High protection type numerical control machine tool sine wave feedback switching box

Abstract

The utility model discloses a high protection type sine wave feedback switching box of a numerical control machine tool. The switching box comprises a box body made of aluminum alloy in a die-casting mode, electronic elements are placed in the box body and are not filled with glue, a metal plate upper cover is fixedly installed on the top of the box body, a silica gel waterproof sealing ring is arranged between the metal plate upper cover and the box body, an input end military waterproof connector is arranged at the input end of the box body, and the input end military waterproof connector is connected with the input end military waterproof connector. An output end is provided with an output end military-grade waterproof connector, four U-shaped installation structures extending towards the two ends are formed at the corners of the top of the box body respectively, the box body can be installed on a spindle box through the U-shaped installation structures, and the distance between a cable of the encoder and the box body is not larger than 2 m. The high protection type numerical control machine tool sine wave feedback switching box can shorten the signal transmission distance to achieve the anti-interference effect, can resist oil contamination invasion, and solves the problems caused by the installation position and protection defects of an existing rotary wave switching box.

Description

Technical Field

[0001] This utility model relates to the field of machine tools, and in particular to a high-protection CNC machine tool sine wave feedback adapter box. Background Technology

[0002] The old-style sine wave feedback converter box is usually installed in the electrical cabinet box. The cable distance from the motor encoder to the converter box is generally as long as 8-10 meters, which makes the 1Vpp sine wave signal susceptible to external interference and causes a variety of problems, such as signal distortion.

[0003] Some current improvements involve moving the adapter box (ADAPTER) inside the spindle housing to shorten cable distances. However, due to the insufficient protection level of older modules, this solution still has certain protection deficiencies. For example, IP65 only protects internal potted electronic components without sealing rings, external connectors lack IP protection, and the connectors are generally non-waterproof DSUB connectors. If the potting compound is full, oil and moisture can easily seep in and cause damage over time. Therefore, this solution is prone to connector corrosion and module failure due to oil seepage, and requires complete replacement after potting compound failure, which is not only time-consuming and labor-intensive but also has high repair costs. Utility Model Content

[0004] To address the aforementioned issues, this invention provides a highly protective CNC machine tool sine wave feedback adapter box, which can both shorten the signal transmission distance to achieve anti-interference effects and resist oil contamination, thus mitigating the problems caused by the installation location and protection defects of existing rotary wave converter boxes.

[0005] According to one aspect of this utility model, a high-protection CNC machine tool sine wave feedback adapter box is provided, comprising a box body made of die-cast aluminum alloy, wherein electronic components are placed inside the box body and no glue is applied, a sheet metal cover is fixedly installed on the top of the box body, a silicone waterproof sealing ring is provided between the sheet metal cover and the box body, the input end of the box body is provided with an input end military-grade waterproof connector, and the output end is provided with an output end military-grade waterproof connector, and four U-shaped mounting structures are formed at each corner of the top of the box body, extending to both ends respectively, the box body can be mounted on the spindle box through each of the U-shaped mounting structures, and the cable from the encoder to the box body is no more than 2 meters long.

[0006] In some embodiments, the four corners of the sheet metal cover are fixedly mounted to the top of the box body by four cover screws. The advantage is that it describes the specific method by which the sheet metal cover is mounted to the top of the box body.

[0007] In some embodiments, text is printed on the bottom surface of the box. This is advantageous because the text allows for the standardization of important information about the adapter box.

[0008] In some implementations, the text includes a name, trademark, and the orientation of the input and output terminals. Its advantage lies in describing the content of the text printed on the bottom surface of the box.

[0009] In some embodiments, the military-grade waterproof input connector is mounted to the housing using multiple mounting screws. The advantage is that it describes a specific method of mounting the military-grade waterproof input connector to the housing.

[0010] In some embodiments, both the input and output military-grade waterproof connectors are provided with multiple connection holes, each surrounded by a numbered digit. The advantage lies in that it further describes the specific structure of the input and output military-grade waterproof connectors. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the top structure of a high-protection CNC machine tool sine wave feedback adapter box according to one embodiment of the present invention.

[0012] Figure 2 for Figure 1 The figure shows a three-dimensional bottom structure of a high-protection CNC machine tool sine wave feedback adapter box.

[0013] Figure 3 for Figure 2 The diagram shows a side view of the input end of a high-protection CNC machine tool sine wave feedback adapter box.

[0014] Figure 4 for Figure 2 The diagram shows a side view of the output end of a high-protection CNC machine tool sine wave feedback adapter box.

[0015] In the diagram: 1. Box body; 2. Sheet metal top cover; 3. Military-grade waterproof connector for input; 4. Military-grade waterproof connector for output; 5. U-shaped mounting structure; 6. Top cover screw; 7. Text; 8. Mounting screw; 9. Connecting hole; 10. Number. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings.

[0017] like Figure 1-4 As shown, the adapter box includes a box body 1, which is roughly rectangular in shape and made of die-cast aluminum alloy. The interior of the box body 1 houses electronic components such as PCB circuit boards without the need for potting. A sheet metal cover 2 is fixedly installed on the top of the box body 1, and a silicone waterproof sealing ring (not shown in the figure) is provided between the sheet metal cover 2 and the box body 1, thereby achieving a high-protection, fully sealed environment.

[0018] In addition, four U-shaped mounting structures 5 extending to both ends are formed at the top corners of the housing 1. In use, each U-shaped mounting structure 5 can be installed on the side of the spindle box with screws of the corresponding size, which can shorten the cable from the encoder to the adapter box to less than 2 meters and avoid long-distance signal attenuation.

[0019] Preferably, the four corners of the sheet metal cover 2 are fixedly installed on the top of the box body 1 by four cover screws 6.

[0020] Preferably, the bottom surface of the box 1 is printed with black text 7 to indicate its name, trademark, and the direction of the input and output ends.

[0021] One end of the housing 1 is the input end, and a military-grade waterproof connector 3 is provided on the input end. The military-grade waterproof connector 3 is installed by multiple mounting screws 8.

[0022] The other end of the housing 1 is the output end, and a military-grade waterproof connector 4 is provided on the output end.

[0023] Preferably, the input-end military-grade waterproof connector 3 and the output-end military-grade waterproof connector 4 have multiple holes 9, and each hole 9 is surrounded by a number 10, which is used to mark the number of the hole 9. When installing the junction box, it is first confirmed that the number 10 of the hole 9 should be in the reversed state.

[0024] When assembling this adapter box, first place the PCB and other electronic components inside the box 1 and tighten them with screws. Then, install the military-grade waterproof connector 3 at the input end and the military-grade waterproof connector 4 at the output end, and secure them with mounting screws 8, etc. Finally, install the silicone waterproof sealing ring and cover it with the sheet metal cover 2, securing the sheet metal cover 2 with the cover screws 6 to achieve high protection and a fully sealed finish. When using this adapter box, it can be mounted on the side of the spindle box using screws through the U-shaped mounting structures 5.

[0025] Compared with the old rotary wave converter box, the high-protection CNC machine tool sine wave feedback adapter box of this utility model has the following advantages:

[0026] 1. Improved anti-interference performance: Its signal transmission distance is shortened by more than 80%, and the signal-to-noise ratio of 1Vpp signal is improved by 40%;

[0027] 2. Reduced failure rate: The failure rate due to oil stain corrosion is reduced by more than 90%, approaching zero;

[0028] 3. Cost advantage: Compared with the imported SME20 module commonly used in the old model, the cost is reduced by 35%, and it is compatible with the existing machine tool wiring architecture.

[0029] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A high-guard CNC machine tool string wave feedback patch panel, characterized by: The utility model provides an aluminium alloy die casting box body (1) is placed with electronic components in the inside of the box body (1) and does not fill glue, and the top of the box body (1) is fixedly installed with a sheet metal upper cover (2), and the sheet metal upper cover (2) is provided with silica gel waterproof sealing ring between the box body (1), and the input end of the box body (1) is provided with input end military level waterproof connector (3), and the output end is provided with output end military level waterproof connector (4), and the top of the box body (1) is formed with four U-shaped mounting structures (5) respectively extending to both ends in each corner, and the box body (1) can be installed on the main shaft box through each U-shaped mounting structure (5), and the cable of encoder to the box body (1) is not more than 2 meters.

2. A high-guarded numerical control machine tool chordal wave feedback adapter box according to claim 1, characterized in that: The four corners of the sheet metal upper cover (2) are fixedly installed on the top of the box body (1) through four upper cover screws (6).

3. The high-guarded numerical control machine tool chordal wave feedback adapter box according to claim 1, characterized in that: The bottom surface of the box body (1) is printed with characters (7).

4. A high-guarded numerical control machine tool chordal wave feedback adapter box according to claim 3, characterized in that: The characters (7) include name, trademark, input end and output end direction.

5. A high-guarded numerical control machine tool chordal wave feedback adapter box according to claim 1, characterized in that: The input end military level waterproof connector (3) is installed on the box body (1) through a plurality of mounting screws (8).

6. A high-guarded numerical control machine tool chordal wave feedback adapter box according to claim 1, characterized in that: A plurality of connector holes (9) are arranged on the input end military level waterproof connector (3) and the output end military level waterproof connector (4), and a numbered digit (10) is arranged around each connector hole (9).

Images