A special lathe mold for hydraulic caliper jaw plates

Abstract

This utility model discloses a lathe mold for a hydraulic caliper jaw plate, comprising a positioning body with a stepped cylindrical structure. The axial center of the positioning body has a connecting hole adapted to the lathe spindle. The inner wall of the hole is provided with at least one set of positioning keyways, within which a clamping assembly is connected. The assembly includes an adjusting screw, a clamping block, and a rotating head. This mold achieves precise coaxial positioning with the lathe spindle, providing convenient and stable clamping. Reinforcing ribs enhance structural strength, while the positioning pin holes and fastening screw holes improve connection stability and accuracy. The clamping block is made of alloy steel to extend its lifespan, and the rotating slots reduce operating effort, thereby improving machining accuracy and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of lathe mold technology, specifically to a special lathe mold for hydraulic caliper jaw plates. Background Technology

[0002] In the machining process of hydraulic caliper jaw plates, the lathe mold, as a core tooling component, directly determines the machining quality and production efficiency of the product. As a key load-bearing component in the hydraulic braking system, the hydraulic caliper jaw plate has extremely high requirements for surface precision, dimensional tolerances, and structural strength. In particular, the machining accuracy of the jaw plate teeth directly affects the braking effect and service life of the caliper.

[0003] Currently, traditional lathe dies generally suffer from insufficient positioning accuracy during their mating with the lathe spindle. Most dies use a single keyway positioning or a tapered surface mating method, which is prone to radial displacement due to centrifugal force during high-speed rotation machining. This results in defects such as excessive ellipticity and asymmetrical tooth profiles in the machined tooth plates. Furthermore, existing clamping structures often employ direct bolt tightening or eccentric sleeve clamping, which is not only cumbersome to operate but also results in uneven clamping force distribution. After prolonged machining, loosening can occur, causing workpiece vibration, which in turn leads to accelerated tool wear and excessive surface roughness.

[0004] Furthermore, existing lathe molds have poor versatility; different models of hydraulic caliper jaw plates require dedicated molds, leading to high tooling costs for manufacturers. Moreover, the main structure of traditional molds lacks sufficient strength, making them prone to deformation under large cutting forces, affecting the consistency of subsequent machining. Additionally, replacing easily damaged parts of the clamping components is inconvenient; clamping blocks are often made of ordinary steel, which is prone to wear and deformation during repeated clamping, further reducing positioning accuracy. These problems not only increase the scrap rate in the production process but also prolong mold changeover time, severely restricting the mass production efficiency of hydraulic caliper jaw plates. Therefore, a dedicated lathe mold is urgently needed to solve these technical bottlenecks. Utility Model Content

[0005] The purpose of this utility model is to provide a special lathe mold for hydraulic caliper jaw plates to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A special lathe mold for hydraulic caliper jaw plates includes a positioning body. The positioning body is generally in the form of a stepped cylindrical structure, which is used to achieve coaxial positioning connection with the lathe spindle. A connection hole adapted to the lathe spindle is opened at its axial center. At least one set of axially extending positioning keyways are opened on the inner wall of the connection hole.

[0008] A clamping assembly is connected inside the positioning keyway. The clamping assembly includes an adjusting screw that is threaded through the positioning body and inserted into the positioning keyway. The insertion end of the adjusting screw is abutted against a clamping block disposed in the positioning keyway. The end of the adjusting screw away from the clamping block is connected to a rotating head disposed outside the positioning body.

[0009] Preferably, the sidewall of the positioning body is connected to multiple sets of reinforcing ribs.

[0010] Preferably, the reinforcing rib and the positioning body are integrally forged structures.

[0011] Preferably, the inner wall of the connecting hole is provided with four sets of circumferentially distributed axially extending positioning keyways.

[0012] Preferably, the side of the positioning body has multiple sets of evenly distributed positioning pin holes.

[0013] Preferably, the positioning body has multiple sets of evenly distributed fastening screw holes on one end face near the lathe spindle, and fastening screws are connected to the fastening screw holes.

[0014] Preferably, the positioning body has three sets of evenly distributed fastening screw holes on one end face near the lathe spindle.

[0015] Preferably, the clamping block is made of alloy steel.

[0016] Preferably, the rotating head has an axially formed rotating groove into which a lever can be inserted.

[0017] This utility model has the following beneficial effects:

[0018] 1. By setting up a positioning body, connecting holes and positioning keyways, this utility model can achieve precise coaxial positioning connection with the lathe spindle, ensuring positioning accuracy during the machining process.

[0019] 2. The clamping assembly makes clamping the lathe spindle more convenient. By rotating the rotating head, the adjusting screw is driven to rotate, which in turn pushes the clamping block to clamp the lathe spindle, ensuring a stable and reliable clamping.

[0020] 3. The addition of reinforcing ribs enhances the structural strength of the positioning body, prevents deformation during processing, and improves the overall stability and service life of the structure.

[0021] 4. The design of the locating pin hole and the fastening screw hole further improves the stability and positioning accuracy of the connection between the locating body and the lathe spindle, ensuring smooth machining.

[0022] 5. The clamping blocks are made of alloy steel, which improves their strength and hardness and extends their service life; the rotating groove makes rotating the adjusting screw easier and more convenient to operate. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 ;

[0025] In the attached figures, the following labels are used:

[0026] Positioning body 1, connecting hole 2, positioning keyway 3, reinforcing rib 4, positioning pin hole 5, fastening screw hole 6, fastening screw 7, clamping block 8, adjusting screw 9, rotating head 10, rotating groove 11. Detailed Implementation

[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] like Figure 1-2 As shown, a special lathe mold for hydraulic caliper jaw plates includes a positioning body 1. The positioning body 1 has an overall stepped cylindrical structure and is used to achieve coaxial positioning connection with the lathe spindle. A connecting hole 2 adapted to the lathe spindle is opened at its axial center. At least one set of axially extending positioning keyways 3 are opened on the inner wall of the connecting hole 2.

[0029] A clamping assembly is connected inside the positioning keyway 3. The clamping assembly includes an adjusting screw 9 that is threaded through the positioning body 1 and inserted into the positioning keyway 3. The insertion end of the adjusting screw 9 is abutted against and connected to a clamping block 8 disposed in the positioning keyway 3. The end of the adjusting screw 9 away from the clamping block 8 is connected to a rotating head 10 disposed outside the positioning body 1.

[0030] The side wall of the positioning body 1 is connected to multiple sets of reinforcing ribs 4. The advantages of the above configuration are: multiple sets of reinforcing ribs can effectively disperse the stress borne by the positioning body, significantly enhance the overall structural strength and rigidity of the positioning body, prevent bending and deformation due to large cutting forces during high-speed operation and machining of the lathe, ensure the stability of positioning accuracy, and extend the service life of the lathe mold.

[0031] The reinforcing rib 4 and the positioning body 1 are integrally forged. The advantages of the above configuration are: the integral forging structure avoids problems such as insufficient connection strength and stress concentration that may occur when using welding or other connection methods, making the reinforcing rib and the positioning body form a solid whole, further improving the stability and reliability of the structure, while reducing assembly processes and improving production efficiency.

[0032] The inner wall of the connecting hole 2 is provided with four sets of circumferentially distributed axially extending locating keyways 3. The advantages of the above configuration are: the four sets of circumferentially distributed locating keyways can cooperate with the key on the lathe spindle from multiple directions to achieve multi-point positioning, which greatly improves the coaxiality and connection stability of the positioning body and the lathe spindle, effectively prevents relative rotation or radial offset during machining, and ensures machining accuracy.

[0033] The side of the positioning body 1 has multiple sets of evenly distributed positioning pin holes 5. The advantages of the above configuration are: the positioning pin holes can be used to insert positioning pins, which, in conjunction with other auxiliary positioning components, can perform secondary positioning or auxiliary fixing of the positioning body, further improving the positioning accuracy and the stability of the overall structure. Especially when changing different workpieces or performing complex machining operations, it can ensure that the positioning accuracy is not affected.

[0034] The positioning body 1 has multiple sets of evenly distributed fastening screw holes 6 on its end face near the lathe spindle, and fastening screws 7 are connected to the fastening screw holes 6. The advantages of the above configuration are: by tightening the fastening screws in the fastening screw holes, the positioning body and the lathe spindle can be tightly connected together from the end face direction. Combined with the positioning function of the positioning keyway, a double fixation of axial and radial directions is formed, which effectively prevents axial displacement of the two during machining and further enhances the stability of the connection.

[0035] The positioning body 1 has three sets of evenly distributed fastening screw holes 6 on one end face near the lathe spindle. The advantages of the above configuration are: the three sets of evenly distributed fastening screw holes, while ensuring the fastening effect, reduce processing costs and processing time compared to a larger number of screw holes, and also simplify the assembly operation steps, making the assembly and disassembly process more convenient and efficient. In addition, the three sets of evenly distributed structures can make the clamping force distribution more uniform, avoiding excessive local stress.

[0036] The clamping block 8 is made of alloy steel. The advantages of the above configuration are: alloy steel has high strength, high hardness and good wear resistance, which can withstand the large clamping force applied by the adjusting screw, and it is not easy to wear or deform during long-term repeated use, thus ensuring the stability and consistency of the clamping effect, extending the replacement cycle of the clamping block and reducing maintenance costs.

[0037] The rotating head 10 has an axially formed rotating groove 11 into which a lever can be inserted. The advantages of the above configuration are: the rotating groove allows the lever to be inserted, and the rotating head can be rotated with less effort using the lever principle, thereby easily adjusting the adjusting screw, making the clamping or loosening operation of the clamping block on the lathe spindle more convenient and labor-saving. Especially when a large clamping force is required, it can effectively reduce the labor intensity of the operator and improve work efficiency.

[0038] Working principle

[0039] The working principle of this hydraulic caliper jaw plate special lathe mold is as follows:

[0040] First, the lathe spindle is inserted into the connecting hole 2 at the axial center of the positioning body 1. The connecting hole 2 is adapted to the lathe spindle, thus initially achieving the connection between the positioning body 1 and the lathe spindle. The positioning keyway 3 on the inner wall of the connecting hole 2 plays an auxiliary positioning role, ensuring the coaxiality of the positioning body 1 and the lathe spindle.

[0041] Next, the lathe spindle is clamped and fixed using the clamping assembly. The operator can insert a lever into the axial rotating groove 11 of the rotating head 10 and rotate the rotating head 10, causing the adjusting screw 9 to rotate. Since the adjusting screw 9 is threaded through the positioning body 1 and inserted into the positioning keyway 3, its rotation causes it to move axially on the positioning body 1, thereby pushing the clamping block 8 located in the positioning keyway 3 towards and against the lathe spindle, thus clamping the lathe spindle. The clamping block 8 is made of alloy steel, ensuring stable and long-lasting clamping performance.

[0042] During the connection between the positioning body 1 and the lathe spindle, the positioning pin hole 5 on the side of the positioning body 1 can be used to insert a positioning pin to further improve the positioning accuracy; the fastening screw hole 6 on the end face of the positioning body 1 near the lathe spindle is connected to the fastening screw 7, which can further fasten the positioning body 1 and the lathe spindle to prevent relative displacement during processing.

[0043] Meanwhile, the multiple sets of reinforcing ribs 4 on the side wall of the positioning body 1 are integrally forged with the positioning body 1, which enhances the structural strength of the positioning body 1, avoids deformation due to excessive force during processing, and ensures the stability of processing. Example 1

[0044] Regular batch processing

[0045] In a factory specializing in the production of hydraulic calipers, standard-model hydraulic caliper jaw plates are mass-produced. First, the positioning body 1 is installed onto the lathe spindle. The connecting hole 2 mates with the lathe spindle, and four sets of circumferentially distributed positioning keyways 3 correspond to the keys on the lathe spindle for precise positioning, ensuring a very high degree of coaxiality between the positioning body 1 and the lathe spindle. Next, the fastening screw 7 is screwed into three sets of evenly distributed fastening screw holes 6 on the end face of the positioning body 1 near the lathe spindle, further securing the connection. Then, the hydraulic caliper jaw plate blank to be processed is placed in a specific positioning area of ​​the positioning body 1. A positioning pin is inserted through the positioning pin hole 5, and with the help of other auxiliary positioning components, the jaw plate blank is precisely positioned a second time. A lever is inserted into the rotating groove 11 of the rotating head 10, and rotating the rotating head 10 drives the adjusting screw 9, pushing the clamping block 8 to firmly clamp the jaw plate blank. Because the clamping block 8 is made of alloy steel, it maintains a good clamping effect even during long-term, frequent clamping operations. The multiple sets of reinforcing ribs 4 on the side wall of the positioning body 1 are forged as a single piece with the positioning body 1. They maintain structural stability and do not deform when subjected to large cutting forces during batch processing, ensuring that each toothed plate can meet the high-precision processing requirements, which greatly improves processing efficiency and product quality. Example 2

[0046] Adaptable to different lathes

[0047] A machining workshop has various types of lathes. To achieve efficient machining of hydraulic caliper jaws on different lathes, this utility model of a lathe mold is adopted. For a lathe with a smaller spindle size, the connecting hole 2 of the positioning body 1 is precisely adapted to its spindle. By adjusting the clamping assembly composed of the adjusting screw 9 and the clamping block 8, the clamping force on the spindle can be flexibly adjusted to adapt to the tolerances of different lathe spindles. When installing the positioning body 1 on the lathe, the positioning pin hole 5 on the side of the positioning body 1 is used to cooperate with the positioning pin pre-set on the lathe to achieve quick and accurate positioning and installation. To address potential vibrations during machining, the reinforcing rib 4 on the positioning body 1 effectively enhances the overall rigidity and reduces the impact of vibrations. When machining on another lathe with a higher power, the positioning body 1 is also installed through the connecting hole 2 and the positioning keyway 3. The combination of the fastening screw hole 6 and the fastening screw 7 ensures a stable connection between the positioning body 1 and the lathe spindle even under larger cutting forces, realizing universal machining of the hydraulic caliper jaws on different lathes and greatly improving the application range and flexibility of the lathe mold. Example 3

[0048] Special specification tooth plate processing

[0049] A batch of special-specification hydraulic caliper jaw plates differed in size and shape from conventional jaw plates. When machining these jaw plates, the positioning area on the positioning body 1, used for placing the jaw plate blank, was first adjusted based on the special dimensions of the jaw plates, for example, by adding specific shims. Then, the positioning body 1 was mounted on the lathe spindle, and the four sets of positioning keyways 3 ensured the high-precision positioning required when machining the special-specification jaw plates. Since the stress conditions during machining of special jaw plates may be more complex, the reinforcing ribs 4 of the one-piece forging structure played a crucial role in enhancing the strength of the positioning body 1 and preventing deformation. For clamping the special jaw plates, the rotating groove 11 of the rotating head 10, in conjunction with a lever, allowed for more precise control of the adjusting screw 9, enabling the clamping block 8 to clamp the jaw plate blank with appropriate force. Throughout the machining process, the tight fit of the fastening screw holes 6 and fastening screw 7, along with the assisted positioning of the positioning pin holes 5, ensured that the special-specification hydraulic caliper jaw plates remained stable throughout the machining process, successfully producing special jaw plates that met high-precision requirements and solving the problem of machining special-specification jaw plates.

[0050] The examples provided in this utility model are not intended to limit the implementation methods. Those skilled in the art will recognize that various variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementation methods here, and any obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A lathe mold for a hydraulic caliper jaw plate, characterized in that, The system includes a positioning body (1), which is a stepped cylindrical structure used to achieve coaxial positioning connection with the lathe spindle. A connecting hole (2) adapted to the lathe spindle is provided at its axial center. At least one set of axially extending positioning keyways (3) are provided on the inner wall of the connecting hole (2). The positioning keyway (3) is connected to a clamping assembly. The clamping assembly includes an adjusting screw (9) that is threaded through the positioning body (1) and inserted into the positioning keyway (3). The insertion end of the adjusting screw (9) is abutted against and connected to a clamping block (8) disposed in the positioning keyway (3). The end of the adjusting screw (9) away from the clamping block (8) is connected to a rotating head (10) disposed outside the positioning body (1).

2. The hydraulic caliper jaw plate special lathe mold according to claim 1, characterized in that, The side wall of the positioning body (1) is connected to multiple sets of reinforcing ribs (4).

3. A special lathe mold for hydraulic caliper jaw plates according to claim 2, characterized in that, The reinforcing rib (4) and the positioning body (1) are integrally forged structures.

4. The hydraulic caliper jaw plate special lathe mold according to claim 1, characterized in that, The inner wall of the connecting hole (2) is provided with four sets of circumferentially distributed axially extending positioning keyways (3).

5. A special lathe mold for hydraulic caliper jaw plates according to claim 1, characterized in that, The side of the positioning body (1) has multiple sets of evenly distributed positioning pin holes (5).

6. A special lathe mold for hydraulic caliper jaw plates according to claim 1, characterized in that, The positioning body (1) has multiple sets of evenly distributed fastening screw holes (6) on one end face near the lathe spindle, and fastening screws (7) are connected to the fastening screw holes (6).

7. A special lathe mold for hydraulic caliper jaw plates according to claim 1, characterized in that, The positioning body (1) has three sets of evenly distributed fastening screw holes (6) on one end face near the lathe spindle.

8. A special lathe mold for hydraulic caliper jaw plates according to claim 1, characterized in that, The clamping block (8) is made of alloy steel.

9. A special lathe mold for hydraulic caliper jaw plates according to claim 1, characterized in that, The rotating head (10) has an axially formed rotating groove (11) into which a lever can be inserted.

Images