CN112705907A - Manufacturing method and manufacturing device of prefabricated part connecting sleeve - Google Patents
Manufacturing method and manufacturing device of prefabricated part connecting sleeve Download PDFInfo
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- CN112705907A CN112705907A CN201911015419.3A CN201911015419A CN112705907A CN 112705907 A CN112705907 A CN 112705907A CN 201911015419 A CN201911015419 A CN 201911015419A CN 112705907 A CN112705907 A CN 112705907A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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Abstract
The invention discloses a method for manufacturing a prefabricated part connecting sleeve, which comprises the following steps: a step of processing large holes, which is to punch the workpiece to form large holes of the workpiece, wherein the axial direction of the workpiece is superposed with the punching direction to obtain a long thin-walled cylinder; and a small hole processing step, namely processing the bottom of the long thin-wall cylinder to form a small hole communicated with the large hole, wherein the central line of the large hole is superposed with the central line of the small hole to obtain a connecting sleeve body with the large hole of the large hole diameter section and the small hole of the small hole diameter section, and obtaining a finished product through subsequent processes. In the manufacturing process of the connecting sleeve, the large hole is obtained by deforming the workpiece, and no blank is removed; the small holes can be processed by punching, turning, milling and the like, and only a small amount of waste is generated; therefore, the workpiece blank is fully utilized, and the aim of reducing the raw material cost of the connecting sleeve is fulfilled.
Description
Technical Field
The invention relates to the technical field of building concrete prefabricated parts, in particular to a manufacturing method and a manufacturing device of a prefabricated part connecting sleeve.
Background
With the development of connection technology between prefabricated elements (e.g. prefabricated piles, beams, columns, plates, etc.), connectors are now available that can be directly plugged without welding. The connecting piece comprises a plug assembly and a slot assembly, wherein the plug assembly and the slot assembly are respectively fixed on two prefabricated parts which are butted, and the plug assembly is inserted and fixed in the slot assembly during butting, so that the connection of the two prefabricated parts is realized. The connecting sleeve is an important element applied to the plug assembly or the slot assembly and is provided with a large-aperture section and a small-aperture section which are communicated, a large aperture of the large-aperture section is used for installing an inserted bar of the plug assembly or a buckling barrel (which can be of an integral or split structure) of the slot assembly, a small aperture of the small-aperture section penetrates through a main stress rib of a prefabricated component, and a main stress rib pier head blocking part is formed at the joint of the large aperture of the large-aperture section and the small aperture of the small-aperture section. When the prefabricated part is manufactured, the connecting sleeve and the main stress rib are assembled, concrete is poured or pumped, the connecting sleeve is pre-embedded and fixed at the end of the prefabricated part after solidification, and an inner hole of the large-aperture section of the connecting sleeve is in an open state, so that the prefabricated part is obtained. When the prefabricated parts are butted, the insertion rods or the buckling cylinders are arranged in the corresponding parts, so that the two prefabricated parts can be butted by clamping the insertion rods in the buckling cylinders. The connecting sleeve plays a role of connecting and locking a main stress rib of the prefabricated part and a buckling barrel of an inserted link or a slot assembly of the plug assembly in the prefabricated part connecting piece, and is an essential important element in the mechanical connecting piece.
The connecting sleeve is generally of an integral metal structure, and the material cost is relatively high. The existing connecting sleeve processing method is turning or milling, namely, a large-aperture section large aperture and a small-aperture section small aperture are formed by fixing a workpiece, rotating a cutter or fixing the cutter and rotating the workpiece, so that a long thin-wall type cylinder is formed, and a finished product is obtained after subsequent processes (such as internal thread turning, surface treatment and the like). During turning or milling, a large amount of raw materials inside the workpiece are removed by cutting, and the waste formed by the removal of the raw materials accounts for more than 60% of the raw materials of the workpiece, so that the utilization rate of the raw materials is low, and the raw material cost of the connecting sleeve is greatly increased. Therefore, there is a need to propose a new manufacturing method for a connection sleeve to alleviate the above problems.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a method for manufacturing a prefabricated coupling sleeve, which can reduce the generation of waste materials to a large extent, and can reduce the cost of the raw material of the coupling sleeve.
Another object of the present invention is to provide a manufacturing apparatus of a prefabricated member coupling sleeve.
In order to realize the purpose of the invention, the invention adopts the following technical scheme:
a method of manufacturing a prefabricated component connecting sleeve, comprising: a large hole processing step and a small hole processing step, wherein:
a step of processing large holes, which is to punch the workpiece to form large holes of the workpiece, wherein the axial direction of the workpiece is superposed with the punching direction to obtain a long thin-walled cylinder;
and a small hole processing step, namely processing the bottom of the long thin-wall cylinder to form a small hole communicated with the large hole, wherein the central line of the large hole is superposed with the central line of the small hole to obtain a connecting sleeve body with the large hole of the large hole diameter section and the small hole of the small hole diameter section, and obtaining a finished product through subsequent processes.
Further, the method also comprises surface smoothing treatment before the step of processing the large holes, wherein the upper end surface, the lower end surface and the peripheral side surface of the workpiece blank are subjected to smoothing treatment to obtain the workpiece with a smooth and flat surface.
Further, in the large hole processing step, the center of the upper end face of the workpiece is axially punched to form a first groove, and the center of the lower end face of the workpiece is axially punched to form a second groove.
Further, in the step of processing the large hole, the first groove is continuously axially punched, so that the depth of the first groove is continuously deepened to form a large hole of a large-aperture section, and the long thin-wall type cylinder is obtained.
And further, the method also comprises the step of smoothing the end surface after the step of processing the large hole, wherein an axial end surface of the long thin-walled cylinder is smoothed, and the axial end surface is close to the large hole diameter section.
And further, chamfering processing treatment is carried out after the step of processing the large hole, and a chamfer is processed on the peripheral side of the bottom of the long thin-walled cylinder, so that a clamping part is formed.
And further, a thread processing step is included after the large hole processing step, and internal threads are processed on the inner wall of the large hole diameter section of the long thin-walled cylinder body to obtain the long thin-walled cylinder body with the internal threads.
A manufacturing installation of prefabricated component connecting sleeve, including large hole processing organization and small hole processing organization, the processing organization station of the small hole is located the downstream of the processing organization station of the large hole, wherein, the said large hole processing organization includes the large hole punching head and large hole punching die, the movement direction of the large hole punching head coincides with axis of the large hole punching die, the large hole punching die has cavity to pack into the work piece, in order to form the outline of the thin-walled sleeve of the long body, the large hole punching head has appearance to form large hole of the large hole diameter section; the small hole machining mechanism is used for forming small holes in small-diameter sections.
The surface smooth machining mechanism station is positioned at the upstream of the large hole machining mechanism station, and the end smooth machining mechanism station, the chamfer machining mechanism station and the thread machining mechanism station are positioned at the downstream of the large hole machining mechanism station, wherein the large hole punching head is a first cold heading head, the large hole punching die is a first cold heading die, the surface smooth machining mechanism is provided with a second cold heading head and a second heading die, the action direction of the second cold heading head is superposed with the axis of the second heading die, and the second heading die is provided with an inner cavity filled with a workpiece blank so as to form the outer contour of the workpiece; the end face upsetting processing mechanism is provided with a third cold upsetting head and a third upsetting die, the action direction of the third cold upsetting head is parallel to the axis of the third upsetting die, and the second upsetting die is provided with an inner cavity filled with the long thin-walled sleeve to prevent the outer contour of the long thin-walled sleeve from deforming.
The control system is electrically connected with corresponding driving mechanisms of the first cold heading, the first upsetting die, the second cold heading, the second upsetting die, the third cold heading and the third upsetting die, so that the corresponding driving mechanisms of the first cold heading, the first upsetting die, the second cold heading, the second upsetting die, the third cold heading and the third upsetting die drive the first cold heading, the first upsetting die, the second cold heading, the second upsetting die, the third cold heading and the third upsetting die to work according to a control signal output by the control system.
Compared with the prior art, the manufacturing method of the embodiment of the invention adopts the punching to form the large holes of the large-aperture section, the large holes are obtained by deforming the blank of the workpiece, and the blank is not removed; the small holes can be processed by punching, turning, milling and the like, and only a small amount of waste is generated; therefore, the workpiece blank is fully utilized, and the aim of reducing the raw material cost of the connecting sleeve is fulfilled.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
FIG. 1 is a schematic flow chart illustrating a method of manufacturing a prefabricated component connection sleeve according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of a workpiece in one direction according to the present invention;
FIG. 3 is a schematic cross-sectional view of a workpiece after axial stamping of the workpiece in accordance with the present invention;
FIG. 4 is a schematic view of the long thin-walled cylinder of the present invention in a three-dimensional configuration in one direction;
FIG. 5 is a schematic cross-sectional view of the elongated thin-walled cylinder of FIG. 4 along the direction A-A;
FIG. 6 is a schematic cross-sectional view of the body of the nut socket of the present invention;
FIG. 7 is a perspective view of the nut-socket body of the present invention in one direction;
FIG. 8 is a perspective view in one direction of the finished nut sleeve of the present invention;
FIG. 9 is a schematic sectional view of the finished nut-socket of FIG. 8 taken along the line B-B;
FIG. 10 is a schematic flow chart illustrating a method of manufacturing a prefabricated component coupling sleeve according to another embodiment of the present invention;
FIG. 11 is a schematic view of the stations of the apparatus for manufacturing prefabricated component connecting sleeves according to the present invention;
FIG. 12 is a partial schematic structural view of a process of forming large holes by processing a large hole processing mechanism.
In the drawings:
1. a workpiece; 11. a first arc surface; 12. a lower end face; 13. a peripheral side surface; 14. a second arc surface; 15. an upper end surface;
2. a nut sleeve prototype; 21. a first groove; 22. a second groove;
3. a long thin-walled cylinder; 32. a first choke portion; 33. a second choke portion; 35. a thin-walled portion; 36. chamfering;
4. a nut socket body; 41. the small aperture section is small;
5. connecting the sleeve finished product;
6. a macro-porous processing mechanism; 61. a large-hole punching head; 62. a large-hole punching die; 621. an inner cavity;
10. a large pore diameter section; 101. the large aperture section is large; 1011. an internal thread; a 20 small aperture section;
Detailed Description
The technical solutions of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments, it should be understood that these embodiments are merely illustrative of the present invention and are not intended to limit the scope of the present invention, and various equivalent modifications of the present invention by those skilled in the art after reading the present invention fall within the scope of the appended claims.
Referring to fig. 8 and 9, a prefabricated part connecting sleeve is substantially cylindrical and comprises a large-aperture section 10 and a small-aperture section 20, the large-aperture section 10 and the small-aperture section 20 are arranged in a communicating manner, the large-aperture section 10 is provided with a large aperture 101, an internal thread 1011 is formed on the inner wall of the large aperture 101, a first necking portion 32 is formed at the lower end of the large aperture 101, the first necking portion 32 is substantially in a conical depression shape, the first necking portion 32 can be clamped with a stress bar with a pier head at the end portion so as to be connected with a main stress bar of a prefabricated part, the small-aperture section 20 is provided with a small aperture 41, the stress bar can penetrate through the small aperture 41, and the small aperture 41 is arranged in a communicating manner with the large aperture.
The small aperture section 20 includes a second choke portion 33, the second choke portion 33 is substantially in a conical recessed shape, an opening of the second choke portion is located at the bottom of the connecting sleeve, an inner diameter of the second choke portion gradually decreases from an opening of the second choke portion 32 to a lower end of the small aperture 41 along an axial direction of the second choke portion 33, and the first choke portion 32 and the second choke portion 33 are communicated through the small aperture 41.
Example 1
The embodiment is a nut sleeve provided with an internal thread, which is called nut sleeve for short, the inserted rod or the buckling barrel of the prefabricated part can be fixed in the nut sleeve in a threaded manner, and the installation is very convenient.
A method for manufacturing a prefabricated member connecting sleeve comprises the following steps: a step of processing large holes, which is to punch the workpiece to form large holes of the workpiece, wherein the axial direction of the workpiece is superposed with the punching direction to obtain a long thin-walled cylinder; and a small hole processing step, namely processing the bottom of the long thin-wall cylinder to form a small hole communicated with the large hole, wherein the center line of the large hole is superposed with the center line of the small hole to obtain a nut sleeve body with the large hole of the large hole diameter section and the small hole of the small hole diameter section, and obtaining a finished product through subsequent processes.
Before the connecting sleeve is machined and manufactured, required bar materials are selected according to actual requirements for blanking and cutting, the bar materials are fixed on an installation table, and the round steel bar materials can be cut by utilizing the existing cutting equipment according to the actual materials of the nut sleeve finished products to obtain workpiece blank materials. It should be noted that: because a small amount of waste is generated in the small hole processing step of the subsequent manufacturing process, the material weight of the workpiece blank cut in the blanking and cutting process is 1-15% more than that of the finished connecting sleeve. Of course, the existing round steel bar with the weight meeting the requirement of machining the nut sleeve can be selected, so that the blanking and cutting steps can be omitted, and the machining efficiency is improved.
As shown in fig. 1, fig. 1 is a schematic flow chart of a manufacturing method of a nut socket according to an embodiment of the present invention. The method comprises the steps of surface smoothing, large hole processing, small hole processing, chamfering, end face smoothing, thread processing and surface processing.
Specifically, the method comprises the following steps:
s11, smoothing the surface, namely after the workpiece blank is obtained, firstly smoothing the surface of the workpiece blank, and smoothing the upper end face, the lower end face and the peripheral side face of the workpiece blank to form a workpiece with a smooth and flat surface.
Specifically, referring to fig. 1 and 2, because a workpiece blank obtained by directly cutting a round steel bar stock by a cutting device or an existing segment-shaped round steel bar stock is selected, the surface of the workpiece blank is too rough and may affect the processing and forming of a subsequent nut sleeve, before the step of processing a large hole, a surface smoothing mechanism is used to smooth the surface of the workpiece blank obtained by cutting the blanking, and the surface smoothing mechanism is used to smooth the upper end surface, the lower end surface and the peripheral side surface of the workpiece blank, in this embodiment, the smoothing mode is an upsetting mode, and certainly, a grinding machine can be used to smooth the surface by grinding and the like, so that a first arc surface 11 is formed at the bottom of the workpiece blank, and the first arc surface 11 is respectively connected with the lower end surface 12 of the workpiece blank and the peripheral side surface 13 of the workpiece blank; a second cambered surface 14 is formed at the top of the workpiece blank, and the second cambered surface 14 is respectively connected with the upper end surface 15 of the workpiece blank and the peripheral side surface 13 of the workpiece blank; thus, the workpiece 1 having a smooth, flat, and cylindrical surface can be obtained through the step S11.
S12, a large hole processing step, namely stamping the workpiece blank to form a large hole of the workpiece, wherein the axial direction of the workpiece blank is superposed with the stamping direction to obtain the long thin-wall cylinder.
In the step of processing the large hole, referring to fig. 2 to 5 for the structure of the workpiece and the product to be formed, the workpiece is axially punched to form the large hole of the workpiece, wherein the axial direction of the workpiece coincides with the punching direction, so as to obtain the long thin-walled cylinder, and the long thin-walled cylinder can be further processed to form the small hole with the small diameter section, so that the required finished product can be obtained after the processes of tapping, surface treatment and the like. .
Specifically, the workpiece blank is subjected to surface smoothing treatment to obtain a workpiece, axial stamping is carried out on the workpiece blank, the center of the upper end face of the workpiece is axially stamped to form a first groove, the center of the lower end face of the workpiece is axially stamped to form a second groove, and then the first groove is continuously axially stamped to form the long thin-walled cylinder with the large hole.
More specifically, referring to fig. 3, axial punching is performed at the center of the upper end surface of the workpiece to form a first groove 21, and at the same time, axial punching is performed at the center of the lower end surface of the workpiece to form a second groove 22, resulting in a nut-sleeve blank 2; thus, the workpiece is subjected to end face axial stamping in advance to form a first groove 21; the method is prepared for processing the large hole of the large hole diameter section in advance, can be favorable for axial punching of the large hole diameter section, and is favorable for reducing the possibility of deviation when a workpiece is directly subjected to axial punching by a large hole processing mechanism to form the large hole diameter section.
Referring to fig. 4, a large hole processing mechanism (specifically, a punch, which may be a cold header) is used to further axially punch along the first groove, and the depth of the first groove is continuously deepened to form a large hole 101 of the large hole diameter section; and further axially punching the second groove by using a large hole machining mechanism to form a second necking part so as to obtain the long thin-wall cylinder with the large hole diameter section large hole 101 and the second necking part, wherein the depth of the large hole diameter section large hole 101 is smaller than the height of the long thin-wall cylinder, the height of the long thin-wall cylinder is larger than the height of a workpiece, a first necking part is formed at the bottom of the large hole, and a thin wall part 35 is formed between the bottom of the first necking part and the bottom of the second necking part. Therefore, the thin wall part is prepared for processing the small hole in advance, the resistance of the long thin-wall cylinder to the small hole processing mechanism during small hole processing can be relieved, and the small hole processing mechanism can be conveniently used for processing the bottom of the large hole section to form the small hole of the small hole diameter section. When the large hole processing mechanism is used for axially punching a workpiece, the action direction of a large hole punching head of the large hole processing mechanism is superposed with the axis of a large hole punching die of the large hole processing mechanism, so that the coaxiality of a large hole and the workpiece can be ensured, and the processing precision of the nut sleeve is further improved.
S13, a small hole processing step, namely processing the bottom of the long thin-walled cylinder to form a small hole communicated with the large hole, wherein the center line of the large hole is superposed with the center line of the small hole to obtain a nut sleeve body with the large hole of the large hole diameter section and the small hole of the small hole diameter section, and obtaining a finished product through subsequent processes.
In the small hole changing processing step, the small hole processing step is positioned after the large hole processing step, the bottom of a large hole section of the long thin-wall cylinder is processed to form a small hole with small hole diameter, and the nut sleeve body 4 with the large hole of the large hole diameter section and the small hole of the small hole diameter section is obtained. The nut sleeve body 4 can obtain a finished product with corresponding specification after subsequent procedures such as large hole section large hole tapping, surface treatment and the like.
Specifically, referring to fig. 5 and 6, in the punching step, a small hole processing mechanism is used to process a small hole of the long thin-walled cylinder, in this embodiment, a punching die is used to punch a through hole in a thin-walled portion at the center of the bottom of a large hole diameter section of the long thin-walled cylinder, a small hole 41 of a small hole diameter section is formed at the bottom of the long thin-walled cylinder, and the small hole of the small hole diameter section and the large hole of the large hole diameter section are communicated; it can be known that, when the blanking die is used for punching the long thin-walled cylinder, the central line of the blanking die is superposed with the central line of the large aperture, so that the coaxiality of the small aperture, the first necking part, the second necking part and the large aperture can be ensured, and the processing precision of the nut sleeve is further improved. It is understood that the small-bore section bores may also be formed by turning or milling.
S14, chamfering, namely processing the peripheral side of the bottom of the long thin-walled cylinder to form a chamfer so as to form a clamping part.
Specifically, referring to fig. 7, after the large hole of the large hole diameter section is formed, the peripheral side of the bottom of the long thin-walled cylinder is processed to form chamfers 36, the number of the chamfers is more than or equal to three, the chamfers are uniformly distributed on the peripheral side of the bottom of the long thin-walled cylinder, and the chamfers form a clamping part of the long thin-walled cylinder, so that the nut sleeve can be conveniently clamped during use.
S15, end face smoothing, namely upsetting an axial end face of the long thin-walled cylinder, wherein the axial end face is close to the large-aperture section.
The end surface smoothing step is located after the large hole processing step, because the long thin-walled cylinder is formed by axially punching a workpiece for multiple times through the processing mechanism, and the flatness of the axial end surface of the long thin-walled cylinder can be influenced in the process of axially punching the long thin-walled cylinder to form the long thin-walled cylinder, an axial end surface of the long thin-walled cylinder needs to be smoothed, the axial end surface is close to the large hole diameter section, and thus the nut sleeve body 4 with the smooth end surface of the large hole diameter section large hole 101 is formed, and therefore, the processing precision of the nut sleeve is favorably improved, and the subsequent use is favorably realized.
And S16, a thread processing step, wherein after the thread processing step is positioned in the large hole processing step, the large hole diameter section of the nut sleeve body is processed to form an internal thread, and a nut sleeve finished product is obtained.
In order to install the inserted link or the buckle barrel of the mechanical connector, the nut sleeve body needs to be threaded, so that the inserted link or the buckle barrel can be conveniently screwed in. Referring to fig. 8 and 9, the large-bore section of the long thin-walled cylinder is processed to form an internal thread, so as to obtain a finished nut sleeve 5 with the internal thread.
Specifically, in the thread processing step, a thread processing mechanism is utilized to process the inner wall of a large hole diameter section of the long thin-walled cylinder body to form an internal thread 1011, so as to obtain a nut sleeve finished product 5 with the internal thread, wherein the action direction of the thread processing mechanism is coincident with the central line of the large hole diameter section, and the inner wall of the large hole diameter section is extruded through an extrusion die of the thread processing mechanism to form the internal thread 1011; thus, the utilization rate of the nut socket material can be further improved. It is understood that the internal thread may be formed by turning or milling.
S17, performing surface treatment, namely performing heat treatment and/or surface chemical treatment on the surface of the finished nut sleeve to form a protective layer on the surface of the nut sleeve.
In the present embodiment, the surface treatment step is the last step of the manufacturing method, and the finished nut-socket 5 obtained after the processing in the preceding step is subjected to surface heat treatment and/or surface chemical treatment to form a protective layer on the surface of the nut-socket. Therefore, the rust resistance and the corrosion resistance of the nut sleeve are improved, and the service life of the nut sleeve is prolonged.
It should be noted that: the order of step S13, step S14, step S15, and step S16 may be adjusted without being affected by the order.
Compared with the prior art in which large holes are formed by turning, milling and the like, the large holes in the workpiece are required to be cut and removed, and a large amount of waste materials are generated; the small holes can be processed by punching, turning, milling and the like, and only a small amount of waste is generated; therefore, the workpiece blank is fully utilized, and the aim of reducing the raw material cost of the nut sleeve is fulfilled.
Example 2
In the embodiment, the manufacturing process of the connecting sleeve without the internal thread is aimed at, the same parts as the embodiment 1 are given the same reference numerals, and the same text descriptions are omitted.
Fig. 10 is a flow chart illustrating a method for manufacturing a prefabricated part connecting sleeve according to another embodiment of the present invention, as shown in fig. 10.
The main difference between this embodiment and embodiment 1 is that, in this technical scheme, the method for manufacturing a prefabricated component connecting sleeve may not include a step of thread processing, and the connecting sleeve formed by processing may be butted with other components in a manner of clamping, and at this time, a clamping table may be manufactured in the connecting sleeve according to the existing process, and the end of the insert rod or the buckle may be manufactured with an elastic card, which is not described in detail.
It should be noted that: the sequence of step S23, step S24, and step S25 can be adjusted without being affected by the sequence.
Compared with the prior art in which large holes are formed by turning, milling and the like, the large holes in the workpiece are required to be cut and removed, and a large amount of waste materials are generated; the small holes can be processed by punching, turning, milling and the like, and only a small amount of waste is generated; therefore, the workpiece blank is fully utilized, and the aim of reducing the raw material cost of the connecting sleeve is fulfilled.
On the basis of the above-mentioned method for manufacturing a connection sleeve, the present invention further provides a manufacturing apparatus for manufacturing a connection sleeve, as described below.
Referring to fig. 11, a structure diagram of each station of a device for manufacturing a prefabricated member connecting sleeve is schematically disclosed, which is used for manufacturing the connecting sleeve and comprises a frame, a surface smoothing mechanism, a large hole processing mechanism, a small hole processing mechanism, an end surface smoothing mechanism, a chamfering mechanism, a thread processing mechanism and corresponding driving mechanisms of the processing mechanisms, wherein the surface smoothing mechanism, the large hole processing mechanism, the small hole processing mechanism, the end surface smoothing mechanism, the chamfering mechanism and the thread processing mechanism are arranged on the frame, all the driving mechanisms are electrically connected with a control system, and the driving mechanisms drive the surface smoothing mechanism, the large hole processing mechanism, the small hole processing mechanism, the end surface smoothing mechanism, the chamfering mechanism and the thread processing mechanism to operate according to control.
In the mechanism, the surface smoothing machining mechanism station is positioned at the upstream of the large hole machining mechanism station, and the end surface smoothing machining mechanism station, the chamfering machining mechanism station and the thread machining mechanism station are positioned at the downstream of the large hole machining mechanism station, so that related procedures can be conveniently executed to improve the production efficiency.
The large hole processing mechanism and the small hole processing mechanism in the mechanism are basic mechanisms, wherein: the large hole processing mechanism is a punching device and comprises a large hole punching head and a large hole punching die, the action direction of the large hole punching head is coincided with the axis of the large hole punching die, the large hole punching die is provided with an inner cavity for loading a workpiece so as to form the outer contour of the long thin-wall sleeve, and the large hole punching head is provided with an appearance for forming a large hole of a large hole diameter section so as to form an inner hole of the large hole diameter section of a product; the small hole machining mechanism is used for forming small holes of small-bore sections and can be a punching device, a turning device or a milling device so as to form inner holes of the small-bore sections of the products.
Here, the large hole processing mechanism may be a cold heading type stamping device, that is, the large hole stamping head may be a first cold heading head, and the large hole stamping die is a first cold heading die, which is further described with reference to fig. 12. As shown in fig. 12, fig. 12 is a partial structural schematic diagram of a process of forming a large hole by a large hole processing mechanism, the large hole processing mechanism 6 comprises a large hole punching head 61 and a large hole punching die 62, the action direction of the large hole punching head 61 coincides with the axis of the large hole punching die 62, the large hole punching die 62 is provided with an inner cavity 621 into which a workpiece is loaded so as to form the outer contour of the long thin-walled sleeve, and the large hole punching head 61 is provided with an outer shape forming a large hole of a large hole diameter section; thus, the inner hole of the large-aperture section of the product can be formed. The small hole processing mechanism is used for forming small holes of small-bore sections, and a cold heading type stamping device can be selected and used, and the cold heading type stamping device is specifically configured by referring to the large hole processing mechanism.
Likewise, a surface smoothing mechanism, an end surface smoothing mechanism, or the like may also employ a cold heading device, in which: the surface smoothing machining mechanism is provided with a second cold heading head and a second upsetting die, the action direction of the second cold heading head is superposed with the axis of the second upsetting die, and the second upsetting die is provided with an inner cavity for loading the workpiece so as to form the outer contour of the workpiece; the end surface smoothing machining mechanism is provided with a third cold heading head and a third upsetting die, and the second upsetting die is provided with an inner cavity filled with the long thin-walled sleeve to prevent the outer contour of the long thin-walled sleeve from deforming.
The technical principles of the present invention have been described above in connection with specific embodiments, but it should be noted that the above descriptions are only for the purpose of explaining the principles of the present invention, and should not be construed as specifically limiting the scope of the present invention in any way. Based on the explanations herein, those skilled in the art will appreciate that other embodiments of the present invention or equivalents thereof without inventive step, are also within the scope of the present invention.
Claims (10)
1. A method of manufacturing a prefabricated component connecting sleeve, comprising: a large hole processing step and a small hole processing step, wherein:
a step of processing large holes, which is to punch the workpiece to form large holes of the workpiece, wherein the axial direction of the workpiece is superposed with the punching direction to obtain a long thin-walled cylinder;
and a small hole processing step, namely processing the bottom of the long thin-wall cylinder to form a small hole communicated with the large hole, wherein the central line of the large hole is superposed with the central line of the small hole to obtain a connecting sleeve body with the large hole of the large hole diameter section and the small hole of the small hole diameter section, and obtaining a finished product through subsequent processes.
2. The method of manufacturing a prefabricated component connecting sleeve according to claim 1, further comprising a surface smoothing step before the step of processing the large holes, wherein the upper end surface, the lower end surface and the peripheral side surface of the workpiece blank are smoothed to obtain a workpiece having a smooth and flat surface.
3. The method for manufacturing a prefabricated member connecting sleeve according to claim 1, wherein in the large hole processing step, a first groove is formed by axially punching a center of an upper end surface of the workpiece, and a second groove is formed by axially punching a center of a lower end surface of the workpiece.
4. The method for manufacturing a prefabricated member connecting sleeve according to claim 3, wherein in the step of processing the large hole, the first groove is continuously punched axially so that the depth of the first groove is continuously deepened to form the large hole of the large-hole-diameter section, thereby obtaining the long thin-wall type cylinder body.
5. The method for manufacturing a prefabricated member connecting sleeve according to claim 1, further comprising the step of smoothing an axial end surface of the long thin-walled cylinder after the step of processing the large hole, wherein the axial end surface is close to the large hole diameter section.
6. The method for manufacturing a prefabricated member connecting sleeve according to claim 1, further comprising a chamfering processing step after the large hole processing step, wherein the peripheral side of the bottom of the long thin-walled cylinder is processed to form a chamfer, thereby forming the clamping portion.
7. The method for manufacturing the prefabricated part connecting sleeve according to claim 1, further comprising a thread processing step after the large hole processing step, wherein an internal thread is processed on the inner wall of a large hole of the large hole diameter section of the long thin-wall type cylinder body to obtain a finished connecting sleeve with the internal thread.
8. A manufacturing installation of prefabricated component connecting sleeve, characterized by, including large hole processing organization and small hole processing organization, the processing organization station of the small hole is located downstream of the processing organization station of the large hole, wherein, the said large hole processing organization includes the large hole punching head and large hole punching die, the movement direction of the large hole punching head coincides with axis of the large hole punching die, the large hole punching die has cavity to pack into the work piece, in order to form the outline of the thin-walled sleeve of the long body, the large hole punching head has appearance forming large hole of the large aperture section; the small hole machining mechanism is used for forming small holes in small-diameter sections.
9. The manufacturing apparatus of a connecting sleeve according to claim 8, further comprising a surface smoothing mechanism, an end surface smoothing mechanism, a chamfering mechanism, and a threading mechanism, wherein the surface smoothing mechanism station is located upstream of the large hole machining mechanism station, and the end surface smoothing mechanism station, the chamfering mechanism station, and the threading mechanism station are located downstream of the large hole machining mechanism station, wherein the large hole punch is a first cold heading, the large hole punch is a first cold heading die, the surface smoothing mechanism has a second cold heading and a second heading die, the direction of motion of the second cold heading coincides with the axis of the second heading die, and the second heading die has an inner cavity into which a workpiece blank is loaded so as to form the outer contour of the workpiece; the end face upsetting processing mechanism is provided with a third cold upsetting head and a third upsetting die, the action direction of the third cold upsetting head is parallel to the axis of the third upsetting die, and the second upsetting die is provided with an inner cavity filled with the long thin-walled sleeve to prevent the outer contour of the long thin-walled sleeve from deforming.
10. The apparatus for manufacturing a connecting sleeve according to claim 9, further comprising a frame, wherein the first cold heading, the first upsetting die, the second cold heading, the second upsetting die, the third cold heading and the third upsetting die are fixedly disposed with the frame, and the control system is electrically connected to the respective driving mechanisms of the first cold heading, the first upsetting die, the second cold heading, the second upsetting die, the third cold heading and the third upsetting die, so that the respective driving mechanisms of the first cold heading, the first upsetting die, the second cold heading, the second upsetting die, the third cold heading and the third upsetting die drive the first cold heading, the first upsetting die, the second cold heading, the second upsetting die, the third cold heading and the third upsetting die to operate according to the control signal outputted from the control system.
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| CN201911015419.3A CN112705907A (en) | 2019-10-24 | 2019-10-24 | Manufacturing method and manufacturing device of prefabricated part connecting sleeve |
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| CN201911015419.3A CN112705907A (en) | 2019-10-24 | 2019-10-24 | Manufacturing method and manufacturing device of prefabricated part connecting sleeve |
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