Bar ejection machine fixture

Abstract

The utility model discloses bar ejection machine tool fixture, include: bottom plate, the upper end of bottom plate is installed with the placement platform, the upper fixedly connected of placement platform has the placement frame, the inside of placement platform is provided with the cavity, the inner wall of cavity is provided with the ejection subassembly, the upper end of placement platform is opened with the sliding slot, and the number of sliding slot has three and is in the circular array distribution, the upper end of placement platform is provided with the limit component. The utility model discloses through ejection subassembly and limit component, can be clamped when bar processing, guarantees the stability in the process of processing, can cancel the clamping of bar to bar and eject simultaneously after processing, improves the processing efficiency of bar.

Description

Technical Field

[0001] This utility model relates to the field of bar processing technology, specifically a bar ejection machine tool fixture. Background Technology

[0002] A bar refers to a cylindrical (or other regular cross-section) metal or non-metal material blank with a certain length and diameter, made through processes such as casting, rolling or forging. It is usually used for subsequent machining (such as turning, milling, grinding, drilling, etc.) to make various parts.

[0003] Existing clamps for holding bar stock mostly use a fixed structure, meaning the bar stock is clamped manually or by a simple mechanical structure before processing. After processing, the clamping device must be manually released, the processed bar stock removed, and a new bar stock placed and manually clamped again. The entire process involves long intervals between clamping and unloading, which is time-consuming and labor-intensive. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a bar ejection machine tool fixture. Through the ejection component and the limiting component, the bar can be clamped during processing to ensure stability during the processing. At the same time, after processing, the clamping of the bar can be released and the bar can be ejected, thereby improving the processing efficiency of the bar.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a bar ejection machine tool fixture, comprising: a base plate, a placement platform installed on the upper end of the base plate, a placement frame fixedly connected above the placement platform, a cavity provided inside the placement platform, an ejection component provided on the inner wall of the cavity, a sliding groove provided at the upper end of the placement platform, and three sliding grooves arranged in a circular array, and a limit component provided at the upper end of the placement platform;

[0006] The ejection assembly includes a fixed frame and a rotating rod. The fixed frame is fixedly connected to the inner wall of the cavity. A motor is fixedly connected to the inner wall of the fixed frame. The output end of the motor passes through the fixed frame and is fixedly connected to a drive gear. The rotating rod is rotatably connected to the inner wall of the cavity. A driven gear is fixedly connected to the outer wall of the rotating rod. A threaded groove is formed on the upper outer wall of the rotating rod. A threaded sleeve is fitted onto the outer wall of the rotating rod, and the inner wall of the threaded sleeve is threadedly connected to the threaded groove. A sleeve is fixedly connected to the upper end of the threaded sleeve and fitted onto the outer wall of the rotating rod. An ejection plate is fixedly connected to the top end of the sleeve.

[0007] Preferably, the limiting component includes a guide rod and a slider. The guide rod is fixedly connected to the inner wall of the slide groove, and there are three guide rods and three sliders. The upper end of the slider is fixedly connected to a limiting arm, and a clamping plate is fixedly connected to one side of the limiting arm. An anti-slip pad is engaged on the clamping surface of the clamping plate. The lower end of the slider is fixedly connected to a connecting seat, and a connecting rod is rotatably connected to the inner wall of the connecting seat via a rotating shaft.

[0008] Preferably, the slider is adapted to and slidably connected to the inner wall of the groove, and the guide rod passes through the slider and is slidably connected to it.

[0009] Preferably, a connecting seat two is fixedly connected to the outer wall of the threaded sleeve, and the end of the connecting rod away from the connecting seat one is rotatably connected to the inner wall of the connecting seat two via a rotating shaft.

[0010] Preferably, the upper end of the placement platform has a through hole, and the sleeve passes through the through hole and is slidably connected thereto.

[0011] Preferably, one end of the limiting arm passes through the placement frame and is slidably connected thereto, and the upper end of the placement frame is provided with a placement hole. Beneficial effects

[0012] This utility model provides a fixture for a bar ejector machine. Compared with the prior art, it has the following advantages:

[0013] (1) The bar stock is ejected from the machine tool fixture. The limiting component clamps the bar stock through three clamping plates arranged in a circular array. The sliding block is guided to retract synchronously through the slide groove and guide rod, forming a uniform radial clamping force on the bar stock. The anti-slip pad prevents the bar stock from shaking or slipping during processing. At the same time, the limiting arm slides through the placement frame, further improving the clamping stability.

[0014] (2) The bar ejector tool fixture is driven by a motor and gear transmission. The threaded connection between the threaded groove and the threaded sleeve enables the smooth lifting and lowering of the ejector plate. The sleeve slides through the through hole to ensure that the ejection direction is perpendicular to the placement table and to prevent the bar from tilting when ejecting. Attached Figure Description

[0015] Figure 1 This is a front view of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the placement platform of this utility model;

[0017] Figure 3 This is a schematic diagram of the ejection assembly structure of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the sleeve of this utility model.

[0019] In the diagram: 1. Base plate; 2. Placement platform; 3. Placement frame; 4. Cavity; 5. Ejection assembly; 6. Slide groove; 7. Limiting assembly; 501. Fixing frame; 502. Rotating rod; 503. Motor; 504. Driving gear; 505. Driven gear; 506. Threaded groove; 507. Threaded sleeve; 508. Sleeve; 509. Ejection plate; 701. Guide rod; 702. Slider; 703. Limiting arm; 704. Clamping plate; 705. Anti-slip pad; 706. Connecting seat one; 707. Connecting rod; 5071. Connecting seat two; 201. Through hole; 301. Placement hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a technical solution: a bar ejection machine tool fixture, including: a base plate 1, a placement platform 2 installed on the upper end of the base plate 1, a placement frame 3 fixedly connected above the placement platform 2, a cavity 4 provided inside the placement platform 2, an ejection component 5 provided on the inner wall of the cavity 4, a sliding groove 6 opened at the upper end of the placement platform 2, and the number of sliding grooves 6 is three distributed in a circumferential array, and a limit component 7 is provided at the upper end of the placement platform 2;

[0022] The ejector assembly 5 includes a fixed frame 501 and a rotating rod 502. The fixed frame 501 is fixedly connected to the inner wall of the cavity 4. A motor 503, a three-phase AC asynchronous motor, is fixedly connected to the inner wall of the fixed frame 501, enabling forward and reverse rotation. The output end of the motor 503 passes through the fixed frame 501 and is fixedly connected to a drive gear 504. The rotating rod 502 is rotatably connected to the inner wall of the cavity 4. A driven gear 505 is fixedly connected to the outer wall of the rotating rod 502. A threaded groove 506 is formed on the upper outer wall of the rotating rod 502. A threaded sleeve 507 is fitted onto the outer wall of the rotating rod 502, and the inner wall of the threaded sleeve 507 is threadedly connected to the threaded groove 506. A sleeve 508 is fixedly connected to the upper end of the threaded sleeve 507 and fitted onto the outer wall of the rotating rod 502. An ejector plate 509 is fixedly connected to the top of the sleeve 508. The ejector assembly 5 can eject the processed material bar, improving the processing efficiency of the material bar.

[0023] The limiting assembly 7 includes guide rods 701 and sliders 702. Guide rods 701 are fixedly connected to the inner wall of the slide groove 6, and there are three guide rods 701 and three sliders 702. A limiting arm 703 is fixedly connected to the upper end of the slider 702. A clamping plate 704 is fixedly connected to one side of the limiting arm 703. An anti-slip pad 705 is engaged on the clamping surface of the clamping plate 704. A connecting seat 706 is fixedly connected to the lower end of the slider 702. A connecting rod 707 is rotatably connected to the inner wall of the connecting seat 706 via a rotating shaft. The limiting assembly 7 can limit the movement of the bar, improving the stability of the bar processing.

[0024] The slider 702 is fitted to and slidably connected to the inner wall of the groove 6, and the guide rod 701 passes through and slidably connects to the slider 702. The groove 6 and the guide rod 701 improve the stability of the slider 702 during sliding, thereby improving the stability of the limit arm 703 during movement.

[0025] The outer wall of the threaded sleeve 507 is fixedly connected to the connecting seat 5071, and the end of the connecting rod 707 away from the connecting seat 706 is rotatably connected to the inner wall of the connecting seat 5071 via a rotating shaft. The lifting and lowering motion of the threaded sleeve 507 is converted into the sliding motion of the slider 702 by the connecting rod 707.

[0026] The upper end of the placement platform 2 has a through hole 201, through which the sleeve 508 passes and is slidably connected. The through hole 201 improves the stability of the sleeve 508 when it is raised or lowered, and at the same time, the through hole 201 facilitates the ejector plate 509 to eject the material bar.

[0027] One end of the limiting arm 703 passes through and is slidably connected to the placement frame 3, and the upper end of the placement frame 3 is provided with a placement hole 301. The limiting arm 703 passing through the placement frame 3 facilitates the clamping of the material bar and improves the stability of the limiting arm 703 when moving. The placement hole 301 facilitates the placement of one end of the material bar into the placement frame 3.

[0028] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0029] During processing, the bar stock is vertically placed through the placement hole 301 of the placement frame 3, with its lower end positioned on the upper surface of the placement table 2. Then, the output end of the motor 503 is started, driving the drive gear 504 to rotate. Through gear meshing, the driven gear 505 and the rotating rod 502 rotate synchronously, causing the threaded sleeve 507 to move downward along the rotating rod 502, which in turn causes the sleeve 508 and the ejector plate 509 to descend synchronously. At this time, the connecting seat 2 5071 pulls the connecting seat 1 706 through the connecting rod 707, causing the three sliders 702 to slide synchronously in opposite directions along the guide rod 701 in the slide groove 6. The sliders 702 drive the limit position. Arm 703 and clamping plate 704 retract synchronously, clamping and fixing the bar stock through the anti-slip pad 705 of clamping plate 704, improving processing stability. After processing, motor 503 drives drive gear 504 to rotate rod 502 in the opposite direction, threaded sleeve 507 moves upward along rod 502, sleeve 508 and ejector plate 509 rise accordingly, ejector plate 509 ejects bar stock at this time, connecting rod 707 pushes connecting seat 706, causing slider 702 to slide outward along guide rod 701, limiting arm 703 and clamping plate 704 open synchronously, releasing clamping of bar stock.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Bar ejector machine fixture, including: The base plate (1) is characterized in that: a placement platform (2) is installed on the upper end of the base plate (1), a placement rack (3) is fixedly connected above the placement platform (2), a cavity (4) is provided inside the placement platform (2), an ejection component (5) is provided on the inner wall of the cavity (4), a sliding groove (6) is provided on the upper end of the placement platform (2), and the number of sliding grooves (6) is three in a circular array, and a limiting component (7) is provided on the upper end of the placement platform (2). The ejection assembly (5) includes a fixed frame (501) and a rotating rod (502). The fixed frame (501) is fixedly connected to the inner wall of the cavity (4). A motor (503) is fixedly connected to the inner wall of the fixed frame (501). The output end of the motor (503) passes through the fixed frame (501) and is fixedly connected to a drive gear (504). The rotating rod (502) is rotatably connected to the inner wall of the cavity (4). The outer wall of the rotating rod (502) is fixed. A driven gear (505) is connected to the rotating rod (502). A threaded groove (506) is provided on the outer wall of the upper end of the rotating rod (502). A threaded sleeve (507) is fitted on the outer wall of the rotating rod (502), and the inner wall of the threaded sleeve (507) is threadedly connected to the threaded groove (506). A sleeve (508) is fixedly connected to the upper end of the threaded sleeve (507) and fitted on the outer wall of the rotating rod (502). An ejector plate (509) is fixedly connected to the top end of the sleeve (508).

2. The bar ejector fixture according to claim 1, characterized in that: The limiting component (7) includes a guide rod (701) and a slider (702). The guide rod (701) is fixedly connected to the inner wall of the slide groove (6), and there are three guide rods (701) and three sliders (702). The upper end of the slider (702) is fixedly connected to a limiting arm (703). A clamping plate (704) is fixedly connected to one side of the limiting arm (703). An anti-slip pad (705) is clamped on the clamping surface of the clamping plate (704). The lower end of the slider (702) is fixedly connected to a connecting seat (706). The inner wall of the connecting seat (706) is rotatably connected to a connecting rod (707) via a rotating shaft.

3. The bar ejector fixture according to claim 2, characterized in that: The slider (702) is adapted to and slidably connected to the inner wall of the groove (6), and the guide rod (701) passes through the slider (702) and is slidably connected to it.

4. The bar ejector fixture according to claim 2, characterized in that: The outer wall of the threaded sleeve (507) is fixedly connected to the connecting seat two (5071), and the end of the connecting rod (707) away from the connecting seat one (706) is rotatably connected to the inner wall of the connecting seat two (5071) through a rotating shaft.

5. The bar ejector fixture according to claim 1, characterized in that: The upper end of the placement platform (2) is provided with a through hole (201), and the sleeve (508) passes through the through hole (201) and is slidably connected to it.

6. The bar ejector fixture according to claim 2, characterized in that: One end of the limiting arm (703) passes through the placement frame (3) and is slidably connected thereto. The upper end of the placement frame (3) is provided with a placement hole (301).

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