Mechanical seal end face precision grinding device

Abstract

The utility model relates to mechanical processing technical field discloses a kind of mechanical seal end face precision grinding device, including machine body, the top of the machine body equidistant fixed connection has multiple clamping mechanisms, the clamping mechanism is used to clamp, the top of the machine body front and back side equidistant fixed connection has multiple support frames, the outer wall of the support frame is far from the side and is fixedly connected with polishing mechanism, the top of the machine body left and right side is fixedly connected with blowing mechanism, and the blowing mechanism is used to blow slag and collect;The clamping mechanism includes multiple hollow long blocks.In the utility model, by flexible elastic self-adapting fitting workpiece, irregular shape can also be multi-point evenly clamped, after clamping, the polishing mechanism of support frame starts, hydraulic push rod adjusts support long plate height, so that polishing disc touches workpiece end face;Third motor drives polishing disc high-speed rotation, cooperate machine body rotary table slow rotation, complete workpiece end face precision grinding.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a precision grinding device for the end face of a mechanical seal. Background Technology

[0002] A precision grinding device for mechanical seal end faces is a type of equipment used to perform high-precision grinding on the end faces of mechanical seals. Through a specific structure and motion, and with the aid of abrasive, the end faces of mechanical seals are made to meet the required dimensional accuracy, surface roughness, and flatness requirements, thereby ensuring the sealing performance and service life of the mechanical seals.

[0003] Existing grinding devices use a universal chuck to fix the workpiece on a rotary table, which can rotate slowly. The grinding head is controlled by a CNC system to move on the end face of the workpiece for precise grinding. However, for non-circular workpieces (such as square or irregularly shaped seals) or complex structures with bosses or grooves, the clamping force of the universal chuck tends to concentrate in local areas, which can lead to workpiece deformation or unstable clamping (especially for thin-walled parts). Dedicated fixtures need to be customized for specific workpieces, and replacement requires disassembly and recalibration, which is time-consuming and labor-intensive, and cannot be quickly adapted to multi-variety production. Existing technology uses a structure of fixed plate, trapezoidal clamping block, silicone block, limiting groove and sliding groove to allow the fixed plate to slide along the limiting groove to clamp workpieces of different sizes and achieve tight clamping. However, the swing of the trapezoidal clamping block depends on the "passive fit" of the workpiece shape. If the workpiece shape is irregular (such as irregularly shaped parts with bevels), it will result in some clamping blocks having a small contact area with the workpiece, excessive local pressure, and loose contact in other parts. Summary of the Invention

[0004] To overcome the above shortcomings, this utility model provides a precision grinding device for the end face of a mechanical seal, which aims to improve the problem in the prior art where the trapezoidal clamping block passively fits the shape of the workpiece. When facing irregular shapes, this can lead to some clamping blocks having small contact areas and excessive local pressure, while other parts have loose contact.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a precision grinding device for the end face of a mechanical seal, comprising a body, wherein multiple clamping mechanisms are fixedly connected at equal intervals to the top of the body, the clamping mechanisms being used for clamping; multiple support frames are fixedly connected at equal intervals to the front and rear sides of the top of the body; a grinding mechanism is fixedly connected to the outer wall of each support frame on the side furthest from the other; and a blowing mechanism is fixedly connected to the left and right sides of the top of the body, the blowing mechanism being used for blowing away slag for collection; the clamping mechanism comprises multiple hollow long blocks, the multiple hollow long blocks being fixedly connected at equal intervals to the top of the body; a movable long plate is slidably connected to the inner wall of each hollow long block; multiple spring plates are fixedly connected at equal intervals to adjacent sides of the outer wall of each movable long plate; and a driving component is fixedly connected to the right side of the outer wall of each hollow long block.

[0006] As a further description of the above technical solution:

[0007] The drive assembly includes a first motor, which is fixedly connected to the right side of the outer wall of the hollow block. A connecting rod is fixedly connected to the output end of the first motor. Multiple driving bevel gears are fixedly connected at equal intervals to the outer wall of the connecting rod. Driven bevel gears are meshed with the left side of the outer wall of each driving bevel gear. A lead screw is rotatably connected to the middle of the inner wall of the hollow block. The left ends of the outer walls of the multiple driven bevel gears are fixedly connected to the right ends of the outer walls of the lead screw.

[0008] As a further description of the above technical solution:

[0009] The blowing mechanism includes multiple elongated grooved plates, which are respectively fixedly connected to the top left and right sides of the machine body. A cross-shaped slider is slidably connected to the inner wall of each elongated grooved plate. A fan is fixedly connected to the adjacent side of the outer wall of each cross-shaped slider. A battery plate is fixedly connected to the side of the outer wall of each cross-shaped slider that is away from each other. A rolling assembly is fixedly connected to the front side of the outer wall of each elongated grooved plate.

[0010] As a further description of the above technical solution:

[0011] The rolling assembly includes a second motor, which is fixedly connected to the front side of the outer wall of the elongated groove plate. A rotating column is fixedly connected to the output end of the second motor. A connecting rope is fixedly connected to the outer wall of the rotating column. The rear end of the outer wall of the connecting rope is fixedly connected to the front side of the outer wall of the cross-shaped slider. A reset pull strap is fixedly connected to the rear side of the outer wall of the elongated groove plate. The front end of the outer wall of the reset pull strap is fixedly connected to the rear side of the outer wall of the cross-shaped slider.

[0012] As a further description of the above technical solution:

[0013] The grinding mechanism includes hydraulic push rods, which are fixedly connected at equal intervals to the outer wall of the support frame on the side away from each other. A support plate is fixedly connected to the bottom end of the hydraulic push rods, a third motor is fixedly connected to the top of the support plate, and a grinding disc is fixedly connected to the bottom end of the third motor.

[0014] As a further description of the above technical solution:

[0015] The inner wall of the movable long plate is threadedly connected to the outer wall of the lead screw, and hollow blocks are fixedly connected to the right side of the outer wall of the hollow long block.

[0016] As a further description of the above technical solution:

[0017] The top of the machine body is provided with multiple slag troughs at equal intervals, and the top of each slag trough is provided with a U-shaped hollow plate.

[0018] As a further description of the above technical solution:

[0019] Multiple collection drawers are equidistantly slidably connected to the front inner wall of the machine body, and the slag trough is rectangular in shape.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the active bevel gear meshes with the driven bevel gear, driving two opposing lead screws to rotate synchronously, causing the moving long plates inside the hollow long blocks on both sides to slide relative to each other. The spring plates contact the workpiece from both sides and deform elastically, adapting to the workpiece through flexible elasticity. Even irregular shapes can be clamped evenly at multiple points. After clamping, the grinding mechanism of the support frame is activated, and the hydraulic push rod adjusts the height of the support long plate so that the grinding disc contacts the end face of the workpiece. The third motor drives the grinding disc to rotate at high speed, cooperating with the slow rotation of the machine body's rotary table to complete the precision grinding of the workpiece end face.

[0022] 2. In this utility model, during grinding, the blowing mechanism is activated to clean the slag: the second motor drives the column to rotate, winding the connecting rope and pulling the cross-shaped slider forward along the elongated groove plate, stretching the reset pull belt; the motor rotates in the opposite direction, the connecting rope loosens, and the reset pull belt rebounds, causing the slider to move backward. Through the reciprocating motion of the slider, the fan on it forms a reciprocating airflow on both sides of the workpiece, blowing the slag towards the slag trough at the top of the machine body, falling into the rectangular slag trough through the U-shaped hollow plate, and then falling to the collection drawer at the front of the machine body, realizing the centralized collection of slag for easy cleaning. Attached Figure Description

[0023] Figure 1 This is a front view of a precision grinding device for the end face of a mechanical seal proposed in this utility model;

[0024] Figure 2 This is a perspective view of a precision grinding device for the end face of a mechanical seal proposed in this utility model;

[0025] Figure 3 This is a partial structural schematic diagram of a precision grinding device for the end face of a mechanical seal proposed in this utility model;

[0026] Figure 4 This is a partial structural diagram of a precision grinding device for the end face of a mechanical seal proposed in this utility model;

[0027] Figure 5 This is a partial structural exploded view of a precision grinding device for the end face of a mechanical seal proposed in this utility model;

[0028] Figure 6This is an exploded view of the blowing mechanism of a precision grinding device for the end face of a mechanical seal proposed in this utility model;

[0029] Figure 7 This is a diagram illustrating the blowing mechanism of a precision grinding device for the end face of a mechanical seal proposed in this utility model.

[0030] Legend:

[0031] 1. Body; 2. Clamping mechanism; 201. Hollow long block; 202. Moving long plate; 203. Spring plate; 204. Drive assembly; 2041. First motor; 2042. Connecting long rod; 2043. Driving bevel gear; 2044. Driven bevel gear; 2045. Lead screw; 3. Blowing mechanism; 301. Long grooved plate; 302. Cross-shaped slider; 303. Fan; 304. Battery panel; 305. Scrolling assembly; 3051. Second motor; 3052. Connecting rope; 3053. Rotating column; 3054. Reset pull belt; 4. Support frame; 5. Grinding mechanism; 501. Hydraulic push rod; 502. Third motor; 503. Grinding disc; 504. Supporting long plate; 6. Hollow block; 7. Slag trough; 8. U-shaped hollow plate; 9. Collection drawer. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 3 , Figure 4 and Figure 5This utility model provides an embodiment of a precision grinding device for the end face of a mechanical seal, comprising a body 1, with multiple clamping mechanisms 2 fixedly connected at equal intervals to the top of the body 1 for clamping, multiple support frames 4 fixedly connected at equal intervals to the front and rear sides of the top of the body 1, and grinding mechanisms 5 fixedly connected to the outer walls of the support frames 4 on opposite sides, and blowing mechanisms 3 fixedly connected to the left and right sides of the top of the body 1 for blowing away and collecting slag; the clamping mechanism 2 includes multiple hollow long blocks 201, which are fixedly connected at equal intervals to the top of the body 1, with movable long plates 202 slidably connected to the inner walls of the hollow long blocks 201, and multiple spring plates 203 fixedly connected at equal intervals to adjacent sides of the outer walls of the movable long plates 202, and a driving assembly 204 fixedly connected to the right side of the outer walls of the hollow long blocks 201, the driving assembly 204 including a first The first motor 2041 is fixedly connected to the right side of the outer wall of the hollow long block 201. The output end of the first motor 2041 is fixedly connected to the connecting long rod 2042. Multiple active bevel gears 2043 are fixedly connected at equal intervals to the outer wall of the connecting long rod 2042. Driven bevel gears 2044 are meshed with the left side of the outer wall of each active bevel gear 2043. A lead screw 2045 is rotatably connected to the middle of the inner wall of the hollow long block 201. The left end of the outer wall of the multiple driven bevel gears 2044 is fixedly connected to the right end of the outer wall of the lead screw 2045. The grinding mechanism 5 includes a hydraulic push rod 501. The hydraulic push rod 501 is fixedly connected at equal intervals to the outer wall of the support frame 4 on the side away from each other. The bottom end of the hydraulic push rod 501 is fixedly connected to the support long plate 504. The top of the support long plate 504 is fixedly connected to the third motor 502. The bottom end of the third motor 502 is fixedly connected to the grinding disc 503.

[0034] Specifically, the workpiece to be ground is placed between the clamping mechanisms 2 on the top of the machine body 1 and fixed by the drive assembly 204. After the first motor 2041 is started, it drives the connecting rod 2042 and multiple driving bevel gears 2043 to rotate. The driving bevel gears 2043 mesh with the driven bevel gears 2044 to drive the two lead screws 2045 with opposite directions of rotation to rotate synchronously. The lead screws 2045 respectively drive the movable long plates 202 in the hollow long blocks 201 on both sides to slide relative to each other along the inner wall, so that the spring plates 203 on the adjacent sides of the movable long plates 202 simultaneously contact the workpiece from both sides. The contact generates elastic deformation, and the flexible elasticity of the spring sheet 203 adaptively conforms to the shape of the workpiece. Even when facing irregular shapes, multiple spring sheets 203 can achieve multi-point uniform clamping through independent deformation, avoiding excessive local pressure or loose contact. After clamping, the grinding mechanism 5 on the support frame 4 is activated, and the hydraulic push rod 501 extends and retracts to adjust the height of the support plate 504, so that the grinding disc 503 accurately contacts the end face of the workpiece. The third motor 502 drives the grinding disc 503 to rotate at high speed, which, together with the slow rotation of the rotating table of the machine body 1, performs precision grinding on the end face of the workpiece.

[0035] Reference Figure 2 , Figure 6 and Figure 7 The blowing mechanism 3 includes multiple elongated grooved plates 301, which are fixedly connected to the top left and right sides of the body 1. A cross-shaped slider 302 is slidably connected to the inner wall of each elongated grooved plate 301. A fan 303 is fixedly connected to an adjacent side of the outer wall of each cross-shaped slider 302, and a battery plate 304 is fixedly connected to the opposite side of the outer wall of each cross-shaped slider 302. A winding assembly 305 is fixedly connected to the front side of the outer wall of each elongated grooved plate 301. The winding assembly 305 includes a second motor 3051, which is fixedly connected to... On the front side of the outer wall of the elongated groove plate 301, the output end of the second motor 3051 is fixedly connected to a rotating column 3053. The outer wall of the rotating column 3053 is fixedly connected to a connecting rope 3052. The rear end of the outer wall of the connecting rope 3052 is fixedly connected to the front side of the outer wall of the cross-shaped slider 302. The rear side of the outer wall of the elongated groove plate 301 is fixedly connected to a reset pull strap 3054. The front end of the outer wall of the reset pull strap 3054 is fixedly connected to the rear side of the outer wall of the cross-shaped slider 302. Multiple slag troughs 7 are equidistantly opened on the top of the machine body 1. Each slag trough 7 is provided with a U-shaped hollow plate 8 on its top.

[0036] Specifically, during the grinding process, the blowing mechanism 3 is activated to clean the slag. The second motor 3051 drives the rotating column 3053 to rotate, winding the connecting rope 3052 and pulling the cross-shaped slider 302 forward along the inner wall of the elongated groove plate 301. At this time, the reset pull belt 3054 is stretched. When the second motor 3051 rotates in the opposite direction, the connecting rope 3052 loosens, and the reset pull belt 3054 rebounds, causing the cross-shaped slider 302 to slide backward. Through the reciprocating motion of the cross-shaped slider 302, the fan 303 on it forms a reciprocating airflow on both sides of the workpiece grinding area, blowing the slag generated during grinding towards the slag trough 7 at the top of the machine body 1. The blown-away slag passes through the U-shaped hollow plate 8 and falls into the rectangular slag trough 7, and then falls into the collection drawer 9 on the front side of the inner wall of the machine body 1 through the slag trough 7, realizing the centralized collection of slag for easy subsequent cleaning.

[0037] Reference Figure 1 , Figure 2 and Figure 3 The inner wall of the movable long plate 202 is threadedly connected to the outer wall of the lead screw 2045. Hollow blocks 6 are fixedly connected to the right side of the outer wall of the hollow long block 201. Multiple collection drawers 9 are equidistantly slidably connected to the front side of the inner wall of the machine body 1. The slag trough 7 is rectangular in shape.

[0038] Specifically, the inner wall of the movable long plate 202 is threadedly connected to the outer wall of the lead screw 2045, ensuring that the lead screw 2045 can drive the movable long plate 202 to slide stably when rotating, thereby achieving the clamping action of the workpiece. Hollow blocks 6 are fixedly connected to the right side of the outer wall of the hollow long block 201, providing a base for the installation or support of related components. Multiple collection drawers 9 are equidistantly slidably connected to the front side of the inner wall of the machine body 1. The slag trough 7 is rectangular in shape. The slag generated by grinding is blown by the blowing mechanism 3 to the slag trough 7 at the top of the machine body 1, then passes through the U-shaped hollow plate 8 and falls into the rectangular slag trough 7, and then falls into the collection drawer 9 through the slag trough 7, realizing the centralized collection of slag and facilitating subsequent cleaning.

[0039] Working principle: The workpiece to be ground is placed between the clamping mechanisms 2 on the top of the machine body 1 and fixed by the drive assembly 204. After the first motor 2041 is started, it drives the connecting rod 2042 and multiple driving bevel gears 2043 to rotate. The driving bevel gears 2043 mesh with the driven bevel gears 2044 to drive the two lead screws 2045 with opposite directions of rotation to rotate synchronously. The lead screws 2045 drive the movable long plates 202 in the hollow long blocks 201 on both sides to slide relative to each other along the inner wall, so that the spring plates 203 on the adjacent sides of the movable long plates 202 simultaneously contact the workpiece from both sides. The spring plate 203 adapts to the shape of the workpiece through its flexible elasticity and elastic deformation. Even when facing irregular shapes, it can achieve multi-point uniform clamping through the independent deformation of multiple spring plates 203, avoiding excessive local pressure or loose contact. After clamping, the grinding mechanism 5 on the support frame 4 is activated. The hydraulic push rod 501 extends and retracts to adjust the height of the support plate 504, so that the grinding disc 503 accurately contacts the end face of the workpiece. The third motor 502 drives the grinding disc 503 to rotate at high speed, which, together with the slow rotation of the rotating table of the machine body 1, performs precision grinding on the end face of the workpiece.

[0040] During the grinding process, the blowing mechanism 3 is activated to clean the slag. The second motor 3051 drives the rotating column 3053 to rotate, winding the connecting rope 3052 and pulling the cross-shaped slider 302 to slide forward along the inner wall of the elongated groove plate 301. At this time, the reset pull belt 3054 is stretched. When the second motor 3051 rotates in the opposite direction, the connecting rope 3052 loosens, and the reset pull belt 3054 rebounds, causing the cross-shaped slider 302 to slide backward. Through the reciprocating motion of the cross-shaped slider 302, the fan 303 on it forms a reciprocating airflow on both sides of the workpiece grinding area, blowing the slag generated during grinding towards the slag trough 7 at the top of the machine body 1. The blown-away slag passes through the U-shaped hollow plate 8 and falls into the rectangular slag trough 7, and then falls into the collection drawer 9 on the front side of the inner wall of the machine body 1 through the slag trough 7, realizing the centralized collection of slag for easy subsequent cleaning.

Claims

1. A precision grinding device for the end face of a mechanical seal, comprising a body (1), characterized in that: The top of the machine body (1) is fixedly connected with multiple clamping mechanisms (2) at equal intervals. The clamping mechanisms (2) are used for clamping. The front and rear sides of the top of the machine body (1) are fixedly connected with multiple support frames (4) at equal intervals. The outer walls of the support frames (4) are fixedly connected with grinding mechanisms (5) on the side away from each other. The left and right sides of the top of the machine body (1) are fixedly connected with blowing mechanisms (3). The blowing mechanisms (3) are used to blow away slag for collection. The clamping mechanism (2) includes multiple hollow blocks (201), which are fixedly connected at equal intervals to the top of the body (1). The inner walls of the hollow blocks (201) are slidably connected to movable plates (202). The outer walls of the movable plates (202) are fixedly connected at equal intervals to adjacent sides. The outer walls of the hollow blocks (201) are fixedly connected to drive components (204).

2. The precision grinding device for the end face of a mechanical seal according to claim 1, characterized in that: The drive assembly (204) includes a first motor (2041), which is fixedly connected to the right side of the outer wall of the hollow block (201). The output end of the first motor (2041) is fixedly connected to a connecting rod (2042). Multiple driving bevel gears (2043) are fixedly connected at equal intervals to the outer wall of the connecting rod (2042). Driven bevel gears (2044) are meshed with the left side of the outer wall of each driving bevel gear (2043). A lead screw (2045) is rotatably connected to the middle of the inner wall of the hollow block (201). The left end of the outer wall of each of the multiple driven bevel gears (2044) is fixedly connected to the right end of the outer wall of the lead screw (2045).

3. The precision grinding device for the end face of a mechanical seal according to claim 1, characterized in that: The blowing mechanism (3) includes multiple elongated grooved plates (301), which are fixedly connected to the top left and right sides of the body (1). The inner walls of the elongated grooved plates (301) are slidably connected to cross-shaped sliders (302). The outer walls of the cross-shaped sliders (302) are fixedly connected to adjacent sides. The outer walls of the cross-shaped sliders (302) are fixedly connected to opposite sides. The outer walls of the cross-shaped sliders (302) are fixedly connected to battery panels (304). The front sides of the outer walls of the multiple elongated grooved plates (301) are fixedly connected to rolling components (305).

4. The precision grinding device for the end face of a mechanical seal according to claim 3, characterized in that: The winding assembly (305) includes a second motor (3051), which is fixedly connected to the front side of the outer wall of the elongated groove plate (301). The output end of the second motor (3051) is fixedly connected to a rotating column (3053). A connecting rope (3052) is fixedly connected to the outer wall of the rotating column (3053). The rear end of the outer wall of the connecting rope (3052) is fixedly connected to the front side of the outer wall of the cross-shaped slider (302). A reset pull strap (3054) is fixedly connected to the rear side of the outer wall of the elongated groove plate (301). The front end of the outer wall of the reset pull strap (3054) is fixedly connected to the rear side of the outer wall of the cross-shaped slider (302).

5. The precision grinding device for the end face of a mechanical seal according to claim 1, characterized in that: The grinding mechanism (5) includes a hydraulic push rod (501), which is fixedly connected at equal intervals to the outer wall of the support frame (4) on the side away from each other. The bottom end of the hydraulic push rod (501) is fixedly connected to a support plate (504), the top of the support plate (504) is fixedly connected to a third motor (502), and the bottom end of the third motor (502) is fixedly connected to a grinding disc (503).

6. The precision grinding device for the end face of a mechanical seal according to claim 2, characterized in that: The inner wall of the movable long plate (202) is threadedly connected to the outer wall of the lead screw (2045), and hollow blocks (6) are fixedly connected to the right side of the outer wall of the hollow long block (201).

7. The precision grinding device for the end face of a mechanical seal according to claim 1, characterized in that: The top of the machine body (1) is provided with multiple slag troughs (7) at equal intervals, and the top of each slag trough (7) is provided with a U-shaped hollow plate (8).

8. The precision grinding device for the end face of a mechanical seal according to claim 7, characterized in that: The inner wall of the machine body (1) is equidistantly connected to multiple collection drawers (9), and the slag trough (7) is rectangular in shape.

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