CN115503069A

CN115503069A - Table plate processing and splicing process

Info

Publication number: CN115503069A
Application number: CN202211006704.0A
Authority: CN
Inventors: 俞鹏飞; 王肖明; 王科亭; 王巍
Original assignee: UE Furniture Co Ltd
Current assignee: UE Furniture Co Ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2022-12-23
Anticipated expiration: 2042-08-22
Also published as: CN115503069B

Abstract

The invention discloses a table board processing and splicing process, which comprises the steps of prefabricating two table board units; then, drilling holes on the spliced side walls of the single table plate unit in sequence by adopting a hole arranging device; placing and positioning the table unit on a bearing station of the hole arranging device; a positioning pressing beam positioned at the rear upper part of the table plate unit presses downwards to tightly press the table plate unit; synchronously feeding the drill bits arranged along the horizontal direction to process the splicing side walls to form a row of positioning holes; the connecting rod of the three-in-one connecting piece is inserted and fastened in one of the table units in advance; embedding a hard nesting in the table unit, and arranging a fastener of an eccentric wheel structure in the nesting; then, sequentially penetrating positioning pins in the positioning holes; then splicing the two table plate units together, respectively inserting two ends of the positioning pin into the two table plate units, and respectively inserting two ends of the connecting rod into the two table plate units; finally, screwing acts on the fastener, and the fastener tightens the connecting rod to lock the two table units.

Description

Table plate processing and splicing process

Technical Field

The invention relates to the field of plate processing and connecting, in particular to a table board processing and splicing process.

Background

The table is one of the indispensable furniture in the current household life, is divided into a dining table, an office table, a tea table, a desk and the like, and is of a fixed structure as a whole; with the trend of commercialization under power-off, products sold on line need to be sent to customers through logistics, so that for tables needing long-distance transportation, the whole tables occupy a large transportation space, the packaging volume is large, and the tables are not easy to place and inconvenient to transport during transportation; the transportation cost of the product will then increase; the table tool which is convenient to package and transport and reduces the packaging and transporting cost can bring higher benefits for companies and manufacturers. For the table, the part which occupies the most packaging volume is the table plate, and the single table plate is thick and heavy, is not easy to package and transport, and is not beneficial to allocating the occupied space during transportation, so that a plurality of tables on the market can divide the table plate into a plurality of small table plates which are spliced to form the table top, thereby solving the problems; in addition, the splicing structure between the small table boards after the table board is divided can adopt various modes.

The table board splicing structure on the existing market mainly comprises the following components:

1. a plug-in type structure is adopted, one of the two adjacent table boards is provided with a plug pin or a plug tenon, and the other of the two table boards is correspondingly provided with a jack or a mortise; when in connection, the two table plates are spliced and closed, and the structure has the advantages of convenient position finding, rapid connection and capability of eliminating connection traces after connection. A concatenation square table as disclosed in patent No. CN201610213091.6, it includes four table boards that splice mutually, these table boards have two outer edges of mutually perpendicular respectively to and with two interior edges of two other table board identical contacts, be equipped with slot or tongue in these interior edges, these respective bottoms of these table boards are equipped with the table foot respectively. The table leg folding table is simple in structure and convenient to assemble, and when the table leg folding table is used, the table legs are folded by splicing the inserting tongues and the inserting grooves among the table plates and disassembling the table plates after the table legs are used, so that less containing rooms are occupied, and indoor rooms are fully utilized. However, this type of structure also has a significant disadvantage: that is, the connection strength is not enough, the two plates are supported only by the inserting part, if one plate is pressed with force, the plate sinks relative to the other plate under stress, and a height drop is generated between the plate and the other plate, so that uniform stress cannot be ensured, and the connection stability cannot be ensured; and the two tables cannot be locked.

In addition, when the connection is realized by adopting the bolts, rows of hole sites need to be processed on the splicing side walls of each table plate; the existing conventional method is to sequentially process single holes on a table plate by using a common drilling machine so that the holes form row holes; this is undoubtedly inefficient in machining and it is difficult to ensure that the hole sites of these holes are in the same horizontal line. For the table plates for splicing, if the hole positions for connecting the pins are not on the same horizontal line, unevenness between the two spliced table plates can be caused, and the two spliced table plates are easily concentrated on the pins when stressed, so that the stress is not dispersed, and the structure is unstable. Therefore, due to the requirements of the number and the positions of the hole sites, the processing operation is very troublesome through manual work and a common drilling machine, the efficiency is not high, the form and position tolerance of the holes is not well controlled, and the materials are easily wasted.

2. And assembling the two table plates by adopting a common three-in-one connecting piece. A three-in-one connector as disclosed in patent No. cn202021818402. X; the method comprises the following steps: one end of the connecting rod is provided with an external thread and is in threaded connection with one of the wood boards, and the other end of the connecting rod is provided with a locking groove; the nut is pre-embedded in the other wood board, wherein a through groove which is in nested fit with the connecting rod and a threaded hole which is perpendicular to the through groove are formed in the nut; and the locking nut is in threaded fit with the threaded hole and is abutted against the clamping fit with the locking groove. The utility model provides a pair of trinity connecting piece through the nested cooperation between connecting rod and the nut, and the screw-thread fit between lock nut and the nut and support between lock nut and the connecting rod and lean on the joint to improve the locking effect between the three, reduce the piece distance between two adjacent planks, and then improve the fastness and the bearing capacity of connecting between two adjacent planks. The mode that adopts trinity connecting piece to splice two plank together is a comparatively common application structure among the current prior art. However, the three-in-one connecting piece is mainly used for connecting two mutually vertical plate pieces and is used in furniture structures such as cabinets and the like; because the extrusion direction of the power between two mutually perpendicular's the board is unanimous with the connecting rod length direction of trinity connecting piece, so can guarantee stable in structure. If the three-in-one connecting piece is used for two horizontal splicing table plates, the three-in-one connecting piece is used for bearing force; if one of the plates is pressed with force, the plate is stressed to sink relative to the other plate; thereby prying the connecting rod vertically; when the connecting rod is used for a long time, one end of the connecting rod with the threads is easy to loosen, so that the connecting rod is separated; the hidden trouble of unstable connection exists.

In order to solve the above problems, it is necessary to design a process for processing and splicing the table plate, so that the holes on the table plate can be conveniently processed, and the precision of the holes is high; and the structural strength and the flatness of the spliced two table plates can be ensured.

Disclosure of Invention

The invention overcomes the defects in the prior art, and provides a table board processing and splicing process, wherein a hole arranging device is adopted to process positioning holes on a table board unit, and then positioning pins and three-in-one connection are utilized to splice the table board; the drilling processing is convenient, the structure between the two table plate units is stable after the splicing, and the flatness is high.

The technical scheme of the invention is realized as follows:

a table board processing and splicing process comprises the following steps:

the method comprises the following steps that firstly, at least two table plate units used for splicing are prefabricated, and the table plate units can be spliced to form an integral horizontal table top;

step two, drilling holes on the splicing side walls of the single table plate unit in sequence by adopting a hole arranging device; placing and positioning the table unit on a bearing station of the hole arranging device; a positioning pressure plate positioned right above the table plate unit and a positioning pressure beam positioned at the rear upper part of the table plate unit are respectively pressed downwards to tightly press the table plate unit; a plurality of drill bits which are positioned at the rear end of the table unit and are distributed along the horizontal direction are simultaneously fed step by step to process the splicing side wall of the table unit at one time to form a row of positioning holes, and the centers of the positioning holes are positioned on the same straight line;

step three, pre-burying hard annular nesting in the table plate units, and arranging a three-in-one connecting piece between the two table plate units; the connecting rod of the three-in-one connecting piece is inserted into one of the table plate units in advance; arranging the fastener of the eccentric wheel structure of the three-in-one connecting piece in the nesting;

fourthly, sequentially penetrating positioning pins into the positioning holes of one of the table plate units, wherein the positioning pins are in inserted fit with the positioning holes;

splicing the two table plate units together, and respectively inserting two ends of a positioning pin into the two table plate units; simultaneously, two ends of the connecting rod are respectively inserted into the two table plate units;

and step six, screwing the fastener, and tensioning the fastener to be applied to the connecting rod so as to lock the two table plate units.

Preferably, in the third step, an inner hexagonal sunken groove is formed on the upper end surface of the fastener in a machining mode. The traditional fastener adopts a cross-shaped sinking groove, but because the nesting is additionally arranged, the structural strength of the joint is improved; the fastener can bear larger screwing force, so that the fastener is provided with the inner hexagonal sunk groove, and the L-shaped inner hexagonal wrench can be adopted to screw the fastener, so that the operation is more labor-saving and easier.

Preferably, in the second step, a plurality of through holes for penetrating the connecting rods are processed and formed on the splicing side walls of the table unit; the through hole is formed by synchronously processing the drill bit when the positioning hole is processed, and the centers of the through hole and the positioning hole are also positioned on the same straight line; an embedded groove used for containing a fastener is arranged at the position corresponding to the through hole on the end surface of the table plate unit, and the through hole is communicated with the embedded groove; in the third step, the nesting is embedded and installed in the caulking groove, and the height of the nesting is equal to the longitudinal depth of the caulking groove. The three-in-one connecting piece is conveniently connected by arranging the through hole and the caulking groove; after the embedded groove is embedded in the embedded sleeve in an embedded mode, the upper end face of the embedded sleeve is flush with the upper end face of the table board unit, and the structure is attractive.

Preferably, the through holes and the positioning holes are arranged in a staggered mode. The table board has even bearing force and is more stable to splice.

Preferably, the nesting is clamped in the caulking groove, and the nesting and the caulking groove are in interference fit. After the embedded sleeve is embedded into the caulking groove, the embedded sleeve is tightly connected into the caulking groove and cannot be separated from the caulking groove.

Preferably, the nesting is provided with a notch for the connecting rod to pass through; and the outer wall of the nesting is uniformly provided with outer convex teeth distributed in a wavy shape, and the inner wall of the nesting is uniformly provided with inner convex teeth distributed in a wavy shape. The outer convex teeth can increase the friction force between the nesting and the caulking groove, so that the two are connected tightly, and the annular lantern ring cannot deflect in the caulking groove; and the contact area between the nesting and the caulking groove is reduced, so that the nesting is easier to be embedded and matched in the caulking groove. And the inner convex teeth can increase the friction force between the nesting and the fastening piece, so that the fastening piece cannot retreat after being screwed in the nesting.

Preferably, in the second step, a supporting platform for supporting the table unit is arranged at the supporting station; the table plate units are horizontally positioned on the supporting platform by the lateral positioning components positioned on two sides of the supporting platform and the front and rear positioning mechanisms positioned at the front end and the rear end of the supporting platform. So that the table unit is relatively fixed with the supporting platform along the front-back direction and the left-right direction.

Preferably, the front and rear positioning mechanism comprises a limiting transverse plate arranged at the rear end of the workbench and a front positioning assembly arranged at the front end of the workbench; the front positioning component comprises a front positioning push plate capable of moving back and forth; the front positioning push plate pushes the desk plate unit backwards to be abutted with the front and back of the limiting transverse plate.

Preferably, the hole arrangement device comprises a drilling mechanism arranged behind the limiting transverse plate, the drilling mechanism comprises an adjusting support which can be adjusted in a front-back and up-down movement mode, and the drill bits are arranged on the adjusting support side by side in the left-right direction; and avoidance slotted holes which are distributed at intervals at left and right and used for avoiding the movement of the drill bit are arranged on the limiting transverse plate, and the avoidance slotted holes penetrate through the limiting transverse plate from front to back. After the rear end of the table unit is abutted against the limiting transverse plate, the drill bit can be controlled to penetrate through the limiting transverse plate forwards to punch holes on the table unit; and the punching operation can be completed by one-time feeding.

Preferably, the lower part of the front end of the limiting transverse plate is provided with a plurality of supporting lugs which extend forwards and are arranged at intervals left and right, and the supporting lugs are configured to support the table plate unit; any one avoidance slotted hole is positioned between the two supporting lugs; and the upper end surface of the supporting bump is flush with the upper end surface of the bearing platform. When the rear end of the table unit is abutted against the limiting transverse plate, the bottom of the table unit is abutted against the supporting lug, and the supporting lug and the supporting platform support the table unit together; the two adjacent supporting lugs are separated; when the table plate unit is drilled, the sawdust of the table plate unit falls down from the space between the two supporting convex blocks; otherwise, dust is easily accumulated below the table unit, resulting in the table unit being lifted; or otherwise affect machine operation.

Preferably, the positioning pressing beam is arranged above the joint position of the supporting bump and the bearing platform. When punching, the rear end of the table board unit is punched; the table unit is pressed only by the positioning pressing disc, and the phenomenon that the rear end of the table unit shakes when the hole is punched still exists; therefore, the positioning pressing beam is arranged, the position of the table plate unit close to the rear can be further pressed, the table plate unit is always kept stable in the punching process, and the final punching precision is improved.

Preferably, the distance between the rear end of the positioning pressing beam and the limiting transverse plate is between 0.5 and 5cm along the front-back direction. When punching, the rear end of the plate is abutted to the limiting transverse plate, so that the positioning pressing beam can stably press the rear punching area of the plate, and the punching stability is ensured.

Preferably, the drilling mechanism further comprises a rear driving mechanism for driving the adjusting support, and the rear driving mechanism comprises a base plate and two guide posts which are arranged on the base plate and are spaced from each other at left and right; a lifting control platform is arranged on the two guide pillars and can move up and down along the guide pillars; the upper ends of the two guide columns are provided with rear lifting components for controlling the lifting of the lifting control platform; a rear push-pull electric cylinder is also arranged on the lifting control platform; the telescopic main rod on the rear push-pull electric cylinder penetrates the lifting control platform forwards and is connected with the rear end of the adjusting support. Then, the rear lifting assembly can drive the lifting control platform and drive the rear push-pull electric cylinder to move up and down, so that the adjusting support is controlled to move up and down; the rear push-pull electric cylinder can drive the adjusting support to move back and forth; the synchronous feeding motion of a row of drill bits can be stably controlled.

Preferably, the rear lifting assembly is of a screw rod and nut structure, and one end of the screw rod is connected with a hand wheel for controlling the screw rod to rotate. The screw rod and the screw nut are high in control precision and stable in adjustment.

Preferably, the supporting platform comprises two supporting transverse plates which are spaced from each other in the front-back direction and extend along the left-right direction, and the supporting transverse plates are configured to support the table unit; and the upper end surface of each supporting transverse plate is provided with a groove which is arranged in a wavy manner, and the grooves are arranged on the supporting transverse plates along the front-back direction. If the upper end surface of the supporting transverse plate is completely horizontal, the contact area between the table plate unit and the supporting transverse plate is large, so that the table plate unit is difficult to ensure to be completely extruded and attached to the upper end surface of the supporting transverse plate, and a gap exists inevitably; and set up the recess at support diaphragm up end, can reduce the area of contact between support diaphragm and the table unit for the upper and lower extruded pressure of both contacts department is bigger, thereby makes to compress tightly positioning effect better.

Preferably, the positioning pin is made of a metal steel pipe. And the structural strength is ensured.

Preferably, the connecting rod comprises a rod body and rod heads which are positioned at two ends of the rod body and are used for connection; the length of the positioning pin and the length of the rod body tend to be equal. After the two table plate units are spliced, when one table plate unit is subjected to extrusion acting force, the stressed pressing points at the two ends of the rod body and the positioning pin are positioned on the same axis; so that the stress of the structure is more uniformly dispersed.

Preferably, the diameter of the positioning pin is larger than that of the connecting rod. The positioning pins are thicker than the connecting rods, so that the connecting pins mainly play a role in bearing stress after connection, and the connecting rods mainly play a role in tensioning the two table plate units; the two take their own roles to avoid connection

The design starting point, the idea and the beneficial effects of the invention adopting the technical scheme are as follows:

firstly, in order to ensure that the two table units are spliced smoothly, the processing requirement on the positioning holes on the table units is high; the hole arranging device is adopted to drill the table unit, so that during operation, a user only needs to place the table unit on the bearing station; then, the plate can be stably positioned on the bearing platform under the action of the side positioning assembly, the front positioning assembly, the positioning pressure plate and the positioning pressure beam; the drilling mechanism can drive the rows of drill bits to perform simultaneous feeding so as to drill the table unit; the positioning holes and the through holes on the splicing side walls of the table unit can be machined and formed through one-time operation, and the positioning pressing beam can stably press the rear end of the table unit, so that the drilling precision is high, and the centers of the positioning holes and the through holes can be kept on the same horizontal line; in the splicing step, the positioning pin and the connecting rod between the two table plate units are at the same height, and when the two table plate units are spliced and matched, the two table plate units can be spliced together smoothly without unevenness at the splicing position. And the hole arranging device can realize full-automatic punching of the table unit, so that the production efficiency is improved.

Secondly, the hard nesting is pre-embedded in the caulking groove, so that the fastener of the eccentric wheel structure is not in extrusion contact with the table plate unit when being screwed in the caulking groove, but is in direct contact with the hard nesting; the purpose of this design is: a common table structure generally consists of: the middle core material and the hard splints on the front and back surfaces of the core material, wherein the outer surface of the hard splints is paper or a veneer layer; for some table boards with softer middle core materials, such as the middle core material of albizia falcataria, a three-in-one connector is provided if the connector directly contacts the middle core material; then when the connecting rod is tightened by screwing, the fastener will be in pressing contact with the core material, and the core material is soft, so that the fastener can be embedded into the core material in a vertically inclined manner, the locking effect is poor, and the appearance is also affected. The hard nesting is pre-embedded in the caulking groove, and the fastening piece is directly contacted with the nesting, so that the stress is uniformly dispersed, and the fastening piece can keep forward screwing and cannot deflect; the locking effect is ensured, and the appearance is beautified. Correspondingly, the inner hexagonal sunken groove can be formed on the upper end surface of the fastener in a machining mode. The traditional fastener adopts a cross sink groove, and because the nesting is additionally arranged, the structural strength of the joint is improved; the fastener can bear bigger screwing force, so that the fastener is provided with the inner hexagonal sunken groove, an L-shaped inner hexagonal wrench can be adopted to screw the fastener, and the operation is more labor-saving and easier.

Moreover, the diameter of the positioning pin is larger than that of the connecting rod between the two spliced table plate units; the positioning pin is thicker than the connecting rod, and the positioning pin mainly plays a role in bearing stress after connection; the connecting rod mainly plays a role in tensioning the two table plate units; the two parts respectively play their own roles, so that the connecting rod is prevented from being loosened due to stress; so that the two table units can be always locked.

Drawings

FIG. 1 is a schematic perspective view of two table units assembled together according to the present invention;

FIG. 2 is a schematic diagram of the positioning pins and the connecting rods inside the two table units according to the embodiment of the present invention;

FIG. 3 is a schematic perspective view of a single table unit according to an embodiment of the present invention;

FIG. 4 is a schematic perspective view of an exemplary hole array device according to the present invention;

FIG. 5 is an enlarged view of portion A of FIG. 4;

FIG. 6 is a schematic perspective view of the rear end of the hole array device in an embodiment of the present invention;

FIG. 7 is a schematic side view of an exemplary hole array device according to the present invention;

FIG. 8 is an enlarged view of detail B of FIG. 7;

FIG. 9 is a schematic perspective view of a single table unit placed on a holding station according to an embodiment of the present invention;

FIG. 10 is a schematic perspective view of a susceptor in an embodiment of the present invention;

FIG. 11 is a schematic perspective view of a synchronizing mechanism according to an embodiment of the present invention;

FIG. 12 is a schematic perspective view of a drilling mechanism according to an embodiment of the present invention;

FIG. 13 is a schematic perspective view of a three-in-one connector disposed between two table units according to an embodiment of the present invention;

FIG. 14 is an enlarged view of detail C of FIG. 13;

FIG. 15 is a schematic perspective view of a fastener, nest and nest in accordance with an embodiment of the invention;

fig. 16 is a schematic perspective view of a nested structure in an embodiment of the invention.

The various reference numbers are: a table unit a; splicing the side walls a1; a hole arrangement device B; a work table 1; a supporting platform 2; supporting the transverse plate 2a; a side positioning member 3; a transverse limiting plate 4; a front positioning assembly 5; a front positioning push plate 6; a positioning platen 7; positioning the pressing beam 8; a drilling mechanism 9; an adjusting support 10; a bit driving motor 101; a drill bit 11; a slide rail 12; a slider 13; a sliding telescoping assembly 14; a slide driving cylinder 14a; a recess 15; positioning the side plate 3a; a first push-pull drive cylinder 3b; a positioning projection 16; a second push-pull drive electric cylinder 5a; the supporting projections 4a; avoiding the slotted hole 17; a column 18; an upper suspension 19; side support beams 191; an upper support beam 192; a first lift cylinder 193; a second lift cylinder 20; a lifting base 21; a synchronization mechanism 22; a rotating link 23; a guide wheel 231; a guide groove 232; a synchronization abscissa 24; a side support table 25; a fixed support 26; a rear drive mechanism 27; a lift console 28; a substrate 29; a guide post 30; a rear lift assembly 31; a digital position display 31a; a screw rod 32b; a rear push-pull electric cylinder 32; a telescopic main rod 321; a guide rod 33; positioning holes 34; a connecting rod 35; a fastener 36; the knurling patterns 36a; an inner hexagonal countersink 36b; a caulking groove 37; a nest 38; the outer convex teeth 38a; the inner convex teeth 38b; a via 39; a notch 40; and a positioning pin 41.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention, taken in conjunction with the accompanying drawings and detailed description, is set forth below. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, the term "at least one" means one or more than one unless explicitly defined otherwise. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The specific embodiment of the invention is as follows:

as shown in fig. 1-16, the present invention provides a table board processing and splicing process; which comprises the following steps:

the method comprises the following steps: as shown in fig. 1-3, at least two table plate units a for splicing are prefabricated, and the table plate units a can be spliced to form an integral horizontal table top;

step two: as shown in fig. 3-12, the hole arrangement device B is used to sequentially drill the splicing side walls a1 of the single table unit a; thereby facilitating the provision of the connection structure between the two table units a. The hole arrangement device B is designed for facilitating hole position processing on the table plate unit a; the hole arranging device B comprises a workbench 1, wherein a bearing station 201 is arranged on the workbench 1, a bearing platform 2 for bearing the table unit a is arranged at the bearing station 201, and lateral positioning components 3 are arranged on two sides of the bearing platform 2; the workbench 1 is also provided with a front and rear positioning mechanism and an upper and lower positioning mechanism; the front and rear positioning mechanism comprises a limiting transverse plate 4 arranged at the rear end of the workbench 1 and a front positioning component 5 arranged at the front end of the workbench 1; the front positioning assembly 5 comprises a front positioning push plate 6 for pushing the table unit a on the supporting platform 2 backwards to abut against the limiting transverse plate 4. The up-down positioning mechanism comprises a positioning pressure plate 7 and a positioning pressure beam 8 which are arranged above the bearing platform 2 and can be adjusted in a lifting mode, and the positioning pressure plate 7 and the positioning pressure beam can be pressed downwards to press the table board unit a on the bearing platform 2. A drilling mechanism 9 for drilling the table unit a is arranged behind the limiting transverse plate 4, and the drilling mechanism 9 comprises an adjusting support 10 which can be adjusted back and forth and up and down and a row of drill bits 11 which are arranged on the adjusting support 10 along the left and right direction.

Specifically, the method comprises the following steps: as shown in fig. 4-10, two slide rails 12 spaced from each other in the front-rear direction are disposed on the workbench 1 below the supporting platform 2, and the slide rails 12 extend in the left-right direction; sliding seats 13 which are arranged on each sliding rail 12 in a sliding manner are respectively arranged at the front side and the rear side of the bottom of the supporting platform 2, so that the whole supporting platform 2 can slide left and right along the sliding rails 12; a sliding telescopic component 14 for driving the supporting platform 2 to slide along the sliding rail 12 is arranged on one side of the workbench 1, the sliding telescopic component 14 comprises a sliding driving electric cylinder 14a connected to the workbench 1, and a push rod on the sliding driving electric cylinder 14a is connected to the bottom end of the supporting platform 2; then the electric cylinder 14a is driven by the sliding to control the bearing platform 2 to move left and right; after the table unit a is positioned on the supporting platform 2, the left and right positions of the table unit a can be further adjusted by controlling the supporting platform 2 to move left and right.

As shown in fig. 4 and 10, the supporting platform 2 is a plate-shaped structure, and the supporting platform 2 includes two supporting horizontal plates 2a spaced from each other in the front-back direction and extending in the left-right direction, and the supporting horizontal plates 2a are configured to support the table unit a; and the upper end face of each supporting transverse plate 2a is provided with a groove 15 which is arranged in a wavy manner, and the grooves 15 are arranged on the supporting transverse plates 2a along the front-back direction. The purpose of this design is: if the upper end surface of the supporting transverse plate 2a is completely horizontal, the contact area between the table unit a and the supporting transverse plate 2a is large, so that the table unit a is difficult to ensure to be completely extruded and attached to the upper end surface of the supporting transverse plate 2a, and a gap is inevitably formed; the grooves 15 are formed in the upper end faces of the supporting transverse plates, so that the contact area between the supporting transverse plates 2a and the table unit a can be reduced, the pressure of vertical extrusion at the contact positions of the supporting transverse plates and the table unit a is larger, the pressing and positioning effects are better, and the positioning is firmer; the structural design is ingenious, and the consideration is more thorough. The side positioning assemblies 3 are arranged on the left side and the right side of the supporting platform 3 in a mirror image manner, and each side positioning assembly 3 comprises a positioning side plate 3a and a first push-pull driving electric cylinder 3b capable of driving the positioning side plate 3a to move left and right; strip-shaped positioning lugs 16 are further arranged on the front side and the rear side of the side positioning component 3 respectively, and the positioning lugs 16 are arranged along the left-right direction; when the table unit a is placed on the supporting platform 2, one side end of the table unit a is abutted against the end parts of the two positioning lugs 16, so that the table unit a is placed on the supporting platform 2 in a horizontal and square manner; then, the positioning side plates 3a on the left and right sides can be respectively moved toward the table unit a by the first push-pull driving cylinders 3b to clamp the table unit a, so that the table unit a and the supporting platform 2 are relatively fixed in the left-right direction.

As shown in fig. 4-9, the front positioning assembly 5 is disposed on the working platform 1 in front of the supporting platform 2, and the front positioning assembly 5 includes the front positioning push plate 6 and a second push-pull driving electric cylinder 38a for driving the front positioning push plate 6 to move back and forth. The limiting transverse plate 4 is in an upright state and is located at the rear end of the supporting platform 2, when the table unit a is placed on the supporting platform 2, the front positioning push plate 6 pushes the table unit a to move backwards, the rear end of the table unit a abuts against the limiting transverse plate 4, the table unit a is clamped between the front positioning push plate 6 and the limiting transverse plate 4, and the table unit a and the supporting platform 2 are relatively fixed in the front-back direction. Further, as shown in fig. 4-5, in the left-right direction, the limiting transverse plate 4 is provided with avoidance slotted holes 17 which are arranged at left-right intervals and used for avoiding the forward extension of the drill bit 11; a plurality of supporting lugs 4a which extend forwards and are arranged at intervals left and right are arranged at the lower part of the front end of the limiting transverse plate 4, and the avoidance slotted hole 17 is positioned between the two supporting lugs 4a; the support projection 4a is configured to support the table unit a; the upper end surface of the supporting bump 4a is flush with the upper end surface of the bearing platform 2; specifically, the method comprises the following steps: when the rear end of the table unit a abuts against the limiting transverse plate 4, the bottom of the table unit a abuts against the supporting lug 4a, and the supporting lug 4a and the supporting platform 2 support the table unit a together; and two adjacent supporting lugs 4a are separated; when the drill 11 drills the table unit a, the sawdust of the table unit a can just fall off from the space between the two supporting bumps 4a; otherwise, dust is easily accumulated below the table unit a, so that the table unit a is lifted or the machine operation is influenced; therefore, the arrangement of the spaced supporting lugs 4a can enable the sawdust to fall off while supporting the table plate unit a, and avoid the phenomenon of dust accumulation; the structure design is ingenious.

As shown in fig. 4 to 9, upright posts 18 are provided at both sides of the rear end of the work table 1 to protrude upward, and an upper end of the upright post 18 is provided with a U-shaped upper suspension 19 protruding forward, and the upper suspension 19 includes side support beams 191 connected to the upper end of the upright post 18 and protruding forward and an upper support beam 192 connected between the two side support beams 191; the positioning pressure plate 7 is controlled to lift by a longitudinal first lifting electric cylinder 193; the upper end of the first lift cylinder 193 is connected to the upper support beam 192. The positioning pressure plates 7 are arranged in two at left and right intervals, and as shown in fig. 8, the positioning pressure plates 7 are positioned right above the bearing platform 2; then the positioning platen 7 can be preliminarily pressed down so that the table unit a is pressed against the pallet 2.

And further: the positioning pressure beam 8 is also positioned above the bearing platform 2, and the positioning pressure beam 8 is arranged above the joint position of the supporting bump 4a and the bearing platform 2; this is because the rear end of the table unit a is drilled during drilling; the table unit a is pressed only by the positioning pressure plate 7, and the phenomenon that the rear end of the table unit a shakes when the hole is punched still exists; therefore, the positioning pressing beam 8 is further arranged, so that the position of the table plate unit a close to the rear can be further pressed, and the rear end of the table plate unit a is always kept stable in the punching process; and the distance between the rear end of the positioning pressure beam 8 and the limiting cross beam 4 is 1cm, so that the positioning pressure beam 8 can stably press the rear punching area of the table unit a. Two sides of the rear end of the workbench 1 are respectively provided with a second lifting electric cylinder 20 for driving the positioning pressing beam 8 to lift, the bottom of the second lifting electric cylinder 20 is provided with a lifting seat 21, and the second lifting electric cylinder 20 can control the lifting seat 21 to lift; the positioning pressure beam 8 is connected to the front end of the lifting seat 21; as shown in fig. 11, a synchronizing mechanism 22 is further provided between the left and right lifting bases 21, the synchronizing mechanism 22 includes a rotating link 23 rotatably provided inside each lifting base 21, and a synchronizing cross shaft 24 connected between the rotating links 23 on both sides; two sides of the rear end of the workbench 1 are respectively provided with a side supporting platform 25 extending upwards, the side supporting platform 25 is fixedly connected with a fixed support 26 extending forwards, and the synchronous transverse shaft 24 is rotatably arranged in the two fixed supports 26 in a penetrating manner; the front end of the rotating connecting rod 23 is connected with the synchronous cross shaft 24, the rear end of the rotating connecting rod 23 is rotatably connected with a guide wheel 231, and a guide groove 232 which is in sliding fit with the guide wheel 231 is correspondingly arranged on the inner side wall of the lifting seat 21 along the front-back direction; then, when the second lifting electric cylinders 20 on the two sides synchronously drive the lifting seats 21 to move up and down, each lifting seat 21 respectively acts on the rotating connecting rod 23 to rotate so as to drive the synchronous transverse shaft 24 to rotate; and the rotating connecting rod 23 drives the guide wheel 231 to correspondingly slide back and forth along the guide groove 232; the lifting seats 21 on the two sides can act on the synchronous transverse shaft 24 to rotate, and then the lifting seats 21 on the two sides must keep synchronous lifting to ensure that the device can stably run; therefore, the positioning pressing beam 8 can integrally keep horizontal up-and-down movement, the pressure applied to each position of the table unit a is equal when the positioning pressing beam 8 presses down, and the table unit a can be pressed more effectively.

As shown in fig. 12, the drilling mechanism 9 further comprises a rear driving mechanism 27 for driving the adjusting support 10, the rear driving mechanism 27 comprises a base plate 29 disposed behind the adjusting support 10 and connected and fixed to the worktable 1, and two guide posts 30 disposed on the base plate 29 and spaced left and right; a lifting control platform 28 is arranged on the two guide columns 30, and the lifting control platform 28 can move up and down along the guide columns 30; a rear lifting assembly 31 for controlling the lifting of the lifting control platform 28 is arranged at the upper ends of the two guide columns 30, the rear lifting assembly 31 adopts a screw rod and nut structure, and the rear lifting assembly 31 comprises a screw rod 32b and a nut (not shown) pre-embedded in the upper end of the lifting control platform 28; the lower end of the screw rod 32b is arranged in the upper end of the lifting control platform 28 in a penetrating way and is matched with the screw nut in a threaded way; a digital position display 31a is arranged above the lifting control platform 28, and specifically, the digital position display 31a is positioned on the substrate 29; the screw rod 32b is upwards arranged in the digital position display 31a in a penetrating way, and a hand wheel (not shown) is also arranged at the penetrating end of the top of the screw rod 32b; the lead screw 32b is generally constrained to rotate in the circumferential direction but not move axially by a bearing or a limit clip; during operation, control the screw through rotating the hand wheel in order to order about lead screw 32b and rotate and go up and down to adjust lift control platform 28 lift removal, digital position display 31a be common be used for with lead screw 32b complex mechanical counter, its rotation number of turns that can detect lead screw 32b, cooperation lead screw 32b pitch, thereby the high displacement of automatic calculation lift control platform 28 makes the regulation more accurate. For example, when drilling a 18mm thick sheet, the hand wheel can be controlled to rotate, and when the mechanical counter reads 9, the drill bit is located at the middle position of the thickness of the sheet.

A rear push-pull electric cylinder 32 is also arranged on the lifting control platform 28; the rear push-pull electric cylinder 32 has an electrically telescopic main rod 321, and the telescopic main rod 321 passes forward through the lifting console 28 and is connected to the rear end of the adjusting support 10; guide rods 33 which slide backwards and penetrate through the lifting control platform 28 are respectively arranged on two sides of the adjusting support 10, which are positioned on the telescopic main rod 321, and the guide rods 33 can slide forwards and backwards relative to the lifting control platform 28; further improving structural stability. Then, the rear lifting assembly 31 can drive the lifting control platform 28 and drive the rear push-pull electric cylinder 32 to move up and down, so as to control the adjusting support 10 to move up and down; and the rear push-pull electric cylinder 32 can drive the adjusting support 10 to move back and forth. Therefore, the back driving mechanism 27 can control the up-and-down and back-and-forth movement of each drill 11 in the escape slot 17, so that the height position of the drill 11 at the initial time can be adjusted in advance.

And as shown in fig. 12, the drill bits 11 are all adjusted in advance, and the centers of the drill bits 11 are located on the same horizontal straight line, so that the centers of all holes after being punched are located on a straight line. A drill driving motor 101 is arranged at the side part of the rear end of the adjusting support rod 10, and a transverse gear synchronous transmission mechanism (not shown) for driving each drill 11 to synchronously perform punching operation is arranged in the adjusting support rod 10, wherein the gear synchronous transmission mechanism comprises a synchronous belt and a plurality of gears, and provides working power for the drill 11 through gear meshing transmission; and then the drill driving motor 101 drives the gear synchronous mechanism to work so as to control each drill 11 to synchronously carry out the punching operation.

Then, when drilling the table unit a, the user only needs to place the table unit a on the supporting platform 2; then, under the action of the side positioning assembly 3, the front positioning assembly 5, the positioning pressure plate 7 and the positioning pressure beam 8, the table plate unit a can be automatically and stably positioned on the bearing platform 2; then the drilling mechanism 9 can drive the drill bits 11 which are arranged side by side to synchronously feed to drill the spliced side plate a1 at the rear end of the table plate unit a; and a row of positioning holes 34 and through holes 39 which are distributed in a left-right staggered manner can be formed in the splicing side wall a1 of the table unit a through one-time operation, so that the table unit a can be fully automatically punched, the drilling machining efficiency is high, and the productivity is improved. And the hole site precision is high, can guarantee that the center of every locating hole 34 and via hole 39 keeps on same water flat line.

Step three: as shown in fig. 1-3 and 13-16, a hard annular nesting 38 is embedded in the table units a, and a three-in-one connector is arranged between the two table units a, wherein the three-in-one connector comprises a connecting rod 35 and a fastener 36 of an eccentric wheel structure at least arranged on one of the table units a, and the fastener 36 is configured to be in clamping fit with the connecting rod 35 so as to tighten and splice the two table units a together. In step 2, the spliced side wall a1 of the table unit a is processed with a through hole 39 for the connecting rod 35 to penetrate through; then, in this step, one end of the connection rod 35 can be further inserted and fastened into one of the table units a.

Specifically, the method comprises the following steps: in the invention, the two table board units a are internally provided with a fastener 36 which is connected and matched with the connecting rod 35; the end surface of the table plate unit a is provided with a caulking groove 37 for accommodating the fastener 36 at the position corresponding to the through hole 39; the hard nest 38 is embedded in the insertion groove 37, and the fastener 36 is embedded in the nest 38 and can rotate in the circumferential direction in the nest 38. Specifically, the method comprises the following steps: the nesting sleeve 38 is made of plastic or metal materials, so that the nesting sleeve is made of hard materials, is not easy to deform and has good stress strength; the purpose of the invention to provide the nest 38 is: by embedding the nesting 38 in the embedding slot 37, the fastening piece 36 is not in pressing contact with the table board unit a when screwed in the embedding slot 37, but is directly in contact with the hard nesting 38; this is because the common table structure is generally composed of: the middle core material and the hard splints on the front and back surfaces of the core material are covered by paper or a veneer layer; for some table tops with softer center cores, such as the center core of albizzia falcata, a three-in-one connector is provided if the fastener 36 is in direct contact with the center core; then when the connecting rod 35 is tightened by screwing, the fastening element 36 will press against the core material, and due to the soft core material, the fastening element 36 may be inserted into the core material obliquely up and down, which results in poor locking effect and poor appearance. Therefore, by embedding the hard nesting 38 in the embedding slot 37, the fastening piece 36 is directly contacted with the nesting 38, so that the fastening piece 36 can keep positive screwing and cannot deflect; the locking effect is ensured, and the appearance is beautified.

Wherein the cross section of the fastening piece 36 is circular, and the caulking groove 37 is correspondingly configured as a circular groove; the nest 38 is configured to be snap-fit into the nest 37, and the two are interference fit; so that the nest 38 does not fall out of the nest 37 after it is inserted into the nest 37. As shown in fig. 16, the outer wall of the nesting sleeve 38 is uniformly provided with convex teeth 38a which are distributed in a wave shape; the convex teeth 38a make the contact area between the nest 38 and the nest 37 reduced during the process of the nest 38 being inserted in the nest 37, so that the nest 38 is more easily inserted and fitted in the nest 37; and after the nesting 38 is embedded in the caulking groove 37, the convex teeth 38a can increase the friction force between the two, so that the two are tightly connected, and the nesting 38 cannot deflect in the caulking groove 37. Again, the height of the nest 38 corresponds to the longitudinal depth of the nest 37. After the nesting 38 is embedded in the embedding groove 37, the upper end surface of the nesting 38 is flush with the upper end surface of the table board unit a, so that the structure is attractive. So that the fastener 36 will always engage in contact with the nest 38 and not be in pressing contact with the core of the table unit a; the connection structure is ensured to be stable.

As shown in fig. 13-15, the via 39 extends all the way through to the caulking groove 37; the nests 38 are correspondingly provided with notches 40 through which the connecting rods 35 pass. In addition, a hexagon socket head sink 36b is arranged at the center of the upper end face of the fastener 36; the traditional fastener 36 adopts a cross sink groove, and the nesting 38 is additionally arranged, so that the structural strength of the joint is increased; the fastener 36 can bear larger screwing force, so that the fastener is provided with the inner hexagonal sunken groove 36b, an L-shaped inner hexagonal wrench can be adopted to screw the fastener 36, and the operation is more labor-saving and easier; the specific connection mode of the three-in-one connector is common prior art, and is not the design point of the invention, so that redundant description is not needed in the embodiment. Moreover, inner convex teeth 38b which are arranged in a wavy shape are uniformly arranged on the inner wall of the nesting sleeve 38; correspondingly, knurling patterns 36a are arranged on the outer wall of the fastener 36; the friction between the nesting 38 and the fastener 36 can be increased, so that the fastener 36 cannot be retracted after being screwed in the nesting 38; has the function of stopping back. Then, in this step, the connecting rod 35 is first snap-fitted with the fastener 36 on one of the table units a.

Step four: then, a positioning pin 41 is sequentially inserted into the positioning hole 34 of one of the table unit a; the positioning pin 41 is configured to be inserted into and matched with the positioning hole 24; and the positioning pin 41 is made of a metal steel pipe; and the structural strength is ensured.

Step five: then, splicing the two table units a together, so that two ends of the positioning pin 41 are respectively inserted into the positioning holes 34 of the two table units a; the two ends of the connecting rod 35 are correspondingly and respectively inserted into the through holes 39 of the two table units a; at this time, the spliced sidewalls a1 of the two table units a are primarily spliced together.

Step six: finally, the fastener 36 is screwed, and the fastener 36 will be tightened to the connecting rod 35 to lock the two table units a. Finally, the joint between the two table units a is further made to be tighter through the knob fastener 36, so that the stable joint between the two table units a is realized. Further comprising: the diameter of the positioning pin 41 is larger than that of the connecting rod 35 (the diameter of the drill bit 11 can be preset); the positioning pin 41 is thicker than the connecting rod 35, and then the positioning pin 41 mainly plays a role in bearing stress after connection, and when one table board unit a is extruded, the positioning pin 41 is used for dispersing stress; the connecting rod 35 mainly plays a role in tensioning the two table plate units a; the two desk board units are respectively responsible for the functions of the two desk board units, the looseness caused by the stress of the connecting rod 35 is avoided, and the two desk board units a can be locked all the time. As shown in fig. 2, the connecting rod 35 includes a rod body and rod heads respectively located at two ends of the rod body for connection; the length of the positioning pin 41 and the length of the rod body tend to be equal; the purpose of this design is: when two table unit a are spliced and one table unit a is subjected to extrusion acting force, the rod body and the stressed pressing points at the two ends of the positioning pin 41 are positioned on the same axis; so that the stress of the structure is more uniformly dispersed. In addition, in the second step, the hole arranging device B is adopted, so that the processing precision of the hole positions on the table unit a is high, and the positioning pin 41 and the connecting rod 35 are at the same height; during splicing, the splicing flatness between the two table board units a is better, and the structural stress is better; the splicing part is not uneven.

In conclusion, in the table plate processing and splicing process, the positioning holes 34 and the through holes 39 are processed in the table plate unit a by the hole arranging device B, so that the processing efficiency is high, and the hole position precision is good. Secondly, a hard nesting 38 is pre-embedded in the embedding groove 37, so that unstable connection caused by the fact that the fastener 36 extrudes the inner core of the table board unit a is avoided; the connecting effect of the three-in-one connecting piece is better, and the structure is more stable; the positioning pin 41 is used for bearing stress, and the connecting rod 35 is used for tensioning the table board unit a; finally, the table unit a is convenient to process, the splicing structure between the two table units a is higher, and the flatness after splicing is better.

Claims

1. A table board processing and splicing process is characterized in that: the method comprises the following steps:

prefabricating at least two table plate units for splicing, wherein the table plate units can be spliced to form an integral horizontal table top;

step three, pre-burying hard annular nesting in the table plate units, and arranging a three-in-one connecting piece between the two table plate units; the connecting rod of the three-in-one connecting piece is inserted into one of the table plate units in advance; arranging the fastener of the eccentric wheel structure of the three-in-one connecting piece in the nest;

and step six, screwing the fastening piece, and tightening the fastening piece to the connecting rod to lock the two table board units.

2. The table processing and splicing process of claim 1, wherein: in the third step, an inner hexagonal sunken groove is formed on the upper end surface of the fastener in a machining mode.

3. The table processing and splicing process of claim 1, wherein: in the second step, a plurality of through holes for penetrating the connecting rods are processed and formed on the splicing side walls of the table plate units; the through hole is formed by synchronously processing the drill bit when the positioning hole is processed, and the centers of the through hole and the positioning hole are also positioned on the same straight line; an embedded groove used for containing a fastener is arranged at the position corresponding to the through hole on the end surface of the table plate unit, and the through hole is communicated with the embedded groove; in the third step, the nesting is embedded and installed in the caulking groove, and the height of the nesting is equal to the longitudinal depth of the caulking groove.

4. The table board processing and splicing process as claimed in claim 3, wherein: the through holes and the positioning holes are arranged in a staggered mode.

5. The table processing and splicing process of claim 3, wherein: the nesting is tightly clamped in the caulking groove, and the nesting and the caulking groove are in interference fit.

6. The table board processing and splicing process as claimed in claim 5, wherein: the nesting is provided with a notch for the connecting rod to pass through; and the outer wall of the nesting is uniformly provided with outer convex teeth which are distributed in a wavy shape, and the inner wall of the nesting is uniformly provided with inner convex teeth which are distributed in a wavy shape.

7. The table board processing and splicing process as claimed in claim 1, wherein: in the second step, a bearing table for bearing the table plate unit is arranged at the bearing station; the table plate unit is horizontally positioned on the supporting platform by the lateral positioning components positioned on two sides of the supporting platform and the front and rear positioning mechanisms positioned at the front and rear ends of the supporting platform.

8. The table board processing and splicing process of claim 7, wherein: the front and rear positioning mechanisms comprise a limiting transverse plate arranged at the rear end of the workbench and a front positioning assembly arranged at the front end of the workbench; the front positioning component comprises a front positioning push plate capable of moving back and forth; the front positioning push plate pushes the table plate unit backwards to be abutted with the front and back of the limiting transverse plate.

9. The table processing and splicing process of claim 8, wherein: the hole arrangement device comprises a drilling mechanism arranged behind the limiting transverse plate, the drilling mechanism comprises an adjusting support which can be adjusted in a front-back and up-down movement mode, and the drill bits are arranged on the adjusting support side by side in the left-right direction; and avoidance slotted holes which are distributed at intervals at left and right and used for avoiding the movement of the drill bit are arranged on the limiting transverse plate, and the avoidance slotted holes penetrate through the limiting transverse plate from front to back.

10. The table processing and splicing process of claim 9, wherein: the lower part of the front end of the limiting transverse plate is provided with a plurality of supporting lugs which extend forwards and are arranged at intervals left and right, and the supporting lugs are configured into supporting table plate units; any one avoidance slotted hole is positioned between the two supporting lugs; and the upper end surface of the supporting bump is flush with the upper end surface of the bearing platform.

11. The table processing and splicing process of claim 10, wherein: the positioning pressing beam is arranged above the joint position of the supporting convex block and the bearing platform.

12. The table board processing and splicing process of claim 11, wherein: and the distance from the rear end of the positioning pressing beam to the limiting transverse plate is between 0.5 and 5cm along the front and rear directions.

13. The table processing and splicing process of claim 9, wherein: the drilling mechanism also comprises a rear driving mechanism for driving the adjusting support, and the rear driving mechanism comprises a base plate and two guide posts which are arranged on the base plate at intervals from left to right; a lifting control platform is arranged on the two guide pillars and can move up and down along the guide pillars; the upper ends of the two guide posts are provided with a rear lifting component for controlling the lifting of the lifting control platform; a rear push-pull electric cylinder is also arranged on the lifting control platform; the telescopic main rod on the rear push-pull electric cylinder forwards penetrates through the lifting control platform and is connected to the rear end of the adjusting support.

14. The table board processing and splicing process of claim 13, wherein: the rear lifting assembly is of a screw rod and nut structure, and one end of the screw rod is connected with a hand wheel for controlling the screw rod to rotate.

15. The table board processing and splicing process of claim 7, wherein: the supporting platform comprises two supporting transverse plates which are spaced front and back and extend along the left-right direction, and the supporting transverse plates are configured to be used for supporting the table plate unit; and the upper end surface of each supporting transverse plate is provided with a groove which is arranged in a wavy manner, and the grooves are arranged on the supporting transverse plates along the front-back direction.

16. The table processing and splicing process of claim 1, wherein: the positioning pin is made of a metal steel pipe.

17. The table board processing and splicing process as claimed in claim 1, wherein: the connecting rod comprises a rod body and rod heads which are positioned at two ends of the rod body and used for connection; the length of the positioning pin and the length of the rod body tend to be equal.

18. The table board processing and splicing process as claimed in claim 1, wherein: the diameter of the positioning pin is larger than that of the connecting rod.