A clamp for easy loading and unloading

Abstract

This utility model relates to a clamping device that facilitates loading and unloading. It includes a mounting base, a drive cylinder, and a connecting rod assembly controlled by the drive cylinder. The drive cylinder is located on the lower side of one side of the mounting base, and the connecting rod assembly is located on the upper side of one side of the mounting base. The connecting rod assembly includes a lifting block, a right connecting rod, a connecting block, a left connecting rod, and a clamping arm. The lifting block is located on top of the piston rod of the drive cylinder, allowing the drive cylinder to easily move the lifting block up and down. One end of the lifting block is hinged to the right connecting rod, which is hinged upwards to the end of the clamping arm. The other end of the lifting block has a left connecting rod, with a connecting block hinged between the middle of the left connecting rod and the other end of the lifting block. The bottom of the left connecting rod is hinged downwards to the mounting base, and the top of the left connecting rod is hinged upwards to the middle of the clamping arm. A clamping block is located at the head of the clamping arm. This utility model allows for linear movement only in a fixed position, without horizontal rotation or swaying, and does not interfere with adjacent components. It is convenient for use in confined environments, effectively clamping the workpiece and facilitating loading and unloading.

Description

Technical Field

[0001] This utility model relates to the field of cylinder clamping technology, and in particular to a clamping device that facilitates loading and unloading. Background Technology

[0002] In sheet metal processing, the sheet metal needs to be pressed and fixed. Once the sheet metal is fixed, appropriate equipment is used to process it. The sheet metal can be fixed using a rotary clamping cylinder, which is an existing technology, also known as an angle cylinder. The piston rod of the rotary clamping cylinder can rotate 90° while extending and retracting, and the workpiece is clamped by the clamping arm during the clamping stroke.

[0003] The principle of a rotary clamping cylinder is as follows: before clamping the workpiece, the clamping arm is away from the workpiece; after the workpiece is clamped, the clamping arm rotates to above the workpiece and moves vertically downwards to clamp it; when releasing the workpiece, the clamping arm automatically returns to its original position along the clamping path to release the workpiece, allowing the operator to easily and conveniently unload it. Rotary clamping cylinders have wide applications. For example, patent publication number CN209408315U discloses a fixture for ensuring the flatness of sheet metal processing, which uses a rotary clamping cylinder assembly to press the sheet metal. Another example is a vertical machining center clamping worktable disclosed in patent publication number CN218193906U, which uses a 90° angle cylinder to clamp the workpiece.

[0004] This shows that rotary clamping cylinders offer advantages in both facilitating workpiece loading and unloading and clamping. However, in some constrained environments, there is insufficient space to allow the rotary clamping cylinder to swing within a 90° range, thus limiting its practical application. Summary of the Invention

[0005] To address the problem of limited space in some environments where horizontal swinging of the clamping cylinder is not permitted, this utility model provides a clamping device that facilitates loading and unloading. The device uses a cylinder as the driving force to drive a specially designed linkage assembly, which can both clamp the edge of the sheet material and move away from the sheet material in a straight line without horizontal swinging, thus facilitating the loading and unloading of the sheet material.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A clamp for easy loading and unloading includes a mounting base, a drive cylinder, and a connecting rod assembly controlled by the drive cylinder. The drive cylinder is disposed below one side of the mounting base, and the connecting rod assembly is disposed above one side of the mounting base, thereby the drive cylinder and the connecting rod assembly are arranged vertically. The linkage assembly includes a lifting block, a right connecting rod, a connecting block, a left connecting rod, and a pressing arm. The lifting block is located on the top of the piston rod of the drive cylinder, and the drive cylinder can easily drive the lifting block to move up and down. One end of the lifting block is hinged to the right connecting rod, and the right connecting rod is hinged upward to the end of the pressing arm. On the other end of the lifting block, the left connecting rod is arranged. A connecting block is hinged between the middle of the left connecting rod and the other end of the lifting block. The bottom of the left connecting rod is hinged downward to the mounting seat, and the top of the left connecting rod is hinged upward to the middle of the pressing arm. A pressing block perpendicular to the pressing arm is arranged at the front end of the pressing arm, which facilitates clamping of the workpiece by the pressing block.

[0007] Further, the mounting seat includes a fixed seat and an adjusting seat. The cross-section of the fixed seat is an inverted "U" shape, and the adjusting seat is detachably arranged on the fixed seat, which facilitates disassembly and assembly of the adjusting seat. The adjusting seat includes a horizontal block and a vertical block. The horizontal block and the vertical block are fixedly connected in a horizontal and vertical cross pattern. The horizontal block is bolted to the fixed seat, and the lower part of the vertical block is connected to the driving cylinder, and the upper part of the vertical block is hinged to the bottom of the left connecting rod.

[0008] Further, the driving cylinder includes a mounting plate and a cylinder body. The mounting plate is arranged above the cylinder body, which facilitates installation of the cylinder body. The piston rod of the cylinder body passes vertically upward through the mounting plate and is detachably connected to the lifting block. There is a hole in the middle of the mounting plate for the piston rod to pass through. The mounting plate does not affect the operation of the cylinder body. One side of the mounting plate is bolted to the lower part of the vertical block. The mounting plate is horizontally arranged and fixed to the vertical block.

[0009] Further, the cross-section of the lifting block is "T" shaped. The bottom of the lifting block is cylindrical and arranged coaxially with the piston rod of the driving cylinder. The lifting block is bolted to the piston rod, which facilitates disassembly and assembly of the lifting block.

[0010] Further, the cross-section of the right connecting rod is "H" shaped. The upper and lower ends of the right connecting rod are respectively hinged to the lifting block and the end of the pressing arm; The cross-section of the connecting block is "丄" shaped. The narrow end of the connecting block is hinged to the lifting block, and the wide end is hinged to the middle of the left connecting rod. The left connecting rod is in the shape of a straight ladder, and there are two limiting rods arranged at intervals up and down in the middle of the left connecting rod. The connecting block swings between the two limiting rods, which limits the swinging range of the connecting block.

[0011] Further, the pressing arm and the pressing block are integrally formed. After the pressing arm and the pressing block are connected and combined, the cross-section is "T" shaped, and the pressing block is a long strip-shaped block. [[ID=二十]]

[0012] [[ID=二十一]]Through the above technical solutions, the beneficial effects of the present utility model are: [[ID=二十二]] This utility model features a reasonable structural design, using a mounting base as the installation foundation to easily fix the entire fixture onto a certain carrier. A drive cylinder is arranged below the mounting base, and a connecting rod assembly is arranged above it, allowing the drive cylinder to easily drive the connecting rod assembly to move. The specially designed connecting rod assembly, during operation, can move the clamping block above the workpiece to clamp it, and can also move it outside the workpiece without affecting the loading and unloading of the workpiece. The entire connecting rod assembly swings in a fixed position without horizontal rotation, and does not interfere with the operation of adjacent components, thus allowing the fixture to be used in certain narrow spaces. Attached Figure Description

[0013] Figure 1 This is an isometric drawing of a clamp for easy loading and unloading of materials according to this utility model.

[0014] Figure 2 This is an exploded view of a clamp for easy loading and unloading of materials according to this utility model.

[0015] Figure 3 This is a cross-sectional view of a clamp for facilitating loading and unloading of materials according to this utility model.

[0016] Figure 4 This is a schematic diagram showing the application of a clamp for easy loading and unloading of materials according to this utility model.

[0017] The attached diagram is labeled as follows: 1 Mounting base, 11 Fixed base, 12 Adjusting base, 121 Horizontal block, 122 Vertical block, 2 Drive cylinder, 21 Mounting plate, 22 Cylinder body, 23 Piston rod, 3 Linkage assembly, 31 Lifting block, 32 Right connecting rod, 33 Connecting block, 34 Left connecting rod, 35 Pressing arm, 36 Limiting rod, 37 Pressing block, 4 Table leg, 5 Tabletop, 6 Support plate. Detailed Implementation

[0018] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings: like Figures 1-4 As shown, a fixture is provided for easy loading and unloading of workpieces. This fixture can both clamp workpieces and facilitate loading and unloading. The fixture includes a mounting base 1, a drive cylinder 2, and a connecting rod assembly 3 controlled by the drive cylinder 2. The mounting base 1 is used to fix the entire fixture on a certain carrier. The drive cylinder 2 and the connecting rod assembly 3 are both arranged on the mounting base 1, and the movement of the connecting rod assembly 3 is controlled by the drive cylinder 2.

[0019] Mounting base 1 includes a fixed base 11 and an adjusting base 12. The fixed base 11 has an inverted U-shaped cross-section and is welded to the carrier. The adjusting base 12 is detachably mounted on the fixed base 11 and is connected to the drive cylinder and connecting rod assembly 3. The adjusting base 12 includes a horizontal block 121 and a vertical block 122, which are fixed together in a crisscross pattern. The horizontal block 121 is bolted to the fixed base 11, the lower part of the vertical block 122 is connected to the drive cylinder 2, and the upper part of the vertical block 122 is connected to the connecting rod assembly 3.

[0020] A drive cylinder 2 is installed below one side of the mounting base 1. The drive cylinder 2 includes a mounting plate 21 and a cylinder body 22. The mounting plate 21 is bolted to the top of the cylinder body 22. The mounting plate 21 is a rectangular plate. The piston rod 23 of the cylinder body 22 passes vertically upward through the mounting plate 21. When the drive cylinder 2 is connected to the mounting base 1, one side of the mounting plate 21 is bolted to the bottom of the vertical block 122. The mounting plate 21 is horizontally arranged and fixed to the vertical block 122, so that the mounting plate 21 does not flip and always remains horizontal, and the cylinder body 22 remains vertical.

[0021] A connecting rod assembly 3 is installed above one side of the mounting base 1. The connecting rod assembly 3 includes a lifting block 31, a right connecting rod 32, a connecting block 33, a left connecting rod 34, and a clamping arm 35. The lifting block 31 has a "T" shaped cross-section and is located on top of the piston rod 23 of the drive cylinder 2. The bottom of the lifting block 31 is cylindrical and coaxially arranged with the piston rod 23 of the drive cylinder 2. The piston rod 23 and the lifting block 31 are detachably connected. Specifically, the lifting block 31 is bolted to the piston rod 23, and the drive cylinder 2 can drive the lifting block 31 to move up and down.

[0022] One end of the lifting block 31 is hinged to a right connecting rod 32. The cross section of the right connecting rod 32 is "H" shaped. The right connecting rod 32 is hinged upward to the end of the pressing arm 35. Furthermore, the upper and lower ends of the right connecting rod 32 are respectively hinged to the lifting block 31 and the end of the pressing arm 35.

[0023] A left connecting rod 34 is arranged at the other end of the lifting block 31. The left connecting rod 34 is in the shape of a straight ladder, which is a ladder for people to climb. A connecting block 33 is hinged between the middle of the left connecting rod 34 and the other end of the lifting block 31. Thus, the left connecting rod 34 and the lifting block 31 are hinged together by the connecting block 33. The connecting block 33 has a "T" shaped cross section. The narrow end of the connecting block 33 is hinged to the lifting block 31, and the wide end is hinged to the middle of the left connecting rod 34. At the same time, the middle of the left connecting rod 34 has two limiting rods 36 arranged vertically at intervals. The connecting block 33 swings between the two limiting rods 36.

[0024] The bottom of the left connecting rod 34 is hinged to the mounting base 1, specifically, the top of the vertical rod is hinged to the bottom of the left connecting rod 34. The top of the left connecting rod 34 is hinged to the middle of the clamping arm 35. The clamping arm 35 has a clamping block 37 arranged perpendicular to it at its head. The clamping block 37 is a long strip. The clamping arm 35 and the clamping block 37 are integrally formed. After the clamping arm 35 and the clamping block 37 are connected and combined, the cross section is "T" shaped.

[0025] The principle of this utility model is as follows: The entire fixture is installed on a carrier, which can be a welding table. The mounting base 1 is connected and fixed to the table legs 4 of the welding table, and the clamping block 37 is movable above the tabletop 5 of the welding table. After the drive cylinder 2 retracts, it drives the connecting rod assembly 3 to move, thereby moving the clamping block 37 to the outside of the tabletop 5, so as not to obstruct the space above the tabletop 5. At this time, the plate to be processed can be placed flat on the tabletop 5. After the drive cylinder 2 extends, the connecting rod assembly 3 drives the clamping block 37 to move forward to the top of the tabletop 5 and clamp the edge of the plate. At this time, the clamping arm 35 clamps the plate in a horizontal state.

[0026] It should be noted that a support plate 6 can be installed on the table leg 4. The support plate 6 is horizontally arranged below the drive cylinder 2. One end of the support plate 6 is connected and fixed to the table leg 4. The support plate 6 supports the drive cylinder 2, thereby further ensuring the fixed position of the drive cylinder 2 and preventing the drive cylinder 2 from deflecting.

[0027] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A clamp for easy loading and unloading, characterized in that, It includes a mounting base (1), a driving cylinder (2), and a connecting rod assembly (3) controlled by the driving cylinder (2). The driving cylinder (2) is arranged below one side of the mounting base (1), and the connecting rod assembly (3) is arranged above one side of the mounting base (1). The connecting rod assembly (3) includes a lifting block (31), a right connecting rod (32), a connecting block (33), a left connecting rod (34), and a pressing arm (35). The lifting block (31) is arranged at the top of the piston rod (23) of the driving cylinder (2). One end of the lifting block (31) is hinged to the right connecting rod (32), and the right connecting rod (32) is hinged upward to the end of the pressing arm (35). The other end of the lifting block (31) is arranged with the left connecting rod (34). A connecting block (33) is hinged between the middle of the left connecting rod (34) and the other end of the lifting block (31). The bottom of the left connecting rod (34) is hinged downward to the mounting base (1), and the top of the left connecting rod (34) is hinged upward to the middle of the pressing arm (35). A pressing block (37) arranged perpendicular to the pressing arm (35) is provided at the front end of the pressing arm (35).

2. The clamp for facilitating loading and unloading according to claim 1, characterized in that, The mounting base (1) includes a fixed base (11) and an adjusting base (12). The cross-section of the fixed base (11) is an inverted "U" shape. The adjusting base (12) is detachably arranged on the fixed base (11). The adjusting base (12) includes a horizontal block (121) and a vertical block (122). The horizontal block (121) and the vertical block (122) are fixedly connected in a horizontal and vertical staggered manner. The horizontal block (121) is bolted to the fixed base (11). The vertical block (122) is connected to the driving cylinder (2) below and hinged to the bottom of the left connecting rod (34) above.

3. The clamp for facilitating loading and unloading according to claim 2, characterized in that, The driving cylinder (2) includes a mounting plate (21) and a cylinder body (22). The mounting plate (21) is arranged above the cylinder body (22). The piston rod (23) of the cylinder body (22) passes vertically upward through the mounting plate (21) and is detachably connected to the lifting block (31). One side of the mounting plate (21) is bolted to the lower part of the vertical block (122). The mounting plate (21) is horizontally arranged and fixed with the vertical block (122).

4. The clamp for facilitating loading and unloading according to claim 1, characterized in that, The cross-section of the lifting block (31) is "T" shaped. The bottom of the lifting block (31) is cylindrical and coaxially arranged with the piston rod (23) of the driving cylinder (2). The lifting block (31) is bolted to the piston rod (23).

5. A clamp for facilitating loading and unloading according to claim 1, characterized in that, The cross-section of the right connecting rod (32) is "H" shaped. The upper and lower ends of the right connecting rod (32) are respectively hinged to the lifting block (31) and the end of the pressing arm (35). The cross-section of the connecting block (33) is "丄" shaped. The narrow end of the connecting block (33) is hinged to the lifting block (31), and the wide end is hinged to the middle of the left connecting rod (34). The left connecting rod (34) is in the shape of a straight ladder, and two limiting rods (36) arranged at intervals up and down are provided in the middle of the left connecting rod (34). The connecting block (see) swings between the two limiting rods (36).

6. The clamp for facilitating loading and unloading according to claim 1, characterized in that, The pressing arm (35) and the pressing block (37) are integrally formed. The cross-section of the pressing arm (35) and the pressing block (37) after connection and combination is "T" shaped. The pressing block (37) is a long strip-shaped block.

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