Linear and rotary motion module for chip mounter

Abstract

The utility model relates to a linear and rotary motion module for a chip mounter, which comprises a shell used for accommodating and fixing each functional part of the motion module; the element suction part comprises a coil fixing block, a hollow structure pipeline is arranged in the coil fixing block, and the other end of the pipeline is connected with the output shaft; air holes are formed in the side surface of the output shaft; the linear motion part comprises a sliding block, a guide rail and a linear motor; the rotary motion part comprises a permanent magnet synchronous motor, a coupler and a bearing and is used for realizing rotation of the output shaft; the gravity balance component adopts a magnetic spring mode; the position feedback part comprises a magnetic grid and a position encoder control panel and is used for determining the moving position of the coil fixing block; and the electric control part is used for connecting all the parts and providing energy and control. According to the utility model, the size of the module is reduced, stable and flexible control of linear and rotary motion is realized, and pressure control and angle control of absorbing and releasing electronic components can be better carried out.

Description

Technical Field

[0001] The utility model relates to the field of electronic manufacturing, in particular to a linear and rotary motion module for a chip placement machine. Background Art

[0002] Automatic placement machines are used to place electronic components at high speed and precision, making them the most critical and complex equipment in SMT (Surface Mount Technology) production. They typically use a machine head to place surface mount components onto circuit boards.

[0003] In the electronics manufacturing industry, the component placement head, vertical axis and rotating parts of traditional placement machines are often implemented using stepper motors, resulting in problems such as large number of parts and large volume, many wear parts and shortened maintenance cycles, and slow electrical response. The Z-axis counterweight is implemented using springs, and the force generated at different positions is not constant, which has an adverse effect on motion control. Utility Model Content

[0004] The purpose of the present utility model is to solve at least one of the technical problems existing in the prior art and to provide a linear and rotary motion module for a placement machine, which can solve the problems of many parts and slow response of traditional placement machines, and can extend the maintenance cycle, speed up the response speed, and reduce the difficulty of motion control while reducing the number of parts.

[0005] The present application provides a linear and rotary motion module for a placement machine, comprising:

[0006] Housing, component suction components, linear motion components, rotary motion components, position feedback components, gravity balance components and electronic control components;

[0007] The housing is rectangular and has a cavity structure for accommodating and fixing the various functional components of the motion module;

[0008] The component suction component includes a coil fixing block, a hollow structure pipe is provided in the coil fixing block, a pipe joint is provided at one end of the pipe, the pipe joint is connected to the air pipe, and the air pipe is connected to a controllable air source;

[0009] The other end of the pipe is connected to the output shaft;

[0010] The output shaft is a hollow shaft with one end being closed and the other end being open. There are also air holes on the side of the output shaft.

[0011] A shaft sleeve is also mounted on the coil fixing block, and the shaft sleeve can extend out of the housing through an exit hole arranged on one side of the housing;

[0012] The output shaft is arranged in the shaft sleeve, and a shaft sleeve support is also arranged between the output shaft and the shaft sleeve;

[0013] Linear motion components, including

[0014] A slider, arranged on the side of the coil fixing block;

[0015] A guide rail, arranged inside the housing, cooperating with the slider to enable the coil fixing block to move along the direction of the guide rail;

[0016] The setting direction of the guide rail is parallel to the central axis direction of the outlet hole;

[0017] The coil fixing block is connected with a linear motor;

[0018] Rotary motion components, including;

[0019] A permanent magnet synchronous motor, arranged on the side of the coil fixing block away from the shaft sleeve;

[0020] A coupling, connecting the output end of the permanent magnet synchronous motor and the closed end of the output shaft;

[0021] The output shaft is rotatably fixed in the accommodation cavity inside the coil fixing block through a bearing, and the accommodation cavity communicates with the pipeline;

[0022] The gravity balance component adopts the magnetic spring method;

[0023] The position feedback component, including;

[0024] A position encoder control board, arranged on the inner side of the side wall of the housing above the coil fixing block;

[0025] A magnetic grating, arranged on the coil fixing block, corresponding to the position encoder control board;

[0026] The moving position of the coil fixing block can be determined through the cooperation of the magnetic grating and the position encoder control board;

[0027] The electric control component is used to connect the linear motion component, the rotary motion component, the position feedback component and the gravity balance component, and provide energy and control for each component.

[0028] In one embodiment,

[0029] The linear motor includes a moving coil, a stator yoke and a permanent magnet;

[0030] The moving coil is a set of coils, fixed below the coil fixing block,

[0031] The stator yoke includes a motor support block, a yoke connecting plate, an upper yoke and a lower yoke;

[0032] Permanent magnets are arranged on the upper yoke and the lower yoke;

[0033] The upper yoke and the lower yoke are arranged oppositely, and the upper yoke and the lower yoke are connected by the yoke connecting plate;

[0034] The yoke connecting plate is arranged at both ends of the upper yoke and the lower yoke, so that the distance between the magnets of the upper yoke and the lower yoke allows the moving coil to move between the magnets;

[0035] The yoke connecting plate is connected to the motor support block fixed to the inner side of the housing.

[0036] In one embodiment,

[0037] The magnet includes an intermediate magnet and side magnets;

[0038] Side magnets are arranged on the inner sides of both ends of the upper yoke and the lower yoke, an intermediate magnet is arranged between the side magnets, and the intermediate magnet and the side magnets have opposite magnetic polarities.

[0039] In one embodiment,

[0040] An upper anti-collision block is arranged on one side of the housing away from the outlet hole; a lower anti-collision block is arranged at a position on the inner wall of the housing on the side of the outlet hole close to the guide rail.

[0041] In one embodiment,

[0042] Bearings are respectively arranged at both ends of the accommodation cavity, a copper sleeve is arranged on the outer side of the output shaft between the bearings, through holes are arranged on the copper sleeve, and the arrangement positions of the copper sleeve, the outlet of the pipeline and the air holes of the output shaft are matched with each other, so that the output shaft can be stably communicated with the pipeline during rotation.

[0043] In one embodiment,

[0044] The gravity balance component includes a yoke outer tube, a magnet and a magnet support;

[0045] The yoke outer tube is an outer tube arranged on the coil fixing block;

[0046] The magnet is a cylindrical inner sleeve;

[0047] The magnet support includes an end block arranged on the side of the housing, a magnetic spring pressing plate and a magnetic spring support connected to the end block;

[0048] The magnetic spring pressing plate and the magnetic spring support cooperate with each other to tightly fix the inner sleeve.

[0049] In one embodiment,

[0050] The electric control component includes,

[0051] A cable joint is arranged on one side of the housing and is used to connect the internal circuit with the external circuit,

[0052] The outer main board is fixed to the housing through a mounting board connected to the housing;

[0053] The cable connecting the internal circuit to the cable joint is fixed to the flat pressing plate of the flexible cable and connected to the outer main board;

[0054] The outer main board serves as the summary board for the control boards of each functional component and is also the control board for the linear motor.

[0055] In one embodiment,

[0056] The outer main board is connected to the rotary motor board through a flexible cable, and the rotary motor board is connected to the mounting piece fixed on the coil fixing block;

[0057] The rotary motor board is used for the rotation control of the permanent magnet synchronous motor;

[0058] A cable support bottom plate and a cable cover plate are also provided on the coil fixing block. Wires are installed between the cable support bottom plate and the cable cover plate, and the wires are used for the connection between the permanent magnet synchronous motor and the moving coil and the rotary motor board and the outer main board.

[0059] In one embodiment,

[0060] The outer main board is also connected to the position encoder control board through a magnetic flexible cable. One end of the magnetic flexible cable is connected to the outer main board through the flat pressing plate of the flexible cable, and the other end is connected to the position encoder control board;

[0061] The magnetic flexible cable is fixed on the flexible cable pressing plate, and the flexible cable pressing plate is fixed on the inner wall of the housing on one side of the position encoder control board.

[0062] Compared with the prior art, the beneficial effects of a linear and rotary motion module for a chip mounter provided by the present application are as follows:

[0063] 1. Utilize the characteristic that the damping force generated by the magnetic spring remains constant at different positions to achieve gravity compensation, reduce the requirements for drive control, and improve the smoothness of motion;

[0064] 2. Since the voice coil motor has no cogging force, small thrust fluctuation, and a generally linear relationship between thrust and current, good pressure control can be achieved through the movement in the Z-axis direction;

[0065] 3. Adopt the characteristics of fast response and position closed-loop of the permanent magnet synchronous motor to realize the angle correction function for the picked-up components;

[0066] 4. Adopt a hollow structure as the air flow channel to reduce the appearance size of the module. Description of the Drawings

[0067] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0068] Figure 1 It is a three-dimensional view of a linear and rotary motion module for a mounter in an embodiment;

[0069] Figure 2 It is a front view of a linear and rotary motion module for a mounter in an embodiment;

[0070] Figure 3 In an embodiment Figure 2 The sectional view of the A-A section;

[0071] Figure 4 In an embodiment Figure 2 The sectional view of the B-B section;

[0072] Figure 5 In an embodiment Figure 2 The sectional view of the C-C section.

[0073] Reference numerals:

[0074] 1. Rotary motor board; 2. Cable connector; 3. Air pipe; 4. Flat pressing plate for flexible cable; 5. End block; 6. Inner sleeve; 7. Magnetic spring pressing plate; 8. Cable support bottom plate; 9. Cable cover plate; 10. Flexible cable pressing plate; 11. Upper anti-collision block; 12. Magnetic flexible cable; 13. Outer tube; 14. Permanent magnet synchronous motor; 15. Coupling; 16. Position encoder control board; 17. Magnetic grating; 18. Coil fixing block; 19. Slide block; 20. Outer shell; 21. Output shaft; 22. Shaft outer sleeve support; 23. Lower anti-collision block; 24. Guide rail; 25. Upper magnetic yoke; 26. Moving coil; 27. Mounting piece; 28. Pipe joint; 29. Magnetic yoke connecting plate; 30. Lower magnetic yoke; 31. Mounting plate; 32. Motor support block; 33. Outer total plate; 34. Flexible flat cable; 35. Intermediate magnet; 36. Side magnets; 37. Bearing; 38. Bush; 39. Magnetic spring support; 40. Copper sleeve; 41. Outlet hole; 42. Air hole; 43. Through hole. Detailed implementation manners

[0075] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the protection scope of the present invention.

[0076] The application scenarios of a linear and rotational motion module for a mounter and the aspects contributing to the prior art will be described in detail below in conjunction with the drawings and embodiments.

[0077] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the drawings. Identical reference numerals in the drawings denote elements having the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0078] Among them, it should be understood that the terms "

[0079] center", "longitudinal", "transverse", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical"

[0080] 、"horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present invention or simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0081] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0082] The special term "exemplary" herein means "serving as an example, embodiment, or illustration". Any embodiment described as "exemplary" herein need not be construed as superior to or better than other embodiments.

[0083] In addition, for a better illustration of the present application, numerous specific details are given in the following detailed implementation manners.

[0084] Those skilled in the art should understand that the present application can be implemented without some specific details. In some instances, methods, means, elements, and circuits well-known to those skilled in the art are not described in detail in order to highlight the gist of the present application.

[0085] As Figure 1 、 2 shown, the overall structure and main functional components of the operation module are shown.

[0086] A linear and rotational motion module for a chip mounter, comprising

[0087] a housing 20, a component suction part, a linear motion part, a rotational motion part, a position feedback part, a gravity balance part, and an electric control part.

[0088] As Figure 1 、 2 、3 shown, the specific structure of the component suction part is shown.

[0089] The housing 20 is rectangular and has a cavity structure for accommodating and fixing each functional part of the motion module;

[0090] The component suction part; includes a coil fixing block 18, a hollow structure pipe is arranged in the coil fixing block 18, one end of the pipe is provided with a pipe joint 28, the pipe joint 28 is connected to the air pipe 3, and the air pipe 3 is connected to a controllable air source;

[0091] The other end of the pipe is connected to the output shaft 21;

[0092] The output shaft 21 is a hollow shaft, one end is a closed end, one end is an open end, and air holes 42 are also arranged on the side of the output shaft 21;

[0093] A shaft sleeve 38 is also installed on the coil fixing block 18, and the shaft sleeve 38 can extend out of the housing 20 through an outlet hole 41 arranged on one side of the housing 20,

[0094] The output shaft 21 is arranged in the shaft sleeve 38, and a shaft outer sleeve support 22 is also arranged between the output shaft 21 and the shaft sleeve 38.

[0095] As Figure 1 、 2 、4、5 shown, the structure and connection relationship of the linear motion part are shown.

[0096] The linear motion part, including,

[0097] A slider 19, arranged on the side of the coil fixing block 18;

[0098] A guide rail 24, arranged inside the housing 20, and cooperating with the slider 19 to enable the coil fixing block 18 to move along the direction of the guide rail 24;

[0099] The setting direction of the guide rail 24 is parallel to the central axis direction of the outlet hole 41;

[0100] The coil fixing block 18 is connected to a linear motor;

[0101] The linear motor includes a moving coil 26, a stator yoke, and a magnet;

[0102] The moving coil 26 is a set of coils and is fixed below the coil fixing block 18.

[0103] The stator yoke includes the motor support block 32, the yoke connecting plate 29, the upper yoke 25 and the lower yoke 30.

[0104] Magnets are arranged on the upper yoke 25 and the lower yoke 30.

[0105] The magnets include the middle magnet 35 and the side magnets 36.

[0106] On the inner sides of both ends of the upper yoke 25 and the lower yoke 30, side magnets 36 are arranged, and a middle magnet 35 is arranged between the side magnets 36. The magnetism of the middle magnet 35 and the side magnets 36 is opposite.

[0107] For example, 4 N - pole side magnets 36 are arranged at both ends of the upper and lower yokes 30, and one S - pole middle magnet 35 is arranged at the middle position of the upper and lower yokes 30; vice versa.

[0108] The upper yoke 25 and the lower yoke 30 are arranged opposite to each other, and the yoke connecting plate 29 is used to connect the upper yoke 25 and the lower yoke 30.

[0109] The yoke connecting plate 29 is arranged at both ends of the upper yoke 25 and the lower yoke 30, so that the distance between the magnets of the upper yoke 25 and the lower yoke 30 can allow the moving coil 26 to move between the magnets.

[0110] One side of the yoke connecting plate 29 is connected to the motor support block 32 fixed inside the housing 20.

[0111] Since the linear motor has no cogging force, small thrust ripple, and the thrust has a generally linear relationship with the current, better pressure control can be achieved through the movement in the Z - axis direction. The above - mentioned linear motor adopts a direct - drive method without intermediate links, has high control precision and is compliant control, and can control the contact force.

[0112] In order to further prevent the fixing block of the linear - motor driving coil 26 from moving beyond the designed position when moving, which may damage related components, an upper anti - collision block 11 is arranged on one side of the housing 20 away from the outlet hole 41; a lower anti - collision block 23 is arranged on the inner wall of the housing 20 on the side of the outlet hole 41 near the guide rail 24.

[0113] Such as Figure 1 、 2 、as shown in Figure 3, shows the composition structure and connection relationship of the rotary motion components.

[0114] The rotary motion components include:

[0115] The permanent - magnet synchronous motor 14 is arranged on the side of the coil fixing block 18 away from the bushing 38.

[0116] The coupling 15 connects the output end of the permanent magnet synchronous motor 14 and the closed end of the output shaft 21;

[0117] The output shaft 21 is rotatably fixed in the accommodation cavity within the coil fixing block 18 through bearings 37, and the accommodation cavity communicates with the pipeline.

[0118] The bearings 37 are respectively arranged at both ends of the accommodation cavity. A copper sleeve 40 is arranged on the outer side of the output shaft 21 between the bearings 37. A through hole 43 is arranged on the copper sleeve 40. The arrangement positions of the copper sleeve 40, the outlet of the pipeline, and the air hole 42 of the output shaft 21 are coordinated with each other, so that the output shaft 21 can be stably communicated with the pipeline during rotation.

[0119] That is to say, the gas passing through the pipeline can enter and exit the air hole of the output shaft 21 through the through hole of the copper sleeve 40.

[0120] Utilize the characteristics of fast response and position closed-loop of the permanent magnet synchronous motor 14 to realize the angle correction function for the sucked components.

[0121] A hollow structure is arranged in the coil fixing block 18 as an air flow channel, reducing the external dimensions of the module.

[0122] Such as Figure 1 、 2 shown, showing the composition and connection relationship of the position feedback component.

[0123] The position feedback component includes:

[0124] The position encoder control board 16 is arranged on the inner side of the side wall of the housing 20 above the coil fixing block 18;

[0125] The magnetic grating 17 is arranged on the coil fixing block 18 corresponding to the position encoder control board 16;

[0126] The moving position of the coil fixing block 18 can be determined through the cooperation of the magnetic grating 17 and the position encoder control board 16;

[0127] Such as Figure 1 、 2 shown, showing the structure of the gravity balance component.

[0128] In order to make the movement of the coil fixing block 18 more stable, a gravity balance component is also provided, adopting the magnetic spring method, including a yoke outer tube 13, a magnet, and a magnet support;

[0129] The yoke outer tube 13 is the outer tube 13 arranged on the coil fixing block 18;

[0130] The magnet is a cylindrical inner sleeve 6;

[0131] The magnet support includes an end block 5 provided on the side of the outer shell 20, a magnetic spring pressure plate 7 connected to the end block 5, and a magnetic spring support 39;

[0132] The magnetic spring pressure plate 7 and the magnetic spring support 39 cooperate with each other to tightly fix the inner sleeve 6.

[0133] By utilizing the characteristic that the damping force generated by the magnetic spring remains constant at different positions, gravity compensation is achieved, the requirements for drive control are reduced, and the smoothness of movement is improved.

[0134] As Figure 1 、 2 and shown in FIG. 5, the positions of the electronic control components and the connection relationships with each functional component are shown.

[0135] The electronic control component is used to connect the linear motion component, the rotary motion component, the position feedback component, and the gravity balance component, and provides energy and control for each component; it includes,

[0136] The cable connector 2 is provided on one side of the outer shell 20 and is used to connect the internal circuit with the external circuit.

[0137] The outer main board 33 is fixed to the outer shell 20 through the mounting plate 31 connected to the outer shell 20;

[0138] The cable connecting the internal circuit with the cable connector 2 is fixed to the flat cable pressure plate 4 and connected to the outer main board 33;

[0139] The outer main board 33 serves as the summary board of the control boards of each functional component and is also the control board of the linear motor.

[0140] The outer main board 33 is connected to the rotary motor board 1 through the flexible cable 34, and the rotary motor board 1 is connected to the mounting piece 27 fixed on the coil fixing block 18;

[0141] The rotary motor board 1 is used for the rotation control of the permanent magnet synchronous motor 14.

[0142] The coil fixing block 18 is also provided with a cable support bottom plate 8 and a cable cover plate 9, and a wire is installed between the cable support bottom plate 8 and the cable cover plate 9. The wire is used for the connection between the permanent magnet synchronous motor 14 and the moving coil 26 and the rotary motor board 1 and the outer main board 33.

[0143] The outer main board 33 is also connected to the position encoder control board 16 through the magnetic cable 12. One end of the magnetic cable 12 is connected to the outer main board 33 through the flat cable pressure plate 4, and the other end is connected to the position encoder control board 16;

[0144] The magnetic cable 12 is fixed to the cable pressure plate 10, and the cable pressure plate 10 is fixed to the inner wall of the outer shell 20 on one side of the position encoder control board 16.

[0145] During use, the coil 26 fixing block is driven by a linear motor to move linearly back and forth along the guide rail 24. The movement position of the coil fixing block 18 can be determined through the magnetic grating 17 and the position encoder control board 16, and indirectly determine the movement position of the output shaft 21.

[0146] After the open end of the output shaft 21 moves to a suitable position, the output shaft 21 is driven to rotate by the rotation of the permanent magnet synchronous motor 14 to select or adjust a suitable suction or release direction.

[0147] The suction or release action is achieved by the negative pressure and positive pressure of the controllable air source in cooperation with the trachea 3, the internal pipeline of the coil fixing block, the output shaft 21 with air holes ④②, and the copper sleeve 40, so as to suck or release the electronic components that need to be moved.

[0148] Under the action of the magnetic spring, the linear motor better controls the force conditions at different positions during the movement of the coil fixing block 18. Because generally when the output shaft 21 is arranged vertically downward, it will be affected by gravity. Through the action of the magnetic spring, the buffer force can be stably adjusted, avoiding the problem of uneven force application caused by different spring deformation amounts at different positions when using the spring method.

[0149] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0150] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A linear and rotational motion module for a chip mounter, characterized in that, Comprising, a housing, a component suction part, a linear motion part, a rotary motion part, a position feedback part, a gravity balance part and an electric control part; The housing is rectangular and is provided with a cavity structure for accommodating and fixing each functional part of the motion module; The component suction part includes, a coil fixing block, which is provided with a hollow structure pipeline inside. One end of the pipeline is provided with a pipe joint, and the pipe joint is connected to an air pipe, and the air pipe is connected to a controllable air source; The other end of the pipeline is connected to an output shaft; The output shaft is a hollow shaft, one end is a closed end, and the other end is an open end. Air holes are also provided on the side of the output shaft; A bushing is also installed on the coil fixing block, and the bushing can extend out of the housing through an outlet hole provided on one side of the housing; The output shaft is arranged inside the bushing, and an outer shaft support is also arranged between the output shaft and the bushing; The linear motion part includes, a slider, which is arranged on the side of the coil fixing block; a guide rail, which is arranged inside the housing and cooperates with the slider so that the coil fixing block can move along the direction of the guide rail; The arrangement direction of the guide rail is parallel to the central axis direction of the outlet hole; The coil fixing block is connected to a linear motor; The rotary motion part includes, a permanent magnet synchronous motor, which is arranged on the side of the coil fixing block away from the bushing; a coupling, which connects the output end of the permanent magnet synchronous motor and the closed end of the output shaft; The output shaft is rotatably fixed in the accommodation cavity inside the coil fixing block through a bearing, and the accommodation cavity communicates with the pipeline; The gravity balance part adopts a magnetic spring method; The position feedback part includes, a position encoder control board, which is arranged on the inner side of the side wall of the housing above the coil fixing block; a magnetic grating, which is arranged on the coil fixing block and is arranged corresponding to the position encoder control board; The moving position of the coil fixing block can be determined through the cooperation of the magnetic grating and the position encoder control board; The electric control part is used to connect the linear motion part, the rotary motion part, the position feedback part and the gravity balance part, and provides energy and control for each part.

2. The linear and rotary motion module for a chip mounter according to claim 1, wherein: The linear motor includes a moving coil, a stator yoke and a magnet; The moving coil is a group of coils and is fixed below the coil fixing block; The stator yoke includes a motor support block, a yoke connecting plate, an upper yoke and a lower yoke; Magnets are arranged on the upper yoke and the lower yoke; The upper yoke and the lower yoke are arranged oppositely, and the upper yoke and the lower yoke are connected through a yoke connecting plate; The yoke connecting plate is arranged at both ends of the upper yoke and the lower yoke, so that the distance between the magnets on the upper yoke and the lower yoke can allow the moving coil to move between the magnets; The yoke connecting plate is connected to the motor support block fixed inside the housing.

3. The linear and rotary motion module for a chip mounter according to claim 2, wherein: The magnet includes an intermediate magnet and side magnets; Side magnets are arranged on the inner sides of both ends of the upper yoke and the lower yoke, and an intermediate magnet is arranged between the side magnets, and the intermediate magnet and the side magnets have opposite magnetic polarities.

4. The linear and rotary motion module for a chip mounter according to claim 1, wherein, An upper anti-collision block is arranged on one side of the housing away from the outlet hole; a lower anti-collision block is arranged on the inner wall of the housing on the side of the outlet hole near the guide rail.

5. The linear and rotational motion module for a pick-and-place machine according to claim 1, wherein bearings are respectively arranged at both ends of the accommodating cavity. A copper sleeve is arranged on the outer side of the output shaft between the bearings. Through holes are arranged on the copper sleeve. The arrangement positions of the copper sleeve, the outlet of the pipeline, and the air holes of the output shaft are mutually coordinated so that the output shaft can be stably communicated with the pipeline during rotation.

6. The linear and rotational motion module for a pick-and-place machine according to claim 1, wherein a gravity balance component, comprising a yoke outer tube, a magnet, and a magnet support; the yoke outer tube is an outer tube arranged on the coil fixing block; the magnet is a cylindrical inner sleeve; the magnet support includes an end block arranged on the side of the housing, a magnetic spring pressing plate connected to the end block, and a magnetic spring support; the magnetic spring pressing plate and the magnetic spring support cooperate with each other to tightly fix the inner sleeve.

7. The linear and rotational motion module for a pick-and-place machine according to claim 3, wherein an electric control component, comprising a cable connector, arranged on one side of the housing, for connecting the internal circuit to the external circuit, an outer main board, fixed to the housing through a mounting plate connected to the housing; the cable connecting the internal circuit to the cable connector is fixed on the flat cable pressing plate and connected to the outer main board; the outer main board serves as a summary board for the control boards of each functional component and is also the control board of the linear motor.

8. The linear and rotational motion module for a pick-and-place machine according to claim 7, wherein the outer main board is connected to the rotary motor board through a flexible cable. The rotary motor board is connected to the mounting piece fixed on the coil fixing block; the rotary motor board is used for the rotation control of the permanent magnet synchronous motor; a cable support bottom plate and a cable cover plate are also arranged on the coil fixing block. Wires are installed between the cable support bottom plate and the cable cover plate. The wires are used for the connection between the permanent magnet synchronous motor and the moving coil and the rotary motor board and the outer main board.

9. The linear and rotational motion module for a pick-and-place machine according to claim 8, wherein the outer main board is also connected to the position encoder control board through a magnetic cable. One end of the magnetic cable passes through the flat cable pressing plate and is connected to the outer main board, and the other end is connected to the position encoder control board; the magnetic cable is fixed on the cable pressing plate, and the cable pressing plate is fixed on the inner wall of the housing on one side of the position encoder control board.

Images