Detection device driven by cam

Abstract

The utility model discloses a detection device driven by a cam, which comprises a fixed frame and a carrier slide way arranged between two sides of the fixed frame, a workpiece processing position is arranged on the carrier slide way, and a detection assembly is arranged on the fixed frame at a position corresponding to the workpiece processing position. The detection assembly does lifting motion under the transmission action of the transmission structure; the transmission structure comprises a rotating rod, a cam which is installed on the rotating rod and synchronously rotates along with the rotating rod, and a swing rod which is matched with the cam to control the detection assembly to ascend and descend. The structure realizes the lifting motion of the detection assembly through the cooperation of the cam and the swing rod, avoids the complex design of a control system, and is convenient to maintain.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection device technical field, concretely relates to a cam drive's detection device. BACKGROUND

[0002] When detecting workpieces, in order to ensure detection accuracy, displacement detection is usually adopted, that is, detection assembly needs to accurately reach specific measurement positions, so that detection probe can be aligned with key parts of the workpiece to be detected. In the prior art, detection assembly is usually driven by motor and realizes lifting under the cooperation of transmission structures such as synchronous belt or screw rod, however, this design needs high-precision motor driving system, and needs to be equipped with controller, encoder and other components, which makes the whole control system complex and the cost is relatively high.

[0003] However, when detection assembly is driven by cam and swing rod, mechanical contact type transmission between cam and swing rod may produce certain impact during starting and stopping. Especially when detection assembly drops to the last stage, due to the conversion of gravitational potential energy into kinetic energy, detection assembly is damaged due to excessive speed; moreover, the stability and safety of detection assembly cannot be guaranteed during the dropping process. SUMMARY

[0004] To solve the above technical problems, the utility model provides a cam drive's detection device to solve the problems of complex control system of the existing detection device and insufficient stability and safety of the detection device during lifting movement.

[0005] The technical scheme of the utility model is: including fixed frame and the carrier slide that sets up between the both sides of fixed frame, be equipped with workpiece processing position on the carrier slide, the fixed frame is equipped with detection assembly with workpiece processing position corresponding position, detection assembly does lifting movement under the transmission of transmission structure; transmission structure includes rotary lever, the cam that installs on rotary lever and rotates with rotary lever synchronous, swing rod that cooperates with cam to control detection assembly lifting.

[0006] Preferably, the swing rod is a lever structure, including a fulcrum, a driving end and an operating end rotating around the fulcrum, the driving end cooperates with the cam, and the operating end is connected with the detection assembly to drive the detection assembly to lift.

[0007] Preferably, the rotary lever is driven to rotate by a driving motor, and the rotary lever and the motor shaft of the driving motor are respectively provided with synchronous wheels, and the two groups of synchronous wheels are connected by a synchronous belt.

[0008] Preferably, the cam is a disc cam, and the driving end is connected with the profiled surface of the disc cam by a driving roller.

[0009] Preferably, the upper end surface of the fixed frame is provided with a workbench surface, the lower end surface of the workbench surface is fixedly connected with a vertical plate, the vertical plate is provided with a vertical linear rail, and the detection assembly is slidably connected to the vertical plate through the vertical linear rail.

[0010] Preferably, the vertical plate is provided with a buffer spring, and the buffer spring is compressed when the detection assembly is lowered.

[0011] Preferably, the vertical plate is provided with a tension spring, and the tension spring is stretched during the lifting of the detection assembly.

[0012] Preferably, the detection assembly is provided with multiple groups, and the multiple groups of detection assemblies correspond to the multiple workpiece machining positions arranged on the carrier slide in a one-to-one manner.

[0013] Preferably, the multiple groups of detection assemblies are connected through the same bearing plate, two ends of the bearing plate are connected with the two swing rods respectively, and the two swing rods are connected through a synchronous shaft between the fulcrums.

[0014] The beneficial technical effects of the utility model are: the cooperation of the cam and the swing rod realizes the lifting movement of the detection assembly, so that the whole device is simple and clear in structure and convenient to maintain; the accurate lifting of the detection assembly can be realized by rotating the cam through the rotating rod, so that the detection efficiency is improved; and the stability and safety of the detection assembly are ensured by the synergistic effect of the tension spring and the buffer spring during the lowering of the detection assembly. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the overall structure schematic view of the utility model;

[0016] Figure 2 is the internal structure schematic view of the fixed frame of the utility model;

[0017] Figure 3 is the specific structure schematic view of the transmission structure of the utility model;

[0018] Figure 4 is the installation position schematic view of the tension spring of the utility model;

[0019] Figure 5 is the installation position schematic view of the buffer spring of the utility model;

[0020] 1, the fixed frame; 1-1, the vertical plate; 1-2, the mounting plate; 2, the carrier slide; 3, the detection assembly; 4, the driving motor; 5, the transmission structure; 51, the rotating rod; 52, the cam; 53, the swing rod; 54, the driving roller; 55, the transmission roller; 6, the synchronous belt assembly; 61, the synchronous wheel; 7, the first vertical linear rail; 8, the buffer spring; 9, the buffer connecting portion; 10, the second vertical linear rail; 11, the tension spring; 12, the bearing plate; 13, the synchronous shaft. DETAILED DESCRIPTION

[0021] In order to make the technical means of the utility model more clearly understood, and can be implemented according to the content of the specification, the specific embodiments of the utility model are further described in detail below, the following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

[0022] As Figure 1 And Figure 2 The utility model discloses a cam drive's detection device, including fixed frame 1 and the carrier slide 2 of setting between the both sides of fixed frame 1, along the extension direction of carrier slide 2 is equipped with a plurality of workpiece processing positions, a plurality of detection assemblies 3 are set up on fixed frame 1 respectively with a plurality of workpiece processing positions one to one, so that the quality control of each processing procedure is timely and effective, improves the efficiency of whole processing flow, makes production line more smooth.

[0023] In the embodiment, the detection assembly 3 is driven to move up and down by the driving motor 4 to realize displacement detection, and a transmission structure 5 is used for transmission connection between the detection assembly 3 and the driving motor 4.

[0024] Specifically, as Figure 3 The transmission structure 5 includes a rotating rod 51, a cam 52 installed on the rotating rod 51 and synchronously rotated with the rotating rod 51, and a swing rod 53 matched with the cam 52 to control the lifting of the detection assembly 3. The rotating rod 51 is connected with the driving motor 4 through a synchronous belt assembly 6, the synchronous belt assembly 6 includes synchronous pulleys 61 connected with the motor shaft and the rotating rod 51 respectively, the two groups of synchronous pulleys 61 are transmission connected through a synchronous belt, and the rotating rod 51 drives the cam 52 to rotate under the drive of the driving motor 4. The swing rod 53 is a lever structure, including a fulcrum, a driving end and an operating end rotating around the fulcrum, the driving end is matched with the cam 52, and the operating end drives the detection assembly 3 to lift.

[0025] In the embodiment, the cam 52 is a disc cam, and the driving end is rollingly connected with the profile curved surface of the disc cam through a driving roller 54. The operating end is connected with the detection assembly 3 through a lifting block, specifically, the operating end is pivotally connected with a transmission roller 55, the transmission roller 55 is rollingly contacted with the lower part of the lifting block, and drives the lifting block to move up and down under the lever action of the swing rod 53.

[0026] The fixed frame 1 is provided with a first vertical linear rail 7 extending in the vertical direction, and the detection assembly 3 is slidably connected to the fixed frame 1 through the first vertical linear rail 7 while lifting with the lifting block.

[0027] In the embodiment, the upper end surface of the fixed frame 1 is provided with a workbench surface, and the lower end surface of the workbench surface is fixedly connected with a vertical plate 1-1, and the first vertical linear rail 7 is installed between the jacking block and the vertical plate 1-1.

[0028] Further, in order to avoid excessive impact of the detection assembly 3 caused by its own gravity when it is lowered, thereby affecting its precision and service life, a buffer spring 8 is arranged on the vertical plate 1-1. The free end of the buffer spring 8 is connected with the jacking block through a buffer connecting part 9. When the detection assembly 3 is lowered, the buffer connecting part 9 is lowered with the jacking block and compresses the buffer spring 8. Under the action of the elastic force of the buffer spring 8, the speed of the detection assembly 3 gradually decreases, and the impact is reduced in the last stage of the lowering, thereby maintaining the integrity and stability of the internal structure.

[0029] Further, the buffer connecting part 9 and the vertical plate 1-1 are provided with a second vertical linear rail 10, so that when the buffer connecting part 9 is connected with the vertical plate 1-1 through the second vertical linear rail 10, the displacement in the vertical direction is ensured.

[0030] Further, the vertical plate 1-1 is also provided with a tension spring 11, such as Figure 4 The free end of the tension spring 11 is connected with the jacking block. When the detection assembly 3 is jacked up with the jacking block, the tension spring 11 is stretched and stores elastic potential energy. When the cam 52 moves to drive the detection assembly 3 to start to descend, the contraction force of the tension spring 11 makes the detection assembly 3 descend according to the predetermined trajectory.

[0031] The tension spring 11 can continuously provide a relatively stable tension during the descending process, so as to ensure the basic motion state of the detection assembly 3; and the buffer spring 8 plays a main buffering role at the critical moment, that is, when the impact is likely to occur. The two complement each other, thereby improving the stability and safety of the detection assembly 3 during the descending process.

[0032] In the embodiment, in order to realize the synchronous lifting of the multiple detection assemblies 3, the multiple detection assemblies 3 are connected through the same bearing plate 12, such as Figure 5 The bearing plate 12 extends in the same direction as the carrier slide 2, and both ends of the extension direction are connected with the jacking block through the jacking plate, and the bearing plate 12 realizes synchronous lifting with the jacking block under the swinging of the two side swinging rods 53.

[0033] Further, the fulcrums between the two side swinging rods 53 are drivingly connected through a synchronous shaft 13, both ends of the synchronous shaft 13 are provided with mounting plates 1-2 fixedly connected with the lower end surface of the workbench surface, and both ends of the synchronous shaft 13 are respectively rotatably connected to the mounting plates 1-2 at both ends through bearings. Under the synchronous coordination of the synchronous shaft 13, the swinging of the two side swinging rods 53 can make the synchronous lifting of the detection assembly 3 more secure.

[0034] The above merely is preferred implementation manner of the present application, and is not used for limiting the present application, it should be pointed out, for ordinary skilled person in the technical field, on the premise of not departing from the technical principle of the present application, can also make several improvements and variations, these improvements and variations also should be considered as the protection scope of the present application.

Claims

1. A cam-driven detection device, characterized by: The utility model provides a kind of workpiece detection device, including fixed frame (1) and the carrier slide (2) between the both sides of fixed frame (1), workpiece processing position is equipped on the carrier slide (2), detection assembly (3) is equipped in the corresponding position of fixed frame (1) with workpiece processing position, detection assembly (3) is driven under the transmission of transmission structure (5) and does lifting movement;Transmission structure (5) includes rotating rod (51), cam (52) is installed on rotating rod (51) and rotates synchronously with rotating rod (51), swing lever (53) is cooperated with the cam (52) to control detection assembly (3) lifting.

2. A cam-driven detection device according to claim 1, wherein: Swing lever (53) is lever structure, including fulcrum and the driving end and operating end rotating around fulcrum, the driving end is cooperated with cam (52), the operating end is connected with detection assembly (3) and drives detection assembly (3) to realize lifting.

3. A cam-driven detection device according to claim 1, wherein: Rotating rod (51) is driven to rotate by drive motor (4), rotating rod (51) and motor shaft of the drive motor (4) are equipped with synchronous wheel (61) respectively, and two groups of synchronous wheel (61) are driven to connect between synchronous belt.

4. The cam-driven detection device of claim 1, wherein: Cam (52) is disc cam, driving end is connected with the profiled surface of disc cam by driving roller (54) rolling.

5. The cam-driven detection device of claim 1, wherein: The upper end surface of fixed frame (1) is equipped with workbench surface, and the lower end surface of workbench surface is fixedly connected with vertical plate (1-1), and the first vertical linear rail (7) is arranged on the vertical plate (1-1), and the detection assembly (3) is slidably connected to the vertical plate (1-1) through the first vertical linear rail (7).

6. A cam-driven detection device according to claim 5, wherein: The vertical plate (1-1) is equipped with buffer spring (8), and the buffer spring (8) is compressed when the detection assembly (3) is lowered.

7. A cam-driven detection device according to claim 6, wherein: The vertical plate (1-1) is equipped with tension spring (11), and the tension spring (11) is stretched during the lifting process of the detection assembly (3).

8. A cam-driven detection device according to claim 2, wherein: The detection assembly (3) is provided with a plurality of groups, and the plurality of groups of detection assemblies (3) are one-to-one corresponding to the plurality of workpiece processing positions arranged on the carrier slide (2).

9. A cam-driven detection device according to claim 8, wherein: The plurality of groups of detection assemblies (3) are connected through the same bearing plate (12), and the two ends of the two groups of swing levers (53) are connected to the bearing plate (12), and the fulcrums of the two swing levers (53) are connected through the synchronous shaft (13).

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