Lead paste strength testing tool

Abstract

The utility model relates to a lead plaster strength testing tool. Belongs to the technical field of lead-acid storage batteries. The device is mainly used for testing and evaluating the strength of the lead plaster of a cured and dried dry raw plate or a formed cooked polar plate. The device is mainly characterized by comprising a polar plate clamp, a pneumatic impactor, an impactor support frame and a base, wherein the polar plate clamp is used for mounting and fixing a polar plate to be tested and is transversely and slidably mounted on the base; and the pneumatic impactor is longitudinally mounted and fixed on the base through the impactor support frame and is matched with the polar plate clamp. The device has the characteristics of being capable of quantitatively and accurately testing the lead plaster strength of the to-be-tested polar plate and testing the lead plaster strength critical value, and is mainly used for rapidly and accurately measuring the lead plaster impact resistance of a cured and dried dry raw plate or a formed cooked polar plate, evaluating the bonding strength of the dry raw plate lead plaster and the cooked polar plate lead plaster and improving the lead plaster impact resistance of the dry raw plate and the cooked polar plate. And indirectly evaluating the curing effect of the dry raw plate and the vibration resistance of the polar plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of lead-acid batteries, and particularly relates to a lead paste strength test tooling. Background Art

[0002] At present, the lead paste strength test in the lead-acid battery industry mainly uses the method of dropping. The plate is dropped from a fixed height (onto the ground or the workbench surface) a certain number of times, the weights of the plate before and after dropping are weighed, and the proportion of the dropped lead paste in the total weight of the plate is calculated. The less the lead paste falls off, the better the dropping strength of the plate; the more the lead paste falls off, the worse the dropping strength of the plate. The disadvantage of this method is that when the plate drops, it is impossible to hit the ground or the workbench surface flatly. Always some parts or the edge parts of the plate first contact and hit the ground or the workbench surface, causing the plate to deform. In addition, after the plate is cured and dried, or after formation, it generally undergoes slight deformation. When using the dropping method, always some parts first contact and hit. Therefore, this method is not convenient for accurately evaluating the lead paste strength, especially not convenient for distinguishing the bonding strength of the lead paste at different parts of the plate. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the above deficiencies and provide a lead paste strength test tooling, which can adjust the force of hitting the lead paste of the plate, so as to test the critical value of the lead paste strength and make the test result more quantitative and accurate. This tooling can also accurately test and evaluate the strength of the lead paste at different parts of the plate.

[0004] In order to achieve the above purpose, the technical solution of the utility model is: a lead paste strength test tooling, which is characterized in that: it is composed of a plate fixture, a pneumatic impactor, an impactor support frame and a base; wherein, the plate fixture is used for installing and fixing the plate to be tested, and is horizontally slidably installed on the base; the pneumatic impactor is longitudinally installed and fixed on the base through the impactor support frame and is matched with the plate fixture.

[0005] In the technical solution of the utility model, the pneumatic impactor is composed of a cylinder, a telescopic striker and a pipeline; the head of the striker is a plane; the pipeline is connected with compressed air.

[0006] In the technical solution of the utility model, a pressure regulating valve and a pressure display meter are installed on the pipeline.

[0007] In the technical solution of the utility model, the striker is marked with scales.

[0008] In the technical solution of the present utility model, the plate fixture is composed of a plate support frame, a fastening frame, fastening bolts and nuts, and a slide rail; the plate support frame and the fastening frame are rectangular frames that are clamped and fitted with the edges of the plate to be tested; the fastening bolts and nuts are arranged on the two vertical frames of the plate support frame and the fastening frame; the slide rail includes a first slide rail, which is horizontally fixed on the base, and the plate support frame and the fastening frame are matched with the first slide rail.

[0009] In the technical solution of the present utility model, inclined support rods are provided on both sides of the plate support frame; the slide rail includes a second slide rail, which is horizontally fixed on the base, and the inclined support rods are matched with the second slide rail.

[0010] In the technical solution of the present utility model, the fastening bolts and nuts are symmetrically distributed on both sides of the plate fixture.

[0011] In the technical solution of the present utility model, the number of the fastening bolts and nuts is not less than 3 pairs.

[0012] In the technical solution of the present utility model, the impactor support frame is a liftable support frame.

[0013] In the technical solution of the present utility model, the liftable support frame is composed of a hydraulic cylinder and a support plate; the hydraulic cylinder is fixed on the base, the support plate is fixed on the piston rod of the hydraulic cylinder, and the pneumatic impactor is installed and fixed on the support plate.

[0014] Since the present utility model adopts a lead paste strength test tooling composed of a plate fixture, a pneumatic impactor, an impactor support frame and a base, wherein the plate fixture is used to install and fix the plate to be tested, and is horizontally slidably installed on the base, the pneumatic impactor is longitudinally installed and fixed on the base through the impactor support frame and is matched with the plate fixture. Therefore, when testing the lead paste strength of the plate, the plate to be tested can be horizontally adjusted relative to the base so that the lead paste impact part is directly opposite to the pneumatic impactor. When the pneumatic impactor is adjusted to the set air pressure, the pneumatic impactor is started to impact the plate to be tested. The strength of the lead paste can be accurately tested and evaluated according to the states such as the lead paste at the impact point is not damaged, the lead paste at the impact point is slightly peeled off, and the lead paste at the impact point is completely peeled off after the lead paste is impacted. When testing the lead paste strength of the plate, the critical value of the lead paste strength can also be tested by adjusting different set air pressure values of the pneumatic impactor, making the test result more quantitative and accurate. When testing the lead paste strength of the plate, the pneumatic impactor can also be lifted, combined with the horizontal adjustment of the plate fixture, so that the plate to be tested has more test points.

[0015] The utility model has the characteristics of quantifiable and accurate testing of the paste strength of the plate to be tested, as well as testing the critical value of the paste strength. It is mainly used for the rapid and accurate measurement of the impact resistance of the paste of dry green plates after curing and drying or cured plates after formation, evaluating the bonding strength of the paste of dry green plates and cured plates, and indirectly evaluating the curing effect of dry green plates and the vibration resistance of plates. Brief Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the utility model.

[0017] In the figure: 1 - plate support frame; 2 - fastening frame; 3 - fastening bolts and nuts; 4 - slide rail; 5 - base; 6 - striker support frame; 7 - striker pin; 8 - cylinder; 9 - pipeline; 10 - pressure display meter; 11 - pressure regulating valve. Specific Embodiment

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figure 1 , an embodiment of a paste strength testing tooling, which is composed of a plate fixture, a pneumatic striker, a striker support frame 6, a base 5, etc.

[0020] The base 5 is in the shape of a rectangular plate.

[0021] The plate fixture is composed of a plate support frame 1, a fastening frame 2, fastening bolts and nuts 3, and a slide rail 4. Among them, the plate support frame 1 and the fastening frame 2 are rectangular frames that are clamped and matched with the edges of the plate to be tested for clamping the plate to be tested. Oblique support rods are provided on the two outer sides of the plate support frame 1 for stabilizing the plate support frame 1. The fastening bolts and nuts 3 are arranged on the vertical frames on both sides of the plate support frame 1 and are symmetrically distributed on both sides of the plate fixture, with a quantity of 3 pairs, for installing and fixing the plate to be tested. The slide rail 4 includes a first slide rail and a second slide rail. The first slide rail and the second slide rail are both horizontally fixed on the base 5. The plate support frame 1 and the fastening frame 2 are connected to the base 5 through the first slide rail, and the oblique support rods are connected to the base 5 through the second slide rail. The plate support frame 1 and the fastening frame 2 can move left and right relative to the base 5 through the first slide rail and the second slide rail.

[0022] The striker support frame 6 is a regular trapezoidal frame with a smaller upper part and a larger lower part, and is fixed on the base 5. The pneumatic striker includes a firing pin 7, a cylinder 8, and a pipeline 9. The firing pin 7 can extend or retract relative to the cylinder 8 and cooperate with the plate fixture. The pipeline 9 connects the cylinder 8 with compressed air. The cylinder 8 is longitudinally installed and fixed on the striker support frame 6. The head of the firing pin 7 is a plane (i.e., the contact part between the firing pin 7 and the plate to be tested is a plane). A pressure regulating valve 11 and a pressure display meter 10 are installed on the pipeline 9. The pressure regulating valve 11 is used to adjust the air pressure of the cylinder 8, and the pressure display meter 10 is used to display the current air pressure value of the cylinder 8. The firing pin 7 is marked with scales, and the scales on the head of the firing pin 7 start from 0, with a scale interval of 1 mm.

[0023] The striker support frame is also a liftable support frame, which consists of a hydraulic cylinder and a support plate. The hydraulic cylinder is fixed on the base 5, the support plate is fixed on the piston rod of the hydraulic cylinder, and the pneumatic striker is installed and fixed on the support plate. The height of the pneumatic striker is adjusted by adjusting the height of the support plate to measure the paste strength at different height paste test points of the plate to be tested.

[0024] Before starting the test, place the plate to be tested between the plate support frame 1 and the fastening frame 2, adjust the position of the plate to be tested (the horizontal height of the test point on the plate to be tested is adjusted to be the same as the horizontal height of the firing pin 7), and then tighten the fastening bolt nuts 3 to fix the plate to be tested on the plate support frame 1.

[0025] Horizontally move the plate to be tested on the slide rail 4 so that the test point on the plate to be tested corresponds to the firing pin 7.

[0026] Adjust the pressure regulating valve 11 so that the compressed air pressure after the valve (from the pressure regulating valve to the pneumatic striker) is within the range of the process requirement value (such as: 3.50 ± 0.02 bar, etc.). Turn on the pneumatic striker, the compressed gas enters the cylinder 8, and the firing pin 7 quickly impacts the paste of the plate to be tested fixed on the plate fixture under the push of the pressure. Record the pressure value at this time, the scale at which the firing pin 7 extends, and the state of the paste after being impacted by the firing pin, such as the paste at the impact point is not damaged, the paste at the impact point is slightly dropped, the paste at the impact point is completely fallen off, etc.

[0027] Turn off the pneumatic striker, disconnect the cylinder 8 from the compressed air supply, the pneumatic striker automatically relieves pressure, and the firing pin 7 retracts.

[0028] Then horizontally move the plate to be tested along the slide rail 4, select the next paste strength measurement point, and repeat the above measurement operation.

[0029] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

[0030] The present utility model can test the critical value of the paste strength, making the test results more quantitative and accurate. At the same time, it can also accurately test and evaluate the strength of the paste at different parts of the plate, making the evaluation results more comprehensive.

Claims

1. A lead paste strength test tooling, characterized in that: It is composed of a plate electrode fixture, a pneumatic impactor, an impactor support frame (6) and a base (5); wherein, the plate electrode fixture is used to install and fix the plate electrode to be measured and is horizontally slidably installed on the base (5); the pneumatic impactor is longitudinally installed and fixed on the base (5) through the impactor support frame (6) and is matched with the plate electrode fixture.

2. The lead paste strength testing tooling according to claim 1, wherein: The pneumatic impactor is composed of a cylinder (8), a telescopic striker (7) and a pipeline (9); the head of the striker (7) is a flat surface; the pipeline (9) is connected to compressed air.

3. The lead paste strength testing tooling according to claim 2, characterized in that: A pressure regulating valve (11) and a pressure display meter (10) are installed on the pipeline (9).

4. The lead paste strength testing tooling according to claim 3, characterized in that: The striker (7) is marked with scales.

5. A paste strength testing tooling according to any one of claims 1-4, characterized in that: The plate electrode fixture is composed of a plate electrode support frame (1), a fastening frame (2), fastening bolts and nuts (3) and a slide rail (4); the plate electrode support frame (1) and the fastening frame (2) are rectangular frames that are clamped and matched with the edges of the plate electrode to be measured; the fastening bolts and nuts (3) are arranged on the two side vertical frames of the plate electrode support frame (1) and the fastening frame (2); the slide rail (4) includes a first slide rail, which is horizontally fixed on the base (5), and the plate electrode support frame (1) and the fastening frame (2) are matched with the first slide rail.

6. The lead paste strength testing tooling according to claim 5, characterized in that: Oblique support rods are provided on both sides of the plate electrode support frame (1); the slide rail (4) includes a second slide rail, which is horizontally fixed on the base (5), and the oblique support rods are matched with the second slide rail.

7. A paste strength testing tooling according to any one of claims 1-4, 6, characterized in that: The fastening bolts and nuts (3) are symmetrically distributed on both sides of the plate electrode fixture.

8. A paste strength testing tooling according to claim 7, characterized in that: The number of the fastening bolts and nuts (3) is not less than 3 pairs.

9. A lead paste strength testing tooling according to any one of claims 1-4, 6, and 8, characterized in that: The impactor support frame (6) is a liftable support frame.

10. A paste strength testing tooling according to claim 9, characterized in that: The liftable support frame is composed of a hydraulic cylinder and a support plate; the hydraulic cylinder is fixed on the base (5), the support plate is fixed on the piston rod of the hydraulic cylinder, and the pneumatic impactor is installed and fixed on the support plate.

Images