CN214644016U - Electric riveting taking machine for riveting tube binding file - Google Patents

Abstract

The utility model discloses an electronic riveter of getting of riveting pipe binding file, which comprises a base, fix the last pedestal at the base, pushing and pressing mechanism and electric lift mechanism, be provided with the cutter installation department in pushing and pressing mechanism's lower part, the cutter installation department is fixed with reference column and riveting cutter, the lower tip of riveting cutter is provided with circular cutting edge, go up reference column and riveting cutter coaxial arrangement, the lower tip of going up the reference column stretches out downwards and the protrusion in the below of riveting cutter from the central part of riveting cutter, it inserts the room to have annular riveting pipe between last reference column and circular cutting edge. The utility model discloses a coaxial arrangement's reference column and die cutter fix a position and cut off riveting tube head, demolish automatically that the riveting tube takes off the rivet with automatic, and the excision is effectual, and is fast, can not harm the file, and simple structure, and is with low costs, and easy operation is convenient.

Description

Electric riveting taking machine for riveting tube binding file

Technical Field

The utility model belongs to the technical field of the riveting pipe that the file was bound to the pipe of tearing open is exclusively used in and removes riveter technical field, especially, relate to an electronic riveter of getting of riveting pipe binding file.

Background

The file binding machine is used for binding files, bills, vouchers and the like, drills out a circular binding hole on the edge of the file through a drill, and then hot-presses and rivets the upper end and the lower end of a riveting pipe inserted into the binding hole into a riveting pipe head through a hot-pressing riveting mechanism so as to realize riveting pipe binding.

The rivet pipe is taken out in a manual mode of cutting off the rivet pipe, so that the operation is very troublesome, the rivet pipe head of the rivet pipe is tightly attached to the file, the rivet pipe is very difficult to cut off, particularly, the force of cutting tools such as a beauty knife worker is difficult to control, and the file is very easy to cut off.

At present, equipment special for removing the riveting pipe is not available, and the applicant finds that the equipment for removing the riveting pipe still has some technical problems to be solved in the development process, for example, complete concentric coaxiality of a drill and the riveting pipe cannot be ensured, particularly for files with large thickness, the head of the upper riveting pipe of the riveting pipe is often inclined relative to the head of the lower riveting pipe, complete vertical alignment and concentric and coaxial state of the head of the upper riveting pipe cannot be ensured, the drill cannot completely cut off the head of the upper riveting pipe of the riveting pipe, and the situation that the drill cuts the files easily occurs, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a rivet pipe is bound file and is electrically got riveter, simple structure, and is with low costs, demolishs the rivet pipe automatically, and easy operation is convenient.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is: the riveting tube binding file electric taking and riveting machine comprises a base for placing a binding file with a riveting tube, an upper base body fixed on the base, a pushing and pressing mechanism and an electric lifting mechanism, wherein the pushing and pressing mechanism and the electric lifting mechanism are slidably mounted on the upper base body;

the lower part of the pushing and pressing mechanism is provided with a cutter mounting part, an upper positioning column and a riveting head cutter are fixed on the cutter mounting part, a circular cutting edge is arranged at the lower end part of the riveting head cutter, the upper positioning column and the riveting head cutter are coaxially mounted, the lower end part of the upper positioning column extends downwards from the central part of the riveting head cutter and protrudes below the riveting head cutter, and an annular riveting pipe insertion chamber is arranged between the upper positioning column and the circular cutting edge.

Furthermore, the cutting edge of the circular cutting edge is obliquely arranged, the inner diameter of the lower part of the circular cutting edge is larger than that of the upper part of the circular cutting edge, the inner diameter of the rivet pipe inserted into the chamber is not smaller than the sum of the diameter of the upper positioning column and the thickness of the rivet pipe, and the outer diameter of the upper positioning column is not larger than that of the rivet pipe.

Further, a guide post is fixedly mounted at the lower part of the pushing and pressing mechanism, a paper pressing plate is slidably mounted on the guide post, an avoidance hole or an avoidance groove in clearance fit with the rivet head cutter is formed in the middle of the paper pressing plate, and the rivet head cutter is vertically aligned with the avoidance hole or the avoidance groove; the lower end part of the circular cutting edge of the riveting head cutter is not lower than the bottom surface of the paper pressing plate in the initial state.

Further, the cutter mounting part comprises a connecting rod fixed at the lower part of the pushing and pressing mechanism, the upper positioning column and the rivet cutter are respectively fixed at the connecting rod, the lower end part of the upper positioning column is protruded below the paper pressing plate in an initial state, the paper pressing plate moves downwards and is abutted against the upper positioning column and the rivet cutter which are arranged behind the bound files on the base and respectively have downward displacement relative to the paper pressing plate, so that the circular cutting edge moves downwards relative to the paper pressing plate and is protruded below the paper pressing plate.

Furthermore, a height adjusting seat is installed at the middle upper part of the upper seat body, the pushing and pressing mechanism comprises a pushing and pressing rod which is installed on the height adjusting seat in a sliding mode along the vertical direction, the pushing and pressing rod is vertically aligned with the upper positioning column, and the cutter installing part is fixed at the lower part of the pushing and pressing rod;

the lower part of the upper positioning column is formed with a guide cone part which is gradually reduced from top to bottom;

the electric lifting mechanism comprises a motor and a transmission gear, the motor and the transmission gear are respectively installed on the height adjusting seat, the motor is in transmission connection with the transmission gear, and the transmission gear is in transmission connection with the pushing and pressing rod so as to drive the pushing and pressing rod to move up and down.

Furthermore, the bottom of connecting rod is fixed with two guide posts about, press the paper board slidable mounting in the lower part of two guide posts, and two guide post overlaps respectively and is equipped with an upper portion elasticity and supports the spring that supports in the bottom of connecting rod, lower extreme elasticity and supports in the paper board, and the paper board is fixed with the lower limit switch that is used for restricting the lower extreme position of circular cutting edge triggers lower limit switch when the lower tip of circular cutting edge surpasss the distance that the bottom surface of paper board set up.

The height adjusting device further comprises a control unit, wherein the height adjusting seat is provided with an upper limit switch, and the pushing rod is in trigger fit with the upper limit switch or the transmission gear is in trigger fit with the upper limit switch when the pushing rod moves upwards to the initial position;

the lower end part of the circular cutting edge exceeds the bottom surface of the paper pressing plate by a distance, and the lower limit switch is in triggering fit with the pushing and pressing mechanism;

the control unit is electrically connected with the upper limit switch and the lower limit switch respectively.

Furthermore, the height adjusting seat is provided with a transmission chamber and a vertically arranged guide through hole, and the transmission gear is rotatably arranged in the transmission chamber;

the upper limit switch is arranged in the transmission chamber;

the pushing rod is slidably arranged in the guide through hole, and one side of the pushing rod, which faces the transmission gear, is provided with transmission teeth;

the transmission chamber is arranged on one side of the guide through hole, the transmission chamber is communicated with the guide through hole, and a transmission gear arranged in the transmission chamber extends into the guide through hole and is in transmission connection with the transmission gear;

one side of the pushing rod is provided with a limiting groove extending along the vertical direction, one side of the height adjusting seat is provided with a transversely arranged limiting column, and the tail end of the limiting column extends into the limiting groove; the bottom surface of the pushing rod is provided with a first jack, the upper part of the connecting rod is inserted and fixed in the first jack, the side surface of the pushing rod is screwed with a first locking screw which is transversely arranged, and the first locking screw abuts against the upper part of the connecting rod;

the bottom surface of the connecting rod is provided with a second jack and a third jack which are concentrically and coaxially arranged, the inner diameter of the second jack is smaller than that of the third jack, and the depth of the second jack is smaller than that of the third jack;

the upper part of the upper positioning column is inserted and fixed in a second jack, the side surface of the connecting rod is in threaded connection with a second locking screw which is transversely arranged, and the second locking screw abuts against the upper part of the upper positioning column;

the upper part of the rivet head cutter is inserted and fixed in a third jack, the side surface of the connecting rod is screwed with a transversely arranged third locking screw, and the third locking screw abuts against the upper part of the rivet head cutter;

the inner diameter of the avoiding hole is larger than the outer diameter of the rivet head cutter and smaller than the outer diameter of the rivet pipe head of the rivet pipe.

Furthermore, the cutter installation part is provided with a clamping part, the clamping part is provided with a locking mechanism, one of the clamping part is fixedly provided with a rivet cutter or a hollow drill used for drilling a round hole in a file in the file binding machine, a circular cutting edge is formed at the outer end part of the hollow drill, the middle part of the hollow drill is provided with a chip removal through hole which penetrates through the hollow drill from top to bottom, and the hollow drill clamped in the clamping part is inserted and sleeved in the outer edge of the positioning column, the circular cutting edge is arranged upwards, and the upper end part of the circular cutting edge of the hollow drill in the height direction is lower than the upper end part of the positioning column.

Further, the riveting head device comprises a lower positioning column which is convexly fixed on the upper part of the top surface of the base and is provided with a guide cone part which gradually becomes larger from bottom to top and is vertically aligned with the riveting head cutter, and/or a laser emitter which is arranged above the base and irradiates a laser positioning cursor towards the base.

After the structure is adopted, compared with the prior art, the utility model the advantage that has is: the utility model discloses a coaxial arrangement's reference column and die cutter fix a position and cut off riveting tube head, demolish automatically that the riveting tube takes off the rivet with automatic, and the excision is effectual, and is fast, can not harm the file, and simple structure, and is with low costs, and easy operation is convenient.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the present invention.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

The labels in the figure are:

1 the height adjusting seat 12 of the base 11 pushes the upper seat 14 of the push rod 13 to guide the limiting post of the through hole 15 and the transmission chamber 16 and the limiting groove 17.

2 lower positioning columns.

31 connecting the post 33 on the rod 32 and the bit cutter 34 to insert the tube into the chamber.

The guide post 41 42 presses the paper plate 43 against the hole 44 spring.

The motor 51 52 drives the gear 53 lower limit switch 54 upper limit switch hand pressure handle.

Detailed Description

An electric riveting machine for riveting tubes to bind documents is shown in figures 1 to 3 and comprises a base 1 for placing the bound documents with the riveting tubes, an upper base body 13 fixed on the base 1, a pushing and pressing mechanism and an electric lifting mechanism, wherein the pushing and pressing mechanism is slidably arranged on the upper base body 13; a cutter mounting part is arranged at the lower part of the pushing mechanism, an upper positioning column 32 and a rivet head cutter 33 are fixed on the cutter mounting part, a circular cutting edge is arranged at the lower end part of the rivet head cutter 33, the upper positioning column 32 and the rivet head cutter 33 are coaxially mounted, the lower end part of the upper positioning column 32 extends downwards from the central part of the rivet head cutter 33 and protrudes below the rivet head cutter 33, and an annular rivet pipe inserting chamber 34 is arranged between the upper positioning column 32 and the circular cutting edge.

The lower end part of the rivet head cutter 33 is provided with a clearance hole and a wall body surrounding the outer edge of the clearance hole, the upper positioning column 32 extends downwards from the middle part of the clearance hole, a rivet pipe inserting chamber 34 for avoiding the pipe wall of the rivet pipe is arranged between the upper positioning column 32 and the wall body, a circular cutting edge with a downward circular edge is formed at the lower edge of the wall body, the cutting edge provided with the circular cutting edge is obliquely arranged, the inner diameter of the lower part of the circular cutting edge is larger than the inner diameter of the upper part of the circular cutting edge, preferably, the inner diameter of the rivet pipe inserting chamber 34 is larger than the sum of the diameter of the upper positioning column 32 and the thickness of the rivet pipe, so that the pipe wall of the rivet pipe can be easily inserted into the rivet pipe inserting chamber 34, and when the pipe wall of the rivet pipe is larger, the obliquely arranged cutting edge can enable the pipe wall of the rivet pipe to be smoothly inserted into the rivet pipe inserting chamber 34 under the pressure effect.

When the pipe wall of the riveting pipe is relatively large, namely the inner diameter of the riveting pipe insertion chamber 34 is equal to or slightly smaller than the sum of the diameter of the upper positioning column 32 and the thickness of the riveting pipe, the circular cutting edge with the inclined cutting edge can guide and extrude the upper end part of the cut pipe wall of the riveting pipe and force the circular cutting edge to be inserted into the riveting pipe insertion chamber 34, the pipe wall of the end part of the riveting pipe can be also extruded into the riveting pipe insertion chamber 34 under the action of pressure, and the problem that the head part of the riveting pipe cannot be cut off due to insufficient downward displacement of the circular cutting edge caused by the fact that the circular cutting edge is blocked by the head part of the riveting pipe is solved.

The outer diameter of the upper positioning column 32 is not larger than the inner diameter of the riveting pipe, and the riveting pipe sleeve is smoother and more convenient when being inserted into the upper positioning column 32. In the process of cutting off the head of the rivet pipe, particularly in the process of cutting off the head of the rivet pipe with larger thickness, the outer end part of the pipe wall of the rivet pipe is forced to be inserted into the rivet pipe inserting chamber 34 through the inclined cutting edge and the guiding action of the upper positioning column 32, the depth of the rivet pipe inserting chamber 34 is larger than 0.5mm, the rivet head cutter 33 is ensured to have enough upward displacement, the head of the rivet pipe is ensured to be cut off, and the rivet pipe is prevented from being hard-topped by the rivet head cutter 33.

In the rivet taking process, the upper positioning column 32 is inserted from the head of the upper riveting pipe of the riveting pipe, the upper positioning column 32 is always concentric and coaxial with the head of the upper riveting pipe of the riveting pipe, in the rivet taking process, only the riveting pipe is roughly aligned with the riveting cutter 33, the upper positioning column 32 can be vertically aligned with the riveting pipe by inserting the lower riveting pipe head of the riveting pipe into the lower positioning column 2 fixed on the base 1, the relative position relation between the riveting cutter 33 and the riveting pipe is changed to be concentric and coaxial under the guiding action of the upper positioning column 32, and the upper positioning column 32 is used for guiding and correcting, so that the riveting cutter 33 can smoothly cut off the head of the upper riveting pipe of the riveting pipe.

The lower part of the pushing and pressing mechanism is fixedly provided with a guide post 41, the guide post 41 is provided with a paper pressing plate 42 in a sliding manner, the middle part of the paper pressing plate 42 is provided with an avoidance hole 43, the avoidance hole 43 is in clearance fit with the rivet head cutter 33, and the rivet head cutter 33 is vertically aligned with the avoidance hole 43; in the initial state, the lower end of the circular cutting edge of the rivet cutter 33 is not lower than the bottom surface of the paper pressing plate 42, and the inner diameter of the escape hole 43 is larger than the outer diameter of the rivet cutter 33 and smaller than the outer diameter of the rivet pipe head of the rivet pipe. After the push rod 12 and the rivet cutter 33 move upwards and return, the paper pressing plate 42 moves downwards relative to the rivet cutter 33 under the action of the spring 44, the head of the cut rivet pipe is ejected downwards, the head of the rivet pipe is prevented from being tightly sleeved or adhered to the rivet cutter 33, and automatic rivet taking and full-automatic rivet releasing are realized.

Of course, the middle part of the paper pressing plate 42 may also be provided with a clearance groove in clearance fit with the rivet cutter 33, and the width of the clearance groove is larger than the outer diameter of the rivet cutter 33 and smaller than the outer diameter of the rivet pipe head of the rivet pipe, so as to realize automatic rivet releasing while the rivet cutter 33 passes through.

Specifically, the cutter mounting portion includes a connecting rod 31 fixed to a lower portion of the pushing mechanism, the upper positioning column 32 and the rivet cutter 33 are respectively fixed to the connecting rod 31, a lower end portion of the upper positioning column 32 protrudes below the paper pressing plate 42 in an initial state, and the upper positioning column 32 and the rivet cutter 33 respectively have downward displacements relative to the paper pressing plate 42 after the paper pressing plate 42 moves downward and abuts against the bound document mounted on the base 1, so that the circular cutting edge moves downward relative to the paper pressing plate 42 and protrudes below the paper pressing plate 42.

Preferably, a motor 51 installed on the height adjusting base 11 is used instead of the hand pressure handle, and the motor 51 is in transmission connection with a transmission gear 52 to realize the up-and-down movement of the pushing rod 12 driven by the motor 51. The middle upper part of the upper seat body 13 is provided with a height adjusting seat 11, the pushing and pressing mechanism comprises a pushing and pressing rod 12 which is arranged on the height adjusting seat 11 in a sliding mode along the vertical direction, the pushing and pressing rod 12 is vertically aligned with the upper positioning column 32, and the lower part of the pushing and pressing rod 12 is fixedly provided with a cutter mounting part; a guide cone part which is gradually reduced from top to bottom is formed at the lower part of the upper positioning column 32, so that the upper positioning column 32 can be conveniently inserted into a pipe cavity of the riveting pipe; the electric lifting mechanism comprises a control unit, a motor 51 and a transmission gear 52, wherein the motor 51 and the transmission gear 52 are installed on the height adjusting seat 11, the motor 51 is in transmission connection with the transmission gear 52, the transmission gear 52 is in transmission connection with the pushing rod 12, the control unit is electrically connected with the motor 51, and the control unit respectively receives switching signals of an upper limit switch 54 and a lower limit switch 53 and controls the motor 51 to work correspondingly.

Alternatively, a manual driving mechanism is used instead of the electric lifting mechanism, the manual driving mechanism comprises a transmission gear 52 installed on the height adjusting seat 11 and a hand pressure handle in transmission connection with the transmission gear 52, and the transmission gear 52 is in transmission connection with the pushing rod 12 to drive the pushing rod 12 to move up and down.

The bottom of the connecting rod 31 is fixed with a left guide post 41 and a right guide post 41, the paper pressing plate 42 is slidably mounted at the lower parts of the two guide posts 41, the two guide posts 41 are respectively sleeved with a spring 44 with the upper part elastically abutting against the bottom of the connecting rod 31 and the lower end elastically abutting against the paper pressing plate 42, the paper pressing plate 42 can move up and down along the guide posts 41, a downward acting force is provided for the paper pressing plate 42 through the spring 44, the paper pressing plate 42 is fixed with a lower limit switch 53 for limiting the lower limit position of the circular cutting edge, the lower limit switch 53 is triggered when the lower end part of the circular cutting edge exceeds the distance set at the bottom surface of the paper pressing plate 42, and the distance is approximately equal to the thickness of the head part of the riveting tube.

The height adjusting seat 11 is provided with an upper limit switch 54, and when the push rod 12 moves upwards to the initial position, the push rod 12 is in triggering fit with the upper limit switch 54 or the transmission gear 52 is in triggering fit with the upper limit switch 54; the lower limit switch 53 is matched with the pushing mechanism in a triggering way at the lower end part of the circular cutting edge exceeding the distance arranged on the bottom surface of the paper pressing plate 42; the control unit is electrically connected with an upper limit switch 54 and a lower limit switch 53 respectively, when the control unit receives a switch signal of the upper limit switch 54, the control motor 51 is stopped to stop the push rod 12 and the riveting head cutter 33 at the initial positions, and when the control unit receives a switch signal of the lower limit switch 53, the control motor 51 is reversely rotated to move the push rod 12 and the riveting head cutter 33 upwards for resetting.

The height adjusting seat 11 is provided with a transmission chamber 15 and a vertically arranged guide through hole 14, and a transmission gear 52 is rotatably arranged in the transmission chamber 15; the upper limit switch 54 is installed in the transmission chamber 15; the push rod 12 is slidably arranged in the guide through hole 14, and one side of the push rod 12 facing the transmission gear 52 is provided with transmission teeth; the transmission chamber 15 is arranged at one side of the guide through hole 14, the transmission chamber 15 is communicated with the guide through hole 14, and a transmission gear 52 arranged in the transmission chamber 15 extends into the guide through hole 14 and is in transmission connection with a transmission gear; a limit groove 16 extending along the vertical direction is formed in one side of the pushing rod 12, a transversely arranged limit column 17 is installed on one side of the height adjusting seat 11, and the tail end of the limit column 17 extends into the limit groove 16; a first jack is formed in the bottom surface of the pushing rod 12, the upper portion of the connecting rod 31 is fixedly inserted into the first jack, a first locking screw transversely arranged is screwed on the side surface of the pushing rod 12, the first locking screw abuts against the upper portion of the connecting rod 31, and the connecting rod 31 can be detached and replaced; the bottom surface of the connecting rod 31 is provided with a second jack and a third jack which are concentrically and coaxially arranged, the inner diameter of the second jack is smaller than that of the third jack, and the depth of the second jack is smaller than that of the third jack; the upper part of the upper positioning column 32 is inserted and fixed in a second jack, the side surface of the connecting rod 31 is screwed with a second locking screw which is transversely arranged, the second locking screw abuts against the upper part of the upper positioning column 32, and the upper positioning column 32 can be detached and replaced; the upper part of the rivet head cutter 33 is fixedly inserted into a third jack, a third locking screw which is transversely arranged is screwed on the side surface of the connecting rod 31, the third locking screw abuts against the upper part of the rivet head cutter 33, the rivet head cutter 33 can be detached and replaced, and meanwhile the upper positioning column 32 and the rivet head cutter 33 are kept concentric and coaxial.

The base 1 is fixedly provided with a lower positioning column 2 protruding out of the top surface of the base 1, and the upper part of the lower positioning column 2 is formed with a guide cone part gradually enlarged from top to bottom, so that the lower positioning column 2 can be conveniently inserted into a tube cavity of a riveting tube; the lower positioning column 2 is vertically aligned with the rivet head cutter 33. The lower positioning column 2 is inserted into a pipe cavity of the riveting pipe, the lower rivet head of the riveting pipe to be detached is concentric and coaxial with the rivet head cutter 33, the upper rivet head of the riveting pipe to be detached is vertically aligned with the rivet head cutter 33, and quick preliminary alignment of the riveting pipe and the rivet head cutter 33 is achieved. The electric riveting machine for taking out the riveted pipe bound file can also be arranged on a laser transmitter which is arranged above the base 1 and irradiates a laser positioning cursor towards the base 1, and the quick preliminary alignment of the riveted pipe and the riveting head cutter 33 is realized through the indication of the laser positioning cursor.

Preferably, the cutter mounting portion is provided with a clamping portion, the clamping portion is provided with a locking mechanism, the clamping portion is fixedly provided with a rivet cutter 33, and the rivet cutter 33 can be replaced after the locking mechanism is loosened.

Preferably, a hollow drill bit is fixedly installed at the clamping part, the hollow drill bit is used in an archive binding machine and used for drilling out a round hole in a file, a circular cutting edge is formed at the outer end part of the hollow drill bit, a chip removing through hole is formed in the middle of the hollow drill bit and penetrates through the hollow drill bit up and down, a hollow drill bit insert sleeve clamped at the clamping part is sleeved on the outer edge of the positioning column, the circular cutting edge is arranged upwards, the upper end part of the circular cutting edge of the hollow drill bit in the height direction is lower than the upper end part of the positioning column, and the hollow drill bit used in the riveting tube archive binding machine is used as the riveting head cutter 33.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims (10)

1. Rivet pipe binding file is electronic gets riveter, its characterized in that: the automatic file binding machine comprises a base (1) for placing a bound file with a riveting pipe, an upper base body (13) fixed on the base (1), a pushing and pressing mechanism and an electric lifting mechanism, wherein the pushing and pressing mechanism is slidably mounted on the upper base body (13), and the electric lifting mechanism is in transmission connection with the pushing and pressing mechanism;

a cutter mounting part is arranged at the lower part of the pushing and pressing mechanism, an upper positioning column (32) and a riveting head cutter (33) are fixed on the cutter mounting part, a circular cutting edge is arranged at the lower end part of the riveting head cutter (33), the upper positioning column (32) and the riveting head cutter (33) are coaxially mounted, the lower end part of the upper positioning column (32) extends downwards from the central part of the riveting head cutter (33) and protrudes below the riveting head cutter (33), and an annular riveting pipe inserting chamber (34) is arranged between the upper positioning column (32) and the circular cutting edge.

2. The electric riveting machine of claim 1, wherein: the cutting edge of the circular cutting edge is obliquely arranged, the inner diameter of the lower portion of the circular cutting edge is larger than that of the upper portion of the circular cutting edge, the inner diameter of the rivet pipe inserting chamber (34) is not smaller than the sum of the diameter of the upper positioning column (32) and the thickness of the rivet pipe, and the outer diameter of the upper positioning column (32) is not larger than that of the rivet pipe.

3. The electric riveting machine of claim 1, wherein: the lower part of the pushing and pressing mechanism is fixedly provided with a guide post (41), the guide post (41) is provided with a paper pressing plate (42) in a sliding manner, the middle part of the paper pressing plate (42) is provided with an avoidance hole (43) or an avoidance groove in clearance fit with the rivet head cutter (33), and the rivet head cutter (33) is vertically aligned with the avoidance hole (43) or the avoidance groove; the lower end part of the circular cutting edge of the riveting head cutter (33) is not lower than the bottom surface of the paper pressing plate (42) in the initial state.

4. The electric riveting machine of claim 3, wherein: the cutter mounting part comprises a connecting rod (31) fixed at the lower part of the pushing and pressing mechanism, the upper positioning column (32) and the riveting head cutter (33) are respectively fixed at the connecting rod (31), the lower end part of the upper positioning column (32) is protruded below the paper pressing plate (42) in an initial state, the paper pressing plate (42) moves downwards and is abutted against the upper positioning column (32) and the riveting head cutter (33) which are arranged behind the bound document arranged on the base (1) and have downward displacement relative to the paper pressing plate (42), so that the circular cutting edge moves downwards relative to the paper pressing plate (42) and is protruded below the paper pressing plate (42).

5. The electric riveting machine of claim 4, wherein: the middle upper part of the upper seat body (13) is provided with a height adjusting seat (11), the pushing and pressing mechanism comprises a pushing and pressing rod (12) which is arranged on the height adjusting seat (11) in a sliding mode along the vertical direction, the pushing and pressing rod (12) is vertically aligned with the upper positioning column (32), and the lower part of the pushing and pressing rod (12) is fixedly provided with the cutter mounting part;

the lower part of the upper positioning column (32) is formed with a guide cone part which is gradually reduced from top to bottom;

the electric lifting mechanism comprises a motor (51) and a transmission gear (52), the motor (51) and the transmission gear (52) are respectively installed on the height adjusting seat (11), the motor (51) is in transmission connection with the transmission gear (52), and the transmission gear (52) is in transmission connection with the pushing rod (12) so as to drive the pushing rod (12) to move up and down.

6. The electric riveting machine of claim 5, wherein: the bottom of connecting rod (31) is fixed with controls two guide post (41), press platen (42) slidable mounting in the lower part of two guide post (41), two guide post (41) overlap respectively and are equipped with an upper portion elasticity and support the spring (44) that support the bottom in connecting rod (31), lower extreme elasticity support in press platen (42), press platen (42) to be fixed with and be used for the restriction lower limit switch (53) of the lower extreme position of circular cutting edge trigger lower limit switch (53) when the distance that the lower tip of circular cutting edge exceeded the bottom surface setting of press platen (42).

7. The electric riveting machine of claim 6, wherein: the height adjusting device comprises a control unit, wherein an upper limit switch (54) is installed on the height adjusting seat (11), and when the pushing rod (12) moves upwards to an initial position, the pushing rod (12) is in trigger fit with the upper limit switch (54) or the transmission gear (52) is in trigger fit with the upper limit switch (54);

the lower end part of the circular cutting edge exceeds the bottom surface of the paper pressing plate (42) and is in triggering fit with the pushing mechanism by a distance of the lower limit switch (53);

the control unit is electrically connected with the upper limit switch (54) and the lower limit switch (53) respectively.

8. The electric riveting machine of claim 7, wherein: the height adjusting seat (11) is provided with a transmission chamber (15) and a guide through hole (14) which is vertically arranged, and the transmission gear (52) is rotatably arranged in the transmission chamber (15);

the upper limit switch (54) is arranged in the transmission chamber (15);

the pushing rod (12) is slidably mounted in the guide through hole (14), and one side, facing the transmission gear (52), of the pushing rod (12) is provided with transmission teeth;

the transmission chamber (15) is arranged on one side of the guide through hole (14), the transmission chamber (15) is communicated with the guide through hole (14), and a transmission gear (52) arranged in the transmission chamber (15) extends into the guide through hole (14) and is in transmission connection with a transmission gear;

a limiting groove (16) extending in the vertical direction is formed in one side of the pushing rod (12), a transversely arranged limiting column (17) is installed on one side of the height adjusting seat (11), and the tail end of the limiting column (17) extends into the limiting groove (16);

a first jack is formed in the bottom surface of the pushing rod (12), the upper portion of the connecting rod (31) is fixedly inserted into the first jack, a first locking screw which is transversely arranged is screwed on the side surface of the pushing rod (12), and the first locking screw abuts against the upper portion of the connecting rod (31);

the bottom surface of the connecting rod (31) is provided with a second jack and a third jack which are concentrically and coaxially arranged, the inner diameter of the second jack is smaller than that of the third jack, and the depth of the second jack is smaller than that of the third jack;

the upper part of the upper positioning column (32) is inserted and fixed in a second insertion hole, the side surface of the connecting rod (31) is in threaded connection with a second locking screw which is transversely arranged, and the second locking screw abuts against the upper part of the upper positioning column (32);

the upper part of the rivet head cutter (33) is fixedly inserted into a third jack, a third locking screw which is transversely arranged is screwed on the side surface of the connecting rod (31), and the third locking screw abuts against the upper part of the rivet head cutter (33);

the inner diameter of the avoiding hole (43) is larger than the outer diameter of the rivet head cutter (33) and smaller than the outer diameter of the rivet pipe head of the rivet pipe.

9. The electric riveting machine of claim 1, wherein: the cutter installation department is provided with clamping portion, and locking mechanism is installed to clamping portion, and clamping portion fixed mounting has one rivet cutter (33) or a cavity brill sword that is used for drilling out the round hole at the file, the outer tip shaping of cavity brill sword has circular cutting edge, and the middle part of cavity brill sword is seted up and is run through the interior chip removal through-hole of brill sword of cavity brill sword from top to bottom, and the cavity brill sword plug bush of clamping portion in the outer fringe of reference column, circular cutting edge set up, and be less than the upper end of reference column in the upper end of the circular cutting edge of direction of height cavity brill sword.

10. The electric riveter of any one of claims 1 to 9, wherein: the lower positioning column (2) which is convexly fixed on the upper part of the top surface of the base (1) and is vertically aligned with the guiding cone part of the riveting head cutter (33) and gradually enlarged from top to bottom and/or the laser emitter which is arranged above the base (1) and irradiates a laser positioning cursor towards the base (1) are/is included.

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