Threaded cap cold heading die

Abstract

The utility model relates to the technical field of cold heading dies, and discloses a threaded cap cold heading die which comprises a lower die and an upper die, electric telescopic connecting rods are connected to the corners of the periphery of the upper surface of the upper die in an embedded mode, and the corners of the periphery of the lower surface of the upper die are detachably connected with the telescopic ends of the electric telescopic connecting rods. A fixing hole is formed in the center of the upper surface of the lower mold, threaded holes are formed in the two sides of an inner cavity of the fixing hole, and the threaded holes transversely penetrate through the fixing hole; the cold heading die can fix threaded caps with different sizes to a certain extent, can be matched with a thread rolling die to be used for machining the threaded caps with different sizes, solves the problem that an existing die can only be matched in a one-to-one mode, can produce different threaded caps without additionally arranging too many cold heading dies, effectively reduces production cost, and improves production efficiency. The production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cold heading dies, in particular to a cold heading die for a threaded cover. Background Art

[0002] Cold heading dies are tools used to form a specific shape or structure by processing a metal workpiece, usually steel or other metal alloys, in a cold state. This processing method is called cold heading, and its main feature is the plastic deformation of the metal at room temperature without preheating. Threaded cap cold heading dies are tools used to manufacture threaded caps, usually made of cemented carbide or other high-strength materials. The main function of threaded cap cold heading dies is to form threads on metal workpieces so that the threaded caps can be easily connected or fixed to other parts;

[0003] The threaded cap is a protective part used to cover the threaded part, usually made of plastic, metal or rubber. Its main function is to protect the threaded part from the external environment, and it can also play a role in waterproofing, dustproofing, and corrosion resistance. The existing threaded caps usually have threads opened inside, and there are various threaded caps on the market. The existing mold can only correspond to one bottle cap, and the production of multiple threaded caps requires the addition of different corresponding molds, which increases the production cost. For this reason, we propose a threaded cap cold heading mold. Utility Model Content

[0004] The main purpose of the utility model is to provide a threaded cover cold heading die, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a threaded cover cold heading die, comprising a lower die and an upper die, the upper surface of the upper die is inlaid with electric telescopic connecting rods at the corners around, and the lower surface of the upper die is detachably connected to the telescopic end of the electric telescopic connecting rod at the corners around, a fixing hole is provided at the center position of the upper surface of the lower die, threaded holes are provided on both sides of the inner cavity of the fixing hole, and the threaded holes penetrate the fixing holes horizontally, a threaded rod is threadedly connected to the inner cavity of the threaded hole, and a twist head is fixedly connected to the end of the threaded rod away from the fixing hole, fixing plates are provided on both sides of the threaded hole, and the back of the fixing plate is rotatably connected to the threaded rod, a limiting slide groove is provided at the bottom end of the inner cavity of the fixing hole, limiting rods are slidably provided on both sides of the inner cavity of the limiting slide groove, and the top end of the limiting rod is fixedly connected to the bottom end of the fixing plate.

[0006] Preferably, a spring connecting rod is embedded and connected to the bottom end of the inner cavity of the fixing hole, and a push plate is fixedly connected to the top end of the spring connecting rod.

[0007] Preferably, a servo motor is embedded and connected at the center position of the top end of the upper mold, and the power output end of the servo motor passes through the upper mold and extends to the lower surface of the upper mold.

[0008] Preferably, the power output end of the servo motor is fixedly connected to a fixing rod, and the end of the fixing rod is detachably connected to a thread rolling die.

[0009] Preferably, a fixing sleeve matched with a fixing rod is fixedly connected to the upper surface of the thread rolling die, a fixing bolt is threadedly connected to the surface of the fixing sleeve, and a fixing screw hole matched with the fixing bolt is opened on the surface of the end of the connecting rod.

[0010] Preferably, an anti-slip pad is fixedly connected to the inner side wall of the fixing plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model sets a lower mold, a fixing hole, a fixing plate, a twist head, a threaded hole, a threaded rod, a limiting slide groove and a limiting rod to cooperate with each other. When the threaded cover is cold-forged, the cylindrical semi-finished product is placed in the fixing hole, and the twist head is twisted clockwise, and the threaded rod is driven to rotate by twisting, and moves horizontally forward along the threaded hole opened in the inner cavity of the lower mold, and pushes the fixing plate rotatably connected to it to move horizontally toward each other under the limit between the limiting slide groove and the limiting rod, so as to clamp and fix the cylindrical semi-finished product placed in the fixing hole of the lower mold, and after fixing, the upper mold is driven to move downward by the electric telescopic connecting rod, and the thread rolling mold above the upper mold is moved to The thread rolling die is fixed in the inner cavity of the cylindrical semi-finished product, and the thread rolling die is driven by a servo motor to rotate to roll the cylindrical semi-finished product inner cavity, and the thread rolling die is connected to the fixed rod installed at the bottom of the servo motor by bolts. The connection method is simple and convenient for disassembly and assembly, so that the corresponding thread rolling die can be quickly replaced according to needs during processing, and the lower die can fix thread caps of different sizes to a certain extent, and then cooperate with the thread rolling die to adapt to the cold heading of thread caps of different sizes, solving the problem that the existing die can only be adapted one-to-one. There is no need to add too many cold heading dies to produce different thread caps, which effectively reduces production costs and improves production efficiency.

[0013] 2. The utility model cooperates with each other through the fixing hole, the spring connecting rod and the push plate. During cold heading, the semi-finished threaded cover will be placed in the inner cavity of the fixing hole and fixed by the fixing plate, thereby ensuring stability during processing. After processing, the twist head is twisted in the opposite direction, and the threaded rod and the fixing plate fixed on the inner side of the threaded rod are driven to move relative to each other, thereby releasing the limit on the threaded cover. When the threaded cover loses its clamping force, the spring connecting rod will drive the push plate to move upward, and push the processed threaded cover to move upward, and then move it out of the fixed hole box, thereby facilitating the processing personnel to collect the materials, effectively reducing the difficulty of demolding, and further improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a cross-sectional view of the lower mold of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the molding die of the utility model.

[0017] In the figure: 1. lower mold; 2. electric telescopic connecting rod; 3. upper mold; 4. servo motor; 5. thread rolling mold; 6. fixing hole; 7. fixing plate; 8. twist head; 9. threaded hole; 10. threaded rod; 11. limit slide groove; 12. limit rod; 13. spring connecting rod; 14. push plate; 15. fixing sleeve; 16. fixing bolt; 17. fixing rod; 18. fixing screw hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Example

[0020] See also Figure 1 - Figure 3 The threaded cover cold heading die shown in the figure comprises a lower die 1 and an upper die 3. The upper surface of the upper die 3 is inlaid with electric telescopic connecting rods 2 at the corners around it, and the lower surface of the upper die 3 is detachably connected to the telescopic end of the electric telescopic connecting rod 2 at the corners around it. A fixing hole 6 is provided at the center of the upper surface of the lower die 1. Threaded holes 9 are provided on both sides of the inner cavity of the fixing hole 6, and the threaded hole 9 passes through the fixing hole 6 horizontally. A threaded rod 10 is threadedly connected to the inner cavity of the threaded hole 9. The end of the threaded rod 10 away from the fixing hole 6 is fixedly connected to a twist head 8. Fixed plates 7 are provided on both sides of the threaded hole 9, and the back of the fixed plate 7 is rotated with the threaded rod 10. The fixing plate 7 is connected to the mold 1 by a screw threaded rod 10, and the fixing plate 7 is connected to the mold 1 by a screw threaded rod 10. The fixing plate 7 is connected to the mold 1 by a screw threaded rod 10, and the fixing plate 7 is connected to the mold 1 by a screw threaded rod 10. The fixing plate 7 is connected to the mold 1 by a screw threaded rod 10, and the fixing plate 7 is connected to the fixing plate 7 by a screw threaded rod 10. The fixing plate 7 is connected to the fixing plate 10, and the fixing plate 7 is connected to the fixing plate 10, and the fixing plate 7 is connected to the fixing plate 10, and the fixing plate 7 is connected to the fixing plate 10, and the fixing plate 10 is connected to the fixing plate 10. The fixing plate 10 ...

[0021] Among them, a spring connecting rod 13 is embedded and connected to the bottom end of the inner cavity of the fixing hole 6, and a push plate 14 is fixedly connected to the top of the spring connecting rod 13; when the threaded cover loses its clamping force, the spring connecting rod 13 will drive the push plate 14 to move upward, and push the processed threaded cover to move upward, and then move it out of the fixing hole 6 box, so as to facilitate the processing personnel to collect the materials, effectively reduce the difficulty of demolding, and further improve the processing efficiency.

[0022] Among them, a servo motor 4 is embedded and connected at the center position of the top of the upper mold 3, and the power output end of the servo motor 4 passes through the upper mold 3 and extends to the lower surface of the upper mold 3; the motor is automatically driven during processing, which saves time and effort and improves processing efficiency.

[0023] Among them, the power output end of the servo motor 4 is fixedly connected to a fixing rod 17, and the end of the fixing rod 17 is detachably connected to a thread rolling die 5. The upper surface of the thread rolling die 5 is fixedly connected to a fixing sleeve 15 that is compatible with the fixing rod 17. The surface of the fixing sleeve 15 is threadedly connected to a fixing bolt 16, and the surface of the end of the connecting rod is provided with a fixing screw hole 18 that is compatible with the fixing bolt 16; the thread rolling die 5 is sleeved on the surface of the fixing rod 17 through the fixing sleeve 15, and the thread rolling die 5 is fixed to the fixing rod 17 by means of a threaded connection between the fixing bolt 16 and the fixing screw hole 18. The connection method is simple and convenient to disassemble, which makes it convenient to quickly replace different thread rolling dies 5 during the processing of threaded caps, so as to adapt to different threaded cap processing and use, and reduce the limitations of the mold when using.

[0024] Among them, the inner wall of the fixing plate 7 is fixedly connected with an anti-skid pad; the anti-skid pad can effectively improve the anti-skid property of the fixing plate 7, and further ensure the stability during fixation.

[0025] It should be noted that the utility model is a cold heading die for threaded caps. The cylindrical semi-finished threaded cap is placed in the threaded hole 9 opened on the upper surface of the lower die 1, and the twist head 8 is twisted clockwise to drive the threaded rod 10 to rotate, and move forward horizontally along the threaded hole 9 opened in the inner cavity of the lower die 1, and push the fixed plate 7 rotatably connected thereto to move horizontally toward each other under the limit between the limit slide groove 11 and the limit rod 12, thereby clamping and fixing the cylindrical semi-finished product placed in the fixed hole 6 of the lower die 1, and after fixing, the upper die 3 is driven to move downward by the electric telescopic connecting rod 2. The thread rolling die 5 above the upper die 3 moves to the fixed cylindrical inner cavity of the semi-finished product, and the thread rolling die 5 is driven to rotate by the servo motor 4 to roll the cylindrical inner cavity of the semi-finished product, and after rolling, the reverse operation of the twist head 8 can drive the fixed plate 7 to move relatively, thereby releasing the limit on the threaded cover, and when the threaded cover loses its clamping force, the spring connecting rod 13 will drive the push plate 14 to move upward, and push the processed threaded cover to move upward, and then move it out of the fixed hole 6 box, so as to facilitate the processing personnel to collect the materials, effectively reduce the difficulty of demoulding, and further improve the processing efficiency.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A threaded cap cold heading die, comprising a lower die (1) and an upper die (3), characterized in that: The upper surface of the upper mold (3) is inlaid with electric telescopic connecting rods (2) at the corners around the upper surface of the upper mold (3), and the lower surface of the upper mold (3) is detachably connected to the telescopic end of the electric telescopic connecting rod (2). A fixing hole (6) is provided at the center position of the upper surface of the lower mold (1). Threaded holes (9) are provided on both sides of the inner cavity of the fixing hole (6), and the threaded hole (9) passes through the fixing hole (6) horizontally. The inner cavity of the threaded hole (9) is threadedly connected with a threaded rod (10), and the end of the threaded rod (10) away from the fixing hole (6) is fixedly connected with a twist head (8). Fixed plates (7) are provided on both sides of the threaded hole (9), and the back of the fixed plate (7) is rotatably connected to the threaded rod (10). A limiting slide groove (11) is provided at the bottom end of the inner cavity of the fixing hole (6), and limiting rods (12) are slidably provided on both sides of the inner cavity of the limiting slide groove (11), and the top of the limiting rod (12) is fixedly connected to the bottom end of the fixing plate (7).

2. The threaded cap cold heading die according to claim 1, characterized in that: A spring connecting rod (13) is embedded and connected to the bottom end of the inner cavity of the fixing hole (6), and a push plate (14) is fixedly connected to the top end of the spring connecting rod (13).

3. The threaded cap cold heading die according to claim 2, characterized in that: A servo motor (4) is embedded and connected at the center position of the top end of the upper mold (3), and the power output end of the servo motor (4) passes through the upper mold (3) and extends to the lower surface of the upper mold (3).

4. The threaded cap cold heading die according to claim 3, characterized in that: The power output end of the servo motor (4) is fixedly connected to a fixing rod (17), and the end of the fixing rod (17) is detachably connected to a thread rolling die (5).

5. The threaded cap cold heading die according to claim 4, characterized in that: A fixing sleeve (15) matched with a fixing rod (17) is fixedly connected to the upper surface of the thread rolling die (5); a fixing bolt (16) is threadedly connected to the surface of the fixing sleeve (15); and a fixing screw hole (18) matched with the fixing bolt (16) is provided on the surface of the end of the connecting rod.

6. The threaded cap cold heading die according to claim 1, characterized in that: An anti-slip pad is fixedly connected to the inner side wall of the fixing plate (7).

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