Automatic clamping tool for valve lifter housing

Abstract

The utility model relates to automatic clamping frock technical field discloses a kind of valve tappet outer shell automatic clamping frock, including base one, the base one top is provided with base two, the base one top is provided with clamping mechanism, the base two top is provided with positioning assembly, the base one top is fixedly connected with pad one;The clamping mechanism includes oil cylinder one, chuck, clamping block, and the oil cylinder bottom end is fixedly connected in pad one top, and the chuck is slidably connected in oil cylinder one top.In the utility model, first, by programming PLM program and processing program, base one is driven to the program specified position, and then the program is run to start oil cylinder one to drive chuck and clamping block to tighten, so that the effect of automatic loosening and stable and reliable clamping force is achieved, and the effect of controllable clamping deformation is achieved, the problem that automatic clamping frock is automatically loosened and clamping force is unstable during work, and clamping deformation cannot be controlled is solved, and the convenience of automatic clamping frock is improved.

Description

Technical Field

[0001] This utility model relates to the field of automatic clamping fixture technology, and in particular to an automatic clamping fixture for valve tappet housings. Background Technology

[0002] In automated clamping processes, the clamping accuracy and efficiency of valve tappet housings have a critical impact on machining quality and production efficiency. To achieve rapid and stable positioning and clamping of valve tappet housings, specialized automated clamping fixtures are typically required. These fixtures usually include positioning references, clamping mechanisms, and error-proofing detection modules. Especially in high-volume machining, the repeatability and ease of operation of the clamping directly affect machining consistency and cycle time. Therefore, developing a high-rigidity, intelligent, and adaptable automated clamping fixture for valve tappet housings has become an important direction for process optimization.

[0003] In existing technologies, the tooling used for clamping valve tappet housings generally includes a positioning and clamping mechanism, a drive system, and an auxiliary detection structure. Structurally, the tooling has a reference surface for positioning the inner hole or outer circle of the valve tappet housing, and is often fixed manually or using simple mechanical structures. In practical use, traditional machining center clamping tooling often uses manual or simple mechanical structures for fixing, which is not only cumbersome and time-consuming, but also prone to insecure clamping during machining, causing displacement of the valve tappet housing during handling and affecting machining accuracy.

[0004] However, existing automatic clamping fixtures still have certain problems in practical applications. On the one hand, the valve tappet housing needs to be moved and adjusted in position. In traditional structures, it is often fixed manually or by simple mechanical means, resulting in unstable clamping force and uncontrollable clamping deformation. On the other hand, the positioning accuracy is also inaccurate. These problems reduce the operating efficiency and system stability of the automatic clamping fixture, and there is an urgent need to optimize the structural design. Therefore, an automatic clamping fixture for valve tappet housing is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an automatic clamping fixture for valve tappet housings, which aims to improve the problems of existing technologies such as the inability to automatically release the clamp, unstable clamping force, and uncontrollable clamping deformation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automatic clamping fixture for valve tappet housing, comprising a base one, a base two disposed at the top of the base one, a clamping mechanism disposed at the top of the base one, a positioning component disposed at the top of the base two, and a pad one fixedly connected to the top of the base one.

[0007] The clamping mechanism includes a hydraulic cylinder, a chuck, and a clamping block. The bottom end of the hydraulic cylinder is fixedly connected to the top end of the pad, the chuck is slidably connected to the top end of the hydraulic cylinder, the bottom end of the clamping block is fixedly connected to the top end of the chuck, the chuck has a sliding groove inside, a support pad is fixedly connected to the top end of the hydraulic cylinder, and a support block is fixedly connected to the top end of the support pad.

[0008] As a further description of the above technical solution:

[0009] The positioning component includes a second positioning block, the bottom of which is fixedly connected to the top of the second base, and a second positioning frame is fixedly connected to the top of the second positioning block.

[0010] As a further description of the above technical solution:

[0011] The outer wall of the second base is fixedly connected with a release oil port and a clamping oil port.

[0012] As a further description of the above technical solution:

[0013] The second positioning frame is fixedly connected to an inclined block, and the top of the oil cylinder is fixedly connected to a first positioning block.

[0014] As a further description of the above technical solution:

[0015] The top of the positioning block is fixedly connected to the positioning frame, and the outer wall of the inclined block slides on the outer wall of the positioning frame.

[0016] As a further description of the above technical solution:

[0017] A pad is fixedly connected to the top of the base two, a hydraulic cylinder is fixedly connected to the top of the pad two, and a material feeding block is fixedly connected to the top of the hydraulic cylinder two.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the feeding block is provided with a sliding surface, and the outer wall of the positioning frame slides on the sliding surface.

[0020] As a further description of the above technical solution:

[0021] The top of the feeding block is fixedly connected to a second support block, and the inside of the feeding block is provided with a raw material shell.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, firstly, by compiling a PLM program and a processing program, the transportation of the base is controlled. After the base is moved to the position specified by the program, the program starts the hydraulic cylinder to drive the chuck and clamping block to tighten, clamping the raw material shell. After the raw material shell is moved to the designated position, the hydraulic cylinder releases the raw material shell, achieving the effect of automatic clamping and stable and reliable clamping force, and controllable clamping deformation. This solves the problem of unstable clamping force and uncontrollable clamping deformation in automatic clamping fixtures during operation, and improves the convenience of automatic clamping fixtures.

[0024] 2. In this utility model, after the base moves to the designated position through the PLM program and descends, the positioning frame slides over the sliding surface to adjust its position, and the inclined block slides over the outer wall of the positioning frame. The two work together to adjust the position accurately, and then the chuck and the clamping block are driven to the accurate position. After that, the hydraulic cylinder is activated to grab the raw material shell, which achieves the effect of positioning accuracy. This solves the problem of inaccurate positioning of automatic clamping fixtures during operation and improves the accuracy of automatic clamping fixtures. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of an automatic clamping fixture for valve tappet housings proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the chuck used in an automatic clamping fixture for valve tappet housings proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the support block of an automatic clamping fixture for valve tappet housings proposed in this utility model.

[0028] Figure 4 This is a schematic diagram of the base of an automatic clamping fixture for valve tappet housings proposed in this utility model.

[0029] Figure 5 This is a schematic diagram of the material unloading block of an automatic clamping fixture for valve tappet housings proposed in this utility model.

[0030] Figure 6 This is a schematic diagram of the inclined block of an automatic clamping fixture for valve tappet housings proposed in this utility model.

[0031] Legend:

[0032] 1. Base 1; 2. Base 2; 3. Pad 1; 4. Hydraulic Cylinder 1; 5. Chuck; 6. Clamping Block; 7. Support Pad; 8. Support Block 1; 9. Sliding Groove; 10. Positioning Block 1; 11. Positioning Frame 1; 12. Pad 2; 13. Hydraulic Cylinder 2; 14. Feeding Block; 15. Positioning Block 2; 16. Positioning Frame 2; 17. Inclined Block; 18. Support Block 2; 19. Sliding Surface; 20. Loosening Oil Port; 21. Clamping Oil Port; 22. Raw Material Shell. Detailed Implementation

[0033] 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 protection scope of the present utility model.

[0034] Reference Figures 1-3 An automatic clamping fixture for valve tappet housings includes a base 1 for integrating a clamping mechanism and a positioning component, providing a stable mounting reference surface, and allowing for the enlargement of the fixing module to transport multiple clamping molds at once, thus accelerating transport efficiency. A base 2 is located at the top of the base 1 for mounting the positioning component, achieving precise workpiece alignment, and allowing for the enlargement of the fixing module to fix multiple positioning molds, further accelerating transport efficiency. The clamping mechanism at the top of the base 1 provides stable and reliable clamping force through a hydraulic cylinder 4. An automatic release chuck 5 and a clamping block 6 automatically clamp the raw material housing 22. The positioning component at the top of the base 2 has a positioning accuracy of up to 0.01 mm, ensuring precise and accurate transport of the raw material housing 22. A pad 3 is fixedly connected to the top of the base 1 as the mounting base for the clamping mechanism, providing a stable support base.

[0035] The clamping mechanism includes a hydraulic cylinder 4, a chuck 5, and a clamping block 6. The bottom end of the hydraulic cylinder 4 is fixedly connected to the top end of the pad 3. The hydraulic cylinder 4 serves as a hydraulic power source, providing stable and reliable clamping force and controlling the transport of the chuck 5 and the clamping block 6 to prevent the raw material shell 22 from falling off during transport. The chuck 5 is slidably connected to the top end of the hydraulic cylinder 4 and serves as a clamping actuator. It guides the movement of the clamping block 6 through the internal sliding groove 9 and is stably connected to the hydraulic cylinder 4, transmitting the power of the hydraulic cylinder 4 stably. The bottom end of the clamping block 6 is fixedly connected to the top end of the chuck 5 and is used to directly clamp the valve lifter shell workpiece. Its special contour design can adapt to different models of valve lifter shells and can prevent damage to the raw material shell 22 during transport. The chuck 5 has a sliding groove 9 inside to precisely limit the radial movement trajectory of the clamping block 6 and ensure clamping concentricity. A support pad 7 is fixedly connected to the top end of the hydraulic cylinder 4, and a support block 8 is fixedly connected to the top end of the support pad 7 as an auxiliary support point for the workpiece to prevent deformation during processing.

[0036] Reference Figures 4-6 The positioning assembly includes a second positioning block 15, which supports the second positioning frame 16 and bears the processing load. The bottom end of the second positioning block 15 is fixedly connected to the top end of the second base 2. The top end of the second positioning block 15 is fixedly connected to the second positioning frame 16, which is used to install the inclined block 17 and form a workpiece positioning reference surface, extending the length of the inclined block 17. The outer wall of the second base 2 is fixedly connected to a release oil port 20, which is used to connect the hydraulic pipeline to input release pressure oil. The outer wall of the second base 2 is fixedly connected to a clamping oil port 21, which is used to connect the hydraulic pipeline to input clamping pressure oil. The second positioning frame 16 is fixedly connected to the inclined block 17, whose inclined surface slides with the first positioning frame 11 to achieve accurate positioning. This ensures accurate transportation of the raw material shell 22 during transportation and prevents inaccurate transportation due to inaccurate positioning. The top end of the first cylinder 4 is fixedly connected to a first positioning block 10, which serves as a movable positioning base and moves with the cylinder. During descent, it slides with the sliding surface 19 and the first positioning frame 11 and the inclined block. 17. The combination of these components further enhances accuracy. Positioning block 10 is fixedly connected to positioning frame 11 at its top. Its outer wall cooperates with inclined block 17 and sliding surface 19 to ensure positioning accuracy. The outer wall of inclined block 17 slides on the outer wall of positioning frame 11. The top of base 2 is fixedly connected to pad 2 12, which is used to install cylinder 2 13 and distribute the load. The top of pad 2 12 is fixedly connected to cylinder 2 13, which serves as an auxiliary power source to drive the lifting of feeding block 14. The top of cylinder 2 13 is fixedly connected to feeding block 14, which is used to support raw material shell 22. Its sliding surface 19 cooperates with positioning frame 11 for guidance. The outer wall of feeding block 14 has a sliding surface 19. The outer wall of positioning frame 11 slides on the surface of sliding surface 19. The top of feeding block 14 is fixedly connected to support block 2 18. Raw material shell 22 is set inside feeding block 14. The outer wall of raw material shell 22 slides inside feeding block 14. The raw material shell 22 can be clamped and pulled up by chuck 5 and chuck 6, achieving the effect of positioning accuracy.

[0037] Working principle: First, by programming the PLM program and the processing program, the transportation of the base 1 is controlled. After the base 1 is moved to the position specified by the program, the program starts the hydraulic cylinder 4 to drive the chuck 5 and the clamping block 6 to tighten. The chuck 5 and the clamping block 6 tighten accurately to clamp the raw material shell 22. After the raw material shell 22 is moved to the designated position, the hydraulic cylinder 4 releases the chuck 5 and the clamping block 6 to put the raw material shell 22 down. This achieves the effect of automatic clamping and release with stable and reliable clamping force, and the effect of controllable clamping deformation.

[0038] After the base 1 moves to the designated position through the PLM program and descends, the positioning frame 11 slides over the sliding surface 19 to adjust the position of the chuck 5 and the locking block 6. The inclined block 17 slides over the outer wall of the positioning frame 11, and they work together to adjust the position accurately. After the chuck 5 and the locking block 6 are moved to the accurate position, the hydraulic cylinder 4 is started to grab the raw material shell 22.

Claims

1. A valve lifter housing automatic chucking tool comprising a base one (1), characterized in that: The top of the base one (1) is provided with a base two (2), the top of the base one (1) is provided with a clamping mechanism, the top of the base two (2) is provided with a positioning component, and the top of the base one (1) is fixedly connected with a pad one (3). The clamping mechanism includes a hydraulic cylinder (4), a chuck (5), and a clamping block (6). The bottom end of the hydraulic cylinder (4) is fixedly connected to the top end of the pad (3). The chuck (5) is slidably connected to the top end of the hydraulic cylinder (4). The bottom end of the clamping block (6) is fixedly connected to the top end of the chuck (5). A sliding groove (9) is provided inside the chuck (5). A support pad (7) is fixedly connected to the top end of the hydraulic cylinder (4). A support block (8) is fixedly connected to the top end of the support pad (7).

2. The automatic clamping fixture for valve tappet housings according to claim 1, characterized in that: The positioning component includes a second positioning block (15), the bottom of which is fixedly connected to the top of the second base (2), and the top of the second positioning block (15) is fixedly connected to a second positioning frame (16).

3. The rocker outer shell automatic chucking tool of claim 2, wherein: The outer wall of the base 2 (2) is fixedly connected with a release oil port (20) and a clamping oil port (21).

4. The automatic clamping fixture for valve tappet housings according to claim 3, characterized in that: The second positioning frame (16) is fixedly connected to the inclined block (17), and the top of the first oil cylinder (4) is fixedly connected to the first positioning block (10).

5. The automatic clamping fixture for valve tappet housing according to claim 4, characterized in that: The top of the positioning block (10) is fixedly connected to the positioning frame (11), and the outer wall of the inclined block (17) slides on the outer wall of the positioning frame (11).

6. A rocker arm shaft housing automatic chucking tool according to claim 5, characterized in that: The base 2 (2) is fixedly connected to the top of the pad 2 (12), the pad 2 (12) is fixedly connected to the top of the oil cylinder 2 (13), and the oil cylinder 2 (13) is fixedly connected to the top of the discharge block (14).

7. The rocker outer shell automatic chucking tool of claim 6, wherein: The outer wall of the feeding block (14) is provided with a sliding surface (19), and the outer wall of the positioning frame (11) slides on the surface of the sliding surface (19).

8. The rocker arm housing automatic chucking tool according to claim 7, characterized in that: The top of the feeding block (14) is fixedly connected to a support block two (18), and the inside of the feeding block (14) is provided with a raw material shell (22).

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