Limiting mechanism and carrying tool
By designing a limiting mechanism for workpieces and using the mechanical dead point principle to achieve accurate positioning, the problems of complex operation and long-term inflation of the cylinder in the prior art are solved, which improves processing efficiency and reduces costs.
Patent Information
- Application Number
- CN202311123267.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-31
- Publication Date
- 2025-02-28
AI Technical Summary
During product processing, the prior art requires external cylinders to be positioned, resulting in complex operation and the cylinders always need to be inflatable, affecting efficiency.
A limiting mechanism is designed, including a support seat, a first movable arm and a second movable arm, so as to realize accurate positioning of the workpiece through the mechanical dead point principle, and reduce the use of positioning cylinders in subsequent processes.
The accurate positioning of workpieces is achieved, the operation process is simplified, the dependence of subsequent processes on the positioning cylinders is reduced, and the cost is reduced.
Smart Images
Figure CN119527831A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of intelligent equipment, and in particular to a limiting mechanism and a carrier. Background Art
[0002] When the product moves on the conveyor chain, it will move with the product pallet. In order to ensure the position accuracy of the subsequent products, it is necessary to set up an additional cylinder. During the processing, the product is positioned and reprocessed by an external cylinder. During the processing of the product, the cylinder needs to be inflated and in working condition at all times. In this way, during processing, it is necessary to operate the cylinder and the equipment required for processing, which is complicated. Summary of the invention
[0003] The object of the present invention is to provide a limiting mechanism and a carrier which are easy to operate.
[0004] In order to achieve the above purpose, the following technical solutions are adopted:
[0005] A limiting mechanism, comprising a support seat, a first movable arm and a second movable arm; the support seat at least comprises a first supporting portion and a second supporting portion, the first movable arm is movably connected to the first supporting portion, the second movable arm is movably connected to the second supporting portion, in the pressing direction of the limiting mechanism, the first movable arm can move relative to the support seat, the second movable arm can move relative to the support seat, one end of the second movable arm comprises a workpiece abutting portion, the other end of the second movable arm is movably connected to the first movable arm, and the first movable arm can drive the second movable arm to move;
[0006] The limiting mechanism has at least a first working state and a second working state, and it is defined that in the first working state, along the pressing direction, the distance between the abutting portion and the bottom of the support seat is a first distance, and in the second working state, the distance between the abutting portion and the bottom of the support seat is a second distance, and the first distance is smaller than the second distance;
[0007] In the first working state, the first movable arm is tilted, and the first movable arm has a third end relatively close to the second movable arm and a fourth end relatively far away from the second movable arm, and along the clamping direction, the height of the third end is greater than the height of the fourth end.
[0008] In order to achieve the above purpose, the following technical solutions are adopted:
[0009] A vehicle comprises a base and a positioning platform, wherein the positioning platform is supported by the base. The vehicle comprises a limiting mechanism according to the above technical solution, wherein a supporting base of the limiting mechanism is fixedly arranged with the positioning platform.
[0010] In this way, when the first movable arm and the second movable arm are in motion and in the first working state, the workpiece abutment portion can be used to abut against the workpiece to be positioned to keep its position unchanged. Since in the first working state, the first movable arm is inclined, and along the clamping direction, the height of the third end is greater than the height of the fourth end. In this way, in the first working state, the first movable arm always gives the second movable arm a downward force, so that the second movable arm is subjected to abutment pressure on the workpiece. In this way, the limiting mechanism can be used for accurate positioning of the workpiece, so that in the first working state, the workpiece to be positioned is always in a clamping state. When it is used for subsequent multiple processing steps, due to its clamping characteristics, the use of positioning cylinders in other subsequent processes is reduced, thereby simplifying the operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 A schematic structural diagram of an implementation method of a limiting mechanism;
[0012] Figure 2 for Figure 1 Schematic side view of
[0013] Figure 3 for Figure 1 A schematic diagram of another working state of;
[0014] Figure 4 A structural schematic diagram of an implementation method of a support base;
[0015] Figure 5 A schematic structural diagram of an implementation method of a pressing arm;
[0016] Figure 6 A structural schematic diagram of another implementation of the limiting mechanism;
[0017] Figure 7 for Figure 6 A schematic diagram of another working state of the limiting mechanism;
[0018] Figure 8 A schematic structural diagram of an implementation method of a vehicle;
[0019] Fig. 9 It is a schematic diagram of the assembly structure of the positioning platform and the limiting mechanism;
[0020] Fig.10 A schematic diagram of an implementation method of a processing production line;
[0021] Fig.11 It is a schematic diagram of the assembly of the first driving mechanism and the carrier;
[0022] Fig.12is a schematic diagram of a working state of the first driving mechanism and the limiting mechanism;
[0023] Fig.13 It is a schematic diagram of another working state of the first driving mechanism and the limiting mechanism.
[0024] Wherein: limiting mechanism 10, 10'; support seat 11, first supporting part 111, second supporting part 112, third supporting part 113, supporting surface 1131; first movable arm 12, second connecting hole 121, third end 122, fourth end 123; second movable arm 13, workpiece abutting part 131, pressing arm 132, first connecting arm 133, first connecting hole 1331, first end 134, second end 135, first hole 136, second hole 137; first distance D1, second distance D2; elastic member 14; supporting arm 15, bottom supporting part 151; second connecting arm 16; first limiting pin 17, second limiting pin 18;
[0025] Carrying vehicle 20; base 21, positioning platform 22;
[0026] Processing production line 30; loading station 301, processing station 302, unloading station 303; conveyor chain 304, first drive mechanism 305, action block 306, support column 309, loading robot 307, unloading robot 308. DETAILED DESCRIPTION
[0027] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. It should be understood that the following is only for illustration and not for limiting the present invention.
[0028] Reference Figure 1-Figure 5 , Figure 1-Figure 5 The structure of a limiting mechanism 10 is shown schematically, wherein Figure 2 is a schematic diagram of the limiting mechanism in the first working state, Figure 3 It is a schematic diagram of the limiting mechanism in the second working state.
[0029] The limiting mechanism includes a support seat 11, a first movable arm 12 and a second movable arm 13; the support seat 11 has at least a first supporting portion 111 and a second supporting portion 112, the first movable arm 12 is movably connected to the first supporting portion 111, and the second movable arm 13 is movably connected to the second supporting portion 112, in the clamping direction of the limiting mechanism, the first movable arm 12 can move relative to the support seat 11, and the second movable arm 13 can move relative to the support seat 11, the first end 134 of the second movable arm 13 has a workpiece abutment portion 131, and the second end 135 of the second movable arm 13 is movably connected to the first movable arm 12, and the first movable arm 12 can drive the second movable arm 13 to move; wherein the workpiece abutment portion can be a part of the bottom of the second movable arm, or it can be all of it, and its main function is to be used against the workpiece to be positioned.
[0030] The limiting mechanism 10 has at least a first working state and a second working state, and is defined as follows: in the first working state, along the clamping direction H, the distance between the workpiece abutting portion 131 and the bottom of the support seat 11 is a first distance D1, and in the second working state, the distance between the workpiece abutting portion 131 and the bottom of the support seat 11 is a second distance D2, and the first distance D1 is smaller than the second distance D2;
[0031] In the first working state, the first movable arm 12 is tilted, and the first movable arm 12 has a third end 122 relatively close to the second movable arm 13 and a fourth end 123 relatively far away from the second movable arm 13. Along the clamping direction, the height of the third end 122 is greater than the height of the fourth end 123.
[0032] The limiting mechanism has a first working state and a second working state, the first working state is a clamping state, and the second working state is a loosening state. In this way, when the first movable arm 12 and the second movable arm 13 are in action and in the first working state, the workpiece abutting portion 131 can be used to abut against the workpiece to be positioned to keep its position unchanged. Since in the first working state, the first movable arm 12 is tilted, and along the clamping direction, the height of the third end 122 is greater than the height of the fourth end 123. In this way, in the first working state, the first movable arm 12 always gives the second movable arm 13 a downward force, so that the second movable arm 13 is subjected to abutting pressure on the workpiece. In this way, the limiting mechanism can be used for positioning the workpiece, so that in the first working state, the workpiece to be positioned is always in a clamping state. When it is used for subsequent multiple processing steps, due to its clamping characteristics, the use of positioning cylinders in other subsequent processes is reduced, thereby reducing costs. When the first movable arm 12 and the second movable arm 13 are in motion and in the second working state, the workpiece abutment portion 131 can leave the workpiece to be positioned, so that the workpiece can be displaced without restriction.
[0033] The support seat 11 has a third support portion 113. In the clamping direction, the height of the third support portion 113 is lower than the first support portion 111. In the first working state, there is a gap between the third support portion 113 and the first movable arm 12. Since there is a gap between the third support portion 113 and the first movable arm 12 in the first working state, when the limiting mechanism is switched to the second working state, the first movable arm 12 has space to move, so as to facilitate the second movable arm 13 to move up and release the restriction on the workpiece.
[0034] In addition, in the second working state, a distance may be left between the third support portion 113 and the first movable arm 12, so that the first movable arm 12 will be relatively free during the action, so that the force on the second movable arm 13 is relatively simple, and during the limiting and unlocking process, the pressure between the second movable arm 13 and the workpiece to be limited will not be too great to be unlocked.
[0035] Of course, as other specific implementations, refer to Figure 4 The support seat 11 has a third support portion 113. In the pressing direction, the height of the third support portion 113 is lower than that of the first support portion 111. The third support portion 113 has a support surface 1131. The support surface 1131 has an inclination. In the first working state, at least part of the first movable arm 12 is located on the support surface 1131, and the first movable arm 12 is tilted. The support surface 1131 has a first side and a second side opposite to each other. The first side faces the second movable arm 13, and the second side faces away from the second movable arm 13. The distance between the first side and the bottom of the support seat 11 is greater than the distance between the second side and the bottom of the support seat 11. In the second working state, at least part of the first movable arm 12 is located on the support surface 1131, and the part of the first movable arm 12 located on the support surface 1131 may be different in the first working state and the second working state. In this embodiment, a support is given to the first movable arm 12 by the third support portion 113, which is beneficial to the movement of the first movable arm 12.
[0036] Combined with reference Figure 1 and Figure 5 The second movable arm 13 has a pressing arm 132 and a first connecting arm 133, the pressing arm 132 and the first connecting arm 133 are movably connected, the first connecting arm 133 is movably connected to the first movable arm 12, and the pressing arm 132 has a workpiece abutting portion 131. The second movable arm 13 has the pressing arm 132 and the first connecting arm 133, which makes the action process simple and convenient.
[0037] Furthermore, the pressing arm 132 has a first hole 136 and a second hole 137, and the limiting mechanism has a first limiting pin 17, the first limiting pin 17 is at least partially located in the first hole 136, and the first limiting pin 17 is fixed or limited to the support seat 11, so that the second movable arm 13 can rotate with the first limiting pin 17 as the rotation center.
[0038] The second hole 137 is a non-circular hole, and the limiting mechanism has a second limiting pin 18. At least a portion of the second limiting pin 18 is located in the second hole 137, and at least a portion of the second limiting pin 18 is located in the first connecting hole 1331 of the first connecting arm 133. In this way, the pressing arm 132 and the first connecting arm 133 can be connected through the second limiting pin 18, and because the first movable arm 12 will drive the second movable arm 13 to move during the action, in order to facilitate the movement of the second movable arm 13, the second hole 137 is set to be a non-circular hole, specifically an elliptical hole. In this way, the second limiting pin 18 has space to move in the second hole 137, which is beneficial to the lifting of the pressing arm 132.
[0039] Return to reference Figure 1 The limiting mechanism includes a support arm 15, which is movably connected to the first movable arm 12. The support arm 15 is arranged non-parallel to the bottom plane of the support seat 11, and the support arm 15 is used to cooperate with an external force to provide a force in a clamping direction. When there is a limit requirement, the support arm 15 gives the first movable arm 12 a downward force, so that the height of the fourth end 123 of the first movable arm 12 in the clamping direction is lower than the third end 122 of the first movable arm 12, so that the limiting mechanism can be used to clamp the workpiece to be positioned. When there is a need to unlock, the support arm 15, for example, drives the fourth end 123 of the first movable arm 12 to move up and the third end 122 to move down under the action of an external force, so that the second movable arm 13 releases the workpiece to be positioned.
[0040] The limiting mechanism may further include an elastic member 14, the support arm 15 includes a bottom support portion 151, and the elastic member 14 is located between the bottom support portion 151 and the bottom of the support seat 11; the elastic member 14 can be used to reset the bottom support portion 151;
[0041] In the second working state, the elastic member 14 is in a compressed state;
[0042] In the first working state, the elastic member 14 is in a decompressed state.
[0043] Thus, when subjected to external force, the bottom support portion 151 compresses the elastic member 14, causing the support arm 15 to move upward. When the external force is removed, the resilience of the elastic member 14 pushes the bottom support portion 151 to move, driving the support arm 15 to move downward. The provision of the elastic member 14 is conducive to the reset of the support arm 15 and to the continuous locking state.
[0044] Furthermore, the limiting mechanism may also include a second connecting arm 16, which is movably connected to the first movable arm 12, and the second connecting arm 16 is movably connected to the support arm 15. The first movable arm 12 and the support arm 15 are connected by the second connecting arm 16, which facilitates the angle setting of the support arm 15, has lower requirements on the installation position of the support arm 15, and allows the support arm 15 to have more installation positions.
[0045] As another embodiment, refer to Figure 6 and Figure 7 , Figure 6 The limiting mechanism shown is in the second working state. In this embodiment, the limiting mechanism 10' includes a support seat 11, a first movable arm 12 and a second movable arm 13; the support seat 11 at least has a first supporting portion 111 and a second supporting portion 112, the first movable arm 12 is movably connected to the first supporting portion 111, and the second movable arm 13 is movably connected to the second supporting portion 112, in the clamping direction of the limiting mechanism, the first movable arm 12 can move relative to the support seat 11, the second movable arm 13 can move relative to the support seat 11, one end of the second movable arm 13 has a workpiece abutting portion 131, the other end of the second movable arm 13 is movably connected to the first movable arm 12, and the first movable arm 12 can drive the second movable arm 13 to move;
[0046] The limiting mechanism 10' has at least a first working state and a second working state, and is defined as follows: in the first working state, along the clamping direction, the distance between the workpiece abutting portion 131 and the bottom of the support seat 11 is a first distance D1, and in the second working state, the distance between the workpiece abutting portion 131 and the bottom of the support seat 11 is a second distance D2, and the first distance D1 is smaller than the second distance D2;
[0047] In the first working state, the first movable arm 12 is tilted, and the first movable arm 12 has a first end 134 relatively close to the second movable arm 13 and a second end 135 relatively far away from the second movable arm 13, and along the clamping direction, the height of the first end 134 is greater than the height of the second end 135.
[0048] The limiting mechanism has a first working state and a second working state, the first working state is a clamping state, and the second working state is a loosening state. In this way, when the first movable arm 12 and the second movable arm 13 are in action and in the first working state, the workpiece abutting portion 131 can be used to abut against the workpiece to be positioned to keep its position unchanged. Since in the first working state, the first movable arm 12 is tilted and along the clamping direction, the height of the first end 134 is greater than the height of the second end 135. In this way, in the first working state, the first movable arm 12 always gives the second movable arm 13 a downward force, so that the second movable arm 13 is subjected to a pressure against the workpiece. In this way, the limiting mechanism can be used for accurate positioning of the workpiece, so that in the first working state, the workpiece to be positioned is always in a clamping state. When it is used for subsequent multiple processing steps, due to its clamping characteristics, the use of positioning cylinders in other subsequent processes is reduced, thereby reducing costs. When the first movable arm 12 and the second movable arm 13 are in motion and in the second working state, the workpiece abutment portion 131 can leave the workpiece to be positioned, so that the workpiece can be displaced without restriction.
[0049] The second movable arm 13 has a first hole 136 and a second hole 137, and the limiting mechanism has a first limiting pin 17. The first limiting pin 17 is at least partially located in the first hole 136, and the first limiting pin 17 is fixed or limited to the support seat 11. In this way, the second movable arm 13 can rotate with the first limiting pin 17 as the rotation center.
[0050] The second hole 137 is a non-circular hole. The limiting mechanism has a second limiting pin 18. At least a portion of the second limiting pin 18 is located in the second hole 137. The inner diameter of the second hole 137 is larger than the outer diameter of the second limiting pin 18. At least a portion of the second limiting pin 18 is located in the second connecting hole 121 of the first movable arm 12. In this way, the first movable arm 12 and the second movable arm 13 can be connected through the second limiting pin 18. Since the first movable arm 12 will drive the second movable arm 13 to move during the operation, in order to facilitate the movement of the second movable arm 13, the second hole 137 is set as a non-circular hole, specifically an elliptical hole. In this way, the second limiting pin 18 has a movable space in the second hole 137, which is conducive to the lifting of the second movable arm 13. The second hole 137 can be an elliptical hole or a long hole, so that the second limiting pin 18 can slide a certain distance in the second hole 137.
[0051] More specifically, the limit mechanism may also have a reference Figure 1 The elastic member 14, the support arm 15 and other structures of the illustrated embodiment.
[0052] As other embodiments, refer to Figure 8 , Fig. 9 , Figure 8, Fig. 9 A carrier 20 is shown schematically, the carrier 20 includes a base 21, a positioning platform 22, and a limiting mechanism 10 / 10', the positioning platform 22 is supported on the base 21, and the support base 11 of the limiting mechanism is fixedly arranged with the positioning platform 22. The structure of the limiting mechanism is, for example, as described above. In this way, after the carrier 20 has the limiting mechanism, when the carrier 20 needs to carry a workpiece, the limiting mechanism can be used to limit the workpiece placed on the positioning platform 22, so that the position of the workpiece remains unchanged during the transfer process of the carrier 20, which is beneficial to the operation of the workpiece in subsequent processes.
[0053] In this embodiment, there may be multiple limiting mechanisms, for example, three are shown in the figure. Of course, the number of limiting mechanisms is not limited, and may be one, two, three, four, etc.
[0054] In this embodiment, the support seat 11 of the limiting mechanism is located on the positioning platform 22, and the support seat 11 and the positioning platform 22 are assembled and fixed, for example, by bolts.
[0055] As other embodiments, refer to Fig.10 , Fig.10 The schematic diagram shows a processing production line 30, which includes a conveyor chain 304, a carrier 20, and the carrier 20 is located on the conveyor chain 304; the carrier 20 has a base 21, a positioning platform 22 and a limiting mechanism 10 / 10', the positioning platform 22 is supported on the base 21, and the limiting mechanism includes a support base 11, a first movable arm 12 and a second movable arm 13; the support base 11 has at least a first supporting portion 111 and a second supporting portion 112, the first movable arm 12 is movably connected to the first supporting portion 111, and the second movable arm 13 is movably connected to the first supporting portion 111. The movable arm 13 is movably connected to the second supporting portion 112. In the pressing direction of the limiting mechanism, the first movable arm 12 can rotate relative to the supporting seat 11, and the second movable arm 13 can rotate relative to the supporting seat 11. The first end 134 of the second movable arm 13 has a workpiece abutting portion 131. The second end 135 of the second movable arm 13 is movably connected to the first movable arm 12. The first movable arm 12 can drive the second movable arm 13 to move. The supporting seat 11 of the limiting mechanism is fixed or limited to the positioning platform 22.
[0056] The limiting mechanism has at least a first working state and a second working state, and is defined as follows: in the first working state, along the clamping direction, the distance between the workpiece abutting portion 131 and the bottom of the support seat 11 is a first distance D1, and in the second working state, the distance between the workpiece abutting portion 131 and the bottom of the support seat 11 is a second distance D2, and the first distance D1 is smaller than the second distance D2; and in the first working state, along the clamping direction, the workpiece abutting portion 131 is lower than the second end portion 135, and in the second working state, the workpiece abutting portion 131 is higher than the second end portion 135;
[0057] The processing line 30 has at least a loading station 301 and a processing station 302. At the processing station 302, the limit mechanism is in a first working state, and at the loading station 301, the limit mechanism can be in a second working state. There can be more than two processing stations 302, which can be set according to actual conditions.
[0058] Since the processing production line 30 has a limiting mechanism, the first movable arm 12 of the limiting mechanism can rotate relative to the support seat 11, and the second movable arm 13 can also rotate relative to the support seat 11, and the limiting mechanism has a first working state and a second working state, the first working state is a clamping state, and the second working state is a loosening state. When the first movable arm 12 and the second movable arm 13 are in action, in the first working state, along the clamping direction, the workpiece abutment portion 131 is lower than the second end portion 135, and in the second working state, the workpiece abutment portion 131 is higher than the second end portion 135. In this way, when in the first working state, the workpiece abutment portion 131 can be used to abut against the workpiece to be positioned to keep its position unchanged, so that the limiting mechanism can be used for positioning the workpiece, so that in the first working state, the workpiece to be positioned is always in a clamping state. When it is used for subsequent multi-process processing, due to its clamping characteristics, the use of positioning cylinders in other subsequent processes is reduced, thereby reducing costs. When the first movable arm 12 and the second movable arm 13 are in motion and in the second working state, the workpiece abutment portion 131 can leave the workpiece to be positioned, so that the workpiece can be unrestricted and can be displaced. The limiting mechanism adopts the mechanical dead point principle, so that the limiting mechanism is in the first working state when the processing station 302 is in operation, reducing the use of cylinders when the processing station 302 is in operation, and reducing costs.
[0059] The processing production line 30 has a loading station 301 and an unloading station 303. At the loading station 301 and the unloading station 303, the limiting mechanism can be in the second working state, that is, the loading station 301 and the unloading station 303 can be used to release the limiting mechanism for placing or removing the workpiece to be positioned.
[0060] The loading station 301 has a first driving mechanism 305, and the unloading station 303 has a second driving mechanism. At the loading station 301, the driving member of the first driving mechanism 305 can drive the first movable arm 12 to move; at the unloading station 303, the driving member of the second driving mechanism can drive the first movable arm 12 to move.
[0061] The limiting mechanism includes a support arm 15, which is movably connected to the first movable arm 12. The support arm 15 is arranged non-parallel to the bottom plane of the support seat 11, and the support arm 15 is used to cooperate with an external force to provide a force in a clamping direction. When there is a limit requirement, the support arm 15 gives the first movable arm 12 a downward force, so that the height of the second end 135 of the first movable arm 12 in the clamping direction is lower than the first end 134 of the first movable arm 12, so that the limiting mechanism can be used to clamp the workpiece to be positioned. When there is a need to unlock, the support arm 15, for example, drives the second end 135 of the first movable arm 12 to move up and the first end 134 to move down under the action of an external force, so that the second movable arm 13 releases the workpiece to be positioned.
[0062] The first drive mechanism 305 and the second drive mechanism can be cylinders. At the loading station 301, the drive member of the first drive mechanism 305 is controlled to move, for example, the piston of the cylinder moves upward, pushing the support arm 15 to move upward, and the distance between the second movable arm 13 and the positioning platform 22 is large, which is used to place the workpiece. After the workpiece is placed on the positioning platform 22, the piston of the cylinder moves downward, the support arm 15 moves downward, and the second movable arm 13 abuts against the workpiece, which can achieve the position limit of the workpiece.
[0063] The specific structure of the limiting mechanism can also refer to the above implementation.
[0064] The limiting mechanism may further include an elastic member 14, the support arm 15 includes a bottom support portion 151, and the elastic member 14 is located between the bottom support portion 151 and the bottom of the support seat 11; the elastic member 14 can be used to reset the bottom support portion 151;
[0065] In the second working state, the elastic member 14 is in a compressed state;
[0066] In the first working state, the elastic member 14 is in a decompressed state.
[0067] Thus, when subjected to external force, the bottom support portion 151 compresses the elastic member 14, causing the support arm 15 to move upward. When the external force is removed, the resilience of the elastic member 14 pushes the bottom support portion 151 to move, driving the support arm 15 to move downward. The provision of the elastic member 14 is conducive to the reset of the support arm 15 and to the continuous locking state.
[0068] The processing production line 30 has a loading robot 307 and an unloading robot 308. The loading robot 307 is located at the loading station 301, and the unloading robot 308 is located at the unloading station 303. In this way, the processing production line 30 can be an automated production line, and loading and unloading are realized automatically, and the workpiece can also be realized automatically on the carrier 20, with a high degree of automation.
[0069] More specifically, the vehicle 20 has at least two limiting mechanisms, see Figure 11-13 The first driving mechanism 305 has an action block 306, the action block 306 and the driving member of the first driving mechanism 305 are fixed, the driving member of the first driving mechanism 305 can drive the action block 306 to move, the action block 306 has at least two support columns 309, each support column 309 corresponds to a limiting mechanism, and the support column 309 can drive the first movable arm 12 to move. In this way, more than two limiting mechanisms on the carrier 20 can be controlled by one driving mechanism, the control is simple, and the cost is low.
[0070] The above processing method comprises the following steps:
[0071] At the loading station 301, the first movable arm 12 of the limiting mechanism rotates relative to the support seat 11, driving the second movable arm 13 to rotate relative to the support seat 11, so that the distance between the workpiece abutment portion 131 of the second movable arm 13 and the positioning platform 22 becomes larger; that is, the workpiece abutment portion 131 of the second movable arm 13 moves in a direction away from the positioning platform 22;
[0072] Place the workpiece to be positioned on the positioning platform 22 with a limiting mechanism, so that the positioning workpiece is located below the workpiece abutment portion 131 of the second movable arm 13;
[0073] The first movable arm 12 of the limiting mechanism rotates relative to the support seat 11, driving the second movable arm 13 to rotate relative to the support seat 11, so that the distance between the workpiece abutting portion 131 and the positioning platform 22 becomes smaller, that is, the workpiece abutting portion 131 of the second movable arm 13 moves toward the direction close to the positioning platform 22, and the workpiece abutting portion 131 abuts against the workpiece to be positioned;
[0074] The positioning table 22 is transported to the processing station 302, and the workpiece to be positioned is in a positioning state.
[0075] The processing method further includes the following steps: at the loading station 301, the driving member of the first driving mechanism 305 is actuated to drive the support arm 15 to move upward, thereby driving the first movable arm 12 to rotate relative to the support seat 11;
[0076] After the workpiece abutting portion 131 abuts against the workpiece to be positioned, the driving member of the first driving mechanism 305 is reset, and the support arm 15 moves downward, driving the first movable arm 12 to rotate relative to the support base 11 .
[0077] The above processing method also includes the following steps: at the unloading station 303, the driving member of the second driving mechanism is actuated to drive the support arm 15 upward, driving the first movable arm 12 to rotate relative to the support seat 11, so that the workpiece abutment portion 131 and the workpiece to be positioned are not in contact, and the workpiece to be positioned is removed.
[0078] It should be noted that the above embodiments are only used to illustrate the present invention but not to limit the technical solutions described in the present invention, such as the directional definitions of "front", "back", "left", "right", "up" and "down". Although the present invention has been described in detail in this specification with reference to the above embodiments, it should be understood by those skilled in the art that the present invention can still be combined, modified or replaced by each other, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.
Claims
1. A limiting mechanism, characterized in that: The invention comprises a support seat, a first movable arm and a second movable arm; the support seat at least comprises a first supporting portion and a second supporting portion, the first movable arm is movably connected to the first supporting portion, the second movable arm is movably connected to the second supporting portion, in the pressing direction of the limiting mechanism, the first movable arm can move relative to the support seat, the second movable arm can move relative to the support seat, one end of the second movable arm comprises a workpiece abutting portion, the other end of the second movable arm is movably connected to the first movable arm, and the first movable arm can drive the second movable arm to move; The limiting mechanism has at least a first working state and a second working state, and it is defined that in the first working state, along the pressing direction, the distance between the abutting portion and the bottom of the support seat is a first distance, and in the second working state, the distance between the abutting portion and the bottom of the support seat is a second distance, and the first distance is smaller than the second distance; In the first working state, the first movable arm is tilted, and the first movable arm has a third end relatively close to the second movable arm and a fourth end relatively far away from the second movable arm, and along the clamping direction, the height of the third end is greater than the height of the fourth end.
2. The limiting mechanism according to claim 1, characterized in that: The support seat has a third support portion. In the pressing direction, the height of the third support portion is lower than that of the first support portion. In the first working state, a distance is left between the third support portion and the first movable arm.
3. The limiting mechanism according to claim 1 or 2, characterized in that: The second movable arm comprises a pressing arm and a first connecting arm, the pressing arm and the first connecting arm are movably connected, the first connecting arm is movably connected to the first movable arm, and the pressing arm comprises the workpiece abutting portion.
4. The limiting mechanism according to claim 3, characterized in that: The pressure arm has a first hole and a second hole, the limiting mechanism has a first limiting pin, the first limiting pin is at least partially located in the first hole, and the first limiting pin is fixed or limited to the support seat, the second hole is a non-circular hole, the limiting mechanism has a second limiting pin, at least partially located in the second hole, and at least partially located in the first connecting hole of the first connecting arm.
5. The limiting mechanism according to claim 1 or 2, characterized in that: The limiting mechanism includes a support arm, which is movably connected to the first movable arm, and is arranged non-parallel to the bottom plane of the support seat. The support arm is used to cooperate with external force to provide force in the clamping direction.
6. The limiting mechanism according to claim 5, characterized in that: The limiting mechanism has an elastic member, the supporting arm has a bottom supporting portion, and the elastic member is located between the bottom supporting portion and the bottom of the supporting seat; the elastic member can be used for resetting the bottom supporting portion; In the second working state, the elastic member is in a compressed state; In the first working state, the elastic member is in a decompressed state.
7. The limiting mechanism according to claim 5 or 6, characterized in that: The limiting mechanism has a second connecting arm, the second connecting arm is movably connected to the first movable arm, and the second connecting arm is movably connected to the supporting arm.
8. The limiting mechanism according to claim 1 or 2 or 5 or 6 or 7, characterized in that: The first movable arm is movably connected to the second movable arm, the second movable arm has a first hole and a second hole, the limiting mechanism has a first limiting pin, the first limiting pin is at least partially located in the first hole, and the first limiting pin is fixed or limited to the support seat, the second hole is a non-circular hole, the limiting mechanism has a second limiting pin, at least partially the second limiting pin is located in the second hole, the inner diameter of the second hole is larger than the outer diameter of the second limiting pin, and at least partially the second limiting pin is located in the second connecting hole of the first movable arm.
9. A vehicle, comprising a base and a positioning platform, wherein the positioning platform is supported on the base, characterized in that: It comprises a limiting mechanism according to any one of claims 1 to 8, wherein a support seat of the limiting mechanism is fixed or limitedly arranged with the positioning platform.