Magnetic gauge stand with fixed torque value

Abstract

The utility model discloses a magnetometer stand with a fixed torque value. The magnetometer stand comprises a main body seat; a positioning screw shaft; the knob mechanism is spirally connected to the positioning screw shaft; the first universal joint is arranged at the end part of the first support arm, and the second universal joint is arranged at the end part of the second support arm; when the knob mechanism is screwed to enable the positioning screw shaft to move axially, the first positioning ring pushes the first ejector rod to move axially, and the second positioning ring pushes the second ejector rod to move axially, so that the first universal joint and the second universal joint are driven to be locked. According to the utility model, the first positioning ring and the second positioning ring are driven to move oppositely through the positioning screw shaft, the first push rod and the second push rod are pushed to move towards two sides along the vertical direction of the positioning screw shaft respectively, the first universal joint and the second universal joint are locked, the precision of the magnetic gauge stand is ensured, the structure is simple, and the cost is low. The magnetic gauge stand can be popularized and applied to various magnetic gauge stand devices.

Description

Technical fields:

[0001] This utility model relates to the field of mechanical manufacturing technology, and specifically to a magnetic gauge holder with a fixed torque value. Background technology:

[0002] Magnetic dial indicator holders are widely used testing tools in the machine manufacturing industry, commonly used to hold dial indicators, lever indicators, and other measuring tools. Magnetic dial indicator holders play an important role in scientific research in various machine tools, research institutions, and universities.

[0003] Currently, some magnetic gauge holders on the market can clamp the aforementioned measuring tools. For example, Chinese utility model patent application CN209355806 U discloses a multi-purpose magnetic gauge holder, which includes: a magnetic gauge holder, a fixed gauge clamp, a vertical rod, a connecting short rod, a connecting long rod, and a dial indicator. There are two magnetic gauge holders and two dial indicators, while the fixed gauge clamp, vertical rod, connecting short rod, and connecting long rod are combined into one unit. The fixed gauge clamp and vertical rod are fixed to the magnetic base. It can achieve two working modes through adjustment: it can be used to check the concentricity of the equipment shaft alignment, and it can also detect the bending value, wobble value, flatness, and perpendicularity of the equipment.

[0004] However, this existing multi-purpose magnetic base still has the following shortcomings:

[0005] In this technical solution, a fixed watch clamp is formed by vertical and horizontal rods that are perpendicular to each other, and it has two working modes. However, since the vertical and horizontal rods need to be adjusted when switching working modes, long-term use can easily cause the vertical and horizontal rods to loosen and become unable to be tightened, resulting in loss of accuracy of the magnetic watch holder or even scrapping.

[0006] In view of the above, the inventors propose the following technical solution. Utility Model Content:

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and provide a magnetic gauge holder with a fixed torque value.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a magnetic gauge base with fixed torque value, comprising: a main body base, wherein the main body base has a first through hole in the vertical direction, and a first support arm and a second support arm are respectively provided on both sides of the main body base, wherein a first push rod and a second push rod are respectively inserted into the first support arm and the second support arm; a positioning screw shaft, which is inserted into the first through hole, and the positioning screw shaft is formed with a first positioning ring for pushing the first push rod, and the positioning screw shaft is provided with a second positioning ring for pushing the second push rod; a knob mechanism, which is helically connected to the positioning screw shaft; a first universal joint and a second universal joint, wherein the first universal joint is provided at the end of the first support arm and the second universal joint is provided at the end of the second support arm; when the knob mechanism is turned to move the positioning screw shaft axially, the first positioning ring pushes the first push rod to move axially, and the second positioning ring pushes the second push rod to move axially, so as to lock the first universal joint and the second universal joint.

[0009] Furthermore, in the above technical solution, the first universal joint includes: a first universal locking sleeve sleeved on the end of the first support arm and a first universal rod limited by the first universal locking sleeve, wherein the first universal rod is formed with a first ball head for abutting against the first top rod, and the first universal locking sleeve is provided with a first universal hole for limiting the first ball head.

[0010] Furthermore, in the above technical solution, the second universal joint includes: a second universal locking sleeve sleeved on the end of the second support arm and a second universal rod limited by the second universal locking sleeve, wherein the second universal rod is formed with a second ball head for abutting against the second top rod, and the second universal locking sleeve is provided with a second universal hole for limiting the second ball head.

[0011] Furthermore, in the above technical solution, one end of the first push rod is formed with a first inclined surface for abutting against the first positioning ring, and correspondingly, the first positioning ring is formed with a first pushing surface; the other end of the first push rod is formed with a first recess for abutting against the first ball head.

[0012] Furthermore, in the above technical solution, one end of the second push rod is formed with a second inclined surface for abutting against the second positioning ring, and correspondingly, the second positioning ring is formed with a second pushing surface; the other end of the second push rod is formed with a second recess for abutting against the second ball head.

[0013] Furthermore, in the above technical solution, the knob mechanism includes: a sleeve, a first geared disc disposed inside the sleeve and helically connected to the positioning screw shaft, a locking knob helically connected to the sleeve, a second geared disc disposed inside the locking knob and meshing with the first geared disc, and a spring disposed inside the locking knob and pushing downward against the second geared disc, wherein the second geared disc has a spring-locking portion protruding for the spring to be fitted.

[0014] Furthermore, in the above technical solution, the second gear plate has a second meshing tooth portion formed on it, and correspondingly, the first gear plate has a first meshing tooth portion formed on it; the locking knob has a knob cavity, and the side wall of the knob cavity has several guide grooves formed in the vertical direction, and correspondingly, the second gear plate has several guide ridges protruding from it; the spring is disposed in the knob cavity and continuously pushes against the second gear plate so that the second meshing tooth portion and the first meshing tooth portion remain engaged.

[0015] Furthermore, in the above technical solution, a magnetic base for clamping an external measuring instrument is connected to the first universal joint, and the magnetic base is provided with a base handle for adjusting the clamping force.

[0016] After adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: In this utility model, the first positioning ring and the second positioning ring are driven to move in opposite directions by the positioning screw shaft, and the first push rod and the second push rod are pushed to move to both sides along the vertical direction of the positioning screw shaft, thereby locking the first universal joint and the second universal joint. This effectively solves the problem of loosening and inability to tighten properly, ensures the accuracy of the magnetic base, and has a simple structure that can be widely applied to various magnetic base devices. In addition, compared with the existing structure, the connection between the first arm and the magnetic base in this utility model uses the first universal joint, which can meet more angle swings, improve applicability, and is easy to operate. Attached image description:

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0019] Figure 3 yes Figure 2 Enlarged view at point A;

[0020] Figure 4 This is a cross-sectional schematic diagram of the first push rod and the second push rod in this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the first universal joint in this utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the second universal joint in this utility model;

[0023] Figure 7 This is an assembly diagram of the first toothed disc and the second toothed disc in this utility model;

[0024] Figure 8 This is a schematic diagram of the locking knob in this utility model;

[0025] Figure 9 This is a schematic diagram of the assembly of the positioning screw shaft and the second positioning ring in this utility model. Detailed implementation method:

[0026] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0027] See Figures 1 to 9 The image shows a magnetic gauge base with a fixed torque value, comprising: a main body 1, which has a first through hole 10 in the vertical direction; a first support arm 11 and a second support arm 12 respectively provided on both sides of the main body 1; a first push rod 110 and a second push rod 120 respectively passing through the first support arm 11 and the second support arm 12; and a positioning screw shaft 2, which passes through the first through hole 10 and has a first positioning ring 21 for pushing the first push rod 110; the positioning screw shaft 2 is also provided with a positioning ring for pushing the second push rod 120. The second positioning ring 22 is pushed against the positioning screw shaft 2; the knob mechanism 3 is helically connected to the positioning screw shaft 2; the first universal joint 41 and the second universal joint 42 are provided at the end of the first support arm 11 and the second universal joint 42 are provided at the end of the second support arm 12; when the knob mechanism 3 is turned to move the positioning screw shaft 2 axially, the first positioning ring 21 pushes the first push rod 110 to move axially, and the second positioning ring 22 pushes the second push rod 120 to move axially, so as to drive the first universal joint 41 and the second universal joint 42 to lock.

[0028] In this invention, the positioning screw shaft 2 drives the first positioning ring 21 and the second positioning ring 22 to move in opposite directions, pushing the first push rod 110 and the second push rod 120 to move to both sides along the vertical direction of the positioning screw shaft 2, thereby locking the first universal joint 41 and the second universal joint 42. This effectively solves the problem of loosening and inability to tighten properly, ensuring the accuracy of the magnetic base. Furthermore, the structure is simple and can be widely applied to various magnetic base devices. In addition, compared with existing structures, the connection between the first support arm 11 and the magnetic base 5 in this invention uses the first universal joint 41, which can accommodate more angles of swing, improving applicability and ease of operation.

[0029] The first universal joint 41 includes: a first universal locking sleeve 411 sleeved on the end of the first support arm 11 and a first universal rod 412 limited by the first universal locking sleeve 411, wherein the first universal rod 412 is formed with a first ball head 413 for abutting against the first top rod 110, and the first universal locking sleeve 411 is provided with a first universal hole 414 for limiting the first ball head 413. The second universal joint 42 includes: a second universal locking sleeve 421 sleeved on the end of the second support arm 12 and a second universal rod 422 limited by the second universal locking sleeve 421, wherein the second universal rod 422 is formed with a second ball head 423 for abutting against the second top rod 120, and the second universal locking sleeve 421 is provided with a second universal hole 424 for limiting the second ball head 423. Here, compared with the existing structure, the connection between the first arm 11 and the magnetic base 5 in this utility model adopts a first universal joint 41, and the end of the second arm 11 adopts a second universal joint 41, which can meet the swing at any angle, improve the applicability, and is easy to operate.

[0030] The first push rod 110 has a first inclined surface 111 formed at one end for abutting against the first positioning ring 21, and correspondingly, a first pushing surface 211 is formed on the first positioning ring 21; the other end of the first push rod 110 has a first recess 112 formed for abutting against the first ball head 413. The second push rod 120 has a second inclined surface 121 formed at one end for abutting against the second positioning ring 22, and correspondingly, a second pushing surface 221 is formed on the second positioning ring 22; the other end of the second push rod 120 has a second recess 122 formed for abutting against the second ball head 423. Here, in addition, when the knob mechanism 3 is turned to make the first positioning ring 21 and the second positioning ring 22 move in opposite directions, the first pushing surface 211 of the first positioning ring 21 pushes against the first inclined surface 111, causing the first push rod 110 to move axially. Furthermore, the first recess 112 of the first push rod 110 abuts against the first ball head 413 until the first universal joint 41 is locked. The locking process of the second universal joint 42 is similar to the locking process of the first universal joint 41, and will not be described in detail here.

[0031] The knob mechanism 3 includes: a sleeve 31, a first gear 32 disposed inside the sleeve 31 and helically connected to the positioning screw shaft 2, a locking knob 33 helically connected to the sleeve 31, a second gear 34 disposed inside the locking knob 33 and meshing with the first gear 32, and a spring 35 disposed inside the locking knob 33 and pushing downward against the second gear 34, wherein the second gear 34 has a spring locking part 341 protruding from it for the spring 35 to be fitted. The second gear disc (34) has a second meshing tooth portion (342) formed on it, and correspondingly, the first gear disc 32 has a first meshing tooth portion 321 formed on it. The locking knob 33 has a knob cavity 331, and the side wall of the knob cavity 331 has several guide grooves 3311 formed in the vertical direction. Correspondingly, the second gear disc 34 has several guide ridges 344 protruding from it. The spring 35 is disposed in the knob cavity 331 and continuously pushes against the second gear disc 34 so that the second meshing tooth portion 342 and the first meshing tooth portion 321 are engaged. Here, combined with Figure 3 and Figure 7 As shown, when the locking knob 33 is turned, the second gear 34 is driven to rotate, which in turn drives the first gear 32 to rotate, thereby driving the positioning screw shaft 2 to move axially, thus locking the first universal joint 41 and the second universal joint 42. After being fully locked, the first gear 32 will stop rotating. If the locking knob 33 is turned again, the second gear 34 will be lifted and disengaged by the first meshing part 321, and will mesh with the first gear 32 due to the squeezing force of the spring 35. The continuous impact between the teeth will make a "click-click-click" sound to indicate to the operator that it has been locked in place and can be stopped.

[0032] A magnetic base 5 for clamping an external measuring instrument is connected to the first universal joint 41. The magnetic base 5 is provided with a base handle 51 for adjusting the clamping force. The first universal rod 412 of the first universal joint 41 has a protruding locking protrusion 4121 for connecting with the magnetic base 5, and the magnetic base 5 has a recessed locking groove 52. The locking protrusion 4121 is correspondingly locked into the locking groove 52 to ensure a secure connection between the magnetic base 5 and the first universal joint 41.

[0033] In summary, in this invention, the positioning screw shaft 2 drives the first positioning ring 21 and the second positioning ring 22 to move in opposite directions, pushing the first push rod 110 and the second push rod 120 to move to both sides along the vertical direction of the positioning screw shaft 2, thereby locking the first universal joint 41 and the second universal joint 42. This effectively solves the problem of loosening and inability to tighten properly, ensuring the accuracy of the magnetic base. Furthermore, the structure is simple and can be widely applied to various magnetic base devices. In addition, compared with existing structures, the connection between the first support arm 11 and the magnetic base 5 in this invention uses the first universal joint 41, which can accommodate more angular swings, improving applicability and ease of operation.

[0034] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A magnetic gauge base with a fixed torque value, characterized in that, include: The main body (1) has a first through hole (10) in the vertical direction. The main body (1) has a first support arm (11) and a second support arm (12) on both sides. The first support arm (11) and the second support arm (12) are respectively inserted into the first support arm (11) and the second support arm (12). The positioning screw shaft (2) is inserted into the first through hole (10), and the positioning screw shaft (2) is formed with a first positioning ring (21) for pushing the first push rod (110), and the positioning screw shaft (2) is provided with a second positioning ring (22) for pushing the second push rod (120). A knob mechanism (3) is helically connected to the positioning screw shaft (2); The first universal joint (41) and the second universal joint (42) are provided at the end of the first support arm (11) and the second universal joint (42) is provided at the end of the second support arm (12). When the knob mechanism (3) is turned to move the positioning screw shaft (2) axially, the first positioning ring (21) pushes the first push rod (110) to move axially, and the second positioning ring (22) pushes the second push rod (120) to move axially, so as to drive the first universal joint (41) and the second universal joint (42) to lock.

2. The magnetic base for a fixed torque value according to claim 1, characterized in that: The first universal joint (41) includes: a first universal locking sleeve (411) sleeved on the end of the first support arm (11) and a first universal rod (412) limited by the first universal locking sleeve (411), wherein the first universal rod (412) is formed with a first ball head (413) for abutting against the first top rod (110), and the first universal locking sleeve (411) is provided with a first universal hole (414) for limiting the first ball head (413).

3. A magnetic base for a fixed torque value according to claim 1, characterized in that: The second universal joint (42) includes: a second universal locking sleeve (421) sleeved on the end of the second support arm (12) and a second universal rod (422) limited by the second universal locking sleeve (421), wherein the second universal rod (422) is formed with a second ball head (423) for abutting against the second top rod (120), and the second universal locking sleeve (421) is provided with a second universal hole (424) for limiting the second ball head (423).

4. A magnetic base for a fixed torque value according to claim 2, characterized in that: One end of the first push rod (110) is formed with a first inclined surface (111) for abutting against the first positioning ring (21), and correspondingly, the first positioning ring (21) is formed with a first pushing surface (211); the other end of the first push rod (110) is formed with a first recess (112) for abutting against the first ball head (413).

5. A magnetic base for a fixed torque value according to claim 3, characterized in that: One end of the second push rod (120) is formed with a second inclined surface (121) for abutting against the second positioning ring (22), and correspondingly, the second positioning ring (22) is formed with a second pushing surface (221); the other end of the second push rod (120) is formed with a second recess (122) for abutting against the second ball head (423).

6. A magnetic base for a fixed torque value according to any one of claims 1-5, characterized in that: The knob mechanism (3) includes: a sleeve (31), a first gear disc (32) disposed inside the sleeve (31) and helically connected to the positioning screw shaft (2), a locking knob (33) helically connected to the sleeve (31), a second gear disc (34) disposed inside the locking knob (33) and meshing with the first gear disc (32), and a spring (35) disposed inside the locking knob (33) and pushing downward against the second gear disc (34), wherein the second gear disc (34) has a spring locking part (341) protruding out for the spring (35) to be fitted.

7. A magnetic base for a fixed torque value according to claim 6, characterized in that: The second gear plate (34) has a second meshing tooth (342) formed on it, and the first gear plate (32) has a first meshing tooth (321) formed on it. The locking knob (33) has a knob cavity (331) with several guide grooves (3311) formed on the side wall of the knob cavity (331) in the vertical direction. Correspondingly, the second gear plate (34) has several guide ridges (344) formed on it. The spring (35) is disposed in the knob cavity (331) and continuously pushes against the second gear plate (34) so ​​that the second meshing tooth (342) and the first meshing tooth (321) are engaged.

8. A magnetic base for a fixed torque value according to claim 7, characterized in that: The first universal joint (41) is connected to a magnetic base (5) for clamping an external measuring instrument, and the magnetic base (5) is provided with a base handle (51) for adjusting the clamping force.

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