Workpiece collecting device

Abstract

A workpiece receiving device comprises a first variable-pitch mechanism, a second variable-pitch mechanism and a discharging mechanism, the second variable-pitch mechanism is connected between the first variable-pitch mechanism and the discharging mechanism, the first variable-pitch mechanism comprises a plurality of movable positioning assemblies, and each positioning assembly is used for bearing a plurality of workpieces. The second pitch changing mechanism comprises a plurality of sets of movable adsorption assemblies, and each set of adsorption assembly is used for adsorbing the workpieces located on the same set of positioning assembly. A tray is placed on the discharging mechanism and comprises a plurality of placing positions arranged at intervals, and each placing position is used for correspondingly placing one workpiece adsorbed on the adsorption assembly. The positioning assemblies can move so that the distance between the positioning assemblies can be changed to be matched with the distance between the multiple adsorption assemblies, and the adsorption assemblies can move so that the distance between the adsorption assemblies can be changed to be matched with the distance between the multiple placement positions. Therefore, the workpiece groups at different intervals can be grabbed, and the applicability and universality of the workpiece receiving device are improved.

Description

Technical Field

[0001] The present application belongs to the technical field of automation equipment, and in particular relates to a workpiece receiving device. Background Art

[0002] A pallet is a commonly used container in industrial production. Usually, multiple pallets are stacked and the materials are placed in the space between two adjacent pallets, which saves floor space and facilitates the transportation of large quantities of materials.

[0003] Plastic parts after injection molding need to be placed in a pallet for subsequent handling and stacking. In actual production, plastic parts after injection molding need to be grabbed and placed in a pallet using a variable-pitch discharge mechanism. However, since a suction cup assembly on the current variable-pitch discharge mechanism can adsorb a group of workpieces (a group of workpieces contains multiple workpieces), the spacing between each suction cup assembly is fixed, so only workpieces with a specific spacing can be grabbed, and workpieces with multiple different spacings cannot be grabbed, and the applicability and versatility are poor. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a workpiece collecting device, which aims to solve the technical problem that the spacing between each suction cup assembly of the variable distance discharge mechanism in the prior art is fixed, so only workpiece groups with specific spacing can be grasped, and workpiece groups with multiple different spacings cannot be grasped, and the applicability and versatility are poor.

[0005] The utility model provides a workpiece receiving device, comprising a first pitch-changing mechanism, a second pitch-changing mechanism and a material discharging mechanism, wherein the second pitch-changing mechanism is connected between the first pitch-changing mechanism and the material discharging mechanism, the first pitch-changing mechanism comprises a plurality of groups of movable positioning components, each group of positioning components is used to carry a plurality of workpieces, the second pitch-changing mechanism comprises a plurality of groups of movable adsorption components, each group of the adsorption components is used to adsorb workpieces located on the same group of the positioning components; a tray is placed on the material discharging mechanism, the tray comprises a plurality of placement positions arranged at intervals, each of the placement positions is used to place a corresponding workpiece adsorbed on the adsorption component;

[0006] Each group of the positioning components can be moved so that the spacing between each group of the positioning components changes to adapt to the spacing between several groups of adsorption components, and each group of the adsorption components can be moved so that the spacing between each group of the adsorption components changes to adapt to the spacing between several of the placement positions.

[0007] Optionally, the first pitch changing mechanism also includes a first mounting plate, a first slide seat, a first slide rail and a first pitch changing cylinder, the first pitch changing cylinder and the first slide rail are both arranged on the first mounting plate, the first slide seat is slidably connected to the first slide rail, the positioning assembly is arranged on the first slide seat, and the first pitch changing cylinder drives the positioning assembly to move along the first slide rail.

[0008] Optionally, the positioning assembly includes a positioning mounting bracket, a positioning cylinder, a rack, a gear and a positioning piece. The mounting bracket is arranged on the first mounting plate. A plurality of positioning pieces are provided and are rotatably arranged on the mounting bracket. The positioning piece is used to carry a single workpiece. The gear is arranged on the positioning piece. The rack is arranged on the power output end of the positioning cylinder and meshes with the gear. When driven by the positioning cylinder, the rack drives the gear to rotate, thereby rotating the positioning piece to adjust the orientation of the workpiece.

[0009] Optionally, the second pitch changing mechanism also includes a second mounting plate, a second slide, a second slide rail and a second pitch changing cylinder, the two pitch changing cylinders and the second slide rail are both arranged on the second mounting plate, the second slide is slidably connected to the second slide rail, the adsorption assembly is arranged on the second slide, and the second pitch changing cylinder drives the positioning assembly to move along the second slide rail.

[0010] Optionally, the material discharge mechanism includes a material discharge mounting bracket and a first transfer assembly and a second transfer assembly movably disposed on the material discharge mounting bracket, the material discharge mounting bracket is provided with a first workstation and a second workstation, the first workstation is used to receive an empty pallet or a fully loaded pallet from the second workstation, the second workstation is used to receive an empty pallet from the first workstation and for the adsorption assembly to place workpieces, the first transfer assembly and the second transfer assembly alternately transfer pallets between the first workstation and the second workstation.

[0011] Optionally, the first transfer assembly includes a first transfer rail, a first transfer slider and a first bracket, the first transfer slider is slidably connected to the first transfer rail and connected to the first bracket, the first bracket transfers the pallet along the first transfer rail, the second transfer assembly includes a second transfer rail, a second transfer slider, a carrying plate, a lifting cylinder and a second bracket, the second transfer slider is slidably connected to the second transfer rail and connected to the carrying plate, the lifting cylinder is arranged on the carrying plate and the power output end of the lifting cylinder is connected to the second bracket, the first transfer rail and the second transfer rail are each provided with two, the two second transfer rails are arranged between the two first transfer rails, and the height of the second transfer rail is lower than the height of the first transfer rail, the second bracket is lowered by the lifting cylinder and transfers the pallet along the second transfer rail.

[0012] Optionally, the unloading mounting bracket is provided with a driving motor, a pulley and a conveyor belt, the pulley is rotatably connected to the frame and connected to the power output end of the driving motor, the conveyor belt is wrapped around the pulley, the first transfer assembly and the second transfer assembly are both connected to the same conveyor belt, and the driving motor drives the conveyor belt and simultaneously drives the first transfer assembly and the second transfer assembly to slide.

[0013] Optionally, it also includes an upper pan bin, a lower pan bin and a first transport mechanism, the discharge mechanism is connected between the upper pan bin and the lower pan bin, the first transport mechanism is used to transfer the empty pans of the upper pan bin to the discharge mechanism, and at the same time, transport the pallet fully loaded with the workpieces on the discharge mechanism to the lower pan bin.

[0014] Optionally, it also includes a second transport mechanism, which is connected between the discharge mechanism and the lower tray bin, and is used to place the protective part on the pallet in the lower tray bin.

[0015] Optionally, a third transfer mechanism is further included, the third transfer mechanism is connected to the first distance changing mechanism, and the third transfer mechanism is used to transfer the workpiece on the positioning component to a position where the adsorption component can perform adsorption.

[0016] The technical solution provided by the utility model has the following beneficial effects compared with the prior art: the utility model provides a workpiece receiving device, including a first variable pitch mechanism, a second variable pitch mechanism and a discharge mechanism, the second variable pitch mechanism is connected between the first variable pitch mechanism and the discharge mechanism, the first variable pitch mechanism includes several groups of movable positioning components, each group of positioning components is used to carry multiple workpieces, the second variable pitch mechanism includes several groups of movable adsorption components, each group of adsorption components is used to adsorb workpieces located on the same group of positioning components; a tray is placed on the discharge mechanism, the tray includes several spaced placement positions, each placement position is used to place a workpiece adsorbed on the adsorption component; each group of positioning components can be moved so that the spacing between each group of positioning components changes to adapt to the spacing between several groups of adsorption components, and each group of adsorption components can be moved so that the spacing between each group of adsorption components changes to adapt to the spacing between several placement positions. Therefore, in the present application, the spacing between the positioning component and the adsorption component can be adjusted by displacement, and workpiece groups with different spacings can be grabbed, which greatly improves the applicability and versatility of the workpiece receiving device, and the workpieces are automatically placed in the tray quickly and accurately, reducing costs and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the workpiece receiving device provided in an embodiment of the present application.

[0019] Figure 2 It is a structural schematic diagram of the first variable distance mechanism and the third transfer mechanism provided in an embodiment of the present application.

[0020] Figure 3 It is a structural schematic diagram of the positioning component provided in an embodiment of the present application.

[0021] Figure 4 It is a structural schematic diagram of the discharge mechanism provided in an embodiment of the present application at a first viewing angle.

[0022] Figure 5 It is a structural schematic diagram of the discharge mechanism provided in an embodiment of the present application at a second viewing angle.

[0023] Figure 6 It is a schematic structural diagram of a second variable pitch cylinder and a four-axis robot provided in an embodiment of the present application.

[0024] Figure 7It is a structural schematic diagram of the first transport mechanism provided in an embodiment of the present application.

[0025] Figure 8 It is a structural schematic diagram of the second transport mechanism provided in an embodiment of the present application.

[0026] Fig. 9 It is a schematic diagram of the structure of a workpiece provided in an embodiment of the present application.

[0027] Fig.10 It is a schematic diagram of the structure of the tray provided in the embodiment of the present application.

[0028] Description of the accompanying drawings: 1. First pitch-changing mechanism; 11. Positioning assembly; 111. Positioning mounting bracket; 112. Positioning cylinder; 113. Rack; 114. Gear; 115. Positioning piece; 116. Annular protrusion; 117. Slot; 12. First mounting plate; 13. First slide seat; 14. First slide rail; 15. First pitch-changing cylinder; 2. Second pitch-changing mechanism; 21. Adsorption assembly; 22. Second mounting plate; 23. Second slide seat; 24. Second slide rail; 25. Second pitch-changing cylinder; 26. Four-axis robot; 3. Material discharge mechanism; 31. Material discharge mounting bracket; 311. First station; 312. Second station; 313. Driving motor; 314, pulley; 315, conveyor belt; 32, first transfer assembly; 321, first transfer track; 322, first transfer slider; 323, first bracket; 33, second transfer assembly; 331, second transfer track; 332, second transfer slider; 333, load plate; 334, lifting cylinder; 335, second bracket; 4, upper disk bin; 5, lower disk bin; 6, first transport mechanism; 61, first linear module; 62, clamping assembly; 7, second transport mechanism; 71, second linear module; 72, adsorption member; 8, third transfer mechanism; 9, workpiece; 91, clamping cam; 10, tray; 101, placement position. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0030] In the description of the present application, “plurality” means two or more than two, unless otherwise clearly and specifically defined.

[0031] It should also be noted that the directional terms such as left, right, up and down in the embodiments of the present application are merely relative concepts or are based on the normal use status of the product, and should not be considered as restrictive.

[0032] Reference Figures 1 to 6The utility model provides a workpiece receiving device, including a first pitch-changing mechanism 1, a second pitch-changing mechanism 2 and a material discharging mechanism 3, wherein the second pitch-changing mechanism 2 is connected between the first pitch-changing mechanism 1 and the material discharging mechanism 3, the first pitch-changing mechanism 1 includes a plurality of groups of movable positioning components 11, each group of positioning components 11 is used to carry a plurality of workpieces 9, the second pitch-changing mechanism 2 includes a plurality of groups of movable adsorption components 21, each group of adsorption components 21 is used to adsorb the workpieces 9 located on the same group of positioning components 11; a tray 10 is placed on the material discharging mechanism 3, the tray 10 includes a plurality of placement positions 101 arranged at intervals, each placement position 101 is used to place a corresponding workpiece 9 adsorbed on the adsorption component 21;

[0033] Each group of positioning components 11 can move so that the distance between each group of positioning components 11 changes to adapt to the distance between several groups of adsorption components 21, and each group of adsorption components 21 can move so that the distance between each group of adsorption components 21 changes to adapt to the distance between several placement positions 101.

[0034] In actual production, plastic parts after injection molding are usually automatically placed on the positioning component 11 by a three-axis manipulator. Since the three-axis manipulator can grab multiple groups of workpieces 9 at the same time, when each group of positioning components 11 has not yet started to move (that is, each group of positioning components 11 is in an initial state), the distance between each group of positioning components 11 is adapted to the distance between multiple groups of workpieces 9 on the three-axis manipulator. In order to facilitate the adsorption of the workpiece 9 on the positioning component 11 by the adsorption component 21, each group of positioning components 11 changes the distance between the workpieces 9 by displacement. After the adsorption component 21 adsorbs the workpiece 9, in order to facilitate the placement of the workpiece 9 in the tray 10, each group of adsorption components 21 changes the distance between the workpieces 9 by displacement. Therefore, the workpiece receiving device in the present application can automatically place the workpiece 9 in the tray 10 quickly and accurately, reducing costs and improving production efficiency.

[0035] In addition, maintaining an appropriate spacing between the workpieces 9 can prevent the workpieces 9 from colliding with each other during transportation and handling, reducing the risk of scratches, deformation or breakage. At the same time, the appropriate spacing helps air circulation, which is beneficial to the drying of the workpieces 9 and preventing moisture. Therefore, different pallets 10 are required for placing different types of workpieces 9. Therefore, the spacing between the placement positions 101 on different pallets 10 is also different. In the present application, the spacing between the workpieces 9 can be changed twice by the first distance changing mechanism 1 and the second distance changing mechanism 2, and the same workpiece receiving device can be used to change the distance of different types of workpieces 9 and adapt them to each placement position 101 in the pallet 10, which greatly improves the applicability of the device.

[0036] Reference Figure 2In one feasible embodiment, the first pitch-changing mechanism 1 further includes a first mounting plate 12, a first slide 13, a first slide rail 14 and a first pitch-changing cylinder 15. The first pitch-changing cylinder 15 and the first slide rail 14 are both arranged on the first mounting plate 12. The first slide 13 is slidably connected to the first slide rail 14. The positioning assembly 11 is arranged on the first slide 13. The first pitch-changing cylinder 15 drives the positioning assembly 11 to move along the first slide rail 14. In some other feasible embodiments, the first pitch-changing mechanism 1 can drive the positioning assembly 11 to move by a motor and a screw drive.

[0037] Reference Figure 3 In a feasible embodiment, the positioning assembly 11 includes a positioning mounting bracket 111, a positioning cylinder 112, a rack 113, a gear 114 and a positioning member 115. The mounting bracket is arranged on the first mounting plate 12. A plurality of positioning members 115 are provided and rotatably arranged on the mounting bracket. The positioning member 115 is used to carry a single workpiece 9. The gear 114 is arranged on the positioning member 115. The rack 113 is arranged on the power output end of the positioning cylinder 112 and meshes with the gear 114. When the positioning cylinder 112 drives the lower rack 113 to drive the gear to rotate, the positioning member 115 is rotated to adjust the orientation of the workpiece 9. In actual production, the orientation of the annular workpiece 9 needs to be adjusted to facilitate subsequent processing. Therefore, it is necessary to re-place the annular workpiece 9 on the pallet 10 and load and unload the materials. However, manual operation is inefficient and operational errors cannot be avoided. Refer to Fig. 9 and Fig.10 In this embodiment, the positioning member 115 is used to position the annular workpiece 9. The positioning member 115 is provided with an annular protrusion 116 adapted to the annular workpiece 9, a clamping groove 117 is provided on the annular protrusion 116, and a clamping protrusion 91 adapted to the clamping groove 117 is convexly provided on the annular workpiece 9. When the three-axis manipulator places the annular workpiece 9 on the annular protrusion 116, the clamping protrusion 91 is clamped in the clamping groove 117 so that the positioning member 115 can drive the annular workpiece 9 to rotate. Therefore, the positioning cylinder 112 in this embodiment drives the positioning member 115 to rotate, which can quickly adjust the orientation of the annular workpiece 9, improve efficiency and avoid manual operation errors.

[0038] Reference Figure 6In a feasible embodiment, the second pitch-changing mechanism 2 further includes a second mounting plate 22, a second slide 23, a second slide rail 24 and a second pitch-changing cylinder 25. The second pitch-changing cylinder and the second slide rail 24 are both arranged on the second mounting plate 22. The second slide 23 is slidably connected to the second slide rail 24. The adsorption assembly 21 is arranged on the second slide 23. The second pitch-changing cylinder 25 drives the positioning assembly 11 to move along the second slide rail 24. In this embodiment, after the second pitch-changing mechanism 2 adjusts the spacing between the adsorption assemblies 21, the four-axis robot 26 can be used to move the second pitch-changing mechanism 2 to the top of the tray 10 and place it. In this embodiment, the adsorption assembly 21 includes components such as a suction head, a vacuum pump, a control valve and a connecting joint. The suction head is usually made of rubber, silicone or other elastic materials. By creating negative pressure, the workpiece 9 is firmly adsorbed on its surface for transportation; the connecting joint is connected to the vacuum pump so that the negative pressure can be transmitted to the suction head; the vacuum pump provides negative pressure, and the negative pressure is transmitted to the adsorption cup through the connecting joint to achieve adsorption of the workpiece 9. The design and selection of the adsorption component 21 needs to be determined according to the specific application requirements and the characteristics of the workpiece 9 to ensure the adsorption effect and working stability.

[0039] In some other feasible implementations, the second variable pitch mechanism 2 can drive the adsorption component 21 to move by means of a motor and a screw transmission.

[0040] Reference Figure 4 and Figure 5In a feasible embodiment, the discharge mechanism 3 includes a discharge mounting bracket 31 and a first transfer assembly 32 and a second transfer assembly 33 movably arranged on the discharge mounting bracket 31, the discharge mounting bracket 31 is provided with a first station 311 and a second station 312, the first station 311 is used to receive an empty pallet 10 or a fully loaded pallet 10 from the second station 312, the second station 312 is used to receive an empty pallet 10 from the first station 311 and for the adsorption assembly 21 to place the workpiece 9, the first transfer assembly 32 and the second transfer assembly 33 alternately transfer the pallet 10 between the first station 311 and the second station 312. The following is a specific working process of the first transfer assembly 32 and the second transfer assembly 33: the first transfer assembly 32 is transferred to the first station 311 while the second transfer assembly 33 is transferred to the second station 312. At this time, an empty pallet 10 is placed on the first station 311 (the pallet 10 here can be placed mechanically or manually), and a pallet 10 fully loaded with workpieces 9 is placed on the second station 312; the first transfer mechanism supports the pallet 10 on the first station 311 and transfers it to the second station 312. At the same time, the second transfer mechanism supports the pallet 10 on the second station 311. 2 and transfer it to the first station 311; the fully loaded pallet 10 is taken away mechanically or manually, and the empty pallet 10 is placed back on the first station 311. At this time, the empty pallet 10 transferred from the first station 311 to the second station 312 is filled with workpieces 9 by the adsorption component 21; the first transfer mechanism supports the pallet 10 on the second station 312 and transfers it to the first station 311. At the same time, the second transfer mechanism supports the pallet 10 on the first station 311 and transfers it to the second station 312. Therefore, the first transfer component 32 and the second transfer component 33 alternately transfer the pallets 10 between the first station 311 and the second station 312, which greatly improves the production efficiency.

[0041] Specifically, the first transfer assembly 32 includes a first transfer rail 321, a first transfer slider 322 and a first bracket 323, the first transfer slider 322 is slidably connected to the first transfer rail 321 and connected to the first bracket 323, the first bracket 323 transfers the tray 10 along the first transfer rail 321, and the second transfer assembly 33 includes a second transfer rail 331, a second transfer slider 332, a carrying plate 333, a lifting cylinder 334 and a second bracket 335, the second transfer slider 332 is slidably connected to the second transfer rail 331 and connected to the first bracket 323, and the first bracket 323 transfers the tray 10 along the first transfer rail 321. The first transfer assembly 32 and the second transfer assembly 33 are connected to each other, the lifting cylinder 334 is arranged on the load-bearing plate 333, and the power output end of the lifting cylinder 334 is connected to the second bracket 335. The first transfer rail 321 and the second transfer rail 331 are both provided with two, the two second transfer rails 331 are arranged between the two first transfer rails 321, and the height of the second transfer rail 331 is lower than the height of the first transfer rail 321. The second bracket 335 is lowered by the lifting cylinder 334 and moves the pallet 10 along the second transfer rail 331. Since the first transfer assembly 32 and the second transfer assembly 33 simultaneously transfer the pallet 10, in order to avoid mutual interference between the first bracket 323 and the second bracket 335, the height of the second bracket 335 is lowered so that the pallets 10 on the first bracket 323 and the second bracket 335 are staggered when being transferred. It is worth noting that when the second bracket 335 is transferred to the first station 311 or the second station 312 , the lifting cylinder 334 restores the height of the second bracket 335 to facilitate removing the tray 10 from the first station 311 or placing the workpiece 9 on the second station 312 .

[0042] Furthermore, the material discharging mounting bracket 31 is provided with a driving motor 313, a pulley 314 and a conveyor belt 315, the pulley 314 is rotatably connected to the frame and connected to the power output end of the driving motor 313, the conveyor belt 315 is wound around the pulley 314, the first transfer assembly 32 and the second transfer assembly 33 are both connected to the same conveyor belt 315, and the driving motor 313 drives the conveyor belt 315 to slide the first transfer assembly 32 and the second transfer assembly 33. Such a configuration can ensure the synchronization of the transmission of the first transfer assembly 32 and the second transfer assembly 33 by the conveyor belt 315, so that the first bracket 323 and the second bracket 335 can be synchronously approached or moved away, and simultaneously arrive at the first station 311 or the second station 312, thereby improving the reliability of the material discharging mechanism 3.

[0043] Reference Figure 1 and Figure 7In a feasible embodiment, it further includes an upper pan bin 4, a lower pan bin 5 and a first transport mechanism 6, the discharge mechanism 3 is connected between the upper pan bin 4 and the lower pan bin 5, and the first transport mechanism 6 is used to transfer the empty pans of the upper pan bin 4 to the discharge mechanism 3, and at the same time, transport the pallets 10 fully loaded with the workpieces 9 on the discharge mechanism 3 to the lower pan bin 5. Specifically, a plurality of stacked empty pallets 10 can be placed in the upper pan bin 4, and a plurality of stacked fully loaded pallets 10 can be placed in the lower pan bin 5. The first transport mechanism 6 includes a first linear module 61 and two groups of clamping assemblies 62 arranged on the linear module. The two groups of clamping assemblies 62 can respectively clamp the pallets 10 in the upper pan bin 4 and the fully loaded pallets on the first station 311 at the same time. Driven by the first linear module 61, a group of clamping assemblies 62 transfers the fully loaded tray on the first station 311 to the lower tray bin 5. At the same time, another group of clamping assemblies 62 transfers the tray 10 in the upper tray bin 4 to the first station 311, which greatly improves the efficiency of transferring the tray 10. The upper tray bin 4 can drive the tray 10 to rise by means of a motor and a screw drive, so that the clamping assemblies 62 can grab the tray 10; the lower tray bin 5 can drive the tray 10 to descend by means of a motor and a screw drive, so that the clamping assemblies 62 can place the tray 10.

[0044] Reference Figure 1 and Figure 8 In a feasible embodiment, it also includes a second conveying mechanism 7, which is connected between the discharge mechanism 3 and the lower tray bin 5, and is used to place the protective part on the tray 10 in the lower tray bin 5. In practical applications, the protective part is usually made of foam. Since the tray 10 is placed in a stacked manner. Placing foam between the trays can prevent the workpieces 9 from scratching and colliding with each other, and reduce damage and scratches on the surface of the workpiece 9; at the same time, the foam has a certain elasticity and buffering performance, which can absorb vibration and impact during transportation and handling, and reduce the external impact on the workpiece 9. The second conveying mechanism 7 includes a second linear module 71 and an adsorption member 72 provided on the second linear module 71, and the adsorption member 72 is used to adsorb the protective part. When the adsorption member 72 adsorbs the protective part, the second linear module 71 drives the adsorption member 72 to the lower tray bin 5 and places the protective part on the tray 10.

[0045] Reference Figure 1 and Figure 2In a feasible embodiment, a third transfer mechanism 8 is further included, and the third transfer mechanism 8 is connected to the first pitch-changing mechanism 1, and the third transfer mechanism 8 is used to transfer the workpiece 9 on the positioning component 11 to a position where the adsorption component 21 can be adsorbed. In actual production, a four-axis robot 26 can usually be used to transfer the second pitch-changing mechanism 2 to the top of the tray 10 and place it, but the displacement range of the four-axis robot 26 is limited, so it is necessary to use the third transfer mechanism 8 to transfer the workpiece 9 on the positioning component 11 to a position where the adsorption component 21 can be adsorbed. Specifically, the third transfer mechanism 8 can achieve the displacement of the adsorption component 21 by cooperating with a cylinder and a slide rail.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A workpiece receiving device, characterized in that: The invention comprises a first pitch-changing mechanism (1), a second pitch-changing mechanism (2) and a material discharge mechanism (3), wherein the second pitch-changing mechanism (2) is connected between the first pitch-changing mechanism (1) and the material discharge mechanism (3), the first pitch-changing mechanism (1) comprises a plurality of groups of movable positioning components (11), each group of positioning components (11) being used to carry a plurality of workpieces (9), the second pitch-changing mechanism (2) comprises a plurality of groups of movable adsorption components (21), each group of adsorption components (21) being used to adsorb workpieces (9) located on the same group of positioning components (11); a tray (10) is placed on the material discharge mechanism (3), the tray (10) comprises a plurality of placement positions (101) arranged at intervals, each of the placement positions (101) being used to place a corresponding workpiece (9) adsorbed on the adsorption component (21); Each group of the positioning components (11) can be moved so that the spacing between each group of the positioning components (11) changes to adapt to the spacing between several groups of adsorption components (21), and each group of the adsorption components (21) can be moved so that the spacing between each group of the adsorption components (21) changes to adapt to the spacing between several placement positions (101).

2. The workpiece receiving device according to claim 1, characterized in that: The first pitch-changing mechanism (1) further comprises a first mounting plate (12), a first slide seat (13), a first slide rail (14) and a first pitch-changing cylinder (15); the first pitch-changing cylinder (15) and the first slide rail (14) are both arranged on the first mounting plate (12); the first slide seat (13) is slidably connected to the first slide rail (14); the positioning assembly (11) is arranged on the first slide seat (13); and the first pitch-changing cylinder (15) drives the positioning assembly (11) to move along the first slide rail (14).

3. The workpiece receiving device according to claim 2, characterized in that: The positioning assembly (11) comprises a positioning mounting bracket (111), a positioning cylinder (112), a rack (113), a gear (114) and a positioning member (115); the mounting bracket is arranged on the first mounting plate (12); a plurality of positioning members (115) are provided and are rotatably arranged on the mounting bracket; the positioning member (115) is used to carry a single workpiece (9); the gear (114) is arranged on the positioning member (115); the rack (113) is arranged on the power output end of the positioning cylinder (112) and meshes with the gear (114); under the drive of the positioning cylinder (112), the rack (113) drives the gear to rotate, thereby rotating the positioning member (115) to adjust the orientation of the workpiece (9).

4. The workpiece receiving device according to claim 2, characterized in that: The second pitch-changing mechanism (2) further comprises a second mounting plate (22), a second slide seat (23), a second slide rail (24) and a second pitch-changing cylinder (25); the second pitch-changing cylinder and the second slide rail (24) are both arranged on the second mounting plate (22); the second slide seat (23) is slidably connected to the second slide rail (24); the adsorption component (21) is arranged on the second slide seat (23); and the second pitch-changing cylinder (25) drives the positioning component (11) to move along the second slide rail (24).

5. The workpiece receiving device according to claim 1, characterized in that: The material discharging mechanism (3) comprises a material discharging mounting bracket (31) and a first transfer assembly (32) and a second transfer assembly (33) movably arranged on the material discharging mounting bracket (31); the material discharging mounting bracket (31) is provided with a first workstation (311) and a second workstation (312); the first workstation (311) is used to receive an empty pallet (10) or a fully loaded pallet (10) from the second workstation (312); the second workstation (312) is used to receive an empty pallet (10) from the first workstation (311) and to allow the adsorption assembly (21) to place a workpiece (9); the first transfer assembly (32) and the second transfer assembly (33) alternately transfer the pallet (10) between the first workstation (311) and the second workstation (312).

6. The workpiece receiving device according to claim 5, characterized in that: The first transfer assembly (32) comprises a first transfer rail (321), a first transfer slider (322) and a first bracket (323); the first transfer slider (322) is slidably connected to the first transfer rail (321) and connected to the first bracket (323); the first bracket (323) transfers the pallet (10) along the first transfer rail (321); the second transfer assembly (33) comprises a second transfer rail (331), a second transfer slider (332), a carrying plate (333), a lifting cylinder (334) and a second bracket (335); the second transfer slider (332) is slidably connected to the second transfer rail (331) and connected to the first bracket (323); the first bracket (323) transfers the pallet (10) along the first transfer rail (321); The first transfer rail (321) and the second transfer rail (331) are both provided with two, and the two second transfer rails (331) are provided between the two first transfer rails (321), and the height of the second transfer rail (331) is lower than the height of the first transfer rail (321), and the second bracket (335) is lowered by the lifting cylinder (334) and transfers the pallet (10) along the second transfer rail (331).

7. The workpiece receiving device according to claim 5, characterized in that: The material discharging installation bracket (31) is provided with a driving motor (313), a pulley (314) and a conveyor belt (315); the pulley (314) is rotatably connected to the material discharging installation bracket (31) and is connected to the power output end of the driving motor (313); the conveyor belt (315) is wound around the pulley (314); the first transfer component (32) and the second transfer component (33) are both connected to the same conveyor belt (315); the driving motor (313) drives the conveyor belt (315) and simultaneously drives the first transfer component (32) and the second transfer component (33) to slide.

8. The workpiece receiving device according to claim 1, characterized in that: It also includes an upper tray bin (4), a lower tray bin (5) and a first transport mechanism (6); the discharge mechanism (3) is connected between the upper tray bin (4) and the lower tray bin (5); the first transport mechanism (6) is used to transfer an empty tray from the upper tray bin (4) to the discharge mechanism (3), and at the same time, to transport a tray (10) fully loaded with the workpiece (9) on the discharge mechanism (3) to the lower tray bin (5).

9. The workpiece receiving device according to claim 8, characterized in that: It also includes a second transport mechanism (7), which is connected between the discharge mechanism (3) and the lower tray bin (5), and the second transport mechanism (7) is used to place the protective part on the tray (10) in the lower tray bin (5).

10. The workpiece receiving device according to claim 1, characterized in that: It also includes a third transfer mechanism (8), which is connected to the first variable distance mechanism (1), and is used to transfer the workpiece (9) on the positioning component (11) to a position where the adsorption component (21) can perform adsorption.

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