Variable-pitch feeding mechanism for electronic parts

Abstract

The utility model provides a variable-pitch feeding mechanism for electronic parts, and relates to the technical field of feeding mechanical equipment.The variable-pitch feeding mechanism comprises a U-shaped support, a track shaft is fixedly installed between two vertical side plates of the U-shaped support, rotating discs are installed at the two ends of the track shaft through bearings correspondingly, and a guide shaft is connected between the two rotating discs; a plurality of variable-pitch jigs are mounted on the guide shaft in a sliding manner, and the tops of the variable-pitch jigs are used for clamping electronic parts; a track is arranged on the track shaft, the bottom of the variable-pitch jig is connected with the track, and the variable-pitch jig moves along the track; and the turntable is connected with a driving mechanism for driving the turntable to rotate. According to the variable-pitch feeding mechanism for the electronic parts, the distances among the multiple electronic parts can be adjusted, and the variable-pitch feeding efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of feeding machinery and equipment, and in particular to a variable pitch feeding mechanism for electronic components. Background Technology

[0002] Electronic components undergo multiple processing steps during production. They are typically transferred between trays, and each step uses different processing machinery. To improve efficiency, a single machine often processes multiple components simultaneously. However, due to the limitations of the machinery's structure, the spacing between components often needs adjustment between different machines. Existing loading mechanisms generally use robotic arms to move components sequentially to their processing positions. This method is inefficient and requires precise positioning, leading to high costs for the loading mechanism. Utility Model Content

[0003] The present invention aims to solve the technical problems in the background art and provide a variable pitch feeding mechanism that can simultaneously change the pitch of multiple electronic components.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A variable-pitch feeding mechanism for electronic components includes a U-shaped bracket, a track shaft is fixedly installed between two vertical side plates of the U-shaped bracket, turntables are installed at both ends of the track shaft via bearings, and a guide shaft connects the two turntables.

[0006] Several variable pitch fixtures are slidably mounted on the guide shaft. The top of the variable pitch fixture is used to clamp electronic components. A track is provided on the trajectory shaft. The bottom of the variable pitch fixture is connected to the track and moves along the track.

[0007] The turntable is connected to a drive mechanism that drives it to rotate.

[0008] Furthermore, the track is a track groove formed on the cylindrical surface of the track axis, and a cam slider is provided at the bottom of the variable pitch fixture. The cam slider is located in the track groove, and the side of the cam slider contacts the side of the track groove. The bottom surface of the cam slider is set at a preset distance from the bottom surface of the track groove.

[0009] Furthermore, the axis of the track axis is set horizontally, the starting point of the track groove is set at the highest point of the track axis, and the ending point is set on the side of the track axis. The variable pitch fixture rotates 270 degrees from the starting point and then moves to the ending point.

[0010] Furthermore, there are two guide shafts, and the axes of the two guide shafts are parallel; a fixed shaft symmetrical to the position of the guide shafts is also provided between the two turntables.

[0011] Furthermore, the variable pitch fixture includes a base plate and a clamp mounted on the base plate. Two parallel through holes are opened laterally on the base plate to accommodate the guide shaft passing through. The cam slider is a cam follower with its axis perpendicular to the base plate.

[0012] Furthermore, the fixture includes a fixture body with a contoured groove on the top for accommodating electronic components. A rotating chuck is hinged to each end of the contoured groove. A spring is installed between the rotating chuck and the fixture body to keep the rotating chuck in a normally closed state. A raised pressure arm is provided at the tail of the rotating chuck. When the pressure arm rotates toward the base plate, the rotating chuck opens.

[0013] Furthermore, it also includes a transfer head that docks with the variable pitch fixture. The transfer head includes two push rods that correspond to the pressure arms of the rotating chuck, and a suction cup positioned between the two push rods that corresponds to the position of the contour groove.

[0014] Furthermore, the two ends of the track axis are fixed between the two side plates by bolts, and the two ends of the track axis are provided with bearing shoulders. There is a preset gap between the turntable and the corresponding side plate.

[0015] Furthermore, a gear set is fixedly installed on one side of a turntable, and a drive mechanism is installed on the corresponding side plate, which drives the turntable to rotate.

[0016] Furthermore, a horizontal lateral movement mechanism is installed at the bottom of the U-shaped bracket, which drives the U-shaped bracket to move on the horizontal plane along an axis perpendicular to the trajectory axis.

[0017] In use, the electronic components are first placed on top of the pitch-changing fixture and clamped and fixed. Then, the drive mechanism is started to drive the turntable to rotate. The turntable will drive the pitch-changing fixture to rotate through the guide shaft. The movement of the pitch-changing fixture will be affected by the guide shaft and the track on the trajectory shaft at the same time, and finally the spacing between each pitch-changing fixture will be changed.

[0018] Compared with existing technologies, the advantages of this invention are: multiple variable-pitch fixtures can be installed simultaneously on the trajectory axis, enabling adjustment of the spacing between multiple electronic components and improving variable-pitch loading efficiency. The drive mechanism can control the rotation angle of the variable-pitch fixture driven by the turntable, enabling the variable-pitch fixture to turn, thereby matching different processing machines. This application has a simple structure, low cost, stable operation, and maintains high positioning accuracy, solving the problem of low efficiency in existing technologies. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the variable pitch feeding mechanism for electronic components in an embodiment of this utility model;

[0020] Figure 2This is a schematic diagram of the installation of the variable-pitch fixture in an embodiment of this utility model;

[0021] Figure 3 This is a schematic diagram of the installation of the fixed shaft in an embodiment of this utility model;

[0022] Figure 4 This is a schematic diagram of the variable-distance fixture in the embodiments of this utility model;

[0023] Figure 5 This is a cross-sectional view of the variable-pitch fixture in an embodiment of this utility model;

[0024] Figure 6 This is a schematic diagram of the material transfer head in an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the installation of the horizontal traversing mechanism in an embodiment of this utility model.

[0026] Among them, 1: U-shaped bracket; 2: track axis; 3: turntable; 4: variable pitch fixture; 5: drive mechanism; 6: clamp; 7: material transfer head; 8: horizontal traverse mechanism; 11: side plate; 21: track; 31: guide shaft; 32: fixed shaft; 41: cam slider; 42: base plate; 51: gear set; 61: contour groove; 62: clamp body; 63: rotating chuck; 64: spring; 65: pressure arm; 71: push rod; 72: suction cup. Detailed Implementation

[0027] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly. The connection can be a direct connection or an indirect connection.

[0030] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0031] like Figure 1 The diagram shown is a structural schematic of a variable pitch feeding mechanism for electronic components in one embodiment of the present invention. The variable pitch feeding mechanism for electronic components provided in this embodiment includes a U-shaped bracket 1. A track shaft 2 is fixedly installed between two vertical side plates 11 of the U-shaped bracket 1. Turntables 3 are respectively installed at both ends of the track shaft 2 through bearings. A guide shaft 31 is connected between the two turntables 3.

[0032] The U-shaped bracket 1 can be manufactured as a single piece or assembled from three plates. Preferably, the bottom plate of the U-shaped bracket 1 is installed horizontally, making the two side plates 11 of the U-shaped bracket 1 vertical, and the track shaft 2 can be installed horizontally between the two vertical side plates 11. The track shaft 2 remains fixed and is provided with a track for guiding the electronic components to change pitch. This track can be fixed on the circumference of the track shaft 2 in any easily implementable form. The track needs to have a smooth transition to prevent the electronic components from falling off during movement along the track. The track is preferably a grooved track or a raised track 21 track. Two turntables 3 are respectively mounted at both ends of the track shaft 2 by bearings and can rotate around the axis. The two turntables 3 are connected by a guide shaft 31 to form a motion structure.

[0033] Several variable pitch fixtures 4 are slidably mounted on the guide shaft 31. The top of the variable pitch fixture 4 is used to clamp electronic components. A track 21 is provided on the track shaft 2. The bottom of the variable pitch fixture 4 is connected to the track 21 and moves along the track 21.

[0034] The guide shaft 31 is parallel to the trajectory shaft 2, maintaining a constant distance from the trajectory shaft 2 during rotation. This ensures that the distance between the pitch-changing fixture 4 and the trajectory shaft 2 remains constant, preventing separation. The top of the pitch-changing fixture 4 can be equipped with a clamp, magnet, or other structure to temporarily fix the electronic components, driving them to perform compound movements around and along the trajectory shaft 2, achieving pitch variation between adjacent electronic components. The track 21 on the trajectory shaft 2 can be a grooved track 21 or a raised track 21. The bottom of the pitch-changing fixture 4 can be equipped with a corresponding connecting structure to the track 21, allowing the pitch-changing fixture 4 to move along the track 21. The track 21 can be designed based on the positions before and after pitch variation, then a smooth curve connects the starting and ending positions to form a smooth motion trajectory. The fit accuracy between the track 21 and the pitch-changing fixture 4 determines the positioning accuracy of the electronic components. Preferably, the track 21 is a grooved track 21, and the pitch-changing fixture 4 slides with the grooved track 21 via a cam to improve positioning accuracy.

[0035] The turntable 3 is connected to a drive mechanism 5 that drives it to rotate.

[0036] The drive mechanism 5 can be any mechanism capable of driving the turntable 3 to rotate, such as a gear and rack mechanism, a motor, etc. The drive mechanism 5 can control the rotation angle of the turntable 3. After cooperating with the track 21 on the trajectory axis 2, it can simultaneously perform pitch and steering operations on electronic components to meet the needs of different processing machines.

[0037] The variable-pitch feeding mechanism for electronic components provided in this embodiment can simultaneously mount multiple variable-pitch fixtures 4 via the trajectory axis 2, realizing the adjustment of the spacing between multiple electronic components, improving the variable-pitch feeding efficiency, and simultaneously performing variable-pitch and steering operations on electronic components, matching different processing machines. It has the advantages of simple structure, low cost, and stable operation, and can solve the problem of low efficiency in existing technologies while maintaining high positioning accuracy.

[0038] like Figure 2 The diagram shown is an installation schematic of the variable pitch fixture in this embodiment. In this embodiment, the track 21 is a track groove formed on the cylindrical surface of the track shaft 2. The bottom of the variable pitch fixture 4 is provided with a cam slider 41, which is located in the track groove. The side of the cam slider 41 contacts the side of the track groove, and the bottom surface of the cam slider 41 is set at a preset distance from the bottom surface of the track groove.

[0039] The side of the cam slider 41 contacts the side of the track groove, and the bottom surface of the cam slider 41 is set at a preset distance from the bottom surface of the track groove. This reduces the wear of the cam slider 41, prevents the distance between the variable pitch fixture 4 and the track shaft 2 from changing, and improves the positioning accuracy when moving along the track groove by positioning from the side.

[0040] In this embodiment, the axis of the trajectory axis 2 is set horizontally, the starting point of the trajectory groove is set at the highest point of the trajectory axis 2, and the ending point is set on the side of the trajectory axis 2. The variable pitch fixture 4 rotates 270 degrees from the starting point and moves to the ending point.

[0041] The starting point of the trajectory groove is set at the highest point of the trajectory axis 2, ensuring that the top surface of the variable-pitch fixture 4 faces upwards at the starting point, facilitating loading from above. During loading, a fixed-pitch robotic arm is used to simultaneously transfer the entire row of electronic components from the tray to the variable-pitch fixture 4. The ending point is located on the side of the trajectory axis 2, which not only facilitates the installation of a robotic arm for unloading electronic components from the variable-pitch fixture 4 but also allows for the flipping of the electronic components, making it suitable for some processing machines. The variable-pitch fixture 4 rotates 270 degrees from the starting point to the ending point, creating a longer distance between the starting and ending points of the trajectory groove, reducing the impact on the electronic components along the axis of the trajectory axis 2, and improving operational stability.

[0042] like Figure 3 As shown, this is a schematic diagram of the installation of the fixed shaft in this embodiment. There are two guide shafts 31, and the axes of the two guide shafts 31 are parallel. A fixed shaft 32, which is symmetrical to the position of the guide shafts 31, is also provided between the two turntables 3.

[0043] The variable-pitch fixture 4 is guided by two guide shafts 31, which keeps the axial distance between the variable-pitch fixture 4 and the trajectory axis 2 fixed, improving the stability of the variable-pitch fixture 4 during movement. The symmetrical arrangement of the fixed shafts 32 ensures that the turntable 3 is subjected to uniform force, improving the stability of the turntable 3's rotation. This embodiment enables the variable-pitch feeding mechanism for electronic components to operate stably during rotation.

[0044] like Figure 3 As shown, in this embodiment, the variable pitch fixture 4 includes a base plate 42 and a clamp 6 mounted on the base plate 42. Two parallel through holes are opened laterally on the base plate 42 for accommodating the guide shaft 31 to pass through. The cam slider 41 is a cam follower, and its axis is perpendicular to the base plate 42.

[0045] Preferably, the axes of the two guide shafts 31 are equidistant from the axis of the track shaft 2. The position of the through hole on the base plate 42 needs to correspond to the position of the guide shaft 31, so that the electronic component can be located between the two guide shafts 31 for easy transfer. A linear bearing can be used for installation between the through hole and the guide shaft 31 to further reduce wear. The cam slider 41 is preferably cylindrical and is mounted on the bottom of the variable pitch fixture 4 via a rotating shaft. It can rotate around its axis, so that the cylindrical surface contacts the side of the track groove, thereby reducing the contact area, reducing wear, and improving the service life of the cam slider 41. The cylindrical surface of the cam slider 41 preferably contacts one side of the track groove.

[0046] like Figure 4 and Figure 5 The diagram shows a schematic diagram and a cross-sectional view of the variable pitch fixture. The cross-section of the cross-section is perpendicular to the hinge axis and is the plane of symmetry of the variable pitch fixture. In this embodiment, the fixture 6 includes a fixture body 62 with a contour groove 61 at the top. The contour groove 61 is used to accommodate electronic components. A rotating chuck 63 is hinged to each end of the contour groove 61. A spring 64 is installed between the rotating chuck 63 and the fixture body 62 to keep the rotating chuck 63 in a normally closed state. A raised pressure arm 65 is provided at the tail of the rotating chuck 63. When the pressure arm 65 rotates toward the base plate 42, the rotating chuck 63 opens.

[0047] The fixture body 62 is block-shaped, and its top surface has a contoured groove 61 that can be machined or integrally formed according to the shape of the electronic component, allowing the electronic component to easily enter the contoured groove 61 and be accurately positioned. The fixture body 62 can have a slot at the location where the rotating chuck 63 is installed. The rotating chuck 63 is hinged in the slot via a rotating shaft and can rotate within the slot, allowing the head of the rotating chuck 63 to hold the electronic component. The spring 64 that keeps the rotating chuck 63 in a normally closed state can be a tension spring 64 or a compression spring 64, depending on the installation position. The tail of the rotating chuck 63 is located below the hinge point, and the pressure arm 65 can be equipped with rollers to improve the stability of downward pressure. The head, tail, and hinge shaft of the rotating chuck 63 form a lever structure. When the pressure arm 65 is pressed down, the head of the rotating chuck 63 rotates and opens, allowing for loading and unloading operations. The fixture 6 provided in this embodiment can install the mechanism that drives its opening and closing on the device that docks with it, reducing the complexity of the overall structure of the variable pitch fixture 4 and reducing its mass, making the rotation process of the variable pitch fixture 4 more stable and convenient.

[0048] In this embodiment, a transfer head 7 that docks with the variable pitch fixture 4 is also included, such as... Figure 6 The diagram shown is a schematic of the transfer head in this embodiment. The transfer head 7 includes two push rods 71 ​​that correspond to the pressure arms 65 of the rotating chuck 63, and a suction cup 72 disposed between the two push rods 71 ​​and corresponding to the position of the contour groove 61.

[0049] The transfer head 7 can be configured according to the number and position of the variable-pitch fixture 4. The push rod 71 can be a telescopic push rod 71, and both the push rod 71 and the suction cup 72 can be driven by a cylinder. During loading, the push rod 71 can first fully press down the pressure arm 65, causing the head of the rotating chuck 63 to open, and then the suction cup 72 places the electronic component into the contour groove 61. During unloading, the suction cup 72 can first remove the electronic component before the push rod 71 disengages from the pressure arm 65, causing the rotating chuck 63 to return to its original position.

[0050] In this embodiment, the two ends of the track shaft 2 are fixed between the two side plates 11 by bolts. The two ends of the track shaft 2 are provided with shaft shoulders for mounting bearings. The turntable 3 and the corresponding side plate 11 have a preset gap.

[0051] Bolts can fix the track axis 2 along the axial direction, and further, pins or other parts can be used to fix the track axis 2 to prevent it from rotating.

[0052] like Figure 7 The diagram shown is an installation schematic of the horizontal traversing mechanism in this embodiment. In this embodiment, a gear set 51 is fixedly installed on one side of a turntable 3, and the drive mechanism 5 is installed on the corresponding side plate 11, and drives the turntable 3 to rotate through the gear set 51.

[0053] The drive mechanism 5 is preferably a stepper motor, which drives the turntable 3 to rotate via the stepper motor and gear set 51, providing sufficient torque and improving rotational accuracy. Preferably, an angle sensor can be installed on the turntable 3 to further improve the rotational accuracy of the turntable 3, thereby improving the positional accuracy of the variable pitch fixture 4 at the starting and ending points.

[0054] In this embodiment, a horizontal lateral movement mechanism 8 is installed at the bottom of the U-shaped bracket 1. The horizontal lateral movement mechanism 8 drives the U-shaped bracket 1 to move on the horizontal plane perpendicular to the axis of the trajectory axis 2.

[0055] The horizontal transverse mechanism 8 can be composed of a pneumatic cylinder or an electric cylinder, which drives the trajectory axis 2 to move perpendicularly to its axis on the horizontal plane. This allows the starting and ending positions of the variable pitch fixture 4 to be a certain distance apart along the moving direction of the horizontal transverse mechanism 8, making it easier to set up the loading and unloading devices in a more open space.

[0056] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A variable-pitch feeding mechanism for electronic components, characterized in that, Includes a U-shaped bracket (1), a track shaft (2) is fixedly installed between two vertical side plates (11) of the U-shaped bracket (1), and turntables (3) are respectively installed at both ends of the track shaft (2) through bearings, and a guide shaft (31) is connected between the two turntables (3). Several variable pitch fixtures (4) are slidably mounted on the guide shaft (31). The top of the variable pitch fixtures (4) is used to clamp electronic components. A track (21) is provided on the track shaft (2). The bottom of the variable pitch fixtures (4) is connected to the track (21) and moves along the track (21). The turntable (3) is connected to a drive mechanism (5) that drives it to rotate.

2. The variable-pitch feeding mechanism for electronic components according to claim 1, characterized in that, The track (21) is a track groove formed on the cylindrical surface of the track shaft (2). The bottom of the variable pitch fixture (4) is provided with a cam slider (41). The cam slider (41) is located in the track groove, and the side of the cam slider (41) is in contact with the side of the track groove. The bottom surface of the cam slider (41) is set at a preset distance from the bottom surface of the track groove.

3. The variable-pitch feeding mechanism for electronic components according to claim 2, characterized in that, The axis of the trajectory axis (2) is set horizontally. The starting point of the trajectory groove is set at the highest point of the trajectory axis (2), and the ending point is set on the side of the trajectory axis (2). The variable pitch fixture (4) rotates 270 degrees from the starting point and moves to the ending point.

4. The variable-pitch feeding mechanism for electronic components according to claim 2, characterized in that, There are two guide shafts (31), and the axes of the two guide shafts (31) are parallel; a fixed shaft (32) symmetrical to the guide shafts (31) is also provided between the two turntables (3).

5. The variable-pitch feeding mechanism for electronic components according to claim 4, characterized in that, The variable pitch fixture (4) includes a base plate (42) and a clamp (6) mounted on the base plate (42). Two parallel through holes are opened laterally on the base plate (42) to accommodate the guide shaft (31) passing through. The cam slider (41) is a cam follower with its axis perpendicular to the base plate (42).

6. The variable-pitch feeding mechanism for electronic components according to claim 5, characterized in that, The clamp (6) includes a clamp body (62) with a contour groove (61) on the top. The contour groove (61) is used to accommodate the electronic component. A rotating chuck (63) is hinged to each end of the contour groove (61). A spring (64) is installed between the rotating chuck (63) and the clamp body (62) to keep the rotating chuck (63) in a normally closed state. A raised pressure arm (65) is provided at the tail of the rotating chuck (63). When the pressure arm (65) rotates toward the base plate (42), the rotating chuck (63) opens.

7. The variable-pitch feeding mechanism for electronic components according to claim 6, characterized in that, It also includes a transfer head (7) that docks with the variable pitch fixture (4). The transfer head (7) includes two push rods (71) that correspond to the pressure arms (65) of the rotating chuck (63) respectively, and a suction cup (72) that is disposed between the two push rods (71) and corresponds to the position of the contour groove (61).

8. The variable-pitch feeding mechanism for electronic components according to claim 1, characterized in that, The two ends of the trajectory shaft (2) are fixed between the two side plates (11) by bolts. The two ends of the trajectory shaft (2) are provided with shaft shoulders for mounting the bearings. The turntable (3) has a preset gap with the corresponding side plate (11).

9. The variable-pitch feeding mechanism for electronic components according to claim 1, characterized in that, A gear set (51) is fixedly installed on one side of one of the turntables (3), and the drive mechanism (5) is installed on the corresponding side plate (11) and drives the turntable (3) to rotate through the gear set (51).

10. The variable-pitch feeding mechanism for electronic components according to claim 1, characterized in that, The bottom of the U-shaped bracket (1) is equipped with a horizontal lateral movement mechanism (8), which drives the U-shaped bracket (1) to move on the horizontal plane perpendicular to the axis of the trajectory axis (2).

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