CN213689164U

CN213689164U - Universal testing machine

Info

Publication number: CN213689164U
Application number: CN202022590240.5U
Authority: CN
Inventors: 寇光明; 桑运梅; 邓娅; 罗旭
Original assignee: Sichuan Tiezheng Engineering Testing Co ltd
Current assignee: Sichuan Tiezheng Engineering Testing Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-07-13
Anticipated expiration: 2030-11-10

Abstract

The utility model relates to an universal tester, it includes the frame, be provided with the workstation on the frame, be provided with stretching device on the workstation, stretching device is used for drawing the test piece, be provided with clamping device on the workstation, clamping device is used for carrying out the centre gripping to the test piece, it is provided with the removal subassembly still to slide on the workstation, the removal subassembly is arranged in removing the test piece to stretching device behind clamping device centre gripping test piece. This application can avoid anchor clamps to cause the injury to the staff to a certain extent.

Description

Universal testing machine

Technical Field

The application relates to the field of detection equipment, in particular to a universal testing machine.

Background

The universal testing machine is a material testing machine integrating the functions of stretching, bending, compressing, shearing, ring rigidity and the like. The universal testing machine is mainly used for mechanical property tests of metal and non-metal materials, integrates modern advanced technologies, has the advantages of high precision, wide speed regulation range, compact structure, convenience in operation, stable performance and the like, and is ideal detection equipment for departments such as industrial and mining enterprises, scientific research units, colleges and universities, engineering quality supervision stations and the like.

In view of the above-mentioned related technologies, the inventor thinks that when a worker puts a test piece into a tensile fixture with a hand, the jaw of the tensile fixture may be clamped to a finger due to mistaken touch of a switch, which causes injury to the worker and reduces the safety of the universal testing machine during use.

SUMMERY OF THE UTILITY MODEL

In order to avoid anchor clamps to cause the injury to the staff to a certain extent, this application provides a universal tester.

The application provides a universal tester adopts following technical scheme:

the utility model provides an universal testing machine, includes the frame, be provided with the workstation on the frame, be provided with stretching device on the workstation, stretching device is used for drawing the test piece, be provided with clamping device on the workstation, clamping device is used for carrying out the centre gripping to the test piece, it is provided with the removal subassembly still to slide on the workstation, the removal subassembly is arranged in removing the test piece to stretching device behind clamping device centre gripping test piece.

Through adopting above-mentioned technical scheme, the staff passes through clamping device behind the test piece centre gripping, utilizes the removal subassembly to put into stretching device with the test piece of clamping on the clamping device in, opens stretching device and draws the tensile properties in order to detect the test piece to the test piece, utilizes clamping device to have removed the staff from and puts into stretching device with the hand with the test piece, has avoided to a certain extent because of the mistake touches the switch and causes the anchor clamps to keep silent and press from both sides the condition emergence that the finger caused the injury to the staff.

Optionally, a sliding groove is formed in the workbench, the moving assembly includes a moving block and a sliding block, the moving block is slidably disposed on the workbench, the sliding block is disposed on a side wall of the moving block, which is close to the workbench, the sliding block is slidably disposed on the workbench through the sliding groove, and the clamping device is disposed on the moving block.

Through adopting above-mentioned technical scheme, the staff promotes the movable block, utilizes the sliding fit of slider and spout, drives the movable block and removes to stretching device's direction to be convenient for make clamping device send the test piece of centre gripping into in the stretching device.

Optionally, the clamping device includes a clamping member and a driving mechanism, and the driving mechanism is configured to drive the second clamping member to be close to the first clamping member, so as to clamp the test piece.

Through adopting above-mentioned technical scheme, in the staff will wait that the test piece that detects is vertical to be put into the space of first holder and second holder, utilize actuating mechanism to make the second holder be close to first holder, make the both sides of test piece by first holder and second holder looks butt to be convenient for carry out the centre gripping to the test piece.

Optionally, the driving mechanism includes a limiting block, a threaded rod and a rotating member, and the rotating member is used for driving the threaded rod to rotate; the movable block is provided with a limiting groove, the limiting block is arranged on the movable block in a sliding mode through the limiting groove, the limiting block is provided with a threaded hole, one end of the threaded rod is inserted into the threaded hole and is in threaded fit with the threaded hole, the other end of the threaded rod is arranged on the inner end wall of the limiting groove in a rotating mode, the first clamping piece is connected with the movable block, and the second clamping piece is connected with the limiting block.

Through adopting above-mentioned technical scheme, utilize and rotate the piece and order about the threaded rod and rotate, because the threaded rod and the screw hole screw-thread fit of stopper for the stopper removes in the spacing inslot, and the stopper drives the second holder and removes to first holder, thereby carries out centre gripping, convenient and fast to the test piece between first holder and second holder.

Optionally, the holding tank has been seted up to the one side that lies in the threaded rod on the movable block and keeps away from the stopper, rotate the piece and include dwang, crank handle and first bevel gear, the dwang is located the holding tank, the crank handle sets up the one end that stretches out the movable block on the dwang, first bevel gear coaxial line sets up on the dwang, the one end coaxial line that the threaded rod extends to in the holding tank is provided with second bevel gear, second bevel gear meshes with first bevel gear mutually.

Through adopting above-mentioned technical scheme, the staff drives the dwang through rotating the crank handle and rotates, and first bevel gear on the dwang rotates thereupon, because first bevel gear meshes with second bevel gear mutually, and second bevel gear drives the threaded rod and rotates to make the stopper on the threaded rod remove in the spacing inslot.

Optionally, the movable block and the limiting block are provided with clamping grooves, the first clamping piece and the second clamping piece are provided with clamping blocks, the first clamping piece is detachably matched with the movable block through the clamping blocks, and the second clamping piece is detachably matched with the limiting block through the clamping blocks.

By adopting the technical scheme, when clamping is needed, the clamping block on the first clamping piece is aligned with the clamping groove on the moving block and vertically inserted, and then the clamping block and the moving block can be connected; the clamping block on the second clamping piece is aligned with the clamping groove on the limiting block to be vertically inserted, so that the second clamping piece and the limiting block can be connected; utilize the connected mode in joint piece and joint groove, be convenient for when not needing to use dismantle first holder and second holder.

Optionally, the moving block and the limiting block are hinged to each other and provided with a blocking piece, and the blocking piece is used for limiting the clamping block to slide out of the clamping groove.

Through adopting above-mentioned technical scheme, utilize the articulated piece that blocks that sets up to be convenient for install and dismantle first joint piece and second joint piece, improved the stability of connecting to a certain extent.

Optionally, the workbench is further provided with a surrounding part, and the surrounding part is used for surrounding a test area on the workbench.

Through adopting above-mentioned technical scheme, utilize to enclose and protect the piece and separate the fender to the test area, avoided to a certain extent if piece that test pieces such as reinforcing bar produced when breaking bursts out and injures the experimenter, improved experimental security.

In summary, the present application includes at least one of the following beneficial technical effects:

1. after a worker clamps a test piece through the clamping device, the test piece clamped on the clamping device is placed into the stretching device through the moving assembly, the stretching device is started to stretch the test piece to detect the stretching performance of the test piece, the clamping device is used for avoiding the worker from placing the test piece into the stretching device by hands, and the situation that the clamp jaws clamp fingers to cause injury to the worker due to mistaken touch of a switch is avoided to a certain extent;

2. the worker pushes the moving block, and the sliding fit of the sliding block and the sliding groove drives the moving block to move towards the stretching device, so that the clamping device can conveniently send the clamped test piece into the stretching device;

3. utilize the enclosure to separate the fender to the test area, avoided piece that produces when test pieces such as reinforcing bar break to a certain extent to burst out the injury to the tester, improved experimental security.

Drawings

FIG. 1 is a schematic structural view of a universal tester according to an embodiment of the present application.

Figure 2 is a schematic view of the structure after the openable and closable protective door is hidden for showing the stretching device and the moving assembly.

Fig. 3 is a partial schematic view showing the holding device after the worktable is hidden.

Fig. 4 is an enlarged schematic view of a portion a in fig. 3.

Fig. 5 is a partial schematic view for showing the drive mechanism.

Description of reference numerals: 1. a machine base; 11. a tool box; 12. a door can be opened and closed; 2. a work table; 21. a column; 211. a cross beam; 22. a control panel; 23. a chute; 3. stretching the clamp; 31. an upper clamp; 32. a lower clamp; 4. a clamping device; 41. a first clamping member; 411. a first connecting rod; 4111. a clamping block; 412. a first abutment block; 4121. a rubber pad; 42. a second clamping member; 421. a second connecting rod; 422. a second abutment block; 43. a drive mechanism; 431. a limiting block; 4311. a threaded hole; 432. a threaded rod; 4321. a second bevel gear; 433. a rotating member; 4331. rotating the rod; 4332. a handle is rocked; 4333. a first bevel gear; 5. a moving assembly; 51. a moving block; 511. a clamping groove; 512. a limiting groove; 513. accommodating grooves; 5131. a rolling bearing; 514. a blocking member; 52. a slider; 6. a switchable shutter; 61. and (4) strip-shaped holes.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a universal testing machine. Referring to fig. 1, the universal testing machine comprises a base 1, wherein the base 1 is a rectangular body, a tool chamber 11 is formed in the base 1, the tool chamber 11 is used for placing a testing tool, an openable door 12 is hinged on the base 1, and the openable door 12 is used for covering the tool chamber 11; the top of the machine base 1 is provided with a workbench 2, the shape of the workbench 2 can be rectangular, triangular or circular, and the shape of the workbench 2 in the embodiment is rectangular; four upright posts 21 are respectively vertically arranged at four corners of the upper end surface of the workbench 2, a cross beam 211 is arranged at the top of each upright post 21, the length direction of the cross beam 211 is perpendicular to that of the upright posts 21, and a stretching device is arranged at the bottom of the cross beam 211 and used for stretching a test piece.

Referring to fig. 2, in the present embodiment, the stretching device is a stretching clamp 3, the stretching clamp 3 is divided into an upper clamp 31 and a lower clamp 32, the upper clamp 31 is fixedly disposed at the bottom of the cross beam 211, the lower clamp 32 is disposed right below the upper clamp 31 and slidably disposed on the column 21, the upper clamp 31 and the lower clamp 32 are opposite to each other in the vertical direction, and a stretching test area of the test piece is formed between the upper clamp 31 and the lower clamp 32; the workbench 2 is further provided with a control panel 22, the control panel 22 is provided with a plurality of keys, the upper clamp 31 and the lower clamp 32 are respectively electrically connected with the control panel 22, the jaws of the upper clamp 31 and the lower clamp 32 can be driven to clamp and release through the keys on the control panel 22, and the lower clamp 32 can also be driven to slide up and down on the upright post 21. The universal tester is a common device in the market at present, and a person skilled in the art can clearly know the driving mode after looking at the universal tester, and the universal tester is not required to be described herein again.

The staff makes the lower clamp 32 in a proper position by pressing a button on the control panel 22, the button is used to control the jaw locking of the lower clamp 32 to clamp the lower end of the test piece, the lower clamp 32 is driven to slowly rise on the upright post 21 to send the test piece into the jaw of the upper clamp 31, the jaw locking of the upper clamp 31 is controlled to clamp the upper end of the test piece, the test piece is further fixed between the upper clamp 31 and the lower clamp 32, the lower clamp 32 is driven to slowly fall on the upright post 21 to stretch the test piece, and therefore the tensile property of the test piece is detected.

Referring to fig. 1, a surrounding member is further arranged on the workbench 2, and the surrounding member is used for surrounding a test area on the workbench 2; enclose the spare and be switch shutter 6, but seted up a plurality of bar holes 61 on the switch shutter 6, the condition of bar hole 61 staff in to the test area of being convenient for is observed, but is provided with the handle on the switch shutter 6, but the staff of being convenient for switch shutter 6 opens and closes. But utilize switch shutter 6 to separate the fender to the test area when carrying out tensile test to the test piece, avoided to a certain extent if piece that test pieces such as reinforcing bar produced when breaking bursts out and injures the tester, improved experimental security.

Referring to fig. 2, a clamping device 4 and a moving assembly 5 are further disposed on the worktable 2, the clamping device 4 is used for clamping a test piece, and the moving assembly 5 is used for moving the test piece into a jaw of the lower clamp 32 after the clamping device 4 clamps the test piece.

Referring to fig. 2, a sliding groove 23 is formed in the workbench 2, the length direction of the sliding groove 23 is perpendicular to the cross beam 211, and two ends of the sliding groove 23 are sealed; specifically, the moving assembly 5 comprises a moving block 51 and a sliding block 52, the sliding block 52 is slidably arranged on the workbench 2 through the sliding groove 23, and the moving block 51 is fixedly connected with the sliding block 52 close to the side wall of the workbench 2; in this embodiment, the sliding groove 23 is a T-shaped groove, and the sliding block 52 is a T-shaped block, so that the sliding block 52 is more stable when moving on the workbench 2 through the sliding groove 23 by the cooperation of the T-shaped block and the T-shaped groove; the side wall of the moving block 51 far away from the stretching clamp 3 is provided with a handle, so that a worker can conveniently push the moving block 51 to move on the workbench 2 through the handle.

The moving block 51 is pushed by a handle on the moving block 51, and the sliding fit between the sliding block 52 and the sliding groove 23 is utilized to drive the moving block 51 to move towards the tensile clamp 3, so that the test piece on the clamping device 4 is moved into the jaw of the lower clamp 32, and the test piece is conveniently stretched.

Referring to fig. 2 and 3, the clamping device 4 includes a first clamping member 41, a second clamping member 42, and a driving mechanism 43, wherein the driving mechanism 43 is used for driving the second clamping member 42 to approach the first clamping member 41 so as to clamp the test piece. Specifically, the first clamping member 41 includes a first connecting rod 411 and a first abutting block 412, and the second clamping member 42 includes a second connecting rod 421 and a second abutting block 422; the driving mechanism 43 comprises a limiting block 431, a threaded rod 432 and a rotating piece 433, wherein the rotating piece 433 is used for driving the threaded rod 432 to rotate; the length direction of the first connecting rod 411 is perpendicular to the length direction of the cross beam 211, the length directions of the first connecting rod 411 and the second connecting rod 421 are consistent, the first connecting rod 411 is detachably matched with the moving block 51, and the second connecting rod 421 is detachably matched with the limiting block 431.

Referring to fig. 3 and 4, specifically, clamping grooves 511 are formed in the side walls of the moving block 51 and the limiting block 431, which are close to the lower fixture 32; in this embodiment, the clamping groove 511 is a dovetail groove, the dovetail groove is provided with an opening at the top and a seal at the bottom, the first connecting rod 411 and the second connecting rod 421 are both provided with clamping blocks 4111, the clamping blocks 4111 are dovetail blocks, and the first connecting rod 411 and the second connecting rod 421 can be conveniently detached by the insertion and matching of the dovetail blocks and the dovetail groove; the clamping block 4111 may also be a T-shaped block, and the clamping groove 511 may also be a T-shaped groove. The end faces, close to the opening of the dovetail groove, of the moving block 51 and the limiting block 431 are provided with blocking pieces 514 in a hinged mode, in the embodiment, the blocking pieces 514 are blocking rods, and the blocking rods are used for limiting the dovetail blocks to slide out of the dovetail groove, so that connection stability is improved to a certain extent.

Referring to fig. 5, the first abutting block 412 is arranged at one end of the first connecting rod 411 far away from the moving block 51, the second abutting block 422 is arranged at one end of the second connecting rod 421 far away from the limiting block 431, the first abutting block 412 and the second abutting block 422 are on the same horizontal line, and rubber pads 4121 are covered on the end faces, close to each other, of the first abutting block 412 and the second abutting block 422, so that the friction force between the first abutting block 412 and the test piece is increased, the stability during clamping is improved, and the condition that the test piece drops when the test piece is clamped is avoided to a certain extent.

Referring to fig. 3 and 5, a limiting groove 512 is formed in a side wall of the moving block 51 on a side close to the second abutting block 422, a length direction of the limiting groove 512 is perpendicular to a length direction of the second connecting rod 421, the limiting block 431 is slidably disposed on the moving block 51 through the limiting groove 512, a threaded hole 4311 is formed in the side wall of the limiting block 431, one end of the threaded rod 432 located in the limiting groove 512 is inserted in the threaded hole 4311 and is in threaded fit with the threaded hole 4311, a length direction of the threaded rod 432 is identical to the limiting groove 512, an accommodating groove 513 is formed in the moving block 51 on a side, away from the limiting block 431, of the threaded rod 432, and one end of the threaded rod 432 extending into the accommodating groove 513 is rotatably disposed on an; the rotating member 433 includes a rotating rod 4331, a rocking handle 4332 and a first bevel gear 4333, the rotating rod 4331 is inserted into the accommodating groove 513 and is perpendicular to the threaded rod 432, the rocking handle 4332 is disposed at one end of the rotating rod 4331 extending out of the moving block 51, the first bevel gear 4333 is coaxially disposed on the rotating rod 4331, a second bevel gear 4321 is coaxially disposed on the threaded rod 432, and the second bevel gear 4321 is engaged with the first bevel gear 4333.

Specifically, in the present embodiment, the embodiment in which the threaded rod 432 is rotatably disposed on the inner end wall of the accommodation groove 513 is: a rolling bearing 5131 is arranged on the inner end wall of the accommodating groove 513, and the threaded rod 432 penetrates through an inner ring of the rolling bearing 5131 and is in interference fit with the rolling bearing 5131; the connection mode of utilizing interference fit can let threaded rod 432 realize the rotation under the condition that is fixed in on the inner endwall of holding tank 513, produces elastic pressure between threaded rod 432 and antifriction bearing 5131 to it is more firm to make the connection, has simple structure, advantage that the axiality is good.

The staff will wait that the test piece that detects is vertical to be put into in the space of first butt joint piece 412 and second butt joint piece 422, through rotating rocking handle 4332, drive dwang 4331 and rotate, first bevel gear 4333 on the dwang 4331 rotates along with it, because first bevel gear 4333 meshes with second bevel gear 4321, second bevel gear 4321 drives threaded rod 432 and rotates, because threaded rod 432 and the screw hole 4311 screw-thread fit of stopper 431, make stopper 431 on the threaded rod 432 move in spacing groove 512, stopper 431 drives the second carriage release lever and moves to first carriage release lever, thereby drive second butt joint piece 422 and move to first butt joint piece 412, make the both sides of test piece tightly butt joint by first butt joint piece 412 and second butt joint piece 422, thereby stably centre gripping the test piece, the condition that the test piece drops has been avoided to a certain extent.

The implementation principle of the universal testing machine in the embodiment of the application is as follows: when a worker needs to detect a test piece, the first connecting rod 411 is installed on the moving block 51 and the second connecting rod 421 is installed on the limiting block 431 through the insertion fit of the dovetail block and the dovetail groove; then, a test piece to be detected is vertically placed in a gap between the first abutting block 412 and the second abutting block 422, the rocking handle 4332 is rotated, the rocking handle 4332 drives the rotating rod 4331 to rotate, the first bevel gear 4333 on the rotating rod 4331 rotates along with the rotating rod 4331, the first bevel gear 4333 is meshed with the second bevel gear 4321, so that the second bevel gear 4321 drives the threaded rod 432 to rotate, the threaded rod 432 is in threaded fit with the threaded hole 4311 of the limiting block 431, so that the limiting block 431 on the threaded rod 432 moves in the limiting groove 512, the limiting block 431 drives the second moving rod to move towards the first moving rod, the second abutting block 422 is driven to move towards the first abutting block 412, and the first abutting block 412 and the second abutting block 422 tightly abut against the test piece to be detected, so that the test piece is stably clamped;

then, the moving block 51 is pushed by a handle on the moving block 51, and the moving block 51 is driven to move towards the direction of stretching the clamp 3 by the sliding fit of the sliding block 52 and the sliding groove 23; then, by pressing a button on the control panel 22, the lower clamp 32 is in a proper position and the jaw of the lower clamp 32 is opened, so that the test piece clamped in the first abutting block 412 and the second abutting block 422 is vertically placed in the jaw, the jaw of the lower clamp 32 is controlled by the button to be locked so as to clamp the lower end of the test piece, the rocking handle 4332 is rotated to separate the second abutting block 422 from the first abutting block 412, and then the moving block 51 is pulled back; and then the lower clamp 32 is driven to slowly rise on the upright post 21 to send the test piece into the jaw of the upper clamp 31, the jaw of the upper clamp 31 is controlled to be locked to clamp the upper end of the test piece, the test piece is further fixed between the upper clamp 31 and the lower clamp 32, the openable protection door 6 is closed, the lower clamp 32 is driven to slowly fall on the upright post 21 to stretch the test piece, and therefore the tensile property of the test piece is detected.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A universal testing machine is characterized in that: including frame (1), be provided with workstation (2) on frame (1), be provided with stretching device on workstation (2), stretching device is used for drawing the test piece, be provided with clamping device (4) on workstation (2), clamping device (4) are used for carrying out the centre gripping to the test piece, it is provided with removal subassembly (5) still to slide on workstation (2), removal subassembly (5) are used for removing the test piece behind clamping device (4) centre gripping test piece in the stretching device.

2. The universal tester of claim 1, wherein: the clamping device is characterized in that a sliding groove (23) is formed in the workbench (2), the moving assembly (5) comprises a moving block (51) and a sliding block (52), the moving block (51) is arranged on the workbench (2) in a sliding mode, the sliding block (52) is arranged on the side wall, close to the workbench (2), of the moving block (51), the sliding block (52) is arranged on the workbench (2) in a sliding mode through the sliding groove (23), and the clamping device (4) is arranged on the moving block (51).

3. The universal tester of claim 2, wherein: the clamping device (4) comprises a first clamping piece (41), a second clamping piece (42) and a driving mechanism (43), wherein the driving mechanism (43) is used for driving the second clamping piece (42) to be close to the first clamping piece (41) so as to clamp the test piece.

4. The universal tester of claim 3, wherein: the driving mechanism (43) comprises a limiting block (431), a threaded rod (432) and a rotating piece (433), and the rotating piece (433) is used for driving the threaded rod (432) to rotate; the clamping device comprises a moving block (51), a limiting groove (512) is formed in the moving block (51), the limiting block (431) is arranged on the moving block (51) in a sliding mode through the limiting groove (512), a threaded hole (4311) is formed in the limiting block (431), one end of a threaded rod (432) is inserted into the threaded hole (4311) and is in threaded fit with the threaded hole (4311), the other end of the threaded rod is rotatably arranged on the inner end wall of the limiting groove (512), a first clamping piece (41) is connected with the moving block (51), and a second clamping piece (42) is connected with the limiting block (431).

5. The universal tester of claim 4, wherein: holding tank (513) have been seted up to one side that lies in threaded rod (432) on movable block (51) and keeps away from stopper (431), rotate piece (433) including dwang (4331), rocking handle (4332) and first bevel gear (4333), dwang (4331) are located holding tank (513), rocking handle (4332) set up the one end that stretches out movable block (51) on dwang (4331), first bevel gear (4333) coaxial line sets up on dwang (4331), the one end coaxial line that threaded rod (432) extended to holding tank (513) is provided with second bevel gear (4321), second bevel gear (4321) mesh with first bevel gear (4333).

6. The universal tester of claim 5, wherein: the clamping groove (511) has been all seted up on movable block (51) and stopper (431), all be provided with joint piece (4111) on first holder (41) and the second holder (42), cooperation can be dismantled through joint piece (4111) and movable block (51) in first holder (41), cooperation can be dismantled through joint piece (4111) and stopper (431) in second holder (42), cooperation can be dismantled through joint piece (4111) and stopper (431).

7. The universal tester of claim 6, wherein: the moving block (51) and the limiting block (431) are hinged to stop pieces (514), and the stop pieces (514) are used for limiting the clamping block (4111) to slide out of the clamping groove (511).

8. The universal tester of claim 1, wherein: the test bed is characterized in that a surrounding part is further arranged on the workbench (2), and the surrounding part is used for surrounding a test area on the workbench (2).