Anti-deformation clamping tool for thin-wall castings

Abstract

The utility model relates to thin -walled casting clamping technical field especially relates to a kind of anti-deformation clamping tool of thin -walled casting.The anti-deformation clamping tool of thin -walled casting includes: workbench, insert block, elastic component, engagement slot, engagement assembly, installation chamber, the top of workbench is symmetrically provided with long hole, the inner wall of long hole is symmetrically slidably connected with link block, the top of two link blocks is externally fixedly connected with connection long block, the similar side inside of two connection long blocks is slidably connected with insert block, the similar side of multiple insert blocks is fixedly connected with connecting block, the similar side of multiple connecting blocks is fixedly connected with link rod, the similar side of multiple link rods is fixedly connected with clamping block.The utility model greatly shortens the time of changing type, solves the problem of time-consuming and labor-consuming of traditional tooling, then improves production efficiency, avoids local stress concentration, effectively inhibits thin -walled casting processing deformation.

Description

Technical Field

[0001] This utility model relates to the field of thin-walled casting clamping technology, and in particular to a deformation-resistant clamping fixture for thin-walled castings. Background Technology

[0002] Thin-walled castings refer to metal castings with relatively thin walls. Due to their structural characteristics, these parts have poor rigidity and low strength. During processing, improper clamping can easily cause deformation, affecting dimensional accuracy and product quality. Therefore, anti-deformation clamping fixtures are needed to stabilize the workpiece and avoid processing errors.

[0003] Most anti-deformation clamping fixtures for thin-walled castings usually require changing the clamping plate according to the shape of the casting and processing requirements. When clamping, multiple contact points or surfaces are used to surround the workpiece to disperse the clamping force and avoid local stress concentration, thereby preventing deformation. However, when changing the clamping plate according to the shape of the casting and processing requirements, most of the time, tools are used to tighten the bolts and nuts to complete the replacement. However, this is not only cumbersome to operate, but also time-consuming and labor-intensive, increasing the intensity of manual labor and reducing production efficiency.

[0004] Therefore, it is necessary to provide a new anti-deformation clamping fixture for thin-walled castings to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a deformation-resistant clamping fixture for thin-walled castings.

[0006] This utility model provides a deformation-resistant clamping fixture for thin-walled castings, comprising: a worktable, insert blocks, elastic components, engaging grooves, engaging components, and an installation chamber. The top of the worktable has symmetrically symmetrically arranged elongated holes, with connecting blocks symmetrically slidably connected to the inner walls of the elongated holes. Connecting blocks are fixedly connected to the outer tops of two connecting blocks. Insert blocks are slidably connected to the inner sides of adjacent sides of two connecting blocks. Connecting blocks are fixedly connected to adjacent sides of multiple insert blocks. Connecting rods are fixedly connected to adjacent sides of multiple connecting blocks. Connecting rods are fixedly connected to adjacent sides of multiple connecting rods. A clamping block is fixedly connected, and multiple extrusion rods are slidably connected inside the adjacent sides of the clamping blocks. An elastic component is installed inside the clamping block. A locking groove is opened at the top of the insertion block. A sliding chamber is opened inside the top of the connecting long block above the insertion block. A locking component is installed on the inner wall of the sliding chamber. Installation chambers are symmetrically opened inside the worktable. A sliding block is slidably connected to the inner wall of the installation chamber. A threaded rod is rotatably connected to the inner wall of one installation chamber. A screwing disc is fixedly connected to one end of the threaded rod. A fixing rod is fixedly connected to the inner wall of the other installation chamber.

[0007] Preferably, the elastic component includes multiple receiving chambers, which are formed inside the clamping block. A compression spring is provided inside the receiving chamber, and a limiting plate is fixedly connected to one end of the compression spring away from the inner wall of the receiving chamber.

[0008] Preferably, the engaging assembly includes a strong spring, which is installed on the inner wall of the sliding chamber. The connecting long block is slidably connected to the inner wall of the sliding chamber with a sliding rod. The bottom end of the sliding rod is fixedly connected to an engaging rod. The outer bottom end of the sliding rod is fixedly connected to a limit ring. The top end of the sliding rod is fixedly connected to a screwing block.

[0009] Preferably, the top end of the sliding block and the bottom end of the connecting block are fixedly connected.

[0010] Preferably, the inner walls of two of the sliding blocks are threaded to the outer side of the threaded rod, while the inner walls of the other two sliding blocks are slidably connected to the outer side of the fixed rod.

[0011] Preferably, the side of the limiting plate away from the compression spring is fixedly connected to the side of the compression rod, and the outside of the limiting plate is slidably connected to the inner wall of the receiving chamber.

[0012] Preferably, the top end of the strong spring is fixedly connected to the top end of the inner wall of the sliding chamber, and the bottom end of the strong spring is fixedly connected to the top end of the limiting ring.

[0013] Preferably, the outer side of the limiting ring is slidably connected to the inner wall of the sliding chamber, and the outer side of the engaging rod is engaged with the inner wall of the engaging groove.

[0014] Compared with related technologies, the anti-deformation clamping fixture for thin-walled castings provided by this utility model has the following beneficial effects: Efficient changeover: Eliminating the cumbersome process of using tools to tighten bolts, the clamping blocks can be quickly replaced by sliding rods, locking rods, and powerful springs. Simply pull the block upwards to release the lock and remove the old block. After inserting the new block, the spring automatically resets and locks the block, significantly shortening changeover time and solving the problem of time-consuming and labor-intensive traditional tooling, thereby improving production efficiency.

[0015] Deformation prevention optimization: The clamping force is evenly distributed through multiple contact points by the extrusion spring, extrusion rod, and limiting plate to avoid local stress concentration. The spacing of the connecting blocks is adjusted by the linkage of the threaded rod and sliding block. Combined with the ring clamping of the clamping block, stable and suitable clamping is achieved, which effectively suppresses the deformation of thin-walled castings during processing. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of a deformation-resistant clamping fixture for thin-walled castings provided by this utility model; Figure 2 for Figure 1The diagram shows the structure of the sliding rod. Figure 3 for Figure 1 The diagram shows the structure of the insert block; Figure 4 for Figure 1 The diagram shows the structure of the workbench.

[0017] The following are the labeling elements in the diagram: 1. Workbench; 2. Long slot; 3. Connecting block; 4. Connecting block; 5. Insert block; 6. Connecting block; 7. Connecting rod; 8. Clamping block; 9. Extrusion rod; 10. Receiving chamber; 11. Extrusion spring; 12. Limiting plate; 13. Engaging groove; 14. Sliding chamber; 15. Strong spring; 16. Sliding rod; 17. Engaging rod; 18. Limiting ring; 19. Tightening block; 20. Mounting chamber; 21. Sliding block; 22. Threaded rod; 23. Tightening plate; 24. Fixing rod. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0020] Please see Figures 1 to 4 A deformation-resistant clamping fixture for thin-walled castings includes: a worktable 1, with elongated holes 2 symmetrically opened at the top of the worktable 1, and connecting blocks 3 symmetrically slidably connected to the inner walls of the elongated holes 2. The connecting blocks 3 can slide flexibly within the elongated holes 2, and connecting blocks 4 are fixedly connected to the outer tops of the two connecting blocks 3. The connecting blocks 4 can be adjusted in position at the top of the worktable 1 by means of the cooperation between the connecting blocks 3 and the elongated holes 2.

[0021] The insert block 5 is one of the key components for quickly replacing the clamping block 8. Insert blocks 5 are slidably connected to the inside of the two connecting blocks 4 on their adjacent sides. Insert blocks 5 can slide smoothly within the connecting blocks 4. Connecting blocks 6 are fixedly connected to the adjacent sides of multiple insert blocks 5. Connecting blocks 6 serve as a connection transition. Connecting rods 7 are fixedly connected to the adjacent sides of multiple connecting blocks 6. Connecting rods 7 further extend and connect. Clamping blocks 8 are fixedly connected to the adjacent sides of multiple connecting rods 7. Clamping blocks 8 are used to directly contact and clamp the thin-walled casting. Multiple extrusion rods 9 are slidably connected to the inside of the adjacent sides of multiple clamping blocks 8. Extrusion rods 9 can extend and retract within the clamping blocks 8.

[0022] The elastic component is an important structure to ensure the uniform distribution of clamping force. The elastic component is installed inside the clamping block 8. The elastic component includes multiple receiving chambers 10. The multiple receiving chambers 10 are opened inside the clamping block 8. The receiving chambers 10 provide installation space for the compression spring 11 and the limiting plate 12. The compression spring 11 is installed inside the receiving chamber 10. The compression spring 11 has elastic deformation capability. The end of the compression spring 11 away from the inner wall of the receiving chamber 10 is fixedly connected to the limiting plate 12. The limiting plate 12 can limit the deformation range of the compression spring 11. The side of the limiting plate 12 away from the compression spring 11 is fixedly connected to the side of the compression rod 9, so that the extension and retraction of the compression rod 9 can drive the limiting plate 12 to compress or release the compression spring 11. At the same time, the outside of the limiting plate 12 is slidably connected to the inner wall of the receiving chamber 10 to ensure that the limiting plate 12 slides stably within the receiving chamber 10.

[0023] The top of the insert block 5 is provided with a locking groove 13, which is used to cooperate with the locking rod 17 to achieve locking and fixing. The top of the connecting long block 4 is provided with a sliding chamber 14 above the insert block 5. The sliding chamber 14 provides installation and movement space for the locking assembly.

[0024] The engaging assembly is used to achieve quick engagement and disengagement of the insert block 5 and the connecting elongated block 4. The engaging assembly, including a strong spring 15, is installed on the inner wall of the sliding chamber 14 and provides elastic restoring force. Each connecting elongated block 4 is slidably connected to a sliding rod 16 on the inner wall of the sliding chamber 14. The sliding rod 16 can slide up and down within the sliding chamber 14. A engaging rod 17 is fixedly connected to the bottom end of the sliding rod 16, and the engaging rod 17 engages with the engaging groove 13. A limit ring 18 is fixedly connected to the outer bottom end of the sliding rod 16. 8 can limit the sliding stroke of the sliding rod 16, and the top end of the strong spring 15 is fixedly connected to the top end of the inner wall of the sliding chamber 14, and the bottom end of the strong spring 15 is fixedly connected to the top end of the limiting ring 18, so that the elastic force of the strong spring 15 can act on the sliding rod 16 through the limiting ring 18. The outer side of the limiting ring 18 is slidably connected to the inner wall of the sliding chamber 14 to ensure the stable sliding of the limiting ring 18. The outer side of the locking rod 17 is locked to the inner wall of the locking groove 13 to achieve locking and fixing. The top end of the sliding rod 16 is fixedly connected to the turning block 19, and the sliding rod 16 can be driven to move by operating the turning block 19.

[0025] Installation chambers 20 are symmetrically arranged inside the workbench 1. Sliding blocks 21 are slidably connected to the inner walls of each installation chamber 20. The top end of each sliding block 21 is fixedly connected to the bottom end of a connecting block 3, allowing the movement of the sliding block 21 to drive the movement of the connecting block 3. A threaded rod 22 is rotatably connected to the inner wall of one installation chamber 20. The threaded rod 22 can rotate within the installation chamber 20. One end of the threaded rod 22 is fixedly connected to a turning disc 23, which rotates within the chamber. Twisting the disc 23 can drive the threaded rod 22 to rotate. A fixed rod 24 is fixedly connected to the inner wall of another mounting chamber 20. The fixed rod 24 provides sliding guidance for the sliding blocks 21. The inner walls of two sliding blocks 21 are threadedly connected to the outer side of the threaded rod 22. Rotation of the threaded rod 22 can drive the two sliding blocks 21 to slide in the mounting chamber 20. The inner walls of the other two sliding blocks 21 are slidably connected to the outer side of the fixed rod 24 and can slide along the fixed rod 24, thereby realizing the position adjustment of components such as the connecting long block 4.

[0026] The working principle of the anti-deformation clamping fixture for thin-walled castings provided by this utility model is as follows: Step 1: First, locate the turning plate 23 on one side of the workbench 1. When the turning plate 23 is rotated, the threaded rod 22 fixedly connected to it will rotate synchronously. Since the inner wall of some sliding blocks 21 is threadedly connected to the outside of the threaded rod 22, under the force of the rotation of the threaded rod 22, these threaded sliding blocks 21 will slide along the inner wall of the mounting chamber 20. At the same time, the inner wall of the other two sliding blocks 21 is slidably connected to the outside of the fixed rod 24, and will move synchronously with the threaded sliding blocks 21. The top of the sliding block 21 is fixedly connected to the bottom of the connecting block 3. The connecting block 3 is symmetrically slidably connected to the inner wall of the elongated hole 2, and a connecting long block 4 is fixedly connected to the outside of the top. Therefore, the connecting long block 4 will adjust the spacing at the top of the workbench 1 along the direction of the elongated hole 2 as the sliding block 21 slides, so that the distance between the two connecting long blocks 4 is adapted to the approximate size of the casting to be processed. Step 2: If the thin-walled casting to be processed has a special shape, it is necessary to replace the clamping block 8 with a corresponding shape. The operation is as follows: Locate the screwing block 19 at the top of the connecting long block 4, pull the screwing block 19 upward, and the sliding rod 16 fixedly connected to it will move upward along the inner wall of the sliding chamber 14 along with the locking rod 17 and the limiting ring 18. At this time, the strong spring 15 is stretched. After the locking rod 17 moves upward, its locking state with the locking groove 13 at the top of the insert block 5 is released. Then the insert block 5 connected with the connecting rod 7 and the connecting block 6 can be inserted. Pull out the old clamping block 8 from the inside of the connecting block 4, and prepare the clamping block 8 and connecting components that are adapted to the shape of the new casting. Align the insert 5 with the sliding channel of the connecting block 4 and insert it. After the insert 5 is fully inserted, loosen the screwing block 19. The strong spring 15 returns to its original position and retracts, which drives the sliding rod 16 and the locking rod 17 to move down. The locking rod 17 is re-engaged into the locking groove 13 at the top of the insert 5, so as to quickly fix the new clamping block 8 without the need to use tools to tighten the bolts and nuts, thus simplifying the replacement process. Step 3: Place the thin-walled casting to be processed on the worktable 1, in the corresponding position between the two connecting blocks 4, and fine-tune the spacing of the connecting blocks 4 again. This operation can be repeated by turning the disc in step 1, so that the clamping block 8 gradually approaches the casting. As the clamping block 8 contacts the casting, the extrusion rod 9 inside the clamping block 8 will retract into the receiving chamber 10 due to the resistance of the casting. The extrusion spring 11 is compressed, generating a reverse elastic force. Multiple extrusion rods 9, together with the extrusion spring 11 and the limiting disc 12, can evenly distribute the clamping force on the surface of the casting. By using multiple contact points to surround the workpiece, local stress concentration is avoided, and deformation-proof clamping is achieved.

[0027] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A clamping fixture for preventing deformation of thin-walled castings, characterized in that, include: The workbench (1) has elongated holes (2) symmetrically opened at the top of the workbench (1). Connecting blocks (3) are symmetrically slidably connected to the inner wall of the elongated holes (2). Connecting blocks (4) are fixedly connected to the top of the two connecting blocks (3). Insert (5), insert (5) is slidably connected to the interior of the two adjacent sides of the connecting long blocks (4), connecting block (6) is fixedly connected to the adjacent sides of the multiple insert (5), connecting rod (7) is fixedly connected to the adjacent sides of the multiple connecting blocks (6), clamping block (8) is fixedly connected to the adjacent sides of the multiple connecting rods (7), and multiple squeezing rod (9) is slidably connected to the interior of the adjacent sides of the multiple clamping blocks (8). The elastic component is installed inside the clamping block (8); The top of the insert block (5) is provided with a locking groove (13), and the top of the connecting long block (4) is provided with a sliding chamber (14) above the insert block (5). The engaging assembly is installed on the inner wall of the sliding chamber (14); The installation chambers (20) are symmetrically provided inside the workbench (1). The inner wall of the installation chambers (20) is slidably connected to a sliding block (21). The inner wall of one of the installation chambers (20) is rotatably connected to a threaded rod (22). One end of the threaded rod (22) is fixedly connected to a screwing disc (23). The inner wall of the other installation chamber (20) is fixedly connected to a fixing rod (24).

2. The anti-deformation clamping fixture for thin-walled castings according to claim 1, characterized in that, The elastic component includes multiple receiving chambers (10), which are opened inside the clamping block (8). A compression spring (11) is provided inside the receiving chamber (10), and a limit plate (12) is fixedly connected to one end of the compression spring (11) away from the inner wall of the receiving chamber (10).

3. The anti-deformation clamping fixture for thin-walled castings according to claim 1, characterized in that, The engaging assembly includes a strong spring (15), which is installed on the inner wall of the sliding chamber (14). The connecting long block (4) is slidably connected to the inner wall of the sliding chamber (14) with a sliding rod (16). The bottom end of the sliding rod (16) is fixedly connected to an engaging rod (17). The outer bottom end of the sliding rod (16) is fixedly connected to a limit ring (18). The top end of the sliding rod (16) is fixedly connected to a screwing block (19).

4. The anti-deformation clamping fixture for thin-walled castings according to claim 1, characterized in that, The top end of the sliding block (21) is fixedly connected to the bottom end of the connecting block (3).

5. The anti-deformation clamping fixture for thin-walled castings according to claim 1, characterized in that, Two of the sliding blocks (21) have their inner walls threaded to the outside of the threaded rod (22), while the other two sliding blocks (21) have their inner walls slidably connected to the outside of the fixed rod (24).

6. The anti-deformation clamping fixture for thin-walled castings according to claim 2, characterized in that, The side of the limiting plate (12) away from the compression spring (11) is fixedly connected to the side of the compression rod (9), and the outside of the limiting plate (12) is slidably connected to the inner wall of the receiving chamber (10).

7. The anti-deformation clamping fixture for thin-walled castings according to claim 3, characterized in that, The top end of the strong spring (15) is fixedly connected to the top end of the inner wall of the sliding chamber (14), and the bottom end of the strong spring (15) is fixedly connected to the top end of the limiting ring (18).

8. The anti-deformation clamping fixture for thin-walled castings according to claim 3, characterized in that, The outer side of the limiting ring (18) is slidably connected to the inner wall of the sliding chamber (14), and the outer side of the locking rod (17) is engaged with the inner wall of the locking groove (13).

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