CN202393660U

CN202393660U - Material torsion testing machine

Info

Publication number: CN202393660U
Application number: CN2011205707006U
Authority: CN
Inventors: 陈中敢; 陈建会
Original assignee: ZHEJIANG SANMEN COUNTY SHITAI INDUSTRIAL CO LTD
Current assignee: ZHEJIANG SANMEN COUNTY SHITAI INDUSTRIAL CO LTD
Priority date: 2011-12-31
Filing date: 2011-12-31
Publication date: 2012-08-22
Anticipated expiration: 2021-12-31

Abstract

The utility model belongs to the field of material testing machines and relates to a material torsion testing machine. A driving column and an upright column are arranged on a base, wherein the upper end of the upright column is connected with a top beam, a movable cross beam is arranged between the top beam and the base, fixed seats for a tested workpiece are respectively arranged on the base and the movable cross beam or the movable cross beam and the top beam, a rotating disc is arranged between the two fixed seats, fixing positions are respectively arranged at the upper end and the lower end of the rotating disc, a sensor mounting cavity is arranged at the middle part of the two fixing positions, an rotation part of an angle sensor is fixedly arranged on the rotating disc on one side of the sensor mounting cavity, a cantilever of a mounting frame of a table top on the base extends into the sensor mounting cavity for being equipped with a fixing part for the angle sensor in an impending manner, a motor is fixedly arranged on a vertical beam on one side of the base, the motor and the rotating disc are connected through a steel cable or a chain, a left traction force sensor and a right traction force sensor are connected on the steel cable or the chain in series, and the traction force sensors and the angle sensor are connected with a computer through single wires. The material torsion testing machine has the advantages of high testing precision and low equipment cost, and is suitable for high-precision detection of the workpieces.

Description

A kind of material torsion testing machine

Technical field

The utility model belongs to the Material Testing Machine technical field, is specifically related to a kind of material torsion testing machine that utilizes simple device workpiece to be carried out high precision torsional deflection measurement amount.

Background technology

At present, the Material Testing Machine of using in the society roughly has two major types: one type is accurate, though its measuring accuracy of the Material Testing Machine of the type is higher, function is many, and its complex structure, operation easier is big, and cost is high, and general small business is difficult to burden; Two types is plain edition; The Material Testing Machine of the type simple in structure, cost is low, but its measuring accuracy is poor, error is big; Test inaccurate; Can not satisfy request for utilization, its main cause is: because reverse, the strength of tension and compression tests is bigger, all stressed members such as base, worktable, drive post, guidepost, back timber connection, moved cross beam are reversing, plastic yield in various degree all can occur in the process of tension and compression workpiece; The error of the true strain amount that comprehensively causes workpiece of these plastic yield and the deflection of demonstration is big; And the precision of the Material Testing Machine of regular grade is lower, spends less money, carries out the active demand that high-precision material test becomes domestic consumer with common Material Testing Machine.

Summary of the invention

The purpose of the utility model provides the material torsion testing machine that a kind of accuracy of detection is high, equipment cost is low.

The purpose of the utility model is achieved in that

A kind of material torsion testing machine; Base is provided with drive post and column; Drive post is parallel to each other with column and vertical be provided with and perpendicular to the upper table surface of base, the upper end of column is connected with back timber, is provided with moved cross beam between back timber and the base; The drive post that moved cross beam is driven by propulsion system drives it and moves up and down; Be respectively arranged with the holder that measured workpiece is installed on the relative face of base and moved cross beam or on the moved cross beam face relative with back timber, be provided with rotating disk between two holders, the upper and lower side of rotating disk is respectively arranged with the fixed bit that measured workpiece is installed; The middle part of two fixed bits is provided with the angular transducer installation cavity; Be fixed with the angular transducer rotatable parts on the rotating disk of angular transducer installation cavity one side, the location has erecting frame, the cantilever of erecting frame to stretch into the unsettled angular transducer fixed part that is equipped with in the sensor installation cavity on the upper table surface of base; The angular transducer rotatable parts are relative with the angular transducer fixed part; On the upright beam of base one side, be fixed with motor, the two ends of the both sides suit of the runner of driven by motor or the cable wire of fixed connection or chain are connected to the both sides of rotating disk, left and rightly respectively on the cable wire of runner both sides or chain are connected in series with left and right drawbar load sensing mechanism; Left and right drawbar load sensing mechanism is connected with computing machine through signal wire with angular transducer, by the curve map and the data correlative value of trailed torsion of computer stored, demonstration or output products and windup-degree.

Above-mentioned propulsion system are hydraulic cylinder, and described drive post drives it by the piston rod of hydraulic cylinder and moves up and down and then drive moved cross beam and move up and down.

Above-mentioned propulsion system are oil motor or motor, and described drive post is a leading screw, and the upper end and the back timber of leading screw are rotationally connected, and oil motor or motor-driven leading screw rotate and then drive moved cross beam and move up and down.

The both sides of above-mentioned base are provided with a drive post and a root post.

Above-mentioned erecting frame stands up on the upper table surface of base, and the bottom of erecting frame is provided with erecting frame is fixedly positioning the magnetic patch on the base upper table surface.

The adjustable height of the cantilever of above-mentioned erecting frame on erecting frame.

Be connected with backstay between above-mentioned upright beam and the base.

The utility model is compared the outstanding and beneficial technical effects of prior art:

1, the utility model is owing to directly be positioned at angular transducer on the upper table surface and rotating disk of base; All cumulative errors of equipment stressed member have been eliminated; Utilize common Material Testing Machine accurately to test to the torsional rigidity of product or material; And the torsional rigidity that can make test product or material under compression or the state that stretches, carry out product or material accurately tests, and test accurately reaches micron order;

2, the utility model inputs to computing machine with the measuring-signal of angular transducer and drawbar load sensing mechanism; The torsion that computing machine can directly store, shows or export workpiece when receiving torsion and the curve map and the data correlative value of torsional deflection amount; Can search the torsional deflection value under arbitrary power value on computers; Convenient, fast, directly perceived, make test process realize robotization, intellectuality, can well control product quality.

3, the utility model is simple in structure, and assembling is quick, and is with low cost, is applicable to the torsional rigidity test of the common material torsion testing machine being carried out carrying out after the technological improvement product or the material of micron order.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the measuring principle synoptic diagram of the utility model.

Among the figure: the 1-back timber; The 2-moved cross beam; The 3-base; The 31-upper table surface; The 4-motor; The 41-runner; The left and right drawbar load sensing mechanism of 5-; The 6-cross bar; 7-founds beam; 8-cable wire or chain; The 9-erecting frame; The 91-vertical rod; The 92-bottom; The 921-magnetic patch; The 93-cantilever; The 10-holder; The 11-measured workpiece; The 12-rotating disk; 121-sensor installation cavity; The 13-fixed bit; The 14-leading screw; The 15-column; 16-angular transducer rotatable parts; 17-angular transducer fixed part.

Embodiment

The present invention is further described with specific embodiment below in conjunction with accompanying drawing, referring to Fig. 1-2:

A kind of material torsion testing machine; Base 3 is provided with drive post 14 and column 15; Drive post 14 is parallel to each other with column 15 and vertical be provided with and perpendicular to the upper table surface 31 of base 3, the upper end of column 15 is connected with back timber 1, is provided with moved cross beam 2 between back timber 1 and the base 3; The drive post 14 that moved cross beam 2 is driven by propulsion system drives it and moves up and down; Be respectively arranged with between holder 10, two holders 10 that measured workpiece 11 is installed on the relative face of base 3 and moved cross beam 2 or on the relative face of moved cross beam 2 and back timber 1 and be provided with rotating disk 12, the upper and lower side of rotating disk 12 is respectively arranged with the fixed bit 13 that measured workpiece 11 is installed; The middle part of two fixed bits 13 is provided with sensor installation cavity 121; Be fixed with angular transducer rotatable parts 16 on the rotating disk 12 of sensor installation cavity 121 1 sides, the location has erecting frame 9, the cantilever 93 of erecting frame 9 to stretch into the unsettled angular transducer fixed part 17 that is equipped with in the sensor installation cavity 121 on the upper table surface 31 of base 3; Angular transducer rotatable parts 16 are set up with angular transducer fixed part 17 relatively; On the upright beam 7 of base 3 one sides, be fixed with motor 4, the two ends of the both sides suit of the runner 41 that motor 4 drives or the cable wire of fixed connection or chain 8 are connected to the both sides of rotating disk 12, on the cable wire of runner 41 both sides or chain 8, divide the left and right left and right drawbar load sensing mechanism 5 that is connected in series with; Left and right drawbar load sensing mechanism 5 is connected with computing machine through signal wire with angular transducer (being made up of with the angular transducer fixed part the angular transducer rotation section); By the curve map and the data correlative value of trailed torsion of computer stored, demonstration or output products and windup-degree, increase the purpose of rotating disk 12: the one, can measure the torsion of N/M, the 2nd, increase the arm of force of twisting measured workpiece; So that increase moment makes the less moment of motor output apply bigger moment to measured workpiece.

Above-mentioned propulsion system are hydraulic cylinder, and described drive post drives it by the piston rod of hydraulic cylinder and moves up and down and then drive moved cross beam 2 and move up and down.

Above-mentioned propulsion system are oil motor or motor; Described drive post is a leading screw 14; The upper end of leading screw 14 and back timber 1 are rotationally connected, and oil motor or motor-driven leading screw 14 rotates and then drive moved cross beam 2 and move up and down so that clamp or unclamp measured workpiece 11 or measured workpiece 11 is applied preload force.

The both sides of above-mentioned base 3 are provided with a drive post and a root post 15.

Above-mentioned erecting frame 9 stands up on the upper table surface 31 of base 3, and the bottom of erecting frame 9 is provided with the magnetic patch 921 of erecting frame 9 fixed bits on base 3 upper table surfaces 31, carries out the test of other function with the convenient 9 pairs of measured workpieces of erecting frame that move.

The adjustable height of cantilever 93 on erecting frame 9 of above-mentioned erecting frame 9; Described adjustable height: can utilize bolt or bolt and clamping plate in the vertical rod 91 of erecting frame 9, to adjust or utilize elastic component adjustment; So that to the measurement of the measured workpiece of differing heights; Utilize any known technology all can carry out the adjustment of height, detail no longer one by one at this.

Be connected with backstay 6 between above-mentioned upright beam 7 and the base 3, so that the distance between upright beam 7 in location and the base 3 is convenient to motor 4 through cable wire or 8 pairs of rotating disk 12 application of forces of chain.

The foregoing description is merely the preferred embodiment of the utility model, is not the protection domain that limits the utility model according to this, so: the equivalence that all structures according to the utility model, shape, principle are done changes, and all should be covered by within the protection domain of the utility model.

Claims

1. material torsion testing machine; Base is provided with drive post and column; Drive post is parallel to each other with column and vertical be provided with and perpendicular to the upper table surface of base, the upper end of column is connected with back timber, is provided with moved cross beam between back timber and the base; The drive post that moved cross beam is driven by propulsion system drives it and moves up and down; It is characterized in that: be respectively arranged with the holder that measured workpiece is installed on the relative face of base and moved cross beam or on the moved cross beam face relative with back timber, be provided with rotating disk between two holders, the upper and lower side of rotating disk is respectively arranged with the fixed bit that measured workpiece is installed; The middle part of two fixed bits is provided with the angular transducer installation cavity; Be fixed with the angular transducer rotatable parts on the rotating disk of angular transducer installation cavity one side, the location has erecting frame, the cantilever of erecting frame to stretch into the unsettled angular transducer fixed part that is equipped with in the sensor installation cavity on the upper table surface of base; The angular transducer rotatable parts are relative with the angular transducer fixed part; On the upright beam of base one side, be fixed with motor, the two ends of the both sides suit of the runner of driven by motor or the cable wire of fixed connection or chain are connected to the both sides of rotating disk, left and rightly respectively on the cable wire of runner both sides or chain are connected in series with left and right drawbar load sensing mechanism; Left and right drawbar load sensing mechanism is connected with computing machine through signal wire with angular transducer, by the curve map and the data correlative value of trailed torsion of computer stored, demonstration or output products and windup-degree.

2. a kind of material torsion testing machine according to claim 1 is characterized in that: described propulsion system are hydraulic cylinder, and described drive post drives it by the piston rod of hydraulic cylinder and moves up and down and then drive moved cross beam and move up and down.

3. a kind of material torsion testing machine according to claim 1; It is characterized in that: described propulsion system are oil motor or motor; Described drive post is a leading screw, and the upper end and the back timber of leading screw are rotationally connected, and oil motor or motor-driven leading screw rotate and then drive moved cross beam and move up and down.

4. a kind of material torsion testing machine according to claim 1 is characterized in that: the both sides of described base are provided with a drive post and a root post.

5. a kind of material torsion testing machine according to claim 1 is characterized in that: described erecting frame stands up on the upper table surface of base, and the bottom of erecting frame is provided with erecting frame is fixedly positioning the magnetic patch on the base upper table surface.

6. a kind of material torsion testing machine according to claim 1 is characterized in that: the adjustable height of the cantilever of described erecting frame on erecting frame.

7. according to each described a kind of material torsion testing machine of claim 1-5, it is characterized in that: be connected with backstay between described upright beam and the base.