Oscillating eccentric mechanism for a polishing machine

Abstract

The utility model belongs to metal surface finishing technology field especially, and is especially related to a polishing machine's vibration swing eccentric mechanism. This vibration swing eccentric mechanism includes eccentric mechanism and mounting mechanism, and the eccentric mechanism includes eccentric shaft connecting disc, and the upper end of eccentric shaft connecting disc is provided with adjusting groove, and the inside of adjusting groove is rotatably connected with screw rod, and the screw rod is threadedly connected with sliding block, and the top of sliding block is fixedly installed with connecting seat, and the upper end center of connecting seat is fixedly installed with connecting screw rod, and the both sides of adjusting groove are provided with sliding slot, and the both sides of sliding block are slidably connected with sliding slot. The mounting mechanism includes mounting disc, and the bottom of eccentric shaft connecting disc is provided with mounting disc, and the bottom center of mounting disc is fixedly installed with shaft coupling. The utility model is guided by sliding slot through the thread transmission of screw rod and sliding block, realizes the accurate adjustment of eccentric distance, can adapt to the vibration swing demand of different polishing technology, and improves the precision and convenience of polishing machine eccentricity adjustment.

Description

Technical Field

[0001] This utility model belongs to the field of metal surface finishing technology, and in particular relates to a vibrating eccentric mechanism for a polishing machine. Background Technology

[0002] Polishing machines, as precision metal surface finishing equipment, are widely used in hardware accessories, medical devices, automotive parts and other fields. Their core function is to remove burrs and scratches from the workpiece surface through the high-speed movement and oscillation of the polishing line, so as to achieve mirror or high-precision surface finish.

[0003] In practical applications of polishing machines, different polishing processes require different vibration parameters: coarse polishing requires a larger eccentricity to generate a larger vibration amplitude, quickly removing burrs and deep scratches from the workpiece surface; fine polishing requires a smaller eccentricity to generate a fine vibration, achieving a high-gloss mirror finish; at the same time, workpieces of different materials and sizes also require corresponding adjustments to the eccentricity to optimize the polishing effect. However, the existing oscillating eccentric mechanism uses nuts at both ends to connect the adjusting screw to the oscillating shaft and eccentric wheel. The position is fixed and locked by the thread engagement between the nut and the screw, which cannot adjust the eccentric distance. Moreover, the nut is prone to loosening during the rotation of the eccentric shaft connecting plate, which will cause the oscillating shaft to shift in the groove, affecting the consistency of polishing quality, and greatly increasing maintenance time, which seriously restricts the production progress. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model provides a vibrating eccentric mechanism for a polishing machine, which solves the problem mentioned in the background art that the nut is prone to loosening during the rotation of the eccentric shaft connecting disc, causing the vibrating shaft to shift in the slide groove, and thus leading to frequent breakage of the adjusting screw and connecting shaft.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows: A vibrating eccentric mechanism for a polishing machine includes an eccentric mechanism and a mounting mechanism. The eccentric mechanism includes an eccentric shaft connecting plate, an adjusting groove at the top of the eccentric shaft connecting plate, a lead screw rotatably mounted inside the adjusting groove, a slider threaded to the outer end of the lead screw, a connecting seat fixedly connected to the top of the slider, and a connecting screw fixedly connected to the top of the connecting seat. Sliding grooves are provided on both sides of the inner side walls of the adjusting groove, and the two sides of the slider are slidably connected to the sliding grooves. The lead screw is used to drive the slider to move along the sliding grooves to adjust the eccentric distance.

[0006] Optionally, the mounting mechanism includes a mounting plate, which is located at the bottom end of the eccentric shaft connecting plate. A coupling is fixedly installed at the center of the bottom end of the mounting plate. Several mounting holes are opened along the edge of the top surface of the eccentric shaft connecting plate, and fixing bolts are movably inserted into the interior of each mounting hole.

[0007] Optionally, threaded holes are provided at the top of the mounting plate at the position of the mounting hole, and the bottom end of the fixing bolt is threadedly connected to the threaded hole.

[0008] Optionally, an adjustment box is fixedly connected to the outer end face of the eccentric shaft connecting plate at the position opposite to the adjustment groove. A worm gear is rotatably connected inside the adjustment box, and the central shaft of the worm gear is fixedly connected to the lead screw.

[0009] Optionally, a worm gear is rotatably connected to one side of the top of the regulating box, and the worm gear meshes with the worm wheel.

[0010] Optionally, a pre-drilled hole is provided on one side of the top of the regulating box, and an internal hexagonal knob is rotatably connected inside the pre-drilled hole. The bottom end of the internal hexagonal knob is fixedly connected to the top end of the worm gear.

[0011] Optionally, telescopic dust covers are fixedly installed at both ends of the inner side of the adjustment groove, and the opposing ends of a pair of telescopic dust covers are fixedly connected to the two ends of the slider respectively.

[0012] This utility model has the following advantages and beneficial effects: This invention achieves precise and continuous adjustment of the eccentricity through the threaded transmission between the lead screw and the slider, meeting the different process requirements of coarse polishing with large vibration amplitude and fine polishing with small vibration amplitude. It effectively adapts to the personalized polishing parameter requirements of workpieces of different materials and sizes. The self-locking mechanism using worm gear and worm wheel meshing transmission can firmly lock the lead screw position, effectively solving the technical problem of loosening during the rotation of the eccentric shaft connecting disc in traditional nut connection methods. It prevents the slider from accidentally shifting within the groove, ensuring that the set eccentricity parameter can be maintained stably for a long time, and avoiding frequent breakage of the adjusting screw and connecting shaft. It effectively improves the consistency of polishing quality, reduces equipment maintenance time, and improves production efficiency and economic benefits. Attached Figure Description

[0013] Figure 1 This is an overall structural diagram of the oscillating eccentric mechanism of the polishing machine of this utility model; Figure 2 This is a partial view of the oscillating eccentric mechanism of the polishing machine of this utility model; Figure 3 Explosion of the oscillating eccentric mechanism of the polishing machine of this utility model Figure 1 ; Figure 4 Explosion of the oscillating eccentric mechanism of the polishing machine of this utility model Figure 2 ; Figure 5 This is a cross-sectional view of the regulating box of this utility model.

[0014] Reference numerals in the attached drawings: 1. Eccentric mechanism; 101. Eccentric shaft connecting plate; 102. Connecting screw; 103. Mounting hole; 104. Fixing bolt; 105. Adjusting groove; 106. Connecting seat; 107. Adjusting box; 108. Telescopic dust cover; 109. Lead screw; 110. Slide groove; 111. Sliding block; 112. Worm gear; 113. Worm; 114. Hexagonal knob; 115. Reserved hole; 2. Mounting mechanism; 201. Mounting plate; 202. Coupling; 203. Threaded hole; 3. Polishing head frame; 4. Motor. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0017] Example like Figures 1-5 As shown, a vibrating eccentric mechanism for a polishing machine includes an eccentric mechanism 1 and a mounting mechanism 2. The eccentric mechanism 1 includes an eccentric shaft connecting plate 101. An adjustment groove 105 is provided at the top of the eccentric shaft connecting plate 101. A lead screw 109 is rotatably provided inside the adjustment groove 105. A slider 111 is threadedly connected to the outer end of the lead screw 109. A connecting seat 106 is fixedly connected to the top of the slider 111. A connecting screw 102 is fixedly connected to the top of the connecting seat 106. Sliding grooves 110 are provided on both sides of the inner side wall of the adjustment groove 105. The two sides of the slider 111 are slidably connected to the sliding grooves 110. The lead screw 109 is used to drive the slider 111 to move along the sliding grooves 110 to adjust the eccentric distance.

[0018] Furthermore, the installation mechanism 2 includes an installation plate 201, which is located at the bottom end of the eccentric shaft connecting plate 101. A coupling 202 is fixedly installed at the center of the bottom end of the installation plate 201. Several installation holes 103 are opened along the edge of the top surface of the eccentric shaft connecting plate 101. Fixing bolts 104 are movably inserted into the interior of each installation hole 103. The installation holes 103 on the eccentric shaft connecting plate 101 provide installation space for the fixing bolts 104. The fixing bolts 104 can initially position the eccentric shaft connecting plate 101 and the installation plate 201, which facilitates subsequent precise docking and fixing, and improves the ease of assembly.

[0019] Furthermore, the top of the mounting plate 201 is provided with threaded holes 203 at the position of the mounting hole 103. The bottom end of the fixing bolt 104 is threadedly connected to the threaded hole 203. The threaded hole 203 of the mounting plate 201 and the fixing bolt 104 are threadedly connected, which can firmly fix the eccentric shaft connecting plate 101 and the mounting plate 201, avoid relative displacement between the two during the vibration process, ensure the operational stability of the eccentric mechanism 1, and prevent power transmission loss.

[0020] Furthermore, an adjustment box 107 is fixedly connected to the outer circular end face of the eccentric shaft connecting plate 101 at a position opposite to the adjustment groove 105. A worm gear 112 is rotatably connected inside the adjustment box 107. The central shaft of the worm gear 112 is fixedly connected to the lead screw 109. The adjustment box 107 provides protection and installation support for the worm gear 112. The worm gear 112 is connected to the lead screw 109 and can transmit power to drive the lead screw 109 to rotate. At the same time, the adjustment box 107 can isolate external dust and impurities, avoid affecting the meshing transmission between the worm gear 112 and the worm 113, and extend the service life of the components.

[0021] Furthermore, a worm gear 113 is rotatably connected to one side of the top of the regulating box 107. The worm gear 113 meshes with the worm wheel 112. The meshing of the worm gear 113 and the worm wheel 112 can change the direction of power transmission, converting the rotational power of the hexagonal knob 114 into the rotational power of the lead screw 109. Moreover, the worm gear transmission has a self-locking characteristic, which can fix the position of the lead screw 109, prevent the slider 111 from moving accidentally, and ensure the stability of the eccentric position.

[0022] Furthermore, a pre-drilled hole 115 is provided on one side of the top of the adjustment box 107. An internal hexagonal knob 114 is rotatably connected inside the pre-drilled hole 115. The bottom end of the internal hexagonal knob 114 is fixedly connected to the top end of the worm gear 113. The pre-drilled hole 115 of the adjustment box 107 provides installation space for the internal hexagonal knob 114. The internal hexagonal knob 114 allows operators to easily rotate the worm gear 113 using an internal hexagonal tool. The operation is convenient and can accurately control the rotation angle of the lead screw 109, thereby accurately adjusting the eccentric position and improving the adjustment accuracy.

[0023] Furthermore, telescopic dust covers 108 are fixedly installed at both ends of the inner side of the adjusting groove 105. The opposing ends of a pair of telescopic dust covers 108 are fixedly connected to both ends of the slider 111. The telescopic dust covers 108 in the adjusting groove 105 can extend and retract with the slider 111, covering the inner space of the adjusting groove 105, preventing dust, metal shavings and other impurities from entering the adjusting groove 105, avoiding contamination of the lead screw 109 and the slide 110, and ensuring smooth sliding of the slider 111 and transmission accuracy of the lead screw 109.

[0024] Specifically, the working principle of the oscillating eccentric mechanism of this polishing machine is as follows: In use, first, the coupling 202 at the bottom of the mounting plate 201 of the mounting mechanism 2 is connected to the drive shaft of the motor 4. Then, the fixing bolts 104 in the mounting holes 103 on the eccentric shaft connecting plate 101 are aligned with the threaded holes 203 of the mounting plate 201 and tightened to achieve a firm fixation between the eccentric shaft connecting plate 101 and the mounting plate 201. Next, the eccentric head bracket 3 is installed on the connecting screw 102 and secured with a nut. When adjusting the eccentric position according to polishing requirements, an Allen wrench is inserted into the Allen knob 114 in the reserved hole 115 of the adjustment box 107 and rotated, driving the worm gear 113 to rotate. The worm gear 113 meshes with the worm wheel 112, causing the worm wheel 112 to drive the lead screw 10 in the adjustment groove 105. 9. Rotation; the lead screw 109 is threadedly connected to the slider 111, and the slider 111 slides along the slide groove 110. The rotation of the lead screw 109 drives the slider 111, the connecting seat 106 and the connecting screw 102 to move. At the same time, the telescopic dust cover 108 in the adjusting groove 105 moves and extends with the slider 111 to prevent impurities from entering. After adjusting to the required eccentric position, due to the self-locking characteristics of the worm gear 113 and the worm wheel 112, the lead screw 109 is fixed and the connecting screw 102 maintains a stable eccentric position, which makes it convenient for the user to install the eccentric head frame on the connecting screw 102. The drive shaft drives the mounting plate 201, the eccentric shaft connecting plate 101 and the connecting screw 102 to perform eccentric rotation through the coupling 202. The connecting screw 102 drives the polishing head frame to vibrate, realizing the vibratory polishing operation of the polishing machine.

[0025] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vibrating eccentric mechanism for a polishing machine, characterized in that: The device includes an eccentric mechanism (1) and an installation mechanism (2). The eccentric mechanism (1) includes an eccentric shaft connecting plate (101). An adjustment groove (105) is provided at the top of the eccentric shaft connecting plate (101). A lead screw (109) is rotatably provided inside the adjustment groove (105). A slider (111) is threaded to the outer end of the lead screw (109). A connecting seat (106) is fixedly connected to the top of the slider (111). A connecting screw (102) is fixedly connected to the top of the connecting seat (106). Sliding grooves (110) are provided on both sides of the inner side wall of the adjustment groove (105). The two sides of the slider (111) are slidably connected to the sliding grooves (110). The lead screw (109) is used to drive the slider (111) to move along the sliding grooves (110) to adjust the eccentric distance.

2. The oscillating eccentric mechanism of a polishing machine according to claim 1, characterized in that: The installation mechanism (2) includes an installation plate (201), which is located at the bottom end of the eccentric shaft connecting plate (101). A coupling (202) is fixedly installed at the center of the bottom end of the installation plate (201). Several installation holes (103) are opened along the edge of the top surface of the eccentric shaft connecting plate (101), and fixing bolts (104) are movably inserted into the interior of each installation hole (103).

3. The oscillating eccentric mechanism of a polishing machine according to claim 2, characterized in that: The top of the mounting plate (201) is provided with threaded holes (203) at the position of the mounting hole (103), and the bottom end of the fixing bolt (104) is threadedly connected to the threaded holes (203).

4. The oscillating eccentric mechanism of a polishing machine according to claim 1, characterized in that: An adjustment box (107) is fixedly connected to the outer end face of the eccentric shaft connecting plate (101) at a position opposite to the adjustment groove (105). A worm gear (112) is rotatably connected inside the adjustment box (107), and the central shaft of the worm gear (112) is fixedly connected to the lead screw (109).

5. The oscillating eccentric mechanism of a polishing machine according to claim 4, characterized in that: The top side of the inner end of the regulating box (107) is rotatably connected to a worm (113), and the worm (113) meshes with the worm wheel (112).

6. The oscillating eccentric mechanism of a polishing machine according to claim 5, characterized in that: The top side of the regulating box (107) has a reserved hole (115), and an internal hexagonal knob (114) is rotatably connected inside the reserved hole (115). The bottom end of the internal hexagonal knob (114) is fixedly connected to the top end of the worm gear (113).

7. The oscillating eccentric mechanism of a polishing machine according to claim 1, characterized in that: Both ends of the adjustment groove (105) are fixedly installed with telescopic dust covers (108), and the opposing ends of a pair of telescopic dust covers (108) are fixedly connected to the two ends of the slider (111).

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