Clamping device

Abstract

The utility model discloses a clamping device. The clamping device comprises a base; the first moving structure is adjustably installed on the base in the first direction, and the first moving structure is elastically connected with a first elastic piece in the first direction; the second moving structure is adjustably mounted on the first moving structure in the second direction; and the clamping structure is rotatably mounted on the second moving structure through a mounting plate, the clamping structure is suitable for clamping the steering shaft in the third direction, and a positioning hole connected with the steering shaft in an inserted mode in the third direction is formed in the clamping structure. According to the clamping device, the clamping structure can adjust the position in a self-adaptive mode in the process of clamping the steering shaft, so that the reliability of clamping the steering shaft by the clamping structure can be guaranteed, damage to the steering shaft can be avoided, the production quality of a steering gear is improved, the using effect is better, and the application range is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft parts manufacturing, in particular to a clamping device. Background Art

[0002] The steering gear can be used in the vehicle to appropriately transform the steering torque and steering angle from the steering wheel, and then output it to the steering tie rod mechanism to steer the vehicle. In the assembly and production of the steering gear, the steering shaft of the steering gear needs to be fixed, and the steering shaft of the steering gear is usually at a certain angle to the horizontal plane. The steering shaft of the steering gear is usually fixed directly with a chuck, but it is difficult to adjust the center axis of the chuck and the steering shaft of the steering gear to be completely aligned, so that there will be a large deviation between the center axis of the chuck and the steering shaft of the steering gear, which reduces the reliability of clamping and causes the chuck to damage the steering shaft of the steering gear during the clamping process. There is room for improvement. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a clamping device that can ensure the reliability of the clamping structure clamping the steering shaft, avoid damage to the steering shaft, and improve the production quality of the steering gear.

[0004] According to the clamping device of the embodiment of the utility model, it includes: a base; a first movable structure, the first movable structure is adjustably installed on the base along a first direction, and the first movable structure is elastically connected to a first elastic member along the first direction; a second movable structure, the second movable structure is adjustably installed on the first movable structure along the second direction; a clamping structure, the clamping structure is rotatably installed on the second movable structure through a mounting plate, the clamping structure is suitable for clamping the steering shaft along a third direction, and the clamping structure is formed with a positioning hole that is plugged into the steering shaft along the third direction.

[0005] According to the clamping device of the embodiment of the utility model, a first movable structure which can be adjusted along a first direction is provided, and the first movable structure is elastically connected to a first elastic member along the first direction, so that the clamping structure can adaptively adjust its position during the process of clamping the steering shaft, thereby ensuring the reliability of the clamping structure clamping the steering shaft and avoiding damage to the steering shaft, thereby improving the production quality of the steering gear, achieving better use effect and a wider range of applications.

[0006] According to the clamping device of some embodiments of the utility model, the clamping structure includes a first movable plate and a second movable plate, the first movable plate is movably mounted on the mounting plate along a third direction, the second movable plate is movably mounted on the first movable plate along a fourth direction, and a second elastic member that is retractable along the fourth direction is elastically connected between the first movable plate and the second movable plate, and the fourth direction is perpendicular to the third direction.

[0007] According to the clamping device of some embodiments of the present invention, the first movable plate is provided with a baffle portion, the baffle portion and the second movable plate are spaced apart and relatively distributed along the fourth direction and form a first installation gap, and the second elastic member is installed in the first installation gap.

[0008] According to the clamping device of some embodiments of the utility model, the mounting plate is provided with a first guide rail, the first movable plate is provided with a first slider, and the first slider is suitable for moving along the first guide rail;

[0009] And / or, the first movable plate is provided with a second guide rail, the second movable plate is provided with a second slider, and the second slider is suitable for moving along the second guide rail.

[0010] According to some embodiments of the present invention, the clamping device further includes a first adjusting structure, wherein the first adjusting structure is used to drive the first moving structure to move along the first direction;

[0011] Among them, the first adjustment structure includes a first transmission shaft and a first connecting block, the first transmission shaft is extended along the first direction and is rotatable relative to the base, the first elastic member is connected between the first connecting block and the first movable structure, and the first transmission shaft is suitable for driving the first connecting block to drive the first elastic member and the first movable structure to move along the first direction when rotating.

[0012] According to the clamping device of some embodiments of the utility model, the first movable structure is provided with an installation groove, the first connecting block extends into the installation groove, a guide shaft passing through the first connecting block is provided in the installation groove, the first elastic member is sleeved outside the guide shaft and the two ends are respectively connected to the first connecting block and the inner wall of the installation groove.

[0013] According to the clamping device of some embodiments of the utility model, two first elastic members are provided, and the two first elastic members are symmetrically distributed on both sides of the first connecting block in the first direction;

[0014] And / or, the first connection block is provided with a first limiting portion, the installation slot is provided with a second limiting portion, and the first limiting portion is adapted to be limited against the second limiting portion when the first connection block moves to a maximum position relative to the installation slot;

[0015] And / or, the first transmission shaft and the first connecting block are connected by threads;

[0016] And / or, a first hand wheel is provided at one end of the first transmission shaft, and the first hand wheel is suitable for driving the first transmission shaft to rotate.

[0017] According to the clamping device of some embodiments of the utility model, the first movable structure is provided with a second transmission shaft extending along the second direction, the second movable structure is provided with a second connecting block, the second transmission shaft is passed through the second connecting block and is suitable for driving the second connecting block to move along the second direction;

[0018] And / or, the rotation axis of the mounting plate is arranged parallel to the first direction.

[0019] According to the clamping device of some embodiments of the utility model, the first movable structure is provided with a third guide rail extending along the second direction, and the second movable structure is provided with a third slider, and the third slider is suitable for sliding along the third guide rail;

[0020] And / or, the second transmission shaft and the second connecting block are connected by threads;

[0021] And / or, a second hand wheel is provided at one end of the second transmission shaft, and the second hand wheel is suitable for driving the second transmission shaft to rotate.

[0022] According to the clamping device of some embodiments of the present invention, the second movable structure is provided with a first guide portion, and the mounting plate is provided with a second guide portion, and the first guide portion is suitable for guiding and cooperating with the second guide portion when the mounting plate rotates relative to the second movable structure.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 The structure of the clamping device according to the embodiment of the utility model is shown in FIG. Figure 1 ;

[0026] Figure 2 The structure of the clamping device according to the embodiment of the utility model is shown in FIG. Figure 2 ;

[0027] Figure 3is a partial cross-sectional view of a clamping device according to an embodiment of the utility model;

[0028] Figure 4 is a structural schematic diagram of a second movable structure and a mounting plate according to an embodiment of the utility model;

[0029] Figure 5 is a structural schematic diagram of a mounting plate and a clamping structure according to an embodiment of the utility model;

[0030] Figure 6 is a partial cross-sectional view of a clamping structure according to an embodiment of the utility model;

[0031] Figure 7 The structure of the clamping device according to the embodiment of the utility model is shown in FIG. Figure 3 ;

[0032] Figure 8 The clamping process of the clamping device according to the embodiment of the utility model is schematically shown in FIG. Figure 1 ;

[0033] Fig. 9 The clamping process of the clamping device according to the embodiment of the utility model is schematically shown in FIG. Figure 2 ;

[0034] Fig.10 The clamping process of the clamping device according to the embodiment of the utility model is schematically shown in FIG. Figure 3 .

[0035] Reference numerals:

[0036] Clamping device 100,

[0037] Base 1, fourth guide rail 11, mounting seat 2, steering gear 3, steering shaft 31,

[0038] The first moving structure 4, the mounting groove 41, the second limiting portion 42, the guide shaft 43, the wear-resistant sleeve 44, the second transmission shaft 45, the second hand wheel 46, the third guide rail 47, the fourth slider 48,

[0039] The second moving structure 5, the second connecting block 51, the third sliding block 52, the first guide portion 53, the bearing 54,

[0040] Clamping structure 6, first movable plate 61, baffle portion 611, first installation gap 612, bolt 613, first slider 614, second guide rail 615, second movable plate 62, second slider 621, clamping member 63, positioning hole 631, clamping plate 632, reinforcing plate 64, mounting plate 65, first guide rail 651, driving member 66, output shaft 661,

[0041] first adjusting structure 7, first transmission shaft 71, first hand wheel 72, first connecting block 73, sliding sleeve 731, second installation gap 74, nut 75, first limiting portion 76, installation block 77,

[0042] A first elastic member 8 and a second elastic member 9. DETAILED DESCRIPTION

[0043] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0044] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] Reference below Figure 1-Figure 10 The clamping device 100 according to the embodiment of the present utility model can ensure the reliability of the clamping structure 6 on the steering shaft 31, avoid damage to the steering shaft 31, and improve the production quality of the steering gear 3.

[0047] like Figure 1-Figure 10 As shown, a clamping device 100 according to an embodiment of the present utility model comprises: a base 1 , a first movable structure 4 , a second movable structure 5 and a clamping structure 6 .

[0048] The first movable structure 4 is adjustably mounted on the base 1 along the first direction, and the first movable structure 4 is elastically connected to the first elastic member 8 along the first direction, the second movable structure 5 is adjustably mounted on the first movable structure 4 along the second direction, the clamping structure 6 is rotatably mounted on the second movable structure 5 through the mounting plate 65, the clamping structure 6 is suitable for clamping the steering shaft 31 along the third direction, and the clamping structure 6 is formed with a positioning hole 631 which is plugged into the steering shaft 31 along the third direction.

[0049] Among them, the steering gear 3 is arranged inside the vehicle, and the steering gear 3 is connected to the steering wheel. The steering gear 3 can appropriately transform the steering torque and steering angle from the steering wheel, and then output them to the steering rod mechanism, so that the vehicle can steer. During the assembly production process of the steering gear 3, the steering shaft 31 of the steering gear 3 needs to be fixed by the clamping device 100, which can facilitate the manufacture of the steering gear 3 and improve the efficiency of manufacturing and assembly.

[0050] Specifically, the clamping device 100 is provided with a base 1, which is set to a plate-like structure and can be set to a rectangle, etc., and a mounting hole is set on the base 1. The remaining components of the clamping device 100 can be fixed on the base 1 by bolts and other connecting parts, thereby ensuring the reliability of clamping the steering shaft 31, and the clamping device 100 is provided with a first movable structure 4, which is installed on the base 1 and its position relative to the base 1 can be adjusted along the first direction, that is, the first movable structure 4 can move relative to the base 1 along the first direction, thereby improving the flexibility of the clamping structure 6, the first movable structure 4 can be set to a plate-like structure, etc., and the first movable structure 4 is connected to a first elastic member 8, the first elastic member 8 can be set to a spring, etc., the first elastic member 8 is extended along the first direction, that is, the first elastic member 8 can be elastically connected to the first movable structure 4 along the first direction, so that the first movable structure 4 can apply a force to the first elastic member 8 in the first direction, and the first elastic member 8 can also apply an elastic force along the first direction to the first movable structure 4.

[0051] Furthermore, the clamping device 100 is also provided with a second movable structure 5, which is installed on the first movable structure 4, and the second movable structure 5 can move along the second direction relative to the first movable structure 4, thereby improving the flexibility of the clamping structure 6, and the second movable structure 5 can be set as a plate-like structure, etc., and the clamping device 100 is also provided with a clamping structure 6, which can clamp the steering shaft 31 along the third direction, and the clamping structure 6 can be rotatably installed on the second movable structure 5 through the mounting plate 65, so that the clamping structure 6 can be moved through the first movable structure 4 and the second movable structure 5, thereby making the clamping device 100 adaptable to steering gears 3 of different specifications, thereby improving the scope of application of the clamping device 100, wherein the first direction, the second direction and the third direction can be set according to actual production conditions.

[0052] The clamping structure 6 is formed with a positioning hole 631 that is plugged into the steering shaft 31 along the third direction. When the clamping device 100 needs to clamp the steering shaft 31, the positions of the first movable structure 4, the second movable structure 5 and the mounting plate 65 can be adjusted so that the steering shaft 31 can be placed in the positioning hole 631, and then the steering shaft 31 is clamped by the clamping device 100. During the clamping process, the axis of the steering shaft 31 and the axis of the positioning hole 631 may be offset, so that the steering shaft 31 and the positioning hole 631 are aligned. During the process, the steering shaft 31 will apply a force along the first direction to the hole wall of the positioning hole 631, and the force can be transmitted to the second movable structure 5 through the clamping device 100, and then transmitted to the first movable structure 4, so that the first movable structure 4 can move along the first direction, and then the first elastic member 8 can be pressed, that is, the first movable structure 4 can adaptively move along the first direction, ensuring the reliability of the clamping structure 6 on the steering shaft 31, and avoiding damage to the steering shaft 31, thereby improving the production quality of the steering gear 3.

[0053] According to the clamping device 100 of the embodiment of the utility model, a first movable structure 4 which can be adjusted along a first direction is provided, and the first movable structure 4 is elastically connected to a first elastic member 8 along the first direction, so that the clamping structure 6 can adaptively adjust its position during the process of clamping the steering shaft 31, thereby ensuring the reliability of the clamping structure 6 clamping the steering shaft 31 and avoiding damage to the steering shaft 31, thereby improving the production quality of the steering gear 3, achieving better use effect and a wider range of applications.

[0054] In some embodiments, the clamping structure 6 includes a first movable plate 61 and a second movable plate 62, the first movable plate 61 is movably mounted on the mounting plate 65 along a third direction, the second movable plate 62 is movably mounted on the first movable plate 61 along a fourth direction, and a second elastic member 9 is elastically connected between the first movable plate 61 and the second movable plate 62 and is retractable along the fourth direction, and the fourth direction is perpendicular to the third direction.

[0055] Specifically, Figure 5 As shown, the clamping device 100 is provided with a clamping structure 6, which can be rotatably installed on the second movable structure 5, and the clamping structure 6 is provided with a first movable plate 61 and a second movable plate 62. The first movable plate 61 and the second movable plate 62 can both be set as plate-like structures. The first movable plate 61 is installed on the mounting plate 65. The first movable plate 61 can move along a third direction relative to the mounting plate 65. The clamping structure 6 is suitable for clamping the steering shaft 31 along the third direction. The clamping structure 6 can approach or move away from the steering shaft 31 through the first movable plate 61, and then the steering shaft 31 can be placed in the positioning hole 631.

[0056] Furthermore, the second movable plate 62 is mounted on the first movable plate 61 and can move along the fourth direction relative to the first movable plate 61. A second elastic member 9 is further provided between the first movable plate 61 and the second movable plate 62. The second elastic member 9 can be provided as a spring, etc. The second elastic member 9 is extended along the fourth direction, and the two ends of the second elastic member 9 are respectively pressed against the first movable plate 61 and the second movable plate 62. During the clamping process, the axis of the steering shaft 31 and the axis of the positioning hole 631 may be offset, etc., so that during the alignment of the steering shaft 31 and the positioning hole 631, the steering shaft 31 is not in the state of being offset. 1 will apply a force along the fourth direction to the hole wall of the positioning hole 631, and the force can be transmitted to the second movable plate 62, so that the second movable plate 62 can move along the fourth direction, and then can act on the second elastic member 9, that is, the second movable plate 62 can adaptively move along the fourth direction, thereby ensuring the reliability of the clamping structure 6 on the steering shaft 31, avoiding damage to the steering shaft 31, and improving the production quality of the steering gear 3, and the fourth direction is perpendicular to the third direction, and the third direction and the fourth direction can be adjusted according to the rotation angle of the mounting plate 65 relative to the second movable structure 5.

[0057] In some embodiments, the first movable plate 61 is provided with a baffle portion 611 , which is spaced apart from the second movable plate 62 and arranged opposite to each other along the fourth direction and forms a first installation gap 612 , in which the second elastic member 9 is installed.

[0058] Specifically, Figure 5 As shown, the clamping structure 6 is provided with a first movable plate 61 which can be moved along a third direction relative to the mounting plate 65, and the first movable plate 61 is provided with a baffle portion 611, the baffle portion 611 is connected to the main body of the first movable plate 61 by a bend, and is vertically arranged on one side of the main body of the first movable plate 61, the baffle portion 611 is located below the second movable plate 62, and the baffle portion 611 and the second movable plate 62 are arranged opposite to each other along a fourth direction, and there is an installation gap between the second movable plate 62 and the baffle portion 611, and the second elastic member 9 can be arranged in the installation gap, that is, the two ends of the second elastic member 9 can be pressed against the second movable plate 62 and the baffle portion 611 respectively.

[0059] Furthermore, if Figure 6 As shown, a bolt 613 extending along the fourth direction is provided between the baffle portion 611 and the second movable plate 62, and the second elastic member 9 is sleeved outside the bolt 613, so that the bolt 613 can guide and limit the second elastic member 9, and the bolt 613 is not completely screwed into the second movable plate 62, so that the second movable plate 62 can still move along the fourth direction relative to the first movable plate 61, and the second elastic member 9 and the bolt 613 can be set to two to ensure structural reliability. The second movable plate 62 can exert a force on the second elastic member 9 under the action of gravity, so that the second elastic member 9 is in a compressed state.

[0060] In some embodiments, the mounting plate 65 is provided with a first guide rail 651, the first movable plate 61 is provided with a first slider 614, and the first slider 614 is suitable for moving along the first guide rail 651; and / or, the first movable plate 61 is provided with a second guide rail 615, the second movable plate 62 is provided with a second slider 621, and the second slider 621 is suitable for moving along the second guide rail 615.

[0061] Specifically, the first movable plate 61 is mounted on the mounting plate 65 and can move along the third direction relative to the mounting plate 65. Figure 5 As shown, the mounting plate 65 is provided with a first guide rail 651, and the first movable plate 61 is provided with a first slider 614. The first slider 614 can cooperate with the first guide rail 651, so that the first slider 614 can move along the first guide rail 651, that is, the first movable plate 61 can move along the first guide rail 651, and the first guide rail 651 is extended along the third direction, so that the first movable plate 61 can move along the third direction. In this embodiment, two first guide rails 651 can be provided, and the two first guide rails 651 are spaced apart and distributed along the fourth direction. The slider 614 is also provided in number, and the two first sliders 614 and the two first guide rails 651 are provided correspondingly, thereby ensuring the reliability of the cooperation between the mounting plate 65 and the first movable plate 61, and a driving member 66 is fixedly installed on the mounting plate 65, and the driving member 66 can be provided as a driving motor, etc. The driving member 66 is located on the side of the first movable plate 61 away from the steering shaft 31, and the driving member 66 is provided with an output shaft 661, and the output shaft 661 is connected to the first movable plate 61, thereby driving the first movable plate 61 to move along the third direction relative to the mounting plate 65.

[0062] Furthermore, the second movable plate 62 is mounted on the first movable plate 61 and can move along a fourth direction relative to the first movable plate 61, such as Figure 5As shown, the first movable plate 61 is provided with a second guide rail 615, and the second movable plate 62 is provided with a second slider 621. The second slider 621 can cooperate with the second guide rail 615, so that the second slider 621 can move along the second guide rail 615, that is, the second movable plate 62 can move along the second guide rail 615, and the second guide rail 615 is extended along the fourth direction, so that the second movable plate 62 can move along the fourth direction. In this embodiment, the second guide rail 615 can be set to two, and the two second guide rails 615 are distributed spaced apart along the third direction, and the second slider 621 is also set to two. The two second sliders 621 and the two second guide rails 615 are correspondingly arranged, so as to ensure the reliability of the cooperation between the second movable plate 62 and the first movable plate 61.

[0063] Among them, Figure 5 As shown, the clamping structure 6 is provided with a clamping member 63, and the clamping member 63 is provided with a clamping plate 632. The clamping plate 632 and the second movable plate 62 are vertically arranged. The clamping member 63 can be fixedly connected to the second movable plate 62 through the clamping plate 632, and a reinforcing plate 64 is arranged between the clamping plate 632 and the second movable plate 62, thereby ensuring the structural strength of the clamping structure 6 and improving reliability.

[0064] In some embodiments, the clamping device 100 also includes a first adjustment structure 7, which is used to drive the first movable structure 4 to move along the first direction; wherein the first adjustment structure 7 includes a first transmission shaft 71 and a first connecting block 73, the first transmission shaft 71 is extended along the first direction and is rotatable relative to the base 1, and a first elastic member 8 is connected between the first connecting block 73 and the first movable structure 4, and the first transmission shaft 71 is suitable for driving the first connecting block 73 to drive the first elastic member 8 and the first movable structure 4 to move along the first direction when rotating.

[0065] Specifically, Figure 1-Figure 2 As shown, the clamping device 100 is further provided with a first adjustment structure 7, the first adjustment structure 7 is connected to the base 1 by bolts, etc., and the first adjustment structure 7 can be connected to the first movable structure 4, the first adjustment structure 7 can drive the first movable structure 4 to move along the first direction, and as shown Figure 1 As shown, the first adjustment structure 7 is provided with a first transmission shaft 71 and a first connecting block 73. The first transmission shaft 71 can be set as a structure such as a screw. The first transmission shaft 71 is extended along the first direction, and both ends of the first transmission shaft 71 can be rotatably mounted on the base 1 through mounting blocks 77. The first transmission shaft 71 is passed through the first connecting block 73, and a nut 75 is provided between the first transmission shaft 71 and the first connecting block 73, so that when the first transmission shaft 71 rotates, the first connecting block 73 can move along the first direction.

[0066] Furthermore, the first elastic member 8 is arranged between the first connecting block 73 and the first movable structure 4, that is, the two ends of the first elastic member 8 can be pressed against the first connecting block 73 and the first movable structure 4 respectively, when the first connecting block 73 moves, a force can be applied to the first movable structure 4 through the first elastic member 8, and when the first movable structure 4 moves, a force can be applied to the first connecting block 73 through the first elastic member 8, so that when the first transmission shaft 71 rotates, it can drive the first connecting block 73 to drive the first elastic member 8 and the first movable structure 4 to move along the first direction, so as to adjust the position of the clamping structure 6 relative to the steering shaft 31, thereby improving the applicability of the clamping device 100.

[0067] In some embodiments, the first movable structure 4 is provided with an installation groove 41, the first connecting block 73 extends into the installation groove 41, and a guide shaft 43 is provided in the installation groove 41 and passes through the first connecting block 73. The first elastic member 8 is sleeved outside the guide shaft 43 and its two ends are respectively connected to the first connecting block 73 and the inner wall of the installation groove 41.

[0068] Specifically, Figure 1 As shown, the first movable structure 4 is provided with a mounting groove 41, the mounting groove 41 is openly arranged toward the first connecting block 73, and the first connecting block 73 can extend into the mounting groove 41 from the open side, as shown in FIG. Figure 3 As shown, a guide shaft 43 is provided in the mounting groove 41, the guide shaft 43 is connected between two opposite inner walls of the mounting groove 41 and extends along the first direction, the guide shaft 43 passes through the first connecting block 73, that is, the first connecting block 73 can move along the guide shaft 43, and a wear-resistant sleeve 44 is provided on the outer sleeve of the guide shaft 43, the wear-resistant sleeve 44 also passes through the first connecting block 73, the two ends of the wear-resistant sleeve 44 are pressed between the two opposite inner walls of the mounting groove 41, and a sliding sleeve 731 is provided between the mounting block 77 and the wear-resistant sleeve 44, and the sliding sleeve 731 can be set as a copper sleeve, etc., to improve the smoothness of the sliding of the first connecting block 73 relative to the wear-resistant sleeve 44.

[0069] Furthermore, the first elastic member 8 can be sleeved on the outside of the guide shaft 43, and the two ends of the first elastic member 8 are respectively connected to the first connecting block 73 and the inner wall of the mounting groove 41, that is, when the first movable structure 4 moves along the first direction, the inner wall of the mounting groove 41 can act on the first elastic member 8, and when the first connecting block 73 moves along the first direction, the first connecting block 73 can also act on the first elastic member 8, so that when the steering shaft 31 applies a force along the first direction to the clamping structure 6, the first movable structure 4 can move relative to the first connecting block 73, and when the force is removed, the first elastic member 8 can be reset, thereby realizing the self-adaptation of the first movable structure 4 along the first direction.

[0070] In some embodiments, two first elastic members 8 are provided, and the two first elastic members 8 are symmetrically distributed on both sides of the first connecting block 73 in the first direction; and / or, the first connecting block 73 is provided with a first limiting portion 76, and the mounting groove 41 is provided with a second limiting portion 42, and the first limiting portion 76 is suitable for limiting and abutting against the second limiting portion 42 when the first connecting block 73 moves to the maximum position relative to the mounting groove 41; and / or, the first transmission shaft 71 and the first connecting block 73 are connected by threads; and / or, a first hand wheel 72 is provided at one end of the first transmission shaft 71, and the first hand wheel 72 is suitable for driving the first transmission shaft 71 to rotate.

[0071] Specifically, Figure 3 As shown, the first movable structure 4 is provided with a mounting groove 41, and the mounting groove 41 is open toward the first connecting block 73, and the first connecting block 73 can extend into the mounting groove 41 from the open side, and there is a second mounting gap 74 between the first connecting block 73 and the mounting groove 41, and the second mounting gap 74 is formed on both sides of the first connecting block 73, and the first elastic member 8 is provided with two, and the two first elastic members 8 are symmetrically distributed on both sides of the first connecting block 73 in the first direction, and the two first elastic members 8 are both arranged in the second mounting gap 74 on both sides of the first connecting block 73, so that when the first connecting block 73 moves respectively along the first direction toward both sides of the first connecting block 73 relative to the mounting groove 41, both can act on the first elastic member 8 respectively.

[0072] The first connecting block 73 is provided with a first limiting portion 76, and the mounting slot 41 is provided with a second limiting portion 42. The first limiting portion 76 and the second limiting portion 42 can both be set as screws, and the first limiting portion 76 can be limited and offset by the second limiting portion 42 when the first connecting block 73 moves to the maximum position relative to the mounting slot 41, thereby limiting the moving distance of the first connecting block 73 relative to the mounting slot 41, avoiding damage to the first elastic member 8, and extending the service life of the first elastic member 8. At the same time, the first transmission shaft 71 and the first connecting block 73 are connected by threads, so that when the first transmission shaft 71 rotates, the first connecting block 73 can move along the first direction, and a first hand wheel 72 can be further provided at one end of the first transmission shaft 71, and the first hand wheel 72 can drive the first transmission shaft 71 to rotate, thereby facilitating adjustment of the position of the first movable structure 4 in the first direction and saving adjustment time.

[0073] In some embodiments, the first movable structure 4 is provided with a second transmission shaft 45 extending along the second direction, the second movable structure 5 is provided with a second connecting block 51, the second transmission shaft 45 passes through the second connecting block 51 and is suitable for driving the second connecting block 51 to move along the second direction; and / or, the rotation axis of the mounting plate 65 is arranged parallel to the first direction.

[0074] Specifically, Figure 1-Figure 2As shown, the first movable structure 4 is provided with a second transmission shaft 45, and the second transmission shaft 45 is extended along the second direction. The second transmission shaft 45 can be set as a structure such as a screw, and the second movable structure 5 is provided with a second connecting block 51. The second transmission shaft 45 is passed through the second connecting block 51, so that the second transmission shaft 45 can drive the second connecting block 51 to move along the second direction during the rotation process, and then the second transmission shaft 45 can drive the second movable structure 5 to move along the second direction during the rotation process.

[0075] Furthermore, the clamping structure 6 is rotatably mounted on the second movable structure 5 via a mounting plate 65, and the rotation axis of the mounting plate 65 can be set to be parallel to the first direction, so that the plane where the mounting plate 65 is located is always set perpendicular to the first direction, which is convenient for adjusting the position of the clamping structure 6 relative to the steering shaft 31.

[0076] In some embodiments, the first movable structure 4 is provided with a third guide rail 47 extending along the second direction, and the second movable structure 5 is provided with a third slider 52, and the third slider 52 is suitable for sliding along the third guide rail 47; and / or, the second transmission shaft 45 and the second connecting block 51 are connected by threads; and / or, a second hand wheel 46 is provided at one end of the second transmission shaft 45, and the second hand wheel 46 is suitable for driving the second transmission shaft 45 to rotate.

[0077] Specifically, the second moving structure 5 is installed on the first moving structure 4 and can move along the second direction relative to the first moving structure 4. Figure 1 As shown, the first movable structure 4 is provided with a third guide rail 47, and the second movable structure 5 is provided with a third slider 52. The third slider 52 can cooperate with the third guide rail 47, so that the third slider 52 can move along the third guide rail 47, that is, the second movable structure 5 can move along the third guide rail 47, and the third guide rail 47 is extended along the second direction, so that the second movable structure 5 can move along the second direction. In this embodiment, the third guide rail 47 can be set to two, and the two third guide rails 47 are distributed at intervals, and the third slider 52 is also set to two. The two third sliders 52 and the two third guide rails 47 are correspondingly arranged, so as to ensure the reliability of the cooperation between the second movable structure 5 and the first movable structure 4.

[0078] The first movable structure 4 is mounted on the base 1 and can move along a first direction relative to the base 1. Figure 7As shown, the base 1 is provided with a fourth guide rail 11, and the first movable structure 4 is provided with a fourth slider 48. The fourth slider 48 can cooperate with the fourth guide rail 11, so that the fourth slider 48 can move along the fourth guide rail 11, that is, the first movable structure 4 can move along the fourth guide rail 11, and the fourth guide rail 11 is extended along the first direction, so that the first movable structure 4 can move along the first direction. In this embodiment, the fourth guide rail 11 can be set to two, and the two fourth guide rails 11 are distributed at intervals, and the fourth slider 48 is also set to two. The two fourth sliders 48 and the two fourth guide rails 11 are correspondingly arranged, thereby ensuring the reliability of the cooperation between the first movable structure 4 and the base 1.

[0079] Furthermore, the second transmission shaft 45 and the second connection block 51 are connected by threads, so that when the second transmission shaft 45 rotates, the second connection block 51 can move along the second direction, and Figure 1-Figure 2 As shown, a second hand wheel 46 may be further provided at one end of the second transmission shaft 45, and the second hand wheel 46 may drive the second transmission shaft 45 to rotate, thereby facilitating adjustment of the position of the second movable structure 5 in the second direction and saving adjustment time.

[0080] In some embodiments, the second movable structure 5 is provided with a first guide portion 53 , and the mounting plate 65 is provided with a second guide portion. The first guide portion 53 is adapted to cooperate with the second guide portion when the mounting plate 65 rotates relative to the second movable structure 5 .

[0081] Specifically, the second movable structure 5 is provided with a first guide portion 53, and the mounting plate 65 is provided with a second guide portion. One of the first guide portion 53 and the second guide portion can be set as a guide groove, and the other can be set as a screw, etc., that is, when the first guide portion 53 is set as a guide groove, the second guide portion is set as a guide screw, and when the first guide portion 53 is set as a guide screw, the second guide portion is set as a guide groove. In this embodiment, Figure 4 As shown, the first guide portion 53 is configured as a guide groove, and the second guide portion is configured as a guide screw. The guide screw can extend into the guide groove, so that the first guide portion 53 is suitable for guiding and cooperating with the second guide portion when the mounting plate 65 rotates relative to the second movable structure 5, thereby ensuring the reliability of the rotation of the mounting plate 65 relative to the second movable structure 5, and after determining the position of the mounting plate 65 relative to the second movable structure 5, the position of the guide screw can be changed to lock the positional relationship between the mounting plate 65 and the second movable structure 5.

[0082] The second movable structure 5 is provided with a bearing 54, the outer ring of the bearing 54 is fixedly connected to the second movable structure 5 by bolts, etc., and the inner ring of the bearing 54 is fixedly connected to the mounting plate 65 by bolts, etc., so that the mounting plate 65 can rotate more smoothly relative to the second movable structure 5. At the same time, the steering gear 3 can be fixedly installed on the mounting seat 2 by bolts, etc., the mounting seat 2 is configured as a plate-like structure, and the mounting seat 2 is arranged parallel to the base 1. The mounting seat 2 is staggered with the base 1 along the second direction and is arranged above the base 1.

[0083] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0084] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A clamping device, characterized in that: include: Base; a first movable structure, wherein the first movable structure is adjustably mounted on the base along a first direction, and the first movable structure is elastically connected to a first elastic member along the first direction; a second movable structure, the second movable structure being adjustably mounted on the first movable structure along a second direction; A clamping structure is rotatably mounted on the second movable structure through a mounting plate, the clamping structure is suitable for clamping the steering shaft along a third direction, and the clamping structure is formed with a positioning hole that is plugged into the steering shaft along the third direction.

2. The clamping device according to claim 1, characterized in that The clamping structure includes a first movable plate and a second movable plate, the first movable plate is movably mounted on the mounting plate along a third direction, the second movable plate is movably mounted on the first movable plate along a fourth direction, and a second elastic member that is retractable along the fourth direction is elastically connected between the first movable plate and the second movable plate, and the fourth direction is perpendicular to the third direction.

3. The clamping device according to claim 2, characterized in that: The first movable plate is provided with a baffle portion, the baffle portion and the second movable plate are spaced apart and arranged opposite to each other along the fourth direction and a first installation gap is formed, and the second elastic member is installed in the first installation gap.

4. The clamping device according to claim 2, characterized in that: The mounting plate is provided with a first guide rail, and the first movable plate is provided with a first slider, and the first slider is suitable for moving along the first guide rail; And / or, the first movable plate is provided with a second guide rail, the second movable plate is provided with a second slider, and the second slider is suitable for moving along the second guide rail.

5. The clamping device according to any one of claims 1 to 4, characterized in that: Also includes a first adjustment structure, wherein the first adjustment structure is used to drive the first moving structure to move along the first direction; Among them, the first adjustment structure includes a first transmission shaft and a first connecting block, the first transmission shaft is extended along the first direction and is rotatable relative to the base, the first elastic member is connected between the first connecting block and the first movable structure, and the first transmission shaft is suitable for driving the first connecting block to drive the first elastic member and the first movable structure to move along the first direction when rotating.

6. The clamping device according to claim 5, characterized in that The first movable structure is provided with an installation groove, the first connecting block extends into the installation groove, a guide shaft passing through the first connecting block is provided in the installation groove, the first elastic member is sleeved outside the guide shaft and the two ends are respectively connected to the first connecting block and the inner wall of the installation groove.

7. The clamping device according to claim 6, characterized in that The first elastic members are provided in two pieces, and the two first elastic members are symmetrically distributed on two sides of the first connecting block in the first direction; And / or, the first connection block is provided with a first limiting portion, the installation slot is provided with a second limiting portion, and the first limiting portion is adapted to be limited against the second limiting portion when the first connection block moves to a maximum position relative to the installation slot; And / or, the first transmission shaft and the first connecting block are connected by threads; And / or, a first hand wheel is provided at one end of the first transmission shaft, and the first hand wheel is suitable for driving the first transmission shaft to rotate.

8. The clamping device according to claim 1, characterized in that: The first movable structure is provided with a second transmission shaft extending along a second direction, the second movable structure is provided with a second connecting block, the second transmission shaft passes through the second connecting block and is suitable for driving the second connecting block to move along the second direction; And / or, the rotation axis of the mounting plate is arranged parallel to the first direction.

9. The clamping device according to claim 8, characterized in that The first movable structure is provided with a third guide rail extending along the second direction, and the second movable structure is provided with a third slider, and the third slider is suitable for sliding along the third guide rail; And / or, the second transmission shaft and the second connecting block are connected by threads; And / or, a second hand wheel is provided at one end of the second transmission shaft, and the second hand wheel is suitable for driving the second transmission shaft to rotate.

10. The clamping device according to claim 1, characterized in that The second movable structure is provided with a first guide portion, and the mounting plate is provided with a second guide portion, and the first guide portion is adapted to cooperate with the second guide portion in a guiding manner when the mounting plate rotates relative to the second movable structure.

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