CN212459157U - Special clamp for stretching alkali-resistant glass fiber mesh cloth - Google Patents

Abstract

The utility model discloses a tensile special fixture of alkali-resisting glass fiber net cloth, which comprises a housin, be equipped with the connector on the casing, the outside of casing is equipped with the cylinder, be equipped with cylinder piston in the cylinder, cylinder piston is connected with first ejector pin, the cover has the spring on the first ejector pin, second ejector pin is connected to first ejector pin, in the casing is arranged in to the second ejector pin, the second ejector pin is connected with the third ejector pin through the swing arm, the swing arm is fixed on the casing, the opposite face of third ejector pin is equipped with the fourth ejector pin, the relative end of third ejector pin and fourth ejector pin all is connected with the anchor clamps head, all be equipped with the polyurethane gasket on the opposite face. The utility model discloses a high-pressure air promotes cylinder piston motion, produces thrust, according to area x air pressure ═ thrust, designs the cylinder diameter, has selected air pressure, and the position can be adjusted to the anchor clamps in addition one side to adapt to different thickness samples, flexible clamping face is through huge thrust, the inside frictional force that produces of embedding net cloth, does not skid with the sample in the assurance retension test process.

Description

Special clamp for stretching alkali-resistant glass fiber mesh cloth

Technical Field

The utility model relates to a tensile anchor clamps, especially a tensile special fixture of alkali-resisting glass fiber net cloth.

Background

At present, when the alkali-resistant glass fiber mesh cloth is subjected to a tensile test, a sample is often damaged at a clamp opening, and special treatment can be performed on the end part of the sample according to the GB/T7689.5-2001/7.2 regulation, but the treatment process is complicated, the treatment period is as long as several days, a large amount of manpower is consumed for treating the sample, and the expenditure of consumables is also a cost which is not small.

Before the test, epoxy resin is required to be coated at two ends of the alkali-resistant glass fiber mesh cloth, time and labor are wasted, the cost is high, the clamp is required to be screwed manually, the clamping force of the clamp cannot be controlled completely, the screwed tight mesh cloth is easy to deform and damage, and the mesh cloth can incline and deform and damage easily when the upper clamp and the lower clamp are clamped.

20-60 samples need to be cut to complete a group of tests, and 5 effective detection data are needed in the group of tests, for example, the tensile fracture strength is larger than or equal to 1500N, and the alkali-resistant tensile fracture strength is larger than or equal to 750N, so that 1.5-2 hours are needed for detecting the group of samples, and the test efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tensile special fixture of alkali-resisting glass fiber net cloth to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a special clamp for stretching alkali-resistant glass fiber mesh cloth comprises a shell, wherein a connector is arranged on the shell, a cylinder is arranged on the outer side of the shell, a cylinder connector is arranged outside the cylinder, a cylinder piston is arranged in the cylinder, the cylinder piston is connected with a first ejector rod, a spring is sleeved on the first ejector rod, the first ejector rod is connected with a second ejector rod, the second ejector rod is arranged in the shell, the second ejector rod is connected with a third ejector rod through a swing arm, the swing arm is fixed on the shell through a positioning pin, a fourth ejector rod is arranged on the opposite surface of the third ejector rod, the fourth ejector rod is also arranged in the shell, the opposite ends of the third ejector rod and the fourth ejector rod are both connected with a clamp head through guide rail limiting pins, polyurethane gaskets are arranged on the opposite surfaces of the clamp heads, a seal cover is arranged on the outer side of the fourth ejector rod, an adjusting rod, the adjusting rod is sleeved with an adjusting and locking knob, and the adjusting and locking knob is arranged on the outer side of the sealing cover.

The utility model discloses a further improvement lies in: the both ends of swing arm are opened there is the spread groove, and one end spread groove in-connection has the second ejector pin, and other end spread groove in-connection has the third ejector pin, is equipped with the elliptical aperture on the upper and lower face of spread groove for the round pin axle of connecting the ejector pin is arranged in the elliptical aperture.

The utility model discloses a further improvement lies in: the thrust that the second ejector pin received is F1, and the distance between the connecting point of second ejector pin and swing arm to the locating pin is L1, and the thrust that the third ejector pin received is F2, and the distance between the connecting point of locating pin to third ejector pin and swing arm is L2, and F1 is the cylinder thrust, and F2 is the anchor clamps fastening force, and F2 is F1 xL 1/L2.

The utility model discloses a further improvement lies in: the third top rod is an elliptic rod or a square rod.

The utility model discloses a further improvement lies in: jacks are arranged in the third ejector rod and the fourth ejector rod, connecting blocks are arranged at the connecting ends of the clamp heads, the connecting blocks are inserted into the jacks, matched limiting pin holes are formed in the third ejector rod, the fourth ejector rod and the connecting blocks, and guide rail limiting pins are inserted into the limiting pin holes.

The utility model discloses a further improvement lies in: the shell is provided with a U-shaped groove, and the guide rail limiting pin is arranged in the U-shaped groove.

The utility model discloses a further improvement lies in: the polyurethane gasket is detachable.

The utility model discloses a further improvement lies in: the clamp head is provided with scale marks.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the opening of the clamp adopts a polyurethane flexible gasket, so that the sample is not damaged while the clamping of the grid cloth sample is ensured;

2. the polyurethane flexible gasket adopted by the clamp port can be used repeatedly, so that the clamp has the characteristic of long service life, and a large amount of consumable cost generated in the traditional treatment method is saved;

3. the clamp adopts a pneumatic opening and closing device, so that the operation of an experimenter is more convenient and faster;

4. the air pump provides constant fastening force for the clamp port, so that the loosening of the fastening force generated by factors such as the fracture and deformation of the sample in the stretching process is avoided, and the automatic compensation is realized when the fastening force is reduced;

5. the upper and lower clamp openings are provided with standard scale marks, so that the mounting quality of the sample can be calibrated by an experimenter, and the manual operation errors can be reduced;

6. the clamps are fixed by positioning pins, so that adverse factors such as inclination, torsion and the like between the upper clamp and the lower clamp are avoided;

7. effective test data can be obtained quickly, the efficiency is high, and the test time is saved by 30%.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a bottom view of the present invention;

FIG. 4 is a schematic connection diagram of the second ejector pin, the swing arm, and the third ejector pin;

FIG. 5 is a schematic view of the connection between the third carrier rod and the clamp head;

FIG. 6 is a sectional view of the third lift pin;

reference numbers in the figures: the device comprises a connector 1, a cylinder 2, a cylinder 3, a shell 4, an adjusting knob 5, an adjusting rod 6, an adjusting locking knob 7, a sealing cover 8, a scale mark 9, a clamp head 10, a polyurethane gasket 11, a guide rail limiting pin 12, a positioning pin 13, an elliptical hole 14, a cylinder piston 15, a first ejector rod 16, a second ejector rod 17, a swing arm 18, a third ejector rod 19, a fourth ejector rod 20, a spring 21, a connecting groove 22, a pin shaft 23, a jack 24, a connecting block 25 and a U-shaped groove 26.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1 and fig. 2, the present embodiment provides a technical solution: the utility model provides a tensile special fixture of alkali-resisting glass fiber net check cloth, includes casing 4, is equipped with connector 1 on casing 4, and whole anchor clamps pass through the connector to be fixed on check out test set, can prevent that anchor clamps from rocking or slope. The outer side of a shell 4 is provided with a cylinder 2, the outer part of the cylinder 2 is provided with a cylinder joint 3, the cylinder 2 is internally provided with a cylinder piston 15, the cylinder piston 15 is connected with a first ejector rod 16, the first ejector rod 16 is sleeved with a spring 21, the first ejector rod 16 is connected with a second ejector rod 17, the second ejector rod 17 is arranged in the shell 4, the second ejector rod 17 is connected with a third ejector rod 19 through a swing arm 18, the swing arm 18 is fixed on the shell 4 through a positioning pin 13, the opposite surface of the third ejector rod 19 is provided with a fourth ejector rod 20, the fourth ejector rod 20 is also arranged in the shell 4, the opposite ends of the third ejector rod 19 and the fourth ejector rod 20 are connected with a clamp head 10 through a guide rail limit pin 12, the opposite surfaces of the clamp head 10 are respectively provided with a polyurethane gasket 11, the outer side of the fourth ejector rod 20 is provided with a seal cover 8, the seal cover 8 is internally provided with an adjusting rod, an adjusting and locking knob 7 is sleeved on the adjusting rod 6, and the adjusting and locking knob 7 is arranged on the outer side of the sealing cover 8; as shown in FIG. 3, the scale marks 9 are arranged on the clamp head 10, so that the upper and lower mesh fabrics are symmetrical, and the test efficiency is improved.

As shown in fig. 4, two ends of the swing arm 18 are provided with a connecting groove 22, one end of the connecting groove 22 is connected with the second push rod 17, the other end of the connecting groove 22 is connected with the third push rod 19, the upper and lower surfaces of the connecting groove 22 are provided with the elliptical hole 14, and a pin 23 for connecting the push rods is arranged in the elliptical hole 14.

As shown in fig. 5, insertion holes 24 are formed in the third ejector rod 19 and the fourth ejector rod 20, a connecting block 25 is arranged at the connecting end of the clamp head 10, the connecting block 25 is inserted into the insertion holes 24, matched limit pin holes are formed in the third ejector rod 19, the fourth ejector rod 20 and the connecting block 25, and guide rail limit pins 12 are inserted into the limit pin holes; the clamp head 10 can be detached, and meanwhile, the polyurethane gasket 11 can also be detached, so that the clamp head is convenient to replace.

As shown in fig. 6, the third push rod 19 is an elliptical rod or a square rod, so that the third push rod does not drive the shell to start when rotating, and the connection is more stable.

The shell 4 is provided with a U-shaped groove 26, the guide rail limiting pin 12 is arranged in the U-shaped groove 26, and when the third ejector rod 19 is reset, the guide rail limiting pin 12 is arranged at the bottom of the U-shaped groove 26 to prevent the clamp head 10 from colliding with the shell 4.

The cylinder joint is communicated with an air source, the cylinder piston is pushed, the first ejector rod pushes the second ejector rod, the second ejector rod drives the swing arm, the swing arm pushes the third ejector rod to be pushed in the opposite direction, so that the clamp head on one side is driven to be pushed in, the detected gridding cloth is clamped, the clamp head on the other side is pushed in by rotating the adjusting knob, and fine adjustment can be performed. After the test is finished, the air cylinder connector is separated from the air source, the spring retracts according to the elasticity of the spring, and all the components reset.

The thrust that the second ejector pin 17 received is F1, and the distance between the connecting point of second ejector pin 17 and swing arm 18 and locating pin 13 is L1, and the thrust that third ejector pin 19 received is F2, and the distance between the connecting point of locating pin 13 to third ejector pin 19 and swing arm 18 is L2, namely F1 is the cylinder thrust, F2 is the anchor clamps fastening force, F2 is F1 xL 1/L2. The air pressure of the air cylinder is controlled to be 500-600 kPa, and specific data can be referred to the following table:

the utility model discloses a high-pressure air promotes cylinder piston motion, produces thrust, according to area x air pressure ═ thrust, designs the cylinder diameter, has selected air pressure, and the position can be adjusted to the anchor clamps in addition one side to adapt to different thickness samples, flexible clamping face is through huge thrust, the inside frictional force that produces of embedding net cloth, does not skid with the sample in the assurance retension test process.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a tensile special fixture of alkali-resisting glass fiber net cloth which characterized in that: including casing (4), be equipped with connector (1) on casing (4), the outside of casing (4) is equipped with cylinder (2), cylinder (2) outside is equipped with cylinder joint (3), be equipped with cylinder piston (15) in cylinder (2), cylinder piston (15) are connected with first ejector pin (16), the cover has spring (21) on first ejector pin (16), second ejector pin (17) is connected in first ejector pin (16), second ejector pin (17) are arranged in casing (4), second ejector pin (17) are connected with third ejector pin (19) through swing arm (18), swing arm (18) are fixed through locating pin (13) on casing (4), the opposite face of third ejector pin (19) is equipped with fourth ejector pin (20), fourth ejector pin (20) also are arranged in casing (4), third ejector pin (19) with the opposite end of fourth ejector pin (20) all through guide rail spacer pin (12) ) Be connected with anchor clamps head (10), all be equipped with polyurethane gasket (11) on the opposite face of anchor clamps head (10), the outside of fourth ejector pin (20) is equipped with closing cap (8), be equipped with in closing cap (8) and adjust pole (6), the one end of adjusting pole (6) is inserted in fourth ejector pin (20), the other end of adjusting pole (6) is worn out closing cap (8) and be equipped with adjust knob (5), the cover has regulation locking knob (7) on adjusting pole (6), regulation locking knob (7) are arranged in the closing cap (8) outside.

2. The special fixture for stretching alkali-resistant glass fiber mesh cloth according to claim 1, characterized in that: both ends of swing arm (18) are opened has spread groove (22), one end spread groove (22) in-connection has second ejector pin (17), the other end spread groove in-connection has third ejector pin (19), be equipped with elliptical aperture (14) on the upper and lower face of spread groove for round pin axle (23) of connecting the ejector pin are arranged in elliptical aperture (14).

3. The special fixture for stretching alkali-resistant glass fiber mesh cloth according to claim 1, characterized in that: the thrust that the second ejector pin (17) received is F1, the distance between the connecting point of second ejector pin (17) with swing arm (18) to locating pin (13) is L1, the thrust that third ejector pin (19) received is F2, the distance between locating pin (13) to the connecting point of third ejector pin (19) with swing arm (18) is L2, and F1 is the cylinder thrust, and F2 is anchor clamps fastening force, and F2 is F1 xL 1/L2.

4. The special fixture for stretching alkali-resistant glass fiber mesh cloth according to claim 1, characterized in that: the third top rod (19) is an oval rod or a square rod.

5. The special fixture for stretching alkali-resistant glass fiber mesh cloth according to claim 1, characterized in that: be equipped with jack (24) in third ejector pin (19) and fourth ejector pin (20), the link of anchor clamps head (10) is equipped with connecting block (25), connecting block (25) are inserted in jack (24), third ejector pin (19), fourth ejector pin (20) with all be equipped with the spacing pinhole that matches on connecting block (25), it has been inserted in the spacing pinhole guide rail spacer pin (12).

6. The special fixture for stretching alkali-resistant glass fiber mesh cloth according to claim 1, characterized in that: the shell (4) is provided with a U-shaped groove (26), and the guide rail limiting pin (12) is arranged in the U-shaped groove (26).

7. The special fixture for stretching alkali-resistant glass fiber mesh cloth according to claim 1, characterized in that: the polyurethane gasket (11) is detachable.

8. The special fixture for stretching alkali-resistant glass fiber mesh cloth according to claim 1, characterized in that: and the clamp head (10) is provided with scale marks (9).

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