Interchangeable measuring arm measuring probe

Abstract

This invention relates to the field of mechanical manufacturing technology and discloses a replaceable measuring arm probe, including a chuck with a mounting hole inside. A measuring probe is movably mounted inside the mounting hole. A set screw groove is formed on the top of the chuck, and a set screw is disposed inside the set screw groove. An adjustment mechanism is provided on the outer surface of the chuck. The adjustment mechanism includes a first housing, a drive rod, a drive gear, an adjusting rod, a driven gear, a moving seat, a fixing block, and a limiting assembly. The first housing is fixedly mounted on both the upper and lower sides of the outer surface of the chuck. A drive rod is disposed inside the first housing, and a drive gear is fixedly mounted on the outer surface of the drive rod. This replaceable measuring arm probe, by setting the set screw groove, set screw, and adjustment mechanism, allows for more convenient wear and replacement of the measuring probe, greatly saving costs. Furthermore, the length of the measuring probe can be adjusted as needed.

Description

Technical Field

[0001] This invention relates to the field of mechanical manufacturing technology, specifically to a replaceable measuring arm measuring probe. Background Technology

[0002] The outline and allowance lines of composite tooling and other mold tooling (such as forming molds) are machined by machine tools. However, some tooling is too long, exceeding the travel of the machine tool, and some cavities are too narrow, making it impossible for the cutting tool to go down and process them. In this case, the fitter needs to manually fill in the lines to complete the process. The positional accuracy of the outline and allowance lines of the parts is only ±0.3 mm. In particular, it is difficult to guarantee the accuracy of some curved surfaces by hand scribing. Therefore, a measuring arm is used to mark points according to the digital model, and the fitter measures according to the connection line of the points.

[0003] However, the tungsten carbide probes for scribing and marking on the measuring arm were originally press-fitted into the chuck and could not be removed. Moreover, they were only 5 mm long and could not be adjusted in length as needed. After a period of use, the probes would wear out and need to be re-grinded. When the probes were completely worn out, the chuck and probes together needed to be replaced. Replacing a single tungsten carbide probe would cost more than 300 yuan, while replacing a single probe would only cost 3.88 yuan, resulting in unnecessary financial waste. Therefore, a replaceable measuring arm probe was proposed to solve the above problems. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a replaceable measuring arm and measuring probe, which has the advantages of easy replacement of the measuring probe. It solves the problems in existing technologies where the probe wears out after a period of use, requiring replacement along with the clamp, and the probe length cannot be adjusted as needed.

[0006] (II) Technical Solution

[0007] To achieve the above-mentioned purpose of conveniently replacing the measuring probe, the present invention provides the following technical solution: a replaceable measuring arm measuring probe, including a clamp, wherein the clamp has an internal mounting hole, the measuring probe is movably installed inside the mounting hole, the top of the clamp has a set screw groove, the set screw groove is provided with a set screw, and the outer surface of the clamp is provided with an adjustment mechanism.

[0008] The adjustment mechanism includes a first housing, a drive rod, a drive gear, an adjustment rod, a driven gear, a movable seat, a fixed block, and a limiting component. The first housing is fixedly installed on both the upper and lower sides of the outer surface of the chuck. The drive rod is disposed inside the first housing, and the drive gear is fixedly installed on the outer surface of the drive rod. The adjustment rod is disposed inside the first housing, and the driven gear is fixedly installed on the outer surface of the adjustment rod. The movable seat is disposed on the outer surface of the adjustment rod, and the fixed block is fixedly connected to the right side of the movable seat. The limiting component is disposed on the outer surface of the first housing.

[0009] Preferably, the limiting component includes a rectangular box, a support column, a spring, a sliding sleeve, a slot, and a plug rod. A rectangular box is fixedly installed on the right side of the first housing. A support column is fixedly connected between the inner walls of the left and right sides of the rectangular box. A spring is sleeved on the outer surface of the support column. A sliding sleeve is slidably connected to the outer surface of the support column. A slot is opened on the outer surface of the fixing block. A plug rod is provided inside the slot.

[0010] Preferably, the right end of the drive rod passes through the first housing and extends to the outside of the first housing, and a rotating handle is fixedly installed on the right side of the drive rod, and the outer surface of the rotating handle is provided with anti-slip texture.

[0011] Preferably, the drive rod is arranged horizontally, the adjusting rod is arranged vertically, and bearings are provided at the connection points between the drive rod and the adjusting rod and the inner wall of the first housing. The outer surfaces of the drive rod and the adjusting rod are both interference-fitted with the inner ring of the bearings.

[0012] Preferably, the outer surface of the adjusting rod and the inner wall of the moving seat are both provided with threads, the adjusting rod is threadedly connected to the moving seat, the driving gear and the driven gear are both bevel gears, and the driving gear and the driven gear mesh with each other.

[0013] Preferably, a first through hole is provided on each of the two adjacent sides of the first housing, and a second through hole is provided on both the upper and lower sides of the outer surface of the chuck. The second through hole is connected to the mounting hole, and the fixing block extends into the interior of the mounting hole through the first through hole and the second through hole.

[0014] Preferably, a guide frame is fixedly installed on the left inner wall of the first housing, and a guide seat is slidably connected to the vertical part of the guide frame. The right side of the guide seat is fixedly connected to the left side of the fixing block.

[0015] Preferably, the top of the rectangular box has a first sliding hole, the top of the sliding sleeve is fixedly connected to a handle, the top of the handle extends to the outside of the rectangular box through the first sliding hole, the bottom of the rectangular box has a second sliding hole, the bottom of the sliding sleeve is fixedly connected to a connecting arm, the bottom end of the connecting arm extends to the outside of the rectangular box through the second sliding hole, and the bottom of the connecting arm is fixedly connected to the top of the insertion rod.

[0016] Preferably, a third through hole is provided on the right side of the first housing, and the insertion rod extends into the interior of the first housing through the third through hole. The number of slots on the outer surface of the fixing block is two, and the insertion rod and the slots are engaged with each other.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the present invention provides a replaceable measuring arm measuring probe, which has the following advantages:

[0019] 1. This replaceable measuring arm probe, through the setting of a set screw groove, a set screw, and an adjustment mechanism, allows for easy replacement of the measuring probe. Rotating the set screw outwards disengages it from the set screw groove. Pulling the handle to the right causes the connecting arm to move the insertion rod out of the slot. Rotating the handle drives the drive rod and the active gear, which in turn drives the driven gear and the adjustment rod. This causes the moving seat to move the fixed block outwards through the first and second through holes, aligning the fixed block with the insertion rod in its inner slot. Releasing the handle allows the spring to rebound, pushing the insertion rod into the slot and limiting the fixed block. The measuring probe can then be removed from the mounting hole for grinding and replacement, significantly saving costs and making it more convenient to use.

[0020] 2. The interchangeable measuring arm measuring probe, through the setting of an adjustment mechanism, when the length of the measuring probe needs to be adjusted, inserts the measuring probe into the inside of the mounting hole, pushes the measuring probe to the left, retains the length of the measuring probe outside as needed, and then rotates the handle in the opposite direction, which drives the drive rod and the active gear to rotate, thereby driving the driven gear and the adjustment rod to rotate, so that the moving seat drives the fixed block to move inward through the first through hole and the second through hole to the inside of the mounting hole to contact the measuring probe and limit it. At the same time, the insertion rod enters the inside of the outer slot to limit the fixed block a second time, thus completing the adjustment of the length of the measuring probe. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a front sectional view of the present invention;

[0023] Figure 3 For the present invention Figure 2 Enlarged view of a local structure in the middle;

[0024] Figure 4 For the present invention Figure 3 Enlarged view of the structure at point A in the middle.

[0025] In the diagram: 1. Chuck, 2. Mounting hole, 3. Measuring probe, 4. Set screw groove, 5. Set screw, 6. Adjustment mechanism, 601. First housing, 602. Drive rod, 603. Drive gear, 604. Adjustment rod, 605. Driven gear, 606. Moving seat, 607. Fixing block, 608. Limiting assembly, 681. Rectangular box, 682. Support column, 683. Spring, 684. Sliding sleeve, 685. Slot, 686. Insert rod, 7. Rotating handle, 8. Guide frame, 9. Guide seat, 10. Handle, 11. Connecting arm. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figure 1-4 The interchangeable measuring arm measuring probe includes a chuck 1, with a mounting hole 2 inside the chuck 1. A measuring probe 3 is movably mounted inside the mounting hole 2. The measuring probe 3 is a 1.6 mm argon arc welding tungsten needle. A set screw groove 4 is provided on the top of the chuck 1. A set screw 5 is provided inside the set screw groove 4. The set screw 5 is an M4 set screw. An adjustment mechanism 6 is provided on the outer surface of the chuck 1.

[0028] In the implementation of this case, a first housing 601 is fixedly installed on both the upper and lower sides of the outer surface of the chuck 1, and other components are then installed inside it. A drive rod 602 is installed inside the first housing 601. When the drive rod 602 rotates, it drives the drive gear 603 on its outer surface to rotate. An adjusting rod 604 is installed inside the first housing 601, and a driven gear 605 is fixedly installed on the outer surface of the adjusting rod 604. Both the drive gear 603 and the driven gear 605 are bevel gears. 5 mesh with each other, and when the driving gear 603 rotates, it drives the driven gear 605 to rotate. The driven gear 605 drives the adjusting rod 604 to rotate, and then drives the moving seat 606 to move up and down with the cooperation of the guide frame 8 and the guide seat 9 through the thread. This causes the fixing block 607 on the right side of the moving seat 606 to move up and down, and then enters or leaves the interior of the mounting hole 2 through the first through hole and the second through hole. The outer surface of the first housing 601 is provided with a limit component 608 for secondary fixing of the fixing block 607 to prevent it from displacing due to its own weight.

[0029] In the implementation of the case, a rectangular box 681 is fixedly installed on the right side of the first housing 601. A support column 682 is fixedly connected between the inner walls of the left and right sides of the rectangular box 681. A spring 683 is sleeved on the outer surface of the support column 682. The left and right sides of the spring 683 are fixedly connected to the inner wall of the rectangular box 681 and the sliding sleeve 684, respectively. Under the action of elastic potential energy and external pulling force obtained by the spring 683, the sliding sleeve 684 is driven to move left and right on the outer surface of the support column 682. Then, through the connecting arm 11 and the third through hole, the insertion rod 686 is driven to leave or enter the interior of the slot 685.

[0030] In the implementation of the case, a guide frame 8 is fixedly installed on the inner left side of the first housing 601. A guide seat 9 is slidably connected to the vertical part of the guide frame 8. The right side of the guide seat 9 is fixedly connected to the left side of the fixed block 607. This can limit the movement of the movable seat 606, preventing it from rotating with the adjusting rod 604 and allowing it to move only in the up and down direction.

[0031] In the implementation of the case, by opening two slots 685 on the outer surface of the fixing block 607, and by engaging the insertion rod 686 with the slots 685, the length of the measuring probe 3 can be adjusted and its position can be fixed.

[0032] The working principle of this invention is as follows: When the measuring probe 3 needs to be worn or replaced, loosen the M4 set screw, so that the set screw 5 leaves the inside of the set screw groove 4. Then, through the adjustment mechanism 6, the fixing block 607 leaves the inside of the mounting hole 2, so that the measuring probe 3 loses its limit and can be taken out for wear or replacement. When the length of the measuring probe 3 needs to be adjusted, insert the measuring probe 3 into the inside of the mounting hole 2, push the measuring probe 3 to the left, retain the length of the measuring probe 3 outside as needed, rotate the handle 7 in the opposite direction, and through the adjustment mechanism 6, move the fixing block 607 into the inside of the mounting hole 2 to contact the measuring probe 3 and limit it. At the same time, the insertion rod 686 enters the inside of the outer slot 685 to limit the fixing block 607 a second time, thus completing the adjustment of the length of the measuring probe 3.

[0033] In summary, this replaceable measuring arm probe, through the setting of a set screw groove 4, a set screw 5, and an adjustment mechanism 6, allows for easy replacement of the measuring probe 3. When the measuring probe 3 needs to be replaced, the set screw 5 is rotated outwards, disengaging from the set screw groove 4. Then, the handle 10 is pulled to the right, causing the connecting arm 11 to drive the insertion rod 686 out of the slot 685. Rotating the handle 7 causes the drive rod 602 and the drive gear 603 to rotate, which in turn drives the driven gear 605 and the adjustment rod 604 to rotate. This causes the moving seat 606 to move the fixing block 607 outwards through the first and second through holes, positioning the fixing block 607 in its inner slot 685, corresponding to the insertion rod 686. Releasing the handle 10 allows the spring 683 to rebound using its elastic potential energy, driving the insertion rod 686 into the slot 685, thus limiting the fixing block 607. At this point, the measuring probe 3 can be removed from the mounting hole 2 for grinding and replacement, significantly saving costs and making it more convenient to use.

[0034] Furthermore, by setting the adjustment mechanism 6, when it is necessary to adjust the length of the measuring probe 3, the measuring probe 3 is inserted into the mounting hole 2, and the measuring probe 3 is pushed to the left. The length of the measuring probe 3 outside is retained as needed. Then, the handle 7 is rotated in the opposite direction, which drives the drive rod 602 and the drive gear 603 to rotate, which in turn drives the driven gear 605 and the adjustment rod 604 to rotate. This causes the moving seat 606 to drive the fixing block 607 to move inward through the first and second through holes to the inside of the mounting hole 2 to contact the measuring probe 3 and limit its movement. At the same time, the insertion rod 686 enters the inside of the outer slot 685 to limit the fixing block 607 a second time, thus completing the adjustment of the length of the measuring probe 3. This solves the problem in the prior art that the probe will wear out after a period of use and needs to be replaced along with the clamp, and the length of the probe cannot be adjusted as needed.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A probe for a changeable measuring arm, comprising a chuck (1), characterised in that: The inside of the chuck (1) is provided with a mounting hole (2), the inside of the mounting hole (2) movably installs a measuring probe (3), the top of the chuck (1) is provided with a jackscrew groove (4), the inside of the jackscrew groove (4) is provided with a jackscrew (5), the outer surface of the chuck (1) is provided with an adjusting mechanism (6). The adjusting mechanism (6) comprises a first housing (601), a drive rod (602), a driving gear (603), an adjusting rod (604), a driven gear (605), a moving seat (606), a fixed block (607) and a limiting assembly (608), the upper and lower sides of the outer surface of the chuck (1) are fixedly installed with the first housing (601), the inside of the first housing (601) is provided with the drive rod (602), the outer surface of the drive rod (602) is fixedly installed with the driving gear (603), the inside of the first housing (601) is provided with the adjusting rod (604), the outer surface of the adjusting rod (604) is fixedly installed with the driven gear (605), the outer surface of the adjusting rod (604) is provided with the moving seat (606), the right side of the moving seat (606) is fixedly connected with the fixed block (607), and the outer surface of the first housing (601) is provided with the limiting assembly (608). The limiting assembly (608) comprises a rectangular box (681), a support (682), a spring (683), a sliding sleeve (684), a slot (685) and a plug rod (686), the right side of the first housing (601) is fixedly installed with the rectangular box (681), the left and right side inner walls of the rectangular box (681) are fixedly connected with the support (682), the outer surface of the support (682) is sleeved with the spring (683), the outer surface of the support (682) is slidably connected with the sliding sleeve (684), the outer surface of the fixed block (607) is provided with the slot (685), and the inside of the slot (685) is provided with the plug rod (686). The drive rod (602) is horizontally arranged, the adjusting rod (604) is vertically arranged, bearings are arranged at the connecting positions of the drive rod (602) and the adjusting rod (604) and the inner walls of the first housing (601), and the outer surfaces of the drive rod (602) and the adjusting rod (604) are in interference fit with the inner rings of the bearings. The left side inner wall of the first housing (601) is fixedly installed with a guide frame (8), the vertical part of the guide frame (8) is slidably connected with a guide seat (9), and the right side of the guide seat (9) is fixedly connected with the left side of the fixed block (607).

2. The interchangeable measurement arm measurement probe of claim 1, wherein: The right end of the drive rod (602) penetrates through the first housing (601) and extends to the outside of the first housing (601), the right side of the drive rod (602) is fixedly installed with a rotating handle (7), and the outer surface of the rotating handle (7) is provided with anti-skid lines.

3. The interchangeable measurement arm measurement probe of claim 1, wherein: The outer surface of the adjusting rod (604) and the inner wall of the moving seat (606) are provided with threads, the adjusting rod (604) is in threaded connection with the moving seat (606), and the driving gear (603) and the driven gear (605) are all conical gears and are in mesh with each other.

4. The interchangeable measurement arm measurement probe of claim 1, wherein: Two sides of the first shell (601) adjacent to each other are provided with first through holes, and the upper and lower sides of the outer surface of the chuck (1) are provided with second through holes, which are in communication with the mounting holes, and the fixed block (607) extends to the inside of the mounting hole through the first through hole and the second through hole.

5. The interchangeable measuring arm measurement probe of claim 2, wherein: The top of the rectangular box (681) is provided with a first sliding hole, the top of the sliding sleeve (684) is fixedly connected with a handle (10), the top of the handle (10) extends to the outside of the rectangular box (681) through the first sliding hole, the bottom of the rectangular box (681) is provided with a second sliding hole, the bottom of the sliding sleeve (684) is fixedly connected with a connecting arm (11), the bottom end of the connecting arm (11) extends to the outside of the rectangular box (681) through the second sliding hole, and the bottom of the connecting arm (11) is fixedly connected with the top of the inserting rod (686).

6. The interchangeable measurement arm measurement probe of claim 2, wherein: The right side of the first shell (601) is provided with a third through hole, the inserting rod (686) extends to the inside of the first shell (601) through the third through hole, the number of the slot (685) on the outer surface of the fixed block (607) is two, and the inserting rod (686) and the slot (685) are mutually clamped.

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