Notch broaching machine for impact sample of rubber support

Abstract

The utility model relates to a rubber support impact sample notch broaching machine, and aims to solve the problems that a plurality of L-shaped limiting plates in the device are detachably mounted on two sides of a tool post through a plurality of bolts, and different L-shaped limiting plates need to be replaced when samples with different specifications are processed; the technical problems that the production cost of an L-shaped limiting plate is increased, and meanwhile the disassembly complexity is increased due to the fixing mode of a plurality of bolts are solved, the L-shaped limiting plate comprises a machine box, a cutting mechanism is arranged in the middle of the machine box, and a first adjusting mechanism is arranged on the surface of the machine box. At the moment, a group of movable frames symmetrically arranged on the surfaces of the positive and negative screw rods are far away from or close to each other, so that the distance between a group of second adjusting mechanisms on the same vertical side is adjusted, and the two sides of rubber support sample bodies with different specifications can be conveniently matched and attached; the applicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of notch broaching machines, in particular to a notch broaching machine for rubber bearing impact specimens. Background Art

[0002] A rubber bearing is a supporting component used to support the weight of a container or equipment and fix it in a certain position. It also needs to bear the vibration and seismic loads during operation. A plate rubber bearing is a bridge bearing product formed by inlaying, bonding, and vulcanizing multiple layers of natural rubber and at least two layers of thin steel plates with the same thickness. A notch broaching machine for impact specimens is a device for processing notches of Charpy impact specimens. The broaching machine drives a broach to cut the specimen through a driving device to form a V-shaped or U-shaped notch in the middle of the side wall of the specimen. In the processing of some rubber bearings, it is also necessary to use a notch broaching machine to process specimen notches.

[0003] The patent number CN221134284U discloses a notch broaching machine for impact specimens, which restricts the specimen between an L-shaped limiting plate and a tool post to avoid specimen displacement and improve the processing accuracy of the notch. It includes a machine case, a top cover, a hydraulic cylinder, a tool post, and a broach. The top cover is arranged on the top of the machine case. The fixed end of the hydraulic cylinder is installed in the machine case. The tool post is vertically installed at the top of the piston rod of the hydraulic cylinder. Broaches are installed on both sides of the tool post. It also includes four L-shaped limiting plates and two clamping mechanisms. The two clamping mechanisms are installed on the top cover and are symmetrically arranged on both sides of the tool post. The two clamping mechanisms symmetrically clamp multiple specimens. The L-shaped limiting plates are provided with vertical side plates and horizontal plates. The side plates of the four L-shaped limiting plates are symmetrically installed on both sides of the tool post respectively. The inner side walls of the horizontal plates of the four L-shaped limiting plates are in sliding contact with the outer side walls of the two specimens respectively. The horizontal plates of the four L-shaped limiting plates avoid the two clamping mechanisms.

[0004] However, the above-mentioned notch broaching machine for impact specimens still has the following deficiencies:

[0005] Although in the above device, multiple specimens are restricted between the tool post and the horizontal plates of the four L-shaped limiting plates to avoid small displacements of the multiple specimens caused by the lateral component forces of the broach and improve the processing accuracy of the notch, the four L-shaped limiting plates are detachably installed on both sides of the tool post through multiple bolts. When processing specimens of different specifications, different L-shaped limiting plates need to be replaced, which increases the production cost of the L-shaped limiting plates and the fixing method of multiple bolts increases the complexity of disassembly. In view of this, we propose a notch broaching machine for rubber bearing impact specimens. Summary of the Utility Model

[0006] The purpose of the present utility model is to overcome the deficiencies of the prior art, meet the actual needs, and provide a notch broaching machine for rubber bearing impact specimens, so as to solve the technical problems that multiple L-shaped limit plates are detachably installed on both sides of the tool post through multiple bolts in the above device. When processing specimens of different specifications, different L-shaped limit plates need to be replaced, which increases the production cost of the L-shaped limit plates and the fixing method of multiple bolts increases the complexity of disassembly.

[0007] To achieve the purpose of the present utility model, the technical solution adopted by the present utility model is as follows: Design a notch broaching machine for rubber bearing impact specimens, including a machine case. A cutting mechanism is provided in the middle of the machine case. A first adjustment mechanism is provided on the surface of the machine case. Two groups of second adjustment mechanisms are symmetrically arranged inside the first adjustment mechanism. A rubber bearing specimen body is clamped inside a group of second adjustment mechanisms on the same vertical side. A group of L-shaped frames are attached to the bottom of the rubber bearing specimen body. The L-shaped frames are fixedly connected to the top surface of the machine case.

[0008] The first adjustment mechanism includes fixing plates. Both groups of fixing plates are fixed to the top surface of the machine case. A positive and negative lead screw is arranged between a group of fixing plates on the same vertical side. A group of movable frames are symmetrically sleeved on the surface of the positive and negative lead screw. One end of each of the positive and negative lead screws is fixedly connected with a driving wheel and a driven wheel respectively. A transmission belt is sleeved outside the driving wheel and the driven wheel. One end of the driving wheel away from the positive and negative lead screw is connected with a micro motor.

[0009] Preferably, the convex block at the bottom of the movable frame is clamped inside the top of the machine case, and a chute matching the convex block at the bottom of the movable frame is opened inside the top of the machine case.

[0010] Preferably, the micro motor, the driving wheel, the transmission belt and the driven wheel form a transmission structure.

[0011] Preferably, the cutting mechanism includes a driving motor. The driving motor is clamped at the bottom end inside the machine case. The movable end of the driving motor is connected with a long lead screw. A tool post is sleeved on the outside of the long lead screw. The tool post is clamped inside the top of the machine case. Broaching tools are matched and clamped inside both sides of the tool post. A positioning rod is fixedly connected to the top of the broaching tool. The positioning rod and the tool post are connected by bolts.

[0012] Preferably, the second adjustment mechanism includes a micro cylinder. The micro cylinder is fixedly embedded inside the movable frame. The movable end of the micro cylinder is connected with a limit plate. A convex plate is integrally formed on the surface of the limit plate. An adjustment screw rod penetrates through the top of the limit plate. A rotating block is fixedly connected to the top of the adjustment screw rod. A hollow frame is sleeved outside the bottom of the adjustment screw rod. A pressing block is fixedly connected to the bottom of the hollow frame.

[0013] Preferably, a limit groove matching the pressing block is opened inside the limit plate, and the limit plate and the adjustment screw rod are in threaded connection.

[0014] Preferably, the bottom of the adjusting screw is movably engaged inside the hollow frame, and a plurality of grooves are formed on the surface of the rotating block fixedly connected to the top of the adjusting screw.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. The present utility model effectively drives the driving wheel to rotate through the micro motor, so that the transmission belt drives the driven wheel to rotate, facilitating the simultaneous rotation of a group of positive and negative lead screws. At this time, a group of movable frames symmetrically arranged on the surface of the positive and negative lead screws move away from or close to each other, thereby adjusting the distance between a group of second adjusting mechanisms on the same vertical side, facilitating the adaptation and fitting of both sides of rubber bearing test specimens of different specifications, and improving applicability.

[0017] 2. The present utility model effectively drives the limiting plate to move through the micro cylinder, so that the convex plate on the surface of the limiting plate fits the surface of the rubber bearing test specimen. Then, the rotating block is rotated to drive the adjusting screw to adjust in height, thereby driving the pressing block to adjust in height, facilitating the pressing block to fit the top of the rubber bearing test specimen. At the same time, in cooperation with the L-shaped frame, the rubber bearing test specimen can be limited in all directions, reducing the offset of the rubber bearing test specimen during the processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic diagram of the internal structure of the chassis of the present utility model;

[0020] Figure 3 is a schematic diagram of the partial split structure of the cutting mechanism of the present utility model;

[0021] Figure 4 is a schematic diagram of the partial three-dimensional structure of the present utility model;

[0022] Figure 5 is a schematic diagram of the adjusting state structure of the tool post of the present utility model;

[0023] Figure 6 is a schematic diagram of the three-dimensional structure of the first adjusting mechanism and the second adjusting mechanism of the present utility model;

[0024] Figure 7 is a schematic diagram of the partial split structure of the second adjusting mechanism of the present utility model;

[0025] In the figure: 1, chassis; 2, cutting mechanism; 3, first adjusting mechanism; 4, second adjusting mechanism; 5, rubber bearing test specimen; 6, L-shaped frame;

[0026] 201. Driving motor; 202. Long screw rod; 203. Tool post; 204. Broach; 205. Positioning rod; 206. Bolt;

[0027] 301. Fixed plate; 302. Positive and negative lead screw; 303. Movable frame; 304. Driving wheel; 305. Driven wheel; 306. Transmission belt; 307. Micro motor;

[0028] 401. Micro cylinder; 402. Limiting plate; 403. Convex plate; 404. Adjusting screw rod; 405. Rotating block; 406. Hollow frame; 407. Pressing block. Specific embodiments

[0029] The present invention will be further described below in conjunction with the drawings and embodiments:

[0030] A notching broach for rubber bearing impact specimens, see Figures 1 to 7 , including a machine case 1, a cutting mechanism 2 is provided in the middle of the machine case 1, a first adjusting mechanism 3 is provided on the surface of the machine case 1, and two groups of second adjusting mechanisms 4 are symmetrically arranged inside the first adjusting mechanism 3. A rubber bearing specimen body 5 is clamped inside a group of second adjusting mechanisms 4 on the same vertical side. A group of L-shaped frames 6 are attached to the bottom of the rubber bearing specimen body 5, and the L-shaped frames 6 are fixedly connected to the top surface of the machine case 1;

[0031] The first adjusting mechanism 3 includes a fixed plate 301. Both groups of fixed plates 301 are fixed on the top surface of the machine case 1. A positive and negative lead screw 302 is arranged between a group of fixed plates 301 on the same vertical side. A group of movable frames 303 are symmetrically sleeved on the surface of the positive and negative lead screw 302. Among them, the convex block at the bottom of the movable frame 303 is clamped inside the top of the machine case 1, and a chute matching the convex block at the bottom of the movable frame 303 is opened inside the top of the machine case 1. One end of a group of positive and negative lead screws 302 is respectively fixedly connected with a driving wheel 304 and a driven wheel 305. A transmission belt 306 is sleeved outside the driving wheel 304 and the driven wheel 305. One end of the driving wheel 304 far from the positive and negative lead screw 302 is connected with a micro motor 307. Further, the micro motor 307, the driving wheel 304, the transmission belt 306 and the driven wheel 305 form a transmission structure. The present invention effectively drives the driving wheel 304 to rotate through the micro motor 307, so that the transmission belt 306 drives the driven wheel 305 to rotate, facilitating the simultaneous rotation of a group of positive and negative lead screws 302. At this time, a group of movable frames 303 symmetrically arranged on the surface of the positive and negative lead screw 302 move away from or close to each other, so as to adjust the distance between a group of second adjusting mechanisms 4 on the same vertical side, facilitating the adaptation and fitting of both sides of rubber bearing specimen bodies 5 of different specifications, and improving the applicability.

[0032] It should be noted that the cutting mechanism 2 includes a driving motor 201, the driving motor 201 is clamped to the inner bottom end of the chassis 1, the movable end of the driving motor 201 is connected with a long screw rod 202, a tool post 203 is sleeved on the outer thread of the long screw rod 202, the tool post 203 is clamped to the inner side of the top of the chassis 1, broaching tools 204 are matched and clamped inside both sides of the tool post 203, a positioning rod 205 is fixedly connected to the top of the broaching tool 204, and the positioning rod 205 is connected to the tool post 203 through a bolt 206. The utility model effectively drives the long screw rod 202 to rotate through the driving motor 201, thereby driving the tool post 203 to move vertically, so that the broaching tools 204 on both sides of the tool post 203 cut the rubber bearing test sample body 5.

[0033] It should be explained that the second adjusting mechanism 4 includes a micro cylinder 401, the micro cylinder 401 is fixedly embedded in the movable frame 303, the movable end of the micro cylinder 401 is connected with a limiting plate 402, a convex plate 403 is integrally formed on the surface of the limiting plate 402, an adjusting screw rod 404 penetrates through the top of the limiting plate 402, a rotating block 405 is fixedly connected to the top of the adjusting screw rod 404, a hollow frame 406 is sleeved on the outer side of the bottom of the adjusting screw rod 404, further, the bottom of the adjusting screw rod 404 is movably clamped inside the hollow frame 406, a plurality of grooves are formed on the surface of the rotating block 405 fixedly connected to the top of the adjusting screw rod 404, and a pressing block 407 is fixedly connected to the bottom of the hollow frame 406. Among them, a limiting groove matched with the pressing block 407 is formed inside the limiting plate 402, and the limiting plate 402 and the adjusting screw rod 404 are in threaded connection. The utility model effectively drives the limiting plate 402 to move through the micro cylinder 401, so that the convex plate 403 on the surface of the limiting plate 402 fits the surface of the rubber bearing test sample body 5, and then rotates the rotating block 405 to drive the adjusting screw rod 404 to adjust the height, thereby driving the pressing block 407 to adjust the height, facilitating the pressing block 407 to fit the top of the rubber bearing test sample body 5, and cooperating with the L-shaped frame 6, the rubber bearing test sample body 5 can be limited in all directions, reducing the offset of the rubber bearing test sample body 5 during the processing.

[0034] Working principle: Place the rubber bearing test sample body 5 to be processed on the surface of the L-shaped frame 6. Then, drive the driving wheel 304 to rotate through the micro-motor 307, so that the transmission belt 306 drives the driven wheel 305 to rotate, facilitating the simultaneous rotation of a group of left-right threaded rods 302. At this time, a group of movable frames 303 symmetrically arranged on the surface of the left-right threaded rods 302 move away from or close to each other, thereby adjusting the distance between a group of second adjusting mechanisms 4 on the same vertical side, facilitating the limiting plate 402 to fit and adhere to both sides of the rubber bearing test sample body 5 to be processed. Then, drive the limiting plate 402 to move through the micro-cylinder 401, so that the convex plate 403 on the surface of the limiting plate 402 fits the surface of the rubber bearing test sample body 5. Then, rotate the rotating block 405 to drive the adjusting screw 404 to adjust the height, thereby driving the pressing block 407 to adjust the height, so that the pressing block 407 fits the top of the rubber bearing test sample body 5. At the same time, in cooperation with the L-shaped frame 6, the rubber bearing test sample body 5 can be limited in all directions. Then, drive the long screw 202 to rotate through the driving motor 201, thereby driving the cutter post 203 to move vertically, so that the broaches 204 on both sides of the cutter post 203 cut the rubber bearing test sample body 5.

[0035] The embodiments disclosed in this utility model are preferred embodiments, but not limited thereto. Those of ordinary skill in the art can easily understand the spirit of this utility model according to the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of this utility model, they are within the protection scope of this utility model.

Claims

1. A rubber bearing impact specimen notch broaching machine, comprising a chassis (1), characterized in that: A cutting mechanism (2) is provided in the middle of the chassis (1), a first adjustment mechanism (3) is provided on the surface of the chassis (1), two groups of second adjustment mechanisms (4) are symmetrically arranged inside the first adjustment mechanism (3), a rubber bearing sample body (5) is clamped inside a group of the second adjustment mechanisms (4) on the same vertical side, a group of L-shaped frames (6) are attached to the bottom of the rubber bearing sample body (5), and the L-shaped frames (6) are fixedly connected to the top surface of the chassis (1); The first adjustment mechanism (3) comprises a fixing plate (301), two groups of the fixing plates (301) are fixed to the top surface of the chassis (1), a forward and reverse screw rod (302) is arranged between the fixing plates (301) on the same vertical side, a group of movable frames (303) are symmetrically threadedly sleeved on the surface of the forward and reverse screw rod (302), a driving wheel (304) and a driven wheel (305) are respectively fixedly connected to the ends of the forward and reverse screw rods (302), a transmission belt (306) is sleeved on the outside of the driving wheel (304) and the driven wheel (305), and a micro motor (307) is connected to the end of the driving wheel (304) away from the forward and reverse screw rod (302).

2. A rubber bearing impact specimen notch broaching machine as claimed in claim 1, characterized in that: The bottom protrusion of the movable frame (303) is engaged with the inner side of the top of the chassis (1), and a sliding groove matching the bottom protrusion of the movable frame (303) is provided on the inner side of the top of the chassis (1).

3. A rubber bearing impact specimen notch broaching machine as claimed in claim 1, characterized in that: The micro motor (307) forms a transmission structure through a driving wheel (304), a transmission belt (306) and a driven wheel (305).

4. A rubber bearing impact specimen notch broaching machine as claimed in claim 1, characterized in that: The cutting mechanism (2) comprises a driving motor (201), the driving motor (201) is engaged with the bottom end of the chassis (1), the movable end of the driving motor (201) is connected to a long screw rod (202), the external thread sleeve of the long screw rod (202) is provided with a knife column (203), the knife column (203) is engaged with the inner side of the top of the chassis (1), the two sides of the knife column (203) are matched with a broach (204), the top of the broach (204) is fixedly connected with a positioning rod (205), and the positioning rod (205) and the knife column (203) are connected by a bolt (206).

5. A rubber bearing impact specimen notch broaching machine as claimed in claim 1, characterized in that: The second adjustment mechanism (4) comprises a micro cylinder (401), the micro cylinder (401) is fixedly embedded in the movable frame (303), the movable end of the micro cylinder (401) is connected to a limit plate (402), the surface of the limit plate (402) is integrally formed with a convex plate (403), the top of the limit plate (402) is penetrated by an adjustment screw (404), the top of the adjustment screw (404) is fixedly connected to a rotating block (405), the bottom outer side of the adjustment screw (404) is sleeved with a hollow frame (406), and the bottom of the hollow frame (406) is fixedly connected to a pressure block (407).

6. A rubber bearing impact specimen notch broaching machine as claimed in claim 5, characterized in that: A limiting groove matching the pressing block (407) is provided on the inner side of the limiting plate (402), and the limiting plate (402) and the adjusting screw (404) are threadedly connected.

7. A rubber bearing impact specimen notch broaching machine as claimed in claim 5, characterized in that: The bottom of the adjusting screw (404) is movably engaged in the hollow frame (406), and a plurality of grooves are formed on the surface of the rotating block (405) fixed to the top of the adjusting screw (404).

Images