Friction self-locking type tungsten-molybdenum clamping and positioning device

Abstract

The utility model relates to the related technical field of tungsten and molybdenum, in particular to a friction self-locking type tungsten and molybdenum clamping and positioning device which comprises a supporting table, and a clamping and positioning device is arranged on the surface of a supporting plate. According to the friction self-locking type tungsten-molybdenum clamping and positioning device, due to the arrangement of the clamping and positioning device, a tungsten-molybdenum material to be machined is placed on the clamping table and adjusted roughly, the driving motor is started to drive the lead screw to rotate, the lead screw is in threaded fit with the clamping block, the clamping block is arranged on the auxiliary rod in a sleeving mode, and therefore the clamping block moves in the axial direction to drive the clamping arm to act; when the clamping arm is close to a material, the positioning structure in the fixing block plays a role, the positioning head makes contact with the surface of the material, the material is possibly uneven or has position deviation, the positioning head is stressed, the telescopic rod slides in the telescopic pipe and compresses the telescopic spring, the telescopic rod is attached to the material in a self-adaptive mode, and accurate positioning is guaranteed; the positioning head is finely adjusted according to actual materials, clamping is completed, the positioning head is embedded into the positioning hole of the fixing rod to achieve friction self-locking, and loosening is prevented.

Description

Technical Field

[0001] This utility model relates to the field of tungsten and molybdenum technology, and in particular to a friction self-locking tungsten and molybdenum clamping and positioning device. Background Technology

[0002] Tungsten and molybdenum are two important metallic elements. Tungsten-molybdenum materials are widely used in high-end fields such as aerospace, electronics, and energy due to their high melting point, high strength, high hardness, and low coefficient of expansion. However, these characteristics also make the processing and handling of tungsten-molybdenum materials quite difficult. Therefore, a friction self-locking tungsten-molybdenum clamping and positioning device is particularly needed.

[0003] However, traditional tungsten and molybdenum clamping and positioning devices are difficult to achieve high-precision positioning when processing tungsten and molybdenum materials due to the high process requirements. This leads to processing errors and affects product quality. At the same time, they cannot accurately control the clamping force according to the characteristics of tungsten and molybdenum materials and processing requirements. This may result in the material being deformed due to excessive clamping or displaced during processing due to excessive clamping. Utility Model Content

[0004] The purpose of this invention is to provide a friction self-locking tungsten-molybdenum clamping and positioning device, which has a positioning and locking function during the clamping process of tungsten-molybdenum, and solves the problem of insufficient clamping function of traditional clamping and positioning devices when processing tungsten-molybdenum materials.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a friction self-locking tungsten-molybdenum clamping and positioning device, comprising a support platform, a foot pad installed at the bottom of the support platform, a support plate fixedly connected to one side above the support platform, a clamping platform installed above the support platform, and a clamping and positioning device provided on the surface of the support plate;

[0006] The clamping and positioning device includes a base, a fixed rod, a positioning groove, a drive motor, a lead screw, an auxiliary rod, a clamping block, a clamping arm, a fixed block, a telescopic tube, a telescopic rod, a telescopic spring, a positioning head, and a positioning hole. A base is fixedly connected to one side of the support plate. A fixed rod is fixedly connected to the surface of the base. A positioning groove is formed on the surface of the fixed rod. A drive motor is fixedly connected to the outer end of the fixed rod. A lead screw is fixedly connected to the output end of the drive motor. An auxiliary rod is fixedly connected inside the positioning groove. A clamping block is slidably connected to the surfaces of both the lead screw and the auxiliary rod. A clamping arm is fixedly connected to the outer end of the clamping block. A fixed block is fixedly connected above the clamping arm. A telescopic tube is fixedly connected to the inner end of the fixed block. A telescopic rod is slidably connected inside the telescopic tube. A telescopic spring is wound around the outer side of the telescopic rod. A positioning head is fixedly connected to one end of both the telescopic rod and the telescopic spring. A positioning hole is formed on the surface of the fixed rod.

[0007] Preferably, multiple sets of foot pads are provided on the bottom surface of the support platform, and are symmetrically arranged at the four corners of the support platform with respect to the central axis of the support platform.

[0008] Preferably, the lead screw and the drive motor cooperate to form a rotating structure, and the clamping block slides inside the positioning groove via the lead screw and the auxiliary rod.

[0009] Preferably, two identical sets of auxiliary rods are provided in the positioning groove, and are symmetrically arranged on both sides of the lead screw with respect to the transverse central axis of the positioning groove. The outer wall size of the clamping block matches the inner wall size of the positioning groove.

[0010] Preferably, two sets of lead screws are symmetrically arranged around the longitudinal central axis of the positioning groove, and two sets of clamping blocks and clamping arms are arranged in the same manner, and are slidably connected to the surfaces of the two sets of lead screws respectively.

[0011] Preferably, the telescopic rod drives the positioning head to slide inside the telescopic tube via a telescopic spring, and the outer wall dimension of the telescopic rod matches the inner wall dimension of the telescopic tube.

[0012] Preferably, the position of the positioning head corresponds to the position of the positioning hole, and the outer wall size of the positioning head matches the inner wall size of the positioning hole. Multiple sets of positioning holes are evenly spaced on the surface of the fixing rod.

[0013] Compared with the prior art, this utility model provides a friction self-locking tungsten-molybdenum clamping and positioning device, which has the following beneficial effects: By setting up the clamping and positioning device, the operator first places the tungsten-molybdenum material to be processed on the clamping table and adjusts its approximate position. Then, the drive motor is started, which drives the lead screw to rotate. Because the lead screw is threadedly engaged with the clamping block, and the clamping block is sleeved on the auxiliary rod, the clamping block moves axially, driving the clamping arm to move. When the clamping arm approaches the material, the positioning structure inside the fixed block plays its role, and the positioning head contacts the surface of the material. Because the material may be uneven or have positional deviations, the positioning head is subjected to force, and the telescopic rod slides in the telescopic tube and compresses the telescopic spring, so that it adaptively conforms to the material, ensuring accurate positioning. The clamping arm continues to move to clamp the material, and the positioning head is finely adjusted according to the actual material. After clamping is completed, the positioning head is embedded in the positioning hole of the fixed rod to achieve friction self-locking and prevent loosening. After processing is completed, the drive motor reverses, the clamping arm is released, and the positioning head is dislodged, completing one cycle. Attached Figure Description

[0014] Figure 1 This is a side view of the structure of the present utility model;

[0015] Figure 2 This is a schematic diagram of the right side view of the appearance of this utility model;

[0016] Figure 3 This is a schematic diagram of the clamping and positioning device of this utility model;

[0017] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 1. Support platform; 2. Foot pad; 3. Support plate; 4. Clamping platform; 5. Clamping and positioning device; 501. Base; 502. Fixing rod; 503. Positioning groove; 504. Drive motor; 505. Lead screw; 506. Auxiliary rod; 507. Clamping block; 508. Clamping arm; 509. Fixing block; 510. Telescopic tube; 511. Telescopic rod; 512. Telescopic spring; 513. Positioning head; 514. Positioning hole. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-4 This utility model provides a technical solution: a friction self-locking tungsten molybdenum clamping and positioning device, including a support platform 1, a foot pad 2 installed at the bottom of the support platform 1, a support plate 3 fixedly connected to one side of the upper part of the support platform 1, a clamping platform 4 installed above the support platform 1, and a clamping and positioning device 5 provided on the surface of the support plate 3.

[0021] The clamping and positioning device 5 includes a base 501, a fixed rod 502, a positioning groove 503, a drive motor 504, a lead screw 505, an auxiliary rod 506, a clamping block 507, a clamping arm 508, a fixed block 509, a telescopic tube 510, a telescopic rod 511, a telescopic spring 512, a positioning head 513, and a positioning hole 514. The base 501 is fixedly connected to one side of the support plate 3. The fixed rod 502 is fixedly connected to the surface of the base 501. The positioning groove 503 is formed on the surface of the fixed rod 502. The drive motor 504 is fixedly connected to the outer end of the fixed rod 502. The lead screw 505 is fixedly connected to the output end of the drive motor 504. The auxiliary rod 506 is fixedly connected inside the positioning groove 503. The surfaces of the lead screw 505 and the auxiliary rod 506 are slidably connected. A clamping block 507 is provided, and a clamping arm 508 is fixedly connected to the outer end of the clamping block 507. A fixing block 509 is fixedly connected above the clamping arm 508. A telescopic tube 510 is fixedly connected to the inner end of the fixing block 509. A telescopic rod 511 is slidably connected inside the telescopic tube 510. A telescopic spring 512 is wound around the outside of the telescopic rod 511. A positioning head 513 is fixedly connected to one end of both the telescopic rod 511 and the telescopic spring 512. A positioning hole 514 is opened on the surface of the fixing rod 502. With the setting of the clamping and positioning device 5, firstly, the operator places the tungsten-molybdenum material to be processed on the clamping table 4, adjusts the approximate position, and then starts the drive motor 504. The output end of the drive motor 504 drives the lead screw 505 to start rotating. Because the lead screw 505 and The clamping block 507 is threaded and also sleeved on the auxiliary rod 506. The auxiliary rod 506 restricts the rotation of the clamping block 507, allowing it to move only along the axial direction of the lead screw 505 and the auxiliary rod 506. As the lead screw 505 continues to rotate, the two clamping blocks 507 move towards or away from each other, causing the clamping arm 508, which is fixedly connected to it, to move synchronously. When the clamping arm 508 approaches the tungsten-molybdenum material, the positioning structure in the fixing block 509 on the clamping arm 508 begins to function. As the clamping arm 508 moves further closer to the material, the positioning head 513 first contacts the surface of the tungsten-molybdenum material. At the moment of contact, due to the possible unevenness or positional deviation of the material surface, the positioning head 513 will be subjected to... Lateral force is applied, causing the telescopic rod 511 to slide within the telescopic tube 510, simultaneously compressing the telescopic spring 512 wound around its outer side. The elastic force of the telescopic spring 512 allows the positioning head 513 to adaptively conform to the material surface, compensating for the effects of unevenness or positional deviation of the material surface, ensuring positioning accuracy. As the clamping arm 508 continues to move until the tungsten-molybdenum material is tightly clamped, the positioning head 513 continuously fine-tunes its position under the action of the telescopic spring 512 according to the actual shape and position of the material, ensuring positioning accuracy. After clamping is completed, the positioning head 513 is aligned with the positioning hole 514 opened on the surface of the fixing rod 502. Under the elastic force of the telescopic spring 512, the positioning head 513 is embedded in the positioning hole 514.The friction self-locking function not only prevents the clamping arm from loosening due to external forces or vibrations during clamping, but also further improves the stability and reliability of positioning tungsten-molybdenum materials. This provides a stable and precise clamping and positioning foundation for subsequent processing operations. When processing is complete and clamping needs to be released, the drive motor 504 reverses, causing the lead screw 505 to rotate in the opposite direction. The clamping arm 508 then releases, and the positioning head 513 disengages from the positioning hole 514, completing one clamping and positioning cycle.

[0022] Furthermore, multiple sets of foot pads 2 are provided on the bottom surface of the support platform 1, and are symmetrically arranged at the four corners of the support platform 1 around the central axis of the support platform 1. The foot pads 2 greatly enhance the stability of the entire device. During the clamping, positioning and subsequent processing of tungsten and molybdenum materials, vibrations of varying degrees will occur. The multiple sets of symmetrically distributed foot pads 2 can effectively disperse the vibration energy and absorb the vibration through their own elastic deformation, avoiding the vibration from affecting the precision components inside the device and ensuring the accuracy of clamping and positioning. At the same time, even if the ground on which the device is placed is uneven, the foot pads 2 can also adaptively adjust to keep the support platform 1 level, preventing deviations in the clamping and positioning of tungsten and molybdenum materials due to device tilting, and providing a stable foundation support for the entire processing.

[0023] Furthermore, the lead screw 505 and the drive motor 504 cooperate to form a rotating structure. The clamping block 507 slides inside the positioning groove 503 via the lead screw 505 and the auxiliary rod 506. Through the arrangement of the drive motor 504 and the lead screw 505, precise and stable movement control of the clamping block 507 is achieved. The drive motor 504, as a power source, can accurately regulate the speed and direction of rotation. Its output rotational motion is precisely converted into the rotation of the lead screw 505. The threaded engagement between the lead screw 505 and the clamping block 507 allows the clamping block 507 to move along the axial direction of the lead screw 505 when the lead screw 505 rotates. The auxiliary rod 506 restricts the rotation of the clamping block 507, ensuring its smooth linear movement. This enables precise adjustment of the position of the clamping arm 508, ensuring accurate adjustment of the clamping distance according to different sizes of tungsten-molybdenum materials, providing a power basis for precise clamping and positioning.

[0024] Furthermore, two identical sets of auxiliary rods 506 are provided within the positioning groove 503, symmetrically arranged on both sides of the lead screw 505 about the transverse central axis of the positioning groove 503. The outer wall dimensions of the clamping block 507 match the inner wall dimensions of the positioning groove 503. Through the arrangement of the positioning groove 503, auxiliary rods 506, and clamping block 507, the stability and accuracy of the movement of the clamping block 507 are significantly improved. The two sets of symmetrically arranged auxiliary rods 506 provide reliable support and guidance for the clamping block 507, preventing the clamping block 507 from tilting or shaking due to uneven force during movement. At the same time, the size design of the clamping block 507 closely fitting the positioning groove 503 further restricts the movement trajectory of the clamping block 507, ensuring that it can only move along the direction of the positioning groove 503, thereby ensuring the accuracy of the movement of the clamping arm 508, making the clamping and positioning of tungsten molybdenum materials more reliable, and effectively reducing the positioning error caused by the movement deviation of the clamping block 507.

[0025] Furthermore, two sets of lead screws 505 are symmetrically arranged around the longitudinal central axis of the positioning groove 503. Two sets of clamping blocks 507 and clamping arms 508 are also arranged, and are slidably connected to the surfaces of the two sets of lead screws 505. Through the arrangement of lead screws 505, clamping blocks 507 and clamping arms 508, symmetrical clamping and precise positioning of tungsten-molybdenum materials are achieved. The two sets of symmetrically arranged lead screws 505 rotate synchronously under the drive of the drive motor 504, so that the clamping blocks 507 and clamping arms 508 on both sides can symmetrically and synchronously approach or move away from the tungsten-molybdenum materials. This symmetrical clamping method can ensure that the tungsten-molybdenum materials are subjected to uniform force during the clamping process, avoid material deformation or displacement due to uneven force, improve the stability and reliability of clamping and positioning of tungsten-molybdenum materials, and provide a good foundation for subsequent processing.

[0026] Furthermore, the telescopic rod 511 drives the positioning head 513 to slide inside the telescopic tube 510 via the telescopic spring 512, and the outer wall size of the telescopic rod 511 matches the inner wall size of the telescopic tube 510. Through the arrangement of the telescopic tube 510, the telescopic rod 511, the telescopic spring 512, and the positioning head 513, the positioning head 513 can adaptively and accurately position the tungsten-molybdenum material. When the clamping arm 508 approaches the tungsten-molybdenum material, the positioning head 513 first contacts the material surface. Since the material surface may be uneven or have positional deviations, the positioning head 513 will be subjected to lateral force. At this time, the telescopic rod 511 slides inside the telescopic tube 510 and compresses the telescopic spring 512. The elastic force of the telescopic spring 512 enables the positioning head 513 to adaptively conform to the material surface, compensating for the influence caused by the material surface condition and ensuring the accuracy of positioning. At the same time, the close-fitting size design ensures the stability of the telescopic rod 511 sliding inside the telescopic tube 510, providing a reliable guarantee for the accurate positioning of the positioning head 513.

[0027] Furthermore, the position of the positioning head 513 corresponds to the position of the positioning hole 514, and the outer wall size of the positioning head 513 matches the inner wall size of the positioning hole 514. Multiple sets of positioning holes 514 are evenly spaced on the surface of the fixing rod 502. Through the setting of the positioning head 513 and the positioning hole 514, the precise locking and friction self-locking function of the position of the clamping arm 508 is realized. After the clamping arm 508 completes the clamping of the tungsten molybdenum material, the positioning head 513 is embedded in the positioning hole 514 under the elastic force of the telescopic spring 512, realizing friction self-locking and preventing the clamping arm 508 from loosening due to external force vibration and other factors during the processing, thus ensuring the stability of the clamping and positioning. The multiple sets of positioning holes 514 evenly spaced can flexibly adjust the embedded position of the positioning head 513 according to the different sizes of tungsten molybdenum materials, realizing precise locking of the clamping arm 508 at different positions, improving the adaptability of the device to different specifications of materials and the accuracy of positioning.

[0028] Working principle: First, the operator places the tungsten-molybdenum material to be processed on the clamping table 4 and adjusts its approximate position. Multiple symmetrically distributed foot pads 2 effectively disperse vibration energy and absorb vibration through their elastic deformation, preventing vibration from affecting the precision components inside the device and ensuring accurate clamping and positioning. Then, the drive motor 504 is started. The output of the drive motor 504 drives the lead screw 505 to rotate. Since the lead screw 505 and the clamping block 507 are threaded together, and the clamping block 507 is fitted onto the auxiliary rod 506, the auxiliary rod 506 restricts the rotation of the clamping block 507, ensuring that the clamping block 507 can only rotate along the lead screw. The axial movement of rod 505 and auxiliary rod 506, along with the continuous rotation of lead screw 505, causes the two clamping blocks 507 to move towards or away from each other, driving the clamping arm 508 fixedly connected to it to move synchronously. When the clamping arm 508 approaches the tungsten-molybdenum material, the positioning structure in the fixed block 509 on the clamping arm 508 begins to function. As the clamping arm 508 further approaches the material, the positioning head 513 first contacts the surface of the tungsten-molybdenum material. At the moment of contact, due to the possible unevenness or positional deviation of the material surface, the positioning head 513 will be subjected to a lateral force. At this time, the telescopic rod 511 begins to slide inside the telescopic tube 510, while simultaneously compressing the outer... The side-wound telescopic spring 512 allows the positioning head 513 to adaptively conform to the material surface, compensating for the effects of unevenness or positional deviation of the material surface and ensuring positioning accuracy. As the clamping arm 508 continues to move until the tungsten-molybdenum material is tightly clamped, the positioning head 513 continuously fine-tunes its position under the action of the telescopic spring 512 according to the actual shape and position of the material, ensuring positioning accuracy. After clamping is completed, the positioning head 513 is aligned with the positioning hole 514 on the surface of the fixing rod 502. Under the elastic force of the telescopic spring 512, the positioning head 513 is embedded in the positioning hole. Within the positioning hole 514, a friction self-locking function is achieved. This not only prevents the clamping arm from loosening due to external force vibration or other factors during clamping, but also further improves the stability and reliability of positioning the tungsten and molybdenum material. It provides a solid and precise clamping and positioning foundation for subsequent processing operations. When processing is completed and the clamping needs to be released, the drive motor 504 reverses, causing the lead screw 505 to rotate in the opposite direction. The clamping arm 508 is then released, and the positioning head 513 disengages from the positioning hole 514, completing one clamping and positioning cycle. The drive motor 504 is model Y315S-2. This completes the use of a friction self-locking tungsten and molybdenum clamping and positioning device.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A friction self-locking tungsten-molybdenum clamping and positioning device, comprising a support platform (1), characterized in that: The bottom of the support platform (1) is equipped with a foot pad (2), and a support plate (3) is fixedly connected to one side of the upper part of the support platform (1). A clamping platform (4) is also installed above the support platform (1), and a clamping positioning device (5) is provided on the surface of the support plate (3). The clamping and positioning device (5) includes a base (501), a fixed rod (502), a positioning groove (503), a drive motor (504), a lead screw (505), an auxiliary rod (506), a clamping block (507), a clamping arm (508), a fixed block (509), a telescopic tube (510), a telescopic rod (511), a telescopic spring (512), a positioning head (513), and a positioning hole (514). The base (501) is fixedly connected to one side of the support plate (3). The fixed rod (502) is fixedly connected to the surface of the base (501). The fixed rod (502) has a positioning groove (503) on its surface. The drive motor (504) is fixedly connected to the outer end of the fixed rod (502). The lead screw (505) is fixedly connected to the output end of the drive motor (504). 505), an auxiliary rod (506) is fixedly connected inside the positioning groove (503), a clamping block (507) is slidably connected to the surface of the lead screw (505) and the auxiliary rod (506), a clamping arm (508) is fixedly connected to the outer end of the clamping block (507), a fixing block (509) is fixedly connected above the clamping arm (508), a telescopic tube (510) is fixedly connected to the inner end of the fixing block (509), a telescopic rod (511) is slidably connected inside the telescopic tube (510), a telescopic spring (512) is wound around the outside of the telescopic rod (511), a positioning head (513) is fixedly connected to one end of the telescopic rod (511) and the telescopic spring (512), and a positioning hole (514) is opened on the surface of the fixing rod (502).

2. The friction self-locking tungsten-molybdenum clamping and positioning device according to claim 1, characterized in that: The foot pads (2) are provided in multiple sets on the bottom surface of the support platform (1), and are symmetrically arranged at the four corners of the support platform (1) with respect to the central axis of the support platform (1).

3. The friction self-locking tungsten-molybdenum clamping and positioning device according to claim 1, characterized in that: The lead screw (505) and the drive motor (504) cooperate to form a rotating structure, and the clamping block (507) slides inside the positioning groove (503) via the lead screw (505) and the auxiliary rod (506).

4. The friction self-locking tungsten-molybdenum clamping and positioning device according to claim 1, characterized in that: The auxiliary rods (506) are provided in two identical sets in the positioning groove (503), and are symmetrically arranged on both sides of the lead screw (505) with the transverse central axis of the positioning groove (503). The outer wall size of the clamping block (507) matches the inner wall size of the positioning groove (503).

5. The friction self-locking tungsten-molybdenum clamping and positioning device according to claim 1, characterized in that: Two sets of lead screws (505) are symmetrically arranged around the longitudinal central axis of the positioning groove (503). Two sets of clamping blocks (507) and clamping arms (508) are arranged in the same manner and are slidably connected to the surfaces of the two sets of lead screws (505).

6. The friction self-locking tungsten-molybdenum clamping and positioning device according to claim 1, characterized in that: The telescopic rod (511) drives the positioning head (513) to slide inside the telescopic tube (510) through the telescopic spring (512), and the outer wall size of the telescopic rod (511) matches the inner wall size of the telescopic tube (510).

7. The friction self-locking tungsten-molybdenum clamping and positioning device according to claim 1, characterized in that: The position of the positioning head (513) corresponds to the position of the positioning hole (514), and the outer wall size of the positioning head (513) matches the inner wall size of the positioning hole (514). Multiple sets of positioning holes (514) are equally spaced on the surface of the fixing rod (502).

Images