Reverse spring-back compensation device for cold-formed ultrahigh-strength beam body part

Abstract

The utility model provides a rebound reverse compensation device for a cold-formed ultrahigh-strength beam body part. A hydraulic cylinder controls a lifting platform to descend, and the lifting platform drives an upper die insert to press downwards through a plurality of nitrogen cylinders penetrating through a middle platform; the multiple sets of reset lifting assemblies provide lifting guide for the upper die insert and drive the upper die insert to be lifted through stopping gaskets of the reset lifting assemblies and stopping of the lifting platform. And the four groups of jacking units control the reshaping block to turn over through the sliding butt joint of the driving block and the reshaping block and the reset elastic force of the reset spring, and are matched with the upper die insert and the lower die insert to jointly complete the reshaping of the product. The reverse compensation type automatic shaping device can carry out reverse compensation type automatic shaping treatment on a notch of an ultra-high-strength beam body part, improves working efficiency, and is simple in structure and convenient to mount and dismount.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-strength steel plate profile processing equipment for automobiles, in particular to a cold-formed ultra-high-strength beam body part springback reverse compensation device. Background Art

[0002] Figure 1 The figure is a three-dimensional schematic diagram of a beam body for a certain automobile. The beam body is made of ultra-high-strength martensitic steel with a yield strength of 1500Mpa and is formed by a cold forming roll forming process. After forming, it is necessary to cut the side wing parts (11, 12) on both sides of the middle part 10 at the position shown in the figure. Since the material used in this product is very hard, rebound deformation occurs at the cut 13 after cutting. Therefore, it is necessary to design a shaping device to eliminate the deformation problem of the product. Utility Model Content

[0003] In view of this, the utility model proposes a cold-formed ultra-high-strength beam body springback reverse compensation device, comprising:

[0004] A cold-formed ultra-high-strength beam body springback reverse compensation device, comprising:

[0005] A base, on which an intermediate platform and a top platform are supported and fixedly connected in sequence, and the lifting platform is located between the intermediate platform and the top platform;

[0006] A hydraulic cylinder, whose cylinder body is fixed on the top platform, and whose piston rod passes through the top platform and contacts the upper surface of the lifting platform through a connecting piece;

[0007] The lower die insert is fixed on the base, and the upper die insert is located between the lower die insert and the middle platform;

[0008] Multiple nitrogen cylinders, the tops of the cylinders are fixed to the lifting platforms respectively, and the piston rods are in contact with the upper mold inserts;

[0009] Multiple groups of reset and pull components, each group of reset and pull components includes a bolt, the threaded rod of the bolt is sleeved with a rigid sleeve, the middle platform is passed through and fixed with a bearing sleeve, and the rigid sleeve slides through the bearing sleeve; the lower end of the bolt rod under the middle platform is fixed to the upper mold insert; the bolt rod is also sleeved with a stop washer, and the stop washer is clamped and fixed to the top of the bolt through the bolt head and the top of the rigid sleeve; the upper part of each group of reset and pull components is also passed through the corresponding countersunk through hole on the lifting platform, and the stop washer can abut against the annular stop shoulder of the countersunk through hole for stop;

[0010] The base is also provided with two groups of top compensation units on the left and right sides of the clamping unit composed of the upper mold insert and the lower mold insert, and each group of top compensation units includes: a driving block and a shaping block; the shaping block is hinged to the hinged ear seat fixed on the base through a pin shaft, and the shaping block is located on both sides of the pin shaft to form an upwardly protruding abutment joint and a shaping head respectively; the top of the driving block is fixed to the lifting platform, and the bottom end is slidably abutted with the abutment joint of the shaping block; each shaping block is also matched with a reset spring, one end of the reset spring is fixed to the shaping block near the abutment joint, and the other end is fixed to the support block on the base, and the extension and contraction direction of the reset spring is basically consistent with the lifting direction of the driving block.

[0011] Furthermore, it also includes two groups of guide components, which are used to slide and guide the lifting of the lifting platform. Each group of guide components includes a screw rod. The lower end of the bolt is threaded and fixed to the middle platform. The threaded rod body of the bolt is sleeved with a rigid sleeve. The lifting platform is passed through and fixed with a bearing sleeve, and the rigid sleeve slides through the bearing sleeve on the lifting platform. The bolt rod body is also sleeved with a stop washer, and the stop washer is clamped and fixed to the top of the bolt through the bolt head and the top of the rigid sleeve, and the stop washer can abut against the upper surface of the lifting platform to stop.

[0012] Furthermore, four rigid limit columns are fixedly arranged on the middle platform, and the top of each rigid limit column can be against the lifting platform, thereby achieving the travel limit of the lifting platform's descent.

[0013] Furthermore, an avoidance groove for avoiding the shaping head of the shaping block is provided on the lower die insert.

[0014] Furthermore, an adjustment pad is connected between the top of the driving block and the lifting platform.

[0015] Furthermore, two handles are provided, and the handles are fixed on both sides of the top platform.

[0016] Furthermore, in the product conveying direction, a guide assembly is provided to guide the conveying of the product to be shaped, and a passage slot for the product to pass through is formed on the guide assembly, and guide pulleys are provided at the edges of the passage slots.

[0017] Furthermore, the lifting platform is fixedly connected with a sensing sheet, and the top platform is installed with a displacement sensor via a mounting frame.

[0018] The utility model can perform reverse compensation type automatic shaping processing on the cutout of the ultra-high strength beam body part, thereby improving the working efficiency, having a simple structure and being easy to install and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and the description thereof are used to explain the present invention and do not constitute an improper limitation on the present invention. A person of ordinary skill in the art can obtain other relevant drawings based on these drawings without making any creative effort.

[0020] Figure 1 A three-dimensional schematic diagram of a beam body product to be shaped;

[0021] Figure 2 It is the front view of the utility model;

[0022] Figure 3 It is a three-dimensional diagram of the utility model;

[0023] Figure 4 It is a top view of the utility model;

[0024] Figure 5 for Figure 4 Middle AA section view;

[0025] Figure 6 for Figure 4 Middle BB section view;

[0026] Figure 7 It is a schematic diagram mainly showing the structure between the middle platform and the lifting platform;

[0027] Figure 8 for Figure 7 Exploded view of the main structure shown.

[0028] Reference numerals in the figures:

[0029] Product 1; middle part 10; left wing 11; right wing 12; cutout 13;

[0030] Base 21;

[0031] Intermediate platform 22; lifting platform 23; avoidance hole 231; top platform 24; guide assembly 25; through slot 251; guide pulley 252; support block 261, support block 262;

[0032] Lower die insert 3; avoidance groove 31; upper die insert 4;

[0033] Shaping block 51; abutment 511; shaping head 512; shaft hole 513; driving block 52; adjusting pad 522; hinged ear seat 53 pin 54; guide pressing piece 55; return spring 56;

[0034] Hydraulic cylinder 61; nitrogen cylinder 62; rigid limit column 63;

[0035] Reset lifting assembly 65; bolt 651; rigid sleeve 652; stop washer 653;

[0036] Guide assembly 66; bolt 661; rigid sleeve 662; stop washer 663;

[0037] Displacement sensor 71; sensor sheet 72;

[0038] Carrying handle 8. DETAILED DESCRIPTION

[0039] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0040] In the description of the embodiments of the present invention, it should be noted that the indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the application product is usually placed when in use, or is the orientation or position relationship commonly understood by technical personnel in this field. It is only for the convenience of describing the present invention or simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] The term "plurality" in the present invention refers to more than two (including two). The terms "first", "second" and the like are only used to distinguish descriptions and should not be understood as indicating or implying relative importance.

[0042] Unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0043] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0044] The utility model includes a base 21, above which an intermediate platform 22 and a top platform 24 are fixedly connected at intervals by support blocks 261 and 262, respectively, and a lifting platform 23 is located between the intermediate platform 22 and the top platform 24; a cylinder body of a hydraulic cylinder 61 is fixed on the top platform 24, a piston rod of the hydraulic cylinder 61 passes through the top platform 24 and abuts against the upper surface of the lifting platform 23 through a connecting piece, that is, the hydraulic cylinder 61 provides downward pressure for the lifting platform 23 to descend, but the hydraulic cylinder 61 is not required to directly drive the lifting platform 23 to lift.

[0045] Combination Figure 4 , Figure 5 and Figure 6As shown, an upper mold insert 4 and a lower mold insert 3 are provided between the middle platform 22 and the base 21, wherein the lower mold insert 3 is fixed on the base 21, and the upper mold insert 4 is located directly above the lower mold insert 3, and can be raised and lowered relative to the lower mold insert 3 to achieve clamping and disengagement with the lower mold insert 3.

[0046] Combination Figure 7 As shown, four nitrogen cylinders 62 and two sets of reset and pull assemblies 65 are arranged above the upper mold insert 4;

[0047] See also Figure 6 Each nitrogen cylinder 62 passes through the middle platform 22 and leaves a movable gap therebetween. The top of the cylinder body of the nitrogen cylinder 62 is fixed to the lifting platform 23, and the piston rod abuts against the upper mold insert 4. Preferably, a blind hole 41 is provided on the upper mold insert 4 for the piston rod of the nitrogen cylinder 62 to be embedded and abutted, so as to prevent the piston rod from falling off and reduce the height of the mechanism.

[0048] See also Figure 6 Each set of reset and lifting components 65 includes a bolt 651, the threaded rod of the bolt 651 is sleeved with a rigid sleeve 652, the middle platform 22 is passed through and fixed with a bearing sleeve, and the rigid sleeve 652 slides through the bearing sleeve, so that the threaded rod of the bolt 651 can slide through the middle platform 22; the lower end of the rod of the bolt 651 located under the middle platform 22 is fixed to the upper mold insert 4; the rod of the bolt 651 is also sleeved with a stop washer 653, and the stop washer 653 is clamped and fixed to the top of the bolt 651 through the bolt head of the bolt 651 and the top of the rigid sleeve 652. The upper part of each set of reset and lifting components 65 also passes through the corresponding countersunk through hole 231 opened on the lifting platform 23, wherein the rigid sliding sleeve 652 passes through the fine hole section of the countersunk through hole 231 and slides with it, the stop washer 653 and the bolt head of the bolt 651 are placed in the coarse hole section of the countersunk through hole 231, and the stop washer 653 can abut against the annular shoulder of the countersunk through hole 231 for stop, that is, when the lifting platform 23 rises, the stop washer 653 cooperates with the stop of the annular shoulder of the countersunk through hole 231 to drive the reset and lifting components 65 and the upper mold insert 4 to rise together; and when the lifting platform 23 descends, the coarse hole section of the countersunk through hole 231 provides a certain retraction space for the stop washer 653 and the bolt head of the bolt 651, thereby avoiding interference with the descending stroke of the lifting platform 23.

[0049] Preferably, Figure 3 , Figure 5As shown, two sets of guide components 66 are also included, which are used to slide and guide the lifting of the lifting platform 23. Specifically, each set of guide components 66 includes a screw rod 661, the lower end of the bolt 661 is screwed and fixed with the middle platform, the threaded rod body of the bolt 661 is sleeved with a rigid sleeve 662, the lifting platform 23 is passed through and fixed with a bearing sleeve, and the rigid sleeve 662 slides through the bearing sleeve on the lifting platform 23, so that the threaded rod body of the bolt 661 can slide through the lifting platform 23, thereby realizing the sliding guidance of the lifting platform; in addition, the rod body of the bolt 661 is also sleeved with a stop washer 663, and the stop washer 663 is clamped and fixed to the top of the bolt 651 through the bolt head of the bolt 661 and the top of the rigid sleeve 662, and the stop washer 663 can abut against the upper surface of the lifting platform 23 to stop, thereby realizing the travel limit of the lifting of the lifting platform 23.

[0050] Preferably, four rigid limit columns 63 are fixedly provided on the intermediate platform 22 , and the top of each rigid limit column 63 can abut against the lifting platform 23 , thereby achieving a travel limit for the descent of the lifting platform 23 .

[0051] The base 21 is also provided with a pair (two groups) of top-compensating units on the left and right sides of the clamping unit composed of the upper mold insert 4 and the lower mold insert 3, that is, there are four groups of top-compensating units in total. The four groups of top-compensating units use the driving power transmitted by the downward pressure of the lifting platform 23 to act synchronously. The two groups of top-compensating units on the same side respectively perform top-up compensation on the side wings on both sides of the side cut of the product, and cooperate with the clamping unit to jointly complete the shaping of the product cut. Specifically:

[0052] Each group of top-compensating units includes: a driving block 52 that can be lifted and lowered in the vertical direction and a shaping block 51 that can be flipped around a pin shaft 54; specifically, the shaping block 51 is hinged to a hinged ear seat 53 fixed on the base 21 through the pin shaft 54, and the shaping block 51 is located on both sides of the pin shaft 54 ​​to form an upwardly protruding abutment joint 511 and a shaping head 512; the top of the driving block 52 is fixed to the lifting platform 23, and the bottom end of the driving block 52 is slidably abutted against the abutment joint 511 of the shaping block 51; each shaping block 51 is also matched with a reset spring 56, one end of the reset spring 56 is fixed to the shaping block 51 near the abutment joint 511, and the other end is fixed to the support block 261 on the base, the telescopic direction of the reset spring 56 is basically consistent with the lifting direction of the driving block 52, and the reset force is provided by the reset spring 56.

[0053] Preferably, an avoidance groove 31 for avoiding the shaping head 512 of the shaping block 51 is provided on the lower mold insert 3 .

[0054] Furthermore, according to travel requirements, an adjustment pad 522 with replaceable thickness may be connected between the top of the driving block 52 and the lifting platform 23 .

[0055] Preferably, the whole device is also equipped with two handles 8 for lifting and carrying.

[0056] Preferably, Figure 2 , Figure 3 As shown, in the product conveying direction of the device, a guide component 25 is also provided to guide the conveying of the product to be shaped, and a passing slot 51 for the product to pass through is formed on the guide component 25. Guide pulleys 252 are also provided on the edges of the passing slot 51 to avoid interference between the product and the passing slot 51 and avoid friction damage.

[0057] Further, if Figure 3 As shown, the lifting platform 23 is fixedly connected with a sensing sheet 72, and the top platform 24 is installed with a displacement sensor 71 via a mounting frame, which is used to monitor whether the corresponding stroke of the lifting platform is in place.

[0058] Working principle:

[0059] The hydraulic cylinder 61 is pressurized to drive the lifting platform 23 downward, and the guide assembly 66 provides guidance for the lifting platform;

[0060] On the one hand, the lifting platform 23 drives the four nitrogen cylinders 62 to press down, and the nitrogen cylinders 62 drive the upper mold insert 4 to press down, the reset and pull assembly 65 provides guidance for the upper mold insert 4, and the rigid limit column 63 provides a limit for the descending stroke of the lifting platform 23. The upper mold insert 4 and the lower mold insert 3 clamp and shape the middle main part of the product 1 to be shaped. The four nitrogen cylinders 62 provide a slightly elastic buffer downward pressure for the upper mold insert 4 to avoid the clamping damage of the upper mold insert 4 and the lower mold insert 3 to the product 1 caused by rigid direct connection conduction;

[0061] On the other hand, the lifting platform 23 descends and drives the driving blocks 52 of the top-filling units on both sides to press downward, and the bottom end of the driving block 52 slides against the abutment joint of the shaping block 51 and presses downward, driving the shaping block 51 to flip around the pin 54, and the shaping head 512 tilts upward to squeeze the outer edges of both sides of the cut of the product 1 upward for a certain stroke;

[0062] After the shaping extrusion is completed, the hydraulic cylinder 61 is controlled to release pressure. On the one hand, the four nitrogen cylinders 62 provide a certain amount of power for the lifting platform 24 to rise, and provide support force to maintain the position after the lifting platform 24 rises to its position; on the other hand, the reset springs 56 of the four groups of top compensation units provide the main power for the lifting platform 24 to rise, which drives their respective shaping blocks 51 to reset and flip, and the abutment joint 511 pushes the driving block 52 to rise, driving the lifting platform 24 to rise, when the stop washer 653 of the reset lifting assembly 65 plays a stopping role, driving the upper mold insert 4 to lift a certain stroke, and the lifting stroke only needs to meet the gap between the upper mold insert 4 and the lower mold insert 3 is enough to extract the previous product and insert the next product; the stop washer 663 of the guide assembly 66 plays a limiting role in the lifting stroke of the lifting platform 23.

[0063] When the shaping head 512 and the upper die insert 4 are separated from the pressing contact with the product 1, both sides of the cut of the product 1 rebound to a certain extent, thus meeting the shaping requirement of rebound reverse compensation.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cold-formed ultra-high-strength beam body springback reverse compensation device, characterized in that: include: A base, on which an intermediate platform and a top platform are supported and fixedly connected in sequence, and the lifting platform is located between the intermediate platform and the top platform; A hydraulic cylinder, whose cylinder body is fixed on the top platform, and whose piston rod passes through the top platform and contacts the upper surface of the lifting platform through a connecting piece; The lower die insert is fixed on the base, and the upper die insert is located between the lower die insert and the middle platform; Multiple nitrogen cylinders, the tops of the cylinders are fixed to the lifting platforms respectively, and the piston rods are in contact with the upper mold inserts; Multiple groups of reset and pull components, each group of reset and pull components includes a bolt, the threaded rod of the bolt is sleeved with a rigid sleeve, the middle platform is passed through and fixed with a bearing sleeve, and the rigid sleeve slides through the bearing sleeve; the lower end of the bolt rod under the middle platform is fixed to the upper mold insert; the bolt rod is also sleeved with a stop washer, and the stop washer is clamped and fixed to the top of the bolt through the bolt head and the top of the rigid sleeve; the upper part of each group of reset and pull components is also passed through the corresponding countersunk through hole on the lifting platform, and the stop washer can abut against the annular stop shoulder of the countersunk through hole for stop; The base is also provided with two groups of top compensation units on the left and right sides of the clamping unit composed of the upper mold insert and the lower mold insert, and each group of top compensation units includes: a driving block and a shaping block; the shaping block is hinged to the hinged ear seat fixed on the base through a pin shaft, and the shaping block is located on both sides of the pin shaft to form an upwardly protruding abutment joint and a shaping head respectively; the top of the driving block is fixed to the lifting platform, and the bottom end is slidably abutted with the abutment joint of the shaping block; each shaping block is also matched with a reset spring, one end of the reset spring is fixed to the shaping block near the abutment joint, and the other end is fixed to the support block on the base, and the extension and contraction direction of the reset spring is basically consistent with the lifting direction of the driving block.

2. The cold-formed ultra-high strength beam body springback reverse compensation device according to claim 1, characterized in that: It also includes two sets of guide components for slidingly guiding the lifting of the lifting platform. Each set of guide components includes a screw rod. The lower end of the bolt is threaded and fixed to the middle platform. The threaded rod body of the bolt is sleeved with a rigid sleeve. The lifting platform is passed through and fixed with a bearing sleeve. The rigid sleeve slides through the bearing sleeve on the lifting platform. The bolt rod body is also sleeved with a stop washer. The stop washer is clamped and fixed to the top of the bolt through the bolt head and the top of the rigid sleeve, and the stop washer can abut against the upper surface of the lifting platform to stop.

3. The cold-formed ultra-high strength beam body springback reverse compensation device according to claim 1, characterized in that: Four rigid limit columns are also fixedly arranged on the middle platform, and the top of each rigid limit column can be against the lifting platform, thereby realizing the travel limit of the lifting platform's descent.

4. The cold-formed ultra-high strength beam body springback reverse compensation device according to claim 1, characterized in that: The lower die insert is provided with an avoidance groove for avoiding the shaping head of the shaping block.

5. The cold-formed ultra-high strength beam body springback reverse compensation device according to claim 1, characterized in that: An adjusting pad is also connected between the top of the driving block and the lifting platform.

6. The cold-formed ultra-high strength beam body springback reverse compensation device according to claim 1, characterized in that: It is also equipped with two handles, which are fixed on both sides of the top platform.

7. The cold-formed ultra-high strength beam body springback reverse compensation device according to claim 1, characterized in that: In the product conveying direction, a conveying component is also provided to guide the conveying of the product to be shaped. A passing slot for the product to pass through is formed on the conveying component, and guide pulleys are respectively provided at the edges of the passing slot.

8. The cold-formed ultra-high strength beam body springback reverse compensation device according to claim 1, characterized in that: The lifting platform is fixed with a sensing sheet, and the top platform is installed with a displacement sensor via a mounting frame.

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