CN220650285U - Manual wedge-shaped clamp for tensile testing machine - Google Patents

Abstract

The utility model discloses a manual wedge-shaped clamp for a tensile testing machine, which belongs to the technical field of tensile testing machines and comprises the following components: the top of main part is connected and is fixed with the rack, the top of rack is connected and is fixed with the support, the inside grafting of support is connected with the connecting piece, the top connection of connecting piece is fixed with fixture, the inside block of support is connected with spacing subassembly, press the movable strip motion of pressing the piece drive its one side for the joint piece of its outer wall inwards moves, then place the inside of support with spacing, be connected between connecting piece and the support, make it install firmly, when need dismantle it, press the movable strip motion of pressing the piece drive its one side, make the joint piece inwards movement of its outer wall, the pulling spacing strip, pull out the inside of support with spacing strip, dismantle it, thereby be convenient for dismantle fixture at connecting piece top, can be convenient for maintain and change the fixture at connecting piece top.

Description

Manual wedge-shaped clamp for tensile testing machine

Technical Field

The utility model relates to the technical field of tensile testing machines, in particular to a manual wedge-shaped clamp for a tensile testing machine.

Background

The tensile testing machine is also called a universal material testing machine. The universal testing machine is used for mechanical stress application for mechanical property tests of various materials such as static load, stretching, compression, bending, shearing, tearing and stripping of instruments and equipment, is suitable for various physical and mechanical property tests of materials such as plastic plates, pipes, profiles, plastic films, rubber, wires, cables, steel, glass fibers and the like, is developed as a material, is an indispensable detection device for physical property tests, teaching researches, quality control and the like, and is an important factor for whether the test can be successfully carried out and the accuracy of test results because a tensile machine clamp is used as an important component of the instrument and different materials need different clamps.

At present, as in the patent publication number CN206300836U, the utility model discloses a clamp for a tensile testing machine, which comprises a clamp body, wherein one side of the clamp body is provided with a mounting part, the other side of the clamp body opposite to the mounting part is provided with a trapezoid opening, the rear end face of the trapezoid opening is provided with a baffle, a clamping part consisting of a first clamping plate and a second clamping plate is arranged in the trapezoid opening, the shape of the clamping part is the same as that of the trapezoid opening, the size of the clamping part is smaller than that of the trapezoid opening, the clamp body is provided with an adjusting part capable of enabling the clamping plate to move up and down along the trapezoid opening, the end face of the first clamping plate is provided with an anti-slip structure, and the end face of the first clamping plate is also provided with a groove which is longitudinally arranged. According to the utility model, the structure of the clamping surface of the clamping piece is changed, so that the clamping piece is simultaneously suitable for tension tests of the dumbbell test piece and the strip-shaped test strip, the strip-shaped test strip is effectively prevented from being broken at the inner side of the clamping plate during tension tests, and the accuracy and stability of the test are ensured.

The main beneficial effects that produce are: according to the utility model, the structure of the contact surface of the clamping plate is changed, so that the situation that the test strip is broken due to the shearing force generated by clamping is effectively avoided under the condition that the friction force is not reduced, and meanwhile, the clamping force of the clamping plate is ensured to be equal by changing the structure of the clamping plate under the action of automatic stress, so that the test strip is uniformly stressed, and the accuracy of a test result is ensured.

The technical problems which are mainly solved by the utility model are as follows: the existing clamp of the testing machine is a screwing type clamp, namely, the clamp plates are manually adjusted to clamp the test strip, and because the force of the clamp plates which are rotationally fixed by the upper clamp and the lower clamp in the working process is different, the test strip is unevenly stressed in the tensile testing process, the test strip is easily broken at the edge of the clamp plates due to the fact that one side which is too tight in clamping, and the testing result is also inaccurate.

For the description of the above patent, the applicant believes that although the applicant solves the corresponding technical problem, the technical solution still has drawbacks in other respects, in particular as follows:

the conventional clamp of the tensile testing machine is a wedge-shaped clamp, the load of a sample can be guaranteed to be completely and uniformly distributed along the tensile axial direction as far as possible, the product is required to be clamped in the test process, different products are required to be clamped due to different test purposes, the requirement on the clamp is improved accordingly, the conventional testing machine is provided with a fixed clamp, the clamping size of the product is relatively fixed, different clamps are required to be arranged according to different test requirements, and the test convenience is low.

Disclosure of Invention

This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.

The conventional clamp for the tensile testing machine is a wedge-shaped clamp, so that the sample load can be ensured to be uniformly distributed along the tensile axial direction as far as possible, products are required to be clamped in the testing process, different products are required to be clamped due to different testing purposes, the requirements on the clamp are improved accordingly, the conventional clamp for the tensile testing machine is provided with a fixed clamp, the clamping size of the products is relatively fixed, different clamps are required to be arranged according to different testing requirements, and the testing convenience is low.

In order to solve the technical problems, the utility model provides a manual wedge-shaped clamp for a tensile testing machine, which comprises the following components: the device comprises a main body, wherein the top of the main body is fixedly connected with a placing rack, the top of the placing rack is fixedly connected with a bracket, a connecting piece is connected in an inserted manner in the bracket, a clamping mechanism is fixedly connected at the top of the connecting piece, and a limiting assembly is connected in a clamping manner in the bracket;

the limiting assembly comprises a limiting strip which is connected inside the support in a clamping mode, a movable groove is formed in the limiting strip, a connecting plate is fixedly connected to the inner portion of the movable groove, a movable strip is fixedly connected to the bottom of the connecting plate, and a clamping block is fixedly connected to one side of the movable strip.

Through adopting above-mentioned technical scheme, this scheme is convenient for dismantle fast and change fixture through spacing subassembly's setting and use.

Optionally, the outer wall connection of movable strip is fixed with presses the briquetting, spacing groove has been seted up to the inside of spacing, the inner wall in spacing groove and the outer wall sliding connection of pressing the briquetting.

Through adopting above-mentioned technical scheme, this scheme can be to the position of movable strip adjusting through setting up and the use of pressing piece and spacing groove.

Optionally, the number of the movable strips is two, and the two movable strips are symmetrically arranged by taking the vertical central line of the limiting strip as a symmetrical axis, and the outer wall of the movable strip is fixedly connected with a spring.

Through adopting above-mentioned technical scheme, this scheme is through the setting and the use of a plurality of movable strips and the fixed spring of outer wall connection, can realize the quick resilience of resetting of movable strip.

Optionally, the internally connected of rack is fixed with the gag lever post, the outer wall sliding connection of gag lever post has electromagnetic slide, the top of gag lever post is connected and is fixed with the electromagnetic block.

Through adopting above-mentioned technical scheme, this scheme can be to the position of electromagnetic slide block adjusting through setting up and the use of gag lever post, electromagnetic slide block and electromagnetic block.

Optionally, fixture includes the framework, the inside rotation of framework is connected with the ratch, the outer wall connection of ratch is fixed with the interlock pole, the bottom connection of interlock pole is fixed with the wedge, one side laminating of wedge is connected with the sliding block, the bottom connection of sliding block is fixed with the clamp splice, fixture is still including connecting the depression bar of fixing at the ratch outer wall, the outer wall connection of ratch is fixed with the connector link, the bottom and the interlock pole connection of connector link are fixed, fixture is still including seting up the movable chamber inside the framework, the inner wall in movable chamber and the outer wall sliding connection of sliding block, fixture's quantity is two, two fixture's bottom respectively with the top of connecting piece and the bottom connection of electromagnetism slider are fixed.

Through adopting above-mentioned technical scheme, this scheme drives the ratch through rotating the depression bar and rotates, the ratch drives and drives the interlock pole motion through the connector link, thereby drive the wedge motion of interlock pole bottom, the wedge promotes the inside motion of sliding block in the activity chamber, further the clamp splice motion of driving the sliding block bottom, centre gripping to the product, simultaneously through adjusting the position of clamp splice, can adjust the centre gripping size of device when can carrying out the centre gripping to the product, make the device centre gripping firm simultaneously, the effectual application scope of having enlarged the device, and it is simple convenient when using, people use, the setting and the use of depression bar can drive the ratch, the setting and the use of connector link ensure its performance when can drive the interlock pole, the setting and the use of activity chamber can carry out spacing while guaranteeing its travelling behavior to the sliding block, the setting and the use of a plurality of clamping mechanisms can carry out fine regulation to the product of different sizes.

Optionally, the bottom of connecting piece is connected and is fixed with protruding piece, protruding piece's outer wall and the inside grafting of support are connected, and protruding piece and the inside grafting groove's of support size identical.

Through adopting above-mentioned technical scheme, the setting and the use of protruding piece for be connected firmly between connecting piece and the support.

Optionally, the mounting hole has been seted up to the inside of protruding piece, spacing subassembly's one end runs through the inside of mounting hole and extends to the inside of support and the inside block connection of support.

Through adopting above-mentioned technical scheme, this scheme is through the connection and the use of mounting hole and spacing subassembly, can carry out further fixed between protruding piece and the support.

Optionally, the bottom of main part is connected and is fixed with the bottom plate, the inside threaded connection of bottom plate has the expansion bolt.

Through adopting above-mentioned technical scheme, this scheme can carry out fine fixing through setting up and use of bottom plate and expansion bolts to the device.

In summary, the present utility model includes at least one of the following beneficial effects:

1. the movable strip on one side of the connecting piece is driven to move by pressing the pressing block, so that the clamping block on the outer wall of the connecting piece moves inwards, then the limiting strip is placed in the bracket, the connecting piece and the bracket are connected, so that the connecting piece is stably installed, when the connecting piece needs to be disassembled, the movable strip on one side of the connecting piece is driven by pressing the pressing block to move, the clamping block on the outer wall of the connecting piece moves inwards, the limiting strip is pulled to pull the limiting strip out of the bracket, and the limiting strip is disassembled, so that the clamping mechanism is convenient to disassemble, the connecting piece is suitable for different products, and the clamping mechanism on the top of the connecting piece can be conveniently maintained and replaced, so that the convenience of the device is improved;

2. the electromagnetic block is started to drive the electromagnetic slide block to slide on the outer wall of the limiting rod, so that the position of the electromagnetic slide block is adjusted, the position between the two clamping mechanisms is adjusted, products with different heights can be clamped and fixed, subsequent treatment on different products is facilitated, the applicability of the device is further improved, and the adjustability of the device is effectively improved;

3. the rack is driven to rotate through the rotary compression bar, the rack drives to drive the motion of the linkage rod through the connector link to drive the wedge motion of linkage rod bottom, the wedge promotes the internal motion of sliding block in the activity chamber, further drives the clamp splice motion of sliding block bottom, carries out the centre gripping to the product, simultaneously through adjusting the position of clamp splice, can adjust the centre gripping size of device when can carrying out the centre gripping to the product, make the device centre gripping firm simultaneously, the effectual application scope that enlarges the device, and it is simple convenient when using, people's use of being convenient for.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a three-dimensional overall structure of a first view of the present utility model;

FIG. 2 is a schematic view of a connection structure between a connector and a bump according to a second aspect of the present utility model;

FIG. 3 is a schematic view of a third embodiment of a spacing assembly according to the present utility model;

fig. 4 is a schematic view of a fourth embodiment of a clamping mechanism according to the present utility model

Fig. 5 is a schematic diagram of a connection structure between a frame and a rack in view angle five of the present utility model.

Reference numerals illustrate:

1. a main body; 2. a placing rack; 3. a bracket; 4. a connecting piece; 5. a limit rod; 6. an electromagnetic slide block; 7. an electromagnetic block; 8. a clamping mechanism; 801. a frame; 802. a toothed bar; 803. a compression bar; 804. a connecting buckle; 805. a linkage rod; 806. wedge blocks; 807. a movable cavity; 808. a sliding block; 809. clamping blocks; 9. a protruding member; 10. a mounting hole; 11. a limit component; 1101. a limit bar; 1102. a movable groove; 1103. a connecting plate; 1104. a movable bar; 1105. a clamping block; 1106. pressing the blocks; 1107. a limit groove; 1108. a spring; 12. a bottom plate; 13. and (5) expanding the bolt.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1, 2 and 3, a conventional clamp for a tensile testing machine is a wedge-shaped clamp, which can ensure that sample loads are uniformly distributed along a tensile axis as far as possible, and in a testing process, products need to be clamped, and different products need to be clamped due to different testing purposes, so that requirements on the clamp are improved, and a fixed clamp is installed on the conventional testing machine, so that clamping sizes of the products are relatively fixed, different clamping devices are required to be equipped for different testing requirements, and testing convenience is achieved. The device comprises a main body 1, wherein a placing frame 2 is fixedly connected to the top of the main body 1, a support 3 is fixedly connected to the top of the placing frame 2, a connecting piece 4 is connected in an inserted mode in the support 3, a clamping mechanism 8 is fixedly connected to the top of the connecting piece 4, and a limiting assembly 11 is connected to the inner clamping of the support 3;

the spacing subassembly 11 includes the block connection at the inside spacing 1101 of support 3, the movable groove 1102 has been seted up to the inside that spacing 1101 sent, the internal connection of movable groove 1102 is fixed with connecting plate 1103, the bottom of connecting plate 1103 is connected and is fixed with movable strip 1104, one side of movable strip 1104 is connected and is fixed with joint piece 1105, the outer wall connection of movable strip 1104 is fixed with presses the piece 1106, spacing 1107 has been seted up to the inside of spacing 1101, the inner wall of spacing 1107 and the outer wall sliding connection of pressing the piece 1106, the quantity of movable strip 1104 is two, and two movable strips 1104 use the perpendicular central line of spacing 1101 to set up for symmetry axisymmetry, the outer wall connection of movable strip 1104 is fixed with spring 1108.

The specific working principle is as follows: the movable strip 1104 on one side of the connecting piece is driven to move by pressing the pressing block 1106, so that the clamping block 1105 on the outer wall of the connecting piece moves inwards, then the limiting strip 1101 is placed in the support 3, the connecting piece 4 and the support 3 are connected, the installation is stable, when the connecting piece needs to be disassembled, the movable strip 1104 on one side of the connecting piece is driven to move by pressing the pressing block 1106, the clamping block 1105 on the outer wall of the connecting piece moves inwards, the limiting strip 1101 is pulled out from the support 3, the clamping block 1105 on the outer wall of the connecting piece is disassembled, the clamping mechanism 8 is conveniently disassembled, the connecting piece is applicable to different products, and the clamping mechanism 8 at the top of the connecting piece 4 can be conveniently maintained and replaced, so that the convenience of the device is improved.

In a second embodiment, referring to fig. 1, a currently used clamp has a relatively fixed clamping height during clamping of a product, and a relatively single applicable size during clamping, so that the device has relatively high limitation, a relatively small application range, and is inconvenient for processing a part of the product, including: the internal connection of rack 2 is fixed with gag lever post 5, and the outer wall sliding connection of gag lever post 5 has electromagnetic slide 6, and the top of gag lever post 5 is connected and is fixed with electromagnetic block 7, and fixture 8's quantity is two, and the bottom of two fixture 8 is connected fixedly with the top of connecting piece 4 and the bottom of electromagnetic slide 6 respectively.

The specific working principle is as follows: the electromagnetic block 7 is started to drive the electromagnetic slide block 6 to slide on the outer wall of the limit rod 5, so that the position of the electromagnetic slide block 6 is adjusted to the position of the clamping mechanism 8 at the bottom of the electromagnetic slide block 6, and therefore products with different heights can be clamped and fixed, subsequent treatment on the different products is facilitated, the applicability of the device is further improved, and the adjustability of the device is effectively improved.

In order to solve the problem that the application range of the existing clamp is smaller due to inconvenient adjustment of the application size of the existing clamp when the existing clamp is used, referring to fig. 1, 4 and 5, the utility model discloses a manual wedge-shaped clamp for a tensile testing machine, comprising: the fixture 8 includes the framework 801, the inside rotation of framework 801 is connected with rack 802, the outer wall connection of rack 802 is fixed with interlock pole 805, the bottom connection of interlock pole 805 is fixed with wedge 806, one side laminating of wedge 806 is connected with slider 808, the bottom connection of slider 808 is fixed with clamp block 809, fixture 8 is still including connecting the depression bar 803 of fixing at rack 802 outer wall, the outer wall connection of rack 802 is fixed with connector link 804, the bottom of connector link 804 is connected fixedly with interlock pole 805, fixture 8 is still including seting up the movable chamber 807 in the inside of framework 801, the inner wall of movable chamber 807 and the outer wall sliding connection of slider 808, the bottom connection of connector 4 is fixed with protruding piece 9, the outer wall of protruding piece 9 is connected with the inside grafting of support 3, and protruding piece 9 is identical with the inside spliced groove's of support 3 size, mounting hole 10 has been seted up to the inside of protruding piece 9, the one end of spacing subassembly 11 runs through the inside of mounting hole 10 and extends to the inside of support 3 and the inside block connection of support 3, the bottom connection of main part 1 is fixed with bottom plate 12, the inside of support plate 12 is connected with the inside screw thread 13 of expansion bolt 13.

The specific working principle is as follows: the toothed bar 802 is driven to rotate through the rotary compression bar 803, the toothed bar 802 drives the linkage bar 805 to move through the connecting buckle 804, thereby the wedge block 806 at the bottom end of the linkage bar 805 is driven to move, the wedge block 806 pushes the sliding block 808 to move in the movable cavity 807, the clamping block 809 at the bottom of the sliding block 808 is further driven to move, the product is clamped, the clamping size of the device can be adjusted while the product is clamped by adjusting the position of the clamping block 809, the device is clamped firmly, the application range of the device is effectively enlarged, the device is simple and convenient to use, people can use, the setting and the use of the compression bar 803 can drive the toothed bar 802, the setting and the use of the connecting buckle 804 can guarantee the performance of the linkage bar 805 while the driving of the linkage bar 805, the setting and the use of the movable cavity 807 can limit the sliding block 808, the movable performance of the sliding block 808 can be well fixed while the limiting assembly is guaranteed by the setting and the use of the bottom plate 12 and the expansion bolt 13, the limiting assembly 11 is pulled out of the inside of the bracket 3 and the expansion piece 9 and the connecting piece 4 is detached from the clamping mechanism 8.

Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims (8)

1. The utility model provides a manual wedge anchor clamps for tensile testing machine which characterized in that includes: the novel clamping device comprises a main body (1), wherein a placement frame (2) is fixedly connected to the top of the main body (1), a support (3) is fixedly connected to the top of the placement frame (2), a connecting piece (4) is connected to the inside of the support (3) in a plug-in connection mode, a clamping mechanism (8) is fixedly connected to the top of the connecting piece (4), and a limiting assembly (11) is connected to the inside of the support (3) in a clamping mode;

spacing subassembly (11) are including block connection at inside spacing (1101) of support (3), movable groove (1102) have been seted up to the inside that spacing (1101) sent, the internal connection of movable groove (1102) is fixed with connecting plate (1103), the bottom connection of connecting plate (1103) is fixed with movable strip (1104), one side of movable strip (1104) is connected and is fixed with joint piece (1105).

2. The manual wedge clamp for a tensile testing machine according to claim 1, wherein: the outer wall connection of movable strip (1104) is fixed with presses briquetting (1106), spacing groove (1107) have been seted up to the inside of spacing strip (1101), the inner wall of spacing groove (1107) and the outer wall sliding connection of pressing briquetting (1106).

3. The manual wedge clamp for a tensile testing machine according to claim 1, wherein: the number of the movable strips (1104) is two, the two movable strips (1104) are symmetrically arranged by taking the vertical central line of the limit strip (1101) as a symmetry axis, and the outer wall of the movable strip (1104) is fixedly connected with a spring (1108).

4. The manual wedge clamp for a tensile testing machine according to claim 1, wherein: the utility model discloses a rack, including rack (2), fixed connection, electromagnetic block (7) and locating lever (5), the internal connection of rack (2) is fixed with gag lever post (5), the outer wall sliding connection of gag lever post (5) has electromagnetic slide (6), the top of gag lever post (5) is connected and is fixed with electromagnetic block (7).

5. The manual wedge clamp for a tensile testing machine according to claim 1, wherein: clamping mechanism (8) are including framework (801), the inside rotation of framework (801) is connected with rack bar (802), the outer wall connection of rack bar (802) is fixed with interlock pole (805), the bottom connection of interlock pole (805) is fixed with wedge (806), one side laminating of wedge (806) is connected with slider (808), the bottom connection of slider (808) is fixed with clamp splice (809), clamping mechanism (8) are still including connecting depression bar (803) of fixing at rack bar (802) outer wall, the outer wall connection of rack bar (802) is fixed with connector link (804), the bottom of connector link (804) is fixed with interlock pole (805) connection, clamping mechanism (8) are still including seting up in the inside movable chamber (807) of framework (801), the inner wall of movable chamber (807) is connected with the outer wall sliding connection of slider (808) the quantity of clamping mechanism (8) is two the bottom of clamping mechanism (8) is fixed with the bottom of slider (4) and slider (6) respectively.

6. The manual wedge clamp for a tensile testing machine according to claim 1, wherein: the bottom of the connecting piece (4) is fixedly connected with a protruding piece (9), the outer wall of the protruding piece (9) is connected with the inside of the bracket (3) in a plug-in mode, and the protruding piece (9) is matched with the inside plug-in groove of the bracket (3) in size.

7. The manual wedge clamp for a tensile testing machine of claim 6, wherein: the inside of protruding piece (9) has seted up mounting hole (10), the inside of mounting hole (10) is run through to the one end of spacing subassembly (11) and extend to the inside of support (3) and the inside block connection of support (3).

8. The manual wedge clamp for a tensile testing machine according to claim 1, wherein: the bottom of the main body (1) is fixedly connected with a bottom plate (12), and an expansion bolt (13) is connected with the inside of the bottom plate (12) in a threaded manner.