Material taking and placing device

Abstract

The invention relates to a material taking and placing device which comprises a taking and placing assembly, a first driving motor, an eccentric wheel, a driving wheel, a longitudinal moving assembly, a transverse moving assembly and a reset assembly. The transverse moving assembly is connected with the eccentric wheel through a first guiding piece. And the first guide piece has transverse displacement under the action of the eccentric wheel so as to drive the transverse moving assembly to have transverse displacement. The second reset spring is not only used for pressing the first guide part on the eccentric wheel, but also can realize self-locking at a specific position, and can effectively release elastic force after self-locking is released, so that the first guide part is restored to an initial state, and energy consumption is reduced; the movement of the picking and placing assembly in the transverse direction and the longitudinal direction is achieved through the first driving motor, the picking and placing efficiency is improved, the friction coefficient is small, the energy consumption is low, the power consumption can be effectively reduced through the elastic force of spring compression, the first driving motor can output the same movement state regardless of forward rotation or reverse rotation, and the control cost is reduced.

Description

Technical Field

[0001] The invention relates to the field of tooling, and in particular to a material taking and placing device. Background Art

[0002] In the process of transporting materials, the material picking and placing device usually needs to lift and move the materials horizontally to complete the transport, and the horizontal movement and the longitudinal movement are realized at the same time. The common means in the prior art is to use two driving motors with screws, one for horizontal movement and the other for longitudinal movement, and the longitudinal movement device is connected to the horizontal movement device. The two motors work simultaneously to achieve the lifting and horizontal movement of the materials. In the above structure, the cost of using two motors is relatively high, and in the reciprocating process of transport, the motor needs to be constantly reversed to achieve the reciprocating movement, that is, the control of the motor also has high requirements;

[0003] The patent with patent announcement number CN214454950U discloses a precision cam pick-and-place mechanism, including a base, a bearing, a central axis, a transverse guide rail, a slide, two vertical guide rails, a swing arm and a motor; an inverted U-shaped guide groove is arranged on the front side of the base; the bearing is adapted to the guide groove and moves back and forth along the guide groove; the swing arm is driven by a motor, and the transverse and longitudinal guide rails move left and right and up and down to realize the grabbing, transporting and releasing actions of the product, so that the transported items are grabbed from one place and placed in another place by moving a distance. Although the pick-and-place structure only uses one motor to realize the lifting and lateral movement of the material, it also requires the motor to rotate forward and reverse to realize the reciprocating transport, and the control cost is relatively high. Summary of the invention

[0004] In order to solve the above problems in the prior art, the present invention provides a material taking and placing device.

[0005] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0006] A material taking and placing device, comprising:

[0007] A pick-and-place assembly for picking up and placing workpieces;

[0008] A first driving motor, used for driving the output shaft to rotate;

[0009] An eccentric wheel is fixedly connected to the output shaft and enables the pick-and-place assembly to have a lateral displacement;

[0010] A driving wheel, connected to the output shaft in a non-rotatable manner and enabling the pick-and-place assembly to have a longitudinal displacement;

[0011] A longitudinal moving assembly, fixedly connected to the pick-and-place assembly;

[0012] A transverse moving assembly is connected to the longitudinal moving assembly; the longitudinal moving assembly is slidably connected to the transverse moving assembly and can move longitudinally relative to the transverse moving assembly; the transverse moving assembly is connected to the eccentric wheel through a first guide; the first guide has a transverse displacement under the action of the eccentric wheel, thereby driving the transverse moving assembly to have a transverse displacement;

[0013] A reset assembly, connected to the longitudinal moving assembly and capable of resetting the displacement of the longitudinal moving assembly in the lateral and longitudinal directions;

[0014] The reset assembly is connected to the driving wheel through a second guide; the driving wheel is provided with at least one limiting groove that cooperates with the second guide; the second guide is located at a low position when cooperating with the limiting groove, and is located at a high position when cooperating with the non-limiting groove area, so that the second guide has a longitudinal displacement under the action of the driving wheel and then drives the longitudinal moving assembly to have a longitudinal displacement through the reset assembly.

[0015] Furthermore, the first drive motor is connected to a synchronous pulley connected to the output shaft via a synchronous belt; and the first drive motor is fixed on the mounting plate.

[0016] Furthermore, the longitudinal moving assembly includes a longitudinal connecting piece connected to the pick-and-place assembly; the longitudinal connecting piece is provided with a transverse sliding block connected to the reset assembly.

[0017] Furthermore, the transverse moving component includes a first slider slidably connected to the transverse guide rail; the transverse guide rail is fixedly connected to the mounting plate; a longitudinal guide groove is provided on the transverse moving component; and the longitudinal moving component is slidably connected to the longitudinal guide groove via the longitudinal slider.

[0018] Furthermore, the first guide member includes a first connecting shaft connected to the lateral movement component; the eccentric wheel is non-rotatably connected to the output shaft through a connecting hole; and a spacer is provided between the eccentric wheel and the driving wheel.

[0019] Furthermore, the reset assembly includes relatively arranged longitudinal guide blocks fixedly connected to the mounting plate; a first guide rod is slidably connected inside the longitudinal guide block; the top of the first guide rod is fixedly connected to the first fixed rod; the first fixed rod is connected to the second guide member; the bottoms of the two first guide rods are respectively connected to a connecting block; a first reset spring is sleeved on the first guide rod; a second guide rod is provided between the connecting blocks; the transverse slider is slidably connected to the second guide rod; and a second reset spring is provided on the second guide rod.

[0020] Furthermore, the first return spring is arranged between the bottom of the longitudinal guide block and the top of the connecting block, or between the top of the longitudinal guide block and the bottom of the first fixing rod.

[0021] Furthermore, the second return spring is arranged between the connecting block and the transverse sliding block.

[0022] Furthermore, two second guide rods are arranged in parallel; and the second guide member is fixedly connected to the first fixing rod via an extension block.

[0023] Furthermore, it also includes a support component; a support platform is provided on the support component; and the material taking and placing device is arranged on the support platform.

[0024] The beneficial effects of the present invention are as follows: the second return spring in the present invention is not only used to press the first guide member onto the eccentric wheel, but also can realize self-locking at a specific position. After the self-locking is released, the elastic force can be effectively released to restore it to its initial state, saving energy consumption; the cooperation between the second guide member and the driving wheel can also ensure the effectiveness of self-locking at a specific position; the present invention realizes the movement of the pick-and-place assembly in the lateral and longitudinal directions through a first driving motor, thereby improving the efficiency of pick-and-place, and has a small friction coefficient and low energy consumption. It can also effectively utilize the elastic force of the spring compression to reduce power consumption. The first driving motor can output the same motion state regardless of forward or reverse rotation, thereby reducing the possibility of errors, improving safety, and reducing control costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is an exploded view of the structure of the present invention;

[0027] Figure 2 It is a reference diagram of the use state of the present invention;

[0028] Figure 3 It is a three-dimensional diagram of the structure of the present invention;

[0029] Figure 4 It is a structural schematic diagram of another position of the pick-and-place assembly of the present invention;

[0030] Description of reference numerals:

[0031] 100, pick-and-place assembly; 200, first drive motor; 210, synchronous belt; 220, synchronous pulley; 230, output shaft; 240, eccentric wheel; 241, connecting hole; 242, spacer; 250, drive wheel; 251, limit groove; 260, mounting plate; 261, transverse guide rail; 262, support column; 270, second drive motor; 280, workbench; 300, transverse moving assembly; 310, first slider; 320, longitudinal guide groove; 330, first Guide member; 331, first connecting shaft; 400, longitudinal moving assembly; 410, longitudinal connecting member; 420, transverse slider; 430, longitudinal slider; 500, reset assembly; 510, longitudinal guide block; 520, first guide rod; 521, first reset spring; 530, first fixed rod; 540, second guide member; 541, extension block; 550, connecting block; 560, second guide rod; 561, second reset spring; 600, support assembly; 610, support table. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention 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 limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Example:

[0036] like Figure 1-3 As shown, a material picking and placing device includes a picking and placing assembly 100, a first driving motor 200, an eccentric wheel 240, a driving wheel 250, a longitudinal moving assembly 400, a transverse moving assembly 300, and a reset assembly 500; the picking and placing assembly 100 is used to pick and place workpieces, and a common manipulator or vacuum suction cup in the prior art can be used to complete the picking and placing operation of the workpiece; the picking and placing assembly 100 is connected to the longitudinal moving assembly 400, and the longitudinal moving assembly 400 is connected to the transverse moving assembly 300, so that the picking and placing assembly 100 can be displaced in the transverse and longitudinal directions, and the workpiece can be transported;

[0037] In one embodiment, the first drive motor 200 is used to drive the output shaft 230 to rotate; the output shaft 230 is provided with an eccentric wheel 240 and a driving wheel 250; the eccentric wheel 240 and the driving wheel 250 are both connected to the output shaft 230 for locking; the locking connection is usually a key connection; in one embodiment, the output shaft 230 can also be set as a flat head structure to achieve locking connection with the eccentric wheel 240 and the driving wheel 250; the eccentric wheel 240 drives the lateral movement component 300 to have a lateral displacement, thereby The pick-and-place assembly 100 has a lateral displacement; the lateral moving assembly 300 is connected to the longitudinal moving assembly 400; the longitudinal moving assembly 400 is slidably connected to the lateral moving assembly 300 and can move longitudinally relative to the lateral moving assembly 300; the lateral moving assembly 300 is connected to the eccentric wheel 240 through a first guide member 330; the first guide member 330 has a lateral displacement under the action of the eccentric wheel 240, thereby driving the lateral moving assembly 300 to have a lateral displacement; the driving wheel 250 drives the longitudinal moving assembly 300 to move in a lateral direction; The moving assembly 400 has a longitudinal displacement, thereby causing the pick-and-place assembly 100 to have a longitudinal displacement; the reset assembly 500 is connected to the longitudinal moving assembly 400 and can reset the displacement of the longitudinal moving assembly 400 in the lateral and longitudinal directions; the reset assembly 500 is connected to the driving wheel 250 through the second guide 540; the driving wheel 250 is provided with two limiting grooves 251 that cooperate with the second guide 540; in one embodiment, the limiting grooves 251 are arranged relatively, corresponding to two moving positions respectively; the second guide 540 is located at a low position when cooperating with the limiting groove 251, and is located at a high position when cooperating with the non-limiting groove 251 area, so that the second guide 540 has a longitudinal displacement under the action of the driving wheel 250 and then drives the longitudinal moving assembly 400 to have a longitudinal displacement through the reset assembly 500; the present invention realizes the displacement of the pick-and-place assembly 100 in the lateral and longitudinal directions at the same time through a first driving motor 200, thereby effectively transporting the workpiece, greatly reducing the cost, and at the same time cooperating with the reset assembly 500 can effectively reduce energy consumption;

[0038] In one embodiment, the second guide member 540 may be provided with a plurality of limit slots 251 to achieve transport at multiple positions; preferably, two limit slots 251 are provided, and the two positions represent the pick-up and placement positions of the workpiece respectively;

[0039] In one embodiment, the first drive motor 200 is connected to the synchronous pulley 220 connected to the output shaft 230 through a synchronous belt 210; the first drive motor 200 is fixed on the mounting plate 260; it should be noted that another synchronous pulley 220 that cooperates with the synchronous belt 210 is also provided on the motor transmission shaft of the first drive motor 200; a bearing is usually provided between the output shaft 230 and the mounting plate 260, and such connection methods are common methods in the art; in another embodiment, the first drive motor 200 can also directly drive the output shaft 230 to rotate through a belt; in one embodiment, the first drive motor 200 can directly drive the output shaft 230 to rotate;

[0040] In one embodiment, the longitudinal moving assembly 400 includes a longitudinal connecting member 410; the longitudinal connecting member 410 is used to fix the pick-and-place assembly 100; the longitudinal connecting member 410 is also connected to a transverse slider 420; the transverse slider 420 is used to connect to the reset assembly 500, and cooperates with the second reset spring 561 to achieve the reset of the longitudinal moving assembly 400 in the transverse displacement;

[0041] In one embodiment, the transverse moving assembly 300 includes a first slider 310 slidably connected to the transverse guide rail 261; the transverse guide rail 261 is fixedly connected to the mounting plate 260; the transverse moving assembly 300 can only move in the transverse direction; a longitudinal guide groove 320 is provided on the transverse moving assembly 300; the longitudinal moving assembly 400 is slidably connected to the longitudinal guide groove 320 via a longitudinal slider 430; thereby, the longitudinal moving assembly 400 can be driven by the transverse moving assembly 300 to move transversely in addition to its own longitudinal movement;

[0042] In one embodiment, the reset assembly 500 includes longitudinal guide blocks 510 fixedly connected to the mounting plate 260 and arranged opposite to each other; two longitudinal guide blocks 510 are arranged opposite to each other; the longitudinal guide block 510 is slidably connected to the first guide rod 520; both ends of the first guide rod 520 extend out of the longitudinal guide block 510; the first guide rod 520 is generally a round rod, and the first guide rod 520 can move in the longitudinal direction relative to the longitudinal guide block 510; the top of the first guide rod 520 is fixedly connected to a first fixing rod 530, and the two ends of the first fixing rod 530 are respectively connected to the top of the first guide rod 520; the first fixing rod 530 is connected to a second guide member 540; the bottoms of the two first guide rods 520 are respectively connected to a connecting block 550; a sleeve is provided on the first guide rod 520 There is a first return spring 521; in one embodiment, the first return spring 521 is arranged between the bottom of the longitudinal guide block 510 and the top of the connecting block 550, and the first return spring 521 is usually always compressed, so that it can always provide elastic force to press the second guide member 540 against the driving wheel 250, so as to ensure that the driving wheel 250 can effectively drive the second guide member 540 to move when working; in one embodiment, the first return spring 521 is arranged between the top of the longitudinal guide block 510 and the bottom of the first fixing rod 530; a second guide rod 560 is arranged between the connecting block 550; the transverse slider 420 is slidably connected to the second guide rod 560; a second return spring 561 is arranged on the second guide rod 560; the second return spring 561 is arranged between the connecting block 550 and the transverse slider 420, such as Figure 1 As shown, the second return spring 561 is arranged on the left side of the second guide rod 560. The second return spring 561 is usually always compressed, so that it can always provide elastic force to ensure that the first guide member 330 is in close contact with the eccentric wheel 240.

[0043] In one embodiment, the second guide member 540 is connected to the first fixed rod 530 through an extension block 541; the extension block 541 is used to conveniently control the distance between the second guide member 540 and the first fixed rod 530; the first guide member 330 and the extension block 541 can be an integrally formed structure, or the second guide member 540 can be set to a rotatable structure; when the second guide member 540 is set to a rotatable structure, it can be more labor-saving when the driving wheel 250 rotates to drive the second guide member 540 to move; the second guide member 540 is always in contact with the outside of the driving wheel 250; in one embodiment, the first guide member 330 includes a first connecting shaft 331 connected to the lateral movement assembly 300; the first connecting shaft 331 can make the first guide member 330 itself rotatable, and the eccentric wheel 240 can push the first guide member 330 when working to save effort; in one embodiment, the first connecting The shaft 331 may also be interference fit with the lateral moving assembly 300, so that the first guide member 330 itself cannot rotate, while the corresponding eccentric wheel 240 can still effectively cooperate with the first guide member 330; it should be noted that the first guide member 330 is usually circular, but not limited to a circle. The first guide member 330 may also be semicircular or square, triangular or other polygonal. Under normal circumstances, the first guide member 330 has a relatively flat plane that abuts against the outside of the eccentric wheel 240, which will not affect the rotation of the eccentric wheel 240; since the second guide member 540 needs to cooperate with the limiting groove 251 and needs to be able to slide out of the limiting groove 251 smoothly, the second guide member 540 is preferably circular, specifically cylindrical; in some special cases, the second guide member 540 may also be semi-cylindrical, and the semi-cylindrical arc surface cooperates with the limiting groove 251 and the outer wall of the driving wheel 250, so that it can also move smoothly;

[0044] In one embodiment, the eccentric wheel 240 is connected to the output shaft 230 through a connecting hole 241 to prevent rotation; a spacer 242 is provided between the eccentric wheel 240 and the driving wheel 250; the spacer 242 is generally a structure that is integrally protruded on the eccentric wheel 240; in one embodiment, the spacer 242 may also be a structure that is integrally protruded on the driving wheel 250; in one embodiment, the spacer 242 may be a separate component; by providing the spacer 242, it is used to separate the distance between the eccentric wheel 240 and the driving wheel 250, so as to ensure that the first guide member 330 and the eccentric wheel 240 have a reasonable matching size, and the second guide member 540 and the driving wheel 250 also have a reasonable matching size to avoid interference;

[0045] In one embodiment, two second guide rods 560 are arranged in parallel to increase the linearity during lateral movement.

[0046] In one embodiment, the material picking and placing device is arranged on the support assembly 600; a support table 610 is provided on the support assembly 600; the material picking and placing device is arranged on the support table 610; in one embodiment, the mounting plate 260 is connected to the support table through a support column 262; in one embodiment, the mounting plate 260 and the support column 262 can be an integral structure; in one embodiment, a second drive motor 270 is provided on the support table; the second drive motor 270 is used to drive the displacement of the workbench 280, and the workbench 280 is used to place workpieces.

[0047] Working principle: Figure 1 As described above, at this time, the position of the pick-and-place device is biased to the right, and the second guide member 540 is located in the limiting groove 251, the second guide member 540 is in a low position, and the corresponding pick-and-place assembly 100 is in a low position. The pick-and-place assembly 100 is in an initial position for grabbing workpieces, and a material conveying device (not shown in the figure) is provided below the pick-and-place assembly 100. The material conveying device can be a conveyor belt or a vibrating conveying device, which is a common technical means in this field and will not be described in detail here; the first drive motor 200 drives the output shaft 230 to rotate counterclockwise, and the rotation of the eccentric wheel 240 will push the first guide member 330 to move leftward, thereby driving the lateral The moving assembly 300 moves to the left, thereby driving the longitudinal moving assembly 400 and the pick-and-place assembly 100 to move to the left; at the same time, the rotation of the driving wheel 250 will also push the second guide block to move upward, thereby driving the first fixed rod 530 and the second guide rod 560 to move upward, and then driving the longitudinal moving assembly 400 and the pick-and-place assembly 100 to move upward; the pick-and-place assembly 100 forms a compound movement to the left and upward at the same time. Further, after the driving wheel 250 rotates 180°, the second guide member 540 will fall into the limiting groove 251 on the opposite side, and the rear half of the pick-and-place assembly 100 will perform a compound movement to the left and downward, and finally Figure 4 In this state, the first guide member 330 and the connecting hole 241 are located in the same horizontal plane, that is, the central axis of the first guide member 330 and the center line of the connecting hole 241 are located in the same horizontal plane, forming a self-locking structure; the elastic force of the second return spring 561 is transmitted to the first guide member 330, and the force applied by the first guide member 330 to the eccentric wheel 240 passes through the center of the connecting hole 241, thereby failing to push the eccentric wheel 240 to rotate; during the above-mentioned movement, the first return spring 521 undergoes a compression-release process, thereby ensuring that the second guide member 540 is always in contact with the outer wall of the driving wheel 250; the second return spring 561 is always further compressed; Figure 4 to Figure 1The output shaft 230 rotates counterclockwise. At this time, the rotation of the eccentric wheel 240 makes the pressure applied by the first guide member 330 on the eccentric wheel 240 not pass through the center of the connecting hole 241. The compressed elastic force of the second return spring 561 can be effectively released, so that the first guide member 330 can push the eccentric wheel 240 to further rotate to Figure 1 The second return spring 561 of the present invention is not only used to press the first guide member 330 against the eccentric wheel 240, but also can realize self-locking at a specific position, and can effectively release the elastic force after releasing the self-locking to restore it to the state of the first guide member 330 and the eccentric wheel 240. Figure 1 state, saving energy consumption; the cooperation between the second guide member 540 and the driving wheel 250 can also ensure the effectiveness of self-locking at a specific position; the present invention realizes the movement of the pick-and-place component 100 in the lateral and longitudinal directions through a first driving motor 200, thereby improving the efficiency of pick-and-place, and has a small friction coefficient and low energy consumption. It can also effectively use the elastic force of the spring compression to reduce power consumption. The first driving motor 200 can output the same movement state regardless of forward or reverse rotation, thereby reducing the possibility of errors and improving safety.

[0048] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A material picking and placing device, characterized in that: include: A pick-and-place assembly (100) for picking up and placing a workpiece; A first driving motor (200), used for driving the output shaft (230) to rotate; An eccentric wheel (240) is connected to the output shaft (230) in a rotationally fixed manner and enables the pick-and-place assembly (100) to have a lateral displacement; A driving wheel (250) is connected to the output shaft (230) in a rotationally fixed manner and enables the pick-and-place assembly (100) to have a longitudinal displacement; A longitudinal moving assembly (400) is fixedly connected to the pick-and-place assembly (100); A transverse moving assembly (300) is connected to the longitudinal moving assembly (400); the longitudinal moving assembly (400) is slidably connected to the transverse moving assembly (300) and can move longitudinally relative to the transverse moving assembly (300); the transverse moving assembly (300) is connected to the eccentric wheel (240) via a first guide member (330); the first guide member (330) has a transverse displacement under the action of the eccentric wheel (240), thereby driving the transverse moving assembly (300) to have a transverse displacement; A reset component (500) connected to the longitudinal moving component (400) and capable of resetting the displacement of the longitudinal moving component (400) in the transverse and longitudinal directions; The reset assembly (500) is connected to the driving wheel (250) via a second guide member (540); the driving wheel (250) is provided with at least one limiting groove (251) that cooperates with the second guide member (540); the second guide member (540) is located at a low position when cooperating with the limiting groove (251), and is located at a high position when cooperating with a non-limiting groove (251) area, so that the second guide member (540) has a longitudinal displacement under the action of the driving wheel (250), and then drives the longitudinal moving assembly (400) to have a longitudinal displacement through the reset assembly (500).

2. A material taking and placing device according to claim 1, characterized in that: The first drive motor (200) is connected to a synchronous pulley (220) connected to an output shaft (230) via a synchronous belt (210); the first drive motor (200) is fixed on a mounting plate (260).

3. A material taking and placing device according to claim 1, characterized in that: The longitudinal moving assembly (400) comprises a longitudinal connecting piece (410) connected to the pick-and-place assembly (100); a transverse sliding block (420) connected to the resetting assembly (500) is provided on the longitudinal connecting piece (410).

4. A material taking and placing device according to claim 1, characterized in that: The transverse moving assembly (300) comprises a first slider (310) slidably connected to a transverse guide rail (261); the transverse guide rail (261) is fixedly connected to a mounting plate (260); a longitudinal guide groove (320) is provided on the transverse moving assembly (300); and the longitudinal moving assembly (400) is slidably connected to the longitudinal guide groove (320) via a longitudinal slider (430).

5. A material taking and placing device according to claim 1, characterized in that: The first guide member (330) comprises a first connecting shaft (331) connected to the transverse moving assembly (300); the eccentric wheel (240) is connected to the output shaft (230) via a connecting hole (241) in a rotationally fixed manner; and a spacer (242) is provided between the eccentric wheel (240) and the driving wheel (250).

6. A material taking and placing device according to claim 3, characterized in that: The reset assembly (500) comprises longitudinal guide blocks (510) fixedly connected to the mounting plate (260) and arranged opposite to each other; a first guide rod (520) is slidably connected inside the longitudinal guide block (510); the top of the first guide rod (520) is fixedly connected to the first fixing rod (530); the first fixing rod (530) is connected to the second guide member (540); the bottoms of the two first guide rods (520) are respectively connected to a connecting block (550); a first reset spring (521) is sleeved on the first guide rod (520); a second guide rod (560) is provided between the connecting blocks (550); the transverse slider (420) is slidably connected to the second guide rod (560); and a second reset spring (561) is provided on the second guide rod (560).

7. A material taking and placing device according to claim 6, characterized in that: The first return spring (521) is arranged between the bottom of the longitudinal guide block (510) and the top of the connecting block (550), or between the top of the longitudinal guide block (510) and the bottom of the first fixing rod (530).

8. A material taking and placing device according to claim 6, characterized in that: The second return spring (561) is arranged between the connecting block (550) and the transverse sliding block (420).

9. A material taking and placing device according to claim 6, characterized in that: Two second guide rods (560) are arranged in parallel; the second guide member (540) is fixedly connected to the first fixing rod (530) via an extension block (541).

10. A material taking and placing device according to claim 1, characterized in that: It also includes a support assembly (600); a support platform (610) is provided on the support assembly (600); and the material taking and placing device is arranged on the support platform (610).

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