CN110549278A - Automatic threaded connection spherical surface clamp of centering - Google Patents
Automatic threaded connection spherical surface clamp of centering Download PDFInfo
- Publication number
- CN110549278A CN110549278A CN201910972264.6A CN201910972264A CN110549278A CN 110549278 A CN110549278 A CN 110549278A CN 201910972264 A CN201910972264 A CN 201910972264A CN 110549278 A CN110549278 A CN 110549278A
- Authority
- CN
- China
- Prior art keywords
- spherical
- clamp
- clamping block
- pressure plate
- spherical surface
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004154 testing of material Methods 0.000 description 1
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
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention relates to an automatic centering threaded connection spherical clamp which comprises two clamp bodies which are arranged up and down and opposite in position; the fixture body comprises a spherical pressure plate, a spherical clamping block, a positioning screw and a fixture base, wherein the spherical pressure plate is an inner spherical body, and the periphery of the spherical pressure plate is provided with a threaded hole; the spherical clamping block is an outer spherical body with a threaded hole in the center, and a unthreaded hole is formed in the outer periphery of the spherical clamping block; the head end of the positioning screw is provided with a small segment of optical axis, the spherical surface pressure plate and the spherical surface clamping block are connected together by the positioning screw, the spherical surface clamping block can rotate slightly in the spherical surface pressure plate, and the whole positioning screw is fixed on the clamp base by the screw; the center of the clamp base is provided with an internal thread, so that the clamp base can be conveniently connected to the upper/lower table top of the main machine through the thread. The spherical clamp has the advantages of good centering property, convenience in mounting and dismounting, small and compact structure, reserved internal thread interfaces, convenience in mounting and using of a secondary clamp and improvement of production efficiency.
Description
Technical Field
The invention relates to a clamp, in particular to an automatic centering threaded connection spherical clamp.
Background
for testing of material or component samples, coaxiality is a concern for the correctness of the test data. The coaxiality of the sample depends on the structure and the installation of the clamp, and the coaxiality of the common clamp is adjusted slowly by manpower, so that the clamp is time-consuming and labor-consuming, high in labor intensity and low in production efficiency.
Disclosure of Invention
The invention aims to provide a self-centering threaded connection spherical clamp. The clamp has good centering performance, convenient assembly and disassembly, small and compact structure, and reserved internal thread interfaces, thereby facilitating the assembly and use of the secondary clamp.
In order to achieve the purpose, the invention adopts the following technical scheme:
An automatic centering threaded connection spherical clamp comprises two clamp bodies which are arranged up and down and are opposite in position; the fixture body comprises a spherical pressing disc, a spherical clamping block, a positioning screw and a fixture base;
the spherical pressure plate is an inner spherical body, and the periphery of the spherical pressure plate is provided with a threaded hole for connecting the clamp base;
the spherical clamping block is an outer spherical body, the spherical clamping block is embedded into the spherical pressure plate and is in an inner spherical surface, the center of the spherical clamping block is provided with a threaded hole for connecting the secondary clamps, the two secondary clamps clamp a sample, and the outer periphery of the two secondary clamps is provided with an unthreaded hole for connecting the spherical pressure plate;
The positioning screw is provided with a small segment of optical axis at the head end, the spherical surface pressure plate and the spherical surface clamping block are connected together by screwing the positioning screw into the optical hole, the spherical surface clamping block can rotate slightly in the spherical surface pressure plate, and the spherical surface pressure plate is fixed on the clamp base by screwing the screw into the threaded hole.
Furthermore, in the above automatic centering screw thread connection spherical clamp, the center of the clamp base is provided with an internal thread, and the two clamp bodies are respectively connected to the upper workbench and the lower workbench of the main machine through the screw thread.
compared with the prior art, the invention has the beneficial effects that:
According to the automatic centering threaded connection spherical clamp, the threaded hole is formed in the center of the spherical clamping block, so that a certain pair of secondary clamps can be connected to the spherical clamp, even if the upper and lower coaxiality of the connected certain pair of secondary clamps is poor, the two secondary clamps can be compensated through the micro-rotating spherical clamping block, the coaxiality of a sample connected by the certain pair of secondary clamps is good, the correctness of test data is ensured, the operation is simple, the installation and the disassembly are convenient, the structure is small and compact, an internal thread interface is reserved, the installation and the use of the secondary clamps are convenient, the time and the labor are saved, and the production efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a front view of the self-centering threaded connection spherical clamp of the present invention;
FIG. 2 is a front cross-sectional view of the spherical platen of the present invention;
FIG. 3 is a front cross-sectional view of the spherical clamp block of the present invention;
FIG. 4 is a front view of the set screw of the present invention;
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention is further described below with reference to the accompanying drawings:
The self-centering threaded connection spherical clamp as shown in figures 1-4 comprises two clamp bodies which are arranged up and down and opposite in position; the fixture body comprises a spherical pressure plate 4, a spherical clamping block 1, a positioning screw 2 and a fixture base 5; the spherical pressure plate 4 is an inner spherical body, and the periphery of the spherical pressure plate is provided with a threaded hole 12 for connecting the clamp base 5; the spherical clamping block 1 is an outer spherical body, is embedded into the spherical pressure plate 4 and is an inner spherical surface, the center of the spherical clamping block is provided with a threaded hole 10 for connecting the secondary clamps 8, the two secondary clamps 8 clamp a sample 9, and the outer periphery of the two secondary clamps 8 is provided with a unthreaded hole 11 for connecting the spherical pressure plate 4; the positioning screw 2 is provided with a small section of optical axis at the head end, the spherical surface pressing plate 4 and the spherical surface clamping block 1 are connected together by screwing the positioning screw 2 into the optical hole 11, the spherical surface clamping block 1 can rotate slightly in the spherical surface pressing plate 4, and the spherical surface pressing plate 4 is fixed on the clamp base 5 by screwing the screw 3 into the threaded hole 12. The center of the clamp base 5 is provided with internal threads, and the two clamp bodies are respectively connected to an upper workbench 7 and a lower workbench 6 of the main machine through threads.
the working principle of the invention is as follows:
the center of the spherical clamping block is provided with the threaded hole, so that a certain pair of secondary clamps can be connected to the spherical clamp, even if the vertical coaxiality of the connected certain pair of secondary clamps is poor, the coaxiality of a sample connected by the certain pair of secondary clamps can be ensured to be good by compensating the spherical clamping block through micro rotation, and the correctness of test data is ensured.
the threaded connection spherical clamp has the advantages of good centering performance, convenience in mounting and dismounting, small and compact structure, reserved internal thread interfaces, convenience in mounting and using of a secondary clamp, time and labor conservation, and improvement of production efficiency.
the above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (2)
1. The utility model provides an automatic threaded connection spherical clamp of centering which characterized in that: comprises two clamp bodies which are arranged up and down and opposite in position; the clamp body comprises a spherical pressing disc (4), a spherical clamping block (1), a positioning screw (2) and a clamp base (5);
The spherical pressure plate (4) is an inner spherical body, and the periphery of the spherical pressure plate is provided with a threaded hole (12) for connecting the clamp base (5);
The spherical clamping block (1) is an outer spherical body, the spherical clamping block is embedded into the spherical pressure plate (4) and is in an inner spherical surface, a threaded hole (10) is formed in the center of the spherical clamping block and is used for connecting the secondary clamps (8), the two secondary clamps (8) clamp a sample (9), and the outer periphery of the spherical clamping block is provided with a unthreaded hole (11) which is used for connecting the spherical pressure plate (4);
the positioning screw (2) is provided with a small segment of optical axis at the head end, the spherical surface pressing plate (4) and the spherical surface clamping block (1) are connected together by screwing the positioning screw (2) into the optical hole (11), the spherical surface clamping block (1) can rotate slightly in the spherical surface pressing plate (4), and the spherical surface pressing plate (4) is fixed on the clamp base (5) by screwing the screw (3) into the threaded hole (12).
2. The self-centering threaded connection spherical clamp of claim 1, wherein: the center of the clamp base (5) is provided with an internal thread, and the two clamp bodies are respectively connected to an upper workbench (7) and a lower workbench (6) of the main machine through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910972264.6A CN110549278A (en) | 2019-10-14 | 2019-10-14 | Automatic threaded connection spherical surface clamp of centering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910972264.6A CN110549278A (en) | 2019-10-14 | 2019-10-14 | Automatic threaded connection spherical surface clamp of centering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110549278A true CN110549278A (en) | 2019-12-10 |
Family
ID=68742741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910972264.6A Pending CN110549278A (en) | 2019-10-14 | 2019-10-14 | Automatic threaded connection spherical surface clamp of centering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110549278A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3107524A (en) * | 1961-03-01 | 1963-10-22 | Satec Corp | Test specimen holder mechanism and the like |
| JPH06160261A (en) * | 1992-11-21 | 1994-06-07 | Takenaka Komuten Co Ltd | Pressable or tensible force imparting jig for test machine |
| CN2220067Y (en) * | 1994-06-09 | 1996-02-14 | 西南交通大学 | Axial fatigue test chuck for high frequency fatigue tester |
| KR20000010353U (en) * | 1998-11-19 | 2000-06-15 | 이계철 | Anti-vibration spherical seat for compressive strength test |
| CN201900485U (en) * | 2010-11-25 | 2011-07-20 | 中国航天科工集团第三研究院第八三五八研究所 | Double-face centering and processing universal clamping head of infrared optical machine component |
| CN103674695A (en) * | 2013-12-09 | 2014-03-26 | 浙江大学 | Tensile test clamp for high-pressure hydrogen environment material testing machine |
| CN203688349U (en) * | 2013-12-20 | 2014-07-02 | 浙江大学 | Fatigue test fixture of high-pressure hydrogen environmental material testing machine |
| CN104567635A (en) * | 2014-12-23 | 2015-04-29 | 中国航空工业集团公司北京航空材料研究院 | Device for rapidly detecting coaxial degree of clamps of test machine |
| CN207248629U (en) * | 2017-09-07 | 2018-04-17 | 南京新维特试验仪器有限公司 | A kind of material stretch test machine |
| CN210938908U (en) * | 2019-10-14 | 2020-07-07 | 长春仟邦测试设备有限公司 | Automatic threaded connection spherical surface clamp of centering |
-
2019
- 2019-10-14 CN CN201910972264.6A patent/CN110549278A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3107524A (en) * | 1961-03-01 | 1963-10-22 | Satec Corp | Test specimen holder mechanism and the like |
| JPH06160261A (en) * | 1992-11-21 | 1994-06-07 | Takenaka Komuten Co Ltd | Pressable or tensible force imparting jig for test machine |
| CN2220067Y (en) * | 1994-06-09 | 1996-02-14 | 西南交通大学 | Axial fatigue test chuck for high frequency fatigue tester |
| KR20000010353U (en) * | 1998-11-19 | 2000-06-15 | 이계철 | Anti-vibration spherical seat for compressive strength test |
| CN201900485U (en) * | 2010-11-25 | 2011-07-20 | 中国航天科工集团第三研究院第八三五八研究所 | Double-face centering and processing universal clamping head of infrared optical machine component |
| CN103674695A (en) * | 2013-12-09 | 2014-03-26 | 浙江大学 | Tensile test clamp for high-pressure hydrogen environment material testing machine |
| CN203688349U (en) * | 2013-12-20 | 2014-07-02 | 浙江大学 | Fatigue test fixture of high-pressure hydrogen environmental material testing machine |
| CN104567635A (en) * | 2014-12-23 | 2015-04-29 | 中国航空工业集团公司北京航空材料研究院 | Device for rapidly detecting coaxial degree of clamps of test machine |
| CN207248629U (en) * | 2017-09-07 | 2018-04-17 | 南京新维特试验仪器有限公司 | A kind of material stretch test machine |
| CN210938908U (en) * | 2019-10-14 | 2020-07-07 | 长春仟邦测试设备有限公司 | Automatic threaded connection spherical surface clamp of centering |
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