CN113618567A

CN113618567A - Automatic grinding processing equipment for arc-shaped backrest of wooden chair

Info

Publication number: CN113618567A
Application number: CN202111195166.XA
Authority: CN
Inventors: 王昕�
Original assignee: Xuzhou Shunyuan Wood Industry Co ltd
Current assignee: Xuzhou Shunyuan Wood Industry Co ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2021-11-09
Anticipated expiration: 2041-10-14
Also published as: CN113618567B

Abstract

The invention relates to the technical field of automatic grinding equipment, in particular to automatic grinding equipment for an arc backrest of a wooden chair, which belongs to the technical field of automatic grinding equipment and comprises a processing base, wherein a grinding part and workpiece fixing components are arranged on the processing base, the workpiece fixing components are distributed up and down, each workpiece fixing component comprises a plurality of fixing seats, the fixing seats are distributed in a circulating state, the fixing seats which correspond up and down form an independent workpiece changing line, and a bidirectional changing shaft corresponding to the workpiece changing line is connected to the processing base. The invention effectively combines the replacement process of the workpiece with the polishing process of the workpiece through the combined action of the fixed seat and the bidirectional replacement shaft, optimizes the processing path and the processing space of polishing processing, improves the compactness of polishing processing equipment and the processing efficiency, and correspondingly improves the effective allocation rate of the processing path, the processing space and the processing efficiency.

Description

Automatic grinding processing equipment for arc-shaped backrest of wooden chair

Technical Field

The invention relates to the technical field of automatic polishing and processing equipment, in particular to automatic polishing and processing equipment for an arc-shaped backrest of a wooden chair.

Background

In the current chair market with various materials, the wooden chair still keeps the development trend of being prosperous and unabated, the reason is that the wooden chair has the characteristics of nature, environmental protection and health, simultaneously, the natural beauty and the original beauty are revealed, the requirements of modern urban people on pursuing health and worming the people with the nature are met, and the comfort level and the beauty of the wooden chair are continuously optimized, so that the wooden chair can more comprehensively meet the use requirements of people.

Wooden chair is in the in-process of preparation, and to wooden material's the link of polishing very important, the quality of polishing directly has decided the pleasing to the eye degree and the comfort level of chair, especially to the polishing of arc back concave surface, because of the arc back concave surface is direct stress surface, the pleasing to the eye degree of chair not only can be influenced to the good or bad of concave surface quality of polishing, and the most important can directly shadow the comfort level of chair, and because of curved characteristics, the degree of difficulty of polishing has correspondingly been increased moreover.

One of the common polishing modes of the arc-shaped backrest is that the automatic polishing equipment is utilized to continuously polish the arc-shaped backrest placed in batch, the polishing mode has the advantages of high processing efficiency and high automation degree, and the requirements of social development are met, and the arc-shaped backrest needs to be polished along the direction of wood grains due to the wood polishing, so that the defects existing in the polishing process of the arc-shaped backrest in the continuous polishing mode at present are that the processing path of the automatic polishing equipment, the processing space and the effective configuration rate of the processing efficiency are low.

Disclosure of Invention

In order to solve the technical problems, the invention provides automatic grinding equipment for an arc-shaped backrest of a wooden chair, which is realized by the following specific technical means: comprises a processing base, a polishing piece and a workpiece fixing component are arranged on the processing base, the workpiece fixing component is distributed up and down, the workpiece fixing component comprises a plurality of fixing seats, the fixing seats are distributed in a circulating state, the symmetrical fixing seats form an independent workpiece replacing line, the processing base is connected with a bidirectional replacing shaft corresponding to the workpiece replacing line, the fixing seats on the workpiece replacing line are all connected on the bidirectional replacing shaft, stable limiting plates are symmetrically connected between the bidirectional replacing shaft and the fixing seats, the processing base is provided with reinforcing limiting plates which correspond to the fixing seats on the polishing station one by one, and the reinforcing limiting plates are provided with limiting grooves corresponding to the stabilizing limiting plates, a supporting connecting column is arranged between the adjacent reinforcing limiting plates, the supporting connecting column is fixedly connected to the processing base, and the supporting connecting column is provided with a retractable blocking assembly.

The first preferred technical scheme is as follows: the number of the fixing seats of each group of workpiece fixing assemblies is three, the fixing seats are distributed in a reuleaux triangle circulating state, and the compactness of the whole structure of the polishing equipment is improved.

The preferred technical scheme is as follows: the fixing seat is an arc-shaped clamping and fixing device.

The preferred technical scheme is three: the two-way change axle includes the fixed axle, the slip has cup jointed on the fixed axle and has changed the drive cover, it cup joints the one-way cover with higher speed that distributes about the symmetry slip on the drive cover to change, one-way sheathes in with higher speed rotates and is connected with the connecting seat, the fixing base is connected on the connecting seat, be connected with the stopper on the connecting seat, set up the direction passageway that uses with the stopper cooperation on the fixed axle, it is connected with the intermediate gear of symmetry from top to bottom to change to sheathe in, evenly be provided with the spacing turning block that uses with the intermediate gear cooperation on the fixed axle, be provided with the tooth strip of being connected with the intermediate gear meshing on the one-way acceleration cover, improve the convenience that the work piece was changed.

The preferable technical scheme is four: the guide channel comprises a linear guide part and a semi-spiral guide part, and the symmetrical semi-spiral guide parts are respectively positioned on the opposite sides of the symmetrical linear guide parts.

The preferred technical scheme is five: the reinforcing limiting plate is arc-shaped, and the limiting grooves are symmetrically arranged on the reinforcing limiting plate up and down, so that the stability of the fixing seat and the accuracy of the position are improved.

The preferred technical scheme is six: receive and release and keep off the subassembly including receiving and releasing connecting rod, flexibility and keep off face, a plurality of elasticity direction rope and accomodate the groove, accomodate the groove and set up on the support connection post, receive and release the connecting rod symmetry and rotate and connect on the support connection post with accomodate the position that the groove corresponds, the flexibility keeps off the face and connects and receive and release the connecting rod and accomodate between the groove, elasticity direction rope is connected on the flexibility keeps off the face, improves the quality of work piece processing.

The preferred technical scheme is seven: the flexible blocking surface is rectangular, any one side of the rectangular flexible blocking surface is connected to the accommodating groove, and two sides adjacent to the side are connected to the symmetrical accommodating connecting rods respectively.

The invention has the following beneficial effects: 1. this automatic processing equipment of polishing of wooden chair arc back passes through fixing base, two-way change axle, stabilizes the limiting plate, consolidates limiting plate and spacing groove combined action, is in the same place the effectual combination of the process of polishing of the change process of work piece and work piece, optimizes the machining path and the machining space of polishing processing, has improved the compactedness and the efficiency of processing equipment of polishing, has correspondingly improved the effectual configuration rate of machining path, machining space and machining efficiency three.

2. This automatic processing equipment that polishes of wooden chair arc back is through being the fixing base that the triangle-shaped circulation state that rouses distributes, and the effectual overlap ratio that has improved machining route and work piece distribution route has shortened the length of continuous processing route, has reduced the shared processing space of continuous processing, has improved the compactedness of processing equipment.

3. The automatic grinding processing equipment for the arc-shaped backrest of the wooden chair effectively improves the convenience of workpiece replacement and the automation degree of the replacement process through the bidirectional replacement shaft.

4. This automatic processing equipment of polishing of wooden chair arc back separates the processing station that will polish through receiving and releasing to separate the subassembly with other processing stations of polishing in vertical direction, can effectively avoid the in-process sediment bits of polishing to splash the problem that reduces other work piece surface quality on the work piece of other processing stations, has correspondingly improved the quality that the work piece was polished.

5. This automatic processing equipment of polishing of wooden chair arc back has effectively improved the stability of fixing base in the course of working of polishing through the combined action of stabilizing limiting plate and spacing groove to and be in the precision of placing the position when polishing the processing station.

Drawings

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

Fig. 2 is a schematic view of the distribution structure of the circulation state of the fixing base of the present invention.

FIG. 3 is a schematic cross-sectional view of the direction of the axis A-A of FIG. 2.

FIG. 4 is a schematic view of the support column of FIG. 2 in a direction B-B and a view illustrating the flexible barrier surface in an unfolded state.

Fig. 5 is an enlarged view of the invention at a in fig. 3.

FIG. 6 is a schematic view of a reinforced position-limiting plate according to the present invention.

FIG. 7 is a schematic view of a workpiece replacement line structure according to the present invention.

In the figure: 1. processing a base; 2. polishing the workpiece; 3. a fixed seat; 4. bidirectional shaft replacement; 41. a fixed shaft; 42. replacing the driving sleeve; 43. a one-way accelerating sleeve; 44. a connecting seat; 45. a limiting block; 46. a guide channel; 47. an intermediate gear; 48. a limiting rotating block; 49. a tooth rack; 5. a stable limiting plate; 6. reinforcing the limiting plate; 7. a limiting groove; 8. a support connection column; 9. retracting and releasing the blocking component; 91. retracting and releasing the connecting rod; 92. a flexible barrier surface; 93. an elastic guide rope; 94. a receiving groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, an automatic grinding and processing device for an arc backrest of a wooden chair comprises a processing base 1, wherein a grinding part 2 and workpiece fixing components are arranged on the processing base 1, the workpiece is an arc backrest to be ground, the workpiece fixing components are distributed up and down, each group of workpiece fixing components comprises a plurality of fixing seats 3, the fixing seats 3 are distributed in a circulating state, the fixing seats 3 are arc clamping and fixing devices, the workpiece is clamped and fixed through the arc clamping and fixing devices to form a circulating processing line, a processing path of the grinding part 2 is arranged according to the circulating processing line, the grinding part 2 can be driven to move along the processing path through a driving device such as a mechanical arm, the fixing seats 3 which correspond up and down form independent workpiece replacing lines, each workpiece replacing line corresponds to one grinding and processing station, and all the grinding and processing stations are positioned on the same horizontal plane, the machining base 1 is connected with a bidirectional replacing shaft 4 corresponding to a workpiece replacing line, as shown in fig. 7, two fixed seats 3 on the same workpiece replacing line are both connected on the bidirectional replacing shaft 4, the fixed seats 3 are distributed up and down, and the two fixed seats 3 are respectively positioned at two sides of the bidirectional replacing shaft 4, meanwhile, stable limiting plates 5 are symmetrically connected between the bidirectional replacement shaft 4 and the fixed seat 3, a reinforcing limiting plate 6 is arranged above the processing base 1, the reinforcing limiting plate 6 is in one-to-one correspondence with the fixed seat 3 on the polishing station, and the reinforcing limiting plates 6 are provided with limiting grooves 7 corresponding to the stabilizing limiting plates 5, a supporting connecting column 8 is arranged between every two adjacent reinforcing limiting plates 6, the supporting connecting column 8 is connected to the corresponding reinforcing limiting plates 6 through an arc-shaped plate, the supporting connecting column 8 is fixedly connected to the processing base 1, and the supporting connecting column 8 is provided with a retraction blocking assembly 9.

Referring to fig. 2, the number of the fixing seats 3 of each group of workpiece fixing assemblies is three, and the fixing seats are distributed in a reuleaux triangle circulating state, as shown in fig. 2, the dotted line part is a reuleaux triangle, the processing path corresponds to the reuleaux triangle, and the coincidence ratio of the processing path and the workpiece distribution path is high, so that the length of the continuous processing path is effectively shortened, meanwhile, the processing space occupied by continuous processing is reduced, and the compactness of the processing equipment is improved.

Referring to fig. 3, the bidirectional replacing shaft 4 includes a fixed shaft 41, a replacing driving sleeve 42 is slidably sleeved on the fixed shaft 41, an external driving device i is connected on the replacing driving sleeve 42, a unidirectional accelerating sleeve 43 which is distributed up and down is symmetrically slidably sleeved on the replacing driving sleeve 42, a connecting seat 44 is rotatably connected on the unidirectional accelerating sleeve 43, the fixed seat 3 is connected on the connecting seat 44, a limit block 45 is connected on the connecting seat 44, a guide channel 46 which is used in cooperation with the limit block 45 is arranged on the fixed shaft 41, a central gear 47 which is symmetrical up and down is rotatably connected on the replacing driving sleeve 42, limit rotating blocks 48 which are used in cooperation with the central gear 47 are uniformly arranged on the fixed shaft 41, the limit rotating blocks 48 are pawls, an elastic member is connected between the pawls and the fixed shaft 41, a rack 49 which is engaged and connected with the central gear 47 is arranged on the unidirectional accelerating sleeve 43, and the uniformly arranged limit rotating blocks 48 form a unidirectional engaged driving line, the driving directions of the symmetrically arranged driving wires are opposite, as shown in fig. 3, when the intermediate gear 47 moves upwards, the teeth on the upper intermediate gear 47 are engaged with the corresponding limiting rotating block 48, so that the intermediate gear 47 rotates clockwise to drive the corresponding one-way accelerating sleeve 43 to slide upwards on the replacing driving sleeve 42, at this time, when the teeth on the lower intermediate gear 47 pass through the corresponding limiting rotating block 48, the limiting rotating block 48 is forced to rotate and is not engaged with the corresponding teeth, so that the lower one-way accelerating sleeve 43 and the replacing driving sleeve 42 keep synchronous movement, similarly, when the intermediate gear 47 moves downwards, the upper one-way accelerating sleeve 43 and the replacing driving sleeve 42 keep synchronous movement, the lower one-way accelerating sleeve 43 makes a downward sliding movement on the replacing driving sleeve 42, the guiding channel 46 comprises a linear guiding part and a semi-spiral guiding part, the symmetrical semi-spiral guide parts are respectively positioned on the opposite sides of the two linear guide parts which are symmetrical up and down, the linear guide parts are used for limiting the connecting seat 44 to do linear motion, and the semi-spiral guide parts are used for controlling and limiting the connecting seat 44 to do spiral rotation motion.

Referring to fig. 6, consolidate limiting plate 6 and be the arc, spacing groove 7 longitudinal symmetry sets up on consolidating limiting plate 6, both can restrict stable limiting plate 5 through spacing groove 7, improves the stability of fixing base 3 in the course of working of polishing, can prescribe a limit to stable limiting plate 5 shift position through spacing groove 7 again, improves the precision that fixing base 3 placed the position when being in the processing station of polishing.

Referring to fig. 4, the retracting and releasing blocking assembly 9 includes a retracting and releasing connecting rod 91, a flexible blocking surface 92, a plurality of elastic guide ropes 93 and a accommodating groove 94, the accommodating groove 94 is formed in the supporting and connecting post 8, the retracting and releasing connecting rod 91 is symmetrically and rotatably connected to the supporting and connecting post 8 at a position corresponding to the accommodating groove 94, a second external driving device is connected to the retracting and releasing connecting rod 91, the flexible blocking surface 92 is connected between the retracting and releasing connecting rod 91 and the accommodating groove 94, the elastic guide ropes 93 are connected to the flexible blocking surface 92, the flexible blocking surface 92 is rectangular, any one side of the rectangular flexible blocking surface 92 is connected to the accommodating groove 94, and two sides adjacent to the side are respectively connected to the symmetrical retracting and releasing connecting rod 91.

The working principle is as follows: the automatic grinding processing equipment for the arc backrest of the wooden chair needs to be matched with a slag scrap collecting device for use, the slag scrap collecting device can be a dust collector, in the grinding process of workpieces, the workpieces are firstly fixedly placed on a fixed seat 3 to form a circular processing line, processing paths are arranged according to the processing line, as shown in figure 2, the number of the fixed seats 3 of each group of workpiece fixing components is three, the fixed seats are distributed in a reuleaux triangle circular state, the overlap ratio of the processing paths arranged according to the distribution state and the workpiece distribution paths is higher, the overall length of the continuous processing paths is effectively shortened, meanwhile, the processing space occupied by continuous processing is reduced, the compactness of the processing equipment is improved, then, a grinding part 2 is driven by a mechanical arm type driving device to sequentially grind the workpieces on the paths along the processing paths, in the grinding process, after finishing polishing the workpiece on the current polishing processing station, the corresponding replacement driving sleeve 42 is driven by the external driving device to slide on the fixed shaft 41, the replacement driving sleeve 42 synchronously drives the one-way acceleration sleeve 43 to slide in the sliding process, so that one of the one-way acceleration sleeves 43 moves to the position in front of the other one-way acceleration sleeve 43, as shown in fig. 3, when the upper one-way acceleration sleeve 43 is positioned at the polishing processing station, after the corresponding workpiece on the upper one-way acceleration sleeve is polished, the external driving device drives the replacement driving sleeve 42 to slide upwards, the upper one-way acceleration sleeve 43 moves upwards, synchronously, the lower one-way acceleration sleeve 43 moves upwards to the position in front of the upper one-way acceleration sleeve 43, so as to finish the replacement of the workpiece on the polishing processing station, in the process of sliding the replacement driving sleeve 42 upwards, the intermediate gear 47 corresponding to the upper one-way acceleration sleeve 43 rotates clockwise under the action of the corresponding limit rotating block 48, the middle gear 47 rotating clockwise drives the upper one-way accelerating sleeve 43 to slide upwards on the replacing driving sleeve 42 through the engaged tooth rack 49, at this time, the lower one-way accelerating sleeve 43 keeps sliding movement synchronous with the replacing driving sleeve 42, the sliding distance of the upper one-way accelerating sleeve 43 is twice of the sliding distance of the lower one-way accelerating sleeve 43, meanwhile, in the sliding process of the upper one-way accelerating sleeve 43, the limit block 45 on the corresponding connecting seat 44 moves linearly upwards under the action of the linear guide part of the guide channel 46, then, under the action of the semi-spiral guide part, the upper one-way accelerating sleeve rotates spirally, the fixing seat 3 connected with the upper one-way accelerating sleeve is synchronously driven to rotate spirally, when the lower one-way accelerating sleeve 43 moves upwards to the position of the upper one-way accelerating sleeve 43, the fixing seat 3 corresponding to the upper one-way accelerating sleeve 43 rotates 180 degrees based on the previous position, as shown in fig. 1, the rotated fixing base 3 is more convenient for replacing the workpiece thereon, otherwise, on the same principle, when the lower one-way accelerating sleeve 43 is located at the polishing station, after polishing is completed, the replacing driving sleeve 42 is driven by the external driving device to slide downwards, so that the workpiece on the polishing station is replaced, and meanwhile, the lower fixing base 3 is driven to automatically rotate to the position convenient for replacing the workpiece, to sum up, the replacing process of the workpiece and the polishing process of the workpiece are effectively combined together, the processing path and the processing space of polishing are optimized, the compactness of polishing equipment and the processing efficiency are improved, and the effective allocation rate of the processing path, the processing space and the processing efficiency is correspondingly improved.

In addition, in the polishing process, the corresponding retraction connecting rod 91 is driven to rotate through the second external driving device, the retraction connecting rod 91 drives the flexible blocking surface 92 to be opened, and an isolated rectangular blocking surface is formed, as shown in fig. 2, the blocking surface can separate the processing station which is polishing from other polishing processing stations in the vertical direction, the problem that the surface quality of other workpieces is reduced when slag scraps splash onto the workpieces of other processing stations in the polishing process can be effectively avoided, and the polishing quality of the workpieces is correspondingly improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automatic processing equipment of polishing of wooden chair arc back, includes processing base (1), its characterized in that: the processing base (1) is provided with a polishing part (2) and a workpiece fixing component, the workpiece fixing component is distributed up and down, the workpiece fixing component comprises a plurality of fixing seats (3), the fixing seats (3) are distributed in a circulating state, the symmetrical fixing seats (3) form an independent workpiece replacement line, the processing base (1) is connected with a bidirectional replacement shaft (4) corresponding to the workpiece replacement line, the fixing seats (3) on the workpiece replacement line are all connected on the bidirectional replacement shaft (4), a stable limiting plate (5) is symmetrically connected between the bidirectional replacement shaft (4) component and the fixing seats (3), the processing base (1) is provided with a reinforcing limiting plate (6), the reinforcing limiting plates (6) correspond to the fixing seats (3) on the polishing station one by one, and the reinforcing limiting plate (6) is provided with a limiting groove (7) corresponding to the stable limiting plate (5), a supporting connecting column (8) is arranged between the adjacent reinforcing limiting plates (6), the supporting connecting column (8) is fixedly connected to the processing base (1), and a retractable blocking assembly (9) is arranged on the supporting connecting column (8).

2. The automatic grinding and processing equipment for the arc-shaped backrest of the wooden chair as claimed in claim 1, wherein: the number of the fixing seats (3) of each group of workpiece fixing assemblies is three, and the fixing seats are distributed in a Reuleaux triangle circulating state.

3. The automatic grinding and processing equipment for the arc-shaped backrest of the wooden chair as claimed in claim 1, wherein: the fixing seat (3) is an arc-shaped clamping and fixing device.

4. The automatic grinding and processing equipment for the arc-shaped backrest of the wooden chair as claimed in claim 1, wherein: two-way more axle (4) include fixed axle (41), it has changed drive sleeve (42) to slide to cup joint on fixed axle (41), it has one-way acceleration cover (43) that distribute about the symmetry slides to cup joint on drive sleeve (42) to change, it is connected with connecting seat (44) to rotate on one-way acceleration cover (43), fixing base (3) are connected on connecting seat (44), be connected with stopper (45) on connecting seat (44), set up on fixed axle (41) and cooperate guide way (46) that use with stopper (45), it is connected with upper and lower symmetrical intermediate gear (47) to rotate on drive sleeve (42) to change, evenly be provided with on fixed axle (41) with intermediate gear (47) the cooperation spacing turning block (48) that use, be provided with on one-way acceleration cover (43) and be connected with intermediate gear (47) meshing rack (49).

5. The automatic grinding and processing equipment for the arc-shaped backrest of the wooden chair as claimed in claim 4, wherein: the guide channel (46) comprises a linear guide portion and a semi-spiral guide portion, and the symmetrical semi-spiral guide portions are respectively located on the opposite sides of the symmetrical linear guide portions.

6. The automatic grinding and processing equipment for the arc-shaped backrest of the wooden chair as claimed in claim 1, wherein: the reinforcing limiting plate (6) is arc-shaped, and the limiting grooves (7) are symmetrically arranged on the reinforcing limiting plate (6) from top to bottom.

7. The automatic grinding and processing equipment for the arc-shaped backrest of the wooden chair as claimed in claim 1, wherein: receive and release and keep off subassembly (9) including receiving and releasing connecting rod (91), flexible fender face (92), a plurality of elasticity direction rope (93) and accomodating groove (94), accomodate groove (94) and set up on support connection post (8), receive and release connecting rod (91) symmetry rotation connection on support connection post (8) and accomodate on the position that groove (94) corresponds, the flexibility keeps off face (92) and connects and receive and release connecting rod (91) and accomodate between groove (94), elasticity direction rope (93) are connected on the flexibility keeps off face (92).

8. The automatic grinding and processing equipment for the arc-shaped backrest of the wooden chair as claimed in claim 7, wherein: the flexible blocking surface (92) is rectangular, any one side of the rectangular flexible blocking surface (92) is connected to the accommodating groove (94), and two sides adjacent to the side are respectively connected to the symmetrical accommodating connecting rods (91).