Side hole tenoner

Abstract

This invention relates to the field of wood processing technology and discloses a side-hole dovetailing machine, including a feeding section, which includes a base. The base is fixedly connected to a top plate via a guide rod fixed to its upper surface. A centering component for placing external boards is provided above the base. A drilling machine body is used to drill holes in the sides of the external boards. This side-hole dovetailing machine effectively solves the problem in the prior art where, after drilling holes in the sides of the boards, manual hand-held dovetails are used to hammer them into the side holes one by one. Due to significant individual differences in manual operation, the quality of the dovetails after being driven into the side holes is inconsistent, resulting in problems such as loose fit between the dovetail and the side hole of the board, inconsistent driving depth, or tilting. This affects the overall quality and performance of the product, leading to low production efficiency and an increased defect rate in spliced ​​board products.

Description

Technical Field

[0001] This invention relates to the field of wood processing technology, specifically to a side-hole dowel machine. Background Technology

[0002] Dovetail joint is a widely used assembly and connection method for modern panel furniture. It uses round wooden connectors and precise hole matching and fixing to achieve a firm connection between boards. The dovetail can withstand a certain amount of tensile and shear forces, ensuring that the spliced ​​parts are not easy to separate during use.

[0003] In existing technologies, after drilling holes in the side of the wooden board, the round tenons are usually manually held and hammered into the side holes one by one. Due to the large individual differences in manual operation, the quality of the round tenons after being driven into the side holes is inconsistent. This can result in the round tenons not fitting tightly with the side holes of the wooden board, inconsistent driving depth, or tilting, which in turn affects the quality and performance of the entire product, resulting in low production efficiency and an increased defect rate of spliced ​​wooden board products. Summary of the Invention

[0004] To address the aforementioned shortcomings of existing technologies, this invention provides a side-hole dowel machine, which effectively solves the problem that in existing technologies, after drilling holes on the side of the wooden board, the round tenons are often manually held and hammered into the side holes one by one. Due to significant individual differences in manual operation, the quality of the round tenons after being driven into the side holes is inconsistent, resulting in problems such as loose fit between the round tenon and the side hole of the wooden board, inconsistent driving depth, or tilting. This affects the overall quality and performance of the product, leading to low production efficiency and an increased defect rate in spliced ​​wooden board products.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This invention provides a side-hole dowel machine, comprising:

[0007] The loading section includes a base, a top plate is fixedly connected to the base by a guide rod fixed to its upper surface, and a centering component for placing external plates is provided above the base.

[0008] The drilling rig body is used to drill holes in the sides of external panels;

[0009] The assembly part includes a frame fixedly connected to the outer surface of the base. The frame is slidably connected to a sliding plate via a slide rail on its upper surface. The sliding plate is slidably connected to a connecting seat via a guide rail on its upper surface. One side of the connecting seat is fixedly installed to the outer surface of the drilling rig body. The side of the connecting seat away from the drilling rig body is provided with an assembly for driving a round tenon into a side hole.

[0010] The assembly includes a base plate fixedly connected to the outer surface of the connecting seat. A wood shaving guide sleeve is fixedly connected to the upper surface of the base plate. A material distribution guide is fixedly connected to the base plate through an mounting plate on its outer surface. A cavity is opened inside the wood shaving guide sleeve. The material distribution guide is designed with an inclination. A connecting pipe is fixedly connected inside the material distribution guide, and the outer end of the connecting pipe extends to the top of the cavity.

[0011] Furthermore, the seat plate is equipped with a cylinder via a connecting plate fixed to the side away from the base. The output end of the cylinder is fixedly connected to a guide shaft, and the end of the guide shaft away from the cylinder extends into the cavity.

[0012] Furthermore, a baffle is fixedly connected to the upper surface of the wood shaving guide sleeve, and two baffles are provided and symmetrically distributed on both sides of the connecting pipe.

[0013] Furthermore, the centering component includes a side housing fixed to the upper surface of the base. Two side housings are provided and symmetrically distributed on both sides of the base. A shifting groove is opened inside the side housing. An upper pressure plate and a lower pressure plate are slidably connected to the outer circumference of the guide rod. The upper pressure plate and the lower pressure plate are symmetrically distributed on the upper and lower sides of the shifting groove. The upper pressure plate and the lower pressure plate are rotatably connected to a connecting block by a connecting rod provided on their outer side. The outer side of the connecting block is slidably connected to the inner wall of the shifting groove.

[0014] The lower pressure plate is equipped with a limiting member through a placement groove formed inside it.

[0015] Furthermore, a drive seat is provided on the upper surface of the top plate, and a lead screw is rotatably connected inside the drive seat. A support seat that is fixedly connected to the upper surface of the top plate is rotatably connected to the end of the lead screw away from the drive seat. A nut sleeve is fitted on the outer surface of the lead screw. A sliding groove is opened on the upper surface of the top plate. A support column that slides against the inner wall of the sliding groove is fixedly connected below the nut sleeve. The lower surface of the support column passes through the sliding groove and is fixedly connected to the upper surface of the connecting block.

[0016] Furthermore, the limiting component includes a long rod, which is rotatably connected by a shaft fixed to the side of the inner wall of the placement groove. A torsion spring connected to the inside of the long rod is sleeved on the outer circumference of the shaft. 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 provided inside the placement groove. The top of the top column adopts an arc design that fits the outer surface of the short rod.

[0017] Furthermore, the placement slots are provided in several groups, and each group of placement slots is provided with multiple slots. The upper pressure plate has through holes inside, and the inner wall surface of the through holes is close to the outer surface of the long rod.

[0018] Furthermore, the base is fixedly connected to a fixing rod through a receiving cavity opened on its side near the frame. The outer surface of the fixing rod is fitted with a spring that is connected to the inner wall side of the receiving cavity. The side of the spring near the frame is connected to a shaped block that is slidably connected to the outer surface of the fixing rod. The side of the shaped block near the spring is designed with an inclined surface. The side of the lower pressure plate near the frame is provided with a shaped groove that fits against the inclined surface of the shaped block.

[0019] The technical solution provided by this invention has the following advantages compared with the prior art:

[0020] This invention comprises a centering component, a drilling rig body, and assembly parts. Within the centering component, an upper pressure plate, a lower pressure plate, a connecting block, and a connecting rod together form a parallelogram mechanism, converting horizontal displacement into vertical symmetrical displacement. This ensures that the plane containing the center axis of boards of varying thicknesses always coincides with the drill bit axis, resolving the issue of hole height deviation in boards of different thicknesses. This guarantees the strength and stability of the connection point during drilling and driving in the dovetail, preventing connection point misalignment and strength reduction caused by differences in board thickness. From board loading, positioning, drilling, to automatic dovetail feeding and driving, and finally to unloading and resetting, this invention eliminates the need for manual intervention throughout the entire process, increasing automation, reducing the complexity and labor intensity of manual operations, and improving production efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0022] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the assembly, frame, sliding plate, and connecting seat structure according to an embodiment of the present invention;

[0024] Figure 3 This is a cross-sectional structural diagram of the base according to an embodiment of the present invention;

[0025] Figure 4 This is a cross-sectional structural diagram of the frame according to an embodiment of the present invention;

[0026] Figure 5 This is an embodiment of the present invention. Figure 4 A magnified structural diagram of part A in the middle;

[0027] Figure 6 This is an embodiment of the present invention. Figure 4A magnified structural diagram of section B in the middle;

[0028] Figure 7 This is a schematic diagram of the separated structure of the base, side housing, and lower pressure plate according to an embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the long rod, short rod, torsion spring, and top column in an embodiment of the present invention;

[0030] Figure 9 This is a schematic diagram of the separation structure of the irregular block and the lower pressure plate in an embodiment of the present invention.

[0031] The labels in the diagram represent: 1. Feeding section; 11. Base; 111. Receiving cavity; 12. Guide rod; 13. Top plate; 131. Slide groove; 14. Centering component; 141. Side housing; 1411. Transfer groove; 142. Upper pressure plate; 1421. Through hole; 143. Lower pressure plate; 1431. Placement groove; 144. Connecting rod; 145. Connecting block; 15. Drive seat; 151. Lead screw; 152. Support seat; 153. Nut sleeve; 154. Support column; 16. 1. Limiting component; 161. Long rod; 162. Torsion spring; 163. Short rod; 164. Top column; 17. Fixing rod; 171. Spring; 172. Irregular block; 173. Irregular groove; 2. Drilling machine body; 3. Assembly part; 31. Frame; 311. Sliding plate; 32. Connecting seat; 33. Assembly parts; 331. Seat plate; 332. Wood chip guide sleeve; 3321. Cavity; 333. Mounting plate; 334. Material distribution guide; 335. Connecting pipe; 336. Guide shaft. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] The present invention will be further described below with reference to embodiments. Example:

[0034] Please see Figures 1-9 The present invention provides a technical solution: a side-hole dovetailing machine, comprising:

[0035] The loading section 1 includes a base 11, a top plate 13 is fixedly connected to the base 11 by a guide rod 12 fixed to its upper surface, and a centering component 14 for placing external plates is provided above the base 11.

[0036] Drilling rig body 2 is used to drill holes in the sides of external plates;

[0037] Assembly part 3 includes a frame 31 fixedly connected to the outer surface of base 11. The frame 31 is slidably connected to a sliding plate 311 via a slide rail on its upper surface. The sliding plate 311 is slidably connected to a connecting seat 32 via a guide rail on its upper surface. One side of the connecting seat 32 is fixedly installed to the outer surface of the drilling machine body 2. The side of the connecting seat 32 away from the drilling machine body 2 is provided with an assembly 33 for driving a round bar tenon into a side hole. The movement directions of the slide rail and the guide rail are perpendicular.

[0038] The assembly 33 includes a base 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 base plate 331. A material distribution conduit 334 is fixedly connected to the base plate 331 through a mounting plate 333 on its outer surface. A cavity 3321 is opened inside the wood shaving guide sleeve 332. The material distribution conduit 334 adopts an inclined design. A connecting pipe 335 is fixedly connected inside the material distribution conduit 334, and the outer end of the connecting pipe 335 extends to the top of the cavity 3321.

[0039] A cylinder is mounted on the base plate 331 via a connecting plate fixed to the side of the base plate 11 away from the base plate 11. A guide shaft 336 is fixedly connected to the output end of the cylinder. The end of the guide shaft 336 away from the cylinder extends into the cavity 3321.

[0040] A baffle is fixedly connected to the upper surface of the wood shaving guide sleeve 332. Two baffles are provided and symmetrically distributed on both sides of the connecting pipe 335.

[0041] The centering component 14 includes a side housing 141 fixed to the upper surface of the base 11. Two side housings 141 are provided and symmetrically distributed on both sides of the base 11. The side housing 141 has a sliding groove 1411 inside. The outer circumferential surface of the guide rod 12 is slidably connected to an upper pressure plate 142 and a lower pressure plate 143. The upper pressure plate 142 and the lower pressure plate 143 are symmetrically distributed on the upper and lower sides of the sliding groove 1411. The upper pressure plate 142 and the lower pressure plate 143 are rotatably connected to a connecting block 145 through a connecting rod 144 provided on their outer side. The outer side of the connecting block 145 is slidably connected to the inner wall of the sliding groove 1411.

[0042] The lower pressure plate 143 is provided with a limiting member 16 through a placement groove 1431 formed inside it.

[0043] A drive seat 15 is provided on the upper surface of the top plate 13. A lead screw 151 is rotatably connected inside the drive seat 15. A support seat 152, which is fixedly connected to the upper surface of the top plate 13, is rotatably connected to the end of the lead screw 151 away from the drive seat 15. A nut sleeve 153 is fitted on the outer surface of the lead screw 151. A sliding groove 131 is provided on the upper surface of the top plate 13. A support column 154, which slides against the inner wall of the sliding groove 131, is fixedly connected below the nut sleeve 153. The lower surface of the support column 154 passes through the sliding groove 131 and is fixedly connected to the upper surface of the connecting block 145.

[0044] The limiting component 16 includes a long rod 161, which is rotatably connected by a shaft fixed to 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. A short rod 163 is fixedly connected to the outer surface of the long rod 161. A top column 164 fixedly connected to the upper surface of the base 11 is provided inside the placement groove 1431. The top of the top column 164 adopts an arc design that fits against the outer surface of the short rod 163.

[0045] The placement slots 1431 are provided in several groups, and each group of placement slots 1431 is provided with multiple slots. The upper pressure plate 142 has through holes 1421 inside, and the inner wall surface of the through hole 1421 is close to the outer surface of the long rod 161.

[0046] The base 11 is fixedly connected to a fixing rod 17 through a receiving cavity 111 opened on the side of the base 11 near the frame 31. A spring 171 connected to the inner wall of the receiving cavity 111 is sleeved on the outer surface of the fixing rod 17. A shaped block 172 slidably connected to the outer surface of the fixing rod 17 is connected to the side of the spring 171 near the frame 31. The side of the shaped block 172 near the spring 171 is designed with a slope. A shaped groove 173 that fits the slope of the shaped block 172 is opened on the side of the lower pressure plate 143 near the frame 31. The fixing rod 17 passes through the interior of the shaped block 172.

[0047] The top surface of the top plate 13 is fixedly connected to the top frame. The outer surface of the top frame is equipped with a vibratory plate for feeding the round bar tenon. The end of the material distribution guide 334 away from the connecting pipe 335 is provided with a feeding pipe that communicates with the inside of the vibratory plate. The side of the material distribution guide 334 closer to the base 11 is lower.

[0048] The process of centering and loading the wooden boards:

[0049] When connecting round wooden doves to holes in wooden boards, an interference fit is often used to increase the friction and connection strength at the joint, so that two or more wooden boards can be firmly connected together. The holes in the wooden boards are mostly made in the middle of the board thickness. Since the height of the holes varies for boards of different thicknesses, it is easy to cause assembly errors, making it impossible to accurately drive the wooden doves into the side holes of the board, affecting the splicing quality and the overall structural stability.

[0050] 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, which 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 pressure plate 143 is in contact with the upper surface of the base 11, and the upper surface of the upper pressure 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 pressure plate 143. In the placement groove 1431, the lower surface of the short rod 163 is in contact with the arc surface of the top of the top column 164. The torsion spring 162 on the outer surface of the shaft is in a compressed state. The long rod 161 is in a horizontal placement state. The highest point of both the long rod 161 and the short rod 163 in this state is lower than the upper surface of the base 11. The limiting member 16 is in a retracted state inside the placement groove 1431, which does not affect the normal loading and unloading of the plate.

[0051] The irregular groove 173 has a sloping design on the side near the drill body 2. The sloping surface of the irregular groove 173 fits tightly with the sloping surface of the outer side of the irregular block 172, and the slopes of the two surfaces are the same. The spring 171 has a strong design. In this state, the spring 171 is in a stretched state, and the irregular block 172 is within its stroke range and is closest to the drill body 2. The height of the irregular block 172 is higher than the thickness of the lower pressure plate 143. An operating table is provided on the side of the base 11 away from the frame 31. The upper surface of the operating table is flush with the lower surface of the lower pressure plate 143 in the initial state. The operator moves the wooden board from the operating table to the upper surface of the lower pressure plate 143 for loading. When loading, the outer side of the wooden board is pressed against the surface of the irregular block 172 away from the drill body 2, so that the side of the wooden board is parallel to the outer end of the drill body 2, thus completing the loading step of the wooden board.

[0052] The process of aligning the center point of the wooden board thickness with the axis of the drill body 2:

[0053] The drive seat 15 is internally connected to the lead screw 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 screw 151, the nut sleeves 153 on both sides move in opposite directions. Taking the lead screw 151 on the left as an example, when the lead screw 151 rotates, the support column 154, which is fixedly connected to the outer surface of the nut sleeve 153, slides to the left inside the slide groove 131, and drives the connecting block 145 fixed at its bottom to move to the left inside the shift groove 1411. The distance between the left connecting block 145 and the side of the upper pressure plate 142 in the horizontal direction increases.

[0054] Correspondingly, the connecting block 145 on the right slides to the right in the horizontal direction. The interiors of the upper pressure plate 142 and the lower pressure plate 143 are slidably connected to the outer surface of the vertical guide rod 12. Four guide rods 12 are arranged in an array. Under the action of the guide rods 12, the upper pressure plate 142 and the lower pressure plate 143 can only slide in the vertical direction. As the distance between the two connecting blocks 145 increases, the upper and lower sets of connecting rods 144 on their outer sides gradually change from an inclined state to a horizontal state. The upper pressure plate 142 and the lower pressure plate 143 are pulled by the connecting rods 144. The upper pressure plate 142 gradually moves downward, and the lower pressure plate 143, supporting the wooden board, gradually moves upward. The two move towards each other in the vertical direction.

[0055] As the lower pressure plate 143 gradually moves upward, its lower surface begins to detach from the upper surface of the base 11. Vertically, the distance between the shaft in the placement groove 1431 and the top of the top column 164 gradually increases. Under the action of the torsion spring 162, the long rod 161 and the short rod 163 rotate synchronously around the shaft (the long rod 161 and short rod 163 are designed as a single piece). The long rod 161 gradually tilts and flips upward from its initial horizontal state, with its outer end protruding from the upper surface of the lower pressure plate 143. Multiple sets of placement grooves 1431 are provided, each set having multiple grooves in the left-right direction. These multiple sets of placement grooves 1431 are arranged in a staggered pattern along the front-back direction, which can restrict the width of plates within a certain range. During the upward movement of the lower pressure plate 143, the portion of the placement groove 1431 covered by the wooden board has a torsion spring 162 in the limiting member 16 with a torque less than the weight of the wooden board, and remains in a contracted state, with the outer end of the long rod 161 not exceeding the lower surface of the lower pressure plate 143; while the portion of the placement groove 1431 not covered by the wooden board has the limiting member 16 in an extended state, and under the action of the torsion spring 162, the outer end of the long rod 161 protrudes from the upper surface of the lower pressure 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.

[0056] After the board is placed, the first limiting member 16 is a set of limiting members 16 that protrudes from the outer surface of the placement groove 1431 and is closest to the side of the board. Since the multiple placement grooves 1431 are designed intermittently 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.

[0057] After the lower pressure plate 143 moves upward a short distance, part of the long rod 161 protrudes from the upper surface of the lower pressure plate 143. At the same time, the irregular groove 173 in the lower pressure plate 143 also moves upward synchronously. Under the pull of the spring 171, the irregular block 172 moves along the outer surface of the fixed rod 17 away from the drill body 2 (i.e., in the direction of the wooden board). At this time, the top of the irregular block 172 is still higher than the lower surface of the lower pressure plate 143. The side of the irregular block 172 away from the drill body 2 is in contact with the side 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 irregular block 172 away from the drill body 2 (the depth of the irregular groove 173 in the front-back direction is greater than the distance between the two adjacent sets of placement grooves 1431). Thus, the position of the wooden board on the plane is defined.

[0058] As the lower pressure plate 143 continues to support the wooden board as it moves upward, the upper surface of the lower pressure plate 143 gradually approaches the top of the irregular block 172 until the lower pressure plate 143 is higher than the irregular block 172. After the irregular block 172 loses the pressure of the irregular groove 173, it moves away from the drill body 2 inside the receiving cavity 111 under the action of the spring 171. After the elastic potential energy of the spring 171 is restored, the irregular block 172 is in a contracted state.

[0059] Under the action of the drive seat 15, the upper pressure plate 142 and the lower pressure plate 143 continue to move towards each other until the lower surface of the upper pressure plate 142 is in contact with the upper surface of the sheet material. The drive seat 15 then stops and maintains this state, clamping the sheet material between the upper pressure plate 142 and the lower pressure plate 143. The connecting rod 144, the upper pressure plate 142, the lower pressure plate 143, and the connecting block 145 form a parallelogram mechanism. When the connecting block 145 moves horizontally, the vertical displacement of the upper pressure plate 142 and the lower pressure plate 143 remains equal. When the upper pressure plate 142 moves downward and the lower pressure plate 143 moves upward, the displacement of each of them in opposite directions accounts for half of the total displacement, thus ensuring that the center of the sheet material thickness is always at the midpoint of the stroke of the upper pressure plate 142 and the lower pressure plate 143. Including the first limiting member 16, multiple sets of long rods 161 protruding from the outer surface of the placement groove 1431 are all in a vertical state. When the upper pressure plate 142 and the lower pressure plate 143 approach each other, the top of the vertical long rod 161 enters the through hole 1421 opened inside the upper pressure plate 142.

[0060] The process of drilling holes in a wooden board:

[0061] The plane containing the central axis of the drill body 2 coincides with the plane containing the central axis of the cylindrical cavity 3321 in the wood guide sleeve 332. Since the centerline of the drill body 2 coincides with the center of the upper pressure plate 142 and the lower pressure plate 143 in the initial state, the horizontal plane of the final plate thickness center will inevitably coincide with the centerline of the drill body 2, so as to keep the center point constant when drilling and driving in the round dovetails for plates of different thicknesses.

[0062] The wooden board is clamped in the vertical direction by the upper pressure plate 142 and the lower pressure plate 143. In the horizontal direction, the side of the wooden board away from the drill body 2 is in contact with the outer surface of the long rod 161 in the first limiting member 16, so as to prevent the wooden board from shifting on the horizontal plane due to excessive impact force during subsequent drilling and driving in of the round dovetail.

[0063] Based on visual sensing, the connecting seat 32 slides to a suitable position via the guide rail on the upper surface of the sliding plate 311 to determine the distance between the drill body 2 and the side of the wooden board. Starting from one side, the guide rail is activated, and the sliding plate 311 slides left and right on the horizontal plane. During the sliding process, the drill body 2 is activated to drill holes in the side of the wooden board. After completion, multiple side holes are evenly opened on the side of the wooden board.

[0064] The process of driving the dovetail into the opposite hole:

[0065] The top surface of the top plate 13 is fixedly connected to the top frame. The outer surface of the top frame is equipped with a vibratory feeder for feeding round tenons. The end of the material distribution guide 334 away from the connecting pipe 335 is provided with a feeding pipe that communicates with the inside of the vibratory feeder. Multiple round tenons flow into the feeding pipe in sequence through the vibratory feeder and enter the inside of the material distribution guide 334.

[0066] The material distribution guide 334 is designed with an inclination. The side of the material distribution guide 334 closest to the base 11 is lower. The round tenon can naturally reach the interior of the connecting pipe 335 under the action of gravity. The lower surface of the connecting pipe 335 has a notch. After the round tenon reaches the notch, it will fall into the cavity 3321 in the wood shaving guide sleeve 332. The output end of the cylinder is fixedly connected to the guide shaft 336. When the cylinder is started, it drives the only round tenon in the cavity 3321 to push towards the wood board, so that part of the round tenon is inserted into the side hole. The sliding plate 311 moves left and right above the frame 31 through the slide rail, so that multiple side holes are gradually driven into the round tenon.

[0067] The process of cutting wood boards:

[0068] The drive seat 15 drives the lead screw 151 to rotate, causing the nut sleeves 153, support columns 154, and connecting blocks 145 on both sides to move in opposite directions. As the connecting blocks 145 on both sides gradually approach each other, the upper pressure plate 142 gradually moves vertically upward, while the lower pressure plate 143 gradually moves vertically downward. The surface of the wooden board separates from the lower surface of the lower pressure plate 143, and the long rod 161 protruding from the upper surface of the lower pressure plate 143 also separates from the inside of the through hole 1421.

[0069] The long rod 161 protruding from the surface of the placement groove 1431 is in a vertical state under the action of the torsion spring 162. As the lower pressure plate 143 continues to press down, the surface of the inclined short rod 163 will contact the arc surface at the top of the top column 164. As the lower pressure plate 143 continues to press down, the long rod 161 and the short rod 163 rotate around the shaft under the lifting action of the top column 164, so that the long rod 161 and the short rod 163 are both inside the placement groove 1431. The multiple limiting members 16 are in a retracted state again, which does not affect the normal feeding of the plate.

[0070] At the same time, when the lower surface of the lower pressure plate 143 approaches the upper surface of the base 11, the inclined surface of the irregular groove 173 fits against the irregular block 172. As the lower pressure plate 143 continues to move downward, it will push the irregular block 172 to slide away from the wooden board. The spring 171 is stretched again until the lower surface of the lower pressure plate 143 fits against the upper surface of the base 11. The loading part 1 returns to its initial state, and the operator can remove the wooden board from the upper surface of the lower pressure plate 143 to complete the unloading action.

[0071] In summary, this side-hole tenoning machine has the following advantages:

[0072] Advantage 1: From board loading, positioning, drilling to automatic conveying and driving in of round dowels, and then to unloading and resetting, the entire process requires no manual intervention, which improves the degree of automation, reduces the complexity and labor intensity of manual operation, and improves production efficiency.

[0073] Advantage 2: The centering component 14, consisting of the upper pressure plate 142, lower pressure plate 143, connecting block 145, and connecting rod 144, forms a parallelogram mechanism, converting horizontal displacement into vertical symmetrical displacement. This ensures that the plane containing the center axis of boards of different thicknesses always coincides with the drill bit axis, resolving the issue of hole height deviation in boards of different thicknesses. This guarantees the strength and stability of the connection point during drilling and driving in the dovetail, avoiding connection point misalignment and strength reduction caused by differences in board thickness.

[0074] Thirdly, during feeding, the outer surface of the short rod 163 fits against the arc-shaped top of the top column 164, while the long rod 161 remains horizontal under the action of the torsion spring 162, retracting into the interior of the placement groove 1431 without affecting the feeding action of the board.

[0075] Fourthly, when clamping the board, the upper pressure plate 142 and the lower pressure plate 143 achieve vertical fixation of the board, while also ensuring that the center point of the board thickness is on the same horizontal plane as the axis of the drill body 2 and the axis of the wood shaving guide sleeve 332. In the horizontal direction, when loading, the side of the board is brought into contact with the outer surface of the shaped block 172, ensuring the parallelism of the processed board. When the lower pressure plate 143 moves upward, depending on the specific width of the board, several sets of limiting members 16 that are not covered by the board will be in an unfolded state. Among them, the long rod 161 in the first limiting member 16 is closer to the side of the board. At the same time as the lower pressure plate 143 moves upward, the shaped block 172, under the influence of the spring 171, passes through the shaped groove 173 and pushes the board towards the surface of the long rod 161 in the first limiting member 16. After clamping, the surface of the extended rod 161 enters the through hole 1421 inside the upper pressure plate 142. The outer surface of the rod 161 is in contact with the side of the plate away from the drill body 2, which plays a supporting and pressing role, further ensuring the stability of the plate during subsequent drilling and driving in the round dovetail, and preventing it from shifting in the horizontal direction.

[0076] Fifthly, during material unloading, the lower pressure plate 143 presses down, triggering the top column 164 to lift the long rod 161 and short rod 163 back to their original positions. The irregular block 172 retracts under the action of the inclined plane, allowing the cycle to begin without manual intervention. During loading and unloading, the lower pressure plate 143 is positioned at the bottom, with its upper surface flush with the operating table, reducing the workload of the operators. When fixing the sheet material, the placement groove 1431 on the surface of the lower pressure plate 143 increases friction, ensuring the stability of the sheet material during vertical movement.

[0077] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A side-hole dowel drilling machine, characterized in that, include: The loading section (1) includes a base (11), and the base (11) is fixedly connected to a top plate (13) by a guide rod (12) fixed on its upper surface. A centering component (14) for placing external plates is provided above the base (11). The drilling rig body (2) is used to drill holes in the side of the outer plate; Assembly part (3), the assembly part (3) includes a frame (31) fixedly connected to the outer surface of the base (11), the frame (31) is slidably connected to a sliding plate (311) by a slide rail provided on its upper surface, the sliding plate (311) is slidably connected to a connecting seat (32) by a guide rail provided on its upper surface, one side of the connecting seat (32) is fixedly installed to the outer surface of the drilling machine body (2), and the side of the connecting seat (32) away from the drilling machine body (2) is provided with an assembly part (33) for driving the round bar tenon into the side hole; The assembly (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). A material distribution conduit (334) is fixedly connected to the seat plate (331) through a mounting plate (333) on its outer surface. A cavity (3321) is opened inside the wood shaving guide sleeve (332). The material distribution conduit (334) adopts an inclined design. A connecting pipe (335) is fixedly connected inside the material distribution conduit (334), and the outer end of the connecting pipe (335) extends to the top of the cavity (3321). The centering component (14) includes a side housing (141) fixed on the upper surface of the base (11). Two side housings (141) are provided and symmetrically distributed on both sides of the base (11). A shifting groove (1411) is opened inside the side housing (141). An upper pressure plate (142) and a lower pressure plate (143) are slidably connected to the outer circumference of the guide rod (12). The upper pressure plate (142) and the lower pressure plate (143) are symmetrically distributed on the upper and lower sides of the shifting groove (1411). The upper pressure plate (142) and the lower pressure plate (143) are rotatably connected to a connecting block (145) through a connecting rod (144) provided on their outer side. The outer side of the connecting block (145) is slidably connected to the inner wall of the shifting groove (1411). The lower pressure plate (143) is provided with a limiting member (16) through a placement groove (1431) inside it; the limiting member (16) includes a long rod (161), which is rotatably connected to a shaft fixed to the inner wall of the placement groove (1431), and a torsion spring (162) connected to the inside of the long rod (161) is sleeved on the outer circumference of the shaft. A short rod (163) is fixedly connected to the outer surface of the long rod (161). A top column (164) is provided inside the placement groove (1431) and fixedly connected to the upper surface of the base (11). The top of the top column (164) is connected to the outer surface of the short rod (163). With a matching arc design, the base (11) is fixedly connected to a fixing rod (17) through a receiving cavity (111) opened on the side of the base (31) near the frame (31). The outer surface of the fixing rod (17) is fitted with a spring (171) connected to the inner wall side of the receiving cavity (111). The side of the spring (171) near the frame (31) is connected to a shaped block (172) that is slidably connected to the outer surface of the fixing rod (17). The side of the shaped block (172) near the spring (171) adopts a bevel design. The side of the lower pressure plate (143) near the frame (31) is provided with a shaped groove (173) that fits the bevel of the shaped block (172).

2. The side-hole dovetailing machine according to claim 1, characterized in that: The seat plate (331) is equipped with a cylinder by means of a connecting plate fixed on 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).

3. The side-hole dovetailing machine according to claim 1, characterized in that: The upper surface of the wood shaving guide sleeve (332) is fixedly connected with a baffle, and two baffles are provided and symmetrically distributed on both sides of the connecting pipe (335).

4. A side-hole dovetailing machine according to claim 1, characterized in that: The top plate (13) has a drive seat (15) on its upper surface. A lead screw (151) is rotatably connected inside the drive seat (15). A support seat (152) is rotatably connected to the end of the lead screw (151) away from the drive seat (15) and fixedly connected to the upper surface of the top plate (13). A nut sleeve (153) is fitted on the outer surface of the lead screw (151). A sliding groove (131) is opened on the upper surface of the top plate (13). A support column (154) is fixedly connected below the nut sleeve (153) and slides against the inner wall of the sliding groove (131). The lower surface of the support column (154) passes through the sliding groove (131) and is fixedly connected to the upper surface of the connecting block (145).

5. A side-hole dovetailing machine according to claim 1, characterized in that: The placement slots (1431) are provided in several groups, and each group of placement slots (1431) is provided with multiple slots. The upper pressure plate (142) has a through hole (1421) inside, and the inner wall surface of the through hole (1421) is close to the outer surface of the long rod (161).

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