Suspension spring boundary dimension detection device

Abstract

The utility model provides a suspension spring boundary dimension detection device, which relates to the technical field of spring measurement and comprises a detection base plate, detection assemblies are symmetrically arranged on the detection base plate, and each detection assembly comprises a scale turntable, a detection groove plate, a positioning bump, a detection pin column and a ratchet wheel sleeve. The detection groove plate is installed on the scale rotating disc in a sliding mode, the ratchet wheel sleeve is rotationally connected to the outer edge of the detection groove plate in a sleeving mode, a plurality of ratchet wheel teeth connected end to end are arranged on the upper side of the ratchet wheel sleeve, the side walls of the ratchet wheel teeth abut against the outer side of the detection pin column, and an outer protruding edge is integrally formed on the outer edge of the positioning protruding ring. The detection groove plate is provided with a detection sliding groove. According to the utility model, the wire diameter at the junction of the eccentric section and the measuring end of the spring workpiece is measured by detecting the distance between the pin column and the positioning bump, and the device can be used for measuring the more accurate wire diameter of the spring.

Description

TECHNICAL FIELD

[0001] The utility model relates to spring measurement technical field, concretely is a suspension spring appearance size detection device. BACKGROUND

[0002] The automobile suspension spring is the elastic element in the automobile suspension, makes the elastic connection between the axle and the frame or the vehicle body, bears and transmits the vertical load, moderates and restrains the impact caused by the uneven road, because the force action line of the vehicle body to the shock absorber top rubber is not along the axial direction of the shock absorber, this can lead to the larger friction force of the shock absorber guide and the piston ring, and the long time can lead to the abnormal wear of these components, eventually leaks oil and fails, the end of the automobile suspension spring is usually designed as the eccentric shape, can make the shock absorber axial force vector, the vector of the lower swing arm force and the tire Z direction force vector intersect at a point, thereby reducing the friction force of the shock absorber in the recovery and compression stroke, improving the overall performance of the suspension.

[0003] The utility model discloses a kind of detection eccentric force suspension spring appearance size measuring tool, which is disclosed in the specification of patent No.

[0004] But in spring manufacturing process, the line diameter of the end of the suspension spring can be different due to changes in the processing process, since the end of the suspension spring is designed as eccentric, the winding arc of the end of the suspension spring gradually increases and is less than the winding diameter of the middle body of the suspension spring, so the line diameter change of the end of the suspension spring after processing cannot be used to detect the line diameter of the body of the suspension spring, therefore the detection method represented by the spring material diameter between the pin column and the supporting curve is not accurate. Utility model content

[0005] (I) technical problem solved

[0006] In view of the deficiencies of the prior art, the utility model provides a kind of suspension spring appearance size detection device, solves the problems raised in the above background art.

[0007] (II) technical scheme

[0008] To achieve the above purposes, the utility model is realized by the following technical schemes:

[0009] The utility model provides a kind of suspension spring contour size detection device, including detection base plate and spring workpiece, fixed beam plate and sliding beam plate are installed on the detection base plate and are arranged in parallel, detection component is symmetrically arranged on the fixed beam plate and sliding beam plate, the detection component includes scale dial, detection groove plate, positioning lug, detection pin column and ratchet sleeve, the scale dial is rotatably connected on fixed beam plate, the detection groove plate is slidably installed on scale dial, the detection groove plate is provided with positioning ring groove, the positioning lug is recessed and protrudingly matched and inserted in positioning ring groove, the outer edge of the positioning lug is integrally formed with outer convex rib, the both ends of spring workpiece are recessed and protrudingly matched and sleeved on outer convex rib, the end of spring workpiece is abutted on the side wall of outer convex rib, detection groove is provided on the detection groove plate, detection pin column is slidably installed in detection slide groove, and the center line of detection slide groove is flush with the end of outer convex rib.

[0010] Preferably, a return spring is connected between the detection slide groove and the detection pin column, and the axis of the detection pin column is flush with the end of the outer convex rib.

[0011] Preferably, a rotating rotation groove is formed in the outer edge of the detection groove plate, the ratchet sleeve is rotatably connected and sleeved on the outer edge of the detection groove plate, the upper side of the ratchet sleeve is provided with a plurality of ratchet teeth connected head to tail, and the side wall of the ratchet teeth is abutted on the outer side of the detection pin column.

[0012] Preferably, a plurality of scale grooves are formed in the detection groove plate along the extension direction of the detection slide groove, the lower end of the detection pin column is connected with an I-shaped sliding block, the I-shaped sliding block is slidably installed in the detection slide groove, and the front end of the I-shaped sliding block is aligned with the scale groove.

[0013] Preferably, a plurality of limiting blocks are provided on the fixed beam plate and the sliding beam plate, the scale dial is rotatably connected on the limiting block, the limiting block is threadedly connected with a clamping bolt, and the front end of the clamping bolt is abutted on the side wall of the scale dial.

[0014] Preferably, an eccentric bolt is rotatably connected in the middle of the detection groove plate, an eccentric slot is formed in the scale dial, the eccentric bolt is threadedly connected with an eccentric sliding block on one side of the eccentric slot, and the eccentric sliding block is slidably abutted on the other side of the scale dial.

[0015] (Three) beneficial effects

[0016] The utility model provides a kind of suspension spring contour size detection device. It has the following beneficial effects:

[0017] 1. The spring workpiece concave-convex matching sleeve is arranged on the positioning protrusion, the outer convex rib is matched with the eccentric part inner ring concave-convex of the spring workpiece, that is, the outer convex rib is tightly attached to the inner wall of the spring workpiece at any position, the position of the detection pin is staggered with the eccentric segment of the spring workpiece and directly opposite the position of the second circle of the spring workpiece by limiting the position of the detection sliding groove to the outer convex rib, the curvature of this position is basically consistent with the curvature of the spring workpiece, the outer side of the position of the second circle of the spring workpiece touched by the detection pin can be touched by rotating the ratchet sleeve, and the distance between the outer convex rib and the detection pin is read through the scale groove, that is, the linear diameter of the spring workpiece, so that the linear diameter measurement result of the spring workpiece is more accurate. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structure schematic view of the suspension spring appearance size detection device of the utility model;

[0019] Figure 2 It is a structure schematic view of the detection assembly in the utility model;

[0020] Figure 3 It is a structure schematic view of the detection groove plate in the utility model.

[0021] In the drawing: 1, detection base plate; 2, fixed beam plate; 3, sliding beam plate; 4, guide optical axis; 5, scale; 6, pointing needle; 7, eccentric bolt; 8, eccentric sliding block; 9, scale dial; 10, detection groove plate; 11, positioning protrusion; 12, detection pin; 13, ratchet sleeve; 14, limiting block; 15, clamping bolt; 16, positioning ring groove; 17, outer convex rib; 18, detection sliding groove; 19, I-shaped sliding block; 20, ratchet tooth; 21, return spring. DETAILED DESCRIPTION

[0022] The technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment.

[0023] As Figure 1 shown, a suspension spring appearance size detection device, including horizontally placed detection base plate 1 and spring workpiece, the spring workpiece includes two ends eccentrically arranged eccentric segment and measurement segment, the detection base plate 1 is installed with parallelly arranged fixed beam plate 2 and sliding beam plate 3, the fixed beam plate 2 is vertically fixed at one end of detection base plate 1, the fixed beam plate 2 is provided with two guide optical axes 4 with detection base plate 1, the sliding beam plate 3 is slidably connected on guide optical axis 4, the detection base plate 1 is fixed with scale 5 arranged in parallel with guide optical axis 4, the side of sliding beam plate 3 towards scale 5 is provided with pointing needle 6, and the pointing needle 6 points to scale 5.

[0024] The middle part of the detection groove plate 10 is rotationally connected with an eccentric bolt 7, an eccentric slot is formed in the scale dial 9, the eccentric bolt 7 is threadedly connected with an eccentric sliding block 8 through one side of the eccentric slot, the eccentric sliding block 8 is in sliding abutment with the other side of the scale dial 9

[0025] As shown in Figure 2 , Figure 3 , the fixed beam plate 2 and the sliding beam plate 3 are symmetrically provided with detection assemblies, the detection assembly comprises a scale dial 9, a detection groove plate 10, a positioning protrusion 11, a detection pin column 12 and a ratchet sleeve 13, the scale dial 9 is rotationally connected on the fixed beam plate 2, the middle part of the fixed beam plate 2 and the sliding beam plate 3 is provided with an adjusting hole, the fixed beam plate 2 and the sliding beam plate 3 are provided with a plurality of limiting blocks 14, the limiting blocks 14 are uniformly distributed around the adjusting hole, the inner side of the limiting block 14 is provided with a rotating opening, the outer edge of the scale dial 9 is provided with an outer protruding ring, the outer protruding ring is rotationally connected on the rotating opening, the limiting block 14 is threadedly connected with a clamping bolt 15, the front end of the clamping bolt 15 is in abutment with the side wall of the scale dial 9, the clamping bolt 15 can be in abutment with the outer side wall of the scale dial 9 to form abutment positioning, so as to realize the rotational adjustment and locking of the scale dial 9.

[0026] As shown in Figure 3 , the detection groove plate 10 is slidingly installed on the scale dial 9, the detection groove plate 10 is provided with a positioning ring groove 16, the positioning protrusion 11 is inserted in the positioning ring groove 16 in concave-convex cooperation, the outer edge of the positioning protrusion is integrally formed with an outer protruding rib 17, the eccentric segment of the spring workpiece is fitted on the outer protruding rib 17 in concave-convex cooperation, the inner wall of the eccentric segment of the spring workpiece is in abutment with the side wall of the outer protruding rib 17, the both ends of the spring workpiece are in abutment with the detection groove plate 10 on the fixed beam plate 2 and the sliding beam plate 3, at this time, the distance between the fixed beam plate 2 and the sliding beam plate 3 is the free length of the spring workpiece.

[0027] The detection groove plate 10 is provided with a detection sliding groove 18, a plurality of scale grooves are formed in the detection groove plate 10 along the extension direction of the detection sliding groove 18, the lower end of the detection pin column 12 is connected with an I-shaped sliding block 19, the I-shaped sliding block 19 is slidingly installed in the detection sliding groove 18, the front end of the I-shaped sliding block 19 is aligned with the scale groove, the center line of the detection sliding groove 18 is flush with the end of the outer protruding rib 17, the position of the detection sliding groove 18 is limited, when the eccentric segment of the spring workpiece is fitted on the outer side of the positioning protrusion 11 and the end of the spring workpiece is in abutment with the side wall of the outer protruding rib 17, at this time, the point where the detection pin column 12 in sliding in the detection sliding groove 18 contacts the outer wall of the spring workpiece is not completely staggered with the eccentric segment of the spring workpiece, that is, the detection pin column 12 is in abutment with the junction position of the eccentric segment and the measuring segment, at this position, the bending degree of the spring workpiece is consistent with the bending degree of the measuring segment, the spring wire diameter measured at this position can be used to express the wire diameter of the spring workpiece.

[0028] The outer edge of the detection groove plate 10 is provided with a rotating rotating groove, the ratchet sleeve 13 is rotatably connected to the outer edge of the detection groove plate 10, the upper side of the ratchet sleeve 13 is provided with a plurality of ratchet teeth 20 connected in head-to-tail mode, the side wall of the ratchet tooth 20 abuts against the outer side of the detection pin column 12, and the lower side of the ratchet tooth 20 is provided with a gap groove which is in sliding abutment with the upper side of the I-shaped sliding block 19.

[0029] Further, the reset spring 21 is connected between the detection sliding groove 18 and the detection pin column 12, and the axis of the detection pin column 12 is flush with the end of the outer convex rib 17.

[0030] Workflow:

[0031] In the utility model, the detection base plate 1 is horizontally placed, the eccentric bolt 7 and the clamping bolt 15 are screwed, the detection groove plate 10 and the scale turntable 9 are in a loose state, the eccentric section of the both ends of the spring workpiece is inserted on the positioning convex block 11, the spring workpiece is horizontally extended under the self-elasticity of the spring workpiece, the spring workpiece is in a free state, the eccentric bolt 7 and the clamping bolt 15 are tightened at this time, the position of the spring workpiece is locked, and the position of the eccentric sliding block 8 relative to the scale turntable 9 can be used to reflect the eccentricity of the spring workpiece at this time.

[0032] The distance between the fixed beam plate 2 and the sliding beam plate 3 can reflect the spring length of the spring workpiece in the free state, and the indicating needle 6 on the fixed beam plate 2 points to the position of the scale 5 at this time, which can be used for reading the spring length.

[0033] The ratchet sleeve 13 is manually rotated, the side wall of the ratchet tooth 20 of the ratchet sleeve 13 abuts against the outer side wall of the detection pin column 12, the detection pin column 12 is in sliding abutment on the outer wall at the junction between the eccentric section and the measuring section of the spring workpiece through the inclined surface extrusion, the curvature of the position is consistent with the curvature of the measuring section, that is, the linear diameter of the position can be used to reflect the linear diameter of the spring workpiece, and the linear diameter data of the spring can be read by the corresponding scale groove of the I-shaped sliding block 19.

[0034] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the external dimensions of a suspension spring, comprising a detection base plate and a spring workpiece, characterized in that: The detection base plate is equipped with parallel fixed beam plates and sliding beam plates. Detection components are symmetrically arranged on the fixed beam plates and sliding beam plates. Each detection component includes a scale turntable, a detection groove plate, a positioning protrusion, a detection pin, and a ratchet sleeve. The scale turntable is rotatably connected to the fixed beam plate. The detection groove plate is slidably mounted on the scale turntable. The detection groove plate is provided with a positioning ring groove. The positioning protrusion is inserted into the positioning ring groove with a concave-convex fit. The outer edge of the positioning protrusion is integrally formed with an external convex ridge. The two ends of the spring workpiece are concave-convex fit onto the external convex ridge. The end of the spring workpiece abuts against the side wall of the external convex ridge. The detection groove plate is provided with a detection slide groove. The detection pin is slidably mounted in the detection slide groove. The centerline of the detection slide groove is flush with the end of the external convex ridge.

2. The suspension spring external dimension detection device according to claim 1, characterized in that: A return spring is connected between the detection groove and the detection pin, and the axis of the detection pin is kept flush with the end of the outer protrusion.

3. The suspension spring external dimension detection device according to claim 2, characterized in that: The outer edge of the detection slot plate is provided with a rotating groove, and the ratchet sleeve is rotatably connected and sleeved on the outer edge of the detection slot plate. The upper side of the ratchet sleeve is provided with a number of ratchet teeth connected end to end, and the sidewall of the ratchet teeth abuts against the outer side of the detection pin.

4. The suspension spring external dimension detection device according to claim 3, characterized in that: The detection slot plate has several graduated grooves along the extension direction of the detection slide groove. The lower end of the detection pin is connected to an I-shaped slider, which is slidably installed in the detection slide groove. The front end of the I-shaped slider is aligned with the graduated groove.

5. The suspension spring external dimension detection device according to claim 4, characterized in that: The fixed beam plate and the sliding beam plate are provided with a number of limiting blocks. The scale turntable is rotatably connected to the limiting blocks. The limiting blocks are threaded with snap-fit ​​bolts, and the front end of the snap-fit ​​bolts abuts against the side wall of the scale turntable.

6. The suspension spring external dimension detection device according to claim 5, characterized in that: An eccentric bolt is rotatably connected to the middle of the detection slot plate. An eccentric slot is provided on the scale dial. An eccentric slider is threaded to one side of the eccentric bolt that passes through the eccentric slot. The eccentric slider slides and abuts against the other side of the scale dial.

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