A small workpiece rapid positioning device

Abstract

The utility model provides a kind of small workpiece quick positioning device.The left end of clamping screw rod and baffle can clamp and fix workpiece, and the gap size between clamping screw rod and baffle can be adjusted by rotating, so as to change the distance, and therefore the size of clamped workpiece and pre-tightening force are quickly adjusted by the number of rotating turns of clamping screw rod.The left and right sliding of clamping sliding block can change the distance between clamping sliding block and baffle, and since clamping screw rod is threadedly connected with clamping sliding block, clamping sliding block drives clamping screw rod to move synchronously without rotating clamping screw rod.The operation lever can quickly control the left and right sliding of clamping sliding block through multi-link mechanism, so as to control clamping device to clamp workpiece quickly, thereby improving clamping efficiency.

Description

Technical Field

[0001] This utility model relates to the field of workpiece clamping equipment technology, and in particular to a small workpiece rapid positioning device. Background Technology

[0002] In machining, assembly, and inspection processes, rapid clamping of small workpieces is a key aspect of improving production efficiency. Traditional small workpiece clamping devices typically adjust the clamping distance by manually tightening a screw. Operators need to repeatedly rotate the screw to accommodate workpieces of different sizes, which is not only time-consuming and labor-intensive but also makes it difficult to accurately control the preload, affecting clamping efficiency and stability. Furthermore, existing clamping devices usually require completely releasing the clamping components when changing workpieces, resulting in cumbersome operation procedures and an inability to achieve rapid opening and closing adjustments, failing to meet the demands of modern high-efficiency production.

[0003] To address the aforementioned issues, some improved clamping devices have emerged on the market, such as those employing a slider and screw structure to adjust the clamping range through sliding. However, these devices often still rely on the rotation of the screw for clamping, resulting in slow adjustment speeds and requiring multiple adjustments when clamping workpieces of different sizes, thus lacking operational convenience. Therefore, there is an urgent need for a small workpiece clamping device that can quickly open and close, flexibly adjust the clamping distance, and achieve efficient clamping through simple operation, in order to improve processing efficiency and reduce operational intensity.

[0004] This utility model discloses a small workpiece rapid positioning device. By optimizing the linkage structure of the clamping slider, clamping screw and locking assembly, it realizes rapid adjustment of clamping distance and instantaneous locking of workpiece, effectively solving the technical problems of cumbersome operation and low efficiency of traditional clamping devices. Utility Model Content

[0005] In view of the above problems, this utility model is proposed to provide a small workpiece quick positioning device that overcomes or at least partially solves the above problems, which can solve the problem of low clamping efficiency of existing clamping devices for small workpieces and achieve the effect of improving the clamping efficiency of small workpieces.

[0006] Specifically, this utility model provides a rapid positioning device for small workpieces, which includes:

[0007] Mounting bracket, wherein a baffle is provided at the left end of the mounting bracket;

[0008] A clamping slider is provided, wherein the clamping slide is slidably disposed on the mounting bracket in the left-right direction; the clamping slider is provided with a threaded hole that passes through in the left-right direction;

[0009] A clamping screw is rotatably mounted in the threaded hole, with both ends of the clamping slider extending out.

[0010] A clamping and locking assembly includes an operating lever and a multi-link mechanism; one end of the operating lever is hinged to the left end shaft of the clamping slider and connected to the mounting frame through the multi-link mechanism, so that when the clamping slider slides to a preset position, the operating lever is located at the dead point formed by the multi-link mechanism.

[0011] Optionally, the mounting bracket is provided with a clamping slide extending in the left-right direction; the clamping slider is slidably inserted into the clamping slide; the multi-link mechanism is disposed on the clamping slide and connected to the operating lever.

[0012] Optionally, the multi-link mechanism includes a first rotating shaft, a second rotating shaft, and a transmission link; the operating lever is rotatably connected to the clamping slider via a third rotating shaft;

[0013] The first rotating shaft is located at the right end of the clamping slide; the second rotating shaft is fixed to the operating rod; the two ends of the transmission connecting rod are rotatably connected to the first rotating shaft and the second rotating shaft respectively, so that when the clamping slider is located at the preset position, the operating rod makes the first rotating shaft, the second rotating shaft and the third rotating shaft be located on the same horizontal plane.

[0014] Optionally, the left end of the clamping screw is provided with a pressure plate; the pressure plate is parallel to the baffle.

[0015] Optionally, an operating disc is fixedly sleeved on the right end of the clamping screw, and the operating disc is used to control the rotation of the clamping screw.

[0016] Optionally, the clamping slide is detachably provided by screws.

[0017] This utility model discloses a rapid positioning device for small workpieces. It includes a mounting frame, a clamping slider, a clamping screw, and a clamping locking assembly, with the clamping locking assembly comprising an operating rod and a multi-link mechanism. The left end of the clamping screw and the baffle can clamp and fix the workpiece. The clamping screw can adjust the gap between itself and the baffle by rotation, thus changing the spacing. Therefore, the size of the clamped workpiece and the preload can be quickly adjusted by rotating the clamping screw. Furthermore, the clamping slider, which slides left and right, can change the distance between itself and the baffle. Since the clamping screw and the clamping slider are threadedly connected, the clamping slider drives the clamping screw to move synchronously when the clamping screw is not rotating. That is, when the clamping slider slides to the rightmost end, the clamping device is in an open state, at which point the distance between the left end of the clamping screw and the baffle is at its maximum. Conversely, when the clamping slider slides to the leftmost end, the clamping device is in a closed state, i.e., the workpiece is in a pre-tightening state, at which point the distance between the left end of the clamping screw and the baffle is at its minimum. The operating lever can quickly control the left and right sliding of the clamping slider through a multi-link mechanism, thereby controlling the clamping device to quickly clamp the workpiece and improving the clamping and fixing efficiency.

[0018] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0019] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0020] Figure 1 This is a schematic structural diagram of a small workpiece rapid positioning device according to an embodiment of the present invention;

[0021] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle.

[0022] In the diagram: 100, mounting bracket; 110, baffle; 120, clamping slide; 200, clamping slider; 300, clamping screw; 310, pressure plate; 320, control panel; 410, control lever; 420, first rotating shaft; 430, second rotating shaft; 440, transmission connecting rod; 450, third rotating shaft. Detailed Implementation

[0023] The following reference Figures 1 to 2This invention describes a small workpiece rapid positioning device according to an embodiment of the present invention. In this description, it should be understood that 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 indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0024] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0027] Figure 1 This is a schematic structural diagram of a rapid positioning device for small workpieces, such as... Figure 1 As shown, and refer to Figure 2 This utility model provides a rapid positioning device for small workpieces, which includes a mounting frame 100, a clamping slider 200, a clamping screw 300, and a clamping locking assembly. A baffle 110 is provided at the left end of the mounting frame 100, and a clamping slide 120 is slidably mounted on the mounting frame 100 in the left-right direction. The clamping slider 200 has a threaded hole that extends through in the left-right direction. The clamping screw 300 is rotatably mounted in the threaded hole, with both its left and right ends extending out of the clamping slider 200.

[0028] The clamping and locking assembly includes an operating lever 410 and a multi-link mechanism; one end of the operating lever 410 is hinged to the left end shaft of the clamping slider 200 and connected to the mounting frame 100 through the multi-link mechanism, so that when the clamping slider 200 slides to a preset position, the operating lever 410 is located at the dead point formed by the multi-link mechanism.

[0029] Specifically, the left end of the clamping screw 300 and the baffle 110 can clamp and fix the workpiece. The clamping screw 300 can adjust the gap between itself and the baffle 110 by rotating, thereby changing the spacing. Therefore, the size of the clamped workpiece and the preload can be quickly adjusted by rotating the clamping screw 300. Furthermore, the clamping slider 200 is slidably positioned to change the distance between itself and the baffle 110. Since the clamping screw 300 and the clamping slider 200 are threadedly connected, the clamping slider 200 drives the clamping screw 300 to move synchronously when the clamping screw 300 is not rotating. That is, when the clamping slider 200 slides to the rightmost end, the clamping device is in the open state, at which time the distance between the left end of the clamping screw 300 and the baffle 110 is at its maximum. Conversely, when the clamping slider 200 slides to the leftmost end, the clamping device is in a closed state, which is the state where the workpiece is to be tightened. At this time, the distance between the left end of the clamping screw 300 and the baffle 110 is the smallest.

[0030] Furthermore, the operating lever 410 can be quickly controlled to slide the clamping slider left and right via a multi-link mechanism, thereby controlling the clamping device to quickly clamp the workpiece and improving clamping efficiency. Furthermore, the polygonal linkage mechanism formed by the operating lever 410 and the multi-link mechanism has a mechanical dead point position. When the operating lever 410 is at the dead point position, the clamping slider 200 is at the leftmost end, and the clamping device is in a closed state. Therefore, when the clamping screw 300 is tightening the workpiece, the clamping slider 200 is in a fixed state, requiring no additional locking mechanism, thus achieving rapid clamping operations. Simultaneously, when it is necessary to release the closed state, simply pulling the operating lever 410 will release the dead point state.

[0031] In the initial state during operation, the clamping slider 200 is located at the rightmost end, and the workpiece to be clamped is placed between the baffle 110 and the clamping screw 300. Pulling the operating lever 410 causes the clamping slider 200 to move to the left via a multi-link mechanism. When the clamping slider 200 slides to the leftmost end (i.e., the preset position), the operating lever 410 and the multi-link mechanism are at their dead center position, and the clamping slider 200 is locked. Rotating the clamping screw 300 moves it to the left, thereby securing the workpiece and completing the workpiece clamping operation. When it is necessary to remove the locking state of the clamping slider 200, simply pull the operating lever 410 upwards to engage the dead center state.

[0032] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the mounting bracket 100 is provided with a clamping slide 120 extending in the left-right direction. The clamping slider 200 is slidably inserted into the clamping slide 120, and a multi-link mechanism is provided on the clamping slide 120 and connected to the operating lever 410.

[0033] Specifically, the clamping slide 120 can constrain the clamping slider 200, thereby ensuring that the sliding direction of the clamping slider 200 is always left and right.

[0034] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the multi-link mechanism includes a first rotating shaft 420, a second rotating shaft 430, and a transmission link 440. The operating lever 410 is rotatably connected to the clamping slider 200 via a third rotating shaft 450. The first rotating shaft 420 is located at the right end of the clamping slide 120, and the second rotating shaft 430 is fixed to the operating lever 410. Both ends of the transmission link 440 are rotatably connected to the first rotating shaft 420 and the second rotating shaft 430, respectively, so that when the clamping slider 200 is in a preset position, the operating lever 410 causes the first rotating shaft 420, the second rotating shaft 430, and the third rotating shaft 450 to be on the same horizontal plane.

[0035] Specifically, when the first rotating shaft 420, the second rotating shaft 430, and the third rotating shaft 450 are at the same level, the clamping slider 200 is at the preset position. When the clamping slider 200 is subjected to pressure to the right, since the first rotating shaft 420, the second rotating shaft 430, and the third rotating shaft 450 are at the same level, the forces on the transmission link 440 cancel each other out. In other words, the setting of the first rotating shaft 420, the second rotating shaft 430, and the third rotating shaft 450 at the same level allows the quadrilateral linkage mechanism consisting of the transmission link 440, the clamping slider 200, the parent slide rail, and the operating lever 410 to be at the dead point position.

[0036] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, a pressure plate 310 is provided at the left end of the clamping screw 300, and the pressure plate 310 is parallel to the baffle 110. Specifically, the pressure plate 310 and the baffle 110 can clamp the workpiece. In this embodiment, the pressure plate 310 is disc-shaped, and the pressure plate 310 is provided with a notch.

[0037] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, an operating disc 320 is fixedly sleeved on the right end of the clamping screw 300, and the operating disc 320 is used to control the rotation of the clamping screw 300.

[0038] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the clamping slide 120 is detachably mounted by screws. Specifically, the detachable mounting slide 120 facilitates device maintenance and replacement.

[0039] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A rapid positioning device for small workpieces, characterized in that, include: Mounting bracket, wherein a baffle is provided at the left end of the mounting bracket; A clamping slider is provided, wherein the clamping slide is slidably disposed on the mounting bracket in the left-right direction; the clamping slider is provided with a threaded hole that passes through in the left-right direction; A clamping screw is rotatably mounted in the threaded hole, with both ends of the clamping slider extending out. A clamping and locking assembly includes an operating lever and a multi-link mechanism; one end of the operating lever is hinged to the left end shaft of the clamping slider and connected to the mounting frame through the multi-link mechanism, so that when the clamping slider slides to a preset position, the operating lever is located at the dead point formed by the multi-link mechanism.

2. The rapid positioning device for small workpieces according to claim 1, characterized in that, The mounting bracket is provided with a clamping slide extending in the left-right direction; the clamping slider is slidably inserted into the clamping slide; the multi-link mechanism is provided on the clamping slide and connected to the operating lever.

3. The rapid positioning device for small workpieces according to claim 2, characterized in that, The multi-link mechanism includes a first rotating shaft, a second rotating shaft, and a transmission link; the operating lever is rotatably connected to the clamping slider via a third rotating shaft; The first rotating shaft is located at the right end of the clamping slide; the second rotating shaft is fixed to the operating rod; the two ends of the transmission connecting rod are rotatably connected to the first rotating shaft and the second rotating shaft respectively, so that when the clamping slider is located at the preset position, the operating rod makes the first rotating shaft, the second rotating shaft and the third rotating shaft be located on the same horizontal plane.

4. The rapid positioning device for small workpieces according to claim 1, characterized in that, The left end of the clamping screw is provided with a pressure plate; the pressure plate is parallel to the baffle.

5. The rapid positioning device for small workpieces according to claim 1, characterized in that, An operating disc is fixedly sleeved on the right end of the clamping screw, and the operating disc is used to control the rotation of the clamping screw.

6. The rapid positioning device for small workpieces according to claim 1, characterized in that, The clamping slide is detachably provided by screws.

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