CN202213073U

CN202213073U - Fixture of automatic slicing type CT machine

Info

Publication number: CN202213073U
Application number: CN201120290036XU
Authority: CN
Inventors: 汪远银; 王香; 于丹
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-11
Filing date: 2011-08-11
Publication date: 2012-05-09
Anticipated expiration: 2021-08-11

Abstract

The utility model discloses the fixture of an automatic slicing type CT machine, which comprises a housing and an upper cover. The upper cover is provided with a displacement sensor, a pressure adjustment assembly and a proximity sensor. A displacement sensor separation blade is arranged below the displacement sensor. The displacement sensor separation blade is connected with a slide block through a guide rod and the slide block is used for clamping workpieces. The lower end of the displacement sensor is in contact with the displacement sensor separation blade and is used for measuring the thickness of a cutting workpiece. The lower end of the pressure adjustment assembly is in contact with the displacement sensor separation blade. According to the utility model, the flexible loading effect is realized through the pressure adjustment assembly and the active force applied on a workpiece can be autonomously adjusted according to cutting requirements. The cutting position of a workpiece is sensed through the high-precision displacement sensor, so that the cutting precision and the cutting efficiency are improved. Meanwhile, the cutting state of a workpiece is sensed through the proximity sensor. Therefore, the damages of the high-precision displacement sensor and the fixture caused by the overlarge cutting stroke during the cutting process are avoided. The fixture of an automatic slicing type CT machine has the advantages of easy fabrication and low cost and is suitable for further popularization and application.

Description

A kind of anchor clamps of auto slice formula CT machine

Technical field

The utility model relates to a kind of anchor clamps, is specifically related to a kind ofly can improve cutting efficiency and cutting accuracy, thereby and the anchor clamps of the auto slice formula CT machine that safeguard protection avoids defective work piece can be provided.

Background technology

At present, be the most frequently used internal imaging method based on the imaging of X-ray scanning, the CT machine of various models also is the most conventional checkout equipments in fields such as medical inspection, industrial detection.CT is that the English of " computed tomography machine " or " computed tomography " is called for short; Being since roentgen in 1895 finds the X line, to have broken through in the maximum aspect the X radiodiagnosis x, is the computer control technology of develop rapidly in modern age and the product that X ray examination camera work combines.But in small-sized scientific research and education experiment, as seek out material or component inside structure, conventional CT machine is not desirable equipment, this be because: 1) conventional CT equipment is very expensive, up to a million easily, even ten million, and general user is difficult to burden; 2) conventional CT equipment needs radiographic source, and operating personnel need protection, are difficult to let the general operation personnel operation; 3) conventional CT equipment maintenance cost is high, and floor space is big, and is high to requirements of installation space.Above several respects have determined conventional X ray CT equipment to be difficult in the small-sized scientific research to promote.

To be suitable for the CT machine that in small-sized scientific research, uses in order developing, at first will to solve the problem of CT machine clamp.There is following defective in existing C T machine clamp: anchor clamps stateless checkout gear, some maloperations are easy to cause anchor clamps to destroy.When cutting brittle material, it is excessive that power is given in addition, and workpiece is fragile, causes the cut surface out-of-flatness; It is too small that power is given, and can reduce cutting efficiency again, very consuming time.So, do not have to realize the CT machine clamp of high efficiency, full-automatic, safe cutting brittle material so far on the market.

The utility model content

Goal of the invention: in order to overcome the deficiency that exists in the prior art, the utility model provides a kind of can improve cutting efficiency and cutting accuracy, thereby and can detect cut state, the anchor clamps of the auto slice formula CT machine that safeguard protection avoids defective work piece are provided.

Technical scheme: for solving the problems of the technologies described above; The anchor clamps of a kind of auto slice formula CT machine of the utility model; Comprise housing and loam cake; Said loam cake is equipped with displacement transducer, pressure-regulating device and proximity transducer, and said displacement transducer below is provided with the displacement transducer catch, and the displacement transducer catch is connected with the chucking slide block that is used for clamping workpiece through guide rod; Said displacement transducer lower end and displacement transducer catch contact and are used to measure the thickness of cut workpiece, and said pressure-regulating device lower end contacts with the displacement transducer catch.

Said pressure-regulating device comprises pressure adjusting lever, spring and spring bracing; Pressure adjusting lever is installed in the spring bracing; Pressure adjusting lever upper end and loam cake are equipped with the spring jacking block through being threaded on the spring, and the spring lower end contacts with the displacement transducer catch.

Said proximity transducer upper end is stuck in the hole of loam cake, and the proximity transducer lower end is threaded with sensor support base through lock washer and thin nut, thereby realizes the location on the vertical direction.

Said chucking slide block top is provided with crosshead shoe, and crosshead shoe links to each other with guide rod through screw, and the chucking slide block has the chute that matches with crosshead shoe, and chucking slide block outside is provided with sleeve, and sleeve is realized the chucking to workpiece with capping through adjusting nut.

Side guide rod, first linear bearing and second linear bearing are installed in the said housing; Said guide rod cooperates with first linear bearing; Said side guide rod cooperates with second linear bearing; The bearing catch is equipped with so that bearing and bearing are fixed in the housing top.

Beneficial effect: the anchor clamps of the auto slice formula CT machine of the utility model, be skillfully constructed, structure is unique, plays flexible loading effect through pressure-regulating device, can be according to the cutting needs from the active force of main regulation to workpiece; Through high accuracy displacement sensor perception work piece cut position, can improve cutting accuracy and cutting efficiency; Through the cut state of proximity transducer perception workpiece, it is excessive and cause the damage of high accuracy displacement sensor and clamp body to prevent to cut stroke.The utility model is easy to manufacture, and is with low cost, helps promoting the use of.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the fractionation structural representation that tightens slide block 4 and crosshead shoe 5 among Fig. 1.

1 housing; 2 first linear bearings; 3 sleeves; 4 chucking slide blocks; 5 crosshead shoes; 6 guide rods; 7 cappings; 8 workpiece; 9 nuts; 10 second linear bearings; 11 guide rod connectors; 12 side guide rods; 13 proximity transducers; 14 lock washers; 15 thin nuts; 16 displacement transducers; 17 loam cakes; 18 spring bracings; 19 spring jacking blocks; 20 pressure adjusting levers; 21 springs; 22 Fixing clamp-seats; 23 sensor support bases; 24 bearing catch; 25 Adjustable cantilever beams; 26 displacement transducer catch; 27 chutes

The specific embodiment

Below in conjunction with accompanying drawing the utility model is done explanation further.

As shown in Figure 1; The anchor clamps of the auto slice formula CT machine of the utility model; Comprise housing 1 and loam cake 17, loam cake 17 is equipped with displacement transducer 16, pressure-regulating device and proximity transducer 13 (proximity transducer 13 also is a kind of displacement transducer, is a kind of element that object near it is had " perception " ability); Displacement transducer 16 belows are provided with displacement transducer catch 26, and displacement transducer catch 26 is connected with the chucking slide block 4 that is used for clamping workpiece 8 through guide rod 6; Displacement transducer 16 lower ends and displacement transducer catch 26 contact and are used to measure the thickness of cut workpiece 8, and the pressure-regulating device lower end contacts with displacement transducer catch 26.

In the present embodiment; Pressure-regulating device comprises pressure adjusting lever 20, spring 21 and spring bracing 18; Pressure adjusting lever 20 is installed in the spring bracing 18; Pressure adjusting lever 20 upper ends and loam cake 17 are through being threaded, and spring jacking block 19 is equipped with in spring 21 upper ends, and spring 21 lower ends contact with displacement transducer catch 26.

As depicted in figs. 1 and 2; From bottom to top; Workpiece 8 is installed in the chucking slide block 4, and crosshead shoe 5 links to each other with guide rod 6 through screw, and chucking slide block 4 has the chute 27 that matches with crosshead shoe 5; Sleeve 3 is enclosed within chucking slide block 4 outsides, passes through the chucking that adjusting nut 9 is realized workpiece 8 with capping 7.During card engaging workpiece 8, unscrew adjusting nut 9, sleeve 3 is away from the axle center, and chucking slide block 4 outwards moves away from the axle center, is beneficial to workpiece 8 and is installed; Pack into behind the workpiece 8, the adjusting nut 9 of screwing, sleeve 3 be towards axe movement, chucking slide block 4 under the extruding of sleeve 3 to axe movement, thereby realize chucking to workpiece 8.

The displacement of workpiece 8 is transmitted to displacement transducer 16 through guide rod 6 and displacement transducer catch 26.Guide rod 6 cooperates with first linear bearing 2 in being installed in housing 1, side guide rod 12 be installed in the housing 1 second interior linear bearing 10 and cooperate, bearing catch 24 is equipped with so that first linear bearing 2 and second linear bearing 10 are fixed in housing 1 top.Displacement transducer 26, guide rod connector 11, side guide rod 12 and guide rod 6 are fixed as a removable combination by the screw connection, and this combination can be through the displacement of second linear bearing 10 and first linear bearing, 2 expression guide rods 6.Adjustable cantilever beam 25 is fixed on the housing 1 through screw.

Fixing clamp-seat 22 is fixed on the loam cake 17 through screw, and displacement transducer 16 is positioned by Fixing clamp-seat 22, and the lower end contacts with displacement transducer catch 26 no pressure under nature; Sensor support base 23 is installed on the loam cake 17, and proximity transducer 13 upper ends are stuck in the hole of loam cake 17, and the lower end is threaded with sensor support base 23 through lock washer 14 and thin nut 15, thereby realizes the location on the vertical direction; Pressure adjusting lever 20 is installed in the spring bracing 18, and pressure adjusting lever 20 upper ends are threaded with loam cake 17, and spring jacking block 19 is equipped with in spring 21 upper ends, and spring 21 lower ends contact with displacement transducer catch 26.Pressure adjusting lever 20 is rotated in the forward or counter-rotating can make spring 21 compression or loosen, thus the pressure of regulating action on displacement transducer catch 26, and these parts can be realized the balance of power system between combination and the displacement transducer 16.The anchor clamps of the auto slice formula CT machine of the utility model after workpiece is installed completion, are connected with removable frame through Adjustable cantilever beam 25, can realize the concrete operations to workpiece 8.

The anchor clamps of the auto slice formula CT machine of the utility model are installed on the lifting platform usually and use.Workpiece 8 is installed in the slide block 5, regulates adjusting nut 9, clamping work pieces 8.When lifting platform moved up and down, displacement transducer catch 26 was done as a whole owing to conduct oneself with dignity and the nonelastic contact condition of the thimble of precise displacement sensor 16 with guide rod 6 and workpiece 8, and at this moment, the reading of precise displacement sensor 16 is zero.Run into the cut surface of grinding and polishing machine when workpiece 8; And lifting platform continues to move down; Workpiece 8 along linear bearing 2 with linear bearing 10 and drive displacement transducer catch 26 and do stretching motion, thereby drive the thimble motion of precise displacement sensor 16, make precise displacement sensor 16 produce readings.If the thickness that we need cut into slices is 1mm, can move down through control system control lifting platform so, when the reading of precise displacement sensor 16 stops during for 1mm, start the grinding and polishing machine then workpiece 8 is cut; In the process of cutting, because the deadweight of workpiece 8 and guide rod 6 and spring 21 can be upheld gradually, displacement transducer catch 26 can fall gradually, and the reading of precise displacement sensor 16 can reduce gradually, is zero until reading, can think that once section finishes this moment.

In cutting process, system controls the thickness of cut workpiece 8 through the reading of precise displacement sensor 16, and spring 21 can play the flexible effect that loads, pressure adjusting lever 20 can regulating spring 21 when workpiece 8 is cut to the active force of workpiece 8.Active force to workpiece 8 can be regulated with the cutting needs according to the material of workpiece 8.In the process of section; The relative displacement of proximity transducer 13 real-time detecting position displacement sensor catch 26 and proximity transducer 13 detection faces; If detected relative displacement is less than certain value, then proximity transducer 13 will send a control signal, prompt system; The anchor clamps stroke is excessive, and system will take corresponding protection.Prevent that workpiece 8 strokes are excessive and precise displacement sensor 16 and clamp body are caused damage.

The above only is the preferred implementation of the utility model; Be noted that for those skilled in the art; Under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.

Claims

1. the anchor clamps of an auto slice formula CT machine; It is characterized in that: comprise housing (1) and loam cake (17); Said loam cake (17) is equipped with displacement transducer (16), pressure-regulating device and proximity transducer (13); Said displacement transducer (16) below is provided with displacement transducer catch (26), and displacement transducer catch (26) is connected with the chucking slide block (4) that is used for clamping workpiece (8) through guide rod (6); Said displacement transducer (16) lower end and displacement transducer catch (26) contact and are used to measure the thickness of cut workpiece (8), and said pressure-regulating device lower end contacts with displacement transducer catch (26).

2. the anchor clamps of auto slice formula CT machine according to claim 1; It is characterized in that: said pressure-regulating device comprises pressure adjusting lever (20), spring (21) and spring bracing (18); Pressure adjusting lever (20) is installed in the spring bracing (18); Pressure adjusting lever (20) upper end and loam cake (17) are equipped with spring jacking block (19) through being threaded on the spring (21), and spring (21) lower end contacts with displacement transducer catch (26).

3. the anchor clamps of auto slice formula CT machine according to claim 1; It is characterized in that: said proximity transducer (13) upper end is stuck in the hole of loam cake (17); Proximity transducer (13) lower end is threaded with sensor support base (23) through lock washer (14) and thin nut (15), thereby realizes the location on the vertical direction.

4. the anchor clamps of auto slice formula CT machine according to claim 1; It is characterized in that: said slide block (4) top is provided with crosshead shoe (5); Crosshead shoe (5) links to each other with guide rod (6) through screw; Chucking slide block (4) has the chute (27) that matches with crosshead shoe (5), and chucking slide block (4) outside is provided with sleeve (3), and sleeve (3) is realized the chucking to workpiece (8) with capping (7) through adjusting nut (9).

5. according to the anchor clamps of each described auto slice formula CT machine of claim 1 to 4, it is characterized in that: side guide rod (12), first linear bearing (2) and second linear bearing (10) are installed in the said housing (1); Said guide rod (6) cooperates with first linear bearing (2); Said side guide rod (12) cooperates with second linear bearing (10); Bearing catch (24) is equipped with so that bearing (2) and bearing (10) are fixed in housing (1) top.