A transfer trolley for production of a circuit board

Abstract

The utility model discloses a transfer car for circuit board production, including bottom plate, and the both ends fixed connection two support columns of bottom plate, and four support columns are rectangular distribution, and the bottom plate includes frame, placing plate and two adjusting grooves, and placing plate slidingly sets up on the frame, and two adjusting grooves are fixedly connected with the both ends of frame respectively, a plurality of longitudinal distribution is adjusted board and a top plate same with its structure above bottom plate, and the top plate is located above a plurality of adjusting board, and the adjusting board and top plate all are slidingly connected with four support columns, lifting assembly, and two lifting assemblies are symmetrically equipped with on every frame top near both ends place, the transfer car in the utility model cooperates through the unique lifting assembly and adjusting assembly, has realized the flexible adjustment of adjusting board and top plate height. The handle of rotating adjusting assembly, worm drives worm wheel to rotate, and then makes screw column group rotate, drives threaded sleeve to move along screw column, and the transmission of connecting rod realizes the lifting of adjusting board and top plate.

Description

Technical Field

[0001] This utility model relates to the field of transfer vehicle technology, and in particular to a transfer vehicle for circuit board production. Background Technology

[0002] In modern circuit board manufacturing processes, multiple steps are closely linked, and the transfer of circuit boards between different workstations is crucial to ensuring production continuity. Due to differences in equipment height across different processes, transfer carts must have flexible height adjustment capabilities to efficiently transfer circuit boards and avoid inconvenience and efficiency losses caused by height mismatch issues. Simultaneously, a reliable load-bearing and protective structure is also essential to ensure that circuit boards are not damaged during transfer.

[0003] However, current PCB manufacturing transfer carts on the market generally suffer from problems such as non-adjustable shelf height, unstable load-bearing capacity, and rigid structure. Most transfer carts have fixed shelf heights, making them unsuitable for transporting PCBs of different sizes. Workers either need additional auxiliary equipment to adjust the height when transferring PCBs, or the height adjustment mechanisms are complex to operate, lack stability, rely heavily on manual positioning, and lack reliable synchronous lifting mechanisms. This often leads to shelf tilting or jamming, affecting the safe storage of the boards and failing to meet the demands for efficient and convenient transport in actual production. Therefore, a new type of transfer cart with precise and flexible height adjustment is urgently needed to solve these problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a transfer vehicle for circuit board production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A transfer cart for circuit board production includes a base plate with two support columns fixedly connected to each end of the base plate. The four support columns are arranged in a rectangular pattern. The base plate includes a frame, a placement plate, and two adjustment slots. The placement plate is slidably mounted on the frame, and the two adjustment slots are fixedly connected to both ends of the frame. Several adjustment plates with the same structure are longitudinally distributed above the base plate, and a top plate is located above the adjustment plates. Both the adjustment plates and the top plate are slidably connected to the four support columns. Lifting components are provided, with two lifting components symmetrically arranged near both ends above each frame. Each lifting component includes a threaded column assembly located within the adjustment slots. The threaded column assembly consists of two threaded columns with opposite thread directions connected end-to-end. Each threaded column is threaded with a threaded sleeve. Both ends of the threaded column assembly are rotatably connected to the adjusting groove via connecting shafts. A connecting rod is rotatably connected to the top of the threaded sleeve. Connecting parts corresponding to the connecting rods are fixed at the four bottom corners of the adjusting groove and the top plate. The connecting parts are rotatably connected to the ends of the corresponding connecting rods below them. An adjusting assembly is set below each frame. The adjusting assembly includes a second connecting rod arranged parallel to the bottom of the frame. Both ends of the second connecting rod are movably inserted into two adjusting grooves and fixedly connected to worm gears. A worm wheel meshes above the worm gear and is sleeved on the connecting shaft. The end of the worm gear is connected to a second rotating shaft. The end of the second rotating shaft movably inserts into the outside of the adjusting groove and is fixedly connected to a handle.

[0006] Preferably, a mounting groove parallel to the adjustment groove and extending through its front and back is formed on the surface of the frame. A slider is fixedly installed in the mounting groove, and a slide rail arranged in the same direction as the adjustment groove is fixedly connected to the bottom of the placement plate. The slide rail and the slider are slidably connected.

[0007] Preferably, the placement plate has an anti-static layer, the top surface of the placement plate is covered with a silicone anti-slip pad, and several partitions are evenly distributed on the top of the placement plate, which are arranged in the same direction as the adjustment groove.

[0008] Preferably, both ends of the adjusting plate and both ends of the top plate are fixedly connected to corresponding slide cylinders of the support columns. The slide cylinders are movably sleeved on the corresponding support columns. The bottom of each of the four support columns is fixedly connected to a universal wheel with a braking function. The top of each of the four support columns is fixedly connected to a baffle, the diameter of which is larger than the diameter of the slide cylinder.

[0009] Preferably, a first through hole is provided at both ends of the adjusting groove, and a second through hole is provided on the side wall of the adjusting groove opposite to the frame.

[0010] Preferably, bearings are fitted into both the first and second through holes, and the connecting shaft is rotatably connected to the adjusting groove through the bearing in the first through hole.

[0011] Preferably, the end of the second rotating shaft is rotatably connected to the adjustment groove through a bearing in the second through hole, and the second rotating shaft passes through the bearing to the outside of the adjustment groove and is fixedly connected to the handle.

[0012] Preferably, a second connecting member is fixedly connected to the top of the threaded sleeve, and a first rotating shaft is fixedly connected to both ends of the connecting rod. The connecting rod is rotatably connected to the second connecting member and the connecting member respectively through the first rotating shafts at both ends.

[0013] This utility model has the following beneficial effects: 1. The transfer cart in this utility model achieves flexible adjustment of the height of the adjustment plate and the top plate through the cooperation of a unique lifting component and adjustment component. Rotating the handle of the adjustment component causes the worm gear to drive the worm wheel, which in turn rotates the threaded column assembly, driving the threaded sleeve to move along the threaded column. The lifting and lowering of the adjustment plate and the top plate is achieved through the transmission of the connecting rod. This design allows for flexible changes in the position of each bearing plate according to different workstation heights and operational needs, greatly improving the versatility and applicability of the transfer cart. It effectively solves the problem of traditional transfer carts having fixed heights and being difficult to adapt to various scenarios, thus improving the flexibility and efficiency of production transfer.

[0014] 2. The placement plate in this invention is connected to the slider via a slide rail, allowing it to slide stably on the frame and facilitating the placement and removal of circuit boards. Simultaneously, the placement plate has a built-in anti-static layer, effectively preventing static electricity from affecting the performance of the circuit boards; the silicone anti-slip pad on top prevents the circuit boards from sliding during transport, and the unidirectional partitions allow for zoned placement of the circuit boards, preventing collisions and friction. This design provides a stable and safe placement environment for the circuit boards, effectively reducing the risk of damage caused by shaking and collisions during transport, thus ensuring the quality of the circuit boards.

[0015] 3. In this utility model, the adjusting plate and the top plate are slidably connected to the support column via a sliding cylinder, ensuring the stability of the lifting process. Meanwhile, the support column has universal wheels with braking function at the bottom, allowing the transfer cart to move easily within the workshop and be stably fixed after reaching the designated position, preventing displacement during transport. Furthermore, the various components are rotatably connected via bearings and shafts, combined with precise threaded and meshing transmissions, making the entire transfer cart compact, stable in operation, and easy and labor-saving to operate, effectively improving the worker's operating experience and the safety and reliability of the transport work. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 For the present utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle; Figure 3 For the present utility model Figure 1 Enlarged schematic diagram of the structure at point B; Figure 4 This is a schematic diagram of the connection structure of the frame, lifting component, and adjusting component of this utility model; Figure 5 This is a front cross-sectional view of the frame, lifting assembly, and adjustment assembly in this utility model. Figure 6 This is a side sectional view of the frame, lifting assembly, and adjustment assembly in this utility model. Figure 7 This is a schematic diagram of the overall frame structure in this utility model.

[0017] In the diagram: 1. Base plate; 101. Frame; 101a. Mounting slot; 102. Placement plate; 103. Adjustment slot; 103a. First through hole; 103b. Second through hole; 104. Slide rail; 105. Slider; 106. Antistatic layer; 107. Silicone anti-slip pad; 108. Partition; 2. Support column; 201. Caster wheel; 202. Baffle; 3. Adjustment plate; 4. Top plate; 5. Slide cylinder; 6. Connector; 7. Lifting assembly; 701. Threaded column assembly; 701a. Connecting shaft; 702. Threaded sleeve; 702a. Second connector; 703. Connecting rod; 704. First rotating shaft; 8. Adjustment assembly; 801. Second connecting rod; 802. Worm gear; 803. Worm wheel; 804. Second rotating shaft; 805. Handle; 9. Bearing. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figures 1-7A transfer cart for circuit board production includes a base plate 1, with two support columns 2 fixedly connected to each end of the base plate 1. The four support columns 2 are arranged in a rectangular pattern. The base plate 1 includes a frame 101, a placement plate 102, and two adjustment slots 103. The placement plate 102 is slidably mounted on the frame 101, and the two adjustment slots 103 are fixedly connected to both ends of the frame 101. Several adjustment plates 3 with the same structure are longitudinally distributed above the base plate 1, and a top plate 4 is located above the adjustment plates 3. Both the adjustment plates 3 and the top plate 4 are slidably connected to the four support columns 2. Lifting components 7 are provided symmetrically near both ends above each frame 101. The lifting components 7 include a threaded column group 701 disposed in the adjustment slots 103. The threaded column group 701 is composed of two threaded columns with opposite thread directions connected end to end. Each threaded column is threaded with a screw. Both ends of the threaded sleeve 702 and the threaded column assembly 701 are rotatably connected to the adjusting groove 103 via the connecting shaft 701a. The top of the threaded sleeve 702 is rotatably connected to the connecting rod 703. The bottom corners of the adjusting groove 103 and the top plate 4 are fixed with connecting pieces 6 corresponding to the connecting rod 703. The connecting pieces 6 are rotatably connected to the ends of the corresponding connecting rods 703 below them. An adjusting assembly 8 is set below each frame 101. The adjusting assembly 8 includes a second connecting rod 801 arranged parallel to the bottom of the frame 101. The two ends of the second connecting rod 801 respectively movably pass through the two adjusting grooves 103 and are fixedly connected to the worm gear 802. A worm wheel 803 meshes above the worm gear 802. The worm wheel 803 is sleeved on the connecting shaft 701a. The end of the worm gear 802 is connected to the second rotating shaft 804. The end of the second rotating shaft 804 movably passes through the outside of the adjusting groove 103 and is fixedly connected to the handle 805.

[0020] In this embodiment, the base plate 1 serves as the basic load-bearing structure, and its frame 101 supports the placement plate 102. The placement plate 102 can slide on the frame 101 for easy placement and removal of circuit boards. The adjustment slot 103 is used to install the lifting assembly 7 and the adjustment assembly 8. The adjustment plate 3 and the top plate 4 are slidably connected to the support column 2. Together with the lifting assembly 7, they can achieve height adjustment to meet the needs of different workstations. The threaded column group 701 of the lifting assembly 7 consists of two threaded columns with opposite thread directions. When rotated, it drives the threaded sleeve 702 to move. Through the connecting rod 703 and the rotating connection of the connecting piece 6, it pushes the adjustment plate 3 and the top plate 4 to rise and fall. In the adjustment assembly 8, rotating the handle 805 drives the second rotating shaft 804, causing the worm gear 802 to rotate. Through the meshing worm wheel 803, it drives the connecting shaft 701a, thereby controlling the rotation of the threaded column group 701 to achieve adjustment of the lifting assembly 7. Ultimately, it achieves flexible adjustment of the height of each plate, improving the versatility and practicality of the transfer vehicle.

[0021] In this utility model, a mounting groove 101a is formed on the surface of the frame 101, which is parallel to the adjustment groove 103 and extends through the front and back of the frame 101. A slider 105 is fixedly installed in the mounting groove 101a. A slide rail 104 is fixedly connected to the bottom of the placement plate 102, which is arranged in the same direction as the adjustment groove 103. The slide rail 104 is slidably connected to the slider 105.

[0022] In this embodiment, a sliding guide function is achieved by opening an installation groove 101a on the surface of the frame 101 that is parallel to the adjustment groove 103 and extends through the front and rear, and fixing a slider 105 inside it; the bottom of the placement plate 102 is provided with a slide rail 104 that is arranged in the same direction as the adjustment groove 103, and the slide rail 104 is slidably connected to the slider 105, so that the placement plate 102 can move flexibly on the frame 101 along the direction of the installation groove 101a, thereby realizing the rapid adjustment and stable guidance of the position of the placement plate 102, and improving the adaptability and ease of operation of the transfer vehicle to circuit boards of different sizes.

[0023] In this utility model, the placement plate 102 has an anti-static layer 106 built in, the top surface of the placement plate 102 is covered with a silicone anti-slip pad 107, and a number of partitions 108 are evenly distributed on the top of the placement plate 102 and are arranged in the same direction as the adjustment groove 103.

[0024] In this embodiment, an antistatic layer 106 is embedded inside the placement plate 102. Made of antistatic material, this layer effectively neutralizes the static charge generated during circuit board transport, preventing static accumulation from damaging precision electronic components and significantly improving the transport safety of the circuit board. The silicone anti-slip pad 107 covering the top has a high-friction coefficient surface texture, increasing the static friction between the circuit board and the placement plate 102. Even if the transfer vehicle experiences bumps or sudden stops during movement, the circuit board can maintain a stable position, reducing the risk of physical damage caused by sliding collisions. The partitions 108, arranged in the same direction as the adjustment groove 103, divide the placement plate 102 into multiple independent storage areas. This structural design not only facilitates the classification and storage of circuit boards of different specifications or batches but also provides lateral support for the circuit boards when the transfer vehicle moves, further enhancing their stability. The synergistic effect of these three elements—static protection, anti-slip fixation, and classification isolation—comprehensively ensures the integrity of the circuit boards during transport, reducing the defect rate caused by transport and improving production efficiency.

[0025] In this utility model, both ends of the adjusting plate 3 and both ends of the top plate 4 are fixedly connected to corresponding slide cylinders 5 of the support column 2. The slide cylinder 5 is movably sleeved on the corresponding support column 2. The bottom of each of the four support columns 2 is fixedly connected to a universal wheel 201 with a braking function, and the top of each of the four support columns 2 is fixedly connected to a baffle 202. The diameter of the baffle 202 is larger than the diameter of the slide cylinder 5.

[0026] In this embodiment, the adjusting plate 3 and the top plate 4 are movably connected to the support column 2 via sliding cylinders 5 at both ends. This structural design allows the adjusting plate 3 and the top plate 4 to slide smoothly along the support column 2. Combined with the lifting assembly 7, the height of each layer can be precisely adjusted to accommodate the storage needs of circuit boards of different sizes. The universal wheels 201 with brakes at the bottom of the support column 2 provide the transfer cart with flexible mobility, allowing workers to easily push the equipment for transport within the workshop. The braking device can fix the transfer cart in a designated position to prevent accidental slippage. The baffle 202 at the top of the support column 2 has a diameter larger than the sliding cylinder 5, effectively preventing the sliding cylinder 5 from detaching from the support column 2 during lifting and lowering, ensuring the stability and safety of the structure. The combination of these three features not only improves the ease of operation of the transfer cart but also ensures its reliability in both running and stationary states, providing strong support for the efficient and safe transport of circuit boards.

[0027] In this utility model, both ends of the adjustment groove 103 are provided with first through holes 103a, and the side wall of the adjustment groove 103 opposite to the frame 101 is provided with a second through hole 103b. Bearings 9 are installed in both the first through hole 103a and the second through hole 103b. The connecting shaft 701a is rotatably connected to the adjustment groove 103 through the bearing 9 in the first through hole 103a. The end of the second rotating shaft 804 is rotatably connected to the adjustment groove 103 through the bearing 9 in the second through hole 103b. The second rotating shaft 804 passes through the bearing 9 to the outside of the adjustment groove 103 and is fixedly connected to the handle 805.

[0028] In this embodiment, the first through hole 103a at both ends of the adjusting groove 103 and the second through hole 103b on the side wall provide rotational support structures for the connecting shaft 701a and the second rotating shaft 804, respectively. The bearing 9 in the first through hole 103a enables the connecting shaft 701a to smoothly drive the threaded column assembly 701 to rotate, realizing the linear movement of the threaded sleeve 702, and thus driving the lifting assembly 7 to complete the height adjustment action; the bearing 9 in the second through hole 103b ensures the stability of the second rotating shaft 804 when transmitting torque to the handle 805, making the meshing transmission between the worm gear 802 and the worm wheel 803 more precise. This double bearing support design not only reduces the frictional resistance of the rotating parts and extends the service life of the structure, but also ensures the transmission accuracy through the centering effect of the bearing 9, making it easier for workers to operate the handle 805 and enabling precise control of the lifting height of the adjusting plate 3 and the top plate 4.

[0029] In this utility model, the top of the threaded sleeve 702 is fixedly connected to the second connecting member 702a, and both ends of the connecting rod 703 are fixedly connected to the first rotating shaft 704. The connecting rod 703 is rotatably connected to the second connecting member 702a and the connecting member 6 respectively through the first rotating shaft 704 at both ends.

[0030] In this embodiment, the second connecting member 702a at the top of the threaded sleeve 702 and the first rotating shafts 704 at both ends of the connecting rod 703 form a flexible rotating pair structure. When the threaded column assembly 701 rotates to drive the threaded sleeve 702 to make linear motion, the second connecting member 702a converts the linear motion into the swing of the connecting rod 703 through the first rotating shafts 704, thereby driving the connecting member 6 to achieve vertical displacement, and finally completing the lifting and lowering action of the adjusting plate 3 and the top plate 4. The above description is only a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the protection scope of this utility model.

Claims

1. A transfer vehicle for circuit board production, characterized in that, include: The base plate (1) has two support columns (2) fixedly connected to its two ends respectively. The four support columns (2) are arranged in a rectangular shape. The base plate (1) includes a frame (101), a placement plate (102) and two adjustment slots (103). The placement plate (102) is slidably set on the frame (101). The two adjustment slots (103) are fixedly connected to the two ends of the frame (101) respectively. Several vertically distributed adjustment plates (3) with the same structure as the base plate (1) and a top plate (4) are located above the adjustment plates (3). The top plate (4) is located above the adjustment plates (3). Both the adjustment plates (3) and the top plate (4) are slidably connected to four support columns (2). Lifting assembly (7): Two lifting assemblies (7) are symmetrically arranged near both ends of each frame (101). The lifting assembly (7) includes a threaded column group (701) in the adjustment groove (103). The threaded column group (701) is composed of two threaded columns with opposite thread directions connected end to end. Each threaded column is threaded with a threaded sleeve (702). Both ends of the threaded column group (701) are rotatably connected to the adjustment groove (103) through a connecting shaft (701a). The top of the threaded sleeve (702) is rotatably connected to a connecting rod (703). The adjustment groove (103) and the bottom four corners of the top plate (4) are fixed with connecting pieces (6) corresponding to the connecting rod (703). The connecting piece (6) is rotatably connected to the end of the corresponding connecting rod (703) below it. An adjustment assembly (8) is provided below each frame (101). The adjustment assembly (8) includes a second connecting rod (801) arranged parallel to the bottom of the frame (101). The two ends of the second connecting rod (801) are respectively movably inserted into two adjustment slots (103) and fixedly connected to a worm (802). A worm wheel (803) is engaged above the worm (802). The worm wheel (803) is sleeved on the connecting shaft (701a). The end of the worm (802) is connected to a second rotating shaft (804). The end of the second rotating shaft (804) movably inserts into the outside of the adjustment slot (103) and is fixedly connected to a handle (805).

2. The transfer vehicle for circuit board production according to claim 1, characterized in that, The frame (101) has an installation groove (101a) that is parallel to the adjustment groove (103) and extends through its front and back. A slider (105) is fixedly installed in the installation groove (101a). A slide rail (104) that is arranged in the same direction as the adjustment groove (103) is fixedly connected to the bottom of the placement plate (102). The slide rail (104) is slidably connected to the slider (105).

3. The transfer vehicle for circuit board production according to claim 1, characterized in that, The placement plate (102) has an anti-static layer (106) built in, the top surface of the placement plate (102) is covered with a silicone anti-slip pad (107), and the top of the placement plate (102) is evenly distributed with a number of partitions (108) arranged in the same direction as the adjustment groove (103).

4. The transfer vehicle for circuit board production according to claim 1, characterized in that, Both ends of the adjusting plate (3) and both ends of the top plate (4) are fixedly connected to the corresponding slide cylinders (5) of the support column (2). The slide cylinders (5) are movably sleeved on the corresponding support column (2). The bottom of the four support columns (2) are fixedly connected to universal wheels (201) with brake function. The top of the four support columns (2) are fixedly connected to baffles (202). The diameter of the baffles (202) is larger than the diameter of the slide cylinder (5).

5. A transfer vehicle for circuit board production according to claim 1, characterized in that, The adjustment groove (103) has a first through hole (103a) at both ends, and a second through hole (103b) is provided on the side wall of the adjustment groove (103) opposite to the frame (101).

6. A transfer vehicle for circuit board production according to claim 5, characterized in that, Bearings (9) are installed in both the first through hole (103a) and the second through hole (103b). The connecting shaft (701a) is rotatably connected to the adjusting groove (103) through the bearing (9) in the first through hole (103a).

7. A transfer vehicle for circuit board production according to claim 6, characterized in that, The end of the second rotating shaft (804) is rotatably connected to the adjustment groove (103) through the bearing (9) in the second through hole (103b), and the second rotating shaft (804) passes through the bearing (9) to the outside of the adjustment groove (103) and is fixedly connected to the handle (805).

8. A transfer vehicle for circuit board production according to claim 1, characterized in that, The top of the threaded sleeve (702) is fixedly connected to a second connector (702a), and both ends of the connecting rod (703) are fixedly connected to a first rotating shaft (704). The connecting rod (703) is rotatably connected to the second connector (702a) and the connector (6) respectively through the first rotating shafts (704) at both ends.

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