C-shaped clamp for horizontal positioning

Abstract

The utility model relates to the field of machining, in particular to a C-shaped clamp for horizontal positioning. Comprising a C-shaped bracket, a non-slip mat, a self-adjusting pressure head, a half-thread bolt-nut, a lower swing rod, a spherical joint, a screw rod, a rotating handle and the like. The device comprises a C-shaped frame formed by splicing and welding a hollow rectangular tube and a C-shaped support, the bottom of the hollow rectangular tube of the support is bonded with an anti-skid pad, the tail end of the hollow rectangular tube of the support is connected with a self-adjusting pressure head, a lower swing rod is connected with the support through a half-thread bolt-nut, and a screw is screwed into a threaded through hole formed in the tail end of the bottom of the support and connected with a spherical joint and a rotating handle. The spherical joint is in contact with the bottom of the lower swing rod. The clamping force and the clamping direction of the C-shaped clamp can be adjusted, operation is convenient and fast, and the C-shaped clamp can be conveniently used even in the environment that the shape of a workpiece is complex and the space is limited. The problems of size deviation, workpiece scrapping and the like caused by position deviation in the machining process are effectively avoided, and the machining qualification rate is effectively increased.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of machining, specifically, relate to a C type frock clamp for work piece horizontal positioning. BACKGROUND

[0002] The frock for horizontal positioning plays an important role in many fields such as machining, assembly, measurement and maintenance, which can provide strong clamping force in the vertical direction, ensure the accurate position and processing stability of work piece in the horizontal direction. Among many horizontal positioning frocks, C type clamping positioning frock becomes an indispensable auxiliary tool in machining because of its unique design and excellent performance. Because of its simple structure, convenient operation, large clamping force, portability and strong adaptability, it plays an important role in many processing scenes such as metal processing, welding operation and assembly operation. SUMMARY

[0003] In view of the problems in the above background art, the present patent proposes a C type clamp for horizontal positioning, which can adjust the clamping force and clamping direction, is convenient to operate, can be quickly and easily operated, and allows it to be used in a small space. Even in the environment of complex work piece shape and limited space, reliable positioning and fixing can be provided to ensure the smooth progress of processing.

[0004] The technical scheme of the utility model is as follows:

[0005] A C type clamp for horizontal positioning, comprising a C type support (1), a self-adjusting pressure head (3), a half tooth bolt-nut (4), a lower swing rod (5) and a screw rod (7);

[0006] The top section of the C type support is fixedly connected with the upper top rod, the middle section of the C type support is provided with a hinge hole, and the lower swing rod is installed in the hinge hole through a first pin to realize the hinge connection with the C type support;

[0007] The bottom end of the bottom section of the C type support is threadedly connected with the screw rod, and the top end of the screw rod abuts against the bottom of the middle position of the lower swing rod.

[0008] The upper top rod and the lower swing rod are both provided with a self-adjusting pressure head at the end.

[0009] Further, the bottom end of the C type support is provided with a threaded hole, and the screw rod is threadedly matched with the threaded hole.

[0010] Further, the top end of the screw rod is provided with a spherical joint, and the bottom end is provided with a rotating handle.

[0011] Further, the two self-adjusting pressure heads are both in a U type structure, are clamped at the ends of the upper top rod and the lower swing rod respectively, and are hingedly connected at the ends through a second pin.

[0012] Further, the bottom of the upper jacking rod is provided with an anti-skid pad.

[0013] Further, the pin is a half tooth bolt, and the other end of the half tooth bolt is provided with a nut in threaded connection therewith.

[0014] Further, the central axes of the pins are parallel to each other and are perpendicular to the screw rod.

[0015] Further, the upper jacking rod is a three-section rod, including a first section, a middle section and a last section; the first section and the last section are parallel to each other, the middle section is inclined upward from the end of the first section and is connected to the end of the last section; and the anti-skid pad is located in the first section. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the overall structural diagram of the embodiment of the present application;

[0017] Figure 2 is the use scene schematic diagram of the embodiment of the present application;

[0018] Figure 3 is the working principle schematic diagram of the embodiment of the present application;

[0019] Figure 4 is the C-shaped bracket schematic diagram of the embodiment of the present application;

[0020] Figure 5 is the self-adjusting head structure schematic diagram of the embodiment of the present application;

[0021] Figure 6 is the ball joint schematic diagram of the embodiment of the present application;

[0022] In the figure: 1, C-shaped bracket, 2, anti-skid pad, 3, self-adjusting head, 4, pin, 5, lower swing rod, 6, ball joint, 7, screw rod, 8, rotating handle, 9, workpiece, 10, table top, 1-1, first section, 1-2, middle section, 1-3, last section. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0024] Referring to Figures 1 to 6 , the embodiment includes a C-shaped bracket 1, an anti-skid pad 2, a self-adjusting head 3, a pin 4, a lower swing rod 5, a ball joint 6, a screw rod 7 and a rotating handle 8.

[0025] The C-shaped frame is formed by welding a hollow rectangular tube (an upper top rod) and a C-shaped aluminum piece (a C-shaped support), and a long strip-shaped antiskid pad 2 is bonded to the bottom of the left side (the first section) of the hollow rectangular tube, so as to increase the friction between the C-shaped clamp and the fixed platform and improve the clamping stability.

[0026] A threaded hole is arranged at the bottom end of the C-shaped support 1, and a spherical joint 6, a screw rod 7 and a rotating handle 8 are arranged in the threaded hole. A through hole is arranged at the side edge of the C-shaped support 1, and the through hole is hingedly connected with a lower swing rod 5 through a pin 4. The lower swing rod 5 can freely swing relative to the support, and continuously contacts and supports the spherical joint through the bottom of the lower swing rod. The vertical supporting force of the spherical joint 6 and the screw rod 7 relative to the lower swing rod is transmitted through the rotating handle. A through hole is arranged at the end of the hollow rectangular tube of the C-shaped frame and the lower swing rod 5, and the through hole is connected with a self-adjusting pressure head 3 through the pin 4. The self-adjusting pressure head can freely rotate relative to the support.

[0027] As shown in Figure 1 the utility model discloses a C-shaped support 1, and an antiskid pad 2 is bonded to the bottom of the upper top rod. The self-adjusting pressure head 3 and the lower swing rod 5 are connected to the end and the side edge of the support through pins respectively. The screw rod 7 is screwed into the threaded hole in the right side of the support. The spherical joint 6 and the rotating handle 8 are connected to the upper and lower ends of the screw rod respectively. The spherical joint contacts the bottom of the lower swing rod to form a vertical upward positioning and clamping force.

[0028] As shown in Figure 2 when the workpiece 9 needs to be horizontally positioned, first, the left side position of the upper top rod is placed on the edge of the fixed platform. The end self-adjusting pressure head 3 of the C-shaped support 1 is adjusted to be aligned with the center part of the workpiece. The end self-adjusting pressure head 3 of the lower swing rod 5 is adjusted to be perpendicular to the fixed platform 10. The rotating handle 8 is rotated to increase the force height of the spherical joint 6. Finally, the horizontal positioning of the workpiece is realized.

[0029] As shown in Figure 3 the entire positioning and clamping system includes the gravity from the C-shaped clamp itself, the downward pressure on the end self-adjusting pressure head 3 of the lower swing rod 5, the upward supporting force and horizontal friction force at the antiskid pad 2 of the left end of the upper top rod, and the upward supporting force at the self-adjusting pressure head 3 of the right end of the upper top rod. These different directions and different sizes of forces can make the clamp, the workpiece and the fixed platform reach a relatively stable state after being combined.

[0030] The pin 4 provided in the embodiment is a half tooth bolt-nut assembly.

[0031] It should be noted that the above only describes the preferred application examples of the present application, and is not used to limit the protection scope of the present application. Any technical solution with equivalent replacement or equivalent transformation is within the protection scope of the present application.

Claims

1. A C-clamp for horizontal positioning, characterized in that, The C-shaped bracket (1), self-adjusting pressure head (3), half tooth bolt-nut (4), lower swing rod (5) and screw rod (7) are included. The top section of the C-shaped bracket is fixedly connected with the upper top rod, and the middle section of the C-shaped bracket is provided with a hinged hole. The bottom end of the bottom section of the C-shaped bracket is threadedly connected with the screw rod, and the top end of the screw rod abuts against the bottom of the middle position of the lower swing rod. The bottom end of the bottom section of the C-shaped bracket is threadedly connected with the screw rod, and the top end of the screw rod abuts against the bottom of the middle position of the lower swing rod.

2. A C-clip for horizontal positioning according to claim 1, characterized in that The bottom end of the bottom section of the C-shaped bracket is threadedly connected with the screw rod, and the top end of the screw rod abuts against the bottom of the middle position of the lower swing rod.

3. A C-clip for horizontal positioning according to claim 1, characterized in that The top end of the screw rod is provided with a spherical joint, and the bottom end is provided with a rotating handle.

4. The C-clip for horizontal positioning of claim 1, wherein, The two self-adjusting pressure heads are both U-shaped structures, and are respectively clamped at the bottom end of the upper top rod and the lower swing rod, and are hinged at the bottom end thereof through a second pin.

5. The C-clip for horizontal positioning of claim 1, wherein, The bottom of the upper top rod is provided with an antiskid pad.

6. A C-clip for horizontal positioning according to claim 1 or 4, characterized in that The pin is a half tooth bolt, and the other end of the half tooth bolt is provided with a nut threadedly connected therewith.

7. A C-clip for horizontal positioning according to claim 6, characterized in that The central axes of the pins are parallel to each other and are both perpendicular to the screw rod.

8. A C-clip for horizontal positioning according to claim 5, characterized in that The upper top rod is a three-section rod, including a first section, a middle section and a bottom section. The first section and the bottom section are parallel to each other, the middle section is inclined upward from the bottom end of the first section and is connected with the top end of the bottom section. The antiskid pad is located at the first section.

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