CN110744238A - Second-order flexible clamp and second-order flexible clamp applied to second-order stepping framework - Google Patents

Abstract

The present invention provides a second-order flexible fixture and a second-order flexible fixture applied to a second-order stepping frame, comprising a first base, a second base, a first component, and a second component; the first component is arranged on the second a base and connected to the first base, the second component is disposed on the second base and connected to the first component; the first component is provided with a first clamping member, a second Clamping member; the first clamping member is connected with the first component along the second direction; the first direction and the second direction are spaced at a certain angle; the first clamping member clamps the first clamp, and the second clamping member clamps the first clamp Two clamps; a third clamp and a fourth clamp are arranged on the second base, the third clamp clamps the third clamp, and the fourth clamp clamps the fourth clamp. The application of the technical solution can realize a second-order stepping skeleton in which the fixture is suitable for various arrangements.

Description

A second-order flexible fixture and a second-order flexible fixture applied to a second-order stepping skeleton

technical field

The invention relates to the field of automobile skeletons, in particular to a second-order flexible fixture and a second-order flexible fixture applied to a second-order stepping skeleton.

Background technique

The bus frame includes a second-order step frame, and there are hundreds of existing second-order step frame arrangements. When welding the step frame, the fixture in the prior art is fixed, that is, a step frame in an arrangement form. A jig is needed, and such a jig has low practicability and causes the abuse of resources.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a second-order flexible fixture and a second-order flexible fixture applied to a second-order stepping frame, so as to realize a second-order stepping frame suitable for various arrangements of the clamps.

In order to solve the above technical problems, the present invention provides a second-order flexible clamp, which includes a first base, a second base, a first component, and a second component; the first component is disposed on the first base and is connected with all the the first base is slidably connected along the first direction, the second component is disposed on the second base and is slidably connected with the first component along the length direction of the first component;

The first component is provided with a first clamping member and a second clamping member; the first clamping member is slidably connected to the first component along a second direction; the first direction and the second direction are spaced apart a certain angle; the first clamps clamp the first clamps whose lengths are arranged in the first direction, and the second clamps clamp the second clamps whose lengths are arranged in the second direction;

A third clamping piece and a fourth clamping piece are arranged on the second base, the third clamping piece clamps a third clamping object whose length is arranged in the third direction, and the fourth clamping piece clamps a fourth clip whose length is arranged along the fourth direction; the third direction and the fourth direction are spaced at a certain angle;

The plane formed by the first direction and the second direction and the plane formed by the third direction and the fourth direction are spaced at a certain angle.

In a preferred embodiment, first guide rails are provided on both opposite sides of the first base along the first direction, and first sliding members are provided on both ends of the first component. The first component is slidably connected to the first guide rail along a first direction; the first component is specifically a second guide rail, and each of the first clamping members is provided with a second sliding member for connecting with the second guide rail along the Slide the connection in the second direction.

In a preferred embodiment, the first sliding member and the second sliding member respectively have a first sliding cavity and a second sliding cavity, and the first guide rail and the second guide rail are respectively in the first sliding cavity and the second sliding cavity. The second sliding cavity slides; the first sliding cavity and the second sliding cavity are also provided with first guide rail fittings and second guide rail fittings respectively, and the first guide rail fittings are used for connecting with the first guide rail. sliding in cooperation, the second guide rail fitting is used for sliding in cooperation with the second guide rail;

The inner side walls of the first guide rail fitting piece and the second guide rail fitting piece are respectively provided with protruding strips along the first direction and the second direction, and the outer side walls of the first guide rail and the second guide rail are along the first direction and the second guide rail respectively. A long concave part is provided in the direction, and the protruding strip abuts the bottom of the long concave part and moves along the length direction of the long concave part, so that the first guide rail fitting and the second guide fitting A guide rail and a second guide rail cooperate to slide.

In a preferred embodiment, a side wall of the first sliding cavity is provided with a first screw hole, and the first screw is inserted into the first screw hole; when the first sliding member is in the first guide rail When sliding up, the first screw is not locked with the first screw hole, and when the first screw is locked with the first screw hole, one end of the first screw abuts against the first guide rail. an outer side wall, the first sliding member is limited to the first guide rail along a first direction;

The second sliding member is specifically composed of a sliding groove and a mounting plate; the sliding groove and the mounting plate are fixedly connected in a vertical direction to form the second sliding cavity; the mounting plate is used to install the a first clamping member; a side wall of the sliding groove is provided with a second threaded hole extending in the vertical direction, and a second screw is inserted into the second threaded hole; the second sliding member is located in the second When sliding on the guide rail, the second screw is not locked with the second screw hole, and when the second screw is locked with the second screw hole, one end of the second screw is pressed against the lower part of the mounting plate. the bottom surface, so that the sliding groove and the mounting plate clamp the second guide rail from below and above, respectively, so that the second sliding member is limited to the second guide rail along the second direction.

In a preferred embodiment, the first clamping member is also fixedly connected with a first placing table; the first placing table is used for placing the first clip arranged along the first direction, the first placing Both sides of the stage are extended upward for a distance to form a first limit side wall, so that the first clamp is limited in the second direction;

The mounting plate is also provided with an extension strip, and one end of the extension strip away from the mounting plate is fixedly connected to the second clamping piece and the second placing table, the second clamping piece; the second placing The table is used for placing the second clip arranged along the second direction, and the two sides of the second placing table extend upward for a distance to form a second limit side wall, so that the second clip is limited in the first direction. bit.

In a preferred embodiment, the second component is a third guide rail, one end of the second guide rail and the third guide rail is slidably connected to a sliding groove, and the third guide rail is placed on the sliding rail. Sliding in the slot.

In a preferred embodiment, a fourth guide rail is disposed on the second base, and the third and fourth clamps are both disposed on the fourth guide rail and are connected with the fourth guide rail. a sliding connection; a third sliding member and a fourth sliding member are respectively arranged on the third clamping member and the fourth clamping member; the third sliding member and the fourth sliding member are both connected with the fourth guide rail along the Three-way sliding connection.

In a preferred embodiment, the third sliding member and the fourth sliding member respectively have a third sliding cavity and a fourth sliding cavity, and the fourth guide rail is in the third sliding cavity and the fourth sliding cavity sliding; the third sliding cavity and the fourth sliding cavity are also provided with third guide rail fittings and fourth guide rail fittings respectively, and the third guide rail fittings and the fourth guide rail fittings are used to cooperate with the The fourth guide rail cooperates and slides.

In a preferred embodiment, the first clamping member, the second clamping member, the third clamping member and the fourth clamping member respectively comprise a first connecting member and a second connecting member arranged along the horizontal direction. , the third connecting piece and the fourth connecting piece, and the first abutting piece, the second abutting piece, the third abutting piece and the fourth abutting piece arranged in the vertical direction; The two pressing pieces, the third pressing piece and the fourth pressing piece are respectively used for pressing against the first clip, the second clip, the third clip and the fourth clip;

One ends of the first connecting piece, the second connecting piece, the third connecting piece and the fourth connecting piece are respectively connected to the first abutting piece, the second abutting piece, the third abutting piece and the fourth abutting piece , the other ends of the first connecting piece, the second connecting piece, the third connecting piece and the fourth connecting piece are respectively connected with the first cylinder, the second cylinder, the third cylinder and the fourth cylinder, the first cylinder, the third Two air cylinders, third air cylinders and fourth air cylinders respectively drive the first connecting piece, the second connecting piece, the third connecting piece and the fourth connecting piece to move up and down, so that the first abutting piece and the second abutting piece are moved up and down respectively. , the third abutting piece and the fourth abutting piece also move up and down, and the first abutting piece, the second abutting piece, the third abutting piece and the fourth abutting piece move down to abut the The first clip, the second clip, the third clip and the fourth clip are fixed to fix the first clip, the second clip, the third clip and the fourth clip.

The present invention also provides a second-order flexible clamp applied to a second-order stepping frame, using the above-mentioned second-order flexible clamp, the first direction and the second direction are perpendicular to each other, and the third direction and the fourth direction are perpendicular to each other. The directions are perpendicular to each other, and the plane formed by the first direction and the second direction and the plane formed by the third direction and the fourth direction are perpendicular to each other;

The first clip, the second clip, the third clip and the fourth clip are all metal tubes; the first clips are parallel to each other, and the second clips are parallel to each other, so The third clips are parallel to each other, and the fourth clips are parallel to each other; the first clip, the second clip, the third clip and the fourth clip are clamped and fixed respectively After the first clip, the second clip, the third clip and the fourth clip, the first clip, the second clip, the third clip and the fourth clip are welded and fixed.

Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

The present invention provides a second-order flexible clamp and a second-order flexible clamp applied to a second-step stepping frame. The first clamp is adjusted by a first component that can slide in a first direction and a second component that can slide in a second direction The position of the holding piece and the second holding piece, and the first holding piece and the second holding piece can be densely arranged on the base to meet the first-step skeleton of various arrangements, and then by setting the first holding piece and the second holding piece. Three clamps and fourth clamps are used to fix the third and fourth clamps arranged along the third and fourth directions to realize a first-step step frame with various arrangements in the other plane direction. The first-order stepping skeletons of the two planes are perpendicular to each other to form a second-order stepping skeleton. The structure of the second-order stepping skeletons in various arrangements can be adjusted to realize the function of a fixture suitable for the second-order stepping skeletons with various arrangements. ; To a large extent, a variety of applicability that traditional fixtures do not have is realized; this can not only save the storage space of the fixture, but also make full use of the fixture to maximize the use of resources, thereby reducing the cost of the second-step stepping skeleton. Cost of production.

Description of drawings

1 is a schematic diagram of the overall structure of a second-order flexible clamp applied to a second-order stepping frame in a preferred embodiment of the present invention;

2 is a schematic structural diagram of a first sliding member of a second-order flexible clamp applied to a second-order stepping frame in a preferred embodiment of the present invention;

3 is a partially enlarged schematic diagram of the positional relationship of the first clamping member of the second-order flexible clamp applied to the second-order stepping frame in the preferred embodiment of the present invention;

4 is a partially enlarged schematic diagram of the positional relationship of the second clamping member of the second-order flexible clamp applied to the second-order stepping frame in the preferred embodiment of the present invention;

5 is a partially enlarged schematic view of the positional relationship between the second sliding component and the first sliding component of the second-order flexible clamp applied to the second-order stepping frame in the preferred embodiment of the present invention;

6 is a partially enlarged schematic diagram of the positional relationship between the third clamping member and the fourth clamping member of the second-order flexible clamp applied to the second-order stepping frame in the preferred embodiment of the present invention;

7 is a bottom view of the overall structure of a second-order flexible clamp applied to a second-order stepping frame in a preferred embodiment of the present invention;

8 is a partially enlarged schematic view from the bottom of the overall structure of the second-order flexible clamp applied to the second-order stepping frame in the preferred embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a second-order step frame in a preferred embodiment of the present invention.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

A second-order flexible fixture applied to a second-order stepping frame adopts a second-order flexible fixture. Referring to Figures 1 to 9, the second-order flexible fixture includes a first base 1, a second base 3, a first component, The second component; the first component is arranged on the first base 1 and is slidably connected with the first base 1 along the first direction, and the second component is arranged on the second base 3 and is connected with the first base 1. The first assembly is slidably connected along the length direction of the first assembly; the first assembly is provided with a first clamping member 21 and a second clamping member 22; the first clamping member 21 is connected to the second direction along the second direction. The first component is slidably connected; the first direction and the second direction are spaced at a certain angle; the first clamp 21 clamps the first clamp 100 whose length is set along the first direction, and the second clamp The second clip 200 whose length is arranged in the second direction is clamped by the member 22; the second base 3 is provided with a third clamping member 33 and a fourth clamping member 34, and the third clamping member 33 clamps The third clip 300 whose length is arranged in the third direction, the fourth clip 34 clips the fourth clip 400 whose length is arranged in the fourth direction; the third direction and the fourth direction are separated by a certain angle ;

In this embodiment, the first direction and the second direction are perpendicular to each other, and the third direction and the fourth direction are perpendicular to each other; the plane formed by the first direction and the second direction is perpendicular to the third direction and the third direction. The planes formed by the four directions are perpendicular to each other.

Specifically, the base is a square base, first guide rails 11 are provided on opposite sides of the first base 1 along the first direction, and first sliding members are provided at both ends of the first component , the first sliding member is slidably connected with the first guide rail 11 along the first direction; the first component is specifically the second guide rail 2 , and the first clamping member 21 is provided with a second sliding member, It is used for sliding connection with the second guide rail 2 along the second direction. That is, the first guide rail 11 is slidably connected to the second guide rail 2 along the first direction through the first sliding members disposed at both ends thereof, and the first clamping member 21 is connected to the second guide rail 2 through the second sliding members disposed thereon. The guide rails 2 are slidably connected in the second direction. As shown in the figure, the first guide rail 11 and the second guide rail 2 are specifically guide rail rods arranged perpendicular to each other.

The specific sliding relationship: the first sliding member and the second sliding member have a first sliding cavity 12 and a second sliding cavity 202 respectively, and the first guide rail 11 and the second guide rail 2 are respectively in the first sliding cavity 12 and the second sliding cavity 202; the first sliding cavity 12 and the second sliding cavity 202 are also provided with a first guide rail fitting 121 and a second guide rail fitting 214 respectively, and the first guide rail fitting 121 is used for For sliding with the first guide rail 11 , the second guide rail fitting 214 is used for sliding with the second guide rail 2 ; specifically, the first guide rail fitting 121 and the second guide rail fitting 214 The inner sidewalls of the guide rails are respectively provided with convex strips 1211 along the first and second directions, and the outer sidewalls of the first guide rail 11 and the second guide rail 2 are respectively provided with long concave portions 111 along the first and second directions. The strip 1211 abuts the bottom of the long recess 111 and moves along the length direction of the long recess 111 , so that the first guide rail fitting 121 and the second guide rail fitting 214 are connected to the first guide rail 11 and the first guide rail 111 , respectively. The second guide rail 2 cooperates to slide. In this way, the sliding of the first sliding member and the second sliding member on the first guide rail 11 and the second guide rail 2 can be realized, and they are respectively along the first direction and the second direction.

The first sliding member and the second sliding member need to be limited and fixed when they slide to a certain position. Specifically, a side wall of the first sliding cavity 12 is provided with a first screw hole along the horizontal direction. The screw 122 is inserted into the first screw hole; when the first sliding member needs to slide on the first guide rail 11, the first screw 122 is not locked with the first screw hole, the first The contact between the sliding cavity 12 and the first guide rail 11 is not tight, and the first guide rail 11 has a movable space in the first sliding cavity 12, so that the first sliding member can slide on the first guide rail 11; When the positioning of the first sliding member is completed, it needs to be limited and fixed, and the first screw 122 is locked with the first screw hole. When the first screw 122 is locked with the first screw hole, the first screw 122 is locked with the first screw hole. One end of a screw 122 near the center of the base abuts against the outer side wall of the first guide rail 11, so that the first guide rail 11 is limited and fixed to the end of the first screw 122 and the first sliding cavity 12 away from the first screw hole. a side wall, the first sliding member is limited to the first guide rail 11 along the first direction;

Specifically, the second sliding member is specifically composed of a sliding groove 2021 and the mounting plate 204; the sliding groove 2021 and the mounting plate 204 are fixedly connected in a vertical direction to form the second sliding cavity 202; The mounting plate 204 is used to install the first clamping member 21; a side wall of the sliding groove 2021 is provided with a second screw hole extending in the vertical direction, and a second screw 2022 is inserted into the second screw. When the second sliding member slides on the second guide rail 2, the second screw 2022 and the second screw hole are not locked, and the second sliding cavity 202 and the mounting plate 204 are still There is an active space for the second guide rail 2 to move. After the positioning of the second sliding member is completed, the second screw 2022 and the second screw hole need to be locked. When the screw holes are tightened, one end of the second screw 2022 abuts against the bottom surface of the mounting plate 204, so that the sliding groove 2021 and the mounting plate 204 clamp the second guide rail from below and above, respectively. 2, so that the second sliding member is limited to the second guide rail 2 along the second direction. In this embodiment, the first screw 122 and the second screw 2022 are provided with a first handle 1221 and a second handle 20221, respectively, so as to facilitate the operation of rotating the first screw 122 and the second screw 2022.

Specifically, the first clamping member 21 is also fixedly connected with a first placing table 213; the first placing table 213 is used for placing the first clamp 100 arranged in the first direction, and the first placing table The two sides of 213 extend upward for a distance to form a first limiting side wall 2131, so that the first clip 100 is limited in the second direction; the mounting plate 204 is also provided with extension bars, the extension bars One end away from the mounting plate 204 is fixedly connected to the second clamping member 22 and the second placing table 223, the second clamping member 22; the second placing table 223 is used for placing the For the second clip 200 , two sides of the second placing table 223 extend upward for a distance to form second limiting side walls 2231 , so that the second clip 200 is limited in the first direction.

The first clip 100 and the second clip 200 arranged along the first direction and the second direction are described above, and the first-order skeleton formed between them on the same plane also needs a first-order skeleton arranged on another plane, The two are then spliced together to form the second-step stepping frame; specifically, the second component is a third guide rail 31 , and a sliding groove is fixed at one end of the second guide rail 2 slidably connected to the third guide rail 31 . 23. The third guide rail 31 is placed in the sliding groove 23 to slide. The third guide rail 31 is arranged along the first direction, and the second guide rail 2 slides on the third guide rail 31 along the first direction; in this embodiment, a third guide rail is arranged in the sliding groove 23 to match The third guide rail 351 is also provided with a convex strip 1211, and the third guide rail 31 is also provided with a concave portion, which is used to make the sliding groove 23 slide more smoothly on the third guide rail 31. A third mounting table 231 is further provided above the sliding groove 23 for mounting the third clamping object 300 arranged in the third direction.

Specifically, a fourth guide rail 32 is provided on the second base 3 , and the setting direction of the fourth guide rail 32 is parallel to the first direction, but the fourth guide rail 32 is arranged on the side of the third guide rail 31 . Vertically above; the third clamping member 33 and the fourth clamping member 34 are both disposed on the fourth guide rail 32 and slidably connected with the fourth guide rail 32 ; the third clamping member 33 and The fourth clamping member 34 is respectively provided with a third sliding member and a fourth sliding member; the third sliding member and the fourth sliding member are both slidably connected with the fourth guide rail 32 along a third direction. The third direction and the first direction are parallel to each other but the third direction is located just above the first direction.

Specifically, the third sliding member and the fourth sliding member respectively have a third sliding cavity 35 and a fourth sliding cavity, and the fourth guide rail 32 slides in the third sliding cavity 35 and the fourth sliding cavity; The third sliding cavity 35 and the fourth sliding cavity are also provided with a fourth guide rail fitting 351 and a fifth guide rail fitting 344, respectively. The third guide rail fitting 351 and the fourth guide rail fitting 351 are used for It cooperates with the fourth guide rail 32 to slide. In this embodiment, the third sliding cavity 35 and the fourth sliding cavity are respectively provided with a fourth guide rail fitting 351 and a fifth guide rail fitting member, and the fourth guide rail fitting member 351 and the fifth guide rail fitting member are on the Protruding strips are also provided, and the fourth guide rail 32 is also provided with a concave portion, which is used to make the third sliding cavity 35 and the fourth sliding cavity slide more smoothly on the fourth guide rail 32 . A first mounting table 352 and a second mounting table 355 are respectively disposed on the third sliding member and the fourth sliding member for fixing the third clamping member 33 and the fourth clamping member 34 respectively. The fourth clamping member 34 is also fixedly connected with a fourth mounting table 343, the fourth mounting table 343 is used for mounting the fourth clamping object 400 arranged in the fourth direction, and two of the fourth mounting table 343 are arranged in the fourth direction. The limiting wall 3431 extends from the side wall for limiting the fourth clip 400 .

The limiting manner of the third sliding member and the fourth sliding member on the fourth guide rail 32 is the same as that of the second sliding member on the second guide rail 2, and the third sliding member With the fourth sliding member, through screw holes are provided on the cavity walls of the third sliding cavity 35 and the fourth sliding cavity, and the fourth guide rail is tightened by locking the screw so that one end of the screw abuts the fourth guide rail 32 32. When sliding is required, unscrew the screw, and the fourth guide rail 32 has a movable space in the third sliding cavity 35 and the fourth sliding cavity, which is the same as the limiting method of the second sliding member.

Specifically, the first clamping member 21 , the second clamping member 22 , the third clamping member 33 and the fourth clamping member 34 respectively include a first connecting member 211 and a second connecting member arranged along the horizontal direction. 221, the third connecting piece 331 and the fourth connecting piece 341 and the first abutting piece 212, the second abutting piece 222, the third abutting piece 332 and the fourth abutting piece 342 arranged in the vertical direction; the The first abutting piece 212 , the second abutting piece 222 , the third abutting piece 332 and the fourth abutting piece 342 are respectively used for abutting and clamping the first clip 100 , the second clip 200 , the third clip The clip 300 and the fourth clip 400; one end of the first connecting piece 211, the second connecting piece 221, the third connecting piece 331 and the fourth connecting piece 341 are connected to the first abutting piece 212, the second connecting piece 212, the second connecting piece 341 respectively. The abutting member 222, the third abutting member 332 and the fourth abutting member 342, the other ends of the first connecting member 211, the second connecting member 221, the third connecting member 331 and the fourth connecting member 341 are respectively connected to the first connecting member 211, the second connecting member 221, the third connecting A cylinder, a second cylinder, a third cylinder and a fourth cylinder, the first cylinder, the second cylinder, the third cylinder and the fourth cylinder drive the first connecting member 211, the second connecting member 221, the third cylinder respectively The connecting member 331 and the fourth connecting member 341 move up and down, so that the first abutting member 212, the second abutting member 222, the third abutting member 332 and the fourth abutting member 342 also move up and down, the first The pressing member 212 , the second pressing member 222 , the third pressing member 332 and the fourth pressing member 342 move downward to abut against the first clip 100 , the second clip 200 and the third clip respectively 300 and the fourth clip 400, so as to fix the first clip 100, the second clip 200, the third clip 300 and the fourth clip 400.

In this embodiment, the first clip 100 , the second clip 200 , the third clip 300 and the fourth clip 400 are all metal tubes; the first clips 100 are parallel to each other, so The second clips 200 are parallel to each other, the third clips 300 are parallel to each other, and the fourth clips 400 are parallel to each other; the first clamping member 21 and the second clamping member 22 After the first clip 100, the second clip 200, the third clip 300 and the fourth clip 400 are respectively clamped and fixed, the first clip The object 100 , the second clip 200 , the third clip 300 and the fourth clip 400 are welded and fixed. Specifically, according to the arrangement of the second-order stepping frames, it is determined whether or not each clamping member holds a clip, so that the second-order flexible clamp can be adapted to the second-step stepping frames of various arrangements.

The present invention provides a second-order flexible clamp and a second-order flexible clamp applied to a second-step stepping frame. The first clamp is adjusted by a first component that can slide in a first direction and a second component that can slide in a second direction The positions of the holding member 21 and the second holding member 22 can be determined, and the first holding member 21 and the second holding member 22 can be densely arranged on the base to meet the first-step stepping frame of various arrangements, and then Then, by setting the third clamping member 33 and the fourth clamping member 34 to fix the third clamping object 300 and the fourth clamping object 400 arranged along the third direction and the fourth direction, various arrangements in another plane direction can be realized. The first-order stepping skeletons of the two planes are perpendicular to each other and are connected and welded to form a second-order stepping skeleton. This scheme adjusts and realizes the function of a fixture suitable for the second-order stepping skeleton of various arrangements through the structure of the second-order stepping skeletons in various arrangements; to a large extent, it realizes various applicability that the traditional fixture does not have; In this way, not only the storage space of the fixture can be saved, but also the fixture can be fully utilized, so as to realize the purpose of maximizing the utilization of resources, thereby reducing the production cost of the second-order stepping frame.

The above description is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited to this. Insubstantial changes are acts that infringe the protection scope of the present invention.

Claims (10)

1. A second-order flexible clamp is characterized by comprising a first base, a second base, a first assembly and a second assembly; the first assembly is arranged on the first base and is in sliding connection with the first base along a first direction, and the second assembly is arranged on the second base and is in sliding connection with the first assembly along the length direction of the first assembly;

the first assembly is provided with a first clamping piece and a second clamping piece; the first clamping piece is connected with the first assembly in a sliding mode along a second direction; the first direction and the second direction are separated by a certain angle; the first clamping piece clamps a first clamp with the length arranged along a first direction, and the second clamping piece clamps a second clamp with the length arranged along a second direction;

a third clamping piece and a fourth clamping piece are arranged on the second base, the third clamping piece clamps a third object clamp with the length arranged along a third direction, and the fourth clamping piece clamps a fourth object clamp with the length arranged along a fourth direction; a certain angle is arranged between the third direction and the fourth direction;

an angle is arranged between a plane formed by the first direction and the second direction and a plane formed by the third direction and the fourth direction.

2. A second order flexible clip according to claim 1, wherein; two opposite sides of the first base are provided with first guide rails along a first direction, two ends of the first assembly are provided with first sliding parts, and the first sliding parts are connected with the first guide rails in a sliding manner along the first direction; the first assembly is specifically a second guide rail, and the first clamping piece is provided with a second sliding piece for being in sliding connection with the second guide rail along a second direction.

3. The second order flexible fixture of claim 2, wherein the first and second slides have first and second slide cavities, respectively, and the first and second rails slide within the first and second slide cavities, respectively; a first guide rail matching piece and a second guide rail matching piece are respectively arranged in the first sliding cavity and the second sliding cavity, the first guide rail matching piece is used for matching with the first guide rail to slide, and the second guide rail matching piece is used for matching with the second guide rail to slide;

the inside wall of first guide rail fitting piece and second guide rail fitting piece is provided with the sand grip along first direction and second direction respectively, the outside wall of first guide rail and second guide rail is provided with long concave part along first direction and second direction respectively, the sand grip butt the bottom of long concave part, and follow the length direction of long concave part removes, thereby makes first guide rail fitting piece and second guide rail fitting piece respectively with first guide rail and second guide rail cooperation slide.

4. A second order flexible fixture according to claim 3, wherein a side wall of said first sliding chamber is provided with a first screw hole, and a first screw is inserted into said first screw hole; when the first sliding part slides on the first guide rail, the first screw and the first screw hole are not locked, when the first screw and the first screw hole are locked, one end of the first screw props against the outer side wall of the first guide rail, and the first sliding part is limited on the first guide rail along a first direction;

the second sliding part is composed of a sliding groove and a mounting plate; the sliding groove and the mounting plate are fixedly connected in the vertical direction to form the second sliding cavity; the mounting plate is used for mounting the first clamping piece; a second screw hole penetrating through the side wall of the sliding groove is formed in the vertical direction, and a second screw is inserted into the second screw hole; when the second sliding part slides on the second guide rail, the second screw is not locked with the second screw hole, and when the second screw is locked with the second screw hole, one end of the second screw abuts against the lower bottom surface of the mounting plate, so that the sliding groove and the mounting plate clamp the second guide rail from the lower part and the upper part respectively, and the second sliding part is limited on the second guide rail along the second direction.

5. The second order flexible fixture of claim 4, wherein the first clamping member is further fixedly connected with a first placing table; the first placing table is used for placing first clamping objects arranged along a first direction, and two sides of the first placing table extend upwards for a certain distance to form a first limiting side wall so that the first clamping objects are limited in a second direction;

the mounting plate is also provided with an extension strip, and one end of the extension strip, which is far away from the mounting plate, is fixedly connected with the second clamping piece and the second placing table; the second placing table is used for placing second clamping objects arranged along a second direction, and two sides of the second placing table extend upwards for a certain distance to form second limiting side walls, so that the second clamping objects are limited in the first direction.

6. The second-order flexible fixture of claim 2, wherein the second component is a third guide rail, a sliding groove is fixed at one end of the second guide rail, which is slidably connected with the third guide rail, and the third guide rail is arranged in the sliding groove to slide.

7. The second-order flexible fixture of claim 6, wherein a fourth guide rail is arranged on the second base, and the third clamping member and the fourth clamping member are both arranged on the fourth guide rail and are slidably connected with the fourth guide rail; a third sliding part and a fourth sliding part are respectively arranged on the third clamping part and the fourth clamping part; and the third sliding part and the fourth sliding part are both connected with the fourth guide rail in a sliding manner along a third direction.

8. The second order flexible fixture of claim 7, wherein the third and fourth slides have third and fourth slide cavities, respectively, and the fourth guide rail slides within the third and fourth slide cavities; the third sliding cavity and the fourth sliding cavity are respectively provided with a third guide rail fitting piece and a fourth guide rail fitting piece, and the third guide rail fitting piece and the fourth guide rail fitting piece are used for sliding in a matched manner with the fourth guide rail.

9. The second-order flexible fixture of claim 8, wherein the first, second, third and fourth clamping members respectively comprise a first, second, third and fourth connecting member arranged along a horizontal direction and a first, second, third and fourth abutting member arranged along a vertical direction; the first abutting piece, the second abutting piece, the third abutting piece and the fourth abutting piece are respectively used for abutting against the first object clamp, the second object clamp, the third object clamp and the fourth object clamp;

one end of each of the first connecting piece, the second connecting piece, the third connecting piece and the fourth connecting piece is connected with the first abutting piece, the second abutting piece, the third abutting piece and the fourth abutting piece respectively, the other end of each of the first connecting piece, the second connecting piece, the third connecting piece and the fourth connecting piece is connected with the first cylinder, the second cylinder, the third cylinder and the fourth cylinder respectively, the first cylinder, the second cylinder, the third cylinder and the fourth cylinder drive the first connecting piece, the second connecting piece, the third connecting piece and the fourth connecting piece to move up and down respectively, so that the first abutting piece, the second abutting piece, the third abutting piece and the fourth abutting piece also move up and down respectively, and the first abutting piece, the second abutting piece, the third abutting piece and the fourth abutting piece move down to abut against the first clamping object, the second clamping object, the third clamping object and the fourth clamping object respectively, thereby fixing the first clamping object, A second clamp, a third clamp and a fourth clamp.

10. A second-order flexible fixture applied to a second-order stepping framework, which is characterized in that the second-order flexible fixture of any one of the claims 1 to 9 is adopted, the first direction and the second direction are perpendicular to each other, the third direction and the fourth direction are perpendicular to each other, and a plane formed by the first direction and the second direction is perpendicular to a plane formed by the third direction and the fourth direction;

the first clamping object, the second clamping object, the third clamping object and the fourth clamping object are metal tubes; the first clamping objects are parallel to each other, the second clamping objects are parallel to each other, the third clamping objects are parallel to each other, and the fourth clamping objects are parallel to each other; and after the first clamping piece, the second clamping piece, the third clamping piece and the fourth clamping piece clamp and fix the first object clamp, the second object clamp, the third object clamp and the fourth object clamp respectively, the first object clamp, the second object clamp, the third object clamp and the fourth object clamp are welded and fixed.

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