Tailstock for high-precision grinding machine

Abstract

The application relates to a tailstock for a high-precision grinding machine, which comprises a moving seat installed on a guide rail of the grinding machine, a limiting component arranged on the guide rail to limit the movement of the moving seat, an adjusting seat and an adjusting block arranged on the moving seat, a mounting step arranged on one side of the moving seat, the adjusting block comprising a mounting part and a connecting part which are integrally formed and are provided with a deformation groove between the mounting part and the connecting part, the mounting part being connected with the mounting step and the connecting part being connected with one side of the adjusting seat, a horizontal adjusting component and a height adjusting component being arranged on the moving seat, the horizontal adjusting component being arranged on the other side of the adjusting seat and the height adjusting component being arranged above the adjusting block, a reset component being arranged on the moving seat to reset the other side of the adjusting seat, a driving component being arranged on the adjusting seat to adjust the axial position of a thimble, and the thimble being arranged above the height adjusting component. The application has the effect of improving the debugging efficiency of the grinding machine components.

Description

Technical Field

[0001] This application relates to the field of grinding machine parts technology, and in particular to a tailstock for a high-precision grinding machine. Background Technology

[0002] The tailstock in a grinding machine is a core auxiliary component used in conjunction with the headstock. Its main function is to support the workpiece and ensure its stability and rotational accuracy during grinding. Its primary function is to support one end of shaft-type workpieces, ensuring the workpiece's coaxiality, adapting to workpieces of different lengths, and assisting in clamping and positioning.

[0003] After prolonged use, grinding machines often experience misalignment between the tailstock and headstock. This results in shaft-type parts being machined into frustum shapes. To eliminate this error, the angle of the worktable is typically fine-tuned. However, in form grinding, a wheel dressing device is required to ensure grinding accuracy. Adjusting the worktable angle changes the position of this device, necessitating further wheel readjustment. This process is time-consuming and labor-intensive, and increases the possibility of machining errors, adding to the unreliability and reducing the efficiency of grinding machine component adjustments. Summary of the Invention

[0004] To improve the debugging efficiency of grinding machine components, this application provides a tailstock for a high-precision grinding machine.

[0005] This application provides a technical solution for a tailstock used in a high-precision grinding machine, as follows: A tailstock for a high-precision grinding machine includes a movable seat mounted on a grinding machine guide rail. A limiting component is provided on the guide rail to restrict the movement of the movable seat. The movable seat has an adjusting seat and an adjusting block. A mounting step is provided on one side of the movable seat. The adjusting block includes a mounting portion and a connecting portion, which are integrally formed and have a deformation groove between them. The mounting portion connects to the mounting step, and the connecting portion connects to one side of the adjusting seat. The movable seat has a horizontal adjusting component and a height adjusting component. The horizontal adjusting component is located on the other side of the adjusting seat, and the height adjusting component is located above the adjusting block. The movable seat has a reset component for resetting the other side of the adjusting seat. The adjusting seat has a ejector pin and a drive component for adjusting the axial position of the ejector pin. The ejector pin is located above the height adjusting component. The horizontal adjusting component adjusts the horizontal position of the ejector pin, and the height adjusting component adjusts the height position of the ejector pin.

[0006] Optionally, the drive assembly includes a hydraulic box, a piston rod, a rotating shaft, a drive rod, and a first return spring. The adjusting seat has a hydraulic channel. The piston rod is slidably fitted within the hydraulic channel. The hydraulic box is installed at one end of the hydraulic channel, and the other end of the hydraulic channel is blocked. The first return spring is positioned between the piston rod and the other end of the hydraulic channel. The drive rod is slidably fitted within the adjusting seat. Both the drive rod and the piston rod have toothed grooves on their surfaces. The rotating shaft is vertically rotatably connected to the adjusting seat and located between the drive rod and the piston rod. A transmission gear is connected to the rotating shaft, and the transmission gear meshes between two of the toothed grooves. The ejector pin is installed at the end of the drive rod.

[0007] Optionally, a copper bushing is fitted on the surface of the drive column, and a clearance groove is formed on the surface of the copper bushing. The transmission gear is located in the clearance groove, and several holes are also formed on the surface of the copper bushing, which are filled with graphite.

[0008] Optionally, a fixed cylinder is connected to the adjusting seat, the fixed cylinder is coaxially arranged with the driving column, an adjusting cylinder is threaded onto the fixed cylinder, and an ejector spring is provided between the inner end wall of the adjusting cylinder and the driving column.

[0009] Optionally, the leveling component includes a rotary knob, an adjusting screw, a base plate, and a movable block. An adjusting groove is formed on the bottom wall of the adjusting seat. The base plate is disposed within the adjusting groove and located on the top wall of the movable seat. An adjusting inclined surface is provided on the top wall of the base plate. The movable block is disposed on the base plate and conforms to the adjusting inclined surface. The adjusting screw is rotatably connected to the adjusting seat and threadedly engaged with the movable block. The rotary knob is connected to one end of the adjusting screw. Similarly, the height adjusting component is configured.

[0010] Optionally, the reset assembly includes a limiting bolt and a second reset spring. The limiting bolt passes through the movable seat and the adjusting seat from bottom to top and is threaded into the adjusting seat. The second reset spring is sleeved on the limiting bolt and is located between the movable seat and the limiting bolt.

[0011] Optionally, the limiting component includes a limiting block, a clamping block, and a clamping bolt. The guide rail is configured as a dovetail shape. The limiting block is connected to one side of the movable seat and fits against one side of the guide rail. A limiting step is provided on the other side of the movable seat. One end of the clamping block presses against the bottom wall of the limiting step, and the other end presses against the other side of the guide rail. The clamping bolt passes through the clamping block and the movable seat and is threadedly engaged with the movable seat.

[0012] Optionally, one end of the movable base is provided with an air inlet, which is connected to an external air source, and a plurality of air outlet grooves are provided on the bottom wall of the movable base, with air outlets provided in the air outlet grooves.

[0013] Optionally, a rubber pad is provided between the adjusting seat and the movable seat.

[0014] In summary, this application includes at least one of the following beneficial technical effects: During installation, one end of the shaft-like part is first mounted on the headstock. The drive assembly moves the ejector pin until it presses against the other end of the shaft-like part. To adjust the horizontal direction, the horizontal adjustment assembly moves the other side of the adjustment seat, deforming the adjustment block and moving the ejector pin horizontally to adjust its position. Similarly, to adjust the height, the height leveling assembly raises the adjustment seat, deforming the adjustment block and moving the ejector pin vertically. For reverse adjustment, the horizontal or height adjustment assembly is released, and the reset assembly restores the position of the adjustment seat, returning the deformation of the adjustment block to its initial state, thus achieving the tailstock adjustment effect. By setting up the horizontal adjustment assembly, the height adjustment assembly's adjustment block, and the reset assembly, the horizontal or vertical adjustment of the ejector pin is achieved. Compared to existing technologies, this avoids the need for adjusting the entire worktable, allowing adjustment only on the tailstock, reducing the number of error adjustment steps, minimizing machining errors, and improving the adjustment efficiency of the grinding machine components. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the tailstock in an embodiment of this application.

[0016] Figure 2 This is a schematic diagram of the structure of the limiting component in the embodiments of this application.

[0017] Figure 3 This is a schematic diagram of the structure of the bottom of the movable seat in an embodiment of this application.

[0018] Figure 4 This is a cross-sectional view used to illustrate the structure of the driving component in the embodiments of this application.

[0019] Figure 5 This is an exploded view used in the embodiments of this application to illustrate the structure of the driving component.

[0020] Figure 6 This is an exploded view used in the embodiments of this application to illustrate the structure of the horizontal adjustment component.

[0021] Figure 7 This is a cross-sectional view used to illustrate the structure of the reset component in the embodiments of this application.

[0022] Explanation of reference numerals in the attached drawings: 01, guide rail; 1, movable seat; 11, air inlet; 12, air outlet; 2, limiting component; 21, limiting block; 22, clamping block; 23, clamping bolt; 3, adjusting seat; 31, ejector pin; 32, adjusting cylinder; 33, ejection spring; 34, height adjusting component; 4, drive component; 41, hydraulic box; 42, piston column; 43, rotating shaft; 431, transmission gear; 44, drive column; 441, copper bushing; 45, first return spring; 5, adjusting block; 51, mounting part; 52, connecting part; 53, deformation groove; 6, level adjusting component; 61, rotating knob; 62, adjusting screw; 63, base plate; 64, movable block; 7, return component; 71, limiting bolt; 72, second return spring; 8, rubber pad. Detailed Implementation

[0023] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0024] This application discloses a tailstock for a high-precision grinding machine. (Refer to...) Figure 1 and Figure 2 The tailstock for a high-precision grinding machine includes a movable seat 1 mounted on a grinding machine guide rail 01, which is dovetail-shaped. A limiting component 2 is provided on the movable seat 1, comprising a limiting block 21, a clamping block 22, and a clamping bolt 23. The limiting block 21 is bolted to one side of the bottom wall of the movable seat 1, and fits against one side of the guide rail 01. A limiting step is provided on the other side of the movable seat 1; one end of the clamping block 22 presses against the bottom wall of the limiting step, and the other end fits against the other side of the guide rail. The clamping bolt 23 passes through the clamping block 22 and the movable seat 1, and is threadedly engaged with the movable seat 1.

[0025] When restricted, the position of one side of the movable seat 1 is restricted by the restricting block 21, and the other side of the movable seat 1 is pressed by the cooperation of the abutting block 22 and the guide rail 01, thereby increasing the friction between the movable seat 1 and the guide rail 01 and achieving the effect of restricting the movement of the movable seat 1.

[0026] Reference Figure 2 and Figure 3 One end of the movable base 1 is provided with an air inlet 11, which is connected to an external air source. The bottom wall of the movable base 1 has several air outlet slots, and several air outlets 12 are opened at the air outlet slots. The air inlet 11 is connected to the air outlet 12 through the internal ventilation pipe of the movable base 1.

[0027] When the position of the movable seat 1 needs to be adjusted, the limiting component 2 is released, the air inlet 11 is opened, and the gas quickly expands the air outlet through the air outlet 12 and applies pressure to the guide rail 01. Through the reaction force, the movable seat 1 is slightly lifted, which can push the movable seat 1 to move, so as to achieve the purpose of adjusting the movable seat 1 with less effort.

[0028] Reference Figure 1 , Figure 4 and Figure 5 The movable seat 1 is equipped with an adjusting seat 3, which in turn is equipped with a ejector pin 31 and a drive assembly 4. The drive assembly 4 includes a hydraulic box 41, a piston rod 42, a rotating shaft 43, a drive rod 44, and a first return spring 45. The adjusting seat 3 has a hydraulic channel, within which the piston rod 42 slides. The hydraulic box 41 is bolted to the adjusting seat 3 and connects to an external hydraulic system. One end of the hydraulic box 41 is connected to one end of the hydraulic channel. A stop block is bolted to the other end of the hydraulic channel, blocking the hydraulic channel. The first return spring 45 is installed between the stop block and the piston rod 42.

[0029] Reference Figure 4 and Figure 5 The adjusting seat 3 has a drive channel, and a drive column 44 is mounted on the drive channel. A copper bushing 441 is fitted on the surface of the drive column 44, and the surface of the copper bushing 441 has several holes filled with graphite. The copper bushing 441 has clearance grooves. The copper bushing 441 serves as the sliding medium for the drive column 44 within the drive channel, providing lubrication for the movement of the drive column 44. A ejector pin 31 is mounted on one end of the drive column 44. A fixed cylinder is bolted to one end of the adjusting seat 3, and the fixed cylinder is coaxially mounted with the drive column 44. An adjusting cylinder 32 is threaded onto the fixed cylinder, and an ejector spring 33 is positioned between the adjusting cylinder 32 and the other end of the drive column 44. The adjusting cylinder 32 is used to adjust the clamping force of the ejector spring 33, which applies pressure to the drive column 44 to ensure that the tooth groove wall of the drive column 44 presses tightly against the teeth of the transmission gear 431, thereby eliminating the meshing gap and improving the transmission accuracy of the ejector pin 31.

[0030] Reference Figure 4 and Figure 5 The rotating shaft 43 is vertically rotatably connected to the adjusting seat 3 and is located between the drive column 44 and the piston column 42. A transmission gear 431 is fixedly connected to the rotating shaft 43. Several toothed grooves are opened on the surfaces of the piston column 42 and the drive column 44. The transmission gear 431 meshes between two rows of toothed grooves and is located in the clearance groove. A handle is fixedly connected to the top of the rotating shaft 43. The handle is used for mechanically controlling the rotation of the rotating shaft 43.

[0031] When the ejector pin 31 moves, the hydraulic control system supplies oil to the hydraulic channel, causing the piston rod 42 to move. This causes the rotating gear to rotate, driving the drive rod 44 to move, thus achieving the effect of moving the ejector pin 31. During reset, oil is pumped in the opposite direction, and the piston rod 42 returns to its initial position through the force of the first reset spring 45, thereby resetting the ejector pin 31. Simultaneously, the hydraulic box 41 can be replaced with a stop block, and the first reset spring 45 can be removed, enabling fully automatic control of the piston rod 42's movement via the hydraulic control system.

[0032] Reference Figure 2and Figure 6 The movable base 1 is provided with an installation step, and an adjustment block 5 is provided on the installation step. The adjustment block 5 includes an installation part 51 and a connecting part 52. The installation part 51 and the connecting part 52 are integrally formed, and a deformation groove 53 is provided between the installation part 51 and the connecting part 52. The installation part 51 is connected to the bottom wall of the installation step by bolts, and the connecting part 52 is connected to one side of the adjustment base 3 by bolts.

[0033] Reference Figure 2 and Figure 6 The adjusting base 3 is provided with a horizontal adjusting component 6 and a height adjusting component 34. The height adjusting component 34 is located above the connecting part 52, and the ejector pin 31 is located above the height adjusting component 34. The horizontal adjusting component 6 is located on the other side of the adjusting base 3. The horizontal adjusting component 6 includes a rotating knob 61, an adjusting screw 62, a base plate 63, and a moving block 64. The adjusting base 3 is provided with an adjusting groove, and the base plate 63 and the moving block 64 are both located in the adjusting groove. The bottom wall of the base plate 63 is attached to the top wall of the moving base 1, and the top wall of the base plate 63 is provided with an adjusting slope.

[0034] Reference Figure 6 The movable block 64 fits against the adjusting slope, and the adjusting screw 62 is rotatably connected to the adjusting seat 3 and threadedly engaged with the movable block 64. The rotating knob 61 is fixedly connected to the end of the adjusting screw 62 and is located outside the adjusting seat 3. The structure of the height adjusting assembly 34 is the same as that of the level adjusting assembly 6.

[0035] When adjusting the horizontal position of the ejector pin 31, rotate the adjusting screw 62, move the moving block 64, and rise under the influence of the adjusting slope. The adjusting seat 3 moves horizontally, causing the adjusting block 5 to deform slightly, thereby changing the horizontal position of the ejector pin 31. Similarly, adjust the height position of the ejector pin 31.

[0036] Reference Figure 7 The movable seat 1 is provided with a reset assembly 7, which includes a limiting bolt 71 and a second reset spring 72. Several limiting bolts 71 are provided, which pass through the movable seat 1 and the adjusting seat 3 from bottom to top and are threadedly engaged with the adjusting seat 3. The second reset spring 72 is sleeved on the limiting bolt 71 and is located between the limiting bolt 71 and the movable seat 1.

[0037] When resetting, rotate the adjusting screw 62 in the opposite direction, and use the force of the second reset spring 72 to pull the other side of the adjusting seat 3, so that the other side of the adjusting seat 3 returns to the initial position, thus achieving the effect of resetting the adjusting seat 3.

[0038] Reference Figure 6 and Figure 7To minimize the amount of impurities entering between the adjusting seat 3 and the movable seat 1, a rubber pad 8 is provided between the movable seat 1 and the adjusting seat 3. The rubber pad 8 is used to fill the gap between the adjusting seat 3 and the movable seat 1, preventing impurities from entering between them.

[0039] The implementation principle of a tailstock for a high-precision grinding machine according to an embodiment of this application is as follows: During operation, one end of the shaft part is first installed on the headstock. Air is supplied to the moving seat 1 through an external air source. After the moving seat 1 is moved to the designated position, the clamping bolt 23 is rotated so that the clamping block 22 presses against the side wall of the guide rail 01 to stabilize the moving seat 1. Then, the shaft part is placed on the ejector pin 31. Oil is supplied to the hydraulic box 41 through the hydraulic system, causing the piston pin 42 to move, which in turn causes the transmission gear 431 to rotate and drives the drive pin 44 to move until the ejector pin 31 presses against the other end of the shaft part. Then, the rotary knob 61 is rotated, and the adjusting screw 62 rotates, which drives the moving block 64 to move. The moving block 64 rises, which causes the other side of the adjusting seat 3 to rise slightly, so that the ejector pin 31 moves horizontally to eliminate the horizontal error of the other end of the shaft part. Similarly, the height error of the other end of the shaft part is adjusted by the height adjustment component 34, thus realizing the effect of the tailstock eliminating the machining error of the shaft part.

[0040] By setting up the horizontal adjustment component 6, the height adjustment component 34, the adjustment block 5, and the reset component 7, the horizontal or vertical adjustment of the ejector pin 31 is realized. Compared with the existing technology, the adjustment steps of the entire worktable are avoided, and the adjustment can be achieved only on the tailstock, reducing the number of error debugging steps, minimizing the generation of machining errors, and improving the debugging efficiency of grinding machine components.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A tailstock for a high-precision grinding machine, characterized in that: The system includes a movable seat (1) mounted on a grinding machine guide rail (01). A limiting component (2) restricts the movement of the movable seat (1) on the guide rail (01). An adjusting seat (3) and an adjusting block (5) are provided on the movable seat (1). An installation step is provided on one side of the movable seat (1). The adjusting block (5) includes a mounting part (51) and a connecting part (52). The mounting part (51) and the connecting part (52) are integrally formed, and a deformation groove (53) is provided between the mounting part (51) and the connecting part (52). The mounting part (51) is connected to the mounting step, and the connecting part (52) is connected to one side of the adjusting seat (3). The movable seat (1) is provided with... The device is equipped with a horizontal adjustment component (6) and a height adjustment component (34). The horizontal adjustment component (6) is located on the other side of the adjustment seat (3), and the height adjustment component (34) is located above the adjustment block (5). The movable seat (1) is equipped with a reset component (7) for resetting the other side of the adjustment seat (3). The adjustment seat (3) is equipped with a ejector pin (31) and a drive component (4) for adjusting the axial position of the ejector pin (31). The ejector pin (31) is located above the height adjustment component (34). The horizontal adjustment component (6) is used to adjust the horizontal position of the ejector pin (31), and the height adjustment component (34) is used to adjust the height position of the ejector pin (31).

2. The tailstock for a high-precision grinding machine according to claim 1, characterized in that: The drive assembly (4) includes a hydraulic box (41), a piston rod (42), a rotating shaft (43), a drive rod (44), and a first return spring (45). The adjusting seat (3) has a hydraulic channel. The piston rod (42) is slidably fitted in the hydraulic channel. The hydraulic box (41) is installed at one end of the hydraulic channel, and the other end of the hydraulic channel is blocked. The first return spring (45) is located between the piston rod (42) and the other end of the hydraulic channel. The drive rod (44) is slidably fitted in the adjusting seat (3). The surfaces of the drive rod (44) and the piston rod (42) are both provided with toothed grooves. The rotating shaft (43) is vertically rotatably connected to the adjusting seat (3) and is located between the drive rod (44) and the piston rod (42). A transmission gear (431) is connected to the rotating shaft (43). The transmission gear (431) meshes between the two toothed grooves. The ejector pin (31) is installed at the end of the drive rod (44).

3. The tailstock for a high-precision grinding machine according to claim 2, characterized in that: The drive column (44) is fitted with a copper bushing (441), the surface of the copper bushing (441) has a clearance groove, the transmission gear (431) is located in the clearance groove, and the surface of the copper bushing (441) also has several holes, the holes being filled with graphite.

4. The tailstock for a high-precision grinding machine according to claim 2, characterized in that: A fixed cylinder is connected to the adjusting seat (3). The fixed cylinder is coaxially arranged with the driving column (44). An adjusting cylinder (32) is threaded onto the fixed cylinder. An ejector spring (33) is provided between the inner end wall of the adjusting cylinder (32) and the driving column (44).

5. The tailstock for a high-precision grinding machine according to claim 1, characterized in that: The horizontal adjustment assembly (6) includes a rotary knob (61), an adjusting screw (62), a base plate (63), and a moving block (64). The bottom wall of the adjustment seat (3) has an adjustment groove. The base plate (63) is located in the adjustment groove and on the top wall of the moving seat (1). The top wall of the base plate (63) has an adjustment slope. The moving block (64) is located on the base plate (63) and fits against the adjustment slope. The adjusting screw (62) is rotatably connected to the adjustment seat (3) and threadedly engaged with the moving block (64). The rotary knob (61) is connected to one end of the adjusting screw (62). Similarly, the height adjustment assembly (34) is also provided.

6. The tailstock for a high-precision grinding machine according to claim 1, characterized in that: The reset assembly (7) includes a limiting bolt (71) and a second reset spring (72). The limiting bolt (71) passes through the moving seat (1) and the adjusting seat (3) from bottom to top and is threadedly engaged with the adjusting seat (3). The second reset spring (72) is sleeved on the limiting bolt (71) and is located between the moving seat (1) and the limiting bolt (71).

7. The tailstock for a high-precision grinding machine according to claim 1, characterized in that: The limiting component (2) includes a limiting block (21), a clamping block (22), and a clamping bolt (23). The guide rail (01) is configured as a dovetail shape. The limiting block (21) is connected to one side of the movable seat (1) and fits against one side of the guide rail (01). A limiting step is provided on the other side of the movable seat (1). One end of the clamping block (22) presses against the bottom wall of the limiting step, and the other end abuts against the other side of the guide rail (01). The clamping bolt (23) passes through the clamping block (22) and the movable seat (1) and is threadedly engaged with the movable seat (1).

8. The tailstock for a high-precision grinding machine according to claim 7, characterized in that: The movable base (1) is provided with an air inlet (11) at one end, the air inlet (11) is connected to an external air source, and a plurality of air outlet grooves are provided on the bottom wall of the movable base (1), and an air outlet (12) is provided in the air outlet groove.

9. The tailstock for a high-precision grinding machine according to claim 1, characterized in that: A rubber pad (8) is provided between the adjusting seat (3) and the moving seat (1).

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