Automatic nailing machine

Abstract

The utility model relates to an automatic nailing machine, which comprises a turntable mechanism at least comprising a turntable capable of intermittently and circumferentially rotating; the workpiece fixing mechanism comprises workpiece fixing assemblies circumferentially arranged at the upper end of the rotary disc, and the three workpiece fixing assemblies are driven by intermittent rotation of the rotary disc mechanism to be switched among a downward pressing station, a nailing station and an operation station; when an inlet and an outlet of a workpiece groove of the workpiece fixing assembly are shielded, closing-up wrapping cloth on the workpiece is flattened on the workpiece, and a plurality of nail holes are formed in the upper end of the workpiece groove in the nailing direction of the workpiece. The downward pressing mechanism is used for pressing the workpiece into the workpiece groove; the nailing mechanism is used for moving into each nail hole in the arrangement direction of the nail holes for nailing; and the jacking mechanism is correspondingly arranged below the workpiece fixing assembly on the operation station and used for jacking the nailed workpiece out of the workpiece groove. According to the scheme, the whole nailing process is time-saving and labor-saving, and the nailing accuracy and the nailing efficiency are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of furniture processing technology, and in particular to an automatic nailing machine. Background Technology

[0002] In current furniture processing, after the fabric is wrapped around the outside of the wooden board, the fabric needs to be finished at the edges. The current method for finishing the edges is to flatten the fabric and nail it to the side panel of the bed to complete the processing of the side panel.

[0003] An existing automatic nailing machine, such as the Chinese utility model patent with publication number CN217861822U, discloses an automatic nailing machine for hard-covered wood boards. It includes a longitudinally arranged nailing bracket and a transversely arranged conveying bracket. The upper part of the nailing bracket is equipped with a detachable drive cylinder, and the head of the drive cylinder is equipped with a detachable nail gun. The top of the conveying bracket is equipped with several transmission rollers, and the inner edge of the conveying bracket is equipped with several rotatable side guide wheels. The bottom of the conveying bracket is equipped with a drive motor and a drive disc, with the drive disc extending beyond the transmission rollers. The nailing bracket is equipped with a detachable flange assembly. This automatic nailing machine for hard-covered wood boards produces neat and aesthetically pleasing nails, resulting in neat and wrinkle-free coverings for the hard-covered wood boards, making it particularly suitable for packaging large-sized hard-covered wood boards.

[0004] The automatic nailing machine in the above scheme has low nailing accuracy because the wood is not fixed by any device when nailing it. In addition, the automatic nailing machine has only one operating station and has to wait for the previous wood to be nailed before it can continue to the next wood, resulting in very low conveying efficiency and nailing efficiency. Summary of the Invention

[0005] To address the aforementioned problems, the present invention aims to provide an automatic nailing machine that can automatically press and fix the workpiece into the workpiece groove, thereby increasing the accuracy of nailing. Furthermore, it can automatically flatten the lining fabric on the workpiece, ensuring that the lining fabric is nailed to the workpiece during nailing, further improving accuracy. In addition, the nailing machine has three workstations, which can perform different tasks simultaneously, greatly improving both conveying and nailing efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An automatic nailing machine, characterized in that it comprises a turntable mechanism, a workpiece fixing mechanism, a pressing mechanism, a nailing mechanism, and a lifting mechanism, wherein,

[0008] A turntable mechanism, mounted on a mounting platform, includes at least a turntable that can rotate intermittently in the circumferential direction;

[0009] The workpiece fixing mechanism includes a workpiece fixing assembly circumferentially arranged on the upper end of the turntable. Three sets of workpiece fixing assemblies are driven by the intermittent rotation of the turntable mechanism to switch between the pressing station, the nailing station and the operating station respectively. The workpiece fixing assembly is provided with a workpiece groove for adapting and accommodating the workpiece. The upper end of the workpiece groove forms an inlet and outlet. The workpiece fixing assembly can open or cover the inlet and outlet of the workpiece groove. When the inlet and outlet of the workpiece groove is covered, the closing wrapping cloth on the workpiece is pressed flat on the workpiece. Multiple nail holes are formed at the upper end of the workpiece groove along the nailing direction of the workpiece.

[0010] The pressing mechanism is positioned above the workpiece fixing assembly at the pressing station and is used to press the workpiece into the workpiece groove.

[0011] The nailing mechanism is positioned above the workpiece fixing assembly at the nailing station and is used to move along the arrangement direction of the nail holes to nail into each nail hole.

[0012] The lifting mechanism is located below the workpiece fixing assembly on the operating station and is used to push the nailed workpiece out of the workpiece slot.

[0013] Preferably, the workpiece fixing assembly includes two sets of brackets arranged opposite each other and fixed on a turntable. A clamping plate is provided between the two sets of brackets, and the workpiece groove is formed between the clamping plate and one of the sets of brackets. The clamping plate is driven by a clamping cylinder to clamp the workpiece extending into the workpiece groove. The clamping cylinder is mounted on the bracket. Two baffles are slidably arranged above the two sets of brackets to press and overlap the fabric covering the upper end of the workpiece. The two baffles are staggered vertically, and the upper baffle has multiple nail holes along the length of the workpiece groove. Each of the two sets of brackets is provided with a pushing cylinder, and the moving end of the pushing cylinder is fixedly connected to the bottom of the baffle to drive the baffle to move inward and outward.

[0014] When the two baffles are close to each other and staggered to block the entrance and exit of the workpiece groove, the multiple nail holes on the upper baffle are above the entrance and exit, and the lower baffle has multiple notches at the corresponding positions of the multiple nail holes so that the nail gun can nail the covering fabric to the upper end of the workpiece; when the two baffles are far apart, the entrance and exit of the workpiece groove are opened.

[0015] Preferably, the two baffles include a first baffle and a second baffle. The first baffle has multiple nail holes, and the edge of the second baffle has multiple pressure strips along its length, with a notch formed between adjacent pressure strips. The bottom surface of the first baffle is higher than the top of the second baffle. When the inlet and outlet of the workpiece groove are blocked, the pressure strips press on the covering fabric at the workpiece closing point, and the notch is located directly below the nail holes.

[0016] Preferably, the bracket is provided with a guide rail, and a slider that slides with the guide rail is installed at the bottom of the baffle.

[0017] Preferably, a guide sleeve is installed on the bracket, and a guide rod is slidably fitted inside the guide sleeve, with the guide rod being fixedly connected to the clamping plate.

[0018] Preferably, the pressing mechanism includes a fixed frame fixed on the mounting platform and a pressing cylinder set on the fixed frame. A pressing rod is fixedly provided on the movable end of the pressing cylinder. The pressing rod is located directly above the workpiece groove. The pressing cylinder can drive the pressing rod to move downward to press the workpiece pre-loaded into the workpiece groove into the workpiece groove.

[0019] Preferably, sleeves are fixedly provided on both sides of the pressing cylinder on the fixing frame, and sliding rods are slidably passed through the sleeves, with the lower end of the sliding rods fixedly connected to the pressing rod.

[0020] Preferably, the nailing mechanism includes a support frame mounted on the mounting platform. The support frame has a mounting beam fixedly mounted above the workpiece fixing assembly. A servo motor, a slide rail, and a connecting bracket that slides with the slide rail are mounted on the mounting beam. The servo motor drives the connecting bracket to reciprocate along the slide rail. A nail gun is fixedly mounted on the connecting bracket, with the nozzle of the nail gun located above the nail hole.

[0021] Preferably, the servo motor drives the staple gun to move intermittently to nail, and the distance the staple gun moves between two movement intervals corresponds to the distance between two adjacent nail holes. During the movement interval, the staple gun nails into the nail hole.

[0022] Preferably, the lifting mechanism includes two sets of lifting components; the lifting components are located below the operating position and include a fixed bracket fixedly mounted on the mounting platform, a lifting cylinder mounted on the fixed bracket, and a push rod mounted on the moving end of the lifting cylinder. The turntable has through holes on both sides below the workpiece fixing component that communicate with the workpiece groove, and the through holes are correspondingly arranged with the push rod; the lifting cylinder can drive the push rod to push the upper end of the workpiece out of the workpiece groove through the through hole.

[0023] The present invention adopts the above technical solution and has the following beneficial effects:

[0024] ① The nailing machine has a workpiece groove, which can press the workpiece down and clamp it in the workpiece groove, improving the accuracy of nailing.

[0025] ② The two baffles of the nailing machine are staggered, which can flatten the fabric end from both sides, further improving the accuracy of nailing and ensuring that the fabric end is nailed to the workpiece. In addition, the notches on the two baffles correspond to the nail holes, so as not to affect the nailing effect.

[0026] ③ The nailing machine has three stations: one station for placing and collecting workpieces, one station for pressing down and fixing workpieces, and one station for nailing into nail holes. By performing different operations at the three stations, the efficiency of workpiece conveying and nailing can be greatly improved. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of an automatic nailing machine.

[0028] Figure 2 This is a schematic diagram of the lifting mechanism layout.

[0029] Figure 3 This is a top view schematic diagram of an automatic nailing machine.

[0030] Figure 4 A three-dimensional structural diagram of the workpiece fixing assembly.

[0031] Figure 5 This is a three-dimensional structural diagram of the workpiece fixing assembly from another perspective.

[0032] Figure 6 This is a schematic diagram of the arrangement of the pressure strips on the second baffle.

[0033] Figure 7 This is a cross-sectional schematic diagram of the workpiece fixing assembly at the operating station.

[0034] Figure 8 This is a cross-sectional schematic diagram of the workpiece fixing assembly on the pressing station.

[0035] Figure 9 This is a cross-sectional schematic diagram of the workpiece fixing assembly at the nailing station.

[0036] Figure 10 for Figure 9 Enlarged diagram of point A in the middle.

[0037] Figure 11 This is a three-dimensional structural diagram of the turntable mechanism.

[0038] Figure 12 This is a three-dimensional structural diagram of the nailing mechanism. Detailed Implementation

[0039] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0040] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] like Figures 1-9 An automatic nailing machine, as shown, includes a turntable mechanism, a workpiece fixing mechanism, a pressing mechanism, a nailing mechanism, and a lifting mechanism, wherein...

[0045] A turntable mechanism, mounted on a mounting platform 100, includes at least a turntable 1 that can rotate intermittently in the circumferential direction;

[0046] The workpiece fixing mechanism includes a workpiece fixing assembly circumferentially arranged on the upper end of the turntable 1. The three sets of workpiece fixing assemblies are driven by the intermittent rotation of the turntable mechanism to switch between the pressing station, the nailing station and the operating station respectively. The workpiece fixing assembly is provided with a workpiece groove 2 for adapting and accommodating the workpiece. The upper end of the workpiece groove 2 forms an inlet and outlet 200. The workpiece fixing assembly can open or cover the inlet and outlet 200 of the workpiece groove 2. When the inlet and outlet 200 of the workpiece groove 2 is covered, the closing wrapping cloth on the workpiece is pressed flat on the workpiece. The upper end of the workpiece groove 2 forms multiple nail holes 3 along the nailing direction of the workpiece.

[0047] The pressing mechanism is positioned above the workpiece fixing assembly on the pressing station and is used to press the workpiece into the workpiece groove 2.

[0048] The nailing mechanism is positioned above the workpiece fixing assembly at the nailing station and is used to move along the arrangement direction of the nail holes 3 to nail into each nail hole 3.

[0049] The lifting mechanism is located below the workpiece fixing assembly on the operating station and is used to push the nailed workpiece out of the workpiece slot 2.

[0050] In the above technical solution, the workpiece fixing component is used to fix the workpiece 400, which can improve the accuracy of nailing. The workpiece slot on it accommodates the workpiece. At the operating station, the inlet and outlet of the workpiece slot are opened. The operator inserts the lower part of the workpiece into the inlet and outlet of the workpiece slot. The turntable mechanism drives the workpiece fixing component to rotate to the pressing station. The pressing mechanism presses the workpiece into the workpiece slot. The workpiece fixing component covers the inlet and outlet of the workpiece slot. The closing fabric on the workpiece is flattened on the workpiece. Multiple nail holes are formed at the upper end of the workpiece slot along the nailing direction of the workpiece. The turntable rotates the workpiece fixing component to the nailing mechanism station. The nailing mechanism moves along the arrangement direction of the nail holes and nails into each nail hole. The nailed workpiece is rotated back to the original operating station along with the workpiece fixing component. The lifting cylinder pushes the workpiece out. The operator takes out the nailed workpiece. The three stations perform different operations, which can greatly improve the workpiece conveying and nailing efficiency. The entire nailing process only requires the worker to insert the lower part of the workpiece into the inlet and outlet of the workpiece slot, and then remove the workpiece after nailing. It is very convenient, saves time and effort, effectively reduces labor costs, and greatly improves nailing efficiency.

[0051] like Figure 4 , 5As shown in Figure 7, the workpiece fixing assembly includes two sets of brackets arranged opposite to each other and fixed on the turntable 1. A clamping plate 5 is provided between the two sets of brackets, and the workpiece groove 2 is formed between the clamping plate 5 and one of the sets of brackets. The clamping plate 5 is driven by a clamping cylinder 50 to clamp the workpiece extending into the workpiece groove. The clamping cylinder 50 is mounted on the bracket. Two baffles are slidably arranged above the two sets of brackets to press and overlap the fabric covering the upper end of the workpiece. The two baffles are staggered vertically, and the upper baffle has multiple nail holes 3 along the length direction of the workpiece groove 2. A pushing cylinder is provided on each of the two sets of brackets. The moving end of the pushing cylinder is fixedly connected to the bottom of the baffle to drive the baffle to move inward and outward.

[0052] When the two baffles are close to each other and cover the entrance and exit 200 of the workpiece groove 2, the multiple nail holes 3 on the upper baffle are above the entrance and exit 200, and the lower baffle has multiple notches 26 at the corresponding positions of the multiple nail holes 3 so that the nail gun can nail the covering fabric to the upper end of the workpiece; when the two baffles are far apart, the entrance and exit 200 of the workpiece groove 2 opens.

[0053] In the above scheme, the two supports of the workpiece fixing assembly include a first support 41 and a second support 42, which are fixed to the upper end of the turntable and can rotate with the turntable. A first pushing cylinder 71 and a second pushing cylinder 72 are respectively installed on the first support 41 and the second support 42. The first pushing cylinder 71 and the second pushing cylinder 72 are connected to the first baffle 61 and the second baffle 62 respectively through the first connecting block 81 and the second connecting block 82. The clamping plate is fixedly connected to the output end of the clamping cylinder 50 on the first support 41. When the lower end of the workpiece is placed into the inlet and outlet of the workpiece slot, the clamping cylinder drives the clamping plate to move slightly, so that the lower end of the workpiece can be squeezed into the inlet and outlet of the workpiece slot.

[0054] The two side cylinders can drive the two baffles to move respectively. The two baffles are staggered. When the two baffles are relatively far apart, the entrance and exit of the workpiece slot are opened, making it easy to pick up and put in the workpiece. When the two baffles are relatively closed, the notch and nail hole are positioned above the entrance and exit of the workpiece slot. The fabric covering the upper end of the workpiece is stacked and pressed tightly on the workpiece, which can improve the accuracy of nailing and ensure that the closing fabric is nailed to the workpiece.

[0055] It should be noted that a reference plate 600 is also fixed to the side end of the two supports. When the workpiece 400 is placed into the workpiece slot, the inner wall of the reference plate is used as a reference on one side to ensure the accuracy of nailing.

[0056] The first baffle 61 has multiple nail holes 3, and the edge of the second baffle 62 has multiple pressure strips 25 along its length, with recesses 26 formed between adjacent pressure strips 25; the bottom surface of the first baffle 61 is higher than the top surface of the second baffle 62, and when the inlet / outlet 200 of the workpiece groove 2 is blocked, such as Figure 9As shown, the pressure strip 25 presses against the covering fabric at the workpiece's closing point, and the notch 26 is positioned directly below the nail hole 3. In this design, as... Figure 10 As shown, when the inlet and outlet of the workpiece groove are blocked, the second baffle first moves to press the fabric 502 on one side of the closing edge onto the workpiece through the pressure strip. Then the first baffle moves until the nail hole is above the notch, and then presses the fabric 501 on one side of the closing edge onto the pressure strip. Since the notch 26 is directly below the nail hole 3, it can ensure that the fabric on both sides of the closing edge is hit onto the workpiece 400, thereby improving the accuracy of nailing and increasing the pass rate.

[0057] like Figures 4-5 As shown, the bracket is equipped with a guide rail 9, and a slider 10 that slides along the guide rail 9 is installed at the bottom of the baffle. In this technical solution, the cooperation between the guide rail and the slider makes the movement of the baffle more stable, ensuring the pressing effect on the fabric. A guide sleeve 12 is installed on the bracket, and a guide rod 11 is slidably fitted inside the guide sleeve 12. The guide rod 11 is fixedly connected to the clamping plate 5, thereby making the movement of the clamping plate more stable when clamping the workpiece, resulting in a more stable and reliable pressing effect on the workpiece, and ensuring the accuracy of nailing.

[0058] Furthermore, the pressing mechanism includes a fixed frame 13 fixed on the mounting platform 100 and a pressing cylinder 14 disposed on the fixed frame 13. A pressing rod 15 is fixedly disposed on the movable end of the pressing cylinder 14. The pressing rod 15 is located directly above the workpiece groove 2. The pressing cylinder 14 can drive the pressing rod 15 to move downward to press the workpiece pre-loaded into the workpiece groove 2 through the inlet / outlet 200 into the workpiece groove 2.

[0059] In this technical solution, the downward pressing cylinder can drive the pressing rod to move downward and completely press the workpiece that is only stuck in the workpiece slot inlet and outlet into the workpiece slot. Furthermore, the size design of the pressing rod is such that it can press to the edge of the workpiece slot when pressing down, without hitting the side baffles, ensuring that the workpiece is completely inserted into the workpiece slot.

[0060] In addition, multiple stripes are set horizontally on the inner wall of the clamping plate and the second baffle relative to the workpiece. When the workpiece is pressed into the workpiece groove, the stripes can smooth the cloth covering the workpiece surface, so that the excess cloth covering is smoothed to the upper end of the workpiece and then flattened, achieving a better effect of closing the cloth covering.

[0061] Furthermore, sleeves 16 are fixedly mounted on both sides of the pressing cylinder 14 on the fixing frame 13. A sliding rod 17 is slidably mounted on the sleeve 16, and the lower end of the sliding rod 17 is fixedly connected to the pressing rod 15. In this technical solution, the sliding rod is mounted on the sleeve and fixed to the pressing rod, thereby playing a role in stabilizing and guiding the pressing rod.

[0062] like Figures 1-3 as well as Figure 12As shown, the nailing mechanism includes a support frame 18 mounted on a mounting platform 100. A mounting beam 19 is fixedly mounted on the support frame 18 above the workpiece fixing assembly. A servo motor, a slide rail, and a connecting bracket 20 that slides with the slide rail are mounted on the mounting beam 19. The servo motor drives the connecting bracket 20 to reciprocate along the slide rail. A nail gun 300 is fixedly mounted on the connecting bracket 20, with the nozzle of the nail gun 300 positioned above the nail hole 3. The servo motor drives the nail gun 300 to intermittently move and nail. The distance the nail gun 300 moves between two movement intervals corresponds to the distance between two adjacent nail holes 3. During the movement interval, the nail gun 300 nails into the nail hole 3. In this technical solution, the servo motor can drive the connecting bracket to reciprocate on the slide rail of the mounting beam, and the nail gun can move along with the connecting bracket on the mounting beam and nail into the nail hole under the drive of the servo motor. After nailing, the nail gun resets to await the next nailing operation. An infrared sensor is also installed on the connecting bracket, which can sense the nailing status in the nail hole when the nail gun and the connecting bracket are reset, ensuring that the nail is driven into the nail hole.

[0063] like Figure 2 and 11 As shown, the lifting mechanism includes two sets of lifting components. The lifting components are located below the operating station and include a fixed bracket 21 fixedly mounted on the mounting platform 100, a lifting cylinder 22 mounted on the fixed bracket 21, and a push rod 23 mounted on the moving end of the lifting cylinder 22. The turntable 1 has through holes 24 communicating with the workpiece groove 2 on both sides below the workpiece fixing component. The through holes 24 correspond to the push rods 23. The lifting cylinder 22 can drive the push rods 23 to push the upper end of the workpiece out of the inlet / outlet 200 of the workpiece groove 2 along the through holes 24. In this technical solution, the bottom surface of the workpiece groove is the upper surface of the turntable. Through holes are provided on the bottom surface of the workpiece groove. To ensure the lifting effect, four through holes are set at three positions on the turntable, two symmetrically arranged on each side. Each set of lifting components has two push rods. The push rods push into the through holes to push the workpiece out of the workpiece groove, which is very convenient for the operator to retrieve.

[0064] In this specific embodiment, to address the problems of low nailing accuracy, poor results, and low nailing efficiency in the existing furniture processing when covering the edges of wooden boards with fabric, the above-described automatic nailing machine is used. This nailing machine has a workpiece groove, which can press down and firmly hold the workpiece in the groove, improving nailing accuracy. The two baffles of the nailing machine are staggered, which can flatten the fabric-covered edge from both sides, further improving nailing accuracy and ensuring that the fabric-covered edge is nailed to the workpiece. Furthermore, the notches on the two baffles correspond to the nail holes, thus not affecting the nailing effect. The nailing machine has three stations: the operating station for placing and retrieving the workpiece, the pressing station for pressing and fixing the workpiece, and the nailing station for driving nails into the nail holes. By performing different tasks at these three stations, the efficiency of workpiece transportation and nailing can be greatly improved.

[0065] The specific operation of the nailing machine in this case is as follows:

[0066] When the nailing machine is running, the clamping cylinder of the workpiece fixing component on the operating station loosens the clamping plate. The operator aligns the workpiece with the cloth covering with the reference plate and squeezes it into the inlet and outlet of the workpiece groove. The turntable rotates, causing the workpiece fixing component to rotate to the pressing station. The pressing cylinder drives the pressure rod to move downward and press the workpiece into the workpiece groove. The second pushing cylinder drives the second baffle to move and block the inlet and outlet of the workpiece groove and flatten one side of the cloth covering 502. The other side of the first pushing cylinder drives the first baffle to move until the nail hole is above the notch. Then, the cloth covering 501 on the closed side is flattened on the pressure strip. The cloth coverings on both sides overlap and are pressed tightly. Since the notch 26 is directly below the nail hole 3, it does not affect the nailing effect. The turntable rotates, moving the workpiece fixing assembly to the nailing station. A servo motor drives the connecting bracket and its nail gun to move along the slide rail. The servo motor drives the nail gun to move intermittently into the nail holes, nailing the workpiece. After nailing, the nail gun resets and the nailing is checked. After nailing, the turntable rotates, moving the workpiece fixing assembly back to its original operating position. The push rod of the lifting cylinder enters the workpiece slot along the through hole, pushing the workpiece out. The worker then removes the nailed workpiece. The entire nailing process only requires the worker to insert the lower part of the workpiece into the workpiece slot's inlet / outlet, nail it, and then remove the workpiece. This saves time and effort, and significantly improves nailing accuracy and efficiency.

[0067] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0068] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. An automatic nailing machine characterized by: The utility model relates to a workpiece fixing device of a workpiece fixing device and a workpiece fixing device, and belongs to the technical field of workpiece fixing device. The rotating disc mechanism is arranged on the mounting table (100) and comprises at least a rotating disc (1) that can rotate circumferentially intermittently. The workpiece fixing mechanism comprises workpiece fixing assemblies arranged circumferentially on the upper end of the rotating disc (1), and three groups of workpiece fixing assemblies are driven by the intermittent rotation of the rotating disc mechanism to switch between the pressing station, the nailing station and the operating station respectively. The workpiece fixing assembly is provided with a workpiece groove (2) for accommodating the workpiece, and the upper end of the workpiece groove (2) forms an entrance (200). The workpiece fixing assembly can open or shield the entrance (200) of the workpiece groove (2). When the entrance (200) of the workpiece groove (2) is shielded, the closing cloth on the workpiece is flattened on the workpiece.

2. An automatic nailing machine according to claim 1, characterized in that: The upper end of the workpiece groove (2) is provided with a plurality of nail holes (3) along the nailing direction of the workpiece. The pressing mechanism is arranged above the workpiece fixing assembly at the nailing station and is used for moving nails into each nail hole (3) along the arrangement direction of the nail holes (3).

3. An automatic nailing machine according to claim 2, characterized in that: The lifting mechanism is arranged below the workpiece fixing assembly at the operating station and is used for lifting the nailing workpiece out of the workpiece groove (2). The workpiece fixing assembly comprises two pairs of supports arranged oppositely and fixed on the rotating disc (1), and a clamping plate (5) is arranged between the two pairs of supports. The clamping plate (5) and one of the supports form the workpiece groove (2), and the clamping plate (5) is driven by a clamping air cylinder (50) to clamp the workpiece inserted into the workpiece groove. The clamping air cylinder (50) is mounted on the support. The upper ends of the two pairs of supports are respectively provided with two baffles for overlapping and pressing the cloth covering the workpiece. The upper baffle is provided with a plurality of nail holes (3) along the length direction of the workpiece groove (2). The two pairs of supports are respectively provided with push air cylinders, and the moving ends of the push air cylinders are fixedly connected with the bottom of the baffle to drive the baffle to move inwardly and outwardly. When the two baffles are relatively close to each other and staggered above and below to shield the entrance (200) of the workpiece groove (2), the plurality of nail holes (3) on the upper baffle are above the entrance (200), and the lower baffle is provided with a plurality of notches (26) at positions corresponding to the plurality of nail holes (3) to facilitate the gun nail to nail the covering cloth on the upper end of the workpiece. When the two baffles are relatively far away from each other, the entrance (200) of the workpiece groove (2) is opened. The two baffles comprise a first baffle (61) and a second baffle (62). The bottom surface of the first baffle (61) is higher than the upper end of the second baffle (62), and when the entrance (200) of the workpiece groove (2) is shielded, the pressing strips (25) are above the covering cloth at the closing part of the workpiece, and the notches (26) are directly below the nail holes (3).

4. An automatic nailing machine according to claim 2, characterized in that: The support is provided with a guide rail (9), and the bottom of the baffle is provided with a sliding block (10) in sliding fit with the guide rail (9).

5. An automatic nailing machine according to claim 2, characterized in that: The support is provided with a guide sleeve (12), and a guide rod (11) is slidably arranged in the guide sleeve (12) and fixedly connected with the clamping plate (5).

6. An automatic nailing machine according to claim 2, characterized in that: The lower pressing mechanism comprises a fixing frame (13) fixed on the mounting table (100) and a lower pressing cylinder (14) arranged on the fixing frame (13), and a pressing rod (15) is fixedly arranged on a movable end of the lower pressing cylinder (14), the pressing rod (15) is located directly above the workpiece groove (2), and the lower pressing cylinder (14) can drive the pressing rod (15) to move downward to press the workpiece preloaded at the entrance (200) of the workpiece groove (2) into the workpiece groove (2).

7. An automatic nailing machine according to claim 6, characterized in that: The fixing frame (13) is fixedly provided with a sleeve (16) on both sides of the lower pressing cylinder (14), and a sliding rod (17) is slidably arranged on the sleeve (16), and a lower end of the sliding rod (17) is fixedly connected with the pressing rod (15).

8. An automatic nailing machine according to claim 2, characterized in that: The nailing mechanism comprises a support frame (18) arranged on the mounting table (100), and the support frame (18) is fixedly provided with a mounting beam (19) above the workpiece fixing assembly, the mounting beam (19) is provided with a servo motor, a sliding rail and a connecting support (20) in sliding fit with the sliding rail, the servo motor drives the connecting support (20) to reciprocatingly move along the sliding rail, the connecting support (20) is fixedly provided with a nailing gun (300), and a muzzle of the nailing gun (300) is located above the nail hole (3).

9. An automatic nailing machine according to claim 8, characterized in that: The servo motor drives the nailing gun (300) to intermittently move to nail, the distance of the nailing gun (300) moved between two moving intervals corresponds to the distance between two adjacent nail holes (3), and the nailing gun (300) nails into the nail hole (3) during the moving interval.

10. An automatic nailing machine according to claim 2, characterized in that: The jacking mechanism comprises two groups of jacking assemblies, and each jacking assembly comprises a fixed support (21) fixed on the mounting table (100), a jacking cylinder (22) arranged on the fixed support (21) and a push rod (23) arranged on a movable end of the jacking cylinder (22), the rotating disc (1) is provided with a through hole (24) below the workpiece fixing assembly and in communication with the workpiece groove (2), and the through hole (24) is correspondingly arranged with the push rod (23); the jacking cylinder (22) can drive the push rod (23) to jackingly enter the workpiece groove (2) along the through hole (24) to push the upper end of the workpiece to extend out of the entrance (200) of the workpiece groove (2).

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