CN212180433U

CN212180433U - Test piece lifting device of electro-hydraulic servo steel strand testing machine

Info

Publication number: CN212180433U
Application number: CN202020888258.0U
Authority: CN
Inventors: 黄秀梅; 杨家伟; 赵超; 其他发明人请求不公开姓名
Original assignee: Sichuan Jingda Engineering Testing Co ltd
Current assignee: Sichuan Jingda Engineering Testing Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2020-12-18
Anticipated expiration: 2030-05-25

Abstract

The utility model relates to a servo steel strand wires testing machine test piece of electricity liquid lifts device relates to testing machine technical field, including the frame with set up organism on the frame, go up to keep silent, keep silent down and lift the car, it sets up in the top of organism to go up to keep silent, keep silent the activity down and set up in the bottom of organism, be provided with the elevating gear who is used for ordering about down the lift of keeping silent in the organism, be provided with the clamping part that is used for centre gripping test piece on the lift car, be provided with the driving piece that is used for ordering about clamping part horizontal motion on the lift car, be provided with the drive assembly who is used for ordering about the clamping part lift on the lift car. The utility model discloses have the effect of being convenient for lift the test piece.

Description

Test piece lifting device of electro-hydraulic servo steel strand testing machine

Technical Field

The utility model belongs to the technical field of the testing machine technique and specifically relates to a servo steel strand wires testing machine test piece of electricity liquid lifts device.

Background

A universal testing machine is a material testing machine integrating the functions of stretching, bending, compressing, shearing, ring stiffness and the like, is mainly used for mechanical property tests of metal and nonmetal materials, and is ideal detection equipment for departments such as industrial and mining enterprises, scientific research units, universities and colleges, engineering quality supervision stations and the like.

Chinese patent No. CN209911100U discloses a multifunctional electrohydraulic servo universal tester, which comprises a machine base and a support assembly, wherein the support assembly comprises two upright posts, two lead screws, an upper beam and a lower beam, the upper beam is arranged on the machine base through the two upright posts, two ends of the two lead screws are respectively rotatably arranged on the upper beam and the machine base, the lower beam is sleeved on the two upright posts and the two lead screws, and the rotation of the lead screws can drive the upper beam to lift; the clamping assembly comprises a motor, an upper clamp and a lower clamp, the motor is arranged on one side of the upper cross beam far away from the lower cross beam, an output shaft of the motor penetrates through the upper cross beam to be connected with the upper clamp, and the lower clamp is arranged on one side of the lower cross beam close to the upper clamp; during the use, press from both sides the test piece tightly through lower clamp and upper clamp, then rotate the lead screw and order about the entablature and rise to the realization is to the tensile test of test piece.

The above prior art solutions have the following drawbacks: some test pieces are heavier, the position of the testing machine is higher, the test piece needs to be lifted to a higher position manually, and the test piece is clamped tightly through the upper clamp and the lower clamp, so that time and labor are wasted, and the test piece is very inconvenient.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a servo steel strand wires testing machine test piece of electricity liquid lifts device has the advantage of being convenient for lift the test piece.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a servo steel strand wires testing machine test piece of electricity liquid lifts device, includes the frame and sets up organism on the frame, go up to keep silent, keep silent down and lift the car, it sets up in the top of organism to go up to keep silent, keep silent the activity down and set up in the bottom of organism, be provided with the elevating gear who is used for ordering about down to keep silent in the organism, it is provided with the clamping part that is used for the centre gripping test piece on the car to lift, it is provided with the driving piece that is used for ordering about clamping part horizontal motion on the car to lift, it is provided with the drive assembly who is used for ordering about the clamping.

Through adopting above-mentioned technical scheme, install the test piece on the clamping part, make the clamping part press from both sides tight test piece. Through drive assembly rising clamping part, the test piece shifts up thereupon, rises to the height that is close to last keeping silent until the test piece, orders about clamping part through the driving piece and moves towards the horizontal direction, makes clamping part and test piece move to in the organism to be located under the last keeping silent. And lifting the clamping part again to enable the test piece to extend into the upper jaw, so that the upper jaw clamps the test piece. And finally, loosening the test piece by the clamping part, driving the clamping part to move out of the machine body through the driving piece, driving the lower jaw to move upwards through the lifting device, and clamping the test piece to perform the test. The clamping part is used for clamping the test piece, the clamping part is driven to lift the test piece at a higher position through the driving piece and the driving assembly, manual lifting is not needed, time and labor are saved, and operation is convenient.

The present invention may be further configured in a preferred embodiment as: the clamping part comprises two vertically arranged clamping plates, a supporting plate is horizontally arranged on the lifting vehicle, the two clamping plates are arranged on the supporting plate in a sliding mode, and the lifting vehicle is provided with a driving device used for driving the two clamping plates to be close to or far away from each other.

Through adopting above-mentioned technical scheme, order about two grip blocks through drive arrangement and be close to each other or keep away from to make two grip blocks press from both sides tightly or loosen the test piece, the distance between two grip blocks is adjustable, makes the grip block can carry out the centre gripping to the test piece of equidimension not, has improved the commonality.

The present invention may be further configured in a preferred embodiment as: the driving device comprises a servo motor and a bidirectional screw rod, the bidirectional screw rod is horizontally and rotatably arranged on the supporting plate, an output shaft of the servo motor is fixedly connected with the bidirectional screw rod in a coaxial mode, the two clamping plates are respectively sleeved with the two clamping plates in a threaded rotating mode, the two clamping plates are oppositely threaded, and the bottoms of the clamping plates are abutted to the top wall of the supporting plate.

Through adopting above-mentioned technical scheme, rotate through the two-way lead screw of servo motor drive to drive two grip blocks and be close to each other or keep away from convenient operation.

The present invention may be further configured in a preferred embodiment as: the clamping plates are arc-shaped plates, concave surfaces of the clamping plates are matched with the test piece, and the concave surfaces of the two clamping plates are arranged oppositely.

Through adopting above-mentioned technical scheme, set up the grip block into the arc, make grip block and test piece agree with mutually, improved the stability of centre gripping.

The present invention may be further configured in a preferred embodiment as: and anti-skid grains are arranged on the concave surfaces of the two clamping plates, which are close to each other.

Through adopting above-mentioned technical scheme, the friction of grip block with the test piece has been increased in setting up of protection line, has further improved the stability of centre gripping.

The present invention may be further configured in a preferred embodiment as: and a rubber layer is arranged on the concave surface of each of the two clamping plates, which is close to each other.

Through adopting above-mentioned technical scheme, the damage that causes the test piece when the grip block centre gripping test piece has been reduced in the setting of rubber layer.

The present invention may be further configured in a preferred embodiment as: the driving part is arranged to be an air cylinder, the lifting vehicle is horizontally provided with a movable plate, the air cylinder is horizontally and fixedly arranged on the movable plate, and a piston rod of the air cylinder is fixedly connected with the supporting plate.

Through adopting above-mentioned technical scheme, order about backup pad horizontal movement through the cylinder, the clamping part can be along with backup pad horizontal movement, convenient operation.

The present invention may be further configured in a preferred embodiment as: the driving assembly comprises a driving motor, a screw rod, a first bevel gear and a second bevel gear, the screw rod is vertically rotated and arranged on the lift truck, the first bevel gear is coaxially and fixedly arranged on the screw rod, the driving motor is horizontally arranged on the lift truck, the second bevel gear is coaxially and fixedly arranged on an output shaft of the driving motor, the first bevel gear is meshed with the second bevel gear, a guide rod is vertically and fixedly arranged on the lift truck, the movable plate is rotatably sleeved on the guide rod, and the movable plate is rotatably sleeved on the screw rod.

Through adopting above-mentioned technical scheme, order about the second bevel gear through driving motor and rotate, second bevel gear drives first bevel gear and drives, and first bevel gear drives the screw rod and rotates, and under the guide effect of guide bar, the fly leaf can be followed vertical direction and gone up and down to drive clamping part oscilaltion, convenient operation.

To sum up, the utility model discloses following beneficial technological effect has:

1. the clamping part is used for clamping the test piece, the clamping part is driven by the driving part and the driving assembly to lift the test piece at a higher position, manual lifting is not needed, time and labor are saved, and the operation is convenient;

2. the two clamping plates are driven to be close to or far away from each other through the driving device, so that the two clamping plates clamp or loosen the test piece, the distance between the two clamping plates is adjustable, the clamping plates can clamp the test pieces with different sizes, and the universality is improved;

3. the clamping plate is arranged to be the arc-shaped plate, so that the clamping plate is matched with the test piece, and the clamping stability is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is an enlarged schematic view of portion B of FIG. 1;

fig. 4 is a sectional view of the housing.

Reference numerals: 1. a machine base; 11. a limiting plate; 2. a body; 21. a column; 22. an upper cross beam; 221. an upper jaw; 23. a lower cross beam; 231. a lower jaw; 3. a machine door; 4. a lifting device; 41. a speed-regulating motor; 42. a chain; 43. a sprocket; 44. a lead screw; 5. lifting the vehicle; 51. a roller; 52. a support plate; 521. a support; 53. a movable plate; 54. a guide bar; 541. a stopper; 55. a push rod; 6. a clamping portion; 61. a clamping plate; 611. anti-skid lines; 612. a rubber layer; 7. a drive device; 71. a servo motor; 72. a bidirectional screw rod; 8. a cylinder; 9. a drive assembly; 91. a drive motor; 92. a first bevel gear; 93. a second bevel gear; 94. a screw.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Refer to fig. 1, fig. 4, for the utility model discloses a device is lifted to servo steel strand wires testing machine test piece of electricity liquid, including frame 1, organism 2 and gate 3, frame 1 is square seat, and organism 2 is fixed to be set up in the top of frame 1. Organism 2 sets up to inside hollow cuboid cover, and door 3 articulates in the one end of organism 2, and organism 2 and door 3 all adopt transparent material to make. Four upright posts 21 are vertically and fixedly arranged in the machine body 2, an upper cross beam 22 is fixedly arranged at the tops of the upright posts 21, and an upper jaw 221 is arranged at the bottom of the upper cross beam 22. The bottom of the machine body 2 is provided with a lower beam 23, and the top of the lower beam 23 is provided with a lower jaw 231.

Referring to fig. 1 and 4, a lifting device 4 for driving the lower jaw 231 to lift is disposed on the machine base 1, and the lifting device 4 includes a speed-regulating motor 41, a chain 42, two chain wheels 43 and two lead screws 44. The two lead screws 44 are vertically and rotatably arranged at the top of the machine base 1, and the lower beam 23 is rotatably sleeved on the two lead screws 44 in a threaded manner. The two chain wheels 43 are coaxially and fixedly arranged at the bottoms of the two lead screws 44 respectively, and the chain wheels 43 are wound between the two chain wheels 43. The speed regulating motor 41 is vertically and fixedly arranged at the bottom of the machine base 1, an output shaft of the speed regulating motor 41 faces upwards vertically, and an output shaft of the speed regulating motor 41 is coaxially and fixedly connected with one of the chain wheels 43. One chain wheel 43 and one lead screw 44 are driven to rotate by the speed regulating motor 41, and the other chain wheel 43 and the other lead screw 44 are driven to rotate by the chain 42, so that the lower cross beam 23 and the lower jaw 231 are driven to lift.

Referring to fig. 1 and 2, the lifting vehicle 5 is further included, a push rod 55 is obliquely arranged on the lifting vehicle 5, and four corners of the bottom of the lifting vehicle 5 are respectively provided with four rollers 51, so that the lifting vehicle 5 can be moved conveniently. The lifting vehicle 5 is horizontally and movably provided with a supporting plate 52, a clamping part 6 for clamping a test piece is arranged on the supporting plate 52, and the clamping part 6 comprises two vertically arranged clamping plates 61. The clamping plate 61 is arranged as an arc-shaped plate, the concave surfaces of the two clamping plates 61 are oppositely arranged, and the clamping plates are matched with the test piece.

Referring to fig. 1 and 2, the concave surfaces of the clamping plates 61 close to each other are provided with anti-slip lines 611, so that friction between the clamping plates 61 and a test piece is increased, and clamping stability is improved. The surface of the antiskid veins 611 is provided with a rubber layer 612 for reducing the damage to the test piece when the clamping plate 61 clamps the test piece.

Referring to fig. 1 and 2, the support plate 52 is provided with a driving device 7 for driving the two clamping plates 61 to approach or separate from each other, and the driving device 7 includes a servo motor 71 and a bidirectional screw 72. The support plate 52 is fixedly provided with a bracket 521, the bidirectional screw 72 is horizontally and rotatably arranged on the bracket 521, the servo motor 71 is horizontally and fixedly arranged on the support plate 52, and an output shaft of the servo motor 71 is coaxially and fixedly connected with the bidirectional screw 72. The two clamping plates 61 are respectively sleeved on two opposite ends of the bidirectional screw rod 72 in a rotating manner, and the bottom of the clamping plate 61 is abutted against the top wall of the supporting plate 52. The servo motor 71 drives the bidirectional screw 72 to rotate, so that the clamping plates 61 can be driven to mutually approach or separate from each other on the supporting plate 52, and the clamping or loosening of the test piece is completed.

Referring to fig. 1, a movable plate 53 is horizontally disposed on the lift truck 5, a driving member for driving the clamping portion 6 to move horizontally is disposed on the movable plate 53, and the driving member is configured as a cylinder 8. The cylinder 8 is horizontally fixed on the movable plate 53, and a piston rod of the cylinder 8 is fixedly connected with the support plate 52. The supporting plate 52 is pushed by the cylinder 8 to move horizontally, so that the clamping part 6 is driven to move horizontally, and a test piece can be conveniently stretched into the machine body 2.

Referring to fig. 1 and 3, a driving assembly 9 for driving the clamping portion 6 to ascend and descend is disposed on the lift truck 5, and the driving assembly 9 includes a driving motor 91, a first bevel gear 92, a second bevel gear 93 and a screw 94. The screw rod 94 is vertically and rotatably arranged on the lifting vehicle 5, and the first bevel gear 92 is coaxially and fixedly arranged on the screw rod 94. The driving motor 91 is horizontally and fixedly arranged on the lift truck 5, the first bevel gear 92 is coaxially and fixedly arranged on the output shaft of the driving motor 91, and the first bevel gear 92 is meshed with the second bevel gear 93.

Referring to fig. 1 and 3, the lifting cart 5 is vertically and fixedly provided with a guide rod 54, the movable plate 53 is threadedly sleeved on the screw rod 94, and the movable plate 53 is slidably sleeved on the guide rod 54. A stopper 541 is fixedly disposed on the top of the guide rod 54 for effectively preventing the movable plate 53 from being separated from the screw 94. The second bevel gear 93 is driven to rotate by the driving motor 91, and the second bevel gear 93 drives the first bevel gear 92 to rotate, so as to drive the screw rod 94 to rotate, and the movable plate 53 and the clamping portion 6 can be driven to ascend and descend.

Referring to fig. 1, two limiting plates 11 are fixedly disposed on the machine base 1 for limiting the position of the lifting cart 5, so that the specimen on the clamping portion 6 can be located at the center of the upper jaw 221 and the lower jaw 231.

The implementation principle of the embodiment is as follows: the test piece is placed between the two clamping plates 61, the two-way screw 72 is driven to rotate through the servo motor 71, and therefore the two clamping plates 61 are driven to be close to each other until the two clamping plates 61 clamp the test piece tightly. The driving motor 91 drives the second bevel gear 93 to rotate, the second bevel gear 93 drives the first bevel gear 92 to drive, the first bevel gear 92 drives the screw rod 94 to rotate, and under the guiding action of the guide rod 54, the movable plate 53 can ascend along the vertical direction, so as to drive the supporting plate 52 to ascend, and the clamping portion 6 and the test piece ascend accordingly. Until the test piece rises to a height close to the upper jaw 221, the supporting plate 52 is driven by the air cylinder 8 to move horizontally, and the clamping part 6 and the test piece move horizontally along with the test piece until the test piece extends into the machine body 2 and is positioned right below the upper jaw 221. The gripping portion 6 is raised and lowered again, so that the specimen is inserted into the upper jaw 221, and the upper jaw 221 grips the specimen. And finally, the servo motor 71 drives the bidirectional screw rod 72 to rotate reversely, so that the two clamping plates 61 are driven to be away from each other, and the clamping of the clamping plates 61 on the test piece is released.

Order about backup pad 52 and clamping part 6 through cylinder 8 towards the direction motion of keeping away from organism 2, shift out in following organism 2 until grip block 61 to the completion is lifted the test piece, need not the manual work and lifts labour saving and time saving, convenient operation. The speed regulating motor 41 drives one chain wheel 43 and one lead screw 44 to rotate, and the chain 42 drives the other chain wheel 43 and the other lead screw 44 to rotate, so that the lower cross beam 23 and the lower jaw 231 are driven to ascend, and the lower jaw 231 clamps the test piece, and the test can be performed.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a servo steel strand testing machine test piece of electricity liquid lifts device, includes frame (1) and sets up organism (2) on frame (1), goes up to keep silent (221) and keep silent (231) down, it sets up in the top of organism (2) to go up to keep silent (221), keep silent (231) activity down and set up in the bottom of organism (2), be provided with in organism (2) and be used for ordering about down elevating gear (4) that keep silent (231) go up and down, its characterized in that: still including lifting vehicle (5), be provided with clamping part (6) that are used for the centre gripping test piece on lifting vehicle (5), be provided with the driving piece that is used for ordering about clamping part (6) horizontal motion on lifting vehicle (5), be provided with drive assembly (9) that are used for ordering about clamping part (6) and go up and down on lifting vehicle (5).

2. The device of claim 1 for lifting test pieces of the electro-hydraulic servo steel strand testing machine is characterized in that: clamping part (6) are including two vertical grip blocks (61) that set up, lifting vehicle (5) are improved level and are provided with backup pad (52), two grip block (61) slide and set up on backup pad (52), lifting vehicle (5) are provided with and are used for driving about drive arrangement (7) that two grip blocks (61) are close to each other or are kept away from.

3. The device is lifted to servo steel strand testing machine test piece of electricity of claim 2, its characterized in that: drive arrangement (7) include servo motor (71) and two-way lead screw (72), two-way lead screw (72) level is rotated and is set up on backup pad (52), servo motor (71) output shaft and two-way lead screw (72) coaxial fixed connection, two-way lead screw (72) screw thread rotation cover is located respectively to grip block (61) screw thread revolves to opposite both ends, just the bottom of grip block (61) and the roof butt of backup pad (52).

4. The device of claim 3 for lifting test pieces of the electro-hydraulic servo steel strand testing machine is characterized in that: the clamping plate (61) is an arc-shaped plate, the concave surface of the clamping plate (61) is matched with the test piece, and the concave surfaces of the two clamping plates (61) are arranged oppositely.

5. The device of claim 4 for lifting a test piece of the electro-hydraulic servo steel strand testing machine, which is characterized in that: the concave surfaces of the two clamping plates (61) close to each other are provided with anti-skid grains (611).

6. The device of claim 5 for lifting a test piece of the electro-hydraulic servo steel strand testing machine, which is characterized in that: and a rubber layer (612) is arranged on the concave surfaces of the two clamping plates (61) which are close to each other.

7. The device of claim 1 for lifting test pieces of the electro-hydraulic servo steel strand testing machine is characterized in that: the driving part is arranged to be an air cylinder (8), the lifting vehicle (5) is horizontally provided with a movable plate (53), the air cylinder (8) is horizontally and fixedly arranged on the movable plate (53), and a piston rod of the air cylinder (8) is fixedly connected with the supporting plate (52).

8. The device of claim 7 for lifting a test piece of an electro-hydraulic servo steel strand testing machine, which is characterized in that: the driving assembly (9) comprises a driving motor (91), a screw rod (94), a first bevel gear (92) and a second bevel gear (93), the screw rod (94) is vertically and rotatably arranged on the lift truck (5), the first bevel gear (92) is coaxially and fixedly arranged on the screw rod (94), the driving motor (91) is horizontally arranged on the lift truck (5), the second bevel gear (93) is coaxially and fixedly arranged on an output shaft of the driving motor (91), the first bevel gear (92) is meshed with the second bevel gear (93), a guide rod (54) is vertically and fixedly arranged on the lift truck (5), the movable plate (53) is rotatably sleeved on the guide rod (54), and the movable plate (53) is rotatably sleeved on the screw rod (94) in a threaded manner.