CN223115636U

CN223115636U - A precise positioning device for mold processing

Info

Publication number: CN223115636U
Application number: CN202422316218.XU
Authority: CN
Inventors: 高佃亮; 王�华; 李冬冬
Original assignee: Dongying Wanlong Precision Casting Metal Co ltd
Current assignee: Dongying Wanlong Precision Casting Metal Co ltd
Priority date: 2024-09-23
Filing date: 2024-09-23
Publication date: 2025-07-18
Anticipated expiration: 2034-09-23

Abstract

The utility model belongs to the technical field of mold positioning, and particularly relates to a precise mold processing positioning device. The novel screw-nut pressing device comprises a base, wherein two groups of screw-nut assemblies are arranged on the base, each screw-nut assembly comprises trapezoidal screw rods, the two trapezoidal screw rods are staggered in a cross manner and are distributed vertically and independently, nuts are sleeved on the trapezoidal screw rods at intervals, a first pressing module is fixed at the top of each of the two nuts sleeved on the longitudinally arranged trapezoidal screw rods, the first pressing module comprises a first shell, a first pressing block is connected to one surface of the first shell facing the inner side through a first spring, a second pressing module is fixed at the top of each of the two nuts sleeved on the transversely arranged trapezoidal screw rods, the second pressing module comprises a second shell, and a second pressing block is connected to one surface of the second shell facing the inner side through a second spring. If the die is subjected to the action of external force in the die processing process, the nut is not directly pushed outwards, and the acting force is buffered and compensated through the first spring and the second spring.

Description

Accurate positioner of mould processing

Technical Field

The utility model belongs to the technical field of mold positioning, and particularly relates to a precise mold processing positioning device.

Background

A mold is a tool for manufacturing a part of a specific shape, and a material can be solidified or molded into a part of a desired shape by injecting a liquefied raw material into the mold or pressing a solid raw material into the mold. The mould is usually by last mould and lower mould composition, when using mould processing part, need to go on the location alignment to last mould and lower mould, and most moulds are according to mould size use locating pin and locating piece to fix a position, and this kind of locate mode is very accurate, but when changing the mould of using different size and dimension, corresponding needs change different setting elements, and the operation can be very troublesome, influences machining efficiency.

Disclosure of utility model

The utility model aims to provide a precise positioning device for die processing, which can buffer and compensate the acting force of a clamping position during die processing.

The die processing accurate positioning device comprises a base, wherein two groups of screw rod nut assemblies are arranged on the base, each screw rod nut assembly comprises a trapezoidal screw rod capable of rotating independently, the two trapezoidal screw rods are staggered in a cross manner and are distributed independently up and down, and nuts in threaded fit are sleeved on the trapezoidal screw rods on two sides of the staggered point at intervals;

The top of two nuts sleeved on the longitudinally arranged trapezoidal screw rod is fixedly provided with a first jacking module, the first jacking module comprises a first shell, one faces of the two first shells, which face towards the inner side, are connected with first jacking blocks through first springs, the first springs between the first shell and the first jacking blocks are longitudinally arranged, one ends of the first springs are connected with the first shell, and the other ends of the first springs are connected with the first jacking blocks;

the top of two nuts sleeved on the transversely arranged trapezoidal screw rod is fixedly provided with a second jacking module, the second jacking module comprises a second shell, one faces of the two second shells, which face towards the inner side, are connected with a second jacking block through second springs, the second springs between the second shell and the second jacking block are transversely arranged, one ends of the second springs are connected with the second shell, and the other ends of the second springs are connected with the second jacking block;

When the first spring and the second spring are in a compressed state, the first ejector block and the second ejector block respectively inwards abut against the die.

Through rotating two trapezoidal lead screws, the nut on two trapezoidal lead screws all moves to the inboard, drive first shell and second shell and move to the inboard respectively, and then drive first kicking block and second kicking block to inboard tight mould, press from both sides the mould tight at the inboard region of first tight module in top and the tight module in second, if receive the exogenic action in the mould course of working, can not directly promote the nut to the outside, but carry out a buffering and compensation to effort through first spring and second spring, and trapezoidal lead screw originally just has certain self-locking ability, and then make the nut be difficult for shifting, thereby the precision when having guaranteed the mould processing location.

Further, grooves are formed in the base corresponding to the trapezoidal screw rods, the trapezoidal screw rods are installed in the grooves, fixing seats are fixed at the end portions in the grooves, and the trapezoidal screw rods are in rotary fit connection with the fixing seats.

The rear end of the longitudinally arranged trapezoidal screw rod is in rotating fit connection with the fixed seat, the front end of the longitudinally arranged trapezoidal screw rod penetrates through the fixed seat and is in rotating fit connection with the fixed seat, the left end of the transversely arranged trapezoidal screw rod is in rotating fit connection with the fixed seat, the right end of the transversely arranged trapezoidal screw rod penetrates through the fixed seat and is in rotating fit connection with the fixed seat, the first shell and the second shell are both positioned above the groove, and the trapezoidal screw rod is positioned in the groove, so that a die can be conveniently placed on the base above the groove, the trapezoidal screw rod can independently rotate, and meanwhile, the die can be conveniently fixed.

Further, the inside of the first shell is of a hollow structure, one surface of the first shell facing the inner side is provided with a port through which the first top block can independently enter and exit, and the first spring is positioned in the first shell;

The second shell is of a hollow structure, the surfaces of the second shell facing the inner side are provided with ports for the second top block to independently enter and exit, and the second springs are positioned in the second shell;

when the first spring is in a compressed state, one end of the first ejector block, which faces the die, is positioned outside the first shell;

When the second spring is in a compressed state, one end of the second ejector block, which faces the die, is positioned outside the second housing.

The first spring is positioned in the first shell, one end of the first ejector block, which faces the die, is positioned outside the first shell, the second spring is positioned in the second shell, one end of the second ejector block, which faces the die, is positioned outside the second shell, and therefore the first spring and the second spring can be protected, and the first ejector block and the second ejector block can be prevented from tilting downwards.

Further, the number of the first springs and the second springs is four.

Four first springs make first kicking block more stable, and four second springs make the second kicking block more stable, and the cushioning effect is good.

Further, one end of the first spring fixed in the first shell is connected with a first cover plate, and one end of the second spring fixed in the second shell is connected with a second cover plate.

The first top block at the connecting end of the first spring and the second top block at the connecting part of the second spring are both fixedly provided with stop blocks, the stop blocks fixed on the first top block are used for preventing the first top block from moving out of the first shell in the front-back movement process, the stop blocks fixed on the second top block are used for preventing the second top block from moving out of the second shell in the left-right movement process, the first top block is conveniently installed in the first shell, and the second top block is conveniently installed in the second shell.

Further, the first propping module is arranged in a front-back symmetrical mode by taking the transversely arranged trapezoidal screw rods as axes, and the second propping module is arranged in a left-right symmetrical mode by taking the longitudinally arranged trapezoidal screw rods as axes.

The first propping module and the second propping module inwards fix the die at the center of the staggered position of the trapezoidal screw rod, so that the die is convenient to process and position, and the fixing position of the die is adjusted according to the installation position of the nut on the trapezoidal screw rod in actual use.

Compared with the prior art, the utility model has the following beneficial effects:

Drawings

FIG. 1 is a front elevational view of a mold tooling precision positioning apparatus;

FIG. 2 is a bottom view of FIG. 1;

FIG. 3 is a schematic view of the first jack module of FIG. 2;

FIG. 4 is a cross-sectional view of A-A of FIG. 3;

FIG. 5 is a right side view of the second jack module of FIG. 2;

FIG. 6 is a cross-sectional view taken in the direction B-B of FIG. 5;

FIG. 7 is a left side view of the first housing of FIG. 4;

FIG. 8 is a cross-sectional view of C-C of FIG. 7;

FIG. 9 is a schematic view of the first top block of FIG. 4;

fig. 10 is a left side view of fig. 9;

FIG. 11 is a schematic view of the first cover plate of FIG. 4;

FIG. 12 is a right side view of FIG. 11;

Fig. 13 is a perspective view of the positioning die of fig. 1.

The device comprises a base, a screw-nut assembly, a 2.1 trapezoid screw, a 2.2 fixing seat, a 2.3 nut, a 3 first jacking module, a 3.1 first shell, a 3.2 first jacking block, a 3.3 first spring, a 3.4 first cover plate, a 4 second jacking module, a 4.1 second shell, a 4.2 second jacking block, a 4.3 second spring, a 4.4 second cover plate, a 5 groove.

Detailed Description

The present utility model is further illustrated by the following examples, which are not intended to be limiting, but any modifications, equivalents, improvements, etc. within the spirit and principles of the present utility model are intended to be included within the scope of the present design.

Examples

The following materials were used in this example:

a stainless steel square thick plate is prepared as a raw material, and is milled into a base 1. As shown in fig. 1 and 2, two crisscrossed grooves are machined in the center of the stainless steel thick plate, wherein the longitudinal grooves are deeper than the transverse grooves, and are staggered one above the other.

Stainless steel blocks are prepared as raw material and are milled and drilled into the first housing 3.1. As shown in fig. 7 and 8, the first housing 3.1 has an inverted convex structure, on which a round hole which is communicated with each other in front and back and a square stepped hole which is communicated with each other in front and back are formed, the square stepped hole is located at an upper side, and the round hole is located at a lower side.

The stainless steel block is prepared as a raw material, and is milled and drilled to form a second housing 4.1. As shown in fig. 5 and 6, the structure of the second housing 4.1 is identical to that of the first housing 3.1, the sizes of the holes are completely consistent, and the sizes of the second housing 4.1 and the first housing 3.1 can be processed according to the sizes of dies in actual use.

Stainless steel blocks are prepared as raw materials, and are milled into a first top block 3.2 and a second top block 4.2. The first top piece 3.2 and the second top piece 4.2 are identical in structure and size. As shown in fig. 9 and 10, a boss is machined on one end face of the first top block 3.2, and four blind holes which are round and are used for installing the first springs 3.3 are machined on the stopper.

Stainless steel blocks are prepared as raw materials, and are milled into a first cover plate 3.4 and a second cover plate 4.4. The first cover plate 3.4 and the second cover plate 4.4 are identical in structure and size. As shown in fig. 11 and 12, the first cover plate 3.4 has a rectangular block structure, and four circular bosses connected to the first spring 3.3 are fixed to one surface of the block structure.

Sixteen springs were prepared, respectively a first spring 3.3 and a second spring 4.3.

Two sets of lead screw nut assemblies 2 are prepared. The screw-nut assembly 2 is a prior art and comprises a bidirectional trapezoidal screw 2.1, a fixed seat 2.2 and a nut 2.3.

A plurality of bolts are prepared.

The assembly mode of the materials is as follows:

In the first step, as shown in fig. 3 and 4, a first top block 3.2 is installed in a stepped hole formed in the upper part of a first shell 3.1, then four first springs 3.3 are installed in round blind holes of the first top block 3.2, finally a first cover plate 3.4 is covered, four cylindrical bosses of the first cover plate 3.4 penetrate into the springs, the first cover plate 3.4 is fixed on the first shell 3.1 by bolts, and a mounting hole is formed at the covering position of the first cover plate 3.4, so that the first top module 3 is assembled.

The second tightening module 4 has the same structure as the first tightening module 3, so that the second tightening module 4 is assembled by the same method as the first tightening module 3.

In a second step, as shown in fig. 1 and 2, the first tightening module 3 is assembled with the screw nut assembly 2. The trapezoidal screw 2.1 with the nut 2.3 is inserted longitudinally into the longitudinal groove 5, in particular into the round holes of the two first housings 3.1 in the groove 5, and the first housings 3.1 are fastened to the nut 2.3 by means of bolts. The second jacking module 4 is assembled with the screw-nut assembly 2 and is transversely arranged in a transverse groove 5 on the base 1.

And thirdly, fixing the screw nut component 2 in the groove 5 of the base 1 through the fixing seat 2.2. As shown in fig. 1, the two first tightening modules 3 are symmetrically arranged around the crossing position of the two grooves 5 of the base 1, and the two second tightening modules 4 are symmetrically arranged around the crossing position of the two grooves 5 of the base 1.

The usage is as follows:

As shown in fig. 13, the die is placed at the center of the base 1, and the two trapezoidal screws 2.1 are screwed to clamp the die at the center of the base 1 by the first jack module 3 and the second jack module 4, at which time the first jack 3.2 and the second jack 4.2 are retracted into the first housing 3.1 and the second housing 4.1, and the first spring 3.3 and the second spring 4.3 are compressed accordingly, and are in a compressed state. The screw-nut component 2 has limited self-locking property, and in the mold processing process, the nut 2.3 still has tiny backspacing when being stressed by external force, the positioning accuracy is affected, the first spring 3.3 and the second spring 4.3 are utilized to generate elastic deformation to clamp the mold by utilizing inward thrust of the first ejector block 3.2 and the second ejector block 4.2, so that the tiny backspacing of the nut 2.3 is compensated, and the positioning accuracy is ensured.

The accurate positioning device for the die machining can be suitable for dies of different sizes, the replacement of positioning pieces during positioning of different dies is reduced, the positioning is quick and accurate, and the dies are not easy to loosen due to external force.

Claims

1. A mold processing precision positioning device, comprising a base (1), characterized in that: two sets of screw nut assemblies (2) are arranged on the base (1), the screw nut assemblies (2) each comprising a trapezoidal screw (2.1) that can rotate independently, the two trapezoidal screws (2.1) are cross-staggered and independently distributed up and down, and nuts (2.3) that are threaded and matched are spaced apart on the trapezoidal screws (2.1) on both sides of the staggered point;

A first tightening module (3) is fixed to the top of two nuts (2.3) mounted on a longitudinally arranged trapezoidal screw rod (2.1), the first tightening module (3) comprising a first housing (3.1), the inner sides of the two first housings (3.1) being connected to a first top block (3.2) via a first spring (3.3), the first spring (3.3) being arranged longitudinally between the first housing (3.1) and the first top block (3.2), one end of the first spring (3.3) being connected to the first housing (3.1), and the other end being connected to the first top block (3.2);

A second tightening module (4) is fixed to the top of two nuts (2.3) mounted on a transversely arranged trapezoidal screw rod (2.1), the second tightening module (4) comprising a second outer shell (4.1), the inner sides of the two second outer shells (4.1) are connected to a second top block (4.2) via a second spring (4.3), the second spring (4.3) is arranged transversely between the second outer shell (4.1) and the second top block (4.2), one end of the second spring (4.3) is connected to the second outer shell (4.1), and the other end is connected to the second top block (4.2);

When the first spring (3.3) and the second spring (4.3) are in a compressed state, the first top block (3.2) and the second top block (4.2) respectively press inward against the mold.

2. The mold processing precise positioning device according to claim 1 is characterized in that: the base (1) is provided with a groove (5) corresponding to the trapezoidal screw (2.1), the trapezoidal screw (2.1) is installed in the groove (5), and the end of the groove (5) is fixed with a fixed seat (2.2), and the trapezoidal screw (2.1) and the fixed seat (2.2) are connected in a rotational fit.

3. The mold processing precise positioning device according to claim 2, characterized in that: the interior of the first shell (3.1) is a hollow structure, a side of the first shell (3.1) facing the inside is provided with an opening through which the first top block (3.2) can enter and exit independently, and the first spring (3.3) is located inside the first shell (3.1);

The interior of the second shell (4.1) is a hollow structure, and a hole through which the second top block (4.2) can enter and exit independently is provided on one side of the second shell (4.1) facing inward, and the second spring (4.3) is located inside the second shell (4.1);

When the first spring (3.3) is in a compressed state, one end of the first top block (3.2) facing the mold is located outside the first housing (3.1);

When the second spring (4.3) is in a compressed state, one end of the second top block (4.2) facing the mold is located outside the second shell (4.1).

4. The mold processing precise positioning device according to claim 3, characterized in that: there are four first springs (3.3) and four second springs (4.3).

5. The mold processing precise positioning device according to claim 4, characterized in that: one end of the first spring (3.3) fixed in the first shell (3.1) is connected to the first cover plate (3.4), and one end of the second spring (4.3) fixed in the second shell (4.1) is connected to the second cover plate (4.4).

6. The mold processing precise positioning device according to claim 5 is characterized in that: the first clamping module (3) is symmetrically arranged front and back with the trapezoidal screw (2.1) arranged transversely as the axis, and the second clamping module (4) is symmetrically arranged left and right with the trapezoidal screw (2.1) arranged longitudinally as the axis.