CN213728940U

CN213728940U - Hexagonal stamping die in high locking-type

Info

Publication number: CN213728940U
Application number: CN202022749460.8U
Authority: CN
Inventors: 逯成旭; 王文明
Original assignee: Harbin Hafei Industry Co Ltd
Current assignee: Harbin Hafei Industry Co Ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-07-20
Anticipated expiration: 2030-11-25

Abstract

The utility model provides a hexagonal stamping die in high locking-type, including die holder, die sleeve, resilient means, drift press from both sides the cover, the drift presss from both sides, the drift, the strengthening rib cover and position sleeve of unloading. The elastic device is sleeved on the die sleeve, and the bottom plane of the reinforcing rib discharging sleeve is provided with an inner hole matched with the outer diameter of the die sleeve and sleeved on the die sleeve, so that a cavity is formed. The locating sleeve is located the strengthening rib and unloads and sheathe in, and the protruding cylinder in locating sleeve lower part stretches into in the hole that the strengthening rib unloads cover upper portion plane and open rather than the precision fit, and the punch press punching press is upper surface at the locating sleeve, and then drives the strengthening rib and unload the cover and can slide along the axial direction of die sleeve, when sliding to the punching press formation minimum that sets up, hexagonal in product and the drift formed. The elastic device is limited in the cover plate and deforms along the vertical direction of the die sleeve to form a material returning effect, and the punch is quickly separated from a punched product. The die has the advantages that the punch is not eccentric, the workpiece is not damaged, the machining efficiency is high, and the precision is obviously improved.

Description

Hexagonal stamping die in high locking-type

Technical Field

The utility model relates to a hexagonal stamping die in high locking-type.

Technical Field

The special fastener for high-locking bolt and nut is specially used for connecting airplane clamping plate and airplane cabin body, and has self-locking property. The application of high-lock bolts is wider and wider, the product requirements are more and more, the quality, the cost and the safety of the traditional processing scheme are all required to be improved, the full utilization of resources is achieved, the quality is strict, and the cost is saved. In order to fully embody the value of the mold, the research and development of the mold are changed into a great importance. The stamping die in the prior art has the technical problems that the die precision is easy to deform, the die is difficult to return materials, and a punch is broken.

Disclosure of Invention

The invention provides a high-locking type internal hexagonal stamping die, which aims to solve the technical problems that a stamping die in the prior art is easy to deform due to die precision matching, the die is difficult to return materials, and a punch is broken.

The technical scheme provided by the utility model is as follows: a high-locking type internal hexagonal stamping die comprises a die holder, a die sleeve, an elastic device, a punch clamping sleeve, a punch clamp, a punch, a reinforcing rib discharging sleeve and a positioning sleeve, wherein a base of the die sleeve is fixedly connected with the die holder; the lower plane of the reinforcing rib discharging sleeve is contacted with the upper plane of the elastic device, the punch clamp sleeve is positioned in the die sleeve and is in threaded connection with the die sleeve, the punch clamp is positioned in the punch clamp sleeve and is in tight fit connection with the punch clamp, the punch is tightly clamped in the punch clamp, the positioning sleeve is fixedly connected with the upper part of the reinforcing rib discharging sleeve, the projecting cylinder at the lower part of the positioning sleeve extends into a hole formed in the upper plane of the reinforcing rib discharging sleeve and is in excessive fit with the hole, the hole is coaxial and communicated with the inner hole at the bottom of the reinforcing rib discharging sleeve, a punch presses the upper surface of the positioning sleeve, thereby driving the reinforcing rib discharging sleeve to slide along the axial direction of the die sleeve, the positioning sleeve is provided with a through hole which is precisely matched with the outer diameter of the workpiece, the workpiece is arranged in the through hole, the upper part of the through hole has the same shape as the head of the workpiece, the height of the positioning sleeve is consistent with the same length of the workpiece, and the workpiece inserted into the through hole is coaxial with the punch.

The utility model discloses still have following advantage:

1. the lower plane of the positioning sleeve and the upper plane of the reinforcing rib discharging sleeve are in contact with each other, and the plane shape and the size are the same.

2. The punch head clamp is divided into two parts by taking the axis as a symmetrical axis.

3. The inner part of the punch clamping sleeve is clamped with the punch to form inverted cone fit.

4. The elastic device comprises an adjusting plate, a cover plate and a polyurethane pad, wherein the adjusting plate is positioned above the cover plate, and the cover plate is positioned above the polyurethane pad.

5. Still include the reference column, the diameter of reference column bottom is greater than the diameter of reference column shaft, and inside perpendicular division of die holder has one section and the slide in the corresponding aperture of reference column bottom, and the bottom of reference column is located the slide in with die holder sliding connection to the bottom of reference column is spacing inside the die holder, and the reference column shaft passes die holder, polyurethane pad in proper order, the upper end and the apron threaded connection of reference column.

6. The positioning sleeve and the reinforcing rib discharging sleeve are provided with through exhaust holes and correspond to each other in position.

7. The positioning sleeve is coaxial with the die sleeve.

8. The positioning sleeve and the die sleeve are coaxial, and the workpiece and the punch are coaxial.

The utility model discloses an advantage and advantage effect: the device enables the punch not to be eccentric and further not to be broken easily, the elastic material returning device is adopted to return materials flexibly, workpieces are not damaged, the machining efficiency is high, and the precision is improved remarkably.

Drawings

Fig. 1 is a structural schematic diagram of a high-locking internal hexagonal stamping die.

Fig. 2 is a schematic view of a workpiece processed by the present press die.

Fig. 3 is a tolerance schematic diagram of the symmetry of the workpiece after the stamping die is processed.

Detailed Description

The invention will be further described with reference to the following drawings by way of example:

as shown in fig. 1, a high-locking internal hexagonal stamping die comprises a die holder 210, a die sleeve 209, an elastic device, a punch jacket 205, a punch clamp 204, a punch 203, a reinforcing rib discharging sleeve 202 and a positioning sleeve 201, wherein the die holder 210 is limited and positioned on a lower working table of a stamping device, the lower surface of the die sleeve 209 is fixedly assembled on the upper surface of the die holder 210, the elastic device is sleeved on the die sleeve, the lower plane of the elastic device is in contact with the upper plane of a base of the die sleeve, the reinforcing rib discharging sleeve is sleeved on the die sleeve, an inner hole at the bottom of the reinforcing rib discharging sleeve is in clearance fit with the upper part of the die sleeve and can be mutually connected in a sliding manner, and the inside of the reinforcing rib discharging sleeve and the upper end of the die sleeve form a die cavity; the lower plane of the reinforcing rib discharging sleeve is contacted with the upper plane of the elastic device, the punch clamping sleeve is positioned inside the die sleeve and is in threaded connection with the die sleeve, the punch clamp is positioned inside the punch clamping sleeve and is in tight fit connection with the punch clamp, the punch is tightly clamped in the punch clamp, the positioning sleeve is fixedly connected with the upper part of the reinforcing rib discharging sleeve, a protruding cylinder at the lower part of the positioning sleeve extends into a hole formed in the plane of the upper part of the reinforcing rib discharging sleeve and is in excessive fit with the hole, the hole and an inner hole at the bottom of the reinforcing rib discharging sleeve are coaxial and mutually communicated, a punch presses the upper surface of the positioning sleeve and further drives the reinforcing rib discharging sleeve to slide along the axial direction of the die sleeve, a through hole precisely matched with the outer diameter of a workpiece is formed in the positioning sleeve, the workpiece is arranged in the through hole, the upper part of the through hole is identical to the shape of the head of the workpiece, and the punch are inserted in the through hole. The lower plane of the positioning sleeve 201 and the upper plane of the reinforcing rib discharging sleeve 202 are in the same plane shape and size in mutual contact, and force is transmitted uniformly when the reinforcing rib discharging sleeve is pressed by upper equipment.

The resilient means comprises an adjustment plate 206, a cover plate 207, and a polyurethane pad 208, the adjustment plate being located above the cover plate, the cover plate being located above the polyurethane pad. The positioning pin 212 and the positioning column 211 of the socket head cap screw jointly guarantee the stability of the die.

This embodiment still includes the reference column, and the diameter of reference column bottom is greater than the diameter of reference column shaft, and inside perpendicular division of die holder has one section slide with the corresponding aperture in reference column bottom, and the bottom of reference column is located the slide in with die holder sliding connection to the bottom of reference column is spacing inside the die holder, and the reference column shaft passes die holder, polyurethane pad in proper order, the upper end and the apron threaded connection of reference column.

The punch holder 205 is fitted with the punch holder 204 in an inverted taper to prevent the punch holder 204 from being pulled out due to material return. The punch clamp 204 is divided into two parts by taking the axis as a symmetrical axis, the punch 203 is wrapped in the middle, and after the punch jacket 205 is tightly connected with the die sleeve 209 through threads, the punch clamp is tightened, so that the punch is tightly clamped by the punch clamp.

The locating sleeve 201 is positioned on the reinforcing rib discharging sleeve 202, a column body protruding from the lower part of the locating sleeve extends into an inner hole formed in the plane of the upper part of the reinforcing rib discharging sleeve to be precisely matched with the reinforcing rib discharging sleeve, and 4 exhaust holes uniformly distributed in the locating sleeve 201 and the reinforcing rib discharging sleeve 202 correspond to each other in position respectively and are used for exhausting a closed cavity during machining. The punch presses the upper surface of the positioning sleeve, the reinforcing rib discharging sleeve can slide along the axial direction of the die sleeve under the action of the punching force, when the reinforcing rib discharging sleeve slides to the lowest point formed by the set punch, the workpiece is contacted with the punch, and the workpiece forms an inner hexagon. The elastic device comprises an adjusting plate, a cover plate and a polyurethane pad, wherein the adjusting plate is positioned above the cover plate, and the cover plate is positioned above the polyurethane pad. The polyurethane pad 208 is deformed along the axial direction of the die sleeve 209 to form a material return, so that the punch can be quickly separated from a punched product, and the demolding is facilitated.

The positioning sleeve is provided with a through hole which is precisely matched with the outer diameter of the workpiece, the workpiece is arranged in the through hole, the upper part of the through hole is the same as the head of the workpiece in shape, the height of the positioning sleeve is the same as the length of the workpiece, and the workpiece and the punch are coaxially inserted into the through hole. When a workpiece is placed, the upper surface of the head of the workpiece is flush with the upper surface of the positioning sleeve 201, the hexagonal punching surface of the workpiece is flush with the lower surface of the positioning sleeve 201, and the square deviation and the expansion of the thread of the workpiece can be effectively prevented, as shown in fig. 2-3, the symmetry S of the inner hexagon of the machined workpiece and the thread is improved to be within 0.03-0.04, which is obviously improved compared with 0.3 in the prior art.

The punch press is punched on the upper surface of the positioning sleeve 201, the punch press is transmitted to the reinforcing rib discharging sleeve 202, the reinforcing rib discharging sleeve 202 is driven to move in the same direction under the downward force along the guide shaft of the die sleeve, and the punch 203 is in contact with a workpiece to form the inner hexagon. The positioning sleeve, the reinforcing rib discharging sleeve, the die sleeve, the punching die and the punching die sleeve of the die are assembled in a precision fit mode to form an inner guide sleeve, and the coaxiality of the inner hexagon can be guaranteed.

In the above embodiment, when the positioning sleeve 201 and the reinforcing bar discharging sleeve 202 are lowered to the length of the internal hexagonal dimension, the lifting motion is started. The locating sleeve 201 can be replaced and adapted to workpieces with different lengths and specifications, the adjusting plate 206 is mainly used for facilitating micro adjustment of the workpieces with different lengths and specifications during machining, and the diameters of the adjusting plate, the cover plate and the polyurethane outer ring are the same, so that the phenomenon of mold clamping caused by uneven stress is avoided.

Claims

1. The utility model provides a hexagonal stamping die in high locking-type, includes the die holder, the die sleeve, resilient means, the drift presss from both sides the cover, the drift presss from both sides, the drift, the strengthening rib cover and the position sleeve of unloading, the base and the die holder fixed connection of die sleeve, its characterized in that: the elastic device is sleeved on the die sleeve, the lower plane of the elastic device is contacted with the upper plane of the base of the die sleeve, the reinforcing rib discharging sleeve is sleeved on the die sleeve, an inner hole at the bottom of the reinforcing rib discharging sleeve is in clearance fit with the upper part of the die sleeve and can be mutually connected in a sliding manner, and a cavity is formed between the interior of the reinforcing rib discharging sleeve and the upper end of the die sleeve; the lower plane of the reinforcing rib discharging sleeve is contacted with the upper plane of the elastic device, the punch clamping sleeve is positioned inside the die sleeve and is in threaded connection with the die sleeve, the punch clamp is positioned inside the punch clamping sleeve and is in tight fit connection with the punch clamp, the punch is tightly clamped in the punch clamp, the positioning sleeve is fixedly connected with the upper part of the reinforcing rib discharging sleeve, a cylinder protruding from the lower part of the positioning sleeve extends into a hole formed in the plane of the upper part of the reinforcing rib discharging sleeve and is in excessive fit with the hole, the hole and an inner hole at the bottom of the reinforcing rib discharging sleeve are coaxial and mutually communicated, a punch presses the upper surface of the positioning sleeve and further drives the reinforcing rib discharging sleeve to slide along the axial direction of the die sleeve, a through hole matched with the outer diameter of a workpiece is formed in the positioning sleeve, the workpiece is arranged in the through hole, the upper part of the through hole is identical to the shape of the head of the workpiece, the height of the positioning sleeve is identical to the length of the workpiece, and the punch inserted in the through hole are coaxial.

2. The high-locking internal hexagonal stamping die according to claim 1, wherein: the lower plane of the positioning sleeve and the upper plane of the reinforcing rib discharging sleeve are in contact with each other, and the plane shape and the size are the same.

3. The high-locking internal hexagonal stamping die according to claim 1, wherein: the punch head clamp is divided into two parts by taking the axis as a symmetrical axis.

4. A high-locking internal hexagonal stamping die according to any one of claims 1-3, wherein: the inner part of the punch clamping sleeve is clamped with the punch to form inverted cone fit.

5. The high-locking internal hexagonal stamping die according to claim 4, wherein: the elastic device comprises an adjusting plate, a cover plate and a polyurethane pad, wherein the adjusting plate is positioned above the cover plate, and the cover plate is positioned above the polyurethane pad.

6. The high-locking internal hexagonal stamping die according to claim 4, wherein: still include the reference column, the diameter of reference column bottom is greater than the diameter of reference column shaft, and inside perpendicular division of die holder has one section and the slide in the corresponding aperture of reference column bottom, and the bottom of reference column is located the slide in with die holder sliding connection to the bottom of reference column is spacing inside the die holder, and the reference column shaft passes die holder, polyurethane pad in proper order, the upper end and the apron threaded connection of reference column.

7. The high-locking internal hexagonal stamping die according to claim 1, wherein: the positioning sleeve and the reinforcing rib discharging sleeve are provided with through exhaust holes and correspond to each other in position.

8. The high-locking internal hexagonal stamping die according to claim 1, wherein: the positioning sleeve is coaxial with the die sleeve.

9. The high-locking internal hexagonal stamping die according to claim 1, wherein: the positioning sleeve and the die sleeve are coaxial, and the workpiece and the punch are coaxial.