CN220093089U - Chuck structure - Google Patents

Abstract

The utility model relates to the field of clamping equipment, and discloses a chuck structure which comprises a mounting seat, a claw driving device, a transmission rod, a connecting seat, a disk body and a claw assembly arranged on the disk body, wherein the clamping seat is provided with a clamping groove; the mounting seat, the connecting seat and the tray body are sequentially arranged, the connecting seat is fixed on the mounting seat, and the tray body is fixed on one side of the connecting seat far away from the mounting seat; the chuck structure further comprises a claw transmission structure, the claw transmission structure is positioned between the mounting seat and the disc body, the claw assembly is in transmission connection with the claw transmission structure, the claw driving device is arranged on the mounting seat, one end of the transmission rod is in transmission connection with the claw driving device, and the other end of the transmission rod is in transmission connection with the claw transmission structure so as to drive the claw assembly to open or close. The beneficial effects are that: the tray body and the mounting seat are fixed through the connecting seat, so that the connection relation of the claw-claw transmission structure-transmission rod can be adjusted, the mounting and the adjustment are more convenient, and the production efficiency is improved.

Description

Chuck structure

Technical Field

The utility model relates to the technical field of clamping equipment, in particular to a chuck structure.

Background

Currently, there is a chuck structure in the market, which includes a housing, an air cylinder, a driving rod, a disc body, and a claw on the disc body, where the air cylinder drives the driving rod to move in an axial direction so as to drive the claw on the disc body to open or close. In this chuck structure, the disk body is mounted on the housing. Before the tray body is arranged on the shell, the connection relation between the clamping jaw and the transmission rod is adjusted, and then after the tray body is fixed on the shell, whether the connection between the clamping jaw and the transmission rod meets the requirement can be detected and determined. However, after the tray body is mounted on the housing, the connection position between the driving rod and the claw is located at the inner side of the housing, and if the connection between the driving rod and the claw is to be readjusted, the housing needs to be detached first, which is very inconvenient. To the end, in order to facilitate the adjustment of the connection between the driving rod and the jaws, a chuck with a plurality of through holes in the housing has been developed, through which the technician can extend tools such as wrenches into the housing, so as to adjust the connection between the driving rod and the jaws. However, the provision of a plurality of through holes in the housing greatly affects the aesthetic appearance of the chuck and is also disadvantageous in protecting the internal structure of the chuck.

Disclosure of Invention

The utility model mainly aims to provide a chuck structure, and aims to solve the technical problem that in the prior art, the connection between a transmission rod and a claw is inconvenient to adjust.

In order to achieve the above objective, the present utility model provides a chuck structure, which comprises a mounting seat, a claw driving device, a transmission rod, a connecting seat, a disk body and a claw assembly arranged on the disk body; the mounting seat, the connecting seat and the tray body are sequentially arranged, the connecting seat is fixed on the mounting seat, and the tray body is fixed on one side of the connecting seat far away from the mounting seat; the chuck structure further comprises a claw transmission structure, the claw transmission structure is positioned between the mounting seat and the disc body, the claw assembly is in transmission connection with the claw transmission structure, the claw driving device is arranged on the mounting seat, one end of the transmission rod is in transmission connection with the claw driving device, and the other end of the transmission rod is in transmission connection with the claw transmission structure so as to drive the claw assembly to open or close.

The beneficial effects of the utility model are as follows: the tray body and the mounting seat are fixed through the connecting seat, so that the connection relation of the claw-claw transmission structure and the transmission rod can be adjusted, the shell is not required to be detached once every time as before, the shell can be assembled after being completely adjusted, the mounting and the adjustment are more convenient, and the production efficiency is improved.

Preferably, one side of the connecting seat, which is close to the tray body, is provided with a plurality of first mounting holes, the tray body is provided with a plurality of second mounting holes, first connecting pieces penetrate through the first mounting holes and the second mounting holes, and the first mounting holes, the second mounting holes and the first connecting pieces are used for fixing the tray body on the connecting seat; one side that the connecting seat is close to the mount pad is equipped with a plurality of third mounting holes, and the one end that the mount pad is close to the connecting seat is equipped with a plurality of fourth mounting holes, wears to be equipped with the second connecting piece in third mounting hole and the fourth mounting hole, and third mounting hole, fourth mounting hole and second connecting piece are used for fixing the connecting seat on the mount pad.

Preferably, a shell is arranged between the tray body and the mounting seat, and the connecting seat is positioned on the inner side of the shell. The casing is used for protecting the connecting seat and the structure on the connecting seat, and simultaneously, the whole appearance of the chuck structure is more attractive.

Preferably, the claw driving device is arranged on one side of the mounting seat far away from the connecting seat, a cavity through which the transmission rod passes is arranged in the mounting seat, one end of the transmission rod is in transmission connection with the claw driving device, and the other end of the transmission rod passes through the cavity and is in transmission connection with the claw transmission structure.

Preferably, the jaw assembly comprises two jaws, a transmission groove is formed in each jaw, an opening of the transmission groove faces to the jaw transmission structure, and each jaw is correspondingly provided with a jaw transmission structure and a transmission rod; the jaw transmission structure comprises a swing arm structure, wherein the swing arm structure comprises a first swing arm rod and a second swing arm rod which are arranged at an angle; one end and the second swing arm pole fixed connection of first swing arm pole, the other end rotates with the transfer line to be connected, the one end and the first swing arm pole fixed connection of second swing arm pole, the other end stretches into the transmission inslot, the junction of first swing arm pole and second swing arm pole is equipped with the hinge hole, the axis of hinge hole and transfer line and the axis of extension direction, the extension direction and the axis of transfer line of second swing arm pole of first swing arm pole all perpendicular to, swing arm structure passes through the hinge hole and connects the seat hinge for: when the transmission rod moves along the axis direction of the transmission rod, the swing arm structure can drive the clamping jaws to move along the direction perpendicular to the axis of the transmission rod, so that two clamping jaws in the clamping jaw assembly can be close to or far away from each other, and the opening or closing of the clamping jaw assembly is realized.

Preferably, the jaw transmission structure comprises a connecting block, the connecting block is fixed at one end of the transmission rod, which is close to the first swing arm rod, and the first swing arm rod is rotationally connected to the connecting block; an adjusting structure is arranged between the connecting block and the transmission rod and can be used for adjusting the distance between the connecting block and the transmission rod in the axial direction of the transmission rod. Through adjusting the distance of connecting block and transfer line, can adjust the range of motion of jack catch, be favorable to more accurate, more firmly centre gripping material.

Preferably, the adjusting structure comprises a first screw hole arranged on the connecting block, a second screw hole arranged on the transmission rod and an adjusting screw, wherein the axes of the first screw hole and the second screw hole are parallel to the axis of the transmission rod, and the adjusting screw is in threaded connection with the first screw hole and the second screw hole so as to adjust the distance between the connecting block and the transmission rod in the axial direction of the transmission rod.

Preferably, the chuck structure comprises two connecting blocks, and the two connecting blocks are in one-to-one correspondence with two jaws in the jaw assembly; the two connecting blocks are respectively arranged on two sides of the connecting seat, the claw transmission structure further comprises a limiting rod used for connecting the two connecting blocks, a limiting groove is formed in the connecting seat and extends along the arrangement direction of the two connecting blocks, and the limiting rod is embedded in the limiting groove so as to limit the connecting blocks to move in the width direction of the limiting rod. The connecting blocks arranged at the two ends of the limiting rod can be limited to move in the width direction of the limiting rod, and meanwhile, the two connecting blocks can move along the axis of the transmission rod relatively and synchronously.

Preferably, the limiting rod is provided with a secondary limiting part, the secondary limiting part extends along the width direction of the limiting rod to protrude out of the limiting rod, the groove wall of the limiting groove is provided with a limiting sub-groove, and the secondary limiting part is positioned in the limiting sub-groove to limit the movement of the connecting block in the length direction of the limiting rod.

Preferably, the chuck comprises two jaw assemblies, namely a first jaw assembly and a second jaw assembly, respectively, which can be used for clamping the I-steel; the first claw assembly comprises two first claws which can be mutually close to or far away from each other, the tray body is provided with a first guide groove which is perpendicular to the axial direction of the transmission rod, the two first claws are clamped in the first guide groove and can slide in the first guide groove, and the two first claws can be used for clamping the waist plate of the I-steel; the second jack catch subassembly is equipped with the second guide way including two second jack catchs that can be close to each other or keep away from on the disk body, the axis direction of second guide way perpendicular to transfer line and the extending direction of first guide way, and the second jack catch card is located in the second guide way and can slide in the second guide way, is equipped with the fixture block on the second jack catch, is equipped with the waist board that can be used to dodge I-steel waist board on the fixture block and keeps away empty groove for: when the two wing plates of the I-steel are positioned between the two clamping blocks, the two second clamping claws can be close to each other and respectively squeeze the outer side walls of the two wing plates of the I-steel so as to clamp the I-steel; when the two clamping blocks are positioned between the two wing plates of the I-steel, the waist plate part of the I-steel is positioned in the waist plate clearance groove, and the two second clamping claws can be mutually away from each other and respectively press the inner side walls of the two wing plates of the I-steel so as to tightly support the I-steel.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a chuck structure according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the chuck structure after the housing is removed in accordance with the embodiment of the present utility model;

FIG. 3 is a schematic structural view of a connecting seat according to an embodiment of the present utility model;

FIG. 4 is a front view of a chuck structure in accordance with an embodiment of the utility model;

FIG. 5 is a section A-A of FIG. 4;

FIG. 6 is a schematic structural diagram of a swing arm structure according to an embodiment of the present utility model;

FIG. 7 is a schematic structural view of a connecting seat, a limiting rod and a connecting block according to an embodiment of the present utility model;

FIG. 8 is an exploded view of the connecting seat, stop lever and connecting block of FIG. 7;

FIG. 9 is a schematic structural view of a stop lever and a connecting block according to an embodiment of the present utility model;

FIG. 10 is a schematic view of a mounting base according to an embodiment of the present utility model;

FIG. 11 is a schematic view of a tray, a first jaw assembly, and a second jaw assembly according to an embodiment of the utility model;

FIG. 12 is a side view of an I-steel in an embodiment of the utility model;

FIG. 13 is a schematic view of a second jaw assembly clamping I-steel in accordance with an embodiment of the utility model;

fig. 14 is a schematic structural view of a second jaw assembly for tightening i-steel in an embodiment of the utility model.

In the accompanying drawings: 1-mount, 11-fourth mount, 12-cavity, 2-jaw drive, 3-connection, 31-seat plate, 311-through-rod hole, 32-seat, 33-third mount, 34-first mount hole, 35-limit slot, 351-limit slot, 4-tray, 41-jaw assembly, 411-jaw, 4111-first jaw, 4112-second jaw, 4121-clamp, 41122-waist plate clearance slot, 4113-drive slot, 42-first jaw assembly, 43-second jaw assembly, 44-first guide slot, 45-second guide slot, 5-drive rod, 6-housing, 7-jaw drive structure, 71-connection block, 711-first screw hole, 72-swing arm structure, 721-first swing arm, 7211-waist hole, 722-second swing arm, 723-hinge hole, 73-limit rod, secondary limit, 8-second screw hole, 9-waist plate, 92-731, and 92-wing plate.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In addition, if a directional instruction such as up, down, left, right, front, rear, etc. is referred to in the embodiment of the present utility model, the directional instruction is merely used to explain the relative positional relationship, movement condition, etc. between the components in a specific posture, and if the specific posture is changed, the directional instruction is changed accordingly.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is 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 at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

As shown in fig. 1 to 14, a chuck structure includes a mounting base 1, a jaw driving device 2, a transmission rod 5, a connection base 3, a disk body 4, and a jaw assembly 41 provided on the disk body 4; the mounting seat 1, the connecting seat 3 and the tray body 4 are sequentially arranged, the connecting seat 3 is fixed on the mounting seat 1, and the tray body 4 is fixed on one side, far away from the mounting seat 1, of the connecting seat 3; the chuck structure further comprises a jaw driving structure 7, the jaw driving structure 7 is positioned between the mounting seat 1 and the disc body 4, the jaw assembly 41 is in driving connection with the jaw driving structure 7, the jaw driving device 2 is arranged on the mounting seat 1, one end of the driving rod 5 is in driving connection with the jaw driving device 2, and the other end of the driving rod is in driving connection with the jaw driving structure 7 so as to drive the jaw assembly 41 to open or close.

The connection relation between the clamping jaw 411 and the clamping jaw transmission structure 7 and the transmission rod 5 can be adjusted by fixing the disc body 4 and the mounting seat 1 through the connecting seat 3, the shell 6 does not need to be detached once every time as before, the shell 6 can be assembled after being completely adjusted, the mounting adjustment is more convenient, and the production efficiency is improved.

The connecting seat 3 comprises a seat plate 31 and a seat body 32, the seat plate 31 is in a circular plate shape, the seat body 32 is arranged on the seat plate 31 and in the middle of the seat plate 31, the seat plate 31 is close to the mounting seat 1, and the seat body 32 is close to the disc body 4.

In some embodiments, a plurality of first mounting holes 34 are formed on a side, close to the tray body 4, of the connecting seat 3, a plurality of second mounting holes are formed on the tray body 4, first connecting pieces penetrate through the first mounting holes 34 and the second mounting holes, and the first mounting holes 34, the second mounting holes and the first connecting pieces are used for fixing the tray body 4 on the connecting seat 3. One side of connecting seat 3 near mount pad 1 is equipped with a plurality of third mounting holes 33, and the one end that mount pad 1 is close to connecting seat 3 is equipped with a plurality of fourth mounting holes 11, wears to be equipped with the second connecting piece in third mounting hole 33 and the fourth mounting hole 11, and third mounting hole 33, fourth mounting hole 11 and second connecting piece are used for fixing connecting seat 3 on mount pad 1.

Specifically, the first mounting hole 34 is provided on the seat plate 31 and penetrates the seat plate 31, and the first mounting hole 34 is close to the edge of the seat plate 31. The plurality of first mounting holes 34 are uniformly arranged around the center circumference of the seat plate 31. The first mounting hole 34 may be a screw hole or a light hole; the second mounting holes are screw holes, and the plurality of second mounting holes and the plurality of first mounting holes 34 are in one-to-one correspondence. The first connecting member is a first screw that is threaded into the first mounting hole 34 and is screwed into the second mounting hole.

The third mounting hole 33 is arranged on the base 32, and the third mounting hole 33 is a screw hole; the fourth mounting holes 11 are formed in the tray body 4 and penetrate through the tray body 4, the fourth mounting holes 11 can be light holes or screw holes, the third mounting holes 33 are in one-to-one correspondence with the fourth mounting holes 11, the second connecting pieces are second screws, and the second screws penetrate through the fourth mounting holes 11 and are in spiral connection with the third mounting holes 33.

In some embodiments, a housing 6 is provided between the tray 4 and the mounting base 1, and the connection base 3 is located inside the housing 6. The shell 6 is used for protecting the connecting seat 3 and the structure on the connecting seat 3, and simultaneously, the whole appearance of the chuck structure is more attractive.

Specifically, after the connecting seat 3 is mounted on the mounting seat 1 and the disc body 4 is mounted on the connecting seat 3, a technician can adjust the connection relationship among the claw 411, the claw transmission structure 7 and the transmission rod 5, so that the chuck structure can meet the working requirement. After the above operation is completed, the housing 6 is finally mounted between the tray 4 and the mount 1.

In some embodiments, the jaw driving device 2 is disposed on a side of the mounting base 1 away from the connecting base 3, a cavity 12 through which the transmission rod 5 can pass is disposed in the mounting base 1, one end of the transmission rod 5 is in transmission connection with the jaw driving device 2, and the other end passes through the cavity 12 and is in transmission connection with the jaw transmission structure 7.

Specifically, the overall contour of the mount 1 is cylindrical, and the cavity 12 refers to a space inside the mount 1. The jaw driving device 2 is a cylinder for driving the transmission rod 5 to move in the axial direction of the transmission rod 5.

Further, the overall outline of the housing 6 is also cylindrical, and the outer diameter of the housing 6 is the same as the outer diameter of the mounting seat 1, so that after the housing 6 is completed, the junction of the outer wall surface of the housing 6 and the outer wall surface of the mounting seat 1 is smooth and excessive, thereby being beneficial to improving the aesthetic degree of the chuck structure.

The seat plate 31 is provided with a plurality of rod penetrating holes 311 for penetrating the transmission rod 5.

In other embodiments, the overall profile of the mount 1 and housing 6 may be square cylindrical or other hollow interior shape.

In some embodiments, the jaw assembly 41 includes two jaws 411, the jaws 411 are provided with a driving groove 4113, the opening of the driving groove 4113 faces the jaw driving structure 7, and each jaw 411 is correspondingly provided with one jaw driving structure 7 and one driving rod 5; the jaw drive 7 comprises a swing arm structure 72, the swing arm structure 72 comprising a first swing arm 721 and a second swing arm 722 arranged at an angle; one end of the first swing arm 721 is fixedly connected with the second swing arm 722, the other end is rotationally connected with the transmission rod 5, one end of the second swing arm 722 is fixedly connected with the first swing arm 721, the other end stretches into the transmission groove 4113, a hinge hole 723 is formed at the joint of the first swing arm 721 and the second swing arm 722, the axis of the hinge hole 723 and the rotation axis of the transmission rod 5 and the first swing arm 721 are perpendicular to the extending direction of the first swing arm 721, the extending direction of the second swing arm 722 and the axis of the transmission rod 5, and the swing arm structure 72 is hinged with the connecting seat 3 through the hinge hole 723, so that: when the driving rod 5 moves along the axial direction thereof, the swing arm structure 72 can drive the jaws 411 to move along the direction perpendicular to the axial direction of the driving rod 5, so that the two jaws 411 in the jaw assembly 41 can be close to or far away from each other, and the opening or closing of the jaw assembly 41 can be realized.

Specifically, the swing arm structure 72 is hinged with the base 32. The angle between the first swing arm 721 and the second swing arm 722 is less than 90 ° and greater than 45 °.

The first swing arm 721 is provided with a waist hole 7211, the length direction of the waist hole 7211 is the same as the extending direction of the first swing arm 721, and since the rotation center of the swing arm structure 72 is fixed, the rotation shaft between the first swing arm 721 and the transmission rod 5 needs to have a small range of movement in the extending direction of the first swing arm 721 during transmission, and the waist hole 7211 provides a range in which the rotation shaft between the first swing arm 721 and the transmission rod 5 can move along the extending direction of the first swing arm 721.

A guide groove is provided in the tray body 4, the extending direction of the guide groove is perpendicular to the axis of the transmission rod 5, the claw 411 is provided in the guide groove, and the guide groove can restrict the movement of the claw 411 in the axis direction of the transmission rod 5. The space of the transmission groove 4113 is slightly larger than the volume of the end part of the second swing arm 722 extending into the transmission groove 4113, so that the second swing arm 722 has enough movable space when swinging, and the claw 411 cannot be ejected in the direction away from the connecting seat 3.

In some embodiments, the jaw drive 7 includes a connection block 71, the connection block 71 being secured to an end of the drive rod 5 adjacent to a first swing arm 721, the first swing arm 721 being rotatably coupled to the connection block 71; an adjusting structure is arranged between the connecting block 71 and the transmission rod 5, and the adjusting structure can be used for adjusting the distance between the connecting block 71 and the transmission rod 5 in the axial direction of the transmission rod 5. By adjusting the distance between the connecting block 71 and the transmission rod 5, the movable range of the claw 411 can be adjusted, which is beneficial to clamping materials more accurately and firmly.

Specifically, the connection block 71 has a U shape, and the first swing arm 721 is inserted into a groove of the U-shaped connection block 71 and hinged to the connection block 71 through a rotation shaft.

In some embodiments, the adjusting structure includes a first screw hole 711 provided on the connecting block 71, a second screw hole 8 provided on the transmission rod 5, and an adjusting screw, wherein axes of the first screw hole 711 and the second screw hole 8 are parallel to an axis of the transmission rod 5, and the adjusting screw is in threaded connection with the first screw hole 711 and the second screw hole 8, so as to adjust a distance between the connecting block 71 and the transmission rod 5 in an axial direction of the transmission rod 5.

Specifically, the first screw hole 711 is provided at the bottom of the U-shaped connection block 71, and the distance between the connection block 71 and the transmission rod 5 is adjusted by twisting the adjustment screw clockwise or counterclockwise, so that the movable range of the claw 411 is adjusted, and the clamping is more accurate.

In the present embodiment, two connection blocks 71 are provided in close contact with the body 31 of the connection block 3. The contact surface of the connection block 71 to the base 31 is smooth, and the contact surface of the base 31 to the connection block 71 is smooth. When the transmission rod 5 moves along its own axis, especially moves towards the direction of the claw 411, the connection block 71, the limit rod 73 and the limit groove 35 provide guiding function for the transmission rod 5, and the contact surfaces of the connection block 71 and the seat 31 are smooth surfaces, so that friction is small, and force transmission efficiency of the transmission rod 5 serving as a force transmission medium between the claw driving device 2 and the claw 411 can be improved, and therefore the stroke of the claw 411 and clamping force can be controlled more accurately.

In some embodiments, the chuck structure includes two connection blocks 71, the two connection blocks 71 being in one-to-one correspondence with the two jaws 411 in the jaw assembly 41; the two connecting blocks 71 are respectively arranged on the two sides of the connecting seat 3, the claw transmission structure 7 further comprises a limiting rod 73 for connecting the two connecting blocks 71, the connecting seat 3 is provided with a limiting groove 35, the limiting groove 35 extends along the arrangement direction of the two connecting blocks 71, and the limiting rod 73 is embedded in the limiting groove 35 so as to limit the movement of the connecting blocks 71 in the width direction of the limiting rod 73. The stopper rod 73 can restrict the movement of the connection blocks 71 provided at both ends of the stopper rod 73 in the width direction of the stopper rod 73 while enabling the two connection blocks 71 to move relatively synchronously along the axis of the transmission rod 5.

Specifically, the chuck structure includes two jaw assemblies 41, and thus includes two stop bars 73, and thus two stop grooves 35 are provided in the housing 32. The projections of the two limit grooves 35 on the seat plate 31 are intersected and vertical, and the intersection position of the two limit grooves 35 is located on the center of the seat plate 31. The two stop bars 73 are thus stacked together in the position of intersection of the two stop slots 35.

In some embodiments, the stop lever 73 is provided with a secondary stop portion 731, the secondary stop portion 731 extends along the width direction of the stop lever 73 to protrude from the stop lever 73, the slot wall of the stop slot 35 is provided with a stop sub-slot 351, and the secondary stop portion 731 is located in the stop sub-slot 351 to limit the movement of the connection block 71 in the length direction of the stop lever 73.

Two sides of the limiting rod 73 are provided with two secondary limiting parts 731, the outer surfaces of the two secondary limiting parts 731 are arc-shaped, and the two secondary limiting parts 731 are spliced to form a structure similar to a circular plate. The two side groove walls of the limit groove 35 are respectively provided with a limit groove 351 for accommodating the two secondary limit parts 731.

The setting of the limiting rod 73 including the secondary limiting part 731 can limit the movement of the connecting block 71, stabilize the position of the connecting block 71, and provide a pre-positioning function for the installation of the connecting block 71, thereby improving the installation efficiency.

In other embodiments, the secondary limiting portion 731 may be square, convex, etc., so long as the movement of the connecting block 71 in the length direction of the limiting rod 73 is limited.

In some embodiments, the chuck structure includes two jaw assemblies 41, the two jaw assemblies 41 being a first jaw assembly 42 and a second jaw assembly 43, respectively, the first jaw assembly 42 and the second jaw assembly 43 being operable to clamp the I-steel 9; the first jaw assembly 43 comprises two first jaws 4111 which can be close to or far from each other, the disc body 4 is provided with a first guide groove 44, the first guide groove 44 is perpendicular to the axial direction of the transmission rod 5, the two first jaws 4111 are clamped in the first guide groove 44 and can slide in the first guide groove 44, and the two first jaws 4111 can be used for clamping the waist plate 91 of the I-steel 9; the second jaw assembly 43 comprises two second jaws 4112 which can be close to or far away from each other, a second guide groove 45 is formed in the disc body 4, the second guide groove 45 is perpendicular to the axial direction of the transmission rod 5 and the extending direction of the first guide groove 44, the second jaws 4112 are clamped in the second guide groove 45 and can slide in the second guide groove 45, a clamping block 41121 is arranged on the second jaws 4112, and a waist plate clearance groove 41122 which can be used for avoiding the waist plate 91 of the I-steel 9 is formed in the clamping block 41121, so that: referring to fig. 13, when the two flanges 92 of the i-beam 9 are positioned between the two clamping blocks 41121, the two second clamping jaws 4112 may approach each other and respectively press the outer sidewalls of the two flanges 92 of the i-beam 9 to clamp the i-beam 9; referring to fig. 14, when the two clamping blocks 41121 are located between the two wing plates 92 of the i-steel 9, the waist plate 91 of the i-steel 9 is partially located in the waist plate clearance groove 41122, and the two second clamping claws 4112 can be separated from each other and respectively press the inner side walls of the two wing plates 92 of the i-steel 9 to tighten the i-steel 9.

The specifications of the i-steel 9 are various, so that in order to enable the chuck structure to clamp various i-steels 9, a general manufacturer can make the chuck structure larger, and accordingly, the manufacturing cost of the chuck structure can be greatly increased.

In this embodiment, another chuck structure capable of clamping various specifications of i-steels 9 is provided: when the smaller I-steel 9 needs to be clamped, the I-steel 9 needs to extend between the two second clamping claws 4112, then the waist plate 91 of the I-steel 9 is clamped by the first clamping claw assembly 42, and finally the two second clamping claws 4112 are close to each other and respectively squeeze the outer side walls of the two wing plates 92 of the I-steel 9, so that the I-steel 9 is clamped; when the h-beam 9 with larger specification needs to be clamped, two second clamping claws 4112 are required to be arranged between two wing plates 92 of the h-beam 9, the waist plate 91 of the h-beam 9 is partially positioned in the waist plate avoiding groove 41122, then the first clamping claw assembly 42 clamps the waist plate 91 of the h-beam 9, and finally the two second clamping claws 4112 are far away from each other and respectively squeeze the inner side walls of the two wing plates 92 of the h-beam 9, so that supporting acting force is applied to the h-beam 9, and the h-beam 9 is stably fixed on the chuck structure in cooperation with the first clamping claw assembly 42. Compared with the chuck structure capable of clamping the I-steel 9 with various specifications, the chuck structure is smaller in size, lower in cost, convenient to install and beneficial to improving economic benefits.

The chuck structure can also clamp channel steel and the like similar to the section bar structure of I-steel 9.

Additionally, a conventional clamping structure is further provided on the second jaw 4112, so that the chuck structure can clamp the commonly used profile such as a square tube, a round tube, etc.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. A chuck structure, characterized in that: comprises a mounting seat (1), a claw driving device (2), a transmission rod (5), a connecting seat (3), a disc body (4) and a claw assembly (41) arranged on the disc body (4);

the mounting seat (1), the connecting seat (3) and the disc body (4) are sequentially arranged, the connecting seat (3) is fixed on the mounting seat (1), and the disc body (4) is fixed on one side, far away from the mounting seat (1), of the connecting seat (3);

the chuck structure further comprises a jaw driving structure (7), the jaw driving structure (7) is located between the mounting seat (1) and the disc body (4), the jaw assembly (41) is in driving connection with the jaw driving structure (7), the jaw driving device (2) is arranged on the mounting seat (1), one end of the driving rod (5) is in driving connection with the jaw driving device (2), and the other end of the driving rod is in driving connection with the jaw driving structure (7) so as to drive the jaw assembly (41) to open or close.

2. The chuck structure according to claim 1, wherein: a plurality of first mounting holes (34) are formed in one side, close to the disc body (4), of the connecting seat (3), a plurality of second mounting holes are formed in the disc body (4), first connecting pieces penetrate through the first mounting holes (34) and the second mounting holes, and the first mounting holes (34), the second mounting holes and the first connecting pieces are used for fixing the disc body (4) on the connecting seat (3);

one side that connecting seat (3) is close to mount pad (1) is equipped with a plurality of third mounting holes (33), mount pad (1) is close to one end of connecting seat (3) is equipped with a plurality of fourth mounting holes (11), third mounting holes (33) with wear to be equipped with the second connecting piece in fourth mounting holes (11), third mounting holes (33) fourth mounting holes (11) with the second connecting piece is used for with connecting seat (3) are fixed on mount pad (1).

3. The chuck structure according to claim 1, wherein: a shell (6) is arranged between the tray body (4) and the mounting seat (1), and the connecting seat (3) is positioned at the inner side of the shell (6).

4. The chuck structure according to claim 1, wherein: the claw driving device (2) is arranged on one side, far away from the connecting seat (3), of the mounting seat (1), a cavity (12) through which the transmission rod (5) passes is arranged in the mounting seat (1), one end of the transmission rod (5) is in transmission connection with the claw driving device (2), and the other end of the transmission rod passes through the cavity (12) and is in transmission connection with the claw transmission structure (7).

5. The chuck structure according to claim 1, wherein: the jaw assembly (41) comprises two jaws (411), a transmission groove (4113) is formed in each jaw (411), an opening of each transmission groove (4113) faces to the jaw transmission structure (7), and each jaw (411) is correspondingly provided with one jaw transmission structure (7) and one transmission rod (5);

the jaw transmission structure (7) comprises a swing arm structure (72), wherein the swing arm structure (72) comprises a first swing arm lever (721) and a second swing arm lever (722) which are arranged at an angle;

one end of the first swing arm lever (721) is fixedly connected with the second swing arm lever (722), the other end of the first swing arm lever is rotationally connected with the transmission rod (5), one end of the second swing arm lever (722) is fixedly connected with the first swing arm lever (721), the other end of the second swing arm lever stretches into the transmission groove (4113), a hinge hole (723) is formed in the joint of the first swing arm lever (721) and the second swing arm lever (722), and the axis of the hinge hole (723) and the rotation axis of the transmission rod (5) and the first swing arm lever (721) are perpendicular to the extending direction of the first swing arm lever (721), the extending direction of the second swing arm lever (722) and the axis of the transmission rod (5), and the swing arm structure (72) is hinged with the connecting seat (3) through the hinge hole (723) so that: when the transmission rod (5) moves along the axial direction of the transmission rod, the swing arm structure (72) can drive the clamping jaws (411) to move along the direction perpendicular to the axial direction of the transmission rod (5), so that two clamping jaws (411) in the clamping jaw assembly (41) can be close to or far away from each other, and the clamping jaw assembly (41) can be opened or closed.

6. The chuck structure according to claim 5, wherein: the jaw transmission structure (7) comprises a connecting block (71), wherein the connecting block (71) is fixed at one end of the transmission rod (5) close to the first swing arm rod (721), and the first swing arm rod (721) is rotatably connected to the connecting block (71);

an adjusting structure is arranged between the connecting block (71) and the transmission rod (5), and the adjusting structure can be used for adjusting the distance between the connecting block (71) and the transmission rod (5) in the axial direction of the transmission rod (5).

7. The chuck structure according to claim 6, wherein: the adjusting structure comprises a first screw hole (711) arranged on the connecting block (71), a second screw hole (8) arranged on the transmission rod (5) and an adjusting screw, wherein the axes of the first screw hole (711) and the second screw hole (8) are parallel to the axis of the transmission rod (5), and the adjusting screw is in threaded connection with the first screw hole (711) and the second screw hole (8) so as to adjust the distance between the connecting block (71) and the transmission rod (5) in the axial direction of the transmission rod (5).

8. The chuck structure according to claim 6, wherein: the chuck structure comprises two connecting blocks (71), wherein the two connecting blocks (71) are in one-to-one correspondence with two clamping jaws (411) in the clamping jaw assembly (41);

the two connecting blocks (71) are respectively arranged on two sides of the connecting seat (3), the jaw transmission structure (7) further comprises a limiting rod (73) used for connecting the two connecting blocks (71), limiting grooves (35) are formed in the connecting seat (3), the limiting grooves (35) extend along the arrangement direction of the two connecting blocks (71), and the limiting rod (73) is embedded in the limiting grooves (35) so as to limit the connecting blocks (71) to move in the width direction of the limiting rod (73).

9. The chuck structure according to claim 8, wherein: be equipped with second grade spacing portion (731) on gag lever post (73), second grade spacing portion (731) are followed the width direction of gag lever post (73) extends in order to stretch out in gag lever post (73), be equipped with spacing minute groove (351) on the cell wall of spacing groove (35), second grade spacing portion (731) are located spacing minute groove (351) are interior, in order to restrict connecting block (71) are in the ascending removal of gag lever post (73) length.

10. The chuck structure according to claim 1, wherein: the chuck structure comprises two jaw assemblies (41), wherein the two jaw assemblies (41) are a first jaw assembly (42) and a second jaw assembly (43) respectively, and the first jaw assembly (42) and the second jaw assembly (43) can be used for clamping I-steel (9);

the first jaw assembly (42) comprises two first jaws (4111) which can be mutually close to or far away from each other, a first guide groove (44) is formed in the disc body (4), the first guide groove (44) is perpendicular to the axial direction of the transmission rod (5), the two first jaws (4111) are clamped in the first guide groove (44) and can slide in the first guide groove (44), and the two first jaws (4111) can be used for clamping a waist plate (91) of the I-steel (9);

the second jaw assembly (43) comprises two second jaws (4112) which can be close to or far away from each other, a second guide groove (45) is formed in the disc body (4), the second guide groove (45) is perpendicular to the axial direction of the transmission rod (5) and the extending direction of the first guide groove (44), the second jaws (4112) are clamped in the second guide groove (45) and can slide in the second guide groove (45), clamping blocks (41121) are arranged on the second jaws (4112), and waist plate clearance grooves (41122) which can be used for avoiding the waist plates (91) of the I-steel (9) are formed in the clamping blocks (41121) so that the waist plates of the I-steel (9) can slide in the second guide groove (45):

when the two wing plates (92) of the I-steel (9) are positioned between the two clamping blocks (41121), the two second clamping claws (4112) can be close to each other and respectively press the outer side walls of the two wing plates (92) of the I-steel (9) so as to clamp the I-steel (9);

when the two clamping blocks (41121) are located between the two wing plates (92) of the I-steel (9), the waist plate (91) of the I-steel (9) is partially located in the waist plate clearance groove (41122), and the two second clamping claws (4112) can be away from each other and respectively press the inner side walls of the two wing plates (92) of the I-steel (9) so as to tightly support the I-steel (9).