A grinder center rest

Abstract

This application relates to a grinding machine center rest, belonging to the technical field of center rests. The grinding machine center rest includes a center rest body, a clamping mechanism, a driving mechanism, and an adjusting mechanism. The adjusting mechanism includes a vertical adjusting component and a horizontal adjusting component. The vertical adjusting component includes a vertical adjusting knob, a vertical adjusting rod, and a vertical adjusting transmission component. The horizontal adjusting component includes a horizontal adjusting knob, a horizontal adjusting rod, and a horizontal adjusting transmission component. The center rest body has a lifting groove for guiding the horizontal adjusting rod to move up and down. When the horizontal adjusting rod moves up and down, it drives the vertical adjusting rod to move horizontally, and the vertical adjusting rod drives the support arm fixing pin and the center sliding plate to move horizontally. This application has the effect of improving the fine-tuning accuracy of the center rest and reducing the difficulty of machining and assembly.

Description

Technical Field

[0001] This application relates to the field of center rest technology, and in particular to a grinding machine center rest. Background Technology

[0002] The center rest is a product that is an accessory for high-precision CNC lathes such as CNC milling machines, milling centers, and CNC grinding machines. It is used to improve the stress condition during the machining of long and thin shafts, engine crankshafts, pipes, and mechanical parts, thereby playing a role in shock absorption and preventing steel parts from bending.

[0003] The existing center frame includes a center frame body, a clamping mechanism, a drive mechanism, and an adjustment mechanism. The center frame body has a central sliding plate for mounting the clamping mechanism. The clamping mechanism includes a sliding upper support arm, a lower support arm, and a central support arm. The central sliding plate has guide grooves on both sides for sliding mounting of the upper and lower support arms. The adjustment mechanism is used to fine-tune the horizontal and vertical movement of the upper and lower support arms. The vertical distance between the upper and lower support arms is the center distance. The adjustment mechanism includes an adjustment rod disposed within the center frame body and an adjustment knob for driving the adjustment rod to move vertically. The upper and lower support arms are equipped with support arm fixing pins for abutting the adjustment rod.

[0004] When the drive mechanism drives the center sliding plate to move horizontally, the clamping mechanism first slides horizontally a certain distance in sync with the center sliding plate. After the support arm fixing pin abuts against the adjusting rod, the continued drive of the center sliding plate will cause the support arm fixing pin to move vertically along the adjusting rod, that is, the upper and lower support arms slide in the guide groove, so that the upper or lower support arm moves vertically.

[0005] Regarding the aforementioned technologies, the fixing pins of the upper and lower support arms are located on opposite sides of the central sliding plate. The current adjustment mechanism includes two adjustment rods connected by a linkage mechanism. An adjustment knob drives one of the adjustment rods, which in turn moves the other rod via the linkage mechanism, enabling fine-tuning of the two upper and lower support arms. However, this adjustment mechanism is relatively complex, and its adjustment accuracy needs improvement. Summary of the Invention

[0006] In order to improve the fine-tuning accuracy of the center rest and reduce the difficulty of machining and assembly, this application provides a grinding machine center rest.

[0007] The grinding machine center rest provided in this application adopts the following technical solution:

[0008] A grinding machine center rest includes a center rest body, a clamping mechanism, a driving mechanism, and an adjusting mechanism. The adjusting mechanism includes a vertical adjusting component for fine-tuning the center distance of the clamping mechanism and a horizontal adjusting component for fine-tuning the horizontal movement distance of the clamping mechanism. The vertical adjusting component includes a vertical adjusting knob, a vertical adjusting rod disposed on both sides of a central sliding plate and abutting against the fixing pins of the upper and lower support arms, and a vertical adjusting transmission component for connecting the vertical adjusting knob and the vertical adjusting rod. The horizontal adjusting component includes a horizontal adjusting knob, a horizontal adjusting rod disposed on both sides of the central sliding plate and abutting against the vertical adjusting rod, and a horizontal adjusting transmission component for connecting the horizontal adjusting knob and the horizontal adjusting rod. The center rest body has an adjusting groove for guiding the horizontal adjusting rod to rise and fall. When the horizontal adjusting rod rises and falls, it drives the vertical adjusting rod to move horizontally, and the vertical adjusting rod drives the support arm fixing pins and the central sliding plate to move horizontally.

[0009] By adopting the above technical solution, when using the aforementioned center frame, the center sliding plate and the clamping mechanism are first driven to move horizontally by the clamping mechanism. Once the support arm fixing pins of the upper and lower supports abut against the vertical adjusting rods, and the upper and lower supports move vertically, the initial positioning of the clamping mechanism is completed. Then, the center distance between the upper and lower supports can be finely adjusted via the vertical adjustment assembly. The vertical adjustment knob simultaneously drives the two vertical adjusting rods to rise and fall via the vertical adjustment transmission component. The horizontal adjustment assembly finely adjusts the horizontal movement distance of the clamping mechanism. The horizontal adjustment knob simultaneously drives the two horizontal adjusting rods to rise and fall via the horizontal adjustment transmission component. The horizontal adjusting rods drive the vertical adjusting rods to move horizontally. The two fine-tuning components directly drive the two adjusting rods to move vertically via the adjustment transmission component. Compared to using a linkage to indirectly drive the two adjusting rods to rise and fall synchronously, the structure of this application has the advantages of stable transmission, high adjustment accuracy, and a simpler structure, making it easier to maintain and reducing the failure rate.

[0010] Optionally, the vertical adjustment knob has a screw portion extending into the central frame body, the central frame body has an adjustment screw hole that is threadedly engaged with the screw portion, the vertical adjustment transmission component is fixedly connected to the screw portion, the central frame body has a lifting chamber for the vertical adjustment transmission component to move vertically, the structure of the horizontal adjustment knob is consistent with that of the vertical adjustment knob, and the horizontal and vertical adjustment transmission components are slidably installed in the lifting chamber.

[0011] By adopting the above technical solution, when performing vertical fine-tuning, rotating the vertical adjustment knob causes the screw to move vertically on the center frame body. The screw drives the vertical adjustment transmission component to move vertically within the lifting chamber. The vertical adjustment transmission component enables the vertical adjustment rods on both sides of the center sliding plate to move synchronously. The horizontal adjustment knob operates similarly. This adjustment method is simple to operate and facilitates fine-tuning by processing personnel.

[0012] Optionally, both the vertical adjustment transmission component and the horizontal adjustment transmission component are rolling bearing components. Both the vertical adjustment rod and the horizontal adjustment rod have transverse sliding grooves that pass through both side walls and are arranged to limit the outer ring of the rolling bearing. A second spring column is provided on the side wall of one of the vertical adjustment rods, and the second spring column drives the vertical adjustment rod to always abut against the horizontal adjustment rod.

[0013] By adopting the above technical solution, the structures of the vertical and horizontal adjustment transmission components are specifically disclosed. Both the vertical and horizontal adjustment rods are limited and installed with rolling bearings via transverse sliding grooves. The vertical movement of the rolling bearings can synchronously drive the vertical and horizontal adjustment rods. When making fine adjustments in the horizontal direction, the horizontal adjustment rod drives the vertical adjustment rod to move horizontally. The transverse sliding groove and the outer ring of the rolling bearing limit the movement, making the friction between the horizontal adjustment rod and the horizontal adjustment transmission component rolling friction, resulting in smoother horizontal sliding of the horizontal adjustment rod and less effort required for adjustment.

[0014] Optionally, the vertical adjusting rod and the horizontal adjusting rod are provided with a compression spring ball on the side away from the lifting chamber for abutting against the inner wall of the central frame body, and the compression spring ball drives the vertical adjusting rod and the horizontal adjusting rod to press against the rolling bearing.

[0015] By adopting the above technical solution, after the vertical and horizontal adjusting rods are installed, the clamping spring ball is set on the side wall of the adjusting rod away from the rolling bearing and abuts against the inner cavity wall of the central frame. The clamping spring drives the vertical and horizontal adjusting rods to always move towards the rolling bearing, which improves the coordination stability between the vertical and horizontal adjusting rods and the rolling bearing, making the vertical movement of the vertical and horizontal adjusting rods more stable.

[0016] Optionally, the central frame body is provided with an abutment plate for abutting the vertical adjustment rod. One end of the abutment plate abuts the side wall of the vertical adjustment rod, and the other end of the side wall is provided with a first spring column. The first spring column drives the abutment plate to always abut against the vertical adjustment rod.

[0017] By adopting the above technical solution, one end of the abutting plate abuts against the side wall of the vertical adjusting rod, which can ensure the vertical movement of the vertical adjusting rod, reduce the probability of deviation when the vertical adjusting rod moves vertically, and ensure that the horizontal adjusting rod and the vertical adjusting rod are always in abutting state. The setting of the first spring column allows the abutting plate to move synchronously with the vertical adjusting rod when it moves.

[0018] Optionally, the central frame body is further provided with a first monitoring component for monitoring the vertical adjustment component and a second monitoring component for monitoring the horizontal adjustment component.

[0019] By adopting the above technical solution, the setting of the first monitoring component and the second monitoring component enables the processing personnel to obtain the specific adjustment data by observing the monitoring components during fine-tuning operations, making the fine-tuning operation more convenient and improving the efficiency of fine-tuning.

[0020] Optionally, the first monitoring component includes a first monitoring device and a first transmission member for transmitting the movement of the vertical adjustment rod to the first monitoring device.

[0021] By adopting the above technical solution, the structural composition of the first monitoring component is disclosed. When the vertical adjustment rod moves vertically, the first transmission component transmits the movement of the vertical adjustment rod to the first monitoring device, and the center distance between the upper and lower support arms is directly displayed on the first monitoring device.

[0022] Optionally, the first transmission component is slidably installed in the central frame body, with its two sides abutting against the vertical adjusting rod and the first monitoring device, respectively. A first spring ball is provided on the side of the first transmission component away from the vertical adjusting rod, and the second spring ball drives the first transmission component to always abut against the side wall of the vertical adjusting rod. When the vertical adjusting rod moves vertically, the first transmission component slides synchronously.

[0023] By adopting the above technical solution, the first transmission component is always abutted against the vertical adjustment rod through the first spring ball. When the vertical adjustment rod moves vertically, it will drive the first transmission component to slide simultaneously. The first transmission component transmits the movement changes of the vertical adjustment rod to the first monitoring device.

[0024] Optionally, the second monitoring component includes a second monitoring device and a second transmission component for transmitting the adjustment movement distance of the horizontal adjustment rod to the second monitoring device.

[0025] By adopting the above technical solution, the structural composition of the second monitoring component is disclosed. When the horizontal adjustment rod moves, the second transmission component transmits the movement change of the horizontal adjustment rod to the second monitoring device, and the horizontal movement data of the upper and lower support arms are directly displayed on the second monitoring device.

[0026] Optionally, the second transmission component includes a connecting rod connecting the central sliding plate, an abutment rod connecting the second monitoring device, and a transmission seat for mounting the connecting rod and the abutment rod. There is a movement gap between the abutment rod and the second monitoring device. When the central sliding plate moves to the point where the abutment rod and the second monitoring device abut, the second monitoring device begins to monitor the adjustment data of the leveling component.

[0027] By adopting the above technical solution, the structural composition of the second transmission component, as well as the second transmission component and transmission method, are specifically disclosed. When making fine adjustments in the horizontal direction, the vertical lifting of the horizontal adjustment rod drives the vertical adjustment rod to move horizontally. The horizontal movement of the vertical adjustment rod drives the support arm fixing pin to move. That is, the vertical adjustment rod simultaneously drives the central sliding plate, the upper and lower support arms, and the connecting rod to move horizontally at the same time. The connecting rod and the abutting rod are connected through the transmission seat, so that the abutting rod can transmit the horizontal movement data of the upper and lower support arms to the second monitoring device. The processing personnel can further fine-tune the data displayed by the second monitoring device to make the upper and lower support arms more suitable for the workpiece to be processed.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. The grinding machine center frame of this application can make fine adjustments to the upper and lower support arms by setting vertical adjustment components and horizontal adjustment components. The two fine adjustment components directly drive the two adjustment rods to move vertically through the adjustment transmission components. Compared with the prior art, which uses a linkage to indirectly drive the two adjustment rods to move synchronously up and down, this application has the advantages of stable transmission, high adjustment accuracy, simple structure and convenient maintenance.

[0030] 2. The horizontal adjustment transmission component of this application is a rolling bearing component, which enables the friction between the horizontal adjustment rod and the horizontal adjustment transmission component to be rolling friction when the horizontal adjustment rod slides, making the horizontal sliding of the horizontal adjustment rod smoother and the adjustment more labor-saving;

[0031] 3. By setting up a compression spring ball, this application improves the coordination stability of the vertical and horizontal adjusting rods and the rolling bearings, making the vertical movement of the vertical and horizontal adjusting rods more stable and further improving the adjustment accuracy. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0033] Figure 2 This is a structural schematic diagram of the fixed cover plate on one side of the lower support arm of the central frame in an embodiment of this application.

[0034] Figure 3 This is an exploded view of the vertical adjustment component according to an embodiment of this application.

[0035] Figure 4 This is a schematic diagram of the structure of the central frame on one side of the upper support arm in an embodiment of this application.

[0036] Figure 5 This is a schematic diagram of the structure of the horizontal adjustment component according to an embodiment of this application.

[0037] Figure 6 This is a schematic diagram of the cooperation between the first monitoring component and the vertical adjustment component in an embodiment of this application.

[0038] Figure 7 This is a schematic diagram of the cooperation between the second monitoring component and the central frame in an embodiment of this application.

[0039] Explanation of reference numerals in the attached drawings: 1. Central frame body; 11. Central frame body; 111. Horizontal slide groove; 112. Adjusting screw hole; 113. Lifting chamber; 12. Central sliding plate; 121. Guide inclined groove; 13. Fixed cover plate; 131. Adjusting groove; 1311. Adjusting inclined surface; 132. Limiting placement groove; 133. First transmission groove; 14. Sliding chamber; 15. Abutment plate; 151. First spring column; 16. 17. Gas supply pipe; 18. Oil injection pipe; 19. Reference seat; 2. Clamping mechanism; 20. Upper support arm; 21. Lower support arm; 22. Central support arm; 23. Support arm fixing pin; 24. Sliding wheel; 25. Drive mechanism; 4. Vertical adjustment assembly; 41. Vertical adjustment knob; 411. Rotating part; 412. Screw part; 42. Vertical adjustment rod; 421. Lateral slide groove; 422. Receiving groove; 423. Abutting inclined surface; 424. 425. Second spring column; 43. Second acting inclined surface; 44. Vertical adjustment transmission component; 45. Compression spring ball; 46. Compression spring; 47. Compression ball; 48. Horizontal adjustment assembly; 59. Horizontal adjustment knob; 50. Horizontal adjustment rod; 51. Horizontal adjustment inclined surface; 52. Horizontal adjustment transmission component; 60. First monitoring assembly; 61. First monitoring device; 611. First monitor; 612. First monitoring rod; 62. First transmission component; 621. First spring ball; 622. Second spring ball; 623. First acting inclined surface; 63. First fixed seat; 71. Second monitoring assembly; 721. Second monitoring device; 722. Second monitor; 712. Second monitoring rod; 72. Second transmission component; 721. Connecting rod; 722. Abutment rod; 723. Transmission seat; 724. Positioning rod; 73. Second fixed seat. Detailed Implementation

[0040] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0041] This application discloses a grinding machine center rest.

[0042] Reference Figure 1A grinding machine center rest includes a center rest body 1, a clamping mechanism 2, a drive mechanism 3, an adjustment mechanism, and a monitoring mechanism. The adjustment mechanism includes a vertical adjustment component 4 for fine-tuning the center distance of the clamping mechanism 2 and a horizontal adjustment component 5 for fine-tuning the horizontal movement distance of the clamping mechanism 2. The monitoring mechanism includes a first monitoring component 6 and a second monitoring component 7 for monitoring the vertical adjustment component 4 and the horizontal adjustment component 5, respectively.

[0043] The center frame body 1 includes a center frame 11 for mounting to a lathe, a center sliding plate 12 slidably mounted on the center frame 11, and fixed cover plates 13 disposed on both sides of the center frame 11 for covering the center sliding plate 12. The center frame 11 is generally a horizontally arranged U-shaped frame, and has a horizontal slide groove 111 for the center sliding plate 12 to slide horizontally. The horizontal slide groove 111 penetrates the two end faces of the center frame 11 in the vertical direction. The fixed cover plates 13 and the center frame 11 are fixedly connected by several bolts, and the two fixed cover plates 13 and the center frame 11 form a sliding chamber 14 for mounting the center sliding plate 12. In this embodiment, Figure 1 In this diagram, the X direction is horizontal, and the Y direction is vertical. The vertical direction is also the height direction.

[0044] The drive mechanism 3 is driven by a hydraulic cylinder. The hydraulic cylinder and the central frame 11 are fixedly connected by bolts. Its output shaft passes through the central frame 11 and is engaged and fixed to the sliding chamber 14 and the central sliding plate 12. The clamping mechanism 2 includes an upper support arm 21, a lower support arm 22, and a central support arm 23. The two vertical side walls of the central sliding plate 12 have guide grooves 121 for sliding installation of the upper support arm 21 and the lower support arm 22. Both the upper support arm 21 and the lower support arm 22 are fixedly installed with support arm fixing pins 24 for sliding in the guide grooves 121.

[0045] The central frame 11 is also equipped with an air supply pipe 16 and an oil supply pipe 17 that connect to the sliding chamber 14. The air supply pipe 16 is located on the side wall of the central frame 11 and is connected to an external air source. The gas flow direction is horizontal, which can create positive pressure in the sliding chamber 14 during machining on the central frame, reducing the probability of flying debris generated during machining entering the sliding chamber 14. The oil supply pipe 17 is located on the top of the central frame 11 and provides lubricating oil to the adjustment mechanism and clamping mechanism 2 in the sliding chamber 14.

[0046] Reference Figure 2 and Figure 3 The vertical adjustment assembly 4 includes a vertical adjustment knob 41, two vertical adjustment rods 42 disposed on both sides of the central sliding plate 12 and abutted by the support arm fixing pin 24, and a vertical adjustment transmission component 43 for simultaneously transmitting the driving force of the vertical adjustment knob 41 to the two vertical adjustment rods 42.

[0047] A vertical adjustment knob 41 is located on the top of the central frame 11. The vertical adjustment knob 41 includes a rotating part 411 and a screw part 412 extending into the central frame 11. The rotating part 411 and the screw part 412 are integrally formed, and the top of the central frame 11 has an adjustment screw hole 112 that is threaded into the screw part 412.

[0048] The vertical adjustment transmission component 43 is a rolling bearing component in the prior art, including an inner ring, an outer ring, and rolling elements located between the outer ring and the inner ring. The inner ring and the screw portion 412 are arranged coaxially and are fixedly connected by bolts, while the outer ring and the vertical adjustment rod 42 are slidably installed. The central frame 11 has a lifting chamber 113 for vertical movement of the vertical adjustment transmission component 43, and the height of the lifting chamber 113 in the vertical direction represents the range of movement of the vertical adjustment transmission component 43.

[0049] The fixed cover plate 13 has an adjustment groove 131 for mounting the vertical adjustment rod 42. The end face of the vertical adjustment rod 42 facing the vertical adjustment knob 41 has a transverse sliding groove 421 for mounting with the outer ring, the transverse sliding groove 421 penetrating both side walls of the vertical adjustment rod 42. The end face of the vertical adjustment rod 42 facing away from the transverse sliding groove 421 has several horizontally formed receiving grooves 422, and a pressure spring ball 44 is installed within each receiving groove 422. The pressure spring ball 44 includes a pressure spring 441 and a pressure ball 442. One end of the pressure spring 441 is connected to the bottom wall of the receiving groove 422, and the other end is connected to the pressure ball 442. The arrangement of the pressure spring ball 44 causes the two vertical adjustment rods 42 to tend to move towards the vertical adjustment transmission member 43, that is, the pressure spring ball 44 has the function of pressing the vertical adjustment rods 42 against the vertical adjustment transmission member 43, improving the lifting stability between the vertical adjustment rods 42 and the vertical adjustment transmission member 43.

[0050] When the vertical adjustment knob 41 is turned, the screw part 412 and the vertical adjustment transmission component 43 move vertically in the lifting chamber 113. Through the cooperation of the transverse slide groove 421 and the outer ring, the vertical adjustment transmission component 43 can drive the vertical adjustment rods 42 on both sides to rise and fall.

[0051] Combination Figure 4 The vertical adjustment rod 42 has an abutment slope 423 on its side wall facing the drive mechanism 3 for the support arm fixing pin 24 to abut. An abutment plate 15 is also provided inside the central frame 11 to restrict the movement of the support arm fixing pin 24. The fixed cover plate 13 has a limiting placement groove 132 for the limiting placement of the abutment plate 15, and the limiting placement groove 132 is connected to the adjustment groove 131.

[0052] The abutment plate 15 has two side walls in the horizontal direction. One end abuts against the abutment slope 423 of the vertical adjusting rod 42, and the other end is provided with a first spring post 151 for abutting against the side wall of the limiting placement groove 132. The first spring post 151 includes an abutment post abutting against the side wall of the limiting placement groove 132 and an abutment spring sleeved on the abutment post. The first spring post 151 drives the abutment plate 15 to always abut against the vertical adjusting rod 42, which can improve the stability of the vertical adjusting rod 42 when moving vertically and reduce the probability of the vertical adjusting rod 42 deviating.

[0053] according to Figures 1 to 4 The fine-tuning principle of the vertical adjustment component 4 is as follows: the drive mechanism 3 drives the center sliding plate 12 to move horizontally, and the support arm fixing pin 24 first moves horizontally along the bottom end face of the abutment plate 15. At this time, the clamping mechanism 2 only moves horizontally. When the support arm fixing pin 24 abuts against the abutment slope 423 of the vertical adjustment rod 42, the center sliding plate 12 is driven to make the support arm fixing pin 24 slide along the abutment slope 423 to the L-shaped groove of the abutment rod 722. That is, the upper and lower support arms 22 slide in the guide slope 121 to achieve coarse adjustment of the upper and lower support arms 22.

[0054] Then, rotating the vertical adjustment knob 41 causes the vertical adjustment rod 42 to rise and fall vertically. The vertical adjustment rod 42 drives the support arm fixing pin 24 to move along the abutting inclined surface 423, thereby driving the upper and lower support arms 22 to slide within the guide groove 121, thus achieving fine adjustment of the center distance between the upper and lower support arms 22. A sliding wheel 25 is also rotatably mounted on the support arm fixing pin 24, and the sliding wheel 25 and the abutting inclined surface 423 experience sliding friction.

[0055] Reference Figure 4 and Figure 5 The horizontal adjustment assembly 5 includes a horizontal adjustment knob 51, two horizontal adjustment rods 52 disposed on both sides of the central sliding plate 12 and abutting against the vertical adjustment rod 42, and a horizontal adjustment transmission component 53 for simultaneously transmitting the driving force of the horizontal adjustment knob 51 to the two horizontal adjustment rods 52.

[0056] The horizontal adjustment knob 51 is located at the top of the central frame 11, on the side of the vertical adjustment knob 41 away from the drive mechanism 3. A reference seat 18 is bolted between the two adjustment knobs, allowing the bottom surfaces of the two adjustment knobs to abut against each other. The structure of the horizontal adjustment knob 51 is the same as that of the vertical adjustment knob 41. The horizontal adjustment transmission component 53 is a rolling bearing component and is limited and installed in the lifting chamber 113. There is a gap between the horizontal adjustment transmission component 53 and the vertical adjustment transmission component 43 so that their vertical movements do not affect each other.

[0057] The horizontal adjustment transmission component 53 and the horizontal adjustment knob 51 are arranged coaxially, and the cooperation method between the horizontal adjustment transmission component 53 and the horizontal adjustment rod 52 is the same as the cooperation method between the vertical adjustment transmission component 43 and the vertical adjustment rod 42. The horizontal adjustment rod 52 is arranged vertically in the adjustment groove 131. The horizontal adjustment rod 52 also has a compression spring ball 44 on the end face away from the rolling bearing component for abutting against the groove wall of the adjustment groove 131.

[0058] The horizontal adjusting rod 52 has a horizontal adjusting inclined surface 521 on its side wall away from the vertical adjusting rod 42. The adjusting groove 131 has an adjusting inclined surface 1311 that fits against the horizontal adjusting inclined surface 521, so that the movement of the horizontal adjusting rod 52 is an inclined vertical movement. Therefore, the raising and lowering of the horizontal adjusting rod 52 will drive the vertical adjusting rod 42 to move horizontally to a certain extent. A second spring post 424 is provided on the side wall of the vertical adjusting rod 42 located on the side of the upper support arm 21. The structure of the second spring post 424 is consistent with that of the first spring post. The second spring post 424 drives the vertical adjusting rod 42 to always abut against the horizontal adjusting rod 52, so that when the horizontal adjusting rod 52 moves, it can drive the vertical adjusting rod 42 to move horizontally synchronously.

[0059] according to Figures 2 to 5 The fine-tuning principle of the horizontal adjustment component 5 is as follows: Similar to the vertical adjustment component 4, the horizontal extension distance of the clamping mechanism 2 is first coarsely adjusted by driving the drive component. When the support arm fixing pin 24 and the vertical adjustment rod 42 are in contact, the horizontal adjustment of the upper and lower support arms 22 can be performed. Rotating the horizontal adjustment knob 51 causes the horizontal adjustment rod 52 to rise and fall vertically. The horizontal adjustment rod 52 drives the vertical adjustment rod 42 to move horizontally, which in turn drives the support arm fixing pin 24 to move horizontally. This drives the upper and lower support arms 22 and the central sliding plate 12 to move horizontally as a whole, thereby achieving fine-tuning of the horizontal direction of the clamping mechanism 2. Therefore, in actual fine-tuning operations, the horizontal direction is adjusted first, and then the vertical direction is adjusted.

[0060] Reference Figure 2 and Figure 6 The first monitoring component 6 includes a first monitoring device 61, a first transmission member 62 for transmitting the movement changes of the vertical adjustment rod 42 to the first monitoring device 61, and a first fixed base 63. The first monitoring device 61 includes a first monitor 611 and a first monitoring rod 612 disposed on the side wall of the first monitor 611 and abutting against the first transmission member 62. The first fixed base 63 is fixed to the central frame 11 and is used to fix the first monitoring device 61. The first monitoring rod 612 is a spring-loaded telescopic rod structure. The first monitoring rod 612 passes through the first fixed base 63 into the sliding chamber 14, and the first monitoring rod 612 is located on the same side as the lower support arm 22.

[0061] Reference Figure 2 , Figure 4 and Figure 6 The first transmission component 62 is slidably installed within the sliding chamber 14. The fixed cover plate 13 has a first transmission groove 133 for horizontal sliding of the first transmission component 62, which communicates with the adjustment groove 131. A first spring ball 621 is provided on the side wall of the first transmission component 62 away from the vertical adjustment rod 42. The first spring ball 621 ensures that both sides of the first transmission component 62 are always in contact with the vertical adjustment rod 42 and the first monitoring rod 612, respectively. A second spring ball 622 is also provided at the bottom of the first transmission component 62, abutting against the support surface of the first transmission groove 133. This reduces friction when the first transmission component 62 moves horizontally within the first transmission groove 133, thereby improving monitoring accuracy. The first spring ball 621 and the second spring ball 622 have the same structure as the pressure spring ball 44.

[0062] The side wall of the first transmission member 62 facing the vertical adjustment rod 42 has a first working inclined surface 623, and the vertical adjustment rod 42 has a second working inclined surface 425 that fits against the first working inclined surface 623. When the vertical adjustment rod 42 moves vertically, it drives the first transmission member 62 to move horizontally. The first transmission member 62 transmits the movement of the vertical adjustment rod 42 to the first monitor 611 through the first monitoring rod 612. The center distance between the upper and lower support arms 22 is directly displayed on the first monitor 611, allowing the operator to improve the accuracy of fine-tuning operations based on the information displayed on the first monitor 611.

[0063] Reference Figure 1 , Figure 2 and Figure 7 The second monitoring component 7 includes a second monitoring device 71, a second transmission member 72 for transmitting the horizontal fine-tuning amount of the horizontal adjustment rod 52 to the second monitoring device 71, and a second fixed base 73. The second monitoring device 71 includes a second monitor 711 and a second monitoring rod 712 disposed on the side wall of the second monitor 711 and corresponding to the second transmission member 72. In this embodiment, both the first monitor 611 and the second monitor 711 are dial indicators; in other embodiments, they can be digital displacement sensors.

[0064] The second fixing seat 73 is bolted to the outer end face of the fixing cover plate 13 and is used to fix the second monitoring device 71. The second monitoring rod 712 is also a spring-loaded telescopic rod structure. The second monitoring rod 712 is horizontally inserted through the second fixing seat 73 and corresponds to the second transmission component 72.

[0065] The second transmission component 72 includes a connecting rod 721, an abutment rod 722, and a transmission seat 723. Both the connecting rod 721 and the abutment rod 722 pass through the transmission seat 723 and are fixedly connected to it by bolts. The connecting rod 721 horizontally passes through the central frame 11 and is fixedly connected to the central sliding plate 12 within the sliding chamber 14. The transmission seat 723 also has a horizontally sliding positioning rod 724 between the abutment rods 722 and the connecting rod 721, and the positioning rod 724 is fixedly connected to the central frame 11. When the central sliding plate 12 moves horizontally, it drives the connecting rod 721, the transmission seat 723, and the abutment rod 722 to move horizontally synchronously, with the transmission seat 723 and the positioning rod 724 slidingly engaged.

[0066] The connecting rod 721 passes horizontally through the transmission seat 723, and the connecting rod 721 and the second monitoring rod 712 are arranged coaxially and correspondingly. Before the coarse adjustment of the drive mechanism 3, the abutting rod 722 and the second monitoring rod 712 are not in contact, and there is a clearance between them. The abutting rod 722 and the transmission seat 723 are threaded together, so that before the center rest is installed on the lathe, the abutting rod 722 can be rotated first to adjust the size of the clearance.

[0067] The implementation principle of a grinding machine center rest according to an embodiment of this application is as follows: A hydraulic cylinder is activated to drive the center sliding horizontally for coarse adjustment of the clamping mechanism 2. After the support arm fixing pin 24 and the vertical fixing rod are in contact, the operator can perform fine adjustments by rotating the vertical adjustment knob 41 and the horizontal adjustment knob 51, first performing fine adjustments in the horizontal direction, and then in the vertical direction. During fine adjustments, the operator can obtain specific data through the monitoring mechanism, improving the accuracy and efficiency of the fine adjustments.

[0068] 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 grinding machine center rest, comprising a center rest body (1), a clamping mechanism (2), a driving mechanism (3), and an adjusting mechanism, characterized in that, The adjustment mechanism includes a vertical adjustment component (4) for fine-tuning the center distance of the clamping mechanism (2) and a horizontal adjustment component (5) for fine-tuning the horizontal movement distance of the clamping mechanism (2). The vertical adjustment assembly (4) includes a vertical adjustment knob (41), a vertical adjustment rod (42) disposed on both sides of the central sliding plate (12) and abutting against the support arm fixing pins (24) of the upper and lower support arms (22), and a vertical adjustment transmission component (43) for connecting the vertical adjustment knob (41) and the vertical adjustment rod (42); the horizontal adjustment assembly (5) includes a horizontal adjustment knob (51), a horizontal adjustment rod (52) disposed on both sides of the central sliding plate (12) and abutting against the vertical adjustment rod (42), and a horizontal adjustment transmission component (53) for connecting the horizontal adjustment knob (51) and the horizontal adjustment rod (52). The central frame body (1) has an adjustment groove (131) for guiding the horizontal adjustment rod (52) to rise and fall. When the horizontal adjustment rod (52) rises and falls, it drives the vertical adjustment rod (42) to move horizontally. The vertical adjustment rod (42) drives the support arm fixing pins (24) and the central sliding plate (12) to move horizontally. The central frame body (1) is also provided with a first monitoring component (6) for monitoring the vertical adjustment component (4) and a second monitoring component (7) for monitoring the horizontal adjustment component (5). The first monitoring component (6) includes a first monitoring device (61) and a first transmission member (62) for transmitting the movement of the vertical adjustment rod (42) to the first monitoring device (61). The first transmission component (62) is slidably installed inside the central frame body (1). The two sides of the first transmission component (62) abut against the vertical adjustment rod (42) and the first monitoring device (61) respectively. The first transmission component (62) is provided with a first spring ball (621) on the side away from the vertical adjustment rod (42). The first spring ball (621) drives the first transmission component (62) to always abut against the side wall of the vertical adjustment rod (42). When the vertical adjustment rod (42) moves vertically, the first transmission component (62) slides synchronously.

2. A grinding machine center rest according to claim 1, characterized in that, The vertical adjustment knob (41) has a screw part (412) that extends into the central frame body (1). The central frame body (1) has an adjustment screw hole (112) that is threadedly engaged with the screw part (412). The vertical adjustment transmission member (43) is fixedly connected to the screw part (412). The central frame body (1) has a lifting chamber (113) for the vertical movement of the vertical adjustment transmission member (43). The structure of the horizontal adjustment knob (51) is consistent with that of the vertical adjustment knob (41). The vertical adjustment transmission member (43) is slidably installed in the lifting chamber (113).

3. A grinding machine center rest according to claim 2, characterized in that, Both the vertical adjustment transmission component (43) and the horizontal adjustment transmission component (53) are rolling bearing components. Both the vertical adjustment rod (42) and the horizontal adjustment rod (52) have transverse sliding grooves (421) that pass through both side walls and are arranged to limit the outer ring of the rolling bearing component. A second spring column (424) is provided on the side wall of one of the vertical adjustment rods (42). The second spring column (424) drives the vertical adjustment rod (42) to always abut against the horizontal adjustment rod (52).

4. A grinding machine center rest according to claim 3, characterized in that, The vertical adjusting rod (42) and the horizontal adjusting rod (52) are provided with a compression spring ball (44) on the side away from the lifting chamber (113) for abutting against the inner wall of the central frame body (1). The compression spring ball (44) drives the vertical adjusting rod (42) and the horizontal adjusting rod (52) to press against the rolling bearing.

5. A grinding machine center rest according to claim 1, characterized in that, The central frame body (1) is provided with an abutment plate (15) for abutting the vertical adjustment rod (42). One end of the abutment plate (15) abuts the side wall of the vertical adjustment rod (42), and the other end of the side wall is provided with a first spring column (151). The first spring column (151) drives the abutment plate (15) to always abut the vertical adjustment rod (42).

6. A grinding machine center rest according to claim 1, characterized in that, The second monitoring component (7) includes a second monitoring device (71) and a second transmission component (72) for transmitting the adjustment movement distance of the horizontal adjustment rod (52) to the second monitoring device (71).

7. A grinding machine center rest according to claim 6, characterized in that, The second transmission component (72) includes a connecting rod (721) connecting the central sliding plate (12), an abutment rod (722) connecting the second monitoring device (71), and a transmission seat (723) for mounting the connecting rod (721) and the abutment rod (722). There is a movement gap between the abutment rod (722) and the second monitoring device (71). When the central sliding plate (12) moves to the point where the abutment rod (722) and the second monitoring device (71) abut, the second monitoring device (71) begins to monitor the level adjustment component (5).

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