Small long-arm stabilizing gripping mechanism

Abstract

This utility model discloses a small, long-arm, stable clamping mechanism, relating to the field of material clamping. It includes a lower push rod, an upper push rod, a fixing component, a gear, and a cylinder. The fixing component has an upper and a lower sliding track arranged parallel to each other. A cylinder mounting plate is connected to the fixing component. The piston rod of the cylinder is connected to one end of the upper push rod, causing the upper push rod to slide along the upper sliding track. The other end of the upper push rod extends out of the upper sliding track and is fitted with a front gripper. The upper push rod has an upper toothed groove located away from the front gripper, and the lower push rod has a lower toothed groove at a corresponding position. The gear is rotatably connected to the fixing component via a gear shaft, with the upper and lower toothed grooves meshing on the upper and lower sides of the gear, respectively. This allows the upper push rod to slide in the opposite direction along the lower sliding track when it slides. A rear gripper is installed at the end of the lower push rod away from the lower toothed groove. This utility model utilizes the principle of opposite motion after the gear and double rack mesh, and the guide groove of the rack provides sufficient rigidity and depth.

Description

Technical Field

[0001] This utility model relates to the field of material clamping, specifically to a small long-arm stable clamping mechanism. Background Technology

[0002] In the manufacturing of hardware and plastic products, stamping dies and cutting dies are commonly used. Existing cutting dies require the product to be removed after cutting, but due to space constraints, both manual removal and the use of existing clamps are inefficient and prone to instability in separation and clamping. Therefore, a clamping mechanism with a compact structure, high versatility, stable and reliable clamping, and sufficient depth and rigidity needs to be designed. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a small long-arm stable clamping mechanism. It utilizes the principle of opposite motion after gears and double racks mesh, and the guide groove of the rack provides sufficient rigidity and depth to flatten the workpiece in the thickness direction, thereby realizing clamping operations in narrow spaces.

[0004] The purpose of this utility model is achieved through the following technical solution: This small long-arm stable clamping mechanism includes a lower push rod, an upper push rod, a fixing component, a gear, and a cylinder. The fixing component has an upper slide rail and a lower slide rail arranged parallel to each other vertically. A cylinder fixing plate for mounting the cylinder is connected to the fixing component. The piston rod of the cylinder is connected to one end of the upper push rod, causing the upper push rod to slide along the upper slide rail. The other end of the upper push rod extends out of the upper slide rail and is fitted with a front gripper. The upper push rod has an upper tooth groove located away from the front gripper, and the lower push rod has a lower tooth groove located at a position corresponding to the upper tooth groove. The gear is rotatably connected to the fixing component via a gear shaft, and the upper and lower tooth grooves mesh with the upper and lower sides of the gear, respectively. This allows the upper push rod to slide in the opposite direction along the lower slide rail when it slides. A rear gripper is installed at the end of the lower push rod away from the lower tooth groove, thus achieving the clamping or release of the product.

[0005] As a further technical solution, a U-shaped groove is opened at the end of the upper push rod near the cylinder, a floating joint is installed on the piston rod of the cylinder, a hinge pin is passed through the floating joint, and snap rings are set at both ends of the hinge pin to position it with the floating joint. The hinge pin slides along the U-shaped groove.

[0006] As a further technical solution, a notch is made on the side of the slide track near the front gripper for installing the rear gripper. When the rear gripper slides with the push rod, it is limited by the notch.

[0007] As a further technical solution, two bearing seats are symmetrically arranged on the fixing component for mounting the bearing. A shaft hole is opened in the center of each bearing seat, and the gear shaft passes through the shaft hole and is supported on the fixing component by the bearing.

[0008] As a further technical solution, the front gripper is connected and fixed to the upper push rod by a positioning pin, and the rear gripper is connected and fixed to the lower push rod by a positioning pin.

[0009] The beneficial effects of this utility model are as follows:

[0010] 1. By using the opposing motion provided by gear meshing, the clamping parts are narrowed and extended, enabling them to perform clamping actions in narrow spaces and spaces of a certain depth;

[0011] 2. The fasteners provide effective length and rigidity, giving the grippers good rigidity and improving stability during gripping and releasing;

[0012] 3. A notch is made in the slide rail to install the rear gripper, making the structure compact. The gripper length and size can be adjusted according to the machining ratio, resulting in higher positioning accuracy. Attached Figure Description

[0013] Figure 1 This is a top view of the structure of this utility model.

[0014] Figure 2 for Figure 1 AA sectional view.

[0015] Figure 3 for Figure 2 A magnified view of a portion of region B in the middle.

[0016] Figure 4 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 5 This is a three-dimensional structural diagram of the present invention (concealed cylinder fixing plate).

[0018] Figure 6 for Figure 5 A magnified view of a portion of region C.

[0019] Figure 7 This is a three-dimensional structural diagram of the fixing component in this utility model.

[0020] Figure 8 This is a cross-sectional view of the fastener in this utility model.

[0021] Explanation of reference numerals in the attached drawings: Front gripper 1, Rear gripper 2, Positioning pin 3, Lower push rod 4, Lower tooth groove 41, Upper push rod 5, Upper tooth groove 51, U-shaped groove 52, Fixing component 6, Upper slide rail 61, Lower slide rail 62, Notch 63, Bearing seat 64, Shaft hole 65, Gear 7, Gear shaft 8, Hinge pin 9, Floating joint 10, Cylinder fixing plate 11, Cylinder 12, Product 13, Bearing 14, Snap ring 15. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings:

[0023] Example: As attached Figures 1-8 As shown, this small long-arm stable gripping mechanism includes a front gripper 1, a rear gripper 2, a positioning pin 3, a lower push rod 4, a lower toothed groove 41, an upper push rod 5, an upper toothed groove 51, a U-shaped groove 52, a fixing piece 6, an upper slide rail 61, a lower slide rail 62, a notch 63, a bearing seat 64, a shaft hole 65, a gear 7, a gear shaft 8, a hinge pin 9, a floating joint 10, a cylinder fixing plate 11, a cylinder 12, a product 13, a bearing 14, and a retaining ring 15.

[0024] Reference Appendix Figure 7 , 8 Two parallel sliding tracks (upper track 61 and lower track 62) are formed inside the fixing member 6. The upper push rod 4 passes through the upper track 61, and the lower push rod 4 passes through the lower track 62. A cylinder fixing plate 11 is also bolted to the rear end of the fixing member 6, and the cylinder 12 is fixedly mounted on the cylinder fixing plate 11. Further, such as... Figure 4 , 5 As shown in Figure 6, a U-shaped groove 52 is formed at the end of the upper push rod 5 near the cylinder 12, and a floating joint 10 is installed on the piston rod of the cylinder 12. A hinge pin 9 is passed through the floating joint 10, and both ends of the hinge pin 9 are equipped with retaining rings 15 to position it with the floating joint 10, so that the hinge pin 9 slides along the U-shaped groove 52. The piston rod of the cylinder 12 drives the upper push rod 5 to slide along the upper slide rail 61. The other end of the upper push rod 5 extends out of the upper slide rail 61 and is equipped with a front gripper 1. Preferably, the front gripper 1 is connected and fixed to the upper push rod 5 by a positioning pin 3, and the rear gripper 2 is connected and fixed to the lower push rod 4 by a positioning pin 3.

[0025] like Figure 2 , 3 As shown in Figures 5 and 6, an upper toothed groove 51 is provided on the upper push rod 5 away from the front gripper 1 (below the U-shaped groove 52), and a lower toothed groove 41 is provided on the lower push rod 4 at a position corresponding to the upper toothed groove 51. The gear 7 is rotatably connected to the fixed part 6 through the gear shaft 8, and the upper toothed groove 51 and the lower toothed groove 41 mesh with the upper and lower sides of the gear 7 respectively, so that when the upper push rod 5 slides, it drives the lower push rod 4 to slide in the opposite direction along the lower slide rail 62. Figure 5 , 7 As shown, preferably, a notch 63 is made on the side of the sliding track 62 near the front gripper 1. The rear gripper 2 (i.e., the rear gripper 2 is installed at the end of the lower push rod 4 away from the lower tooth groove 41) is installed in the notch 63. When the rear gripper 2 slides with the lower push rod 4, it is limited by the notch 63 (limiting the sliding stroke). When the front gripper 1 closes inward relative to the rear gripper 2, the product 13 is gripped. When the front gripper 1 moves outward relative to the rear gripper 2 in the opposite direction, the product 13 is released.

[0026] Reference Appendix Figure 6 , 7 Two bearing seats 64 are symmetrically arranged on the fixing part 6. Bearings 14 are installed in the bearing seats 64. At the same time, shaft holes 65 are opened in the center of the two bearing seats 64, so that the gear shaft 8 passes through the shaft hole 65 and is supported on the fixing part 6 by the bearing 14.

[0027] The working process of this utility model:

[0028] During clamping or releasing operations, the cylinder 12 provides the power source. The piston rod of the cylinder 12 extends or retracts, first causing the hinge pin 9 to slide within the U-shaped groove 52. When the hinge pin 9 is in full contact with the side wall of the U-shaped groove 52, the hinge pin 9 then pushes or pulls the upper push rod 5, causing the upper tooth groove 51 on the surface of the upper push rod 5 to move back and forth, driving the gear 7 to rotate around the gear shaft 8, pushing the lower tooth groove 41 (lower push rod 4) to move back and forth in the opposite direction to the upper push rod 5. The front gripper 1 and the rear gripper 2, fixed to the upper push rod 5 and the lower push rod 4, complete the clamping and releasing of the product 13. When the front gripper 1 closes inward relative to the rear gripper 2, the product 13 is clamped; when the front gripper 1 moves outward relative to the rear gripper 2, the product 13 is released. The fixing member 6 provides effective length and rigidity, allowing for clamping operations deep into narrow spaces.

[0029] It is understood that, for those skilled in the art, any equivalent substitutions or modifications to the technical solutions and inventive concepts of this utility model should fall within the protection scope of the appended claims.

Claims

1. A compact long arm stable gripper mechanism, characterized by: The assembly includes a lower push rod (4), an upper push rod (5), a fixing member (6), a gear (7), and a cylinder (12). The fixing member (6) has an upper slide rail (61) and a lower slide rail (62) arranged parallel vertically. A cylinder mounting plate (11) for mounting the cylinder (12) is connected to the fixing member (6). The piston rod of the cylinder (12) is connected to one end of the upper push rod (5), causing the upper push rod (5) to slide along the upper slide rail (61). The other end of the upper push rod (5) extends out of the upper slide rail (61) and is fitted with a front gripper (1). The upper push rod (5) moves away from the front gripper (1). 1) An upper tooth groove (51) is provided at the position, and a lower tooth groove (41) is provided at the position corresponding to the upper tooth groove (51) on the lower push rod (4). The gear (7) is rotatably connected to the fixed part (6) through the gear shaft (8), and the upper tooth groove (51) and the lower tooth groove (41) are respectively meshed on the upper and lower sides of the gear (7), so that when the upper push rod (5) slides, it drives the lower push rod (4) to slide in the opposite direction along the lower slide rail (62). The lower push rod (4) is equipped with a rear gripper (2) at the end away from the lower tooth groove (41) to realize the gripping or release of the product (13).

2. The compact long arm stable gripper mechanism of claim 1, wherein: The upper push rod (5) has a U-shaped groove (52) at one end near the cylinder (12). A floating joint (10) is installed on the piston rod of the cylinder (12). A hinge pin (9) is passed through the floating joint (10). Snap rings (15) are set at both ends of the hinge pin (9) to position it with the floating joint (10). The hinge pin (9) slides along the U-shaped groove (52).

3. The compact long arm stable gripper mechanism of claim 1, wherein: A notch (63) is provided on the side of the sliding track (62) near the front gripper (1) for installing the rear gripper (2). When the rear gripper (2) slides with the lower push rod (4), it is limited by the notch (63).

4. The compact long arm stable gripper mechanism of claim 1, wherein: Two bearing seats (64) are symmetrically arranged on the fixing member (6) for installing bearings (14). The center of each bearing seat (64) has a shaft hole (65). The gear shaft (8) passes through the shaft hole (65) and is supported on the fixing member (6) by the bearing (14).

5. The compact long arm stable gripper mechanism of claim 1, wherein: The front gripper (1) is connected and fixed to the upper push rod (5) by a positioning pin (3), and the rear gripper (2) is connected and fixed to the lower push rod (4) by a positioning pin (3).

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