Static pressure main shaft structure of surface grinding machine

Abstract

The utility model discloses a static pressure main shaft structure of a surface grinding machine, which belongs to the field of static pressure main shaft disassembly and assembly and heat dissipation and comprises a static pressure main shaft body, a plurality of equidistant heat dissipation assemblies are arranged at the outer end of the static pressure main shaft body, a plurality of equidistant L-shaped protective strips are arranged outside the heat dissipation assemblies, and clamping assemblies are arranged at the rear ends of the L-shaped protective strips. The clamping assembly is matched with the static pressure main shaft body; the clamping assembly comprises a fixing block fixedly connected with the L-shaped protection strip, the outer wall of the fixing block is fixedly connected with a plurality of equidistant L-shaped connecting blocks, and the ends, away from the fixing block, of the L-shaped connecting blocks are hinged to hinge blocks. The space between the multiple clamping blocks can be flexibly adjusted, stable clamping of the static pressure main shaft body is achieved, and meanwhile heat generated when the static pressure main shaft body works is rapidly conducted and dissipated in cooperation with a heat dissipation assembly composed of a heat conduction piece, a heat dissipation piece and a heat dissipation fan.

Description

Technical Field

[0001] This utility model relates to the field of hydrostatic spindle assembly and dissipation, and particularly to the hydrostatic spindle structure of a surface grinder. Background Technology

[0002] The hydrostatic spindle of a surface grinder is a high-precision, high-stability mechanical structure. It mainly achieves spindle support and lubrication through hydrostatic lubrication technology. Pressure oil supplied from outside the bearing enters the bearing oil chamber, causing the journal to float and achieving liquid lubrication. Under pressure, the oil enters the spiral oil groove of the sleeve through the pipe joint and fills the gap between the sleeve and the spindle, forming a uniform oil film that floats the spindle. This ensures that the spindle remains balanced at high precision, achieving non-contact support and lubrication and reducing friction between the machines.

[0003] Chinese Patent Application Publication No. CN202420019135.1 discloses a horizontal high-precision hydrostatic spindle device. This solution achieves convenient disassembly and assembly through the setting of a disassembly and assembly mechanism, allowing the shaft cover to be easily removed from the shaft sleeve, facilitating regular cleaning of the internal parts of the shaft sleeve without the need to remove a large number of screws, saving a significant amount of time. However, during use, when the pressure oil inside the hydrostatic spindle flows in the oil chamber and oil circuit, the internal friction between oil molecules leads to energy loss, which is converted into heat. Especially under high-speed operation or high-pressure conditions, the oil flow rate is fast and the shearing effect is strong, resulting in more significant heat generation. If this heat is not controlled, it will have a significant impact on the equipment's accuracy, service life, and processing quality. Conventional cooling equipment is not convenient to adjust according to the size of the hydrostatic spindle, which is not conducive to the rapid and efficient cooling of the hydrostatic spindle.

[0004] Therefore, we propose a hydrostatic spindle structure for surface grinders. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a hydrostatic spindle structure for a surface grinder. Through the hinged structure of the clamping assembly and the use of a knob to control the lead screw to move the guide slot block, the spacing of multiple clamping blocks can be flexibly adjusted to achieve stable clamping of the hydrostatic spindle. At the same time, with the heat dissipation assembly composed of heat-conducting plates, heat sinks and heat dissipation fans, the heat generated by the hydrostatic spindle during operation can be quickly conducted and dissipated.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] The hydrostatic spindle structure of a surface grinder includes a hydrostatic spindle body. Multiple equidistant heat dissipation components are provided at the outer end of the hydrostatic spindle body. Multiple equidistant L-shaped protective strips are provided on the outside of the heat dissipation components. A clamping assembly is provided at the rear end of each L-shaped protective strip. The clamping assembly is adapted to the hydrostatic spindle body. The clamping assembly includes a fixing block fixedly connected to the L-shaped protective strips. Multiple equidistant L-shaped connecting blocks are fixedly connected to the outer wall of the fixing block. A hinge block is hinged to the end of each L-shaped connecting block away from the fixing block, and a clamping block is hinged to the end of each hinge block away from the L-shaped connecting block.

[0008] Furthermore, a lead screw is rotatably connected to the middle of the fixing block, a threaded sleeve is threaded to the front end of the lead screw, a limit block is fixedly connected to the front end of the threaded sleeve, and a guide groove block is fixedly connected to the front end of the limit block.

[0009] Furthermore, the guide groove block is located at the rear end of the clamping block, and the guide groove block is slidably connected to the clamping block.

[0010] Furthermore, a knob is fixedly connected to the rear end of the lead screw.

[0011] Furthermore, the heat dissipation assembly includes a heat-conducting plate fixedly installed at the front end of the clamping block, the inner end of which is adapted to the outer wall of the hydrostatic spindle.

[0012] Furthermore, a heat sink is fixedly connected to the outer wall of the heat-conducting sheet, and a cooling fan is fixedly connected to the middle of the heat sink.

[0013] Furthermore, the clamping block is L-shaped.

[0014] In summary, this utility model has the following beneficial effects:

[0015] 1. The heat dissipation assembly, consisting of heat-conducting plates, heat sinks, and cooling fans, can quickly conduct and dissipate the heat generated during the operation of the hydrostatic spindle, effectively avoiding problems such as decreased spindle accuracy and component aging caused by overheating, and significantly improving the processing stability and continuous working capability of the surface grinder.

[0016] 2. The L-shaped protective strip surrounding the heat dissipation components can protect against splashed chips, coolant, and other foreign objects during processing, preventing damage to the heat dissipation components and hydrostatic spindle, extending the overall service life of the equipment, and reducing maintenance costs.

[0017] 3. The clamping assembly adopts a hinged structure, and the guide slot block is moved by the screw driven by the knob control, so that the spacing of multiple clamping blocks can be flexibly adjusted to achieve stable clamping of hydrostatic spindles of different sizes, thereby improving the versatility and applicability of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure in this embodiment;

[0019] Figure 2 This is a schematic diagram of the overall disassembled structure in this embodiment;

[0020] Figure 3 This is a schematic diagram of the clamping component in this embodiment;

[0021] Figure 4 This is a schematic diagram of the heat dissipation component in this embodiment;

[0022] Figure 5 This is a schematic diagram of the structure of the clamping block and the guide groove block in this embodiment.

[0023] In the diagram, 1 is the clamping assembly; 2 is the heat dissipation assembly; 3 is the L-shaped protective strip; 4 is the hydrostatic spindle body; 101 is the fixing block; 102 is the L-shaped connecting block; 103 is the hinge block; 104 is the clamping block; 105 is the limiting block; 106 is the guide groove block; 107 is the screw sleeve; 108 is the lead screw; 109 is the knob; 201 is the heat-conducting plate; 202 is the heat sink; and 203 is the cooling fan. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0026] Reference Figures 1-5 As shown, this is a hydrostatic spindle structure of a surface grinder in a preferred embodiment of the present invention. It includes a hydrostatic spindle body 4, with multiple equidistant heat dissipation components 2 at the outer end of the hydrostatic spindle body 4. Multiple equidistant L-shaped protective strips 3 are provided on the outside of the heat dissipation components 2. A clamping component 1 is provided at the rear end of the L-shaped protective strips 3. The clamping component 1 is adapted to the hydrostatic spindle body 4. The clamping component 1 includes a fixing block 101 fixedly connected to the L-shaped protective strips 3. Multiple equidistant L-shaped connecting blocks 102 are fixedly connected to the outer wall of the fixing block 101. A hinge block 103 is hinged to the end of the L-shaped connecting block 102 away from the fixing block 101. A clamping block 104 is hinged to the end of the hinge block 103 away from the L-shaped connecting block 102.

[0027] The position of the clamping block 104 is restricted by the fixing block 101 and the L-shaped connecting block 102, which facilitates the subsequent clamping block 104 to clamp the hydrostatic spindle body 4. The L-shaped connecting block 102 can change its angle according to the actual action, so it can drive multiple clamping blocks 104 to move closer or separate.

[0028] A lead screw 108 is rotatably connected to the middle of the fixed block 101. A threaded sleeve 107 is threaded to the front end of the lead screw 108. A limit block 105 is fixedly connected to the front end of the threaded sleeve 107. A guide groove block 106 is fixedly connected to the front end of the limit block 105.

[0029] The lead screw 108 drives the screw sleeve 107 to reciprocate, which in turn causes the limit block 105 to reciprocate, and the limit block 105 drives the guide groove block 106 to move.

[0030] The guide slot block 106 is located at the rear end of the clamping block 104, and the guide slot block 106 is slidably connected to the clamping block 104;

[0031] The sliding relationship between the guide groove block 106 and the clamping block 104 allows the clamping block 104 to move. Since the L-shaped connecting block 102 can change its angle, the clamping block 104 is subjected to force, which forces the clamping block 104 to move along the guide groove block 106, thereby achieving the purpose of making the clamping blocks 104 move closer to each other or separate.

[0032] A knob 109 is fixedly connected to the rear end of the lead screw 108;

[0033] The lead screw 108 is rotated by knob 109.

[0034] The heat dissipation assembly 2 includes a heat-conducting plate 201 fixedly installed at the front end of the clamping block 104, and the inner end of the heat-conducting plate 201 is adapted to the outer wall of the hydrostatic spindle body 4.

[0035] The heat-conducting plate 201 is moved by the clamping block 104. The heat-conducting plate 201 can move closer to or separate from the clamping block 104. When it moves closer, it can clamp the hydrostatic spindle 4. During the clamping process, the heat-conducting plate 201 can conduct heat generated by the hydrostatic spindle 4 to help dissipate heat from the hydrostatic spindle 4. When the heat-conducting plate 201 separates, the hydrostatic spindle 4 can be disassembled or replaced.

[0036] A heat sink 202 is fixedly connected to the outer wall of the heat conduction plate 201, and a cooling fan 203 is fixedly connected to the middle of the heat sink 202.

[0037] The heat sink 202 works in conjunction with the cooling fan 203 to facilitate the dissipation of heat from the heat conduction plate 201 and to help the heat conduction plate 201 better absorb and conduct heat from the hydrostatic spindle body 4.

[0038] The clamping block 104 is L-shaped;

[0039] The L-shaped clamping block 104 facilitates connection with the hinge block 103 and the guide groove block 106, and allows movement in a certain direction via the hinge block 103 and the guide groove block 106.

[0040] Specific implementation process: First, place the hydrostatic spindle 4 at the center of the clamping assembly 1. Drive the lead screw 108 to rotate by rotating the knob 109. Since the lead screw 108 and the threaded sleeve 107 are threadedly connected, when the lead screw 108 rotates, it will drive the threaded sleeve 107 to move forward axially, thereby pushing the limiting block 105 and the guide groove block 106 to move forward synchronously. The guide groove block 106 is slidably connected to the clamping block 104. When the guide groove block 106 moves forward, its outer wall will... When the clamping block 104 applies a pushing force, since the clamping block 104 is hinged to the L-shaped connecting block 102 via the hinge block 103, and the L-shaped connecting block 102 is fixedly connected to the fixing block 101, the clamping block 104, under the push of the guide groove block 106, will move towards the hydrostatic spindle 4 around the hinge point. Finally, the hydrostatic spindle 4 is clamped and fixed by the L-shaped structure of multiple clamping blocks 104. During the clamping process, the heat-conducting plate 201 fixed to the front end of the clamping block 104 will fit tightly. When the hydrostatic spindle 4 generates heat during operation, the heat is conducted to the heat sink 202 through the heat conduction plate 201. At the same time, the cooling fan 203 is activated to accelerate airflow and quickly dissipate the heat to the outside, achieving efficient heat dissipation for the hydrostatic spindle 4. The L-shaped protective strip 3 surrounds the outside of the heat dissipation assembly 2, which can provide physical protection for components such as the heat sink 202 and the cooling fan 203, preventing foreign objects such as chips from flying during processing from damaging the heat dissipation assembly 2. When it is necessary to disassemble or replace the hydrostatic spindle 4, the knob 109 is rotated in the opposite direction, causing the lead screw 108 to drive the threaded sleeve 107 to move backward. The guide slot block 106 then moves backward, and the clamping block 104 opens outward under the action of the hinge structure, releasing the clamping of the hydrostatic spindle 4, thus completing the disassembly operation. This not only achieves stable clamping and quick disassembly of the spindle, but also effectively solves the heat generation problem of the spindle during operation through the heat conduction and heat dissipation assembly, improving the machining accuracy and stability of the surface grinder.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hydrostatic spindle structure for a surface grinder, characterized in that: The device includes a hydrostatic spindle body (4), the outer end of which is provided with a plurality of equidistant heat dissipation components (2), the outer side of which is provided with a plurality of equidistant L-shaped protective strips (3), and the rear end of which is provided with a clamping component (1), which is adapted to the hydrostatic spindle body (4). The clamping assembly (1) includes a fixing block (101) fixedly connected to the L-shaped protective strip (3). The outer wall of the fixing block (101) is fixedly connected with a plurality of equidistant L-shaped connecting blocks (102). A hinge block (103) is hinged to one end of the L-shaped connecting block (102) away from the fixing block (101). A clamping block (104) is hinged to one end of the hinge block (103) away from the L-shaped connecting block (102).

2. The hydrostatic spindle structure of the surface grinder according to claim 1, characterized in that: A lead screw (108) is rotatably connected to the middle of the fixed block (101), and a threaded sleeve (107) is threaded to the front end of the lead screw (108). A limit block (105) is fixedly connected to the front end of the threaded sleeve (107), and a guide groove block (106) is fixedly connected to the front end of the limit block (105).

3. The hydrostatic spindle structure of the surface grinder according to claim 2, characterized in that: The guide groove block (106) is located at the rear end of the clamping block (104), and the guide groove block (106) is slidably connected to the clamping block (104).

4. The hydrostatic spindle structure of the surface grinder according to claim 2, characterized in that: A knob (109) is fixedly connected to the rear end of the lead screw (108).

5. The hydrostatic spindle structure of the surface grinder according to claim 1, characterized in that: The heat dissipation assembly (2) includes a heat-conducting plate (201) fixedly installed at the front end of the clamping block (104), and the inner end of the heat-conducting plate (201) is adapted to the outer wall of the hydrostatic spindle body (4).

6. The hydrostatic spindle structure of the surface grinder according to claim 5, characterized in that: A heat sink (202) is fixedly connected to the outer wall of the heat-conducting plate (201), and a cooling fan (203) is fixedly connected to the middle of the heat sink (202).

7. The hydrostatic spindle structure of the surface grinder according to claim 1, characterized in that: The clamping block (104) is L-shaped.

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