CN216264604U - Mold core processing jig - Google Patents

Abstract

The application discloses a die core processing jig which comprises a loading piece and a threaded piece, wherein the loading piece is provided with at least one mounting hole, and the mounting hole is used for sleeving a die core; the screw thread spare is connected the loading piece will mould benevolence support tightly in the pore wall of mounting hole, the mould benevolence processing tool of this application is more firm to the fixed of mould benevolence, and has reduced the wearing and tearing of mould benevolence to mould benevolence processing tool, has improved the machining precision to the mould benevolence.

Description

Mold core processing jig

Technical Field

The application relates to the technical field of jigs, especially, relate to a mould benevolence processing tool.

Background

The mold core is a precision part used for key operation of the center part of the mold and is used as a molding part of the mold, and the surface type and the size precision of the mold core are one of the decisive factors of the quality of a product.

Referring to fig. 1 and 2, in the related mold core processing technology, a V-shaped block 10 is usually used to fix a mold core 50, and the V-shaped block 10 has a simple structure and is easy to operate; however, the outer diameter of the mold core 50 generally has a plurality of models, the V-shaped block 10 is not convenient for fixing the mold cores 50 of different models, and the parameters of the dimension chain involved in the processing of the mold core 50 are more, if the V-shaped block 10 cannot stably fix the mold core 50 in the previous step, the subsequent processing dimension of the mold core 10 is naturally deviated, and finally the formed mold core 10 is unqualified. In addition, after the V-shaped block 10 fixes the mold insert 50 with the same outer diameter for many times, the V-shaped block 10 may be worn at the same place, which affects the processing precision.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a mould benevolence processing tool, it is more firm to the fixed of mould benevolence, and has reduced the wearing and tearing of mould benevolence to mould benevolence processing tool, has improved the machining precision to the mould benevolence.

The embodiment of the application provides a mould benevolence processing tool, mould benevolence processing tool includes:

the loading piece is provided with at least one mounting hole, and the mounting hole is used for sleeving the mold core;

and the threaded part is connected with the loading part and is used for abutting the die core against the wall of the mounting hole.

Based on this application embodiment's mould benevolence processing tool, mould benevolence adds man-hour, with mould benevolence slip peg graft in the mounting hole that corresponds, the mould benevolence of different external diameters install to corresponding hole diameter in the mounting hole can to further fix the mould benevolence in the mounting hole through the screw thread spare that sets up on loading the piece, make the fixed of loading the piece to mould benevolence more firm, prevent that mould benevolence from receiving the power that comes from the lathe tool in the course of working and taking place the incline in the mounting hole, and then influence the machining precision. Compared with the prior art, the mold cores with different diameters are fixed by the V-shaped block and the pressing plate, so that the matching between the V-shaped block and the mold cores is poor, in the application, the mounting holes with different hole diameters are formed in the loading piece corresponding to the mold cores with different models so as to match the mold cores with different diameters, the matching degree between the mold cores and the mounting holes is improved, the loading piece can fix the mold cores more stably and accurately, the subsequent mold cores can be machined more accurately, and the mold core machining precision of the mold core machining jig is improved; compared with the prior art, the mold core, the V-shaped block and the pressing plate are in line contact, in the application, the mold core outer wall and the wall of the mounting hole are in surface contact, the contact area between the mold core peripheral wall and the wall of the mounting hole is increased, the abrasion of the loading piece is reduced, the subsequent mold core and the loading piece still have a good matching relation, and the mold core processing precision of the mold core processing jig is further improved.

In some embodiments, the hole diameter D1 of the mounting hole is larger than the die core diameter D2 inserted into the mounting hole, the difference between the hole diameter D1 and the die core diameter D2 is D, and the difference D satisfies: d is more than or equal to 0.02mm and less than or equal to 0.04 mm.

Based on the above embodiment, the difference D between the hole diameter D1 of the mounting hole and the die core diameter D2 is set in the interval from 0.02mm to 0.04mm, and in this interval, the die core peripheral wall and the hole wall of the mounting hole have a higher fitting degree and a fit clearance, so that the loading piece can fix the die core more stably and accurately, and the die core can be conveniently assembled and disassembled.

In some embodiments, the mounting holes are provided in a plurality of groups, each group of the mounting holes includes at least one mounting hole, diameters of the mounting holes in the groups are different, and diameters of the mounting holes in each group of the mounting holes are the same.

Based on the embodiment, the loading piece is provided with the plurality of mounting holes, so that the loading piece can be simultaneously provided with the plurality of die cores, the centralized processing of the die cores is facilitated, and the processing efficiency is improved; the mounting holes with the same hole diameter are arranged into a group, so that the lathe can change the processing parameters after processing the mold cores with the same model, and continue to process the mold cores with another group of models, thereby simplifying the operation of the lathe in the process of processing the mold cores and further improving the processing efficiency.

In some of these embodiments, the threaded member comprises:

the threaded hole is formed in the loading piece and communicated with the mounting hole;

the threaded rod is in threaded fit with the threaded hole and is abutted against the die core in the mounting hole so as to enable the die core to be abutted against the wall of the mounting hole.

Based on above-mentioned embodiment, set up the screw hole with the mounting hole intercommunication on the loading piece, mould benevolence is after installing to the mounting hole, and threaded rod runs through the screw hole and one end supports tightly is in the mould benevolence in the mounting hole, realizes fixed to mould benevolence, and simultaneously, threaded rod one end supports makes mould benevolence hug closely in the pore wall of mounting hole behind the tight mould benevolence, strengthens mould benevolence and loading piece's cooperation relation, reduces because of the machining error that the cooperation clearance probably caused the mould benevolence.

In some of these embodiments, the central axis of the mounting hole is perpendicular to the central axis of the threaded hole.

Based on the above embodiment, after the mold core is installed in the installation hole, in order to ensure the machining precision of the mold core, it should be ensured that the mold core axis has good parallelism with the installation hole axis, and it is avoided that the mold core is inclined in the installation hole to cause deviation of the mold core machining size, therefore, the axis of the installation hole is perpendicular to the axis of the threaded hole, and since the mold core is installed in the installation hole, the mold core is coaxial with the installation hole, and then the threaded rod penetrates through the threaded hole to abut against the mold core, and the threaded rod exerts an acting force perpendicular to the mold core axis on the mold core in the installation hole, thereby ensuring the parallelism of the mold core axis and the installation hole axis.

In some embodiments, a protection member is disposed at one end of the threaded rod abutting against the mold insert.

Based on the embodiment, the protection piece prevents the threaded rod from damaging the mold core when the threaded rod abuts against the mold core.

In some of these embodiments, the diameter of the threaded hole is smaller than the diameter of the mounting hole.

Based on the above embodiment, the diameter of the threaded hole is smaller than the diameter of the mounting hole, so that the threaded hole is convenient to process, and the threaded hole is prevented from being too large in hole opening, so that the contact area between the peripheral wall of the mold core and the hole wall of the mounting hole is reduced.

In some of these embodiments, the loader comprises:

a top plate;

the bottom plate and the top plate are stacked and fixedly connected;

the top plate is provided with the mounting holes independently, the mounting holes are blind holes or through holes penetrating through the top plate, or the top plate and the bottom plate are provided with the mounting holes, the mounting holes penetrate through the top plate and the bottom plate, and the mounting holes are blind holes or through holes penetrating through the bottom plate.

Based on the above embodiment, the mold core is machined by a machine tool, and the loading member needs to be fixed to the machine tool; the mounting holes are independently formed in the top plate, and the bottom plate is only used for being fixedly connected with a machine tool, so that the overall structure of the die core processing jig is firmer; in addition, the mounting holes are formed in the top plate and the bottom plate, and the bottom plate is used for being fixedly connected with a machine tool, so that the height of a required loading piece is smaller for the die cores with the same length, the manufacturing material of the loading piece is saved, and the weight of the die core processing jig is reduced.

In some embodiments, an orthographic projection of the bottom plate on the top plate is located in an area where the top plate is located, and the mounting hole opened in the top plate is located outside the orthographic projection of the bottom plate.

Based on the embodiment, the orthographic projection of the bottom plate on the top plate is positioned in the area of the top plate, namely along the axial direction of the loading piece, the size of the bottom plate is smaller than that of the top plate, so that the manufacturing material of the loading piece is saved, and meanwhile, the bottom plate with smaller volume is convenient for the fixing of the loading piece and a machine tool; and the mounting holes arranged on the top plate are positioned outside the orthographic projection of the bottom plate, namely the mounting holes are arranged on the edge of the top plate, so that the threaded holes are conveniently communicated with the mounting holes.

In some of these embodiments, the holes of the plurality of mounting holes located at the same edge of the top plate have the same diameter and are equally spaced.

Based on above-mentioned embodiment, the hole diameter that is located a plurality of mounting holes at same edge is the same, can install the mould benevolence of the same model to the same edge of roof, makes things convenient for the car dress to concentrate on processing the mould benevolence of the same model, and equidistant setting makes the distance that the lathe tool removed at every turn fixed between the mounting hole, further promotes the machining efficiency of mould benevolence.

Based on this application embodiment's mould benevolence processing tool, mould benevolence adds man-hour, with mould benevolence slip peg graft in the mounting hole that corresponds, the mould benevolence of different external diameters install to the mounting hole that corresponds the diameter can to further fix the mould benevolence in the mounting hole through the screw thread spare that sets up on loading the piece, make the fixed of loading the piece to mould benevolence more firm, prevent that mould benevolence from receiving the power that comes from the lathe tool in the course of working and taking place the incline in the mounting hole, and then influence the machining precision. Compared with the prior art, the mold cores with different diameters are fixed by the V-shaped block and the pressing plate, so that the matching between the V-shaped block and the mold cores is poor, in the application, the mounting holes with different hole diameters are formed in the loading piece corresponding to the mold cores with different models so as to match the mold cores with different diameters, the matching degree between the mold cores and the mounting holes is improved, the loading piece can fix the mold cores more stably and accurately, the subsequent mold cores can be machined more accurately, and the mold core machining precision of the mold core machining jig is improved; compared with the prior art, the mold core, the V-shaped block and the pressing plate are in line contact, in the application, the mold core outer wall and the wall of the mounting hole are in surface contact, the contact area between the mold core peripheral wall and the wall of the mounting hole is increased, the abrasion of the loading piece is reduced, the subsequent mold core and the loading piece still have a good matching relation, and the mold core processing precision of the mold core processing jig is further improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view showing an overall structure of a V-shaped block and a pressing plate in the related art;

FIG. 2 is a schematic view of the V-block and platen of FIG. 1 from another perspective;

FIG. 3 is a schematic view of an overall structure of a mold insert according to the related art;

fig. 4 is a schematic structural view of a mold core processing jig according to an embodiment of the present application;

fig. 5 is a schematic view of the mold core processing jig, the mold core and the electromagnetic suction table in fig. 4.

Reference numerals: 10. a V-shaped block; 20. pressing a plate; 30. a loading member; 31. mounting holes; 32. a top plate; 33. a base plate; 40. a threaded member; 41. a threaded hole; 42. a threaded rod; 50. a mold core; 60. an electromagnetic suction table; a is the surface of the mold core to be processed.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

The mold core is a precise part used for key operation of the center part of the mold and is used as a molding part of the mold, the general structure of the mold core is extremely complex, the processing difficulty is very high, the surface type and the size precision of the mold core are one of the decisive factors of the quality of a product, therefore, the requirement on the size precision is extremely high in the processing process of the mold core, the manufacturing cost of the mold core is very high, the manual expenditure of the manufacture often greatly exceeds the material, and if the finally molded mold core is unqualified, the production cost of the mold core is greatly increased.

Referring to fig. 1 and 2, in the related mold core 50 processing technology, a V-shaped block 10 is usually used in combination with a pressing plate 20 to fix a mold core 50, specifically, the mold core 50 is placed in a V-shaped groove on the V-shaped block 10, two ends of the pressing plate 20 are respectively fixedly connected with the V-shaped block 10 through two studs, so that the mold core 50 is fixed between the pressing plate 20 and the V-shaped block 10, when the mold core 50 is processed, the V-shaped block 10 is fixed on an electromagnetic suction table 60 of a lathe, and an axis of the mold core 50 is perpendicular to a top surface of the electromagnetic suction table 60, at this time, a portion to be processed is actually a bottom surface of the mold core 50, so that the bottom surface of the mold core 50 is perpendicular to the axis of the mold core, and therefore, when the mold core 50 is fixed to the V-shaped block 10, the bottom surface of the mold core 50 faces upward for processing. However, the outer diameters of the mold cores 50 of different models are different, and the matching relationship between the mold cores 50 of different outer diameters and the V-shaped block 10 is inevitably different, so that the peripheral wall of the mold core 50 and the V-shaped block 10 are difficult to be tightly attached, and the size chain parameters of the different mold cores 50 are more in the processing process of the mold core 50, and if the connection between the mold core 50 and the V-shaped block 10 is not stable, the size parameters in the subsequent processing process will be wrong or need to be corrected, for example, when the mold core 50 is fixed, the peripheral wall of the mold core 50 and the V-shaped block 10 are not tightly attached, so that the axis of the mold core 50 is not perpendicular to the top surface of the electromagnetic suction table 60, and the verticality between the bottom of the processed mold core 50 and the axis of the mold core 50 is not very good. In addition, after the V-shaped block 10 fixes the mold cores 50 with the same outer diameter for multiple times, the mold cores 50 with the same diameter wear the V-shaped block 10 at the same place, and errors inevitably occur in the subsequent matching between the mold cores 50 and the V-shaped block 10, which affects the processing precision of the V-shaped block 10 on the mold cores 50.

In order to solve the above technical problem, referring to fig. 3-5, the present application provides a mold core processing jig, which can ensure that the bottom of a processed mold core 50 has a good perpendicularity with the axis of the mold core 50, reduce the abrasion of the mold core 50 to the mold core processing jig, and ensure the processing precision.

The mold core processing jig comprises a loading piece 30 and a threaded piece 40, wherein at least one mounting hole 31 is formed in the loading piece 30, and the mounting hole 31 is used for sleeving the mold core 50; the screw 40 connects the loading member 30 and presses the die core 50 against the wall of the mounting hole 31.

Based on the mold core processing jig of the embodiment of the application, the mold core 50 is inserted into the corresponding mounting hole 31 in a sliding manner, the mold core 50 with different outer diameters is mounted in the mounting hole 31 with the corresponding diameter, and the mold core 50 is fixed through the threaded piece 40, the mounting process of the mold core 50 is simplified, after the mold core 50 is mounted in the mounting hole 31, the mold core processing jig needs to be fixed on a lathe, a turning tool is adopted to process the surface to be processed of the mold core 50, in the process, the threaded piece 40 prevents the mold core 50 from deviating, moving and the like in the mounting hole 31 under the action force from the turning tool, and the verticality between the axis of the mold core 50 and the bottom surface of the mold core 50 is influenced.

The shape and the hole diameter of the mounting hole 31 are both set corresponding to the diameter of the existing mold core 50, so that the peripheral wall of the mold core 50 and the hole wall of the mounting hole 31 can be tightly attached after the mold core 50 is inserted into the mounting hole 31, and a good attachment degree is ensured between the peripheral wall of the mold core 50 and the hole wall of the mounting hole 31, so as to ensure that the axis of the mold core 50 is perpendicular to the top surface of the electromagnetic suction table 60, and further ensure that the bottom surface of the processed mold core 50 and the axis of the mold core 50 have good verticality, referring to fig. 3, the mold core 50 in the related art comprises a head part and a rod part, the head part is integrally arranged at one end of the rod part and is coaxially connected with the rod part, wherein the diameter of the head part is larger than the diameter of the rod part, and both are columnar, the a surface is the bottom surface of the mold core 50, i.e. the surface to be processed, therefore, in this embodiment, the mounting hole 31 is set corresponding to the shape of the rod part as a circular hole, and after the mold core 50 is mounted in the mounting hole 31, the rod is located in the mounting hole, and the diameter D2 of the die core 50 should be regarded as the diameter of the rod rather than the diameter of the head, and the head is located outside the mounting hole, i.e. the a surface of the die core 50 is located outside the mounting hole 31, so that the lathe tool can process the surface of the die core 50 to be processed.

The number of the mounting holes 31 may be set according to the requirement of the machining amount of the mold core 50, which is not limited in the embodiment of the present application; the mounting hole 31 can be machined in various ways, such as drilling, boring, reaming, broaching and the like, wherein reaming is a finish machining method for the diameter of a hole and is also a common hole machining method in die manufacturing, the machining precision of reaming can generally reach IT 6-IT 10 level, the surface roughness Ra is 0.4-0.2 mu m, and the more precise machining method can be manual reaming.

Because the mold core processing jig is magnetically attracted and connected with the lathe through the electromagnetic attraction table 60, the electromagnetic attraction table 60 generates magnetic force to fix the loading piece 30 when the power is on, and the magnetic force disappears when the power is off, so that the loading piece 30 is convenient to detach, part or all of the material of the loading piece 30 needs to be one or more of iron, nickel and cobalt, and in view of the production cost of the mold core processing jig, part of the material of the loading piece 30 is iron in the embodiment.

In the application, the mold core 50 is required to be smoothly inserted into the mounting hole 31 before processing, and the mold core 50 still needs to be ensured to be smoothly taken out of the mounting hole 31 after the mold core 50 is processed and heated to expand, so that the mold core processing jig can continuously process the subsequent mold core 50, and then, the matching relation between the mold core 50 and the mounting hole 31 needs to be clearance fit, namely, the hole diameter D1 of the mounting hole 31 is larger than the rod diameter, although the mold core 50 and the mounting hole 31 are non-standard parts, the tolerance fit between the mold core 50 and the mounting hole 31 can still be set according to the actual production condition by taking reference to GB 1800-1804-79; the interference fit refers to that the actual size of the hole is smaller than that of the shaft, and the shaft and the hole in the interference fit can be pressed into the hole only after a certain external force is needed or the part with the hole is heated and expanded during assembly; clearance fit, the actual size of the hole is always larger than the actual size of the shaft; transition fit, there may be clearance fit or interference fit when the bore is assembled with the shaft, at which time the tolerance band of the bore and the tolerance band of the shaft overlap.

In one embodiment, the hole diameter D1 of the mounting hole 31 is larger than the die core diameter D2 inserted into the mounting hole 31, the difference between the hole diameter D1 and the die core diameter D2 is D, and the difference D satisfies: d is not less than 0.02mm and not more than 0.04mm, and D can ensure that the peripheral wall of the die core 50 and the hole wall of the mounting hole 31 have close fitting degree and can ensure that the die core 50 can be smoothly taken out of the mounting hole 31 after being processed and expanded by heating in the interval.

It is difficult to machine a hole of exact value by machining, for example, a through hole of 10mm hole diameter as a basic size, and the final hole diameter must have an error, and in combination with the above tolerance, the through hole must have a standard size

The actual size of the through hole after being processed is qualified as long as the actual size is larger than 10+ d2mm and smaller than 10+ d1mm, and the actual size is not smaller than 10+ d2mmIn the specification, the dimensional tolerance refers to the allowable variation amount of the part size in the cutting process, d1 represents the upper deviation of the tolerance, d2 represents the lower deviation of the tolerance, and d1 and d2 can be negative values; the basic size refers to the size given in the design, and is determined by calculation, experiment or by analogy according to the use requirement. Since the difference D between the diameter D1 and the die core diameter D2 is small, the difference D can be calculated in the processing method to the processing tolerance of the mounting hole 31, and the diameters of the existing die core 50 are respectively 9mm, 12mm and 15mm, so the diameter of the mounting hole 31 can be processed according to the following dimensions,

or

In the present embodiment, the

And

the mounting hole 31 is processed.

Referring to fig. 4 and 5, in some embodiments, the loading element 30 includes a top plate 32 and a bottom plate 33, the bottom plate 33 and the top plate 32 are stacked and fixedly connected, wherein the top plate 32 is separately provided with a mounting hole 31, the mounting hole 31 is a blind hole or a through hole penetrating through the top plate 32, the bottom plate 33 is only used for fixing and clamping with a fixture of a machine tool, the depth of the mounting hole 31 should be not less than the height of the rod portion, so as to ensure that the rod portion can be completely located in the mounting hole 31, increase the contact area between the peripheral wall of the mold core 50 and the wall of the mounting hole 31, and further increase the acting force of the mold core 50 capable of bearing a turning tool, and at the same time, the loading element 30 needs to be magnetically adsorbed with the electromagnetic suction table 60, therefore, part or all of the loading element 30 is made of one or more of iron, cobalt, or nickel, specifically, in this embodiment, only the bottom plate 33 may be set to be one or more of iron, nickel, and considering that the acting force applied to the mold core 50 by the turning tool is necessarily transmitted to the top plate 32, in order to enhance the wear resistance of the top plate 32 and prolong the service life of the top plate 31, the top plate 32 may be made of a wear-resistant material, such as chromium carbide, high manganese steel, or tungsten carbide; since the top plate 32 and the bottom plate 33 are made of different materials, it is inevitably difficult to integrally form the two, and if the mounting holes 31 are simultaneously formed on the top plate 32 and the bottom plate 33, it is difficult to ensure that the mounting holes 31 formed on the top plate 32 and the mounting holes 31 formed on the bottom plate 33 have good coaxiality when the top plate 32 and the bottom plate 33 are fixedly connected, and therefore, in this embodiment, the mounting holes 31 are formed only on the top plate 32.

The loading member 30 may be in any shape as a carrier of the mold core 50, however, considering the convenience of disassembling and assembling the mold core 50 and the requirement of fixing and clamping the loading member 30 to the machine tool, the loading member 30 is set to be a regular body to facilitate disassembling and assembling the mold core 50 and fixing and clamping the loading member 30 to the machine tool, especially the loading member 30 set to be a regular body to facilitate clamping to the machine tool, and in some embodiments, the top plate 32 and the bottom plate 33 are both set to be rectangular.

According to different fixing connection modes of the top plate 32 and the bottom plate 33, the processing sequence of the mounting hole 31 on the top plate 32 is different, if the top plate 32 and the bottom plate 33 are connected by bolts, the top plate 32 and the bottom plate 33 can be fixedly connected after the mounting hole 31 is processed, and the mounting hole 31 can be processed after the top plate 32 and the bottom plate 33 are fixedly connected; if the top plate 32 and the bottom plate 33 are welded, the top plate 32 and the bottom plate 33 should be fixedly connected and then the mounting hole 31 is processed, the top plate 32 and the bottom plate 33 can also be fixedly connected after the mounting hole 31 is roughly hinged, and manual reaming is performed after the top plate 32 and the bottom plate 33 are connected, so that even if the top plate 32 is heated and deformed when the top plate 32 and the bottom plate 33 are welded, the diameter of the mounting hole 31 is changed, and the diameter of the mounting hole 31 can be corrected by manual reaming after the welding process.

In another embodiment, the top plate 32 and the bottom plate 33 are provided with the mounting holes 31, the mounting holes 31 penetrate through the top plate 32, and the mounting holes 31 provided on the bottom plate 33 are blind holes, so that the total height of the top plate 32 and the bottom plate 33 should be smaller than the length of the rod part to ensure that the rod part can be completely positioned in the mounting holes 31, compared with the case that the mounting holes 31 are only provided on the top plate 32, the required height of the loading part 30 is lower, in this embodiment, the required height of the loading part 30 is lower, so that less manufacturing materials are required, thereby not only saving the manufacturing cost of the mold core processing jig, but also reducing the weight of the mold core processing jig; meanwhile, the installation hole 31 is set as a blind hole, so that the bottom plate 33 isolates the mold core 50 from the electromagnetic suction table 60, and the mold core 50 is prevented from being magnetized by the electromagnetic suction table 60.

In another embodiment, the top plate 32 and the bottom plate 33 are provided with the mounting holes 31, and the mounting holes 31 are through holes penetrating through the top plate 32 and the bottom plate 33 simultaneously, this embodiment further reduces the height of the loading member 30, the loading member 30 requires less manufacturing materials, the mounting holes 31 are configured as through holes that cannot isolate the mold core 50 from the electromagnetic suction table 60, but the mounting holes 31 do not need to control the feeding amount of the turning tool deliberately during the hole forming process, and only the loading member 30 needs to be drilled through, which facilitates the processing of the mounting holes 31.

Also, with reference to fig. 4-level 5, in view of the weight and cost of the carriage 30, in some embodiments, the orthographic projection of the base plate 33 on the top plate 32 is located within the area of the top plate 32, that is, in the stacking direction of the top plate 32 and the bottom plate 33, the projection plane of the bottom plate 33 on the top plate 22 is located in the region of the top plate 32, the orthographic projection of the mounting hole 31 opened on the top plate 32 and positioned outside the orthographic projection of the bottom plate 33 is positioned in the area of the top plate 32, the mounting hole 31 opened on the top plate 32 is positioned outside the orthographic projection of the bottom plate 33, when the mounting hole 31 is only opened on the top plate 32 and penetrates through the top plate 32, the bottom end of the mold core 50 is inevitably extended out of the mounting hole 31 and located below the top plate 32 after being mounted in the mounting hole 31, when the mold core 50 is taken out of the loading member 30, the upward pushing force can be applied to the bottom end of the mold core 50 to smoothly take out the mold core 50 from the mounting hole 31, so that the mold core 50 can be conveniently detached from the top plate 32.

Because the plurality of mounting holes 31 of the loading part 30 can simultaneously clamp the plurality of mold cores 50, and the plurality of mold cores 50 have different processing requirements due to different models, in order to improve the processing efficiency, the mounting holes 31 with the same hole diameter are set into a group, that is, the mold cores 50 with the same model are mounted in the mounting holes 31 with the same hole diameter, so that a machine tool can process the mold cores 50 with the same model according to the same processing requirements, and then processes the next group of mold cores 50 with the same model.

Referring to fig. 4 and 5, in some embodiments, the plurality of sets of mounting holes 31 are provided, each set of mounting holes 31 includes at least one mounting hole 31, diameters of the sets of mounting holes 31 are different, and diameters of the mounting holes 31 in each set of mounting holes 31 are the same, so that the mounting holes 31 with the same diameter are set as a set, and the mold cores 50 with the same type can be intensively distributed on the loading member 30, further, the distance between adjacent mounting holes 31 in each set is equal, so that the distance that the turning tool moves each time is fixed, and the machining efficiency of the mold cores 50 is improved.

The diameters of the mold inserts 50 in the related art are respectively 9mm, 12mm and 15mm, and then the number of the installation holes 31 with the diameter of 15mm, which are formed in the same area of the top plate 32, is inevitably less than the number of the installation holes 31 with the diameter of 9mm, so as to ensure the uniformity of the number of the mold inserts 50 of each model, which are installed on the loader 30, as much as possible, the installation holes 31 with the diameter of 15mm are set into two groups, the installation holes 31 with the diameter of 9mm are set into one group, the installation holes 31 with the diameter of 12mm are set into one group, and four groups of the installation holes 31 are respectively arranged at the edges of the loader 30.

Referring to fig. 5, in some embodiments, the screw member 40 includes a threaded hole 41 and a threaded rod 42, the threaded hole 41 opening on the carrier member 30 and communicating with the mounting hole 31; the threaded rod 42 is in threaded fit with the threaded hole 41 and abuts against the mold core 50 in the mounting hole 31, so that the mold core 50 abuts against the wall of the mounting hole 31.

The thread form, pitch, number of threads, and direction of rotation of the threaded hole 41 are not limited in this embodiment; the diameter of the threaded hole 41 can be set arbitrarily, but considering the processing difficulty of the threaded hole 41 and the contact area between the peripheral wall of the die core 50 and the wall of the mounting hole 31, the diameter of the threaded hole 41 should be smaller than the diameter of the mounting hole; the threaded hole 41 can be opened at any position of the loading member 30, and no matter the mounting hole 31 is set as a blind hole or a through hole, or only set on the top plate 32 or set on the top plate 32 and the bottom plate 33 at the same time, the threaded hole 41 only needs to ensure that it can be communicated with the mounting hole 31, and can be matched with the threaded rod 42 to enable the threaded rod 42 to abut against the mold core 50, so that the mold core 50 can abut against the hole wall of the mounting hole 31.

The thread form, thread pitch, thread number, and thread direction of the corresponding threaded hole 41 of the threaded rod 42 are not limited in this embodiment, the length of the threaded rod 42 may be shorter than the depth of the threaded hole 41, the threaded rod 42 may be, for example, an inner hexagon headless screw or a slotted headless screw, the length of the threaded rod 42 may also be longer than the depth of the threaded hole 41, and the threaded rod 42 may be, for example, an outer hexagon screw or a round head inner hexagon screw.

In some embodiments, the central axis of the mounting hole 31 is perpendicular to the central axis of the threaded hole 41, and after the mold core 50 is mounted in the mounting hole 31, the mold core 50 is coaxial with the mounting hole 31, so that after the threaded rod 42 penetrates through the threaded hole 41 and abuts against the mold core 50, the threaded rod 42 applies an acting force perpendicular to the central axis of the mold core 50 to the mold core 50 in the mounting hole 31, further, along the axial direction of the mounting hole 31, the threaded hole 41 is communicated with the axial central position of the mounting hole 31, so that the overall stress of the mold core 50 is balanced, and the parallelism of the axis of the mold core 50 and the axis of the mounting hole 31 is ensured.

In some embodiments, the end of the threaded rod 42 abutting against the insert 50 is provided with a protection member, which may be configured in any shape, such as a rectangular parallelepiped, a sphere, or a cylinder; the protection member is used for preventing the die core 50 from being damaged by the top of the threaded rod 42, the hardness of the material selected for the protection member should be lower than that of the die core 50, and the hardness of the material selected for the die core 50 as the core of the die is often very high, such as P20, 738H, 718H, NAK80, 2316A, S136 and the like, so that the protection member can be made of more materials, such as metal with low hardness, hard rubber or soft rubber and the like, but considering that the die core processing jig is repeatedly used for many times, the protection member should be made of a material capable of generating elastic deformation so that the protection member can be repeatedly used for many times, such as foamed silica gel or POE plastic and the like; in this embodiment, the threaded rod 42 is a hexagon socket soft-top flat-head screw, and the screw end of the hexagon socket soft-top flat-head screw is provided with a plastic gasket.

In some embodiments, the orthographic projection of the bottom plate 33 on the top plate 32 is located in the area of the top plate 32, and the mounting hole 31 opened on the top plate 32 is located outside the orthographic projection of the bottom plate 33, that is, along the axial direction of the loading member 30, the size of the bottom plate 33 is smaller than that of the top plate 32, the mounting hole 31 is opened only on the top plate 32 and located at the edge of the top plate 32, and in combination with the above-mentioned rectangular arrangement of the top plate 32 and the bottom plate 33, the entire mold core processing jig is in the shape of an inverted "convex" and the mounting hole 31 is located at the edge of the top plate 32, so that the required depth of the threaded hole 41 is reduced, and the processing of the threaded hole 41 is facilitated.

In some embodiments, the hole diameters of the plurality of mounting holes 31 located on the same edge of the top plate 32 are the same and are arranged at equal intervals, a plurality of groups of mounting holes 31 are arranged in combination, the hole diameters of the groups of mounting holes 31 are different, the diameters of the mounting holes 31 in each group of mounting holes 31 are the same, that is, the same group of mounting holes 31 are arranged at one edge of the top plate 32, and the plurality of groups of mounting holes 31 are respectively arranged at each edge of the top plate 32.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it is to be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the above terms may be understood by those skilled in the art according to specific situations.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.

Claims (10)

1. A mold core processing jig is characterized by comprising:

the loading piece is provided with at least one mounting hole, and the mounting hole is used for sleeving the mold core;

and the threaded part is connected with the loading part and is used for abutting the die core against the wall of the mounting hole.

2. The mold core processing jig according to claim 1, wherein the hole diameter D1 of the mounting hole is larger than the mold core diameter D2 inserted into the mounting hole, the difference between the hole diameter D1 and the mold core diameter D2 is D, and the difference D satisfies: d is more than or equal to 0.02mm and less than or equal to 0.04 mm.

3. The mold insert processing jig according to claim 1, wherein the plurality of sets of mounting holes are provided, each set of mounting holes includes at least one mounting hole, diameters of the mounting holes of the respective sets are different, and diameters of the mounting holes of the respective sets of mounting holes are different.

4. The mold insert processing jig of claim 1, wherein the threaded member comprises:

the threaded hole is formed in the loading piece and communicated with the mounting hole;

the threaded hole is in threaded fit with the threaded hole and is abutted against the die core in the mounting hole so as to enable the die core to be abutted against the wall of the mounting hole.

5. The mold insert processing jig according to claim 4, wherein a central axis of the mounting hole is perpendicular to a central axis of the threaded hole.

6. The mold insert processing jig according to claim 4, wherein a protection member is provided at an end of the threaded rod abutting against the mold insert.

7. The mold insert processing jig according to claim 4, wherein the diameter of the threaded hole is smaller than the diameter of the mounting hole.

8. The mold insert processing jig according to any one of claims 1 to 7, wherein the loading member comprises:

a top plate;

the bottom plate and the top plate are stacked and fixedly connected;

the top plate is provided with the mounting holes independently, the mounting holes are blind holes or through holes penetrating through the top plate, or the top plate and the bottom plate are provided with the mounting holes, the mounting holes penetrate through the top plate and the bottom plate, and the mounting holes are blind holes or through holes penetrating through the bottom plate.

9. The mold insert processing jig of claim 8, wherein an orthogonal projection of the bottom plate on the top plate is located in an area where the top plate is located, and the mounting hole provided on the top plate is located outside the orthogonal projection of the bottom plate.

10. The mold insert processing jig of claim 9, wherein the holes of the plurality of mounting holes located at the same edge of the top plate have the same diameter and are disposed at equal intervals.

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