Clamping assembly special for anti-falling mechanical part machining

Abstract

The utility model discloses a special clamping assembly for anti-drop mechanical part machining, which relates to the technical field of numerical control milling machines and comprises a fixed bottom plate, mounting racks are mounted on the left side and the right side of the top end of the fixed bottom plate, and pneumatic telescopic rods are arranged on the sides of the mounting racks. And an anti-falling mechanism for increasing the fitting degree with a workpiece is arranged on the inner side of the clamping plate. According to the anti-falling type clamping assembly special for mechanical part machining, a pushing rod is pushed to move through the output end of a pneumatic telescopic rod, and in the process that the pushing rod moves left and right in a mounting frame, a sliding block arranged outside the pushing rod in a sleeving mode slides on the outer side of the pushing rod due to limitation of a first hinge rod; and meanwhile, a second hinge rod hinged to the top end of the sliding block pushes the drawing rod front and back, so that a clamping plate installed at one end of the drawing rod can be synchronously pushed front and back, and basic clamping of the workpiece can be achieved through the clamping plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control milling machine technical field, concretely is a special clamping assembly of anti -drop mechanical part processing. BACKGROUND

[0002] In the process of machining mechanical parts on numerical control milling machine, ensuring the stable clamping of the parts is the key to guarantee the machining accuracy and efficiency, so it is necessary to fix the parts in position by using a special clamping assembly to reduce the shaking of the parts during machining; when in use, due to the problem of clamping position and force of the traditional clamping assembly during use, the parts may fall off during clamping and machining, which may affect the stability of the overall clamping and the subsequent machining efficiency.

[0003] In order to overcome the above-mentioned defects, the prior art (Chinese patent with publication number CN215356349U and publication date of 2021-12-31) discloses a clamping stable numerical control milling machine, which belongs to the field of numerical control machining, and comprises a fixed seat, a first clamping assembly capable of clamping a horizontal plate and a second clamping assembly capable of clamping a vertical plate, the fixed seat is horizontally arranged; the first clamping assembly comprises two clamping strips and a first driving member for driving the two clamping strips to move towards each other, the two clamping strips are respectively connected with the fixed seat in a sliding manner, and the sliding direction of the clamping strip is perpendicular to the length direction of the clamping strip; the second clamping assembly comprises two vertical clamping plates and a second driving member for driving the two clamping plates to move towards each other, the two clamping plates are respectively connected with the fixed seat in a sliding manner, and the bottom end of the clamping plate is detachably connected with the second driving member. The present application can simultaneously apply the clamps of the numerical control milling machine to the vertically placed and horizontally placed workpieces, thereby reducing the replacement frequency of the clamps of the numerical control milling machine.

[0004] The above-mentioned mechanism realizes clamping in the longitudinal and transverse directions by cooperating between the first clamping assembly and the second clamping assembly, but in actual use, the parts may fall off from the clamping assembly during machining due to vibration and long-time extrusion, which may affect the stability of the overall parts during machining. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a special clamping assembly for anti-drop mechanical part machining to solve the problem that the traditional clamping assembly may cause the parts to fall off during clamping and machining due to the problem of clamping position and force, which may affect the stability of the overall clamping and the subsequent machining efficiency.

[0006] To achieve the above object, the utility model provides following technical scheme: A special clamping assembly for anti -drop mechanical part processing, including fixed bottom plate, both sides of fixed bottom plate top all are installed with mounting bracket, and the side of mounting bracket is provided with pneumatic telescopic link, the output end of pneumatic telescopic link extends to the inside of mounting bracket and is installed with propeller, and the both ends of propeller outside are all set with sliding block, the top of sliding block is rotatably connected with second articulated link, and the bottom of second articulated link is rotatably connected with pull -out link, the side extension of pull -out link to the outside of mounting bracket and is installed with clamping plate, the side of sliding block top away from second articulated link is rotatably connected with first articulated link, and the inner side of clamping plate is provided with anti -drop mechanism for increasing the adhesion of work piece, the anti -drop mechanism includes flexible clamping layer, and the inner side of clamping plate is provided with flexible clamping layer, the middle position of fixed bottom plate top is rotatably connected with rotary plate, and the bottom of rotary plate is installed with the rotary mechanism for adjusting the angle of rotary plate.

[0007] Further, the front and rear ends of the clamping plate are provided with elastic air bags, and the bottom end of the elastic air bag is attached to the top end of the fixed bottom plate, and the front and rear ends of the elastic air bag are respectively provided with connecting plates, and the side of the connecting plate is communicated with the flexible clamping layer through a hose.

[0008] Further, one end of the second articulated link is rotatably connected to the top end of the sliding block, and the other end of the second articulated link is rotatably connected to the top end of the pull-out link, one end of the first articulated link is rotatably connected to the top end of the sliding block, and the other end of the first articulated link is rotatably connected to the side of the top end of the mounting bracket.

[0009] Further, the inner side of the flexible clamping layer is arc-shaped, and the flexible clamping layer is symmetric about the vertical central axis of the fixed bottom plate.

[0010] Further, one end of the connecting plate is provided with a connecting spring, and the connecting spring is arranged on the left and right sides of the elastic air bag.

[0011] Further, the rotary mechanism includes a drive motor, and the drive motor is arranged below the fixed bottom plate, the output end of the drive motor is provided with a driving gear, and the middle position of the bottom end of the rotary plate is fixedly connected with a driven gear engaged with the driving gear.

[0012] Further, a slide rail is formed in the bottom end of the fixed bottom plate, and a slide block matched with the slide rail is installed at the top end of the driven gear, and the slide block and the slide rail are slidably connected between the fixed bottom plate and the driven gear to form a sliding mechanism.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The output end of the pneumatic telescopic rod pushes the advancing rod to move, and the advancing rod moves left and right in the inside of the mounting frame, the sliding block sleeved outside the advancing rod slides outside the advancing rod due to the limitation of the first hinged rod, and the second hinged rod hinged at the top end of the sliding block pushes the pull rod forward and backward, so that the clamping plate installed at one end of the pull rod is synchronously pushed forward and backward, and the clamping plate can clamp the workpiece.

[0015] Further, the inside of the clamping plate is arc-shaped, so that the clamping plate can better adhere to the outside of the workpiece, increase the contact area, and further make the workpiece processing more stable and reduce the position deviation.

[0016] Further, the output end of the pneumatic telescopic rod pushes the advancing rod to move, and the advancing rod moves left and right in the inside of the mounting frame, the sliding block sleeved outside the advancing rod slides outside the advancing rod due to the limitation of the first hinged rod, and the second hinged rod hinged at the top end of the sliding block pushes the pull rod forward and backward, so that the clamping plate installed at one end of the pull rod is synchronously pushed forward and backward, and the clamping plate can clamp the workpiece.

[0017] 2. The rotation of the output end of the driving motor can drive the driving gear to rotate, the driving gear is in meshing with the driven gear during rotation, so that the driven gear is synchronously driven to rotate, and the driven gear drives the rotating plate to rotate at the same time during rotation, and the rotating plate drives the workpiece placed at the top end to rotate during rotation, so that the machining assembly on the numerical control milling machine processes different angles on the surface of the workpiece.

[0018] Further, the rotating plate is driven to rotate, and the sliding blocks arranged on the left and right sides of the bottom end of the rotating plate are in sliding connection with the slide rails, so that the rotating plate drives the sliding blocks to slide in the slide rails, and the rotation of the rotating plate is more stable, and the applicability of the whole during use is increased. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a front view structural schematic diagram of the utility model.

[0020] Figure 2 It is a front view structural schematic diagram of the utility model.

[0021] Figure 3 It is a front view structural schematic diagram of the utility model.

[0022] Figure 4This is a partial structural diagram of the anti-fall-off mechanism of this utility model.

[0023] Figure 5 This is an exploded structural diagram of the rotating mechanism of this utility model.

[0024] Figure 6 This is a partial structural diagram of the anti-fall-off mechanism of this utility model.

[0025] In the diagram: 1. Fixed base plate; 2. Mounting bracket; 3. Pneumatic telescopic rod; 4. Push rod; 5. Sliding block; 6. First hinge rod; 7. Second hinge rod; 8. Pull-out rod; 9. Clamping plate; 10. Flexible clamping layer; 11. Elastic airbag; 12. Connecting plate; 13. Connecting spring; 14. Drive motor; 15. Driving gear; 16. Driven gear; 17. Rotating plate; 18. Slider; 19. Slide rail. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1: As Figure 1 , Figure 2 , Figure 4 and Figure 6 The technical solution shown addresses the problem of uneven advancement of the clamping mechanism on both sides during clamping, leading to workpiece displacement during clamping. This specialized clamping assembly for anti-detachment machining of mechanical parts discloses a clamping mechanism including a fixed base plate 1. Mounting brackets 2 are installed on both the left and right sides of the top of the fixed base plate 1. Pneumatic telescopic rods 3 are provided on the sides of the mounting brackets 2. The output end of the pneumatic telescopic rod 3 extends into the interior of the mounting bracket 2 and is fitted with a push rod 4. Sliding blocks 5 are sleeved on both the front and rear ends of the push rod 4, with the top of the sliding blocks 5 rotatably connected to… There is a second hinge rod 7, and the bottom end of the second hinge rod 7 is rotatably connected to a pull rod 8. The side of the pull rod 8 extends to the outside of the mounting frame 2 and is fitted with a clamping plate 9. One end of the second hinge rod 7 is rotatably connected to the top of the sliding block 5, and the other end of the second hinge rod 7 is rotatably connected to the top of the pull rod 8. One end of the first hinge rod 6 is rotatably connected to the top of the sliding block 5, and the other end of the first hinge rod 6 is rotatably connected to the side of the top of the mounting frame 2. The inner side of the flexible clamping layer 10 is arc-shaped, and the flexible clamping layer 10 is symmetrical about the central axis of the vertical direction of the fixed base plate 1.

[0028] In this case, the workpiece to be processed is placed on the top end of the rotating plate 17, and the output end of the pneumatic telescopic rod 3 pushes the push rod 4 to move. During the left and right movement of the push rod 4 inside the mounting frame 2, the sliding block 5 outside the push rod 4 will slide outside the push rod 4 due to the limitation of the first hinge rod 6, and the second hinge rod 7 hinged at the top end of the sliding block 5 will push the pull rod 8 forward and backward, so that the clamping plate 9 installed at one end of the pull rod 8 will be synchronously pushed forward and backward. The clamping plate 9 can realize basic clamping of the workpiece; the inner side of the clamping plate 9 is arc-shaped, so that the clamping plate 9 can better fit the outer side of the workpiece, increase the contact area, and thus make the workpiece processing more stable and reduce the position deviation; by using two pneumatic telescopic rods 3 to synchronously push the push rod 4 and make the second hinge rod 7 angularly deflect, the pull rod 8 is pushed and clamped by the clamping plate 9, which can increase the synchronicity of the clamping mechanism during clamping, thereby effectively reducing the position deviation of the workpiece during clamping due to the different starting efficiencies of the driving assemblies.

[0029] Embodiment two: as shown in Figure 1 , Figure 2 , Figure 4 and Figure 6 The technical scheme is used to solve the problem of traditional clamping assembly in use due to clamping position and force. In the process of clamping and processing parts, the parts themselves are prone to falling off, which affects the stability of the overall clamping and the subsequent processing efficiency. The anti-falling mechanical part processing special clamping assembly discloses an anti-falling mechanism. The top end of the sliding block 5 away from the second hinge rod 7 is rotatably connected with the first hinge rod 6, and the inner side of the clamping plate 9 is provided with an anti-falling mechanism for increasing the adhesion with the workpiece. The anti-falling mechanism includes a flexible clamping layer 10, and the flexible clamping layer 10 is arranged on the inner side of the clamping plate 9. The front and rear ends of the clamping plate 9 are provided with elastic air bags 11, and the bottom end of the elastic air bag 11 is attached to the top end of the fixed bottom plate 1. The front and rear ends of the elastic air bag 11 are respectively provided with connecting plates 12, and the side of the connecting plate 12 is connected with the flexible clamping layer 10 through a hose. One end between the connecting plates 12 is provided with a connecting spring 13, and the connecting spring 13 is arranged on the left and right sides of the elastic air bag 11.

[0030] In this case, the output end of the pneumatic telescopic rod 3 will synchronously extrude the connecting plate 12 in the process of advancing the advancing rod 4, and the elastic air bag 11 at one end of the connecting plate 12 will be extruded and output the gas to the inside of the flexible clamping layer 10 through the hose when the connecting plate 12 is extruded, and the flexible clamping layer 10 itself has a certain elasticity, so that the inside of the flexible clamping layer 10 can be attached to the special-shaped position of the workpiece, and when the flexible clamping layer 10 is filled with gas, the special-shaped position between the flexible clamping layer 10 and the workpiece can be attached more tightly, so that the clamping of the workpiece can also be more stable, effectively realizing the anti-falling protection of the workpiece in the clamping process; the connecting plate 12 is connected through the connecting spring 13, and when the elastic air bag 11 is extruded, the elastic air bag 11 is reset by using the elasticity of the elastic air bag 11 and the elasticity of the connecting spring 13, and when the elastic air bag 11 is reset, the gas in the flexible clamping layer 10 is reversely extracted through the hose, so that the attachment between the flexible clamping layer 10 and the workpiece is reduced, the workpiece is quickly taken out, and the situation that the workpiece and the flexible clamping layer 10 are tightly attached and cannot be taken out is avoided.

[0031] Embodiment three: as shown in the technical scheme of Figure 1 、 Figure 2 、 Figure 3 and Figure 5 , in order to solve the problem that the angle of the workpiece is not convenient to adjust during clamping, and other positions on the surface of the workpiece are not convenient to process: the special clamping assembly for anti-falling mechanical part machining discloses a rotating assembly, a rotating plate 17 is rotatably connected to the middle position at the top end of the fixed bottom plate 1, and a rotating mechanism for adjusting the angle of the rotating plate 17 is installed at the bottom end of the rotating plate 17; the rotating mechanism comprises a driving motor 14, and the driving motor 14 is arranged below the fixed bottom plate 1; the output end of the driving motor 14 is provided with a driving gear 15, and the middle position at the bottom end of the rotating plate 17 is fixedly connected with a driven gear 16 engaged with the driving gear 15; a sliding rail 19 is formed at the bottom end of the fixed bottom plate 1, and a sliding block 18 matched with the sliding rail 19 is installed at the top end of the driven gear 16; the sliding block 18 and the sliding rail 19 are slidably connected between the fixed bottom plate 1 and the driven gear 16 to form a sliding mechanism.

[0032] In this case, when the workpiece is processed, the rotation of the motor 14 output end can drive the driving gear 15 to rotate, the driving gear 15 is engaged with the driven gear 16 during rotation, so that the driven gear 16 is synchronously driven to rotate, the driven gear 16 drives the rotating plate 17 to rotate when rotating, the rotating plate 17 drives the workpiece placed at the top to rotate when rotating, which is convenient for the machining assembly on the numerical control milling machine to process the different angles of the workpiece surface; the rotating plate 17 is driven to rotate, and the sliding block 18 on the left and right sides of the bottom of the rotating plate 17 is connected with the slide rail 19 to form a sliding connection, so that the rotating plate 17 drives the sliding block 18 to slide in the slide rail 19, and the rotation of the rotating plate 17 is more stable, and the applicability of the whole in use is increased.

[0033] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A special clamping assembly for anti-dropping mechanical part machining, comprising a fixed base plate (1), mounting racks (2) are installed on the left and right sides of the top end of the fixed base plate (1), pneumatic telescopic rods (3) are arranged on the side of the mounting racks (2), the output ends of the pneumatic telescopic rods (3) extend to the inside of the mounting racks (2) and are installed with push rods (4), sliding blocks (5) are sleeved on the front and rear ends of the outside of the push rods (4), second hinge rods (7) are rotatably connected to the top end of the sliding blocks (5), pull rods (8) are rotatably connected to the bottom end of the second hinge rods (7), and clamping plates (9) are installed on the side of the outside of the pull rods (8). characterized in that A first hinge rod (6) is rotatably connected to the side of the top end of the sliding block (5) away from the second hinge rod (7), and an anti-dropping mechanism for increasing the adhesion to the workpiece is arranged on the inner side of the clamping plate (9), wherein the anti-dropping mechanism comprises a flexible clamping layer (10) arranged on the inner side of the clamping plate (9). A rotating plate (17) is rotatably connected to the middle position of the top end of the fixed base plate (1), and a rotating mechanism for adjusting the angle of the rotating plate (17) is installed on the bottom end of the rotating plate (17).

2. A special purpose clamping assembly for use in the machining of mechanical parts which prevents the parts from coming loose, as claimed in claim 1, characterized in that: Elastic air bags (11) are arranged on the front and rear ends of the clamping plate (9), the bottom end of the elastic air bag (11) is attached to the top end of the fixed base plate (1), and connecting plates (12) are installed on the front and rear ends of the elastic air bag (11), respectively, and the side of the connecting plate (12) is connected to the flexible clamping layer (10) through a hose.

3. A special purpose anti-ejection mechanical component machining fixture assembly as claimed in claim 2 wherein: One end of the second hinge rod (7) is rotatably connected to the top end of the sliding block (5), the other end of the second hinge rod (7) is rotatably connected to the top end of the pull rod (8), one end of the first hinge rod (6) is rotatably connected to the top end of the sliding block (5), and the other end of the first hinge rod (6) is rotatably connected to the side of the top end of the mounting rack (2).

4. A special purpose anti-ejection mechanical parts machining fixture assembly as claimed in claim 3 wherein: The inner side of the flexible clamping layer (10) is arc-shaped, and the flexible clamping layer (10) is symmetric about the vertical central axis of the fixed base plate (1).

5. A special purpose clamping assembly for use in the machining of mechanical parts which prevents the parts from coming loose, as set forth in claim 4, characterized in that: A connecting spring (13) is installed on one end between the connecting plates (12), and the connecting spring (13) is arranged on the left and right sides of the elastic air bag (11), respectively.

6. A special purpose anti-ejection mechanical parts machining fixture assembly as claimed in claim 1 wherein: The rotating mechanism comprises a driving motor (14), the driving motor (14) is arranged below the fixed base plate (1), the output end of the driving motor (14) is installed with a driving gear (15), and the middle position of the bottom end of the rotating plate (17) is fixedly connected with a driven gear (16) engaged with the driving gear (15).

7. A anti-dropping special purpose clamping assembly for machining of mechanical parts as claimed in claim 6 wherein: A slide rail (19) is formed on the bottom end of the fixed base plate (1), a slide block (18) matched with the slide rail (19) is installed on the top end of the driven gear (16), and the fixed base plate (1) and the driven gear (16) are connected through the sliding connection of the slide block (18) and the slide rail (19) to form a sliding mechanism.

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