Clamping and carrying mechanism, workpiece assembling device and liquid level sensor manufacturing equipment

Abstract

The invention belongs to the technical field of workpiece loading and transporting, solves the defects of low workpiece clamping reliability and low transporting accuracy in the prior art, and provides a clamping and transporting mechanism, a workpiece assembling device and liquid level sensor manufacturing equipment. The driving assembly is supported by the supporting assembly; the clamping assembly comprises a pair of clamping plates, and the clamping plates move close to each other or away from each other so as to correspondingly clamp or release workpieces; the rotating and bearing assembly is supported by the supporting assembly and is used for rotationally connecting the driving assembly with the clamping assembly; the force transmission assembly is fixed to the supporting assembly and used for receiving the carrying acting force. The clamping and carrying mechanism, the workpiece assembling device and the liquid level sensor manufacturing equipment have the advantages of being high in clamping reliability and carrying accuracy for workpieces.

Description

Technical Field

[0001] The invention relates to the technical field of workpiece shipping, and in particular to a clamping and transporting mechanism, a workpiece assembling device and liquid level sensor manufacturing equipment. Background Art

[0002] In large-scale automated production, it is often necessary to clamp and transport workpieces to the desired workstations. The reliability of clamping and the accuracy of transportation have an important impact on the subsequent assembly of the workpiece, so there are high requirements for reliable clamping and accurate transportation of the workpiece. Taking the existing contact-type liquid level sensor as an example, it uses the contacts on the reed sheet that can rotate relative to the resistor sheet to change the resistance value to achieve the output of the sensor signal. The liquid level sensor is generally configured in the fuel tank of a fuel vehicle, and the oil level in the tank is obtained based on the sensor signal, so that the vehicle fuel gauge indicates the oil level accordingly. The liquid level sensor includes a skeleton, a resistor, a rocker arm, a spring and a reed. After the rocker arm and the reed are assembled at one station, they need to be clamped and transported to another station where the skeleton with the resistor and the spring assembled is located for further assembly. However, in the prior art, for the clamping and transporting operations, either the traditional manual method is adopted, which has extremely low work efficiency, or a simple tooling semi-automatic method is adopted, and the operator still needs to participate to a large extent. Moreover, the operator is likely to fail to ensure reliable clamping and accurate transportation of the workpiece during the participation process. In particular, the naked eye cannot accurately observe and distinguish the model of the workpiece every time, so it is possible to clamp and transport the wrong model of the workpiece, resulting in subsequent assembly misalignment or even product failure.

[0003] In summary, the prior art has technical problems of low clamping reliability and low handling accuracy for workpieces. Summary of the invention

[0004] The present invention aims at the shortcomings of the above-mentioned prior art, that is, low clamping reliability and low handling accuracy for workpieces. To achieve one purpose of the present invention, a clamping and handling mechanism is provided, including: a support assembly; a driving assembly, supported by the support assembly; a clamping assembly, including a pair of clamping plates, which move relatively close to or relatively away from each other to clamp or release the workpiece respectively; a transfer assembly, supported by the support assembly and rotatably connecting the driving assembly and the clamping assembly; and a force transmission assembly, fixed to the support assembly and used to receive the handling force.

[0005] Furthermore, the supporting assembly includes a pillar, a bracket and a supporting seat, the driving assembly includes a driving cylinder, the driving cylinder includes a cylinder body and a piston rod, the bracket is respectively fixed to the outer side of the pillar and the cylinder body, the bottom of the pillar is fixed to the supporting seat, the transfer bearing assembly is arranged on the supporting seat, and the transfer bearing assembly is respectively connected to the free end of the piston rod and the clamping assembly, so that the transfer bearing assembly receives the driving force from the piston rod and drives the clamping assembly to rotate.

[0006] Furthermore, the clamping assembly also includes a driver, which can form a gap between the two clamps. A pair of driving blocks of the first driver drives a pair of clamps to move relatively close or relatively far away, so that when they are relatively close, the pair of clamps will clamp and fix the workpiece in the gap and can move the workpiece under the action of a carrying force, and when they are relatively far away, the workpiece is allowed to detach from the clamp.

[0007] Furthermore, the transfer bearing assembly includes a transfer bearing plate, and the driving assembly also includes a driving ring. The transfer bearing plate is provided with a fixed block, a pair of spaced-apart rotating arms, and a pair of first through holes and a pair of second through holes respectively opposite to each other on the pair of rotating arms. The pair of first through holes and the annular holes of the driving ring are connected by a first connecting rod, and the pair of second through holes and the pair of plate holes of the transfer bearing plate are connected by a second connecting rod, so that the driving ring driven by the piston rod drives the transfer bearing plate to rotate around the second connecting rod, thereby driving a pair of clamping plates to move to the required positions for clamping and assembling workpieces.

[0008] Furthermore, the clamping and transporting mechanism also includes a workpiece detector arranged on the side of the transfer plate facing the workpiece, and the workpiece detector includes a transmitting end and a receiving end, and detects the clamping condition of the workpiece by receiving the signal reflected by the receiving end from the above-mentioned transmitting end to the workpiece clamped by a pair of clamps.

[0009] Furthermore, the clamping and transporting mechanism also includes a pair of rotation detectors arranged on the transfer plate and located on both sides of the second connecting rod. Each rotation detector is spaced opposite to the transfer plate. The rotation detector determines whether the rotation angle of the transfer plate is within a preset angle range by touching the transfer plate.

[0010] Furthermore, the driving assembly, the clamping assembly and the transfer bearing assembly are all arranged as a pair symmetrical with respect to the pillar, the two transfer bearing assemblies are supported by the support seat and respectively rotatably connect a clamping assembly with a driving assembly, and a workpiece detector and a pair of transfer detectors are respectively provided at opposite ends of the support seat.

[0011] Furthermore, the force transmission component includes a transmission connecting plate and a transmission fixing plate, the transmission connecting plate is fixedly connected to the transmission fixing plate, the pillar is provided with a flange, the flange is provided with a plurality of fixing holes, the transmission connecting plate, and a plurality of fixing parts are respectively fixedly connected to a plurality of pairs of first fixing holes and second fixing holes, and the transmission fixing plate is used to be fixedly connected to the six-axis manipulator to receive the handling force so that the workpiece can be moved in multiple directions and assembled.

[0012] To achieve another purpose of the present invention, a workpiece assembly device is provided, including a clamping and transporting mechanism, a six-axis manipulator and a CCD detection mechanism. The clamping and transporting mechanism is any of the above clamping and transporting mechanisms. The six-axis manipulator is fixedly connected to the force transmission component. The six-axis manipulator transports the workpiece to the top of the CCD detection mechanism after a pair of clamps have clamped the workpiece. The CCD detection mechanism detects the identification code on the workpiece to determine whether the workpiece is qualified. The six-axis manipulator drives unqualified workpieces above a recovery area and the pair of clamps move relatively away so that the unqualified workpieces are recovered into the recovery area and drives qualified workpieces to move in multiple different directions for assembly.

[0013] To achieve another purpose of the present invention, a liquid level sensor manufacturing device is provided, including the above-mentioned workpiece assembly device, the liquid level sensor includes a skeleton and a rocker arm, a spring, a reed and a resistor assembled on the skeleton, the workpiece is a rocker arm, the reed is fixed on the rocker arm, and a six-axis robot transports the rocker arm and assembles it on the skeleton by adjusting the orientation of the rocker arm multiple times to avoid interference with the spring on the skeleton.

[0014] The beneficial effects of the present invention are:

[0015] The clamping and conveying mechanism, workpiece assembly device and liquid level sensor manufacturing equipment provided by the present invention can reliably install and clamp the workpiece from one workstation or release the workpiece to the next workstation through a pair of relatively movable clamping plates of the clamping assembly, and can rotate the clamped workpiece by utilizing the transfer assembly to adjust the position of the workpiece when it is assembled or processed at the next workstation, for example. A force transmission assembly is used to receive the conveying force so that the support assembly can be driven by movement and / or rotation, thereby transferring the workpiece to the next workstation with a desired position with high accuracy so as to assemble or process the workpiece. Therefore, the workpiece has the advantages of high clamping reliability and high conveying accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for use in the embodiment of the present invention will be briefly introduced below. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work, and these are all within the protection scope of the present invention.

[0017] Figure 1 It is a schematic diagram of the overall structure of the clamping and transporting mechanism of an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the overall structure of the clamping and transporting mechanism of the embodiment of the present invention, which mainly hides the support base;

[0019] Figure 3 It is a structural schematic diagram of a transfer plate of a clamping and transporting mechanism according to an embodiment of the present invention;

[0020] Figure 4 A schematic diagram of the structure of a liquid level sensor manufactured by a liquid level sensor manufacturing device according to an embodiment of the present invention;

[0021] Figure 5 It is a schematic diagram of the overall structure of a workpiece assembly device according to an embodiment of the present invention;

[0022] Description of reference numerals:

[0023] 10. Clamping and handling mechanism; 1. Support assembly; 11. Pillar; 12. Bracket; 13. Support seat; 2. Driving assembly; 21. Driving cylinder; 211. Cylinder body; 212. Piston rod; 22. Driving ring; 3. Clamping assembly; 31. Clamping plate; 32. Driver; 321. Driving block; 4. Transfer bearing assembly; 41. Transfer bearing plate; 411. Fixed block; 412. Rotating arm; 413. First through hole; 41 4. Second through hole; 415. Convex ring; 43. First connecting rod; 44. Second connecting rod; 45. Abutting cylindrical member; 5. Force transmission assembly; 51. Transmission connecting plate; 52. Flange; 53. Transmission fixing plate; 6. Workpiece detector; 7. Transfer detector; 20. Six-axis manipulator; 30. CCD detection mechanism; 40. Liquid level sensor; 41. Skeleton; 42. Rocker arm; 43. Spring; 44. Reed; 45. Resistor. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described in conjunction with the drawings in the embodiment of the present invention. It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. Moreover, the terms "comprises", "includes" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element limited by the sentence "comprising..." does not exclude the presence of other identical elements in the process, method, article or device including the element. If there is no conflict, the embodiments of the present invention and the various features in the embodiments can be combined with each other, all within the scope of protection of the present invention.

[0025] refer to Figures 1 to 4As an object of the present invention, a clamping and handling mechanism 10 is provided, which includes a support assembly 1, a drive assembly 2, a clamping assembly 3, a transfer assembly 4 and a force transmission assembly 5. The drive assembly 2 is supported by the support assembly 1. The clamping assembly 3 includes a pair of clamps 31, a pair of clamps 31 move relatively close to each other to clamp the workpiece, and a pair of clamps 31 move relatively away from each other to release the workpiece. The transfer assembly 4 is supported by the support assembly 1 and rotationally connects the drive assembly 2 and the clamping assembly 3. The force transmission assembly 5 is fixed to the support assembly 1 and is used to receive the handling force. In the present invention, the workpiece is illustrated by taking the rocker arm 42 of the liquid level sensor 40 and the reed 44 as an example. Therefore, the clamping and handling mechanism 10 provided by the embodiment of the present invention can reliably install and clamp the workpiece from one station or release the workpiece to the next station through a pair of relatively movable clamping plates 31 of the clamping assembly 3, and can rotate the clamped workpiece by using the transfer assembly 4 to adjust the position of the workpiece when it is assembled or processed at the next station, and the force transmission assembly 5 is used to receive the handling force so that the support assembly 1 can be driven by movement or / and rotation, thereby transferring the workpiece to the next station with a desired position with high accuracy so as to assemble or process the workpiece. Therefore, the clamping and handling mechanism 10 provided by the present invention has the advantages of high clamping reliability and high handling accuracy for the workpiece.

[0026] Please refer to Figure 1 Specifically, the support assembly 1 includes a support column 11, a bracket 12 and a support seat 13, the driving assembly 2 includes a driving cylinder 21, the driving cylinder 21 includes a cylinder body 211 and a piston rod 212, the bracket 12 is respectively fixed to the outer side of the support column 11 and the cylinder body 211, the bottom of the support column 11 is fixed to the support seat 13, the transfer bearing assembly 4 is arranged on the support seat 13, and the transfer bearing assembly 4 is respectively connected to the free end of the piston rod 212 and the clamping assembly 3, so that the transfer bearing assembly 4 receives the driving force from the piston rod 212 and drives the clamping assembly 3 to rotate. In this way, the overall structure of the support assembly 1 is compact, and the transfer bearing assembly 4 can support the clamping assembly 3 and drive it to rotate while reliably receiving the driving force of the piston rod 212.

[0027] Please refer to Figure 1 Specifically, the clamping assembly 3 further includes a driver 32, and a gap can be formed between the two clamping plates 31. A pair of driving blocks 321 of the first driver 32 drives the pair of clamping plates 31 to move relatively close or relatively far away, so that when they are relatively close, the pair of clamping plates 31 clamps and fixes the workpiece in the gap and can move the workpiece under the action of the transport force, and when they are relatively far away, the workpiece is allowed to be disengaged from the clamping. Therefore, by using the driver 32 to drive the pair of clamping plates 31 to move relative to each other, it is not only compatible with workpieces of different sizes, but also can apply a reliable clamping force to clamp and fix the workpiece therebetween.

[0028] Please refer to Figures 1 to 3 Specifically, the transfer bearing assembly 4 includes a transfer bearing plate 41, and the driving assembly 2 also includes a driving ring 22. The transfer bearing plate 41 is provided with a fixed block 411, a pair of rotating arms 412 spaced opposite to each other, and a pair of first through holes 413 and a pair of second through holes 414 respectively opposite to each other on the pair of rotating arms 412. The pair of first through holes 413 and the ring holes of the driving ring 22 are connected by a first connecting rod 43, and the pair of second through holes 414 and the pair of plate holes of the transfer bearing plate 41 are connected by a second connecting rod 44, so that the driving ring 22 driven by the piston rod 212 drives the transfer bearing plate 41 to rotate around the second connecting rod 44, thereby driving the pair of clamping plates 31 to move to the required position for clamping and assembling the workpiece. Therefore, by utilizing the rotational cooperation between each connecting root and the corresponding pair of through holes, the linear driving force from the piston rod 212 can be reliably converted into the rotational driving force for rotating the transfer bearing plate 41.

[0029] Please refer to Figures 1 to 3 As a further improvement, a plurality of convex rings 415 respectively surrounding each second through hole 414 are provided on the transfer plate 41, and a plurality of openings respectively for abutting cylindrical members 45 to pass through are provided on the support seat 13. The number of abutting cylindrical members 45 and convex rings 415 is the same, and the cylindrical surface of the abutting cylindrical member 45 abuts against the outer ring surface of the corresponding convex ring 415, thereby limiting the rotation trajectory of each transfer plate 41 and making the rotation of each transfer plate 41 smoother.

[0030] Please refer to Figure 2 Preferably, the clamping and transporting mechanism 10 also includes a workpiece detector 6 disposed on the side of the transfer plate 41 facing the workpiece. The workpiece detector 6 includes a transmitting end and a receiving end. The clamping condition of the workpiece is detected by the receiving end of the signal reflected from the workpiece clamped by a pair of clamping plates 31 emitted by the transmitting end. It is known that the clamping condition includes whether the workpiece is clamped and whether the clamping posture of the workpiece is accurate. Therefore, if the receiving end receives a signal or an expected signal amount, it is detected that the clamping condition of the workpiece is normal, that is, the workpiece is accurately clamped. If the receiving end does not receive a signal or an expected signal amount, it is detected that the clamping condition of the workpiece is abnormal, that is, the workpiece is not clamped or there is a deviation in the clamping posture, thereby ensuring that the workpiece, such as the rocker arm 42 of the liquid level sensor 40, is accurately clamped and transported to be accurately assembled on the skeleton 41. For example, Figure 2 As shown, the straight line with an arrow shows the signal transmission path. If the reed 44 on the rocker arm 42 deviates in position relative to the workpiece detector 6 due to the deviation in the clamping posture of the workpiece, the signal transmission path cannot satisfy the receiving end to receive the preset signal, and it can be detected that the clamping condition of the workpiece is abnormal.

[0031] Please refer to Figure 1Preferably, the clamping and handling mechanism 10 further includes a pair of indexing detectors 7 disposed on the transfer plate 41 and located on both sides of the second connecting rod 44. Each indexing detector 7 is spaced apart from the transfer plate 41 and the indexing detector 7 determines whether the rotation angle of the transfer plate 41 is within a preset angle range by contacting the transfer plate 41. Therefore, by setting the two indexing detectors 7 at symmetrical positions on the transfer plate 41, the rotation angle of the transfer plate 41 can be accurately limited, thereby ensuring high accuracy in handling the workpiece.

[0032] Please refer to Figure 1 and Figure 2 Preferably, the driving assembly 2, the clamping assembly 3 and the transfer bearing assembly 4 are all set to be a pair symmetrical with respect to the pillar 11, and the two transfer bearing assemblies 4 are supported by the support seat 13 and respectively make a clamping assembly 3 and a driving assembly 2 rotatably connected, and a workpiece detector 6 and a pair of indexing detectors 7 are respectively provided at the opposite ends of the support seat 13. In this way, it is equivalent to a clamping and conveying mechanism 10 that can clamp two workpieces at the same time and convey them to the same desired position or two different positions, thereby improving the work efficiency, especially for two different workpieces with a relative assembly relationship, one of the workpieces can be conveyed to a desired position first and then the other workpiece can be assembled to the workpiece fixed at the desired position, thereby further improving the work efficiency.

[0033] Please refer to Figure 1 and Figure 4 Specifically, the force transmission component 5 includes a transmission connecting plate 51 and a transmission fixing plate 53. The transmission connecting plate 51 and the transmission fixing plate 53 are fixedly connected, for example, by welding, threaded connection, etc. The pillar 11 is provided with a flange 52, and the flange 52 is provided with a plurality of fixing holes. The transmission connecting plate 51 and a plurality of fixing members are respectively fixedly connected with a plurality of pairs of first fixing holes and second fixing holes. The transmission fixing plate 53 is used to be fixedly connected with the six-axis manipulator 20 to receive the handling force so that the workpiece can be moved in multiple directions and assembled. Therefore, the transmission connecting plate 51 can be reliably fixedly connected with the pillar 11 and the transmission fixing plate 53, respectively, so that the force transmission component 5 can reliably transmit the handling force from the six-axis manipulator 20, and the six-axis manipulator 20 can provide the multi-degree-of-freedom movement directions required for handling the workpiece.

[0034] As another object of the present invention, in conjunction with reference Figure 4The present invention also provides a workpiece assembly device, which includes a clamping and transporting mechanism 10, a six-axis manipulator 20 and a CCD detection mechanism 30. It can be known that the CCD detection mechanism 30 includes a CCD camera, the clamping and transporting mechanism 10 is any of the above clamping and transporting mechanisms 10, the six-axis manipulator 20 is fixedly connected to the force transmission component 5, and the six-axis manipulator 20 transports the workpiece to the top of the CCD detection mechanism 30 after a pair of clamping plates 31 have clamped the workpiece. The CCD detection mechanism 30 detects the identification code on the workpiece to determine whether the workpiece is qualified. The six-axis manipulator 2 0 drives the unqualified workpiece above the recovery area and a pair of clamps 31 move away from each other so that the unqualified workpiece is recovered into the recovery area and the qualified workpiece is driven to move in multiple different directions to be assembled. The recovery area can be a recovery box. Taking the workpiece as the rocker arm 42 of the liquid level sensor 40 as an example, the rocker arm 42 is provided with characters that identify the model of the rocker arm 42, so that the CCD detection mechanism 30 determines whether the model of the rocker arm 42 is correct by identifying the characters as the identification code, thereby ensuring that the rocker arm 42 with the correct signal is assembled to the skeleton 41 as a qualified workpiece. The workpiece assembly device can obtain the beneficial effects brought by any clamping and handling mechanism 10, which will not be repeated here. Therefore, the workpiece assembly device can not only clamp the workpiece with high reliability and handle the workpiece with high accuracy, but also ensure that only qualified workpieces are assembled.

[0035] As another object of the present invention, the present invention also provides a liquid level sensor manufacturing device (not shown), which includes any of the above clamping and handling mechanisms 10, the liquid level sensor 40 includes a frame 41 and a rocker arm 42, a spring 43, a reed 44 and a resistor 45 mounted on the frame 41, the workpiece is the rocker arm 42, the reed 44 is fixed on the rocker arm 42, more specifically, the rocker arm 42 fixed with the reed 44 is rotatably arranged on the resistor 45, the spring 43 is arranged between the frame 41 and the rocker arm 42 so as to apply an elastic force to the relative position of the reed 44 and the resistor 45, the rocker arm 42 receives, for example, changes in the buoyancy of gasoline in the oil tank and rotates to different angles relative to the resistor 45 so that the contact on the reed 44 changes the resistance value, thereby achieving the purpose of outputting the sensing signal. The six-axis manipulator 20 carries the rocker arm 42 and is assembled on the frame 41 in a manner of adjusting the orientation of the rocker arm 42 multiple times to avoid interference with the spring 43 on the frame 41. The liquid level sensor manufacturing equipment can obtain the beneficial effects brought by any workpiece assembly device, which will not be described in detail here. Therefore, the liquid level sensor manufacturing equipment adopts a six-axis manipulator 20, which can move the rocker arm 42 in multiple angles during the process of assembling it to the frame 41, thereby realizing the assembly of the rocker arm 42 in a non-interfering manner with the spring 43 assembled on the frame 41, and using the CCD detection mechanism 30 to detect whether the rocker arm 42 is correct, thereby ensuring that the liquid level sensor 40 is assembled with the correct rocker arm 42, and ensuring the quality of the liquid level sensor 40 is reliable.

[0036] 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 by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Clamping and handling mechanism, characterized in that: include: Support components; A driving assembly supported by the supporting assembly; A clamping assembly includes a pair of clamping plates, wherein the clamping plates move relatively close to or relatively away from each other to clamp or release the workpiece respectively; A transfer assembly, supported by the support assembly and rotatably connecting the drive assembly and the clamping assembly; The force transmission component is fixed to the support component and is used to receive the handling force.

2. The clamping and transporting mechanism according to claim 1, characterized in that: The support assembly includes a pillar, a bracket and a support seat, the drive assembly includes a drive cylinder, and the drive cylinder includes a cylinder body and a piston rod. The bracket is respectively fixed to the outer side of the pillar and the cylinder body, and the bottom of the pillar is fixed to the support seat. The transfer bearing assembly is arranged on the support seat, and the transfer bearing assembly is respectively connected to the free end of the piston rod and the clamping assembly, so that the transfer bearing assembly receives the driving force from the piston rod and drives the clamping assembly to rotate.

3. The clamping and transporting mechanism according to claim 2, characterized in that: The clamping assembly also includes a driver, which can form a gap between the two clamps. A pair of driving blocks of the first driver drives the pair of clamps to move relatively close or relatively far away, so that when they are relatively close, the pair of clamps clamp and fix the workpiece located in the gap and can move the workpiece under the action of a carrying force, and when they are relatively far away, the workpiece is allowed to detach from the clamp.

4. The clamping and transporting mechanism according to claim 3, characterized in that: The transfer bearing assembly includes a transfer bearing plate, and the driving assembly also includes a driving ring. The transfer bearing plate is provided with a fixed block, a pair of spaced-apart rotating arms, and a pair of first through holes and a pair of second through holes respectively opposite to each other on the pair of rotating arms. The pair of first through holes and the annular holes of the driving ring are connected by a first connecting rod, and the pair of second through holes and a pair of plate holes of the transfer bearing plate are connected by a second connecting rod, so that the driving ring driven by the piston rod drives the transfer bearing plate to rotate around the second connecting rod, thereby driving the pair of clamping plates to move to the required positions for clamping and assembling workpieces.

5. The clamping and transporting mechanism according to claim 4, characterized in that: The clamping and transporting mechanism also includes a workpiece detector arranged on the side of the transfer plate facing the workpiece, and the workpiece detector includes a transmitting end and a receiving end. The clamping condition of the workpiece is detected by the receiving end receiving the signal reflected from the workpiece clamped by the pair of clamps transmitted by the above-mentioned transmitting end.

6. The clamping and transporting mechanism according to claim 5, characterized in that: The clamping and transporting mechanism also includes a pair of rotation detectors arranged on the transfer plate and located on both sides of the second connecting rod. Each of the rotation detectors is spaced apart from the transfer plate and determines whether the rotation angle of the transfer plate is within a preset angle range by touching the transfer plate.

7. The clamping and transporting mechanism according to claim 6, characterized in that: The driving assembly, clamping assembly and transfer assembly are all arranged as a pair symmetrically relative to the pillar, and the two transfer assemblies are both supported by the support seat and respectively rotatably connect one of the clamping assemblies with one of the driving assemblies, and a workpiece detector and a pair of transfer detectors are respectively provided at opposite ends of the support seat.

8. The clamping and transporting mechanism according to claim 1, characterized in that: The force transmission assembly includes a transmission connecting plate and a transmission fixing plate, the transmission connecting plate is fixedly connected to the transmission fixing plate, the pillar is provided with a flange, the flange is provided with a plurality of fixing holes, the transmission connecting plate and a plurality of fixing parts are respectively fixedly connected to a plurality of pairs of first fixing holes and second fixing holes, and the transmission fixing plate is used to be fixedly connected to the six-axis manipulator to receive the handling force so that the workpiece can be moved in multiple directions and assembled.

9. A workpiece assembly device, characterized in that: It includes a clamping and transporting mechanism, a six-axis manipulator and a CCD detection mechanism, the clamping and transporting mechanism is the clamping and transporting mechanism according to any one of claims 1 to 8, the six-axis manipulator is fixedly connected to the force transmission component, the six-axis manipulator transports the workpiece to above the CCD detection mechanism after a pair of the clamps have clamped the workpiece, the CCD detection mechanism detects the identification code on the workpiece to determine whether the workpiece is qualified, the six-axis manipulator drives the unqualified workpiece above the recovery area and the pair of the clamps move relatively away so that the unqualified workpiece is recovered into the recovery area and drives the qualified workpiece to move in multiple different directions for assembly.

10. Liquid level sensor manufacturing equipment, comprising the workpiece assembly device according to claim 9, the liquid level sensor comprising a skeleton and a rocker arm, a spring, a reed and a resistor assembled on the skeleton, the workpiece being a rocker arm, the reed being fixed on the rocker arm, the six-axis manipulator transporting the rocker arm and assembling it on the skeleton in a manner of adjusting the orientation of the rocker arm multiple times to avoid interference with the spring on the skeleton.

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