Tool point space position error and attitude error measuring device

Abstract

The utility model discloses a tool point space position error and attitude error measuring device, which belongs to the technical field of tool precision detection and comprises a base, universal wheels are uniformly mounted at the bottom of the base, positioning mechanisms are arranged on two sides of the base, a storage groove is formed in one end of the top of the base, and an L-shaped cover is mounted at the bottom end of the storage groove in a hinged manner. A pillar is vertically mounted at one end of the base away from the storage groove. The measuring device body is installed on the second sliding plate, the second sliding plate can move in the length direction of the mounting plate, the mounting plate can move on the outer side of the supporting column along with the first sliding plate, and meanwhile the rotating motor on the fixing block can control rotation of the mounting plate, so that in the using process of the device, the measuring device is not prone to falling off. The height of the measuring device body can be adjusted, the measuring device body is rotated and folded into the storage groove after use, and use and storage are more convenient.

Description

Technical Field

[0001] The utility model relates to an error measuring device, in particular to a measuring device for the spatial position error and attitude error of a tool point, belonging to the technical field of tool precision detection. Background Technique

[0002] In the prior art, as disclosed in the invention with the application number 201410811379.4, a synchronous detection mechanism for the attitude of a five-axis machine tool tool and the position error of the tool tip point is disclosed. In order to solve the problem that the R-test detector can only detect the displacement errors in three circumferential directions of the tool tip point on a five-axis numerical control machine tool, but cannot reflect the attitude of the five-axis numerical control machine tool tool and the swing angle amount of the tool deviating from the Z direction of the workbench coordinate system and the rotation angle amount around this direction, which will increase the inaccuracy of the measurement results to a certain extent. By setting a mandrel inside the spherical connecting piece, the swinging motion is separated from the spatial movement and rotational movement. In this way, the measurement of the tool swing angle amount is ensured and the interference with the measurement of other motion forms is avoided. A three-axis orthogonal follow-up platform is used to follow the spatial movement of the ball head, and the rotation angle amount of the connecting shaft, that is, the rotation angle amount of the spherical connecting piece, is measured by an optical encoder installed on the follow-up platform, ensuring that the measurement of the spherical center rotation angle of the spherical connecting piece is not affected by the movement of its spherical center.

[0003] The similar applications currently have the following deficiencies:

[0004] During the measurement process, due to the different heights of machine tools, in order to facilitate the measurement, it is necessary to cooperate with an external support for use, and the measurement is relatively inconvenient. In addition, after the measurement, the device cannot be folded and stored, which is not convenient for storage and use;

[0005] Therefore, a measuring device for the spatial position error and attitude error of a tool point is designed to optimize the above problems. Content of the Utility Model

[0006] The main purpose of the utility model is to provide a measuring device for the spatial position error and attitude error of a tool point. By installing the measuring device body on the second slide plate, the second slide plate can move along the length direction of the mounting plate, and the mounting plate can move along the outside of the support column with the first slide plate. At the same time, the rotary motor on the fixed block can control the rotation of the mounting plate, so that during the use of the device, the height of the measuring device body can be adjusted, and after the use is completed, the measuring device body can be rotated and folded into the storage groove, making the use and storage more convenient. By installing universal wheels at the bottom of the base and cooperating with the positioning mechanism composed of a rectangular sleeve, an L-shaped plate, a return spring, a mounting groove, a plug, a compression spring, a slot, and a pull rod, the movement of the device is more convenient. In addition, the position of the device is fixed by stepping on the fixing method to control the positioning mechanism, and the operation is simple, practical and convenient.

[0007] The object of the utility model can be achieved by adopting the following technical solutions:

[0008] A measuring device for the spatial position error and attitude error of a tool point, comprising a base, universal wheels are uniformly installed at the bottom of the base, positioning mechanisms are provided on both sides of the base, a storage groove is opened at one end of the top of the base, an L-shaped cover is hingedly installed at the bottom end of the storage groove, a support column is vertically installed at the end of the top of the base far from the storage groove, a first sliding plate is vertically slidably installed on the side of the support column close to the storage groove, fixing blocks are symmetrically installed on the outer side of the first sliding plate, a mounting plate is rotatably installed between the two groups of fixing blocks, a rotating motor for controlling the rotation of the mounting plate is installed on the outer side of the fixing block, a second sliding plate is slidably arranged along the length direction on the inner side of the mounting plate, a measuring device body is installed on the second sliding plate, lifting components are provided on both the support column and the mounting plate for controlling the sliding of the first sliding plate and the second sliding plate.

[0009] Preferably: Magnet blocks are provided on the outer sides of both ends of the L-shaped cover, and metal sheets cooperating with the magnet blocks are provided at the top ends of both sides of the storage groove.

[0010] Preferably: A push handle is installed at the top of the outer side of the support column, and an anti-slip sleeve is provided on the push handle.

[0011] Preferably: The lifting component includes a guide groove, a lifting motor and a screw rod. The guide groove is vertically opened on the side edges of the support column and the mounting plate. A screw rod is rotatably installed between the upper and lower ends of the guide groove. The lifting motor is provided at the bottom end of the screw rod, and the output shaft of the lifting motor is connected to the screw rod. Both the first sliding plate and the second sliding plate are threadedly connected to the screw rod.

[0012] Preferably: The positioning mechanism includes a rectangular sleeve, an L-shaped plate, a return spring and a locking member. The rectangular sleeve is fixed on the outer side of the base. An L-shaped plate is slidably arranged inside the rectangular sleeve. A return spring is installed between the top of the L-shaped plate and the inner top of the rectangular sleeve. A locking member for fixing the L-shaped plate is provided at the bottom of the outer side of the rectangular sleeve.

[0013] Preferably: The locking member includes a mounting groove, a plug, a compression spring, a slot and a pull rod. A mounting groove is opened at the bottom of the outer side of the rectangular sleeve. A plug is slidably installed inside the mounting groove. The shape of the plug is a right trapezoid. A slot cooperating with the plug is opened on the L-shaped plate. A compression spring is installed between the plug and the inner end of the mounting groove. A pull rod is fixed at one end of the plug close to the compression spring, and the pull rod extends to the outside of the rectangular sleeve.

[0014] Preferably: An anti-slip pad is provided at the bottom of the L-shaped plate, and anti-slip lines are provided at the bottom of the anti-slip pad.

[0015] The beneficial effects of the utility model are:

[0016] A measuring device for the spatial position error and attitude error of a tool tip provided by the utility model can adjust the height of the measuring device body during use and rotate and fold the measuring device body into the storage groove after use, making it more convenient for use and storage by installing the measuring device body on the second slide plate, where the second slide plate can move along the length direction of the mounting plate, and the mounting plate can move outside the support column with the first slide plate, and at the same time, the rotating motor on the fixed block can control the rotation of the mounting plate.

[0017] By installing universal wheels at the bottom of the base and using the positioning mechanism composed of a rectangular sleeve, an L-shaped plate, a return spring, a mounting groove, a plug, a compression spring, a slot, and a pull rod, the movement of the device is made more convenient. In addition, the position of the device is fixed by stepping on and fixing the positioning mechanism, which is simple, practical, and convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the main view unfolded diagram of the utility model;

[0019] Figure 2 It is the folded state diagram of the utility model;

[0020] Figure 3 It is the side view of the support column of the utility model;

[0021] Figure 4 It is the positioning mechanism diagram of the utility model.

[0022] In the figure: 1. Base; 2. Universal wheel; 3. Positioning mechanism; 4. Storage groove; 5. L-shaped cover; 6. Support column; 7. First slide plate; 8. Fixed block; 9. Mounting plate; 10. Rotating motor; 11. Second slide plate; 12. Measuring device body; 13. Guide groove; 14. Lifting motor; 15. Screw; 16. Rectangular sleeve; 17. L-shaped plate; 18. Return spring; 19. Mounting groove; 20. Plug; 21. Compression spring; 22. Slot; 23. Pull rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] To make the technical solutions of the present utility model clearer and more definite for those skilled in the art, the present utility model will be further described in detail below with reference to the embodiments and the accompanying drawings, but the embodiments of the present utility model are not limited thereto.

[0024] Such as Figures 1 - 4As shown in the figure, this embodiment provides a measuring device for the spatial position error and attitude error of a tool point, including a base 1. Universal wheels 2 are evenly installed at the bottom of the base 1. Positioning mechanisms 3 are provided on both sides of the base 1. A storage groove 4 is opened at one end of the top of the base 1. An L-shaped cover 5 is hingedly installed at the bottom end of the storage groove 4. A support column 6 is vertically installed at the end of the top of the base 1 away from the storage groove 4. A first sliding plate 7 is vertically slidably installed on the side of the support column 6 close to the storage groove 4. Fixed blocks 8 are symmetrically installed on the outer side of the first sliding plate 7. A mounting plate 9 is rotatably installed between the two groups of fixed blocks 8. A rotary motor 10 for controlling the rotation of the mounting plate 9 is installed on the outer side of the fixed block 8. A second sliding plate 11 is slidably arranged along the length direction on the inner side of the mounting plate 9. A measuring device body 12 is installed on the second sliding plate 11. Lifting components are provided on both the support column 6 and the mounting plate 9 for controlling the sliding of the first sliding plate 7 and the second sliding plate 11.

[0025] Overall working principle: When in use, push the device to the side of the machine tool, and use the positioning mechanism 3 to fix the position of the device. Then start the rotary motor 10 to control the rotation of the mounting plate 9, extend the measuring device body 12 from the inside of the storage groove 4, and control the L-shaped cover 5 to unfold outward. After the mounting plate 9 is perpendicular to the horizontal plane, use the lifting component to control the vertical movement of the first sliding plate 7 and the second sliding plate 11 to change the height of the measuring device body 12. Then use the measuring device body 12 for measurement. The working principle of the measuring device body 12 is prior art. Refer to the patent with the publication number CN104625880B in the comparative document, which can measure the spatial position error and attitude error of the tool point. Therefore, this application will not elaborate.

[0026] In this embodiment, magnet blocks are provided on the outer sides of both ends of the L-shaped cover 5, and metal sheets cooperating with the magnet blocks are provided at the tops of both sides of the storage groove 4.

[0027] Local working principle: During the rotation process of controlling the mounting plate 9, when folding the measuring device body, the L-shaped cover 5 can be controlled to shield and protect the storage groove 4. When the device is in use, the L-shaped cover 5 can be automatically unfolded outward. In addition, the cooperation between the magnet block and the metal sheet increases the stability of the L-shaped cover 5.

[0028] In this embodiment, a push handle is installed at the top of the outer side of the support column 6, and an anti-slip sleeve is provided on the push handle.

[0029] Local working principle: Through the use of the push handle, the movement of the device is made more convenient.

[0030] In this embodiment, the lifting assembly includes a guide groove 13, a lifting motor 14, and a screw rod 15. The guide groove 13 is vertically opened on the sides of the support column 6 and the mounting plate 9. A screw rod 15 is rotatably installed between the upper and lower ends of the guide groove 13. The bottom end of the screw rod 15 is provided with a lifting motor 14, and the output shaft of the lifting motor 14 is connected to the screw rod 15. The first sliding plate 7 and the second sliding plate 11 are both threadedly connected to the screw rod 15.

[0031] Local working principle: When adjusting the height of the measuring device body 12, start the lifting motor 14 to drive the screw rod 15 to rotate. The rotation of the screw rod 15 will drive the first sliding plate 7 and the second sliding plate 11 to slide, thereby controlling the displacement of the measuring device body 12.

[0032] In this embodiment, the positioning mechanism 3 includes a rectangular sleeve 16, an L-shaped plate 17, a return spring 18, and a locking member. The rectangular sleeve 16 is fixed to the outside of the base 1. An L-shaped plate 17 is slidably installed inside the rectangular sleeve 16. A return spring 18 is installed between the top of the L-shaped plate 17 and the inner top of the rectangular sleeve 16. A locking member for fixing the L-shaped plate 17 is provided at the bottom of the outside of the rectangular sleeve 16.

[0033] Local working principle: After moving the device to the designated position, step on the L-shaped plate 17 downward. The bottom of the L-shaped plate 17 contacts the ground, and the position of the L-shaped plate 17 is positioned by using the locking member, thereby fixing the position of the device.

[0034] In this embodiment, the locking member includes a mounting groove 19, a plug 20, a compression spring 21, a slot 22, and a pull rod 23. A mounting groove 19 is opened at the bottom of the outside of the rectangular sleeve 16. A plug 20 is slidably installed inside the mounting groove 19. The shape of the plug 20 is a right trapezoid. A slot 22 matching the plug 20 is opened on the L-shaped plate 17. A compression spring 21 is installed between the plug 20 and the inner end of the mounting groove 19. A pull rod 23 is fixed to one end of the plug 20 close to the compression spring 21, and the pull rod 23 extends to the outside of the rectangular sleeve 16.

[0035] Local working principle: When the L-shaped plate 17 slides downward, it will directly squeeze the plug 20 into the mounting groove 19. After the plug 20 is aligned with the slot 22, the compression spring 21 pushes the plug 20 into the slot 22, effectively preventing the L-shaped plate 17 from moving upward and ensuring the stability of the L-shaped plate 17. When releasing the fixed state of the L-shaped plate 17, pull the pull rod 23 outward, and the plug 20 is pulled out from the inside of the slot 22. Under the elastic force of the return spring 18, the L-shaped plate 17 automatically moves upward and resets.

[0036] In this embodiment, an anti-slip pad is provided at the bottom of the L-shaped plate 17, and anti-slip patterns are provided at the bottom of the anti-slip pad.

[0037] Local working principle: The use of the anti-slip pad increases the friction between the L-shaped plate 17 and the ground, resulting in higher stability.

[0038] The above are only further embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the scope disclosed by the present utility model, according to the technical solution and its concept of the present utility model, makes equivalent substitutions or changes, all belong to the protection scope of the present utility model.

Claims

1. A measuring device for the spatial position error and attitude error of a cutting tool, comprising a base (1), characterized in that: Universal wheels (2) are evenly installed at the bottom of the base (1). Positioning mechanisms (3) are provided on both sides of the base (1). A storage groove (4) is opened at one end of the top of the base (1). The bottom end of the storage groove (4) is hingedly installed with an L-shaped cover (5). A support column (6) is vertically installed at the end of the top of the base (1) away from the storage groove (4). A first sliding plate (7) is vertically slidably installed on the side of the support column (6) close to the storage groove (4). Fixed blocks (8) are symmetrically installed on the outer side of the first sliding plate (7). An installation plate (9) is rotatably installed between the two groups of fixed blocks (8). A rotating motor (10) for controlling the rotation of the installation plate (9) is installed on the outer side of the fixed block (8). A second sliding plate (11) is slidably arranged along the length direction on the inner side of the installation plate (9). A measuring device body (12) is installed on the second sliding plate (11). Lifting components are provided on both the support column (6) and the installation plate (9) for controlling the sliding of the first sliding plate (7) and the second sliding plate (11).

2. The measuring device for the spatial position error and attitude error of the tool tip according to claim 1, wherein: Magnet blocks are provided on the outer sides of both ends of the L-shaped cover (5). Metal sheets cooperating with the magnet blocks are provided at the top ends of both sides of the storage groove (4).

3. A measuring device for the spatial position error and attitude error of a tool point according to claim 1, characterized in that: A push handle is installed at the top of the outer side of the support column (6), and an anti-slip sleeve is provided on the push handle.

4. A measuring device for the spatial position error and attitude error of a tool point according to claim 1, characterized in that: The lifting component includes a guide groove (13), a lifting motor (14) and a screw rod (15). The guide groove (13) is vertically opened on the side edges of the support column (6) and the installation plate (9). A screw rod (15) is rotatably installed between the upper and lower ends of the guide groove (13). A lifting motor (14) is provided at the bottom end of the screw rod (15), and the output shaft of the lifting motor (14) is connected to the screw rod (15). Both the first sliding plate (7) and the second sliding plate (11) are threadedly connected to the screw rod (15).

5. A measuring device for the spatial position error and attitude error of a tool tip according to any one of claims 1-4, characterized in that: The positioning mechanism (3) includes a rectangular sleeve (16), an L-shaped plate (17), a return spring (18) and a locking member. The rectangular sleeve (16) is fixed on the outer side of the base (1). An L-shaped plate (17) is slidably arranged inside the rectangular sleeve (16). A return spring (18) is installed between the top of the L-shaped plate (17) and the inner top of the rectangular sleeve (16). A locking member for fixing the L-shaped plate (17) is provided at the bottom of the outer side of the rectangular sleeve (16).

6. The measuring device for the spatial position error and attitude error of a tool point according to claim 5, characterized in that: The locking member includes an installation groove (19), a plug block (20), a compression spring (21), a slot (22) and a pull rod (23). An installation groove (19) is opened at the bottom of the outer side of the rectangular sleeve (16). A plug block (20) is slidably installed inside the installation groove (19). The shape of the plug block (20) is a right trapezoid. A slot (22) cooperating with the plug block (20) is opened on the L-shaped plate (17). A compression spring (21) is installed between the plug block (20) and the inner end of the installation groove (19). A pull rod (23) is fixed at the end of the plug block (20) close to the compression spring (21), and the pull rod (23) extends to the outside of the rectangular sleeve (16).

7. A measuring device for the spatial position error and attitude error of a tool tip according to claim 5, characterized in that: An anti-slip pad is provided at the bottom of the L-shaped plate (17), and anti-slip lines are provided at the bottom of the anti-slip pad.

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