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workbench mechanism

A workbench and lead screw technology, used in metal processing machinery parts, manufacturing tools, metal processing, etc., can solve the problems of large number of parts, bulging, and complex structure.

Active Publication Date: 2021-12-14
BIBLIOS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] However, the manual workbench disclosed in Patent Document 1 has the following problems: starting with the dovetail slide guide rail, it needs to slide and fix the screw, a plurality of slide adjustment screws, etc., so the number of parts is large, the structure is relatively complicated, and A large backlash occurs when the manual table is used, so the fixation of the manual table is insufficient
[0018] In addition, the table fixing device disclosed in Patent Document 2 needs to be installed so that the two machining axes protrude from the outside of the table (that is, from the outer periphery of the table), so there is a problem of increasing the size of the entire table.
In addition, there is a large backlash when fixing the table, and there is a problem of insufficient fixation of the table.
[0019] In addition, although the table mechanism disclosed in Patent Document 3 exhibits extremely good backlash reduction performance, the connecting portion including the feed screw protrudes from the side of the fixed table, resulting in further downsizing. demand

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0060] As a first embodiment, as the main structure, at least a feed screw, a fixed table, a movable table, a backlash absorption part, a deviation prevention part, a first rotary jig connection part, a pressing force adjustment part, a second The connecting part of the rotary jig and the guide rail are formed, and the movable table moves linearly when the guide rail moves along the two grooves provided on the fixed table.

[0061] figure 1 (a) is a perspective view showing the whole of the table mechanism 10 of the first embodiment, figure 1 (b) is along the figure 1 A cross-sectional view of the table mechanism 10 obtained when the A-A line in (a) is cut.

[0062] in addition, figure 2 It is a perspective view showing the disassembled state of the table mechanism 10 .

[0063] The table mechanism 10 is provided with a feed screw 11, and a space portion 13a having a built-in feed screw 11 (refer to figure 1 of (b), figure 2 ) of the fixed table 13, the movable tab...

Deformed example 1

[0152] In addition, as another example of the pressing force adjustment part 21 having a structure in contact with a spherical surface, it is preferable to use Figure 5 (c) used with Figure 5 As shown in the same section as in (b), a columnar member 21d whose end is processed into a spherical shape is used.

[0153] The reason for this is that the spherical portion can be omitted, and the structure of the pressing force adjustment portion can be simplified accordingly.

[0154] In addition, in Figure 5 In the example of (c), the end of the second end portion 11e of the feed screw 11 is provided with a spherical pressure receiving portion 11b having a mortar-like concave structure, and the end of the pressing adjustment portion is processed into a spherical surface. , but its inverse structure is also possible.

[0155] That is, it may be configured such that the end of the second end portion 11e of the feed screw 11 is processed into a spherical surface, and the end of t...

example 2

[0159] in addition, Figure 7 The pressing force adjustment part 21 of (a)-(b) is an example which utilizes a pivot structure. especially Figure 7 The pressing force adjustment part 21 shown in (a) is a columnar member having a structure in which the tip is processed into a triangular pyramid shape so as to correspond to the second end part 11e having a concave part capable of receiving a triangular pyramid. 21m constitutes an example of the pressing force adjustment unit 21 . Adopting such a structure makes it easier to process than making the tip into a spherical shape, so mass production becomes easier, and the structure of the pressing force adjustment part can be further simplified accordingly because no spherical member is used.

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PUM

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Abstract

The present invention provides a small table mechanism with less backlash and less play in the direction of the axis of the feed screw. A table mechanism (10) includes a feed screw (11), a fixed table (13) having a space portion (13a) in which the feed screw is built, a movable table (15), and a backlash absorption portion (17) , the feed screw is provided with a first end portion (11d) and a second end portion (11e), and the table mechanism is provided with a deviation preventing portion (19) that prevents the feed screw from deviating in the direction of the first end portion, and A pressing force adjusting portion (21) for adjusting the pressing force for pressing the feed screw from the second end side toward the first end portion, and the deviation preventing portion is in contact with the wall (13b) of the space portion on the first end portion side , and the pressing force adjustment portion is in line contact with and pressed against the second end portion.

Description

technical field [0001] The present invention relates to a table mechanism including a feed screw, which is a compact table mechanism with less backlash and less clearance along the axis of the feed screw. Background technique [0002] Table mechanisms for placing workpieces and moving them precisely are widely used in various industries. [0003] As one of such table mechanisms, there is a table mechanism disclosed in Patent Document 1, for example. Such as Figure 9 As shown, the workbench mechanism is to install the sliding part 204 of the precision equipment through the fastener, and the fixed part 205 connected to the base through the fastener is connected through the sliding mechanism, and the sliding part 204 is slid by the operation of the handle 219, The manual workbench 200 for adjusting the position of the installed precision equipment thereby. [0004] Furthermore, the fixing member 205 is made of resin. Grooves 232 are respectively provided in the longitudinal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G12B5/00B23Q1/58B23Q5/56
CPCG12B5/00B23Q1/282B23Q1/44
Inventor 中富芳春小野寺健铃木真司
Owner BIBLIOS CO LTD