A vertical spindle sander

Abstract

The utility model discloses a kind of up-down type polishing machines, it includes frame, more than one polishing mechanism is connected on frame;Polishing mechanism includes vertical fixed on the shaft sleeve of frame, rotatingly connected with the shaft sleeve in the shaft sleeve, the top end of the shaft sleeve is connected with grinding disc, the bottom end of the shaft sleeve is connected with rotating drive part;Two sliding seats are slidably connected on frame, sliding drive part is connected on each sliding seat;Opposite side surface on two sliding seats is vertically slidably connected with mounting seat, aluminum row for clamping workpiece is rotatably connected on mounting seat, the two sides of mounting seat are respectively connected with rotation drive motor for driving aluminum row rotation and autorotation drive motor for driving the autorotation of multiple clamping rods in aluminum row;Lifting mechanism for driving mounting seat to slide up and down on sliding seat is connected on each sliding seat.The utility model not only can improve polishing precision, also have the advantages that processing efficiency is good, occupied space is smaller, equipment cost is lower and energy consumption is lower.

Description

Technical Field

[0001] This utility model relates to the field of grinding equipment, and in particular to a lifting grinding machine. Background Technology

[0002] Many existing crystal glass decorative beads have multiple continuous facets on their surface. To efficiently process these beads, a crystal grinding and polishing machine similar to the one disclosed in ZL202123209406.5 is typically used. This machine uses two sliding frames mounted on a frame, each with a rotating aluminum frame equipped with multiple clamping parts. These aluminum frames can rotate, and the clamping parts on them rotate synchronously. Simultaneously, multiple rotating and lifting grinding discs are connected to the frame. This allows the clamping parts on the two aluminum frames to simultaneously clamp the crystal glass beads, perform grinding and alignment, and complete the facet processing of the entire crystal glass bead surface in one operation, resulting in high processing efficiency. However, because the grinding discs require synchronized lifting and rotation control, the overall structural stability of this type of equipment is relatively low, making it prone to vibration and reducing grinding accuracy.

[0003] Therefore, existing grinding machines suffer from low grinding precision. Utility Model Content

[0004] The purpose of this invention is to provide a lifting and lowering type grinding machine. This invention has the advantage of high grinding precision.

[0005] The technical solution of this utility model is as follows: A lifting grinding machine includes a frame, on which one or more grinding mechanisms are connected; each grinding mechanism includes a bushing fixed vertically on the frame, a vertical rotating shaft rotatably connected inside the bushing, a horizontal grinding disc connected to the top of the rotating shaft, and a rotating drive unit connected to the bottom of the rotating shaft; two sliding seats are slidably connected to the frame, each sliding seat straddling the grinding disc, and a sliding drive unit for driving the sliding seat to slide relative to the frame is connected between each sliding seat and the frame; a mounting seat is vertically slidably connected to each of the two sliding seats on opposite sides, an aluminum strip for clamping workpieces is rotatably connected to the mounting seat, and a rotary drive motor for driving the aluminum strip to rotate and a self-rotating drive motor for driving multiple clamping rods in the aluminum strip to rotate synchronously are respectively connected to both sides of the mounting seat; each sliding seat is connected to a lifting mechanism for driving the mounting seat to slide up and down relative to the sliding seat.

[0006] In the aforementioned lifting-type grinding machine, the sliding seat is fixedly connected to multiple vertical slide rails that are spaced apart along the horizontal direction, and each vertical slide rail is slidably engaged with a slider that is fixedly connected to the mounting base.

[0007] In the aforementioned type of lifting grinding machine, the lifting mechanism includes a servo motor that is vertically fixedly connected to a sliding seat, and a vertical lead screw is connected to the output shaft of the servo motor. The lead screw is threaded with a sliding sleeve fixed to the mounting seat.

[0008] In the aforementioned lifting-type grinding machine, horizontal slide rails are connected to both sides of the grinding disc on the frame, and the two horizontal slide rails are arranged parallel to each other; sliding blocks that are slidably engaged on the two horizontal slide rails are fixedly connected to the bottom ends of both sides of the two sliding seats; the sliding drive unit is a linear module fixed on the frame and parallel to the horizontal slide rails.

[0009] In the aforementioned lifting-type grinding machine, there are three grinding mechanisms on the frame. The grinding disc of the middle grinding mechanism is located above the grinding discs of the two side grinding mechanisms, and one side of the grinding discs of the two side grinding mechanisms is located below the grinding disc of the middle grinding mechanism.

[0010] In the aforementioned lifting-type grinding machine, the rotating drive unit includes three pulleys that are vertically rotatably connected to one side of the frame. The three pulleys correspond one-to-one with three rotating shafts. A drive belt is sleeved between the bottom of each of the three pulleys and the corresponding rotating shaft, and a transmission belt is sleeved between each two adjacent pulleys. A drive motor fixed on the frame is connected to one of the pulleys.

[0011] Compared with the prior art, this utility model fixes the grinding mechanism on the frame (that is, the bushing is fixed vertically on the frame, a vertical shaft is rotatably connected inside the bushing, a horizontal grinding disc is fixedly connected to the top of the shaft, and a rotation drive unit is connected to the bottom of the shaft), so that the grinding disc only rotates; by vertically raising and lowering the aluminum strip on the sliding seat (that is, the lifting mechanism controls the mounting seat to rise and fall relative to the sliding seat, so that the aluminum strip on the mounting seat and the workpiece held by the multiple clamping rods on the aluminum strip rise and fall relative to the grinding disc), the equipment is improved from the traditional lower lifting structure with the grinding disc rising and falling below to an upper lifting structure with the aluminum strip rising and falling above, which improves the stability of the grinding disc during grinding and improves the grinding accuracy.

[0012] In addition, in this invention, the sliding seat and the mounting seat are connected by multiple vertical slide rails and sliders that are spaced apart along the horizontal direction, which allows the mounting seat to slide up and down relative to the sliding seat more stably, thus improving the grinding accuracy.

[0013] The lifting mechanism uses a servo motor that is vertically fixed on the sliding seat to drive the lead screw to rotate. This allows the mounting seat, which is threaded onto the lead screw, to slide up and down relative to the sliding seat with precision. The control accuracy is good, thereby improving the grinding precision control.

[0014] There are three grinding mechanisms. One side of the grinding disc in the two grinding mechanisms is located below the grinding disc in the middle grinding mechanism, so that the workpieces clamped on the aluminum bars in the two sliding seats can be ground simultaneously on both sides of the grinding discs or the middle grinding disc. This improves processing efficiency while shortening the overall length of the machine and reducing the space occupied by the machine.

[0015] By installing three pulleys on one side of each of the three rotating shafts, and connecting each pulley and its corresponding shaft bottom with a drive belt, and connecting a transmission belt between two adjacent pulleys, it is possible to synchronously drive the three rotating shafts to rotate by connecting a drive motor to only one of the pulleys, thus saving equipment costs and energy consumption.

[0016] Therefore, this invention not only improves grinding precision, but also has the advantages of better processing efficiency, smaller footprint, lower equipment cost, and lower energy consumption. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a structural diagram of the rotation drive unit and the grinding mechanism.

[0019] Figure 3 This is a structural diagram of the left side of the frame;

[0020] Figure 4 This is a structural diagram of the sliding seat.

[0021] The labels in the attached diagram are as follows: 1-Frame, 2-Sleeve, 3-Rotating shaft, 4-Grinding disc, 5-Sliding seat, 6-Mounting seat, 7-Aluminum strip, 8-Rotary drive motor, 9-Self-rotating drive motor, 10-Vertical slide rail, 11-Slider, 12-Servo motor, 13-Lead screw, 14-Sliding sleeve, 15-Horizontal slide rail, 16-Sliding block, 17-Linear module, 18-Pulley, 19-Drive belt, 20-Transmission belt, 21-Drive motor. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0023] Example. A lifting-type grinding machine, configured as follows: Figures 1 to 4As shown, the system includes a frame 1, on which one or more grinding mechanisms are connected. Each grinding mechanism includes a bushing 2 vertically fixed to the frame 1, with a vertical rotating shaft 3 rotatably connected inside the bushing 2. A horizontal grinding disc 4 is connected to the top of the rotating shaft 3, and a rotating drive unit is connected to the bottom of the rotating shaft 3. Two sliding seats 5 are slidably connected to the frame 1, each sliding seat 5 straddling the grinding disc 4. A sliding drive unit for driving the sliding seat 5 to slide relative to the frame 1 is connected between each sliding seat 5 and the frame 1. Mounting seats 6 are vertically slidably connected to opposite sides of each of the two sliding seats 5. An aluminum strip 7 for clamping workpieces is rotatably connected to the mounting seats 6. A rotary drive motor 8 for driving the aluminum strip 7 to rotate and a self-rotating drive motor 9 for driving the multiple clamping rods in the aluminum strip 7 to rotate synchronously are connected to both sides of the mounting seats 6. A lifting mechanism for driving the mounting seat 6 to slide up and down relative to the sliding seat 5 is connected to each sliding seat 5.

[0024] The sliding seat 5 is fixedly connected to multiple vertical slide rails 10 that are spaced apart along the horizontal direction, and each vertical slide rail 10 is slidably engaged with a slider 11 that is fixedly connected to the mounting base 6.

[0025] The lifting mechanism includes a servo motor 12 that is vertically fixedly connected to the sliding seat 5. A vertical lead screw 13 is connected to the output shaft of the servo motor 12. The lead screw 13 is threaded onto a sliding sleeve 14 that is fixed to the mounting seat 6.

[0026] The frame 1 is connected to two horizontal slide rails 15 on both sides of the grinding disc 4, and the two horizontal slide rails 15 are arranged parallel to each other; the bottom ends of the two sliding seats 5 are fixedly connected to sliding blocks 16 that are slidably engaged on the two horizontal slide rails 15; the sliding drive unit is a linear module 17 fixed on the frame 1 and parallel to the horizontal slide rails 15.

[0027] The frame 1 has three grinding mechanisms. The grinding disc 4 of the middle grinding mechanism is located above the grinding disc 4 of the two side grinding mechanisms, and one side of the grinding disc 4 of the two side grinding mechanisms is located below the grinding disc 4 of the middle grinding mechanism. The rotation drive unit includes three pulleys 18 that are vertically rotatably connected to one side of the frame 1. The three pulleys 18 correspond one-to-one with three rotating shafts 3. A drive belt 19 is sleeved between the bottom of each of the three pulleys 18 and the corresponding rotating shaft 3. A transmission belt 20 is sleeved between each two adjacent pulleys 18. A drive motor 21 fixed on the frame 1 is connected to one of the pulleys 18.

[0028] Working principle: Powering on the drive motor 21 on the frame 1 starts the drive motor 21, which drives the pulley 18 connected to it to rotate, and drives the other two pulleys 18 to rotate synchronously through two transmission belts 20; after the three pulleys 18 rotate, they can drive the three rotating shafts 3 to rotate in their corresponding bushings 2 through three drive belts 19, thereby causing the grinding disc 4 at the top of the three rotating shafts 3 to rotate.

[0029] Initially, the left sliding seat 5 is located at the loading station. At this time, multiple workpieces can be clamped at the bottom ends of the multiple clamping rods of the aluminum strip 7 on the left sliding seat 5. Then, the linear module 17 on the frame 1 drives the sliding blocks 16 at the bottom of both sides of the sliding seat 5 to slide along the two horizontal slide rails 15 to above the left grinding disc 4. Next, the servo motor 12 on the sliding seat 5 drives the lead screw 13 to rotate. The sliding sleeve 14, which is threaded onto the lead screw 13, drives the mounting seat 6 fixed on it to move downward relative to the sliding seat 5 (the sliding seat 5 is fixed with multiple vertical slide rails 10 spaced apart in the horizontal direction, each...). Each vertical slide rail 10 has a slider 11 fixed to the mounting base 6, which makes the mounting base 6 more stable when sliding up and down relative to the sliding base 5. The workpiece on the aluminum strip 7 on the sliding base 5 comes into contact with the grinding disc 4 for grinding. The aluminum strip 7 is rotated by the rotary drive motor 8 to adjust the grinding angle of the workpiece. All the clamping rods on the aluminum strip 7 are rotated by the self-rotation drive motor 9 to adjust the grinding side of the workpiece until the bottom of the workpiece is ground. Then, the left sliding base 5 is moved to the middle grinding disc 4 for further grinding until the bottom of the workpiece is polished.

[0030] Next, the linear module 17 between the two sliding seats 5 and the frame 1 brings the two sliding seats 5 closer together. Under the control of the two rotary drive motors 8, the aluminum bars 7 on the two sliding seats 5 are arranged horizontally facing each other, and the workpieces on the multiple clamping rods on the two aluminum bars 7 are aligned, so that the workpiece is clamped on the aluminum bar 7 on the right sliding seat 5. At this time, the unpolished top of the workpiece is facing downwards. Subsequently, the left sliding seat 5 moves back to the loading station to perform workpiece clamping and subsequent polishing operations. During this process, the right sliding seat 5 slides above the right grinding disc 4 and polishes the unpolished top of the workpiece until the workpiece is polished. Then, the right sliding seat 5 slides above the middle grinding disc 4 and further polishes the workpiece until it is polished. Finally, the right sliding seat 5 slides to the unloading station on the far right of the frame 1 for unloading.

Claims

1. A lifting-type grinding machine, comprising a frame (1), wherein one or more grinding mechanisms are connected to the frame (1); characterized in that: The grinding mechanism includes a bushing (2) fixed vertically on a frame (1), a vertical rotating shaft (3) rotatably connected inside the bushing (2), a horizontal grinding disc (4) connected to the top of the rotating shaft (3), and a rotating drive unit connected to the bottom of the rotating shaft (3); two sliding seats (5) are slidably connected on the frame (1), each sliding seat (5) straddling the grinding disc (4), and a sliding drive unit for driving the sliding seat (5) to slide relative to the frame (1) is connected between each sliding seat (5) and the frame (1). Moving part; a mounting base (6) is vertically slidably connected to one side of each of the two sliding seats (5), an aluminum strip (7) for clamping the workpiece is rotatably connected to the mounting base (6), a rotary drive motor (8) for driving the aluminum strip (7) to rotate and a self-rotation drive motor (9) for driving multiple clamping rods in the aluminum strip (7) to rotate synchronously are respectively connected to both sides of the mounting base (6); a lifting mechanism for driving the mounting base (6) to slide up and down relative to the sliding seat (5) is connected to each of the sliding seats (5).

2. The lifting and lowering type grinding machine according to claim 1, characterized in that: The sliding seat (5) is fixedly connected to a plurality of vertical slide rails (10) spaced apart in the horizontal direction, and each vertical slide rail (10) is slidably engaged with a slider (11) fixedly connected to the mounting base (6).

3. The lifting and lowering type grinding machine according to claim 1, characterized in that: The lifting mechanism includes a servo motor (12) that is vertically fixedly connected to the sliding seat (5). A vertical lead screw (13) is connected to the output shaft of the servo motor (12). The lead screw (13) is threaded with a sliding sleeve (14) fixed on the mounting seat (6).

4. The lifting and lowering type grinding machine according to claim 1, characterized in that: The frame (1) is connected to two horizontal slide rails (15) on both sides of the grinding disc (4), and the two horizontal slide rails (15) are arranged parallel to each other; the bottom ends of the two sliding seats (5) are fixedly connected to sliding blocks (16) that are slidably engaged on the two horizontal slide rails (15); the sliding drive unit is a linear module (17) fixed on the frame (1) and parallel to the horizontal slide rails (15).

5. A lifting-type grinding machine according to claim 1, characterized in that: The frame (1) has three grinding mechanisms. The grinding disc (4) of the middle grinding mechanism is located above the grinding disc (4) of the two grinding mechanisms. One side of the grinding disc (4) of the two grinding mechanisms is located below the grinding disc (4) of the middle grinding mechanism.

6. A lifting-type grinding machine according to claim 5, characterized in that: The rotation drive unit includes three pulleys (18) that are vertically rotatably connected to one side of the frame (1). The three pulleys (18) correspond one-to-one with three rotating shafts (3). A drive belt (19) is sleeved between the bottom of each of the three pulleys (18) and the corresponding rotating shaft (3). A transmission belt (20) is sleeved between each of two adjacent pulleys (18). A drive motor (21) fixed on the frame (1) is connected to one of the pulleys (18).

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