CN207779824U - A kind of plastic plate mechanics properties testing auxiliary tool - Google Patents
A kind of plastic plate mechanics properties testing auxiliary tool Download PDFInfo
- Publication number
- CN207779824U CN207779824U CN201820138223.8U CN201820138223U CN207779824U CN 207779824 U CN207779824 U CN 207779824U CN 201820138223 U CN201820138223 U CN 201820138223U CN 207779824 U CN207779824 U CN 207779824U
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- moving jaw
- long axis
- galley proof
- bearing block
- 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.)
- Expired - Fee Related
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model is related to a kind of plastic plate mechanics properties testing auxiliary tools.Galley proof and reference plane out of plumb may be led to by placing the mode of plastics galley proof on cupping machine using craft.When the utility model is used, the top half of the galley proof of experiment is clamped on movable clamping head, so that the center of gravity of galley proof is in retaining part or less, since movable clamping head can be rotated freely around rotary shaft, under gravity, movable clamping head can rotate adjustment automatically so that the central axes of galley proof are perpendicular to reference plane.Galley proof is sent at the upper clamp of testing machine by hand-held handle, clamps the clamp of testing machine, it can be ensured that galley proof is mutually perpendicular to reference plane.The utility model improves test accuracy using simply can ensure that galley proof is vertical with reference plane.Operating process is not necessarily to special experimental technology.
Description
Technical field
The utility model is related to a kind of auxiliary tools of Injection Industry, and in particular to a kind of plastic plate mechanics properties testing
Use auxiliary tool.
Background technology
Tension test can measure a series of intensity indexs and plasticity index of material.Intensity typically refers to material in outer masterpiece
Flexible deformation, the ability of plastic deformation and fracture are generated with lower resistance.Material do not increase when bearing tensile load, when load and
Continue to that there is a phenomenon where be obviously plastically deformed to be called surrender.Stress when surrender is generated, claims yield point or physics surrender strong
Degree.
It is essential in injection molding or plastic processing industry, the mechanics properties testing of plastics, wherein drawing plastics
It is exactly a basic mechanics detection process to stretch experiment.It does tension test and is to check every tensile property index of plastics,
The height of index has been largely fixed the applicable situation of plastics, also can directly react formula and technique etc. to plastic material
The influence of energy.
Current cupping machine is also material stretch test machine, universal tensile strength-testing machine, is that collection computer controls, certainly
The mechanics detection device of new generation that dynamic measurement, data acquisition, screen display, test result processing are integrated.
The specific detection process that stretches is such：
（1）There is upper and lower two pairs of clamps, two pairs of clamps to clamp the upper and lower side of bar plastic sample respectively in cupping machine.
（2）General lower pair of clamp is fixed, and a pair of of clamp of top is equipped with haulage gear, and haulage gear is acted to bar shaped
Plastic sample carries out pulling action.
（3）Testing machine is additionally provided with the testing agency of stress and strain, and during stretching, machine, which synchronizes, to be detected and analyze
The variation relation of stress and strain obtains every mechanical property of material.
The pedestal benchmark of testing machine is strict with level when mounted, and the direction of drawing process must be perpendicular to pedestal.
During current experiment, needs people that bar plastic sample is put into clamp with hand and fix.In mechanics detection industry,
Same sample tests hands- operation at same to different laboratory technicians, and the numerical value detected may be different.The error of generation
Reason be test operating process whether specification.
During error generates, greatly the reason is that since operator fails so that sample is vertical in folder sample process
Directly in reference plane.The process of manual lofting needs very high skill, with reference to attached drawing 1, in left and right（The directions A-A in Fig. 1）Direction
On, since upper clamp 6, lower clamp 7 are in advance all by calibration, after two pairs of clamps clamp, galley proof 8 is in left and right directions（A- in Fig. 1
The directions A）Upper being perpendicular to reference plane 5 certainly, this is not necessarily to artificial interference；In front-rear direction（The directions B-B in Fig. 1）On,
There may be errors when human hand work placement galley proof 8, lead to the central axes of galley proof 8 in left and right directions（The directions B-B in Fig. 1）It is upper with
5 out of plumb of reference plane.
And test requirements document galley proof 8 keeps vertical on left and right and former and later two dimensions with reference plane 5, otherwise stretches
The stress and strain of journey is inaccurate by detection, leads to test error.At present in test operation, artificial operative skill is generally relied on
The verticality of galley proof 8 is ensured with operating experience.
Utility model content
The purpose of this utility model is to provide a kind of plastic plate mechanics properties testing auxiliary tools, to solve the above-mentioned back of the body
The problem of being mentioned in scape technology.
To achieve the above object, the utility model provides the following technical solutions：A kind of plastic plate mechanics properties testing is with auxiliary
Assistant engineer has, including handle portion and movable clamping head；The handle portion includes handle, terminal pad and rotary shaft；The company
The end that disk is fixedly connected on handle is connect, the rotary shaft is fixedly connected on the center of terminal pad；The movable clamping head
Including base plate, long axis, left moving jaw and right moving jaw；Bearing block there are one being set on the center position of base plate, it is described
There are one ball bearing, ball bearing is mounted on bearing block the center position set of long axis；One is also provided on the base plate
The root of straight, the left moving jaw is fixedly connected with a left slider, and the root of the right moving jaw is fixedly connected
One right sliding block, the left slider and right sliding block are fitted in straight；Length at left and right sides of the bearing block
Equal vehicle has screw thread on axis, and the space width of both sides screw thread is identical, hand of spiral is opposite；Left spiral shell is screwed on long axis on the left of bearing block
Mother is screwed with right nut on the long axis on the right side of bearing block, and the long axis end on the left of bearing block is fixedly connected with left-handed button, and bearing block is right
The long axis end of side is fixedly connected with dextrorotation button；The left nut is fixedly connected on left moving jaw, the right nut
It is fixedly connected on right moving jaw；It is opened at the top of the base plate there are one axis hole is worn, the rotary shaft, which is fitted to, wears
On axis hole.
The Operational Mechanisms of the utility model are as follows：The top half of the galley proof of experiment is clamped on movable clamping head,
So that the center of gravity of galley proof is in retaining part hereinafter, since movable clamping head can be rotated freely around rotary shaft, in the work of gravity
Under, movable clamping head can rotate adjustment automatically so that the central axes of bar-shaped sample are perpendicular to ground.Galley proof is sent to by hand-held handle
At the clamp of testing machine, the clamp of testing machine is clamped, it can be ensured that bar-shaped sample is mutually perpendicular to reference plane.
The clamping process of movable clamping head is such, and bar-shaped sample top half is put into left moving jaw and right adjustable clamp
Between mouthful, twisting knob drives long axis rotation, due to the direction of the screw thread at long axis both ends be it is opposite, left nut on long axis and
The direction of motion of right nut is also opposite, and when twisting knob clamps, left nut and right nut go in the same direction, left nut and right spiral shell
Mother stock does not drive left moving jaw and right moving jaw close to each other until galley proof is clamped；Straight, left slider and right cunning
Block plays the role of constraining left moving jaw and right moving jaw travel track.Since the space width of long axis both ends screw thread is identical,
So the gait of march of left moving jaw and right moving jaw is also identical, it can be ensured that galley proof is sandwiched in the center of movable clamping head
Position.
Preferably, the straight is dovetail shaped sliding slot, and the left slider and right sliding block are dovetail shaped sliding block.
Preferably, the base plate, left moving jaw, right moving jaw are made of diel of steel.
To sum up, the technological merit of the utility model is：
（1）It may insure that galley proof is vertical with reference plane on the front-rear direction of testing machine clamp, prevented stretching experiment mistake
Journey measurement error caused by sample out of plumb.
（2）It can be operated without experience and technology, it is simple using process.
Description of the drawings
Fig. 1 is that galley proof clamps schematic diagram in testing machine in the prior art；
Fig. 2 is the structural schematic diagram that the utility model is implemented；
Fig. 3 is the structural decomposition diagram of the utility model；
Fig. 4 is the schematic diagram for clamping galley proof on sample machine using the utility model.
Specific implementation mode
The technical solution of this patent is described in more detail With reference to embodiment.With reference to 2 He of attached drawing
Attached drawing 3, a kind of plastic plate mechanics properties testing auxiliary tool, including handle portion 1 and movable clamping head 2；The handle portion 1
Including handle 11, terminal pad 12 and rotary shaft 13；The terminal pad 12 is fixedly connected on the end of handle 11, the rotation
Shaft 13 is fixedly connected on the center of terminal pad 12；The movable clamping head 2 includes base plate 21, long axis 27, left adjustable clamp
Mouth 23 and right moving jaw 24；Bearing block 22 there are one being set on the center position of base plate 21, the center position of the long axis 27
There are one ball bearing, ball bearings to be mounted on bearing block 22 for set；Straight line sliding slot is also provided on the base plate 21
211, the root of the left moving jaw 23 is fixedly connected with a left slider 232, and the root of the right moving jaw 24, which is fixed, to be connected
A right sliding block 242 is connect, the left slider 232 and right sliding block 242 are fitted in straight 211；The bearing
Vehicle has screw thread on the long axis 27 of 22 left and right sides of seat, and the space width of both sides screw thread is identical, hand of spiral is opposite；Bearing block 22
It is screwed with left nut 231 on the long axis 27 in left side, right nut 241,22 left side of bearing block are screwed on the long axis 27 on 22 right side of bearing block
27 end of long axis be fixedly connected with left-handed button 25,27 end of long axis on 22 right side of bearing block is fixedly connected with dextrorotation button 26；Institute
The left nut 231 stated is fixedly connected on left moving jaw 23, and the right nut 241 is fixedly connected on right moving jaw 24
On；The top of the base plate 21 is opened there are one axis hole 212 is worn, and the rotary shaft 13, which is fitted to, wears on axis hole 212.
The Operational Mechanisms of the utility model are as follows：With reference to attached drawing 4, the top half of the galley proof 8 of experiment is clamped in work
On dynamic clamping head 2 so that the center of gravity of galley proof 8 is in retaining part hereinafter, since movable clamping head 2 can surround rotary shaft 13 freely
Rotation, under gravity, movable clamping head 2 can rotate adjustment automatically so that the central axes of galley proof 8 are perpendicular to reference plane.
Galley proof 8 is sent at the upper clamp 6 of testing machine by hand-held handle 11, clamps the clamp of testing machine, it can be ensured that galley proof 8 and reference plane
It is mutually perpendicular to.
The clamping process of movable clamping head 2 is such, and 8 top half of galley proof is put into left moving jaw 23 and right activity
Between jaw 24, twists left-handed button 25 or dextrorotation button 26 drives long axis 27 to rotate, since the direction of the screw thread at 27 both ends of long axis is
Opposite, the direction of motion of left nut 231 and right nut 241 on long axis 27 is also opposite, when twisting knob clamps, left spiral shell
Mother 231 and right nut 241 go in the same direction, and left nut 231 and right nut 241 drive left moving jaw 23 and right moving jaw respectively
24 is close to each other until galley proof 8 is clamped；Straight 211, left slider 232 and right sliding block 242 play the left moving jaw of constraint
23 and right moving jaw 24 travel track effect.Since the space width of 27 both ends screw thread of long axis is identical, so left adjustable clamp
The gait of march of mouth 23 and right moving jaw 24 is also identical, it can be ensured that galley proof 8 is sandwiched in the center position of movable clamping head 2.
Above-mentioned straight is dovetail shaped sliding slot, and the left slider 232 and right sliding block 242 are dovetail shaped sliding block.
Above-mentioned base plate 21, left moving jaw 23, right moving jaw 24 are made of diel of steel.
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, one skilled in the relevant art within the scope of knowledge, can also be under the premise of not departing from this patent objective
It makes a variety of changes.It should be understood that all other specific embodiments based on the utility model are new in this practicality
Within the protection domain of type.
Claims (3)
1. a kind of plastic plate mechanics properties testing auxiliary tool, it is characterised in that：Including handle portion and movable clamping head；It is described
Handle portion include handle, terminal pad and rotary shaft；The terminal pad is fixedly connected on the end of handle, the rotation
Axis is fixedly connected on the center of terminal pad；The movable clamping head includes base plate, long axis, left moving jaw and right adjustable clamp
Mouthful；Bearing block there are one being set on the center position of base plate, there are one ball bearing, ball axis for the center position set of the long axis
It holds on bearing block；Straight line sliding slot is also provided on the base plate, the root of the left moving jaw is fixedly connected
The root of one left slider, the right moving jaw is fixedly connected with a right sliding block, and the left slider and right sliding block coordinate
In straight；Equal vehicle has a screw thread on long axis at left and right sides of the bearing block, and the space width of both sides screw thread it is identical,
Hand of spiral is opposite；It is screwed with left nut on long axis on the left of bearing block, right nut, bearing block are screwed on the long axis on the right side of bearing block
The long axis end in left side is fixedly connected with left-handed button, and the long axis end on the right side of bearing block is fixedly connected with dextrorotation button；The left side
Nut is fixedly connected on left moving jaw, and the right nut is fixedly connected on right moving jaw；The top of the base plate
Portion is opened there are one axis hole is worn, and the rotary shaft, which is fitted to, wears on axis hole.
2. a kind of plastic plate mechanics properties testing auxiliary tool according to claim 1, it is characterised in that：Described is straight
Line sliding slot is dovetail shaped sliding slot, and the left slider and right sliding block are dovetail shaped sliding block.
3. a kind of plastic plate mechanics properties testing auxiliary tool according to claim 1, it is characterised in that：The base
Seat board, left moving jaw, right moving jaw are made of diel of steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820138223.8U CN207779824U (en) | 2018-01-27 | 2018-01-27 | A kind of plastic plate mechanics properties testing auxiliary tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820138223.8U CN207779824U (en) | 2018-01-27 | 2018-01-27 | A kind of plastic plate mechanics properties testing auxiliary tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207779824U true CN207779824U (en) | 2018-08-28 |
Family
ID=63210814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820138223.8U Expired - Fee Related CN207779824U (en) | 2018-01-27 | 2018-01-27 | A kind of plastic plate mechanics properties testing auxiliary tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207779824U (en) |
-
2018
- 2018-01-27 CN CN201820138223.8U patent/CN207779824U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180828 Termination date: 20200127 |