Grinding machine with adjustable grinding precision

Abstract

The utility model belongs to the technical field of grinding equipment, and particularly relates to a grinding machine with adjustable grinding precision, which comprises a base, the upper millstone is arranged above the lower millstone; the driving mechanism comprises a driven gear arranged on the lower grinding disc and a main driving part arranged on one side of the base; the adjusting motors are arranged on the two sides of the base; the millstone supporting frame is arranged on the upper millstone; the cooling part is arranged in the lower millstone and used for absorbing heat generated in the working process of the lower millstone; wherein the main driving part can drive the lower millstone to rotate by driving the driven gear to rotate, the driving end of the adjusting motor is connected with the millstone supporting frame, and compared with the prior art, the working stability of the grinding machine is improved, and the service life of the grinding machine is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of grinding equipment technology, and in particular relates to a grinding machine with adjustable grinding precision. Background Technology

[0002] A grinding machine is a grinding machine that grinds workpieces with abrasives coated or embedded in grinding tools. It usually consists of an upper grinding disc, a lower grinding disc, and a drive mechanism. For example, a grinding machine with quick assembly and disassembly of upper and lower grinding discs disclosed in patent application number CN202321174280.9 includes a machine base, a pad installed on the top of the machine base, a support top mounted on the top of the pad, a drive motor installed in the middle of the top of the support top, and a connector connected to the bottom of the drive motor. The connector has a snap-fit ​​pattern on its outer ring array.

[0003] During use, if the existing grinder runs continuously for a long time or grinds excessively hard or excessive materials, the motor or grinding disc may overheat, leading to damage to the grinder. This reduces the grinder's operational stability and service life, thus necessitating improvements. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a grinding machine with adjustable grinding precision, thereby improving the working stability and service life of the grinding machine.

[0005] In view of this, the present invention provides a grinding machine with adjustable grinding precision, comprising:

[0006] A base, on which a lower grinding disc is rotatably mounted;

[0007] An upper grinding disc is positioned above the lower grinding disc.

[0008] The drive mechanism includes a driven gear disposed on the lower grinding disc and a main drive unit disposed on one side of the base;

[0009] Also includes:

[0010] Adjustment motors are installed on both sides of the base;

[0011] A grinding disc support frame is mounted on the upper grinding disc.

[0012] A cooling section is provided in the lower grinding disc to absorb the heat generated during the operation of the lower grinding disc;

[0013] The main drive unit can drive the lower grinding disc to rotate by driving the driven gear, and the drive end of the adjustment motor is connected to the grinding disc support frame.

[0014] In this technical solution, during the use of the grinding machine, the operation of the motor is adjusted, which drives the grinding disc support frame to move up and down, thereby moving the upper grinding disc. This allows for adjustment of the gap between the upper and lower grinding discs, facilitating the adjustment of grinding precision and improving work efficiency. The lower grinding disc is driven to rotate by the drive mechanism to grind the workpiece. During the grinding process, the cooling unit effectively absorbs the heat generated by the lower grinding disc during operation, thereby reducing the occurrence of overheating of the lower grinding disc, preventing damage to the grinding machine, and improving the working stability and service life of the grinding machine.

[0015] In the above technical solution, the cooling unit further includes:

[0016] A cooling water chamber is disposed in the lower grinding disc;

[0017] An annular water tank is provided at the bottom of the lower grinding disc and communicates with the cooling water chamber. The annular water tank is concentrically distributed with the lower grinding disc.

[0018] A concentric sealing ring, which is composed of an outer ring and an inner ring that are concentrically distributed, and the concentric sealing ring is concentrically distributed with the lower grinding disc;

[0019] The first sealing strip is disposed on both sides of the concentric sealing ring;

[0020] The inlet and outlet include an inlet and an outlet symmetrically distributed along the lower grinding disc, and both the inlet and outlet are located in an annular water tank.

[0021] A water pipe is provided, which includes an inlet pipe and an outlet pipe, and the inlet pipe and the outlet pipe are respectively connected to an inlet and an outlet.

[0022] The concentric sealing ring is set on the bottom surface of the lower grinding disc, with the outer ring and inner ring located on the outer and inner sides of the annular water groove, respectively. The water inlet and outlet are both in a movable sealing fit with the annular water groove, and the connecting water pipe is set on the base.

[0023] Furthermore, the above technical solution also includes:

[0024] The second sealing strip is disposed on the bottom surface of the concentric sealing ring.

[0025] In the above technical solution, the second sealing strip further includes:

[0026] The mounting groove is located on the bottom surface of the concentric sealing ring and is in a ring shape concentrically distributed with the lower grinding disc;

[0027] The sealing strip body is in the form of a ring concentrically distributed with the lower grinding disc;

[0028] The sealing strip body is disposed in the mounting groove.

[0029] Furthermore, the above technical solution also includes:

[0030] Deformation groove, the deformation groove is provided on the inner and outer surfaces of the sealing strip body, and the cross section of the deformation groove is an isosceles trapezoidal shape;

[0031] A pressure plate, wherein the pressure plate is disposed in a deformation groove;

[0032] An elastic support plate is provided on the inner side of the pressure plate, with one end of the elastic support plate connected to the pressure plate and the other end connected to the deformation groove.

[0033] The deformation groove cross-section is an isosceles trapezoid with the long side closest to the surface of the sealing strip body.

[0034] The beneficial effects of this utility model are:

[0035] 1. By adjusting the motor settings, the gap between the upper and lower grinding discs can be effectively adjusted, which facilitates the adjustment of grinding precision and improves work efficiency;

[0036] 2. The cooling unit effectively absorbs and reduces the heat generated during the grinding process, thus preventing overheating of the grinding disc, protecting the grinder from damage, and improving its operational stability and service life.

[0037] 3. The addition of a second sealing strip can further improve the sealing effect of the concentric sealing ring and reduce the occurrence of cooling water leakage. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model.

[0040] Figure 2 This is a top view structural diagram of the present invention.

[0041] Figure 3 This is a schematic diagram of the structure of the present utility model from the left side.

[0042] Figure 4 This is a schematic diagram of the cooling section of this utility model.

[0043] Figure 5 This utility model Figure 4 A partial enlarged view of the structure of part A in the middle.

[0044] The markings in the diagram are as follows:

[0045] 1. Base; 2. Lower grinding disc; 3. Upper grinding disc; 4. Driven gear; 5. Main drive unit; 6. Adjustment motor; 7. Grinding disc support frame; 8. Cooling unit; 80. Cooling water chamber; 81. Annular water tank; 82. Concentric sealing ring; 820. Outer ring; 821. Inner ring; 83. First sealing strip; 84. Water inlet; 85. Water outlet; 86. Water inlet pipe; 87. Water outlet pipe; 88. Second sealing strip; 880. Mounting groove; 881. Sealing strip body; 882. Deformation groove; 883. Pressure plate; 884. Elastic support plate. Detailed Implementation

[0046] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0047] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0048] Example 1:

[0049] This application provides a grinding machine with adjustable grinding precision, including: a base 1, on which a lower grinding disc 2 is rotatably disposed; an upper grinding disc 3, which is disposed above the lower grinding disc 2; and a driving mechanism, which includes a driven gear 4 disposed on the lower grinding disc 2 and a main driving part 5 disposed on one side of the base 1.

[0050] It also includes: an adjustment motor 6, which is set on both sides of the base 1; a grinding disc support frame 7, which is set on the upper grinding disc 3; and a cooling unit 8, which is set in the lower grinding disc 2 to absorb the heat generated by the lower grinding disc 2 during operation.

[0051] The main drive unit 5 can drive the lower grinding disc 2 to rotate by driving the driven gear 4 to rotate, and the drive end of the adjustment motor 6 is connected to the grinding disc support frame 7.

[0052] Furthermore, the upper grinding disc 3 has a feed inlet and a conical slit, and the lower grinding disc 2 has a conical protrusion that fits into the slit. There is also a planar slit between the upper grinding disc 3 and the lower grinding disc 2. The main drive plate also includes conventional structures such as a drive motor, commutator, output shaft and drive gear. The base 1 has a slot for mounting the lower grinding disc 2. The lower grinding disc 2 is rotatably mounted in the slot through a bearing. The driven gear 4 is a toothed ring that is concentrically distributed with the lower grinding disc 2. The drive gear meshes with the driven gear 4. Two motor mounts are symmetrically distributed on both sides of the base 1 along the radial direction of the base 1. The adjusting motor 6 is installed in the motor mount. The grinding disc support frame 7 extends outward along the radial direction of the upper grinding disc 3. The drive end of the adjusting motor 6 extends vertically upward and connects to the ground of the grinding disc support frame 7. The two adjusting motors 6 can be controlled by a conventional synchronous control system.

[0053] In this embodiment, during the use of the grinding machine, the operation of the motor 6 is adjusted, which drives the grinding disc support frame 7 to move up and down, thereby moving the upper grinding disc 3. This allows for adjustment of the gap between the upper grinding disc 3 and the lower grinding disc 2, facilitating the adjustment of grinding precision and improving work efficiency. The lower grinding disc 2 is driven to rotate by the drive mechanism to grind the workpiece. During the grinding process, the cooling unit 8 effectively absorbs the heat generated by the lower grinding disc 2 during operation, thereby reducing the overheating of the lower grinding disc 2, preventing damage to the grinding machine, and improving the working stability and service life of the grinding machine.

[0054] Example 2:

[0055] This embodiment provides a grinding machine with adjustable grinding precision. In addition to the technical solutions of the above embodiments, it also has the following technical features: the cooling unit 8 further includes: a cooling water chamber 80, which is disposed in the lower grinding disc 2; an annular water groove 81, which is disposed at the bottom of the lower grinding disc 2 and communicates with the cooling water chamber 80, and is concentrically distributed with the lower grinding disc 2; and a concentric sealing ring 82, which is composed of an outer ring 820 and an inner ring 821 concentrically distributed. The concentric sealing ring 82 is concentrically distributed with the lower grinding disc 2; the first sealing strip 83 is disposed on both sides of the concentric sealing ring 82; the inlet and outlet 85 includes an inlet 84 and an outlet 85 symmetrically distributed along the lower grinding disc 2, and both the inlet 84 and the outlet 85 are disposed in the annular water tank 81; the connecting water pipe includes an inlet pipe 86 and an outlet pipe 87, and the inlet pipe 86 and the outlet pipe 87 are respectively connected to the inlet 84 and the outlet 85;

[0056] Among them, the concentric sealing ring 82 is set on the bottom surface of the lower grinding disc 2, and the outer ring 820 and the inner ring 821 are located on the outer and inner sides of the annular water groove 81, respectively. The water inlet 84 and the water outlet 85 are both in a movable sealing fit with the annular water groove 81, and the connecting water pipe is set on the base 1.

[0057] Moreover, the first sealing strip 83 is a ring concentric with the lower grinding disc 2.

[0058] In this embodiment, during the rotation of the lower grinding disc 2, with the setting of the annular water groove 81 and the inlet / outlet 85, the lower grinding disc 2 can rotate smoothly. The first sealing strip 83 can cooperate with the concentric sealing ring 82, the base 1 and the surface of the inlet / outlet 85 to seal the annular water groove 81, preventing the cooling water from leaking out. During the operation of the lower grinding disc 2, cooling water is delivered to the cooling water chamber 80 through the water inlet pipe 86. The cooling water entering the cooling water chamber 80 can effectively absorb the heat generated during the operation of the lower grinding disc 2. After absorbing the heat, the cooling water is discharged through the water outlet 85 and the water outlet pipe 87. This circulation of cooling water effectively reduces the phenomenon of overheating of the lower grinding disc 2, prevents damage to the grinding machine, and improves the working stability and service life of the grinding machine.

[0059] Example 3:

[0060] This embodiment provides a grinding machine with adjustable grinding precision. In addition to the technical solutions described in the above embodiments, it also includes the following technical features: a second sealing strip 88, which is disposed on the bottom surface of the concentric sealing ring 82. Further, in the above technical solution, the second sealing strip 88 also includes: a mounting groove 880, which is disposed on the bottom surface of the concentric sealing ring 82 and is annularly distributed concentrically with the lower grinding disc 2; and a sealing strip body 881, which is annularly distributed concentrically with the lower grinding disc 2.

[0061] The sealing strip body 881 is set in the mounting groove 880.

[0062] It also includes: a deformation groove 882, which is disposed on the inner and outer surfaces of the sealing strip body 881, and the cross-section of the deformation groove 882 is an isosceles trapezoidal shape; a pressure plate 883, which is disposed in the deformation groove 882; and an elastic support plate 884, which is disposed on the inner side of the pressure plate 883, with one end of the elastic support plate 884 connected to the pressure plate 883 and the other end connected to the deformation groove 882.

[0063] Among them, the end of the cross section of the deformation groove 882 that is close to the surface of the sealing strip body 881 is the long side of an isosceles trapezoid.

[0064] In this embodiment, when cooling water leaks to the second sealing strip 88, the second sealing strip 88 can further provide a seal to prevent cooling water from leaking outward. At the same time, when cooling water enters the deformation groove 882, the pressure plate 883 moves into the deformation groove 882 under the pressure of the cooling water. Since the cross-section of the deformation groove 882 is an isosceles trapezoid, the pressure plate 883 will squeeze the deformation groove 882 to both sides during the process of moving into the deformation groove 882, thereby causing the second sealing strip 88 to expand and deform, so that the second sealing strip 88 further fits tightly against the cover, improving the sealing effect of the sealing surface, forming the effect of the more leakage, the tighter the seal, effectively improving the sealing effect of the concentric sealing ring 82.

[0065] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A grinding machine with adjustable grinding accuracy, comprising: a base (1) on which a lower grinding disc (2) is rotatably arranged; an upper grinding disc (3) arranged above the lower grinding disc (2); a driving mechanism comprising a driven gear (4) arranged on the lower grinding disc (2) and a main driving part (5) arranged on one side of the base (1); characterized in that it further comprises: an adjusting motor (6) arranged on both sides of the base (1); a grinding disc support frame (7) arranged on the upper grinding disc (3); a cooling part (8) arranged in the lower grinding disc (2) for absorbing heat generated during operation of the lower grinding disc (2); wherein the main driving part (5) can drive the lower grinding disc (2) to rotate by driving the driven gear (4) to rotate, and the driving end of the adjusting motor (6) is connected with the grinding disc support frame (7).

2. The lapping machine of adjustable lapping accuracy according to claim 1, wherein, The cooling part (8) further comprises: a cooling water cavity (80) arranged in the lower grinding disc (2); a ring-shaped water groove (81) arranged at the bottom of the lower grinding disc (2) and in communication with the cooling water cavity (80), the ring-shaped water groove (81) being concentrically distributed with the lower grinding disc (2); a concentric sealing ring (82) composed of an outer ring (820) and an inner ring (821) concentrically distributed, the concentric sealing ring (82) being concentrically distributed with the lower grinding disc (2); a first sealing strip (83) arranged on the surface of both sides of the concentric sealing ring (82); an inlet and outlet water port (85) comprising water inlets (84) and water outlets (85) symmetrically distributed along the lower grinding disc (2), the water inlets (84) and the water outlets (85) being arranged in the ring-shaped water groove (81); a connecting water pipe comprising a water inlet pipe (86) and a water outlet pipe (87), the water inlet pipe (86) and the water outlet pipe (87) being in communication with the water inlets (84) and the water outlets (85), respectively; wherein the concentric sealing ring (82) is arranged on the bottom surface of the lower grinding disc (2) and the outer ring (820) and the inner ring (821) are located on the outer side and the inner side of the ring-shaped water groove (81), respectively, the water inlets (84) and the water outlets (85) are in movable sealing cooperation with the ring-shaped water groove (81), and the connecting water pipe is arranged on the base (1).

3. The lapping machine of adjustable lapping accuracy according to claim 2, wherein, Further comprising: a second sealing strip (88) arranged on the bottom surface of the concentric sealing ring (82).

4. The lapping machine of adjustable lapping accuracy according to claim 3, wherein The second sealing strip (88) further comprises: a mounting groove (880) arranged on the bottom surface of the concentric sealing ring (82) and in the form of a ring concentrically distributed with the lower grinding disc (2); a sealing strip body (881) in the form of a ring concentrically distributed with the lower grinding disc (2); wherein the sealing strip body (881) is arranged in the mounting groove (880).

5. The lapping machine of adjustable lapping accuracy according to claim 4, wherein Further comprising: A deformation groove (882) is arranged on the surface of the inner and outer sides of the sealing strip body (881), the cross section of the deformation groove (882) is isosceles trapezoidal shape; A pressure bearing plate (883) is arranged in the deformation groove (882); An elastic supporting plate (884) is arranged on the inner side of the pressure bearing plate (883), one end of the elastic supporting plate (884) is connected with the pressure bearing plate (883), and the other end is connected with the deformation groove (882); Wherein, the end of the cross section of the deformation groove (882) close to the surface of the sealing strip body (881) is the long side of the isosceles trapezoidal shape.

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