺钉调节所述第一夹持体对所述弹性元件的初始压力。
  9. 可视夹紧力夹具，其特征是：包括权利要求1-8中任一项所述的可视夹紧力装置及与所述的第一夹持体(01)相配实现夹紧的第二夹持体(02)。
  10. 根据权利要求9所述的可视夹紧力夹具，其特征是：所述的座(14)设于一第一臂(03)上，所述的第二夹持体(02)设于一第二臂(04)上，所述的第一臂(03)上一体延伸出固定握柄(31)，所述的第二臂(04)固定在一导杆(05)上，所述的导杆(05)穿设在所述的第一臂(03)上，所述的第一臂(03)上设有加力握柄(32)、解锁握柄(33)、用于对导杆加力的加力夹片(34)、用于将导杆锁在第一臂上的锁止夹片(35)，所述的加力握 柄(32)与所述的加力夹片(34)联动使得握持所述加力握柄(32)与固定握柄(31)时促使所述导杆(05)滑动、所述的第二臂(04)向第一臂(03)靠拢，所述的解锁握柄(33)与所述的锁止夹片(35)联动使得握持所述解锁握柄(33)与固定握柄(31)时解除所述锁止夹片(35)对导杆的锁止。
  11. 根据权利要求9所述的可视夹紧力夹具，其特征是：所述的座(14)设于一第一臂(03)上，所述的第二夹持体(02)设于一第二臂(04)上，所述的第一臂(03)上连接有夹紧握柄(36)、解锁握柄(37)，所述的第二臂(04)固定在一导杆(05)上，所述的导杆(05)穿设在所述的第一臂(03)上。
  12. 根据权利要求9所述的可视夹紧力夹具，其特征是：所述的座(14)设于一第一臂(03)上，所述的第二夹持体(02)设于一第二臂(04)上，所述的第一臂(03)延伸出第一握柄(38)，所述的第二臂(04)延伸出第二握柄(41)，所述的第一臂与第二臂通过枢轴(06)连接，所述的第一握柄与第二握柄之间设有锁止机构(07)及解锁机构(08)。
  13. 根据权利要求10-12中任一项所述的可视夹紧力夹具，其特征是：所述的座(14)与所述的第一臂(03)制为一体。
  14. 根据权利要求10-12中任一项所述的可视夹紧力夹具，其特征是：所述的座(14)装配在所述的第一臂(03)上。
  15. 根据权利要求14所述的可视夹紧力装置，其特征是：所述的座(14)卡装在所述的第一臂(03)上。
  16. 根据权利要求14所述的可视夹紧力装置，其特征是：所述的座(14)通过销钉装配在所述的第一臂(03)上。
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