Measurement method for positioning by using cylinder tip

Abstract

The invention discloses a measuring method for positioning by using a cylinder tip, and belongs to the technical field of machinery. An air cylinder assembly with a magnetic induction switch, a guide rail, a telescopic frame, a tip and the like are installed on the side face of a machine ram. A measurement main program is executed through a machine tool, an electromagnetic reversing valve is powered on, a piston rod extends out, a ram is fed forwards, a magnetic induction switch signal is triggered, and a calculation subprogram runs in the background. When the signal is triggered, the electromagnetic directional valve loses power, the piston rod retracts, the ram moves backwards, the cylinder and the ram return to the initial position, and measurement is completed. A result obtained by the measuring method can be substituted into a machining program, and parts are directly machined. According to the method, the tip is used for replacing the measuring head, the tip is used for replacing a contact type measuring head and a probe, the measuring method is changed, a sensing switch of the air cylinder is used for replacing a measuring head triggering signal, an imported measuring head with high price can be replaced, cost is greatly saved, the high use threshold of the measuring head is lowered, and a measuring result can be obtained through a simple program.

Description

Technical Field

[0001] The invention relates to a measurement method for positioning by using a cylinder top, and belongs to the technical field of machinery. Background Art

[0002] Since the invention of machine tool probes in 1973, it has been more than 50 years. In foreign countries, machine tool probes are as popular as vernier calipers, and almost every device is equipped with them. However, due to the high price of imported probe products, most domestic equipment is not equipped with them. Even if they are equipped, they are in an embarrassing situation of not being able to use them due to the high technical threshold for use. Moreover, when the cylinder drives the contact trigger probe to measure parts, the cylinder's own accuracy problems, the air source pressure does not meet the standard, the cylinder muffler adjustment, or the piston rod is not in place will lead to inaccurate measurement and processing errors. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a measurement method for positioning using a cylinder top.

[0004] A measuring method for positioning using a cylinder top, the measuring device includes: an electromagnetic reversing valve, a cylinder bracket, a magnetic induction switch, a cylinder, a bracket, a ram, a top, a telescopic frame, screws, a guide rail and a muffler. The measuring device is fixed to the side of the ram with screws, and the main measurement program is executed by the machine tool. The electromagnetic reversing valve is energized, the piston rod is extended, the ram is fed forward, and the magnetic induction switch signal is triggered. The distance from the end face of the ram to the measured part is obtained by running a calculation subroutine in the background, and then calculated with the tool data in the tool magazine, and finally the distance from the tool tip to the measured object part is obtained. At the same time as the signal is triggered, the electromagnetic reversing valve loses power, the piston rod retracts, the ram moves backward, the cylinder assembly and the ram return to the initial position, and the measurement is completed. The results obtained by this measurement method can be substituted into the processing program to directly process the parts.

[0005] The above-mentioned measurement method using the top of the cylinder for positioning, the cylinder assembly is composed of an electromagnetic reversing valve, a muffler, a joint, an air pipe, etc., which is fixed to the side of the ram by screws through two cylinder brackets, and the end face of the piston rod is connected to the bracket. The guide rail is a "convex" style, with a screw hole with multiple countersunk heads in the middle position, and the guide rail is fixed to the side of the ram by screws. The telescopic frame is a "concave" style, with a ball bearing in the middle, which fits tightly with the guide rail and can slide freely, and there is a threaded hole in the front section of the telescopic frame. The top is a "bullet head" style with an external thread at the tail, which is fixed to the front section of the telescopic frame by rotation. The bracket is an "L" shaped style, with a screw hole on the plane, and is fixed to the threaded hole on the tail end of the telescopic frame by screws. The bracket facade has a screw hole, and the cylinder piston rod passes through the screw hole and is locked with a nut.

[0006] The advantages of the present invention are that the tip is used to replace the probe, the tip replaces the contact probe and the probe, the measuring method is changed, and the cylinder's own sensing switch is used instead of the probe trigger signal. It can completely replace the expensive imported probe, greatly save costs, and lower the high threshold for using the probe, and a simple program can be used to obtain the measurement result. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] When considered in conjunction with the accompanying drawings, the present invention can be more completely and better understood and many of the accompanying advantages can be easily known by referring to the detailed description below, but the drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention, as shown in the figure:

[0008] Figure 1 It is a schematic diagram of the structure of the present invention.

[0009] Figure 2 It is a schematic diagram of the first step of the present invention.

[0010] Figure 3 It is a schematic diagram of the second step of the present invention.

[0011] Figure 4 It is a schematic diagram of the action of step 3 of the present invention.

[0012] Figure 5 It is a schematic diagram of the action of step 4 of the present invention.

[0013] The present invention is further described below in conjunction with the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0014] Obviously, many modifications and changes made by those skilled in the art based on the purpose of the present invention belong to the protection scope of the present invention.

[0015] It will be understood by those skilled in the art that, unless expressly stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when an element or component is said to be "connected" to another element or component, it may be directly connected to the other element or component, or there may be an intermediate element or component. The term "and / or" used herein includes any unit and all combinations of one or more associated listed items.

[0016] It should be understood by those skilled in the art that unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as generally understood by those skilled in the art.

[0017] Example 1: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the measuring device includes an electromagnetic reversing valve 1, a joint 2, an air pipe 3, a cylinder bracket 4, a cylinder 5, a magnetic induction switch 6, a piston rod 7, a bracket 8, a nut 9, a slide 10, a slide end face 11, a tool 12, a measured part 13, a top 14, a telescopic frame 15, a screw 16, a guide rail 17, a muffler 18 and a reference datum 19.

[0018] A measuring method for positioning using a cylinder top includes the following steps: the cylinder assembly is composed of an electromagnetic reversing valve 1, a joint 2, an air pipe 3, a cylinder bracket 4, a cylinder 5, a magnetic induction switch 6, a piston rod 7 and a muffler 18, etc., and is fixed to the side of a ram 10 by screws 12 through two cylinder brackets 4, and the end face of the piston rod 7 is connected to the bracket 8. The guide rail 17 is a "convex" style, and the middle position is a screw through hole with multiple countersunk heads. The guide rail 17 is fixed to the side of the ram 10 by screws 12. The telescopic frame 15 is a "concave" style, with a ball bearing in the middle, which is tightly matched with the guide rail 17, and there is a threaded hole in the front section of the telescopic frame 15. The top 14 is a "bullet head" style with an external thread at the tail, and is fixed to the front section of the telescopic frame by rotation. The bracket 8 is an "L" shaped style, with a screw through hole on the plane, and is fixed to the threaded hole on the upper end of the telescopic frame 15 by screws 12. The vertical surface of the bracket 8 is provided with a screw through hole, and the piston rod 7 passes through the screw hole and is locked with a nut 9. The installation of the device is completed. The ram 10 is at the reference datum 19 position, and the piston rod 7 is at the retracted position, which is the initial state.

[0019] Step 1: The machine tool executes the main measurement program, the electromagnetic reversing valve 1 is energized, the rodless chamber of the cylinder 5 is inflated, and the rod chamber is deflated through the muffler 18. The piston rod 7 is fully extended to drive the telescopic frame 15 to move on the guide rail 17. The piston rod 7 is extended to make the top 14 on the telescopic frame 15 close to the measured part 13. During the extension process, the magnetic induction switch 6 has a flashing induction signal, and the main program executes step 2.

[0020] Step 2: The ram 10 is fed toward the part 13 to be measured, leaving the reference datum 19 , and the center 14 contacts the part 13 to be measured.

[0021] Step 3: The ram 10 continues to move forward, the telescopic frame 15 of the top 14 moves backward, the piston rod 7 moves backward, and the rodless cavity is compressed. When it reaches a certain position, the signal of the magnetic induction switch 6 is triggered again, and the main program executes step 4.

[0022] When the signal of the magnetic induction switch 6 is triggered again, the calculation subroutine is run in the background. When the signal is triggered, since the distance from the end face 11 of the ram to the top 14 is a fixed value, the distance from the measured part 13 to the end face 11 of the ram is obtained by moving the ram 10 forward, and then the distance is calculated with the data of the tool 12 in the tool magazine, and finally the distance from the tool 12 to the measured part 13 is obtained.

[0023] Step 4: The electromagnetic reversing valve 1 loses power, the rod chamber is inflated, the piston rod 7 is retracted, the rodless chamber is deflated through the muffler 18, and the ram 10 moves backward away from the measured part 13 and returns to the reference datum 19 position. The cylinder 5 assembly and the ram 10 are all in the initial position, and the measurement program ends. This measurement result can be substituted into the processing program to directly process the part.

[0024] As described above, the embodiments of the present invention are described in detail, but it is obvious to those skilled in the art that many variations are possible without departing from the inventive point and effect of the present invention. Therefore, all such variations are also included in the protection scope of the present invention.

Claims

1. A method for measuring positioning using a cylinder top, characterized in that: The measuring device includes: an electromagnetic reversing valve, a cylinder bracket, a magnetic induction switch, a cylinder, a bracket, a ram, a top, a telescopic frame, screws, a guide rail and a muffler. The measuring device is fixed to the side of the ram with screws. The main measurement program is executed by the machine tool. The electromagnetic reversing valve is energized, the piston rod is extended, the ram is fed forward, the top contacts the measured part, the piston rod is retracted, the rodless cavity is compressed, and the magnetic induction switch signal is triggered. The calculation subroutine is run in the background to calculate the distance from the end face of the ram to the measured part, and then the distance is calculated with the tool data in the tool magazine to finally obtain the distance from the tool tip to the part of the object to be measured. At the same time when the signal is triggered, the electromagnetic reversing valve loses power, the piston rod is retracted, the ram moves backward, the cylinder assembly and the ram return to the initial position, and the measurement is completed.

2. A method for measuring positioning using a cylinder top according to claim 1, characterized in that: The guide rail is of "convex" shape, with a plurality of countersunk screw holes in the middle, and the guide rail is fixed to the side of the ram by screws. The telescopic frame is of "concave" shape, with a ball bearing in the middle, which fits tightly with the guide rail and can slide freely. There is a threaded hole in the front section of the telescopic frame, and the top is of "bullet head" style with an external thread at the tail, which is fixed to the front section of the telescopic frame by rotation. The bracket is of "L" shape, with a screw hole on the plane, which is fixed to the threaded hole on the upper end of the telescopic frame by screws. The bracket facade has a screw hole, and the cylinder piston rod passes through the screw hole and is locked with a nut.

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