Universal testing machine free of clamp replacement

Abstract

The utility model relates to the technical field of universal testing machines, and discloses a universal testing machine without replacing a clamp, which comprises a base, a vertical shaft is arranged at the top end of the base, a driving component for driving the vertical shaft is arranged in the base, a shaft sleeve is arranged on the surface of the vertical shaft in a sliding manner, and first angle iron is arranged at the bottom of the vertical shaft. A second angle iron is arranged on the surface of the shaft sleeve, and tension clamps are arranged on one side of the first angle iron and one side of the second angle iron; the first angle iron and the second angle iron can be supported through the vertical shaft and the shaft sleeve respectively, the first angle iron and the second angle iron can support the tension clamp and the limiting assembly, the vertical shaft can be driven to rotate through the driving assembly, the positions of the tension clamp and the limiting assembly can be adjusted, tension testing and pressure testing of materials can be carried out respectively, operation is simple, and practicability is high. And clamp replacement is not needed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of universal testing machine, concretely to a universal testing machine of exempt from replacing anchor clamps. BACKGROUND

[0002] The universal testing machine is a material testing machine integrating tensile, bending, compression, shearing and ring stiffness functions, and is mainly used for testing the mechanical properties of metal and nonmetal materials, and is an ideal testing equipment for industrial and mining enterprises, scientific research units, colleges and universities, engineering quality supervision stations and other departments.

[0003] The application number thereof is "201820996900.X", and the "universal testing machine" disclosed in the application comprises a base, an upper cross beam, a lower cross beam, at least two supporting columns, two lead screws and a driving system, the top of the base is provided with a workbench, the driving system is installed in the base, the supporting columns are vertically installed on the workbench and fixed with the workbench, the upper cross beam is fixed at the top of the supporting columns, the two lead screws are vertically arranged, one end of each lead screw is rotatably installed on the upper cross beam, the other end of each lead screw penetrates through the workbench and is connected with the driving system, and the two lead screws are synchronously rotated under the driving of the driving system, the lower cross beam is sleeved with the two lead screws and is threadedly connected with the two lead screws, and the lower cross beam is slidably sleeved on the at least two supporting columns. The universal testing machine can avoid the round jump of the lead screw, and the test result of the universal testing machine is accurate.

[0004] However, the above-mentioned mode still has the following defects: the clamps installed on the workbench and the lower cross beam can be used to fix the materials to be tested, but it is inconvenient to switch between tensile test and pressure test, and the clamps need to be replaced after the tensile test of the materials by the clamps, so that the pressure test of the materials can be performed, and the operation is inconvenient. Utility model content

[0005] In view of the defects of the prior art, the utility model provides a universal testing machine of exempting from replacing anchor clamps, which has the advantages of convenient switching between tensile test and pressure test and no need to replace the anchor clamps, and solves the problems raised in the above background.

[0006] The utility model provides the following technical scheme: a universal testing machine of exempting from replacing anchor clamps, including base, the top of base is equipped with vertical shaft, the inside of base is equipped with the driving assembly of driving vertical shaft, the surface of vertical shaft is equipped with the shaft sleeve of sliding, the bottom of vertical shaft is equipped with angle iron no.

[0007] As a preferred technical scheme of the utility model, the driving assembly comprises a motor, the output shaft of the motor is connected with a worm, the worm is connected with a worm wheel in a meshing mode, the middle part of the worm wheel is fixedly provided with a rotating shaft, the rotating shaft is rotatably connected with the inside of the base, and the bottom end of the vertical shaft is connected with the top end of the rotating shaft.

[0008] As a preferred technical scheme of the utility model, the two ends of the worm are rotatably connected with supports, and the bottom end of the motor and the bottom end of the support are fixedly connected with the inner wall of the bottom end of the base.

[0009] As a preferred technical scheme of the utility model, the surface of the base is provided with a maintenance opening, one side of the maintenance opening is fixedly connected with a maintenance cover through screws, the two sides of the top end of the base are fixedly provided with curved panels, the top end of the curved panel is fixedly connected with the bottom end of the top plate, one side of the curved panel is fixedly provided with a reinforcing strip, and the bottom of the oil cylinder is fixedly connected with the top end of the top plate.

[0010] As a preferred technical scheme of the utility model, the surface of the disc is fixedly provided with two cross rods, one end of the cross rod is fixedly provided with a guide block, one side of the curved panel is fixedly provided with a guide rail, and the guide block is slidably connected with the guide rail.

[0011] As a preferred technical scheme of the utility model, the limiting assembly comprises a sliding sleeve, the top end of the sliding sleeve is fixedly provided with a support column, the top end of the support column is fixedly provided with a pressure clamp, the other side of the angle iron two is fixedly provided with a pressure head corresponding to the position of the pressure clamp, one side of the pressure clamp is provided with a clamping groove, one side of the sliding sleeve is fixedly provided with a sleeve, one side of the sleeve is threadedly connected with a knob screw, one end of the knob screw is provided with a clamping piece, the clamping piece is located in the inside of the sleeve, and one side of the clamping piece is provided with a rubber pad.

[0012] As a preferred technical scheme of the utility model, the inner walls of the two sides and the bottom of the sliding sleeve are fixedly provided with sliding blocks, and the bottom of the other side of the angle iron one is provided with a sliding groove slidably connected with the sliding blocks.

[0013] As a preferred technical scheme of the utility model, the surface of the vertical shaft is fixedly provided with a convex strip, the inner wall of the shaft sleeve is provided with a groove, and the convex strip is slidably connected with the groove.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The vertical shaft and the shaft sleeve can support the angle iron one and the angle iron two respectively, the angle iron one and the angle iron two can support the tension clamp and the limiting assembly, the driving assembly can drive the vertical shaft to rotate, the position of the tension clamp and the limiting assembly can be adjusted, the material tension test and the pressure test can be carried out respectively, the operation is simple, and the clamp does not need to be replaced.

[0016] 2, by the supporting wheel can support angle iron one, and can deliver load to the base, can prevent angle iron one from deforming, and can ensure that angle iron one rotates with the vertical shaft, since the shaft sleeve is connected with the vertical shaft in sliding mode, the lifting movement of angle iron two is not hindered, and synchronous rotation of angle iron two and angle iron one is ensured, and the tension and pressure suffered by the material can be monitored through the tension and pressure sensor. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is one of the structural schematic views of the utility model;

[0018] Fig. 2 It is the second structural schematic view of the utility model;

[0019] Fig. 3 It is the structural schematic view of the base inside the utility model;

[0020] Fig. 4 It is the structural schematic view of the limiting assembly of the utility model;

[0021] Fig. 5 It is the structural schematic view of the vertical shaft of the utility model.

[0022] In the drawing: 1, base; 2, maintenance cover; 3, vertical shaft; 4, driving assembly; 401, motor; 402, worm; 403, worm gear; 404, rotating shaft; 405, support; 5, shaft sleeve; 6, convex strip; 7, tension clamp; 8, angle iron one; 9, angle iron two; 10, pressure head; 11, sliding groove; 12, supporting wheel; 13, limiting assembly; 1301, sliding sleeve; 1302, support column; 1303, pressure clamp; 1304, clamping groove; 1305, sleeve; 1306, knob screw; 1307, clamping piece; 1308, sliding block; 14, top plate; 15, curved surface plate; 16, reinforcing strip; 17, guide rail; 18, oil cylinder; 19, disc; 20, tension and pressure sensor; 21, cross bar; 22, guide block. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figs. 1-5The utility model provides a replaceable clamp's universal testing machine, including base 1, the top of base 1 is equipped with vertical shaft 3, the bottom of vertical shaft 3 is connected with the middle part of base 1 top rotation, the inside of base 1 is equipped with the drive assembly 4 of driving vertical shaft 3, can drive vertical shaft 3 rotation through drive assembly 4, the surface of vertical shaft 3 is equipped with shaft sleeve 5, and the bottom of vertical shaft 3 is welded with angle iron no. 8, and the surface of shaft sleeve 5 is welded with angle iron no. 9, and one side of angle iron no. 8 and one side of angle iron no. 9 are equipped with tension clamp 7, and angle iron no. 8 and angle iron no. 9 can support tension clamp 7 and limiting component 13 through vertical shaft 3 and shaft sleeve 5, and the position of tension clamp 7 and limiting component 13 is adjusted through rotating vertical shaft 3, and the tension test and pressure test of material can be carried out respectively, simple operation, need not replace clamp, and the other side of angle iron no. 8 is equipped with two limiting components 13, and the bottom of the other side of angle iron no. 8 is equipped with two supporting wheels 12, the top of shaft sleeve 5 is rotatably equipped with disc 19, the top of base 1 is equipped with oil cylinder 18, and the telescopic rod of oil cylinder 18 is connected with the tension and pressure sensor 20 connected with disc 19, and the tension and pressure of material can be monitored through tension and pressure sensor 20,

[0025] In the embodiment, preferably, the drive assembly 4 includes a motor 401, the output shaft of the motor 401 is connected with a worm 402, the worm 402 is engagedly connected with a worm gear 403, the middle part of the worm gear 403 is fixedly provided with a rotating shaft 404, the rotating shaft 404 is rotatably connected with the inside of the base 1, the bottom end of the vertical shaft 3 is connected with the top end of the rotating shaft 404, both ends of the worm 402 are rotatably connected with a support 405, the bottom end of the motor 401 and the bottom end of the support 405 are fixedly connected with the inner wall of the bottom end of the base 1, the worm 402 is driven by the motor 401, the worm 402 drives the rotating shaft 404 to rotate through the worm gear 403, that is, the vertical shaft 3 is driven to rotate, and the worm 402 and the worm gear 403 can realize self-locking of the vertical shaft 3;

[0026] In the embodiment, preferably, the limiting assembly 13 comprises a sliding sleeve 1301, a support 1302 is fixedly arranged at the top end of the sliding sleeve 1301, a pressure clamp 1303 is fixedly arranged at the top end of the support 1302, a pressure head 10 is fixedly arranged at the other side of the angle iron two 9 and corresponds to the position of the pressure clamp 1303, a clamping groove 1304 is arranged at one side of the pressure clamp 1303, a sleeve 1305 is fixedly arranged at one side of the sliding sleeve 1301, a knob screw 1306 is threadedly connected to one side of the sleeve 1305, a clamping piece 1307 is arranged at one end of the knob screw 1306 and located in the sleeve 1305, a rubber pad is arranged at one side of the clamping piece 1307, sliding blocks 1308 are fixedly arranged at the inner walls of the bottom of the sliding sleeve 1301, a sliding groove 11 is arranged at the bottom of the other side of the angle iron one 8 and slidably connected with the sliding blocks 1308, the sliding sleeve 1301 can be prevented from falling off through the sliding groove 11 and the sliding blocks 1308, the distance between the two pressure clamps 1303 can be adjusted by sliding the sliding sleeve 1301, which is suitable for materials of different lengths, the pressure clamp 1303 can limit the material through the clamping groove 1304, the sliding sleeve 1301 can be fixed and prevented from moving by tightening the knob screw 1306 to press the angle iron one 8 with the clamping piece 1307;

[0027] In the embodiment, preferably, the surface of the base 1 is provided with a maintenance opening, a maintenance cover 2 is fixedly connected to one side of the maintenance opening through screws, curved panels 15 are fixedly arranged at the two sides of the top end of the base 1, the top ends of the curved panels 15 are fixedly connected with the bottom end of the top plate 14, reinforcing strips 16 are fixedly arranged at one side of the curved panels 15, the curved panels 15 and the reinforcing strips 16 can support the top plate 14, the bottom of the oil cylinder 18 is fixedly connected with the top end of the top plate 14, two cross rods 21 are fixedly arranged on the surface of the disc 19, guide blocks 22 are fixedly arranged at one end of the cross rods 21, guide rails 17 are fixedly arranged at one side of the curved panels 15, the guide blocks 22 are slidably connected with the guide rails 17, the guide blocks 22 and the guide rails 17 can guide the disc 19 and prevent the oil cylinder 18 from bearing radial force;

[0028] In the embodiment, preferably, convex strips 6 are fixedly arranged on the surface of the vertical shaft 3, grooves are arranged on the inner wall of the shaft sleeve 5, the convex strips 6 are slidably connected with the grooves, and the shaft sleeve 5 can rotate synchronously with the vertical shaft 3 through the convex strips 6 and the grooves.

[0029] In use, first drive the worm 402 through the motor 401 of the drive assembly 4, the worm 402 can drive the rotating shaft 404 through the worm gear 403, the rotating shaft 404 can drive the vertical shaft 3 to rotate, the vertical shaft 3 can drive the sleeve 5 to rotate synchronously through the convex strip 6, after the tension clamp 7 is rotated to the middle of the top of the base 1, stop the work of the motor 401, the worm 402 and the worm gear 403 can realize the self-locking of the vertical shaft 3, then fix the two ends of the material through the tension clamp 7 respectively, and then control the contraction of the telescopic rod of the oil cylinder 18, so that the material can be pulled and tension test is carried out on the material until the material is broken;

[0030] When the pressure test of the material needs to be carried out, the staff drives the worm 402 in reverse through the motor 401, rotates the limiting assembly 13 and the pressure head 10 to the middle of the top of the base 1, and then places the material between the two end pressure clamps 1303 of the limiting assembly 13, the pressure clamps 1303 can limit the material through the clamping groove 1304, then controls the telescopic rod of the oil cylinder 18 to contract, and the pressure head 10 is used to press the material, so that the pressure test of the material can be carried out, the supporting wheel 12 can support the angle iron 8 and can transmit the load to the base 1, so that the deformation of the angle iron 8 under pressure can be prevented, when the materials of different lengths need to be fixed, the staff slides the sleeve 1301 to adjust the distance between the two pressure clamps 1303, after the adjustment is completed, the knob screw 1306 is tightened, the clamping piece 1307 is used to press the angle iron 8 to fix the sleeve 1301, so that the displacement of the sleeve 1301 can be prevented, and in the process of pressure and tension test, the tension and pressure sensor 20 can monitor the tension and pressure of the material.

[0031] 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 these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A changeless clamp universal testing machine comprising a base (1), characterized in that: The top end of the base (1) is provided with a vertical shaft (3), the inside of the base (1) is provided with a driving assembly (4) for driving the vertical shaft (3), the surface of the vertical shaft (3) is slidably provided with a shaft sleeve (5), the bottom of the vertical shaft (3) is provided with an angle iron (8), the surface of the shaft sleeve (5) is provided with an angle iron (9), one side of the angle iron (8) and one side of the angle iron (9) are provided with a tension clamp (7), the other side of the angle iron (8) is provided with two limiting assemblies (13), the bottom of the other side of the angle iron (8) is provided with two supporting wheels (12), the top end of the shaft sleeve (5) is rotatably provided with a disc (19), the top end of the base (1) is provided with an oil cylinder (18), the telescopic rod of the oil cylinder (18) is connected with a tension and pressure sensor (20) connected with the disc (19).

2. The universal testing machine with no replacement grips according to claim 1, characterized in that: The driving assembly (4) comprises a motor (401), the output shaft of the motor (401) is connected with a worm (402), the worm (402) is connected with a worm gear (403) in meshing mode, the middle part of the worm gear (403) is fixedly provided with a rotating shaft (404), the rotating shaft (404) is rotatably connected with the inside of the base (1), and the bottom end of the vertical shaft (3) is connected with the top end of the rotating shaft (404).

3. A changeless clamp universal testing machine according to claim 2, characterized in that: Both ends of the worm (402) are rotatably connected with a support (405), and the bottom end of the motor (401) and the bottom end of the support (405) are fixedly connected with the inner wall of the bottom end of the base (1).

4. The changeless clamp universal testing machine according to claim 1, characterized in that: The surface of the base (1) is provided with a maintenance opening, one side of the maintenance opening is fixedly connected with a maintenance cover (2) through screws, both sides of the top end of the base (1) are fixedly provided with curved panels (15), the top end of the curved panel (15) is fixedly connected with the bottom end of a top plate (14), one side of the curved panel (15) is fixedly provided with a reinforcing strip (16), and the bottom of the oil cylinder (18) is fixedly connected with the top end of the top plate (14).

5. A changeless clamp universal testing machine according to claim 4, characterized in that: The surface of the disc (19) is fixedly provided with two cross rods (21), one end of the cross rod (21) is fixedly provided with a guide block (22), one side of the curved panel (15) is fixedly provided with a guide rail (17), and the guide block (22) is slidably connected with the guide rail (17).

6. The changeless clamp universal testing machine according to claim 1, characterized in that: The limiting assembly (13) comprises a sliding sleeve (1301), the top end of the sliding sleeve (1301) is fixedly provided with a support column (1302), the top end of the support column (1302) is fixedly provided with a pressure clamp (1303), the other side of the angle iron (9) is fixedly provided with a pressure head (10) corresponding to the position of the pressure clamp (1303), one side of the pressure clamp (1303) is provided with a clamping groove (1304), one side of the sliding sleeve (1301) is fixedly provided with a sleeve (1305), one side of the sleeve (1305) is threadedly connected with a knob screw (1306), one end of the knob screw (1306) is provided with a clamping piece (1307), the clamping piece (1307) is located in the inside of the sleeve (1305), and one side of the clamping piece (1307) is provided with a rubber pad.

7. A changeless clamp universal testing machine according to claim 6, characterized in that: The inner wall of the bottom of the both sides of the sliding sleeve (1301) is fixedly provided with a sliding block (1308), and the bottom of the other side of the angle iron (8) is provided with a sliding groove (11) in sliding connection with the sliding block (1308).

8. The changeless clamp universal testing machine according to claim 1, characterized in that: The surface of the vertical shaft (3) is fixedly provided with a convex strip (6), the inner wall of the shaft sleeve (5) is provided with a groove, and the convex strip (6) is in sliding connection with the groove.

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