CN215812194U

CN215812194U - Rockwell hardness tester convenient for adjusting test platform

Info

Publication number: CN215812194U
Application number: CN202121345638.0U
Authority: CN
Inventors: 曹景胤; 历刚; 郭习文
Original assignee: Guoren Robot Tianjin Co ltd
Current assignee: Guoren Robot Tianjin Co ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2022-02-11
Anticipated expiration: 2031-06-17

Abstract

The utility model relates to a Rockwell hardness tester convenient for adjusting a test platform, which comprises a base, wherein a top plate is arranged at the top end of the base, an installation seat is connected to the lower surface of the top plate, a pressure head is arranged at the bottom of the installation seat, a U-shaped frame is connected to the base in a lifting manner, the test platform is arranged in the U-shaped frame, cylinders are arranged at two ends of the test platform, a rotating shaft is coaxially connected to the cylinders, the outer end of the rotating shaft is rotatably connected to the side wall of the U-shaped frame, an angle adjusting assembly is connected to one cylinder, and an auxiliary adjusting assembly is connected to the other cylinder. According to the utility model, the pair of cylinders, the angle adjusting assembly and the auxiliary adjusting assembly are arranged at the outer end of the test platform, so that the angle of the test platform can be conveniently adjusted, the angle between the workpiece and the pressure head can be conveniently adjusted, the accuracy of the test result of the workpiece to be tested with irregular surface shape is ensured, and the working requirement is met.

Description

Rockwell hardness tester convenient for adjusting test platform

Technical Field

The utility model relates to the technical field of hardness detection devices, in particular to a Rockwell hardness tester convenient for adjusting a test platform.

Background

The Rockwell hardness tester is widely applied to industrial production and becomes a main means for inspecting the quality of products and determining a reasonable processing technology. Various ferrous and non-ferrous metals can be tested, and the hardness of quenched steel, tempered steel, annealed steel, case hardened steel, sheet materials of various thicknesses, cemented carbide materials, powder metallurgy materials, thermal spray coatings can be tested. However, in the detection process of the existing rockwell hardness tester, the test platform cannot be adjusted at multiple angles, and can only detect workpieces with smooth surfaces, and for workpieces to be detected with irregular surface shapes, the accuracy of test results is difficult to guarantee, and the working requirements cannot be met.

Disclosure of Invention

The utility model aims to solve the defects of the prior art and provides the Rockwell hardness tester which is convenient for adjusting the test platform.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a Rockwell hardness tester convenient for adjusting a test platform comprises a machine base, wherein a top plate is arranged at the top end of the machine base, a mounting base is connected to the lower surface of the top plate, a pressure head is arranged at the bottom of the mounting base, a U-shaped frame is connected to the machine base in a lifting mode, the test platform is arranged in the U-shaped frame, cylinders are arranged at two ends of the test platform and are coaxially arranged, a rotating shaft is coaxially connected to the cylinders, the outer end of the rotating shaft is rotatably connected to the side wall of the U-shaped frame, one of the cylinders is connected with an angle adjusting assembly which is arranged in the U-shaped frame, the other cylinder is connected with an auxiliary adjusting assembly which is arranged in the U-shaped frame, grooves symmetrical to the pressure head are formed in the test platform, a plurality of limiting holes are formed in the bottom surface of the test platform between the two grooves, an electric telescopic rod is arranged on the bottom surface in the U-shaped frame, and a bolt is connected to the electric telescopic rod, the bolt can be inserted in the limiting hole, a moving plate slides in each groove, the top end of the moving plate is located above the test platform and is correspondingly provided with clamping plates, and the two clamping plates are symmetrically arranged relative to the pressure head.

The bottom of the base is provided with a plurality of supporting legs, and the supporting legs are connected with the base through threads.

A lifting electric cylinder is connected between the U-shaped frame and the base and vertically mounted on the base, and a plurality of telescopic rods which are symmetrical about the lifting electric cylinder are connected between the U-shaped frame and the base.

The angle adjusting assembly comprises an annular rack which is coaxially sleeved on the cylinder, a gear is meshed below the annular rack, a rotating motor is coaxially connected to the gear, and the rotating motor is installed on the inner side wall of the U-shaped frame.

The annular rack is fixedly connected with the cylinder in a welding mode.

The auxiliary adjusting assembly comprises an annular groove formed in the outer wall of the cylinder, a connecting frame is arranged on the side wall, far away from the angle adjusting assembly, of the U-shaped frame, a roller wheel is arranged on the connecting frame in a rotating mode, and the roller wheel rolls in the annular groove.

Two be equipped with isometric lead screw one and lead screw two in the recess respectively, the one end of lead screw one is rotated and is connected on the inner wall of corresponding recess, and the other end of lead screw one is coaxial to be linked there is the connecting axle, and the connecting axle passes and is located two test platform between the recess and two coaxial coupling of lead screw, the other end of lead screw two is coaxial to be linked there is positive reverse motor, and positive reverse motor is installed in test platform, and the equal thread bush has the screw on lead screw one and the lead screw two, and the top of screw is connected with the bottom of corresponding movable plate, all has the guide bar in the recess, and the guide bar runs through corresponding movable plate, and the screw trend on lead screw one and the lead screw two is opposite and adjacent pitch equals.

The utility model has the beneficial effects that: according to the utility model, the pair of cylinders, the angle adjusting assembly and the auxiliary adjusting assembly are arranged at the outer end of the test platform, so that the angle of the test platform can be conveniently adjusted, the angle between the workpiece and the pressure head can be conveniently adjusted, the accuracy of the test result of the workpiece to be tested with irregular surface shape is ensured, and the working requirement is met.

Drawings

FIG. 1 is a schematic structural view of the present invention;

in the figure: 1-supporting legs; 2-a machine base; 3, a telescopic rod; 4-lifting electric cylinder; 5-a U-shaped frame; 6-rotating the motor; 7-a rotating shaft; 8-a ring-shaped rack; 9-a test platform; 10-a top plate; 11-a groove; 12-moving the plate; 13-a mounting seat; 14-pressure head; 15-a guide bar; 16-a first lead screw; 17-a limiting hole; 18-an electric telescopic rod; 19-a clamping plate; 20-a nut; 21-a second lead screw; 22-an annular groove; 23-a roller; 24-a connecting frame; 25-a bolt; 26-a gear; 27-cylinder;

the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.

Detailed Description

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

as shown in the figure, the Rockwell hardness tester convenient for adjusting the test platform comprises a machine base 2, a top plate 10 is arranged at the top end of the machine base 2, a mounting seat 13 is connected to the lower surface of the top plate 10, a pressure head 14 is arranged at the bottom of the mounting seat 13, a U-shaped frame 5 is connected to the machine base 2 in a lifting mode, a test platform 9 is arranged in the U-shaped frame 5, cylinders 27 are arranged at two ends of the test platform 9, the two cylinders 27 are coaxially arranged, a rotating shaft 7 is coaxially connected to the cylinders 27, the outer end of the rotating shaft 7 is rotatably connected to the side wall of the U-shaped frame 5, an angle adjusting assembly is connected to one cylinder 27 and is arranged in the U-shaped frame 5, an auxiliary adjusting assembly is connected to the other cylinder 27 and is arranged in the U-shaped frame 5, grooves 11 symmetrical to the pressure head 14 are formed in the test platform 9, a plurality of limiting holes 17 are formed in the bottom surface of the test platform 9 between the two grooves 11, an electric telescopic rod 18 is arranged on the bottom surface in the U-shaped frame 5, a plug 25 is connected onto the electric telescopic rod 18, the plug 25 can be inserted into the limiting hole 17, a moving plate 12 slides in each groove 11, the top end of the moving plate 12 is located above the test platform 9 and is correspondingly provided with clamping plates 19, and the two clamping plates 19 are symmetrically arranged relative to the pressure head 14.

The bottom of the base 2 is provided with a plurality of supporting legs 1, and the supporting legs 1 are connected with the base 2 through threads.

A lifting electric cylinder 4 is connected between the U-shaped frame 5 and the base 2, the lifting electric cylinder 4 is vertically installed on the base 2, and a plurality of telescopic rods 3 which are symmetrical about the lifting electric cylinder 4 are connected between the U-shaped frame 5 and the base 2.

The angle adjusting assembly comprises an annular rack 8 which is coaxially sleeved on a cylinder 27, a gear 26 is meshed below the annular rack 8, a rotating motor 6 is coaxially connected to the gear 26, and the rotating motor 6 is installed on the inner side wall of the U-shaped frame 5.

The annular rack 8 is fixedly connected with the cylinder 27 through welding.

The auxiliary adjusting assembly comprises an annular groove 22 formed in the outer wall of the cylinder 27, a connecting frame 24 is arranged on the side wall, far away from the angle adjusting assembly, in the U-shaped frame 5, a roller 23 is arranged on the connecting frame 24 in a rotating mode, and the roller 23 rolls in the annular groove 22.

Two be equipped with isometric lead screw 16 and lead screw two 21 in the recess 11 respectively, the one end of lead screw 16 rotates and connects on the inner wall of corresponding recess 11, and the coaxial connecting axle that has of the other end of lead screw 16, the connecting axle pass and are located two test platform 9 between the recess 11 and the coaxial connection of lead screw two 21, and the coaxial connection of the other end of lead screw two 21 has the motor that just reverses, and the motor that reverses is installed in test platform 9, and equal thread bush has screw 20 on lead screw 16 and the lead screw two 21, and the top of screw 20 is connected with the bottom of corresponding movable plate 12, all has guide bar 15 in recess 11, and guide bar 15 runs through corresponding movable plate 12, and the screw trend on lead screw 16 and the lead screw two 21 is opposite and adjacent pitch equals.

When the device is used, a workpiece to be tested is placed on the testing platform 9, the workpiece to be tested is fixed on the testing platform 9 through the clamping plate 19, the testing platform 9 is subjected to angle adjustment through the angle adjusting assembly and the auxiliary adjusting assembly according to the shape of a detection surface on the workpiece to be tested, the pressure head 14 is perpendicular to the detection surface on the workpiece, then the lifting electric cylinder 4 is driven to match with the telescopic rod 3 to move the U-shaped frame 5 upwards, the pressure head 14 is abutted to the detection surface on the workpiece, the workpiece is detected, the angle of the testing platform 9 is convenient to adjust, the angle between the workpiece and the pressure head 14 is convenient to adjust, the accuracy of a test result of the workpiece to be tested with an irregular surface shape is guaranteed, and the working requirement is met.

The utility model has been described in connection with the accompanying drawings, it is to be understood that the utility model is not limited to the specific embodiments disclosed, but is intended to cover various modifications, adaptations or uses of the utility model, and all such modifications and variations are within the scope of the utility model.

Claims

1. The Rockwell hardness tester convenient for adjusting the test platform comprises a machine base (2) and is characterized in that a top plate (10) is arranged at the top end of the machine base (2), a mounting seat (13) is connected to the lower surface of the top plate (10), a pressure head (14) is arranged at the bottom of the mounting seat (13), a U-shaped frame (5) is connected to the machine base (2) in a lifting mode, a test platform (9) is arranged in the U-shaped frame (5), cylinders (27) are arranged at two ends of the test platform (9) and are coaxially arranged, a rotating shaft (7) is coaxially connected to the cylinders (27), the outer end of the rotating shaft (7) is rotatably connected to the side wall of the U-shaped frame (5), one cylinder (27) is connected with an angle adjusting assembly which is installed in the U-shaped frame (5), the other cylinder (27) is connected with an auxiliary adjusting assembly which is installed in the U-shaped frame (5), be equipped with recess (11) about pressure head (14) symmetry on test platform (9), the bottom surface that is located test platform (9) between two recess (11) is equipped with a plurality of spacing holes (17), ann has electric telescopic handle (18) on the bottom surface in U-shaped frame (5), even there is bolt (25) on electric telescopic handle (18), bolt (25) can insert in spacing hole (17), all slide in every recess (11) and have movable plate (12), the top of movable plate (12) is located the top of test platform (9) and corresponds and ann has clamp plate (19), two clamp plate (19) set up about pressure head (14) symmetry.

2. The Rockwell hardness tester facilitating the adjustment of the test platform according to claim 1, wherein the base (2) is provided with a plurality of support legs (1) at the bottom, and the support legs (1) are connected with the base (2) through threads.

3. The Rockwell hardness tester facilitating the adjustment of the test platform according to claim 1, wherein a lifting electric cylinder (4) is connected between the U-shaped frame (5) and the base (2), the lifting electric cylinder (4) is vertically installed on the base (2), and a plurality of telescopic rods (3) symmetrical with respect to the lifting electric cylinder (4) are connected between the U-shaped frame (5) and the base (2).

4. The Rockwell hardness tester facilitating adjustment of the test platform according to claim 1, wherein the angle adjustment assembly comprises an annular rack (8) coaxially sleeved on a cylinder (27), a gear (26) is engaged below the annular rack (8), a rotating motor (6) is coaxially connected to the gear (26), and the rotating motor (6) is installed on the inner side wall of the U-shaped frame (5).

5. The Rockwell hardness tester for facilitating the adjustment of the test platform according to claim 4, wherein the annular rack (8) is fixedly connected to the cylinder (27) by welding.

6. The Rockwell hardness tester facilitating adjustment of the test platform according to claim 1, wherein the auxiliary adjustment assembly comprises an annular groove (22) provided on the outer wall of the cylinder (27), a connecting frame (24) is mounted on the side wall of the U-shaped frame (5) away from the angle adjustment assembly, a roller (23) is rotatably mounted on the connecting frame (24), and the roller (23) rolls in the annular groove (22).

7. The Rockwell hardness tester convenient for adjusting the test platform is characterized in that a first lead screw (16) and a second lead screw (21) which are equal in length are respectively arranged in the two grooves (11), one end of the first lead screw (16) is rotatably connected to the inner wall of the corresponding groove (11), the other end of the first lead screw (16) is coaxially connected with a connecting shaft, the connecting shaft passes through the test platform (9) between the two grooves (11) and is coaxially connected with the second lead screw (21), the other end of the second lead screw (21) is coaxially connected with a forward and reverse motor, the forward and reverse motor is arranged in the test platform (9), the first lead screw (16) and the second lead screw (21) are respectively and threadedly sleeved with a nut (20), the top end of the nut (20) is connected with the bottom of the corresponding movable plate (12), a guide rod (15) is arranged in each groove (11), and the guide rod (15) passes through the corresponding movable plate (12), the screw threads on the first screw rod (16) and the second screw rod (21) are opposite in trend and equal in adjacent screw pitch.