Engineering material tension detection equipment with replaceable clamp

Abstract

A clamping mechanism comprises a mounting frame, a worm gear is rotatably connected to the middle of the outer wall of the mounting frame, the worm gear is located at the position of a rotating shaft, penetrates through the mounting frame and is fixedly connected with a rotating disc, and the outer side edge of the rotating disc is rotatably connected with the inner wall of the mounting frame. A plurality of guide grooves are formed in the inner wall of the mounting frame and located on the outer side of the worm gear, moving sleeves are slidably connected to the inner walls of the guide grooves, screws are connected to the ends, away from the guide grooves, of the moving sleeves in a penetrating mode, nuts are connected to the outer walls of the screws and located on the two sides of the moving sleeves in a threaded mode, and the outer walls of the nuts abut against the moving sleeves; a clamping plate is fixedly connected to one end of the screw rod, a winding hole is formed in the other end of the screw rod, and the screw rod is fixed to different positions in the movable sleeve by screwing a nut on the outer side of the screw rod, so that the length of the end, extending out of the clamping engineering material, of the screw rod is changed, and then engineering materials of different shapes can be clamped conveniently.

Description

Technical Field

[0001] This utility model relates to the field of materials testing technology, specifically to a tensile testing device for engineering materials with replaceable fixtures. Background Technology

[0002] Tensile testing of engineering materials is a widely used testing method in the fields of materials science and engineering. It involves applying axial tensile force to a material sample, causing it to deform until it breaks, thereby evaluating the mechanical properties of the material. The basic principle of this testing method is to measure the tensile force and corresponding deformation of the sample during the tensile process, and then obtain the stress and strain curves of the material.

[0003] Existing material tensile testing equipment typically uses a single clamping mechanism that is inconvenient to replace and adjust, making it difficult to fix engineering materials of different shapes or sizes. Therefore, a tensile testing equipment for engineering materials with replaceable clamps is proposed to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is as follows: it is difficult to fix engineering materials of different shapes or sizes.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A tensile testing device for engineering materials with replaceable clamps includes a testing device body, the testing device body includes a base, a frame is mounted on the top outer side of the base, a movable crossbeam is slidably connected to the inner side of the frame, and a clamping mechanism is provided at the bottom of the movable crossbeam and the top of the base.

[0007] Also includes:

[0008] The clamping mechanism includes a mounting frame, a worm gear is rotatably connected to the middle of the outer wall of the mounting frame, the worm gear passes through the mounting frame at the pivot and is fixedly connected to a rotating disk, and the outer edge of the rotating disk is rotatably connected to the inner wall of the mounting frame.

[0009] The inner wall of the mounting frame and the outer side of the worm gear are provided with a number of guide grooves. The length direction of each guide groove is towards the center of the worm gear, and the inner wall of each guide groove is slidably connected with a movable sleeve. The end of the movable sleeve located away from the guide groove extends to the outer side of the mounting frame.

[0010] The movable sleeve has a screw rod connected through it at the end away from the guide groove. Nuts are threaded onto the outer wall of the screw rod on both sides of the movable sleeve, and the outer wall of the nuts abuts against the movable sleeve. A clamping plate is fixedly connected to one end of the screw rod, and a winding hole is opened at the other end of the screw rod.

[0011] As a further embodiment of this utility model: a first washer is fixedly connected to the side of the clamping plate away from the screw, and a second washer is fixedly connected to the outer wall of the screw on the side near the winding hole.

[0012] As a further embodiment of this utility model: an extrusion groove is provided on the surface of the rotating disk and near each guide groove. The length direction of the extrusion groove is not consistent with the length direction of the adjacent guide groove, and the inner wall of each extrusion groove is slidably connected to the movable sleeve.

[0013] As a further embodiment of this utility model: a connecting frame is fixedly installed on the outer wall of the mounting frame and on the outside of the worm gear; a worm is rotatably connected to the inner side wall of the connecting frame; one end of the worm extends to the outside of the connecting frame and is fixedly connected to a knob; and the side of the worm is connected to the worm gear.

[0014] As a further embodiment of this utility model: two sets of connecting frames are provided, one set of connecting frames is fixedly installed to the middle of the top surface of the base, and the other set of connecting frames is fixedly installed to the middle of the bottom surface of the moving crossbeam. Both sets of connecting frames are located on the same vertical line.

[0015] As a further embodiment of this utility model: an arc-shaped frame is fixedly installed on the top surface of the base and on the outside of the connecting frame, and several pulleys are rotatably connected to the upper and lower ends of the inner wall of the arc-shaped frame.

[0016] As a further embodiment of this utility model: the inner wall of the arc-shaped frame is also fitted with a splash guard, the top and bottom surfaces of the splash guard are slidably connected to the pulley, and one side of the splash guard extends to the outside of the arc-shaped frame and is fixedly connected to a handle.

[0017] The beneficial effects of this utility model are:

[0018] (1) This utility model uses multiple screws to clamp the side of the engineering material to be tested. The screws are installed inside the movable sleeve. By tightening the nuts on the outside of the screws, the screws can be fixed in different positions inside the movable sleeve, thereby changing the length of the screws extending out to clamp the engineering material, thus facilitating the clamping of engineering materials of different shapes.

[0019] (2) The screw has a winding hole and a clamping plate at both ends. The clamping plate can be used to hold the engineering material with a large surface area, while the winding hole can bind the wire-like engineering material. One end of the screw is also set to be arc-shaped. When multiple screws are used together, it is convenient to hold the surface of irregular engineering materials. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a top view sectional diagram of the arc-shaped frame structure in this utility model;

[0023] Figure 3 This is a schematic diagram of the overall structure of the mounting frame in this utility model;

[0024] Figure 4 yes Figure 3 A cross-sectional view of the mounting frame.

[0025] Figure 5 yes Figure 3 A schematic diagram of the overall structure of the rotating disk in the mounting frame;

[0026] Figure 6 yes Figure 3 A schematic diagram of the rear view structure of the mounting frame;

[0027] Figure 7 This is a schematic diagram of the overall structure of the movable sleeve in this utility model.

[0028] In the diagram: 1. Main body of the testing equipment; 101. Base; 102. Frame; 103. Moving crossbeam; 104. Arc frame; 105. Pulley; 106. Splash guard; 107. Handle; 2. Clamping mechanism; 201. Mounting frame; 202. Connecting frame; 203. Worm gear; 204. Knob; 205. Worm wheel; 206. Rotating disk; 207. Extrusion groove; 208. Guide groove; 209. Moving sleeve; 210. Screw; 211. Nut; 212. Clamping plate; 213. Gasket 1; 214. Gasket 2; 215. Winding hole. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] like Figure 1-7As shown, a tensile testing device for engineering materials with replaceable clamps includes a testing device body 1, which includes a base 101. A frame 102 is mounted on the outer top of the base 101, and a movable crossbeam 103 is slidably connected to the inner side of the frame 102. Clamping mechanisms 2 are provided at the bottom of the movable crossbeam 103 and the top of the base 101. The device also includes a clamping mechanism 2 comprising a mounting frame 201. A worm gear 205 is rotatably connected to the middle of the outer wall of the mounting frame 201. The worm gear 205 passes through the mounting frame 201 at a pivot point and is fixedly connected to a rotating disk 206. The outer edge of the rotating disk 206 is rotatably connected to the inner wall of the mounting frame 201. The inner wall of the mounting frame 201 and... Several guide grooves 208 are provided on the outer side of the worm gear 205. The length direction of each guide groove 208 is towards the center of the worm gear 205, and a movable sleeve 209 is slidably connected to the inner wall of each guide groove 208. The end of the movable sleeve 209 located away from the guide groove 208 extends to the outer side of the mounting frame 201. A screw 210 is connected through the movable sleeve 209 at the end away from the guide groove 208. Nuts 211 are threadedly connected to the outer wall of the screw 210 and on both sides of the movable sleeve 209, and the outer wall of the nuts 211 abuts against the movable sleeve 209. A clamping plate 212 is fixedly connected to one end of the screw 210, and a winding hole 215 is provided at the other end of the screw 210. Figure 7 As shown, the nut 211 is tightened along the surface of the screw 210, so that the nut 211 is pressed against both sides of the movable sleeve 209, thereby keeping the screw 210 and the movable sleeve 209 relatively fixed.

[0031] A washer 213 is fixedly connected to the side of the clamping plate 212 away from the screw 210, and a washer 214 is fixedly connected to the outer wall of the screw 210 on the side near the winding hole 215. Figure 7 As shown, both gasket 1 (213) and gasket 2 (214) are made of rubber.

[0032] A pressing groove 207 is formed on the surface of the rotating disk 206 near each guide groove 208. The length direction of the pressing groove 207 is not consistent with the length direction of the adjacent guide groove 208, and the inner wall of each pressing groove 207 is slidably connected to the movable sleeve 209. Figures 3-5 As shown, the rotating disk 206 rotates along the inner side of the mounting frame 201, and the extrusion groove 207 pushes the moving sleeve 209 to move along the guide groove 208;

[0033] A connecting bracket 202 is fixedly mounted on the outer wall of the mounting frame 201, located outside the worm gear 205. A worm 203 is rotatably connected to the inner wall of the connecting bracket 202. One end of the worm 203 extends to the outer side of the connecting bracket 202 and is fixedly connected to a knob 204. The side of the worm 203 is engaged with the worm gear 205. Figure 6 As shown, in a static state, a self-locking mechanism is formed between the worm gear 205 and the worm 203;

[0034] Two sets of connecting frames 202 are provided. One set of connecting frames 202 is fixedly installed to the center of the top surface of the base 101, while the other set of connecting frames 202 is fixedly installed to the center of the bottom surface of the movable crossbeam 103. Both sets of connecting frames 202 are located on the same vertical line. An arc-shaped frame 104 is fixedly installed on the top surface of the base 101 and outside the connecting frames 202. Several pulleys 105 are rotatably connected to the upper and lower ends of the inner wall of the arc-shaped frame 104. A splash guard 106 is also fitted onto the inner wall of the arc-shaped frame 104. The top and bottom surfaces of the splash guard 106 are slidably connected to the pulleys 105. One side of the splash guard 106 extends to the outside of the arc-shaped frame 104 and is fixedly connected to a handle 107. Figure 1-Figure 2 As shown, the arc-shaped frame 104 prevents the engineering material from cracking during testing and prevents debris from splashing outside the device.

[0035] The working principle of this utility model:

[0036] Rotating the knob 204 causes the worm gear 203 to rotate, which in turn pushes the worm wheel 205 to rotate. The rotating disk 206 rotates along the inner side of the mounting frame 201, and the extrusion groove 207 pushes the movable sleeve 209 to move along the guide groove 208. When the screw 210 is installed inside the movable sleeve 209, the spacing between the screws 210 can be adjusted by the knob 204, thereby clamping the engineering material.

[0037] Both the first washer 213 and the second washer 214 on both sides of the screw 210 can prevent damage to the surface of the engineering material. When fixing the engineering material in the form of thread, the engineering material can be bound to the inside of the winding hole 215. In addition, after fixing the two ends of the engineering material to the clamping mechanism 2 below the moving crossbeam 103 and above the base 101 respectively, the handle 107 is pulled to pull the splash guard 106 out of the arc frame 104, thereby preventing the engineering material from cracking during the test and preventing debris from splashing to the outside of the device.

[0038] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A tensile testing device for engineering materials with replaceable clamps, comprising a testing device body (1), the testing device body (1) comprising a base (101), a frame (102) mounted on the top outer side of the base (101), a movable crossbeam (103) slidably connected to the inner side of the frame (102), and a clamping mechanism (2) provided at the bottom of the movable crossbeam (103) and the top of the base (101); Its features are, Also includes: The clamping mechanism (2) includes a mounting frame (201), a worm gear (205) is rotatably connected to the middle of the outer wall of the mounting frame (201), the worm gear (205) passes through the mounting frame (201) at the pivot and is fixedly connected to a rotating disk (206), and the outer edge of the rotating disk (206) is rotatably connected to the inner wall of the mounting frame (201). The inner wall of the mounting frame (201) and the outer side of the worm gear (205) are provided with a number of guide grooves (208). The length direction of each guide groove (208) is towards the center of the worm gear (205), and the inner wall of each guide groove (208) is slidably connected with a movable sleeve (209). The end of the movable sleeve (209) located away from the guide groove (208) extends to the outer side of the mounting frame (201). The movable sleeve (209) is connected to a screw (210) at the end away from the guide groove (208). Nuts (211) are threadedly connected to the outer wall of the screw (210) and on both sides of the movable sleeve (209). The outer wall of the nut (211) abuts against the movable sleeve (209). A clamping plate (212) is fixedly connected to one end of the screw (210), and a winding hole (215) is opened at the other end of the screw (210).

2. The tensile testing device for engineering materials with replaceable fixtures according to claim 1, characterized in that, The clamping plate (212) is fixedly connected to a gasket one (213) on the side away from the screw (210), and a gasket two (214) is fixedly connected to the outer wall of the screw (210) on the side near the winding hole (215).

3. The tensile testing device for engineering materials with replaceable fixtures according to claim 2, characterized in that, The rotating disk (206) has extrusion grooves (207) on its surface and near each guide groove (208). The length direction of the extrusion groove (207) is not consistent with the length direction of the adjacent guide groove (208), and the inner wall of each extrusion groove (207) is slidably connected to the movable sleeve (209).

4. The tensile testing device for engineering materials with replaceable fixtures according to claim 3, characterized in that, A connecting frame (202) is fixedly installed on the outer wall of the mounting frame (201) and on the outside of the worm gear (205). A worm (203) is rotatably connected to the inner wall of the connecting frame (202). One end of the worm (203) extends to the outside of the connecting frame (202) and is fixedly connected to a knob (204). The side of the worm (203) is engaged with the worm gear (205).

5. The tensile testing device for engineering materials with replaceable fixtures according to claim 4, characterized in that, Two sets of the connecting frame (202) are provided. One set of the connecting frame (202) is fixedly installed at the middle of the top surface of the base (101), while the other set of the connecting frame (202) is fixedly installed at the middle of the bottom surface of the moving crossbeam (103). Both sets of the connecting frame (202) are located on the same vertical line.

6. The tensile testing device for engineering materials with replaceable fixtures according to claim 5, characterized in that, An arc-shaped frame (104) is fixedly installed on the top surface of the base (101) and on the outside of the connecting frame (202). Several pulleys (105) are rotatably connected to the upper and lower ends of the inner wall of the arc-shaped frame (104).

7. The tensile testing device for engineering materials with replaceable fixtures according to claim 6, characterized in that, The inner wall of the arc frame (104) is also fitted with a splash guard (106). The top and bottom surfaces of the splash guard (106) are slidably connected to the pulley (105). One side of the splash guard (106) extends to the outside of the arc frame (104) and is fixedly connected to a handle (107).

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