Gear linkage chuck

Abstract

The utility model relates to the technical field of chucks, in particular to a gear linkage chuck which comprises a mounting disc, a clamping hole is formed in the middle of the mounting disc, guide rails are arranged in the four directions of the mounting disc, sliding seats are arranged on the guide rails, the sliding seats are in sliding connection with the guide rails, claw bodies are arranged on the sliding seats, and the guide rails face the clamping hole. Driving frames and driving parts are further arranged on the mounting disc, the driving frames are arranged on the lower sides of the guide rails and correspond to the four guide rails respectively, the driving frames are perpendicular to the guide rails on the upper sides of the driving frames, the driving parts are used for driving the driving frames to move in the length direction of the guide rails, and racks are arranged at the two ends of each driving frame; gears are arranged at the two ends of each driving frame, the gears are rotationally connected with the mounting disc, one ends of the gears are meshed with the racks, and transmission parts are arranged at the other ends of the gears and are in transmission connection with the corresponding sliding seats at the two ends of the driving frames; the gears at the two ends of the driving frame rotate in opposite directions, and the transmission parts on the gears at the two ends of the driving frame move in the same direction.

Description

Technical Field

[0001] The utility model relates to the technical field of chucks, in particular to a gear linkage chuck. Background Art

[0002] Laser cutting is a precise and efficient mechanical processing method, which has been widely used in industry. When processing some tubular materials, a chuck needs to be set to clamp the tubular materials, and then the tubular materials are cut by a laser device.

[0003] Chucks usually set multiple jaw bodies to clamp the workpiece synchronously from all directions. In the prior art, the jaw bodies are usually driven to move independently along the pneumatic way. The symmetrically arranged jaw bodies are prone to the problem of unable to clamp synchronously. Due to the asynchronous clamping, it is easy to occur the situation of unstable clamping, thus leading to the situation of the object falling off. Summary of the Utility Model

[0004] In order to solve the problem that in the prior art, the jaw bodies are usually driven to move independently along the pneumatic way, and the symmetrically arranged jaw bodies are prone to the problem of unable to clamp synchronously. Due to the asynchronous clamping, it is easy to occur the situation of unstable clamping, thus leading to the problem of the object falling off. The present application provides a gear linkage chuck, and the specific scheme is as follows.

[0005] A gear linkage chuck includes a mounting plate, and a clamping hole is formed in the middle of the mounting plate. It is characterized in that: guide rails are arranged in four directions of the mounting plate, a sliding seat is arranged on the guide rail, the sliding seat is slidably connected with the guide rail, a jaw body is arranged on the sliding seat, and the guide rails all face the clamping hole;

[0006] A driving frame and a driving member are further arranged on the mounting plate. The driving frame is arranged on the lower side of the guide rail and one is arranged corresponding to each of the four guide rails. The driving frame is perpendicular to the guide rail on its upper side. The driving member is used to drive the driving frame to move along the length direction of the guide rail. Rack teeth are arranged at both ends of the driving frame, gears are arranged at both ends of each driving frame, the gears are rotatably connected with the mounting plate, one end of the gear is meshed with the rack teeth, and a transmission member is arranged at the other end of the gear. The transmission member is in transmission connection with the sliding seats corresponding to both ends of the driving frame;

[0007] The rotation directions of the gears at both ends of the driving frame are opposite, and the moving directions of the transmission members on the gears at both ends of the driving frame are the same.

[0008] By adopting the above technical solution, a driving frame and gears are set, and the driving frame can move under the drive of the driving member. During the movement of the driving frame, the gears on both sides thereof will be driven to rotate, and the gears on both sides will drive the symmetrically arranged slides to move synchronously toward each other, thereby completing the clamping, so that the symmetrically arranged slides can clamp synchronously, reducing the situation of falling off caused by asynchrony during clamping, and gears are set on both sides of each driving frame, so a single slide can be driven by the gears on both sides at the same time. The slide is driven from both sides at the same time, which is more stable and can reduce the situation where the slide cannot move when driven from one side.

[0009] Optionally, a shielding cover is provided on the mounting plate, the slide seat and the guide rail are arranged on the upper side of the shielding cover, the driving frame and the driving member are arranged on the lower side of the shielding cover, the shielding cover completely wraps the driving frame and the driving member in the shielding cover, the shielding cover also shields the interior of the mounting plate at the clamping hole, and the gear is rotatably connected to the shielding cover.

[0010] By adopting the above technical solution, a shielding cover is arranged on the mounting plate. Since the slides are driven by gears, when dust falls into the gears, especially when dust falls between the rack and the gear, the rotation of the gears will be affected by the dust. Under long-term influence, it will cause the gears to rotate asynchronously. Therefore, setting a shielding cover can block the dust, thereby reducing the situation where the asynchronous rotation of the gears causes the asynchronous drive of the slide, and improving the synchronization of the slide movement.

[0011] Optionally, a transmission block is provided on the lower side of the slide, and the transmission block is provided inside the shielding cover, and a connecting rod is provided between the transmission block and the slide, one end of the connecting rod is fixedly connected to the transmission block, and the other end of the connecting rod is fixedly connected to the slide, and the other end of the connecting rod extends into the shielding cover and is fixedly connected to the transmission block, a transmission groove is provided on the transmission block, and the transmission member is embedded in the transmission groove to form a linkage with the transmission block, and a yield groove is provided on the shielding cover corresponding to the connecting rod, and the connecting rod is slidably connected in the yield groove.

[0012] By adopting the above technical solution, a transmission block is set corresponding to the transmission rod and the transmission block is extended into the shielding cover. Therefore, the action during transmission is mainly performed in the shielding cover. Therefore, dust can also be better shielded on the outside of the shielding cover, further reducing the impact of dust on the gears. The drive adopts a method of setting a clearance groove and clamping at the clearance groove, which can realize the driving of the slide seat more smoothly and further improve the driving efficiency.

[0013] Optionally, a stopper is fixedly connected to the slide seat, the stopper is arranged along the guide rail and is slidably connected to the guide rail, and the stopper is used to block the yield groove.

[0014] By adopting the above technical solution and setting a block to cover the clearance groove, it is possible to further reduce the chance of dust falling into the shielding cover, thereby reducing the chance of dust entering the shielding cover and affecting the gear, further improving the clamping stability and increasing the service life of the gear.

[0015] Optionally, a baffle is further provided on the lower side of the shielding cover, and the baffle is provided on the upper side of the driving frame. The baffle completely blocks the driving frame at the lower side of the baffle, and a clearance groove is also provided on the baffle corresponding to the connecting rod.

[0016] By adopting the above technical solution, a baffle is set on the lower side of the shielding cover. Even if external dust enters the shielding cover, it can be blocked by the baffle, further reducing the impact of dust entering the baffle on the gear, and further improving the clamping stability and the service life of the jaws.

[0017] Optionally, the driving member includes a cylinder, the driving frame is fixedly connected to the piston rod of the cylinder, a guide rail is also provided on the mounting plate corresponding to the driving frame, and the driving frame is slidably connected to the corresponding guide rail.

[0018] By adopting the above technical solution, a cylinder is set to drive the driving frame, and the driving frame can move along the length direction of the piston rod, which can drive the driving frame to move stably and quickly, thereby completing the clamping of the material.

[0019] Optionally, the transmission member includes a transmission rod, one end of which is fixedly connected to the gear, and the other end of which is provided with a transmission head, and both sides of the transmission head are arranged in an arc shape.

[0020] By adopting the above technical solution, a transmission rod and a transmission head are set, and the transmission head is set in an arc shape, which is less likely to interfere with the transmission block at the transmission groove, making the transmission slide smoother, further improving the smoothness of the driving slide movement, and also increasing the service life.

[0021] Optionally, a side of the driving frame facing the clamping hole is arranged to correspond to the shape of the shielding cover, and the driving frame can abut against the inner wall of the shielding cover.

[0022] By adopting the above technical solution, the driving frame is set to correspond to the shape of the shielding cover, and the driving frame can abut against the inner wall of the shielding cover, thereby reducing the interference between the driving frame and the shielding cover during movement and affecting the shielding cover, thereby improving stability during use.

[0023] Optionally, a blocking member is provided at a position of the shielding cover corresponding to the gear, and the blocking member is used to interfere with the transmission member.

[0024] By adopting the above technical solutions, a blocking member is provided corresponding to the gear. During the rotation of the gear, the blocking member can interfere with the transmission member, thereby restricting the further rotation of the gear, reducing the situation of excessive clamping and damage.

[0025] In summary, the present application has at least the following beneficial effects:

[0026] 1. The present application solves the problem that in the prior art, the claw bodies are usually driven to move separately along the claw body in a pneumatic manner, and the symmetrically arranged claw bodies are prone to the problem of asynchronous clamping. Due to the asynchronous clamping, the situation of unstable clamping is likely to occur, resulting in the falling off of the object. In the present application, the claw bodies are driven by setting gears. When the driving frame is driven to move, the gears can be driven to rotate. During the rotation of the gears, the sliding seat can be driven. Each rack drives two gears, and the two gears can respectively drive the claw bodies on both sides, just being able to drive the symmetric clamping jaws to move towards each other, thereby realizing the synchronous driving of the clamping jaws and reducing the situation of unstable clamping caused by the asynchronous movement of the claw bodies.

[0027] 2. The present application also reduces the situation that dust enters the shielding cover and affects the rotation of the gears by setting corresponding shielding covers and baffles, further reducing the situation of asynchronous rotation of the gears. Description of the Drawings

[0028] Figure 1 is the perspective view of this embodiment.

[0029] Figure 2 is the perspective view of this embodiment, mainly used to show the internal structure.

[0030] Figure 3 is the cross-sectional view of this embodiment.

[0031] Figure 4 is the perspective view of the gear in this embodiment.

[0032] Figure 5 is the perspective view of the driving frame in this embodiment.

[0033] Figure 6 is the perspective view of the driving frame in this embodiment.

[0034] Explanation of the Reference Numerals:

[0035] 1. Mounting plate; 11. Clamping hole; 12. Guide rail; 121. Sliding seat; 122. Claw body; 123. Transmission block; 124. Connecting rod; 125. Stopper; 13. Gear; 131. Transmission rod; 132. Transmission head;

[0036] 2. Driving frame; 21. Rack;

[0037] 3. Driving member;

[0038] 4. Shield; 41. Relief groove; 42. Baffle;

[0039] 5. Blocking member; Detailed implementation manner

[0040] The following further details the present application with reference to the accompanying drawings and through specific embodiments.

[0041] A gear 13 linkage chuck includes a mounting disc 1. A clamping hole 11 is provided in the middle of the mounting disc 1. In this embodiment, the mounting disc 1 is circular, and the clamping hole 11 is square. Guide rails 12 are provided in four directions of the mounting disc 1. The guide rails 12 exactly correspond to the four sides of the clamping hole 11 and are perpendicular to the four sides of the clamping hole 11. A sliding seat 121 is provided on the guide rail 12, and the sliding seat 121 is slidably connected to the guide rail 12. A claw body 122 is provided on the sliding seat 121, and the guide rails 12 all face the clamping hole 11. During specific implementation, when the sliding seat 121 moves towards the clamping hole 11, the workpiece fed in can be clamped.

[0042] As Figure 2 and Figure 3 shown, a driving frame 2 and a driving member 3 are further provided on the mounting disc 1. The driving frame 2 is provided on the lower side of the guide rail 12 and one is provided corresponding to each of the four guide rails 12. The driving frame 2 is perpendicular to the guide rail 12 on its upper side. The driving member 3 is used to drive the driving frame 2 to move along the length direction of the guide rail 12. Rack teeth 21 are provided at both ends of the driving frame 2. The teeth of the rack teeth 21 are parallel to the guide rail 12 on the upper side of the driving frame 2. Gears 13 are provided at both ends of each driving frame 2, and the gears 13 are rotatably connected to the mounting disc 1. One end of the gear 13 is meshed with the rack teeth 21, and a transmission member is provided at the other end of the gear 13. The transmission member is in transmission connection with the sliding seats 121 corresponding to both ends of the driving frame 2. During specific implementation, two gears 13 are provided at both ends of each driving frame 2, and a total of eight gears 13 are provided. The transmission member is fixedly installed on the gear 13 and can rotate with the gear 13. When the driving frame 2 moves, the rotation directions of the gears 13 at both ends of the driving frame 2 are opposite, and the moving directions of the transmission members on the gears 13 at both ends of the driving frame 2 are the same. When the driving member 3 drives, the eight gears 13 can mutually drive the corresponding sliding seats 121 to move. Among them, a pair of gears 13 will drive each sliding seat 121 on both sides, and the gears 13 on both sides driven by one driving frame 2 respectively drive two groups of symmetrically arranged sliding seats 121 to move, so as to drive the two groups of sliding seats 121 to move towards each other.

[0043] As Figure 1 and Figure 2As shown, a shielding cover 4 is provided on the mounting plate 1, a slide 121 and a guide rail 12 are provided on the upper side of the shielding cover 4, a driving frame 2 and a driving member 3 are provided on the lower side of the shielding cover 4, and the shielding cover 4 completely wraps the driving frame 2 and the driving member 3 in the shielding cover 4, and the shielding cover 4 also shields the inside of the mounting plate 1 at the clamping hole 11, and a gear 13 is rotatably connected with the shielding cover 4. In a specific implementation, the shielding cover 4 includes an outer plate and an inner plate, and a top plate is provided on the outer plate and the inner plate. The outer plate and the inner plate first wrap the driving frame 2 and the driving member 3 inside, and then the top plate closes the top, thereby reducing the situation where dust enters the shielding cover 4, and reduces the situation where dust is stuck between the gear 13 and the rack 21, thereby reducing the situation where the rotation of the gear 13 is affected and the movement of the slide 121 is not synchronized, and further improving.

[0044] like Figure 1 and Figure 2 As shown, a transmission block 123 is provided on the lower side of the slide 121, and the transmission block 123 is provided inside the shielding cover 4. A connecting rod 124 is provided between the transmission block 123 and the slide 121, and one end of the connecting rod 124 is fixedly connected to the transmission block 123, and the other end of the connecting rod 124 is fixedly connected to the slide 121, and the other end of the connecting rod 124 extends into the shielding cover 4 and is fixedly connected to the transmission block 123. A transmission groove is provided on the transmission block 123, and transmission grooves are provided on both sides of the transmission block 123. The corresponding transmission member is embedded in the corresponding transmission groove to form a linkage with the transmission block 123, and a clearance groove 41 is provided on the shielding cover 4 corresponding to the connecting rod 124, and the connecting rod 124 is slidably connected in the clearance groove 41. In specific implementation, when the gear 13 rotates, the transmission member can rotate along the hinge point of the gear 13. During the rotation, the end of the transmission member swings along a fan-shaped angle, which can be regarded as driving the transmission block 123 to move in a straight line within a certain range, thereby realizing the driving of the operation.

[0045] like Figure 1 and Figure 2 As shown, a stopper 125 is fixedly connected to the slide 121, and the stopper 125 is arranged along the length direction of the guide rail 12 and is slidably connected to the guide rail 12, and the stopper 125 is used to block the clearance groove 41. In specific implementation, the stopper 125 can move with the slide 121, and the stopper 125 can also always block the clearance groove 41 during the movement, thereby reducing the dust from passing through the clearance groove 41 and entering the shielding cover 4 during the movement of the stopper 125. The influence on the rotation of the gear 13 is further increased, and the rotation efficiency of the gear 13 is further increased.

[0046] like Figure 1 and Figure 2As shown, a baffle 42 is further provided on the lower side of the shielding cover 4. The baffle 42 is fixedly connected to the shielding cover 4, and an independent space is formed between the baffle 42 and the shielding cover 4. The baffle 42 is disposed on the upper side of the driving frame 2, and the driving frame 2 is completely shielded under the baffle 42. A relief groove 41 is also correspondingly provided on the baffle 42 for the connecting rod 124. During specific implementation, when part of the dust enters the shielding cover 4 through the relief groove 41, the baffle 42 can act as a second layer of protection to further block the dust, thereby reducing the influence of the dust entering the gear 13 on the rotation of the gear 13.

[0047] As Figure 1 and Figure 2 shown, the driving member 3 includes a cylinder. The cylinder is fixedly installed on the mounting plate 1, the driving frame 2 is fixedly connected to the piston rod of the cylinder, and guide rails 12 are also provided on the mounting plate 1 corresponding to the driving frame 2. The driving frame 2 is slidably connected to the corresponding guide rails 12. During specific implementation, one cylinder is provided corresponding to each of the guide rails 12 provided with the sliding seats 121, and the guide rails 12 inside the shielding cover 4 are disposed on both sides of the cylinder. The driving frame 2 can slide along the guide rails 12, and the piston rod of the cylinder can move along the length direction of the cylinder, so as to drive the sliding seat 121. In other embodiments, the driving member 3 can also be set as an oil cylinder, which can also play a driving role, but the driving cost is relatively high, and the oil is easy to overflow, which is likely to affect the operation of the chuck.

[0048] As Figure 2 and Figure 4 shown, the transmission member includes a transmission rod 131. One end of the transmission rod 131 is fixedly connected to the gear 13, and the other end of the transmission rod 131 is provided with a transmission head 132, and both sides of the transmission head 132 are arc-shaped.

[0049] As Figure 5 and Figure 6 shown, the side of the driving frame 2 facing the clamping hole 11 is set corresponding to the shape of the shielding cover 4, and the driving frame 2 can be in contact with the inner wall of the shielding cover 4. During specific implementation, since the shielding cover 4 completely shields the inside, the driving frame 2 is likely to be in contact with the inner wall of the shielding cover 4 during movement, thus forming interference. Therefore, the driving frame 2 needs to be set corresponding to the shape of the shielding cover 4.

[0050] As Figure 2 and Figure 3 shown, a blocking member 5 is provided at the position of the shielding cover 4 corresponding to the gear 13, and the blocking member 5 is used to form interference with the transmission member. During specific implementation, the shielding cover 4 is installed on the corresponding guide rails 12 of the driving frame 2 to improve the fixing stability.

[0051] Working principle: Pass the workpiece through the clamping hole 11, and then drive the driving frame 2 by the driving member 3 to push the gear 13 to rotate. After the gear 13 rotates, it can drive the symmetrically arranged sliding seats 121 on both sides of it to move, and the claw bodies 122 can move towards each other. Therefore, the claw bodies 122 can move towards each other synchronously under the drive of the gear 13, so as to complete the clamping of the object.

[0052] The above is the preferred embodiment of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A gear-linked chuck, comprising a mounting plate (1), wherein a clamping hole (11) is formed in the middle of the mounting plate (1), and is characterized in that: Guide rails (12) are arranged on four directions of the mounting plate (1), a slide seat (121) is arranged on the guide rails (12), the slide seat (121) is slidably connected to the guide rails (12), a claw body (122) is arranged on the slide seat (121), and the guide rails (12) are all arranged toward the clamping hole (11); The mounting plate (1) is also provided with a driving frame (2) and a driving member (3). The driving frame (2) is arranged at the lower side of the guide rail (12) and one driving member (3) is provided for each of the four guide rails (12). The driving frame (2) is arranged perpendicular to the guide rail (12) on the upper side thereof. The driving member (3) is used to drive the driving frame (2) to move along the length direction of the guide rail (12). Racks (21) are provided at both ends of the driving frame (2). A gear (13) is provided at both ends of each driving frame (2). The gear (13) is rotatably connected to the mounting plate (1). One end of the gear (13) is meshed with the rack (21). The other end of the gear (13) is provided with a transmission member. The transmission member is transmission-connected to the corresponding slide seats (121) at both ends of the driving frame (2). The gears (13) at both ends of the driving frame (2) rotate in opposite directions, and the transmission parts on the gears (13) at both ends of the driving frame (2) move in the same direction; The mounting plate (1) is provided with a shielding cover (4), the sliding seat (121) and the guide rail (12) are arranged on the upper side of the shielding cover (4), the driving frame (2) and the driving member (3) are arranged on the lower side of the shielding cover (4), the shielding cover (4) completely wraps the driving frame (2) and the driving member (3) in the shielding cover (4), the shielding cover (4) also shields the interior of the mounting plate (1) at the clamping hole (11), and the gear (13) is rotatably connected to the shielding cover (4); A transmission block (123) is arranged at the lower side of the slide seat (121), and the transmission block (123) is arranged inside the shielding cover (4). A connecting rod (124) is arranged between the transmission block (123) and the slide seat (121). One end of the connecting rod (124) is fixedly connected to the transmission block (123), and the other end of the connecting rod (124) is fixedly connected to the slide seat (121). The other end of the connecting rod (124) extends into the shielding cover (4) and is fixedly connected to the transmission block (123). A transmission groove is provided on the transmission block (123), and the transmission member is embedded in the transmission groove to form a linkage with the transmission block (123). A clearance groove (41) is provided on the shielding cover (4) corresponding to the connecting rod (124), and the connecting rod (124) is slidably connected in the clearance groove (41). The transmission member comprises a transmission rod (131), one end of the transmission rod (131) is fixedly connected to the gear (13), and the other end of the transmission rod (131) is provided with a transmission head (132), and both sides of the transmission head (132) are arranged in an arc shape.

2. The gear linkage chuck according to claim 1, characterized in that: A stopper (125) is also fixedly connected to the sliding seat (121). The stopper (125) is arranged along the guide rail (12) and is slidably connected to the guide rail (12). The stopper (125) is used to block the relief groove (41).

3. The gear linkage chuck according to claim 1, wherein: A baffle (42) is further arranged on the lower side of the shielding cover (4). The baffle (42) is arranged on the upper side of the driving frame (2). The baffle (42) completely shields the driving frame (2) on the lower side of the baffle (42). A relief groove (41) is also correspondingly formed in the baffle (42) for the connecting rod (124).

4. A gear linkage chuck according to claim 1, characterized in that: The driving member (3) includes a cylinder. The driving frame (2) is fixedly connected to the piston rod of the cylinder. A guide rail (12) is also arranged on the mounting disc (1) corresponding to the driving frame (2). The driving frame (2) is slidably connected to the corresponding guide rail (12).

5. A gear linkage chuck according to claim 1, wherein: One side of the driving frame (2) facing the clamping hole (11) is arranged corresponding to the shape of the shielding cover (4). The driving frame (2) can be in contact with the inner wall of the shielding cover (4).

6. The gear linkage chuck according to claim 1, wherein: A blocking member (5) is arranged at the position of the shielding cover (4) corresponding to the gear (13). The blocking member (5) is used to interfere with the transmission member.

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