CN204321688U - Differential clamping device - Google Patents

Differential clamping device Download PDF

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Publication number
CN204321688U
CN204321688U CN201420836373.8U CN201420836373U CN204321688U CN 204321688 U CN204321688 U CN 204321688U CN 201420836373 U CN201420836373 U CN 201420836373U CN 204321688 U CN204321688 U CN 204321688U
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CN
China
Prior art keywords
screw
clamping
splint
screw rod
thread hole
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Expired - Fee Related
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CN201420836373.8U
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Chinese (zh)
Inventor
王保民
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Shaanxi University of Technology
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Shaanxi University of Technology
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Priority to CN201420836373.8U priority Critical patent/CN204321688U/en
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Publication of CN204321688U publication Critical patent/CN204321688U/en
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Expired - Fee Related legal-status Critical Current

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Abstract

本实用新型公开了一种差动夹紧装置,包括夹板、螺杆和旋动螺杆的手柄,所述夹板的中线位置设有一个前后贯通的变形槽,变形槽的开口端设有夹持口,在靠近夹持口的两侧槽壁上分别设有大螺纹孔和小螺纹孔,两螺纹孔的螺纹旋向相同、轴线重合,大螺纹孔的螺距大于小螺纹孔的螺距;螺杆上有两段分别与夹板上大、小螺纹孔对应且适配的螺纹,螺杆安装在螺纹孔中。转动螺杆时,由于两段螺纹的螺距不同,其旋入或旋出深度存在差值,使得夹板上变形槽两侧的槽壁发生相对位移,使夹持口张开或收紧,即可实现对工件的差动夹紧功能。本实用新型结构简单,定位精度高,锁紧可靠,操作方便快捷,是大批量或长线工件加工时的理想夹紧装置。

The utility model discloses a differential clamping device, which comprises a splint, a screw and a handle of a rotating screw. A deformation groove through the front and back is provided at the center line of the splint, and a clamping opening is provided at the opening end of the deformation groove. There are large threaded holes and small threaded holes on the groove walls on both sides near the clamping port. The threads of the two threaded holes have the same direction of rotation and coincident axes. The pitch of the large threaded hole is greater than that of the small threaded hole; The segments are respectively corresponding to and adapted to the large and small threaded holes on the splint, and the screw rod is installed in the threaded holes. When the screw is turned, due to the difference in the pitch of the two threads, there is a difference in the screw-in or screw-out depth, so that the groove walls on both sides of the deformation groove on the splint are displaced relative to each other, and the clamping mouth is opened or tightened, which can be realized. Differential clamping function of the workpiece. The utility model has the advantages of simple structure, high positioning precision, reliable locking, convenient and fast operation, and is an ideal clamping device for processing large batches or long-line workpieces.

Description

差动夹紧装置Differential clamping device

技术领域technical field

本实用新型属于机床附件领域,涉及的是一种机械加工时工件的专用夹紧装置,具体涉及的是一种差动夹紧装置。The utility model belongs to the field of machine tool accessories, and relates to a special clamping device for workpieces during machining, in particular to a differential clamping device.

背景技术Background technique

在机械加工过程中,工件的夹紧装置主要有专用夹具和虎钳。专用夹具适合大批量工件加工,但其适用范围窄,成本高;虎钳作为普通夹具,其通用性强、适应范围广,但其定位精度低,工作效率低,不适合在大批量或长线产品的加工中使用。In the process of machining, the clamping devices of the workpiece mainly include special fixtures and vises. Special fixtures are suitable for processing large quantities of workpieces, but their scope of application is narrow and the cost is high; vices, as ordinary fixtures, have strong versatility and a wide range of applications, but their positioning accuracy is low and work efficiency is low, so they are not suitable for large quantities or long-term products. used in processing.

发明内容Contents of the invention

本实用新型的目的在于提出一种制造成本低,适合批量工件加工是用的差动夹紧装置。The purpose of the utility model is to provide a differential clamping device with low manufacturing cost and suitable for batch workpiece processing.

实现上述目的的技术方案是:一种差动夹紧装置,包括夹板、螺杆和旋动螺杆的手柄,其特征在于,所述夹板为矩形板,其中线位置设有一个前后贯通的变形槽,变形槽的开口端设有工件夹持口,靠近变形槽底的夹板外部顶端设有装夹柄,在靠近夹持口的两侧槽壁上,一侧设有大螺纹孔,另一侧设有小螺纹孔,两螺纹孔的螺纹旋向相同、轴线重合,大螺纹孔的螺距大于小螺纹孔的螺距;所述螺杆是一个有两段螺纹的螺杆,其中一段为大径螺纹,另一段为小径螺纹,两段螺纹分别旋合在夹板上各自对应的螺纹孔中;所述手柄安装在螺杆柄上。The technical solution to achieve the above purpose is: a differential clamping device, including a splint, a screw, and a handle for rotating the screw. The opening end of the deformation groove is provided with a workpiece clamping port, and the outer top of the splint near the bottom of the deformation tank is provided with a clamping handle. On the two sides of the groove wall near the clamping port, one side is provided with a large threaded hole, and the other side is provided with a clamping handle. There are small threaded holes, the threads of the two threaded holes have the same direction of rotation and the axes coincide, and the pitch of the large threaded hole is greater than that of the small threaded hole; the screw is a screw with two sections of thread, one of which is a large diameter thread, and the other section It is a small-diameter thread, and the two sections of threads are respectively screwed into corresponding threaded holes on the splint; the handle is installed on the screw handle.

进一步,所述大螺纹孔的内径大于小螺纹孔的外径。Further, the inner diameter of the large threaded hole is larger than the outer diameter of the small threaded hole.

进一步,所述螺杆上,两段螺纹之间的间隔段为光滑的圆柱体,该圆柱体的直径小于小螺纹孔的内径。Further, on the screw rod, the interval section between two sections of threads is a smooth cylinder, and the diameter of the cylinder is smaller than the inner diameter of the small threaded hole.

当转动手柄将螺杆上的大径螺纹和小径螺纹分别旋入或旋出各自对应的螺纹孔时,由于两段螺纹的螺距不同,其旋入或旋出深度存在差值,使得夹板上变形槽两侧的槽壁发生相对位移,使夹持口张开或收紧,即可实现夹板对工件的差动夹紧功能。When turning the handle to screw the large-diameter thread and the small-diameter thread on the screw into or out of their corresponding threaded holes, due to the different pitches of the two threads, there is a difference in the screw-in or screw-out depth, which makes the deformation groove on the splint The relative displacement of the groove walls on both sides makes the clamping mouth open or tighten, and the differential clamping function of the splint to the workpiece can be realized.

本实用新型结构简单,制造成本低,定位精度高,锁紧可靠,操作方便快捷,是大批量或长线工件加工时的理想夹紧装置。The utility model has the advantages of simple structure, low manufacturing cost, high positioning accuracy, reliable locking, convenient and fast operation, and is an ideal clamping device for large batch or long-line workpiece processing.

附图说明Description of drawings

图1是本实用新型一个实施例的结构示意图。Fig. 1 is a schematic structural view of an embodiment of the utility model.

图2是图1拆去螺杆和手柄后的左视图。Fig. 2 is the left view of Fig. 1 after removing the screw rod and the handle.

图3是本实用新型中螺杆的结构示意图。Fig. 3 is a structural schematic diagram of the screw rod in the utility model.

图中:1.螺杆,101.大径螺纹,102.小径螺纹,103.圆柱体,104.螺杆柄,2.手柄,3.夹板,301.装夹柄,302.变形槽,303.大螺纹孔,304.小螺纹孔,305.夹持口,4.工件。In the figure: 1. screw, 101. large diameter thread, 102. small diameter thread, 103. cylinder, 104. screw handle, 2. handle, 3. splint, 301. clamping handle, 302. deformation groove, 303. large Threaded hole, 304. small threaded hole, 305. clamping mouth, 4. workpiece.

具体实施方式Detailed ways

下面结合附图对本实用新型作进一步说明。Below in conjunction with accompanying drawing, the utility model is further described.

如图1~3所示,本实用新型包括夹板3、螺杆1和旋动螺杆1的手柄2,夹板3为矩形板,其中线位置设有一个前后贯通的变形槽302,变形槽302的开口端设有加持工件的夹持口305,靠近变形槽302底的夹板外部顶端设有装夹柄301,装夹柄301用以装夹夹板3,在靠近夹持口305的两侧槽壁上,一侧设有大螺纹孔303,另一侧设有小螺纹孔304,大螺纹孔303和小螺纹孔304的螺纹旋向相同、轴线重合,大螺纹孔303的螺距大于小螺纹孔304的螺距;螺杆1是一个有两段螺纹的螺杆,其中一段为大径螺纹101,另一段为小径螺纹102,大径螺纹101旋合在大螺纹孔303中,小径螺纹102旋合在小螺纹孔304中;手柄安装在螺杆柄104上。As shown in Figures 1 to 3, the utility model includes a splint 3, a screw 1 and a handle 2 for rotating the screw 1. The splint 3 is a rectangular plate, and the center line position is provided with a deformation groove 302 that runs through the front and back, and the opening of the deformation groove 302 A clamping port 305 for clamping the workpiece is provided at the end, and a clamping handle 301 is provided on the top of the splint near the bottom of the deformation groove 302. The clamping handle 301 is used for clamping the splint 3, and on the groove walls on both sides close to the clamping port 305 One side is provided with a large threaded hole 303, and the other side is provided with a small threaded hole 304. The threads of the large threaded hole 303 and the small threaded hole 304 have the same direction of rotation and coincident axes. The pitch of the large threaded hole 303 is greater than that of the small threaded hole 304. Screw pitch; screw rod 1 is a screw rod with two threads, one of which is a large-diameter thread 101, and the other is a small-diameter thread 102, the large-diameter thread 101 is screwed into the large threaded hole 303, and the small-diameter thread 102 is screwed into the small threaded hole In 304; the handle is installed on the screw handle 104.

当转动手柄2将螺杆1上的大径螺纹101和小径螺纹102分别旋入或旋出夹板3上的大螺纹孔303和小螺纹孔304时,由于两螺纹螺距不同,其旋入或旋出深度存在差值,使得夹板3上变形槽302两边的实体即两侧槽壁发生相对位移,从而使夹持口305张开或收紧,即可以实现差动夹紧功能。When turning the handle 2 to screw the large-diameter thread 101 and the small-diameter thread 102 on the screw rod 1 into or out of the large threaded hole 303 and the small threaded hole 304 on the splint 3 respectively, because the pitch of the two threads is different, it will be screwed in or out. There is a difference in depth, so that the entities on both sides of the deformation groove 302 on the splint 3, that is, the groove walls on both sides, undergo relative displacement, so that the clamping opening 305 is opened or tightened, that is, the differential clamping function can be realized.

将螺杆1旋出时夹持口305收紧,即可夹紧工件4;反之,夹持口305张开,此时可以装夹或取出工件4。由于两螺纹的螺距不同,将工件4夹紧后并可将其锁紧,锁紧更为安全可靠。When the screw 1 is unscrewed, the clamping opening 305 is tightened, and the workpiece 4 can be clamped; otherwise, the clamping opening 305 is opened, and the workpiece 4 can be clamped or taken out at this time. Because the pitches of the two threads are different, the workpiece 4 can be clamped and locked, and the locking is safer and more reliable.

在本实施例中,大螺纹孔303的内径大于小螺纹孔304的外径;螺杆1上,两段螺纹之间的间隔段为圆柱体103,该圆柱体103的直径小于小螺纹孔304的内径。In this embodiment, the inner diameter of the large threaded hole 303 is greater than the outer diameter of the small threaded hole 304; the inside diameter of.

Claims (3)

1. a differential clamping device, comprise the handle of clamping plate, screw rod and turn screw rod, it is characterized in that: described clamping plate are rectangular slab, its midline position is provided with the through distortion groove in front and back, the openend of distortion groove is provided with piece-holder mouth, clamping plate outer tip end near distortion bottom land is provided with clamping handle, on the both sides cell wall near clamp port, side is provided with major thread hole, opposite side is provided with minor thread hole, the thread rotary orientation of two screwed holes is identical, dead in line, and the pitch in major thread hole is greater than the pitch in minor thread hole; Described screw rod is a screw rod having two sections of screw threads, and wherein one section is large-diameter thread, and another section is small-diameter thread, and two sections of screw threads to screw on clamping plate in each self-corresponding screwed hole respectively; Described handle is arranged in screw shank.
2. according to differential clamping device according to claim 1, it is characterized in that: the internal diameter in described major thread hole is greater than the external diameter in minor thread hole.
3. according to differential clamping device according to claim 1, it is characterized in that: on described screw rod, the spacer between two sections of screw threads is smooth cylinder, and this cylindrical diameter is less than the internal diameter in minor thread hole.
CN201420836373.8U 2014-12-16 2014-12-16 Differential clamping device Expired - Fee Related CN204321688U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420836373.8U CN204321688U (en) 2014-12-16 2014-12-16 Differential clamping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420836373.8U CN204321688U (en) 2014-12-16 2014-12-16 Differential clamping device

Publications (1)

Publication Number Publication Date
CN204321688U true CN204321688U (en) 2015-05-13

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Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108194783A (en) * 2018-01-31 2018-06-22 深圳市飞超科技有限公司 Bidirectional modulation clamping device and handset bracket
CN114643485A (en) * 2020-12-18 2022-06-21 航天科工惯性技术有限公司 Machining dress
DE102023135863B3 (en) * 2023-12-19 2024-12-24 Festo Se & Co. Kg clamping device for clamping a workpiece

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108194783A (en) * 2018-01-31 2018-06-22 深圳市飞超科技有限公司 Bidirectional modulation clamping device and handset bracket
CN108194783B (en) * 2018-01-31 2023-12-19 深圳市飞超科技有限公司 Two-way regulation clamping device and cell phone stand
CN114643485A (en) * 2020-12-18 2022-06-21 航天科工惯性技术有限公司 Machining dress
DE102023135863B3 (en) * 2023-12-19 2024-12-24 Festo Se & Co. Kg clamping device for clamping a workpiece

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150513

Termination date: 20151216

EXPY Termination of patent right or utility model