Multi-position mechanical ejector pin device

Abstract

The utility model provides a multi-position type mechanical ejector pin device which comprises a base, a fixing frame is fixedly connected to the base, a rotating groove is formed in the end of the fixing frame, a rotating ring is rotationally connected in the rotating groove, a main ejector pin is fixedly connected to the outer end of the rotating ring, a ball is embedded in the end of the main ejector pin, and the ball is fixedly connected to the outer end of the main ejector pin. A restraining frame is fixedly connected to the side face of the fixing frame, a sliding groove is formed in one side of the restraining frame, and a plurality of lock holes are formed in the two sides of the sliding groove. The utility model has the advantages that: when in use, the main ejector pin is propped against the required position of a workpiece; when the workpiece rotates, the ball rotates in the main ejector pin, and the main ejector pin rotates on the fixing frame, so that double rotation protection is realized, and the workpiece can be prevented from being damaged and abraded by the rotating assembly. The auxiliary ejector pin can restrain the workpiece, when the workpiece inclines in the rotating process, the auxiliary ejector pin abuts against the workpiece to prevent the workpiece from continuously inclining, and the fixing effect of the ejector pin device can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical ejector pins, in particular to a multi-position mechanical ejector pin device. Background Art

[0002] In mechanical production, when processing parts, an ejector pin is usually used to hold the part to be processed for processing. A multi-dimensional ejector pin can be adjusted to multiple positions.

[0003] In order to improve the stability of the ejector pin following the rotation of the workpiece and avoid serious wear between the ejector pin and the workpiece caused by damage to some rotating components, in an existing multi-position mechanical ejector pin device, two rotation directions are formed by embedding ball bearings at the end of the rotating ejector pin to protect the workpiece from wear. However, during the rotation of the workpiece, lateral inclination sometimes occurs. When using the ball bearings to support the workpiece, it is difficult to correct the inclination amount, resulting in the inability to timely straighten the workpiece when it rotates and inclines, and the inclination angle may further increase. The fixing effect of the ejector pin needs to be improved. For this reason, a multi-position mechanical ejector pin device is proposed for improvement. Summary of the Utility Model

[0004] The purpose of the present utility model aims to solve at least one of the technical defects.

[0005] Therefore, an object of the present utility model is to provide a multi-position mechanical ejector pin device to solve the problems mentioned in the background art and overcome the deficiencies existing in the prior art.

[0006] To achieve the above object, an embodiment of one aspect of the present utility model provides a multi-position mechanical ejector pin device, including a base, a fixed frame fixedly connected to the base, a rotating groove opened at the end of the fixed frame, a rotating ring rotatably connected in the rotating groove, a main ejector pin fixedly connected to the outer end of the rotating ring, and a ball bearing embedded at the end of the main ejector pin;

[0007] A constraint frame is fixedly connected to the side of the fixed frame, a sliding groove is opened on one side of the constraint frame, a plurality of locking holes are opened on both sides of the sliding groove, a movable frame is inserted into the constraint frame, an installation groove is opened at the inner end of the movable frame, a dial rod penetrating through the sliding groove is inserted into the installation groove, a locking block is fixedly connected to the top surface of the dial rod, a spring is arranged between the dial rod and the movable frame, and a secondary ejector pin is rotatably connected to the end of the movable frame.

[0008] Preferably, according to any of the above solutions, a plurality of locking holes are opened on the base, and the fixed frame is fixedly connected to the base through bolts cooperating with the locking holes.

[0009] Preferably, according to any of the above solutions, the rotating ring is fixedly connected to the main ejector pin through a connecting rod, and both the main ejector pin and the secondary ejector pin adopt a conical structure.

[0010] The above technical solution is adopted: the base provides an installation platform for the upper structure, and a number of locking holes are opened on it. The fixing frame is fixed to the base by bolts, so as to facilitate the adjustment of the position of the fixing frame when needed. The fixing frame provides an installation platform for the main ejector, constraint frame and other structures. A rotation groove is opened at the end of the fixing frame, and the main ejector is connected to the end of the fixing frame with the help of a rotating ring, so that it can rotate based on the fixing frame. The main ejector performs the main fixing work for the workpiece. A ball is embedded at the end of the main ejector, and the ball can rotate in the main ejector driven by the workpiece, thus achieving double rotation protection and preventing the rotating component from damaging and wearing the workpiece.

[0011] Preferably, any of the above solutions has a plurality of constraint frames which are evenly arranged around the fixing frame, and the constraint frames have a rectangular structure.

[0012] Preferably, any of the above schemes is that the slide groove is provided in the middle of the side surface of the restraint frame, and the movable frame adopts an L-shaped structure.

[0013] The above technical solution is adopted: the constraint frame provides constraints for the movable frame to prevent the movable frame from moving in other directions. Several constraint frames are evenly arranged around the fixed frame, providing conditions for the installation of several movable frames. The slide groove can be used for the lever to move in order to adjust the position of the movable frame, and the lock hole is used to cooperate with the lock block to lock the position of the movable frame. The slide groove is opened in the middle of the constraint frame to facilitate the lever to drive the movable frame to move in a balanced manner. The movable frame provides an installation platform for the auxiliary ejector and can drive the auxiliary ejector to move.

[0014] Preferably, any of the above schemes is that the lock hole and the lock block both adopt a rectangular structure, and a slot is provided in the middle of the lever.

[0015] Preferably, any of the above schemes is that a rod inserted into a slot is fixedly connected in the installation groove, and a ball is also embedded in the end of the auxiliary ejector pin.

[0016] The above technical solution is adopted: when the position of the auxiliary ejector needs to be adjusted, the lever is pressed inward so that the lever drives the locking block into the installation slot, at which time the movable frame is unlocked and the spring is compressed. Then the lever can be moved as needed to drive the movable frame to move horizontally. After the auxiliary ejector is adjusted to a suitable position, the lever is released, and the spring pushes the lever and the locking block to move, and the locking block moves to the lock hole at the position to lock the movable frame. The auxiliary ejector can constrain the workpiece. When the workpiece tilts during rotation, the auxiliary ejector will hold the workpiece to prevent it from tilting further, which is conducive to improving the fixing effect of the ejector device.

[0017] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0018] 1. The multi-position mechanical ejector pin device is provided with structures such as a fixed frame, a main ejector pin, a ball, a restraint frame, a movable frame, and a sub-ejector pin. When in use, the main ejector pin is pressed against the required position of the workpiece. When the workpiece rotates, the ball rotates inside the main ejector pin, and the main ejector pin rotates on the fixed frame, thus achieving double rotation protection and avoiding damage and wear to the workpiece by the rotating components. The sub-ejector pin can restrain the workpiece. When the workpiece tilts during rotation, the sub-ejector pin will hold the workpiece to prevent it from tilting further, which is beneficial to improving the fixing effect of the ejector pin device.

[0019] 2. The multi-position mechanical ejector pin device is provided with structures such as a restraint frame, a sliding groove, a locking hole, a lever, a locking block, and a spring. When it is necessary to adjust the position of the sub-ejector pin, press the lever inward so that the lever drives the locking block into the installation groove. At this time, the movable frame is unlocked and the spring is compressed. Then, the lever can be toggled as needed to drive the movable frame to move horizontally. After adjusting the sub-ejector pin to the appropriate position, release the lever, and the spring pushes the lever and the locking block to move. The locking block moves into the locking hole at its position to lock the movable frame. It can adjust the position of the sub-ejector pin as needed and is more flexible to use.

[0020] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0022] Figure 1 is a schematic structural diagram of the first perspective of the present utility model;

[0023] Figure 2 is a schematic structural diagram of the second perspective of the present utility model;

[0024] Figure 3 is a schematic structural diagram of the third perspective of the present utility model;

[0025] Figure 4 is a schematic sectional view of the restraint frame of the present utility model.

[0026] In the figure: 1 - base, 2 - fixed frame, 3 - rotating groove, 4 - rotating ring, 5 - main ejector pin, 6 - ball, 7 - restraint frame, 8 - sliding groove, 9 - locking hole, 10 - movable frame, 11 - installation groove, 12 - lever, 13 - locking block, 14 - spring, 15 - sub-ejector pin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation of the present utility model.

[0028] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] As Figures 1 to 4 shown, the present utility model includes a base 1, a fixing frame 2 is fixedly connected to the base 1, a rotating groove 3 is opened at the end of the fixing frame 2, a rotating ring 4 is rotatably connected in the rotating groove 3, a main ejector pin 5 is fixedly connected to the outer end of the rotating ring 4, and a ball 6 is embedded at the end of the main ejector pin 5;

[0030] A constraint frame 7 is fixedly connected to the side of the fixing frame 2, a sliding groove 8 is opened on one side of the constraint frame 7, a plurality of locking holes 9 are opened on both sides of the sliding groove 8, a movable frame 10 is inserted into the constraint frame 7, an installation groove 11 is opened at the inner end of the movable frame 10, a lever 12 penetrating through the sliding groove 8 is inserted into the installation groove 11, a locking block 13 is fixedly connected to the top surface of the lever 12, a spring 14 is arranged between the lever 12 and the movable frame 10, and a secondary ejector pin 15 is rotatably connected to the end of the movable frame 10.

[0031] Embodiment 1: A plurality of locking holes are opened on the base 1, and the fixing frame 2 is fixedly connected to the base 1 by bolts in cooperation with the locking holes. The rotating ring 4 is fixedly connected to the main ejector pin 5 through a connecting rod, and both the main ejector pin 5 and the secondary ejector pin 15 adopt a conical structure. The base 1 provides an installation platform for the upper structure, and a plurality of locking holes are opened on it, and the fixing frame 2 is fixedly connected to the base 1 by bolts, which is convenient to adjust the position of the fixing frame 2 when needed. The fixing frame 2 provides an installation platform for structures such as the main ejector pin 5 and the constraint frame 7. A rotating groove 3 is opened at the end of the fixing frame 2, and in cooperation with the rotating ring 4, the main ejector pin 5 is rotatably connected to the end of the fixing frame 2, so that it can rotate based on the fixing frame 2. The main ejector pin 5 performs the main fixing work on the workpiece. A ball 6 is embedded at the end of the main ejector pin 5, and the ball 6 can rotate in the main ejector pin 5 under the drive of the workpiece, so as to achieve double rotation protection and avoid damage and wear of the rotating components to the workpiece.

[0032] Embodiment 2: There are several constraint frames 7 and they are evenly arranged around the fixed frame 2, and the constraint frames 7 adopt a rectangular structure. The slide groove 8 is opened in the middle of the side of the constraint frame 7, and the movable frame 10 adopts an L-shaped structure. The constraint frame 7 provides constraints for the movable frame 10 to prevent the movable frame 10 from being displaced in other directions. Several constraint frames 7 are evenly arranged around the fixed frame 2, providing conditions for the installation of several movable frames 10. The slide groove 8 can be used for the lever 12 to move so as to adjust the position of the movable frame 10, and the lock hole 9 is used to cooperate with the lock block 13 to lock the position of the movable frame 10. The slide groove 8 is opened in the middle of the constraint frame 7, so that the lever 12 can drive the movable frame 10 to move in a balanced manner. The movable frame 10 provides an installation platform for the auxiliary ejector 15 and can drive the auxiliary ejector 15 to move.

[0033] Embodiment 3: The lock hole 9 and the lock block 13 are both rectangular structures, and a slot is provided in the middle of the lever 12. A plug rod inserted in the slot is fixedly connected in the installation slot 11, and a ball 6 is also embedded in the end of the auxiliary ejector 15. When the position of the auxiliary ejector 15 needs to be adjusted, the lever 12 is pressed inward so that the lever 12 drives the lock block 13 to enter the installation slot 11. At this time, the movable frame 10 is unlocked and the spring 14 is compressed. Then, the lever 12 can be moved as needed to drive the movable frame 10 to move horizontally. After the auxiliary ejector 15 is adjusted to a suitable position, the lever 12 is released, and the spring 14 pushes the lever 12 and the lock block 13 to move. The lock block 13 moves to the lock hole 9 at the position, and the movable frame 10 is locked. The auxiliary ejector 15 can constrain the workpiece. When the workpiece tilts during rotation, the auxiliary ejector 15 holds the workpiece to prevent it from tilting further, which is conducive to improving the fixing effect of the ejector device.

[0034] The working principle of the utility model is as follows:

[0035] S1. Push the main ejector pin 5 against the desired position of the workpiece. When the workpiece rotates, the ball 6 rotates inside the main ejector pin 5, and the main ejector pin 5 rotates on the fixed frame 2, thus achieving double rotation protection to prevent the rotating components from damaging and wearing the workpiece;

[0036] S2, the auxiliary ejector 15 constrains the workpiece. When the workpiece tilts during rotation, the auxiliary ejector 15 holds the workpiece to prevent it from tilting further.

[0037] S3. When the position of the auxiliary ejector 15 needs to be adjusted, the lever 12 is pressed inward so that the lever 12 drives the locking block 13 to enter the installation slot 11. At this time, the movable frame 10 is unlocked and the spring 14 is compressed. Then, the lever 12 can be moved as needed to drive the movable frame 10 to move horizontally. After the auxiliary ejector 15 is adjusted to a suitable position, the lever 12 is released, and the spring 14 pushes the lever 12 and the locking block 13 to move. The locking block 13 moves to the locking hole 9 at the location, and the movable frame 10 is locked.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] 1. The multi-position mechanical ejector device is provided with a fixed frame 2, a main ejector 5, a ball 6, a constraint frame 7, a movable frame 10, an auxiliary ejector 15 and other structures. When in use, the main ejector 5 is pressed against the required position of the workpiece. When the workpiece rotates, the ball 6 rotates in the main ejector 5, and the main ejector 5 rotates on the fixed frame 2, so that double rotation protection is achieved to prevent the rotating components from damaging and wearing the workpiece. The auxiliary ejector 15 can constrain the workpiece. When the workpiece tilts during rotation, the auxiliary ejector 15 holds the workpiece to prevent it from continuing to tilt, which is conducive to improving the fixing effect of the ejector device.

[0040] 2. The multi-position mechanical ejector device is provided with structures such as a constraint frame 7, a slide slot 8, a lock hole 9, a lever 12, a lock block 13 and a spring 14. When the position of the auxiliary ejector 15 needs to be adjusted, the lever 12 is pressed inward so that the lever 12 drives the lock block 13 to enter the installation slot 11. At this time, the movable frame 10 is unlocked and the spring 14 is compressed. Then, the lever 12 can be moved as needed to drive the movable frame 10 to move horizontally. After the auxiliary ejector 15 is adjusted to a suitable position, the lever 12 is released, and the spring 14 pushes the lever 12 and the lock block 13 to move. The lock block 13 moves to the lock hole 9 at the position to lock the movable frame 10. The position of the auxiliary ejector 15 can be adjusted as needed, and the use is more flexible.

Claims

1. A multi-position mechanical ejector device, comprising a base (1); characterized in that: The base (1) is fixedly connected to a fixing frame (2), an end of the fixing frame (2) is provided with a rotation groove (3), a rotating ring (4) is rotatably connected in the rotating groove (3), an outer end of the rotating ring (4) is fixedly connected to a main ejector pin (5), and an end of the main ejector pin (5) is embedded with a ball (6); A restraining frame (7) is fixedly connected to the side of the fixed frame (2), a sliding groove (8) is provided on one side of the restraining frame (7), a plurality of locking holes (9) are provided on both sides of the sliding groove (8), a movable frame (10) is inserted into the restraining frame (7), a mounting groove (11) is provided at the inner end of the movable frame (10), a lever (12) which passes through the sliding groove (8) is inserted into the mounting groove (11), a locking block (13) is fixedly connected to the top surface of the lever (12), a spring (14) is provided between the lever (12) and the movable frame (10), and a secondary ejector pin (15) is rotatably connected to the end of the movable frame (10).

2. The multi-position mechanical ejector device according to claim 1, characterized in that: The base (1) is provided with a plurality of locking holes, and the fixing frame (2) is fixedly connected to the base (1) by means of bolts matching the locking holes.

3. The multi-position mechanical ejector device according to claim 2, characterized in that: The rotating ring (4) is fixedly connected to the main ejector pin (5) via a connecting rod, and both the main ejector pin (5) and the auxiliary ejector pin (15) have a conical structure.

4. The multi-position mechanical ejector device according to claim 3, characterized in that: There are a plurality of the constraint frames (7) which are evenly arranged around the fixing frame (2), and the constraint frames (7) are of rectangular structure.

5. The multi-position mechanical ejector device according to claim 4, characterized in that: The slide groove (8) is arranged in the middle of the side surface of the restraining frame (7), and the movable frame (10) adopts an L-shaped structure.

6. The multi-position mechanical ejector device according to claim 5, characterized in that: The locking hole (9) and the locking block (13) both adopt a rectangular structure, and a slot is provided in the middle of the lever (12).

7. The multi-position mechanical ejector device according to claim 6, characterized in that: The installation groove (11) is fixedly connected with an insertion rod inserted into a slot, and the end of the auxiliary ejector pin (15) is also embedded with a ball (6).

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