Positioning tool for plastic product processing

Abstract

The utility model relates to the technical field of plastic product machining, and discloses a positioning tool for plastic product machining, which comprises a base, a linear guide rail assembly, a clamping assembly and a fine adjustment assembly, the linear guide rail assembly comprises a plurality of guide rails arranged on the base, and a plurality of sliding blocks are slidably arranged on the guide rails; a plurality of positioning assemblies are arranged on the sliding block, the clamping assembly comprises a supporting rod and a pulling rod which are arranged on the base, a positioning rod is hinged to the middle of the supporting rod, a connecting rod is hinged to the top of the supporting rod, and the two ends of the pulling rod are hinged to the middle of the positioning rod and the middle of the connecting rod respectively; through cooperation of the linear guide rail assembly, the clamping assembly, the fine adjustment assembly and the positioning assembly, rapid positioning and fixing of a workpiece are achieved, the positioning rod is lifted upwards to drive the connecting rod to move downwards, the pressing plate vertically presses the workpiece, meanwhile, the position of the sliding block is locked, the positioning rod is pulled downwards to unlock, the position of the clamp is convenient to adjust, and the effects of being easy and convenient to operate and wide in application range are achieved.

Description

Technical Field

[0001] This application relates to the technical field of plastic product processing, and particularly relates to a positioning tooling for plastic product processing. Background Art

[0002] In the plastic product processing industry, positioning tooling is one of the key devices to ensure the processing accuracy and efficiency of products. At present, the commonly used positioning tooling for plastic product processing in the market mostly adopts fixed fixtures or simple sliding clamping devices. Although these existing technical solutions meet the basic positioning requirements to a certain extent, when facing plastic products of different shapes and sizes, the existing positioning tooling often needs to replace different fixtures or perform complex adjustments, resulting in insufficient flexibility.

[0003] The above information disclosed in this background art is only used to increase the understanding of the background art of this application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Utility Model Content

[0004] In order to solve the problem that the existing positioning tooling often needs to replace different fixtures or perform complex adjustments when facing plastic products of different shapes and sizes, resulting in insufficient flexibility, this application provides a positioning tooling for plastic product processing.

[0005] The positioning tooling for plastic product processing provided by this application adopts the following technical solutions:

[0006] A positioning tooling for plastic product processing includes a base, a linear guide rail assembly, a clamping assembly, and a fine-tuning assembly;

[0007] The base is used for the support and installation of the overall mechanism;

[0008] The linear guide rail assembly includes a plurality of guide rails arranged on the base, a plurality of sliders slidably arranged on the guide rails, and a plurality of positioning components arranged on the sliders for locking the positions of the sliders;

[0009] The clamping assembly includes a support rod and a pull rod arranged on the base, a positioning rod hinged in the middle of the support rod, a connecting rod hinged at the top of the support rod, and both ends of the pull rod are respectively hinged to the middle parts of the positioning rod and the connecting rod;

[0010] The fine-tuning assembly includes a pressing plate arranged on the connecting rod, and the pressing plate can move up and down along the Z-axis.

[0011] Preferably, the positioning component includes a T-shaped rod arranged on the slider, the lower end of the telescopic T-shaped rod slides through the slider and is connected with a toothed block, and an elastic member is arranged between the T-shaped rod and the slider for driving the T-shaped rod to reset.

[0012] Preferably, a rack adapted to the tooth block is provided on the guide rail, and a plurality of chip removal slots are provided on the guide rail.

[0013] Preferably, the positioning rod includes a cam hinged to the support rod, an articulated plate is provided at the upper end of the cam, the articulated plate is hinged to the pull rod, and a handle is provided at the top of the articulated plate.

[0014] Preferably, the pull rod includes a plurality of linkage plates, both ends of the linkage plate are respectively hinged to the articulated plate and the connecting rod, and the same limiting plate is connected to one side of the plurality of linkage plates close to the fine adjustment assembly.

[0015] In summary, the present application includes the following beneficial technical effects:

[0016] By the combined use of the linear guide rail assembly, the clamping assembly, the fine adjustment assembly and the positioning assembly, lifting the positioning rod drives the connecting rod to move downward, so that the pressing plate presses vertically on the plastic part, making the pull rod and the positioning rod collinear and perpendicular to the connecting rod. At the same time, the cam presses down the T-shaped rod so that the tooth block meshes with the rack to lock the position of the slider. At this time, the support rod, the positioning rod and the connecting rod form a stable triangular support to keep the locking of the workpiece and the slider stable. Pulling down the positioning rod makes the connecting rod and the cam rotate, releasing the extrusion of the threaded rod on the workpiece and the locking of the tooth block on the slider, and the position of the threaded rod can be freely changed to adapt to plastic products of different specifications and shapes; compared with the prior art, it has the effects of convenient operation and wide application range. Description of the Drawings

[0017] Figure 1 is the first perspective three-dimensional structure schematic diagram of the application embodiment;

[0018] Figure 2 is the second perspective three-dimensional structure schematic diagram of the application embodiment;

[0019] Figure 3 is the third perspective three-dimensional structure schematic diagram of the application embodiment.

[0020] Description of the reference numerals: 1, base; 2, linear guide rail assembly; 201, guide rail; 202, rack; 203, slider; 3, clamping assembly; 301, support rod; 302, positioning rod; 3021, articulated plate; 3022, handle; 3023, cam; 303, connecting rod; 304, pull rod; 3041, linkage plate; 3042, limiting plate; 4, fine adjustment assembly; 401, pressing plate; 402, threaded rod; 403, locking bolt; 5, positioning assembly; 501, T-shaped rod; 502, spring; 503, tooth block; 6, chip removal slot. Detailed Description of the Invention

[0021] The following is combined with the attached Figures 1-3Further details of this application are provided below.

[0022] An embodiment of this application discloses a positioning tooling for plastic product processing. Referring to Figures 1-3 , a positioning tooling for plastic product processing includes a base. The base is composed of two bases 1 with mounting holes. A linear guide rail assembly 2 is installed inside the two bases 1. The linear guide rail assembly 2 includes a guide rail 201 installed inside the two bases 1. Two sliders 203 are slidably installed on the guide rail 201. Clamping assemblies 3 are installed at the upper ends of the two sliders 203. The clamping assembly 3 includes a support rod 301 and a pull rod 304 installed on the base 1. A positioning rod 302 is hinged in the middle of the support rod 301. A connecting rod 303 is hinged at the top of the support rod 301. The two ends of the pull rod 304 are respectively hinged to the middle of the positioning rod 302 and the connecting rod 303. A fine-tuning assembly 4 is installed at one end of the connecting rod 303 away from the support rod 301. The fine-tuning assembly 4 includes a pressing plate 401 installed on the connecting rod 303, and the pressing plate 401 can move up and down along the Z-axis. A positioning assembly 5 is installed below the positioning rod 302 on the slider 203. By lifting the positioning rod 302 to drive the connecting rod 303 to move downwards, the pressing plate 401 vertically presses on the plastic part, making the pull rod 304 collinear with the positioning rod 302 and perpendicular to the connecting rod 303. At the same time, the cam 3023 presses down the T-shaped rod 501 so that the tooth block 503 meshes with the rack 202 to lock the position of the slider 203. At this time, the support rod 301, the positioning rod 302, and the connecting rod 303 form a stable triangular support to maintain the stability of the threaded rod 402 for the workpiece.

[0023] Referring to Figure 2 , two racks 202 are fixedly installed on the guide rail 201. The two racks 202 are slidably installed inside the slider 203. A plurality of chip removal slots 6 are opened on the guide rail 201. Through the chip removal slots 6, chips can be discharged to prevent the accumulation of machining chips on the guide rail 201, which affects the smooth movement of the slider 203. The upper end of the guide rail 201 is flush with the upper end of the base 1 to prevent the workpiece from shaking due to uneven placement.

[0024] Referring to Figure 3 , the support rod 301 is a V-shaped plate with an obtuse angle. The positioning rod 302 includes a cam 3023 hinged to the support rod 301. An articulated plate 3021 is installed at the upper end of the cam 3023. The articulated plate 3021 is hinged to the pull rod 304. A grip 3022 is installed at the top of the articulated plate 3021. When the pressing plate 401 presses down on the workpiece, the pull rod 304 can be made collinear with the positioning rod 302 and perpendicular to the connecting rod 303, so that the support rod 301, the positioning rod 302, and the connecting rod 303 form a stable triangular support to maintain the stability of the threaded rod 402 pressing down on the workpiece.

[0025] Referring to Figure 3, the pulling rod 304 includes two linkage plates 3041. The two ends of the linkage plate 3041 are respectively hinged to the hinge plate 3021 and the connecting rod 303. The connecting rod 303 is located inside the two linkage plates 3041. A same limiting plate 3042 is connected to one side of the two linkage plates 3041 close to the fine-tuning component 4. Through the limiting plate 3042.

[0026] Referring to Figure 3 , the positioning component 5 includes a T-shaped rod 501 installed on the slider 203. The lower end of the telescopic T-shaped rod 501 slides through the slider 203 and is connected with a tooth block 503. A spring 502 is installed between the T-shaped rod 501 and the slider 203. By the elastic force of the spring 502, when the extrusion of the cam 3023 on the T-shaped rod 501 is released, the spring 502 can drive the T-shaped rod 501 and the tooth block 503 to reset, so that the tooth block 503 is separated from the slider 203;

[0027] Referring to Figure 2 , a threaded rod 402 is installed at the upper end of the pressing plate 401. Two locking bolts 403 are sleeved on the upper thread of the threaded rod 402. The upper and lower sides of the connecting rod 303 are fixed by the clip of the two locking bolts 403. A rubber pad is installed at the bottom of the pressing plate 401.

[0028] The implementation principle of a positioning tooling for plastic product processing in an embodiment of the present application is as follows:

[0029] When the tooling is in an unoperated state, each component is in a natural state and does not exert any force on the workpiece.

[0030] On the guide rail 201 of the linear guide rail assembly 2, the slider 203 can slide freely and is not locked. The support rod 301, the positioning rod 302, the connecting rod 303 and the pulling rod 304 in the clamping assembly 3 are in their initial positions and do not form a stable triangular support. The pressing plate 401 of the fine-tuning component 4 is not pressed down, and the threaded rod 402 is in a free state. The T-shaped rod 501 of the positioning component 5 is separated from the tooth block 503 under the action of the spring 502.

[0031] Place the plastic product to be processed on the base 1 to ensure that the position of the workpiece is roughly correct.

[0032] The operator lifts the handle 3022 of the positioning rod 302. Through the action of the cam 3023, the positioning rod 302 rotates around the hinge point. The rotation of the positioning rod 302 drives one end of the pulling rod 304 to move upward, and then through the transmission of the connecting rod 303, the other end of the pulling rod 304 moves downward. The downward movement of the pulling rod 304 drives the pressing plate 401 of the fine-tuning component 4 to press down along the Z-axis direction until the rubber pad at the bottom of the pressing plate 401 is closely attached to the workpiece, realizing preliminary positioning, and the support rod 301, the positioning rod 302 and the connecting rod 303 form a stable triangular support structure.

[0033] While the pressing plate 401 is being pressed down, the cam 3023 of the positioning rod 302 continues to press down the T-shaped rod 501, causing the T-shaped rod 501 to drive the tooth block 503 to engage with the rack 202.

[0034] The engagement of the tooth block 503 with the rack 202 locks the position of the slider 203 to prevent it from sliding on the guide rail 201.

[0035] The operator further finely adjusts the pressing degree of the pressing plate 401 on the workpiece by rotating the locking bolt 403 on the threaded rod 402 until the ideal machining position is reached.

[0036] The locking bolt 403 fixes the upper and lower sides of the connecting rod 303 through the clip to prevent loosening during the machining process.

[0037] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense, which can be a mechanical connection or an electrical connection, or the communication inside two components, and can be directly connected. "Upper", "lower", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0038] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0039] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

[0040] The above are all the preferred embodiments of this application and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A positioning tool for plastic product processing, characterized in that: It comprises a base, a linear guide assembly (2), a clamping assembly (3) and a fine-tuning assembly (4); The base is used for supporting and installing the whole mechanism; The linear guide rail assembly (2) comprises a plurality of guide rails (201) arranged on the base (1), a plurality of sliders (203) being slidably arranged on the guide rails (201), and a plurality of positioning assemblies (5) being arranged on the sliders (203) for locking the positions of the sliders (203); The clamping assembly (3) comprises a support rod (301) and a pulling rod (304) arranged on the base (1); a positioning rod (302) is hingedly connected to the middle of the support rod (301); a connecting rod (303) is hingedly connected to the top of the support rod (301); and two ends of the pulling rod (304) are respectively hingedly connected to the middle of the positioning rod (302) and the connecting rod (303); The fine-tuning assembly (4) comprises a pressing plate (401) arranged on the connecting rod (303), and the pressing plate (401) can move up and down along the Z axis.

2. A positioning tool for plastic product processing according to claim 1, characterized in that: The positioning assembly (5) comprises a T-shaped rod (501) arranged on the slider (203); the lower end of the telescopic T-shaped rod (501) slides through the slider (203) and is connected to a tooth block (503); an elastic member is arranged between the T-shaped rod (501) and the slider (203) for driving the T-shaped rod (501) to reset.

3. A positioning tool for plastic product processing according to claim 2, characterized in that: The guide rail (201) is provided with a rack (202) matched with the tooth block (503), and the guide rail (201) is provided with a plurality of chip removal slots (6).

4. A positioning tool for plastic product processing according to claim 1, characterized in that: The positioning rod (302) comprises a cam (3023) hingedly arranged on the support rod (301), a hinge plate (3021) is arranged at the upper end of the cam (3023), the hinge plate (3021) is hingedly connected to the pulling rod (304), and a handle (3022) is arranged at the top of the hinge plate (3021).

5. A positioning tool for plastic product processing according to claim 4, characterized in that: The pulling rod (304) comprises a plurality of linkage plates (3041), the two ends of which are respectively hinged to the hinge plate (3021) and the connecting rod (303), and a same limiting plate (3042) is connected to one side of the plurality of linkage plates (3041) close to the fine-tuning assembly (4).

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