CN201107231Y

CN201107231Y - Winding type wideband drawing clamp

Info

Publication number: CN201107231Y
Application number: CNU2007200271028U
Authority: CN
Inventors: 王洪周; 庞国栋
Original assignee: SHIJIN GROUP CO Ltd JINAN
Current assignee: SHIJIN GROUP CO Ltd JINAN
Priority date: 2007-08-27
Filing date: 2007-08-27
Publication date: 2008-08-27
Anticipated expiration: 2017-08-27

Abstract

The utility model relates to a winded type wide band stretching clamping device, which comprises an upper clamping head and a lower clamping head, wherein, the upper clamping head comprises a base provided with a connecting piece, a connecting plate fixed on the base, and an upper pressed block and a lower pressed block connected with the connecting plate; the lower clamping head comprises a base seat provided with a connecting piece, a connecting plate fixed on the base, and an upper pressed block and a lower pressed block connected with the connecting plate, a spring base provided with a screw rod and fixed on the connecting plate, and a reset spring installed on the screw rod. A connecting block is fixed on the upper pressed block, and a handle bolt used for driving the upper pressed block to separate from the lower pressed block is installed on the connecting block. The reset spring adopts a pressure spring, the winded type wide band stretching clamping device has the advantages that the winded type wide band stretching clamping device adopts the effective, reliable and convenient winded type structure, the test sample is not easy to be damaged; the structure is simple, the cost is low, the operation is convenient, and the winded type wide band stretching clamping device is suitable for promotion and application.

Description

Wound form broadband stretching clamp

(1) technical field

The utility model relates to the stretching clamp technical field of the tension test that is used for various Material Testing Machine, especially a kind of survivable sample be used for wound form broadband stretching clamp to wide nonmetal sample tension test.

(2) background technology

At present, the frame mode that the stretching that Material Testing Machine is used attaches common employing has the afterburning wedge type of rotation to stretch to attach, wafer type stretches and attaches, lever stretches and attaches, eccentric wheel clamps to stretch and version such as attaches, these connected modes respectively have characteristics: rotating afterburning wedge type tensile characteristics is that the clamping test button is reliable, but because the excessive easy destruction sample of holding force, and operation is difficult for comparatively speaking, is not suitable for nonmetal and little load tension test; Wafer type stretches to attach and share in nonmetal and little load tension test, but because the both sides rotation that needs that this stretching attaches clamps, unsuitable centering, clamping is also wasted time and energy, and clamping is extremely inconvenient; The clamping that the lever stretching attaches is convenient but holding force is wayward, easily too small the and nonmetal sample of the easy destruction of jaw of holding force; Eccentric wheel clamps to stretch to attach because be and contacts with sample line not to be suitable for plastic sheeting and ribbon stretching.

(3) summary of the invention

The utility model solves provides a kind of simple in structure, effective, reliably, survivable sample is used for wound form broadband stretching clamp to wide nonmetal sample tension test easily.

The utility model is realized by following measure: a kind of wound form broadband stretching clamp, comprise upper grip, lower chuck, described upper grip comprises the base that has connector, is fixed on the web joint on the base, link to each other with web joint upper holder block, lower lock block; Described lower chuck comprises the base that has connector, is fixed on the web joint on the base, and the upper holder block that links to each other with web joint, lower lock block are fixed on the spring pedestal on the leading screw of having on the web joint, and back-moving spring is installed on the leading screw.

The further improvement of the utility model part is: be fixed with contiguous block on the described upper holder block, be equipped with on the contiguous block and be used to drive the handle bolt that upper holder block leaves lower lock block.

Further improvements of the present utility model are: described back-moving spring is a stage clip.

In order better to embody the versatility of this product, described connector top has connecting hole, and available connecting pin is connected with fixed cross beam with the moving beam of various testing machines.

The beneficial effects of the utility model:

1. adopt the wound form structure effectively, reliably, survivable sample easily;

2. simple in structure, with low cost, easy to operate, suitable applying.

(4) description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Structural representation when Fig. 1 is use of the present utility model;

Fig. 2 is the structural representation of upper grip of the present utility model;

Fig. 3 is the structural representation of lower chuck of the present utility model.

1 connector among the figure, 2 bases, 3 web joints, 4 upper holder blocks, 5 lower lock blocks, 6 web joints, 7 spring pedestals, 8 leading screws, 9 handle bolts, 10 back-moving springs, 11 contiguous blocks, 12 lower lock blocks, 13 upper holder blocks.

The A main frame, B moving beam, C upper grip, D sample, E lower chuck, F worktable.

(5) embodiment

A kind of wound form broadband stretching clamp shown in Fig. 2 .3 comprises upper grip C, lower chuck E, and described upper grip C comprises the base 2 that has connector 1, is fixed on the web joint 3,6 on the base 2, link to each other with web joint 3,6 upper holder block 4, lower lock block 5; Described lower chuck comprises the base 2 that has connector 1, be fixed on the web joint 3,6 on the base 2, the lower lock block 12, the upper holder block 13 that link to each other with web joint 3,6 are fixed on the spring pedestal 7 on the leading screw 8 of having on the web joint, and back-moving spring 10 is installed on the leading screw 8.Be fixed with contiguous block 11 on the described upper holder block 13, be equipped with on the contiguous block 11 and be used to drive the handle bolt 9 that upper holder block leaves lower lock block.Described back-moving spring 10 is a stage clip.Described connector 1 top has connecting hole.

As shown in Figure 1 be used for being connected for the utility model with the electronic universal tester host A, during use, upper grip C is fixed on the moving beam B, at first the upper holder block 4 with upper grip C upwards draws back, and sample D is clamped in upper holder block 4, in the middle of the lower lock block 5, loose one's grip after sample D put into, upper holder block is clipped in the middle sample D under the gravity of self, utilizes sample D that upper and lower briquetting is twined together then, finishes the top clamping.

Lower chuck E is fixed on the worktable F, utilize handle bolt 9 down by, drive upper holder block 13 and move up, upper holder block 13 separates with lower lock block 12, in the middle of then sample D being placed on, after sample D puts into, release handle bolt 9, back-moving spring 10 promote contiguous block 11 and move, and upper holder block 13 is close lower lock block 12 under the drive of contiguous block 11, utilize sample D that upper and lower briquetting is twined together then, finish the lower part clamping.

After the two ends of sample D are all clamped by the utility model, can begin test, testing machine moving beam B moves up and finishes up to sample D tearing test.

Claims

1. wound form broadband stretching clamp, comprise upper grip, lower chuck, it is characterized in that: described upper grip comprises the base that has connector (1), is fixed on web joint (3), (6) on the base, link to each other with web joint (3), (6) upper holder block (4), lower lock block (5); Described lower chuck comprises the base that has connector (1), be fixed on web joint (3), (6) on the base, the upper holder block (13) that links to each other with web joint (3), (6), lower lock block (12), be fixed on the spring pedestal (7) on the leading screw (8) of having on the web joint, back-moving spring (10) is installed on the leading screw (8).

2. wound form according to claim 1 broadband stretching clamp is characterized in that: be fixed with contiguous block (11) on the described upper holder block (13), be equipped with on the contiguous block (11) and be used to drive the handle bolt (9) that upper holder block leaves lower lock block.

3. wound form according to claim 1 and 2 broadband stretching clamp is characterized in that: described back-moving spring (10) is a stage clip.

4. wound form according to claim 1 and 2 broadband stretching clamp is characterized in that: described connector (1) top has connecting hole.