Special full-automatic Rockwell hardness tester for steel cylinder

Abstract

The utility model discloses a special full-automatic Rockwell hardness tester for a steel cylinder, which belongs to the technical field of Rockwell hardness testers, and comprises a hardness tester main body, a bearing base is arranged on the hardness tester main body, a cavity is formed in the bearing base, a bidirectional threaded rod is rotatably mounted on the inner wall of the cavity, and the bidirectional threaded rod is connected with the bearing base. One end of the bidirectional threaded rod extends out of the bearing base and is fixedly provided with a knob; the bidirectional threaded rod is arranged to be matched with the external protection plate and the internal clamping plates for use, relative movement of the internal clamping plates on the two sides can be achieved through rotation of the bidirectional threaded rod, the internal clamping plates fix and clamp the steel cylinder through the rolling wheels, and the phenomenon that the steel cylinder is not stably fixed due to the fact that only magnetic adsorption is utilized is effectively avoided; and the internal clamping plate can horizontally slide relative to the external protection plate to realize the horizontal position adjustment of the steel cylinder, and the rotation position adjustment of the steel cylinder is realized by matching with the screwing-in and screwing-out of the fixing bolt, so that the detection operation of different point positions can be carried out on the steel cylinder on the premise of fixation.

Description

Technical Field

[0001] This utility model belongs to the technical field of Rockwell hardness testers, specifically relating to a fully automatic Rockwell hardness tester for steel cylinders. Background Technology

[0002] The Rockwell hardness tester is the world's first Rockwell hardness tester designed based on the Rockwell hardness test principle. It can test the hardness of metals by only requiring one-sided contact with the sample. It relies on magnetic force to attract the Rockwell hardness tester probe to the steel surface, without the need for sample support. The test accuracy meets the standards GB / T230 and ISO6508, and is no less than that of benchtop Rockwell hardness testers.

[0003] The hardness tester is fixed to the surface of a steel workpiece using a magnetic chuck. No support, sampling, or workpiece movement is required; testing can be completed with only one side in contact.

[0004] Existing Rockwell hardness testers lack effective fixing mechanisms when testing cylindrical workpieces. Even with magnetic adsorption, the adsorption and fixing effect is poor, especially when testing steel cylinders. The adsorption and fixing stability of the steel cylinders is poor, so displacement is easy to occur, which affects the smooth progress of the testing operation. Moreover, it is inconvenient to operate when testing different positions. Utility Model Content

[0005] The purpose of this invention is to provide a fully automatic Rockwell hardness tester specifically for steel cylinders, in order to solve the problems mentioned in the background art. Existing Rockwell hardness testers lack an effective fixing mechanism when testing cylindrical workpieces. Even with magnetic adsorption fixing, the adsorption and fixing effect is poor, especially when testing steel cylinders. The adsorption and fixing stability of the steel cylinders is poor, so displacement is easy to occur, which affects the smooth progress of the testing operation. Furthermore, it is inconvenient to operate when testing at different positions.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A fully automatic Rockwell hardness tester for steel cylinders, comprising a hardness tester body, a support base on the hardness tester body, a cavity inside the support base, and a bidirectional threaded rod rotatably mounted on the inner wall of the cavity. One end of the bidirectional threaded rod extends out of the support base and is fixedly mounted with a knob. Threaded plates are threaded onto the outer surfaces of both ends of the threaded rod. Connecting plates are fixedly mounted at both ends of the threaded plates. A channel communicating with the cavity is opened on the support base. The connecting plates extend out of the support base through the channel. A mounting bracket is fixedly mounted between the two connecting plates at both ends of the same threaded plate. An outer protective plate is fixedly mounted on the opposite surfaces of the two mounting brackets. An inner locking plate is slidably arranged on the opposite surfaces of the two outer protective plates. A mounting seat is fixedly mounted on the outer surface of the inner locking plate. A locking rod is slidably inserted into the mounting seat. A handle is fixedly mounted on one end of the locking rod. Several locking grooves are opened on the surface of the outer protective plate. The other end of the locking rod cooperates with the locking grooves. Several fixing bolts are threaded onto the inner locking plate.

[0007] The above solution utilizes a bidirectional threaded rod in conjunction with an external protective plate and an internal clamping plate. The rotation of the bidirectional threaded rod enables relative movement of the internal clamping plates on both sides. The internal clamping plates use rollers to securely fasten the gas cylinder, effectively avoiding the instability that can occur when relying solely on magnetic adsorption. Furthermore, the internal clamping plates can slide horizontally relative to the external protective plate to adjust the horizontal position of the gas cylinder. By tightening and loosening the fixing bolts, the rotational position of the gas cylinder can be adjusted. This allows for the inspection of the gas cylinder at different points while maintaining its fixed position.

[0008] In a preferred embodiment, a plurality of guide rods are fixedly installed on the inner wall of the cavity inside the bearing base, and the threaded plate is slidably installed on the outer surface of the plurality of guide rods.

[0009] With the above scheme, when the bidirectional threaded rod rotates to drive the threaded plate to move, the threaded plate will slide on the surface of the guide rod, thereby using the guide rod to support the movement of the threaded plate, improving the stability of the movement and avoiding swaying.

[0010] In a preferred embodiment, a limiting ring is fixedly installed on the outer surface of the locking rod. The limiting ring is located inside the mounting base, and a spring is provided between the limiting ring and the mounting base, with the spring sleeved on the outside of the locking rod.

[0011] By using the above solution, a limiting ring is used in conjunction with a spring. The limiting ring prevents the locking bar from detaching from the mounting base when it moves, thus providing a limiting effect. When the locking bar moves out of the lock groove, the limiting ring moves synchronously and compresses the spring to deform. Therefore, the spring force can be used to drive the locking bar to quickly return to the lock groove and insert it into the lock groove, improving the convenience of locking operation.

[0012] In a preferred embodiment, the limiting ring has a notch, and a blocking block is fixedly installed on the inner wall of the mounting base. The blocking block is used in conjunction with the notch.

[0013] Using the above scheme, the notch is used in conjunction with the blocking block. When the locking rod moves away from the locking groove, the limiting ring can move to the other side of the blocking block through the notch. Then, the locking rod is rotated to make the notch on the limiting ring misalign with the blocking block. At this time, the blocking block can block the limiting ring, preventing the limiting ring and the locking rod from accidentally resetting and ensuring the stability of use.

[0014] In a preferred embodiment, the inner wall of the outer protective plate is provided with a sliding groove, and a sliding strip is fixedly installed on the outer surface of the inner plate, the sliding strip being slidably installed on the inner wall of the sliding groove.

[0015] By adopting the above scheme, the sliding of the slider within the groove can ensure good stability of the movement of the internal retaining plate relative to the external protective plate.

[0016] In a preferred embodiment, both the cross-sectional shape of the slide bar and the cross-sectional shape of the slide groove are set to trapezoidal.

[0017] By adopting the above solution and setting the cross-section of the slide bar and slide groove to a trapezoidal shape, the internal locking plate can be prevented from detaching from the external protective plate while ensuring that the internal locking plate slides relative to the external protective plate.

[0018] In a preferred embodiment, a plurality of rollers are fixedly installed on the inner wall of the internal plate, and the rollers on two internal plates are arranged opposite to each other.

[0019] By adopting the above solution, the rollers can be set up to allow the cylinder to rotate when the fixing bolts are unscrewed, effectively avoiding the large frictional wear that would occur when the cylinder rotates in direct contact with the internal clamping plate.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This fully automatic Rockwell hardness tester for gas cylinders uses a bidirectional threaded rod in conjunction with an external protective plate and an internal clamping plate. The rotation of the bidirectional threaded rod enables relative movement of the two internal clamping plates, which are secured to the gas cylinder via rollers. This effectively avoids the instability that can occur when relying solely on magnetic adsorption. Furthermore, the internal clamping plate can slide horizontally relative to the external protective plate to adjust the horizontal position of the gas cylinder. By tightening and loosening the fixing bolts, the rotational position of the gas cylinder can be adjusted. This allows for testing at different points on the gas cylinder while maintaining a fixed position. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the support base of this utility model;

[0024] Figure 3 This is a structural schematic diagram of the cross-section of the support base of this utility model;

[0025] Figure 4 This is a schematic diagram of the exploded structure of the outer protective plate and the inner retaining plate of this utility model;

[0026] Figure 5 This utility model Figure 4 A structural diagram from another angle;

[0027] Figure 6 This is a schematic diagram of the structure of the mounting base of this utility model.

[0028] In the diagram: 1. Hardness tester body; 2. Support base; 3. Two-way threaded rod; 4. Threaded plate; 5. Connecting plate; 6. Mounting bracket; 7. Outer protective plate; 8. Inner clamping plate; 9. Mounting seat; 10. Locking rod; 11. Handle; 12. Fixing bolt; 13. Guide rod; 14. Limiting ring; 15. Spring; 16. Blocking block; 17. Sliding bar; 18. Roller. Detailed Implementation

[0029] Please see Figure 1-6 This utility model provides a fully automatic Rockwell hardness tester for steel cylinders, including a hardness tester body 1, a support base 2 on the hardness tester body 1, a cavity inside the support base 2, and a bidirectional threaded rod 3 rotatably mounted on the inner wall of the cavity. One end of the bidirectional threaded rod 3 extends out of the support base 2 and is fixedly mounted with a knob. Threaded plates 4 are threaded onto the outer surfaces of both ends of the threaded rod 3. Connecting plates 5 are fixedly mounted at both ends of the threaded plates 4. The support base 2 has a channel communicating with the cavity, and the connecting plates 5 extend out of the support base 2 through the channel. The base 2 has a mounting bracket 6 fixedly installed between two connecting plates 5 at both ends of the same threaded plate 4. The opposite surfaces of the two mounting brackets 6 are fixedly installed with external protective plates 7. The opposite surfaces of the two external protective plates 7 are slidably provided with internal retaining plates 8. The outer surface of the internal retaining plates 8 is fixedly installed with a mounting seat 9. A locking rod 10 is slidably inserted into the mounting seat 9. A handle 11 is fixedly installed at one end of the locking rod 10. Several locking grooves are opened on the surface of the external protective plates 7. The other end of the locking rod 10 is used in conjunction with the locking grooves. Several fixing bolts 12 are threaded on the internal retaining plates 8.

[0030] By using a bidirectional threaded rod 3 in conjunction with an outer protective plate 7 and an inner clamping plate 8, the rotation of the bidirectional threaded rod 3 enables relative movement of the inner clamping plates 8 on both sides. The inner clamping plates 8 use rollers 18 to securely clamp the gas cylinder, effectively avoiding the unstable cylinder fixation that occurs when relying solely on magnetic adsorption. Furthermore, the inner clamping plates 8 can slide horizontally relative to the outer protective plate 7 to adjust the horizontal position of the gas cylinder. By screwing in and out the fixing bolts 12, the rotational position of the gas cylinder can be adjusted. Thus, under the premise of fixation, inspection operations can be performed on the gas cylinder at different points.

[0031] Several guide rods 13 are fixedly installed on the inner wall of the cavity inside the support base 2. The threaded plate 4 is slidably installed on the outer surface of the several guide rods 13. When the bidirectional threaded rod 3 rotates to drive the threaded plate 4 to move, the threaded plate 4 will slide on the surface of the guide rod 13, thereby using the guide rod 13 to support the movement of the threaded plate 4, improve the stability of movement, and avoid shaking.

[0032] A limiting ring 14 is fixedly installed on the outer surface of the locking rod 10. The limiting ring 14 is located inside the mounting base 9. A spring 15 is abutting between the limiting ring 14 and the mounting base 9. The spring 15 is sleeved on the outside of the locking rod 10. The limiting ring 14 works in conjunction with the spring 15. The setting of the limiting ring 14 can prevent the locking rod 10 from disengaging from the mounting base 9 when it moves, thus playing a limiting role. When the locking rod 10 moves out of the lock groove, the limiting ring 14 moves synchronously and squeezes the spring 15 to deform. Therefore, the elastic force of the spring 15 can be used to drive the locking rod 10 to quickly return to the lock groove and insert into the lock groove, improving the convenience of locking operation.

[0033] The limiting ring 14 has a notch, and the inner wall of the mounting base 9 is fixedly installed with a blocking block 16. The blocking block 16 works in conjunction with the notch. When the locking rod 10 moves away from the locking groove, the limiting ring 14 can move through the notch to the other side of the blocking block 16. Then, the locking rod 10 is rotated to make the notch on the limiting ring 14 misalign with the blocking block 16. At this time, the blocking block 16 can block the limiting ring 14, preventing the limiting ring 14 and the locking rod 10 from accidentally resetting and ensuring the stability of use.

[0034] The inner wall of the outer guard plate 7 is provided with a sliding groove, and the outer surface of the inner clamping plate 8 is fixedly installed with a sliding strip 17. The sliding strip 17 is slidably installed on the inner wall of the sliding groove. By using the sliding strip 17 to slide in the sliding groove, the movement stability of the inner clamping plate 8 relative to the outer guard plate 7 can be well guaranteed.

[0035] The cross-sectional shape of the slide bar 17 and the cross-sectional shape of the slide groove are both set to trapezoidal. By setting the cross-sections of the slide bar 17 and the slide groove to trapezoidal, the internal locking plate 8 can be prevented from detaching from the external guard plate 7 while ensuring that the internal locking plate 8 slides relative to the external guard plate 7.

[0036] Several rollers 18 are fixedly installed on the inner wall of the internal plate 8. The rollers 18 on the two internal plates 8 are arranged opposite each other. The setting of the rollers 18 can realize the rotation of the gas cylinder when the fixing bolt 12 is unscrewed, effectively avoiding the large frictional wear caused when the gas cylinder is in direct contact with the internal plate 8 during rotation.

[0037] In use, the cylinder to be tested is placed on the support base 2 between the two internal clamping plates 8. Turning the knob drives the bidirectional threaded rod 3 to rotate, which in turn drives the two threaded plates 4 closer together. This, in turn, drives the outer protective plates 7 on both sides closer together via the connecting plates 5 and connecting brackets on both sides, and further drives the internal clamping plates 8 on both sides closer together. The internal clamping plates 8 use rollers 18 to clamp and fix the cylinder. Then, the fixing bolts 12 are screwed in to further tighten and fix the cylinder. The hardness tester body 1 is then started for testing. After testing, different points can be tested. At this time, pulling the handle 11 drives the locking rod 10 to move and disengage from the locking groove. After the locking rod 10 disengages from the locking groove, the internal clamping plate 8 unlocks. At this time, the limiting ring 14 moves synchronously with the locking rod 10 and compresses the spring 15, deforming it. Simultaneously, the limiting ring 14 will... The cylinder moves through the notch to the other side of the blocking block 16, and then the handle 11 is turned so that the locking rod 10 drives the limiting ring 14 to rotate, so that the notch on the limiting ring 14 is misaligned with the blocking block 16. At this time, the blocking block 16 can prevent the limiting ring 14 and the locking rod 10 from accidentally resetting. Then, the internal locking plate 8 is operated to adjust the horizontal position, thereby driving the fixed cylinder to adjust the horizontal position. After adjustment, the handle 11 is turned so that the notch on the limiting ring 14 is aligned with the blocking block 16. At this time, the elastic force of the spring 15 will drive the locking rod 10 to reset and insert into the locking groove to lock the position of the internal locking plate 8. Then, the fixing bolt 12 is unscrewed. Due to the presence of the roller 18, the cylinder can be rotated horizontally to adjust its position. After adjustment, the fixing bolt 12 is screwed in to adjust the position of the cylinder, thereby enabling detection at different points.

Claims

1. A full automatic Rockwell hardness tester for steel bottle, characterized in that: The tester includes a hardness tester body (1), on which a support base (2) is provided. The support base (2) has an internal cavity, and a bidirectional threaded rod (3) is rotatably installed on the inner wall of the cavity. One end of the bidirectional threaded rod (3) extends out of the support base (2) and is fixedly mounted with a knob. Both ends of the two threads of the bidirectional threaded rod (3) are threaded with threaded plates (4). Both ends of the threaded plates (4) are fixedly mounted with connecting plates (5). The support base (2) has a channel communicating with the cavity. The connecting plates (5) extend out of the support base (2) through the channel. Both ends of the threaded plates (4) are connected to the cavity. A mounting bracket (6) is fixedly installed between two connecting plates (5). An outer guard plate (7) is fixedly installed on the opposite side of the two mounting brackets (6). An inner card plate (8) is slidably installed on the opposite side of the two outer guard plates (7). A mounting seat (9) is fixedly installed on the outer surface of the inner card plate (8). A locking rod (10) is slidably inserted on the mounting seat (9). A handle (11) is fixedly installed on one end of the locking rod (10). Several locking grooves are opened on the surface of the outer guard plate (7). The other end of the locking rod (10) is used in conjunction with the locking groove. Several fixing bolts (12) are threaded on the inner card plate (8).

2. The full-automatic Rockwell hardness tester for steel cylinders according to claim 1, characterized in that: The inner wall of the cavity of the bearing base (2) is fixedly installed with several guide rods (13), and the threaded plate (4) is slidably installed on the outer surface of the several guide rods (13).

3. The full-automatic Rockwell hardness tester for steel cylinders according to claim 1, characterized in that: A limiting ring (14) is fixedly installed on the outer surface of the locking rod (10). The limiting ring (14) is located inside the mounting base (9). A spring (15) is provided between the limiting ring (14) and the mounting base (9). The spring (15) is sleeved on the outside of the locking rod (10).

4. The full-automatic Rockwell hardness tester for steel cylinders according to claim 3, characterized in that: The limiting ring (14) has a notch, and the inner wall of the mounting base (9) is fixedly installed with a blocking block (16), which is used in conjunction with the notch.

5. The full-automatic Rockwell hardness tester for steel cylinders according to claim 1, characterized in that: The inner wall of the outer protective plate (7) is provided with a sliding groove, and the outer surface of the inner card plate (8) is fixedly installed with a sliding strip (17), which is slidably installed on the inner wall of the sliding groove.

6. The full-automatic Rockwell hardness tester for steel cylinders according to claim 5, characterized in that: The cross-sectional shape of the slide bar (17) and the cross-sectional shape of the slide groove are both set to trapezoidal.

7. The full-automatic Rockwell hardness tester for steel cylinders according to claim 1, characterized in that: The inner wall of the inner plate (8) is fixedly equipped with several rollers (18), and the rollers (18) on the two inner plates (8) are arranged opposite to each other.

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