Feeding device of firing pin sharpening machine tool

Abstract

The utility model discloses a feeding device of a firing pin sharpening machine tool, which comprises a fixedly suspended rectangular frame, a back plate is fixed on the frame surface of one side of the rectangular frame, and a gap is formed between the lower frame edge of the rectangular frame and the back plate; an inclined hopper is arranged in the rectangular frame, the lower end of the inclined hopper is located right above the gap, the bottom of a chamber in the inclined hopper extends to the lower end of the inclined hopper to form a linear blanking port, and the linear blanking port is located right above the gap; the linear motion platform is arranged below the lower frame edge of the rectangular frame, and the linear motion direction of the linear motion platform is perpendicular to the length direction of the chamber in the inclined hopper; a linear groove is formed in the top face of the linear motion platform, a linear motion driving mechanism is further fixed to the linear motion platform, the linear motion track of the action end of the linear motion driving mechanism is parallel to the linear groove, the action end of the linear motion driving mechanism is fixedly connected with a push plate, and one side of the push plate extends to the position above the linear groove. The automatic feeding device can replace manual operation to feed materials to a sharpening machine tool, and the working efficiency of firing pin sharpening is improved.

Description

Technical Field

[0001] The utility model relates to the field of striker tip grinding machines, in particular to a feeding device for a striker tip grinding machine. Background Art

[0002] In military engineering such as strategic missiles and conventional ammunitions, initiating explosive devices are widely used. Whether the initiating explosive devices meet the specified standards, it is necessary to evaluate their safety and reliability. And the sensitivity of initiating explosive devices is an important indicator of their safety and reliability. Therefore, before leaving the factory, shell-type initiating explosive devices must be subjected to stab sensitivity tests, and the striker is an essential component in the stab sensitivity test.

[0003] At present, the output of strikers cannot meet the existing demand. The main reason is that the tip grinding of strikers is the bottleneck process in the striker production process. In the existing grinding machines for striker tip grinding, when grinding the striker tip, employees need to manually clamp and load the strikers one by one. After the clamping is completed, the operator presses the machine tool button to control the feeding and retracting of the grinding wheel, and then takes out the ground striker. Therefore, the feeding process has low efficiency due to manual operation, which further reduces the tip grinding efficiency. Moreover, when feeding, the striker may not smoothly enter the feeding port, and when feeding, the employee's fingers are very close to the grinding wheel, resulting in four types of injuries: cutting injury, sputtering injury, electric shock injury, and occupational injury. Summary of the Utility Model

[0004] The utility model provides a feeding device for a striker tip grinding machine to solve the problem that the existing striker tip grinding machine requires manual feeding.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A feeding device for a striker tip grinding machine, comprising a rectangular frame (1) fixedly suspended, both side frames of the rectangular frame (1) are vertical, a back plate (2) is fixed on one side frame of the rectangular frame (1), and there is a gap (1.5) between the lower frame edge (1.1) of the rectangular frame (1) and the back plate (2). The length of the gap (1.5) matches the length of a striker, and the width of the gap (1.5) is greater than or equal to the outer diameter of one striker and less than the outer diameter of two strikers;

[0007] Inside the rectangular frame (1), an inclined hopper (3) is fixed. The lower end of the inclined hopper (3) is directly above the gap (1.5) between the lower frame edge (1.1) and the back plate (2). The vertical distance between the lower end of the inclined hopper (3) and the top surface of the gap (1.5) is less than the outer diameter of a firing pin. The length of the inner chamber of the inclined hopper (3) matches that of the firing pin. The bottom of the chamber of the inclined hopper (3) extends to the lower end of the inclined hopper (3) to form a linear material dropping opening (4). Thus, the linear material dropping opening (4) is directly above the gap (1.5) between the lower frame edge (1.1) and the back plate (2). The vertical distance between the bottom surface of the linear material dropping opening (4) and the top surface of the gap (1.5) is less than the outer diameter of a firing pin, and the width of the linear material dropping opening (4) is greater than or equal to the outer diameter of a firing pin and less than twice the outer diameter of a firing pin.

[0008] It further includes a linear motion platform (5) provided below the lower frame edge (1.1) of the rectangular frame (1). The linear motion direction of the linear motion platform (5) is perpendicular to the length direction of the inner chamber of the inclined hopper (3). A linear groove (6) is provided on the top surface of the linear motion platform (5). The length direction of the linear groove (6) is parallel to the length direction of the inner chamber of the inclined hopper (3). The width of the linear groove (6) is greater than or equal to the outer diameter of a firing pin and less than twice the outer diameter of a firing pin. The height of the linear groove (6) is less than the outer diameter of a firing pin, and when the linear groove (6) moves with the linear motion platform (5), it can pass directly below the gap (1.5) between the lower frame edge (1.1) and the back plate (2). A linear motion driving mechanism (7) is also fixed on the linear motion platform (5). The linear motion track of the action end in the linear motion driving mechanism (7) is parallel to the length direction of the linear groove (6), and a push plate (8) is fixedly connected to the action end of the linear motion driving mechanism (7). One side of the push plate (8) extends above the linear groove (6).

[0009] Further, the linear motion platform (5) is a platform driven by a cylinder or a hydraulic cylinder.

[0010] Further, the linear motion platform (5) is a slide in a screw slide mechanism.

[0011] Further, the linear motion driving mechanism (7) is a cylinder or a hydraulic cylinder, with the end of the piston rod of the cylinder or the hydraulic cylinder as the action end, and the push plate (8) is fixed to the end of the piston rod.

[0012] Further, the linear motion driving mechanism (7) is a screw slider mechanism, with the slider in the screw slider mechanism as the action end, and the push plate (8) is fixed to the slider.

[0013] In the present utility model, multiple firing pins are placed in the inclined hopper parallel to the long side direction of the inner chamber of the inclined hopper. Since the width of the straight-line type blanking port at the lower end of the inclined hopper is greater than or equal to the outer diameter of one firing pin and less than the outer diameter of two firing pins, the multiple firing pins can only fall one by one through the straight-line type blanking port into the gap between the lower frame edge of the rectangular frame and the back plate. When the linear motion platform moves to a position where the linear groove passes below the gap between the lower frame edge of the rectangular frame and the back plate, the firing pin can enter the linear groove through the gap. After the firing pin enters the linear groove, since the height of the linear groove is less than the outer diameter of one firing pin, a part of the firing pin protrudes above the top surface of the linear groove. At this time, the push plate is driven to act by the linear motion driving mechanism, and the part of the push plate located above the linear groove is used to push the firing pin along the linear groove, and finally the firing pin is sent into the sharpening component of the sharpening machine tool.

[0014] Thus, the present utility model can replace manual operation for feeding the sharpening machine tool, can realize continuous processing of firing pin sharpening, thereby improving the working efficiency of firing pin sharpening, solving the problem of insufficient production capacity of firing pin sharpening, and avoiding the safety risk problem existing in manual feeding in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of an embodiment of the present utility model.

[0016] Figure 2 is an exploded view of the structure of an embodiment of the present utility model.

[0017] Figure 3 is a schematic structural diagram of the connection structure of the bottom plate and the rectangular frame of an embodiment of the present utility model.

[0018] Figure 4 is a side perspective view of the connection structure of the rectangular frame and the inclined hopper of an embodiment of the present utility model.

[0019] Figure 5 is a schematic structural diagram of the connection structure of the linear motion platform, the linear motion driving mechanism and the push plate of an embodiment of the present utility model.

[0020] Figure 6 is a top view of the connection structure of the linear motion platform, the linear motion driving mechanism and the push plate of an embodiment of the present utility model.

[0021] Figure 7 is a state diagram of the connection structure of the linear motion platform, the linear motion driving mechanism and the push plate of an embodiment of the present utility model when pushing out the firing pin.

[0022] Figure 8 is a working process diagram (top view angle) of an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0024] As Figure 1 , Figure 2 , Figure 3 shown, this embodiment discloses a feeding device for a firing pin sharpening machine tool, including a bottom plate 9 and a rectangular frame 1 arranged above the bottom plate 9. For the convenience of description, Figure 1 in the horizontal left - right direction is the X - direction, and in the horizontal front - back direction is the Y - direction. The rectangular frame 1 includes a lower frame edge 1.1 and an upper frame edge 1.2 in the X - direction horizontal, and a left frame edge 1.4 and a right frame edge 1.5 in the Z - direction vertical. The right end of the upper frame edge 1.2 is fixedly connected to the upper left end of the left side surface of the right frame edge 1.5, the right end of the lower frame edge 1.1 is fixedly connected to the lower left end of the left side surface of the right frame edge 1.5, the upper end of the left frame edge 1.4 is fixedly connected to the bottom left end of the upper frame edge 1.2, the left end of the lower frame edge 1.1 is fixedly connected to the middle position of the right side surface of the left frame edge 1.4. The lower end of the left frame edge 1.4 extends downward beyond the bottom surface of the lower frame edge 1.1 to form an extension part, and the lower end of the extension part of the left frame edge 1.4 is fixedly connected to the base 9, thereby forming a rectangular frame 1 fixedly suspended above the bottom plate 9. And the front and rear side frames of the rectangular frame 1 are vertical. The space surrounded by the lower frame edge 1.1, the upper frame edge 1.2, the left frame edge 1.4 and the right frame edge 1.5 constitutes the inside of the rectangular frame 1.

[0025] A back plate 2 is fixed to the rear side frame of the rectangular frame 1. Specifically, the back plate 2 is fixed to the rear side surfaces of the upper frame edge 1.2, the left frame edge 1.4, and the right frame edge 1.5. The lower side edge of the back plate 2 is flush with the bottom surface of the lower frame edge 1.1, the upper side edge of the back plate 2 is flush with the top surface of the upper frame edge 1.2, the right side edge of the back plate 2 is flush with the right side surface of the right frame edge 1.5, and the left side edge of the back plate 2 is flush with the left side surface of the left frame edge 1.4. And the width of the lower frame edge 1.1 of the rectangular frame 1 in the Y - direction is less than the width of the upper frame edge 1.2 in the Y - direction, thereby forming a gap 1.5 between the rear side surface of the lower frame edge 1.1 and the back plate 2. The length of the gap 1.5 in the X - direction matches the axial length of a firing pin 10, and the width of the gap 1.5 in the Y - direction is greater than or equal to the outer diameter of a firing pin 10 and less than the outer diameter of two firing pins. Thus, only a horizontal firing pin 10 with an axis in the X - direction can fall through the gap 1.5.

[0026] As Figure 3 , Figure 4As shown in the figure, an inclined hopper 3 is fixed inside a rectangular frame 1. The long side of the inclined hopper 3 is in the X direction. The top of the inclined hopper 3 is the mouth part. The lower end of the inclined hopper 3 is directly above the gap 1.5 between the lower frame edge 1.1 and the back plate 2, and the vertical distance between the lower end of the inclined hopper 3 and the top surface of the gap 1.5 is less than the outer diameter of a firing pin 10. The X - direction length of the internal chamber of the inclined hopper 3 matches the axial length of the firing pin 10. The bottom of the internal chamber of the inclined hopper 3 extends to the lower end of the inclined hopper 3 to form a linear blanking port 4. The width of the linear blanking port 4 in the Y direction is greater than or equal to the outer diameter of a firing pin 10 and less than twice the outer diameter of the firing pin, and the X - direction length of the linear blanking port 4 matches the axial length of the internal chamber of the inclined hopper 3 and the firing pin 10. Through the above structural design, the linear blanking port 4 is directly above the gap 1.5 between the lower frame edge 1.1 and the back plate 2, and the vertical distance between the bottom surface of the linear blanking port 4 and the top surface of the gap 1.5 is less than the outer diameter of a firing pin 10.

[0027] The inclined hopper 3 is used to place multiple firing pins with their axes horizontally in the X direction. When multiple firing pins are placed in the inclined hopper 3, the inclined surface of the internal chamber of the inclined hopper 3 drops to the linear blanking port 4. Since the size of the linear blanking port 4 in the Y direction can only allow a firing pin 10 with its axis in the X direction to drop through, multiple firing pins can only drop through the linear blanking port 4 one by one and enter the gap 1.5 below the linear blanking port 4. And because the vertical distance between the bottom surface of the linear blanking port 4 and the top surface of the gap 1.5 is less than the outer diameter of a firing pin 10, a single firing pin 10 with its axis in the X direction will not deviate when passing between the bottom surface of the linear blanking port 4 and the top surface of the gap 1.5. Thus, it can be determined that each firing pin 10 in the inclined hopper 3 enters the gap 1.5 between the lower frame edge 1.1 and the back plate 2 one by one through the linear blanking port 4. And because the size of the gap 1.5 can also only allow a firing pin 10 with its axis in the X direction to pass through, finally each firing pin 10 drops through the gap 1.5 one by one.

[0028] Such as Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 、 Figure 7As shown in the figure, this embodiment further includes a linear motion platform 5 provided below the lower frame edge 1.1 of the rectangular frame 1. The linear motion platform 5 is driven by a cylinder or a hydraulic cylinder 11 to perform a linear motion perpendicular to the length direction of the inner chamber of the inclined hopper 3, that is, the linear motion platform 5 performs a linear motion in the Y direction. Specifically, the cylinder or the hydraulic cylinder 11 is fixed to the cylinder or the hydraulic cylinder 11 on the front side of the bottom plate 9, the piston rod of the cylinder or the hydraulic cylinder 11 extends horizontally backward, and the linear motion platform 5 is fixed to the rod end of the piston rod of the cylinder or the hydraulic cylinder 11. The X-direction length of the linear motion platform 5 is greater than the X-direction length of the rectangular frame 1, the Y-direction width of the linear motion platform 5 is greater than the Y-direction width of the rectangular frame 1, and the lower frame edge 1.1 of the rectangular frame 1 can always form a projection on the top surface of the linear motion platform 5, that is, the gap 1.5 between the lower frame edge 1.1 of the rectangular frame 1 and the back plate 2 can always form a projection on the top surface of the linear motion platform 5.

[0029] A linear groove 6 is provided at the rear side position of the top surface of the linear motion platform 5. The length direction of the linear groove 6 is parallel to the length direction of the inner chamber of the inclined hopper 3, that is, the length direction of the linear groove 6 is the X direction. The length of the linear groove 6 is the axial length of a firing pin 10. The left end of the linear groove 6 is located at the left side edge of the top surface of the linear motion platform 5, the right end of the linear groove 6 is located at the right side edge of the top surface of the linear motion platform 5, or there is a certain distance between the right end of the linear groove 6 and the right side edge of the top surface of the linear motion platform 5. The Y-direction width of the linear groove 6 is greater than or equal to the outer diameter of one firing pin and less than the outer diameter of two firing pins. The height of the linear groove 6 is less than the outer diameter of one firing pin. Thus, when the linear groove 6 moves with the linear motion platform 5, all or part of the linear groove 6 can always pass through the projection formed by the gap 1.5 between the lower frame edge 1.1 of the rectangular frame 1 and the back plate 2 on the top surface of the linear motion platform 5.

[0030] When a firing pin 10 falls through the gap 1.5 and the linear motion platform 5 moves to a position where the linear groove 6 is located below the gap 1.5 between the lower frame edge 1.1 of the shaped frame 1 and the back plate 2, the firing pin 10 will fall into the linear groove 6. Limited by the size of the linear groove 6, the linear groove 6 can only accommodate one firing pin 10. Since the height of the linear groove 6 is less than the outer diameter of one firing pin 10, a part of the firing pin 10 protrudes from the top surface of the linear groove 6. And, it only needs to be ensured that the vertical distance between the top surface of the linear motion platform 5 (i.e., the top surface of the linear groove 6) and the bottom surface of the lower frame edge 1.1 of the rectangular frame 1 is greater than or equal to the height of the exposed part of the firing pin 10 protruding from the linear groove 6, so as to ensure that the linear motion platform 5 carrying the firing pin 10 can continue to move linearly without interference.

[0031] A linear motion driving mechanism 7 is fixed at the rear right position of the top surface of the linear motion platform 5, and the linear motion driving mechanism 7 is located in front of the linear groove 6. The linear motion driving mechanism 7 is a cylinder or a hydraulic cylinder, and the piston rod of the cylinder or the hydraulic cylinder extends horizontally to the left. The rod end of the piston rod of the cylinder or the hydraulic cylinder is used as the action end of the linear motion driving mechanism 7. Thus, the linear motion trajectory of the action end of the linear motion driving mechanism 7 is parallel to the length direction of the linear groove 6, that is, along the X direction. A push plate 8 is fixedly connected to the action end (i.e., the rod end of the piston rod of the cylinder or the hydraulic cylinder) of the linear motion driving mechanism 7, and the rear side of the push plate 8 extends above the linear groove 6 to form an extension part.

[0032] As Figure 8 shown, when the linear groove 6 on the top surface of the linear motion platform 5 receives a firing pin 10, and the linear motion platform 5 moves to the position where the lower frame edge 1.1 of the rectangular frame 1 away from the linear groove 6 forms a projection on the top surface of the linear motion platform 5, the linear motion driving mechanism 7 moves to the left, driving the push plate 8 to move to the left. Since the firing pin 10 has an exposed part when it protrudes from the linear groove 6, the push plate 8 can apply a force to the exposed part at the rear end of the axis of the firing pin 10, thereby pushing the firing pin 10 out of the linear groove 6, and then sending the firing pin 10 into the sharpening part of the firing pin sharpening machine tool. And, it only needs to ensure that the vertical distance between the bottom surface of the extension part of the push plate 8 located above the linear groove 6 and the top surface of the linear groove 6 is less than the height of the exposed part of the firing pin 10 protruding from the linear groove 6, so as to ensure that the push plate 8 can smoothly perform the action of pushing the firing pin 10.

[0033] It should be noted that in this embodiment, the linear motion platform 5 can also be a slide in a lead screw slide mechanism, and the linear motion driving mechanism 7 in this embodiment can also be a lead screw slider mechanism, and the slider in the lead screw slider mechanism is used as the action end. In addition, applying this embodiment and using other motion platforms capable of realizing linear motion and using other driving mechanisms capable of realizing linear motion driving should all be regarded as falling within the protection scope of the present invention.

[0034] The preferred embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. The embodiments described in the present invention are only descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. Among the various specific technical features described in the above specific embodiments, they can be combined in any suitable way without contradiction. As long as such a combination does not violate the idea of the present invention, it should also be regarded as the content disclosed by the present disclosure. To avoid unnecessary repetition, the present invention does not separately describe various possible combination methods.

[0035] The present utility model is not limited to the specific details in the above embodiments. Without departing from the technical concept of the present utility model and under the premise of not deviating from the design concept of the present utility model, various modifications and improvements made by those skilled in the art to the technical solution of the present utility model shall fall within the protection scope of the present utility model. The technical content claimed by the present utility model has been fully recorded in the claims.

Claims

1. A loading device for a firing pin sharpening machine tool, characterized in that, It includes a fixedly suspended rectangular frame (1), with the two side surfaces of the rectangular frame (1) being vertical. A back plate (2) is fixed to one of the side surfaces of the rectangular frame (1), and there is a gap (1.5) between the lower frame edge (1.1) of the rectangular frame (1) and the back plate (2). The length of the gap (1.5) matches the length of a firing pin, and the width of the gap (1.5) is greater than or equal to the outer diameter of a firing pin and less than twice the outer diameter of a firing pin. An inclined hopper (3) is fixed inside the frame of the rectangular frame (1). The lower end of the inclined hopper (3) is located directly above the gap (1.5) between the lower frame edge (1.1) and the back plate (2). The vertical distance between the lower end of the inclined hopper (3) and the top surface of the gap (1.5) is less than the outer diameter of a firing pin. The length of the inner chamber of the inclined hopper (3) matches the length of the firing pin. The bottom of the chamber of the inclined hopper (3) extends to the lower end of the inclined hopper (3) to form a linear material dropping opening (4). Thus, the linear material dropping opening (4) is located directly above the gap (1.5) between the lower frame edge (1.1) and the back plate (2). The vertical distance between the bottom surface of the linear material dropping opening (4) and the top surface of the gap (1.5) is less than the outer diameter of a firing pin, and the width of the linear material dropping opening (4) is greater than or equal to the outer diameter of a firing pin and less than twice the outer diameter of a firing pin. It further includes a linear motion platform (5) disposed below the lower frame edge (1.1) of the rectangular frame (1). The linear motion direction of the linear motion platform (5) is perpendicular to the length direction of the inner chamber of the inclined hopper (3). A linear groove (6) is provided on the top surface of the linear motion platform (5). The length direction of the linear groove (6) is parallel to the length direction of the inner chamber of the inclined hopper (3). The width of the linear groove (6) is greater than or equal to the outer diameter of a firing pin and less than twice the outer diameter of a firing pin. The height of the linear groove (6) is less than the outer diameter of a firing pin, and when the linear groove (6) moves with the linear motion platform (5), it can pass directly below the gap (1.5) between the lower frame edge (1.1) and the back plate (2). A linear motion driving mechanism (7) is also fixed on the linear motion platform (5). The linear motion track of the action end in the linear motion driving mechanism (7) is parallel to the length direction of the linear groove (6), and a push plate (8) is fixedly connected to the action end of the linear motion driving mechanism (7). One side of the push plate (8) extends above the linear groove (6).

2. The feeding device of a firing pin sharpening machine tool according to claim 1, characterized in that, The linear motion platform (5) is a platform driven by a cylinder or a hydraulic cylinder.

3. The feeding device of a firing pin sharpening machine tool according to claim 1, characterized in that, The linear motion platform (5) is a slide in a lead screw and slide mechanism.

4. The feeding device of a firing pin sharpening machine tool according to claim 1, characterized in that, The linear motion driving mechanism (7) is a cylinder or a hydraulic cylinder, with the end of the piston rod of the cylinder or hydraulic cylinder as the action end, and the push plate (8) is fixed to the end of the piston rod.

5. The feeding device of a firing pin sharpening machine tool according to claim 1, characterized in that, The linear motion driving mechanism (7) is a lead screw and slider mechanism, with the slider in the lead screw and slider mechanism as the action end, and the push plate (8) is fixed to the slider.

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