Grinding device for external special-shaped workpiece

Abstract

The utility model discloses a grinding device for an external special-shaped workpiece, which comprises a rack, a quick-change guide rail jig is mounted on the rack, the quick-change guide rail jig comprises a detachable quick-change seat, a third inner arc guide rail matched with the external special-shaped workpiece is fixed on the quick-change seat, and a second inner arc guide rail matched with the external special-shaped workpiece is fixed on the third inner arc guide rail. A receding position is arranged on the third inner arc guide rail, a pressing strip with the adjustable height is arranged above the third inner arc guide rail in a suspended mode, and an arc-shaped groove penetrating up and down is further machined in the third inner arc guide rail. The feeding and feeding mechanism comprises an upper rubber wheel and a lower rubber wheel which are located above and below the arc-shaped groove, and the upper rubber wheel and the lower rubber wheel are installed on the rack in a lifting mode; and the outer arc grinding mechanism comprises a grinding wheel assembly located above the receding position, the grinding wheel assembly is fixed to a horizontal displacement assembly, the horizontal displacement assembly is installed on the rack in a lifting mode, and a grinding wheel of the grinding wheel assembly is matched with the receding position to conduct grinding machining on the passing outer special-shaped workpiece. The quick-change guide rail jig can improve the replacement efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of local improvement design of precision numerically controlled single-station grinders, in particular to a grinding processing device for externally shaped workpieces. Background Art

[0002] At present, special-shaped magnets are widely used in the electromechanical industry at home and abroad. With the continuous improvement of the requirements for electromagnetic industrial products, the precision and size of magnets are also required to be higher and higher. In large-scale production, after the pressing and sintering process, the magnetic tile enters the grinding process. The grinding process of the magnetic tile includes: grinding of the two planes of the chord width and the bottom plane, grinding of the two end surfaces of the shaft length, and rough and fine grinding of the inner and outer arc surfaces.

[0003] The magnet grinders in the prior art perform grinding processing on magnets, and most of them require clamping jigs to clamp and fix a single workpiece for processing. After processing, they are disassembled and then assembled into other single workpieces. The disassembly, clamping, loading and unloading and other steps waste a lot of manpower and time, slowing down the processing production efficiency.

[0004] The patent with the announcement number CN116713862A discloses a through-type tile-shaped magnet grinder, including: a grinder platform; the grinder platform is provided with: an inner arc processing box, in which an inner arc grinding mechanism is installed; a chord width processing box, in which a chord width grinding mechanism is installed; wherein the chord width processing box is arranged in parallel with the inner arc processing box; a guide rail, which horizontally passes through the inner arc processing box and the chord width processing box, and is fixed on the inner wall of the inner arc processing box and the chord width processing box, and the inner arc grinding mechanism and the chord width grinding mechanism are both aligned with the guide rail; a conveyor belt for conveying materials, which is connected to a transmission system, and the end of the conveyor belt is close to the feeding end of the guide rail. The present invention can complete the continuous grinding of the inner arc and rotation width of the tile-shaped magnet on a single grinder by arranging the inner arc processing box and the chord width processing box, reducing the manual transfer steps and improving the processing continuity and processing efficiency.

[0005] In the above technical solution, the inner arc grinding mechanism includes: a grinding wheel 21, which is arranged directly below the guide rail 4; a tooling block 22, which is arranged directly above the grinding wheel 21 and the guide rail 4, and a gap is left between the tooling block 22 and the guide rail 4 for the tile-shaped magnet to pass through; wherein, a notch 23 matching the grinding wheel 21 is arranged on the guide rail 4; and a plurality of sections of pressure strips 10 are arranged directly above the guide rail 4, and the plurality of sections of pressure strips 10 are respectively fixed to the inner wall of the inner arc processing box 2 through pressure strip brackets 11. Since the tooling block, the plurality of sections of pressure strips and the guide rail cannot be flexibly installed and adjusted, they can only be processed for magnets of specific shapes and sizes, which has certain limitations.

[0006] In order to solve one of the above problems, the present application provides a grinding device for special-shaped workpieces. Utility Model Content

[0007] The purpose of the utility model is to solve the problems existing in the prior art, and to propose a grinding processing device for special-shaped workpieces, which can be quickly clamped through the single-bevel positioning and side top structure of the quick-change guide jig, thereby improving the efficiency of quick line change when changing products.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a grinding processing device for an external special-shaped workpiece, comprising a frame, a quick-change guide rail jig is installed on the frame, the quick-change guide rail jig comprises a detachable quick-change seat, a third inner arc guide rail matching the external special-shaped workpiece is fixed on the quick-change seat, a retreat position is provided on the third inner arc guide rail, and a height-adjustable pressure strip is suspended above the third inner arc guide rail, and an arc groove that passes through from top to bottom is also processed on the third inner arc guide rail, the quick-change seat is installed on a fourth vertical plate, and the fourth vertical plate is fixed on the frame;

[0009] A feeding mechanism, the feeding mechanism comprising an upper rubber wheel and a lower rubber wheel located above and below the arc-shaped groove, the upper rubber wheel and the lower rubber wheel are both liftably mounted on the first vertical plate, and the first vertical plate is fixed on the frame;

[0010] The outer arc grinding mechanism includes a grinding wheel assembly located above the retreat position, the grinding wheel assembly is fixed on the horizontal displacement assembly, the horizontal displacement assembly is liftably mounted on the fifth vertical plate, the fifth vertical plate is fixed on the frame, and the grinding wheel of the grinding wheel assembly cooperates with the retreat position to grind the passing external special-shaped workpiece.

[0011] Furthermore, the third inner arc guide rail as described above is installed on the third transition block, a T-block is processed under the third transition block, and a T-slot matching the T-block is processed on the quick-change seat.

[0012] Further, the quick-change seat as described above is a third quick-change seat fixed with a third transition block, the third quick-change seat is installed on a third support seat, and the third support seat is fixed on the fourth vertical plate.

[0013] Furthermore, the retreat position as described above is a plurality of retreat grooves machined on the outer arc surface of the third inner arc guide rail, and a third pressure strip and a fourth pressure strip are suspended above both ends of the retreat position, respectively. A gap is left between the third pressure strip and the fourth pressure strip and matches the shape of the grinding wheel of the grinding wheel assembly. The third pressure strip is connected through the first height adjustment assembly, and the fourth pressure strip is connected through the second height adjustment assembly. The first height adjustment assembly and the second height adjustment assembly are both fixed on the fourth vertical plate.

[0014] Furthermore, the upper rubber wheel as described above is driven to rise and fall by the first screw rod assembly, and the lower rubber wheel is driven to rise and fall by the second screw rod assembly, and both the first screw rod assembly and the second screw rod assembly are mounted on the first vertical plate.

[0015] Furthermore, the upper rubber wheel as described above is driven after being decelerated by a third motor, the third motor is mounted on the first slide plate, and the lower rubber wheel is driven after being decelerated by a fourth motor, the fourth motor is mounted on the second slide plate.

[0016] Furthermore, the first screw rod assembly as described above includes a first motor and a first screw rod driven after the first motor is decelerated, a first nut seat is mounted on the first screw rod, and a first slide plate is installed on the first nut seat; the second screw rod assembly includes a second motor and a second screw rod driven after the second motor is decelerated, a second nut seat is mounted on the second screw rod, and a second slide plate is installed on the second nut seat, a first linear guide rail is fixed to the first vertical plate, a plurality of first sliders are slidably provided on the first linear guide rail, and the first slide plate and the second slide plate are respectively connected to corresponding first sliders.

[0017] Furthermore, the horizontal displacement assembly as described above includes an adjustment seat, a tenth motor and a tenth screw rod assembly driven by the tenth motor at a reduced speed are installed in the cavity of the adjustment seat, and a tenth nut seat of the tenth screw rod assembly is connected to the bottom of the grinding wheel assembly.

[0018] Furthermore, the grinding wheel of the grinding wheel assembly as described above is driven by the eleventh motor, the eleventh motor is fixed on the mounting seat, a sliding plate is connected under the mounting seat, the sliding plate is slidably arranged on the eleventh linear guide rail, the eleventh linear guide rail is fixed on the adjusting seat, the tenth nut seat is connected under the mounting seat, and the tenth nut seat is mounted on the tenth screw rod.

[0019] Furthermore, the adjustment seat as described above is installed on the ninth slide, the ninth slide is fixed on the fifth nut seat, the fifth nut seat is mounted on the fifth screw rod, the fifth screw rod is driven after being slowed down by the ninth motor, the ninth motor is installed on one side of the fifth vertical plate, and a ninth linear guide is provided on the other side of the fifth vertical plate. A ninth slider is slidably provided on the ninth linear guide, and the ninth slider is connected to the ninth slide.

[0020] Compared with the prior art, the beneficial effects of the utility model are as follows: the device adopts the form of an assembly line in the processing of special-shaped workpieces, and processes them one after another non-stop without the need for loading and unloading, disassembling, clamping and positioning in the middle. Combined with the single-bevel positioning and side top structure of the quick-change guide rail jig, it can be clamped quickly, thereby improving the efficiency of quick line change when changing products. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the front view of the utility model;

[0022] Figure 2 It is a side view of the utility model;

[0023] Figure 3 It is a top view of the utility model;

[0024] Figure 4 It is a schematic diagram of the quick-change guide rail jig of the utility model;

[0025] Figure 5 for Figure 4 Explosion diagram of

[0026] Figure 6 It is a schematic diagram of the outer arc grinding mechanism of the utility model;

[0027] Figure 7 for Figure 6 Explosion diagram.

[0028] In the figure: feeding mechanism 110, first vertical plate; 11, first linear guide; 12, first motor; 13, second motor; 14, first slide; 15, third motor; 16, rubber wheel; 18, second screw rod; 19, first screw rod; 4, external special-shaped workpiece; 50, fourth vertical plate; 51, first height adjustment assembly; 52, fourth pressure strip; 53, third inner arc guide; 54, third transition block; 55, third quick-change seat; 56, third support seat; 57, eighth motor; 58, conveyor belt; 60, fifth vertical plate; 61, ninth motor; 62, fifth screw rod; 63, ninth linear guide; 64, ninth slide; 65, tenth motor; 66, adjustment seat; 67, sliding plate; 68, grinding wheel assembly; 7, frame; 8, conveyor belt adjustment plate. DETAILED DESCRIPTION

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the 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 limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected", "set", etc. should be understood in a broad sense. For example, when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be a central element. When an element is considered to be "installed on" another element, it can be directly installed on the other element or there can be a central element. When an element is considered to be "connected" to another element, 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 an indirect connection through an intermediate medium, or it can be a communication between the two elements.

[0031] For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

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

[0033] Embodiment 1

[0034] Reference Figure 1-7 As shown, a grinding processing device for an external special-shaped workpiece of the utility model comprises a frame 7, on which a quick-change guide rail jig 5 is installed, and the quick-change guide rail jig 5 comprises a detachable quick-change seat, on which a third inner arc guide rail 53 matching the external special-shaped workpiece 4 is fixed, a retreat position is provided on the third inner arc guide rail 53, and a height-adjustable pressure strip is suspended above the third inner arc guide rail 53, and an arc groove penetrating from top to bottom is also processed on the third inner arc guide rail 53, the quick-change seat is installed on a fourth vertical plate 50, and the fourth vertical plate 50 is fixed on the frame 7; a feeding mechanism 1, the feeding mechanism 1 comprises a The upper rubber wheel 16 and the lower rubber wheel rotate in opposite directions and exert a forward conveying force on the external special-shaped workpiece 4 passing through the arc groove. The upper rubber wheel 16 and the lower rubber wheel can be installed on the first vertical plate 10 in a liftable manner, and the first vertical plate 10 is fixed on the frame 7; the external arc grinding mechanism 6, the external arc grinding mechanism 6 includes a grinding wheel assembly 68 located above the retreat position, the grinding wheel assembly 68 is fixed on the horizontal displacement assembly, and the horizontal displacement assembly is installed on the fifth vertical plate 60 in a liftable manner, and the fifth vertical plate 60 is fixed on the frame 7. The grinding wheel of the grinding wheel assembly 68 cooperates with the retreat position to grind the external special-shaped workpiece 4 passing through.

[0035] The device is designed to process a special-shaped workpiece 4 (hereinafter referred to as the workpiece) whose overall shape is a tile shape, such as Figure 5 As shown, its inner and outer arcs, shaft height, chord width, chamfers, etc. need to be ground. Since the material is made of powder sintering, it has the characteristics of high brittleness and many dark cracks, and is easy to break or crack during production and processing. The improved grinding method is assembly line processing, which improves the grinding efficiency by moving the workpieces in sequence while the grinding wheel shaft does not move. Therefore, it is necessary to grind the inner arc surface first, and then use the inner arc guide rail to fit the inner arc surface of the workpiece. In this way, the outer arc surface is ground, and there is enough support contact surface to share the pressure on the workpiece, so that the grinding amount can be increased. This is repeated to improve the production cycle and increase production efficiency.

[0036] Embodiment 2

[0037] Reference Figure 1-7 As shown, based on the technical solution of the first embodiment, a grinding device for a special-shaped workpiece, for the specific structure of the quick-change guide rail jig 5, as shown in FIG. Figure 4-5 As shown, the third inner arc guide rail 53 is installed on the third transition block 54, and a T-block is processed under the third transition block 54. A T-slot matching the T-block is processed on the quick-change seat, and a screw hole is processed on one side of the T-slot and a bolt is connected to contact the T-block. The single-bevel positioning and side top structure can be used to quickly clamp and fix. Specifically, the quick-change seat is a third quick-change seat 55 fixed with the third transition block 54, and the third quick-change seat 55 is installed on the third support seat 56, and the third support seat is fixed on the fourth vertical plate 50.

[0038] Furthermore, the retreat position is a plurality of retreat grooves machined on the outer arc surface of the third inner arc guide rail 53, and the retreat grooves are flush with the axial direction of the outer arc surface, leaving a retreat buffer space for the external special-shaped workpiece 4 passing over the retreat position during grinding to avoid the workpiece from breaking. A third pressure strip and a fourth pressure strip 52 are suspended above both ends of the retreat position, respectively, and a gap is left between the third pressure strip and the fourth pressure strip 52 and match the grinding wheel shape of the grinding wheel assembly 68, so that the grinding wheel position can be lowered to contact the outer arc surface of the external special-shaped workpiece 4, and the grinding wheel will not touch the pressure strip. The third pressure strip is connected by a first height adjustment assembly 51, and the fourth pressure strip 52 is connected by a second height adjustment assembly. The first height adjustment assembly 51 and the second height adjustment assembly are both fixed on the fourth vertical plate 50. The two height adjustment assemblies are both composed of a screw and a threaded block. A cross plate and a guide block are fixed on the fourth vertical plate 50. One end of the screw is threadedly connected to the cross plate and the guide block in sequence and then threadedly connected to the threaded block. A pressure strip is fixed at the end of the threaded block.

[0039] With the fourth vertical plate 50 as a reference, the third support seat 56 is installed on the fourth vertical plate 50, and then the third quick-change seat 55 is installed on the third support seat 56. The third transition block 54 is divided into parts and the single bevel of the T-block is pressed against the single bevel of the T-slot of the corresponding third quick-change seat 55 by screwing the handle with bolts. The third inner arc guide rail 53 can be pre-installed on the corresponding third transition block 54, so that when changing to grind different workpieces, the quick-change guide rail jig 5 can be quickly replaced to improve the replacement efficiency. The outer special-shaped workpiece 4 is transported forward in a line and pressed down by the grinding wheel to be ground. At this time, the pressure strip will limit part of the workpiece so that the workpiece does not move. Because the line of the workpiece against each other is easy to warp, the pressure strip can prevent this phenomenon, that is, the third pressure strip and the fourth pressure strip 52 suspended on the third inner arc guide rail 53.

[0040] Embodiment 3

[0041] Reference Figure 1-7 As shown, based on the technical solution of the second embodiment, a grinding device for a special-shaped workpiece, for the specific structure of the feeding mechanism 1, as shown in FIG. Figure 1-3 As shown, the upper rubber wheel 16 is driven to rise and fall by the first screw rod assembly, and the lower rubber wheel is driven to rise and fall by the second screw rod assembly, and the first screw rod assembly and the second screw rod assembly are both installed on the first vertical plate 10. Among them, the upper rubber wheel 16 is driven by the third motor 15 after deceleration, and the third motor 15 is installed on the first slide plate 14, and the lower rubber wheel is driven by the fourth motor after deceleration, and the fourth motor is installed on the second slide plate. In addition, the first screw rod assembly includes a first motor 12 and a first screw rod 19 driven by the first motor 12 after deceleration, and the first screw rod 19 is equipped with a first nut seat, and the first slide plate 14 is installed on the first nut seat; the second screw rod assembly includes a second motor 13 and a second screw rod 18 driven by the second motor 13 after deceleration, and the second screw rod 18 is equipped with a second nut seat, and the second slide plate is installed on the second nut seat. The first vertical plate 10 is fixed with a first linear guide 11, and a plurality of first sliders are slidably provided on the first linear guide 11, and the first slide plate 14 and the second slide plate are respectively connected with corresponding first sliders.

[0042] The first vertical plate 10 is fixed to the main body and Z-axis column of the frame 7 through the column fixing plate at the bottom and the feeding top plate at the top. The first motor 12, the second motor 13 and their corresponding reducers are all installed on the servo motor seat and then installed as a whole on the feeding top plate. The first screw rod 19 and the second screw rod 18 are driven by the coupling to rotate to press the upper rubber wheel 16 and the lower rubber wheel against the workpiece. At the same time, the third motor 15 and the fourth motor and their corresponding reducers respectively drive the axis of the two rubber wheels to rotate to push the workpiece inward to the grinding position. The third motor 15 and its reducer are installed on the first slide 14, and the fourth motor and its reducer are installed on the second slide. The two slides are then connected through the corresponding nut seats. The screw rod is controlled by the corresponding motor to automatically move up and down and brake. The walking accuracy and flatness of the two slides are guaranteed by the first linear guide 11 and its corresponding first slider.

[0043] Embodiment 4

[0044] Reference Figure 1-7 As shown, based on the technical solution of the third embodiment, a grinding device for an externally shaped workpiece, for the specific structural design of the external arc grinding mechanism 6, as shown in FIG. Figure 6-7 As shown, the horizontal displacement assembly includes an adjustment seat 66, the cavity of the adjustment seat 66 is equipped with a tenth motor 65 and a tenth screw assembly driven by the tenth motor 65 at a reduced speed, and the tenth nut seat of the tenth screw assembly is connected to the bottom of the grinding wheel assembly 68. Specifically, the grinding wheel of the grinding wheel assembly 68 is driven by the eleventh motor after the speed is reduced, the eleventh motor is fixed on the mounting seat, the mounting seat is connected with a sliding plate 67, the sliding plate 67 is slidably arranged on the eleventh linear guide rail, the eleventh linear guide rail is fixed on the adjustment seat 66, the mounting seat is connected with a tenth nut seat below, and the tenth nut seat is sleeved on the tenth screw rod. Further, the adjustment seat 66 is mounted on the ninth slide 64, the ninth slide 64 is fixed on the fifth nut seat, the fifth nut seat is sleeved on the fifth screw rod 62, the fifth screw rod 62 is driven by the ninth motor 61 after the speed is reduced, the ninth motor 61 is mounted on one side of the fifth vertical plate 60, the other side of the fifth vertical plate 60 is provided with a ninth linear guide rail 63, the ninth linear guide rail 63 is slidably provided with a ninth slider, and the ninth slider is connected to the ninth slide 64.

[0045] The fifth screw rod 62 is installed on the servo motor seat, and the fifth screw rod 62 and the ninth motor 61 and the matching planetary reducer are fixed by a coupling. The servo motor seat is fixed on one side of the fifth vertical plate 60. The spindle of the grinding wheel is fixed on the sliding plate 67 through the spindle seat. The grinding wheel is made of diamond and is installed on the spindle seat through a flange fixture. The eleventh linear guide is installed on the adjustment seat 66 and the sliding plate 67 and the tenth screw rod are connected through the tenth nut seat. The spindle part is driven by the tenth motor 65 to perform fine adjustment of the forward and backward movement and automatically adjust the center. The spindle seat part is fixed on the ninth slide plate 64 and then slidably set on the ninth linear guide rail 63. The ninth linear guide rail 63 is fixed on the other side of the fifth vertical plate 60, and then the spindle part of the grinding wheel and the fifth screw rod 62 are connected through the fifth nut seat to control the up and down movement of the grinding wheel.

[0046] Working principle: the frame 7 is a frame structure, and a conveyor belt adjustment plate 8 is provided at one end of the frame 7, on which a conveyor belt 58 is installed, wherein a quick-change guide rail fixture is installed on the quick-change part of the guide rail, and the external special-shaped workpiece 4 is fed from the entrance of the conveyor belt 58 to the third inner arc guide rail 53 of the quick-change guide rail fixture by the conveyor belt 58, and then the feeding mechanism 1 automatically controls the upper rubber wheel 16 and the lower rubber wheel to move toward the workpiece through the motor, thereby pressing the workpiece on the third inner arc guide rail 53 and pushing the workpiece forward for transportation. Because the workpieces are one after another, there are processes of grinding the high surface of the shaft by a double-end face grinder and inner arc grinding processes in front, so that this kind of assembly line processing mode can be formed. When the workpiece passes through the grinding wheel for fine grinding of the outer arc, diamond profile grinding is adopted. The pressure strip is on the lower side of the grinding wheel. When the grinding wheel presses down to grind the workpiece, the workpiece passing through the pressure strip can be pressed to prevent the workpiece from jumping up, thereby achieving the process of fine grinding of the outer arc. The pressure strip is provided with a flushing groove to facilitate the removal of the processing heat and processing chips of the workpiece, thereby preventing the workpiece from being broken and stuck due to defects in the sintering process during the grinding process.

[0047] After grinding the inner arc surface of the workpiece, the outer arc surface is positioned based on the inner arc surface to ensure the parallelism and coaxiality of the inner and outer arcs. The quick-change guide fixture needs to be designed according to the size of the workpiece after fine grinding of the inner arc surface. After grinding, the workpiece is transferred from the conveyor belt 58 outlet to the next station grinder for fine grinding of the chord width. The lifting mechanism and displacement adjustment mechanism are all driven by servo motors and linear guides for mobile precision control. The repeated positioning accuracy reaches the micron level. The grinding wheel is controlled by an electric spindle for rotation, and each vertical plate uses castings for vibration absorption and reduction.

[0048] The assembly and matching relationship of the various components involved in the device of the utility model, the motor and the corresponding reducer and its control software, etc. are existing technologies or materials, and the relevant technical personnel can directly purchase or customize them from the market according to the required product models and specifications.

[0049] The electrical components appearing in the text are all connected to an external main controller and 220V mains or industrial electricity, and the main controller can be a conventional known device such as a computer that plays a control role.

[0050] The above is only a preferred specific embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described too much here. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned embodiment, and the utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiment should be regarded as exemplary and non-restrictive. Any technician familiar with the technical field within the technical scope disclosed by the utility model, according to the technical scheme of the utility model and its utility model concept, shall be covered within the protection scope of the utility model.

Claims

1. A grinding device for a special-shaped workpiece, comprising a frame (7), characterized in that: The frame (7) is provided with a quick-change guide rail jig (5), the quick-change guide rail jig (5) comprising a detachable quick-change seat, a third inner arc guide rail (53) matched with the external special-shaped workpiece (4) is fixed on the quick-change seat, a retreat position is provided on the third inner arc guide rail (53), and a height-adjustable pressure strip is suspended above the third inner arc guide rail (53), and an arc groove penetrating from top to bottom is also processed on the third inner arc guide rail (53), the quick-change seat is installed on the fourth vertical plate (50), and the fourth vertical plate (50) is fixed on the frame (7); A feeding mechanism (1), the feeding mechanism (1) comprising an upper rubber wheel (16) and a lower rubber wheel located above and below the arc-shaped groove, the upper rubber wheel (16) and the lower rubber wheel both being liftably mounted on a first vertical plate (10), the first vertical plate (10) being fixed on a frame (7); The outer arc grinding mechanism (6) comprises a grinding wheel assembly (68) located above the retreat position, the grinding wheel assembly (68) is fixed on a horizontal displacement assembly, the horizontal displacement assembly is escalably mounted on a fifth vertical plate (60), the fifth vertical plate (60) is fixed on a frame (7), and the grinding wheel of the grinding wheel assembly (68) cooperates with the retreat position to grind the passing outer special-shaped workpiece (4).

2. The grinding device for a special-shaped workpiece according to claim 1, characterized in that: The third inner arc guide rail (53) is installed on the third transition block (54), a T-block is processed below the third transition block (54), and a T-slot matched with the T-block is processed on the quick-change seat.

3. The grinding device for a special-shaped workpiece according to claim 2, characterized in that: The quick-change seat is a third quick-change seat (55) fixed with a third transition block (54), the third quick-change seat (55) is installed on a third support seat (56), and the third support seat is fixed on the fourth vertical plate (50).

4. The grinding device for a special-shaped workpiece according to claim 3, characterized in that: The retreat position is a plurality of retreat grooves machined on the outer arc surface of the third inner arc guide rail (53), and a third pressure strip and a fourth pressure strip (52) are suspended above the two ends of the retreat position, respectively. A gap is left between the third pressure strip and the fourth pressure strip (52) and matches the grinding wheel shape of the grinding wheel assembly (68). The third pressure strip is connected via a first height adjustment assembly (51), and the fourth pressure strip (52) is connected via a second height adjustment assembly. Both the first height adjustment assembly (51) and the second height adjustment assembly are fixed on the fourth vertical plate (50).

5. The grinding device for a special-shaped workpiece according to claim 1, characterized in that: The upper rubber wheel (16) is driven to rise and fall by a first screw rod (19) assembly, and the lower rubber wheel is driven to rise and fall by a second screw rod assembly. Both the first screw rod assembly and the second screw rod assembly are mounted on the first vertical plate (10).

6. The grinding device for a special-shaped workpiece according to claim 5, characterized in that: The upper rubber wheel (16) is driven after the speed is reduced by the third motor (15), and the third motor (15) is installed on the first slide plate (14). The lower rubber wheel is driven after the speed is reduced by the fourth motor, and the fourth motor is installed on the second slide plate.

7. The grinding device for a special-shaped workpiece according to claim 6, characterized in that: The first screw rod assembly comprises a first motor (12) and a first screw rod (19) driven by the first motor (12) after deceleration, a first nut seat is mounted on the first screw rod (19), and a first slide plate (14) is mounted on the first nut seat; the second screw rod assembly comprises a second motor (13) and a second screw rod (18) driven by the second motor (13) after deceleration, a second nut seat is mounted on the second screw rod (18), and a second slide plate is mounted on the second nut seat; a first linear guide rail (11) is fixed on the first vertical plate (10), a plurality of first slide blocks are slidably arranged on the first linear guide rail (11), and the first slide plate (14) and the second slide plate are respectively connected to corresponding first slide blocks.

8. The grinding device for a special-shaped workpiece according to claim 1, characterized in that: The horizontal displacement assembly comprises an adjustment seat (66), a tenth motor (65) and a tenth screw rod assembly driven by the tenth motor (65) at a reduced speed are installed in the cavity of the adjustment seat (66), and a tenth nut seat of the tenth screw rod assembly is connected to the bottom of the grinding wheel assembly (68).

9. The grinding device for a special-shaped workpiece according to claim 8, characterized in that: The grinding wheel of the grinding wheel assembly (68) is driven after being decelerated by an eleventh motor, the eleventh motor is fixed on a mounting seat, a sliding plate (67) is connected below the mounting seat, the sliding plate (67) is slidably arranged on an eleventh linear guide rail, the eleventh linear guide rail is fixed on an adjustment seat (66), a tenth nut seat is connected below the mounting seat, and the tenth nut seat is sleeved on a tenth screw rod.

10. The grinding device for a special-shaped workpiece according to claim 9, characterized in that: The adjustment seat (66) is installed on the ninth slide plate (64), the ninth slide plate (64) is fixed on the fifth nut seat, the fifth nut seat is sleeved on the fifth screw rod (62), the fifth screw rod (62) is driven after the speed is reduced by the ninth motor (61), the ninth motor (61) is installed on one side of the fifth vertical plate (60), the other side of the fifth vertical plate (60) is provided with a ninth linear guide rail (63), the ninth linear guide rail (63) is slidably provided with a ninth slider, and the ninth slider is connected to the ninth slide plate (64).

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