Guide rail polishing device

Abstract

The utility model relates to a guide rail polishing device which comprises a base, a through groove allowing a guide rail to be inserted in the length direction of the guide rail is formed in the base, when the guide rail is inserted in the through groove, the guide rail can be matched with the through groove in a guiding mode and slide back and forth in the length direction of the through groove, and a scraper is installed in the through groove. When the guide rail slides in the through groove, the blade of the scraper can abut against the two side opening edges of the opening of the guide rail respectively and move in the length direction of the side opening edges. The guide rail is manually pushed to slide in the through groove, burrs on the edge of each side of the opening of the guide rail are scraped through the scraper, manual polishing of the burrs of the opening of the guide rail is achieved, and compared with the prior art, the manual polishing device is simple in structure, safe and reliable to operate and capable of effectively guaranteeing the polishing effect on the guide rail.

Description

Technical Field

[0001] This utility model relates to the field of guide rail processing, and in particular to a guide rail grinding device. Background Technology

[0002] Guide rails are common components in the manufacturing of household appliances. For example, they are used in the door structure of household appliances, such as the household appliance disclosed in Chinese Utility Model Patent No. ZL202321343993.3 (Authorization Announcement No. CN219680410U), which includes a housing, a door body, and a door hinge assembly, the hinge assembly of which also includes a guide rail. Guide rails are generally made by cutting and bending metal sheets, leaving burrs at the openings. To ensure the quality of the guide rail, these burrs need to be polished. Currently, automatic polishing is generally achieved through electric polishing mechanisms, as seen in Chinese Invention Patent Application No. CN202411004889.0 (Publication No. CN118578135A) and Chinese Utility Model Patent No. ZL202421070582.6 (Authorization Announcement No. CN222307002U).

[0003] However, existing automated grinding methods have the following problems: Current grinding mechanisms typically fix the guide rail to be processed onto a fixture, and then drive the grinding device to move inside the guide rail to achieve deburring. However, due to the limitations of the guide rail structure, the stability of the guide rail on the fixture is poor, and the guide rail is prone to movement during grinding, affecting the grinding effect. Furthermore, the rapid movement of the grinding device inside the guide rail during grinding poses a safety hazard to operators and requires significant safety protection measures. Adding protective facilities would complicate the fixture structure and increase its production cost. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a guide rail grinding device that is simple in structure, safe and reliable in operation, and can guarantee the grinding effect on the guide rail.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a guide rail grinding device, characterized in that it includes a base, in which a through groove is provided for the guide rail to be inserted along its own length direction. When the guide rail is inserted in the through groove, the guide rail can slide back and forth along the length direction of the through groove in a guiding cooperation with the through groove. A scraper is installed in the through groove. When the guide rail slides in the through groove, the blade of the scraper can abut against the two sides of the opening of the guide rail and move along the length direction of each side opening.

[0006] Furthermore, the cross-sectional size of the through groove matches the cross-sectional size of the guide rail, thereby ensuring the guiding fit between the guide rail and the through groove. The scraper is located at the center of the through groove along its width direction, and the scraper includes a first cutting head and a second cutting head, which are arranged side by side along the width direction of the through groove. The first cutting edge of the first cutting head is used to abut against one side edge of the guide rail opening, while the second cutting edge of the second cutting head is used to abut against the other side edge. In this way, the first and second cutting heads can effectively scrape away burrs on the edges of the guide rail opening.

[0007] Furthermore, the first cutting edge of the first cutter head and the second cutting edge of the second cutter head extend outward from bottom to top relative to the through groove. On the one hand, this ensures that the cutting edge of each cutter head reliably abuts against the corresponding side edge of the guide rail opening; on the other hand, it makes the scraper suitable for scraping guide rails with different opening widths, which is beneficial to improving the versatility of this utility model.

[0008] Furthermore, both the first and second cutting heads are block shapes, and their opposite outer surfaces are inclined planes sloping outwards from top to bottom, forming the cutting edges of their respective heads. This ensures effective burr removal and avoids chipping of the cutting edges during grinding, thus extending the lifespan of the scraper.

[0009] Furthermore, a tool holder is provided along the length of the through groove, and the tool holder is located at the center of the through groove along its width. The first and second cutting heads are mounted on one side of the tool holder. When the guide rail slides in the through groove, only the cutting edge of each cutting head is in contact with the guide rail. This ensures the scraper is securely installed in the through groove and prevents scratching the inner surface of the guide rail during grinding.

[0010] Furthermore, one side of the tool holder is a mounting plane for mounting the first and second cutting heads, and this mounting plane extends along the cross-sectional direction of the through groove.

[0011] A vertically extending limiting block protrudes from the center of the mounting plane along the width of the through groove. The limiting block has a first limiting slope and a second limiting slope on each side. Both the first and second cutting heads are triangular in shape and are mounted on either side of the limiting block using assembly bolts. When each cutting head is in place, the limiting slope abuts against the corresponding side of the cutting head. This ensures accurate installation of each cutting head, guaranteeing that the cutting edges of each head abut against the edges of the guide rail opening, thus ensuring effective burr removal. Furthermore, the limiting block, while ensuring accurate installation, prevents displacement of the cutting heads during grinding, further enhancing the burr removal effect.

[0012] Furthermore, the base is elongated, and the aforementioned through groove extends through the base along its length. A first locking hole and a mounting hole are vertically provided on the bottom wall of the base directly below the tool holder, while a second locking hole is vertically provided on the tool holder.

[0013] With the tool holder installed in the through slot, the second locking hole on the tool holder is vertically aligned with the first locking hole on the base, and the two are locked together by locking bolts that pass through from bottom to top. A counter-bolt passes through the mounting hole from bottom to top, with the free end of the counter-bolt's shank abutting against the bottom surface of the tool holder. This locking bolt, through the tool holder, locks the tool holder to the base, causing a downward pulling force on the tool holder, while the counter-bolt causes an upward holding force. When the pulling force and holding force on the tool holder are balanced, the tool holder can be stably installed in the through slot. Furthermore, by adjusting the locking bolts and the counter-bolt, the height of the tool holder can be adjusted, thereby adjusting the height of the scraper so that the scraper's blade better abuts against the edge of the guide rail opening. This also allows the invention to be applied to grinding guide rails of various sizes.

[0014] Furthermore, the second locking hole is located in the center of the tool holder, and there are at least three mounting holes spaced circumferentially around the first locking hole, with the diameter of the first locking hole being larger than the diameter of each mounting hole. This allows the tool holder to be more securely installed in the through slot.

[0015] Furthermore, a positioning groove matching the lower part of the tool holder is recessed on the bottom surface of the through groove. When the tool holder is installed in the through groove, the lower part of the tool holder is embedded in the positioning groove. Positioning the tool holder through the positioning groove ensures that the tool holder is accurately installed in the through groove, and also further improves the stability of the tool holder installation.

[0016] Furthermore, the base is elongated, and the aforementioned through groove extends through the base along its length. The base includes a square base block extending along its length, and a first groove and a second groove are respectively provided along the length of the base block on its top surface. The first groove and the second groove are spaced apart along the width of the base block.

[0017] The aforementioned base also includes elongated guide blocks and cover plates. There are two guide blocks, each corresponding to the first and second grooves, and each guide block is embedded in its corresponding groove along its length and fixed by a first mounting bolt. There are at least two cover plates, each positioned along the width of the base block and spaced evenly along its length. Both ends of each cover plate are fixed to the corresponding guide block by a second mounting bolt, so that the base block, guide blocks, and cover plates form the through groove. This allows for the assembly of the base and the effective construction of the through groove within the base.

[0018] Compared with the prior art, the advantages of this utility model are as follows: the base is provided with a through groove, and a scraper is provided in the through groove. When the guide rail slides in the through groove, the blade of the scraper can abut against the two sides of the guide rail opening and move along the length direction of each side edge. In this way, the guide rail is manually pushed to slide in the through groove, and the scraper is used to scrape off the burrs on each side edge of the guide rail opening, thus realizing the manual polishing of the burrs on the guide rail opening.

[0019] Compared with the prior art, this utility model has a simple structure, is easy to operate, and is safe and reliable, effectively ensuring the grinding effect on the guide rail. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the guide rail grinding device in an embodiment of the present invention;

[0021] Figure 2 for Figure 1 A structural diagram from another direction;

[0022] Figure 3 for Figure 1 Another structural diagram in another direction;

[0023] Figure 4 This is a cross-sectional view of the guide rail grinding device in an embodiment of this utility model;

[0024] Figure 5 This is a partial structural schematic diagram of the guide rail grinding device in an embodiment of this utility model;

[0025] Figure 6 for Figure 5 Enlarged view of section A;

[0026] Figure 7 This is a partial exploded view of the guide rail grinding device in an embodiment of this utility model;

[0027] Figure 8 This is an exploded view of another part of the guide rail grinding device in this embodiment of the present invention;

[0028] Figure 9 This is another partial exploded view of the guide rail grinding device in this embodiment of the present invention;

[0029] Figure 10 for Figure 9 A structural diagram in another direction. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Since the embodiments disclosed in this utility model can be arranged in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0032] like Figures 1-10 As shown, a guide rail grinding device includes a base 1 with a through groove 10 for inserting a guide rail 2 along its length. When the guide rail 2 is inserted into the through groove 10, it can slide back and forth along the length of the through groove 10, guided by the groove. A scraper 3 is installed in the through groove 10. While the guide rail 2 is sliding in the through groove 10, the blade of the scraper 3 can abut against the two sides of the opening 20 of the guide rail 2 and move along the length of each side edge.

[0033] As can be seen from the above, the base 1 of this utility model is provided with a through groove 10, and a scraper 3 is provided in the through groove 10. When the guide rail 2 slides in the through groove 10, the blade of the scraper 3 can abut against the two sides of the opening 20 of the guide rail 2 and move along the length direction of each side edge. In this way, the guide rail 2 is manually pushed to slide in the through groove 10, and the scraper 3 is used to scrape off the burrs on each side edge of the opening 20 of the guide rail 2, thereby realizing the manual polishing of the burrs on the opening 20 of the guide rail 2. Compared with the prior art, this utility model has a simple structure, is safe and reliable to operate, and can effectively ensure the polishing effect of the guide rail 2.

[0034] Furthermore, the cross-sectional size of the aforementioned through groove 10 matches the cross-sectional size of the guide rail 2, thereby ensuring the guiding fit between the guide rail 2 and the through groove 10. The aforementioned scraper 3 is disposed at the center of the through groove 10 along its width direction, and the scraper 3 includes a first cutting head 31 and a second cutting head 32, which are arranged side-by-side along the width direction of the through groove 10. The first cutting edge 311 of the first cutting head 31 abuts against one side edge of the opening 20 of the guide rail 2, while the second cutting edge 321 of the second cutting head 32 abuts against the other side edge, as shown below. Figure 3As shown. In this way, the first cutter head 31 and the second cutter head 32 can effectively scrape off the burrs on each side edge of the opening 20 of the guide rail 2.

[0035] Preferably, such as Figure 3 As shown, the first cutting edge 311 of the first cutting head 31 and the second cutting edge 321 of the second cutting head 32 extend outward from bottom to top relative to the through groove 10. This ensures reliable contact between the cutting edge of each cutting head and the corresponding side edge of the opening 20 of the guide rail 2, and also allows the scraper 3 to be used for scraping guide rails 2 with different opening widths 20, thus improving the versatility of this invention. Specifically, in this embodiment, both the first cutting head 31 and the second cutting head 32 are block shapes, and their opposite outer surfaces are inclined surfaces extending outward from top to bottom, forming the cutting edges of their respective cutting heads. This ensures effective burr removal and avoids notches on the cutting edges during grinding, thus extending the service life of the scraper 3.

[0036] Furthermore, a tool holder 4 is provided along the length of the aforementioned through groove 10, and the tool holder 4 is located at the center of the through groove 10 along the width direction. The first cutting head 31 and the second cutting head 32 are mounted on one side of the tool holder 4. When the guide rail 2 slides in the aforementioned through groove 10, only the cutting edge portion of each cutting head of the tool holder 4 is in contact with the guide rail 2. Figure 3 As shown. On the one hand, it ensures the stable installation of the scraper 3 in the through groove 10, and on the other hand, it avoids scratching the inner surface of the guide rail 2 during the grinding process.

[0037] Furthermore, such as Figure 9 and Figure 10 As shown, preferably, one side of the aforementioned tool holder 4 is a mounting plane 40 for mounting the first tool head 31 and the second tool head 32, and this mounting plane 40 extends along the cross-sectional direction of the through groove 10. A vertically extending limiting block 42 protrudes from the center of the mounting plane 40 along the width direction of the through groove 10. The limiting block 42 has a first limiting inclined surface 421 and a second limiting inclined surface 422 on both sides. The first tool head 31 and the second tool head 32 are both triangular in shape and are respectively mounted on both sides of the limiting block 42 by assembly bolts 7. Furthermore, when each tool head is installed in place, each limiting inclined surface abuts against the corresponding side of the corresponding tool head. Preferably, in this embodiment, each limiting inclined surface abuts against the corresponding side of the corresponding tool head along its own length direction. This ensures accurate installation of each cutter head, guaranteeing that the cutting edge of each cutter head abuts against the edges of the opening 20 on the guide rail 2, thereby ensuring the burr removal effect. Furthermore, the limiting block 42 ensures accurate installation of each cutter head while preventing displacement of each cutter head during the grinding process, which further helps to guarantee the burr removal effect.

[0038] Furthermore, the base 1 is elongated, and the through groove 10 extends through the base 1 along its length. A first locking hole 113 and a mounting hole 114 are vertically provided on the bottom wall of the base 1 directly below the tool holder 4, while a second locking hole 41 is vertically provided on the tool holder 4. When the tool holder 4 is installed in the through groove 10, the second locking hole 41 on the tool holder 4 and the first locking hole 113 on the base 1 are vertically aligned and locked together by locking bolts 5 passed sequentially from bottom to top. A counter-bolt 6 passes through the mounting hole 114 from bottom to top, and the free end of the counter-bolt 6 abuts against the bottom surface of the tool holder 4. In this way, the locking bolt 5 is locked onto the base 1 by the tool holder 4, so that the tool holder 4 is subjected to a downward pulling force, while the anti-top bolt 6 causes the tool holder 4 to be subjected to an upward holding force. When the pulling force and the holding force on the tool holder 4 are balanced, the tool holder 4 can be stably installed in the through groove 10. Furthermore, by adjusting each locking bolt 5 and anti-top bolt 6, the height of the tool holder 4 can be adjusted, thereby adjusting the height of the scraper 3 so that the blade of the scraper 3 can better abut against the edge of the opening 20 of the guide rail 2. At the same time, this utility model can be applied to grinding guide rails 2 of more specifications.

[0039] Preferably, the second locking hole 41 is located at the center of the tool holder 4, and there are at least three mounting holes 114 spaced circumferentially around the first locking hole 113, with the diameter of the first locking hole 113 being larger than the diameter of each mounting hole 114. This allows the tool holder 4 to be more securely installed in the through groove 10. Specifically, in this embodiment, there are four mounting holes 114.

[0040] More preferably, such as Figure 7 and Figure 8 As shown, a positioning groove 16 matching the lower part of the tool holder 4 is recessed on the bottom surface of the through groove 10. When the tool holder 4 is installed in the through groove 10, its lower part is embedded in the positioning groove 16. Positioning the tool holder 4 through the positioning groove 16 ensures accurate installation in the through groove 10 and further improves the stability of the tool holder 4 installation. In this embodiment, the first locking hole 113 and each mounting hole 114 are all located in the positioning groove 16. Figure 8 As shown.

[0041] Furthermore, in this embodiment, the base 1 specifically includes a square base block 11 extending along its own length direction. A first groove 111 and a second groove 112 are respectively provided on the top surface of the base block 11 along its own length direction. The first groove 111 and the second groove 112 are spaced apart along the width direction of the base block 11. The base 1 also includes elongated guide blocks 12 and a cover plate 13. There are two guide blocks 12, each corresponding to the first groove 111 and the second groove 112, and each guide block 12 is embedded in its corresponding groove along its own length direction and fixed by a first mounting bolt 14. Figure 1 As shown, there are at least two cover plates 13. Each cover plate 13 is arranged along the width direction of the base block 11 and is evenly spaced along the length direction of the base block 11. Both ends of each cover plate 13 are fixed to the corresponding guide block 12 by the second mounting bolts 15, so that the base block 11, each guide block 12 and each cover plate 13 form the through groove 10, thereby enabling the assembly of the base 1 and constructing the through groove 10 in the base 1.

Claims

1. A guide rail grinding device, characterized in that, Includes a base (1), which has a through groove (10) for inserting a guide rail (2) along its own length direction. When the guide rail (2) is inserted into the through groove (10), the guide rail (2) can slide back and forth along the length direction of the through groove (10) in a guiding fit. A scraper (3) is installed in the through groove (10). When the guide rail (2) slides in the through groove (10), the blade of the scraper (3) can abut against the two sides of the opening (20) of the guide rail (2) and move along the length direction of each side opening.

2. The guide rail grinding device as described in claim 1, characterized in that, The cross-sectional size of the through groove (10) matches the cross-sectional size of the guide rail (2). The scraper (3) is located at the center of the through groove (10) along the width direction. The scraper (3) includes a first cutter head (31) and a second cutter head (32). The first cutter head (31) and the second cutter head (32) are arranged side by side along the width direction of the through groove (10). The first cutting edge (311) of the first cutter head (31) is used to abut against one side edge of the opening (20) of the guide rail (2), while the second cutting edge (321) of the second cutter head (32) is used to abut against the other side edge.

3. The guide rail grinding device as described in claim 2, characterized in that, The first cutting edge (311) of the first cutting head (31) and the second cutting edge (321) of the second cutting head (32) extend outward from bottom to top relative to the through groove (10).

4. The guide rail grinding device as described in claim 2 or 3, characterized in that, The first cutter head (31) and the second cutter head (32) are both blocks, and their opposite outer surfaces are inclined surfaces that slope outward from top to bottom, and respectively form the cutting edge of the cutter head.

5. The guide rail grinding device as described in claim 4, characterized in that, A tool holder (4) is provided in the through groove (10) along its own length direction, and the tool holder (4) is located at the center of the through groove (10) along the width direction. The first cutter head (31) and the second cutter head (32) are installed on one side of the tool holder (4). When the guide rail (2) slides in the through groove (10), only the cutting edge of each cutter head is in contact with the guide rail (2) in the tool holder (4) and each cutter head.

6. The guide rail grinding device as described in claim 5, characterized in that, One side of the tool holder (4) is a mounting plane (40) for mounting the first tool head (31) and the second tool head (32), and the mounting plane (40) extends along the cross-sectional direction of the through groove (10). The mounting plane (40) is provided with a vertically extending limiting block (42) protruding from the middle of the width direction of the through groove (10). The limiting block (42) has a first limiting inclined surface (421) and a second limiting inclined surface (422) on both sides. The first cutter head (31) and the second cutter head (32) are both triangular in shape and are respectively installed on both sides of the limiting block (42) by assembly bolts (7). When each cutter head is installed in place, each limiting inclined surface abuts against the corresponding side of the corresponding cutter head.

7. The guide rail grinding device as described in claim 5, characterized in that, The base (1) is elongated, and the through groove (10) extends through the base (1) along its length. A first locking hole (113) and a mounting hole (114) are vertically provided on the bottom wall of the base (1) directly below the tool holder (4), while a second locking hole (41) is vertically provided on the tool holder (4). With the tool holder (4) installed in the through groove (10), the second locking hole (41) on the tool holder (4) and the first locking hole (113) on the base (1) are directly opposite each other, and the two are locked by locking bolts (5) that pass through from bottom to top. A counter-rotating bolt (6) passes through the mounting hole (114) from bottom to top, and the free end of the rod of the counter-rotating bolt (6) abuts against the bottom surface of the tool holder (4).

8. The guide rail grinding device as described in claim 7, characterized in that, The second locking hole (41) is located in the center of the tool holder (4). There are at least three mounting holes (114) that are evenly spaced around the first locking hole (113) in the circumferential direction. The diameter of the first locking hole (113) is larger than the diameter of each mounting hole (114).

9. The guide rail grinding device as described in claim 7, characterized in that, The bottom surface of the through groove (10) is recessed with a positioning groove (16) that matches the lower part of the tool holder (4). When the tool holder (4) is installed in the through groove (10), the lower part of the tool holder (4) is embedded in the positioning groove (16).

10. The guide rail grinding device according to any one of claims 1 to 3, characterized in that, The base (1) is elongated, and the aforementioned through groove (10) extends through the base (1) along its length. The base (1) includes a square base block (11) extending along its length. A first groove (111) and a second groove (112) are respectively provided on the top surface of the base block (11) along its length. The first groove (111) and the second groove (112) are spaced apart along the width direction of the base block (11). The base (1) further includes a long strip-shaped guide block (12) and a cover plate (13). There are two guide blocks (12) and they correspond to the first groove (111) and the second groove (112) respectively. The guide blocks (12) are respectively embedded in the corresponding grooves along their own length direction and fixed by the first mounting bolt (14). There are at least two cover plates (13). Each cover plate (13) is arranged along the width direction of the base block (11) and is evenly spaced along the length direction of the base block (11). The two ends of each cover plate (13) are respectively fixed to the corresponding guide block (12) by the second mounting bolt (15) so that the base block (11), each guide block (12) and each cover plate (13) form the through groove (10).

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