CN212860571U - Press machine - Google Patents

Abstract

The utility model discloses a press, which comprises a cantilever, wherein the cantilever is provided with a pressing mechanism, the pressing mechanism comprises a handle, a fixed wheel and a rotating wheel, the fixed wheel is fixed on the cantilever, and the rotating wheel is connected with a shaft of the handle through a pin shaft and moves synchronously; have the locating pin on the tight pulley have on the swiveling wheel with locating pin complex spacing groove, the one end of locating pin stretches into to the spacing groove, through above technical scheme, can realize the accurate control to the press in the process of pushing down.

Description

Press machine

Technical Field

The utility model relates to a press technical field especially relates to a press with stroke control function.

Background

With the progress and development of industrial technology, workpieces are pressed down more and more by a common press. With the increasing market demand, the common press in the prior art has the disadvantages of poor universality, simple structure, inflexibility, and gradually failing to meet the use requirements of customers,

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a press controls through the stroke to the press in the process of pushing down, can promote the commonality and increase the flexibility.

The technical scheme of the utility model as follows:

a press comprises a cantilever, wherein a pressing mechanism is arranged on the cantilever, the pressing mechanism comprises a handle, a fixed wheel and a rotating wheel, the fixed wheel is fixed on the cantilever, and the rotating wheel is connected with a shaft of the handle through a pin shaft and moves synchronously; the fixed wheel is provided with a positioning pin, the rotating wheel is provided with a limiting groove matched with the positioning pin, and one end of the positioning pin extends into the limiting groove.

Furthermore, a channel is formed in the fixed wheel, the positioning pin penetrates through the channel, a groove is formed in the channel, one end of the positioning column is positioned in the groove, the first spring is arranged in the positioning column, and one end of the first spring is in contact with the outer diameter of the positioning pin.

Furthermore, a second spring is sleeved on the locating pin.

Preferably, the end of the positioning pin exceeds the surface of the fixed wheel, the second spring is sleeved on the exceeding part, one end of the second spring is in contact with the outer surface of the positioning column, and the other end of the second spring is in contact with the end of the positioning pin.

Furthermore, the fixed wheel is provided with a fixed hole.

Furthermore, the limiting groove is of a step-shaped structure, and at least part of steps are provided with arc-shaped transition parts.

Furthermore, the multifunctional bicycle further comprises a reset wheel, and the reset wheel, the rotating wheel and the fixed wheel are coaxially arranged.

Further, the limiting groove part of the rotating wheel is provided with a through hole, the reset wheel is connected with one end of a reset pin, and the other end of the reset pin penetrates through the through hole and is close to the end part of the positioning pin.

Preferably, a third spring is connected between an end surface of the return pulley and an end surface of the rotation wheel.

Has the advantages that: the utility model discloses an utilize the swiveling wheel with the handle synchronous motion, and can rotate for the fixed pulley, be provided with the locating pin on the fixed pulley, set up spacing groove on the swiveling wheel, through the swiveling wheel in the rotation process, spacing groove with the cooperation of locating pin realizes the restriction of the handle in the rotation process, thereby reaches the accurate control to the press stroke; and the scheme is low in cost and reliable in performance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 shows a schematic view of the overall structure of the press disclosed in the present embodiment;

FIG. 2 shows a schematic structural view of a fixed wheel;

FIG. 3 is a schematic view showing the structure of the rotating wheel engaged with the pin;

FIG. 4 shows a schematic view of the construction of the rotating wheel;

fig. 5 shows a schematic structural view of the reset pin;

fig. 6 shows a schematic view of the structure of the reset wheel and the rotating wheel;

fig. 7 shows another schematic diagram of the cooperation structure of the reset wheel and the rotating wheel.

The corresponding part names indicated by the numbers and letters in the drawings:

1. a base; 2. a cantilever; 3. a handle; 4. a fixed wheel; 5. positioning pins; 6. a first spring; 7. a channel; 8. a positioning column; 9. a second spring; 10. a rotating wheel; 11. a limiting groove; 12. a reset wheel; 13. a reset pin; 14. and a third spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Examples

Fig. 1 shows a schematic structural diagram of the overall structure of the press disclosed in the present embodiment, which includes a base, a support arm is provided on the base 1, the support arm is connected with a cantilever 2, and a pressing structure is provided on the cantilever 2, wherein the pressing mechanism includes a handle 3, and a pressing rod for realizing a lifting motion by the rotation of the handle 3, and the driving of the pressing rod to perform the lifting motion by the rotation of the handle 3 is a conventional manner adopted by a common press in the art, and will not be further described in detail herein.

In fig. 1, a fixed wheel 4 is further disclosed, the fixed wheel 4 is connected with the cantilever 2 in a manner of screw connection, welding or the like, so that the fixed wheel 4 and the cantilever 2 can be fixedly connected to ensure that the fixed wheel 4 and the cantilever 2 are stably kept at a predetermined position.

The fixed wheel 4 is connected with a positioning pin 5, a first spring 6 is arranged on the positioning pin 5, and the first spring 6 can provide a buffering effect for the positioning pin 5 to move horizontally.

The handle is characterized by further comprising a rotating mechanism, the rotating mechanism comprises a rotating wheel 10, a limiting groove 11 is formed in the rotating wheel 10, the rotating wheel 10 is connected with the rotating portion of the handle 3 through a pin shaft, and the pin shaft penetrates through the fixing wheel 4.

The working principle of the press provided by the embodiment is as follows: through rotating handle 3, handle 3 drives the depression bar pushes down, handle 3 can drive at the pivoted in-process rotary mechanism synchronous rotation, rotary mechanism's spacing groove 11 can play limiting displacement to locating pin 5 makes handle 3 receive the resistance at the pivoted in-process, thereby will the stroke restriction of depression bar is in specific position.

Fig. 2 shows a schematic structural diagram of the fixed pulley 4, the fixed pulley 4 is connected to the cantilever 2, an axial hole penetrating through the fixed pulley 4 in the thickness direction is formed at the axial center position of the fixed pulley 4, a channel 7 is formed in the fixed pulley 4 from the radial direction to the axial direction, and the channel 7 penetrates through the fixed pulley 4 in the thickness direction.

The positioning pin 5 penetrates through one end of the channel 7 and extends out of the other end of the channel 7, and the positioning pin 5 is parallel to the direction of the shaft hole.

Still include reference column 8 set up a recess on the external diameter of tight pulley 4, the one end of reference column 8 hold in to the recess is fixed, the inside of reference column 8 has holds the room the reference column 8 is close to one side of locating pin 5 has the opening.

In fig. 2, in order to facilitate the observation of the first spring 6, the first spring 6 is extended at one end away from the positioning pin 5, and as can be seen from fig. 1, it is actually provided with a containing chamber for the first spring 6 through the positioning column 8, and one end of the first spring 6 is limited by the positioning column 8.

The outer diameter of the positioning pin 5 is sleeved with a second spring 9, the end of the positioning pin 5 exceeds the surface of the fixed wheel 4, the exceeding part is sleeved with the second spring 9, one end of the second spring 9 is in contact with the outer surface of the positioning column 8, and the other end of the second spring is in contact with the end of the positioning pin 5 (usually, the end of the positioning pin 5 is provided with an end cap, and the second spring 9 is limited by the distance between the end cap and the outer surface of the positioning column 8).

In fig. 2, a fixing hole is further formed in the outer portion of the shaft hole of the fixed wheel 4, the fixing hole is parallel to the shaft hole and evenly surrounds the periphery of the shaft hole, and the fixed wheel 4 can be fixed on the cantilever 2 through the matching of the fixing hole and a fastener (such as a screw).

In practical use, as the positioning pin 5 may move horizontally, the positioning pin 5 is pushed by the action of external force, and the positioning pin 5 can quickly rebound to the initial position when being subjected to the action of the second spring 9; in addition, in the process that the positioning pin 5 moves up and down, the first spring 6 can apply thrust from the bottom, so that when the positioning pin 5 moves in the channel 7, the positioning pin is always subjected to stable thrust provided by the first spring 6, and the movement stability and reliability of the positioning pin are ensured.

Fig. 3 shows swiveling wheel 10 and round pin axle complex structure schematic diagram, and it discloses swiveling wheel 10 the middle part of swiveling wheel 10 has the shaft hole, wears to be equipped with the round pin axle on the shaft hole, the round pin axle still passes shaft hole on the fixed pulley 4, and finally with the axle of handle 3 is connected, perhaps the axle center position of handle 3 the shaft hole of fixed pulley 4 the shaft hole of swiveling wheel 10 all quilt the round pin axle is connected, and it can know to combine fig. 1, swiveling wheel 10 passes through the connection of round pin axle makes fixed pulley 4 restricted swiveling wheel 10 with between the cantilever 2, what need explain here, the round pin axle only passes the shaft hole of fixed pulley 4, and not with the shaft hole internal diameter of fixed pulley 4 contacts.

When the handle 3 rotates, the rotating wheel 10 can rotate integrally with the handle 3, and the fixed wheel 4 is fixedly connected with the cantilever 2, so that the position is kept unchanged, that is, the rotating wheel 10 can rotate relative to the fixed wheel 4.

Further, fig. 4 shows a schematic structural diagram of the rotating wheel 10, a limiting groove 11 is arranged on one side of the rotating wheel 10 close to the fixed wheel 4, as can be seen from fig. 4, the limiting groove 11 has different heights and is in a step-shaped structure, and at least a part of steps are provided with arc-shaped transition parts, as shown in fig. 1 and 3, the end part of the positioning pin 5 extends into the limiting groove 11, and when the rotating wheel 10 rotates, the positioning pin 5 is influenced by the limiting groove 11, and the positioning pin 5 moves left and right, and at this time, the end part can rebound rapidly and has sufficient contact with the limiting groove 11 when the second spring 9 can enable the rotating wheel to respond to the limiting grooves 11 with different heights.

In addition, in the process of the movement of the rotating wheel 10, a vertical force is applied to the positioning pin 5, at this time, the first spring 6 can provide a rebound force, so that the positioning pin 5 is always kept in the area limited by the channel 7, when the rotating wheel 10 rotates to a certain position, the positioning pin 5 cannot be separated from the limiting groove 11, or the rotation of the rotating wheel 10 cannot overcome the rebound force applied by the first spring 6, at this time, the rotating wheel 10 is stopped to move, the handle 3 cannot continue to rotate, and the handle indicates that the press moves to the limit position.

Through the technical scheme, the rotating wheel 10 can limit the stroke of the press through the matching of the limiting groove 11 and the positioning pin 5 in the rotating process.

Fig. 5 shows a schematic structural diagram of a reset pin 13, fig. 6 shows a schematic structural diagram of a matching between a reset wheel 12 and a rotating wheel 10, the middle part of the reset wheel 12 also has a shaft hole, and the pin shaft penetrates the rotating wheel 10 and then penetrates the reset wheel 12, so that the reset wheel 12, the rotating wheel 10 and the fixed wheel 4 are actually in a coaxial position.

The through-hole has been seted up to the spacing groove 11 part of swiveling wheel 10, reset wheel 12 is connected with reset pin 13, reset pin 13's one end is passed the through-hole when the dead phenomenon of card appears in locating pin 5, through promoting reset wheel 12 makes reset wheel 12 is close to swiveling wheel 10, reset pin 13 can to the direction motion of locating pin 5, and pass reset wheel 12, with the tip contact of locating pin 5, promote locating pin 5 forces to trigger second spring 9 makes it kick-back fast to guarantee that the press can in time handle the dead phenomenon of card in the journey, reach the effect that resets fast.

Fig. 7 shows another schematic diagram of a matching structure of the reset wheel 12 and the rotating wheel 10, on the basis of fig. 6, in order to enable the reset wheel 12 to quickly rebound to the initial position after being pushed, a third spring 14 is connected between an end surface of the reset wheel 12 and an end surface of the rotating wheel 10, so that in the process of pushing for many times, the third spring 14 can enable the reset wheel 12 to rebound to the initial position after pushing for each time, by means of the resilience of the third spring 14, and the third spring 14 can provide a buffering force, thereby reducing the labor intensity of an operator in the pressing process.

Through the technical scheme, the utility model discloses make on the basis of ordinary press, can realize the accurate control to the stroke.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.

Claims (9)

1. A press comprises a cantilever, wherein a pressing mechanism is arranged on the cantilever, and the pressing mechanism comprises a handle, and is characterized by further comprising a fixed wheel and a rotating wheel, wherein the fixed wheel is fixed on the cantilever, and the rotating wheel is connected with a shaft of the handle through a pin shaft and moves synchronously; the fixed wheel is provided with a positioning pin, the rotating wheel is provided with a limiting groove matched with the positioning pin, and one end of the positioning pin extends into the limiting groove.

2. The press of claim 1, wherein a channel is defined in the fixed wheel, the locating pin passes through the channel, a groove is defined in the channel, one end of the locating post is positioned in the groove, the first spring is disposed in the locating post, and one end of the first spring contacts an outer diameter of the locating pin.

3. A press as claimed in claim 2, wherein a second spring is provided on the locating pin.

4. The press as claimed in claim 3, wherein the end of said positioning pin is extended beyond the surface of said fixed wheel, and said second spring is sleeved on the extended portion, and one end of said second spring is in contact with the outer surface of said positioning post, and the other end is in contact with the end of said positioning pin.

5. The press of claim 1, wherein the fixed wheels have fixed holes.

6. The press of claim 1, wherein the restraint slot is stepped and at least some of the steps have arcuate transitions therebetween.

7. The press according to any one of claims 1 to 6, further comprising a return wheel, said rotating wheel, said fixed wheel being coaxially arranged.

8. The press according to claim 7, wherein a through hole is formed in the position-limiting groove portion of the rotating wheel, one end of a reset pin is connected to the reset wheel, and the other end of the reset pin passes through the through hole and is close to the end of the positioning pin.

9. A press as claimed in claim 8, wherein a third spring is connected between the end face of the return wheel and the end face of the turning wheel.

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