Metal target clamp with clamping protection structure

Abstract

The metal target material clamp with the clamping protection structure comprises a base, a clamping assembly and a second pressing plate, the clamping assembly comprises a fixing cylinder, a screw rod, a first pressing plate and a rotary knob, and the center of the top of the base is concave downwards to form a containing cavity. Compared with the prior art, the device has the following beneficial effects that the clamping blocks, the screw rods, the first pressing plates, the first protection layers and the rotary knobs are arranged, the first protection layers and the clamping blocks are made of rubber, the rotary knobs are rotated to push the first pressing plates to move downwards, the bottoms of the four first protection layers are pressed against the upper surface of the target, the four protection layers play a role in protecting the target together, and the target is protected; and a second pressing plate and a second protection layer are arranged, the second pressing plate is pushed by four sets of electric push rods to move upwards, the top of the second protection layer makes contact with the bottom of the target material and extrudes the bottom of the target material, therefore, gaps are prevented from existing below the target material, the target material is prevented from being bent and deformed, and the second protection layer can protect the bottom of the target material and prevent the bottom of the target material from being scratched.

Description

Technical Field

[0001] The utility model belongs to the technical field of fixture devices, and particularly relates to a metal target fixture with a clamping protection structure. Background Art

[0002] A metal target fixture is a mechanical device designed specifically for clamping and fixing metal targets, and is widely used in fields such as material processing, surface treatment, and physical experiments. Its main function is to stabilize the position of the target during processing or experiments, ensuring that the target does not displace when force is applied or under external influence. Although metal target fixtures perform well in many applications, there are still drawbacks. First, the fixture needs to contact the surface of the target during the clamping process, so it is very easy to scratch the surface of the target, which may lead to a decrease in the quality of the target or even direct scrapping. The conventional countermeasure is to add a protective coating, such as polytetrafluoroethylene (PTFE) or other low-friction materials, to the contact surface of the fixture. These coatings can not only reduce friction, but also improve wear resistance and reduce damage to the target surface. Although this method can solve the problem of the target surface being scratched by the fixture during clamping, it also has disadvantages. After long-term use, the coating is prone to peeling off from the contact surface of the fixture, resulting in the direct exposure of the contact surface of the fixture, thus losing the anti-scratching effect. Therefore, it is hoped to propose a new structure to solve the above problems. Summary of the Utility Model

[0003] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a metal target fixture with a clamping protection structure.

[0004] The utility model is realized through the following technical solutions: A metal target fixture with a clamping protection structure, comprising: a base, a clamping assembly, and a second pressing plate. The clamping assembly includes a fixed cylinder, a screw, a first pressing plate, and a knob. A receiving cavity is formed in a concave shape downward at the center of the top of the base;

[0005] A second pressing plate is provided above the interior of the receiving cavity. A second protective layer is adhesively bonded to the top of the second pressing plate. A set of fixed cylinders are respectively provided at the four corners of the top of the base. A screw is installed inside each set of fixed cylinders. A first pressing plate is sleeved on the outside of each set of screws;

[0006] A first protective layer is adhesively bonded to the bottom of the first pressing plate. An adjustment hole is formed through the top of the first pressing plate. External threads are provided on the outside of the screw. A knob is provided at the top of the screw. Internal threads matching the specifications of the external threads are provided inside the knob. Four groups of clamping blocks are equidistantly installed on the outside of the top of the second pressing plate.

[0007] As a preferred embodiment, four sets of electric push rods are installed at the four corners of the inner bottom of the accommodation cavity. The four sets of electric push rods are synchronous mechanisms. The top of the electric push rod is fixedly bonded to the bottom of the second pressing plate. The radius length of the second pressing plate matches the radius length of the accommodation cavity.

[0008] As a preferred embodiment, the bottom of the screw rod is fixedly connected to the inside of the fixed cylinder by a threaded connection. The radius length of the screw rod matches the inner circle radius length of the knob.

[0009] As a preferred embodiment, the radius length of the screw rod matches the width of the adjustment hole. Both the side close to the center and the side far from the center of the adjustment hole are semi-circular structures. The first pressing plate can be freely pulled to move the screw rod along the adjustment hole, so that the position of the first pressing plate on the top of the target can be changed, so as to adjust to the most suitable pressing position.

[0010] As a preferred embodiment, the width of the adjustment hole is smaller than the radius length of the outer circle of the knob. The outer side of the knob is provided with anti-slip lines. The anti-slip lines on the outer side of the knob increase the friction between the finger and the knob, so it is more convenient to rotate the knob.

[0011] As a preferred embodiment, the clamping block is in an L-shaped structure. The bottom sides of the four sets of clamping blocks all face the center of the circle. The four sets of clamping blocks and the four sets of fixed cylinders are spaced apart. The radius length of the circular area surrounded by the four sets of clamping blocks is 5 cm. The radius length of the circular area surrounded by the four sets of clamping blocks matches the radius length of the metal target. The material of the clamping block is rubber. The four sets of clamping blocks initially clamp the target. At the same time, the rubber material prevents the target from being scratched. On the other hand, the radius length of the circular area surrounded by the four sets of clamping blocks is 5 cm. Therefore, the target with a radius length in the range of 5.1 cm to 5.3 cm can be clamped inside the four sets of clamping blocks.

[0012] As a preferred embodiment, the length and width of the first protective layer are the same as the length and width of the first pressing plate. The radius length of the second protective layer is the same as the radius length of the second pressing plate. The total thickness of the second pressing plate and the second protective layer is less than the depth of the accommodation cavity. Both the first protective layer and the second protective layer are made of rubber. The first protective layer presses down on the upper surface of the target, and uses the characteristics of the rubber material to increase the friction with the upper surface of the target to prevent clamping slippage. On the other hand, the soft and elastic characteristics of the rubber material are used to prevent the upper surface of the target from being scratched. Similarly, the second protective layer plays a role in clamping the bottom of the target and prevents the bottom of the target from being scratched.

[0013] After adopting the above technical solution, the beneficial effects of the utility model are as follows: By setting the clamping blocks, screw rods, pressing plates I, protective layers I and knobs, the materials of the protective layer I and the clamping blocks are both rubber. Place the target material inside the four groups of clamping blocks, and initially clamp the target material between the four groups of clamping blocks by using the elasticity of the rubber. Then, move the four groups of pressing plates I downward along the screw rods respectively, so that the bottom of the protective layer I at the bottom of the pressing plate I contacts the top of the target material. Rotate the four groups of knobs, the knobs move downward and the bottom of the knobs presses against the top of the pressing plate I, so that the bottom of the four groups of protective layers I is pressed against the upper surface of the target material, preventing the target material from moving. At the same time, the four groups of protective layers I play a role in protecting the target material and preventing the target material from being scratched. By setting the pressing plate II and the protective layer II, the pressing plate II moves upward under the push of the four groups of electric push rods, and the top of the protective layer II contacts and presses against the bottom of the target material, so as to prevent there being a gap under the target material, making the clamping of the target material more stable, preventing the target material from bending and deforming, and at the same time, the protective layer II can protect the bottom of the target material and prevent the bottom of the target material from being scratched. Brief Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without making creative efforts, other drawings can also be obtained according to these drawings.

[0015] Figure 1 It is a schematic diagram of a metal target clamp with a clamping and protection structure of the present utility model.

[0016] Figure 2 It is a schematic diagram of the fixed cylinder and the protective layer II in a metal target clamp with a clamping and protection structure of the present utility model.

[0017] Figure 3 It is a schematic diagram of the internal structure of the accommodation cavity in a metal target clamp with a clamping and protection structure of the present utility model.

[0018] Figure 4 It is a schematic diagram of the structure of the clamping assembly in a metal target clamp with a clamping and protection structure of the present utility model.

[0019] Figure 5 It is a schematic diagram of the structure of the knob in a metal target clamp with a clamping and protection structure of the present utility model.

[0020] In the figure, 100 - base, 110 - accommodation cavity, 111 - electric push rod;

[0021] 200 - clamping assembly, 210 - fixed cylinder, 220 - screw rod, 230 - pressing plate I, 231 - adjustment hole, 232 - protective layer I, 240 - knob;

[0022] 300 - Second pressing plate, 310 - Second protective layer;

[0023] 400 - Clamping block. Detailed implementation manner

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0025] Please refer to Figures 1 to 5 : A metal target fixture with a clamping and protection structure, including: a base 100, a clamping assembly 200, and a second pressing plate 300. The clamping assembly 200 includes a fixed cylinder 210, a screw 220, a first pressing plate 230, and a knob 240. A receiving cavity 110 is formed by recessing downward at the center of the top of the base 100;

[0026] Above the inner part of the receiving cavity 110, there is a second pressing plate 300. A second protective layer 310 is adhesively bonded to the top of the second pressing plate 300. A set of fixed cylinders 210 are respectively provided at the four corners of the top of the base 100. Each set of fixed cylinders 210 internally installs a screw 220. A first pressing plate 230 is sleeved on the outer side of each set of screws 220;

[0027] A first protective layer 232 is adhesively bonded to the bottom of the first pressing plate 230. An adjustment hole 231 is formed through the top of the first pressing plate 230. The outer side of the screw 220 is provided with an external thread, and the top of the screw 220 is provided with a knob 240. An internal thread matching the specification of the external thread is opened on the inner side of the knob 240. Four groups of clamping blocks 400 are equidistantly installed on the outer side of the top of the second pressing plate 300.

[0028] Four groups of electric push rods 111 are installed at the four corners of the inner bottom of the receiving cavity 110. The four groups of electric push rods 111 are a synchronous mechanism. The top of the electric push rod 111 is adhesively bonded and fixed to the bottom of the second pressing plate 300. The radius length of the second pressing plate 300 matches the radius length of the receiving cavity 110.

[0029] The bottom of the screw 220 is connected and fixed to the inside of the fixed cylinder 210 by a threaded connection method. The radius length of the screw 220 matches the inner circle radius length of the knob 240.

[0030] The radius length of the screw 220 matches the width of the adjustment hole 231. Both the side of the adjustment hole 231 close to the center of the circle and the side away from the center of the circle are semi-circular structures. The pressing plate one 230 can be freely pulled to move the screw 220 along the adjustment hole 231, so that the position of the pressing plate one 230 on the top of the target can be changed, in order to adjust to the most suitable pressing position.

[0031] The width of the adjustment hole 231 is smaller than the radius length of the outer circle of the knob 240. Anti-slip lines are provided on the outer side of the knob 240. The anti-slip lines on the outer side of the knob 240 increase the friction between the finger and the knob 240, so it is more convenient to rotate the knob 240.

[0032] The clamping block 400 has an L-shaped structure. The bottom edges of the four groups of clamping blocks 400 all face the center of the circle. The four groups of clamping blocks 400 and the four groups of fixed cylinders 210 are arranged at intervals. The radius length of the circular area surrounded by the four groups of clamping blocks 400 is 5 cm. The radius length of the circular area surrounded by the four groups of clamping blocks 400 matches the radius length of the metal target. The material of the clamping block 400 is rubber. The four groups of clamping blocks 400 initially clamp the target. At the same time, the rubber material prevents the target from being scratched. On the other hand, the radius length of the circular area surrounded by the four groups of clamping blocks 400 is 5 cm. Therefore, the target with a radius length in the range of 5.1 cm to 5.3 cm can be clamped inside the four groups of clamping blocks 400.

[0033] The length and width of the protective layer one 232 are the same as the length and width of the pressing plate one 230. The radius length of the protective layer two 310 is the same as the radius length of the pressing plate two 300. The total thickness of the pressing plate two 300 and the protective layer two 310 is less than the depth of the accommodation cavity 110. Both the protective layer one 232 and the protective layer two 310 are made of rubber. The protective layer one 232 presses down on the upper surface of the target, and uses the characteristics of the rubber material to increase the friction with the upper surface of the target to prevent clamping slippage. On the other hand, use the characteristics of the rubber material being soft and elastic to prevent the upper surface of the target from being scratched. Similarly, the protective layer two 310 plays a role in clamping the bottom of the target and prevents the bottom of the target from being scratched.

[0034] Example 1: Please refer to Figure 1 、 Figure 4 and Figure 5, during actual use, first place the target in the interior of the four groups of clamping blocks 400. Utilize the characteristics of the rubber material of the clamping blocks 400 to initially clamp the target. At this time, the target is not fixed. Then, adjust the four groups of first pressing plates 230 respectively. Move the first pressing plates 230 downward along the outer side of the screw rods 220 to make the first pressing plates 230 gradually approach the target. When visually observing that the first pressing plates 230 are about to approach the target, pull the first pressing plates 230 towards the center of the base 100, so that one end of the outer side of the screw rod 220 away from the center of the base 100 abuts against the adjusting hole 231. The adjusting hole 231 can adjust the pressing position of the first pressing plate 230 above the target. Then continue to move the first pressing plates 230 downward until the bottom of the first protective layer 232 at the bottom of the first pressing plates 230 contacts the top of the target. Then rotate the four groups of knobs 240 respectively to thread-connect the knobs 240 with the screw rods 220, so that the knobs 240 rotate and move downward until the bottom of the knobs 240 tightly presses against the top of the first pressing plates 230, thereby pressing the bottom of the four groups of first protective layers 232 against the top of the target, and then pressing the target tightly in the interior of the four groups of clamping blocks 400. The four groups of first protective layers 232 are made of rubber material, so they can prevent the target from being scratched on the top, and at the same time can fix the target in the interior of the four groups of clamping blocks 400 to prevent the target from moving.

[0035] Embodiment 2: Please refer to Figure 1 , Figure 2 and Figure 3 , after the four groups of first pressing plates 230 fix the target in the interior of the four groups of clamping blocks 400, at this time, the four groups of electric push rods 111 can be started. The electric push rods 111 push the second pressing plates 300 upward, so that the second pressing plates 300 move upward in the accommodating cavity 110, and the top of the second protective layer 310 at the top of the second pressing plates 300 contacts the bottom of the target. The second protective layer 310 is made of rubber material. Therefore, by using the soft and elastic surface of the rubber material to contact the bottom of the target, on the one hand, the target can be pushed upward and cooperate with the four groups of first protective layers 232 to firmly fix the target in the interior of the four groups of clamping blocks 400, preventing the surface of the target from being bent and deformed due to the downward impact force during processing. On the other hand, the clamping blocks 400 are also made of rubber material, so the target can be protected to prevent the target from being scratched when being clamped and pressed.

[0036] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A metal target fixture with a clamping protection structure, comprising: A base (100), a clamping assembly (200) and a second pressing plate (300), the clamping assembly (200) includes a fixed cylinder (210), a screw rod (220), a first pressing plate (230) and a knob (240), characterized in that: a receiving cavity (110) is formed by downward concavity at the center of the top of the base (100); Above the interior of the receiving cavity (110) is provided with a second pressing plate (300), a second protective layer (310) is adhesively bonded to the top of the second pressing plate (300), and a set of fixed cylinders (210) are respectively provided at the four corners of the top of the base (100), and a screw rod (220) is installed inside each set of fixed cylinders (210), and a first pressing plate (230) is sleeved on the outside of each screw rod (220); A first protective layer (232) is adhesively bonded to the bottom of the first pressing plate (230), an adjustment hole (231) is formed through the top of the first pressing plate (230), an external thread is provided on the outside of the screw rod (220), a knob (240) is provided at the top of the screw rod (220), and an internal thread matching the specification of the external thread is provided inside the knob (240), and four sets of clamping blocks (400) are equidistantly installed on the outside of the top of the second pressing plate (300).

2. The metal target clamp with a clamping protection structure according to claim 1, characterized in that: Four sets of electric push rods (111) are installed at the four corners of the inner bottom of the receiving cavity (110), the four electric push rods (111) are a synchronous mechanism, and the top of the electric push rod (111) is adhesively bonded and fixed to the bottom of the second pressing plate (300), and the radius length of the second pressing plate (300) matches the radius length of the receiving cavity (110).

3. The metal target fixture with a clamping protection structure according to claim 1, characterized in that: The bottom of the screw rod (220) is fixedly connected to the inside of the fixed cylinder (210) by a threaded connection, and the radius length of the screw rod (220) matches the inner circle radius length of the knob (240).

4. The metal target fixture with a clamping protection structure according to claim 3, wherein: The radius length of the screw rod (220) matches the width of the adjustment hole (231), and both the side close to the center and the side far from the center of the adjustment hole (231) are semicircular structures.

5. The metal target fixture with a clamping protection structure according to claim 4, characterized in that: The width of the adjustment hole (231) is smaller than the outer circle radius length of the knob (240), and anti-slip patterns are provided on the outside of the knob (240).

6. The metal target fixture with a clamping protection structure according to claim 1, characterized in that: The clamping block (400) has an L-shaped structure, the bottom sides of the four clamping blocks (400) all face the center, the four clamping blocks (400) and the four fixed cylinders (210) are spaced apart, and the radius length of the circular area surrounded by the four clamping blocks (400) is 5 cm, and the radius length of the circular area surrounded by the four clamping blocks (400) matches the radius length of the metal target.

7. A metal target fixture with a clamping protection structure as described in claim 1, characterized in that: The length and width of the first protective layer (232) are the same as the length and width of the first pressing plate (230), the radius length of the second protective layer (310) is the same as the radius length of the second pressing plate (300), and the total thickness of the second pressing plate (300) and the second protective layer (310) is smaller than the depth of the receiving cavity (110).

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