Adaptively adjustable grinding device

Abstract

The utility model discloses a grinding device of adaptable regulation, including main machine bed, be equipped with the grinding assembly of paired setting on main machine bed, still fixed mounting of headstock assembly and tailstock assembly is equipped on main machine bed, and headstock assembly and tailstock assembly are respectively with each grinding assembly adjacent setting, headstock assembly includes head centre, tailstock assembly includes tailstock box and cylinder, and fixed mounting has tailstock sleeve on tailstock box, and tailstock sleeve is equipped with tailstock auxiliary shaft, the end fixed mounting of tailstock sleeve has cylinder, and cylinder is fixedly connected with tailstock auxiliary shaft, and fixed mounting has tail end centre on tailstock auxiliary shaft, and cylinder drives tailstock auxiliary shaft relative tailstock sleeve's axial movement when working, the utility model discloses tailstock assembly whole preservation fixed, and the position of tail end centre is directly regulated through cylinder, and the concentricity of tail end centre and head centre is better, and product machining precision is higher.

Description

Technical Field

[0001] This utility model belongs to the technical field of grinding equipment, specifically relating to an adaptable and adjustable grinding device. Background Technology

[0002] A cylindrical grinding machine is a type of grinding machine used to process the outer surface of cylindrical workpieces. It is mainly used for grinding the outer surface of workpieces and is widely used in industries such as machinery manufacturing, automobiles, aerospace, and precision instruments. It is particularly suitable for processing workpieces with high requirements for precision and surface finish. A patent with publication number CN223211175U discloses an easily replaceable cylindrical grinding machine, including a bed, a worktable, and a headstock. The worktable is mounted on the upper part of the bed, the headstock is slidably connected to the upper part of the worktable, and the tailstock is slidably connected to the upper part of the worktable. A grinding wheel mechanism is mounted on the upper part of the worktable, including a drive mechanism. A differential gear is fixedly connected to the outside of the drive mechanism, and a drive housing is fixedly connected to the outside of the differential gear. A grinding wheel fixing device is fixedly connected to the outside of the drive housing, and the grinding wheel fixing device includes a grinding wheel cover. A drive shaft mechanism is rotatably connected to the inside of the grinding wheel cover. In this disclosed cylindrical grinding machine, the tailstock is slidably connected to the bed. When fixing workpieces with different axial lengths, the position of the tailstock often needs to be adjusted. Because the tailstock needs to move as a whole, the concentricity between the tailstock and the headstock is easily altered after movement. This leads to a decrease in the concentricity between the ejector pins on the tailstock and the headstock, resulting in lower machining accuracy. Therefore, it is necessary to design an adaptable and adjustable grinding device to overcome these difficulties. Summary of the Invention

[0003] This invention addresses the problems existing in the prior art by designing an adaptable and adjustable grinding device. The tailstock assembly of this invention is kept fixed as a whole, and the position of the tail tip is directly adjusted by a cylinder, resulting in better concentricity between the tail tip and the head tip and higher product processing precision.

[0004] The objective of this invention is achieved through the following technical solution: an adaptable and adjustable grinding device, comprising a main machine tool, on which a pair of grinding components are provided. A headstock assembly and a tailstock assembly are also fixedly mounted on the main machine tool, with the headstock assembly and tailstock assembly respectively arranged adjacent to each of the grinding components. The headstock assembly includes a head tip, and the tailstock assembly includes a tailstock housing and a cylinder. A tailstock sleeve is fixedly mounted on the tailstock housing, and a tailstock sub-shaft is provided inside the tailstock sleeve. A cylinder is fixedly mounted at the end of the tailstock sleeve, and the cylinder is fixedly connected to the tailstock sub-shaft. A tail tip is fixedly mounted on the tailstock sub-shaft, and when the cylinder operates, it drives the tailstock sub-shaft to move axially relative to the tailstock sleeve.

[0005] Preferably, the tailstock assembly further includes a steel sleeve, a support bushing, a ball bearing sleeve, and a spring; the tailstock housing is fixedly mounted on the main machine tool, and the tailstock housing has a sealed chamber for installing the tailstock sleeve; the steel sleeve and the support bushing are tightly fitted inside the tailstock sleeve, the ball bearing sleeve is tightly fitted inside the steel sleeve, the tailstock secondary shaft is slidably installed inside the ball bearing sleeve, and a ball body for sliding is provided between the tailstock secondary shaft and the ball bearing sleeve.

[0006] Preferably, a flange end cover is fixedly installed on the tailstock housing, and the flange end cover is fixedly connected to the tailstock sleeve; a steel sleeve and a support bushing are tightly fitted inside the tailstock sleeve, the steel sleeve and the support bushing are arranged adjacent to each other, and the steel sleeve is arranged adjacent to the flange end cover.

[0007] Preferably, the tailstock sleeve has an annular groove for installing the steel sleeve and the support bushing, and the bottom of the support bushing fits into the bottom of the annular groove; the annular groove has a first through hole communicating with the sealing chamber, and the support bushing has a second through hole, the first through hole and the second through hole being coaxially arranged; the opening end of the sealing chamber is provided with a sealing plug for sealing.

[0008] Preferably, a plurality of first oil seals for sealing are provided between the tailstock sleeve and the tailstock housing, and a second oil seal is provided between the tailstock sleeve and the flange end cover; the end of the tailstock sleeve is sealed to the cylinder.

[0009] Preferably, the tailstock sleeve has an annular step, and the tailstock sub-shaft has a limiting groove; a spring is provided between the annular step and the limiting groove, the spring is in a compressed state and is sleeved on the piston shaft of the cylinder; the piston shaft of the cylinder is fixedly connected to the tailstock sub-shaft.

[0010] Preferably, the ball sleeve is provided with a plurality of positioning holes for mounting the ball body, and the outer contour of the positioning holes is adapted to the outer contour of the ball body; a tailstock sub-shaft is slidably mounted in the ball sleeve.

[0011] The workpiece to be machined is placed between the head center and the tail center. A cylinder moves the tailstock sub-shaft, firmly clamping the workpiece between them. The tailstock sub-shaft is fixedly mounted on the cylinder, and the tail center is fixedly mounted on it, keeping both the tailstock sub-shaft and tail center stationary relative to the tailstock housing. When the head center rotates the workpiece, the workpiece rotates relative to the tail center. Since the tailstock housing remains fixed relative to the main machine tool, only the distance between the tail center and the head center is adjusted, resulting in better concentricity and higher machining accuracy. A steel sleeve and a support bushing are installed inside the tailstock sleeve to limit the radial movement of the ball sleeve and the tailstock sub-shaft, allowing it to move only along the axial direction of the tailstock sleeve. An annular groove facilitates the positioning and installation of the steel sleeve and support bushing. When the cylinder operates, it pushes the tailstock sub-shaft, allowing it to move relative to the ball sleeve. The inclusion of a steel ball body further smooths the movement of the tailstock sub-shaft. By providing a first and second through hole, lubricating oil can be easily added to the sealed chamber, lubricating the tailstock sub-shaft and ball sleeve, allowing the tailstock sub-shaft to slide smoothly. A sealing plug is installed on the sealed chamber to prevent lubricating oil leakage. A spring is installed here to ensure that the tailstock sub-shaft is always under force, so that the tail tip can always hold the workpiece; the tail tip can only disengage from the workpiece when the cylinder retracts. By setting an annular step and a limiting groove, the spring is limited, so that the spring can stably generate elastic force. The cylinder here is an existing standard part, and the cylinder is an adjustable cylinder with an adjustable stroke, and the piston shaft of the cylinder cannot rotate due to the limiting. By setting a first oil seal and a second oil seal, the sealed chamber has better sealing performance, preventing lubricating oil leakage.

[0012] Preferably, the head frame assembly also includes a drive motor, which drives the head tip to rotate when it is working, and the head tip and the tail tip are coaxially arranged.

[0013] Preferably, the grinding assembly includes a first slider and a second slider. The first slider is slidably mounted on the main machine tool; the second slider is slidably mounted on the first slider. The second slider is provided with a grinding wheel for grinding and a first motor. When the first motor is working, it drives the grinding wheel to rotate.

[0014] The first slider is driven by a motor and a lead screw, so that the first slider can move relative to the main machine tool; the second slider is also driven by a motor and a lead screw, so that the second slider can move relative to the first slider.

[0015] Compared with the prior art, the present invention has the following advantages: 1. By setting a sealed chamber, lubricating oil can be added to the sealed chamber, which can greatly improve the lubrication effect; 2. The tailstock housing of the tailstock assembly is fixed to the main machine tool, and only the position of the tail tip is adjusted when processing workpieces with different axial lengths; thus, the tail tip and the head tip have better concentricity and the overall machining accuracy is higher; 3. By setting a ball sleeve and a ball body, the tailstock sub-shaft moves more smoothly. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model; Figure 2 A 3D view of the headframe assembly; Figure 3 A 3D view of the tailstock assembly; Figure 4 This is a diagram showing the internal structure of the tailstock assembly; Figure 5 for Figure 4 A magnified view of a portion of position A in the middle; Figure 6 An exploded view of the internal structure of the tailstock assembly; Figure 7 This is a diagram showing the internal structure of the tailstock sleeve. The markings in the diagram are as follows: 1. Main machine tool; 2. Grinding assembly; 21. First slider; 22. Second slider; 23. Grinding wheel; 24. First motor; 3. Headstock assembly; 31. Head center; 32. Drive motor; 4. Tailstock assembly; 41. Tailstock housing; 42. Cylinder; 43. Tailstock sleeve; 44. Tailstock counterspindle; 45. Tailstock center; 46. Steel sleeve; 47. Support bushing; 48. Ball sleeve; 49. Spring; 410. Sealing chamber; 411. Ball body; 412. Annular groove; 413. First through hole; 414. Second through hole; 415. Annular step; 416. Limiting groove; 417. Positioning hole; 5. Flange end cover; 6. Sealing plug; 7. First oil seal; 8. Second oil seal. Detailed Implementation

[0017] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings: like Figures 1 to 7As shown, this embodiment discloses an adaptable and adjustable grinding device, including a main machine tool 1. The main machine tool 1 is provided with a pair of grinding components 2. The main machine tool 1 is also fixedly installed with a headstock assembly 3 and a tailstock assembly 4. The headstock assembly 3 and the tailstock assembly 4 are respectively arranged adjacent to each of the grinding components 2. The headstock assembly 3 includes a head tip 31. The tailstock assembly 4 includes a tailstock housing 41 and a cylinder 42. A tailstock sleeve 43 is fixedly installed on the tailstock housing 41. A tailstock sub-shaft 44 is provided inside the tailstock sleeve 43. A cylinder 42 is fixedly installed at the end of the tailstock sleeve 43. The cylinder 42 is fixedly connected to the tailstock sub-shaft 44. A tail tip 45 is fixedly installed on the tailstock sub-shaft 44. When the cylinder 42 is working, it drives the tailstock sub-shaft 44 to move axially relative to the tailstock sleeve 43.

[0018] The tailstock assembly 4 further includes a steel sleeve 46, a support bushing 47, a ball bearing sleeve 48, and a spring 49. The tailstock housing 41 is fixedly mounted on the main machine tool 1, and a sealed chamber 410 for mounting the tailstock sleeve 43 is provided inside the tailstock housing 41. The steel sleeve 46 and the support bushing 47 are tightly fitted inside the tailstock sleeve 43, and the ball bearing sleeve 48 is tightly fitted inside the steel sleeve 46. A tailstock sub-shaft 44 is slidably mounted inside the ball bearing sleeve 48, and a ball bearing body 411 for sliding is provided between the tailstock sub-shaft 44 and the ball bearing sleeve 48. A flange end cover 5 is fixedly mounted on the tailstock housing 41, and the flange end cover 5 is fixedly connected to the tailstock sleeve 43. The steel sleeve 46 and the support bushing 47 are tightly fitted inside the tailstock sleeve 43, and the steel sleeve 46 and the support bushing 47 are arranged adjacent to each other. The steel sleeve 46 is arranged adjacent to the flange end cover 5. The tailstock sleeve 43 has an annular groove 412 for installing the steel sleeve 46 and the support bushing 47. The bottom of the support bushing 47 fits snugly against the bottom of the annular groove 412. The annular groove 412 has a first through hole 413 connecting to the sealing chamber 410. The support bushing 47 has a second through hole 414. The first through hole 413 and the second through hole 414 are coaxially arranged. The opening end of the sealing chamber 410 is provided with a sealing plug 6 for sealing. A plurality of first oil seals 7 are provided between the tailstock sleeve 43 and the tailstock housing 41 for sealing. A second oil seal 8 is provided between the tailstock sleeve 43 and the flange end cover 5. The end of the tailstock sleeve 43 is sealed to the cylinder 42.

[0019] The tailstock sleeve 43 has an annular step 415 inside, and the tailstock sub-shaft 44 has a limiting groove 416 inside. A spring 49 is provided between the annular step 415 and the limiting groove 416. The spring 49 is in a compressed state and is sleeved on the piston shaft of the cylinder 42. The piston shaft of the cylinder 42 is fixedly connected to the tailstock sub-shaft 44. The ball sleeve 48 has a plurality of positioning holes 417 for mounting the ball body 411. The outer contour of the positioning holes 417 is adapted to the outer contour of the ball body 411. The tailstock sub-shaft 44 is slidably mounted inside the ball sleeve 48.

[0020] The headstock assembly 3 also includes a drive motor 32, which drives the head tip 31 to rotate when it is working. The head tip 31 and the tail tip 45 are coaxially arranged. The grinding assembly 2 includes a first slider 21 and a second slider 22. The first slider 21 is slidably mounted on the main machine tool 1; the second slider 22 is slidably mounted on the first slider 21. The second slider 22 is provided with a grinding wheel 23 for grinding and a first motor 24. When the first motor 24 is working, it drives the grinding wheel 23 to rotate.

[0021] The specific operation process of this embodiment is as follows: The workpiece to be processed is placed between the head center 31 and the tail center 45. The tailstock sub-shaft 44 is moved by the cylinder 42, so that the workpiece can be firmly clamped between the head center 31 and the tail center 45. The tailstock sub-shaft 44 is fixedly mounted on the cylinder 42, and the tail center 45 is fixedly mounted on the tailstock sub-shaft 44. Thus, the tailstock sub-shaft 44 and the tail center 45 are both stationary relative to the tailstock housing 41. When the head center 31 drives the workpiece to rotate, the workpiece can rotate relative to the tail center 45. Since the tailstock housing 41 is fixed relative to the main machine tool 1, only the distance between the tail center 45 and the head center 31 is adjusted here. This allows the tail center 45 and the head center 31 to have better concentricity and higher processing accuracy. A steel sleeve 46 and a support bushing 47 are set in the tailstock sleeve 43 to limit the radial movement of the ball sleeve 48 and the tailstock sub-shaft 44. Thus, the tailstock sub-shaft 44 can only move along the axial direction of the tailstock sleeve 43. The annular groove 412 facilitates the positioning and installation of the steel sleeve 46 and the support bushing 47. When the cylinder 42 operates, it pushes the tailstock sub-shaft 44, allowing it to move relative to the ball sleeve 48. The steel ball body 411 ensures smoother movement of the tailstock sub-shaft 44. The first through hole 413 and the second through hole 414 facilitate the addition of lubricating oil to the sealed chamber 410, lubricating the tailstock sub-shaft 44 and the ball sleeve 48, ensuring smooth sliding of the tailstock sub-shaft 44. A sealing plug 6 is installed in the sealed chamber 410 to prevent lubricating oil leakage. A spring 49 is installed here to ensure the tailstock sub-shaft 44 is always under force, allowing the tail tip 45 to always hold the workpiece. The tail tip 45 can only disengage from the workpiece when the cylinder 42 retracts. By setting an annular step 415 and a limiting groove 416, the spring 49 is limited, so that the spring 49 can stably generate elastic force. Here, the cylinder 42 is an existing standard part, and the cylinder 42 is an adjustable cylinder with an adjustable stroke. The piston shaft of the cylinder 42 cannot rotate and is limited. By setting the first oil seal 7 and the second oil seal 8, the sealing chamber 410 has better sealing performance, preventing lubricating oil from overflowing. After the workpiece is fixed, the headstock assembly 3 drives the workpiece to rotate; then the grinding assembly 2 approaches the workpiece, so that the surface of the workpiece can be machined.

[0022] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An adaptable and adjustable grinding device, comprising a main machine tool (1), wherein the main machine tool (1) is provided with a pair of grinding components (2), characterized in that, The main machine tool (1) is also fixedly installed with a headstock assembly (3) and a tailstock assembly (4). The headstock assembly (3) and the tailstock assembly (4) are respectively arranged adjacent to each of the grinding components (2). The headstock assembly (3) includes a head tip (31). The tailstock assembly (4) includes a tailstock housing (41) and a cylinder (42). A tailstock sleeve (43) is fixedly installed on the tailstock housing (41). A tailstock sub-shaft (44) is provided inside the tailstock sleeve (43). A cylinder (42) is fixedly installed at the end of the tailstock sleeve (43). The cylinder (42) is fixedly connected to the tailstock sub-shaft (44). A tail tip (45) is fixedly installed on the tailstock sub-shaft (44). When the cylinder (42) works, it drives the tailstock sub-shaft (44) to move axially relative to the tailstock sleeve (43).

2. The adaptable and adjustable grinding device according to claim 1, characterized in that, The tailstock assembly (4) further includes a steel sleeve (46), a support bushing (47), a ball bushing (48), and a spring (49); the tailstock housing (41) is fixedly installed on the main machine tool (1), and a sealed chamber (410) for installing the tailstock sleeve (43) is provided inside the tailstock housing (41); the steel sleeve (46) and the support bushing (47) are tightly fitted inside the tailstock sleeve (43), the ball bushing (48) is tightly fitted inside the steel sleeve (46), the tailstock sub-shaft (44) is slidably installed inside the ball bushing (48), and a ball body (411) for sliding is provided between the tailstock sub-shaft (44) and the ball bushing (48).

3. The adaptable and adjustable grinding device according to claim 2, characterized in that, A flange end cover (5) is fixedly installed on the tailstock housing (41), and the flange end cover (5) is fixedly connected to the tailstock sleeve (43); a steel sleeve (46) and a support bushing (47) are tightly fitted inside the tailstock sleeve (43), the steel sleeve (46) and the support bushing (47) are arranged adjacent to each other, and the steel sleeve (46) is arranged adjacent to the flange end cover (5).

4. The adaptable and adjustable grinding device according to claim 3, characterized in that, The tailstock sleeve (43) is provided with an annular groove (412) for installing the steel sleeve (46) and the support bushing (47). The bottom of the support bushing (47) is fitted to the bottom of the annular groove (412). The annular groove (412) is provided with a first through hole (413) connecting the sealing chamber (410). The support bushing (47) is provided with a second through hole (414). The first through hole (413) and the second through hole (414) are coaxially arranged. The opening end of the sealing chamber (410) is provided with a sealing plug (6) for sealing.

5. The adaptable and adjustable grinding device according to claim 3, characterized in that, A plurality of first oil seals (7) for sealing are provided between the tailstock sleeve (43) and the tailstock housing (41), and a second oil seal (8) is provided between the tailstock sleeve (43) and the flange end cover (5); the end of the tailstock sleeve (43) is sealed to the cylinder (42).

6. The adaptable and adjustable grinding device according to claim 2, characterized in that, The tailstock sleeve (43) is provided with an annular step (415), and the tailstock sub-shaft (44) is provided with a limiting groove (416); a spring (49) is provided between the annular step (415) and the limiting groove (416), the spring (49) is in a compressed state and the spring (49) is sleeved and installed on the piston shaft of the cylinder (42); the piston shaft of the cylinder (42) is fixedly connected to the tailstock sub-shaft (44).

7. The adaptable and adjustable grinding device according to claim 2, characterized in that, The ball sleeve (48) is provided with a plurality of positioning holes (417) for mounting the ball body (411), and the outer contour of the positioning holes (417) is adapted to the outer contour of the ball body (411); a tailstock sub-shaft (44) is slidably mounted in the ball sleeve (48).

8. The adaptable and adjustable grinding device according to claim 1, characterized in that, The head frame assembly (3) also includes a drive motor (32), which drives the head tip (31) to rotate when it is working. The head tip (31) and the tail tip (45) are coaxially arranged.

9. The adaptable and adjustable grinding device according to claim 1, characterized in that, The grinding assembly (2) includes a first slider (21) and a second slider (22). The first slider (21) is slidably mounted on the main machine tool (1). The second slider (22) is slidably mounted on the first slider (21). The second slider (22) is provided with a grinding wheel (23) for grinding and a first motor (24). When the first motor (24) is working, it drives the grinding wheel (23) to rotate.

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