CN106826441B

CN106826441B - Joint line grinding system

Info

Publication number: CN106826441B
Application number: CN201510890148.1A
Authority: CN
Inventors: 雷越森; 李宗璟; 董俊峰; 党辉; 钟辉贤; 高云峰
Original assignee: Han s Laser Technology Industry Group Co Ltd
Current assignee: Han s Laser Technology Industry Group Co Ltd
Priority date: 2015-12-07
Filing date: 2015-12-07
Publication date: 2020-05-05
Anticipated expiration: 2035-12-07
Also published as: CN106826441A

Abstract

The invention discloses a joint line grinding system, in particular to a double-station grinding system capable of automatically removing a joint line, which is used for grinding the joint line of products such as plastic parts, hardware parts and the like and comprises a host machine component, an upper cover component and a human-computer interface. The host computer subassembly includes product rotation device, revolving stage, eccentric vibration square sand machine, Y axle servo module, X axle servo module, Z axle servo module. The product is installed on product rotation device, and product rotation device sets up on the revolving stage, and the revolving stage realizes the product and trades in turn between reloading position and grinding position, and product rotation device drive product rotates. The eccentric vibration square sand machine is driven by the Y-axis servo module, the X-axis servo module and the Z-axis servo module to perform three-dimensional translational motion, and the product joint line is subjected to copying grinding at the grinding position of the machine table so as to remove the joint line. The mould clamping line grinding system is high in automation degree, labor can be effectively saved, production efficiency is improved, and product quality is guaranteed.

Description

Joint line grinding system

Technical Field

The invention relates to a joint line grinding system, in particular to a double-station grinding system capable of automatically removing a joint line, which is used for grinding the joint line of products such as plastic parts, hardware parts and the like.

Background

At present, the mold clamping line of products such as plastic parts, hardware parts and the like is still polished manually or semi-automatically. Such treatments tend to be inefficient and uneven in quality. The published Chinese patent application, mobile phone shell joint line pneumatic sander (application number: 201320730444.1), discloses a pneumatic sander which can be used for sanding a mobile phone shell joint line, and comprises quick-change sponge sand paper, a pneumatic vibration device, a fixing bracket, a fixing base and a pneumatic quick-change plug. The fixing support is in threaded connection with the fixing base, the pneumatic vibration device is mechanically clamped on the fixing support, the quick-change sponge sand is adhered to the upper surface of the pneumatic device, and the pneumatic quick-connection plug is in threaded connection with the pneumatic vibration device. The grinding machine has the main defects that the automation degree is low, the high-quality and high-efficiency batch mould assembling line grinding treatment cannot be realized, the grinding machine is only limited to grinding of mobile phone shells, and the application range cannot be widened.

Disclosure of Invention

In order to realize automatic grinding treatment of mold closing lines of products such as plastic parts, hardware parts and the like and improve the production efficiency and quality of grinding treatment, the invention adopts the following technical scheme:

a joint line grinding system comprises a host machine assembly, an upper cover assembly and a human-computer interface. The host computer subassembly includes swivel work head part, eccentric vibration square sand machine, Y axle servo module, X axle servo module, Z axle mount pad.

The Y-axis servo module is fixed on the base, the X-axis servo module is installed on the Y-axis servo module, the Z-axis mounting seat is installed on the X-axis servo module, and the Z-axis servo module and the Z-axis mounting seat are fixed together;

the rotary worktable component comprises a product rotation device, a rotary table and a motor seat; the motor seat is arranged on the top surface of the base, and a motor for driving the rotating platform to rotate forwards and backwards for 180 degrees is arranged on the motor seat; the product is installed on product rotation device, and product rotation device sets up on the revolving stage, and the revolving stage realizes the product and switches in turn between the grinding position of the position of reloading above the base and base top, and product rotation device drive product rotates.

The eccentric vibration square sand machine is driven by the Y-axis servo module, the X-axis servo module and the Z-axis servo module to perform three-dimensional translation motion, and a grinding position above the base performs profile grinding on a product joint line so as to remove the joint line.

A fixing plate is arranged between the eccentric vibration square sand machine and the Z-axis servo module;

the fixed plate is fixed on the Z-axis servo module and is also provided with at least one guide block, at least one adjusting screw, at least one first square sand fixing block and at least one second square sand fixing block, and the first square sand fixing block and the second square sand fixing block clamp and fix the eccentric vibration square sand machine;

the first square sand fixing block is provided with a threaded hole;

the adjusting screw is clamped in the notch of the adjusting block and inserted into the threaded hole of the first square sand fixing block;

the adjusting screw rod is screwed to enable the first square sand fixing block to move in the guide block, so that the front and rear positions of the eccentric vibration square sand machine are adjusted.

At least one eccentric vibration square sand machine is arranged on the Z-axis servo module.

The eccentric vibration square sand machine can vibrate with high frequency and small amplitude.

At least two product rotation devices are arranged on the rotating platform.

The water receiving tray is arranged around the rotating platform, the end cover is arranged in the middle, and the water tray supporting frame is arranged below the rotating platform.

The water pan supporting frame is used for supporting the water pan.

A rotary worktable drag chain, a static drag chain support and a movable drag chain support for wiring are arranged below the rotary table.

The static drag chain support is fixed on the water tray support frame, and the movable drag chain support is fixed with the rotating platform.

One end of the rotary worktable drag chain is connected with the movable drag chain bracket, and the other end is connected with the static drag chain bracket.

The product rotation device comprises a deep groove ball bearing, a servo motor, a rotating shaft and a product clamp.

The rotating shaft is equipped with deep groove ball bearings.

The product clamp is fixed on the top end of the rotating shaft.

The servo motor drives the rotating shaft to rotate.

The product rotation device also comprises a connecting seat, a bearing seat and a waterproof cover.

One end of the rotating shaft connected with the product clamp is provided with a downward lug-shaped ring groove.

The connecting seat and the bearing seat are sleeved outside the rotating shaft and are fixed on the rotating platform.

The water shield is arranged below the ear-shaped ring groove of the rotating shaft, one end of the water shield is embedded into the ear-shaped ring groove, and the other end of the water shield is sleeved outside the bearing seat, so that water flow can be prevented from permeating into the bearing seat.

Compared with the prior art, the invention mainly has the following beneficial effects:

the rotary worktable component of the joint line grinding system can rotate in a positive and negative 180-degree alternating manner, and the two groups of product rotation devices are switched to a grinding position and a material changing position in turn, so that the transposition process is quick and convenient. The invention can also adopt double stations, can realize batch production under the requirement of high yield and improves the production efficiency.

The mold clamping line grinding system is high in automation degree, and three-dimensional translational motion of the eccentric vibration square sand machine is achieved through the Z-axis servo module, the X-axis servo module and the Y-axis servo module. So can let the joint line on the product obtain thorough grinding, the sponge sand on the eccentric vibration square sand machine obtains abundant utilization, can effectively use manpower sparingly, practices thrift the cost, guarantees the quality.

Drawings

FIG. 1 is an overall view of the inventive parting line grinding system.

FIG. 2 is an overall view of the components of the master of the compound die line grinding system of the present invention.

FIG. 3 is a structural view of a Z-axis polishing member of the land line grinding system of the present invention.

FIG. 4 is an enlarged view of the eccentric vibratory sander of the parting line grinding system of the present invention and its surroundings.

FIG. 5 is a structural view of a rotating table member of the parting line grinding system of the present invention.

Fig. 6 is a structural view of a product rotation device of the joint line grinding system according to the present invention.

Description of reference numerals: 101-main machine assembly, 110-Z-axis grinding component, 111-fixed plate, 112-first square sand fixed block, 113-second square sand fixed block, 114-eccentric vibration square sand machine, 115-guide block, 116-adjusting block, 117-adjusting screw, 118-Z-axis drag chain, 119-Z-direction servo module, 130-rotating workbench component, 131-product rotation device, 132-deep groove ball bearing, 133-O-shaped sealing ring, 134-coupler, 135-servo motor, 136-connecting seat, 137-bearing seat, 138-waterproof cover, 139-rotating shaft, ear ring groove-1391, 140-product clamp, 141-rotating workbench drag chain, 142-static drag chain support, 143-motor seat, 144-dynamic drag chain support, 145-water disc support, 146-water disc, 147-end cover, 148-rotating seat, 150-base, 160-Y-axis servo module, 170-X-axis servo module, 180-Z-axis mounting seat, 201-upper housing assembly, 301-human-machine interface, 401-product.

Detailed Description

In order to facilitate an understanding of the invention, a full description thereof will be given below with reference to the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Unless defined otherwise, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art.

Referring to fig. 1, a joint line grinding system includes a main machine assembly 101, an upper cover assembly 201, and a human-machine interface 301. The upper cover assembly 201 is installed outside the main unit assembly 101 and mainly plays a role of protection. The human-machine interface 301 is provided on the upper cover assembly 201, and is a display center for control of such a parting line grinding system.

Referring to fig. 2, the mainframe assembly 101 includes a Z-axis polishing part 110, a rotary table part 130, a base 150, a Y-axis servo module 160, an X-axis servo module 170, and a Z-axis mount 180. The Y-axis servo module 160 is fixed on the base 150. The X-axis servo module 170 is mounted on the Y-axis servo module 160 and is movable along the Y-axis. The Z-axis mount 180 is mounted on the X-axis servo module 170 for movement along the X-axis. The Z-axis grinding part 110 is fixed to the Z-axis mount 180 and grinds a parting line of a product. The rotary table member 130 is fixed to the base 150, and alternately switches between a material changing position above the base 150 and a grinding position above the base 150, and allows the product 401 to rotate during grinding.

Referring to fig. 3 and 4, the Z-axis grinding unit 110 mainly includes a fixing plate 111, a first square sand fixing block 112, a second square sand fixing block 113, an eccentric vibration square sand machine 114, a guide block 115, an adjusting block 116, an adjusting screw 117, a Z-axis drag chain 118, and a Z-direction servo module 119. The first square sand fixing block 112, the second square sand fixing block 113, the guide block 115, the adjusting block 116 and the adjusting screw 117 are arranged on the fixing plate 111. The fixed plate 111 is mounted on a Z-axis servo module 119. A portion of the first sanding block 112 may slide within the guide block 115. The first square sand fixing block 112 and the second square sand fixing block 113 clamp and fix an eccentric vibration square sand machine 114. The eccentric vibrating sander 114 is a pneumatic element that when supplied with air, drives the sponge sand thereon to vibrate at a high frequency and a small amplitude, thereby grinding the products in contact therewith. Because this embodiment uses two stations, two eccentric vibrating square sanders 114 are symmetrically arranged on the fixed plate 111. A threaded hole (not shown) is formed in the first sand fixing block 112, the adjusting screw 117 is clamped in the gap of the adjusting block 116, and the threaded end penetrates into the threaded hole of the first sand fixing block 112. By screwing the adjusting screw 117, the first square sand fixing block 112 slides in the guide block 115, so that the front and back positions of the eccentric vibration square sand machine 114 are adjusted, the front end surfaces of the two eccentric vibration square sand machines are in the same plane, and the consistency of grinding of products is ensured. The fixed plate 111 and the eccentric vibratory sander 114 mounted thereon are movable along the Z-axis with the Z-axis servo module 119. One end of the Z-axis drag chain 118 is fixed on the fixing plate 111, and the other end is fixed on the Z-axis servo module 119 for accommodating cables.

Referring to fig. 5, the rotary table part 130 includes a product rotation device 131, a rotary table drag chain 141, a stationary drag chain bracket 142, a motor base 143, a moving drag chain bracket 144, a water tray support 145, a water tray 146, an end cover 147, and a rotary table 148. In the present embodiment, the rotary table 148 is provided with four product rotation devices 131, which are divided into two groups, one group being two. In other embodiments of the present invention, the number of product rotation devices 131 may be changed. The product rotation device 131 is used for fixing the product 401 and driving the product 401 to rotate. The rotating platform 148 has an end cover 147 at the center, a water tray 146 at the periphery, and a motor base 143 and a movable drag chain support 144 at the lower part. The drip tray 146 is used to receive water running down the product 401 as it is ground. A waterproof seal (not shown) is provided in the end cap 147 to prevent water from penetrating into the lower motor through the mounting hole of the turntable 148. The motor base 143 is mounted on the top surface of the base 150, and the motor base 143 is mounted with a motor for driving the rotary table 148 to rotate forward and backward by 180 degrees. One end of the rotary worktable drag chain 141 is connected with a movable drag chain bracket 144, and the other end is connected with a static drag chain bracket 142 fixed on a water tray supporting frame 145. When the rotary table 148 rotates forward and backward by 180 degrees, the two sets of product rotation devices correspondingly rotate by 180 degrees, and are switched to a grinding position above the base 150 and a material changing position above the base 150 in turn. When the product at the grinding position is being ground, the product to be ground can be replaced at the material replacing position.

Referring to fig. 6, the product rotation device 131 is mounted on the rotation table 148 and includes a deep groove ball bearing 132, an O-ring 133, a coupling 134, a servo motor 135, a coupling seat 136, a bearing seat 137, a waterproof cover 138, a rotation shaft 139, and a product clamp 140. The coupling 134 connects the output shaft of the servomotor 135 with the rotary shaft 139. One section of the rotation shaft 139 is below the rotation table 148 and the other section is above the rotation table 148. The section of the rotating shaft 139 below the rotating table 148 is sleeved with the connecting seat 136. The connecting base 136 is cylindrical, one end of which is fitted over the servo motor 135 and fixed thereto, and the other end of which is fixed below the rotary table 148. The section of the rotating shaft 139 above the rotating platform 148 is sleeved with the bearing seat 137, and the top end of the rotating shaft is provided with a downward ear-shaped ring groove 1391. The bearing seat 137 is cylindrical, and has one end fixed above the rotary table 148 and the other end near the downward ear-shaped ring groove 1391 at the top end of the rotary shaft 139, and is provided with the deep groove ball bearing 132 sleeved on the rotary shaft 139. The waterproof cover 138 is arranged below the ear-shaped ring groove 1391 at the top end of the rotating shaft 139, one end of the waterproof cover is embedded into the ear-shaped ring groove 1391, and the other end of the waterproof cover covers the tail end of the bearing seat 137, so that the waterproof cover mainly prevents water from seeping into the bearing seat 137. A product holder 140 is mounted on the top end of the rotary shaft 139 for holding the product 401. The joint surface of the rotary table 148 and the bearing seat 137 is provided with an O-ring 133, which can prevent water from infiltrating into the connecting seat 136 below the rotary table 148 and affecting the coupling 134 and the servo motor 135.

The automatic working process of the joint line grinding system comprises the following steps:

step S1: manually placing a product to be ground at the material changing position;

step S2: the motor drives the rotating table 148 to rotate forwards or backwards for 180 degrees, so that the product rotation device 131 of the material changing position and the grinding position is exchanged;

step S3: the X-axis servo module 170 and the Y-axis servo module 160 drive the Z-axis grinding part 110 to drive the eccentric vibration square sand machine 114 to cooperate with the product rotation device 131 to perform profile grinding on a product joint line;

step S4: the Z-axis servo module 119 moves upwards to enable the eccentric vibration square sand machine to be far away from the product;

step S5: the motor drives the rotating table 148 to rotate in the reverse direction or the forward direction for 180 degrees, and the material changing position and the grinding position are switched;

step S6: the product at the stock changing position is taken off and returns to step S1.

The above steps are steps that must be performed by such a parting line grinding system to perform product parting line grinding in the case of normal operation. The above steps will be described in detail below.

Step S4 may be performed in other embodiments where the Z-axis servo module 119 is stationary in the Z-axis, and the Y-axis servo module 160 moves back in the Y-axis to move the eccentric vibration sander 114 on the Z-axis grinding component away from the product. It is important that the eccentric vibratory sander 114 on the Z-axis grinding unit 110 must be in a safe position to prevent collisions to protect the product and the machine itself.

The normal rotation and reverse rotation of the rotary table member 130 are alternately performed, that is, the reverse rotation is performed by 180 degrees at the next time if the previous rotation was performed by 180 degrees.

Eccentric vibratory sander 114 is movable along the Z-axis by a Z-axis servo module 119. The Z-axis servo module 119 is fixed to the Z-axis mount 180 and can be driven by the X-axis servo module 170 to move along the X-axis, so as to drive the eccentric vibration square sander 114 to move along the X-axis. The X-axis servo module 170 is installed above the Y-axis servo module 160, and can move along the Y-axis under the driving of the Y-axis servo module 160, so as to drive the eccentric vibration square sander 114 to move along the Y-axis. The Z-axis polishing assembly 110 is driven into and out of the working position by the Y-axis servo module 160. Since the Z-axis, the X-axis and the Y-axis form a three-dimensional coordinate system, the eccentric oscillating sander 114 can perform three-dimensional motion when the Z-axis servo module 119, the X-axis servo module 170 and the Y-axis servo module 160 all move along their coordinate axes.

During grinding, the Y-axis servo module 160 drives the Z-axis grinding part 110 to enter a working position, and the sponge sand on the eccentric vibration square sand machine 114 vibrates in a high frequency and small amplitude mode to grind a joint line of a product 401. Meanwhile, the Z-axis servo module 119 drives the eccentric vibration square sander 114 to move along the Z-axis, the X-axis servo module 170 drives the eccentric vibration square sander 114 to move along the X-axis, and the Y-axis servo module 160 drives the eccentric vibration square sander 114 to move along the Y-axis. Can let eccentric vibration side's sand machine 114 coordinate the automatic three-dimensional motion that carries on of shape of product 401 like this, after certain section consume of sponge sand on eccentric vibration side's sand machine 114, cut the position through the sponge sand that Z axle up-and-down motion changes to each position of make full use of sponge sand can also eliminate the influence that the joint line place height difference of different kind of products brought.

The embodiment mainly has the following beneficial effects:

1. the rotary worktable component 130 of the joint line grinding system can rotate in a positive and negative 180-degree alternating manner, and two groups of product rotation devices are switched to a grinding position and a material changing position in turn, so that the material changing process is quick and convenient. The embodiment also adopts double stations, batch production can be realized under the requirement of high yield, and the production efficiency is improved.

2. The joint line grinding system has high automation degree, and realizes three-dimensional motion of the eccentric vibration square sand machine 114 through the Z-axis servo module 119, the X-axis servo module 170 and the Y-axis servo module 160. Therefore, the joint line on the product can be thoroughly ground, the sponge sand on the eccentric vibration square sand machine 114 is fully utilized, labor can be effectively saved, cost is saved, and quality is guaranteed.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.

Claims

1. A joint line grinding system comprises a host machine component (101), an upper cover component (201) and a human-machine interface (301), and is characterized in that: the main machine component (101) comprises a rotary worktable part (130), a base (150), an eccentric vibration square sand machine (114), a Y-axis servo module (160), an X-axis servo module (170), a Z-axis servo module (119) and a Z-axis mounting seat (180);

the Y-axis servo module (160) is fixed on the base (150), the X-axis servo module (170) is installed on the Y-axis servo module (160), the Z-axis mounting seat (180) is installed on the X-axis servo module (170), and the Z-axis servo module (119) and the Z-axis mounting seat (180) are fixed together;

the rotary table component (130) comprises a product rotation device (131), a rotary table (148) and a motor seat (143); the motor seat (143) is arranged on the top surface of the base (150), and the motor seat (143) is provided with a motor which drives the rotating platform (148) to rotate forward and backward by 180 degrees; the product is arranged on the product rotation device (131), the product rotation device (131) is arranged on the rotating table (148), the rotating table (148) realizes the alternate switching of the product between the material changing position above the base (150) and the grinding position above the base (150), and the product rotation device (131) drives the product to rotate;

the eccentric vibration square sand machine (114) is driven by a Y-axis servo module (160), an X-axis servo module (170) and a Z-axis servo module (119) to perform three-dimensional translation motion so as to perform profile grinding on a product joint line at a grinding position above the base (150) to remove the joint line;

a fixing plate (111) is arranged between the eccentric vibration square sand machine (114) and the Z-axis servo module (119);

the fixed plate (111) is fixed on the Z-axis servo module (119), the fixed plate (111) is further provided with at least one guide block (115), at least one adjusting block (116), at least one adjusting screw (117), at least one first square sand fixed block (112) and at least one second square sand fixed block (113), and the first square sand fixed block (112) and the second square sand fixed block (113) clamp and fix the eccentric vibration square sand machine (114);

the first square sand fixing block (112) is provided with a threaded hole;

the adjusting screw (117) is clamped in the notch of the adjusting block (116) and inserted into the threaded hole of the first square sand fixing block (112);

the first square sand fixing block (112) can move in the guide block (115) by screwing the adjusting screw (117), so that the front and back positions of the eccentric vibration square sand machine (114) are adjusted.

2. The mold clamping line grinding system of claim 1, wherein: at least one eccentric vibrating sander (114) is mounted on the Z-axis servo module (119).

3. The mold clamping line grinding system of claim 2, wherein: the eccentric vibratory sander (114) is vibratable with a high frequency and a small amplitude.

4. The mold clamping line grinding system of claim 1, wherein: the rotating platform (148) is provided with at least two product rotation devices (131);

a water receiving tray (146) is arranged around the rotating platform (148), an end cover (147) is arranged in the middle, and a water tray supporting frame (145) is arranged below the rotating platform;

the water pan supporting frame (145) is used for supporting the water receiving pan (146).

5. The mold clamping line grinding system of claim 4, wherein: a rotary worktable drag chain (141), a static drag chain bracket (142) and a dynamic drag chain bracket (144) for wiring are arranged below the rotary table (148);

the static drag chain support (142) is fixed on the water tray support frame (145), and the dynamic drag chain support (144) is fixed with the rotating platform (148);

one end of the rotary worktable drag chain (141) is connected with a movable drag chain bracket (144), and the other end is connected with a static drag chain bracket (142).

6. The mold clamping line grinding system of claim 1, wherein: the product rotation device (131) comprises a deep groove ball bearing (132), a servo motor (135), a rotating shaft (139) and a product clamp (140);

the rotating shaft (139) is equipped with a deep groove ball bearing (132);

the product clamp (140) is fixed at the top end of the rotating shaft (139);

the servo motor (135) drives the rotating shaft (139) to rotate.

7. The mold clamping line grinding system of claim 6, wherein: the product rotation device (131) further comprises a connecting seat (136), a bearing seat (137) and a waterproof cover (138);

one end of the rotating shaft (139) connected with the product clamp (140) is provided with a downward ear-shaped ring groove (1391);

the connecting seat (136) and the bearing seat (137) are sleeved outside the rotating shaft (139) and are fixed on the rotating platform (148);

the waterproof cover (138) is arranged below the ear-shaped ring groove (1391) of the rotating shaft (139), one end of the waterproof cover is embedded into the ear-shaped ring groove (1391), and the other end of the waterproof cover is sleeved outside the bearing seat (137), so that water flow can be prevented from permeating into the bearing seat (137).