CN209810963U

CN209810963U - Expansion die adjusting mechanism and expansion die

Info

Publication number: CN209810963U
Application number: CN201920306831.XU
Authority: CN
Inventors: 刘健; 徐爱芳; 冯继凯; 赵超; 刘斐
Original assignee: SHANDONG XIAOYA PRECISE MACHINERY Co Ltd
Current assignee: SHANDONG XIAOYA PRECISE MACHINERY Co Ltd
Priority date: 2019-03-11
Filing date: 2019-03-11
Publication date: 2019-12-20
Anticipated expiration: 2029-03-11

Abstract

The utility model belongs to the technical field of the car rim work piece technique of expanding and specifically relates to an expand mould adjustment mechanism and expand mould that expands is related to alleviate the technical problem that has the potential safety hazard among the prior art. The mechanism comprises a cone and an adjusting piece; the cone body is provided with a first end and a second end, and the diameter of the cone body is gradually reduced along the direction from the first end to the second end; the adjusting piece is connected to the first end in a transmission mode and used for driving the cone to move along the axis direction of the cone. In the expansion die adjusting mechanism, the adjusting piece is arranged at the first end of the cone, namely arranged on the side surface of the two expansion dies deviating from each other, and during adjustment, a worker does not need to stand in a gap between the two cones, so that potential safety hazards of equipment to people are eliminated.

Description

Expansion die adjusting mechanism and expansion die

Technical Field

The utility model belongs to the technical field of the car rim work piece technique of expanding and specifically relates to an expand mould adjustment mechanism and expand mould that expands is related to.

Background

The expansion is an important process in the production process of the automobile rim, and the roundness of a wheel hub workpiece is further improved by expanding and finishing the roundness of the wheel hub workpiece by using a die. Usually, the hub expansion is completed on an expander.

In the prior art, the expansion machine comprises two pyramids which are oppositely arranged, a sliding block is sleeved on each pyramid, an expansion piece is sleeved on each sliding block, and expansion of the expansion piece can change expansion of a hub sleeved on the expansion piece. The two pyramids can be closer or farther apart.

In the specific expansion operation process, a worker stands in a gap between the two pyramids, inserts the front ends of the pyramids with a wrench and wrenches the pyramids so that the pyramids perform the compound motion of transverse motion and rotary motion, and the diameter of the sliding block expands or contracts along with the motion of the pyramids, so that the expansion piece expands or contracts, and the expansion of the expansion piece can realize the expansion of the hub sleeved on the expansion piece.

The prior art mainly has the following defects: the pyramid is pyramid structure (the cross section is the polygon), and its periphery is the prism face, and the pyramid is transverse motion and rotary motion, and therefore the pyramid receives the influence of all directions return stroke lateral force (resistance in the opposite direction) great, consequently need open equipment when adjusting, can offset this all directions return stroke lateral force after equipment opens to reduce staff's work burden. However, when the apparatus is always in the start-up state, there is a safety risk for the staff to stand in the opening gap between the two pyramids.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an expand mould adjustment mechanism and expand mould to alleviate the technical problem who has the potential safety hazard among the prior art.

In order to solve the technical problem, the utility model provides a technical scheme lies in:

an expansion die adjusting mechanism comprises a cone and an adjusting piece;

the cone body is provided with a first end and a second end, and the diameter of the cone body is gradually reduced along the direction from the first end to the second end;

the adjusting piece is connected to the first end in a transmission mode and used for driving the cone to move along the axis direction of the cone.

Further, the adjusting piece is in threaded transmission with the cone, and the cone moves along the axis direction of the cone due to rotation of the adjusting piece.

Furthermore, a first limiting member is arranged on one side of the adjusting member, which is away from the cone, and the first limiting member is used for limiting the movement of the adjusting member in the direction pointing to the first end.

Furthermore, a second limiting member is disposed between the adjusting member and the cone, and the second limiting member is configured to limit the movement of the adjusting member in a direction pointing to the second end.

Furthermore, the adjusting piece comprises an installation part and a limiting part;

the mounting part is mounted at the first end;

spacing portion with the installation department deviates from one side of first end is connected, just spacing portion is located first locating part with between the second locating part.

Furthermore, the first end is protruding and form the bellying to the direction that is kept away from the second end, the bellying is equipped with and is used for installing the screw hole of installation department.

Furthermore, a plurality of adjusting holes are formed in the adjusting piece, and the adjusting holes are uniformly distributed around the center of the adjusting piece.

Furthermore, the expansion die adjusting mechanism further comprises a crowbar, and the crowbar is detachably mounted in the adjusting hole.

Further, the cross-section of the cone is circular.

An expansion die comprises an expansion die adjusting mechanism and a die body sleeved outside a cone;

the mould body comprises a plurality of mould petals, the mould petals are in a radial shape taking the cone as the center, and can expand or contract under the driving of the cone.

Technical scheme more than combining, the utility model discloses following beneficial effect has:

the expansion die adjusting mechanism comprises a cone and an adjusting piece; the cone body is provided with a first end and a second end, and the diameter of the cone body is gradually reduced along the direction from the first end to the second end; the adjusting piece is connected to the first end in a transmission mode and used for driving the cone to move in the axial direction.

In the expansion die adjusting mechanism, the adjusting piece is arranged at the first end of the cone, namely arranged on the side surface of the two expansion dies deviating from each other, and during adjustment, a worker does not need to stand in a gap between the two cones, so that potential safety hazards of equipment to people are eliminated.

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 embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are 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 is a schematic structural view of an expansion mold provided in an embodiment of the present invention;

fig. 2 is a front view of an expansion die provided in an embodiment of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

fig. 4 is a cross-sectional view of a cone in an expansion die provided in an embodiment of the present invention;

fig. 5 is a schematic structural view of an adjusting member in an expansion die provided by the embodiment of the present invention.

Icon: 100-expansion die adjusting mechanism; 110-cone; 111-a first end; 112-a second end; 113-a threaded hole; 114-standard well; 115-a boss; 120-an adjustment member; 121-a regulating hole; 122-a mounting portion; 123-a limiting part; 130-crowbar; 140-a first stop; 150-a second stop; 200-a mold body; 210-mold halves; 220-a guide rail; 230-a slider; 240-a fixed seat; 300-abrasion resistant sheet.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Next, embodiments 1 to 3 will be described based on the overall structure of the expansion die adjustment mechanism and the expansion die provided by the present invention.

In the prior art, the expansion machine comprises two pyramids which are oppositely arranged, a sliding block is sleeved on each pyramid, an expansion piece is sleeved on each sliding block, and expansion of the expansion piece can change expansion of a hub sleeved on the expansion piece. The two pyramids can be closer or farther apart. In the specific expansion operation process, a worker stands in a gap between the two pyramids, inserts the front ends of the pyramids with a wrench and wrenches the pyramids so that the pyramids perform the compound motion of transverse motion and rotary motion, and the diameter of the sliding block expands or contracts along with the motion of the pyramids, so that the expansion piece expands or contracts, and the expansion of the expansion piece can realize the expansion of the hub sleeved on the expansion piece.

The pyramid is pyramid structure (the cross section is the polygon), and its periphery is the prism face, and the pyramid is transverse motion and rotary motion, and therefore the pyramid receives the influence of all directions return stroke lateral force (resistance in the opposite direction) great, consequently need open equipment when adjusting, can offset this all directions return stroke lateral force after equipment opens to reduce staff's work burden. However, when the apparatus is always in the start-up state, there is a safety risk for the staff to stand in the opening gap between the two pyramids.

Example 1

In contrast, the present embodiment provides an expansion die adjustment mechanism 100.

Referring specifically to fig. 2 and 3, the expansion die adjustment mechanism 100 includes a cone 110 and an adjustment member 120; the cone 110 has a first end 111 and a second end 112, and the diameter of the cone 110 gradually decreases along the direction from the first end 111 to the second end 112; the adjusting member 120 is drivingly connected to the first end 111 for driving the cone 110 to move along its axis.

In the expansion die adjusting mechanism 100, the adjusting member 120 is mounted at the first end 111 of the cone 110, that is, mounted at the side surface of the two expansion dies departing from each other, and during adjustment, a worker does not need to stand in the gap between the two cones 110, thereby eliminating the potential safety hazard of equipment to people.

In the prior art, a pyramid is in a pyramid structure (the cross section is polygonal), the peripheral surface of the pyramid is a prismatic surface, and the pyramid does transverse motion and rotary motion, so that the pyramid is greatly influenced by return stroke lateral force (resistance in the opposite direction) in all directions, the adjusting force required by manually adjusting the pyramid is large, and the workload of workers is large.

In contrast, in the present embodiment, the adjusting member 120 is in threaded transmission with the cone 110, and the rotation of the adjusting member 120 causes the cone 110 to move along its axis. That is, during the screw-driving of the adjusting member 120 with the cone 110, the adjusting member 120 is not displaced in the axial direction of the cone 110. In the process of rotating the adjusting part 120, the cone 110 only moves in a translation manner, and does not rotate, so that the cone 110 is slightly influenced by the return lateral force in each direction, correspondingly, the adjusting force required by manually adjusting the cone 110 is also obviously reduced compared with the prior art, even if the device is in a shutdown state, a worker can drive the cone 110 to move in a translation manner along the axis direction of the worker, and the potential safety hazard of the device to people is greatly reduced. Wherein the cross-section of the cone 110 may be circular to further reduce the influence of the return-stroke lateral forces to which the cone 110 is subjected. But is not limited thereto, the cone 110 may be provided as a pyramid.

Specifically, a side of the adjusting member 120 facing away from the cone 110 is provided with a first limiting member 140, and the first limiting member 140 is used for limiting the movement of the adjusting member 120 in a direction pointing to the first end 111. When the adjusting member 120 is rotated in a forward direction (assuming that the upward rotation is the forward rotation in fig. 3), the adjusting member 120 abuts against the first limiting member 140, and since the first limiting member 140 limits the adjusting member 120 in a direction pointing to the first end 111, the adjusting member 120 only rotates, and the adjusting member 120 drives the cone 110 to move through the screw transmission, and at this time, the cone 110 translates in a direction pointing to the first end 111. The sliders 230 move on the side of the cone 110, and the diameter of the sliders 230 is contracted with the movement of the cone 110, thereby contracting the mold body 200. The first limiting member 140 may be a base of the expanding machine, or may be a limiting plate mounted on the base.

A second limiting member 150 is disposed between the adjusting member 120 and the cone 110, and the second limiting member 150 is used for limiting the movement of the adjusting member 120 in the direction pointing to the second end 112. When the adjusting member 120 is rotated in a reverse direction (it is assumed that the downward rotation is the reverse rotation in fig. 3), the adjusting member 120 abuts against the second limiting member 150, and since the second limiting member 150 limits the adjusting member 120 in a direction pointing to the second end 112, the adjusting member 120 only rotates, and the adjusting member 120 drives the cone 110 to move through the screw transmission, and at this time, the cone 110 translates in a direction pointing to the second end 112. The slide 230 moves on the side of the cone 110, and the diameter of the slide 230 expands with the movement of the cone 110, thereby expanding the mold body 200. The second limiting member 150 may be a base of the expander, or a limiting plate mounted on the base, or may be a first end 111 of the cone 110, specifically, when the adjusting member 120 rotates in a reverse direction (it is assumed that the adjusting member 120 rotates downward in fig. 3 in the reverse direction), the adjusting member 120 abuts against the first end 111, and since the cone 110 limits the adjusting member 120 in a direction pointing to the second end 112, the adjusting member 120 only rotates, the adjusting member 120 drives the cone 110 to move through screw transmission, and at this time, the cone 110 translates in the direction pointing to the second end 112.

Referring to fig. 5, the adjusting element 120 includes an installation portion 122 and a limiting portion 123; the mounting portion 122 is mounted to the first end 111, and the mounting portion 122 is configured as a cylindrical structure with an external thread. The limiting portion 123 is connected to a side of the mounting portion 122 away from the first end 111, and the limiting portion 123 is located between the first limiting member 140 and the second limiting member 150. The position-limiting portion 123 may be a cylindrical structure.

Further, referring to fig. 4, since the first end 111 of the cone 110 is mounted on the base, the adjusting member 120 is located at the side of the base. Therefore, the cone 110 and the adjusting member 120 have a certain distance therebetween, and for the convenience of installation, the first end 111 is provided to protrude in a direction away from the second end 112 and form a protruding portion 115, and the protruding portion 115 is provided with a threaded hole 113 for installing the installation portion 122. Wherein, the depth of the threaded hole 113 is not greater than the length of the convex part 115 in the axial direction of the cone 110, so as to increase the strength of the cone 110. In addition, the protruding portion 115 may have a cylindrical structure or a mesa structure. But not limited thereto, the threaded hole 113 may also be provided at the first end 111.

In addition, in order to facilitate the measurement of the moving distance of the cone 110, a marker is provided on the adjusting member 120. Specifically, a plurality of adjusting holes 121 are opened on the adjusting member 120, and the plurality of adjusting holes 121 are uniformly distributed around the center of the adjusting member 120. If the pitch of the adjusting element 120 is L, and N adjusting holes 121 are formed in the adjusting element 120, the adjusting element 120 rotates one hole, and the distance that the adjusting element 120 drives the cone 110 to translate is L/N. Therefore, the number of the adjusting holes 121 through which the adjusting member 120 rotates is recorded during the rotation process, so that the translation distance of the cone 110 can be estimated, and further the expansion amount of the die body 200 can be estimated.

Further, the expanding die adjusting mechanism 100 further includes a crowbar 130, and the crowbar 130 is detachably installed in the adjusting hole 121. The worker may use the crowbar 130 to drive the rotation of the adjustment member 120.

In addition, since the expansion die usually includes two opposite expansion die adjustment mechanisms 100, and the two expansion die adjustment mechanisms 100 have concentricity requirements to ensure molding quality, a standard hole 114 for detecting concentricity is formed at the second end 112 of the cone 110.

In summary, the expansion die adjustment mechanism 100 provided in this embodiment has the following advantages:

(1) during adjustment, workers do not need to stand in the gap between the two cones 110, and potential safety hazards of equipment to people are eliminated.

(2) The cone 110 only moves in a translation mode, the influence of the lateral force of the return stroke in all directions is small, correspondingly, the adjusting force required by manually adjusting the cone 110 is obviously reduced compared with the prior art, even if the equipment is in a shutdown state, workers can drive the cone 110 to translate along the axis direction of the worker, and the potential safety hazard of the equipment to people is greatly reduced.

(3) The amount of expansion of the die body 200 can be estimated more accurately.

Example 2

The embodiment provides an expansion die.

Referring specifically to fig. 1 and 3, the expansion die includes an expansion die adjusting mechanism 100 according to embodiment 1 and a die body 200 sleeved outside a cone 110; the die body 200 includes a plurality of die segments 210, and the plurality of die segments 210 are radially arranged around the cone 110 and can expand or contract by the cone 110.

In the expansion die, the adjusting member 120 is mounted at the first end 111 of the cone 110, that is, mounted at the side surface of the two expansion dies departing from each other, and during adjustment, a worker does not need to stand in the gap between the two cones 110, thereby eliminating the potential safety hazard of equipment to people.

Further, the mold body 200 further includes a plurality of guide rails 220 and sliders 230 disposed corresponding to the mold halves 210; the sliding block 230 is slidably mounted on the guide rail 220 and abuts against the side surface of the cone 110; the slide block 230 can drive the mold halves 210 to expand or contract along the guide rail 220 under the driving of the cone 110. Specifically, during the movement of the cone 110 along its axis, the slider 230 slides on the side surface of the cone 110, the diameter of the cross section of the cone 110 in contact with the slider 230 changes continuously, and the slider 230 expands or contracts with the movement of the cone 110.

The die body 200 further includes a fixing seat 240, and the guide rail 220 is mounted on the fixing seat 240; the fixing base 240 is installed on the base. The installation manner of the guide rail 220 may be: the guide rail 220 is provided with a countersunk hole, the fixing seat 240 is correspondingly provided with a threaded hole, the bolt passes through the countersunk hole and is installed on the threaded hole, and the top of the bolt is lower than the side surface of the guide rail 220 departing from the fixing seat 240.

In addition, the slider 230 is in sliding contact with the side of the cone 110, and therefore wear occurs. To reduce maintenance costs, wear pads 300 are provided between the cone 110 and the slider 230.

Example 3

The embodiment provides an expanding machine.

The expansion machine comprises an expansion die and a machine base as described in embodiment 2; the side of the expansion die facing the first end 111 is mounted to the frame.

It should be noted that, the opposite two sides of the machine base are symmetrically provided with expansion dies.

In the above expansion machine, the adjusting member 120 is installed at the first end 111 of the cone 110, that is, at the side where the two expansion molds depart from each other, and during adjustment, a worker does not need to stand in the gap between the two cones 110, thereby eliminating the potential safety hazard of the equipment to the human.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. An expansion die adjusting mechanism is characterized by comprising a cone and an adjusting piece;

2. The expansion die adjustment mechanism of claim 1, wherein the adjustment member is in threaded communication with the cone, and rotation of the adjustment member causes the cone to move in a direction along its axis.

3. The expansion die adjustment mechanism of claim 2, wherein a side of the adjustment member facing away from the cone is provided with a first stop member for limiting movement of the adjustment member in a direction pointing towards the first end.

4. The expansion die adjustment mechanism of claim 3, wherein a second stop member is disposed between the adjustment member and the cone for limiting movement of the adjustment member in a direction toward the second end.

5. The expansion die adjustment mechanism of claim 4, wherein the adjustment member comprises a mounting portion and a limiting portion;

the mounting part is mounted at the first end;

6. The expansion die adjustment mechanism of claim 5, wherein the first end protrudes away from the second end and forms a protrusion, and the protrusion is provided with a threaded hole for mounting the mounting portion.

7. The expansion die adjustment mechanism of claim 1, wherein the adjustment member has a plurality of adjustment holes formed therein, the plurality of adjustment holes being evenly distributed around a center of the adjustment member.

8. The expanding die adjustment mechanism of claim 7, further comprising a crowbar removably mounted within the adjustment hole.

9. The expansion die adjustment mechanism of claim 1, wherein the cone has a circular cross-section.

10. An expansion die, which is characterized by comprising an expansion die adjusting mechanism as claimed in any one of claims 1 to 9 and a die body sleeved outside the cone;