Material taking and placing device

Abstract

The utility model provides a material taking and placing device which comprises a mounting plate, a cam, a connecting rod assembly and a material taking and placing assembly, and the cam is pivoted to the mounting plate and is in transmission connection with a driving piece; the connecting rod assembly comprises a first connecting rod assembly, a third connecting rod and a fourth connecting rod, the first end of the first connecting rod assembly is connected to the cam, and the second end is pivoted to the third connecting rod; the first end of the third connecting rod is pivoted to the mounting plate, the second end is pivoted to the first end of the fourth connecting rod, and the second end of the fourth connecting rod is slidably connected to the mounting plate; the material taking and placing assembly is fixedly arranged at the first end of the fourth connecting rod. According to the material taking and placing device, the cam and the connecting rod assembly are matched to take and place materials, compared with the prior art, due to the fact that air pressure is not involved, the material taking and placing device is not affected by the air pressure, and the material taking and placing device moves stably; in the material taking and placing process, the cam continuously rotates in the same direction, the cam does not need to stop, the material taking speed and the material placing speed are increased, and then the working efficiency of the material taking and placing device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical manufacturing, in particular to a material taking and placing device. Background Art

[0002] In the non-standard automation industry, the demand for automation equipment such as bonding, assembly, and testing is increasing. In most automation equipment, material picking, transportation, and 90° rotation and unloading are required. Most of them are achieved by rotary cylinders or direct motor connections. The speed of rotary cylinders is limited, and the overall movement speed of the cylinder is unstable. Another way of using direct motor connection is that the motor moves repeatedly in both forward and reverse directions, and the speed is difficult to increase. In addition, this structure will reduce the service life of the motor. Utility Model Content

[0003] The utility model provides a material taking and discharging device, which is used to solve the technical problems in the prior art that a rotary cylinder is used to realize material taking and 90° rotating material discharging, the movement speed of the rotary cylinder is unstable; or a motor is directly connected, the motor moves forward and reverse repeatedly, the speed is difficult to increase, and the motor life is short.

[0004] The utility model provides a material taking and placing device, comprising:

[0005] Mounting plate;

[0006] A cam, pivotally connected to the mounting plate and transmission-connected to a driving member;

[0007] A connecting rod assembly, comprising a first connecting rod assembly, a third connecting rod and a fourth connecting rod, wherein the first end of the first connecting rod assembly is connected to the cam, and the second end is pivotally connected to the third connecting rod; the first end of the third connecting rod is pivotally connected to the mounting plate, and the second end is pivotally connected to the first end of the fourth connecting rod, and the second end of the fourth connecting rod is slidably connected to the mounting plate; and

[0008] A material taking and placing assembly is fixedly mounted on the first end of the fourth connecting rod;

[0009] The cam and the connecting rod assembly are configured as follows: the cam rotates to drive the first connecting rod assembly to drive the third connecting rod to swing relative to the mounting plate. During the swinging of the third connecting rod, the second end of the fourth connecting rod slides relative to the mounting plate, and the first end of the fourth connecting rod drives the material picking and placing assembly to flip.

[0010] Optionally, the material picking and placing assembly includes a clamp and a second rotating shaft, the first end of the second rotating shaft is connected to the clamp, the middle part of the second rotating shaft is pivoted to the second end of the third connecting rod, and the second end of the second rotating shaft is fixed to the first end of the fourth connecting rod; the second end of the fourth connecting rod is fixed with a fourth rotating shaft, and the fourth rotating shaft is slidably connected to the mounting plate.

[0011] Optionally, the clamp comprises a suction cup, a fixing plate and a connecting rod, the suction cups are multiple and are fixed to the fixing plate respectively, the first end of the connecting rod is fixed to the fixing plate, and the second end is fixed to the first end of the second rotating shaft;

[0012] And / or, the mounting plate is provided with a strip hole, the end of the fourth rotating shaft is pivotally connected to a third roller, and the third roller is slidably connected to the strip hole; or, the mounting plate is provided with a guide rail, the end of the fourth rotating shaft is pivotally connected to a slider, and the slider is slidably connected to the guide rail;

[0013] And / or, a fourth sleeve is fixedly provided on the second end of the third connecting rod, and the second rotating shaft is pivotally connected to the fourth sleeve.

[0014] Optionally, the first connecting rod assembly includes a first connecting rod and a second connecting rod, the middle portion of the first connecting rod is pivotally connected to the mounting plate, the first end of the first connecting rod is connected to the cam, and the second end is pivotally connected to the first end of the second connecting rod; the second end of the second connecting rod is pivotally connected to the middle portion of the third connecting rod.

[0015] Optionally, the first connecting rod comprises a first arm and a second arm arranged at an angle, the end of the first arm is connected to the cam, and the end of the second arm is pivotally connected to the first end of the second connecting rod; the corners of the first arm and the second arm are pivotally connected to the mounting plate;

[0016] And / or, the mounting plate is provided with a first shaft hole; a first rotating shaft is fixedly connected to the middle of the first connecting rod, and the first rotating shaft is pivotally connected to the first shaft hole;

[0017] And / or, a connecting block is fixedly provided at the middle position of the third connecting rod, and the connecting block includes a first sub-connecting block and a second sub-connecting block, the first sub-connecting block and the second sub-connecting block are arranged opposite to each other, and the first sub-connecting block and the second sub-connecting block are fixedly connected by screws; the second end of the second connecting rod is pivotally connected to the first sub-connecting block.

[0018] Optionally, a first joint is fixedly provided at the first end of the second connecting rod, and the first joint is pivotally connected to the second end of the first connecting rod; a second joint is fixedly provided at the second end of the second connecting rod, and the second joint is pivotally connected to the middle part of the third connecting rod.

[0019] Optionally, the cam has a groove, and the first end of the first connecting rod is connected to the groove.

[0020] Optionally, a first roller is provided at the first end of the first connecting rod, and the first roller is slidably connected to the groove.

[0021] Optionally, an opening portion is provided at the middle position of the third connecting rod, and the opening portion is provided with a second roller; a limiting plate is fixedly provided on the mounting plate, and the second roller is slidably connected to the surface of the limiting plate;

[0022] And / or, a third rotating shaft is fixedly provided at the first end of the third connecting rod, a third shaft hole is provided at the mounting plate, and the third rotating shaft is pivotally connected to the third shaft hole.

[0023] Optionally, the mounting plate is pivotally connected to a driving shaft, the cam is fixed to the driving shaft, and the driving shaft is transmission-connected to the driving member.

[0024] The utility model provides a material taking and placing device, which has at least the following beneficial technical effects:

[0025] The utility model provides a material taking and releasing device, which adopts a cam and a connecting rod assembly to cooperate. During the material taking and releasing process, the cam can continuously rotate in the same direction. During the rotation of the cam, it can drive the first connecting rod assembly to perform reciprocating linear motion, thereby driving the third connecting rod to swing. Since the first end of the fourth connecting rod is pivotally connected to the second end of the third connecting rod, under the swinging action of the third connecting rod, the first end of the fourth connecting rod will move synchronously with the second end of the third connecting rod, and the two will rotate relatively to each other. Moreover, since the second end of the fourth connecting rod is slidably connected to the mounting plate, the second end of the fourth connecting rod will synchronously slide relative to the mounting plate after being subjected to force, that is, during the swinging process of the third connecting rod, the fourth connecting rod not only slides relative to the mounting plate, but also rotates relative to the third connecting rod. Since the material taking and releasing assembly is fixedly arranged on the first end of the fourth connecting rod, during the rotation process of the fourth connecting rod, the material taking and releasing assembly is driven to flip synchronously. Therefore, the utility model provides a material picking and unloading device, which adopts a cam and a connecting rod assembly to pick and unload materials. Compared with the prior art, on the one hand, since air pressure is not involved, it will not be affected by air pressure, and the material picking and unloading device moves smoothly; on the other hand, during the material picking and unloading process, the cam rotates continuously in the same direction, and since the motor is not frequently rotated forward and reversed, the cam does not need to stop during the material picking and unloading process, and the speed of picking and unloading is improved, thereby improving the working efficiency of the material picking and unloading device; in addition, since the motor is not frequently rotated forward and reversed, the driving part connected to the cam moves in one direction, and no current shock will be generated, thereby reducing the wear and aging of the driving parts, thereby improving the service life of the driving parts, and thus improving the service life of the material picking and unloading device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 An axonometric diagram of a material taking and placing device provided in an embodiment of the utility model;

[0027] Figure 2 A schematic diagram of a material taking state of a material taking and placing device provided in an embodiment of the utility model;

[0028] Figure 3 A schematic diagram of the intermediate process state from material picking to material discharging of a material picking and discharging device provided in an embodiment of the utility model;

[0029] Figure 4 A schematic diagram of a material discharging state of a material discharging device provided in an embodiment of the utility model;

[0030] Figure 5 A schematic diagram of the structure of a material taking and placing device provided by an embodiment of the utility model from a first perspective;

[0031] Figure 6 A rear view schematic diagram of a material taking and placing device provided in an embodiment of the utility model;

[0032] Figure 7 A schematic diagram of the structure of a material taking and placing device from a second perspective provided in an embodiment of the utility model;

[0033] Description of reference numerals:

[0034] 10. Mounting plate; 11. Strip hole; 12. Limiting plate;

[0035] 20, cam; 201, driving shaft; 202, groove;

[0036] 30. connecting rod assembly; 310. first connecting rod; 312. first rotating shaft; 313. first fixing block; 320. second connecting rod; 321. first joint; 322. second joint; 330. third connecting rod; 331. third rotating shaft; 332. third fixing block; 333. fourth sleeve; 334. opening portion; 335. second roller; 336. connecting block; 340. fourth connecting rod; 341. second fixing block; 342. fourth rotating shaft; 343. fourth fixing block; 344. third roller;

[0037] 40. Material taking and placing assembly; 410. Clamp; 411. Fixing plate; 412. Connecting rod; 413. Suction cup; 420. Second rotating shaft; 421. Third sleeve. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned purpose, features and advantages of the present invention more obvious and easy to understand, the following is a brief description of the present invention in conjunction with the attached Figure 1 —7 The specific embodiments of the present invention are described in detail.

[0039] In the present invention, the terms "connection" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated structure.

[0040] In the present invention, terms such as "inside", "outside", "upper" and "lower" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0041] The utility model provides a material taking and placing device, see attached Figure 1 The material taking and releasing device includes a mounting plate 10, a cam 20, a connecting rod assembly 30 and a material taking and releasing assembly 40, the cam 20 is pivoted to the mounting plate 10 and is transmission-connected with a driving member; the connecting rod assembly 30 includes a first connecting rod assembly, a third connecting rod 330 and a fourth connecting rod 340, the first end of the first connecting rod assembly is connected to the cam 20, and the second end is pivoted to the third connecting rod 330; the first end of the third connecting rod 330 is pivoted to the mounting plate 10, the second end is pivoted to the first end of the fourth connecting rod 340, and the second end of the fourth connecting rod 340 is slidably connected to the mounting plate 10; the material taking and releasing assembly 40 is fixedly arranged at the first end of the fourth connecting rod 340 for conveying products; the cam 20 and the connecting rod assembly 30 are configured as follows: the cam 20 rotates, driving the first connecting rod assembly to drive the third connecting rod 330 to swing relative to the mounting plate 10, during the swinging process of the third connecting rod 330, the second end of the fourth connecting rod 340 slides relative to the mounting plate 10, and the first end of the fourth connecting rod 340 drives the material taking and releasing assembly 40 to flip.

[0042] It should be noted that the working principle of the embodiment of the utility model is shown in the attached Figure 2 - Figure 4 The cam 20 rotates, driving the first connecting rod assembly to drive the third connecting rod 330 to swing along the second direction relative to the mounting plate 10. During the swinging process of the third connecting rod 330, the second end of the fourth connecting rod 340 slides along the first direction relative to the mounting plate 10, and the first end of the fourth connecting rod 340 swings along the second direction relative to the mounting plate 10, thereby driving the material picking and placing assembly 40 to flip along the second direction.

[0043] It should be noted that in the prior art, some use rotating cylinders to achieve the action of picking up and discharging materials. Since the air pressure is easily affected by the pressure system, if the air pressure drops, the action of the cylinder will also change, resulting in unstable fluctuations in the movement speed of the cylinder. In addition, in the prior art, there is also a direct motor connection, which realizes the action of picking up and discharging materials by frequently rotating the motor forward and reverse. During the process of forward and reverse control of the motor, the current suddenly changes direction, causing an impact force to be generated in the axial direction of the motor, resulting in unstable operation; since each brake and reverse of the motor will generate current shocks, the wear and aging of the motor parts are accelerated, reducing the life of the motor; in the process of the motor changing from forward to reverse, the motor needs to be decelerated and stopped and then reversed, resulting in a long interval between picking up and discharging materials, that is, slow speed.

[0044] See attached Figure 2 - Figure 4 The working principle of the material taking and discharging device provided by the embodiment of the utility model is as follows: the cam 20 and the connecting rod assembly 30 are matched, and during the material taking and discharging process, the cam 20 can continuously rotate in the same direction (for example, clockwise, such as Figure 2 During the rotation of the cam 20, the first connecting rod assembly 30 can be driven to perform reciprocating linear motion (the motion trajectory is a straight line or an arc, as shown in the direction of D in the figure), thereby driving the third connecting rod 330 to swing (for example, clockwise or counterclockwise, as shown in the direction of A in the figure). Figure 2 In the direction shown at E in the middle), since the first end of the fourth connecting rod 340 is connected to the second end of the third connecting rod 330 (as shown in FIG. Figure 2 Therefore, under the swinging action of the third link 330, the first end of the fourth link 340 will move synchronously with the second end of the third link 330, and the two will rotate relative to each other; and because the second end of the fourth link 340 is slidably connected to the mounting plate 10, the second end of the fourth link 340 will slide relative to the mounting plate 10 after being subjected to force (such as Figure 2 In other words, during the swinging process of the third connecting rod 330, the fourth connecting rod 340 not only slides relative to the mounting plate 10, but also rotates relative to the third connecting rod 330. Since the material picking and placing assembly 40 is fixed to the first end of the fourth connecting rod 340, during the rotation process of the fourth connecting rod 340, the material picking and placing assembly 40 is driven to turn over synchronously (such as Figure 2 In summary, the material taking and discharging device provided by the embodiment of the utility model adopts the cam 20 and the connecting rod assembly 30 to perform material taking and discharging. Compared with the prior art, on the one hand, since air pressure is not involved, the material taking and discharging device will not be affected by air pressure, and the movement of the material taking and discharging device is stable; on the other hand, during the material taking and discharging process, the cam 20 rotates continuously in the same direction, and since the motor is not frequently rotated forward and reversely, the cam 20 does not need to stop during the material taking and discharging process, and the speed of taking and discharging is improved, thereby improving the working efficiency of the material taking and discharging device; in addition, since the motor is not frequently rotated forward and reversely, the driving member connected to the cam 20 moves in one direction, and no current shock is generated, which reduces the wear and aging of the driving member components, thereby improving the service life of the driving member, and then improving the service life of the material taking and discharging device.

[0045] It should be noted that the shape of each connecting rod in the connecting rod assembly 30 is not limited, and can be rod-shaped, plate-shaped or block-shaped.

[0046] It should be noted that in the embodiment of the present invention, the flipping angle of the material taking and placing component 40 is taken as 90° for example, and of course it can also be other angles for taking and placing materials, which is not limited here.

[0047] In the embodiment of the utility model, the driving member is a motor.

[0048] See attached Figure 1 In the embodiment of the utility model, the material picking and placing assembly 40 includes a clamp 410 and a second rotating shaft 420, the first end of the second rotating shaft 420 is connected to the clamp 410, the middle part of the second rotating shaft 420 is pivotally connected to the second end of the third connecting rod 330, and the second end of the second rotating shaft 420 is fixed to the first end of the fourth connecting rod 340; the second end of the fourth connecting rod 340 is fixed with a fourth rotating shaft 342, and the fourth rotating shaft 342 is slidably connected to the mounting plate 10.

[0049] It should be noted that, see Appendix Figure 2 In the process of taking and releasing materials, the cam 20 rotates continuously in the same direction, driving the first connecting rod assembly to drive the third connecting rod 330 to swing relative to the mounting plate 10. In the process of the third connecting rod 330 swinging, since the first end of the second rotating shaft 420 is connected to the clamp 410, the middle part of the second rotating shaft 420 is pivoted to the second end of the third connecting rod 330 (such as the upper end in the figure), and the second end of the second rotating shaft 420 is fixed to the first end of the fourth connecting rod 340, that is, the first end of the fourth connecting rod 340 is pivoted to the third connecting rod 330 through the second rotating shaft 420. Therefore, under the swinging action of the third connecting rod 330, the second rotating shaft 420 0 and the fourth connecting rod 340 will move synchronously with the second end of the third connecting rod 330 and rotate relatively at the same time; and since the second end of the fourth connecting rod 340 is slidably connected to the mounting plate 10 via the fourth rotating shaft 342, the fourth rotating shaft 342 slides relative to the mounting plate 10; that is, during the swinging process of the third connecting rod 330, the fourth connecting rod 340 not only slides relative to the mounting plate 10 via the fourth rotating shaft 342, but also rotates relative to the third connecting rod 330 via the second rotating shaft 420. Since the material picking and placing assembly 40 is fixedly arranged on the second rotating shaft 420, during the rotation process of the second rotating shaft 420, the material picking and placing assembly 40 is driven to flip synchronously.

[0050] It should be noted that the type of the clamp 410 is not limited, and it can be a mechanical clamping structure or a vacuum clamping structure.

[0051] See attached Figure 1 In the embodiment of the utility model, preferably, the clamp 410 includes a suction cup 413, a fixing plate 411 and a connecting rod 412. The suction cups 413 have a plurality of suction cups and are fixed to the fixing plate 411 respectively. The first end of the connecting rod 412 is fixed to the fixing plate 411, and the second end is fixed to the first end of the second rotating shaft 420. In this configuration, since the suction cup 413 is a flexible structure, it is prevented from scratching or scratching the surface of the product when taking the material.

[0052] See attached Figure 1In the embodiment of the utility model, the first end of the connecting rod 412 has a clamping seat, the clamping seat includes a first clamping arm and a second clamping arm fixed to the first end of the first clamping arm, the first clamping arm and the second clamping arm have a fourth shaft hole, the second rotating shaft 420 cooperates with the fourth shaft hole, the second end of the first clamping arm and the second end of the second clamping arm have a gap, and the second end of the first clamping arm and the second end of the second clamping arm are connected by screws or bolts. Such a configuration is convenient for disassembly.

[0053] See attached Figure 2 , Figure 5 and Figure 6 In one embodiment of the utility model, the mounting plate 10 is provided with a strip hole 11, and the end of the fourth rotating shaft 342 is pivotally connected with a third roller 343, and the third roller is slidably connected to the strip hole 11. In this way, the third roller 343 is arranged at the end of the fourth rotating shaft 342 to reduce the friction between the fourth rotating shaft 342 and the strip hole 11, so that the sliding connection between the fourth rotating shaft 342 and the strip hole 11 is smoother.

[0054] In another implementation of the present invention, the mounting plate 10 is provided with a guide rail, and a slider is pivotally connected to the end of the fourth rotating shaft 342 , and the slider is slidably connected to the guide rail.

[0055] See attached Figure 1 In the embodiment of the utility model, the second end of the third connecting rod 330 is fixed with a fourth sleeve 333, and the second rotating shaft 420 is pivotally connected to the fourth sleeve 333. Such a configuration increases the contact length between the third connecting rod 330 and the second rotating shaft 420, and prevents the second rotating shaft 420 from bending and deforming.

[0056] In the embodiment of the utility model, the third connecting rod 330 is a connecting plate.

[0057] In the embodiment of the utility model, fourth bearings are provided at both ends of the fourth sleeve 333, and the second shaft 420 is pivotally connected to the inner hole of the fourth bearing. Such arrangement reduces the friction between the second shaft 420 and the fourth sleeve 333, making the relative rotation between the two smoother.

[0058] See attached Figure 7 In the embodiment of the utility model, the second rotating shaft 420 is sleeved with a third sleeve 421, and the end surface of the third sleeve 421 is respectively in contact with the inner ring end surface of the fourth bearing and the end surface of the connecting rod 412. In this way, the third sleeve 421 plays a role in positioning and supporting the fourth bearing.

[0059] See attached Figure 1In this embodiment of the utility model, the first connecting rod assembly includes a first connecting rod 310 and a second connecting rod 320. The middle part of the first connecting rod 310 is pivoted to the mounting plate 10, the first end of the first connecting rod 310 is connected to the cam 20, and the second end of the first connecting rod 310 is pivoted to the first end of the second connecting rod 320; the second end of the second connecting rod 320 is pivoted to the middle part of the third connecting rod 330.

[0060] For this setting, see Appendix Figure 2 - Figure 4 , the cam 20 and the connecting rod assembly 30 are matched, and during the material taking and releasing process, the cam 20 can rotate continuously in the same direction (for example, clockwise, such as Figure 2 In the direction shown at A in the middle), during the rotation of the cam 20, the first end of the first connecting rod 310 (as shown in FIG. Figure 2 The upper end shown in FIG) is approximately oscillating up and down (as shown in FIG). Figure 2 The middle part of the first connecting rod 310 swings around the mounting plate 10 (in the direction shown at B in the figure); since the first end of the second connecting rod 320 is pivotally connected to the second end of the first connecting rod 310, during the swinging process of the second end of the first connecting rod 310 (as shown at B in the figure), the middle part of the first connecting rod 310 swings around the mounting plate 10 (in the clockwise direction); Figure 2 The second end of the second link 320 follows the second end of the first link 310 to move synchronously, and the two rotate relative to each other; since the second end of the second link 320 is pivotally connected to the middle of the third link 330, during the swinging process of the second end of the second link 320 (as shown in the direction of C in the middle), the second end of the second link 320 moves synchronously with the first link 310, and the two rotate relative to each other; Figure 2 The middle part of the third connecting rod 330 moves synchronously with the second end of the second connecting rod 320, and the two rotate relative to each other, and the first end of the third connecting rod 330 swings around the mounting plate 10 (as shown in the direction of D in the middle). Figure 2 direction as indicated by E in the figure).

[0061] See attached Figure 1 and Figure 2 In the embodiment of the utility model, the first connecting rod 310 includes a first arm and a second arm arranged at an angle, the end of the first arm is connected to the cam 20, and the end of the second arm is pivoted to the first end of the second connecting rod 320; the corner of the first arm and the second arm is pivoted to the mounting plate 10. In this way, during the rotation of the cam 20, the end of the first arm (such as Figure 2 The upper end shown in FIG) is approximately oscillating up and down (as shown in FIG). Figure 2 The first arm and the second arm swing around the mounting plate 10 at the corner, and the end of the second arm (as shown in FIG. Figure 2 The lower end shown in FIG) swings approximately left and right (as shown in FIG. Figure 2 In the direction shown at C in the middle), relative to a linear connecting rod, the first connecting rod 310 is arranged as a first arm and a second arm arranged at an angle, which can change the relative movement direction of the first end and the second end of the first connecting rod 310.

[0062] The first arm and the second arm may be arranged in an L-shape or a V-shape.

[0063] See attached Figure 1 In the embodiment of the utility model, the mounting plate 10 is provided with a first shaft hole; the middle of the first connecting rod 310 is fixedly connected with a first rotating shaft 312, and the first rotating shaft 312 is pivotally connected to the first shaft hole. It should be noted that the middle of the first connecting rod 310 refers to any position between the first end of the first connecting rod 310 and the second end of the first connecting rod 310.

[0064] In the embodiment of the utility model, a first bearing is disposed in the first shaft hole, and the first rotating shaft 312 is pivotally connected to the inner hole of the first bearing. This arrangement reduces the friction between the first rotating shaft 312 and the first shaft hole, making the relative rotation between the two smoother.

[0065] See attached Figure 1 In the embodiment of the utility model, a first hole is provided in the middle of the first connecting rod 310, and the first rotating shaft 312 cooperates with the first hole; the first connecting rod 310 is fixed with a first fixing block 313, one end of the first rotating shaft 312 has a chamfered portion, the chamfered portion of the first rotating shaft 312 abuts against the first fixing block 313, and the first rotating shaft 312 is connected to the first fixing block 313 by screws. In this way, the first connecting rod 310 and the first rotating shaft 312 adopt a split design, which is simple to manufacture.

[0066] See attached Figure 7 In the embodiment of the utility model, a connecting block 336 is fixedly arranged at the middle position of the third connecting rod 330, and the connecting block 336 includes a first sub-connecting block 3361 and a second sub-connecting block 3362, the first sub-connecting block 3361 and the second sub-connecting block 3362 are arranged opposite to each other, and the first sub-connecting block 3361 and the second sub-connecting block 3362 are fixedly connected by screws; the second end of the second connecting rod 320 is pivotally connected to the first sub-connecting block 3361. It should be noted that the middle position of the third connecting rod 330 refers to any position between the first end of the third connecting rod 330 and the second end of the third connecting rod 330. Such a configuration facilitates the connection between the second connecting rod 320 and the third connecting rod 330.

[0067] See attached Figure 2 In this embodiment of the utility model, a first joint 321 is fixedly provided at the first end of the second connecting rod 320 , and the first joint 321 is pivotally connected to the second end of the first connecting rod 310 ; a second joint 322 is fixedly provided at the second end of the second connecting rod 320 , and the second joint 322 is pivotally connected to the middle part of the third connecting rod 330 .

[0068] In the embodiment of the utility model, the first joint 321 and the second joint 322 are both fisheye joints.

[0069] In the embodiment of the utility model, the first joint 321 is sleeved with a first screw, and the first screw is threadedly connected to the internal threaded hole of the second end of the first connecting rod 310; the first screw is sleeved with a first sleeve, and the two ends of the first sleeve are respectively abutted against the end face of the first joint 321 and the end face of the first connecting rod 310; the second joint 322 is sleeved with a second screw, and the second screw is threadedly connected to the middle part of the third connecting rod 330; the second screw is sleeved with a second sleeve, and the two ends of the second sleeve are respectively abutted against the end face of the second joint 322 and the end face of the first sub-connecting block.

[0070] See attached Figure 2 In the embodiment of the utility model, the cam 20 has a groove 202 , and the first end of the first connecting rod 310 is connected to the groove 202 .

[0071] In the embodiment of the utility model, a first roller is provided at the first end of the first connecting rod 310, and the first roller is slidably connected to the groove 202. In this configuration, the first roller is added to the first end of the first connecting rod 310, so that the first connecting rod 310 and the cam 20 are rollingly connected, the friction force is reduced, and the movement of the first connecting rod 310 is smoother.

[0072] See attached Figure 4 and Figure 7 In the embodiment of the utility model, the middle position of the third connecting rod 330 is provided with an opening portion 334, and the opening portion 334 is provided with a second roller 335; the mounting plate 10 is fixed with a limiting plate 12, and the second roller 335 is slidably connected to the surface of the limiting plate 12. In this way, the limiting plate 12 provides support and limiting for the third connecting rod 330, and improves the structural stability of the connecting rod assembly 30.

[0073] See attached Figure 1 In the embodiment of the utility model, a third rotating shaft 331 is fixedly disposed at the first end of the third connecting rod 330 , a third shaft hole is disposed on the mounting plate 10 , and the third rotating shaft 331 is pivotally connected to the third shaft hole.

[0074] See attached Figure 1 In the embodiment of the utility model, the first end of the third connecting rod 330 is provided with a third hole, and the third rotating shaft 331 cooperates with the third hole; the third connecting rod 330 is fixed with a third fixing block 332, one end of the third rotating shaft 331 has a chamfered portion, the chamfered portion of the third rotating shaft 331 abuts against the third fixing block 332, and the third rotating shaft 331 and the third fixing block 332 are connected by screws. In this way, the third connecting rod 330 and the third rotating shaft 331 adopt a split design, which is simple to manufacture.

[0075] In the embodiment of the utility model, a third bearing is fixed in the third shaft hole, and the third rotating shaft 331 is pivotally connected to the inner hole of the third bearing. Such an arrangement reduces the friction between the third rotating shaft 331 and the third shaft hole, making the relative rotation between the two smoother.

[0076] See attached Figure 1 In the embodiment of the utility model, the mounting plate 10 is pivotally connected with the driving shaft 201, the cam 20 is fixedly mounted on the driving shaft 201, and the driving shaft 201 is transmission-connected to the driving member.

[0077] See attached Figure 7 In the embodiment of the utility model, the first end and the second end of the fourth connecting rod 340 are respectively provided with a second hole and a fourth hole, the second rotating shaft 420 cooperates with the second hole, and the fourth rotating shaft 342 cooperates with the fourth hole; the fourth connecting rod 340 is fixed with a second fixing block 341 and a fourth fixing block 343, one end of the second rotating shaft 420 has a chamfered portion, the chamfered portion of the second rotating shaft 420 abuts against the second fixing block 341, and the second rotating shaft 420 and the second fixing block 341 are connected by screws; one end of the fourth rotating shaft 342 has a chamfered portion, the chamfered portion of the fourth rotating shaft 342 abuts against the fourth fixing block 343, and the fourth rotating shaft 342 and the fourth fixing block 343 are connected by screws. In this way, the friction between the second rotating shaft 420 and the second hole is reduced, so that the relative rotation between the two is smoother; the friction between the fourth rotating shaft 342 and the fourth hole is reduced, so that the relative rotation between the two is smoother.

[0078] Although the utility model is disclosed as above, the utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the scope defined by the claims.

Claims

1. A material taking and placing device, characterized in that: include: Mounting plate (10); A cam (20) is pivotally connected to the mounting plate (10) and is transmission-connected to a driving member; A connecting rod assembly (30), comprising a first connecting rod assembly, a third connecting rod (330) and a fourth connecting rod (340), wherein the first end of the first connecting rod assembly is connected to the cam (20), and the second end is pivotally connected to the third connecting rod (330); the first end of the third connecting rod (330) is pivotally connected to the mounting plate (10), and the second end is pivotally connected to the first end of the fourth connecting rod (340), and the second end of the fourth connecting rod (340) is slidably connected to the mounting plate (10); and, A material taking and placing assembly (40) is fixedly mounted on the first end of the fourth connecting rod (340); The cam (20) and the connecting rod assembly (30) are configured as follows: the cam (20) rotates to drive the first connecting rod assembly to drive the third connecting rod (330) to swing relative to the mounting plate (10); during the swinging of the third connecting rod (330), the second end of the fourth connecting rod (340) slides relative to the mounting plate (10), and the first end of the fourth connecting rod (340) drives the material picking and placing assembly (40) to flip.

2. The material taking and placing device according to claim 1, characterized in that: The material picking and placing assembly (40) includes a clamp (410) and a second rotating shaft (420), wherein the first end of the second rotating shaft (420) is connected to the clamp (410), the middle part of the second rotating shaft (420) is pivotally connected to the second end of the third connecting rod (330), and the second end of the second rotating shaft (420) is fixed to the first end of the fourth connecting rod (340); the second end of the fourth connecting rod (340) is fixed with a fourth rotating shaft (342), and the fourth rotating shaft (342) is slidably connected to the mounting plate (10).

3. The material taking and placing device according to claim 2, characterized in that: The clamp (410) comprises a suction cup (413), a fixing plate (411) and a connecting rod (412); the suction cup (413) has a plurality of suction cups and is respectively fixed to the fixing plate (411); a first end of the connecting rod (412) is fixed to the fixing plate (411), and a second end is fixed to the first end of the second rotating shaft (420); And / or, the mounting plate (10) is provided with a strip hole (11), the end of the fourth rotating shaft (342) is pivotally connected to a third roller (344), and the third roller (344) is slidably connected to the strip hole (11); or, the mounting plate (10) is provided with a guide rail, the end of the fourth rotating shaft (342) is pivotally connected to a slider, and the slider is slidably connected to the guide rail; And / or, a fourth sleeve (333) is fixedly provided on the second end of the third connecting rod (330), and the second rotating shaft (420) is pivotally connected to the fourth sleeve (333).

4. The material handling device according to any one of claims 1 to 3, characterized in that: The first connecting rod assembly includes a first connecting rod (310) and a second connecting rod (320), wherein the middle portion of the first connecting rod (310) is pivotally connected to the mounting plate (10), the first end of the first connecting rod (310) is connected to the cam (20), and the second end is pivotally connected to the first end of the second connecting rod (320); the second end of the second connecting rod (320) is pivotally connected to the middle portion of the third connecting rod (330).

5. The material taking and placing device according to claim 4, characterized in that: The first connecting rod (310) comprises a first arm and a second arm arranged at an angle, the end of the first arm is connected to the cam (20), and the end of the second arm is pivotally connected to the first end of the second connecting rod (320); the corners of the first arm and the second arm are pivotally connected to the mounting plate (10); And / or, the mounting plate (10) is provided with a first shaft hole; a first rotating shaft (312) is fixedly connected to the middle of the first connecting rod (310), and the first rotating shaft (312) is pivotally connected to the first shaft hole; And / or, a connecting block (336) is fixedly provided at the middle position of the third connecting rod (330), and the connecting block (336) includes a first sub-connecting block and a second sub-connecting block, the first sub-connecting block and the second sub-connecting block are arranged relative to each other, and the first sub-connecting block and the second sub-connecting block are fixedly connected by screws; the second end of the second connecting rod (320) is pivotally connected to the first sub-connecting block.

6. The material taking and placing device according to claim 5, characterized in that: A first joint (321) is fixedly provided at the first end of the second connecting rod (320), and the first joint (321) is pivotally connected to the second end of the first connecting rod (310); a second joint (322) is fixedly provided at the second end of the second connecting rod (320), and the second joint (322) is pivotally connected to the first sub-connecting block.

7. The material taking and placing device according to claim 4, characterized in that: The cam (20) has a groove (202), and the first end of the first connecting rod (310) is connected to the groove (202).

8. The material taking and placing device according to claim 7, characterized in that: A first roller is provided at the first end of the first connecting rod (310), and the first roller is slidably connected to the groove (202).

9. The material handling device according to any one of claims 1 to 3, characterized in that: An opening portion (334) is provided at a middle position of the third connecting rod (330), and a second roller (335) is provided on the opening portion (334); a limiting plate (12) is fixedly provided on the mounting plate (10), and the second roller (335) is slidably connected to the surface of the limiting plate (12); And / or, a third rotating shaft (331) is fixedly provided at the first end of the third connecting rod (330), the mounting plate (10) is provided with a third shaft hole, and the third rotating shaft (331) is pivotally connected to the third shaft hole.

10. The material taking and placing device according to claim 1, characterized in that: The mounting plate (10) is pivotally connected to a driving shaft (201), the cam (20) is fixedly arranged on the driving shaft (201), and the driving shaft (201) is transmission-connected to the driving member.

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