Clamp for metal processing

Abstract

The utility model discloses a clamp for metal machining, and relates to the technical field of metal machining. The clamp comprises a clamp base, a plurality of inserting holes are formed in the front face of the clamp base, the clamp further comprises a clamping mechanism, the clamping mechanism is arranged at the top of the clamp base and comprises two clamping blocks arranged at the top of the clamp base, and side limiting plates are fixedly connected to the front faces and the back faces of the clamping blocks. A square metal workpiece is clamped and fixed through the rubber clamping blocks on the two clamping blocks, when a round metal workpiece needs to be clamped, a first rotating handle is rotated clockwise, a first threaded rod drives a U-shaped frame to move, a clamping shaft is moved to the position exceeding the rubber clamping blocks, and then the round metal workpiece is clamped. The left clamping shaft and the right clamping shaft are matched with each other to clamp and fix the circular metal workpiece, so that clamping of the metal workpieces in two shapes can be met, follow-up use of auxiliary parts for clamping is not needed, and the fixing effect of the metal workpiece is guaranteed.

Description

Technical Field

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

[0002] Grinding is a process that is often involved in the machining of metal workpieces. When grinding metal workpieces, fixtures are used to fix the workpieces in place to ensure that they maintain the correct geometric position relative to the machine tool, cutting tool or inspection equipment during the machining process, thereby ensuring machining accuracy.

[0003] Existing fixtures typically use two clamping blocks to hold metal workpieces. However, these clamping blocks are usually rectangular, so they can only hold and fix rectangular metal workpieces. When it is necessary to clamp round metal workpieces, the operator needs to use other auxiliary tools. This process not only requires finding suitable auxiliary parts, but the coordination of multiple auxiliary parts can also lead to poor stability of the metal workpiece after clamping, making it easy for it to loosen, which poses certain safety hazards to subsequent grinding processes. Utility Model Content

[0004] The purpose of this invention is to provide a metalworking fixture that uses rubber clamping blocks on two clamping blocks to hold and fix square metal workpieces. When a round metal workpiece needs to be clamped, the throttle is turned clockwise, causing the threaded rod to move the U-shaped frame and move the clamping shaft beyond the rubber clamping blocks. The left and right clamping shafts then cooperate to clamp and fix the round metal workpiece. This method can satisfy the clamping of metal workpieces of two shapes without the need for subsequent auxiliary clamping parts, ensuring the fixing effect of the metal workpiece. It solves the problem that existing fixtures usually use two clamping blocks to clamp the workpiece, but the clamping blocks are usually rectangular. When a round metal workpiece needs to be clamped, the operator needs to use other auxiliary tools. This process not only requires finding suitable auxiliary parts, but the cooperation of multiple auxiliary parts can also lead to poor stability of the metal workpiece after clamping.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a metalworking fixture, including a fixture base, the front of which has several insertion holes, and further comprising:

[0007] A clamping mechanism is disposed on the top of a clamping base. The clamping mechanism includes two clamping blocks disposed on the top of the clamping base. Side limiting plates are fixedly connected to the front and back of each clamping block. An L-shaped top plate is fixedly connected to the top of each clamping block. At least two rubber clamping blocks are disposed on the side of each clamping block that is close to each other. A U-shaped frame is disposed on the top of the L-shaped top plate. Clamping shafts are fixedly connected to both ends of the U-shaped frame. A threaded rod is threadedly connected to the L-shaped top plate. One end of the threaded rod is rotatably connected to the U-shaped frame. A throttle is fixedly connected to the other end of the threaded rod. A fixed seat is fixedly connected to the top right side of the clamping base. A threaded rod is threadedly connected to the fixed seat. A throttle is fixedly connected to the right side of the threaded rod. The left side of the threaded rod is rotatably connected to the clamping block on the right side.

[0008] Furthermore, at least two threaded shafts are fixedly connected to the surface of the clamping block, and a threaded hole is opened inside the rubber clamping block. The rubber clamping block is threadedly connected to the threaded shaft through the threaded hole. The rubber clamping block is installed on the threaded shaft, which facilitates the subsequent disassembly and replacement of the rubber clamping block.

[0009] Furthermore, a gap is left between the bottom of the U-shaped frame and the L-shaped top plate, the bottom of the clamping shaft contacts the top of the clamping block, and rubber sleeves are fitted on the outer sides of both the threaded rod one and the threaded rod two. Two limiting plates are fixedly connected to the surface of the U-shaped frame, and the two limiting plates are distributed on the front and back of the L-shaped top plate. When the U-shaped frame moves, the limiting plates will limit the U-shaped frame, so that the U-shaped frame moves in a straight line.

[0010] Furthermore, a convex shaft is fixedly connected to the side limiting plate on the left front side. The convex shaft has a hollow interior and a plug rod is slidably connected inside the convex shaft. A limiting ring is fixedly connected to the outer surface of the plug rod, and a spring is sleeved on the outer side of the plug rod. A handle is fixedly connected to the front of the plug rod. The limiting ring is used to limit the movement distance of the plug rod, and the diameter of the plug rod is slightly smaller than the inner diameter of the insertion hole.

[0011] Furthermore, the insertion rod slides through the convex shaft and the side limiting plate and extends to the outside. One end of the spring is fixedly connected to the surface of the limiting ring, and the other end of the spring is fixedly connected to the inner wall of the convex shaft. The insertion rod is adapted to the insertion hole, and the handle is set on the outside of the convex shaft. After the insertion rod is inserted into the fixture base, it will restrict the clamping block on the left side and ensure the stable clamping of the metal workpiece in the future.

[0012] This utility model has the following beneficial effects:

[0013] This invention uses rubber clamps on two clamping blocks to clamp and fix square metal workpieces. When it is necessary to clamp round metal workpieces, turn the handle clockwise to move the threaded rod and move the clamping shaft beyond the rubber clamps. Then the left and right clamping shafts cooperate to clamp and fix the round metal workpiece. This method can satisfy the clamping of metal workpieces of two shapes without the need for subsequent auxiliary clamping parts, ensuring the fixing effect of the metal workpiece.

[0014] This invention allows the insertion rod to move by pulling the handle, causing it to leave the insertion hole. At this time, the limiting ring will compress the spring, and then push the left clamping block for adjustment. This method can quickly adjust the distance between the two clamping blocks without the need for subsequent long-term rotation of the threaded rod. It can quickly adjust when the metal workpieces have large size differences, thus improving the fixing efficiency of the metal workpieces.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of the clamping block of this utility model;

[0019] Figure 3 This is a schematic diagram of the top structure of the clamping block of this utility model;

[0020] Figure 4 This is a schematic diagram of the overall structure of the rubber clamping block of this utility model;

[0021] Figure 5 This is a schematic diagram of the internal cross-sectional structure of the convex shaft of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Fixture base; 11. Insertion hole; 2. Clamping mechanism; 21. Clamping block; 211. L-shaped top plate; 212. Threaded shaft; 213. Threaded rod one; 214. Turning handle one; 22. Side limiting plate; 23. U-shaped frame; 231. Clamping shaft; 232. Limiting plate; 24. Rubber clamping block; 241. Threaded hole; 25. Fixed seat; 251. Threaded rod two; 252. Turning handle two; 3. Protruding shaft; 31. Insertion rod; 32. Limiting ring; 33. Spring; 34. Handle. Detailed Implementation

[0024] 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 scope of protection of the present utility model.

[0025] Please see Figures 1-5 As shown, this utility model is a metalworking fixture, including a fixture base 1, with a plurality of insertion holes 11 on the front side of the fixture base 1, and also including:

[0026] The clamping mechanism 2 is located on the top of the clamping base 1. The clamping mechanism 2 includes two clamping blocks 21 on the top of the clamping base 1. Side limiting plates 22 are fixedly connected to the front and back of each clamping block 21. An L-shaped top plate 211 is fixedly connected to the top of each clamping block 21. At least two rubber clamping blocks 24 are provided on the side of each clamping block 21 that is close to each other. A U-shaped frame 23 is provided on the top of the L-shaped top plate 211. Clamping shafts 231 are fixedly connected to both ends of the U-shaped frame 23. A threaded rod 213 is threadedly connected to the L-shaped top plate 211. One end of the threaded rod 213 is rotatably connected to the U-shaped frame 23, and a throttle handle 214 is fixedly connected to the other end of the threaded rod 213. A fixed seat is fixedly connected to the top right side of the clamping base 1. 25. The fixed base 25 is internally threaded with a threaded rod 251. A throttle 252 is fixedly connected to the right side of the threaded rod 251. The left and right clamping blocks 21 of the threaded rod 251 are rotatably connected. The square metal workpiece is clamped and fixed by the rubber clamping blocks 24 on the two clamping blocks 21. When it is necessary to clamp a round metal workpiece, the throttle 214 is rotated clockwise, so that the threaded rod 213 drives the U-shaped frame 23 to move and moves the clamping shaft 231 to a position beyond the rubber clamping blocks 24. Then the left and right clamping shafts 231 cooperate with each other to clamp and fix the round metal workpiece. This method can satisfy the clamping of metal workpieces of two shapes without the need for subsequent auxiliary clamping, ensuring the fixing effect of the metal workpiece.

[0027] At least two threaded shafts 212 are fixedly connected to the surface of the clamping block 21. The rubber clamping block 24 has a threaded hole 241 inside, and the rubber clamping block 24 is threadedly connected to the threaded shaft 212 through the threaded hole 241.

[0028] There is a gap between the bottom of the U-shaped frame 23 and the L-shaped top plate 211. The bottom of the clamping shaft 231 contacts the top of the clamping block 21. Rubber sleeves are fitted on the outer sides of the threaded rod 1 213 and the threaded rod 251. Two limiting plates 232 are fixedly connected to the surface of the U-shaped frame 23. The two limiting plates 232 are distributed on the front and back of the L-shaped top plate 211.

[0029] A convex shaft 3 is fixedly connected to the side limiting plate 22 on the left front. The convex shaft 3 has a cavity inside, and an insertion rod 31 is slidably connected inside the convex shaft 3. A limiting ring 32 is fixedly connected to the outer surface of the insertion rod 31, and a spring 33 is sleeved on the outer side of the insertion rod 31. A handle 34 is fixedly connected to the front of the insertion rod 31. By pulling the handle 34, the insertion rod 31 is moved, causing the insertion rod 31 to leave the insertion hole 11. At this time, the limiting ring 32 will squeeze the spring 33, and then push the clamping block 21 on the left side for adjustment. This method can quickly adjust the distance between the two clamping blocks 21 without the need for a long time to rotate the threaded rod 251. When the size of the metal workpieces differs greatly, it can be quickly adjusted, improving the fixing efficiency of the metal workpieces.

[0030] The insertion rod 31 slides through the convex shaft 3 and the side limiting plate 22 and extends to the outside. One end of the spring 33 is fixedly connected to the surface of the limiting ring 32, and the other end of the spring 33 is fixedly connected to the inner wall of the convex shaft 3. The insertion rod 31 is adapted to the insertion hole 11, and the handle 34 is set on the outside of the convex shaft 3.

[0031] One specific application of this embodiment is:

[0032] The fixture base 1 is mounted on the worktable of the grinding machine using T-blocks and bolts. When grinding a metal workpiece, first, adjust the left clamping block 21 quickly by pushing and pulling according to the size of the workpiece. Then, pull the handle 34 to move the insertion rod 31 away from the insertion hole 11. At this time, the limit ring 32 will compress the spring 33. Then, push the left clamping block 21 to adjust. This method allows for quick adjustment of the distance between the two clamping blocks 21 without requiring a long subsequent rotation of the threaded rod 251. When the left... After the side clamping block 21 is adjusted, release the handle 34. The insertion rod 31 will spring back to its original position by the elastic force of the spring 33, and the clamping block 21 will be finely adjusted so that the insertion rod 31 is inserted into the corresponding insertion hole 11. This completes the adjustment of the clamping block 21. The side limiting plates 22 on both sides of the clamping block 21 will then limit the clamping block 21, causing it to move linearly. Subsequently, the metal workpiece is placed on the fixture base 1, and different clamping methods are selected according to the shape of the metal workpiece. If the metal workpiece is square, it is clamped by rotating the handle clockwise. Turning the handle 252 will cause the threaded rod 251 to rotate. The threaded rod 251 will then push the right-side clamping block 21 to move. The two clamping blocks 21 will then contact the metal workpiece via the rubber clamping block 24 and clamp it in place. If the metal workpiece is circular, turning the handle 214 clockwise will cause the threaded rod 213 to move the U-shaped frame 23, moving the clamping shaft 231 beyond the position of the rubber clamping block 24. The limiting plate 232 on the U-shaped frame 23 will then limit the movement of the U-shaped frame 23. Positioning the U-shaped frame 23 so that it moves linearly, the left and right clamping shafts 231 cooperate to clamp and fix the circular metal workpiece. This method can satisfy the clamping of metal workpieces of two shapes without the need for subsequent auxiliary clamping parts, ensuring the fixing effect of the metal workpiece. Both the threaded rod 1 213 and the threaded rod 251 are fitted with rubber sleeves on the outside for protection. The rubber clamping block 24 is threaded to the threaded shaft 212 through the threaded hole 241, which facilitates the subsequent disassembly and replacement of the rubber clamping block 24.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it.

Claims

1. A metalworking fixture, comprising a fixture base (1), wherein the fixture base (1) has a plurality of insertion holes (11) on its front side, characterized in that, Also includes: A clamping mechanism (2) is provided on the top of the clamp base (1). The clamping mechanism (2) includes two clamping blocks (21) on the top of the clamp base (1). Side limiting plates (22) are fixedly connected to the front and back of the clamping blocks (21). An L-shaped top plate (211) is fixedly connected to the top of the clamping blocks (21). At least two rubber clamping blocks (24) are provided on the side of the two clamping blocks (21) that are close to each other. A U-shaped frame (23) is provided on the top of the L-shaped top plate (211). Clamping devices are fixedly connected to both ends of the U-shaped frame (23). A threaded rod (213) is threadedly connected to the shaft (231) and the L-shaped top plate (211). One end of the threaded rod (213) is rotatably connected to the U-shaped frame (23), and the other end of the threaded rod (213) is fixedly connected to the handle (214). A fixed seat (25) is fixedly connected to the top right side of the clamp base (1). A threaded rod (251) is threadedly connected to the fixed seat (25). A handle (252) is fixedly connected to the right side of the threaded rod (251). The left side of the threaded rod (251) is rotatably connected to the clamping block (21) on the right side.

2. The metalworking fixture according to claim 1, characterized in that, At least two threaded shafts (212) are fixedly connected to the surface of the clamping block (21), and a threaded hole (241) is opened inside the rubber clamping block (24). The rubber clamping block (24) is threadedly connected to the threaded shaft (212) through the threaded hole (241).

3. A metalworking fixture according to claim 2, characterized in that, There is a gap between the bottom of the U-shaped frame (23) and the L-shaped top plate (211), the bottom of the clamping shaft (231) contacts the top of the clamping block (21), and rubber sleeves are fitted on the outer sides of the threaded rod one (213) and the threaded rod two (251).

4. A metalworking fixture according to claim 3, characterized in that, A convex shaft (3) is fixedly connected to the side limiting plate (22) on the left front. The convex shaft (3) has a cavity inside. A plug rod (31) is slidably connected inside the convex shaft (3). A limiting ring (32) is fixedly connected to the outer surface of the plug rod (31). A spring (33) is sleeved on the outer side of the plug rod (31). A handle (34) is fixedly connected to the front of the plug rod (31).

5. A metalworking fixture according to claim 4, characterized in that, The insertion rod (31) slides through the convex shaft (3) and the side limiting plate (22) and extends to the outside. One end of the spring (33) is fixedly connected to the surface of the limiting ring (32), and the other end of the spring (33) is fixedly connected to the inner wall of the convex shaft (3).

6. A metalworking fixture according to claim 4, characterized in that, The insertion rod (31) is adapted to the insertion hole (11), and the handle (34) is located on the outside of the convex shaft (3).

7. A metalworking fixture according to claim 3, characterized in that, The U-shaped frame (23) has two limiting plates (232) fixedly connected to its surface, and the two limiting plates (232) are distributed on the front and back of the L-shaped top plate (211).

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