CN211206044U - Universal testing machine - Google Patents
Universal testing machine Download PDFInfo
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- CN211206044U CN211206044U CN201922351769.9U CN201922351769U CN211206044U CN 211206044 U CN211206044 U CN 211206044U CN 201922351769 U CN201922351769 U CN 201922351769U CN 211206044 U CN211206044 U CN 211206044U
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Abstract
The utility model relates to an universal tester, relate to the technical field of metal material experiment, it includes the host computer body, four guide support post of last fixed surface of perpendicular to host computer body on the host computer body, the one end fixedly connected with entablature of the host computer body is kept away from to the guide support post, the entablature is provided with the clamp on being close to a terminal surface of the host computer body, be provided with the bottom end rail between the host computer body and the entablature, the length direction and the guide support post of bottom end rail edge guide support post slide and be connected, the upper surface of the host computer body still is provided with the briquetting down, the bottom end rail is provided with the lower clamp on being close to a terminal surface of entablature, the bottom end rail is close. The utility model discloses both can carry out tensile test to steel, also can carry out compression test to steel, improve the commonality of equipment.
Description
Technical Field
The utility model belongs to the technical field of the technique of metal material experiment and specifically relates to a universal tester is related to.
Background
The universal testing machine is also called a universal material testing machine or a tensile machine, and is mainly used for the tensile test of metal materials with obvious yield phenomena. The universal material testing machine is a product combining modern electronic technology and mechanical transmission technology, is a large-scale precision testing instrument which fully exerts respective special advantages of electromechanics, and has the characteristics of wide measuring range, high precision, quick response and the like.
At present, the announcement day is 2015 year 06 month 24 days, and chinese utility model patent that the announcement number is CN204422320U provides a steel is tensile uses universal tester, including the universal tester body, be provided with the frame on the universal tester body, the upper end of frame is provided with anchor clamps, and anchor clamps under the lower extreme fixed connection of frame, the length direction and the frame of going up anchor clamps along the frame slide and be connected. When the device is used, two ends of steel to be tested are clamped on the upper clamp and the lower clamp respectively, and then the upper clamp moves upwards to stretch the steel.
The above prior art solutions have the following drawbacks: the universal testing machine can only carry out the tensile test of steel, can not carry out the compression test of the steel, and has low universality.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an universal tester can carry out the tensile test of steel, also can carry out the compression test of steel, has improved the commonality of equipment to the not enough of prior art existence.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides a universal testing machine, including the host computer body, four guide support posts of last fixed surface of perpendicular to host computer body on the host computer body, the one end fixedly connected with entablature of the host computer body is kept away from to the guide support post, the entablature is provided with the top tong on being close to a terminal surface of the host computer body, be provided with the bottom end rail between the host computer body and the entablature, the length direction and the guide support post of bottom end rail along the guide support post slide and be connected, the upper surface of the host computer body still is provided with down the briquetting, the bottom end rail is provided with the bottom tong on being close to a terminal surface of entablature, the bottom.
By adopting the technical scheme, when the upper clamp and the lower clamp respectively clamp two ends of steel, the lower beam slides downwards to perform a tensile test on the steel; when the steel is placed on the lower pressing block, the lower cross beam slides downwards at the moment, so that the upper pressing block is pressed at one end of the steel, which is far away from the lower pressing block, and then the compression test can be carried out on the steel; the test bed has two purposes, improves the universality of equipment, further reduces the occupation of a test field, and saves the test cost; the setting of direction support post can be for the gliding of bottom end rail play the guide effect, can support the entablature simultaneously, and the entablature is not fixed a position.
The present invention may be further configured in a preferred embodiment as: the main machine body is provided with a driving mechanism used for driving the lower cross beam to move, the driving mechanism comprises a lead screw, the axis of the lead screw is parallel to the sliding direction of the lower cross beam, one end of the lead screw is rotatably connected with the upper cross beam, the other end of the lead screw is rotatably connected with the main machine body, and the lower cross beam is in threaded connection with the lead screw.
By adopting the technical scheme, the lower cross beam can be controlled to slide up and down by rotating the lead screw, and then the universal testing machine is controlled to carry out a tensile test or a compression test.
The present invention may be further configured in a preferred embodiment as: the lead screw sets up to two, and two lead screw symmetries set up the both sides at last briquetting.
By adopting the technical scheme, the bending moment borne by the lower cross beam during movement is reduced, so that the lower cross beam is more stably driven during sliding, and the measurement precision of the universal testing machine is more accurate.
The present invention may be further configured in a preferred embodiment as: a first corrugated pipe is arranged on the main machine body, and a second corrugated pipe is arranged on the upper cross beam; one end of the first corrugated pipe, which is far away from the main machine body, is fixedly connected with the lower cross beam, and the first corrugated pipe is sleeved outside the screw rod; one end of the second corrugated pipe, which is far away from the upper cross beam, is also fixedly connected with the lower cross beam, and the second corrugated pipe is also sleeved outside the screw rod.
By adopting the technical scheme, when the lower cross beam moves upwards, the first corrugated pipe is extended, and the second corrugated pipe is shortened; when the lower cross beam moves upwards, the second corrugated pipe is extended, and the first corrugated pipe is shortened; therefore no matter the bottom end rail rebound or move down, including first wave pipe and second bellows all can wrap up the lead screw, the piece adhesion that collapses when avoiding the experiment is on the lead screw, and then influences the transmission of lead screw.
The present invention may be further configured in a preferred embodiment as: the driving mechanism further comprises a driving motor, a first chain wheel, two second chain wheels and a chain, the driving motor is fixedly connected in the main body, the first chain wheel is coaxially and fixedly connected with an output shaft of the driving motor, the two second chain wheels are respectively and coaxially and fixedly connected with the two lead screws, and the chain is sleeved on the outer peripheral surfaces of the first chain wheel and the two second chain wheels.
Through adopting above-mentioned technical scheme, owing to set up two sprockets, driving motor can just two lead screws of synchronous drive rotate simultaneously, and then makes the both ends feed speed of bottom end rail the same for the bottom end rail is more steady when the motion.
The present invention may be further configured in a preferred embodiment as: the lower pressing block is connected with the main machine body in a sliding mode along the sliding direction of the lower cross beam, a hydraulic cylinder for driving the lower pressing block is further arranged in the main machine body, the axis of the hydraulic cylinder is parallel to the sliding direction of the lower pressing block, the cylinder body of the hydraulic cylinder is fixedly connected with the main machine body, and the piston rod of the hydraulic cylinder is fixedly connected with the lower pressing block.
By adopting the technical scheme, because the compressive stress borne by the metal material is far greater than the tensile stress of the metal material, when a compression experiment is carried out, the hydraulic cylinder is used for driving the lower pressing block to move towards the upper pressing block, the compressive force borne by the metal material is increased, and the compression performance of the universal testing machine is improved.
The present invention may be further configured in a preferred embodiment as: the driving mechanism further comprises a tensioning assembly, the tensioning assembly comprises a third chain wheel, a support frame, a stud and a first nut, the third chain wheel is arranged on the inner side of the chain and meshed with the chain, the hydraulic cylinder is arranged on the inner side of the chain, the stud is fixedly connected with the main machine body, the axis of the stud is perpendicular to the axis of the third chain wheel, the support frame is sleeved on the outer peripheral surface of the stud, the third chain wheel is rotatably connected with the support frame, the first nut is arranged between the support frame and the main machine body, the first nut is in threaded connection with the stud, and the first nut is abutted to the support frame.
By adopting the technical scheme, the hydraulic cylinder is arranged on the inner side of the chain, so that the hydraulic cylinder cannot be interfered when the chain runs; and screw up first nut moreover, make first nut support tightly on the support frame, the support frame alright in order to drive third sprocket tensioning chain, reduce the probability of chain tow chain, improve equipment operation's stability.
The present invention may be further configured in a preferred embodiment as: the tensioning assembly further comprises a second nut, the second nut is in threaded connection with the stud, and the second nut is arranged between the first nut and the main machine body.
Through adopting above-mentioned technical scheme, support the support frame tightly at first nut after, screw up the second nut, make the second nut support tightly first nut, prevent that first nut is not hard up through the frictional force between first nut and the second nut, and then make the third sprocket keep the tensioning dynamics.
The present invention may be further configured in a preferred embodiment as: the driving mechanism further comprises a tensioning assembly, the tensioning assembly comprises a third chain wheel, a support frame, a stud and a first nut, the third chain wheel is arranged on the outer side of the chain and meshed with the chain, the hydraulic cylinder is arranged on the outer side of the chain, the stud is fixedly connected with the main machine body, the axis of the stud is perpendicular to the axis of the third chain wheel, the support frame is sleeved on the outer peripheral surface of the stud, the third chain wheel is rotatably connected with the support frame, the first nut is arranged between the support frame and the main machine body, the first nut is in threaded connection with the stud, and the first nut is abutted to the support frame.
By adopting the technical scheme, the hydraulic cylinder is arranged on the outer side of the chain, so that the hydraulic cylinder cannot be interfered when the chain runs, and meanwhile, the chain can be dismounted without dismounting the hydraulic cylinder, and the chain is convenient for an operator to maintain; and screw up first nut moreover, make first nut that looses support tightly on the support frame, the support frame alright in order to drive third sprocket tensioning chain, reduce the probability of chain tow chain, improve equipment operation's stability.
The present invention may be further configured in a preferred embodiment as: the tensioning assembly further comprises a second nut, the second nut is in threaded connection with the stud, and the second nut is arranged between the first nut and the main machine body.
Through adopting above-mentioned technical scheme, support the support frame tightly at first nut after, screw up the second nut, make the second nut support tightly first nut, prevent that first nut is not hard up through the frictional force between first nut and the second nut, and then make the third sprocket keep the tensioning dynamics.
To sum up, the utility model discloses a following at least one useful technological effect:
1. through the setting of bottom end rail, and the bottom end rail slides along the length direction and the guide post of guide post and is connected for this universal tester both can carry out tensile test to steel, also can carry out compression test to steel, has improved the commonality of equipment.
2. Through the setting of first bellows and second bellows, no matter the bottom end rail rebound still moves down, including first bellows and second bellows all can wrap up the lead screw, the piece adhesion that collapses when avoiding the experiment is on the lead screw, and then influences the transmission of lead screw.
3. Through the arrangement of the tensioning assembly, the hydraulic cylinder is arranged on the inner side of the chain, so that the hydraulic cylinder cannot be interfered when the chain runs; and screw up first nut moreover, make first nut support tightly on the support frame, the support frame alright in order to drive third sprocket tensioning chain, reduce the probability of chain tow chain, improve equipment operation's stability.
4. Through the arrangement of the tensioning assembly, the hydraulic cylinder is arranged on the outer side of the chain, so that the hydraulic cylinder cannot be interfered when the chain runs, and meanwhile, the chain can be detached without detaching the hydraulic cylinder, and the chain is convenient to maintain for operators; and screw up first nut moreover, make first nut that looses support tightly on the support frame, the support frame alright in order to drive third sprocket tensioning chain, reduce the probability of chain tow chain, improve equipment operation's stability.
Drawings
FIG. 1 is a schematic overall structure diagram according to a first embodiment;
FIG. 2 is a schematic partial structure diagram according to the first embodiment;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
FIG. 4 is a schematic partial structure diagram according to the second embodiment;
fig. 5 is a partially enlarged view of a portion B in fig. 4.
Reference numerals: 1. a main body; 11. a guiding support column; 12. a first bellows; 13. a second bellows; 14. a hydraulic cylinder; 15. pressing the block; 2. an upper cross beam; 21. an upper clamp; 3. a lower cross beam; 31. a lower clamp; 32. pressing the blocks; 4. a drive mechanism; 41. a lead screw; 42. a drive motor; 43. a first sprocket; 44. a second sprocket; 45. a chain; 5. a tension assembly; 51. a third sprocket; 52. a support frame; 521. rotating the rod; 522. a shaft sleeve; 53. a stud; 54. a first nut; 55. a second nut.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
referring to fig. 1 and 2, the universal testing machine comprises a main machine body 1, wherein four guide support columns 11 are welded on the main machine body 1 and perpendicular to the upper surface of the main machine body 1 or fixedly connected with the main machine body 1 through bolts. One end of the guide support column 11, which is far away from the main machine body 1, is fixedly connected with an upper cross beam 2 through a bolt, and an upper clamp 21 is arranged on one end face of the upper cross beam 2, which is close to the main machine body 1. A lower beam 3 is arranged between the main body 1 and the upper beam 2, a lower clamp 31 is arranged on one end face of the lower beam 3 close to the upper beam 2, and the lower beam 3 is connected with the guide support column 11 in a sliding manner along the length direction of the guide support column 11.
The upper surface of the main body 1 is also provided with a lower pressing block 15, the lower pressing block 15 is connected with the main body 1 in a sliding manner along the length direction of the guide support column 11, and an upper pressing block 32 is welded or fixedly connected with the lower cross beam 3 through a bolt on the end surface close to the main body 1.
The main body 1 is also provided with a hydraulic cylinder 14 for driving the lower pressing block 15 to slide, the axis of the hydraulic cylinder 14 is parallel to the sliding direction of the lower pressing block 15, the cylinder body of the hydraulic cylinder 14 is fixedly connected to the main body 1 through a bolt, and the piston rod of the hydraulic cylinder 14 is fixedly connected with the lower pressing block 15 through a bolt.
The main body 1 is further provided with a driving mechanism 4 for driving the lower beam 3 to slide, and the driving mechanism 4 comprises a driving motor 42, a first chain wheel 43, a second chain wheel 44, a chain 45 and a lead screw 41. Wherein the number of the lead screws 41 is two, the two lead screws 41 are symmetrically arranged at two sides of the lower pressing block 15, and the two lead screws 41 are both in threaded connection with the lower cross beam 3. The upper ends of the two lead screws 41 are rotatably connected with the upper cross beam 2, and the ends of the two lead screws 41 penetrate through the upper surface of the main body 1 to enter the main body 1.
The second sprockets 44 are also provided in two, and the two second sprockets 44 are respectively keyed on the outer peripheral surfaces of the two lead screws 41. The driving motor 42 is fixedly connected to the main body 1, the first chain wheel 43 is connected to the output shaft of the driving motor 42 in a key manner, and then the chain 45 is sleeved on the outer peripheral surfaces of the first chain wheel 43 and the two second chain wheels 44.
The main body 1 is provided with a first corrugated pipe 12 for protecting the lead screw 41, and the upper beam 2 is provided with a second corrugated pipe 13 for protecting the lead screw 41. One end of the first corrugated pipe 12 is fixedly connected to the upper surface of the main body 1 through a bolt, the other end of the first corrugated pipe 12 is fixedly connected to the lower surface of the lower cross beam 3 through a bolt, and the first corrugated pipe 12 is sleeved on the outer peripheral surface of the lead screw 41. One end of the second bellows 13 is fixedly connected to the lower surface of the upper beam 2 by a bolt, the other end of the second bellows 13 is fixedly connected to the upper surface of the lower beam 3 by a bolt, and the second bellows 13 is sleeved on the outer peripheral surface of the lead screw 41.
Referring to fig. 2 and 3, the driving mechanism 4 further includes a tensioning assembly 5 for tensioning the chain 45, and the tensioning assembly 5 includes a third sprocket 51, a support bracket 52, a stud 53, a first nut 54 and a second nut 55. One end of the stud 53 is welded to the main body 1, and a first nut 54 and a second nut 55 are screwed to the outer peripheral surface of the stud 53.
The support frame 52 includes a shaft sleeve 522 and a rotating rod 521, the rotating rod 521 is welded on the outer peripheral surface of the shaft sleeve 522, and the rotating rod 521 is perpendicular to the axis of the shaft sleeve 522. The shaft sleeve 522 is sleeved on the outer peripheral surface of the stud 53, one end of the shaft sleeve 522 close to the main body 1 is abutted with the first nut 54, and the second nut 55 is abutted with one end of the first nut 54 far from the shaft sleeve 522. The third chain wheel 51 is coaxially and rotatably connected to the rotating rod 521, the chain 45 is also sleeved on the outer peripheral surface of the third chain wheel 51, and the hydraulic cylinder 14 is arranged inside the chain 45.
The implementation principle of the embodiment is as follows:
when the tensile test is performed, the two ends of the steel are clamped on the upper clamp and the lower clamp respectively, then the driving motor 42 is started, the two lead screws 41 are driven to rotate in the same direction by the first chain wheel 43, the chain 45 and the second chain wheel 44, and the lower cross beam 3 is driven to move along the direction of the guide support column 11 away from the upper cross beam 2, so that the tensile test is performed on the steel.
When a compression test is carried out, firstly, steel is placed on the upper surface of the lower pressing block 15, then the driving motor 42 is started, the position of the lower cross beam 3 is adjusted, the upper pressing block 32 is pressed on one end surface, away from the lower pressing block 15, of the steel, then the driving motor 42 is closed, the hydraulic cylinder 14 is started, and the lower pressing block 15 is driven to move towards the upper pressing block 32 through the hydraulic cylinder 14; therefore, the pressure borne by the steel can be increased, the driving motor 42 can be prevented from being burnt and the lead screw 41 can be prevented from being deformed, and the driving mechanism 4 is protected.
Example two:
referring to fig. 4 and 5, a universal testing machine is different from the first embodiment in that a hydraulic cylinder 14 is provided outside a chain 45.
The implementation principle of the embodiment is as follows:
when the driving mechanism 4 is maintained, the chain 45 can be sent out by screwing the second nut 55 and the first nut 54 in the direction of the main frame, and compared with the first embodiment, the chain 45 can be taken down without detaching the hydraulic cylinder 14, so that an operator can conveniently maintain the universal testing machine.
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 (10)
1. The utility model provides a universal tester, including the host computer body (1), a serial communication port, the last fixed surface of perpendicular to host computer body (1) is connected with four guide support post (11) on the host computer body (1), one end fixedly connected with entablature (2) of host computer body (1) are kept away from in guide support post (11), be provided with clamp (21) on entablature (2) is close to the terminal surface of host computer body (1), be provided with bottom end rail (3) between host computer body (1) and entablature (2), length direction and the guide support post (11) the connection of sliding of bottom end rail (3) along guide support post (11), the upper surface of host computer body (1) still is provided with lower briquetting (15), be provided with lower clamp (31) on the terminal surface that bottom end rail (3) is close to entablature (2), fixedly connected with briquetting (32) on bottom end rail (3) is close to the terminal surface of host computer body.
2. The universal testing machine of claim 1, wherein: the main frame body (1) is provided with a driving mechanism (4) used for driving the lower cross beam (3) to move, the driving mechanism (4) comprises a lead screw (41), the axis of the lead screw (41) is parallel to the sliding direction of the lower cross beam (3), one end of the lead screw (41) is rotatably connected with the upper cross beam (2), the other end of the lead screw (41) is rotatably connected with the main frame body (1), and the lower cross beam (3) is in threaded connection with the lead screw (41).
3. The universal testing machine of claim 2, wherein: the number of the screw rods (41) is two, and the two screw rods (41) are symmetrically arranged on two sides of the upper pressing block (32).
4. The universal testing machine of claim 3, wherein: a first corrugated pipe (12) is arranged on the main machine body (1), and a second corrugated pipe (13) is arranged on the upper cross beam (2); one end of the first corrugated pipe (12) far away from the main machine body (1) is fixedly connected with the lower cross beam (3), and the first corrugated pipe (12) is sleeved outside the screw rod (41); one end, far away from the upper cross beam (2), of the second corrugated pipe (13) is also fixedly connected with the lower cross beam (3), and the second corrugated pipe (13) is also sleeved outside the screw rod (41).
5. The universal testing machine of claim 3, wherein: the driving mechanism (4) further comprises a driving motor (42), a first chain wheel (43), two second chain wheels (44) and a chain (45), the driving motor (42) is fixedly connected in the main machine body (1), the first chain wheel (43) is coaxially and fixedly connected with an output shaft of the driving motor (42), the two second chain wheels (44) are respectively and coaxially and fixedly connected with the two lead screws (41), and the chain (45) is sleeved on the outer peripheral surfaces of the first chain wheel (43) and the two second chain wheels (44).
6. The universal testing machine of claim 5, wherein: the lower pressing block (15) is connected with the main machine body (1) in a sliding mode along the sliding direction of the lower cross beam (3), a hydraulic cylinder (14) used for driving the lower pressing block (15) is further arranged in the main machine body (1), the axis of the hydraulic cylinder (14) is parallel to the sliding direction of the lower pressing block (15), the cylinder body of the hydraulic cylinder (14) is fixedly connected with the main machine body (1), and the piston rod of the hydraulic cylinder (14) is fixedly connected with the lower pressing block (15).
7. The universal testing machine according to claim 5 or 6, wherein: the driving mechanism (4) further comprises a tensioning assembly (5), the tensioning assembly (5) comprises a third chain wheel (51), a support frame (52), a stud (53) and a first nut (54), the third chain wheel (51) is arranged on the inner side of the chain (45) and meshed with the chain (45), a hydraulic cylinder (14) is arranged on the inner side of the chain (45), the stud (53) is fixedly connected with the main machine body (1), the axis of the stud (53) is perpendicular to the axis of the third chain wheel (51), the support frame (52) is sleeved on the outer circumferential surface of the stud (53), the third chain wheel (51) is rotatably connected with the support frame (52), the first nut (54) is arranged between the support frame (52) and the main machine body (1), the first nut (54) is in threaded connection with the stud (53), and the first nut (54) is further abutted to the support frame (52).
8. The universal testing machine of claim 7, wherein: the tensioning assembly (5) further comprises a second nut (55), the second nut (55) is in threaded connection with the stud (53), and the second nut (55) is arranged between the first nut (54) and the main machine body (1).
9. The universal testing machine according to claim 5 or 6, wherein: the driving mechanism (4) further comprises a tensioning assembly (5), the tensioning assembly (5) comprises a third chain wheel (51), a support frame (52), a third stud (53) and a first nut (54), the third chain wheel (51) is arranged on the outer side of the chain (45) and meshed with the chain (45), the hydraulic cylinder (14) is arranged on the outer side of the chain (45), the stud (53) is fixedly connected with the main machine body (1), the axis of the stud (53) is perpendicular to the axis of the third chain wheel (51), the support frame (52) is sleeved on the outer peripheral surface of the stud (53), the third chain wheel (51) is rotatably connected with the support frame (52), the first nut (54) is arranged between the support frame (52) and the main machine body (1), the first nut (54) is in threaded connection with the stud (53), and the first nut (54) is further abutted to the support frame (52).
10. The universal testing machine of claim 9, wherein: the tensioning assembly (5) further comprises a second nut (55), the second nut (55) is in threaded connection with the stud (53), and the second nut (55) is arranged between the first nut (54) and the main machine body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922351769.9U CN211206044U (en) | 2019-12-20 | 2019-12-20 | Universal testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922351769.9U CN211206044U (en) | 2019-12-20 | 2019-12-20 | Universal testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211206044U true CN211206044U (en) | 2020-08-07 |
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ID=71888301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922351769.9U Active CN211206044U (en) | 2019-12-20 | 2019-12-20 | Universal testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211206044U (en) |
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2019
- 2019-12-20 CN CN201922351769.9U patent/CN211206044U/en active Active
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