CN108789093A - A kind of crystal flat-grinding machine - Google Patents

Abstract

A crystal flat grinding machine of the present invention comprises: a frame, a rotary fixture table, and a grinding device; five sets of grinding devices are installed and fixed on the top of the frame; shaft sleeve; the frame is connected with a rotary fixture table and a power output device through a shaft sleeve; a push mechanism is installed and fixed at the bottom of the frame corresponding to each set of grinding devices; a crystal of the present invention The flat grinder is equipped with five sets of grinding devices for synchronous grinding, and the five sets of grinding devices can be equipped with three types of grinding discs: rough grinding, fine grinding and polishing, which can achieve finer grinding. The push mechanism can replace manual pressing and save labor. Cost, the fixture is connected with the universal bearing shaft, which can produce reasonable swing, can make the crystal blank and the grinding disc fit better, and grind out a plane, and at the same time can avoid direct hard contact between the crystal blank and the grinding disc, which will cause material collapse and waste Happening.

Description

A crystal flat grinder

technical field

The invention relates to a crystal flat grinder, which belongs to the field of mechanical equipment.

Background technique

In the processing of crystal jewelry, the flat grinding process is indispensable. At present, there are two types of flat grinding processes. One is to manually press the crystal blank and grind it on the grinding disc. This method has low processing efficiency. The planes produced are also different, which affects the beauty of crystal jewelry; the other adopts automatic grinding technology, which has become the mainstream now, but the existing automatic grinding machine fixtures are fixed, resulting in direct hard contact between the crystal blank and the grinding disc for grinding. Once the grinding disc eats too much material, it is easy to break the hard crystal, resulting in waste, and hard contact will also cause the motor to jump, so that the flatness cannot be guaranteed, which directly affects the grinding effect.

Contents of the invention

(1) Technical problems to be solved

In order to solve the above problems, the present invention proposes a crystal flat grinder.

(2) Technical solutions

A flat crystal grinding machine of the present invention comprises: a frame, a rotary fixture table, and a polishing device; the frame is formed by fixedly connecting five legs and a plurality of cross bars; the tops of the five legs are fixed There is a set of grinding device; the inner center of the frame is provided with two vertical bottom bushings; the inside of the frame is connected with a rotary fixture table through the bushings; the bottom of the frame is also fixed with a servo motor A power output device composed of a reducer; the power output device is connected to a rotary fixture table; a push mechanism is installed and fixed on the bottom of the frame corresponding to each set of grinding devices directly below.

Further, the rotary clamp table includes: a bearing sleeve, a fixed shaft, a large gear, and six sets of clamp frames; the internal shaft of the bearing sleeve is connected with a fixed shaft, and the external fixed connection is with a large gear; the large gear corresponds to the output The device is connected; the two ends of the fixed shaft protrude from the bearing sleeves, correspondingly socketed with the shaft sleeves on the frame; the outer side of the bearing sleeves is sequentially provided with a circular first mounting plate and a second mounting plate from top to bottom; the Six sets of evenly distributed fixture frames are axially connected to the first mounting plate.

Further, the clamp frame includes: a beam with a bearing at one end, a universal bearing, a clamp, a fixing rod, a roller, and a limit plate; one end of the beam with a bearing is correspondingly connected to the first mounting plate, and the other end is fixedly connected There is a top end of the fixed rod; the bottom end of the fixed rod is installed and fixed with rollers; the middle part of the crossbeam is installed and fixed with a universal bearing on the side; the upper surface of the crossbeam is installed and fixed directly above the universal bearing; A through hole is opened in the center of the limiting plate; a fixed shaft is arranged in the center of the outer bottom of the fixture, correspondingly passing through the through hole and connecting with the universal bearing.

Further, the diameter of the through hole is larger than the diameter of the fixed shaft; the distance between the upper surface of the limiting plate and the bottom surface of the clamp is 8-15mm.

Further, six support rods extending outward along the diameter direction are installed and fixed on the second mounting plate, which are correspondingly directly below the crossbeam; the outer ends of the support rods are vertically screwed with limit screws for abutting against the crossbeam.

Further, the pushing mechanism includes: a mounting frame, a cylinder, a push plate, a guide column, and a guide sleeve; the mounting frame is fixedly connected to the frame; a cylinder is vertically installed in the middle of the mounting frame; A guide sleeve is installed and fixed on both sides of the cylinder; a guide column is sleeved in the guide sleeve; the top of the guide column is fixedly connected with the push plate; the push plate is directly above the cylinder

Further, the grinding device includes: an adjustable sliding seat and a grinding machine; the base of the adjustable sliding seat is vertically installed on the frame; a grinding machine is installed and fixed on the sliding table of the adjustable sliding seat.

(3) Beneficial effects

The present invention has the following beneficial effects:

A crystal flat grinder of the present invention is provided with six sets of fixture frames and five sets of grinding devices, one set of clamp frames is used for loading and unloading, and the other five sets of corresponding grinding devices are simultaneously polished, and the five sets of grinding devices can be installed arbitrarily There are three grinding discs for rough grinding, fine grinding and polishing, which can achieve finer grinding. The push mechanism can replace manual pressing, saving labor costs. Better fit, grinding out a flat surface, and at the same time avoiding the direct hard contact between the crystal blank and the grinding disc, which will cause material collapse and waste.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the rotary fixture table in the present invention.

Fig. 3 is a disassembled structure diagram at A in Fig. 2 .

Fig. 4 is a structural schematic diagram of the pushing mechanism in the present invention.

1-frame; 2-rotary fixture table; 3-grinding device; 4-power output device; Big gear; 24-fixture frame; 25-first mounting plate; 26-second mounting plate; 31-adjustable sliding seat; 32-grinding machine; 51-installation frame; 52-cylinder; 53-push plate; 54- Guide column; 55-guide sleeve; 241-beam; 242-universal bearing; 243-fixture; 244-fixed rod; 245-roller; 246-limit plate; Shaft; 2461-through hole.

Detailed ways

As shown in Figures 1-4, a flat crystal grinding machine includes: a frame 1, a rotary fixture table 2, and a polishing device 3; the frame 1 is fixedly connected by five feet 11 and a plurality of cross bars ; The tops of the five feet 11 are respectively installed and fixed with a set of grinding device 3; the inner center of the frame 1 is provided with two shaft sleeves 12 at the vertical bottom; type fixture table 2; the inner bottom of the frame 1 is also fixed with a power output device 4 composed of a servo motor and a reducer; the power output device 4 is connected to the rotary fixture table 2; the bottom of the frame 1 corresponds to A push mechanism 5 is fixedly installed directly below every set of grinding device 3 .

1 and 2, the rotary fixture table 2 includes: a bearing sleeve 21, a fixed shaft 22, a large gear 2, and six sets of clamp frames 24; A large gear 23 is fixedly connected; the large gear 23 is correspondingly connected with the output device 4; the two ends of the fixed shaft 22 protrude from the bearing sleeve 21, which is correspondingly socketed with the shaft sleeve 12 on the frame 1; the bearing sleeve 21 A circular first mounting plate 25 and a second mounting plate 26 are sequentially arranged on the outer side from top to bottom; six groups of evenly distributed fixture frames 24 are axially connected to the first mounting plate 25 .

With reference to Fig. 2, shown in Fig. 3, described fixture frame 24 comprises: the crossbeam 241 of one end band bearing, universal bearing 242, fixture 243, fixed rod 244, roller 245, limit plate 246; Described crossbeam 241 band bearing One end is correspondingly connected to the first mounting plate 25, and the other end is fixedly connected to the top of the fixed rod 244; the bottom end of the fixed rod 244 is fixed with a roller 245; The upper surface of the crossbeam 241 is directly above the corresponding universal bearing 242 to install and fix the limiting plate 246; the center of the limiting plate 246 is provided with a through hole 2461; the center of the outer bottom of the clamp 243 is provided with a rotating shaft 2431, corresponding to the Connect with the universal bearing 242 through the through hole 2461; wherein, the diameter of the through hole 2461 is larger than the diameter of the rotating shaft 2431; the distance between the upper surface of the limiting plate (246) and the bottom surface of the clamp 243 is 8-15mm.

2, the second mounting plate 26 is installed and fixed with six support rods 261 extending outwards along the diameter direction, which are correspondingly directly below the beam 241; the outer ends of the support rods 261 are vertically screwed with Lean on the limit screw 262 of the beam 241.

Referring to Fig. 1, Fig. 2 and Fig. 4, the pushing mechanism 5 includes: a mounting frame 51, a cylinder 52, a push plate 53, a guide post 54, and a guide sleeve 55; the mounting frame 51 is fixedly connected to the frame 1 The middle part of the mounting frame 51 is vertically equipped with a cylinder 52; a guide sleeve 55 is installed and fixed on both sides of the cylinder 52 on the mounting frame 51; a guide column 54 is sleeved in the guide sleeve 55; The top end of the column 54 is fixedly connected with the push plate 53 ; the push plate 53 is directly above the cylinder 52 .

Referring to Figure 1, the grinding device 3 includes: an adjustable slide 31 and a grinder 32; the base of the adjustable slide 31 is vertically installed on the frame 1; the slide table of the adjustable slide 31 Grinding machine 32 is fixedly installed on it.

A crystal flat grinder of the present invention is provided with six sets of fixture frames and five sets of grinding devices, one set of clamp frames is used for loading and unloading, and the other five sets of corresponding grinding devices are simultaneously polished, and the five sets of grinding devices can be installed arbitrarily There are three grinding discs for rough grinding, fine grinding and polishing, which can achieve finer grinding. The push mechanism can replace manual pressing, saving labor costs. Better fit, grinding out a flat surface, and at the same time avoiding the direct hard contact between the crystal blank and the grinding disc, which will cause material collapse and waste.

It should be understood that the exemplary embodiments described herein are illustrative and not restrictive; while embodiments of the invention have been described in conjunction with the accompanying drawings, those of ordinary skill in the art will appreciate that, without departing from what is described in the appended claims Various changes in form and details may be made without departing from the spirit and scope of the present invention.

Claims (7)

1. a kind of crystal flat-grinding machine, including：Rack（1）, rotary jig platform（2）, grinding device（3）；It is characterized in that：It is described Rack（1）It is kept a foothold by five（11）It is formed by fixedly connecting with several cross bars；Described five are kept a foothold（11）Top fixation is respectively installed There is a set of grinding device（3）；The rack（1）The axle sleeve there are two vertical base is set inside center（12）；The rack（1） Inside pass through axle sleeve（12）It is connected with rotary jig platform（2）；The rack（1）Interior bottom be also mounted with by servo motor and The power output device of retarder composition（4）；The power output device（4）With rotary jig platform（2）Connection；The rack （1）Bottom, which corresponds to, often covers grinding device（3）Underface be respectively mounted that fixed there are one top-pushing mechanisms（5）.

2. a kind of crystal flat-grinding machine according to claim 1, it is characterised in that：The rotary jig platform（2）Including：Axis Bearing sleeve（21）, fixing axle（22）, gear wheel（23）, six groups of fixture stands（24）；The bearing holder (housing, cover)（21）Inside is connected with fixing axle （22）, external stability is connected with gear wheel（23）；The gear wheel（23）Corresponding and output device（4）Connection；The fixing axle （22）Bearing holder (housing, cover) is stretched out at both ends（21）, corresponding and rack（1）On axle sleeve（12）It is fixed；The bearing holder (housing, cover)（21）Outside is from upper past Under successively be equipped with circular first mounting plate（25）With the second mounting plate（26）；First mounting plate（25）On be connected with six groups The fixture stand being evenly distributed（24）.

3. a kind of crystal flat-grinding machine according to claim 2, it is characterised in that：The fixture stand（24）Including：One end band The crossbeam of bearing（241）, universal bearing（242）, fixture（243）, fixed link（244）, idler wheel（245）, limiting plate（246）；Institute State crossbeam（241）One end with bearing corresponds to and the first mounting plate（25）Axis connects, and the other end is fixedly connected with fixed link（244）'s Top；The fixed link（244）Bottom end be mounted with idler wheel（245）；The crossbeam（241）Middle part seating side installation is solid Surely there is universal bearing（242）；The crossbeam（241）Upper surface corresponds to universal bearing（242）Surface be mounted with limit Plate（246）；The limiting plate（246）Center offers through-hole（2461）；The fixture（243）Shaft is equipped at outer bottom center （2431）, corresponding across through-hole（2461）With universal bearing（242）Axis connects.

4. a kind of crystal flat-grinding machine according to claim 3, it is characterised in that：The through-hole（2461）Diameter be more than turn Axis（2431）Diameter；The limiting plate（246）Upper surface apart from fixture（243）Bottom surface distance be 8-15mm.

5. a kind of crystal flat-grinding machine according to claim 2 or 3, it is characterised in that：Second mounting plate（26）Upper peace Dress is fixed with the supporting rod that the six roots of sensation diametrically extends outward（261）, corresponding to be in crossbeam（241）Underface；The branch Strut（261）Outer end be vertically bolted with for abutting against crossbeam（241）Limit screw（262）.

6. a kind of crystal flat-grinding machine according to claim 1, it is characterised in that：The top-pushing mechanism（5）Including：Mounting bracket （51）, cylinder（52）, push plate（53）, guide post（54）, guide sleeve（55）；The mounting bracket（51）With rack（1）It is fixedly connected； The mounting bracket（51）Middle part be vertically installed with cylinder（52）；The mounting bracket（51）On in cylinder（52）Respectively installation is solid for both sides It is fixed that there are one guide sleeves（55）；The guide sleeve（55）Inside it is socketed with guide post（54）；The guide post（54）Top with push away Plate（53）It is fixedly connected；The push plate（53）In cylinder（52）Surface.

7. a kind of crystal flat-grinding machine according to claim 1, it is characterised in that：The grinding device（3）Including：It is adjustable Slide（31）, sander（32）；The adjustable slide（31）Pedestal be installed vertically on rack（1）On；The adjustable cunning Seat（31）Slide unit on be mounted with sander（32）.