Special-shaped cutting-off device with periphery holding and shaping functions

Abstract

The special-shaped cutting-off device comprises an upper die plate, a lower die plate, a movable cutter, a static cutter set, a wedge enclasping block, a shaping mechanism and guide seats, the guide seats comprise the left guide seat and the right guide seat which are fixed to the left side and the right side of the lower die plate respectively, and the upper die plate is connected with the left guide seat and the right guide seat through first guide column guide sleeves respectively; the two wedge holding blocks are fixed to the left side and the right side of the upper die plate respectively, the shaping mechanism comprises a pressing shaping mechanism, sliding shaping blocks and a fixed shaping block, the pressing shaping mechanism is connected with the upper die plate through a second guide column guide sleeve, and the fixed shaping block is fixed to the lower die plate and located between the left sliding shaping block and the right sliding shaping block. The sliding shaping block is elastically connected with the guide base, the static cutter set is fixed to the front-back opposite ends of the fixed shaping block and the sliding shaping block, and the movable cutter is fixed to the upper die plate. According to the utility model, multiple processes of cutting and shaping are integrated on the same process on line, so that the production efficiency is improved, and repeated positioning errors are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cutting device especially to a special-shaped cutting device for shaping four-around holding belts of automobile door sill parts. BACKGROUND

[0002] The automobile door sill part is a key safety part of the vehicle body, usually selected from high-strength materials, and finally formed by pre-punching, rolling and cutting. These high-strength materials may exhibit a large rebound during the forming process, and the "open mouth" state may be caused by stress release at the cutting position. In addition, with the iteration of technology updates, the section type and end shape of the automobile door sill are increasingly complex. For a single problem, the existing technology can be completely processed and formed under high-precision requirements. However, when all problems are concentrated in the same door sill part, it is necessary to process and form through multiple processes offline, which will result in low production efficiency, poor size continuous stability, and increased equipment wear and labor intensity. Patent 202111594880.6 discloses a double-station cutting device for rolling online of automobile door sill products, which only includes two cutting mechanisms, and the first cutting mechanism is provided with a first upper die plate, an upper moving knife, a moving knife guide block, a lower static knife, a first lower die plate, and two first lower static knife fixing seats. It is only used for cutting the product, and cannot simultaneously hold and shape the product. SUMMARY

[0003] The utility model provides a special-shaped cutting device for shaping four-around holding belts of automobile door sill parts to overcome the drawbacks of the prior art, integrate the cutting and shaping multiple processes into the same process online, improve the production efficiency, reduce the repeated positioning error, and provide the size continuous stability.

[0004] The utility model solves the technical problems by adopting the following technical scheme:

[0005] A shaped cutting device with a four-sided clamping and shaping mechanism includes an upper template, a lower template, a moving blade, a stationary blade assembly, wedge clamping blocks, a shaping mechanism, and guide seats. The guide seats include a left guide seat and a right guide seat, respectively fixed to the left and right sides of the lower template. The left and right sides of the upper template are connected to the left and right guide seats respectively via first guide posts and guide sleeves. Two sets of wedge clamping blocks are symmetrically fixed to the left and right sides of the upper template, with two blocks spaced apart in each set. The shaping mechanism includes a pressing and shaping mechanism, a sliding shaping block, and a fixed shaping block. The forming block is connected to the upper template via a second guide post and guide sleeve. Two fixed forming blocks are spaced apart front and rear, both fixed on the same center line of the lower template and located between the left and right sets of sliding forming blocks. The sliding forming blocks are connected to the guide seat via a return spring and a discharge bolt. The stationary blade group is fixed at the front and rear opposite ends of the fixed forming block and the sliding forming block, respectively. The top of the moving blade is fixed at the center position of the upper template, and the pressing and forming mechanism below it is provided with a moving blade through hole. The top of the upper template is connected to an external hydraulic cylinder.

[0006] The aforementioned irregular-shaped cutting device with a surrounding clamping and shaping mechanism includes a pressure plate and pressure shaping blocks. The top of the pressure plate is connected to the upper template through the second guide post and guide sleeve. A moving knife passage hole is provided at the center of the pressure plate. The shape of the moving knife passage hole matches the shape of the moving knife. Two identical pressure shaping blocks are fixed to the lower surface of the pressure plate with a front-to-back gap. The gap between the front and back pressure shaping blocks is located on the same vertical line as the moving knife passage hole.

[0007] The aforementioned irregular cutting device with a tight gripping band on all four sides is further provided with a second nitrogen spring on the upper template. The telescopic rod of the second nitrogen spring faces downward. Four second guide posts and four second nitrogen springs are provided. The four second guide posts and four second nitrogen springs are respectively provided at the four corners of the pressure plate. The second nitrogen springs are spaced apart between two adjacent second guide posts and are fixed on the upper template.

[0008] The aforementioned irregular cutting device with a surrounding clamping band has a lower opening groove at the middle position of the lower end of the inclined wedge clamping block along the vertical direction. The unloading bolt is located directly below the lower opening groove. The lower ends of the opposing surfaces of the two inclined wedge clamping blocks arranged opposite each other in the left and right directions are set as inclined surfaces. The lower template is provided with inclined wedge clearance holes, which are located directly below each of the inclined wedge clamping blocks.

[0009] The aforementioned irregular-shaped cutting device with a surrounding clamping and shaping mechanism has a reset spring embedded inside the left and right guide seats and sleeved on one end of the unloading bolt. The other end of the unloading bolt is fixedly connected to the sliding shaping block.

[0010] The four-side embracing band shaping special-shaped cutting device, the two groups of sliding shaping blocks include a left sliding shaping block group and a right sliding shaping block group, which are respectively arranged on the left and right sides of the fixed shaping blocks, the left sliding shaping block group includes a left feeding side sliding shaping block and a left discharging side sliding shaping block which are arranged at intervals, and the right sliding shaping block group includes a right feeding side sliding shaping block and a right discharging side sliding shaping block which are arranged at intervals, and each sliding shaping block is fixed with two discharging bolts at intervals in the vertical direction.

[0011] The four-side embracing band shaping special-shaped cutting device, the two groups of sliding shaping blocks include a left sliding shaping block group and a right sliding shaping block group, which are respectively arranged on the left and right sides of the fixed shaping blocks, the left sliding shaping block group includes a left feeding side sliding shaping block and a left discharging side sliding shaping block which are arranged at intervals, and the right sliding shaping block group includes a right feeding side sliding shaping block and a right discharging side sliding shaping block which are arranged at intervals, and each sliding shaping block is fixed with two discharging bolts at intervals in the vertical direction.

[0012] The four-side embracing band shaping special-shaped cutting device, the two groups of sliding shaping blocks include a left sliding shaping block group and a right sliding shaping block group, which are respectively arranged on the left and right sides of the fixed shaping blocks, the left sliding shaping block group includes a left feeding side sliding shaping block and a left discharging side sliding shaping block which are arranged at intervals, and the right sliding shaping block group includes a right feeding side sliding shaping block and a right discharging side sliding shaping block which are arranged at intervals, and each sliding shaping block is fixed with two discharging bolts at intervals in the vertical direction.

[0013] The four-side embracing band shaping special-shaped cutting device, the two groups of sliding shaping blocks include a left sliding shaping block group and a right sliding shaping block group, which are respectively arranged on the left and right sides of the fixed shaping blocks, the left sliding shaping block group includes a left feeding side sliding shaping block and a left discharging side sliding shaping block which are arranged at intervals, and the right sliding shaping block group includes a right feeding side sliding shaping block and a right discharging side sliding shaping block which are arranged at intervals, and each sliding shaping block is fixed with two discharging bolts at intervals in the vertical direction.

[0014] The four-side embracing band shaping special-shaped cutting device, the two groups of sliding shaping blocks include a left sliding shaping block group and a right sliding shaping block group, which are respectively arranged on the left and right sides of the fixed shaping blocks, the left sliding shaping block group includes a left feeding side sliding shaping block and a left discharging side sliding shaping block which are arranged at intervals, and the right sliding shaping block group includes a right feeding side sliding shaping block and a right discharging side sliding shaping block which are arranged at intervals, and each sliding shaping block is fixed with two discharging bolts at intervals in the vertical direction. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model makes further explanation in combination with the drawings.

[0016] Figure 1 It is the whole device structure schematic view of the utility model.

[0017] Figure 2 It is the cutting device structure schematic view.

[0018] Figure 3 It is the inclined wedge holds tightly block and the shaping mechanism structure schematic view.

[0019] Figure 4 It is the material pressing shaping mechanism structure schematic view.

[0020] Figure 5 It is the fixed shaping block, sliding shaping block and static knife group structure schematic view.

[0021] Figure 6 It is the dynamic knife structure schematic view.

[0022] In the drawing: 1, upper die plate;2, lower die plate;2-1, inclined wedge avoiding hole;3, dynamic knife;4, static knife group;4-1, left infeed side static knife;4-2, right infeed side static knife;4-3, left infeed side static knife;4-4, right infeed side static knife;4-5, left outfeed side static knife;4-6, right outfeed side static knife;5, inclined wedge holds tightly block;5-1, lower opening sliding groove;6, left guide seat;7, right guide seat;8, first guide column guide sleeve;9, first nitrogen gas spring;10, material pressing shaping mechanism;10-1, material pressing plate;10-2, material pressing shaping block;11, sliding shaping block;11-1, left infeed side sliding shaping block;11-2, left outfeed side sliding shaping block;11-3, right infeed side sliding shaping block;11-4, right outfeed side sliding shaping block;12, fixed shaping block;13, second guide column guide sleeve;14, second nitrogen gas spring;15, dynamic knife through hole;16, reset spring;17, unloading bolt;18, front guide seat;19, rear guide seat;20, middle guide seat;21, product piece through hole. DETAILED DESCRIPTION

[0023] The utility model will be further explained in connection with the drawings.

[0024] Referring to Figure 1 , Figure 2 , Figure 4 And Figure 6The utility model four around embrace tightly band shaping's special-shaped cutting device includes upper die plate 1, lower die plate 2, moving knife 3, static knife group 4, inclined wedge embrace tightly block 5, shaping mechanism and guide seat, the guide seat includes left guide seat 6, right guide seat 7, front guide seat 18, rear guide seat 19 and intermediate guide seat 20, and the front and rear left and right four guide seats are fixed on the front and rear left and right four sides of lower die plate 2 respectively, and intermediate guide seat 20 is provided with two, and is fixed in the intermediate position of left guide seat and right guide seat inside, and is fixed on lower die plate, the left and right two sides of upper die plate 1 are connected with left guide seat 6 and right guide seat 7 respectively through first guide column guide bush 8, first guide column guide bush includes first guide column and first guide bush, first guide column is fixed on upper die plate, and first guide bush is fixed on left guide seat and right guide seat, and first guide column and first guide bush are sliding fit, the operating hole of first guide column is set up on left guide seat 6 and right guide seat 7, left guide seat 6 and right guide seat 7 still set up two first nitrogen gas springs 9 respectively, and the telescopic rod end of first nitrogen gas spring faces upper die plate, and upper die plate 1 realizes up and down movement under the action of external oil cylinder, and first guide column guide bush 8 is used for the guiding effect of up and down movement, and product piece through hole 21 is set up on the front and rear two guide seats, which is convenient for product piece to enter and exit clamping cutting device, inclined wedge embrace tightly block 5 is provided with two groups, is fixed on the left and right two sides of upper die plate 1 respectively, and the same group is provided with two and is spaced apart, the inner side of the lower end of each inclined wedge embrace tightly block is provided as inclined plane, and the intermediate position on the lower end is provided with lower opening sliding slot 5-1 along the vertical direction, unloading bolt 17 is located just below lower opening sliding slot 5-1, and inclined wedge avoidance hole 2-1 is set up on the lower die plate just below inclined wedge embrace tightly block 5, and the lower opening sliding slot of inclined wedge embrace tightly block passes through unloading bolt under the driving of upper die plate, realizes down or up, and is used for embracing tightly shaping block,

[0025] The shaping mechanism includes a material pressing shaping mechanism 10, a sliding shaping block 11 and a fixed shaping block 12, the material pressing shaping mechanism 10 includes a material pressing plate 10-1 and a material pressing shaping block 10-2, the top end of the material pressing plate 10-1 is connected with the upper die plate 1 through the second guide column guide sleeve 13, the second guide column guide sleeve 13 is provided with four groups, each including a second guide column and a second guide sleeve, the second guide column is fixed on the material pressing plate, the second guide sleeve is fixed on the upper die plate, the second guide column passes through the second guide sleeve on the upper die plate, the second guide column and the second guide sleeve are in sliding fit, the upper die plate is also provided with a second nitrogen gas spring 14, the second nitrogen gas spring is provided with four groups at intervals, the end of the telescopic rod of which is towards the material pressing plate, a moving cutter passing hole 15 is arranged at the center position of the material pressing plate 10-1, the shape of the moving cutter passing hole 15 matches the shape of the moving cutter 3, the material pressing shaping block 10-2 is provided as two identical blocks, which are fixed on the lower surface of the material pressing plate 10-1 at intervals, the gap between the front and rear material pressing shaping blocks is on the same vertical line with the moving cutter passing hole, so as to facilitate the up-and-down movement of the moving cutter; the fixed shaping block 12 is provided with two groups at intervals, which are fixed on the same center line of the lower die plate 2 and located between the left and right groups of the sliding shaping block 11, the left and right groups of the sliding shaping block 11 are connected with the left and right guide seats through a reset spring 16 and an unloading screw 17 respectively, the reset spring 16 is embedded in the left and right guide seats 6 and 7 and sleeved on one end of the unloading screw 17, the other end of the unloading screw 17 is fixedly connected with the sliding shaping block 11, under the driving of the reset spring 16 and the unloading screw 17, the inclined wedge clamping block presses and connects the left and right groups of the sliding shaping block 11, so that it can slide left and right, for clamping the middle fixed shaping block, the static cutter group 4 is fixed on the opposite ends of the fixed shaping block and the sliding shaping block, the moving cutter 3 is a special-shaped cutter, the top of which is fixed on the center position of the upper die plate 1, the top of the upper die plate 1 is connected with an external oil cylinder (not shown, the oil cylinder can be fixed on a workbench), which is used as the power for driving the upper die plate to move up and down.

[0026] Referring to Figure 3 and Figure 5The sliding shaping blocks 11 include a left sliding shaping block group and a right sliding shaping block group, which are arranged on the left and right sides of the middle fixed shaping blocks, respectively. The left sliding shaping block group includes a left inlet side sliding shaping block 11-1 and a left outlet side sliding shaping block 11-2 arranged at intervals in front and back, and the right sliding shaping block group includes a right inlet side sliding shaping block 11-3 and a right outlet side sliding shaping block 11-4 arranged at intervals in front and back. Each sliding shaping block is fixed with two unloading bolts 17 at intervals in the vertical direction. The stationary knife group 4 includes an inlet side stationary knife 4-1, an outlet side stationary knife 4-2, a left inlet side stationary knife 4-3, a right inlet side stationary knife 4-4, a left outlet side stationary knife 4-5, and a right outlet side stationary knife 4-6. The inlet side stationary knife 4-1 and the outlet side stationary knife 4-2 are fixed on the opposite ends of the two fixed shaping blocks 12, respectively. The left inlet side stationary knife 4-3 and the left outlet side stationary knife 4-5 are fixed on the opposite surfaces of the front and back oppositely arranged left inlet side sliding shaping block 11-1 and left outlet side sliding shaping block 11-2, respectively. The right inlet side stationary knife 4-4 and the right outlet side stationary knife 4-6 are fixed on the opposite surfaces of the front and back oppositely arranged right inlet side sliding shaping block 11-3 and right outlet side sliding shaping block 11-4, respectively.

[0027] Working process: The external oil cylinder applies force on the upper die plate, which moves downward, driving the inclined wedge holding block, the moving knife, and the material pressing and shaping mechanism to move downward. During the downward movement of the four inclined wedge holding blocks, the lower inclined surfaces thereof respectively contact the upper inclined surfaces of the left inlet side sliding shaping block, the left outlet side sliding shaping block, the right inlet side sliding shaping block, and the right outlet side sliding shaping block. At the same time, the four sliding shaping blocks gradually move to the center under the guidance of the front and back guide seats and the middle guide seat, and are pressed against the fixed shaping blocks in the middle. After the inclined wedge holding blocks press the sliding shaping blocks and the stationary knife group, the material pressing plate, in a sliding cooperation with the upper die plate, drives the material pressing and shaping blocks to press the rocker panel from above into the special-shaped groove formed by the four sliding shaping blocks and the stationary knife group. The profiles of the material pressing and shaping blocks, the stationary knife group, and the lower sliding shaping blocks are matched and fitted with the corresponding surfaces of the rocker panel. After the material pressing and shaping blocks are fitted with the rocker panel, the second guide column guide sleeve, driven by the external power, still moves, causing the end of the second nitrogen gas spring telescopic rod to contact and act on the material pressing plate, thereby providing pressing force and shaping force for the material pressing and shaping blocks during the cutting process of the special-shaped moving knife. The special-shaped moving knife continues to move downward to complete the cutting of the rocker panel. After cutting is completed, the upper die plate moves upward under the action of the external power, and the first nitrogen gas spring installed on the left and right guide blocks assists the movement of the upper die plate. Under the action of the material pressing reset spring (second nitrogen gas spring) and the reset spring, the sliding shaping blocks and the inclined wedge holding blocks return to the initial position. The entire cutting device working process is completed.

Claims

1. A four-side holding belt shaping and profile cutting apparatus, characterized by: The device comprises an upper die plate (1), a lower die plate (2), a moving knife (3), a static knife group (4), a wedge holding block (5), a shaping mechanism and a guide seat, the guide seat comprises a left guide seat (6) and a right guide seat (7), which are respectively fixed on the left and right sides of the lower die plate (2), the left and right sides of the upper die plate (1) are connected with the left and right guide seats (6) and (7) through first guide column guide sleeves (8), the wedge holding block (5) is provided with two groups, which are respectively fixed on the left and right sides of the upper die plate (1) and are provided with two in front and back of the same group, the shaping mechanism comprises a pressing shaping mechanism (10), a sliding shaping block (11) and a fixed shaping block (12), the pressing shaping mechanism (10) is connected with the upper die plate (1) through a second guide column guide sleeve (13), the fixed shaping block (12) is provided with two in front and back and is fixed on the same center line of the lower die plate (2) and is located between the left and right groups of the sliding shaping block (11), the sliding shaping block (11) is connected with the guide seat through a reset spring (16) and a discharging bolt (17), the static knife group (4) is respectively fixed on the front and back opposite ends of the fixed shaping block and the sliding shaping block, the moving knife (3) is fixed on the center position of the upper die plate (1), the pressing shaping mechanism below the moving knife is provided with a moving knife passing hole (15), and the top of the upper die plate (1) is connected with an external oil cylinder.

2. The quadrilateral shaped banding and shaping device of claim 1, wherein: The pressing shaping mechanism (10) comprises a pressing plate (10-1) and a pressing shaping block (10-2), the top end of the pressing plate (10-1) is connected with the upper die plate (1) through the second guide column guide sleeve (13), the center position of the pressing plate (10-1) is provided with a moving knife passing hole (15), the shape of the moving knife passing hole (15) is matched with the shape of the moving knife (3), and the pressing shaping block (10-2) is provided as two identical blocks and is fixed on the lower surface of the pressing plate (10-1) in front and back, and the gap between the front and back pressing shaping blocks is located on the same vertical line with the moving knife passing hole.

3. The four-side hug belt shaping and profile cut-off apparatus according to claim 2, wherein: The upper die plate is also provided with a second nitrogen gas spring (14), the second nitrogen gas spring is provided with a telescopic rod which faces downward, the second guide column guide sleeve (13) and the second nitrogen gas spring (14) are respectively provided with four, the four second guide column guide sleeves (13) are respectively arranged on the four corners of the pressing plate (10-1), and the second nitrogen gas springs (14) are arranged between adjacent two second guide column guide sleeves and are fixed on the upper die plate.

4. The quadrilateral shaped cut-off device of claim 1, wherein: The middle position of the lower end of the wedge holding block (5) is provided with a lower opening sliding groove (5-1) in the vertical direction, the discharging bolt (17) is located directly below the lower opening sliding groove (5-1), the opposite faces of the two wedge holding blocks (5) arranged in the left and right directions are provided with inclined faces, and the lower die plate (2) is provided with wedge avoiding holes (2-1) which are respectively located directly below each wedge holding block (5).

5. The quadrilateral shaped cut-off device of claim 1 wherein: The reset spring (16) is embedded in the left guide seat (6) and the right guide seat (7) and is sleeved on one end of the discharging bolt (17), and the other end of the discharging bolt (17) is fixedly connected with the sliding shaping block (11).

6. The four-sided grip belt shaping and profiled cutting device of claim 1, wherein: The two groups of sliding shaping blocks (11) include a left sliding shaping block group and a right sliding shaping block group and are arranged on the left and right sides of the fixed shaping blocks, the left sliding shaping block group includes left inlet-side sliding shaping blocks (11-1) and left outlet-side sliding shaping blocks (11-2) which are arranged at intervals in front and back, and the right sliding shaping block group includes right inlet-side sliding shaping blocks (11-3) and right outlet-side sliding shaping blocks (11-4) which are arranged at intervals in front and back, and each sliding shaping block is fixed with two discharging bolts (17) at intervals in the vertical direction.

7. The four-sided grip belt shaping and profiled cutting apparatus of claim 6, wherein: The stationary knife group (4) includes inlet-side stationary knives (4-1), outlet-side stationary knives (4-2), left inlet-side stationary knives (4-3), right inlet-side stationary knives (4-4), left outlet-side stationary knives (4-5) and right outlet-side stationary knives (4-6), the inlet-side stationary knives (4-1) and the outlet-side stationary knives (4-2) are fixed on the opposite ends of the two fixed shaping blocks (12), the left inlet-side stationary knives (4-3) and the left outlet-side stationary knives (4-5) are fixed on the opposite surfaces of the front and back oppositely arranged left inlet-side sliding shaping blocks (11-1) and left outlet-side sliding shaping blocks (11-2), and the right inlet-side stationary knives (4-4) and the right outlet-side stationary knives (4-6) are fixed on the opposite surfaces of the front and back oppositely arranged right inlet-side sliding shaping blocks (11-3) and right outlet-side sliding shaping blocks (11-4).

8. The four-sided grip belt shaping and die cutting apparatus of claim 1, wherein: The guide seat further includes a front guide seat (18), a rear guide seat (19) and a middle guide seat (20), the front guide seat (18) and the rear guide seat (19) are fixed on the front and rear sides of the lower die plate (2), product piece through holes (21) are formed in the middle portions of the front and rear guide seats, the middle guide seat (20) is provided with two and is fixed on the middle positions of the inner sides of the left guide seat (6) and the right guide seat (7) and is fixed on the bottom of the lower die plate.

9. The four-sided grip belt shaping and profiled cutting apparatus of claim 1, wherein: Two first nitrogen gas springs (9) are arranged on the left guide seat (6) and the right guide seat (7) respectively, and the telescopic rod ends thereof are directed upwards.

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