CN112857172A - Length measuring device for machining automobile sheet metal part - Google Patents

Length measuring device for machining automobile sheet metal part Download PDF

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Publication number
CN112857172A
CN112857172A CN202011597244.4A CN202011597244A CN112857172A CN 112857172 A CN112857172 A CN 112857172A CN 202011597244 A CN202011597244 A CN 202011597244A CN 112857172 A CN112857172 A CN 112857172A
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CN
China
Prior art keywords
sheet metal
wall
transmission
rod
roller
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Pending
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CN202011597244.4A
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Chinese (zh)
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韩鼎
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Individual
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Individual
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Priority to CN202011597244.4A priority Critical patent/CN112857172A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/02Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/0025Measuring of vehicle parts

Abstract

The invention relates to the technical field of automobile sheet metal part machining, and discloses a length measuring device for automobile sheet metal part machining, which comprises a handle, a support column, a column body, a connecting rod, a pulley assembly, a transmission cylinder and a measuring assembly, wherein the bottom end of the handle is fixedly connected with the support column, the bottom end of the support column is fixedly connected with the column body, the bottom end of the column body is fixedly connected with the connecting rod, the inner wall of the column body is movably connected with the pulley assembly, the transmission cylinder is rotatably connected with the right side of the inner wall of the column body, and the measuring assembly is positioned above the transmission cylinder and is movably connected with; this length measurement device for automobile sheet metal part processing can carry out length measurement to various folding and crooked sheet metal parts, in addition, driven tape measure can not measure the sheet metal part that has arc cross-section, especially some large-scale automobile sheet metal part length measurements, consequently utilize the device can carry out length measurement to various shapes complicacies and surperficial curved automobile sheet metal part.

Description

Length measuring device for machining automobile sheet metal part
Technical Field
The invention relates to the technical field of automobile sheet metal part machining, in particular to a length measuring device for automobile sheet metal part machining.
Background
The sheet metal parts required by the automobile are various due to extremely complicated internal structure of the automobile, most of the sheet metal parts of the automobile are not single sheet metal parts but sheet metal parts with certain corners and folding bends, the sheet metal parts need to be cut out of the sheet metal during processing and then obtain the preset sheet metal parts through a bending process, the automobile sheet metal parts are difficult to determine the size during processing, bending and cutting due to the fact that a plurality of large sheet metal parts similar to automobile doors exist, the length measured by the existing measuring instruments such as vernier calipers is limited, the large sheet metal parts of the automobile cannot be measured, the automobile sheet metal parts mostly have the corners of bending and folding bends, the existing sheet metal measuring tools are straight rulers or T-square structures, and therefore the automobile sheet metal parts are not suitable for all sheet metals, and the accuracy of the mode for measuring the sheet metal parts by the existing measuring tapes cannot meet the existing production processing mode, therefore, the length measuring device for processing the automobile sheet metal part is provided for measuring the bent and folded sheet metal parts.
Disclosure of Invention
In order to achieve the purpose of measuring the bent and folded sheet metal parts, the invention provides the following technical scheme: the utility model provides a length measurement device is used in processing of car sheet metal component, includes handle, support column, cylinder, connecting rod, loose pulley assembly, transmission cylinder and measuring component, handle bottom and support column fixed connection, support column bottom and cylinder fixed connection, cylinder bottom and connecting rod fixed connection, cylinder inner wall and loose pulley assembly swing joint are connected, the transmission cylinder rotates with cylinder inner wall right side to be connected, the measuring component is located transmission cylinder top and cylinder inner wall swing joint.
As an optimization, the pulley assembly comprises a first spring push rod, a cross rod, a first roller, an annular groove, a second roller, a second spring push rod, a rolling ball, a sleeve block, a third spring push rod and an auxiliary round block, the top end of the first spring push rod is fixedly connected with a cylinder, the bottom end of the first spring push rod is fixedly connected with the cross rod, the outer wall of the cross rod is rotatably connected with the first roller, the outer wall of the first roller is movably connected with the annular groove, the annular groove is arranged on the right side of the inner wall of the second roller, the left side of the second roller is movably connected with the second spring push rod, the left side of the second spring push rod is fixedly connected with the rolling ball, the outer wall of the rolling ball is movably connected with the inner wall of the sleeve block, the left side of the sleeve block is fixedly connected with the auxiliary round block, the left side of the third spring push rod is fixedly connected with the right side, the outer wall of the ejector head is connected with the inner wall of the connecting rod in a sliding mode, and rolls along the edge of the automobile sheet metal part through the pulley assembly, so that the measuring assembly is driven to operate.
As an optimization, the measuring assembly comprises a transmission belt, a transmission round block, a single wheel tooth, a transmission gear, a first dial, a first pointer, a mandril, a piston, a sealing cavity, a first check valve, an air inlet pipe, a second check valve, a bow-shaped air pipe, a pneumatic telescopic rod, a graduated rod and a transmission rod, wherein the top end of the transmission belt is movably connected with the transmission round block, the right side of the transmission round block is rotatably connected with the inner wall of a cylinder, the top end of the transmission round block is fixedly connected with the single wheel tooth, the right side of the transmission gear is fixedly connected with the transmission rod, the right side of the transmission rod penetrates through the first dial and the first pointer, the left side of the first dial is fixedly connected with the cylinder, the left side of the transmission gear is rotatably connected with the mandril, the top end of the mandril is rotatably connected with the piston, the outer wall of the piston, intake pipe inner wall is close to sealed chamber and first check valve fixed connection, sealed chamber right side and bow-shaped trachea fixed connection, bow-shaped trachea inner wall is close to sealed chamber right side and second check valve fixed connection, bow-shaped trachea top and pneumatic telescopic link fixed connection, pneumatic telescopic link keeps away from bow-shaped tracheal one end and scale bar fixed connection, scale bar outer wall and cylinder inner wall sliding connection carry out length measurement to crooked and folding car sheet metal component, and measure accurately.
As optimization, the number of the support columns and the number of the connecting rods are two, the support columns and the connecting rods are symmetrically arranged relative to the vertical center line of the handle, and the stability of the whole device is improved by the support columns and the connecting rods.
Preferably, the number of the first spring push rods and the auxiliary assemblies thereof is two, and the first spring push rods and the auxiliary assemblies thereof are symmetrically arranged about the vertical center line of the second roller, so that the second roller always keeps the downward movement trend.
As optimization, the sleeve block and the rolling ball are two and are respectively arranged on the left side and the right side of the second spring push rod, and the sleeve block on the right side is fixedly connected with the second idler wheel, so that the second idler wheel can drive the auxiliary round block to rotate when moving up and down.
Preferably, the number of the second spring push rods and the auxiliary assemblies thereof is two, and the two second spring push rods and the auxiliary assemblies thereof are symmetrically arranged about a vertical center line of the second roller, so that the second roller drives the transmission cylinder to rotate when moving up and down.
Preferably, the two ejection heads and the auxiliary assemblies thereof are symmetrically arranged about the vertical center line of the column, and the upper surface and the lower surface of the sheet metal part are clamped by the two ejection heads and the auxiliary assemblies thereof.
Preferably, the bottom end of the transmission belt is movably connected with a roller, the left side of the roller is fixedly connected with the transmission cylinder, the right side of the roller is rotatably connected with the inner wall of the cylinder, the top end of the transmission round block is meshed with the transmission gear through a single gear, and the transmission cylinder drives the transmission round block to rotate together through the transmission belt when rotating.
The invention has the beneficial effects that: the second roller rolls at the edge part of the automobile sheet metal part and drives the transmission cylinder to rotate, the transmission cylinder drives the measuring component to operate and the ejector and the accessory components thereof move on the surface of the automobile sheet metal part to ensure the stable movement of the second roller, the second roller rotates for one circle, the transmission cylinder drives the transmission round block to rotate for one circle, the transmission round block drives the transmission gear to rotate for one circle, the transmission gear drives the first pointer to rotate, the piston reciprocates up and down once when the transmission gear rotates for one circle, the pneumatic telescopic rod pushes the scale rod to move for one scale, and the length of the sheet metal part is measured by reading the second roller after the edge movement of the automobile sheet metal part is finished through the numerical setting of the first pointer, the first scale rod, the second pointer and the second scale rod, this length measurement device is used in car sheet metal component processing measures sheet metal component length with traditional ruler, T square and tape measure, can carry out length measurement to various folding and crooked sheet metal components, and the error is less, in addition, driven tape measure can not measure the sheet metal component that has the arc cross-section, especially some large-scale car sheet metal component length measurement, consequently utilize the device can carry out length measurement to various shapes complicacies and surperficial curved car sheet metal components.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 3 is a left side view of the second roller of the present invention;
FIG. 4 is a schematic view of a measuring assembly according to the present invention;
FIG. 5 is an enlarged view of the structure at B in FIG. 4 according to the present invention;
FIG. 6 is an enlarged view of the structure at C in FIG. 4 of the present invention:
FIG. 7 is a schematic view of the engagement structure of the transmission round block and the transmission gear of the present invention;
FIG. 8 is a schematic view of the connection structure of the transmission gear and the piston according to the present invention.
In the figure: 100. a grip; 200. a support pillar; 300. a cylinder; 400. a connecting rod; 500. a pulley assembly; 501. a first spring push rod; 502. a cross bar; 503. a first roller; 504. an annular groove; 505. a second roller; 506. a second spring push rod; 507. rolling a ball; 508. sleeving blocks; 509. a third spring push rod; 510. an auxiliary round block; 511. ejecting the head; 600. a transmission cylinder; 700. a measurement assembly; 701. a drive belt; 702. a transmission round block; 703. a single gear tooth; 704. a transmission gear; 705. a first dial; 706. A first pointer; 707. a top rod; 708. a piston; 709. sealing the cavity; 710. a first check valve; 711. An air inlet pipe; 712. a second one-way valve; 713. an arcuate trachea; 714. a pneumatic telescopic rod; 715. a graduated rod; 716. and a transmission rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, a length measuring device for processing an automobile sheet metal part includes a handle 100, a support column 200, a cylinder 300, a connecting rod 400, a pulley assembly 500, a transmission cylinder 600 and a measuring assembly 700, wherein the bottom end of the handle 100 is fixedly connected with the support column 200, the bottom end of the support column 200 is fixedly connected with the cylinder 300, the bottom end of the cylinder 300 is fixedly connected with the connecting rod 400, the inner wall of the cylinder 300 is movably connected with the pulley assembly 500, the transmission cylinder 600 is rotatably connected with the right side of the inner wall of the cylinder 300, the measuring assembly 700 is positioned above the transmission cylinder 600 and movably connected with the inner wall of the cylinder 300, and according to fig. 1, the handle 100 drives the pulley assembly 500 to roll at the edge of the automobile sheet metal part through the support column.
Referring to fig. 1-3, the pulley assembly 500 comprises a first spring push rod 501, a cross rod 502, a first roller 503, a circular groove 504, a second roller 505, a second spring push rod 506, a ball 507, a sleeve block 508, a third spring push rod 509 and an auxiliary round block 510, wherein the top end of the first spring push rod 501 is fixedly connected with the cylinder 300, the bottom end of the first spring push rod 501 is fixedly connected with the cross rod 502, the outer wall of the cross rod 502 is rotatably connected with the first roller 503, the outer wall of the first roller 503 is movably connected with the circular groove 504, the circular groove 504 is arranged on the right side of the inner wall of the second roller 505, the left side of the second roller 505 is movably connected with the second spring push rod 506, the left side of the second spring push rod 506 is fixedly connected with the ball 507, the outer wall of 507 is movably connected with the inner wall of the sleeve block 508, the left side of the sleeve block 508 is fixedly connected with the, the right side of the third spring push rod 509 is fixedly connected with the top 511, the outer wall of the top 511 is slidably connected with the inner wall of the connecting rod 400, and according to fig. 1, the pulley assembly 500 operates, so that the top 511 positioned at the left side and the right side of the cylinder 300 respectively clamps and limits the upper surface and the lower surface of the automobile sheet metal part, the second idler wheel 505 rolls on the edge of the sheet metal part, and the second idler wheel 505 rotates to drive the measuring assembly 700 to operate through the transmission cylinder 600.
Referring to fig. 1-8, the measuring assembly 700 comprises a transmission belt 701, a transmission circular block 702, a single gear 703, a transmission gear 704, a first dial 705, a first pointer 706, a top rod 707, a piston 708, a sealing cavity 709, a first check valve 710, an air inlet pipe 711, a second check valve 712, an arc-shaped air pipe 713, a pneumatic telescopic rod 714, a graduated rod 715 and a transmission rod 716, wherein the top end of the transmission belt 701 is movably connected with the transmission circular block 702, the right side of the transmission circular block 702 is rotatably connected with the inner wall of the cylinder 300, the top end of the transmission circular block 702 is fixedly connected with the single gear 703, the right side of the transmission gear 704 is fixedly connected with the transmission rod 716, the right side of the transmission rod 716 passes through the first dial 705 and the first pointer 706 and is fixedly connected, the left side of the first dial is fixedly connected with the cylinder 300, the left side of the transmission gear 704 is, the outer wall of the piston 708 is in sliding connection with the sealed cavity 709, the left side of the sealed cavity 709 is fixedly connected with the air inlet pipe 711, the inner wall of the air inlet pipe 711 close to the sealed cavity 709 is fixedly connected with the first one-way valve 710, the right side of the sealed cavity 709 is fixedly connected with the arched air pipe 713, the inner wall of the arched air pipe 713 close to the right side of the sealed cavity 709 is fixedly connected with the second one-way valve 712, the top end of the arched air pipe 713 is fixedly connected with the pneumatic telescopic rod 714, one end of the pneumatic telescopic rod 714 far away from the arched air pipe 713 is fixedly connected with the scale rod 715, the outer wall of the scale rod 715 is in sliding connection with the inner wall of the cylinder 300, the transmission cylinder 600 rotates to drive the transmission belt 701 to operate according to the figure 1, the transmission belt 701 rotates to drive the transmission circular block 702 according to the figure 4, the transmission circular block 702 rotates by one circle according to, the right side of the transmission round block 702 is fixedly connected with a second pointer, and the outer wall of the second pointer is rotatably connected with the inner wall of the cylinder 300.
Referring to fig. 1-2, two support columns 200 and two connecting rods 400 are provided, and are symmetrically disposed about a vertical center line of the grip 100, according to fig. 1, the support columns 200 are used to increase the stability of the entire device, and according to fig. 1, the two connecting rods 400 are used to drive the top 511 and its accessory components to move on the upper and lower surfaces of the sheet metal part of the automobile, so that the top 511 is in contact with the upper and lower surfaces of the automobile.
Referring to fig. 1-2, two first spring push rods 501 and their accessories are symmetrically disposed about the vertical center line of the second roller 505, so that the second roller 505 always keeps a downward movement trend, and according to fig. 2, the first spring push rods 501 push the cross bar 502 to bring the first roller 503 into contact with the bottom end of the inner wall of the annular groove 504, so that according to fig. 1, the second roller 505 always keeps a downward movement trend, and the second roller 505 always contacts with the edge surface of the sheet metal part of the vehicle.
Referring to fig. 1-2, two sets of the sleeve block 508 and the rolling ball 507 are respectively installed on the left side and the right side of the second spring push rod 506, and the sleeve block 508 located on the right side is fixedly connected with the second roller 505, so that the second roller 505 can drive the auxiliary round block 510 to rotate while moving up and down, and according to fig. 1, the second roller 505 can drive the auxiliary round block 510 and the transmission cylinder 600 to rotate while moving up and down by the cooperation of the rolling ball 507 and the sleeve block 508 and the thrust of the second spring push rod 506.
Referring to fig. 1-3, two second spring push rods 506 and their accessories are symmetrically disposed about a vertical center line of the second roller 505, such that the second roller 505 rotates along with the driving cylinder 600 when moving up and down, and six sets of blocks 508 and their accessories are annularly arrayed about the center of the second roller 505, such that the second roller 505 rotates along with the auxiliary cylinder 510 and the driving cylinder 600 stably according to fig. 1.
Referring to fig. 1-2, two of the heads 511 and the auxiliary components thereof are symmetrically arranged about the vertical center line of the cylinder 300, the upper and lower surfaces of the sheet metal part are clamped by the two heads 511 and the auxiliary components thereof, and according to fig. 1, a ball is movably connected to a contact point of the head 511 and the sheet metal part of the automobile to prevent scratching the surface of the sheet metal part, so that the second roller 505 stably rolls on the edge of the sheet metal part of the automobile all the time.
Referring to fig. 1-8, a roller is movably connected to the bottom end of the transmission belt 701, according to fig. 1, the left side of the roller is fixedly connected to the transmission cylinder 600, the right side of the roller is rotatably connected to the inner wall of the cylinder 300, according to fig. 7, the top end of the transmission circular block 702 is engaged with the transmission gear 704 through the single gear tooth 703, when the transmission cylinder 600 rotates, the transmission circular block 702 is driven by the transmission belt 701 to rotate together, according to fig. 8, the transmission gear 704 rotates to drive the piston 708 through the push rod 707 to perform reciprocating motion, and according to fig. 5, the piston 708 slides up and down in the.
In use, referring to fig. 1-8, the handheld grip 100 drives the pulley assembly 500 to roll at the edge of the automobile sheet metal part through the supporting column 200 and the cylinder 300 to drive the measuring assembly 700 to operate, the bottom end of the second roller 505 contacts and rolls with the edge of the automobile sheet metal part, the connecting rod 400 drives the top 511 to slide on the upper surface and the lower surface of the automobile sheet metal part, the pushing force of the third spring push rod 509 enables the top 511 to be always in contact with the surface of the automobile sheet metal part, the second roller 505 drives the auxiliary round block 510 and the transmission cylinder 600 to rotate through the second spring push rod 506 and the auxiliary assemblies thereof when rolling, the first spring push rod 501 and the auxiliary assemblies thereof exert a downward force on the second roller 505 to enable the second roller to be always in contact with the edge of the automobile sheet metal part, the transmission cylinder 600 rotates to drive the transmission belt 701 to operate, the transmission round block 701 rotates to drive the transmission round block 702, the transmission circular block 702 drives the transmission gear 704 to rotate through the single gear tooth 703, and each time the transmission circular block 702 rotates for one circle, the transmission gear 704 rotates for one gear tooth, the transmission belt 701 pushes the ejector rod 707 to move, the transmission gear 704 rotates for one circle, the ejector rod 707 reciprocates up and down once, the ejector rod 707 drives the piston 708 to move, the piston 708 slides on the inner wall of the sealed cavity 709, when the piston 708 moves upwards, the piston 708 squeezes the air in the sealed cavity 709 to enter the pneumatic telescopic rod 714 through the second one-way valve 712, the pneumatic telescopic rod 714 moves rightwards, the pneumatic telescopic rod 714 drives the graduated rod 715 to move rightwards for one graduation, when the piston 708 moves downwards, negative pressure is generated in the sealed cavity 709, the external air passes through the first one-way valve 710 through the air inlet pipe 711 to enter the sealed cavity 709 to form reciprocating motion, and the first pointer 706 and the first graduated disk 705, The values of the graduated rod 715, the second pointer and the second graduated disk are set, and the second roller 505 reads the values to measure the length of the sheet metal part after the edge movement of the automobile sheet metal part is completed.
In summary, the second roller 505 rolls on the edge portion of the automobile sheet metal part to drive the transmission cylinder 600 to rotate, the transmission cylinder 600 drives the measuring component 700 to operate, the top 511 and its accessory components move on the surface of the automobile sheet metal part to ensure the stable motion of the second roller 505, the second roller 505 rotates one circle, the transmission cylinder 600 drives the transmission circular block 702 to rotate one circle, the transmission circular block 702 drives the second pointer to rotate at the same time, the transmission circular block 702 drives the transmission gear 704 to rotate one gear tooth each time one circle, the transmission gear 704 drives the first pointer 706 to rotate each circle, the piston 708 reciprocates up and down once each time the transmission gear 704 rotates one circle, the pneumatic telescopic rod 714 drives the graduated rod 715 to move one scale, and the length of the sheet metal part is measured by reading the second roller 505 after the edge of the automobile sheet metal part is moved, this length measurement device is used in car sheet metal component processing measures sheet metal component length with traditional ruler, T square and tape measure, can carry out length measurement to various folding and crooked sheet metal components, and the error is less, and in addition, driven tape measure can not measure the sheet metal component that has the arc cross-section, especially some large-scale car sheet metal component length measurement, consequently utilize the device can carry out length measurement to various shapes complicacies and surperficial curved car sheet metal components.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (9)

1. The utility model provides a length measurement device is used in processing of car sheet metal component, includes handle (100), support column (200), cylinder (300), connecting rod (400), loose pulley assembly (500), transmission cylinder (600) and measuring component (700), its characterized in that: handle (100) bottom and support column (200) fixed connection, support column (200) bottom and cylinder (300) fixed connection, cylinder (300) bottom and connecting rod (400) fixed connection, cylinder (300) inner wall and loose pulley assembly (500) swing joint are connected, transmission cylinder (600) are connected with cylinder (300) inner wall right side rotation, measuring component (700) are located transmission cylinder (600) top and cylinder (300) inner wall swing joint.
2. The length measuring device for machining the automobile sheet metal part as claimed in claim 1, wherein: the pulley assembly (500) consists of a first spring push rod (501), a cross rod (502), a first roller (503), an annular groove (504), a second roller (505), a second spring push rod (506), a rolling ball (507), a sleeve block (508), a third spring push rod (509) and an auxiliary round block (510), wherein the top end of the first spring push rod (501) is fixedly connected with the cylinder (300), the bottom end of the first spring push rod (501) is fixedly connected with the cross rod (502), the outer wall of the cross rod (502) is rotatably connected with the first roller (503), the outer wall of the first roller (503) is movably connected with the annular groove (504), the annular groove (504) is arranged on the right side of the inner wall of the second roller (505), the left side of the second roller (505) is movably connected with the second spring push rod (506), the left side of the second spring push rod (506) is fixedly connected with the rolling ball (507), spin (507) outer wall and cover piece (508) inner wall swing joint, cover piece (508) left side and supplementary circle piece (510) fixed connection, third spring push rod (509) left side and connecting rod (400) inner wall right side fixed connection, third spring push rod (509) right side and top (511) fixed connection, top (511) outer wall and connecting rod (400) inner wall sliding connection.
3. The length measuring device for machining the automobile sheet metal part as claimed in claim 1, wherein: the measuring component (700) consists of a transmission belt (701), a transmission round block (702), a single gear tooth (703), a transmission gear (704), a first dial (705), a first pointer (706), a push rod (707), a piston (708), a sealing cavity (709), a first check valve (710), an air inlet pipe (711), a second check valve (712), an arc-shaped air pipe (713), a pneumatic telescopic rod (714), a scale rod (715) and a transmission rod (716), wherein the top end of the transmission belt (701) is movably connected with the transmission round block (702), the right side of the transmission round block (702) is rotatably connected with the inner wall of the cylinder (300), the top end of the transmission round block (702) is fixedly connected with the single gear tooth (703), the right side of the transmission gear (704) is fixedly connected with the transmission rod (716), and the right side of the transmission rod (716) passes through the first dial (705) and the first pointer (706) to be fixedly, the left side of the first dial (705) is fixedly connected with the column (300), the left side of the transmission gear (704) is rotatably connected with the ejector rod (707), the top end of the ejector rod (707) is rotatably connected with the piston (708), the outer wall of the piston (708) is slidably connected with the sealed cavity (709), the left side of the sealed cavity (709) is fixedly connected with the air inlet pipe (711), the inner wall of the air inlet pipe (711) is close to the sealed cavity (709) and is fixedly connected with the first one-way valve (710), the right side of the sealed cavity (709) is fixedly connected with the arched air pipe (713), the right side of the inner wall of the arched air pipe (713) close to the sealed cavity (709) is fixedly connected with the second one-way valve (712), the top end of the arched air pipe (713) is fixedly connected with the pneumatic telescopic rod (714), and one end of the pneumatic telescopic rod (714) far away from the arched air pipe (713, the outer wall of the scale rod (715) is in sliding connection with the inner wall of the column body (300).
4. The length measuring device for machining the automobile sheet metal part as claimed in claim 1, wherein: the two support columns (200) and the two connecting rods (400) are symmetrically arranged relative to the vertical center line of the grip (100).
5. The length measuring device for machining the automobile sheet metal part as claimed in claim 2, wherein: the number of the first spring push rods (501) and the auxiliary components thereof is two, and the first spring push rods and the auxiliary components are symmetrically arranged about the vertical center line of the second roller (505).
6. The length measuring device for machining the automobile sheet metal part as claimed in claim 2, wherein: the two sleeve blocks (508) and the two rolling balls (507) are respectively arranged on the left side and the right side of the second spring push rod (506), and the sleeve block (508) positioned on the right side is fixedly connected with the second roller (505).
7. The length measuring device for machining the automobile sheet metal part as claimed in claim 2, wherein: the number of the second spring push rods (506) and the auxiliary components thereof is two, and the two spring push rods and the auxiliary components are symmetrically arranged about the vertical center line of the second roller (505).
8. The length measuring device for machining the automobile sheet metal part as claimed in claim 4, wherein: the two jacks (511) and the accessory components thereof are symmetrically arranged about the vertical center line of the column body (300).
9. The length measuring device for machining the automobile sheet metal part as claimed in claim 3, wherein: the bottom end of the transmission belt (701) is movably connected with a roller, the left side of the roller is fixedly connected with the transmission cylinder (600), the right side of the roller is rotatably connected with the inner wall of the cylinder (300), and the top end of the transmission round block (702) is meshed with the transmission gear (704) through a single gear tooth (703).
CN202011597244.4A 2020-12-28 2020-12-28 Length measuring device for machining automobile sheet metal part Pending CN112857172A (en)

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CN202011597244.4A CN112857172A (en) 2020-12-28 2020-12-28 Length measuring device for machining automobile sheet metal part

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CN202011597244.4A CN112857172A (en) 2020-12-28 2020-12-28 Length measuring device for machining automobile sheet metal part

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CN114688944A (en) * 2022-05-24 2022-07-01 中国长江三峡集团有限公司 Self-adaptive caulking monitoring device and caulking resetting method

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CN210388451U (en) * 2019-08-20 2020-04-24 重庆理工大学 Self-alignment positioning device for marine diesel engine box parts
CN111238336A (en) * 2020-01-15 2020-06-05 东风汽车集团有限公司 Measuring instrument for length of automobile sheet metal part

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Publication number Priority date Publication date Assignee Title
CN210388451U (en) * 2019-08-20 2020-04-24 重庆理工大学 Self-alignment positioning device for marine diesel engine box parts
CN111238336A (en) * 2020-01-15 2020-06-05 东风汽车集团有限公司 Measuring instrument for length of automobile sheet metal part

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114688944A (en) * 2022-05-24 2022-07-01 中国长江三峡集团有限公司 Self-adaptive caulking monitoring device and caulking resetting method
CN114688944B (en) * 2022-05-24 2022-07-29 中国长江三峡集团有限公司 Self-adaptive caulking monitoring device and caulking resetting method

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