CNC clamping jig for plastic shell

Abstract

The utility model discloses a plastic shell CNC clamping jig which comprises a device fixing plate, the center of the inner surface of the bottom of the device fixing plate is fixedly connected with a center T-shaped rotating shaft, the outer wall of the center T-shaped rotating shaft is rotatably connected with two guide mechanisms, the two sides of the inner wall of the device fixing plate are both slidably connected with limiting frames, and the limiting frames are fixedly connected with the center T-shaped rotating shaft. Clamping assemblies are arranged between the two limiting frames and the two guide mechanisms correspondingly, and side edge connecting blocks are fixedly connected to the bottoms of the sides, away from each other, of the two limiting frames correspondingly. According to the plastic shell clamping device, the multiple clamping assemblies are designed, under limiting of the guide mechanism and the limiting frame and driving of the electric telescopic rod, fixing and clamping of a plastic shell are completed, meanwhile, the corresponding positions of the multiple clamping assemblies can be adjusted at will through the rotating guide mechanism, and therefore plastic shells of any specification can be limited; and the application range of the device is greatly expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic shell processing, in particular to a CNC clamping fixture for a plastic shell. Background Art

[0002] Plastics are mainly composed of carbon, oxygen, hydrogen, nitrogen and other organic or inorganic elements. The finished product is solid, and it is a molten liquid during the manufacturing process. Therefore, it can be heated to melt, pressurized to make it flow, and cooled to solidify, forming various shapes. With the rapid development of the plastics industry and the continuous improvement of plastic performance, plastic parts have been more widely used. Plastic parts are replacing traditional metal parts in different fields. Due to its excellent properties and low price, many products will choose plastic as the outer shell to support and protect the internal products.

[0003] During the production process of the plastic shell, the plastic shell obtained by injection molding needs to be reprocessed and drilled on the CNC to ensure better fixation of the product and connection with other parts. However, most of the existing CNC clamping fixtures are fixed using a clamping mechanism. During use, it cannot be adjusted according to the size and shape of the plastic shell, and the driving structure is relatively complicated.

[0004] Therefore, there is an urgent need to provide a plastic shell CNC clamping fixture to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is that some CNC clamping jigs cannot be adjusted according to the size and shape of the plastic shell during use, and the driving structure is relatively complicated.

[0006] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a plastic shell CNC clamping fixture, including a device fixing plate, the center of the inner surface of the bottom of the device fixing plate is fixedly connected with a central T-shaped rotating shaft, the outer wall of the central T-shaped rotating shaft is rotatably connected with two guide mechanisms, and both sides of the inner wall of the device fixing plate are slidably connected with a limited position frame;

[0007] A clamping assembly is provided between the two limit frames and the two guide mechanisms respectively, and the two limit frames are fixedly connected to side connecting blocks at the bottom of the side away from each other, and electric telescopic rods are installed between the two sides of the device fixing plate and the corresponding side connecting blocks.

[0008] The utility model is further configured as follows: a groove is provided at the center of the device fixing plate, and the middle section of the groove is a rectangular structure.

[0009] Through the above technical solution, the top and bottom of the groove are both circular structures, and the center is a rectangular structure. The circular structure at the bottom facilitates the rotation of the guide mechanism, and the rectangular structure in the middle facilitates the limited sliding of the limit frame.

[0010] The utility model is further configured as follows: a plurality of fan-shaped through holes are provided at the bottom of the device fixing plate.

[0011] Through the above technical solution, the fan-shaped through holes are opened so that the center is a cross-shaped structure, and then the residual materials after polishing the plastic shell will fall through the through holes.

[0012] The utility model is further configured as follows: the guide mechanism includes a limit connecting ring rotatably connected to the outer wall of the central T-shaped rotating shaft, guide rods are fixedly connected on both sides of the limit connecting ring, and the two guide rods are installed with adjusting limit bolts on the side away from the limit connecting ring, and the bottoms of the two adjusting limit bolts are spirally connected with locking nut blocks.

[0013] Through the above technical solution, when clamping the plastic shell, the plastic shell is placed between the tops of multiple clamping components, and then the multiple clamping components are pulled to make them fixed in various corners of the plastic shell. In this process, the guide mechanism and the limit frame rotate and move accordingly, and then the locking nut block is screwed to fix the guide mechanism. When in use, the electric telescopic rod pushes the limit frame to slide, and at the same time, the clamping component will slide under the limit of the guide mechanism and the limit frame. Multiple clamping components are approached, and then the plastic shell is placed. The electric telescopic rod pulls the limit frame to slide, and then the multiple clamping components open, and finally the entire plastic shell is supported to complete the fixation of the plastic shell.

[0014] The utility model is further configured as follows: a groove corresponding to the screw head of the regulating limit bolt is formed on the top of one end of each of the two guide rods.

[0015] The above technical solution ensures that when the locking nut block is turned, the adjusting limit bolt will not rotate therewith.

[0016] The utility model is further configured as follows: one side of the bottom inner surface of the device fixing plate is provided with two arc-shaped through holes corresponding to the regulating limit bolts.

[0017] Through the above technical solution, the arc-shaped through hole ensures that the adjustment limit bolt can pass through the device fixing plate and can be locked and fixed at any time.

[0018] The utility model is further configured as follows: the clamping assembly comprises a clamping rod slidably connected between the guide mechanism and the limit frame, and the outer wall of the clamping rod is fixedly connected to the limit plate in the limit frame.

[0019] Through the above technical solution, the clamping rod slides within the limiting frame through the limiting plate, and the sliding is completed through the limiting of the bottom of the clamping rod and the guide mechanism.

[0020] The utility model is further configured as follows: a strip-shaped through hole corresponding to the clamping rod and the limiting plate is opened at the center of the limiting frame.

[0021] The above technical solution ensures that both the clamping rod and the limiting plate can pass through the limiting frame.

[0022] The beneficial effects of the utility model are as follows:

[0023] The utility model designs a plurality of clamping components, and completes the fixed clamping of the plastic shell under the limitation of the guide mechanism and the limit frame and the drive of the electric telescopic rod. At the same time, the corresponding positions of the plurality of clamping components can be adjusted at will through the rotating guide mechanism, so as to complete the limitation of plastic shells of any specifications, thereby greatly improving the application range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional diagram of the utility model;

[0025] Figure 2 This is a structural diagram of the internal part of the fixing plate of the device of the utility model;

[0026] Figure 3 This is a structural diagram of the guide mechanism of the utility model;

[0027] Figure 4 This is a structural diagram of the limit frame and clamping assembly of the utility model.

[0028] In the figure: 1. device fixing plate; 2. center T-shaped rotating shaft; 3. guide mechanism; 301. limit connecting ring; 302. guide rod; 303. adjustment limit bolt; 304. locking nut block; 4. limit frame; 5. clamping assembly; 51. clamping rod; 52. limit plate; 6. side connecting block; 7. electric telescopic rod. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0030] See also Figure 1 and Figure 2A plastic shell CNC clamping fixture includes a device fixing plate 1, a groove is opened in the center of the device fixing plate 1, and the middle section of the groove is a rectangular structure, the top and bottom of the groove are circular structures, and the center is a rectangular structure. The circular structure at the bottom is convenient for the rotation of the guide mechanism 3, and the rectangular structure in the middle section is convenient for the limited sliding of the limit frame 4. A plurality of fan-shaped through holes are opened at the bottom of the device fixing plate 1. The opening of the fan-shaped through holes makes the center a cross-shaped structure, and then the residual material after grinding the plastic shell will fall through the through holes. The center of the inner surface of the bottom of the device fixing plate 1 is fixedly connected with a central T-shaped rotating shaft 2;

[0031] like Figure 1-Figure 4 As shown, the outer wall of the central T-shaped rotating shaft 2 is rotatably connected to two guide mechanisms 3, and the guide mechanism 3 includes a limit connection ring 301 rotatably connected to the outer wall of the central T-shaped rotating shaft 2, and both sides of the limit connection ring 301 are fixedly connected to guide rods 302, and the two guide rods 302 are installed with adjustment limit bolts 303 on the side away from the limit connection ring 301, and the bottoms of the two adjustment limit bolts 303 are spirally connected with locking nut blocks 304. When clamping the plastic shell, the plastic shell is placed between the tops of multiple clamping components 5, and then the multiple clamping components 5 are pulled to fix them in various corners of the plastic shell. In this process, the guide mechanism 3 and the limit frame 4 rotate and move accordingly, and then the locking nut block 304 is screwed to fix the guide mechanism 3. When in use, the electric telescopic rod 7 pushes the limit frame 4 slides, and at the same time, the clamping assembly 5 will slide under the limit of the guide mechanism 3 and the limit frame 4, and multiple clamping assemblies 5 are close to each other, and then the plastic shell is placed, and the electric telescopic rod 7 pulls the limit frame 4 to slide, and then multiple clamping assemblies 5 are opened, and finally the entire plastic shell is supported to complete the fixation of the plastic shell. The top of one end of the two guide rods 302 is provided with a groove corresponding to the screw head of the adjustment limit bolt 303, ensuring that when the locking nut block 304 is screwed, the adjustment limit bolt 303 will not rotate therewith, and one side of the bottom inner surface of the device fixing plate 1 is provided with two arc-shaped through holes corresponding to the adjustment limit bolt 303, and the arc-shaped through holes ensure that the adjustment limit bolt 303 can pass through the device fixing plate 1 and can be locked and fixed at any time, and both sides of the inner wall of the device fixing plate 1 are slidably connected to the limit frame 4;

[0032] like Figure 1-Figure 4As shown, a clamping assembly 5 is respectively provided between the two limit frames 4 and the two guide mechanisms 3, and the clamping assembly 5 includes a clamping rod 51 slidably connected between the guide mechanism 3 and the limit frame 4, and the outer wall of the clamping rod 51 is fixedly connected to the limit plate 52 in the limit frame 4, and the clamping rod 51 slides in the limit frame 4 through the limit plate 52, and the sliding is completed by the limit of the bottom of the clamping rod 51 and the guide mechanism 3. A strip through hole corresponding to the clamping rod 51 and the limit plate 52 is opened in the center of the limit frame 4, which ensures that the clamping rod 51 and the limit plate 52 can pass through the limit frame 4, and the two limit frames 4 are fixedly connected with a side connecting block 6 at the bottom on the side away from each other, and an electric telescopic rod 7 is installed between the two sides of the device fixing plate 1 and the corresponding side connecting block 6.

[0033] When the utility model is in use, the plastic shell is placed between the tops of the plurality of clamping assemblies 5, and then the plurality of clamping assemblies 5 are pulled to fix them at various corners of the plastic shell. During this process, the guide mechanism 3 and the limit frame 4 rotate and move accordingly, and then the locking nut block 304 is screwed to fix the guide mechanism 3. When in use, the electric telescopic rod 7 pushes the limit frame 4 to slide, and at the same time, the clamping assembly 5 will slide under the limit of the guide mechanism 3 and the limit frame 4. The plurality of clamping assemblies 5 are close to each other, and then the plastic shell is placed. The electric telescopic rod 7 pulls the limit frame 4 to slide, and then the plurality of clamping assemblies 5 are opened, and finally the entire plastic shell is supported to complete the fixation of the plastic shell.

[0034] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A plastic shell CNC clamping fixture, comprising a device fixing plate (1), characterized in that: A central T-shaped rotating shaft (2) is fixedly connected to the center of the inner surface of the bottom of the device fixing plate (1), two guide mechanisms (3) are rotatably connected to the outer wall of the central T-shaped rotating shaft (2), and both sides of the inner wall of the device fixing plate (1) are slidably connected to the limiting frames (4); A clamping assembly (5) is provided between each of the two limit frames (4) and the two guide mechanisms (3); a side connecting block (6) is fixedly connected to the bottom of the two limit frames (4) on the side away from each other; and an electric telescopic rod (7) is installed between the two sides of the device fixing plate (1) and the corresponding side connecting block (6).

2. A plastic shell CNC clamping fixture according to claim 1, characterized in that: A groove is provided at the center of the device fixing plate (1), and the middle section of the groove is a rectangular structure.

3. The plastic shell CNC clamping fixture according to claim 1, characterized in that: A plurality of fan-shaped through holes are provided at the bottom of the device fixing plate (1).

4. The plastic shell CNC clamping fixture according to claim 1, characterized in that: The guide mechanism (3) comprises a limit connection ring (301) rotatably connected to the outer wall of the central T-shaped rotating shaft (2), guide rods (302) are fixedly connected to both sides of the limit connection ring (301), and the two guide rods (302) are installed with adjustment limit bolts (303) on the side away from the limit connection ring (301), and the bottoms of the two adjustment limit bolts (303) are spirally connected with locking nut blocks (304).

5. The plastic shell CNC clamping fixture according to claim 4, characterized in that: A groove corresponding to the screw head of the adjusting limit bolt (303) is formed on the top of one end of each of the two guide rods (302).

6. The plastic shell CNC clamping fixture according to claim 4, characterized in that: One side of the inner surface of the bottom of the device fixing plate (1) is provided with two arc-shaped through holes corresponding to the adjustment limit bolts (303).

7. The plastic shell CNC clamping fixture according to claim 1, characterized in that: The clamping assembly (5) comprises a clamping rod (51) slidably connected between the guide mechanism (3) and the limit frame (4), and the outer wall of the clamping rod (51) is fixedly connected to a limit plate (52) in the limit frame (4).

8. The plastic shell CNC clamping fixture according to claim 7, characterized in that: The center of the limiting frame (4) is provided with a strip-shaped through hole corresponding to the clamping rod (51) and the limiting plate (52).

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