CN206796608U - A kind of high-speed blanking press structure - Google Patents

Abstract

The utility model discloses a high-speed press structure in the field of presses, comprising a fuselage and a workbench, a connecting rod connected to the crankshaft, a screw rod hinged at the lower end of the connecting rod, a slider arranged at the lower end of the screw rod, and a slider connected to the upper side of the slider There is a middle guide post, which is provided with a mounting groove, and the screw is set in the installation groove. There is a horizontal plate in the middle of the fuselage, and a center guide post hole is provided on the horizontal plate. Side guide column, the workbench is provided with a side guide column seat, and a side guide post hole is provided on the side guide post seat; a pair of balance connecting rods are provided on the crankshaft, a balance block is provided above the balance link, and a support is provided at the lower part of the balance block Shaft, the upper ends of the two balance connecting rods are all hinged on the support shaft, the fuselage is provided with a guide rod, the balance block is provided with a guide hole, the guide rod is inserted into the guide hole, and the guide rod and the guide hole are clearance matched. The utility model makes the guide more stable when the slide block of the press moves up and down, reduces the vibration of the body of the press, and is suitable for high-speed precision presses.

Description

A high-speed press structure

technical field

The utility model belongs to the field of presses, in particular to a high-speed press structure.

Background technique

In the prior art, there is a high-speed precision press, its patent application number: 200910031498.7; application date: 2009.05.08; its structure includes double crank rods with a phase difference of 180 degrees. The other end is connected with the auxiliary slider through the auxiliary connecting rod. The same multi-bar branch chain is symmetrically arranged on the left and right sides of the moving slider and the punching slider. Through the multi-bar branch chain, the moving slider and the punching slider are connected Blocks are connected together. The moving slider reciprocates up and down under the drive of the double crank rod and the main connecting rod. The up and down reciprocating motion pushes the lower upper connecting rod and the swing block to swing on both sides through the push rods of the two multi-rod branch chains, and then drives the stamping slider. The block reciprocates up and down. The disadvantage is that the slider is kept in a horizontal state through two symmetrical motion branch chains, and the force balance between the slider and the double crank rod is ensured. The disadvantage is that the structure of the multi-bar branch chain is complicated. , it is necessary to set multiple connecting rods, which takes up more space, resulting in a compact structure of the press.

Utility model content

The purpose of this utility model is to provide a high-speed press structure, which can make the guide more stable when the press slider reciprocates up and down, balance the inertial force generated by the rotation of the crankshaft and the sliding of the slider through the balance block, and reduce the pressure on the press body. Vibration, suitable for high-speed precision presses.

The purpose of this utility model is achieved in this way: a high-speed press structure, including a fuselage and a workbench, the workbench is provided with a lower template, the upper part of the fuselage is horizontally provided with a rotatable crankshaft, and one end of the crankshaft is connected to the rotary drive mechanism Transmission connection, the crankshaft is connected with a connecting rod, the lower end of the connecting rod is hinged with a screw rod, the lower end of the screw rod is provided with a slider, the upper side of the slider is fixedly connected with a vertical middle guide post, and the middle guide post is provided with a It runs through the installation groove of the middle guide post, the screw is set in the installation groove of the middle guide post, a horizontal plate is provided in the middle of the fuselage, and a middle guide post hole matching the middle guide post is provided on the horizontal plate, so The middle guide post passes through the middle guide post hole, side guide posts are vertically arranged at the four top corners of the slider, side guide post seats are respectively provided on the workbench corresponding to each side guide post, and the side guide posts A side guide post hole is vertically opened on the column seat, and the side guide post is inserted into the side guide post hole of the corresponding side guide post seat; a pair of balance connecting rods are symmetrically arranged on the crankshaft along the axial direction, and the top of the balance connecting rod A balance weight is provided, and the lower part of the balance weight is provided with a support shaft horizontally. The upper ends of the two balance connecting rods are hinged on the support shaft. The corresponding balance weight on the fuselage is provided with a vertical guide rod, and a guide hole is set on the balance weight. , the guide rod is inserted into the guide hole, and the guide rod is in clearance fit with the guide hole.

When the utility model works, the rotary drive mechanism drives the crankshaft to rotate, the crankshaft drives the connecting rod to swing, the connecting rod drives the slider to move up and down through the screw rod, the middle guide post on the upper side of the slider moves up and down in the middle guide post hole, and the side guide post moves up and down in the middle guide post hole. The side guide hole of the side guide post seat moves up and down, and the middle guide post and four side guide posts play a guiding role; while the crankshaft rotates, it also drives the balance connecting rod to swing, and the balance connecting rod drives the balance block to move up and down along the guide rod. Compared with the prior art, the utility model has the beneficial effects that: the middle guide post and the middle guide post hole, the side guide post and the side guide post hole are all in contact with the side of the cylinder, preventing the plane contact between the slider and the guide rail , the four side guide pillars and the middle guide pillar guide the slider, and the slider slides more smoothly. The balance block can balance the unbalanced force generated by the circumferential rotation of the crankshaft and the unbalanced force generated by the slider sliding up and down, and reduce the imbalance caused by inertia. Body vibration caused by force, suitable for precision presses with sliders sliding at high speed.

As a further improvement of the present utility model, a middle guide post copper sleeve is provided in the middle guide post hole, and a side guide post copper sleeve is provided in the side guide post hole. The copper sleeve of the middle guide post and the copper sleeve of the side guide post can reduce the friction generated when the guide post moves, and protect the guide post and the guide post hole.

As a further improvement of the utility model, the upper end of the side guide post is provided with a side guide post cover. The side guide post gland connects the guide post and the slider more closely, and the side guide post is more stably connected to the slider.

As a further improvement of the utility model, the drive mechanism includes a motor, the output end of the motor is provided with a motor wheel, and one end of the crankshaft is provided with a flywheel, and the motor wheel and the flywheel are connected through a transmission belt. The motor drives the motor wheel to rotate, the motor wheel drives the flywheel to rotate through the transmission belt, and the flywheel drives the crankshaft to rotate. The transmission structure is simple and the crankshaft rotates at a higher speed, which is suitable for high-speed precision presses.

As a further improvement of the utility model, a pair of guide holes are arranged symmetrically on the left and right sides of the balance weight, and two guide rods are arranged on the fuselage, each guide rod is respectively inserted into the corresponding guide hole, and a limit nut is provided on the upper end of the guide rod. The two guide rods make the balance weight more stable when it moves up and down, and the balance weight starts to move downward when it moves upwards to contact with the limit nut, which plays a position-limiting role.

Description of drawings

Fig. 1 is the three-dimensional structural diagram of the present utility model.

Fig. 2 is a schematic diagram of the transmission structure of the utility model.

Fig. 3 is a sectional view of the utility model.

Fig. 4 is a structural schematic diagram of the central guide pillar.

Fig. 5 is a schematic structural diagram of a side guide post.

Fig. 6 is a schematic diagram of a partial structure of the balance weight.

Among them, 1 fuselage, 2 worktable, 3 lower template, 4 crankshaft, 5 connecting rod, 6 screw, 7 slider, 8 middle guide column, 9 horizontal plate, 10 side guide column, 11 side guide column seat, 12 balance Connecting rod, 13 balance weight, 14 support shaft, 15 middle guide post copper sleeve, 16 side guide post copper sleeve, 17 side guide post gland, 18 motor, 18a motor wheel, 19 flywheel, 20 guide rod, 21 limit nut , 22 transmission belts.

detailed description

As shown in Figure 1-6, it is a high-speed press structure, including a fuselage 1 and a workbench 2. The workbench 2 is provided with a lower template 3, and the upper part of the fuselage 1 is horizontally provided with a rotatable crankshaft 4. One end of the crankshaft 4 It is connected with the transmission of the rotary drive mechanism, and the drive mechanism includes a motor 18, the output end of the motor 18 is provided with a motor wheel 18a, and one end of the crankshaft 4 is provided with a flywheel 19, and the motor wheel 18a and the flywheel 19 are connected through a transmission belt 22; the crankshaft 4 is connected with a connecting rod 5, the lower end of the connecting rod 5 is hinged with a screw rod 6, the lower end of the screw rod 6 is provided with a slider 7, the upper side of the slider 7 is fixedly connected with a vertical middle guide post 8, and the middle guide post 8 is provided with Go through the installation groove of the middle guide post 8 from top to bottom, the screw rod 6 is arranged in the installation groove of the middle guide post 8, the middle part of the fuselage 1 is provided with a horizontal plate 9, and the horizontal plate 9 is provided with a matching with the middle guide post 8. The middle guide post hole, the middle guide post 8 passes through the middle guide post hole, the four top corners of the slider 7 are vertically provided with side guide posts 10, and the corresponding side guide posts 10 are respectively provided with side guide posts on the workbench 2. The column base 11, the side guide column base 11 is vertically provided with a side guide post hole, and the side guide post 10 is inserted into the side guide post hole of the corresponding side guide post base 11; a pair of balance connecting rods are arranged axially symmetrically on the crankshaft 4 12. A balance block 13 is provided above the balance link 12, and a support shaft 14 is horizontally provided at the lower part of the balance block 13. The upper ends of the two balance links 12 are hinged on the support shaft 14, and the corresponding balance block 13 on the body 1 Vertical guide rod 20, guide hole is set on the balance weight 13, guide rod 20 is inserted in the guide hole, guide rod 20 and guide hole clearance fit. A middle guide post copper sleeve 15 is arranged in the middle guide post hole, and a side guide post copper sleeve 16 is arranged in the side guide post hole. The upper end of the side guide post 10 is provided with a side guide post cover 17 . A pair of guide holes are symmetrically arranged on the balance weight 13. Two guide rods 20 are arranged on the body 1. Each guide rod 20 is respectively inserted into the corresponding guide holes.

During work, the motor 18 drives the motor wheel 18a to rotate, the motor wheel 18a drives the flywheel 19 to rotate through the transmission belt 22, the flywheel 19 drives the crankshaft 4 to rotate, the crankshaft 4 drives the connecting rod 5 to swing, and the connecting rod 5 drives the slider 7 to move up and down through the screw rod 6. The middle guide post 8 on the upper side of the slider 7 moves up and down in the middle guide post hole, and the side guide posts 10 move up and down in the side guide holes of the side guide post seats 11, and the middle guide post 8 and four side guide posts 10 play a role. Guiding effect: when the crankshaft 4 rotates, it also drives the balance link 12 to swing, and the balance link 12 drives the balance weight 13 to move up and down along the guide rod 20 . The advantage of this device is that: the middle guide post 8 and the middle guide post hole, the side guide post 10 and the side guide post hole are all in contact with the side of the cylinder, preventing the slide block 7 from being in plane contact with the guide rail, and the four side guide posts 10 and the middle guide column 8 are guided by the slider 7, the slider 7 slides more smoothly, the balance block 13 can balance the unbalanced force generated by the circumferential rotation of the crankshaft 4, and the unbalanced force generated by the sliding of the slider 7 up and down, and reduce the unbalanced force due to inertia. The vibration of the body caused by the balance force is suitable for precision presses where the slider slides at high speed.

The utility model is not limited to the above-mentioned embodiments. On the basis of the technical solutions disclosed in the utility model, those skilled in the art can make some technical features based on the disclosed technical content without creative work. Replacement and deformation, these replacements and deformations are all within the protection scope of the present utility model.

Claims (5)

1. a kind of high-speed blanking press structure, including fuselage and workbench, workbench is provided with lower template, and back level is provided with Rotatable bent axle, one end and the rotary drive mechanism of bent axle are connected, and are connected with connecting rod on bent axle, the lower end of connecting rod is hinged Have screw rod, screw rod lower end is provided with sliding block, it is characterised in that be fixedly connected with vertical middle guide pillar on the upside of the sliding block, in lead Post is provided with the mounting groove for running through middle guide pillar from top to bottom, and the screw rod is arranged in the mounting groove of middle guide pillar, in the fuselage Portion is provided with level board, and level board is provided with the middle guide pillar hole to match with middle guide pillar, and the middle guide pillar passes through middle guide pillar hole, described Four vertex of sliding block are vertically arranged with side guide pillar, and each side guide pillar is corresponded on the workbench and is respectively equipped with side guide pillar seat, Side guide pillar hole is offered on side guide pillar seat vertically, the side guide pillar is inserted in the side guide pillar hole of respective side guide pillar seat；The bent axle It is above axially symmetric to be provided with a pair of balanced connecting rods, balance weight is provided with above balanced connecting rod, balance weight lower horizontal is set Have support shaft, the upper end of two balanced connecting rod is hinged in support shaft, corresponded on the fuselage balance weight be provided with lead vertically To bar, pilot hole is set, the guide rod is inserted in pilot hole, and guide rod coordinates with being oriented to interporal lacuna on balance weight.

2. a kind of high-speed blanking press structure according to claim 1, it is characterised in that in being provided with the middle guide pillar hole Guide pillar copper sheathing, side guide pillar copper sheathing is provided with side guide pillar hole.

3. a kind of high-speed blanking press structure according to claim 1 or 2, it is characterised in that the side guide pillar upper end is set There is side guide pillar gland.

4. a kind of high-speed blanking press structure according to claim 1 or 2, it is characterised in that the drive mechanism includes electricity Machine, the output end of motor are provided with motor wheel, and one end of bent axle is provided with flywheel, through being driven V belt translation between motor wheel and flywheel Connection.

5. a kind of high-speed blanking press structure according to claim 1 or 2, it is characterised in that left and right is right on the balance weight Title is provided with a pair of pilot holes, and fuselage is provided with two guide rods, and each guide rod inserts in corresponding pilot hole respectively, on guide rod End is provided with stop nut.