Tool for three-coordinate flatness detection

Abstract

The utility model discloses a tool for three-coordinate flatness detection, which relates to the technical field of measuring and clamping, and comprises a base, a workbench and two pairs of connecting rods, the upper surface of the workbench is provided with a chute, a bidirectional screw rod is rotatably arranged in the chute, a pair of sliding blocks is arranged in the chute, baffles are fixedly arranged on the sliding blocks, and the two pairs of connecting rods are arranged on the two sides of the chute. Circular rings are rotationally arranged on the opposite sides of the baffles, a pair of clamping arms is rotationally arranged on each circular ring, a pair of connecting rods is rotationally arranged on each clamping arm, the connecting rods are rotationally connected with the connecting rods, and clamping plates are rotationally arranged at one ends of the clamping arms. By additionally arranging the clamping arms, the connecting rods, the connecting rods and the clamping plates, clamping of a workpiece becomes simple and convenient, by additionally arranging a second motor and a circular ring, the device can turn over an object to be detected, the object does not need to be manually disassembled and turned over again and then fixed, the detection efficiency is high, and the sliding rod and the lifting screw are matched for work, so that the detection precision is improved. And the height of the workbench can be quickly adjusted according to the height of an operator.

Description

Technical Field

[0001] The utility model relates to the field of measurement and clamping, in particular to a tooling for three-coordinate flatness detection. Background Art

[0002] Three-coordinate measurement is a precise measurement method for inspecting workpieces. It is widely used in modern industries such as machinery manufacturing and automobile industry. Three-coordinate measurement is to use a three-coordinate measuring machine to inspect and measure the shape and position tolerance of the workpiece. It determines whether the error of the workpiece is within the tolerance range. It is also called three-coordinate measurement. In the existing three-coordinate detection technology, it is often necessary to use it with corresponding tooling.

[0003] When three-coordinate flatness detection is performed, the workpiece needs to be clamped and fixed. The existing clamping methods are relatively complicated. In addition, it is often necessary to detect two or even more sides. The existing tooling structure is fixed and cannot turn the object under test over. It needs to be manually disassembled, turned over, and then fixed, resulting in low detection efficiency. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art that the object to be measured cannot be reversed and the height is not easy to adjust, and proposes a tool for three-coordinate flatness detection.

[0005] In order to solve the problems existing in the prior art, the utility model adopts the following technical solutions:

[0006] The cam is provided with a pair of clamping arms, and the clamping arms are provided with a pair of connecting rods, and the connecting rods are rotatably connected to the first and second motor output shafts.

[0007] Preferably, a lifting screw is rotatably provided at the lower end of the workbench, the lifting screw is threadedly connected to the base, a sliding rod is slidably provided inside the lifting screw, a first bevel gear is fixedly provided at the lower end of the sliding rod, a transmission rod is rotatably provided inside the base, a second bevel gear is fixedly provided at one end of the transmission rod, the first bevel gear is meshed with the second bevel gear, and a handle is fixedly provided at the other end of the transmission rod.

[0008] Preferably, two pairs of adjusting screws are threadedly provided at the lower end of the base, a disc is fixedly provided at the lower end of each adjusting screw, and an anti-slip rubber pad is fixedly provided at the lower end of each disc.

[0009] Preferably, the guide rods are all in contact with the inner wall of the circular hole on the base, and two pairs of the guide rods are located at the four corners of the workbench.

[0010] Preferably, the sliders are all fitted with the inner wall of the slide groove, the bidirectional screw passes through a pair of sliders, and the baffles are all fitted with the upper surface of the workbench.

[0011] Preferably, the first motor and the second motor are both servo motors, and the output shaft of the second motor passes through the corresponding baffle.

[0012] Preferably, the slide rod passes through the lifting screw rod, and a pair of limit strips are provided on the outer side of the slide rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, by adding a clamping arm, a connecting rod, a connecting rod and a clamping plate, the clamping of the workpiece becomes simple and convenient, and the working efficiency becomes high. By adding a second motor, the device can turn over the object to be tested, and there is no need to manually disassemble and turn over and then fix it. The detection efficiency is high, which meets people's practical needs.

[0015] 2. In the present invention, the cooperation of the slide rod and the lifting screw allows the height of the workbench to be quickly adjusted according to the height of the operator, which greatly improves the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the positional relationship of the bidirectional screw, the slider and the baffle of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the base of the utility model;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the lifting screw rod and the sliding rod of the utility model;

[0021] Figure 5 For the utility model Figure 2 Enlarged schematic diagram at point A in the middle.

[0022] Serial numbers in the figure: 1. base; 11. workbench; 111. guide rod; 112. first motor; 12. slide groove; 121. bidirectional screw; 122. slider; 123. baffle; 13. second motor; 14. ring; 141. clamping arm; 142. connecting rod; 143. connecting rod; 144. clamping plate; 2. lifting screw; 21. sliding rod; 22. first bevel gear; 23. transmission rod; 24. second bevel gear; 25. handle; 3. adjusting screw; 31. disc. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Embodiment 1: This embodiment provides a tool for three-coordinate flatness detection, see Figure 1-5 Specifically, it includes a base 1, a workbench 11 and two pairs of connecting rods 143. Two pairs of guide rods 111 are fixedly arranged on the lower surface of the workbench 11. A round hole corresponding to the guide rods 111 is opened on the upper end of the base 1. A first motor 112 is fixedly arranged on one side of the workbench 11. A slide groove 12 is opened on the upper surface of the workbench 11. A bidirectional screw 121 is rotatably arranged in the slide groove 12. One end of the bidirectional screw 121 is fixedly connected to the output shaft of the first motor 112. A pair of sliders 122 are slidably arranged in the slide groove 12. The pair of sliders 122 are both connected to the bidirectional screw 12 1 threaded connection, a baffle 123 is fixedly provided on the slider 122, a second motor 13 is fixedly provided on one side of a baffle 123, a ring 14 is rotatably provided on one side of the opposite side of the baffle 123, one side of a pair of rings 14 is open and the other side is closed, one ring 14 is fixedly connected to the output shaft of the second motor 13, a pair of clamping arms 141 are rotatably provided on the ring 14, a pair of connecting rods 142 are rotatably provided on the clamping arms 141, the connecting rods 143 are rotatably connected to the connecting rods 142, and a clamping plate 144 is rotatably provided on one end of the clamping arms 141;

[0025] The guide rods 111 are all fitted with the inner walls of the circular holes on the base 1, two pairs of guide rods 111 are located at the four corners of the workbench 11, the sliders 122 are all fitted with the inner walls of the slide groove 12, the bidirectional screw 121 passes through a pair of sliders 122, the baffles 123 are all fitted with the upper surface of the workbench 11, the first motor 112 and the second motor 13 are both servo motors, and the output shaft of the second motor 13 passes through the corresponding baffles 123.

[0026] In the specific implementation process, Figure 2 and Figure 5 As shown, the object to be tested is placed between the two pairs of clamping plates 144, the first motor 112 drives the bidirectional screw 121 to rotate, the bidirectional screw 121 drives a pair of sliders 122 to slide in the slide groove 12, and the pair of sliders 122 drives a pair of baffles 123 to move toward the middle. When the object to be tested contacts the two pairs of connecting rods 143, the object to be tested pushes the two pairs of connecting rods 143 to move outward, and the two pairs of connecting rods 143 rotate the two pairs of clamping arms 141 into the ring 14 through multiple pairs of connecting rods 142. The clamping plates 144 clamp the object to be tested toward the middle under the action of the clamping arms 141. After one side of the object to be tested is detected, the second motor 13 drives one ring 14 to rotate, and one ring 14 drives another ring 14 to rotate through the object to be tested in the middle of the clamping plates 144, completing the reverse side and continuing the detection.

[0027] It should be noted that: in this embodiment, when the object to be tested contacts the two pairs of connecting rods 143, the object to be tested pushes the two pairs of connecting rods 143 to move outward, and the two pairs of connecting rods 143 rotate the two pairs of clamping arms 141 into the ring 14 through multiple pairs of connecting rods 142. The clamping plates 144 clamp the object to be tested in the middle under the action of the clamping arms 141.

[0028] Embodiment 2: In embodiment 1, there is still the problem that the height is difficult to adjust. Therefore, based on embodiment 1, this embodiment further includes:

[0029] In the specific implementation process, Figure 3 and Figure 4 As shown, a lifting screw 2 is rotatably provided at the lower end of the workbench 11, and the lifting screw 2 is threadedly connected to the base 1. A slide bar 21 is slidably provided in the lifting screw 2, and a first bevel gear 22 is fixedly provided at the lower end of the slide bar 21. A transmission rod 23 is rotatably provided in the base 1, and a second bevel gear 24 is fixedly provided at one end of the transmission rod 23. The first bevel gear 22 is meshed with the second bevel gear 24, and a handle 25 is fixedly provided at the other end of the transmission rod 23. The slide bar 21 passes through the lifting screw 2, and a pair of limit strips are provided on the outer side of the slide bar 21.

[0030] Turn the handle 25, the handle 25 drives the second bevel gear 24 to rotate through the transmission rod 23, the second bevel gear 24 drives the first bevel gear 22 to rotate, the first bevel gear 22 drives the slide bar 21 to rotate, the slide bar 21 drives the lifting screw 2 to rotate, and the lifting screw 2 drives the workbench 11 to move up and down.

[0031] In the specific implementation process, Figure 3 As shown, two pairs of adjusting screws 3 are threadedly provided at the lower end of the base 1, and a disc 31 is fixedly provided at the lower end of the adjusting screw 3. An anti-slip rubber pad is fixedly provided at the lower end of the disc 31. When the device is placed in an uneven area, each adjusting screw 3 can be adjusted individually to achieve leveling, thereby ensuring stable operation of the device.

[0032] Specifically, the working principle and operation method of the utility model are as follows:

[0033] Step 1: When the device is placed in a non-flat area, each adjusting screw 3 can be adjusted individually to ensure stable operation of the device;

[0034] Step 2: Turn the handle 25, the handle 25 drives the second bevel gear 24 to rotate through the transmission rod 23, the second bevel gear 24 drives the first bevel gear 22 to rotate, the first bevel gear 22 drives the slide bar 21 to rotate, the slide bar 21 drives the lifting screw 2 to rotate, and the lifting screw 2 drives the workbench 11 to move up and down;

[0035] Step 3: Place the object to be tested between the two pairs of clamping plates 144. The first motor 112 drives the bidirectional screw 121 to rotate. The bidirectional screw 121 drives a pair of sliders 122 to slide in the slide slot 12. The pair of sliders 122 drives a pair of baffles 123 to move toward the middle. When the object to be tested contacts the two pairs of connecting rods 143, the object to be tested pushes the two pairs of connecting rods 143 to move outward. The two pairs of connecting rods 143 rotate the two pairs of clamping arms 141 into the ring 14 through multiple pairs of connecting rods 142. The clamping plates 144 clamp the object to be tested toward the middle under the action of the clamping arms 141.

[0036] Step 4: After one side of the object to be tested is tested, the second motor 13 drives one ring 14 to rotate, and one ring 14 drives another ring 14 to rotate through the object to be tested in the middle of the clamping plate 144, completing the reverse side and continuing the test;

[0037] The utility model makes it simple and convenient to clamp the workpiece by adding a clamping arm 141, a connecting rod 142, a connecting rod 143 and a clamping plate 144, and the working efficiency is improved. By adding a second motor 13 and a ring 14, the device can turn over the object to be tested without the need for manual disassembly and re-fixation after turning over, and the detection efficiency is high. The cooperation of the sliding rod 21 and the lifting screw 2 allows the height of the workbench 11 to be quickly adjusted according to the height of the operator.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tool for three-coordinate flatness detection, comprising a base (1), a workbench (11) and two pairs of connecting rods (143), characterized in that: Two pairs of guide rods (111) are fixedly provided on the lower surface of the workbench (11); a circular hole corresponding to the guide rods (111) is opened on the upper end of the base (1); a first motor (112) is fixedly provided on one side of the workbench (11); a slide groove (12) is opened on the upper surface of the workbench (11); a bidirectional screw (121) is rotatably provided in the slide groove (12); one end of the bidirectional screw (121) is fixedly connected to the output shaft of the first motor (112); a pair of sliders (122) are slidably provided in the slide groove (12); the pair of sliders (122) are both threadedly connected to the bidirectional screw (121); the sliders (122) A baffle (123) is fixedly provided on each of the baffles (123); a second motor (13) is fixedly provided on one side of the baffle (123); a circular ring (14) is rotatably provided on one side of the opposite side of the baffle (123); one side of a pair of circular rings (14) is open and the other side is closed; one of the circular rings (14) is fixedly connected to the output shaft of the second motor (13); a pair of clamping arms (141) is rotatably provided on each of the circular rings (14); a pair of connecting rods (142) is rotatably provided on each of the clamping arms (141); the connecting rods (143) are rotatably connected to the connecting rods (142); and a clamping plate (144) is rotatably provided on one end of each of the clamping arms (141).

2. The tooling for three-coordinate flatness detection according to claim 1, characterized in that: A lifting screw (2) is rotatably provided at the lower end of the workbench (11), the lifting screw (2) is threadedly connected to the base (1), a slide bar (21) is slidably provided inside the lifting screw (2), a first bevel gear (22) is fixedly provided at the lower end of the slide bar (21), a transmission rod (23) is rotatably provided inside the base (1), a second bevel gear (24) is fixedly provided at one end of the transmission rod (23), the first bevel gear (22) is meshed with the second bevel gear (24), and a handle (25) is fixedly provided at the other end of the transmission rod (23).

3. The tooling for three-coordinate flatness detection according to claim 1, characterized in that: Two pairs of adjusting screws (3) are threadedly provided at the lower end of the base (1), a disc (31) is fixedly provided at the lower end of each adjusting screw (3), and an anti-slip rubber pad is fixedly provided at the lower end of each disc (31).

4. The tooling for three-coordinate flatness detection according to claim 1, characterized in that: The guide rods (111) are both fitted with the inner wall of the circular hole on the base (1), and two pairs of the guide rods (111) are located at the four corners of the workbench (11).

5. The tooling for three-coordinate flatness detection according to claim 1, characterized in that: The sliders (122) are both fitted with the inner wall of the slide groove (12), the bidirectional screw (121) passes through a pair of sliders (122), and the baffles (123) are both fitted with the upper surface of the workbench (11).

6. The tooling for three-coordinate flatness detection according to claim 1, characterized in that: The first motor (112) and the second motor (13) are both servo motors, and the output shaft of the second motor (13) passes through the corresponding baffle (123).

7. The tooling for three-coordinate flatness detection according to claim 2, characterized in that: The sliding rod (21) passes through the lifting screw rod (2), and a pair of limit strips are provided on the outer side of the sliding rod (21).

Images