Positioning clamp for quickly positioning mechanical structural part

Abstract

The utility model relates to the technical field of positioning fixtures, and discloses a positioning fixture for quickly positioning a mechanical structural member, which comprises a mounting plate, a moving groove is arranged on the inner side of the mounting plate, a sliding plate is slidably mounted in the moving groove, a moving self-locking mechanism is arranged at the bottom of the sliding plate, and a positioning clamping mechanism is arranged at the top of the sliding plate. Structural parts placed on the inner side of the positioning opening are extruded from four directions at the same time, it is ensured that the structural parts are automatically located at the center position of the positioning opening, the problem of machining errors caused by inaccurate positioning and unstable clamping of a traditional clamp is effectively solved, the lower rotating disc can be easily rotated to adjust the positions of the clamping blocks for clamping operation, and the machining efficiency is improved. And the positioning and clamping time can be remarkably saved, the extrusion rod can be extruded, an extrusion plate extrudes a spring A, a limiting part is separated from extrusion on the inner side of a moving groove, accordingly, a sliding plate is freely moved to a proper machining position, and the adaptability of the clamp in a complex machining scene is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of positioning fixture technology, specifically a positioning fixture for quickly positioning mechanical structural components. Background Technology

[0002] A fixture is a tool used to securely mount (position) and clamp (tighten) structural components before machining them on a machine tool, ensuring that the surface of the component meets the technical requirements specified in the drawings, such as dimensions, geometry, and positional accuracy relative to other surfaces.

[0003] According to CN219465497U, a quick-positioning fixture is disclosed on the patent website. This device uses a bidirectional threaded screw to rotate a first and second slide, which in turn drives the fixture to clamp the structural component. After clamping the structural component, the bidirectional threaded screw is stopped to fix the structural component, thereby preventing displacement during the processing of the structural component. The bidirectional threaded screw fixation reduces the manpower required. The fixture can be replaced by pulling it out of the slot.

[0004] While the above solutions can clamp and fix structural components, they struggle to center them. Although the structure is simple, the effect is limited and fails to meet workers' positioning and clamping needs, especially considering the need to adjust the clamping position. Therefore, a positioning fixture for quickly positioning mechanical structural components is needed to solve these problems. Utility Model Content

[0005] The purpose of this invention is to provide a positioning fixture for quickly positioning mechanical structural components, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for quickly positioning mechanical structural components, comprising a mounting plate, a movable groove being provided on the inner side of the mounting plate, a sliding plate being slidably installed inside the movable groove, a movable self-locking mechanism being provided at the bottom of the sliding plate, and a positioning clamping mechanism being provided at the top of the sliding plate.

[0007] The positioning and clamping mechanism includes a clamping and positioning component and a pressing and rotating component. The clamping and positioning component is disposed on the top of the sliding plate, and the pressing and rotating component is disposed outside the clamping and positioning component.

[0008] Preferably, the movable self-locking mechanism includes a slide groove, which is formed at the bottom of the sliding plate. A limit block is slidably installed on the inner side of the slide groove. A pressing rod is slidably installed on the inner side of the sliding plate. A pressing plate is fixedly installed at one end of the pressing rod extending to the inner side of the sliding plate. A spring A is fixedly installed between the pressing plate and the sliding plate.

[0009] Preferably, the number of limiting blocks is a movable self-locking mechanism group, and they are symmetrically distributed on both sides of the spring A.

[0010] Preferably, the clamping and positioning assembly includes a protective plate, which is fixedly installed on the top of the sliding plate. An upper turntable is rotatably installed on the inner side of the protective plate. A limit groove is formed on the inner side of the upper turntable. A clamping block is slidably installed on the inner side of the limit groove. A lower turntable is rotatably installed inside the protective plate near the upper turntable. A lower turntable is formed on the top of the lower turntable. A positioning opening is formed on the top of the protective plate and extends to the bottom of the protective plate.

[0011] Preferably, the pressing and rotating assembly includes a locking block, which is fixedly installed on the outside of the upper turntable. A fixing plate is fixedly installed on the outside of the lower turntable. A locking plate is slidably installed on the inside of the fixing plate. A pressing handle is fixedly installed on the outside of the locking plate. A spring B is fixedly installed between the locking plate and the inside of the fixing plate.

[0012] Preferably, the number of clamping blocks is four sets, and the bottom of the clamping blocks is slidably connected to the arc-shaped groove.

[0013] Preferably, the number of the card blocks is multiple sets, and the card blocks are engaged with the fixing plate.

[0014] Compared with the prior art, this utility model provides a positioning fixture for quickly positioning mechanical structural parts, which has the following advantages:

[0015] 1. This quick-positioning mechanical structural component positioning fixture, through a positioning and clamping mechanism, simultaneously presses the structural component placed inside the positioning opening from four directions, ensuring that it automatically positions itself in the center of the positioning opening. This effectively avoids the processing errors caused by inaccurate positioning and unstable clamping of traditional fixtures. By pressing the pressing handle to release the engagement between the clamping plate and the clamping block, the lower turntable can be easily rotated to adjust the position of the clamping block for clamping operations. This significantly saves positioning and clamping time and improves work efficiency, making it particularly suitable for situations where structural components are frequently clamped during batch processing.

[0016] 2. This positioning fixture for a quick-positioning mechanical structural component, through a movable self-locking mechanism, allows the pressing plate to compress spring A by pressing the pressing rod, thus releasing the limit switch from the inner side of the moving groove and allowing the sliding plate to move freely to the appropriate processing position. This flexible positional design meets the diverse needs of different processing steps for the structural component's position and enhances the fixture's adaptability in complex processing scenarios. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the movable self-locking mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the clamping and positioning component of this utility model;

[0021] Figure 4 This is a schematic diagram of the press-and-rotate assembly of this utility model;

[0022] Figure 5 This is a partial structural diagram of the present utility model.

[0023] In the diagram: 1. Mounting plate; 2. Moving groove; 3. Sliding plate; 4. Moving self-locking mechanism; 41. Slide groove; 42. Limiting block; 43. Pressing rod; 44. Pressing plate; 45. Spring A; 5. Positioning and clamping mechanism; 51. Clamping and positioning assembly; 511. Protective plate; 512. Upper turntable; 513. Lower turntable; 514. Arc groove; 515. Clamping block; 516. Limiting groove; 517. Positioning port; 52. Pressing and rotating assembly; 521. Locking block; 522. Fixing plate; 523. Locking plate; 524. Pressing handle; 525. Spring B. Detailed Implementation

[0024] 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.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Example 1:

[0027] Please see Figure 1-2 This utility model provides a technical solution: a positioning fixture for quickly positioning mechanical structural parts, including a mounting plate 1, a moving groove 2 is provided on the inner side of the mounting plate 1, a sliding plate 3 is slidably installed inside the moving groove 2, a moving self-locking mechanism 4 is provided at the bottom of the sliding plate 3, and a positioning clamping mechanism 5 is provided at the top of the sliding plate 3.

[0028] The positioning and clamping mechanism 5 includes a clamping and positioning component 51 and a pressing and rotating component 52. The clamping and positioning component 51 is disposed on the top of the sliding plate 3, and the pressing and rotating component 52 is disposed outside the clamping and positioning component 51.

[0029] Furthermore, the movable self-locking mechanism 4 includes a slide groove 41, which is opened at the bottom of the sliding plate 3. A limit block 42 is slidably installed on the inner side of the slide groove 41. A pressing rod 43 is slidably installed on the inner side of the sliding plate 3. A pressing plate 44 is fixedly installed at one end of the pressing rod 43 extending to the inner side of the sliding plate 3. A spring A45 is fixedly installed between the pressing plate 44 and the sliding plate 3, which facilitates free control of the position of the device and facilitates subsequent processing.

[0030] Furthermore, the number of limit blocks 42 is 4 sets of movable self-locking mechanisms, and they are symmetrically distributed on both sides of the spring A45, which facilitates the limitation and fixation.

[0031] Example 2:

[0032] Please see Figure 3-5 Furthermore, in conjunction with Embodiment 1, the clamping and positioning assembly 51 includes a protective plate 511, which is fixedly installed on the top of the sliding plate 3. An upper turntable 512 is rotatably installed on the inner side of the protective plate 511. A limiting groove 516 is opened on the inner side of the upper turntable 512. A clamping block 515 is slidably installed on the inner side of the limiting groove 516. A lower turntable 513 is rotatably installed inside the protective plate 511 near the upper turntable 512. A lower turntable 513 is opened on the top of the lower turntable 513. A positioning port 517 is opened on the top of the protective plate 511 and extends to the bottom of the protective plate 511 to facilitate synchronous squeezing and positioning.

[0033] Furthermore, the pressing and rotating assembly 52 includes a locking block 521, which is fixedly installed on the outside of the upper turntable 512. A fixing plate 522 is fixedly installed on the outside of the lower turntable 513. A locking plate 523 is slidably installed on the inside of the fixing plate 522. A pressing handle 524 is fixedly installed on the outside of the locking plate 523. A spring B525 is fixedly installed between the locking plate 523 and the inside of the fixing plate 522 to facilitate rotation and fix the clamping block 515, thereby limiting the rotation.

[0034] Furthermore, there are four sets of clamping blocks 515, and the bottom of the clamping block 515 is slidably connected to the arc-shaped groove 514 to facilitate synchronous clamping and positioning.

[0035] Furthermore, there are multiple sets of locking blocks 521, and the locking blocks 521 are engaged with the fixing plate 522 for easy adjustment and fixation.

[0036] In actual operation, when this device is used, firstly, the structural component to be fixed is placed inside the positioning port 517. Then, the pressing handle 524 is pressed, causing the pressing handle 524 to drive the clamping plate 523 to press downward inside the fixing plate 522. This causes the spring B525 to deform under force, disengaging the top of the clamping plate 523 from the clamping block 521. Then, the lower turntable 513 is rotated. As the lower turntable 513 rotates, it causes the clamping block 515 to move along the arc groove 514. When the clamping block 515 slides, it is restricted by the limiting groove 516 inside the upper turntable 512, causing the clamping block 515 to slide along the limiting groove 516 towards the positioning port 517. When all four sets of clamping blocks 515 are simultaneously subjected to force and move synchronously towards the positioning port 517, the structural component inside the positioning port 517 is clamped and squeezed from four directions, thus simultaneously fixing it. This also ensures that the structural component is centered in the positioning port 517, completing the positioning and clamping. After clamping and fixing, the pressing handle 524 is released, allowing the elastic force of the spring B525 to re-engage the clamping plate 523 and the clamping block 521 to complete the fixing, preventing accidental contact from affecting the clamping effect. When the structural component is fixed, the processing inevitably requires position adjustment. At this time, by pressing the pressing rod 43, the pressing plate 44 on the outside of the pressing rod 43 moves and presses the spring A45, causing the spring A45 to deform under force, allowing the pressing plate 44 to disengage from the limiting blocks 42 on both sides of the pressing, so that the limiting blocks 42 are not inside the pressing moving groove 2. At this time, the sliding plate 3 can be moved to adjust to a suitable processing position. Then, the pressing rod 43 is released, and the elastic force of the spring A45 is used to reset it, causing the limiting blocks 42 to press the inner side of the limiting moving groove 2 again, thus fixing the position of the adjusted sliding plate 3 for better processing.

[0037] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A positioning fixture for quickly positioning mechanical structural components, comprising a mounting plate (1), characterized in that: The mounting plate (1) has a movable groove (2) on its inner side. A sliding plate (3) is slidably installed inside the movable groove (2). A movable self-locking mechanism (4) is provided at the bottom of the sliding plate (3). A positioning clamping mechanism (5) is provided at the top of the sliding plate (3). The positioning and clamping mechanism (5) includes a clamping and positioning component (51) and a pressing and rotating component (52). The clamping and positioning component (51) is disposed on the top of the sliding plate (3), and the pressing and rotating component (52) is disposed outside the clamping and positioning component (51).

2. The positioning fixture for quickly positioning mechanical structural components according to claim 1, characterized in that: The movable self-locking mechanism (4) includes a slide groove (41), which is opened at the bottom of the sliding plate (3). A limit block (42) is slidably installed on the inner side of the slide groove (41). A pressing rod (43) is slidably installed on the inner side of the sliding plate (3). A pressing plate (44) is fixedly installed at one end of the pressing rod (43) extending to the inner side of the sliding plate (3). A spring A (45) is fixedly installed between the pressing plate (44) and the sliding plate (3).

3. The positioning fixture for quickly positioning mechanical structural components according to claim 2, characterized in that: The number of the limiting blocks (42) is the number of movable self-locking mechanisms (4), and they are symmetrically distributed on both sides of the spring A (45) as the axis.

4. The positioning fixture for quickly positioning mechanical structural components according to claim 1, characterized in that: The clamping and positioning assembly (51) includes a protective plate (511), which is fixedly installed on the top of the sliding plate (3). An upper turntable (512) is rotatably installed on the inner side of the protective plate (511). A limiting groove (516) is opened on the inner side of the upper turntable (512). A clamping block (515) is slidably installed on the inner side of the limiting groove (516). A lower turntable (513) is rotatably installed on the side of the protective plate (511) near the upper turntable (512). The lower turntable (513) is opened on the top of the lower turntable (513). A positioning port (517) is opened on the top of the protective plate (511) and extends to the bottom of the protective plate (511).

5. A positioning fixture for quickly positioning mechanical structural components according to claim 4, characterized in that: The pressing and rotating assembly (52) includes a locking block (521), which is fixedly installed on the outside of the upper turntable (512). A fixing plate (522) is fixedly installed on the outside of the lower turntable (513). A locking plate (523) is slidably installed on the inside of the fixing plate (522). A pressing handle (524) is fixedly installed on the outside of the locking plate (523). A spring B (525) is fixedly installed between the locking plate (523) and the inside of the fixing plate (522).

6. A positioning fixture for quickly positioning mechanical structural components according to claim 5, characterized in that: The number of clamping blocks (515) is four sets, and the bottom of the clamping blocks (515) is slidably connected to the arc groove (514).

7. A positioning fixture for quickly positioning mechanical structural components according to claim 5, characterized in that: The number of the card blocks (521) is multiple sets, and the card blocks (521) are engaged with the fixing plate (522).

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