Rapid positioning device for three-coordinate measuring instrument

Abstract

The utility model provides a quick positioning device for a three-coordinate measuring instrument, and relates to the technical field of three-coordinate measuring instruments, the quick positioning device comprises a supporting seat, a frame body, a first adjusting assembly, a second adjusting assembly, a connecting piece and a fixing seat, the frame body is arranged at the outer top of the supporting seat, and a first adjusting cavity and a second adjusting cavity are respectively formed in the side wall surface of the frame body; a first through groove and a second through groove are formed in the inner wall face of the frame body, the first through groove communicates with the first adjusting cavity, and the second through groove communicates with the second adjusting cavity; the first adjusting assembly is located in the first adjusting cavity. The second adjusting assembly is located in the second adjusting cavity. The connecting piece is located between the adjusting end of the first adjusting assembly and the adjusting end of the second adjusting assembly and used for linking the first adjusting assembly and the second adjusting assembly. And the fixed seat is arranged at the adjusting end of the second adjusting assembly and is used for fixedly placing the tested workpiece. The rapid positioning device can adjust the measurement position at will and is suitable for measurement of different measured workpieces.

Description

Technical Field

[0001] This utility model relates to the field of coordinate measuring machine technology, and specifically to a rapid positioning device for a coordinate measuring machine. Background Technology

[0002] A coordinate measuring machine (CMM) is an instrument that can measure geometric shapes, lengths, and circumference divisions within a six-sided spatial area; it is also known as a coordinate measuring bed.

[0003] Currently, when using a coordinate measuring machine (CMM) for measurement, the measuring head of the CMM has a relatively fixed position and cannot be moved freely on the measuring table of the CMM. This makes it difficult to measure some workpieces. Utility Model Content

[0004] This invention addresses the problem that coordinate measuring machines (CMMs) cannot adjust their measurement position according to different workpieces during measurement. It provides a rapid positioning device for CMMs that allows for arbitrary adjustment of the measurement position to adapt to the measurement of different workpieces.

[0005] The technical solution adopted in this utility model is:

[0006] A rapid positioning device for a coordinate measuring machine is provided, comprising:

[0007] Support base;

[0008] The frame is located on the outer top of the support base. The side wall of the frame is provided with a first adjustment cavity and a second adjustment cavity, which are distributed on opposite sides. The inner wall of the frame is provided with a first through groove and a second through groove, which are connected to the first adjustment cavity and the second through groove are connected to the second adjustment cavity.

[0009] The first adjustment component is located inside the first adjustment cavity;

[0010] The second adjustment component is located inside the second adjustment cavity, and the movement direction of the second adjustment component is different from that of the first adjustment component.

[0011] A connector, located between the adjustment end of the first adjustment component and the adjustment end of the second adjustment component, is used to link the first adjustment component and the second adjustment component together.

[0012] The fixed base, located on the adjustment end of the second adjustment assembly, is used to fix the workpiece to be measured.

[0013] Optionally, the first adjustment component includes:

[0014] The first motor is located on the outer wall of the frame;

[0015] The first lead screw is located on the output end of the first motor. The other end of the first lead screw extends through the outer wall of the frame to the interior of the first adjustment cavity. A first nut is threaded onto the outer wall of the first lead screw. A first adjustment rod is provided on the outer wall of the first nut, passing through an adjacent first through slot. The other end of the first adjustment rod extends to the inner wall of the frame.

[0016] Optionally, the second adjustment component includes:

[0017] The second motor is located on the outer wall of the frame;

[0018] The second lead screw is located on the output end of the second motor. The other end of the second lead screw extends through the outer wall of the frame to the interior of the second adjustment cavity. A second lead nut is threaded onto the outer wall of the second lead screw. A second adjustment rod is provided on the outer wall of the second lead nut, which passes through an adjacent second through slot. The other end of the second adjustment rod extends to the inner wall of the frame.

[0019] Optionally, the connector includes;

[0020] link;

[0021] A first adjusting block is provided at the end of the connecting rod facing the first adjusting rod. A first sliding groove is provided on the outer wall of the first adjusting rod. The connecting rod is slidably connected to the first adjusting rod through the first adjusting block and the first sliding groove.

[0022] The second adjusting block is located at the end of the connecting rod facing the second adjusting rod. A second sliding groove is provided on the outer wall of the second adjusting rod. The connecting rod is slidably connected to the second adjusting rod through the second adjusting block and the second sliding groove.

[0023] Optionally, a screw hole is also provided on the outer wall of the second adjusting rod, and a screw is provided on the outer bottom of the fixing seat. The screw is threadedly connected to the second adjusting rod through the screw hole.

[0024] Optionally, a slot is provided on the side wall of the frame along the direction perpendicular to the top of the support base. The slot communicates with the first adjustment cavity. A baffle located inside the slot is slidably connected to the side wall of the frame. A communicating cavity communicating with the first adjustment cavity is provided on the side wall of the baffle, and a communicating groove communicating with the first through groove and the communicating cavity is provided on the inner wall of the baffle.

[0025] Optionally, a limiting ring is provided on the outer top circumference of the fixing seat.

[0026] Optionally, the outer wall surface of the first adjusting rod is also provided with multiple rollers, so that the first adjusting rod makes rolling contact with the outer top of the support base through the multiple rollers.

[0027] The beneficial effects of this utility model are:

[0028] The workpiece to be measured is placed on the top outer edge of the fixed base. Then, the fixed base is adjusted according to the position of the workpiece and the probe. During adjustment, the position of the fixed base is moved by operating the first adjustment component and the second adjustment component respectively. The first adjustment component can drive the fixed base to adjust in an adjustment direction different from that of the second adjustment component. The second adjustment component can also drive the fixed base to adjust in an adjustment direction different from that of the first adjustment component. This allows the fixed base to be moved to any position on the top outer edge of the support base, which is convenient for measuring the workpiece. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a top view of a rapid positioning device for a coordinate measuring machine disclosed in this embodiment;

[0031] Figure 2 This is a front view structural diagram of the connecting member between the first and second adjusting rods;

[0032] Figure 3 This is a side view of the baffle structure.

[0033] Figure label:

[0034] 1-Support base;

[0035] 2-Frame, 20-First adjustment cavity, 21-Second adjustment cavity, 22-First through slot, 23-Second through slot, 24-Slot;

[0036] 3-First adjusting component, 30-First motor, 31-First lead screw, 32-First lead screw nut, 33-First adjusting rod, 330-First slide groove, 34-First limiting block;

[0037] 4-Second adjusting component, 40-Second motor, 41-Second lead screw, 42-Second lead screw nut, 43-Second adjusting rod, 430-Second slide groove, 431-Screw hole, 44-Second limit block;

[0038] 5-Fixed base, 50-Limit ring, 51-Screw;

[0039] 6-Connecting rod, 60-First adjusting block, 61-Second adjusting block;

[0040] 7-baffle, 70-connecting cavity, 71-connecting groove;

[0041] 8-Roller. Detailed Implementation

[0042] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 of this utility model.

[0043] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this invention.

[0044] The embodiments of the utility model will now be described in detail with reference to the accompanying drawings.

[0045] Example

[0046] Please see Figure 1-3As shown, this embodiment discloses a rapid positioning device for a coordinate measuring machine (CMM), including a support base 1. In the CMM, the support base 1 is used to place and fix the workpiece to be measured. In this embodiment, a frame 2 is provided on the outer top of the support base 1. The frame 2 is installed on the outer top of the support base 1 by a detachable connection, specifically, a threaded connection or other detachable connection method. A first adjustment cavity 20 and a second adjustment cavity 21 are formed inside the side wall of the frame 2, wherein the side wall of the frame 2 where the first adjustment cavity 20 is located is different from the side wall of the frame 2 where the second adjustment cavity 21 is located. A first through groove 22 and a second through groove 23 are also formed on the inner wall of the frame 2, respectively. The first through groove 22 is connected to the first adjustment cavity 20, and the second through groove 23 is connected to the second adjustment cavity 21. A first adjustment assembly 3 is provided inside the first adjustment cavity 20. The first adjustment assembly 3 includes a first motor 30, a first lead screw 31, a first lead screw nut 32, and a first adjustment rod 33. The first motor 30 is located on the outer wall of the frame 2. The first lead screw 31 is located on the output end of the first motor 30. The first lead screw nut 32 is threadedly connected to the outer wall of the first lead screw 31, meaning that the first lead screw nut 32 can move along the central axis of the first lead screw 31 when it rotates. The first adjustment rod 33 is located on the outer wall of the first lead screw nut 32, and the other end of the first adjustment rod 33 extends to another inner wall of the frame 2. A first through groove 22 communicating with the first adjustment cavity 20 is formed on the inner wall of the frame 2. The other end of the first adjustment rod 33 extends from the inside of the first adjustment cavity 20 through the first through groove 22 into the inside of the frame 2 and abuts against the inner wall of the frame 2 relative to the first adjustment cavity 20. When the first motor 30 is running, it drives the first lead screw 31 to rotate. When the lead screw 31 rotates, it causes the first nut 32 to move on the outer wall of the lead screw 31 via a threaded connection. It is important to note that the first nut 32 is prevented from rotating along with the lead screw 31 by being limited by the first adjusting rod 33 and the frame 2. As the first nut 32 moves on the outer wall of the lead screw 31, it drives the first adjusting rod 33 to move, thereby enabling subsequent adjustment of the fixed seat 5 within the frame 2 along direction a.

[0047] To enhance the movement support effect of the first adjusting rod 33 within the frame 2, an additional first adjusting cavity 20 can be formed inside the frame 2. The sidewalls of the frame 2 containing the two first adjusting cavities 20 face each other, and a first through groove 22 communicating with the other first adjusting cavity 20 is formed on the inner wall of the frame 2. The other end of the first adjusting rod 33 extends into the interior of the other first adjusting cavity 20 through the other first through groove 22. A first limiting block 34 is provided at the end of the first adjusting rod 33 located inside the other first adjusting cavity 20. That is, when the first adjusting rod 33 moves, the sliding connection between the first adjusting rod 33 and the frame 2 through the first limiting block 34 enhances the movement support effect of the first adjusting rod 33.

[0048] A second adjustment cavity 21 is provided inside the side wall of the frame 2, which is different from the side wall where the first adjustment cavity 20 is provided. A second adjustment component 4 is provided inside the second adjustment cavity 21. The second adjustment component 4 can move and adjust inside the second adjustment cavity 21 in a direction different from the movement direction of the first adjustment rod 33. Specifically, the second adjustment component 4 includes a second motor 40, a second lead screw 41, a second lead screw 42, and a second adjustment rod 43. The second motor 40 is located on the outer wall of the frame 2, which is different from the outer wall of the first motor 30. The second lead screw 41 is provided on the output end of the first motor 30. The second lead screw 42 is threadedly connected to the outer wall of the second lead screw 41. The second adjustment rod 43 is provided on the outer wall of the second lead screw 42. The other end of the second adjustment rod 43 extends to the inner wall of the frame 2. It is worth noting that a second through groove 23 is also provided on the inner wall of the frame 2. The second through groove 23 is connected to the second adjustment cavity 21. The second through groove 23 allows the second adjustment rod 43 to pass through, so that the second adjustment rod 43 can move inside the frame 2 in a direction different from the first adjustment rod 33.

[0049] Another second adjustment cavity 21 is formed inside the other side wall of the frame 2 opposite to the frame 2 with the second adjustment cavity 21. A second through groove 23 is also formed on the side wall of the frame 2 located at the second adjustment cavity 21, and the second through groove 23 is connected to the second adjustment cavity 21. A second limiting block 44 is provided inside the second adjustment cavity 21, and the outer wall of the second limiting block 44 is connected to the end of the second adjusting rod 43. This allows the second adjusting rod 43 to move smoothly through the sliding connection between the second limiting block 44 and the frame 2, thereby improving the stability of the second adjusting rod 43's movement.

[0050] A connecting member is provided between the first adjusting rod 33 and the second adjusting rod 43 to link the first adjusting rod 33 and the second adjusting rod 43 together. Specifically, the connecting member includes a connecting rod 6, a first adjusting block 60, and a second adjusting block 61, wherein the first adjusting block 60 and the second adjusting block 61 are respectively located at the two ends of the connecting rod 6. A first sliding groove 330 is formed on the side wall of the first adjusting rod 33, and a second sliding groove 440 is formed on the side wall of the second adjusting rod 43, so that the first adjusting block 60 can be slidably connected to the first adjusting rod 33 through the first sliding groove 330, and the second adjusting block 61 can be slidably connected to the second adjusting rod 43 through the second sliding groove 440. That is, during use, the first adjusting rod 33 and the second adjusting rod 43 can be adjusted by running the first motor 30 or the second motor 40 respectively. Specifically, when the first motor 30 is running, the first motor 30 drives the first lead screw 31 to rotate, the first lead screw 31 drives the first lead screw nut 32 to move, and the first lead screw nut 32 moves. During the movement, the first adjusting rod 33 can be moved. During the movement of the first adjusting rod 33, the first adjusting rod 33 drives the connecting rod 6 to slide in the second slide groove 440 of the second adjusting rod 43 through the first adjusting block 60. When the position of the first adjusting rod 33 is adjusted properly, the second motor 40 is run. The second motor 40 drives the second lead screw 41 to rotate. The second lead screw 41 causes the second lead screw 42 to move inside the second adjusting cavity 21. When the second lead screw 42 moves, it can drive the second adjusting rod 43 to move, thereby realizing that the second adjusting rod 43 drives the connecting rod 6 to slide in the first slide groove 330 of the first adjusting rod 33.

[0051] A fixing seat 5 is provided on the outer wall of the second adjusting rod 43 to support the workpiece being measured. Specifically, a screw 51 is provided on the bottom of the fixing seat 5, and a screw hole 431 is provided on the outer wall of the second adjusting rod 43. The screw 51 is threadedly connected to the second adjusting rod 43 through the screw hole 431, meaning the fixing seat 5 can be removed from the outer wall of the second adjusting rod 43. A limiting ring 50 is provided around the fixing seat 5 to prevent the workpiece being measured from falling. It is worth noting that how to place and fix the workpiece being measured on the fixing seat 5 is a conventional technique for those skilled in the art, and will not be elaborated further here.

[0052] A slot 24 is provided on the side wall of the frame 2 along the direction perpendicular to the outer top of the support base 1. The slot 24 is connected to the first adjustment cavity 20 of the frame 2 located on the side wall. A baffle 7 located inside the slot 24 is slidably connected to the side wall of the frame 2. A connecting cavity 70 connected to the first adjustment cavity 20 is provided inside the side wall of the baffle 7. A connecting groove 71 connected to the connecting cavity 70 and the first through groove 22 is provided on the inner wall of the baffle 7 facing the central axis of the frame 2. That is, when the baffle 7 moves in the slot 24 to the point where the connecting cavity 70 and the first adjustment cavity 20 are connected, and the connecting groove 71 and the first through groove 22 are connected, the first adjustment rod 33 can move normally inside the frame 2. When it is necessary to remove the baffle 7 and replace the workpiece to be tested placed on the fixed base 5, the baffle 7 can be taken out from the slot 24 to facilitate the replacement of the workpiece to be tested.

[0053] Multiple rollers 8 are provided on the outer wall surface of the first adjusting rod 33. The multiple rollers 8 can not only support the first adjusting rod 33, but also make the first adjusting rod 33 move more smoothly.

[0054] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Without conflict, the embodiments and features described in the embodiments of this application can be arbitrarily combined with each other. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rapid positioning device for a three-coordinate measuring machine, characterized in that, include: Support base; A frame is disposed on the outer top of the support base. The sidewalls of the frame have a first adjustment cavity and a second adjustment cavity respectively, and the first and second adjustment cavities are distributed on opposite sides. The inner wall of the frame has a first through groove and a second through groove, the first through groove communicating with the first adjustment cavity and the second through groove communicating with the second adjustment cavity. A first adjustment component is located inside the first adjustment cavity. A second adjustment component is located inside the second adjustment cavity, and the movement direction of the second adjustment component is different from that of the first adjustment component. A connector, located between the adjustment end of the first adjustment component and the adjustment end of the second adjustment component, is used to link the first adjustment component and the second adjustment component together. A fixing seat is provided on the adjusting end of the second adjusting component and is used to fix the workpiece to be measured.

2. Rapid positioning device for a three-coordinate measuring machine according to claim 1, characterized in that The first adjustment component includes: a first motor disposed on the outer wall of the frame; a first lead screw disposed on the output end of the first motor, the other end of the first lead screw extending through the outer wall of the frame into the interior of the first adjustment cavity; a first nut threadedly connected to the outer wall of the first lead screw, and a first adjustment rod passing through an adjacent first through slot on the outer wall of the first nut; the other end of the first adjustment rod extending into the inner wall of the frame.

3. Rapid positioning device for a three-coordinate measuring machine according to claim 2, characterized in that The second adjustment component includes: a second motor disposed on the outer wall of the frame; a second lead screw disposed on the output end of the second motor, the other end of the second lead screw extending through the outer wall of the frame into the interior of the second adjustment cavity; a second nut threadedly connected to the outer wall of the second lead screw, and a second adjustment rod passing through an adjacent second through slot on the outer wall of the second nut; the other end of the second adjustment rod extending into the inner wall of the frame.

4. Rapid positioning device for a three-coordinate measuring machine according to claim 3, characterized in that The connecting component includes: a connecting rod; a first adjusting block disposed at one end of the connecting rod facing the first adjusting rod, wherein a first sliding groove is formed on the outer wall surface of the first adjusting rod, and the connecting rod is slidably connected to the first adjusting rod through the first adjusting block and the first sliding groove; and a second adjusting block disposed at one end of the connecting rod facing the second adjusting rod, wherein a second sliding groove is formed on the outer wall surface of the second adjusting rod, and the connecting rod is slidably connected to the second adjusting rod through the second adjusting block and the second sliding groove.

5. The rapid positioning device for a coordinate measuring machine according to claim 4, characterized in that, A screw hole is also provided on the outer wall of the second adjusting rod, and a screw is provided on the outer bottom of the fixing seat. The screw is threadedly connected to the second adjusting rod through the screw hole.

6. Rapid positioning device for a three-coordinate measuring machine according to claim 5, characterized in that A slot is provided on the side wall of the frame along the direction perpendicular to the top of the support base. The slot communicates with the first adjustment cavity. A baffle located inside the slot is slidably connected to the side wall of the frame. A communicating cavity communicating with the first adjustment cavity is provided on the side wall of the baffle. A communicating groove communicating with the first through slot and the communicating cavity are respectively provided on the inner wall of the baffle.

7. Rapid positioning device for a three-coordinate measuring machine according to claim 6, characterized in that The outer top circumference of the fixed base is provided with a limiting ring.

8. Rapid positioning device for a three-coordinate measuring machine according to claim 7, characterized in that The outer wall surface of the first adjusting rod is further provided with a plurality of rollers, so that the first adjusting rod is in rolling contact with the outer top of the support seat through the plurality of rollers.

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