Three-dimensional measuring jig

Abstract

The utility model relates to the technical field of measuring jigs, in particular to a three-dimensional measuring jig which comprises a jig working table, a jig shell is installed at the bottom end of the jig working table, a limiting and fixing device is arranged in the jig shell, auxiliary devices are arranged on the two sides of the top end of the limiting and fixing device, and the auxiliary devices are arranged on the jig working table. A limiting block is arranged on the outer wall of the limiting and fixing device, the outer wall of the limiting block is in sliding connection with the moving groove, and the outer wall of the moving groove is fixedly connected with the jig workbench. Through cooperation of a U-shaped plate, a reset spring, an L-shaped moving plate and fixing plates, the L-shaped moving plate is pushed towards the middle at the moment, the L-shaped moving plate drives the fixing plates to move, after the fixing plates on the two sides are attached to the outer wall of a part, the U-shaped plate is loosened, the reset spring rebounds at the moment, a helical tooth plate is pushed to move upwards, and the helical tooth plate is tightly attached to the L-shaped moving plate again; therefore, movement of the L-shaped moving plate is limited, the part cannot shake even if the part is subjected to external force, and fixing is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring jigs, in particular to a three-dimensional measuring jig. Background Art

[0002] A measuring jig is a jig used to fix the completed parts for easy measurement, and a three-dimensional measuring jig is a jig that fixes the X-axis, Y-axis, and Z-axis of the part.

[0003] For example, the authorization announcement number CN212482425U is a three-dimensional measurement jig for metal product forming CASE. Although the above document can facilitate the all-round fixation of objects and is beneficial to the use of items, and is provided with a bottom plate to facilitate the fixation of the jig and ensure the stable placement of the jig, when the metal product forming CASE three-dimensional measurement jig in the above document is used, the items are fixed by moving the splint. However, after the fixation is completed, since the splint has no limiting structure and the friction between the splint and the jig body is limited, when the item vibrates or is subjected to external force, the item will shake and move, resulting in the problem of unstable fixation. Utility Model Content

[0004] The purpose of the utility model is to solve the problem of the three-dimensional measuring jig for metal product forming CASE in the above-mentioned document. After the fixation is completed, since the splint has no limiting structure and the friction between the splint and the jig body is limited, when the object vibrates or is subjected to external force, the object will shake and move, resulting in the problem of insufficient stability of fixation. Therefore, a three-dimensional measuring jig is proposed.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A three-dimensional measurement jig is designed, comprising a jig workbench, a jig shell is installed at the bottom end of the jig workbench, a limit fixing device is arranged inside the jig shell, auxiliary devices are arranged on both sides of the top of the limit fixing device, a limit block is arranged on the outer wall of the limit fixing device, the outer wall of the limit block is slidably connected to a movable groove, and the outer wall of the movable groove is fixedly connected to the jig workbench.

[0007] Preferably, the limiting fixing device includes a U-shaped plate, the outer wall of the U-shaped plate is slidably connected to the fixture housing through a sliding groove, the rear end of the U-shaped plate is fixedly connected with a beveled tooth plate, the bottom end of the beveled tooth plate is fixedly connected to the top end of a return spring, the bottom end of the return spring is fixedly connected to the fixture housing, the two sides of the top end of the beveled tooth plate are tightly fitted with two L-shaped movable plates, and the top end of the L-shaped movable plate is fixedly connected with a fixed plate.

[0008] Preferably, an auxiliary device is provided above the outer wall of the L-shaped movable plate, and the outer wall of the fixed plate is rotatably connected to a plurality of hand wheels via bearings.

[0009] Preferably, the rear ends of the plurality of hand wheels are fixedly connected with double-headed threaded rods, and the outer walls of the double-headed threaded rods are threadedly connected with nuts.

[0010] Preferably, the outer wall of the nut is slidably connected to the fixing plate via a sliding groove, and a fixing block is fixedly connected to one end of the nut.

[0011] Preferably, the auxiliary device comprises an electric push rod, the bottom end of the electric push rod is fixedly connected to the L-shaped movable plate, and the output end of the electric push rod is fixedly connected to a pressure plate.

[0012] The three-dimensional measuring fixture proposed by the utility model has the beneficial effects that: through the cooperation among the U-shaped plate, the bevel tooth plate, the reset spring, the L-shaped movable plate and the fixed plate, the U-shaped plate is pulled downward, the U-shaped plate drives the bevel tooth plate to move, so that the bevel tooth plate is separated from the L-shaped movable plate, and the reset spring is compressed, at this time the L-shaped movable plate is pushed toward the middle, the L-shaped movable plate drives the fixed plate to move, after the fixed plates on both sides are fitted to the outer wall of the part, the U-shaped plate is released, at this time the reset spring rebounds, pushes the bevel tooth plate to move upward, so that the bevel tooth plate is closely fitted with the L-shaped movable plate again, thereby limiting the movement of the L-shaped movable plate, so that the part will not shake even if it is subjected to external force, and the fixation is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 for Figure 1 Schematic diagram of the main plan view of the internal connection structure;

[0015] Figure 3 for Figure 1 A top view of the internal connection structure;

[0016] Figure 4 for Figure 2 Schematic diagram of the connection structure at A in the middle.

[0017] In the figure: 1. fixture workbench, 2. fixture housing, 3. limit block, 4. limit fixing device, 401. U-shaped plate, 402. bevel tooth plate, 403. return spring, 404. L-shaped moving plate, 405. fixed plate, 4A1. vertical rod, 5. auxiliary device, 501. electric push rod, 502. pressure plate, 6. double-headed threaded rod, 7. nut, 8. fixed block, 9. moving groove, 10. hand wheel. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] Embodiment 1:

[0020] See also Figure 1-4 In this embodiment: a three-dimensional measurement fixture includes a fixture workbench 1, a fixture shell 2 is installed at the bottom end of the fixture workbench 1, a limit fixture 4 for fixing the X-axis of the part is arranged inside the fixture shell 2, auxiliary devices 5 are arranged on both sides of the top of the limit fixture 4, and a limit block 3 is arranged on the outer wall of the limit fixture 4. The limit block 3 is used to limit the moving direction of the L-shaped moving plate 404. The outer wall of the limit block 3 is slidably connected with the moving groove 9, and the moving groove 9 is used to limit the movement of the limit block 3. The outer wall of the moving groove 9 is fixedly connected to the fixture workbench 1.

[0021] The limiting fixing device 4 includes a U-shaped plate 401, a beveled tooth plate 402, a reset spring 403, an L-shaped movable plate 404 and a fixed plate 405. The outer wall of the U-shaped plate 401 is slidably connected to the fixture housing 2 through a slide groove. The rear end of the U-shaped plate 401 is fixedly connected to the beveled tooth plate 402. The U-shaped plate 401 drives the beveled tooth plate 402 to move up and down. The bottom end of the beveled tooth plate 402 is fixedly connected to the top end of the reset spring 403. When the beveled tooth plate 402 moves downward, it will The reset spring 403 is compressed, the bottom end of the reset spring 403 is fixedly connected to the fixture housing 2, the elastic coefficient of the reset spring 403 is 30-50N / cm, the top sides of the beveled tooth plate 402 are tightly fitted with two L-shaped movable plates 404, the beveled tooth plate 402 uses the upper bevel teeth to limit the L-shaped movable plate 404, the top of the L-shaped movable plate 404 is fixedly connected with a fixed plate 405, and the L-shaped movable plate 404 drives the fixed plate 405 to move;

[0022] Pull the U-shaped plate 401 downward, the U-shaped plate 401 drives the bevel toothed plate 402 to move, so that the bevel toothed plate 402 is separated from the L-shaped movable plate 404 and the return spring 403 is compressed. At this time, the L-shaped movable plate 404 is pushed toward the middle, and the L-shaped movable plate 404 drives the fixed plate 405 to move. After the fixed plates 405 on both sides are in contact with the outer wall of the part, the U-shaped plate 401 is released. At this time, the return spring 403 rebounds and drives the bevel toothed plate 402 to move upward, so that the bevel toothed plate 402 is in close contact with the L-shaped movable plate 404 again, thereby limiting the movement of the L-shaped movable plate 404, so that the part will not shake even if it is subjected to external force, and the fixation is more stable.

[0023] An auxiliary device 5 is arranged above the outer wall of the L-shaped movable plate 404, and the outer wall of the fixed plate 405 is rotatably connected to multiple hand wheels 10 through bearings. The rear ends of the multiple hand wheels 10 are fixedly connected to double-headed threaded rods 6. When the handwheels 10 rotate, the double-headed threaded rods 6 are driven to rotate. The outer wall of the double-headed threaded rods 6 is threadedly connected to the nuts 7. Since the thread directions on both sides of the double-headed threaded rods 6 are opposite, the two nuts 7 move relative to each other. The outer wall of the nuts 7 is slidably connected to the fixed plate 405 through a slide groove, and one end of the nut 7 is fixedly connected to a fixed block 8, and the nut 7 drives the fixed block 8 to move.

[0024] The auxiliary device 5 includes an electric push rod 501 and a pressure plate 502. The bottom end of the electric push rod 501 is fixedly connected to the L-shaped movable plate 404. The model of the electric push rod 501 is selected according to actual use requirements and can meet work requirements. The output end of the electric push rod 501 is fixedly connected to the pressure plate 502, and the output end of the electric push rod 501 pushes the pressure plate 502 to move up and down.

[0025] Working principle:

[0026] When the three-dimensional measuring jig is in use, first, the user places the part on the jig workbench 1, then pulls the U-shaped plate 401 downward, the U-shaped plate 401 drives the bevel plate 402 to move, so that the bevel plate 402 is separated from the L-shaped movable plate 404, and the reset spring 403 is compressed, at this time, the L-shaped movable plate 404 is pushed toward the middle, the L-shaped movable plate 404 drives the fixed plate 405 to move, after the fixed plates 405 on both sides are attached to the outer wall of the part, the U-shaped plate 401 is released, at this time the reset spring 403 rebounds, pushing the bevel plate 402 to move upward, so that the bevel plate 402 is again separated from the L-shaped movable plate The plate 404 fits tightly, thereby limiting the movement of the L-shaped movable plate 404, so that the part will not shake even when subjected to external force, and the fixation is more stable. Then, the hand wheel 10 is turned, and the hand wheel 10 drives the double-headed threaded rod 6 to rotate. The double-headed threaded rod 6 causes the two nuts 7 to move toward the middle at the same time, and the nuts 7 drive the fixed blocks 8 to move. The two fixed blocks 8 limit the Z-axis direction of the part. Finally, the electric push rod 501 is adjusted so that the output end of the electric push rod 501 drives the pressure plate 502 to move downward, and the pressure plate 502 cooperates with the fixture workbench 1 to limit the Y-axis direction of the part, completing the use of this fixture.

[0027] Embodiment 2:

[0028] See also Figure 1-4 In this embodiment: a three-dimensional measuring fixture, wherein the limiting fixing device 4 may also include a vertical rod 4A1, the outer wall of the vertical rod 4A1 is slidably connected to the bevel tooth plate 402 through a slide groove, the vertical rod 4A1 is used to limit the moving direction of the bevel tooth plate 402, the bottom end of the vertical rod 4A1 is fixedly connected to the fixture housing 2, and the top end of the vertical rod 4A1 is fixedly connected to the fixture workbench 1.

[0029] Working principle:

[0030] When this embodiment is working, the user installs the vertical rod 4A1 on the outer wall of the bevel plate 402 so that the bevel plate 402 can move under the restriction of the vertical rod 4A1, thereby making the movement of the bevel plate 402 more stable and completing the use of this device.

[0031] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A three-dimensional measurement jig, comprising a jig workbench (1), characterized in that: A jig shell (2) is installed at the bottom end of the jig workbench (1), a limit fixing device (4) is arranged inside the jig shell (2), auxiliary devices (5) are arranged on both sides of the top of the limit fixing device (4), and a limit block (3) is arranged on the outer wall of the limit fixing device (4), the outer wall of the limit block (3) is slidably connected to the movable groove (9), and the outer wall of the movable groove (9) is fixedly connected to the jig workbench (1).

2. A three-dimensional measurement jig according to claim 1, characterized in that: The limiting fixing device (4) comprises a U-shaped plate (401), the outer wall of the U-shaped plate (401) is slidably connected to the fixture housing (2) via a sliding groove, the rear end of the U-shaped plate (401) is fixedly connected to a beveled tooth plate (402), the bottom end of the beveled tooth plate (402) is fixedly connected to the top end of a return spring (403), the bottom end of the return spring (403) is fixedly connected to the fixture housing (2), the top sides of the beveled tooth plate (402) are tightly fitted with two L-shaped movable plates (404), and the top end of the L-shaped movable plate (404) is fixedly connected to a fixed plate (405).

3. A three-dimensional measurement jig according to claim 2, characterized in that: An auxiliary device (5) is arranged above the outer wall of the L-shaped movable plate (404), and the outer wall of the fixed plate (405) is rotatably connected to a plurality of hand wheels (10) via bearings.

4. A three-dimensional measurement jig according to claim 3, characterized in that: The rear ends of the plurality of hand wheels (10) are all fixedly connected with a double-headed threaded rod (6), and the outer wall of the double-headed threaded rod (6) is threadedly connected to a nut (7).

5. A three-dimensional measurement jig according to claim 4, characterized in that: The outer wall of the nut (7) is slidably connected to the fixing plate 405 via a sliding groove, and a fixing block (8) is fixedly connected to one end of the nut (7).

6. The three-dimensional measurement jig according to claim 1, characterized in that: The auxiliary device (5) comprises an electric push rod (501), the bottom end of the electric push rod (501) is fixedly connected to the L-shaped moving plate 404, and the output end of the electric push rod (501) is fixedly connected to a pressing plate (502).

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