CN103192285A - Fixture of engine intake tube - Google Patents

Abstract

The invention relates to a special clamp capable of stably clamping an engine intake pipe. It is composed of a clamp body, a double-headed stud, and a pressing plate, and the pressing force is provided by a fastening nut. It can stably clamp the engine intake pipe to facilitate the processing of the waist-shaped surface and 39° surface of the intake pipe. The position of the workpiece is the same for each clamping, and two workpieces can be clamped at the same time. High work efficiency, simple structure and convenient clamping operation. Long life, high stability of the workpiece. It can effectively fix and clamp special-shaped workpieces such as engine intake pipes.

Description

An engine intake pipe clamp

technical field

The present invention relates to a kind of mechanical processing equipment, relates to the technology of the fixture of the machine tool, especially a kind of special fixture of the intake pipe of the engine.

Background technique

The currently known clamps are composed of positioning elements, clamping devices and clamp bodies. The clamps use the principle of levers. The force arm on one side of the center point is multiplied by the force acting on the force arm, which is equal to the length of the force arm on the other side. Multiplied by the force acting on the clamped item, relying on the pressure of the clamping device to fix the clamped item. However, the single structure of the traditional fixture is mainly aimed at objects with relatively regular geometric shapes, so it is difficult for ordinary fixtures to achieve reliable fixation of special-shaped workpieces at special angles, which will cause the engine intake pipe to fall off and be damaged during processing. Those that can hold a single workpiece have low processing efficiency.

Contents of the invention

In order to overcome the disadvantages that the existing clamps cannot effectively fix the engine intake pipe and can only clamp one workpiece at a time, the present invention provides a clamp, which can effectively fix the engine intake pipe, and conveniently fix the waist surface of the engine intake pipe at the same time. And the processing of 39 ° surface.

The technical solution adopted by the present invention to solve the technical problem is: a fixture, which is composed of a positioning element, a clamping device and a clamping body, etc., uses the principle of leverage to fix the clamped object by the pressure of the clamping device, and the positioning element is formed by a cylinder The clamping device is composed of a pressure plate, a fastening nut, a spring, a spring positioning nut, a double-ended screw, and a thrust nut. One end of the double-ended screw is fixed on the bottom plate of the clamp body through a threaded connection. The upper end of the column passes through the waist-shaped hole of the pressure plate and fixes the pressure plate with the fastening nut part. Two supporting plates A and one supporting plate B form a set of supporting devices. Two sets of supporting devices are fixed on the clamp body, which are placed on both sides of the double-ended studs. The supporting plates are fixed on the bottom plate of the clamping body through positioning pins and screw connections. On the middle part of the pressure plate, there is a waist-shaped hole. The width of the waist-shaped hole is larger than the diameter of the two upper ends of the double-ended screw. head hole. The upper end of the double-ended stud is screwed into the spring positioning nut, the spring, the pressing plate and the fastening nut in sequence. Screw in a thrust nut above the joint between the double-ended screw and the bottom plate. When installing, the support plates are arranged in a straight line, and the two support plates A are placed at 150mm from the central axis at both ends. The two support plates B are placed in the middle distance. At the axis of 40mm, the first set of support plates is placed parallel to the side of the bottom plate, and the other set of support plates is placed at an angle of 39° with the side of the bottom plate. By tightening the fastening nut to apply pressure to the workpiece to make it completely positioned, it is convenient to process the waist surface of the intake pipe.

The beneficial effect of the present invention is that the engine intake pipe can be stably clamped to facilitate the processing of the waist-shaped surface and the 39° surface, the position of the workpiece is the same for each clamping, and the work efficiency is high for processing two surfaces at the same time in one tool pass, and the structure is simple The clamping operation is convenient, the fixture has a long service life and the workpiece has high stability.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the front view of the present invention

Fig. 2 is a top view of the present invention

Fig. 3 is the front top view of the pressing plate of the present invention

Fig. 4 is the front view and the top view of two kinds of support plates of the present invention

In the figure 10 clip body 11 fastening nut 12 pressure plate 13 spring 14 spring positioning nut 15 double-headed screw 16 thrust nut 17 workpiece 21 support plate A 22 support plate B 23 trimming pin 24 cylindrical pin 30 waist hole 41 pin hole 42 sink head hole

Detailed ways

As shown in Figure 1 and Figure 2, the present invention consists of clamp body 10, fastening nut 11, pressing plate 12, spring 13, spring positioning nut 14, double-ended screw rod 15, thrust nut 16, support plate A21, support plate B22, cutting Side pin 23, cylindrical pin 24 are combined. Wherein the clamping body 10, fastening nut 11, pressing plate 12, spring 13, spring positioning nut 14, double-ended screw rod 15, thrust nut 16 constitute the clamping device, and one end of the double-ended screw rod 15 is fixed on the bottom plate of the clamping body 10 through threaded connection , screw a thrust nut 16 above the screw joint, the upper end of the double-ended stud 15 is screwed into the spring positioning nut 14, the spring 13, the pressure plate 12, and the fastening nut 11 in turn, wherein the upper end of the double-ended stud 15 passes through the pressure plate 12 The waist-shaped hole 30 and the fastening nut 11 partially fix the pressing plate 12 . Two supporting plates A21 and two supporting plates B22 constitute a set of supporting devices. When installing, the supporting plates are arranged in a straight line, and the two supporting plates A21 are placed at both ends at a distance of 150mm from the central axis. The two supporting plates B22 are placed at the middle from the central axis. 40mm, as shown in Figure 4, pin holes 41 and countersink holes 42 are processed on the support plate A, countersink holes 42 are processed on the support plate B, and two sets of support devices are fixed on the clamp body 10, which are separately placed on the double-headed On both sides of the stud 15, the first group of support plates is placed parallel to the side of the base plate, and the other set of support plates is placed at an angle of 39° with the side of the base plate. As shown in Figure 2, the support plate is fixed on the bottom plate of the clamp body 10 through positioning pins and threaded connections. The cylindrical pin 24 and the trimming pin 23 are arranged on the support plate 21 with a small gap. When installing the positioning pin, it is necessary to ensure that the support plate on one side On the 21, a cylindrical pin 24 is arranged on the other side and the chamfering pin 23 is arranged. As shown in Figure 3, the central part of the pressing plate 12 is processed with a waist-shaped hole 30. The width of the waist-shaped hole 30 is greater than the diameter of the upper end of the double-ended screw rod 15 and does not exceed 0.5mm. When in use, first screw the fastening nut 11 upwards, and the pressure plate 12 is in a non-working state. Rotate the pressure plate 12 around the stud 15 to be parallel to the side of the bottom plate. At this time, the clamp is in an open state, and the two engine intake pipes are passed through Trimming pin 23, cylindrical pin 24 are fixed on two groups of supporting plates, and the pin hole on the workpiece 17 is matched for processing, cooperates with the small gap installation of positioning pin. Rotate the pressure plate 12 around the double-ended screw 15 to the top of the workpiece 17 on the left and right sides so that the pressure plate 12 is perpendicular to the bottom side, and tighten the fastening nut 11 downward to provide a compressive force so that the pressure plate 12 presses the workpiece 17, so that the workpiece 17 achieve full restraint.

Claims (6)

1. engine charge pipe clamp, by setting element, clamping device and clamp body combine, it is characterized in that: setting element is by straight pin (24), chamfered edge pin (23) constitutes, clamping device is by pressing plate (12), clamp nut (11), spring (13), spring setscrew nut (14), double threaded screw (15), Thrust nut (16) constitutes, double threaded screw (15) one ends are fixed on by being threaded on clamp body (10) base plate, wherein the same clamp nut of mounting hole (30) (11) the partial fixing pressing plate (12) of pressing plate (12) is passed in studs (15) upper end, two support plate A(21) and support plate B(22) constitute one group of bracing or strutting arrangement, clamp body (10) is gone up fixedly two groups of bracing or strutting arrangements, split the both sides in studs (15), support plate is fixed on clamp body (10) base plate with being threaded by alignment pin, pressing plate (12) middle part is processed with mounting hole (30). and mounting hole (30) width is no more than 0.5mm greater than double threaded screw (15) two upper end diameter, be processed with pin-and-hole (41) and a pair of counter sink (42) on the support plate A (21), be processed with a pair of counter sink (42) on the support plate B.

2. engine charge pipe clamp according to claim 1 is characterized in that: screw in spring setscrew nut (14), spring (13), pressing plate (12), clamp nut (11) on the studs (15) successively.

3. engine charge pipe clamp according to claim 1 is characterized in that: screw the top, place at double threaded screw (15) and base plate and screw in a Thrust nut (16).

4. engine charge pipe clamp according to claim 1 is characterized in that: support plate straight line two the support plate A (21) that arrange wherein are placed on two end distance axis, two the support plate B in 150mm place (22) and are placed in the middle part apart from axis 40mm place during installation.

5. engine charge pipe clamp according to claim 1 is characterized in that: first group of support plate is parallel to the base plate side to be placed, and another group support plate is with 39 ° of placements of angle of base plate side.

6. engine charge pipe clamp according to claim 1, it is characterized in that: the little matched in clearance of straight pin (24) chamfered edge pin (23) is placed on the support plate (21), need guarantee that when alignment pin is installed the support plate (21) of a side settles straight pin (24) opposite side to settle chamfered edge pin (23).