Positioning device and surface measuring equipment

Abstract

The present invention provides a positioning device, which includes a mounting seat, a first positioning component and a second positioning component. The first positioning component includes a first driving member, a first positioning member and a second positioning member. The first positioning member and the second positioning member are respectively arranged at two opposite ends of the mounting seat, and the first driving member can drive at least one of the first positioning member and the second positioning member to move relative to the other; the second positioning component includes a second driving member, a stopper and a third positioning member. The stopper is fixedly arranged at one end of the mounting seat, and the third positioning member is arranged at the other end of the mounting seat. The second driving member can drive the third positioning member to move relative to the mounting seat. The positioning device of the present invention can automatically position and install a workpiece simply and reliably. The present invention also provides a curved surface measuring device, and the workpiece can be automatically positioned and installed to facilitate measurement.

Description

Technical Field

[0001] The present invention relates to the technical field of positioning devices, and in particular to a positioning device and curved surface measuring equipment. Background Art

[0002] Before measuring a workpiece, a measuring device usually needs a positioning device to position and install the workpiece to be measured, so as to facilitate the measurement operation and ensure the accuracy of the measurement. When the existing positioning device positions and installs the workpiece, it usually needs to clamp the workpiece at a predetermined position. The positioning and installation operation is difficult, especially when positioning a workpiece with a curved surface structure, which needs to be improved. Summary of the invention

[0003] In view of the above problems, the present invention provides a positioning device and a curved surface measuring device, which can solve the problem of difficult positioning and installation.

[0004] The present invention provides a positioning device, comprising:

[0005] A mounting seat, used for mounting a workpiece;

[0006] A first positioning assembly includes a first driving member, a first positioning member, and a second positioning member, wherein the first positioning member and the second positioning member are respectively disposed at opposite ends of the mounting seat, and the first driving member is capable of driving at least one of the first positioning member and the second positioning member to move relative to the other to clamp the workpiece on the mounting seat;

[0007] The second positioning component includes a second driving member, a stop member and a third positioning member. The stop member is fixedly arranged at one end of the mounting seat, and the third positioning member is arranged at the other end of the mounting seat relative to the stop member. The connecting line between the stop member and the third positioning member and the connecting line between the first positioning member and the second positioning member form an angle with each other. The second driving member can drive the third positioning member to move relative to the mounting seat to push the workpiece to adjust its position.

[0008] In one embodiment, the positioning device further comprises:

[0009] Abutting member and a first elastic member;

[0010] Among them, the supporting member is slidably connected to one of the first positioning member and the second positioning member, and is arranged toward one side of the other one. One end of the first elastic member is connected to the supporting member, and the other end is connected to one of the first positioning member and the second positioning member. The first positioning member or the second positioning member can drive the supporting member to support the workpiece through the first elastic member.

[0011] In one embodiment, the positioning device further includes a second elastic member, one end of the second elastic member is connected to the output end of the second driving member, and the other end is connected to the third positioning member, and the second driving member can drive the third positioning member to resist the workpiece through the second elastic member.

[0012] In one embodiment, a limit member is further provided between the first positioning member and the second positioning member, and the stop member is fixedly arranged on the limit member. The length of the limit member along the direction from the first positioning member to the second positioning member is greater than the length of the mounting seat along the direction from the first positioning member to the second positioning member. The limit member can limit the first positioning member or the second positioning member to move toward the mounting seat.

[0013] In one embodiment, a first limiting portion is further provided at the end of the limiting member facing the first positioning member and / or the second positioning member; the positioning device also includes a first buffer member, the first buffer member is connected to the limiting member, and the first buffer member is close to the adjacent first positioning member and / or the second positioning member relative to the first limiting portion, and the first buffer member and the first limiting portion can respectively buffer and limit the movement of the first positioning member and / or the second positioning member toward the mounting seat.

[0014] In one embodiment, the positioning device further includes an adsorption component, which is connected to the mounting seat and can adsorb and fix the workpiece on the mounting seat.

[0015] In one embodiment, the positioning device further includes a first lifting assembly, and the first lifting assembly includes:

[0016] A third driving member and a connecting seat;

[0017] The output end of the third driving member is connected to the connecting seat, the first driving member is fixedly connected to the connecting seat, and the third driving member can drive the connecting seat to rise and fall relative to the mounting seat to adjust the positions of the first positioning member and the second positioning member relative to the mounting seat.

[0018] In one embodiment, the positioning device further includes a second lifting assembly, and the second lifting assembly includes:

[0019] Adapter;

[0020] A fourth driving member, the fourth driving member is fixedly connected to the adapter seat;

[0021] A connecting member, the connecting member is slidably connected to the adapter, one end of the connecting member is connected to the output end of the fourth driving member, and the other end is fixedly connected to the second driving member;

[0022] The fourth driving member can drive the connecting member to slide along the adapter seat, and the connecting member can drive the second driving member to rise and fall relative to the mounting seat to adjust the position of the third positioning member relative to the mounting seat.

[0023] In one embodiment, the positioning device further includes a supporting assembly, and the supporting assembly includes a first supporting member, a second supporting member, and a third supporting member;

[0024] Among them, the first supporting member, the second supporting member and the third supporting member are respectively arranged on the side of the first positioning member, the second positioning member and the stop member close to the mounting seat, and all extend toward the mounting seat. The first supporting member, the second supporting member and the third supporting member can support the workpiece detached from the mounting seat.

[0025] The positioning device provided by the present invention comprises a mounting seat for mounting a workpiece, a first positioning member and a second positioning member are respectively arranged at two opposite ends of the mounting seat, and a first driving member can drive at least one of the first positioning member and the second positioning member to move relative to the other, so that the first positioning member and the second positioning member can clamp the workpiece on the mounting seat, so that the workpiece is fixed relative to the mounting seat; at the same time, a stopper is arranged at one end of the mounting seat, and a third positioning member is arranged at the other end of the mounting seat relative to the stopper, and a line connecting the stopper and the third positioning member forms an angle with a line connecting the first positioning member and the second positioning member, and the second driving member can drive the third positioning member to move toward the mounting seat, and make the third positioning member push the workpiece, so as to adjust the position of the workpiece on the mounting seat, and the stopper can prevent the workpiece on the mounting seat from being pushed off, thereby improving the reliability of the positioning operation; and thus the positioning device can simply and reliably automatically position and install the workpiece, which is beneficial to improving work efficiency.

[0026] The present invention also provides a curved surface measuring device, including a carrier assembly. The curved surface measuring device also includes the above-mentioned positioning device, and the positioning device is connected to the carrier assembly.

[0027] The curved surface measuring device provided by the present invention can realize automatic positioning and installation of a workpiece by arranging the above-mentioned positioning device, thereby facilitating measurement of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of an embodiment of a positioning device of the present invention;

[0029] Figure 2 for Figure 1 A schematic structural diagram of the positioning device from another perspective;

[0030] Figure 3 for Figure 2 A partial enlarged view of position A in the positioning device shown;

[0031] Figure 4 for Figure 1 Schematic diagram of the structure of the positioning device from other perspectives.

[0032] Description of Reference Numerals

[0033] 100, positioning device; 10, mounting seat; 11, adsorption assembly; 20, first positioning assembly; 21, first positioning member; 22, second positioning member; 23, first driving member; 24, abutting member; 25, first elastic member; 26, limiting member; 261, first limiting portion; 27, first buffer member; 30, first lifting assembly; 31, third driving member; 32, fixing seat; 33, connecting seat; 40, second positioning assembly; 41, second driving member; 42, third positioning member; 4 21. Positioning portion; 422. Sliding portion; 43. Stop member; 44. Second elastic member; 45. Adapter member; 50. Second lifting assembly; 51. Fourth driving member; 52. Adapter seat; 521. Second buffer member; 522. Third buffer member; 523. Second limiting portion; 524. Third limiting portion; 53. Connecting member; 531. First abutting portion; 532. Second abutting portion; 60. Supporting assembly; 61. First supporting member; 62. Second supporting member; 63. Third supporting member. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described in combination with the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0035] In order to solve the technical problem that it is difficult for a positioning device to position a workpiece in the prior art, the present invention provides a positioning device, including: a mounting seat, a first positioning component and a second positioning component; the mounting seat is used to mount the workpiece, the first positioning component includes a first driving member, a first positioning member and a second positioning member, the first positioning member and the second positioning member are respectively arranged at opposite ends of the mounting seat, and the first driving member can drive at least one of the first positioning member and the second positioning member to move relative to the other to clamp the workpiece on the mounting seat; the second positioning component includes a second driving member, a stopper and a third positioning member, the stopper is fixedly arranged at one end of the mounting seat, the third positioning member is arranged at the other end of the mounting seat relative to the stopper, and the line connecting the stopper and the third positioning member is at an angle to the line connecting the first positioning member and the second positioning member, and the second driving member can drive the third positioning member to move relative to the mounting seat to push the workpiece to adjust its position. The following is a detailed description.

[0036] See also Figure 1 , Figure 1The present invention provides a positioning device 100, which is usually arranged in a measuring device to position and install a workpiece, thereby facilitating measurement of the workpiece.

[0037] In this embodiment, the positioning device 100 is arranged in a curved surface measuring device for positioning and installing curved surface workpieces, such as 3D curved glass, VR glasses and other workpieces; it can be understood that in other embodiments, the positioning device 100 can also be arranged in other measuring devices and used to position other planar workpieces without specific limitation.

[0038] The positioning device 100 includes a mounting seat 10, a first positioning component 20, a first lifting component 30, a second positioning component 40 and a second lifting component 50. The first positioning component 20 and the second positioning component 40 surround the mounting seat 10, the first lifting component 30 is connected to the first positioning component 20, and the second lifting component 50 is connected to the second positioning component 40; the mounting seat 10 is used to install the workpiece, the first positioning component 20 and the second positioning component 40 are used to achieve position adjustment and installation and fixation of the workpiece, the first lifting component 30 is used to adjust the position of the first positioning component 20, and the second lifting component 50 is used to adjust the position of the second positioning component 40.

[0039] In the present embodiment, the shape of the mounting seat 10 is roughly rectangular, and the rectangular mounting seat 10 can be adapted to mount most workpieces; it can be understood that in other embodiments, according to different working conditions, the shape of the mounting seat 10 can also be other regular or irregular shapes.

[0040] In this embodiment, since the positioning device 100 is arranged in the curved surface measuring equipment, the surface of the mounting seat 10 has a curved curvature and is adapted to the curvature of the curved surface workpiece to be measured, so that the workpiece to be measured can be fitted on the mounting seat 10 to improve the installation reliability; it can be understood that in other embodiments, since the positioning device 100 can also be applied to other measuring equipment, the mounting seat 10 can also be a planar structure.

[0041] The positioning device 100 further includes an adsorption component 11, which is connected to the mounting seat 10. The adsorption component 11 can adsorb and fix the workpiece to be measured to the surface of the mounting seat 10, thereby achieving fixed installation of the workpiece to be measured relative to the mounting seat 10. In this embodiment, the adsorption component 11 is a suction cup, which is easy to obtain and can generate a large suction force, so that the workpiece to be measured can be firmly fixed to the mounting seat 10; it can be understood that in other embodiments, the adsorption component 11 can also be other components with adsorption function.

[0042] In this embodiment, the number of suction cups is three, and three suction cups can meet the suction requirements under most working conditions while reducing investment costs; it can be understood that in other embodiments, in order to meet different working conditions, the suction cups can also be set to other numbers.

[0043] The first positioning assembly 20 includes a first positioning member 21, a second positioning member 22 and a first driving member 23. The first positioning member 21 and the second positioning member 22 are both connected to the first driving member 23. The first positioning member 21 and the second positioning member 22 are used to clamp the workpiece to be positioned. The first driving member 23 is used to provide driving force for the first positioning member 21 and / or the second positioning member 22.

[0044] Specifically, the first positioning member 21 is arranged at one end of the mounting seat 10, and the second positioning member 22 is arranged at the other end of the mounting seat 10 and is arranged opposite to the first positioning member 21. The first driving member 23 can drive at least one of the first positioning member 21 and the second positioning member 22 to move relative to the other, so that the first positioning member 21 and the second positioning member 22 can jointly clamp and position the workpiece on the mounting seat 10.

[0045] In this embodiment, the first driving member 23 can drive the first positioning member 21 and the second positioning member 22 to move together, that is, the first positioning member 21 and the second positioning member 22 can move relative to the mounting seat 10 respectively, thereby expanding the positioning range of the first positioning assembly 20 relative to the mounting seat 10, which is beneficial for the positioning device 100 to better position the workpiece; it can be understood that in other embodiments, according to different working conditions, the first driving member 23 can also only drive one of the first positioning member 21 and the second positioning member 22 to move relative to the mounting seat 10.

[0046] In this embodiment, the shape of the first positioning member 21 and the shape of the second positioning member 22 are two plate-like bodies that are roughly parallel and spaced apart. The plate-like first positioning member 21 and the second positioning member 22 can better apply force to the workpiece, thereby better clamping and positioning the workpiece, preventing the workpiece from falling off, and improving the reliability of the positioning device 100; it can be understood that in other embodiments, the shape of the first positioning member 21 and the shape of the second positioning member 22 may be different, and the shape of the first positioning member 21 and the shape of the second positioning member 22 may be other curved, regular or irregular shapes.

[0047] The positioning device 100 also includes a supporting member 24 and a first elastic member 25. The supporting member 24 is slidably connected to one of the first positioning member 21 and the second positioning member 22, and is arranged toward one side of the other. One end of the first elastic member 25 is connected to the supporting member 24, and the other end of the first elastic member 25 is connected to the first positioning member 21 or the second positioning member 22. The first positioning member 21 or the second positioning member 22 can drive the supporting member 24 to support the workpiece through the first elastic member 25; thus, under the elastic force of the first elastic member 25, when the supporting force of the supporting member 24 on the workpiece is too large, the supporting member 24 can slide relative to the first positioning member 21 or the second positioning member 22, and then the supporting member 24 can softly support the workpiece to prevent damage to the workpiece caused by excessive supporting force, which is beneficial for the positioning device 100 to protect the workpiece.

[0048] In this embodiment, the abutment member 24 and the first elastic member 25 are arranged in the second positioning member 22; it can be understood that in other embodiments, the abutment member 24 and the first elastic member 25 can also be arranged in the first positioning member 21, or the first positioning member 21 and the second positioning member 22 are both provided with the abutment member 24 and the first elastic member 25.

[0049] In this embodiment, the first elastic member 25 is a spring, which has the advantages of being easy to obtain, cheap, and having excellent elastic properties. It can be understood that in other embodiments, the first elastic member 25 can also be selected as other elastic members made of elastic materials such as rubber.

[0050] In this embodiment, the first driving member 23 is a cylinder, which has a first moving end and a second moving end. The first moving end is fixedly connected to the first positioning member 21, and the second moving end is fixedly connected to the second positioning member 22, so that the cylinder can control the movement of the first positioning member 21 and the second positioning member 22 through the first moving end and the second moving end respectively, so that the first positioning member 21 and the second positioning member 22 can clamp and position the workpiece; at the same time, the driving force provided by the cylinder is relatively stable, which is conducive to the positioning device 100 to firmly clamp the workpiece; it can be understood that in other embodiments, the first driving member 23 can also be selected as other power sources such as motors.

[0051] The positioning device 100 also includes a limit member 26, which is arranged between the first positioning member 21 and the second positioning member 22. The limit member 26 is provided with a first limit portion 261 at one end facing the first positioning member 21 and one end facing the second positioning member 22, and the length of the limit member 26 along the direction from the first positioning member 21 to the second positioning member 22 is greater than the length of the mounting seat 10 along the direction from the first positioning member 21 to the second positioning member 22. The first limit portion 261 of the limit member 26 can limit the movement of the first positioning member 21 or the second positioning member 22 toward the mounting seat 10 by abutting against the first positioning member 21 and the second positioning member 22, thereby preventing the first positioning member 21 and the second positioning member 22 from applying too large a clamping force to the workpiece, which may cause the workpiece to be easily damaged, further improving the stability of the positioning device 100 and facilitating the normal operation of the positioning device 100.

[0052] It can be understood that in another embodiment, since the first driving member 23 drives one of the first positioning member 21 and the second positioning member 22 to move toward the other, the limiting member 26 may also be provided with a first limiting portion 261 only at one end toward the movable first positioning member 21 or the second positioning member 22, so that the first limiting portion 261 can limit the movable first positioning member 21 or the second positioning member 22.

[0053] The positioning device 100 further includes a first buffer 27, which is used to buffer the relative movement of the first positioning member 21 and the second positioning member 22. Specifically, the first buffer 27 is arranged relative to the first limiting portion 261 close to the adjacent first positioning member 21 and / or the second positioning member 22, so that when the first positioning member 21 and the second positioning member 22 move toward the mounting seat 10, the first positioning member 21 and the second positioning member 22 can abut against the first buffer 27 before abutting against the limiting member 26, so that the first buffer 27 can buffer the movement of the first positioning member 21 and the second positioning member 22, prevent the first positioning member 21 and the second positioning member 22 from being damaged due to excessive abutting force, and further protect the first positioning member 21 and the second positioning member 22, which is conducive to the normal operation of the positioning device 100.

[0054] In the present embodiment, since both the first positioning member 21 and the second positioning member 22 can move relative to the mounting seat 10, the first limiting portions 261 are provided at both ends of the limiting member 26, so that the number of the first buffer members 27 is set to two, and the two first buffer members 27 are respectively provided corresponding to the first positioning member 21 and the second positioning member 22, and the two first buffer members 27 are respectively close to the adjacent first positioning member 21 and the second positioning member 22 relative to different first limiting portions 261, so that the two first buffer members 27 can respectively buffer the movement of the first positioning member 21 and the second positioning member 22; it can be understood that in other embodiments, since only one of the first positioning member 21 and the second positioning member 22 can move relative to the mounting seat 10, the limiting member 26 is only provided with the first limiting portion 261 at one end facing the movable first positioning member 21 or the second positioning member 22, so that the number of the first buffer members 27 is set to one, and the first buffer member 27 is close to the adjacent first positioning member 21 or the second positioning member 22 relative to the first limiting portion 261, so that the first buffer member 27 can buffer the movement of the first positioning member 21 or the second positioning member 22.

[0055] In the present embodiment, the first buffer component 27 is a component having a buffer structure; it is understandable that in other embodiments, the first buffer component 27 may also be a buffer component made of rubber or other materials, as long as the buffer effect can be achieved, without any specific limitation.

[0056] Please also read Figure 2 , Figure 2 for Figure 1 The first lifting assembly 30 includes a third driving member 31, a fixing seat 32 and a connecting seat 33, wherein the third driving member 31 is connected to the fixing seat 32, the connecting seat 33 is connected to the third driving member 31, and the first driving member 23 is connected to the connecting seat 33; the third driving member 31 provides a power source for the first lifting assembly 30, the fixing seat 32 is used to install the third driving member 31, and the connecting seat 33 is used to drive the first driving member 23 to rise and fall.

[0057] Specifically, the fixing seat 32 is fixed to the surrounding components, the third driving member 31 is fixedly connected to the fixing seat 32; the connecting seat 33 is fixedly connected to the output end of the third driving member 31, and the first driving member 23 is fixedly connected to the connecting seat 33; thus, the third driving member 31 can drive the connecting seat 33 to move relative to the mounting seat 10, and the connecting seat 33 drives the first driving member 23 to move together, and then the first positioning member 21 and the second positioning member 22 connected to the output end of the first driving member 23 move accordingly, and further adjust the positions of the first positioning member 21 and the second positioning member 22 relative to the mounting seat 10, so that the first positioning member 21 and the second positioning member 22 can clamp the workpiece at a suitable position, which is conducive to the use of the positioning device 100. .

[0058] In this embodiment, the third driving member 31 and the fixed seat 32 are fixedly connected by threaded fasteners, so that the third driving member 31 and the fixed seat 32 have good connection stability, and are easy to disassemble and replace. It can be understood that in other embodiments, the third driving member 31 and the fixed seat 32 can also be fixed by other methods such as welding.

[0059] In this embodiment, the third driving member 31 is a cylinder; it can be understood that in other embodiments, the third driving member 31 can also be other power sources such as a motor.

[0060] The second positioning assembly 40 includes a second driving member 41, a third positioning member 42 and a stop member 43. The third positioning member 42 is connected to the second driving member 41. The second driving member 41 provides driving force for the movement of the third positioning member 42. The third positioning member 42 is used to position the workpiece, and the stop member 43 is used to stop the workpiece on the mounting seat 10.

[0061] Specifically, the stop member 43 is arranged at one end of the mounting seat 10, and the third positioning member 42 is arranged at the other end of the mounting seat 10 relative to the stop member 43, and the line connecting the stop member 43 and the third positioning member 42 is at an angle to the line connecting the first positioning member 21 and the second positioning member 22, so that the second driving member 41 can drive the third positioning member 42 to move relative to the mounting seat 10, and the third positioning member 42 can push the workpiece to adjust its position relative to the mounting seat 10.

[0062] In this embodiment, the connecting line of the stop member 43 and the third positioning member 42 is perpendicular to the connecting line of the first positioning member 21 and the second positioning member 22, so that the third positioning member 42 can push the workpiece to adjust the position in a clamping direction perpendicular to the first positioning member 21 and the second positioning member 22, thereby preventing the workpiece from deflecting, which is beneficial for the positioning device 100 to better position; it can be understood that in other embodiments, according to different working conditions, the connection between the connecting line of the stop member 43 and the third positioning member 42 and the first positioning member 21 and the second positioning member 22 may also be at other angles.

[0063] In this embodiment, the second driving member 41 is a cylinder; it can be understood that in other embodiments, the second driving member 41 can also be other power sources such as a motor.

[0064] The positioning device 100 also includes a second elastic member 44, one end of the second elastic member 44 is connected to the output end of the second driving member 41, and the other end of the second elastic member 44 is connected to the third positioning member 42, so that the second driving member 41 can drive the third positioning member 42 to press against the workpiece through the second elastic member 44. When the output force provided by the second driving member 41 is too large, due to the existence of the second elastic member 44, the third positioning member 42 can squeeze the second elastic member 44 and move relative to the second driving member 41, thereby achieving the third positioning member 42 to softly press the workpiece to prevent damage to the workpiece and ensure the normal use of the positioning device 100.

[0065] Please also read Figure 3 , Figure 3 for Figure 2 A partial enlarged view of the location A in the positioning device shown. In this embodiment, an adapter 45 is provided between the third positioning member 42 and the output end of the second driving member 41, and the adapter 45 is fixedly connected to the output end of the second driving member 41. The third positioning member 42 includes a positioning portion 421 and a sliding portion 422, and the sliding portion 422 is slidably connected to the adapter 45. The second elastic member 44 is sleeved with the sliding portion 422 and abuts against the positioning portion 421 and the adapter 45, so that the second driving member 41 can drive the adapter 45 to drive the third positioning member 42 to move toward the mounting seat 10, and the positioning portion 421 can press against the second elastic member 44 and slide toward the adapter 45, thereby achieving the above effect; it can be understood that in other embodiments, the second elastic member 44 can also be directly connected to the output end of the second driving member 41 and the third positioning member 42, as long as the above purpose can be achieved.

[0066] In this embodiment, the second elastic member 44 is a spring; it can be understood that in other embodiments, the second elastic member 44 can also be an elastic member made of rubber or other materials.

[0067] In this embodiment, the stop member 43 is disposed on the limiting member 26; it can be understood that in other embodiments, the stop member 43 can also be directly disposed at one end of the mounting seat 10, as long as the stop member 43 can cooperate with the third positioning member 42 to position the workpiece.

[0068] The positioning device also includes a supporting assembly 60, which includes a first supporting member 61, a second supporting member 62 and a third supporting member 63. The first supporting member 61, the second supporting member 62 and the third supporting member 63 are respectively arranged on the side of the first positioning member 21, the second positioning member 22 and the stop member 43 close to the mounting seat 10, and all extend toward the mounting seat 10; when the workpiece is placed on the mounting seat 10, the first supporting member 61, the second supporting member 62 and the third supporting member 63 can support the workpiece that is separated from the mounting seat 10 due to placement error, further protect the workpiece, improve the reliability of the positioning device 100, and facilitate use.

[0069] Please also read Figure 4 , Figure 4 for Figure 1 The second lifting assembly 50 includes a fourth driving member 51, an adapter seat 52 and a connecting member 53; the fourth driving member 51 is connected to the adapter seat 52, and the connecting member 53 connects the fourth driving member 51 and the adapter seat 52; the adapter seat 52 is used to place the fourth driving member 51, the fourth driving member 51 provides a power source for the second lifting assembly 50, and the connecting member 53 is used to drive the second driving member 41 to move.

[0070] Specifically, the fourth driving member 51 is fixedly connected to the adapter seat 52, the connecting member 53 is slidably connected to the adapter seat 52, and one end of the connecting member 53 is fixedly connected to the output end of the fourth driving member 51, and the other end of the connecting member 53 is fixedly connected to the second driving member 41, so that the fourth driving member 51 can drive the connecting member 53 to slide along the adapter seat 52, and the connecting member 53 can drive the second driving member 41 to rise and fall relative to the mounting seat 10, and then adjust the position of the third positioning member 42 connected to the second driving member 41 relative to the mounting seat 10, so that the third positioning member 42 can push the workpiece in a suitable position, which is conducive to the use of the positioning device 100.

[0071] In this embodiment, the fourth driving member 51 is a cylinder; it can be understood that in other embodiments, the fourth driving member 51 can also be selected as other power sources such as a motor.

[0072] The connecting member 53 is provided with a first abutting portion 531 and a second abutting portion 532, and the first abutting portion 531 and the second abutting portion 532 are arranged at intervals; the adapter seat 52 is provided with a second buffer member 521 and a third buffer member 522, and the second buffer member 521 and the third buffer member 522 are arranged at intervals, and the first abutting portion 531 is located between the second buffer member 521 and the third buffer member 522. When the fourth driving member 51 drives the connecting member 53 to move, the first abutting portion 531 can abut against the second buffer member 521 and the third buffer member 522 to buffer the movement of the connecting member 53, so that the connecting member 53 is protected; at the same time, the adapter seat 52 is also provided with a second limiting member The second limiting portion 523 and the third limiting portion 524 are arranged at intervals, and the second abutting portion 532 is arranged between the second limiting portion 523 and the third limiting portion 524. When the fourth driving member 51 drives the connecting member 53 to move, the second abutting portion 532 can abut against the second limiting portion 523 and the third limiting portion 524 to limit the movement of the connecting member 53, thereby limiting the lifting and lowering of the second driving member 41 relative to the mounting seat 10, preventing the second driving member 41 from leaving the workpiece range, so that the second driving member 41 can drive the third fixing member to push the workpiece within a suitable range, thereby facilitating the normal use of the positioning device 100.

[0073] In this embodiment, the first abutment portion 531 and the second abutment portion 532 are arranged flush with each other; the second buffer member 521 and the second limiting portion 523 are arranged at one end of the adapter seat 52 in the same direction, and the third buffer member 522 and the third limiting portion 524 are arranged at the other end of the adapter seat 52 in the same direction, and the distance between the second buffer member 521 and the first abutment portion 531 is smaller than the distance between the second limiting portion 523 and the second abutment portion 532, and the distance between the third buffer member 522 and the first abutment portion 531 is smaller than the distance between the third limiting portion 524 and the second abutment portion 532, so that the connecting member 53 can be buffered first and then limited during the sliding process relative to the adapter seat 52, thereby preventing the second abutment portion 532 from being easily damaged due to excessive abutment force when directly abutting against the second limiting portion 523 or the third limiting portion 524, thereby facilitating the normal operation of the positioning device 100; it can be understood that in other embodiments, according to different working conditions, the above-mentioned components can also be arranged in other ways.

[0074] The positioning device provided by the present invention comprises a mounting seat for mounting a workpiece, a first positioning member and a second positioning member are respectively arranged at two opposite ends of the mounting seat, and a first driving member can drive at least one of the first positioning member and the second positioning member to move relative to the other, so that the first positioning member and the second positioning member can clamp the workpiece on the mounting seat, so that the workpiece is fixed relative to the mounting seat; at the same time, a stopper is arranged at one end of the mounting seat, and a third positioning member is arranged at the other end of the mounting seat relative to the stopper, and a line connecting the stopper and the third positioning member forms an angle with a line connecting the first positioning member and the second positioning member, and the second driving member can drive the third positioning member to move toward the mounting seat, and make the third positioning member push the workpiece, so as to adjust the position of the workpiece on the mounting seat, and the stopper can prevent the workpiece on the mounting seat from being pushed off, thereby improving the reliability of the positioning operation; and thus the positioning device can simply and reliably automatically position and install the workpiece, which is beneficial to improving work efficiency.

[0075] The present invention further provides a curved surface measuring device, comprising a carrier assembly and the above-mentioned positioning device 100 , wherein the positioning device 100 is connected to the carrier assembly.

[0076] The curved surface measuring device provided by the present invention can realize automatic positioning and installation of a workpiece by arranging the above-mentioned positioning device, thereby facilitating measurement of the workpiece.

[0077] In addition, in the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", "stacked" and the like should be understood in a broad sense, for example, it can be fixedly connected, detachably connected, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A positioning device, characterized in that: include: A mounting seat, used for mounting a workpiece; A first positioning assembly includes a first driving member, a first positioning member, and a second positioning member, wherein the first positioning member and the second positioning member are respectively disposed at opposite ends of the mounting seat, and the first driving member is capable of driving at least one of the first positioning member and the second positioning member to move relative to the other to clamp the workpiece on the mounting seat; A second positioning assembly includes a second driving member, a stopper and a third positioning member, wherein the stopper is fixedly arranged at one end of the mounting seat, and the third positioning member is arranged at the other end of the mounting seat relative to the stopper, and a line connecting the stopper and the third positioning member and a line connecting the first positioning member and the second positioning member form an angle with each other, and the second driving member can drive the third positioning member to move relative to the mounting seat to push the workpiece to adjust the position; The positioning device further includes a first lifting assembly, wherein the first lifting assembly includes: A third driving member, a fixing seat and a connecting seat; Among them, the third driving member is fixedly connected to the fixing seat, the output end of the third driving member is connected to the connecting seat, the first driving member is fixedly connected to the connecting seat, and the third driving member can drive the connecting seat to rise and fall relative to the mounting seat to adjust the positions of the first positioning member and the second positioning member relative to the mounting seat.

2. The positioning device according to claim 1, characterized in that The positioning device also includes: Abutting member and a first elastic member; In which, the abutment member is slidably connected to one of the first positioning member and the second positioning member, and is arranged toward one side of the other one. One end of the first elastic member is connected to the abutment member, and the other end is connected to one of the first positioning member and the second positioning member. The first positioning member or the second positioning member can drive the abutment member to abut the workpiece through the first elastic member.

3. The positioning device according to claim 1, characterized in that: The positioning device also includes a second elastic member, one end of which is connected to the output end of the second driving member, and the other end of which is connected to the third positioning member. The second driving member can drive the third positioning member to resist the workpiece through the second elastic member.

4. The positioning device according to claim 1, characterized in that: A limiting member is also provided between the first positioning member and the second positioning member, and the stop member is fixedly arranged on the limiting member. The length of the limiting member along the direction from the first positioning member to the second positioning member is greater than the length of the mounting seat along the direction from the first positioning member to the second positioning member. The limiting member can limit the first positioning member or the second positioning member to move toward the mounting seat.

5. The positioning device according to claim 4, characterized in that: A first limiting portion is also provided at the end of the limiting member facing the first positioning member and / or the second positioning member; the positioning device also includes a first buffer member, the first buffer member is connected to the limiting member, and the first buffer member is close to the adjacent first positioning member and / or the second positioning member relative to the first limiting portion, and the first buffer member and the first limiting portion can respectively buffer and limit the movement of the first positioning member and / or the second positioning member toward the mounting seat.

6. The positioning device according to claim 1, characterized in that: The positioning device also includes an adsorption component, which is connected to the mounting seat and can adsorb and fix the workpiece on the mounting seat.

7. The positioning device according to claim 1, characterized in that: The positioning device further includes a second lifting assembly, wherein the second lifting assembly includes: Adapter; A fourth driving member, the fourth driving member is fixedly connected to the adapter; A connecting member, wherein the connecting member is slidably connected to the adapter, and one end of the connecting member is connected to the output end of the fourth driving member, and the other end of the connecting member is fixedly connected to the second driving member; The fourth driving member can drive the connecting member to slide along the adapter seat, and the connecting member can drive the second driving member to rise and fall relative to the mounting seat to adjust the position of the third positioning member relative to the mounting seat.

8. The positioning device according to claim 1, characterized in that: The positioning device further comprises a supporting assembly, wherein the supporting assembly comprises a first supporting member, a second supporting member and a third supporting member; Among them, the first supporting member, the second supporting member and the third supporting member are respectively arranged on the side of the first positioning member, the second positioning member and the stop member close to the mounting seat, and all extend toward the mounting seat. The first supporting member, the second supporting member and the third supporting member can support the workpiece detached from the mounting seat.

9. A curved surface measuring device, comprising a carrier assembly, characterized in that: The curved surface measuring device further comprises a positioning device as claimed in any one of claims 1 to 8, wherein the positioning device is connected to the carrier assembly.

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