CN219729757U - Outer mechanism and visual detection device that presss from both sides - Google Patents

Abstract

The utility model provides an external clamping mechanism and a visual detection device, wherein the external clamping mechanism comprises a first connecting piece, a second connecting piece and a base, at least two clamping jaws are respectively arranged on the first connecting piece and the second connecting piece, the first connecting piece and the second connecting piece are movably connected with the base, and the first connecting piece and the second connecting piece can move on the base in opposite directions and are used for driving the clamping jaws to clamp an object to be detected. At least two clamping jaws are respectively arranged on the first connecting piece and the second connecting piece, and the first connecting piece and the second connecting piece are movably connected with the base, so that the first connecting piece and the second connecting piece can move on the base in opposite directions and clamp an object to be detected through the clamping jaws on the first connecting piece and the second connecting piece, the object to be detected can be limited in two directions, shaking of the object to be detected in the clamping process is avoided, and the stability of clamping operation is improved; meanwhile, the outer clamping mechanism has simple structure, small volume and lower manufacturing cost, and is favorable for popularization and application.

Description

Outer mechanism and visual detection device that presss from both sides

Technical Field

The utility model belongs to the technical field of visual detection mechanisms, and particularly relates to an external clamping mechanism and a visual detection device.

Background

The visual detection is to replace human eyes with machine vision products to measure and judge objects to be detected, the common machine vision products comprise an image pickup device and the like, the picked objects are converted into image signals through the image pickup device and are transmitted to a special image processing system, the image signals are converted into digital signals according to information such as pixel distribution, brightness and color, and then the image processing system performs various operations according to the signals to extract characteristics of the objects, and further the on-site equipment actions are controlled according to the judging results. In the mass industrial production process, the quality and the efficiency of the product detected by the artificial vision are low and the precision is not high, and the production efficiency and the automation degree of production can be greatly improved by using the machine vision detection method.

In order to improve the carrying efficiency, the machine carrying is generally adopted to replace manual operation, and the conventional carrying mechanism is unstable in clamping action, so that the object to be detected is easy to be incapable of being successfully delivered and transported, further the detection efficiency and the accuracy are reduced, the production and detection cost is increased, and the popularization and the use are inconvenient.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is to provide the external clamping mechanism and the visual detection device, wherein the external clamping mechanism drives the clamping jaw to move to clamp the object to be detected by arranging the first connecting piece and the second connecting piece, so that the stability of the clamping action is improved, and the accuracy of the detection result is further improved.

In order to solve the problems, the utility model provides an external clamping mechanism, which comprises a first connecting piece, a second connecting piece and a base, wherein at least two clamping jaws are respectively arranged on the first connecting piece and the second connecting piece, the clamping jaws on the first connecting piece and the second connecting piece are arranged in a staggered manner in the moving direction of the first connecting piece and the second connecting piece, the first connecting piece and the second connecting piece are movably connected with the base, and the first connecting piece and the second connecting piece can move in opposite directions on the base and are used for driving the clamping jaws to clamp an object to be detected.

Optionally, the outer clamping mechanism further comprises a guide rail, the guide rail is arranged on the base and extends along the moving direction of the first connecting piece and the second connecting piece, sliding blocks are respectively arranged on one sides, close to the guide rail, of the first connecting piece and the second connecting piece, and the first connecting piece and the second connecting piece are arranged on the guide rail in a sliding mode through the sliding blocks.

Optionally, at least two guide rails are provided, and at least two guide rails are parallel.

Optionally, the outer mechanism that presss from both sides still includes the stopper, the stopper sets up first connecting piece with between the second connecting piece, and with the base is connected, the stopper is used for in first direction right first connecting piece is spacing, and in the opposite direction of first direction is right the second connecting piece is spacing.

Optionally, the outer clamping mechanism further includes a driving portion, the driving portion is connected with the first connecting piece and the second connecting piece, and the driving portion is used for driving the first connecting piece and the second connecting piece to move in opposite directions or in opposite directions on the base.

Optionally, the outer clamping mechanism further comprises an adapter, the driving part is connected with the first connecting piece and the second connecting piece through the adapter, and the adapter is used for eliminating eccentric force of movement of the first connecting piece and the second connecting piece.

Optionally, the outer mechanism that presss from both sides still includes first inductor and second inductor, first inductor sets up one side of base, the second inductor sets up the opposite side of base, first inductor is used for the response wait to detect the positional information of thing, the second inductor is used for the response outer position information who presss from both sides the mechanism.

Optionally, the external clamping mechanism further comprises an upper computer and a control valve, wherein the upper computer is connected with the driving part through the control valve so as to control the driving part to operate;

the first sensor is electrically connected with the upper computer so as to trigger the first sensor when the object to be detected enters a clamping range, the first sensor is used for transmitting a first signal to the upper computer, and the upper computer is used for controlling the driving part to move forward through the control valve so that the driving part drives the first connecting piece and the second connecting piece to move in opposite directions and clamps the object to be detected through the clamping jaw;

the second inductor is electrically connected with the upper computer, so that the second inductor is triggered when the outer clamping mechanism moves to a designated position, the second inductor is used for transmitting a second signal to the upper computer, and the upper computer is used for controlling the driving part to reversely operate through the control valve, so that the driving part drives the first connecting piece and the second connecting piece to perform separation movement, and the object to be detected can be separated from the outer clamping mechanism.

Optionally, the outer clamping mechanism further comprises a protection block, and the protection block is arranged on one side, close to the object to be detected, of the clamping jaw.

In another aspect of the present utility model, a visual inspection apparatus is provided, comprising an external gripping mechanism as described above.

Advantageous effects

According to the external clamping mechanism and the visual detection device provided by the embodiment of the utility model, the external clamping mechanism is characterized in that the first connecting piece and the second connecting piece are respectively provided with at least two clamping jaws, and the first connecting piece and the second connecting piece are movably connected with the base, so that the first connecting piece and the second connecting piece can move on the base in opposite directions and clamp an object to be detected through the clamping jaws on the first connecting piece and the second connecting piece, the object to be detected can be limited in two directions, shaking in the clamping process of the object to be detected is avoided, and the stability of clamping operation is improved; simultaneously, the clamping jaw of the first connecting piece is arranged in a staggered manner with the clamping jaw on the second connecting piece, so that the clamping jaws on the first connecting piece and the second connecting piece are not coplanar in the direction perpendicular to the base, the object to be detected can be smoothly carried out when being carried out up and down by the two outer clamping mechanisms, the clamping jaws on the two outer clamping mechanisms are prevented from colliding during carrying, the requirements of various handover, overturning and carrying are met, and the stability of the overturning and carrying work is improved; meanwhile, the clamping precision is improved by arranging the first sensor and the second sensor, so that the object to be detected can be accurately moved to the detection position, the detection efficiency and the accuracy of the object to be detected in visual detection are improved, the reject ratio of products is reduced, and the production cost and the detection cost of the products are further reduced; meanwhile, the outer clamping mechanism has simple structure, small volume and lower manufacturing cost, and is favorable for popularization and application.

Drawings

FIG. 1 is a schematic perspective view of an external clamping mechanism according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of the external clamping mechanism according to the embodiment of the utility model when in operation.

The reference numerals are expressed as:

1. a clamping jaw; 2. a first connector; 3. a second connector; 4. a base; 5. a guide rail; 6. a sliding block; 7. a limiting block; 8. a driving section; 9. an adapter; 10. a first inductor; 11. a second inductor; 12. a protection block; 13. and (5) detecting the object to be detected.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Referring to fig. 1 to 2 in combination, according to an aspect of the embodiment of the present utility model, there is provided an external clamping mechanism, which includes a first connecting member 2, a second connecting member 3 and a base 4, at least two clamping jaws 1 are respectively disposed on the first connecting member 2 and the second connecting member 3, the clamping jaws 1 on the first connecting member 2 and the second connecting member 3 are disposed in a staggered manner in a moving direction of the first connecting member 2 and the second connecting member 3, the first connecting member 2 and the second connecting member 3 are movably connected with the base 4, and the first connecting member 2 and the second connecting member 3 can move on the base 4 in opposite directions for driving the clamping jaws 1 to clamp an object 13 to be detected.

At least two clamping jaws 1 are respectively arranged on the first connecting piece 2 and the second connecting piece 3, and the first connecting piece 2 and the second connecting piece 3 are movably connected with the base 4, so that the first connecting piece 2 and the second connecting piece 3 can move on the base 4 in opposite directions and clamp the object 13 to be detected through the clamping jaws 1 on the first connecting piece 2 and the second connecting piece 3, the object 13 to be detected can be limited in two directions, shaking in the clamping process of the object 13 to be detected is avoided, and the stability of clamping operation is improved; simultaneously, the clamping jaw 1 of the first connecting piece 2 and the clamping jaw 1 on the second connecting piece 3 are arranged in a staggered manner, so that the clamping jaws 1 on the first connecting piece 2 and the second connecting piece 3 are not coplanar in the direction perpendicular to the base 4, the object 13 to be detected can be smoothly carried out when being carried out up and down by the two outer clamping mechanisms, the clamping jaws 1 on the two outer clamping mechanisms are prevented from colliding during carrying, the requirements of various handover, overturning and carrying are met, and the stability of the overturning and carrying work is improved; meanwhile, the outer clamping mechanism has simple structure, small volume and lower manufacturing cost, and is favorable for popularization and application.

Wherein, outer clamp mechanism includes base 4, and base 4 can rectangle or circular platform etc. be provided with first connecting piece 2 and second connecting piece 3 on the base 4, for other parts such as first connecting piece 2 and second connecting piece 3 provide stable mounted position through setting up base 4, improved the stability of centre gripping action.

Wherein the first connecting piece 2 and the second connecting piece 3 are approximately elongated, the first connecting piece 2 and the second connecting piece 3 are movably arranged on the base 4, and as an implementation manner, the first connecting piece 2, the second connecting piece 3 and the base 4 are all smooth plane structures, and the first connecting piece 2 and the second connecting piece 3 are slidably arranged on the base 4; as another embodiment, the first connecting piece 2 and the second connecting piece 3 are provided with grooves, the base 4 is provided with a boss, and the first connecting piece 2 and the second connecting piece 3 are connected with the base 4 through spigot positioning and matching.

The outer clamping mechanism further comprises a clamping jaw 1, the clamping jaw 1 is connected with the first connecting piece 2 and the second connecting piece 3, the connecting mode can be bolt connection or clamping connection and the like, the clamping jaw 1 can be detached and turned over from the first connecting piece 2 and the second connecting piece 3, and the outer clamping mechanism is not limited further.

Specifically, a plurality of clamping jaws 1 may be provided, in this embodiment of the present utility model, two clamping jaws 1 are provided on the first connecting member 2 and the second connecting member 3, two clamping jaws 1 on the first connecting member 2 are provided on a side of the first connecting member 2 away from the second connecting member 3, and two clamping jaws 1 on the second connecting member 3 are provided on a side of the second connecting member 3 away from the first connecting member 2.

Wherein the clamping jaw 1 is substantially L-shaped.

Specifically, in the embodiment of the present utility model, the intersection point of the straight lines where the included angle angular lines of the two L-shaped clamping jaws 1 on the first connecting piece 2 are located is located at one side of the base 4 away from the clamping jaws 1, and the intersection point of the straight lines where the included angle angular lines of the two L-shaped clamping jaws 1 on the second connecting piece 3 are located is located at one side of the base 4 close to the clamping jaws 1.

Wherein, two clamping jaws 1 on the first connecting piece 2 move synchronously, and two clamping jaws 1 on the second connecting piece 3 also move synchronously, so that the stability of clamping operation is improved.

Wherein, the first connecting piece 2 and the second connecting piece 3 are oppositely arranged on the base 4, and the moving directions of the first connecting piece 2 and the second connecting piece 3 are opposite.

Wherein, the moving direction of the first connecting piece 2 is perpendicular to the length direction of the first connecting piece 2; the moving direction of the second connecting piece 3 is perpendicular to the length direction of the second connecting piece 3.

Specifically, the first connecting piece 2 and the second connecting piece 3 move in opposite directions, that is, the first connecting piece 2 moves in a direction approaching the second connecting piece 3, and the second connecting piece 3 moves in a direction approaching the first connecting piece 2, so as to drive the clamping jaw 1 on the first connecting piece 2 and the second connecting piece 3 to move in opposite directions until the clamping jaw 1 is attached to the object 13 to be detected, so that the object 13 to be detected can be clamped by the four clamping jaws 1; the first connecting piece 2 and the second connecting piece 3 move away from each other, namely the first connecting piece 2 moves towards the direction away from the second connecting piece 3, and the second connecting piece 3 moves towards the direction away from the first connecting piece 2, so that the clamping jaw 1 on the first connecting piece 2 and the second connecting piece 3 is driven to move away from each other, and the object 13 to be detected can be separated from the outer clamping mechanism.

The outer clamping mechanism further comprises a guide rail 5, the guide rail 5 is arranged on the base 4 and extends along the moving direction of the first connecting piece 2 and the second connecting piece 3, sliding blocks 6 are respectively arranged on one sides, close to the guide rail 5, of the first connecting piece 2 and the second connecting piece 3, and the first connecting piece 2 and the second connecting piece 3 are arranged on the guide rail 5 in a sliding mode through the sliding blocks 6.

The guide rail 5 is arranged on one side, close to the clamping jaw 1, of the base 4, the sliding block 6 is arranged on one side, close to the base 4, of the first connecting piece 2 and the second connecting piece 3, so that the sliding block 6 can drive the first connecting piece 2 and the second connecting piece 3 to slide on the base 4 along the extending direction of the guide rail 5, further the clamping jaw 1 is driven to clamp the object 13 to be detected, and through the arrangement of the guide rail 5 and the sliding block 6, the clamping jaw 1 can be prevented from shaking or shifting in the moving process, the stability of clamping action is improved, the clamping precision of the object 13 to be detected is further improved, deviation of the position of the object 13 to be detected is avoided, and the accuracy of visual detection results is improved; meanwhile, the external clamping mechanism is simple in structure, small in size, low in manufacturing cost and beneficial to popularization and application.

Wherein the guide rail 5 may be rectangular or the like.

The guide rail 5 is disposed on a side of the base 4 near the clamping jaw 1, and the guide rail 5 is connected with the base 4, where a connection manner may be bolt connection or welding, etc., and the utility model is not limited further.

In particular, the guide rail 5 extends in the direction of movement of the first or second connection member 2, 3 on the base 4, i.e. the guide rail 5 extends in a direction perpendicular to the length of the first or second connection member 2, 3.

The sliding blocks 6 are respectively arranged on one sides of the first connecting piece 2 and the second connecting piece 3, which are close to the base 4, the sliding blocks 6 can be rectangular, two sliding blocks 6 can be arranged, the two sliding blocks 6 are respectively connected with the first connecting piece 2 and the second connecting piece 3, the connection modes can be bolt connection or welding, and the like, and the utility model is not limited further.

Specifically, the sliding block 6 is provided with a groove on one side close to the base 4, the groove is identical to the guide rail 5 in shape, the groove penetrates through the sliding block 6 along the extending direction of the guide rail 5, the guide rail 5 is arranged in the groove, the sliding block 6 can move in the extending direction of the guide rail 5, and then the first connecting piece 2 and the second connecting piece 3 are driven to move in the extending direction of the guide rail 5, so that the clamping jaw 1 on the first connecting piece 2 and the second connecting piece 3 clamps the object 13 to be detected.

At least two guide rails 5 are arranged, and at least two guide rails 5 are parallel.

Through setting up two at least guide rails 5 to make first connecting piece 2 and second connecting piece 3 can slide on two at least guide rails 5, can avoid first connecting piece 2 and second connecting piece 3 to take place to rock or skew at the removal in-process, improved the stability of centre gripping action.

Wherein, at least two guide rails 5 are arranged in parallel, and at least two guide rails 5 are arranged along the length direction of the first connecting piece 2 or the second connecting piece 3.

Specifically, in the embodiment of the present utility model, two guide rails 5 are provided, four sliding blocks 6 are provided, and two sliding blocks 6 are respectively provided on the first connecting piece 2 and the second connecting piece 3.

The outer clamping mechanism further comprises a limiting block 7, wherein the limiting block 7 is arranged between the first connecting piece 2 and the second connecting piece 3 and is connected with the base 4, and the limiting block 7 is used for limiting the first connecting piece 2 in the first direction and limiting the second connecting piece 3 in the opposite direction of the first direction.

The limiting block 7 is arranged to limit the first connecting piece 2 and the second connecting piece 3 in the clamping action, so that the damage to the object 13 to be detected caused by overlarge clamping force in the clamping process can be avoided, and the operation stability is improved; meanwhile, the first connecting piece 2 and the second connecting piece 3 can be prevented from being damaged due to collision in the clamping action, and the service lives of the first connecting piece 2 and the second connecting piece 3 are prolonged.

The limiting block 7 may be a rectangular block, etc., the limiting block 7 is disposed between the first connecting piece 2 and the connecting piece, and the limiting block is connected with the base 4 quickly, and the connection mode may be bolting or welding, etc., which is not limited in the utility model.

Specifically, the limiting block 7 is disposed on a first direction side of the first connecting piece 2, the limiting block 7 is used for limiting the first connecting piece 2 in the first direction, that is, the limiting block 7 is disposed on a reverse side of the first direction of the second connecting piece 3, and the limiting block 7 is used for limiting the second connecting piece 3 on the reverse side of the first direction.

In this embodiment of the present utility model, the first direction is the direction in which the first connecting piece 2 faces the second connecting piece 3.

The outer clamping mechanism further comprises a driving part 8, the driving part 8 is connected with the first connecting piece 2 and the second connecting piece 3, and the driving part 8 is used for driving the first connecting piece 2 and the second connecting piece 3 to move in opposite directions or in opposite directions on the base 4.

Through setting up drive division 8 to make drive division 8 be connected with first connecting piece 2 and second connecting piece 3, can realize that drive division 8 drive first connecting piece 2 and second connecting piece 3 remove, and then drive clamping jaw 1 presss from both sides tightly to wait to detect thing 13, provide stable power supply for clamping jaw 1 removes through setting up drive division 8, improved the stability of centre gripping action.

The driving part 8 comprises driving cylinders, which can be micro cylinders, and the like, and in the embodiment of the utility model, two micro cylinders are arranged and are respectively connected with the first connecting piece 2 and the second connecting piece 3, so that the object 13 to be detected can be clamped or loosened by only one positive pressure air pipe, and the vacuum adsorption carrier can be directly replaced, and the vacuum adsorption carrier has strong universality and good interchangeability.

Wherein, drive portion 8 still includes the cylinder block, and the cylinder block sets up two, and two cylinder blocks are vertical to be set up on the bottom plate, have seted up the through-hole on the cylinder block, and the drive cylinder runs through the cylinder block through the through-hole and installs, provides stable mounted position for the drive cylinder through setting up the cylinder block.

Wherein, drive portion 8 still includes quick connector, and drive cylinder is connected with the air supply through quick connector, can break off fast and connect drive cylinder through setting up quick connector, and the action is simple, saves time and manpower, has improved work efficiency.

The outer clamping mechanism further comprises an adapter 9, the driving part 8 is connected with the first connecting piece 2 and the second connecting piece 3 through the adapter 9, and the adapter 9 is used for eliminating eccentric force of movement of the first connecting piece 2 and the second connecting piece 3.

The eccentric force of driving cylinder output can be lightened through setting up adapter 9, make cylinder and connecting piece stable work in the eccentric scope of permission, can solve the not enough problem of balanced precision simultaneously, so that the action of cylinder during operation is steady, can realize that first connecting piece 2 and second connecting piece 3 can carry out linear motion on base 4, and then can avoid clamping jaw 1 to take place to rock or skew in the removal in-process, the stability of centre gripping action has been improved, and then the centre gripping precision of waiting to detect 13 has been increased, avoid waiting to detect the position of 13 to appear the error, the degree of accuracy of visual inspection result has been improved.

Wherein, adapter 9 can be the floating joint, and the floating joint sets up two, and two actuating cylinders are connected with first connecting piece 2 and second connecting piece 3 respectively through two adapter 9.

Specifically, the first connecting piece 2 and the second connecting piece 3 are respectively provided with a clamping groove, the two adapters 9 are respectively embedded into the first connecting piece 2 and the second connecting piece 3 through the clamping grooves and are respectively connected with two driving cylinders, the two driving cylinders operate to drive the two adapters 9 to move, and then the first connecting piece 2 and the second connecting piece 3 are driven to move in opposite directions or in opposite directions, so that the clamping jaw 1 clamps or loosens the object 13 to be detected.

Wherein the directions of movement of the two adapters 9 are opposite.

The outer clamp mechanism further comprises a first sensor 10 and a second sensor 11, wherein the first sensor 10 is arranged on one side of the base 4, the second sensor 11 is arranged on the other side of the base 4, the first sensor 10 is used for sensing position information of an object 13 to be detected, and the second sensor 11 is used for sensing position information of the outer clamp mechanism.

By arranging the first sensor 10 to detect the position of the object to be detected 13, the first sensor 10 is triggered when the object to be detected 13 enters the clamping range, the clamping jaws 1 on the first connecting piece 2 and the second connecting piece 3 can clamp the object to be detected 13 when the object to be detected 13 enters the clamping range, and simultaneously, alarm signals can be transmitted when the clamping fails or the object to be detected 13 falls, so that the stability of clamping operation is improved; by arranging the second inductor 11, when the clamping jaw 1 finishes clamping, a signal that the clamping is successful and the next operation can be performed is transmitted, so that the second inductor 11 is triggered when the outer clamping mechanism moves to the detection position, and when the outer clamping mechanism moves to the detection position, the clamping jaw 1 on the first connecting piece 2 and the second connecting piece 3 loosens the object 13 to be detected. The clamping precision is improved by arranging the first sensor 10 and the second sensor 11, so that the object 13 to be detected can be accurately moved to the detection position, the detection efficiency and the accuracy of the object 13 to be detected in visual detection are improved, the reject ratio of products is reduced, the production cost and the detection cost of the products are reduced, and popularization and use are facilitated.

The first sensor 10 and the second sensor 11 are respectively disposed at two ends of the base 4, the first sensor 10 may be a feeding sensor, and the second sensor 11 may be a clamping sensor.

Specifically, the object to be detected 13 enters the clamping range to trigger the first sensor 10, at the moment, the driving cylinder drives the adapter 9 to move, and further drives the first connecting piece 2 and the second connecting piece 3 to do relatively close linear movement, so that the clamping jaw 1 on the first connecting piece 2 and the second connecting piece 3 moves in opposite directions, clamping of the object to be detected 13 is realized, and meanwhile, an alarm signal can be transmitted when the clamping fails or the object to be detected 13 falls off, so that the stability of clamping operation is improved; the second inductor 11 is triggered after the movement of the outer clamping mechanism reaches the designated position, the second inductor 11 can transmit a signal that the clamping is successful and the next operation can be performed, at the moment, the driving cylinder drives the adapter 9 to move, and further drives the first connecting piece 2 and the second connecting piece 3 to do relatively far away linear movement, so that the clamping jaw 1 on the first connecting piece 2 and the second connecting piece 3 moves away from each other, and the object 13 to be detected is released.

The outer clamping mechanism also comprises an upper computer and a control valve, wherein the upper computer is connected with the driving part 8 through the control valve so as to control the driving part 8 to operate; the first sensor 10 is electrically connected with the upper computer, so as to trigger the first sensor 10 when the object 13 to be detected enters the clamping range, the first sensor 10 is used for transmitting a first signal to the upper computer, and the upper computer is used for controlling the driving part 8 to run forward through the control valve, so that the driving part 8 drives the first connecting piece 2 and the second connecting piece 3 to move oppositely, and the object 13 to be detected is clamped through the clamping jaw 1; the second sensor 11 is electrically connected with the upper computer, so as to trigger the second sensor 11 when the outer clamping mechanism moves to a designated position, the second sensor 11 is used for transmitting a second signal to the upper computer, and the upper computer is used for controlling the driving part 8 to reversely operate through the control valve, so that the driving part 8 drives the first connecting piece 2 and the second connecting piece 3 to perform separation movement, and the object 13 to be detected can be separated from the outer clamping mechanism.

Through setting up the control valve and can control drive portion 8 to carry out two kinds of movements that the direction of motion is opposite, can avoid waiting to detect thing 13 and drop at the centre gripping in-process to make waiting to detect thing 13 can be accurately moved to the testing position, improved the stability of drive portion 8 work, and then improved waiting to detect the degree of accuracy of 13 visual inspection.

The upper computer may be a computer or a single chip microcomputer that directly sends an operation instruction, and is connected to the first sensor 10 and the second sensor 11, and is configured to receive signals from the first sensor 10 and the second sensor 11 and control the driving portion 8 to operate through a control valve.

The control valve can be an electromagnetic valve, and is connected with the driving cylinder and used for controlling the driving cylinder to stretch out and draw back.

The designated position may be a detection position when the object 13 to be detected is visually detected.

Specifically, the upper computer is electrically connected with the first sensor 10 and the second sensor 11 respectively, when the object 13 to be detected enters the clamping range, the first sensor 10 is triggered, the first sensor 10 transmits a first signal to the upper computer, and at the moment, the upper computer outputs an instruction to control the two driving cylinders to positively run through the control valve so as to enable the clamping jaw 1 on the first connecting piece 2 and the second connecting piece 3 to oppositely move, so that the object 13 to be detected is clamped; the second sensor 11 is triggered after the movement of the outer clamping mechanism reaches a designated position, the second sensor 11 transmits a second signal to the upper computer, and at the moment, the upper computer outputs an instruction to control the two driving cylinders to reversely operate through the control valve, so that the clamping jaw 1 on the first connecting piece 2 and the second connecting piece 3 moves away from each other, and the object 13 to be detected can be separated from the outer clamping mechanism.

The first signal may be a signal that the clamping jaw 1 is successful in clamping, and the second signal may be a signal that the clamping jaw is successful in clamping and can perform the next operation.

The outer clamping mechanism further comprises a protection block 12, and the protection block 12 is arranged on one side of the clamping jaw 1 close to the object 13 to be detected.

The clamping jaw 1 can be prevented from being in direct contact with the object 13 to be detected by arranging the protection block 12 on one side, close to the object 13 to be detected, of the clamping jaw 1, so that damage to the edge of the object 13 to be detected can be avoided, the yield of products is improved, abrasion of the clamping jaw 1 can be avoided, and the service life of the clamping jaw 1 is prolonged.

The protection blocks 12 may be made of other flexible materials such as plastic, and in the embodiment of the utility model, four protection blocks 12 are arranged, and the four protection blocks 12 are arranged on the four clamping jaws 1 in a one-to-one correspondence manner.

Specifically, the protection block 12 is disposed at a side of the clamping jaw 1 near the object 13 to be detected, and the protection block 12 is connected with the clamping jaw 1, and the connection manner may be adhesive connection, etc., which is not limited in the present utility model.

In another aspect of the present utility model, a visual inspection apparatus is provided, comprising an external clamping mechanism as described above.

According to the external clamping mechanism and the visual detection device provided by the embodiment of the utility model, the external clamping mechanism is characterized in that at least two clamping jaws 1 are respectively arranged on the first connecting piece 2 and the second connecting piece 3, and the first connecting piece 2 and the second connecting piece 3 are movably connected with the base 4, so that the first connecting piece 2 and the second connecting piece 3 can move on the base 4 in opposite directions and clamp an object 13 to be detected through the clamping jaws 1 on the first connecting piece and the second connecting piece, the object 13 to be detected can be limited in two directions, shaking in the clamping process of the object 13 to be detected is avoided, and the stability of clamping operation is improved; simultaneously, the clamping jaw 1 of the first connecting piece 2 and the clamping jaw 1 on the second connecting piece 3 are arranged in a staggered manner, so that the clamping jaws 1 on the first connecting piece 2 and the second connecting piece 3 are not coplanar in the direction perpendicular to the base 4, the object 13 to be detected can be smoothly carried out when being carried out up and down by the two outer clamping mechanisms, the clamping jaws 1 on the two outer clamping mechanisms are prevented from colliding during carrying, the requirements of various handover, overturning and carrying are met, and the stability of the overturning and carrying work is improved; meanwhile, the clamping precision is improved by arranging the first sensor 10 and the second sensor 11, so that the object 13 to be detected can be accurately moved to the detection position, the detection efficiency and the accuracy of the object 13 to be detected in visual detection are improved, the reject ratio of products is reduced, and the production cost and the detection cost of the products are further reduced; meanwhile, the outer clamping mechanism has simple structure, small volume and lower manufacturing cost, and is favorable for popularization and application.

It will be readily appreciated by those skilled in the art that the above advantageous ways can be freely combined and superimposed without conflict.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model. The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims (10)

1. The utility model provides an outer mechanism that presss from both sides, its characterized in that includes first connecting piece (2), second connecting piece (3) and base (4), first connecting piece (2) with be provided with two at least clamping jaw (1) on second connecting piece (3) respectively, first connecting piece (2) with clamping jaw (1) on second connecting piece (3) are in first connecting piece (2) with the removal direction of second connecting piece (3) is in the wrong setting mutually, first connecting piece (2) with second connecting piece (3) with base (4) swing joint, first connecting piece (2) with second connecting piece (3) can be in opposite movement on base (4), be used for driving clamping jaw (1) presss from both sides tightly to wait to detect thing (13).

2. The external clamping mechanism according to claim 1, further comprising a guide rail (5), wherein the guide rail (5) is arranged on the base (4) and extends along the moving direction of the first connecting piece (2) and the second connecting piece (3), sliding blocks (6) are respectively arranged on one sides, close to the guide rail (5), of the first connecting piece (2) and the second connecting piece (3), and the first connecting piece (2) and the second connecting piece (3) are slidably arranged on the guide rail (5) through the sliding blocks (6).

3. External clamping mechanism according to claim 2, characterized in that at least two of the guide rails (5) are provided, at least two of the guide rails (5) being parallel.

4. The external clamping mechanism according to claim 1, further comprising a limiting block (7), wherein the limiting block (7) is arranged between the first connecting piece (2) and the second connecting piece (3) and is connected with the base (4), and the limiting block (7) is used for limiting the first connecting piece (2) in a first direction and limiting the second connecting piece (3) in a direction opposite to the first direction.

5. The external clamping mechanism according to claim 1, further comprising a driving part (8), wherein the driving part (8) is respectively connected with the first connecting piece (2) and the second connecting piece (3), and the driving part (8) is used for driving the first connecting piece (2) and the second connecting piece (3) to perform opposite or opposite movement on the base (4).

6. The external clamping mechanism according to claim 5, further comprising two adapters (9), wherein the driving part (8) is connected with the first connecting piece (2) and the second connecting piece (3) through the two adapters (9) respectively.

7. The external clamping mechanism according to claim 6, further comprising a first sensor (10) and a second sensor (11), wherein the first sensor (10) is arranged on one side of the base (4), the second sensor (11) is arranged on the other side of the base (4), the first sensor (10) is used for sensing position information of the object to be detected (13), and the second sensor (11) is used for sensing position information of the external clamping mechanism.

8. The external clamping mechanism according to claim 7, further comprising an upper computer and a control valve, wherein the upper computer is connected with the driving part (8) through the control valve to control the driving part (8) to operate;

the first sensor (10) is electrically connected with the upper computer so as to trigger the first sensor (10) when the object (13) to be detected enters a clamping range, the first sensor (10) is used for transmitting a first signal to the upper computer, and the upper computer is used for controlling the driving part (8) to operate positively through the control valve so that the driving part (8) drives the first connecting piece (2) and the second connecting piece (3) to move oppositely and clamp the object (13) to be detected through the clamping jaw (1);

the second inductor (11) is electrically connected with the upper computer, so that the second inductor (11) is triggered when the outer clamping mechanism moves to a designated position, the second inductor (11) is used for transmitting a second signal to the upper computer, and the upper computer is used for controlling the driving part (8) to reversely operate through the control valve, so that the driving part (8) drives the first connecting piece (2) and the second connecting piece (3) to perform separation movement, and the object (13) to be detected can be separated from the outer clamping mechanism.

9. External clamping mechanism according to claim 1, characterized in that it further comprises a protection block (12), said protection block (12) being arranged on the side of the clamping jaw (1) close to the object to be detected (13).

10. A visual inspection device comprising the external gripping mechanism of any one of claims 1 to 9.