CN213495905U - A chamfer end mould structure for H type guide rail - Google Patents

Abstract

The utility model discloses a beveling end mould structure for an H-shaped guide rail, which relates to the technical field of moulds and comprises an upper mould base and a lower mould base which are arranged up and down; the clamping assembly comprises a lower cutter for supporting the lower side surface of the web plate of the H-shaped guide rail, a lower pressing block for pressing the upper side surface of the web plate of the H-shaped guide rail downwards and two side pressing blocks for clamping flanges at two sides of the H-shaped guide rail, the lower cutter and the side pressing blocks are arranged on the lower die base, and the lower pressing block is arranged on the upper die base; the lower die base moves downwards to drive the upper knife to move towards the lower knife direction, and the lower knife and the side pressing block both have cutting edge surfaces matched with the upper knife. The utility model discloses can replace present saw to cut technology, carry out the miscut to H type guide rail end.

Description

A chamfer end mould structure for H type guide rail

Technical Field

The utility model relates to the technical field of mold, in particular to a beveling end mould structure for H type guide rail.

Background

In a front door frame assembly of a car, a front door B-pillar guide groove and an H-shaped guide rail are used for glass lifting guide and protect glass from being damaged in lifting. The current production process of the H-shaped guide rail comprises the following steps: rolling, bending, punching, sawing, spot welding and assembling; rolling and bending to produce H-shaped guide rail semi-finished products meeting the section and radian of the product; holes and gaps are formed in the H-shaped guide rail, and the holes and the gaps need to be punched by a punching die and are used for welding and positioning the H-shaped guide rail; the upper end of the H-shaped guide rail is inclined, the section of the H-shaped guide rail is H-shaped, and the requirement on the appearance of the inclined surface is high, so the sawing is the currently selected process.

After the sawing process is adopted, sawing stations are required to be added, 1 operator, 1 sawing machine and 2 sets of sawing jigs are required to be added, and the labor cost and the equipment cost are high; saw cutting needs a saw blade, the saw blade cutting is about 6000PCS, the saw blade needs to be ground, and the maintenance cost of the saw blade is high; the sawing process has very high noise and great harm to human bodies; the sawing rhythm is only 100SET/H, which becomes the rhythm bottleneck of the guide rail production line.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least. Therefore, the embodiment of the utility model provides a chamfer end mould structure for H type guide rail can replace present saw cutting technology, carries out the chamfer to H type guide rail end.

The beveling end head die structure for the H-shaped guide rail comprises an upper die base and a lower die base which are arranged up and down; the clamping assembly comprises a lower cutter for supporting the lower side surface of the web plate of the H-shaped guide rail, a lower pressing block for pressing the upper side surface of the web plate of the H-shaped guide rail downwards and two side pressing blocks for clamping flanges at two sides of the H-shaped guide rail, the lower cutter and the side pressing blocks are arranged on the lower die base, and the lower pressing block is arranged on the upper die base; the lower die base moves downwards to drive the upper knife to move towards the lower knife direction, and the lower knife and the side pressing block both have cutting edge surfaces matched with the upper knife.

In an optional or preferred embodiment, the punching assembly further includes a first fixed block mounted on the lower die holder and a first slider obliquely disposed on the first fixed block, an elastic member is disposed at the bottom of the first slider, the upper knife is fixed on the first slider, the upper die holder is mounted with a first striking block, and the first striking block has a first inclined surface, so that when the upper die holder moves downward, the first striking block drives the first slider to slide downward.

In an optional or preferred embodiment, a base is arranged between the first fixing block and the lower die holder, the upper end surface of the base is obliquely arranged, and the lower die holder is provided with at least one side-preventing block which is used for abutting against the side of the first fixing block so as to offset a lateral force generated by the first sliding block moving obliquely downwards.

In an optional or preferred embodiment, the elastic member is a nitrogen spring, the lower end of the elastic member is connected with the lower die holder through a spring top block, and the upper end of the elastic member is connected with the first sliding block.

In an alternative or preferred embodiment, the upper knife is tip-shaped, and the upper knife has a left edge and a right edge.

In an optional or preferred embodiment, each side pressing block is connected to the lower die holder through a second sliding block, a knife is arranged outside each second sliding block, a slot is formed between each knife and the corresponding second sliding block, the upper die holder is provided with a slotting tool which can be inserted into the slot, and the second sliding block and the slotting tool both have matched wedges, so that the slotting tool is inserted into the slot to drive the second sliding blocks to move.

In an optional or preferred embodiment, the lower cutter is mounted on the lower die base through a second fixed block, the lower pressing block is mounted on the upper die base through a third fixed block, the lower cutter is connected with the second fixed block through a dovetail tenon structure, and the lower pressing block is connected with the third fixed block through a dovetail tenon structure.

Based on the technical scheme, the embodiment of the utility model provides a following beneficial effect has at least: according to the technical scheme, the H-shaped guide rail is placed into the clamping assembly, the lower pressing block and the lower cutting tool clamp the web of the H-shaped guide rail, the side pressing blocks clamp the flanges on two sides of the H-shaped guide rail, and the upper tool of the punching assembly is matched with the edge surfaces of the side pressing blocks and the edge surface of the lower cutting tool when moving downwards, so that the end head of the H-shaped guide rail is obliquely cut. The utility model discloses can replace present saw cutting technology, carry out the miscut to H type guide rail end, can not produce huge noise, maintenance cost also can reduce, and can increase the oblique cutting end mould structure that the station installation is used for H type guide rail on the die of die-cutting process, reducible equipment cost.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples;

fig. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is a perspective view of another perspective of an embodiment of the present invention, wherein the upper die base is not shown;

FIG. 3 is a perspective view of another perspective of an embodiment of the present invention, wherein the upper and lower die holders are not shown;

fig. 4 is a perspective view of a clamping assembly in an embodiment of the invention;

FIG. 5 is a perspective view of an alternative perspective of a clamping assembly in an embodiment of the present invention;

fig. 6 is a perspective view of a punch assembly in an embodiment of the present invention;

fig. 7 is a perspective view of a positioning assembly in an embodiment of the invention;

fig. 8, 9 and 10 are schematic structural views of the adjusting pressing surface of the adjusting disc in the embodiment of the present invention;

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does 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.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 and 3, a chamfer end die structure for an H-shaped guide rail comprises an upper die holder 11, a lower die holder 12, a clamping assembly 20 and a punching assembly 30 which are arranged up and down.

Referring to fig. 4 and 5, the clamping assembly 20 includes a lower cutter 21 for supporting the lower side of the web of the H-shaped guide 100, a lower press block 22 for pressing down the upper side of the web of the H-shaped guide 100, and two side press blocks 23 for clamping the flanges of the two sides of the H-shaped guide 100, wherein the lower cutter 21 and the side press blocks 23 are disposed on the lower die holder 12, and the lower press block 22 is disposed on the upper die holder 11.

Referring to fig. 6, the punching assembly 30 includes an upper blade 31, the lower die holder 12 moves downward to drive the upper blade 31 to move toward the lower blade 21, and both the lower blade 21 and the side pressing block 23 have a cutting edge surface 231 matching with the upper blade 31.

It can be understood that, when the H-shaped guide rail 100 is placed in the clamping assembly 20, the lower pressing block 22 and the lower cutter 21 clamp the web of the H-shaped guide rail 100, the two side pressing blocks 23 clamp the flanges on the two sides of the H-shaped guide rail 100, and the upper cutter 31 of the punching assembly 30 moves downward to match with the edge surfaces 231 of the side pressing blocks 23 and the edge surface 231 of the lower cutter 21, so as to bevel the end of the H-shaped guide rail 100, therefore, no great noise is generated, and the saw blade is not required to be frequently replaced as in the sawing process, and the maintenance cost can be reduced. In addition, the beveling end die structure for the H-shaped guide rail in the embodiment can be installed by adding stations on a stamping die in the stamping and cutting process, and can reduce the equipment cost by utilizing the original equipment in the stamping and cutting process without additionally adding a saw cutter.

As shown in fig. 4 and 5, the end of the H-shaped guide rail 100 is clamped by the clamping assembly 20, the lower cutter 21 supports the lower side surface of the web of the H-shaped guide rail 100, the lower press block 22 moves down along with the upper die holder 11 to press the upper side surface of the web of the H-shaped guide rail 100, and the lower press block 22 is formed in a profiling manner so as to be attached to the upper side surface of the web of the H-shaped guide rail 100. Two side pressing blocks 23 clamp flanges at two sides of the H-shaped guide rail 100, specifically, each side pressing block 23 is connected to the lower die holder 12 through a second slider 24, a rest knife 25 is arranged outside the second slider 24, a slot is arranged between the rest knife 25 and the corresponding second slider 24, the upper die holder 11 is provided with a slotting tool 26 which can be inserted into the slot, and both the second slider 24 and the slotting tool 26 have matched wedges, so that the slotting tool 26 is inserted into the slot to drive the second slider 24 to move. When the upper die holder 11 moves downwards, the two slotting tools 26 are driven to be inserted into the corresponding slots, the wedges of the slotting tools 26 are matched with the wedges of the second sliding block 24, the second sliding block 24 is pushed to move towards the inner side, and therefore the side pressing block 23 fixed on the second sliding block 24 clamps the flange of the H-shaped guide rail 100.

In addition, in order to stabilize and prevent the lower cutter 21 and the lower pressure block 22 from loosening, the lower cutter 21 is mounted on the lower die base 12 through a second fixing block 27, the lower pressure block 22 is mounted on the upper die base 11 through a third fixing block 28, the lower cutter 21 and the second fixing block 27 are connected through a dovetail groove tenon structure, the lower pressure block 22 and the third fixing block 28 are connected through a dovetail groove tenon structure, and the lower cutter and the lower pressure block can be connected and fixed through a fixing connecting block after being connected through the dovetail groove tenon structure.

As shown in fig. 6, the end of the H-shaped guide rail 100 is beveled by the punching assembly 30, and further, the punching assembly 30 further includes a first fixed block 33 mounted on the lower die holder 12 and a first sliding block 32 obliquely disposed on the first fixed block 33, an elastic member 38 is disposed at the bottom of the first sliding block 32, the upper knife 31 is fixed on the first sliding block 32, the first punching block 36 is mounted on the upper die holder 11, and the first punching block 36 has a first oblique surface, so that the first punching block 36 drives the first sliding block 32 to slide downward when the upper die holder 11 moves downward. It can be understood that, as shown in fig. 6, a second hitting block 37 is mounted on the top of the first sliding block 32, the first hitting block 36 moves downward with the upper die holder 11, the first inclined surface of the first hitting block 36 presses the second hitting block 37, so that the second hitting block drives the first sliding block 32 to move downward in an inclined manner, and the upper knife 31 on the first sliding block 32 moves downward in an inclined manner to bevel the end of the H-shaped guide rail 100. The elastic element 38 is a nitrogen spring, the lower end of the elastic element 38 is connected with the lower die holder 12 through a spring top block 39, and the upper end of the elastic element is connected with the first sliding block 32.

Because the inclined setting of base 34 up end, when first slider 32 moved down, can cause the great yawing force to first fixed block 33, so, be provided with base 34 between first fixed block 33 and the die holder 12, the inclined setting of base 34 up end, die holder 12 are installed and are used for leaning on the other at least one of first fixed block 33 side and prevent side piece 35 to offset the yawing force that first slider 32 inclined down moved the production.

The bevel end die structure for the H-shaped guide rail of the embodiment can be installed on a punching machine, and the specific bevel steps are as follows: putting the semi-finished H-shaped guide rail, starting the punch press, driving the upper die holder 11 to move downwards by the punch press, moving the lower press block 22 downwards along with the upper die holder 11 to press the upper side surface of the web plate of the H-shaped guide rail 100, inserting the slotting tool 26 into the slot, and clamping the flange of the H-shaped guide rail 100 by the side press blocks 23. The upper die holder 11 continues to move downwards, the first inclined plane of the first beating block 36 presses the second beating block 37, so that the second beating block drives the first sliding block 32 to move downwards in an inclined mode, the upper knife 31 on the first sliding block 32 moves downwards in an inclined mode, wherein the upper knife 31 is in a tip shape, the upper knife 31 is provided with a left cutting edge and a right cutting edge, the left cutting edge and the right cutting edge of the upper knife 31 are in contact with the H-shaped guide rail, the upper end of the flange vertical to the H-shaped guide rail is sheared after the left cutting edge and the right cutting edge, then the web transverse to the H-shaped guide rail continues to be sheared, finally, the lower end of the flange vertical to the H-shaped guide rail is sheared, and the barb at the lower. The upper die holder 11 moves upwards, the first punch 36 moves upwards along with the upper die holder, the elastic piece 38 resets the first slide block 32, and the upper knife 31 resets.

The H-shaped guide rail is rolled and bent to obtain a semi-finished product, the bent cutting is performed by adopting a traditional cutting die, and the deformation is serious; due to the deformation of the semi-finished product, the H-shaped guide rail is inserted into a beveled end die structure for the H-shaped guide rail, and after the end part is beveled, the end part of the product still has punching deformation but is slightly more than the deformation of roll bending cutting. After a large amount of field debugging and verification, the deformation of the end of the product is controlled within a tolerance range after three or more bevelings. In view of this, in the present embodiment, the chamfered end mold structure for an H-shaped rail further includes a positioning assembly 40 for positioning the H-shaped rail 100 and adjusting the position of the H-shaped rail.

As shown in fig. 7 to 10, the positioning assembly 40 includes a supporting arm 41 and an adjusting plate 43 disposed on the supporting arm 41, the adjusting plate 43 is provided with a plurality of abutting surfaces for abutting against the end of the H-shaped guide rail 100, and the abutting surfaces are switched by adjusting the adjusting plate 43, so that the other end of the H-shaped guide rail 100 and the cutting edge surface 231 are displaced.

Referring to fig. 7 to 10, the abutting surfaces are sequentially arranged on the circumferential wall of the adjusting plate 43, and the abutting surface abutting against one end of the H-shaped guide rail 100 is switched by rotating the adjusting plate 43, and is an arc-shaped surface, and the curvature radius of each abutting surface is different. Specifically, the supporting arm 41 is further provided with a plurality of supporting blocks 42 for supporting the H-shaped guide rail 100, one side of the adjusting disc 43 facing the clamping assembly 20 is provided with a third slider 45, one end of the third slider 45 is provided with a positioning end for abutting against one end of the H-shaped guide rail 100, and the other end of the third slider 45 is provided with an adjusting end for adjusting displacement through the adjusting disc 43. Preferably, the adjustment dial 43 is fitted with an adjustment knob 44 to facilitate rotation of the adjustment dial 43. In this embodiment, three pressing surfaces are provided, and the curvature radii are 15mm, 20mm and 25mm, respectively.

In order to meet the requirement of three times of punching, the adjusting disc 43 in the positioning assembly 40 is designed to be composed of three sections of circular arcs to form three abutting surfaces, and the abutting surfaces with the curvature radiuses of 15mm, 20mm and 22mm can be sequentially acted on the adjusting end of the third sliding block 45 by rotating the adjusting disc 43. Initially, as shown in fig. 8, the H-shaped guide rail 100 is first positioned with a pressing surface having a curvature radius of 15 mm; as shown in fig. 9, the positioning end of the third slider 45 pushes the H-shaped guide rail 100 5mm after the first beveling for the second beveling; a third bevel cut was made with an additional 2mm advance as in fig. 10. And after the beveling for three times is finished, taking out the product.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (7)

1. A chamfer end mould structure for H type guide rail, its characterized in that: comprises that

An upper die holder (11) and a lower die holder (12) which are arranged up and down;

the clamping assembly (20) comprises a lower cutter (21) for supporting the lower side surface of a web plate of the H-shaped guide rail (100), a lower pressing block (22) for pressing the upper side surface of the web plate of the H-shaped guide rail (100) downwards and two side pressing blocks (23) for clamping flanges on two sides of the H-shaped guide rail (100), the lower cutter (21) and the side pressing blocks (23) are arranged on the lower die holder (12), and the lower pressing block (22) is arranged on the upper die holder (11); and

the punching assembly (30) comprises an upper knife (31), the lower die holder (12) moves downwards to drive the upper knife (31) to move towards the direction of the lower knife (21), and the lower knife (21) and the side pressing block (23) are provided with edge surfaces (231) matched with the upper knife (31).

2. The chamfered end mold structure for an H-shaped rail according to claim 1, wherein: die-cut subassembly (30) are still including installing first fixed block (33) and the slope on die holder (12) set up first slider (32) of first fixed block (33), first slider (32) bottom is provided with elastic component (38), upper knife (31) are fixed on first slider (32), first piece (36) of beating is installed in upper die base (11), first piece (36) of beating has first inclined plane, so that when upper die base (11) move down first piece (36) drive first slider (32) slope lapse.

3. The chamfered end mold structure for an H-shaped rail according to claim 2, wherein: the side-proof device is characterized in that a base (34) is arranged between the first fixing block (33) and the lower die holder (12), the upper end face of the base (34) is obliquely arranged, and at least one side-proof block (35) which is used for abutting against the side of the first fixing block (33) is installed on the lower die holder (12) so as to offset the lateral force generated by the oblique downward movement of the first sliding block (32).

4. The chamfered end mold structure for an H-shaped rail according to claim 2, wherein: the elastic piece (38) is a nitrogen spring, the lower end of the elastic piece (38) is connected with the lower die holder (12) through a spring top block (39), and the upper end of the elastic piece is connected with the first sliding block (32).

5. The chamfered end mold structure for an H-shaped rail according to claim 2, wherein: the upper knife (31) is in a tip shape, and the upper knife (31) is provided with a left cutting edge and a right cutting edge.

6. The chamfered end mold structure for an H-shaped rail according to any one of claims 1 to 5, wherein: each side pressing block (23) is connected to the lower die base (12) through a second sliding block (24), a rest cutter (25) is arranged on the outer side of each second sliding block (24), a slot is formed between each rest cutter (25) and the corresponding second sliding block (24), a slotting cutter (26) capable of being inserted into the slot is arranged on the upper die base (11), and the second sliding blocks (24) and the slotting cutter (26) are provided with matched wedges so that the slotting cutter (26) is inserted into the slot to drive the second sliding blocks (24) to move.

7. The chamfered end mold structure for an H-shaped rail according to claim 6, wherein: lower cutter (21) are installed through second fixed block (27) on die holder (12), briquetting (22) are installed through third fixed block (28) on upper die base (11), lower cutter (21) with second fixed block (27) adopt dovetail tenon structural connection, briquetting (22) with third fixed block (28) adopt dovetail tenon structural connection.

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