Adjustable flexible clamp for processing spacer iron

Abstract

The utility model discloses an adjustable flexible clamp for processing spacer iron. The adjustable flexible clamp comprises a plate body, the number of the plate bodies is two, the plate bodies are bilaterally symmetrical, sliding grooves are formed in the upper ends of the plate bodies, sliding barrels are slidably connected into the sliding grooves, circular rings are transversely slidably connected into the sliding barrels, circular pipes are arranged on the opposite inner side faces of the two circular rings, and the circular pipes penetrate out of the sliding barrels and are provided with clamping plates. Tension springs are arranged between the opposite inner side faces of the two circular rings and the inner wall of the sliding cylinder, and the outer arc faces of the circular pipes are movably sleeved with the tension springs correspondingly. According to the adjustable flexible clamp for spacer iron machining, workpieces are flexibly clamped, the adjustable flexible clamp is suitable for machining adjustable spacer iron of different sizes, the clamping force is conveniently determined, and the machining efficiency is improved. The position of the workpiece is determined in an air suction mode in an auxiliary mode, the workpiece can be clamped by the flexible clamp more accurately, movement of the workpiece in the clamping process is reduced, and the machining quality of the adjustable spacer iron is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of adjustable spacer iron processing, in particular to a flexible clamp for processing adjustable spacer iron. Background Art

[0002] The switch spacer is one of the key components connecting two tracks. Its main function is to isolate the two adjacent rails to prevent the train from going off track. When the train passes through the switch, according to the weight and speed of the train body, the traction will cause the non-driving wheel and the ground to slip relative to each other. At this time, due to the change in track gauge, the switch spacer is needed to prevent the wheel from being misaligned and ensure the normal operation of the train. There are many types of spacers according to different usage needs. The various components of some spacers can be adjusted to increase the scope of use of the spacer. During the machining process, in order to facilitate the processing, it is necessary to use a clamp to clamp the adjustable spacer iron workpiece; in the prior art, two or more clamps are brought close to each other to limit the position of the adjustable spacer iron workpiece, so that the position of the adjustable spacer iron workpiece is fixed, but different workpieces have different sizes. When clamping, the clamp needs to be adjusted according to the size change, and the scope of application is relatively low. Even if some flexible clamps are used in the processing of some adjustable spacer iron workpieces, workpieces of different sizes can be clamped, but the clamping accuracy is low, and the workpiece is easy to move during the clamping process, affecting the machining quality. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a flexible clamp for processing adjustable spacer irons, which flexibly clamps the workpiece and is suitable for processing adjustable spacer irons of different sizes. Air suction is used to assist in determining the position of the workpiece, so that the flexible clamp can clamp the workpiece more accurately, reduce the movement of the workpiece during the clamping process, improve the quality of the adjustable spacer iron processing, and effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned object, the present utility model provides the following technical solutions: an adjustable flexible fixture for spacer iron processing, comprising a plate body;

[0005] Plate body: There are two of them and they are symmetrical on the left and right. The upper ends of the plate bodies are each provided with a slide groove, the inside of the slide groove is slidably connected to a slide cylinder, the inside of the slide cylinder is laterally slidably connected to a ring, the opposite inner sides of the two rings are provided with a round tube, the round tubes respectively pass through the interior of the slide cylinder and are provided with a clamping plate, and tension springs are provided between the opposite inner sides of the two rings and the inner wall of the slide cylinder, the tension springs are movably sleeved on the outer arc surface of the round tube, flexibly clamping the workpiece, suitable for the processing of adjustable spacer irons of different sizes, convenient for determining the clamping force, and using air suction to assist in determining the position of the workpiece, so that the flexible clamp can clamp the workpiece more accurately, reduce the movement of the workpiece during the clamping process, and improve the quality of the adjustable spacer iron processing.

[0006] Furthermore, the outer arc surface of the circular tube is provided with a limiting slide, and the limiting slide is connected to the slide groove in a transverse sliding manner to limit the rotation of the circular tube.

[0007] Furthermore, it also includes a single chip microcomputer, which is located between the two plates. The input end of the single chip microcomputer is electrically connected to an external power supply to control the start and stop of the air suction component.

[0008] Furthermore, it also includes suction holes, which are respectively arranged on the opposite inner sides of the two splints. The inside of the suction holes is laterally slidably connected with a suction plate, and the inside of the slide is provided with an electric push rod. The telescopic ends of the electric push rod pass through the inside of the ring and the round tube respectively and are fixedly connected to the suction plate. The input ends of the electric push rods are electrically connected to the output ends of the single-chip microcomputer, and air suction is used to assist in determining the position of the workpiece.

[0009] Furthermore, a distance measuring sensor is provided inside the slide, and the distance measuring sensor is installed in conjunction with the ring. The output end of the distance measuring sensor is electrically connected to the input end of the single chip microcomputer to detect the expansion and contraction amplitude of the tension spring.

[0010] Furthermore, it also includes a turntable, which is rotatably connected to the rotating grooves on the outer sides of the two slides. An adjusting screw is provided in the middle of the turntable, and the adjusting screw is threadedly connected to the screw hole on the surface of the plate to facilitate the movement of the slide.

[0011] Furthermore, the outer arc surface of the adjusting screw is rotatably connected to a support plate, and the lower ends of the support plates are respectively connected to the guide grooves on the surface of the plate body in a transverse sliding manner to provide rotational support for the end of the adjusting screw.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the adjustable flexible clamp for spacer iron processing has the following advantages:

[0013] The adjusting screw is rotated to push the two slides closer to each other. When the clamping plate contacts the surface of the workpiece, as the slide continues to move, the elastic force of the tension spring is overcome and the ring is pushed to slide in the slide. The elastic force of the tension spring is used to flexibly clamp the workpiece, which is suitable for clamping workpieces of different sizes. During the clamping process, the expansion and contraction amplitude of the tension spring is detected by a distance sensor to determine the clamping force. At the same time, the single-chip microcomputer is used to start the electric push rod to drive the suction plate to slide in the suction hole, so that the air pressure between the suction plate and the workpiece is reduced. Under the action of atmospheric pressure, the position between the workpiece and the clamping plate is fixed, and the clamping position of the workpiece is more firmly. The workpiece is flexibly clamped, which is suitable for the processing of adjustable spacer irons of different sizes, and the clamping force is conveniently determined. The position of the workpiece is determined by air suction, so that the flexible clamp can clamp the workpiece more accurately, reduce the movement of the workpiece during the clamping process, and improve the quality of adjustable spacer iron processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the front cross section of the overall device of the utility model.

[0016] In the figure: 1 plate, 2 slide, 3 slide, 4 ring, 5 round tube, 6 tension spring, 7 clamp, 8 limit slide, 9 single chip microcomputer, 10 suction hole, 11 suction plate, 12 electric push rod, 13 distance sensor, 14 turntable, 15 adjustment screw, 16 support plate. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-2 , this embodiment provides a technical solution: an adjustable flexible fixture for spacer iron processing, comprising a plate body 1;

[0019] The plate body 1 has two plates and is symmetrical on both sides. The upper ends of the plate bodies 1 are provided with slide grooves 2. The interiors of the slide grooves 2 are slidably connected to slide cylinders 3. The interiors of the slide cylinders 3 are laterally slidably connected to rings 4. The opposite inner sides of the two rings 4 are provided with round tubes 5. The round tubes 5 respectively pass through the interior of the slide cylinder 3 and are provided with splints 7. Tension springs 6 are provided between the opposite inner sides of the two rings 4 and the inner walls of the slide cylinder 3. The tension springs 6 are movably sleeved on the outer arc surfaces of the round tubes 5. The workpiece is placed between the two splints 7 to push the two slide cylinders 3 to move relative to each other. When the splints 7 contact the surface of the workpiece, the two splints 7 can no longer approach each other. As the slide cylinder 3 continues to move, the elastic force of the tension spring 6 will be overcome, pushing the ring 4 to slide in the slide cylinder 3. The elastic force of the tension spring 6 is used to make the splint 7 exert force on the workpiece. The workpiece is flexibly clamped by applying force, and is suitable for clamping workpieces of different sizes. The outer arc surface of the circular tube 5 is provided with a limit slide 8, and the limit slide 8 is connected to the slide groove 2 in a transverse sliding manner. The rotation of the slide cylinder 3 is limited by the transverse sliding connection between the limit slide 8 and the slide groove 2. It also includes a single-chip microcomputer 9, which is located between the two plate bodies 1. The input end of the single-chip microcomputer 9 is electrically connected to an external power supply to control the start and stop of the entire device. It also includes an air intake hole 10, which is respectively provided on the opposite inner side surfaces of the two splints 7. The interior of the air intake hole 10 is transversely slidably connected with an air intake plate 11, and the interior of the slide cylinder 3 is provided with an electric push rod 12. The telescopic end of the electric push rod 12 passes through the interior of the ring 4 and the circular tube 5 respectively and is fixedly connected to the air intake plate 11. The input ends of the push rods 12 are electrically connected to the output ends of the single-chip microcomputer 9. The electric push rods 12 are started, and the telescopic ends of the electric push rods 12 drive the suction plate 11 to slide in the suction hole 10, so that the space between the suction plate 11 and the workpiece is increased. At the same time, the rubber pads on the surface of the clamping plate 7 are used to seal the clamping plate 7 and the workpiece to prevent external air from entering between the suction plate 11 and the workpiece. The air pressure between the suction plate 11 and the workpiece is reduced. Under the action of atmospheric pressure, the position between the workpiece and the clamping plate 7 is fixed, and the clamping position of the workpiece is more secure. A distance sensor 13 is provided inside the slide 3, and the distance sensor 13 is installed in conjunction with the ring 4. The output end of the distance sensor 13 is electrically connected to the input end of the single-chip microcomputer 9 to detect the distance moved by the ring 4, and then judge the tension spring 6. The telescopic amplitude is used to determine the clamping force. When the single-chip microcomputer 9 receives the distance change signal sent by the distance measuring sensor 13, it indicates that the suction plate 11 is in contact with the workpiece. It also includes a turntable 14, which is rotatably connected to the rotating grooves of the two slide cylinders 3 facing away from the outer sides. The middle part of the turntable 14 is provided with an adjusting screw 15, which is threadedly connected to the screw hole on the surface of the plate body 1. The adjusting screw 15 is rotated and threadedly connected to the screw hole on the surface of the plate body 1 through the adjusting screw 15. The adjusting screw 15 drives the two turntables 14 to move relative to each other, and the turntable 14 and the slide cylinder 3 rotate relative to each other, pushing the two slide cylinders 3 closer to each other. The outer arc surface of the adjusting screw 15 is rotatably connected to the support plate 16, and the lower ends of the support plates 16 are respectively connected to the guide grooves on the surface of the plate body 1 in a transverse sliding manner.Provide support for the end of the adjusting screw 15.

[0020] The working principle of the flexible clamp for processing adjustable spacer iron provided by the present invention is as follows: during the processing of adjustable spacer iron, the workpiece is placed between the two plate bodies 1, the adjusting screw 15 is rotated, and the adjusting screw 15 is threadedly connected to the screw hole on the surface of the plate body 1, so that the adjusting screw 15 drives the two turntables 14 to move relative to each other, and the turntable 14 and the slide cylinder 3 rotate relative to each other, pushing the two slide cylinders 3 to approach each other. During the movement of the slide cylinder 3, the limit slide plate 8 is connected to the lateral sliding of the slide groove 2 to limit the rotation of the slide cylinder 3. When the clamping plate 7 contacts the surface of the workpiece, the two clamping plates 7 can no longer continue to approach each other. As the slide cylinder 3 continues to move, the elastic force of the tension spring 6 will be overcome, pushing the ring 4 to slide in the slide cylinder 3, and the elastic force of the tension spring 6 will be used to make the clamping plate 7 apply a force to the workpiece to adjust the workpiece. It performs flexible clamping and is suitable for clamping workpieces of different sizes. During the clamping process, the distance moved by the ring 4 is detected by the distance sensor 13, and then the expansion and contraction amplitude of the tension spring 6 is judged to determine the clamping force. When the single-chip microcomputer 9 receives the distance change signal sent by the distance sensor 13, the suction plate 11 contacts the workpiece and the electric push rod 12 is started. The telescopic end of the electric push rod 12 drives the suction plate 11 to slide in the suction hole 10, thereby increasing the space between the suction plate 11 and the workpiece. At the same time, the rubber pad on the surface of the splint 7 is used to seal the splint 7 and the workpiece to prevent external air from entering between the suction plate 11 and the workpiece. The air pressure between the suction plate 11 and the workpiece is reduced. Under the action of atmospheric pressure, the position between the workpiece and the splint 7 is fixed, and the clamping position of the workpiece is more secure.

[0021] It is worth noting that the single-chip microcontroller 9 disclosed in the above embodiment can be a PIC16F1823-I / P model single-chip microcontroller, the electric push rod 12 and the ranging sensor 13 can be freely configured according to the actual application scenario, the electric push rod 12 can be a LAM1 model electric push rod, and the ranging sensor 13 can be a T150HJG-CGQ model reflective laser ranging sensor. The single-chip microcontroller 9 controls the operation of the electric push rod 12 and the ranging sensor 13 using methods commonly used in the prior art.

[0022] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An adjustable flexible fixture for spacer iron processing, characterized by: It includes a plate body (1); The plate body (1) has two plates that are symmetrical in left and right. The upper ends of the plates (1) are both provided with slide grooves (2). The interiors of the slide grooves (2) are both slidably connected to slide cylinders (3). The interiors of the slide cylinders (3) are both transversely slidably connected to rings (4). The opposite inner sides of the two rings (4) are both provided with circular tubes (5). The circular tubes (5) respectively pass through the interiors of the slide cylinders (3) and are provided with clamping plates (7). Tension springs (6) are respectively provided between the opposite inner sides of the two rings (4) and the inner wall of the slide cylinder (3). The tension springs (6) are respectively movably sleeved on the outer arc surfaces of the circular tubes (5).

2. The adjustable flexible clamp for spacer iron processing according to claim 1, characterized in that: The outer arc surface of the circular tube (5) is provided with a limiting slide plate (8), and the limiting slide plate (8) is connected to the slide groove (2) in a transverse sliding manner.

3. The adjustable flexible clamp for spacer iron processing according to claim 1, characterized in that: It also includes a single chip microcomputer (9), which is located between the two plates (1), and an input end of the single chip microcomputer (9) is electrically connected to an external power supply.

4. The adjustable flexible clamp for spacer iron processing according to claim 3, characterized in that: The invention also includes an air suction hole (10), wherein the air suction hole (10) is respectively arranged on the opposite inner side surfaces of the two clamping plates (7), and the interior of the air suction hole (10) is connected to the air suction plate (11) in a transverse sliding manner. The interior of the slide cylinder (3) is provided with an electric push rod (12), and the telescopic end of the electric push rod (12) passes through the interior of the ring (4) and the circular tube (5) respectively and is fixedly connected to the air suction plate (11), and the input end of the electric push rod (12) is electrically connected to the output end of the single chip computer (9).

5. The adjustable flexible clamp for spacer iron processing according to claim 3, characterized in that: A distance sensor (13) is provided inside the slide (3), the distance sensor (13) is installed in conjunction with the ring (4), and the output end of the distance sensor (13) is electrically connected to the input end of the single chip microcomputer (9).

6. The adjustable flexible clamp for spacer iron processing according to claim 1, characterized in that: The plate (1) further comprises a turntable (14), which is rotatably connected to the turntables (14) on the opposite outer sides of the two slide cylinders (3). An adjusting screw (15) is provided in the middle of the turntable (14), and the adjusting screw (15) is threadedly connected to the screw hole on the surface of the plate body (1).

7. The adjustable flexible clamp for spacer iron processing according to claim 6, characterized in that: The outer arc surface of the adjusting screw (15) is rotatably connected to a support plate (16), and the lower ends of the support plates (16) are respectively connected to the guide grooves on the surface of the plate body (1) in a transverse sliding manner.

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