Standard form testing fixture for seat backrest spring

Abstract

The utility model discloses a seat backrest spring standard form testing fixture, relates to the testing fixture technology field, and comprises a testing fixture body and a backrest spring, the surface of the testing fixture body is provided with a standard placing groove, the backrest spring is placed in the standard placing groove, two sides of the top surface of the testing fixture body are provided with placing grooves, and the placing grooves are arranged in the placing grooves. Magnetic plates are fixed in the two groups of placing grooves, and clamping grooves matched with the backrest springs are formed in the surfaces of the magnetic plates. According to the utility model, the backrest spring is placed in the standard placing groove in the detection tool body, the standard placing groove is matched with the standard shape of the seat backrest spring, the backrest spring after production is detected according to the fitting condition of the backrest spring and the standard placing groove, and the magnetic structure is arranged at a specific position, so that the detection accuracy is improved. Therefore, the product can be quickly aligned with the standard placement groove under the magnetic effect, the detection efficiency of the backrest spring is greatly improved, and the overall working intensity and working time are effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of testing fixture, concretely to a standard form testing fixture of seat back spring. BACKGROUND

[0002] The seat back spring is an important component of the seat back structure, which is usually made of elastic metal material. Its main function is to provide support and elastic recovery force for the seat back. The seat back spring can be moderately compressed and stretched according to the body pressure and posture of the user, thereby enhancing the comfort and adaptability of the seat to some extent. Good seat back spring design can effectively reduce the fatigue of the user during long sitting, provide appropriate waist support, and help maintain correct posture.

[0003] In the prior art, there is a lack of matching testing fixtures when detecting the internal spring form of the seat back, resulting in low overall detection efficiency when detecting the standard form of the seat back spring, and time-consuming and laborious detection process. UTILITY MODEL CONTENT

[0004] Therefore, the utility model aims to provide a standard form testing fixture for seat back spring to solve the technical problem of low overall detection efficiency when detecting the standard form of the seat back spring due to the lack of matching testing fixtures in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a standard form testing fixture for seat back spring, comprising a testing fixture body and a back spring, wherein the testing fixture body surface is provided with a standard placement groove, and the back spring is placed inside the standard placement groove.

[0006] The testing fixture body top surface is provided with a placement groove on both sides, and two groups of magnetic plates are fixed inside the placement grooves. The magnetic plate surface is provided with a matching clamping groove for the back spring, and the magnetic plate surface and the testing fixture body surface have consistent concave-convex states.

[0007] The number of the plurality of standard placement grooves is two groups, and the top positions of the two groups of standard placement grooves are not connected to each other, which facilitates better stripping of the back spring absorbed in the groove from the top and is more convenient to operate.

[0008] A curved portion is provided on the two groups of standard placement grooves, and the cross section of the curved portion is in the shape of "S". The cross section of the testing fixture body bottom position is in the shape of wave. The wave-shaped structure better increases the rigidity of the back spring and the range of forces it can withstand.

[0009] By adopting the technical scheme, the backrest spring is placed in the standard placing groove inside the detection tool body, the standard placing groove is matched with the standard form of the seat backrest spring, the backrest spring is checked by the fitting condition of the backrest spring and the standard placing groove, the magnetic structure is arranged at the specific position, the product can be quickly aligned with the standard placing groove under the magnetic action, the detection efficiency of the backrest spring is greatly improved, and the overall working strength and working time are effectively reduced.

[0010] Further, the detection tool body surface one end is provided with a plurality of positioning magnetic blocks, and the positioning magnetic blocks play an auxiliary positioning role on the backrest spring.

[0011] By adopting the technical scheme, the backrest spring is placed in the standard placing groove inside the detection tool body, the standard placing groove is matched with the standard form of the seat backrest spring, the backrest spring is checked by the fitting condition of the backrest spring and the standard placing groove, the magnetic structure is arranged at the specific position, the product can be quickly aligned with the standard placing groove under the magnetic action, the detection efficiency of the backrest spring is greatly improved, and the overall working strength and working time are effectively reduced.

[0012] In summary, the utility model mainly has the following beneficial effects: the backrest spring is placed in the standard placing groove inside the detection tool body, the standard placing groove is matched with the standard form of the seat backrest spring, the backrest spring is checked by the fitting condition of the backrest spring and the standard placing groove, the magnetic structure is arranged at the specific position, the product can be quickly aligned with the standard placing groove under the magnetic action, the detection efficiency of the backrest spring is greatly improved, and the overall working strength and working time are effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the structure schematic view of the spring placing state of the utility model;

[0014] Figure 2 It is the structure schematic view of the spring placing state of the utility model; Figure 1

[0015] Figure 3 It is the structure schematic view of the spring placing state of the utility model;

[0016] Figure 4 It is the structure schematic view of the spring placing state of the utility model; Figure 3

[0017] In the drawing: 1, detection tool body; 2, standard placing groove; 3, backrest spring; 4, magnetic plate; 5, placing groove; 6, clamping groove; 7, positioning magnetic block. DETAILED DESCRIPTION

[0018] ​​The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0019] The embodiments of this utility model will be described below based on its overall structure.

[0020] A standard form gauge for seat back springs, such as Figures 1-4 As shown, it includes a fixture body 1 and a backrest spring 3. A standard placement groove 2 is provided on the surface of the fixture body 1, and the backrest spring 3 is placed inside the standard placement groove 2.

[0021] The top surface of the inspection fixture body 1 has placement slots 5 on both sides. Magnetic plates 4 are fixed inside the two sets of placement slots 5. The surface of the magnetic plates 4 has a locking groove 6 that matches the backrest spring 3. The surface of the magnetic plates 4 and the surface of the inspection fixture body 1 have the same concave and convex state.

[0022] There are two sets of standard placement grooves 2, and the top positions of the two sets of standard placement grooves 2 are not connected to each other, which makes it easier to peel the backrest springs adsorbed in the grooves from the top, making it easier to operate.

[0023] Furthermore, the two sets of standard placement grooves 2 have curved sections with an "S" shaped cross section, and the bottom of the inspection fixture body 1 has a wavy cross section. The wavy structure further increases the rigidity of the backrest spring 2 and the range of force it can withstand.

[0024] During testing, the backrest spring 3 is placed inside the standard placement groove 2 inside the inspection fixture body 1. The standard placement groove 2 matches the standard shape of the seat backrest spring. The backrest spring 3 after production is inspected by observing the fit between the backrest spring 3 and the standard placement groove 2.

[0025] Meanwhile, a magnetic structure is set in a specific position, so that the product can quickly align with the standard placement groove 2 under the action of magnetism, thereby greatly improving the detection efficiency of the backrest spring 3 and effectively reducing the overall workload and working time.

[0026] Please see Figure 1 and Figure 3 The surface of the fixture body 1 is provided with multiple sets of positioning magnetic blocks 7, which play an auxiliary positioning role for the backrest spring 3. The surface of the fixture body 1 is provided with mounting holes that cooperate with the multiple sets of positioning magnetic blocks 7, and there are six sets of positioning magnetic blocks 7. By setting the above structure, the present invention provides multiple recessed positioning magnetic blocks 7 at the top of the fixture body 1, which can further quickly position the backrest spring 3 and further improve the overall work efficiency.

[0027] The working principle of the utility model is: in use, the standard placing groove 2 matched with the standard form of the seat back spring 3 is arranged on the surface of the detection tool body 1, and the magnetic plate 4 is arranged in the placing groove of the end portion, wherein the magnetic plate 4 can quickly position the back spring 3;

[0028] When detecting, the back spring 3 is placed in the standard placing groove 2 in the detection tool body 1, wherein the standard placing groove 2 is matched with the standard form of the seat back spring, and the back spring 3 after production is checked by the adhesion of the back spring 3 and the standard placing groove 2;

[0029] Meanwhile, the magnetic structure is arranged at the specific position, so that the product can be quickly aligned with the standard placing groove 2 under the magnetic action, thereby greatly improving the detection efficiency of the back spring 3 and effectively reducing the overall working strength and working time;

[0030] The sinking type positioning magnetic block 7 is arranged at the top of the detection tool body 1, which can further quickly position the back spring 3 and further improve the overall working efficiency.

[0031] Although the embodiments of the utility model have been shown and described, the specific embodiments are only an explanation of the utility model, and are not a limitation of the utility model, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and the person skilled in the art can make non-creative contribution modifications, replacements and changes of the embodiments according to the needs after reading the specification without departing from the principles and purposes of the utility model, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A standard form inspection fixture for a seat back spring, comprising a fixture body (1) and a back spring (3), characterized in that: The surface of the inspection fixture body (1) is provided with a standard placement groove (2), and the backrest spring (3) is placed inside the standard placement groove (2). Multiple sets of positioning magnetic blocks (7) are provided at one end of the surface of the inspection fixture body (1), and the positioning magnetic blocks (7) play an auxiliary positioning role for the backrest spring (3).

2. The standard shape inspection tool for seat back springs according to claim 1, characterized in that: The top surface of the inspection fixture body (1) is provided with placement slots (5) on both sides, and magnetic plates (4) are fixed inside both sets of placement slots (5).

3. The standard shape inspection tool for seat back springs according to claim 2, characterized in that: The magnetic plate (4) has a locking groove (6) that matches the backrest spring (3) on its surface, and the surface of the magnetic plate (4) and the surface of the inspection fixture body (1) have the same unevenness.

4. The standard shape inspection tool for seat back springs according to claim 1, characterized in that: The surface of the inspection fixture body (1) is provided with mounting holes that cooperate with multiple sets of positioning magnetic blocks (7), and the mounting holes and the positioning magnetic blocks (7) have circular cross-sections.

5. The standard shape inspection tool for seat back springs according to claim 4, characterized in that: The multiple sets of positioning magnetic blocks (7) are symmetrically distributed on the top of the fixture body (1), and there are six sets of positioning magnetic blocks (7).

6. The standard shape inspection tool for seat back springs according to claim 1, characterized in that: The number of the standard placement grooves (2) is two sets, and the two sets of standard placement grooves (2) have curved parts with an "S" shaped cross section.

7. The standard shape inspection tool for seat back springs according to claim 1, characterized in that: The cross-section at the bottom of the inspection fixture body (1) is wavy.

Images