Pressing mechanism

Abstract

The utility model discloses a pressing mechanism, and relates to the technical field of extrusion devices, and the pressing mechanism comprises a bearing assembly and a pressing assembly; the bearing assembly is provided with a bearing position for bearing a workpiece; the pressing assembly comprises a supporting piece, a transmission arm, a pressing piece and a driving piece. The supporting piece is arranged on the bearing assembly and located on one side of the bearing position. The transmission arm comprises a force application part and a power part which are connected, the end, close to the power part, of the force application part is rotationally connected with the supporting piece, the end, away from the power part, of the force application part extends towards the bearing position, the end, away from the force application part, of the power part is rotationally connected with the driving piece, and the length of the power part is larger than that of the force application part; the pressing piece is arranged at the end, close to the bearing position, of the force application part, and the driving piece is used for driving the transmission arm to swing so that the transmission arm can drive the pressing piece to press the workpiece. According to the pressing mechanism, the pressure for extruding the workpiece can be improved, and the workpiece pressing stability is enhanced.

Description

Technical Field

[0001] The present application relates to the technical field of extrusion devices, and in particular to a pressing mechanism. Background Art

[0002] Currently, when a workpiece needs to be clamped for welding, drilling, or other processing, a rotary clamping cylinder is typically used to directly drive a clamp to squeeze the workpiece. However, because the rotary clamping cylinder's bracket drives the clamp to squeeze the workpiece using a forceful lever principle, the resulting pressure is low and the stability of the clamping is poor. Utility Model Content

[0003] In view of the above, it is necessary to propose a clamping mechanism to increase the pressure of squeezing the workpiece and enhance the stability of holding the workpiece.

[0004] The embodiment of the present application provides a clamping mechanism, including a bearing assembly and a clamping assembly; the bearing assembly has a bearing position for bearing a workpiece; the clamping assembly includes a support member, a transmission arm, a clamping member and a driving member, the support member is arranged on the bearing assembly and is located on one side of the bearing position, the transmission arm includes a force-applying part and a power part connected to each other, the end of the force-applying part close to the power part is rotatably connected to the support member, the end of the force-applying part away from the power part extends toward the bearing position, the end of the power part away from the force-applying part is rotatably connected to the driving member, the length of the power part is greater than the length of the force-applying part, the clamping member is arranged at one end of the force-applying part close to the bearing position, and the driving member is used to drive the transmission arm to swing, so that the transmission arm drives the clamping member to clamp the workpiece.

[0005] The clamping mechanism of the embodiment of the present application drives the transmission arm to swing by setting a driving member, so that the transmission arm drives the clamping member to clamp the workpiece to the bearing position set on the bearing assembly, and sets the transmission arm to include a force-applying part and a power part connected thereto, the end of the force-applying part close to the power part is rotatably connected to the support member, the end of the force-applying part away from the power part extends toward the bearing position, the end of the power part away from the force-applying part is rotatably connected to the driving member, and the length of the power part is greater than the length of the force-applying part. When the clamping mechanism clamps the workpiece, since the length of the power part is greater than the length of the force-applying part, the transmission arm is a force-saving lever, so that the pressure applied by the clamping member to the workpiece is greater than the force output by the driving member, thereby increasing the pressure of the clamping mechanism to squeeze the workpiece and enhancing the stability of the workpiece holding; in addition, when the clamping member clamps the workpiece, under the lever action of the transmission arm, the reaction force applied by the workpiece to the clamping member becomes smaller when transmitted to the driving member, which is beneficial to reducing the chance of damage to the driving member.

[0006] In some embodiments, one end of the support member is rotatably connected to the bearing assembly, and the other end of the support member is rotatably connected to an end of the force-applying portion away from the bearing position.

[0007] In some embodiments, the force-applying part includes a pressure section and an inclined section connected to each other, the pressure section is located on the side of the power part away from the load-bearing component, and the extension direction of the pressure section is the same as the extension direction of the power part, the pressure section extends toward the load-bearing position at one end away from the inclined section and is connected to the clamping member, the inclined section is connected to the power part at one end away from the pressure section and is rotatably connected to the support member at one end away from the load-bearing component, and the angle between the extension direction of the inclined section and the extension direction of the power part is an acute angle.

[0008] In some embodiments, the pressing member is rotatably connected to the force applying portion.

[0009] In some embodiments, the pressing member is provided with a plurality of extrusion protrusions arranged at intervals on one side facing the supporting assembly.

[0010] In some embodiments, the bearing assembly includes a bearing member, an assembly member and a connecting frame; the bearing position is provided on the bearing member, and one side of the bearing member is provided with avoidance holes and through-holes arranged at intervals, the through-hole is located on the side of the avoidance hole away from the bearing position, and the avoidance hole is close to the hole wall of the through-hole and extends toward the through-hole; the assembly member is provided on the side of the bearing member away from the bearing position, the end of the support member away from the force-applying part is passed through the avoidance hole and is rotatably connected to the assembly member, and the avoidance hole is used to avoid the support member when the transmission arm drives the support member to swing; the connecting frame is provided on the side of the bearing member away from the bearing position, the driving member is provided on the connecting frame, and the driving member has an output shaft, the output shaft is passed through the through-hole and is rotatably connected to the end of the power part away from the bearing position.

[0011] In some embodiments, the avoidance hole has a first limiting surface arranged at an angle near the hole wall of the perforation, the first limiting surface is inclined toward the side of the support member where the support position is provided, and the angle between the first limiting surface and the side of the support member where the support position is provided is an acute angle, and the first limiting surface is used to abut against the support member to limit the swing angle of the support member.

[0012] In some embodiments, the supporting member is further provided with an avoidance groove, which is located on a side of the through hole close to the avoidance hole and is connected to the through hole.

[0013] In some embodiments, the groove wall of the avoidance groove near the avoidance hole has a second limiting surface that is inclined, and the second limiting surface is inclined toward the side of the support member where the support position is provided, and the angle between the second limiting surface and the side of the support member where the support position is provided is an acute angle.

[0014] In some embodiments, the length of the power part is N times the length of the force-applying part, where N is a positive number greater than or equal to 1.5. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the clamping mechanism provided in the embodiment of the present application and the applicable workpiece.

[0016] Figure 2 yes Figure 1 A schematic three-dimensional structural diagram of the clamping mechanism from another angle is shown.

[0017] Figure 3 yes Figure 1 Schematic diagram of the motion state of the support member and the transmission arm in the clamping mechanism shown.

[0018] Description of main component symbols

[0019] Clamping mechanism 100

[0020] Carrying assembly 10

[0021] Carrier 11

[0022] Carrying plate 111

[0023] Bearing position 1111

[0024] Mounting block 112

[0025] Avoidance hole 1121

[0026] First limiting surface 1121a

[0027] Perforation 1122

[0028] Avoidance slot 1123

[0029] Second limiting surface 1123a

[0030] Assembly parts 12

[0031] Connecting frame 13

[0032] Compression assembly 2

[0033] Support member 20

[0034] Transmission arm 30

[0035] force applying portion 31

[0036] Pressure section 311

[0037] Inclined section 312

[0038] Power Department 32

[0039] Pressing piece 40

[0040] Extrusion bulge 41

[0041] Driving member 50

[0042] Output shaft 51

[0043] Connection block 511

[0044] Workpiece 600 DETAILED DESCRIPTION

[0045] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be understood as limiting the present application.

[0046] In the description of the present application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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 on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, it should be noted that the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0047] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; 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 this application can be understood according to the specific circumstances. Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0048] See also Figure 1 The present embodiment provides a clamping mechanism 100 for clamping a workpiece 600. The workpiece 600 may be a fixture, a component of an electronic product, etc. For ease of understanding and explanation, the present embodiment is described using the workpiece 600 as a fixture for a mobile phone as an example. Obviously, this is not a limitation of the present embodiment.

[0049] See also Figure 1 and Figure 2 In this embodiment, the pressing mechanism 100 includes a bearing assembly 10 and a pressing assembly 2.

[0050] The carrying assembly 10 has a carrying position 1111 for carrying the workpiece 600 .

[0051] The clamping assembly 2 includes a support member 20, a transmission arm 30, a clamping member 40 and a driving member 50. The support member 20 is arranged on the bearing assembly 10 and is located on one side of the bearing position 1111. The transmission arm 30 is rotatably connected to the support member 20. The transmission arm 30 includes a force-applying part 31 and a power part 32 connected thereto. One end of the force-applying part 31 close to the power part 32 is rotatably connected to the support member 20, and the other end of the force-applying part 31 away from the power part 32 extends toward the bearing position 1111. One end of the power part 32 away from the force-applying part 31 is rotatably connected to the driving member 50. The length of the power part 32 is greater than the length of the force-applying part 31. The clamping member 40 is arranged at one end of the force-applying part 31 close to the bearing position 1111. The driving member 50 is arranged on the bearing assembly 10. The driving member 50 is used to drive the transmission arm 30 to swing, so that the transmission arm 30 drives the clamping member 40 to clamp the workpiece 600.

[0052] It can be understood that by setting the length of the power part 32 to be greater than the length of the force-applying part 31, the distance between the connection point between the support member 20 and the transmission arm 30 and the end of the power part 32 away from the bearing position 1111 is greater than the distance between the connection point between the support member 20 and the transmission arm 30 and the end of the force-applying part 31 close to the bearing position 1111, and the transmission arm 30 is a force-saving lever.

[0053] When the clamping mechanism 100 clamps the workpiece 600, the workpiece 600 is first placed on the supporting position 1111, and then the driving member 50 drives the transmission arm 30 to swing. At this time, the end of the power part 32 away from the supporting position 1111 is away from the supporting assembly 10, and the end of the force-applying part 31 close to the supporting position 1111 is close to the supporting assembly 10, and the end of the force-applying part 31 close to the supporting position 1111 drives the clamping member 40 to clamp the workpiece 600. Since the transmission arm 30 is a force-saving lever, the pressure applied by the clamping member 40 to the workpiece 600 is greater than the force output by the driving member 50, thereby increasing the pressure of the clamping mechanism 100 to squeeze the workpiece 600, so that the workpiece 600 is squeezed tighter; in addition, since the clamping member 40 presses the workpiece 600, under the lever action of the transmission arm 30, the reaction force applied by the workpiece 600 to the clamping member 40 becomes smaller when it is transmitted to the driving member 50, which is beneficial to reduce the probability of damage to the driving member 50.

[0054] In this embodiment, the driving member 50 is a telescopic cylinder. In some other embodiments, the driving member 50 may also be a power member such as an electric push rod, a linear slide, etc., and this embodiment of the present application does not make any specific limitations on this.

[0055] In this embodiment, the length of the power portion 32 is N times the length of the force-applying portion 31, where N is a positive number greater than or equal to 1.5. Thus, according to the principle of leverage, the pressure exerted by the pressing member 40 on the workpiece 600 is N times the force exerted by the driving member 50, thereby further increasing the pressure exerted by the pressing mechanism 100 on the workpiece 600.

[0056] In one embodiment, the length of the power portion 32 is 2.5 times the length of the force-applying portion 31 , thereby increasing the pressure of the pressing mechanism 100 to squeeze the workpiece 600 and reducing the probability of the pressing mechanism 100 damaging the workpiece 600 due to excessive force.

[0057] In this embodiment, one end of the support member 20 is rotatably connected to the bearing assembly 10, and the other end of the support member 20 is rotatably connected to the end of the force-applying portion 31 away from the bearing position 1111. When the driving member 50 drives the transmission arm 30 to swing, the support member 20 swings simultaneously under the drive of the transmission arm 30. Specifically, when the end of the power part 32 away from the bearing position 1111 is driven by the driving member 50 to approach the bearing assembly 10, the support member 20 swings toward the direction close to the driving member 50, and the transmission arm 30 drives the clamping member 40 away from the bearing position 1111, thereby effectively avoiding interference between the transmission arm 30 and the clamping member 40 and the workpiece 600 when taking and placing the workpiece 600; when the end of the power part 32 away from the bearing position 1111 is driven by the driving member 50 to move away from the bearing assembly 10, the support member 20 swings toward the direction close to the bearing position 1111, and the transmission arm 30 drives the clamping member 40 close to the bearing position 1111, thereby facilitating the clamping of the workpiece 600; in addition, by arranging the support member 20 to be rotatably connected to the bearing assembly 10, compared with the support member 20 being fixed on the bearing assembly 10, the movement range of the transmission arm 30 and the clamping member 40 is wider, thereby making the entire clamping mechanism 100 more flexible.

[0058] In this embodiment, the force-applying portion 31 includes a pressure section 311 and an inclined section 312 connected to each other. The pressure section 311 is located on the side of the power section 32 facing away from the support assembly 10, and the extension direction of the pressure section 311 is the same as the extension direction of the power section 32. The end of the pressure section 311 away from the inclined section 312 extends toward the support position 1111 and is connected to the clamping member 40. The end of the inclined section 312 away from the pressure section 311 is connected to the power section 32 and is rotatably connected to the end of the support member 20 away from the support assembly 10. The angle between the extension direction of the inclined section 312 and the extension direction of the power section 32 is an acute angle. In this way, the distance between the pressure section 311 and the support assembly 10 is greater than the distance between the power section 32 and the support assembly 10, so that there is sufficient space between the pressure section 311 and the support assembly 10 to install the clamping member 40.

[0059] In this embodiment, the pressing member 40 is rotatably connected to the pressure section 311 of the force-applying portion 31. As a result, the pressing member 40 can swing under its own weight when the transmission arm 30 swings, and the pressing member 40 always faces the carrier assembly 10. Therefore, when the pressing member 40 presses the workpiece 600, it always abuts the workpiece 600 from the side of the pressing member 40 facing the carrier assembly 10. This helps improve the accuracy of the pressing member 40 in pressing the workpiece 600 and further enhances the holding force on the workpiece 600.

[0060] In this embodiment, the pressing member 40 is provided with a plurality of spaced-apart extrusion protrusions 41 on one side thereof facing the carrier assembly 10. The plurality of extrusion protrusions 41 reduce the contact area between the pressing member 40 and the workpiece 600, effectively preventing the contact area between the workpiece 600 and the pressing member 40 from being uneven, thereby affecting the pressing effect of the pressing member 40. In addition, the plurality of extrusion protrusions 41 compress the workpiece 600 from multiple points, thereby expanding the pressing area of the pressing member 40, thereby improving the stability of the pressing member 40 in pressing the workpiece 600.

[0061] Please refer again Figure 1 and Figure 2 In this embodiment, the bearing assembly 10 includes a bearing member 11, an assembly member 12 and a connecting frame 13. The bearing position 1111 is provided on the bearing member 11, and a spaced-apart avoidance hole 1121 and a through-hole 1122 are provided on one side of the bearing member 11. The through-hole 1122 is located on the side of the avoidance hole 1121 away from the bearing position 1111, and the hole wall of the avoidance hole 1121 close to the through-hole 1122 extends toward the through-hole 1122; the assembly member 12 is provided on the side of the bearing member 11 away from the bearing position 1111 and is arranged opposite to the avoidance hole 1121. The end of the support member 20 away from the force-applying portion 31 The support member 20 is provided through the avoidance hole 1121 and is rotatably connected to the assembly part 12. The avoidance hole 1121 is used to avoid the support member 20 when the transmission arm 30 drives the support member 20 to swing. The connecting frame 13 is provided on the side of the support member 11 away from the bearing position 1111 and is arranged directly opposite the through-hole 1122. The driving member 50 is provided on the connecting frame 13. The driving member 50 has an output shaft 51, which is provided through the through-hole 1122 and is rotatably connected to the end of the power part 32 away from the bearing position 1111. In this way, a portion of the support member 20 is accommodated in the avoidance hole 1121, and a portion of the driving member 50 is accommodated in the through-hole 1122, which is conducive to improving the compactness of the overall structure of the clamping mechanism 100 and reducing the size of the clamping mechanism 100.

[0062] In this embodiment, the carrier 11 includes a carrier plate 111 and a mounting block 112. The carrier position 1111 is provided on the carrier plate 111, and the mounting block 112 is mounted on one side of the carrier plate 111. The avoidance hole 1121 and the through hole 1122 are both provided on the mounting block 112. The assembly member 12 and the connecting frame 13 are both mounted on the mounting block 112. By arranging the carrier 11 to be formed by assembling the carrier plate 111 and the mounting block 112, it is convenient to process the various structural features of the carrier 11.

[0063] In some other embodiments, the carrier 11 may also be an integral structure, which is beneficial to improving the structural strength of the carrier 11. This embodiment of the present application does not provide a specific description of this.

[0064] In this embodiment, the output shaft 51 of the driving member 50 is provided with a connecting block 511, which is rotatably connected to the end of the power part 32 away from the bearing position 1111, thereby facilitating the rotatable connection between the output shaft 51 of the driving member 50 and the power part 32.

[0065] In this embodiment, the hole wall of the avoidance hole 1121 near the through hole 1122 has an inclined first limiting surface 1121a, and the first limiting surface 1121a is inclined toward the side of the supporting member 11 where the supporting position 1111 is provided, and the angle between the first limiting surface 1121a and the side of the supporting member 11 where the supporting position 1111 is provided is an acute angle. When the transmission arm 30 drives the support member 20 to swing toward the driving member 50, the first limiting surface 1121a abuts against the support member 20 to limit the swinging angle of the support member 20, which is beneficial to improve the accuracy of the driving member 50 driving the support member 20 and the transmission arm 30 to return.

[0066] In this embodiment, the mounting block 112 of the carrier 11 further defines an avoidance groove 1123, which is located on a side of the through-hole 1122 near the avoidance hole 1121 and communicates with the through-hole 1122. The avoidance groove 1123 allows the power unit 32 to move away from the bearing position 1111 when the output shaft 51 of the driver 50 drives the power unit 32 away from the bearing position 1111 and approaches the carrier 11. This allows the drive arm 30 to swing more freely when the driver 50 drives the drive arm 30 back to its original position, allowing the pressing member 40 to move further away from the bearing position 1111, thereby further reducing the probability of interference between the pressing member 40 and the workpiece 600 when the workpiece 600 is placed or retrieved.

[0067] In this embodiment, the wall of the avoidance groove 1123 near the avoidance hole 1121 has an inclined second limiting surface 1123a. The second limiting surface 1123a is inclined toward the side of the support member 11 provided with the bearing position 1111, and the angle between the second limiting surface 1123a and the side of the support member 11 provided with the bearing position 1111 is acute. When the driver 50 drives the end of the power unit 32 away from the bearing position 1111 to move into the avoidance groove 1123, the second limiting surface 1123a abuts the end of the power unit 32 away from the bearing position 1111 to limit the swing angle of the transmission arm 30, thereby facilitating improved accuracy in the driver 50 driving the support member 20 and the transmission arm 30 to return to their original positions.

[0068] In this embodiment, when the clamping member 40 compresses the workpiece 600, the contact point between the clamping member 40 and the workpiece 600, the connection point between the support member 20 and the force-applying portion 31, and the connection point between the driving member 50 and the power portion 32 are all on a straight line parallel to the carrier 11. This allows the transmission arm 30 to exert maximum leverage. The force applied by the driving member 50, after being amplified by the leverage of the transmission arm 30, is fully applied to the workpiece 600, thereby further increasing the pressure exerted by the clamping mechanism 100 on the workpiece 600. Furthermore, in this state, the output shaft 51 of the driving member 50 is perpendicular to the power portion 32, and the force output by the driving member 50 has no horizontal component, eliminating stress on the driving member 50 outside the vertical direction, thereby facilitating an increase in the service life of the driving member 50.

[0069] Please refer to Figure 3 , F1 is the magnitude of the force output by the driving member 50, F2 is the magnitude of the force of the clamping member 40 squeezing the workpiece 600, o1 is the connection point between the support member 20 and the assembly member 12, o2 is the connection point between the support member 20 and the force-applying part 31, L1 is the length of the force-applying part 31, L2 is the length of the power part 32, θ is the angle between the support member 20 and the vertical direction passing through the point o1, α is the angle between the power part 32 and the horizontal direction passing through the point o2, R is the swing radius of the support member 20, d is the length of the motion trajectory of the output shaft 51 of the driving member 50, that is, the stroke of the output shaft 51 of the driving member 50, a and b are respectively the distance between point o2 and the vertical direction passing through point o1 and the distance between point o2 and the motion trajectory of the output shaft 51 of the driving member 50 when the support member 20 is at a certain swing angle.

[0070] When the output shaft 51 of the driving member 50 moves in the vertical direction, a+b=L2. From the trigonometric function, we know that:

[0071] a=R×sinθ b=L2×cosα,

[0072]

[0073] According to the Pythagorean theorem:

[0074]

[0075] The inverse cosine function is:

[0076]

[0077] It can be seen from this that the greater the stroke of the output shaft 51 of the driving member 50 and the larger the angle α, the better the avoidance effect of the transmission arm 30 and the clamping member 40; when the stroke of the output shaft 51 of the driving member 50 is constant, the greater the swing radius R of the support member 20 and the larger the angle α, the better the avoidance effect of the transmission arm 30 and the clamping member 40; when the angle α and the angle θ are equal to 0 degrees, the transmission arm 30 exerts the maximum leverage, and the force F1 applied by the driving member 50 is increased by the leverage of the transmission arm 30 and becomes F2 and acts completely on the workpiece 600. At this time, the output shaft 51 of the driving member 50 is perpendicular to the power part 32, and the force F1 output by the driving member 50 has no component in the horizontal direction, which eliminates the stress of the driving member 50 outside the vertical direction, thereby helping to improve the service life of the driving member 50.

[0078] In this embodiment, the two ends of the support member 20 are respectively rotatably connected to the assembly member 12 and the end of the inclined section 312 close to the power part 32 through a pin shaft (not shown in the figure), the end of the power part 32 away from the bearing position 1111 is rotatably connected to the connecting block 511 through a pin shaft, and the clamping member 40 is rotatably connected to the end of the pressure section 311 away from the inclined section 312 through a pin shaft.

[0079] In this embodiment, there are two groups of clamping assemblies 2, which are symmetrically arranged on both sides of the support position 1111, thereby improving the stability of the clamping mechanism 100 in clamping the workpiece 600. In other embodiments, there may be three or more groups of clamping assemblies 2, with multiple groups of clamping assemblies 2 installed at intervals around the support position 1111, which is not specifically limited in this application.

[0080] In summary, the clamping mechanism 100 of the embodiment of the present application drives the transmission arm 30 to swing by setting a driving member 50, so that the transmission arm 30 drives the clamping member 40 to press the workpiece 600 on the bearing position 1111 set on the bearing assembly 10, and the transmission arm 30 is provided with a force-applying portion 31 and a power portion 32 connected thereto. An end of the force-applying portion 31 close to the power portion 32 is rotatably connected to the support member 20, and an end of the force-applying portion 31 away from the power portion 32 extends toward the bearing position 1111. An end of the power portion 32 away from the force-applying portion 31 is rotatably connected to the driving member 50. The length of the power portion 32 is greater than the length of the force-applying portion 31. When the clamping mechanism 100 clamps the workpiece 600, since the length of the power part 32 is greater than the length of the force-applying part 31, the transmission arm 30 is a force-saving lever, so that the pressure applied by the clamping member 40 to the workpiece 600 is greater than the force output by the driving member 50, thereby increasing the pressure of the clamping mechanism 100 to squeeze the workpiece 600 and enhancing the stability of the pressure on the workpiece 600; in addition, when the clamping member 40 clamps the workpiece 600, under the lever action of the transmission arm 30, the reaction force applied by the workpiece 600 to the clamping member 40 becomes smaller when it is transmitted to the driving member 50, which is beneficial to reduce the chance of damage to the driving member 50.

[0081] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present application is defined by the appended claims rather than the foregoing description, and all variations that come within the meaning and range of equivalents of the claims are intended to be embraced herein.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A clamping mechanism, characterized in that: include: A carrying assembly having a carrying position for carrying a workpiece; A clamping assembly, the clamping assembly includes a support member, a transmission arm, a clamping member and a driving member, the support member is arranged on the load-bearing assembly and is located on one side of the load-bearing position, the transmission arm includes a force-applying part and a power part connected to each other, the end of the force-applying part close to the power part is rotatably connected to the support member, the end of the force-applying part away from the power part extends toward the load-bearing position, the end of the power part away from the force-applying part is rotatably connected to the driving member, and the length of the power part is greater than the length of the force-applying part; the clamping member is arranged at one end of the force-applying part close to the load-bearing position, and the driving member is used to drive the transmission arm to swing, so that the transmission arm drives the clamping member to press the workpiece.

2. The pressing mechanism according to claim 1, wherein: One end of the support member is rotatably connected to the bearing assembly, and the other end of the support member is rotatably connected to an end of the force-applying portion away from the bearing position.

3. The pressing mechanism according to claim 2, wherein: The force-applying portion includes a pressure section and an inclined section connected to each other. The pressure section is located on the side of the power portion away from the load-bearing component, and the extension direction of the pressure section is the same as the extension direction of the power portion. One end of the pressure section away from the inclined section extends toward the load-bearing position and is connected to the clamping member. One end of the inclined section away from the pressure section is connected to the power portion and is rotatably connected to one end of the support member away from the load-bearing component. The angle between the extension direction of the inclined section and the extension direction of the power portion is an acute angle.

4. The pressing mechanism according to claim 2, wherein: The pressing member is rotatably connected to the force applying portion.

5. The pressing mechanism according to claim 2, wherein: A plurality of extrusion protrusions arranged at intervals are protruded from one side of the pressing member facing the bearing assembly.

6. The pressing mechanism according to claim 2, wherein: The bearing assembly includes: A bearing member, wherein the bearing position is provided on the bearing member, and a spaced-apart avoidance hole and a through-hole are provided on one side of the bearing member, wherein the through-hole is located on a side of the avoidance hole away from the bearing position, and the avoidance hole extends toward the through-hole from a hole wall close to the through-hole; An assembly part is provided on a side of the bearing part away from the bearing position, an end of the support part away from the force-applying part is passed through the avoidance hole and is rotatably connected to the assembly part, and the avoidance hole is used to avoid the support part when the transmission arm drives the support part to swing; The connecting frame is arranged on the side of the bearing member away from the bearing position, the driving member is arranged on the connecting frame, and the driving member has an output shaft, the output shaft is passed through the through hole and is rotatably connected to the end of the power part away from the bearing position.

7. The pressing mechanism according to claim 6, wherein: The avoidance hole has a first limiting surface arranged at an angle near the hole wall of the through hole, and the first limiting surface is inclined toward the side of the bearing member where the bearing position is provided, and the angle between the first limiting surface and the side of the bearing member where the bearing position is provided is an acute angle, and the first limiting surface is used to abut against the support member to limit the swing angle of the support member.

8. The pressing mechanism according to claim 6, wherein: The bearing member is further provided with an avoidance groove, which is located on a side of the through hole close to the avoidance hole and is communicated with the through hole.

9. The pressing mechanism according to claim 8, wherein: The groove wall of the avoidance groove close to the avoidance hole has a second limiting surface that is inclined, and the second limiting surface is inclined toward the side of the bearing member where the bearing position is provided, and the angle between the second limiting surface and the side of the bearing member where the bearing position is provided is an acute angle.

10. The pressing mechanism according to claim 1, wherein: The length of the power part is N times the length of the force-applying part, where N is a positive number greater than or equal to 1.5.

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