A machine tool machining positioning mechanism

Abstract

This utility model discloses a machine tool machining positioning mechanism, belonging to the field of machine tool machining positioning technology. The device includes a base plate with several positioning points and a movable point. Each positioning point contains a positioning post, and the movable point contains a positioning plate. The positioning post and positioning plate together form several positioning areas of different sizes, which make surface contact with the parts to be machined. The advantages of this utility model are: it can position and machine parts of different sizes and shapes by adjusting the positioning plate and positioning post to form different positioning areas; simultaneously, the surface contact between these positioning areas and the parts effectively disperses clamping stress, thereby protecting the surface of the parts.

Description

Technical Field

[0001] This utility model relates to the field of machine tool machining positioning technology, and specifically to a machine tool machining positioning mechanism. Background Technology

[0002] During the machining process of parts, machine tools need to use positioning mechanisms to restrict the degrees of freedom of the parts and ensure that the parts maintain an accurate and stable position, thereby guaranteeing machining accuracy, efficiency and safety.

[0003] Modern positioning mechanisms typically employ a movable positioning block and several fixed positioning posts. By moving the positioning block relative to the positioning posts, the components clamped in the positioning posts can be tightened or loosened.

[0004] However, the drawbacks of this positioning mechanism are twofold. First, these mechanisms typically lack adaptability to parts of different shapes and sizes, resulting in low machining efficiency. Second, these positioning mechanisms usually use point-to-point contact to clamp parts, employing three or more contact points to restrict the movement of the parts. Point contact can cause significant contact stress on the outer surface of the parts, easily leading to indentations, scratches, or plastic deformation, thereby reducing machining efficiency. Utility Model Content

[0005] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a machine tool machining positioning mechanism that solves the problems of existing positioning mechanisms being unable to adapt to parts of different specifications and easily causing damage to the outer surface of parts, thereby reducing machine tool machining efficiency.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a machine tool processing positioning mechanism, comprising: a plurality of positioning points disposed on a base plate, and a movable point capable of moving on the base plate, wherein each positioning point is provided with a positioning post, and the movable point is provided with a positioning plate; wherein all the positioning posts and the positioning plate together form a plurality of positioning areas of different sizes, and the positioning areas form surface contact with the parts to be processed.

[0007] Optionally, the positioning point includes a first positioning point, two second positioning points, and two third positioning points, wherein the two second positioning points and the two third positioning points are symmetrically arranged on both sides of the first positioning point.

[0008] Optionally, there is an axis of symmetry between the two second positioning points, which passes through the first positioning point, and the moving point moves along the axis of symmetry.

[0009] Optionally, the positioning post includes a base fixed on the first positioning point, the second positioning point, and the third positioning point. The base has a rotating shaft, and a positioning block is rotatably disposed on the rotating shaft. The positioning block is fixed by a cap that is threadedly connected to the rotating shaft.

[0010] Optionally, the positioning block has a first arc surface, a first plane surface, and a first corner surface, the first arc surface, the first plane surface, and the first corner surface are evenly distributed around the rotation axis of the positioning block, and the angle of the first corner surface is a right angle.

[0011] Optionally, the positioning plate rotates around the moving point, and the positioning plate has a second arc surface, a second plane, and a second corner surface, wherein the angle of the second corner surface is a right angle.

[0012] Optionally, the bottom of the positioning plate is rotatably provided with a base with a pin hole, and the positioning plate is connected to the base by a pin, the pin being threaded into the pin hole.

[0013] Optionally, a plurality of pin holes are provided and are evenly distributed around the rotation axis of the positioning plate.

[0014] Optionally, a lead screw is threaded onto the base, the lead screw is rotatably connected to the base plate, the lead screw is driven by a motor, and a positioning rod is also provided on the base.

[0015] Optionally, the substrate has slots for moving the base and positioning plate.

[0016] The beneficial effects of this utility model are as follows:

[0017] The present invention has several positioning posts, which, together with the positioning plate, can form several positioning areas of different sizes. These positioning areas can meet the positioning requirements of parts of different sizes and shapes, so that the machine tool does not need to change the positioning mechanism when processing different parts, thereby improving the efficiency of the machine tool in processing parts.

[0018] Meanwhile, these positioning areas and the parts to be processed form surface contact. Compared with the point contact positioning method in traditional technology, these surface contacts can disperse the contact stress on the contact parts of the parts, thereby reducing the fatigue risk caused by stress concentration, ultimately reducing local deformation of the parts, protecting the parts from damage, and thus improving the efficiency of machine tool processing of parts. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a machine tool machining positioning mechanism according to the present invention.

[0021] Figure 2 This is a top view of a machine tool machining positioning mechanism according to the present invention.

[0022] Figure 3 This is an exploded three-dimensional view of the positioning column of a machine tool machining positioning mechanism according to this utility model.

[0023] Figure 4 This is a three-dimensional structural diagram of the positioning plate of a machine tool machining positioning mechanism according to the present invention.

[0024] Figure 5 This utility model relates to a machine tool machining positioning mechanism. Figure 1 Enlarged view of point A in the middle.

[0025] Figure 6 This is a positioning schematic diagram and a partial enlarged view of points a and b, which are provided for one embodiment of a machine tool machining positioning mechanism of this utility model.

[0026] Figure 7 This is a positioning schematic diagram and a partial enlarged view of point c, which are provided for another embodiment of the machine tool machining positioning mechanism of this utility model.

[0027] Figure 8 This is a positioning schematic diagram and a partial enlarged view of point d, which are provided for another embodiment of the machine tool machining positioning mechanism of this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Substrate; 11. First positioning point; 12. Second positioning point; 13. Third positioning point; 14. Moving point; 2. Positioning post; 21. Base; 211. Rotating shaft; 22. Positioning block; 221. First arc surface; 222. First plane; 223. First corner surface; 3. Cover; 4. Positioning plate; 41. Second arc surface; 42. Second plane; 43. Second corner surface; 5. Base; 51. Pin hole; 52. Pin; 6. Lead screw; 7. Positioning rod. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] As mentioned earlier, the shortcomings of existing positioning mechanisms in machine tool processing are twofold: First, these mechanisms typically lack adaptability to parts of different shapes and sizes, resulting in low processing efficiency. Second, these mechanisms usually use point-to-point contact to clamp parts, employing three or more contact points to restrict movement. Point contact can cause significant contact stress on the outer surface of the parts, easily leading to indentations, scratches, or plastic deformation, thus reducing processing efficiency.

[0032] To address this issue, the present invention provides a positioning mechanism for machining machine tool parts, thus solving the aforementioned problems. The present invention solves the problem in the following way.

[0033] Example 1:

[0034] Please refer to the instruction manual appendix. Figures 1 to 5 As shown in the figure, this utility model provides a machine tool machining positioning mechanism. The mechanism includes a base plate 1, on the surface of which five positioning points and one moving point 14 are arranged. The six positioning points include one first positioning point 11, two second positioning points 12, and two third positioning points 13. With the line connecting the first positioning point 11 and the moving point 14 as the axis of symmetry, the two second positioning points 12 and the two third positioning points 13 are symmetrically arranged on both sides of the axis of symmetry, thus forming a [structure as shown in the figure]. Figure 1 or Figure 2 The triangle shown is distributed with positioning points. Each positioning point is equipped with a positioning post 2, and the moving point 14 is equipped with a positioning plate 4. The moving point 14 also moves along the axis of symmetry.

[0035] like Figure 3 As shown, in this embodiment, the positioning post 2 includes a base 21 fixed on the first positioning point 11, the second positioning point 12 and the third positioning point 13. A rotating shaft 211 is fixed on the base 21. The positioning block 22 is sleeved on the rotating shaft 211 and can rotate around the rotating shaft 211 as the rotation axis. A cover 3 is also threaded on the rotating shaft 211. When the positioning block 22 rotates to the designated position, the position of the positioning block 22 can be fixed by screwing on the cover 3.

[0036] At the same time, such as Figure 5As shown in this embodiment, a base 5 with pin holes 51 is rotatably mounted on the bottom of the positioning plate 4. Several pin holes 51 are evenly distributed around the rotation axis of the positioning plate 4. The positioning plate 4 is connected to the base 5 by pins 52, which are threaded into the pin holes 51. By adjusting the thread twist of the pins 52 relative to the pin holes 51, the rotation of the positioning plate 4 can be fixed or loosened.

[0037] Therefore, in practical implementation, all the above-mentioned positioning posts 2 and positioning plates 4 together form several positioning areas of different sizes, which can position and clamp parts of different sizes, specifications and shapes.

[0038] And such Figure 3 As shown, in this first embodiment, the positioning block 22 has a first arc surface 221, a first plane 222, and a first corner surface 223. The first arc surface 221, the first plane 222, and the first corner surface 223 are evenly distributed around the rotation axis of the positioning block 22, and the angle of the first corner surface 223 is a right angle. This allows the first arc surface 221, the first plane 222, and the first corner surface 223 to respectively fit and clamp parts of different shapes, arcs, and sizes. Simultaneously, as... Figure 4 As shown, the positioning plate 4 has a second arc surface 41, a second plane 42 and a second corner surface 43, wherein the corner of the second corner surface 43 is a right angle. Similarly, it can also fit and clamp parts of different shapes, arc surfaces and sizes.

[0039] During the aforementioned clamping process, the positioning area forms a surface contact with the part to be processed. Compared with the point contact clamping in traditional technology, surface contact can disperse clamping stress, thereby better protecting the sides of the parts from damage.

[0040] Example 2:

[0041] Based on the above embodiments, in order to further clarify and completely explain the technical solutions therein, this utility model also provides an embodiment two. For example... Figure 5 As shown, in this second embodiment, a lead screw 6 is threadedly connected to the base 5. The lead screw 6 is rotatably connected to the base plate 1 and is driven by a motor. A positioning rod 7 is also provided on the base 5. The base plate 1 has a slot for the base 5 and the positioning plate 4 to move. When the motor is powered on, the base 5 begins to move within the slot under the influence of the threaded connection of the lead screw 6, thereby adjusting the positioning of parts of different sizes.

[0042] Of course, the aforementioned motor-driven lead screw 6 can also be replaced by a mechanism capable of driving the base 5 to move, such as a telescopic cylinder, a gear and rack transmission mechanism, etc.

[0043] Example 3:

[0044] Based on the above embodiments, in order to further clarify and completely explain the technical solutions therein, this utility model also provides an embodiment three. In this embodiment three, as... Figure 6 As shown, in Figure 6 In this mechanism, the component being positioned is a square (rhombus) shape. After adjusting the position of the moving point 14 and the positioning plate 4 located at the moving point 14, the positioning block 22 at the first positioning point 11 uses its first corner face 223 to clamp one corner of the square (rhombus) component, while the positioning plate 4 at the moving point 14 uses its second corner face 43 to clamp the other corner of the square (rhombus) component. Correspondingly, the two positioning blocks 22 at the second positioning point 12 use their first plane 222 to clamp the sides of the square (rhombus) component, and the two positioning blocks 22 at the third positioning point 13 use their second corner faces 43 to clamp the remaining two corners of the square (rhombus) component.

[0045] Thus, the square (rhomboid) component is positioned and clamped at its two sides and four corners using the aforementioned positioning and clamping method, with all sides in surface contact.

[0046] Example 4:

[0047] Based on the above embodiments, in order to further clarify and completely explain the technical solutions therein, this utility model also provides Embodiment Four. In this Embodiment Four, as... Figure 7 As shown, in Figure 7 In this design, the component being positioned is a circular part. After adjusting the position of the moving point 14 and the positioning plate 4 located at the moving point 14, the positioning blocks 22 at the first positioning point 11 and the third positioning point 13 do not contact the circular component. The two positioning blocks 22 at the second positioning point 12 abut against the circular component through the first arc surface 221, forming two contact surfaces respectively. At the same time, the positioning plate 4 abuts against the circular component using the second arc surface 41, forming a third contact surface.

[0048] These three contact surfaces achieve positioning and clamping of the circular component from three directions, and all are surface contacts, which disperses the clamping stress. At the same time, by adjusting the position of the positioning plate 4, the positioning blocks 22 at the first positioning point 11 and the third positioning point 13 can be used to clamp circular components of different diameters.

[0049] Example 5:

[0050] Based on the above embodiments, in order to further clarify and completely explain the technical solutions therein, this utility model also provides Embodiment Five. In this Embodiment Five, as... Figure 8 As shown, in Figure 8 In this mechanism, the component being positioned is a rectangular part. After adjusting the position of the moving point 14 and the positioning plate 4 located at the moving point 14, the positioning block 22 at the first positioning point 11 does not contact the rectangular component. The positioning blocks 22 at the second positioning point 12 and the third positioning point 13 contact the rectangular component using the first plane 222. The positioning plate 4 contacts the rectangular component using the second plane 42, thus forming a... Figure 8 The five fixed points shown are all surface contacts, which disperses the clamping stress. At the same time, by adjusting the position of the positioning plate 4, the positioning blocks 22 at the first positioning point 11 and the third positioning point 13 can be used to clamp rectangular parts of different diameters.

[0051] Therefore, in summary, the machine tool machining positioning mechanism and its various embodiments of this utility model have the following advantages, including but not limited to, compared with the prior art:

[0052] The positioning pins 2 of this utility model are multiple, and these positioning pins 2 and positioning plates 4 can be combined to form several positioning areas of different sizes. These positioning areas can meet the positioning requirements of parts of different sizes and shapes, so that the machine tool does not need to change the positioning mechanism when processing different parts, thereby improving the efficiency of the machine tool in processing parts.

[0053] Meanwhile, these positioning areas and the parts to be processed form surface contact. Compared with the point contact positioning method in traditional technology, these surface contacts can disperse the contact stress on the contact parts of the parts, thereby reducing the fatigue risk caused by stress concentration, ultimately reducing local deformation of the parts, protecting the parts from damage, and thus improving the efficiency of machine tool processing of parts.

[0054] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of this utility model and its equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A machine tool positioning mechanism, characterized by, include: A plurality of positioning points are provided on the substrate (1), and a moving point (14) is capable of moving on the substrate (1). Each positioning point is provided with a positioning post (2), and the moving point (14) is provided with a positioning plate (4). Among them, all the positioning posts (2) and the positioning plate (4) together form a number of positioning areas of different sizes, and the positioning areas form surface contact with the parts to be processed.

2. A machine tool positioning mechanism as claimed in claim 1, characterised in that, The positioning points include a first positioning point (11), two second positioning points (12) and two third positioning points (13), and the two second positioning points (12) and the two third positioning points (13) are symmetrically arranged on both sides of the first positioning point (11).

3. A machine tool positioning mechanism as claimed in claim 2, wherein There is an axis of symmetry between the two second positioning points (12), which passes through the first positioning point (11), and the moving point (14) moves along the axis of symmetry.

4. A machine tool positioning mechanism as claimed in claim 2, wherein, The positioning post (2) includes a base (21) fixed on the first positioning point (11), the second positioning point (12) and the third positioning point (13). The base (21) has a rotating shaft (211). A positioning block (22) is rotatably disposed on the rotating shaft (211). The positioning block (22) is fixed by a cover (3) threadedly connected to the rotating shaft (211).

5. A machine tool positioning mechanism as claimed in claim 4, wherein The positioning block (22) has a first arc surface (221), a first plane (222) and a first corner surface (223). The first arc surface (221), the first plane (222) and the first corner surface (223) are evenly distributed around the rotation axis of the positioning block (22), and the angle of the first corner surface (223) is a right angle.

6. The machine tool machining positioning mechanism as described in claim 1, characterized in that, The positioning plate (4) rotates around the moving point. The positioning plate (4) has a second arc surface (41), a second plane (42) and a second corner surface (43). The angle of the second corner surface (43) is a right angle.

7. A machine tool machining positioning mechanism as described in claim 6, characterized in that, The bottom of the positioning plate (4) is rotatably provided with a base (5) with a pin hole (51). The positioning plate (4) is connected to the base (5) by a pin (52), and the pin (52) is threaded into the pin hole (51).

8. A machine tool machining positioning mechanism as described in claim 7, characterized in that, The pin holes (51) are provided in several places and are evenly distributed around the rotation axis of the positioning plate (4).

9. A machine tool machining positioning mechanism as described in claim 7, characterized in that, A lead screw (6) is threaded onto the base (5), and the lead screw (6) is rotatably connected to the base plate (1). The lead screw (6) is driven by a motor, and a positioning rod (7) is also provided on the base (5).

10. A machine tool machining positioning mechanism as described in claim 9, characterized in that, The substrate (1) has slots for moving the base (5) and the positioning plate (4).

Images