Fixing tool for detecting part of three-coordinate measuring instrument

Abstract

The utility model relates to the technical field of part fixing tools, in particular to a fixing tool of a three-coordinate measuring instrument for detecting parts, which comprises a workbench, a base, a fixing column, a bolt and a limiting piece, the fixing column comprises a first threaded rod and a column body, the top of the first threaded rod is fixedly connected with the column body, the top of the column body is provided with a sliding groove, and the sliding groove is fixedly connected with the base. A sliding groove is formed in the upper portion of the base, an extending column is connected to the inner side of the sliding groove in a sliding mode, a positioning column is fixedly connected to the top of the extending column, a clamping groove is formed in the inner side of the extending column, and a clamping block is connected to the inner side of the clamping groove in a clamped mode. The extension column drives the positioning column to move, the fixing column is extended through the extension column and the positioning column, and the problem that the length of the fixing column cannot be adjusted according to actual conditions due to limited action length is solved.

Description

Technical Field

[0001] This utility model relates to the field of parts fixing fixture technology, specifically a fixing fixture for a coordinate measuring machine to inspect parts. Background Technology

[0002] Fixtures are an important component of coordinate measuring machines (CMMs). They are mainly used to precisely position parts in predetermined locations during the measurement process. Fixtures ensure the stability and accuracy of parts during measurement, thereby improving the reliability of measurement results.

[0003] Common fixtures for measuring parts using a coordinate measuring machine (CMM) typically consist of a fixed post with a threaded rod at the bottom, a base, and a limiting component. The part is placed on top of the fixed post, which positions the part. However, the fixed post is usually of a fixed length, with a limited effective length that cannot be adjusted according to actual conditions, thus reducing the efficiency of the fixture for measuring parts using a CMM. Therefore, this paper proposes a fixture for measuring parts using a CMM to address the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a fixture for inspecting parts using a coordinate measuring machine, so as to solve the problem of the limited working length of the fixing column.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A fixture for inspecting parts using a coordinate measuring machine includes a worktable, a base, fixing columns, bolts, and limiting components. The worktable includes a panel and screw holes. The inner side of the panel has several evenly spaced screw holes. The top of the panel is provided with a base, which includes a bottom plate, an arc-shaped groove, and a through hole. The inner side of the bottom plate has the arc-shaped groove and the through hole. A portion of the fixing column is located inside the arc-shaped groove. Each fixing column includes a first threaded rod and a column body. The top of the first threaded rod is fixedly connected to the column body, and the top of the column body has a sliding groove. An extension column is slidably connected to the inner side of the slide groove, and a positioning column is fixedly connected to the top of the extension column. The inner side of the extension column has evenly arranged slots, and two symmetrically arranged slots are engaged with a locking block on their inner sides. A connecting rod is fixedly connected to the outer side of the locking block, and a connecting block is fixedly connected to the end of the connecting rod away from the locking block. The inner side of the column has symmetrically arranged through slots, and the connecting rod is located inside the through slots. A partial limiting member is provided inside the through hole. The limiting member includes a second threaded rod and a knob, and a knob is fixedly connected to the top of the second threaded rod.

[0007] Preferably, one side of the card slot is arc-shaped, and one side of the card block is arc-shaped.

[0008] Preferably, a spring is provided on the outer side of the connecting block, and the two ends of the spring are fixedly connected to the column and the connecting block, respectively.

[0009] Preferably, the inner side of the column is fixedly connected with a threaded sleeve that is evenly arranged, and the bolt passes through the connecting block and is spirally connected to the threaded sleeve.

[0010] Preferably, the bottom plate is in contact with the upper surface of the panel, the first threaded rod is disposed inside the arc groove, the second threaded rod is disposed inside the through hole, the first threaded rod passes through the arc groove and is spirally connected to the threaded hole, and the second threaded rod passes through the through hole and is spirally connected to the threaded hole.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this utility model, the structure composed of a sliding groove, an extension column, a positioning column, a slot, and a locking block allows the extension column to slide in the sliding groove, which in turn moves the positioning column and engages the locking block inside the slot, thus positioning the extension column. The extension column and the positioning column extend the fixed column, solving the problem that the fixed column has a limited working length and cannot be adjusted according to actual conditions. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the assembly structure of the fixing column of this utility model;

[0015] Figure 3 This utility model Figure 2 A schematic diagram of the structure at point A;

[0016] Figure 4 This is a cross-sectional structural diagram of the column of this utility model;

[0017] Figure 5 This utility model Figure 4 Schematic diagram of the cross-sectional structure at point B.

[0018] In the diagram: 1. Workbench; 101. Panel; 102. Screw hole; 2. Base; 201. Base plate; 202. Arc groove; 203. Through hole; 3. Fixed post; 301. First threaded rod; 302. Column; 4. Slide groove; 5. Extension post; 6. Positioning post; 7. Slot; 8. Locking block; 9. Connecting rod; 10. Connecting block; 11. Spring; 12. Through groove; 13. Screw sleeve; 14. Bolt; 15. Limiting component; 1501. Second threaded rod; 1502. Knob. Detailed Implementation

[0019] 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.

[0020] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0021] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0022] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0023] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0024] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0025] Please see Figure 1-5 This utility model provides a technical solution:

[0026] A fixture for inspecting parts using a coordinate measuring machine includes a worktable 1, a base 2, fixing posts 3, bolts 14, and limiting components 15. The worktable 1 includes a panel 101 and screw holes 102. The inner side of the panel 101 has several evenly arranged screw holes 102. The base 2 is located on the top of the panel 101. The base 2 includes a base plate 201, an arc-shaped groove 202, and a through hole 203. The inner side of the base plate 201 has the arc-shaped groove 202 and the through hole 203. A portion of the fixing posts 3 are located inside the arc-shaped groove 202. The fixing posts 3 include a first threaded rod 301 and a column body 302. The top of the first threaded rod 301 is fixedly connected to the column body 302. The top of the column body 302 has a sliding groove 4. The inner side of the sliding groove 4... The extension column 5 is slidably connected to the side, and the top of the extension column 5 is fixedly connected to the positioning column 6. The inner side of the extension column 5 is provided with uniformly arranged slots 7, and the inner sides of two symmetrically arranged slots 7 are engaged with locking blocks 8. The outer side of the locking blocks 8 is fixedly connected to the connecting rod 9, and the end of the connecting rod 9 away from the locking blocks 8 is fixedly connected to the connecting block 10. The inner side of the column body 302 is provided with symmetrically arranged through slots 12, and the connecting rod 9 is located inside the through slots 12. The inner side of the through hole 203 is provided with a partial limiting member 15, which includes a second threaded rod 1501 and a knob 1502. The top of the second threaded rod 1501 is fixedly connected to the knob 1502. This arrangement allows the fixed column 3 to be extended through the extension column 5 and the positioning column 6.

[0027] One side of the slot 7 is arc-shaped, and the other side of the locking block 8 is arc-shaped. This design makes it easy for the locking block 8 to engage inside the slot 7. A spring 11 is provided on the outer side of the connecting block 10. The two ends of the spring 11 are fixedly connected to the column 302 and the connecting block 10, respectively. This design allows the spring 11 to provide cushioning and protection for the column 302 and the connecting block 10. A threaded sleeve 13 is fixedly connected to the inner side of the column 302 in a uniformly arranged manner. A bolt 14 passes through the connecting block 10 and the threaded sleeve 13 in a spiral pattern. The connection allows for the installation of the connecting block 10; the base plate 201 is in contact with the upper surface of the panel 101, the first threaded rod 301 is located inside the arc groove 202, and the second threaded rod 1501 is located inside the through hole 203. The first threaded rod 301 passes through the arc groove 202 and is spirally connected to the screw hole 102, and the second threaded rod 1501 passes through the through hole 203 and is spirally connected to the screw hole 102. This configuration allows for the positioning of the base plate 201.

[0028] Workflow: When fixing a part to a coordinate measuring machine using a fixture, first place the base 2 on top of the worktable 1, aligning the arc groove 202 and through hole 203 in the base plate 201 with the screw hole 102 in the panel 101. Then, insert the second threaded rod 1501 through the through hole 203 into the screw hole 102. Rotate the knob 1502 to make the second threaded rod 1501 spiral with the screw hole 102, i.e., through the limit... Positioning component 15 positions the base 2, then aligns the first threaded rod 301 with the screw hole 102, and rotates the column 302. The column 302 drives the first threaded rod 301, extension column 5, and positioning column 6 to rotate, causing the first threaded rod 301 to spiral through the arc-shaped groove 202 and into the screw hole 102. This achieves the installation of the fixing column 3, extension column 5, and positioning column 6. Parts inspected by a coordinate measuring machine can then be placed on top of the positioning column 6, thus fixing the parts. When the fixing column 3 needs to be changed... When the working length is reached, rotating bolt 14 causes bolt 14 to spiral with threaded sleeve 13, disengaging bolt 14 from threaded sleeve 13 and connecting block 10 in sequence. This removes the bolt 14's constraint on connecting block 10, allowing connecting block 10 to be pulled away from column 302. This causes connecting block 10 to move connecting rod 9 and locking block 8, disengaging locking block 8 from slot 7. At this point, spring 11 is stretched, removing its constraint on extension column 5. The positioning column 6 then drives extension column 5 to move upwards or downwards, allowing... The extension column 5 can slide inside the slide groove 4. When the extension column 5 moves to the desired position, the locking block 8 is aligned with the through groove 12 and the locking slot 7, and the locking block 8 is re-locked inside the locking slot 7. At this time, the spring 11 is compressed. The spring 11 can buffer and protect the connecting block 10 and the column 302, thereby achieving the positioning of the extension column 5. Then, the bolt 14 is re-passed through the connecting block 10 and screwed to the threaded sleeve 13, thereby achieving the positioning of the connecting block 10. That is, the fixed column 3 can be extended by the extension column 5 and the positioning column 6.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A three-coordinate measuring instrument detects the fixed tooling of parts, including workbench (1), base (2), fixed column (3), bolts (14) and limiting parts (15), characterized in that: The workbench (1) includes a panel (101) and a threaded hole (102), the inner side of the panel (101) is provided with a plurality of uniformly arranged threaded holes (102), the top of the panel (101) is provided with a base (2), the base (2) includes a bottom plate (201), an arc-shaped groove (202) and a through hole (203), the inner side of the bottom plate (201) is provided with an arc-shaped groove (202), the inner side of the bottom plate (201) is provided with a through hole (203), the inner side of the arc-shaped groove (202) is provided with a part of a fixed column (3), the fixed column (3) includes a first threaded rod (301) and a column body (302), the top of the first threaded rod (301) is fixedly connected with the column body (302), the top of the column body (302) is provided with a sliding groove (4), the inner side of the sliding groove (4) is slidably connected with an extension column (5), the top of the extension column (5) is fixedly connected with a positioning column (6), the inner side of the extension column (5) is provided with a plurality of uniformly arranged clamping grooves (7), the inner sides of two symmetrically arranged clamping grooves (7) are clampedly connected with clamping blocks (8), the outer side of the clamping block (8) is fixedly connected with a connecting rod (9), the end, away from the clamping block (8), of the connecting rod (9) is fixedly connected with a connecting block (10), the inner side of the column body (302) is provided with a plurality of symmetrically arranged through grooves (12), the connecting rod (9) is arranged on the inner side of the through groove (12), the inner side of the through hole (203) is provided with a part of a limiting piece (15), and the limiting piece (15) includes a second threaded rod (1501) and a rotating knob (1502).

2. The fixture for measuring a part on a coordinate measuring machine of claim 1, wherein: The clamping groove (7) is arranged in an arc shape on one side, and the clamping block (8) is arranged in an arc shape on one side.

3. The fixture of claim 1, wherein: The outer side of the connecting block (10) is provided with a spring (11), and the two ends of the spring (11) are fixedly connected with the column body (302) and the connecting block (10) respectively.

4. The fixture of claim 1, wherein: The inner side of the column body (302) is fixedly connected with a plurality of uniformly arranged screw sleeves (13), and the bolt (14) is screw-connected with the screw sleeve (13) penetrating through the connecting block (10).

5. The fixture of claim 1, wherein: The upper end surfaces of the bottom plate (201) and the panel (101) are attached to each other, the first threaded rod (301) is arranged on the inner side of the arc-shaped groove (202), the second threaded rod (1501) is arranged on the inner side of the through hole (203), the first threaded rod (301) is screw-connected with the threaded hole (102) penetrating through the arc-shaped groove (202), and the second threaded rod (1501) is screw-connected with the threaded hole (102) penetrating through the through hole (203).

Images