External thread fixing type positioning guide pin for mold protection
Technical Field
The utility model relates to a positive round pin technical field is led in the location, specifically is a positive round pin is led in fixed type location of external screw thread for mould protection.
Background
The mould is a variety of moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production, the pilot pin is an important component of the mould, the pilot pin is a pin-shaped metal part which extends into a hole of a workpiece and guides the position of the pilot pin in a female mould, the pilot pin is generally made of high-hardness materials such as high-speed steel, tungsten steel, hard alloy and the like and is used for guiding the position of the workpiece so as to ensure accurate blanking of the workpiece, the pilot pin is similar to a gun head of a red tassel gun in appearance, and the pilot pin is a common mould accessory and has very high precision.
Chinese patent publication is CN210450617U, and the grant announcement day is 2020, 05, a positive round pin is led to stamping die location part, including the mould body, processing communicating king hole, fixed orifices and guiding hole in proper order on the mould body, insert in king hole and the fixed orifices and lead positive round pin body, lead the both sides of positive round pin body bottom and process first through-hole and second through-hole respectively, connecting tube between first through-hole and the second through-hole, connect the breather pipe on the middle-end of pipe, the other end of breather pipe passes the guiding hole and extends to the outside of mould body, and the connecting tube overlaps has the holding ring. This stamping die fixes a position part and leads positive round pin, and the air supply ventilates to the breather pipe in, then the pipe with gas send first through-hole and second through-hole in, perhaps from bleeding, the closing plate is when receiving the change of gas pressure, the closing plate moves left or right to also can expand or contract the cardboard to both sides, expand the back cardboard card on the fixed orifices, realize the rigidity of mould body.
The above prior art solutions have the following drawbacks: this location part is led and is just sold can only play spacing effect on the vertical face, can make when receiving a plurality of directions effort lead the round pin and rock in the fixed orifices, has reduced the stability of leading just round pin, can cause certain influence to the positioning accuracy of work piece, plays the guard action to the mould that can not be fine.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a positive round pin is led in fixed type location of external screw thread for mould protection to it can only play spacing effect on the vertical face to provide in solving above-mentioned background art, can make when receiving a plurality of directions effort lead the round pin and rock in the fixed orifices, has reduced and has led the stability of just selling, can cause certain influence to the positioning accuracy of work piece, can not be fine plays the guard action's problem to the mould.
In order to achieve the above object, the utility model provides a following technical scheme: an external thread fixing type positioning guide pin for protecting a mold comprises a mold main body;
the mounting cavity is arranged on the die main body, a positioning guide pin is arranged above the die main body, one end of the positioning guide pin extends into the mounting cavity, a mounting seat is arranged in the mounting cavity, a mounting bolt is arranged between the mounting seat and the die main body, and the mounting seat and the die main body form a fixed structure through the mounting bolt;
the thread groove is arranged on the outer wall of the positioning and guiding pin and the inner wall of the mounting seat, and the positioning and guiding pin is in threaded connection with the mounting seat;
the groove is formed in the lower end of the mounting seat, a spring part is arranged below the mounting seat, and two ends of the spring part are respectively attached to the die main body and the mounting seat.
Preferably, the mounting base is internally provided with a positioning column, the positioning column and the mounting base are arranged into an integral structure, the lower end of the positioning guide pin is provided with a positioning hole, and the positioning hole and the positioning column are correspondingly arranged.
Preferably, the contact position of the positioning guide pin and the die main body is provided with a rubber ring, the rubber ring is attached to the positioning guide pin and the die main body in a homogeneous phase, and the upper end face of the rubber ring and the upper end face of the die main body are arranged on the same horizontal plane.
Preferably, the inside of mould main part is provided with the cavity body, be provided with spacing hole on the outer wall of positive round pin is led in the location, spacing hole is provided with two, and just two spacing hole settings lead the both sides of positive round pin in the location, the inside of the cavity body sets up the gag lever post, and the gag lever post is provided with two, and two gag lever posts set up and lead the both sides of positive round pin in the location, the gag lever post corresponds the setting with spacing hole.
Preferably, the inside of the cavity body is provided with the gear, and the gear rotates with the mould main part to be connected, one side of mould main part is provided with the knob, and knob and gear connection structure as an organic whole, the knob rotates with the mould main part to be connected, the top and the below of gear all are provided with removes the frame, and remove the frame and pass through the screw connection with the gag lever post, be provided with the rack on removing the frame, and the rack with remove the frame and be connected structure as an organic whole, it is connected with gear engagement to remove the frame.
Preferably, the inside of the cavity body is provided with the spout, and the spout setting is in the mould main part, the top of gag lever post is provided with the slider, and slider and gag lever post pass through the screw connection, the one end of slider extends to the inside of spout, and slider and mould main part sliding connection.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a device is through the setting of thread groove and spring part, and the thread groove makes the location lead positive round pin can with the mount pad quick assembly disassembly, is convenient for the change of location lead positive round pin, and the spring part suitably cushions the effort when leading work piece atress, can play the effect of protection to the mould;
2. the utility model discloses a device passes through the setting of gear, carriage, gag lever post and spacing hole, and indirect drive carriage of rotary gear removes, leads positive pin junction state along with the removal that removes the frame changes the gag lever post and fixes a position, inserts spacing hole and can lead positive round pin to the location and play spacing effect, prevents to fix a position and leads positive round pin and drop from the mould.
Drawings
FIG. 1 is a front view structural diagram of the present invention;
fig. 2 is a cross-sectional view of the present invention;
FIG. 3 is a connecting structure diagram of the positioning guide pin and the mounting seat of the present invention;
FIG. 4 is a connection diagram of the movable frame and the mold main body according to the present invention;
fig. 5 is a cross-sectional view of the positioning guide pin and the mold body of the present invention.
In the figure: 1. a mold body; 2. positioning a pilot pin; 3. a rubber ring; 4. a knob; 5. a mounting cavity; 6. a cavity body; 7. a limiting rod; 8. a limiting hole; 9. a mounting seat; 10. a thread groove; 11. installing a bolt; 12. a groove; 13. a spring member; 14. a movable frame; 15. a gear; 16. A tooth row; 17. a slider; 18. a chute; 19. positioning holes; 20. and a positioning column.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-5, the present invention provides an embodiment: an external thread fixing type positioning guide pin for protecting a mould comprises a mould main body 1;
the installation cavity 5 is arranged on the die main body 1, the positioning and guiding pin 2 is arranged above the die main body 1, one end of the positioning and guiding pin 2 extends to the inside of the installation cavity 5, an installation seat 9 is arranged inside the installation cavity 5, an installation bolt 11 is arranged between the installation seat 9 and the die main body 1, and the installation seat 9 and the die main body 1 form a fixed structure through the installation bolt 11;
the thread groove 10 is arranged on the outer wall of the positioning and guiding pin 2 and the inner wall of the mounting seat 9, the positioning and guiding pin 2 is in threaded connection with the mounting seat 9, the positioning and guiding pin 2 can be quickly connected with the mounting seat 9 by means of the thread groove 10, and replacement of the positioning and guiding pin 2 is facilitated;
recess 12, its setting is at the lower extreme of mount pad 9, and the below of mount pad 9 is provided with spring part 13, and the both ends of spring part 13 laminate mutually with mould main part 1 and mount pad 9 respectively, and spring part 13 can play the cushioning effect when the guide work piece atress, plays the guard action to the mould.
Referring to fig. 2, a positioning post 20 is disposed inside the mounting base 9, the positioning post 20 and the mounting base 9 are integrated, a positioning hole 19 is disposed at a lower end of the positioning guide pin 2, the positioning hole 19 is disposed corresponding to the positioning post 20, and the positioning post 20 is inserted into the positioning hole 19 to ensure the mounting accuracy of the positioning guide pin 2.
Referring to fig. 1 and 2, a rubber ring 3 is disposed at a contact position of the positioning and guiding pin 2 and the mold body 1, the rubber ring 3 is attached to the positioning and guiding pin 2 and the mold body 1, an upper end surface of the rubber ring 3 and an upper end surface of the mold body 1 are disposed on the same horizontal plane, and a gap between the positioning and guiding pin 2 and the mold body 1 can be filled through the rubber ring 3 to maintain flatness of the end surfaces.
Referring to fig. 2 and 5, a cavity body 6 is arranged inside the mold main body 1, two limiting holes 8 are formed in the outer wall of the positioning guide pin 2, two limiting holes 8 are formed in the two limiting holes 8, the two limiting holes 8 are formed in the two sides of the positioning guide pin 2, limiting rods 7 are arranged inside the cavity body 6, the two limiting rods 7 are arranged on the limiting rods 7, the two limiting rods 7 are arranged on the two sides of the positioning guide pin 2, the limiting rods 7 and the limiting holes 8 are arranged correspondingly, the limiting rods 7 are inserted into the limiting holes 8 in an aligning mode, the positioning guide pin 2 can be limited by means of the limiting rods 7, and the positioning guide pin 2 is prevented from loosening and falling off from the mold in the using process.
Referring to fig. 4 and 5, a gear 15 is disposed inside the cavity 6, the gear 15 is rotatably connected to the mold main body 1, a knob 4 is disposed on one side of the mold main body 1, the knob 4 is connected to the gear 15 to form an integral structure, the knob 4 is rotatably connected to the mold main body 1, moving frames 14 are disposed above and below the gear 15, the moving frames 14 are connected to the limit rod 7 through screws, a rack 16 is disposed on the moving frame 14, the rack 16 is connected to the moving frames 14 to form an integral structure, the moving frames 14 are connected to the gear 15 in a meshing manner, the gear 15 is driven to rotate by rotating the knob 4, the moving frame 14 is driven to move along with the rotation of the gear 15, and then the connection state between the limit rod 7 and the positioning guide pin 2 is changed.
Referring to fig. 2, a sliding groove 18 is formed in the hollow cavity 6, the sliding groove 18 is formed in the mold main body 1, a sliding block 17 is arranged above the limiting rod 7, the sliding block 17 is connected with the limiting rod 7 through a screw, one end of the sliding block 17 extends into the sliding groove 18, the sliding block 17 is connected with the mold main body 1 in a sliding manner, and the sliding block 17 and the sliding groove 18 can guide the moving limiting rod 7.
The working principle is as follows: when the positioning guide pin is used, the threaded end of the positioning guide pin 2 is inserted into the mounting cavity 5 and is in threaded connection with the mounting seat 9, the knob 4 is rotated clockwise to drive the gear 15 to rotate, the two movable frames 14 are moved close to each other by the rotating gear 15, the limiting rod 7 is driven to move along with the movement of the movable frames 14, one end of the limiting rod 7 is inserted into the limiting hole 8 to limit the positioning guide pin 2, and the installed positioning guide pin 2 can be prevented from loosening and separating from a die; when the die machining is carried out, the spring piece 13 can play a certain buffering role on the traction workpiece, and then a certain protection effect can be achieved on the die. When the positioning guide pin 2 is replaced, the knob 4 is rotated anticlockwise to separate the limiting rod 7 from the positioning guide pin 2, and then the positioning guide pin 2 is taken down from the mounting seat 9.
Those not described in detail in this specification are within the skill of the art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.