Bolt machining and capping device

Abstract

The utility model belongs to the technical field of bolt machining, and particularly relates to a bolt machining and capping device which comprises a bolt cap stamping machine body, a hydraulic stamping rod and an upper forming female die, a lower limiting female die is arranged below the upper forming female die, and a conical receding groove is formed in the bottom end of the lower limiting female die. The bottom end of the lower limiting female die is detachably connected with a bottom positioning table matched with the conical receding groove in size, and a limiting adjusting assembly used for adjusting the position of the lower limiting female die is installed on the side wall of the lower limiting female die. The lower limiting female die and the bottom positioning table are separately spliced, so that the lower limiting female die can be driven to move upwards through the limiting adjusting assembly in the upward moving and resetting process after a bolt cap is punched and formed by the hydraulic punching rod, and an unshielded waste discharging channel is formed between the lower limiting female die and the bottom positioning table; and in cooperation with the inclined surface of the frustum of the bottom positioning table, the flushing nozzle can smoothly flush the waste out of the mold, so that the waste is prevented from affecting the accuracy of the bolt machining size.

Description

Technical Field

[0001] The utility model belongs to the technical field of bolt processing, and particularly relates to a bolt processing capping device. Background Art

[0002] During the processing of large-size bolts, one end of the raw rod will be heated, and then the heated end will be stamped through hydraulic equipment to form a bolt end cap. During the stamping process after heating, an oxide layer will be produced on the bolt raw rod, and it will fall off downward under the action of stamping. After the staff takes the bolt raw rod out of the mold, the oxide layer and other waste materials will fall into the positioning hole in the mold, which will affect the insertion of the subsequent installed bolt raw rod, and further affect the accuracy of the size of the end cap of the bolt raw rod stamped. Utility Model Content

[0003] The utility model provides a bolt processing capping device, which has the characteristics of being able to smoothly flush waste materials out of a mold to prevent the waste materials from affecting the accuracy of bolt processing dimensions.

[0004] The utility model provides the following technical solutions: a bolt processing and capping device, comprising a bolt nut punching machine body, a hydraulic punch and an upper forming die, a lower limit die is arranged below the upper forming die, a conical clearance groove is opened at the bottom end of the lower limit die, a bottom positioning platform matching the size of the conical clearance groove is detachably connected to the bottom end of the lower limit die, a limit adjustment component for adjusting the position of the lower limit die is installed on the side wall of the lower limit die, and a flushing nozzle is installed in the lower limit die.

[0005] Among them, the limit adjustment assembly includes a telescopic adjustment rod, a limit connecting sleeve and a connecting rod, the limit connecting sleeve is arranged on the outer wall of the telescopic adjustment rod, the limit connecting sleeve is fixedly connected to the lower limit die, the connecting rod is fixedly connected to the top end of the telescopic adjustment rod, and the limit adjustment assembly is fixedly connected to the hydraulic punch.

[0006] Wherein, a clearance through hole is opened on the inner wall of the lower limit die, and the flushing nozzle is fixedly connected to the inner wall of the clearance through hole.

[0007] Wherein, one end of the flushing nozzle is fixedly connected to a water delivery hose, and the water delivery hose extends out of the clearance through hole.

[0008] Wherein, a material-returning telescopic rod is installed at the bottom end of the bottom positioning platform, and the height of the output shaft of the material-returning telescopic rod is greater than the height of the top end of the bottom positioning platform.

[0009] The beneficial effects of the utility model are: the lower limit die and the bottom positioning platform are designed to be separately spliced, so that the hydraulic punch can drive the lower limit die to move upward through the limit adjustment component during the process of upward movement and resetting after the bolt cap is stamped and formed, so that an unobstructed waste discharge channel is formed between the lower limit die and the bottom positioning platform, and the inclined surface of the cone of the bottom positioning platform itself enables the flushing nozzle to smoothly flush the waste out of the mold, so as to avoid the waste falling into the center hole of the lower limit die affecting the accuracy of the bolt processing size.

[0010] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0013] Figure 3 It is a schematic diagram of the downward pressing state of the lower limit concave die in the utility model;

[0014] Figure 4 It is a schematic diagram of the separation state of the lower limit die and the bottom positioning platform in the utility model.

[0015] In the figure: 1. Bolt nut punching body; 2. Hydraulic punch; 21. Upper forming die; 3. Lower limit die; 31. Conical clearance groove; 32. Bottom positioning platform; 33. Clearance through hole; 4. Limit adjustment assembly; 41. Telescopic adjustment rod; 42. Limit connecting sleeve; 43. Connecting rod; 5. Flushing nozzle; 51. Water supply hose; 6. Material withdrawal telescopic rod. DETAILED DESCRIPTION

[0016] See also Figures 1-4 The utility model provides the following technical solutions: a bolt processing and capping device, including a bolt cap punching machine body 1, a hydraulic punch 2 and an upper forming die 21, a lower limit die 3 is provided below the upper forming die 21, a conical clearance groove 31 is provided at the bottom end of the lower limit die 3, a bottom positioning platform 32 matching the size of the conical clearance groove 31 is detachably connected to the bottom end of the lower limit die 3, a limit adjustment component 4 for adjusting the position of the lower limit die 3 is installed on the side wall of the lower limit die 3, and a flushing nozzle 5 is installed in the lower limit die 3.

[0017] In this embodiment: in the initial state, the lower limit die 3 is fitted with the bottom positioning platform 32, and a distance is left between the upper forming die 21 and the lower limit die 3, and the staff inserts the bolt raw material rod after one end is heated into the central hole of the lower limit die 3, and then the upper forming die 21 moves downward under the drive of the hydraulic punch 2, and the heated bolt raw material rod end is stamped and formed by the cooperation of the lower limit die 3 and the upper forming die 21, and then the hydraulic punch 2 drives the upper forming die 21 and the connecting rod 43 to move up a certain distance, and the output shaft of the material-removing telescopic rod 6 is pushed upward, driving the bolt raw material rod part to extend out of the lower limit die 3, and the staff takes the bolt raw material rod out of the lower limit die 3, and the hydraulic punch 2 continues to drive the connecting rod 43 to move up, and the connecting rod 43 drives the telescopic adjustment rod 41 to move, so as to drive through the limit connecting sleeve 42 The lower limit die 3 moves upward, so that the lower limit die 3 is separated from the bottom positioning platform 32, and an unobstructed waste discharge channel is formed between the lower limit die 3 and the bottom positioning platform 32. The flushing nozzle 5 injects water into the yielding through hole 33, and the water flows downward to flush the oxides and other waste materials that fall on the bottom of the center hole of the lower limit die 3. The bottom positioning platform 32 itself has an inclined cone, so that the water can smoothly flush the waste out of the mold to avoid the waste falling in the center hole of the lower limit die 3 affecting the accuracy of the bolt processing size. In actual use, a cooling water pipe is installed on the bolt cap stamping machine body 1. During the stamping process of the bolt end, the cooling water pipe continuously injects water to the top of the lower limit die 3. The water can enter the center hole of the lower limit die 3 while cooling the lower limit die 3, and can flush the oxide layer and other waste materials.

[0018] The limit adjustment assembly 4 includes a telescopic adjustment rod 41, a limit connection sleeve 42 and a connecting rod 43. The limit connection sleeve 42 is sleeved on the outer wall of the telescopic adjustment rod 41, the limit connection sleeve 42 is fixedly connected to the lower limit die 3, the connecting rod 43 is fixedly connected to the top of the telescopic adjustment rod 41, and the limit adjustment assembly 4 is fixedly connected to the hydraulic punch 2; when the hydraulic punch 2 moves upward, it will pull the connecting rod 43, thereby driving the telescopic adjustment rod 41 to move. After being pulled a certain distance, the upper forming die 21 and the lower limit die 3 are spaced apart. There is a sufficient distance so that the staff can remove the bolt from the lower limit die 3. As the hydraulic punch 2 continues to move upward, when the limit plate at the bottom of the telescopic adjustment rod 41 contacts the limit connecting sleeve 42, the telescopic adjustment rod 41 will pull and lift the limit connecting sleeve 42, thereby driving the lower limit die 3 to move upward. At this time, the lower limit die 3 is separated from the bottom positioning platform 32 to form a discharge space, and the oxide layer and other waste materials are discharged from the gap between the lower limit die 3 and the bottom positioning platform 32 under the flushing of the water flow.

[0019] A relief through hole 33 is provided in the inner wall of the lower limit die cavity 3, and the flushing nozzle 5 is fixedly connected to the inner wall of the relief through hole 33; by providing the relief through hole 33, an installation space is provided for the flushing nozzle 5, so that the flushing nozzle 5 can input water into the relief through hole 33 to input water into the central hole of the lower limit die cavity 3 to wash and clean the waste such as the oxide layer in the central hole of the lower limit die cavity 3.

[0020] One end of the flushing nozzle 5 is fixedly connected with a water delivery hose 51, and the water delivery hose 51 extends out of the relief through hole 33; by providing the water delivery hose 51, the flushing nozzle 5 can be connected to an external water supply device. The flushing nozzle 5 will move along with the lower limit die cavity 3. During the movement of the flushing nozzle 5, the water delivery hose 51 will deform and will not restrict the movement of the flushing nozzle 5. During the installation process, a limiting ring is provided on the outer wall of the flushing nozzle 5, and the flushing nozzle 5 is limited by the frictional force between the limiting ring on the outer wall of the flushing nozzle 5 and the inner wall of the relief through hole 33.

[0021] A material discharging telescopic rod 6 is installed at the bottom end of the bottom positioning table 32, and the height of the output shaft of the material discharging telescopic rod 6 is greater than the height of the top end of the bottom positioning table 32; by providing the material discharging telescopic rod 6, the bolt can be pushed to jack up the bolt by a certain distance, so that the staff can easily take out the bolt from the lower limit die cavity 3. A sealing ring is installed between the output shaft of the material discharging telescopic rod 6 and the bottom positioning table 32 to prevent waste from entering the gap between the output shaft of the material discharging telescopic rod 6 and the bottom positioning table 32. The top end of the output shaft of the material discharging telescopic rod 6 protrudes from the bottom positioning table 32 when in the retracted state, which can prevent the top end of the output shaft of the material discharging telescopic rod 6 and the bottom positioning table 32 from having a recess to retain part of the fertilizer.

[0022] The working principle and usage process of the present utility model: When waiting to place the bolt raw material, there is a distance between the upper forming die cavity 21 and the lower limit die cavity 3. The staff inserts the heated bolt raw material rod into the central hole of the lower limit die cavity 3. Then, the upper forming die cavity 21 moves downward under the drive of the hydraulic punch rod 2, and the end of the heated bolt raw material rod is stamped and formed by the cooperation of the lower limit die cavity 3 and the upper forming die cavity 21. Then, after the hydraulic punch rod 2 drives the upper forming die cavity 21 and the connecting rod 43 to move upward by a certain distance, there is enough distance between the upper forming die cavity 21 and the lower limit die cavity 3. The output shaft of the material discharging telescopic rod 6 jacks upward, driving part of the bolt raw material rod to protrude from the lower limit die cavity 3. The staff takes out the bolt from the lower limit die cavity 3. The hydraulic punch rod 2 continues to drive the connecting rod 43 to move upward, and the connecting rod 43 drives the telescopic adjusting rod 41 to move, so as to drive the lower limit die cavity 3 to move upward through the limiting connecting sleeve 42, so that the lower limit die cavity 3 is separated from the bottom positioning table 32, and an unobstructed waste discharge channel is formed between the lower limit die cavity 3 and the bottom positioning table 32. The flushing nozzle 5 injects water into the relief through hole 33, and the water flows downward to wash the waste such as oxides falling at the bottom of the central hole of the lower limit die cavity 3 and discharge the fertilizer outwards.

Claims

1. A device for processing and capping bolts, comprising a bolt cap stamping machine body (1), a hydraulic punching rod (2) and an upper forming female die (21), characterized in that: A lower limit die (3) is provided below the upper forming female die (21). A tapered relief groove (31) is formed at the bottom end of the lower limit die (3). A bottom positioning table (32) that is dimensionally matched with the tapered relief groove (31) is detachably connected to the bottom end of the lower limit die (3). A limit adjusting component (4) for adjusting the position of the lower limit die (3) is installed on the side wall of the lower limit die (3). A flushing nozzle (5) is installed in the lower limit die (3).

2. A bolt processing and capping device according to claim 1, characterized in that: The limit adjusting component (4) includes a telescopic adjusting rod (41), a limit connecting sleeve (42), and a connecting rod (43). The limit connecting sleeve (42) is sleeved on the outer wall of the telescopic adjusting rod (41). The limit connecting sleeve (42) is fixedly connected to the lower limit die (3). The connecting rod (43) is fixedly connected to the top end of the telescopic adjusting rod (41). The limit adjusting component (4) is fixedly connected to the hydraulic punching rod (2).

3. A bolt processing and capping device according to claim 1, characterized in that: A relief through hole (33) is formed in the inner wall of the lower limit die (3). The flushing nozzle (5) is fixedly connected to the inner wall of the relief through hole (33).

4. A bolt processing and capping device according to claim 3, characterized in that: One end of the flushing nozzle (5) is fixedly connected to a water conveying hose (51). The water conveying hose (51) extends out of the relief through hole (33).

5. A bolt processing and capping device according to claim 1, characterized in that: A blanking telescopic rod (6) is installed at the bottom end of the bottom positioning table (32). The height of the output shaft of the blanking telescopic rod (6) is greater than the height of the top end of the bottom positioning table (32).

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