CN110487466B - A stapler nailing force detection device and detection method thereof - Google Patents

Abstract

A stapler nailing force detection device comprises a fixing mechanism (2), a clamping mechanism (3), a load sensor (5), a front and back displacement device and a control system unit, wherein the fixing mechanism (2) is used for fixing a detected stapler on an operation platform (102); the clamping mechanism (3) is used for clamping the detected upper cover of the stapler; the load sensor (5) is used for collecting detection data of the detected stapler; the front and back displacement device enables the buffer device to freely move in a limited direction so as to ensure that the force applied to the load sensor (5) is kept as a vertical force; the control system unit is connected with the power output device (8), the control system unit comprises a computer (6) and a safety module (7), the computer (6) is used for processing collected detection data, and the safety module is used for processing emergency situations in the test process.

Description

A stapler nailing force detection device and detection method thereof

technical field

The invention relates to the field of stapler detection, in particular to a stapler nailing force detection device and a detection method.

Background technique

The stapler is both a student supply and an office supply. It is widely used, and it provides an ideal means of stapling together many sheets of paper for storage, so its coverage may include every classroom or office. The stapler's nailing force is an important indicator of its use, and it is also a topic of concern in the industry, especially the labor-saving staplers that are very popular on the market now. At present, the nailing force value of various types of staplers has been prepared to be written into the group standard, especially the labor-saving value of labor-saving staplers is required. However, the stapler force test has always faced many problems, because in the actual operation of manual stapler, the pressing point of the stapler is a fan-shaped curve that is continuously moving, and the traditional vertical force measurement structure does not simulate manual labor, so it is impossible to Make sure that it is vertical to the upper cover of the stapler and the torque remains unchanged during the pressing action.

Chinese patent CN207379656U discloses a device for detecting the maximum load of the stapler during the binding process. The detection principle is mainly that the upper end of the load rod is equipped with a sensor, and then the upper cover of the stapler is pressed down by the load rod to detect the maximum load during the binding process. However, this is an ambiguous force measurement method, because as the upper cover of the stapler is pressed down, its indenter, the contact angle of the upper cover, and the moment will continue to change, and as the angle of the upper cover of the stapler changes, The sensor is also constantly subjected to cross-cutting forces, which will seriously affect the accuracy and durability of the sensor, especially for labor-saving staplers and heavy-duty staplers with large angles and arms. It can only be said that this force measurement method is helpful for the force value setting of its mechanical vertical punching, but it cannot scientifically and reasonably simulate the artificial real nailing force value curve.

After a large number of tests and verifications, the present invention finds that the stapler is mainly subjected to three peak forces when nailing, namely, the force of removing the staples, the force of feeding the paper, and the force of bending the staples. When simulating manual nailing, with the progress of these three processes, the upper cover of the stapler will be continuously pressed down and the angle relative to the base will change continuously, and the pressing point needs to be always at the edge of the upper cover and cannot be displaced. Therefore, in order to accurately simulate and manually test the nailing force of each stage of the stapler, a stapler testing machine that is always perpendicular to the pressure rod and has no relative displacement is required.

Therefore, in order to ensure that the pressure rod and the upper cover of the stapler are always vertical and simulate the real force value curve of staplers, it is necessary to develop a new type of stapler force detection device to meet the force value of various types of staplers. test requirements.

SUMMARY OF THE INVENTION

The invention provides a stapler nailing force detection device and a detection method thereof. The detection device can not only test the nailing force value of an ordinary stapler, but also meet the needs of labor-saving staples with long strokes and large angles on the market. It has the advantages of simulating labor, accurate testing and overload protection, and can scientifically and quantitatively characterize the smoothness and feel of the pressing process of the stapler, and the generated force value- The displacement curve is used for the detection and research analysis of the stapler's nailing force.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions:

A stapler nailing force detection device is characterized in that it includes a whole machine frame, a fixing mechanism, a clamping mechanism, a load sensor, a buffer device, a front and rear displacement device, an up and down moving beam, a power output device and a control system unit. The whole machine frame is configured to carry the weight of the entire detection device; the fixing mechanism is configured to fix the detected stapler on the operating platform; the clamping mechanism is configured to clamp the detected stapler The upper cover of the stapler; the load sensor is arranged to collect the detection data of the detected stapler; the buffer device is arranged to protect the detection device and avoid the occurrence of overload during the detection process; the front and rear displacement device is arranged To allow the buffer device to move freely in a defined direction to ensure that the force received by the load sensor is maintained as a vertical force; the up-and-down moving beam is set to be able to move up and down; the power output device drives the up-and-down moving beam to have The control system unit is connected with the power output device, and the control system unit includes a computer and a safety module, the computer is used for processing the collected detection data, and the safety module is used for processing emergencies during the test.

Further, the whole machine frame includes a box body frame, an operation platform, a support seat and an upper cover.

Further, the bottom frame of the whole machine frame is an open box structure, that is, the box body frame, the material of the bottom four corners of the box body frame is hard rubber or hard resin, and the upper frame of the whole machine frame is It is an open cavity structure.

Further, the fixing mechanism includes a left and right fixing device of the stapler, an upper and lower lever fixing device, a lever pressing knob, a fixing module, a pushing device, a lower pressing rod and a push rod.

Further, a guide groove is provided on the operating platform, and the left and right fixing devices of the stapler and the upper and lower lever fixing devices are assembled in the guide groove through the positioning blocks at the lower ends thereof.

Further, the clamping mechanism includes a stapler upper cover clamping device, a baffle plate, left and right pressing knobs, up and down pressing knobs, latches, fixing nuts, connecting threads, left and right pressing blocks and up and down pressing blocks.

Further, the load sensor is connected to the holding device of the upper cover of the stapler in the clamping mechanism, and the sensing direction of the load sensor is perpendicular to the detected upper cover of the stapler.

Further, the buffer device is a protection cylinder, the protection cylinder is connected with the load sensor through a hinge device, the protection cylinder is always filled with gas, and the piston rod of the protection cylinder is always in an extended state.

Further, the front and rear displacement device is a linear guide rail, the protection cylinder is connected with the linear guide rail, and the connecting thread is connected with the piston rod of the protection cylinder.

Further, the power output device is a transmission mode in which a servo motor and a ball screw are matched. The power output device additionally includes a conveyor belt, a guide sleeve, a guide column and a limit device. The upper end of the up-and-down moving beam is connected with the ball screw and the guide column.

Further, the safety module includes a foot emergency stop device, the safety module includes "emergency stop", "start", "stop", "up", "down" operation functions, the computer and the safety module , the load sensor is connected with the servo motor.

A detection method for detecting the nailing force of a stapler by using the described stapler nailing force detection device, characterized in that it comprises the following steps:

a) Select the detected pressing point of the upper cover of the stapler, and fix the position of the upper cover in the clamping mechanism;

b) setting the control system to move the up-and-down beam to an appropriate position, and placing the base of the detected stapler horizontally into the fixing mechanism for fixing;

c) setting the control system, according to the detected natural height of the stapler, select a suitable height of the upper and lower moving beams to be set as the starting point of the detected stapler;

d) adjusting the buffer device according to the detected stapler type;

e) operate the computer, set to the force value drive mode, set the travel speed and the load force value, when the load sensor is subjected to the load force value, the up and down moving beam immediately stops the pressing action and starts the return action;

f) Start the control system, drive the up and down moving beam (4) to move downward, so that the detected stapler completes three actions of removing staples, feeding paper, and bending staples. When the actual load force value reaches the set load When the force value is reached, the up and down moving beam automatically ends and resets;

g) If the set force value fails to make the detected stapler complete the complete stapling action, select one of the following two adjustment schemes to perform the stapling force detection again:

g1) Increase the load force value;

g2) operate the computer, set to the stroke drive mode, read out the lowest point of the moving beam last time, and increase the stroke of 0-1mm according to the actual nailing effect as the end point of the moving beam up and down;

h) Collecting data with the load sensor (5) and processing with the computer (6) to obtain a detection result.

Further, the buffer device is a protection cylinder, and in step d), when the detected stapler is a general stapler or a labor-saving stapler, the protective air pressure is set to 300Kpa, and when the detected stapler is a heavy-duty stapler When the machine is set, the protective air pressure is 500Kpa.

By designing a stapler nailing force detection device and its detection method, the present invention can accurately reflect the stapler's nail removal force, paper feeding force, nail bending force and its stability during use by designing a fine structure. , to obtain the force value curve of the stapler when nailing, so as to more scientifically and reasonably characterize the stapler's nailing force and use feel.

Description of drawings

The above technical content of the present invention and the following specific embodiments will be better understood when read in conjunction with the accompanying drawings. It should be noted that the accompanying drawings are only examples of the claimed technical solution. In the drawings, the same reference numbers represent the same or similar elements.

1 is a three-dimensional structural view of a stapler nailing force detection device according to an embodiment of the present invention;

2 is a side view of the stapler nailing force detection device of the embodiment of the present invention;

FIG. 3 is a schematic structural diagram of the tooling structure of the operating platform according to the embodiment of the present invention;

4 is a schematic structural diagram of the upper cover clamping device of the stapler according to the embodiment of the present invention;

5 is a schematic structural diagram of the upper and lower lever fixing devices in the fixing device according to the embodiment of the present invention;

6 is a schematic structural diagram of the left and right elastic pieces pressing tooling in the fixing device according to the embodiment of the present invention;

7 is a schematic structural diagram of a power output device according to this embodiment of the present invention;

FIG. 8 is a schematic diagram of the initial state of pressing down of the stapler nailing force detection device according to the embodiment of the present invention;

FIG. 9 is a schematic diagram of the end state of pressing down of the stapler nailing force detection device according to the embodiment of the present invention;

10 is a comparison diagram of the nailing force value curve of a 12# ordinary stapler and a 12# labor-saving stapler during the detection process of the stapler nailing force detection device in the test example of the present invention.

Among them, the reference numerals are described as follows:

1 whole machine frame

101 Box frame

102 Operating Platform

103 Support base

104 cover

2 fixing mechanism

201 Stapler Left and Right Fixtures

202 Upper and lower lever fixing device

203 Guide groove

204 Positioning block

205 Lever Compression Knob

206 Fixed pressure block

207 Pusher

208 down lever

209 putter

3 Clamping mechanism

301 Stapler cover holding device

302 bezel

303 Left and right compression knobs

304 Press the knob up and down

305 latch

306 Fixing Nut

307 Connection thread

308 left and right compression blocks

309 Up and down compression block

4 Move the beam up and down

401 Linear guide

5 Load cell

501 Protection cylinder

502 Regulator

503 Hinged device

6 Computer

7 Security module

701 Foot emergency stop device

8 PTO

801 Servo Motor

802 Conveyor Belt

803 Ball Screw

804 Guide bushing

805 Guide post

806 Limiting device

Detailed ways

The detailed features and advantages of the present invention are described below in the specific embodiment, and the content is sufficient to enable those skilled in the art to understand the technical content of the present invention and implement it accordingly, and according to the description, claims and drawings, those skilled in the art can Objects and advantages associated with the present invention are readily understood.

As shown in FIG. 1 , the stapler nailing force detection device includes: a complete machine frame 1 (box frame 101 , operating platform 102 , support base 103 , and upper cover 104 ) and a control system unit.

The box frame 101 is a single-sided hollow structure, which is convenient for manual operation of placing paper and nails. The four legs of the box frame 101 are hard rubber or hard resin structures, which are used to reduce the vibration caused by the tooling of the testing machine. and noise, a foot emergency stop device 701 is installed at the bottom of the frame, which is used for foot emergency stop when the testing machine is abnormal.

As shown in FIG. 3 , the operating platform 102 is provided with a guide groove 203 , and the guide groove 203 is in the shape of a “convex”. The left and right fixing devices 201 and the upper and lower lever fixing devices 202 of the stapler are assembled through the positioning block 204 at the lower end. In the guide groove 203 , the left and right fixing devices 201 of the stapler and the upper and lower lever fixing mechanisms 202 can be freely moved and fixed in the guide groove 203 along the fixing direction.

The lower end of the vertical moving beam 4 is connected to the linear guide rail 401 and the baffle 302. A buffer device in the form of a protection cylinder 501 is suspended on the linear guide rail 401. The protection cylinder 501 can slide freely on the linear guide rail 401, and the stopper The plate 302 restrains the protection cylinder 501 from sliding out of the linear guide 401 . The protection cylinder 501 is always filled with gas, the gas pressure is adjusted and controlled by the pressure regulating valve 502 , the piston of the protection cylinder 501 is always in an extended state, and the expansion and contraction force of the piston is adjusted by the pressure regulating valve 502 , the function is to protect the load sensor 5 from being overloaded.

The piston is connected with the load sensor 5 through the lower end hinge device 503 to ensure that the load sensor 5 always receives a vertical force, and the lower end of the load sensor is connected with the upper cover clamping device 301 of the stapler.

As shown in FIG. 4 , the upper cover clamping device 301 of the stapler includes: left and right pressing knobs 303, up and down pressing knobs 304, latches 305, fixing nuts 306, connecting threads 307, left and right pressing blocks 308, up and down pressing Block 309.

The connecting thread 307 is connected with the piston of the protection cylinder 501 , and the connecting thread 307 is connected with the clamping mechanism 3 through the plug 305 . The latch 305 can facilitate the disassembly of the clamping mechanism 3 and facilitate the operation of patching and changing staples of the detected stapler. The fixing nut 306 is used to eliminate the gap and wobble in the connection of the plug 305 . The clamping mechanism 3 connected to the lower end of the latch 305 adjusts the left and right pressing blocks 308 through the left and right pressing knobs 303 to press and fix the upper cover of the detected stapler. The upper cover of the detected stapler is pressed up and down to fix it.

As shown in FIG. 5 , the upper and lower lever fixing device 202 can rotate the lever pressing knob 205 to press down the fixing pressing block 206 to fix the detected stapler.

As shown in FIG. 6 , the left and right fixing device 201 of the stapler can move the push rod 209 forward by pressing down the pressing rod 208 , thereby fixing the detected stapler.

As shown in FIG. 7 , a power output device 8 is fixed on the support base 103 , including: a servo motor 801 , a conveyor belt 802 , a ball screw 803 , a guide sleeve 804 , a guide column 805 , and a limiting device 806 .

The servo motor 801 is fixed on the support base 103 to drive the conveyor belt 802 to rotate, and the conveyor belt 802 rotates to drive the ball screw 803 to rotate. The lower end of the ball screw 803 is connected to the vertical moving beam 4 . The up-and-down moving beam 4 is positioned by the guide sleeve 804 and the guide column 805 , is connected with the ball screw 803 , and is driven by the ball screw 803 to move up and down. The limiting device 806 is installed on the upper end of the guide column 805 , and a limiting button is arranged at the lower end of the limiting device to limit the displacement stroke of the guide column 805 .

The control system unit includes a computer 6 and a safety module 7 (pedal emergency stop device 701 ). The safety module 7 is connected to the computer 6, and the safety module 7 is provided with function buttons: emergency stop, opening, closing, ascending, descending, etc., which are convenient for human operation.

The computer 6 is the control center of the stapler nailing force detection device, and the computer 6 is connected with the security module 7 , the load sensor 5 , and the servo motor 801 .

The load sensor is connected to the computer 6, so that it receives the load sensor signal, displays the force value of the whole experimental process in real time, and forms a (load-time) or (load-formation) curve.

The servo motor 801 is connected to the computer 6, and the servo motor 801 sets parameters such as the speed of each stage, pause time, etc. of the servo motor 801 through the software on the computer 6, so as to control the up and down movement. The effect of beam 4.

The stapler nailing force detection device of the present invention has the effect of simulating manual stapling and keeping the contact point vertical and fixed with the detected upper cover of the stapler during the pressing process. Next, the unit stroke operation will be described. As shown in FIG. 8 , it is the start state of the detection device pressing down; as shown in FIG. 9 , it is the end state of the detection device pressing down. in:

The bottom of the detected stapler is fixed in the left and right fixing devices 201 of the stapler and the upper and lower lever fixing devices 202, and the upper cover of the detected stapler is fixed on the upper cover clamping device 301 of the stapler. By operating The computer 6 sets the formed start and end positions. After starting, the up and down moving beam 4 goes down, driving the protection cylinder 501 and the load sensor 5 to move down, the protection cylinder 501 is always filled with gas, and the piston rod is always in an extended state to protect the load sensor 5 will not be overloaded, the upper part of the protection cylinder 501 is connected with the linear guide 401 to drive the protection cylinder 501 and the load sensor 5 to move forward and backward, and the clamping mechanism 3 is vertically connected to the upper cover of the detected stapler. At the same time, it ensures that no displacement occurs during the pressing process. When the detected stapler is stapling, with the downward movement of the up-and-down beam 4, the angle of the upper cover of the stapler changes continuously, and the hinge device 503 rotates accordingly to ensure that the load sensor 5 is always subjected to a vertical When the vertical moving beam 4 goes down, the linear guide 401 can move back and forth to adapt to changes in space. In the above unit stroke, the load cell 5 force measuring system measures the load from the detected stapler in real time and displays it digitally, and the computer 6 can display the (load-time) curve of the entire test process in real time through software.

Wherein, a preferred manner of the protection cylinder 501 is: selecting the effective cross-sectional area of the protection cylinder to be about 8 cm ² , and the protection load is shown in Table 1.

Table 1. Theoretical output value (protection range) of the corresponding air pressure of the protection cylinder:

Corresponding air pressure/Kpa 100 200 300 400 500 600 Theoretical output/N 78.4 156.8 235.2 313.6 392 470.4

Remarks: Theoretical output (N) = effective cross-sectional area (cm ² ) * air pressure (bar) * 9.8

Considering that a single test may be interfered by accidental factors, this method requires repeated tests, usually 5-6 times, the highest and lowest values are generally removed, and the average values of the middle groups are used as the final test data.

The following are test examples:

The samples are Chenguang 12# ordinary, 12# labor-saving and heavy-duty staplers, which are respectively loaded into the testing machine and tested for nailing force. in:

During the test of the above 12# ordinary and 12# labor-saving staplers, the air pressure of the protection cylinder was adjusted to 350kPa, and the air pressure of the protection cylinder 5 was adjusted to 500kPa during the test of the above-mentioned heavy-duty stapler. In the above-mentioned test process, the pressing stroke speed is all set to 3000mm/min, and the test is carried out by using the stapler nailing force detection device of the present invention, and the test results are shown in Table 2.

Table 2. Stapling force values (N) of Chenguang staplers with different specifications

It can be seen from Table 2 that the deviations of the maximum nail bending force of the three groups of staplers relative to the average value are 3.5%, 2.7%, and 2.5%, respectively, and the deviations of the minimum value relative to the average value are 1.7%, 4.5%, and 3.6%, respectively. . The discreteness of the data is very small, indicating that the accuracy of the data is very high.

It can be seen from the test example that the stapler nailing force detection device of the present invention can accurately measure the staple force of different samples under artificial conditions and under different working conditions, and characterize the staple force scientifically and reasonably. The nailing force value of the book machine provides a strong scientific and technological support for the improvement of product quality and the research and development of new products.

The terms and expressions based here are only for description, and the present invention should not be limited to these terms and expressions. The use of these terms and expressions is not intended to exclude any equivalents of those shown and described (or portions thereof), and it should be recognized that various modifications that may exist should also be included within the scope of the claims. Other modifications, changes and substitutions may also exist. Accordingly, the claims should be considered to cover all such equivalents.

Also, it should be pointed out that although the present invention has been described with reference to the current specific embodiments, those skilled in the art should realize that the above embodiments are only used to illustrate the present invention, without departing from the present invention. Various equivalent changes or substitutions can also be made under the spirit of the present invention. Therefore, as long as the changes and modifications of the above-mentioned embodiments are within the scope of the essential spirit of the present invention, they will fall within the scope of the claims of the present invention.

Claims (13)

1. A stapler nailing force detection device, characterized in that it comprises a complete machine frame (1), a fixing mechanism (2), a clamping mechanism (3), a load sensor (5), a buffer device, and a front and rear displacement device , move the beam (4) up and down, the power output device (8) and the control system unit, The whole machine frame (1) is configured to carry the weight of the entire detection device; The fixing mechanism (2) is configured to fix the detected stapler on the operating platform (102); The clamping mechanism (3) is configured to clamp the upper cover of the detected stapler; The load sensor (5) is configured to collect detection data of the detected stapler; The buffer device is configured to protect the detection device and avoid the occurrence of overload during the detection process; The front and rear displacement device is arranged to allow the buffer device to move freely in a defined direction to ensure that the force received by the load sensor (5) is maintained as a vertical force; The up and down moving beam (4) is arranged to be able to move up and down; The power output device (8) drives the up and down moving beam (4) to move up and down in an orderly manner; The control system unit is connected with the power output device (8), the control system unit includes a computer (6) and a security module (7), the computer (6) is used for processing the collected detection data, and the The security module described above is used to deal with emergencies during the test. 2. The stapler nailing force detection device according to claim 1, wherein the whole machine frame (1) comprises a box frame (101), an operation platform (102), a support seat (103) and a Upper cover (104). 3 . The stapler nailing force detection device according to claim 2 , wherein the bottom frame of the whole machine frame ( 1 ) is an open box structure, that is, a box frame ( 101 ), and the box The material of the bottom four corner supports of the body frame (101) is hard rubber or hard resin, and the upper frame of the whole machine frame (1) is an open cavity structure. 4. The stapler nailing force detection device according to claim 1, wherein the fixing mechanism (2) comprises a stapler left and right fixing device (201), an upper and lower lever fixing device (202), a lever pressing tightening knob (205), fixing module (206), pushing device (207), pressing rod (208) and push rod (209). 5. The stapler nailing force detection device according to claim 4, wherein a guide groove (203) is provided on the operating platform (102), and the left and right fixing devices (201) of the stapler and The upper and lower lever fixing device (202) is assembled in the guide groove (203) through the lower end positioning block (204). 6. The stapler nailing force detection device according to claim 1, wherein the clamping mechanism (3) comprises a stapler upper cover clamping device (301), a baffle plate (302), a left and right pressure The tightening knob (303), the upper and lower compression knobs (304), the latch (305), the fixing nut (306), the connecting thread (307), the left and right compression blocks (308) and the upper and lower compression blocks (309). 7. The stapler nailing force detection device according to claim 6, wherein the load sensor (5) and the stapler upper cover holding device (301) in the clamping mechanism (3) ) is connected, and the sensing direction of the load sensor (5) is perpendicular to the upper cover of the detected stapler. 8. The stapler nailing force detection device according to claim 6, wherein the buffer device is a protection cylinder (501), and the protection cylinder (501) and the load sensor pass through a hinge device (503) ) connection, the protection cylinder (501) is always filled with gas, and the piston rod of the protection cylinder (501) is always in an extended state. 9. The stapler nailing force detection device according to claim 8, wherein the front and rear displacement device is a linear guide rail (401), and the protection cylinder (501) is connected to the linear guide rail (401). , the connecting thread (307) is connected with the piston rod of the protection cylinder (501). 10 . The stapler nailing force detection device according to claim 9 , wherein the power output device ( 8 ) is a transmission mode in which a servo motor ( 801 ) and a ball screw ( 803 ) cooperate, and the The power output device (8) additionally includes a conveyor belt (802), a guide sleeve (804), a guide column (805) and a limiting device (806), and the lower end of the upper and lower moving beam (4) is connected with the linear guide rail (401) , the upper end of the up-and-down moving beam (4) is connected with the ball screw (803) and the guide column (805). 11. The stapler nailing force detection device according to claim 10, wherein the safety module (7) comprises a foot emergency stop device (701), and the safety module (7) comprises an "emergency stop" ", "start", "stop", "rise", "fall" operation functions, the computer (6) and the safety module (7), the load sensor (5) and the servo motor (801) connected. 12. A detection method for detecting the nailing force of a stapler by using the stapler nailing force detection device of claim 1, wherein the method comprises the following steps: a) Select the detected pressing point of the upper cover of the stapler, and fix the position of the upper cover in the clamping mechanism (3); b) setting the control system to move the up-and-down beam (4) to an appropriate position, and place the base of the detected stapler horizontally into the fixing mechanism (2) for fixing; c) setting the control system, according to the detected natural height of the stapler, select the appropriate height of the upper and lower moving beam (4) to be set as the starting point of the detected stapler; d) adjusting the buffer device according to the detected stapler type; e) operate the computer (6), set to the force value drive mode, set the stroke speed and the load force value, when the load sensor (5) receives the load force value, the up and down moving beam (4) Immediately stop the pressing action and start the return action; f) Start the control system, drive the up and down moving beam (4) to move downward, so that the detected stapler completes three actions of removing staples, feeding paper, and bending staples. When the actual load force value reaches the set load When the force value is reached, the up and down moving beam (4) automatically ends and resets; g) If the set force value fails to make the detected stapler complete the complete stapling action, select one of the following two adjustment schemes to perform the stapling force detection again: g1) Increase the load force value; g2) operate the computer (6), set to the stroke drive mode, read out the lowest point of the moving beam last time, and increase the stroke of 0-1mm according to the actual nailing effect as the end point of the moving beam up and down; h) Collecting data with the load sensor (5) and processing with the computer (6) to obtain a detection result. 13. The detection method according to claim 12, wherein the buffer device is a protection cylinder (501), and in step d), the protection is set when the detected stapler is a general stapler or a labor-saving stapler The air pressure is 300Kpa, and when the detected stapler is a heavy duty stapler, the protective air pressure is set to 500Kpa.

Images