CN216410868U

CN216410868U - General fixture of mechanics detection test of bolt

Info

Publication number: CN216410868U
Application number: CN202122133985.3U
Authority: CN
Inventors: 马云飞; 王强
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-04-29
Anticipated expiration: 2031-09-06

Abstract

The utility model discloses a universal clamping mechanism for a mechanical detection test of a bolt, which comprises a bottom plate, wherein a main chute is arranged on the upper end surface of the bottom plate, auxiliary chutes are respectively arranged on the two surfaces of the main chute on the upper end surface of the bottom plate, a bidirectional screw rod is rotatably connected in the main chute, a first conical gear is sleeved on the bidirectional screw rod, main trapezoidal clamping blocks are respectively in threaded connection with the two ends of the bidirectional screw rod, screw rods are rotatably connected on the two sides of the bidirectional screw rod in the auxiliary chutes, one end of each screw rod is in threaded connection with the auxiliary trapezoidal clamping block, a second conical gear is sleeved on one side of the bidirectional screw rod, an asynchronous motor is arranged at the lower end of the bottom plate, a third conical gear is sleeved on the rotating shaft end of the asynchronous motor, and the second conical gear is in meshed connection with the third conical gear. The lead screw is driven to rotate asynchronously through the bidirectional lead screw, and the main trapezoidal clamping block and the auxiliary trapezoidal clamping block are driven to slide in the main sliding groove and the auxiliary sliding groove simultaneously to clamp and fix the bolt, so that the bidirectional lead screw clamping device is suitable for clamping and fixing bolts with different sizes and shapes.

Description

General fixture of mechanics detection test of bolt

Technical Field

The utility model belongs to the technical field of cutting machines, and particularly relates to a universal clamping mechanism for a mechanical detection test of a bolt.

Background

The bolt is a mechanical part, is a cylindrical threaded fastener with a nut, and is a fastener consisting of a head and a screw, wherein the bolt and the nut are connected in a detachable manner, are divided into a common fastener and a hinged hole according to the stress mode of the connection, and are divided into a hexagonal head, a round head, a square head, a countersunk head and the like according to the shape of the head, wherein the hexagonal head is most commonly used.

Hexagonal head bolt commonly used is comparatively general, need carry out bolt tensile force load test to the bolt, mechanical tests such as bolt wedge load test, ensure that the bolt can reach corresponding requirement when using, need carry out the centre gripping to the bolt during test, need carry out the centre gripping to the bolt, the general fixture of mechanical testing test of current bolt, the on-line screen storage device comprises a base, the dynamometry pneumatic cylinder, the connecting rod, ball screw, support frame and centre gripping connecting rod, ball screw drives through the dynamometry pneumatic cylinder and reciprocates, ball screw drives the centre gripping connecting rod rotation when reciprocating, the centre gripping connecting rod drives the grip block through the spring and carries out the centre gripping to the bolt fixed, the dynamometry pneumatic cylinder that has utilized experiment itself has reached the effect of centre gripping, there is the weak point: the clamping mechanism can complete lateral force after clamping and fixing bolts under the condition that the downward pressing distance is equal to the clamping distance, when the bolt lateral force is too small or too large in size, the clamping force of the clamping plate cannot be sufficiently fixed to the bolts, the downward pressing distance of the force measuring hydraulic pressure is too short or too long, effective force measuring results cannot be obtained, the meshing distance of the clamping plate is limited, the clamping angle of the clamping plate cannot be adjusted, different clamping forces exist for bolts of different sizes, effective detection results cannot be obtained for bolt detection of too small or too large in size, and the problem that bolts of different models cannot be detected exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a universal clamping mechanism for a mechanical detection test of bolts, which solves the problem that bolts of different types cannot be detected in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a general fixture of mechanics testing of bolt, includes the bottom plate, the bottom plate up end is equipped with main spout, the bottom plate up end is located main spout both sides all are equipped with vice spout, the main spout internal rotation is connected with two-way lead screw, the cover is equipped with first conical gear on the two-way lead screw, the equal threaded connection in two-way lead screw both ends has main trapezoidal clamp splice, be located in the vice spout two-way lead screw both sides are all rotated and are connected with the lead screw, lead screw one end threaded connection has vice trapezoidal clamp splice, two-way lead screw one side cover is equipped with second conical gear, the bottom plate lower extreme is provided with asynchronous machine, asynchronous machine axis of rotation pot head is equipped with third conical gear, second conical gear with third conical gear meshing is connected.

Preferably, the bottom plate up end both sides all are provided with the bracing piece, be provided with the connecting rod between the upper end of the support bar, the terminal surface both sides all are provided with electric telescopic handle under the connecting rod, the flexible end of electric telescopic handle is provided with the connecting plate, the terminal surface is provided with the detector body under the connecting plate, the connecting plate both sides all are provided with the slider, two the upper end of the support bar inboard all is equipped with the spout, the slider is inserted and is established in the spout.

Preferably, a fixing frame is arranged on the outer side of the asynchronous motor, the upper end of the fixing frame is arranged on the lower end face of the bottom plate, supporting legs are correspondingly arranged on two sides of the lower end face of the bottom plate, and a switch group is arranged on one side of the upper end face of the bottom plate.

Preferably, a through hole is formed in one side of the bottom end face of the main sliding groove, the rotating shaft end of the asynchronous motor is inserted into the through hole, rotating grooves are formed in one sides of the inner walls of the main sliding groove and the auxiliary sliding groove, one ends of the bidirectional screw rod and the screw rod are inserted into the rotating grooves, a fourth bevel gear is sleeved at one end of the screw rod, two sides of the first bevel gear are meshed with the fourth bevel gear and connected with the same, main thread sleeves are sleeved at two ends of the bidirectional screw rod, a main trapezoidal clamping block is arranged at the upper end of the main thread sleeve, an auxiliary thread sleeve is sleeved at one end of the screw rod, the auxiliary trapezoidal clamping block is arranged at the upper end of the auxiliary thread sleeve, and a clamping and placing block is arranged between the main sliding groove and the upper end of the auxiliary sliding groove.

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

1. when a bolt is detected, the bolt head is put downwards at the middle position of the upper end face of a clamping and placing block, a switch group is used for controlling an asynchronous motor to operate to rotate in a forward direction, the asynchronous motor drives a second bevel gear to rotate through a third bevel gear, the second bevel gear drives a bidirectional screw rod to rotate, the bidirectional screw rod drives a main thread sleeve to move inwards on the bidirectional screw rod through a bidirectional thread when rotating, the main thread sleeve drives a main trapezoidal clamping block to move inwards in a main sliding groove, the bidirectional screw rod simultaneously drives second bevel gears on two sides to rotate through the first bevel gear when rotating, the second bevel gears rotate in opposite directions to each other to drive the screw rod to rotate, threads on the screw rod are same-direction threads to drive an auxiliary thread sleeve to move inwards and simultaneously drive an auxiliary trapezoidal clamping block to move inwards, and the bolt is clamped and fixed through mutual extrusion of the main trapezoidal clamping block and the auxiliary trapezoidal clamping block, the asynchronous motor stall is controlled through the switch block after clamping, under the condition that asynchronous motor does not have the operation, main trapezoidal clamp splice and vice trapezoidal clamp splice, can't take place to remove on two-way lead screw and lead screw, thereby avoided when examining the bolt, move to the outside because of main trapezoidal clamp splice and vice trapezoidal clamp splice atress, lead to the not good problem of the fixed effect of centre gripping, slide in main spout and vice spout through main trapezoidal clamp splice of asynchronous motor control and vice trapezoidal clamp splice, thereby reach and fix the bolt, and can be to different model sizes, the bolt of different shapes carries out the centre gripping fixedly.

2. The utility model controls the operation of the electric telescopic rod through the switch group, the telescopic end of the electric telescopic rod drives the connecting plate to move downwards, the connecting plate moves and simultaneously slides in the sliding groove through the sliding block to limit the connecting plate, the connecting plate is prevented from deviating in the downward moving process, the performance of the bolt cannot be detected through the detector body, the connecting plate drives the detector body to move downwards to detect the performance of the bolt, after the detection is finished, the electric telescopic rod is controlled by the switch group to drive the detector body to move upwards, the lower end of the detector body is separated from the bolt, then the asynchronous motor is controlled by the switch group to rotate reversely, the main trapezoidal clamping block and the auxiliary trapezoidal clamping block are driven to move outwards while rotating, the bolt is separated from the clamping of the main trapezoidal clamping block and the auxiliary trapezoidal clamping block, the detected bolt can be taken down, and the asynchronous motor is controlled by the switch group to stop operating, the operation is simple and convenient, and a pile of bolts with different directions can be clamped and fixed.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cutaway schematic view of FIG. 1;

FIG. 3 is a schematic sectional top view B-B of FIG. 1;

fig. 4 is a schematic sectional view taken from above a-a of fig. 1.

In the figure: 1. the device comprises a base plate, 2 main sliding grooves, 3 auxiliary sliding grooves, 4 bidirectional screw rods, 5 first bevel gears, 6 main trapezoidal clamping blocks, 7 lead screws, 8 auxiliary trapezoidal clamping blocks, 9 second bevel gears, 10 asynchronous motors, 11 third bevel gears, 12 supporting rods, 13 connecting rods, 14 electric telescopic rods, 15 connecting plates, 16 detector bodies, 17 sliding blocks, 18 sliding grooves, 19 fixing frames, 20 supporting legs, 21 switch groups, 22 through holes, 23 rotating grooves, 24 fourth bevel gears, 25 main threaded sleeves, 26 auxiliary threaded sleeves and 27 clamping placing blocks.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1, fig. 2, fig. 3, and fig. 4, an embodiment of the present invention provides a universal clamping mechanism for a mechanical test of a bolt, which is characterized in that: the device comprises a bottom plate 1, wherein a main chute 2 is processed on the upper end face of the bottom plate 1, the main chute 2 is of a T-shaped structure, auxiliary chutes 3 are respectively processed on two sides of the main chute 2 on the upper end face of the bottom plate 1, the auxiliary chutes 3 are of the T-shaped structure, a bidirectional screw rod 4 is rotatably connected in the main chute 2, a first bevel gear 5 is sleeved on the bidirectional screw rod 4, main trapezoidal clamping blocks 6 are respectively in threaded connection with two ends of the bidirectional screw rod 4, screw rods 7 are respectively in threaded connection with two sides of the bidirectional screw rod 4 in the auxiliary chutes 3, auxiliary trapezoidal clamping blocks 8 are respectively in threaded connection with two ends of the two screw rods 7, a second bevel gear 9 is sleeved on the right side of the bidirectional screw rod 4, an asynchronous motor 10 is welded at the lower end of the bottom plate 1, the model of the asynchronous motor 10 is YX3-100L1-4, the control end of the asynchronous motor 10 is connected with the output end of a switch group 21 through an electric wire, a third bevel gear 11 is sleeved on the rotating shaft end of the asynchronous motor 10, the second bevel gear 9 is meshed with the third bevel gear 11, supporting rods 12 are welded on two sides of the upper end face of the bottom plate 1, a connecting rod 13 is welded between the upper ends of the supporting rods 12, electric telescopic rods 14 are welded on two sides of the lower end face of the connecting rod 13, a control end of each electric telescopic rod 14 is connected to an output end of the switch group 21 through an electric wire, the model of each electric telescopic rod 14 is DDG10-R-33KN-400MM, a connecting plate 15 is welded on a telescopic end of each electric telescopic rod 14, a detector body 16 is welded on the lower end face of the connecting plate 15, a control end of the detector body 16 is connected to an output end of the switch group 21 through an electric wire, sliding blocks 17 are welded on two sides of the connecting plate 15, sliding grooves 18 are machined on the inner sides of the upper ends of the two supporting rods 12, the sliding blocks 17 are inserted into the sliding grooves 18, a fixing frame 19 is welded on the outer side of the asynchronous motor 10, the upper end of the fixing frame 19 is welded on the lower end face of the bottom plate 1, supporting legs 20 are correspondingly welded on two sides of the lower end face of the bottom plate 1, the welding of bottom plate 1 up end right side has switch group 21, the external power source of connection of electric lines is passed through to switch group 21 input, the processing of 2 bottom end face right sides in main spout has perforation 22, asynchronous machine 10 rotates the axle head and alternates in perforation 22,

main spout

2 and 3 inner wall left sides in vice spout have all been processed and have rotated the groove 23, the left side of two-way lead screw 4 and the two sides outer end of lead screw 7 all insert in rotating the groove 23, the fourth conical gear 24 has all been emboliaed in two lead screw 7 inner, first conical gear 5 both sides all are connected with the meshing of fourth conical gear 24, main thread bush 25 has all been emboliaed at two-way lead screw 4 both ends, main ladder piece 6 welds in main thread bush 25 upper end, the outer end of two lead screws 7 has emboliaed vice thread bush 26 respectively, vice ladder clamp piece 8 welds in vice thread bush 26 upper end, it places the piece 27 to be provided with the centre gripping between main spout 2 and the 3 upper end of vice spout, the centre gripping is placed the piece 27 and is the circular structure.

The working principle of the embodiment is as follows: firstly, when a bolt is detected, the bolt head is downwards placed at the middle position of the upper end face of a clamping and placing block 27, a switch group 21 controls an asynchronous motor 10 to operate and rotate in the forward direction, the asynchronous motor 10 drives a second bevel gear 9 to rotate through a third bevel gear 11, the second bevel gear 9 drives a bidirectional screw rod 4 to rotate, the bidirectional screw rod 4 drives a main threaded sleeve 25 to move inwards on the bidirectional screw rod 4 through bidirectional threads when rotating, the main threaded sleeve 25 drives a main trapezoidal clamping block 6 to move inwards in a main sliding chute 2, the bidirectional screw rod 4 rotates and simultaneously drives the second bevel gears 9 on two sides to rotate through a first bevel gear 5, at the moment, the second bevel gears 9 rotate in opposite directions to each other and drive a screw rod 7 to rotate, threads on the screw rod 7 are same-direction threads to drive an auxiliary threaded sleeve 26 to move inwards and simultaneously drive an auxiliary trapezoidal clamping block 8 to move inwards, carry out the centre gripping through main trapezoidal clamp splice 6 and vice trapezoidal clamp splice 8 mutual extrusion and fix the bolt, through switch block 21 control asynchronous machine 10 stall after pressing from both sides tightly, under the condition that asynchronous machine 10 does not have the operation, main trapezoidal clamp splice 6 and vice trapezoidal clamp splice 8, can't take place to remove on two-way lead screw 4 and lead screw 7, thereby avoided when examining the bolt, because of main trapezoidal clamp splice 6 and vice trapezoidal clamp splice 8 atress move to the outside, lead to the not good problem of centre gripping fixed effect, slide in main spout 2 and vice spout 3 through main trapezoidal clamp splice 6 of asynchronous machine 10 control and vice trapezoidal clamp splice 8, thereby reach and fix the bolt, and can be to different model sizes, the bolt of different shapes carries out the centre gripping fixedly. The operation of the electric telescopic rod 14 is controlled by the switch group 21, the telescopic end of the electric telescopic rod 14 drives the connecting plate 15 to move downwards, the connecting plate 15 moves and slides in the sliding groove 18 through the sliding block 17 to limit the connecting plate 15, so that the connecting plate 15 is prevented from shifting in the downward moving process and performance detection of bolts can not be performed through the detector body 16, the connecting plate 15 drives the detector body 16 to move downwards to perform performance detection of the bolts, after the detection is completed, the switch group 21 controls the electric telescopic rod 14 to drive the detector body 16 to move upwards, the lower end of the detector body 16 is separated from the bolts, then the switch group 21 controls the asynchronous motor 10 to rotate reversely, the main trapezoidal clamping block 6 and the auxiliary trapezoidal clamping block 8 are driven to move outwards while the bolts are separated from the clamping of the main trapezoidal clamping block 6 and the auxiliary trapezoidal clamping block 8, and the detected bolts can be removed at the moment, the asynchronous motor 10 is controlled to stop running through the switch group 21, the operation is simple and convenient, and a pile of bolts with different directions can be clamped and fixed.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. The utility model provides a general fixture of mechanics detection test of bolt which characterized in that: comprises a bottom plate (1), the up end of bottom plate (1) is equipped with main spout (2), the up end of bottom plate (1) is located main spout (2) two sides all is equipped with vice spout (3), main spout (2) internal rotation is connected with two-way lead screw (4), the cover is equipped with first conical gear (5) on two-way lead screw (4), the equal threaded connection in two-way lead screw (4) both ends has main trapezoidal clamp splice (6), be located in vice spout (3) two-way lead screw (4) both sides all rotate and are connected with lead screw (7), lead screw (7) one end threaded connection has vice trapezoidal clamp splice (8), two-way lead screw (4) one side cover is equipped with second conical gear (9), bottom plate (1) lower extreme is provided with asynchronous machine (10), asynchronous machine (10) rotation axle head cover is equipped with third conical gear (11), the second bevel gear (9) is in meshed connection with the third bevel gear (11).

2. The universal clamping mechanism for the mechanical detection test of the bolt according to claim 1, characterized in that: bottom plate (1) up end both sides all are provided with bracing piece (12), be provided with connecting rod (13) between bracing piece (12) upper end, terminal surface both sides all are provided with electric telescopic handle (14) under connecting rod (13), electric telescopic handle (14) flexible end is provided with connecting plate (15), the terminal surface is provided with detector body (16) under connecting plate (15), connecting plate (15) both sides all are provided with slider (17), two bracing piece (12) upper end inboard all is equipped with spout (18), slider (17) are inserted and are established in spout (18).

3. The universal clamping mechanism for the mechanical detection test of the bolt according to claim 1, characterized in that: the asynchronous motor (10) outside is provided with mount (19), mount (19) upper end sets up terminal surface under bottom plate (1), terminal surface both sides correspondence all is provided with supporting leg (20) under bottom plate (1), bottom plate (1) up end one side is provided with switch block (21).

4. The universal clamping mechanism for the mechanical detection test of the bolt according to claim 1, characterized in that: a through hole (22) is arranged on one side of the bottom end surface of the main sliding chute (2), the rotating shaft end of the asynchronous motor (10) is inserted into the through hole (22), one side of the inner wall of each of the main sliding chute (2) and the auxiliary sliding chute (3) is provided with a rotating groove (23), one end of the bidirectional screw rod (4) and one end of the screw rods (7) are inserted in the rotating groove (23), one end of each of the two screw rods (7) is sleeved with a fourth bevel gear (24), both sides of the first conical gear (5) are meshed with the fourth conical gear (24), the two ends of the bidirectional screw rod (4) are respectively sleeved with a main thread sleeve (25), the main trapezoidal clamping block (6) is arranged at the upper end of the main thread sleeve (25), one end of the screw rod (7) is sleeved with an auxiliary thread sleeve (26), the auxiliary trapezoidal clamping block (8) is arranged at the upper end of the auxiliary thread sleeve (26), a clamping and placing block (27) is arranged between the main chute (2) and the upper end of the auxiliary chute (3).