Tensile machine for pressure detection of automobile parts

Abstract

The utility model relates to a tensile machine for pressure detection of automobile parts, which belongs to the technical field of tensile machines for pressure detection of automobile parts and comprises a test board, a test block is slidably connected to the top surface of the test board, an air cylinder is fixed on the inner wall of the left side of the test board, a connecting plate is fixed at the right end of the air cylinder, and the top surface of the connecting plate is fixed with the test block. A testing mechanism is arranged on the testing block; the testing mechanism comprises two fixing plates fixed to the top face of the testing table, and a clamping assembly is arranged on the right side of the testing block. According to the tensile machine for pressure detection of the automobile parts, a to-be-tested piece is placed on the left side of the test block, the air cylinder drives the test block to move leftwards for pressure test, pressure detection parameters are read through a pressure sensor arranged on the test mechanism, and furthermore, the to-be-tested piece is placed on the right side of the test block and clamped through a clamping assembly; and then the cylinder drives the test block to move leftwards for tension test, and tension detection parameters are read through the pressure sensor.

Description

Technical Field

[0001] The utility model relates to the technical field of tensile testing machines for pressure detection of automobile parts, in particular to a tensile testing machine for pressure detection of automobile parts. Background Art

[0002] As the foundation of the automotive industry, auto parts are a necessary factor to support the sustainable and healthy development of the automotive industry. People's consumption of automobiles is increasing, and the market for auto parts is getting bigger and bigger. In recent years, auto parts manufacturers have also been developing rapidly. Auto parts are generally made of metal or plastic products. During production, pressure testing and tensile testing machines are used to perform relevant tests on them.

[0003] For example, a Chinese patent (publication number: CN212586124U) discloses a tensile testing machine for pressure testing of automobile parts, including a base, a fixed block fixedly installed on one side of the top of the base, a placement groove provided on one side of the fixed block, a T-screw threadedly connected to the top of the fixed block, a fixed plate fixedly installed on the other side of the top of the base, a slide groove provided in the middle of the top of the base, a moving mechanism installed inside the slide groove, a connecting block fixedly installed on the moving end of the moving mechanism, a limit rod installed between the fixed plate and the fixed block, conveniently controlling the moving position of the connecting block, ensuring that the connecting block moves in the same horizontal direction, ensuring the accuracy of the tensile test of automobile parts, and a fixed cover sliding on the surface of the four support columns, conveniently covering the base during the tensile test, effectively preventing the splashing of automobile parts fragments during the tensile test, and ensuring safety during the tensile test.

[0004] However, the above search patent still has some shortcomings. When in use, it can only perform a single pressure test and is not convenient for performing other tensile tests. It is slightly less practical and has certain inconveniences in use. Therefore, a tensile testing machine for pressure testing of automotive parts is proposed to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the utility model provides a tensile testing machine for pressure testing of automobile parts, which has the advantages of good practicality and solves the problem that the device disclosed in the above-mentioned search patent can only perform a single pressure test and has poor practicality.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a tensile testing machine for pressure testing of automobile parts, comprising a test bench, a test block being slidably connected to the top surface of the test bench, a cylinder being fixed to the left inner wall of the test bench, a connecting plate being fixed to the right end of the cylinder, the test block being provided with a testing mechanism;

[0007] The testing mechanism includes two fixed plates fixed on the top surface of the test bench, and a receiving groove is provided on the left and right sides of the test block. A movable plate is slidably connected in the receiving groove, and multiple guide rods are fixed between the two movable plates. A pressure sensor is fixed on the right inner wall of the left receiving groove, and a clamping assembly is provided on the right side of the test block.

[0008] Furthermore, the clamping assembly includes four support plates respectively fixed on the opposite sides of the fixed plate and the movable plate on the right side, the front side of the front support plate is rotatably connected to a threaded sleeve, the inner thread of the threaded sleeve is connected to a screw, the rear end of the screw is rotatably connected to an extrusion plate, the front sides of the fixed plate and the movable plate on the right side are both fixed with baffles, the opposite sides of the two baffles are rotatably connected to worms, a worm wheel meshing with the worm is fixed on the outer peripheral wall of the threaded sleeve, the right end of the worm on the left is fixed with a sleeve, and the left end of the worm on the right is fixed with a transmission rod slidably connected to the sleeve.

[0009] Furthermore, the top surface of the test bench is provided with a guide hole for the connecting plate to pass through and slide left and right inside it, the bottom surface of the connecting plate is fixed with a slider, and the inner bottom wall of the test bench is provided with a sliding groove for the slider to slide left and right inside it.

[0010] Furthermore, the test block is located between the two fixed plates, and the two movable plates are respectively opposite to the two fixed plates on the left and right.

[0011] Furthermore, a guide hole is provided in the test block for the guide rod to pass through horizontally and slide left and right inside the test block, and the accommodating groove is used for the movable plate to slide left and right inside the test block.

[0012] Furthermore, the baffle is an L-shaped plate, a movable hole for the screw to pass through is opened on the front side of the baffle, and the extrusion plate is arranged between the two supporting plates facing each other.

[0013] Furthermore, guide blocks are fixed on the opposite sides of the two extrusion plates, and guide grooves for sliding connection of the guide blocks are provided on the opposite sides of the movable plate and the fixed plate on the right side. An anti-slip sleeve is fixed on the outer wall of the sleeve, and the transmission rod is a square rod. A square groove for sliding connection of the transmission rod is provided on the right side of the sleeve.

[0014] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0015] 1. When using the tensile testing machine for pressure testing of automotive parts, the automotive parts to be tested are placed on the left side of the test block, and the cylinder drives the test block to move left for pressure testing, and the pressure detection parameters are read through the pressure sensor set by the test mechanism. Furthermore, the part to be tested is placed on the right side of the test block and clamped by the clamping assembly. Then, the cylinder drives the test block to move left for tensile testing, and the tensile detection parameters are read through the pressure sensor. It has better practicality and is more convenient for promotion and use.

[0016] 2. This tensile testing machine for pressure testing of automotive parts can test both pressure and tension through the pressure sensor set in the testing mechanism in conjunction with the movable plate and guide rod, which is more practical. At the same time, the clamping component is easy to operate, providing convenience for the tensile test of the test piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view schematic diagram of the utility model;

[0018] Figure 2 This is a front cross-sectional schematic diagram of the test bench of the utility model;

[0019] Figure 3 This is a top view of the clamping assembly of the present invention;

[0020] Figure 4 It is a three-dimensional schematic diagram of the sleeve of the utility model.

[0021] In the figure: 1 test bench, 2 test block, 3 cylinder, 4 connecting plate, 501 fixed plate, 502 receiving groove, 503 movable plate, 504 guide rod, 505 pressure sensor, 601 support plate, 602 threaded sleeve, 603 screw, 604 extrusion plate, 605 baffle, 606 worm, 607 worm wheel, 608 sleeve, 609 transmission rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1 to 2In this embodiment, a tensile testing machine for pressure testing of automobile parts includes a test bench 1, the top surface of the test bench 1 is slidably connected to a test block 2, a cylinder 3 is fixed to the left inner wall of the test bench 1, and a connecting plate 4 fixed to the top surface and the test block 2 is fixed to the right end of the cylinder 3. A testing mechanism is provided on the test block 2. When in use, the automobile part to be tested is placed on the left side of the test block 2, and the cylinder 3 drives the test block 2 to move left for pressure testing, and the pressure detection parameters are read by the testing mechanism. Further, the part to be tested is placed on the right side of the test block 2 and clamped by the clamping assembly. Then the cylinder 3 drives the test block 2 to move left for tensile testing, and the tensile detection parameters are read by the testing mechanism. It has better practicality and is more convenient for popularization and use.

[0024] It should be noted that the control method of this application is controlled by a controller, and the control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field, and this application is mainly used to protect mechanical devices, so this application will no longer explain the control method and circuit connection in detail.

[0025] The top surface of the test bench 1 is provided with a guide hole for the connecting plate 4 to pass through and slide left and right inside it. A slider is fixed to the bottom surface of the connecting plate 4. A sliding groove is provided on the inner bottom wall of the test bench 1 for the slider to slide left and right inside it. The slider is arranged in conjunction with the sliding groove to facilitate the stability of the horizontal movement of the connecting plate 4 and the test block 2 driven by the lifting cylinder 3.

[0026] See also Figures 1 to 3The test mechanism includes two fixed plates 501 fixed to the top surface of the test bench 1, and a receiving groove 502 is provided on the left and right sides of the test block 2. A movable plate 503 is slidably connected in the receiving groove 502. The test block 2 is located between the two fixed plates 501, and the two movable plates 503 are respectively opposite to the two fixed plates 501 on the left and right. When in use, the test piece is placed on the left side of the test block 2, and the cylinder 3 is started to drive the connecting plate 4 and the test block 2 to move to the left. Further, the movable plate 503 on the left side of the test block 2 contacts the test piece and cooperates with the left fixed plate 501 to squeeze it. A plurality of guide rods 504 are fixed between the two movable plates 503, and a guide hole is provided in the test block 2 for the guide rod 504 to pass horizontally and slide left and right inside it to accommodate The groove 502 is used for the movable plate 503 to slide left and right inside it. A pressure sensor 505 is fixed to the right inner wall of the left accommodating groove 502. During squeezing, the left movable plate 503 will move horizontally to the right inside the left accommodating groove 502 and squeeze the pressure sensor 505. The pressure sensor 505 transmits the detection data to the controller for display to complete the pressure test. A clamping assembly is provided on the right side of the test block 2. When the test piece is placed on the right side of the test block 2 and fixed between the rightmost movable plate 503 and the right fixed plate 501 through the clamping assembly, the cylinder 3 is started to drive the test block 2 to move to the left. At this time, the right movable plate 503 will drive the left movable plate 503 to move right through the guide rod 504 to squeeze the pressure sensor 505, thereby completing the tensile test.

[0027] See also Figures 3 and 4 In this embodiment, the clamping assembly includes four support plates 601 fixed on the opposite sides of the right fixed plate 501 and the movable plate 503, the front side of the front support plate 601 is rotatably connected to a threaded sleeve 602, the internal thread of the threaded sleeve 602 is connected to a screw 603, and the rear end of the screw 603 is rotatably connected to an extrusion plate 604. The front sides of the right fixed plate 501 and the movable plate 503 are both fixed with baffles 605, and the opposite sides of the two baffles 605 are both rotatably connected to a worm 606. A worm wheel 607 meshing with the worm 606 is fixed on the outer peripheral wall of the threaded sleeve 602, a sleeve 608 is fixed to the right end of the left worm 606, and a sleeve 609 is fixed to the right end of the right worm 606. The left end of 06 is fixed with a transmission rod 609 that is slidably connected to the sleeve 608. When the workpiece to be tested needs to be clamped, the two ends of the workpiece to be tested are respectively placed between the two sets of front and rear opposite support plates 601, and the sleeve 608 is rotated. The sleeve 608 drives the transmission rod 609 to rotate synchronously, thereby making the two worms 606 rotate synchronously. The worm 606 reaches the worm gear 607, and the worm gear 607 drives the two threaded sleeves 602 to rotate. Further, the threaded sleeve 602 drives the screw 603 to push the extrusion plate 604 to move backward, and cooperate with the rear support plate 601 to clamp the workpiece to be tested. During the tensile test, the transmission rod 609 slides inside the sleeve 608 but does not disengage.

[0028] The baffle 605 is an L-shaped plate. A movable hole for the screw 603 to pass through is opened on the front of the baffle 605. The extrusion plate 604 is arranged between two supporting plates 601 facing each other.

[0029] Guide blocks are fixed on the opposite sides of the two extrusion plates 604, and guide grooves for sliding connection of the guide blocks are provided on the opposite sides of the right movable plate 503 and the fixed plate 501. The guide grooves are provided in combination with the guide blocks to facilitate the stability of the forward and backward sliding clamping of the extrusion plates 604. An anti-slip sleeve is fixed on the outer peripheral wall of the sleeve 608. The anti-slip sleeve facilitates the rotation of the sleeve 608 and thus clamps the automotive parts to be tested. The transmission rod 609 is a square rod, and a square groove for sliding connection of the transmission rod 609 is provided on the right side of the sleeve 608. Such a structure facilitates the transmission of the sleeve 608 and the transmission rod 609 while enabling the transmission rod 609 to slide relative to the sleeve 608.

[0030] The working principle of the above embodiment is:

[0031] (1) When in use, the test piece is placed on the left side of the test block 2, and the cylinder 3 is started to drive the connecting plate 4 and the test block 2 to move to the left. Further, the movable plate 503 on the left side of the test block 2 contacts the test piece and cooperates with the left fixed plate 501 to squeeze it. During squeezing, the left movable plate 503 moves horizontally to the right inside the left receiving groove 502 and squeezes the pressure sensor 505. The pressure sensor 505 transmits the detection data to the controller for display to complete the pressure test. When the test piece is placed on the right side of the test block 2 and is fixed between the rightmost movable plate 503 and the right fixed plate 501 through the clamping assembly, the cylinder 3 is started to drive the test block 2 to move to the left. At this time, the right movable plate 503 drives the left movable plate 503 to move right through the guide rod 504 to squeeze the pressure sensor 505, completing the tensile test;

[0032] (2) When it is necessary to clamp the workpiece to be tested, the two ends of the workpiece to be tested are placed between two sets of front and rear opposite support plates 601, and the sleeve 608 is rotated. The sleeve 608 drives the transmission rod 609 to rotate synchronously, thereby making the two worms 606 rotate synchronously. The worm 606 reaches the worm wheel 607, and the worm wheel 607 drives the two threaded sleeves 602 to rotate. The threaded sleeve 602 further drives the screw 603 to push the extrusion plate 604 to move backward, and cooperates with the rear support plate 601 to clamp the workpiece to be tested. During the tensile test, the transmission rod 609 slides inside the sleeve 608 but does not disengage.

[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tensile testing machine for pressure testing of automobile parts, comprising a test bench (1), characterized in that: The top surface of the test bench (1) is slidably connected to a test block (2), a cylinder (3) is fixed to the left inner wall of the test bench (1), a connecting plate (4) for fixing the top surface and the test block (2) is fixed to the right end of the cylinder (3), and a test mechanism is provided on the test block (2); The testing mechanism comprises two fixed plates (501) fixed to the top surface of the test bench (1); a receiving groove (502) is provided on both the left and right sides of the test block (2); a movable plate (503) is slidably connected in the receiving groove (502); a plurality of guide rods (504) are fixed between the two movable plates (503); a pressure sensor (505) is fixed to the right inner wall of the left receiving groove (502); and a clamping assembly is provided on the right side of the test block (2).

2. A tensile testing machine for pressure testing of automotive parts according to claim 1, characterized in that: The clamping assembly comprises four support plates (601) respectively fixed on opposite sides of the fixed plate (501) and the movable plate (503) on the right side; the front side of the front support plate (601) is rotatably connected to a threaded sleeve (602); the threaded sleeve (602) is internally threadedly connected to a screw (603); the rear end of the screw (603) is rotatably connected to an extrusion plate (604); the front sides of the fixed plate (501) and the movable plate (503) on the right side are both fixed with baffles (605); the opposite sides of the two baffles (605) are both rotatably connected to a worm (606); a worm wheel (607) meshing with the worm (606) is fixed on the outer peripheral wall of the threaded sleeve (602); a sleeve (608) is fixed to the right end of the worm (606) on the left side; and a transmission rod (609) slidably connected to the sleeve (608) is fixed to the left end of the worm (606) on the right side.

3. The tensile testing machine for pressure testing of automobile parts according to claim 1, characterized in that: The top surface of the test bench (1) is provided with a guide hole for the connecting plate (4) to pass through and slide left and right inside the guide hole, the bottom surface of the connecting plate (4) is fixed with a slider, and the inner bottom wall of the test bench (1) is provided with a sliding groove for the slider to slide left and right inside the guide hole.

4. A tensile testing machine for pressure testing of automotive parts according to claim 1, characterized in that: The test block (2) is located between the two fixed plates (501), and the two movable plates (503) are respectively opposite to the two fixed plates (501) on the left and right.

5. The tensile testing machine for pressure testing of automobile parts according to claim 1, characterized in that: The test block (2) is provided with a guide hole for the guide rod (504) to pass through horizontally and slide left and right inside the test block (2), and the receiving groove (502) is used for the movable plate (503) to slide left and right inside the test block (2).

6. A tensile testing machine for pressure testing of automotive parts according to claim 2, characterized in that: The baffle (605) is an L-shaped plate. A movable hole for the screw (603) to pass through is provided on the front of the baffle (605). The extrusion plate (604) is arranged between the two supporting plates (601) facing each other.

7. A tensile testing machine for pressure testing of automotive parts according to claim 2, characterized in that: Guide blocks are fixed on opposite sides of the two extrusion plates (604), guide grooves for sliding connection of the guide blocks are provided on opposite sides of the movable plate (503) and the fixed plate (501) on the right side, an anti-slip sleeve is fixed on the outer peripheral wall of the sleeve (608), the transmission rod (609) is a square rod, and a square groove for sliding connection of the transmission rod (609) is provided on the right side of the sleeve (608).

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