阅读说明：本技术 一种新能源汽车圆柱形零件打磨装置 (Cylindrical part grinding device of new energy automobile ) 是由 何化光 于 2021-08-13 设计创作，主要内容包括：本发明公开了一种新能源汽车圆柱形零件打磨装置,包括箱体,所述箱体左侧下端固定连接有电机保护箱,所述箱体正面铰接有单开门,本发明通过设置夹紧机构,夹紧机构在转动时会产生离心力,滑块通过离心力会被甩出同时会带动固定杆向外部移动,移动的同时会挤压到弹簧二,弧形顶板会因为固定杆有向外部伸出的力,从而使弧形顶板会一直对圆柱形零件的内壁支撑从而达到内壁夹紧的效果,对圆柱形零件的内部进行夹紧,不会出现在外部夹紧从而导致表面有部分无法进行打磨,还可以使圆柱形零件进行转动,一定程度上在增加了打磨的效果,通过设置固定卡块,可限制圆柱形零件右侧所移动的距离,避免出现过量伸出的情况。(The invention discloses a new energy automobile cylindrical part polishing device, which comprises a box body, wherein the lower end of the left side of the box body is fixedly connected with a motor protection box, the front surface of the box body is hinged with a single-opening door, a clamping mechanism is arranged, the clamping mechanism can generate centrifugal force when rotating, a sliding block can be thrown out by the centrifugal force and can drive a fixed rod to move outwards, a spring II can be extruded when moving, an arc-shaped top plate can always support the inner wall of a cylindrical part by the force of the fixed rod extending outwards, so that the effect of clamping the inner wall is achieved, the inner part of the cylindrical part is clamped, the phenomenon that part of the surface cannot be polished due to external clamping is avoided, the cylindrical part can also be rotated, the polishing effect is increased to a certain extent, and the moving distance of the right side of the cylindrical part can be limited by arranging a fixed clamping block, avoiding the occurrence of excessive protrusion.)

1. The utility model provides a cylindrical part grinding device of new energy automobile, includes box (1), its characterized in that: the utility model discloses a box, including box (1), box (1) left side lower extreme fixedly connected with motor protection case (2), box (1) openly articulates there is the list to open the door, box (1) inner wall bottom is provided with supporting mechanism (11), supporting mechanism (11) top is provided with cylindrical part (12), box (1) inner wall right side lower extreme fixedly connected with fixed block one (13), fixed block one (13) left side fixedly connected with fixed block two (14), box (1) inner wall top axis department fixedly connected with fixed block three (15), fixed block three (15) inside is provided with the spout, spout inside is provided with pivot (16).

2. The cylindrical part grinding device of the new energy automobile as claimed in claim 1, characterized in that: the supporting mechanism (11) comprises a base (a1), an arc-shaped block (a2), balls (a3), a scraping block (a4), connecting blocks (a5) and a scraper (a6) in the interior, the arc-shaped block (a2) is fixedly connected to the top of the base (a1), the balls (a3) are arranged on the inner surface of the arc-shaped block (a2) in an annular mode, the number of the balls (a3) is six, the scraping blocks (a4) are fixedly connected to one ends, close to the tops of the arc-shaped block (a2), of the connecting blocks (a5) are fixedly connected to the inner surface of the arc-shaped block (a2) in an annular mode, the number of the connecting blocks (a5) is four, and the scrapers (a6) are fixedly connected to the tops of the four connecting blocks (a 5).

3. The cylindrical part grinding device of the new energy automobile as claimed in claim 1, characterized in that: fixed block (13) top threaded connection has threaded rod (131), threaded rod (131) bottom fixed mounting has push pedal (132), fixed block (13) inner wall left side lower extreme fixedly connected with trachea (133), trachea (133) left side is run through fixed block two (14) right side lower extreme, the equal fixedly connected with spring one (141) of lower extreme on fixed block two (14) inner wall right side, two spring one (141) left side fixedly connected with cardboard (142), square piece (143) of cardboard (142) left side fixedly connected with, square piece (143) left side is rotated and is connected with bull stick (144), bull stick (144) left side is rotated and is connected with circular fixed plate (145), circular fixed plate (145) surface and cylindrical part (12) inner wall right-hand member contaction.

4. The cylindrical part grinding device of the new energy automobile as claimed in claim 1, characterized in that: the rotating shaft (16) comprises two connecting blocks (161), a first fixing plate (162), two hydraulic cylinders (163), two rectangular blocks (164), two motors (165), two rotating rods (166), two limiting blocks (167) and two fan blades (168) inside, the rotating shaft (16) is provided with two numbers, the two connecting blocks (161) are sleeved on the front and the back of the two rotating shafts (16), the first fixing plate (162) is fixedly connected to the bottoms of the four connecting blocks (161), the hydraulic cylinders (163) are fixedly installed at the bottoms of the first fixing plate (162), the rectangular blocks (164) are fixedly connected to the left side and the right side of the hydraulic cylinders (163), the second motors (165) are fixedly installed at the tops of the inner walls of the two rectangular blocks (164), the second rotating rods (166) are rotatably connected to the bottoms of the two motors (165), the limiting blocks (167) are fixedly connected to the left side and the right side middle shafts of the inner walls of the two rectangular blocks (164), the flabellum (168) all rotate to be connected in two dwang two (166) bottoms, two the opening has all been seted up to rectangular piece (164) bottom.

5. The cylindrical part grinding device of the new energy automobile as claimed in claim 1, characterized in that: motor guard box (2) are inside to include motor (21), dwang (22), fixed fixture block (23) and chucking mechanism (24), motor (21) fixed mounting is inside motor guard box (2), dwang (22) are rotated and are connected on motor (21) right side, motor guard box (2) inner wall right side and box (1) left side are run through and extend to inside on dwang (22) right side, fixed fixture block (23) are rotated and are connected on dwang (22) right side, chucking mechanism (24) set up on fixed fixture block (23) right side.

6. The cylindrical part grinding device of the new energy automobile as claimed in claim 5, characterized in that: the clamping mechanism (24) comprises a circular block (241), a sliding block (242), a fixed rod (243), a fixed plate II (244), a spring II (245) and an arc-shaped top block (246) inside, the upper end, the lower end, the left end and the right end of the circular block (241) are respectively provided with a groove, the sliding blocks (242) are respectively connected in the four grooves in a sliding way, the fixing rods (243) are fixedly connected to the tops of the four sliding blocks (242), the second fixing plates (244) are arranged right above the four sliding blocks (242), the four second fixing plates (244) are fixedly connected to the insides of the four grooves, the tops of the four fixing rods (243) penetrate through the second fixing plates (244) and extend to the outside, the springs II (245) are sleeved on the outer surfaces of the four fixing rods (234), the arc-shaped top blocks (246) are fixedly connected to the tops of the four fixing rods (234), and the outer surfaces of the arc-shaped top blocks (246) are in contact with the left end of the inner wall of the cylindrical part (12).

7. The cylindrical part grinding device of the new energy automobile as claimed in claim 6, characterized in that: the bottoms of the four second springs (245) are fixedly connected with the tops of the four sliding blocks (242), and the tops of the four second springs (245) are fixedly connected with the bottoms of the four second fixed plates (244).

Technical Field

The invention relates to the technical field of xxx, in particular to a polishing device for a cylindrical part of a new energy automobile.

Background

The new energy automobile adopts unconventional automobile fuel as a power source (or adopts conventional automobile fuel and a novel vehicle-mounted power device), integrates advanced technologies in the aspects of power control and driving of the automobile, and forms an automobile with advanced technical principle, new technology and new structure; the new energy automobile comprises a pure electric automobile, an extended range electric automobile, a hybrid electric automobile, a fuel cell electric automobile, a hydrogen engine automobile and the like;

however, when the cylindrical part is polished, the cylindrical part is not clamped well, and the cylindrical part is rotated after clamping, so that the polishing amount is not easily controlled during polishing, excessive polishing is extremely easy to occur, the cylindrical part cannot be used, unnecessary waste is caused, and therefore the polishing device for the cylindrical part of the new energy automobile is provided.

Disclosure of Invention

The invention aims to provide a polishing device for a cylindrical part of a new energy automobile, and aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a cylindrical part grinding device of new energy automobile, the power distribution box comprises a box body, box left side lower extreme fixedly connected with motor protection case, the box openly articulates there is single the door that opens, the box inner wall bottom is provided with supporting mechanism, the supporting mechanism top is provided with cylindrical part, box inner wall right side lower extreme fixedly connected with fixed block one, fixed block one left side fixedly connected with fixed block two, box inner wall top axis department fixedly connected with fixed block three, three inside spouts that are provided with of fixed block, spout inside is provided with the pivot, single positive right side fixedly connected with handle that opens the door.

Preferably, the supporting mechanism is inside to include base, arc piece, ball, scrape piece, connecting block one and scraper blade, arc piece fixed connection is at the base top, the equal annular setting of ball is at arc piece internal surface, ball quantity is six, scrape the equal fixed connection of piece and be close to the one end each other at arc piece top, the equal annular fixed connection of connecting block is at arc piece internal surface, connecting block quantity is four, and the equal fixed connection of scraper blade is at four connecting block tops, and the length of scraping piece and scraper blade is the same with arc piece length.

Preferably, a fixed block top threaded connection has the threaded rod, threaded rod bottom fixed mounting has the push pedal, a fixed block inner wall left side lower extreme fixedly connected with trachea, two right side lower extremes of fixed block are run through in the trachea left side, the equal fixedly connected with spring one of lower extreme on the two inner wall right sides of fixed block, two a spring left side fixedly connected with cardboard, the square piece of cardboard left side fixedly connected with, square piece left side rotation is connected with the bull stick, the bull stick left side is rotated and is connected with circular fixed plate, circular fixed plate surface and cylindrical part inner wall right-hand member contact each other, and the size of push pedal 132 is the same with the inside size of fixed block 13.

Preferably, the rotating shaft internally comprises two connecting blocks, a first fixing plate, a hydraulic cylinder, rectangular blocks, a second motor, a second rotating rod, limiting blocks and fan blades, the number of the rotating shafts is two, the second connecting blocks are respectively sleeved on the front side and the back side of the two rotating shafts, the first fixing plate is respectively and fixedly connected with the bottoms of the second four connecting blocks, the hydraulic cylinder is fixedly arranged at the bottom of the first fixing plate, the rectangular blocks are respectively and fixedly connected with the left side and the right side of the hydraulic cylinder, the second motor is respectively and fixedly arranged at the tops of the inner walls of the two rectangular blocks, the second rotating rod is respectively and rotatably connected with the bottoms of the two motors, the limiting blocks are respectively and fixedly connected with the central shafts at the left side and the right side of the inner walls of the two rectangular blocks, the fan blades are respectively and rotatably connected with the bottoms of the two rotating rods, openings are respectively arranged at the bottoms of the two rectangular blocks, and one side, which is close to the four limiting blocks, is provided with a radian, the radian is matched with the rotating rod.

Preferably, motor protection incasement portion includes motor one, dwang one, fixed fixture block and chucking mechanism, a motor fixed mounting is inside the motor protection incasement portion, dwang one rotates to be connected on a motor right side, a dwang right side runs through motor protection incasement wall right side and box left side and extends to inside, fixed fixture block rotates to be connected on a dwang right side, chucking mechanism sets up on fixed fixture block right side.

Preferably, inside circular block, slider, dead lever, two fixed plates, two springs and the arc kicking block of including of chucking mechanism, four ends are all seted up flutedly about the circular block, the equal sliding connection of slider is inside four recesses, the equal fixed connection of dead lever is at four slider tops, two fixed plates all set up directly over four sliders, four the equal fixed connection of two fixed plates is inside four recesses, four the dead lever top all runs through two fixed plates and extends to the outside, two springs all cup joint at four dead lever surfaces, the equal fixed connection of arc kicking block is at four dead lever tops, four the arc kicking block surface all mutually contacts with cylindrical part inner wall left end, and four sliders are the same with two sizes of four fixed plates.

Preferably, the bottoms of the four second springs are fixedly connected with the tops of the four sliding blocks, and the tops of the four second springs are fixedly connected with the bottoms of the four second fixing plates.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the clamping mechanism is arranged, centrifugal force can be generated when the clamping mechanism rotates, the slide block can be thrown out through the centrifugal force and can drive the fixing rod to move outwards, the spring II can be extruded when the slide block moves, the arc-shaped top plate can have force extending outwards due to the fixing rod, so that the arc-shaped top plate can always support the inner wall of the cylindrical part to achieve the effect of clamping the inner wall, the inner part of the cylindrical part is clamped, partial surface cannot be polished due to external clamping, the cylindrical part can also rotate, the polishing effect is increased to a certain extent, the moving distance of the right side of the cylindrical part can be limited by arranging the fixing fixture block, and the condition of excessive extension is avoided.

2. According to the invention, through the arrangement of the supporting mechanism, when the cylindrical part is supported, burrs are generated on the surface of the cylindrical part during polishing along with the polishing rotation of the cylindrical part, the burrs on the surface of the cylindrical part can be preliminarily scraped through the scraping block when the cylindrical part rotates to the bottom, the burrs on the surface can be deeply scraped through the scraping plate when the cylindrical part moves downwards, the polishing efficiency can be increased to a certain extent, and through the arrangement of the balls, the rotation efficiency of the cylindrical part can not be reduced while the cylindrical part is supported.

3. According to the invention, the rotating shaft is arranged, the effect of moving the hydraulic cylinder can be achieved, after the rotating shaft is moved to a proper position, the hydraulic cylinder is started to push downwards, the bottom polishing block and the cylindrical part are in mutual contact so as to be polished, the hydraulic cylinder can be pushed to move during polishing, so that any position on the surface of the cylindrical part of the polishing knife of the polishing block can be polished, the fan blade is driven to rotate by the rotating rod II when the motor II is started, the effect of blowing off dust generated during polishing can be achieved, and workers can clearly see the fineness of the surface of the cylindrical part.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the case of the present invention;

FIG. 4 is a schematic view of the internal structure of the supporting mechanism of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 3;

FIG. 3 is a schematic view showing the internal structure of a cylindrical part according to the present invention;

FIG. 6 is a schematic view of the internal structure of the chucking mechanism of the present invention;

fig. 7 is a schematic diagram of the internal structure of the rectangular block of the present invention.

In the figure: the device comprises a box body 1, a supporting mechanism 11, a base a1, an arc-shaped block a2, a ball a3, a scraping block a4, a first connecting block a5, a scraping plate a6, a cylindrical part 12, a first fixing block 13, a threaded rod 131, a push plate 132, an air pipe 133, a second fixing block 14, a first spring 141, a clamping plate 142, a square block 143, a rotating rod 144, a circular fixing plate 145, a third fixing block 15, a rotating shaft 16, a second connecting block 161, a first fixing plate 162, a hydraulic cylinder 163, a rectangular block 164, a second motor 165, a rotating rod 166, a limiting block 167, a fan blade 168, a motor protection box 2, a first motor 21, a first rotating rod 22, a fixing clamping block 23, a clamping mechanism 24, a circular block 241, a sliding block 242, a fixing rod 243, a second fixing plate 244, a second spring 245 and an arc-shaped top block 246.

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. 1-7, the present invention provides a technical solution: the utility model provides a cylindrical part grinding device of new energy automobile, the power distribution box comprises a box body 1, 1 left side lower extreme fixedly connected with motor protection case 2 of box, 1 openly articulated of box has the single-action door, 1 inner wall bottom of box is provided with supporting mechanism 11, 11 tops of supporting mechanism are provided with cylindrical part 12, 1 inner wall right side lower extreme fixedly connected with fixed block 13 of box, fixed block 13 left side fixedly connected with fixed block two 14, 1 inner wall top axis department fixedly connected with fixed block three 15 of box, three 15 inside spouts that are provided with of fixed block, spout inside is provided with pivot 16.

The supporting mechanism 11 internally comprises a base a1, an arc block a2, balls a3, a scraping block a4, a first connecting block a5 and a scraping plate a6, the arc block a2 is fixedly connected to the top of the base a1, the balls a3 are all annularly arranged on the inner surface of an arc block a2, the balls a3 are six in number, through the arrangement of the balls a3, the rotating efficiency of the cylindrical part 12 is not reduced when the cylindrical part 12 is supported, the scraping blocks a4 are all fixedly connected to one ends, close to the top of the arc block a2, the first connecting blocks a5 are all annularly and fixedly connected to the inner surface of the arc block a2, the connecting blocks a5 are four in number, the scraping plates a6 are all fixedly connected to the tops of four first connecting blocks a5, through the arrangement of the supporting mechanism 11, when the cylindrical part 12 is supported, the cylindrical part 12 rotates along with the grinding of the cylindrical part 12, burrs are generated on the surface when the surface is rotated to the bottom, the burrs 4 on the surface of the cylindrical part 12 are primarily scraped through the scraping block a4 when the burrs generated on the surface when the surface is rotated to the bottom, the efficiency of grinding can be increased to some extent by scraping the burrs of the surface deeply by the scraper a6 when the cylindrical part 12 is moving downward.

Threaded connection has threaded rod 131 at 13 tops of fixed block, threaded rod 131 bottom fixed mounting has push pedal 132, fixed block 13 inner wall left side lower extreme fixedly connected with trachea 133, trachea 133 left side runs through two 14 right side lower extremes of fixed block, the equal fixedly connected with spring 141 of lower extreme on two 14 inner wall right sides of fixed block, two spring 141 left side fixedly connected with cardboard 142, cardboard 142 left side fixedly connected with square 143, square 143 left side is rotated and is connected with bull stick 144, bull stick 144 left side is rotated and is connected with circular fixed plate 145, circular fixed plate 145 surface and the 12 inner wall right-hand members of cylindrical part contact each other.

The rotating shaft 16 comprises two connecting blocks 161, a first fixing plate 162, a hydraulic cylinder 163, rectangular blocks 164, a second motor 165, a second rotating rod 166, a limiting block 167 and fan blades 168, the number of the rotating shafts 16 is two, the two connecting blocks 161 are sleeved on the front surface and the back surface of the two rotating shafts 16, the first fixing plate 162 is fixedly connected to the bottoms of the four second connecting blocks 161, the hydraulic cylinder 163 is fixedly arranged at the bottom of the first fixing plate 162, the rectangular blocks 164 are fixedly connected to the left side and the right side of the hydraulic cylinder 163, the second motor 165 is fixedly arranged at the top of the inner walls of the two rectangular blocks 164, the two rotating rods 166 are rotatably connected to the bottoms of the two second motor 165, the limiting block 167 is fixedly connected to the center shaft of the left side and the right side of the inner walls of the two rectangular blocks 164, the fan blades 168 are rotatably connected to the bottoms of the two second rotating rods 166, openings are formed at the bottoms of the two rectangular blocks 164, and the rotating shafts 16 can move the hydraulic cylinder 163 by arranging the rotating shafts 16, after moving suitable position, pneumatic cylinder 163 starts to promote downwards, thereby make the sanding block of bottom and cylindrical part 12 contact each other and polish, can promote pneumatic cylinder 163 during polishing and remove to can make sanding block polish any position on the sword cylindrical part 12 surface, the two 164 starts to drive flabellum 168 through two 166 dwang drive flabellums of motor and rotate, can reach the effect that blows off the dust that produces when polishing, make the staff can clearly see the fineness on cylindrical part 12 surface.

Inside motor 21 that includes of motor guard box 2, dwang 22, fixed fixture block 23 and chucking mechanism 24, motor 21 fixed mounting is inside motor guard box 2, dwang 22 rotates to be connected on motor 21 right side, dwang 22 right side runs through motor guard box 2 inner wall right side and 1 left side of box and extends to inside, fixed fixture block 23 rotates to be connected in dwang 22 right side, through setting up fixed fixture block 23, can restrict the distance that cylindrical part 12 right side removed, avoid appearing the condition of excessive stretching out, chucking mechanism 24 sets up on fixed fixture block 23 right side.

The clamping mechanism 24 comprises a circular block 241, a sliding block 242, fixing rods 243, two fixing plates 244, two springs 245 and an arc-shaped top block 246, the upper end, the lower end, the left end and the right end of the circular block 241 are provided with grooves, the sliding blocks 242 are connected inside the four grooves in a sliding mode, the fixing rods 243 are fixedly connected to the tops of the four sliding blocks 242, the two fixing plates 244 are arranged right above the four sliding blocks 242, the two fixing plates 244 are fixedly connected inside the four grooves, the tops of the four fixing rods 243 penetrate through the two fixing plates 244 and extend to the outside, the two springs 245 are sleeved on the outer surfaces of the four fixing rods 234, the arc-shaped top block 246 is fixedly connected to the tops of the four fixing rods 234, the outer surfaces of the four arc-shaped top blocks 246 are in contact with the left end of the inner wall of the cylindrical part 12, the clamping mechanism 24 is arranged, centrifugal force can be generated when the clamping mechanism 24 rotates, the sliding blocks 242 can be thrown out through the centrifugal force, and can drive the fixing rods 243 to move to the outside, the second spring 245 can be extruded when the cylindrical part 12 moves, the arc top plate 246 can have force extending outwards due to the fixing rod 243, so that the arc top plate 246 can always support the inner wall of the cylindrical part 12 to achieve the effect that the inner wall is clamped tightly, the inner part of the cylindrical part 12 is clamped tightly, the phenomenon that the part of the surface cannot be polished due to external clamping is avoided, the cylindrical part 12 can also be rotated, and the polishing effect is increased to a certain extent.

The bottoms of the four second springs 245 are fixedly connected with the tops of the four sliding blocks 242, and the tops of the four second springs 245 are fixedly connected with the bottoms of the four second fixed plates 244.

The working principle is as follows: when the polishing device for the cylindrical parts of the new energy automobile is used, the cylindrical parts 12 to be polished are firstly sleeved on the clamping mechanism 24 after the single-opening door is opened, the arc-shaped top plate 246 is in mutual contact with the left end of the inner wall of the cylindrical parts 12, the bottom of the supporting mechanism 11 is placed, the threaded rod 131 is rotated through the pull ring, the threaded rod 131 moves downwards, the push plate 131 extrudes air in the first fixing block 13, the extruded air flows into the second fixing block 14 through the air pipe 133, the clamping plate 142 is pushed to move outwards as the air in the second fixing block 14 is increased, the first spring 141 is pulled when the clamping plate 142 moves outwards, the circular fixing plate 145 extends into the cylindrical parts 12 due to the movement of the clamping plate 142 and is in mutual contact with the right end of the inner wall of the cylindrical parts, when the threaded rod 131 moves upwards and no air pressure exists in the second fixing block 14, the first spring 141 withdraws the extended circular fixing plate 145, at this time, the first motor 21 is started and drives the clamping mechanism 24 to rotate through the first rotating rod 22, the clamping mechanism 24 generates centrifugal force when rotating, the sliding block 242 is thrown out through the centrifugal force and drives the fixing rod 243 to move outwards, the second spring 245 is extruded when moving, the arc top plate 246 has force extending outwards because of the fixing rod 243, so that the arc top plate 246 can always support the inner wall of the cylindrical part 12 to achieve the effect of clamping the inner wall and drive the cylindrical part 12 to rotate, the circular fixing plate 145 also rotates, at this time, the hydraulic cylinder 163 can be moved through the rotating shaft 16, after moving to a proper position, the hydraulic cylinder 163 is started to push downwards, so that the bottom grinding block and the cylindrical part 12 are in contact with each other to grind, and the hydraulic cylinder 163 can be pushed to move during grinding, thereby can make the cylindrical part 12 of sanding block sword of polishing any position on the surface, two 164 starts to drive flabellum 168 through two 166 of dwang and rotates, can reach the effect that the dust that produces when will polishing blows away, along with cylindrical part 12 grinds the rotation, the surface can produce the burr when polishing, can carry out preliminary striking off to the burr on cylindrical part 12 surface through scraping piece a4 when rotating the bottom, can carry out the striking off of degree of depth through scraper blade a6 when cylindrical part 12 is removing downwards to the burr on surface, can increase the efficiency of polishing to a certain extent.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.