Novel anchor rod disc stamping upper die

Abstract

The utility model discloses a novel anchor rod disc stamping upper die which comprises an upper die body, and a detachable pressing opening is formed in the bottom of the upper die body. A strip-shaped groove is formed in the bottom of the upper die female body, a push rod is rotationally connected into the strip-shaped groove, and a limiting structure used for limiting the anticlockwise rotation limit position of the push rod is arranged on the right side of the bottom of the strip-shaped groove. A sawtooth structure used for pushing the anchor rod disc to move rightwards is arranged at the bottom of the push rod. The stamping upper die solves the problems that the service life is short due to the fact that an existing stamping upper die is integrated and a pressing opening is prone to abrasion, and manual assistance is needed due to the fact that the upper die generates micro-magnetism after high-speed stamping and frequent contact, and the demolding process is affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to stamping technical field, concretely relates to a stamping upper die with replaceable pressure port. BACKGROUND

[0002] Anchor rod disc is an important component of anchor rod, and its manufacturing process has a decisive influence on the reliability of the whole support system. In the industrialized production of anchor rod disc, stamping forming technology is widely used due to its high production efficiency and high material utilization rate. The service life of the stamping die, as the key equipment for stamping forming, is related to the production efficiency and production cost.

[0003] The utility model discloses a supporting tray continuous production device discloses a kind of supporting tray continuous production device, including base, rear support, power cabinet, the rear support is fixed in the base rear, the rear support front end is equipped with power cabinet, the power cabinet lower side is equipped with pull rod, the pull rod lower side is equipped with support top plate, the support top plate lower side four corners are equipped with guide rod, the support top plate middle lower side is equipped with center block, the center block lower side is equipped with punch, the punch outer side is equipped with spring, the spring upper end is connected in center block lower side, the spring lower side is connected with upper die, the upper die includes flat plate, shell structure, center hole, the flat plate four corners are equipped with guide rod hole, the upper die lower end is equipped with lower die, the lower die and the upper die structure are same, the lower die is fixed on base. The patent punches and is pressed into shape once, is suitable for continuous production, and production efficiency is high, but there is also insufficient: stamping upper die is integral type, its cutting assembly wear will lead to the whole stamping upper die scrap, influence service life, and its feeding material taking material all need manual auxiliary, and there is security risk. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of new anchor rod disc stamping upper die, its purpose is: solve the problem that existing stamping upper die is integral, pressure port is easy to wear and lead to short service life, and the upper die generates micro-magnetic after high-speed stamping and frequent contact, and affect demolding process, need manual auxiliary.

[0005] The utility model technical scheme is as follows:

[0006] A kind of new anchor rod disc stamping upper die, including upper die matrix, the upper die matrix bottom is equipped with detachable pressure port;The upper die matrix bottom is equipped with strip-shaped recess, strip-shaped recess is rotatably connected with push rod, the right side of the bottom of strip-shaped recess is equipped with the limit structure for limiting the limit position of push rod counterclockwise rotation;The push rod bottom is equipped with sawtooth structure for pushing anchor rod disc to move right.

[0007] As a further improvement, the side corresponding to the lower die cutting knife of the upper die matrix is provided with a dovetail groove, the top surface of the dovetail groove is wide and the bottom surface is narrow, and the inner side surface is a slope; the pressing opening is fixed in the dovetail groove through a screw plug, the cross section of the pressing opening corresponds to the cross section of the dovetail groove, and the two are locked through the contacting slopes.

[0008] As a further improvement, the cross section of the dovetail groove is a straight-angle trapezoid which is wide at the top and narrow at the bottom, the top base of the straight-angle trapezoid is 12 mm, the bottom base is 15 mm, and the height is 10 mm.

[0009] As a further improvement, the bottom of the push rod is provided with a sawtooth structure for pushing the anchor rod disc to move to the right, and the outer end surface of the sawtooth structure is a circular arc surface.

[0010] As a further improvement, the bottom surface of the upper die matrix is provided with a strip-shaped groove on each of the front and rear sides, the push rod is rotationally connected in the strip-shaped groove through a fixed pin, and the outer diameter of the fixed pin is 8.0 mm-8.02 mm.

[0011] As a further improvement, a through hole, i.e. a first pin hole, is arranged between the outer wall of the strip-shaped groove and the outer wall of the side corresponding to the upper die matrix, and a counterbore, i.e. a second pin hole, is arranged on the inner wall of the strip-shaped groove for mounting the fixed pin, the fixed pin is in interference fit with the first pin hole and the second pin hole, and a third pin hole is arranged on the push rod, and the third pin hole on the push rod is in clearance fit with the fixed pin.

[0012] As a further improvement, the inner diameter of the first pin hole and the second pin hole is 7.95 mm-7.98 mm, and the inner diameter of the third pin hole is 8.05 mm-8.1 mm.

[0013] As a further improvement, the limiting structure is a wedge-shaped structure which is arranged to extend away from the side of the strip-shaped groove away from the fixed pin, and the top of the wedge-shaped structure is a slope which is inclined from the side of the fixed pin to the side away from the fixed pin, and the slope is in abutment with the bottom surface of the push rod for cooperating with the fixed pin to limit the limit position of the rotation of the push rod.

[0014] As a further improvement, the slope ratio of the wedge-shaped structure is 1:2.

[0015] Compared with the prior art, the utility model has the following positive effects:

[0016] (1) The utility model discloses a detachable pressing opening is arranged at the bottom of the stamping upper die matrix, and when the pressing opening is worn, only the pressing opening needs to be replaced, so that the service life of the stamping upper die is greatly prolonged, and the service life of the stamping upper die is improved from 10000 times to 50000 times.

[0017] (2) The utility model discloses a push rod is arranged at the bottom of the upper die matrix and can help the anchor rod disc to overcome the micro-magnetic and the upper die to separate, and manual assistance is not needed, and the manual intervention time is reduced by 60%, the production efficiency is greatly improved, and the incidence of safety accidents is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure schematic diagram of the stamping upper die in the utility model embodiment;

[0019] Figure 2 It is the schematic diagram of the push rod natural droop in the utility model embodiment;

[0020] Figure 3 It is the schematic diagram of the push rod into the upper die matrix in the utility model embodiment;

[0021] Figure 4 It is Figure 1 The structure schematic diagram of the upper die matrix;

[0022] Figure 5 It is Figure 4 The cross section schematic diagram of the upper die matrix;

[0023] Figure 6 It is the structure schematic diagram of the push rod in the utility model embodiment.

[0024] In the drawing, 1, upper die matrix;1-1, dovetail groove;1-2, strip-shaped recess (1-2);1-3, first pin hole;1-4, second pin hole;1-5, limiting structure;2, fixed pin;3, push rod;3-1, sawtooth structure;3-1-1, inclined groove;3-1-2, circular arc surface;3-2, contact line;3-3, third pin hole;4, pressing mouth. DETAILED DESCRIPTION

[0025] The technical scheme and technical effect of the utility model will be described in detail below in combination with the drawings. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment.

[0026] As Figures 1-3 A novel anchor rod disc stamping upper die, including upper die matrix 1, the side of upper die matrix 1 corresponding with lower die cutting knife is equipped with dovetail groove 1-1, and the detachable connection of dovetail groove 1-1 is provided with pressing mouth 4. The top surface of dovetail groove 1-1 is wide, and the bottom surface is narrow, and the inner side is inclined. The top surface of dovetail groove 1-1 is provided with screw plug hole, and pressing mouth 4 is fixed in dovetail groove 1-1 by screw plug. The cross section of pressing mouth 4 corresponds with the cross section of dovetail groove 1-1, and the two are locked by the inclined surface of contact. When the pressing mouth 4 is worn, only the pressing mouth 4 needs to be replaced, and the whole upper die does not need to be replaced. Specifically, the thread specification of the screw plug hole on the top surface of dovetail groove 1-1 is M6x1, the depth is 10mm, and the thread specification of the screw plug is M6x1, and the length is 20mm.

[0027] As a preferred example of the present application, the cross section of the dovetail groove 1-1 is a right-angled trapezoid with the upper base of 12 mm, the lower base of 15 mm and the height of 10 mm.

[0028] As Figure 2 , the upper die matrix 1 is provided with a bowl-shaped groove at the bottom, and a strip-shaped groove 1-2 is arranged at the front and rear sides of the bowl-shaped groove. A push rod 3 is rotatably connected in the strip-shaped groove 1-2 through a fixed pin 2. Figure 5 A limiting structure 1-5 is arranged at the right side of the bottom of the strip-shaped groove 1-2. The limiting structure 1-5 is a wedge-shaped structure, which is arranged away from the fixed pin 2 on the side of the strip-shaped groove 1-2. The top of the wedge-shaped structure is an inclined surface inclined away from the fixed pin 2 on the side, which is used to limit the limit position of the counterclockwise rotation of the push rod 3 by abutting with the bottom surface of the push rod 3 and cooperating with the fixed pin 2. Figure 6 The bottom of the push rod 3 is provided with a sawtooth structure 3-1 for pushing the anchor rod disc to move to the right. The outer end surface of the sawtooth structure 3-1 is a circular arc surface 3-1-2, which has very small friction when contacting with the steel plate, so as to prevent the push rod 3 from being damaged by extrusion with the steel plate.

[0029] As a preferred example of the present application, the outer dimensions of the upper die matrix 1 are 210 mm x 180 mm x 65 mm, and the outer dimensions of the strip-shaped groove 1-2 are 60 mm x 14 mm x 20 mm.

[0030] As Figures 2-4 , the upper die matrix 1 is provided with a bowl-shaped groove at the bottom, and a strip-shaped groove 1-2 is arranged at the front and rear sides of the bowl-shaped groove. A push rod 3 is rotatably connected in the strip-shaped groove 1-2 through a fixed pin 2. In order to prevent the fixed pin 2 from being loose due to vibration and separated from the upper die matrix 1, the fixed pin 2 is in interference fit with the first pin hole 1-3 and the second pin hole 1-4, that is, the hole diameters of the first pin hole 1-3 and the second pin hole 1-4 are the same and slightly smaller than the diameter of the fixed pin 2. At the same time, in order to ensure that the push rod 3 can rotate smoothly around the fixed pin 2, the hole diameter of the third pin hole 3-3 on the push rod 3 is slightly larger than the diameter of the fixed pin 2.

[0031] As a preferred example of the present application, the outer diameter of the fixed pin 2 is 8.0 mm-8.02 mm, the inner diameter of the first pin hole 1-3 and the counterbore on the upper die matrix 1 matched with the fixed pin 2 is 7.95 mm-7.98 mm, and the inner diameter of the second pin hole 1-4 on the push rod 3 is 8.05 mm-8.1 mm.

[0032] As an optimal example of the utility model, the slope ratio of the wedge-shaped structure is 1:2, the extension length is 10 mm, and the height is 5 mm.

[0033] The following illustrates the use method of the embodiment:

[0034] First, the upper die is assembled and installed on the movable beam of the press. When not started, the upper die body 1 is at rest, under the action of gravity, the push rod 3 rotates counterclockwise around the fixed pin 2 to extend the strip-shaped groove 1-2. Start the press, in the downstroke stage, before contacting the steel plate, the movable beam drives the upper die to accelerate downward, the push rod 3 gradually rotates due to inertia, the upper die gradually approaches the steel plate placed on the lower die, the push rod 3 enters the strip-shaped groove 1-2 upward under the resistance of the steel plate, and the pressure port 4 cooperates with the cutter to cut the steel plate. The upper die continues to descend, the steel plate plastically deforms under the pressure, gradually conforms to the shape of the upper die and the lower die, and the descending speed of the upper die gradually decreases. When the material completely fills the mold cavity, the upper die is at rest, and pressure is maintained for a period of time to ensure the sufficient plastic deformation and size accuracy of the material. After the pressure maintaining is completed, the upper die accelerates upward, under the action of inertia, the free end of the push rod 3 rotates counterclockwise to extend the strip-shaped groove 1-2, the anchor rod disc can overcome the micro-magnetic and the upper die under the push of the anchor rod disc, and move right under the push of the inclined groove 3-1-1 of the sawtooth structure 3-1, so that the anchor rod disc blanking and pushing are more smooth. The push rod 3 rotates counterclockwise to the limit position and remains in the position until the upper die rises to the initial position. Such a cycle can reduce 60% of manual assistance.

[0035] It should be noted that for those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. The scope of the utility model is defined by the claims rather than the above description.

Claims

1. A new type of upper die for a rock bolt disc stamping, comprising an upper die matrix (1), characterised in that: The upper die matrix (1) bottom is provided with a detachable pressure port (4); the upper die matrix (1) bottom is provided with a strip-shaped groove (1-2), and the strip-shaped groove (1-2) is rotatably connected with a push rod (3); the right side of the bottom of the strip-shaped groove (1-2) is provided with a limiting structure (1-5) for limiting the counterclockwise rotation limit position of the push rod (3); the bottom of the push rod (3) is provided with a sawtooth structure (3-1) for pushing the anchor rod disc to move rightward.

2. A new type of anchor rod disc punch upper die according to claim 1, characterized in that: The side of the upper die matrix (1) corresponding to the lower die cutting knife is provided with a dovetail groove (1-1), the top surface of the dovetail groove (1-1) is wide and the bottom surface is narrow, and the inner side surface is an inclined surface; the pressure port (4) is fixed in the dovetail groove (1-1) through a screw plug, the cross section of the pressure port (4) corresponds to the cross section of the dovetail groove (1-1), and the two are locked through the inclined surfaces in contact.

3. A new type of anchor rod disc punch upper die according to claim 2, characterized in that: The cross section of the dovetail groove (1-1) is a right-angled trapezoid with the upper base being 12 mm, the lower base being 15 mm, and the height being 10 mm.

4. A new type of anchor rod disc punch upper die according to claim 1, characterized in that: The bottom of the push rod (3) is provided with a sawtooth structure (3-1) for pushing the anchor rod disc to move rightward, and the outer end surface of the sawtooth structure (3-1) is a circular arc surface (3-1-2).

5. The new type of anchor rod disc punch upper die, according to claim 1, characterized in that: The bottom surface of the upper die matrix (1) is provided with a strip-shaped groove (1-2) on each of the front and rear sides, the push rod (3) is rotatably connected in the strip-shaped groove (1-2) through a fixed pin (2), and the outer diameter of the fixed pin (2) is 8.0 mm-8.02 mm.

6. A new type of punch upper die for a rock bolt disc, according to claim 5, characterized in that: A through hole, i.e. a first pin hole (1-3), for the fixed pin (2) to pass through is arranged between the outer wall of the strip-shaped groove (1-2) and the outer wall of the corresponding side of the upper die matrix (1), a counterbore, i.e. a second pin hole (1-4), for installing the fixed pin (2) is arranged on the inner wall of the strip-shaped groove (1-2), the fixed pin (2) is in interference fit with the first pin hole (1-3) and the second pin hole (1-4), and a third pin hole (3-3) is arranged on the push rod (3), and the third pin hole (3-3) on the push rod (3) is in clearance fit with the fixed pin (2).

7. A new type of punch upper die for a rock bolt disc, according to claim 6, characterized in that: The inner diameter of the first pin hole (1-3) and the second pin hole (1-4) is 7.95 mm-7.98 mm, and the inner diameter of the third pin hole (3-3) is 8.05 mm-8.1 mm.

8. A new type of anchor rod disc punch press upper die according to claim 1, characterized in that: The limiting structure (1-5) is a wedge-shaped structure, which is arranged extending away from the fixed pin (2) on the side of the strip-shaped groove (1-2) away from the fixed pin (2), the top of the wedge-shaped structure is an inclined surface inclined from the side of the fixed pin (2) to the side away from the fixed pin (2), and the inclined surface is in abutment with the bottom surface of the push rod (3) for cooperating with the fixed pin (2) to limit the limit position of the rotation of the push rod (3).

9. A new type of anchor rod disc punch press upper die according to claim 8, characterized in that: The slope ratio of the wedge-shaped structure is 1:2.

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