阅读说明：本技术 一种发动机缸体吊具 (Engine cylinder block hoist ) 是由 包文军 马金荣 刘伟嘉 于 2021-07-14 设计创作，主要内容包括：一种发动机缸体吊具,包括外罩、带定位块的夹紧臂、定位销、连杆、导向杆、限位块、复位弹簧、吊杆、导向滑轨和导向挂钩；两个夹紧臂安装于吊具上,吊具通过定位销与发动机缸体的上端面相对,外罩与安装板构成的腔体内装配四组连杆机构,吊杆与导向杆铆接成十字状,导向杆通过其两端的导向销与连杆上的导向槽构成移动副,连杆的一端铰接销轴,连杆上的滑槽与夹紧臂上的铰接轴配合构成旋转副,吊杆上的驱动销通过轨迹块沿滑轨构成移动副,轨迹块的一侧设置限位块,其下方设有复位弹簧,限位块与棘爪相卡接。该工装集装夹、定位、锁止和导向多功能于一体,操作简单,便捷省力,可广泛用于发动机批量生产。(An engine cylinder body lifting appliance comprises an outer cover, a clamping arm with a positioning block, a positioning pin, a connecting rod, a guide rod, a limiting block, a return spring, a hanging rod, a guide sliding rail and a guide hook; two clamping arms are installed on a lifting appliance, the lifting appliance is opposite to the upper end face of an engine cylinder body through a positioning pin, four groups of connecting rod mechanisms are assembled in a cavity formed by an outer cover and an installation plate, a lifting rod and a guide rod are riveted into a cross shape, the guide rod and a guide groove in a connecting rod form a moving pair through guide pins at two ends of the guide rod, one end of the connecting rod is hinged with a pin shaft, a sliding groove in the connecting rod and a hinged shaft on the clamping arm are matched to form a rotating pair, a driving pin on the lifting rod forms a moving pair along a sliding rail through a track block, a limiting block is arranged on one side of the track block, a reset spring is arranged below the track block, and the limiting block is clamped with a pawl. The tool integrates clamping, positioning, locking and guiding functions, is simple to operate, convenient and labor-saving, and can be widely applied to batch production of engines.)

1. The engine cylinder body lifting appliance is characterized by comprising an outer cover (1), a clamping arm (2) with a positioning block, a positioning pin (3), a connecting rod (4), a guide rod (5), a limiting block (6), a return spring (7), a suspender (8), a guide sliding rail (9) and a guide hook (10); the two clamping arms (2) are arranged on a lifting appliance, the lifting appliance is opposite to the upper end surface of the engine cylinder body through the positioning pin (3), four groups of link mechanisms are assembled in a cavity formed by the outer cover (1) and the mounting plate (11), the suspender (8) and the guide rod (5) are riveted into a cross shape, the guide rod (5) and a guide groove on the connecting rod (4) form a sliding pair through guide pins (13) at two ends of the guide rod, one end of the connecting rod (4) is hinged with a pin shaft (12), a chute on the connecting rod (4) is matched with a hinged shaft (14) on the clamping arm (2) to form a rotating pair, a driving pin (15) on the suspension rod (8) forms a sliding pair along a sliding rail (17) through a track block (16), a limit block (6) is arranged on one side of the track block (16), a return spring (7) is arranged below the limiting block, and the limiting block (6) is clamped with the pawl (18).

2. An engine block spreader according to claim 1, wherein the mounting plate (11) has mounted thereon guide hooks (10) for positioning guides when the engine block is dropped into an assembly line pallet.

3. An engine block spreader according to claim 1, wherein the boom (8) extends through the top of the housing (1) to the outside.

4. The engine block sling according to claim 1, wherein the positioning block of the clamping arm (2) is connected with the guide rail (9) fixed to the bottom end of the mounting plate (11) to form a sliding pair.

Technical Field

The invention belongs to the technical field and particularly relates to an engine cylinder body lifting appliance.

Background

The engine cylinder body is heavier usually, and the unable direct hoist that directly removes of both hands, so need use the hoist frock that the hoist cooperation is fit for during cylinder body online assembly to the cylinder body is pressed from both sides tightly to the requirement at the in-process that removes, prevents that the cylinder body from falling, realizes the transfer of cylinder body from the storage frame to assembly line tray.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide the engine cylinder body lifting appliance which can realize accurate positioning of a tool and parts, prevent an engine from falling off in the transferring process, ensure that a cylinder body can accurately fall on a tray through the connection of a guide hanging mechanism and an assembly line body device and protect the machining surface of the cylinder body from being scratched.

The invention provides an engine cylinder body lifting appliance which comprises an outer cover (1), a clamping arm (2) with a positioning block, a positioning pin (3), a connecting rod (4), a guide rod (5), a limiting block (6), a return spring (7), a suspender (8), a guide sliding rail (9) and a guide hook (10); two clamping arms (2) are installed on a lifting appliance, the lifting appliance is opposite to the upper end face of an engine cylinder body through a positioning pin (3), four groups of connecting rod mechanisms are assembled in a cavity formed by an outer cover (1) and an installation plate (11), a lifting rod (8) and a guide rod (5) are riveted into a cross shape, the guide rod (5) and a guide groove in the connecting rod (4) form a moving pair through guide pins (13) at two ends of the guide rod, one end of the connecting rod (4) is hinged with a pin shaft (12), a sliding groove in the connecting rod (4) is matched with a hinged shaft (14) in the clamping arms (2) to form a rotating pair, a driving pin (15) in the lifting rod (8) forms a moving pair through a track block (16) along a sliding rail (17), a limiting block (6) is arranged on one side of the track block (16), a reset spring (7) is arranged below the track block, and the limiting block (6) is clamped with a pawl (18).

As a further technical scheme of the invention, a guide hook (10) for positioning and guiding when the engine cylinder body falls into an assembly line tray is arranged on the mounting plate (11).

Further, the hanger bar (8) extends to the outside through the top of the housing (1).

Furthermore, a positioning block of the clamping arm (2) is connected with a guide slide rail (9) fixed at the bottom end of the mounting plate (11) to form a moving pair.

The tool has the advantages that the tool integrates multiple functions of clamping, positioning, locking and guiding, the positioning pin is connected with the cylinder body in a positioning mode to ensure accurate positioning of the tool and parts, the cylinder body is clamped by the 2 clamping arms to prevent an engine from falling off in the transferring process, the inside of the lifting appliance transfers movement through the connecting rod mechanism, so that clamping and loosening of the cylinder body are achieved, the cylinder body is connected with an assembly line body device through the guiding hanging mechanism to ensure that the cylinder body can accurately fall on a tray, and the machining surface of the cylinder body is protected from being scratched. The lifting appliance has compact and reliable overall design and obviously improves the lifting efficiency.

Drawings

FIG. 1 is a schematic view of the external structure of the present invention

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic view of a portion of the present invention in FIG. 1;

FIG. 4 is a partial schematic view of the present invention in FIG. 2;

fig. 5 is a schematic view of the limiting mechanism of the present invention.

Detailed Description

Referring to fig. 1 to 5, the present embodiment provides an engine cylinder block hanger, which includes an outer cover 1, a clamping arm 2 with a positioning block, a positioning pin 3, a connecting rod 4, a guide rod 5, a limiting block 6, a return spring 7, a suspension rod 8, a guide sliding rail 9, and a guide hook 10; two clamping arms 2 are installed on a lifting appliance, the lifting appliance is opposite to the upper end face of an engine cylinder body through a positioning pin 3, four groups of link mechanisms are assembled in a cavity formed by an outer cover 1 and an installation plate 11, a lifting rod 8 and a guide rod 5 are riveted into a cross shape, the guide rod 5 and a guide groove on a connecting rod 4 form a moving pair through guide pins 13 at two ends of the guide rod, one end of the connecting rod 4 is hinged with a pin shaft 12, a sliding groove on the connecting rod 4 is matched with a hinged shaft 14 on the clamping arms 2 to form a rotating pair, a driving pin 15 on the lifting rod 8 forms a moving pair along a sliding rail 17 through a track block 16, a limiting block 6 is arranged on one side of the track block 16, a return spring 7 is arranged below the limiting block 6, and the limiting block 6 is clamped with a pawl 18.

The mounting plate 11 is provided with a guide hook 10 for positioning and guiding when the engine cylinder body falls into an assembly line tray.

The boom 8 extends through the top of the housing 1 to the outside.

The positioning block of the clamping arm 2 is connected with the guide slide rail 9 fixed at the bottom end of the mounting plate 11 to form a moving pair.

The specific use method of the tool is as follows,

clamping the engine cylinder block:

when the hanger rod 8 is moved downwards, the guide rod 5 also moves downwards synchronously, the guide pins 13 at the two ends of the guide rod push the connecting rod 4, the connecting rod 4 rotates around the pin shaft 12, the clamping arm 2 is driven to expand outwards through the hinge pin 14, meanwhile, the driving pin 15 assembled on the hanger rod 8 pushes the track block 16 to move along the horizontal direction of the slide rail 17, the pawl 18 is driven to move along the horizontal direction, the pawl 18 is clamped into the first gear groove of the limiting block 6 under the action of the torsion spring, and the hanger is locked in an open state.

The lifting tool is moved to the position above the cylinder body, and the position is determined through the positioning pin 3 and the upper end face of the engine cylinder body. The boom 8 is then lifted upwards and the gripping arms 2 are driven by the links 4 to move horizontally inwards, gripping the cylinder from both sides simultaneously. At the moment, the track block 16 is pushed by the driving pin 15 to continue to move along the horizontal direction of the sliding rail 17, the pawl 18 is driven to move in the horizontal direction, the pawl 18 is clamped into the No. 2 blocking groove of the limiting block 6 under the action of the torsion spring, and the lifting appliance is locked in a clamping state.

Loosening the engine cylinder body:

after the lifting appliance and the cylinder body are moved to an assembly line through the crane, the guide hanging mechanism 10 is connected with a guide mechanism of the assembly line, and the engine is located on an engine tray. The boom 8 is then moved downwards and the gripping arms 2 are moved horizontally outwards by the connecting rods 4, releasing the cylinders from both sides simultaneously. At the moment, the track block 16 is pushed by the driving pin 15 to continue to move along the horizontal direction of the sliding rail 17, the pawl 18 is driven to move in the horizontal direction, the pawl 18 is clamped into the No. 3 blocking groove of the limiting block 6 under the action of the torsion spring, and the lifting appliance is locked in an open state.

After the hanger is separated from the engine cylinder body, the hanger rod 8 is lifted upwards by force, at the moment, the driving pin 15 slides out from the upper part of the track block 16, the pawl 18 is lifted by overcoming the force of the torsion spring, and the track block 16 is reset along the slide rail 17 under the action of the spring 7.

The tool integrates clamping, positioning, locking and guiding functions, is simple to operate, convenient and labor-saving, and can be widely applied to batch production of engines.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to further illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, which is intended to be protected by the appended claims. The scope of the invention is defined by the claims and their equivalents.