Micro capillary tube pre-necking mechanism of drawing machine

Abstract

The utility model discloses a superfine capillary tube pre-necking mechanism of a drawing machine, which relates to the technical field of drawing machines and comprises a bottom plate, a mounting seat is fixedly mounted at the upper end of the bottom plate, supporting columns are symmetrically and fixedly mounted at the upper end of the mounting seat, and a same fixing plate is fixedly mounted at the upper ends of the supporting columns. By the adoption of the structure, the output end of the first air cylinder stretches into the groove of the installation base and abuts against the lower die set at the groove, and meanwhile the output end of the second air cylinder on the fixing plate stretches out and draws back to push the upper die installed at the lower end clamping base to abut against the upper end of the lower die set. The upper die protrusion at the lower end of the upper die extends into the second lower die groove in the lower die set, and due to the fact that the upper die protrusion at the lower end of the upper die is provided with three different specifications, the upper die protrusion is matched with the second lower die groove in the upper end of the lower die set, and three different specifications of drawing preshrinking hole structures can be formed. Therefore, the use and operation of drawing the capillary tube again according to the production process and requirements in the later period are facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of drawing machines, and particularly relates to a micro capillary pre-shrinking mechanism of a drawing machine. Background Art

[0002] Drawing machine is a professional mechanical equipment, mainly used for the stretching of metal wires, tubes or bars. It applies continuous and controllable pulling force to the material through a series of precision-designed fixtures and dies, thereby achieving plastic deformation and dimensional adjustment of the material. The drawing process can significantly improve the mechanical properties and surface quality of the material, and is widely used in wire and cable, automotive parts, aerospace, petrochemical and other industries.

[0003] However, the current traditional drawing machines still have some shortcomings in actual use. For example, when drawing, the drawing machine often needs to use a handle mold, and the general drawing molds on the market are often simple in structure and can only achieve a simple one-time pull. If it is necessary to pull again according to production needs in the future, the corresponding mold needs to be replaced. Therefore, it is still not efficient in use. Utility Model Content

[0004] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a micro-capillary pre-shrinking mechanism for a drawing machine to solve the problems mentioned in the background technology.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A micro-capillary pre-shrinking mechanism of a drawing machine comprises a base plate, a mounting seat is fixedly installed on the upper end of the base plate, a supporting column is symmetrically fixedly installed on the upper end of the mounting seat, the same fixing plate is fixedly installed on the upper end of the supporting column, a second cylinder is fixedly installed on the upper end of the fixing plate, a clamping seat is fixedly installed on the output end of the second cylinder, an upper mold is fixedly installed on the lower end of the clamping seat, and an upper mold is fixedly connected to the lower end of the upper mold with an upper mold convex, a groove is opened on the upper end of the mounting seat, a lower mold group is arranged on the inner side of the groove, a limiting block is fixedly installed on the outer side of the groove, the lower end of the upper mold abuts against the upper end of the lower mold group, a first lower mold groove and a second lower mold groove are respectively arranged on the upper end of the lower mold group, the lower end of the upper mold convex extends into the inner side of the second lower mold groove, a first cylinder is fixedly installed on one end of the mounting seat, the output end of the first cylinder extends into the inner side of the groove and abuts against the lower mold group, and the lower mold group cooperates with the upper mold to realize the drawing and use of the capillary according to different production processes;

[0007] The lower mold group includes a first module, a second module, a third module and a fourth module. The right sides of the first module, the second module and the third module are fixedly connected with positioning blocks, and the left sides of the second module, the third module and the fourth module are provided with positioning grooves. The positioning blocks of the first module, the second module and the third module are plugged into the positioning grooves of the second module, the third module and the fourth module from left to right in sequence. The positioning grooves and the positioning blocks of the lower mold group can facilitate the combination and connection of the lower mold group.

[0008] As a preferred technical solution, a first mounting hole is symmetrically opened at the upper end of the mounting seat, and the mounting seat is fixedly installed by screws penetrating the first mounting hole and the base plate. The mounting seat can be easily installed through the first mounting hole.

[0009] As a preferred technical solution, a second mounting hole is opened at the upper end of the clamp seat, and the clamp seat is fixedly installed by screws passing through the second mounting hole and the upper end of the upper mold. The upper mold and the clamp seat can be conveniently connected and installed through the second mounting hole.

[0010] As an optimal technical solution, a dovetail block is fixedly connected to the upper end of the upper mold, a dovetail groove is provided at the lower end of the clamp seat, and the dovetail block and the dovetail groove are plugged into each other. Through the dovetail block and the dovetail groove, the upper mold can be conveniently positioned and plugged into the clamp seat.

[0011] As a preferred technical solution, a through hole is opened on one side of the inner wall of the groove, and the output end of the first cylinder movably passes through the through hole and abuts against one side of the lower mold group. Through the through hole on one side of the inner wall of the groove, the output end of the first cylinder can conveniently perform horizontal and transverse tightening operation on the lower mold group.

[0012] As a preferred technical solution, an assembly groove is opened on the inner side of the groove, and the limit block is fixedly installed on the inner side of the assembly groove by screws. Through the assembly groove, the limit block can be positioned and installed in the groove to limit the lower mold assembly.

[0013] In summary, the utility model mainly has the following beneficial effects:

[0014] In this technical solution, the output end of the first cylinder extends into the groove of the mounting seat and presses the lower mold group at the groove tightly. At the same time, the output end of the second cylinder on the fixed plate telescopes and pushes the upper mold installed at the lower end clamp to press the upper end of the lower mold group tightly. The upper mold convex at the lower end of the upper mold extends into the second lower mold groove on the lower mold group. Since the upper mold convex at the lower end of the upper mold is provided with three different specifications, it cooperates with the second lower mold groove at the upper end of the lower mold group to form three different specifications of drawing pre-shrinkage hole structures, thereby facilitating the use and operation of re-drawing the capillary according to production processes and needs in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a front view of the utility model;

[0017] Figure 3 The utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 It is a schematic diagram of the connection between the positioning block and the positioning groove of the utility model.

[0019] Figure numerals: 1. base plate; 2. mounting seat; 3. first cylinder; 4. fixing plate; 5. first mounting hole; 6. support column; 7. second cylinder; 8. limit block; 9. assembly groove; 10. clamp seat; 11. upper mold; 12. second mounting hole; 13. through hole; 14. groove; 15. lower mold assembly; 151. first module; 152. second module; 153. third module; 154. fourth module; 16. dovetail groove; 17. dovetail block; 18. upper mold convex; 19. first lower mold groove; 20. second lower mold groove; 21. positioning block; 22. positioning groove. DETAILED DESCRIPTION

[0020] refer to Figures 1 to 4The micro-capillary pre-shrinking mechanism of a drawing machine described in this embodiment includes a base plate 1, a mounting seat 2 is fixedly installed on the upper end of the base plate 1, a support column 6 is symmetrically fixedly installed on the upper end of the mounting seat 2, the same fixing plate 4 is fixedly installed on the upper end of the support column 6, a second cylinder 7 is fixedly installed on the upper end of the fixing plate 4, a clamping seat 10 is fixedly installed on the output end of the second cylinder 7, an upper mold 11 is fixedly installed on the lower end of the clamping seat 10, and an upper mold convex 18 is fixedly connected to the lower end of the upper mold 11, a groove 14 is opened on the upper end of the mounting seat 2, a lower mold group 15 is provided on the inner side of the groove 14, and a limiting block 8 is fixedly installed on the outer side of the groove 14, the lower end of the upper mold 11 is abutted against the upper end of the lower mold group 15, and the upper end of the lower mold group 15 is respectively provided with a first lower mold groove 19 and a second lower mold groove 20, and the lower end of the upper mold convex 18 extends into the second lower mold groove 19 and the second lower mold groove 20. On the inner side of the die groove 20, one end of the mounting seat 2 is fixedly mounted with a first cylinder 3, and the output end of the first cylinder 3 extends into the inner side of the groove 14 and abuts against the lower die set 15, and the output end of the first cylinder 3 extends into the groove 14 of the mounting seat 2 and abuts against the lower die set 15 at the groove 14, and at the same time, the output end of the second cylinder 7 on the fixed plate 4 telescopes and pushes the upper die 11 installed at the lower end clamping seat 10 to abut against the upper end of the lower die set 15, and the upper die convex 18 at the lower end of the upper die 11 extends into the second lower die groove 20 on the lower die set 15, and since the upper die convex 18 at the lower end of the upper die 11 is provided with three different specifications, it cooperates with the second lower die groove 20 at the upper end of the lower die set 15 to form three different specifications of drawing hole structures; the fixed plate 4 is also provided with a hole, which can facilitate the output end of the second cylinder 7 to move through the fixed plate 4;

[0021] The lower mold assembly 15 includes a first module 151, a second module 152, a third module 153 and a fourth module 154. The right sides of the first module 151, the second module 152 and the third module 153 are fixedly connected with a positioning block 21, and the left sides of the second module 152, the third module 153 and the fourth module 154 are provided with a positioning groove 22. The positioning blocks 21 of the first module 151, the second module 152 and the third module 153 are plugged with the positioning grooves 22 of the second module 152, the third module 153 and the fourth module 154 from left to right in sequence. The first module 151, the second module 152, the third module 153 and the fourth module 154 are used, and the positioning blocks 21 of the first module 151, the second module 152 and the third module 153 are plugged with the positioning grooves 22 of the second module 152, the third module 153 and the fourth module 154 from left to right in sequence, so that the combination and more stable connection of the first module 151, the second module 152, the third module 153 and the fourth module 154 can be realized; the lower mold assembly 15 is also provided with a first lower mold groove 19, which can be suitable for another type of capillary processing.

[0022] refer to Figure 1A first mounting hole 5 is symmetrically opened at the upper end of the mounting base 2, and the mounting base 2 is fixedly installed by screws penetrating the first mounting hole 5 and the base plate 1. By using the first mounting hole 5 on the mounting base 2, the mounting base 2 can be conveniently fixedly installed on the base plate 1 by screws.

[0023] refer to Figure 1 A second mounting hole 12 is provided at the upper end of the clamp seat 10, and the clamp seat 10 is fixedly installed by screws penetrating the second mounting hole 12 and the upper end of the upper mold 11. A dovetail block 17 is fixedly connected to the upper end of the upper mold 11, and a dovetail groove 16 is provided at the lower end of the clamp seat 10. The dovetail block 17 and the dovetail groove 16 are plugged together. When the upper mold 11 and the clamp seat 10 are installed, the dovetail block 17 on the upper mold 11 is positioned and plugged with the dovetail groove 16 on the clamp seat 10, and then the second mounting hole 12 is penetrated from the upper end of the clamp seat 10 by screws and connected and fixed with the dovetail block 17, so that the upper mold 11 can be conveniently positioned, installed and fixed on the clamp seat 10.

[0024] refer to Figure 1 A through hole 13 is provided on one side of the inner wall of the groove 14, and the output end of the first cylinder 3 movably passes through the through hole 13 and abuts against one side of the lower mold assembly 15. By extending the output end of the first cylinder 3 into the groove 14 through the through hole 13, the lower mold assembly 15 in the groove 14 can be conveniently fixed horizontally.

[0025] refer to Figure 3 An assembly groove 9 is opened on the inner side of the groove 14, and the limit block 8 is fixedly installed on the inner side of the assembly groove 9 by screws. The limit block 8 is fixed to the assembly groove 9 of the groove 14 by screws, so that the limit block 8 can be used to limit the lower mold assembly 15 at the groove 14 of the mounting seat 2.

[0026] Principle and advantages of use: During use, the lower mold assembly 15 is placed in the groove 14 of the mounting seat 2, and then the lower mold assembly 15 can be horizontally limited by the limit block 8 at the groove 14, and the output end of the first cylinder 3 extends into the groove 14 of the mounting seat 2 and presses the lower mold assembly 15 at the groove 14 tightly, and at the same time, the output end of the second cylinder 7 on the fixed plate 4 telescopes and pushes the upper mold 11 installed at the lower end clamp 10 to press the upper end of the lower mold assembly 15 tightly, and the upper mold convex 18 at the lower end of the upper mold 11 extends into the second lower mold groove 20 on the lower mold assembly 15. Since the upper mold convex 18 at the lower end of the upper mold 11 is provided with three different specifications of drawing pre-shrinkage hole structures, the functionality of capillary processing and the use effect of drawing can be improved through this structure.

Claims

1. A micro-capillary pre-shrinking mechanism for a drawing machine, comprising a bottom plate (1), characterized in that: The upper end of the base plate (1) is fixedly mounted with a mounting seat (2), the upper end of the mounting seat (2) is symmetrically fixedly mounted with a support column (6), the upper end of the support column (6) is fixedly mounted with the same fixing plate (4), the upper end of the fixing plate (4) is fixedly mounted with a second cylinder (7), the output end of the second cylinder (7) is fixedly mounted with a clamping seat (10), the lower end of the clamping seat (10) is fixedly mounted with an upper mold (11), the lower end of the upper mold (11) is fixedly connected with an upper mold convex (18), the upper end of the mounting seat (2) is provided with a groove (14), and the A lower die set (15) is provided on the inner side of the groove (14), a limit block (8) is fixedly installed on the outer side of the groove (14), the lower end of the upper die (11) is in contact with the upper end of the lower die set (15), the upper end of the lower die set (15) is respectively provided with a first lower die groove (19) and a second lower die groove (20), the lower end of the upper die convex (18) extends into the inner side of the second lower die groove (20), a first cylinder (3) is fixedly installed on one end of the mounting seat (2), the output end of the first cylinder (3) extends into the inner side of the groove (14) and is in contact with the lower die set (15).

2. The micro-capillary pre-shrinking mechanism of a drawing machine according to claim 1, characterized in that: The lower mold assembly (15) comprises a first module (151), a second module (152), a third module (153) and a fourth module (154); the right sides of the first module (151), the second module (152) and the third module (153) are fixedly connected with positioning blocks (21); the left sides of the second module (152), the third module (153) and the fourth module (154) are provided with positioning grooves (22); the positioning blocks (21) of the first module (151), the second module (152) and the third module (153) are plugged into the positioning grooves (22) of the second module (152), the third module (153) and the fourth module (154) from left to right.

3. The micro-capillary pre-shrinking mechanism of a drawing machine according to claim 1, characterized in that: A first mounting hole (5) is symmetrically provided at the upper end of the mounting seat (2), and the mounting seat (2) is fixedly mounted by screws penetrating the first mounting hole (5) and the bottom plate (1).

4. The micro-capillary pre-shrinking mechanism of a drawing machine according to claim 1, characterized in that: The upper end of the clamping seat (10) is provided with a second mounting hole (12), and the clamping seat (10) is fixedly mounted by screws penetrating the second mounting hole (12) and the upper end of the upper mold (11).

5. The micro-capillary pre-shrinking mechanism of a drawing machine according to claim 1, characterized in that: A dovetail block (17) is fixedly connected to the upper end of the upper mold (11), a dovetail groove (16) is provided at the lower end of the clamping seat (10), and the dovetail block (17) and the dovetail groove (16) are plug-fitted and connected.

6. The micro-capillary pre-shrinking mechanism of a drawing machine according to claim 1, characterized in that: A through hole (13) is provided on one side of the inner wall of the groove (14), and the output end of the first cylinder (3) movably passes through the through hole (13) and abuts against one side of the lower mold assembly (15).

7. The micro capillary pre-shrinking mechanism of a drawing machine according to claim 1, characterized in that: An assembly groove (9) is provided on the inner side of the groove (14), and the limit block (8) is fixedly mounted on the inner side of the assembly groove (9) by means of screws.

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