CN210614753U

CN210614753U - Toggle rod type mechanical edge covering press

Info

Publication number: CN210614753U
Application number: CN201921292951.5U
Authority: CN
Inventors: 张朋; 王传英; 王冬; 李尧; 赵先进; 柴恒辉; 陈超
Original assignee: Jier Machine Tool Group Co Ltd
Current assignee: Jier Machine Tool Group Co Ltd
Priority date: 2019-08-12
Filing date: 2019-08-12
Publication date: 2020-05-26
Anticipated expiration: 2029-08-12

Abstract

The utility model discloses a toggle rod type mechanical edge covering press machine, which comprises a base, upright posts, a crossbeam, a slide block, an edge covering die, an overload protection device, a transmission mechanism and a motor reduction gear, wherein the upright posts are fixed on two sides of the base, guide rails are arranged on the inner sides of the upright posts, and the edge covering die is arranged at the bottom of the slide block; the cross beam is arranged at the top of the upright post, the upper end of the overload protection device is nested at the left end and the right end of the cross beam, and the lower end of the overload protection device is connected with the transmission mechanism; the transmission mechanism comprises a lead screw, a nut, a connecting block and two sets of toggle rod mechanisms which are symmetrically arranged. The utility model discloses compact structure, reinforcement effect has, the working stroke is big, drive mechanism synchronous motion precision is adjustable, the working process has the overload protection function.

Description

Toggle rod type mechanical edge covering press

Technical Field

The utility model relates to a press, concretely relates to toggle rod type machinery press of borduring belongs to press machinery technical field.

Background

The edge covering press is mainly used for trimming and wrapping the outline edges of external covering parts such as automobiles, household appliances, hardware and the like, and the process characteristics of the edge covering process require that the edge covering equipment has large working stroke, low speed of a working section slide block, uniform motion as far as possible and compact integral size of the equipment so as to meet the requirements of part edge covering and equipment installation space. The mechanical press used for the stamping process can not be directly used for the edge covering process, mainly because the traditional crank type and multi-connecting rod type mechanical presses have larger working stroke, which causes the problems of larger size of a transmission mechanism, higher size of a machine body for supporting the transmission mechanism, higher manufacturing cost of equipment and the like; at present, the edge covering process uses a plurality of hydraulic edge covering presses, and the following problems mainly exist: in the working process, the hydraulic taping machine has oil leakage and oil leakage phenomena, pollutes the working environment, needs to replace hydraulic oil periodically, and has high energy consumption and low production efficiency.

Disclosure of Invention

The utility model aims to solve the technical problem that to the defect that prior art exists, a compact structure, drive mechanism synchronous motion precision adjustable toggle rod formula machinery press of borduring is provided.

In order to solve the technical problem, the utility model provides a toggle rod type mechanical edge covering press machine, which comprises a base, a stand column, a cross beam, a slide block, an edge covering die, an overload protection device, a transmission mechanism and a motor speed reducer, wherein the stand column is vertically fixed on two sides of the base, a guide rail is arranged on the inner side surface of the stand column, and the edge covering die is arranged at the bottom of the slide block; the sliding block is attached to the guide rail and slides up and down along the guide rail; the cross beam is arranged at the top of the upright post, the upper end of the overload protection device is nested at the left end and the right end of the cross beam, and the lower end of the overload protection device is connected with the transmission mechanism; the transmission mechanism comprises a lead screw, a nut, a connecting block and two sets of toggle rod mechanisms which are symmetrically arranged, the lead screw is vertically arranged in a fixed support of the cross beam, the nut is nested in a central hole of the connecting block, the upper end of the lead screw is connected with the motor speed reducer, the upper end of the toggle rod mechanism is hinged with the overload protection device, and the lower end of the toggle rod mechanism is hinged with the sliding block through a hinged support II; the motor speed reducer drives a screw pair consisting of a screw rod and a nut, drives the connecting block and the toggle rod mechanism to move, and further drives the sliding block and the edge covering die to move up and down.

The toggle rod mechanism comprises a connecting rod, a rocker and a tripod, the upper end of the connecting rod is hinged with a first hinged support of the overload protection device through an eccentric pin shaft, the lower end of the connecting rod is hinged with an upper arm hole of the tripod through a pin shaft, the upper end of the rocker is hinged with a hinged hole of the connecting block through a pin shaft, the lower end of the rocker is hinged with a middle hole of the tripod through a pin shaft, and a lower arm hole of the tripod is hinged with a second hinged support of the sliding block through a pin shaft.

The overload protection device comprises a cylinder body, a piston, a spring, hydraulic oil, an unloading valve and an oil tank, wherein a first hinged support is arranged at the lower end of the piston, an oil cavity is formed between the upper top surface of the piston and the upper top surface of the cylinder body, the hydraulic oil is injected into the oil cavity, the pressure reaches a set value, when the first hinged support bears overlarge load, the unloading valve works for unloading, the hydraulic oil overflows and flows into the oil tank, the first hinged support is supported by the spring to move upwards, and a slide block is driven to move upwards for a certain distance.

The motor reduction gear consists of a servo motor and a reduction gear, and the reduction gear is a multi-stage gear reduction box or a worm and gear box.

Has the advantages that: the utility model adopts toggle rod mechanism as the transmission rod system, has reinforcement effect, can improve the stress condition of the lead screw, simultaneously, leads the slide block to have low speed when working downwards and long time of uniform motion, and leads the slide block to return in an accelerating way when moving in a return stroke; the hydraulic protection device is used for preventing the occurrence of overload condition in the working process of the equipment; the overload protection device is hinged with the connecting rod by using the eccentric pin shaft, and the position of the eccentric pin shaft in the hinged support is rotated, so that the fine adjustment of the position of the connecting rod is realized, and the influence of a machining error on the motion synchronism of the transmission mechanism is avoided; the set of transmission mechanism does not need a larger machine body structure for supporting, thereby reducing the height of the machine body and the weight of the whole machine and solving the problems existing in the prior art. Compact structure, force increasing effect, large working stroke, adjustable synchronous motion precision of the transmission mechanism and overload protection function in the working process.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional view of the transmission mechanism of the present invention;

fig. 3 is a schematic structural view of the overload protection device of the present invention;

fig. 4 is a schematic structural view of the eccentric pin shaft of the present invention.

In the figure: the device comprises a cross beam 1, a stand column 2, a sliding block 3, a sliding block guide rail 4, a base 5, a speed reducing device 6, a lead screw 7, a screw nut 8, a connecting block 9, an overload protection device 10, a connecting rod 11, a rocker 12, a tripod 13, an eccentric pin 14, a servo motor 15, a cylinder body 16, a piston 17, a spring 18, hydraulic oil 19, an unloading valve 20, an oil tank 21, an eccentric pin 22, a hemming die 23, a hinged support I24 and a hinged support II 25.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention.

The utility model provides a toggle rod formula machinery press of borduring, including base 5, stand 2, crossbeam 1, slider 3, the mould 23 of borduring, overload protection device 10, drive mechanism and motor decelerator.

The upright post 2 is vertically fixed on two sides of the base 5, the inner side surface of the upright post 2 is provided with a guide rail 4, and the edge covering die 23 is arranged at the bottom of the sliding block 3; the sliding block 3 is jointed with the guide rail 4 and slides up and down along the guide rail 4.

The cross beam 1 is arranged at the top of the upright post 2, the upper end of the overload protection device 10 is nested at the left end and the right end of the cross beam 1, and the lower end of the overload protection device is connected with the transmission mechanism.

Fig. 2 is a schematic sectional view of the transmission mechanism of the present invention.

The transmission mechanism comprises a lead screw 7, a nut 8, a connecting block 9 and two sets of toggle rod mechanisms which are symmetrically arranged, the lead screw 7 is vertically installed in a fixed support of the cross beam 1, the nut 8 is nested in a central hole of the connecting block 9, the upper end of the lead screw 7 is connected with a motor speed reducer, the upper end of the toggle rod mechanism is hinged with an overload protection device 10, and the lower end of the toggle rod mechanism is hinged with the sliding block 3 through a second hinged support 25; the motor speed reducer drives a screw pair formed by a screw 7 and a nut 8, drives the connecting block 9 and the toggle rod mechanism to move, and further drives the sliding block 3 and the edge covering die 23 to move up and down.

The toggle rod mechanism comprises a connecting rod 11, a rocker 12 and a tripod 13, wherein the upper end of the connecting rod 11 is hinged with a first hinged support 24 of the overload protection device 10 through an eccentric pin 22 (shown in figure 4), the lower end of the connecting rod 11 is hinged with an upper arm hole of the tripod 13 through a pin 14, the upper end of the rocker 12 is hinged with a hinged hole of the connecting block 9 through the pin 14, the lower end of the rocker 12 is hinged with a middle hole of the tripod 13 through the pin 14, and a lower arm hole of the tripod 13 is hinged with a second hinged support 25 of the sliding block 3 through the pin 14.

Fig. 3 is a schematic structural view of the overload protection apparatus of the present invention.

The overload protection device 10 comprises a cylinder body 16, a piston 17, a spring 18, hydraulic oil 19, an unloading valve 20 and an oil tank 21, wherein a first hinged support 24 is arranged at the lower end of the piston 17, an oil cavity is formed between the upper top surface of the piston 17 and the upper top surface of the cylinder body 16, the hydraulic oil 19 is injected into the oil cavity, the pressure reaches a set value, when the first hinged support 24 bears excessive load, the unloading valve 20 works and unloads, the hydraulic oil 19 overflows and flows into the oil tank 21, the spring 18 supports the first hinged support 24 to move upwards, and the slide block 3 is driven to move upwards for a certain distance through.

The motor reduction gear consists of a servo motor 15 and a reduction gear 6, and the reduction gear 6 is a multi-stage gear reduction box or a worm gear box.

The servo motor 15 outputs power to drive the screw 7 to rotate around the axis of the servo motor after being decelerated by the decelerating device 6, the screw 8 and the connecting block 9 are driven to move up and down along the axis of the screw 7, the rocker 12 hinged with the connecting block 9 makes plane motion, the connecting rod 11 makes swing motion, and the triangular frame 13 makes plane motion, so that the downward speed of the sliding block 3 in a working stroke is low, the uniform motion time is long, and the sliding block 3 returns in an accelerating manner during return stroke.

Compared with the prior art, the utility model, the transmission rod system selects the lead screw mechanism to connect and cooperate with the toggle rod mechanism, so that the working stroke of the slide block is large, the force increasing effect is achieved, the stress condition of the lead screw can be improved, and simultaneously, the slide block has the working characteristics of uniform stamping and accelerated return stroke; the hydraulic protection device is used for preventing the overload condition of the equipment in the working process, the overload protection device is hinged with the connecting rod by the eccentric pin shaft, the position of the connecting rod is finely adjusted by rotating the eccentric pin shaft, the influence of machining errors on the motion synchronism of the transmission mechanism is avoided, the motion precision of the whole machine is improved, the transmission mechanism does not need a larger machine body structure for supporting, the whole structure of the equipment is compact, and the problems in the prior art are solved. Compared with a hydraulic edge covering press machine, the mechanical edge covering press machine has the advantages of no pollution to the working environment, low working noise, high production efficiency and the like, so that the mechanical edge covering press machine with simple structure, high working precision, large reinforcement and large working stroke needs to be researched and developed.

The above-described embodiments of the present invention are merely exemplary to aid those skilled in the art in further understanding the present invention, but are not intended to limit the present invention in any way. It should be noted that, without departing from the concept of the present invention, several modifications and improvements can be made, which all fall within the protection scope of the present invention.

Claims

1. The utility model provides a toggle rod formula machinery press of borduring which characterized in that: the device comprises a base (5), upright posts (2), a cross beam (1), a sliding block (3), a wrapping die (23), an overload protection device (10), a transmission mechanism and a motor speed reducer, wherein the upright posts (2) are vertically fixed on two sides of the base (5), guide rails (4) are arranged on the inner side surfaces of the upright posts (2), and the wrapping die (23) is arranged at the bottom of the sliding block (3); the sliding block (3) is attached to the guide rail (4) and slides up and down along the guide rail (4); the cross beam (1) is arranged at the top of the upright post (2), the upper end of the overload protection device (10) is nested at the left end and the right end of the cross beam (1), and the lower end of the overload protection device is connected with the transmission mechanism; the transmission mechanism comprises a lead screw (7), a nut (8), a connecting block (9) and two sets of toggle rod mechanisms which are symmetrically arranged, the lead screw (7) is vertically installed in a fixed support of the cross beam (1), the nut (8) is nested in a central hole of the connecting block (9), the upper end of the lead screw (7) is connected with a motor speed reducer, the upper end of the toggle rod mechanism is hinged with an overload protection device (10), and the lower end of the toggle rod mechanism is hinged with the sliding block (3) through a second hinged support (25); the motor speed reducer drives a screw pair formed by a lead screw (7) and a nut (8) to drive a connecting block (9) and a toggle rod mechanism to move, and further drives a sliding block (3) and a binding die (23) to move up and down.

2. The toggle mechanical hemming press of claim 1 wherein: the toggle rod mechanism comprises a connecting rod (11), a rocker (12) and a tripod (13), wherein the upper end of the connecting rod (11) is hinged with a first hinged support (24) of the overload protection device (10) through an eccentric pin shaft (22), the lower end of the connecting rod (11) is hinged with an upper arm hole of the tripod (13) through a pin shaft (14), the upper end of the rocker (12) is hinged with a hinged hole of a connecting block (9) through a pin shaft (14), the lower end of the rocker (12) is hinged with a middle hole of the tripod (13) through a pin shaft (14), and a lower arm hole of the tripod (13) is hinged with a second hinged support (25) of a sliding block (3) through a pin shaft (14).

3. The toggle mechanical hemming press of claim 1 wherein: the overload protection device (10) comprises a cylinder body (16), a piston (17), a spring (18), hydraulic oil (19), an unloading valve (20) and an oil tank (21), wherein a first hinged support (24) is arranged at the lower end of the piston (17), an oil cavity is formed between the upper top surface of the piston and the upper top surface of the cylinder body (16), the hydraulic oil (19) is injected into the oil cavity, the pressure reaches a set value, when the first hinged support (24) bears excessive load, the unloading valve (20) works to unload, the hydraulic oil (19) overflows into the oil tank (21), the spring (18) supports the first hinged support (24) to move upwards, and a slide block (3) is driven to move upwards for a certain distance through a toggle rod mechanism.

4. The toggle mechanical hemming press according to claim 1, 2 or 3 wherein: the motor reduction gear consists of a servo motor (15) and a reduction gear (6), and the reduction gear (6) is a multi-stage gear reduction box or a worm and gear box.