Steel ball impactor mechanism for needling sensitivity testing machine

Abstract

The invention provides a steel ball impactor mechanism for a needling sensitivity testing machine, which comprises an impact test chamber, a steel ball storage bin, a steel ball automatic separation assembly, a steel ball receiving assembly, a test assembly clamping assembly and a steel ball falling assembly, and is characterized in that the steel ball automatic separation assembly is arranged on one side of the impact test chamber and is used for separating steel balls; the steel ball storage bin is arranged on the periphery of the impact test chamber, connected with the automatic steel ball separation assembly and used for conveying steel balls to the automatic steel ball separation assembly, and the steel ball receiving assembly is located between the automatic steel ball separation assembly and the impact test chamber and used for transferring the separated steel balls to the steel ball falling assembly; the test assembly clamping assembly is arranged in the impact test chamber, located on one side of the lower end of the steel ball falling assembly, opposite to the steel ball receiving assembly in a spaced mode and used for clamping the test assembly, and the steel ball falling assembly is arranged in the impact test chamber and used for lifting a transferred steel ball and then lowering the impact test assembly. According to the invention, automatic conveying, separation, receiving and falling of the steel balls are realized, and the test efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of acupuncture sensitivity test equipment, and in particular relates to a steel ball impact sub-mechanism used for acupuncture sensitivity test machine. Background Art

[0002] Needle sensitivity refers to the ease with which the explosive explodes when pierced by a needle. It is evaluated by using a steel ball (or hammer) of a certain mass to fall freely from different heights to hit the firing pin. The firing pin pokes the primer and the ignition of the primer is observed.

[0003] The needle sensitivity test is one of the important means to evaluate the safety and reliability of pyrotechnics. The traditional test method is to use manual operation to assemble the test components and then strike the firing pin. This not only has low work efficiency but also poor test accuracy. Summary of the invention

[0004] In order to solve the above technical problems, the purpose of the present invention is to provide a steel ball impact sub-mechanism for a needle puncture sensitivity testing machine, which completes an automatic impact test by clamping the experimental component, automatically grabbing the steel ball, lifting it up, and then releasing it to make the steel ball hit the experimental component, so as to solve the problem of low efficiency of traditional manual operation.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A steel ball impact sub-mechanism for a needle puncture sensitivity tester, the steel ball impact sub-mechanism comprising an impact test chamber, a steel ball storage bin, a steel ball automatic separation component, a steel ball receiving component, a test component clamping component and a steel ball falling component, the impact test chamber is opposite to the test component transport sub-mechanism, the steel ball automatic separation component is arranged at the periphery of the impact test chamber for separating steel balls, the steel ball storage bin is arranged at the periphery of the impact test chamber and connected to the steel ball automatic separation component for conveying the steel balls stored therein to the steel ball automatic separation component, the steel ball receiving component is located between the steel ball automatic separation component and the impact test chamber for transporting the separated steel balls to the steel ball falling component, the test component clamping component is arranged in the impact test chamber and is located at one side of the lower end of the steel ball falling component and is spaced opposite to the steel ball receiving component, for clamping the test component, and the steel ball falling component is arranged in the impact test chamber for lifting the transported steel balls and then lowering them to impact the test component.

[0007] Furthermore, the steel ball storage bin includes a storage box, a steel ball slide, a roller and a steel ball moving plate group, the steel ball slide is connected to the upper end of the storage box, the steel ball moving plate group is arranged inside the storage box to divide the storage box into an upper end cavity for storing steel balls, the steel ball moving plate group is used to push the steel balls into the steel ball slide, one end of the steel ball slide is connected to the roller, and the other end of the roller is connected to the steel ball automatic separation component.

[0008] Furthermore, the steel ball moving plate group includes a fixed plate group, a movable plate group and a third uniaxial telescopic module. The fixed plate group is composed of a plurality of fixed plates spaced apart from each other in a stepped shape, and the movable plate group is composed of a plurality of movable plates spaced apart from each other. The movable plates are arranged between adjacent fixed plates, and the fixed plates and the movable plates are fitted together; the third uniaxial telescopic module is arranged in a storage box at the lower ends of the fixed plate group and the movable plate group, and one end of each movable plate of the movable plate group is connected to the telescopic end of the third uniaxial telescopic module. The third uniaxial telescopic module drives the movable plate to telescopically move along the fixed plate to push the steel balls in the storage box into the steel ball slide.

[0009] Furthermore, the steel ball automatic separation component includes a vertical support plate, a separation rotating module, a separation disk and a separation ring. The separation rotating module is arranged on one side of the upper end of the vertical support plate, and the separation disk is arranged on the other side of the upper end of the vertical support plate. The rotating axis of the separation rotating module passes through the vertical support plate and is connected to the separation disk. The separation ring is slidably nested in the outer periphery of the separation disk. Ball passing holes are arranged at both radial ends of the separation ring. The ball passing hole at one end is connected to the raceway, and a ball storage blind hole that penetrates the ball passing hole is radially arranged on the outer periphery of the separation disk.

[0010] Furthermore, the steel ball receiving assembly includes a receiving rotating module, a second uniaxial telescopic module and a steel ball receiving transfer plate, the receiving rotating module is arranged on the telescopic end of the second uniaxial telescopic module, the second uniaxial telescopic module is used to adjust the height of the steel ball receiving transfer plate, one end of the steel ball receiving transfer plate is arranged on the receiving rotating module, and the other end of the steel ball receiving transfer plate is provided with a ball groove for placing steel balls, and the receiving rotating module is used to drive the steel ball receiving transfer plate to rotate horizontally to transfer the steel balls from one side of the steel ball receiving assembly to the side of the steel ball falling assembly.

[0011] Furthermore, the steel ball falling assembly includes a steel ball grabbing and releasing subgroup and a steel ball lifting subgroup. The steel ball lifting subgroup is arranged on the inner wall of the impact test chamber. The steel ball grabbing and releasing subgroup is slidably arranged on the steel ball lifting subgroup. The steel ball grabbing and releasing subgroup is used to grab the steel ball delivered by the steel ball receiving assembly at the lower part of the impact test chamber and release the steel ball to the firing pin on the impact test assembly at the upper part of the impact test chamber. The steel ball lifting subgroup is used to drive the steel ball grabbing and releasing subgroup to rise and fall in the impact test chamber.

[0012] Furthermore, the steel ball lifting subgroup includes a linear guide, a lead screw, a slider connecting plate and a first lifting drive motor. A pair of the linear guides are arranged at intervals on an inner wall of one side of the impact test chamber. Both ends of the slider connecting plate are connected to the sliders on the pair of linear guides. The first lifting drive motor is arranged at the upper end of the top outer periphery of the impact test chamber. The output end of the first lifting drive motor is connected to one end of the lead screw, and the other end of the lead screw is slidingly connected to the lower inner wall of the impact test chamber. The lead screw passes through the slider connecting plate and is threadedly connected to it. The steel ball catch and release subgroup is arranged on one side of the slider connecting plate. The first lifting drive motor drives the lead screw to rotate and drive the slider connecting plate to move up and down along a pair of linear guides to drive the steel ball catch and release subgroup to move up and down.

[0013] Furthermore, a support plate is provided on the lower inner wall of the impact test chamber, a bearing is nested on the support plate, the other end of the lead screw is embedded in the bearing, a threaded sleeve is provided at the lower end of the slider connecting plate, and the lead screw is threadedly connected to the threaded sleeve.

[0014] Furthermore, the steel ball grabbing and releasing subgroup includes a grabbing and releasing fixed plate, a grabbing and releasing rotating module and a steel ball lifting and transferring plate. One side of the grabbing and releasing fixed plate is connected to the slider connecting plate, and a grabbing and releasing rotating module is arranged on the other side of the grabbing and releasing fixed plate. The lower end of the grabbing and releasing rotating module is connected to one end of the steel ball lifting and transferring plate, and a steel ball grabbing and releasing part is arranged on the other end of the steel ball lifting and transferring plate. The grabbing and releasing rotating module drives the steel ball lifting and transferring plate to rotate to one side of the steel ball receiving component, and grabs and transports the steel balls through the steel ball grabbing and releasing part and docks with one end of the steel ball receiving and transferring plate, and transfers the steel balls to the top of the test component.

[0015] Furthermore, the test component clamping assembly includes a pair of clamping telescopic modules, the pair of clamping telescopic modules are arranged on the inner wall of the impact test chamber at relative intervals, and the pair of test component clamping fingers are arranged on the relative telescopic ends of the pair of clamping telescopic modules, and the pair of test component clamping fingers are used to clamp and fix the outer periphery of the test component.

[0016] The present invention adopts the above technical solution, which has the following advantages and effects:

[0017] The present invention provides a steel ball impact sub-mechanism for a needle puncture sensitivity tester. The steel ball storage bin, the steel ball automatic separation component, the steel ball receiving component and the steel ball falling component are arranged. The steel ball storage bin automatically conveys the steel balls to the steel ball automatic separation component. The separation disk of the steel ball automatic separation component separates the steel balls by vertical rotation, and the steel ball receiving component grabs the steel balls by horizontal rotation and conveys them to the steel ball falling component. The steel ball falling component grabs the conveyed steel balls and releases them to impact the test component, thus realizing the automatic conveying, separation, receiving and falling process of the steel balls, improving the test efficiency, reducing manual operation, and having a high degree of automation. In addition, the sub-mechanism can be modularly designed according to actual needs, so as to facilitate subsequent function expansion and technical upgrade. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an isometric structural schematic diagram of the steel ball impact sub-mechanism of the present invention.

[0019] Figure 2 It is a schematic diagram of the internal structure of the steel ball impact sub-mechanism of the present invention.

[0020] Figure 3 It is a schematic diagram of the internal structure of the steel ball storage bin of the present invention.

[0021] Figure 4 It is a schematic diagram of the structure of the steel ball moving plate group of the present invention.

[0022] Figure 5 It is a schematic diagram of the isometric assembly structure of the steel ball automatic separation component and the steel ball receiving component of the present invention.

[0023] Figure 6 for Figure 5 Schematic diagram of the explosion structure.

[0024] Figure 7 It is a schematic diagram of the isometric assembly structure of the steel ball falling assembly, the test assembly clamping assembly and the like of the present invention.

[0025] Figure 8 It is a schematic diagram of the cross-sectional assembly structure of the steel ball falling component and the test component clamping component of the present invention.

[0026] Fig. 9 It is an isometric structural schematic diagram of the steel ball falling assembly of the present invention.

[0027] Fig.10 It is a schematic diagram of the isometric structure of the test assembly clamping assembly of the present invention.

[0028] The accompanying drawings are marked as follows: 1-impact test chamber, 2-steel ball storage bin, 21-storage box, 22-steel ball slideway, 23-roller, 24-steel ball moving plate group, 241-fixed plate group, 242-moving plate group, 243-first single-axis telescopic module, 244-moving plate connecting plate, 3-steel ball automatic separation assembly, 31-vertical support plate, 32-separation rotation module, 33-separation disk, 331-ball storage blind hole, 34-separation ring, 341-ball through hole, 4-steel ball receiving assembly, 41-steel ball receiving transfer plate, 42-receiving rotation module, 43-second single-axis telescopic module, 5-steel ball falling assembly, 51-steel ball grab and release subgroup, 511-grab and release fixed plate, 512-grab and release rotating module, 513-steel ball lifting and transfer plate, 5131-magnet sleeve, 52-steel ball lifting subgroup, 521-linear guide rail, 522-screw, 523-slider connecting plate, 524-first lifting drive motor, 6-test assembly clamping assembly, 61-clamping telescopic module, 62-test assembly clamping finger, 7-steel ball recovery assembly, 8-impact support, 9-test assembly, 10-steel ball.

[0029] DETAILED DESCRIPTION OF THE EMBODIMENTS The embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings so as to more clearly understand the purpose, features and advantages of the present invention. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0030] The needle puncture sensitivity test machine is used to assemble the test components and then conduct the impact test. After the impact test is completed, the test components are disassembled one by one for cleaning, and then the cycle is repeated after cleaning. The test components include multiple accessories, namely, the base, lead plate, plastic seat, primer, upper cover and firing pin. The lead plate is placed on the base of the test platform, the plastic seat is placed on the lead plate, the primer is placed on the plastic seat, the upper cover is buckled on the base to cover the primer, the firing pin is inserted into the upper cover to contact the primer, and the firing pin is struck to make the firing pin poke the primer to complete the impact test.

[0031] The test component in the steel ball impact sub-mechanism is grabbed by the test component transfer sub-mechanism and then transported to the steel ball impact sub-mechanism for testing. The test component transfer sub-mechanism and the steel ball impact sub-mechanism are arranged relative to each other, and the test component can be reciprocated between the product carrier and the steel ball impact sub-mechanism. The test component transfer sub-mechanism includes a two-dimensional moving component and a grabbing component. The grabbing component is arranged at one end of the two-dimensional moving component, and the two-dimensional moving component is used to drive the grabbing component to move and transfer the test component to the steel ball impact sub-mechanism.

[0032] like Figure 1 , Figure 2The steel ball impact sub-mechanism 122 includes an impact test chamber 1, a steel ball storage bin 2, a steel ball automatic separation assembly 3, a steel ball receiving assembly 4, a steel ball falling assembly 5 and a test assembly clamping assembly 6. The impact test chamber 1 is opposite to the test assembly transport sub-mechanism. The steel ball automatic separation assembly 3 is arranged at the periphery of the impact test chamber 1 for separating steel balls. The steel ball storage bin 2 is arranged at the periphery of the impact test chamber 1 and connected to the steel ball automatic separation assembly 3 for conveying the steel balls stored therein to the steel ball automatic separation assembly 3. The steel ball receiving assembly 4 is located between the steel ball automatic separation assembly 3 and the impact test chamber 1 for transporting the separated steel balls to the steel ball falling assembly 5. The test assembly clamping assembly 6 is arranged in the impact test chamber 1 and is located at the lower end of the steel ball falling assembly 5 and is spaced opposite to the steel ball receiving assembly 4. The steel ball falling assembly 5 is arranged in the impact test chamber 1 for lifting the transported steel balls and then lowering them to impact the test assembly in the impact test chamber 1.

[0033] Specifically, the impact support 8 can be arranged on the lower support platen of the needle puncture sensitivity tester, the impact test chamber 1, the steel ball automatic separation component 3, and the steel ball receiving component 4 are arranged on the impact support 8, and the steel ball storage bin 2 is arranged on the lower support platen and located outside the impact support 8. The steel ball storage bin 2 is used to store steel balls, and the steel balls are placed in the steel ball storage bin 2 manually. One side of the impact test chamber 1 is opposite to the test component transport sub-mechanism, and the steel ball receiving component 4 and the steel ball automatic separation component 3 are arranged in sequence on the other side of the impact test chamber 1. The test component transport sub-mechanism transports the test component to the impact test chamber 2 and clamps it through the test component clamping component 6 for impact testing. A steel ball recovery component 7 is arranged at the lower end of the impact test chamber 1, and the steel ball recovery component 7 is used to recover the steel balls after the impact test.

[0034] Furthermore, the impact test chamber 1 includes a shell, which is a rectangular parallelepiped structure. An exhaust duct is arranged at the upper end of the shell, and the exhaust duct runs through the inside and outside of the shell. The exhaust duct is used to discharge the polluted gas after the impact test. The bottom surface of the lower end of the shell is a conical surface, and a through hole for leaking the steel ball is arranged in the center of the conical surface. Pneumatic lifting doors are arranged on the opposite sides of the shell, and a double door is arranged on one side of the shell, which is convenient for repairing and maintaining the steel ball falling assembly 5 in the impact test chamber 1. Cylinders are arranged on the outer periphery of the opposite sides of the shell, and guide grooves are arranged at both ends of the inner periphery of the opposite sides. The opposite sides of the pneumatic lifting door are embedded in the guide grooves. One end of the cylinder is fixed to the upper end of the shell, and the other end of the cylinder is connected to a telescopic lifting door, and the cylinder drives the telescopic lifting door to move up and down. The opposite pair of telescopic lifting doors are used for entering and exiting the test assembly and the steel ball respectively. The telescopic lifting door plate uses a steel plate with a thickness of 12mm, and the protection capacity is ≥1gTNT equivalent.

[0035] As shown in Figure 3, Figure 4Further, the steel ball storage bin 2 comprises a storage box 21, a steel ball slideway 22, a roller track 23 and a steel ball moving plate group 24, the steel ball slideway 22 is connected to the upper end of the storage box 21, one end of the steel ball slideway 22 is connected to the roller track 23, and the other end of the roller track 23 is connected to the steel ball automatic separation component 3.

[0036] Specifically, the steel ball moving plate group 24 is arranged in a stepped manner on one side of the storage box 21. The steel ball moving plate group 24 includes a fixed plate group 241, a movable plate group 242 and a second uniaxial telescopic module 243. The fixed plate group 241 is composed of a plurality of fixed plates arranged in a stepped manner at intervals, and the movable plate group 242 is composed of a plurality of movable plates arranged at intervals. A movable plate is arranged between adjacent fixed plates, and the fixed plates and the movable plates are fitted. The second uniaxial telescopic module 243 is arranged in the storage box 21 at the lower end of the fixed plate group 241 and the movable plate group 242, and each movable plate of the movable plate group 242 is connected to the telescopic end of the second uniaxial telescopic module 243 through a movable plate connecting plate 244. The second uniaxial telescopic module 243 drives the movable plate to move along the fixed plate to push the steel balls in the storage box 21 into the steel ball slide 22. A photoelectric sensor is also arranged at one end of the steel ball slide 22 to detect that the steel balls enter the raceway 23. The bottom of the storage box 21 is fixed on the lower support plate. The second single-axis telescopic module 243 is preferably an electric telescopic rod or an electric telescopic rodless cylinder.

[0037] As a preferred embodiment, the steel ball storage bin 2 includes a storage funnel, a dust cover and a raceway 23. One end of the storage funnel is connected to the outer peripheral surface of the shell of the impact test chamber 1, the dust cover is arranged at the upper end of the storage funnel, and the raceway 23 is arranged at the lower end of the storage funnel. One end of the raceway 23 passes through the bottom of the storage funnel, and the other end of the raceway is connected to the steel ball automatic separation component 3. The steel balls enter the steel ball automatic separation component 3 in sequence from the lower end of the storage funnel along the raceway 23.

[0038] In order to prevent the steel ball from getting stuck in the raceway 23, the raceway 23 is provided with slots along the axial direction, so that the cross section of the raceway 23 is a C-shaped structure, and the slots facilitate manual handling when the steel ball gets stuck in the raceway 23. The middle part of the raceway 23 is a straight section, and the two ends have arc-shaped bending sections, and a pair of arc-shaped bending sections are bent relative to each other. The pair of arc-shaped bending sections are connected to the storage funnel and the steel ball automatic separation component 3 respectively.

[0039] like Figure 5 , 6As shown. Further, the steel ball automatic separation component 3 includes a vertical support plate 31, a separation rotation module 32, a separation disc 33 and a separation ring 34. The vertical support plate 31 is arranged on the upper support plate, the separation rotation module 32 is arranged on one side of the upper end of the vertical support plate 31, and the separation disc 33 is arranged on the other side of the upper end of the vertical support plate 31. The rotation axis of the separation rotation module 32 passes through the vertical support plate 31 and is connected to the separation disc 33. The separation ring 34 is arranged on the other side of the upper end of the vertical support plate 31 and is slidably nested in the outer periphery of the separation disc 33. The radial ends of the separation ring 34 are provided with ball passing holes 341. The ball passing hole 341 at one end is connected to the arc-shaped bending section at the lower end of the raceway 23 through a ball passing tube. The outer periphery of the separation disc 33 is radially provided with a ball storage blind hole 331 that passes through the ball passing hole 341.

[0040] In the initial position, the ball storage blind hole 331 is located at the upper end of the separation disk 33 and is connected with the ball passing hole 341 at the upper end of the separation ring 34. The steel ball 10 transported from the steel ball storage bin 2 enters the ball storage blind hole 331 from the ball passing hole 341 at the upper end, and the separation rotating module 32 drives the separation disk 33 to rotate vertically 180°, and the ball storage blind hole 331 rotates downward and is connected with the ball passing hole 341 at the lower end, and the steel ball 10 is transported from the ball passing hole 341 at the lower end to the steel ball receiving assembly 4.

[0041] Further, the steel ball receiving assembly 4 includes a receiving rotating module 42, a second uniaxial telescopic module 43 and a steel ball receiving transfer plate 41. The receiving rotating module 42 is arranged on the telescopic end of the second uniaxial telescopic module 43, and a fixing seat is arranged at the lower end of the vertical lifting module. The fixing seat is arranged on the lower supporting table, the second uniaxial telescopic module 43 is used to adjust the height of the steel ball receiving transfer plate 41, one end of the steel ball receiving transfer plate 41 is arranged on the receiving rotating module 42, and the other end of the steel ball receiving transfer plate 41 is provided with a ball groove, and the ball groove is used to place the steel ball 10. The receiving rotating module 42 drives the steel ball receiving transfer plate 41 to rotate horizontally 180° to realize the transfer of the steel ball 10 from one side of the steel ball receiving assembly 4 to the side of the steel ball falling assembly 5.

[0042] like Figure 7 , Figure 8 , Fig. 9 Further, the steel ball falling assembly 5 includes a steel ball grabbing and releasing subassembly 51 and a steel ball lifting and lowering subassembly 52. ​​The steel ball lifting and lowering subassembly 52 is arranged on the inner wall of the impact test chamber 1. The steel ball grabbing and releasing subassembly 51 is slidably arranged on the steel ball lifting and lowering subassembly 52. ​​The steel ball grabbing and releasing subassembly 51 is used to grab the steel ball delivered by the steel ball receiving assembly 4 at the lower part of the impact test chamber 1 and release the steel ball to the firing pin on the impact test assembly 9 at the upper part of the impact test chamber. The steel ball lifting and lowering subassembly 52 is used to drive the steel ball grabbing and releasing subassembly 51 to rise and fall in the impact test chamber 1.

[0043] Furthermore, the steel ball lifting subgroup 52 includes a linear guide 521, a lead screw 522, a slider connecting plate 523 and a first lifting drive motor 524. A pair of linear guides 521 are arranged at intervals on the inner wall of one side of the impact test chamber 1. The two ends of the slider connecting plate 523 are connected to the sliders on the pair of linear guides 521. The first lifting drive motor 524 is arranged at the upper end of the top periphery of the impact test chamber 1. The output end of the first lifting drive motor 524 is connected to one end of the lead screw 522, and the other end of the lead screw 522 is slidingly connected to the lower inner wall of the impact test chamber 1. The lead screw 522 passes through the slider connecting plate 523 and is threadedly connected thereto. The steel ball grabbing and releasing subgroup 51 is arranged on one side of the slider connecting plate 523. The first lifting drive motor 524 drives the lead screw 522 to rotate and drive the slider connecting plate 523 to move up and down along the pair of linear guides 521, so as to drive the steel ball grabbing and releasing subgroup 51 to move vertically up and down.

[0044] A support plate is also provided on the lower inner wall of the impact test chamber 1, and a bearing is nested on the support plate, and the other end of the lead screw 522 is embedded in the bearing. A threaded sleeve is provided at the lower end of the slider connecting plate 523, and the lead screw and the threaded sleeve are threadedly sleeved.

[0045] The lead screw 522 uses a trapezoidal lead screw with a self-locking function, and the first lifting drive motor 524 uses a 42-type explosion-proof stepping motor.

[0046] Further, the steel ball catch and release subgroup 51 includes a catch and release fixed plate 511, a catch and release rotating module 512 and a steel ball lifting and transporting plate 513. One side of the catch and release fixed plate 511 is connected to the slider connecting plate 523. The other side of the catch and release fixed plate 511 is provided with a catch and release rotating module 512. The lower end of the catch and release rotating module 512 is connected to one end of the steel ball lifting and transporting plate 513. The other end of the steel ball lifting and transporting plate 513 is provided with a steel ball catch and release member. The catch and release rotating module 512 drives the steel ball lifting and transporting plate 513 to rotate to one side of the steel ball receiving assembly 4, and the steel ball 10 is caught and transported through the steel ball catch and release member and one end of the steel ball receiving and transporting plate 41. The catch and release rotating module 512 rotates horizontally 180° to transport the steel ball to the top of the test assembly 9. After the steel ball is driven to rise to a certain height by the steel ball lifting subgroup 52, the steel ball catch and release subgroup 51 lowers the steel ball 10 and hits the firing pin on the test assembly 9, so that the firing pin hits the primer.

[0047] The separation rotating module 32, the receiving rotating module 42 and the grabbing and placing rotating module 512 are preferably electric rotating cylinders or electric rotating slides.

[0048] The steel ball catch and release member is preferably an electromagnet. At this time, a magnet sleeve 5131 is provided on the lower surface of the end of the steel ball lifting transfer plate 513, and the electromagnet is arranged in the upper end of the magnet sleeve 5131, and the lower end of the magnet sleeve is used to accommodate the steel ball, and the steel ball is adsorbed by the electromagnet.

[0049] As a preferred embodiment, the steel ball grabbing and releasing device can also include a clamping cylinder and clamping fingers. The clamping cylinder is arranged at one end of the steel ball lifting and transfer plate, and the clamping fingers are arranged on the clamping cylinder. The steel ball is grasped by a pair of clamping fingers. In order to facilitate the grasping of the steel ball, the opposite inner sides of the pair of clamping fingers are provided with inner concave surfaces matching the outer circumference of the steel ball.

[0050] like Fig.10 As shown. Further, the test assembly clamping assembly 6 includes a pair of clamping telescopic modules 61, which are arranged on the inner wall of the impact test chamber 1 at a relative interval, and the pair of clamping telescopic modules 61 are provided with test assembly clamping fingers 62 on the opposite telescopic ends, and the pair of test assembly clamping fingers 62 are used to clamp and fix the periphery of the test assembly. The test assembly clamping fingers are preferably clamping plates, and the opposite surfaces of the pair of clamping plates are arc-shaped surfaces matching the periphery of the test assembly.

[0051] The fixed ends of a pair of clamping and telescopic modules 61 are respectively fixed on the inner walls on both sides opposite to each other of the impact test chamber 1. The clamping and telescopic modules 61 are preferably electric telescopic rods or electric telescopic rodless cylinders.

[0052] After the impact test is completed, the test component 9 is transported to the product carrier through the test component transfer sub-mechanism, and the steel ball 10 enters the steel ball recovery component 7.

[0053] Again Figure 2 Further, the steel ball recovery assembly 7 includes a recovery pipe and a recovery box. The recovery pipe is arranged at the bottom of the lower end of the impact test chamber 1 and the upper end thereof passes through the bottom of the impact test chamber 1. The recovery box is arranged at the lower end of the recovery pipe and the recovery box is arranged on a bracket located on the ground.

[0054] As a preferred embodiment, in order to facilitate the recovery of the steel ball 10, the bottom surface of the impact test chamber 1 is a V-shaped structure, a rectangular hole is provided at the bottom of the V-shaped structure, a trapezoidal groove is provided at the upper end of the recovery pipe, the large opening end of the trapezoidal groove is through-connected with the rectangular hole, and the lower opening end of the trapezoidal groove is through-connected with the recovery pipe.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A steel ball impact sub-mechanism for a needle puncture sensitivity tester, characterized in that: It includes an impact test chamber, a steel ball storage bin, an automatic steel ball separation component, a steel ball receiving component, a test component clamping component and a steel ball falling component. The automatic steel ball separation component is arranged at the periphery of the impact test chamber for separating steel balls. The steel ball storage bin is arranged at the periphery of the impact test chamber and is connected to the automatic steel ball separation component, and is used to transport the steel balls stored therein to the automatic steel ball separation component. The steel ball receiving component is located between the automatic steel ball separation component and the impact test chamber and is used to transfer the separated steel balls to the steel ball falling component. The test component clamping component is arranged in the impact test chamber and is located at one side of the lower end of the steel ball falling component and is spaced opposite to the steel ball receiving component, and is used to clamp the test component. The steel ball falling component is arranged in the impact test chamber and is used to lift the transferred steel balls and then lower them to impact the test component.

2. The steel ball impact sub-mechanism for a needle puncture sensitivity tester according to claim 1, characterized in that: The steel ball storage bin includes a storage box, a steel ball slide, a roller and a steel ball moving plate group. The steel ball slide is connected to the upper end of the storage box. The steel ball moving plate group is arranged inside the storage box to divide the storage box into an upper end cavity for storing steel balls. The steel ball moving plate group is used to push steel balls into the steel ball slide. One end of the steel ball slide is connected to the roller, and the other end of the roller is connected to the steel ball automatic separation component.

3. The steel ball impact sub-mechanism for a needle puncture sensitivity tester according to claim 2, characterized in that: The steel ball moving plate group includes a fixed plate group, a movable plate group and a third uniaxial telescopic module. The fixed plate group is composed of a plurality of fixed plates spaced apart from each other in a stepped shape. The movable plate group is composed of a plurality of movable plates spaced apart from each other. The movable plates are arranged between adjacent fixed plates, and the fixed plates and the movable plates are fitted together. The third uniaxial telescopic module is arranged in a storage box at the lower ends of the fixed plate group and the movable plate group. One end of each movable plate of the movable plate group is connected to the telescopic end of the third uniaxial telescopic module. The third uniaxial telescopic module drives the movable plate to telescopically move along the fixed plate to push the steel balls in the storage box into the steel ball slideway.

4. A steel ball impact sub-mechanism for a needle puncture sensitivity tester according to claim 2 or 3, characterized in that: The steel ball automatic separation component includes a vertical support plate, a separation rotation module, a separation disk and a separation ring. The separation rotation module is arranged on one side of the upper end of the vertical support plate, and the separation disk is arranged on the other side of the upper end of the vertical support plate. The rotating axis of the separation rotation module passes through the vertical support plate and is connected to the separation disk. The separation ring is slidably nested in the outer periphery of the separation disk. Ball passing holes are arranged at both radial ends of the separation ring. The ball passing hole at one end is connected to the raceway. The outer periphery of the separation disk is radially provided with ball storage blind holes that penetrate the ball passing holes.

5. The steel ball impact sub-mechanism for a needle puncture sensitivity tester according to claim 4, characterized in that: The steel ball receiving assembly includes a receiving rotating module, a second uniaxial telescopic module and a steel ball receiving transfer plate. The receiving rotating module is arranged on the telescopic end of the second uniaxial telescopic module. The second uniaxial telescopic module is used to adjust the height of the steel ball receiving transfer plate. One end of the steel ball receiving transfer plate is arranged on the receiving rotating module. The other end of the steel ball receiving transfer plate is provided with a ball groove for placing steel balls. The receiving rotating module is used to drive the steel ball receiving transfer plate to rotate horizontally to transfer the steel balls from one side of the steel ball receiving assembly to the side of the steel ball falling assembly.

6. The steel ball impact sub-mechanism for a needle puncture sensitivity tester according to claim 5, characterized in that: The steel ball falling assembly includes a steel ball grabbing and releasing subgroup and a steel ball lifting subgroup. The steel ball lifting subgroup is arranged on the inner wall of the impact test chamber. The steel ball grabbing and releasing subgroup is slidably arranged on the steel ball lifting subgroup. The steel ball grabbing and releasing subgroup is used to grab the steel ball delivered by the steel ball receiving assembly at the lower part of the impact test chamber and release the steel ball to the firing pin on the impact test assembly at the upper part of the impact test chamber. The steel ball lifting subgroup is used to drive the steel ball grabbing and releasing subgroup to rise and fall in the impact test chamber.

7. The steel ball impact sub-mechanism for a needle puncture sensitivity tester according to claim 6, characterized in that: The steel ball lifting subgroup includes a linear guide, a lead screw, a slider connecting plate and a first lifting drive motor. A pair of the linear guides are arranged at intervals on an inner wall of one side of the impact test chamber. Both ends of the slider connecting plate are connected to the sliders on the pair of linear guides. The first lifting drive motor is arranged at the upper end of the top outer periphery of the impact test chamber. The output end of the first lifting drive motor is connected to one end of the lead screw, and the other end of the lead screw is slidingly connected to the lower inner wall of the impact test chamber. The lead screw passes through the slider connecting plate and is threadedly connected to it. The steel ball catch and release subgroup is arranged on one side of the slider connecting plate. The first lifting drive motor drives the lead screw to rotate and drive the slider connecting plate to move up and down along a pair of linear guides to drive the steel ball catch and release subgroup to move up and down.

8. The steel ball impact sub-mechanism for a needle puncture sensitivity tester according to claim 7, characterized in that: A support plate is also provided on the lower inner wall of the impact test chamber, a bearing is nested on the support plate, the other end of the lead screw is embedded in the bearing, a threaded sleeve is provided on the lower end of the slider connecting plate, and the lead screw is threadably connected with the threaded sleeve.

9. The steel ball impact sub-mechanism for a needle puncture sensitivity tester according to claim 8, characterized in that: The steel ball grabbing and releasing subgroup includes a grabbing and releasing fixed plate, a grabbing and releasing rotating module and a steel ball lifting and transferring plate. One side of the grabbing and releasing fixed plate is connected to the slider connecting plate, and a grabbing and releasing rotating module is arranged on the other side of the grabbing and releasing fixed plate. The lower end of the grabbing and releasing rotating module is connected to one end of the steel ball lifting and transferring plate, and a steel ball grabbing and releasing part is arranged on the other end of the steel ball lifting and transferring plate. The grabbing and releasing rotating module drives the steel ball lifting and transferring plate to rotate to one side of the steel ball receiving component, and the steel balls are grabbed and conveyed through the steel ball grabbing and releasing part and docked with one end of the steel ball receiving and transferring plate, and the steel balls are transferred to the top of the test component.

10. The steel ball impact sub-mechanism for a needle puncture sensitivity tester according to claim 9, characterized in that: The test component clamping assembly includes a pair of clamping telescopic modules, which are arranged on the inner wall of the impact test chamber at relative intervals, and test component clamping fingers are arranged on the opposite telescopic ends of the pair of clamping telescopic modules. The pair of test component clamping fingers are used to clamp and fix the outer periphery of the test component.

Images