A deburring fixture for holes in a CNC box mounting bracket

By designing a CNC box fixing bracket deburring tool that includes a base plate, clamping fixture and limiting structure, the problem of unstable fixing and deformation of the fixing bracket during the punching process is solved, achieving the effect of stable fixing and efficient deburring of the hole.

CN224424921UActive Publication Date: 2026-06-30ZHONGSHAN JIARUI INTELLIGENT TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN JIARUI INTELLIGENT TECH CO LTD
Filing Date
2025-05-30
Publication Date
2026-06-30

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Abstract

This utility model discloses a deburring fixture for a CNC box fixing bracket, including a base plate, a base for stably placing the product on the base plate, clamping clamps on both sides of the base, and an impact drive and impact module for impacting the product holes to deburr on one side of the base. The impact module is a detachable structure. A limiting structure for restricting the movement trajectory of the impact module is also provided on the base plate. This utility model allows the fixing bracket to be more firmly clamped by the clamping clamps, and the support block also helps to maintain the original installation position of the fixing bracket, so that the fixing bracket will not deform during the process of deburring flash, burrs, and burrs. The impact module is a multi-part module, which is convenient to disassemble and assemble. Therefore, the impact pin for punching can be disassembled and the connection between the impact module and the impact drive can also be disassembled and detached.
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Description

Technical Field

[0001] This utility model relates to the field of product-specific tooling, and in particular to a tooling for deburring holes in a CNC box fixing bracket. Background Technology

[0002] The CNC box houses the electronic components that control the system. The mounting bracket serves as the basic framework supporting the entire CNC box. Currently, drilling and slotting on this bracket results in various burrs, flash, and rough edges. Existing solutions mostly involve manual grinding, which is inefficient and costly. Some manufacturers use mechanical punching to remove burrs and rough edges from the holes, but this often presents various problems, such as: insufficient support for the mounting bracket, making it prone to deformation under the force of punching during deburring, leading to quality issues; the punching components are directly fixed to the punching drive, making them neither detachable nor stable; and insufficient limiting of the punching components can easily lead to displacement during punching, causing damage to the holes. Utility Model Content

[0003] To address the shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a device that can remove burrs, flash, and rough edges through mechanical punching, and the product is fixed and stable. The punching component is set as a module composed of multiple components, which can be assembled and disassembled, with perfect positioning to avoid quality problems after punching.

[0004] To achieve the above objectives, this utility model provides the following solution:

[0005] A deburring fixture for a CNC box fixing bracket includes a base plate, a base for stably placing products on the base plate, clamping fixtures on both sides of the base plate, and an impact drive and impact module for impacting the product holes to deburr on one side of the base plate. The impact module is detachable, and a limiting structure for restricting the movement trajectory of the impact module is also provided on the base plate.

[0006] Furthermore, the clamping fixture in this utility model includes a cylinder, and a pressure block that can press against both sides of the product is installed on the top movable end of the cylinder.

[0007] Furthermore, the base plate of this utility model is also provided with a support block for keeping the product clamped parallel.

[0008] Furthermore, the impact drive in this utility model includes a second cylinder, and a connecting plate is provided at the movable end of the front side of the second cylinder.

[0009] Furthermore, the impact module of this utility model includes a rear plate mounted on the connecting plate and an impact top plate located on the front side of the rear plate. The impact top plate is provided with a plurality of pin holes corresponding to the product hole positions, and detachable impact pins are provided in the pin holes.

[0010] Furthermore, the rear plate and the impact top plate in this utility model are fastened together by bolts.

[0011] Furthermore, the limiting structure in this utility model includes a slide rail set on the base plate, a slide groove fitted onto the slide rail at the bottom of the rear plate and the impact top plate, a transverse groove set on the base plate and in front of the slide rail, and a transverse limiting rod set in the transverse groove to limit the forward thrust position of the lower edge of the impact top plate.

[0012] In summary, the advantages of this utility model over the prior art are:

[0013] This invention utilizes a clamping fixture to ensure a more secure clamping of the fixed bracket. The support block also helps maintain the original installation position of the fixed bracket, preventing deformation during the removal of burrs, flash, and sharp edges. The impact module is a multi-component module, facilitating disassembly and assembly. Therefore, the impact pin used for punching can be installed and removed, as can the connection between the impact module and the impact drive. The limiting structure restricts the movement trajectory of the impact block, ensuring greater stability during movement and preventing displacement that could lead to quality issues. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the fixed bracket of this utility model after it has been installed;

[0015] Figure 2 This is one of the three-dimensional schematic diagrams of the fixed bracket of this utility model before it is installed;

[0016] Figure 3 This is the second perspective view of the fixed bracket of this utility model before it is installed;

[0017] Figure 4 This is a three-dimensional exploded view of the impact module and impact drive of this utility model;

[0018] Figure 5 This is a three-dimensional exploded view of the impact module of this utility model;

[0019] Figure 6 This is a three-dimensional schematic diagram of the fixed bracket of this utility model. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0021] like Figures 1 to 6 The present invention preferably provides a deburring fixture for a CNC box fixing bracket, comprising a base plate 1, a base 11 for stably placing a product on the base plate 1, clamping clamps 2 on both sides of the base 11, and an impact drive 3 and an impact module 4 for impacting the product holes to deburr on one side of the base 11. The impact module 4 is a detachable structure. A limiting structure 5 for restricting the movement trajectory of the impact module 4 is also provided on the base plate 1. The shape of the base can be matched to the specific shape of the fixing bracket so that the fixing bracket can be placed in a parallel state. After placement, it is secured by the clamping clamps. After the impact drive is activated, the impact module impacts the holes of the product, causing burrs, flash, and rough edges at the hole edges to fall off. The limiting structure restricts the movement trajectory of the impact module, ensuring that it punches the holes stably according to the set trajectory. The impact module consists of multiple components that can be assembled and disassembled, facilitating the installation and removal of the impact components.

[0022] The clamping fixture 2 described in this utility model includes a cylinder 21, and a pressure block 22 that can press against both sides of the product is installed on the top movable end of the cylinder 21. The pressure blocks on both sides are symmetrically arranged. The cylinder drives the pressure blocks to move downwards, pressing the fixed bracket down and fastening it to the base to complete the installation.

[0023] The base plate 1 of this invention is further provided with a support block 6 for keeping the product clamped parallel. The support block is provided to lift the fixed bracket except for the part clamped by the clamping fixture, so that the whole can keep parallel.

[0024] The impact drive 3 described in this invention includes a second cylinder 31, and a connecting plate 32 is provided at the movable end of the front side of the second cylinder 31. The second cylinder drives the connecting plate to push the impact module toward the fixed bracket. Both the first cylinder and the second cylinder are connected to an external air compressor.

[0025] The impact module 4 described in this utility model includes a rear plate 41 mounted on a connecting plate 32, and an impact top plate 42 located on the front side of the rear plate 41. The impact top plate 42 has several pin holes 43 corresponding to product hole positions, and detachable impact pins 44 are provided in the pin holes 43. The rear plate and impact top plate are fastened with bolts, allowing for assembly and disassembly. The pin holes are for installing the impact pins. The rear sides of the pin holes and impact pins are slightly larger, allowing the impact pins to be inserted from the rear sides of the pin holes and ensuring a secure and stable installation after assembling the impact top plate and rear plate.

[0026] In this utility model, the rear plate 41 and the impact top plate 42 are fastened together by bolts.

[0027] The limiting structure 5 described in this utility model includes a slide rail 51 mounted on a base plate 1. A groove 52, fitted onto the slide rail 51, is provided at the bottom of the rear plate 41 and the impact plate 42. A transverse groove 53 is provided on the base plate 1, located in front of the slide rail 51. A transverse limiting rod 54, which restricts the forward movement of the lower edge of the impact plate 42, is provided within the transverse groove 53. The cooperation of the slide rail and the groove allows the impact plate to slide linearly back and forth. The transverse limiting rod can be provided within the transverse groove to limit the forward movement of the impact plate.

[0028] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A deburring fixture for a CNC box fixing bracket, comprising a base plate (1), wherein a base (11) for stably placing a product is provided on the base plate (1), characterized in that: A clamping clamp (2) is provided on both sides of the base (11), and an impact drive (3) and an impact module (4) are provided on one side of the base (11) to impact the product holes and thus deburr. The impact module (4) is a detachable structure, and a limiting structure (5) for limiting the movement trajectory of the impact module (4) is also provided on the base plate (1).

2. The deburring fixture for the holes of a CNC box fixing bracket according to claim 1, characterized in that: The clamping fixture (2) includes a cylinder (21), and a pressure block (22) that can press against both sides of the product is installed on the top movable end of the cylinder (21).

3. The deburring fixture for the holes of a CNC box fixing bracket according to claim 1, characterized in that: A support block (6) for keeping the product clamped parallel is also provided on the base plate (1).

4. A deburring fixture for holes in a CNC box fixing bracket according to any one of claims 1-3, characterized in that: The impact drive (3) includes a second cylinder (31), and a connecting plate (32) is provided at the movable end of the front side of the second cylinder (31).

5. The deburring fixture for the holes of a CNC box fixing bracket according to claim 4, characterized in that: The impact module (4) includes a rear plate (41) mounted on a connecting plate (32) and an impact top plate (42) located on the front side of the rear plate (41). The impact top plate (42) has a plurality of pin holes (43) corresponding to the product hole positions, and a detachable impact pin (44) is provided in the pin holes (43).

6. The deburring fixture for the holes of a CNC box fixing bracket according to claim 5, characterized in that: The rear plate (41) and the impact top plate (42) are fastened together by bolts.

7. The deburring fixture for the holes of a CNC box fixing bracket according to claim 5, characterized in that: The limiting structure (5) includes a slide rail (51) set on the base plate (1), a slide groove (52) fitted into the slide rail (51) at the bottom of the rear plate (41) and the impact top plate (42), a transverse groove (53) set on the base plate (1) and located in front of the slide rail (51), and a transverse limiting rod (54) set in the transverse groove (53) to limit the forward thrust position of the lower edge of the impact top plate (42).