CN201833232U - Broaching force test device - Google Patents
Broaching force test device Download PDFInfo
- Publication number
- CN201833232U CN201833232U CN2010205332528U CN201020533252U CN201833232U CN 201833232 U CN201833232 U CN 201833232U CN 2010205332528 U CN2010205332528 U CN 2010205332528U CN 201020533252 U CN201020533252 U CN 201020533252U CN 201833232 U CN201833232 U CN 201833232U
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- Prior art keywords
- broaching
- cutting force
- base
- force
- root posts
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Abstract
A broaching force test device comprises a workbench, a base and a force measurement support. The base is fixedly mounted on the workbench; at least two upright columns are mounted on the base, the upper ends of the upright columns are mounted on the force measurement support; a to-be-processed workpiece is placed on the force measurement support; through holes for allowing a broach to pass through are formed on the force measurement support, the base and the workbench; a strain sensor for detecting the broaching force is mounted on the outer cylindrical surface of at least one upright column and connected with a data acquisition card; and the data acquisition card is connected with a test center used for recording the change of the broaching force according to signals of the strain sensor and calculating frequency spectrum characteristics. The broaching force test device can record and analyze the change process of the broaching force in one-step broaching process and the status of the broaching force when the workpiece is cut by teeth of each broach and also can analyze the frequency spectrum characteristics of the broaching force.
Description
Technical field
The utility model relates to a kind of cutting force testing arrangement.
Background technology
Cutting force is the basis of research broaching process physical essence.Determine cutting force exactly, can be used for controlling broaching machine or broaching tool they are worked under the power of the best and machining condition.Cutting force is again the requisite initial data of design lathe, broaching tool and anchor clamps.Cutting force during broaching is influenced by several factors, as the character of machined material, the blunt degree of blade and the character of cooling and lubricating etc., also has the geometry of cutting output, cutting speed and broaching tool cutter tooth.In the existing cutting force testing arrangement, foil gauge is attached on the broaching tool, adopt the single armed connection of electric bridge, this moment, foil gauge very easily was subjected to the influence of broaching tool variation of temperature, and the single armed connection of electric bridge all can be affected the sensitivity of foil gauge, non-linear and temperature error, thereby influences the accuracy and the precision of test data.This method can not be tested the spectral characteristic of cutting force.
Summary of the invention
Not high and can not test the deficiency of the spectral characteristic of cutting force for the precision that overcomes existing cutting force measurement mechanism, the utility model provides a kind of cutting force testing arrangement, particularly a kind of change procedure that can in once broaching process, write down and analyze cutting force, and the cutting force situation during each broaching tool cutter tooth cutting workpiece, and can analyze the spectral characteristic of cutting force, thereby definite testing arrangement that influences the factor of cutting force variation.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of cutting force testing arrangement, comprise workbench, base and Dynamometric support, described base is fixedly mounted on the workbench, at least two root posts are installed on the described base, the upper end of at least two root posts is installed on the described Dynamometric support, place workpiece to be processed on the described Dynamometric support, described Dynamometric support, base and workbench are equipped with the through hole that passes for broaching tool; Install on the external cylindrical surface of at least one root post in order to detect the strain transducer of cutting force, described strain transducer and data acquisition card connection, described data collecting card is connected with the variation of writing down cutting force in order to the signal according to strain transducer and the test center of calculating spectral characteristic.
Further, described column has two, and two root posts are that the center is symmetrical set with the center line of described broaching tool, and strain transducer all is installed on the external cylindrical surface of two root posts.
Further again, described column has four, and four root posts are that the center is arranged in squares with the center line of described broaching tool, wherein on the external cylindrical surface of two root posts strain transducer are installed all.
The beneficial effects of the utility model mainly show: can write down and analyze the change procedure of cutting force and the spectral characteristic of cutting force in once broaching process, thereby determine to influence external factor and the internal factor that cutting force changes.
Description of drawings
Fig. 1 is the utility model schematic representation of apparatus.
Fig. 2 is broaching tool anchor clamps cutaway views.
Fig. 3 is the device for measuring force cutaway view.
Fig. 4 is a dynamometry column schematic diagram.
Fig. 5 is the installation diagram of dynamometry cylinder and Dynamometric support.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
With reference to Fig. 1 ~ Fig. 5, a kind of cutting force testing arrangement, comprise workbench 12, base 10 and Dynamometric support 7, described base 10 is fixedly mounted on the workbench 12, at least two root posts 8 are installed on the described base 10, the upper end of at least two root posts 8 is installed on the described Dynamometric support 7, places workpiece to be processed 6 on the described Dynamometric support 7, and described Dynamometric support 7, base 10 and workbench 12 are equipped with the through hole that passes for broaching tool 2; Install on the external cylindrical surface of at least one root post in order to detect the strain transducer 3 of cutting force, described strain transducer 3 is connected with data collecting card 4, and described data collecting card 4 is connected with the variation of writing down cutting force in order to the signal according to strain transducer and the test center 5 of calculating spectral characteristic.
Described column 8 has two, and two root posts are that the center is symmetrical set with the center line of described broaching tool, and strain transducer all is installed on the external cylindrical surface of two root posts.
Described column 8 has four, and four root posts are that the center is arranged in squares with the center line of described broaching tool, wherein on the external cylindrical surface of two root posts strain transducer are installed all.
Certainly, column 8 also can be selected three, perhaps five etc.;
Present embodiment is applicable to the occasion of the cutting force of internal broaching in the test piece, example interior internal broaching process as shown in Figure 3, the broaching force measurement of the internal keyway process of the various cross sectional shapes that also can be adapted to broach etc.
The strain transducer of present embodiment adopts force cell PCB704B02 foil gauge, and it sticks on the plane on described column surface.Strain transducer 3 is connected with LMS SCADAS III front end 4 based on LMS Test.Lab test macro, and front end 4 is connected with test center 5 in order to the situation of record broaching process cutting force.
A kind of cutting force testing arrangement of present embodiment comprises broaching tool anchor clamps 1, broaching tool 2, workpiece to be processed part 6, strain transducer 3, data collecting card 4 and test center 5, and the test center 5 of present embodiment is mobile workstation DELL M90;
Described data collecting card model is a LMS SCADAIII data collecting card; LMS test.lab software is installed on the described mobile workstation.Described force cell PCB704B02 foil gauge is attached on the described cylindrical column 8, and the foil gauge principal strain directions is along described column longitudinal centre line, thus when pasting also longitudinally centerline direction paste.
Described column 8 connects by screw 9 screw threads for fastening with base 10, connects by screw threads for fastening between described base and the workbench, and described column 8 is as the dynamometry sensing element.Described Dynamometric support 7 has circular hole, and workpiece to be processed is positioned on the Dynamometric support 7, and the endoporus and the endoporus on the Dynamometric support of workpiece to be processed 6 are positioned on the same axis, and broaching tool 2 from up to down moves along common axis line, the endoporus of processing workpiece to be processed 6.
The course of work is: described workpiece to be processed is installed on the Dynamometric support of broaching machine workbench, described strain transducer 3 is fixed on the column 8, the holding wire of described strain transducer 3 is connected to data collecting card 4, described data collecting card 4 is connected in the test center 5, operation LMS test.lab software in the described test center 5, commissioning device, demarcate described strain transducer 3, input processing instruction on described broaching machine, move described broaching machine, analyze data with described LMS test.lab software records.
The described content of this specification embodiment only is enumerating the way of realization of utility model design; protection domain of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection domain of the present utility model also reach in those skilled in the art according to the utility model design the equivalent technologies means that can expect.
Claims (3)
1. cutting force testing arrangement, it is characterized in that: described cutting force testing arrangement comprises workbench, base and Dynamometric support, described base is fixedly mounted on the workbench, at least two root posts are installed on the described base, the upper end of at least two root posts is installed on the described Dynamometric support, place workpiece to be processed on the described Dynamometric support, described Dynamometric support, base and workbench are equipped with the through hole that passes for broaching tool; Install on the external cylindrical surface of at least one root post in order to detect the strain transducer of cutting force, described strain transducer and data acquisition card connection, described data collecting card is connected with the variation of writing down cutting force in order to the signal according to strain transducer and the test center of calculating spectral characteristic.
2. cutting force testing arrangement as claimed in claim 1 is characterized in that: described column has two, and two root posts are that the center is symmetrical set with the center line of described broaching tool, and strain transducer all is installed on the external cylindrical surface of two root posts.
3. cutting force testing arrangement as claimed in claim 1 is characterized in that: described column has four, and four root posts are that the center is arranged in squares with the center line of described broaching tool, wherein on the external cylindrical surface of two root posts strain transducer are installed all.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205332528U CN201833232U (en) | 2010-09-17 | 2010-09-17 | Broaching force test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205332528U CN201833232U (en) | 2010-09-17 | 2010-09-17 | Broaching force test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201833232U true CN201833232U (en) | 2011-05-18 |
Family
ID=44003328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205332528U Expired - Fee Related CN201833232U (en) | 2010-09-17 | 2010-09-17 | Broaching force test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201833232U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430960A (en) * | 2011-11-07 | 2012-05-02 | 吉林大学 | Measuring and recording device for tool pulling force and tool inserting force of manipulator |
| ITTO20120917A1 (en) * | 2012-10-17 | 2014-04-18 | S I B Soc It Brocce Side Ral S R L | BROCCIA AND RELATIVE BROACHING MACHINE |
-
2010
- 2010-09-17 CN CN2010205332528U patent/CN201833232U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430960A (en) * | 2011-11-07 | 2012-05-02 | 吉林大学 | Measuring and recording device for tool pulling force and tool inserting force of manipulator |
| CN102430960B (en) * | 2011-11-07 | 2014-04-02 | 吉林大学 | Measuring and recording device for tool pulling force and tool inserting force of manipulator |
| ITTO20120917A1 (en) * | 2012-10-17 | 2014-04-18 | S I B Soc It Brocce Side Ral S R L | BROCCIA AND RELATIVE BROACHING MACHINE |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20130917 |