CN214926246U

CN214926246U - Die casting die with prevent pressing and swell hole

Info

Publication number: CN214926246U
Application number: CN202121697672.4U
Authority: CN
Inventors: 李玉鑫; 刘华兰; 董凤虎
Original assignee: Suzhou Ming Li Ya Zheng Intelligent Technology Co ltd
Current assignee: Suzhou Ming Li Ya Zheng Intelligent Technology Co ltd
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2021-11-30
Anticipated expiration: 2031-07-26

Abstract

The utility model discloses a die casting die with prevent pressing and swell hole, including the die casting die body, the die casting die body includes front mould and back mould, and the mould cooperation that opens and shuts is done with the back mould to the front mould, the equal fixedly connected with in both sides of front mould presses the seat, the bottom fixedly connected with bottom of back mould is the box-shaped seat that the opening set up, two buffer gear of fixedly connected with and front mould matched with on the box-shaped seat are provided with on the box-shaped seat and are adjusted pressure mechanism with two buffer gear matched with accuracies, buffer gear is including fixing two rectangular pipes at box-shaped seat top, and sliding sleeve is equipped with the rectangle pole in the rectangular pipe. The utility model relates to a rationally, be convenient for cushion the front mould when the compound die, reduce the hard power of colliding when the compound die to reduce the damage risk, and the personnel of being convenient for further improve the buffering anticollision effect between front mould and the back mould according to the quick accurate adjustment buffering dynamics of actual need, satisfy the user demand, be favorable to the use.

Description

Die casting die with prevent pressing and swell hole

Technical Field

The utility model relates to a die casting die technical field especially relates to a die casting die with prevent pressing and swell hole.

Background

In our daily life, metal workpieces are often seen; because the workpiece is made of metal, the workpiece is mostly formed by die-casting by using a die-casting die, and for forming the workpiece with an inner hole, because a convex core of a front die and a concave cavity of a rear die of the existing die-casting die are in interference fit, the defect of hard-to-hard collision is generated at the position of a parting line in the process of closing the front die and the rear die, and the convex core of the front die is flattened due to the hard-to-hard collision, so that the inner hole of the workpiece is swelled outwards;

to solve the problem, in the prior art, No. CN210010447U discloses a die casting mold with anti-swelling hole, which comprises a front mold and a rear mold, wherein the front mold has a front convex core protruding toward the rear mold, the rear mold has a concave cavity and a rear convex core, wherein the die casting mold further comprises an anti-swelling hole structure, the anti-swelling hole structure comprises an avoiding concave ring opened at the side wall of the front convex core and surrounding the front convex core for a circle, the avoiding concave ring penetrates through the end surface of the front convex core along the direction parallel to the mold opening direction, the avoiding concave ring divides the front convex core into a first convex core along the direction close to the rear mold and a second convex core abutted against the rear convex core during mold closing, the avoiding concave ring is inwardly offset relative to the outer side wall of the first convex core, the offset distance range of the avoiding concave ring relative to the outer side wall of the first convex core is 0.02-0.6 mm, and the die casting mold can solve the problem of die drawing caused by swelling of the inner hole, improve the die-casting quality, improve die-casting efficiency, reduce the mould maintenance rate.

The die-casting die with the anti-swelling hole disclosed by the patent still has some defects, and the rear die is lack of the function of buffering the front die during die assembly, so that the rear die plate and the front die are easy to have a large hard collision phenomenon and are easy to collide and damage during die assembly; although the mode that exists simply to set up the elastic component between its two and be used for the buffering among the prior art, but mostly can not be according to the accurate adjustment buffering dynamics of actual need, if the elastic component is softer, then can not effectively play the effect of buffering, can not satisfy the user demand, improve to this phenomenon, therefore we have proposed a die casting die with prevent pressing and swell hole for solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a die-casting die with an anti-swelling hole.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a die-casting die with an anti-swelling hole comprises a die-casting die body, wherein the die-casting die body comprises a front die and a rear die, the front die and the rear die are matched in a die opening and closing mode, two sides of the front die are fixedly connected with a pressing seat, the bottom of the rear die is fixedly connected with a box-shaped seat with an opening, the box-shaped seat is fixedly connected with two buffering mechanisms matched with the front die, and the box-shaped seat is provided with an accurate pressure regulating mechanism matched with the two buffering mechanisms;

buffer gear is including fixing two rectangular pipes at box-shaped seat top, and the sliding sleeve is equipped with the rectangular rod in the rectangular pipe, the top of rectangular rod extend to the rectangular pipe's that corresponds top and with the bottom swing joint who presses the seat, swing joint has the pressure regulating seat between the front side inner wall of rectangular pipe and the rear side inner wall, and fixedly connected with is in compression state's buffer spring between the top of pressure regulating seat and the bottom of the rectangular rod that corresponds.

Preferably, the precise pressure regulating mechanism comprises two screw rods rotatably mounted at the top of the box-shaped seat, the screw rods are located in corresponding rectangular tubes, the pressure regulating seat is sleeved on the corresponding screw rods in a threaded manner, rectangular holes are formed in the inner walls of the two rectangular tubes at the sides close to each other, two guide rods are fixedly connected between the inner walls of the tops and the inner walls of the bottoms of the rectangular holes, guide sleeves are movably sleeved on the guide rods, one sides of the guide sleeves close to the corresponding pressure regulating seats are fixedly connected with the pressure regulating seats, the bottom ends of the screw rods extend into the box-shaped seat, chain wheels located in the box-shaped seat are welded and sleeved on the screw rods, the same chain is in transmission connection with the two chain wheels, the bottom ends of the screw rods located on the right side in the two screw rods are fixedly connected with knobs, the right sides of the knobs extend out of the box-shaped seat, pointers are fixedly connected to the sides far away from each other of the two pressure regulating seats, and extend out of the corresponding rectangular tubes respectively, the equal fixedly connected with scale in one side that two rectangular tubes kept away from each other, the pointer cooperatees with the scale that corresponds.

Preferably, two rectangular pipes are all fixedly connected with stoppers on the inner wall of one side of keeping away from each other, and the spacing groove has all been seted up to one side that two rectangular poles kept away from each other, spacing groove and the stopper sliding connection that corresponds, the top of stopper and the top inner wall movable contact of the spacing groove that corresponds.

Preferably, the top of the pressure regulating seat is provided with a threaded hole, and the threaded hole is in threaded connection with the corresponding screw.

Preferably, two balls are nested on the inner walls of the four sides of the guide sleeve, the guide rods are located between the eight corresponding balls, and the balls are in rolling contact with the outer sides of the corresponding guide rods.

Preferably, the inner walls of the two rectangular pipes at the sides far away from each other are provided with rectangular through holes, and the pointers are located in the corresponding rectangular through holes and are not in contact with the inner walls of the rectangular through holes.

Preferably, two round holes are formed in the inner wall of the top of the box-shaped seat, a bearing is fixedly sleeved in each round hole, and an inner ring of each bearing is welded and sleeved with the outer side of the corresponding screw rod.

Preferably, an exit hole with an opening at the bottom is formed in the inner wall of the right side of the box-shaped seat, the knob is located in the exit hole and does not contact with the inner wall of the exit hole, and a plurality of handle rods are fixedly connected to the outer side of the knob in an annular shape at equal intervals.

Compared with the prior art, the beneficial effects of the utility model are that:

through the matching of the rear die, the front die, the box-shaped seat, the pressing seats, the rectangular tubes, the rectangular rods, the pressure regulating seats, the buffer springs, the screw rods, the rectangular holes, the guide rods, the guide sleeves, the chain wheels, the chains, the knobs, the balls and the pointers with the scale, when the front die moves up and separates the dies, the two pressing seats are driven to upwards gradually release the extrusion force on the two rectangular rods, at the moment, the buffer springs in a compressed state drive the corresponding rectangular rods to upwards move, when the dies are closed, the front die can drive the two pressing seats to downwards extrude the two rectangular rods, and under the extrusion force, the rectangular rods slide downwards in the corresponding rectangular tubes and compress the buffer springs, so that the effect of buffering the front die can be achieved under the elasticity of the buffer springs, and the hard collision force during die closing is reduced;

when the adjustment buffering dynamics, the forward rotation knob drives the screw rod on right side and rotates, the screw rod on right side drives left screw rod through two sprockets and chain cooperation and rotates, two screw rod rotations can drive two pressure regulating seat rebound, the pressure regulating seat drives the ball at the outside of guide bar through the uide bushing that corresponds and upwards rolls, the pressure regulating seat upwards compresses the compression spring to corresponding, can adjust buffer spring's initial compression degree, realize the effect of adjustment buffering dynamics, wherein still drive the pointer rebound that corresponds when pressure regulating seat rebound, under the cooperation of pointer and scale, the personnel of being convenient for adjust the buffering dynamics according to actual need fast and accurately.

The utility model relates to a rationally, be convenient for cushion the front mould when the compound die, reduce the hard power of colliding when the compound die to reduce the damage risk, and the personnel of being convenient for further improve the buffering anticollision effect between front mould and the back mould according to the quick accurate adjustment buffering dynamics of actual need, satisfy the user demand, be favorable to the use.

Drawings

Fig. 1 is a schematic cross-sectional structural view of a die casting mold with an anti-bulge hole according to the present invention;

fig. 2 is an enlarged schematic view of a portion a in fig. 1.

In the figure: 100 rear moulds, 101 front moulds, 1 box-shaped base, 2 pressing bases, 3 rectangular pipes, 4 rectangular rods, 5 pressure regulating bases, 6 buffer springs, 7 screw rods, 8 rectangular holes, 9 guide rods, 10 guide sleeves, 11 chain wheels, 12 chains, 13 knobs, 14 balls, 15 pointers and 16 graduated scales.

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. 1-2, the die-casting die with the anti-swelling hole comprises a die-casting die body, wherein the die-casting die body comprises a front die 101 and a rear die 100, the front die 101 and the rear die 100 are in open-close die fit, two sides of the front die 101 are fixedly connected with pressure bases 2, the bottom of the rear die 100 is fixedly connected with a box-shaped base 1 with an opening at the bottom, two buffer mechanisms matched with the front die 101 are fixedly connected to the box-shaped base 1, and an accurate pressure regulating mechanism matched with the two buffer mechanisms is arranged on the box-shaped base 1;

the buffer mechanism comprises two rectangular tubes 3 fixed at the top of the box-shaped seat 1, rectangular rods 4 are sleeved in the rectangular tubes 3 in a sliding mode, the top ends of the rectangular rods 4 extend to the upper side of the corresponding rectangular tubes 3 and are in movable contact with the bottoms of the pressure seats 2, pressure regulating seats 5 are in movable contact between the inner walls of the front sides and the inner walls of the rear sides of the rectangular tubes 3, and buffer springs 6 in a compressed state are fixedly connected between the tops of the pressure regulating seats 5 and the bottom ends of the corresponding rectangular rods 4;

the accurate pressure regulating mechanism comprises two screw rods 7 rotatably arranged at the top of a box-shaped seat 1, the screw rods 7 are positioned in corresponding rectangular tubes 3, the pressure regulating seat 5 is in threaded sleeve connection with the corresponding screw rods 7, rectangular holes 8 are respectively formed in the inner walls of the two adjacent rectangular tubes 3, two guide rods 9 are fixedly connected between the inner walls of the top and the bottom of the rectangular holes 8, guide sleeves 10 are movably sleeved on the guide rods 9, one sides of the guide sleeves 10, which are adjacent to the corresponding pressure regulating seats 5, are fixedly connected with the pressure regulating seats 5, the bottom ends of the screw rods 7 extend into the box-shaped seat 1, chain wheels 11 positioned in the box-shaped seat 1 are welded on the screw rods 7, the two chain wheels 11 are in transmission connection with the same chain 12, the bottom ends of the screw rods 7 on the right side in the two screw rods 7 are fixedly connected with a knob 13, the right side of the knob 13 extends out of the box-shaped seat 1, pointers 15 are fixedly connected to the sides of the two pressure regulating seats 5, which are far away from each other, outside one side that two pointers 15 kept away from each other extended to the rectangular pipe 3 that corresponds respectively, the equal fixedly connected with scale 16 in one side that two rectangular pipes 3 kept away from each other, pointer 15 cooperateed with the scale 16 that corresponds, the utility model relates to a rationally, be convenient for cushion front mould 101 when the compound die, reduce the hard power of colliding during the compound die to reduce the damage risk, and the personnel of being convenient for adjust the buffering dynamics according to actual need fast and accurately, further improve the buffering anticollision effect between front mould 101 and the back mould 100, satisfy the user demand, be favorable to using.

In the utility model, the inner wall of one side of two rectangular tubes 3 far away from each other is fixedly connected with a limiting block, one side of two rectangular rods 4 far away from each other is provided with a limiting groove, the limiting groove is connected with a corresponding limiting block in a sliding way, the top of the limiting block is movably contacted with the inner wall of the top of the corresponding limiting groove, the top of the pressure regulating seat 5 is provided with a threaded hole which is connected with a corresponding screw 7 in a threaded way, the inner walls of four sides of a guide sleeve 10 are respectively nested with two balls 14, a guide rod 9 is positioned between the corresponding eight balls 14, the balls 14 are contacted with the outer side of the corresponding guide rod 9 in a rolling way, the inner wall of one side of two rectangular tubes 3 far away from each other is provided with rectangular perforations, a pointer 15 is positioned in the corresponding rectangular perforations and is not contacted with the inner wall of the rectangular perforations, the inner wall of the top of a box-shaped seat 1 is provided with two round holes, and a bearing is fixedly sleeved in the round holes, the inner circle of bearing and the outside welding suit of the screw rod 7 that corresponds, set up the bottom on the right side inner wall of box-shaped seat 1 and be the hole of wearing out that the opening set up, knob 13 is located the hole of wearing out and with the inner wall contactless of wearing out the hole, knob 13's the outside is a plurality of handle bars of equidistant fixedly connected with of annular, the utility model relates to a rationally, be convenient for cushion front mould 101 when the compound die, reduce the hard power of colliding when the compound die to reduce the damage risk, and the personnel of being convenient for adjust the buffering dynamics according to actual need fast and accurately, further improve the buffering anticollision effect between front mould 101 and the back mould 100, satisfy the user demand, be favorable to using.

The working principle is as follows: when the device is used, the top of the rear die 100 is in a die closing state when contacting with the bottom of the front die 101, when the front die 101 moves up and separates the dies, the front die 101 drives the two pressure bases 2 to move upwards and gradually release the extrusion force on the two rectangular rods 4, the elastic force of the buffer spring 6 in a compressed state drives the corresponding rectangular rods 4 to move upwards, when the front die 101 is in downward contact with the rear die 100, firstly the front die 101 drives the two pressure bases 2 to extrude the two rectangular rods 4 downwards, and under the extrusion force, the rectangular rods 4 slide downwards in the corresponding rectangular tubes 3 and compress the buffer spring 6, under the elastic force of the buffer spring 6, the effect of buffering the front die 101 can be achieved, the purpose of buffering and unloading force of the front die is achieved, and the hard collision force during die closing is reduced, so that the risk of damage is reduced;

when the buffering force is required to be adjusted according to actual needs, the knob 13 is rotated in the forward direction, the knob 13 drives the right screw 7 to rotate, the right screw 7 drives the right chain wheel 11 to rotate, the right chain wheel 11 drives the left chain wheel 11 to rotate through the chain 12, the left chain wheel 11 drives the left screw 7 to rotate, under the action of the threaded hole formed in the pressure regulating seat 5, the two screws 7 can drive the two pressure regulating seats 5 to move upwards through rotation, the pressure regulating seat 5 drives the corresponding two guide sleeves 10 to move upwards, the guide sleeves 10 drive the corresponding balls 14 to roll upwards on the outer sides of the guide rods 9, meanwhile, the pressure regulating seat 5 compresses the corresponding compression springs 6 upwards, the initial compression degree of the buffer springs 6 can be adjusted, the upward tightening elastic force of the corresponding rectangular rods 4 can be adjusted, the purpose of adjusting the buffering force is achieved, and the corresponding pointers 15 are also driven to move upwards when the pressure regulating seat 5 moves upwards, at this moment, the pointer 15 indicates that the numerical value on the corresponding graduated scale 16 changes, and personnel can indicate the elasticity of the compression spring 6 when different positions through measuring the pointer 15 in advance, so that under the cooperation of the pointer 15 and the graduated scale 16, the personnel of being convenient for can adjust the buffering dynamics according to actual needs fast and accurately, and the buffering anti-collision effect between the front mold 101 and the rear mold 100 is improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The die-casting die with the anti-swelling hole comprises a die-casting die body, wherein the die-casting die body comprises a front die (101) and a rear die (100), and the front die (101) and the rear die (100) are matched in an opening and closing mode;

buffer gear is including fixing two rectangular tubes (3) at box-shaped seat (1) top, and the sliding sleeve is equipped with rectangular rod (4) in rectangular tube (3), and the top of rectangular rod (4) extends to the top of rectangular tube (3) that corresponds and with the bottom swing contact who presses seat (2), swing contact has pressure regulating seat (5) between the front side inner wall of rectangular tube (3) and the rear side inner wall, and fixedly connected with is in compression state's buffer spring (6) between the top of pressure regulating seat (5) and the bottom of rectangular rod (4) that corresponds.

2. The die-casting die with the anti-swelling hole is characterized in that the precise pressure regulating mechanism comprises two screw rods (7) rotatably mounted at the top of the box-shaped seat (1), the screw rods (7) are positioned in corresponding rectangular tubes (3), the pressure regulating seat (5) is sleeved on the corresponding screw rods (7) in a threaded manner, the inner walls of one sides, close to each other, of the two rectangular tubes (3) are respectively provided with a rectangular hole (8), two guide rods (9) are fixedly connected between the inner walls of the top and the bottom of each rectangular hole (8), each guide rod (9) is movably sleeved with a guide sleeve (10), one side, close to the corresponding pressure regulating seat (5), of each guide sleeve (10) is fixedly connected with the pressure regulating seat (5), the bottom end of each screw rod (7) extends into the box-shaped seat (1), and a chain wheel (11) positioned in the box-shaped seat (1) is welded and sleeved on each screw rod (7), transmission connection has same chain (12) on two sprocket (11), bottom fixedly connected with knob (13) of screw rod (7) that lie in the right side in two screw rods (7), and the right side of knob (13) extends to outside box-shaped seat (1), equal fixedly connected with pointer (15) in one side of keeping away from each other in two pressure regulating seats (5), outside one side that two pointers (15) kept away from each other extended to corresponding rectangular pipe (3) respectively, equal fixedly connected with scale (16) in one side that two rectangular pipe (3) kept away from each other, pointer (15) cooperate with scale (16) that correspond.

3. The die-casting die with the anti-bulge hole is characterized in that limiting blocks are fixedly connected to inner walls of one sides, away from each other, of the two rectangular tubes (3), limiting grooves are formed in one sides, away from each other, of the two rectangular rods (4), the limiting grooves are connected with the corresponding limiting blocks in a sliding mode, and tops of the limiting blocks are in movable contact with inner walls of tops of the corresponding limiting grooves.

4. The die-casting die with the anti-bulge hole is characterized in that a threaded hole is formed in the top of the pressure regulating seat (5) and is in threaded connection with a corresponding screw rod (7).

5. The die-casting die with the anti-bulge hole is characterized in that two balls (14) are nested on the inner walls of the four sides of the guide sleeve (10), the guide rod (9) is located between the eight corresponding balls (14), and the balls (14) are in rolling contact with the outer side of the corresponding guide rod (9).

6. The die-casting die with the anti-bulge hole is characterized in that the inner walls of the two rectangular tubes (3) at the sides far away from each other are respectively provided with a rectangular through hole, and the pointer (15) is positioned in the corresponding rectangular through hole and is not in contact with the inner wall of the rectangular through hole.

7. The die-casting die with the anti-swelling hole is characterized in that two round holes are formed in the inner wall of the top of the box-shaped base (1), a bearing is fixedly sleeved in each round hole, and the inner ring of each bearing is welded and sleeved with the outer side of the corresponding screw (7).

8. The die-casting die with the bulge-proof hole is characterized in that a penetrating hole with an opening at the bottom is formed in the inner wall of the right side of the box-shaped seat (1), the knob (13) is located in the penetrating hole and is not in contact with the inner wall of the penetrating hole, and a plurality of handle rods are fixedly connected to the outer side of the knob (13) in an annular shape at equal intervals.