CN218098717U - Screw hardness detector - Google Patents

Abstract

The utility model discloses a screw hardness detector, this screw hardness detector aims at solving screw fixation operating procedure loaded down with trivial details under the prior art, the technical problem of screw detection efficiency has been reduced, this screw hardness detector is including examining test table, it is provided with the screw fixation mould to examine test table top, screw fixation mould top center department is provided with the screw and places the hole, it is provided with the fixture who is used for spacing fixed screw fixation mould to examine the test table outside, it installs L type support to examine test table top rear end, telescopic cylinder is installed at L type support top, the piston rod of telescopic cylinder bottom runs through L type support and fixedly connected with lifter plate, lifter plate bottom center department installs the pneumatic cylinder, the utility model discloses a to wait to detect the screw and put into the screw and place downthehole hardness detection that carries out for this screw hardness detector is when detecting the screw of same specification, it detects screw spare convenient and fast to change, improve detection efficiency greatly.

Description

Screw hardness detector

Technical Field

The utility model relates to a screw hardness detects technical field, specifically is a screw hardness detector.

Background

The screw is a tool for fastening the parts of the object step by utilizing the physical and mathematical principles of the inclined circular rotation and the friction force of the object. Screws are a common term for fasteners, a common spoken word. The screw is indispensable industry requisite in daily life: extremely small screws used for cameras, glasses, clocks, electronics, and the like; general screws for televisions, electric appliances, musical instruments, furniture, and the like; large screws and nuts are used for engineering, buildings and bridges; transportation equipment, airplanes, electric cars, automobiles and the like are used together by using large and small screws. Screws have an important task in industry, and as long as there is industry on earth, the function of screws is of ever-increasing importance. The screw is a common invention in production and life of people for thousands of years, and is the first invention of human according to the application field. After the screw is machined, the quality of the screw needs to be detected, including hardness testing, thread testing and the like.

Through retrieval, the Chinese patent application number: 201921594044.6 discloses a screw hardness detection device, including examining test table, examine test table upper end fixedly connected with fixed block and protection casing, the fixed block up end is equipped with places the case, the fluting has been seted up to the lateral wall of fixed block, be equipped with first clamp splice and second clamp splice in the fluting, second clamp splice fixed connection is on the grooved lateral wall, the one end fixedly connected with horizontal pole of second clamp splice is kept away from to first clamp splice, the horizontal pole is kept away from the one end of first clamp splice and is run through the lateral wall of fixed block and outwards extend, and terminal fixedly connected with pull rod, the first spring of fixedly connected with on the pull rod, the one end fixed connection that the pull rod was kept away from to first spring is on the lateral wall of fixed block, it is equipped with collision mechanism on the test table to examine. The utility model discloses carry out hardness to the screw that has processed and detect, effectively rejected the screw of poor quality, and utilized mechanical automation to replace traditional artifical the measuring, improved detection efficiency.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the horizontal pole makes first clamp splice keep away from the second clamp splice sideslip through handheld pull rod outwards pulling out in the above-mentioned application, put the screw into the fluting, nut department supports the grooved inner wall, the release pull rod again, utilize first spring to pull back the pull rod, utilize first clamp splice and second clamp splice to fix the screw rod department of screw, and then the position of fixed screw, but in screw production manufacturing process, can mass production the screw of same model, the above-mentioned application is waiting to detect the screw at every and is carried out hardness and examine time measuring, all need foretell screw fixation operating procedure to fix, complex operation, greatly reduced screw detection efficiency.

SUMMERY OF THE UTILITY MODEL

(1) Technical problem to be solved

Not enough to prior art, the utility model aims to provide a screw hardness detector, this screw hardness detector aim at solving prior art down the screw fixation operating procedure loaded down with trivial details, reduced screw detection efficiency's technical problem.

(2) Technical scheme

In order to solve the technical problem, the utility model provides a such screw hardness detector, this screw hardness detector is including examining test table, it is provided with the screw fixation mould to examine test table top, screw fixation mould top center department is provided with the screw and places the hole, it is provided with and is used for spacing fixed to examine test table outside the fixture of screw fixation mould, examine test table top rear end and install L type support, telescopic cylinder is installed at L type support top, telescopic cylinder bottom's piston rod runs through L type support and fixedly connected with lifter plate, lifter plate bottom center department installs the pneumatic cylinder, the piston rod fixedly connected with hardness of hydraulic cylinder bottom detects the briquetting, hardness detects the briquetting and is located directly over the screw fixation mould, examine test table one side and install the controller.

When using this technical scheme's screw hardness detector, select earlier the screw fixation mould that accords with the screw that waits to detect, the nut shape and the specification size that wait to detect the screw promptly are waited the hole and are accorded with the screw and are placed, then pass through the screw fixation mould the screw is spacing to be fixed on detecting the platform through fixture, the nut that will wait to detect the screw is put into the screw and is placed downtheholely, the screw that can wait to detect through placing the hole with the screw that matches that waits to detect the screw rigidity, rethread telescopic cylinder orders about the lifter plate to descend to suitable position, orders about hardness through the pneumatic cylinder and detects the hardness of screw that the briquetting descends, the utility model discloses when carrying out the screw rigidity detection of same specification, will detect the screw from the screw and place downthehole taking out, more renew the screw can; when the screw hardness that carries out different specifications detects, only need to change screw fixation mould, select with wait to detect the screw that the nut shape and the specification size of screw accord with place the hole can, then will wait to detect the screw and put into the screw and place downthehole hardness detection that carries on for this screw hardness detector is when detecting the screw of same specification, and the change is waited to detect screw spare convenient and fast, improves detection efficiency greatly.

Preferably, fixture includes first fixed plate, second fixed plate, clamp plate and drive assembly, first fixed plate and second fixed plate fixed mounting be in examine test table top, first fixed plate and second fixed plate one end link to each other and be perpendicular setting, the clamp plate sets up in the one end that first fixed plate was kept away from to the second fixed plate, just the clamp plate is parallel arrangement with first fixed plate, drive assembly is used for ordering about the clamp plate and is close to or keeps away from to first fixed plate direction. Through fixture's setting, arrange the screw fixation mould in between first fixed plate and the clamp plate, then order about the clamp plate through drive assembly and remove to screw fixation mould direction for the clamp plate cooperates first fixed plate to fix the screw fixation mould centre gripping, improves the fixed effect of screw fixation mould, makes the dismouting of the screw fixation mould of being convenient for, improves screw fixation mould and changes efficiency.

Furthermore, a dovetail groove is formed in one side, close to the pressure plate, of the second fixing plate in the length direction, and a dovetail block connected into the dovetail groove in a sliding mode is arranged at one end, close to the second fixing plate, of the pressure plate. Through the arrangement of the dovetail block and the dovetail groove, the pressing plate and the second fixing plate are in sliding connection through the dovetail block and the dovetail groove, the effect of limiting and guiding the pressing plate is achieved, and the moving stability of the pressing plate is guaranteed.

Furthermore, the driving assembly comprises a threaded rod, a bearing seat and a knob, the threaded rod is arranged on one side, away from the first fixing plate, of the pressing plate, one end of the threaded rod is rotatably connected with the pressing plate through a bearing, the knob is fixedly connected to the other end of the threaded rod, a threaded sleeve is sleeved on the outer side of the threaded rod in a threaded manner, and the threaded sleeve is installed on the detection table. Through drive assembly's setting, when fixed or change the screw fixation mould, operating personnel drives the threaded rod through rotating the knob and rotates to through the cooperation of threaded rod and thread bush, be used for adjusting the position of clamp plate, move the clamp plate to the direction of being close to or keeping away from first fixed plate, be used for quick fixation or change the screw fixation mould.

Furthermore, a positioning pin is installed on one side, close to the pressing plate, of the first fixing plate, and a positioning hole for inserting the positioning pin is formed in the screw fixing mold. Through the setting of locating pin and locating hole, when fixed to the screw fixation mould, correspond locating hole and locating pin position on the screw fixation mould, make the locating pin insert in the locating hole through removing the screw fixation mould, fix a position fixedly to the screw fixation mould, guarantee the uniformity of screw fixation mould mounted position at every turn.

Furthermore, the top end of the detection table is positioned at the corresponding position of the screw fixing mold and is embedded with an electromagnet, and the electromagnet is electrically connected with the controller. Through the setting of electro-magnet, when treating the screw and place the screw hole, through controller control electro-magnet circular telegram, the electro-magnet will treat the nut adsorption of screw fixedly, improves the fixed effect of screw.

Furthermore, the edge of lifter plate bottom installs the protection casing, it is provided with the protection pad that corresponds with the protection casing position to examine test table top. Through the setting of protection casing, when examining the detection screw, the protection casing cover is in the outside of fixture and screw fixation mould to effectively avoid examining time measuring screw cracked, the waste residue splashes and hinders people's situation and takes place, improves the security, through the setting of protection pad, when the protection casing descends to target in place, the laminating of protection casing bottom is on the protection pad, avoids the protection casing direct with examine the rigid contact of test table, leads to the protection casing damage.

Compared with the prior art, the beneficial effects of the utility model are that:

the embodiment of the utility model provides an in the screw hardness detector, screw fixation mould and fixture through setting up, examine time measuring to screw hardness, can select and wait to detect the screw fixation mould that the screw accords with, the nut shape and the specification size of waiting to detect the screw promptly place the hole and accord with the screw, then pass through the screw fixation mould and spacing the fixing on examining the test table of fixture, the nut that will wait to detect the screw is put into the screw and is placed downtheholely, it can will wait to detect screw position fixing to place the hole through the screw that accords with the nut that waits to detect the screw, and through controller control electro-magnet circular telegram, the electro-magnet will wait to detect the nut of screw and adsorb fixedly, improve the fixed effect of screw, examine time measuring at the screw hardness that carries out same specification, only need to control the electro-magnet outage through the controller, then the screw that will detect is placed downthehole from the screw and take out, more new screw can again, carry out the screw hardness of different specifications examine time measuring, only need to change the screw fixation mould change, it can to select and to place the hole with the nut shape that waits to detect the screw greatly, then to detect the screw and to put into the screw hardness detection downthehole, it is swift to detect the screw.

Drawings

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

FIG. 2 is a schematic view of a partially disassembled structure of a screw hardness tester of the present invention;

FIG. 3 is a schematic structural view of a clamping mechanism of the screw hardness tester of the present invention;

fig. 4 is a partial sectional view of a cooling device of a cutting machine according to the present invention.

The labels in the figures are: 1. a detection table; 2. a clamping mechanism; 21. a first fixing plate; 22. a second fixing plate; 221. a dovetail groove; 23. pressing a plate; 231. yan Weikuai; 24. a threaded rod; 25. a bearing seat; 26. a knob; 27. positioning pins; 3. a controller; 4. an L-shaped support; 5. a telescopic cylinder; 6. a lifting plate; 7. a protective cover; 8. an electromagnet; 9. fixing the die by screws; 91. screw placing holes; 10. a protective pad; 11. a hydraulic cylinder; 12. and (7) a hardness detection pressing block.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings.

The present embodiment is a screw hardness tester, a schematic structural diagram of which is shown in fig. 1-4, the screw hardness tester includes a testing table 1, a screw fixing mold 9 is disposed on the top of the testing table 1, a screw placing hole 91 is disposed in the center of the top of the screw fixing mold 9, the screw placing hole 91 penetrates through the screw fixing mold 9, in this embodiment, a plurality of screw fixing molds 9 are disposed, a corresponding screw placing hole 91 can be disposed according to the shape and size of a nut to be tested, a clamping mechanism 2 for limiting the screw fixing mold 9 is disposed outside the testing table 1, an L-shaped support 4,L-type support 4 is mounted on the rear end of the top of the testing table 1, a piston rod at the bottom end of the telescopic cylinder 5 penetrates through the L-shaped support 4 and is fixedly connected with a lifting plate 6, a hydraulic cylinder 11 is mounted in the center of the bottom of the lifting plate 6, a hardness testing press block 12 is fixedly connected to the piston rod at the bottom end of the hydraulic cylinder 11, the hardness testing press block 12 is located directly above the screw fixing mold 9, a pressure sensor is disposed on the hardness testing press block 12, a controller 3 is mounted on one side of the testing table 1, and an electromagnet 8 is mounted on the control module, and an electromagnet for displaying data of the control module 3, and displaying the control module 3.

When detecting the screw hardness, the screw fixing die 9 that accords with the screw to be detected is selected earlier, the nut shape and the specification size of the screw to be detected accord with the screw placing hole 91, then the screw fixing die 9 is fixed on the detection platform 1 through the clamping mechanism 2 in a limiting manner, the nut of the screw to be detected is placed in the screw placing hole 91, the screw position to be detected can be fixed through the screw placing hole 91 that accords with the nut of the screw to be detected, the electromagnet 8 is controlled to be electrified through the controller 3, the electromagnet 8 adsorbs and fixes the nut of the screw to be detected, the fixing effect of the screw is improved, the screw is ensured to be in a vertical state during detection, the lifting plate 6 is driven to descend to a proper position through the telescopic cylinder 5, the hardness detection pressing block 12 is driven to descend through the hydraulic cylinder 11 to detect the hardness of the screw, the utility model discloses when detecting the screw hardness of the same specification, only need to control the electromagnet 8 to be powered off through the controller 3, then the screw that has detected is taken out from placing hole 91, and a new screw can be replaced; when the screw hardness that carries out different specifications detects, only need to change screw fixation mould 9, the selection with wait to detect the screw that the nut shape and the specification size of screw accord with place the hole 91 can, then will wait to detect the screw and put into the screw and place the hole 91 in and carry out the hardness detection for this screw hardness detector is when detecting the screw of same specification, and the change is waited to detect screw spare convenient and fast, improves detection efficiency greatly.

It should be noted that, as shown in fig. 1, fig. 2 and fig. 3, the clamping mechanism 2 includes a first fixing plate 21, a second fixing plate 22, a pressing plate 23 and a driving assembly, the first fixing plate 21 and the second fixing plate 22 are fixedly installed on the top of the detection table 1, one ends of the first fixing plate 21 and the second fixing plate 22 are connected and vertically disposed, the pressing plate 23 is disposed at one end of the second fixing plate 22 far away from the first fixing plate 21, the pressing plate 23 and the first fixing plate 21 are disposed in parallel, the driving assembly is configured to drive the pressing plate 23 to be close to or far away from the first fixing plate 21, a positioning pin 27 is installed at one side of the first fixing plate 21 close to the pressing plate 23, and a positioning hole for inserting the positioning pin 27 is disposed on the screw fixing mold 9.

When fixing the fixed mould 9 of screw, arrange the fixed mould 9 of screw in between first fixed plate 21 and clamp plate 23 earlier, correspond locating hole and locating pin 27 position on the fixed mould 9 of screw, make locating pin 27 insert the locating hole through removing the fixed mould 9 of screw, fix a position fixedly to the fixed mould 9 of screw, guarantee the uniformity of the fixed mould 9 mounted position of screw at every turn, then order about clamp plate 23 through drive assembly and remove to the fixed mould 9 direction of screw, make clamp plate 23 cooperate first fixed plate 21 to fix the fixed mould 9 centre gripping of screw fixed mould, improve the fixed effect of fixed mould 9 of screw.

As shown in fig. 3, the driving assembly includes a threaded rod 24, a bearing seat 25 and a knob 26, the threaded rod 24 is disposed on one side of the pressing plate 23 far away from the first fixing plate 21, one end of the threaded rod 24 is rotatably connected with the pressing plate 23 through a bearing, the other end of the threaded rod 24 is fixedly connected with the knob 26, a threaded sleeve 25 is sleeved on the outer side of the threaded rod 24 in a threaded manner, and the threaded sleeve 25 is mounted on the detection table 1;

furthermore, a dovetail groove 221 is provided in the longitudinal direction on the side of the second fixing plate 22 close to the pressure plate 23, a dovetail block 231 slidably coupled in the dovetail groove 221 is provided at one end of the pressure plate 23 close to the second fixing plate 22, and the pressure plate 23 and the second fixing plate 22 are slidably coupled via the dovetail block 231 and the dovetail groove 221.

When fixing or changing screw fixation mould 9, operating personnel drives threaded rod 24 through rotating knob 26 and rotates, and through the cooperation of threaded rod 24 with thread bush 25, a position for adjusting clamp plate 23, and through dovetail 231 and dovetail 221 sliding connection between clamp plate 23 and the second fixed plate 22, play spacing effect of leading to clamp plate 23, guarantee the stability that clamp plate 23 removed, move clamp plate 23 to the direction of being close to or keeping away from first fixed plate 21, when fixing screw fixation mould 9, clamp plate 23 removes to being close to first fixed plate 21 direction, it is fixed with the centre gripping of fixed mould 9, when changing screw fixation mould 9, clamp plate 23 removes to keeping away from first fixed plate 21 direction, be convenient for take out screw fixation mould 9 and change, make the dismouting of screw fixation mould 9 convenient, improve the change efficiency of screw fixation mould 9.

It should be noted that, as shown in fig. 1, fig. 2 and fig. 4, a protective cover 7 is installed at an edge of the bottom end of the lifting plate 6, the hydraulic cylinder 11 and the hardness detection press block 12 are disposed in the protective cover 7, in this embodiment, the protective cover 7 is preferably made of transparent tempered glass with a rectangular hollow structure, when a detection screw is detected, the lifting plate 6 is driven to descend by the telescopic cylinder 5, so that the protective cover 7 descends along with the lifting plate 6, after the protective cover 7 descends in place, the protective cover 7 covers the outer sides of the clamping mechanism 2 and the screw fixing mold 9, thereby effectively avoiding the situation that the screw is broken during detection, and the waste residue splashes to hurt a person, thereby improving safety, a protective pad 10 corresponding to the protective cover 7 is disposed at the top end of the detection table 1, in this embodiment, the protective pad 10 is preferably made of sponge or rubber, the clamping mechanism 2 and the screw fixing mold 9 are disposed inside the protective pad 10, when the protective cover 7 descends in place, the bottom end of the protective cover 7 is attached to the protective cover 10, thereby avoiding the protective cover 7 directly contacting with the detection table 1 and causing damage to the detection table 7.

The working principle is as follows: when the hardness of the screw is detected, the screw fixing mold 9 which is consistent with the screw to be detected is selected firstly, namely, the shape and the specification size of the screw cap of the screw to be detected are consistent with the screw placing hole 91, then the screw fixing mold 9 is arranged between the first fixing plate 21 and the pressing plate 23, the positioning hole on the screw fixing mold 9 corresponds to the positioning pin 27, the positioning pin 27 is inserted into the positioning hole by moving the screw fixing mold 9, the screw fixing mold 9 is positioned and fixed, then the threaded rod 24 is driven to rotate by rotating the knob 26, and the position of the pressing plate 23 is adjusted by matching the threaded rod 24 with the threaded sleeve 25, the pressing plate 23 is moved towards the direction close to the first fixing plate 21, the fixing mold 9 is clamped and fixed, the screw fixing mold 9 is limited and fixed on the detection platform 1, the screw cap of the screw to be detected is placed in the screw placing hole 91, the screw to be detected can be fixed through the screw placing hole 91 matched with the screw cap of the screw to be detected, the electromagnet 8 is controlled to be electrified through the controller 3, the electromagnet 8 adsorbs and fixes the screw cap of the screw to be detected, the fixing effect of the screw is improved, the screw is ensured to be in a vertical state during detection, the lifting plate 6 is driven to descend through the telescopic air cylinder 5, the protective cover 7 descends along with the lifting plate 6, after the protective cover 7 descends in place, the protective cover 7 covers the outer sides of the clamping mechanism 2 and the screw fixing die 9, then the hardness detection pressing block 12 is driven to descend through the hydraulic cylinder 11 to detect the hardness of the screw, meanwhile, the protective cover 7 effectively avoids detecting broken screws, the situation that waste residues splash and hurt people occurs, the safety is improved, when the hardness detection of the screws of the same specification is carried out, only the controller 3 is needed to control the electromagnet 8 to be powered off, then, the detected screws are taken out of the screw placing holes 91, and new screws are replaced; when carrying out the screw hardness of different specifications and examining time measuring, only need drive threaded rod 24 through reverse rotation knob 26 and rotate, move clamp plate 23 to keeping away from 21 directions of first fixed plate, thereby be convenient for screw fixation mould 9 to take out, change screw fixation mould 9, the screw that hole 91 was placed to the screw of selecting and treating the nut shape of treating the screw and the screw that the specification size accords with, and through foretell screw fixation mould 9 fixed mode with new screw fixation mould 9 spacing fixed can, then will treat that the screw is put into the screw and place the hole 91 and carry out the hardness detection, make this screw hardness detector when the screw of detecting same specification, it treats screw spare convenient and fast to change, the detection efficiency is greatly improved.

All the technical features in the embodiment can be freely combined according to actual needs.

The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.

Claims (7)

1. The utility model provides a screw hardness detector, is including examining test table (1), its characterized in that, it is provided with screw fixation mould (9) to examine test table (1) top, screw fixation mould (9) top center department is provided with the screw and places hole (91), it is provided with and is used for spacing fixed to examine test table (1) outside fixture (2) of screw fixation mould (9), it installs L type support (4) to examine test table (1) top rear end, telescopic cylinder (5) are installed at L type support (4) top, the piston rod of telescopic cylinder (5) bottom runs through L type support (4) and fixedly connected with lifter plate (6), lifter plate (6) bottom center department installs pneumatic cylinder (11), the piston rod fixedly connected with hardness of pneumatic cylinder (11) bottom detects briquetting (12), hardness detects briquetting (12) and is located directly over screw fixation mould (9), examine test table (1) one side and install controller (3).

2. The screw hardness detector according to claim 1, wherein the clamping mechanism (2) comprises a first fixing plate (21), a second fixing plate (22), a pressing plate (23) and a driving assembly, the first fixing plate (21) and the second fixing plate (22) are fixedly installed at the top of the detection table (1), one ends of the first fixing plate (21) and the second fixing plate (22) are connected and vertically arranged, the pressing plate (23) is arranged at one end, far away from the first fixing plate (21), of the second fixing plate (22), the pressing plate (23) and the first fixing plate (21) are arranged in parallel, and the driving assembly is used for driving the pressing plate (23) to be close to or far away from the first fixing plate (21) in the direction.

3. The screw hardness tester according to claim 2, wherein a dovetail groove (221) is formed in one side of the second fixing plate (22) close to the pressure plate (23) along the length direction, and a Yan Weikuai (231) slidably connected in the dovetail groove (221) is arranged at one end of the pressure plate (23) close to the second fixing plate (22).

4. The screw hardness detector according to claim 2, characterized in that the driving component comprises a threaded rod (24), a threaded sleeve (25) and a knob (26), the threaded rod (24) is arranged on one side of the pressing plate (23) far away from the first fixing plate (21), one end of the threaded rod (24) is rotatably connected with the pressing plate (23) through a bearing, the knob (26) is fixedly connected to the other end of the threaded rod (24), the threaded sleeve (25) is sleeved on the outer side of the threaded rod (24) in a threaded manner, and the threaded sleeve (25) is installed on the detection table (1).

5. The screw hardness tester according to claim 2, wherein a positioning pin (27) is installed on one side of the first fixing plate (21) close to the pressing plate (23), and a positioning hole for inserting the positioning pin (27) is formed in the screw fixing mold (9).

6. The screw hardness detector according to claim 1, wherein an electromagnet (8) is embedded in a position, corresponding to the screw fixing mold (9), at the top end of the detection table (1), and the electromagnet (8) is electrically connected with the controller (3).

7. The screw hardness detector according to claim 1, wherein a protective cover (7) is installed at the edge of the bottom end of the lifting plate (6), and a protective pad (10) corresponding to the protective cover (7) in position is arranged at the top end of the detection table (1).

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