TWI566854B - Automatic assembly method of fixture and plate - Google Patents

Description

Automatic assembly method of fixing device and plate

The invention provides an automatic assembly method of a fixing device and a plate, in particular, the pressing plate can be pressed against the jig by using an automatic unloader, and the cap body of the fixing device is dropped toward the working platform to the plate. In the through hole, the ejector pin of the punching mechanism is used to punch the sleeve into the sleeve, and the ring convex body is forced into the through hole of the plate to be integrated.

Pressing, the general panel (board-to-board) is assembled by using a positioning screw with a knob, a collar and a screw to fix the screw and the collar to the first panel, and to rotate The knob is used to lock the screw into the second panel to form a preset position, and then the hand tool is used to lock the screw, so that the first panel and the second panel are locked and fixed into one body, and can be used in a telecom cabinet, an industrial computer. The working machine and the like use a device composed of a plurality of devices and a mechanism to be used for board-to-board connection.

Furthermore, some manufacturers have developed such a floating screw composed of a cap, a screw and a positioning seat, and fastened the positioning seat of the floating screw to the perforation of the plate, and then locked the screw with another screw. The plate is fixed, and when the user removes the plate, the floating screw can still be fixed in the perforation of the plate through the positioning seat without loss, and another manufacturer has developed another type of tool for the user to use the hand tool. For the positioning device for fixing or separating the plate, please refer to the eleventh and twelfth drawings, wherein the sleeve A has a ring convex at the periphery of the perforation A1. The portion A11 is provided with a positioning portion A2 below the through hole A1, and the fixing member B has a head portion B1 located above the sleeve A, and extends downwardly at the bottom surface of the head portion B1 to penetrate into the through hole A1. The shaft B2 and the joint portion B21, and the shaft B2 is formed at an outer side adjacent to the joint portion B21 to form an annular blocking portion B22 that is blocked on the annular convex portion A11, and the shaft B2 is sleeved on the sleeve A. The elastic member B3 between the fixing member B and the end of the elastic member B3 is abutted against the annular abutting body A21 of the positioning portion A2, and the elastic end of the elastic member B3 is elastically deformed against the bottom surface of the head portion B1. An outer sleeve B4 is coupled to the head B1 to form a fixing device.

When the sleeve A and the plate C are assembled, the sleeve A is first turned down to form Inverted, and placed by the head B1 of the fixing member B into the concave die hole D11 of the die D of the press mold D, and then placed the plate C downward on the positioning portion A2 of the sleeve A, and The periphery of the engaging hole C1 abuts against the positioning post A22 extended by the positioning portion A2, and can be punched down on the plate C and the positioning portion A2 by the die D2, and the elastic member B3 is subjected to the annular abutment of the positioning portion A2. After the action of the body A21 is pressed, an elastic deformation displacement is obtained, and the top of the sleeve A is stopped at the bottom surface of the head B1 of the fixing member B, and the positioning post A22 can be riveted to the joint hole C1 of the sheet C. At the same time, the joint hole C1 is partially deformed and embedded in the annular groove A221 on the outer surface of the positioning post A22, whereby the positioning portion A2 of the sleeve A can be riveted to the joint hole C1 of the sheet C, which is not easy to loose or fall off. .

However, in the process of placing the sheet C on the sleeve A, it is easy to be due to the elastic member. B3 is caused by the ringing of the annular abutting body A21 of the positioning portion A2, causing the sleeve A to float or shift, and the overall structural stability is poor, so that the engaging hole C1 of the sheet C is abutted against the positioning portion A2. It is not easy to maintain a stable state on the column A22, and causes subsequent pressing modes. The inconvenience and difficulty in the D punching operation, and the positioning portion A2 of the sleeve A is difficult to maintain in the center position after the joint hole C1 of the plate C is riveted, and the joint portion B21 of the fixing member B is intended to be locked to another plate. When the keyhole is inside, the fixing component B must be deflected by an angle to perform the locking operation, so that the locking hole is likely to be misaligned or deformed, and even the joint B21 may be broken or broken. When it occurs, the product defect rate is greatly increased, thereby affecting the overall manufacturing quality and yield; in addition, the die hole D11 of the die holder D1 is matched with the head B1 and the outer sleeve B4 of the fixing component B in a blind hole shape. The sensor hole can not be installed in the die hole D11, and the sensor is matched with the automatic unloader to perform the in-position detection action of the discharging device, and then the pressing die D is used for the pressing processing operation, so as to be fixed. The device can only perform the action of discharging and reclaiming by manual assembly, which not only requires a large amount of manpower but is time-consuming and labor-intensive, resulting in an inability to effectively increase the production capacity, and also in the process of manual discharging and reclaiming. It may be dangerous due to the malfunction of the die D2. With the continuous improvement of the processing technology, it is also necessary to consider the production automation requirements, in order to improve the production efficiency and reduce the cost, which is the key to the research and improvement of those engaged in this industry. Where.

Therefore, the inventors have considered the problems and disadvantages of the increase in product yield due to the riveting of the sleeves of the conventional fixing device and the joint hole of the plate, and the inability to effectively increase the productivity due to the manual assembly method, and collect relevant data through multi-party evaluation and consideration. And using the trial and modification of the industry's many years of research and development experience, the invention patent for the automatic assembly method of such fixtures and plates was born.

The main purpose of the present invention is to first place the sheet on the working platform so that the through hole is aligned with the die hole of the jig, and press the plate with the automatic unloader to resist the treatment. The clamping position is formed on the upper part, and the automatic unloader can drop the outer casing of the fixing device in the pipeline downward into the through hole toward the working platform and in the die hole, and the ring convex body of the sleeve abuts against the through hole At the periphery of the hole, the thimble in the pipe is pressed down to the sleeve by the punching mechanism, and the ring convex body is forced into the inner wall surface of the through hole to form a riveting portion, and the riveting portion of the plate is partially embedded. The yoke and the automatic ejector of the to-be-punched mechanism are integrated into the concave ring groove of the outer diameter of the ring convex body and the outer surface of the convex ring seat which is fixed below the concave ring groove and larger than the outer diameter of the ring convex body. The device is returned to the original position, and the plate and the fixing device are taken out of the working platform, thereby achieving high automation, improving production efficiency, simplifying the production line and being more cost-effective.

The secondary object of the present invention is that the working platform is located in the hollow hole of the fixture. Inside, there is a sensor. When the sensor detects the fixing device and the cap body has entered the die hole and has reached the predetermined position, the thimble of the punching mechanism is started to be punched down on the sleeve of the fixing device. And the ring protrusion is forced into the inner wall surface of the through hole of the plate to form a stepped riveting portion, and the ring protrusion of the sleeve is forced into the through hole of the plate to interlock the outer cap The sleeve is close to the sensor for in-position detection, and the sensor is used to confirm that the ring protrusion of the sleeve has been completely forced into the through hole of the plate to be riveted and combined, so that the thimble of the punching mechanism is displaced upward along the pipe. And the automatic unloader is linked to the punching mechanism to return to the original position.

Another object of the present invention is to pass the automatic feeder conveying fixture When the communication port of the pipe enters the straight pipe, the ejector pin of the punching mechanism is started to be displaced downward along the straight pipe to the communication port to stop the action, and the thimble is blocked by the other fixing device to ensure the automatic discharge device cooperates. During the conveying process of the punching mechanism, only a single fixing device will fall into the through hole of the plate at a time, and the thimble of the punching mechanism will be returned to the original position after the punching action is completed, so as to facilitate the automatic feeder to transport another A fixture performs a subsequent stamping action.

1‧‧‧ plates

11‧‧‧through hole

12‧‧‧ Riveting Department

2‧‧‧Fixed devices

21‧‧‧Sleeve

210‧‧‧Perforation

2101‧‧‧ accommodating slots

211‧‧‧ ring convex

2111‧‧‧ guiding slope

212‧‧‧ concave ring groove

213‧‧‧ convex ring body

214‧‧‧ annular barrier

215‧‧‧Resist shoulders

22‧‧‧Fixed components

221‧‧‧ head

222‧‧‧ shaft

223‧‧‧ fixed department

2231‧‧‧ external thread

2232‧‧‧Top push surface

224‧‧‧Flexible components

23‧‧‧Outer cap body

230‧‧‧ accommodating space

231‧‧‧Docking Department

232‧‧‧Resistance Department

3‧‧‧Working platform

31‧‧‧ fixture

311‧‧‧Mold hole

32‧‧‧ Sensors

4‧‧‧Automatic Discharger

41‧‧‧ Pipes

411‧‧‧ oblique tube

412‧‧‧ straight tube

413‧‧‧Connected

414‧‧‧export

5‧‧‧Punching mechanism

51‧‧‧ thimble

A‧‧‧ sleeve

A1‧‧‧ perforation

A11‧‧‧ ring convex

A2‧‧‧ Positioning Department

A21‧‧‧Ring-inhibiting body

A22‧‧‧Positioning column

A221‧‧‧Round groove

B‧‧‧Fixed components

B1‧‧‧ head

B2‧‧‧ shaft

B21‧‧‧ joint

B22‧‧‧Ring Block

B3‧‧‧Flexible components

B4‧‧‧Outer casing

C‧‧‧ plates

C1‧‧‧ joint hole

D‧‧‧Pressure mould

D1‧‧‧ mold base

D11‧‧‧Drill hole

D2‧‧‧die

The first figure is a flow chart of the steps of the automated assembly of the present invention.

The second figure is a side cross-sectional view of the panel of the invention placed on the jig of the work platform.

The third figure is a side cross-sectional view of the automatic unloader of the present invention for forming a clamping position by pressing the plate against the jig.

Figure 4 is a side cross-sectional view showing the pipe conveyor fixing device of the automatic unloader of the present invention.

Figure 5 is a side cross-sectional view showing the outer cap of the fixing device of the present invention as it passes down the pipe and falls into the through hole of the plate and the sleeve abuts against the periphery of the through hole.

The sixth figure is a side cross-sectional view of the punching mechanism of the present invention in which the thimble in the pipe is pressed down to the through hole of the sleeve and the plate.

The seventh figure is a side cross-sectional view of the ejector pin and the automatic unloader of the stamping mechanism of the present invention after returning to the original position.

Figure 8 is a perspective view of a preferred embodiment of the present invention.

Figure 9 is a side cross-sectional view of a preferred embodiment of the present invention.

Figure 10 is a side cross-sectional view showing another preferred embodiment of the present invention.

Figure 11 is a side cross-sectional view of a conventional fixture.

Figure 12 is a side cross-sectional view of a conventional fixture and plate riveted.

In order to achieve the above objects and effects, the technical means and constructions of the present invention will be described in detail with reference to the preferred embodiments of the present invention.

Please refer to the first, second, third, fourth, fifth, sixth, seventh and eighth figures, which are respectively a flow chart of the steps of the automated assembly of the invention, a side view of the sheet placed on the fixture of the working platform, The side view of the automatic pressing device for pressing the plate against the jig to form a clamping position, the side cross-sectional view of the pipe conveyor fixing device of the automatic unloader, and the outer cap body of the fixing device pass downward a side view of the pipe that falls into the through hole of the plate and the sleeve abuts against the periphery of the through hole, and the side pin of the punching mechanism located in the pipe is pressed down to the side of the sleeve and the through hole of the plate The cross-sectional view of the cross-sectional view, the ejector of the punching mechanism and the automatic unloader are returned to the original position, and the perspective view of the preferred embodiment. It can be clearly seen from the figure that the present invention utilizes the plate 1 and the fixed The device 2, the working platform 3, the automatic unloader 4 and the punching mechanism 5, the automated assembly method comprises the following steps:

(a1) The sheet material 1 is placed on the surface of the jig 31 of the work platform 3 in order, and at least one of the through holes 11 on the sheet material 1 is aligned with the hollow mold hole 311 of the jig 31.

(a2) The automatic unloader 4 performs a table around the through hole 11 of the plate 1 At the surface, the plate 1 is placed against the jig 31 to form a clamping position, and the automatic dispenser 4 can sequentially displace the fixing device 2 in the pipe 41 toward the working platform 3 and make the fixing device 2 The cap body 23 passes down the pipe 41 and falls into the through hole 11 of the plate 1 and is located in the die hole 311 of the jig 31, and the sleeve 21 of the fixing device 2 having an outer diameter larger than the outer cap body 23 is looped. The convex body 211 is abutted at the periphery of the through hole 11.

(a3) using the ejector pin 51 of the punching mechanism 5 located in the duct 41 downward Pressing the sleeve 21 to cause the ring protrusion 211 to be forced into the inner wall surface of the through hole 11 to form a riveted portion 12, and the riveting portion 12 of the plate 1 is partially engaged with the ring protrusion 211 The concave ring groove 212 of the radial shape and the outer surface of the convex ring seat 213 having an outer diameter larger than the annular convex body 211 are integrally joined.

(a4) The ejector pin 51 of the punching mechanism 5 and the automatic hopper 4 are returned upward After the original position, the sheet 1 and the fixing device 2 are taken out together with the fixture 31 of the working platform 3, and the automatic assembly operation of the sheet 1 and the fixing device 2 is completed.

It can be clearly seen from the above implementation steps that the above components are actually assembled. The step of taking the metal substrate by using the pick-and-place portion on the robot arm and placing it on the mold base of the punching machine can be formed by punching down the surface of the metal substrate or forming one or a plurality of predetermined sizes of the sheet 1 and at least one through hole 11 on the surface of the sheet 1, and then placing the sheet 1 on the surface of the jig 31 of the work platform 3 in order, and respectively aligning the through holes 11 of the sheet 1 At the die hole 311 of the jig 31, the automatic unloader 4 at the top of the work platform 3 can be started to press the surface around the through hole 11 of the plate 1 and the plate 1 is attached to the jig 31. A clamping position is formed on the surface of the die hole 311, and the vibrating feeder sequentially transports the fixing device 2 into the pipe 41 of the shape of the automatic feeder 4Y, and is adjacent to the oblique pipe 411 of the pipe 41 through the straight pipe 412. At the communication port 413 of the connection, the fixing device 2 is transported and displaced toward the working platform 3 by the outlet 414 below the straight tube 412, and the cap body 23 is allowed to pass downward through the outlet 414. , it will fall into the through hole 11 of the plate 1 and be located in the hollow hole 311 of the jig 31. While the outer diameter of the fixing device 2 is larger than the outer sleeve 23 of the cap is formed of a ring-fixing protuberance 21 on the inclined plane abutting on 11 2112111 periphery of the through hole.

The inside of the hollow mold hole 311 of the jig 31 is provided with at least one feeling. The preferred embodiment of the detector 32 is a proximity switch, but in practical applications, the sensor 32 is also It can be an infrared distance sensor, an ultrasonic sensor or other sensor with in-position detection function. When the sensor 32 detects the fixing device 2, the cap body 23 enters the depth into the die hole 311. After the distance has reached the predetermined position, the ejector pin 51 of the punching mechanism 5 in the straight tube 412 of the pipe 41 is started to be directly pressed down onto the sleeve 21 of the fixing device 2, and is forced by the ring protrusion 211 of the sleeve 21. The inner wall surface of the through hole 11 of the plate 1 is deformed to form a stepped riveting portion 12, and the riveting portion 12 of the plate 1 is partially recessed in the concave ring groove 212 of the outer diameter of the ring convex body 211. And engaging on the outer surface of the collar body 213 having an outer diameter larger than the ring protrusion 211 to be integrated.

When the ejector pin 51 of the punching mechanism 5 is stamped on the sleeve 21 of the fixing device 2 When entering the through hole 11 of the plate 1, the sleeve 21 can be connected to the outer cap sleeve 23 to be close to the sensor 32 for in-position detection, and the sensor 32 is used to confirm that the ring protrusion 211 of the sleeve 21 has been After being completely forced into the through hole 11 of the plate 1, the ejector pin 51 of the punching mechanism 5 is displaced upward along the pipe 41, and is automatically returned to the original position by the automatic unloader 4, and then the mechanical arm is used. The pick-up portion or the suction cup is used to take out the assembled sheet 1 together with the fixing device 2 at the jig 31 of the working platform 3, thereby completing the automatic assembly operation of the sheet 1 and the fixing device 2, and further placing it on the conveying device. After the conveyor belt of the equipment is transported to other stations, the subsequent related processing operations are carried out, thereby achieving high automation, improving production efficiency, simplifying the production line and lowering the cost.

However, the automatic feeder 4 conveying fixing device 2 described above passes through the pipe 41. When the communication port 413 enters the straight-through pipe 412, the ejector pin 51 of the punching mechanism 5 in the pipe 41 is started to be displaced downward along the straight pipe 412 to the communication port 413, and then the action is stopped and blocked by the ejector pin 51. On another fixing device 2 to ensure automatic dispenser 4 During the process of conveying the punching mechanism 5, only a single fixing device 2 is dropped into the through hole 11 of the plate 1 through the pipe 41, and the ejector pin 51 of the punching mechanism 5 completes the punching action on the fixing device 2. After that, it will be returned to the original position to facilitate the automatic feeder 4 to transport another fixing device 2 for subsequent punching action.

Please refer to the ninth and tenth drawings, which are respectively preferred embodiments of the present invention. A side cross-sectional view of another preferred embodiment and a side cross-sectional view of another preferred embodiment, as best seen in the drawings, wherein the sleeve 21 of the fixing device 2 has a perforation 210 inside, and a ring protrusion at the outer bottom of the perforation 210 A concave ring groove 212 with a reduced outer diameter is disposed at a lower portion of the 211, and a convex ring seat 213 having an outer diameter larger than the ring protrusion 211 is disposed below the concave ring groove 212, and the through hole 210 of the sleeve 21 is inserted therein. The shaft 222 and the fixing portion 223 of the fixing member 22 are downwardly extended from the bottom surface of the head portion 221, and the elastic member 224 between the sleeve 21 and the fixing member 22 is sleeved on the shaft 222, and the head of the fixing member 22 is disposed. The 221 is combined with a cap body 23 having an outer diameter not greater than the outer ring body 211, so that the sleeve 21, the fixing member 22 and the outer cap body 23 are assembled to be in a state of active docking.

Furthermore, the top of the through hole 210 of the sleeve 21 is a recessed receiving groove. 2101, the outer side of the outer side of the through hole 210 is provided with an annular blocking portion 214, and the two ends of the elastic member 224 are elastically supported by the receiving groove 2101 of the sleeve 21 and the bottom surface of the head portion 221 of the fixing member 22, and are elastically deformed. The outer surface of the fixing portion 223 of the fixing member 22 is formed with an external thread 2231, and the outer cap body 23 has an accommodating space 230 therein, and is provided at the top of the accommodating space 230 of the outer cap body 23 for the head 221 The abutting portion 231 is combined with the abutting portion 232 that can block the annular blocking portion 214 at the opening below the accommodating space 230. This is an implementation state of the preferred embodiment of the present invention.

When utilizing the above-described automated assembly method of the fixing device and the sheet material of the present invention, The outer cover body 23 of the fixing device 2 can be inverted downward to form an inverted shape, and penetrates from the top to the bottom in the corresponding through hole 11 of the plate member 1, and the ring protrusion 211 of the sleeve 21 abuts against the through hole. After the periphery of the 11th, the stamping process is performed on the sleeve 21 so that the ring protrusion 211 is forced downwardly into the inner wall surface of the through hole 11 of the sheet material 1 to be deformed to form the riveting portion 12, which can be formed by the sheet material 1. The riveting portion 12 is partially engaged in the concave ring groove 212, and is covered by the riveting portion 12 on the outer surface of the convex ring seat 213 to form a limit of the longitudinal blocking and the lateral clamping, so that the ring protrusion 211 and The convex ring seat body 213 is fixedly fixed at the riveting portion 12 of the plate material 1 to form a double limit function of the buckle and the covering and clamping, so as to effectively strengthen the structural strength of the sleeve 21 riveted to the through hole 11 of the plate material 1 . Moreover, the shear strength of the whole body can be increased, so that the sleeve 21 is not pulled off or separated by external force drawing and shaking, and the tight combination with the sheet 1 is not easy to skew, thereby achieving structural stability, firm assembly and positioning. It works.

However, the sleeve 21 described above is a receiving groove 21 in which the through hole 210 can be omitted. 01 structural design, and at the top of the perforation 210 is provided with an inwardly-fitting abutting shoulder 215, and the outer surface of the fixing portion 223 of the fixing member 22 is formed with an external thread 2231 or a blocking block for fastening is only one kind In a preferred embodiment, a pushing surface 2232 may be formed on the lateral surface adjacent to the shaft 222 above the cylindrical fixing portion 223, and the elastic member 224 has one end abutting against the abutting shoulder of the sleeve 21. 215, and the other end of the elastic member 224 is elastically deformed against the pushing surface 2232 of the fixing portion 223, which is an implementation state of another preferred embodiment of the present invention.

Therefore, the present invention is mainly directed to placing the sheet 1 on the work platform 3 so that The through hole 11 is aligned with the die hole 311 of the jig 31, and is carried out by the automatic unloader 4. The pressing plate 1 is pressed against the jig 31 to form a clamping position, and the automatic unloader 4 can displace the outer cap body 23 of the fixing device 2 in the pipe 41 toward the working platform 3 and fall down to the plate 1 After the through hole 11 is located in the die hole 311 of the jig 31, and the ring protrusion 211 of the sleeve 21 abuts against the periphery of the through hole, the ejector pin 51 located in the pipe 41 by the punching mechanism 5 is punched down. The sleeve 21 is configured such that the ring protrusion 211 is forced into the inner wall surface of the through hole 11 to form a stepped riveting portion 12, which can be partially engaged with the ring protrusion by the riveting portion 12 of the plate 1. The body 211 is folded into the concave ring groove 212 of the outer diameter, and is fixed to the outer surface of the convex ring seat 213 having an outer diameter larger than the ring convex body 211, and is integrated into the ejector pin 51 of the punching mechanism 5 and the automatic discharger 4 After returning to the original position, the sheet 1 is taken out together with the fixing device 2 at the working platform 3, thereby achieving high automation, improving production efficiency, simplifying the production line and being more cost-effective.

The above detailed description is intended to be illustrative of a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and other equivalents and modifications may be made without departing from the spirit of the invention. Changes are intended to be included in the scope of the patents covered by the present invention.

In summary, the above-mentioned automatic assembly method of the fixing device and the plate material can surely achieve its efficacy and purpose, so the invention is an invention with excellent practicability, and is in fact conforming to the application requirements of the invention patent, and submitting an application according to law. I hope that the trial committee will grant this case as soon as possible to protect the inventor's hard work. If there is any doubt in the bureau, please do not hesitate to give instructions to the inventor, and the inventor will try his best to cooperate with him.

Claims (9)

The invention relates to an automatic assembly method of a fixing device and a plate, which utilizes a plate, a fixing device, a working platform, an automatic discharging device and a punching mechanism, and the automatic assembling method comprises the following steps: (a1) placing the plates in order On the surface of the jig of the working platform, and at least one through hole on the plate is respectively aligned with the hollow hole of the jig; (a2) the automatic unloader is pressed on the surface of the through hole of the plate, and The plate is placed against the jig to form a clamping position, and the automatic unloader can sequentially displace the fixing device in the pipe toward the working platform, and the cap body outside the fixing device passes down the pipe and falls into the The sleeve in the through hole of the plate is located in the die hole of the fixture, and the sleeve having the outer diameter of the fixing device is larger than the sleeve of the outer cap is supported by the ring protrusion at the periphery of the through hole, and the inside of the die hole of the fixture is set Having a sensor, and when the sensor detects that the depth of the cap body into the die hole has reached a predetermined position, the ejector pin of the punching mechanism is started to be punched down on the sleeve; (a3 ) using a stamping mechanism in the pipeline The needle is pressed down to the sleeve so that the ring convex body is forced into the inner wall surface of the through hole of the plate to form a stepped riveting portion, and the riveting portion of the plate is partially indented to the ring convex body to be reduced. The outer diameter of the concave ring groove, and the outer surface of the convex ring seat having the outer diameter larger than the annular convex body are integrated into one body; (a4) the ejector pin of the punching mechanism and the automatic discharger are returned to the original position, and then The sheet and the fixture are taken out together with the fixture, and the automated assembly of the fixture and the sheet is completed. The method for automatically assembling a fixing device and a sheet according to claim 1, wherein in the step (a2), when the automatic feeder conveying fixing device is dropped into the through hole of the plate through the pipe, The ejector that initiates the stamping mechanism in the pipe is displaced downwardly and is blocked by the thimble to another fixture to facilitate the stamping action of the top of the stamping mechanism for a single fixture. The method for automatically assembling a fixture and a sheet according to claim 1, wherein in the step (a4), when the ejector pin of the punching mechanism is punched into the through hole of the sleeve, the ring protruded into the through hole of the plate. The sleeve is interlocked with the outer cap body to be in position detection, and after the sensor confirms that the ring protrusion of the sleeve has completely forced into the through hole of the plate, the punching mechanism and the automatic discharging are started. The device is reset back to its original position. The method of automatically assembling a fixture and a sheet according to claim 1, wherein the sensor is a proximity switch, an infrared distance sensor or an ultrasonic sensor. The method for automatically assembling a fixture and a sheet according to claim 1, wherein the sleeve of the fixture has a perforation, and a concave ring groove with a reduced outer diameter is disposed below the ring protrusion at the outer bottom of the perforation. And a convex ring seat body having an outer diameter larger than the ring convex body is disposed below the concave ring groove, and the through hole of the sleeve penetrates the shaft body and the fixing portion extending downward from the bottom surface of the fixing component head, and is disposed on the rod The body is sleeved with an elastic member, and the head of the fixing member is combined with a cap body having an outer diameter not larger than the ring protrusion. The method for automatically assembling a fixing device and a sheet according to claim 5, wherein the perforated top of the sleeve is a recessed receiving groove, and the outer side of the perforation is provided with an annular blocking portion and is composed of an elastic member. The two ends are respectively elastically supported by the accommodating groove and the bottom surface of the fixing member to be elastically deformed, and the outer cap body has an accommodating space inside and the outer cap The top of the accommodating space of the casing is provided with an abutting portion for the head to be combined, and the opening below the accommodating space is formed with a resisting portion that blocks the annular blocking portion. The method of automatically assembling a fixture and a sheet according to claim 5, wherein the perforated top of the sleeve is provided with an inwardly-turning abutting shoulder and adjacent to the rod above the fixing portion of the fixing member. The lateral surface of the body is formed with a pushing surface, and one end of the elastic member abuts against the abutting shoulder of the sleeve, and is elastically deformed by the other end of the elastic member against the pushing surface of the fixing portion. The method for automatically assembling a fixing device and a sheet according to claim 1, wherein the Y-shaped pipe of the automatic unloader has a diagonal pipe and a straight pipe, and is adjacent to the oblique pipe and the straight pipe. A communication port is formed for the fixing device to pass through the oblique pipe and into the straight pipe, and an outlet for the fixing device to be displaced in the direction of the working platform is formed below the straight pipe. The method for automatically assembling a fixture and a sheet according to claim 8, wherein the ejector pin of the punching mechanism is a through hole of a sleeve and a plate which is punched in the straight pipe of the automatic discharger pipe for punching the fixing device. Combine into one.