Small universal frequency grinding device

Abstract

The invention discloses a small universal frequency-moving grinding device, which belongs to the technical field of grinding devices, and comprises a base and an upper translation plate, the base is connected with the upper translation plate through four groups of universal telescopic mechanisms, a bracket is fixed at the front part of the base, a driving mechanism is arranged on the bracket, and the driving mechanism is connected with the upper translation plate through the universal telescopic mechanisms. The output end of the driving mechanism is connected with an eccentric sleeve, a transmission rod is detachably fixed to the front portion of the upper translation plate, the lower end of the transmission rod is arranged in an eccentric hole of the eccentric sleeve in a sliding mode, and a grinding bin is detachably fixed to the rear portion of the upper translation plate. During operation, the grinding bin performs revolution motion and up-down reciprocating mechanical vibration, and generated centrifugal force, upward throwing force and gravity act on grinding carborundum abrasive particles and small-sized process workpieces, so that the grinding carborundum abrasive particles and the small-sized process workpieces generate mutual friction and extrusion motion, and efficient grinding and polishing of the small-sized process workpieces are realized.

Description

Technical Field

[0001] The invention belongs to the technical field of grinding devices, and in particular relates to a small universal high-frequency grinding device. Background Art

[0002] The existing small handicraft parts, especially those printed by the new manufacturing process technology FDM additive manufacturing, have rough surfaces and cannot form fine grinding and polishing surfaces for handicraft display and sales.

[0003] Small craft grinding and polishing equipment is mainly operated manually. The existing small polishing equipment uses the centrifugal force of rotation to grind and polish. The abrasive particles and small crafts rotate with the inner wall of the cavity due to the centrifugal force, resulting in poor grinding effect. Some equipments are equipped with blocking blocks to overcome the rotation, but the impact causes surface damage to the small crafts. Therefore, a small universal high-frequency grinding device is urgently needed to solve the shortcomings of the existing technology. Summary of the invention

[0004] The purpose of the present invention is to provide a small universal high-frequency grinding device to solve the deficiencies in the prior art.

[0005] In order to achieve the above-mentioned invention object, the technical solution adopted by the present invention is:

[0006] A small universal high-frequency grinding device comprises: a base and an upper translation plate, wherein the base and the upper translation plate are connected via four sets of universal telescopic mechanisms, a bracket is fixed to the front of the base, a driving mechanism is arranged on the bracket, an eccentric sleeve is connected to the output end of the driving mechanism, a transmission rod is detachably fixed to the front of the upper translation plate, the lower end of the transmission rod is slidably arranged in the eccentric hole of the eccentric sleeve, and a grinding bin is detachably fixed to the rear of the upper translation plate.

[0007] Furthermore, the universal telescopic mechanism comprises: a first bearing seat and a second bearing seat, spherical bearings are installed in the first bearing seat and the second bearing seat, and an elastic telescopic shaft is installed between the two spherical bearings.

[0008] Furthermore, the elastic telescopic shaft includes a lower shaft body and an upper shaft body, the upper shaft body is slidably sleeved on the sliding section of the lower shaft body, the sliding section of the lower shaft body is sleeved with a spring, one end of the spring is fixed on the step of the lower shaft body, and the other end is fixed on the end face of the upper shaft body.

[0009] Furthermore, the driving mechanism includes: a box body, a bevel gear pair is arranged in the box body, the input end of the bevel gear pair is connected to the speed regulating motor, the side end of the eccentric sleeve is provided with a threaded hole, a tightening bolt is arranged in the threaded hole, and the eccentric sleeve is transmission-connected to the output end of the bevel gear pair via the tightening bolt.

[0010] Furthermore, the eccentric sleeve is provided with a plurality of eccentric holes, and the eccentric distances of the eccentric holes are different, and the upper translation plate is provided with transmission rod mounting holes corresponding thereto.

[0011] Furthermore, the grinding chamber includes: a columnar shell, a positioning plate is arranged on the top circumference of the columnar shell, a cover is arranged on the positioning plate, a through hole is arranged at one corner of the positioning plate, and the positioning plate is mounted on the upper translation plate by fixing screws.

[0012] The small universal high-frequency grinding device provided by the present invention has the following advantages compared with the prior art:

[0013] When the present invention is in operation, the grinding chamber performs a revolution motion and reciprocating mechanical vibration, and the generated centrifugal force, upward throwing force and gravity act on the grinding diamond abrasive grains and the small-sized processing parts, causing them to produce mutual friction and extrusion motion, thereby achieving the grinding and polishing work of the small-sized processing parts;

[0014] The device has a relatively small and simple structure, and its operation is stable and reliable. The grinding effect produced by revolution is better than that produced by rotation, and some disadvantages of existing grinding equipment using the centrifugal force of rotation for grinding are avoided, such as: the centrifugal force of rotation causes the grinding diamond abrasive grains and the small process parts to rotate closely against the inner wall of the grinding chamber, resulting in poor grinding effect. In order to overcome this phenomenon, the stopper is set to collide with the small process parts and cause damage, affecting the grinding and polishing effect.

[0015] The grinding chamber of the device can be easily disassembled to select and replace the diamond abrasive particles, so as to produce different surface qualities corresponding to the workpieces of different materials and hardness;

[0016] The device is driven by a speed-regulating motor. The speed is controllable and adjustable, and the processing time can be long or short. The grinding effect and intensity can be controlled by adjusting the speed and the running time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0018] Figure 1 is an axonometric view of the present invention;

[0019] Figure 2 An exploded view of the present invention;

[0020] Figure 3 It is a front view of the present invention;

[0021] Figure 4 is a side view of the present invention;

[0022] Figure 5 It is a top view of the present invention.

[0023] In the figure: 1-base, 2-upper translation plate, 3-bracket, 4-eccentric sleeve, 5-transmission rod, 6-eccentric hole, 7-grinding chamber, 8-first bearing seat, 9-second bearing seat, 10-spherical bearing, 11-lower shaft body, 12-upper shaft body, 13-spring, 14-box, 15-speed regulating motor, 16-tightening bolt, 17-columnar housing, 18-positioning plate, 19-cover, 20-fixing screw. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0025] refer to Figure 1-5 As shown, the present invention provides a small universal high-frequency grinding device, including: a base 1 and an upper translation plate 2, the base 1 and the upper translation plate 2 are connected through four sets of universal telescopic mechanisms, a bracket 3 is fixed to the front of the base 1, a driving mechanism is arranged on the bracket 3, an eccentric sleeve 4 is connected to the output end of the driving mechanism, a transmission rod 5 is detachably fixed to the front of the upper translation plate 2, the lower end of the transmission rod 5 is slidably arranged in the eccentric hole 6 of the eccentric sleeve 4, and a grinding chamber 7 is detachably fixed to the rear of the upper translation plate 2. The universal telescopic mechanism includes: a first bearing seat 8 and a second bearing seat 9, spherical bearings 10 are installed in the first bearing seat 8 and the second bearing seat 9, and an elastic telescopic shaft is installed between the two spherical bearings 10. The elastic telescopic shaft includes a lower shaft body 11 and an upper shaft body 12, wherein the upper shaft body 12 is slidably sleeved on the sliding section of the lower shaft body 11, and a spring 13 is sleeved on the sliding section of the lower shaft body 11, and one end of the spring 13 is fixed on the step of the lower shaft body 11, and the other end is fixed on the end face of the upper shaft body 12. When the present invention is in operation, the grinding chamber 7 performs a revolution motion and reciprocating mechanical vibrations up and down, and the centrifugal force, upward throwing force and gravity generated act on the grinding diamond abrasive grains and small process parts, so that they produce mutual friction and extrusion motion, thereby realizing the grinding and polishing of small process parts. In addition, the present invention has a relatively small and simple structure, stable and reliable operation, and the grinding effect generated by the revolution is better than the grinding effect generated by the rotation, thereby avoiding some disadvantages of the existing grinding equipment that uses the centrifugal force of the rotation for grinding.

[0026] As a preferred embodiment, the driving mechanism includes: a box 14, a bevel gear pair is arranged in the box 14, a speed regulating motor 15 is connected to the input end of the bevel gear pair, a threaded hole is opened at the side end of the eccentric sleeve 4, a jacking bolt 16 is arranged in the threaded hole, and the eccentric sleeve 4 is connected to the output end of the bevel gear pair through the jacking bolt 16. The device is driven by the speed regulating motor 15, the speed is controllable and adjustable, the processing time can be long or short, and the grinding effect and intensity can be controlled by adjusting the speed and the running time.

[0027] As a preferred embodiment, the eccentric sleeve 4 is provided with a plurality of eccentric holes 6, and the eccentric distances of the eccentric holes 6 are different, and the upper translation plate 2 is provided with corresponding transmission rod mounting holes. By adjusting the transmission rod 5 to the eccentric holes 6 with different eccentric distances, the swing amplitude of the grinding chamber 7 can be adjusted.

[0028] As a preferred embodiment, the grinding chamber 7 comprises: a columnar shell 17, a positioning plate 18 is arranged on the top circumference of the columnar shell 17, a cover 19 is arranged on the positioning plate 18, a through hole is arranged at one corner of the positioning plate 18, and the positioning plate 18 is mounted on the upper translation plate 2 by fixing screws 20. The grinding chamber 7 of the device can be easily disassembled to select and replace the diamond abrasive grains for grinding, so as to produce different surface qualities corresponding to workpieces of different material hardness.

[0029] The working principle of the present invention is:

[0030] When the grinding chamber 7 is working, the grinding diamond abrasive grains and small-sized processing parts are loaded therein, and gravity acts on the upper translation plate 2, the bearing seat, the four spherical bearings 10, and the elastic telescopic shaft. The spring 13 is compressed and contracted to make the grinding chamber 7 descend, and the grinding diamond abrasive grains and the small-sized processing parts rub against each other during the downward movement. The grinding chamber 7 revolves and swings due to the centrifugal force, and the spring 13 is compressed and becomes smaller. The spring 13 recovers elastically, causing the grinding chamber 7 to be thrown upward, and the grinding diamond abrasive grains and the small-sized processing parts rub against each other during the upward movement. This upward and downward movement occurs continuously and uninterruptedly during the revolution of the grinding chamber 7.

[0031] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0032] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0033] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A small universal high-frequency grinding device, characterized in that: include: A base (1) and an upper translation plate (2), wherein the base (1) and the upper translation plate (2) are connected via four sets of universal telescopic mechanisms, a bracket (3) is fixed to the front of the base (1), a driving mechanism is arranged on the bracket (3), an eccentric sleeve (4) is connected to the output end of the driving mechanism, a transmission rod (5) is detachably fixed to the front of the upper translation plate (2), the lower end of the transmission rod (5) is slidably arranged in an eccentric hole (6) of the eccentric sleeve (4), and a grinding bin (7) is detachably fixed to the rear of the upper translation plate (2).

2. A small universal high-frequency grinding device according to claim 1, characterized in that: The universal telescopic mechanism comprises: a first bearing seat (8) and a second bearing seat (9); spherical bearings (10) are installed in both the first bearing seat (8) and the second bearing seat (9); and an elastic telescopic shaft is installed between the two spherical bearings (10).

3. A small universal high-frequency grinding device according to claim 2, characterized in that: The elastic telescopic shaft comprises a lower shaft body (11) and an upper shaft body (12); the upper shaft body (12) is slidably sleeved on a sliding section of the lower shaft body (11); a spring (13) is sleeved on the sliding section of the lower shaft body (11); one end of the spring (13) is fixed on a step of the lower shaft body (11), and the other end is fixed on an end surface of the upper shaft body (12).

4. A small universal high-frequency grinding device according to claim 1, characterized in that: The driving mechanism comprises: a box (14), a bevel gear pair is arranged in the box (14), the input end of the bevel gear pair is connected to a speed regulating motor (15), a threaded hole is opened at the side end of the eccentric sleeve (4), a tightening bolt (16) is arranged in the threaded hole, and the eccentric sleeve (4) is drivingly connected to the output end of the bevel gear pair via the tightening bolt (16).

5. A small universal high-frequency grinding device according to claim 1, characterized in that: The eccentric sleeve (4) is provided with a plurality of eccentric holes (6), and the eccentric distances of the eccentric holes (6) are different. The upper translation plate (2) is provided with transmission rod mounting holes corresponding thereto.

6. A small universal high-frequency grinding device according to claim 1, characterized in that: The grinding chamber (7) comprises: a columnar shell (17), a positioning plate (18) is arranged on the top circumference of the columnar shell (17), a cover (19) is arranged on the positioning plate (18), a through hole is arranged at one corner of the positioning plate (18), and the positioning plate (18) is mounted on the upper translation plate (2) by means of fixing screws (20).

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