Miniature shaft grinding equipment with positioning function

Abstract

The utility model relates to the technical field of polishing, and particularly discloses miniature shaft polishing equipment with a positioning function, which comprises a handle, a switch arranged on the side surface of the handle, a machine body fixedly mounted above the handle, a grinding wheel mounted on the front surface of the machine body, a protective cover mounted below the grinding wheel, and a positioning device further mounted on the machine body. The wedge block moves on the threaded rod by rotating the rotary knob, so that the sliding block is pushed to move to control stretching and retracting of the telescopic arm, when a workpiece needs to be polished, the workpiece only needs to be clamped on the calipers at the tail end of the telescopic arm, then the rotary knob is rotated, the position of the workpiece is accurately adjusted till the workpiece is just attached to the tail end of the grinding wheel, a power source can be connected, and a switch is turned on; the workpiece can be polished, the equipment can slide or rotate on the workpiece by taking the workpiece as a shaft, so that the workpiece is uniformly and stably polished, and the diameters of all parts of the processed workpiece are the same.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding, in particular to a micro-axis grinding device with a positioning function. Background Art

[0002] With the rapid rise of the manufacturing industry, the market demand for micro-axles, as key components of precision machinery and electronic equipment, is growing. Micro-axles are widely used in many fields such as automobiles, aerospace, electronic information, biomedicine, etc., and the requirements for precision, surface quality and performance are getting higher and higher. Therefore, the development of micro-axle grinding equipment with high precision, high efficiency and high stability has become an important trend in the development of the industry. In the existing micro-axle processing process, traditional desktop grinders or handheld grinders are often used for grinding operations, using high-speed rotating thin-sheet grinding wheels and rubber grinding wheels, wire wheels, etc. to grind, cut, rust remover and polish metal components. This type of grinder is suitable for cutting, grinding and brushing metal and stone. Since the grinding wheel movement of the grinder needs to be manually controlled, the directional movement of the grinding wheel cannot be accurately controlled, and the stability of the grinding wheel cannot be maintained under long-term continuous operation, resulting in low grinding accuracy and affecting the grinding quality. To this end, we propose a micro-axle grinding device with positioning function. Utility Model Content

[0003] The purpose of the utility model is to provide a micro-axis grinding device with a positioning function to solve the problem in the above background technology that the directional movement of the grinding wheel cannot be accurately controlled, resulting in low grinding accuracy and quality.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a micro-axis grinding device with a positioning function, comprising a handle, a switch provided on the side of the handle, a body fixedly installed above the handle, a power cord connected to the bottom of the handle, a grinding wheel installed on the front of the body, a protective cover installed under the grinding wheel, the protective cover fixedly installed on the front of the body, and a positioning device also provided on the body.

[0005] Among them, the positioning device includes a shell, which is fixedly installed on both sides of the machine body, a threaded rod is rotatably installed in the shell, a knob is installed at one end of the threaded rod, a wedge is rotatably installed on the threaded rod, a threaded groove is opened on the wedge, and the threaded rod can rotate freely through the threaded groove, the wedge is in contact with the slider on the side close to the grinding wheel, and two sliding rods are installed on the slider on the side close to the wedge, two limiting sleeves are fixedly installed in the shell, the sliding rod is slidably installed in the limiting sleeve, a telescopic arm is installed on the side of the slider close to the grinding wheel, a spring is installed on the telescopic arm, the spring is located between the slider and the shell, the telescopic arm can freely extend and retract through the shell, the other side of the wedge is in contact with the limiting block, and the limiting block is fixedly installed in the shell.

[0006] The sum of the lengths of the limiting sleeve and the sliding rod is greater than the inner length of the outer shell.

[0007] The wedge block is trapezoidal, the slider and the wedge block can slide relative to each other, and the slider and the limiting block can slide relative to each other.

[0008] The axis of the telescopic arm is aligned with the edge of the grinding wheel.

[0009] Among them, a groove is opened on the top of the slider, and the groove is "U" shaped.

[0010] Among them, a caliper is installed at the end of the telescopic arm, the caliper is arc-shaped, and there is an opening above the caliper.

[0011] The utility model has at least the following beneficial effects:

[0012] The positioning devices installed on both sides of the machine body move the wedge on the threaded rod by rotating the knob, thereby pushing the slider to control the extension and retraction of the telescopic arm. When the workpiece needs to be polished, it is only necessary to clamp the workpiece on the caliper at the end of the telescopic arm, and then rotate the knob to accurately adjust the position of the workpiece until it is just in contact with the end of the grinding wheel. Then you can connect the power supply, turn on the switch, and polish the workpiece. The workpiece can be used as the axis to make the equipment slide or rotate on the workpiece, so that the workpiece can be polished evenly and stably, so that the diameter of the processed workpiece is the same everywhere. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the back structure of the utility model;

[0015] Figure 3 This is a schematic structural diagram of the positioning device of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the slider of the utility model;

[0017] Figure 5 This is a schematic diagram of the wedge structure of the utility model;

[0018] Figure 6 This is a schematic diagram of the caliper structure of the utility model.

[0019] In the figure: 1. handle; 2. switch; 3. body; 4. power cord; 5. grinding wheel; 6. protective cover; 7. positioning device; 70. housing; 71. threaded rod; 72. knob; 73. wedge; 730. threaded groove; 74. slider; 740. groove; 75. slide bar; 76. limiting sleeve; 77. telescopic arm; 78. spring; 79. limiting block; 8. caliper; 80. opening; 81. nut; 82. nut. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example 1

[0022] See also Figures 1 to 5 The utility model provides a technical solution: a micro-axis grinding device with a positioning function, including a handle 1, a switch 2 is provided on the side of the handle 1, a body 3 is fixedly installed above the handle 1, a power cord 4 is connected to the bottom of the handle 1, and a grinding wheel 5 is installed on the front of the body 3. When in use, the power is connected, the switch 2 is turned on, and the grinding wheel 5 can be started. A protective cover 6 is installed under the grinding wheel 5, and the protective cover 6 is fixedly installed on the front of the body 3 to protect the human body. A positioning device 7 is also installed on the body 3.

[0023] The positioning device 7 includes a shell 70, which is fixedly installed on both sides of the body 3. A threaded rod 71 is rotatably installed in the shell 70, and a knob 72 is installed at one end of the threaded rod 71. A wedge 72 is rotatably installed on the threaded rod 71. The wedge 72 is trapezoidal and has a thread groove 730. The threaded rod 71 can rotate freely through the thread groove 730. The wedge 72 is close to the grinding wheel 5 and is attached to the slider 74. The slider 74 and the wedge 72 can slide relative to each other. A groove 740 is opened on the top of the slider 74. The groove 74 0 is "U" shaped. The existence of the groove 740 can make the slider 74 not be restricted by the threaded rod 71 when it moves. Two slide rods 75 are installed on the side of the slider 74 close to the wedge block 72. Two limiting sleeves 76 are fixedly installed in the shell 70. The slide rod 75 is slidably installed in the limiting sleeve 76. The side of the slider 74 close to the grinding wheel 5 is equipped with a telescopic arm 77. The axis of the telescopic arm 77 is aligned with the edge of the grinding wheel 5. A spring 78 is sleeved on the telescopic arm 77. The spring 78 is located between the slider 74 and the shell 70. The limiting sleeve 76 and the slide rod 75 are fixedly installed in the limiting sleeve 76. The sum of the lengths is greater than the inner length of the shell 70, so that the slide bar 75 will not slip off the limiting sleeve 76, and the telescopic arm 77 can freely extend and retract through the shell 70, and the other side of the wedge 72 is in contact with the limiting block 79, and the slider 74 and the limiting block 79 can slide relatively. The limiting block 79 is fixedly installed in the shell 70, and the end of the telescopic arm 77 is equipped with a caliper 8. The caliper 8 is arc-shaped and has an opening 80 above the caliper 8. When it is necessary to grind the workpiece, it is only necessary to clamp the workpiece on the caliper 8 at the end of the telescopic arm 77, and then rotate the knob 72. At this time, the wedge 72 on the threaded rod 71 can move along the threaded rod 71, and at the same time push the slider 74, squeezing the spring 78, so that the telescopic arm 77 also moves, so that the position of the workpiece can be accurately adjusted until it is just in contact with the end of the grinding wheel 5. At this time, the power supply can be connected, the switch 2 can be turned on, and the workpiece can be ground. The workpiece can be used as an axis to make the equipment slide or rotate on the workpiece, so that the workpiece is ground evenly and stably.

[0024] Example 2

[0025] like Figure 6 In the second embodiment, other structures remain unchanged. Unlike the first embodiment, the caliper 8 is divided into two parts and a nut 81 and a nut 82 are installed, so that the caliper 8 can adapt to workpieces of different sizes.

[0026] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A micro-axis grinding device with a positioning function, comprising: Handle (1); The invention is characterized in that: a switch (2) is provided on the side of the handle (1); a body (3) is fixedly installed above the handle (1); a power cord (4) is connected to the bottom of the handle (1); a grinding wheel (5) is installed on the front of the body (3); a protective cover (6) is installed below the grinding wheel (5); the protective cover (6) is fixedly installed on the front of the body (3); and a positioning device (7) is also installed on the body (3); The positioning device (7) includes a housing (70), the housing (70) is fixedly mounted on both sides of the machine body (3), a threaded rod (71) is rotatably mounted in the housing (70), one end of the threaded rod (71) is provided with a knob (72), a wedge (73) is rotatably mounted on the threaded rod (71), a threaded groove (730) is provided on the wedge (73), the threaded rod (71) can freely rotate through the threaded groove (730), the wedge (73) is in contact with the slider (74) on the side close to the grinding wheel (5), and the slider (74) is provided with a knob (72) on the side close to the wedge (73). There are two slide bars (75), two limiting sleeves (76) are fixedly installed in the shell (70), the slide bars (75) are slidably installed in the limiting sleeves (76), the slider (74) is provided with a telescopic arm (77) on the side close to the grinding wheel (5), the telescopic arm (77) is sleeved with a spring (78), the spring (78) is located between the slider (74) and the shell (70), the telescopic arm (77) can pass through the shell (70) and freely extend and retract, the other side of the wedge block (73) is in contact with the limiting block (79), and the limiting block (79) is fixedly installed in the shell (70).

2. The micro-axis grinding device with positioning function according to claim 1, characterized in that: The sum of the lengths of the limiting sleeve (76) and the sliding rod (75) is greater than the inner length of the outer shell (70).

3. The micro-axis grinding device with positioning function according to claim 1, characterized in that: The wedge block (73) is trapezoidal, the slider (74) and the wedge block (73) can slide relative to each other, and the slider (74) and the limiting block (79) can slide relative to each other.

4. The micro-axis grinding device with positioning function according to claim 1, characterized in that: The axis of the telescopic arm (77) is aligned with the edge of the grinding wheel (5).

5. The micro-axis grinding device with positioning function according to claim 1, characterized in that: A groove (740) is formed on the upper side of the slider (74), and the groove (740) is U-shaped.

6. The micro-axis grinding device with positioning function according to claim 1, characterized in that: The end of the telescopic arm (77) is provided with a caliper (8), the caliper (8) is in an arc shape, and an opening (80) is provided above the caliper (8).

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