Drop hammer impact testing machine
By introducing and installing fixture components and hammer lifting device into the hammer impact test machine, the problem of inconvenient hammer height adjustment in the prior art is solved, automatic height adjustment and precise positioning are realized, and detection accuracy and convenience of use are improved.
Patent Information
- Application Number
- CN202422292429.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The existing hammer impact test machines cannot automatically adjust the hammer height according to products of different specifications, resulting in inconvenient use and insufficient detection accuracy.
A hammer impact test machine including a mounting frame, mounting fixture assembly, hammer lifting device, hammer lifting assembly and secondary anti-secondary assembly is designed. The height of the movable plate is adjusted by handwheel to fix the workpiece, and the hammer lifting device and secondary anti-secondary assembly are used to achieve precise positioning and protection of the hammer.
It realizes automatic height adjustment of products of different specifications, improves detection accuracy and convenience of use, ensures that the upper end is consistent after each workpiece clamping, and enhances the stability and safety of detection.
Smart Images
Figure CN223179977U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of detection equipment, in particular to a falling weight impact testing machine. Background Art
[0002] The falling weight impact testing machine is used for measuring the external impact resistance of various pipes and plates. In the current falling weight impact testing machine, the height position of the product cannot be adjusted. When the falling weight is at the same height, the larger the diameter of the pipe, the smaller the distance between the falling weight and the product. It can only adapt to products of different specifications by adjusting the height position of the falling weight. For tests on products of different specifications, it is necessary to know the size of each product and then input and adjust the height position of the falling weight, which is inconvenient to use. Therefore, improvements are still needed. Content of the Utility Model
[0003] The purpose of the utility model is to provide a falling weight impact testing machine to solve the problems mentioned in the background art.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A falling weight impact testing machine, comprising a mounting frame, a mounting fixture assembly, a falling weight lifting device, a falling weight assembly and an anti-secondary impact assembly. The mounting frame includes a bottom plate and a middle plate installed above the bottom plate through support columns; a falling weight clearance hole is provided on the middle plate; the mounting fixture assembly includes a movable plate, a handwheel, a lead screw and a first guide post; at least two first guide posts are provided and fixed between the bottom plate and the middle plate; two lead screws are arranged horizontally and rotatably connected between the bottom plate and the middle plate respectively; the upper end of one of the lead screws passes through the middle plate and is connected to the handwheel; the movable plate is slidably connected to the first guide post and is in transmission connection with the lead screw through a nut; a positioning fixture is provided on the movable plate; the anti-secondary impact assembly is installed above the middle plate and beside the falling weight clearance hole; the falling weight lifting device is installed above the middle plate and is used to control the lifting of the falling weight assembly; the falling weight assembly is located above the falling weight clearance hole.
[0006] For a further description of the utility model, the positioning fixture includes two symmetrically distributed positioning inclined blocks; a V-shaped positioning groove is formed between the two positioning inclined blocks.
[0007] For a further description of the utility model, four first guide posts are provided and distributed at the four corners of the movable plate; the two lead screws are respectively located at the middle positions on the left and right sides of the movable plate.
[0008] For a further description of the present utility model, the drop hammer lifting device includes a square tube, a top plate, second guide posts, a driving assembly, and a lifting assembly; the square tube is vertically fixed above the middle plate; the top plate is fixed to the upper end of the square tube; two second guide posts are provided; the two second guide posts are distributed left and right and are fixed between the middle plate and the top plate; the lifting assembly is slidably connected to the front side of the square tube; the driving assembly is installed between the middle plate and the top plate and is connected to the lifting assembly for controlling the up and down movement of the lifting assembly; the drop hammer assembly is slidably connected between the two second guide posts.
[0009] For a further description of the present utility model, the lifting assembly includes a connecting plate, a first sensor, and an electromagnet; a slider is installed at the rear end of the connecting plate; the first sensor is installed at the front end of the connecting plate; the electromagnet is fixed to the bottom of the connecting plate; a guide rail cooperating with the slider is provided on the front side of the square tube.
[0010] For a further description of the present utility model, the drop hammer assembly includes two guide plates distributed up and down and a drop hammer vertically penetrating and installed on the two guide plates; the two ends of the two guide plates respectively abut against the second guide posts and are slidably connected to the second guide posts.
[0011] For a further description of the present utility model, the anti-secondary component includes a second inductor and two groups of clamping devices; the second inductor is fixed on the middle plate and is located in front of the drop hammer clearance hole; the two groups of clamping devices are symmetrically distributed front and back on the right side of the drop hammer clearance hole; the clamping device includes a cylinder and a clamping plate installed at the power output end of the cylinder.
[0012] The beneficial effects of the present utility model are as follows:
[0013] In this design, the workpiece is placed on the movable plate and positioned by the positioning jig, and then the movable plate is adjusted to rise by the handwheel until the workpiece contacts the middle plate, realizing the fixation of the workpiece, and ensuring that the upper end height is at the same position every time the workpiece is clamped, without the need for further adjustment, which is convenient to use and improves the detection accuracy. Description of the Drawings
[0014] Figure 1 is the overall structure diagram of the present utility model;
[0015] Figure 2 is Figure 1 the partial enlarged view of A in Detailed Embodiment
[0016] The present utility model will be further described below with reference to the drawings:
[0017] As Figure 1-2As shown in the figure, a drop hammer impact testing machine includes a mounting frame 1, a mounting fixture assembly 2, a drop hammer lifting device 3, a drop hammer assembly 4, and an anti-secondary impact assembly 5. The mounting frame 1 includes a bottom plate 11 and a middle plate 13 mounted above the bottom plate 11 through support columns 12. A drop hammer clearance hole 131 is provided on the middle plate 13. The mounting fixture assembly 2 includes a movable plate 21, a handwheel 22, a lead screw 23, and a first guide post 24. At least two first guide posts 24 are provided and fixed between the bottom plate 11 and the middle plate 13. Two lead screws 23 are arranged horizontally and rotatably connected between the bottom plate 11 and the middle plate 13 respectively. The upper end of one of the lead screws 23 passes through the middle plate 13 and is connected to the handwheel 22. The movable plate 21 is slidably connected to the first guide post 24 and is in transmission connection with the lead screw 23 through a nut. A positioning fixture 211 is provided on the movable plate 21. The anti-secondary impact assembly 5 is mounted above the middle plate 13 and beside the drop hammer clearance hole 131. The drop hammer lifting device 3 is mounted above the middle plate 13 and is used to control the lifting of the drop hammer assembly 4. The drop hammer assembly 4 is located above the drop hammer clearance hole 131. Place the workpiece on the movable plate 21 and position it through the positioning fixture 211, and then adjust the movable plate 21 to rise through the handwheel 22 until the workpiece contacts the middle plate 13, realizing the fixation of the workpiece and ensuring that the upper end height is at the same position every time the workpiece is clamped. Lift the drop hammer assembly 4 to a set height through the drop hammer lifting device 3 and then release the drop hammer assembly 4. The drop hammer assembly 4 falls and impacts the workpiece for testing. After the drop hammer assembly 4 falls, the anti-secondary impact assembly 5 clamps and fixes the drop hammer assembly 4.
[0018] The positioning fixture 211 includes two positioning inclined blocks symmetrically distributed left and right. A V-shaped positioning groove is formed between the two positioning inclined blocks. If the workpiece is a pipe, it is supported and positioned in the V-shaped positioning groove. If the workpiece is a plate, it is placed above the two positioning inclined blocks for support.
[0019] Four first guide posts 24 are provided and distributed at the four corner positions of the movable plate 21. The two lead screws 23 are respectively located at the middle positions on the left and right sides of the movable plate 21, and this structure has high stability.
[0020] The drop hammer lifting device 3 includes a square pipe 31, a top plate 32, second guide columns 33, a driving assembly 34 and a lifting assembly 35; the square pipe 31 is vertically fixed above the middle plate 13; the top plate 32 is fixed to the upper end of the square pipe 31; two second guide columns 33 are provided; the two second guide columns 33 are arranged left and right and fixed between the middle plate 13 and the top plate 32; the lifting assembly 35 is slidably connected to the front side of the square pipe 31; the driving assembly 34 is installed between the middle plate 13 and the top plate 32 and connected to the lifting assembly 35 for controlling the up and down movement of the lifting assembly 35; the drop hammer assembly 4 is slidably connected between the two second guide columns 33, the driving assembly 34 controls the lifting and lowering of the lifting assembly 35, the lifting assembly 35 is used to control the drop hammer assembly 4 to be lifted to a certain height and released, and the second guide columns 33 are used to guide and position the drop hammer assembly 4.
[0021] The lifting assembly 35 includes a connecting plate 351, a first sensor 352 and an electromagnet 353; a slider 3511 is installed at the rear end of the connecting plate 351; the first sensor 352 is installed at the front end of the connecting plate 351; the electromagnet 353 is fixed to the bottom of the connecting plate 351; a guide rail 311 cooperating with the slider 3511 is provided on the front side of the square pipe 31. When the lifting assembly 35 descends and the first sensor 352 senses the drop hammer, the electromagnet 353 is energized to magnetically attract and fix the drop hammer assembly 4. Then, after the driving assembly 34 controls the lifting assembly 35 to rise to a set height, it controls the electromagnet 353 to be powered off to release the drop hammer assembly 4, and the drop hammer assembly 4 falls for an impact experiment; the driving assembly 34 controls the up and down movement of the lifting assembly 35 by means of a reduction motor driving a synchronous belt, and the connecting plate 351 is fixedly connected to one side of the synchronous belt through a clamping plate 522.
[0022] The drop hammer assembly 4 includes two guide plates 41 distributed up and down and a drop hammer 42 vertically installed through the two guide plates 41; both ends of the two guide plates 41 are respectively abutted against the second guide columns 33 and are slidably connected to the second guide columns 33.
[0023] The anti-secondary assembly 5 includes a second inductor 51 and two groups of clamping devices 52; the second inductor 51 is fixed on the middle plate 13 and is located in front of the drop hammer clearance hole 131; the two groups of clamping devices 52 are symmetrically distributed front and back on the right side of the drop hammer clearance hole 131; the clamping device 52 includes a cylinder 521 and a clamping plate 522 installed at the power output end of the cylinder 521. When the drop hammer assembly 4 falls and the second inductor 51 senses the drop hammer 42, the two groups of clamping devices 52 clamp and fix the drop hammer assembly 4 to prevent it from falling again, achieving a protective effect.
[0024] The above description does not impose any limitation on the technical scope of the present novelty. Any modification, equivalent change, and decoration made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present novelty.
Claims
1. A drop hammer impact testing machine, comprising a mounting frame, a mounting fixture assembly, a drop hammer lifting device, a drop hammer assembly and an anti-secondary component, characterized in that: The mounting frame includes a base plate and a middle plate installed above the base plate through a support column; a drop hammer avoidance hole is provided on the middle plate; the mounting fixture assembly includes a movable plate, a handwheel, a screw and a first guide column; at least two of the first guide columns are provided and fixed between the base plate and the middle plate; two screws are distributed on the left and right and are rotatably connected between the base plate and the middle plate respectively; the upper end of one of the screws passes through the middle plate and is connected to the handwheel; the movable plate is slidably connected to the first guide column and is connected to the screw through a nut; a positioning fixture is provided on the movable plate; the anti-secondary assembly is installed above the middle plate and is located next to the drop hammer avoidance hole; the drop hammer lifting device is installed above the middle plate to control the lifting of the drop hammer assembly; the drop hammer assembly is located above the drop hammer avoidance hole.
2. The drop hammer impact testing machine according to claim 1, characterized in that: The positioning fixture includes two positioning oblique blocks that are symmetrically distributed on the left and right; a V-shaped positioning groove is formed between the two positioning oblique blocks.
3. The drop hammer impact testing machine according to claim 1, characterized in that: Four first guide pillars are provided and distributed at the four corners of the movable plate; the two screw rods are respectively located at the middle positions of the left and right sides of the movable plate.
4. The drop hammer impact testing machine according to claim 1, characterized in that: The drop hammer lifting device includes a square tube, a top plate, a second guide column, a driving assembly and a lifting assembly; the square tube is vertically fixed above the middle plate; the top plate is fixed to the upper end of the square tube; two second guide columns are provided; the two second guide columns are distributed on the left and right and fixed between the middle plate and the top plate; the lifting assembly is slidably connected to the front side of the square tube; the driving assembly is installed between the middle plate and the top plate and connected to the lifting assembly for controlling the up and down movement of the lifting assembly; the drop hammer assembly is slidably connected between the two second guide columns.
5. The drop hammer impact testing machine according to claim 4, characterized in that: The lifting assembly includes a connecting plate, a first sensor and an electromagnet; a slider is installed at the rear end of the connecting plate; the first sensor is installed at the front end of the connecting plate; the electromagnet is fixed at the bottom of the connecting plate; and a guide rail is provided on the front side of the square tube to cooperate with the slider.
6. The drop hammer impact testing machine according to claim 4, wherein: The drop hammer assembly includes two guide plates distributed up and down and a drop hammer vertically installed on the two guide plates; the two ends of the two guide plates respectively abut against the second guide pillars and are slidably connected to the second guide pillars.
7. The drop hammer impact testing machine according to claim 1, wherein: The anti-secondary component includes a second sensor and two sets of clamping devices; the second sensor is fixed on the middle plate and is located in front of the drop hammer avoidance hole; the two sets of clamping devices are symmetrically distributed front and back and are arranged on the right side of the drop hammer avoidance hole; the clamping device includes a cylinder and a clamping plate installed at the power output end of the cylinder.