CN212351761U

CN212351761U - Automatic clamping and positioning device

Info

Publication number: CN212351761U
Application number: CN202021244319.6U
Authority: CN
Inventors: 王全林; 刘文华; 王红星
Original assignee: Shenzhen Taowine Industrial Co ltd
Current assignee: SHENZHEN DAOYUAN INDUSTRIAL CO LTD
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-01-15
Anticipated expiration: 2030-06-29

Abstract

The utility model discloses an automatic press from both sides tight positioner relates to anchor clamps technical field. The automatic clamping and positioning device comprises a placing platform, a clamping mechanism, an adsorption mechanism and a self-locking slider, wherein the clamping mechanism comprises a first slider, a second slider, a first positioning piece and a second positioning piece which are arranged on the placing platform, the first positioning piece and the second positioning piece are arranged on two adjacent sides of the placing platform, the first slider and the second slider are arranged on the other two adjacent sides of the placing platform, the first slider is arranged opposite to the first positioning piece, the second slider is arranged opposite to the second positioning piece, the placing platform is provided with a first through hole and a second through hole, the adsorption mechanism moves along the axial direction of the first through hole to adsorb a clamping piece, and the self-locking slider moves along the axial direction of the second through hole to control the first slider and the second slider to move towards the clamping piece respectively. The positioning device is simple in structure, low in cost and high in positioning accuracy.

Description

Automatic clamping and positioning device

Technical Field

The utility model relates to an anchor clamps technical field particularly, relates to an automatic clamping and positioning device.

Background

The clamping and positioning device is used for fixing a processing object to occupy a correct position in a mechanical manufacturing process so as to receive construction or detection. In the process of producing or detecting a precision mechanical instrument, a clamping and positioning device is often required to fix the position of the precision mechanical instrument. The precision mechanical instrument clamping device in the prior art is expensive, has low precision and cannot meet the high-precision working requirement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic clamping and positioning device to solve the technical problem that the clamping and positioning device among the prior art is expensive and the precision is not high.

The embodiment of the utility model is realized like this:

the embodiment of the utility model provides an automatic clamping and positioning device, including place the platform, clamping mechanism, adsorption mechanism and auto-lock slider, clamping mechanism includes first slider, second slider and first setting element and the second setting element of setting on place the platform, first setting element and second setting element are located place the platform's adjacent both sides, first slider and second slider are located place the platform's another adjacent both sides, first slider sets up with first setting element relatively, second slider sets up with the second setting element relatively, place the platform is last to be equipped with first through-hole and second through-hole, adsorption mechanism treats the clamping piece in order to adsorb along the axial motion of first through-hole, the auto-lock slider treats the clamping piece motion in order to control first slider and second slider orientation respectively along the axial motion of second through-hole.

Optionally, the placing platform is further provided with a first strip-shaped hole and a second strip-shaped hole, the first strip-shaped hole and the second strip-shaped hole are perpendicular to each other in length direction, the first floating block slides along the length direction of the first strip-shaped hole, and the second floating block slides along the length direction of the second strip-shaped hole.

Optionally, the automatic clamping and positioning device further comprises an end cover connected with one side, opposite to the bearing surface, of the placing platform, the clamping mechanism further comprises a main push rod and a first spring, the first floating block comprises a first base and a first boss connected with the first base, the main push rod is arranged in the end cover in a sliding mode, the main push rod, the first base and the telescopic end of the first spring are sequentially connected along the main pushing direction of the main push rod, the fixed end of the first spring is connected with the end cover, and the first boss extends out of the placing platform through the first strip-shaped hole and slides along the length direction of the first strip-shaped hole.

Optionally, the clamping mechanism further comprises a second spring, the second slider comprises a second base, a second boss and a cam, the second boss and the cam are respectively arranged on two opposite sides of the second base, a fixed end of the second spring is connected with the end cover, a telescopic end of the second spring is connected with the second base, an inclined plane is arranged on one side, close to the second base, of the main push rod, the inclined plane is tangent to the cam, and the second boss extends out of the placing platform through the second strip-shaped hole and slides along the length direction of the second strip-shaped hole.

Optionally, one side that the place the platform was kept away from to the main push rod is equipped with the first step face that is parallel to each other, second step face and third step face, first step face, the second step face, the distance between one side that third step face and main push rod are close to the place the platform increases progressively along the main push direction of main push rod in proper order, auto-lock slider includes the third base, third boss and third spring, one side that the third base is close to place the platform is connected with the third boss, one side and the third spring coupling of keeping away from place the platform, still be equipped with the third through-hole on the third base, the part that the main push rod set up first step face and second step face passes the third through-hole and slides in the third through-hole, the third boss stretches out place the platform by the second through-hole and moves along the axial direction of second through-hole.

Optionally, the adsorption mechanism comprises a fixing seat, a magnet and a telescopic assembly, one end of the fixing seat is connected with the magnet, the other end of the fixing seat is connected with the telescopic assembly, and the magnet moves along the axis direction of the first through hole under the driving of the telescopic assembly.

Optionally, the automatic clamping and positioning device further comprises a first fixing plate, the adsorption mechanism further comprises a pull-down spring, one end of the pull-down spring is connected with the fixing seat, the other end of the pull-down spring is connected with the first fixing plate, and the pull-down spring is in a compressed state under the action of the telescopic assembly.

Optionally, the clamping mechanism further includes a first guide pin, the first guide pin is fixed on the end cover and is parallel to the extending direction of the first spring, a first guide hole is formed in the first base, and the first guide hole is matched with the first guide pin so that the first base slides along the first guide pin.

Optionally, the clamping mechanism further includes a second guide pin, the second guide pin is fixed on the end cover and is parallel to the extending direction of the second spring, a second guide hole is formed in the second base, and the second guide hole is matched with the second guide pin so that the second base slides along the second guide pin.

Optionally, a fourth through hole is formed in the third step surface, and the adsorption mechanism penetrates through the fourth through hole and moves along the axial direction of the fourth through hole.

The utility model discloses beneficial effect includes:

the embodiment of the utility model provides an automatic clamping and positioning device includes place the platform, clamping mechanism, adsorption apparatus constructs and auto-lock slider, and place the platform and be used for placing and wait the clamping piece, and clamping mechanism is used for pressing from both sides the clamping piece of waiting, and adsorption apparatus treats that the clamping piece adsorbs to further fix and waits the clamping piece, and the auto-lock slider is used for controlling clamping mechanism to press from both sides and tightly wait the clamping piece; the clamping mechanism comprises a first floating block, a second floating block, a first positioning piece and a second positioning piece, wherein the first positioning piece and the second positioning piece are arranged on the placing platform, the first positioning piece and the second positioning piece are positioned at two adjacent sides of the placing platform, the first floating block and the second floating block are positioned at the other two adjacent sides of the placing platform, and the first positioning piece and the second positioning piece are used for limiting two sides of the to-be-clamped piece respectively so that the to-be-clamped piece can not move in the direction towards the first positioning piece and the second positioning piece; the first floating block is arranged opposite to the first positioning piece, can move towards the to-be-clamped piece, is matched with the first positioning piece and clamps the opposite side of the to-be-clamped piece; the second floating block and the second positioning piece are oppositely arranged, the second floating block also moves towards the to-be-clamped piece and is matched with the second positioning piece to clamp the other opposite side of the to-be-clamped piece; the placing platform is provided with a first through hole and a second through hole, and the adsorption mechanism moves along the axial direction of the first through hole to adsorb the to-be-clamped piece, so that the adsorption positioning of the to-be-clamped piece in the vertical direction is realized; the self-locking floating block moves along the axial direction of the second through hole to control the first floating block and the second floating block to move towards the to-be-clamped piece respectively, the first floating block, the second floating block, the first positioning piece and the second positioning piece are matched with each other to enclose the to-be-clamped piece, and the to-be-clamped piece is clamped and positioned in the horizontal direction. The automatic clamping and positioning device is simple in structure and low in cost, and achieves high positioning precision through mutual matching of the clamping mechanism and the adsorption mechanism.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an automatic clamping and positioning device according to an embodiment of the present invention;

fig. 2 is a second schematic structural view of an automatic clamping and positioning device according to an embodiment of the present invention;

fig. 3 is a third schematic structural view of an automatic clamping and positioning device according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a main push rod in the automatic clamping and positioning device according to an embodiment of the present invention;

fig. 5 is a schematic structural view of an adsorption mechanism in the automatic clamping and positioning device according to the embodiment of the present invention.

Icon: 100-automatic clamping and positioning device; 110-a placement platform; 111-a first via; 121-a first slider; 1211 — a first base; 1212-a first boss; 122-a second slider; 1221-a second base; 1222-a second boss; 1223-a cam; 123-a first positioning member; 124-a second positioning element; 125-main push rod; 1251-first step face; 1252-second step surface; 1253-third step; 1254-bevel; 1255-fourth via; 126-a first spring; 127-a second spring; 128-a first guide pin; 129-a second guide pin; 130-an adsorption mechanism; 131-a magnet; 132-a pull-down spring; 140-self-locking slider; 141-a third mount; 142-a third boss; 150-end cap.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. The terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 1 is one of the schematic structural diagrams of an automatic clamping and positioning device 100 provided in an embodiment of the present invention, please refer to fig. 1, the embodiment provides an automatic clamping and positioning device 100, which includes a placement platform 110, a clamping mechanism, an adsorption mechanism 130 and a self-locking slider 140, the placement platform 110 is used for placing a to-be-clamped piece, the clamping mechanism is used for clamping the to-be-clamped piece, the adsorption mechanism 130 adsorbs the to-be-clamped piece to further fix the to-be-clamped piece, and the self-locking slider 140 is used for controlling the clamping mechanism to clamp the to-be-clamped piece; the clamping mechanism comprises a first floating block 121, a second floating block 122, a first positioning piece 123 and a second positioning piece 124, wherein the first positioning piece 123 and the second positioning piece 124 are arranged on the placing platform 110; the first floating block 121 is arranged opposite to the first positioning piece 123, and the first floating block 121 can move towards the piece to be clamped and is matched with the first positioning piece 123 to clamp the opposite side of the piece to be clamped; the second floating block 122 is arranged opposite to the second positioning piece 124, and the second floating block 122 also moves towards the piece to be clamped and is matched with the second positioning piece 124 to clamp the other opposite side of the piece to be clamped; the placing platform 110 is provided with a first through hole 111 and a second through hole, and the adsorption mechanism 130 moves along the axial direction of the first through hole 111 to adsorb a to-be-clamped piece, so that adsorption positioning in the vertical direction of the to-be-clamped piece is realized; the self-locking floating block 140 moves along the axial direction of the second through hole to respectively control the first floating block 121 and the second floating block 122 to move towards the to-be-clamped piece, and the first floating block 121, the second floating block 122, the first positioning piece 123 and the second positioning piece 124 are matched with each other to enclose the to-be-clamped piece, so that the horizontal clamping and positioning of the to-be-clamped piece are realized. The automatic clamping and positioning device 100 has a simple structure and low cost, and achieves high positioning accuracy through the mutual matching of the clamping mechanism and the adsorption mechanism 130.

It should be noted that, firstly, a clamping mechanism and an adsorption mechanism 130 are defined as a group of working units, and the number of the working units and the self-locking slider 140 is not limited, and may be one or more; for example, the automatic clamping and positioning device 100 may include a plurality of sets of working units, each working unit is provided with one self-locking slider 140, and the plurality of sets of working units do not interfere with each other, and work independently and are controlled by the respective self-locking sliders 140; alternatively, the automatic clamping and positioning device 100 may include a plurality of groups of working units, the plurality of groups of working units are uniformly controlled by one self-locking slider 140, and a plurality of members to be clamped are simultaneously clamped among the plurality of groups of working units; the automatic clamping and positioning device 100 is provided with a plurality of clamping stations by the plurality of groups of working units, a plurality of pieces to be clamped can be clamped, and the working efficiency of the automatic clamping and positioning device 100 is effectively improved. Of course, the automatic clamp positioning device 100 may include only one set of work units and one self-locking slider 140, and in this case, the automatic clamp positioning device 100 has only one clamping station.

Secondly, in each group of working units, the number of the first positioning pieces 123 and the second positioning pieces 124 is not limited, and can be reasonably determined according to the size of a piece to be clamped; for example, if the surface to be clamped of the member to be clamped is long, a plurality of first positioning members 123 or a plurality of second positioning members 124 may be arranged at intervals in the length extending direction of the surface to be clamped, so as to ensure the stability and accuracy of clamping and improve the positioning accuracy of the member to be clamped; if the number of the first positioning members 123 or the second positioning members 124 is plural, the plural first positioning members 123 or the plural second positioning members 124 may be distributed along a straight line; if the surface to be clamped of the part to be clamped is short, only one first positioning element 123 or one second positioning element 124 may be provided in the longitudinal extension of the surface to be clamped.

Third, since the first through holes 111 are used to pass the adsorption mechanisms 130 and the second through holes are used to pass the self-locking sliders 140, the number of the first through holes 111 should be equal to the number of the adsorption mechanisms 130 and the number of the second through holes should be equal to the number of the self-locking sliders 140.

The above scheme provides a clamping mechanism, and an implementable setting scheme of the first slider 121 and the second slider 122 in the above clamping mechanism is provided below, optionally, the placing platform 110 is further provided with a first strip-shaped hole and a second strip-shaped hole, the length directions of the first strip-shaped hole and the second strip-shaped hole are mutually perpendicular, the first slider 121 slides along the length direction of the first strip-shaped hole, and the second slider 122 slides along the length direction of the second strip-shaped hole; first slider 121 stretches out place the surface of platform 110 through first bar hole to slide in first bar hole, press from both sides tightly or loosen one side of treating the clamping piece, second slider 122 stretches out place the surface of platform 110 through second bar hole, and slide in second bar hole, press from both sides tightly or loosen and treat the clamping piece opposite side, the length direction mutually perpendicular in first bar hole and second bar hole, make first slider 121 and second slider 122 clamp simultaneously and treat clamping piece looks vertically both sides.

Fig. 2 is a second schematic structural view of the automatic clamping and positioning device 100 according to an embodiment of the present invention, and fig. 3 is a third schematic structural view of the automatic clamping and positioning device 100 according to an embodiment of the present invention, please refer to fig. 2 and fig. 3 in combination, optionally, the automatic clamping and positioning device 100 further includes an end cover 150 connected to a surface of the placing platform opposite to the carrying surface, the end cover 150 is used for installing a clamping mechanism, an adsorption mechanism 130 and a self-locking slider 140; the clamping mechanism further comprises a main push rod 125 and a first spring 126, the first floating block 121 comprises a first base 1211 and a first boss 1212 connected with the first base 1211, the main push rod 125 is arranged in the end cover 150 in a sliding mode, the main push rod 125, the first base 1211 and the telescopic end of the first spring 126 are sequentially connected along the main push direction of the main push rod 125, the fixed end of the first spring 126 is connected with the end cover 150, and the first boss 1212 extends out of the placing platform through the first strip-shaped hole and slides along the length direction of the first strip-shaped hole; when the main push rod 125 is forced to move along the main push direction by applying force to the main push rod 125, the main push rod 125 pushes the first base 1211 to move and compress the first spring 126, and the first boss 1212 releases the member to be clamped along with the movement of the first base 1211 towards the direction away from the member to be clamped; when the force restricting the main push rod 125 is removed, the resilient force of the first spring 126 drives the first base 1211 to move in the direction opposite to the main push direction, and the first boss 1212 clamps the member to be clamped as the first base 1211 moves in the direction approaching the member to be clamped.

It should be noted that the number of the first bosses 1212 is not limited, and may be reasonably determined according to the size of the member to be clamped; for example, if the surface to be clamped of the member to be clamped is long, a plurality of first bosses 1212 may be arranged at intervals in the length extending direction of the surface to be clamped, so as to ensure the stability and accuracy of clamping and improve the positioning accuracy of the member to be clamped; if the surface to be clamped of the part to be clamped is short, only one first projection 1212 may be provided in the longitudinal extension of the surface to be clamped.

Optionally, the clamping mechanism further includes a second spring 127, the second slider 122 includes a second base 1221, a second boss 1222 and a cam 1223, the second boss 1222 and the cam 1223 are respectively disposed on two opposite sides of the second base 1221, a fixed end of the second spring 127 is connected to the end cap 150, a telescopic end of the second spring 127 is connected to the second base 1221, a side of the main push rod 125 close to the second base 1221 is provided with a slope 1254, the slope 1254 is tangent to the cam 1223, and the second boss 1222 extends from the second strip-shaped hole out of the placement platform and slides along a length direction of the second strip-shaped hole; when the main push rod 125 is forced to move in the main push direction, the main push rod 125 pushes the cam 1223 through the inclined surface 1254, and further pushes the second base 1221 to move and compress the second spring 127, and the second boss 1222 moves along with the second base 1221 in the direction away from the member to be clamped, so that the member to be clamped is released; when the force of the main push rod 125 is limited to be eliminated, the resilient force of the second spring 127 drives the second base 1221 to move towards the extending direction of the second spring 127, and the second boss 1222 moves towards the direction close to the member to be clamped along with the second base 1221, so as to clamp the member to be clamped.

It should be noted that the number of the second bosses 1222 is not limited, and can be determined reasonably according to the size of the member to be clamped; for example, if the surface to be clamped of the member to be clamped is long, a plurality of second bosses 1222 may be disposed at intervals in the length extending direction of the surface to be clamped, so as to ensure the stability and accuracy of clamping and improve the positioning accuracy of the member to be clamped; if the surface to be clamped of the part to be clamped is short, only one second projection 1222 can be provided in the longitudinal extension of the surface to be clamped.

Through the cooperation among the main push rod 125, the first spring 126, the first slider 121, the second spring 127 and the second slider 122, the main push rod 125 can simultaneously control the movement of the first slider 121 and the second slider 122 with the movement directions being vertical to each other, and when the acting force of the main push rod 125 disappears, the first slider 121 and the second slider 122 can automatically reset.

Fig. 4 is a schematic structural diagram of the main push rod 125 in the automatic clamping and positioning device 100 according to an embodiment of the present invention, please refer to fig. 4, in order to realize the clamping and releasing of the main push rod 125, optionally, a first step surface 1251, a second step surface 1252 and a third step surface 1253 are disposed on a side of the main push rod 125 away from the placing platform, a distance between the first step surface 1251, the second step surface 1252, the third step surface 1253 and a side of the main push rod 125 close to the placing platform increases in sequence along a main pushing direction of the main push rod 125, the self-locking slider 140 includes a third base 141, a third boss 142 and a third spring, a side of the third base 141 close to the placing platform is connected to the third boss 142, a side far from the placing platform is connected to the third spring, the third base 141 is further provided with a third through hole, a portion of the main push rod 125 provided with the first step surface 1251 and the second step surface 1252 passes through the third through hole and slides in the third through hole, the third boss 142 extends out of the placing platform from the second through hole and moves along the axial direction of the second through hole; when the main push rod 125 is forced to move along the main push direction, the second step surface 1252 of the main push rod 125 slides over the edge of the third through hole, so that the junction of the first step surface 1251 and the second step surface 1252 is clamped at two sides of the third through hole, namely, the first step surface 1251 and the second step surface are respectively positioned at two sides of the third through hole, and at the moment, the clamping mechanism loosens the to-be-clamped piece; when the third boss 142 is pressed down, the third through hole moves downward, the main push rod 125 moves in a direction opposite to the main push direction under the pushing of the first spring 126, the second step face 1252 of the main push rod 125 slides over the edge of the third through hole, the junction of the second step face 1252 and the third step face 1253 is clamped on two sides of the third through hole, and at the moment, the clamping mechanism loosens the to-be-clamped piece.

To further facilitate the clamping of the main push rod 125, optionally, the first step surface 1251 and the second step surface 1252 are connected by a first transition surface, which is perpendicular to the first step surface 1251 and the second step surface 1252; second step 1252 and third step 1253 are connected by a second transition surface that is perpendicular to second step 1252 and third step 1253.

Fig. 5 is a schematic structural diagram of the adsorption mechanism 130 in the automatic clamping and positioning device 100 according to an embodiment of the present invention, please refer to fig. 5, where the above-mentioned scheme shows the adsorption mechanism 130, and an implementable scheme of the adsorption mechanism 130 is given below, optionally, the adsorption mechanism 130 includes a fixing base, a magnet 131 and a telescopic component, one end of the fixing base is connected with the magnet 131, the other end of the fixing base is connected with the telescopic component, and the magnet 131 moves along the axial direction of the first through hole 111 under the driving of the telescopic component; the magnet 131 extends into the first through hole 111 and attracts the member to be clamped from below, further fixing the member to be clamped.

It should be noted that the number of the magnets 131 is not limited, and may be one or more, and the larger the number of the magnets 131, the larger the attraction force provided to the clamping member.

In order to save the space of the adsorption mechanism 130, a structure of a spring matched with a telescopic assembly is adopted, so that the magnet 131 can automatically reset by virtue of the spring, optionally, the automatic clamping and positioning device 100 further comprises a first fixing plate, the adsorption mechanism 130 further comprises a pull-down spring 132, one end of the pull-down spring 132 is connected with the fixing seat, the other end of the pull-down spring 132 is connected with the first fixing plate, and the pull-down spring 132 is in a compression state under the action of the telescopic assembly. When the clamping piece to be clamped does not need to be adsorbed, the fixed seat is pulled down by the telescopic assembly, the magnet 131 is far away from the clamping piece to be clamped, and the pull-down spring 132 is in a compressed state; when the clamping piece is treated in needs absorption, the telescopic component breaks away from the fixing base, and no longer to the fixing base application of force, the fixing base promotes the fixing base upward movement under the effect of pulldown spring 132 resilience force, and then drives magnet 131 and is close to treating the clamping piece.

Illustratively, the telescopic assembly is an air cylinder, a baffle is arranged at the telescopic end of the air cylinder, and the baffle is lapped with the fixed seat; when the cylinder contracts, the baffle moves downwards, and then the fixed seat is pressed to move downwards, so that the magnet 131 is far away from the to-be-clamped piece; when the cylinder extends, the baffle upward movement breaks away from with the fixing base, and the fixing base upward movement under the effect of pull-down spring 132 resilience force, and then drives magnet 131 and is close to and treats the clamping piece.

In order to make the movement of the first slider 121 more smooth and accurate, optionally, the clamping mechanism further includes a first guide pin 128, the first guide pin 128 is fixed on the end cap 150 and is arranged in parallel with the expansion direction of the first spring 126, and a first guide hole is provided on the first base 1211, and the first guide hole cooperates with the first guide pin 128 to make the first base 1211 slide along the first guide pin 128.

It should be noted that the number of the first guide pins 128 is not limited, and optionally, the number of the first guide pins 128 is two, and the two first guide pins 128 are symmetrically disposed on both sides of the first spring 126 and are matched with the first guide holes on the first base 1211 to guide the first base 1211.

In order to make the movement of the first slider 121 more stable and accurate, optionally, the clamping mechanism further includes a second guide pin 129, the second guide pin 129 is fixed on the end cap 150 and is arranged parallel to the extending and retracting direction of the second spring 127, and a second guide hole is arranged on the second base 1221, and the second guide hole is matched with the second guide pin 129 to enable the second base 1221 to slide along the second guide pin 129.

It should be noted that the number of the second guide pins 129 is not limited, and optionally, the number of the second guide pins 129 is two, and the two second guide pins 129 are symmetrically arranged on two sides of the second spring 127, and are matched with the second guide holes on the second base 1221 to guide the second base 1221.

Optionally, a fourth through hole 1255 is provided on the third step face 1253 of the main push rod 125, the adsorption mechanism 130 passes through the fourth through hole 1255 and moves along the axial direction of the fourth through hole 1255, and the fourth through hole 1255 provides a space for the movement of the adsorption mechanism 130, so as to avoid interference between the clamping mechanism and the adsorption mechanism 130.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic clamping and positioning device is characterized by comprising a placing platform, a clamping mechanism, an adsorption mechanism and a self-locking floating block, the clamping mechanism comprises a first floating block, a second floating block, a first positioning piece and a second positioning piece which are arranged on the placing platform, the first positioning piece and the second positioning piece are positioned at two adjacent sides of the placing platform, the first floating block and the second floating block are positioned at the other two adjacent sides of the placing platform, the first floating block is arranged opposite to the first positioning piece, the second floating block is arranged opposite to the second positioning piece, the placing platform is provided with a first through hole and a second through hole, the adsorption mechanism moves along the axial direction of the first through hole to adsorb the part to be clamped, the self-locking floating block moves along the axial direction of the second through hole so as to respectively control the first floating block and the second floating block to move towards the to-be-clamped piece.

2. The automatic clamping and positioning device as claimed in claim 1, wherein the placing platform is further provided with a first strip-shaped hole and a second strip-shaped hole, the length directions of the first strip-shaped hole and the second strip-shaped hole are perpendicular to each other, the first floating block slides along the length direction of the first strip-shaped hole, and the second floating block slides along the length direction of the second strip-shaped hole.

3. The automatic clamping and positioning device according to claim 2, further comprising an end cover connected to a face opposite to the bearing face of the placing platform, wherein the clamping mechanism further comprises a main push rod and a first spring, the first slider comprises a first base and a first boss connected to the first base, the main push rod is slidably disposed in the end cover, the main push rod, the first base and a telescopic end of the first spring are sequentially connected in a main pushing direction of the main push rod, a fixed end of the first spring is connected to the end cover, and the first boss is extended out of the placing platform through the first strip-shaped hole and slides in a length direction of the first strip-shaped hole.

4. The automatic clamping and positioning device according to claim 3, wherein the clamping mechanism further comprises a second spring, the second slider comprises a second base, a second boss and a cam, the second boss and the cam are respectively arranged on two opposite sides of the second base, a fixed end of the second spring is connected with the end cover, a telescopic end of the second spring is connected with the second base, an inclined plane is arranged on one side of the main push rod close to the second base, the inclined plane is tangent to the cam, and the second boss extends out of the placing platform through the second strip-shaped hole and slides along the length direction of the second strip-shaped hole.

5. The automatic clamping and positioning device as claimed in claim 4, wherein a first step surface, a second step surface and a third step surface are provided on a side of the main push rod away from the placement platform, the first step surface, the second step surface, the third step surface and a side of the main push rod close to the placement platform are sequentially increased in distance along a main pushing direction of the main push rod, the self-locking slider comprises a third base, a third boss and a third spring, a side of the third base close to the placement platform is connected with the third boss, a side of the third base far from the placement platform is connected with the third spring, the third base is further provided with a third through hole, and a portion of the main push rod provided with the first step surface and the second step surface passes through the third through hole and slides in the third through hole, the third boss extends out of the placing platform from the second through hole and moves along the axial direction of the second through hole.

6. The automatic clamping and positioning device according to claim 1, wherein the adsorption mechanism comprises a fixed seat, a magnet and a telescopic assembly, one end of the fixed seat is connected with the magnet, the other end of the fixed seat is connected with the telescopic assembly, and the magnet moves along the axial direction of the first through hole under the driving of the telescopic assembly.

7. The automatic clamping and positioning device according to claim 6, further comprising a first fixing plate, wherein the suction mechanism further comprises a pull-down spring, one end of the pull-down spring is connected with the fixing seat, the other end of the pull-down spring is connected with the first fixing plate, and the pull-down spring is in a compressed state under the action of the telescopic assembly.

8. The automatic clamping and positioning device as claimed in claim 3, wherein the clamping mechanism further comprises a first guide pin fixed on the end cap and parallel to the extension direction of the first spring, and the first base is provided with a first guide hole, and the first guide hole is engaged with the first guide pin so as to enable the first base to slide along the first guide pin.

9. The automatic clamping and positioning device as claimed in claim 4, wherein the clamping mechanism further comprises a second guide pin fixed on the end cap and parallel to the extension direction of the second spring, and a second guide hole is formed on the second base, and the second guide hole is engaged with the second guide pin so as to enable the second base to slide along the second guide pin.

10. The automatic clamping and positioning device as claimed in claim 5, wherein a fourth through hole is formed on the third step surface, and the adsorption mechanism passes through the fourth through hole and moves along the axial direction of the fourth through hole.