CN214445236U - Lens grinder that variable speed is stable - Google Patents

Abstract

A lens grinding device with stable speed change comprises a base mechanism, a main shaft box mechanism arranged on the base mechanism, a main shaft assembly arranged on the main shaft box mechanism and capable of moving up and down in a reciprocating manner, an elastic mechanism sleeved on the main shaft assembly and a power mechanism arranged on the main shaft box mechanism and used for providing power for the main shaft assembly, wherein the main shaft assembly moves up and down in a reciprocating manner to drive a first power wheel assembly to move up and down in a reciprocating manner so that a transmission belt shifts and changes speed on the first power wheel assembly, the elastic mechanism is connected with the first power wheel assembly and is arranged on the first power wheel assembly on the main shaft assembly, so that the elastic mechanism can play a role of damping and energy absorbing when the transmission belt shifts and changes speed on the first power wheel assembly, on one hand, the normal operation of the main shaft assembly and the first power wheel assembly is protected, on the other hand, the abrasion caused by the shifting and speed change between the main shaft assembly and the first power wheel assembly is reduced, the effect of killing two birds with one stone is achieved.

Description

Lens grinder that variable speed is stable

Technical Field

The utility model relates to a grinder especially indicates a lens grinder that variable speed is stable.

Background

The optical glass is prepared by mixing high-purity oxides of silicon, boron, sodium, potassium, zinc, lead, magnesium, calcium, barium and the like according to a specific formula, melting at high temperature in a platinum crucible, uniformly stirring by using ultrasonic waves, and removing bubbles; and then slowly cooling for a long time to prevent the glass block from generating internal stress. The cooled glass block must be measured by optical instruments to verify purity, transparency, uniformity, refractive index and dispersion are within specification. And heating and forging the qualified glass block to form an optical lens blank.

Chinese patent application No. 200710000840.8 (publication No. CN 100528481C) discloses a lens polishing apparatus capable of adjusting according to the center and arc diameter of a lens, which has a vertical base plate connected with a polishing mechanism, and the polishing mechanism can adjust the tilt angle from the vertical base plate. The grinding mechanism is driven to swing by the driving mechanism. The displacement mechanism is provided with a sliding block capable of longitudinally displacing for bearing the upright base plate, and the grinding device can correspondingly process the spherical center and the arc diameter of the lens to correct the swing amplitude and the central point of the swing amplitude before grinding work by the structure so as to position the optimal grinding position.

In the optical lens processing, the processing procedures of the crystal are crystal growth, optical axis confirmation, cutting, fine grinding, polishing, coating and detection, and the grinding device of the patent is processing equipment used in the fine grinding procedure.

SUMMERY OF THE UTILITY MODEL

The utility model provides a lens grinder that variable speed is stable, its main aim at overcome and lack the defect of a shock-absorbing device at the in-process of shifting on the current belt pulley.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a lens grinding device with stable speed change comprises a base mechanism, a main shaft box mechanism arranged on the base mechanism, a main shaft assembly arranged on the main shaft box mechanism and capable of moving up and down in a reciprocating manner, an elastic mechanism sleeved on the main shaft assembly and a power mechanism arranged on the main shaft box mechanism and used for providing power for the main shaft assembly, the power mechanism comprises a first power wheel component sleeved on the step above the main shaft component, a second power wheel component arranged on one side of the first power wheel component and a transmission belt respectively sleeved on the first power wheel component and the second power wheel component and used for transmitting kinetic energy, the main shaft component moves up and down in a reciprocating mode to drive the first power wheel component to move up and down in a reciprocating mode, so that the transmission belt shifts gears and changes speed on the first power wheel component, and the elastic mechanism is connected with the first power wheel component.

Furthermore, the first power wheel assembly comprises a stepped first power wheel main body, an installation cavity extending from the upper bottom surface of the first power wheel main body to the lower bottom surface of the first power wheel main body, a boss embedded in the installation cavity and an elastic mechanism arranged on the top of the installation cavity in a covering mode, wherein the elastic mechanism is installed on the boss in an extending mode from the top of the installation cavity.

Furthermore, the elastic mechanism comprises a long elastic piece embedded on the convex seat, a locking piece arranged above the elastic piece, and a bearing arranged between the first power wheel main body and the elastic piece.

Furthermore, the elastic part comprises a spring nut and a spring arranged at the bottom of the spring nut, the bearing is clamped between the spring nut and the first power wheel main body, and the spring is sleeved on the main shaft assembly.

Further, the spring is a compression spring.

Further, the bearing is a thrust ball bearing.

Furthermore, the spindle box mechanism comprises a feeding box installed on the base mechanism, a convex block arranged on the front portion of the feeding box, a first installation channel vertically extending from the upper bottom surface of the convex block to the bottom of the feeding box, and a cover body covering the top of the convex block, the spindle assembly is installed in the first installation channel, and the convex base is arranged on the cover body.

Compared with the prior art, the utility model discloses the beneficial effect who produces lies in:

1. the utility model has the advantages of simple structure and strong practicability, install elastic mechanism through the top that sets up the first power wheel subassembly in the main shaft subassembly top to elastic mechanism can play the effect of shock attenuation energy-absorbing when drive belt shifts the speed change on first power wheel subassembly, protects the normal operating of main shaft subassembly and first power wheel subassembly on the one hand, and on the other hand reduces because of the wearing and tearing that the variable speed of shifting produced between main shaft subassembly and the first power wheel subassembly, plays the effect of killing two birds with one stone.

2. The utility model discloses in, reduce the wearing and tearing of first power wheel main part through setting up elastic mechanism and boss.

3. The utility model discloses in, through setting up thrust ball bearing, thrust ball bearing can bear thrust load when adopting high-speed operation.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a right side view of fig. 1.

Fig. 3 is an exploded view of the spindle assembly.

Fig. 4 is an exploded view of the present invention, wherein the spindle assembly is not shown.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

Referring to fig. 1, 2, 3 and 4, the lens grinding device with stable speed change comprises a base mechanism 1, a headstock mechanism 2 mounted on the base mechanism 1, a spindle assembly 3 mounted on the headstock mechanism 2 and capable of reciprocating up and down, an elastic mechanism 4 sleeved on the spindle assembly 3, and a power mechanism 3 mounted on the headstock mechanism 2 and providing power for the spindle assembly 3.

Referring to fig. 1 and 2, the base mechanism 1 includes a base 11 supported on a floor, a table or other surface, a vertical column 12 vertically disposed on the base 11 and extending upward, a worktable 22 mounted on the vertical column 12 and capable of moving up and down, and a fixing clip 13 disposed at an end of the worktable 22 facing the vertical column 12, wherein the worktable 22 and the vertical column 12 are fixedly connected by the fixing clip 13.

Referring to fig. 4, the power mechanism 3 includes a first power wheel assembly, a second power wheel assembly and a transmission belt 42, wherein the first power wheel assembly is sleeved on the main shaft assembly 3 and is stepped, the second power wheel assembly is arranged on one side of the first power wheel assembly, and the transmission belt is respectively sleeved on the first power wheel assembly and the second power wheel assembly and is used for transmitting kinetic energy.

Referring to fig. 3, the main shaft assembly 3 reciprocates up and down to drive the first power wheel assembly to reciprocate up and down, so that the transmission belt 42 shifts gears on the first power wheel assembly, and the elastic mechanism 4 is connected with the first power wheel assembly.

Referring to fig. 3 and 4, in this embodiment, one end of the elastic mechanism 4 is connected to the first power wheel assembly, and the top of the elastic mechanism 4 is fixed on the top of the main shaft assembly 3.

Referring to fig. 3 and 4, the first power wheel assembly includes a stepped first power wheel main body 14, a mounting cavity 44 extending from the upper bottom surface of the first power wheel main body 14 to the lower bottom surface of the first power wheel main body 14, a boss 15 embedded in the mounting cavity 44, and an elastic mechanism 4 covering the top of the mounting cavity 44, wherein the elastic mechanism 4 is mounted on the boss 15 by extending from the top of the mounting cavity 44.

Referring to fig. 3, the elastic mechanism 4 includes an elongated elastic member 18 fitted to the boss 15, a locking member 19 provided above the elastic member 18, and a bearing 16 interposed between the first power wheel main body 14 and the elastic member 18.

Referring to fig. 3, the elastic member 18 includes a spring nut 181 and a spring 182 mounted on a bottom of the spring nut 181, the bearing 16 is interposed between the spring nut 181 and the first power wheel main body 14, and the spring is sleeved on the spindle assembly 3.

Referring to fig. 3, the spring 182 is sleeved on the main shaft, the spring 182 is a compression spring, the bearing 16 is a thrust ball bearing, the locking member 19 is a bearing nut 19, and the convex seat 15 is a seat body with a convex shape.

Referring to fig. 3, the bearing nut 19, the spring nut 181, the thrust ball bearing 16, the first power wheel of the spring, and the boss 15 are sequentially installed on the main shaft.

Referring to fig. 3, by providing the thrust ball bearing 16, the thrust ball bearing can withstand thrust loads when operating at high speeds.

Referring to fig. 3, the compression spring is a helical spring bearing a compression force, which is made of a material having a cross section of mostly circular, and also wound with rectangular and multi-strand steel entanglements, the spring being generally of equal pitch, the compression spring having the shape: the compression spring is cylindrical, conical, convex and concave, and a small number of non-circular shapes, and the like, a certain gap is reserved between the rings of the compression spring, and the compression spring contracts and deforms when subjected to external load, so that deformation energy is stored.

Referring to fig. 3 and 4, the headstock mechanism 2 includes a feed box 31, a spindle assembly 3 having a chuck 21 at the bottom, a first mounting passage 32 vertically provided in the front portion of the feed box 31 for mounting the spindle assembly 3, a feed rod adjusting assembly 4 provided on one side of the first mounting passage 32 for driving the spindle assembly 3 to reciprocate up and down, the power control switch board is arranged on one side surface of the feeding box 31, the second mounting channel 33 is arranged in the rear part of the feeding box 31 and used for mounting the upright post 12, the third mounting channel 34 is arranged on one side of the first mounting channel 32 and communicated with the first mounting channel 32, the projection 36 is arranged on the front part of the feeding box 31, the cover body 37 is covered on the top of the projection 36, the feeding rod adjusting assembly 4 is arranged on the third mounting channel 34, and the third mounting channel 34 extends to the other side surface of the feeding box 31 from one side surface of the feeding box 31. The first mounting channel 32 extends vertically from the upper bottom surface of the projection 36 to the bottom of the feeding box 31, and the boss 15 is provided on the cover 37. The chuck 21 is used for mounting a drill.

The abrasion of the first power wheel main body is reduced by arranging the elastic mechanism and the convex seat.

Referring to fig. 4, the feed bar 38 of the feed bar adjusting assembly 4 is engaged with the rack sleeve 25 with the rack bar by a gear shaft 35 installed in the third installation passage 34, one end of the gear shaft 35 is provided with the feed bar 38, and the other end of the gear shaft 35 is provided with a nut 40 for locking. The feed bar 38 allows the user to move up and down by rotating the adjustment spindle 20 of the feed bar 38 up and down.

Referring to fig. 3, the spindle assembly 3 includes a spindle 20 vertically installed in the first installation channel 32, a bearing 22 and a bearing 58 disposed in the rack sleeve 25 for supporting the spindle 20 to rotate, a stop ring 25 disposed above the rack sleeve 25, a bearing 27 disposed at a lower portion of the spline housing 28, a bearing 29 disposed at an upper portion of the bearing, a bearing seat ring 26 for supporting the bearing 27, and a bearing nut 19, wherein a top portion of the spindle 20 is installed in the installation cavity 44 to rotate to securely connect the spindle 20 and the first power wheel body 14 through the bearing nut 19, and the bearing may be a 6201LLB deep groove ball bearing.

Referring to fig. 4, the power mechanism 7 includes a transmission housing 47 disposed on the feeding box 31, a third cavity disposed in the transmission housing 47, a first power wheel assembly disposed on the feeding box 31, a second power wheel assembly for driving the first power wheel assembly, a motor 41 disposed on one side of the feeding box 31 for driving the second power wheel assembly to operate, and a transmission belt 42 for transmitting kinetic energy between the first power wheel assembly and the second power wheel assembly, so that the kinetic energy of the second power wheel assembly is transmitted to the first power wheel assembly through the transmission belt 42, and the second power wheel assembly and the first power wheel assembly are both installed in the third cavity disposed in the transmission housing 47.

Referring to fig. 4, the first power wheel assembly includes a first power wheel main body 14, an installation cavity 44 formed in the top of the first power wheel main body 14 and extending to the bottom of the first power wheel main body 14, and a plurality of second installation grooves formed in the outer periphery of the first power wheel main body 14 at intervals and used for being sleeved with the transmission belt 42, the cross section of the first power wheel main body 14 is in a step shape, the diameters of the plurality of annular second installation grooves are gradually increased in sequence, the second installation grooves are arranged along the outer periphery of the first power wheel main body 14, the upper portion of the spindle 20 is installed in the installation cavity 44, and the spindle is driven by the rotation of the first power wheel main body 14 to rotate.

Referring to fig. 4, the second power wheel assembly includes a second power wheel main body 43, a third assembly groove and a plurality of first assembly grooves are formed in the top of the second power wheel main body 43 and extend to the bottom of the second power wheel main body 43, the third assembly groove and the plurality of first assembly grooves are formed in the outer portion of the second power wheel main body 43 at intervals and used for being sleeved with the annular first mounting groove of the transmission belt 42, the cross section of the second power wheel main body 43 is in a step shape, the diameters of the plurality of annular first mounting grooves are gradually increased in sequence, the first mounting groove is formed along the outer periphery of the second power wheel main body 43, and the third assembly groove is installed on the power output end of the motor 41.

Referring to FIG. 4, the second power wheel body 43 and the first power wheel body 14 are both stepped pulleys, which may be V-drive belts 42.

Referring to fig. 4, the transmission housing 47 includes a housing bottom 45 provided on the top of the feed box 31 and a flip-top cover 46 provided on the housing bottom 45, the housing bottom 45 and the cover 46 enclosing to form a third cavity.

Referring to fig. 4, a first key groove is formed in the spline housing 28, a second key groove matched with the first key groove is formed in the first power wheel main body 14 towards one side of the installation cavity 44, the spline housing 28 is connected with the first power wheel main body 14 through a connecting key, one end of the connecting key is installed on the first key groove, and the other end of the connecting key is installed on the second key groove.

The connecting keys are keys in mechanical transmission and are mainly used for circumferential fixation between a shaft and parts on the shaft to transmit torque, and some keys can also realize axial fixation or axial movement of the parts on the shaft. Such as the coupling of a gear to a shaft in a reducer.

The keys are classified into flat keys, semicircular keys, wedge keys, tangential keys, splines, etc., and the connection keys may use flat keys.

The two sides of the flat key are working faces, and a gap is reserved between the upper surface and the bottom of the hub groove. The centering performance is good, and the assembly and disassembly are convenient. The flat keys include three types, namely a common flat key, a guide flat key and a sliding key.

The spline is formed by uniformly distributing a plurality of key teeth on the circumference of the shaft and the hub hole, and is called spline connection. The spline connection is multi-tooth work, the working surface is a tooth side surface, the bearing capacity is high, the centering performance and the guiding performance are good, the weakening of the strength of a shaft and a hub is small, and the spline connection is suitable for static connection and dynamic connection which have high centering precision requirement, large load and frequent slippage, such as connection of a sliding gear and a shaft in a transmission. The spline coupling can be divided into: rectangular splines, triangular splines, involute splines, and the like.

The utility model has the advantages of simple structure and strong practicability, install elastic mechanism through the top that sets up the first power wheel subassembly in the main shaft subassembly top to elastic mechanism can play the effect of shock attenuation energy-absorbing when drive belt shifts the speed change on first power wheel subassembly, protects the normal operating of main shaft subassembly and first power wheel subassembly on the one hand, and on the other hand reduces because of the wearing and tearing that the variable speed of shifting produced between main shaft subassembly and the first power wheel subassembly, plays the effect of killing two birds with one stone.

The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.

Claims (7)

1. A lens grinder that variable speed is stable which characterized in that: the processing device comprises a base mechanism, a main shaft box mechanism arranged on the base mechanism, a main shaft assembly arranged on the main shaft box mechanism and capable of moving up and down in a reciprocating manner, an elastic mechanism sleeved on the main shaft assembly and a power mechanism arranged on the main shaft box mechanism and used for providing power for the main shaft assembly, the power mechanism comprises a first power wheel component sleeved on the step above the main shaft component, a second power wheel component arranged on one side of the first power wheel component and a transmission belt respectively sleeved on the first power wheel component and the second power wheel component and used for transmitting kinetic energy, the main shaft component moves up and down in a reciprocating mode to drive the first power wheel component to move up and down in a reciprocating mode, so that the transmission belt shifts gears and changes speed on the first power wheel component, and the elastic mechanism is connected with the first power wheel component.

2. A variable speed stabilized lens grinding apparatus as defined in claim 1, wherein: the first power wheel assembly comprises a stepped first power wheel main body, an installation cavity extending to the upper bottom surface of the first power wheel main body and arranged on the lower bottom surface of the first power wheel main body, a boss embedded in the installation cavity and an elastic mechanism arranged on the top of the installation cavity, wherein the elastic mechanism is installed on the boss in a manner that the top of the installation cavity extends.

3. A variable speed stabilized lens grinding apparatus as claimed in claim 2, wherein: the elastic mechanism comprises an elastic piece which is embedded on the boss and is long-strip, a locking piece which is arranged above the elastic piece, and a bearing which is arranged between the first power wheel main body and the elastic piece in a clamping mode.

4. A variable speed stabilized lens grinding apparatus as claimed in claim 3, wherein: the elastic piece comprises a spring nut and a spring arranged at the bottom of the spring nut, the bearing is clamped between the spring nut and the first power wheel main body, and the spring is sleeved on the main shaft assembly.

5. A variable speed stabilized lens grinding apparatus as claimed in claim 4, wherein: the spring is a compression spring.

6. A variable speed stabilized lens grinding apparatus as claimed in claim 3, wherein: the bearing is a thrust ball bearing.

7. A variable speed stabilized lens grinding apparatus as claimed in claim 2, wherein: the spindle box mechanism comprises a feeding box arranged on the base mechanism, a convex block arranged on the front portion of the feeding box, a first installation channel vertically extending from the upper bottom surface of the convex block to the bottom of the feeding box, and a cover body covering the top of the convex block, wherein the spindle assembly is arranged in the first installation channel, and the convex base is arranged on the cover body.

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