Position-adjustable composite ejector rod mechanism

Abstract

The utility model discloses a position-adjustable composite ejector rod mechanism, which belongs to the technical field of ejector rod mechanisms and comprises a base and a material returning mechanism of a vertical punch press, the material returning mechanism is arranged on the base and comprises a mounting seat, a material returning rod, a rotating rod and a cam, the cam is rotatably arranged on the base, the rotating rod is rotatably arranged on the base, and the mounting seat is arranged on the mounting seat. The rotating rod is rotationally provided with a tight abutting wheel, the tight abutting wheel abuts against the cam, the rotating rod is fixedly connected with an ejector rod, the mounting base is arranged on the base, the mounting base is provided with a fixing hole and connected with a supporting plate, the supporting plate is fixedly connected with a sleeve, the sleeve is inserted into the fixing hole, the sleeve is in threaded connection with a threaded sleeve, and the threaded sleeve is provided with a moving rod in an inserted mode; one end of the moving rod extends out of the threaded sleeve to abut against the material ejecting rod, the material returning rod is fixedly connected to the other end of the moving rod and located in the fixing hole, the threaded sleeve is fixedly provided with a limiting plate, one end of the material returning rod abuts against the limiting plate, the limiting plate is arranged between the threaded sleeve and the material returning rod, and the diameter of the material returning rod is larger than that of the moving rod. The material returning mechanism has the advantage that the material returning force of the material returning mechanism can be adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of ejector mechanisms, in particular to a composite ejector mechanism with adjustable positions. Background Art

[0002] A vertical punch press is a stamping press. Stamping production is mainly for sheet metal. Through the mold, it can make blanking, punching, forming, drawing, trimming, fine blanking, shaping, riveting and extrusion, etc. It is widely used in various fields.

[0003] The common vertical punching machine now includes a machine body, a pressure mechanism, a mold and a material return mechanism. The workpiece to be punched is placed on the mold and positioned and fixed. The pressure mechanism is started, and the pressure mechanism punches the workpiece. When the workpiece is punched, the material return mechanism is started, and the workpiece is lifted from the mold to facilitate the staff to take it.

[0004] Regarding the above technical conditions, there is still a defect that the current material return mechanism is mostly realized by a fixed material return rod and an eccentric wheel. The eccentric wheel rotates, and the ejector rod moves up and down to lift the workpiece from the mold. However, the position of the material return rod in this material return method cannot be adjusted, making it difficult to control the ejection force of the workpiece by the ejector rod.

[0005] Based on this, the utility model designs a composite ejector mechanism with adjustable position to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a composite ejector mechanism with adjustable position to solve the above technical problems.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a composite ejector mechanism with adjustable position, comprising a base and a material ejection mechanism of a vertical punch press, wherein the material ejection mechanism is arranged on the base, and the material ejection mechanism comprises a mounting seat, a material ejection rod, a rotating rod and a cam, wherein the cam is rotatably arranged on the base, the rotating rod is rotatably arranged on the base, a retaining wheel is rotatably arranged on the rotating rod, the retaining wheel abuts against the cam, the rotating rod is fixedly connected with the ejector rod, the mounting seat is arranged on the base, the mounting seat is provided with a fixing hole, and the mounting seat is provided with a fixing hole. The mounting seat is connected to a support plate, the support plate is fixedly connected to a sleeve, the sleeve is inserted in the fixing hole, the sleeve is threadedly connected to a screw sleeve, the screw sleeve is inserted with a moving rod, one end of the moving rod extends outside the screw sleeve to abut against the ejecting rod, the material return rod is fixedly connected to the other end of the moving rod, the material return rod is located in the fixing hole, the screw sleeve is fixedly provided with a limiting plate, one end of the material return rod abuts against the limiting plate, the limiting plate is between the screw sleeve and the material return rod, and the diameter of the material return rod is larger than the diameter of the moving rod.

[0008] Preferably, the threaded sleeve is fixedly connected with an adjusting ring.

[0009] Preferably, the screw sleeve is provided with a limiting groove, the movable rod sleeve is provided with a spring, one end of the spring is fixedly connected to the movable rod, and the other end of the spring is fixedly connected to the limiting groove.

[0010] Preferably, a buffer pad is fixedly provided on the limiting plate, and the buffer pad presses against the screw sleeve.

[0011] Preferably, a limiting tube is fixedly arranged in the fixing hole, the limiting tube is sleeved on the material return rod, the material return rod is fixedly connected with a fixing rod, and the fixing rod is located in the limiting tube.

[0012] Preferably, the threaded sleeve is threadedly connected with a locking nut, the locking nut abuts against the support plate, and the locking nut is between the support plate and the adjustment ring.

[0013] Preferably, one end of the moving rod away from the material ejecting rod is fixedly connected with an auxiliary block, the material ejecting rod abuts against the auxiliary block, and the diameter of the auxiliary block is greater than the diameter of the moving rod.

[0014] To sum up, the present application has the following beneficial technical effects: when the position of the material return rod is to be adjusted, the threaded sleeve is rotated, and the sleeve moves up and down in the sleeve; when the sleeve moves upward in the sleeve, the limit plate moves upward in the fixed hole, and the position of the material return rod in the fixed hole moves upward as the limit plate moves upward; when the sleeve moves downward in the sleeve, the limit plate moves downward in the fixed hole, and the position of the material return rod in the fixed hole also moves downward as the limit plate moves downward, thereby achieving the effect of adjusting the position of the material return rod in the material return mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 Schematic diagram of the cross-sectional structure of the material-returning mechanism of this embodiment when the material-returning rod is not working;

[0017] Figure 2 This is a schematic cross-sectional structure diagram of the material-removing rod of the material-removing mechanism of this embodiment when it is working;

[0018] Figure 3 for Figure 1 A magnified schematic diagram of center A.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Fixing rod; 2. Limiting tube; 3. Mounting seat; 4. Fixing hole; 5. Sleeve; 6. Support plate; 7. Locking nut; 8. Adjusting ring; 9. Auxiliary block; 10. Ejecting rod; 11. Rotating rod; 12. Clamping wheel; 13. Cam; 14. Moving rod; 15. Spring; 16. Screw sleeve; 17. Limiting plate; 18. Ejecting rod; 19. Limiting groove; 20. Buffer pad. DETAILED DESCRIPTION

[0021] 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 of 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.

[0022] The following is combined with Figure 1-3 This application is described in further detail.

[0023] A composite ejector mechanism with adjustable position includes a base (not shown) of a vertical punch press and a material-removing mechanism, the material-removing mechanism is arranged on the base, the material-removing mechanism includes a mounting seat 3, a material-removing rod 18, a rotating rod 11 and a cam 13, and the cam 13 is rotatably arranged on the base. The rotating rod 11 is rotatably arranged on the base, and a tightening wheel 12 is rotatably arranged on one end of the rotating rod 11, and the tightening wheel 12 abuts against the cam 13.

[0024] The other end of the rotating rod 11 is fixedly provided with a push rod 10. When the cam 13 rotates clockwise, the pressing wheel 12 rotates with the rotating rod 11, and the height of the push rod 10 at one end of the rotating rod 11 rises; when the cam 13 rotates counterclockwise, the height of the push rod 10 decreases. The mounting seat 3 is provided on the base, and a fixing hole 4 is provided on the mounting seat 3. The mounting seat 3 is fixedly connected with a support plate 6, and the support plate 6 is fixedly connected with a sleeve 5, and the sleeve 5 is inserted and arranged in the fixing hole 4.

[0025] The sleeve 5 is connected with a screw sleeve 16, the outer wall of the screw sleeve 16 is provided with a fine pitch thread, and the outer wall of the screw sleeve 16 is threadedly connected to the inner wall of the sleeve 5. The screw sleeve 16 is plugged with a moving rod 14, one end of the moving rod 14 extends outside the screw sleeve 16 to abut against the ejecting rod 10, and the ejecting rod 18 is fixedly connected to the other end of the moving rod 14, and the ejecting rod 18 is located in the fixing hole 4.

[0026] A limiting plate 17 is fixedly provided at one end of the screw sleeve 16 away from the ejecting rod 10. The diameter of the ejecting rod 18 is larger than the diameter of the moving rod 14. The end of the ejecting rod 18 close to the moving rod 14 is pressed against the limiting plate 17. The limiting plate 17 is between the screw sleeve 16 and the ejecting rod 18. A buffer pad 20 is fixedly connected to the limiting plate 17. The buffer pad 20 is pressed against the screw sleeve 16 and plays a buffering role.

[0027] When unloading the material, the unloading mechanism is set under the mold, and the cam 13 is rotated clockwise. The clamping wheel 12 rotates with the rotating rod 11 and the ejecting rod 10 under the action of the cam 13. The ejecting rod 10 pushes the moving rod 14 upward. One end of the unloading rod 18 is pushed upward by the moving rod 14 and extends to the outside of the mounting seat 3. As the unloading rod 18 extends upward, the workpiece in the mold is pushed up, which is convenient for the staff to take it.

[0028] A limiting groove 19 is provided on the screw sleeve 16, and a spring 15 is provided on the moving rod 14. One end of the spring 15 is fixedly connected to the moving rod 14, and the other end of the spring 15 is fixedly connected to the limiting groove 19. The spring 15 is used to press the moving rod 14 downward, and the moving rod 14 contacts the ejecting rod 10, so that the ejecting rod 10 is continuously in contact with the cam 13.

[0029] An adjusting ring 8 is fixedly arranged at one end of the screw sleeve 16 near the ejector rod 10, and the adjusting ring 8 facilitates the threaded rotation of the screw sleeve 16. A locking nut 7 is threadedly connected to the screw sleeve 16, and the locking nut 7 abuts against the sleeve 5. The locking nut 7 is between the sleeve 5 and the adjusting ring 8, and the locking nut 7 locks the screw sleeve 16 on the sleeve 5, thereby increasing the stability of the screw sleeve 16 on the sleeve 5.

[0030] An auxiliary block 9 is fixedly connected to one end of the moving rod 14 close to the lifting rod 10, and the lifting rod 10 abuts against the auxiliary block 9. The diameter of the auxiliary block 9 is larger than the diameter of the moving rod 14. The auxiliary block 9 increases the contact area between the moving rod 14 and the lifting rod 10, making it easier for the lifting rod 10 to lift the moving rod 14.

[0031] A limiting tube 2 is fixedly provided at one end of the fixing hole 4 away from the sleeve 5, and the limiting tube 2 is sleeved on the material return rod 18. One end of the material return rod 18 away from the moving rod 14 is fixedly connected with a fixing rod 1. The diameter of the fixing rod 1 is smaller than the diameter of the material return rod 18. When the material return rod 18 moves up and down in the fixing hole 4, the limiting tube 2 makes the movement stability of the material return rod 18 better, and the size of the fixing rod 1 is more convenient for lifting the workpiece in the mold.

[0032] The implementation principle of this embodiment is: when the position of the material return rod 18 is to be adjusted, the screw sleeve 16 is threadedly rotated, and the screw sleeve 16 moves up and down in the sleeve 5. When the screw sleeve 16 moves upward in the sleeve 5, the limit plate 17 moves upward in the fixing hole 4, and the position of the material return rod 18 in the fixing hole 4 moves upward as the limit plate 17 moves upward; when the screw sleeve 16 moves downward in the sleeve 5, the limit plate 17 moves downward in the fixing hole, and the position of the material return rod 18 in the fixing hole 4 also moves downward as the limit plate 17 moves downward, thereby achieving the effect of adjusting the position of the material return rod 18 in the material return mechanism.

[0033] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0035] 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 composite ejector mechanism with adjustable position, comprising a base and a material ejection mechanism of a vertical punch press, characterized in that: The material-removing mechanism is arranged on the base, and comprises a mounting seat (3), a material-removing rod (18), a rotating rod (11) and a cam (13); the cam (13) is rotatably arranged on the base; the rotating rod (11) is rotatably arranged on the base; the rotating rod (11) is rotatably arranged with a pressing wheel (12); the pressing wheel (12) abuts against the cam (13); the rotating rod (11) is fixedly connected with a material-removing rod (10); the mounting seat (3) is arranged on the base; the mounting seat (3) is provided with a fixing hole (4); the mounting seat (3) is connected with a supporting plate (6); the supporting plate (6) is fixedly connected with a sleeve (5); the sleeve (5) is plugged into the mounting seat (3); In the fixing hole (4), the sleeve (5) is threadedly connected with a screw sleeve (16), and the screw sleeve (16) is plugged with a moving rod (14). One end of the moving rod (14) extends outside the screw sleeve (16) to abut against the ejecting rod (10), and the ejecting rod (18) is fixedly connected to the other end of the moving rod (14). The ejecting rod (18) is located in the fixing hole (4), and the screw sleeve (16) is fixedly provided with a limiting plate (17). One end of the ejecting rod (18) abuts against the limiting plate (17). The limiting plate (17) is between the screw sleeve (16) and the ejecting rod (18), and the diameter of the ejecting rod (18) is greater than the diameter of the moving rod (14).

2. The position-adjustable composite ejector mechanism according to claim 1, characterized in that: The screw sleeve (16) is fixedly connected with an adjusting ring (8).

3. The position-adjustable composite ejector mechanism according to claim 1, characterized in that: The screw sleeve (16) is provided with a limiting groove (19), the moving rod (14) is sleeved with a spring (15), one end of the spring (15) is fixedly connected to the moving rod (14), and the other end of the spring (15) is fixedly connected to the limiting groove (19).

4. The position-adjustable composite ejector mechanism according to claim 1, characterized in that: A buffer pad (20) is fixedly arranged on the limiting plate (17), and the buffer pad (20) is pressed tightly against the screw sleeve (16).

5. The position-adjustable composite ejector mechanism according to claim 1, characterized in that: A limit tube (2) is fixedly arranged in the fixing hole (4), the limit tube (2) is sleeved on the material return rod (18), a fixing rod (1) is fixedly connected to the material return rod (18), and the fixing rod (1) is located in the limit tube (2).

6. The position-adjustable composite ejector mechanism according to claim 2, characterized in that: The threaded sleeve (16) is threadedly connected with a locking nut (7), the locking nut (7) abuts against the support plate (6), and the locking nut (7) is between the support plate (6) and the adjustment ring (8).

7. The position-adjustable composite ejector mechanism according to claim 1, characterized in that: An end of the moving rod (14) away from the material ejecting rod (18) is fixedly connected to an auxiliary block (9), the material ejecting rod (10) abuts against the auxiliary block (9), and the diameter of the auxiliary block (9) is greater than the diameter of the moving rod (14).

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