CN214502860U

CN214502860U - Spring retraction mechanism of spring fatigue testing machine

Info

Publication number: CN214502860U
Application number: CN202120527013.XU
Authority: CN
Inventors: 李维军; 徐文刚
Original assignee: Jiangxi Fuming Spring Manufacturing Co ltd
Current assignee: Jiangxi Fuming Spring Manufacturing Co ltd
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2021-10-26
Anticipated expiration: 2031-03-15

Abstract

The utility model relates to the technical field of spring detection, and discloses a spring contraction mechanism of a spring fatigue tester, which comprises a bottom plate, wherein a slide bar is slidably arranged at the left side of a first fixed plate, a fixed stop block is clamped at the right end of the slide bar, a first shaft is rotatably arranged at the front side of a support plate, a symmetrical gear is fixedly arranged on the outer surface of the first shaft, a half gear is fixedly arranged on the outer surface of a second shaft, a rack is slidably arranged in the second fixed plate through a concave fixed block, the spring contraction mechanism of the spring fatigue tester drives the rack to rapidly and transversely reciprocate through the first shaft matching with the symmetrical gear and the half gear, the rack is matched with the fixed stop block to automatically contract and test a spring to be tested in the rapid moving process, the stress of the spring to be tested is more uniform, and the effect of automatically and continuously testing the spring is improved, the spring testing time is reduced, and the labor cost is saved.

Description

Spring retraction mechanism of spring fatigue testing machine

Technical Field

The utility model relates to a spring detects technical field, specifically is a spring fatigue test machine spring scaling mechanism.

Background

The spring fatigue refers to a fracture phenomenon generated after the spring is extruded and deformed, generally, the metal generates cracks after being deformed, the cracks are generally very small and even can be ignored sometimes, but the cracks are increased due to frequent deformation, the crack gap is increased, and finally, the spring fatigue is caused. The spring fatigue testing device mainly tests the fatigue of the spring through a compression spring or an extension spring so as to obtain the fatigue characteristic of the detected spring, so that the proper spring can be correctly used in different application occasions, and the spring fatigue testing device becomes one of necessary devices of spring manufacturers and application manufacturers.

When the spring retraction mechanism of the existing spring fatigue testing machine is used, the stress of a spring to be tested is not uniform enough, so that the automatic continuous fatigue testing effect of the spring is general, the spring to be tested is inconvenient to fix, the spring is easy to deviate in the testing process, and the precision of the spring fatigue testing is difficult to guarantee.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model is not enough to prior art, the utility model provides a spring fatigue test machine spring scaling mechanism, it is more even to possess the atress that makes the spring that awaits measuring, the effect of carrying out automatic continuous fatigue test to the spring has been improved, be convenient for fix the spring that awaits measuring, the problem of spring emergence skew in the testing process has been avoided, advantages such as precision of spring fatigue test have been guaranteed, it makes the atress of the spring that awaits measuring not enough even to have solved scaling mechanism, the effect that leads to the automatic continuous fatigue test of spring is general, inconvenient fixing the spring that awaits measuring, and then lead to the spring to take place the skew easily in the testing process, be difficult to guarantee the problem of spring fatigue test precision.

(II) technical scheme

In order to solve the technical problem, the utility model provides a following technical scheme: a spring contraction mechanism of a spring fatigue testing machine comprises a bottom plate, wherein a first fixing plate is fixedly installed on the left side of the top of the bottom plate, a second fixing plate is fixedly installed on the top of the bottom plate, a slide rod is slidably installed on the left side of the first fixing plate, the right end of the slide rod penetrates through the first fixing plate and extends to the outside of the first fixing plate, a fixing stop block is clamped at the right end of the slide rod, a supporting plate is fixedly installed on the right side of the second fixing plate, a first shaft is rotatably installed on the front side of the supporting plate, a symmetrical gear is fixedly installed on the outer surface of the first shaft, a second shaft is rotatably installed on the front side of the supporting plate and positioned on the right side of the first shaft, a half gear is fixedly installed on the outer surface of the second shaft, the outer surface of the symmetrical gear is meshed with the outer surface of the half gear, and a rack is slidably installed inside the second fixing plate through a concave fixing block, the left side and the right side of the rack penetrate through the second fixing plate and extend to the outside of the second fixing plate, and the outer surfaces of the symmetrical gear and the half gear are meshed with the bottom of the rack.

Preferably, a sliding plate is slidably mounted on the front surface of the inner cavity of the sliding rod, and the back surface of the sliding plate is slidably connected with the back surface of the inner cavity of the sliding rod.

Preferably, the right end of the slide bar is provided with a fixing groove, and the top and the bottom on the right side of the inner cavity of the slide bar are respectively provided with a clamping block in a sliding manner.

Preferably, the top and the bottom on slide right side all rotate and install the connecting rod, the right-hand member of connecting rod rotates with the left side of fixture block and is connected.

Preferably, the two clamping blocks are fixedly mounted on one sides far away from each other with adjusting rods, and one ends far away from each other of the two adjusting rods penetrate through the sliding rod and extend to the outside of the sliding rod.

Preferably, a fixed block is fixedly mounted on the left side of the fixed stop block, the outer surface of the fixed block is matched with the inner surface of the fixed groove, clamping grooves are formed in the top and the bottom of the fixed block, and the inner surface of each clamping groove is matched with the outer surface of the corresponding clamping block.

(III) advantageous effects

Compared with the prior art, the utility model provides a spring fatigue test machine spring scaling mechanism possesses following beneficial effect: this spring fatigue test machine spring jack accessible passes the fixed block and inserts the slide bar inside and drive the slide and move left, and the slide drives two fixture blocks through the connecting rod and can cooperate fixed dog to fix the spring that awaits measuring in the slide bar surface to the middle removal card advances the draw-in groove, drives rack transverse reciprocating motion fast through a number axle cooperation symmetrical gear and half-gear, and the rack cooperates fixed dog to carry out the automatic test of zooming to the spring that awaits measuring at the quick travel in-process.

1. This spring fatigue test machine spring jack drives the quick horizontal reciprocating motion of rack through a shaft cooperation symmetrical gear and half-gear, and the rack cooperates fixed dog to carry out the automatic test of zooming to the spring that awaits measuring at the quick travel in-process, and the atress of the spring that awaits measuring is more even, has improved the effect of carrying out automatic continuous fatigue test to the spring, has reduced the time of spring fatigue test, has saved the human cost.

2. This spring fatigue test machine spring jack inserts the slide bar inside and drives the slide left shifting through passing the fixed block, and the slide drives two fixture blocks through the connecting rod and can cooperate fixed dog to fix the spring that awaits measuring at the slide bar surface in moving the card to the middle card and advancing the draw-in groove, has reached and has carried out the fixed purpose to the spring that awaits measuring, has avoided the spring to take place the problem of skew in the testing process, has guaranteed the precision of spring fatigue test.

Drawings

Fig. 1 is a front view of the external structure of the present invention.

Fig. 2 is a partial front view of the internal structure of the slide bar of the present invention.

Fig. 3 is a front view of the internal structure of the fixed stop of the present invention.

In the figure: 1. a base plate; 2. a first fixing plate; 3. a second fixing plate; 4. a slide bar; 5. fixing a stop block; 6. a support plate; 7. a first shaft; 8. a symmetrical gear; 9. a second shaft; 10. a half gear; 11. a rack; 12. a slide plate; 13. a clamping block; 14. a connecting rod; 15. adjusting a rod; 16. a fixed block; 17. a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a spring retraction mechanism of a spring fatigue testing machine comprises a base plate 1, wherein the base plate 1 is used for providing bottom support for a first fixing plate 2 and a second fixing plate 3, the left side of the top of the base plate 1 is fixedly provided with the first fixing plate 2, the first fixing plate 2 is used for providing external support for a slide bar 4, the top of the base plate 1 is fixedly provided with the second fixing plate 3, the second fixing plate 3 is used for providing external support for a rack 11 and a support plate 6, the left side of the first fixing plate 2 is slidably provided with the slide bar 4, the right end of the slide bar 4 penetrates through the first fixing plate 2 and extends to the outside of the first fixing plate 2, the right end of the slide bar 4 is clamped with a fixed stop 5, the right side of the second fixing plate 3 is fixedly provided with a support plate 6, the support plate 6 is used for providing external support for a first shaft 7 and a second shaft 9, the front surface of the support plate 6 is rotatably provided with the first shaft 7, the rear end of a first shaft 7 is fixedly connected with an external driving device, a symmetrical gear 8 is fixedly arranged on the outer surface of the first shaft 7, a second shaft 9 is rotatably arranged on the front surface of a supporting plate 6 and positioned on the right side of the first shaft 7, a half gear 10 is fixedly arranged on the outer surface of the second shaft 9, the outer surface of the symmetrical gear 8 is meshed with the outer surface of the half gear 10, a rack 11 is slidably arranged in a second fixing plate 3 through a concave fixing block, the left side and the right side of the rack 11 both penetrate through the second fixing plate 3 and extend to the outside of the second fixing plate 3, the outer surfaces of the symmetrical gear 8 and the half gear 10 are meshed with the bottom of the rack 11, a sliding plate 12 is slidably arranged on the front surface of an inner cavity of a sliding rod 4, the back surface of the sliding plate 12 is slidably connected with the back surface of the inner cavity of the sliding rod 4, a fixing groove is formed in the right end of the sliding rod 4, and clamping blocks 13 are slidably arranged on the top and the bottom of the right side of the inner cavity of the sliding rod 4, the top on slide 12 right side and the bottom are all rotated and are installed connecting rod 14, the right-hand member of connecting rod 14 is connected with the left side rotation of fixture block 13, the equal fixed mounting in one side that two fixture blocks 13 kept away from each other has regulation pole 15, the one end that two regulation poles 15 kept away from each other all runs through slide bar 4 and extends to slide bar 4's outside, the left side fixed mounting of fixed dog 5 has fixed block 16, the surface of fixed block 16 and the internal surface looks adaptation of fixed slot, draw-in groove 17 has all been seted up to the top and the bottom of fixed block 16, the internal surface of draw-in groove 17 and the surface looks adaptation of fixture block 13.

The working principle is as follows: firstly, a worker sleeves a spring to be tested on the outer surface of a slide rod 4, then the fixed block 16 penetrates through a fixed groove to be inserted into the slide rod 4 and drives a sliding plate 12 to move leftwards, the sliding plate 12 drives two clamping blocks 13 to move towards the middle through a connecting rod 14 in the leftward movement process and then is clamped into a clamping groove 17 in a matched mode to fix the spring to be tested on the outer surface of the slide rod 4 through a fixed stop 5, then an external driving device drives a first shaft 7 to rotate, the first shaft 7 drives a second shaft 9 and a half gear 10 to drive a rack 11 to rapidly and transversely reciprocate in the rotation process through a symmetrical gear 8, the rack 11 is matched with the fixed stop 5 in the rapid movement process to automatically zoom and test the spring to be tested, and the clamping blocks 13 are separated from the clamping groove 17 through pulling out an adjusting rod 15 to take the tested spring down.

To sum up, the spring retraction mechanism of the spring fatigue testing machine can pass a fixing block 16 through a fixing groove to be inserted into a slide bar 4 and drive a slide plate 12 to move leftwards, the slide plate 12 drives two clamping blocks 13 to move towards the middle through a connecting rod 14 and is clamped into a clamping groove 17, the two clamping blocks can be matched with a fixing stop block 5 to fix a spring to be tested on the outer surface of the slide bar 4, a first shaft 7 is matched with a symmetrical gear 8 and a half gear 10 to drive a rack 11 to rapidly and transversely reciprocate, and the rack 11 is matched with the fixing stop block 5 to automatically retract and test the spring to be tested in the rapid moving process.

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

Claims

1. The utility model provides a spring fatigue test machine spring scaling mechanism, includes bottom plate (1), its characterized in that: the left side fixed mounting at bottom plate (1) top has fixed plate (2) No. one, the top fixed mounting of bottom plate (1) has fixed plate (3) No. two, the left side slidable mounting of fixed plate (2) has slide bar (4), the right-hand member of slide bar (4) runs through fixed plate (2) and extends to the outside of fixed plate (2) No. one, the right-hand member joint of slide bar (4) has fixed dog (5), the right side fixed mounting of fixed plate (3) has backup pad (6), the front of backup pad (6) is rotated and is installed axle (7) No. one, the external fixed mounting of axle (7) has symmetrical gear (8), the right-hand rotation that just is located axle (7) in the front of backup pad (6) installs axle (9) No. two, the external fixed mounting of axle (9) has half gear (10), the surface of symmetry gear (8) meshes with the surface of half gear (10) mutually, there is rack (11) inside No. two fixed plates (3) through concave type fixed block slidable mounting, the left side and the right side of rack (11) all run through No. two fixed plates (3) and extend to the outside of No. two fixed plates (3), the surface of symmetry gear (8) and half gear (10) all meshes with the bottom of rack (11).

2. The spring retraction mechanism for spring fatigue testing machine according to claim 1, wherein: the front surface of the inner cavity of the sliding rod (4) is provided with a sliding plate (12) in a sliding way, and the back surface of the sliding plate (12) is connected with the back surface of the inner cavity of the sliding rod (4) in a sliding way.

3. The spring retraction mechanism for spring fatigue testing machine according to claim 1, wherein: the right end of the slide rod (4) is provided with a fixing groove, and the top and the bottom of the right side of the inner cavity of the slide rod (4) are provided with clamping blocks (13) in a sliding mode.

4. The spring rate reduction mechanism of claim 2, wherein: the top and the bottom on slide (12) right side all rotate and install connecting rod (14), the right-hand member of connecting rod (14) is connected with the left side rotation of fixture block (13).

5. The spring rate reduction mechanism of claim 3, wherein: one sides, far away from each other, of the two clamping blocks (13) are fixedly provided with adjusting rods (15), and one ends, far away from each other, of the two adjusting rods (15) penetrate through the sliding rod (4) and extend to the outside of the sliding rod (4).

6. The spring retraction mechanism for spring fatigue testing machine according to claim 1, wherein: the left side fixed mounting of fixed dog (5) has fixed block (16), the surface of fixed block (16) and the internal surface looks adaptation of fixed slot, draw-in groove (17) have all been seted up to the top and the bottom of fixed block (16), the internal surface of draw-in groove (17) and the surface looks adaptation of fixture block (13).