CN217688222U

CN217688222U - Clamping device for fatigue damage test of metal material

Info

Publication number: CN217688222U
Application number: CN202123457390.XU
Authority: CN
Inventors: 刘婷; 吴燕瑞
Original assignee: Zhongshan Torch Polytechnic
Current assignee: Zhongshan Torch Polytechnic
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-10-28
Anticipated expiration: 2031-12-09

Abstract

The utility model discloses a clamping device for metal material fatigue damage test, comprises a workbench, the workstation on be equipped with the centre gripping subassembly and establish the spacing subassembly on centre gripping subassembly right side, spacing subassembly have and be used for leaning on the bottom limit face and the right side limit face of awaiting measuring bottom surface and right flank respectively, the centre gripping subassembly compress tightly a and roof pressure chucking spare including a left side, the workstation on be equipped with and promote a left side and compress tightly the piece and press the drive assembly that awaits measuring left surface promoted the roof pressure chucking spare afterwards and press the piece top surface of awaiting measuring, the utility model aims at overcoming the not enough of prior art, provide a clamping device for metal material fatigue damage test that the centre gripping is stable, simple operation, strong adaptability.

Description

Clamping device for fatigue damage test of metal material

[ technical field ] A method for producing a semiconductor device

The utility model relates to a clamping device for metal material fatigue damage test.

[ background of the invention ]

The metal material fatigue refers to a process that a metal material and a metal component gradually generate local permanent accumulated damage at one or more positions under the action of cyclic stress or cyclic strain, and crack or complete fracture suddenly occurs after a certain number of cycles. When doing the metal material fatigue damage test, owing to lack the centre gripping to the metal piece that awaits measuring to when carrying out the fatigue damage test, the metal piece that awaits measuring moves easily, and then influences the accuracy of testing result, the shape variation in size of the different piece that awaits measuring in addition, traditional anchor clamps that are used for manufacturing are difficult to adapt to, and this is the important problem that remains to be solved among the metal material fatigue damage test experimentation.

The utility model discloses just produce based on foretell not enough.

[ Utility model ] content

The utility model aims at overcoming the not enough of prior art, provide a clamping device for metal material fatigue damage test that the centre gripping is stable, simple operation, strong adaptability.

The utility model is realized through the following technical scheme:

the utility model provides a clamping device for metal material fatigue damage test, including the workstation, the workstation on be equipped with the centre gripping subassembly and establish the spacing subassembly on centre gripping subassembly right side, spacing subassembly have and be used for leaning on the bottom limit face and the right flank that await measuring and lean on respectively, the centre gripping subassembly compress tightly piece and roof pressure chucking spare including a left side, the workstation on be equipped with and promote a left side and compress tightly the piece and press and to await measuring a left surface and promote the roof pressure chucking spare afterwards and press the drive assembly of a top surface that awaits measuring.

In detail, a clamping device for metal material fatigue damage test, the centre gripping subassembly including rotate connect on the workstation and pendulum rod that can the horizontal hunting, pendulum rod middle part cover be equipped with its gliding sliding sleeve relatively, pendulum rod and sliding sleeve between be equipped with and be connected the two elastic component and make the sliding sleeve keep at the pendulum rod middle part, the drive assembly output connect and can promote the pendulum rod swing right on the sliding sleeve, a left side compress tightly the piece and connect on the pendulum rod, roof pressure chucking spare middle part rotate and connect on pendulum rod upper portion, roof pressure chucking spare left part rotate and be connected with the connecting rod, connecting rod upper portion connect the roof pressure chucking spare and the lower part rotates and connects on the sliding sleeve.

In detail, the driving assembly comprises a hydraulic cylinder arranged on the left side of the swing rod, the hydraulic cylinder is fixedly arranged on the workbench, and the output end of the hydraulic cylinder is rotatably connected to the sliding sleeve.

According to the clamping device for the fatigue damage test of the metal material, the workbench is provided with the adjusting component for adjusting the height of the clamping component.

Preferably, the workbench is provided with at least two guide pillars, the limiting assembly is sleeved on the guide pillars and can slide up and down, the adjusting assembly comprises a rotating rod rotatably connected to the workbench, the rotating rod is provided with a turbine coaxial with the rotating rod and an eccentric wheel eccentrically arranged, the bottom of the limiting assembly abuts against the eccentric wheel, the workbench is rotatably connected with an adjusting rod capable of rotating, the middle of the adjusting rod is provided with a worm meshed with the turbine, and the end part of the adjusting rod is provided with a holding part for holding the rotating hand.

According to the clamping device for the fatigue damage test of the metal material, the right part of the left pressing piece is provided with the first arc-shaped curved surface which is used for abutting against the piece to be tested, and the lower side of the right part of the pressing piece is provided with the second arc-shaped curved surface which is used for abutting against the first arc-shaped curved surface of the piece to be tested.

The clamping device for the fatigue damage test of the metal material is characterized in that the swing rod is provided with a limiting block, the elastic part is a spring sleeved on the swing rod, and one end of the spring is connected with the limiting block while the other end of the spring is connected with the sliding sleeve.

According to the clamping device for the fatigue damage test of the metal material, the number of the clamping assemblies is two, and the sliding sleeves of the two clamping assemblies are rotatably connected to the output end of the hydraulic cylinder.

In detail, the clamping device for the fatigue damage test of the metal material, the limiting assembly comprises a horizontally-placed limiting table, at least two vertically-placed limiting columns are arranged on the limiting table, the upper side face of the limiting table forms the bottom limiting face, and the left side faces of all the limiting columns jointly form the right limiting face.

Preferably, the clamping device for the fatigue damage test of the metal material is characterized in that a box cover used for covering the clamping component and the limiting component is detachably connected to the upper side of the workbench, a box door is arranged on the side face of the box cover, and a handle is arranged on the box door.

Compared with the prior art, the utility model has the following advantages:

1. the utility model discloses when using, drive assembly promotes the pendulum rod swing right earlier, this moment because elastic component effect sliding sleeve keeps in pendulum rod middle part position, a left side compresses tightly a left side and moves right and support and lean on the left side at the piece that awaits measuring, then under drive assembly's thrust effect, promote the relative pendulum rod endwise slip of sliding sleeve, and then compress or tensile elastic component, sliding sleeve slip promotion connecting rod then promotes the rotation of roof pressure chucking spare this moment, the top surface at the piece that awaits measuring is pressed to roof pressure chucking spare right end top, drive assembly's at last drive assembly's drive power is whole to be used for the left surface and the top surface of roof pressure piece that awaits measuring, like this because a left side compresses tightly the piece and supports the left surface at the piece that awaits measuring with less power earlier, support at last roof pressure chucking spare and lean on after leaning on the piece, a left side compresses tightly piece and roof pressure chucking spare simultaneously with great power and presses the piece that awaits measuring, like this two faces of piece that awaits measuring in-holding in-process guarantee the piece that awaits measuring are all accurate location, and the packing force that two faces that receives is comparatively even, the stability of clamping is improved clamping, whole clamping device simple structure, the simple operation, high efficiency.

2. The utility model discloses a spacing subassembly bottom supports and leans on the eccentric wheel, through the rotating portion of gripping, again through turbine and worm transmission, the dwang drives the eccentric wheel and rotates, and the eccentric wheel rotates and makes spacing subassembly oscilaltion, can make adjusting part can finely adjust the range that spacing subassembly goes up and down through turbine and worm transmission, and the convenience carries out the centre gripping to the piece that awaits measuring of equidimension not, has improved the suitability of clamping device for the application occasion of clamping device is more extensive, has improved work efficiency.

[ description of the drawings ]

Fig. 1 is a schematic perspective view of a clamping device of the present invention;

fig. 2 is a schematic sectional view of the clamping device of the present invention;

fig. 3 is a partially enlarged view at B of fig. 2;

fig. 4 is a schematic structural view of the limiting assembly and the guide pillar of the present invention;

fig. 5 is a partially enlarged view at C of fig. 2.

[ detailed description ] embodiments

The utility model will be further described with reference to the accompanying drawings:

the orientations described in the specification, such as "upper", "lower", "left", "right", "front", "back", and the like, are based on the orientation of the drawings, and are intended to describe relationships between respective components, and do not indicate unique or absolute positional relationships between respective components, and are only one embodiment of the present invention, and are not limited to the embodiment thereof.

As shown in fig. 2, a clamping device for metal material fatigue damage test, including workstation 1, workstation 1 on be equipped with clamping component 2 and establish the spacing subassembly 3 on clamping component 2 right side, spacing subassembly 3 bottom spacing face 31 and the right spacing face 32 that is used for leaning on a bottom surface and the right flank that awaits measuring respectively have, clamping component 2 including a left side compress tightly piece 21 and top pressure piece 22, workstation 1 on be equipped with and promote a left side compress tightly piece 21 and press and to promote top pressure piece 22 and press the drive assembly 4 that awaits measuring a top surface is pressed to a piece a left side that awaits measuring subsequently.

In detail, as shown in fig. 2 and 3, the clamping assembly 2 includes a swing rod 23 rotatably connected to the worktable 1 and capable of swinging left and right, a sliding sleeve 24 capable of sliding relative to the swing rod 23 is sleeved in the middle of the swing rod 23, an elastic member 25 for connecting the swing rod 23 and the sliding sleeve 24 is disposed between the swing rod 23 and the sliding sleeve 24 so that the sliding sleeve 24 is held in the middle of the swing rod 23, the output end of the driving assembly 4 is connected to the sliding sleeve 24 and capable of pushing the swing rod 23 to swing right, the left pressing member 21 is connected to the swing rod 23, the middle of the pressing member 22 is rotatably connected to the upper portion of the swing rod 23, the left portion of the pressing member 22 is rotatably connected to a connecting rod 26, the upper portion of the connecting rod 26 is connected to the pressing member 22 and the lower portion is rotatably connected to the sliding sleeve 24, when in use, the driving assembly 4 first pushes the swing rod 23 to swing right, at this time, the sliding sleeve 24 is held in the middle of the swing rod 23 by the elastic member 25, the left pressing piece 21 moves rightwards until abutting against the left side of the piece A to be detected, then under the thrust action of the driving assembly 4, the sliding sleeve 24 is pushed to axially slide relative to the swing rod 23, the elastic piece 25 is further compressed or stretched, at the moment, the sliding sleeve 24 slides to push the connecting rod 26 and further push the abutting piece 22 to rotate, the right end of the abutting piece 22 abuts against the top surface of the piece A to be detected, and finally the driving force of the driving assembly 4 is completely used for abutting against the left side surface and the top surface of the piece A to be detected, so that the left pressing piece 21 abuts against the left side surface of the piece A to be detected with smaller force, after the abutting piece 22 abuts against the piece A to be detected, the left pressing piece 21 and the abutting piece 22 simultaneously press against the piece A to be detected with larger force, and therefore, in the clamping process of the piece to be detected, two surfaces of the piece to be detected are accurately positioned, and the pressing forces on the two surfaces are more uniform, the stability of clamping is improved, whole clamping device simple structure, simple operation improve clamping efficiency.

Preferably, as shown in fig. 2 and 3, the driving assembly 4 includes a hydraulic cylinder 41 disposed on the left side of the swing link 23, the swing link 23 is made to swing to the right by the thrust of the output end of the hydraulic cylinder 41, and the hydraulic cylinder 41 may be disposed below the left side of the swing link 23, so that the hydraulic cylinder 41 pushes the sliding sleeve 24 from left to right in an upward direction, so that the hydraulic cylinder 41 can push the sliding sleeve 24 to slide upward; certainly, the hydraulic cylinder 41 can also be arranged above the right side of the swing rod 23, the swing rod 23 is pulled by the pulling force of the hydraulic cylinder 41 to swing to the right, and then the hydraulic cylinder 41 tends to pull the sliding sleeve 24 from left to right; in addition, the driving assembly 4 may be a linear motor instead of the hydraulic cylinder 41, which is an alternative to the conventional technical means that can be adopted by those skilled in the art.

In order to adapt to metal pieces with different sizes, as shown in fig. 2, an adjusting assembly 5 for adjusting the height of the clamping assembly 2 is arranged on the workbench 1.

In detail, as shown in fig. 2, 4 and 5, at least two guide posts 11 are arranged on the workbench 1, the limiting component 3 is sleeved on the guide posts 11 and can slide up and down, the adjusting component 5 comprises a rotating rod 51 rotatably connected to the workbench 1, the rotating rod 51 is provided with a turbine 52 coaxial with the rotating rod and an eccentric wheel 53 eccentrically arranged, the bottom of the limiting component 3 abuts against the eccentric wheel 53, the workbench 1 is rotatably connected with an adjusting rod 54 capable of rotating, the middle part of the adjusting rod 54 is provided with a worm 55 meshed with the turbine 52, the end part of the adjusting rod 54 is provided with a holding part 56 for a hand to hold the rotating, the holding part 56 is rotated, the turbine 52 and the worm 55 are driven by the rotating rod 51 to drive the eccentric wheel 53 to rotate, the limiting component 3 to move up and down, the adjusting component 5 can finely adjust the lifting range of the limiting component 3 by the transmission of the turbine 52 and the worm 55, clamping devices with different sizes can be clamped conveniently, the applicability of the clamping device is improved, the application occasion of the clamping device is wider, and the working efficiency is improved.

Preferably, as shown in fig. 2 and fig. 3, the right portion of the left pressing member 21 is provided with a first arc-shaped curved surface 211 for abutting against the object a to be tested, and the lower side of the right portion of the pressing member 22 is provided with a second arc-shaped curved surface 221 for abutting against the first arc-shaped curved surface 211 of the object a to be tested, so as to avoid damaging the object a to be tested due to clamping and further avoiding affecting the accuracy of the test result.

As a preferable scheme, as shown in fig. 3, the swing rod 23 is provided with a limit block 231, the elastic element 25 is a spring sleeved on the swing rod 23, one end of the spring is connected to the limit block 231, and the other end of the spring is connected to the sliding sleeve 24, although the elastic element 25 may also be a gas spring, an elastic tension spring, or the like. In addition, the upper end of the spring can abut against the lower end of the limiting block 231 to abut against the sliding sleeve 24, and the sliding sleeve 24 is pushed to slide downwards by the thrust of the spring; the spring can also be connected with the sliding sleeve 24 at the upper end and the limiting block 231 at the lower end, and only the limiting block 231 is required to be arranged below the sliding sleeve 24, which are all replacements of conventional technical means that can be adopted by the ordinary technical personnel in the technical field.

In order to further improve the stability of centre gripping, centre gripping subassembly 2 be provided with two side by side, the equal swivelling joint of sliding sleeve 24 of two centre gripping subassemblies 2 is at the output of pneumatic cylinder 41, in detail, the sliding sleeve 24 of two centre gripping subassemblies 2 is connected through a connecting rod, the output swivelling joint of pneumatic cylinder 41 can on the connecting rod.

More specifically, as shown in fig. 4, the limiting component 3 includes a flat limiting table 33, the limiting table 33 is provided with at least two vertically-arranged limiting columns 34, the upper side surface of the limiting table 33 forms the bottom limiting surface 31, the left side surfaces of all the limiting columns 34 jointly form the right limiting surface 32, the limiting columns 34 can be square columns, the left side surfaces of the square columns jointly form the right limiting surface 32, of course, the limiting columns 34 can also be cylinders, and the plane where the lines of the cylinders and the piece to be measured a contact form the right limiting surface 32.

Preferably, as shown in fig. 1, the upper side of the workbench 1 is detachably connected with a box cover 6 for covering the clamping component 2 and the limiting component 3, a box door 61 is arranged on the side surface of the box cover 6, and a handle 62 is arranged on the box door 61, so that a to-be-detected piece can be conveniently put in and taken out.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be defined by the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a clamping device for metal material fatigue damage test which characterized in that: including workstation (1), workstation (1) on be equipped with centre gripping subassembly (2) and establish spacing subassembly (3) on centre gripping subassembly (2) right side, spacing subassembly (3) have and be used for leaning on bottom spacing face (31) and the right flank (32) of awaiting measuring (A) bottom surface and right flank respectively, centre gripping subassembly (2) including a left side compress tightly piece (21) and roof pressure retaining member (22), workstation (1) on be equipped with and promote a left side to compress tightly piece (21) and press and to await measuring a driving component (4) that await measuring (A) top surface promotes roof pressure retaining member (22) afterwards to compress against awaiting measuring (A) left surface.

2. The clamping device for the fatigue damage test of the metal material as recited in claim 1, wherein: centre gripping subassembly (2) including rotate link connection on workstation (1) and pendulum rod (23) that can the horizontal hunting, pendulum rod (23) middle part cover be equipped with its gliding sliding sleeve (24) relatively, pendulum rod (23) and sliding sleeve (24) between be equipped with elastic component (25) of being connected the two and make sliding sleeve (24) keep at pendulum rod (23) middle part, drive assembly (4) output connect on sliding sleeve (24) and can promote pendulum rod (23) swing right, a left side compress tightly piece (21) and connect on pendulum rod (23), roof pressure retaining piece (22) middle part rotate to be connected on pendulum rod (23) upper portion, roof pressure retaining piece (22) left part rotate and be connected with connecting rod (26), connecting rod (26) upper portion connect roof pressure retaining piece (22) and the lower part rotates to be connected on sliding sleeve (24).

3. The clamping device for the fatigue damage test of the metal material as recited in claim 2, wherein: the driving assembly (4) comprises a hydraulic cylinder (41) arranged on the left side of the swing rod (23), the hydraulic cylinder (41) is fixedly installed on the workbench (1) and the output end of the hydraulic cylinder is rotatably connected to the sliding sleeve (24).

4. The clamping device for the fatigue damage test of the metal material according to any one of claims 1 to 3, wherein: the workbench (1) is provided with an adjusting component (5) for adjusting the height of the clamping component (2).

5. The clamping device for the fatigue damage test of the metal material as recited in claim 4, wherein: workstation (1) on be equipped with two piece at least guide pillars (11), spacing subassembly (3) cover establish on guide pillar (11) and can slide from top to bottom, adjusting part (5) including rotating pole (51) of connection on workstation (1) rotate, dwang (51) on be equipped with rather than coaxial turbine (52) and eccentric wheel (53) of eccentric settings, spacing subassembly (3) bottom support and lean on eccentric wheel (53), workstation (1) rotate and be connected with can pivoted regulation pole (54), regulation pole (54) middle part be equipped with worm (55) with turbine (52) meshing, regulation pole (54) tip be equipped with and supply the staff to grip pivoted portion of gripping (56).

6. The clamping device for the fatigue damage test of the metal material according to any one of claims 1 to 3, wherein: the right part that compresses tightly piece (21) on a left side be equipped with and be used for the top to lean on first arc curved surface (211) of awaiting measuring piece (A), the right part lower side of top pressure piece (22) be equipped with and be used for the top to lean on second arc curved surface (221) of the first arc curved surface (211) of awaiting measuring piece (A).

7. The clamping device for the fatigue damage test of the metal material as recited in claim 2, wherein: the swing rod (23) is provided with a limiting block (231), the elastic piece (25) is a spring sleeved on the swing rod (23), and one end of the spring is connected with the limiting block (231) while the other end is connected with the sliding sleeve (24).

8. The clamping device for the fatigue damage test of the metal material as recited in claim 3, wherein: the clamping assemblies (2) are provided with two clamping assemblies, and sliding sleeves (24) of the two clamping assemblies (2) are connected to the output end of the hydraulic cylinder (41) in a rotating mode.

9. The clamping device for the fatigue damage test of the metal material as recited in claim 1, wherein: spacing subassembly (3) including the spacing platform (33) of keeping flat, spacing platform (33) on be equipped with two at least spacing posts (34) of putting immediately, the side of going up of spacing platform (33) constitutes end spacing face (31), all the left surface of spacing post (34) constitute jointly right spacing face (32).

10. The clamping device for the fatigue damage test of the metal material as recited in claim 1, wherein: workstation (1) go up survey can dismantle and be connected with case lid (6) that are used for covering centre gripping subassembly (2) and spacing subassembly (3), case lid (6) side be equipped with chamber door (61), chamber door (61) on be equipped with handle (62).