External cylindrical grinding device for automobile parts

Abstract

The present invention relates to the field of automobile manufacturing technology, and discloses an external cylindrical grinding device for automobile accessories, including a working box, a top groove is provided on the top of the working box, a sliding groove is provided on the bottom of the inner wall of the working box, and a frame is fixedly connected to one end of the working box. It also includes: a stretching assembly, including a stretching film fixedly connected to the bottom of the inner wall of the telescopic block, a pulling rope is fixedly connected to both sides of the stretching film, a compression plate is fixedly connected to the end of the pulling rope away from the stretching film, and the two ends of the compression plate are fixedly connected to the bottom slot of the telescopic block, and a grinding block is slidably connected in the bottom slot of the compression plate. By providing a stretching assembly, when the surface of the exhaust pipe is ground to a thinner state, by reducing the rotation speed of the grinding device on the surface of the exhaust pipe, the contact surface of the grinding block on the surface of the exhaust pipe can also be reduced to reduce friction, thereby preventing the grinding force of the grinding block on the surface of the exhaust pipe from being too large to cause cutting holes on the surface of the exhaust pipe.

Description

Technical Field

[0001] The invention relates to the technical field of automobile manufacturing, in particular to an external cylindrical grinding device for automobile accessories. Background Art

[0002] The external cylindrical grinding device for automobile parts belongs to the field of mechanical processing and automobile manufacturing. In the field of mechanical processing, it focuses on achieving high-precision processing of the external cylindrical surface of automobile parts through grinding technology. Its working principle is usually: fix the automobile parts to be processed on the fixture, and then grind the external cylindrical surface of the parts with a rotating grinding wheel, and at the same time use coolant to reduce the grinding temperature to prevent the parts from overheating and deformation.

[0003] The patent application with application number CN201510179556.6 discloses an external cylindrical grinding device for automotive accessories, including a vibration plate for vibrating and conveying workpieces, a pair of grinding wheels for performing external cylindrical processing on a conduit conveyed by the vibration plate, a material guide channel arranged between the vibration plate and the grinding wheel, a spray head for providing a turning fluid when the grinding wheel processes the conduit, and an inclined discharge channel for conveying out the conduit after the external cylindrical processing by the grinding wheel.

[0004] However, the patent also has the following shortcomings, that is, when using the external cylindrical grinding device to grind automobile accessories such as automobile exhaust pipes, the wall of the required automobile exhaust pipe needs to be ground very thin, and the current external cylindrical grinding device is easy to grind out holes on the surface of the exhaust pipe if the force is not well controlled when grinding the surface of the exhaust pipe. In view of this situation, a special external cylindrical grinding device for automobile accessories is proposed. Summary of the invention

[0005] The object of the present invention is to provide a cylindrical grinding device for automobile accessories to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an external cylindrical grinding device for automobile parts, comprising a working box, a top groove is provided on the top of the working box, a sliding groove is provided on the bottom of the inner wall of the working box, a frame is fixedly connected to one end of the working box, a pull distance component is provided on the inner wall of the top groove, a pressure mechanism is provided on the surface of the frame, and further comprising:

[0007] The rotating mechanism includes a connecting ring slidably connected to the inner walls of the sliding groove on both sides through a slider, a sliding bar is fixedly connected to the surface of the connecting ring, a telescopic block is slidably connected to the surface of the sliding bar, a pushing component is provided on the inner wall of the telescopic block, and a stretching component is provided at the bottom of the telescopic block, and the telescopic block rotates on the surface of the sliding bar.

[0008] The pushing component includes a pushing ring slidably connected to the inner wall of the telescopic block through a slider, connecting blocks fixedly connected on both sides of the inner wall of the pushing ring, a sliding rod fixedly connected to the inner wall of the connecting block, a telescopic cavity fixedly connected to the surface of the sliding rod, a connecting rod fixedly connected to the surface of the connecting block, a telescopic belt sleeved on the surface of the connecting rod, an end of the telescopic belt away from the connecting rod is slidably connected to the inner wall of the telescopic cavity, the inner wall of the sliding rod is slidably connected to the pushing block through a slider, an end of the telescopic belt away from the connecting rod is fixedly connected to the surface of the pushing block, and the pushing ring inside the telescopic block will slide on the inner wall of the telescopic block due to rotational inertia.

[0009] The stretching assembly includes a stretching membrane fixedly connected to the bottom of the inner wall of the telescopic block, pulling ropes fixedly connected to both sides of the stretching membrane, a compression plate fixedly connected to one end of the pulling rope away from the stretching membrane, two ends of the compression plate fixedly connected to the bottom slot of the telescopic block, a grinding block slidably connected in the bottom slot of the compression plate, and the pulling ropes on both sides push the grinding block after they are extended outward into the compression plate.

[0010] According to the above technical solution, the tension assembly includes a tension plate, which is fixedly connected to the inner wall of the top groove, a contact ring is slidably connected in the bottom groove hole of the tension plate, a sliding block is slidably connected in the top groove hole of the tension plate, a connecting tube is fixedly connected to the top of the sliding block, a stretching ring is fixedly connected to the left side of the connecting tube, and the end of the stretching ring away from the connecting tube is fixedly connected to the right side of the frame, and the connecting tube will squeeze the stretching ring.

[0011] According to the above technical solution, the pressure mechanism includes a telescopic column, one end of the telescopic column is fixedly connected to the left side of the frame, the end of the telescopic column away from the frame is fixedly connected to a blanking plate, the right side of the blanking plate is fixedly connected to a telescopic rod, the end of the telescopic rod away from the blanking plate is slidably connected to a telescopic disk, the inner wall of the telescopic disk is provided with a contact component, and when the telescopic block rotates on the surface of the exhaust pipe, it will drive the corner plate to slide on the inner wall of the telescopic disk

[0012] According to the above technical solution, the pressure mechanism also includes a cooling pipe, which is fixedly connected to the bottom of the inner wall of the blanking plate, and a blanking rod is fixedly connected to the top of the cooling pipe. One end of the blanking rod away from the cooling pipe is fixedly connected to the top of the inner wall of the blanking plate. A pressure ring is slidably connected to the surface groove of the blanking rod through a slider, and a compression column is fixedly connected to the surface of the pressure ring. One end of the compression column penetrates the surface of the blanking plate. When the interior of the cooling pipe is squeezed by multiple pressure rings, the internal coolant will be transmitted into the interior of the telescopic disk through the telescopic rod.

[0013] According to the above technical solution, the contact component includes an angle plate, which is fixedly connected to the bottom of the inner wall of the telescopic disk, and telescopic bags are fixedly connected to both sides of the inner wall of the angle plate, and a telescopic tube is fixedly connected to the top of the angle plate, and a slide plate is fixedly connected to both sides of the telescopic tube, and a moving block is slidably connected to the top slot of the slide plate, and a rolling wheel is rotatably connected to the surface of the moving block via a rotating shaft, and the rolling wheel contacts the inner wall of the slide plate, and a cooling bag is fixedly connected to the bottom of the inner wall of the slide plate, and the cooling bag will generate pressure on the coolant inside the telescopic bag due to the contact with the tube wall.

[0014] According to the above technical solution, the number of the sliding plates is set to two, and the two sliding plates are symmetrically installed on both sides of the telescopic tube with the center line of the angle plate as the symmetry axis, and the coolant inside the telescopic bag is sprayed out from the inside of the cooling bag.

[0015] According to the above technical solution, the number of the pulling ropes is set to two, and the two pulling ropes are symmetrically installed on both sides of the stretching film with the center line of the stretching film as the symmetry axis. The grinding block is pushed outward by the pulling rope to grind the surface of the exhaust pipe.

[0016] Compared with the prior art, the present invention provides a cylindrical grinding device for automobile parts, which has the following features:

[0017] Beneficial effects:

[0018] 1. The present invention is provided with a stretching component, and the compressed gas transported into the pulling rope by the stretching film to the outside will disappear, so that the pulling rope will expand and contract inward, thereby driving the grinding block to expand and contract inward into the compression plate. By setting this component, when the surface of the exhaust pipe is ground to a thinner state, the rotation speed of the grinding device on the surface of the exhaust pipe can be reduced, and the contact area of ​​the grinding block on the surface of the exhaust pipe can be reduced to reduce friction, thereby preventing the grinding force of the grinding block on the surface of the exhaust pipe from being too large to cause cutting holes on the surface of the exhaust pipe.

[0019] 2. The present invention is provided with a pulling distance component. When multiple pressure rings are extended and stacked downward, the pressure exerted on the cooling pipe by the bottom of the feed rod will be greater, so that the amount of coolant discharged from the cooling pipe to the outside is sufficient. By setting this component, a sufficient amount of coolant can be defined according to different exhaust pipe models. When the amount of coolant required for grinding the exhaust pipe surface is insufficient, the high temperature heat on the exhaust pipe surface will penetrate the thin pipe wall due to insufficient coolant during grinding.

[0020] 3. The present invention is provided with a contact component, and the coolant inside the telescopic bag is sprayed out from the inside of the cooling bag, and the inner wall of the exhaust pipe is cooled by the sprayed coolant. By setting this component, when the wall of the exhaust pipe is ground to a thinner state, the inner wall of the exhaust pipe is cooled by the coolant sprayed out in time, so as to avoid the high temperature heat generated by the grinding device grinding the outside of the exhaust pipe from piercing the pipe wall.

[0021] 4. The present invention is provided with a pressure mechanism and a pushing assembly. When the connecting rod is pulled, the pushing ring fixed to the connecting block will be driven to rotate faster on the inner wall of the telescopic block, thereby accelerating the pushing of the surface of the stretch film. The grinding block is pushed outward by pulling the rope to grind the surface of the exhaust pipe. The telescopic length of the grinding block can be adjusted by the thickness of the wall of the exhaust pipe. The surface of the exhaust pipe can be accurately ground by a grinding block with a sufficient length, thereby avoiding the problem of insufficient or excessive grinding on the surface of the exhaust pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the internal cross-sectional structure of the working box of the present invention;

[0025] Figure 3 It is a schematic cross-sectional structural diagram of the rotating mechanism of the present invention;

[0026] Figure 4 It is a schematic cross-sectional structural diagram of the push assembly of the present invention;

[0027] Figure 5 It is a front view structural schematic diagram of the stretching assembly of the present invention;

[0028] Figure 6 1 is a left-side structural schematic diagram of the drawbar assembly of the present invention;

[0029] Figure 7 It is a front view structural schematic diagram of the pressure mechanism of the present invention;

[0030] Figure 8 It is a front view structural schematic diagram of the contact assembly of the present invention.

[0031] In the figure: 1, working box; 2, top groove; 3, frame; 4, sliding groove; 5, rotating mechanism; 501, connecting ring; 502, sliding bar; 503, telescopic block; 504, pushing assembly; 5041, pushing ring; 5042, connecting block; 5043, sliding rod; 5044, pushing block; 5045, connecting rod; 5046, telescopic cavity; 5047, telescopic belt; 505, stretching assembly; 5051, stretching film; 5052, pulling rope; 5053, compression plate; 5054, grinding block; 6, pulling distance assembly; 6 01. Pull plate; 602. Contact ring; 603. Sliding block; 604. Connecting pipe; 605. Stretching ring; 7. Pressure mechanism; 701. Telescopic column; 702. Feeding plate; 703. Telescopic rod; 704. Cooling pipe; 705. Feeding rod; 706. Pressure ring; 707. Compression column; 708. Telescopic disk; 709. Contact assembly; 7091. Angle plate; 7092. Telescopic bag; 7093. Telescopic pipe; 7094. Sliding plate; 7095. Rolling wheel; 7096. Cooling bag; 7097. Moving block. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] For example, see Figure 1-Figure 5 The present invention provides a technical solution: a cylindrical grinding device for automobile parts, comprising a working box 1, a top groove 2 is provided on the top of the working box 1, a sliding groove 4 is provided on the bottom of the inner wall of the working box 1, a frame 3 is fixedly connected to one end of the working box 1, a pull distance component 6 is provided on the inner wall of the top groove 2, and a pressure mechanism 7 is provided on the surface of the frame 3, and further comprising:

[0034] The rotating mechanism 5 includes a connecting ring 501 slidably connected to the inner walls of the sliding groove 4 on both sides through sliders, a sliding bar 502 is fixedly connected to the surface of the connecting ring 501, a telescopic block 503 is slidably connected to the surface of the sliding bar 502, a pushing component 504 is provided on the inner wall of the telescopic block 503, and a stretching component 505 is provided at the bottom of the telescopic block 503.

[0035] The pushing component 504 includes a pushing ring 5041 slidably connected to the inner wall of the telescopic block 503 through a slider, and connecting blocks 5042 fixedly connected to the inner walls of the pushing ring 5041 on both sides. A storage hole is provided at the end of the connecting block 5042 away from the telescopic cavity 5046, and a push rod is slidably connected to the inside of the storage hole. An air pressure membrane is fixed to the bottom of the inner wall of the connecting block 5042. When the push rod is squeezed from the outside, the air pressure membrane will be squeezed. The stronger the squeezing force of the push rod on the air pressure membrane is, the greater the amount of air pressure discharged outwards is, and the longer the distance the telescopic belt 5047 is pulled outwards is, thereby generating a greater thrust on the pushing ring 5041. The inner wall of the connecting block 5042 is fixedly connected to a sliding rod 5043, the surface of the sliding rod 5043 is fixedly connected to a telescopic cavity 5046, the surface of the connecting block 5042 is fixedly connected to a connecting rod 5045, the surface of the connecting rod 5045 is sleeved with a telescopic belt 5047, the end of the telescopic belt 5047 away from the connecting rod 5045 is slidably connected to the inner wall of the telescopic cavity 5046, the inner wall of the sliding rod 5043 is slidably connected to a pushing block 5044 through a slider, and the end of the telescopic belt 5047 away from the connecting rod 5045 is fixedly connected to the surface of the pushing block 5044.

[0036] The stretching assembly 505 includes a stretching membrane 5051 fixedly connected to the bottom of the inner wall of the telescopic block 503, a plurality of compression tubes fixed inside the stretching membrane 5051, and compressed gas is injected inside. When the outer surface of the stretching membrane 5051 is squeezed, the compressed gas inside the compression tube will be discharged into the pulling rope 5052, and push the pulling rope 5052. The pulling rope 5052 is fixedly connected to both sides of the stretching membrane 5051, and the end of the pulling rope 5052 away from the stretching membrane 5051 is fixedly connected to a compression plate 5053, and the two ends of the compression plate 5053 are fixedly connected to the bottom slot of the telescopic block 503, and a grinding block 5054 is slidably connected in the bottom slot of the compression plate 5053.

[0037] The working method of the first embodiment is as follows: the automobile exhaust pipe is placed inside the working box 1, the exhaust pipe is fixed by the clamp inside the working box 1, the propeller inside the working box 1 is started to drive the connecting ring 501 to slide on the inner wall of the sliding groove 4, when the connecting ring 501 slides on the surface of the exhaust pipe to the position where grinding is required, the power device inside the connecting ring 501 is started to drive the telescopic block 503 to slide on the surface of the sliding bar 502, when the telescopic block 503 slides on the surface of the sliding bar 502, the surface of the exhaust pipe is polished by the grinding block 5054. When the telescopic block 503 rotates on the surface of the sliding bar 502, the push ring 5041 inside the telescopic block 503 slides on the inner wall of the telescopic block 503 due to the rotational inertia. When the push ring 5041 rotates on the inner wall of the telescopic block 503 to the surface of the stretch film 5051, the telescopic block 503 squeezes the top of the stretch film 5051, causing the inside of the stretch film 5051 to shrink inward, thereby ejecting gas outward to flow into the pull rope 5052 to drive it to expand outward. When the pull ropes 5052 on both sides are pulled When the outer side is extended into the compression plate 5053, it pushes the grinding block 5054, so that the grinding block 5054 is extended outward to the surface of the exhaust pipe for grinding. When the wall of the automobile exhaust pipe is ground to a thinner state, it is necessary to reduce the speed of the power device to reduce the grinding intensity of the grinding block 5054 on the surface of the exhaust pipe. When the speed of the telescopic block 503 on the surface of the sliding bar 502 decreases, the sliding speed of the telescopic block 503 inside it will decrease. After the surface of the stretch film 5051 is not continuously squeezed, the stretch film 505 The compressed gas transported outward into the pulling rope 5052 will disappear, so that the pulling rope 5052 will expand and contract inward, thereby driving the grinding block 5054 to expand and contract inward into the compression plate 5053. By setting this component, when the surface of the exhaust pipe is ground to a thinner state, the rotation speed of the grinding device on the surface of the exhaust pipe can be reduced, and the contact surface of the grinding block 5054 on the surface of the exhaust pipe can be reduced to reduce friction, thereby preventing the grinding force of the grinding block 5054 on the surface of the exhaust pipe from being too large to cause cutting holes on the surface of the exhaust pipe.

[0038] Embodiment 2: The difference from embodiment 1 is as follows: Figure 6 The pull-distance component 6 includes a pull-distance plate 601, which is fixedly connected to the inner wall of the top groove 2. A contact ring 602 is slidably connected in the bottom slot of the pull-distance plate 601. The contact ring 602 is made of a retractable material and has an air pressure cavity inside. When subjected to external compression, it will shrink inward and discharge air pressure into the pull-distance plate 601 to push the sliding block 603. A sliding block 603 is slidably connected in the top slot of the pull-distance plate 601. A connecting tube 604 is fixedly connected to the top of the sliding block 603. A stretching ring 605 is fixedly connected to the left side of the connecting tube 604. When the inner stretching ring 605 of the telescopic column 701 is away from the end of the connecting tube 604 and fixedly connected to the right side of the frame 3,

[0039] The working method of the second embodiment of the present invention is as follows: when the exhaust pipe is clamped inside the working box 1, the exhaust pipe will be squeezed with the bottom of the contact ring 602. The larger the outer diameter of the exhaust pipe wall, the stronger the squeezing force on the contact ring 602, thereby making the contact ring 602 shrink toward the inside of the distance plate 601. When multiple contact rings 602 shrink inward, air pressure will be generated and flow out from one side of the inner wall of the distance plate 601. The air pressure pushes the sliding block 603, causing the sliding block 603 to slide on the inner wall of the distance plate 601 toward the frame 3. During the sliding process, the connecting tube 604 will squeeze the stretching ring 605, causing the stretching ring 605 to be compressed inwardly inside the frame 3. The stretching ring 605 passes through the frame 3 to The pressure transmitted inside the telescopic column 701 will be transmitted to the inside of the lower material rod 705, causing multiple pressure rings 706 to slide downward on the surface of the lower material rod 705. The longer the downward telescopic distance of the multiple pressure rings 706, the greater the pressure exerted on the cooling pipe 704 by the bottom of the lower material rod 705, so that the amount of coolant discharged from the cooling pipe 704 is sufficient. When the outer diameter of the exhaust pipe wall is larger, the grinding force of the exhaust pipe wall by the grinding device is stronger, so the grinding heat generated on the surface of the exhaust pipe is greater, which will result in more coolant being required. The sufficient amount of coolant can be defined by different exhaust pipe models to avoid insufficient amount of coolant required when grinding the exhaust pipe surface.

[0040] Example 3: Based on Example 1, continue to refer to Figure 7-Figure 8 The pressure mechanism 7 includes a telescopic column 701, one end of the telescopic column 701 is fixedly connected to the left side of the frame 3, the end of the telescopic column 701 away from the frame 3 is fixedly connected to a blanking plate 702, the right side of the blanking plate 702 is fixedly connected to a telescopic rod 703, the end of the telescopic rod 703 away from the blanking plate 702 is slidably connected to a telescopic disk 708, and a contact component 709 is provided on the inner wall of the telescopic disk 708.

[0041] The pressure mechanism 7 also includes a cooling tube 704, which is fixedly connected to the bottom of the inner wall of the blanking plate 702, and a blanking rod 705 is fixedly connected to the top of the cooling tube 704. One end of the blanking rod 705 away from the cooling tube 704 is fixedly connected to the top of the inner wall of the blanking plate 702, and a pressure ring 706 is slidably connected to the surface groove of the blanking rod 705 through a slider. One end of the stretching ring 605 penetrates the surface of the frame 3 and moves inside the telescopic column 701, and a telescopic film is fixed inside the telescopic column 701. When squeezed by one end of the stretching ring 605, gas will flow into the inside of the blanking rod 705 to push the pressure ring 706. An absorption hole is provided inside the pressure ring 706. When multiple pressure rings 706 absorb the gas, their weight increases and the accumulated weight after sliding contact will cause sufficient pressure to the inside of the cooling tube 704, thereby squeezing the coolant inside the cooling tube 704 outward. A compression column 707 is fixedly connected to the surface of the pressure ring 706 , and one end of the compression column 707 penetrates the surface of the blanking plate 702 .

[0042] The contact assembly 709 includes an angle plate 7091, which is fixedly connected to the bottom of the inner wall of the telescopic disk 708. The inner walls of the angle plate 7091 are fixedly connected with telescopic bags 7092 on both sides. The top of the angle plate 7091 is fixedly connected with a telescopic tube 7093. The two sides of the telescopic tube 7093 are fixedly connected with sliding plates 7094. The sliding plates 7094 have the characteristics of bending and stretching. When the sliding plates 7094 come into contact with the wall of the exhaust pipe, they will bend and stretch outward. At the same time, the surface of the rolling wheel 7095 is arranged It is equipped with multiple adsorption blocks. When the rolling wheel 7095 contacts the inner wall of the exhaust pipe, the rolling wheel 7095 will be briefly adsorbed to the pipe wall, so that the slide plate 7094 slides on the surface of the pipe wall. The top slot of the slide plate 7094 is connected to the moving block 7097 through sliding. The surface of the moving block 7097 is rotatably connected to the rolling wheel 7095 through a rotating shaft. The rolling wheel 7095 contacts the inner wall of the slide plate 7094. The bottom of the inner wall of the slide plate 7094 is fixedly connected to a cooling bag 7096.

[0043] Working method of the third embodiment: when the exhaust pipe is clamped on the inner wall of the working box 1, the cooling pipe 704 is squeezed by multiple pressure rings 706, which causes the internal coolant to be transmitted into the telescopic plate 708 through the telescopic rod 703. When the telescopic plate 708 receives the coolant, it will be absorbed by the telescopic bag 7092. When the telescopic bag 7092 receives the coolant, it will drive the telescopic pipe 7093 at the top to telescope toward the top. When the telescopic pipe 7093 drives the slide plate 7094 to move to the inside of the pipe wall of the exhaust pipe, the rolling wheel 7095 will come into contact with the pipe wall. Since the manufacturing materials of the telescopic block 503 and the slide plate 7094 are both magnetic The two parts are made of a material, and a magnetic attraction effect will be generated when they are in close contact. When the telescopic block 503 rotates on the surface of the exhaust pipe, it will drive the angle plate 7091 to slide on the inner wall of the telescopic disk 708. At the same time, the cooling bag 7096 will generate pressure on the coolant inside the telescopic bag 7092 due to the contact with the pipe wall, so that the coolant inside the telescopic bag 7092 is ejected from the inside of the cooling bag 7096, and the inner wall of the exhaust pipe is cooled by the ejected coolant. When the wall of the exhaust pipe is ground to a thinner state, the inner wall of the exhaust pipe is cooled by the coolant ejected in time, so as to avoid the high temperature heat generated by the grinding device when grinding the outside of the exhaust pipe to penetrate the pipe wall. When the connecting ring 501 slides on the inner wall of the sliding groove 4 to the surface of the blanking plate 702, the multiple pressure rings 706 will generate pressure on the inside of the cooling tube 704 during the downward sliding process, so that a part of the coolant is squeezed from the cooling tube 704 into the compression column 707. After the coolant flows into the compression column 707, it will drive it to expand and contract outward, and extend into the inner wall of the connecting block 5042 through one end of the compression column 707, thereby squeezing the air pressure film inside the connecting block 5042, so that the connecting block 5042 discharges the air pressure outward into the interior of the sliding rod 5043, thereby pushing the pushing block 5044. When the pushing block 5044 slides outward on the inner wall of the sliding rod 5043, it will drive the telescopic belt 504 7 is pulled out from the inside of the telescopic cavity 5046. When one end of the telescopic belt 5047 is pulled out, the other end thereof fixed on the surface of the connecting rod 5045 will pull the connecting rod 5045. After being pulled, the connecting rod 5045 will drive the pushing ring 5041 fixed to the connecting block 5042 to accelerate the rotation on the inner wall of the telescopic block 503, thereby accelerating the pushing of the surface of the stretching film 5051. The grinding block 5054 is pushed outward by the pulling rope 5052 to grind the surface of the exhaust pipe. The telescopic length of the grinding block 5054 can be adjusted according to the thickness of the wall of the exhaust pipe. The grinding block 5054 with a sufficient length can grind the surface of the exhaust pipe, thereby avoiding the problem of insufficient or excessive grinding on the surface of the exhaust pipe.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cylindrical grinding device for automobile parts, comprising a working box (1), a top groove (2) is provided on the top of the working box (1), a sliding groove (4) is provided on the bottom of the inner wall of the working box (1), one end of the working box (1) is fixedly connected to a frame (3), a pull-off assembly (6) is provided on the inner wall of the top groove (2), and a pressure mechanism (7) is provided on the surface of the frame (3), characterized in that: Also includes: The rotating mechanism (5) comprises a connecting ring (501) slidably connected to both sides of the inner wall of the sliding groove (4) via sliding blocks, a sliding bar (502) being fixedly connected to the surface of the connecting ring (501), a telescopic block (503) being slidably connected to the surface of the sliding bar (502), a pushing component (504) being provided on the inner wall of the telescopic block (503), and a stretching component (505) being provided at the bottom of the telescopic block (503); The pushing assembly (504) comprises a pushing ring (5041) slidably connected to the inner wall of the telescopic block (503) via a slider, connecting blocks (5042) fixedly connected to the inner wall of the pushing ring (5041), the inner wall of the connecting block (5042) being fixedly connected to a sliding rod (5043), the surface of the sliding rod (5043) being fixedly connected to a telescopic cavity (5046), the surface of the connecting block (5042) being fixedly connected to a connecting rod (5045), the surface of the connecting rod (5045) being sleeved with a telescopic belt (5047), one end of the telescopic belt (5047) away from the connecting rod (5045) being slidably connected to the inner wall of the telescopic cavity (5046), the inner wall of the sliding rod (5043) being slidably connected to a pushing block (5044) via a slider, and one end of the telescopic belt (5047) away from the connecting rod (5045) being fixedly connected to the surface of the pushing block (5044); The stretching assembly (505) comprises a stretching membrane (5051) fixedly connected to the bottom of the inner wall of the telescopic block (503), a pulling rope (5052) fixedly connected to both sides of the stretching membrane (5051), a compression plate (5053) fixedly connected to one end of the pulling rope (5052) away from the stretching membrane (5051), two ends of the compression plate (5053) fixedly connected to the bottom slot of the telescopic block (503), and a grinding block (5054) slidably connected in the bottom slot of the compression plate (5053); The pressure mechanism (7) comprises a telescopic column (701), one end of the telescopic column (701) is fixedly connected to the left side of the frame (3), the end of the telescopic column (701) away from the frame (3) is fixedly connected to a blanking plate (702), the right side of the blanking plate (702) is fixedly connected to a telescopic rod (703), the end of the telescopic rod (703) away from the blanking plate (702) is slidably connected to a telescopic disk (708), and the inner wall of the telescopic disk (708) is provided with a contact component (709); The pressure mechanism (7) further comprises a cooling tube (704), wherein the cooling tube (704) is fixedly connected to the bottom of the inner wall of the blanking plate (702), and a blanking rod (705) is fixedly connected to the top of the cooling tube (704), and one end of the blanking rod (705) away from the cooling tube (704) is fixedly connected to the top of the inner wall of the blanking plate (702), and a pressure ring (706) is slidably connected to the surface groove of the blanking rod (705) via a slider, and a compression column (707) is fixedly connected to the surface of the pressure ring (706), and one end of the compression column (707) passes through the surface of the blanking plate (702).

2. The cylindrical grinding device for automobile parts according to claim 1, characterized in that: The drawbar assembly (6) comprises a drawbar plate (601), the drawbar plate (601) being fixedly connected to the inner wall of the top groove (2), a contact ring (602) being slidably connected in the bottom groove hole of the drawbar plate (601), a sliding block (603) being slidably connected in the top groove hole of the drawbar plate (601), a connecting tube (604) being fixedly connected at the top of the sliding block (603), a stretching ring (605) being fixedly connected at the left side of the connecting tube (604), and an end of the stretching ring (605) away from the connecting tube (604) being fixedly connected to the right side of the frame (3).

3. The cylindrical grinding device for automobile parts according to claim 1, characterized in that: The contact assembly (709) includes an angle plate (7091), wherein the angle plate (7091) is fixedly connected to the bottom of the inner wall of the telescopic disk (708), and telescopic bags (7092) are fixedly connected to both sides of the inner wall of the angle plate (7091), and a telescopic tube (7093) is fixedly connected to the top of the angle plate (7091), and both sides of the telescopic tube (7093) are fixedly connected to a slide plate (7094), and a moving block (7097) is slidably connected to the top slot of the slide plate (7094), and a rolling wheel (7095) is rotatably connected to the surface of the moving block (7097) via a rotating shaft, and the rolling wheel (7095) contacts the inner wall of the slide plate (7094), and a cooling bag (7096) is fixedly connected to the bottom of the inner wall of the slide plate (7094).

4. The cylindrical grinding device for automobile parts according to claim 3, characterized in that: The number of the sliding plates (7094) is set to two, and the two sliding plates (7094) are symmetrically installed on both sides of the telescopic tube (7093) with the center line of the angle plate (7091) as the symmetry axis.

5. The cylindrical grinding device for automobile parts according to claim 1, characterized in that: The number of the pulling ropes (5052) is set to two, and the two pulling ropes (5052) are symmetrically installed on both sides of the stretching film (5051) with the center line of the stretching film (5051) as the symmetry axis.

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