Clamping mechanism for metal piece processing

Abstract

This utility model belongs to the field of metal parts processing technology, specifically relating to a clamping mechanism for metal parts processing; it includes a worktable fixedly installed on the top of a base plate, with an assembly groove on the top of the worktable, and two assembly blocks slidably assembled inside the assembly groove, each assembly block having an assembly through hole on its top; two assembly shafts rotatably assembled inside the two assembly through holes, with mounting blocks fixedly installed on the upper ends of each of the two assembly shafts, cylindrical clamping components fixedly installed on the side of each mounting block closer to each other, and clamping plates fixedly installed on the side of each mounting block further apart; and conical columns fixedly installed on the front sides of each mounting block; two drive mechanisms respectively installed at the bottom of the two assembly blocks, used to drive the assembly shafts to rotate; and a displacement mechanism installed on the front side of the worktable; this utility model has a simple and reasonable structure, and provides more stable and reliable clamping when using cylindrical parts.

Description

Technical Field

[0001] This utility model belongs to the field of metal parts processing technology, specifically relating to a clamping mechanism for metal parts processing. Background Technology

[0002] Metal parts are made from raw metals and processed through various techniques such as casting, forging, stamping, cutting, and welding to ultimately produce components or products with specific shapes, dimensions, and functions. Metal materials are characterized by high strength, good electrical conductivity, and strong wear resistance.

[0003] In the metal parts processing, clamping mechanisms are used for clamping and positioning to increase processing accuracy. In existing technologies, such as the metal product processing clamping device with patent application CN202320793584.7, the workpiece is placed on the operating table, and then an electric hydraulic rod is activated via an external controller. The electric hydraulic rod drives the connecting plate to move relative to the workpiece, which in turn drives the moving plate to move relative to the workpiece. The moving plate then drives the slider to slide within a groove, and simultaneously, the moving plate drives the outer shell to move relative to the workpiece. The outer shell, through a buffer column, drives the clamping plate to move relative to the workpiece to complete the clamping. However, this device only provides good clamping for square parts. When clamping cylindrical parts, the contact area between the clamping element and the cylindrical surface is small, resulting in poor clamping stability and potentially affecting subsequent processing accuracy. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to provide a clamping mechanism for metal parts processing. During use, the clamping plate, cylindrical clamping component, and conical column can be quickly switched by rotating the mounting block. These are suitable for square, cylindrical, and tubular metal parts, respectively, and can complete the processing of various types of parts. When clamping cylindrical parts, the clamping is more stable and reliable.

[0005] To achieve the above technical objectives, the technical solution adopted by this utility model is as follows:

[0006] Clamping mechanisms for metal part machining, including

[0007] A base plate, on the top of which a workbench is fixedly mounted, and an assembly groove is provided on the top of the workbench;

[0008] There are two assembly blocks, which are slidably assembled into the assembly slots from left to right. Each assembly block has an assembly through hole at its top.

[0009] Two assembly shafts are provided, and the two assembly shafts are respectively rotatably assembled inside two assembly through holes. An installation block is fixedly installed on the upper end of each of the two assembly shafts. A cylindrical clamping component is fixedly installed on the side of the two installation blocks that are close to each other, and a clamping plate is fixedly installed on the side of the two installation blocks that are far from each other. A tapered column is fixedly installed on the front side of each of the two installation blocks.

[0010] There are two drive mechanisms, which are respectively installed on the bottom of the two assembly blocks. The drive mechanisms are used to drive the assembly shaft to rotate.

[0011] A displacement mechanism is installed on the front side of the worktable and is used to drive two assembly blocks to move closer or further apart.

[0012] As a preferred technical solution, the two drive mechanisms are distributed in a mirror image. Each drive mechanism includes a crown gear, which is fixedly installed on the lower end of the assembly shaft. An L-shaped assembly tube is fixedly installed on the bottom of the assembly block, and a gear that meshes with the crown gear is rotatably assembled on the side of the L-shaped assembly tube near the crown gear.

[0013] A toothed column is rotatably mounted on the left inner wall of the assembly slot. One end of the toothed column passes through two gears in sequence and extends out of the worktable. The two L-shaped assembly tubes have openings on their respective sides for the toothed column to pass through. Protective boxes are fixedly installed at the bottom of the two assembly blocks. Both protective boxes have through slots for the toothed column to pass through. A first telescopic sleeve is fixedly installed on the respective side of the two protective boxes. A second telescopic sleeve is fixedly installed on the respective side of the two protective boxes. The respective ends of the two second telescopic sleeves are fixedly connected to the left and right inner walls of the assembly slot. A turntable is fixedly installed on the right end of the toothed column. A gripping rod is eccentrically mounted on the side of the turntable away from the toothed column. A locking assembly is provided between the turntable and the worktable.

[0014] As a preferred technical solution, the locking assembly includes a bolt, the turntable has a threaded hole on the side away from the tooth column, the bolt is threaded into the threaded hole, and the right side of the worktable has a plurality of threaded connection holes around the tooth column as the center, the bolt is threaded into one of the threaded connection holes.

[0015] As a preferred technical solution, the displacement mechanism includes two fixed blocks. A slide groove is provided on the front side of the worktable. Displacement blocks that are slidably connected to the slide groove are fixedly installed on the front side of the two assembly blocks. The two fixed blocks are respectively fixedly installed on the left and right sides of the front side of the worktable. A bidirectional lead screw is rotatably assembled on the right side of the left fixed block. The right end of the bidirectional lead screw passes through the two displacement blocks in sequence and extends out of the right fixed block. A drive disk is fixedly installed on the right end of the bidirectional lead screw. The two displacement blocks are threadedly connected to the forward thread section and the reverse thread section of the bidirectional lead screw, respectively.

[0016] As a preferred technical solution, a third telescopic sleeve is fixedly installed on the side of the two displacement blocks that are close to each other, and a fourth telescopic sleeve is fixedly installed on the side of the two displacement blocks that are far apart from each other. The two fourth telescopic sleeves are respectively fixedly connected to the two fixed blocks at the ends that are far apart from each other.

[0017] The beneficial effects of this utility model are:

[0018] 1. Multi-functional adaptability: The rotating mounting block allows for quick switching between three clamping tools: clamping plate, cylindrical clamping part, and conical column, which are suitable for square, cylindrical, and tubular metal parts respectively. Multiple parts can be processed without changing the clamps, improving the versatility of the equipment.

[0019] 2. Convenient and efficient operation: Simply rotate the gripping rod to simultaneously switch the clamping tools of the two mounting blocks. The distance between the two mounting blocks can be adjusted synchronously through the two-way lead screw. With the locking component, the state can be quickly fixed. The operation steps are simple and the switching and adjustment time is short.

[0020] 3. Reasonable structural linkage: When the displacement mechanism drives the assembly block to move, the gear only slides along the tooth column without rotating, ensuring that the clamping tool remains stable during the adjustment of the spacing, avoiding malfunctions that affect the clamping accuracy. The linkage logic of each mechanism is clear and the operation is stable. Attached Figure Description

[0021] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0024] Figure 3 This is a top view of the structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the drive mechanism structure of this utility model;

[0026] Figure 5 This is a side view of the structure of this utility model.

[0027] Reference numerals: Base plate 1, Workbench 11, Assembly slot 12, Assembly block 2, Assembly shaft 3, Mounting block 31, Cylindrical clamping piece 32, Clamping plate 33, Conical column 34, Drive mechanism 4, Crown gear 41, L-shaped assembly tube 42, Gear 43, Tooth column 44, Protective box 45, First telescopic sleeve 451, Second telescopic sleeve 452, Turntable 46, Holding rod 471, Threaded connection hole 47, Displacement mechanism 6, Fixing block 61, Slide groove 62, Bidirectional lead screw 63, Displacement block 631, Drive disk 64, Third telescopic sleeve 65, Fourth telescopic sleeve 66. Detailed Implementation

[0028] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] like Figure 1-5 As shown, the clamping mechanism for metal part processing of this utility model includes...

[0030] Base plate 1, a workbench 11 is fixedly installed on the top of base plate 1, and an assembly slot 12 is opened on the top of workbench 11;

[0031] There are two assembly blocks 2, which are distributed left and right and slidably assembled inside the assembly groove 12. Each assembly block 2 has an assembly through hole on its top.

[0032] Two assembly shafts 3 are provided. The two assembly shafts 3 are rotatably assembled inside the two assembly through holes. An installation block 31 is fixedly installed on the upper end of each of the two assembly shafts 3. A cylindrical clamping piece 32 is fixedly installed on the side of the two installation blocks 31 that is close to each other. A clamping plate 33 is fixedly installed on the side of the two installation blocks 31 that is far from each other. A tapered column 34 is fixedly installed on the front side of each of the two installation blocks 31.

[0033] In use, depending on the part to be clamped, when clamping a square part, adjust the two clamping plates 33 to align with each other. When clamping a cylindrical part, adjust the two cylindrical clamping parts 32 to close together. The cylindrical clamping part 32 is a clamping block with a clamping groove. The clamping groove consists of two inclined surfaces and a flat component. The two inclined surfaces are inclined towards the flat surface. When the two cylindrical clamping parts 32 clamp the cylinder, the four inclined surfaces are suitable for clamping cylinders of different diameters, with more contact surfaces and stable clamping. When clamping tubular parts, control the two conical columns 34 to align with each other. The two conical columns 34 close together and extend into the inside of the tube to achieve clamping of the tubular parts.

[0034] There are two drive mechanisms 4, which are respectively installed at the bottom of the two assembly blocks 2. The drive mechanisms 4 are used to drive the assembly shaft 3 to rotate. Specifically, the two drive mechanisms 4 are mirror-distributed. The drive mechanism 4 includes a crown gear 41, which is fixedly installed at the lower end of the assembly shaft 3. An L-shaped assembly tube 42 is fixedly installed at the bottom of the assembly block 2. A gear 43 that meshes with the crown gear 41 is rotatably assembled on the side of the L-shaped assembly tube 42 near the crown gear 41.

[0035] A gear column 44 is rotatably mounted on the inner wall of the left side of the assembly slot 12. One end of the gear column 44 passes through two gears 43 in sequence and extends out of the worktable 11. Two L-shaped assembly tubes 42 have openings on their sides close to each other for the gear column 44 to pass through. Protective boxes 45 are fixedly installed at the bottom of the two assembly blocks 2. Both protective boxes 45 have through slots for the gear column 44 to pass through. A first telescopic sleeve 451 is fixedly installed on the side close to each other of the two protective boxes 45. A second telescopic sleeve 452 is fixedly installed on the side away from each other of the two protective boxes 45. The ends of the two second telescopic sleeves 452 are fixedly connected to the inner walls of the left and right sides of the assembly slot 12 respectively. A turntable 46 is fixedly installed on the right end of the gear column 44. A gripping rod 471 is eccentrically mounted on the side of the turntable 46 away from the gear column 44. A locking assembly is provided between the turntable 46 and the worktable 11.

[0036] In the initial state, the turntable 46 is locked by the locking assembly, preventing it from rotating. In this state, the gear 44 cannot rotate, thus fixing the gear 43 and preventing the crown gear 41 from rotating. When the displacement mechanism 6 drives the two assembly blocks 2 to move closer or further apart, the movement of the two assembly blocks 2 causes the gear 43 to slide on the gear 44, but this does not cause the gear 43 to rotate and does not affect the clamping of the metal part. When adjustments to the clamping tool are needed, the locking assembly is released, and the gear 44 is rotated, causing the two gears 43 to slide on the gear 44. Wheel 43 drives two crown gears 41 to rotate, and the two crown gears 41 rotate in opposite directions, driving the assembly shaft 3 to rotate, which in turn drives the two mounting blocks 31 to rotate and change the clamping tool. After the change is completed, the locking assembly is used to lock it again. The operation is simple and convenient. The first telescopic sleeve 451 and the second telescopic sleeve 452 can prevent dust from adhering to the gear 43 and the tooth column 44 during processing, which will affect its use. When the two protective boxes 45 approach or move away from each other, the first telescopic sleeve 451 and the second telescopic sleeve 452 will extend or retract accordingly.

[0037] The locking assembly includes a bolt. A threaded hole is provided on the side of the turntable 46 away from the toothed column 44. The bolt is threaded into the threaded hole. Several threaded connection holes 47 are provided around the right side of the worktable 11 with the toothed column 44 as the center. The bolt is threaded into one of the threaded connection holes 47. When the bolt is connected, the turntable 46 cannot rotate. When the turntable 46 needs to be rotated to drive the toothed column 44 to rotate, the bolt can be released. After the fixture adjustment is completed, the bolt can be connected to the corresponding threaded connection hole 47.

[0038] The displacement mechanism 6 is installed on the front side of the worktable 11. The displacement mechanism 6 is used to drive the two assembly blocks 2 to move closer or further apart. Specifically, the displacement mechanism 6 includes two fixed blocks 61. A slide groove 62 is opened on the front side of the worktable 11. Displacement blocks 631 that are slidably connected to the slide groove 62 are fixedly installed on the front side of the two assembly blocks 2. The two fixed blocks 61 are fixedly installed on the left and right sides of the front side of the worktable 11, respectively. A double-acting screw 63 is rotatably assembled on the right side of the left fixed block 61. The right end of the double-acting screw 63 passes through the two displacement blocks 631 in sequence and extends out of the right fixed block 61. A drive disk 64 is fixedly installed on the right end of the double-acting screw 63. The two displacement blocks 631 are threadedly connected to the forward thread section and the reverse thread section of the double-acting screw 63, respectively.

[0039] In use, the operator only needs to drive the bidirectional lead screw 63 to rotate in the forward or reverse direction via the drive disc 64. Since the two displacement blocks 631 are respectively threaded to the forward and reverse thread sections of the bidirectional lead screw 63, the two assembly blocks 2 can be driven to move closer or further apart via the bidirectional lead screw 63, thereby clamping the metal parts such as the two cylindrical clamping parts 32. The clamping is reliable and safe, and the operation is convenient.

[0040] Two displacement blocks 631 are fixedly installed with a third telescopic sleeve 65 on the side close to each other, and a fourth telescopic sleeve 66 is fixedly installed on the side away from each other. The two fourth telescopic sleeves 66 are fixedly connected to two fixed blocks 61 at the ends away from each other. In use, as the two displacement blocks 631 move closer or further apart, the third telescopic sleeve 65 and the fourth telescopic sleeve 66 will extend and retract accordingly, which can prevent dust from entering the bidirectional lead screw 63.

[0041] The device is used as follows:

[0042] When in use, depending on the type of metal part to be processed, first release the locking assembly between the turntable 46 and the worktable 11;

[0043] Rotating the gripping rod 471 causes the turntable 46 to rotate, which in turn drives the gear sprocket 44 to rotate. The gear sprocket 44 simultaneously drives two gears 43 to rotate, and the two gears 43 drive the meshing crown gears 41 to rotate. This, in turn, drives the two mounting blocks 31 to rotate synchronously via the assembly shaft 3, thus achieving the switching of the clamping tool.

[0044] When clamping a square part, adjust the two clamping plates 33 to be aligned with each other;

[0045] When clamping cylindrical parts, adjust the two cylindrical clamping parts 32 to be aligned with each other;

[0046] When clamping tubular parts, adjust the two tapered pillars 34 to be aligned with each other.

[0047] After the switching is completed, screw the bolt back into the threaded hole of the turntable 46 and engage it with the corresponding threaded connection hole 47 to complete the locking and fix the clamping tool.

[0048] Then, the clamping distance is adjusted by the displacement mechanism 6. During the adjustment, the drive disk 64 is rotated to drive the bidirectional lead screw 63 to rotate. The bidirectional lead screw 63 drives the two displacement blocks 631 to move closer or further away from each other along the slide groove 62 through the positive and negative thread sections, and synchronously drives the two assembly blocks 2 to slide in the assembly groove 12, so that the clamping tool contacts and clamps the metal part.

[0049] During the processing, if the clamping force needs to be adjusted, the drive disk 64 can be rotated again to fine-tune the distance between the two assembly blocks 2; if the clamping type needs to be changed, the above clamping tool switching steps can be repeated.

[0050] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A clamping mechanism for machining metal parts, characterized in that: include A base plate (1) is fixedly installed on the top of the base plate (1), and an assembly slot (12) is provided on the top of the workbench (11). There are two assembly blocks (2), which are slidably assembled in the assembly groove (12) in a left-right distribution. Each assembly block (2) has an assembly through hole at its top. Two assembly shafts (3) are provided. The two assembly shafts (3) are respectively rotatably assembled inside two assembly through holes. An installation block (31) is fixedly installed on the upper end of each of the two assembly shafts (3). A cylindrical clamping member (32) is fixedly installed on the side of the two installation blocks (31) that are close to each other. A clamping plate (33) is fixedly installed on the side of the two installation blocks (31) that are far away from each other. A tapered column (34) is fixedly installed on the front side of each of the two installation blocks (31). There are two drive mechanisms (4), which are respectively installed on the bottom of the two assembly blocks (2). The drive mechanisms (4) are used to drive the assembly shaft (3) to rotate. The displacement mechanism (6) is installed on the front side of the workbench (11) and is used to drive the two assembly blocks (2) to move closer to each other or further away from each other.

2. The clamping mechanism for metal part processing according to claim 1, characterized in that: The two drive mechanisms (4) are distributed in a mirror image. The drive mechanism (4) includes a crown gear (41), which is fixedly installed on the lower end of the assembly shaft (3). An L-shaped assembly tube (42) is fixedly installed at the bottom of the assembly block (2). A gear (43) that meshes with the crown gear (41) is rotatably assembled on the side of the L-shaped assembly tube (42) near the crown gear (41). A gear column (44) is rotatably mounted on the inner wall of the left side of the assembly slot (12). One end of the gear column (44) passes through two gears (43) and extends out of the worktable (11). The two L-shaped assembly tubes (42) have openings on their respective sides for the gear column (44) to pass through. Protective boxes (45) are fixedly installed at the bottom of the two assembly blocks (2). The two protective boxes (45) have through slots for the gear column (44) to pass through. The two protective boxes (45) are fixedly installed on their respective sides. The first telescopic sleeve (451) is installed, and the two protective boxes (45) are fixedly installed with the second telescopic sleeve (452) on the side away from each other. The two second telescopic sleeves (452) are fixedly connected to the inner walls of the left and right sides of the assembly groove (12) respectively at the side away from each other. The right end of the tooth column (44) is fixedly installed with a turntable (46). The turntable (46) is eccentrically fitted with a gripping rod (471) on the side away from the tooth column (44). A locking assembly is provided between the turntable (46) and the worktable (11).

3. The clamping mechanism for metal part processing according to claim 2, characterized in that: The locking assembly includes a bolt. The turntable (46) has a threaded hole on the side away from the toothed column (44). The bolt is threaded into the threaded hole. The worktable (11) has several threaded connection holes (47) around the toothed column (44) on the right side. The bolt is threaded into one of the threaded connection holes (47).

4. The clamping mechanism for metal part processing according to claim 1, characterized in that: The displacement mechanism (6) includes two fixed blocks (61). A slide groove (62) is provided on the front side of the worktable (11). Displacement blocks (631) that are slidably connected to the slide groove (62) are fixedly installed on the front side of the two assembly blocks (2). The two fixed blocks (61) are respectively fixedly installed on the left and right sides of the front side of the worktable (11). A bidirectional lead screw (63) is rotatably assembled on the right side of the left fixed block (61). The right end of the bidirectional lead screw (63) passes through the two displacement blocks (631) in sequence and extends out of the right fixed block (61). A drive disk (64) is fixedly installed on the right end of the bidirectional lead screw (63). The two displacement blocks (631) are respectively threaded to the forward thread section and the reverse thread section of the bidirectional lead screw (63).

5. The clamping mechanism for metal part processing according to claim 4, characterized in that: The two displacement blocks (631) are fixedly installed with a third telescopic sleeve (65) on one side close to each other, and a fourth telescopic sleeve (66) is fixedly installed on one side away from each other. The two fourth telescopic sleeves (66) are fixedly connected to the two fixed blocks (61) at the opposite ends.

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