Fixture identification mechanism
Technical field
The present invention relates to a kind of identification mechanism, and in particular to a kind of fixture identification mechanism.
Background technology
Fixture is, for fixing processing object, to be allowed to occupy correct position during machine-building, with receive construction or
The device of detection, also known as fixture.In a broad sense, any operation in technical process, for rapidly, easily and safely pacifying
The device of dress workpiece, all can be described as fixture.When workpiece is processed, the surface energy to make workpiece reaches the dimensions that drawing specifies, several
What shape and with the technical requirements such as the relative-position error of other surfaces, workpiece must be installed positioning before processing and be utilized
Fixture is clipped.
But, on the one hand, because the species of workpiece is varied, the type of fixture is also ever-changing, is processed different
Workpiece must use different fixtures, and some clamp-shapeds and structure are all quite similar, and these fixtures are installed in workbench
On when being processed, whether the fixture that operating personnel may not well distinguish used correct, if mistake, cannot be by
Required processing Workpiece clamping, it is necessary to changed, so brings certain impact to follow-up processing, greatly reduces entirety
Working (machining) efficiency, while using mistake fixture be clamped, plus man-hour, also easily cause the damage of workpiece.Therefore, exist
It is extremely important to the identification of fixture in processing workpiece fabrication, it is related to matching for workpiece to be machined and procedure.
On the other hand, multistation, multiple clip rotary table machining center are the development trends of machine tooling equipment, fixture
The increase of quantity necessarily causes the confusion that program is managed and complexity, so as to increasing maintenance cost and reducing production efficiency.Existing skill
In art, operator is also depended on mostly by rule of thumb to recognize, its process is loaded down with trivial details, expend the time, easily error, and then fixture occurs touch
Hit and equipment breakdown.
For the problems referred to above, Chinese invention patent CN102156861A discloses one kind《Clamp model recognition device》,
The bottom of workbench arranges position sensor, and flash lamp is connected with position sensor.After fixture is placed on the table, if
The marginal portion of fixture touches the relevant position on workbench, and corresponding position sensor transmits a signal to flash lamp,
Clamp-shaped is identified according to the flicker of the flash lamp of various combination, and is compared with the database in computer, quickly
The model of identification fixture.But the device recognizes fixture model by using contact position sensor, Long-Time Service is easily made
Into the abrasion of position sensor, service life is not only affected, also easily cause sensing insensitive.
The content of the invention
The technical problem to be solved is the present situation for prior art, there is provided a kind of sensitivity is high, using the longevity
The long fixture identification mechanism of life.
The present invention solve the technical scheme that adopted of above-mentioned technical problem for:A kind of fixture identification mechanism, including revolution work
Make platform and base, rotary table respect thereto can rotate;Rotary table diverse location is provided with multiple fixtures, and turns round work
Make platform to be provided with least two detection blocks and detection block can be driven to rotate together, base is provided with least two proximity switches, institute
State and be connected with proximity switch warning light;Detection block can rotate under rotary table drive relative to proximity switch, so as to select
The break-make of the control proximity switch of selecting property, and then by the warning light being connected with proximity switch recognizing fixture.
As further improvement, the fixture identification mechanism also include the valve body being arranged on the rotary table and
Valve element on the base, the valve body is located at the radial outside of the valve element, and can relative Spool rotating;The inspection
Survey block to be installed on valve body, the proximity switch is located at spool end;Valve body rotates with rotary table, so that described
Detection block and proximity switch motion for the relative rotation.
Improve again, the fixture identification mechanism also includes being located at the support of spool end, for installing proximity switch, so that
Proximity switch is firm to be located on valve element, in case proximity switch is subject to the shock effect of rotary table rotation and slides.
Improve again, the spool end is additionally provided with port plate, support is installed on port plate, further ensure to be close to and open
What is closed is firm.
Compared with prior art, advantages of the present invention:Detection block rotation is driven by rotary table, it is not necessary to which machinery connects
Any pressure is touched or applies, detection block can selectively control the break-make of proximity switch in rotary course, and make to be opened with being close to
Close connected warning light to light or extinguish, fixture is recognized with this, long service life, sensitivity is high.
Description of the drawings
Fig. 1 is the front view of the embodiment of the present invention;
Fig. 2 is the top view of the embodiment of the present invention;
Operating diagram when Fig. 3 is embodiment of the present invention state A;
Operating diagram when Fig. 4 is embodiment of the present invention state B;
Operating diagram when Fig. 5 is embodiment of the present invention state C;
Operating diagram when Fig. 6 is embodiment of the present invention state D.
Specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in figures 1 to 6, it is the preferred embodiments of the present invention.
Fixture identification mechanism includes rotary table 1, base 4, detection block 2 and proximity switch 3.Connect on proximity switch 3
There is warning light, the respect thereto 4 of rotary table 1 can rotate, and the diverse location of rotary table 1 is provided with multiple fixtures.
Valve element 41 is installed, the end of valve element 41 is provided with port plate 43, and on the port plate 43 support 42 is provided with base 4,
Proximity switch 3 is installed on the support 42.
Valve body 11 is installed, valve body 11 is located at the radial outside of valve element 41, and the relative valve element 41 of energy revolves on rotary table 1
Turn.Detection block 2 is installed on the diverse location of valve body 11, and in the preferred embodiment, detection block 2 is installed in the four of valve body 11
On individual position, wherein position a does not have a detection block 2, and position b detection block 2 is installed to the left, and it is right that position c detection block 2 is arranged on its
Side, position d detection blocks 2 are simultaneously installed in its left and right sides.
Valve body 11 rotates with rotary table 1, so as to drive detection block 2 to rotate, when detection block 2 is in proximity switch 3
Induction zone when proximity switch 3 turn on, connected warning light is lighted.In the present embodiment, proximity switch 3 has two, can
Fixture is recognized according to the different warning light combination for lighting.
The present embodiment recognizes that fixture is realized in the following way according to the different warning light combination for lighting:Valve body
11 rotate with rotary table 1, drive detection block 2 to rotate, and in state A, the warning light of two proximity switches 3 is not lighted,
Now corresponding tong marks are 1# fixtures;In state B, the warning light of two proximity switches 3 is lighted, now corresponding folder
Tool is labeled as 2# fixtures;The warning light of proximity switch 3 is lighted on the left of in state C, and the warning light of right side proximity switch 3 is not bright
Rise, now corresponding tong marks are 3# fixtures;The warning light of proximity switch 3 is not lighted on the left of in state D, and right side is close to and opens
The warning light for closing 3 is lighted, and now corresponding tong marks are 4# fixtures.When so recognizing different fixtures, various combination is had
Warning light light, operating personnel can recognize fixture according to the prompting of warning light.