Automatic screw machining device

Abstract

The utility model provides an automatic screw processing device, which relates to the field of screw processing and comprises a guide column, a support shell and an ejector rod. A base is welded to the bottom ends of the guide columns, a fixing plate is connected to the lower side face of the base through bolts, and an air cylinder is connected to the lower side face of the fixing plate through bolts. The lower side face of the supporting shell is connected with a base through bolts. A sliding plate is welded to the top end of the push-pull rod, a connecting rod is hinged to the upper side face of the sliding plate, the top end of the connecting rod is hinged to the bottom end of a clamping sliding block, and the upper side face of the clamping sliding block is connected with a lower die through a bolt. The lower side face of the ejector rod is welded to the upper side face of the sliding plate. Through the arrangement of the sliding plate, the connecting rod, the clamping sliding block, the sliding connecting rod and the ejector rod, automatic pulling-out work after a metal rod piece is extruded is achieved, the situation that a traditional screw blank is clamped in a lower die and cannot be pulled out is effectively avoided, and the problem that in traditional screw machining, manual pulling-out operation is inconvenient after a nut is extruded and forged, of the screw blank is solved.

Description

Technical Field

[0001] The utility model belongs to the field of screw processing, and more specifically, particularly relates to an automatic screw processing device. Background Art

[0002] Screw processing is a metal forming process that uses cutting, turning, milling, grinding and cold forging to manufacture various threaded parts. At present, screw processing mainly includes basic steps such as metal rod cutting, nut extrusion forging and thread structure grinding. Among them, the process of nut extrusion forging usually uses hydraulic equipment or flattening machine to extrude the metal rod inserted in the lower mold and form a nut structure. The extruded screw blank needs to be pulled out manually. However, after the metal rod is extruded in the lower mold, the rod structure expands, which often makes it difficult to pull the metal rod out of the hole in the lower mold. It can be seen that it is inconvenient to pull out the screw blank after the nut is extruded and forged in traditional screw processing. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides an automated screw processing device to solve the problem of inconvenient manual extraction of screw blanks after nut extrusion forging in traditional screw processing.

[0004] The utility model provides an automated screw processing device, comprising a support plate; the upper side surface of the support plate is connected to a hydraulic cylinder by bolts, the bottom end of the telescopic rod component of the hydraulic cylinder is equipped with a pressure plate, the lower side surface of the pressure plate is connected to an upper pressing mold by bolts, the lower side surface of the support plate is welded to a guide column, the bottom end of the guide column is welded to a base, the lower side surface of the base is connected to a fixed plate by bolts, and the lower side surface of the fixed plate is equipped with a cylinder by bolts; it also includes a support shell, a push-pull rod and a push rod; the lower side surface of the support shell is connected to the base by bolts; the bottom end of the push-pull rod is connected to the top end of the telescopic rod of the cylinder by bolts, the top end of the push-pull rod is welded to a slide plate, the upper side surface of the slide plate is hinged with a connecting rod, the top end of the connecting rod is hinged to the bottom end of the clamping slider, and the upper side surface of the clamping slider is connected to the lower mold by bolts; the lower side surface of the push rod is welded to the center position of the upper side surface of the slide plate.

[0005] In at least some embodiments, the support shell is a square box structure with an opening on the upper side, the front and rear sides of the support shell are provided with grooves, the lower side of the support shell is provided with a through hole, and the push-pull rod is inserted into the through hole of the support shell.

[0006] In at least some embodiments, there are two groups of clamping sliders, which are symmetrically distributed on the left and right sides. The front and rear sides of each group of clamping sliders are provided with threaded holes and convex plate structures from top to bottom, and the convex plate structures on the front and rear sides of the clamping sliders are embedded in the groove of the supporting shell.

[0007] In at least some embodiments, four corners of the pressure plate are provided with through holes that penetrate vertically, and four groups of guide posts are respectively inserted into the four groups of through holes of the pressure plate.

[0008] In at least some embodiments, there are two groups of lower molds, which are symmetrically distributed on the left and right sides. The opposite surfaces of the two groups of lower molds are provided with semi-cylindrical grooves with openings on the upper sides. The lower side surfaces of each group of lower molds are provided with grooves with openings on the left and right sides. The front and rear sides of the grooves are provided with through holes, and the through holes of the lower molds are connected to the threaded holes of the clamping slider.

[0009] In at least some embodiments, the base is an L-shaped folded plate structure, and a triangular support plate is provided on the inner side of the L-shaped folded plate of the base.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. In the utility model, the sliding connecting rod movement mechanism formed by the hinge connection of the slide plate, the connecting rod and the clamping slider is operated by driving the push-pull rod through the cylinder, so that the two groups of clamping sliders respectively drive the two groups of lower molds connected by the top bolts to automatically separate to the left and right, and the slide plate pushes the top rod welded and connected on the upper side to automatically push the screw blank out of the lower mold, thereby realizing the automatic extraction of the metal rod after extrusion, abandoning the traditional manual extraction of the screw blank, and avoiding the situation that the traditional screw blank is stuck in the lower mold and cannot be pulled out.

[0012] 2. In the utility model, the nested and interlaced structure of the guide columns at the through holes at the four corners of the pressure plate is utilized, so that the pressure plate can carry the upper pressure mold and slide along the guide column in a directional manner, so that the upper pressure mold can extrude the part of the metal rod that leaks out of the lower mold, thereby improving the accuracy of the extrusion docking between the upper pressure mold and the lower mold, and ensuring the accuracy of the nut structure after the metal rod is extruded. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a front view structural schematic diagram of the utility model.

[0015] Figure 3 It is a left-side structural schematic diagram of the utility model.

[0016] Figure 4 It is a schematic diagram of the structure of the utility model in an upward and side view.

[0017] Figure 5 It is a front view cross-sectional structural schematic diagram of the utility model.

[0018] Figure 6 It is a schematic diagram of the cutaway structure of the utility model.

[0019] Figure numerals: 1. hydraulic cylinder; 2. support plate; 3. pressure plate; 4. upper pressure mold; 5. guide column; 6. lower mold; 7. support shell; 8. base; 9. fixed plate; 10. cylinder; 11. slide plate; 12. push-pull rod; 13. clamping slide block; 14. connecting rod; 15. push rod. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0021] like Figure 1-Figure 6 As shown, the utility model provides an automated screw processing device, including a support plate 2; the upper side of the support plate 2 is connected to a hydraulic cylinder 1 by bolts, the bottom end of the telescopic rod component of the hydraulic cylinder 1 is installed with a pressing plate 3, the lower side of the pressing plate 3 is connected to an upper pressing mold 4 by bolts, the lower side of the support plate 2 is welded with a guide column 5, the bottom end of the guide column 5 is welded with a base 8, the lower side of the base 8 is connected to a fixing plate 9 by bolts, and the lower side of the fixing plate 9 is installed with a cylinder 10 by bolts; it also includes a support shell 7, a push-pull rod 12 and a push rod 15; the lower side of the support shell 7 is connected to the base 8 by bolts; the bottom end of the push-pull rod 12 is connected to the top of the telescopic rod of the cylinder 10 by bolts, the top of the push-pull rod 12 is welded with a slide plate 11, the upper side of the slide plate 11 is hinged with a connecting rod 14, the top of the connecting rod 14 is hinged to the bottom end of the clamping slider 13, and the upper side of the clamping slider 13 is connected to the lower mold 6 by bolts; the lower side of the push rod 15 is welded and connected to the center position of the upper side of the slide plate 11.

[0022] During the nut extrusion forging process in screw processing, the utility model inserts the metal rod into the circular hole slot formed by the semi-cylindrical grooves of the two groups of lower dies 6, and then the telescopic rod of the hydraulic cylinder 1 pushes the pressing plate 3 to slide vertically downward along the guide column 5, and the pressing plate 3 carries the upper pressing die 4 connected with the bottom bolt to move vertically downward quickly, and the upper pressing die 4 squeezes the top of the metal rod so that the top of the metal rod leaks out of the circular hole slot structure of the lower die 6 and is squeezed into a corresponding nut shape of the upper pressing die 4. After the extrusion is completed, the hydraulic cylinder 1 drives the pressing plate 3 carrying the upper pressing die 4 to retreat upward along the guide column 5, and then the cylinder 10 is started, and the telescopic rod of the cylinder 10 pushes the push-pull rod 12 to move upward, and the push-pull rod 12 pushes the slide plate 11 along the inner surface of the support shell 7. The wall moves upward, and the slide plate 11 pushes the two sets of hinged connecting rods 14 to flip left and right synchronously. The two sets of connecting rods 14 respectively drive the two sets of clamping sliders 13 to move left and right along the groove of the support shell 7. At this time, the slide plate 11 drives the push-pull rod 12 welded at the center position of the upper side to move vertically upward. The push-pull rod 12 passes through the gap between the two sets of clamping sliders 13 after separation to completely push the screw blank out of the semi-cylindrical groove structure of the two sets of lower molds 6, completing the automatic ejection and removal of the screw blank. After the screw blank is pulled out, the telescopic rod of the cylinder 10 retracts and drives the slide plate 11 welded to the top of the push-pull rod 12 to move downward, and the slide plate 11 drives the push rod 15 to retract, and the connecting rod 14 pulls the clamping slider 13 to make the two sets of lower molds 6 close again.

[0023] In the disclosed embodiment, the support shell 7 is a square box structure with an opening on the upper side, the front side and the rear side of the support shell 7 are provided with grooves, the lower side of the support shell 7 is provided with a through hole, the push-pull rod 12 is inserted into the through hole of the support shell 7, and the push-pull rod 12 drives the slide plate 11 inside the support shell 7 to complete the ejection work of the push rod 15 on the screw blank and the connection rod 14 pushes the lower mold 6 to loosen the screw blank.

[0024] In the disclosed embodiment, there are two groups of clamping sliders 13, which are symmetrically distributed on the left and right sides. The front side and rear side of each group of clamping sliders 13 are respectively provided with threaded holes and convex plate structures from top to bottom. The convex plate structures on the front side and rear side of the clamping sliders 13 are embedded in the groove of the support shell 7, so that the support shell 7 supports the clamping sliders 13 to slide left and right along the groove of the support shell 7, so as to drive the two groups of lower molds 6 to automatically separate in opposite directions to the left and right.

[0025] In the disclosed embodiment, the four corners of the pressing plate 3 are provided with through holes that pass through from top to bottom, and the four groups of guide columns 5 are respectively inserted into the four groups of through holes of the pressing plate 3, so that the pressing plate 3 can be moved in a directional manner along the guide columns 5 under the push of the hydraulic cylinder 1, so that the upper pressing die 4 can accurately and stably extrude the metal rod to form the nut structure of the bolt, thereby improving the structural accuracy of the extrusion molding of the cold forged parts.

[0026] In the disclosed embodiment, there are two groups of lower molds 6, and the lower molds 6 are symmetrically distributed on the left and right. The opposite surfaces of the two groups of lower molds 6 are provided with semi-cylindrical grooves with upper openings. The diameter of the semi-cylindrical grooves is made according to the cross-sectional diameter of the rod of the bolt. When the two groups of lower molds 6 are docked, the semi-cylindrical grooves of the lower molds 6 are assembled into round hole slots, and the metal rods used for processing the bolts can be inserted into the round hole slots assembled by the two groups of lower molds 6 for clamping and placement. The lower side surface of each group of lower molds 6 is provided with grooves with left and right openings, and the front and rear sides of the grooves are provided with through holes. The through holes of the lower mold 6 are docked at the threaded holes of the clamping slider 13, so that the lower mold 6 can be replaced and disassembled from the clamping slider 13 by tightening or loosening the bolts, so that the clamping slider 13 can install lower molds 6 with semi-cylindrical grooves of different diameters.

[0027] In the disclosed embodiment, the base 8 is an L-shaped folded plate structure, and a triangular support plate is provided inside the L-shaped folded plate of the base 8, so as to stably support the guide column 5 and the support shell 7 by utilizing the structural stability of the triangle.

[0028] The installation, connection or setting methods of all the above components are common mechanical methods, such as welding, threaded connection, screw connection, etc., and the specific structures, models and coefficient indicators of all its components are its own technology, and can be implemented as long as it can achieve its beneficial effects. The hydraulic cylinder 1 and the air cylinder 10 used above are common components on the market. When they are bought back and used, they can be used by connecting them according to the instruction manual purchased together, so they will not be repeated here.

[0029] The technical solution of the present invention is not limited to the scope of the embodiments of the present invention, and the technical contents not described in detail in the present invention are all well-known technologies.

Claims

1. An automated screw processing device, comprising a support plate (2); the upper side of the support plate (2) is connected to a hydraulic cylinder (1) by bolts, a pressing plate (3) is installed at the bottom end of the telescopic rod component of the hydraulic cylinder (1), the lower side of the pressing plate (3) is connected to an upper pressing mold (4) by bolts, the lower side of the support plate (2) is welded to a guide column (5), the bottom end of the guide column (5) is welded to a base (8), the lower side of the base (8) is connected to a fixing plate (9) by bolts, and the lower side of the fixing plate (9) is installed with a cylinder (10) by bolts; characterized in that: It also includes a support shell (7), a push-pull rod (12) and a push rod (15); the lower side of the support shell (7) is connected to the base (8) by bolts; the lower end of the push-pull rod (12) is connected to the top of the telescopic rod of the cylinder (10) by bolts, the top of the push-pull rod (12) is welded to a slide plate (11), the upper side of the slide plate (11) is hinged with a connecting rod (14), the top of the connecting rod (14) is hinged to the bottom end of a clamping slider (13), and the upper side of the clamping slider (13) is connected to a lower mold (6) by bolts; the lower side of the push rod (15) is welded to the center position of the upper side of the slide plate (11).

2. An automated screw processing device as claimed in claim 1, characterized in that: The support shell (7) is a square box structure with an opening on the upper side. The front side and the rear side of the box of the support shell (7) are both provided with grooves. The lower side of the support shell (7) is provided with a through hole. The push-pull rod (12) is inserted into the through hole of the support shell (7).

3. The automatic screw processing device according to claim 1, characterized in that: The number of the clamping sliders (13) is two groups, and the clamping sliders (13) are symmetrically distributed on the left and right sides. The front side and the rear side of each group of clamping sliders (13) are respectively provided with threaded holes and convex plate structures from top to bottom, and the convex plate structures on the front side and the rear side of the clamping sliders (13) are embedded in the groove of the support shell (7).

4. The automatic screw processing device according to claim 1, characterized in that: The four corners of the pressing plate (3) are provided with through holes that penetrate vertically, and the four groups of guide columns (5) are respectively inserted into the four groups of through holes of the pressing plate (3).

5. The automatic screw processing device according to claim 1, characterized in that: The number of the lower molds (6) is two groups, and the lower molds (6) are symmetrically distributed on the left and right. The opposite surfaces of the two groups of lower molds (6) are provided with semi-cylindrical grooves with upper openings. The lower side surface of each group of lower molds (6) is provided with grooves with left and right openings. The front side surface and the rear side surface of the groove are provided with through holes. The through holes of the lower molds (6) are connected to the threaded holes of the clamping slider (13).

6. The automatic screw processing device according to claim 1, characterized in that: The base (8) is an L-shaped folded plate structure, and a triangular support plate is provided inside the L-shaped folded plate of the base (8).

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