Workpiece support of centerless grinding machine and centerless grinding machine

Abstract

The utility model relates to a workpiece support of a centerless grinding machine, and relates to the technical field of grinding machines. The workpiece support of the centerless grinding machine comprises a cutting board support and a feeding board support, feeding boards are fixed to the feeding board support, a feeding channel used for conveying workpieces is formed between the two feeding boards, the cutting board support comprises a fixing block and a lower cutting board, the fixing block is fixed to a base of the centerless grinding machine, and the lower cutting board is fixed to the side, away from a guide wheel of the centerless grinding machine, of the fixing block. The feeding plate support comprises a fixed base fixed to a centerless grinding machine base and two coarse adjusting blocks, the two feeding plates are fixed to the upper ends of the two coarse adjusting blocks respectively, a protruding block in the width direction of the feeding channel is fixed to the upper end of the fixed base, and sliding grooves allowing the protruding block to slide are formed in the lower ends of the two coarse adjusting blocks. First fasteners are arranged on the coarse adjusting blocks, and after the two coarse adjusting blocks slide to adjust the distance between the two coarse adjusting blocks, the coarse adjusting blocks and the fixed base are fixed through the first fasteners. The feeding device has the effect of conveniently adjusting the width of the feeding channel.

Description

Technical Field

[0001] This application relates to the field of grinding machine technology, and in particular to a workpiece support for a centerless grinder and a centerless grinder. Background Technology

[0002] Centerless grinders are a type of grinding machine that does not require workpiece axis positioning for grinding and are commonly used in the field of roller processing. A centerless grinder mainly consists of three mechanisms: a grinding wheel, a guide wheel, and a workpiece support. The grinding wheel performs the actual grinding work, the guide wheel controls the rotation of the workpiece and its feed rate, and the workpiece support is used to support the workpiece during grinding. These three components work together to achieve the grinding of the workpiece.

[0003] In existing technology, the workpiece support of a centerless grinder for machining cylindrical rollers includes a cutter plate support and a feed plate support. The cutter plate support is typically fixed to the base of the grinder, with the cutter plate relatively fixed to it. The feed plate supports are fixed on both sides of the feed plate to support and fix the feed channel and position the feed inlet, ensuring that the feed channel accurately feeds the workpiece into the grinding track between the cutter plate and the guide roller. Because the feed plate supports are fixed, adjusting the width between the two feed plates is necessary when changing workpieces of different diameters, and the feed plate supports are difficult to adjust. Utility Model Content

[0004] To address the problem of difficulty in adjusting the width between the feed plates, this application provides a workpiece support for a centerless grinder.

[0005] The workpiece support for a centerless grinder provided in this application adopts the following technical solution:

[0006] A workpiece support for a centerless grinder includes a cutter plate support and a feed plate support. A feed plate is fixed to the feed plate support, and a feed channel for conveying workpieces is formed between the two feed plates. The cutter plate support includes a fixing block and a lower cutter plate. The fixing block is fixed to the base of the centerless grinder, and the lower cutter plate is fixed to the side of the fixing block away from the guide wheel of the centerless grinder. The feed plate support includes a fixed base, which is fixed to the base of the centerless grinder. Two coarse adjustment blocks are connected to the fixed base. The two feed plates are respectively fixed to the upper ends of the two coarse adjustment blocks. A protrusion along the width direction of the feed channel is fixed to the upper end of the fixed base. A sliding groove is formed at the lower end of the two coarse adjustment blocks for the protrusion to slide. The protrusion is slidably connected to the sliding groove. A first fastener is also provided on the coarse adjustment block. After the two coarse adjustment blocks slide to adjust the distance between them, the coarse adjustment block and the fixed base are fixed by the first fastener.

[0007] By adopting the above technical solution, the lower blade is fixed on the side of the fixed block away from the guide wheel of the centerless grinder, increasing the distance between the lower blade and the guide wheel. After the guide wheel wears out, it can be adjusted to move closer to the lower blade and continue to be used, thereby increasing the service life of the guide wheel. The two coarse adjustment blocks slide against the protrusion to adjust the distance between them, causing the two feed plates fixed on the coarse adjustment blocks to move closer or further apart, thus changing the width of the feed channel. After adjusting the width of the feed channel, the coarse adjustment blocks are fixed to the fixed base by the first fastener, and the width of the feed channel remains relatively fixed.

[0008] Preferably, the protrusion is a wedge-shaped block that is wider at the top and narrower at the bottom, the first fastener is a first fastening bolt, the lower end of the coarse adjustment block is provided with a coarse adjustment groove, the coarse adjustment groove is connected to the sliding groove, the first fastening bolt passes through one side of the coarse adjustment groove and enters the other side of the coarse adjustment groove, and the groove spacing of the coarse adjustment groove is reduced so that the width of the sliding groove is reduced to lock the protrusion.

[0009] Preferably, a fine adjustment block is fixed on the coarse adjustment block. The fine adjustment block includes an integrally formed fixing part and an adjustment part. The fixing part is fixed on the feed plate. The adjustment part has a fine adjustment groove in the direction of the feed channel. A second fastening bolt passes through the adjustment part. The second fastening bolt passes from one side of the fine adjustment groove into the other side of the fine adjustment groove in the direction closer to the fixing base. The groove spacing of the fine adjustment groove decreases, causing the fixing part to drive the feed plate to tilt away from the cutting plate of the centerless grinder.

[0010] Preferably, the lower blade and the fixing block are fixedly connected by bolts.

[0011] Preferably, the lower blade plate is provided with an adjustment hole, which is an oblong hole, and an adjustment bolt passes through the adjustment hole. The lower blade plate slides up and down and is fixed by the adjustment bolt to adjust the height of the lower blade plate.

[0012] Preferably, the blade holder further includes an upper blade and a fixed frame, the upper blade being fixed on the fixed frame, and the fixed frame being fixed on the base of the centerless grinder.

[0013] Preferably, the fixing frame includes a fixing column and a fixing beam. One end of the fixing column is fixed to the base of the centerless grinder, and both ends of the fixing beam are respectively fixed to the other end of the fixing column. The upper blade is fixed to the fixing beam.

[0014] Preferably, the cross-sectional width of the feed plate gradually increases from one side of the feed channel toward the direction away from the feed channel, so that the feed plate is engaged with the upper end of the coarse adjustment block. The upper end of the coarse adjustment block is provided with a fastening groove, and bolts pass through both sides of the fastening groove. The groove spacing of the fastening groove is reduced to fasten the feed plate.

[0015] Preferably, the feed plate has a feed groove at one end away from the lower cutter plate. The feed groove is used to place the pipe for conveying the roller. A pressure plate is pressed onto the pipe for conveying the roller. A second fastener is provided on the pressure plate. The second fastener presses the pressure plate to fix the pipe for conveying the roller.

[0016] Preferably, a centerless grinder includes a grinding wheel and a guide wheel, and also includes a workpiece support as described above.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] The width of the feeding channel is easy to adjust and has high adjustment accuracy. The width of the feeding channel can be coarsely adjusted by adjusting the distance between the two coarse adjustment blocks, and the width of the feeding channel can be finely adjusted by tilting the feeding plate by using the fine adjustment block.

[0019] The guide wheel has a long service life. The lower blade is fixed on the side of the fixed block away from the guide wheel of the centerless grinder, which increases the distance between the lower blade and the guide wheel. After the guide wheel wears out, the guide wheel can be adjusted to move closer to the lower blade and continue to be used.

[0020] The structure is robust and has good stability. The coarse adjustment block, fine adjustment block and feed plate are fastened by fastening bolts and deformation grooves. The pressure plate covers the pipeline of the conveying roller to prevent the roller from deviating in the conveying direction. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the workpiece support of the centerless grinder in the embodiments of this application.

[0022] Figure 2 This is an exploded view of the workpiece support of the centerless grinder in the embodiments of this application.

[0023] Figure 3 This is a partial structural schematic diagram of the workpiece support of the centerless grinder in an embodiment of this application.

[0024] Figure 4 This is a side view of the workpiece support of the centerless grinder in the embodiments of this application.

[0025] Figure 5 This is a schematic diagram of the connection structure between the feed plate support and the feed plate of the workpiece support of the centerless grinder in the embodiments of this application.

[0026] Figure 6 This is a three-dimensional structural schematic diagram of the centerless grinder in the embodiments of this application.

[0027] Explanation of reference numerals in the attached drawings: 1. Blade plate bracket; 2. Feed plate bracket; 11. Lower blade plate; 3. Base; 4. Feed plate; 41. Feed channel; 21. Fixed base; 22. Coarse adjustment block; 211. Protrusion; 221. Slide groove; 222. First fastener; 223. First fastening bolt; 224. Coarse adjustment groove; 23. Fine adjustment block; 231. Fixed part; 232. Adjustment part; 233. Fine adjustment groove; 234. Second fastening bolt; 225. Fastening groove; 12. Fixed block; 111. Adjustment hole; 112. Adjustment bolt; 13. Upper blade plate; 14. Fixed frame; 141. Fixed column; 142. Fixed crossbeam; 5. Feed groove; 51. Pressure plate; 52. Second fastener; 521. Fixed plate; 522. Fixed bolt; 6. Grinding wheel; 7. Guide wheel. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0029] This application discloses a workpiece support for a centerless grinder. (Refer to...) Figure 1 and Figure 2 The workpiece support of the centerless grinder includes a cutter plate support 1 and a feed plate support 2. The cutter plate support 1 includes a lower cutter plate 11, which is fixed on the base 3 of the centerless grinder. The lower cutter plate 11 cooperates with the guide wheel of the centerless grinder to place rollers for grinding by the grinding wheel of the centerless grinder. Two feed plates 4 are fixed on the feed plate support 2, and a feed channel 41 is formed between the two feed plates 4 for conveying the rollers. The feed plate support 2 includes a fixed base 21 and two coarse adjustment blocks 22. The fixed base 21 is fixed on the base 3 of the centerless grinder, and the two coarse adjustment blocks 22 are located above the fixed base 21. The two feed plates 4 are respectively fixed on the two coarse adjustment blocks 22. A protrusion 211 is fixed at the upper end of the fixed base 21 along the width direction of the feed channel 41. The lower ends of the two coarse adjustment blocks 22 are provided with slide grooves 221 for the protrusion 211 to slide. The two coarse adjustment blocks 22 slide along the protrusion 211 to make the two feed plates 4 move closer or further away, thereby changing the width of the feed channel 41 to accommodate rollers of different sizes.

[0030] A first fastener 222 is connected to the coarse adjustment block 22 to fix the coarse adjustment block 22. As a preferred embodiment, the protrusion 211 is integrally formed with the fixing base 21. The protrusion 211 is constructed as a wedge-shaped block, and the width of the protrusion 211 gradually increases from bottom to top, making it difficult for the coarse adjustment block 22 to come off the protrusion 211 in the vertical direction. The first fastener 222 is the first fastening bolt 223. The lower end of the coarse adjustment block 22 is provided with a coarse adjustment groove 224 in the vertical direction. The coarse adjustment groove 224 passes through the coarse adjustment block 22 in the length direction of the slide groove 221. The coarse adjustment groove 224 is connected to the slide groove 221. The first fastening bolt 223 passes from one side of the coarse adjustment groove 224 into the other side of the coarse adjustment groove 224. The reduction of the groove spacing of the coarse adjustment groove 224 makes the width of the slide groove 221 tend to decrease. The groove walls on both sides of the slide groove 221 are close to the sides of the protrusion 211, making it difficult for the coarse adjustment block 22 to slide off the protrusion 211.

[0031] Reference Figure 3 A fine adjustment block 23 is fixed on the coarse adjustment block 22, and the fine adjustment block 23 can be fixed to the coarse adjustment block 22 by bolts. The fine adjustment block 23 includes a fixed part 231 and an adjustment part 232 integrally formed. The fixed part 231 is located on the adjustment part 232, and the feed plate 4 is fixed on the fixed part 231. The adjustment part 232 has a fine adjustment groove 233 in the direction of the feed channel 41. The fine adjustment groove 233 passes through the adjustment part 232 in the length direction of the feed channel 41. A second fastening bolt 234 passes through the adjustment part 232. The second fastening bolt 234 passes from one side of the fine adjustment groove 233 into the other side of the fine adjustment groove 233 in the direction closer to the fixed base 21. The groove spacing of the fine adjustment groove 233 decreases, causing the fixed part 231 to drive the feed plate 4 to tilt away from the lower blade plate 11. Specifically, the fixing part 231 is located on the side of the adjusting part 232 closer to the feed plate 4, and the second fastening bolt 234 is located on the side of the fixing part 231 away from the feed plate 4. When the second fastening bolt 234 passes through the adjusting part 232 vertically, the groove walls on both sides of the fine adjusting groove 233 move closer together, making the side of the adjusting part 232 away from the feed plate 4 lower than the side of the adjusting part 232 closer to the feed plate 4. This causes the fixing part 231 on the side of the adjusting part 232 closer to the feed plate 4 to tilt the feed plate 4 outward. The outward tilting of the feed plate 4 changes the width of the feeding channel 41. Since the position of the feed plate 4 does not move, only the tilt angle changes, the degree of adjustment of the width of the feeding channel 41 is small, which is suitable for situations where fine adjustment of the feeding channel 41 is required.

[0032] Reference Figure 3 and Figure 4The feed plate 4 is snapped onto the upper end of the coarse adjusting block 22. The cross-sectional width of the feed plate 4 gradually increases from one side of the feed channel 41 towards the direction away from the feed channel 41, making it difficult for the feed plate 4 to detach from the coarse adjusting block 22 in the width direction of the feed channel 41. A fastening groove 225 is provided at the upper end of the coarse adjusting block 22. The fastening groove 225 is perpendicular to the feed plate 4 and communicates with the holes on the coarse adjusting block 22 for mounting the feed plate 4. Bolts pass through both sides of the fastening groove 225 from top to bottom. The groove spacing of the fastening groove 225 is reduced to fasten the feed plate 4. Specifically, the feed plate 4 is snapped onto the fixing part 231, and the fastening groove 225 is provided on the fixing part 231.

[0033] Reference Figure 2 The tool holder 1 includes a fixing block 12, which is fixed to the base 3 of the centerless grinder. The lower tool plate 11 is fixed to the fixing block 12. Specifically, the lower tool plate 11 and the fixing block 12 are fixedly connected by bolts. The lower tool plate 11 is installed on the side of the fixing block 12 away from the guide wheel of the centerless grinder. The lower tool plate 11 has an adjustment hole 111, which is a slotted hole and is opened vertically. An adjustment bolt 112 passes through the adjustment hole 111 and is fixed to the fixing block 12. When adjusting the height of the lower tool plate 11, the lower tool plate 11 slides up and down against the adjustment bolt 112. After reaching the appropriate position, the lower tool plate 11 is fixed to the fixing block 12 by the adjustment bolt 112 and the nut. The lower cutter plate 11 is installed on the side of the fixed block 12 away from the guide wheel of the centerless grinder, which increases the distance between the lower cutter plate 11 and the guide wheel of the centerless grinder. After the guide wheel of the centerless grinder wears, the guide wheel of the centerless grinder can be adjusted to move closer to the lower cutter plate 11 to compensate for the distance between the guide wheel and the lower cutter plate 11, thereby increasing the service life of the guide wheel of the centerless grinder to a certain extent.

[0034] Reference Figure 2 and Figure 3 The blade holder 1 also includes an upper blade 13 and a fixing frame 14. The fixing frame 14 is fixed to the base 3 of the centerless grinder, and the upper blade 13 is fixed to the fixing frame 14. The fixing frame 14 includes a fixing column 141 and a fixing beam 142. The fixing column 141 is located at both ends of the upper blade 13. One end of the fixing column 141 is fixed to the base 3 of the centerless grinder, and both ends of the fixing beam 142 are respectively fixed to the other end of the fixing column 141. The upper blade 13 is fixed to the fixing beam 142, preferably by bolts. The upper blade 13 is used to press down the roller located on the lower blade 11, restricting the movement of the roller in the vertical direction, so as to facilitate the grinding wheel of the centerless grinder to grind the roller. The detachable fixing method of the upper blade 13 and the fixing beam 142 facilitates the replacement of the upper blade 13.

[0035] Reference Figure 1 and Figure 5 The feed plate 4 has a feed trough 5 at one end away from the lower cutter plate 11. The feed trough 5 is used to place the pipe for conveying the rollers. A pressure plate 51 is pressed onto the pipe for conveying the rollers. A second fastener 52 is provided on the pressure plate 51. The second fastener 52 presses the pressure plate 51 to fix the pipe for conveying the rollers. In one embodiment, the second fastener 52 includes a fixing plate 521 and a fixing bolt 522. The fixing plate 521 is fixed on the feed trough 5 and above the pressure plate 51. The fixing bolt 522 passes through the fixing plate 521 and abuts against the pressure plate 51, so that the pressure plate 51 presses the pipe for conveying the rollers.

[0036] The thickness of the feed plate 4 at the end away from the feed trough 5 is increased, which makes the end of the feed channel 41 narrower so that the rollers output from the conveying roller pipe can fall onto the lower cutter plate 11.

[0037] The implementation principle of the workpiece support for a centerless grinder according to an embodiment of this application is as follows: The coarse adjustment block 22 slides against the protrusion 211 to adjust the distance between the two coarse adjustment blocks 22, thereby adjusting the width of the feed channel 41. The coarse adjustment blocks 22 are fixed to the fixed base 21 by the first fastening bolt 223. The second fastening bolt 234 passes through both sides of the fine adjustment groove 233, causing the adjusting part 232 to drive the fixed part 231 to tilt outwards, thereby tilting the feed plate 4 outwards to finely adjust the width of the feed channel 41. The lower cutter plate 11 is bolted to the side of the fixed block 12 away from the guide wheel of the centerless grinder, increasing the distance between the lower cutter plate 11 and the guide wheel of the centerless grinder to increase the lifespan of the guide wheel 7. The lower cutter plate 11 has a slotted hole, allowing it to slide up and down to adjust its height. The upper blade 13 is fixed above the lower blade 11 by a fixing bracket 14 to prevent the roller from coming off the lower blade 11. The upper blade 13 and the fixing beam 142 are fixed by bolts to make the upper blade 13 easy to replace.

[0038] This application also discloses a centerless grinding machine, as described in the embodiments below. Figure 1 and Figure 6The centerless grinder includes a grinding wheel 6, a guide wheel 7, a base 3, and a workpiece support. The grinding wheel 6 and the guide wheel 7 are located on opposite sides of the workpiece support. The workpiece support includes a feed plate support 2 and a cutter plate support 1. A feed plate 4 is fixed on the feed plate support 2. The feed plate support 2 includes a fixed base 21 and a coarse adjustment block 22. The fixed base 21 is fixed on the base 3. The coarse adjustment block 22 is located on both sides of the feed plate 4. The feed plate 4 is fixed to the upper end of the coarse adjustment block 22. The coarse adjustment block 22 can slide and be fixed against the fixed base 21 to adjust the distance between the feed plates 4. The blade holder 1 includes a fixing block 12, a lower blade 11, an upper blade 13, and a fixing frame 14. The fixing block 12 is fixed on the base 3. The lower blade 11 is fixed on the side of the fixing block 12 away from the guide wheel 7. The fixing frame 14 is fixed on the base 3. The upper blade 13 is fixed on the fixing frame 14. The upper blade 13 is fixed on the lower blade 11 to prevent the roller from coming off the lower blade 11.

[0039] 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 workpiece support of a centerless grinding machine, comprising a tool plate support (1) and a feed plate support (2), a feed plate (4) is fixed on the feed plate support (2), a feed passage (41) for conveying a workpiece is formed between the two feed plates (4), characterized in that: The knife plate support (1) comprises a fixed block (12) and a lower knife plate (11), the fixed block (12) is fixed on the base (3) of the centerless grinding machine, the lower knife plate (11) is fixed on the side of the fixed block (12) away from the guide wheel of the centerless grinding machine, the feeding plate support (2) comprises a fixed base (21), the fixed base (21) is fixed on the base (3) of the centerless grinding machine, two coarse adjustment blocks (22) are connected on the fixed base (21), two feeding plates (4) are respectively fixed on the upper ends of the two coarse adjustment blocks (22), the upper end of the fixed base (21) is fixed with a protrusion (211) along the width direction of the feeding channel (41), the lower ends of the two coarse adjustment blocks (22) are provided with sliding grooves (221) for the sliding of the protrusion (211), the protrusion (211) is slidably connected with the sliding groove (221), and the coarse adjustment block (22) is further provided with a first fastener (222); after the distance between the two coarse adjustment blocks (22) is adjusted by sliding, the coarse adjustment block (22) and the fixed base (21) are fixed by the first fastener (222).

2. The workpiece support of a centerless grinding machine according to claim 1, characterized in that: The protrusion (211) is a wedge-shaped block with a wide upper part and a narrow lower part, the first fastener (222) is a first fastening bolt (223), the lower end of the coarse adjustment block (22) is provided with a coarse adjustment groove (224), the coarse adjustment groove (224) is in communication with the sliding groove (221), the first fastening bolt (223) is arranged from one side of the coarse adjustment groove (224) to the other side of the coarse adjustment groove (224), and the slot interval of the coarse adjustment groove (224) is reduced to reduce the width of the sliding groove (221) to lock the protrusion (211).

3. The workpiece support of a centerless grinding machine according to claim 1, wherein: The coarse adjustment block (22) is fixed with a fine adjustment block (23), the fine adjustment block (23) comprises an integral fixed part (231) and an adjustment part (232), the fixed part (231) is fixed on the feeding plate (4), the adjustment part (232) is provided with a fine adjustment groove (233) in the direction of the feeding channel (41), a second fastening bolt (234) is arranged on the adjustment part (232), the second fastening bolt (234) is arranged from one side of the fine adjustment groove (233) to the other side of the fine adjustment groove (233) in the direction close to the fixed base (21), and the slot interval of the fine adjustment groove (233) is reduced to drive the feeding plate (4) to tilt away from the knife plate of the centerless grinding machine.

4. The workpiece support of the centerless grinding machine according to claim 1, characterized in that: The lower knife plate (11) and the fixed block (12) are fixedly connected by bolts.

5. The workpiece support of a centerless grinding machine according to claim 4, characterized in that: The lower knife plate (11) is provided with an adjusting hole (111), the adjusting hole (111) is a waist-shaped hole, an adjusting bolt (112) is arranged in the adjusting hole (111), and the lower knife plate (11) is lifted and slid and fixed by the adjusting bolt (112) to adjust the height of the lower knife plate (11).

6. The workpiece support of a centerless grinding machine according to claim 1, wherein: The knife plate frame further comprises an upper knife plate (13) and a fixing frame (14), the upper knife plate (13) is fixed on the fixing frame (14), and the fixing frame (14) is fixed on the base (3) of the centerless grinding machine.

7. A workpiece support for a centerless grinding machine according to claim 6, wherein: The fixing frame (14) comprises a fixing column (141) and a fixing beam (142), one end of the fixing column (141) is fixed on the base (3) of the centerless grinding machine, two ends of the fixing beam (142) are respectively fixed on the other end of the fixing column (141), and the upper knife plate (13) is fixed on the fixing beam (142).

8. The workpiece support of the centerless grinding machine according to claim 1, characterized in that: The cross-sectional width of the feeding plate (4) gradually increases from one side of the feeding channel (41) to the direction away from the feeding channel (41), so that the feeding plate (4) is clamped on the upper end of the coarse adjusting block (22), the upper end of the coarse adjusting block (22) is provided with a fastening groove (225), bolts pass through both sides of the fastening groove (225), and the groove spacing of the fastening groove (225) is reduced to fasten the feeding plate (4).

9. The workpiece support of the centerless grinding machine according to claim 1, characterized in that: One end of the feeding plate (4) away from the lower knife plate (11) is provided with a feeding groove (5), the feeding groove (5) is used for placing a conveying roller pipe, a pressing plate (51) is pressed on the conveying roller pipe, the pressing plate (51) is provided with a second fastener (52), and the second fastener (52) presses the pressing plate (51) to fix the conveying roller pipe.

10. A centerless grinding machine comprising a grinding wheel (6) and a guide wheel (7), characterized in that: Further comprising the workpiece support according to any one of claims 1-9. Further comprising the workpiece support according to any one of claims 1-9.

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