Torsion chuck suitable for tension-shear screw joint test piece

Abstract

The utility model relates to the technical field of torsion clamps for tension-shear test pieces, in particular to a torsion chuck suitable for tension-shear screw joint test pieces, which comprises two groups of chuck main bodies which are symmetrically distributed front and back, each chuck main body comprises a lower fixed plate and an upper movable plate, rod chucks are fixed in the middle of the same sides of the lower fixed plates and the upper movable plates, and the lower fixed plates and the upper movable plates are fixed on the same sides of the rod chucks. The lower fixed plate and the upper movable plate face the same side and are located at the left end and the right end of the rod chuck, and a sliding rod is connected between the two sets of side blocks on the same upper side and the lower side. Torque operation of all angles can be carried out on the two ends of the detection screw rod, so that experiment operation is enhanced, the result precision is improved, and the working efficiency is improved. And operation is convenient, the structure is simple, and maintenance and use are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to tension -shear test piece torsion clamp technical field, concretely is a kind of torsion chuck suitable for tension -shear screw joint test piece. BACKGROUND

[0002] Tension-shear test piece refers to the sample or component for carrying out tensile shear strength test, in material mechanics and engineering applications, in order to evaluate the tensile shear performance of screw joint structure, specific test piece is usually made to carry out test, so as to obtain the tensile and shear mechanical properties of mechanical joint.

[0003] However, the existing screw joint test piece can test two simple force systems of tension and shear, but cannot apply torque in each direction, reducing detection and result accuracy.

[0004] Therefore, it is particularly important to design a torsion chuck suitable for tension-shear screw joint test piece to change the above technical defects and improve overall practicability. INVENTION CONTENTS

[0005] The utility model is provided with a torsion chuck suitable for tension-shear screw joint test piece to solve the problems in the above background art.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A torsion chuck suitable for tension-shear screw joint test piece, comprising two groups of front and back symmetrical distribution chuck main bodies, the chuck main body includes lower fixed plate and upper movable plate, the lower fixed plate and the upper movable plate are fixed with rod chuck at the middle of the same side, the lower fixed plate and the upper movable plate are provided with side block on the same side and at the left and right ends of rod chuck, and the two groups of side blocks on the same side are connected with slide rod, the right side of lower fixed plate is provided with fixed vertical rod, the top of fixed vertical rod is installed with positive and negative motor, the output end of positive and negative motor penetrates the inside of fixed vertical rod and is connected with lead screw, the outside of lead screw is threaded with lead screw sleeve, the outside of lower fixed plate is provided with fixed back plate, the lower side of fixed back plate is provided with concave bracket, the inside of concave bracket is rotatably connected with driving shaft, the left side of concave bracket is installed with rotary motor, the driving shaft penetrates one end of concave bracket and the output end of rotary motor and is connected with gear that meshes with each other, the bottom of concave bracket is installed with fixed support, and the inner recess of fixed support is installed with torsion motor.

[0008] As a preferred scheme of the utility model, the connection mode of the bottom end of the slide rod and the side block at the bottom is fixed connection, and the connection mode of the top end of the slide rod and the side block at the top and the upper movable plate is sliding connection.

[0009] As the preferred scheme of the utility model, the right side of the fixed back plate is provided with a controller, wherein the controller is connected with the forward-reverse motor, the rotary motor and the torsion motor through wires, and the connection mode is electrical connection.

[0010] As the preferred scheme of the utility model, the two ends of the lead screw are rotatably connected in the interior of the fixed vertical rod through bearing blocks, and the left end of the lead screw sleeve is fixedly connected with the upper moving plate.

[0011] As the preferred scheme of the utility model, the rotary motor is fixedly installed on the side surface of the concave support through bolts.

[0012] As the preferred scheme of the utility model, the bottom of the fixed back plate is installed on the outer side of the driving shaft rod and at the position facing upwards.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] In the utility model, the torsion chuck suitable for the tension-shear screw joint test piece is arranged, the torque operation of each angle can be carried out on the two ends of the detection screw rod, the experiment operation is enhanced, the result precision is ensured to be improved, the operation is convenient, the structure is simple, and the maintenance and use are convenient. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the overall structure perspective view of the utility model;

[0016] Fig. 2 It is the partial structure schematic view of the utility model;

[0017] Fig. 3 It is the local structure schematic view of the utility model.

[0018] In the drawing: 1, chuck main body; 2, lower fixed plate; 201, upper moving plate; 202, rod chuck; 203, side block; 204, sliding rod; 205, fixed vertical rod; 206, forward-reverse motor; 207, lead screw; 208, lead screw sleeve; 3, fixed back plate; 4, concave support; 401, driving shaft rod; 402, rotary motor; 403, gear; 404, fixed support; 405, torsion motor. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model, obviously, the described embodiments only are a part of the embodiments of the utility model, not all the embodiments, based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the scope of protection of the utility model.

[0020] For the convenience of understanding the utility model, the utility model will be described more fully below with reference to the relevant drawings, several embodiments of the utility model are given, however, the utility model can be realized in many different forms, and is not limited to the embodiments described herein, on the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be intervening elements, and when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be intervening elements, the terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs, the terminology used in the specification of the utility model herein is only for the purpose of describing specific embodiments and is not intended to limit the utility model, the term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0023] Embodiments, please refer to Figs. 1-3 The utility model provides a technical scheme:

[0024] A kind of suitable for tension-shear screw joint test piece's chuck, including two groups of front and back symmetry distribution chuck main body 1, chuck main body 1 includes lower fixed plate 2 and upper moving plate 201, lower fixed plate 2 and upper moving plate 201 same side towards the middle part are fixed with rod chuck 202, lower fixed plate 2 and upper moving plate 201 same side towards and located the left and right ends of rod chuck 202 are provided with side block 203, two groups of side block 203 between upper and lower same side are connected with slide bar 204, the right side of lower fixed plate 2 is provided with fixed vertical rod 205, the top of fixed vertical rod 205 is installed with positive and negative motor 206, the output end of positive and negative motor 206 is connected with screw rod 207, which is threaded through the inside of fixed vertical rod 205, and the outside of screw rod 207 is threaded with screw rod sliding sleeve 208, the outside of lower fixed plate 2 is provided with fixed back plate 3, the lower of fixed back plate 3 is provided with recessed bracket 4;

[0025] Wherein the connection mode of the bottom end of slide bar 204 and the side block 203 located at the bottom is fixed connection, the connection mode of the top end of slide bar 204 and the side block 203 located at the top and upper moving plate 201 is sliding connection, so that upper moving plate 201 moves more stably, both ends of screw rod 207 are rotatably connected in the inside of fixed vertical rod 205 by bearing seat, the left end of screw rod sliding sleeve 208 is fixedly connected with upper moving plate 201.

[0026] In this embodiment, please refer to Fig. 3 , the inside rotation connection of the concave bracket 4 has a drive shaft 401, the left side of the concave bracket 4 is provided with a rotating motor 402, the drive shaft 401 penetrates one end of the concave bracket 4 and the output end of the rotating motor 402, and the gear 403 is connected with each other, the bottom of the concave bracket 4 is provided with a fixed support 404, and the inner recess of the fixed support 404 is provided with a torsion motor 405;

[0027] The right side of the fixed back plate 3 is provided with a controller, wherein the controller is connected with the positive and negative motor 206, the rotating motor 402 and the torsion motor 405 through wires, and the connection mode is electrical connection, the rotating motor 402 is fixedly installed on the side surface of the concave bracket 4 through bolts, and the bottom of the fixed back plate 3 is installed on the outer side of the drive shaft 401 and is located at the position upward.

[0028] The working process of the utility model: in use, two groups of torsion clamps are fixed on the detection equipment through the fixed support 404 (two groups of clamps on the detection equipment can also be replaced), then the two ends of the screw rod are respectively placed at the rod clamp 202 on the lower fixed plate 2, then the positive and negative motor 206 is started to drive the screw rod 207 to rotate, the screw rod 207 is driven by the screw rod 207 to drive the screw rod sleeve 208 downward, and the upper moving plate 201 is driven downward under the cooperation of the slide rod 204 and the side block 203, finally the rod clamp 202 on the upper side is moved downward to clamp and fix the screw rod, after fixing, the rotating motor 402 drives the two gears 403 to mesh to make the drive shaft 401 rotate forward and backward to make the screw rod be twisted, and the torsion motor 405 drives the concave bracket to rotate forward and backward, so that the screw rod is twisted, the torque operation of the two ends of the detection screw rod can be carried out at various angles, so that the experimental operation is enhanced, the result accuracy is improved, and the operation is convenient and simple in structure, convenient to maintain and use.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A torsion chuck suitable for tension-shear bolted specimens, comprising two sets of chuck bodies (1) symmetrically distributed front and rear, characterized in that: The clamp body (1) includes a lower fixed plate (2) and an upper movable plate (201). A rod clamp (202) is fixed at the middle of both the lower fixed plate (2) and the upper movable plate (201) facing the same side. Side blocks (203) are provided at both ends of the rod clamp (202) facing the same side. A sliding rod (204) is connected between the two sets of side blocks (203) on the same side. A fixed upright (205) is provided on the right side of the lower fixed plate (2). A forward and reverse motor (206) is installed on the top of the fixed upright (205). The output end of the forward and reverse motor (206) passes through the interior of the fixed upright (205) and is connected to... There is a lead screw (207), and a lead screw sleeve (208) is threaded on the outer side of the lead screw (207). A fixed back plate (3) is provided on the outer side of the lower fixed plate (2). A concave bracket (4) is provided below the fixed back plate (3). A drive shaft (401) is rotatably connected inside the concave bracket (4). A rotary motor (402) is installed on the left side of the concave bracket (4). The drive shaft (401) passes through one end of the concave bracket (4) and the output end of the rotary motor (402) are connected to meshing gears (403). A fixed support (404) is installed at the bottom of the concave bracket (4). A torsion motor (405) is installed in the concave part of the fixed support (404).

2. The torsion clamp for tension-shear bolted specimens according to claim 1, characterized in that: The bottom end of the slide rod (204) is fixedly connected to the side block (203) located at the bottom, and the top end of the slide rod (204) is slidably connected to the side block (203) located at the top and the upper moving plate (201).

3. A torsion clamp for tension-shear bolted specimens according to claim 1, characterized in that: A controller is provided on the right side of the fixed back plate (3), wherein the controller is connected to the forward and reverse motor (206), the rotary motor (402), and the torsional motor (405) by wires, and the connection is an electrical connection.

4. A torsion clamp for tension-shear bolted specimens according to claim 1, characterized in that: Both ends of the lead screw (207) are rotatably connected to the inside of the fixed upright (205) through bearing seats, and the left end of the lead screw sleeve (208) is fixedly connected to the upper moving plate (201).

5. A torsion clamp for tension-shear bolted specimens according to claim 1, characterized in that: The rotary motor (402) is fixedly mounted on the side of the concave bracket (4) by bolts.

6. A torsion clamp for tension-shear bolted specimens according to claim 1, characterized in that: The bottom of the fixed back plate (3) is mounted on the outside of the drive shaft (401) and facing upward.

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