Hard alloy bar strength detection equipment

Abstract

The invention relates to the technical field of detection equipment, and discloses hard alloy bar strength detection equipment which comprises a workbench, two supporting bases used for supporting a bar are arranged on the workbench, and an adjusting mechanism used for adjusting the distance between the two supporting bases is arranged on the workbench. And the workbench is provided with a detection mechanism for pressure detection of the bar. The bar bending resistance detection device has the effect that the detection device can detect the bending resistance of the bar more comprehensively.

Description

Technical Field

[0001] The present application relates to the technical field of testing equipment, and in particular to a cemented carbide rod strength testing equipment. Background Art

[0002] Cemented carbide is an alloy material made of a hard compound of refractory metals and a bonding metal through a powder metallurgy process. Cemented carbide rod strength testing equipment is a key equipment used to evaluate the physical and mechanical properties of cemented carbide rods.

[0003] In the related art, a bar strength testing device includes a workbench, which is fixedly connected to two bases, on which the bar can be placed, and the bases serve as supporting points for the bar, and the area between the two bases is an effective testing section. A force detection device capable of applying force to the bar is also provided on the workbench, and the top block of the force detection device can apply force to the center of the effective testing section.

[0004] The distance between the two bases in the testing device is fixed, that is, the length of the effective testing section is fixed. The force testing device can only obtain the bending strength of the effective testing section at a specific length. The force testing device is not comprehensive enough for the rod and has great limitations. Summary of the invention

[0005] In order to improve the incomplete detection of the bending resistance of the rod by the detection device, the present application provides a cemented carbide rod strength detection device.

[0006] The present application provides a cemented carbide bar strength testing device, which adopts the following technical solution: A cemented carbide rod strength testing device comprises a workbench, on which are arranged two support seats for supporting the rod, on which is arranged an adjustment mechanism for adjusting the distance between the two support seats, and on which is arranged a testing mechanism for applying pressure to the rod for testing.

[0007] By adopting the above technical solution, the positions of the two support seats are adjusted through the adjustment mechanism to increase or decrease the distance between the two support seats, that is, to change the length of the effective detection section of the rod, and at the same time enable the detection equipment to detect rods of different lengths; the detection mechanism tests the effective detection sections of different lengths to obtain the bending strength of the effective detection sections under different lengths, and conducts a more comprehensive and realistic test on the bending strength of the rod, which is helpful to evaluate the performance of the rod in actual use. More comprehensive testing helps to discover potential weaknesses or defects, and provide early warning of possible safety hazards, which is conducive to improving product design and production processes, and improving product quality and safety.

[0008] Optionally, the adjusting mechanism includes a guide rail arranged on the workbench and a rotating rod rotatably connected to the workbench, the guide rail is equipped with a mounting plate that can move along the length direction of the guide rail, the support seat is arranged on the mounting plate, an operating strip is arranged at both ends of the rotating rod along the width direction of the workbench, the two operating strips are respectively fixedly connected to the lower end surface of a mounting plate, an operating rod located below the operating bar is arranged on the side of the rotating rod facing the operating bar, a waist-shaped sliding hole is opened on the end surface of the operating rod facing the operating bar, a sliding rod is slidably arranged in the sliding hole, the sliding rod is fixedly connected to the lower end surface of the operating bar, and an adjustment motor for driving the rotating rod to rotate is arranged under the workbench.

[0009] By adopting the above technical solution, the motor is adjusted to drive the rotating rod and the operating rod to rotate together, and the operating rod drives the sliding rod and the operating bar to move along the length direction of the guide rail. Even if the two support seats move away from or close to each other, the length of the effective detection section of the rod is adjusted, so that the bending strength of the effective detection section under different lengths can be detected.

[0010] Optionally, the adjustment mechanism includes a guide rail arranged on the workbench and a rotating rod rotatably connected to the workbench, the guide rail is equipped with a mounting plate that can move along the length direction of the guide rail, the support seat is arranged on the mounting plate, and an operating strip is arranged at both ends of the rotating rod along the width direction of the workbench, and the two operating strips are respectively fixedly connected to the lower end surface of a mounting plate, an adjusting gear is connected to the outer sleeve of the rotating rod, and an adjusting rack is arranged on the end surface of the operating strip facing the adjusting gear, and the adjusting rack can mesh with the adjusting gear, and an adjusting motor for driving the rotating rod to rotate is arranged on the workbench.

[0011] By adopting the above technical solution, the adjusting motor drives the rotating rod and the adjusting gear to rotate together, the adjusting gear and the adjusting rack are meshed with each other, and the adjusting gear drives the adjusting rack and the operating bar to move along the length direction of the guide rail. Even if the two support seats are far away from or close to each other, the length of the effective detection section of the rod is adjusted, so that the bending strength of the effective detection section under different lengths can be detected.

[0012] Optionally, the detection mechanism includes a support plate, a support column connected to the workbench is arranged below the support plate, a hydraulic cylinder is arranged on the end surface of the support plate away from the workbench, a lifting plate is slidably arranged on the support column, a piston rod of the hydraulic cylinder is connected to the lifting plate, a pressure sensor is arranged on the end surface of the lifting plate away from the support plate, an extrusion block for abutting the rod is arranged on the side of the pressure sensor away from the lifting plate, and a slot for inserting the rod is provided on the end surface of the extrusion block away from the lifting plate.

[0013] By adopting the above technical solution, the hydraulic cylinder drives the pressure sensor and the extrusion block to move toward the rod and bend the rod, so that the pressure sensor can accurately measure the pressure applied to the rod; the rod enters the slot, so that the position of the rod is centered, making the detection of the detection equipment more accurate.

[0014] Optionally, two mounting blocks are provided on the mounting plate, and the two mounting blocks are distributed along the width direction of the workbench. The support seat is in the shape of a circular roller and is rotatably connected between the two mounting blocks. A accommodating groove for inserting rods is provided on the circumferential surface of the support seat.

[0015] By adopting the above technical solution, the rod is placed in the receiving groove of the support seat, so that the position of the rod is not easily shifted before detection, thereby improving the versatility and flexibility of the detection equipment.

[0016] Optionally, a plurality of the accommodating grooves are provided, and the plurality of the accommodating grooves are distributed in a circular array around the axis of the support seat, and the inner wall radii of the plurality of the accommodating grooves are different.

[0017] By adopting the above technical solution, the support seat can adapt to rods with different diameters, thereby improving the adaptability of the detection equipment.

[0018] Optionally, a lifting block is arranged below the pressure sensor, a lifting rod is arranged at the upper end of the lifting block, a punching hole for the lifting rod to pass through is opened on the lifting plate, a limit plate is arranged on the end surface of the lifting rod away from the lifting block, the extrusion block is slidably arranged below the lifting block, the horizontal sliding direction of the extrusion block is consistent with the width direction of the workbench, a plurality of slots are arranged, the plurality of slots are distributed along the width direction of the workbench, and the inner wall radii of the plurality of slots are different.

[0019] By adopting the above technical solution, the hydraulic cylinder drives all parts of the lifting plate to descend, and the extrusion block first contacts with the rod. As the hydraulic cylinder continues to drive the lifting plate to descend, the lifting block is limited by the rod and no longer descends until the lifting block contacts with the pressure sensor. As the hydraulic cylinder continues to drive the lifting plate to descend, the pressure sensor can accurately measure the pressure applied to the rod. The extrusion block is driven to move horizontally on the lifting block to align the slots and receiving grooves with the same inner wall radius, so that the detection of rods of different diameters is more accurate.

[0020] Optionally, a threaded hole is provided on the upper end surface of the support column, a threaded rod is threadedly connected to the threaded hole, the upper end of the threaded rod is rotatably connected to the lower end surface of the support plate, a through hole is provided on the workbench for the threaded rod to pass through, and the threaded rod extends from one side away from the support plate to the bottom of the workbench.

[0021] By adopting the above technical solution, the diameters of the rods are different, resulting in different distances at which the extrusion block descends and initially contacts the rods, that is, different lengths of extension of the piston rod of the hydraulic cylinder, which will lead to inaccurate detection data. Therefore, the threaded rod is driven to rotate and the initial positions of the support plate and the hydraulic rod are changed, so that when the hydraulic rod detects rods of different specifications, the distance at which the extrusion block descends and initially contacts the rods is the same, so that the initial conditions for the detection equipment to detect rods of different specifications are the same, resulting in more accurate detection data of the detection equipment.

[0022] Optionally, the workbench is provided with a linkage assembly that can link the threaded rod and the rotating rod, the linkage assembly includes a rotating disk sleeved on the outside of the rotating rod, a driving gear sleeved on the outside of the rotating rod, and a driven gear ring sleeved on the outside of the threaded rod, the rotating disk is rotatably connected to the lower end surface of the workbench, the driving gear is located below the rotating disk, and a linkage gear is rotatably connected below the rotating disk, the linkage gear meshes with the driving gear, a guide groove in the shape of a vertical long groove is provided on the outer circumferential surface of the threaded rod, the driven gear ring is rotatably connected to the lower end surface of the workbench, the inner wall of the driven gear ring is provided with a guide block that can be inserted into the guide groove, the guide block is slidably arranged in the guide groove, the driven gear ring is located on the motion path of the linkage gear rotating around the axis of the rotating rod, the driven gear ring can mesh with the linkage gear, the upper end surface of the rotating disk is provided with a driving rod, and an arc hole for the driving rod to pass through is provided on the workbench, and the driving rod is slidably arranged in the arc hole.

[0023] By adopting the above technical solution, the turntable is driven to move through the driving rod, so that the linkage gear on the turntable is engaged with the driven gear ring. When the motor drives the rotating rod and the driving gear to rotate, the driving gear drives the driven gear to rotate through the linkage gear, and the driven gear drives the threaded rod to rotate through the guide block, so that the threaded rod and the support plate are lowered, that is, the initial height of the hydraulic cylinder is adjusted.

[0024] Optionally, the driving rod is slidably disposed on the turntable, and the driving rod can move radially along the turntable. The workbench is provided with a first positioning hole and a second positioning hole for the driving rod to slide into. The first positioning hole is connected to the arc hole on the side facing the rotating rod, and the second positioning hole is connected to the arc hole on the side facing the rotating rod.

[0025] By adopting the above technical solution, when the driving rod is in the first positioning hole or the second positioning hole, the turntable is locked so that it is not easy to rotate; if the linkage gear and the driven gear ring are in a meshing state, the turntable is not easy to rotate, making the transmission of the linkage gear and the driven gear ring more stable.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The positions of the two support seats are adjusted by the adjustment mechanism to increase or decrease the distance between the two support seats, that is, to change the length of the effective detection section of the bar, and at the same time enable the detection equipment to detect bars of different lengths; the detection mechanism tests the effective detection sections of different lengths to obtain the bending strength of the effective detection sections under different lengths, and conducts a more comprehensive and realistic test of the bending strength of the bar, which is helpful to evaluate the performance of the bar in actual use. More comprehensive testing helps to discover potential weaknesses or defects and warn of possible safety hazards in advance, which is conducive to improving product design and production processes, and improving product quality and safety; 2. The accommodating grooves of different specifications enable bars of various specifications to be placed on the support seat, thus improving the adaptability of the testing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 is a schematic diagram of the structure of Example 1 of the present application; Figure 2 is a schematic diagram of a partial structure of the highlight adjustment mechanism in Example 1; Figure 3 It is a schematic diagram of the partial structure of the highlight detection mechanism in Example 1; Figure 4 is along Figure 3 Partial cross-sectional view along line AA; Figure 5 is a structural schematic diagram highlighting the linkage component in Example 1; Figure 6 is a schematic diagram of the partial structure of the highlight adjustment mechanism in Example 2; Figure 7 It is a schematic diagram of the partial structure of the highlight adjustment mechanism in Example 3;.

[0029] Figure numerals: 1, workbench; 11, rotating hole; 12, operating frame; 13, arc hole; 14, first positioning hole; 15, second positioning hole; 2, support seat; 21, accommodating groove; 22, rotating motor; 3, adjusting mechanism; 31, guide rail; 32, mounting plate; 321, mounting block; 33, rotating rod; 34, operating rod; 341, sliding hole; 35, operating bar; 351, sliding rod; 36, adjusting motor; 37, adjusting rack; 38, adjusting gear; 4, detecting mechanism; 41, supporting plate; 42, supporting column; 421, threaded hole; 43, threaded rod ; 431, guide groove; 44, lifting plate; 441, jack; 45, hydraulic cylinder; 46, pressure sensor; 47, extrusion block; 471, slot; 472, T-block; 473, slot; 48, lifting block; 481, lifting rod; 482, limit plate; 483, T-slot; 484, locking hole; 485, locking bolt; 486, locking groove; 487, spring; 488, locking block; 5, linkage assembly; 51, driven gear ring; 511, guide block; 52, driving gear; 53, turntable; 54, linkage gear; 55, driving rod. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-7 This application is described in further detail.

[0031] Example 1 This embodiment discloses a hard alloy bar strength testing device. Figure 1 A cemented carbide bar strength testing device comprises a workbench 1, on which two support seats 2 are arranged, and bars can be placed on the support seats 2. A support leg is fixedly connected to the bottom of the workbench 1.

[0032] Reference Figure 1 and Figure 2 The workbench 1 is provided with an adjustment mechanism 3, which is used to adjust the distance between the two support seats 2. The adjustment mechanism 3 includes a guide rail 31, a mounting plate 32, a rotating rod 33, an operating rod 34, an operating bar 35 and an adjustment motor 36.

[0033] Reference Figure 1 and Figure 2 There are two guide rails 31, and both are fixedly connected to the upper end surface of the workbench 1. The length direction of the guide rails 31 is consistent with the length direction of the workbench 1.

[0034] Reference Figure 1 and Figure 2 There are two mounting plates 32, which are slidably arranged on the two guide rails 31, so that the mounting plates 32 can move along the length direction of the guide rails 31. Two mounting blocks 321 are fixedly connected above each mounting plate 32, and the two mounting blocks 321 are distributed along the width direction of the workbench 1.

[0035] Reference Figure 1 and Figure 2 The support seat 2 is in the shape of a round roller, and the support seat 2 is rotatably connected between the two mounting blocks 321. The outer circumferential surface of the support seat 2 is provided with three receiving grooves 21, and the three receiving grooves 21 are arranged in a circular array around the axis of the support seat 2. The inner wall radii of the three receiving grooves 21 are different, and the groove depths of the three receiving grooves 21 are different. In other embodiments, the receiving grooves 21 can also be set to two, four or other numbers.

[0036] Reference Figure 1 and Figure 2 The end surface of the mounting block 321 away from the support seat 2 is fixedly connected with a rotating motor 22, and the output shaft of the rotating motor 22 is fixedly connected to the support seat 2. The rotating motor 22 adopts a servo motor. The rotating motor 22 is used to drive the support seat 2 to rotate, so as to replace different accommodating slots 21 to test rods of corresponding sizes.

[0037] Reference Figure 2 The upper end surface of the workbench 1 is provided with a rotating hole 11, and the rotating hole 11 is located between the two guide rails 31. The rotating rod 33 is rotatably connected in the rotating hole 11.

[0038] Reference Figure 2 There are two operating rods 34, and both operating rods 34 are fixedly connected to the outer circumference of the rotating rod 33. The two operating rods 34 are located above the workbench 1. The upper end surface of the operating rod 34 is provided with a sliding hole 341, which is a waist-shaped hole, and the length direction of the sliding hole 341 is consistent with the length direction of the operating rod 34.

[0039] Reference Figure 2 Two operation bars 35 are provided, one operation bar 35 is fixedly connected to the lower end surface of one mounting plate 32, and the other operation bar 35 is fixedly connected to the lower end surface of the other mounting plate 32. The rotating rod 33 is located between the two operation bars 35. The operation bar 35 is located just above the operating rod 34, and a sliding bar 351 is fixedly connected to the end surface of the operation bar 35 facing the operating rod 34. The sliding bar 351 is slidably arranged in the sliding hole 341.

[0040] Reference Figure 1 and Figure 2 The operating frame 12 is fixedly connected below the workbench 1, the adjusting motor 36 is fixedly connected to the side of the operating frame 12 away from the workbench 1, and the output shaft of the adjusting motor 36 is fixedly connected to the rotating rod 33. The adjusting motor 36 adopts a servo motor.

[0041] Reference Figure 1 and Figure 3The workbench 1 is provided with a detection mechanism 4, which is used to detect the bending resistance of the bar. The detection mechanism 4 includes a support plate 41, a support column 42, a threaded rod 43, a lifting plate 44, a hydraulic cylinder 45, a pressure sensor 46, an extrusion block 47, a lifting block 48, a lifting rod 481 and a limit plate 482.

[0042] Reference Figure 1 and Figure 3 There are four support columns 42, and the four support columns 42 are fixedly connected to the upper end surface of the workbench 1. The upper end surface of the support column 42 is provided with a threaded hole 421. The upper end surface of the workbench 1 is provided with four through holes, and each of the four through holes is aligned with a threaded hole 421.

[0043] Reference Figure 1 and Figure 3 There are four threaded rods 43, and the four threaded rods 43 are all rotatably connected to the lower end surface of the support plate 41, and the four threaded rods 43 are respectively threadedly connected in a threaded hole 421. One end of the threaded rod 43 away from the support plate 41 passes through the through hole and extends to the bottom of the workbench 1.

[0044] Reference Figure 1 and Figure 3 The hydraulic cylinder 45 is fixedly connected to the upper end surface of the support plate 41, and the piston rod of the hydraulic rod passes through the support plate 41 and is fixedly connected to the upper end surface of the lifting plate 44. The lifting plate 44 is provided with four plug holes 441, through which the support column 42 can pass, so that the lifting plate 44 can move along the axis direction of the support column 42. The pressure sensor 46 is fixedly connected to the lower side of the lifting plate 44, and the pressure sensor 46 detects and collects the pressure on the rod.

[0045] Reference Figure 1 and Figure 3 A digital display is fixedly connected to the upper end surface of the support plate 41, and the digital display is connected to the pressure sensor 46 through wires. The digital display can display the data measured by the pressure sensor 46 in real time, so that the operator can intuitively understand the pressure changes during the detection process, thereby improving the convenience and accuracy of the operation.

[0046] Reference Figure 1 and Figure 3 The lifting plate 44 is also provided with four punching holes 442. Four lifting rods 481 are provided, and each of the four lifting rods 481 is inserted into a punching hole 442. The lifting block 48 is located below the pressure sensor 46, and the four lifting rods 481 are fixedly connected to the upper end surface of the lifting block 48.

[0047] Reference Figure 1 and Figure 3The extrusion block 47 is slidably disposed below the lifting block 48. The end surface of the extrusion block 47 away from the lifting block 48 is provided with three slots 471, and the three slots 471 are distributed along the width direction of the workbench 1. The inner wall radii of the three slots 471 are different, and the groove depths of the three slots 471 are the same. Each of the three slots 471 corresponds to a receiving groove 21. In other embodiments, the slots 471 may be provided with two, four or other numbers.

[0048] Reference Figure 1 and Figure 3 The end surface of the lifting block 48 facing the extrusion block 47 is provided with a T-slot 483, and the T-slot 483 penetrates the lifting block 48 along the width direction of the workbench 1. A locking hole 484 is provided on one side of the T-slot 483 along the length direction of the workbench 1.

[0049] Reference Figure 1 and Figure 4 The end surface of the extrusion block 47 facing the lifting block 48 is fixedly connected with a T-block 472, and the T-block 472 is slidably arranged in the T-slot 483. The locking hole 484 is internally threaded with a locking bolt 485, and the locking bolt 485 can abut against the extrusion block 47.

[0050] Reference Figure 1 and Figure 4 The end surface of the T-slot 483 away from the locking hole 484 is provided with a locking slot 486. A spring 487 and a locking block 488 are arranged in the locking slot 486, one end of the spring 487 is fixedly connected to the bottom wall of the locking slot 486, and the other end of the spring 487 abuts against the locking block 488. The end surface of the locking block 488 away from the spring 487 is an arc-shaped surface.

[0051] Reference Figure 1 and Figure 4 The T-shaped block 472 is provided with three slots 473, which are distributed along the length direction of the T-shaped slot 483. The slots 473 can be inserted into the locking block 488. When the locking block 488 is inserted into the slots 473, the slots 471 on the extrusion block 47 are aligned with the receiving slots 21 on the support seat 2.

[0052] Reference Figure 3 and Figure 5 The workbench 1 is provided with a linkage assembly 5, which is used to link the threaded rod 43 with the rotating rod 33. The linkage assembly 5 includes a driven gear ring 51, a driving gear 52, a rotating disk 53, a linkage gear 54 and a driving rod 55. The driving gear 52 is sleeved outside the rotating rod 33, and the driving gear 52 is located below the workbench 1.

[0053] Reference Figure 3 and Figure 5The outer circumferential surface of each threaded rod 43 is provided with a guide groove 431, and the guide groove 431 penetrates the threaded rod 43 in the vertical downward direction. Four driven gear rings 51 are provided, and each of the four driven gear rings 51 is sleeved outside a threaded rod 43. The driven gear ring 51 is rotatably connected to the lower end surface of the workbench 1. The inner wall of the driven gear ring 51 is fixedly connected to a guide block 511, and the guide block 511 is slidably set in the guide groove 431.

[0054] Reference Figure 2 and Figure 5 The rotating disk 53 is sleeved outside the rotating rod 33, and the rotating disk 53 is located between the driving gear 52 and the workbench 1. The rotating disk 53 is rotatably connected to the lower end surface of the workbench 1. Four linkage gears 54 are provided, and the linkage gears 54 are rotatably connected to the side of the rotating disk 53 away from the workbench 1. The linkage gear 54 meshes with the driving gear 52. When the rotating disk 53 rotates, the driven gear ring 51 is located on the moving path of the linkage gear 54.

[0055] Reference Figure 2 and Figure 5 The driving rod 55 is rotatably arranged on the upper end surface of the rotating disk 53, and the driving rod 55 can move along the radial direction of the rotating disk 53. The upper end surface of the workbench 1 is provided with an arc hole 13, a first positioning hole 14 and a second positioning hole 15. The first positioning hole 14 and the second positioning hole 15 are both connected to the inner wall of the arc hole 13 away from the axis of the rotating rod 33. The driving rod 55 can slide in the arc hole 13, the first positioning hole 14 or the second positioning hole 15.

[0056] Reference Figure 2 and Figure 5 When the linkage gear 54 and the driven gear ring 51 are in meshing state, the driving rod 55 is in the first positioning hole 14, and the adjusting motor 36 drives the rotating rod 33 to rotate. The rotating rod 33 can drive the driven gear ring 51 and the threaded rod 43 to rotate through the driving gear 52 and the linkage gear 54. When the driving rod 55 is in the second positioning hole 15, the linkage gear 54 and the driven gear ring 51 are in a separated state, and the adjusting motor 36 cannot drive the threaded rod 43 to rotate.

[0057] The implementation principle of Example 1 is: when the adjustment motor 36 drives the rotating rod 33, the operating rod 34 rotates synchronously, and the operating rod 34 drives the operating bar 35 to move along the length direction of the guide rail 31 through the sliding rod 351 to adjust the distance between the two support seats 2.

[0058] Detection process: the piston rod of the hydraulic cylinder 45 drives the lifting plate 44 to descend, and the extrusion plate first contacts the rod; the piston rod of the hydraulic cylinder 45 continues to extend, causing the lifting plate 44 to further descend, causing the pressure sensor 46 to contact the lifting block 48; the piston rod of the hydraulic cylinder 45 continues to extend, applying pressure to the rod, so that the pressure sensor 46 accurately measures the pressure applied to the rod.

[0059] Example 2 Reference Figure 6 The difference between this embodiment and embodiment 1 is that the operating rod 34 and the sliding rod 351 in the adjustment mechanism 3 are replaced by an adjustment rack 37 and an adjustment gear 38.

[0060] Reference Figure 6 Two adjusting racks 37 are provided, and the adjusting racks 37 are fixedly connected to the end surface of the operating strip 35 facing the rotating rod 33 .

[0061] Reference Figure 6 The adjusting gear 38 is sleeved on the outside of the rotating rod 33 , and the adjusting gear 38 is located between the two adjusting racks 37 . The adjusting rack 37 is meshed with the adjusting gear 38 .

[0062] Reference Figure 6 An operating frame 12 is fixedly connected below the workbench 1 , an adjusting motor 36 is fixedly connected to a side of the operating frame 12 away from the workbench 1 , and an output shaft of the adjusting motor 36 is fixedly connected to the rotating rod 33 .

[0063] The implementation principle of Example 2 is: when the adjusting motor 36 drives the rotating rod 33, the adjusting gear 38 rotates synchronously. Since the adjusting gear 38 is engaged with the adjusting rack 37, the adjusting gear 38 drives the adjusting rack 37 and the operating bar 35 to move along the length direction of the guide rail 31 to adjust the distance between the two support seats 2.

[0064] Example 3 Reference Figure 7 The difference between this embodiment and the first embodiment is that the adjustment mechanism 3 further includes an adjustment rack 37, an adjustment gear 38 and an adjustment motor 36. Two adjustment racks 37 are provided, and the adjustment racks 37 are fixedly connected to the end surface of the operating bar 35 facing the rotating rod 33.

[0065] Reference Figure 7 The adjusting gear 38 is sleeved on the outside of the rotating rod 33 , and the adjusting gear 38 is located between the two adjusting gears 38 . The adjusting rack 37 is meshed with the adjusting gear 38 .

[0066] Reference Figure 7 The operating frame 12 is fixedly connected below the workbench 1, the adjusting motor 36 is fixedly connected to the side of the operating frame 12 away from the workbench 1, and the output shaft of the adjusting motor 36 is fixedly connected to the rotating rod 33. The adjusting motor 36 adopts a servo motor.

[0067] The implementation principle of Example 3 is: when the adjusting motor 36 drives the rotating rod 33, the adjusting gear 38 also rotates synchronously. Since the adjusting gear 38 is engaged with the adjusting rack 37, the adjusting gear 38 drives the adjusting rack 37 and the operating bar 35 to move along the length direction of the guide rail 31 to adjust the distance between the two support seats 2.

[0068] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0069] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present application should be included in the protection scope of the present application.

Claims

1. A cemented carbide bar strength testing device, characterized in that: The invention comprises a workbench (1), wherein the workbench (1) is provided with two support seats (2) for supporting rods, the workbench (1) is provided with an adjustment mechanism (3) for adjusting the distance between the two support seats (2), and the workbench (1) is provided with a detection mechanism (4) for detecting the pressure applied to the rods.

2. The hard alloy bar strength testing device according to claim 1, characterized in that: The adjusting mechanism (3) comprises a guide rail (31) arranged on the workbench (1) and a rotating rod (33) rotatably connected to the workbench (1); the guide rail (31) is equipped with a mounting plate (32) capable of moving along the length direction of the guide rail (31); the support seat (2) is arranged on the mounting plate (32); both ends of the rotating rod (33) along the width direction of the workbench (1) are provided with an operating strip (35); the two operating strips (35) are respectively connected to the lower end surface of a mounting plate (32). The operating bar (35) is fixedly connected, an operating bar (34) located below the operating bar (35) is arranged on one side of the rotating rod (33) facing the operating bar (35), a waist-shaped sliding hole (341) is opened on the end surface of the operating rod (34) facing the operating bar (35), a sliding rod (351) is slidably arranged in the sliding hole (341), and the sliding rod (351) is fixedly connected to the lower end surface of the operating bar (35), and an adjusting motor (36) for driving the rotating rod (33) to rotate is arranged below the workbench (1).

3. The hard alloy bar strength testing device according to claim 1, characterized in that: The adjusting mechanism (3) comprises a guide rail (31) arranged on the workbench (1) and a rotating rod (33) rotatably connected to the workbench (1); the guide rail (31) is equipped with a mounting plate (32) capable of moving along the length direction of the guide rail (31); the support seat (2) is arranged on the mounting plate (32); an operating strip (35) is arranged at both ends of the rotating rod (33) along the width direction of the workbench (1); the two operating strips (35) are respectively fixedly connected to the lower end surface of a mounting plate (32); an adjusting gear (38) is connected to the outer shell of the rotating rod (33); an adjusting rack (37) is arranged on the end surface of the operating strip (35) facing the adjusting gear (38); the adjusting rack (37) can mesh with the adjusting gear (38); and an adjusting motor (36) for driving the rotating rod (33) to rotate is arranged on the workbench (1).

4. A cemented carbide bar strength testing device according to claim 2 or 3, characterized in that: The detection mechanism (4) comprises a support plate (41), a support column (42) connected to the workbench (1) is arranged below the support plate (41), a hydraulic cylinder (45) is arranged on the end surface of the support plate (41) away from the workbench (1), a lifting plate (44) is slidably arranged on the support column (42), the piston rod of the hydraulic cylinder (45) is connected to the lifting plate (44), a pressure sensor (46) is arranged on the end surface of the lifting plate (44) away from the support plate (41), an extrusion block (47) for abutting against a rod is arranged on the side of the pressure sensor (46) away from the lifting plate (44), and a slot (471) capable of inserting a rod is provided on the end surface of the extrusion block (47) away from the lifting plate (44).

5. The cemented carbide bar strength testing device according to claim 4, characterized in that: Two mounting blocks (321) are arranged on the mounting plate (32), and the two mounting blocks (321) are distributed along the width direction of the workbench (1). The support seat (2) is in the shape of a round roller and is rotatably connected between the two mounting blocks (321). A receiving groove (21) capable of inserting a rod is provided on the circumferential surface of the support seat (2).

6. The cemented carbide bar strength testing device according to claim 5, characterized in that: A plurality of the containing grooves (21) are provided, and the plurality of the containing grooves (21) are distributed in a circular array around the axis of the support seat (2), and the inner wall radii of the plurality of the containing grooves (21) are different.

7. The cemented carbide bar strength testing device according to claim 6, characterized in that: A lifting block (48) is arranged below the pressure sensor (46), a lifting rod (481) is arranged at the upper end of the lifting block (48), a punching hole (442) is opened on the lifting plate (44) for the lifting rod (481) to pass through, a limit plate (482) is arranged on the end surface of the lifting rod (481) away from the lifting block (48), the extrusion block (47) is slidably arranged below the lifting block (48), the horizontal sliding direction of the extrusion block (47) is consistent with the width direction of the workbench (1), a plurality of slots (471) are arranged, the plurality of slots (471) are distributed along the width direction of the workbench (1), and the inner wall radii of the plurality of slots (471) are different.

8. The cemented carbide bar strength testing device according to claim 7, characterized in that: The upper end surface of the support column (42) is provided with a threaded hole (421), a threaded rod (43) is internally threadedly connected to the threaded hole (421), the upper end of the threaded rod (43) is rotatably connected to the lower end surface of the support plate (41), and the workbench (1) is provided with a through hole through which the threaded rod (43) can pass, and the threaded rod (43) extends from a side away from the support plate (41) to the bottom of the workbench (1).

9. The cemented carbide bar strength testing device according to claim 8, characterized in that: The workbench (1) is provided with a linkage assembly (5) capable of linking the threaded rod (43) with the rotating rod (33). The linkage assembly (5) comprises a rotating disk (53) sleeved on the outside of the rotating rod (33), a driving gear (52) sleeved on the outside of the rotating rod (33), and a driven gear ring (51) sleeved on the outside of the threaded rod (43). The rotating disk (53) is rotatably connected to the lower end surface of the workbench (1). The driving gear (52) is located below the rotating disk (53). A linkage gear (54) is rotatably connected below the rotating disk (53). The linkage gear (54) is meshed with the driving gear (52). A guide groove (43) in the form of a vertical long groove is provided on the outer circumferential surface of the threaded rod (43). 1), the driven gear ring (51) is rotatably connected to the lower end surface of the workbench (1), the inner wall of the driven gear ring (51) is provided with a guide block (511) which can be inserted into the guide groove (431), the guide block (511) is slidably arranged in the guide groove (431), the driven gear ring (51) is located on the movement path of the linkage gear (54) rotating around the axis of the rotating rod (33), the driven gear ring (51) can mesh with the linkage gear (54), the upper end surface of the rotating disk (53) is provided with a driving rod (55), the workbench (1) is provided with an arc hole (13) for the driving rod (55) to pass through, and the driving rod (55) is slidably arranged in the arc hole (13).

10. The cemented carbide bar strength testing device according to claim 9, characterized in that: The driving rod (55) is slidably arranged on the rotating disk (53), and the driving rod (55) can move radially along the rotating disk (53). The workbench (1) is provided with a first positioning hole (14) and a second positioning hole (15) into which the driving rod (55) can slide. The first positioning hole (14) is connected to the arc hole (13) on the side facing the rotating rod (33), and the second positioning hole (15) is connected to the arc hole (13) on the side facing the rotating rod (33).

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