A fixture and fixing device for testing performance of flexible materials

Abstract

A fixture and a fixture for testing the performance of a flexible material, comprising a test bench (1), a fixing seat (5), a mounting seat (8) and a fixture (7); the test bench is covered with a layer of magnetic attraction plate (2); an elastic seat (6) is arranged at the bottom of the fixing seat; an installation chamber (9) is arranged inside the fixing seat, a base plate (10) is arranged inside the installation chamber, a threaded rod (4) is arranged at the top of the base plate, a hand wheel (3) is arranged at the top of the threaded rod, and the hand wheel is connected to the threaded rod in a transmission manner; a magnet (11) is arranged at the bottom of the base plate; the mounting seat is arranged at one side of the fixing seat; and the mounting seat is provided with a plurality of magnetic plates (11) on the fixing seat from left to right. A first mounting groove (14), a first slide bar (15), a second slide bar (16) and a second mounting groove (17) are vertically arranged, and a screw rod (18) is vertically arranged inside the first mounting groove and the second mounting groove; the bottom of the screw rod is a light rod; a top plate (19) is arranged on the top of the screw rod; a base (23) is arranged on the bottom of the light rod; a turntable (22) is fixedly installed on the light rod; a movable seat (20) is arranged on the screw rod, and the clamp includes two groups of clamp arms (21) arranged up and down; one end of the clamp arm is fixedly connected to the movable seat, and the clamp arm is slidably connected to the first slide bar and the second slide bar. The device can adjust the height of the clamp and can clamp flexible materials of different thicknesses; in addition, the fixed seat itself can be adjusted at any position of the test bench, which is more convenient to use.

Description

Technical Field

[0001] The invention relates to the technical field of clamps, and in particular to a clamp and a fixing device for testing the performance of flexible materials. Background Art

[0002] In the process of researching and exploring new materials, new processes, new technologies and new structures, material performance testing is an indispensable and important test content. During the stretching process, the testing machine should have appropriate fixtures, that is, the fixtures should not cause the sample to break at the fixtures; there are relatively few fixtures for flexible materials in the existing technology, and most of them are fixedly installed on the laboratory table and cannot be moved. They can only be adjusted in a small range of angles; it is quite inconvenient to use.

[0003] In order to solve the above problems, the present application proposes a fixture and a fixing device for testing the performance of a flexible material. Summary of the invention

[0004] (I) Purpose of the invention

[0005] In order to solve the technical problem that there are relatively few clamps for flexible materials in the prior art, and most of the clamps are fixedly installed on the experimental table and cannot be moved, and can only be adjusted in a small range; it is quite inconvenient to use, the present invention proposes a clamp and a fixing device for testing the performance of flexible materials. The present invention can adjust the height of the clamp and can clamp flexible materials of different thicknesses. In addition, the fixing seat itself can be adjusted at any position of the test bench, which is more convenient to use.

[0006] (II) Technical solution

[0007] In order to solve the above problems, the present invention provides a fixture and a fixing device for testing the performance of a flexible material, comprising a test bench, a fixing seat, a mounting seat and a fixture;

[0008] The test bench is a horizontal workbench, which is covered with a magnetic plate; multiple fixed seats are provided and all are located on the test bench; an elastic seat is provided at the bottom of the fixed seat, and an opening is provided at the bottom of the elastic seat; an installation bin is provided inside the fixed seat, a base plate is provided inside the installation bin, a threaded rod is provided on the top of the base plate, the threaded rod passes through the installation bin and extends out of the fixed seat, a hand wheel is provided on the top of the threaded rod, and the hand wheel is connected to the threaded rod in a transmission manner; a magnet is provided at the bottom of the base plate, and the magnet is magnetically connected to the magnetic plate;

[0009] The mounting seat is arranged on one side of the fixed seat; the mounting seat is vertically provided with a first mounting groove, a first sliding rod, a second sliding rod and a second mounting groove in sequence from left to right; a lead screw is vertically provided inside the first mounting groove and the second mounting groove; the bottom of the lead screw is a smooth rod; a top plate is provided on the top of the lead screw, and the lead screw is rotatably connected to the top plate; a base is provided at the bottom of the smooth rod, and the smooth rod is rotatably connected to the base; a turntable is fixedly installed on the smooth rod; a movable seat is provided on the lead screw, and the clamp includes two sets of clamp arms arranged up and down, one end of the clamp arm is fixedly connected to the movable seat, and the clamp arm is slidably connected to the first sliding rod and the second sliding rod.

[0010] Preferably, a first suction cup pointing vertically downward is provided at the bottom of the fixing seat, and the first suction cup is inserted into the interior of the elastic seat.

[0011] Preferably, the clamping arm includes a core plate arranged inside and an air bag wrapped outside the core plate.

[0012] Preferably, a plurality of folds are provided on the airbag.

[0013] Preferably, a plurality of second suction cups are provided on the airbag, and the second suction cups are installed at the folded portion.

[0014] Preferably, the elastic seat is provided with a plurality of air outlet holes for facilitating gas circulation.

[0015] Preferably, the hand wheel is wrapped with an anti-slip layer.

[0016] Preferably, rubber covering members are provided on the groove walls of the first mounting groove and the second mounting groove.

[0017] The above-mentioned technical scheme of the present invention has the following beneficial technical effects: in the present invention, the test bench is a horizontal workbench, and the test bench is covered with a layer of magnetic attraction plate; a plurality of fixed seats are arranged and are all located on the test bench; during actual use, the hand wheel is turned, and the hand wheel drives the substrate and the magnet inside the fixed seat to move upward, so that the magnet is separated from the magnetic attraction plate; at this time, the fixed seat can be easily moved to any position on the test bench; then, the hand wheel is turned downward, the substrate and the magnet move downward, the air inside the elastic seat is discharged from the air outlet, the elastic seat is gradually contracted by force, the magnet and the magnetic attraction plate are adsorbed together, and the position of the fixed seat is fixed; then, the flexible material is clamped in the fixture; respectively rotate The rotating disk in the first mounting groove and the second mounting groove is driven; the rotation of the rotating disk drives the screw rod to rotate, thereby respectively driving the two clamping arms to move up and down in the first mounting groove and the second mounting groove; the rotating disk is rotated so that the two clamping arms clamp the flexible material; the outside of the clamping arm is wrapped with an airbag; the airbag will undergo elastic deformation when squeezed, and the side of the airbag that is squeezed gradually unfolds the folded part to expose the second suction cup; the second suction cup is adsorbed together with the surface of the flexible material, thereby ensuring that the flexible material is fixed on the clamp; the present invention can adjust the height of the clamp, and can clamp flexible materials of different thicknesses; in addition, the fixing seat itself can be adjusted at any position of the test bench, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a fixture and a fixing device for testing the properties of flexible materials proposed in the present invention.

[0019] Figure 2 This is a schematic diagram of the internal structure of a fixture for testing the properties of flexible materials and a fixing seat in a fixing device provided by the present invention.

[0020] Figure 3 This is a schematic structural diagram of a fixture for testing the properties of flexible materials and a mounting seat in a fixing device provided by the present invention.

[0021] Figure 4 The figure is a schematic diagram of the installation structure of the clamp arm in the fixture and the fixing device for testing the performance of flexible materials proposed by the present invention.

[0022] Figure 5 This is a schematic diagram of the enlarged structure of the clamp arm in the fixture and fixing device for testing the properties of flexible materials proposed by the present invention.

[0023] Figure numerals: 1. test bench; 2. magnetic plate; 3. hand wheel; 4. threaded rod; 5. fixed seat; 6. elastic seat; 7. clamp; 8. mounting seat; 9. mounting chamber; 10. base plate; 11. magnet; 12. first suction cup; 13. air outlet; 14. first mounting groove; 15. first slide bar; 16. second slide bar; 17. second mounting groove; 18. screw rod; 19. top plate; 20. movable seat; 21. clamp arm; 22. turntable; 23. base; 24. air bag; 25. second suction cup. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0025] like Figure 1-5 As shown, a fixture and a fixing device for testing the performance of a flexible material proposed in the present invention include a test bench 1, a fixing seat 5, a mounting seat 8 and a fixture 7;

[0026] The test bench 1 is a horizontal workbench, and a layer of magnetic attraction plate 2 is covered on the test bench 1; a plurality of fixed seats 5 are provided and all are located on the test bench 1; an elastic seat 6 is provided at the bottom of the fixed seat 5, and an opening is provided at the bottom of the elastic seat 6; a mounting chamber 9 is provided inside the fixed seat 5, a base plate 10 is provided inside the mounting chamber 9, a threaded rod 4 is provided on the top of the base plate 10, the threaded rod 4 passes through the mounting chamber 9 and extends out of the fixed seat 5, a hand wheel 3 is provided on the top of the threaded rod 4, and the hand wheel 3 is transmission-connected to the threaded rod 4; a magnet 11 is provided at the bottom of the base plate 10, and the magnet 11 is magnetically connected to the magnetic attraction plate 2;

[0027] The mounting seat 8 is arranged on one side of the fixed seat 5; the first mounting groove 14, the first slide bar 15, the second slide bar 16 and the second mounting groove 17 are vertically arranged on the mounting seat 8 from left to right in sequence; the first mounting groove 14 and the second mounting groove 17 are vertically arranged with a screw rod 18; the bottom of the screw rod 18 is a smooth rod; the top of the screw rod 18 is provided with a top plate 19, and the screw rod 18 is rotatably connected to the top plate 19; the bottom of the smooth rod is provided with a base 23, and the smooth rod is rotatably connected to the base 23; a turntable 22 is fixedly installed on the smooth rod; a movable seat 20 is provided on the screw rod 18, and the clamp 7 includes two sets of clamp arms 21 arranged up and down, one end of the clamp arm 21 is fixedly connected to the movable seat 20, and the clamp arm 21 is slidably connected to the first slide bar 15 and the second slide bar 16.

[0028] In the present invention, the test bench 1 is a horizontal workbench, and a layer of magnetic attraction plate 2 is covered on the test bench 1; a plurality of fixing seats 5 are arranged and all are located on the test bench 1; during actual use, the hand wheel 3 is turned, and the hand wheel 3 drives the substrate 10 and the magnet 11 inside the fixing seat 5 to move upward, so that the magnet 11 is separated from the magnetic attraction plate 2; at this time, the fixing seat 5 can be easily moved to any position on the test bench 1; then the hand wheel 3 is turned downward, the substrate 10 and the magnet 11 move downward, and the air inside the elastic seat 6 is discharged from the air outlet 13, the elastic seat 6 is gradually contracted by the force, the magnet 11 is adsorbed together with the magnetic attraction plate 2, and the position of the fixing seat 5 is fixed; then, the flexible material is clamped in the fixture 7; the first mounting groove 14 and the second mounting groove are rotated respectively The turntable 22 in 17; the rotation of the turntable 22 drives the screw rod 18 to rotate, thereby driving the two clamping arms 21 to move up and down in the first installation groove 14 and the second installation groove 17 respectively; the turntable 22 is rotated so that the two clamping arms 21 clamp the flexible material; the outside of the clamping arm 21 is wrapped with an airbag 24; the airbag 24 will undergo elastic deformation when squeezed, and the side of the airbag 24 that is squeezed gradually unfolds the folded part, exposing the second suction cup 25; the second suction cup 25 is adsorbed together with the surface of the flexible material, thereby ensuring that the flexible material is fixed on the clamp 7; the present invention can adjust the height of the clamp 7, and can clamp flexible materials of different thicknesses; in addition, the fixing seat 5 itself can be adjusted at any position of the test bench 1, which is more convenient to use.

[0029] In an optional embodiment, a first suction cup 12 pointing vertically downward is disposed at the bottom of the fixing seat 5 , and the first suction cup 12 is inserted into the interior of the elastic seat 6 .

[0030] In an optional embodiment, the clamp arm 21 includes a core plate disposed inside and an air bag 24 wrapped outside the core plate.

[0031] In an optional embodiment, a plurality of pleats are provided on the airbag 24 .

[0032] In an optional embodiment, a plurality of second suction cups 25 are provided on the airbag 24, and the second suction cups 25 are installed at the folded portion.

[0033] It should be noted that the outside of the clamp arm 21 is wrapped with an airbag 24; the airbag 24 will undergo elastic deformation when squeezed, and the squeezed side of the airbag 24 will gradually unfold the folded part, exposing the second suction cup 25; the second suction cup 25 is adsorbed together with the surface of the flexible material, thereby ensuring that the flexible material is fixed on the clamp 7.

[0034] In an optional embodiment, the elastic seat 6 is provided with a plurality of gas outlet holes 13 for facilitating gas circulation.

[0035] It should be noted that after the gas in the elastic seat 6 is discharged from the air outlet 13, the elastic seat 6 is gradually contracted by force; the magnet 11 is magnetically attracted to the magnetic suction plate 2, and at the same time, the first suction cup 12 is in contact with the magnetic suction plate 2, playing a role of auxiliary adsorption.

[0036] In an optional embodiment, the hand wheel 3 is wrapped with an anti-slip layer.

[0037] It should be noted that the anti-skid layer can increase the friction force, so that the hand wheel 3 will not slip when it is turned.

[0038] In an optional embodiment, rubber covering members are provided on the groove walls of the first installation groove 14 and the second installation groove 17 .

[0039] It should be noted that, when the clamp arm 21 and the movable seat 20 move up and down in the first installation groove 14 or the second installation groove 17 , the rubber cover can play a protective role and reduce the wear of the clamp arm 21 .

[0040] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A fixture and a fixing device for testing the performance of flexible materials, characterized in that: It comprises a test bench (1), a fixing seat (5), a mounting seat (8) and a fixture (7); The test bench (1) is a horizontal workbench, and the test bench (1) is covered with a layer of magnetic attraction plate (2); a plurality of fixed seats (5) are provided and all are located on the test bench (1); an elastic seat (6) is provided at the bottom of the fixed seat (5), and an opening is provided at the bottom of the elastic seat (6); an installation chamber (9) is provided inside the fixed seat (5), a base plate (10) is provided inside the installation chamber (9), a threaded rod (4) is provided at the top of the base plate (10), the threaded rod (4) passes through the installation chamber (9) and extends out of the fixed seat (5), a hand wheel (3) is provided at the top of the threaded rod (4), and the hand wheel (3) is transmission-connected to the threaded rod (4); a magnet (11) is provided at the bottom of the base plate (10), and the magnet (11) is magnetically connected to the magnetic attraction plate (2); The mounting seat (8) is arranged on one side of the fixed seat (5); the mounting seat (8) is vertically provided with a first mounting groove (14), a first sliding rod (15), a second sliding rod (16) and a second mounting groove (17) in sequence from left to right; a screw rod (18) is vertically provided inside the first mounting groove (14) and the second mounting groove (17); the bottom of the screw rod (18) is a smooth rod; a top plate (19) is provided on the top of the screw rod (18), and the screw rod (18) is rotatably connected to the top plate (19); a base (23) is provided at the bottom of the smooth rod, and the smooth rod is rotatably connected to the base (23); a turntable (22) is fixedly installed on the smooth rod; a movable seat (20) is provided on the screw rod (18), and the clamp (7) includes two groups of clamp arms (21) arranged up and down, one end of the clamp arm (21) is fixedly connected to the movable seat (20), and the clamp arm (21) is slidably connected to the first sliding rod (15) and the second sliding rod (16); The clamp arm (21) comprises a core plate arranged inside and an air bag (24) wrapped outside the core plate; a plurality of folded parts are arranged on the air bag (24); a plurality of second suction cups (25) are arranged on the air bag (24), and the second suction cups (25) are installed at the folded parts.

2. The fixture and fixture for testing the performance of flexible materials according to claim 1, characterized in that: A first suction cup (12) is arranged vertically downward at the bottom of the fixing seat (5), and the first suction cup (12) is inserted into the interior of the elastic seat (6).

3. The fixture and fixture for testing the performance of flexible materials according to claim 1, characterized in that: The elastic seat (6) is provided with a plurality of gas outlet holes (13) for facilitating gas circulation.

4. The fixture and fixture for testing the performance of flexible materials according to claim 1, characterized in that: The hand wheel (3) is wrapped with an anti-skid layer.

5. The fixture and fixture for testing the performance of flexible materials according to claim 1, characterized in that: Rubber covering parts are arranged on the groove walls of the first installation groove (14) and the second installation groove (17).

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