C-shaped clamp

Abstract

The C-shaped clamp comprises a clamping assembly and a clamping fixing base used for installing the clamping assembly, the clamping assembly comprises a C-shaped clamping head, a clamping plate and a connecting rod, the C-shaped clamping head is provided with a top plate and a bottom plate, the clamping plate is arranged in a C-shaped opening of the C-shaped clamping head in a lifting mode, and the connecting rod is connected with the clamping plate. One end of the connecting rod is fixedly connected with the clamping plate and forms a clamping space between the clamping plate and the C-shaped chuck bottom plate, the connecting rod is sleeved with a compression spring, and the two ends of the compression spring abut against the opposite end faces of the clamping plate and the C-shaped chuck top plate respectively. According to the structure, the clamping plate is driven to clamp a workpiece through elastic reset of the compression spring, and the clamping stability and the locking precision are guaranteed; the guide actuator drives the connecting rod, so that the locking precision is further improved; and the problems that the service life of the connecting rod is short due to manual operation, the labor intensity of workers is high, and potential safety hazards are caused in the manual operation process are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding auxiliary tooling, in particular to a C-shaped clamp. Background Art

[0002] The C-shaped clamp belongs to a commonly used tool for clamping and fixing tools during the welding of radiators. Its function is to make the components of the radiator fit tightly after soldering. During high-temperature welding, the relative positions of each component are controlled to prevent the heat pipes of the radiator from bulging. After the solder paste melts, the radiator components are welded without false soldering, so that the produced radiators are qualified products.

[0003] In the prior art, the C-shaped clamp used requires manual use of an electric screwdriver for locking. In order to control the locking position of the C-shaped clamp and prevent the screwdriver bit from rotating when using the electric screwdriver, a certain force needs to be used to hold the electric screwdriver and keep it stable; factors such as force control and hand stability during manual operation will affect the locking accuracy; in a large number of welding operations, more time and manpower are required; the physical strength requirements for operators are relatively high. Due to the high labor intensity, it is easy to cause operator fatigue, affecting work efficiency and welding quality; there are safety hazards in manually operating the electric screwdriver; and in the long-term use, the iron column at the head of the connecting rod will wear and the electric screwdriver will slip, resulting in unusability. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides a C-shaped clamp.

[0005] The technical solution of the utility model is: it includes a clamping assembly and a clamping fixing seat for installing the clamping assembly. The clamping assembly includes a C-shaped chuck, a clamping plate and a connecting rod. The C-shaped chuck has a top plate and a bottom plate. The clamping plate is arranged in the C-shaped opening of the C-shaped chuck in a liftable manner. One end of the connecting rod is fixedly connected to the clamping plate to form a clamping space between the clamping plate and the bottom plate of the C-shaped chuck. A compression spring is sleeved outside the connecting rod, and both ends of the compression spring respectively abut against the opposite end faces of the clamping plate and the top plate of the C-shaped chuck.

[0006] A further technical solution of it is: step holes are provided on the opposite end faces of the clamping plate and the top plate, and both ends of the compression spring respectively abut against the steps of the step holes.

[0007] A further technical solution of it is: a profiling groove is provided on the inner side of the clamping fixing seat, and the C-shaped chuck is arranged in the profiling groove.

[0008] A further technical solution of it is: a through hole coaxial with the connecting rod is provided on the top plate of the C-shaped chuck, and the connecting rod passes through and is slidably connected to the through hole.

[0009] A further technical solution thereof is that: a pulling part is provided at one end of the connecting rod away from the clamping plate, and a guiding actuator is provided above the pulling part. The guiding actuator cooperates with the pulling part through clamping jaws to drive the connecting rod to move upward.

[0010] A further technical solution thereof is that: the guiding actuator is fixedly arranged on the clamping and fixing seat through a mounting plate, and includes a piston rod penetrating along the height direction of the guiding actuator and guiding rods on both sides of the piston rod. A connecting plate is provided on one side of the guiding actuator opposite to the pulling part, and the piston rod and two groups of guiding rods are connected through the connecting plate.

[0011] A further technical solution thereof is that: there are two groups of clamping jaws, which are oppositely arranged on both sides of the lower end of the connecting plate. The opposite end faces of the two groups of clamping jaws are provided with pulling platforms that cooperate with the pulling part.

[0012] A further technical solution thereof is that: an external thread is provided at one end of the connecting rod away from the clamping plate, and the pulling part is formed by connecting with this external thread through a gasket-nut assembly.

[0013] A further technical solution thereof is that: a triangular bracket is provided on the side of the mounting plate opposite to the guiding actuator, and the two right-angle sides of the triangular bracket are respectively fixedly connected to the mounting plate and the upper end face of the clamping and fixing seat.

[0014] The beneficial technical effects of the present utility model are: the elastic reset of the compression spring drives the clamping plate to clamp the workpiece, ensuring the stability of clamping and the accuracy of locking; the guiding actuator drives the connecting rod, so that the lifting movement of the connecting rod is more precisely guided, preventing lateral displacement and further improving the accuracy of locking; it also avoids problems such as short service life of the connecting rod caused by manual operation, high manual labor intensity, and potential safety hazards caused by the manual operation process. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the clamping assembly of the present utility model;

[0017] Figure 3 is a schematic diagram of the installation of the guiding actuator of the present utility model;

[0018] Wherein: 1. Clamping and fixing seat; 2. C-shaped chuck; 3. Clamping plate; 4. Connecting rod; 5. Compression spring; 6. Guiding actuator; 61. Piston rod; 62. Guiding rod; 63. Connecting plate; 7. Mounting plate; 8. Clamping jaw; 81. Pulling platform; 9. Triangular bracket. Detailed Embodiments

[0019] In order to more clearly understand the technical means of the present utility model and be able to implement it in accordance with the content of the specification, the following further describes in detail the specific implementation manners of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model but not to limit the scope of the present utility model.

[0020] As Figures 1 to 2 shown, a C-type fixture of the present utility model includes a clamping assembly and a clamping fixing seat 1 for installing the clamping assembly. The clamping assembly includes a C-type chuck 2, a clamping plate 3, and a connecting rod 4. An imitation groove is provided inside the clamping fixing seat 1, and the C-type chuck 2 is arranged in the imitation groove to facilitate the limitation of the clamping plate 3 and prevent it from rotating; the clamping plate 3 is arranged in the C-shaped opening of the C-type chuck 2 in a liftable manner. One end of the connecting rod 4 is fixedly connected to the clamping plate 3. Specifically, one end of the connecting rod 4 is connected and installed at the central position of the clamping plate 3 through the bolt head. There is a through hole coaxial with the connecting rod 4 on the top plate of the C-type chuck 2, and the other end of the connecting rod 4 passes through and is slidably connected to the through hole.

[0021] Further, a pulling part for pulling the connecting rod 4 upward is provided at the end of the connecting rod 4 away from the clamping plate 3.

[0022] A compression spring 5 is sleeved outside the connecting rod 4, and both ends of the compression spring 5 respectively abut against the opposite end faces of the clamping plate 3 and the top plate of the C-type chuck 2.

[0023] Further, stepped holes are provided on the opposite end faces of the clamping plate 3 and the top plate, and both ends of the compression spring 5 respectively abut against the steps of the stepped holes.

[0024] When the connecting rod 4 is pulled upward through the pulling part, the connecting rod 4 overcomes the elastic force of the compression spring 5 and drives the clamping plate 3 to move upward. At this time, the workpiece to be processed is placed between the clamping plate 3 and the bottom plate of the C-type chuck 2. When the pulling force of the pulling part is slowly released, the connecting rod 4 resets under the action of the elastic force of the compression spring 5, and synchronously drives the clamping plate 3 to move towards the bottom plate of the C-type chuck 2 to clamp the workpiece to be processed.

[0025] Further, as Figure 3 shown, a guiding actuator 6 is provided above the pulling part. The guiding actuator 6 is fixedly arranged on the clamping fixing seat 1 through a mounting plate 7. The front surface of the guiding actuator 6 is a quadrilateral main body block, including a piston rod 61 penetrating along the height direction of the guiding actuator 6 and guiding rods 62 located on both sides of the piston rod 61. The piston rod 61 and the two groups of guiding rods 62 are arranged along the length direction of the guiding actuator 6. A connecting plate 63 is provided on the side of the guiding actuator 6 opposite to the pulling part. The piston rod 61 drives the guiding rods 62 to reciprocate along the height direction and drives the connecting plate 63 to move up and down.

[0026] On both sides of the lower end of the connecting plate 63, two groups of clamping jaws 8 are relatively arranged. Pulling platforms 81 are arranged on the opposite end faces of the two groups of clamping jaws 8. The pulling platforms 81 are matched with the pulling parts, and the reciprocating movement of the connecting rod 4 is driven by the lifting movement of the pulling platforms 81.

[0027] Specifically, an external thread is provided at one end of the connecting rod 4 away from the clamping plate 3, and the pulling part is formed by connecting with this external thread through a gasket-nut assembly. The gasket-nut assembly is placed on the pulling platform 81.

[0028] Since the guiding actuator 6 has high resistance to torque and lateral force, by driving the connecting rod 4 through the guiding actuator 6, the lifting movement of the connecting rod 4 is more precisely guided.

[0029] Further, a triangular bracket 9 is provided on the side of the mounting plate 7 opposite to the guiding actuator 6. The two right-angle sides of the triangular bracket 9 are respectively fixedly connected to the mounting plate 7 and the upper end face of the clamping and fixing seat 1 to strengthen the supporting force of the mounting plate 7 on the guiding actuator 6.

[0030] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. It should be pointed out that for those of ordinary skill in the art of this technology, without departing from the technical principle of the present invention, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A C-type fixture, comprising a clamping component and a clamping fixing seat (1) for mounting the clamping component. The clamping component includes a C-type chuck (2), a clamping plate (3) and a connecting rod (4). The C-type chuck (2) has a top plate and a bottom plate. The clamping plate (3) is arranged in the C-type opening of the C-type chuck (2) in a liftable manner. One end of the connecting rod (4) is fixedly connected to the clamping plate (3) to form a clamping space between the clamping plate (3) and the bottom plate of the C-type chuck (2). It is characterized in that: A compression spring (5) is sleeved outside the connecting rod (4), and two ends of the compression spring (5) respectively abut against opposite end faces of the clamping plate (3) and the top plate of the C-shaped chuck (2).

2. The C-type fixture according to claim 1, characterized in that: Step holes are provided on opposite end faces of the clamping plate (3) and the top plate, and two ends of the compression spring (5) respectively abut against steps of the step holes.

3. The C-type fixture according to claim 1, characterized in that: A profiling groove is provided inside the clamping and fixing seat (1), and the C-shaped chuck (2) is arranged in the profiling groove.

4. A C-type fixture according to claim 1, wherein: A through hole coaxial with the connecting rod (4) is provided on the top plate of the C-shaped chuck (2), and the connecting rod (4) passes through and is slidably connected to the through hole.

5. A C-type fixture according to claim 1, characterized in that: One end of the connecting rod (4) away from the clamping plate (3) is provided with a pulling part, and a guiding actuator (6) is arranged above the pulling part. The guiding actuator (6) cooperates with the pulling part through a clamping jaw (8) to drive the connecting rod (4) to move upward.

6. The C-type clamp according to claim 5, characterized in that: The guiding actuator (6) is fixedly arranged on the clamping and fixing seat (1) through a mounting plate (7), and includes a piston rod (61) penetrating along the height direction of the guiding actuator (6) and guiding rods (62) located on both sides of the piston rod (61). A connecting plate (63) is arranged on one side of the guiding actuator (6) opposite to the pulling part, and the piston rod (61) and two groups of guiding rods (62) are connected through the connecting plate (63).

7. A C-type fixture according to claim 6, wherein: There are two groups of clamping jaws (8), and the two groups of clamping jaws are oppositely arranged on both sides of the lower end of the connecting plate (63). Pulling platforms (81) cooperating with the pulling part are provided on opposite end faces of the two groups of clamping jaws (8).

8. A C-type fixture according to claim 5, characterized in that: One end of the connecting rod (4) away from the clamping plate (3) is provided with an external thread, and the pulling part is formed by connecting with the external thread through a gasket-nut assembly.

9. A C-type fixture according to claim 6, characterized in that: A triangular bracket (9) is arranged on the side of the mounting plate (7) opposite to the guiding actuator (6), and two right-angle sides of the triangular bracket (9) are respectively fixedly connected to the mounting plate (7) and the upper end face of the clamping and fixing seat (1).

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