Tray step positioning transfer mechanism

Abstract

The utility model discloses a kind of material tray step positioning transfer mechanism, comprising: rack;Material tray, fixed-distance pin hole plate, linear reciprocating mechanism and positioning pin telescopic mechanism, the material tray is slidably arranged on the rack, multiple workpiece placing grooves with interval arrangement are equipped on the material tray;The fixed-distance pin hole plate is arranged at the bottom of the material tray, multiple fixed-distance pin holes with interval arrangement along preset direction are opened on the fixed-distance pin hole plate;The linear reciprocating mechanism is installed on the rack, the linear reciprocating mechanism is equipped with moving seat, the linear reciprocating mechanism is suitable for driving the moving seat to and fro straight line motion;The positioning pin telescopic mechanism is arranged on the moving seat, and the positioning pin telescopic mechanism includes telescopic driving part and the positioning pin connected with the telescopic driving part, and the positioning pin is suitable for being inserted with the fixed-distance pin hole cooperation. The utility model can realize the step positioning transfer of material tray, improve workpiece positioning accuracy, ensure the position stability of workpiece in transfer process.

Description

Technical Field

[0001] This utility model relates to a material tray stepping positioning and conveying mechanism. Background Technology

[0002] Currently, workpiece positioning and transfer is a crucial step in automated production lines, requiring workpieces to be moved to designated positions according to predetermined step distances for processing or assembly. Traditional workpiece transfer methods often employ continuous conveyor belts or manual handling. However, continuous conveyor belts struggle to achieve step-by-step positioning of workpieces, while manual handling is inefficient and lacks positioning accuracy, failing to meet the requirements of modern automated production for both positioning accuracy and production efficiency.

[0003] After searching the existing technology, Chinese patent CN218087908U was found to disclose a material hopper. This patent uses a reciprocating drive device to drive a material tray to slide back and forth on a guide rail for loading and unloading, thus realizing the movement of the material tray. However, the material tray in this technical solution can only perform simple reciprocating motion, and cannot achieve step-by-step positioning and transfer of workpieces. Furthermore, it lacks control over the movement position of the material tray, making it difficult to guarantee the positioning accuracy of the workpiece during the transfer process. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a material tray stepping positioning and conveying mechanism, which can realize the stepping positioning and conveying of the material tray, improve the positioning accuracy of the workpiece, and ensure the positional stability of the workpiece during the conveying process.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a material tray stepping positioning and conveying mechanism, comprising:

[0006] frame;

[0007] A material tray, which is slidably mounted on the frame, has multiple workpiece placement slots arranged at intervals on the material tray;

[0008] A spacer pin hole plate is provided at the bottom of the material tray, and the spacer pin hole plate has a plurality of spacer pin holes arranged at intervals along a preset direction.

[0009] A linear reciprocating mechanism is mounted on the frame and has a movable seat, which is adapted to drive the movable seat to reciprocate linearly.

[0010] A positioning pin telescopic mechanism is provided on the movable seat. The positioning pin telescopic mechanism includes a telescopic drive component and a positioning pin connected to the telescopic drive component. The positioning pin is adapted to be inserted into the fixed-distance pin hole.

[0011] The linear reciprocating mechanism is adapted to drive the moving seat to move and drive the material tray to move synchronously through the positioning pin after the telescopic drive member drives the positioning pin to extend and insert into the corresponding fixed distance pin hole.

[0012] Furthermore, the tray stepping positioning and conveying mechanism also includes at least one displacement sensor, which is mounted on the frame at the start or end position of the tray's movement stroke.

[0013] Furthermore, a guide rail slider mechanism is provided between the frame and the material tray, the guide rail slider mechanism comprising:

[0014] At least one guide rail is fixedly mounted on the frame and extends along the moving direction of the material tray;

[0015] At least one slider, the slider being slidably engaged with the guide rail;

[0016] The slider is fixedly connected to the bottom of the material tray.

[0017] Furthermore, the positioning pin telescopic mechanism also includes a sliding seat, which is slidably mounted on the frame, and the telescopic drive component is fixed on the sliding seat;

[0018] The sliding seat is fixedly connected to the movable seat.

[0019] Furthermore, a specific structure of a limiting mechanism is provided. The material tray stepping positioning and conveying mechanism further includes a limiting mechanism, which includes:

[0020] A mounting base is provided on the frame;

[0021] A screw threaded to the fixed seat, the end of the screw being adapted to abut against the sliding seat to limit its range of motion.

[0022] Furthermore, the tray is provided with a plurality of spaced-apart partitions, and the workpiece placement grooves are formed between adjacent partitions.

[0023] Furthermore, the spacer pin holes on the spacer pin hole plate are arranged in two rows along the moving direction of the material tray;

[0024] The tray stepping positioning and conveying mechanism also includes a locking pin mechanism, which includes:

[0025] A locking driver, which is fixedly mounted on the frame, is provided with an output end suitable for extension and retraction;

[0026] A locking pin, which is connected to the output terminal of the locking driver;

[0027] The locking driver is adapted to drive the locking pin to insert into the corresponding fixed-distance pin hole in one of the rows after the material tray is moved into place.

[0028] Furthermore, the linear reciprocating mechanism is a cylinder.

[0029] By adopting the above technical solution, this utility model has the following beneficial effects:

[0030] In this invention, during operation, the linear reciprocating mechanism drives the moving seat to move back and forth linearly. The telescopic drive component in the positioning pin telescopic mechanism drives the positioning pin to extend and insert into the corresponding positioning pin hole on the positioning pin hole plate. Then, the linear reciprocating mechanism continues to drive the moving seat to move, and the positioning pin drives the material tray to move synchronously. When the material tray moves to the predetermined position, the telescopic drive component drives the positioning pin to retract and disengage from the positioning pin hole, completing one step positioning transfer. Through the insertion and cooperation of the positioning pin and the positioning pin hole, the precise positioning of the material tray during the transfer process is ensured, avoiding the positional deviation and workpiece placement slot misalignment problems that may occur in the traditional push-pull method. At the same time, the spaced arrangement design of the positioning pin hole ensures that the material tray can move accurately according to the preset step distance, realizing the precise alignment of the workpiece placement slot with the subsequent process equipment, and improving the processing accuracy and efficiency of the production line.

[0031] In addition, displacement sensors are installed at the start or end of the tray's movement stroke to monitor the tray's movement status and provide accurate position feedback signals for the production line. The guide rail in the guide rail slider mechanism extends along the tray's movement direction, and the slider slides and is fixedly connected to the bottom of the tray, providing movement guidance for the tray. The limiting mechanism restricts the sliding seat's movement range by abutting the end of the screw, preventing the sliding seat from overtraveling and protecting equipment safety. The locking pin mechanism drives the locking pin to insert into the fixed-distance pin hole after the tray moves into position, providing additional locking and fixing for the tray, ensuring the stability of the tray's position during feeding and unloading.

[0032] In summary, this utility model achieves step-by-step positioning and conveying of the material tray through the insertion and cooperation of the positioning pin and the fixed-distance pin hole. Combined with the position monitoring of the displacement sensor, the movement guidance of the guide rail slider mechanism, and the auxiliary locking of the locking pin mechanism, it significantly improves the positioning accuracy and operational stability of the material tray conveying, and meets the technical requirements of the production line for positioning and feeding. Attached Figure Description

[0033] Figure 1 This is a three-dimensional structural diagram of the material tray stepping positioning and conveying mechanism of this utility model. Figure 1 ;

[0034] Figure 2 This is a three-dimensional structural diagram of the material tray stepping positioning and conveying mechanism of this utility model. Figure 2 ;

[0035] Figure 3 This is a three-dimensional structural diagram of the material tray stepping positioning and conveying mechanism of this utility model. Figure 3 . Detailed Implementation

[0036] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0037] Example 1: As Figure 1-3 As shown, a material tray stepping positioning and conveying mechanism includes:

[0038] Rack 1;

[0039] The material tray 2 is slidably mounted on the frame 1, and the material tray 2 is provided with multiple workpiece placement slots 21 arranged at intervals;

[0040] The spacer pin hole plate 3 is set at the bottom of the material tray 2, and the spacer pin hole plate 3 has a plurality of spacer pin holes 31 arranged at intervals along a preset direction.

[0041] Linear reciprocating mechanism 4 is mounted on frame 1. Linear reciprocating mechanism 4 is provided with a movable seat 41. Linear reciprocating mechanism 4 is adapted to drive the movable seat 41 to reciprocate linear motion.

[0042] The positioning pin telescopic mechanism 5 is mounted on the movable seat 41. The positioning pin telescopic mechanism 5 includes a telescopic drive member 51 and a positioning pin connected to the telescopic drive member 51. The positioning pin is adapted to be inserted into the fixed distance pin hole 31.

[0043] The linear reciprocating mechanism 4 is adapted to drive the moving seat 41 to move and drive the material tray 2 to move synchronously through the positioning pin after the telescopic drive member 51 drives the positioning pin to extend and insert into the corresponding fixed distance pin hole 31.

[0044] In this embodiment, as Figure 2-3As shown, during operation, the linear reciprocating mechanism 4 drives the moving seat 41 to move back and forth in a linear motion. The telescopic drive component 51 in the positioning pin telescopic mechanism 5 drives the positioning pin to extend and insert into the corresponding positioning pin hole 31 on the positioning pin hole plate 3. Then, the linear reciprocating mechanism 4 continues to drive the moving seat 41 to move and drives the material tray 2 to move synchronously through the positioning pin. When the material tray 2 moves to the predetermined position, the telescopic drive component 51 drives the positioning pin to retract and disengage from the positioning pin hole 31, completing one step positioning transfer. Through the insertion and cooperation of the positioning pin and the positioning pin hole 31, the positioning of the material tray 2 during the transfer process is ensured, avoiding the positional deviation and workpiece placement slot 21 misalignment problems that may occur in the traditional push-pull method. At the same time, the spaced arrangement design of the positioning pin hole 31 ensures that the material tray 2 can move according to the preset step distance, realizing the alignment of the workpiece placement slot 21 with the subsequent process equipment, and improving the processing accuracy and efficiency of the production line.

[0045] Specifically, such as Figure 1-2 As shown, the material tray stepping positioning and conveying mechanism also includes two displacement sensors 6, which are mounted on the frame 1 and located at the start and end positions of the material tray 2's movement stroke.

[0046] In this embodiment, as Figure 1-2 As shown, displacement sensor 6 is a proximity sensor, which is fixed to the frame 1 by a mounting bracket. The detection beam of displacement sensor 6 spans the movement path of the material tray 2. Displacement sensor 6 is used to detect whether the material tray 2 has moved to a preset position. When the material tray 2 moves to the starting position or the ending position, the material tray 2 blocks or moves away from the detection beam of the corresponding displacement sensor 6, and displacement sensor 6 outputs a corresponding electrical signal.

[0047] The displacement sensor 6 is electrically connected to the controller, which is a PLC controller. The controller receives the electrical signal output by the displacement sensor 6. When the controller receives the signal from the displacement sensor 6 that the material tray 2 has reached its position, the controller controls the linear reciprocating mechanism 4 to stop moving.

[0048] In some embodiments, the number of displacement sensors 6 is not limited to two; multiple displacement sensors 6 can be set at different positions along the travel of the material tray 2, depending on specific requirements.

[0049] Specifically, such as Figure 1-2 As shown, a guide rail slider mechanism 7 is provided between the frame 1 and the material tray 2. The guide rail slider mechanism 7 includes:

[0050] Two guide rails 71 are fixedly mounted on the frame 1 and extend along the moving direction of the material tray 2.

[0051] Four sliders 72, each slider 72 slidingly engaging with a corresponding guide rail 71;

[0052] The slider 72 is fixedly connected to the bottom of the material tray 2.

[0053] In this embodiment, as Figure 1-2 As shown, the guide rail 71 is a linear guide rail. When the linear reciprocating mechanism 4 drives the moving seat 41 to move, the positioning pin drives the fixed distance pin hole plate 3 to move through the fixed distance pin hole 31, which in turn drives the material tray 2 to move along the direction of the guide rail 71, and the slider 72 slides synchronously on the guide rail 71.

[0054] In some embodiments, the number of guide rails 71 and sliders 72 is not limited to two or four; multiple guide rails 71 and multiple sliders 72 can be provided according to the size of the tray 2 and the load-bearing requirements.

[0055] Specifically, such as Figure 1-3 As shown, the positioning pin telescopic mechanism 5 also includes a sliding seat 53, which is slidably mounted on the frame 1, and the telescopic drive component 51 is fixed on the sliding seat 53.

[0056] The sliding seat 53 is fixedly connected to the movable seat 41.

[0057] Specifically, such as Figure 1-2 As shown, the material tray stepping positioning and conveying mechanism also includes a limiting mechanism 9, which includes:

[0058] Fixing base 91 is mounted on frame 1;

[0059] Screw 92 is threaded to fixed seat 91, and the end of screw 92 is adapted to abut against sliding seat 53 to limit its range of movement.

[0060] In this embodiment, as Figure 3 As shown, the sliding seat 53 is a square sliding seat, and the telescopic drive component 51 is a cylinder, with the cylinder body fixed on the upper surface of the sliding seat 53. The sliding seat 53 is rigidly connected to the moving seat 41 through a connecting plate. When the linear reciprocating mechanism 4 drives the moving seat 41 to move, the sliding seat 53 and the moving seat 41 move synchronously, causing the telescopic drive component 51 to move as a whole.

[0061] The fixed base 91 is fixed to the frame 1, and the threaded section of the screw 92 is threadedly connected to the threaded hole on the fixed base 91. The free end of the screw 92 extends into the moving path of the sliding seat 53. When the sliding seat 53 moves to the end of its stroke, the end face of the sliding seat 53 contacts the end of the screw 92, and the screw 92 restricts further movement of the sliding seat 53. The limiting mechanism 9 is used to prevent the sliding seat 53 from moving beyond a preset range.

[0062] The length of the screw 92 extending beyond the fixed seat 91 can be adjusted by rotating the screw 92, thereby adjusting the travel range of the sliding seat 53. In some embodiments, the telescopic drive 51 can also be a hydraulic cylinder or an electric push rod, and the limiting mechanism 9 can also be in the form of a buffer.

[0063] Specifically, such as Figure 1-2 As shown, the tray 2 is provided with a plurality of spaced-apart partitions 22, and adjacent partitions 22 form workpiece placement slots 21.

[0064] In this embodiment, as Figure 1-2 As shown, the separator 22 is a rectangular protrusion structure, integrally formed on the upper surface of the material tray 2, and the separators 22 are arranged at equal intervals along the length of the material tray 2. A groove-shaped workpiece placement groove 21 is formed between adjacent separators 22, and the width and depth of the workpiece placement groove 21 are determined according to the size of the workpiece to be processed.

[0065] Specifically, such as Figure 1-2 As shown, the spacer pin holes 31 on the spacer pin hole plate 3 are arranged in two rows along the moving direction of the material tray 2;

[0066] The tray stepping positioning and conveying mechanism also includes a locking pin mechanism, which includes:

[0067] Locking driver 81 is fixedly mounted on frame 1 and has an output end that is suitable for extension and retraction.

[0068] Locking pin 82 is connected to the output terminal of locking driver 81;

[0069] The locking driver 81 is adapted to drive the locking pin 82 to insert into the corresponding fixed-distance pin hole 31 in one of the rows after the material tray 2 is moved into place.

[0070] In this embodiment, as Figure 1-3 As shown, the fixed-distance pin holes 31 are arranged in two rows on the fixed-distance pin hole plate 3. The distance between the two rows of fixed-distance pin holes 31 corresponds to the distance between the two positioning pins in the positioning pin telescopic mechanism 5. When the positioning pin is inserted into the fixed-distance pin hole 31, the two positioning pins are respectively inserted into the corresponding holes in the two rows of fixed-distance pin holes 31, so as to realize the dual-point positioning of the material tray 2.

[0071] The locking actuator 81 is a cylinder, the cylinder body of which is fixed to the frame 1 by a bracket, and the piston rod of the cylinder is connected to the locking pin 82 as the output end. The locking pin 82 is a cylindrical pin, which can be inserted into and withdrawn from the fixed-distance pin hole 31 under the drive of the locking actuator 81. The locking pin mechanism is used to lock the material tray 2 after it has moved into place, preventing the material tray 2 from shifting during the feeding process.

[0072] When the material tray 2 moves to the predetermined position, the controller controls the locking driver 81 to operate. The locking driver 81 pushes the locking pin 82 into the corresponding fixed-distance pin hole 31, thereby locking and positioning the material tray 2. In some embodiments, the locking driver 81 can also be a hydraulic cylinder, and the number of locking pin mechanisms can be set to multiple according to the positioning requirements.

[0073] like Figure 2 As shown,

[0074] In this embodiment, as Figure 1-3 As shown, the linear reciprocating mechanism 4 is a double-acting cylinder. The cylinder body is fixed on the frame 1 by a bracket, and the piston rod of the cylinder is connected to the moving seat 41.

[0075] In some embodiments, the linear reciprocating mechanism 4 may also be other drive devices capable of providing linear reciprocating motion, such as hydraulic cylinders, electric cylinders, or linear motors.

[0076] In this embodiment, initially, the material tray 2 is in the starting position. The displacement sensor 6 detects the material tray 2 and sends a signal to the controller. The controller controls the telescopic drive 51 to drive the positioning pin to extend and insert into the corresponding positioning pin hole 31 on the positioning pin hole plate 3, thus connecting the material tray 2 with the positioning pin. Subsequently, the controller controls the linear reciprocating mechanism 4 to move, and the cylinder drives the moving seat 41 to move forward, which in turn drives the material tray 2 to move forward one step distance along the guide rail 71 through the positioning pin. When the material tray 2 moves to the predetermined position, the controller controls the linear reciprocating mechanism 4 to stop moving, and at the same time controls the locking driver 81 to drive the locking pin 82 to insert into the positioning pin hole 31 to lock and position the material tray 2. After processing is completed, the controller controls the locking pin 82 to retract, controls the telescopic drive 51 to drive the positioning pin to retract from the positioning pin hole 31, and then controls the linear reciprocating mechanism 4 to reset, and the moving seat 41 returns to the initial position, completing one work cycle and preparing for the next step movement.

[0077] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tray step positioning and transfer mechanism characterized by, include: Rack (1); The material tray (2) is slidably disposed on the frame (1) and the material tray (2) is provided with a plurality of workpiece placement slots (21) arranged at intervals. A fixed-distance pin hole plate (3) is provided at the bottom of the material tray (2), and a plurality of fixed-distance pin holes (31) are provided on the fixed-distance pin hole plate (3) arranged at intervals along a preset direction. A linear reciprocating mechanism (4) is mounted on the frame (1). The linear reciprocating mechanism (4) is provided with a movable seat (41). The linear reciprocating mechanism (4) is adapted to drive the movable seat (41) to move back and forth in a linear motion. The positioning pin telescopic mechanism (5) is disposed on the movable seat (41). The positioning pin telescopic mechanism (5) includes a telescopic drive (51) and a positioning pin connected to the telescopic drive (51). The positioning pin is adapted to be inserted into the fixed distance pin hole (31). The linear reciprocating mechanism (4) is adapted to drive the moving seat (41) to move and drive the material tray (2) to move synchronously through the positioning pin after the telescopic drive member (51) drives the positioning pin to extend and insert into the corresponding fixed distance pin hole (31).

2. The material tray stepping positioning and conveying mechanism according to claim 1, characterized in that: It also includes at least one displacement sensor (6), which is disposed on the frame (1) at the start or end position of the travel of the tray (2).

3. The material tray stepping positioning and conveying mechanism according to claim 1, characterized in that: A guide rail slider mechanism (7) is provided between the frame (1) and the tray (2), and the guide rail slider mechanism (7) includes: At least one guide rail (71) is fixedly mounted on the frame (1) and the guide rail (71) extends along the moving direction of the tray (2); At least one slider (72) is slidably engaged with the guide rail (71); The slider (72) is fixedly connected to the bottom of the tray (2).

4. The material tray stepping positioning and conveying mechanism according to claim 1, characterized in that: The positioning pin telescopic mechanism (5) also includes a sliding seat (53), which is slidably mounted on the frame (1), and the telescopic drive (51) is fixed on the sliding seat (53); The sliding seat (53) is fixedly connected to the movable seat (41).

5. The material tray stepping positioning and conveying mechanism according to claim 4, characterized in that: It also includes a limiting mechanism (9), which includes: A mounting base (91) is provided on the frame (1); A screw (92) is threaded to the fixed seat (91), and the end of the screw (92) is adapted to abut against the sliding seat (53) to limit its range of movement.

6. The material tray stepping positioning and conveying mechanism according to claim 1, characterized in that: The tray (2) is provided with a plurality of spaced-apart partitions (22), and the workpiece placement groove (21) is formed between adjacent partitions (22).

7. The material tray stepping positioning and conveying mechanism according to claim 1, characterized in that: The spacer pin holes (31) on the spacer pin hole plate (3) are arranged in two rows along the moving direction of the material tray (2); It also includes a locking pin mechanism, which comprises: A locking driver (81) is fixedly mounted on the frame (1) and the locking driver (81) is provided with an output end suitable for extension and retraction; A locking pin (82) is connected to the output end of the locking driver (81); The locking driver (81) is adapted to drive the locking pin (82) to insert into the corresponding spacer pin hole (31) in one of the rows after the tray (2) is moved into place.

8. The material tray stepping positioning and conveying mechanism according to claim 1, characterized in that: The linear reciprocating mechanism (4) is a cylinder.

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