Side hole wood plug punching machine

Abstract

The invention relates to the technical field of wood processing, and discloses a side hole wood tenon punching machine which comprises a feeding part, the feeding part comprises a base, the base is fixedly connected with a top plate through a guide rod fixed to the upper surface of the base, and a centering piece used for containing an external plate is arranged above the base; and the drilling machine body is used for drilling the side face of the outer plate. The side hole wood tenon punching machine can effectively solve the problems that in the prior art, after drilling of the side face of a wood board is completed, round bar tenons are mostly manually held by hands and knocked into the side holes one by one through a hammer, due to the fact that the individual difference of manual operation is large, the quality of the round bar tenons punched into the side holes is uneven, and the production efficiency is high. The problems that the quality and the performance of the whole product are affected, the production efficiency is low and the defective rate of spliced wood board products is increased due to the fact that the round bar tenon is not tightly matched with the side hole of the wood board and the driving depth is inconsistent or inclined in the prior art are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of wood processing, and specifically relates to a side-hole doweling machine. Background Art

[0002] Round-rod tenon splicing is an assembly connection method widely used in modern panel furniture. It uses round-rod-shaped wooden connectors to achieve a firm connection between plates through precise hole position matching and fixation. The round rod tenon can withstand a certain amount of tensile and shear forces, ensuring that the splicing part is not easily separated during use.

[0003] In the prior art, after drilling holes on the side of a wooden board, a round rod tenon is mostly held manually and hammered into the side hole one by one. Due to the large individual differences in manual operations, the quality of the round rod tenon after being driven into the side hole is uneven. There will be situations where the round rod tenon does not fit tightly with the side hole of the wooden board, the driving depth is inconsistent, or it is inclined, which will affect the quality and performance of the entire product, resulting in low production efficiency and an increase in the defective rate of the spliced wooden board products. Summary of the Invention

[0004] Aiming at the above-mentioned shortcomings of the prior art, the present invention provides a side-hole doweling machine, which can effectively solve the problems in the prior art that after drilling holes on the side of a wooden board, a round rod tenon is mostly held manually and hammered into the side hole one by one. Due to the large individual differences in manual operations, the quality of the round rod tenon after being driven into the side hole is uneven. There will be situations where the round rod tenon does not fit tightly with the side hole of the wooden board, the driving depth is inconsistent, or it is inclined, which will affect the quality and performance of the entire product, resulting in low production efficiency and an increase in the defective rate of the spliced wooden board products.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: The present invention provides a side-hole doweling machine, including: A feeding part, the feeding part includes a base, the base is fixedly connected to a top plate through a guide rod fixed on its upper surface, and a centering member for placing an external board is arranged above the base; A drilling machine body for drilling holes on the side of an external board; An assembling part, the assembling part includes a frame fixedly connected to the outer surface of the base, the frame is slidably connected with a sliding plate through a slide rail arranged on its upper surface, the sliding plate is slidably connected with a connecting seat through a guide rail arranged on its upper surface, one side of the connecting seat is fixedly installed on the outer surface of the drilling machine body, and a fitting for driving a round rod tenon into a side hole is arranged on the side of the connecting seat away from the drilling machine body; Among them, the assembly includes a seat plate fixedly connected to the outer surface of the connecting seat. A wood chip guiding sleeve is fixedly connected to the upper surface of the seat plate. The seat plate is fixedly connected with a material distributing conduit through a mounting plate arranged on its outer surface. A cavity is formed inside the wood chip guiding sleeve. The material distributing conduit is designed to be inclined. A connecting pipe is fixedly communicated inside the material distributing conduit, and the outer end of the connecting pipe extends above the cavity.

[0006] Furthermore, the seat plate is provided with a cylinder through a connecting plate fixed to the side away from the base. The output end of the cylinder is fixedly connected with a guide shaft, and the end of the guide shaft away from the cylinder extends into the cavity.

[0007] Furthermore, a baffle is fixedly connected to the upper surface of the wood chip guiding sleeve. There are two baffles which are symmetrically distributed on both sides of the connecting pipe.

[0008] Furthermore, the centering member includes side casings fixed to the upper surface of the base. There are two side casings which are symmetrically distributed on both sides of the base. A moving groove is formed inside the side casing. The outer circumferential surface of the guide rod is respectively slidably connected with an upper pressing plate and a lower pressing plate. The upper pressing plate and the lower pressing plate are symmetrically distributed on the upper and lower sides of the moving groove. Both the upper pressing plate and the lower pressing plate are rotatably connected with a connecting block through a connecting rod arranged on their outer sides. The outer side of the connecting block is slidably connected with the inner wall of the moving groove; Among them, the lower pressing plate is provided with a limiting member through a placing groove formed inside it.

[0009] Furthermore, a driving seat is arranged on the upper surface of the top plate. A lead screw is rotatably connected inside the driving seat. The end of the lead screw away from the driving seat is rotatably connected with a support seat fixedly connected to the upper surface of the top plate. A nut sleeve is sleeved on the outer surface of the lead screw. A sliding groove is formed on the upper surface of the top plate. A support column which is fixedly connected with the inner wall of the sliding groove in a fitting and sliding manner is fixedly connected below the nut sleeve. The lower surface of the support column penetrates through the sliding groove and is fixedly connected with the upper surface of the connecting block.

[0010] Furthermore, the limiting member includes a long rod which is rotatably connected through a shaft rod fixed to the side surface of the inner wall of the placing groove, and a torsion spring connected to the inside of the long rod is sleeved on the outer circumferential surface of the shaft rod. A short rod is fixedly connected to the outer surface of the long rod. A top column fixedly connected to the upper surface of the base is arranged inside the placing groove. The top end of the top column is designed with an arc which fits the outer surface of the short rod.

[0011] Furthermore, there are several groups of the placing grooves. Each group of the placing grooves has multiple ones. Through holes are formed inside the upper pressing plate, and the inner wall surface of the through holes is close to the outer surface of the long rod.

[0012] Further, the base is fixedly connected with a fixing rod through a receiving cavity opened on the side close to the frame. A spring connected to the inner side surface of the receiving cavity is sleeved on the outer surface of the fixing rod. One side of the spring close to the frame is connected with a special-shaped block slidably connected to the outer surface of the fixing rod. The side of the special-shaped block close to the spring is designed with an inclined surface. An special-shaped groove fitted with the inclined surface of the special-shaped block is opened on the side of the lower pressing plate close to the frame.

[0013] The technical solution provided by the present invention has the following beneficial effects compared with the prior art: The present invention is provided with a centering member, a drilling machine body and a fitting member. Among the centering members, the upper pressing plate, the lower pressing plate, the connecting block and the connecting rod together form a parallelogram mechanism, which converts the horizontal displacement into a vertical symmetric displacement. For plates of different thicknesses, the plane where the central axis of the thickness is located always coincides with the axis of the drill bit, solving the problem of the hole position height deviation of wooden boards of different thicknesses. When drilling and driving round tenons, the strength and stability of the connection points are ensured, avoiding the offset and strength reduction of the connection points caused by different plate thicknesses. From the feeding, positioning, drilling of the wooden board to the automatic conveying and driving of the round tenon, and then to the blanking and resetting, the whole process of the present invention does not require manual intervention, improving the degree of automation, reducing the complexity and labor intensity of manual operation, and improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the present invention; Figure 2 is a structural schematic diagram of the fitting member, the frame, the sliding plate and the connecting seat in an embodiment of the present invention; Figure 3 is a sectional structural schematic diagram of the base in an embodiment of the present invention; Figure 4 is a sectional structural schematic diagram of the frame in an embodiment of the present invention; Figure 5 is an embodiment of the present invention Figure 4 is a partial enlarged structural schematic diagram of part A in the embodiment; Figure 6 is an embodiment of the present invention Figure 4 is a partial enlarged structural schematic diagram of part B in the embodiment; Figure 7 is a separated structural schematic diagram of the base, the side machine shell and the lower pressing plate in an embodiment of the present invention; Figure 8 Structural schematic diagram of the long rod, short rod, torsion spring and ejector pin in the embodiment of the present invention; Figure 9 Separation structural schematic diagram of the special-shaped block and the lower pressing plate in the embodiment of the present invention.

[0016] The reference numerals in the figure respectively represent: 1, loading part; 11, base; 111, accommodation cavity; 12, guide rod; 13, top plate; 131, chute; 14, centering member; 141, side machine housing; 1411, moving groove; 142, upper pressing plate; 1421, through hole; 143, lower pressing plate; 1431, placement groove; 144, connecting rod; 145, connecting block; 15, driving seat; 151, lead screw; 152, support seat; 153, nut sleeve; 154, support column; 16, limiting member; 161, long rod; 162, torsion spring; 163, short rod; 164, ejector pin; 17, fixing rod; 171, spring; 172, special-shaped block; 173, special-shaped groove; 2, drilling rig body; 3, assembly part; 31, frame; 311, sliding plate; 32, connecting seat; 33, fitting; 331, seat plate; 332, wood chip guide sleeve; 3321, cavity; 333, mounting plate; 334, material distribution conduit; 335, connecting pipe; 336, guide shaft. Detailed implementation manners

[0017] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0018] The present invention will be further described below with reference to the embodiments. Embodiment

[0019] Please refer to Figures 1-9 , the present invention provides a technical solution: a side-hole doweling machine, comprising: A loading part 1, the loading part 1 includes a base 11, the base 11 is fixedly connected to a top plate 13 through a guide rod 12 fixed on its upper surface, and a centering member 14 for placing an external board is arranged above the base 11; A drilling rig body 2 for drilling holes in the side of an external board; Assembly department 3, the assembly department 3 includes a frame 31 fixedly connected to the outer surface of the base 11. A sliding plate 311 is slidably connected to the frame 31 through a slide rail provided on its upper surface. A connecting seat 32 is slidably connected to the sliding plate 311 through a guide rail provided on its upper surface. One side of the connecting seat 32 is fixedly installed on the outer surface of the drilling machine body 2. A fitting 33 for driving a round tenon into a side hole is provided on the side of the connecting seat 32 away from the drilling machine body 2; the moving directions of the slide rail and the guide rail are perpendicular to each other.

[0020] Among them, the fitting 33 includes a seat plate 331 fixedly connected to the outer surface of the connecting seat 32. A wood shaving guide sleeve 332 is fixedly connected to the upper surface of the seat plate 331. The seat plate 331 is fixedly connected to a material distribution conduit 334 through a mounting plate 333 provided on its outer surface. A cavity 3321 is provided inside the wood shaving guide sleeve 332. The material distribution conduit 334 is designed to be inclined. A connecting pipe 335 is fixedly communicated inside the material distribution conduit 334, and the outer end of the connecting pipe 335 extends above the cavity 3321.

[0021] The seat plate 331 is provided with a cylinder through a connecting plate fixed to the side away from the base 11. The output end of the cylinder is fixedly connected to a guide shaft 336, and the end of the guide shaft 336 away from the cylinder extends into the cavity 3321.

[0022] A baffle is fixedly connected to the upper surface of the wood shaving guide sleeve 332. There are two baffles and they are symmetrically distributed on both sides of the connecting pipe 335.

[0023] The centering member 14 includes side casings 141 fixed to the upper surface of the base 11. There are two side casings 141 and they are symmetrically distributed on both sides of the base 11. A moving groove 1411 is provided inside the side casing 141. An upper pressing plate 142 and a lower pressing plate 143 are respectively slidably connected to the outer circumferential surface of the guide rod 12. The upper pressing plate 142 and the lower pressing plate 143 are symmetrically distributed on the upper and lower sides of the moving groove 1411. Both the upper pressing plate 142 and the lower pressing plate 143 are rotatably connected to a connecting block 145 through a connecting rod 144 provided on their outer sides. The outer side of the connecting block 145 is slidably connected to the inner wall of the moving groove 1411; Among them, the lower pressing plate 143 is provided with a limiting member 16 through a placement groove 1431 provided inside it.

[0024] A driving seat 15 is provided on the upper surface of the top plate 13. A lead screw 151 is rotatably connected inside the driving seat 15. The end of the lead screw 151 away from the driving seat 15 is rotatably connected to a support seat 152 fixedly connected to the upper surface of the top plate 13. A nut sleeve 153 is sleeved on the outer surface of the lead screw 151. A chute 131 is provided on the upper surface of the top plate 13. A support column 154 that fits and slides with the inner wall of the chute 131 is fixedly connected below the nut sleeve 153. The lower surface of the support column 154 penetrates through the chute 131 and is fixedly connected to the upper surface of the connecting block 145.

[0025] The limiting member 16 includes a long rod 161. The long rod 161 is rotatably connected through a shaft rod fixed to the inner side surface of the placement groove 1431. A torsion spring 162 connected to the inside of the long rod 161 is sleeved on the outer circumferential surface of the shaft rod. A short rod 163 is fixedly connected to the outer surface of the long rod 161. A top post 164 fixedly connected to the upper surface of the base 11 is arranged inside the placement groove 1431. The top end of the top post 164 is designed with an arc that fits the outer surface of the short rod 163.

[0026] A number of groups of placement grooves 1431 are provided. Each group of placement grooves 1431 has multiple ones. Through holes 1421 are opened inside the upper pressing plate 142. The inner wall surface of the through holes 1421 is close to the outer surface of the long rod 161.

[0027] The base 11 is fixedly connected with a fixed rod 17 through an accommodation cavity 111 opened on one side close to the frame 31. A spring 171 connected to the inner side surface of the accommodation cavity 111 is sleeved on the outer surface of the fixed rod 17. A special-shaped block 172 slidably connected to the outer surface of the fixed rod 17 is connected to the side of the spring 171 close to the frame 31. The side of the special-shaped block 172 close to the spring 171 is designed with an inclined surface. A special-shaped groove 173 that fits the inclined surface of the special-shaped block 172 is opened on the side of the lower pressing plate 143 close to the frame 31. The fixed rod 17 penetrates through the inside of the special-shaped block 172.

[0028] A machine top frame is fixedly connected to the upper surface of the top plate 13. A vibrating disk for feeding the round tenons is placed on the outer surface of the machine top frame. One end of the material distribution conduit 334 far from the connecting pipe 335 is provided with a feeding pipe communicated with the inside of the vibrating disk. The side of the material distribution conduit 334 close to the base 11 is lower.

[0029] The process of centering and feeding the wooden board: When the round wooden tenon is connected with the hole of the wooden board, interference fit is mostly adopted to increase the friction force and connection strength at the splicing part of the wooden board, so that two or more wooden boards are firmly connected together. The holes of the wooden board are mostly opened in the middle position of the thickness of the board. Due to the difference in the hole height of wooden boards with different thicknesses, it is easy to cause assembly errors, and the wooden tenon cannot be accurately driven into the side hole of the board, affecting the splicing quality and the overall structural stability.

[0030] In the initial state, the distance between the two nut sleeves 153 on the left and right sides is relatively close. Correspondingly, the distance between the two sets of support columns 154 and connecting blocks 145 that are fixedly connected to the nut sleeves 153 and distributed on the left and right sides is also relatively close. The lower surface of the lower pressing plate 143 is in contact with the upper surface of the base 11, and the upper surface of the upper pressing plate 142 is in contact with the lower surface of the top plate 13. The two connecting blocks 145 are symmetrically distributed on the left and right sides of the lower pressing plate 143. In the placement groove 1431, the lower surface of the short rod 163 is in contact with the arc surface at the top end of the top column 164. The torsion spring 162 on the outer surface of the shaft rod is in a state of being compressed and storing energy. The long rod 161 is in a horizontally placed state. The highest points of the long rod 161 and the short rod 163 in this state are both lower than the upper surface of the base 11. The limiting member 16 is in a contracted state inside the placement groove 1431 and does not affect the normal loading and unloading of the board.

[0031] The side of the special-shaped groove 173 close to the drilling machine body 2 is designed with an inclined surface. The inclined surface of the special-shaped groove 173 is in close contact with the inclined surface on the outer side of the special-shaped block 172, and the slopes of the two inclined surfaces are the same. The spring 171 is designed with high strength. In this state, the spring 171 is in a stretched state. The special-shaped block 172 is at the side closest to the drilling machine body 2 within its stroke range, and the height of the special-shaped block 172 is higher than the thickness of the lower pressing plate 143. An operating platform is provided on the side of the base 11 away from the frame 31, and the upper surface of the operating platform is flush with the lower surface of the lower pressing plate 143 in the initial state. The operator moves the wooden board from the operating platform to the upper surface of the lower pressing plate 143 for loading. During loading, the outer side of the wooden board is in contact with the surface of the special-shaped block 172 away from the drilling machine body 2, so that the side surface of the wooden board is parallel to the outer end of the drilling machine body 2, and the loading step of the wooden board is completed.

[0032] The process of aligning the center point of the thickness of the wooden board with the axis line of the drilling machine body 2: The inside of the driving seat 15 is in transmission connection with the lead screws 151. There are two sets of lead screws 151, and the spiral grooves of the two sets of lead screws 151 rotate in opposite directions. Under the action of the rotation of the lead screws 151, the nut sleeves 153 on both sides move in opposite directions. Taking the left lead screw 151 as an example, when the lead screw 151 rotates, the support column 154 fixedly connected to the outer surface of the nut sleeve 153 slides to the left inside the chute 131, and drives the connecting block 145 fixed to its bottom to move to the left in the moving groove 1411. The distance between the left connecting block 145 and the side surface of the upper pressing plate 142 increases in the horizontal direction.

[0033] Accordingly, the connecting block 145 on the right slides to the right in the horizontal direction. The inner parts of the upper pressing plate 142 and the lower pressing plate 143 are both slidably connected to the outer surface of the vertical guide rod 12. There are four guide rods 12 arranged in an array. Under the action of the guide rod 12, the upper pressing plate 142 and the lower pressing plate 143 can only slide in the vertical direction. The distance between the two connecting blocks 145 increases, and the upper and lower groups of connecting rods 144 arranged on the outside of them gradually change from an inclined state to a horizontal state. Under the pulling action of the connecting rods 144, the upper pressing plate 142 gradually moves downward, and the lower pressing plate 143 gradually moves upward while supporting the wooden board. The two move towards each other in the vertical direction.

[0034] When the lower pressing plate 143 gradually moves upward, the lower surface of the lower pressing plate 143 begins to separate from the upper surface of the base 11. In the vertical direction, the distance between the shaft rod in the placement groove 1431 and the top of the top column 164 also gradually increases. Under the action of the torsion spring 162, the long rod 161 and the short rod 163 rotate synchronously around the shaft rod (the long rod 161 and the short rod 163 are integrally formed). The long rod 161 gradually tilts upward from the initial horizontal state, and the outer end of the long rod 161 away from the shaft rod protrudes above the upper surface of the lower pressing plate 143. There are multiple groups of placement grooves 1431, and each group of placement grooves 1431 is provided with multiple in the left-right direction. The multiple groups of placement grooves 1431 are arranged staggeredly in the front-back direction, which can limit the plates with different widths within a certain range. During the upward movement of the lower pressing plate 143, for the part of the placement grooves 1431 covered by the wooden board, the torsion force of the torsion spring 162 in the limiting member 16 is less than the gravity of the wooden board, and it is still in a contracted state, and the outer end of the long rod 161 is not higher than the lower surface of the lower pressing plate 143; while for the part of the placement grooves 1431 not covered by the wooden board, the limiting member 16 is in an unfolded state. Under the action of the torsion spring 162, the outer end of the long rod 161 protrudes above the upper surface of the lower pressing plate 143. When the short rod 163 no longer contacts the outer surface of the top column 164, the long rod 161 is in a vertical state under the action of the torsion spring 162 and remains stationary in this state.

[0035] After the board is placed, the group of limiting members 16 closest to the side of the wooden board and protruding from the outer surface of the placement groove 1431 is the first limiting member 16. Since the multiple groups of placement grooves 1431 are discontinuously designed in the front-back direction, there is still a certain gap between the board and the outer surface of the long rod 161 in the first limiting member 16.

[0036] After the lower pressing plate 143 moves upward a short distance, a part of the long rod 161 protrudes from the upper surface of the lower pressing plate 143. At the same time, the special-shaped groove 173 opened in the lower pressing plate 143 also moves upward synchronously. Driven by the spring 171, the special-shaped block 172 moves along the outer surface of the fixed rod 17 to the side away from the drilling rig body 2 (i.e., the direction where the wooden board is located). At this time, the top of the special-shaped block 172 is still higher than the lower surface of the lower pressing plate 143. The side of the special-shaped block 172 away from the drilling rig body 2 is in contact with the side surface of the wooden board. Under the action of the spring 171, the wooden board is driven to move towards the outer surface of the long rod 161 in the first limiting member 16 until one side of the wooden board is in contact with the outer surface of the long rod 161 in the first limiting member 16, and the other side of the wooden board is in contact with the outer surface of the special-shaped block 172 away from the drilling rig body 2 (the depth of the special-shaped groove 173 in the front-back direction is greater than the distance between two adjacent placement grooves 1431). Thus, the position of the wooden board on the plane is limited.

[0037] As the lower pressing plate 143 continues to carry the wooden board upward, the upper surface of the lower pressing plate 143 gradually approaches the top of the special-shaped block 172 until the lower pressing plate 143 is higher than the special-shaped block 172. After the special-shaped block 172 loses the pressing of the special-shaped groove 173, under the action of the spring 171, it moves to the side away from the drilling rig body 2 inside the accommodation cavity 111. After the elastic potential energy of the spring 171 is restored, the special-shaped block 172 is in a contracted state.

[0038] Driven by the driving seat 15, the upper pressing plate 142 and the lower pressing plate 143 continue to move towards each other until the lower surface of the upper pressing plate 142 is in contact with the upper surface of the plate. The driving seat 15 stops running and maintains this state, so that the plate is clamped between the upper pressing plate 142 and the lower pressing plate 143. The connecting rod 144, the upper pressing plate 142, the lower pressing plate 143 and the connecting block 145 form a parallelogram mechanism. When the connecting block 145 moves in the horizontal direction, the displacement amounts of the upper pressing plate 142 and the lower pressing plate 143 in the vertical direction are always equal. The upper pressing plate 142 moves downward, and the lower pressing plate 143 moves upward. The displacement amounts of their moving towards each other each account for half of the total displacement, so that the center of the thickness of the plate is always at the midpoint position of the strokes of the upper pressing plate 142 and the lower pressing plate 143. All the long rods 161 protruding from the outer surface of the placement groove 1431, including the first limiting member 16, are in a vertical state. When the upper pressing plate 142 and the lower pressing plate 143 approach each other, the tops of the vertical long rods 161 enter the through holes 1421 opened inside the upper pressing plate 142.

[0039] The process of drilling the wooden board: The plane where the central axis of the drill rig body 2 is located coincides with the plane where the central axis of the cylindrical cavity 3321 in the wood shaving guide sleeve 332 is located. Since the axis of the drill rig body 2 coincides with the centers of the upper pressing plate 142 and the lower pressing plate 143 in the initial state, the horizontal plane at the center of the final plate thickness must coincide with the axis of the drill rig body 2, ensuring that the center points are constant when drilling holes and driving round tenons into plates of different thicknesses.

[0040] The wood board is clamped by the upper pressing plate 142 and the lower pressing plate 143 in the vertical direction. Horizontally, the side of the wood board away from the drill rig body 2 is in contact with the outer surface of the long rod 161 in the first limiting member 16, preventing the wood board from shifting horizontally due to excessive impact force during subsequent drilling and driving of round tenons.

[0041] According to visual sensing, the connecting seat 32 slides to a suitable position through the guide rail provided on the upper surface of the sliding plate 311 to determine the distance between the drill rig body 2 and the side of the wood board. Starting from one side, the slide rail is activated, and the entire sliding plate 311 slides left and right on the horizontal plane. During the sliding process, the drill rig body 2 is activated to drill holes in the side of the wood board. After completion, multiple side holes are evenly formed on the side of the wood board.

[0042] The process of driving round tenons into the side holes: The upper surface of the top plate 13 is fixedly connected with a top frame. A vibrating plate for feeding round tenons is placed on the outer surface of the top frame. One end of the material distribution conduit 334 away from the connecting pipe 335 is provided with a feeding pipe communicating with the inside of the vibrating plate. Multiple round tenons flow into the feeding pipe through the vibrating plate in sequence and enter the inside of the material distribution conduit 334.

[0043] The material distribution conduit 334 is designed to be inclined, with the side closer to the base 11 being lower. The round tenons can naturally reach the inside of the connecting pipe 335 from the material distribution conduit 334 under the action of gravity. The lower surface of the connecting pipe 335 is provided with a notch. After the round tenons reach, they will fall into the cavity 3321 in the wood shaving guide sleeve 332 from the notch. The output end of the air cylinder is fixedly connected with the guide shaft 336. When the air cylinder is activated, it drives the only round tenon in the cavity 3321 towards the wood board, causing a part of the round tenon to be stuck into the side holes. The sliding plate 311 displaces left and right above the frame 31 through the slide rail, realizing the step-by-step driving of multiple round tenons into multiple side holes.

[0044] The process of discharging the wood board: The driving seat 15 drives the lead screw 151 to rotate, driving the nut sleeves 153, support columns 154 and connecting blocks 145 on both sides to move towards each other. As the connecting blocks 145 on both sides gradually approach, the upper pressing plate 142 gradually moves vertically upward, and the lower pressing plate 143 gradually moves vertically downward. The surface of the wooden board separates from the lower surface of the lower pressing plate 143, and the long rod 161 protruding from the upper surface of the lower pressing plate 143 also disengages from the inside of the through hole 1421.

[0045] The long rods 161 protruding from the notch surface of the placement groove 1431 are in a vertical state under the action of the torsion springs 162. During the process of the lower pressing plate 143 continuing to press down, the surface of the inclined short rod 163 will come into contact with the arc surface at the top of the ejector post 164. As the limiting member 16 continues to press down with the lower pressing plate 143, the long rod 161 and the short rod 163 rotate around the shaft rod under the jacking action of the ejector post 164, causing the long rod 161 and the short rod 163 to be inside the placement groove 1431, and multiple limiting members 16 are in a contracted state again, without affecting the normal blanking of the board.

[0046] Meanwhile, when the lower surface of the lower pressing plate 143 approaches the upper surface of the base 11, the inclined surface of the special-shaped groove 173 fits with the special-shaped block 172. As the lower pressing plate 143 continues to move downward, it will push the special-shaped block 172 to slide away from the wooden board side, and the spring 171 is stretched again until the lower surface of the lower pressing plate 143 fits with the upper surface of the base 11, and the feeding part 1 returns to the initial state. The operator can remove the wooden board from the upper surface of the lower pressing plate 143 to complete the blanking action.

[0047] In summary, the side-hole tenoning machine has the following advantages: Advantage 1: From the feeding, positioning, drilling of the wooden board to the automatic feeding and driving of the round tenons, and then to the blanking and resetting, the whole process does not require manual intervention, improving the degree of automation, reducing the complexity and labor intensity of manual operation, and improving the production efficiency.

[0048] Advantage 2: In the centering member 14, the upper pressing plate 142, the lower pressing plate 143, the connecting block 145 and the connecting rod 144 together form a parallelogram mechanism, converting the horizontal displacement into a vertical symmetric displacement. For wooden boards of different thicknesses, the plane where the central axis of the thickness is located always coincides with the axis of the drill bit, solving the problem of the height deviation of the hole positions for wooden boards of different thicknesses. When drilling and driving the round tenons, the strength and stability of the connection points are guaranteed, avoiding the offset and strength reduction of the connection points caused by different board thicknesses.

[0049] Advantage 3: During feeding, the outer surface of the short rod 163 fits with the arc surface at the top of the ejector post 164, and the long rod 161 is in a horizontal state under the action of the torsion spring 162 and contracts inside the placement groove 1431, without affecting the feeding action of the board.

[0050] Advantage 4: When clamping the board, through the upper pressing plate 142 and the lower pressing plate 143, the fixing action of the board in the vertical direction is realized, and at the same time, it is ensured that the center point of the board thickness, the axis of the drilling machine body 2, and the axis of the wood chip guiding sleeve 332 are all on the same horizontal plane; in the horizontal direction, when loading the board, the side surface of the board is attached to the outer surface of the special-shaped block 172, ensuring the parallelism of the processed board. When the lower pressing plate 143 moves upward, according to the specific width of the board, several groups of limit members 16 that are not blocked by the board will be in the unfolded state. Among them, the long rod 161 in the first limit member 16 is closer to the side surface of the board. While the lower pressing plate 143 moves upward, the special-shaped block 172 is affected by the spring 171, passes through the special-shaped groove 173, and pushes the board to fit against the surface of the long rod 161 in the first limit member 16. After clamping, the surface of the unfolded long rod 161 enters the through hole 1421 inside the upper pressing plate 142, and the outer surface of the long rod 161 fits against the side of the board away from the drilling machine body 2, playing a role of support and pressing, further ensuring the stability of the board during subsequent drilling and driving in round tenons, and preventing it from shifting in the horizontal direction.

[0051] Advantage 5: When unloading, the lower pressing plate 143 presses downward to trigger the ejector pin 164 to lift the long rod 161 and the short rod 163 to reset, and the special-shaped block 172 retracts under the action of the inclined surface, and can enter the next cycle without manual intervention. During loading and unloading, the lower pressing plate 143 will be at the lower position, and its upper surface is flush with the operating table, which can reduce the working intensity of the operator. When fixing the board, the placement groove 1431 opened on the surface of the lower pressing plate 143 can increase the friction force and ensure the stability of the board during vertical movement.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A side-hole doweling machine, characterized in that Including: A feeding part (1), the feeding part (1) includes a base (11), the base (11) is fixedly connected with a top plate (13) through a guide rod (12) fixed on its upper surface, and a centering part (14) for placing an external plate is arranged above the base (11); A drilling machine body (2) for drilling the side of an external plate; An assembling part (3), the assembling part (3) includes a frame (31) fixedly connected with the outer surface of the base (11), a sliding plate (311) is slidably connected to the frame (31) through a slide rail arranged on its upper surface, a connecting seat (32) is slidably connected to the sliding plate (311) through a guide rail arranged on its upper surface, one side of the connecting seat (32) is fixedly installed with the outer surface of the drilling machine body (2), and an assembling part (33) for driving a round tenon into a side hole is arranged on the side of the connecting seat (32) away from the drilling machine body (2); Wherein, the assembling part (33) includes a seat plate (331) fixedly connected with the outer surface of the connecting seat (32), a wood shaving guide sleeve (332) is fixedly connected to the upper surface of the seat plate (331), a material distribution conduit (334) is fixedly connected to the seat plate (331) through a mounting plate (333) arranged on its outer surface, a cavity (3321) is opened inside the wood shaving guide sleeve (332), the material distribution conduit (334) is designed to be inclined, a connecting pipe (335) is fixedly communicated inside the material distribution conduit (334), and the outer end of the connecting pipe (335) extends above the cavity (3321).

2. The side hole doweling machine according to claim 1, wherein: The seat plate (331) is provided with a cylinder through a connecting plate fixed on the side away from the base (11), the output end of the cylinder is fixedly connected with a guide shaft (336), and the end of the guide shaft (336) away from the cylinder extends into the cavity (3321).

3. The tenoner for side hole according to claim 1, characterized in that: A baffle is fixedly connected to the upper surface of the wood shaving guide sleeve (332), and there are two baffles which are symmetrically distributed on both sides of the connecting pipe (335).

4. A side-hole doweling machine according to claim 1, wherein: The centering part (14) includes side machine shells (141) fixed on the upper surface of the base (11), there are two side machine shells (141) which are symmetrically distributed on both sides of the base (11), a moving groove (1411) is opened inside the side machine shell (141), an upper pressing plate (142) and a lower pressing plate (143) are respectively slidably connected to the circumferential outer surface of the guide rod (12), the upper pressing plate (142) and the lower pressing plate (143) are symmetrically distributed on the upper and lower sides of the moving groove (1411), both the upper pressing plate (142) and the lower pressing plate (143) are rotatably connected with a connecting block (145) through a connecting rod (144) arranged on their outer sides, and the outer side of the connecting block (145) is slidably connected with the inner wall of the moving groove (1411); Wherein, the lower pressing plate (143) is provided with a limiting part (16) through a placing groove (1431) opened inside it.

5. The side hole doweling machine according to claim 4, characterized in that: The upper surface of the top plate (13) is provided with a driving seat (15). Inside the driving seat (15), a lead screw (151) is rotatably connected. One end of the lead screw (151) away from the driving seat (15) is rotatably connected to a support seat (152) fixedly connected to the upper surface of the top plate (13). A nut sleeve (153) is sleeved on the outer surface of the lead screw (151). A chute (131) is formed in the upper surface of the top plate (13). Below the nut sleeve (153), a support column (154) fixedly connected to the inner wall of the chute (131) and sliding therealong is provided. The lower surface of the support column (154) penetrates through the chute (131) and is fixedly connected to the upper surface of the connecting block (145).

6. The side hole doweling machine according to claim 4, wherein: The limiting member (16) includes a long rod (161). The long rod (161) is rotatably connected by a shaft rod fixed to the side surface of the inner wall of the placement groove (1431). A torsion spring (162) connected to the inside of the long rod (161) is sleeved on the outer circumference of the shaft rod. A short rod (163) is fixedly connected to the outer surface of the long rod (161). Inside the placement groove (1431), a top column (164) fixedly connected to the upper surface of the base (11) is provided. The top of the top column (164) is designed with an arc that fits the outer surface of the short rod (163).

7. The tenoner for side holes according to claim 6, characterized in that: A number of groups of the placement grooves (1431) are provided. Each group of the placement grooves (1431) has multiple ones. Through holes (1421) are formed in the upper pressing plate (142). The inner wall surface of the through holes (1421) is close to the outer surface of the long rod (161).

8. The side hole doweling machine according to claim 6, characterized in that: The base (11) is fixedly connected to a fixed rod (17) through a receiving cavity (111) formed on one side thereof close to the frame (31). A spring (171) connected to the side surface of the inner wall of the receiving cavity (111) is sleeved on the outer surface of the fixed rod (17). On the side close to the frame (31), the spring (171) is connected to a special-shaped block (172) slidably connected to the outer surface of the fixed rod (17). The side of the special-shaped block (172) close to the spring (171) is designed with an inclined surface. An irregular groove (173) that fits the inclined surface of the special-shaped block (172) is formed on one side of the lower pressing plate (143) close to the frame (31).

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