CN217676289U - Mould embryo hoisting structure - Google Patents

Abstract

The application discloses a mould embryo hoisting structure, including the template, its characterized in that: still include hoist and mount auxiliary block, hoist and mount auxiliary block components of a whole that can function independently setting and be suitable for fixed connection the template, hoisting structure is still including running through the template just extends into the rings screw of hoist and mount auxiliary block, the rings screw is suitable for threaded connection rings. The automatic cutting machine has the advantages of safety, reliability, convenience in use, high machining efficiency and low machining cost.

Description

Mould embryo hoisting structure

Technical Field

The application relates to the technical field of mold blanks, in particular to a hoisting structure of the mold blanks.

Background

Various tools and products used in daily production and life are large as a base and a machine body shell of a machine tool and small as a shell of a head screw, a button and various household appliances, and have no close relation with a die. The shape of the mold determines the shape of the products, and the processing quality and precision of the mold determine the quality of the products. Because of the differences in material, appearance, specification and usage of various products, the molds are classified into non-plastic molds such as casting molds, forging molds, die-casting molds, stamping molds, and the like, and plastic molds. The mould blank and the mould plate are important components of the mould and are the basis of the mould.

Four angles in the plane of mould fixed plate need design rings screw as hoisting structure around the mould embryo, generally with the design thickening of thick board to guarantee rings screw's wrong income length, thereby ensure hoist and mount safety. The disadvantages of this design: the plate thickness must be designed and thickened, the bosses are milled by a CNC machine tool, and the milling area is large, so the required processing time is long, and the raw material purchase cost, the processing and manufacturing cost and the production period are increased.

Therefore, how to improve the existing mold blank hoisting structure to overcome the above problems is a problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

An aim at of this application provides a safe and reliable, convenient to use, and machining efficiency is high, and the mould embryo hoisting structure that the processing cost is low.

In order to achieve the above purposes, the technical scheme adopted by the application is as follows: the utility model provides a mould embryo hoisting structure, includes the template, its characterized in that: still include hoist and mount auxiliary block, hoist and mount auxiliary block components of a whole that can function independently sets up and is suitable for fixed connection the template, hoisting structure is still including running through the template just extends into the rings screw of hoist and mount auxiliary block, the rings screw is suitable for threaded connection rings.

Furthermore, a limiting groove is formed in the template, and the hoisting auxiliary block is suitable for being embedded and fixed in the limiting groove.

Furthermore, the hoisting auxiliary block is suitable for being fixed on the template through bolts.

Furthermore, a threaded hole is formed in the template, a first through hole is formed in the hoisting auxiliary block in a penetrating mode, and the bolt is suitable for penetrating through the first through hole and is in threaded connection with the threaded hole, so that the template and the hoisting auxiliary block are fixedly connected.

Furthermore, a countersunk hole is further formed in the end part of the first through hole, and the tail end of the bolt is embedded in the countersunk hole.

Furthermore, a positioning pin is arranged between the template and the hoisting auxiliary block, and the positioning pin and the bolt are arranged in the same direction.

Furthermore, a pin hole is formed in the template, a second through hole is formed in the auxiliary hoisting block in a penetrating mode, the positioning pin is suitable for penetrating through the second through hole and connected into the pin hole in an interference mode, and therefore the template and the hoisting ring screw hole in the auxiliary hoisting block are positioned to be concentric.

Furthermore, the hoisting ring screw hole or the bottom hole thereof penetrates through the hoisting auxiliary block, a fool-proof cover plate is fixedly arranged on the hoisting auxiliary block, and the fool-proof cover plate is suitable for covering the hoisting ring screw hole.

Furthermore, the whole cross section of the hoisting auxiliary block is in a regular polygon or a circle, and the hoisting ring screw hole is formed in the center of the hoisting auxiliary block.

Furthermore, the bolts are regularly and uniformly distributed on the hoisting auxiliary block, and the positioning pins are at least two and uniformly distributed between the two bolts.

Compared with the prior art, the method has the following beneficial effects: (1) The split arrangement of the hoisting auxiliary block can greatly reduce the raw material purchasing cost and the processing and manufacturing cost, and shorten the production period; (2) The hoisting ring screw holes are machined after the template and the hoisting auxiliary block are fixedly connected into an integral structure, so that the concentricity of the two sections of hoisting ring screw holes can be ensured, and the reliable connection of the hoisting rings is further ensured; (3) The hoisting auxiliary block is fixed on the non-hoisting surface of the template, so that the hoisting auxiliary block does not directly bear hoisting force, but bears most of the hoisting force by the template, and the template is directly connected with other parts of the die carrier, so that the reliable connection strength is realized, the potential safety hazard of hoisting is reduced, and the reliability of a hoisting structure is ensured.

Drawings

FIG. 1 is a schematic perspective view of a preferred embodiment according to the present application;

FIG. 2 is an exploded view of a preferred embodiment according to the present application;

FIG. 3 is a schematic diagram of a square structure of a hoisting auxiliary block according to a preferred embodiment of the present application;

FIG. 4 is a schematic diagram of a square circular structure of a hoisting auxiliary block according to a preferred embodiment of the present application;

FIG. 5 is a schematic diagram of the structure of a template machined at step one of the machining methods according to a preferred embodiment of the present application;

FIG. 6 is a schematic structural diagram of a hoisting auxiliary block machined in step two of the machining method according to a preferred embodiment of the present application;

FIG. 7 is a schematic diagram of the construction of the template and auxiliary blocks assembled in step three of the manufacturing process according to a preferred embodiment of the present application;

FIG. 8 is a schematic structural view of an eye screw hole machined at step four of the machining method according to a preferred embodiment of the present application;

FIG. 9 is a schematic structural view of the foolproof cover plate processed at step five of the processing method according to the preferred embodiment of the present application;

FIG. 10 is a process flow diagram of a method of processing in accordance with a preferred embodiment of the present application.

In the figure: 1. a template; 11. a limiting groove; 12. a threaded hole; 13. a pin hole; 2. hoisting the auxiliary block; 21. a first through hole; 211. countersinking; 22. a second through hole; 3. a lifting ring screw hole; 4. a bolt; 5. positioning pins; 6. prevent slow-witted apron.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments described below or between the technical features may form a new embodiment.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.

It should be noted that the terms "first," "second," and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

As shown in fig. 1 to 4, a mold blank hoisting structure according to a preferred embodiment of the present application includes a mold plate 1 and a hoisting auxiliary block 2, the hoisting auxiliary block 2 is separately disposed and adapted to be fixedly connected to the mold plate 1, the hoisting structure further includes a hanging ring screw hole 3 penetrating through the mold plate 1 and extending into the hoisting auxiliary block 2, and the hanging ring screw hole 3 is adapted to be in threaded connection with a hanging ring (the hanging ring is a standard component, and therefore, is not shown in the drawings). Compared with a milled boss, the hoisting auxiliary block 2 is arranged in a split manner, so that the raw material purchasing cost and the processing and manufacturing cost can be greatly reduced, and the production period can be shortened. Another key point is that the lifting ring screw holes 3 are processed after the template 1 and the hoisting auxiliary block 2 are fixedly connected into an integral structure, so that the concentricity of the two sections of lifting ring screw holes 3 can be ensured, and the reliable connection of the lifting rings is further ensured. Moreover, as can be seen from the above structure, the auxiliary hoisting block 2 is fixed on the non-hoisting surface of the template 1, so that the auxiliary hoisting block 2 does not directly bear the hoisting force, but the template 1 bears most of the hoisting force, and the template 1 is directly connected with other parts of the formwork, so that the reliable connection strength is achieved, the potential safety hazard of hoisting is reduced, and the reliability of the hoisting structure is ensured.

It is worth mentioning that the fixed connection structure of the hoisting auxiliary block 2 and the template 1 has various forms, and it is easy to think that the hoisting auxiliary block is fixed by welding. However, welding has the following disadvantages: the welding position affects the appearance, and the repair and the assembly need to spend more time and processing cost; in addition, once the welding part is stressed and easily falls off, the welding part needs to be welded again with high probability; the large tracts of land is burnt and is welded and can lead to template 1 to take place to warp, and the high temperature of just welding can influence the material molecular structure, can lead to the material hardness uneven because of burning to weld, and can be because of the heat energy increase template 1 internal stress that the burning produced, influences the whole quality of mould embryo.

Based on this, the present embodiment preferably adopts the bolts 4 to fixedly connect the hoisting auxiliary block 2 and the formwork 1. The bolt 4 can realize the detachable connection of the hoisting auxiliary block 2, the hoisting auxiliary block 2 is convenient to install when needing hoisting, and the hoisting auxiliary block 2 can be detached when needing no hoisting, so that the structure of the die carrier is simplified, and the die carrier has higher applicability.

Meanwhile, in the design, a limiting groove 11 is formed in the template 1, the hoisting auxiliary block 2 is suitable for being embedded and fixed in the limiting groove 11, namely, the hoisting auxiliary block 2 is embedded into the end face of the template 1, so that the template 1 can limit the movement of the hoisting auxiliary block 2 in the horizontal direction, on one hand, the dislocation of hoisting ring screw holes 3 at two ends can be avoided or reduced, the concentricity of the hoisting ring screw holes 3 is ensured, on the other hand, the hoisting auxiliary block 2 is ensured not to be broken or fall off due to external force, and the use safety is improved.

Based on above-mentioned structure, still be provided with locating pin 5 between template 1 and the supplementary piece 2 of hoist and mount, locating pin 5 and bolt 4 syntropy set up. The positioning pin 5 is adopted for positioning, so that the dislocation situation between the lifting ring screw hole 3 in the lifting auxiliary block 2 and the lifting ring screw hole 3 on the template 1 caused by machining errors, assembly tolerance and the like is avoided (namely, the lifting ring screw hole 3 is ensured to be concentric all the time).

As shown in fig. 2, the concrete assembly structure of the positioning pin 5 and the bolt 4 is as follows: a threaded hole 12 is formed in the template 1, a first through hole 21 is formed in the hoisting auxiliary block 2 in a penetrating mode, and the bolt 4 is suitable for penetrating through the first through hole 21 and being in threaded connection with the threaded hole 12, so that the template 1 and the hoisting auxiliary block 2 are fixedly connected; wherein, the end of the first through hole 21 is also provided with a counter bore 211, and the tail end of the bolt 4 is embedded in the counter bore 211; the template 1 is provided with a pin hole 13, the hoisting auxiliary block 2 is provided with a second through hole 22 in a penetrating manner, and the positioning pin 5 is suitable for penetrating the second through hole 22 and is connected in the pin hole 13 in an interference manner, so that the positioning template 1 and the hoisting auxiliary block 2 are concentric with each other through the hoisting ring screw hole 3.

For processing convenience, use CNC to add man-hour, rings screw 3 or its bottom hole generally directly run through hoist and mount auxiliary block 2, still fix on hoist and mount auxiliary block 2 and be provided with prevent slow-witted apron 6, prevent slow-witted apron 6 and be suitable for the lid to close rings screw 3. On the face is lifted by crane to the non-, the design is prevented slow-witted apron 6 and is covered rings screw 3, is in order to prevent slow-witted, avoids operative employee at links such as turning over the board, transporting, and the work is lifted by crane from the face is lifted by crane to the non-to further reduce the potential safety hazard.

As shown in fig. 3 and 4, the hoisting auxiliary block 2 has two types, namely a circular structure and a square structure, in the standard structural design, so that the interference caused by insufficient design space can be avoided, and the die design is more flexible. Based on the above shape, the hanging ring screw hole 3 is preferably opened at the center position of the hoisting auxiliary block 2.

As can be seen from fig. 3 and fig. 4, in the present embodiment, four bolts 4 are arranged and regularly and uniformly distributed on the hoisting auxiliary block 2, and two positioning pins 5 are arranged and uniformly distributed between two bolts 4.

As shown in fig. 5 to 10, the present application further provides a processing method of the mold blank hoisting structure, which mainly includes the following five steps:

the method comprises the following steps: machining and forming the template 1 shown in FIG. 5;

step two: machining and forming the hoisting auxiliary block 2 shown in figure 6;

step three: as shown in fig. 7, the auxiliary hoisting block 2 is fixedly mounted on the formwork 1;

step four: processing a lifting ring screw hole 3 shown in figure 8 from the plane of the template 1, and extending into the auxiliary hoisting block 2;

step five: a fool-proof cover plate 6 shown in fig. 9 is fixed on the hoisting auxiliary block 2, and the fool-proof cover plate 6 covers the hoisting ring screw hole 3.

As shown in fig. 5, the first step specifically includes: processing a limiting groove 11 on the template 1; the die plate 1 is provided with screw holes 12 and pin holes 13.

As shown in fig. 6, the second step specifically includes: a first through hole 21 and a second through hole 22 are processed on the hoisting auxiliary block 2.

As shown in fig. 7, the third step specifically includes: embedding the hoisting auxiliary block 2 in the limiting groove 11 for fixed installation; the bolt 4 passes through the first through hole 21 and is screwed into the threaded hole 12; the dowel pin 5 is inserted through the second through hole 22 and interference-connected into the dowel hole 13.

In the fifth step, the fixing mode of the fool-proof cover plate 6 includes but is not limited to one or more of welding, bonding, clamping, screw connection and magnetic connection.

As a refinement, the above processing method further includes a quality inspection step, as shown in fig. 10: detecting whether the fixed installation of the hoisting auxiliary block 2 and the template 1 is qualified or not after the step three; detecting whether the lifting ring screw hole 3 is qualified or not after the step four; and checking whether the mould blank hoisting structure is qualified or not after the fifth step.

The processing method of the die blank hoisting structure, except for the processing steps, also sets the following processing parameters:

as shown in fig. 8, the thickness of the processed template 1 is D, the thickness of the processed hoisting auxiliary block 2 is H, the length of a hoisting ring screw hole on the template 1 is L1, and the length of a hoisting ring screw hole on the hoisting auxiliary block 2 is L2; wherein D is less than H, and L1 is less than L2. In this example, D =70mm, h =85mm, l1=60mm, l2=68mm. Obviously, for the hoisting safety, the screwing-in length of the hoisting ring, i.e. the length of the hoisting ring screw hole 3, needs to be ensured. The length of rings screw 3 depends on the thickness sum of template 1 and hoist and mount auxiliary block 2, and template 1 area is great, increases its thickness and can greatly increased manufacturing cost, consequently the preferred less thickness of hoist and mount auxiliary block 2 of increase area of this embodiment, under the prerequisite of guaranteeing rings screw-in length, reduces the whole manufacturing cost of die carrier.

As shown in fig. 8, the depth of the processed limit groove 11 is E; wherein D/20 is more than E and less than D/5, and E is more than or equal to 2mm. In this example E =10mm. It is foreseeable that limiting groove 11 is too deep can reduce the thickness of template 1 junction, and then reduces template 1's bulk strength, and limiting groove 11 is too shallow can not play the spacing effect, and hoist and mount auxiliary block 2 receives external force and drops easily. Therefore, the depth E of the limiting groove 11 is positively correlated with the thickness D of the template 1, a reasonable proportional relation and a minimum value of the depth E are set, and the limiting effect of the limiting groove 11 is achieved on the premise that the strength of the template 1 is guaranteed.

As shown in fig. 8, the minimum width of the processed hoisting auxiliary block 2 is W, and the nominal diameter of the processed hoisting ring screw hole 3 is M; wherein W is more than 2.M and less than 3.M, and H is more than M and less than 2.M. In this example W =148mm, m =64mm. In the embodiment, the hoisting auxiliary block 2 is round or square, so that W is the round diameter or the square side length; the main purpose of setting the minimum width W at least twice the nominal diameter M is to reserve enough space for mounting the bolt 4 and the positioning pin 5 and to avoid tearing at the first through hole 21 and the second through hole 22 due to too small thickness. Of course, too large a minimum width W may weight the hoist auxiliary block 2 and may increase the manufacturing cost. According to the national standard of lifting ring screws GB825-88, the length of the threaded section of the lifting ring is generally twice its nominal diameter, so the total length of the lifting ring threaded hole 3 designed in this embodiment is L1+ L2=128mm, and is twice its nominal diameter M, i.e., L1+ L2=2M, and L1 < L2 is set in combination with the above parameters, and it can be known that H > L2, H > M and H < 2 · M are inferred. It is expected that most of the lifting force is borne by the formwork 1, so L1 should not be too small, and L2 is preferably set to be slightly larger than L1 in this embodiment (L1 =60mm, and L2=68mm is a reasonable value).

Due to the existence of machining errors and assembly tolerances, certain dislocation of the lifting ring screw hole 3 occurs more or less in the use process, and in order to control the dislocation of the lifting ring screw hole 3 within an acceptable range, the matching precision between the lifting auxiliary block 2 and the limiting groove 11 needs to be improved, so that the matching of the lifting auxiliary block 2 and the limiting groove 11 is equivalent to shaft hole matching, and the matching gap between the lifting auxiliary block 2 and the limiting groove 11 is K (which can be regarded as artificially set non-standard matching tolerance); the matching of the hanging ring screw hole 3 and the hanging ring is equivalent to the matching of an axle hole, and the limit matching clearance between the two is J; wherein K is less than or equal to J, and K and J are in positive correlation. It should be noted that the conventional screw hole and bolt have a large tolerance range in the fitting, and the screw hole misalignment condition is not considered, so that the conventional screw hole and bolt are not suitable as the tolerance for defining the fitting gap K in the present embodiment. As a referenceable object, in the embodiment, the matching of the hanging ring screw hole 3 and the hanging ring is equivalent to shaft hole matching, the nominal diameter M =64mm of the hanging ring screw hole 3 is known, the matching precision grade 6H commonly used for common threads is selected, and according to the national standard 'standard tolerance grade and limit deviation table of holes and shafts GB/T1801-1999', the tolerance on the shaft with the diameter of 64mm is inquired to be 0, the lower tolerance is-0.019 mm, the tolerance on the hole with the diameter of 64mm is +0.019mm, and the lower tolerance is 0; the minimum value of the shaft is 64-0.019=63.981mm, the maximum value of the hole is 64+0.019=64.019mm, and the limit fit clearance between the two is J =64.019-63.981=0.038mm. The J value is used as a reference, the K value is set, K =0.02mm is set in this embodiment, that is, the matching tolerance of the hoisting auxiliary block 2 and the limiting groove 11 is controlled within 0.02mm, so as to meet the design requirement.

The mould blank hoisting structure processed and formed by the processing method has the following advantages:

(1) Through repeated tests, the use safety of the hoisting auxiliary block meets the design requirement; the auxiliary block of hoist and mount buries the template in the design, with the bolt fastening, including locating pin assistance-localization real-time, reached in the performance with the effect that directly welds the welding unanimity, but does not have the drawback of welding, and convenient dismantlement in the use is changed. In conclusion, compared with the traditional structure, the use safety is improved by about 50 percent;

(2) Compared with the traditional design and processing, the template of the application adopts a novel hoisting auxiliary block structure, and the production period is shortened by 25-30%;

(3) Compared with the traditional processing, the template of the application adopts a novel hoisting auxiliary block structure, and the processing cost is reduced by 20-30%;

(4) The production and processing of the novel hoisting auxiliary block are carried out by a special process route, and the one-time processing qualification rate reaches 99.9 percent (the qualification rate of the traditional processing is about 90 percent).

The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims (10)

1. The utility model provides a mould embryo hoisting structure, includes the template, its characterized in that: still include hoist and mount auxiliary block, hoist and mount auxiliary block components of a whole that can function independently sets up and is suitable for fixed connection the template, hoisting structure is still including running through the template just extends into the rings screw of hoist and mount auxiliary block, the rings screw is suitable for threaded connection rings.

2. The mold blank hoisting structure according to claim 1, wherein: the template is provided with a limiting groove, and the hoisting auxiliary block is suitable for being embedded and fixed in the limiting groove.

3. The mold blank hoisting structure of claim 2, wherein: the hoisting auxiliary block is suitable for being fixed on the template through bolts.

4. The mold blank hoisting structure according to claim 3, wherein: the template is provided with a threaded hole, the hoisting auxiliary block is provided with a first through hole in a penetrating manner, and the bolt is suitable for penetrating through the first through hole and is in threaded connection with the threaded hole, so that the template and the hoisting auxiliary block are fixedly connected.

5. The mold blank hoisting structure of claim 4, wherein: the end part of the first through hole is also provided with a countersunk hole, and the tail end of the bolt is embedded in the countersunk hole.

6. The mold blank hoisting structure according to claim 3, wherein: and a positioning pin is also arranged between the template and the hoisting auxiliary block and is arranged in the same direction as the bolt.

7. The mold blank hoisting structure according to claim 6, wherein: the template is provided with a pin hole, the hoisting auxiliary block is provided with a second through hole in a penetrating mode, and the positioning pin is suitable for penetrating through the second through hole and connected in the pin hole in an interference mode, so that the template and the hoisting auxiliary block are positioned in a concentric mode through the hoisting ring screw hole.

8. The mold blank hoisting structure of claim 1, wherein: the hoisting ring screw hole or the bottom hole of the hoisting ring screw hole penetrates through the hoisting auxiliary block, a fool-proof cover plate is fixedly arranged on the hoisting auxiliary block, and the fool-proof cover plate is suitable for covering the hoisting ring screw hole.

9. The mold blank hoisting structure according to claim 6, wherein: the lifting auxiliary block is regular polygon or circular in overall section, and the lifting ring screw hole is formed in the center of the lifting auxiliary block.

10. The mould blank hoisting structure of claim 9, wherein: the bolts are regularly and evenly distributed on the hoisting auxiliary block, and the positioning pins are at least two and evenly distributed between the two bolts.

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