阅读说明：本技术 立式联动调节电路板转运车 (Vertical type linkage adjusting circuit board transfer trolley ) 是由 张丹 王栋辉 孙明明 宋朋 张标 陈修名 周子杨 陈仕林 于 2021-03-06 设计创作，主要内容包括：本发明涉及一种电路板生产设备技术领域,特别是一种PCB板转运车。该PCB线路板转运车由以下零部件组成：万向轮、底座、螺旋立柱、下层板、中间板、上层板、调高组件、齿形带。其中调高组件包括螺母和压环。通过齿形带带动螺母在螺旋立柱上转动,受螺旋立柱的约束螺母在转动的同时沿螺旋立柱上下运动,推动中间板上下移动,达到调节板间距的目的。同时通过皮带驱动各螺母在螺旋立柱上同步转动,使得各螺母升降速度一致,中间板始终处于水平状态。本发明原理简单,结构巧妙合理,使用方便,具有一定的经济效益。(The invention relates to the technical field of circuit board production equipment, in particular to a PCB transfer trolley. The PCB transfer trolley comprises the following parts: universal wheel, base, spiral stand, lower plywood, intermediate lamella, upper plate, heightening subassembly, toothed belt. Wherein heightening the subassembly and including nut and clamping ring. The toothed belt drives the nut to rotate on the spiral stand column, and the nut is restrained by the spiral stand column to move up and down along the spiral stand column while rotating, so that the intermediate plate is pushed to move up and down, and the purpose of adjusting the distance between the plates is achieved. Meanwhile, the nuts are driven by the belt to synchronously rotate on the spiral stand column, so that the lifting speeds of the nuts are consistent, and the middle plate is always in a horizontal state. The invention has simple principle, skillful and reasonable structure, convenient use and certain economic benefit.)

1. The utility model provides a vertical linkage adjusting circuit board transfer car (buggy), its technical characterstic: comprises a universal wheel (1), a base (2), a spiral upright post (3), a lower layer plate (4), a middle plate (5), an upper layer plate (6), a heightening component (7) and a toothed belt (8), wherein the heightening component (7) comprises a nut (7a) and a pressing ring (7b), the base (2) is a rectangular plate, the universal wheel (1) is arranged at the lower part of the base (2), the spiral upright post (3) is arranged at the upper part of the base (2) along the vertical direction, four circular through holes are arranged on the lower layer plate (4), the lower layer plate (4) is arranged on the spiral upright post (3) through the four circular through holes, the lower layer plate (4) is in sliding connection with the spiral upright post (3), the lower layer plate (4) is positioned at the bottom of the spiral upright post (3), the nut (7a) in the heightening component (7) is matched with the spiral upright post (3) by a spiral pair, the, the middle plate (5) is provided with four circular through holes, the middle plate (5) is arranged on the spiral upright post (3) through the four circular through holes, the middle plate (5) is connected with the spiral upright post (3) in a sliding way, the middle plate (5) is arranged on a nut (7a) in the adjusting component (7), the middle plate (5) is driven to move up and down along the spiral upright post (3) along with the action of the nut (7a), the upper plate (6) is positioned above the middle plate (5), the upper plate (6) is provided with four circular through holes, the upper plate (6) is arranged on the spiral upright post (3) through the four circular through holes, the upper plate (6) is connected with the spiral upright post (3) in a sliding way, the upper plate (6) is arranged on the nut (7a) in the adjusting component (7) and moves up and down along the spiral upright post (3) along with the action of the nut (7a), the toothed belt (8) is matched with the, realize a plurality of nuts (7a) synchronous rotation, clamping ring (7b) is installed on nut (7 a).

2. The circuit board transfer trolley according to claim 1, wherein the four corners of the lower part of the base (2) are respectively provided with a cylindrical boss structure (2b), the center of the boss structure (2b) is provided with a threaded hole, the universal wheel (1) is installed in the boss structure (2b) of the lower part of the base (2) through the threaded hole, the four corners of the upper part of the base (2) are respectively provided with a cylindrical boss structure (2c), the center of the boss structure (2c) is provided with a threaded hole, and the spiral upright post (3) is installed in the cylindrical boss structure (2c) of the upper part of the base (2) through the threaded hole.

3. The circuit board transfer trolley according to claim 1, wherein the lower plate (4), the middle plate (5) and the upper plate (6) are rectangular plates, four corners of the lower plate (4), the middle plate (5) and the upper plate (6) are provided with fillet characteristics, the four corners are respectively provided with circular through holes (4a), (5a) and (6a), the lower plate (4), the middle plate (5) and the upper plate (6) are respectively matched with the spiral upright posts through the circular through holes (4a), (5a) and (6a), the upper part of the lower plate (4) is provided with a strip-shaped groove, the upper part and the lower part of the middle plate (5) are provided with a strip-shaped groove, the fillet characteristic is provided with a contact (5b), the lower part of the upper plate (6) is provided with a strip-shaped groove, and the fillet characteristic is provided with a contact (6 b).

4. The circuit board transfer trolley of claim 1, wherein the height adjusting assembly (7) comprises a nut (7a) and a pressing ring (7b), the nut (7a) is toothed on the outer side, annular bosses are arranged on the upper portion and the lower portion, annular grooves are formed on the outer side of the annular bosses on the upper portion, threaded through holes are formed in the center of the nut (7a), the pressing ring (7b) comprises an annular ring (7b1) and an L-shaped pressing piece (7b2), the pressing ring (7b) is matched with the annular grooves in the bosses on the upper portion of the nut (7a) through the annular ring (7b1) to ensure that the pressing ring (7b) rotates around the nut (7a), and the height adjusting assembly (7) is locked with the outer contact (5b) of the middle plate (5) and the outer contact (6b) of the upper plate (6) through the L-shaped pressing piece (7b 2).

5. The vehicle according to claim 1, characterized in that said intermediate plates (5) are more than one.

6. The vehicle according to claim 1, characterized in that said castor (1) is a caster wheel with locking function.

Technical Field

The invention relates to the technical field of circuit board production equipment, in particular to a PCB transfer trolley.

Background

A PCB printed circuit board is a carrier of electronic elements, a large number of electronic elements are generally uniformly arranged on the front and back surfaces of a printed circuit board, the electronic elements on the surface of the circuit board are prevented from being extruded and scraped during transportation and temporary storage, the circuit boards cannot be contacted, meanwhile, the blank edges around the circuit board are small, great difficulty is brought to fixation, due to the requirement of a production process, when the circuit board is transported from one process to another process, the circuit boards need to be isolated and are prevented from being contacted with each other, the transportation process is generally realized by a circuit board transport vehicle, the traditional transport vehicle needs to manually adjust fixing devices on four stand columns when the spacing between the fence boards, the efficiency is low, the level of the fence boards is difficult to ensure, when the fence boards are not parallel, partial circuit boards are easily unreliable in fixation, sliding and the like can occur during transportation, and the circuit board is scratched, Fall off, affecting the quality of the product.

Disclosure of Invention

The invention aims to provide a circuit board transfer trolley, which can conveniently adjust the height of an intermediate plate, realize reliable fixation through the special self-locking function of a screw pair, realize linkage adjustment through a toothed belt, has high adjustment speed, high efficiency and good operability, and can ensure that the intermediate plate is always in a horizontal position in the adjustment process.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a circuit board transfer trolley comprises the following parts: the universal wheel, the base, the spiral stand column, the lower plate, the intermediate plate, the upper plate, the heightening assembly and the toothed belt are arranged, the heightening assembly comprises a nut and a pressing ring, the nut is driven to rotate on the spiral stand column through the toothed belt, the nut moves up and down along the spiral stand column while rotating, the intermediate plate and the upper plate are pushed to move up and down, and the purpose of adjusting the distance between the plates is achieved.

The base is a rectangular plate, universal wheels are installed on the lower portion of the base, a spiral stand column is installed on the upper portion of the base in the vertical direction, four circular through holes are formed in a lower layer plate, the lower layer plate is installed on the spiral stand column through the four circular through holes and is connected with the spiral stand column in a sliding mode, the lower layer plate is located at the bottom of the spiral stand column, a nut in the adjusting assembly is matched with the spiral stand column through a spiral pair, and the nut moves up and down and rotates left and right through the spiral pair; the middle plate is provided with four circular through holes, the middle plate is arranged on the spiral upright post through the four circular through holes, the middle plate is connected with the spiral upright post in a sliding manner, the middle plate is arranged at the upper part of the nut in the adjusting assembly, and the middle plate is driven to move up and down along the spiral upright post along with the action of the nut; the upper plate is located the intermediate lamella top, has four circular through-holes on the upper plate, and the upper plate is installed on the spiral stand through four circular through-holes, and upper plate and spiral stand sliding connection, upper plate place on the nut in the adjusting part, along with the nut action, reciprocate along the spiral stand, and toothed belt and nut cooperation realize that a plurality of nuts rotate in step, and the clamping ring is installed on the nut. Four corners of the lower part of the base are respectively provided with a cylindrical boss structure, the center of the boss structure is provided with a threaded hole, a universal wheel is arranged in the boss structure at the lower part of the base through the threaded hole, four corners of the upper part of the base are respectively provided with a cylindrical boss structure, a threaded hole is arranged at the center of the boss structure, a spiral upright post is arranged in the cylindrical boss structure at the upper part of the base through the threaded hole, a lower layer plate, a middle plate and an upper layer plate are rectangular plates, four corners of the lower layer plate, the middle plate and the upper layer plate are provided with fillet characteristics, circular through holes are respectively arranged on the four corners, the lower layer plate, the middle plate and the upper layer plate are respectively matched with the spiral upright post through the circular through holes, the upper part of the lower layer plate is,

in order to adjust the positions of the middle plate and the upper plate, height adjusting components are arranged below the middle plate and the upper plate and comprise nuts and pressure rings, teeth are arranged on the outer sides of the nuts and matched with the synchronous belts through the outer side teeth, annular bosses are arranged on the upper portion and the lower portion of the nuts, the synchronous belts are prevented from falling off through the circular bosses, annular grooves are formed in the outer sides of the annular bosses on the upper portion, and threaded through holes are formed in the centers of the nuts; the clamping ring comprises a circular ring and an L-shaped pressing sheet, the circular ring structure in the clamping ring is matched with a circular ring groove in a boss at the upper part of the nut, the clamping ring is guaranteed to rotate around the nut, and the heightening assembly is matched with the contact at the outer side of the middle plate and the contact at the outer side of the upper plate through the L-shaped pressing sheet to realize locking.

In order to enable the positions of the middle plate and the upper plate to be in a horizontal state all the time, the nuts in the height adjusting assembly are controlled by the synchronous belt to rotate synchronously.

The invention has the advantages that:

1. the invention adopts the toothed belt to drive the nuts to rotate, can realize the synchronous rotation of the nuts, has equal ascending distance of the nuts and prevents the middle plate and the upper plate from inclining.

2. According to the invention, the nut is adopted to drive the middle plate to lift and convert rotation into linear motion, so that micro distance adjustment can be realized, the movement error is small, meanwhile, the screw pair can realize self-locking, an additional fixing device is not needed, a group of nuts can be saved by installing the pressing ring on the nut, the cost is effectively saved, and the complexity of the device is reduced.

3. The circuit board transfer trolley can increase and decrease the number of the middle plate layers according to the size of the circuit board, and can replace spiral stand columns with different leads according to the size of the circuit board.

Drawings

FIG. 1 is an isometric view of a schematic structural view of a circuit board transfer trolley of the device of the invention

FIG. 2 is a schematic view of the structure of a circuit board transfer trolley base of the device of the invention

FIG. 3 is a schematic top view of a middle plate structure of the apparatus of the present invention

FIG. 4 is a partial enlarged view of a middle plate structure of the apparatus of the present invention

FIG. 5 is a front view of a middle plate structure of the device of the present invention

FIG. 6 is a schematic top view of a top plate structure of the apparatus of the present invention

FIG. 7 is a front view of a top plate structure of the apparatus of the present invention

FIG. 8 is an isometric view of a nut in the apparatus of the present invention

FIG. 9 is a front view of a nut structure of the device of the present invention

FIG. 10 is a schematic view of a structure of a middle pressure ring of the apparatus of the present invention

FIG. 11 is a schematic view of the cooperation between the height-adjusting mechanism and the middle plate in the device of the present invention

Wherein, 1 is the universal wheel, 2 is the base, 3 is the spiral stand, 4 is the lower plate, 5 is the intermediate lamella, 6 is the upper plate, 7 is the subassembly of increaseing, 8 tooth belts.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.

The toothed belt 8 is driven manually, and the toothed belt 8 drives the nut 7a in the height-adjusting component 7 to synchronously rotate on the spiral upright post 3. The nut 7a is restricted by the screw pair when rotating, moves up and down along the screw upright posts 3 to drive the middle plate 5 to lift, the distance between the plates is adjusted, the lifting distance of the nut 7a on each screw upright post 3 is controlled by the toothed belt 8 to be the same, the middle plate 5 and the upper plate 6 are ensured to be always kept in a horizontal state, and when the middle plate 5 and the upper plate 6 are adjusted to proper heights, the pressing ring b7 on the adjusting assembly 7 is rotated to be in contact with the outer side contact 5b of the middle plate 5, so that the middle plate 5 is completely fixed. According to the actual transportation requirement, the number of the middle plates 5 can be increased or decreased on the spiral upright post 3.