CN209409428U

CN209409428U - Bottom drive press

Info

Publication number: CN209409428U
Application number: CN201821584421.3U
Authority: CN
Inventors: 吴秀毅
Original assignee: Longwen Zhejiang Precision Equipment Ltd By Share Ltd
Current assignee: Zhejiang Longwen precision equipment Co.,Ltd.
Priority date: 2018-09-28
Filing date: 2018-09-28
Publication date: 2019-09-20
Anticipated expiration: 2028-09-28

Abstract

The utility model discloses bottom drive press, solve the problems, such as press machine at work because of the damage of machine parts caused by overload.It is characterized by: the guide post is equipped with pressure overload protection device, the pressure overload protection device is located above sliding block, and the sliding block can move on guide post, and when the pressure overload of the upper mold, the pressure overload protection device pressure release, sliding block is moved up.Press machine is encountered the case where pressure overload at work, and the pressure overload protection device pressure release above sliding block, sliding block moves up, and makes the pressure reduction of upper mold Yu lower mold, the other parts on mold or press machine is protected not to be damaged.

Description

Bottom drive press

Technical field

The utility model relates to mechanical equipment technical fields, and in particular to drive press on earth.

Background technique

Press machine makes metal generation plastic deformation and fracture be processed into zero by applying powerful pressure to metal blank Part can be widely used for the techniques such as cutting, punching, bending, riveted and molding, have the characteristics that widely used, high production efficiency.

Press machine may adjust that incorrect, blank thickness is uneven or two blanks are stacked because of mold at work or Person's sundries, which is fallen into die cavity etc., causes stress machine overload, may cause connecting rod thread damage, bent screws, deflection of crankshaft or disconnected It splits or even frame deflection, eventually leads to the damage of press machine.

Utility model content

To solve the problems, such as press machine at work because of the damage of machine parts caused by overload, the utility model provides cunning The bottom drive press of pressure overload protection device is equipped with above block.

The technical solution adopted in the utility model is as follows:

Bottom drive press, including rack, the rack is interior to be equipped with crankshaft, and the crankshaft is connected with guide post, the guide post On be connected with sliding block, the sliding block is equipped with upper mold, and the rack is equipped with the lower mold cooperated with upper mold, on the guide post Equipped with pressure overload protection device, the pressure overload protection device is located above sliding block, and the sliding block can move on guide post, When the pressure overload of the upper mold, the pressure overload protection device pressure release, sliding block is moved up.

The pressure overload protection device includes the fixing seat for being fixed on the piston of slider top and being fixed on guide post, The fixing seat is equipped with groove, and the piston is located in groove, and it is logical that the fixing seat is equipped with the oil circuit being connected to bottom portion of groove Road, is equipped with No. two gaps between the bottom portion of groove and top land, No. two gaps are full of hydraulic oil.

No.1 gap is equipped between the fixing seat and slider top, the distance in the No.1 gap is adjustable.

The fixing seat is to be threadedly engaged with guide post.

No.1 sealing ring is equipped between the piston and the two side walls of groove.

The rack is equipped with guide pillar seat, and the guide post and guide pillar seat are clearance fit, and the guide pillar seat is equipped with and leads The director element of column cooperation.

The both ends of the guide pillar seat are equipped with No. two sealing rings, and No. two sealing rings are connect by bolt with guide pillar seat.

The beneficial effects of the utility model are:

Press machine is encountered the case where pressure overload at work, the pressure overload protection device pressure release above sliding block, sliding block It moves up, makes the pressure reduction of upper mold Yu lower mold, the other parts on mold or press machine is protected not to be damaged.

Detailed description of the invention

Fig. 1 is the schematic diagram of the utility model.

Fig. 2 is the schematic diagram of the utility model pressure overload protection device.

Rack 1, guide post 3, sliding block 4, upper mold 5, lower mold 6, pressure overload protection device 7, piston 71, is fixed crankshaft 2 Seat 72, No.1 gap 8, groove 9, asphalt channel 10, No. two gaps 11, No.1 sealing ring 12, guide pillar seat 13, spools hold 14, two Number sealing ring 15.

Specific embodiment

The utility model is described in further detail with embodiment with reference to the accompanying drawing:

In embodiment, as shown in Figure 1 and Figure 2, bottom drive press, including rack 1, the rack 1 is interior to be equipped with crankshaft 2, institute It states crankshaft 2 and is connected with guide post 3, sliding block 4 is connected on the guide post 3, the sliding block 4 is equipped with upper mold 5, sets in the rack 1 There is the lower mold 6 cooperated with upper mold 5, the guide post 3 is equipped with pressure overload protection device 7, the pressure overload protection dress It sets 7 and is located at 4 top of sliding block, the sliding block 4 can move on guide post 3, when the pressure overload of the upper mold 5, the pressure 7 pressure release of overload protection arrangement, sliding block 4 move up.Press machine is encountered the case where pressure overload at work, the pressure of 4 top of sliding block 7 pressure release of overload protection arrangement, sliding block 4 move up, and make the pressure reduction of upper mold 5 Yu lower mold 6, protect mold or press machine On other parts be not damaged.

In embodiment, as shown in Fig. 2, the pressure overload protection device 7 include be fixed on the piston 71 at the top of sliding block 4 with And it is fixed on the fixing seat 72 on guide post 3, the fixing seat 72 and sliding block are equipped with No.1 gap 8, the fixing seat between 4 top 72 are equipped with groove 9, and the piston 71 is located in groove 9, and the fixing seat 72 is equipped with the asphalt channel being connected to 9 bottom of groove 10,9 bottom of groove and piston are equipped with No. two gaps 11 between 71 top, and No. two gaps 11 are full of hydraulic oil.Oil circuit Channel 10 is externally connected to pressure dwelling loop, and pressure sensor is equipped in pressure dwelling loop, and hydraulic oil gives sliding block full of No. two gaps 11 A stable pressure is provided, when the upper mold pressure overload of sliding block 4, sliding block 4 rises with piston 71, and hydraulic oil is along oil circuit Channel 10 is discharged, and pressure sensor detects the variation of hydraulic fluid pressure, sends the signal to motor, makes motor stopping, when event It is booted up again after barrier discharge.

In embodiment, the distance in the No.1 gap 8 is adjustable, and the fixing seat 72 is to be threadedly engaged with guide post 3.Pass through rotation The fixing seat 72 transduceed on column 3 adjusts the distance between fixing seat 72 and sliding block 4, come movement upward when guaranteeing that sliding block 4 overloads Amount.

In embodiment, as shown in Fig. 2, being equipped with No.1 sealing ring 12 between the piston 71 and the two side walls of groove 9. The leakproofness for ensuring piston 71, does not allow hydraulic fluid leak.

In embodiment, as shown in Figure 1, the rack 1 is equipped with guide pillar seat 13, the guide post 3 is gap with guide pillar seat 13 Cooperation, the guide pillar seat 13 are equipped with the director element 14 cooperated with guide post 3.Director element 14 is sliding bearing or linear axis It holds, guarantees that guide post 3 smoothly moves along a straight line, cooperate upper mold and lower mold accurate.

In embodiment, as shown in Figure 1, the both ends of the guide pillar seat 13 are equipped with No. two sealing rings 15, No. two sealing rings 15 are connect by bolt with guide pillar seat 13.It prevents impurity from entering in guide pillar seat 13, influences the straightness of the movement of guide post 3.

Obviously, the above embodiments of the present invention is merely to illustrate that examples for clearly illustrating the present invention, and is not Limitations of the embodiments of the present invention.For those of ordinary skill in the art, on above explained basis On can also make other various forms of variations or variation.There is no need and unable to give poor example to all embodiments. And these connotation changes and variations that derived from for belonging to the utility model still fall within the utility model Protection scope.

Claims

1. bottom drive press, including rack (1), the rack (1) is interior to be equipped with crankshaft (2), and the crankshaft (2) is connected with guide post (3), be connected with sliding block (4) on the guide post (3), the sliding block (4) be equipped with upper mold (5), the rack (1) be equipped with it is upper The lower mold (6) of mold (5) cooperation, it is characterised in that: the guide post (3) is equipped with pressure overload protection device (7), the pressure Power overload protection arrangement (7) is located above sliding block (4), and the sliding block (4) can move on guide post (3), when the upper mold (5) Pressure overload when, pressure overload protection device (7) pressure release, sliding block (4) moves up.

2. bottom drive press as described in claim 1, it is characterised in that: the pressure overload protection device (7) includes solid The piston (71) being scheduled at the top of sliding block (4) and the fixing seat (72) being fixed on guide post (3), the fixing seat (72) are equipped with recessed Slot (9), the piston (71) are located in groove (9), and it is logical that the fixing seat (72) is equipped with the oil circuit being connected to groove (9) bottom No. two gaps (11) are equipped between at the top of road (10), groove (9) bottom and piston (71), No. two gaps (11) are full of Hydraulic oil.

3. bottom drive press as claimed in claim 2, it is characterised in that: the fixing seat (72) and sliding block (4) top Between be equipped with No.1 gap (8), the distance of the No.1 gap (8) is adjustable.

4. bottom drive press as claimed in claim 2, it is characterised in that: the fixing seat (72) is screw thread with guide post (3) Cooperation.

5. bottom drive press as claimed in claim 2, it is characterised in that: two sides of the piston (71) and groove (9) No.1 sealing ring (12) are equipped between wall.

6. bottom drive press as described in claim 1, it is characterised in that: the rack (1) is equipped with guide pillar seat (13), institute Stating guide post (3) and guide pillar seat (13) is clearance fit, and the guide pillar seat (13) is equipped with the director element cooperated with guide post (3) (14).

7. bottom drive press as claimed in claim 6, it is characterised in that: the both ends of the guide pillar seat (13) are close equipped with No. two Seal (15), No. two sealing rings (15) are connect by bolt with guide pillar seat (13).