Fixing jig for processing plastic products

Abstract

The utility model discloses a fixing jig for processing a plastic product, which comprises a base used for placing the plastic product, and the base is provided with a positioning block used for being matched with a positioning hole of the plastic product to realize positioning and a first supporting block used for being pressed against the back of a processing position. The base is provided with a clamp located on the periphery of the plastic product. The clamp comprises an extension arm. One end of the extension arm is in transmission connection with the handle, and the other end of the extension arm is connected with a pressing block. The positioning block is arranged on the base and can be matched with a positioning hole in a plastic product, accurate positioning is achieved, and it is guaranteed that the position of the plastic product cannot deviate in the machining process. The first supporting block abuts against the back of the machining position to provide stable supporting, the pressing block can press the top end face of a plastic product, the first supporting block is matched with the pressing block, product vibration is reduced in the CNC machining process, and it is ensured that residual plastic on the product can be accurately cut off.

Description

Technical Field

[0001] This utility model relates to the field of clamping fixtures, and in particular to a fixing fixture for processing plastic products. Background Technology

[0002] For plastic products that are directly injection molded, residual plastic will remain at the injection gate after molding. This not only affects the product's appearance but may also adversely affect its functionality. Currently, CNC machining is commonly used to remove residual plastic from plastic products.

[0003] For example, Chinese patent CN217702493U discloses a CNC machining fixture for plastic products, including a base, a support plate, a product positioning plate, a connecting part, a cylinder assembly, and a cover plate, which has a relatively complex structure. The fixture works by: loading the product into the product positioning plate and fixing it with a product positioning block; manually rotating the cover plate along the axis of rotation until it is flush with the product positioning plate; activating the cylinder assembly; and rotating the clamping cylinder to lower the pressure block and press the cover plate firmly against the product positioning plate.

[0004] In view of this, the present invention improves the above-mentioned CNC machining clamping fixture for plastic products and proposes a fixing fixture for machining plastic products, which has a simpler structure and simpler positioning operation. Utility Model Content

[0005] This invention overcomes the shortcomings of the above-mentioned technologies and provides a fixing fixture for processing plastic products, which can stably fix plastic products during CNC machining, and the fixing fixture has a simple structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A fixture for processing plastic products, wherein the bottom of the plastic product for fixing has a receiving groove, and the top of the plastic product has a processing position, the processing position being located on the back of the receiving groove.

[0008] The fixing fixture includes a base for placing the plastic product, the base having a positioning block for engaging with the positioning hole of the plastic product to achieve positioning, and a first support block for pressing against the back of the processing position. The base has a clamp located on the outer periphery of the plastic product, the clamp having an extension arm; one end of the extension arm is drivenly connected to a handle, and the other end of the extension arm is connected to a clamping block, the handle being used to drive the extension arm to rotate up and down, causing the clamping block to move away from or press against the top surface of the plastic product.

[0009] Preferably, the extension arm is provided with a strip-shaped hole, the clamp further comprises a screw rod vertically penetrating through the strip-shaped hole, the screw rod is fixedly connected with a pressing block at the bottom end, and the screw rod is fixed with the extension arm through a nut.

[0010] Preferably, the base is provided with a boss, the clamp comprises a mounting seat fixedly connected to the boss, and the extension arm and the handle are movably connected to the mounting seat.

[0011] Preferably, the fixing jig is uniformly provided with at least two clamps around the outer periphery of the plastic product.

[0012] Preferably, the pressing block is arranged close to the machining position.

[0013] Preferably, the base is provided with a second supporting block for abutting against the plastic product, and the pressing block and the second supporting block are used for clamping the plastic product from top to bottom, respectively.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1. The positioning block can cooperate with the positioning hole on the plastic product to realize accurate positioning and ensure that the position of the plastic product will not deviate in the machining process. The first supporting block abuts against the back of the machining position to provide stable support, and the pressing block can be pressed against the top end surface of the plastic product. The first supporting block cooperates with the pressing block to reduce product vibration in the CNC machining process and ensure that the residual plastic on the product can be accurately cut off.

[0016] 2. The positioning hole of the plastic product cooperates with the positioning block, and at the same time, the first supporting block and the second supporting block abut against the bottom surface of the plastic product. Then, the extension arm is rotated downward by pressing the handle, and the pressing block is pressed against the top end surface of the plastic product, so that the plastic product is fixed, and the operation is simple. The fixing jig of the utility model comprises a base and a clamp, and has fewer components and simple structure.

[0017] 3. The combination of the strip-shaped hole of the extension arm and the screw rod and the nut enables the position of the pressing block to be finely adjusted to adapt to plastic products of different sizes or shapes, thereby increasing the versatility and flexibility of the jig. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 is the working schematic view of the fixing jig for machining the plastic product of the utility model;

[0019] Fig. 2 is the overall schematic view of the fixing jig for machining the plastic product of the utility model;

[0020] Fig. 3 is the bottom schematic view of the plastic product of the utility model;

[0021] The implementation, functional features and advantages of the utility model will be further explained in combination with embodiments and with reference to the drawings. DETAILED DESCRIPTION

[0022] The utility model features and other related features are further explained in detail through embodiments for the understanding of the same industry technical personnel:

[0023] Reference Figs. 1-3 An embodiment of the utility model for processing plastic products is proposed:

[0024] A fixing jig for processing plastic products, the bottom of the plastic product 3 has a containing groove 31, the top of the plastic product 3 has a processing position 32, the processing position 32 is at the back of the containing groove 31, and the processing position 32 refers to the plastic residue left on the plastic product 3 at the glue inlet when directly feeding glue injection molding products.

[0025] As shown in Fig. 2 The fixing jig comprises a base 1 for placing the plastic product 3, the base 1 is provided with a positioning block 11 for cooperating with the positioning hole 33 of the plastic product 3 to realize positioning, and a first supporting block 12 for abutting against the back of the processing position 32.

[0026] The base 1 is provided with a clamp 2 located at the outer periphery of the plastic product 3, and the clamp 2 comprises an extension arm 21; one end of the extension arm 21 is in transmission connection with a handle 22, and the other end of the extension arm 21 is connected with a pressing block 23. The handle 22 is used for driving the extension arm 21 to overturn up and down, and makes the pressing block 23 away from or press against the top end surface of the plastic product 3.

[0027] The extension arm 21 is provided with a strip-shaped hole 211, the clamp 2 further comprises a screw rod 212 vertically penetrating through the strip-shaped hole 211, the screw rod 212 is fixedly connected with the pressing block 23 at the bottom end, and the screw rod 212 is fixed with the extension arm 21 through a nut 213. The combination of the strip-shaped hole 211 of the extension arm 21 and the screw rod 212 and the nut 213 enables the position of the pressing block 23 to be finely adjusted, so as to adapt to plastic products 3 of different sizes or shapes, and increase the versatility and flexibility of the jig. Moreover, the position of the pressing block 23 needs to avoid the cutter for cutting the residual plastic, and at the same time, the pressing block 23 is made as close to the processing position 32 as possible, so as to reduce the product vibration in the cutting process and ensure that the residual plastic on the product can be accurately cut off.

[0028] The base 1 is provided with a boss 13, the clamp 2 comprises a mounting seat 24 fixedly connected to the boss 13, and the extension arm 21 and the handle 22 are movably connected with the mounting seat 24. Specifically, the model of the clamp 2 used in the utility model is 201C203F. The connection mode between the extension arm 21, the handle 22 and the mounting seat 24 can refer to the clamp 2 of 201C203F.

[0029] The fixing jig is uniformly provided with at least two clamps 2 around the periphery of the plastic product 3, so that the plastic product 3 is clamped uniformly around the machining position 32.

[0030] For some thin plastic products 3, if only the pressing block 23 is used to press one side of the plastic product 3, the plastic product 3 will be unevenly stressed, and even damaged. The base 1 is provided with a second supporting block 14 for pressing against the plastic product 3, and the pressing block 23 and the second supporting block 14 are used to clamp the plastic product 3 one above the other, so that the plastic product 3 is not damaged due to uneven stress, and the plastic product 3 can be further fixed to reduce vibration of the plastic product 3 during cutting.

[0031] In the embodiment, the base 1 is integrally formed with the positioning block 11, the first supporting block 12, the second supporting block 14 and the boss 13, and the shape of the positioning block 11 is set according to the positioning hole 33.

[0032] The working principle of the utility model is as follows: first, the plastic product 3 is placed on the base 1, the positioning block 11 is matched with the positioning hole 33 to realize positioning of the plastic product 3, the first supporting block 12 is pressed against the back of the machining position 32, and the second supporting block 14 is pressed against the bottom surface of the plastic product 3. Then, the handle 22 is pressed, so that the pressing block 23 is pressed against the top surface of the plastic product 3. Then, the plastic product can be machined by CNC. After machining, the handle 22 is lifted upward, the handle 22 drives the extension arm 21 and the pressing block 23 to move away from above the plastic product 3, and finally the plastic product 3 is taken out from the base 1, so that the operation is simple.

[0033] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation, direct or indirect application in other related technical fields according to the contents of the utility model specification and drawings is also included in the patent protection range of the utility model.

Claims

1. A fixing jig for processing a plastic product, which is provided with a receiving groove (31) at the bottom of a fixed plastic product (3) and a processing position (32) at the top of the plastic product (3), the processing position (32) being at the back of the receiving groove (31), characterized in that, The fixing jig comprises a base (1) for placing a plastic product (3), the base (1) is provided with positioning blocks (11) for cooperating with positioning holes of the plastic product (3) to realize positioning, and is provided with first supporting blocks (12) for being pressed against the back of a processing position (32); the base (1) is provided with clamps (2) located at the periphery of the plastic product (3), the clamps (2) comprise extension arms (21); one end of the extension arm (21) is in transmission connection with a handle (22), and the other end of the extension arm (21) is connected with a pressing block (23); the handle (22) is used for driving the extension arm (21) to overturn up and down, and makes the pressing block (23) away from or press against the top end surface of the plastic product (3).

2. The fixture of claim 1, wherein The extension arm (21) is provided with a strip-shaped hole (211), the clamp (2) further comprises a screw rod (212) vertically penetrating through the strip-shaped hole (211), the screw rod (212) is fixedly connected with the pressing block (23) at the bottom end, and the screw rod (212) is fixed with the extension arm (21) through a nut.

3. The fixture of claim 1, wherein: The base (1) is provided with a boss (13), the clamp (2) comprises a mounting seat (24) fixedly connected with the boss (13), and the extension arm (21) and the handle (22) are in movable connection with the mounting seat (24).

4. The fixture of claim 1, wherein At least two clamps (2) are uniformly arranged around the periphery of the plastic product (3).

5. The fixture of claim 1, wherein: The pressing block (23) is arranged close to the processing position (32).

6. The fixture of claim 5, wherein: The base (1) is provided with second supporting blocks (14) for being pressed against the plastic product (3), and the pressing block (23) and the second supporting block (14) are used for clamping the plastic product (3) respectively from top to bottom.

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