CN212622034U

CN212622034U - Novel cutting knife test fixture

Info

Publication number: CN212622034U
Application number: CN202021421812.0U
Authority: CN
Inventors: 马龙
Original assignee: Wuxi Bokang Medical Apparatus Co ltd
Current assignee: Wuxi Bokang Medical Apparatus Co ltd
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2021-02-26
Anticipated expiration: 2030-07-17

Abstract

The utility model relates to a novel cutting knife test fixture, from the top down includes die cutter ejector pin and base, the die cutter ejector pin on be provided with the round pin shaft hole to on the pulling force machine removal plane in the top through round pin axle fixed connection, the base setting on the fixed plane under the pulling force machine, the base on be provided with cutting knife hole groove, cutting knife hole inslot be provided with the cutting knife, the cutting knife be "worker" font structure, the lower extreme of die cutter ejector pin be provided with top spare, top spare on be provided with "T" shape casting die that two left and right symmetries set up, "T" shape casting die with the cutting knife contact surface of "worker" font structure matches, can make the cutting knife atress even at the in-process of die cutter, has improved measured data's accuracy greatly.

Description

Novel cutting knife test fixture

Technical Field

The utility model belongs to the technical field of cutting knife test fixture technique and specifically relates to a novel cutting knife test fixture.

Background

In the prior art, the cutting anastomat comprises a nail box assembly and an anastomat sewing and cutting assembly, under the actual condition, the nail anvil assembly and the nail box base can travel for a certain angle under the action of a nail box elastic sheet, when a user triggers, a cutting knife moves forwards, the contact planes of the cutting knife and the nail anvil assembly are parallel, and therefore the cutting knife is free from the force in the vertical direction. When percussion, the cutting knife plane forms certain angle with the nail casket base, if the cutting knife intensity is too close very easily causes the cutting knife to warp, perhaps breaks and influences the safety in utilization of product, consequently needs to have a special accurate test cutting knife intensity device to realize in advance controlling the cutting knife quality, reduces the risk to the minimum.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve the problems existing in the background technology, a test tool fixture capable of simulating the real action path of a cutting knife is provided.

The utility model provides a technical scheme that its technical problem adopted is: a novel cutting knife test tool comprises a pressing knife ejector rod and a base from top to bottom, wherein a pin shaft hole is formed in the pressing knife ejector rod and fixedly connected to a tensile machine moving plane above the pressing knife ejector rod through a pin shaft, the base is arranged on a lower fixing plane of a tensile machine below the pressing knife ejector rod, a cutting knife hole groove is formed in the base, a cutting knife is arranged in the cutting knife hole groove, the cutting knife is of an I-shaped structure, a top piece is arranged at the lower end of the pressing knife ejector rod, two T-shaped pressing pieces which are symmetrically arranged on the left and the right are arranged on the top piece, the T-shaped pressing pieces are matched with a cutting knife contact surface of the I-shaped structure, and the cutting knife hole groove is of a cross structure;

furthermore, a tension pressure sensor is arranged between the moving plane of the tensile machine and the push rod of the pressing knife, so that stress data can be fed back to the tensile machine in time;

furthermore, the base of the utility model comprises a flat substrate and a hole groove platform arranged on the flat substrate, wherein the hole groove platform is provided with an upper vertical part, an inclined part and a lower vertical part which simulate the action path of the cutting knife when the cutting knife is triggered;

furthermore, the groove depth of the cutting knife hole groove of the utility model sequentially passes through the upper vertical part, the inclined part and the lower vertical part downwards, and during testing, the cutting knife moves without obstacles as the same as the actual action condition and then touches the inclined part;

further, put the angle of portion for vertical direction to one side be 45 degrees, the contained angle when cutting knife and nail casket base touching under the simulation true condition ensures test data's accuracy.

The utility model has the advantages that: the problem of exist among the background art is solved, the base is simulated according to cutting knife actual operating condition, has improved measured data's accuracy greatly, simulates out the cutting knife better at the in-process atress condition of percussion to and stress concentration department, the pressing knife ejector pin designs according to the cutting knife shape simultaneously, can make the cutting knife atress even at the in-process of pressing the sword.

Drawings

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

FIG. 2 is a schematic structural view of the present invention mounted on a tensile machine;

fig. 3 is a schematic view of the inclined angle state of the inclined part of the present invention.

In the figure: 1. pressing cutter ejector pin, 2, base, 3, round pin shaft hole, 4, tensile machine removal plane, 5, lower fixed plane, 6, cutting cutter hole groove, 7, cutting knife, 8, top spare, 9, "T" shape casting die, 10, pulling force pressure sensor, 11, dull and stereotyped basement, 12, hole groove platform, 13, go up vertical portion, 14, skew portion, 15, vertical portion down.

Detailed Description

The invention will now be described in further detail with reference to the drawings and preferred embodiments. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

The embodiment of the novel cutting knife testing tool of the utility model shown in fig. 1, fig. 2 and fig. 3 comprises a pressing knife top rod 1 and a base 2 from top to bottom, the pressing knife top rod 1 is provided with a pin shaft hole 3, and is fixedly connected on the upper tensile machine moving plane 4 through a pin shaft, the base 2 is arranged on the lower fixed plane 5 of the lower tensile machine, a cutting knife hole groove 6 is arranged on the base 2, a cutting knife 7 is arranged in the cutting knife hole groove 6, the cutting knife 7 is of an I-shaped structure, the lower end of the pressing knife ejector rod 1 is provided with an ejector head piece 8, the top head piece 8 is provided with a left T-shaped pressing piece and a right T-shaped pressing piece 9 which are symmetrically arranged, the T-shaped pressing pieces 9 are matched with the contact surface of the cutter 7 with the I-shaped structure, and the cutter hole groove 6 is of a cross structure; a tension pressure sensor 10 is also arranged between the tensile machine moving plane 4 and the pressing cutter ejector rod 1; the base 2 comprises a flat plate substrate 11 and a hole groove table 12 arranged on the flat plate substrate 11, wherein an upper vertical part 13, an inclined part 14 and a lower vertical part 15 which simulate the action path of the cutting knife 7 when the cutting knife is triggered are arranged on the hole groove table 12; the groove depth of the cutting knife hole groove 6 sequentially penetrates through the upper vertical part 13, the inclined part 14 and the lower vertical part 15, and the angle of the inclined part 14 relative to the vertical direction is 45 degrees.

The working principle is as follows: the cutting knife 7 to be tested is placed into the cutting knife hole groove 6, the pressing knife ejector rod 1 applies force downwards, the cutting knife 7 moves downwards under the action of force and the limiting path of the cutting knife hole groove 6, then one side of the knife face touches the inclined portion 14 at a 45-degree angle, under set pressure, the cutting knife is completely damaged and is closed, and deformation or cracking occurs and is an inferior product.

While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims

1. The utility model provides a novel cutting knife test fixture which characterized in that: comprises a pressing knife mandril (1) and a base (2) from top to bottom, a pin shaft hole (3) is arranged on the pressing knife mandril (1), and is fixedly connected with the upper tensile machine moving plane (4) through a pin shaft, the base (2) is arranged on the lower fixed plane (5) of the lower tensile machine, a cutting knife hole groove (6) is arranged on the base (2), a cutting knife (7) is arranged in the cutting knife hole groove (6), the cutting knife (7) is of an I-shaped structure, the lower end of the pressing knife ejector rod (1) is provided with an ejector head piece (8), the top head piece (8) is provided with a left T-shaped pressing piece and a right T-shaped pressing piece (9) which are symmetrically arranged, the T-shaped pressing piece (9) is matched with the contact surface of the cutting knife (7) of the I-shaped structure, and the cutting knife hole groove (6) is of a cross structure.

2. The novel cutting knife testing tool of claim 1, characterized in that: and a tension pressure sensor (10) is also arranged between the tensile machine moving plane (4) and the pressing cutter ejector rod (1).

3. The novel cutting knife testing tool of claim 1, characterized in that: the base (2) comprises a flat plate substrate (11) and a hole groove table (12) arranged on the flat plate substrate (11), wherein an upper vertical part (13), an inclined part (14) and a lower vertical part (15) which simulate a motion path when the cutting knife (7) is fired are arranged on the hole groove table (12).

4. The novel cutting knife testing tool of claim 3, characterized in that: the depth of the cutting knife hole groove (6) sequentially penetrates through the upper vertical part (13), the inclined part (14) and the lower vertical part (15) downwards.

5. The novel cutting knife testing tool of claim 3, characterized in that: the angle of the inclined part (14) relative to the vertical direction is 45 degrees.