Movable support mechanism for a metal tube piercing die

Abstract

The utility model provides a movable support mechanism for metal pipe punching die, wherein the metal pipe punching die includes an upper die holder and a lower die holder, the upper die holder is provided with a punch for punching the metal pipe, the lower die holder is provided with a mounting block, the mounting block is provided with a punching female die, the punch and the punching female die correspond, and the movable support mechanism comprises a driving block for driving a support sliding block to translate to below the punching female die, a support sliding block for supporting the punching female die and a return cylinder for driving the support sliding block to translate back to the original position, the driving block top is connected with the upper die holder, and the driving block bottom is provided with a first inclined surface; the return cylinder is fixed on the lower die holder, one end of the support sliding block is connected with the movable end of the return cylinder, the other end of the support sliding block is provided with a second inclined surface, and the first inclined surface and the second inclined surface are matched to realize the translation of the support sliding block to below the punching female die. The utility model solves the problem of how to improve the production efficiency of the stamping die for punching the metal pipe in the prior art.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary mechanisms for metal pipe punching dies, and in particular to a movable support mechanism for metal pipe punching dies. Background Technology

[0002] When producing (e.g., punching) a metal tube 1, a support block 17 is typically placed below the metal tube 1, which is fitted onto the punching die 7, to prevent deformation of the punching die 7 due to the punching pressure. (See [reference]). Figure 1 and Figure 2 Because the gap between the metal tube 1 and the punching die 7 and the support block 17 is small, the loading and unloading operations are slow. For example, the metal tube 1 needs to be put on the punching die 7 first, and then the support block needs to be manually placed between the metal tube 1 and the lower die base 3 to complete the loading operation. After the metal tube 1 is punched, the support block 17 needs to be manually removed from between the metal tube and the lower die base 3, and then the punched metal tube 1 needs to be removed from the punching die 7 to complete the unloading operation. In this way, the punching rate of the stamping die is generally 3 times / minute, the production rhythm is slow, and the overall production unloading is even lower.

[0003] Therefore, how to improve the production efficiency of stamping dies for punching metal tubes has become a technical problem that needs to be solved. Utility Model Content

[0004] The purpose of this utility model is to provide a movable support mechanism for a metal tube punching die, which mainly solves the problem of how to improve the production efficiency of punching dies for metal tubes in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a movable support mechanism for a metal pipe punching die, wherein the metal pipe punching die includes an upper die base and a lower die base, the upper die base is provided with a punch for punching the metal pipe, the lower die base is provided with a mounting block, the mounting block is provided with a punching die, the punch and the punching die correspond to each other, characterized in that: the movable support mechanism includes a driving block for driving a support slider to translate to below the punching die, a support slider for supporting the punching die, and a return cylinder for driving the support slider to translate back to its original position, the top of the driving block is connected to the upper die base, and the bottom of the driving block is provided with a first inclined surface;

[0006] The return cylinder is fixed on the lower die base. The movable end of the return cylinder is connected to one end of the support slider. The other end of the support slider is provided with a second inclined surface. The first inclined surface and the second inclined surface match to realize the translation of the support slider to the bottom of the punching die.

[0007] Furthermore, the lower mold base is provided with a through hole for the drive block to pass through, and the through hole is located directly below the drive block.

[0008] Furthermore, the lower mold base is provided with a first limiting block, and the first limiting block and the support slider are located on both sides of the through hole. The vertical projections of the first limiting block, the driving block and the support slider are located on a straight line.

[0009] Furthermore, a first plane is provided at the bottom of the punching die corresponding to the support slider.

[0010] Furthermore, the top of the support slider facing the punching die has a stepped portion. When the support slider moves to the bottom of the punching die, the top of the stepped portion abuts against the first plane of the punching die. When the support slider moves away from the bottom of the punching die and returns to its original position, there is a gap between the top of the stepped portion and the first plane of the punching die.

[0011] Furthermore, the lower mold base is also equipped with a guide bottom plate and two guide side plates. The top of the two guide side plates is connected to a guide top plate. The guide bottom plate, the two guide side plates and the guide top plate together form a guide space for supporting the back-and-forth translation of the slider.

[0012] Furthermore, a second limiting block is provided on the lower mold base, and the return cylinder is connected to the lower mold base through a mounting base, with the other end of the return cylinder away from the moving end abutting against the second limiting block.

[0013] Furthermore, the first inclined surface and the second inclined surface have the same inclination angle;

[0014] The horizontal projection length of the drive block is L1, the horizontal projection length of the support slider is L2, the horizontal projection length of the end of the first plane near the first limiting block from the side of the first limiting block is L3, and the horizontal projection length of the other end of the first plane away from the first limiting block from the side of the first limiting block is L4. The value of L1 plus L2 is greater than or equal to the value of L4, and the value of L2 is less than the value of L3.

[0015] Furthermore, the return cylinder is a return nitrogen cylinder.

[0016] In view of the above technical features, the present invention has the following beneficial effects:

[0017] 1. This utility model discloses a movable support mechanism for a metal pipe punching die, which is installed on the punching die. By utilizing the movable support mechanism, the metal pipe can be directly inserted into the punching die, significantly improving the production cycle, increasing production efficiency, and ensuring the punching quality of the metal pipe. It is suitable for low-pressure oil pipes, shock absorber components, etc. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the metal tube structure in specific embodiment 1.

[0019] Figure 2 This is a schematic diagram of the structure of a punching die used to process metal pipes in the existing technology.

[0020] Figure 3 This is a movable support mechanism for a metal tube punching die in specific embodiment 1 (the upper die base is not shown; the view is from the front view before the support slider is translated).

[0021] Figure 4 This is a movable support mechanism for a metal tube punching die in specific embodiment 1 (the upper die base is not shown; the support slider is viewed from a perspective before translation).

[0022] Figure 5 This is a movable support mechanism for a metal tube punching die in specific embodiment 1 (the upper die base is not shown; the perspective view 1 shows the support slider after it has been translated).

[0023] Figure 6 This is a movable support mechanism for a metal tube punching die in specific embodiment 1 (the upper die base and drive block are not shown; the perspective view 2 shows the support slider after it has been translated).

[0024] Figure 7 This is a movable support mechanism for a metal tube punching die in specific embodiment 1 (view from a perspective after the support slider has been translated).

[0025] Figure 8 This is a schematic diagram of the upper mold base, drive block, and punch in specific embodiment 1.

[0026] Figure 9 This is a movable support mechanism for a metal tube punching die in specific embodiment 1 (the upper die base is not shown; before the support slider is translated, the main view shows L1, L2, L3, and L4).

[0027] In the diagram: 1. Metal tube; 1-1. Hole;

[0028] 2. Upper mold base;

[0029] 3. Lower mold base;

[0030] 4. Punch;

[0031] 5. Driving block; 5-1. First inclined surface;

[0032] 6. Installation block;

[0033] 7. Punching die; 7-1. First plane; 7-2. Curved surface;

[0034] 8. Supporting slider; 8-1. Second inclined surface; 8-2. Stepped section; 8-2-1. Vertical surface behind the stepped section;

[0035] 9. Return cylinder;

[0036] 10. Mounting base;

[0037] 11. First limit block;

[0038] 12. Through hole;

[0039] 13. Second limit block;

[0040] 14. Guide space; 14-1. Guide top plate; 14-2. Guide side plate; 14-3. Guide bottom plate;

[0041] 15. External limit block;

[0042] 16. External guiding mechanism;

[0043] 17. Support blocks of existing technology. Detailed Implementation

[0044] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0045] See Figure 1 , 3 to Figure 9 In specific embodiment 1, this embodiment 1 provides a movable support mechanism for a metal pipe punching die, wherein the metal pipe punching die includes an upper die base 2 and a lower die base 3. The upper die base 2 is provided with a punch 4 for punching a metal pipe 1, and the lower die base 3 is provided with a mounting block 6. The mounting block 6 is provided with a punching die 7. The punch 4 and the punching die 7 correspond to each other (that is, the punch 4 presses down to cooperate with the punching die 7 to complete the punching of the metal pipe 1, and the hole 1-1 of the metal pipe 1 is formed). The movable support mechanism includes a driving block 5 for driving the support slider 8 to translate to below the punching die 7, a support slider 8 for supporting the punching die 7, and a return cylinder 9 for driving the support slider 8 to translate back to its original position. Preferably, the return cylinder 9 is a return nitrogen cylinder. The top of the driving block 5 is connected to the upper die base 2, and the bottom of the driving block 5 is provided with a first inclined surface 5-1.

[0046] The return cylinder 9 is fixed on the lower die base 3. The movable end of the return cylinder 9 is connected to one end of the support slider 8. The other end of the support slider 8 is provided with a second inclined surface 8-1. The first inclined surface 5-1 and the second inclined surface 8-1 match to realize the translation of the support slider 8 to below the punching die 7. The downward-moving drive block 5 uses the cooperation of the first inclined surface 5-1 and the second inclined surface 8-1 to push the support slider 8 to translate towards the punching die 7 and to the punching die 7, realizing the support function of the support slider 8 on the punching die 7. In this process, preferably the first inclined surface 5-1 and the second inclined surface 8-1 have the same inclination angle, so that the driving force of the drive block 5 on the support slider 8 is more evenly applied to the second inclined surface 8-1, avoiding uneven force that may cause damage to the drive block 5 and / or the support slider 8.

[0047] The lower mold base 3 is provided with a through hole 12 for the drive block 5 to pass through, and the through hole 12 is located directly below the drive block 5. When the drive block 5 moves down, the through hole 12 can provide clearance for the drive block 5, allowing the drive block 5 to move down to the bottom and complete the maximum driving effect on the support slider 8.

[0048] The lower mold base 3 is provided with a first limiting block 11. The first limiting block 11 and the support slider 8 are located on both sides of the through hole 12. The vertical projections of the first limiting block 11, the drive block 5, and the support slider 8 are on a straight line. When the drive block 5 moves downward, the first limiting block 11 abuts against the side wall of the drive block 5. The first limiting block 11 guides and limits the drive block 5 in the longitudinal direction, ensuring that the drive block 5 moves downward in a vertical direction. When the drive block 5 moves upward, the first inclined surface 5-1 and the second inclined surface 8-1 completely disengage. The support slider 8 moves back to its original position under the action of the return cylinder 9. At this time, the other end of the support slider 8 abuts against the first limiting block 11. The first positioning block limits and / or stops the support slider 8.

[0049] The bottom of the punching die 7 is provided with a first plane 7-1 corresponding to the support slider 8. When the first plane 7-1 abuts against the top plane of the support slider 8 (or the top plane of the step 8-2 of the support slider 8), the support force of the support slider 8 on the punching die 7 is more balanced, more stable and more uniform, that is, the support slider 8 provides a better support effect for the punching die 7.

[0050] The top of the supporting slider 8 facing the punching die 7 has a stepped portion 8-2. When the supporting slider 8 moves below the punching die 7, the top of the stepped portion 8-2 abuts against the first plane 7-1 of the punching die 7. When the supporting slider 8 moves away from below the punching die 7 and returns to its original position, there is a gap between the top of the stepped portion 8-2 and the first plane 7-1 of the punching die 7. The existence of the gap makes it easier for the operator to put the metal tube 1 on the punching die 7 and / or remove the metal tube 1 from the punching die 7, that is, to more conveniently realize the loading and unloading of parts, improve the working efficiency of loading and unloading parts, and thus significantly improve the production cycle and increase production efficiency.

[0051] As the return cylinder 9 moves the support slider 8 horizontally to directly below the punching die 7, the vertical surface 8-2-1 behind the step abuts against the arc surface 7-2 of the punching die 7, helping the support slider 8 to reach its upper limit and / or stop in the horizontal direction. Once the support slider 8 stops, it means that the support slider 8 has moved into position, that is, the top of the step 8-2 abuts against the first plane 7-1 of the punching die 7.

[0052] The horizontal projection length of the drive block 5 is L1, the horizontal projection length of the support slider 8 is L2, the horizontal projection length of the end of the first plane 7-1 near the first limit block 11 from the side of the first limit block 11 is L3, and the horizontal projection length of the other end of the first plane 7-1 away from the side of the first limit block 11 from the side of the first limit block 11 is L4. The value of L1 plus L2 is greater than or equal to the value of L4, and the value of L2 is less than the value of L3. When the support slider 8 abuts against the punching die 7, the support slider 8 completely covers the bottom of the punching die 7 (e.g., the first plane 7-1). The support slider 8 can provide sufficient support force for the punching die 7. When the support slider 8 moves back to its original position, the support slider 8 separates from the punching die 7, and there is enough space between them to facilitate the operator to install or remove the metal tube 1, thereby improving the processing efficiency of the entire punching die.

[0053] The lower die base 3 is also provided with a guide base plate 14-3 and two guide side plates 14-2. The top of the two guide side plates 14-2 is connected to the guide top plate 14-1. The guide base plate 14-3, the two guide side plates 14-2 and the guide top plate 14-1 together form a guide space 14 for supporting the back-and-forth translation of the slider 8, ensuring that the trajectory of the back-and-forth translation of the slider 8 remains unchanged, ensuring that the slider 8 can be precisely matched with the punching die 7 (i.e., the slider 8 abuts against the first plane 7-1 of the punching die 7), and ensuring that the slider 8 provides a more stable and uniform support force for the punching die 7.

[0054] The lower mold base 3 is also provided with a second limiting block 13. The return cylinder 9 is connected to the lower mold base 3 through the mounting base 10. The other end of the return cylinder 9 away from the moving end abuts against the second limiting block 13. The second limiting block 13 provides support force for the return cylinder 9, so that the return cylinder 9 can push the support slider 8 towards the first limiting block 11 until the support slider 8 abuts against the first limiting block 11 (that is, the support slider 8 moves back to its original position), thus completing the limiting operation of the support slider 8.

[0055] In this embodiment 1, a movable support mechanism for a metal tube punching die works in conjunction with the stamping die as follows: First, the return cylinder 9 pushes the support slider 8 along the guide space 14 to abut against the first limit block 11 (i.e., in its original position). At this time, there is a gap between the support slider 8 and the punching die 7, which allows the operator to quickly put the metal tube 1 onto the punching die 7, achieving rapid loading. Second, the punching die is started, and the upper die base 2 moves down synchronously with the drive block 5 and the punch 4. The first inclined surface 5-1 and the second inclined surface 5-1... The inclined surface 8-1 first contacts and is pushed by the first inclined surface 5-1 to move the second inclined surface 8-1 and the support slider 8 towards the punching die 7; in the third step, the upper die base 2 continues to move downward with the drive block 5. When the first inclined surface 5-1 and the second inclined surface 8-1 are misaligned (that is, the part of the drive block 5 above the first inclined surface 5-1 is stuck between the first limit block 11 and the support slider 8), the top of the step part 8-2 of the support slider 8 completely abuts against the first plane 7-1. At this time, the punch 4 abuts against the metal tube 1; in the fourth step... The upper die base 2, carrying the driving block 5, continues to move downwards. The bottom end of the driving block 5 is embedded in the through hole 12. The punch 4, in conjunction with the punching die 7, completes the punching operation on the metal tube 1 (at this time, the upper and lower outer limit blocks 15 of the stamping die abut against each other, indicating that the punching is complete; the upper die base 2 can be guided vertically using the outer guide mechanism 16 during its up-and-down movement); in the fifth step, the upper die base 2, carrying the driving block 5, begins to move upwards. The first inclined surface 5-1 and the second inclined surface 8-1 correspond, and the first inclined surface 5-1 gradually becomes the second inclined surface 8-1. With the space provided by surface 8-1, the return cylinder 9 pushes the support slider 8 towards the first limiting block 11 until the first inclined surface 5-1 and the second inclined surface 8-1 are completely separated (that is, the part of the drive block 5 above the first inclined surface 5-1 is completely disengaged from the first limiting block 11 and the support slider 8). The support slider 8 abuts against the first limiting block 11. At this time, there is a gap between the support slider 8 and the punching die 7, which allows the operator to quickly remove the metal tube 1 from the punching die 7, achieving rapid part removal. By utilizing a movable support mechanism for metal tube punching dies, the production cycle is significantly improved by simply fitting the metal tube 1 onto the punching die 7, with a punching frequency of approximately 10 times / minute. This improves production efficiency and ensures the punching quality of the metal tube 1, making it suitable for low-pressure oil pipes, shock absorber components, etc.

[0056] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0058] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A movable support mechanism for a metal pipe punching die, wherein the metal pipe punching die includes an upper die base (2) and a lower die base (3), the upper die base (2) is provided with a punch (4) for punching a metal pipe (1), the lower die base (3) is provided with a mounting block (6), the mounting block (6) is provided with a punching die (7), the punch (4) and the punching die (7) correspond to each other, characterized in that: The active support mechanism includes a drive block (5) for driving the support slider (8) to translate to below the punching die (7), a support slider (8) for supporting the punching die (7), and a return cylinder (9) for driving the support slider (8) to translate back to its original position. The top of the drive block (5) is connected to the upper die base (2), and the bottom of the drive block (5) is provided with a first inclined surface (5-1). The return cylinder (9) is fixed on the lower mold base (3). The movable end of the return cylinder (9) is connected to one end of the support slider (8). The other end of the support slider (8) is provided with a second inclined surface (8-1). The first inclined surface (5-1) and the second inclined surface (8-1) are matched to realize the translation of the support slider (8) to the bottom of the punching die (7).

2. The movable support mechanism for a metal tube punching die according to claim 1, characterized in that: The lower mold base (3) is provided with a through hole (12) for the drive block (5) to pass through, and the through hole (12) is located directly below the drive block (5).

3. The movable support mechanism for a metal tube punching die according to claim 2, characterized in that: The lower mold base (3) is provided with a first limiting block (11). The first limiting block (11) and the support slider (8) are located on both sides of the through hole (12). The vertical projections of the first limiting block (11), the drive block (5) and the support slider (8) are on a straight line.

4. A movable support mechanism for a metal tube punching die according to claim 1, 2, or 3, characterized in that: The bottom of the punching die (7) is provided with a first plane (7-1) corresponding to the support slider (8).

5. The movable support mechanism for a metal tube punching die according to claim 4, characterized in that: The top of the support slider (8) facing the punching die (7) is provided with a step (8-2). When the support slider (8) moves to the bottom of the punching die (7), the top of the step (8-2) abuts against the first plane (7-1) of the punching die (7). When the support slider (8) moves away from the bottom of the punching die (7) and returns to its original position, there is a gap between the top of the step (8-2) and the first plane (7-1) of the punching die (7).

6. A movable support mechanism for a metal tube punching die according to claim 1, 2, 3, or 5, characterized in that: The lower mold base (3) is also provided with a guide bottom plate (14-3) and two guide side plates (14-2). The top of the two guide side plates (14-2) is connected to the guide top plate (14-1). The guide bottom plate (14-3), the two guide side plates (14-2) and the guide top plate (14-1) together form a guide space (14) for supporting the slider (8) to move back and forth.

7. The movable support mechanism for a metal tube punching die according to claim 6, characterized in that: The lower mold base (3) is also provided with a second limiting block (13). The return cylinder (9) is connected to the lower mold base (3) through the mounting base (10). The other end of the return cylinder (9) away from the moving end abuts against the second limiting block (13).

8. The movable support mechanism for a metal tube punching die according to claim 7, characterized in that: The first inclined surface (5-1) and the second inclined surface (8-1) have the same inclination angle; The horizontal projection length of the drive block (5) is L1, the horizontal projection length of the support slider (8) is L2, the horizontal projection length of the end of the first plane (7-1) near the first limit block (11) from the side of the first limit block (11) is L3, the horizontal projection length of the other end of the first plane (7-1) away from the side of the first limit block (11) is L4, the value of L1 plus L2 is greater than or equal to the value of L4, and the value of L2 is less than the value of L3.

9. The movable support mechanism for a metal tube punching die according to claim 8, characterized in that: The return cylinder (9) is a return nitrogen cylinder.

Images