Torsion spring rigidity testing device

Abstract

The utility model discloses a torsion spring rigidity testing device, which belongs to the field of torsion spring rigidity testing and comprises a body mechanism, a testing mechanism is mounted at the upper end of the body mechanism, an adjusting mechanism is movably connected to the inner end of the body mechanism, and the testing mechanism comprises a support frame. The outer end of the supporting frame is sleeved with a guide block, the outer side of the guide block is movably connected with a connecting frame, the lower portion of the connecting frame is movably connected with an abutting block, and clamping blocks which are symmetrically distributed are installed at the upper end of the abutting block; by arranging a pair of clamping blocks, the abutting block and the connecting frame can be conveniently connected, when the abutting block making contact with the spring is damaged and needs to be disassembled, the adjusting assembly is rotated, and the abutting block making contact with the spring end for a long time can be conveniently disassembled; therefore, the problem that the final test accuracy is affected by the large angle error between the test device and the spring due to damage is solved, and the practicability of the torsion spring rigidity test device is improved.

Description

Technical Field

[0001] The utility model relates to the field of torsion spring stiffness testing, in particular to a torsion spring stiffness testing device. Background Art

[0002] Torsion spring is one of the commonly used components in mechanical engineering, industrial industry and other fields. In order to ensure the quality of torsion spring, it is very important to test the torsion spring stiffness during torsion spring processing.

[0003] Chinese patent application number CN202021094383.0 provides a stiffness test device for cylindrical helical torsion springs. This solution only requires the spring to be tested to be placed on a column, and then the torsion plate is installed on the upper end of the column. The non-torsion section at the lower end of the spring is limited by a block. The torque wrench is used to rotate the torque plate, and the spring is rotated by pushing the screw. The torque plate rotation angle can be read with the pointer assembly. Combined with the torque wrench reading, the corresponding torque of the spring at different torsion angles can be obtained. The stiffness value of the tested spring is calculated and the qualified spring is judged. The device has a simple structure and is easy to operate, which helps to reduce equipment and testing costs.

[0004] The existing stiffness testing device has certain drawbacks when used. First, the contact friction between the torsion arm of the torsion structure of the stiffness testing device and the spring being tested during the torsion process causes long-term contact torsion, which makes it easy for the torsion arm to release the spring structure to be damaged. The large angle error between the damaged torsion arm and the spring affects the final test accuracy. For this reason, we propose a torsion spring stiffness testing device. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a torsion spring stiffness testing device. By setting a clamping block and an adjustment assembly, a pair of clamping blocks can conveniently connect the resist block to the connecting frame, and when the resist block contacting the spring is damaged and needs to be disassembled, the adjustment assembly is rotated, so that the resist block that has been in contact with the spring end for a long time can be easily disassembled, so that the test device will not be affected by the large angle error between the damage and the spring, thereby improving the practicality of the torsion spring stiffness testing device.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A torsion spring stiffness testing device comprises a main body mechanism, a testing mechanism is mounted on the upper end of the main body mechanism, and an adjusting mechanism is movably connected to the inner end of the main body mechanism;

[0008] The testing mechanism includes a support frame, the outer end of the support frame is provided with a guide block, the outer side of the guide block is movably connected to a connecting frame, the lower part of the connecting frame is movably connected to a stop block, the upper end of the stop block is installed with symmetrically distributed clamping blocks, the upper part of the clamping block is rotatably connected to an adjustment component, and the outer end of the adjustment component is provided with a moving block.

[0009] By installing the clamping block and adjusting the assembly, the practicability of the torsion spring stiffness testing device is improved.

[0010] Furthermore, the outer end of the moving block is hingedly connected to symmetrically distributed adjusting rods, and the other end of the adjusting rod away from the moving block is hingedly connected to a clamping block, and the clamping block is movably connected to the clamping block.

[0011] By installing the adjustment rod, the convenience of installation and disassembly between the structures is improved.

[0012] Furthermore, the bottom end of the clamping block is slidably connected to a guide assembly.

[0013] By installing a guide assembly, which is composed of a slider and a slide rod, the clamping block is restricted and guided when it moves, thereby preventing the clamping block from deviating and falling off.

[0014] Furthermore, a reinforcement column is installed on the outer end of the guide block, and a torque disc is installed on the outer end of the reinforcement column.

[0015] By installing the reinforcement column, the reinforcement column can form a reinforcement structure at the outer end of the torque plate, making the torque plate stable in use.

[0016] Furthermore, the main body mechanism includes a test bench, an electric torque bench is installed at the upper end of the test bench, and a column is installed at the inner end of the electric torque bench.

[0017] By installing the column, the column can facilitate the installation and assembly of the torsion spring and facilitate the testing work.

[0018] Furthermore, a stop column is movably connected to the outer side of the column, and a limit ring is movably connected to the upper side of the stop column.

[0019] By installing the limit ring, the limit ring can limit the outer end of the non-torsion section at the other end of the torsion spring, so that the torsion spring can perform the test torsion work with increased effect.

[0020] Furthermore, the inner end of the blocking column is slidably connected to an adjustment rod, the inner end of the adjustment rod is slidably connected to a symmetrically distributed positioning rod, the positioning rod is located at the inner end of the blocking column, and the outer end of the positioning rod is sleeved with an adjustment component.

[0021] By installing the positioning rod and the adjustment component, the adaptation effect of the limit ring is improved.

[0022] Furthermore, a positioning head is installed at the front end of each positioning rod, and a plurality of symmetrically distributed positioning grooves are formed at the inner end of each blocking column.

[0023] By installing the positioning head, the positioning head can be snapped into the inner end of the positioning groove, so that the blocking column and the adjustment rod are positioned stably.

[0024] In summary, the present invention has the following beneficial effects:

[0025] 1. By setting a clamping block and an adjustment assembly, a pair of clamping blocks can conveniently connect the block to the connecting frame. When the block contacting the spring is damaged and needs to be removed, the adjustment assembly is rotated to facilitate the removal of the block that has been in contact with the spring end for a long time. This prevents the test device from affecting the final test accuracy due to a large angular error between the damage and the spring, thereby improving the practicality of the torsion spring stiffness test device.

[0026] 2. By setting the adjustment rod, a pair of adjustment rods can produce angle adjustment under the force of the moving block, which can drive the external clamping block to adjust, so that the clamping block and the clamping block can be easily positioned and separated, which improves the convenience of installation and disassembly between the structures;

[0027] 3. By setting the positioning rods and adjustment components, when the limit ring needs to be adjusted, a pair of positioning rods are pulled, and the positioning rods cooperate with the external spring ring and the guide ring to adjust the position, so that the positioning head is positioned at the inner end of different positioning grooves, so that the limit ring can be adjusted in position, thereby improving the adaptation effect of the limit ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of the overall structure of this embodiment;

[0029] Figure 2 Schematic diagram of the three-dimensional structure of the support frame in this embodiment;

[0030] Figure 3 1 is a schematic structural diagram of a cross section of the connecting frame in this embodiment;

[0031] Figure 4 In this embodiment Figure 3 A schematic diagram of the structure with an enlarged plane at point A;

[0032] Figure 5 Schematic diagram of the cross section of the retaining column in this embodiment;

[0033] Figure 6 In this embodiment Figure 5 Schematic diagram of the structure with the plane at point B enlarged.

[0034] In the figure, 1. main body mechanism; 101. test bench; 102. electric torque bench; 103. column; 104. stop column; 105. limit ring; 2. test mechanism; 201. support frame; 202. guide block; 203. connecting frame; 204. stop block; 205. clamping block; 206. adjustment assembly; 207. moving block; 208. adjusting rod; 209. clamping block; 210. guide assembly; 211. reinforcement column; 212. torque disk; 3. adjustment mechanism; 301. adjustment rod; 302. positioning rod; 303. adjustment assembly; 304. positioning head; 305. positioning groove. DETAILED DESCRIPTION

[0035] The present invention will be described in further detail below with reference to the accompanying drawings.

[0036] Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom," "top," "inner," and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.

[0037] Reference Figure 1-6 As shown, a torsion spring stiffness test device in a preferred embodiment of the present invention comprises a main body mechanism 1, a testing mechanism 2 is mounted on the upper end of the main body mechanism 1, and an adjustment mechanism 3 is movably connected to the inner end of the main body mechanism 1;

[0038] The testing mechanism 2 includes a support frame 201, the outer end of the support frame 201 is provided with a guide block 202, the outer side of the guide block 202 is movably connected to a connecting frame 203, the lower part of the connecting frame 203 is movably connected to a stop block 204, the upper end of the stop block 204 is installed with symmetrically distributed clamping blocks 205, the upper part of the clamping block 205 is rotatably connected to an adjustment component 206, and the outer end of the adjustment component 206 is provided with a moving block 207.

[0039] Reference Figure 2-4 As shown, further, the outer end of the moving block 207 is hingedly connected to the symmetrically distributed adjusting rods 208, and the other end of the adjusting rod 208 away from the moving block 207 is hingedly connected to the clamping block 209, and the clamping block 209 is movably connected to the clamping block 205.

[0040] Reference Figure 4 As shown, further, the bottom end of the clamping block 209 is slidably connected to a guide assembly 210.

[0041] Reference Figure 2 and Figure 4 As shown, further, a reinforcement column 211 is installed at the outer end of the guide block 202, and a torque plate 212 is installed at the outer end of the reinforcement column 211.

[0042] By installing a pair of clamping blocks 205, the block 204 can be clamped to the inner end of the connecting frame 203, and when the block 204 that contacts the spring is damaged and needs to be disassembled, the adjustment assembly 206 composed of a rotating rod and a screw is rotated, and a pair of adjusting rods 208 can produce angle adjustment under the action of the moving block 207, which can drive the external clamping block 209 to adjust, so that the clamping block 209 and the clamping block 205 can be easily positioned and separated. The adjustment assembly 206 drives the clamping block 209 and the clamping block 205 to release the positioning restriction, so that the block 204 that has been in contact with the spring end for a long time can be easily disassembled, so that the test device will not be affected by the problem of the final test accuracy due to the large angle error between the damage and the spring.

[0043] Reference Figure 1 As shown, further, the main body mechanism 1 includes a test bench 101 , an electric torque platform 102 is installed at the upper end of the test bench 101 , and a column 103 is installed at the inner end of the electric torque platform 102 .

[0044] Reference Figure 1 and Figure 5 As shown, further, the outer side of the column 103 is movably connected to a blocking column 104 , and the upper side of the blocking column 104 is movably connected to a limiting ring 105 .

[0045] By installing the column 103, the torsion spring can be easily installed and assembled, and the testing work can be facilitated. The limit ring 105 can limit the outer end of the non-torsion section at the other end of the torsion spring, so that the torsion spring can increase the coordination effect of the torsion work during the test.

[0046] Reference Figure 5-6 As shown, further, the inner end of the blocking column 104 is slidably connected to the adjustment rod 301, and the inner end of the adjustment rod 301 is slidably connected to the symmetrically distributed positioning rod 302, the positioning rod 302 is located at the inner end of the blocking column 104, and the outer end of the positioning rod 302 is sleeved with an adjustment component 303.

[0047] Reference Figure 6 As shown, further, a positioning head 304 is installed at the front end of the positioning rod 302, and a plurality of symmetrically distributed positioning grooves 305 are opened at the inner end of the blocking column 104.

[0048] By installing a pair of positioning rods 302 and pulling them, the positioning rods 302 cooperate with the external spring ring and the guide ring to adjust the position, so that the positioning head 304 is positioned at the inner end of different positioning grooves 305, and the position of the limit ring 105 can be adjusted.

[0049] Specific implementation process: When the device is used, the position of the limit ring 105 can be adjusted according to the position of the spring. A pair of positioning rods 302 are pulled, and the positioning rods 302 cooperate with the external spring ring and the guide ring to adjust the position, so that the positioning head 304 is positioned at the inner end of different positioning grooves 305, so that the position of the limit ring 105 can be adjusted, thereby improving the adaptation effect of the limit ring 105.

[0050] When the torque during the test causes damage to the block 204 limited to the other non-torsion section of the spring, the adjustment assembly 206 composed of a rotating rod and a screw is rotated, and a pair of adjustment rods 208 can produce angle adjustment under the force of the moving block 207, which can drive the external clamping block 209 to adjust, so that the clamping block 209 and the clamping block 205 can be easily positioned and separated. The adjustment assembly 206 drives the clamping block 209 and the clamping block 205 to release the positioning restriction, so that the block 204 that has been in contact with the spring end for a long time can be easily disassembled, so that the test device will not be affected by the large angle error between the damage and the spring and the final test accuracy is affected, so that the device can be easily tested.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A torsion spring stiffness testing device, characterized in that: It comprises a main body mechanism (1), a testing mechanism (2) is mounted on the upper end of the main body mechanism (1), and an adjusting mechanism (3) is movably connected to the inner end of the main body mechanism (1); The testing mechanism (2) comprises a support frame (201), the outer end of the support frame (201) is sleeved with a guide block (202), the outer side of the guide block (202) is movably connected to a connecting frame (203), the lower side of the connecting frame (203) is movably connected to a stop block (204), the upper end of the stop block (204) is mounted with symmetrically distributed clamping blocks (205), the upper side of the clamping block (205) is rotatably connected to an adjustment assembly (206), and the outer end of the adjustment assembly (206) is sleeved with a moving block (207).

2. A torsion spring stiffness testing device according to claim 1, characterized in that: The outer end of the moving block (207) is hingedly connected to a symmetrically distributed adjusting rod (208), and the other end of the adjusting rod (208) away from the moving block (207) is hingedly connected to a clamping block (209), and the clamping block (209) is movably connected to the clamping block (205).

3. A torsion spring stiffness testing device according to claim 2, characterized in that: The bottom end of the clamping block (209) is slidably connected to a guide assembly (210).

4. A torsion spring stiffness testing device according to claim 1, characterized in that: A reinforcement column (211) is installed at the outer end of the guide block (202), and a torque disc (212) is installed at the outer end of the reinforcement column (211).

5. The torsion spring stiffness testing device according to claim 1, characterized in that: The main body mechanism (1) comprises a test bench (101), an electric torque bench (102) is mounted on the upper end of the test bench (101), and a column (103) is mounted on the inner end of the electric torque bench (102).

6. The torsion spring stiffness testing device according to claim 5, characterized in that: The outer side of the upright column (103) is movably connected to a stop column (104), and the upper side of the stop column (104) is movably connected to a limit ring (105).

7. The torsion spring stiffness testing device according to claim 6, characterized in that: The inner end of the blocking column (104) is slidably connected to an adjustment rod (301), and the inner end of the adjustment rod (301) is slidably connected to symmetrically distributed positioning rods (302). The positioning rods (302) are located at the inner end of the blocking column (104), and the outer end of the positioning rod (302) is sleeved with an adjustment component (303).

8. The torsion spring stiffness testing device according to claim 7, characterized in that: A positioning head (304) is installed at the front end of each positioning rod (302), and a plurality of symmetrically distributed positioning grooves (305) are provided at the inner end of each blocking column (104).

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