CN113814687B - Automatic positioning piece press-fitting device and positioning piece press-fitting method - Google Patents

Abstract

The invention discloses an automatic positioning piece press-fitting device and a positioning piece press-fitting method, the device comprises a rack, an automatic feeding mechanism, a discharging mechanism and a pressure head, the automatic feeding mechanism comprises a charging barrel, a stirrer, a conveying pipe and a discharging frame, the stirrer is arranged at the bottom in the charging barrel, at least one discharging hole is arranged at the bottom of the charging barrel, the conveying pipe is arranged corresponding to the discharging hole of the charging barrel, the discharging frame is provided with a feeding hole and a discharging column, one end of the conveying pipe is connected with the discharging hole of the charging barrel, the other end of the conveying pipe is connected with the feeding hole of the discharging frame, the discharging column is of a hollow structure and is communicated with the feeding hole, and the discharging frame is fixedly arranged on the top surface of a middle pressure plate of the rack. According to the automatic press-fitting device, the positioning piece can be automatically blanked through the charging barrel and the stirrer, the positioning piece can be automatically transmitted through the conveying pipe, the positioning piece is ejected out to the pressing head through the discharging frame matched with the discharging mechanism, and the positioning piece is pressed and mounted on the workpiece through the pressing head, so that the automatic press-fitting of the positioning piece is realized, and the press-fitting efficiency of the positioning piece is greatly improved.

Description

Automatic positioning piece press-fitting device and positioning piece press-fitting method

Technical Field

The invention relates to a press-fitting device, in particular to an automatic press-fitting device and a press-fitting method for a positioning piece.

Background

The existing tool product is provided with a workpiece, a positioning structure is designed on the workpiece, and the positioning structure can be positioned in a spring and steel ball mode or other elastic positioning pieces; as shown in fig. 1, a schematic structural diagram of a workpiece 10 (shown in the figure as an aluminum cover) is provided, a plurality of ball holes 101 are formed in the workpiece, a spring and a steel ball are placed in each ball hole, the steel ball is constrained in the ball hole of the workpiece by using a tool, so that the steel ball cannot fall off, the press-fitting depth and the press-in pressure of the steel ball are difficult to control, certain instability is brought to the quality of the workpiece, and the positioning piece is pressed manually, so that the efficiency is low, and the precision is poor.

Disclosure of Invention

The invention aims to provide an automatic positioning piece press-mounting device and a positioning piece press-mounting method, which can improve the quality stability of workpieces and improve the machining efficiency.

In order to achieve the above purpose, the solution of the invention is:

an automatic press-fitting device for positioning pieces comprises a rack, an automatic feeding mechanism, a discharging mechanism and a pressure head;

the rack comprises an upper pressing plate, a middle pressing plate and a lower pressing plate which are arranged at intervals, and the workpiece is fixedly arranged on the top surface of the middle pressing plate;

the automatic feeding mechanism comprises a charging barrel, a stirrer, a conveying pipe and a discharging frame, wherein the stirrer is arranged at the bottom in the charging barrel, and the bottom of the charging barrel is provided with at least one discharging hole; the conveying pipe is arranged corresponding to the discharge hole of the material barrel, the discharging frame is provided with a feed inlet and a discharging column, one end of the conveying pipe is connected with the discharge hole of the material barrel, the other end of the conveying pipe is connected with the feed inlet of the discharging frame, the discharging column is of a hollow structure and is communicated with the feed inlet, the discharging frame is fixedly arranged on the top surface of a middle pressing plate of the rack, and a through hole penetrating through the upper end and the lower end of the middle pressing plate is arranged on the discharging column of the middle pressing plate corresponding to the discharging frame;

the discharging mechanism is arranged on the lower pressing plate and comprises a push rod and a driving mechanism, the push rod and the driving mechanism are arranged corresponding to the discharging column of the discharging frame, and the driving mechanism drives the push rod to move up and down and penetrate through the through hole of the middle pressing plate to push out the positioning piece positioned in the discharging column upwards;

the pressure head comprises a pressure head body, an installation part and a moving mechanism, the installation part is arranged at the bottom of the pressure head body, and the moving mechanism is arranged on the bottom surface of an upper pressure plate of the rack and moves between the discharge frame and the workpiece.

The number of the positioning pieces needing press mounting on the workpiece is the same as the number of the mounting parts on the pressure head, the number of the discharging columns on the discharging frame, the number of push rods on the discharging mechanism and the number of the discharge holes of the conveying pipe and the charging barrel; the ball holes for installing the positioning pieces on the workpiece correspond to a plurality of installation parts distributed on the pressure head, a plurality of push rod distribution positions of the discharging mechanism and a plurality of discharging columns distribution positions of the discharging frame.

The machine frame further comprises an upper guide rod and a lower guide rod, the upper guide rod is arranged between the top surface of the middle press plate and the upper press plate, the upper press plate can slide up and down along the guide rod, the lower guide rod is arranged between the bottom surface of the middle press plate and the lower press plate, and the workpiece and the discharge frame are arranged on the top surface of the middle press plate at intervals.

The bottom of the charging barrel is provided with a plurality of discharge ports, the stirrer is arranged at the bottom position in the charging barrel and provided with a plurality of axially through material guide holes which are arranged at equal intervals along the axial direction of the stirrer.

The stirrer is provided with a guide section which is obliquely arranged on one side corresponding to the rotating direction of each material guide hole, and a retainer ring which is higher than the material guide holes is arranged on one side of each material guide hole and the guide section.

Above-mentioned play work or material rest has ejection of compact support, and ejection of compact support's periphery is equipped with the feeding that corresponds feed cylinder discharge gate quantity and connects, and the feeding connects and is equipped with a feed inlet, each feeding connect a intercommunication ejection of compact post, a plurality of ejection of compact posts are vertical equidistant interval and set up on ejection of compact support.

When the push rod of the discharging mechanism is not ejected upwards, the top end of the push rod is flush with the lowest height of the feeding interface.

The one end that above-mentioned feeding connects and duct connections is great domatic for the range, forms the plane between domatic bottom to the ejection of compact post, and domatic and plane circular arc are excessive, and the setting element is carried to the feed inlet that the feeding connects after from the conveyer pipe, and the back is slowed down in the inflow plane, and the setting element of foremost flows in to the ejection of compact post on push rod top.

The installation department of above-mentioned pressure head is equipped with the hole that is used for placing magnet, and magnet inlays admittedly in the hole, and the junction of hole and installation department lower extreme face forms the setting element of arc type and places the district, and the lower extreme off-plate periphery of installation department is equipped with a plurality of spacing card walls that are equidistant interval setting, and the inner wall of a plurality of spacing card walls is the inclined plane.

A positioning piece press-fitting method using the automatic positioning piece press-fitting device comprises the following steps:

step A: a plurality of positioning pieces are placed in the charging barrel;

and B, step B: the stirrer rotates to enable the positioning piece to move and fall into the discharge hole of the charging barrel, and the positioning piece is conveyed to the feed hole of the discharge frame through the conveying pipe;

step C: the positioning piece positioned at the front end of the feeding hole enters the discharging column;

step D: a push rod of the discharging mechanism jacks up the positioning piece from the positioning column to the mounting part of the positioning piece pressing head;

step E: the moving mechanism of the pressure head drives the pressure head and the positioning piece on the pressure head to move to the upper part of the workpiece;

step F: the upper pressure plate drives the pressure head to press down to press the positioning piece on the installation part into the ball hole of the workpiece, and pressing is completed.

After the structure is adopted, the automatic blanking of the positioning piece can be realized through the charging barrel and the stirrer, the automatic transmission of the positioning piece is realized through the conveying pipe, the positioning piece is ejected to the pressing head through the discharging frame matched with the discharging mechanism, and the positioning piece is pressed on a workpiece by the pressing head, so that the automatic pressing of the positioning piece is realized. Compared with the conventional manual or semi-automatic press fitting of the positioning piece, the press fitting device disclosed by the invention can greatly improve the press fitting efficiency of the positioning piece, and can ensure the press fitting precision by utilizing the automatic press fitting of the device, thereby ensuring the stability of a workpiece.

Drawings

FIG. 1 is a schematic view of a prior art construction of a workpiece;

FIG. 2 is a schematic perspective view of the automatic press-fitting device for positioning members according to the present invention;

FIG. 3 is a cross-sectional view of the automatic press mounting device for positioning elements of the present invention, wherein the pressure head corresponds to the discharge frame;

FIG. 4 is a cross-sectional view of the automatic press mounting device for positioning members according to the present invention, showing the pressing head moving above the workpiece;

FIG. 5 is a cross-sectional view showing the pressing down of the upper platen in the automatic press-fitting apparatus for positioning members of the present invention;

FIG. 6 is a schematic perspective view of an automatic feeding mechanism in the automatic pressing device for positioning elements according to the present invention;

FIG. 7 is a side view of an automatic feed mechanism in the automatic press fitting apparatus for spacers according to the present invention;

FIG. 8 is a top view of the automatic feeding mechanism in the automatic press-fitting apparatus for positioning elements according to the present invention;

FIG. 9 is a sectional view of the automatic feed mechanism in the automatic press-fitting apparatus for positioning members according to the present invention;

fig. 10 is a sectional view of a mounting portion of a pressing head in the automatic press-fitting apparatus for a spacer according to the present invention.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can be, for example, connected, detachably connected, or integral; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 2 to 9, the invention provides an automatic press-fitting device for a positioning element, which comprises a rack 1, an automatic feeding mechanism 2, a discharging mechanism 3 and a pressure head 4. As a specific embodiment, the workpiece 5 is an aluminum cover, and the positioning piece 6 is a steel ball.

The rack 1 comprises an upper pressing plate 1A, a middle pressing plate 1B and a lower pressing plate 1C which are arranged at intervals, and a workpiece 5 is fixedly arranged on the top surface of the middle pressing plate 1B.

Automatic feed mechanism 2 includes feed cylinder 2A, agitator 2B, conveyer pipe 2C and goes out work or material rest 2D, agitator 2B sets up in feed cylinder 2A's bottom, and feed cylinder 2A's bottom is equipped with an at least discharge gate 2E, conveyer pipe 2C corresponds feed cylinder 2A's discharge gate 2E setting, it has feed inlet 2F and ejection of compact post 2G to go out work or material rest 2D, and feed cylinder 2A's discharge gate 2E is connected to conveyer pipe 2C's one end, and work or material rest 2D's feed inlet 2F is connected to conveyer pipe 2C's the other end, ejection of compact post 2G is hollow structure and intercommunication feed inlet 2F, goes out the fixed setting of work or material rest 2D on the top surface of well clamp plate 1B of frame, well clamp plate 1B corresponds ejection of compact post 2G of play work or material rest 2D and is provided with the through-hole of having a perfect understanding well clamp plate 1B upper and lower extreme.

Discharging mechanism 3 sets up on holding down plate 1C, including push rod 3A and the actuating mechanism 3B that corresponds ejection of compact post 2G setting of play work or material rest 2D, push rod 3A corresponds the through-hole setting of well clamp plate 1B, and actuating mechanism 3B drive push rod 3A reciprocates, and the through-hole that passes well clamp plate 1B will be located the setting element 6 of ejection of compact post 2G and up release.

Pressure head 4 includes pressure head body 4A, installation department 4B and moving mechanism 4C, and pressure head body 4A sets up on moving mechanism 4C, and installation department 4B sets up in pressure head body 4A's bottom, and moving mechanism 4C sets up in top board 1A bottom surface of frame 1 to can remove between play work rest 2D and work piece 5.

The number of the positioning pieces 6 needing press mounting on the workpiece 5 is the same as the number of the mounting parts 4B on the pressure head 4, the number of the discharging columns 2G on the discharging frame 2D, the number of the push rods 3A on the discharging mechanism 3, the number of the conveying pipes 2C and the number of the discharging holes 2E of the charging barrel 2A. A plurality of locating part 6 pressure equipment positions on the work piece 5 and a plurality of installation department 4B positions, a plurality of push rod 3A distribution positions of discharge mechanism 3 that distribute on the pressure head 4 and a plurality of ejection of compact post 2G distribution positions of ejection of compact frame 2D are corresponding, so set up the degree of accuracy that can ensure locating part 6 pressure equipment when work piece 5.

Frame 1 still includes upper guide arm 1D and lower guide arm 1E, and upper guide arm 1D sets up between the top surface of well clamp plate 1B and upper press plate 1A, and upper press plate 1A can slide from top to bottom along the guide arm, and lower guide arm 1E sets up between the bottom surface of well clamp plate 1B and lower clamp plate 1C, work piece 5 sets up the top surface at well clamp plate 1B with play work rest 2D interval, the moving mechanism 4C of pressure head 4 is including can be in the gliding slide 4D of upper press plate 1A bottom surface and the gliding motor of drive slide 4D (not shown in the figure), and after the installation department 4B of pressure head 4 adorned setting element 6, the slide 4D of motor drive head 4 slides in the bottom surface of upper press plate 1A. The moving mechanism 4C of the ram 4 may be a robot.

Feed mechanism 2's feed cylinder 2A is higher than play work or material rest 2D, makes conveyer pipe 2C be the slope setting, makes things convenient for conveyer pipe 2C to convey the feed inlet 2F that goes out work or material rest 2A accessible sets up the bottom support and erects feed cylinder 2A high, perhaps sets up the mode that hangs that hanging portion 2N makes feed cylinder 2A hang the eminence through hanging in one side of feed cylinder 2A as shown in fig. 2 to 9.

The bottom of feed cylinder 2A sets up a plurality of discharge gates 2E, agitator 2B sets up the bottom position in feed cylinder 2A, agitator 2B is equipped with the guide hole 2H that an axial link up at least, the guide hole 2H preferred can be provided with a plurality ofly, a plurality of guide holes 2H are along the equidistant interval arrangement of agitator 2B axial, when agitator 2B is rotatory to certain phase place, guide hole 2H can be relative with the discharge gate 2E of feed cylinder 2A bottom, make setting element 6 in the guide hole 2H fall into in the discharge gate 2E, agitator 2B's rotary power can be the manpower, the motor or produce some air supplies etc. of line. In for the convenience of setting element 6 gets into guide hole 2H, agitator 2B corresponds direction of rotation one side of each guide hole 2H and is equipped with the guide section 2I that an slope set up, and one side of guide hole 2H and guide section 2I is equipped with a retaining ring 2J that is higher than guide hole 2H, and when agitator 2B was rotatory, setting element 6 got into to guide hole 2H from guide section 2I in, under retaining ring 2J's backstop effect, avoided being located the rotatory power that makes of positioning element 6 in guide hole 2H by agitator 2B to throw away guide hole 2H.

Conveyer pipe 2C includes input 2K, linkage segment 2L and output 2M, input K is in the same place with feed cylinder 2A's discharge gate 2E grafting cooperation, input 2K's the other end links together with linkage segment 2L's top, the relative linkage segment of input 2K upwards buckles and connects feed cylinder 2A, make input 2K and linkage segment 2L's junction form first kink, linkage segment 2L is the slope setting, linkage segment 2L's bottom links together with output 2M's top, linkage segment 2L forms the second kink with output 2M, the relative linkage segment 2L of output 2M buckles down, output 2M's bottom and play work or material rest 2D grafting cooperation are in the same place, set up first kink and second kink and can make conveyer pipe 2C both can realize with feed cylinder 2A and play work or material rest 2D's connection, also can realize the transport of locating piece 6 in conveyer pipe 2C. To ensure a smooth transport of the positioning element 6 within the transport pipe 2C, the inner diameter of the transport pipe 2C is typically set to 1-2 times the outer diameter of the positioning element 6. In order to observe the remaining situation of the positioning member 6 in the delivery pipe 2C at any time, the delivery pipe 2C is usually made of a transparent material partially or entirely.

Go out work or material rest 2D and have ejection of compact support 2O, ejection of compact support 2O's periphery is equipped with the feeding that corresponds feed cylinder 2A discharge gate 2E quantity and connects 2P, and the feeding connects 2P and is equipped with feed inlet 2F, each feeding connect 2P intercommunication a discharge column 2G, a plurality of discharge columns 2G are vertical equidistant interval and set up on ejection of compact support 2O, and the many push rods 3A of the discharge mechanism 3 of being convenient for are up ejecting in with setting element 6 follow discharge column 2G. In order to ensure that only one positioning element 6 flows into the discharging column 2G from the feeding connector 2P at each time, when the push rod 3A of the discharging mechanism 3 is not ejected upwards, the top end of the push rod 3A is flush with the lowest height of the feeding connector 2P. Get into the setting element 6 in the ejection of compact post 2G for better control, the one end that the feeding connects 2P and conveyer pipe 2C is the great domatic 2Q of range, domatic 2Q's bottom to ejection of compact post 2G forms plane 2R, domatic 2Q is excessive with plane 2R circular arc, setting element 6 carries to the feed inlet 2F back that the feeding connects 2P from conveyer pipe 3C, flow in plane 2R and slow down the back, setting element 6 of foremost flows in to the ejection of compact post 2G on push rod 3A top. In order to facilitate observing the condition of the residual materials in the discharge rack 2D at any time, the partial or whole discharge rack 2D adopts transparent materials.

Installation department 4B of pressure head 4 is equipped with the hole 4E that is used for placing magnet, magnet inlays admittedly and is used for adsorbing setting element 6 in hole 4E, the junction of terminal surface forms the setting element of arc type under hole 4E and installation department 4B places district 4F, in order to fix a position setting element 6, the protruding a plurality of spacing card ramparts 4G that are equidistant interval setting that are equipped with of lower extreme face periphery of installation department 4B, and a plurality of spacing card ramparts 4G's inner wall is inclined plane 4H, the protruding height that stretches out terminal surface down of a plurality of spacing card ramparts 4G and the suppression height on inclined plane are relevant with setting element 6, can design several heads according to actual suppression height and change, ensure that the ball hole diameter shrinkage of work piece 5 is controllable under the certain suppression depth, and then guarantee the height that exposes of setting element 6.

The invention also provides a method for pressing the positioning piece by using the automatic positioning piece pressing device, which comprises the following steps:

step A: placing a plurality of positioning members 6 in the barrel 2A;

and B: the stirrer 2B rotates to guide the positioning piece 6 into the material guide hole 2H, and when the material guide hole 2H corresponds to the material outlet 2E of the charging barrel 2A, the positioning piece 6 falls into the material outlet 2E of the charging barrel 2A from the material guide hole 2H and is conveyed to the material inlet 2F of the material outlet frame 2D through the conveying pipe 2C;

and C: the positioning piece 6 positioned at the front end of the feed inlet 2F enters the discharge column 2G;

step D: a push rod 3A of the discharging mechanism 3 jacks up the positioning piece 6 from the positioning column 2G to a mounting part 4B of a pressing head 4 of the positioning piece 6, so that a magnet of the mounting part 4B adsorbs the positioning piece 6;

and E, step E: the moving mechanism 4C of the pressure head 4 drives the pressure head 4 and the positioning piece 6 thereon to move to the upper part of the workpiece 5;

step F: the upper pressure plate 1A drives the pressure head 4 to move downwards along the upper guide rod 1D, and the positioning piece 6 on the installation part 4B is pressed into a ball hole of the workpiece 5, so that the positioning piece 6 is pressed;

step G: the upper pressing plate 1A drives the pressing head 4 to move upwards to a preset position along the upper guide rod 1D again, and the moving mechanism 4C of the pressing head 4 drives the pressing head 4 to return to the position above the discharging mechanism 3;

step H: taking down the workpiece 5 with the positioning piece 6, and replacing the workpiece 5 to be loaded to the workpiece mounting position of the middle pressing plate 1B;

and repeating the steps B to H.

The above embodiments are only for illustrating the technical idea of the present invention, and the technical idea of the present invention is not limited thereto, and any modifications made on the basis of the technical solution according to the technical idea of the present invention fall within the protective scope of the present invention.

Claims (10)

1. The utility model provides an automatic pressure equipment device of setting element which characterized in that: comprises a frame, an automatic feeding mechanism, a discharging mechanism and a pressure head; the positioning piece is a steel ball;

the rack comprises an upper pressing plate, a middle pressing plate and a lower pressing plate which are arranged at intervals, and the workpiece is fixedly arranged on the top surface of the middle pressing plate;

the automatic feeding mechanism comprises a charging barrel, a stirrer, a conveying pipe and a discharging frame, wherein the stirrer is arranged at the bottom in the charging barrel, and the bottom of the charging barrel is provided with at least one discharging hole; the conveying pipe is arranged corresponding to the discharge hole of the material barrel, the discharging frame is provided with a feed inlet and a discharging column, one end of the conveying pipe is connected with the discharge hole of the material barrel, the other end of the conveying pipe is connected with the feed inlet of the discharging frame, the discharging column is of a hollow structure and is communicated with the feed inlet, the discharging frame is fixedly arranged on the top surface of a middle pressing plate of the rack, and a through hole penetrating through the upper end and the lower end of the middle pressing plate is arranged on the discharging column of the middle pressing plate corresponding to the discharging frame;

the discharging mechanism is arranged on the lower pressing plate and comprises a push rod and a driving mechanism, the push rod and the driving mechanism are arranged corresponding to the discharging column of the discharging frame, and the driving mechanism drives the push rod to move up and down and penetrate through the through hole of the middle pressing plate to push out the positioning piece positioned in the discharging column upwards;

the pressure head comprises a pressure head body, an installation part and a moving mechanism, the installation part is arranged at the bottom of the pressure head body, and the moving mechanism is arranged on the bottom surface of an upper pressure plate of the rack and moves between the discharge frame and the workpiece.

2. The automatic press-fitting device for positioning pieces as claimed in claim 1, wherein: the number of the positioning pieces needing press mounting on the workpiece is the same as the number of the mounting parts on the pressure head, the number of the discharging columns on the discharging frame, the number of push rods on the discharging mechanism and the number of the discharge holes of the conveying pipe and the charging barrel; the ball holes for installing the positioning pieces on the workpiece correspond to a plurality of installation parts distributed on the pressure head, a plurality of push rod distribution positions of the discharging mechanism and a plurality of discharging columns distribution positions of the discharging frame.

3. The automatic press-fitting device for positioning members as claimed in claim 1 or 2, wherein: the machine frame further comprises an upper guide rod and a lower guide rod, the upper guide rod is arranged between the top surface of the middle press plate and the upper press plate, the upper press plate can slide up and down along the guide rod, the lower guide rod is arranged between the bottom surface of the middle press plate and the lower press plate, and the workpiece and the discharge frame are arranged on the top surface of the middle press plate at intervals.

4. The automatic press-fitting device for positioning members as claimed in claim 1, wherein: the bottom of feed cylinder sets up a plurality of discharge gates, the agitator sets up the bottom position in the feed cylinder, and the agitator is equipped with a plurality of guide holes that the axial link up, and a plurality of guide holes are arranged along agitator axial equidistant interval.

5. The automatic press-fitting device for positioning elements as claimed in claim 4, wherein: the stirrer is provided with a guide section which is obliquely arranged on one side corresponding to the rotating direction of each guide hole, and a retainer ring which is higher than the guide holes is arranged on one side of each guide hole and the guide section.

6. The automatic press-fitting device for positioning members as claimed in claim 1, wherein: go out the work or material rest and have ejection of compact support, ejection of compact support's periphery is equipped with the feeding that corresponds feed cylinder discharge gate quantity and connects, and the feeding connects and is equipped with a feed inlet, each feeding connect a intercommunication ejection of compact post, a plurality of ejection of compact posts are vertical equidistant interval and set up on ejection of compact support.

7. The automatic press-fitting device for positioning members as claimed in claim 6, wherein: when the push rod of the discharging mechanism is not ejected upwards, the top end of the push rod is flush with the lowest height of the feeding interface.

8. The automatic press-fitting device for positioning elements according to claim 6, wherein: the feeding connects and be great domatic with duct connections's one end for range, forms the plane between domatic bottom to the ejection of compact post, and domatic and plane circular arc are excessive, and the setting element is carried to the feed inlet that the feeding connects after from the conveyer pipe, and the back is slowed down to the inflow plane, and the setting element of foremost flows in to the ejection of compact post on push rod top.

9. The automatic press-fitting device for positioning pieces as claimed in claim 1, wherein: the installation department of pressure head is equipped with the hole that is used for placing magnet, and magnet inlays admittedly at the hole, and the junction of hole and installation department lower extreme face forms the setting element of arc type and places the district, and the lower extreme off-plate week of installation department is protruding to be equipped with a plurality of spacing block walls that are equidistant interval setting, and the inner wall of a plurality of spacing block walls is the inclined plane.

10. A spacer press-fitting method using the automatic spacer press-fitting device according to claim 1, characterized by comprising the steps of:

step A: a plurality of positioning pieces are placed in the charging barrel;

and B: the stirrer rotates to enable the positioning piece to move and fall into the discharge hole of the charging barrel, and the positioning piece is conveyed to the feed hole of the discharge frame through the conveying pipe;

and C: the positioning piece positioned at the front end of the feeding hole enters the discharging column;

step D: a push rod of the discharging mechanism jacks up the positioning piece from the positioning column to the mounting part of the positioning piece pressing head;

step E: the moving mechanism of the pressure head drives the pressure head and the positioning piece on the pressure head to move to the upper part of the workpiece;

step F: the upper pressure plate drives the pressure head to press down to press the positioning piece on the installation part into the ball hole of the workpiece, and pressing is completed.

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