CN216900295U

CN216900295U - Fixing device for flaw detection and conveying of functional ceramic refractory products

Info

Publication number: CN216900295U
Application number: CN202123208419.0U
Authority: CN
Inventors: 夏发业; 赵桂飞
Original assignee: Maanshan Yijiang Refractory Ceramics Manufacturing Co ltd
Current assignee: Maanshan Yijiang Refractory Ceramics Manufacturing Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-07-05
Anticipated expiration: 2031-12-20

Abstract

The utility model discloses a fixing device for flaw detection and conveying of functional ceramic refractory products, which comprises a base, a clamping mechanism and a driving mechanism, wherein the clamping mechanism comprises: the clamping mechanism is fixed on the base, and the driving mechanism is connected with the clamping mechanism; the clamping mechanism comprises a screw rod, two supporting seats and two clamping units which are arranged in bilateral symmetry; the two supporting seats are respectively fixed on the left end face and the right end face of the base, one end of the screw rod penetrates through one supporting seat to be connected with the driving mechanism, the other end of the screw rod is connected with the other supporting seat, two sections of threads with opposite rotation directions are arranged on the screw rod, and each section of threads is connected with one clamping unit; each clamping unit comprises a movable sliding block, a spring and a clamping block; the movable sliding block is screwed on the thread of the screw rod, the spring is arranged in the hole of the movable sliding block, one end of the clamping block extends into the hole of the movable sliding block to be contacted with the spring, and the clamping end of the clamping block, which is positioned outside the movable sliding block, is a V-shaped opening. The fixing device can stably and reliably clamp the flaw detection product, and ensures the inspection efficiency.

Description

Fixing device for flaw detection and conveying of functional ceramic refractory products

Technical Field

The present invention relates to a tool for fixing a refractory material member used in a continuous casting process.

Background

At present, the functional ceramic refractory products used in continuous casting in steel mills are generally carbon-containing inorganic non-metallic materials. The product has high refractoriness, low strength, large brittleness and easy breaking. The surface of the product is provided with an anti-oxidation coating which is smooth and easy to damage. The product is basically cylindrical or the main body is a cylindrical solid, and has special-shaped products. Due to the particularity, the criticality and the risk of the use occasions of the products, X-ray nondestructive inspection is required to be carried out on the products in the production process or before the products leave a factory, whether the products have defects or not is observed, and if the defects exist, the shapes and the sizes of the defects are required to be comprehensively analyzed and evaluated so as to guide the improvement of the production process of the products and reduce the rejection rate and the use risk of the products after the products leave the factory. At present, during flaw detection, products are directly placed on a moving platform and are conveyed into a flaw detection lead room for X-ray nondestructive flaw detection, and the products are freely placed on the moving platform without constraint because the equipment is not provided with a fixing device. Because of the inertia that the platform opened and stops and there is retardation or card pause phenomenon at the removal in-process, the product often appears rocking and unstable state in transporting the in-process, and especially stability is worse when the long and thin product that the inspection slenderness ratio is big rocks seriously, takes place often that the product topples over to break and leads to the product to scrap, still can injure the inspection equipment by a crashing object when the product falls down even, seriously influences normal inspection procedure and inspection efficiency, has increased manufacturing cost.

Disclosure of Invention

The fixing device can stably and reliably clamp the flaw detection product, so that the product cannot be scrapped or the flaw detection equipment cannot be damaged due to toppling and breaking caused by shaking in the conveying process, normal inspection procedures and inspection efficiency are guaranteed, and production cost is reduced. Meanwhile, the self-centering clamping fixture can be used for self-centering clamping of products with different diameters, is applicable to quick flaw detection and detection of different special-shaped products, and has wide clamping range, the replacement of the clamping blocks is reduced, and the detection efficiency is improved. In addition, the utility model does not damage the product and the coating on the surface of the product in the clamping process.

The utility model relates to a fixing device for flaw detection and conveying of functional ceramic refractory products, which comprises a base, a clamping mechanism and a driving mechanism: the clamping mechanism is fixed on the base, and the driving mechanism is connected with the clamping mechanism; the clamping mechanism comprises a screw rod, two supporting seats and two clamping units which are arranged in bilateral symmetry; the two supporting seats are respectively fixed on the left end face and the right end face of the base, one end of the screw rod penetrates through one supporting seat to be connected with the driving mechanism, the other end of the screw rod is connected with the other supporting seat, two sections of threads with opposite rotation directions are arranged on the screw rod, and each section of threads is connected with one clamping unit; each clamping unit comprises a movable sliding block, a spring and a clamping block; the movable sliding block is screwed on the thread of the screw rod, the spring is arranged in the hole of the movable sliding block, one end of the clamping block extends into the hole of the movable sliding block to be contacted with the spring, and the clamping end of the clamping block, which is positioned outside the movable sliding block, is a V-shaped opening.

Further, the driving mechanism comprises a handle and a hand wheel; one end of the screw rod is connected with the hand wheel through a flat key and a bolt, and the handle is connected with the hand wheel through threads.

Further, the clamping end V-shaped opening of the clamping block is 90 °.

Furthermore, one section of thread on the screw rod is a left-handed trapezoidal thread, and the other section of thread is a right-handed trapezoidal thread; one movable sliding block is provided with a left-handed trapezoidal screw hole, and the other movable sliding block is provided with a right-handed trapezoidal screw hole.

Further, each clamping unit also comprises a limit screw; the clamping block is provided with an annular groove, the limiting screw is screwed with the screw hole of the clamping block, and the bottom of the limiting screw is positioned in the annular groove and is not contacted with the annular groove.

Further, each clamping unit also comprises a rubber pad; the rubber pad is fixed on the V-shaped groove of the clamping block, and the surface of the rubber pad is provided with 90-degree serrated concave-convex anti-skid grooves.

Further, the clamping mechanism also comprises two sliding sleeves; a sliding sleeve is arranged between the screw rod and the two supporting seats in the radial direction.

Furthermore, the clamping mechanism also comprises a retaining ring for the shaft and two retaining rings; the retaining ring for the shaft and the retaining ring are both sleeved on the excircle of the screw rod, the two retaining rings are respectively pressed on the left end face and the right end face of the sliding sleeve close to the hand wheel, and the retaining ring for the shaft is pressed on the end face of the retaining ring close to the hand wheel.

The fixing device has the advantages that: firstly, a flaw detection product is placed on a base 5, a lead screw 6 drives two movable slide blocks 7 through a left-right-handed trapezoidal thread pair to drive two clamping blocks 10 to move relatively to clamp and fix the product; after the product flaw detection is finished, the screw rod 6 drives the two movable slide blocks 7 through the left-right-handed trapezoidal thread pair to respectively drive the two clamping blocks 10 to simultaneously and oppositely move so as to gradually and slowly loosen the product; the fixing device is stable in clamping and high in efficiency, so that the product cannot fall down and break to cause product scrapping and damage to flaw detection equipment due to shaking in the conveying process, normal inspection procedures and inspection efficiency are guaranteed, and production cost is reduced. At the same time; secondly, a 90-degree V-shaped opening at the clamping end of the sliding block is moved, so that the clamping is stable and reliable, products with different diameters can be clamped in a self-centering manner, the clamping range is wide, the replacement of the clamping block is reduced, and the inspection efficiency is improved; the movable sliding block is convenient to replace, and can be suitable for quick flaw detection of different special-shaped products; thirdly, the clamping force of the movable sliding block can be adjusted by replacing different springs and matching with the force of a hand wheel, so that the phenomenon that the product is damaged due to overlarge clamping force is avoided; the surface of the rubber pad is provided with the serrated concave-convex anti-slip grooves, so that the friction force during product clamping can be increased, and the coating on the surface of the product can be prevented from being damaged in the product clamping process.

Drawings

FIG. 1 is a top view of the fixture of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is an enlarged schematic view at B in fig. 2.

Detailed Description

Example 1

As can be seen from FIGS. 1 and 2, the fixing device for flaw detection and transportation of a functional ceramic refractory product of the present invention comprises a base 5, a clamping mechanism, a driving mechanism: the clamping mechanism is fixed on the base 5, and the driving mechanism is connected with the clamping mechanism; the clamping mechanism comprises a screw rod 6, two supporting seats 12 and two clamping units which are arranged in bilateral symmetry; two supporting seats 12 are respectively fixed on the left end face and the right end face of the base 5, one end of the screw rod 6 penetrates through one supporting seat 12 to be connected with a driving mechanism, the other end of the screw rod 6 is connected with the other supporting seat 12, two sections of threads with opposite rotation directions are arranged on the screw rod 6, and each section of threads is connected with a clamping unit; each clamping unit comprises a movable slide block 7, a spring 8 and a clamping block 10; the movable sliding block 7 is screwed on the thread of the screw rod 6, the spring 8 is arranged in a hole of the movable sliding block 7, one end of the clamping block 10 extends into the hole of the movable sliding block 7 to be in contact with the spring 8, and the clamping end of the clamping block located outside the movable sliding block 7 is a V-shaped opening.

Two sections of threads with opposite rotation directions of the screw rod 6 are respectively matched with the two movable sliding blocks 7 which are symmetrical left and right to form two movable thread pairs with opposite rotation directions.

Wherein, the driving mechanism comprises a handle 1 and a hand wheel 3; one end of the screw rod 6 is connected with the hand wheel 3 through a flat key and a bolt, and the handle 1 is connected with the hand wheel 3 through threads.

The fixing device is fixedly connected with a moving platform of the existing X-ray nondestructive inspection equipment through a bottom plate and sends the moving platform to a corresponding position, and when the fixing device is used, the fixing device comprises the following components: a flaw detection product is placed on the base 5 and located between the two clamping blocks 10, the hand wheel 3 is rotated clockwise through the handle 1 to enable the lead screw 6 to rotate, the lead screw 6 drives the two movable sliding blocks 7 through the left-handed and right-handed thread pair to drive the two clamping blocks 10 to move relatively at the same time, and the two clamping blocks 10 clamp and fix the product; after the product flaw detection is finished, the hand wheel 3 is rotated anticlockwise through the handle 1 to enable the lead screw 6 to rotate, the lead screw 6 drives the two movable sliding blocks 7 through the left-hand thread pair and the right-hand thread pair and drives the two clamping blocks 10 to move oppositely at the same time, and the two clamping blocks 10 gradually and slowly loosen the product. Therefore, the fixing device is stable in clamping and high in efficiency. Wherein, because the spring 8 plays the cushioning effect, press from both sides tight piece 10 and regard spring 8 as the support can float in certain extent in addition, consequently can avoid pressing the product when pressing from both sides tightly fast. In addition, for special-shaped products of different types (shapes), clamping inspection of various products can be realized by replacing the clamping blocks 10 of different types.

Example 2

As can be seen from fig. 1 and 2, the fixing device of the present invention: the clamping end V-shaped opening of the clamping block 10 is 90 °.

The 90-degree opening enables the workpiece to be clamped stably and reliably, products with different diameters can be clamped in a self-centering mode, the clamping range is wide, the replacement of clamping blocks is reduced, and the inspection efficiency is improved;

example 3

As can be seen from fig. 1 and 2, the fixing device of the present invention: one section of thread on the screw rod 6 is a left-handed trapezoidal thread, and the other section of thread is a right-handed trapezoidal thread; one moving slide block 7 is provided with a left-handed trapezoidal screw hole, and the other moving slide block 7 is provided with a right-handed trapezoidal screw hole.

The lead screw 6 is matched with two bilaterally symmetrical movable sliding blocks 7, and two left-right-handed trapezoidal screw holes of the movable sliding blocks 7 are matched with corresponding left-handed trapezoidal threads and right-handed trapezoidal threads of the lead screw 6 to form a movable trapezoidal thread pair. Trapezoidal thread is neutral to good, and the screw thread fitting surface is big for it is good difficult for rocking to remove slider 7 at 6 sports of lead screw, thereby presss from both sides tight product better.

Example 4

As can be seen from fig. 1 and 2, the fixing device of the present invention: each clamping unit further comprises a limit screw 11; an annular groove is formed in the clamping block 10, the limiting screw 11 is screwed with the screw hole of the clamping block 10, and the bottom of the limiting screw is located in the annular groove and is not in contact with the annular groove.

The utility model limits the axial movement of the clamping block 10 in the inner hole of the movable sliding block 7 through the limiting screw 11 and the annular groove, and simultaneously can ensure the floating in the inner hole of the sliding block 7, so that the clamping block 10 can move in a certain range, thereby better clamping a product.

Example 5

As can be seen from fig. 1, 2 and 3, the fixing device of the present invention: each clamping unit further comprises a rubber pad 9; the rubber pad 9 is fixed on the V-shaped groove of the clamping block 10, and the surface of the rubber pad 9 is provided with a 90-degree serrated concave-convex anti-slip groove.

The rubber pad 9 has wear-resisting, elasticity, skid-proof function, presss from both sides tightly and fixes the product through the antiskid protection pad 9 on the clamp piece and can protect the coating on product surface effectively, has reduced the quality risk.

Example 6

As can be seen from fig. 1 and 2, the fixing device of the present invention: the clamping mechanism further comprises two sliding sleeves 4; a sliding sleeve 4 is arranged between the screw rod 6 and the two supporting seats 12 in the radial direction.

The sliding sleeve 4 delays the abrasion between the screw rod 6 and the two supporting seats 12, and prolongs the service life of the fixing device.

Example 7

As can be seen from fig. 1 and 2, the fixing device of the present invention: the clamping mechanism also comprises a retaining ring 13 for the shaft and two retaining rings 2; the shaft retainer ring 13 and the baffle ring 2 are both sleeved on the excircle of the screw rod 6, the two baffle rings 2 are respectively pressed on the left end surface and the right end surface of the sliding sleeve 4 close to the hand wheel 3, and the shaft retainer ring 13 is pressed on the end surface of the baffle ring 2 close to the hand wheel 3.

Two ends of one sliding sleeve 4 are provided with two baffle rings 2 to prevent the screw rod 6 from moving left and right; one of the baffle rings 2 is used for limiting and fixing the axial direction of the screw rod through a shaft baffle ring 13, and further preventing the screw rod 6 from moving left and right.

The fixing device has the advantages that: the relative movement of the movable sliding blocks is realized through the rotation of the handle and the lead screw, and the two sections of positive and negative trapezoidal thread pairs of the lead screw enable the two clamping blocks to simultaneously move oppositely to clamp a product or move oppositely to loosen the product when the lead screw rotates, so that the clamping is stable and the efficiency is high; the clamping end of the movable sliding block is a 90-degree V-shaped opening, so that the clamping is stable and reliable, products with different diameters can be clamped in a self-centering manner, the clamping range is wide, the replacement of the clamping block is reduced, and the inspection efficiency is improved; thirdly, the movable sliding block is convenient to replace and can be suitable for quick flaw detection of different special-shaped products; fourthly, the clamping force of the movable sliding block can be adjusted by replacing different springs and matching with the force of a hand wheel, so that the damage to a product caused by the overlarge clamping force is prevented; and fifthly, the surface of the rubber pad is provided with a serrated concave-convex anti-slip groove, so that the friction force during product clamping can be increased, and the coating on the surface of the product can be prevented from being damaged in the product clamping process.

The fixing device stably and firmly fixes the product on the fixing device, so that the phenomenon of shaking or toppling over of the product in the moving process is avoided, the stability and the safety of the product in the moving process are ensured, the breaking loss of the product during inspection is reduced, and the smooth flaw detection inspection is ensured; the risk that the flaw detection equipment is damaged by smashing due to the fact that products topple over is reduced, production cost is reduced, and the utilization rate of the equipment and the efficiency of flaw detection are improved. The utility model prevents the product from being damaged by adjusting the clamping force; the coating on the surface of the product is protected by arranging the protective rubber pad, so that the quality risk is reduced. The fixing device has wide clamping range and can quickly clamp products of different types and sizes.

Claims

1. Fixing device of usefulness is carried in flaw detection of functional ceramic refractory product, characterized by: it includes base (5), clamping mechanism, actuating mechanism: the clamping mechanism is fixed on the base (5), and the driving mechanism is connected with the clamping mechanism; the clamping mechanism comprises a screw rod (6), two supporting seats (12) and two clamping units which are arranged in bilateral symmetry; the two supporting seats (12) are respectively fixed on the left end face and the right end face of the base (5), one end of the screw rod (6) penetrates through one supporting seat (12) to be connected with the driving mechanism, the other end of the screw rod is connected with the other supporting seat (12), two sections of threads with opposite rotation directions are arranged on the screw rod (6), and each section of threads is connected with one clamping unit; each clamping unit comprises a movable sliding block (7), a spring (8) and a clamping block (10); the movable sliding block (7) is screwed on the thread of the lead screw (6), the spring (8) is arranged in a hole of the movable sliding block (7), one end of the clamping block (10) extends into the hole of the movable sliding block (7) to be in contact with the spring (8), and the clamping end of the clamping block, which is positioned outside the movable sliding block (7), is a V-shaped opening.

2. The fixture according to claim 1, wherein: the driving mechanism comprises a handle (1) and a hand wheel (3); one end of the screw rod (6) is connected with the hand wheel (3) through a flat key and a bolt, and the handle (1) is connected with the hand wheel (3) through threads.

3. The fixture according to claim 1, wherein: the V-shaped opening of the clamping end of the clamping block (10) is 90 degrees.

4. The fixture according to claim 1, wherein: one section of thread on the screw rod (6) is a left-hand trapezoidal thread, and the other section of thread is a right-hand trapezoidal thread; one movable sliding block (7) is provided with a left-handed trapezoidal screw hole, and the other movable sliding block (7) is provided with a right-handed trapezoidal screw hole.

5. The fixture according to claim 1, wherein: each clamping unit further comprises a limit screw (11); an annular groove is formed in the clamping block (10), a limiting screw (11) is screwed with a screw hole of the clamping block (10), and the bottom of the limiting screw is located in the annular groove and is not in contact with the annular groove.

6. The fixture according to claim 1, wherein: each clamping unit further comprises a rubber pad (9); the rubber pad (9) is fixed on the V-shaped groove of the clamping block (10), and the surface of the rubber pad (9) is provided with a 90-degree serrated concave-convex anti-skid groove.

7. The fixture according to claim 1, wherein: the clamping mechanism also comprises two sliding sleeves (4); a sliding sleeve (4) is arranged between the screw rod (6) and the two supporting seats (12) in the radial direction.

8. The fixture according to claim 7, wherein: the clamping mechanism also comprises a retaining ring (13) for the shaft and two retaining rings (2); the shaft retainer ring (13) and the baffle ring (2) are sleeved on the excircle of the screw rod (6), the two baffle rings (2) are respectively pressed on the left end face and the right end face of the sliding sleeve (4) close to the hand wheel (3), and the shaft retainer ring (13) is pressed on the end face of the baffle ring (2) close to the hand wheel (3).