CN220935770U

CN220935770U - Fruit tree auxiliary grafting device

Info

Publication number: CN220935770U
Application number: CN202322353501.5U
Authority: CN
Inventors: 位杰; 蒋媛; 谢宏江; 肖欢
Original assignee: Xinjiang Production And Construction Corps Second Division Of Agricultural Science Research Institute
Current assignee: Xinjiang Production And Construction Corps Second Division Of Agricultural Science Research Institute
Priority date: 2023-08-31
Filing date: 2023-08-31
Publication date: 2024-05-14
Anticipated expiration: 2033-08-31

Abstract

The utility model discloses an auxiliary grafting device for fruit trees, which relates to the technical field of grafting and comprises the following components: the base, two guide posts bottom all fix on base top and interval arrangement, its opposite sidewall has offered the guide slot along the direction of height of the guide post; the cutting assembly comprises a cutting blade and a cutting driving assembly, and two opposite side parts of the cutting blade are correspondingly and slidably connected in the two guide grooves; the cutting driving assembly is arranged on the base, and the driving end of the cutting driving assembly is fixed with the top end of the cutting knife; the inclined supporting plate is positioned between the two guide upright posts and corresponds to the side of the cutting knife, and the bottom of the inclined supporting plate is hinged with the bottom of any guide upright post or the top end of the base; the side wall of the inclined supporting plate, which is close to the cutting knife, is a scion positioning surface; the supporting plate driving assembly is arranged on the base, and the driving end of the supporting plate driving assembly is fixed with the top of the inclined supporting plate; the utility model can adjust the cutting angle of the scion to control the length of the notch inclined plane.

Description

Fruit tree auxiliary grafting device

Technical Field

The utility model relates to the technical field of grafting, in particular to an auxiliary grafting device for fruit trees.

Background

The fruit tree grafting is to select a section of fruit tree branches as scions, and cut one end of each scion branch into an inclined plane by using a knife or a shear; whether the existing branch cutting machine is used for manually cutting branches, the cutting angle and the inclined surface shape of the scion are difficult to be kept consistent, and the cutting angle cannot be adjusted according to the needs, so that the grafting quality and the grafting survival rate are affected.

Chinese patent (grant bulletin number CN 2153931Y, grant bulletin day 1994.1.26) discloses a branch cutting machine for grafting, specifically discloses fixing a special knife holder on the base of a universal manual slip binding machine, installing a knife holder on the pressure head of the slip binding machine, and the knife holder can flexibly move up and down in the guide slot of the knife holder, thereby cutting branches. According to the technical scheme, the branch cutting operation is standardized, the cutting surface is smooth, but the inclined branch rectangular groove has a fixed inclination angle, so that the cutting angle of the scion branch is not adjustable, the requirements of different fruit tree scions on the cutting angle and the length of the cut inclined surface cannot be met, and the adaptability is poor.

Therefore, how to provide an auxiliary grafting device for fruit trees can flexibly adjust the cutting angle of scions according to grafting requirements of scions of different fruit trees so as to control the length of the inclined plane of the incision, and the auxiliary grafting device has the characteristics of convenience in operation and simple structure and is a problem to be solved by the technicians in the field.

Disclosure of utility model

In view of the above, the present utility model provides an auxiliary grafting device for fruit trees, which aims to solve the above technical problems. The auxiliary grafting device for fruit trees can flexibly adjust the cutting angle of scions according to the grafting requirements of scions of different fruit trees so as to control the length of the inclined plane of the incision, and has the advantages of convenience in operation and simple structure.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The utility model provides an auxiliary grafting device for fruit trees, which comprises:

A base, a base seat and a base seat,

The guide posts are two, and the bottom ends of the two guide posts are fixed at the top end of the base and are arranged at intervals; the opposite side walls of the two guide upright posts are provided with guide grooves along the height direction of the guide upright posts;

The cutting assembly comprises a cutting blade and a cutting driving assembly, and two opposite side parts of the cutting blade are correspondingly and slidably connected in the two guide grooves; the cutting driving assembly is arranged on the base, and the driving end of the cutting driving assembly is fixed with the top end of the cutting blade so as to drive the cutting blade to slide along the guide groove;

the inclined supporting plate is positioned between the two guide upright posts and corresponds to the side of the cutting knife, and the bottom of the inclined supporting plate is hinged with the bottom of any one guide upright post or the top end of the base; the side wall of the inclined supporting plate, which is close to the cutting knife, is a scion positioning surface;

The supporting plate driving assembly is arranged on the base, and the driving end of the supporting plate driving assembly is fixed with the top of the inclined supporting plate and can drive the inclined supporting plate to rotate in the direction away from or close to the cutting knife.

Compared with the prior art, the auxiliary grafting device for fruit trees has the advantages that when the auxiliary grafting device for fruit trees is used, a scion to be cut is placed below a cutting knife between two guide upright posts, the scion is attached to a scion locating surface of an inclined supporting plate for locating, the inclination angle of the inclined supporting plate can be adjusted by utilizing a supporting plate driving assembly according to the requirement of grafting cutting angle, so that the included angle between the cutting knife cutting direction and the length direction of the scion is changed, and the length of an inclined plane of a scion incision is controlled; the cutting driving assembly can drive the cutting blade to slide downwards along the guide groove so as to cut the scion.

As a further improvement of the technical scheme, the cutting driving assembly comprises a pressing rod, an operating rod and a fixed upright post; the fixed upright post is fixed at the top end of the base; one end of the operating rod is hinged with the top of the fixed upright post, and the other end of the operating rod is an operating handle; the pressure bar is arranged above the cutting knife, the bottom of the pressure bar is hinged with the top of the cutting knife, and the top of the pressure bar is hinged with the middle of the operating rod.

The beneficial effects of the technical scheme are as follows: the operation rod and the pressure rod are utilized, the cutting knife is driven to cut through the lever principle, the operation is convenient and labor-saving, and the processing efficiency of scion can be improved.

As a further improvement of the technical scheme, the supporting plate driving assembly comprises a sleeve, a telescopic screw and a rotating shaft;

The sleeve, the telescopic screw and the rotating shaft are all positioned at the side of the inclined supporting plate far away from the cutting knife; one end of the telescopic screw rod is arranged in an inner hole at one end of the sleeve in a penetrating way, and the telescopic screw rod and the sleeve are in threaded transmission connection; the other end of the telescopic screw is hinged with the top of the inclined supporting plate;

One end of the rotating shaft is rotationally connected with the end wall of the other end of the sleeve; the other end of the rotating shaft is hinged to the top end of the base.

The beneficial effects of the technical scheme are as follows: the sleeve and the telescopic screw rod form a threaded transmission telescopic structure, and the telescopic screw rod can extend or retract through rotating the sleeve so as to drive the inclined supporting plate to rotate around the bottom hinge position, thereby adjusting the inclination angle; and by utilizing the self-locking characteristic of thread transmission, the sleeve, the telescopic screw and the rotating shaft are combined together to play a role in supporting and fixing the inclined supporting plate.

As a further improvement of the above technical scheme, the cutting tool further comprises an elastic pressing piece, wherein the elastic pressing piece is arranged on one side of the inclined supporting plate, which is close to the cutting tool, and a gap is reserved between the elastic pressing piece and the inclined supporting plate so as to limit a scion inserting port; when the scion is inserted into the scion insertion opening, the elastic pressing piece can be abutted with the scion and tightly pressed on the scion positioning surface.

The beneficial effects of the technical scheme are as follows: the scion can be inserted from a scion inserting port between the elastic pressing piece and the inclined supporting plate; the scion is tightly attached to the scion positioning surface under the action of the elastic pressing piece, so that the positioning precision of the scion installation and the cutting stability are improved.

As a further improvement of the technical proposal, the device also comprises a chip removal component; the top end of the base is provided with a scion positioning groove; the scion positioning groove is positioned at one side of the cutting knife away from the inclined supporting plate and corresponds to the bottom end of the scion positioning surface; the chip removal assembly is arranged in the scion positioning groove.

As a further improvement of the technical scheme, the chip removal assembly comprises a chip breaking ejection plate and a spring, and the chip breaking ejection plate is movably arranged in the scion positioning groove; the top end of the spring is fixed at the bottom end of the chip breaking ejection plate, and the bottom end of the spring is fixed at the bottom of the scion positioning groove; the top end of the chip breaking ejection plate can be abutted with the bottom end of the scion to compress the spring.

The beneficial effects of the technical scheme are as follows: the scion bottom butt is at the chip breaking ejector plate top and compression spring, and the scion is cut off in the twinkling of an eye, compression spring rebound so as to drive chip breaking ejector plate to upwards launch to the chip breaking automatic ejection scion constant head tank that will cut off carries out the chip removal, in order to do benefit to the scion installation that follows, improved machining efficiency.

As a further improvement of the above technical solution, the cutting edge of the cutting blade has a preset inclination angle with respect to the sliding direction of the cutting blade.

The beneficial effects of the technical scheme are as follows: the cutting edge of the cutting knife has an inclination angle relative to the sliding direction of the cutting knife, so that the cutting effect in the cutting process can be enhanced, the cutting resistance is reduced, and the smoothness of operation is improved.

As a further improvement of the above technical solution, the preset inclination angle is θ, and 45 ° < θ <90 °.

The beneficial effects of the technical scheme are as follows: the preset inclination angle of 45 degrees < theta <90 degrees can enable the main direction of cutting force to be downward while reducing cutting resistance, and the bottom end of the scion can be tightly pressed on the chip breaking ejection plate downwards, so that the stability of positioning of the scion and rebound chip removal of broken chips are facilitated.

Compared with the prior art, the utility model discloses an auxiliary grafting device for fruit trees, which has the following advantages and beneficial effects:

1. The utility model can flexibly adjust the cutting angle of the scion according to the grafting requirements of different fruit tree scions so as to control the length of the inclined plane of the incision, and has the advantages of convenient operation and simple structure.

2. The scion is stable in positioning; the cutting knife is an inclined cutting edge, so that the cutting resistance is reduced; and the device has the chip removal function, has improved the machining efficiency of scion.

Drawings

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

FIG. 1 is a schematic diagram of the whole structure of an auxiliary grafting device for fruit trees;

FIG. 2 is a schematic diagram of the structure of a tilting pallet and a pallet driving assembly of the auxiliary grafting device for fruit trees;

FIG. 3 is a schematic view of another view angle structure of an auxiliary grafting device for fruit trees according to the utility model;

FIG. 4 is a schematic diagram of an installation position of an elastic pressing sheet of the auxiliary grafting device for fruit trees;

fig. 5 is a schematic diagram of a chip removing assembly of the fruit tree auxiliary grafting device;

FIG. 6 is a schematic diagram of the cut slope of a scion cut by the fruit tree auxiliary grafting device;

FIG. 7 is a schematic view of a broken chip portion of a scion cut by the fruit tree auxiliary grafting device of the present utility model;

FIG. 8 is a schematic diagram of the whole structure of an auxiliary grafting device for fruit trees;

In the figure: 1. a base; 11. scion positioning grooves; 2. a guide column; 21. a guide groove; 3. a cutting assembly; 31. a cutting blade; 32. a cutting drive assembly; 321. a compression bar; 322. an operation lever; 323. fixing the upright post; 4. tilting the pallet; 41. a scion positioning surface; 5. a pallet drive assembly; 51. a sleeve; 52. a telescopic screw; 53. a rotating shaft; 6. elastic tabletting; 7. a chip removal assembly; 71. a chip breaking ejection plate; 72. a spring; 8. scion; 81. a notch slope; 82. breaking scraps; 9. scion insertion opening.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1 to 8, this embodiment provides an auxiliary grafting device for fruit trees, including:

A base 1, a guide upright 2, a cutting assembly 3, an inclined pallet 4 and a pallet driving assembly 5; the two guide upright posts 2 are fixed at the top end of the base 1 by screws at intervals; the opposite side walls of the two guide posts 2 are provided with guide grooves 21 along the height direction of the guide posts 2.

The cutting assembly 3 comprises a cutting blade 31 and a cutting driving assembly 32, and two opposite side parts of the cutting blade 31 are correspondingly and slidably connected in the two guide grooves 21; a cutting driving assembly 32 is provided on the base 1, and a driving end of the cutting driving assembly 32 is fixed to a top end of the cutting blade 31 to drive the cutting blade 31 to slide along the guide groove 21.

The inclined supporting plate 4 is positioned between the two guide upright posts 2 and corresponds to the side of the cutting knife 31, and the bottom of the inclined supporting plate 4 is hinged with the bottom of any guide upright post 2 or the top end of the base 1; the side wall of the inclined pallet 4 close to the cutting blade 31 is a scion positioning surface 41.

The pallet driving component 5 is arranged on the base 1, and the driving end of the pallet driving component is fixed with the top of the inclined pallet 4, so that the inclined pallet 4 can be driven to rotate in a direction away from or approaching to the cutting knife 31.

When the device is used, the scion 8 to be cut is placed between the two guide posts 2 and below the corresponding cutting blades 31, the scion 8 is attached to the scion positioning surface 41 of the inclined supporting plate 4 for positioning, the inclined angle of the inclined supporting plate 4 can be adjusted by utilizing the supporting plate driving component 5 according to the requirement of grafting cutting angle, so that the included angle between the cutting direction of the cutting blades 31 and the length direction of the scion 8 is changed, and the length of the cut inclined plane 81 of the scion 8 is controlled; the cutting blade 31 is driven by the cutting drive assembly 32 to slide down the guide slot 21 to cut the scion 8.

In some embodiments, the cutting drive assembly 32 includes a compression bar 321, an operating bar 322, and a stationary post 323; the fixed upright post 323 is fixed at the top end of the base 1 by a screw; one end of the operating rod 322 is hinged with the top of the fixed upright 323, and the other end of the operating rod 322 is an operating handle; the pressure lever 321 is arranged above the cutting blade 31, the bottom of the pressure lever 321 is hinged with the top of the cutting blade 31, and the top of the pressure lever 321 is hinged with the middle of the operating lever 322.

The manual operation handle is held, the operation rod 322 and the pressure rod 321 are utilized, the cutting knife 31 is driven to cut through the lever principle, the operation is convenient and labor-saving, and the processing efficiency of scion can be improved.

In some embodiments, the pallet drive assembly 5 includes a sleeve 51, a jack screw 52, and a spindle 53;

The sleeve 51, the telescopic screw 52 and the rotating shaft 53 are all positioned at the side of the inclined support plate 4 away from the cutting blade 31; one end of the telescopic screw rod 52 is penetrated in an inner hole at one end of the sleeve 51, and the telescopic screw rod and the sleeve are in threaded transmission connection; the other end of the telescopic screw rod 52 is hinged with the top of the inclined supporting plate 4; one end of the rotating shaft 53 is rotatably connected with the end wall of the other end of the sleeve 51; the other end of the rotating shaft 53 is hinged at the top end of the base 1.

The sleeve 51 and the telescopic screw 52 form a threaded transmission telescopic structure, and the telescopic screw 52 can be extended or retracted by rotating the sleeve 51 so as to drive the inclined supporting plate 4 to rotate around the bottom hinge position, thereby adjusting the inclination angle; and by utilizing the self-locking characteristic of thread transmission, the sleeve 51, the telescopic screw 52 and the rotating shaft 53 are combined together to play a role in supporting and fixing the inclined supporting plate 4.

In some embodiments, further comprising an elastic press sheet 6; the elastic pressing sheet 6 is arranged on one side of the inclined supporting plate 4 close to the cutting knife 31, and a gap is reserved between the elastic pressing sheet 6 and the inclined supporting plate 4 to limit the scion inserting port 9; when the scion 8 is inserted into the scion insertion port 9, the elastic pressing piece 6 may abut against the scion 8 and press it against the scion positioning surface 41.

Specifically, the elastic pressing sheet 6 is an arc sheet, two sides of the top end of the elastic pressing sheet are correspondingly fixed with the tops of the two guide upright posts 2 by screws, and the bottom end of the elastic pressing sheet is a free end; the middle part of the elastic pressing piece 6 is a cambered surface protruding towards one side of the inclined supporting plate 4, when the scion is inserted into the scion insertion opening 9 from top to bottom along the scion positioning surface 41, the free end of the elastic pressing piece 6 is shifted towards a direction away from the inclined supporting plate 4 under the extrusion action of the scion, so that the elastic pressing piece 6 is bent to generate elastic deformation, and at the moment, the elastic pressing piece 6 can press the scion on the scion positioning surface 41. The scion is tightly attached to the scion positioning surface 41 under the abutting action of the elastic pressing piece 6, so that the positioning precision of scion installation and the cutting stability are improved.

In some embodiments, further comprises a chip removal assembly 7; a scion positioning groove 11 for positioning the bottom end of the scion is formed in the top end of the base 1; the scion positioning groove 11 is positioned at one side of the cutting knife 31 away from the inclined supporting plate 4 and corresponds to the bottom end of the scion positioning surface 41; the chip removal assembly 7 is arranged in the scion positioning slot 11.

In some embodiments, the chip removal assembly 7 comprises a chip breaking ejection plate 71 and a spring 72, the chip breaking ejection plate 71 being movably arranged in the scion positioning slot 11; the top end of the spring 72 is welded and fixed at the bottom end of the chip breaking ejection plate 71, and the bottom end of the spring 72 is fixed at the bottom of the scion positioning groove 11 by a screw; the top end of the chip ejection plate 71 may abut the bottom end of the scion to compress the spring 72.

The bottom end of the scion 8 is abutted against the top end of the chip breaking ejection plate 71 and compresses the spring 72, elastic potential energy is accumulated, and when the scion 8 is cut off, the compression spring 72 rebounds to drive the chip breaking ejection plate 71 to eject upwards, so that the cut chip breaking 82 automatically ejects out of the scion positioning groove 11 to remove chips, the following scion installation is facilitated, and the processing efficiency is improved.

Specifically, when the bottom end of the scion 8 is abutted against the top end of the chip breaking ejection plate 71 and the spring 72 is compressed, the elastic pressing piece 6 and the inclined supporting plate 4 can clamp and position the scion 8; when the cutting blade 31 cuts the scion 8 downward, a downward cutting force is generated on the scion 8, so that the bottom end of the scion 8 has enough pressing force to compress the compression spring 72.

In some embodiments, the cutting edge of the cutting blade 31 has a predetermined inclination angle with respect to the sliding direction of the cutting blade 31; the inclined cutting edge can strengthen the cutting effect in the cutting process, reduce the cutting resistance and improve the smoothness of operation.

In some embodiments, referring to fig. 8, the preset tilt angle is θ, and 45 ° < θ <90 °.

The preset inclination angle of 45 degrees < theta <90 degrees can reduce the cutting resistance and simultaneously enable the main direction of the cutting force to be downward, so that the bottom end of the scion can be tightly pressed on the chip breaking ejection plate 71, and the stability of the positioning of the scion and the rebound chip removal of broken chips are facilitated.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. The utility model provides a fruit tree auxiliary grafting device which characterized in that includes:

a base (1),

The guide posts (2) are two, and the bottom ends of the two guide posts (2) are fixed at the top end of the base (1) and are arranged at intervals; the opposite side walls of the two guide upright posts (2) are provided with guide grooves (21) along the height direction of the guide upright posts (2);

A cutting assembly (3), wherein the cutting assembly (3) comprises a cutting blade (31) and a cutting driving assembly (32), and two opposite side parts of the cutting blade (31) are correspondingly and slidably connected in the two guide grooves (21); the cutting driving assembly (32) is arranged on the base (1), and the driving end of the cutting driving assembly (32) is fixed with the top end of the cutting blade (31) so as to drive the cutting blade (31) to slide along the guide groove (21);

The inclined supporting plate (4) is positioned between the two guide upright posts (2) and corresponds to the side of the cutting knife (31), and the bottom of the inclined supporting plate (4) is hinged with the bottom of any one guide upright post (2) or the top of the base (1); the side wall of the inclined supporting plate (4) close to the cutting knife (31) is a scion positioning surface (41);

The support plate driving assembly (5), the support plate driving assembly (5) is arranged on the base (1), and the driving end of the support plate driving assembly is fixed with the top of the inclined support plate (4), so that the inclined support plate (4) can be driven to rotate in the direction away from or close to the cutting knife (31).

2. The fruit tree auxiliary grafting device according to claim 1, characterized in that the cutting drive assembly (32) comprises a compression bar (321), an operation bar (322) and a fixed upright (323); the fixed upright post (323) is fixed at the top end of the base (1); one end of the operating rod (322) is hinged with the top of the fixed upright post (323), and the other end of the operating rod (322) is an operating handle; the pressing rod (321) is arranged above the cutting knife (31), the bottom of the pressing rod (321) is hinged to the top of the cutting knife (31), and the top of the pressing rod (321) is hinged to the middle of the operating rod (322).

3. The fruit tree auxiliary grafting device according to claim 1, wherein the pallet driving assembly (5) comprises a sleeve (51), a telescopic screw (52) and a rotating shaft (53);

The sleeve (51), the telescopic screw (52) and the rotating shaft (53) are all positioned at the side of the inclined supporting plate (4) far away from the cutting knife (31); one end of the telescopic screw rod (52) is arranged in an inner hole at one end of the sleeve (51) in a penetrating way, and the telescopic screw rod and the sleeve are in threaded transmission connection; the other end of the telescopic screw rod (52) is hinged with the top of the inclined supporting plate (4);

One end of the rotating shaft (53) is rotationally connected with the end wall of the other end of the sleeve (51); the other end of the rotating shaft (53) is hinged to the top end of the base (1).

4. The fruit tree auxiliary grafting device according to claim 1, further comprising an elastic pressing sheet (6), wherein the elastic pressing sheet (6) is arranged on one side of the inclined supporting plate (4) close to the cutting knife (31), and a gap is reserved between the elastic pressing sheet (6) and the inclined supporting plate (4) to define a scion inserting port (9); when the scion (8) is inserted into the scion insertion opening (9), the elastic pressing piece (6) can be abutted with the scion (8) and pressed on the scion positioning surface (41).

5. A fruit tree auxiliary grafting device according to any one of claims 1-4, further comprising a chip removal assembly (7); a scion positioning groove (11) is formed in the top end of the base (1); the scion positioning groove (11) is positioned at one side of the cutting knife (31) away from the inclined supporting plate (4) and corresponds to the bottom end of the scion positioning surface (41); the chip removal assembly (7) is arranged in the scion positioning groove (11).

6. The fruit tree auxiliary grafting device according to claim 5, characterized in that the chip removal assembly (7) comprises a chip breaking ejection plate (71) and a spring (72), wherein the chip breaking ejection plate (71) is movably arranged in the scion positioning groove (11); the top end of the spring (72) is fixed at the bottom end of the chip breaking ejection plate (71), and the bottom end of the spring (72) is fixed at the bottom of the scion positioning groove (11); the top end of the chip breaking ejection plate (71) can be abutted with the bottom end of the scion to compress the spring (72).

7. A fruit tree auxiliary grafting device according to any one of claims 1-4, characterized in that the cutting edge of the cutting blade (31) has a preset inclination with respect to the sliding direction of the cutting blade (31).

8. The fruit tree auxiliary grafting device according to claim 7, wherein the preset inclination angle is θ and 45 ° < θ <90 °.