Engineering machinery spring rolling clamp
By introducing a buffer layer and an electric push rod structure into the spring coiling fixture for engineering machinery, the problem of damage to the clamping plate during bending is solved, thus protecting the clamping plate, extending its service life, and improving the efficiency and accuracy of the fixture.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-03-31
AI Technical Summary
Existing spring coil clamps for construction machinery are prone to damage when clamping round steel bars, especially during bending, where excessive heat and pressure can damage the elastic pads, affecting the service life of the clamps.
A clamping device is designed, comprising a clamping body, an upper clamping plate, a lower clamping plate, and a buffer layer. The buffer layer is composed of sponge and rubber materials and is combined with an electric push rod and a screw structure. The buffer layer absorbs heat and pressure, protects the lower clamping plate, and achieves precise clamping through the electric push rod.
It effectively protects the lower clamping plate, improves its service life, ensures clamping accuracy and spring winding efficiency, and extends the overall service life of the fixture.
Smart Images

Figure CN224058605U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spring production technology, specifically to a spring coiling fixture for engineering machinery. Background Technology
[0002] A utility model patent with patent number CN202321821574.6 describes a "Spring Coiling Fixture for Engineering Machinery," comprising a fixing component and a fixture. The fixing component includes a fixing plate, a limiting rod, and an elastic element. A limiting block is provided on one side of the fixture. The limiting block is slidably inserted into the interior of the fixing plate, and the rod of the limiting rod is slidably inserted into the interior of the limiting block. In use, when disassembling the fixture, the limiting rod is pulled away from the limiting block, allowing it to be pulled out from inside the limiting block. This separates the limiting block from the fixing plate, thus completing the disassembly of the fixture and facilitating its replacement. The ease of disassembly and replacement is achieved by simply pulling the limiting rod.
[0003] However, in actual use, the clamping plate of the above-mentioned utility model is easily damaged when clamping the round steel. In the prior art, elastic pads are usually set on the clamping plate, but because the force is large when the round steel is bent, the elastic pads will also be damaged. In fact, because the heat is high when bending, the elastic pads will stick to the surface of the clamping plate.
[0004] Therefore, an engineering machinery spring coiling fixture is proposed to solve the problems mentioned above. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides an engineering machinery spring coiling clamp that can protect and cool the lower clamping plate when bending round steel, making the lower clamping plate less prone to damage during long-term use and improving its service life.
[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a clamp body, a fixing plate fixedly connected to the right end of the clamp body, an electric push rod mounted on the upper end of the fixing plate, an upper clamping plate fixedly connected to the power output end of the electric push rod, and a lower buffer plate fixedly connected to the right end of the clamp body below the upper clamping plate. The lower buffer plate includes a lower clamping plate fixedly connected to the clamp body, an outer protective frame sleeved on the outer end of the lower clamping plate, two mutually symmetrical buffer layers between the outer protective frame and the lower clamping plate, a threaded hole drilled at the bottom end of the outer protective frame, and a screw threadedly connected to the threaded hole. The upper end of the screw contacts and abuts against the lower clamping plate, which can protect the lower clamping plate and cool it down when the round steel is bent, making the lower clamping plate less prone to damage during long-term use and improving its service life.
[0007] Preferably, the buffer layer includes a first buffer layer and a second buffer layer. The first buffer layer is located outside the second buffer layer and is bonded to the inner wall of the outer protective frame. By setting the first buffer layer to be bonded to the inner wall of the outer protective frame, it is convenient for technicians to replace and maintain the first buffer layer regularly, thereby improving the buffering effect of the buffer layer.
[0008] Preferably, the inner wall of the second buffer layer is fixedly connected with a plurality of evenly distributed hemispherical bladders, and the outer end of the lower clamping plate is chiseled with a plurality of evenly distributed spherical grooves. The spherical grooves match the hemispherical bladders. By setting the spherical grooves and hemispherical bladders, the contact between the buffer layer and the lower clamping plate can be made more sufficient, thereby providing better protection for the lower clamping plate.
[0009] Preferably, the first buffer layer is made of sponge material and the second buffer layer is made of rubber material, which can improve the buffering effect of the buffer layer. In actual use, the first buffer layer can be soaked in water before use, which can effectively absorb the heat generated when the round steel is bent.
[0010] Preferably, a pad is provided inside the hemispherical bladder, and a spring is fixedly connected between the pad and the inner wall of the second buffer layer. By setting the pad and the spring, the hemispherical bladder can be in full contact with the spherical groove, thereby ensuring full contact between the buffer layer and the lower clamping plate.
[0011] Preferably, the spring is made of stainless steel and the surface of the spring is coated with anti-rust paint. By using stainless steel to make the spring, it is less prone to corrosion during long-term use, thereby improving the service life of the spring.
[0012] Preferably, a manual knob is fixedly connected to the bottom end of the screw. The surface of the manual knob is engraved with anti-slip texture. By setting a manual knob, technicians can easily rotate the screw directly. By setting an anti-slip texture, the possibility of slippage when technicians rotate the screw can be reduced.
[0013] Compared with the prior art, this utility model provides a spring coiling clamp for engineering machinery, which has the following beneficial effects:
[0014] 1. This rolling fixture, through the design of the lower buffer plate and its internal buffer layer, significantly improves the fixture's ability to withstand the pressure and heat generated during the bending of round steel. The buffer layer consists of two layers of materials. The first buffer layer is made of sponge material, which has good water absorption and buffering properties and can effectively absorb the heat and impact generated during the bending of round steel. The second buffer layer is made of rubber material, which further enhances the buffering effect and durability.
[0015] 2. This rolling fixture, through the spherical groove designed at the outer end of the lower clamping plate, perfectly matches the hemispherical bladder in the buffer cladding. This design not only enhances the contact area and tightness between the buffer cladding and the lower clamping plate, but also effectively disperses the pressure generated when the round steel is bent through the elastic deformation of the hemispherical bladder, further protecting the lower clamping plate from damage.
[0016] 3. This coiling fixture uses an electric push rod as a power source to precisely control the lifting and lowering of the upper clamping plate, achieving rapid and stable clamping of round steel. This design not only improves the efficiency of spring coiling but also ensures the accuracy of clamping, thereby guaranteeing the quality of the spring.
[0017] 4. The rolling fixture is tightly bonded to the inner wall of the outer protective frame through the first buffer layer by adhesive bonding. This design facilitates the regular replacement and maintenance of the first buffer layer by technicians, ensuring the continuous effectiveness of the buffering effect and extending the service life of the entire fixture.
[0018] 5. This rolling fixture is used after being soaked in water through the first buffer layer. This allows the water absorbed by the round steel to be squeezed out during bending by the deformation of the first buffer layer, thereby cooling the bent round steel. At the same time, it can also cover the surface of the lower clamping plate to prevent the temperature of the lower clamping plate from getting too high. Attached Figure Description
[0019] Figure 1 This is a perspective view of the entire utility model;
[0020] Figure 2 This is a perspective view of the lower buffer plate portion of this utility model;
[0021] Figure 3This is a perspective view of the buffer cladding portion of this utility model;
[0022] Figure 4 This is a perspective view of the lower clamping plate portion of this utility model;
[0023] Figure 5 This is a cross-sectional view of the hemispherical sac portion of this utility model.
[0024] In the diagram: 1. Fixture body; 2. Fixing plate; 3. Upper clamping plate; 4. Electric push rod; 5. Lower buffer plate; 6. Lower clamping plate; 601. Spherical groove; 7. Outer protective frame; 8. Buffer layer; 801. First buffer layer; 802. Second buffer layer; 803. Hemispherical bladder; 804. Pad; 805. Spring; 9. Threaded hole; 10. Screw; 1001. Manual knob. Detailed Implementation
[0025] 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.
[0026] Example:
[0027] Please see Figure 1 - Figure 2 This embodiment of a spring coiling fixture for engineering machinery includes a fixture body 1. A fixing plate 2 is fixedly connected to the right end of the fixture body 1. An electric push rod 4 is installed on the upper end of the fixing plate 2. An upper clamping plate 3 is fixedly connected to the power output end of the electric push rod 4. A lower buffer plate 5 located below the upper clamping plate 3 is fixedly connected to the right end of the fixture body 1. The lower buffer plate 5 includes a lower clamping plate 6 fixedly connected to the fixture body 1. An outer protective frame 7 is sleeved on the outer end of the lower clamping plate 6. Two mutually symmetrical buffer layers 8 are provided between the outer protective frame 7 and the lower clamping plate 6. A threaded hole 9 is drilled at the bottom end of the outer protective frame 7. A screw 10 is internally threaded into the threaded hole 9. The upper end of the screw 10 is in contact with and abuts against the lower clamping plate 6.
[0028] The right end of the clamp body 1 is also designed with a lower buffer plate 5 located below the upper clamping plate 3. This component not only provides support for the other side of the round steel, but more importantly, it enhances the protection and durability of the clamp through a specific structural design. The lower buffer plate 5 is specifically composed of a lower clamping plate 6 that is directly fixed to the clamp body 1, and the periphery of the lower clamping plate 6 is wrapped by a carefully designed outer protective frame 7. Two mutually symmetrical buffer layers 8 are embedded between the two. These buffer layers 8 play a key role in buffering and protecting the round steel when it is clamped and bent.
[0029] The buffer layer 8 consists of a first buffer layer 801 and a second buffer layer 802. The first buffer layer 801 is located on the outside and is tightly bonded to the inner wall of the outer protective frame 7. This design not only facilitates the regular replacement and maintenance of the first buffer layer 801 by technicians, ensuring the continuous effectiveness of the buffering effect, but also extends the service life of the entire fixture through the replaceability of the first buffer layer 801. At the same time, the first buffer layer 801 is made of sponge material, which has good water absorption and buffering properties, while the second buffer layer 802 is made of rubber material, which further enhances the buffering effect and durability.
[0030] Please see Figure 3 - Figure 4 The buffer layer 8 includes a first buffer layer 801 and a second buffer layer 802. The first buffer layer 801 is located outside the second buffer layer 802 and is bonded to the inner wall of the outer protective frame 7. By bonding the first buffer layer 801 to the inner wall of the outer protective frame 7, technicians can easily replace and maintain the first buffer layer 801 regularly, thereby improving the buffering effect of the buffer layer 8. The inner wall of the second buffer layer 802 is fixedly connected with multiple evenly distributed hemispherical bladders 803. The outer end of the lower clamping plate 6 is chiseled with multiple evenly distributed spherical grooves 601. The spherical grooves 601 and hemispherical bladders 803 match each other. By setting the spherical grooves 601 and hemispherical bladders 803, the contact between the buffer layer 8 and the lower clamping plate 6 can be more sufficient, thereby providing better protection for the lower clamping plate 6.
[0031] The lower clamping plate 6 has multiple evenly distributed spherical grooves 601 at its outer end, which perfectly match the hemispherical bladder 803 fixed to the inner wall of the second buffer layer 802 in the buffer cladding layer 8. This design not only enhances the contact area and tightness between the buffer cladding layer 8 and the lower clamping plate 6, but also effectively disperses the pressure generated when the round steel is bent through the elastic deformation of the hemispherical bladder 803, further protecting the lower clamping plate 6 from damage.
[0032] Please see Figure 2 - Figure 5The first buffer layer 801 is made of sponge material, and the second buffer layer 802 is made of rubber material. This improves the cushioning effect of the buffer layer 8. In actual use, the first buffer layer 801 can be soaked in water before use to effectively absorb the heat generated when the round steel is bent. A pad 804 is provided inside the hemispherical bladder 803. A spring 805 is fixedly connected between the pad 804 and the inner wall of the second buffer layer 802. By setting the pad 804 and the spring 805, the hemispherical bladder 803 can fully contact the spherical groove 601, thereby ensuring that the buffer layer 8 and the... The lower clamping plates 6 are in full contact. The spring 805 is made of stainless steel and has anti-rust paint on its surface. By using stainless steel to make the spring 805, it is not easy for the spring 805 to rust during long-term use, thereby improving the service life of the spring 805. The bottom end of the screw 10 is fixedly connected to a manual knob 1001. The surface of the manual knob 1001 is engraved with anti-slip texture. By setting the manual knob 1001, technicians can easily rotate the screw 10 directly. By setting the anti-slip texture, the possibility of slippage when technicians rotate the screw 10 can be reduced.
[0033] The working principle of the above embodiments is as follows:
[0034] During use, the electric push rod 4 is activated to push the upper clamping plate 3 downward, causing the upper clamping plate 3 and the lower buffer plate 5 to clamp the round steel. When making the spring, the pressure of the round steel bending on the lower buffer plate 5 can cause the buffer layer 8 set between the lower clamping plate 6 and the outer protective frame 7 to deform, thus making the lower clamping plate 6 less prone to damage. Secondly, the deformation of the first buffer layer 801 can squeeze out the water absorbed inside, thereby cooling the bent round steel and covering the surface of the lower clamping plate 6, preventing the temperature of the lower clamping plate 6 from becoming too high. Alternatively, before manufacturing, the screw 10 can be rotated into the threaded hole 9 to reduce the distance between the outer protective frame 7 and the lower clamping plate 6, allowing water to cover the lower clamping plate 6 in advance. This can protect the lower clamping plate 6 and cool it down when the round steel bends, making the lower clamping plate 6 less prone to damage during long-term use and improving its service life.
[0035] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. Any method that can achieve its beneficial effect can be implemented. In addition, the electrical components in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Those skilled in the art can control the electrical components through simple programming. Moreover, the existing disclosed power connection technology is also common knowledge in the field. Therefore, the specific structural composition and working principle will not be described in detail in this embodiment.
[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0037] 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 spring coiling jig for construction machines, comprising a jig body (1), characterized in that: The right end of the clamp body (1) is fixedly connected with a fixed plate (2), the upper end of the fixed plate (2) is provided with an electric push rod (4), the power output end of the electric push rod (4) is fixedly connected with an upper clamping plate (3), the right end of the clamp body (1) is fixedly connected with a lower buffer plate (5) below the upper clamping plate (3), the lower buffer plate (5) comprises a lower clamping plate (6) fixedly connected with the clamp body (1), an outer protection frame (7) is sleeved on the outer end of the lower clamping plate (6), two mutually symmetrical buffer cladding layers (8) are arranged between the outer protection frame (7) and the lower clamping plate (6), a threaded hole (9) is opened in the bottom end of the outer protection frame (7), a screw rod (10) is screwedly connected in the threaded hole (9), and the upper end of the screw rod (10) is in contact with and abuts against the lower clamping plate (6).
2. A spring coiling fixture for construction machines according to claim 1, characterized in that: The buffer cladding layer (8) comprises a first buffer layer (801) and a second buffer layer (802), the first buffer layer (801) is located outside the second buffer layer (802), and the first buffer layer (801) is bonded between the inner wall of the outer protection frame (7).
3. A spring coiling fixture for construction machines according to claim 2, characterized in that: The inner wall of the second buffer layer (802) is fixedly connected with a plurality of uniformly distributed half-sphere capsules (803), a plurality of uniformly distributed spherical grooves (601) are opened in the outer end of the lower clamping plate (6), and the spherical grooves (601) and the half-sphere capsules (803) are matched with each other.
4. A spring coiling fixture for construction machines according to claim 2, characterized in that: The first buffer layer (801) is made of sponge material, and the second buffer layer (802) is made of rubber material.
5. A spring coiling fixture for construction machines according to claim 3, characterized in that: The half-sphere capsule (803) is provided with a pad (804) therein, and the spring (805) is fixedly connected between the pad (804) and the inner wall of the second buffer layer (802).
6. A spring coiling fixture for construction machines according to claim 5, characterized in that: The spring (805) is made of stainless steel material, and the surface of the spring (805) is provided with rust-proof paint.
7. A spring coiling fixture for construction machines according to claim 1, characterized in that: The bottom end of the screw rod (10) is fixedly connected with a manual knob (1001), and the surface of the manual knob (1001) is engraved with anti-skid lines.
Citation Information
Patent Citations
Engineering machinery spring rolling clamp
CN220426648U