Clamping mechanism and testing device

Abstract

The utility model belongs to the field of testing equipment, and particularly relates to a clamping mechanism and a testing device. The clamping mechanism is used for transferring materials from the material taking station to a target station, the clamping mechanism comprises a mechanical arm and a clamping assembly arranged on the mechanical arm, the clamping assembly is used for clamping the materials, and the mechanical arm is used for driving the clamping assembly to move in a three-dimensional space; the clamping assembly comprises a bottom plate connected to the mechanical arm, a driving assembly arranged on the bottom plate, two clamping pieces arranged on the bottom plate in a sliding mode and a sensing element arranged on the bottom plate, the two clamping pieces are arranged in a spaced mode, the clamping pieces are connected with the output end of the driving assembly, and the sensing element is used for detecting whether materials to be clamped exist on the material taking station or not; the driving assembly is used for driving the two clamping pieces to move oppositely according to the induction signals so as to clamp materials. According to the utility model, the material moving accuracy and the production efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of testing device, especially related to clamping mechanism and testing device. BACKGROUND

[0002] The noise of the sunroof during operation has a direct impact on the user experience of the automobile, and the noise of the sunroof may come from the noise of the sunroof motor operation or the noise generated by the sunroof mechanical group operation, so it is usually necessary to detect the various sound quality parameters of the noise of the sunroof during operation by a testing device, so as to judge whether the sunroof product is qualified.

[0003] When the testing device detects the noise of the sunroof, it is usually necessary to set up a grabbing device to grab the sunroof product and make the sunroof product dock with the testing device for testing. However, the current grabbing device has limited moving precision, so it cannot accurately dock the sunroof product with the testing device; and the current grabbing device needs to manually judge whether the material to be grabbed exists, and then operate the grabbing device to perform the grabbing action, which has low automation degree and affects the production efficiency. UTILITY MODEL CONTENT

[0004] The purpose of the embodiment of the present application is to provide a clamping mechanism, which aims to solve the problem of how to improve the accuracy of material movement and production efficiency.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is:

[0006] In a first aspect, a clamping mechanism is provided for transferring a material from a material taking station to a target station, the clamping mechanism comprising a mechanical arm and a clamping assembly provided on the mechanical arm, the clamping assembly being used to clamp the material, and the mechanical arm being used to drive the clamping assembly to move in a three-dimensional space.

[0007] The clamping assembly comprises a bottom plate connected to the mechanical arm, a driving assembly provided on the bottom plate, two clamping pieces slidingly provided on the bottom plate, and a sensing element provided on the bottom plate, the two clamping pieces being spaced apart, the clamping pieces being connected to the output end of the driving assembly, the sensing element being used to detect whether the material to be clamped exists on the material taking station and generate a sensing signal, and the driving assembly being used to drive the two clamping pieces to move towards each other according to the sensing signal to clamp the material.

[0008] In some embodiments, the driving assembly comprises two driving pieces, and the two clamping pieces are respectively connected to the output ends of the two driving pieces, and the driving pieces drive the clamping pieces to move in a first direction.

[0009] In some embodiments, the driving member and the clamping member are arranged on two opposite plate surfaces of the bottom plate respectively, the clamping assembly further comprises a connecting member connecting the output end of the driving member and the clamping member, and the bottom plate is provided with a sliding hole through which the connecting member passes, and the connecting member is slidingly connected to the sliding hole along the first direction.

[0010] In some embodiments, the clamping member comprises two clamping jaw portions spaced apart and a connecting rod connected between the two clamping jaw portions, and the connecting rod is fixedly connected to the connecting member.

[0011] In some embodiments, the connecting member comprises a main body portion penetrating the sliding hole and a fixed portion connected to one end of the main body portion close to the connecting rod, the fixed portion extends towards the connecting rod, a surface of the fixed portion is provided with a limiting groove penetrating the fixed portion and facing the end surface of the connecting rod, and the clamping member further comprises a fixed arm connected to the connecting rod, the fixed arm extends into the limiting groove and is limited in the limiting groove.

[0012] In some embodiments, the clamping assembly further comprises a sliding rail arranged on the bottom plate and a sliding block slidingly arranged on the sliding rail, the sliding rail extends along the first direction, and the clamping jaw portions are fixedly connected to the sliding block.

[0013] In some embodiments, the clamping mechanism further comprises a base, and one end of the mechanical arm away from the clamping assembly is rotatably connected to the base.

[0014] In some embodiments, the mechanical arm comprises a first arm, a second arm and a third arm, the first arm is rotatably connected to the base, the second arm is rotatably connected to one end of the first arm away from the base, the third arm is rotatably connected to one end of the second arm away from the first arm, the bottom plate is connected to one end of the third arm away from the second arm, and the rotation axis of the second arm and the rotation axis of the third arm are parallel to each other.

[0015] In some embodiments, the bottom plate is rotatably connected to one end of the third arm away from the second arm, and the rotation axis of the bottom plate is perpendicular to the plate surface of the bottom plate.

[0016] In the second aspect, a testing device is provided, which comprises the clamping mechanism of the above-mentioned scheme.

[0017] The application has the beneficial effects that: the application clamps the material through the clamping assembly, and synchronously moves the clamping assembly and the material through the mechanical arm, the mechanical arm can perform fine actions, so that the accuracy of the material movement can be improved; and the clamping assembly detects whether the material to be clamped exists on the material taking station through the sensing element, so that the automatic grabbing of the material can be realized, the manual discrimination is replaced, and the automation degree of the test process is improved, manual intervention is not needed, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments or exemplary technical descriptions. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0019] Figure 1 is the overall structure schematic diagram of the clamping mechanism provided by the application;

[0020] Figure 2 is the structure schematic diagram of the clamping assembly provided by the application;

[0021] Figure 3 is Figure 2 structure schematic diagram from another perspective;

[0022] Figure 4 is Figure 2 enlarged structure schematic diagram of part A in

[0023] Figure 5 The structure schematic diagram of the mechanical arm and the base provided by the application.

[0024] In the drawings, various reference signs represent:

[0025] 10, mechanical arm; 11, first arm; 12, second arm; 13, third arm; 20, clamping assembly; 21, bottom plate; 211, sliding hole; 22, driving assembly; 221, driving piece; 23, clamping piece; 231, clamping jaw part; 2311, extension arm; 2312, clamping arm; 232, connecting rod; 233, fixed arm; 24, sensing element; 25, connecting piece; 251, main body part; 252, fixed part; 2521, limiting groove; 26, sliding rail; 30, base; 200, material. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0027] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0028] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified.

[0029] In the present application, unless otherwise explicitly specified and limited, "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "on" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. "Below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0030] Please refer to Figures 1 to 5The embodiment of the present application provides a clamping mechanism for transferring a material from a material taking station to a target station, the clamping mechanism comprising a mechanical arm 10 and a clamping assembly 20 arranged on the mechanical arm 10, the clamping assembly 20 being used for clamping the material 200, the mechanical arm 10 having multiple degrees of freedom, and the mechanical arm 10 being used for driving the clamping assembly 20 to move in a three-dimensional space.

[0031] The clamping assembly 20 comprises a bottom plate 21 connected to the mechanical arm 10, a driving assembly 22 arranged on the bottom plate 21, two clamping pieces 23 slidingly arranged on the bottom plate 21, and a sensing element 24 arranged on the bottom plate 21, the two clamping pieces 23 are arranged at intervals, the clamping piece 23 is connected with the output end of the driving assembly 22, the sensing element 24 is in communication connection with the driving assembly 22, the sensing element 24 is used for detecting whether the material 200 to be clamped exists on the material taking station, and a sensing signal is generated, and the driving assembly 22 is used for driving the two clamping pieces 23 to move towards each other according to the sensing signal, so as to clamp the material 200.

[0032] It can be understood that the clamping assembly 20 is used for clamping the material 200, so when the mechanical arm 10 drives the clamping assembly 20 to move in the three-dimensional space, the material 200 can move synchronously with the clamping assembly 20.

[0033] It should be noted that the material 200 in the embodiment of the present application is a sunroof of an automobile, and the noise of the sunroof may come from the noise of the sunroof motor running or the noise generated by the sunroof mechanical group running. The sunroof is driven by the clamping mechanism to be connected with the noise detection structure, so that the noise of the sunroof can be detected. Of course, in other possible embodiments, the to-be-tested piece can also be other to-be-tested materials 200, and the specific structure of the material 200 is not uniquely limited in the embodiment of the present application.

[0034] The present application clamps the material 200 through the clamping assembly 20, and synchronously moves the clamping assembly 20 and the material 200 through the mechanical arm 10, the mechanical arm 10 can perform fine actions, so as to improve the accuracy of the movement of the material 200; and the clamping assembly 20 detects whether the material 200 to be clamped exists on the material taking station through the sensing element 24, so as to realize automatic grabbing of the material 200, replaces manual judgment, and improves the automation degree of the test process, without manual intervention, and improves the production efficiency.

[0035] In some embodiments, as Figure 2 and Figure 3As shown, the driving assembly 22 includes two driving members 221, and two clamping members 23 are respectively connected to the output ends of the two driving members 221. The driving members 221 drive the clamping members 23 to move along the first direction a. Understandably, the two clamping members 23 are arranged at intervals along the first direction a, and the material 200 is arranged between the two clamping members 23. When the two clamping members 23 move along the first direction a, the two clamping members 23 can move towards each other, that is, the two clamping members 23 are contracted, so as to clamp the material 200; or the two clamping members 23 can move away from each other, that is, the two clamping members 23 are stretched, so as to release the material 200.

[0036] Understandably, the clamping assembly 20 includes two sensing elements 24, which are respectively connected in communication with the two driving assemblies 22, and are respectively arranged on the two sides of the bottom plate 21.

[0037] It should be noted that when the clamping assembly 20 is ready to grab, the sensing elements 24 on the two sides can also sense whether the material 200 is in the correct position. Only when the material 200 is in the correct position, the clamping members 23 will have the subsequent tightening and grabbing action. If the material 200 is not in the correct position, or loosens during the grabbing process, the sensing element 24 can detect and issue an alarm prompt.

[0038] In some embodiments, the driving members 221 and the clamping members 23 are respectively arranged on the two opposite plate surfaces of the bottom plate 21. The clamping assembly 20 further includes a connecting member 25 connecting the output end of the driving member 221 and the clamping member 23. The bottom plate 21 is provided with a sliding hole 211 through which the connecting member 25 passes. The connecting member 25 is slidably connected to the sliding hole 211 along the first direction a.

[0039] By arranging the driving members 221 and the clamping members 23 on the two opposite plate surfaces of the bottom plate 21, the positions of the driving members 221 can be reasonably arranged, and the space on the other side of the bottom plate 21 can be fully utilized. The driving members 221 will not interfere with the movement of the clamping members 23. Alternatively, the driving members 221 can be electric cylinders, air cylinders, hydraulic cylinders, or other components or structures that can be extended and retracted. In addition, the connecting member 25 can transmit the output power of the driving member 221 to the clamping member 23. By arranging the connecting member 25, the positions of the driving members 221 and the relative positions of the driving members 221 and the clamping members 23 can be flexibly arranged, which improves the adaptability and flexibility of the clamping mechanism.

[0040] Understandably, one end of the connecting member 25 is connected to the output end of the driving member 221, and the other end of the connecting member 25 is connected to the clamping member 23. The extension direction of the connecting member 25 is perpendicular to the first direction a.

[0041] In some embodiments, as Figures 2 to 4As shown, the clamping piece 23 comprises two spaced apart clamping jaw portions 231 and a connecting rod 232 connected between the two clamping jaw portions 231, and the connecting rod 232 is fixedly connected with the connecting piece 25. Since the connecting rod 232 is fixedly connected with the connecting piece 25, when the driving piece 221 is actuated, the output power of the driving piece 221 is first transmitted to the connecting piece 25, the connecting piece 25 transmits the output power of the driving piece 221 to the connecting rod 232, the connecting rod 232 moves along the first direction a, and since the two clamping jaw portions 231 are connected with the connecting rod 232, the two clamping jaw portions 231 can move with the connecting rod 232.

[0042] Specifically, the clamping jaw portion 231 comprises an extension arm 2311 extending along the first direction a and a clamping arm 2312 connected to the end of the extension arm 2311, the clamping arm 2312 is perpendicular to the extension arm 2311, the clamping arm 2312 can abut against the edge of the material 200 along the first direction a and can be clamped with the edge of the material 200, thereby achieving clamping of the material 200.

[0043] As can be understood, the two clamping pieces 23 are respectively arranged on opposite sides of the bottom plate 21, so that the one side of the bottom plate 21 is provided with two clamping arms 2312, and the other side of the bottom plate 21 is also provided with two clamping arms 2312, and the clamping arms 2312 on both sides of the bottom plate 21 correspond one by one, so that the clamping force can be more balanced.

[0044] As can be understood, the extension arm 2311 extends along the first direction a, so that the extension arm 2312 has a certain length in the first direction a, so that the distance between the two clamping arms 2312 on the opposite sides of the bottom plate 21 can be increased, so that the clamping space can be increased, and larger size materials 200 can be clamped.

[0045] In some embodiments, as Figure 4 As shown, the connecting piece 25 comprises a main body portion 251 penetrating the sliding hole 211 and a fixed portion 252 connected to one end of the main body portion 251 close to the connecting rod 232, the fixed portion 252 extends towards the connecting rod 232, the surface of the fixed portion 252 is provided with a limiting groove 2521, the limiting groove 2521 penetrates the end surface of the fixed portion 252 towards the connecting rod 232, the clamping piece 23 further comprises a fixed arm 233 connected to the connecting rod 232, the fixed arm 233 extends into the limiting groove 2521 and is limited in the limiting groove 2521. Through the limiting groove 2521, the connection between the connecting piece 25 and the clamping piece 23 can be more stable, so that the force transmission is more stable.

[0046] As can be understood, the limiting groove 2521 penetrates the end surface of the fixed portion 252 towards the connecting rod 232, forming an opening, the fixed arm 233 penetrates the opening and extends into the limiting groove 2521, and the size of the end of the fixed arm 233 is greater than the size of the opening, so that the fixed arm 233 will not slide out of the opening along the first direction a.

[0047] In some embodiments, the clamping assembly 20 further comprises a slide rail 26 arranged on the base plate 21, the slide rail 26 extending along the first direction a, and a sliding block slidingly arranged on the slide rail 26, the clamping jaw part 231 being fixedly connected with the sliding block.

[0048] Through the cooperation of the slide rail 26 and the sliding block, the movement of the clamping part 23 can be guided to avoid deviation of the movement of the clamping part 23, and the sliding resistance is reduced through the sliding connection of the slide rail 26 and the sliding block, thereby improving the movement efficiency of the clamping part 23 and the clamping efficiency of the clamping assembly 20, and rapid clamping can be achieved.

[0049] In some embodiments, referring to Figure 5 As shown in the figure, the clamping mechanism further comprises a base 30, and one end of the mechanical arm 10 away from the clamping assembly 20 is rotatably connected to the base 30. By rotatably connecting the mechanical arm 10 to the base 30, the degree of freedom of movement of the mechanical arm 10 can be increased, and the movement range of the mechanical arm 10 can be increased, so that the movement of the mechanical arm 10 is more flexible. Alternatively, the mechanical arm 10 can be rotated by a rotary cylinder, a motor or other rotary devices or rotary structures.

[0050] As can be understood, the base 30 is a disc-shaped structure, the mechanical arm 10 is rotatably connected to the base 30, and the rotation axis of the mechanical arm 10 coincides with the central axis of the base 30, that is, the rotation of the mechanical arm 10 is rotation in the horizontal plane.

[0051] In some embodiments, referring to Figure 5 As shown in the figure, the mechanical arm 10 comprises a first arm 11, a second arm 12 and a third arm 13, the first arm 11 is rotatably connected to the base 30, the second arm 12 is rotatably connected to one end of the first arm 11 away from the base 30, the third arm 13 is rotatably connected to one end of the second arm 12 away from the first arm 11, the base plate 21 is connected to one end of the third arm 13 away from the second arm 12, and the rotation axis of the second arm 12 and the rotation axis of the third arm 13 are parallel to each other.

[0052] Among them, the second arm 12 can support the third arm 13 and the clamping assembly 20 to a certain height. The second arm 12 can be rotated by a rotary cylinder, a motor or other rotary devices or rotary structures, and the second arm 12 can be rotated by a rotary cylinder, a motor or other rotary devices or rotary structures.

[0053] As can be understood, the first arm 11, the second arm 12 and the third arm 13 together form a multi-degree-of-freedom mechanical arm 10, and the degree of freedom of the mechanical arm 10 can be increased or decreased according to the number of test items and the positions of each test assembly, that is, a fourth arm or more arms can be added, or the third arm 13 or more arms can be reduced, under the premise of ensuring that the material 200 can move to be docked with the test structure to reduce the cost of the test device.

[0054] In some embodiments, the bottom plate 21 is rotationally connected to the third arm 13 away from the second arm 12, and the rotation axis of the bottom plate 21 is perpendicular to the plate surface of the bottom plate 21, so that the driving of the clamping assembly 20 can be realized to rotate, and the position of the material 200 can be adjusted to make the material 200 more accurately dock with the test structure. Alternatively, the bottom plate 21 can be rotated by a rotary cylinder, a motor or other rotary devices or rotary structures.

[0055] The utility model also proposes a kind of testing device, the testing device includes clamping mechanism, the specific structure of the clamping mechanism refers to above-mentioned embodiment, since the present testing device has adopted all technical solutions of above-mentioned all embodiments, thus also have all beneficial effects brought by the technical solutions of above-mentioned embodiment, and here is not repeated.

[0056] In summary, the present application clamps material 200 by clamping assembly 20, and synchronously moves clamping assembly 20 and material 200 by mechanical arm 10, and mechanical arm 10 can perform fine action, so as to improve the accuracy of material 200 movement;And clamping assembly 20 detects whether there is material 200 to be clamped on material taking station by inductive element 24, can realize automatic grabbing material 200, replaces artificial discrimination, so as to improve the degree of automation of test process, without manual intervention, improve production efficiency.

[0057] The above is only optional embodiment of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various changes and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the scope of claims of the present application.

Claims

1. A gripping mechanism for transferring material from a pick-up station to a target station, characterised in that, The clamping mechanism comprises a mechanical arm (10) and a clamping assembly (20) arranged on the mechanical arm (10), the clamping assembly (20) is used for clamping the material (200), and the mechanical arm (10) is used for driving the clamping assembly (20) to move in a three-dimensional space. The clamping assembly (20) comprises a bottom plate (21) connected to the mechanical arm (10), a driving assembly (22) arranged on the bottom plate (21), two clamping pieces (23) slidingly arranged on the bottom plate (21), and a sensing element (24) arranged on the bottom plate (21), the two clamping pieces (23) are arranged at intervals, the clamping pieces (23) are connected with the output end of the driving assembly (22), the sensing element (24) is communicatively connected with the driving assembly (22), the sensing element (24) is used for detecting whether the material (200) to be clamped exists on the material taking station and generating a sensing signal, and the driving assembly (22) is used for driving the two clamping pieces (23) to move towards each other according to the sensing signal to clamp the material (200).

2. The clamping mechanism of claim 1, wherein: The driving assembly (22) comprises two driving pieces (221), and the two clamping pieces (23) are respectively connected to the output ends of the two driving pieces (221), and the driving pieces (221) drive the clamping pieces (23) to move in a first direction.

3. The clamping mechanism of claim 2, wherein: The driving pieces (221) and the clamping pieces (23) are respectively arranged on two plate surfaces of the bottom plate (21) opposite to each other, the clamping assembly (20) further comprises a connecting piece (25) connecting the output ends of the driving pieces (221) and the clamping pieces (23), and the bottom plate (21) is provided with a sliding hole (211) through which the connecting piece (25) passes, and the connecting piece (25) is slidingly connected to the sliding hole (211) in the first direction.

4. The clamping mechanism of claim 3, wherein: The clamping piece (23) comprises two clamping jaw portions (231) arranged at intervals and a connecting rod (232) connected between the two clamping jaw portions (231), and the connecting rod (232) is fixedly connected with the connecting piece (25).

5. The clamping mechanism of claim 4, wherein: The connecting piece (25) comprises a main body portion (251) penetrating the sliding hole (211) and a fixed portion (252) connected to one end of the main body portion (251) close to the connecting rod (232), the fixed portion (252) extends towards the connecting rod (232), a limiting groove (2521) is arranged on the surface of the fixed portion (252), the limiting groove (2521) penetrates the end face of the fixed portion (252) towards the connecting rod (232), and the clamping piece (23) further comprises a fixed arm (233) connected to the connecting rod (232), the fixed arm (233) extends into the limiting groove (2521) and is limited in the limiting groove (2521).

6. The clamping mechanism of claim 4, wherein: The clamping assembly (20) further comprises a slide rail (26) arranged on the bottom plate (21) and a sliding block (27) slidingly arranged on the slide rail (26), the slide rail (26) extends along the first direction, and the clamping jaw (231) is fixedly connected with the sliding block (27).

7. The clamping mechanism of any one of claims 1 to 6, wherein: The clamping mechanism further comprises a base (30), and one end of the mechanical arm (10) away from the clamping assembly (20) is rotatably connected to the base (30).

8. The clamping mechanism of claim 7, wherein: The mechanical arm (10) comprises a first arm (11), a second arm (12) and a third arm (13), the first arm (11) is rotatably connected to the base (30), the second arm (12) is rotatably connected to one end of the first arm (11) away from the base (30), the third arm (13) is rotatably connected to one end of the second arm (12) away from the first arm (11), and the bottom plate (21) is connected to one end of the third arm (13) away from the second arm (12), and the rotation axis of the second arm (12) and the rotation axis of the third arm (13) are parallel to each other.

9. The clamping mechanism of claim 8, wherein: The bottom plate (21) is rotatably connected to one end of the third arm (13) away from the second arm (12), and the rotation axis of the bottom plate (21) is perpendicular to the plate surface of the bottom plate (21).

10. A test device, characterized by The clamping mechanism comprises the clamping mechanism according to any one of claims 1-9.

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