An ultrasonic pitch measurement device for cemented carbide bars

Abstract

The present invention provides a carbide bar ultrasonic pitch measurement device, which includes a frame and a feeding transmission mechanism, an ultrasonic detection mechanism, a discharging transmission mechanism and a jaw transmission mechanism arranged on the frame. The ultrasonic detection mechanism includes a fixed seat and an ultrasonic detection component. The fixed seat includes a placement rack extending along the X-axis direction and limit racks located at both ends of the placement rack, and two ejector pins are arranged on at least one end of the limit rack. An elastic member is arranged between the ejector pin and the limit rack, and the ejector pin is inserted into the spiral hole at the end of the bar under the action of the elastic member, so as to restrict the self-rotation of the bar. The ultrasonic detection component includes a first driving device and an ultrasonic detection head. The ultrasonic detection head is arranged on the first driving device and can reciprocate and translate along the X-axis direction under the drive of the first driving device. It can automatically detect the pitch of the spiral hole on the bar.

Description

Technical Field

[0001] The present invention relates to the field of ultrasonic testing, and particularly to an ultrasonic pitch measuring device for cemented carbide bars. Background Art

[0002] As Figure 1 shown in the figure, there is a bar 1 (i.e., a cemented carbide bar) with a built-in spiral hole 2. After the bar 1 is prepared, it is necessary to detect the pitch of the spiral hole 2. In the prior art, the inspector holds the ultrasonic probe and translates it along the axial direction of the bar 1 for detection. When two positions with the same waveform appear, the distance between the two positions is the pitch of the spiral hole 2. However, manual detection is inefficient and prone to errors. Summary of the Invention

[0003] Therefore, to solve the above problems, the present invention provides an ultrasonic pitch measuring device for cemented carbide bars, which can realize the automatic detection of the pitch of the spiral hole.

[0004] To achieve the above object, the technical solution provided by the present invention is as follows:

[0005] An ultrasonic pitch measuring device for cemented carbide bars includes a frame and a feeding transmission mechanism, an ultrasonic detection mechanism, a discharging transmission mechanism, and a jaw transmission mechanism arranged on the frame. The jaw transmission mechanism can move back and forth between positions corresponding to the feeding transmission mechanism, the ultrasonic detection mechanism, and the discharging transmission mechanism to realize the transmission of the bar. The ultrasonic detection mechanism includes a fixed seat and an ultrasonic detection component. The fixed seat includes a placement rack extending along the X-axis direction and limiting racks at both ends of the placement rack. At least two ejector pins are arranged on one of the limiting racks. An elastic member is arranged between the ejector pin and the limiting rack. The ejector pin is inserted into the spiral hole at the end of the bar under the action of the elastic member, so as to restrict the rotation of the bar. The ultrasonic detection component includes a first driving device and an ultrasonic detection head. The ultrasonic detection head is arranged on the first driving device and can reciprocally translate along the X-axis direction under the drive of the first driving device.

[0006] Further, at least two sets of runner groups arranged in a straight line in the X-axis direction are provided on the placement rack. Each runner group has two runners arranged side by side, and the bar is placed between the two runners.

[0007] Further, the insertion end of the ejector pin has a conical structure, and the maximum diameter of the cone is larger than the diameter of the spiral hole on the bar.

[0008] Further, the elastic member is a spring. The spring is sleeved on the ejector pin, one end of which abuts against the limiting rack, and the other end abuts against the limiting convex part protruding from the ejector pin.

[0009] Further, the first driving device includes a connecting frame, a slider, a lead screw, and a rotating motor. A first guide rail extending in the X-axis direction is provided on the connecting frame. The slider is slidably assembled on the first guide rail. The ultrasonic detection head is provided on the slider. The lead screw is rotatably assembled on the connecting frame and is in screw connection with the slider. The rotating motor is fixed on the connecting frame and drives the lead screw.

[0010] Further, the first driving device can also drive the ultrasonic detection head to approach or move away from the fixed seat.

[0011] Further, the first driving device further includes a second guide rail extending in the Y-axis direction and a first Y-axis cylinder. The connecting frame is slidably assembled on the second guide rail. The first Y-axis cylinder is fixed on the machine frame and drives and connects the connecting frame.

[0012] Further, the feeding transmission mechanism, the ultrasonic detection mechanism, and the discharging transmission mechanism are arranged in sequence along the X-axis direction. The gripper transmission mechanism includes an X-axis transmission assembly, a Z-axis lifting driving device, a first clamping cylinder, and a first gripper. The Z-axis lifting driving device is arranged on the X-axis transmission assembly. The Z-axis lifting driving device is connected to the first clamping cylinder. The first gripper is arranged on the first clamping cylinder.

[0013] Further, a waste recycling mechanism is further included and is arranged at the rear end of the fixed seat in the Y-axis direction. The waste recycling mechanism includes a recycling barrel and a waste clamping device. The waste clamping device includes a second Y-axis cylinder, a second clamping cylinder, and a second gripper. The second Y-axis cylinder is connected to the second clamping cylinder. The second gripper is arranged on the second clamping cylinder.

[0014] Further, both the feeding transmission mechanism and the discharging transmission mechanism are conveyor belt mechanisms. A blocking block is arranged at the end of the feeding transmission mechanism.

[0015] Through the technical solution provided by the present invention, the following beneficial effects are achieved:

[0016] This equipment can realize the automatic detection of the pitch of the spiral hole on the bar, with fast operation efficiency and high accuracy. Description of the Drawings

[0017] Figure 1 Shown is a schematic structural diagram of a cemented carbide bar;

[0018] Figure 2 Shown is a schematic structural diagram of the ultrasonic pitch measuring equipment for cemented carbide bars in the embodiment;

[0019] Figure 3 Shown is a schematic structural diagram of the ultrasonic pitch measuring equipment for cemented carbide bars in the embodiment from another angle;

[0020] Figure 4 The partial structural schematic diagram of the ultrasonic pitch measuring device for cemented carbide bars in the embodiment is shown Figure 1 ;

[0021] Figure 5 The partial structural schematic diagram of the ultrasonic pitch measuring device for cemented carbide bars in the embodiment is shown Figure 2 ;

[0022] Figure 6 The structural schematic diagram of the first driving device in the embodiment is shown;

[0023] Figure 7 The structural schematic diagram of the thimble in the embodiment is shown Specific embodiments

[0024] To further illustrate the embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention, mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments

[0026] This embodiment provides an ultrasonic pitch measuring device for cemented carbide bars, which is used to measure the bar 1 as shown in Figure 1 shown. Continuing to refer to Figures 2 to 7 shown, the ultrasonic pitch measuring device for cemented carbide bars includes a frame 100 and a feeding transmission mechanism 10, an ultrasonic detection mechanism, a discharging transmission mechanism 40 and a jaw transmission mechanism 50 arranged on the frame 100. The feeding transmission mechanism 10 is used to input the bar 1, and the ultrasonic detection mechanism is used to detect the pitch of the spiral hole 2 on the bar 1; the discharging transmission mechanism 40 is used to output the bar 1. The jaw transmission mechanism 50 can move back and forth between positions corresponding to the feeding transmission mechanism 10, the ultrasonic detection mechanism and the discharging transmission mechanism 40 to realize the transmission of the bar 1

[0027] Specifically, the ultrasonic detection mechanism includes a fixed seat 20 and an ultrasonic detection component. The fixed seat 20 includes a placement rack 21 extending in the X-axis direction and limit racks 22 located at both ends of the placement rack 21. And two ejector pins 24 are provided on at least one end of the limit rack 22. The bar 1 is placed on the placement rack 21. In this specific embodiment, a contact post 23 is provided on one end of the limit rack 22 for abutting against the end face of the bar 1; two ejector pins 24 are provided on the other end of the limit rack 22. An elastic member 25 is provided between the ejector pin 24 and the limit rack 22. The ejector pin 24 is inserted into the spiral hole 2 at the end of the bar 1 under the action of the elastic member 25, so as to restrict the rotation of the bar 1; with such a setting, the bar 1 on the placement rack 21 can be well fixed. Of course, in other embodiments, two ejector pins 24 can also be provided on the limit racks 22 at both ends of the placement rack 21.

[0028] The ultrasonic detection component includes a first driving device 30 and an ultrasonic detection head 70. The ultrasonic detection head 70 is provided on the first driving device 30 and can reciprocally translate in the X-axis direction under the drive of the first driving device 30.

[0029] During detection, as long as the first driving device 30 drives the ultrasonic detection head 70 to translate in the X-axis direction, automation can be achieved, replacing the manual operation in the prior art. The detection efficiency is high and the accuracy is high.

[0030] Furthermore, in this embodiment, the placement rack 21 is provided with at least two groups (two groups in this embodiment) of runner groups linearly distributed in the X-axis direction. Each runner group has two runners 211 arranged side by side. The bar 1 is placed between the two runners 211. It plays a good positioning role, and the contact friction is small, which is convenient for taking and placing operations.

[0031] Furthermore, in this embodiment, the insertion end 241 of the ejector pin 24 has a conical structure, and the maximum diameter of the cone is larger than the aperture of the spiral hole 2 on the bar 1. With such a setting, the opening 3 of the spiral hole 2 (as Figure 1 shown) will abut against the insertion end 241 of the ejector pin 24. The inclined surface of the cone has a guiding effect. When taking and placing the bar 1, the bar 1 can be directly put in or taken out, and the ejector pin 24 will move adaptively without additional operation on the ejector pin 24. For example, when putting in the bar 1, the bar 1 contacts the insertion end 241 of the ejector pin 24, and under the guidance of the inclined surface of the cone, the ejector pin 24 retracts and gives way against the elastic force of the elastic member 25. When the ejector pin 24 corresponds to the opening 3 of the spiral hole 2, it is inserted into the spiral hole 2 under the drive of the elastic member 25 for limiting. When taking out the bar 1, under the guidance of the inclined surface of the cone, the ejector pin 24 retracts and gives way against the elastic force of the elastic member 25 until the bar 1 is separated, and then the ejector pin 24 is reset under the drive of the elastic member 25. The structural design is ingenious. Of course, in other embodiments, it is not limited to this.

[0032] More specifically, the elastic member 25 is a spring. The spring is sleeved on the ejector pin 24, one end of which abuts against the limiting frame 22, and the other end abuts against the limiting convex portion 242 protruding from the ejector pin 24, realizing stable assembly. Of course, in other embodiments, the type and assembly method of the elastic member 25 are not limited thereto.

[0033] Furthermore, the first driving device 30 includes a connecting frame 31, a slider 33, a lead screw 32 and a rotating motor 34. A first guide rail 311 extending in the X-axis direction is provided on the connecting frame 31. The slider 33 is slidably assembled on the first guide rail 311. The ultrasonic detection head 70 is disposed on the slider 33. The lead screw 32 is rotatably assembled on the connecting frame 31 and forms a screw connection with the slider 33. The rotating motor 34 is fixed on the connecting frame 31 and drives to connect the lead screw 32. During operation, the rotating motor 34 drives the lead screw 32 to rotate, and the rotation of the lead screw 32 drives the slider 33 and the ultrasonic detection head 70 thereon to translate in the X-axis direction. The structure is simple and has good stability.

[0034] Specifically, the first driving device 30 can also drive the ultrasonic detection head 70 to approach or move away from the fixed seat 20. Thus, when picking up and placing the bar 1, the first driving device 30 can drive the ultrasonic detection head 70 to move away for yielding to prevent mutual interference. When detection is required, the first driving device 30 drives the ultrasonic detection head 70 to approach to the detection position again.

[0035] More specifically, the first driving device 30 further includes a second guide rail 35 extending in the Y-axis direction and a first Y-axis cylinder 36. The connecting frame 31 is slidably assembled on the second guide rail 35. The first Y-axis cylinder 36 is fixed on the frame 100 and drives to connect the connecting frame 31. The connecting frame 31 and each component thereon are directly driven to move by the driving of the first Y-axis cylinder 36. The structural design is simple and easy to implement.

[0036] Of course, in other embodiments, the structure of the first driving device 30 is not limited thereto.

[0037] The feeding and conveying mechanism 10, the ultrasonic detection mechanism, and the discharging and conveying mechanism 40 are arranged in sequence along the X-axis direction. The gripper and conveying mechanism 50 includes an X-axis conveying assembly 51, a Z-axis lifting drive device 52, a first clamping cylinder 53, and a first gripper (not shown). The Z-axis lifting drive device 52 is arranged on the X-axis conveying assembly 51. The Z-axis lifting drive device 52 is connected to the first clamping cylinder 53, and the first gripper is arranged on the first clamping cylinder 53. The X-axis conveying assembly 51 drives the Z-axis lifting drive device 52, the first clamping cylinder 53, and the first gripper thereon to translate back and forth along the X-axis direction, so that the first gripper corresponds to the feeding and conveying mechanism 10, the ultrasonic detection mechanism, and the discharging and conveying mechanism 40 respectively. The Z-axis lifting drive device 52 drives the first clamping cylinder 53 and the first gripper to lift and lower. The first clamping cylinder 53 drives the first gripper to grab or release the product.

[0038] Specifically, the specific implementation structures of the X-axis conveying assembly 51 and the Z-axis lifting drive device 52 are prior arts. For example, the X-axis conveying assembly 51 can adopt a transmission structure of a lead screw and a slider, and the Z-axis lifting drive device 52 can directly adopt a lifting cylinder to achieve etc.

[0039] The device further includes a waste recycling mechanism 60 arranged at the rear end of the fixed seat 20 in the Y-axis direction for recycling unqualified waste. The waste recycling mechanism 60 includes a recycling bin (not shown) and a waste clamping device. The waste clamping device includes a second Y-axis cylinder (not shown), a second clamping cylinder 62, and a second gripper 63. The second Y-axis cylinder is connected to the second clamping cylinder 62, and the second gripper 63 is arranged on the second clamping cylinder 62. When an unqualified product is detected, the second Y-axis cylinder drives the second clamping cylinder 62 and the second gripper 63 to extend. The second clamping cylinder 62 drives the second gripper 63 to grab the product. Then the second Y-axis cylinder drives the second clamping cylinder 62 and the second gripper 63 to retract, so that the unqualified product corresponds to the upper part of the recycling bin. Finally, the second clamping cylinder 62 drives the second gripper 63 to release, and the unqualified product drops into the recycling bin. The structural design is simple. Of course, in other embodiments, the structure of the waste recycling mechanism 60 is not limited to this, or the waste recycling mechanism 60 is not adopted.

[0040] Furthermore, both the feeding and conveying mechanism 10 and the discharging and conveying mechanism 40 are conveyor belt mechanisms. The conveyor belt mechanism has stable transmission and mature technology. At the same time, a blocking block 11 is arranged at the end of the feeding and conveying mechanism 10 for blocking the bar 1 to prevent it from falling due to the gripper and conveying mechanism 50 not grasping in time. Of course, in other embodiments, the structures of the feeding and conveying mechanism 10 and the discharging and conveying mechanism 40 are not limited to this.

[0041] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes can be made to the present invention in terms of form and details without departing from the spirit and scope of the present invention as defined by the appended claims, and all such changes are within the scope of protection of the present invention.

Claims

1. An ultrasonic pitch measurement device for cemented carbide bars, comprising a frame and a feeding transmission mechanism, an ultrasonic detection mechanism, a discharging transmission mechanism and a jaw transmission mechanism arranged on the frame. The jaw transmission mechanism can move back and forth between positions corresponding to the feeding transmission mechanism, the ultrasonic detection mechanism and the discharging transmission mechanism to realize the transmission of the bars; Characterized in that: The ultrasonic detection mechanism includes a fixed seat and an ultrasonic detection component. The fixed seat includes a placement rack extending in the X-axis direction and limiting racks at both ends of the placement rack. At least two thimbles are arranged on the limiting rack at one end. An elastic member is arranged between the thimble and the limiting rack. The thimble is inserted into the spiral hole at the end of the bar under the action of the elastic member, so as to restrict the rotation of the bar; The ultrasonic detection component includes a first driving device and an ultrasonic detection head. The ultrasonic detection head is arranged on the first driving device and can reciprocate linearly along the X-axis direction under the drive of the first driving device; The placement rack is provided with at least two sets of runner groups linearly distributed in the X-axis direction. Each set of runner groups has two runners arranged side by side. The bar is placed between the two runners; the elastic member is a spring, and the spring is sleeved on the thimble. One end abuts against the limiting rack, and the other end abuts against the limiting convex part protruding from the thimble; the first driving device includes a connecting frame, a slider, a lead screw and a rotating motor. A first guide rail extending in the X-axis direction is arranged on the connecting frame. The slider is slidably assembled on the first guide rail. The ultrasonic detection head is arranged on the slider. The lead screw is rotatably assembled on the connecting frame and forms a screw connection with the slider. The rotating motor is fixed on the connecting frame and drives and connects the lead screw; during operation, the rotating motor drives the lead screw to rotate, and the rotation of the lead screw drives the slider and the ultrasonic detection head thereon to translate along the X-axis direction; the first driving device further includes a second guide rail extending in the Y-axis direction and a first Y-axis cylinder. The connecting frame is slidably assembled on the second guide rail. The first Y-axis cylinder is fixed on the frame and drives and connects the connecting frame.

2. The ultrasonic pitch measurement device for cemented carbide bars according to claim 1, Characterized in that: The insertion end of the thimble is in a conical structure, and the maximum diameter of the cone is larger than the aperture of the spiral hole on the bar.

3. The ultrasonic pitch measurement device for cemented carbide bars according to claim 1, Characterized in that: The first driving device can also drive the ultrasonic detection head to approach or move away from the fixed seat.

4. The ultrasonic pitch measurement device for cemented carbide bars according to claim 1, Characterized in that: The feeding transmission mechanism, the ultrasonic detection mechanism and the discharging transmission mechanism are arranged in sequence along the X-axis direction. The jaw transmission mechanism includes an X-axis transmission component, a Z-axis lifting drive device, a first clamping cylinder and a first jaw. The Z-axis lifting drive device is arranged on the X-axis transmission component. The Z-axis lifting drive device connects the first clamping cylinder. The first jaw is arranged on the first clamping cylinder.

5. The ultrasonic pitch measurement device for cemented carbide bars according to claim 1, Characterized in that: It further includes a waste recycling mechanism arranged at the rear end of the fixed seat in the Y-axis direction. The waste recycling mechanism includes a recycling bin and a waste clamping device. The waste clamping device includes a second Y-axis cylinder, a second clamping cylinder, and second jaws. The second Y-axis cylinder is connected to the second clamping cylinder, and the second jaws are arranged on the second clamping cylinder.

6. The ultrasonic pitch measuring device for cemented carbide bars according to claim 1, characterized in that: both the feeding transmission mechanism and the discharging transmission mechanism are conveyor belt mechanisms, and a blocking block is arranged at the end of the feeding transmission mechanism.

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