Grinding wheel dresser mounting structure for grinding machine tool

Abstract

The utility model discloses a grinding wheel dresser mounting structure for a grinding machine tool. The grinding wheel dresser mounting structure comprises a storage box in front of a workbench, a bottom plate connected in the storage box in a sliding mode, a grinding wheel dresser detachably connected to the bottom plate and a buckle cover movably connected to the storage box. A connecting rod is arranged between the inner bottom of the storage box and the bottom plate; when the grinding wheel dresser dresses a grinding wheel, the connecting rod is longitudinally arranged to form a self-locking structure, and stable support is provided for the grinding wheel dresser; when the grinding wheel dresser is located at the lower limit position, the grinding wheel dresser is contained and wrapped in the containing box, and impurities generated in the working process of the grinding machine tool are prevented from splashing to the grinding wheel dresser. The grinding wheel dresser not only can be used for dressing the arc surface of the grinding wheel, but also can be used for dressing the end surface of the grinding wheel. And the grinding wheel dresser is arranged right in front of the workbench, so that the grinding wheel dresser can be conveniently maintained, replaced and the like manually.

Description

Technical Field

[0001] This utility model belongs to the field of grinding machine tool technology, and in particular relates to a grinding wheel dresser mounting structure for grinding machine tools. Background Technology

[0002] In the surface grinder industry, the traditional installation methods for grinding wheel dressers are typically as follows: 1. Installation on the left side of the worktable: This occupies lateral space and requires extending the worktable stroke to avoid grinding wheel interference; 2. Installation on the right side of the worktable: Similar to the left-side installation, this method suffers from low space utilization and interference risk; 3. Installation on the top of the grinding wheel: This requires increasing the vertical stroke, leading to structural complexity. These methods have the following drawbacks: Low repeatability: The relative position of the dresser and the grinding wheel changes with the movement of the worktable, resulting in significant cumulative errors; Space limitations: To avoid interference, the worktable stroke needs to be lengthened, increasing machine tool size and manufacturing costs; Reduced efficiency: The extra stroke leads to a longer dressing cycle, affecting processing efficiency; Lack of dynamic accuracy: As the outer diameter of the grinding wheel wears down, traditional fixed dressers require frequent manual height adjustments, causing dressing trajectory deviations and reducing equipment uptime due to manual intervention.

[0003] Chinese patent document CN205074929U discloses a novel grinding wheel dresser for a surface grinder, comprising a bed, a worktable on the bed, a grinding wheel mounted on the bed above the worktable, a grinding head for mounting the grinding wheel, a diamond pen positioned below the grinding wheel on the side of the worktable, a pen holder fitted onto the lower part of the diamond pen, and a connecting arm mounted on the bed outside the pen holder. This novel grinding wheel dresser for surface grinders uses bolts to securely mount the pen holder, which is not placed on the worktable and can remain mounted on the bed without disassembly.

[0004] In the aforementioned patented solution, the diamond dressing tool is always mounted on the machine bed. During the operation of the surface grinder, grinding wheel debris, grinding residue, and coolant will splash onto the diamond dressing tool. Therefore, before dressing the grinding wheel, the diamond dressing tool mounted on the machine bed needs to be cleaned and maintained; otherwise, the dressing effect and service life of the diamond dressing tool will be reduced. However, the diamond dressing tool is installed behind the worktable on the machine bed, far from the operator's standing position. The operator cannot easily access the diamond dressing tool, and it is inconvenient to clean and maintain it. Moreover, it requires more space in the machine tool, making it impractical for most users. Utility Model Content

[0005] To overcome the technical problem of existing grinding wheel dressers located behind the worktable on the machine bed being inconvenient to clean and maintain, while those located in front of the worktable, although easier to clean and maintain, are prone to collisions during loading and unloading. One objective of this invention is to provide a grinding wheel dresser mounting structure for grinding machine tools. By installing a connecting rod in front of the worktable for adjusting the longitudinal height of the grinding wheel dresser, the dresser is covered by a storage box when at its lower limit position, facilitating loading and unloading and preventing contamination of the dresser. When the dresser is at its upper limit position, the two connecting rods provide longitudinal support, forming a self-locking mechanism to ensure the stability of the dresser's position.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a grinding wheel dresser mounting structure for a grinding machine tool, comprising a storage box located in front of the worktable on the machine bed, a base plate slidably connected longitudinally within the storage box, a grinding wheel dresser detachably connected to the upper end of the base plate, and a cover movably connected to the storage box; the storage box has an opening at its upper end, and the cover can selectively close the opening; two sets of connecting rods are provided between the bottom of the storage box and the base plate; each set of connecting rods includes two rods whose ends are rotatably connected to each other, wherein the other end of one connecting rod is rotatably connected to the bottom of the storage box, and the other end of the other connecting rod is rotatably connected to the base plate; when the grinding wheel dresser dresses the grinding wheel, the connecting rods are arranged longitudinally.

[0007] The grinding wheel dresser is located on the same vertical plane as the grinding wheel. The grinding wheel moves back and forth in a straight line along the central axis of the bed. The longitudinal height of the grinding wheel is adjusted so that the grinding wheel dresser grinds the grinding wheel to dress it.

[0008] Specifically, an eccentric column is provided on the connecting rod rotatably connected to the storage box; the axis of the eccentric column is parallel to and does not coincide with the rotation axis of the corresponding connecting rod; a linkage plate is slidably connected to the inner bottom of the storage box; multiple drive slots are provided on the linkage plate; and the eccentric column is located in the drive slot.

[0009] Specifically, a lead screw is rotatably connected to the linkage plate; a threaded hole is provided on the bed for threaded connection with the lead screw; and a handwheel is provided at the end of the lead screw away from the linkage plate.

[0010] The handwheel rotation causes the lead screw to drive the linkage plate to slide; the sliding of the linkage plate causes the eccentrically set eccentric column to rotate, which in turn causes the connecting rod to rotate, thereby switching the height of the grinding wheel dresser. The structure is compact and the operation is simple and convenient.

[0011] Optionally, the grinding wheel dresser includes a base detachably connected to the upper end of the base plate and a bracket horizontally disposed on the upper end of the base; the upper end of the bracket is provided with two V-shaped surfaces spaced apart, the two V-shaped surfaces having opposite inclination directions; a diamond pen is disposed on each of the two V-shaped surfaces.

[0012] Specifically, the upper end of the bracket is provided with a flat surface; the flat surface is located on the side of the two V-shaped surfaces near the workbench; a diamond pen is provided on the upper end of the flat surface.

[0013] The two V-shaped surfaces are perpendicular to each other; the diamond pen on the V-shaped surface abuts against the end face of the grinding wheel to achieve grinding and dressing; the diamond pen on the flat surface grinds and dresses the arc surface of the grinding wheel, making the arc surface perpendicular to the end face.

[0014] Specifically, the grinding wheel dresser has various specifications; the angle between the diamond tip and the V-shaped surface is different for each specification of the grinding wheel dresser.

[0015] The diamond pen with different included angles can trim the intersection line of the end face and the arc surface of the grinding wheel to different angles, which is suitable for different grinding requirements and helps to improve the grinding accuracy of the grinding wheel.

[0016] Optionally, the grinding wheel dresser includes a base detachably connected to the upper end of the base plate, a bracket longitudinally arranged on the upper end of the base, and a crossbar with one end arranged on the bracket; the other end of the crossbar is inclined with an end bevel; and a diamond pen is arranged on the end bevel.

[0017] Furthermore, one side of the cover is provided with a sliding shaft that is rotatably connected to the storage box; the other side of the cover is provided with an elastic edge that engages with the storage box; and an extension plate is provided on the elastic edge.

[0018] Specifically, the storage box has a longitudinal sliding groove on its side wall; the sliding shaft is located in the longitudinal sliding groove; the sliding shaft can be selectively slid along the longitudinal sliding groove.

[0019] The cover snaps onto the top of the storage box to seal its opening, preventing grinding wheel debris, grinding residue, and coolant from splashing onto the grinding wheel dresser. When the cover is opened, it slides downward along the longitudinal groove, leaving sufficient space at the top of the storage box to prevent interference with the grinding wheel and related components.

[0020] Furthermore, a positioning post is longitudinally arranged in the middle of the two opposite side walls of the storage box; the side of the base plate facing the workbench abuts against the positioning post; two slide rails are respectively arranged on the two opposite side walls of the storage box; the slide rails are located between the positioning post and the side wall of the storage box away from the workbench; and four triangular openings are provided on the base plate, which are slidably connected to the corresponding slide rails.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] 1. When the grinding wheel dresser is in the upper limit position, the connecting rod is longitudinally arranged to form a self-locking structure, which provides stable support for the grinding wheel dresser, helps to ensure structural strength, and also improves the dressing effect and accuracy of the grinding wheel dresser; when the grinding wheel dresser is in the lower limit position, it is stored and covered in the storage box to prevent impurities generated during the operation of the grinding machine from splashing onto the grinding wheel dresser, thereby improving the service life of the grinding wheel dresser and reducing the preparation time of the grinding wheel dressing process.

[0023] 2. Grinding wheel dressers come in two forms. The first form can dress not only the arc surface of the grinding wheel but also the end face of the grinding wheel, improving the perpendicularity between the end face and the arc surface, thereby improving the grinding accuracy of the grinding wheel. The second form further simplifies the structure and reduces costs. Users can flexibly adjust the installation of the two forms of grinding wheel dressers according to the required machining accuracy, thereby reducing costs and increasing efficiency.

[0024] 3. Place the grinding wheel dresser directly in front of the workbench to facilitate manual maintenance and replacement. At the same time, the grinding wheel dresser can be stored in the storage box to prevent it from being bumped or knocked during the loading process on the workbench.

[0025] 4. Improved repeatability of this invention: The center point of the grinding wheel dresser and the grinding wheel is constant, eliminating relative position deviation, and the measured accuracy is improved to ±0.002mm; Space optimization: Saves ≥30% of the transverse travel, making the machine tool structure more compact; Enhanced anti-interference: The grinding wheel's forward and backward movement does not require lateral avoidance, completely avoiding the risk of collision; Reduced maintenance costs: Simplifies the transmission chain, reducing the failure rate by 40%. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0028] Figure 3 This is a structural schematic diagram of Embodiment 2 of the present invention;

[0029] Figure 4 This is a schematic diagram of the base plate and connecting rod of this utility model;

[0030] Figure 5 This is a schematic diagram of the structure of the snap-on cover of this utility model;

[0031] Figure 6 This is a schematic diagram of the structure of the storage box of this utility model.

[0032] In the diagram: 1. Bed; 2. Worktable; 31. Transverse feed section; 32. Longitudinal feed section; 33. Grinding wheel; 41. Base; 411. Spacing groove; 42. Bracket; 421. V-shaped surface; 422. Flat surface; 43. Diamond pen; 44. Fastening screw; 45. Crossbar; 451. End bevel; 51. Base plate; 511. Triangular opening; 52. Connecting rod; 521. Eccentric column; 53. Linkage plate; 531. Drive groove; 54. Lead screw; 541. Handwheel; 6. Collection tray; 61. Storage box; 62. Longitudinal slide groove; 63. Positioning column; 64. Slide rail; 65. Positioning shaft; 66. Rib plate; 67. Threaded hole; 68. Slot; 7. Cover; 71. Sliding shaft; 72. Elastic edge; 73. Extension plate. Detailed Implementation

[0033] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0034] In the description of this utility model, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. They should not be construed as limiting the specific protection scope of this utility model.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In this description of the utility model, "a number" means two or more, unless otherwise explicitly specified.

[0036] In this utility model, unless otherwise explicitly specified and limited, terms such as "set" and "install" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] See Figures 1-6 A grinding wheel dresser mounting structure for a grinding machine tool, the grinding machine tool including a bed 1, a worktable 2 horizontally slidably connected to the upper end of the bed 1, a collection tray 6 disposed on the bed 1 and located below the worktable 2, a longitudinal feed section 32 disposed at the rear of the bed 1, a transverse feed section 31 disposed on the moving end of the longitudinal feed section 32, and a grinding wheel 33 rotatably connected to the front end of the moving end of the transverse feed section 31.

[0038] A storage box 61 is provided on the collection tray 6 in front of the workbench 2; a base plate 51 is slidably connected to the storage box 61 in the longitudinal direction; a grinding wheel dresser is detachably connected to the upper end of the base plate 51; an opening is provided at the upper end of the storage box 61; and a cover 7 for closing the opening is movably connected to the storage box 61.

[0039] Two sets of connecting rods 52 are provided between the bottom of the storage box 61 and the base plate 51; each set of connecting rods 52 includes two rods whose ends are rotatably connected to each other, wherein the other end of one connecting rod 52 is rotatably connected to the bottom of the storage box 61, and the other end of the other connecting rod 52 is rotatably connected to the base plate 51; a positioning shaft 65 is provided at the bottom of the storage box 61, which is rotatably connected to the corresponding connecting rod 52.

[0040] An eccentric column 521 is provided on the connecting rod 52 rotatably connected to the storage box 61; the axis of the eccentric column 521 is parallel to and does not coincide with the rotation axis of the corresponding connecting rod 52; a linkage plate 53 is slidably connected to the inner bottom of the storage box 61; four drive slots 531 are provided on the linkage plate 53; the eccentric column 521 is located in the drive slots 531.

[0041] A lead screw 54 is rotatably connected to the linkage plate 53; a threaded hole 67 is provided on the bed 1 to be threadedly connected to the lead screw 54; a handwheel 541 is provided at the end of the lead screw 54 away from the linkage plate 53.

[0042] The storage box 61 has positioning posts 63 longitudinally arranged in the middle of the left and right side walls; the bottom plate 51 abuts against the positioning posts 63 on the side facing the workbench 2; the storage box 61 has two slide rails 64 on the left and right side walls respectively; the slide rails 64 are located between the positioning posts 63 and the side wall of the storage box 61 away from the workbench 2; the bottom plate 51 has four triangular openings 511 that are slidably connected to the corresponding slide rails 64.

[0043] One side of the cover 7 is provided with a sliding shaft 71 that is rotatably connected to the storage box 61; the other side of the cover 7 is provided with an elastic edge 72 that engages with the storage box 61; the outer wall of the storage box 61 is provided with a slot 68 that can engage with the elastic edge 72; the elastic edge 72 is provided with an extension plate 73 for easy manipulation. The front and rear outer side walls of the storage box 61 are longitudinally provided with longitudinal sliding grooves 62; the sliding shaft 71 is located within the longitudinal sliding grooves 62; the sliding shaft 71 can selectively slide along the longitudinal sliding grooves 62. Multiple evenly distributed reinforcing ribs 66 are provided between the storage box 61 and the collection tray 6.

[0044] Example 1 (e.g.) Figure 2 (As shown): The grinding wheel dresser includes a base 41 detachably connected to the upper end of the base plate 51 and a bracket 42 horizontally disposed on the upper end of the base 41; the upper end of the bracket 42 is provided with two spaced-apart V-shaped surfaces 421, which are perpendicular to each other; a diamond pen 43 is disposed on each of the two V-shaped surfaces 421. The upper end of the bracket 42 is provided with a plane 422; the plane 422 is located on the side of the two V-shaped surfaces 421 near the worktable 2; the diamond pen 43 is disposed on the upper end of the plane 422.

[0045] The grinding wheel dresser has various specifications; the angle between the diamond pen 43 and the V-shaped surface 421 is different for each specification of the grinding wheel dresser; the different inclination angles of the insertion holes on the V-shaped surface 421 for inserting the diamond pen 43 result in various specifications of the grinding wheel dresser; the bracket 42 is threaded with multiple fastening screws 44 for fixing the diamond pen.

[0046] Example 2 (e.g.) Figure 3 As shown): The grinding wheel dresser includes a base 41 detachably connected to the upper end of the base plate 51, a bracket 42 longitudinally arranged on the upper end of the base 41, and a crossbar 45 with one end arranged on the bracket 42; the other end of the crossbar 45 is inclined with an end bevel 451; a diamond pen 43 is arranged on the end bevel 451.

[0047] The base 41 has a longitudinal hole at its upper end; the bracket 42 is inserted into the longitudinal hole; the base 41 has a spacer groove 411 communicating with the longitudinal hole; the bracket 42 has a transverse hole at its upper end; the crossbar 45 is inserted into the transverse hole; and the bracket 42 has a screw for fixing the crossbar 45 at its upper end.

[0048] The grinding wheel dresser has various specifications; the diamond pen 43 of the grinding wheel dresser has a different angle with the crossbar 45 for each specification; the diamond pen 43 is perpendicular to the end bevel 451; the different inclination angles of the end bevel 451 form various specifications of the grinding wheel dresser; the crossbar 45 is threaded with a fastening screw 44 for fixing the diamond pen.

[0049] Working process: By moving the extension plate 73, the elastic edge 72 is separated from the slot 68. The cover 7 is lifted upwards to a vertical position, and the sliding shaft 71 slides along the longitudinal sliding groove 62 to the lower part of the storage box. The handwheel 541 is turned to rotate the lead screw 54. The lead screw 54 slides inward under the guidance of the threaded hole 67, which in turn drives the linkage plate 53 to slide inward. The sliding of the linkage plate 53 drives the drive groove 531 to slide, which in turn drives the eccentric column 521 to rotate, thereby causing the connecting rod 52 to rotate, until all connecting rods 52 are vertical. The base plate 51 drives the grinding wheel dresser to move to the upper limit position. The grinding wheel 33, driven by the transverse feed part 31 and the longitudinal feed part 32, moves until it comes into contact with the grinding wheel dresser. During the rotation of the grinding wheel 33, it is dressed by the diamond pen 43.

[0050] After the dressing is completed, follow similar steps as described above, turn the handwheel 541 in the opposite direction to move the grinding wheel dresser into the storage box 61, and then close the storage box 61 with the snap-on cover 7.

[0051] Example 1: The grinding wheel 33 moves to the point where its two end faces abut against the diamond pen 43 on the V-shaped surface 421, and the grinding wheel 33 rotates to dress the end faces; then, the grinding wheel 33 moves to the point where its arc surface abuts against the diamond pen 43 on the plane 422, and the grinding wheel 33 rotates to dress the arc surface so that the arc surface and the end faces are perpendicular.

[0052] Example 2: The grinding wheel 33 moves until it comes into contact with the diamond pen 43, and the grinding wheel 33 rotates to perform dressing.

[0053] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A grinding wheel dresser mounting structure for a grinding machine tool, characterized in that: The device includes a storage box located in front of the worktable on the bed frame, a base plate slidably connected longitudinally within the storage box, a grinding wheel dresser detachably connected to the upper part of the base plate, and a cover movably connected to the storage box. The storage box has an opening at its upper end, which can be selectively closed by the cover. Two sets of connecting rods are arranged between the bottom of the storage box and the base plate. Each set of connecting rods includes two rods whose ends are rotatably connected to each other. One connecting rod has its other end rotatably connected to the bottom of the storage box, and the other connecting rod has its other end rotatably connected to the base plate. When the grinding wheel dresser dresses the grinding wheel, the connecting rods are arranged longitudinally.

2. The installation structure as described in claim 1, characterized in that: An eccentric column is provided on the connecting rod rotatably connected to the storage box; the axis of the eccentric column is parallel to and does not coincide with the rotation axis of the corresponding connecting rod; a linkage plate is slidably connected to the inner bottom of the storage box; multiple drive slots are provided on the linkage plate; the eccentric column is located in the drive slot.

3. The installation structure as described in claim 2, characterized in that: A lead screw is rotatably connected to the linkage plate; a threaded hole is provided on the bed for threaded connection with the lead screw; a handwheel is provided at the end of the lead screw away from the linkage plate.

4. The mounting structure as described in any one of claims 1-3, characterized in that: The grinding wheel dresser includes a base detachably connected to the upper end of the base plate and a bracket horizontally disposed on the upper end of the base; the upper end of the bracket is provided with two V-shaped surfaces spaced apart, the two V-shaped surfaces having opposite inclination directions; a diamond pen is disposed on each of the two V-shaped surfaces.

5. The installation structure as described in claim 4, characterized in that: The upper end of the bracket is provided with a flat surface; the flat surface is located on the side of the two V-shaped surfaces near the workbench; a diamond pen is provided on the upper end of the flat surface.

6. The installation structure as described in claim 4, characterized in that: The grinding wheel dresser comes in various sizes; the angle between the diamond tip and the V-shaped surface is different for each size of the grinding wheel dresser.

7. The mounting structure as described in any one of claims 1-3, characterized in that: The grinding wheel dresser includes a base detachably connected to the upper end of the base plate, a bracket longitudinally arranged on the upper end of the base, and a crossbar with one end arranged on the bracket; the other end of the crossbar is inclined with an end bevel; a diamond pen is arranged on the end bevel.

8. The mounting structure as described in any one of claims 1-3, characterized in that: One side of the cover is provided with a sliding shaft that is rotatably connected to the storage box; the other side of the cover is provided with an elastic edge that engages with the storage box; an extension plate is provided on the elastic edge.

9. The mounting structure as described in claim 8, characterized in that: The storage box has a longitudinal sliding groove on its side wall; the sliding shaft is located in the longitudinal sliding groove; the sliding shaft can be selectively slid along the longitudinal sliding groove.

10. The mounting structure as described in any one of claims 1-3, characterized in that: The storage box has a positioning post longitudinally arranged in the middle of the two opposite side walls; the bottom plate abuts against the positioning post on the side facing the workbench; the storage box has two slide rails on each of the two opposite side walls; the slide rails are located between the positioning post and the side wall of the storage box away from the workbench; the bottom plate has four triangular openings that are slidably connected to the corresponding slide rails.

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