CN118809339A - A precision grinding device for automobile parts - Google Patents

Abstract

The invention relates to the technical field of automobile part grinding, in particular to an automobile part precise grinding device, which comprises: the supporting table, the propping lock locking driving mechanism and the grinding mechanism. Two guide wheels in the grinding mechanism are matched with two grinding wheels, so that the two grinding wheels are matched with the two guide wheels when the two-way grinding processing is carried out on the brake disc in the rotation process of the brake disc, the stability of two ends and two faces of the brake disc is maintained, the brake disc is prevented from shaking or swaying due to unbalanced stress in the grinding process, the grinding stability and the grinding quality of the brake disc are improved, the two grinding wheels simultaneously grind the brake disc, the problem that the single-face grinding force of the brake disc is unstable is avoided, and the grinding efficiency of the brake disc is also improved.

Description

A precision grinding device for automobile parts

Technical Field

The invention relates to the technical field of automobile parts grinding, and specifically provides a precision grinding device for automobile parts.

Background Art

The car brake disc is one of the most common parts in a car. The car brake disc is part of the disc brake system. Its main function is to produce friction with the brake pad when the driver steps on the brake pedal, thereby slowing down or stopping the rotation of the wheel.

When the car brake disc is unevenly worn during use, it will cause the vehicle to vibrate or the steering wheel to shake when the car brakes. At this time, the brake disc needs to be removed and ground. After grinding, the brake disc surface will be restored to a smooth surface, uneven wear will be eliminated, the contact quality between the brake pad and the brake disc will be improved, the braking effect will be improved, and the noise and vibration during braking will be reduced.

However, currently when grinding the brake disc, the brake disc is fixed and then driven to rotate, and the grinding wheel grinds one side of the brake disc, and the grinding wheel is located at one end of the diameter of the brake disc. As a result, the brake disc shakes or trembles during the grinding process due to the unstable single-sided grinding mechanics, which affects the stability of the brake disc grinding and reduces the brake disc grinding quality. In addition, only one side of the brake disc is ground at a time, which greatly reduces the grinding efficiency of the brake disc.

Summary of the invention

In view of the above problems, an embodiment of the present application provides a precision grinding device for automobile parts to solve the technical problems in the related art.

In order to achieve the above-mentioned purpose, the embodiment of the present application provides the following technical solutions: a precision grinding device for automobile parts, comprising: a support table, a supporting platform is installed in the middle of the upper end surface of the support table, a fixing seat 1 and a fixing seat 2 arranged along its length direction are installed on the upper end surface of the support table, and a locking and fixing drive mechanism is arranged between the fixing seat 1 and the fixing seat 2 to fix the brake disc and drive the brake disc to rotate along the axis of the brake disc.

The locking and fixing driving mechanism includes a fixed seat with a rotating shaft rotatably connected thereto, a rotating driving source for driving the rotating shaft to rotate is arranged on the fixed seat, a fixing ring is fixedly sleeved on the rotating shaft, the fixing ring is slidably connected to a plurality of plug rods evenly arranged along its circumference away from the side wall of the fixed seat, the plug rods correspond to the plug holes one by one, the plug rods slide radially along the fixing ring, a supporting driving group for driving the plug rods to slide is installed on the rotating shaft, a convex cover is rotatably connected to the fixed seat two through the pressing driving group, the large diameter section of the convex cover faces the rotating shaft, and the convex cover is coaxial with the rotating shaft, and the inner wall of the end of the large diameter section of the convex cover is provided with an inclined surface for tightly fitting with the brake disc.

In a possible implementation, the vertical cross-section of the retaining ring is a 匚-shaped structure with an opening toward the second fixing seat, and the end of the retaining ring away from the first fixing seat is an arc-shaped surface.

A grinding mechanism for grinding the two end surfaces of the brake disc is arranged on the top of the support platform, and the grinding mechanism includes two support seats that are slidably connected to the top of the support platform and symmetrically arranged along its length direction. The support platform is located between the two support seats, and each support seat is provided with a guide wheel and a grinder. The grinder is provided with a grinding wheel. The guide wheel and the grinding wheel are arranged along the length direction of the support seat and are located on both sides of the axis of the rotating shaft. The support seat is provided with a transmission group that drives the guide wheel and the grinder to move synchronously along the radial direction of the brake disc, an adjustment drive group that drives the two support seats to slide along the length direction of the support platform is provided between the fixed seat one and the fixed seat two, and a moving drive group that drives the two transmission groups to work simultaneously is provided on the support platform.

In one possible implementation, the support drive group includes a mounting groove provided at an end of the rotating shaft away from the fixed seat, an L-shaped groove connected to the mounting groove is provided on the supporting ring, an insertion rod is slidingly connected to a section of the L-shaped groove parallel to the axis of the rotating shaft, and a connecting rod is slidingly connected to a section of the L-shaped groove perpendicular to the rotating shaft, the connecting rod is connected to the insertion rod, the connecting rod is inserted into the mounting groove and is rollingly connected with a ball, the connecting rod is connected to the side wall of the mounting groove by a reset spring, a movable shaft concentric with the rotating shaft is slidably installed in the mounting groove, a conical column is fixedly sleeved on the movable shaft, the diameter of the conical column gradually decreases from a side close to the fixed seat two to a side close to the fixed seat one, and the movable shaft slides through one end of the rotating shaft close to the fixed seat two.

In one possible implementation, the pressure driving group includes a sleeve fixedly installed on the top of the second fixed seat, and the sleeve is slidably connected to a Z-shaped seat on the side facing the first fixed seat, the upper horizontal section of the Z-shaped seat is slidably inserted into the inner wall of the sleeve, and a hydraulic cylinder with a telescopic end connected to the Z-shaped seat is installed in the sleeve, and the end face of the small diameter section of the convex cover is rotatably connected to the vertical section of the Z-shaped seat through a connecting shaft, and a support positioning assembly that cooperates with the movable shaft is arranged on the connecting shaft, the bottom of the lower horizontal section of the Z-shaped seat is located above the corresponding support seat, and the lower horizontal section of the Z-shaped seat is in rolling contact with the top of the support seat through a rotatably connected anti-friction roller, and the Z-shaped seat is provided with a support assembly for guiding and supporting two fixed columns connected to the support seat below it.

In one possible implementation, the support positioning assembly includes a receiving groove opened on the connecting shaft and connected to the convex cover, and the receiving groove extends to the horizontal section of the Z-shaped seat, and a resistance plate is installed in the receiving groove through a resistance spring rod, and the resistance plate is concentric with the movable shaft.

In one possible implementation, the transmission group includes two receiving grooves opened in the support seat near the side wall of the supporting platform and symmetrically arranged up and down, the middle part of the support seat is vertically rotatably connected with a transmission shaft, the upper and lower ends of the transmission shaft extend into the upper and lower receiving grooves, the transmission shaft fixing sleeve is provided with transmission gears arranged up and down and respectively located in the two receiving grooves, the receiving groove located on the upper side is provided with a guide groove that passes through the top of the support seat and is symmetrically arranged along the length direction of the support seat, a fixed column is slidably connected to the guide groove, the guide wheel and the grinder on the same support seat are respectively connected to the two fixed columns, the guide wheel is rotatably connected to the corresponding fixed column, the grinder is fixedly connected to the corresponding fixed column, the lower end of the fixed column is inserted into the receiving groove on the upper side and then slidably connected to the receiving groove and a transmission rack is installed, the two transmission racks are meshed with the transmission gear located on the upper side for transmission, and a sliding rack meshed with the transmission gear is slidably connected in the receiving groove on the lower side.

In a possible implementation, the side walls of the fixing column are installed with symmetrically arranged baffles, and the side walls of the guide groove are opened with symmetrically arranged storage grooves, and the baffles are slidably inserted into the storage grooves.

In one possible implementation, the mobile drive group includes a through groove opened in the middle of the support platform and running through both sides of the width direction of the support platform, an I-shaped plate that is I-shaped when viewed from above is slidably connected to the through groove, and driving plates are slidably connected to the openings on both sides of the I-shaped plate, and the driving plates are fixedly connected to the corresponding sliding racks. The I-shaped plate drives the sliding rack to slide along the length direction of the support seat through the driving plate, and a screw is rotatably connected in the through groove, and the screw and the I-shaped plate are connected by threaded cooperation, and one end of the screw rotates to pass through the support platform.

In one possible implementation, the support assembly has multiple slots opened on two fixed columns on the support seat close to the fixed seat two, and the multiple slots are arranged from top to bottom along a side of the fixed column away from the fixed seat one, and a plurality of plug plates are installed on both sides of the vertical section of the Z-shaped seat arranged along its width direction, and the plug plates correspond to the slots one by one.

In one possible implementation, a guide group is arranged between the two fixed columns on the support seat adjacent to the fixed seat one, and the guide group includes an inverted L-shaped frame installed on one side close to the fixed seat two, and the vertical section of the inverted L-shaped frame is rotatably sleeved on the rotating shaft, and the bottom of the vertical section of the inverted L-shaped frame is located above the support seat below it, and the bottom of the inverted L-shaped frame is also in rolling contact with the support seat through a friction-reducing roller, and the vertical section of the inverted L-shaped frame is provided with displacement grooves arranged from top to bottom, and plug-in plates corresponding to the displacement grooves are installed on the corresponding two fixed columns.

In one possible implementation, the adjustment drive group includes a screw rotatably connected between fixed seat one and fixed seat two, the middle part of the screw is rotatably connected to the support platform, the screw is connected to the two support seats by threaded cooperation, and the two support seats are driven to move and feed by the rotation of the screw.

The above one or more technical solutions in the embodiments of the present invention have at least one of the following beneficial effects: 1. A precision grinding device for automobile parts designed by the present invention cooperates with two grinding wheels through the two guide wheels in the grinding mechanism, so that the two grinding wheels cooperate with the two guide wheels when performing bidirectional grinding on the brake disc during the rotation of the brake disc, thereby maintaining the stability of the two ends and two surfaces of the brake disc, preventing the brake disc from shaking or swaying due to unbalanced force during the grinding process, thereby improving the stability and grinding quality of the brake disc grinding, and the two grinding wheels grind the brake disc at the same time, avoiding the problem of unstable single-sided grinding force on the brake disc, and also improving the efficiency of brake disc grinding.

2. The axial pressing fixation of the convex cover and the retaining ring in the locking and fixing drive mechanism of the present invention and the expansion fixation of multiple plug rods enable the brake disc to be doubly stably fixed, thereby achieving the effect of high-strength and stable fixation of the brake disc, greatly improving the stability of the brake disc fixation, and avoiding the problem of the brake disc being offset due to force during the grinding process, which affects the grinding accuracy of the end face of the brake disc.

3. The fixing seat 1 and the fixing seat 2 of the present invention are respectively plugged into and matched with the support assembly and the corresponding transmission group through the guide group, so as to guide and limit the movement of the grinding wheel and the guide wheel along the radial direction of the brake disc, so that the grinding wheel and the guide wheel can move smoothly, further improving the stability and grinding quality of the brake disc grinding.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

FIG1 is a schematic diagram of the overall three-dimensional structure of the present invention.

FIG. 2 is a schematic diagram of a partial three-dimensional structure of the grinding mechanism and the locking and fixing driving mechanism of the present invention.

FIG. 3 is a first three-dimensional structural schematic diagram of a brake disc.

FIG. 4 is a second three-dimensional structural schematic diagram of the brake disc.

FIG. 5 is a main cross-sectional view of FIG. 1 of the present invention.

FIG. 6 is an enlarged view of point A in FIG. 5 of the present invention.

FIG. 7 is a schematic diagram of a top view of a partial structure of a transmission group and a mobile drive group of the present invention.

FIG8 is a schematic diagram of a top view and cross-sectional structure of the support seat, baffle plate and fixing column of the present invention.

Figure numerals: 1, support platform; 2, support platform; 3, fixed seat 1; 30, guide group; 310, inverted L-shaped frame; 311, displacement groove; 312, plug-in board; 4, fixed seat 2; 5, locking and fixing drive mechanism; 50, rotating shaft; 51, fixing ring; 52, plug rod; 53, supporting drive group; 530, mounting groove; 531, L-shaped groove; 532, connecting rod; 533, reset spring; 534, moving shaft; 535, conical column; 54, pressing drive group; 540, sleeve; 541, Z-shaped seat; 542, hydraulic cylinder; 550, storage groove; 551, plate; 552, Push spring rod; 55, convex cover; 560, slot; 561, plug plate; 6, grinding mechanism; 60, support seat; 61, guide wheel; 62, grinder; 620, grinding wheel; 63, transmission group; 630, accommodating groove; 631, transmission shaft; 632, transmission gear; 633, fixed column; 634, transmission rack; 635, sliding rack; 64, adjustment drive group; 65, mobile drive group; 650, through groove; 651, I-shaped plate; 652, driving plate; 653, screw; 660, baffle; 7, brake disc; 70, ring cover; 71, annular disc; 72, socket.

DETAILED DESCRIPTION

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.

In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Referring to Figures 1, 3 and 4, a precision grinding device for automobile parts is used to grind a brake disc 7. The brake disc 7 consists of an annular disc 71 and a ring cover 70 installed on one side thereof concentrically. The ring cover 70 is provided with jacks 72 evenly arranged along its circumference. The side edge of the outer wall of the ring cover 70 away from the annular disc 71 is an inclined surface. The grinding device includes: a support table 1, a supporting table 2 is installed in the middle of the upper end surface of the support table 1, a fixing seat 1 3 and a fixing seat 2 4 arranged along its length direction are installed on the upper end surface of the support table 1, and a locking fixing drive mechanism 5 for fixing the brake disc 7 and driving the brake disc 7 to rotate is arranged between the fixing seat 1 3 and the fixing seat 2 4.

Referring to Figures 1, 2, 5 and 6, the locking and fixing driving mechanism 5 includes a rotating shaft 50 rotatably connected to a fixed seat 3, a motor for driving the rotating shaft 50 to rotate is provided on the fixed seat 3, a fixing ring 51 is fixedly sleeved on the rotating shaft 50, the fixing ring 51 is slidably connected to a plurality of plug rods 52 evenly arranged along its circumference away from the side wall of the fixed seat 3, the plug rods 52 correspond to the insertion holes 72 one by one, the plug rods 52 slide radially along the fixing ring 51, a supporting driving group 53 for driving the plug rods 52 to slide is installed on the rotating shaft 50, a convex cover 55 is rotatably connected to the fixed seat 24 through a pressing driving group 54, the large diameter section of the convex cover 55 faces the rotating shaft 50, and the convex cover 55 is coaxial with the rotating shaft 50, and the inner wall of the end of the large diameter section of the convex cover 55 is provided with an inclined surface that is tightly matched with the annular disk 71.

In the initial state, the distance between the convex cover 55 and the end of the rotating shaft 50 is greater than the thickness of the brake disc 7, so as to facilitate the placement of the brake disc 7. The brake disc 7 is mounted on the free end of the rotating shaft 50, and the ring cover 70 faces the fixed seat 3. At the same time, multiple insertion rods 52 are respectively inserted into multiple insertion holes 72, and the insertion rods 52 cooperate with the insertion holes 72 to achieve a preliminary positioning effect on the brake disc 7, until the retaining ring 51 enters the inner ring of the annular disk 71 and contacts the inner end surface of the ring cover 70, and then the convex cover 55 is pushed to move toward the brake disc 7 by the pressing driving group 54. At the same time, the pressing driving group 54 pushes the supporting driving group 53 to drive the insertion rods 52 to slide radially along the retaining ring 51 until multiple insertion rods 52 move outward and contact with the inner end surface of the ring cover 70. The inner wall of the insertion hole 72 is pressed tightly, so that the center of the brake disc 7 is aligned with the center of the rotating shaft 50, avoiding eccentric rotation of the brake disc 7 during grinding, which affects the grinding accuracy of the brake disc 7. At this time, the convex cover 55 continues to move toward the brake disc 7, and the inner wall slope of the large diameter section end of the convex cover 55 conflicts with the slope of the ring cover 70. At this time, the brake disc 7 is doubly stably fixed by the axial pressing fixation of the convex cover 55 and the retaining ring 51 and the expansion fixing action of multiple insertion rods 52, so that the brake disc 7 is fixed with high strength and stability, which greatly improves the stability of the fixation of the brake disc 7 and avoids the brake disc 7 from being offset by force during the grinding process, which affects the grinding accuracy of the end face of the brake disc 7.

5 and 6 , the vertical cross-section of the retaining ring 51 is a 匚-shaped structure with its opening facing the fixing seat 2 4 , and the end of the retaining ring 51 away from the fixing seat 1 3 is an arc-shaped surface, so that the end of the retaining ring 51 can enter the ring cover 70 easily, while also increasing the contact area between the retaining ring 51 and the brake disc 7 , further improving the stability of the fixation of the brake disc 7 .

Referring to Figures 1 and 5, a grinding mechanism 6 for grinding the two end surfaces of the brake disc 7 is provided on the top of the support platform 1. The grinding mechanism 6 includes two support seats 60 that are slidably connected to the top of the support platform 1 and symmetrically arranged along its length direction. The support platform 2 is located between the two support seats 60. A guide wheel 61 and a grinder 62 are provided on each support seat 60. A grinding wheel 620 is provided on the grinder 62. The guide wheel 61 and the grinding wheel 620 are arranged along the length direction of the support seat 60 and are located on both sides of the axis of the rotating shaft 50. A transmission group 63 is provided on the support seat 60 for driving the guide wheel 61 and the grinder 62 to move synchronously along the radial direction of the brake disc 7. An adjustment drive group 64 for driving the two support seats 60 to slide along the length direction of the support platform 1 is provided between the fixed seat 1 3 and the fixed seat 2 4. A moving drive group 65 for driving the two transmission groups 63 to work simultaneously is provided on the support platform 2.

After the brake disc 7 is fixed, when the rotating shaft 50 drives the brake disc 7 to rotate, the two support seats 60 are driven to move toward the support platform 2 by adjusting the driving group 64, thereby driving the two guide wheels 61 and the two grinding wheels 620 to move toward the end faces of the brake disc 7 until the two grinding wheels 620 are in grinding contact with the two end faces of the brake disc 7. The opposite surfaces of the two guide wheels 61 are both rollingly connected with balls. At this time, the balls on the two guide wheels 61 also respectively contact the two end faces of the brake disc 7, so as to provide bidirectional support for the brake disc 7. The guide wheels 61 and the grinding wheels 620 are respectively located in the diameter direction of the brake disc 7. At both ends, so that during the rotation of the brake disc 7, when the two grinding wheels 620 perform bidirectional grinding on the brake disc 7, the two grinding wheels 620 can cooperate with the two guide wheels 61 to maintain the stability of the two ends and two surfaces of the brake disc 7, and prevent the brake disc 7 from shaking or swaying due to unbalanced force during the grinding process, thereby further improving the grinding stability and grinding quality of the brake disc 7. Afterwards, the mobile drive group 65 drives the grinding wheel 620 and the guide wheel 61 to move synchronously along the radial direction of the brake disc 7 through the transmission group 63, so as to comprehensively grind the two end surfaces of the brake disc 7.

Referring to FIGS. 2, 5 and 6, the support driving group 53 includes a mounting groove 530 provided at the end of the rotating shaft 50 away from the fixing seat 3, an L-shaped groove 531 communicating with the mounting groove 530 is provided on the support ring 51, the insertion rod 52 is slidably connected to a section of the L-shaped groove 531 parallel to the axis of the rotating shaft 50, and a connecting rod 532 is slidably connected to a section of the L-shaped groove 531 perpendicular to the rotating shaft 50, the connecting rod 532 is connected to the insertion rod 52, and the connecting rod 532 penetrates A ball is rollingly connected in the mounting groove 530, and the connecting rod 532 is connected to the side wall of the mounting groove 530 by a reset spring 533. A movable shaft 534 concentric with the rotating shaft 50 is slidably installed in the mounting groove 530, and a conical column 535 is fixedly sleeved on the movable shaft 534. The diameter of the conical column 535 gradually decreases from the side close to the fixed seat 2 4 to the side close to the fixed seat 1 3, and the movable shaft 534 slides through one end of the rotating shaft 50 close to the fixed seat 2 4.

When the pressing driving group 54 drives the convex cover 55 to move toward the brake disc 7, it first pushes the moving shaft 534 to slide axially along the rotating shaft 50, and the moving shaft 534 drives the conical column 535 to move toward the connecting rod 532. The balls on the connecting rod 532 roll in contact with the side walls of the conical column 535, and the inclined surface of the side walls of the conical column 535 pushes the connecting rod 532 to drive the insertion rod 52 to move radially along the fixing ring 51 until multiple insertion rods 52 expand outward and press against the inner wall of the insertion hole 72, so that the center of the brake disc 7 is aligned with the center of the rotating shaft 50, thereby avoiding eccentric rotation of the brake disc 7 during grinding, which affects the grinding accuracy of the brake disc 7.

Referring to Figures 5 and 6, the pressure driving group 54 includes a sleeve 540 fixedly installed on the top of the fixed seat 24, and the sleeve 540 is slidably connected with a Z-shaped seat 541 on the side facing the fixed seat 1 3. The upper horizontal section of the Z-shaped seat 541 is slidably inserted into the inner wall of the sleeve 540, and a hydraulic cylinder 542 with a telescopic end connected to the Z-shaped seat 541 is installed in the sleeve 540. The end surface of the small diameter section of the convex cover 55 is rotatably connected to the vertical section of the Z-shaped seat 541 through a connecting shaft, and a supporting positioning assembly that cooperates with the movable shaft 534 is provided on the connecting shaft. The bottom of the lower horizontal section of the Z-shaped seat 541 is located above the corresponding support seat 60, and the lower horizontal section of the Z-shaped seat 541 is in rolling contact with the top of the support seat 60 through a rotatably connected anti-friction roller.

Referring to Figure 6, the support positioning assembly includes a receiving groove 550 opened on the connecting shaft and connected to the convex cover 55, and the receiving groove 550 extends to the horizontal section of the Z-shaped seat 541. A resisting plate 551 is installed in the receiving groove 550 through a resisting spring rod 552, and the resisting plate 551 is concentric with the moving shaft 534.

Start the hydraulic cylinder 542, which pushes the Z-shaped seat 541, the connecting shaft and the convex cover 55 to move toward the brake disc 7. During the movement of the convex cover 55, the push plate 551 pushes the movable shaft 534 to move into the installation groove 530 under the elastic support of the push spring rod 552, so that the support drive group 53 pushes the multiple insertion rods 52 to expand outward and press against the inner wall of the insertion hole 72, aligning the center of the circle of the brake disc 7 with the center of the circle of the rotating shaft 50, and then the Z-shaped seat 541 continues to move. At this time, the push plate 551 presses the push spring rod 552 to shrink until the convex cover 55 presses on the ring cover 70 of the brake disc 7, pressing and fixing the brake disc 7. At this time, the lower end of the Z-shaped seat 541 obtains a stable support effect under the support of the support seat 60, further improving the stability of the fixation of the brake disc 7.

Referring to FIGS. 1, 2, 5 and 7, the transmission group 63 includes two receiving grooves 630 which are opened on the side wall of the support seat 60 near the support platform 2 and are symmetrically arranged up and down. The middle part of the support seat 60 is vertically rotatably connected with a transmission shaft 631. The upper and lower ends of the transmission shaft 631 extend into the upper and lower receiving grooves 630. The transmission shaft 631 is fixedly sleeved with a transmission gear 632 which is arranged up and down and is respectively located in the two receiving grooves 630. The receiving groove 630 located on the upper side is provided with a guide groove which runs through the top of the support seat 60 and is symmetrically arranged along the length direction of the support seat 60. The guide groove is connected to the sliding It is connected to a fixed column 633, and the guide wheel 61 and the grinder 62 on the same support seat 60 are respectively connected to the two fixed columns 633, the guide wheel 61 is rotatably connected to the corresponding fixed column 633, and the grinder 62 is fixedly connected to the corresponding fixed column 633. The lower end of the fixed column 633 is inserted into the accommodating groove 630 on the upper side and is slidably connected to the accommodating groove 630 and is installed with a transmission rack 634. The two transmission racks 634 are meshed with the transmission gear 632 on the upper side for transmission, and a sliding rack 635 meshing with the transmission gear 632 is slidably connected in the lower accommodating groove 630.

The mobile driving group 65 drives the two sliding racks 635 to move in the same direction. During the movement, the sliding rack 635 meshes with the lower transmission gear 632 and drives the transmission shaft 631 to rotate. When the transmission shaft 631 rotates, it drives the upper transmission gear 632 to rotate. The upper transmission gear 632 drives the two fixed columns 633 on the same support seat 60 to move along the radial direction of the brake disc 7 through the meshing transmission with the transmission rack 634, thereby comprehensively grinding the two end faces of the brake disc 7.

1 and 8 , the side walls of the fixed column 633 are installed with symmetrically arranged baffles 660, and the side walls of the guide groove are provided with symmetrically arranged storage grooves, into which the baffles 660 are slidably inserted, thereby preventing the grinding debris of the fixed column 633 from falling into the receiving groove 630 during the movement and being difficult to clean.

Referring to Figures 1, 5 and 7, the mobile driving group 65 includes a through groove 650 opened in the middle of the supporting platform 2 and running through both sides of the width direction thereof. An I-shaped plate 651 which is I-shaped when viewed from above is slidably connected to the through groove 650. Driving plates 652 are slidably connected to the openings on both sides of the I-shaped plate 651. The driving plates 652 are fixedly connected to the corresponding sliding racks 635. The I-shaped plate 651 drives the sliding racks 635 to slide along the length direction of the support seat 60 through the driving plates 652. A screw rod 653 is rotatably connected in the through groove 650. The screw rod 653 is connected to the I-shaped plate 651 by threaded cooperation, and one end of the screw rod 653 rotates to run through the supporting platform 2.

The driving plate 652 is always located in the opening of the I-shaped plate 651. When the two support seats 60 move toward the supporting platform 2, the driving plate 652 slides along the I-shaped plate 651. When it is necessary to drive the grinding wheel 620 to move radially along the brake disc 7, the screw 653 is driven to rotate by a driving source (such as a motor). The screw 653 drives the I-shaped plate 651 to slide along the through groove 650 through threaded cooperation. The I-shaped plate 651 drives the sliding rack 635 to move through the driving plate 652, thereby realizing the function of the driving transmission group 63. At the same time, the cooperation of the I-shaped plate 651, the screw 653 and the driving plate 652 can accurately drive the sliding rack 635 to move, thereby improving the accuracy of the grinding wheel 620 in grinding the end surface of the brake disc 7.

1 and 5 , the Z-shaped seat 541 is provided with a support assembly for guiding and supporting two fixed columns 633 connected to the support seat 60 below it, and the support assembly includes a plurality of slots 560, and the slots 560 are opened on the side walls of the two fixed columns 633 on the support seat 60 close to the fixed seat 2 4, and the plurality of slots 560 are arranged from top to bottom along the side of the fixed column 633 away from the fixed seat 1 3, and a plurality of plug plates 561 are installed on both sides of the vertical section of the Z-shaped seat 541 arranged along its width direction, and the plug plates 561 correspond to the slots 560 one by one.

During the movement of the fixed column 633 with the slot 560, the insert plate 561 gradually enters the corresponding slot 560, thereby guiding the movement of the fixed column 633 with the slot 560, improving the stability of the movement of the fixed column 633 with the slot 560, and further improving the stability of the grinding of the brake disc 7 by the grinding wheel 620.

Referring to Figure 1, a guide group 30 is arranged between the fixed seat 3 and two fixed columns 633 on the support seat 60 adjacent thereto, and the guide group 30 includes an inverted L-shaped frame 310 fixed on the fixed seat 3, the vertical section of the inverted L-shaped frame 310 is rotatably sleeved on the rotating shaft 50, the bottom of the vertical section of the inverted L-shaped frame 310 is located above the support seat 60 below it, and the bottom of the inverted L-shaped frame 310 is also in rolling contact with the support seat 60 through a friction-reducing roller, the vertical section of the inverted L-shaped frame 310 is provided with displacement grooves 311 arranged from top to bottom, and the corresponding two fixed columns 633 are equipped with plug-in boards 312 corresponding to the displacement grooves 311 one by one.

The vertical section of the inverted L-shaped frame 310 and the fixed seat 3 simultaneously support and fix the rotating shaft 50, and the horizontal section of the inverted L-shaped frame 310 is supported by the support seat 60 below it, which further improves the stability of the rotating shaft 50 when driving the brake disc 7 to rotate, and when the two fixed columns 633 on the support seat 60 close to the fixed seat 3 move, the plug-in plates 312 on both sides of the fixed columns 633 are inserted into the displacement grooves 311. When the fixed columns 633 move along the length direction of the support seat 60, the plug-in plates 312 slide and cooperate with the displacement grooves 311 to guide and support the movement of the fixed columns 633, further improving the stability of the movement of the fixed columns 633.

Special note: When the plug plate 561 enters the slot 560, it does not contact the side of the slot 560 close to the brake disc 7. When the plug plate 312 is inserted into the displacement groove 311, it does not contact the side of the displacement groove 311 close to the brake disc 7, so that when it is removed later, the drive group 64 is adjusted to first drive the guide wheel 61 and the grinding wheel 620 away from the brake disc 7.

Referring to Figure 5, the adjustment drive group 64 includes a screw rotatably connected between the fixed seat 1 3 and the fixed seat 2 4, the middle part of the screw is rotatably connected to the support platform 2, the screw is connected to the two support seats 60 by threaded cooperation, and the two support seats 60 are driven to move and feed by the rotation of the screw.

During operation, the brake disc 7 is sleeved on the rotating shaft 50 from one end of the rotating shaft 50 away from the fixed seat 3, and then the convex cover 55 is pushed to move toward the brake disc 7 by the pressing drive group 54. At the same time, the pressing drive group 54 pushes the supporting drive group 53 to drive the insertion rod 52 to slide radially along the retaining ring 51 until multiple insertion rods 52 move outward and press against the inner wall of the insertion hole 72, so that the center of the brake disc 7 is aligned with the center of the rotating shaft 50. Then, the convex cover 55 continues to move so that the inclined surface of the inner wall at the end of its large diameter section contacts the inclined surface of the ring cover 70, and the brake disc 7 is pushed and fixed on the retaining ring 51. At this time, the brake disc 7 is doubly stably fixed under the axial pressing fixation of the convex cover 55 and the retaining ring 51 and the expansion fixation of multiple insertion rods 52, so that the brake disc 7 is fixed with high strength and stability.

Then, the two support seats 60 are driven to move toward the supporting platform 2 by adjusting the driving group 64 until the two grinding wheels 620 are in grinding contact with the two end surfaces of the brake disc 7. At this time, the balls on the two guide wheels 61 also respectively contact with the two end surfaces of the brake disc 7, so that during the rotation of the brake disc 7, the two grinding wheels 620 cooperate with the two guide wheels 61 when performing bidirectional grinding on the brake disc 7, thereby maintaining the stability of the two ends and two surfaces of the brake disc 7, preventing the brake disc 7 from shaking or swaying due to unbalanced force during the grinding process, and further improving the grinding stability and grinding quality of the brake disc 7. Afterwards, the mobile driving group 65 drives the grinding wheel 620 and the guide wheel 61 to move synchronously along the radial direction of the brake disc 7 through the transmission group 63, thereby grinding the two end surfaces of the brake disc 7.

After the grinding process is completed, the guide wheel 61 is first driven to separate from the grinding wheel 620 and the surface of the brake disc 7 by adjusting the driving group 64 to prevent the grinding wheel 620 from scratching the surface of the brake disc when moving radially along the brake disc 7. Then, the grinding wheel 620 and the guide wheel 61 are driven to move radially along the brake disc 7 and away from the brake disc 7 by the moving driving group 65. Finally, the locking and fixing driving mechanism 5 drives the convex cover 55 to separate from the brake disc 7, and the brake disc 7 after the grinding process is removed.

In the description of the present invention, it is necessary to understand that the terms "length", "width", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a car spare part precision grinding device which characterized in that includes: the supporting table (1), the bearing table (2) is arranged in the middle of the upper end surface of the supporting table (1), the first fixing seat (3) and the second fixing seat (4) which are distributed along the length direction of the supporting table are arranged on the upper end surface of the supporting table (1), and a locking driving mechanism (5) which is used for fixing the brake disc (7) and driving the brake disc (7) to rotate along the axis of the brake disc (7) is arranged between the first fixing seat (3) and the second fixing seat (4);

The locking supporting and fixing driving mechanism (5) comprises a first fixing seat (3), a rotating shaft (50) is rotatably connected to the first fixing seat (3), a supporting and fixing ring (51) is fixedly sleeved on the rotating shaft (50), a plurality of inserting rods (52) which are uniformly distributed along the circumferential direction of the side wall of the first fixing seat (3) are in sliding connection with the side wall of the first supporting and fixing ring (51), the inserting rods (52) radially slide along the supporting and fixing ring (51), a supporting and supporting driving group (53) for driving the inserting rods (52) to slide is arranged on the rotating shaft (50), a convex cover (55) is rotatably connected to the second fixing seat (4) through a supporting and pressing driving group (54), the large diameter section of the convex cover (55) faces the rotating shaft (50), the convex cover (55) is coaxial with the rotating shaft (50), and an inclined surface which is in abutting fit with a brake disc (7) is arranged on the inner wall of the end part of the large diameter section of the convex cover (55);

The top of brace table (1) is provided with grinding mechanism (6) that grinds brake disc (7) both ends face, grinding mechanism (6) are including sliding connection at the top of brace table (1) and along its length direction symmetrical arrangement's two supporting seats (60), brace table (2) are located between two supporting seats (60), all be provided with leading wheel (61) and grinding machine (62) on every supporting seat (60), be provided with grinding wheel (620) on grinding machine (62), leading wheel (61) and grinding wheel (620) are arranged and are located the both sides of rotation axis (50) axis along supporting seat (60) length direction, be provided with on supporting seat (60) drive leading wheel (61) and grinding machine (62) synchronization along brake disc (7) radial movement's drive group (63), be provided with between fixing base one (3) and fixing base two (4) and drive two supporting seats (60) along the gliding regulation drive group (64) of brace table (1) length direction, be provided with on brace table (2) drive two drive group (65) that drive movement of drive group (63) simultaneously.

2. The precision grinding device for automobile parts according to claim 1, wherein: the transmission group (63) is including seting up two holding tanks (630) that are close to supporting bench (2) lateral wall and upper and lower symmetrical arrangement in supporting bench (60), the middle part perpendicular rotation of supporting bench (60) is connected with transmission shaft (631), upper and lower both ends of transmission shaft (631) extend to upper and lower two holding tanks (630) in, transmission shaft (631) fixed cover is equipped with and arranges from top to bottom and be located transmission gear (632) of two holding tanks (630) respectively, holding tank (630) that are located the upside are setted up and are run through supporting bench (60) top and follow the guide way of supporting bench (60) length direction symmetrical arrangement, sliding connection has fixed column (633) on the guide way, leading wheel (61) and grinding machine (62) on same supporting bench (60) are connected with two fixed column (633) respectively, leading wheel (61) are connected with corresponding fixed column (633) rotation, grinding machine (62) are connected with corresponding fixed column (633) fixed connection, the lower extreme of fixed column (633) is located behind holding tank (630) of upside and holding tank (634) sliding connection with holding tank (634), rack (634) are located the transmission gear (634) and are located the transmission side of sliding connection (634), rack (634) is located the transmission side is meshed with lower rack (630).

3. The precision grinding device for automobile parts according to claim 2, wherein: the supporting driving group (53) comprises a mounting groove (530) formed in one end, far away from the first fixed seat (3), of the rotating shaft (50), an L-shaped groove (531) communicated with the mounting groove (530) is formed in the supporting ring (51), the inserting rod (52) and the L-shaped groove (531) are connected with one section of the axis of the rotating shaft (50) in a sliding mode, one section of the L-shaped groove (531) perpendicular to the rotating shaft (50) is connected with a connecting rod (532) in a sliding mode, the connecting rod (532) is connected with the inserting rod (52) in a connecting rod (532) penetrating mode, balls are connected in the mounting groove (530) in a penetrating mode, the connecting rod (532) is connected with the side wall of the mounting groove (530) through a reset spring (533), a moving shaft (534) concentric with the rotating shaft (50) is fixedly sleeved with the moving shaft (534), the diameter of the conical column (535) gradually decreases from one side, close to the second fixed seat (4), to one side, close to the first fixed seat (3), of the moving shaft (534) in a sliding mode, penetrates through one end, close to the second fixed seat (4), of the rotating shaft (50).

4. A precision grinding apparatus for automotive parts according to claim 3, characterized in that: the pressing driving group (54) comprises a sleeve (540) fixedly installed at the top of a fixed seat II (4), one side of the sleeve (540) facing to the fixed seat I (3) is slidably connected with a Z-shaped seat (541), the upper horizontal section of the Z-shaped seat (541) is slidably connected with the inner wall of the sleeve (540), a hydraulic cylinder (542) with a telescopic end connected with the Z-shaped seat (541) is installed in the sleeve (540), the end face of the small-diameter section of the convex cover (55) is rotatably connected with the vertical section of the Z-shaped seat (541) through a connecting shaft, a supporting and positioning component matched with the movable shaft (534) is arranged on the connecting shaft, the bottom of the lower horizontal section of the Z-shaped seat (541) is located above a corresponding supporting seat (60), the lower horizontal section of the Z-shaped seat (541) is in rolling contact with the top of the supporting seat (60) through a friction reducing roller connected in a rotating mode, and a supporting component for guiding and supporting two fixing columns (633) connected with the supporting seat (60) below the Z-shaped seat (541) is arranged on the Z-shaped seat (541).

5. The precision grinding device for automobile parts according to claim 2, wherein: the movable driving set (65) comprises a through groove (650) which is formed in the middle of the supporting table (2) and penetrates through two sides of the supporting table in the width direction, I-shaped plates (651) which are I-shaped in overlooking view are connected to the through groove (650) in a sliding mode, driving plates (652) are connected to the openings of the two sides of the I-shaped plates (651) in a sliding mode, the driving plates (652) are fixedly connected with corresponding sliding racks (635), the I-shaped plates (651) drive the sliding racks (635) to slide along the length direction of the supporting seat (60) through the driving plates (652), screws (653) are connected to the through groove (650) in a rotating mode, and one ends of the screws (653) are connected to the supporting table (2) in a rotating mode.

6. The precision grinding device for automobile parts according to claim 2, wherein: the novel anti-friction device is characterized in that a guide group (30) is arranged between the first fixing seat (3) and two fixing columns (633) on the supporting seat (60) close to the first fixing seat, the guide group (30) comprises an inverted-L-shaped frame (310) fixed on the first fixing seat (3), a vertical section of the inverted-L-shaped frame (310) is rotationally sleeved on a rotating shaft (50), the bottom of the vertical section of the inverted-L-shaped frame (310) is located above the supporting seat (60) below the supporting seat, the bottom of the inverted-L-shaped frame (310) is also in rolling contact with the supporting seat (60) through antifriction rollers, displacement grooves (311) which are distributed from top to bottom are formed in the vertical section of the inverted-L-shaped frame (310), and plug boards (312) corresponding to the displacement grooves (311) one to one are arranged on the corresponding two fixing columns (633).

7. The precision grinding device for automobile parts according to claim 4, wherein: the supporting and positioning assembly comprises a containing groove (550) which is formed in the connecting shaft and communicated with the convex cover (55), the containing groove (550) extends to the horizontal section of the Z-shaped seat (541), a supporting disc (551) is mounted in the containing groove (550) through a supporting spring rod (552), and the supporting disc (551) is concentric with the moving shaft (534).

8. The precision grinding device for automobile parts according to claim 4, wherein: the support assembly is close to a plurality of slots (560) that two fixed columns (633) on supporting seat (60) of fixing base two (4) were seted up, and a plurality of slots (560) are arranged from the top down along one side that fixing column (633) kept away from fixing base one (3), and a plurality of picture peg (561) are all installed along the both sides that its width direction was arranged to the vertical section of Z shape seat (541), picture peg (561) and slot (560) one-to-one.

9. The precision grinding device for automobile parts according to claim 1, wherein: the vertical section of the supporting and fixing ring (51) is of a 匚 -shaped structure with an opening facing the second fixing seat (4), and the end part of the supporting and fixing ring (51) far away from the first fixing seat (3) is an arc-shaped surface.

10. The precision grinding device for automobile parts according to claim 2, wherein: the side wall of the fixed column (633) is provided with a baffle (660) which is symmetrically arranged, the side wall of the guide groove is provided with a storage groove which is symmetrically arranged, and the baffle (660) is inserted into the storage groove in a sliding mode.