Tool for clamping steel balls
By designing a ball clamp with a detachable arc-shaped gripping head and elastic components, the problem of small contact area in the ball clamp was solved, achieving stable gripping of steel balls and safe operation.
Patent Information
- Application Number
- CN202422597215.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-10-28
AI Technical Summary
Existing ball clamps have a small contact area when gripping steel balls, resulting in an unstable grip and limited operating space, which can easily cause the steel balls to fall and create operational risks.
A tool for gripping steel balls was designed, featuring a detachable arc-shaped gripping head and elastic components, secured by a locking mechanism. A brake disc and brake block provide additional friction to enhance gripping stability and safety.
It improves the stability and safety of holding the steel ball, reduces the risk of the steel ball falling, and lowers the intensity of operation and the cost of use.
Smart Images

Figure CN223507000U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of production tools, specifically the field of steel ball processing, and relates to a tool for gripping steel balls. Background Technology
[0002] In the production and processing of wear-resistant steel balls, the steel balls need to be heated to around 1000℃, followed by a series of processing steps such as quenching and tempering. Although the production and processing of steel balls has now been automated, when a sudden equipment failure occurs, the steel balls remain inside the equipment after shutdown, requiring safe and timely removal.
[0003] When cleaning steel balls stuck in equipment, ball clamps are typically used to remove them. Commonly used ball clamps have an "X"-shaped structure, with two handles hinged at the shoulders. Operators open and close the jaws by manipulating the handles to grip the steel ball. Due to the spherical shape of the steel ball, the contact area between the jaws and the ball is small, making it easy for the ball to be loosely held. Furthermore, the limited space in the equipment restricts the operating space, causing the steel ball to easily fall. Falling steel balls can cause impact damage, affecting production quality. Additionally, the high temperature of the steel ball can easily cause burns or scalds to operators, posing a certain risk of injury. Utility Model Content
[0004] This invention addresses the technical problem of insufficient contact area between ball clamps and steel balls, leading to unstable clamping and potential usage risks. A tool for gripping steel balls is provided. The detachable clamping head on the jaws can be replaced according to the gears of the steel ball to ensure sufficient clamping area and secure gripping. Simultaneously, the elastic component and the locking position of the brake disc provide auxiliary force for the handle's clamping operation, reducing stress and ensuring both flexibility and safety in use.
[0005] The technical solution adopted by this utility model is as follows: a tool for gripping steel balls is provided, including ball clamps. The ends of the jaws of the ball clamps are detachably equipped with arc-shaped gripping heads. Elastic members are provided between the handles of the ball clamps, and the elastic members are fixedly connected to the handles respectively. An arc-shaped brake disc is provided on one handle of the ball clamps, and an operating port is provided on the other handle. The brake disc passes through the operating port and moves along the operating port. A brake block is slidably installed up and down inside the operating port. The brake block protrudes from the top or bottom surface of the handle, and a brake pad is provided on the brake block. The brake pad contacts the brake disc.
[0006] The clamping head is selected according to the size of the steel ball to be clamped and is installed on the jaws of the ball clamping pliers. Then, the clamping head is operated by the handle of the ball clamping pliers to clamp the steel ball. The arc-shaped structure of the clamping head is in close contact with the surface of the steel ball, increasing the contact area and ensuring a firm clamping. At the same time, the elastic component on the handle provides a pulling force to the handle, thereby providing an auxiliary force for closing the jaws and clamping head, reducing the operator's operating intensity. Meanwhile, the brake disc on one handle moves along the operating port on the other handle. After the clamping head clamps the steel ball, the handle moves to the correct position. The operator presses the brake pad to make the brake pad abut against the brake disc, thereby constraining the position of the handle, further reducing the operator's force and operating intensity, making it flexible and efficient to use.
[0007] To further optimize this technical solution, each clamping head is provided with a slot, which is inserted into the jaws, and the clamping head is locked to the jaws by means of a locking component.
[0008] The clamping head can be quickly inserted into the jaws via a slot, making it easy to operate and flexible to use.
[0009] To further optimize this technical solution, the locking component includes through holes of matching number and position on both the jaws and the clamping head. Locking bolts are inserted into the through holes, and locking nuts are threaded onto each locking bolt.
[0010] After the clamping head is inserted into the jaws, the through hole on the clamping head coincides with the through hole on the jaws so that the locking bolt can be inserted into the through hole. After threading the locking nut, the clamping head is fixed on the jaws, ensuring strength, safety and reliability in use.
[0011] To further optimize this technical solution, the elastic component includes a tension spring, and the two ends of the tension spring are respectively fixedly connected to the handle by means of connecting parts.
[0012] The elastic component used for pulling the handle is a tension spring, which has a simple structure, stable use, and low cost.
[0013] To further optimize this technical solution, the connector includes a connecting post fixedly mounted on the handle, and the free end of the connecting post is threaded with a limit nut.
[0014] By attaching the two ends of the tension spring to the connecting post of the handle and threading a limit nut onto the connecting post to prevent the tension spring from detaching, the system is safe and reliable to use and easy to assemble and disassemble.
[0015] To further optimize this technical solution, the top or bottom surface of the handle is provided with an assembly hole, which is connected to the operation port, and the brake block is slidably inserted into the assembly hole and can be detachably installed with the brake pad.
[0016] The mounting holes on the top or bottom surface of the handle provide an installation position for the brake pads. The brake pads slide along the mounting holes to facilitate contact between the brake pads. The structure is simple and the operation is stable.
[0017] To further optimize this technical solution, the brake pad is a rubber sheet with its edge protruding from the side wall of the brake block and bonded to it.
[0018] The rubber pad is inexpensive to use and provides reliable friction to lock the brake disc in place after contact, ensuring stable operation. The edge of the rubber pad protrudes from the side wall of the brake pad, preventing the brake pad from falling out of the mounting hole and ensuring safety.
[0019] To further optimize this technical solution, the rubber sheet is provided with a slot, and the brake block is inserted into the slot.
[0020] The rubber sheet can be connected and bonded to the brake block through the slot, making the operation simple.
[0021] The beneficial effects of this utility model are as follows:
[0022] 1. The detachable arc-shaped clamping head on the jaws of the ball clamping pliers can be replaced according to the size of the steel ball, allowing the clamping head to better contact and fit the surface of the steel ball, so as to provide more clamping area for clamping the steel ball, ensuring the stability and firmness of clamping. The clamping head is tightened and fixed by locking bolts and locking nuts, making the disassembly and replacement of the clamping head simpler and ensuring the reliability of use.
[0023] 2. After the operating handle closes the jaws and the clamping head clamps the steel ball, pressing the brake block makes the brake pads contact the brake disc. This increases the contact friction and constrains the position of the handle, thus preventing the clamping head from loosening and ensuring the clamping quality of the steel ball. At the same time, it reduces the force required by the operator to use the handle. In addition, the tension spring pulls on the handle, providing auxiliary force for clamping the steel ball, making the clamping of the steel ball more effortless.
[0024] 3. The mounting holes on the handle provide mounting space for the brake pads. The brake pads bonded to the brake pads are made of rubber, which has low operating costs and can provide good friction after contacting the brake disc, ensuring the position of the handle is constrained. At the same time, the edge of the rubber pad protrudes from the brake pad, which can prevent the brake pad from falling out of the mounting holes and ensure reliable use. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the steel ball clamping tool in this embodiment;
[0026] Figure 2 This is a schematic diagram of the structure of the steel ball clamping tool in this embodiment;
[0027] Figure 3 This is a schematic diagram of the handle structure of the ball clamp in this embodiment;
[0028] Figure 4 This is a schematic diagram of the brake block and ball clamp in this embodiment;
[0029] Figure 5 This is a schematic diagram of the disassembled structure of the brake block and the ball clamp in this embodiment;
[0030] Figure 6 This is a schematic diagram of the disassembled structure of the brake block and brake pad in this embodiment.
[0031] In the diagram, 1 is the ball clamp; 101 is the operating port; 102 is the assembly hole; 2 is the clamping head; 201 is the slot; 3 is the brake disc; 4 is the brake block; 401 is the brake pad; 4011 is the slot; 5 is the through hole; 6 is the locking bolt; 7 is the locking nut; 8 is the tension spring; 9 is the connecting post; and 901 is the limit nut. Detailed Implementation
[0032] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0033] Please see the appendix Figure 1 Appendix Figure 2 A tool for gripping steel balls includes a ball clamp 1. The handles of the ball clamp 1 are crossed and hinged at the shoulder position using pins or the like. The operator controls the opening and closing of the jaws through the handles of the ball clamp 1. The jaws are fitted with arc-shaped gripping heads 2 of appropriate specifications according to the size of the steel ball to be gripped. When the ball clamp 1 grips the steel ball using the arc-shaped gripping heads 2, the arc-shaped structure of the gripping heads 2 contacts the outer surface of the steel ball, increasing the gripping area and improving the gripping stability and firmness.
[0034] Please see the appendix Figure 1-3 When the clamping head 2 is assembled with the jaws, the clamping head 2 has a slot 201. The clamping head 2 is inserted into the jaws through the slot 201 and locked in place by a locking component to ensure reliable use. The locking component is a matching locking bolt 6 and a locking nut 7. Both the jaws and the clamping head 2 have through holes 5 in a matching number and position. After the locking bolt 6 is inserted into the through hole 5, the locking nut 7 is threadedly connected to the locking bolt 6, thereby tightening and fixing the clamping head 2 onto the jaws. Its structure is simple and it is firm and reliable in use.
[0035] Please see the appendix Figure 1 Appendix Figure 4After the jaws clamp the steel ball, an elastic component is provided between the handles of the ball clamping pliers 1. The elastic component can be a tension spring 8. Both ends of the tension spring 8 are fixedly connected to the handles. The tension spring 8 provides auxiliary force for the jaws to clamp the steel ball, reducing the amount of force required by the operator. When the tension spring 8 is fixedly connected to the handle, a connecting post 9 is provided on the handle to provide an anchor point for the tension spring 8. After both ends of the tension spring 8 are respectively fitted onto the connecting post 9, the free ends of the connecting post 9 are threaded with a limit nut 901. The limit nut 901 prevents the tension spring 8 from falling off the connecting post 9, ensuring reliability and facilitating disassembly and assembly of the tension spring 8, making it flexible to use.
[0036] Please see the appendix Figure 1-3 When the handle of the ball clamp 1 is operated to open and close the jaws, an arc-shaped brake disc 3 is fixedly installed on one of the handles of the ball clamp 1, while an operating port 101 is opened on the other handle. The brake disc 3 passes through the operating port 101 and moves along the operating port 101 as the handle is opened and closed. A brake block 4 is slidably installed inside the operating port 101. The brake block 4 protrudes from the top or bottom surface of the handle. By pressing the brake block 4, the brake pad 401 on the brake block 4 comes into contact with the brake disc 3, thereby keeping the handle in position and further reducing the operating intensity of clamping the steel ball.
[0037] Please see the appendix Figure 4-6 The top or bottom surface of the handle is provided with an assembly hole 102, which is connected to the operation port 101. The assembly hole 102 provides an assembly position for the installation of the brake block 4. The brake block 4 is slidably inserted into the assembly port, and a brake pad 401 is mounted on the brake block 4. The brake disc 3 is locked by the brake pad 401. The brake pad 401 can be made of rubber, which is inexpensive and readily available, reducing the cost of use. By opening a groove 4011 on the rubber, the groove 4011 is inserted into the brake block 4 and bonded to it, ensuring the reliability of use. The outer edge of the brake pad 401 protrudes from the side wall of the brake block 4, which can prevent the brake block 4 from falling out of the assembly hole 102, ensuring the reliability of use.
[0038] The working principle of this steel ball clamping tool is as follows: Based on the size of the steel ball to be clamped, a suitable clamping head 2 is selected and inserted into the jaws of the ball clamping pliers 1. The through holes 5 on the clamping head 2 and 5 on the jaws are aligned. Locking bolts 6 are then inserted into the through holes 5, and locking nuts 7 are tightened to fix the clamping head 2 onto the jaws. A tension spring 8 installed on the handle of the ball clamping pliers 1 pulls the handle, keeping the jaws and clamping head 2 closed. When clamping the steel ball, the operating handle separates the clamping head 2, further pulling the tension spring 8. Simultaneously, the handle moves the brake pad 401 along the operating port 101. After the clamping head 2 is separated, it is placed around the steel ball. Then, the handle is operated to close the clamping head 2, making it contact and adhere to the outer surface of the steel ball. The arc-shaped clamping head 2 increases the contact area with the steel ball, thereby increasing the clamping force area and ensuring a firm clamping grip. As the operator applies pressure to the handle, the closing force of the clamping head 2 increases, thereby increasing the clamping force on the steel ball and ensuring its secure clamping. The tension spring 8 on the handle provides some clamping assistance, reducing the operator's effort. After the clamping head 2 has stabilized the steel ball, the operator presses the brake block 4, increasing the contact friction between the brake pad 401 and the brake disc 3. This constrains the handle's position, further distributing the operator's clamping effort, reducing the force required, and ensuring flexibility of use.
Claims
1. A tool for gripping steel balls, comprising ball-gripping pliers (1), characterized in that: The ball clamp (1) has detachable arc-shaped clamping heads (2) at the ends of its jaws. Elastic components are provided between the handles of the ball clamp (1), and the elastic components are fixedly connected to the handles respectively. An arc-shaped brake disc (3) is provided on one handle of the ball clamp (1), and an operating port (101) is provided on the other handle. The brake disc (3) passes through the operating port (101) and moves along the operating port (101). A brake block (4) is slidably installed in the operating port (101). The brake block (4) protrudes from the top or bottom surface of the handle, and a brake pad (401) is provided on the brake block (4). The brake pad (401) contacts the brake disc (3).
2. The tool for gripping steel balls according to claim 1, characterized in that: Each clamping head (2) has a slot (201) which is inserted into the jaws. The clamping head (2) is locked to the jaws by means of a locking member.
3. The tool for gripping steel balls according to claim 2, characterized in that: The locking components include through holes (5) with matching numbers and positions on the jaws and clamping heads (2). Locking bolts (6) are inserted into the through holes (5), and locking nuts (7) are threaded onto the locking bolts (6).
4. The tool for gripping steel balls according to claim 1, characterized in that: The elastic component includes a tension spring (8), and the two ends of the tension spring (8) are fixedly connected to the handle by means of connectors.
5. The tool for gripping steel balls according to claim 4, characterized in that: The connector includes a connecting post (9) fixedly mounted on the handle, and the free ends of the connecting post (9) are threaded with limit nuts (901).
6. The tool for gripping steel balls according to claim 1, characterized in that: The top or bottom surface of the handle is provided with an assembly hole (102), which is connected to the operation port (101). The brake block (4) is slidably inserted into the assembly hole (102) and is detachably installed with the brake pad (401).
7. A tool for gripping steel balls according to claim 6, characterized in that: The brake pad (401) is a rubber sheet with its edge protruding from the side wall of the brake block (4) and bonded to the brake block (4).
8. A tool for gripping steel balls according to claim 7, characterized in that: The rubber sheet is provided with a slot (4011), and the brake block (4) is inserted into the slot (4011).