Automatic clamping and positioning device

Abstract

The present invention discloses an automatic clamping and positioning device, which relates to the field of clamp technology. The automatic clamping and positioning device includes a placement platform, a clamping mechanism, an adsorption mechanism and a self-locking floating block. The clamping mechanism includes a first floating block, a second floating block and a first positioning member and a second positioning member arranged on the placement platform. The first positioning member and the second positioning member are located on two adjacent sides of the placement platform, and the first floating block and the second floating block are located on the other adjacent sides of the placement platform. The first floating block is arranged opposite to the first positioning member, and the second floating block is arranged opposite to the second positioning member. A first through hole and a second through hole are provided on the placement platform. The adsorption mechanism moves along the axial direction of the first through hole to adsorb the part to be clamped, and the self-locking floating block moves along the axial direction of the second through hole to respectively control the first floating block and the second floating block to move toward the part to be clamped. The present application has a simple structure, low cost, and high positioning accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of clamps, and in particular to an automatic clamping and positioning device. Background Art

[0002] A clamping and positioning device is a device used to fix the object to be processed in the mechanical manufacturing process so that it occupies the correct position for construction or inspection. In the process of producing or inspecting precision mechanical instruments, it is often necessary to use a clamping and positioning device to fix the position of the precision mechanical instruments. The clamping devices for precision mechanical instruments in the prior art are expensive and have low precision, and cannot meet the requirements of high-precision work. Summary of the invention

[0003] The object of the present invention is to provide an automatic clamping and positioning device to solve the technical problems of the clamping and positioning devices in the prior art being expensive and having low precision.

[0004] The embodiment of the present invention is achieved as follows:

[0005] An embodiment of the present invention provides an automatic clamping and positioning device, including a placement platform, a clamping mechanism, an adsorption mechanism and a self-locking floating block, the clamping mechanism including a first floating block, a second floating block and a first positioning member and a second positioning member arranged on the placement platform, the first positioning member and the second positioning member are located on two adjacent sides of the placement platform, the first floating block and the second floating block are located on the other adjacent sides of the placement platform, the first floating block is arranged opposite to the first positioning member, the second floating block is arranged opposite to the second positioning member, a first through hole and a second through hole are provided on the placement platform, the adsorption mechanism moves along the axial direction of the first through hole to adsorb the part to be clamped, and the self-locking floating block moves along the axial direction of the second through hole to respectively control the first floating block and the second floating block to move toward the part to be clamped.

[0006] Optionally, the placement platform is further provided with a first strip hole and a second strip hole, the length directions of the first strip hole and the second strip hole are perpendicular to each other, the first floating block slides along the length direction of the first strip hole, and the second floating block slides along the length direction of the second strip hole.

[0007] Optionally, the automatic clamping and positioning device also includes an end cover connected to a side opposite to the bearing surface of the placement platform, the clamping mechanism also includes a main push rod and a first spring, the first floating block includes a first base and a first boss connected to the first base, the main push rod is slidably arranged in the end cover, the main push rod, the first base, and the telescopic ends of the first spring are connected in sequence along the main pushing direction of the main push rod, the fixed end of the first spring is connected to the end cover, and the first boss extends out of the placement platform from the first strip hole and slides along the length direction of the first strip hole.

[0008] Optionally, the clamping mechanism also includes a second spring, the second floating block includes 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, the fixed end of the second spring is connected to the end cover, and the telescopic end is connected to the second base, and a slope is provided on the side of the main push rod close to the second base, the slope is tangent to the cam, and the second boss extends out of the second strip hole to be placed on the platform and slides along the length direction of the second strip hole.

[0009] Optionally, a first step surface, a second step surface and a third step surface parallel to each other are provided on the side of the main push rod away from the placement platform, and the distances between the first step surface, the second step surface, the third step surface and the side of the main push rod close to the placement platform increase successively along the main pushing direction of the main push rod. The self-locking floating block includes a third base, a third boss and a third spring. The side of the third base close to the placement platform is connected to the third boss, and the side away from the placement platform is connected to the third spring. A third through hole is also provided on the third base. Parts of the main push rod with the first step surface and the second step surface pass through the third through hole and slide in the third through hole. The third boss extends out of the second through hole from the placement platform and moves along the axial direction of the second through hole.

[0010] Optionally, the adsorption mechanism includes a fixed seat, a magnet and a telescopic component, one end of the fixed seat is connected to the magnet, and the other end is connected to the telescopic component, and the magnet moves along the axial direction of the first through hole under the drive of the telescopic component.

[0011] Optionally, the above-mentioned automatic clamping and positioning device also includes a first fixed plate, and the adsorption mechanism also includes a pull-down spring, one end of the pull-down spring is connected to the fixed seat, and the other end is connected to the first fixed plate, and the pull-down spring is in a compressed state under the action of the telescopic component.

[0012] Optionally, the clamping mechanism further includes a first guide pin, which is fixed on the end cover and parallel to the extension and contraction direction of the first spring. A first guide hole is provided on the first base, and the first guide hole cooperates with the first guide pin to enable the first base to slide along the first guide pin.

[0013] Optionally, the clamping mechanism further includes a second guide pin, which is fixed on the end cover and parallel to the extension and contraction direction of the second spring. A second guide hole is provided on the second base, and the second guide hole cooperates with the second guide pin to enable the second base to slide along the second guide pin.

[0014] Optionally, a fourth through hole is provided 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.

[0015] The beneficial effects of the embodiments of the present invention include:

[0016] The automatic clamping and positioning device provided in the embodiment of the present invention comprises a placing platform, a clamping mechanism, an adsorption mechanism and a self-locking floating block, wherein the placing platform is used to place a piece to be clamped, the clamping mechanism is used to clamp the piece to be clamped, the adsorption mechanism adsorbs the piece to be clamped to further fix the piece to be clamped, and the self-locking floating block is used to control the clamping mechanism to clamp the piece to be clamped; the clamping mechanism comprises a first floating block, a second floating block, and a first positioning member and a second positioning member arranged on the placing platform, the first positioning member and the second positioning member are located on two adjacent sides of the placing platform, the first floating block and the second floating block are located on the other adjacent sides of the placing platform, the first positioning member and the second positioning member are used to limit the two sides of the piece to be clamped respectively, so that the piece to be clamped cannot move in the direction toward the first positioning member and the second positioning member; The first floating block is arranged opposite to the first positioning member, and the first floating block can move toward the part to be clamped, and cooperate with the first positioning member to clamp the opposite side of the part to be clamped; the second floating block is arranged opposite to the second positioning member, and the second floating block also moves toward the part to be clamped, and cooperates with the second positioning member to clamp the other opposite side of the part to be clamped; the placement 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 part to be clamped, so as to realize the adsorption positioning of the part to be clamped in the vertical direction; the self-locking floating block moves along the axial direction of the second through hole to respectively control the first floating block and the second floating block to move toward the part to be clamped, and the first floating block, the second floating block, the first positioning member and the second positioning member cooperate with each other to enclose the part to be clamped, so as to realize the clamping positioning of the part to be clamped in the horizontal direction. The above automatic clamping and positioning device has a simple structure and low cost, and achieves a high positioning accuracy through the mutual cooperation of the clamping mechanism and the adsorption mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 One of the structural schematic diagrams of the automatic clamping and positioning device provided in an embodiment of the present invention;

[0019] Figure 2 A second structural schematic diagram of the automatic clamping and positioning device provided in an embodiment of the present invention;

[0020] Figure 3 A third structural schematic diagram of the automatic clamping and positioning device provided in an embodiment of the present invention;

[0021] Figure 4 A schematic diagram of the structure of a main push rod in an automatic clamping and positioning device provided in an embodiment of the present invention;

[0022] Figure 5 A schematic diagram of the structure of an adsorption mechanism in an automatic clamping and positioning device provided in an embodiment of the present invention.

[0023] Icons: 100-automatic clamping and positioning device; 110-placing platform; 111-first through hole; 121-first floating block; 1211-first base; 1212-first boss; 122-second floating block; 1221-second base; 1222-second boss; 1223-cam; 123-first positioning member; 124-second positioning member; 125-main push rod; 1251-first step surface; 1252-second step surface; 1253-third step surface; 1254-inclined surface; 1255-fourth through hole; 126-first spring; 127-second spring; 128-first guide pin; 129-second guide pin; 130-adsorption mechanism; 131-magnet; 132-pull-down spring; 140-self-locking floating block; 141-third base; 142-third boss; 150-end cover. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0027] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. The terms "set", "install", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Figure 1 This is a schematic diagram of the structure of the automatic clamping and positioning device 100 provided in an embodiment of the present invention. Figure 1The present embodiment provides an automatic clamping and positioning device 100, comprising a placement platform 110, a clamping mechanism, an adsorption mechanism 130 and a self-locking floating block 140. The placement platform 110 is used to place a piece to be clamped, the clamping mechanism is used to clamp the piece to be clamped, the adsorption mechanism 130 adsorbs the piece to be clamped to further fix the piece to be clamped, and the self-locking floating block 140 is used to control the clamping mechanism to clamp the piece to be clamped; the clamping mechanism comprises a first floating block 121, a second floating block 122, and a first positioning member 123 and a second positioning member 124 arranged on the placement platform 110, the first positioning member 123 and the second positioning member 124 are located on two adjacent sides of the placement platform 110, the first floating block 121 and the second floating block 122 are located on the other adjacent sides of the placement platform 110, the first positioning member 123 and the second positioning member 124 are used to limit the two sides of the piece to be clamped respectively, so that the piece to be clamped cannot be moved along the direction toward the first positioning member 123 and the second positioning member 124 The first floating block 121 is arranged opposite to the first positioning member 123, and the first floating block 121 can move toward the piece to be clamped, and cooperate with the first positioning member 123 to clamp the opposite side of the piece to be clamped; the second floating block 122 is arranged opposite to the second positioning member 124, and the second floating block 122 also moves toward the piece to be clamped, and cooperates with the second positioning member 124 to clamp the other opposite side of the piece to be clamped; the placement 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 the piece to be clamped, so as to realize the adsorption positioning of the piece to be clamped in the vertical direction; 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 toward the piece to be clamped, and the first floating block 121, the second floating block 122, the first positioning member 123 and the second positioning member 124 cooperate with each other to enclose the piece to be clamped, so as to realize the clamping positioning of the piece to be clamped in the horizontal direction. The automatic clamping and positioning device 100 has a simple structure and low cost, and achieves a high positioning accuracy through the cooperation between the clamping mechanism and the adsorption mechanism 130 .

[0029] It should be noted that, first, a clamping mechanism and an adsorption mechanism 130 are defined as a group of working units, and the number of working units and self-locking floating blocks 140 is not limited, and can be one or more; for example, the automatic clamping and positioning device 100 may include multiple groups of working units, each of which corresponds to a self-locking floating block 140, and the multiple groups of working units do not interfere with each other, work independently, and are controlled by their corresponding self-locking floating blocks 140; or, the automatic clamping and positioning device 100 may include multiple groups of working units, and the multiple groups of working units are uniformly controlled by a self-locking floating block 140, and the multiple groups of working units simultaneously clamp multiple parts to be clamped; multiple groups of working units enable the automatic clamping and positioning device 100 to have multiple clamping stations, and multiple parts to be clamped can be clamped, which effectively improves the working efficiency of the automatic clamping and positioning device 100. Of course, the automatic clamping and positioning device 100 may also include only one group of working units and one self-locking floating block 140, in which case the automatic clamping and positioning device 100 has only one clamping station.

[0030] Second, in each group of working units, the number of first positioning members 123 and second positioning members 124 is not limited and can be reasonably determined according to the size of the workpiece to be clamped; for example, if the clamping surface of the workpiece to be clamped is longer, multiple first positioning members 123 or multiple second positioning members 124 can be arranged at intervals in the length extension direction of the clamping surface to ensure the stability and accuracy of clamping and improve the positioning accuracy of the workpiece to be clamped; if the number of first positioning members 123 or second positioning members 124 is multiple, the multiple first positioning members 123 or multiple second positioning members 124 can be distributed along a straight line; if the clamping surface of the workpiece to be clamped is shorter, only one first positioning member 123 or second positioning member 124 can be arranged in the length extension direction of the clamping surface.

[0031] Third, since the first through holes 111 are used for the adsorption mechanism 130 to pass through, and the second through holes are used for the self-locking floating blocks 140 to pass through, 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 floating blocks 140 .

[0032] The above scheme provides a clamping mechanism. The following is an implementable setting scheme for the first floating block 121 and the second floating block 122 in the above clamping mechanism. Optionally, a first strip hole and a second strip hole are further provided on the placement platform 110. The length directions of the first strip hole and the second strip hole are perpendicular to each other. The first floating block 121 slides along the length direction of the first strip hole, and the second floating block 122 slides along the length direction of the second strip hole. The first floating block 121 extends out of the surface of the placement platform 110 through the first strip hole, and slides in the first strip hole to clamp or release one side of the part to be clamped. The second floating block 122 extends out of the surface of the placement platform 110 through the second strip hole, and slides in the second strip hole to clamp or release the other side of the part to be clamped. The length directions of the first strip hole and the second strip hole are perpendicular to each other, so that the first floating block 121 and the second floating block 122 simultaneously clamp the two perpendicular sides of the part to be clamped.

[0033] Figure 2 The second structural diagram of the automatic clamping and positioning device 100 provided in an embodiment of the present invention is as follows: Figure 3 The third structural diagram of the automatic clamping and positioning device 100 provided in the embodiment of the present invention is shown in FIG. Figure 2 and Figure 3 Optionally, the automatic clamping and positioning device 100 also includes an end cover 150 connected to a side opposite to the bearing surface of the placement platform, and the end cover 150 is used to set the clamping mechanism, the adsorption mechanism 130 and the self-locking floating block 140; the clamping mechanism also includes a main push rod 125 and a first spring 126, the first floating block 121 includes a first base 1211 and a first boss 1212 connected to the first base 1211, the main push rod 125 is slidably arranged in the end cover 150, the main push rod 125, the first base 1211, and the telescopic ends of the first spring 126 are connected in sequence along the main pushing direction of the main push rod 125, the fixed end of the first spring 126 is connected to the end cover 150, and the first The boss 1212 extends out of the first strip hole to form a placement platform and slides along the length direction of the first strip hole; when force is applied to the main push rod 125 to make the main push rod 125 move along the main push direction, the main push rod 125 pushes the first base 1211 to move and compresses the first spring 126, and the first boss 1212 moves along with the first base 1211 in a direction away from the part to be clamped, thereby loosening the part to be clamped; when the force restricting the main push rod 125 disappears, the rebound force of the first spring 126 drives the first base 1211 to move in a direction opposite to the main push direction, and the first boss 1212 moves along with the first base 1211 in a direction close to the part to be clamped, thereby clamping the part to be clamped.

[0034] It should be noted that the number of first bosses 1212 is not limited and can be reasonably determined according to the size of the part to be clamped; for example, if the clamping surface of the part to be clamped is longer, multiple first bosses 1212 can be arranged at intervals in the length extension direction of the clamping surface to ensure the stability and accuracy of clamping and improve the positioning accuracy of the part to be clamped; if the clamping surface of the part to be clamped is shorter, only one first boss 1212 can be arranged in the length extension direction of the clamping surface.

[0035] Optionally, the clamping mechanism further includes a second spring 127, the second floating block 122 includes a second base 1221, a second boss 1222 and a cam 1223, the second boss 1222 and the cam 1223 are respectively arranged on opposite sides of the second base 1221, the fixed end of the second spring 127 is connected to the end cover 150, and the telescopic end is connected to the second base 1221, the main push rod 125 is provided with an inclined surface 1254 on the side close to the second base 1221, the inclined surface 1254 is tangent to the cam 1223, the second boss 1222 extends out of the second strip hole to place the platform and slides along the length direction of the second strip hole; when the second spring 127 is in contact with the second base 1221, the second boss 1222 is placed on the platform and slides along the length direction of the second strip hole. When the main push rod 125 applies force to make the main push rod 125 move along the main pushing direction, the main push rod 125 pushes the cam 1223 through the inclined surface 1254, thereby pushing the second base 1221 to move and compressing the second spring 127, and the second boss 1222 moves along with the second base 1221 in the direction away from the part to be clamped, thereby loosening the part to be clamped; when the force restricting the main push rod 125 disappears, the rebound force of the second spring 127 drives the second base 1221 to move in the extension direction of the second spring 127, and the second boss 1222 moves along with the second base 1221 in the direction close to the part to be clamped, thereby clamping the part to be clamped.

[0036] It should be noted that the number of second bosses 1222 is not limited and can be reasonably determined according to the size of the part to be clamped; for example, if the clamping surface of the part to be clamped is longer, multiple second bosses 1222 can be arranged at intervals in the length extension direction of the clamping surface to ensure the stability and accuracy of clamping and improve the positioning accuracy of the part to be clamped; if the clamping surface of the part to be clamped is shorter, only one second boss 1222 can be arranged in the length extension direction of the clamping surface.

[0037] Through the cooperation among the main push rod 125, the first spring 126, the first floating block 121, the second spring 127 and the second floating block 122, the main push rod 125 can simultaneously control the movements of the first floating block 121 and the second floating block 122 whose movement directions are perpendicular to each other, and when the force of the main push rod 125 disappears, the first floating block 121 and the second floating block 122 can automatically reset.

[0038] Figure 4For a structural diagram of the main push rod 125 in the automatic clamping and positioning device 100 provided in an embodiment of the present invention, please refer to Figure 4 In order to achieve the clamping and loosening of the main push rod 125, optionally, a first step surface 1251, a second step surface 1252 and a third step surface 1253 are provided on the side of the main push rod 125 away from the placement platform, and the distances between the first step surface 1251, the second step surface 1252, the third step surface 1253 and the side of the main push rod 125 close to the placement platform increase successively along the main pushing direction of the main push rod 125. The self-locking floating block 140 includes a third base 141, a third boss 142 and a third spring. The side of the third base 141 close to the placement platform is connected to the third boss 142, and the side away from the placement platform is connected to the third spring. A third through hole is also provided on the third base 141. The main push rod 125 is provided with parts of the first step surface 1251 and the second step surface 1252 passing through the third through hole and sliding in the third through hole. The third boss 142 The placement platform extends out from the second through hole and moves along the axial direction of the second through hole; when force is applied to the main push rod 125 to make the main push rod 125 move along the main pushing direction, the second step surface 1252 of the main push rod 125 slides over the edge of the third through hole, so that the intersection of the first step surface 1251 and the second step surface 1252 is clamped on both sides of the third through hole, that is, the first step surface 1251 and the second step surface are respectively located on both sides of the third through hole, at this time, the clamping mechanism releases the part to be clamped; when the third boss 142 is pressed, the third through hole moves downward, and under the push of the first spring 126, the main push rod 125 moves in the direction opposite to the main pushing direction, and the second step surface 1252 of the main push rod 125 slides over the edge of the third through hole, so that the intersection of the second step surface 1252 and the third step surface 1253 is clamped on both sides of the third through hole, at this time, the clamping mechanism releases the part to be clamped.

[0039] In order 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, and the first transition surface is perpendicular to the first step surface 1251 and the second step surface 1252; the second step surface 1252 and the third step surface 1253 are connected by a second transition surface, and the second transition surface is perpendicular to the second step surface 1252 and the third step surface 1253.

[0040] Figure 5 For a structural diagram of the adsorption mechanism 130 in the automatic clamping and positioning device 100 provided in an embodiment of the present invention, please refer to Figure 5The above scheme provides an adsorption mechanism 130. An implementable scheme of the above adsorption mechanism 130 is provided below. Optionally, the adsorption mechanism 130 includes a fixed seat, a magnet 131 and a telescopic component. One end of the fixed seat is connected to the magnet 131 and the other end is connected to the telescopic component. The magnet 131 moves along the axial direction of the first through hole 111 under the drive of the telescopic component; the magnet 131 extends into the first through hole 111 and adsorbs the part to be clamped from the bottom to further fix the part to be clamped.

[0041] It should be noted that the number of the magnets 131 is not limited and can be one or more. The greater the number of the magnets 131 , the greater the adsorption force provided to the clamping member.

[0042] In order to save space for the adsorption mechanism 130, a spring is used in combination with a telescopic component so that the magnet 131 can automatically reset itself by means of the spring. Optionally, the automatic clamping and positioning device 100 further includes a first fixed plate, and the adsorption mechanism 130 further includes a pull-down spring 132. One end of the pull-down spring 132 is connected to the fixed seat and the other end is connected to the first fixed plate. The pull-down spring 132 is in a compressed state under the action of the telescopic component. When it is not necessary to adsorb the part to be clamped, the telescopic component pulls the fixed seat down to move the magnet 131 away from the part to be clamped. At this time, the pull-down spring 132 is in a compressed state. When it is necessary to adsorb the part to be clamped, the telescopic component is separated from the fixed seat and no force is applied to the fixed seat. Under the action of the rebound force of the pull-down spring 132, the fixed seat is pushed upward, thereby driving the magnet 131 close to the part to be clamped.

[0043] For example, the telescopic component is a cylinder, and a baffle is provided at the telescopic end of the cylinder, which overlaps the fixed seat; when the cylinder contracts, the baffle moves downward, thereby pressing the fixed seat to move downward, so that the magnet 131 is away from the clamped part; when the cylinder extends, the baffle moves upward and disengages from the fixed seat, and the fixed seat moves upward under the action of the rebound force of the pull-down spring 132, thereby driving the magnet 131 close to the clamped part.

[0044] In order to make the movement of the first floating block 121 more stable and accurate, the clamping mechanism optionally also includes a first guide pin 128, which is fixed on the end cover 150 and arranged parallel to the extension and contraction direction of the first spring 126. A first guide hole is provided on the first base 1211, and the first guide hole cooperates with the first guide pin 128 to enable the first base 1211 to slide along the first guide pin 128.

[0045] It should be noted that the number of the first guide pins 128 is not limited. Optionally, there are two first guide pins 128 symmetrically arranged on both sides of the first spring 126 , cooperating with the first guide holes on the first base 1211 to guide the first base 1211 .

[0046] In order to make the movement of the first floating block 121 more stable and accurate, the clamping mechanism optionally includes a second guide pin 129, which is fixed on the end cover 150 and arranged parallel to the extension and contraction direction of the second spring 127. A second guide hole is provided on the second base 1221, and the second guide hole cooperates with the second guide pin 129 to enable the second base 1221 to slide along the second guide pin 129.

[0047] It should be noted that the number of the second guide pins 129 is not limited. Optionally, the number of the second guide pins 129 is two, which are symmetrically arranged on both sides of the second spring 127 and cooperate with the second guide holes on the second base 1221 to guide the second base 1221.

[0048] Optionally, a fourth through hole 1255 is provided on the third step surface 1253 of the main push rod 125, and the adsorption mechanism 130 passes through the fourth through hole 1255 and moves along the axial direction of the fourth through hole 1255. The setting of the fourth through hole 1255 provides space for the movement of the adsorption mechanism 130, thereby avoiding interference between the clamping mechanism and the adsorption mechanism 130.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic clamping and positioning device, characterized in that: The invention comprises a placement platform, a clamping mechanism, an adsorption mechanism and a self-locking floating block, wherein the clamping mechanism comprises a first floating block, a second floating block and a first positioning member and a second positioning member arranged on the placement platform, wherein the first positioning member and the second positioning member are located on two adjacent sides of the placement platform, and the first floating block and the second floating block are located on the other two adjacent sides of the placement platform, the first floating block is arranged opposite to the first positioning member, and the second floating block is arranged opposite to the second positioning member, and a first through hole and a second through hole are arranged on the placement platform, the adsorption mechanism moves along the axial direction of the first through hole to adsorb the member to be clamped, and the self-locking floating block moves along the axial direction of the second through hole to respectively control the first floating block and the second floating block to move toward the member to be clamped; The placing platform is further provided with a first strip hole and a second strip hole, the length directions of the first strip hole and the second strip hole are perpendicular to each other, the first floating block slides along the length direction of the first strip hole, and the second floating block slides along the length direction of the second strip hole; It also includes an end cap connected to a side opposite to the bearing surface of the placement platform, the clamping mechanism also includes a main push rod and a first spring, the first floating block includes a first base and a first boss connected to the first base, the main push rod is slidably arranged in the end cap, 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 to the end cap, and the first boss extends out of the placement platform from the first strip hole and slides along the length direction of the first strip hole; The clamping mechanism also includes a second spring, the second floating block includes 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, the fixed end of the second spring is connected to the end cover, and the telescopic end is connected to the second base, the main push rod is provided with an inclined surface on one side close to the second base, the inclined surface is tangent to the cam, and the second boss extends out of the second strip hole to the placement platform and slides along the length direction of the second strip hole; The main push rod is provided with a first step surface, a second step surface and a third step surface parallel to each other on a side away from the placement platform, and the distances between 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 increase successively along the main pushing direction of the main push rod. The self-locking floating block comprises a third base, a third boss and a third spring, the side of the third base close to the placement platform is connected to the third boss, and the side away from the placement platform is connected to the third spring, and a third through hole is also provided on the third base, and parts of the main push rod provided with the first step surface and the second step surface pass through the third through hole and slide in the third through hole, and the third boss extends out of the placement platform from the second through hole and moves along the axial direction of the second through hole; The first step surface and the second step surface are connected by a first transition surface, and the first transition surface is perpendicular to the first step surface and the second step surface; the second step surface and the third step surface are connected by a second transition surface, and the second transition surface is perpendicular to the second step surface and the third step surface.

2. The automatic clamping and positioning device according to claim 1, characterized in that: The adsorption mechanism includes a fixed seat, a magnet and a telescopic component. One end of the fixed seat is connected to the magnet, and the other end is connected to the telescopic component. The magnet moves along the axial direction of the first through hole under the drive of the telescopic component.

3. The automatic clamping and positioning device according to claim 2, characterized in that: It also includes a first fixed plate, and the adsorption mechanism also includes a pull-down spring, one end of the pull-down spring is connected to the fixed seat, and the other end is connected to the first fixed plate, and the pull-down spring is in a compressed state under the action of the telescopic component.

4. The automatic clamping and positioning device according to claim 1, characterized in that: The clamping mechanism also includes a first guide pin, which is fixed on the end cover and parallel to the expansion and contraction direction of the first spring. The first base is provided with a first guide hole, which cooperates with the first guide pin to enable the first base to slide along the first guide pin.

5. The automatic clamping and positioning device according to claim 1, characterized in that: The clamping mechanism also includes a second guide pin, which is fixed on the end cover and parallel to the expansion and contraction direction of the second spring. A second guide hole is provided on the second base, and the second guide hole cooperates with the second guide pin to enable the second base to slide along the second guide pin.

6. The automatic clamping and positioning device according to claim 1, characterized in that: A fourth through hole is disposed 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.

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