CN110608957A - Falling weight type impact tester - Google Patents
Falling weight type impact tester Download PDFInfo
- Publication number
- CN110608957A CN110608957A CN201810620162.3A CN201810620162A CN110608957A CN 110608957 A CN110608957 A CN 110608957A CN 201810620162 A CN201810620162 A CN 201810620162A CN 110608957 A CN110608957 A CN 110608957A
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- impact
- seat
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- group
- rod
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/303—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated only by free-falling weight
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/001—Impulsive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0033—Weight
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A falling weight type impact tester comprises a base, a sliding rod group, an impact group, a pulling group, a clamp group and a control unit. The hanging seat of the pulling group is driven to move to the clamping position and located above the impact group by operating the control unit, and the control unit drives the pulling group to complete the combination with the impact group. And then the control unit is operated to enable the pulling group and the impact group to displace towards the direction of the upper rod seat along the sliding rod until the releasing position is close to the direction of the upper rod seat. Thus, the subsequent drop weight impact test procedure can be executed. The impact test is carried out on the object to be tested in a mode of falling weight from top to bottom.
Description
Technical Field
The invention relates to an impact tester, in particular to a type of impacting an object to be tested in a top-down weight dropping mode, and sensing and recording parameters and data results of an impact test.
Background
The material is subjected to a characteristic experiment of physical properties, which is beneficial to factory production and monitoring of material characteristics so as to meet required production specifications, maintain the quality of produced materials, prevent the materials after subsequent mass production from having defects, reduce the probability of production defects through timely detection, and further become a reference basis in component design.
The material experiment can judge the manufacturing conditions and processing parameters of the material by the experimental process and record, and is helpful for research and development of new materials. Common material tests include hardness test, fatigue test, tensile test, impact test and the like, and various test items are different according to different detection purposes, wherein the impact test is a quite common material detection test and is mainly used for measuring the impact absorption capacity of a material to know the toughness of the material.
Examples of the currently known impact-related patents include an impact testing apparatus of taiwan patent No. I418773, a drop testing machine of taiwan new patent No. M463841, a ball drop impact testing apparatus of taiwan new patent No. M391096, a drop testing system and method of taiwan patent No. I311641, and a drop testing machine of taiwan new patent No. M287432.
Disclosure of Invention
The present invention is directed to overcome the above-mentioned drawbacks of the prior art, and provides a falling weight impact testing machine, which performs an impact test on an object to be tested in a top-down falling weight manner to obtain parameters and data related to the test sensing and recording.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a falling weight type impact tester comprises a base, a sliding rod group, an impact group, a pulling group, a clamp group and a control unit, wherein: the base is provided with a mounting surface, a plurality of impact sensors for sensing the mounting surface are arranged in the base, and the impact sensors are in signal connection with the control unit; the slide bar group comprises a lower bar seat, a lower bar seat which are arranged in opposite positions, and a plurality of slide bars, the two ends of which are respectively fixed on the lower bar seat and the lower bar seat, and the lower bar seat is fixed on the installation surface of the base, so that the slide bar group is positioned on the installation surface and extends upwards, and an operation space is formed between the upper bar seat and the lower bar seat at intervals; the clamp group is used for bearing an object to be tested, is arranged at an impact position in the operation space and is fixed on the lower rod seat; the impact group comprises an impact seat and a plurality of punches, the impact seat is arranged along the plurality of slide bars in a sliding way and is positioned in the operation space to move towards the upper rod seat and the lower rod seat, one of the plurality of punches is arranged at an installing head at the lower end of the impact seat and faces towards the direction of the clamp group, the upper end of the impact group is provided with a bearing surface, the bearing surface is provided with a long rod which extends upwards and faces towards the direction of the upper rod seat, and the outer surface of the long rod is annularly provided with a plurality of outer annular grooves which are arranged at intervals; the pulling set includes a hanging seat with a through hole for the part of the long rod with the outer ring slot to pass through, a bolt plate set is set in the hanging seat, a transmission mechanism is set on the lower rod seat and connected with the control unit by signal, the control unit drives the transmission mechanism to drive the hanging seat at a clamping position and above the impact seat, and drives the bolt plate set to move towards the outer ring slots of the long rod and clamp each other to a locking state, the control unit drives the transmission mechanism to drive the hanging seat to move along the sliding rods towards the upper rod seat at the clamping position until a releasing position in the operating space is close to the upper rod seat; the control unit drives the plug pin plate group to move away from the plurality of outer ring grooves of the long rod to be in a release state, so that the impact seat falls down from the release position in the operation space along the plurality of slide rods towards the clamp group by gravity, and one of the plurality of punch heads collides with the impact position of the object to be tested of the clamp group.
The impact test device has the beneficial effects that the impact test is carried out on the object to be tested in a mode of falling weight from top to bottom, and relevant parameters and data for test sensing and recording are obtained.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a perspective view of the impact tester of the present invention.
FIG. 2 is a front view of the drop weight impact tester of the present invention.
FIG. 3 is a schematic view of the present invention pulling the stack toward the impact stack.
FIG. 4 is a schematic view of the present invention before the pulling group is locked to the punching group.
Fig. 4a is a schematic top view of the pulling group of the present invention.
FIG. 4b is a schematic view of the locking state of the pulling group and the impact group according to the present invention.
FIG. 5 is a schematic view of the present invention showing the pulling assembly moving with the impact assembly and being pulled by the blocking sleeve to assume the blocking position, and installing the punch on the impact assembly.
FIG. 6 is a schematic view of the pulling group and the striking group of the present invention moving to a release position.
FIG. 7 is a schematic view of the impact set of the present invention falling by gravity off of its own travel from the pull set and release position.
FIG. 8 is a schematic view of the punch of the impact set impacting the test object.
FIG. 9 is a schematic view of the reverse handle of the present invention inverted on the impact base.
FIG. 10 is a schematic view of the counterweight block of the present invention pre-installed in a counter-load container.
FIG. 11 is a schematic view of the counterweight block stacked in the container.
FIG. 12 is a schematic view of a reaction mass of the present invention disposed in a drop weight impact tester.
FIG. 13 is a schematic view of the reaction mass of the present invention moving to a release position in cooperation with the impact mass.
FIG. 14 is a schematic view of the reaction group of the present invention moving toward the impact position in cooperation with the impact group.
Fig. 15 is a schematic view of the attachment of the impact weight plate of the present invention to a long rod and threaded rod.
Fig. 16 is a schematic view of an impact weight plate of the present invention stacked on a load bearing surface.
FIG. 17 is a schematic view of a female impact type clamp assembly of the present invention.
FIG. 18 is a perspective view of a clamp assembly of the present invention with portions of the tandem column removed.
FIG. 19 is a partially exploded perspective view of a suitable percussive impact type clamp set of the present invention.
FIG. 20 is a perspective view of a combination of a piercing-impact type clamp set of the present invention.
FIG. 21 is a schematic view of the punch piercing impact of the impact set of the present invention to the test object.
FIG. 22 is a perspective view of the impact absorption block of the present invention mounted to the lower beam seat.
Fig. 23 is a perspective view of a punch of various forms of the invention.
The reference numbers in the figures illustrate:
1 falling weight type impact tester 10 transmission mechanism
11 screw 12 driving motor
100 protective fence 101 fixing plate
102 positioning notch
2 base 21 mounting surface
22 built-in groove
3 slide rod group 31 upper rod seat
32 lower rod seat 321 fixed pulley
33 sliding rod 34 operating space
35 side lever 36 spacer sleeve pulling plate
361 axle part 362 baffle
363 rotating handle
4 impact group 41 impact seat
410 impact linear bearing 411 bearing surface
412 long rod 4121 outer ring groove
4122 by inner section 4123 by outer section
4124 external notch of connecting segment 413
42 punch 43 mounting head
44 impact weight plate 441 slot
442 narrow groove section 443 wide groove section
444-penetrating groove 45-thread penetrating rod
46 nut and 47 limit plate
5 pulling group 51 hanging seat
510 pull the linear bearing 511 through the bore
52 bolt plate group 521 electromagnetic unit
522 driving rod 523 bolt laminated plate
524 latch spring 525 catch rib
6 60 hexagonal tools of anchor clamps group
61 upper top base 62 lower base
63 platform 64 extension rod
65 series connection column 66 puncture tube
661 tubular body portion 662 flat plate portion
663 perforating 67 press plate
671 through hole 68 fixing rod
7 control unit
8 anti-load group 81 anti-load slide rail
811 reaction buffer rod 812 reaction bottom spring
82-load-relieving container 821
8211 Wide notch section 8212 narrow notch section
822 counterload top plate 823 counterload linear bearing
824 anti-sway cable 83 reverse load cable
831 reverse-loading handle 84 reverse-loading balancing weight
841 slide rail evasion groove 842 counter weight lifting handle
9 impact buffer group 900 recess sensing group
901 sunken sensing seat 902 sunken buffer head
903 resistance ruler 904 distance scale
91 first impact buffer seat 911 impact buffer rod
92 second impact cushion 921 impact cushion bar
A test substance
Detailed Description
Referring to fig. 1 to 3, a falling weight impact tester 1 of the present invention is shown, which includes a base 2, a slide bar set 3, an impact set 4, a pulling set 5, a clamp set 6 and a control unit 7.
The base 2 has a mounting surface 21, and a plurality of impact sensors (not shown) for sensing the mounting surface 21 are disposed in the base 2, and the plurality of impact sensors (not shown) are in signal connection with the control unit 7. In addition, a built-in groove 22 is provided inward on the circumferential side of the base 2. The built-in groove 22 of the base 2 is shown in a multi-level spaced configuration.
The sliding rod set 3 includes a lower rod seat 31, an upper rod seat 32 arranged in opposite positions, and a plurality of sliding rods 33 having two ends respectively fixed to the lower rod seat 31 and the upper rod seat 32, and fixed to the mounting surface 21 of the base 2 by the lower rod seat 31, so that the sliding rod set 3 is located on the mounting surface 21 and extends upward, and an operating space 34 is formed between the upper rod seat 32 and the lower rod seat 31.
The clamping set 6 is used for carrying an object to be tested a, is disposed at an impact position in the operation space 34, and is fixed on the lower rod seat 31.
The impact set 4 includes an impact base 41, a plurality of punches 42, the impact base 41 is slidably disposed along the plurality of sliding rods 33 and is located in the operating space 34 to move toward the upper rod base 32 and the lower rod base 31, one of the plurality of punches 42 is mounted on a mounting head 43 at the lower end of the impact base 41 and faces the clamp set 6, the upper end of the impact set 4 has a bearing surface 411, the bearing surface 411 is provided with a long rod 412 extending upward and facing the upper rod base 32, and a plurality of outer ring grooves 4121 are annularly arranged on the outer surface of the long rod 412 at intervals.
The pulling assembly 5 includes a hanging seat 51, the hanging seat 51 has a through hole 511 for the portion of the long rod 412 having the outer ring groove 4121 to pass through, a pin plate set 52 is disposed in the hanging seat 51, a transmission mechanism 10 is disposed on the upper rod seat 32 and the lower rod seat 31 and is in signal connection with the control unit 7, the control unit 7 drives the transmission mechanism 10 to drive the hanging seat 51 to a clamping position and to be located at an upper position of the impact seat 41, the control unit 7 drives the pin plate set 52 to move towards the plurality of outer ring grooves 4121 of the long rod 412 and to be clamped to each other to be a locking state, the control unit 7 drives the transmission mechanism 10 to drive the hanging seat 51 to move along the plurality of sliding rods 33 towards the upper rod seat 32 at the clamping position until a releasing position in the operating space 34 and to be close to the upper rod seat 32.
The control unit 7 drives the pin plate set 52 to disengage from the plurality of outer ring grooves 4121 of the long rod 412 to a release state, so that the impact seat 41 falls down by gravity from the release position in the operating space 34 along the plurality of sliding rods 33 toward the clamp set 6, and one of the plurality of punches 42 collides with the impact position of the object a to be tested of the clamp set 6.
Referring to fig. 3 to 8, the operation mode of the falling weight impact testing machine 1 of the present invention is mainly to control the control unit 7 to drive the transmission mechanism 10 to drive the hanging seat 51 to move to the clamping position and to be located above the impact seat 41, and the control unit 7 drives the bolt plate set 52 to move toward the plurality of outer ring grooves 4121 of the long rod 412 and to be clamped and abutted to each other to be the locking state, so as to primarily complete the combination of the pulling set 5 and the impact set 4. Then, the control unit 7 is operated to drive the transmission mechanism 10 to drive the hanging seat 51 and the impact seat 41 to move along the sliding rods 33 toward the upper rod seat 32 until the release position in the operation space 34 is close to the upper rod seat 32. Thus, the subsequent drop weight impact test procedure can be executed. The distance from the impact position and the release position to the height of the object a to be tested on the clamping set 6 can be set by the control unit 7, and the clamping position can also be set by the control unit 7.
The sliding rod set 3 includes a side rod 35, two ends of the side rod 35 are respectively fixed to the lower rod seat 31 and the upper rod seat 32, and the control unit 7 is disposed on an outer surface of the side rod 35, and a rotating portion 361 of a sleeve pulling plate 36 is pivotally disposed on the side rod 35, and a baffle 362 and a rotating handle 363 respectively extend from a periphery of the rotating portion 361 of the sleeve pulling plate 36, so as to manually drive the rotating handle 363, such that the baffle 362 moves from a free position outside the operating space 34 to a blocking position inside the operating space 34 and abuts against a lower end surface of the impact seat 41 to form a blocking position. As shown in fig. 4, it is possible to select the type of the punch 42 in this state and to attach one end of the punch 42 to the attachment head 43 at the lower end position of the striking plate 41, and the type of the punch 42 of the present invention is also provided with a circular, semicircular, rectangular, bullet-shaped, or needle-shaped punch 42 as shown in fig. 23.
The transmission mechanism 10 includes a screw 11 and a driving motor 12, the driving motor 12 is driven by the signal of the control unit 7 to operate and close so as to drive the screw 11 to rotate and stop rotating, and the rotation of the screw 11 drives the hanging seat 51 of the pulling set 5 to move to the releasing position and the clamping position.
The long rod 412 of the impact seat 41 includes an inner section 4122, an outer section 4123, and a connecting section 4124 connecting the inner section 4122 and the outer section 4123, as shown in fig. 15 and 16, wherein the outer diameter of the connecting section 4124 is smaller than the outer diameters of the inner section 4122 and the outer section 4123, the outer ring grooves 4121 are spaced apart from the outer section 4123, and the inner section 4122 is closer to the bearing surface 411 of the impact seat 41 than the connecting section 4124 and the outer section 4123. The impact set 4 further includes a plurality of impact weight plates 44 stacked on the bearing surface 411, and the plurality of impact weight plates 44 are provided with a slot 441 inward from the outer peripheral side thereof, and the slot 441 includes a slot segment 442 and a slot segment 443, after the slot segment 442 of the slot 441 passes through the connecting segment 4124, the impact weight plates 44 are sleeved on the outer surface of the inner segment 4122 by the inner surface of the slot segment 443; the impact weight plates 44 are provided with a plurality of through grooves 444 in the same extending direction as the long grooves 441, the through grooves 444 penetrate through the threaded through rods 45 and the threaded through rods 45 extending upwards from the bearing surface 411, a plurality of screw caps 46 are respectively screwed on the threaded through rods 45, the screw caps 46 are pressed against the uppermost surface of the stacked impact weight plates 44, and a limiting plate 47 is fixed at the tail end of the threaded through rods 45 to limit the impact weight plates 44 from being separated from the threaded through rods 45. The plurality of impact weight plates 44 are receivable in the internal slot 22 when not in use.
The weight of the impact base 41 is 8 kg, and the weight of each of the impact weight plates 44 is 1 kg, so that about 26 impact weight plates 44 can be placed on the carrying surface 411, and the falling weight impact testing machine 1 of the present invention can be applied to 34 kg at most. If the type of weight less than 8 kg is to be tested experimentally, the following arrangement of a reaction group 8 is required.
The falling weight impact tester 1 further includes a counter load group 8, please refer to fig. 9 to 14, and the counter load group 8 includes a counter load sliding rail 81 and a counter load container 82. The two ends of the anti-load sliding rail 81 are respectively and fixedly arranged on the lower rod seat 31 and the upper rod seat 32, the anti-load container 82 penetrates through the anti-load sliding rail 81 and moves in the operation space 34 along the axial direction of the anti-load sliding rail 81 towards the direction of the lower rod seat 31 and the upper rod seat 32, one end of an anti-load cable 83 is assembled on the anti-load container 82, an anti-load handle 831 is assembled at the other end of the anti-load cable 83, the anti-load cable 83 extends to the upper rod seat 32 along the anti-load sliding rail 81, and winds around two fixed pulleys 321 arranged at intervals at the lower end of the upper rod seat 32, then faces the impact seat 41 along one of the plurality of sliding rods 33, and is reversely buckled at the peripheral side position of the impact seat 41 by the anti-load handle 831; a plurality of anti-loading weight blocks 84 are disposed in the anti-loading receiving groove 821, and a slide rail evasion groove 841 and a weight block handle 842 are disposed on opposite sides of the anti-loading weight blocks 84, respectively, the slide rail evasion groove 841 penetrates through the outer periphery of the anti-loading slide rail 81, and the weight block handle 842 is exposed outside the notch of the anti-loading receiving groove 821. The counter-load container 82 has a weight of 2.5 kg, each counter-load weight block 84 has a weight of 0.5 kg, and at most ten counter-load seed-distributing blocks 84 can be placed in the counter-load accommodating groove 821 of the counter-load container 82, so that the total weight of the counter-load container 82 and the counter-load weight blocks 84 can reach 7.5 kg (counter-load amount), and thus the weight (8 kg) of the impact base 41 is reduced by 7.5 kg, i.e. the weight impact test can be carried out by 0.5 kg, and thus the weight impact of the required weight can be further adjusted by adjusting the counter-load weight (increasing or reducing the number of the counter-load weight blocks 84).
In addition, the bottom surface of the reaction accommodating groove 821 faces the direction of the lower rod seat 31, and the bottom surface of the reaction accommodating groove 821 is inclined from the notch to the inner direction and towards the direction of the lower rod seat 31, so that the plurality of reaction balancing weights 84 are obliquely overlapped on the bottom surface of the reaction accommodating groove 821; the notch of the reaction accommodating groove 821 includes a wide notch section 8211 and a narrow notch section 8212, the plurality of reaction balancing weights 84 penetrate into the reaction accommodating groove 821 through the wide notch section 8211, and the reaction balancing weights 84 are prevented from accidentally separating from the reaction accommodating groove 821 under the limitation of the narrow notch section 8212; the counter weight 84 can be received in the built-in groove 22 of the base 2 when not in use.
The said reaction container 82 includes a reaction top plate 822, the reaction slide rail 81 has several reaction buffer rods 811 near the upper rod seat 32 and extending toward the lower rod seat 31, the several reaction buffer rods 811 are used to elastically push against the reaction top plate 822 to limit the accidental impact of the reaction container 82 toward the upper rod seat 32 along the reaction slide rail 81; the counter slide 81 is sleeved with a counter bottom spring 812 and is close to the lower rod seat 31, and the counter bottom spring 812 is used for elastically limiting the accidental impact of the counter container along the counter slide 81 toward the lower rod seat 31.
The reaction container 82 further includes a reaction linear bearing 823 and is sleeved on the reaction slide rail 81; the reverse linear bearing 823 is located between the reverse top plate 822 and the reverse accommodation groove 821; further comprises an anti-sloshing cable 824 passing through the anti-sloshing container 82, and two ends of the anti-sloshing cable 824 are fixed on the lower rod base 31 and the upper rod base 32, and the anti-sloshing cable 824 is parallel to the anti-sloshing sliding rail 81, so that the anti-sloshing cable 824 passes through the anti-sloshing container 82 to limit the anti-sloshing phenomenon caused by the sliding of the anti-sloshing container 82 along the anti-sloshing sliding rail 81.
As shown in fig. 5, further comprises a protective fence 100, the protective fence 100 is assembled around the upper rod seat 32 and the lower rod seat 31 and surrounds the working space 34; the inner side of the protective fence 100 is provided with a fixing plate 101, and the fixing plate 101 is used for the reverse-loading handle 831 to be reversed and positioned so as to stop using the reverse-loading group 8.
Referring to fig. 1 and 22, the falling weight impact testing machine 1 of the present invention further includes an impact buffering set 9, which includes a first impact buffering seat 91 and a second impact buffering seat 92, wherein the first impact buffering seat 91 and the second impact buffering seat 92 are disposed on the upper surface of the lower rod seat 31 and located in the operating space 34, and the first impact buffering seat 91 and the second impact buffering seat 92 are respectively provided with a plurality of impact buffering rods 911 and 921 extending toward the impact seat 41, so as to elastically limit the lower end of the impact seat 41 and prevent the impact seat 41 from accidentally striking toward the lower rod seat 31 along the sliding rod 33. The dent sensing set 900 is further included and disposed on the second impact buffer seat 92, the dent sensing set 900 includes a dent sensing seat 901, a dent buffer head 902, a resistance ruler 903 and a distance scale 904, the distance scale 904 is disposed on the outer periphery of the dent sensing seat 901 and is used for providing the resistance ruler 903 mounted on the dent sensing seat 901 to be adjusted to the displacement amount of the upper rod seat 32 and the lower rod seat 31, and the dent buffer head 902 is disposed on the resistance ruler 903 and acted by the impact seat 41 at the impact position, so that the sensing displacement signal of the resistance ruler 903 is transmitted to the control unit 7 to measure the dent depth dimension of the object a to be measured impacted by the falling punch 42.
The falling weight impact tester 1 of the present invention can be applied to the objects a to be tested with two types of tests, the first type is the concave type as described in the previous embodiment, and the second type is the puncture type, and the types of the clamping sets 6 required to be used for the two types of tests are described below, and the unused portions of the clamping sets 6 can be received in the built-in slots 22 of the base 2.
The recessed fixture set 6 includes an upper top base 61, a lower base 62, a platform 63, a plurality of extension rods 64 and a plurality of series-connected columns 65, as shown in fig. 17 and 18, the series-connected columns 65 can be combined between the upper top base 61 and the lower base 62 in a head-to-tail connection manner and are located at the central positions of the upper top base 61 and the lower base 62, the platform 63 is fixed on the upper surface of the upper top base 61, the upper surface of the platform 63 bears the object a to be tested to perform the impact test in the recessed manner, one end of each of the extension rods 64 is fixed on the lower rod base 31, the other end of each of the extension rods 64 penetrates through the lower base 62 and the upper top base 61 and penetrates through the upper surface of the platform 63, and the extension rods 64 are distributed at the corner positions of the lower base 62, the upper top base 61 and the platform 63.
The piercing type clamp set 6 includes an upper top seat 61, a lower base 62, a platform 63, a plurality of extension rods 64, a plurality of string posts 65, a piercing tube 66, and a pressing plate 67, as shown in fig. 19 to 21, the string posts 65 can be assembled and disassembled with a hexagonal tool, the string posts 65 are assembled between the upper top seat 61 and the lower base 62 and located at the central positions of the upper top seat 61 and the lower base 62, so as to adjust the height distance between the lower base 62 and the upper top seat 61 (platform 63), the platform 63 is fixed on the upper surface of the upper top seat 61, the piercing tube 66 includes a flat plate portion 662 connecting a tube body portion 661 with one end of the tube body portion 661, a through hole 663 passing through the tube body portion 661 and the flat plate portion 662, the tube body portion 661 is abutted against the surface of the upper top seat 61 by the opposite end of the flat plate 662, the flat plate portion 662 faces the impact base 41, a plurality of fixing rods 68 are further provided, two ends of each fixing rod fix the flat plate portion 662 and the platform 63, the pressing plate 67 is assembled on the flat plate portion 662, the lower surface of the pressing plate 67 and the upper surface of the flat plate portion 662 clamp the object to be tested a, the pressing plate 67 is provided with a through hole 671 corresponding to the through hole 663, so that the punch 42 can penetrate through the through hole 671 and the through hole 663 to impact the object to be tested a, one end of the plurality of extension rods 64 is fixed on the lower rod base 31, the other end of the plurality of extension rods 64 penetrates through the lower base 62 and the upper top base 61 and penetrates through the upper surface of the platform 63, and the plurality of extension rods 64 are distributed at the corners of the lower base 62, the upper top base 61 and the platform 63. In addition, the invention provides that the original round punch 42 is replaced by the needle-shaped punch 42 when the object A to be tested is tested in the puncture pattern.
It should be noted that the pin plate set 52 has two electromagnetic units 521, two driving rods 522, a pin stack plate 523 and a plurality of pin springs 524, as shown in fig. 4, 4a and 4b, the control unit 7 transmits a signal to drive the two electromagnetic units 521 to operate, so that the two electromagnetic units 521 respectively drive the two driving rods 522, and simultaneously the two driving rods 522 and a plurality of locking ribs 525 respectively driving the pin stack plate 523 are disengaged from the plurality of outer ring grooves 4121 of the long rod 412, so that the pulling set 5 is switched from the locking state to the releasing state with respect to the impact set 4;
the control unit 7 transmits a signal to stop the operation of the two electromagnetic units 521, the plurality of pin springs 524 pull the pin stack 523 to move, and the plurality of locking ribs 525 of the pin stack 523 are locked to the plurality of outer ring grooves 4121 of the rod 412, so that the pin plate set 52 is switched from the release state to the locking state.
Referring to fig. 4 and 15, a plurality of impact linear bearings 410 and a plurality of pull linear bearings 510 are respectively disposed in the impact base 41 and the hanging base 51, and the plurality of impact linear bearings 410 and the plurality of pull linear bearings 510 are sleeved on the plurality of sliding rods 33.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent variations and modifications made to the above embodiment according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.
Claims (13)
1. A falling weight type impact tester is characterized by comprising a base, a sliding rod group, an impact group, a pulling group, a clamp group and a control unit, wherein:
the base is provided with a mounting surface, a plurality of impact sensors for sensing the mounting surface are arranged in the base, and the impact sensors are in signal connection with the control unit;
the slide bar group comprises a lower bar seat, an upper bar seat which are arranged in a relative position, and a plurality of slide bars of which two ends are respectively fixedly arranged on the lower bar seat and the upper bar seat, and the lower bar seat is fixed on the installation surface of the base, so that the slide bar group is positioned on the installation surface and extends upwards, and an operation space is formed between the upper bar seat and the lower bar seat at intervals;
the clamp group is used for bearing an object to be tested, is arranged at an impact position in the operation space and is fixed on the lower rod seat;
the impact group comprises an impact seat and a plurality of punches, the impact seat is arranged along the plurality of slide bars in a sliding way and is positioned in the operation space to move towards the upper rod seat and the lower rod seat, one of the plurality of punches is arranged at an installing head at the lower end of the impact seat and faces towards the direction of the clamp group, the upper end of the impact group is provided with a bearing surface, the bearing surface is provided with a long rod which extends upwards and faces towards the direction of the upper rod seat, and the outer surface of the long rod is annularly provided with a plurality of outer annular grooves which are arranged at intervals;
the pulling set includes a hanging seat with a through hole for the penetration of the part of the long rod with the outer ring slot, a bolt plate set arranged in the hanging seat, a transmission mechanism arranged on the lower rod seat and the upper rod seat and connected with the control unit by signal, the control unit driving the transmission mechanism to drive the hanging seat at a clamping position and above the impact seat, and the control unit driving the bolt plate set to move towards the outer ring slots of the long rod and mutually clamped into a locking state, the control unit driving the transmission mechanism to drive the hanging seat at the clamping position to move along the sliding rods towards the upper rod seat until a release position in the operating space and close to the upper rod seat;
the control unit drives the plug pin plate group to move away from the plurality of outer ring grooves of the long rod to be in a release state, so that the impact seat falls down from the release position in the operation space along the plurality of slide rods towards the clamp group by gravity, and one of the plurality of punch heads collides with the impact position of the object to be tested of the clamp group.
2. The drop weight impact tester of claim 1, wherein a built-in groove is provided inward of the peripheral side of the base.
3. The drop-weight impact tester of claim 1, wherein the slide bar assembly comprises a side bar having two ends fixed to the lower bar seat and the upper bar seat, respectively, and the control unit is disposed on the outer surface of the side bar, and a rotation portion of a sleeve pulling plate is pivotally disposed on the side bar, and a baffle plate and a rotation handle extend around the rotation portion of the sleeve pulling plate, respectively, so as to manually drive the rotation handle to move the baffle plate from a free position outside the operating space to a blocking position against the lower end surface of the impact seat.
4. The drop-weight impact tester according to claim 2, further comprising an anti-load group, wherein the anti-load group comprises an anti-load slide rail and an anti-load container, two ends of the anti-load slide rail are respectively fixed on the lower rod base and the upper rod base, the anti-load container is inserted into the anti-load slide rail and moves axially along the anti-load slide rail in the operating space towards the lower rod base and the upper rod base, the anti-load container group is provided with one end of an anti-load cable, the other end group of the anti-load cable is provided with an anti-load handle, the anti-load cable extends to the upper rod base along the anti-load slide rail and winds around two fixed pulleys at the lower end of the upper rod base and then faces the impact base along one of the plurality of slide rods, and the anti-load handle is buckled at a lower edge of an outer gap of the impact base;
a plurality of anti-loading balancing weights are arranged in the anti-loading container in a selectable number, and a slide rail evasion groove and a balancing weight lifting handle are respectively arranged on two opposite sides of the anti-loading balancing weights, the slide rail evasion groove penetrates through the periphery side of the anti-loading slide rail, and the balancing weight lifting handle is exposed outside the notch of the anti-loading container;
the bottom surface of the anti-loading containing groove faces to the direction of the lower rod seat, and the bottom surface of the anti-loading containing groove is inclined towards the direction of the lower rod seat from the notch to the inner direction, so that the plurality of anti-loading balancing weights are obliquely superposed on the bottom surface of the anti-loading containing groove;
the notch of the anti-loading containing groove comprises a wide notch section and a narrow notch section, the plurality of anti-loading balancing weights penetrate into the anti-loading containing groove through the wide notch section, and the anti-loading balancing weights are prevented from being accidentally separated from the anti-loading containing groove under the limitation of the narrow notch section;
the anti-loading sliding rail is sleeved with an anti-loading bottom spring and is close to the lower rod seat, and the anti-loading bottom spring is used for elastically resisting and limiting the accidental impact of the anti-loading container towards the lower rod seat along the anti-loading sliding rail;
the said reaction container further includes a reaction linear bearing and is sleeved on the reaction slide rail;
the said reaction container includes a reaction top board, the reaction slide rail has several reaction buffer rods near the upper rod seat and extending toward the lower rod seat, the several reaction buffer rods are used to bounce the reaction top board to limit the accidental impact of the reaction container toward the upper rod seat along the reaction slide rail; the reaction linear bearing is positioned between the reaction top plate and the reaction containing groove;
the counter weight block can be accommodated in the built-in groove of the base;
further comprises an anti-shaking cable penetrating the anti-loading container, and two ends of the anti-shaking cable are fixed on the lower rod base and the upper rod base, and the anti-shaking cable and the anti-loading slide rail are in parallel.
5. The drop weight impact tester of claim 2, wherein the shaft of the impact base includes an inner section, an outer section, and a connecting section connecting the inner section and the outer section, wherein the outer diameter of the connecting section is smaller than the outer diameter of the inner section and the outer section, and the outer grooves are spaced apart from each other in the outer section, and the inner section is closer to the bearing surface of the impact base than the connecting section and the outer section;
the impact group further comprises a plurality of impact weight plates which are overlapped on the bearing surface, a long groove is formed in the plurality of impact weight plates from the outer peripheral side to the inner side, the long groove comprises a narrow groove section and a wide groove section, and the plurality of impact weight plates are sleeved on the outer surface of the inner section through the inner surface of the wide groove section after the narrow groove section of the long groove passes through the connecting section;
the impact weight plates are provided with a plurality of through grooves which are the same as the extending direction of the long grooves, the through grooves penetrate through a plurality of threaded through rods which extend upwards from the bearing surface, a plurality of screw caps are screwed on the threaded through rods respectively, the screw caps are pressed against the uppermost surfaces of the overlapped impact weight plates, and a limiting plate is fixed at the tail ends of the threaded through rods;
the plurality of impact weight plates can be accommodated in the built-in slot.
6. The drop-weight impact tester of claim 1, further comprising an impact buffer set including a first impact buffer seat and a second impact buffer seat, wherein the first impact buffer seat and the second impact buffer seat are disposed on the upper surface of the lower rod seat and located in the operating space, and the first impact buffer seat and the second impact buffer seat are respectively provided with a plurality of impact buffer rods extending toward the impact seat for elastically limiting the lower end of the impact seat to prevent the impact seat from accidentally impacting along the slide rod toward the lower rod seat.
7. The drop weight impact tester according to claim 6, further comprising a recess sensing set disposed on said second impact buffer base, said recess sensing set comprising a recess sensing base, a recess buffer head, a resistance ruler and a distance scale, said distance scale being disposed on the outer periphery of said recess sensing base and being adapted to provide the resistance ruler mounted on said recess sensing base to be adjusted toward the upper and lower rod bases by a displacement amount, and said recess buffer head being configured on said resistance ruler and being acted upon by said impact base when said impact base is in said impact position, such that a sensed displacement amount signal of said resistance ruler is transmitted to said control unit.
8. The drop-weight impact tester according to claim 2, wherein the fixture set comprises an upper top base, a lower base, a platform, a plurality of extension rods and a plurality of connecting columns, the connecting columns are combined between the upper top base and the lower base in a head-to-tail connection manner and are located at the central positions of the upper top base and the lower base, the platform is fixed on the upper surface of the upper top base, the upper surface of the platform bears the object to be tested for impact testing in a concave manner, one end of each of the extension rods is fixed on the lower rod base, the other end of each of the extension rods penetrates through the lower base, the upper top base and penetrates through the upper surface of the platform, and the extension rods are distributed at the corner positions of the lower base, the upper top base and the platform; the clamp group can be accommodated in the built-in groove of the base when not used.
9. The drop-weight impact tester according to claim 2, wherein the clamping set comprises an upper top seat, a lower base seat, a platform, a plurality of extension rods, a plurality of serially connected columns, a piercing tube, and a pressing plate, the plurality of serially connected columns are combined between the upper top seat and the lower base seat in a head-to-tail connection manner and are located at the central positions of the upper top seat and the lower base seat, the platform is fixed on the upper surface of the upper top seat, the piercing tube comprises a flat plate part with a tube body part connected with one end of the tube body part, a through hole penetrates through the tube body part and the flat plate part, the tube body part abuts against the surface of the upper top seat with the opposite end of the flat plate part connected, the flat plate part faces the direction of the impact seat, a plurality of fixing rods with both ends of the flat plate part and the platform respectively, the pressing plate is assembled on the flat plate part, and the object to be tested is clamped by the lower surface of the pressing plate and the upper surface of the flat plate part, the pressing plate is provided with a through hole corresponding to the through hole, so that the punch can puncture and impact the object to be tested through the through hole and the through hole, one end of the plurality of extension rods is fixed on the lower rod seat, the other end of the plurality of extension rods penetrates through the lower base, the upper top seat and penetrates out of the upper surface of the platform, and the plurality of extension rods are distributed at the corner positions of the lower base, the upper top seat and the platform; the clamp group can be accommodated in the built-in groove of the base when not used.
10. The drop-weight impact tester according to claim 1, wherein the transmission mechanism comprises a screw and a driving motor, the driving motor is driven by the control unit to operate and close to drive the screw to rotate and stop, and the rotation of the screw drives the hanging seat of the pulling set to move to the release position and the clamping position.
11. The drop-weight impact tester as claimed in claim 1, wherein the latch plate set has two electromagnetic units, two driving rods, a latch plate stack and a plurality of latch springs, the control unit transmits signals to drive the two electromagnetic units to operate, so that the two electromagnetic units respectively drive the two driving rods, and the two driving rods and the plurality of locking ribs respectively driving the latch plate stack are separated from the plurality of outer annular grooves of the long rod, so that the pulling set is switched from the locking state to the releasing state with respect to the impact set;
the control unit transmits signals to drive the two electromagnetic units to stop operating, the bolt stack plate is pulled to move by the bolt springs, and the plurality of clamping ribs of the bolt stack plate are clamped against the plurality of outer ring grooves of the long rod, so that the bolt plate group is converted from the release state to the locking state.
12. The drop weight impact tester of claim 1, wherein the impact base and the suspension base are respectively provided with a plurality of impact linear bearings and a plurality of pull linear bearings, and the plurality of impact linear bearings and the plurality of pull linear bearings are sleeved on the plurality of slide bars.
13. The falling weight impact tester according to claim 4, further comprising a protective fence configured around the upper rod seat and the lower rod seat and surrounding the operating space; the inner side of the protective fence is provided with a fixing plate, and the fixing plate is used for the reverse loading handle to be reversely buckled and positioned so as to stop using the reverse loading group.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810620162.3A CN110608957A (en) | 2018-06-15 | 2018-06-15 | Falling weight type impact tester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810620162.3A CN110608957A (en) | 2018-06-15 | 2018-06-15 | Falling weight type impact tester |
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| CN110608957A true CN110608957A (en) | 2019-12-24 |
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| CN201810620162.3A Pending CN110608957A (en) | 2018-06-15 | 2018-06-15 | Falling weight type impact tester |
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Cited By (1)
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