Numerical control milling type multi-station machining and positioning device for furniture hardware

Abstract

The invention relates to the technical field of hardware machining, in particular to a furniture hardware numerical control milling type multi-station machining positioning device which comprises a workbench installed on a milling machine and a plurality of moving platforms, positioning tools are installed on the moving platforms, and the workbench is provided with a shaft hole, a rotating disc, a shaft rod, a rotating driver and a driven disc. A plurality of inserting grooves distributed around the axis of the driven disc at equal angles are formed in the outer wall of the driven disc, a limiting seat is arranged on the movable platform, a sliding seat moving in the radial direction of the shaft hole is slidably installed at the bottom of the limiting seat, a transmission rod is arranged at the bottom of the sliding seat, and a plurality of positioning bases located at the machining station are slidably installed at the bottom of the workbench. According to the technical scheme, movement of materials fixed to the positioning tool is achieved through transmission connection of the sliding base and the driven disc, the transmission rod and the inserting groove are separated through the positioning rod, transmission connection between the sliding base and the driven disc is relieved, and the position of the machining device can be conveniently and randomly arranged.

Description

Technical Field

[0001] The invention relates to the technical field of hardware processing, in particular to a CNC milling type multi-station processing and positioning device for furniture hardware. Background Art

[0002] Multi-station CNC milling machines can automatically process any products and components according to the programs pre-programmed by technicians. Using CNC milling machines to process parts with complex shapes not only improves labor productivity and processing quality, but also shortens the production preparation cycle and reduces the requirements for workers' technical proficiency.

[0003] When processing hardware on CNC automation equipment, it is necessary to use a fixture to clamp and fix the hardware, and then move it in sequence to the processing station in front of each processing device through the dividing plate for processing. In the existing technology, in order to ensure that the dividing plate can drive the hardware and the clamping tooling to move accurately, the clamping tooling needs to be installed on the dividing plate in an equiangular distribution manner. In this way, the angle of a single rotation of the dividing plate can be set to achieve the sequential movement of the clamping tooling. However, the movement range of milling cutters with different functions is not necessarily the same during processing. Therefore, it is difficult to ensure that multiple processing devices are installed with equal angles around the dividing plate. For irregularly distributed processing devices, it is difficult for the dividing plate to achieve the precise stop of the clamping tooling at the processing station of each processing device. Summary of the Invention

[0004] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a CNC milling multi-station processing and positioning device for furniture hardware, comprising a workbench and several mobile platforms installed on a milling machine, a positioning tool installed on the mobile platform, a circular shaft hole is provided at the axis of the workbench, a rotating disk is coaxially provided at the shaft hole, a shaft rod is provided at the axis of the rotating disk, the shaft rod is connected to a rotary driver, a driven disk is coaxially installed on the shaft rod, a plurality of insertion slots distributed at equal angles around the axis of the driven disk are provided on the outer wall of the driven disk, and the insertion slots open toward the axis of the driven disk; the movable platform A limit seat is provided on the table, which is slidably installed at the shaft hole, and a sliding seat that moves radially along the shaft hole is slidably installed at the bottom of the limit seat. A transmission rod is provided at the bottom of the sliding seat, and a first spring elastically connected to the sliding seat is provided on the limit seat, and the elastic force of the first spring causes the transmission rod to be inserted into the insertion groove; a number of positioning bases are slidably installed at the bottom of the workbench, and the positioning base is located at the processing station. A positioning rod facing the axis of the rotating disk is provided on the positioning base. When the limit seat of the mobile platform moves to the positioning rod, the positioning rod pushes the sliding seat to disengage the transmission rod from the insertion groove of the driven disk.

[0005] Preferably, an installation cavity is provided inside, the axis of the installation cavity extends radially along the rotating disk, a installation cylinder is coaxially installed in the installation cavity, a positioning rod is coaxially installed in the installation cylinder, a second spring is provided in the installation cylinder, the second spring is elastically connected to the positioning rod, and the elastic force of the second spring causes the positioning rod to move toward the axis of the rotating disk; the elastic force of the second spring is greater than the elastic force of the first spring; a positioning hole is provided at one end of the sliding seat away from the axis of the rotating disk, and the positioning hole and the positioning rod are at the same height and have the same diameter.

[0006] Preferably, an arc-shaped guide plate is provided at one end of the limit seat away from the axis of the rotating disk, the arc-shaped guide plate has an arc-shaped opening facing the side of the rotating disk, the width of the arc-shaped guide plate is greater than the width of the sliding seat, and a positioning through hole is provided on the arc-shaped guide plate which is in the same straight line as the second guide rod.

[0007] Preferably, the length of the mounting cavity is greater than the length of the mounting tube, a first linear drive is installed in the mounting cavity, a working end of the first linear drive is fixedly connected to the mounting tube, and the working end of the first linear drive moves along the axis direction of the mounting tube.

[0008] Preferably, a slider is provided on the upper side of the positioning base, and the positioning base is slidably installed in an annular slide rail coaxially arranged at the bottom of the workbench through the slider, and horizontal inner support plates are provided on the upper and lower sides of the positioning base, and the inner support plates are inserted into the positioning base through a vertical first guide rod, and a threaded sleeve aligned with the inner support plate is provided on the positioning base, and a locking bolt is spirally installed in the threaded sleeve, and the locking bolt pushes the inner support plate to respectively fit the friction ring at the bottom of the workbench and the milling machine to lock the position of the positioning base.

[0009] Preferably, a limiting slide rail is provided at the bottom of the limiting seat, and the sliding seat is slidably installed on it. A plurality of second guide rods are provided on the sliding seat, and the second guide rods extend radially along the rotating disk. The axis of the second guide rod is parallel to the axis of the limiting slide rail. The second guide rod is inserted into the limiting seat, and the first spring is sleeved on the second guide rod to elastically connect the limiting seat and the sliding seat.

[0010] Preferably, a plurality of limiting slide grooves are provided on the upper and lower sides of the workbench, and the axis of the limiting slide groove is in the same straight line as the axis of the rotating disk. A plurality of first balls are rotatably installed on the side of the movable platform and the limiting seat close to the workbench, and the first balls are located in the friction ring and roll.

[0011] Preferably, the limit seat is provided with a contact plate extending horizontally to the bottom of the rotating disk, and a clamping plate is coaxially provided on the shaft rod, the clamping plate is located below the contact plate, and a lifting platform is provided at the bottom of the clamping plate. After the lifting platform locks the position of the moving platform on the positioning base, the clamping plate is pushed up, and the clamping plate cooperates with the rotating disk to clamp the contact plate.

[0012] Preferably, a third guide rod is provided at the bottom of the contact plate, the third guide rod is inserted into the limit seat, a third spring is sleeved on the third guide rod, the third spring elastically connects the contact plate and the limit seat, and the elastic force of the third spring causes the contact plate to move downward away from the rotating disk.

[0013] Preferably, the lifting platform is slidably mounted on the milling machine through at least two vertical extension brackets. The milling machine is provided with a second linear drive. The working end of the second linear drive moves in a set vertical direction. A plurality of support rods extending vertically downward are provided at the bottom of the clamping plate. The support rods are inserted into the driven disk and contact the upper side of the lifting platform. The support rods contact the bottom end of the lifting platform and are rotatably installed with a second ball.

[0014] Compared with the prior art, the present invention has the following beneficial effects: First, the mobile platform for installing the positioning tooling in the present invention realizes the movement of the material fixed on the positioning tooling through the transmission connection between the sliding seat and the driven disk. The positioning rod of the positioning base separates the transmission rod from the insertion slot when the positioning tooling reaches the specified position, thereby releasing the transmission connection between the sliding seat and the driven disk. Therefore, there is no need for the staff to accurately set the rotation angle of the rotary drive. Therefore, each positioning tooling can be moved in turn to the processing station of the processing device at any position around the workbench, which makes it convenient to set the position of the processing device according to the working range of each processing device.

[0015] Secondly, in the present invention, the positioning rod is inserted into the mounting tube and protrudes from one end of the mounting tube under the elastic force of the second spring. The arc-shaped guide plate on the mobile platform can first contact the positioning rod before the positioning hole is aligned with the positioning rod, and make the positioning rod contact the arc-shaped outer wall of the arc-shaped guide plate and compress the second spring to move the positioning rod into the mounting tube until the positioning rod is aligned with the positioning hole of the sliding seat and locked, thereby ensuring the accuracy of the positioning of the mobile platform.

[0016] Third, the first linear driver in the mounting cavity of the present invention drives the mounting cylinder to move along the axis direction of the positioning rod, which can ensure that the mounting cylinder drives the positioning rod to disengage from the positioning hole, and the sliding seat moves toward the insertion slot of the driven disk again under the elastic force of the first spring, so that the transmission rod is inserted into the insertion slot to quickly restore the transmission connection with the driven disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1This is a three-dimensional diagram of a CNC milling multi-station processing and positioning device for furniture hardware.

[0019] Figure 2 It is a three-dimensional cross-sectional view of a CNC milling multi-station processing and positioning device for furniture hardware in the first working state.

[0020] Figure 3 for Figure 2 A partial enlarged view of point A.

[0021] Figure 4 for Figure 2 A partial enlarged view of point B.

[0022] Figure 5 for Figure 2 A partial enlarged view of point C.

[0023] Figure 6 This is a three-dimensional structural exploded view of a CNC milling multi-station processing and positioning device for furniture hardware.

[0024] Figure 7 It is a three-dimensional cross-sectional view of a CNC milling multi-station processing and positioning device for furniture hardware in the second working state.

[0025] Figure 8 for Figure 7 A partial enlarged view of point D.

[0026] Figure 9 It is a three-dimensional cross-sectional view of a CNC milling multi-station processing and positioning device for furniture hardware in the third working state.

[0027] Figure 10 for Figure 9 A partial enlarged view of point E.

[0028] Figure 11 This is a three-dimensional diagram of the mobile platform of a CNC milling multi-station processing and positioning device for furniture hardware.

[0029] Figure 12 This is a three-dimensional structural exploded view of the mobile platform of a CNC milling multi-station processing and positioning device for furniture hardware.

[0030] Figure 13 It is a three-dimensional positioning base of a CNC milling multi-station processing positioning device for furniture hardware. Figure 1 .

[0031] Figure 14 It is a three-dimensional positioning base of a CNC milling multi-station processing positioning device for furniture hardware. Figure 2 .

[0032] Explanation of reference numerals: 1, workbench; 1a, shaft hole; 1b, rotating disk; 1b1, shaft rod; 1b2, rotary drive; 1c, driven disk; 1c1, insertion slot; 1d, annular slide rail; 1e, friction ring; 1f, limit slide; 1g, clamping plate; 1g2, support rod; 1g3, second ball bearing; 1h, lifting platform; 1h1, extension bracket; 1h2, second linear drive; 2, moving platform; 2a, positioning tool; 2b, limit seat; 2b1, first spring; 2b2, arc guide plate ; 2b3, positioning through hole; 2b4, limiting slide rail; 2c, sliding seat; 2c1, transmission rod; 2c2, positioning hole; 2c3, second guide rod; 2d, first ball; 2e, contact plate; 2e1, third guide rod; 2e2, third spring; 3, positioning base; 3a, positioning rod; 3b, mounting cavity; 3b1, first linear drive; 3c, mounting cylinder; 3c1, second spring; 3d, slider; 3e, inner support plate; 3e1, first guide rod; 3f, threaded sleeve; 3f1, locking bolt. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Reference Figures 1 to 14 : A CNC milling multi-station processing and positioning device for furniture hardware, comprising a workbench 1 mounted on a milling machine and a plurality of mobile platforms 2, a positioning tool 2a being mounted on the mobile platform 2, a circular shaft hole 1a being provided at the axis of the workbench 1, a rotating disk 1b being coaxially provided at the shaft hole 1a, a shaft rod 1b1 being provided at the axis of the rotating disk 1b, the shaft rod 1b1 being transmission-connected to a rotary driver 1b2, a driven disk 1c being coaxially mounted on the shaft rod 1b1, a plurality of insertion slots 1c1 being distributed at equal angles around the axis of the driven disk 1c being provided on the outer wall of the driven disk 1c, the insertion slots 1c1 openings facing the axis of the driven disk 1c; a limit seat 2b being provided on the mobile platform 2, the limit seat 2b being slidably mounted Installed at the shaft hole 1a, a sliding seat 2c that moves radially along the shaft hole 1a is slidably installed at the bottom of the limit seat 2b, and a transmission rod 2c1 is provided at the bottom of the sliding seat 2c. A first spring 2b1 that is elastically connected to the sliding seat 2c is provided on the limit seat 2b, and the elastic force of the first spring 2b1 causes the transmission rod 2c1 to be inserted into the insertion slot 1c1; a number of positioning bases 3 are slidably installed at the bottom of the workbench 1, and the positioning base 3 is located at the processing station. A positioning rod 3a facing the axis of the rotating disk 1b is provided on the positioning base 3. When the limit seat 2b of the mobile platform 2 moves to the positioning rod 3a, the positioning rod 3a pushes the sliding seat 2c to disengage the transmission rod 2c1 from the insertion slot 1c1 of the driven disk 1c.

[0035] In this application, the workbench 1 is installed on a milling machine, and the processing devices are distributed around the workbench 1. When performing CNC drilling and milling on hardware, the staff fixes the processed material on the positioning tooling 2a of the mobile platform 2, and the rotary driver 1b2 is started to drive the shaft 1b1 to rotate. The shaft 1b1 is rotatably installed on the milling machine. The rotary driver 1b2 can be a servo motor. The rotation of the shaft 1b1 causes the rotating disk 1b and the driven disk 1c to rotate synchronously. Since the mobile platform 2 is connected to the limit seat 2b, the transmission rod 2c1 of the sliding seat 2c at the bottom of the limit seat 2b is inserted into the insertion slot 1c1 in the driven disk 1c. Therefore, when the driven disk 1c rotates, it drives the sliding seat 2c, the limit seat 2b, the mobile platform 2 and the positioning tooling 2a to rotate synchronously around the axis of the shaft 1b1, so that the material on the positioning tooling 2a moves between each processing device to change the processing process. In this embodiment, when the mobile platform 2 moves to the workstation where the positioning tooling 2a is located on a certain processing device, the sliding seat 2c is aligned with the positioning rod 3a installed at the bottom of the workbench 1 at the workstation, and the positioning rod 3a can push the sliding seat 2c to move radially along the rotating disk 1b, so that the transmission rod 2c1 disengages from the insertion slot 1c1 of the driven disk 1c, thereby realizing the positioning of the sliding seat 2c, the limit seat 2b, the mobile platform 2 and the positioning tooling 2a, and keeping the processed materials at the workstation. The rotary driver 1b2 can continue to drive the shaft 1b1 and the driven disk 1c to rotate, driving other mobile platforms 2 that have not reached the workstation to continue moving. In this embodiment, the mobile platform 2 for installing the positioning tooling 2a realizes the movement of the material fixed on the positioning tooling 2a through the transmission connection between the sliding seat 2c and the driven disk 1c. When the positioning tooling 2a reaches the specified position, the positioning rod 3a of the positioning base 3 separates the transmission rod 2c1 from the insertion slot 1c1 and contacts the transmission connection between the sliding seat 2c and the driven disk 1c. Therefore, there is no need for the staff to accurately set the rotation angle of the rotary driver 1b2. Therefore, each positioning tooling 2a can be moved in turn to the processing station of the processing device at any position around the workbench 1, so that it is convenient to set the position of the processing device according to the working range of each processing device.

[0036] In order to achieve alignment between the positioning base 3 and the mounting cylinder 3c after the positioning rod 3a causes the transmission rod 2c1 to be disengaged from the insertion slot 1c1, the following features are specifically provided: An installation cavity 3b is provided inside the said device, and the axis of the installation cavity 3b extends radially along the rotating disk 1b. A installation cylinder 3c is coaxially installed in the installation cavity 3b, and the positioning rod 3a is coaxially installed in the installation cylinder 3c. A second spring 3c1 is provided in the installation cylinder 3c, and the second spring 3c1 is elastically connected to the positioning rod 3a. The elastic force of the second spring 3c1 causes the positioning rod 3a to move toward the axis of the rotating disk 1b; the elastic force of the second spring 3c1 is greater than the elastic force of the first spring 2b1; a positioning hole 2c2 is provided at the end of the sliding seat 2c away from the axis of the rotating disk 1b, and the positioning hole 2c2 and the positioning rod 3a are at the same height and have the same diameter.

[0037] In this embodiment, the positioning rod 3a is inserted into the mounting tube 3c and protrudes from one end of the mounting tube 3c under the elastic force of the second spring 3c1. When the movable platform 2 rotates until the sliding seat 2c is aligned with the positioning rod 3a, the positioning rod 3a is inserted into the positioning hole 2c2 on the sliding seat 2c, thereby realizing the connection between the sliding seat 2c and the positioning rod 3a. The transmission rod 2c1, the positioning hole 2c2 and the positioning rod 3a can be arranged on the center plane of the movable platform 2 and the positioning base 3. Therefore, the positioning rod 3a is inserted into the positioning hole 2c2 of the sliding seat 2c to ensure the alignment of the movable platform 2 and the positioning base 3. Since the elastic force of the second spring 3c1 is greater than the elastic force of the first spring 2b1, the positioning rod 3a can push the sliding seat 2c to compress the first spring 2b1 under the elastic force of the second spring 3c1, thereby realizing the separation of the transmission rod 2c1 from the insertion slot 1c1.

[0038] In order to enable the movement of the sliding seat 2c so that the positioning rod 3a can push the transmission rod 2c1 out of the insertion slot 1c1 only when the positioning hole 2c2 is aligned with the positioning rod 3a, thereby ensuring the accurate positioning of the mobile platform 2, the following features are specifically provided: An arc-shaped guide plate 2b2 is provided at one end of the limit seat 2b away from the axis of the rotating disk 1b. The arc-shaped guide plate 2b2 has an arc-shaped opening facing the side of the rotating disk 1b. The width of the arc-shaped guide plate 2b2 is greater than the width of the sliding seat 2c. A positioning through hole 2b3 is provided on the arc-shaped guide plate 2b2 and is in the same straight line with the second guide rod 2c3.

[0039] The width of the arc guide plate 2b2 set on the limit seat 2b in this embodiment is greater than the width of the sliding seat 2c. Therefore, during the movement of the mobile platform 2, the arc guide plate 2b2 can first contact the positioning rod 3a before the positioning hole 2c2 is aligned with the positioning rod 3a. Therefore, after the arc guide plate 2b2 contacts the positioning rod 3a, the positioning rod 3a can contact the arc-shaped outer wall of the arc guide plate 2b2 and compress the second spring 3c1 to move the positioning rod 3a into the installation tube 3c until the positioning rod 3a is aligned with the positioning hole 2c2 of the sliding seat 2c. Under the action of the elastic force of the second spring 3c1, the positioning rod 3a first passes through the positioning through hole 2b3 on the arc guide plate 2b2 and then is directly inserted into the positioning hole 2c2, and pushes the sliding seat 2c to make the transmission rod 2c1 disengage from the insertion slot 1c1.

[0040] In order to solve the problem of how to restore the transmission connection between the sliding seat 2c and the driven disc 1c, the following features are specifically set: The length of the mounting cavity 3b is greater than that of the mounting tube 3c. A first linear driver 3b1 is installed in the mounting cavity 3b. The working end of the first linear driver 3b1 is fixedly connected to the mounting tube 3c and moves along the axis of the mounting tube 3c.

[0041] In this embodiment, after the machining device is completed, the first linear actuator 3b1 within the mounting cavity 3b drives the mounting cylinder 3c to move along the axis of the positioning rod 3a. Since the length of the mounting cavity 3b is greater than that of the mounting cylinder 3c, the mounting cylinder 3c moves within the mounting cavity 3b toward the side away from the shaft 1b1, ensuring that the mounting cylinder 3c drives the positioning rod 3a out of the positioning hole 2c2. Under the elastic force of the first spring 2b1, the sliding seat 2c moves again toward the insertion slot 1c1 of the driven disk 1c, inserting the transmission rod 2c1 into the insertion slot 1c1 and restoring the transmission connection with the driven disk 1c. Even if the transmission rod 2c1 is not directly inserted into the insertion slot 1c1, it can be inserted into the insertion slot 1c1 as soon as the driven disk 1c rotates, due to the elastic force of the first spring 2b1. In this embodiment, the first linear actuator 3b1 can be a pneumatic cylinder or an electric push rod.

[0042] In order to ensure that the position of the positioning base 3 is fixed and the height of the positioning rod 3a is always flush with the positioning hole 2c2 of the sliding seat 2c, the following features are specifically set: A slider 3d is provided on the upper side of the positioning base 3, and the positioning base 3 is slidably installed in the annular slide rail 1d coaxially provided at the bottom of the workbench 1 through the slider 3d. Horizontal inner support plates 3e are provided on the upper and lower sides of the positioning base 3, and the inner support plate 3e is inserted into the positioning base 3 through a vertical first guide rod 3e1. A threaded sleeve 3f is provided on the positioning base 3 and is aligned with the inner support plate 3e. A locking bolt 3f1 is spirally installed in the threaded sleeve 3f. The locking bolt 3f1 pushes the inner support plate 3e to fit the friction ring 1e at the bottom of the workbench 1 and the milling machine to lock the position of the positioning base 3.

[0043] In this embodiment, the staff can adjust the position of the positioning base 3 according to the position of the processing device, so that after the positioning base 3 positions the mobile platform 2, the material fixed by the positioning tool 2a is located at the processing position of the processing device, and the positioning base 3 is slidably installed in the annular slide rail 1d at the bottom of the workbench 1 through the slider 3d. The staff can easily slide the positioning base 3 to move. When the positioning base 3 moves to the appropriate position, the staff can select the locking bolt 3f1 in the threaded sleeve 3f, so that the locking bolt 3f1 pushes the inner support plate 3e to fit the friction ring 1e at the bottom of the workbench 1 and the milling machine to lock the position of the positioning base 3.

[0044] In order to ensure that the sliding seat 2c moves radially along the shaft 1b1, the following features are specifically provided: A limiting slide rail 2b4 is provided at the bottom of the limiting seat 2b, and the sliding seat 2c is slidably installed on 2c4. A plurality of second guide rods 2c3 are provided on the sliding seat 2c. The second guide rods 2c3 extend radially along the rotating disk 1b. The axis of the second guide rod 2c3 is parallel to the axis of the limiting slide rail 2b4. The second guide rod 2c3 is inserted into the limiting seat 2b, and the first spring 2b1 is sleeved on the second guide rod 2c3 to elastically connect the limiting seat 2b and the sliding seat 2c.

[0045] The sliding seat 2c in this embodiment is slidably installed in the limiting slide rail 2b4 set at the bottom of the limiting seat 2b. Limit blocks can be set at both ends of the limiting slide rail 2b4 to ensure the moving range of the sliding seat 2c within the limiting slide rail 2b4. The second guide rod 2c3 of the sliding seat 2c is inserted on the limiting seat 2b to further stabilize the moving path of the sliding seat 2c while facilitating the installation of the first spring 2b1.

[0046] In order to reduce the friction between the mobile platform 2 and the workbench 1 when the mobile platform 2 moves, the following features are specifically set: Several limiting grooves 1f are provided on the upper and lower sides of the workbench 1. The axis of the limiting groove 1f is in the same straight line as the axis of the rotating disk 1b. Several first balls 2d are rotatably installed on the side of the mobile platform 2 and the limiting seat 2b close to the workbench 1. The first balls 2d are located in the friction ring 1e and roll.

[0047] In this embodiment, first balls 2d, located on the bottom of the mobile platform 2 and the upper side of the limiting seat 2b, are positioned within limiting grooves 1f on the upper and lower sides of the workbench 1 for limited movement. The presence of the first balls 2d converts the sliding friction between the mobile platform 2, the limiting seat 2b, and the workbench 1 into rolling friction, reducing resistance during the movement of the mobile platform 2 and enabling the driven disk 1c to easily drive the mobile platform 2 to adjust its position. Furthermore, the position of the first balls 2d within the limiting grooves 1f prevents the mobile platform 2 from moving radially along the shaft 1b1 when the positioning rod 3a pushes the sliding seat 2c, thereby ensuring the position of the positioning fixture 2a after positioning.

[0048] In order to provide stability for the positioning tool 2a during processing, the following features are specifically set: The limit seat 2b is provided with a contact plate 2e extending horizontally to the bottom of the rotating disk 1b, and the shaft 1b1 is coaxially provided with a clamping plate 1g, which is located below the contact plate 2e. A lifting platform 1h is provided at the bottom of the clamping plate 1g. After the positioning base 3 locks the position of the movable platform 2, the lifting platform 1h pushes the clamping plate 1g to move upward, and the clamping plate 1g cooperates with the rotating disk 1b to clamp the contact plate 2e.

[0049] In this embodiment, a contact plate 2e extending to the bottom of the rotating disk 1b is also provided on the limit seat 2b. When the positioning base 3 locks the position of the movable platform 2, the clamping plate 1g on the shaft 1b1 gradually moves upward under the lifting of the lifting platform 1h until it fits the bottom of the contact plate 2e. The clamping plate 1g cooperates with the rotating disk 1b to clamp the contact plate 2e, thereby further improving the stability of the limit seat 2b and the movable platform 2, and ensuring the stability of the positioning tooling 2a during processing in the processing device.

[0050] When the mobile platform 2 is locked by the positioning base 3, the contact plate 2e and the rotating disk 1b change from a relatively static state to a relatively moving state. In order to reduce the friction generated between the contact plate 2e and the rotating disk 1b, the following features are specifically set: A third guide rod 2e1 is provided at the bottom of the contact plate 2e, and the third guide rod 2e1 is inserted into the limit seat 2b. A third spring 2e2 is sleeved on the third guide rod 2e1, and the third spring 2e2 elastically connects the contact plate 2e and the limit seat 2b. The elastic force of the third spring 2e2 causes the contact plate 2e to move downward away from the rotating disk 1b.

[0051] In this embodiment, contact plate 2e is mounted on limit seat 2b via third guide rod 2e1, ensuring that contact plate 2e can only move in the vertical direction. A third spring 2e2 on third guide rod 2e1, combined with the weight of contact plate 2e, prevents contact plate 2e from contacting the bottom of rotating disk 1b under normal conditions. Therefore, when contact plate 2e and rotating disk 1b are in relative motion, no friction is generated to burden the working end of rotary actuator 1b2. When lifting platform 1h raises clamping plate 1g until it contacts contact plate 2e, contact plate 2e gradually stretches third spring 2e2 and moves upward until it contacts the bottom of rotating disk 1b, where it is held in place by rotating disk 1b and clamping plate 1g. When lifting platform 1h drives clamping plate 1g downward, contact plate 2e automatically resets.

[0052] In order to solve the problem of how the lifting platform 1h drives the clamping plate 1g to move upward to clamp the contact plates 2e of all the mobile platforms 2, the following features are specifically set: The lifting platform 1h is slidably installed on the milling machine through at least two vertical extension brackets 1h1. The milling machine is provided with a second linear drive 1h2. The working end of the second linear drive 1h2 moves in the set vertical direction. A plurality of support rods 1g2 extending vertically downward are provided at the bottom of the clamping plate 1g. The support rods 1g2 are inserted into the driven disk 1c and contact the upper side of the lifting platform 1h. The support rods 1g2 contact the bottom end of the lifting platform 1h and are rotatably installed with a second ball 1g3.

[0053] In this embodiment, the lifting platform 1h is connected to the second linear drive 1h2 through the extended bracket 1h1. The second linear drive 1h2 can be a pneumatic cylinder, an oil cylinder or an electric push rod, etc. The second linear drive 1h2 pushes the lifting platform 1h to move upward, and the support rod 1g2 at the bottom of the clamping plate 1g passes through the driven disk 1c and contacts the upper side of the lifting platform 1h. Therefore, the upward movement of the lifting platform 1h can drive the clamping plate 1g to move upward. Since the support rod 1g2 is inserted into the driven disk 1c, the clamping plate 1g rotates with the driven disk 1c, and the second ball 1g3 at the bottom of the support rod 1g2 reduces the friction generated by the support rod 1g2 and the surface of the lifting platform 1h when the support rod 1g2 moves.

[0054] Working principle: The workbench 1 is installed on the milling machine, and the processing devices are distributed around the workbench 1. When performing CNC drilling and milling on hardware, the staff will fix the processed materials on the positioning tooling 2a of the mobile platform 2, and the rotary driver 1b2 will start to drive the shaft 1b1 to rotate. The rotating disk 1b and the driven disk 1c will rotate synchronously. The transmission rod 2c1 of the mobile platform 2 is inserted into the insertion slot 1c1 in the driven disk 1c. Therefore, when the driven disk 1c rotates, it drives the sliding seat 2c, the limit seat 2b, the mobile platform 2 and the positioning tooling 2a to rotate synchronously around the axis of the shaft 1b1, so that the material on the positioning tooling 2a moves between the various processing devices. When the mobile platform 2 moves to the workstation where the positioning tooling 2a is located on a certain processing device, the sliding seat 2c is aligned with the positioning rod 3a installed at the workstation on the bottom of the workbench 1. The positioning rod 3a can push the sliding seat 2c to move radially along the rotating disk 1b, so that the transmission rod 2c1 disengages from the insertion slot 1c1 of the driven disk 1c, thereby realizing the positioning of the sliding seat 2c, the limit seat 2b, the mobile platform 2 and the positioning tooling 2a, and keeping the processed materials at the workstation. The rotary driver 1b2 can continue to drive the shaft 1b1 and the driven disk 1c to rotate, driving other mobile platforms 2 that have not reached the workstation to continue moving. After the mobile platform 2 is fully positioned, the processing device processes the material on the positioning tooling 2a. When the processing device completes the processing, the first linear driver 3b1 in the mounting cavity 3b drives the mounting cylinder 3c to move along the axial direction of the positioning rod 3a, so that the mounting cylinder 3c drives the positioning rod 3a to disengage from the positioning hole 2c2. The sliding seat 2c moves toward the insertion slot 1c1 of the driven disk 1c again under the elastic force of the first spring 2b1, so that the transmission rod 2c1 is inserted into the insertion slot 1c1 to restore the transmission connection with the driven disk 1c, and drive the positioning tooling 2a to enter the next processing station.

[0055] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A CNC milling multi-station processing and positioning device for furniture hardware, comprising a workbench (1) mounted on a milling machine and a plurality of mobile platforms (2), wherein positioning tooling (2a) is mounted on the mobile platforms (2), characterized in that: A circular shaft hole (1a) is provided at the axis of the workbench (1), a rotating disk (1b) is coaxially provided at the shaft hole (1a), a shaft rod (1b1) is provided on the axis of the rotating disk (1b), the shaft rod (1b1) is connected to a rotary driver (1b2), a driven disk (1c) is coaxially mounted on the shaft rod (1b1), a plurality of insertion slots (1c1) are provided on the outer wall of the driven disk (1c) and are distributed at equal angles around the axis of the driven disk (1c), and the insertion slots (1c1) open toward the axis of the driven disk (1c); A limit seat (2b) is provided on the mobile platform (2), the limit seat (2b) is slidably mounted on the shaft hole (1a), a sliding seat (2c) is slidably mounted on the bottom of the limit seat (2b) and moves radially along the shaft hole (1a), a transmission rod (2c1) is provided on the bottom of the sliding seat (2c), and a first spring (2b1) elastically connected to the sliding seat (2c) is provided on the limit seat (2b), and the elastic force of the first spring (2b1) causes the transmission rod (2c1) to be inserted into the insertion slot (1c1); A plurality of positioning bases (3) are slidably mounted on the bottom of the workbench (1). The positioning bases (3) are located at the processing stations. A positioning rod (3a) facing the axis of the rotating disk (1b) is provided on the positioning base (3). When the limiting seat (2b) of the movable platform (2) moves to the positioning rod (3a), the positioning rod (3a) pushes the sliding seat (2c) to disengage the transmission rod (2c1) from the insertion slot (1c1) of the driven disk (1c).

2. A CNC milling multi-station processing and positioning device for furniture hardware according to claim 1, characterized in that: A mounting cavity (3b) is provided inside the mounting cavity (3b), the axis of the mounting cavity (3b) extends radially along the rotating disk (1b), a mounting cylinder (3c) is coaxially installed in the mounting cavity (3b), a positioning rod (3a) is coaxially installed in the mounting cylinder (3c), a second spring (3c1) is provided in the mounting cylinder (3c), the second spring (3c1) is elastically connected to the positioning rod (3a), and the elastic force of the second spring (3c1) causes the positioning rod (3a) to move toward the axis of the rotating disk (1b); The elastic force of the second spring (3c1) is greater than the elastic force of the first spring (2b1); A positioning hole (2c2) is provided at one end of the sliding seat (2c) away from the axis of the rotating disk (1b), and the positioning hole (2c2) and the positioning rod (3a) are at the same height and have the same diameter.

3. A CNC milling multi-station processing and positioning device for furniture hardware according to claim 2, characterized in that: An arc-shaped guide plate (2b2) ​​is provided at one end of the limit seat (2b) away from the axis of the rotating disk (1b), the arc-shaped guide plate (2b2) ​​having an arc-shaped opening facing one side of the rotating disk (1b), the width of the arc-shaped guide plate (2b2) ​​being greater than the width of the sliding seat (2c), and a positioning through hole (2b3) which is in the same straight line as the second guide rod (2c3) being provided on the arc-shaped guide plate (2b2).

4. A CNC milling multi-station processing and positioning device for furniture hardware according to claim 2, characterized in that: The length of the mounting cavity (3b) is greater than the length of the mounting cylinder (3c); a first linear drive (3b1) is installed in the mounting cavity (3b); a working end of the first linear drive (3b1) is fixedly connected to the mounting cylinder (3c); and the working end of the first linear drive (3b1) moves along the axial direction of the mounting cylinder (3c).

5. The CNC milling multi-station processing and positioning device for furniture hardware according to claim 2, characterized in that: A slider (3d) is provided on the upper side of the positioning base (3), and the positioning base (3) is slidably installed in an annular slide rail (1d) coaxially provided at the bottom of the workbench (1) through the slider (3d). Horizontal inner support plates (3e) are provided on the upper and lower sides of the positioning base (3), and the inner support plates (3e) are inserted into the positioning base (3) through a vertical first guide rod (3e1). A threaded sleeve (3f) aligned with the inner support plate (3e) is provided on the positioning base (3), and a locking bolt (3f1) is spirally installed in the threaded sleeve (3f). The locking bolt (3f1) pushes the inner support plate (3e) to respectively fit the friction ring (1e) at the bottom of the workbench (1) and the milling machine to lock the position of the positioning base (3).

6. The CNC milling multi-station processing and positioning device for furniture hardware according to claim 1, characterized in that: A limiting slide rail (2b4) is provided at the bottom of the limiting seat (2b), the sliding seat (2c) is slidably mounted on 2c4, a plurality of second guide rods (2c3) are provided on the sliding seat (2c), the second guide rods (2c3) extend radially along the rotating disk (1b), the axis of the second guide rods (2c3) is parallel to the axis of the limiting slide rail (2b4), the second guide rods (2c3) are inserted into the limiting seat (2b), and the first spring (2b1) is sleeved on the second guide rods (2c3) to elastically connect the limiting seat (2b) and the sliding seat (2c).

7. A CNC milling multi-station processing and positioning device for furniture hardware according to claim 6, characterized in that: A plurality of limiting slide grooves (1f) are provided on both the upper and lower sides of the workbench (1), and the axis of the limiting slide groove (1f) is in the same straight line as the axis of the rotating disk (1b). A plurality of first balls (2d) are rotatably mounted on the side of the movable platform (2) and the limiting seat (2b) close to the workbench (1), and the first balls (2d) are located and roll in the friction ring (1e).

8. The CNC milling multi-station processing and positioning device for furniture hardware according to claim 7, characterized in that: The limit seat (2b) is provided with a contact plate (2e) extending horizontally to the bottom of the rotating disk (1b), and a clamping plate (1g) is coaxially provided on the shaft (1b1). The clamping plate (1g) is located below the contact plate (2e). A lifting platform (1h) is provided at the bottom of the clamping plate (1g). After the positioning base (3) locks the position of the movable platform (2), the lifting platform (1h) pushes the clamping plate (1g) upward, and the clamping plate (1g) cooperates with the rotating disk (1b) to clamp the contact plate (2e).

9. The CNC milling multi-station processing and positioning device for furniture hardware according to claim 8, characterized in that: A third guide rod (2e1) is provided at the bottom of the contact plate (2e), the third guide rod (2e1) is inserted into the limit seat (2b), a third spring (2e2) is sleeved on the third guide rod (2e1), the third spring (2e2) elastically connects the contact plate (2e) and the limit seat (2b), and the elastic force of the third spring (2e2) causes the contact plate (2e) to move downward away from the rotating disk (1b).

10. The CNC milling multi-station processing and positioning device for furniture hardware according to claim 8, characterized in that: The lifting platform (1h) is slidably mounted on a milling machine via at least two vertical extension brackets (1h1). A second linear drive (1h2) is provided on the milling machine. The working end of the second linear drive (1h2) moves in a set vertical direction. A plurality of support rods (1g2) extending vertically downward are provided at the bottom of the clamping plate (1g). The support rods (1g2) are inserted into the driven disk (1c) and contact the upper side of the lifting platform (1h). A second ball (1g3) is rotatably mounted on the bottom end of the support rod (1g2) contacting the lifting platform (1h).

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