Flange circumferential surface grinding device

Abstract

The invention relates to the technical field of circumferential surface grinding, and discloses a flange circumferential surface grinding device which comprises a left supporting frame and a right supporting frame and further comprises a driving roller rotationally installed on the left supporting frame and a pushing table slidably connected with the driving roller, and a driving piece used for driving the pushing table to slide is installed on the driving roller. A plurality of inner pressing plates in elastic sliding connection with the driving roller are circumferentially arranged on the outer side of the driving roller; a fixing ring is fixedly installed on the right supporting frame, a plurality of outer extrusion parts in sliding connection with springs of the fixing ring are arranged on the inner side of the fixing ring in the circumferential direction, the flange is located between the inner pressing plate and the outer extrusion parts, and the inner pressing plate comprises a first grinding block and a first locking and pressing block which are sequentially arranged in the axial direction. According to the flange grinding device, the inner circumferential face and the outer circumferential face of a flange can be ground through one grinding device, two grinding devices do not need to be used for grinding the inner circumferential face and the outer circumferential face of the flange correspondingly, economic consumption can be reduced, repeated grinding is avoided, and operation procedures during repeated grinding are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of circumferential surface grinding, and in particular to a flange circumferential surface grinding device. Background Art

[0002] Flanges are parts that connect shafts and are often used to connect pipe ends. They are mostly in the shape of a ring. Flanges are divided into flat neck flanges and neck flanges. Regardless of the type of flange, its outer and inner circumferential surfaces need to be polished to remove burrs during the processing process.

[0003] For example, the Chinese invention patent with application number CN202210436968.3, publication (announcement) number CN114523346B, and name "A kind of automatic grinding equipment for the surface of annular castings", adjusts the angle between the first mounting rod and the second mounting rod by cooperating with each other through the first end face gear ring and the second end face gear ring in the angle adjustment mechanism, so that the angle between the neck and the disc of different neck flanges can be adjusted, so that the neck and the side wall can be polished at the same time, and the polishing quality is improved. In addition, by arranging and fitting multiple flanges on the outside of the top plate, after the flange located on the right part of the top plate is polished, the first electric telescopic rod is used to push the flange group to the right, so that the polished flange is ejected, the flange to be polished is exposed and polished, and the above operation is repeated after polishing. Even if multiple flanges are polished, it is only necessary to fill the outside of the top plate once.

[0004] The automatic surface grinding equipment for annular castings provided by the above-mentioned invention patent can grind the neck and side wall of the neck flange at the same time, and when grinding multiple flanges, it only needs to fill the flange to the outside of the top plate once under the pushing action of the first electric telescopic rod, thereby improving work efficiency. However, it is unable to grind the outer circumferential surface and the inner circumferential surface of the neck flange, because when grinding the outer circumferential surface of the flange, the flange needs to be fixed from the inside of the flange by a fixing mechanism, and when grinding the inner circumferential surface of the flange, the flange needs to be fixed from the outside of the flange by a fixing mechanism. Otherwise, the fixing mechanism will hinder the grinding mechanism and it will be impossible to grind the flange circumferential surface for a complete circle, and a set of grinding devices can hardly simultaneously achieve the requirements of grinding the outer side of the inner side of the flange and grinding the inner side of the outer side. Therefore, in the prior art, different grinding devices are required to grind the outer circumferential surface and the inner circumferential surface of the flange respectively. Grinding the inner and outer circumferential surfaces of the flange respectively by two different sets of grinding devices will not only cause greater economic consumption, but also repeat the operation procedures in the grinding process, such as loading and unloading, thereby greatly increasing the time required for grinding and reducing efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a flange circumferential surface grinding device to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a flange circumferential surface grinding device, comprising a left support frame and a right support frame, and also comprising an active roller rotatably mounted on the left support frame and a pushing platform slidably connected to the active roller, wherein a driving member for driving the pushing platform to slide is mounted on the active roller, and a plurality of inner pressure plates elastically slidably connected to the active roller are arranged circumferentially on the outer side of the active roller;

[0007] A fixing ring is fixedly installed on the right support frame, and a plurality of outer extrusion members slidably connected to the springs thereof are arranged circumferentially on the inner side of the fixing ring, the flange is located between the inner pressure plate and the outer extrusion member, the inner pressure plate comprises a first grinding block and a first locking block arranged in sequence axially, and the outer extrusion member comprises a second locking block corresponding to the first grinding block and a second grinding block corresponding to the first locking block;

[0008] The plurality of outer extrusion members and the plurality of inner pressure plates are all linked to the pushing platform. During the sliding process of the pushing platform, the plurality of inner pressure plates are driven to slide synchronously toward the outside of the active roller while the plurality of outer extrusion members are driven to slide synchronously toward the inside of the fixed ring, so that the first grinding block and the second locking block squeeze the same flange at the same time, and the first locking block and the second grinding block squeeze the same flange at the same time, the friction force between the second locking block and the flange is greater than the friction force between the first grinding block and the flange, so that when the active roller rotates, the first grinding block is driven to grind the inner circumference of the flange, and the friction force between the first locking block and the flange is greater than the friction force between the second grinding block and the flange, so that when the active roller rotates, the second grinding block is driven to grind the outer circumference of the flange.

[0009] The above-mentioned flange circumferential surface grinding device, the active roller includes a left cylinder and a right cylinder arranged coaxially, a plurality of horizontal rods are fixedly connected between the left cylinder and the right cylinder, the pushing platform is located between the left cylinder and the right cylinder, and the plurality of horizontal rods are slidably plugged into the pushing platform.

[0010] The above-mentioned flange circumferential surface grinding device, the left support frame of the driving member includes a first driving motor fixedly installed on the left cylindrical end surface, and the power output end of the first driving motor is connected to a screw screwed to the center of the pushing platform so that when the first driving motor drives the screw screw to rotate, it drives the pushing platform to slide along the horizontal rod.

[0011] The above-mentioned flange circumferential surface grinding device, the inner pressure plate also includes two guide columns fixedly installed at the bottom thereof, the left cylinder and the right cylinder are both provided with guide holes, the two guide columns on the inner pressure plate are slidably plugged into the guide holes on the left cylinder and the right cylinder in a one-to-one correspondence, a second tension spring is sleeved on the guide column, one end of the second tension spring is fixedly connected to the inner pressure plate, and the other end is fixedly connected to the guide hole.

[0012] The above-mentioned flange circumferential surface grinding device, the inner pressure plate also includes a protrusion fixedly arranged at its bottom, and a plurality of first inclined surfaces corresponding to the protrusions on the plurality of inner pressure plates are opened on the circumferential surface of the pushing platform, the protrusions are slidably abutted against the first inclined surfaces, and when the pushing platform slides toward the free end of the inner pressure plate, the first inclined surface is driven to push the protrusion to drive the inner pressure plate to slide outward.

[0013] The above-mentioned flange circumferential surface grinding device, the outer extrusion part also includes a sliding table, at least two telescopic rods are fixedly connected between the sliding table and the inner wall of the fixed ring, a first tension spring is sleeved on the telescopic rod, one end of the first tension spring is fixedly connected to the fixed ring, and the other end is fixedly connected to the sliding table, the second locking block and the second grinding block are both installed on the inner side surface of the sliding table, a second inclined surface is opened on the sliding table, a linkage is installed between the second inclined surface and the pushing table, and when the pushing table slides toward the free end of the inner pressure plate, the sliding table is pushed downward by the linkage to move the second locking block and the second grinding block inward.

[0014] The above-mentioned flange circumferential surface grinding device, the linkage includes a push ring located at the outer side of the flange and a plurality of guide rails fixedly connected to the fixed ring and arranged circumferentially, the push ring is fixedly mounted with a plurality of sliding plates slidably plugged in one-to-one correspondence with the plurality of guide rails, the free end of the bottom of the sliding plate is provided with an inclined push surface slidably fitted with the second inclined surface, the pushing platform includes a plurality of extension plates fixedly mounted and circumferentially arranged, the plurality of extension plates abut against one end of the push ring away from the sliding platform, when the pushing platform slides toward the free end of the inner pressure plate, the extension plate drives the push ring to slide, and the push ring then drives the sliding plate to slide toward the sliding platform so that the inclined push surface presses down the second inclined surface.

[0015] In the above-mentioned flange circumferential surface grinding device, a plurality of balls are rollingly embedded in the end of the push ring away from the sliding table, the balls protrude from the end surface of the push ring, and the extension plate abuts against one end of the push ring by abutting against the balls.

[0016] The above-mentioned flange circumferential surface grinding device has multiple flanges sleeved on the multiple inner pressure plates, and the multiple flanges are butted end to end. Multiple stepping mechanisms are provided on the push ring, and the power output end of the stepping mechanism is butted against the side of the tail flange. The multiple flanges are pushed by the stepping mechanism to move in steps along the axial direction of the inner pressure plate so that the multiple flanges can be ground one by one.

[0017] The above-mentioned flange circumferential surface grinding device has an insertion rod installed between the right cylinder and the fixed ring, a center hole is opened in the center of the right cylinder, and a plug hole is opened on the fixed ring. One end of the insertion rod is slidably inserted in the center hole, and the other end is slidably inserted in the plug hole.

[0018] Beneficial effects:

[0019] 1. In the above technical scheme, the present invention provides a flange circumferential surface grinding device, the present invention sets a plurality of inner pressure plates and a plurality of outer extrusion pieces by circumferential elastic sliding, and makes the plurality of inner pressure plates and the plurality of outer extrusion pieces all linked with the pushing platform, so that when the pushing platform slides, the plurality of inner pressure plates can extrude the inner circumferential surface of the flange, and the plurality of outer extrusion pieces can extrude the outer circumferential surface of the flange, and the inner pressure plate includes a first grinding block and a first locking block, and the outer extrusion piece includes a second locking block and a second grinding block, based on the friction between the first locking block and the flange being greater than the friction between the second grinding block and the flange The friction force between the flanges, and the friction force between the first grinding block and the flange is smaller than the friction force between the second locking block and the flange, so that when the active roller rotates and drives the multiple inner pressure plates to rotate, the first grinding block can grind the inner circumference of the flange, and the second grinding block can grind the outer circumference of the flange, so that one set of grinding devices can grind the inner and outer circumference of the flange, and there is no need for two sets of grinding devices to grind the inner and outer circumference of the flange respectively, thereby reducing economic consumption, avoiding repeated grinding, reducing the operation process during repeated grinding, and effectively solving the shortcomings of the prior art;

[0020] 2. Furthermore, in the prior art, when the inner circumferential surface and the outer circumferential surface of the flange are polished, due to the different positions of the inside and outside, two different sets of fixing mechanisms and polishing mechanisms need to be configured, while the multiple inner pressure plates in the present invention play the role of polishing the inner circumferential surface of the flange and the role of fixing the flange, and the multiple outer extrusion parts play the role of polishing the outer circumferential surface of the flange and the role of fixing the flange, so that the inner pressure plate and the outer extrusion parts play different roles. When the inner circumferential surface and the outer circumferential surface of the flange are polished, only the cooperation of the inner pressure plate and the outer extrusion part is needed to realize the polishing and fixing of the inner circumferential surface and the outer circumferential surface of the flange, that is, only one set of fixing mechanism and polishing mechanism is needed, thereby eliminating one set of fixing mechanism and polishing mechanism, and improving the utilization rate of the inner pressure plate and the outer extrusion part;

[0021] 3. The present invention adopts the setting of the stepping mechanism, and after installing multiple flanges on the inner pressure plate at one time, the multiple flanges can be moved step by step, so that the multiple flanges can be polished one by one on the inner and outer circumferential surfaces, avoiding the tedious operation of installing the flanges multiple times, and effectively improving the work efficiency;

[0022] 4. By inserting one end of the plug rod into the center hole and the other end into the guide rail, the plug rod plays multiple roles. First, the plug rod plays a supporting role for one end of the active roller (the other end of the active roller is supported by the left support frame), so that both ends of the active roller have support points, thereby improving the stability of the rotation of the active roller and ensuring that the active roller is not prone to axial deformation; second, the polished flange in the prior art has a high falling height during the falling process, which easily causes the flange to be damaged by collision, while the plug rod in the present invention plays a supporting role for the polished flange, that is: the polished flange detaches from the inner pressure plate and falls on the plug rod, and the height of the plug rod from the top of the inner pressure plate is greatly reduced, so that when the flange falls on the plug rod, the impact force on the flange can be greatly reduced, so that the flange is not easily damaged by collision during unloading; third, after being received by the plug rod, the flange can be neatly arranged along the plug rod, which is convenient for sorting and is not prone to collision and wear between each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1 A schematic diagram of the structure of a flange provided in an embodiment of the present invention;

[0025] Figure 2 A schematic structural diagram of a flange circumferential surface grinding device from a first perspective when multiple flange sleeves are arranged on an inner pressure plate provided in an embodiment of the present invention;

[0026] Figure 3 The embodiment of the present invention provides Figure 2 A schematic diagram of the enlarged structure of part A;

[0027] Figure 4 The embodiment of the present invention provides Figure 2 A schematic diagram of the structure of the flange circumferential surface grinding device after the flange is removed;

[0028] Figure 5 A schematic structural diagram of a flange circumferential surface grinding device from a second perspective when multiple flanges are sleeved on an inner pressure plate provided in an embodiment of the present invention;

[0029] Figure 6 The embodiment of the present invention provides Figure 5 The schematic diagram of the structure when the plug rod is pulled out;

[0030] Figure 7 The embodiment of the present invention provides Figure 5A schematic diagram of the structure of the flange circumferential surface grinding device after the flange is removed;

[0031] Figure 8 A schematic diagram of the disassembled structure of a flange circumferential surface grinding device provided in an embodiment of the present invention;

[0032] Fig. 9 A schematic diagram of the structure of the inner pressure plate and the active roller when they are separated according to an embodiment of the present invention;

[0033] Fig.10 A schematic diagram of the structure between the active roller, the push platform and the driving member after the inner pressure plate is removed according to an embodiment of the present invention;

[0034] Fig.11 A schematic diagram of the connection structure between the linkage member and the stepping mechanism, the outer extrusion member, and the fixing ring provided in an embodiment of the present invention;

[0035] Fig.12 The embodiment of the present invention provides Fig.11 Schematic diagram of the split structure in ;

[0036] Fig.13 A schematic structural diagram of a first-view when one of the sliding platforms and the fixed ring is separated according to an embodiment of the present invention;

[0037] Fig.14 A schematic diagram of the structure from a second perspective when one of the sliding platforms and the fixing ring provided in an embodiment of the present invention is separated.

[0038] Description of reference numerals:

[0039] 1. Left support frame; 2. Right support frame; 3. Fixed ring; 301. Guide rail; 302. Guide plate; 303. Socket; 4. Insert rod; 5. Left cylinder; 501. Guide hole; 6. Inner pressure plate; 601. First grinding block; 602. First locking block; 603. Bump; 604. Guide column; 7. Pushing platform; 701. Extension plate; 702. First inclined surface; 8. Pushing ring; 801. Ball; 802. Sliding plate; 8021. Inclined push surface; 803. Mounting plate ; 9. Sliding table; 901. Second locking block; 902. Second grinding block; 903. Second inclined surface; 904. Inner hole; 905. Strip groove; 10. Flange; 11. Push plate; 12. Servo cylinder; 13. Horizontal rod; 14. First tension spring; 1401. Telescopic rod; 15. Right cylinder; 1501. Center hole; 16. First drive motor; 17. Screw; 18. Second tension spring; 19. Second drive motor; 20. Driving gear; 21. Driven gear. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0041] First embodiment:

[0042] like Figure 1-14 As shown, a flange circumferential surface grinding device provided by an embodiment of the present invention comprises a left support frame 1 and a right support frame 2, and also comprises an active roller rotatably mounted on the left support frame 1 and a pushing platform 7 slidably connected to the active roller, a driving member for driving the pushing platform 7 to slide is mounted on the active roller, and a plurality of inner pressure plates 6 elastically slidably connected to the active roller are arranged circumferentially on the outer side of the active roller;

[0043] A fixing ring 3 is fixedly mounted on the right support frame 2, and a plurality of outer extrusions are circumferentially arranged on the inner side of the fixing ring 3 and are slidably connected to its springs. The flange 10 is located between the inner pressure plate 6 and the outer extrusions. The inner pressure plate 6 includes a first grinding block 601 and a first locking block 602 which are sequentially arranged axially, and the outer extrusion includes a second locking block 901 corresponding to the first grinding block 601 and a second grinding block 902 corresponding to the first locking block 602.

[0044] Multiple external extrusion members and multiple internal pressure plates 6 are all linked to the pushing platform 7. During the sliding process of the pushing platform 7, the multiple internal pressure plates 6 are driven to slide synchronously toward the outside of the active roller while driving the multiple external extrusion members to slide synchronously toward the inside of the fixed ring 3, so that the first grinding block 601 and the second locking block 901 squeeze the same flange 10 at the same time, the first locking block 602 and the second grinding block 902 squeeze the same flange 10 at the same time, the friction force between the second locking block 901 and the flange 10 is greater than the friction force between the first grinding block 601 and the flange 10, so that when the active roller rotates, the first grinding block 601 is driven to grind the inner circumference of the flange 10, and the friction force between the first locking block 602 and the flange 10 is greater than the friction force between the second grinding block 902 and the flange 10, so that when the active roller rotates, the second grinding block 902 is driven to grind the outer circumference of the flange 10.

[0045] The flange circumferential surface grinding device provided in this embodiment is used for grinding the outer circumferential surface and the inner circumferential surface of the flange. The words related to direction and position involved in this embodiment are relative to the accompanying drawings. Specifically, the left support frame 1 and the right support frame 2 are arranged relatively, the active roller is rotatably installed on the left support frame 1, and a driven gear 21 is coaxially and fixedly installed on the active roller. A second drive motor 19 is fixedly installed on the left support frame 1, and the power output end of the second drive motor 19 is connected to a driving gear 20 meshing with the driven gear 21. By starting the second drive motor 19, the driving gear 20 is driven to rotate, and the driving gear 20 drives the driven gear 21 to rotate, thereby driving the active roller to rotate, and the rotation of the active roller is used to provide power for grinding the flange 10. The pushing platform 7 is slidably connected to the active roller, and the driving member can drive the pushing platform 7 to slide back and forth. The reciprocating sliding of the pushing platform 7 is used to drive the multiple inner pressure plates 6 to approach and move away from the inner circumferential surface of the flange 10 while also synchronously driving the multiple outer extrusion members to approach and move away from the outer circumferential surface of the flange 10, thereby achieving the simultaneous extrusion of the flange 10 by the multiple inner pressure plates 6 and the multiple outer extrusion members and the simultaneous moving away from the flange 10.

[0046] The inner pressure plate 6 is elastically slidably plugged with the active roller along the radial direction of the active roller, and can drive multiple inner pressure plates 6 to rotate synchronously when the active roller rotates, wherein the flange 10 is sleeved on the circumscribed circle formed by multiple inner pressure plates 6, and there are multiple flanges 10 that are arranged one by one. When the pushing platform 7 slides toward the free end of the inner pressure plate 6, it can push the multiple inner pressure plates 6 to elastically slide toward the outer side of the active roller, so that the first grinding block 601 and the first locking block 602 on the inner pressure plate 6 respectively squeeze the inner circumferential surfaces of the two adjacent flanges 10, and when the pushing platform 7 slides in the opposite direction, the multiple inner pressure plates 6 are driven to slide elastically toward the inner side of the active roller under the action of elastic force, so that the first grinding block 601 and the first locking block 602 on the inner pressure plate 6 are respectively away from the corresponding inner circumferential surfaces of the flange 10.

[0047] The outer extrusion piece is elastically slidably connected to the fixing ring 3 along the radial direction of the fixing ring 3. When the pushing platform 7 slides toward the free end of the inner pressure plate 6, it can push multiple outer extrusion pieces to slide elastically toward the inner side of the fixing ring 3, so that the second locking block 901 and the second grinding block 902 on the outer extrusion piece respectively squeeze the outer circumferential surfaces of the two adjacent flanges 10. When the pushing platform 7 slides in the opposite direction, the multiple outer extrusion pieces are driven to slide elastically toward the outer side of the fixing ring 3 under the action of elastic force, so that the second locking block 901 and the second grinding block 902 on the outer extrusion piece are respectively away from the outer circumferential surfaces of the corresponding flanges 10.

[0048] The first grinding block 601 and the second locking block 901 correspond to each other, which means that the first grinding block 601 and the second locking block 901 squeeze the same flange 10, that is, the first grinding block 601 squeezes the inner circumference of the flange 10, and the second locking block 901 squeezes the outer circumference of the flange 10; the first locking block 602 and the second grinding block 902 correspond to each other, which means that the first locking block 602 and the second grinding block 902 squeeze the same flange 10, that is, the first locking block 602 squeezes the inner circumference of the flange 10, and the second grinding block 902 squeezes the outer circumference of the flange 10. At the same time, the flanges 10 squeezed by the first grinding block 601 and the first locking block 602 are two adjacent different flanges 10, and naturally the flanges 10 squeezed by the second locking block 901 and the second grinding block 902 are also two adjacent different flanges 10. Furthermore, the second locking block 901 is made of high-roughness rubber, the second locking block 901 itself is elastic, and the thickness of the second locking block 901 is slightly larger than the second grinding block 902. When the second locking block 901 squeezes the outer circumferential surface of the flange 10, extrusion deformation is generated to increase the friction between the flange 10 and the first grinding block 601. The first grinding block 601 is made of aluminum oxide or silicon carbide material with a plurality of fine abrasive particles on the surface, so that when the second locking block 901 and the first grinding block 601 squeeze the flange 10 at the same time, the friction between the second locking block 901 and the flange 10 is greater than the friction between the first grinding block 601 and the flange 10. When the active roller drives the multiple inner pressure plates 6 to rotate, the multiple second locking blocks 901 clamp the flange 10, and the first grinding block 601 rotates synchronously with the inner pressure plate 6 to generate relative sliding between the first grinding block 601 and the flange 10, thereby realizing the first grinding block 601 on the method Grinding of the inner circumference of the flange 10; similarly, the material of the first locking block 602 is the same as that of the second locking block 901, and the thickness of the first locking block 602 is slightly larger than that of the first grinding block 601. When the first locking block 602 squeezes the inner circumference of the flange 10, extrusion deformation is generated to increase the friction between the flange 10, and the second grinding block 902 is made of the same material as the first grinding block 601, so that when the first locking block 602 and the second grinding block 902 squeeze the flange 10 at the same time, the friction between the first locking block 602 and the flange 10 is greater than the friction between the second grinding block 902 and the flange 10. When the active roller drives the multiple inner pressure plates 6 to rotate, the multiple first locking blocks 602 clamp and fix the flange 10 so that the corresponding flange 10 rotates synchronously with the multiple inner pressure plates 6, thereby causing relative sliding between the corresponding flange 10 and the second grinding block 902, so that the second grinding block 902 grinds the outer circumference of the flange 10. For the same flange 10, there is a sequence for grinding, that is, the inner circumference of the same flange 10 is firstly grinded by the first grinding block 601, and then the flange 10 is pushed to the second grinding block 902, and then the outer circumference is grinded by the second grinding block 902. In this way, the inner and outer circumferences of the flange 10 can be ground without repeated loading and unloading.

[0049] Its working principle is as follows: first, multiple flanges 10 are sequentially mounted on multiple inner pressure plates 6 from the free ends of the inner pressure plates 6, and a flange 10 closest to the free end of the inner pressure plate 6 corresponds to the first grinding block 601 and the second locking block 901, and the first locking block 602 and the second grinding block 902 do not contact the flange 10, and then the driving member is started, and the driving member drives the push table 7 to slide toward the free end of the inner pressure plate 6, and the sliding of the push table 7 drives the multiple inner pressure plates 6 to elastically slide toward the outside of the active roller while driving the multiple outer extrusion members to elastically slide toward the inside of the fixed ring 3, until the first grinding block 601 on the multiple inner pressure plates 6 squeezes the end The inner circumferential surface of the flange 10 at the end and the second locking blocks 901 on the multiple external extrusion parts squeeze the outer circumferential surface of the flange 10 at the end. At this time, the flange 10 at the end is squeezed and fixed by the multiple second locking blocks 901. Under the action of friction, there is no relative sliding between the flange 10 and the second locking blocks 901. Then the active roller rotates, and the active roller drives the multiple internal pressure plates 6 to rotate. The rotation of the multiple internal pressure plates 6 drives the multiple first grinding blocks 601 to rotate so that relative sliding occurs between the multiple first grinding blocks 601 and the inner circumferential surface of the flange 10 at the end, thereby realizing the grinding of the inner circumferential surface of the flange 10 at the end.When the inner circumference of the flange 10 at the end is polished, the driving member is started again to drive the push platform 7 to slide in the opposite direction. The reverse sliding of the push platform 7 drives the multiple inner pressure plates 6 to slide elastically toward the inside of the active roller while driving the multiple outer extrusion members to slide elastically toward the outside of the fixing ring 3, so that the first polishing block 601 is away from the inner circumference of the flange 10 and the second locking block 901 is away from the outer circumference of the flange 10, so that the flange 10 at the end is released from the extrusion state, and then a force is applied to the flange 10 at the tail (the tail refers to the direction farthest from the free end of the inner pressure plate 6) toward the free end of the inner pressure plate 6, so that the multiple flanges 10 are moved toward the inner pressure plate 6. The free end moves the axial length of a flange 10. After the flange 10 moves the axial length of the flange 10, the flange 10 at the end moves from between the first grinding block 601 and the second locking block 901 to between the first locking block 602 and the second grinding block 902. Then, the driving member is started again to drive the push platform 7 to move toward the free end of the inner pressure plate 6 so that the first locking block 602 squeezes the inner circumferential surface of the flange 10 at the end, and the second grinding block 902 squeezes the outer circumferential surface of the flange 10 at the end. At the same time, the first grinding block 601 squeezes the inner circumferential surface of the next flange 10, and the second locking block 901 squeezes the outer circumferential surface of the next flange 10. At this time, the flange 10 at the end is squeezed and fixed by the multiple first locking blocks 602. Based on the fact that the friction between the first locking block 602 and the flange 10 is greater than the friction between the second grinding block 902 and the flange 10, and the friction between the first grinding block 601 and the flange 10 is less than the friction between the second locking block 901 and the flange 10, when the active roller rotates again and drives the multiple inner pressure plates 6 to rotate, the rotation of the multiple inner pressure plates 6 causes the first locking block 602 to drive the flange 10 at the end to rotate so that the outer circumferential surface of the flange 10 at the end and the multiple second grinding blocks 902 slide relative to each other, thereby achieving the flange 1 at the end. 0, and at the same time, the rotation of multiple first grinding blocks 601 realizes the grinding of the inner circumference of the next flange 10. When the outer circumference of the flange 10 at the end is polished, the inner circumference of the next flange 10 is also polished. Finally, the driving member drives the pushing platform 7 to slide in the opposite direction to contact and extrude the flange 10 at the end and the next flange 10, and again applies a force toward the free end of the inner pressure plate 6 to the flange 10 at the tail end, so that the flange 10 at the end slides out from the inner pressure plate 6, so that the next flange 10 becomes the flange 10 at the end, and so on, the grinding of the inner and outer circumferences of all flanges 10 can be completed.

[0050] It can be seen that the present invention sets a plurality of inner pressure plates 6 and a plurality of outer extrusion members by circumferential elastic sliding, and makes the plurality of inner pressure plates 6 and the plurality of outer extrusion members all linked with the pushing platform 7, so that when the pushing platform 7 slides, the plurality of inner pressure plates 6 can extrude the inner circumferential surface of the flange 10, and the plurality of outer extrusion members can extrude the outer circumferential surface of the flange 10, and the inner pressure plate 6 includes a first grinding block 601 and a first locking block 602, and the outer extrusion member includes a second locking block 901 and a second grinding block 902, based on the fact that the friction between the first locking block 602 and the flange 10 is greater than the friction between the second grinding block 902 and the flange 10, Moreover, the friction force between the first grinding block 601 and the flange 10 is smaller than the friction force between the second locking block 901 and the flange 10, so that when the active roller rotates and drives the multiple internal pressure plates 6 to rotate, the first grinding block 601 can grind the inner circumferential surface of the flange 10, and the second grinding block 902 can grind the outer circumferential surface of the flange 10, so that one set of grinding devices can grind the inner and outer circumferential surfaces of the flange 10, and there is no need for two sets of grinding devices to grind the inner and outer circumferential surfaces of the flange 10 respectively, thereby reducing economic consumption, avoiding repeated grinding, reducing the operating procedures during repeated grinding, and effectively solving the shortcomings of the prior art.

[0051] Furthermore, in the prior art, when the inner circumferential surface and the outer circumferential surface of the flange 10 are polished, due to the different positions of the inside and outside, two different sets of fixing mechanisms and polishing mechanisms need to be configured, while the multiple inner pressure plates 6 in the present invention play the role of polishing the inner circumferential surface of the flange 10 and fixing the flange 10, and the multiple outer extrusion parts play the role of polishing the outer circumferential surface of the flange 10 and fixing the flange 10, so that the inner pressure plate 6 and the outer extrusion parts play different roles. When the inner circumferential surface and the outer circumferential surface of the flange 10 are polished, the inner circumferential surface and the outer circumferential surface of the flange 10 can be polished and fixed by only the cooperation of the inner pressure plate 6 and the outer extrusion parts, that is, only one set of fixing mechanism and polishing mechanism is required, thereby eliminating one set of fixing mechanism and polishing mechanism, and improving the utilization rate of the inner pressure plate 6 and the outer extrusion parts.

[0052] In this embodiment, the active roller includes a left cylinder 5 and a right cylinder 15 that are coaxially arranged, and a plurality of horizontal rods 13 are fixedly connected between the left cylinder 5 and the right cylinder 15. The plurality of horizontal rods 13 are circumferentially arranged with the axis of the left cylinder 5 as the rotation center. The pushing platform 7 is located between the left cylinder 5 and the right cylinder 15, and the plurality of horizontal rods 13 are slidably connected to the pushing platform 7, so that the plurality of horizontal rods 13 provide guiding and supporting functions for the pushing platform 7.

[0053] The left support frame 1 of the driving member includes a first driving motor 16 fixedly mounted on the end surface of the left cylinder 5, and the power output end of the first driving motor 16 is connected to a screw rod 17 screwed to the center of the pushing platform 7 so that when the first driving motor 16 drives the screw rod 17 to rotate, the pushing platform 7 is driven to slide along the horizontal rod 13. The first driving motor 16 can rotate forward and reverse. When the first driving motor 16 rotates forward, it drives the screw rod 17 to rotate forward so that the pushing platform 7 slides along the horizontal rod 13 toward the free end of the inner pressure plate 6. At this time, the pushing platform 7 drives multiple inner pressure plates 6 to slide elastically toward the outer side of the active roller and multiple outer extrusion members to slide elastically toward the inner side of the fixed ring 3; when the first driving motor 16 rotates reversely, it drives the screw rod 17 to rotate reversely so that the pushing platform 7 slides along the horizontal rod 13 in a direction away from the free end. At this time, the pushing platform 7 drives multiple inner pressure plates 6 to slide elastically toward the inner side of the active roller and multiple outer extrusion members to slide elastically toward the outer side of the fixed ring 3.

[0054] The inner pressure plate 6 also includes two guide posts 604 fixedly mounted at the bottom thereof. The left cylinder 5 and the right cylinder 15 are both provided with guide holes 501. The two guide posts 604 on the inner pressure plate 6 are slidably plugged with the guide holes 501 on the left cylinder 5 and the right cylinder 15 in a one-to-one correspondence. A second tension spring 18 is sleeved on the guide posts 604. One end of the second tension spring 18 is fixedly connected to the inner pressure plate 6, and the other end is fixedly connected to the guide hole 501. Specifically, the guide hole 501 is two upper and lower superimposed circular holes, the diameter of the upper circular hole is larger than the diameter of the lower circular hole, the guide posts 604 are slidably plugged with the lower circular hole, one end of the second tension spring 18 is fixedly connected to the bottom of the upper circular hole, the second tension spring 18 is always in a stretched state, and in the initial state, the end face of the guide post 604 abuts against the bottom face of the guide hole 501 to limit the guide post 604. Under the elastic force of the second tension spring 18, when the push platform 7 slides away from the free end of the inner pressure plate 6, the second tension spring 18 pulls the guide column 604 to slide toward the inside of the guide hole 501, thereby causing the inner pressure plate 6 to slide toward the inside of the active roller.

[0055] Furthermore, the inner pressure plate 6 also includes a protrusion 603 fixedly arranged at the bottom thereof, and a plurality of first inclined surfaces 702 corresponding to the protrusions 603 on the inner pressure plates 6 are provided on the circumferential surface of the push platform 7, and the protrusions 603 are slidably abutted against the first inclined surfaces 702, and when the push platform 7 slides toward the free end of the inner pressure plate 6, the first inclined surface 702 is driven to push the protrusion 603 to drive the inner pressure plate 6 to slide outward. That is, based on the inclined setting of the first inclined surface 702, when the push platform 7 slides toward the free end of the inner pressure plate 6, the first inclined surface 702 is driven to continuously push the protrusion 603 to move toward the outside of the active roller, thereby causing the second tension spring 18 to be further stretched to allow the inner pressure plate 6 to slide elastically toward the outside of the active roller. Among them, the protrusion 603 is located in the middle of the two guide columns 604 to improve the force balance of the inner pressure plate 6.

[0056] Among them, the outer edge of the first locking block 602 close to the first grinding block 601 is chamfered so that the flange 10 can move more smoothly from the first grinding block 601 to the first locking block 602. At the same time, the outer edge of the second locking block 901 away from the second grinding block 902 is also chamfered so that the flange 10 can slide smoothly to the second locking block 901.

[0057] In this embodiment, the outer extrusion member also includes a sliding table 9, and at least two telescopic rods 1401 are fixedly connected between the sliding table 9 and the inner wall of the fixed ring 3, one end of the telescopic rod 1401 is fixedly connected to the sliding table 9, and the other end is fixedly connected to the inner wall of the fixed ring 3, and a first tension spring 14 is sleeved on the telescopic rod 1401, one end of the first tension spring 14 is fixedly connected to the fixed ring 3, and the other end is fixedly connected to the sliding table 9, the second locking block 901 and the second grinding block 902 are both installed on the inner side surface of the sliding table 9, and a second inclined surface 903 is opened on the sliding table 9, and a linkage is installed between the second inclined surface 903 and the pushing table 7, and when the pushing table 7 slides toward the free end of the inner pressure plate 6, the sliding table 9 is pushed downward by the linkage to move the second locking block 901 and the second grinding block 902 inward. Specifically, the sliding table 9 is provided with a plurality of inner holes 904 corresponding to the plurality of telescopic rods 1401 one by one, one end of the telescopic rod 1401 is fixedly connected to the bottom surface of the inner hole 904, and the other end is fixedly connected to the inner circumferential surface of the fixing ring 3. The number of the telescopic rods 1401 is preferably two, and the side surface of the sliding table 9 is provided with two relatively arranged strip grooves 905, and the fixing ring 3 is fixedly provided with a guide plate 302 corresponding to the strip groove 905, and the guide plate 302 is slidably plugged in a one-to-one correspondence with the strip groove 905, and the elastic force of the first tension spring 14 is used to realize the elastic sliding of the sliding table 9, thereby realizing the elastic sliding of the external extrusion member.

[0058] In this embodiment, the linkage includes a push ring 8 located on the outside of the flange 10 and a plurality of guide rails 301 fixedly connected to the fixed ring 3 and arranged circumferentially. A plurality of sliding plates 802 are fixedly installed on the push ring 8 and slidably plugged into the plurality of guide rails 301 in a one-to-one correspondence. The free end of the bottom of the sliding plate 802 is provided with an inclined push surface 8021 that slidably fits with the second inclined surface 903. The pushing platform 7 includes a plurality of extension plates 701 that are fixedly installed and circumferentially arranged. The plurality of extension plates 701 abut against one end of the push ring 8 away from the sliding platform 9. When the pushing platform 7 slides toward the free end of the inner pressure plate 6, the extension plate 701 is driven to push the push ring 8 to slide. The push ring 8 then drives the sliding plate 802 to slide toward the sliding platform 9 so that the inclined push surface 8021 presses down the second inclined surface 903, thereby realizing the movement of the sliding platform 9 toward the outer side surface of the flange 10 so that the second locking block 901 and the second grinding block 902 squeeze the corresponding flange 10.

[0059] Since the extension plate 701 rotates with the push ring 8 while the push ring 8 does not rotate during operation, in order to reduce the wear between the extension plate 701 and the push ring 8, further, a plurality of balls 801 are rollingly embedded in the end of the push ring 8 away from the sliding table 9. The balls 801 protrude from the end surface of the push ring 8, and the extension plate 701 abuts against the balls 801 to achieve abutment with one end of the push ring 8, thereby reducing the friction between the extension plate 701 and the push ring 8.

[0060] Furthermore, multiple flanges 10 are sleeved on multiple inner pressure plates 6, and multiple flanges 10 are butted head to tail. Multiple stepping mechanisms are provided on the push ring 8, and the power output end of the stepping mechanism is butted against the side of the tail flange 10. The stepping mechanism pushes multiple flanges 10 to move axially along the inner pressure plate 6 so that multiple flanges 10 can be polished one by one. The distance that the stepping mechanism pushes the flange 10 to move each time is equal to the axial length of one flange 10.

[0061] The stepping mechanism includes a plurality of servo cylinders 12 arranged circumferentially around the axis of the push ring 8. The servo cylinder 12 can also be replaced by a servo electric cylinder. A push plate 11 abutting against the side of the flange 10 is installed at the power output end of the servo cylinder 12. A plurality of mounting plates 803 corresponding to the plurality of servo cylinders 12 are fixedly installed circumferentially on the inner circumferential surface of the push ring 8. The servo cylinder 12 is fixedly installed on the mounting plate 803. The push plate 11 is driven to move by synchronously starting the plurality of servo cylinders 12, so that the push plate 11 pushes the plurality of flanges 10 to move the axial length of one flange 10, thereby realizing the grinding of the plurality of flanges 10 one by one.

[0062] It can be seen that the present invention, through the setting of the stepping mechanism, can install multiple flanges 10 on the inner pressure plate 6 at one time, and then step the multiple flanges 10 so that the inner and outer circumferential surfaces of the multiple flanges 10 can be polished one by one, thereby avoiding the tedious operation of installing the flanges 10 multiple times and effectively improving work efficiency.

[0063] In this embodiment, a plug rod 4 is installed between the right cylinder 15 and the fixed ring 3. A center hole 1501 is provided at the center of the right cylinder 15, and a plug hole 303 is provided on the fixed ring 3. One end of the plug rod 4 is slidably inserted into the center hole 1501, and the other end is slidably inserted into the plug hole 303. By inserting one end of the plug rod 4 into the center hole 1501 and the other end into the plug hole 303, the plug rod 4 plays multiple roles. First, the plug rod 4 plays a supporting role for one end of the active roller (the other end of the active roller is supported by the left support frame 1), so that both ends of the active roller have support points, thereby improving the stability of the active roller's rotation and ensuring that the active roller is not prone to axial deformation; second, in the process of falling, the polished flange 10 in the prior art has a high falling height, which is easy to cause the flange 10 to collide and be damaged. The insert rod 4 in the present invention plays a role in receiving the polished flange 10, that is, after the polished flange 10 is detached from the inner pressure plate 6, it falls on the insert rod 4, and the height of the insert rod 4 from the top of the inner pressure plate 6 is greatly reduced, so that when the flange 10 falls on the insert rod 4, the impact force on the flange 10 can be greatly reduced, so that the flange 10 is not easily damaged by collision during material cutting; thirdly, after the flange 10 is received by the insert rod 4, it can be neatly arranged along the insert rod 4, which is convenient for sorting and is not easy to cause collision and wear between each other.

[0064] In this embodiment, the second locking block 901 and the second grinding block 902 are both fixedly mounted on the inner side of the sliding platform 9 .

[0065] Second embodiment:

[0066] In this embodiment, the second locking block 901 and the second grinding block 902 are both elastically slidably inserted on the sliding table 9. When the flange 10 is squeezed, the second locking block 901 first abuts against the outer circumference of the flange 10, and then the first grinding block 601 abuts against the inner circumference of the flange 10; similarly, when another flange 10 is squeezed, the second grinding block 902 first abuts against the outer circumference of the flange 10, and then the first locking block 602 abuts against the inner circumference of the flange 10. The specific installation method is: two slide grooves (not shown in the figure) for inserting the second locking block 901 and the second grinding block 902 are opened on the inner side surface of the sliding table 9, and compression springs (not shown in the figure) are fixedly installed between the bottom surface of the slide groove and the second locking block 901 and between the bottom surface of the slide groove and the second grinding block 902, and the elastic force of the compression springs is used to realize the elastic sliding of the second locking block 901 and the second grinding block 902. This method can ensure that the first grinding block 601 and the second locking block 901 can both generate extrusion force on the same flange 10 , and the first locking block 602 and the second grinding block 902 can also both generate extrusion force on the same flange 10 .

[0067] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A flange circumferential surface grinding device, comprising a left support frame (1) and a right support frame (2), characterized in that: It also includes an active roller rotatably mounted on the left support frame (1) and a push platform (7) slidably connected to the active roller, wherein a driving member for driving the push platform (7) to slide is mounted on the active roller, and a plurality of inner pressure plates (6) elastically slidably connected to the active roller are arranged on the outer circumference of the active roller; A fixing ring (3) is fixedly mounted on the right support frame (2), and a plurality of external extrusion members slidably connected to the spring of the fixing ring (3) are arranged circumferentially on the inner side of the fixing ring (3), and the flange (10) is located between the inner pressure plate (6) and the external extrusion member, and the inner pressure plate (6) comprises a first grinding block (601) and a first locking block (602) arranged in sequence axially, and the external extrusion member comprises a second locking block (901) corresponding to the first grinding block (601), and a second grinding block (902) corresponding to the first locking block (602); The plurality of outer extrusion members and the plurality of inner pressure plates (6) are all linked to the push platform (7). During the sliding process of the push platform (7), the plurality of inner pressure plates (6) are driven to slide synchronously toward the outside of the active roller while the plurality of outer extrusion members are driven to slide synchronously toward the inside of the fixed ring (3), so that the first grinding block (601) and the second locking block (901) simultaneously extrude the same flange (10), the first locking block (602) and the second grinding block (902) simultaneously extrude the same flange (10), and the first The friction force between the second locking block (901) and the flange (10) is greater than the friction force between the first grinding block (601) and the flange (10), so that when the active roller rotates, the first grinding block (601) is driven to grind the inner circumferential surface of the flange (10); the friction force between the first locking block (602) and the flange (10) is greater than the friction force between the second grinding block (902) and the flange (10), so that when the active roller rotates, the second grinding block (902) is driven to grind the outer circumferential surface of the flange (10).

2. The flange circumferential surface grinding device according to claim 1, characterized in that: The active roller comprises a left cylinder (5) and a right cylinder (15) which are coaxially arranged, a plurality of horizontal rods (13) are fixedly connected between the left cylinder (5) and the right cylinder (15), the pushing platform (7) is located between the left cylinder (5) and the right cylinder (15), and the plurality of horizontal rods (13) are slidably plugged into the pushing platform (7).

3. The flange circumferential surface grinding device according to claim 2, characterized in that: The left support frame (1) of the driving member comprises a first driving motor (16) fixedly mounted on the end surface of the left cylinder (5), and a screw rod (17) screwed to the center of the pushing platform (7) is connected to the power output end of the first driving motor (16) so that when the first driving motor (16) drives the screw rod (17) to rotate, the pushing platform (7) is driven to slide along the horizontal rod (13).

4. The flange circumferential surface grinding device according to claim 2, characterized in that: The inner pressure plate (6) also includes two guide columns (604) fixedly mounted on the bottom thereof, and guide holes (501) are provided on the left cylinder (5) and the right cylinder (15). The two guide columns (604) on the inner pressure plate (6) are slidably plugged into the guide holes (501) on the left cylinder (5) and the right cylinder (15) in a one-to-one correspondence, and a second tension spring (18) is sleeved on the guide column (604), and one end of the second tension spring (18) is fixedly connected to the inner pressure plate (6), and the other end is fixedly connected to the guide hole (501).

5. The flange circumferential surface grinding device according to claim 1, characterized in that: The inner pressure plate (6) also includes a protrusion (603) fixedly arranged at its bottom, and a plurality of first inclined surfaces (702) corresponding one-to-one to the protrusions (603) on the plurality of inner pressure plates (6) are provided on the circumferential surface of the pushing platform (7), and the protrusions (603) are in sliding contact with the first inclined surfaces (702), and when the pushing platform (7) slides toward the free end of the inner pressure plate (6), the first inclined surface (702) is driven to push the protrusion (603) to drive the inner pressure plate (6) to slide outward.

6. The flange circumferential surface grinding device according to claim 1, characterized in that: The outer extrusion component also includes a sliding table (9), at least two telescopic rods (1401) are fixedly connected between the sliding table (9) and the inner wall of the fixed ring (3), a first tension spring (14) is sleeved on the telescopic rod (1401), one end of the first tension spring (14) is fixedly connected to the fixed ring (3), and the other end is fixedly connected to the sliding table (9), the second locking block (901) and the second grinding block (902) are both installed on the inner side surface of the sliding table (9), the sliding table (9) is provided with a second inclined surface (903), a linkage is installed between the second inclined surface (903) and the pushing table (7), when the pushing table (7) slides toward the free end of the inner pressure plate (6), the sliding table (9) is pushed downward by the linkage to move the second locking block (901) and the second grinding block (902) inward.

7. The flange circumferential surface grinding device according to claim 6, characterized in that: The linkage comprises a push ring (8) located on the outer side of the flange (10) and a plurality of guide rails (301) fixedly connected to the fixed ring (3) and arranged circumferentially; a plurality of sliding plates (802) which are slidably plugged into the plurality of guide rails (301) in a one-to-one correspondence are fixedly mounted on the push ring (8); a free end of the bottom of the sliding plate (802) is provided with an inclined push surface (8021) which is slidably fitted with the second inclined surface (903); the pushing platform (7) comprises a plurality of extension plates (701) which are fixedly mounted and arranged circumferentially; the plurality of extension plates (701) are in contact with one end of the push ring (8) away from the sliding platform (9); when the pushing platform (7) slides toward the free end of the inner pressure plate (6), the extension plate (701) is driven to push the push ring (8) to slide; the push ring (8) then drives the sliding plate (802) to slide toward the sliding platform (9) so that the inclined push surface (8021) presses down the second inclined surface (903).

8. The flange circumferential surface grinding device according to claim 7, characterized in that: A plurality of balls (801) are rollingly embedded in one end of the push ring (8) away from the sliding platform (9), and the balls (801) protrude from the end surface of the push ring (8). The extension plate (701) abuts against one end of the push ring (8) by abutting against the balls (801).

9. The flange circumferential surface grinding device according to claim 7, characterized in that: A plurality of flanges (10) are sleeved on the plurality of inner pressure plates (6), and the plurality of flanges (10) are butted end to end. A plurality of stepping mechanisms are arranged on the push ring (8), and the power output end of the stepping mechanism is butted against the side of the tail flange (10). The stepping mechanism pushes the plurality of flanges (10) to move axially along the inner pressure plate (6) in a stepping manner so that the plurality of flanges (10) can be polished one by one.

10. The flange circumferential surface grinding device according to claim 2, characterized in that: An insertion rod (4) is installed between the right cylinder (15) and the fixed ring (3); a center hole (1501) is provided at the center of the right cylinder (15); a plug hole (303) is provided on the fixed ring (3); one end of the insertion rod (4) is slidably inserted into the center hole (1501) and the other end is slidably inserted into the plug hole (303).

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