Polishing device for inner special-shaped workpiece

Abstract

The utility model discloses a polishing device for an inner special-shaped workpiece, which comprises a rack, a quick-change guide rail jig is arranged on the rack, the quick-change guide rail jig comprises a detachable quick-change seat, and a first inner arc guide rail and a second inner arc guide rail which are matched with the inner special-shaped workpiece are fixed on the quick-change seat. An interval space is formed between the first inner arc guide rail and the second inner arc guide rail, a liftable pressing block is arranged above the interval space, and an arc-shaped groove penetrating up and down is machined in the first 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 can ascend and descend; and the inner arc grinding mechanism comprises a grinding wheel assembly located below the interval space, 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 pressing block to conduct grinding machining on the inner special-shaped workpiece passing through the interval space. 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 device for internally 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 steps of disassembly, clamping, loading and unloading waste a lot of manpower and time, slowing down the processing production efficiency.

[0004] In the prior art, 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 internally shaped workpieces. Utility Model Content

[0007] The purpose of the utility model is to solve the problems existing in the prior art, and a grinding device for internal special-shaped workpieces is proposed. The single-bevel positioning and side top structure of the quick-change guide jig can be quickly clamped, 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 device for internal special-shaped workpieces, 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 first inner arc guide rail and a second inner arc guide rail matched with the internal special-shaped workpiece are fixed on the quick-change seat, a spacing space is provided between the first inner arc guide rail and the second inner arc guide rail, a lifting fixed seat is provided above the spacing space, a pressure block is provided at the bottom of the fixed seat, pressure strips are provided on both sides of the fixed seat, an arc groove penetrating from top to bottom is processed on the first inner arc guide rail, the quick-change seat is installed on the second vertical plate, and the second 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 inner arc grinding mechanism includes a grinding wheel assembly located below the spacing space, the grinding wheel assembly is fixed on a horizontal displacement assembly, the horizontal displacement assembly is liftably mounted on a third vertical plate, the third vertical plate is fixed on a frame, and the grinding wheel of the grinding wheel assembly cooperates with a pressing block to grind the inner special-shaped workpiece passing through the spacing space.

[0011] Furthermore, the first inner arc guide rail and the second inner arc guide rail as described above are respectively installed on the first transition block and the second transition block, T-blocks are processed under the first transition block and the second transition block, and T-slots matching the T-blocks are processed on the quick-change seat.

[0012] Furthermore, the quick change seat as described above includes a first quick change seat fixed with a first transition block and a second quick change seat fixed with a second transition block, the first quick change seat is installed on the first support seat, the second quick change seat is installed on the second support seat, and the first support seat and the second support seat are both fixed on the second vertical plate.

[0013] 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.

[0014] 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.

[0015] 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.

[0016] Furthermore, the horizontal displacement assembly as described above includes an adjustment seat, a sixth motor and a sixth screw assembly driven by the sixth motor at a reduced speed are installed in the cavity of the adjustment seat, and a sixth nut seat of the sixth screw assembly is connected to the bottom of the grinding wheel assembly.

[0017] Furthermore, the grinding wheel of the grinding wheel assembly as described above is driven by the eighth motor, the eighth motor is fixed on the mounting seat, the eighth slider is connected under the mounting seat, the eighth slider is slidably arranged on the eighth linear guide rail, the eighth linear guide rail is fixed on the adjusting seat, the sixth nut seat is connected under the mounting seat, and the sixth nut seat is mounted on the sixth screw rod.

[0018] Furthermore, the adjustment seat as described above is installed on the third slide plate, the third slide plate is fixed on the third nut seat, the third nut seat is mounted on the third screw rod, the third screw rod is driven after being reduced in speed by the fifth motor, the fifth motor is installed on one side of the third vertical plate, and a second linear guide is provided on the other side of the third vertical plate, a second slider is slidably provided on the second linear guide, and the second slider is connected to the third slide plate.

[0019] Furthermore, a seventh motor is installed on the third vertical plate as described above, and the seventh motor is connected to the seventh slide through the seventh screw rod assembly, and the seventh slide is connected to the seventh slider, and the seventh slider is slidably arranged on the second linear guide rail, and a positioning block is installed on the seventh slide, and a fixed seat is fixed on the positioning block, and a pressure block is arranged at the bottom of the fixed seat, and the bottom of the pressure block cooperates with the internal special-shaped workpiece.

[0020] Compared with the prior art, the beneficial effects of the utility model are as follows: the internal special-shaped workpieces of the device are processed in the form of an assembly line, one after another without stopping, without the need for loading and unloading, disassembly, clamping and positioning in the middle, and the single-bevel positioning and side top structure of the quick-change guide jig can be quickly clamped, 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 feeding mechanism of the utility model;

[0025] Figure 5 for Figure 4 Explosion diagram of

[0026] Figure 6 It is a schematic diagram of the quick-change guide rail jig of the utility model;

[0027] Figure 7 for Figure 6 Explosion diagram of

[0028] Figure 8 It is a schematic diagram of the inner arc grinding mechanism of the utility model;

[0029] Fig. 9 for Figure 8 Schematic diagram of the explosion.

[0030] In the figure: 10, the first vertical plate; 11, the first linear guide; 12, the first motor; 13, the second motor; 14, the first slide; 15, the third motor; 16, the upper rubber wheel; 17, the lower rubber wheel; 18, the second screw rod; 19, the first screw rod; 2, the quick-change guide rail fixture; 20, the second vertical plate; 21, the positioning block; 22, the fixed seat; 23, the first pressure strip; 24, the pressure block; 25, the first inner arc guide; 26, the first transition block; 27, the first quick-change seat; 28, the first support seat; 29, the second support seat; 30, the third vertical plate; 31, the fifth motor; 32, the third screw rod; 33, the second linear guide; 34, the third slide; 35, the sixth motor; 36, the adjustment seat; 37, the grinding wheel assembly; 38, the seventh slide; 39, the seventh motor; 4, the inner special-shaped workpiece; 5, the frame; 6, the waste oil box; 7, the conveyor belt adjustment plate. DETAILED DESCRIPTION

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] Embodiment 1

[0036] Reference Figure 1-9As shown, a grinding device for an inner special-shaped workpiece of the utility model comprises a frame 5, on which a quick-change guide rail jig 2 is installed, and the quick-change guide rail jig 2 comprises a detachable quick-change seat, on which a first inner arc guide rail 25 and a second inner arc guide rail matching the inner special-shaped workpiece 4 are fixed, and a spacing space is provided between the first inner arc guide rail 25 and the second inner arc guide rail, and a liftable fixed seat 22 is provided above the spacing space, a pressure block 24 is provided at the bottom of the fixed seat 22, and pressure strips are provided on both sides of the fixed seat 22, and an arc groove that passes through from top to bottom is processed on the first inner arc guide rail 25, and the quick-change seat is installed on the second vertical plate 20, and the second vertical plate 20 is fixed on the frame 5; a feeding mechanism, the feeding mechanism The material mechanism includes an upper rubber wheel 16 and a lower rubber wheel 17 located above and below the arc groove. The upper rubber wheel 16 and the lower rubber wheel 17 rotate in opposite directions and exert a forward conveying force on the inner special-shaped workpiece 4 passing through the arc groove. The upper rubber wheel 16 and the lower rubber wheel 17 can be installed on the first vertical plate 10 in a liftable manner, and the first vertical plate 10 is fixed on the frame 5; the inner arc grinding mechanism, the inner arc grinding mechanism includes a grinding wheel assembly 37 located below the spacing space, the grinding wheel assembly 37 is fixed on the horizontal displacement assembly, the horizontal displacement assembly can be installed on the third vertical plate 30 in a liftable manner, and the third vertical plate 30 is fixed on the frame 5. The grinding wheel of the grinding wheel assembly 37 cooperates with the pressing block 24 to grind the inner special-shaped workpiece 4 passing through the spacing space.

[0037] The internal special-shaped workpiece 4 to be processed by this device is a tile-shaped one, and its inner and outer arcs, shaft height, chord width, chamfers, etc. need to be ground. Since the internal special-shaped workpiece 4 (hereinafter referred to as the workpiece) is made of powder sintering and has the characteristics of high brittleness and many hidden cracks, it is easy to break or crack during production and processing. Because the grinding method is an assembly line processing, the grinding efficiency is increased by conveying a number of workpieces in a straight line in sequence while the grinding wheel shaft does not move, so it is necessary to grind the inner arc surface first and then use the inner arc guide rail to fit the inner arc surface. In this way, there is enough support contact surface to share the pressure on the workpiece during the outer arc grinding process, so that the grinding amount can be increased, and this can be repeated to improve the production cycle and increase production efficiency.

[0038] Embodiment 2

[0039] Reference Figure 1-9 As shown, based on the technical solution of the first embodiment, a grinding device for internally shaped workpieces, for the specific structural design of the quick-change guide rail jig 2, as shown in FIG. Figure 6-7As shown, the first inner arc guide rail 25 and the second inner arc guide rail are respectively installed on the first transition block 26 and the second transition block, and the first transition block 26 and the second transition block are both processed with T-blocks below, and the quick-change seat is processed with a T-slot that matches the T-block, and a screw hole is processed on one side of the T-slot and connected with a bolt to abut the T-block, and can be quickly clamped and fixed by using its single inclined surface positioning and side top structure. In addition, the quick-change seat includes a first quick-change seat 27 fixed with the first transition block 26 and a second quick-change seat fixed with the second transition block, the first quick-change seat 27 is installed on the first support seat 28, and the second quick-change seat is installed on the second support seat 29, and the first support seat 28 and the second support seat 29 are both fixed on the second vertical plate 20.

[0040] Taking the second vertical plate 20 as a reference, the first support seat 28 and the second support seat 29 are installed on the second vertical plate 20, and then the first quick-change seat 27 and the second quick-change seat are installed on the first support seat 28 and the second support seat 29. The first transition block 26 and the second transition block are divided into two parts, and the T-block single bevel is pressed against the corresponding T-slot single bevel of the first quick-change seat 27 and the second quick-change seat by tightening the bolt handle. The first inner arc guide rail 25 and the second inner arc guide rail can be pre-installed on the corresponding first transition block 26 and the second transition block respectively. In this way, the quick-change guide rail jig 2 can be quickly replaced when changing to grind different workpieces, thereby improving the replacement efficiency. The inner special-shaped workpiece is transported forward in a line and pushed upward by the grinding wheel for grinding. At this time, the pressure strip will limit some workpieces to prevent them from moving. Because the workpieces are easily warped when they are pushed up one by one, the pressure strip can prevent this phenomenon. That is, the first pressure strip 23 and the second pressure strip are respectively fixed on both sides of the pressure block 24, the pressure block 24 is installed on the fixed seat 22, and then fixed on the positioning block 21 as a whole. The positioning block 21 is connected to the seventh slide plate 38 for lifting and moving, as described below for details.

[0041] Embodiment 3

[0042] Reference Figure 1-9 As shown, based on the technical solution of the second embodiment, a grinding device for internally shaped workpieces, for the specific structural design of the feeding mechanism, as shown in FIG. Figure 4-5As shown, the upper rubber wheel 16 is driven to rise and fall by the first screw assembly, and the lower rubber wheel 17 is driven to rise and fall by the second screw assembly, and the first screw assembly and the second screw 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 14, and the lower rubber wheel 17 is driven by the fourth motor after deceleration, and the fourth motor is installed on the second slide. In addition, the first screw assembly includes a first motor 12 and a first screw 19 driven by the first motor 12 after deceleration, and the first screw 19 is equipped with a first nut seat, and the first slide 14 is installed on the first nut seat; the second screw assembly includes a second motor 13 and a second screw 18 driven by the second motor 13 after deceleration, and the second screw 18 is equipped with a second nut seat, and the second slide 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 plurality of first linear guides 11, and the first slide 14 and the second slide are respectively connected with corresponding first sliders.

[0043] The first vertical plate 10 is fixed to the main body and the Z-axis column of the frame 5 through the bottom column fixing plate and the top feeding top plate. 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 17 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 rods are controlled by the corresponding motors to automatically move up and down and brake, etc. The walking accuracy and flatness of the two slides are guaranteed by the first linear guide 11 and its corresponding first slider.

[0044] Embodiment 4

[0045] Reference Figure 1-9 As shown, based on the technical solution of the third embodiment, a grinding device for an inner special-shaped workpiece, for the specific structural design of the inner arc grinding mechanism, as shown in FIG. Figure 8-9As shown, the horizontal displacement assembly includes an adjustment seat 36, a sixth motor 35 and a sixth screw assembly driven by the sixth motor 35 at a reduced speed are installed in the cavity of the adjustment seat 36, and the sixth nut seat of the sixth screw assembly is connected to the bottom of the grinding wheel assembly 37. Specifically, the grinding wheel of the grinding wheel assembly 37 is driven by the eighth motor, the eighth motor is fixed on the mounting seat, the mounting seat is connected to the eighth slider, the eighth slider is slidably arranged on the eighth linear guide, the eighth linear guide is fixed on the adjustment seat 36, the mounting seat is connected to the sixth nut seat below, and the sixth nut seat is sleeved on the sixth screw. Further, the adjustment seat 36 is installed on the third slide 34, the third slide 34 is fixed on the third nut seat, the third nut seat is sleeved on the third screw 32, the third screw 32 is driven by the fifth motor 31 after the speed is reduced, the fifth motor 31 is installed on one side of the third vertical plate 30, the other side of the third vertical plate 30 is provided with a second linear guide 33, the second linear guide 33 is slidably provided with a second slider, and the second slider is connected to the third slide 34. In addition, a seventh motor 39 is installed on the third vertical plate 30, and the seventh motor 39 is connected to the seventh slide plate 38 through the seventh screw rod assembly, and the seventh slide plate 38 is connected to the seventh slider, and the seventh slider is slidably arranged on the second linear guide rail 33. A positioning block 21 is installed on the seventh slide plate 38, and a fixed seat 22 is fixed on the positioning block 21. A pressure block 24 is arranged at the bottom of the fixed seat 22, and the bottom of the pressure block 24 cooperates with the inner special-shaped workpiece 4.

[0046] The third screw rod 32 is installed on the servo motor seat, and the third screw rod 32, the fifth motor 31 and the planetary reducer are fixed by a coupling. The servo motor seat is fixed on one side of the third vertical plate 30. The main shaft of the grinding wheel is fixed on the mounting seat through the main shaft seat. The grinding wheel is made of diamond and is mounted on the main shaft seat through a flange fixture. The mounting seat is slidably connected to the eighth linear guide rail, which is mounted on the adjustment seat 36 and connected to the mounting seat and the sixth screw rod through the sixth nut seat. The main shaft part of the grinding wheel is driven by the sixth motor 35 and its reducer to move forward and backward for fine adjustment, and the center is automatically adjusted. The spindle seat part is fixed on the third slide plate 34 and then slidably arranged on the second linear guide rail 33. At the same time, the seventh slide plate 38 is also installed on the second linear guide rail 33, which can ensure that the height adjustment walking accuracy of the positioning block 21 and the grinding wheel is highly unified. The seventh screw rod assembly is fixed on the seventh slide plate 38, and the seventh motor 39 and its reducer are fixed on the top of the third vertical plate 30 through the motor seat. The second linear guide rail 33 is fixed on the other side of the third vertical plate 30, and then the spindle part of the grinding wheel and the third screw rod 32 are connected through the third nut seat to control the up and down movement of the grinding wheel.

[0047] The working principle of the device of the utility model is as follows: the frame 5 is a frame structure, and a waste oil box 6 and a waste water tank are provided at the bottom of the frame 5, which are used for component lubrication and grinding and flushing. A conveyor belt adjustment plate 7 is provided on one end of the frame 5, and a conveyor belt is installed on the conveyor belt adjustment plate 7. The inner special-shaped workpiece 4 is conveyed from the conveyor belt entrance to the first inner arc guide rail 25 of the quick-change guide rail jig 2, and then the feeding mechanism automatically controls the upper rubber wheel 16 and the lower rubber wheel 17 to move toward the workpiece through the motor, thereby pressing the workpiece on the first inner arc guide rail 25 and pushing the workpiece forward for transportation. Because the workpieces are arranged one by one, and there is a double-end face grinder in front to grind the high surface of the shaft, this kind of assembly line processing mode can be formed. When the workpiece passes through the grinding wheel for fine grinding of the inner arc, the diamond grinding wheel is used for shaping grinding. The pressing block 24 is directly above the grinding wheel, so that the workpiece passing under the pressing block 24 can be pressed tightly and not jump upward when the grinding wheel pushes the workpiece upward for grinding, thereby achieving the process of fine grinding of the inner arc. The pressing block 24 is also provided with a flushing groove to facilitate the removal of the processing heat and processing chips of the workpiece, thereby solving the problem of product breakage and material jamming caused by sintering process defects during the grinding process. The lifting mechanism and displacement adjustment mechanism are all driven by servo motors and linear guides for movement accuracy control, and the repeated positioning accuracy reaches the micron level. The grinding wheel adopts an electric spindle for rotation control, and each vertical plate adopts 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 in detail here. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above embodiment, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model.

Claims

1. A grinding device for internally shaped workpieces, comprising a frame (5), characterized in that: A quick-change guide rail jig (2) is installed on the frame (5), and the quick-change guide rail jig (2) includes a detachable quick-change seat, and a first inner arc guide rail (25) and a second inner arc guide rail that match the inner special-shaped workpiece (4) are fixed on the quick-change seat, and a spacing space is provided between the first inner arc guide rail (25) and the second inner arc guide rail, and a liftable fixed seat (22) is provided above the spacing space, a pressure block (24) is provided at the bottom of the fixed seat (22), and pressure strips are provided on both sides of the fixed seat (22), and an arc groove that passes through from top to bottom is processed on the first inner arc guide rail (25), and the quick-change seat is installed on the second vertical plate (20), and the second vertical plate (20) is fixed on the frame (5); A feeding mechanism, the feeding mechanism comprising an upper rubber wheel (16) and a lower rubber wheel (17) located above and below the arc-shaped groove, the upper rubber wheel (16) and the lower rubber wheel (17) are both escalably mounted on the first vertical plate (10), and the first vertical plate (10) is fixed on the frame (5); The inner arc grinding mechanism comprises a grinding wheel assembly (37) located below the spacing space, the grinding wheel assembly (37) is fixed on a horizontal displacement assembly, the horizontal displacement assembly is movably mounted on a third vertical plate (30), the third vertical plate (30) is fixed on a frame (5), and the grinding wheel of the grinding wheel assembly (37) cooperates with a pressing block (24) to grind the inner special-shaped workpiece (4) passing through the spacing space.

2. A grinding device for internally shaped workpieces according to claim 1, characterized in that: The first inner arc guide rail (25) and the second inner arc guide rail are respectively mounted on the first transition block (26) and the second transition block. T-blocks are processed below the first transition block (26) and the second transition block, and a T-slot matching the T-block is processed on the quick-change seat.

3. A grinding device for internally shaped workpieces according to claim 2, characterized in that: The quick-change seat comprises a first quick-change seat (27) fixed with a first transition block (26) and a second quick-change seat fixed with a second transition block. The first quick-change seat (27) is mounted on a first support seat (28), and the second quick-change seat is mounted on a second support seat (29). Both the first support seat (28) and the second support seat (29) are fixed on a second vertical plate (20).

4. The grinding device for internally shaped workpieces according to claim 1, characterized in that: The upper rubber wheel (16) is driven to rise and fall by a first screw rod assembly, and the lower rubber wheel (17) 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).

5. The grinding device for internally shaped workpieces according to claim 4, characterized in that: The upper rubber wheel (16) is driven after being decelerated by a third motor (15), the third motor (15) being mounted on the first slide plate (14), and the lower rubber wheel (17) is driven after being decelerated by a fourth motor, the fourth motor being mounted on the second slide plate.

6. The grinding device for internally shaped workpieces according to claim 5, 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 being mounted on the first screw rod (19), and a first slide plate (14) being 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 being mounted on the second screw rod (18), and a second slide plate being mounted on the second nut seat; a first linear guide rail (11) being fixed on the first vertical plate (10), a plurality of first slide blocks being slidably mounted on the first linear guide rail (11), and the first slide plate (14) and the second slide plate being respectively connected to corresponding first slide blocks.

7. The grinding device for internally shaped workpieces according to claim 1, characterized in that: The horizontal displacement assembly comprises an adjustment seat (36), a sixth motor (35) and a sixth screw assembly driven by the sixth motor (35) at a reduced speed are installed in the cavity of the adjustment seat (36), and a sixth nut seat of the sixth screw assembly is connected to the bottom of the grinding wheel assembly (37).

8. The grinding device for internally shaped workpieces according to claim 7, characterized in that: The grinding wheel of the grinding wheel assembly (37) is driven by an eighth motor, the eighth motor is fixed on a mounting seat, an eighth slider is connected below the mounting seat, the eighth slider is slidably arranged on an eighth linear guide rail, the eighth linear guide rail is fixed on an adjustment seat (36), a sixth nut seat is connected below the mounting seat, and the sixth nut seat is sleeved on a sixth screw rod.

9. The grinding device for internally shaped workpieces according to claim 8, characterized in that: The adjustment seat (36) is installed on the third slide plate (34), the third slide plate (34) is fixed on the third nut seat, the third nut seat is sleeved on the third screw rod (32), the third screw rod (32) is driven after the speed is reduced by the fifth motor (31), the fifth motor (31) is installed on one side of the third vertical plate (30), the other side of the third vertical plate (30) is provided with a second linear guide rail (33), the second linear guide rail (33) is slidably provided with a second slider, and the second slider is connected to the third slide plate (34).

10. The grinding device for internally shaped workpieces according to claim 9, characterized in that: The third vertical plate (30) is also equipped with a seventh motor (39), the seventh motor (39) is connected to the seventh slide plate (38) through a seventh screw rod assembly, the seventh slide plate (38) is connected to the seventh slider, the seventh slider is slidably arranged on the second linear guide rail (33), the seventh slide plate (38) is equipped with a positioning block (21), a fixed seat (22) is fixed on the positioning block (21), a pressure block (24) is arranged at the bottom of the fixed seat (22), and the bottom of the pressure block (24) cooperates with the inner special-shaped workpiece (4).

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