Metalworking positioning and feeding fixtures

Abstract

This utility model relates to the field of metal processing technology, and in particular to a metal processing positioning and feeding fixture, including a frame and grippers. Two bar slides are mounted on the top rear side of the frame, and two lifting components are mounted on the upper side of the frame. Each lifting component has a fixed seat on its top, and a fixed frame is mounted on the top of each fixed seat. A bidirectional lead screw is rotatably connected inside the fixed frame. A rotating component is mounted on the front side of the fixed frame to drive the bidirectional lead screw to rotate. Two movable seats are threadedly connected to the outer side of the bidirectional lead screw, and grippers are mounted on the top of each movable seat. A linkage component is provided inside the frame to drive the lifting components to move back and forth. A drive component is mounted on the rear side of the frame. This utility model, by setting grippers with adjustable spacing, can quickly adjust the clamping spacing according to changes in the diameter of the metal bars, and can also adapt to changes in the number of bars to be fed in different batches of operations.

Description

Technical Field

[0001] This utility model relates to the field of metal processing technology, and in particular to a positioning and feeding fixture for metal processing. Background Technology

[0002] Metalworking positioning and feeding fixtures are specialized devices used for precise positioning and automatic conveying of materials or workpieces during metalworking processes. They are typically used in conjunction with machine tools (such as CNC machines, punch presses, laser cutting machines, etc.) to improve production efficiency, ensure processing accuracy, and reduce manual operation.

[0003] Existing metal processing positioning and feeding fixtures typically employ a fixed gripper design, which cannot flexibly adjust the gripping distance according to the diameter or shape of the metal bar. This results in poor adaptability to workpieces of different specifications. Such a rigid structure is prone to positioning deviation, unstable feeding, and even damage to the workpiece surface when processing variable diameter bars or non-standard parts, affecting processing accuracy and efficiency.

[0004] Therefore, in view of the problem that the existing metal processing positioning and feeding fixtures are usually fixed in their grippers and cannot be flexibly adjusted in terms of spacing, resulting in low compatibility with metal bars, a new metal processing positioning and feeding fixture can be designed. Utility Model Content

[0005] In order to overcome the problem that the existing metal processing positioning and feeding fixtures usually have fixed grippers that cannot be flexibly adjusted in terms of spacing, resulting in low compatibility with metal bars.

[0006] The technical solution of this utility model is as follows: a metal processing positioning and feeding fixture, including a frame; and also including grippers. Two bar slides are installed on the top rear side of the frame, and two lifting components are installed on the upper side of the frame. A fixed seat is installed on the top of each lifting component, and a fixed frame is installed on the top of the fixed seat. A bidirectional lead screw is rotatably connected inside the fixed frame. A rotating component is installed on the front side of the fixed frame to drive the bidirectional lead screw to rotate. Two movable seats are threadedly connected to the outer side of the bidirectional lead screw. Grippers are installed on the top of each movable seat. A linkage component is provided on the inner side of the frame to drive the lifting components to move back and forth. A drive component is installed on the rear side of the frame to drive the linkage component to rotate. Two feeding components are installed on the top of the frame.

[0007] Preferably, by setting a rotating component, a bidirectional lead screw can be driven to rotate during operation. When the bidirectional lead screw rotates, it can drive two moving seats that are threaded with it to move synchronously relative to each other, thereby adjusting the distance between the two grippers. This allows the grippers to be adjusted to a suitable distance according to the diameter of the metal bar and the number of bars to be fed in a single operation, improving the stability during feeding. This solves the problem that the grippers of existing metal processing positioning and feeding fixtures are usually fixed in setting and cannot be flexibly adjusted in distance, resulting in low compatibility with metal bars.

[0008] Preferably, the rotating assembly includes a handle and a protective sleeve. A handle is installed on the front side of both fixed frames, and a protective sleeve is fitted on the outer side of both handles. The handle is used to drive the bidirectional lead screw to rotate.

[0009] Preferably, each of the two fixed frames is provided with two limiting rods inside, and when the bidirectional screw rotates, it drives the moving seat to slide along the limiting rods.

[0010] Preferably, the lifting assembly includes guide rails, first racks, a fixing plate, and a cylinder. Two sets of guide rails are installed on the top of the frame, and two first racks are slidably connected on each set of guide rails. A fixing plate is installed on the top of the corresponding two first racks, and a cylinder is installed on the top of the fixing plate. The top of the cylinder is fixed to the corresponding fixing seat, and the cylinder is used to drive the fixing seat to lift.

[0011] Preferably, the linkage assembly includes a drive shaft, a first gear, and a second gear. The drive shaft is rotatably connected to the inner side of the frame, and a first gear is installed on the outer side of the drive shaft at the position corresponding to the four first racks. The first gear meshes with the corresponding first rack, and a second gear is installed on the left end of the outer side of the drive shaft.

[0012] Preferably, the drive assembly includes an electric push rod and a second rack. The electric push rod is mounted on the rear side of the frame, and the output end of the electric push rod is mounted on the second rack. The electric push rod is used to drive the second rack to move back and forth, and the second rack meshes with the second gear.

[0013] Preferably, the feeding assembly includes positioning seats, supports, idlers and a drive motor. Two positioning seats are installed on the top of the frame, and two supports are installed on the top of each positioning seat. Idler is rotatably connected between the two supports. A drive motor is installed on the front side of the left front support, and the drive motor is used to drive the idler on the left side to rotate.

[0014] The beneficial effects of this utility model are:

[0015] With adjustable grippers, the clamping distance can be quickly adjusted according to changes in the diameter of the metal bar. It can also adapt to varying feed quantities for different batches. This intelligent adjustment significantly improves the stability of the feeding process, effectively preventing problems such as bar slippage, offset, or jamming caused by improper clamping distance. Whether handling batch operations of a single specification or production scenarios requiring frequent switching between bars of different diameters, the adaptive grippers ensure precise and reliable clamping, thereby reducing material loss and improving feeding efficiency. This design also reduces operational complexity, allowing operators to meet diverse production needs without frequent fixture changes, ensuring operational safety while improving overall production efficiency. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the material lifting component of this utility model;

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the feeding component of this utility model;

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the bidirectional lead screw of this utility model;

[0020] Figure 5 The diagram shown is a three-dimensional structural schematic of the drive component of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Bar stock slide; 31. Guide rail; 32. First rack; 33. Fixing plate; 34. Cylinder; 4. Fixing seat; 5. Fixing frame; 6. Double-acting screw; 71. Handle; 72. Protective sleeve; 8. Moving seat; 9. Gripper; 10. Limiting rod; 111. Drive shaft; 112. First gear; 113. Second gear; 121. Electric push rod; 122. Second rack; 131. Positioning seat; 132. Support; 133. Idler roller; 134. Drive motor. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5This utility model provides an embodiment of a metal processing positioning and feeding fixture, including a frame 1 and grippers 9. Two bar stock slides 2 are installed on the top rear side of the frame 1. Two lifting assemblies are installed on the upper side of the frame 1. A fixed seat 4 is installed on the top of each lifting assembly. A fixed frame 5 is installed on the top of each fixed seat 4. A bidirectional lead screw 6 is rotatably connected inside the fixed frame 5. A rotating assembly is installed on the front side of the fixed frame 5 to drive the bidirectional lead screw 6 to rotate. Two movable seats 8 are threadedly connected to the outer side of the bidirectional lead screw 6. Grippers 9 are installed on the top of each movable seat 8. A linkage assembly is provided inside the frame 1 to drive the lifting assembly. The components move back and forth. A drive component is installed on the rear side of frame 1. The drive component is used to drive the linkage component to rotate. Two feeding components are installed on the top of frame 1. By configuring the rotary drive component, the bidirectional ball screw can be driven to rotate during the operation of the equipment. When the bidirectional ball screw rotates, it can synchronously drive two sliding modules that form a precision thread engagement with it to achieve opposite displacement, thereby accurately adjusting the center distance between the two clamping mechanisms. This adjustment mechanism can adjust the spacing of the clamping mechanisms to the optimal working state according to the outer diameter of the metal bar to be processed and the feeding quantity requirements of each processing step, effectively improving the operational stability and positioning accuracy of the automatic feeding system.

[0024] Please see Figure 1 , Figure 2 and Figure 4 In this embodiment, the rotating assembly includes a handle 71 and a protective sleeve 72. A handle 71 is installed on the front side of each of the two fixed frames 5, and a protective sleeve 72 is fitted over the outer side of each handle 71. The handle 71 is used to drive the bidirectional lead screw 6 to rotate. By providing the handle 71, the operator can grasp and rotate the handle 71, thereby driving the bidirectional lead screw 6 to rotate. Two limiting rods 10 are provided inside each of the two fixed frames 5. When the bidirectional lead screw 6 rotates, it drives the movable seat 8 to slide along the limiting rods 10. By providing the limiting rods 10, the direction of movement of the movable seat 8 can be restricted, improving the movement... The stability of the movement of the seat 8 is ensured by the lifting assembly, which includes a guide rail 31, a first rack 32, a fixing plate 33, and a cylinder 34. Two sets of guide rails 31 are installed on the top of the frame 1. Two first racks 32 are slidably connected to each of the two sets of guide rails 31. A fixing plate 33 is installed on the top of the corresponding two first racks 32. A cylinder 34 is installed on the top of the fixing plate 33. The top of the cylinder 34 is fixed to the corresponding fixed seat 4. The cylinder 34 is used to drive the fixed seat 4 to rise and fall. By setting the cylinder 34, the cylinder 34 can drive the gripper 9 to move upward when lifting, thereby lifting the metal bar.

[0025] Please see Figures 1-5In this embodiment, the linkage component includes a drive shaft 111, a first gear 112, and a second gear 113. The drive shaft 111 is rotatably connected to the inner side of the frame 1. The first gear 112 is installed on the outer side of the drive shaft 111 at the positions corresponding to the four first racks 32. The first gear 112 meshes with the corresponding first rack 32. The second gear 113 is installed on the left end of the outer side of the drive shaft 111. By setting the drive shaft 111, when the drive shaft 111 rotates, it drives the first gear 112 to rotate synchronously. The first gear 112 drives the first rack 32 meshing with it to move back and forth under the restriction of the guide rail 31, thereby driving the gripper 9 to lift and move the material onto the feeding component. The drive component includes an electric push rod 121 and a second rack 122. The electric push rod 121 is installed on the rear side of the frame 1. The output end of the electric push rod 121 is installed with the second rack 122. The electric push rod 121 is used to drive the second rack 122 to move back and forth. 22 meshes with the second gear 113. An electric push rod 121 is provided, and during operation, its output end drives the second rack 122 to move back and forth. The second rack 122, in conjunction with the second gear 113, drives the transmission shaft 111 to rotate. The feeding assembly includes a positioning seat 131, a support 132, a roller 133, and a drive motor 134. Two positioning seats 131 are mounted on the top of the frame 1, and two supports 132 are mounted on the top of each of the two positioning seats 131. A roller 133 is rotatably connected between the two. A drive motor 134 is installed on the front side of the left front support 132. The drive motor 134 is used to drive the left roller 133 to rotate. By setting the drive motor 134, the gripper 9 moves the bar to the upper side of the roller 133, and then the cylinder 34 retracts, placing the bar on the roller 133. Then the drive motor 134 is started, and the drive motor 134 drives the left roller 133 to rotate. Under the action of friction, the bar is fed to the left.

[0026] During operation, the operator first rotates the handle 71 on the front side of the fixed frame 5 according to the diameter of the metal bar and the number of bars to be fed at one time. This rotates the double-acting screw 6, which drives the two moving seats 8 connected to it to move relative to each other along the limiting rod 10 inside the fixed frame 5. This adjusts the distance between the two grippers 9 to improve fit and feeding stability. Subsequently, the metal bar is placed on the bar slide 2 on the rear side of the top of the frame 1. The cylinder 34 on the top of the frame 1 is lifted, which drives the grippers 9 to move upward and lift the bar through the fixed seat 4. Then, the electric push rod 121 on the rear side of the frame 1 pushes the second rack 122 to move back and forth. The first gear 112 on the transmission shaft 111 rotates by meshing with the second gear 113. The first gear 112 on the transmission shaft 111 meshes with the first rack 32 on the guide rail 31, causing the first rack 32 to slide back and forth on the guide rail 31. This causes the cylinder 34, the fixed seat 4, and the gripper 9 to move back and forth through the fixed plate 33, positioning the bar material at the feeding position. When the bar material moves to the top of the frame 1, the cylinder 34 retracts, and the bar material falls onto the roller 133. At this time, the drive motor 134 starts, driving the roller 133 to rotate. Under the action of friction, the bar material is fed to the left to complete the processing.

[0027] Through the above steps, by using a rotating component as a power source, the bidirectional lead screw 6 is driven to rotate during operation. Due to the threaded structure of the bidirectional lead screw 6, its rotation can simultaneously drive the two mating moving seats 8 to move in opposite directions, realizing precise adjustment of the gap between the grippers 9. This design can quickly adjust the working distance between the grippers 9 according to the metal bars of different diameters and the number of bars required for each feeding operation, ensuring stable clamping of the bars during the feeding process. Through this adjustable clamping mechanism, the adaptability and reliability of the automated feeding system are effectively improved, thereby solving the problem that the existing metal processing positioning feeding fixtures usually have fixed grippers 9, which cannot flexibly adjust the gap, resulting in low compatibility with metal bars.

Claims

1. A metal processing positioning and feeding fixture, comprising a frame (1); characterized in that: It also includes grippers (9), two bar slides (2) are installed on the top rear side of the frame (1), two lifting components are installed on the upper side of the frame (1), a fixed seat (4) is installed on the top of the two lifting components, a fixed frame (5) is installed on the top of the fixed seat (4), a double-acting screw (6) is rotatably connected inside the fixed frame (5), a rotating component is installed on the front side of the fixed frame (5), the rotating component is used to drive the double-acting screw (6) to rotate, two moving seats (8) are threadedly connected to the outer side of the double-acting screw (6), grippers (9) are installed on the top of the two moving seats (8), a linkage component is provided on the inner side of the frame (1), the linkage component is used to drive the lifting components to move back and forth, a drive component is installed on the rear side of the frame (1), the drive component is used to drive the linkage component to rotate, and two feeding components are installed on the top of the frame (1).

2. The metal processing positioning and feeding fixture according to claim 1, characterized in that: The rotating assembly includes a handle (71) and a sleeve (72). The front sides of the two fixed frames (5) are each equipped with a handle (71), and the outer sides of the two handles (71) are each fitted with a sleeve (72). The handles (71) are used to drive the bidirectional lead screw (6) to rotate.

3. The metal processing positioning and feeding fixture according to claim 1, characterized in that: Two limiting rods (10) are provided inside each of the two fixed frames (5). When the bidirectional screw (6) rotates, it drives the moving seat (8) to slide along the limiting rods (10).

4. The metal processing positioning and feeding fixture according to claim 1, characterized in that: The lifting assembly includes a guide rail (31), a first rack (32), a fixing plate (33), and a cylinder (34). Two sets of guide rails (31) are installed on the top of the frame (1). Two first racks (32) are slidably connected on each of the two sets of guide rails (31). A fixing plate (33) is installed on the top of the corresponding two first racks (32). A cylinder (34) is installed on the top of the fixing plate (33). The top of the cylinder (34) is fixed to the corresponding fixing seat (4). The cylinder (34) is used to drive the fixing seat (4) to lift.

5. The metal processing positioning and feeding fixture according to claim 4, characterized in that: The linkage assembly includes a drive shaft (111), a first gear (112), and a second gear (113). The drive shaft (111) is rotatably connected to the inner side of the frame (1). The first gear (112) is installed on the outer side of the drive shaft (111) at the positions corresponding to the four first racks (32). The first gear (112) meshes with the corresponding first rack (32). The second gear (113) is installed on the left side of the outer side of the drive shaft (111).

6. The metal processing positioning and feeding fixture according to claim 5, characterized in that: The drive assembly includes an electric push rod (121) and a second rack (122). The electric push rod (121) is mounted on the rear side of the frame (1). The output end of the electric push rod (121) is equipped with the second rack (122). The electric push rod (121) is used to drive the second rack (122) to move back and forth. The second rack (122) meshes with the second gear (113).

7. The metal processing positioning and feeding fixture according to claim 1, characterized in that: The feeding assembly includes a positioning seat (131), a support (132), a roller (133), and a drive motor (134). Two positioning seats (131) are installed on the top of the frame (1), and two supports (132) are installed on the top of each of the two positioning seats (131). A roller (133) is rotatably connected between the two supports (132). A drive motor (134) is installed on the front side of the left front support (132). The drive motor (134) is used to drive the left roller (133) to rotate.

Images