Hollow moving table structure

Abstract

The utility model discloses a hollow moving table structure which comprises a machine table and a moving table arranged on the machine table in a front-back moving mode, a first open groove penetrating up and down is formed in the middle of the machine table, a second open groove penetrating up and down is formed in the moving table, and the first open groove and the second open groove at least partially coincide and are communicated with each other. Compared with an existing mounting mode needing a portal frame, the mounting structure can be effectively optimized through the design of the first open grooves and the second open grooves, the number of parts is reduced, cost is saved, and the assembling and debugging efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to a hollow moving table structure. Background Art

[0002] In the application of measurement projects, the moving table is installed on the marble tabletop. To ensure the accuracy of measurement, it is necessary to detect the position of the moving object installed on the moving table. The current detection method is to detect through a capacitive sensor. However, the traditional moving table is a solid structure, which leads to the need to install a frame similar to a gantry on the marble tabletop when installing the capacitive sensor. A cross bar is passed through the two sides of the moving table from the frame and located above the moving table, and then the capacitive sensor is installed on this cross bar. In this structure, it is also necessary to set a detected object protruding upward on the upper surface of the moving table. The detected object moves with the moving table and the distance between it and the capacitive sensor changes to perform position detection. This installation method of fixedly connecting the gantry to the marble tabletop will increase the height of the entire measuring device due to the use of the gantry, and it is necessary to assemble the gantry separately. At the same time, it is necessary to ensure that the cross bar of the gantry is in a horizontal state, and the assembly and debugging are relatively complex, which needs to be further improved. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a hollow moving table structure that can directly install a capacitive sensor on the marble tabletop.

[0004] A hollow moving table structure designed according to this purpose includes a machine table and a moving table that moves forward and backward on the machine table. A first slot that penetrates up and down is provided in the middle of the machine table, and a second slot that penetrates up and down is provided on the moving table. At least part of the first slot coincides with and communicates with the second slot.

[0005] Preferably, guide rail assemblies are respectively arranged on the left and right sides of the machine table and connected to the moving table.

[0006] Preferably, the guide rail assembly is a crossed roller guide rail.

[0007] Preferably, a linear motor is arranged on the machine table, and the driving end of the linear motor is fixedly connected to the moving table.

[0008] Preferably, the guide rail assembly includes a first guide rail, a second guide rail, and a retainer. The first guide rail is fixedly installed on the moving table, the second guide rail is fixedly arranged on the machine table, and the retainer is arranged between the first guide rail and the second guide rail and slides back and forth relative to both of them.

[0009] Compared with the prior art, a first slot penetrating up and down is provided in the middle of the machine table, and a second slot penetrating up and down is provided on the moving table. At least part of the first slot coincides with and communicates with the second slot. In actual application, a capacitive sensor is installed on the marble tabletop in the first slot, and the detection end of the capacitive sensor is at the same height as the second slot. By performing inductive measurement between the detection end of the capacitive sensor and the groove wall of the second slot, the position of the moving table can be detected. Compared with the existing installation method that requires a gantry, the design of the first slot and the second slot can effectively optimize the installation structure and reduce the number of parts, not only saving costs but also improving the efficiency of assembly and debugging. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a three-dimensional structural diagram of the present utility model;

[0011] Figure 2 is an exploded structural diagram of the present utility model;

[0012] Figure 3 is a structural diagram of the moving table arranged on the marble tabletop. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] The present utility model will be further described below with reference to the drawings and embodiments.

[0014] See Figures 1 - 3 , a hollow moving table structure includes a machine table 10 and a moving table 20 movably arranged back and forth on the machine table 10. A first slot 110 penetrating up and down is provided in the middle of the machine table 10, and a second slot 210 penetrating up and down is provided on the moving table 20. At least part of the first slot 110 coincides with and communicates with the second slot 210.

[0015] See Figure 3 , in actual application, a capacitive sensor 60 is installed on the marble tabletop 50 in the first slot 110. The detection end of the capacitive sensor 60 is at the same height as the second slot 210. By performing inductive measurement between the detection end of the capacitive sensor 60 and the front or rear groove wall of the second slot 210, the position of the moving table 20 can be detected.

[0016] Further, a linear motor 40 is provided on the machine table 10, and the driving end of the linear motor 40 is fixedly connected to the moving table 20.

[0017] Further, guide rail assemblies 30 are respectively arranged on the left and right sides of the machine table 10 and connected to the moving table 20.

[0018] In the present utility model, the guide rail assembly 30 is a crossed roller guide rail.

[0019] SeeFigure 2 The guide rail assembly 30 includes a first guide rail 310, a second guide rail 320, and a retainer 330. The first guide rail 310 is fixedly mounted on the platform 20, the second guide rail 320 is fixedly mounted on the machine platform 10, and the retainer 330 is disposed between the first and second guide rails 310 and slidably relative to the first and second guide rails 320. Cross-roller guides are conventional technology that effectively restrict the left and right and up and down movement of the platform 20, ensuring stability during its forward and backward movement relative to the machine platform 10.

[0020] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0022] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A hollow moving table structure, comprising a machine table (10) and a moving table (20) that is arranged to move back and forth on the machine table (10), characterized in that: A first slot (110) penetrating up and down is provided in the middle of the machine table (10), and a second slot (210) penetrating up and down is provided on the moving table (20). At least part of the first slot (110) coincides with and communicates with the second slot (210).

2. The hollow moving table structure according to claim 1, wherein: Guide rail assemblies (30) are respectively provided on the left and right sides of the machine table (10) and are connected to the moving table (20).

3. A hollow moving table structure according to claim 2, characterized in that: The guide rail assembly (30) is a crossed roller guide rail.

4. A hollow moving table structure according to claim 1, characterized in that: A linear motor (40) is provided on the machine table (10), and the driving end of the linear motor (40) is fixedly connected to the moving table (20).

5. A hollow moving table structure according to claim 2 or 3, characterized in that: The guide rail assembly (30) includes a first guide rail (310), a second guide rail (320), and a retainer (330). The first guide rail (310) is fixedly installed on the moving table (20), the second guide rail (320) is fixedly provided on the machine table (10), and the retainer (330) is arranged between the first guide rail (310) and the second guide rail (320) and is slidably arranged back and forth relative to the two.

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